baber/WOPTO huggingface dataset:
Patent GB-1338745-A (GB)
Title: Fuel control system for internal combustion engines
IPC: F02D41/34
Filed: 1972-07-21
Abstract: 1338745 Electrically controlled fuel injection systems BENDIX CORP 21 July 1972 [10 Sept 1971] 34354/72 Heading G1N In an I.C. engine, electrically controlled fuel injection system, a cold start auxiliary circuit is provided in which a signal, representative of the engine temperature when the ignition is switched on but before the engine is started, is initialled stored, and, when the engine is cranked at starting, the stored signal is discharged, the time taken for the stored signal to discharge to a reference level determining the duration of a cold start signal which is initiated when cranking is initiated. The cold start signal is provided to energize injector valve means. As shown in Fig.1, the engine is provided with an electrical system having a three-position switch 38 whose positions correspond to OFF, RUN in which the circuitry is energized by a battery 36, and CRANK in which the starter motor is energized. The engine is provided with an intermittent fuel injection system of the type having a computer 10 triggered by a timing pickup 16 to provide upon each triggering, a pair of injection valve opening pulses, the first pulse having a duration dependent upon intake manifold pressure (sensor 12) and the second pulse having a duration dependent upon the duration of the first pulse and upon engine temperature (thermistor 14), Fig.2 (not shown). The cold start auxiliary circuit 250, Fig.3, has an input A connected to the thermistor 14 and an input C connected to the CRANK contact of switch 38. Before the engine is started the switch is turned to its RUN position and the circuitry is energized so that the input A receives a temperature dependent signal which is stored in a capacitor 206. When the switch is subsequently moved to the CRANK position to start the engine, the signal at input C causes a bi-stable switch 222 to be triggered. Consequent of this, a cold start signal is initiated at terminal 266, and the charge on capacitor 206 is drained so that the voltage at the collector of transistor 240 decays. This voltage is applied to the control electrode of a second bi-stable switch 238 which conducts when the voltage at its control electrode decays to a reference valve. Upon conduction of switch 238, the cold start signal at terminal 266 is terminated.
Patent GB-803742-A (GB)
Title: Improvements relating to mass spectrometers
Inventor: CRAIG ROBERT DEREK
IPC: H01J49/02
Filed: 1955-12-01
Abstract: 803,742. Mass spectrometers. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 15, 1956 [Dec. 1, 1955]. No. 34432/55. Drawings to Specification. Class 39(1). [Also in Group XL(c)] In a mass spectrometer the mass spectrum is swept across the collector resolving slit and the effective width of the slit is varied inversely with respect to mass number while the rate of scan is varied so that for each mass number the time of collection is the same. The overall time of scan is then adjusted to the minimum consistent with obtaining a given recording accuracy. The effective width of the slit may be varied electrically as described in Specification 759,917 and controlled by the magnet current in the case of magnetic scan or by the accelerating voltage in the case of electrostatic scan. The desired variation of control voltage which may be in steps or may approximate a smooth curve is obtained by means of a thermionic amplifier circuit employing negative feedback (see Group XL(c). The direction of scan may be from heavy to light elements or vice versa.
Patent GB-206734-A (GB)
Title: New intermediate compounds
IPC: C07C207/04
Filed: 1922-12-18
Abstract: p-Nitroso-m-halogen-phenols are prepared by treating m-chlor, m-brom, or m-iodo-phenol with nitrous acid.  In an example a solution of m-chlorphenol in caustic soda and sodium nitrite in water is slowly acidified with sulphuric acid; hot acids convert the yellow product into a reddish body, possibly the quinone oxime form, which by treatment with alkali yields a pale yellow body which can be precipitated by acids.
Patent GB-521858-A (GB)
Title: Improvements in or relating to ironless induction furnaces
IPC: H05B6/24
Filed: 1938-11-26
Abstract: 521,858. Electric induction furnaces. HERAEUS-VACUUMSCHMELZE AKT.-GES. Nov. 26, 1938, No. 34533. Convention date, Nov. 27, 1937. [Class 39 (iii)] An ironless induction furnace has a tapping- hole, d, arranged in the side thereof and near the bottom. The turns of the induction coil b at the level of said tapping-hole extend outwardly and are bent around a portion of the periphery of the tapping-channel, the extended parts of the coil-turns being inducted at b<SP>1</SP>, and b<SP>2</SP>. In a modification, Fig. 3, the turns of the coil are extended only around the lower part of the tapping-channel, and the said extended turns, b<SP>1</SP>, b', are formed into a kind of trough which constitutes a support for the discharge-channel d. Filling-pieces, e, of solid copper may be fitted between the extended turns.
