ADAPTER BRACKET
United States Patent 3554142
An adapter bracket for securing metal seat and foot boards to vertical risers having a plate means at the upper end thereof. The bracket is comprised of a horizontal base portion having an elongated channel means extending downwardly from the bottom side thereof which is adapted to slidably receive a plurality of bolt members therein. The bolt members are prevented from rotation in the channel means and are received by the plate means to secure the bracket to the riser. The metal board is then secured to the bracket by means of a plurality of bolt members which extend through the bolt openings formed in the base portion. The bolt members have clips secured thereto which engage the board to facilitate the attachment of the boards to the bracket. The adapter bracket is also designed to permit the abutting ends of a pair of boards to be secured together. The bracket permits the metal boards to be substituted for the wooden planks which are commonly used as seat and foot boards in grandstands or the like.
US Patent References:
Knock-down bleacher
Burke - May 1961 - 2985924
Plastic bench-seats
Abramson - October 1965 - 3213570
Knock-down bleacher
Burke - May 1961 - 2985924
Plastic bench-seats
Abramson - October 1965 - 3213570
Inventors:
Sorenson, Bill W. (Jefferson, IA)
Klous, Dane R. (Jefferson, IA)
Denhardt, Carl (Jefferson, IA)
Klous, Dane R. (Jefferson, IA)
Denhardt, Carl (Jefferson, IA)
Application Number:
04/815088
Publication Date:
01/12/1971
Filing Date:
04/10/1969
View Patent Images:
Export Citation:
Assignee:
American Athletic Equipment Co. (Greene County, IA)
Primary Class:
Other Classes:
248/235
International Classes:
A47C1/16; E04H3/12; A47C1/00; E04H3/10; E04H3/10
Field of Search:
248/188,188.8,235 52/8,9,188 108/90,97,101,111,114,153,157,159,13,14
Primary Examiner:
Frazier, Roy D.
Claims:
We claim
1. In an adapter bracket for securing an elongated horizontally disposed support member to an upstanding riser having a horizontal plate portion at the upper end thereof, said plate portion having a plurality of openings extending through, comprising:
2. The bracket of claim 1 wherein each of said bolt members has a lock nut threadably mounted thereon, said channel means preventing rotation of said lock nut when said bolt member is threadably moved with respect thereto.
3. In an adapter bracket for securing an elongated horizontally disposed support member to an upstanding riser having a horizontal plate portion at the upper end thereof, said plate portion having a plurality of openings extending through, comprising:
4. The bracket of claim 3 wherein said inverted U-shaped channel means includes spaced apart wall members defining an opening therebetween, said opening having a width greater than the thickness of said lip portion, one of said wall members having a lower end engaging said horizontal portion.
5. In combination, at least a pair of spaced apart, upstanding risers having horizontally disposed plate portions secured to the upper ends thereof, an adapter bracket detachably mounted on each of said plate portions, and a metal support member secured to and extending between said adapter brackets, each of said plate portions having at least first and second bolt openings formed therein, said support member having vertically spaced, inwardly extending flanges each of said adapter brackets including a base portion having a plurality of openings and means associated with openings for engaging the flanges and securing said support member thereto, each of said brackets including a channel means extending downwardly therefrom which is supported by said plate portions, and at least a pair of bolts mounted in said channel means and extending through said plate portion.
6. The bracket of claim 11 wherein said base portion has a width sufficient to support abutting end portions of a pair of support members.
7. The bracket of claim 5 wherein said channel means includes a pair of spaced apart vertical walls extending downwardly from the bottom side of said base portion, said walls having horizontal portions extending inwardly towards each other from the lower ends thereof, the inner ends of said horizontal portions being spaced apart a sufficient distance to permit the threaded portion of the bolt members to extend downwardly therebetween, said distance between said horizontal portions being less than the diameter of the head portion of said bolt members.
8. The bracket of claim 7 wherein said base portion has an elongated ridge portion at its bottom side which extends downwardly therefrom between said walls, said ridge portion adapted to extend into a slot formed in said bolt member to prevent rotation of said bolt members.
9. The bracket of claim 8 wherein said bracket is of extruded aluminum construction.
10. The bracket of claim 7 wherein said bracket is selectively slidably secured to said horizontal plate portion.
11. The bracket of claim 7 wherein said base portion is substantially rectangular in shape and has openings formed in its corner areas, said base portion having an area greater than the area of said horizontal plate portion, said horizontal portions of said channel means adapted to engage the upper surface of said plate portion.
