Abstract: An apparatus for treating hides or skins with liquids in so-called wet processes, e.g. tanning, drenching, dyeing, etc., includes a liquid-impermeable substrate receiving the hide in inflexible manner and a treatment device tightly applicable to the top of the hide by which the treatment liquid penetrates the hide under pressure. For limiting the operating pressure in the range of approximately 10 bar, and for the effective penetration of the treatment liquids, the treatment device has several juxtaposed liquid supply ducts arranged roughly at right angles to the substrate, which are widened in large-area manner on the underside of the device facing the hide and are arranged thereon in surface-filling manner. Between the underside of the treatment device and the hide is arranged a fine-mesh support and the gap between the substrate, hide, support and treatment device can be substantially tightly sealed to the outside.

Abstract: The device includes at least one selection lever, one end whereof is arranged laterally facing the needle cylinder at the level of a heel of selection elements accommodated in the grooves of the needle cylinder below the selectors or sub-needles. The selection lever is movable towards or away from the needle cylinder from a first position, in which its end engages the heel of the selection elements, to a second position in which it does not interfere with said heel. The end of the selection lever has a rising portion which in the first position raises the selection element when the needle cylinder rotates with respect to the selection lever. As an effect of this lifting, the overlying selector is engaged by a lifting cam arranged facing the needle cylinder so that the overlying needle is moved to knit.

Abstract: A yarn feed finter for use on circular Links and Links knitting apparatus for the manufacture of plaited fabric. The finger has a generally elongated, rectangular-shaped flat body having a pair of eyelets located thereon in a side-by-side disposition and which are slightly offset from each other. The finger is adapted for pivotal movement into and out of active position with the needles of the apparatus and to direct through the eyelets simultaneously in parallel with each other and at different angles of approach to the needles to feed at least two yarns to the needles to produce a plaited fabric in which one yarn is visible on one side of the fabric, and another yarn is visible on the other side.

Abstract: A sewing machine has at least one rotating top thread hook, the hook enclosing a bobbin housing which accommodates a bottom thread. A spring bar is mounted in the base of the sewing machine and has a free end for bearing against the bobbin housing. The free end of the spring bar is displaceable by the top thread as it is being looped. To prevent unwanted displacement or oscillation of the spring bar, a cam is disposed in the base closely adjacent to the free end of the spring bar. The cam prevents displacement of the free end beyond a predetermined range of displacement.

Abstract: A contractible (elastic) and a non-contractible (non-elastic) yarn are knitted together with the contractible yarn floating over at least some needles in a course of knitting. The non-contractible yarn also floats over at least some of the needles where the contractible yarn floats, with the result that a loop pile fabric is produced.

Abstract: A two-needle lockstitch sewing machine apparatus providing a hooking arrangement such that each thread loop is positioned in the same direction in relation to the needle position. The hooking arrangement is effective to stitch each left and right stitch line with a needle thread having almost the same degree of twist. Thus, uniform stitch lines are obtained and the "edge effect" which is often experienced when the needle thread passes through the needle eye during stitching is eliminated.

Abstract: A portable fleshing tool has a thin, circular blade mounted on a drive shaft of a motor. A front and a rear guard substantially protect the blade, with the rear guard removably attachable to the housing of the motor and the front guard removably attachable to the rear guard. The front guard is slightly vertically adjustable to permit slight adjustment of the depth of a fleshing cut because the fleshing blade is being operated in a plane perpendicular to the plane of the pelt or hide being fleshed.

Abstract: A chain stitch sewing machine has a movable stitch eccentric shaft for switching between a bunch stitch and a long stitch and a rotatable main drive shaft. A mechanism is mounted on the main drive shaft for rotation therewith to move the eccentric shaft to effect the switching from the switch to the other while the machine is in operation.

Abstract: A fleshing machine for removing fat and fleshy membranes from a hide or pelt, which includes a fixed position roller with many shaped cavities. Each cavity extends from an opening on the surface of the roller into the roller. A plurality of knives are contained one or more within each cavity. Each knife has a shaped cutting head which, in use, protrudes from the surface of the roller. The knives and cavities are so shaped that each knife is capable of limited reciprocal movement in a direction perpendicular to the axis of the roller.

Abstract: A hide skiving machine adapted to skive a hide in one pass constituted by a frame which supports, at its sides, a rotatable support cylinder upon which the hide is fed and is held in place by a slidable presser roller. A lower oscillating frame having a rotating lower blade cylinder and an upper oscillating frame having a rotating upper blade cylinder are furthermore provided which skive the hide. The oscillating frames are independently movable between a raised non-working position and a lowered working position by respective actuators. Each blade cylinder is provided with a sharpening assembly which maintains the blade sharpness for more effective skiving. An adjustable, flexible front shield and a feed table are furthermore provided. The oscillating frames which support the blade cylinders are also provided with play recovery elements which help maintain the position of the blade cylinders with respect to the hide.

Abstract: A flip-up mounting bracket for use of a stripped down ground system type ht vision goggle on an aviators helmet. The frame and excess padding surrounding the ground system goggle is removed and the mounting bracket is substituted for the frame as a threadable mount for the ground system goggle. The bracket is rotatably connectable to standard aviators night vision imaging system (ANVIS) hardware on the helmet. The mounting bracket and goggles are rotatable about the hardware for stowing the ground system goggles up in the vertical flip-up position or down in the direct view of the pilot for use in night observation.

