Abstract: A precision woodworking saw having a variable speed drive mechanism which drives a saw blade carried on a reciprocating C arm. An electric motor has a drive shaft carrying a split drive pulley which drives a split driven pulley through a V-belt. The driven pulley is mounted on a driven shaft which reciprocates the C arm through an eccentric drive arm. The pulley sections of the split pulleys are movable toward and away from one another to vary the pitch of each pulley and its effective diameter. An adjustment knob can be turned to adjust both pulleys simultaneously to vary the speed ratio between the driven shaft and drive shaft as desired to control the speed at which the saw blade is driven.

Abstract: Apparatus for making a friction band comprising an arcuate band or strap made of a filament-reinforced plastic material. The plastic material is preferably a thermosetting epoxy which provides a matrix in which are embedded or encapsulated a plurality of long-strand continuous filaments of glass or the like. The band is lined with a friction lining, and is reinforced by a fibrous bleeder cloth between the band and the friction lining. A special fixture applies tension to the band assembly to hold the filaments in tension during the curing of the plastic material forming the matrix of the band.

Abstract: A friction band comprising an arcuate band or strap made of a filament-reinforced plastic material. The plastic material is preferably a thermosetting epoxy which provides a matrix in which are embedded or encapsulated a plurality of long-strand continuous filaments of glass or the like. The band is lined with a friction lining, and is reinforced by a fibrous bleeder cloth between the band and the friction lining. A special fixture applies tension to the band assembly to hold the filaments in tension during the curing of the plastic material forming the matrix of the band.

Abstract: A bearing material comprising copper and bismuth. Preferably there is from 12% to 18% by weight of bismuth and for some purposes there may be up to 35%. Depending upon special requirements, the bearing material may also have varying amounts of silver, antimony, zinc, phosphorous and nickel. Copper usually constitutes at least 50% by weight of the material.

Abstract: A double lock safety hook adapted to a single lock hook permitting a belt connection, such as a fall protection device, window washer's harness, and the like, to be retained within a hook throat. A snap keeper is engageable with the latch member to lock the latch member with the latch member abutting the hook nose so that accidental release of the belt connection is reduced. The snap keeper is mounted along and in juxtaposition to the shank of the single lock hook and is easily installed on equipment without the necessity of drilling holes in the hook body. A means for positioning the keeper along the shank is also provided for moving the keeper between its first and second positions.

Abstract: A shock absorber as designed for use in fall protection systems and may be incorporated integrally with either a belt or lanyard or may be used as a separate component in conjunction with conventional belts and lanyards. A shock absorbing mechanism of the invention utilizes a piercing member having smooth edges which pierce a piece of webbing material. When force is applied to opposite ends of the shock absorber, the piercing member stretches and breaks latitudinal fibers of the webbing material. This allows near complete retention of the strength of the longitudinal fibers as those fibers are not damaged during the absorbing operation.

Abstract: A collapsible stand for an upright vertical support is the subject of this invention. A U-shaped bracket holds a roller and is mounted on a telescoping stanchion by use of a set screw in the collar of the bracket. The stanchion is in turn supported by a stand, the base portion of which comprises three legs which are bolted to two horizontal plates positioned one above the other. The lower plate is larger than the upper plate and thereby determines the angle of disposition of the legs. The stand is collapsible by disengaging the legs from the plates and dismounting the bracket and roller assembly from the stanchion.

Abstract: A vehicle luggage rack is provided which includes the following components: a pair of longitudinally extending, parallel frame members, each having a first and a second end and being adapted to be fixed to a vehicle; a pair of longitudinally extending, parallel slide members, each of which is slidably mounted to and aligned with one of the longitudinal frame members adjacent the first end thereof; at least one longitudinally extending guide rail disposed parallel to the longitudinal members and being adapted to be fixed to the vehicle; a transverse rail extending between the longitudinal slide members to form a slide/transverse rail assembly, the transverse rail being slidably mounted to the guide rail so that the slide/transverse rail assembly is longitudinally slidable with respect to the longitudinal frame members and the guide rail; and apparatus for releasably fixing the position of the slide/transverse rail assembly with respect to the longitudinal frame members.

