baber/WOPTO huggingface dataset:
Patent GB-1525967-A (GB)
Title: Apparatus for logging well bores
IPC: E21B47/12
Filed: 1975-12-03
Abstract: 1525967 Selective signalling TEXACO DEVELOPMENT CORP 3 Dec 1975 [26 Dec 1974] 49610/75 Heading G4H A well-bore logging tool includes a neutron generator controlled by a decoder. The tool can be lowered down a well-bore on a triaxial (or armoured coaxial) cable having a centre conductor, an inner shield conductor and a grounded outer armour layer. Control frequencies sent down the shield conductor are recognized by the decoder in the tool to increment (or decrement) the power supply voltage supplied to the target of the accelerator tube constituting the neutron generator (to vary the neutron output) or set one of five latches. One latch enables an ion source for the tube to be switched on in response to one of four pulse trains selected by the other four latches respectively, these pulse trains differing in p.r.f. and, in general, in pulse duration. There is a gap in one of these pulse trains for background gamma ray measurement. A gamma ray detector (photomultiplier tube and detector crystal) in the tool sends data pulses up the centre conductor of the cable, positive and negative sync pulses (relating to the gap for background measurement and the neutron bursts respectively) being sent as well. At the surface, the data pulses are fed (after a.g.c.) to a memory or one or three linear gates, depending on switch settings, the linear gates feeding the memory. The linear gates are enabled by respective "digital gate" units which produced pulses of manually-selected duration and initiation time in response to the sync pulses, switches being provided to select which sync pulses go to which digital gates. The memory feeds a computer which feeds a recorder. Power is supplied to the tool over the centre conductor and the shield conductor. Measurements of thermal neutron decay time and carbon/oxygen ratio are possible, as a function of depth. The latches are reset by interrupting the power supply.
Patent GB-1115472-A (GB)
Title: Improvements in and relating to tape handling devices
Inventor: RANSON JOHN BRYAN
IPC: G11B15/43
Filed: 1963-12-17
Abstract: 1,115,472. Feeding record tapes. ASSOCIATED AUTOMATION Ltd. 15 Dec., 1964 [17 Dec., 1963], No. 49699/63. Heading G5R. Tape from a supply reel S, Fig. 1, passes in S - configuration round two counter-rotatable capstans A, B, one of which is driven during operation, the tape forming an angle of lap with each capstan of not less than 180 degrees. The tape is initially threaded between the two capstans with capstan B in position B<SP>1</SP>. Capstan B has a higher coefficient of friction with the tape than capstan A, and the arrangement is such that the tape tension T2 between the supply reel and the capstan system is greater than the tension T1 applied to the tape beyond the capstan system. A bi-directional tape transport, Fig. 2, comprises two such capstan systems with means for selectively rendering freely rotatable one capstan of each system, tape reservoirs R2, R3 with photo-electric sensors P2, P3 and guides G2, G3, and a tape reader TR. To reduce tape creep, the tape passes over a pin or roller P adjacent to capstan B, Fig. 1.
Patent GB-1096046-A (GB)
Title: Improvements in or relating to fuel cells
Inventor: SHORT RICHARD TERENCE
IPC: H01M8/06
Filed: 1964-12-08
Abstract: 1,096,046. Fuel cells. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Dec. 1, 1965 [Dec. 8, 1964], No. 49896/64. Heading H1B. [Also in Divisions CL and G3] When the hydrogen pressure has built up to a certain value, the purified hydrogen from the reactor of Fig. 1 is fed into heat exchange with the electrolyte and along line 36 to the fuel cell. An initial venting procedure automatically takes place. The fuel cell 50 comprises eight blocks of cells which on starting are vented in pairs in sequence for about 1 minute per pair. The vent valves 51 are actuated by the contacts of a uniselector which is stepped under the control of a timing circuit (67) (Fig. 3, not shown). At the end of this sequence the main motor (64) driving the electrolyte pump 53 and a starter motor (64A) driving air pump 59 are connected to an auxiliary battery (63) to run at low speed. When the fuel cell reaches say 80 volts a voltage sensor (70) connects the motors and other auxiliary equipment to the fuel cell and connects the auxiliary battery to be charged by the fuel cell. The venting timing circuit (67) is then switched so the cell vents at its normal rate, i.e. one block of cells for six seconds every two minutes. The electrolyte, whose storage tank 34 is in heat exchange with the hydrogen supply, has its temperature maintained constant by a fan 55 cooling a radiator 54, the fan being intermittently magnetically clutched to electrolyte pump 53 under the control of a thermostat circuit (72). The supply voltage to the auxiliaries is automatically maintained constant by a voltage regulator (see Fig. 3). When the plant is shut down, the electrolyte from the tank 34 floods the cells so that when restarted impurities such as potassium carbonate are washed away. The voltage of individual cell blocks is monitored by means of the uniselector switch. The cells may be vented manually.