12. The combination of claim 5 wherein said bolts in said channel means are selectively slidably mounted therein to permit said bolts to register with the openings in said plate portion.
13. The bracket of of claim 5 wherein said bracket and said support member are of extruded aluminum construction.
14. The structure of claim 5 wherein lock means is provided in each of said channel means engaging said bolts to limit rotation of said bolts.
15. The structure of claim 14 wherein said base portion has an elongated ridge portion at its bottom side which extends downwardly, said ridge portion being received in a slot formed in said bolt members to prevent rotation of said bolt members.
1. In an adapter bracket for securing an elongated horizontally disposed support member to an upstanding riser having a horizontal plate portion at the upper end thereof, said plate portion having a plurality of openings extending through, comprising:
2. The bracket of claim 1 wherein each of said bolt members has a lock nut threadably mounted thereon, said channel means preventing rotation of said lock nut when said bolt member is threadably moved with respect thereto.
3. In an adapter bracket for securing an elongated horizontally disposed support member to an upstanding riser having a horizontal plate portion at the upper end thereof, said plate portion having a plurality of openings extending through, comprising:
4. The bracket of claim 3 wherein said inverted U-shaped channel means includes spaced apart wall members defining an opening therebetween, said opening having a width greater than the thickness of said lip portion, one of said wall members having a lower end engaging said horizontal portion.
5. In combination, at least a pair of spaced apart, upstanding risers having horizontally disposed plate portions secured to the upper ends thereof, an adapter bracket detachably mounted on each of said plate portions, and a metal support member secured to and extending between said adapter brackets, each of said plate portions having at least first and second bolt openings formed therein, said support member having vertically spaced, inwardly extending flanges each of said adapter brackets including a base portion having a plurality of openings and means associated with openings for engaging the flanges and securing said support member thereto, each of said brackets including a channel means extending downwardly therefrom which is supported by said plate portions, and at least a pair of bolts mounted in said channel means and extending through said plate portion.
6. The bracket of claim 11 wherein said base portion has a width sufficient to support abutting end portions of a pair of support members.
7. The bracket of claim 5 wherein said channel means includes a pair of spaced apart vertical walls extending downwardly from the bottom side of said base portion, said walls having horizontal portions extending inwardly towards each other from the lower ends thereof, the inner ends of said horizontal portions being spaced apart a sufficient distance to permit the threaded portion of the bolt members to extend downwardly therebetween, said distance between said horizontal portions being less than the diameter of the head portion of said bolt members.
8. The bracket of claim 7 wherein said base portion has an elongated ridge portion at its bottom side which extends downwardly therefrom between said walls, said ridge portion adapted to extend into a slot formed in said bolt member to prevent rotation of said bolt members.
9. The bracket of claim 8 wherein said bracket is of extruded aluminum construction.
10. The bracket of claim 7 wherein said bracket is selectively slidably secured to said horizontal plate portion.
11. The bracket of claim 7 wherein said base portion is substantially rectangular in shape and has openings formed in its corner areas, said base portion having an area greater than the area of said horizontal plate portion, said horizontal portions of said channel means adapted to engage the upper surface of said plate portion.
12. The combination of claim 5 wherein said bolts in said channel means are selectively slidably mounted therein to permit said bolts to register with the openings in said plate portion.
13. The bracket of of claim 5 wherein said bracket and said support member are of extruded aluminum construction.
14. The structure of claim 5 wherein lock means is provided in each of said channel means engaging said bolts to limit rotation of said bolts.
15. The structure of claim 14 wherein said base portion has an elongated ridge portion at its bottom side which extends downwardly, said ridge portion being received in a slot formed in said bolt members to prevent rotation of said bolt members.
Description:
This invention relates to an adapter bracket and more particularly pertains to an adapter bracket which is adapted to be secured to a conventional riser found in grandstands or the like to permit a metal board or plank to be substituted for the wooden planks.
Grandstands, stadiums, bleachers, etc. which were constructed several years ago usually used wooden planks or boards as seat and foot boards. These wooden planks are commonly secured to plate members which are mounted at the upper ends of vertical risers and the planks required considerable maintenance. Many of the existing seat and foot boards are now being replaced by metal planks and it has been heretofore necessary to completely change or alter the existing risers to accommodate the metal planks which resulted in considerable expense.
