Abstract: A hand rail assembly (10, 110) including a graspable portion (14, 114) connected at spaced portions, such as ends (15, 18), to a support wall (11) with at least one of the connections (16, 116) being breakable by inadvertent application of high force to the hand rail assembly to avoid substantial damage to the hand rail assembly by such forces. The breakable connection may include a shear pin (30) or releasable ring (143) permitting the breakable connection to be broken by such high forces but assuring the connection to be maintained by forces normally applied to the hand rail assembly in normal use. The breakable connection may be provided at one or both ends of the graspable portion. In the illustrated embodiment, the breakable connection is provided at one end with the other end being provided with a swingable connection. The connections may include brackets (28, 35) or may be defined by distal end portions (140, 148) of the studs (121, 131) connected directly to the wall portion (11).

Abstract: Structure for mounting an ice maker in an insulated cabinet having an outer rigid metal shell. The mounting structure includes a support fixedly secured to the shell and defining a mounting portion disposed within a refrigerated chamber of the cabinet. The ice making apparatus is mounted to the support to be disposed within the refrigerated chamber. The shell includes turned flange portions to which the support is removably secured in one embodiment of the invention. The support may be defined by a plurality of rails having securing portions secured to the shell. Connecting portions may be arranged to extend from the securing portions to dispose the mounting portion of the support within the refrigerated chamber. The ice making apparatus may include a plurality of components such as an ice slab forming component and an ice slab dividing component. The support is arranged to mount the components in opposite association within the refrigerated chamber.

Abstract: Investment casting mold forming apparatus including a vertically extending housing (10) having a top (22), a bottom (28) and an access opening (20) intermediate the top and the bottom, a diffuser (26) within the housing below the opening and above the bottom, a pressure fluid inlet (32) in the housing between the bottom and the diffuser for providing fluid so that a fluidized bed and particulate material may be generated above the diffuser, and a distributor (50,52,60) introducing particulate material into the housing at its top and above a fluidized bed therein such that the particulate material so introduced may descend, by gravity, within the housing towards the fluidized bed.

Abstract: A refuse compactor having a selector switch for causing the ram to be automatically retained in the compacting position when desired. The control of the compactor is also arranged to provide an automatic movement of the ram to the compacting position and then to a retracted position with the selector switch permitting such automatic cycling, when desired. A signal device is associated with the control to provide an indication of the retention of the ram in the compacting position when the compactor is so arranged. The control may include centrifugal switches and a selector switch for selectively controlling energization of individual forward and reverse start windings of the drive motor for selectively moving the ram.

Abstract: PCT No. PCT/US79/00845 Sec. 371 Date Oct. 15, 1979 Sec. 102(e) Date Oct. 15, 1979 PCT Filed Oct. 15, 1979A fire extinguishing system including a vessel (10) for receipt of a fire extinguishing material and having an outlet (12) closed by a flow control mechanism (14). A linkage (20,30) provides for suitable operation or actuation of the flow control mechanism (14). A double rod ended cylinder 36 is employed for operating the linkage in response to a remotely generated pressure signal or in response to manual actuation by a manual actuator (66) coupled to one of the rod ends (38).

Abstract: In a wiper assembly (10) for a windshield, a window, a headlight, or the like, including a flexor (20) for a resilient wiping element (21) having laterally extending tabs (45,46) and lateral indents (55,56) defined on the flexor by the lateral edges (33,34) thereof. A plurality of such flexors are cut from a sheet of material without substantial waste by orienting the flexors to be cut in abutting side-by-side relationship such that the tabs of one flexor are cut from laterally aligned indents of an adjacent flexor on the sheet. The pair of tabs (45,46) have axially spaced external shoulders (49,52) located near one end (30) of the flexor with one shoulder on each lateral side of the flexor and the pair of indents (55,56) have axially spaced internal shoulders (59,62) located near the other end (31) one on each lateral side of the flexor such that adjacent flexors are oriented 180.degree. relative to each other when they are to be cut apart from the sheet.