Patent GB-866459-A (GB)
Title: Improvements in or relating to steam heated appliances for any suitable purposes
IPC: A47J27/16
Filed: 1958-10-29
Abstract: 866,459. Steam-heated food cabinets. BANKS, E. Jan. 29, 1960 [Oct. 29, 1958], No. 34585/58. Class 28 (1). [Also in Group XIII] An insulated food cabinet is provided with hollow shelves 2 supplied with steam from a gas &c. boiler 3 controlled by a thermostat in an open-ended U-shaped tube 9 supplied with steam from a return-pipe 6 and a branch pipe 8. Condensate from the U-shaped pipe 9 drips into the water inlet 14 of the boiler.
Patent GB-1516610-A (GB)
Title: Mountings for and including figures of sports games
IPC: A63F7/22
Filed: 1977-08-18
Abstract: 1516610 Playing piece SUBBUTEO SPORTS GAMES Ltd 18 Aug 1977 34644/77 Addition to 1512285 Heading A6H A mounting as claimed in Claim 1 of Parent Specification 1512285 is modified in that the member 122A having the spigot also has a sleeve which engages over the socket 116A. Adhesive may be used in addition.
Patent GB-485401-A (GB)
Title: Tyre shaping machine
IPC: B29D30/36
Filed: 1936-12-17
Abstract: 485,401. Moulding tyres. DUNLOP RUBBER CO., Ltd., and BROADBENT, F. G. Dec. 17, 1936, No. 34670. [Class 87 (ii)] Relates to machines in which a flat tyre casing 20 is expanded into tyre shape 21 by plates 19. The plates are mounted on links 16 pivoted to intergeared links 12, 13. The links 12, 13 are pivoted to a sleeve 6 secured to an extension 1 of a piston rod, and to a fixed sleeve 7 through which the rod 1 passes. The links 12, 13 are guided at their outer ends between wings 24 extending radially from the sleeves 6, 7. A telescopic or other tube 27 on the rod 1 limits the expansion of the tyre shape.
Patent GB-308335-A (GB)
Title: Improvements in alternating current electric machines
IPC: H02K27/12
Filed: 1927-12-22
Abstract: 308,335. English Electric' Co., Ltd., and Ball, R. D. Dec. 22, 1927. Alternating - current commutator machines; improving commutation, auxiliary means for.- In an alternating-current commutator machine of the type in which the magnetomotive force of the stator is in close opposition to that of the rotor, condenser circuits are shunted across the stator or rotor windings or portions thereof, these circuits having a high impedance for currents of the normal frequency of the machine and a low impedance to currents of high frequency such as are produced by commutation or tooth ripple. These high frequency currents damp out the originating high frequency currents in the machine and thereby improve the commutation. The application to a series commutator machine is shown in Fig. 1 wherein condensers 6, 7 are applied to each of the field coils 4 and across each pair of brushes 3. Fig. 2 shows a Scherbius phase advancer with compensating windings 8 and shunt or series coils 10 on the salient poles 9. In this case, condensers 7, 11 and 12 are respectively connected across the brushes, compensating and field windings although one or more sets of the condensers may be omitted. The capacities may be such that, together with the windings to which they are connected, they resonate with one of the frequencies of the flux pulsations or to a frequency midway between the two principal frequencies of pulsation so as to be effective over a range including the two principal frequencies.
Patent GB-1409268-A (GB)
Title: Material cutting machines
IPC: E21C31/10
Filed: 1972-07-25
Abstract: 1409268 Mineral-mining machines DRESSER EUROPE SA 18 Oct 1973 [25 July 1972] 34794/72 Heading E1F [Also in Division F2] Located adjacent to a rotary cutter of a material-cutting machine to maintain cut material, e.g. mined mineral, in close contact with the cutter over a part of the periphery thereof is an arcuate cowl, which is displaceable from one position to another about the cutter when clutch means provided between the cow] and the cutter is actuated to utilise part of the power being transmitted to the cutter. One part of the clutch means can be mounted either on the cutter drive shaft or on the cutter to rotate therewith. The clutch means may comprise an annular pressure chamber 5, Which is secured to encircles a driven shaft 3 on which the cutter is co-axially mounted, arcuate drive members 6 and pressure means 10 within the chamber for urging the drive members 6 radially outwards of the chamber into contact with an arcuate part of the cowl. The drive members 6 and/or the cowl part are provided with one or more friction linings. The chamber can be of U-shaped cross section with the mouth of the chamber closed by a split ring 9, the drive members 6 can then be portions of the ring 9 and the pressure means 10 may be an annular tube housed within the chamber. The clutch means when mounted on the cutter may also comprise a series of radially or axially-acting piston cylinder devices with the pistons thereof cooperating directly with a part of the cowl, the pistons or the cowl part being provided with one or more friction linings. The clutch means may also be such as to ensure of frictional engagement between the cowl and the cutter when the cowl is moved axially of the cutter by appropriate means.