Therefore, it is a principal object of this invention to provide an adapter bracket for securing metal seat and foot boards to conventional vertical risers.
A further object of this invention is to provide an adapter bracket for securing aluminum seat and foot boards to conventional vertical risers which includes means to facilitate the quick and easy attachment of the boards to the risers.
A further object of this invention is to provide and adapter bracket for securing aluminum seat and foot boards to vertical risers wherein the bracket is formed of extruded aluminum.
A further object of this invention is to provide an adapter bracket which permits the abutting ends of two planks to be secured thereto.
A further object of this invention is to provide an adapter bracket which includes an elongated channel on the bottom thereof which slidably receives bolt members to permit the bolt members to be slidably moved with respect to the riser to facilitate the attachment of the bracket to the riser.
A further object of this invention is to provide an adapter bracket for securing aluminum seat and foot boards to vertical risers which is economical of manufacture, durable in use and refined in appearance.
These and other objects will be apparent to those skilled in the art.
This invention consists in the construction, arrangements, and combination of the various parts of the device, whereby the objects contemplated are attained as hereinafter more fully set forth, specifically pointed out in the claims, and illustrated in the accompanying drawings, in which:
FIG. 1 is a fragmentary exploded perspective view of a conventional riser and the wooden board which is to be replaced;
FIG. 2 is an exploded perspective view of the adapter bracket and the aluminum plank to be secured thereto;
FIG. 3 is a fragmentary top elevational view of a pair of seat boards placed in abutting end to end relationship, the broken lines indicating the relative location of the adapter brackets;
FIG. 4 is an enlarged sectional view as seen along lines 4-4 of FIG. 3 with portions thereof cut away to more fully illustrate the invention;
FIG. 5 is an enlarged view as seen along lines 5-5 of FIG. 3 with portions thereof cut away to more fully illustrate the invention;
FIG. 6 is an exploded perspective view of the fastener used to secure the plank to the adapter bracket; and
FIG. 7 is an enlarged sectional view seen on lines 7-7 of FIG. 3.
The numeral 10 generally designates a conventional grandstand riser having an elongated plate 12 secured to the upper end of a post 14. The plate 12 is of conventional construction and is sometimes replaced by an elongated angle or the like which would have a top portion corresponding to the plate 12. Plate 12 is provided with a pair of bolt openings 16 and 18 formed therein which are adapted to receive the bolts 20 and 22 respectively for attaching a conventional wooden seat or foot board 24 to the riser.
The numeral 26 generally refers to a metal plank which is to be substituted for the wooden board 24. Preferably, the plank 26 is constructed of extruded aluminum and includes a top surface 28 having front and back portions 30 and 32 extending downwardly therefrom as best illustrated in FIG. 2. As seen in FIG. 2, plank 26 includes horizontal portions 34 and 36 which extend inwardly from the lower ends of front and back portions 30 and 32 respectively. Lips 38 and 40 extend upwardly from the inner ends of horizontal portions 34 and 36 respectively. Plank 26 also includes a center support means 46 which is of general inverted T-shape having a lower end 48. An end cap 50 is adapted to embrace one end of the plank 26 as illustrated in FIG. 2 and is maintained thereon by a pair of screws 52 and 54 extending through end cap 50 and the openings 56 and 58 respectively in plank 28.
The adapter bracket of this invention is generally designated by the reference numeral 60 and is preferably constructed of extruded aluminum. Bracket 60 includes a generally rectangular base portion 62 having bolt openings 64, 66, 68 and 70 extending therethrough at the corners thereof. An elongated channel means 72 is provided on the bottom of base portion 62 and is generally comprised of a pair of vertical sidewalls 74 and 76 extending downwardly from base portion 62. Flange portions 78 and 80 extend inwardly from the lower ends of sidewalls 74 and 76 respectively and terminate in a spaced relationship with respect to each other so as to provide an opening 82 therebetween. The distance between the inner ends of flange portions 78 and 80 is such to permit the shank portion 84 of a bolt means 86 to extend downwardly therethrough while preventing the head portion 88 of the bolt means 86 from passing therethrough. Bolt means 86 is a standard truss head machine screw having a slot 90 formed in the head portion thereof which is adapted to ordinarily receive a screwdriver or the like. Bolt means 86 includes a standard lock nut 92. As best illustrated in FIG. 5, bracket 60 includes an elongated ridge 94 which extends downwardly from the bottom of base portion 62 between sidewalls 74 and 76 and which is adapted to be received by the slot 90 of the bolt means 86 when bolt means 86 has been slidably inserted into the channel means 72 to prevent rotation of the bolt means 86 when lock nut 92 is threadably moved thereon.
