baber/WOPTO huggingface dataset:
Patent GB-986937-A (GB)
Title: Improvements in and relating to vehicle control
IPC: B60L15/38
Filed: 1962-02-15
Abstract: 986,937. Automatic strain control. GENERAL SIGNAL CORPORATION. Feb. 15,1962 [March 3, 1961], No.5815/62. Drawings to Specification. Heading G3R. In a group of directly coupled vehicles which includes forward and rearward vehicles driven by prime movers, the force between two coupled vehicles automatically controls the rearward vehicle to maintain the force within predetermined limits. As described, an auxiliary dieselelectric locomotive is arranged in an intermediate position along a railway train drawn by a main locomotive at the front so that the number of cars behind each locomotive is proportional to the power of the locomotive. The diesel throttle and the electric motor dynamic braking of the auxiliary locomotive are automatically controlled in dependence on the force in the coupling in front of the auxiliary locomotive so as to maintain that force near zero. A direct voltage corresponding to the force in the coupling is produced by a strain gauge arranged in a bridge circuit and applied periodically through an integrator circuit to control transistor operated relays. The polarity of the voltage depends on whether the coupling is in tension or compression and is reversible by a relay responsive to the direction of travel of the train. The arrangement is such that voltage of a polarity calling for an opening of the diesel throttle of the auxiliary locomotive to reduce the force in the coupling to zero causes operation of a number of relays corresponding to the magnitude of the force, so that an electromagnetic stepping switch is actuated to adjust the diesel throttle in steps to a corresponding position under electrical control. The adjustment is one step at a time unless the force is near zero. Relays energized in dependence on the output of a tachometer generator applied through frequency responsive networks ensure lower throttle settings, when speed is low during starting, to avoid wheel slip. Voltages of reverse polarity from the strain gauge circuit call for braking of the auxiliary locomotive and cause operation of further relays to adjust dynamic braking resistances associated with the electric driving motors to restore the force in the coupling to zero. Voltages dependent on speed derived from the tachometer generator, are applied to the main relay control circuits to render them more sensitive to variations of force in the coupling at higher speeds. In the event of reduction of air pressure for braking, e.g. if the main locomotive is braked or a section of the train becomes uncoupled,a pressureoperated relay sets the auxiliary locomotive throttle to an idling position. Application to automatically controlling the force between other vehicles of the train is referred to.
Patent GB-1407652-A (GB)
Title: Low friction high load bearing compositions
Inventor: LINDLOF JAMES A
IPC: C10N40/02
Filed: 1973-02-06
Abstract: 1407652 Self-lubricating polymer compositions MINNESOTA MINING & MFG CO 6 Feb 1973 [7 Feb 1972] 5887/73 Heading C3R Self-lubricating polymer compositions comprise 100 parts by weight of a thermoset polyisocyanurate polymer having sufficient isocyanurate cross-linking groups therein such that the polymer retains at least 60% of its room temperature hardness after 1 hour at 350‹ F. and homogeneously dispersed therein, from 1 to 40 parts by weight of an inert lubricant which is a non-volatile liquid in at least part of the temperature range from 100‹ F. to the degradation temperature of the polymer. Preferably the polyisocyanurate polymer also contains urethane groups and is prepared by reacting a polyisocyanate and a polyol in the presence of a catalyst which is capable of trimerizing isocyanate groups. The polyisocyanate and polyol may be prereacted before trimerization takes place. Suitable lubricants are low melting thermoplastic polymers such as polyethylene, petroleum based oils and greases, silicone oils, waxes, particularly paraffin waxes with an inherent coefficient of friction of 0À08 to 0À12, and high molecular weight polyether glycols. The compositions may be used in the production of machine parts, e.g. bearings, cams and gears.
Patent GB-177672-A (GB)
Title: Improvements in and relating to dirigible headlights for motor vehicles
IPC: B60Q1/124
Filed: 1921-02-21
Abstract: 177,672. Bavor, J. J. Feb. 21, 1921. Vehicle lamps, directing.-In means for directing motor-vehicle head-lamps from the steering- gear, the lamps are mounted in bearings carried on a longitudinally-adjustable support comprising telescopic members 7, 9 held in the adjusted position by a set-screw 10 and each terminating in a curved plate adapted to be secured to the mudguard so as to enable the mechanism to be used on vehicles of various sizes. The crank-arms 23 secured to the lower ends of the rotatable lampstems are also connected by a telescopic coupling- rod 20, 21. A second arm 19 is secured to the lower end of one of the lamp-stems and is connected to an adjustable operating-link 19' pivotally-connected to an arm 16 clamped to the steering-post 6.
