Abstract: An operator for a casement-type window having an openable sash mounted adjacent one edge thereof for combined pivoting and linear movement of said sash edge relative to a window frame. The operator includes a first operator arm rotatable about a fixed axis and having an end adapted for movable engagement with the sash at a distance from said one edge of the sash to impart a rotational force to the sash, a second operator arm and a connecting link pivotally connected between said second operator arm and the sash adjacent said edge, and said second operator arm being pivotally mounted on the first operator arm, with there being intermeshing drive gears fixed one to each of said arms, with one gear being a drive gear and the other gear being a driven gear.

Abstract: A ball adapted to cling to a textile surface as an incident of being tossed thereagainst. The ball includes a lightweight spherical body having affixed to the external surface thereof a sheet of flexible Velcro fabric. The sheet is provided with a plurality of slits defining therebetween longitudinal strips. Prior to affixation to the spherical body surface, the sheet may have a generally rectangular configuration, with the slits extending parallel to each other and terminating in spaced adjacency to the opposite ends of the sheet. When formed about the spherical body, the slits are spread to have a maximum width about a circumferential portion of the spherical body. The strips are joined at one end by a first end wall extending polygonally about one portion of the spherical body and at the opposite end by a second end wall extending similarly polygonally about a diametrically opposite portion of the spherical body.

Abstract: PCT No. PCT/US80/00022 Sec. 371 Date Jan. 11, 1980 Sec. 102(e) Date Jan. 11, 1980, PCT Filed Jan. 11, 1980. A sealing structure (10) for use in providing a wide temperature range seal between relatively movable first and second joint members (12,13).The sealing structure includes a dynamic seal element (20) having a lip portion (23) maintained in sealing engagement with the sealing surface (19) of one joint member (13). The seal element is movable with the joint member (13) and is urged to follow the joint member by a spring (22) acting against a surface (31) of the other joint member (12) and having a force-applying portion (32) acting through a load ring force transfer portion (29) to the sealing lip portion (23). The spring further causes the load ring (21) to urge a sealing portion (27) thereof into static sealing engagement with a surface (28) of the joint member (12).

Abstract: A geared steering clutch mechanism (18) for use in a vehicle having left and right side propelling devices (11,12) such as tracks, a power drive (16), and a final drive (15) connecting the power drive to the respective left and right propelling devices. The steering clutch mechanism includes a first clutch (24) selectively operable to connect the power drive to the associated final drive to provide a high speed connection therebetween, a speed reduction gear assembly (55,56,58), a second clutch (45) selectively operable to connect the power drive to the associated final drive through the speed reduction gear assembly to provide a reduced speed connection therebetween, and a brake (38) for braking the final drive concurrently with arranging the clutches to positively disconnect the power drive from the final drive.

Abstract: A control system for an elastomer extrusion and application apparatus (10,16) including an extrusion rate measuring device (60,200) for receiving a ribbon (12) of extruded elastomer and for providing a signal representing the rate of extrusion, a drive (18) for moving an article (14) to have the ribbon of extruded elastomer applied thereto in a predetermined path, an applicator (16,20,22) along the path for receiving the ribbon and applying the same to the article, a resolver (176) connected to the applicator for providing a signal representative of the rate of application of the ribbon to the article, and a control (FIG. 5) for controlling the speed of the article drive including a circuit for receiving the signals and adjusting the speed of the drive to match a desired proportion between the rate of extrusion and the rate of application.

Abstract: A seal assembly and a sheave block utilizing said assembly in which a housing (H) mounts a central shaft (12) on which a plurality of sheaves (40-43) are rotatably mounted. A free-floating spacer ring (60) is positioned on the central shaft between each of the sheaves and between a sheave and the housing and has a hard wearing smooth surface as provided by chrome-plating, and a pair of lip seals (62,63) of elastic material are positionable, one on each face of a sheave and an adjacent surface of the housing, with each having a part (64,65) thereof defining a hard wearing low friction bearing surface for sealing engagement with the surface of the spacer ring.

Abstract: A cholesterol standard solution containing a predetermined amount of cholesterol, alcohol, and a long chain alkyl substituted betaine.

