Abstract: The rail anchor system includes two pins and two clips. Each pin extends through a horizontal transverse bore in a cross-tie. The pins have extensions at each end exposed on both sides of the cross-tie and the bores are parallel to and substantially within the outer edges of the bottom flange of the rail which sits on the cross-tie. Two resilient clips form a part of the system. Each clip has a looped section, a hooked extension extending from one end of the looped section and a lever extension extending from the other end of the loop section. A clip is used on each side of the tie with the loop sections engaging the pin extensions of opposite pins and the lever extensions being locked by opposite pins when the respective hooks are in engagement with the cross-tie.

Abstract: A polarity control valve enables the undiscriminating interconnection of a pressure line and a return line to two available ports to provide fluid pressure at an output line and a return connection through a return port. This feature of interconnecting either the pressure line or the return line to any of the two available ports is achieved by a pressure positionable spool mounted in a ported sleeve. The spool is positionable between one of two positions depending upon which port is connected to the pressure line. By controlling the distribution of lands on the spool the position thereof always establishes a fluid path from the pressure line to an output port connected to a fluid pressure responsive component. Fluid returning from the component is likewise directed by means of the positionable spool to the return line.

Abstract: A method of manufacturing a slide fastener stringer is disclosed as including the steps of cutting a row of transverse slits in a strip, and applying a row of reinforcements across the strip, placing a continuous coupling element on the strip so that head portions protrude out of the slits.

Abstract: A stapler of the type having a top cover member and lever member mounted for pivotal movement between an operative position disposed in closing relation with the open top of the magazine chamber of a magazine member and a staple stick loading position displaced approximately 180.degree., a staple stick pusher mounted slidable on a mounting rod within the magazine chamber and a flexible elongated pusher retracting member molded of plastic material having one end portion abutting the pusher apertured to receive the rod therethrough and the opposite end formed with a disk-shaped head insertable through an elongated slot in the top cover member so as to move within a space defined by the top cover member and the lever member.

Abstract: Heels of leg portions of thermoplastic coupling elements are welded to the opposite sides of a polymer film tape leaving an edge portion of the tape between diverging inside surfaces of the leg portions spaced from the welds.

Abstract: The invention contemplates an improved mechanical traction drive providing a single control whereby a desired range of speed ratios between input and output shafts is selectively available, without requiring clutch connection to the power source, such as an internal-combustion engine. The transmission involves a combination of completely mechanical friction-roller and meshing-gear planetary systems which are connected at all times, whether the single control is operated to call for a forward drive, a stop or a reverse drive of the output shaft. For the particular disclosed forms, provision is made for automatic downshifting reaction to increasing load, and major axial-reaction forces are self-contained by rotating mechanism, thus (a) avoiding substantial axial force components on main-bearings of the mechanism, and (b) reducing to very small magnitudes the requisite force for selective control actuation.

Abstract: A skirt-like device attached to the exit end of a rocket engine nozzle is fabricated of thin sheet heat resistant metal; which when extended in operative condition is in frustoconical form, but which prior to engine firing is pleat-folded inwardly into a stowed position relative to the exit end of the rocket engine nozzle. Thus, prior to engine firing the device adds little or nothing to the engine/nozzle occupancy space; but incident to engine firing the device deploys to provide an effective engine nozzle/skirt combination of increased length and exit diameter/area; said combination having an inner surface of constant slope.

Abstract: An interlocking element for a slide fastener is produced by substantially laminar flow of synthetic polymer resin through one of a pair of leg portions extending from opposite sides of a head portion of the element, through the head portion, and through the other of the pair of leg portions.

Abstract: An improved collapsible threaded anchoring device for securing items to a plate-like workpiece is an insert having an upper head portion adapted to engage the working face of the workpiece, an annular cylindrical sidewall which is collapsible and adjacent to the head portion, and a threaded shank portion. The head portion, the collapsible sidewall portion and the shank portion are integrally formed. The improved insert device is adapted for securing to a plastic plate-like workpiece. The improvement comprises a noncylindrical, noncollapsible collar having a cross-sectional width not less than the shank or sidewall portion and interposed between the head portion and the sidewall portion. The collar has an axial thickness slightly greater than the nominal thickness of the plastic workpiece.