Abstract: A nylon fabric holster for hand guns having strap-like tabs secured together by hook and loop fasteners for holding the hand gun in the holster. The tabs may be separated by running the thumb between the hook and loop fasteners. However, the hammer spur associated with the hand gun is pressed against the inner surfaces of the tabs upon forcible withdrawal of the hand gun from the holster to prevent the tabs from separating. The tab construction thus prevents the hand gun from being forcibly removed from the holster when the tabs are secured together.

Abstract: The method of manufacturing, composition and product described herein utilize highly electrically resistive carbon black alone or with low resistivity carbon black to form a self-limiting electrically resistive semi-conductor which presents a positive temperature co-efficient of resistance, the methods which are described providing significantly shortened anneal times, manufacturing ease and reliability.

Abstract: The method of manufacturing, composition and product described herein utilize highly electrically resistive carbon black alone or with low resistivity carbon black to form a self-limiting electrically resistive semi-conductor which presents a positive temperature co-efficient of resistance, the methods which are described providing significantly shortened anneal times, manufacturing ease and reliability.

Abstract: A bullet resistant ballistic panel shirt-like carrier garment having interior front and rear pocket-like receptacles receiving flexible ballistic panels for providing protection against firearm projectiles to the upper torso of the wearer. The panels may be easily removed from the carrier garment, and the garment worn as a conventional shirt.

Abstract: A safety clamp slidably mounted on a vertical safety rail in proximity to a ladder is attached to a workman's belt by a pivotal actuating arm which shifts a wedge plate into clamping engagement with a safety carrier immediately under free fall conditions encountered if the workman falls from the ladder. The rail is spaced from the ladder mounting brackets by circular sleeves.

Abstract: The disc brake comprises a stack of reaction discs interspersed between a stack of friction discs all mounted within a housing. Brake actuation is provided by either hydraulically or manually rotating an actuating plate which, through a roller/ramp structure, moves a piston structure, causing braking engagement of the reaction discs and friction discs.

Abstract: A brake band is provided which is useful particularly in connection with transmissions. The band has welded at each free end thereof a bracket. The brackets are provided with recesses to receive the actuating struts which abut against one end of the recesses to cause closing of the band in a drum.

Abstract: A clutch of modular construction is provided. The clutch includes an actuating pack and a reaction pack, each of which is independently non-rotatably but axially slidably mountable on a shaft in adjacent operable relationship to each other.

Abstract: A method of manufacturing a friction band useful as either a brake band or a transmission band is provided. The band includes an arcuate metallic strip lined with a frictional strip. These strips are adhered together while in a flat, straight condition. The adhered strips are then formed into a generally arcuate shape, with the lining strip on the interior. Brackets are then provided on each free end of the metallic strip. The brackets are welded to the metallic strip. Sufficient area of the metallic strip is exposed in the area of the brackets to permit use of closely adjacent electrodes against the bracket and metallic strip.

Abstract: The wet disc brake comprises a stack of reaction plates interspersed between a stack of friction plates all mounted within a sealed housing. A pool of oil is provided in the bottom of the housing. The pool of oil is contacted by the rotating friction plates to coat such plates with oil. A piston is provided for pressure engagement of the discs in a braking action. Spring means are provided to apply light pressure against the piston and stack of brake discs to continually maintain these elements in non-braking engagement.

Abstract: A charcoal starter used with a conventional charcoal barbecue grill for outdoor cooking includes a tapered housing formed by interconnecting quadrilateral sidewalls that are arranged to rest vertically on the supporting surface of the charcoal grill. The sidewalls define open top and bottom portions with the area of the bottom opening being greater than the area of the top opening. A row of air inlet apertures and a pair of openings are provided in each of the sidewalls adjacent the lower end portions and the upper end portions thereof respectively. A handle member is detachably engageable with a pair of openings for lifting the housing into and out of position on the barbecue grill supporting surface. A grate having a plurality of apertures extending therethrough is positioned in the housing and is supported at an elevation above the sidewall air inlet apertures by support members secured to the grate.