Abstract: A slab-type ice maker apparatus wherein a slab of ice is formed on an inclined evaporator plate by the flowing of water over the upper surface of the refrigerated plate. A control is provided for sensing the temperature of the evaporator plate so as to determine when the thickness of the ice slab reaches a minimal preliminary thickness and continuing the ice slab formation for a preselected period of time subsequent to that determination to provide the completed final thickness slab. The thermally responsive sensing structure is mounted to the underside of the evaporator plate for improved sensing operation. The rate of flow of the water is reduced subsequent to the determination of the formation of the minimal thickness slab for improved efficiency in completing the formation of the final slab. Sensing structure is provided for determining the transfer of the ice slab to a slab dividing grid from the refrigerated plate.

Abstract: An aqueous reagent system for the quantitative determination of protein is disclosed. The system contains Coomassie Brilliant Blue G-250 dye, a monobasic strong acid having a pK.sub.a of less than 3 (e.g. HCl), a polybasic phosphonic acid (e.g. NTP), a water soluble, non-ionic surfactant characterized as being a block copolymer containing terminal polyethylene oxide segments separated by a polypropylene oxide segment. Preferably the system also contains a small amount of an alcohol such as methanol or ethanol.

Abstract: A seal (58) is provided between two piece parts (14,18) on each side of a track joint of a track chain (10). An inner cylindrically-shaped sealing ring (60) having an inwardly flared lip (62) is pressed into a slot (72) in one piece part (14) and is sealingly engaged by an overlapping outer cylindrically-shaped sealing ring (64) having an outwardly flared lip (66) pressed into a slot (74) in the facing surface of the other piece part (18). The sealing rings (60,64) are concentric, thin walled case hardened steel and engage along an interface at an angle of approximately five degrees. The piece parts (14,18) inside the oil cavity may be machined to act as thrust faces (48,54).

Abstract: A flexible pouch for packing under vacuum products having sharp projections, such as projecting bones of meat products. The pouch includes a flexible bag formed of heat sealable, puncture-susceptible sheet material and having a puncture guard element secured to the outer surface of the bag. The puncture guard causes the flexible pouch to be highly resistant to puncture by sharp projections such as sharp bones of meat products. The puncture guard preferably includes a plurality of oriented sheets which are laminated in cross-oriented relationship to each other. The puncture guard preferably has an area less than that of the bag. The bag may be a laminate. The puncture guard sheets may have equal thickness and may be secured to each other as by extrusion bonding. In the illustrated embodiment, the bag and the puncture guard are laminates.

Abstract: A nib retaining assembly for a writing instrument to hold a capillary writing element or nib of small cross-sectional dimension in position against writing pressure, the nib retaining assembly including a nib receiving main longitudinal passageway formed by offset portions through which the capillary element extends. The capillary element is held by light staking within an axial bore of a nib holder which, in turn, is inserted into a seat at one end of the passageway. Because of the passageway offset portions and an intermediate camming surface, a capillary element inserted into the passageway is deflected around an internal shoulder so as to be forced into frictional engagement with the passageway walls to hold the small nib in writing position without disturbing the capillary action. In one embodiment of the invention, the passageway is defined by a nib retaining adapter inserted into a seat in the barrel; while in another embodiment the passageway is defined by the tubular barrel of the instrument.

Abstract: A jacking device for use with a thread bar having a plurality of couplers and nuts spaced longitudinally thereon. The jacking device is arranged to permit movement thereof longitudinally past the respective couplers and nuts while permitting utilization of the nuts by threaded movement thereof on the thread bar for supporting different portions of the jacking device relative to the thread bar in effecting the desired jacking operation. The jacking device may be utilized to climb the thread bar and, alternatively, may be utilized to pull the thread bar and lift a load associated therewith. The jacking device includes biased chuck elements movably carried to permit passing of the couplers and nuts and selective support thereof on the nuts in effecting the controlled jacking operation.