Abstract: PCT No. PCT/US79/00501 SEC. 371 Date July 16, 1979 SEC. 102(e) Date July 16, 1979 PCT Filed July 16, 1979A mobile apparatus (20) has a hydraulically operated pivoted boom (22) and a hydraulically operated pivoted arm (24) and on the free end of the arm is a hydraulically operated mechanism (26) for handling heavy loads in ways that cause torsional and bending distortion of the boom (22) and the arm (24). Coplanar steel hydraulic conduits (42a and 42b, and 45a and b to 50a and b) are slidably carried in conduit support blocks (57); and those blocks in turn are mounted on brackets (53) fixed to the arm (24) or brackets (69) fixed to the boom (22) by carrying means (56 or 72) which allows directionally unrestricted limited movement of the blocks (57) in a plane parallel to that of the conduit centers, and which also allows axial movement along lines perpendicular to that plane.

Abstract: A dragline is constructed in the manufacturing plant with a segmented guide rail shimmed and secured to the plates of a tub concentric with the pintle for the deck. The guide rail is then machined so that a rolling surface is created on the rail that is within .+-.0.002 inches of a planar surface. Tub gear segments have mounting portions accurately machined and accurately drilled as are tub rail segments and deck rail segments accurately machined. The dragline is then disassembled, shipped to the site and re-erected with the guide rail shimmed and installed on the plates of the tub so that the rolling surface is within .+-.0.002 inches of a plane. The deck is mounted on the pintle and supported on columns to space the deck rail girder from the tub rail girder. A tram or boom is mounted on the deck pintle and has a machine tool carriage riding on the guide rail so that a milling head on the carriage can mill the upper and lower rail girders to within .+-.0.0025 inches of planar.

Abstract: PCT No. PCT/US79/00450 Sec. 371 Date June 26, 1979 Sec. 102(e) Date June 26, 1979 PCT Filed June 26, 1979 PCT Pub. No. WO81/00096 PCT Pub. Date Jan. 22, 1981A braking apparatus (36) is provided for a supply spool (30) whereby material (12) drawn from the spool (30) will have a relatively uniform tension. The braking apparatus (36) includes a follower roller (40) in contact with the material (12) on the spool (30) and a brake portion (38) in adjustably controlled braking contact with a brake rotor (102) mounted for rotation with the spool (30). The follower roller (40) follows the decrease in the diametral amount of material on the spool and simultaneously moves the brake portion (38) toward the center of the brake rotor (102) wherein a uniform braking force on the spool (30) is maintained.

Abstract: A universal command signal producing apparatus adapted for use in an electrically operated vehicle. The apparatus includes a rotatable electrical element for use in controlling a drive function of the vehicle, such as a speed control function or a braking function. The apparatus is arranged to act as a transducer between a foot pedal, adapted to be actuated by the user of the vehicle, and the propulsion control to selectively control the electric drive motor of the vehicle or the braking system thereof. The transducer apparatus may include a sprocket associated with the rotatable electrical control device and driven by a chain forming a part of the transducer. The chain may be mounted on a suitable carrier which is adapted to be moved by movement of the foot pedal.

Abstract: PCT No. PCT/US79/00724 Sec. 371 Date Sept. 14, 1979 Sec. 102(e) Date Sept. 14, 1979 PCT Filed Sept. 14, 1979A seal assembly wherein a resilient seal (84) is disposed within an open annular recess (82) defined in a first member (56). A second member is disposed adjacent to and is deflectable toward and away from the recess (82) opening. Means (90) within the recess (82) and responsive to the spacing between the first (56) and second (74) members are effective to deflect the seal (84) of the first (56) and second (74) members over substantially the entire range of deflection of the members (56, 74).

Abstract: A track chain construction (10) wherein a pair of link chains (11 and 12) are maintained in spaced parallel relationship by shoes (13) secured to the respective links (16,17) of the link chains. The shoes define central lugs (18) for engagement by the drive sprocket in operating the track chain. Each link (16,17) defines an integral unitary structure including a socket portion (23) and a pin portion (24). The pin defines a reservoir (27) for containing lubricating oil for lubricating the pivot joint defined by the pin (24) received in the socket bore (23). A crescent seal (36) defines a moving seal for cooperation with a fixed seal (30,31) between an end cap (29) and the socket end (21) of the link for sealingly maintaining the oil against leakage from the pivot joint (20). A removable plug (28) permits recharging the oil reservoir (27) when desired.

