Abstract: The present invention is directed to an improved electromagnetic relay having means for eliminating the chatter or bounce of the relay armature upon the movement of the relay armature from its energized position to its rest position, that is, the releasing or returning movement of the relay armature. An armature stopping means is formed by two resilient strips which deflect in response to the returning movement of the relay armature. This deflection of these resilient strips stores energy in these resilient strips for returning the relay armature to its initial rest position. In addition to these two resilient strips, the armature stopping means of the present invention includes means for generating independent counter forces which oppose the deflection of these resilient strips. One of these counter forces is a frictional force generated by the abuttment of a bent flange forming part of each of the resilient strips against rigid mounting elements for mounting the two resilient strips.

Abstract: A system is disclosed for enabling a user to start an engine from a remote location, utilizing a receiver for receiving a command signal from a remote transmitter operated by the user, the receiver generating signals to control operation of the starting system. The system enables the user, from the remote location, to effect selective momentary pumping of fuel into the engine prior to activation of the starting operation, and then to start the engine. The system may include apparatus for maintaining the throttle of the engine substantially open until the engine is started and then closing the throttle to an idling position, with automatic momentary pumping of additional fuel into the engine at predetermined intervals during the running of the engine in accordance with the starting operation. Protective apparatus may be included with the system to prevent activation of the starting operation at any time a manually controlled starting switch has been activated prior to activation of the starting system.

Abstract: A liquid sealing device, for inhibiting passage of liquid between a rotatably mounted shaft and an aperture through which the shaft extends with working clearance, including an annular shoulder projecting from the shaft, means adjacent the shaft formed with a cylindrical bore in which the shoulder is rotatable with working clearance, a helical groove extending around the periphery of the annular shoulder, and closure means for the bore adjacent one end of said annular shoulder, said closure means defining said aperture through which the shaft extends with working clearance, whereby rotation of the shaft in a given direction will cause the helical groove to resist the passage of liquid between the annular shoulder and the bore, and will enable the annular shoulder and closure means to co-operate and thereby inhibit passage through the clearance between the shaft and the aperture of any residual liquid which overcomes the resistance of the helical groove.

Abstract: A visual display for an electronic accounting computer comprising a keyboard and a console. The computer concurrently executes two programs. The console is provided with a changeover switch for selectively allocating the keyboard, the display and the console to one of the programs. As introduction from the keyboard is required, an operator guidance message is displayed. This message is replaced by the response of the operator when it is initiated. If the program not selected by the allocating switch requires attention, an operator call message is developed. The changeover switch is moved to select the program requiring attention. An appropriate message requesting the needed data is displayed, to be replaced by the data as the operator introduces it. The operator then repositions the allocating switch, and the message defining the next required introduction of the original program is displayed, so that data introduction may resume.

Abstract: A method and apparatus for use in electronic computer for altering a stored program. The deletion of an instruction from a main memory storing it results in a compression of the program that included the deleted instruction in order to conserve memory space. The insertion of an instruction in a program stored in a main memory results in the shifting of subsequent instructions stored therein. The memory may be divided into arbitrary sections in response to an instruction enabling the search of a particular subroutine to be shortened. The subroutines in the program which can be reached each have a corresponding program level register. At each subroutine jump instruction the contents of the program level registers are shifted up in order to save the current program level register contents.

Abstract: A small radius conveyor belt for traveling along both straight and laterally curved paths and a conveyor system including such belt is shown. A plurality of rods extend across the belt and are pivotally connected together by tractive central links and inner and outer edge links which are longitudinally expandable and collapsible. The inner links are fully expanded and the outer links are collapsed in the straight path. The inner links collapse and the outer links expand to allow the belt to bend around the curve.

Abstract: A switching arrangement for a telephone system, wherein a subscriber circuit is connected over crosspoints of corresponding switching matrix stages to a junctor circuit feeding said subscriber circuit and receiving the signals thereof, wherein a common link-selecting and marking unit controls the switching of transmission paths as required by a common central control unit, and wherein a subscriber and junctor busy/free marking store marks an available junctor circuit.

Abstract: The invention relates to parachutes, particularly to a parachute which is able to descend at large glide angles relative to the vertical. The parachute has a vertical plane of symmetry when deployed, and is of simple, economic design and novel shape designed to adopt an aerofoil-like cross-section in its plane of symmetry. Slits are provided in the canopy to allow guidance by the parachutist, and a flow detector over the central canopy vent provides forward thrust and boundary layer control over the rear of the canopy. A dividing wall, transverse to the axis of symmetry of the canopy, forms an open chamber behind the leading edge of the canopy, which is filled with air at near stagnation pressure to prevent collapse of the leading edge at large glide angles.

Abstract: A dot-matrix printing device for a printing office machine, comprising a series of striking bars in the proximity of the recording medium movable transversely of the medium for printing dots in different locations. The bars are adapted to be actuated by the armatures of corresponding electromagnets for impressing individual dots of characters. The striking bars are guided in the proximity of the recording medium by a movable guide which effects the transverse movement and each electromagnet has a fixed core and a movable armature in articulated engagement with the corresponding bar. Each armature is provided with an actuating spring which tends to move the armature away from the core of the electromagnet.

