Title:
Observation device
United States Patent 2009340


Abstract:
This'invention' relates to an observation device and has for its object to provide, in a manner as hereinafter set forth; a device of the class referred;to 'for reproducing visually the exact condition 'of a person's arch to enable chiropodists-'and foot specialists, as well as a patient to...



Inventors:
Edwards, Bert E.
Application Number:
US75216534A
Publication Date:
07/23/1935
Filing Date:
11/08/1934
Assignee:
Edwards, Bert E.
Primary Class:
Other Classes:
359/860
International Classes:
A43D1/02
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Description:

This'invention' relates to an observation device and has for its object to provide, in a manner as hereinafter set forth; a device of the class referred;to 'for reproducing visually the exact condition 'of a person's arch to enable chiropodists-'and foot specialists, as well as a patient to observe study and realize a weakness or falling arch- of the foot when- the latter is under pressure. :Although the device is designed, primarily for use by-chiropodists and foot specialists it is to be understood that it may be employed: in any connection for which it is found applicable.' A further object of the' invention is to provide,in a manner as hereinafter set forth,'a device of the class referred to so constructed and arranged: to visually reproduce the' condition of the arch"bf d person's foot at a point to be conveniently 'observed, -studied, and examined by a chiropodist or foot specialist.

-t Fufthei objects of the invention are to provide;'-in a manner as 'hereinafter set forth, a device of the' class referred-to, which is simple in its construction and arrangement, strong, durable; 'compact,- thoroughly efficient for the purpose intended thereby; readily repaired when occasion- requires and comparatively 'inexpensive to manufacture.

TO th6 above ends 'essentially,'and- to others which may hereinafter appear, the invention consists of such-parts,'and such combination of parts which fall within the scope of the invention as claimed.

In the drawing: Figure 1 is a perspective view of the device, Figures 2 and 3 are transverse and longitudinal sections of the device on line 2-2 and 3-3 respectively, Figure 1, and Figure 4 is a top plan view of the device showing the image reproduced thereby.

The device comprises a rectangular open top housing 5 formed of a bottom 6, a pair of side walls 7, 8 and a pair of end walls 9, 10. The side and end walls of the housing are detachably connected together in abutting relation. Each end wall is provided on its inner face, in proximity to its top edge, with a groove I I of a length to extend from one side edge to the other side edge thereof. Each side wall is formed on its inner face, in proximity to its top edge, with a pair of spaced endwise aligning grooves 12, 13 closed at their inner and opening at their outer ends. The grooves 12, 13 extend from the end edges of a side wall to a point spaced from each side of the vertical median of such wall. Arranged within and extending across the upper portion of housing 5, at the transverse center of the latter, is a trough '14 formed of a pair of end walls 15,. 16, a pair. of side walls S17, 18,-and' abottdm -19 secured against the-lower-edges of and flush with the said side and end walls. The end walls I5, 16 are of greater thick-' ness and of materiallyless length than side walls 17, '18. These latter are secured to the sideedges'and-flush with the 'top edges and'bottom' edges of the walls 15, 16. The top edges of the' walls 1:5, 16 are disposed in alignment; With the'!top walls-bf the grooves 12, 13. Th e top edgesof the' walls 1 7,i 1 ialign with the bottom. edges of the grooves : 11 . By this. arrangement 'the: trough l 14 has 'its; top: arranged below the" top -.5 edges of the walls 9, 1 O.1:'The walls: 15,' 1 ,: 17 ,18 and bottom-19 are formed of a material which will prevent the ~passageof light, therethrough.The wall ,I 0,of the housing .5 is formed-with an-, opening 20 which, aligns, with a cutout 21 provided in the wall. 16 of the trough 14. The opening 20 and cutout 21 -coact to provide a passage for circuit connections 22, 23 into the trough 14.' Mounted in the opposing grooves 12 and one.. of the' grooves I l, as- well. as seating upon the wall 18, is a transparent panel' 25 'constituting a foot' support. Mounted in the opposing grooves 13 and- the other-groove I,' as -well as-seating upon -the wall t ' i7s a transparent panel- 26 con-stituting a window for-viewing the'shadowgraph'- 0 produced by the device. The panels 25, 26 are to abut the closed inner ends of the grooves 12, 13 respectively. When the walls 7, 8 are secured to the walls 9,10, the panels 25, 26 are maintained in the position shown in Figure 1. The panels are disposed below the top edge of the walls of housing 5.