Abstract: An olefin polymerization and copolymerization catalyst active in the presence of an alkyl aluminum cocatalyst is prepared by mixing, in the presence of a solvent, particles of a silica or alumina material having reactive surface groups, and a complex of the general formula (MgR.sub.2).sub.m (AlR.sub.3 ').sub.n where R and R' are alkyl groups and m/n is between about 0.5 and 10, inclusive, to form a hydrocarbon insoluble reaction product which is then mixed, in the presence of a solvent, with a titanium, vanadium or zirconium halide, oxyhalide or alkoxyhalide, followed by evaporation of the solvent.

Abstract: In an agricultural implement for use in ground breaking procedures including a frame adapted to be moved over the underlying terrain in a given direction, at least one ground breaking tool, a pivot connecting the tool to the frame for pivotal movement thereon about a generally horizontal axis generally transverse to the direction of movement between a forwarding ground breaking position and a rearward inoperative position and releasable means interconnecting the tool and the frame for normally holding the tool in the forward position and for releasing the tool for movement to the rearward position upon the tools encountering resistance sufficient to damage the implement.

Abstract: An apparatus and method for applying a uniform coating of liquid solder to a flat tube particularly at and adjacent to the side edges of the tube. The apparatus has spaced heated platens comprising shaping die members located opposite to each other and including tube embracing recesses forming a slot through which the liquid solder coated tube is passed. The disclosure also includes spacing means for spacing these die members apart a distance equal to the width of the coated tubes and yieldable means such as springs urging the spaced heated platens toward each other to bear against the side edges of the tube together with means for drawing the coated tube between the heated platens and means for heating the platens in the vicinity of the tube to a temperature above the melting point of the solder as well as passages permitting draining of excess solder from the tube during its passage between the heated platens.

Abstract: A voltage regulator for an AC generator which supplies power to multiple loads at different voltage levels. The magnitude of the multiple voltages and other controlled variables such as per unit current are sensed and individual field currents are generated. A single field current is selected from the individual field currents as a function of the magnitude of a selected voltage and the per unit current and applied to the exciter field of the generator for accurate control of the output voltages.

Abstract: A ventilation fan which is adapted to be ceiling mounted such as in an attic space above a room ceiling. The fan is arranged to pass upwardly through the space between the ceiling joists in a compact arrangement and to be extended once it is disposed above the room ceiling to define an operating configuration. In the operating configuration, the air moving apparatus is swung outwardly from the housing of the fan on a pivotally mounted wall portion thereof. The fan redirects the upwardly flowing air from the subjacent room at a substantial angle to the vertical in the attic space for improved ventilation functioning.

Abstract: A catalyst, a process of preparing the catalyst and a method of making polymers and copolymers of 1-olefins with the catalyst in which the catalyst is prepared by producing finely divided particles of chromium metal by a sublimation process and dispersing the sublimate of chromium particles with an organic liquid and providing a mixture comprising the chromium sublimate particles and a support such as silica. The mixture is then heat activated in an oxidizing atmosphere. In another aspect of the invention the chromium sublimate particles and support particles are further modified by having a titanium compound as a part of the mixture of chromium sublimate particles and support particles.

Abstract: A trailer to be towed behind a vehicle has a convertible trailer hitch mounting on its front end in which a connecting portion of a trailer hitch is detachably secured so either a straight draw bar connected hitch or a gooseneck fifth wheel connected hitch may be used on the trailer. The hitch mounting has an upwardly open frame with forwardly converging thrust plates at its lateral extremities, while the trailer hitch connecting portion has a base plate that seats in the frame and integral forwardly converging side plates that abut the thrust plates of the hitch mounting frame.

Abstract: A security lock for movable closure and, more particularly, for horizontal slider windows in which a case for the lock has a top wall and side walls defining a generally hollow interior opening to the bottom of the case, a bolt is movably mounted in a channel formed within the case with the channel opening toward the bottom of the case. The bolt is movable between extended and retracted positions. Structure for positioning of the bolt includes a driver associated with a manually-rotatable shaft and a connection between the driven and the bolt which functions to retain the bolt from falling out of the guide channel through the open bottom of the case during handling and shipping and to also transmit movement of the shaft to the bolt.