Abstract: A wiper assembly (1) for a printing apparatus comprises a finger bar (19) extending longitudinally of printing rolls (5, 7) in a spaced relation thereto at the point of contact between the rolls. Pneumatic rams (33, 35) are attached to respective ends of the finger bar adjacent the bearer members (9, 11, 13, 15) on the rolls. Wiper pads (53, 55) are attached to the ends of each ram and engage the roll bearers. A compressed air supply (81) activates the rams to move the wiper pads into and out of contact with the bearers.

Abstract: A method of producing intact islets of Langerhans in an insulin producing condition uses a mixture of Hank's solution and 10% by volume fetal calf serum to ductally distend the human pancreas. The exocrine tissue of the pancreas is digested at about 37.degree. C. by an enzyme preparation of collagenase, trypsin and proteolytic enzyme present in the mixture at a level of about 0.2% by weight. The digestion is monitored at regular intervals during the process. The digested pancreas is comminuted, filtered and intact islets of Langerhans are recovered. The recovered islets retain their insulin producing properties.

Abstract: A traffic barricade of the A-frame type constructed of a lightweight material such as plastic to have a forbidding appearance. The barricade members are unitarily constructed to be interchangeable and with integral hinge mechanisms. The hinge mechanisms have detenting elements for improving the resistance to winds tending to cause the closure of the "A" stance of the barricade. The barricade permits a damaged hinge element to be readily replaced. Ballast may be added to a storage compartment arranged adjacent the supporting surface for the barricade. The design of the plastic barricade permits a warning light to be directly secured by a mounting bolt functioning as a hinge pin. The individual barricade members may be stacked with substantially no relative movement of the stacked members.

Abstract: A journal bearing block (10) has opposed sides (62, 63) received in sliding relation between the opposed sides defined by gibs (14, 16) of a slot (18) of a printing press sideframe (12). One of the gibs (14) has an elongate groove (54) and one of the bearing block sides (62) has an adjacent elongate groove (74). A key (86) is received by the bearing block groove (64) and includes an outstanding portion (90) extending into the gib groove. The key includes a threaded opening (70) and is connected to the bearing block by a rotatable adjustment screw (74). The key is narrower than the bearing block groove but substantially the same thickness as the gib groove, whereby rotation of the adjustment screw causes the key to travel laterally in the bearing block groove with the result that the bearing block, with its rotary die journal travels laterally relative to the sideframe (12).

Abstract: A highly corrosion resistant, durable, strong, hardenable and relatively inexpensive nickel based alloy containing chromium and a high iron content has improved castability and weldability. The alloy contains approximately the quantities indicated: nickel 33 to 53 (to balance to 100 percent), chromium 20 to 25 percent, molybdenum 6 to 9 percent, cobalt 4 to 8 percent, iron 15 to 20 percent, manganese 2 to 4 percent, copper less then about 0.15 percent, carbon up to 0.2 percent and silicon 0.5 to 1.0 percent. The alloy is air meltable and produces a highly fluid castable melt. All percentages are by weight.

Abstract: This expansion valve includes a valve body providing an inlet chamber and an outlet chamber separated by a compound valve. The compound valve includes a check valve seat defining a valve port receiving a check valve element and the check valve element includes a control valve port receiving a control valve element. During normal refrigerant flow conditions when the pressure in the inlet chamber is greater than the pressure in the outlet chamber, the check valve remains seated while the control valve element meters refrigerant flow between the two chambers. During reverse refrigerant flow, when the pressure in the inlet chamber is less than the pressure in the outlet chamber, the check valve is urged away from the check valve seat to provide for relatively unrestricted refrigerant flow between the two chambers.

Abstract: This coin divertor assembly includes a body providing a coin entry path and two coin exit paths. A gate member is mounted to the body at the end of the coin-entry path for selectively diverting a coin into one of the coin-exit paths. A holder maintains the gate in each of the gate positions in a stable equilibrium condition and an actuator provides an impulse force for moving the gate from one position of stable equilibrium to the other position of stable equilibrium.

Abstract: This identifying device is attached to a portion of an article such as a shoe and includes a retainer having a flanged base and raised peripheral walls defining at least one socket. Identifying elements having the same configuration as the sockets are removably snap-fitted into the sockets. The shoe portion includes attached upper and lower plies of material, the upper ply having openings receiving the peripheral walls and overlying the flanged base to hold the retainer in place.

Abstract: The payout mechanism is for use with a relatively large number of coin changer storage tubes of the type having a reciprocating payout slide for dispensing coins from the tube. The payout mechanism includes a plurality of connection members each connected between an associated payout slide and a rotatable drive shaft. In one embodiment the connection members include first latch portions which are longitudinally spaced relative to the drive shaft and angularly spaced relative to each other and second latch portions which are engageable with the payout slides and are selectively connectible to associated first latch portions. A reversible electric motor is used to rotate the first latch portions on the drive shaft into alignment with the second latch portion and to oscillate the drive shaft and thereby reciprocate the payout slide when the selected latch portions are moved into connected engagmeent by a solenoid.