Detachably secured upon the top edges of the walls 15, 16 by the holdfast means 27 is an oblong member 28 having its ends abutting the inner face of the walls 9, 10 and its upper face flush with the top edges of the latter. The side marginal portion of the lower face of member 28 seats upon the inner marginal portions of the upper faces of the panels 25, 26. The side edges of member 28 are flush with the side edges of the walls 15, 16 and the outer side faces of the walls 17, 18. The member 28 is a closure for the top of trough 14 and forms, in connection with the latter and inner edges of the panels 25, 26, a chamber 29 for an illuminating device 30 in the form of an electrical lamp. The member 28 further constitutes a suspension respectively for a switch 31 which depends therefrom into chamber 29 and an angle shaped reflector 32 which also depends therefrom into the chamber 29. The member 28 is formed of opaque material.

Within the housing 5 is arranged a pair of oppositely disposed spaced mirrors 33, 34 which extend from the walls 7, 8 respectively to the bottom 6. Each mirror is set at an angle of 450 and extends transversely of housing 5. The upper ends of the mirrors 33, 34 are spaced a substantial distance below the panels 25, 26 respectively. The lower ends of the mirrors are spaced from each other. The mirrors 33, 34 are set in grooves in walls 9, 10 as illustrated in 34'.

The reflector 32 includes a horizontal part 35 1and a vertical part 36 which depends from one side of part 35 and opposes the inner face of wall 17. Holdfast means 37 are employed for anchoring part 35 directly against the lower face of member 28. Secured to the part 35 of reflector 32 at that end of the latter adjacent switch 31 is a depending angle-shaped supporting bracket 38 for the lamp 30. The conductor or circuit connection 22 has interposed therein the switch 31. The conductor or circuit connection 23 leads directly to lamp 30.

The light rays from the lamp 30 are directed to the inner end edge of the panel 25 for the purpose of illuminating the bottom of the foot of a person to result in the device producing a shadowgraph of said foot bottom. The light rays also illuminate the chamber 29. The walls of the compartment 39 are stained black. The compartment 39 receives no direct light from compartment 29 and depends upon the light rays which travel through the panel 25 to reproduce the image of the bottom of the foot in mirror 33 and reflect it into mirror 34 for observation.

When the device is used the patient positions one of his feet under pressure upon the panel 25 and the image of the bottom of the foot appears in mirror 33. From the latter the image is reflected in mirror 34 and viewed therein through the window provided by the panel 26.

45 While the preferred embodiment of the invention has been shown, it is to be understood that various changes in the size, shape, material and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the appended claims.

What I claim is: 1. An observation device comprising an open top housing, a pair of spaced inner edgewise aligning transparent panels supported in the sides and ends of the housing adjacent the top edge of the latter, and one constituting a foot support and the other a window for viewing an image, said panels being disposed in a plane for closing the major portion of the open top of the housing, a pair of oppositely upstanding inclined mirrors positioned within and against the ends, sides and bottom of the housing, directly below and in spaced relation to said panels for reflecting an image received by one to the other, a closed opaque hollow oblong structure providing a chamber interposed between central upper portions of the inner faces of the sides of the housing, said panels having their inner ends interposed between the upper ends of the sides and the top of said structure, the latter closing the remaining portion of the open top of said structure, a reflector within said chamber and including a vertical part having a non-reflecting surface opposing the inner end edge of that panel constituting the window and a reflecting surface for directing light rays to the inner end edge of the other of said panels, and a controllable electrical illuminating means controllable from one of the walls of said structure and including a lamp suspended in said chamber. 2. The invention, as set forth in claim 1, having the inner end edges of said panels flush with the inner faces of the sides of said structure.

3. The invention, as set forth in claim 1, having the controllable illuminating means includ- 36 ing a switch carried by the top of said structure and a pair of circuit conductors extending into said chamber, one of said conductors having said switch interposed in that portion thereof arranged in said chamber, and one end of said structure and one side of said housing having coacting means to provide a passage for said conductors.

4. The invention, as set forth in claim 1, having the lower ends of the mirrors spaced from each other, said structure aligning with the space between said mirrors and having its top flush with the top edges of the side walls of the housing.

BERT E. EDWARDS.