Patent GB-1110540-A (GB)
Title: Fluid pressure brake system
IPC: B60T13/36
Filed: 1966-11-08
Abstract: 1,110,540. Fluid-pressure brakes. BENDIXWESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. 8 Nov., 1966 [15 Nov., 1965], No. 49922/66. Heading F2F. In a compressed air braking system for road vehicles of the kind having, in addition to the service brake valve 18 which supplies air from a service reservoir 12 to service chambers of double-diaphragm actuators 26, an emergency brake valve supplying air from an emergency reservoir 36 to emergency chambers of the actuators, a controlled check-valve 52 is provided having its inlet 50 connected to the line 48 from emergency brake valve and its outlet 56 connected to the emergency ports 34 of the actuators, the valve 52 also having a piston (66, Fig. 2, not shown) which is acted on by the pressure in the emergency reservoir 36 via line 42 and a control port 54, against the action of a spring (68), so that a valve-actuating member (74) carried by a plunger (70) integral with the piston normally engages and holds open the check valve (76) to permit both application and release of air to and from the emergency brake chambers, but allows the check valve to close so as to retain air in the emergency brake chambers when pressure in the emergency reservoir falls below a predetermined value.
Patent GB-992105-A (GB)
Title: Improvements in apparatus for making electrical connections
IPC: H01R43/027
Filed: 1963-12-18
Abstract: 992,105. Making electrical connections. AMP Inc. Dec. 18, 1963 [Jan. 9, 1963], No. 49928/63. Heading B3A. Apparatus for pushing a clip 50, Fig. 8, on to a terminal post 96 to clamp a conductor C against the post comprises a plunger 24 for pushing the clip from a transfer member 42, over a guide member 52 and on to the post 96, the transfer member having a clip holder 44 at one end and being movable by means 62 between a position in the path of the plunger and a loading position in which means 82 load a clip on to the holder 44. As shown, the apparatus is hand-held and operated by a double-acting piston in a cylinder 2 to which compressed air is fed from a spoolvalve in a housing 8 under the control of a trigger 10. The piston-rod 12, Fig. 4, is secured to a block 32, Fig. 5 (not shown), connected by a screw 30 to a plate 28 which is connected to the plunger 24 and slides along the frame 14 of the apparatus. The screw 30 also passes through a cam block 74 which operates a lever 62 for moving the transfer member 42 and also a feed slide 86 on which a tooth 82 engaging a strip 78 of interconnected clips 50 is supported, the tooth 82 being urged clockwise by a spring. A flat spring 91 with a turned-down end prevents reverse feeding of the strip 78 upon return movements of the slide 86 which are effected by a spring 88. A bifurcated pivoted member 98 biased by a spring 104, locates the terminal post 96 in a recess in the guide member 52. The member 98 has a conical opening 110 through which the conductor may be threaded into a transverse opening 51 in the member 52 to which it is secured by the end 122 of a clamp 120, Fig. 6, the clamp having previously been displaced against the action of its spring 116. Operation.-The trigger 10 is operated after the conductor is clamped in the opening 51 and the terminal post 96 in the guide recess. When the plunger 24 has pushed the clip 50 off the holder 44 of T-section, this is lowered to the loading position, Fig. 4, by contact between the cam block 73 and the lever 62, before the block 73 engages a projection 92 on the slide 86 for advancing the strip of clips. Upon return of the lever 62 and cam block 73, the rising transfer member 42, coacting with an upper block 124, shears the next clip 50 from the strip 78, which is fed from a reel (not shown) on a bracket 76. If an insulated conductor is used, the insulation will be stripped during the forward stroke of the plunger, as described in Specification 956,118 to which reference is made.