The installation procedure is as follows: The bolts 20 and 22 would be removed from the riser 10 and the board 24 would be removed therefrom and discarded. The adapter bracket 60 is then secured to the riser 10 by first slidably inserting a pair of bolt means 86 into the channel means 72 (FIGS. 2 and 5) and then inserting the two bolts downwardly through the openings 16 and 18 in plate 12. The bolt means 86 may be slidably moved in the channel means 72 to permit the bolt means 86 to be moved therein to register with the openings 16 and 18. The lock nuts 92 are then threadably mounted on the bolt means 86 and tightened to maintain the adapter bracket 60 on the riser 10. It should be noted that the bracket 60 can also be slidably moved with respect to the riser 10 by simply loosening the bolt means 86 to reposition the bracket 60 with respect thereto.
The plank 26 is then secured to the adapter bracket 60 by inserting the bolts 96 upwardly through certain of the openings 64, 66, 68 and 70. Bolts 96 are of the lock head type and are adapted to threadably receive flat weld nuts 98 thereon (FIG. 6).
The numeral 100 generally refers to a seat clamp including a base portion 102 having an opening 104 extending therethrough. An inverted U-shaped channel 106 is provided at one side of base portion 102 while an upstanding flange 108 is provided at the other side thereof. As seen in FIG. 6, bolt 96 is adapted to extend upwardly through opening 104 so that the bolt 96 may be threadably received by the nut 98. Channel 106 and flange 108 prevent nut 98 from rotating while bolt 96 is being threadably moved with respect to nut 98. As seen in FIG. 4, channel 106 is adapted to extend over the lips 38 or 40. Thus, the bolts 96 are extended upwardly through certain of the openings 64, 66, 68 and 70 and clamps 100 mounted thereon by the nuts 98 as previously described and as illustrated in FIG. 4. The tightening of the bolt 98 maintains the channel 106 over the lip 38 or 40 to maintain the plank on the adapter bracket. The configuration of the clamps 100 also permits selective slidable movement of the plank with respect to the adapter bracket 60 if desired. The opening 107 defined by channel 106 has a width slightly greater than the thickness of the lip 40 to provide compensation for slight variations in the width of the plank 26 or its position on bracket 60. The lower end 109 of channel 106 engages horizontal portion 36 to prevent slidable movement of the plank 26 with respect to the bracket 60. FIG. 3 illustrates the manner in which the planks 26 are secured to the various adapter brackets. For example, when the adapter bracket merely supports a single seat board, as illustrated at the left side of FIG. 3, a pair of bolts 96 are inserted through opposite corners of the bracket. When the bracket supports abutting ends of two planks, four of the bolts 96 are inserted through the bracket 60 as illustrated at the center portion of FIG. 3. When the mounting bracket 60 is being used to support foot boards, it is recommended that four bolts 96 be inserted through the bracket 60 to provide additional support. The four bolts in the mounting bracket reduces the twist in the plank when people would walk on the same.
The adapter bracket described herein permits aluminum planks to be substituted for the wooden seat and foot boards found in existing grandstands, bleachers, stadiums, etc. with a minimum amount of effort and expense. The adapter bracket 60 permits the planks 26 to be mounted on the existing metal seat support. The adapter plate described herein permits the metal planks 26 to be installed in the existing grandstands without the necessity of completely altering the existing risers which greatly reduces the time and expense normally associated with such a conversion operation. The fact that the bracket 60 is of extruded aluminum construction permits the bracket to be economically and efficiently manufactured. Thus it can be seen that the bracket accomplishes at least all of its stated objectives.
Some changes may be made in the construction and arrangement of our adapter bracket without departing from the real spirit and purpose of our invention, and it is our intention to cover by our claims, any modified forms of structure or use of mechanical equivalents which may be reasonably included within their scope.