Abstract: The device comprises a stand having a display section inclined slightly to the horizontal, and a selector section projecting from the forward edge of the display section. A plurality of narrow recesses are formed in the face of the display section in parallel rows and intersecting columns; and each recess is designed to hold a folded spectacle frame. A plurality of selector strips are mounted for reciprocation in parallel grooves formed in the face of the selector section. Numerals on the face of each strip register one by one with an opening formed in the panel adjacent one end of each strip so that for each different position of a strip a different one of its numerals will be viewable through the associated opening. A spectacle frame selector pad is mounted on the selector section adjacent the selector strips, and has thumb tabs marked for different ranges of numerals that may be displayed by the selector strips.

Abstract: A display set-up pattern is disclosed for use in the setting up of retail pegboard displays. The pattern is mounted on the perforated board and hooks and packages are placed on the perforated board in locations indicated by information printed on the pattern. The pattern is formed of tearable material so that it may be torn from the completed display.

Abstract: An automatic and manual linear reversion control mechanism for a hydraulic servo actuator assembly is disclosed for linearly transferring control between an automatic (fly by wire) control mechanism and a manual control mechanism. A command select mechanism includes two axially aligned pins mounted on a rigid command selector bar, with the first pins slidably mounted in a slot in a control bar of the manual control mechanism and the second pin slidably mounted in a slot in the control bar of the automatic control mechanism so that movement of the command selector bar to displace the two axially aligned pins in their associated slots provides a linear transfer of control of the hydraulic assembly between the manual control and the automatic control.

Abstract: An elongated member inserted through coinciding central openings of interlocking coils at the bottom of a slide fastener is secured therein by deforming one or more of the convolutions of the coils at the bottom of the slide fastener.

Abstract: A blind fastener capable of providing a strong fastening force on workpieces whose composite thickness may vary from minimum to maximum within a predetermined range. It comprises a tubular sleeve and pulling mandril therewithin, such mandril having a head which is pulled against the blind end of the sleeve to cause the same to be crimped or upset against the blind side of the workpieces. The sleeve is formed with a tapered end portion which varies from maximum wall thickness at the blind end thereof to minimum thickness intermediate the length of the sleeve. The mandril is formed with a complementally-shaped taper which varies from the head of the mandril to a point intermediate the length thereof.

Abstract: A relay pilot regulator for use in combination with a main regulator in a gas distribution system, the gas distribution system including an inlet conduit supplying gas at an inlet pressure and an outlet conduit for delivering gas at a reduced outlet pressure, the main regulator including a main valve controlling gas flow from the inlet conduit to the outlet conduit and thereby also controlling the outlet pressure, a main regulator diaphragm mechanically linked to the main valve and a loading chamber the loading pressure in which acts on the main regulator diaphragm wherein the loading pressure positions the main regulator diaphragm and the main valve, the relay pilot regulator providing and controlling the loading pressure in the loading chamber.

Abstract: In the manufacture of trains of fastening elements for slide fasteners, flowable synthetic polymer resin is injected into gate or runner channels formed in a cavity wheel and extending beneath one edge of a band enclosing cavities of the cavity wheel such that the flowable synthetic polymer resin flows through the channels into the cavities to form fastening elements.

Abstract: The invention contemplates an improved traction-drive transmission of the variety in which plural planet wheels are radially displaceable in orbital motion about an axially opposed pair of axially shiftable sun wheels and within an axially opposed pair of rotationally fixed reaction rings, said planet wheels having constant angular-contact with the wheels and rings of both pairs. An axially fixed pivotal reference between the sun wheels is used for linked connection of the sun wheels such that displacement of the respective sun wheels is always equal in magnitude but in opposite axial directions with respect to the axially fixed reference, thus assuring that the instantaneous radius of planet-wheel orbit between the sun wheel and reaction ring on one axial side of the fixed reference will at all times match the instantaneous radius of planet-wheel orbit between the sun wheel and reaction ring on the other axial side of the fixed reference.

Abstract: Each stringer of a slide fastener includes a plurality of spaced coupling elements, molded on continuous connecting threads, with wing portions extending into the spaces between the legs of coupling elements on the upper side thereof. The stringer tape weft threads are looped over the connecting threads and pass over the edges of the wing portions adjacent the heads of the coupling elements while a number of the warp threads interwoven with the weft threads overlie the legs and wing portions to form a slide fastener chain with hidden or invisible elements.

Abstract: A non-woven fabric or film of thermoplastic material has a pattern impressed on its surface so that it has a more pleasing appearance. The film is pressed between the patterned surfaces of two mold bands and is passed through an electromagnetic field which heats a susceptor material in the film to soften the fabric or film so that the pattern will be impressed in it.