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Class 269/238 - First class lever action type


Subclass of Class 269 - Work holders
Definition: Device wherein the fulcrum is intermediate the work engaging
No. of patents: 145
Last issue date: 09/04/2012


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NumberTitleIssue Date
4673174Angle clamping tool
An angle clamping tool is provided having a handle including a lockable clamping mechanism operably connected to two jaw arms. Each jaw arm includes an end portion and a medial portion. Secured to the end portion of each jaw arm is a clamping jaw comprisi...
06/16/1987
4660816Clamping device
A clamping device including a pair of counter-opposing angularly shaped beams each having a forward jaw portion and a rearward portion interconnected by a pair of connecting straps and a force exerting element. Each connecting strap is pivotally attached ...
04/28/1987
4658687Saw fence
A saw fence having an elongate fence member, a lock-back attached to an end of the fence member for engaging a side rail of a saw table, a base member attached to an opposite end of the fence member and adapted to engage a side rail of a saw table. The ba...
04/21/1987
4648160Closure device for high pressure packaging
A closure assembly useful as a means for sealing a pressurized package which includes clamping means shiftable between an open position to receive an open portion of the pressurized package and a closed position to substantially hermetically seal the open...
03/10/1987
4644834Apparatus for positioning of sheet metal plates arranged on a metal feed table of a metal shear
A feed lever and a lateral stop with individual guide members spaced apart and arranged in slot-shaped grooves of the metal feed table supported so that they can be raised and lowered on a support. The guide members are each equipped with a guide body pos...
02/24/1987
4621797Device for orienting an object on a flat surface
A device for orienting an object on a flat surface includes two levers which are pivotably coupled to the surface at pivot points between the ends of the levers. An actuating device is supported by and coupled between one end of the levers. The other ends...
11/11/1986
4616794Air comb arrangement for jet dyeing machine
Apparatus for the application of liquids to moving material, such as patterned application of dyes to moving textile material, including a liquid applicator positioned above the material path of travel for continuously discharging liquid in a row of plura...
10/14/1986
4615297Powder reinforcing machine
A powder reinforcing machine having a support for supporting a substrate which is to be reinforced with a fused powder laminate which is pressed thereagainst including a base, a mounting plate means on which the substrate is to be releasably clamped, the ...
10/07/1986
4609187Positioning apparatus
An apparatus for rapidly and accurately positioning and holding a very small elongated body, such as a stylus holder during manufacturing is disclosed. A pair of magnets or magnetized regions are utilized to position the stylus holder both rotationally an...
09/02/1986
4602704Fastening device for a bicycle brake block
Brake block fastening device for bicycle, made up of a body and a resilient element, which combined together form a cavity capable of receiving and retaining the brake block, the resilient element being kept close to the body by a shifting cam device, cap...
07/29/1986
4561479Mechanical wood splitter
A mechanical wood splitter comprises a weighted cutter which is raised on a support column by means of a winch and cable drive, and then allowed to drop, in order to split a log of wood positioned thereunder into segments, by uncoupling the winch drum fro...
12/31/1985
4544145Vise for small objects
A vise for holding small objects. It is particularly useful as a fly tying vise. It comprises a support bearing a housing having a rotatable central arbor carried in low friction bearings. The preferred form has a hub mounted at each end of the arbor. One...
10/01/1985
4540164Workpiece holder
A multipurpose workpiece holding apparatus comprises a pair of plates which can be connected together to form an angle block suitable for squaring workpieces. Alternative workpiece hold-down devices may be attached to the respective plates, and one of the...
09/10/1985
4538797Adjustable hydraulic die clamp
A hydraulically actuated die clamp is capable of adjustably engaging die assemblies having a wide range of thicknesses. The clamp includes a pivotally mounted clamp lever having a first end which is vertically displaced upward by use of a hydraulic piston...
09/03/1985
4537389Machine tool fixture
A fixture for holding and presenting a work piece to a tool. The fixture includes a pair of pivotally mounted arms each of which has a jaw for closing on and engaging the work piece. The arms are disposed between a pair of opposed plates. Rollers are moun...
08/27/1985
4536935Apparatus for moving, handling and mounting attachments onto a length of flexible material
The present invention relates to a method and apparatus for handling any desired length of flexible material such as tubing in any desired mass production operation or in any simple operation where various lengths of flexible material such as flexible tub...
08/27/1985
4519284Universal sheet metal holder
A punch press (20) having a worktable (40) for supporting a worksheet (21), a two axis positioning mechanism for positioning the worksheet under a punching head (34) and universal grippers (44, 46) supported on the worksheet positioning mechanism which ca...
05/28/1985
4502411Clamping mechanism for a powder reinforcing machine
An arrangement of articulated grippers for holding a substrate such as a shoe upper to be treated with a reinforcing substance onto a rotatable cube for pressing against a carrier belt of a reinforcing machine. The gripper comprise arms arranged on two si...
03/05/1985
4500078Chimney flue insertion apparatus
Multi-legged apparatus for frictionally engaging the interior of a chimney flue liner and inserting same in a chimney via a stanchion or multi-sectioned rods. Each L-shaped leg is containably and rotatably mounted to a center threaded rod. The legs are ex...
02/19/1985
4495689Tool for placement of O-rings and method
A tool is provided for positioning an "O" ring in a seating groove cut into the face of a section of flanged pipe. The tool includes a set of two adjustable tongs to grasp the "O" ring. The tongs are held in a fixed position by a pair of parallel facing p...