Abstract: Apparatus for use in the production of a colored photographic reproduction of a black and white negative which consists essentially of a light-free enclosure, a baffle having an aperture and extending across the housing with means to mount the black and white negative over the aperture, means to carry one or more colored filters and means to generate a pulse of light to illuminate the negative in order that a copy may be taken by a camera suitably mounted.

Abstract: A method of restoring the fluid permeability of the surface of the mold face of a used, ceramic, fluid-release mold body which has become fouled with accumulated silicate material from the plastic clay composition formed by the mold, comprising treating the fouled surface with a fluorine containing acid such as fluosilicic acid, or hydrofluoric acid.

Abstract: A paper and a continuous-form feed system for a desk-top printing electronic calculating machine comprises a platen, pin elements spaced from the platen and rotatable for driving perforated forms, and a guide support for supporting and conveying the forms towards the pin elements. A pair of guide elements disposed at the sides of the guide support guide the continuous forms laterally. A pair of locating elements, associated with the guide elements, position the forms transversly with respect to the guide support and the pin elements. A container, fixed removably to the calculating machine during the use of the forms, comprises a distributor from which the forms are conveyed toward the machine and a collector in which the forms coming from the machine are accommodated.

Abstract: A supported vessel having a number of outwardly directed projections on the side of the vessel which are fixed to the outer end of horizontally disposed webs, the inner end of the webs being supported on a supporting structure, the lower end of which is secured in the ground, the weight of the vessel being transmitted to the webs through the support structure. The invention also claims a support for such a supported vessel.

Abstract: A card clothing clipped top comprised of a rigid base with a longitudinal groove extending lengthwise adjacent each side thereof and a pair of clips for attaching the top to a flat in a card clothing machine. Each clip has a curved upper portion which engages one of the grooves in the base of the top and a lower portion adapted to engage the bottom surface of the flat. An intermediate portion of the clip connects the upper and lower portions thereof and is provided with a plurality of inwardly extending tabs for engaging recesses in the bottom surface of the base.In manufacturing the clipped top, recesses are formed in the bottom surface of the base along the sides thereof. The curved upper portion of each clip is then engaged in one of the grooves and a plurality of tabs may be punched out of the intermediate portion and forced inwardly into engagement with the recesses to firmly secure the clips to the base.

Abstract: The safety barrier comprises a longitudinally extending rail rigidly engaged by support means disposed at intervals along the rail. A cable under tension is disposed proximate the rail and extends therealong so that the rail and cable combine to prevent failure of the barrier upon being impacted. In a preferred embodiment, the rail is cylindrical, the cable is disposed within the rail, and the cable is supported within the rail by a holding means such as grout. The barrier is constructed so that the grout may be inserted into the rail after the cable is in place and under tension. Moreover, in order to facilitate easy replacement of a damaged section, the rail may be removed from about the cable without replacing the cable and the cable is sheathed so that a damaged cable may be replaced without disassembly of the entire barrier.

Abstract: A method for monitoring the sequential order between successive code signal groups in program controlled data processing systems is described. Each code signal group is supplied with an additional check character, e.g., a parity bit, derived from the succeeding code group. Consistency is tested by comparing the check character carried in a given code group and that derived from the following code group.

Abstract: A method of measuring the level of an aminoglycoside antibiotic, such as gentamicin, tobramycin or amikacin, in blood serum or plasma comprising incubating an aliquot of blood serum or plasma from a human patient being treated with an aminoglycoside antibiotic in a urea-containing culture medium with a susceptible strain of an adaptive urease producing microorganism corresponding to Proteus rettgeri JLI 03, ATCC No. 31168.

Abstract: Nitroglycerine inclusion compound in cyclodextrin is obtained by contacting cyclodextrin with nitroglycerine in the presence of water. The inclusion compound is very stable as a quick effective drug for treating angina pectoris and easy in handling.

Abstract: A sample of material to be tested for the presence of biologically active agents, such as bacteria, is introduced into a sealable container partially filled with a culture medium; the remainder of the container being filled with a culture gas, the container and its contents are subjected to conditions conducive to biological activity for a predetermined period sufficient for fermentation of the medium to produce at least one gaseous product after which the character of the culture gas in the container is determined and compared to the initial character of the culture gas in order to detect any differences caused by changes in the composition of the culture gas indicating the presence or absence of biologically active agents in the sample.

Abstract: A method and apparatus are described synchronizing oscillators at the network junctions in a pulse code modulation (PCM), time division multiplex (TDM) telecommunication network. In each network node pulse trains of clock pulses are received via incoming lines, and corresponding clock pulse trains are produced in the network node in accordance with the node's clock frequency division factor. The received and locally produced pulse trains are phase-compared, and a control signal resulting from the comparison is used to control the frequency of the clock oscillator in the network node. In each network node of a first network which has a direct line connection to a network node in a second network a phase comparison takes place between the two networks, and the result of the latter comparison is compared with the result of an intra-network comparison. The result of the latter comparison is used to adjust the line clock frequency of a given network.