Abstract: A face mask release apparatus for a contact sports helmet includes a face mask having a three point attachment to the left and right respective side portions of the helmet and to the forward forehead area of the helmet. The attachment includes a plurality of posts, positioned in pairs on each respective side of the helmet in the temple areas and a ball and socket connection in the forehead area. Each post includes a grooved area formed around the post defining a narrowed diameter section and a bracket carried at the ends of each side of the face mask forms a releasable connection with the posts in virtually all directions away from the helmet and along the helmut so that the user is protected from head and neck injury when force is applied to the mask in any of one of a plurality of directions.

Abstract: A method for operating a conventional circular knitting machine, provided with indepenent and continuously operating pattern wheels, to develop patterns including knit, tuck, welt and terry stitches in the same course(s). By synchronizing the sinker selection and needle selection components, in a complementary manner, the resulting tubular fabric may include terry loop areas adjacent to decorative flat-knitted areas which together comprise the entire circumference of said tubular fabric rather than the dull, uninteresting non-terry areas generally resulting in tubular fabrics which include terry areas in only a portion thereof.

Abstract: A thread exchange device for multisystem knitting machines includes a knot unit for knotting a new thread on a movable old thread. The knot unit has a winding finger on which a closed loop of the new thread is formed, a part for moving the new thread into engagement with the winding finger, a loop turning lever that engages the old thread to form an open loop thereof and lays the open loop of the old thread into the closed loop of the new thread during continuous movement of the old thread. The knot unit further includes a hook that engages an end of the new thread and pulls the end of the new thread through the open loop of the old thread. The exchange device further includes a brake located between an element for establishing a thread compensation path and the knot unit for tightening a knot. The method relates to forming knots of a new thread with a movable old thread during continuous movement of the old thread with the use of the thread exchange device.

Abstract: A thread chain guiding device provides a needle-thread-guide plate which extends underneath a throat plate by energizing a solenoid as needed. Thus, the needle-thread-guide plate pushes the needle threads twined around a lower looper outwardly away such that the thread chain is prevented from hanging on an inner chain-off finger when it is rotated counter clockwise. The needle-thread-guide plate is retracted during a normal stitching process by de-energizing the solenoid.

Abstract: Helmet provided with a signal ensuring the user that the locking of the retention system is totally achieved. In the case represented, the signal is a sound source (9) which is powered by a battery (8). Plate (2) of chin strap (7) is secured to shell (1) and is also part of the power supply circuit for signal (9). The circuit is activated when a force exerted against textile tape (4) by the user's head is sufficient to establish contact between a flexible blade (19) and plate (2). The signal stops emitting when the force disappears, upon removal of the helmet or when the chin strap (7) is sufficiently tensioned towards the inside of the helmet and is therefore properly fastened to separate flexible blade (6) from its contact point on extension (13) of plate (2). The device is particularly adapted to helmets for motorcyclists.

Abstract: Improved drive means is provided for imparting clockwise and counterclockwise reciprocal movements to the yarn guides of a circular warp knitting machine including a plurality of vertically reciprocated needles. The improved drive means includes an endless timing belt drivingly connected to the yarn guides and a crank arm drivingly connected at one end to the endless timing belt. A rotary drive wheel is connected to the opposite end of the crank arm for imparting continuous longitudinal reciprocation to the crank arm and to thereby impart reciprocating movement to the endless timing belt and the yarn guide drivingly connected thereto. The yarn guide may include a first yarn guide for directing a base or ground yarn to the needles and a second yarn guide for directing an inlay yarn to the needles. Endless timing belts are utilized in driving each of the base yarn guide and the inlay yarn guide and the timing belt drive permits the circular warp knitting machine to be operated at an increased operating speed.

Abstract: A control system which allows a plurality of shapes to be knitted by a simple change of profile cam (80). The profile cam (80) controls in a desired variable manner the feed rate of elastic or ground yarns to control the shape of a garment. The shape can also be controlled by further profile cams (200, 202, 204) to control both elastic and ground yarns and in a dial and cylinder circular knitting machine to alter the dial height while the machine is in motion, thereby further controlling the width of a garment.

Abstract: A composite sheet material which is particularly useful as a backing material for carpet underlay is a stitched crepe paper sheet 5 with rows of apparent projections 13 formed therein between parallel rows of stitches 10 by deforming the crepe paper sheet without puncturing the paper. The stitches 10 substantially restrict the extensibility of the crepe paper sheet 5 and the apparent projections 13 are formed at a position in the crepe paper sheet 5 directly in line with the ends 11 of the stitches 10. According to the preferred method, each apparent projection 13 is in reality a depression between two projections formed in the opposite surface of the crepe paper sheet without puncturing the paper. In an alternative embodiment there is a pair of apparent projections 13 formed in the crepe paper sheet 5 between adjacent rows of stitches 10.

Abstract: A sewing machine with a housing having a base over which the workpiece is movable and with a drive shaft is rotatable in the housing. A needle bar is provided having a plurality of needles and is connected to the drive shaft and moved upwardly and downwardly. A feed mechanism is provided for moving the workpiece. A looper support has a looper for each needle and is connected to the drive shaft for swinging movement. A loop spreader connecting rod has a loop spreader for each needle and is movable transversely to the movement of the needles. A spreader drive shaft is connected to the drive shaft and has a drive crank eccentric which is oscillated by the rotation of the spreader drive shaft. An eccentric arm carried by the crank eccentric is connected to a rocking shaft via a clamp lever and the rocking shaft is connected to a crank which is connected to the connecting rod which carries the spreaders.