Abstract: A sintered pulley hub construction for mounting on a bottom wall of a sheet metal pulley cup. A pair of tubular members is pressure formed in a green compact state from a metal powder mixture. One of the members has a cylindrical body which terminates at one end in an outwardly extending annular flange which forms a hub pulling flange. The other member has an interior annular cavity formed in one end and a radially outwardly extending annular flange formed on the other end. The cylindrical body of the one member is telescopically received within the annular cavity of the other member. The members are joined by sintering to form an integral homogeneous body. The outer surface of the other member has a cylindrical portion extending axially between the radial end flange and an annular shoulder for receiving an axially extending flange of a pulley cup, with the shoulder providing a zone for welding the pulley cup to the hub.

Abstract: A method of treating bituminous paving mixtures to reduce the amount of aggregate fines discharged into the atmosphere. Aggregate is fed into a charging end of an inclined drum mixer and is heated by a low-velocity gas stream to form steam from the moisture contained by the aggregate within a steam zone. Liquified asphalt is supplied to the aggregate in an asphalt injection zone as it moves downstream in the drum from the steam zone and coats the aggregate as it is tumbled and moved along the drum in a coating zone toward a discharge end. In the gas stream, the ratio of airflow into the drum mixer is accurately controlled with respect to the rate of fuel flow to a burner located at the charging end of the mixer, to consume during burner combustion all oxygen supplied by the airflow to produce a heated gas stream, thereby eliminating free oxygen from the interior of the drum mixer.

Abstract: An instructional device to assist a golfer in developing a golf swing. A base member has one or more transversely extending projections mounted on its top surface, each of which has a rounded top edge to provide a pivot surface for a top board member. The top board is formed with a plurality of transversely extending grooves or a rounded projection on its bottom surface, operatively engageable with the base projections for pivotally or rockingly mounting the top board member on the base. A golfer assumes a usual golf stance on the top board. The weight shift of the golfer upon addressing a ball and during the backswing and downswing, causes the top board to pivot on the projections in a predetermined manner when done correctly to assist the golfer in perfecting the correct golf swing.

Abstract: A depository construction for receiving deposits at unattended banking equipment units in deposit-containing envelopes, and for issuing receipts for such deposits to bank customers. The customer activates the depository mechanism to initiate a deposit procedure by pressing a button, using a key or inserting a customer-identifying card at a banking unit. Activation of the mechanism opens an entry gate for a horizontal deposit entry slot to permit a deposit-containing envelope to be inserted into the slot, and energizes the drive mechanism of an envelope belt conveyor to transport the envelope through the mechanism. As the trailing end of the envelope passes an entry sensor, the entry gate is closed and a conveyor exit gate is opened. As the leading end of the envelope arrives at the exit end of the conveyor, an exit sensor energizes a printer beyond the exit end of the conveyor which stamps deposit data on the envelope.

Abstract: A sonar device for controlling movement of an object such as a transport drawer for delivery of material or things under security conditions to a customer. Examples of such transport drawers are bank drive-up window deal drawers or similar deal-type drawers for secure delivery and sale of pharmaceuticals fast foods, library books and packages of valuable things. The sonar device detects when a predetermined fixed distance has been established or occurs between a moving object such as a banking equipment deal drawer, and an object or body such as a vehicle being served by or using the drawer; and signals that the fixed distance exists, which signal may trigger stopping of a motor drive for the drawer to avoid collision of the drawer with the vehicle.

Abstract: A method of making a multi-V-grooved sheet metal pulley from a flat sheet metal strip. The strip is passed through forming rolls which preform a plurality of generally V-shaped, transversely spaced, longitudinally extending grooves in a portion of the strip, and a generally flat hub wall flange in a transversely adjacent second portion of the strip. The hub wall flange portion of the strip then is notched to preshape the flange prior to circular forming the bottom hub wall of a pulley therefrom. The preformed grooved and notched strip then is severed into individual strips, each of which provides the material for a cup-shaped sheet metal pulley. Each strip then is passed between a pair of wrapping rolls which form the strip into a circular, preferably cylindrical configuration with the strip ends located adjacent to each other. The adjacent ends of the strip then are abutted and welded together, forming a cup-shaped pulley.

Abstract: An integral hole saw and arbor construction having a one-piece stem formed by a shank, an intermediate drive plate and a reduced neck at the lower end. The reduced neck forms an annular shoulder with the bottom surface of the drive plate. An annular end cap formed with a central hole and an outer annular shoulder, is mounted concentrically on the stem in abutting engagement with the bottom surface and annular shoulder of the drive plate, with the reduced neck extending into the central hole of the end cap. An annular weld extends between the drive plate and end cap to firmly secure and integrally join the end cap on the stem. A cylindrical saw blade is seated in the annular shoulder of the end cap and is firmly secured and integrally joined to the end cap by a second annular weld. A setscrew is threadably mounted on the drive plate for adjustably clamping a pilot drill in an axial bore which is formed in and which extends throughout the stem.