Abstract: This invention provides an apparatus to support a trimmer used in cutting weeds or grass in a generally horizontal mode and having an elongate tubular member providing a handle. The support apparatus includes a mounting assembly having opposed ends, one of said ends being connected to the tubular member in height-adjustable and angularly-adjustable relation and the other of said ends being connected to a pair of ground wheels having an axis of rotation transverse to the axis of the cutting plane of the trimmer.

Abstract: This mattress hanger assembly provides an adjusting assembly for raising and lowering a mattress support. The assembly includes a bracket having a plurality of openings each representing a different position to which the support can be raised or lowered. A hanger carried by the support is received in one of these openings and a lock member secures the hanger in a selected opening to prevent the hanger from slipping out of the opening and placing the mattress in an unstable condition. The crib can include a drop rail having a track and slide system to facilitate access to the adjusting assembly.

Abstract: A broad spectrum light absorbing medium to be coated over photosensitive layers, such as a photoresist for integrated circuit "chips" to act as a true surface for autofocus of the camera used to expose the photoresist. The product may also be used where a light impermeable, high contrast or black coating is needed, such as, in liquid crystal displays and light emitting diodes, photodiodes, solid state lasers, or patterning apertures on light-wave modulators. The coating absorbs light from 200 to 1000 nanometers. The coating has a polymer vehicle which can form a tightly adhering, thin, smooth and uniform coating. The coating includes a light absorbing dye. This light absorbing layer may be imageable.

Abstract: A surface suitable for equestrian and other use such as ball games is formed using a sand mixture which comprises a selected sand within which is distributed in a homogeneous and randomly oriented manner a relatively small percentage by weight of straight (uncrimped) polymeric fibres, the fibres serving to hold the sand together under the weight of the horses hooves or players feet or other users such as wheeled vehicles or implements.

Abstract: In a sealing and wiper arrangement, a sealing ring (5), which may also serve a wiper function, and a stressing ring arrangement (6) are accommodated in a groove (4) of a first machine part (1). The stressing ring arrangement (6) is positioned between the sealing ring (5) and the base of the groove and urges the sealing ring against the surface of a second machine part (2) which is capable of a movement relative to the first machine part (1), in a direction perpendicular to the direction of the groove (4). The sealing ring (5) is in contact with a second machine part (2) by a wiper web (8) and an edge (11) provided on its high-pressure side. The edges (10, 11) provided on the sealing ring (5) are loaded independently of each other. This is achieved by giving the stressing ring arrangement (6) the form of two separate portions of a stressing ring. In one embodiment two completely separate stressing rings (61, 62) are provided. In another embodiment a Quad-ring (40) is provided.

Abstract: A door latch mechanism mounts on a door for selectively engaging a door strike. A latch bolt moves along a line of action to disengage the strike and allow the door to be opened. A dead lock prevents unwanted opening of the door and includes a blocking element to prevent movement of the latch bolt along its line of action. A release enables the latch bolt to move along its line of action and includes a bell crank for displacing the blocking element whereby the latch bolt can disengage the strike.

Abstract: A vacuum actuated chemical dispenser. The dispenser includes a chemical chamber and a vacuum chamber. The dispenser further includes a chemical chamber piston and a vacuum chamber piston located and movable within their respective chambers. A coil spring associated with the pistons returns the pistons to a pre-vacuum actuated position. The pistons are adjustable in order to adjust the measured amount of chemical to be dispensed from the chemical chamber.

Abstract: This shrink wrap package includes a container having side margins defining an open top and a shrink wrap plastic cover having a first portion disposed above the container margins and a second portion disposed in lapped relation to the container below the margins, the first portion including vent openings of a size and number to permit free airflow through the package and allow the escape of gas. The cover is shrink-wrapped to the container by means of a heat gun and in one embodiment the cover is dome-shaped to suit placement over a container basket having an arcuate handle.

Abstract: A method of superplastically forming aluminum alloy composites employs explosive bonding to produce strong, consistent bonds and annealing treatment to produce a fine microstructure in the bonded alloy sheets. The bonded alloy sheets having the fine microstructure can then be formed by superplastic methods to produce complex parts and structural elements.

Abstract: A fabric sack, comprising top, bottom, front and rear walls, has an opening for access to its interior provided in an inclined upper region of its front wall to avoid interference by any luggage strapped to the top wall of the sack and also to allow easy access when the sack is upright and/or on someone's back, and/or laid down on its rear wall. An internal supporting frame extending up the rear wall and across the top of the sack is also provided.

Abstract: A coal crusher roll includes a smooth tubular cylindrical back-up roll having a series of regularly spaced tapped radial holes to receive bolts by which eight identical shell segments may be fastened on the back-up roll. The holes at the axial ends of the segments are undercut to provide a rabbet into which fits the tang of a special lifting hook by which the segment can be easily handled by a lightweight crane. A recess in the central part of the segment defined by a peripheral berm around the backside of the segment reduces the weight of the segment, provides a place for receiving balancing weights, and simplifies the face fit machining for the segment with the back-up roll.