Abstract: Segmented thermoplastic copolyester elastomers containing recurring polymeric long chain ester units derived from phthalic acids and long chain glycols and short chain ester units derived from phthalic acids and a mixture of 1,4-butanediol and 1,4-butenediol.

Abstract: A continuous automotive felt die cutting press, cuts pattern out of a web passing through it. After exit of the web from the cutting press, the cut patterns and web are passed over a perforated roller that rotates about internally segmented zones having a plurality of removable solid and perforated sleeves. The roller is capable of transmitting a vacuum or a pressure through any one of its internally segmented zones with directional and force control being partially provided by the removable sleeve placement on the segmented roller. Base guides, which are adjustable, are located in the area between the perforated sleeves to provide a solid base for the cut patterns to rest upon during their vacuum separation from the web.

Abstract: This invention pertains to asphaltic sheet sound deadener for use as a vibration damping medium, which can be bonded in place without excessive sag or flow by subjecting the material to 250.degree.-400.degree. F. The main use of this material is in the automotive field, but may be used in other areas such as the appliance and furniture industries. The melt flow properties of the deadener are controlled by the use of ground mica.

Abstract: An instant print slide projector is provided for sequentially displaying a plurality of photographic images on a remote screen one at a time and selectively copying one or more of said images on self-developing photographic print film. In addition to conventional slide projector components, the invention also includes means for holding a pack of instant print film, a camera lens for selectively focusing the image from a transparency on the photosensitive surface of the film, a shutter to normally prevent light from entering the camera lens, and image directing means for intercepting the image and creating an optical path for the same to the film surface.

Abstract: A hand held motion picture viewer includes a housing having a recess formed in one end of the housing for carrying a film cartridge, and a viewing aperture in the opposite end of the housing through which the images on the film in the cartridge may be viewed. The housing carries a film driving mechanism for engaging and advancing the film within the cartridge past the viewing aperture. The film driving mechanism includes a battery operated motor, a claw journaled for rotation within the housing and positioned to engage sprocket holes in the film when the cartridge is carried within the recess of the viewer, and a gear transmission means connected between the motor and the claw for rotating the claw in discrete arcuate steps when the motor is energized to produce intermittent film advance. An actuating lever and movable contact means are provided for selective electrical connection of the motor with the battery for selective energization of the motor and film advance.

Abstract: A film buffer for motion picture projectors is provided to permit the smooth advancement of the film through a projection gate, and to serve as a shock absorber to insure even projection. The buffer comprises a pair of rollers in fixed relation to each other juxtaposed to form a loop in the film in its path of travel, from a film supply reel to a film transport mechanism for incrementally advancing each frame of the film past the projection gate, a bracket for holding said rollers pivotally mounted on the face of the projector at a mid-point between the two rollers to permit swinging movement to increase or decrease the film loop size depending upon the tension of the film, a counterweight fixedly connected to the bracket to pivotally bias the same into a position to increase the film loop size, and a torsion spring positioned beneath the counterweight to engage and cushion the same as it moves toward a rest position.

Abstract: In a diazo-type copying apparatus, an improvement to prevent external leakage of gaseous ammonia to the atmosphere. The apparatus comprises a developing chamber, transport means within the chamber, means for introducing ammonia gas to the chamber, a first enclosure enclosing the chamber for sealing it from the atmosphere, a second enclosure containing the first enclosure as well as a perforated vacuum tube for collecting ammonia gases escaping from the first enclosure as well as for scrubbing ammonia gases from developed copies and exhausting the gases either to a liquid ammonia absorbing solution, a filter containing an ammonia absorbing solution, a cartridge containing ammonia absorbing pellets or a catalytic converter thereby preventing the ammonia gases from contaminating the atmosphere.

Abstract: An X-ray film cassette comprising of a rectangular body and a rectangular cover hinged to the body. The cover is secured by means of a pair of latches mounted on the side of the rectangular body which mate with latch means on the cover. The cover is deformed to be convex on the inside and is resilient. The cover has and body may have cushion pads on their inner surface to uniformly push intensifying sheets against an X-ray film in the cassette. The cushion pads are provided with a number of air release channels to improve the distribution of pressure thereof on the X-ray film.

Abstract: A modular film transport and control mechanism for selectively advancing either regular 8mm or super 8mm perforated motion picture film through a projection gate is provided. The module comprises a film transport shuttle having a film engaging claw biased for engagement with the perforations of the film, a rotatable drive cam in operative engagement with the shuttle to reciprocally move the claw along horizontal and vertical paths to advance the film through the projection gate, and a pivotally mounted projection mode shifter interposed between the shuttle and the cam to transmit the desired horizontal motion from the cam to the shuttle, and selectively movable between at least two positions along a surface of the cam to change the mode of operation from normal projection to still projection. A control linkage connected to the shifter permits manual selection of the desired operating mode. The module also comprises a rotatable shutter mounted on a common shaft with the shuttle drive cam.

Abstract: An apparatus for developing high resolution photosensitive diazo plates by exposure to ammonia vapor is provided.

Abstract: A film web handling mechanism includes a motor for driving the mechanism, and an endless belt for transferring the motor drive to a supply pulley, a take-up pulley and a shuttle-shuttle drive pulley. The supply pulley and the take-up pulley are connected, through a supply clutch and a take-up clutch, to a supply spindle and a take-up spindle. The endless belt is driven in one direction only by the motor, however, the supply and take-up spindles are capable of moving the film web in both a forward and reverse direction. The forward and reverse direction capability of the supply and take-up spindles is accomplished by varying the amount of motor drive transferred to the spindles through the clutches. By means of a single control knob linked to the supply clutch and to the take-up clutch, an operator is able to select a mode of operation.

Abstract: The invention is directed to a combined display and shipping package which has two major components, an outer sleeve and an inner shell arranged for telescoping engagement with one another. The outer sleeve covers and provides protection for the inner shell during shipment and is slid back over the inner shell in a telescoping manner to permit visual display of an item to be displayed without the full removal of the protective outer sleeve which may or may not have advertising or display information on it. The inner shell has an inclined base so that when the package is used for display purposes, it maintains an inclined position to project the display item into full view of a prospective customer. To prevent the display package from tipping, the item displayed therein is secured in the package in a manner so that the combined centers of gravity for the item displayed and the display package is located to prevent tipping of the package without the need of additional support.

Abstract: .Iadd.The invention is directed to a tennis ball which includes a spherical shaped inner-member made of rubber or similar material and filled with compressed air to give it the desired shape and resiliency. An outer cover made of two pieces of non-woven non-napped, needle-punched fabric cut into the form of a figure eight is applied to the inner-member by an adhesive. The needle-punched fabric is formed by a sheet of fibrous material in which the fibers normally extend in a plane substantially parallel with the upper and lower surfaces of the sheet and in which a large number of the fibers extend substantially perpendicular to the upper and lower surfaces of the material which is needle-punched therefrom. As a result, the fibers which extend perpendicular to the upper and lower surfaces interlock with successive layers of the fibers to form a desirable cover layer. .Iaddend.