Abstract: A pair of transparent prismatic-shaped blocks are mounted within a protective housing which extends through an opening in an armored vehicle for safely viewing an exterior field of view from within the protected vehicle. Each of the blocks has a reflective surface and a viewing surface and are separated from each other by a void. The void is filled with an optical adhesive which remains soft and pliable and which bonds the pair of blocks together in this spaced relationship. The adhesive provides a shock isolation effect between the transparent block which is exposed to shock from enemy gunfire, etc., and the other block located within the vehicle. The cushioned adhesive-filled void reduces transmission of the shock waves between the blocks and prevents foreign objects from entering the void and distorting the optical viewing system.

Abstract: An enclosure or housing for removal of sawdust generated by a saw blade rotating on a shaft located below a work table. A portion of the rotating saw blade projects above the top surface of the work table to engage and saw material being moved on the work table. The saw portion below the work table is located in the chamber formed by the enclosure and the chamber is connected with a source of suction. The enclosure straddles the saw rotor shaft, and its side walls have U-shaped upwardly opening slots through which the rotor shaft extends, located at each side of the saw blade. The slots and one side wall top edge have air seals between the saw blade and said slots and top edge. The saw blade is located parallel with and close to the unsealed enclosure side wall and is spaced a greater distance from the opposite sealed side wall. A top guard having a cover chamber may enclose the portion of the saw blade projecting above the work table. When used, the cover chamber also is connected with the source of suction.

Abstract: A portable pitching mound with a body having a generally convex upper surface and a flat lower surface defined by an arcuate outer edge portion terminating in a chord-like front edge. The upper surface is formed with a flat rear surface area and a parallel flat front surface area offset downwardly of the rear surface area. The front and rear parallel flat surface areas extend, respectively, forwardly and rearwardly from an upstanding shoulder which is parallel with the chord-like front mound edge. The upstanding shoulder is located midway between the chord-like front edge and the arcuate outer edge portion at the rear of the mound.

Abstract: A quick release centrifugal clutch construction having a driven member rotatably mounted on a shaft and a drive member rotatable with the shaft and axially engageable with the driven member. The drive member includes a rotor mounted on the shaft for rotation with the shaft. A cartridge is axially slidably mounted on the shaft and has a frictional coupling surface for engagement with the driven member, and has a preloaded disc spring mounted thereon. A drive block also is axially slidably mounted on the rotor and is adapted to engage the cartridge to further load the disc spring and to drivingly connect the cartridge with the driven member. A plurality of individual pairs of links are mounted circumferentially spaced on the rotor and are movable in radial directions between retracted and extended positions. The inner ends of each of the link pairs are pivotally joined by a pivot pin with the outer link ends being pivotally connected to the drive block and rotor member respectively.

Abstract: A pneumatic tube system for conducting banking transactions with a non-captive carrier traveling between a bank teller terminal in a two-tube carrier conveyor connected with a remote customer terminal with visual communication between the teller and the customer. The terminals and tube structure and their components are combined, interrelated and cooperatively arranged with simple and inexpensive construction to provide quiet and reliable operation. Prior complex carrier delivery and dispatch holding and release devices and blower operating timers and controls are eliminated. The operation of a blower located at the customer terminal, which supplies air for pressure or vacuum movement of the carrier in the two-tube system, is controlled by carrier arrival at or dispatch from either terminal. Noise emanating from air currents in the system is reduced by mufflers located at the terminals in the tube system. The carrier moves through one of the mufflers during travel.

Abstract: A one-piece sintered pulley hub construction formed of powder metal is provided with a pair of radially outwardly extending hub pulling flanges. The hub has a generally tubular-shaped body with front and rear end faces and a cylindrical bore extending axially therebetween. The pulling flanges are formed integrally with the tubular body and extend radially outwardly from adjacent the front end of the tubular body in diametrically opposite directions, with the front surfaces of the flanges preferably lying in the same plane with the front end face of the tubular body. The flanges provide lugs for gripping by a hub pulling device and they enable the hub to be formed in one piece by a powder metal sintering process eliminating costly machining procedures.

Abstract: A method of making a dynamically balanced cup-shaped blank for use in the production of a V-grooved pulley from a flat sheet metal disc by flow forming the metal with an improved metal spinning roller construction. The disc is mounted on rotating die means between headstock and tailstock die forming assemblies of a spinning machine. A first spinning roller pressure shear forms and thins an intermediate annular portion of the disc along a conical surface of the headstock die to form a conical wall of the cup-shaped blank, with an unworked outer annular portion of the disc extending outwardly of the conical wall. A plurality of the improved rollers are moved axially along and parallel with the headstock die means in a single pass. Outer curved front end surfaces of the rollers lay the outer unworked annular portion of the disc along a cylindrical surface of the headstock die form without materially reducing the metal thickness to rough form a cylindrical wall of the cup-shaped blank.