Patent GB-1361171-A (GB)
Title: Electronic tachymeter
IPC: G01C3/30
Filed: 1972-10-30
Abstract: 1361171 Surveying instrument WILD HEERBRUGG AG 30 Oct 1972 [21 July 1972] 50008/72 Heading H4D An electro-optic surveying instrument com prises an optical or possibly microwave distance finder unit 28 mounted to move with an optical transit unit 31, the distance finder unit 28 and transit unit 31, being mounted for rotation about a vertical axis on fixed support 8, 9, the bulky electronics unit 12 associated with the distance finder unit 28 being carried in a housing having a central hole and which is free to rotate with the units about the vertical shaft portion of support 8, information carrying leads from the unit 28 to the electronics unit 12-thereby not being subjected to any pulling. The support 8 is mounted on a base 1 having various centering and levelling adjustments and is fixed after said adjustments have been made, by control 6. The support 8, complete with electronics unit 12 can be carried using handle 11. The electronics unit 12 comprises a plurality of printed circuit boards 42 enabling easy replacement of faulty parts. The hole 44 in the support is used for plumbing purposes. The lead wires comprise electrical wiring or light guides. The distance finder unit 28 may use an amplitude modulated luminescent diode-preferably infra-red- and a photodiode detector. Oscillator, amplifier and mixer circuits may also be housed in unit 28.
Patent GB-1401758-A (GB)
Title: Means for use when stopping-off gas mains
IPC: F16K7/10
Filed: 1971-10-28
Abstract: 1401758 Stopping flow in pipes CHARLES BEAGRIE & SON Ltd 10 Oct 1972 [28 Oct 1971] 50138/71 Heading F2P A device for use with an inflatable bag to stop flow in a pipe, e.g. in repairing a gas main, comprises a flexible, elongate guiding member 10, secured to a support member 12, to which the bag is secured in a collapsed condition to facilitate location of the bag in the pipe prior to inflation. As shown, the flexible member 10, which may be a leaf spring, is curved so that, when the device is entered through a hole in the pipe wall, the member 10 contacts the pipe wall opposite the hole and bends along the pipe. The bag (B), (Fig. 3, not shown), is secured to the member 10 by elastic bands. The flexible member is riveted to a channel support member 12 carried on a sealed piston 22 slidable in a housing 34. A lower portion 36 of the housing is threadedly received in the hole in the pipe wall and a washer 24 prevents gas leakage into the housing. The bag is connected to an inflation tube 28. After correct location in the pipe, the bag is inflated adjacent previously introduced separate support means (S) (Fig. 3, not shown).
Patent GB-1071549-A (GB)
Title: Fastener
Inventor: DAVY JOHN RAYMOND
IPC: F16B5/02
Filed: 1965-11-25
Abstract: 1,071,549. Self-tapping screws. DAYTON PERFORATORS Inc. Nov. 25, 1965, No. 50141/65. Heading B3N. [Also in Division F2] A fastener assembly comprises a self-tapping screw (17), and a plate (22), Figs. 2 and 4 (not shown), the plate having a triangular shaped aperture (11), Fig. 1 (not shown), into which the screw (17) is screwed. The body portion (18) of the screw between the threads (19), is guided by the faces (12-14) in the aperture, and the pitch of the thread is such that between each thread convolution, portion (18) is at least equal to the thickness of plate (22). The corners of aperture (11) may be rounded, Fig. 1 (not shown), or flat, Fig. 3 (not shown).
Patent GB-1408355-A (GB)
Title: Baby exerciser
IPC: A63G9/14
Filed: 1973-10-30
Abstract: 1408355 Baby jumper JOLLY JUMPER PRODUCTS OF AMERICA Ltd 30 Oct 1973 [31 Jan 1973] 50483/73 Heading A6M A baby exerciser includes a harness 46 which is suspended from a horizontally extending elastic member 28 by a hanger 32 and spacer bar 44 which can rotate about a vertical axis. As described the elastic member 28 consists of an elastic cord having a lug 30 at each end, the lugs 30 being pivoted to a frame 12 by bolts 20. The frame 12 consists of two U-shaped members 16 joined together by bolts 20 and brace plates 26, and four legs 22 detachably mounted on the frames 16 by spring loaded catches 24. A swivel connector 34 is mounted on the elastic cord 28 and includes an eyelet 36 which can slide along cord 28 and a self locking hook member 38. A harness 46 is connected to the swivel connector 34 by means of cords 48, spacer bar 44, cords 42 and a chain 40. In use a child may bounce up and down in direction of arrow A and may turn about the vertical axis in direction of arrow B. In a modification (not shown) the elastic cord 28 may be replaced by a coil spring.