01/29/1985
4489926Workpiece supporting and clamping universal device
The workpiece supporting and clamping universal device of the invention comprises essentially an outer ring which can be secured to a base plate and into which are inserted a plurality of discs arranged concentrically in one another except for a disc whic...
12/25/1984
4487523Accessory clamp for abductor bar
The present invention provides a clamp which can be used to secure an accessory member to an abductor bar of an orthopedic-surgical table. The clamp includes a clamp block pivotally mounted on the clamp and oriented with respect to the clamp to clamp an o...
12/11/1984
4484775Adjustable smooth action linkage gripper mechanism
A rotatable lever and an initially transversely disposed adjustable linkage echanism for attachment in predetermined relation to at least one movable work-performing arm and operable such that upon rotation of the lever and linkage mechanism responsive to ...
11/27/1984
4479639Tool for positioning electric outlet boxes
A tool for holding and positioning an electrical junction box includes a pair of handles pivotally connected in a lever arrangement so that squeezing together the grip portions of the handles urges apart the jaw portions of the handles. A spring biases th...
10/30/1984
4470586Machine clamp rockable in T slot
An adjustable clamp for clamping a work piece in a T slot of the bed plate of a machine tool. The clamp comprises a one piece rocker body with a work engaging portion at one end to hold down a work piece. The lower center of the clamp has a fulcrum portio...
09/11/1984
4462153Terminating tool for cross-connect connectors for telephone lines
A termination tool for holding cross-connect connectors, as used in telecommunications systems, while inserting conductors into the back edge of the connector, is adapted to be releasably mounted on the support member on to which the connectors are eventu...
07/31/1984
4445676Fluid-operated bell crank clamping device with elastic spring link and releasable clamping arm
A fluid-operated clamping device comprises a support forming a cylinder in which a piston is reciprocatable. A piston rod fixed to piston has a free end projecting beyond the cylinder. A bell crank is pivotally mounted on a portion of the support extendin...
05/01/1984
4442581Button puncher or crimper
An improved button puncher or crimper which is capable of vastly improving the efficiency and ease with which adjacent sheets of metal decking are button punched, pinched or pressed together in order to be permanently joined....
04/17/1984
4438984Drill steel guiding and centralizing mechanism
A drill steel guiding and centralizing mechanism comprising a body (14) and a first and second jaw (1 and 6) connected to other ends of two-armed angled levers (2,3 and 7,8). The angled levers are turnably connected to the body (14) by joints (4 and 9) at...
03/27/1984
4434978Vise
The present invention relates to a vise for securely supporting a workpiece relative to a fixed support. The vise includes a base member which is secured relative to the fixed support. A clamp assembly is rotatably mounted with respect to the base member ...
03/06/1984
4420912Apparatus for holding workpieces during honing work
An apparatus for holding of workpieces with at least one vertical bore, particularly for holding a connecting rod, for a honing operation. The apparatus includes two workpiece receiving plates between which the workpiece is insertable with horizontal and ...
12/20/1983
4403897Self-centering clamp for down-hole tubulars
A self-centering clamp for drilling tubulars includes first and second transverse guide rods. Two opposed clamping jaws are guided along the first guide rod. These jaws are positioned by two opposed rocker arms, each of which is mounted to a cross brace w...
09/13/1983
4399989Safe grip slicer for bagels, rolls, muffins and the like
A fixture having a channel for accepting a user inserted knife blade, a first, floating plate for holding in place one surface of the bagel, roll or muffin to be sliced, and a second, rigid plate for bearing against the opposite surface of the bagel, roll...
08/23/1983
4396185Clamping apparatus for machine tools
A clamping apparatus (3) for holding a workpiece (W) between an upper punching tool (19) and a lower punching tool (21) in a machine (1). A frame (33) attaches the clamping apparatus (3) to the machine (1). The clamping apparatus (3) comprises an upper cl...
08/02/1983
4383825Holding device for the firing of ceramics and the like
A holding device for supporting a dental workpiece and the like is shown as having a main body attachable as to a cooperating base or sagger tray; the main body carries a fixed extending first arm; a lever is pivotally fixed to the main body and carries a...
05/17/1983
4382591Clamping means for trough of pipe handling apparatus
Clamps are provided for clamping a length of pipe to the trough of a pipe handling apparatus. The clamps comprise two arms pivotally coupled to the trough on opposite sides thereof. The arms are movable to open and closed positions by two piston rods pivo...
05/10/1983
4369956Self-centering fixture
A self-centering fixture makes use of an air actuated motor which is drivingly rotated in one direction. The fixture has a pair of levers pivoted to a base. As the motor is actuated, a cam positioned between the longer arms of each lever rotates and acts ...
01/25/1983
4367776Machine for the manufacture of reinforcing bodies for precast concrete parts
A machine for the manufacture of reinforcing bodies for concrete pipes and the like, which comprises longitudinal bars and wire wound about the longitudinal bars. Two coaxial discs are provided. A main disc, fixedly mounted on a base frame, carries radial...
01/11/1983
4366606Self-centering clamp for down-hole tubulars
An automatically self-centering clamp for down-hole tubulars includes a frame which defines guides for two opposed clamping jaws. Each clamping jaw is pivotably attached to a rocker arm, and the two rocker arms are in turn pivotably attached to a tension ...
01/04/1983
4361316Plate stack clamping apparatus for storage battery manufacture
The plate stacks are positioned for further processing in a clamping arrangement with clamping elements between stacks. Each element is displaceable by an amount of play X with respect to its neighboring element....
11/30/1982
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