Abstract: A method of making a dynamically balanced integral clutch housing and bearing assembly from a flat sheet metal disc by a roller spinning tool. A bearing and the metal disc is mounted on rotating die means between headstock and tailstock die form assemblies of a spinning machine. The spinning tool presses the disc against an end of the bearing to provide a bottom web wall of a cup-shaped bearing housing. The spinning tool then moves in a series of passes along the bearing outer race and along the headstock die form thereby rolling, forming and ironing rotating outer metal portions of the disc against the bearing and die, and forming an annular circumferential flange wall of the bearing housing which terminates in an annular shoulder. The bearing is telescopically mounted and retained within the bearing housing by the side and web walls and retaining shoulder.

Abstract: A sintered pulley hub construction for mounting on a bottom wall of a sheet metal pulley cup. A pair of tubular members is pressure formed in a green compact state from a metal powder mixture. One of the members has a cylindrical body which terminates at one end in an outwardly extending annular flange which forms a hub pulling flange. The other member has an interior annular cavity formed in one end and a radially outwardly extending annular flange formed on the other end. The cylindrical body of the one member is telescopically received within the annular cavity of the other member. The members are joined by sintering to form an integral homogeneous body. The outer surface of the other member has a cylindrical portion extending axially between the radial end flange and an annular shoulder for receiving an axially extending flange of a pulley cup, with the shoulder providing a zone for welding the pulley cup to the hub.

Abstract: A one-piece, sheet metal multi V-grooved pulley has a circular hub wall integrally connected with a cylindrical side wall, which side wall terminates in an open end opposite of the hub wall. A series of outwardly opening V-shaped grooves is formed by pairs of V-shaped flange walls in the cylindrical side wall. The pairs of flange walls decrease in metal thickness progressively from the hub wall toward the open end.The V-grooved pulley is made by forming a cup-shaped stage blank having a bottom hub flange wall and a connected outer cylindrical wall terminating in an open end. The stage blank is formed by roller spinning an outer annular portion of a sheet metal disc along a stepped cylindrical surface of a headstock die. A series of integrally connected cylindrical surfaces is formed along the interior of the cylindrical wall of the stage blank by the roller spinning operation.

Abstract: A reciprocating carrier-type photocopy machine having a photoelectric sensor for controlling a copy paper cut-off knife, to conform automatically the size of the copy paper to the size of the original document. A light emitter and photoelectric sensor are mounted beneath a glass platen over which a carrier, which contains the original document, moves for exposing the document to the reproducing mechanism contained beneath. An elongated rectangular mirror is mounted on the bottom surface of the carrier lid for reflecting the emitted light back to the sensor. The original document, when placed in the carrier, blocks the emitted light from being reflected from the mirror to the sensor until the trailing edge of the document passes the emitted light. The reflected light, upon passage of the document, then actuates the photoelectric sensor, which in turn actuates a solenoid of a copy paper cut-off knife to sever the copy paper from its supply roll.

Abstract: A sheet metal pull tab for easy opening cans of the full panel pull-out type which has a special and coordinated configuration, shape and contour of pull-ring, keyhole-shaped slot, nose and nose-forming walls which serve readily without tab failure to rupture the score line formed in a can end for removal of an end panel defined by the score line. The new pull tab structure imparts unusual overall strength to the pull tab that enables the pull tab either to provide greater strength when formed from the same gauge sheet metal or to provide the same strength when formed from lighter gauge sheet metal as compared with similar prior sheet metal pull tabs having the same outer contour; and also to provide such a pull tab structure which reduces the amount of metal, disregarding gauge, that is required to form the strong pull tab structure.

Abstract: A method of making a dynamically balanced V-grooved sheet metal pulley from a flat sheet metal disc by roller spinning and splitting tools. The disc is provided with a central hole for mounting the disc on rotating die means between first headstock and tailstock die form assemblies of a spinning machine. The spinning tool presses the disc against an end of a headstock die form and moves generally radially outwardly pressing a portion of the die against the end of the die to provide a circular hub wall. The spinning tool then moves in a series of passes along the headstock die form thereby rolling, forming and ironing the rotating outer metal portions of the disc against the die and forming an axially extending cylindrical side wall terminating in a radially outwardly extending annular flange of a cup-shaped stage blank. The flange then is trimmed to a predetermined length and to form a peripheral axially extending edge on the flange.