Patent GB-869940-A (GB)
Title: Apparatus for storage of radioactive needles
Inventor: KEMP LLOYD ASQUITH WINSTON EWA
IPC: G21F5/015
Filed: 1959-02-20
Abstract: 869,940. Storing radioactive needles. HOBSON Ltd., H. M. Jan. 28, 1960 [Feb. 20, 1959], No. 5964/59. Class 98(1) [Also in Group XL(a)] A storage safe for radioactive needles (each in a separate container) comprises at least one chamber in which the containers are stored in a longitudinally extending, vertically superposed stack, an inlet passage down which the containers can be slid endwise to fall into the chamber, and a slider operable from the front of the safe for withdrawing the lowermost container. The needle containers are, for convenience, all the same length, irrespective of the length of the needle, and of one of two diameters. Three different types of container are shown: type A (Fig. 1), in which the container is a stainless steel tube 20 closed at one end, and intended for use with a needle 23 which projects slightly from the other end; type B (Fig. 5), which is open at both ends but has one end closed by a movable plug 26, and intended to hold a needle whose end is just within the open end of the tube; and type C (Fig. 6) which is open at both ends, and holds a needle which is located well within the tube. The safe itself is a lead-lined casing, holding a battery of storage units such as 30 (Fig. 12). Within each unit is protectively located the storage chamber 32, which is just long enough to accommodate the length of the needle containers 20, these being stacked one above the other. Type A containers are shown in Fig. 12. The containers are introduced through a thimble 34, and slide down an inclined passage 31 into the storage chamber 32. A gate arrangement 35 (Fig. 13, not shown) ensures that the container becomes horizontal and correctly aligned before falling into the chamber 20. In the base of the chamber is a slide 42, carrying at its rear end a pawl 44. When the slide is pulled forward, the tooth 45 of the pawl engages against the lowermost needle container 20, and pulls that forward also, allowing the next container to fall into position. When the slide has been pulled forward sufficiently, the container falls into a magazine, and the slide is retracted in readiness for the next extraction. Each magazine may carry number scales, to indicate the number of containers in the magazine and the number left in the chamber. A battery of such storage units 30 may be arranged side by side, like books on a shelf, each with its own magazine below (Fig. 9, not shown). The front part of the magazines are so arranged that the projecting end of the needle may be gripped to draw it out of its container. The storage chambers may be ventilated by suction through an exhaust line. The slide mechanism for withdrawing the containers, and extracting the needles therefrom, has to be somewhat modified for type B containers (Figs. 15-18, not shown) and also for the type C containers (Figs. 19-24, not shown).
Patent GB-1411483-A (GB)
Title: Pulse generator
IPC: B60T8/171
Filed: 1973-02-07
Abstract: 1411483 Measuring angular velocity electrically ITT INDUSTRIES Inc 7 Feb 1973 [7 Feb 1972] 6047/73 Heading G1N In apparatus for determining the angular velocity of a shaft, the latter is provided with a toothed wheel, 14 Fig.8, which rotates with the shaft and is associated with a fixed pick-up element 20 comprising a magnetic E-shaped core whose outer limbs 22, 24 are the same width as a tooth on the wheel 14 and are spaced so that when one limb faces a tooth the other limb faces a gap, whereas the centre limb 23 is twice the width of a tooth. An energizing winding is wound on limb 23 and each half of a secondary winding is wound on one outer limb 22, 24 and connected in series opposition. Thus, as the wheel 14 rotates, the signal from the secondary winding on pick-up 20 is, as shown in Fig. 13, the carrier frequency, sinusoidally amplitude-modulated, with successive drops in phase and out of phase with the supply to the primary winding. The sinusoidal energizing A.C. for the primary winding, 47 Fig.9, of pick-up 46 is derived from a square wave generator 36,  whose output 37 is also differentiated at 38 to  provide positive and negative gating pulses 54, 55 for two AND gates 40, 41, whose outputs set and  reset a flip-flop 39 with each change in the phase of the carrier frequency signal. The circuitry components ensure that the gating pulses 54, 55 coincide with the peak values of the carrier frequency oscillations in secondary winding 48. The threshold switching levels for gates 40, 41 are sufficiently high for them to ignore random noise pulses. The frequency of the square wave output from flip-flop 39 is directly proportional to the angular velocity of the shaft.