Patent GB-1130385-A (GB)
Title: Improvements in bituminous compositions
Inventor: BROWN THOMAS WILLIAM
IPC: C08L95/00
Filed: 1966-11-11
Abstract: 1,130,385. Rubberized bitumen. ESSO RESEARCH & ENG. CO. 11 Nov., 1966, No. 50585/66. Heading C3N. Rubberized bitumen is prepared by forming a dispersion of rubber in a liquid hydrocarbon at 85-110‹ C. and incorporating the dispersion in bitumen at 110-130‹ C. The hydrocarbon may be an aromatic extract, e.g. a phenol, furfural, or SO 2  petroleum extract; or lubricating oil side stream. The rubber may be butyl rubber, e.g. 2-20 wt. per cent based on the composition. The rubber before dispersion is preferably in small particles, formed e.g. by cutting sheet or block rubber or using crumbs.
Patent GB-1273730-A (GB)
Title: An axle or shaft and a wheel rotatably mounted thereon
IPC: B60B37/10
Filed: 1970-10-26
Abstract: 1,273,730. Securing vehicle wheel-hubs to axles. KONINKLIJKE NEDERLANDSCHE HOOGOVENS EN STAALFABRIEKEN N.V. 26 Oct., 1970 [27 Oct., 1969], No. 50790/70. Headings B7C and B7L. A wheel 1 is rotatably mounted on an axle 2 by means of a bearing assembly which is engaged against a collar 3 on the axle by two pressure plates 16, 17 mounted axially on behind the other at the end of the axle, the inboard plate 16 engaging directly or indirectly the bearing assembly, and the outboard plate 17 being constrained towards the end of the axle by bolts 18 extending through the plate 16, the two plates contacting each other only in their central zones by a protruding part 19. The bearing assembly comprises a cylindrical roller bearing 6 and a spherical roller bearing 5 situated in the plane perpendicular to the axle and passing through the point of contact between the wheel and its rail. A sleeve 15 is positioned on the axle and is clamped between the ring 17 and sealing rings 11, 12 enclosing the bearing assembly. The bolts 18 preferably comprise three in number spaced at equal distances and angles around the axis of the axle.
Patent GB-514138-A (GB)
Abstract: 514,138. Showcases. SCHNEEBERGER, W. Nov. 24, 1938, No. 34278. Convention date, Jan. 7, [Class 52 (i)] A showcase consists of a plurality of removable and interchangeable open-fronted compartments each fitted with illuminating means which is preferably concealed behind a fillet at the top of the open face. The Specification as open to inspection under Sect. 91 includes drawings which do not appear in the Specification as accepted.
Patent GB-1448645-A (GB)
Title: Photographic cameras
IPC: G03B9/70
Filed: 1974-11-27
Abstract: 1448645 Cameras POLAROID CORP 27 Nov 1974 [20 Dec 1973] 51439/74 Headings G2A and G2J A camera having a battery operated film transport motor 82, e.g. of the self-processing, folding, reflex type, is adapted to receive an electronic flash unit 2 which is rechargeable from the battery 116 which operates the motor but which is prevented from being recharged when the motor is operating. An integrated circuit 118 synchronizes the operation of the camera shutter mechanism 49, the flash unit 2 and the film transport motor 82 and includes two switches S12 and S7 controlling the recharging of the flash unit and the operation of the motor respectively. The two switches are arranged in the circuit such that when switch S7 is closed to cause energization of the motor switch S12 is opened to prevent the flash unit from being recharged. In a modification Fig. 11 (not shown) the switch S12 is replaced by a transistor Q2 which acts as electronic switch which is cut-off during the operation of the motor. The shutter comprises a pair of blades 47, 48 each provided with a tear shaped aperture 169, 170 and a pin 156, 159 engaged by a slot 57, 160 formed in the two ends of a walking beam 158.