Grandstands, stadiums, bleachers, etc. which were constructed several years ago usually used wooden planks or boards as seat and foot boards. These wooden planks are commonly secured to plate members which are mounted at the upper ends of vertical risers and the planks required considerable maintenance. Many of the existing seat and foot boards are now being replaced by metal planks and it has been heretofore necessary to completely change or alter the existing risers to accommodate the metal planks which resulted in considerable expense.
Therefore, it is a principal object of this invention to provide an adapter bracket for securing metal seat and foot boards to conventional vertical risers.
A further object of this invention is to provide an adapter bracket for securing aluminum seat and foot boards to conventional vertical risers which includes means to facilitate the quick and easy attachment of the boards to the risers.
A further object of this invention is to provide and adapter bracket for securing aluminum seat and foot boards to vertical risers wherein the bracket is formed of extruded aluminum.
A further object of this invention is to provide an adapter bracket which permits the abutting ends of two planks to be secured thereto.
A further object of this invention is to provide an adapter bracket which includes an elongated channel on the bottom thereof which slidably receives bolt members to permit the bolt members to be slidably moved with respect to the riser to facilitate the attachment of the bracket to the riser.
A further object of this invention is to provide an adapter bracket for securing aluminum seat and foot boards to vertical risers which is economical of manufacture, durable in use and refined in appearance.
These and other objects will be apparent to those skilled in the art.
This invention consists in the construction, arrangements, and combination of the various parts of the device, whereby the objects contemplated are attained as hereinafter more fully set forth, specifically pointed out in the claims, and illustrated in the accompanying drawings, in which:
FIG. 1 is a fragmentary exploded perspective view of a conventional riser and the wooden board which is to be replaced;
FIG. 2 is an exploded perspective view of the adapter bracket and the aluminum plank to be secured thereto;
FIG. 3 is a fragmentary top elevational view of a pair of seat boards placed in abutting end to end relationship, the broken lines indicating the relative location of the adapter brackets;
FIG. 4 is an enlarged sectional view as seen along lines 4-4 of FIG. 3 with portions thereof cut away to more fully illustrate the invention;
FIG. 5 is an enlarged view as seen along lines 5-5 of FIG. 3 with portions thereof cut away to more fully illustrate the invention;
FIG. 6 is an exploded perspective view of the fastener used to secure the plank to the adapter bracket; and
FIG. 7 is an enlarged sectional view seen on lines 7-7 of FIG. 3.
The numeral 10 generally designates a conventional grandstand riser having an elongated plate 12 secured to the upper end of a post 14. The plate 12 is of conventional construction and is sometimes replaced by an elongated angle or the like which would have a top portion corresponding to the plate 12. Plate 12 is provided with a pair of bolt openings 16 and 18 formed therein which are adapted to receive the bolts 20 and 22 respectively for attaching a conventional wooden seat or foot board 24 to the riser.
The numeral 26 generally refers to a metal plank which is to be substituted for the wooden board 24. Preferably, the plank 26 is constructed of extruded aluminum and includes a top surface 28 having front and back portions 30 and 32 extending downwardly therefrom as best illustrated in FIG. 2. As seen in FIG. 2, plank 26 includes horizontal portions 34 and 36 which extend inwardly from the lower ends of front and back portions 30 and 32 respectively. Lips 38 and 40 extend upwardly from the inner ends of horizontal portions 34 and 36 respectively. Plank 26 also includes a center support means 46 which is of general inverted T-shape having a lower end 48. An end cap 50 is adapted to embrace one end of the plank 26 as illustrated in FIG. 2 and is maintained thereon by a pair of screws 52 and 54 extending through end cap 50 and the openings 56 and 58 respectively in plank 28.
The adapter bracket of this invention is generally designated by the reference numeral 60 and is preferably constructed of extruded aluminum. Bracket 60 includes a generally rectangular base portion 62 having bolt openings 64, 66, 68 and 70 extending therethrough at the corners thereof. An elongated channel means 72 is provided on the bottom of base portion 62 and is generally comprised of a pair of vertical sidewalls 74 and 76 extending downwardly from base portion 62. Flange portions 78 and 80 extend inwardly from the lower ends of sidewalls 74 and 76 respectively and terminate in a spaced relationship with respect to each other so as to provide an opening 82 therebetween. The distance between the inner ends of flange portions 78 and 80 is such to permit the shank portion 84 of a bolt means 86 to extend downwardly therethrough while preventing the head portion 88 of the bolt means 86 from passing therethrough. Bolt means 86 is a standard truss head machine screw having a slot 90 formed in the head portion thereof which is adapted to ordinarily receive a screwdriver or the like. Bolt means 86 includes a standard lock nut 92. As best illustrated in FIG. 5, bracket 60 includes an elongated ridge 94 which extends downwardly from the bottom of base portion 62 between sidewalls 74 and 76 and which is adapted to be received by the slot 90 of the bolt means 86 when bolt means 86 has been slidably inserted into the channel means 72 to prevent rotation of the bolt means 86 when lock nut 92 is threadably moved thereon.