Patent GB-1399341-A (GB)
Title: Hyperbolic navigation equipment
IPC: G01S5/00
Filed: 1971-03-04
Abstract: 1399341 Radio navigation systems; transponders UNIVERSITY COLLEGE OF NORTH WALES 5 June 1972 [4 March 1971] 6059/71 Headings H4D and H4L A position determining system comprises at least three radio navigation transmitters radiating signals of the same frequency in fixed phase rotation in a cyclic sequence, only one navigation transmitter radiating at one time, a conversion equipment at a location to be determined, comprising a receiver for the radio frequency signals, a frequency converter to convert the received signals to another frequency while preserving their phase relation and a transmitter for transmitting the converted signals, and remote from said location, a receiving station for receiving the converted signals and determining their phase relationship. As described; the equipment shown in Fig. 1, is mounted on a buoy the position of which is plotted as it drifts to determine tidal effects. The received signal is filtered at 2 and supplied to a frequency-changer 5 cooperating with a crystal-controlled local oscillator 6. The resultant output of around 2kHz is supplied via a bandpass filter 7, variable attenuator 8, linear amplifier 9 and high pass filter 10 to modulate a transmitter 4 transmitting on a frequency differing from that of the input. A portion of the output of filter 10 is rectified at 11 and via a low pass filter 12 controls the attenuator 8 to maintain the signal amplitude substantially constant. In a modification, Fig. 2 (not shown), the a.g.c. circuit is replaced by a limiter-filter arrangement. At a receiving station the signal is converted back to its original, frequency but having phase relationships as received at the buoy and may be applied to a conventional position plotter.
Patent GB-1510298-A (GB)
Title: Artificial hands
IPC: A61F2/58
Filed: 1977-02-14
Abstract: 1510298 Artificial hand with motorised gear drive MESSERSCHMITT - BOLKOW - BLOHM GmbH 14 Feb 1977 [25 Feb 1976] 06121/77 Heading A5R An artificial hand comprises a thumb and at least one finger fitted with respective gears 12 that are driven by a worm gear 10 operated by a reversible, geared motor 5 and variable gearing 8. The variable gearing 8 comprises a spring biassed double crown clutch 16 which is engageable with either of gears 19, 20 depending on the movement of a slidable and rotatable shaft 17 that is displaced according to the energisation or de - energisation of an electromagnet 15. The worm gear 10 is connected to the shaft 17 via a sleeve 22 and a slidable hexagonal head 21.
Patent GB-566509-A (GB)
Title: Apparatus for treating swill or food refuse
IPC: A23N17/00
Filed: 1943-04-17
Abstract: 566,509. Digesters..STEVENSON, A. April 17, 1943, No. 6162. [Class 64 (i)] A digester for treating swill or food refuse comprises a jacketed container A provided with a combined inlet and discharge port C and a perforated false bottom R, steam from a boiler S being admitted to the jacket B and thence through a handoperated valve V to the container, and the condensate &c. therefrom passing through the strainer R and being discharged through a cock U. The digester is rotatably mounted on end frames D, E, and a lever F is provided to lock it in the charging and emptying positions, that is, with the port C directed upwardly and downwardly respectively. An axially-disposed spindle K, having agitating arms L and rotatable by a handle M, is also provided.
Patent GB-559742-A (GB)
Title: Process of recovering products from fermentation residues
IPC: C12P7/20
Filed: 1942-05-08
Abstract: 559,742. Distilling fermentation slops; spray evaporators. U.S. INDUSTRIAL ALCOHOL CO. May 8, 1942, Nos. 6258, 6259 and 6260. Convention dates, Aug. 29, 1941, [Class 32] Discrete particles capable of retaining their original form on exposure to atmosphere humidity and volatile constituents e.g. glycerine, glycols, lactic acid are recovared from the distillery slops and residues formed in the ethyl alcohol-glycerin fermentation process by atomizing the slop into a stream of inert gas at a temperature not below 900‹F., separating the dried particles from the gas stream while the temperature is above that at which condensation of volatile products can occur and subsequently recovering the volatile products by cooling the gas stream. The cooled gases may be mixed with hot combustion gases free from oxygen and used again in the process. Slop preheated in a heater 10 is fed to a feed tank 12 from which it passes to rotating atomizing disc 14 in a chamber 16. Hot combustion gases produced in a chamber 40 are fed through line 18, 20 to the chamber 16 so as to flow spirally through the chamber on both sides of the disc 14 the gases being first recirculated by a pump 24 and line 22 and then withdrawn through line 26 to a cyclone separator 30 where the solid particles are removed. The gases then pass through a cooling tower where the most of the glycerin is recovered by washing with a spray of water, circulated through a cooler 34, the cooled gases being recirculated through line 38 and an electric precipitator 37 to remove residual glycerine. The dried particles may be used as fertiliser.
