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Document Title |
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4426178 |
Pipe cutting and threading device
An apparatus for cutting and threading pipe comprising a portable support frame formed by disengagable members, cutting and threading units mounted on the frame and a pipe clamp fixed to the frame...
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4404721 |
Pipe thread cutting and assembly machine
A thread cutting machine for pipes which comprises a machine base on which pipe holding chucks, a pipe rotation drive mechanism, a thread cutting mechanism and a threaded coupling holding chuck...
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4402120 |
Apparatus for rethreading tubular members
The present disclosure relates to methods and apparatus for rethreading damaged or incorrectly threaded tubular members such as tool joints, casing, and tubing for oil wells, which methods and...
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4375708 |
Non-indexing machining method and apparatus
Disclosed is a method and apparatus for machining a tubular workpiece to form an internally threaded coupling having a faced and chamfered end and a tapered counterbore. The method includes forming...
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4289006 |
Apparatus for producing threaded self-tapping stainless steel screws
A process for producing self-tapping screws from an austenitic 300 series stainless steel material wherein a blank of such material is chilled prior to a thread rolling operation so that the...
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4138754 |
Apparatus for producing drill screws
The method includes positioning a plurality of rotary milling saw stations about a path of travel for successsive screw blanks. Two longitudinally overlapping fluting cuts are made on each side of...
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4058864 |
Screw shank slotting mechanism
The present invention relates generally to improvements in machines designed to form longitudinally extending slots in the shanks of fasteners and more particularly in fasteners having radially...
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4025219 |
Pipe machining apparatus, particularly combination pipe threading and cutting machine
To simplify the apparatus and reduce handling, a pipe threading section and a pipe cutting section are axially aligned with respect to a pipe clamping apparatus, both located at the same side of...
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4001906 |
Machine for cutting slots in screw shanks
A machine for cutting slots in the shanks of screws includes a frame supporting a rotatable shaft with a disk attached thereto. A plurality of notches are formed in the periphery of the disk for...
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3992740 |
Screw blank receiving and orienting collet
A collet-type device for orienting a screw blank relative to wings previously formed on the shank of the blank so that subsequent operations, such as the formation of cutting edges and flutes, can...
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3968533 |
Fastener manufacturing apparatus
A threaded fastener of the self-tapping type is described having the conventional head, shank, and pilot end. The shank includes a helically wound thread member impregnated with a carbide or other,...
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3951564 |
Pipe or tube cutter for hand drills
A right angular gear drive attaches directly to an electric hand drill following removal of the drill chuck. A power-operated tube cutter and burr remover are driven directly by the output shaft of...
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3906566 |
Pneumatic biasing system for a screw blank cold heading machine
A machine for cold heading screw blanks includes a sliding punch which is driven against a fixed die. The punch and die are apertured to receive and enclose the screw blank as a punch pin operates...
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3815166 |
DIE HOLDER ASSEMBLY
The present invention relates generally to improvements in die holder assemblies, and more particularly to novel and practical improvements in the design of die holder assemblies which are employed...
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3748673 |
APPARATUS FOR PRODUCING ANCHOR BOLTS
A completely automatic system for converting plain metal rods into anchor bolts with a thread on one end and an approximate right angle bend on the other all complete with automatic feeding of the...
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3551928 |
METHOD OF CUTTING REAMING AND THREADING A ROTATING PIPE
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3550172 |
FASTENER MANUFACTURE
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3530920 |
SELF-LOCKING THREADED FASTENERS
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3523565 |
SELF LOCKING MALE THREADED FASTENER
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3517717 |
SELF-LOCKING SCREWS
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3499178 |
APPARATUS AND REAMER FOR WORKING PIPE
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3438299 |
EXTRUDING SCREW
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3423778 |
MEANS AND METHOD OF MAKING THREADED FASTENERS
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3422472 |
METHOD AND APPARATUS FOR MAKING DRILLING SCREW
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3359580 |
Method for producing shaped-head screws and tool for carrying out the method
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3316571 |
Portable power threader and vise
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3310821 |
Self-locking fastener machine
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3280412 |
Method and apparatus for slotting and pointing screws
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3277684 |
Means and method for shaft rolling
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3259928 |
Apparatus and method of longitudinally slotting threaded blanks
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3247532 |
Transfer mechanism
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3204266 |
Method and apparatus for forming cross holes through socket head screws
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3204265 |
Apparatus for forming fasteners with rectangular shanks
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3203041 |
Device for cutting and inserting locking elements into threaded fasteners
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3185468 |
Machine for inserting locking inserts in screws
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3179964 |
Automatic stud producing machine
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3165768 |
Double collapse mechanism and combination thereof with pipe cutting and threading machines
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3164851 |
Milling machine for drill point thread cutting screw
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3159857 |
Taper cutting bar attachment
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3159855 |
Plug inserting mechanism
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3159856 |
Apparatus for simultaneously thread rolling the shank and cutting threads on the point of a screw blank
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3129620 |
Floating tool for removing burrs from machined surfaces
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3128482 |
Method of supporting and rotating pipe for threading operation
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3085264 |
Screw shank slotting machine with clamp carrying work turret rotatably movable past a tangentially disposed helical saw
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2996736 |
Automatic taper thread forming and chamfer cutting machine
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2980928 |
Apparatus for applying locking plugs of plastic material to threaded articles
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2956293 |
Method of and apparatus for fabricating self-locking threaded fastening members
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2890468 |
Continuously rotating workpiece carrier with plural workholders and a tool carrier which oscillates synchronously with the workpiece carrier during the tool operation
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2886836 |
Machine for simultaneously operating on opposite ends of a workpiece
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2842988 |
Combination pipe threading die and reamer
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