Patent GB-1278467-A (GB)
Title: Rear tightener for safety ski-bindings
Inventor: MARKER HANNES
IPC: A63C9/084
Filed: 1969-10-21
Abstract: 1278467 Rear tightener for safety ski bindings H MARKER 21 Oct 1969 [7 March 1969 14 May 1969] 51615/69 Heading A6D A rear tightener for safety ski bindings comprises a heel holding-down member 16 pivotally attached by two tension rods 14, 15 to the forked arm 10 of a push rod 9 which is pivoted at its centre 8 to a guide lever 6 pivotally attached to a base plate 1 secured to the ski and has on its other arm 11 a roller 12 resting on the ski. A releasable locking device in the form of a cross member 13 having a central hump 17 is pivoted between the ends of the forked arm 10 of the push rod 9, the hump 17 being secured beneath the raised portion 4 of base plate 1 for downhill runs, and engagable in a recess 18 (as shown) or lying along the top of portion 4 for crosscountry walking.
Patent GB-1243032-A (GB)
Title: A brake device for a conveyance
Inventor: MEYER WILHELM
IPC: B62B5/04
Filed: 1968-10-31
Abstract: 1,243,032. Friction brakes; one-way brakes. W. MEYER. 31 Oct., 1968 [24 Nov., 1967], No. 51649/68. Heading F2E. A brake device arranged in the region of a wheel so as to act directly on it, the wheel being that of a conveyance such as an invalid chair, has a brake shoe 13 movable at its upper end about a fixed bearing point 14 and provided with a lever linkage 18, 20, connected to the lower end; the lever linkage has a manual operating handle 24, and is formed as a toggle which, as it is moved from one side to the other moves the shoe to an operative or an inoperative position. As shown in Fig. 5, the brake shoe 13 is pivoted at 14 to a structure 12 secured to the frame or side wall of an invalid wheel-chair having a wheel 10. The brake shoe is held in the "off" position shown by a helical tension spring (not shown) located between the upper part of the shoe and the middle of the structure 12. A two-part hand lever 16, 20, is pivoted at 15 to the structure 12, and a connecting lever 18 is pivoted at 17 and 19 to the hand lever and brake shoe respectively, pivot 17 lying to the right of the line joining pivots 15 and 19 in the "brake off" position. To apply the brake, the hand lever is moved to the right until the pivot 17 lies to the left of the new line joining pivots 15 and 19, Fig. 4, so that the brake shoe is forced against the wheel 10 by toggle action in opposition to the spring referred to above. The face 22 of the brake shoe 13 is roughened, fluted or serrated. Preferably a stop 21 is provided for engagement by lever 18. When the main brake is in the "off" position, a reverse lock 25 may be pivoted manually about its hinge 26 to engage the tyre of the wheel 10 as shown in Fig. 5. Then, when the chair moves forward, (wheel 10 moving clockwise), the reverse lock 25 slides ineffectually over the tyre surface; if the chain tends to roll backwards down an incline or steps, the reverse lock is urged by the wheel into the position shown to prevent rotation. A spring 28 having a toggle action is provided. The brake shoe 13 forms a stop for the reverse lock 25 in its operative position. In the modification of Fig. 6 (not shown), the reverse lock is an arcuate casting. In either case the working surface is roughened, fluted or serrated.
Patent GB-1114342-A (GB)
Title: Voltage level detector or with tunnel diode
IPC: G01R31/26
Filed: 1965-12-06
Abstract: 1,114,342. Tunnel diode voltage level detector. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 6 Dec., 1965 [7 Dec., 1964], No. 51712/65. Heading H3T. A voltage level detector comprises a signal input 31-32, a tunnel diode 34, a negative voltage feedback loop coupling the diode to the input, and means for collecting an output signal across the diode (terminals 38-39). At zero input voltage, transistor Q 3  is cut off, and zero voltage appears across tunnel diode 34. As the input voltage increases from zero, transistor Q 3  switches on, and the negative feedback through resistor R 22  and through the differential amplifier composed of transistors Q 1 , Q 2  and the constant current device formed by transistor Q 4 , ensures that the voltage across tunnel diode 34 is equal to the input voltage. When the threshold voltage of the tunnel diode is reached, its operating point jumps to a point, on the upper voltage positive resistance part of its characteristic, of the same current value as that at the threshold voltage, since the current amplifier Q 3  maintains this current constant. The differential amplifier, being now unbalanced, returns the tunnel diode voltage to that of the input, and the cycle is repeated. Oscillations so resulting whilst the threshold is exceeded may be filtered (by a capacitor), amplified or integrated in device 310. The detected voltage threshold is independent of temperature since it depends not on the temperature dependent current but on the temperature independent voltage, of the tunnel diode threshold point.