Patent GB-1136821-A (GB)
Title: Improvements in or relating to numerical control systems
Inventor: TINKLER KENNETH
IPC: G05B19/39
Filed: 1965-02-13
Abstract: 1,136,821. Programmed control of position. TELEHOIST Ltd. May 5, 1966 [Feb.13, 1965], No. 6305/65. Heading G3N. A numerical control system for positioning an element relatively to an earlier or datum position comprises a digital control section which is operative during most of the measured movement and an analogue control section which is operative during final positioning. As shown, a lead-screw is driven by an hydraulic motor 2, the speed of which is determined by a controller 3 supplied with hydraulic fluid through a solenoid valve 5 from a pump 4. The valve 5 cuts out the controller 3 and brings in a slow-speed restrictor 6. Driven from the other end of the lead-screw is an induction transducer 8 and a photo-electric pulse producing device 9 which, through a pulse shaping circuit 20, drives a stepping motor 10 coupled to the rotor of the transducer. The pulses from the circuit 20 are also fed to counter 45 having a bank of manual switches 46, set up for cutter offset, which, when empty, transfers the pulses by an electronic switch 21 to count down a displacement counter 23 set up by manual switches 24. At a first predetermined count during emptying the counter 23 provides a signal which actuates the solenoid valve 5 to bring into operation the slow-speed restrictor 6, and at a second predetermined count an electronic relay 19 disconnects the pulsing device 9 from the circuit 20 and connects it to a circuit 46 which provides a pulse train which rapidly empties the counter 23 and positions the stepping motor in advance of the lead-screw. At zero count, a digital to analogue change-over switch 42 renders operative relay contacts 40 and isolates the stepping motor 10. The hydraulic motor is then actuated through the contacts 40 by a relay 38 responsive to the positional signal from the transducer 8 through a demodulator 37. A manually set potentiometer 43 provides fine adjustment of the final position. In a modification, a high-speed resetting counter 50 is connected between a gate 52 and a two-way switch 51 which feed the pulses from the device 9 to cycle the counter 50 and countdown the displacement counter 23 until the table is within a short distance from the final position when the pulses are routed to the stepping motor 10 instead of the counter 50. The count in counter 23 is set through binaryto-decimal decode devices 26 and stores 28 by uni-selectors 27 responsive to a tape-reader 25. The tape-reader additionally sets the count in the off-set counter 45 and the speed of the hydraulic motor 2 by adjustment of the controller 3.
Patent GB-734413-A (GB)
Title: Improvements in or relating to apparatus for transferring articles to or from crates and containers
IPC: B65B21/18
Filed: 1952-03-12
Abstract: 734,413. Filling and emptying bottles &c. crates. U.D. ENGINEERING CO.; Ltd., TAYLOR, J. C., and ARBER, R. S. P. May 29, 1953 [March 12, 1952], No. 6472/52. Class 94 (1). [Also in Group XXX] Apparatus for transferring articles such as bottles to and from crates or containers is operated by fluid pressure and comprises a rising and lowering crate support 122 and a laterally traversing gripping head 115 with grippers 116 actuated to grip and release the bottles &c. at or near the limits of the lateral travel of the head, the fluid pressure means being controlled by valves either directly mechanically operated or operated by fluid relays mechanically controlled. An endless chain conveyer, running in guides 117, 119 feeds the filled crates on to the support 122, the crates being guided by adjustable plates 165, and a stop 164 pivoted on the platform being raised by a pneumatic cylinder 17a. Another stop associated with the conveyer holds back oncoming crates. A gripping roller 129 also mounted on the platform 122 is operated by a cylinder 16 to grip the crate as the platform rises. The platform 122 is raised by a pneumatic cylinder 121 until the bottle necks enter the open grippers 16 which then close, the platform is lowered with the crate and the gripper head 115 traversed to drop the bottles on to a transfer conveyer (not shown). Each gripper 116 comprises a cylinder 15, Fig. 4, with a piston 134 slotted at 137 to take the tails 147 of pivoted gripper jaws 146 which are closed as the piston descends. The travel of the piston and thus of the jaws is adjustable by a screw stop 141. The grippers are fixed to a plate adjustable in the gripper head 115 by four screw posts at the corners simultaneously rotated by a knob 116 to alter the height of the grippers. The gripper head 115 is traversed on guides 114 by a pneumatic cylinder and the various pneumatic devices are operated by valves controlled in sequence, a cycle being initiated by a crate arriving on the platform or by the operator. The bottles &c. are deposited on a conveyer 117a, Fig. 7, which may carry them to a washing machine. If the bottles build up on the conveyer a cam 160 causes the bottles to actuate through an arm 163 a valve 162 to stop the machine. By reversing the cycle bottles, marshalled on the conveyer 117a so that their positions correspond to the spacings in the crates,.can be loaded into the crates. Specification 704,575 is referred to.