The installation procedure is as follows: The bolts 20 and 22 would be removed from the riser 10 and the board 24 would be removed therefrom and discarded. The adapter bracket 60 is then secured to the riser 10 by first slidably inserting a pair of bolt means 86 into the channel means 72 (FIGS. 2 and 5) and then inserting the two bolts downwardly through the openings 16 and 18 in plate 12. The bolt means 86 may be slidably moved in the channel means 72 to permit the bolt means 86 to be moved therein to register with the openings 16 and 18. The lock nuts 92 are then threadably mounted on the bolt means 86 and tightened to maintain the adapter bracket 60 on the riser 10. It should be noted that the bracket 60 can also be slidably moved with respect to the riser 10 by simply loosening the bolt means 86 to reposition the bracket 60 with respect thereto.
The plank 26 is then secured to the adapter bracket 60 by inserting the bolts 96 upwardly through certain of the openings 64, 66, 68 and 70. Bolts 96 are of the lock head type and are adapted to threadably receive flat weld nuts 98 thereon (FIG. 6).
The numeral 100 generally refers to a seat clamp including a base portion 102 having an opening 104 extending therethrough. An inverted U-shaped channel 106 is provided at one side of base portion 102 while an upstanding flange 108 is provided at the other side thereof. As seen in FIG. 6, bolt 96 is adapted to extend upwardly through opening 104 so that the bolt 96 may be threadably received by the nut 98. Channel 106 and flange 108 prevent nut 98 from rotating while bolt 96 is being threadably moved with respect to nut 98. As seen in FIG. 4, channel 106 is adapted to extend over the lips 38 or 40. Thus, the bolts 96 are extended upwardly through certain of the openings 64, 66, 68 and 70 and clamps 100 mounted thereon by the nuts 98 as previously described and as illustrated in FIG. 4. The tightening of the bolt 98 maintains the channel 106 over the lip 38 or 40 to maintain the plank on the adapter bracket. The configuration of the clamps 100 also permits selective slidable movement of the plank with respect to the adapter bracket 60 if desired. The opening 107 defined by channel 106 has a width slightly greater than the thickness of the lip 40 to provide compensation for slight variations in the width of the plank 26 or its position on bracket 60. The lower end 109 of channel 106 engages horizontal portion 36 to prevent slidable movement of the plank 26 with respect to the bracket 60. FIG. 3 illustrates the manner in which the planks 26 are secured to the various adapter brackets. For example, when the adapter bracket merely supports a single seat board, as illustrated at the left side of FIG. 3, a pair of bolts 96 are inserted through opposite corners of the bracket. When the bracket supports abutting ends of two planks, four of the bolts 96 are inserted through the bracket 60 as illustrated at the center portion of FIG. 3. When the mounting bracket 60 is being used to support foot boards, it is recommended that four bolts 96 be inserted through the bracket 60 to provide additional support. The four bolts in the mounting bracket reduces the twist in the plank when people would walk on the same.
The adapter bracket described herein permits aluminum planks to be substituted for the wooden seat and foot boards found in existing grandstands, bleachers, stadiums, etc. with a minimum amount of effort and expense. The adapter bracket 60 permits the planks 26 to be mounted on the existing metal seat support. The adapter plate described herein permits the metal planks 26 to be installed in the existing grandstands without the necessity of completely altering the existing risers which greatly reduces the time and expense normally associated with such a conversion operation. The fact that the bracket 60 is of extruded aluminum construction permits the bracket to be economically and efficiently manufactured. Thus it can be seen that the bracket accomplishes at least all of its stated objectives.
Some changes may be made in the construction and arrangement of our adapter bracket without departing from the real spirit and purpose of our invention, and it is our intention to cover by our claims, any modified forms of structure or use of mechanical equivalents which may be reasonably included within their scope.