Abstract: A drive assembly for connecting a governor (10) to an engine (12) for absorbing torsional vibrations in the shaft while providing a direct drive between the engine and the governor during overtravel. The drive assembly includes a shaft (16) driven by the engine (12) and a rotor (24) mounted on the end of the shaft and received within a housing (18) mounted for rotation about the shaft. The housing contains magnets (35 and 37) which interact with magnetically permeable portions of the rotor (24) to establish a magnetic flux coupling therebetween. During operation, torsional vibrations in the drive shaft (16) will tend to rotate the rotor (24) relative to the housing (18), thereby reducing the torsional vibration imparted from the engine (12) to the governor (10). Pins (32 and 34) limit the amount of relative movement between the rotor and the housing so that the rotor engages the pins, providing the direct drive to the governor during overtravel.

Abstract: PCT No. PCT/US79/00449 Sec. 371 Date Jun. 26, 1979 Sec. 102(e) Date Jun. 26, 1979 PCT Filed Jun. 26, 1979An apparatus and method is provided for heat tacking of elongate material or cables (32) to a tire carcass (15) on both peripheral sides of a core opening (20), spreading the elongate material or cables (32) lying over the core opening (20) so as to position the elongate material or cables (32) on either circumferential side of the core opening (20), and heat tacking the spread elongate material or cables (32) to the tire carcass (15). The apparatus includes a frame (40) having locating pads (72,102) for positioning the heat-tacking and elongate material or cable-spreading subassembly (110) with respect to the core opening (20). The tacking members (120,125,120) are preheated to a tacking temperature so that when the frame (40) is clamped onto the carcass (15), and the elongate material or cables (32) are spread, the spread elongate material or cables (32) are tacked to the carcass.

Abstract: A conductor's chair, podium and stand wherein a podium has a flat standing area at a relatively low level and both the chair and stand have a plurality of generally horizontally-extending legs with certain of the legs having a greater length to underlie and balance the off-center weight of the chair and stand, respectively, and with the longer legs being positionable under the podium to bring the chair and stand relatively close together and with minimal leg exposure beyond the perimeter of the podium. The chair and stand are of separable parts with interengaging sections which may be assembled in only one relation to assure stability in use.

Abstract: A sheath (24) is provided for a syringe (10) having a barrel (18) with a needle assembly (22) projecting axially from the distal end thereof. The needle assembly (22) has a hub (28) with radially projecting ears (62) for threading into a collar (42) on the barrel (18). At least one axially extending, radially projecting rib (60) is carried by the hub (28). The sheath (24) has at least one camming flute (66) comprised of a flat circumferentially facing abutting surface (72) on one side and an axially and circumferentially facing cam surface (74) on the other side thereof. The sheath (24) frictionally grips the needle hub (28) with one rib (60) juxtaposed with respect to the camming flute (66). Rotation of the sheath (24) in one direction will engage the flat surface (72) with the rib (60) to rotate the needle assembly (22) with the sheath (24) for unthreading the needle assembly from the collar (42) on the barrel (18).

Abstract: A tracheostomy tube assembly (10) includes a tracheostomy tube (11) and a neck collar (14), which limits movement of the tracheostomy tube (11), but allows adjustment of the height of the tracheostomy tube (11). The collar (14) has a deformable sleeve (29) that is oversized relative to a portion of the tracheostomy tube (11) which extends therethrough. In an undeflected condition, portions (46,46) of the sleeve (29) engage the tracheostomy tube portions (43) to fix its height. When the sleeve (29) is deflected by compressing the sleeve (29) together at selected points, the engaging sleeve portions (46,46) will be deflected away from the tracheostomy tube portions (43) to permit axial movement thereof.

Abstract: A skin-fold caliper includes a base member having a handle portion and a jaw portion, a slide member having a mounting portion and a jaw portion, and a coiled spring attached between the base member and the slide member to bias the ends of the respective jaw portions together. The slide member is mounted within a recess defined by the base member for linear movement therealong. The spring is selected so that a change in its extended length does not effect a large change in the force applied to close the jaws. Herein, a thin wire spring with many coils housed between the base member and slide member is utilized to obtain this function.

Abstract: 1.