Patent GB-938744-A (GB)
Title: Improvements in and relating to aiming systems
IPC: F41G5/22
Filed: 1960-02-24
Abstract: 938,744. Measuring bearings. OFFICINE GALILEO S.p.A., and N. RICHIARDONE. Feb. 24, 1960 [Feb. 25, 1959], No. 6499/60. Drawings to Specification. Class 97 (2). In a device for mounting on an oscillating platform, such as the deck of a ship, for sighting on a target which it is assumed moves on a rectilinear course at constant velocity, a control stick is moved to initially align the sighting device on the target and in so doing it introduces the integration constants -which are required and thereafter the sighting device automatically follows the target regardless of movements of the ship, the control stick being merely used to introduce slight corrections due to inaccuracies in the equipment or variations in speed and direction of the target. Three gyroscopes are employed to sense movement of the ship about mutually perpendicular axes and these signals are employed to correct the.movements of the sighting device. The Specification formulates equations relating to the required motion of the sighting device and describes diagrammatically equipment for carrying them into practice.
Patent GB-572624-A (GB)
Title: Improvements in and relating to the winding of webs
IPC: B65H19/22
Filed: 1944-04-06
Abstract: 572,624. Winding webs. WOOD NEWSPAPER MACHINERY CORPORATION. April 6, 1944, Nos. 6510 and 6511. Convention dates, April 10, 1943, and July 16, 1943. [Class 100 (i)] In winding successive rolls of web material 6 as delivered from a paper-making or like machine, the web is led over a winding-drum 11 and when a roll 38, wound on a core 22 carried by a pair of bifurcated arms 19, is full, the winding is transferred to a core 21 mounted in bifurcated arms 13. To effect this, the core 21 is moved into contact with drum 11 and brought up to the speed of the web 6, and a layer of adhesive is applied to the web by means of a sprayer controlled by a valve 34, Fig. 1, or adhesive is applied to the core 21 directly by a sprayer controlled by a valve 47, Fig. 6. When the web adheres to the core 21 it is carried round thereby and is severed by a knife 25, which is mounted in arms 26 controlled by a screw 28 so as to lie close to the web. By means of the arms 26, the knife can be moved away to the position shown in Fig. 3, when the arms 13 are moved counter-clockwise to transfer the new roll to the bifurcated arms 19 after removal of the wound roll. To effect this, the arms 13 are released from the control of spring- pressed plungers 15, each having a pin engaging a slot 16 in an arm 13 to maintain the arms 13 in the position shown in Fig. 1. The adhesive applied to the web may be the self-sticking kind described in Specification 555,707, and in this case the cores 21 are also coated with a layer of the adhesive. This adhesive may be passed through a drying chamber 8, and it is applied in such manner as to facilitate the renewal of webs fed from the rolls to printing- machines &c., the adhesive being in patterns as described in Specification 555,707.
Patent GB-289215-A (GB)
Title: Improvements in loom shuttles
IPC: D03J5/08
Filed: 1927-03-09
Abstract: 289,215. Fell, F. W. March 9, 1927. Shuttles.-A base piece m having a spindle k on which the spring jaws a, bare pivoted is provided with indents for receiving the end of the spindle h and with a cut-away part 4 which receives a pin s taking into a groove in the spindle. The base piece fits in a groove in the shuttle and is further secured by pins p, p'. The usual cross pin t is provided.