Patent GB-1463746-A (GB)
Title: Seal element for a regenerative heat exchanger
IPC: F28D19/04
Filed: 1974-08-07
Abstract: 1463746 Thermal regenerators DAIMLERBENZ AG 7 Aug 1974 [10 Aug 1973] 34847/74 Heading F4K [Also in Division F2] A D-shaped seal assembly 23 for a rotary regenerative heat exchanger comprises a metal support strip 26, a rubbing or sliding layer 25 made up of individual graphite blocks 28 closely spaced from one another and embedded in a connecting layer 27, the support strip 26 having a base part 29 and two lateral parts 30 which partly embrace the sides 31 of the graphite blocks. Slits 32 are formed in the lateral parts 30 of the support strip 26, said slits extending as far as the base part 29 and located at the centre of the sides 31 of the respective graphite blocks. The connecting layer 27, which may be of silicone rubber, fills the joints 33 between the support strip and the blocks, the joints 34 between adjacent blocks, and the slits 32 in the lateral parts 30 of the support strip 26. A spring bellows 20 connected to a flange 19 of the regenerator housing urges the seal assembly 23 into sliding contact with an end face of a rotating glass-ceramic heat storage mass 12. In an alternative embodiment (Fig. 4, not shown) the graphite blocks (37) are of trapezoidal cross-section. In the corner region A of the seal assembly, the connecting layer (43) may comprise a highly temperature-resistant ceramic cement reinforced by a wire mesh (44).
Patent GB-1389035-A (GB)
Title: Method of and apparatus for manufacturing copper tubes by  means of hydrostatic extrusion
IPC: B21C23/00
Filed: 1972-07-26
Abstract: 1389035 Extruding ALLMANNA SVENSKA ELEKTRISKA AB 26 July 1972 [27 July 1971] 34863/72 Heading B3P A tubular copper billet is formed into a tube by heating the billet and hydrostatically extruding it through a die from which it is led to a cooling zone spaced from the die sufficiently to allow recrystallization of the copper before cooling. The copper tube is guided from the die by a tube 2 which is supplied with inert gas, e.g. nitrogen from a cylinder 4 near the die. The guide tube 2 has one or more cooling units 10 near its outlet which spray the tube with water. The water is collected in a drainage device 14 around the guide tube 2 which is perforated in this area. A plug may be provided in the end of the copper tube to prevent ingress of air or water. The billet is initially heated to above 250‹ C., and the extrusion ratio is greater than 200 : 1. In one example the initial temperature is about 350‹ C., the ratio about 500 : 1. The extrusion pressure 10-15 kbar and the cooling units are 30 metres from the die which at an extrusion speed of 15 m./sec. allows 2 seconds for the recrystallization. The cooled extruded tube is directed to a coiler 3.
Patent GB-492798-A (GB)
Title: Improvements in water-tube steam generators and like heat exchangers
IPC: F22B37/14
Filed: 1936-12-18
Abstract: 492,798. Forced - flow steam boilers. BABCOCK & WILCOX, Ltd. (Babcock & Wilcox Co.) Dec. 18, 1936, No. 35048/37. Divided out of 492,733 under which a Specification was laid open to inspection under Sect. 91 of the Acts, June 19, 1937. [Class 123 (ii)] In a boiler having a number of parallel connected tubes arranged along the walls of a combustion chamber, the tubes being bent upwardly to form superposed groups, to avoid unequal heating of the tubes, the sequential placing of the tubes in successive groups is reversed, that is, the lower tubes of a group become the upper tubes of the next group. The interconnecting portions B<1>, B<11>-H<1>, H<11> of tube groups A-H, H-A are in planes at right-angles to the tubes and are so stepped that the lower portions B<1>-H<1> are in an angular plane, while the upper portions B<11>-H<11> are in a horizontal plane. The tubes enclose a U-shaped chamber, the return leg of which contains spaced groups of looped tubes, as described in Specification 492,733.
Patent GB-906497-A (GB)
Title: Improvements in or relating to handles
IPC: E05B1/00
Filed: 1959-10-16
Abstract: 906,497. Handles. FEJER, G. Jan. 16, 1961 [Oct. 16, 1959], No. 35059/59. Class 52 (1). A furniture or like handle has an aperture 2 to receive a fixing screw 3 which has an axial bore 7 to receive the shank 8 of a cap 9 intended to cover the head of the screw. In a modification, Fig. 2, a body 13 has a flange 14 intermediate its ends 15, 16 to form a seating for the head 17 of a screw 18 and either end can receive as a push fit a cap 20. In another modification, the body of the handle is cupshaped and receives a cap. In a further modification, Fig. 5, a handle 39 has a hollow leg 40 to receive a screw and a leg 41 with a spike 47, a cap 46 closing the open end of leg 40.
Patent GB-408186-A (GB)
Title: Improvements in or relating to liquid fuel injecting nozzles for internal combustion engines
IPC: F02M61/04
Filed: 1933-12-13
Abstract: 408,186. Liquid - fuel injectors. SOC. ANON. A. SAURER, Arbon, Switzerland. Dec. 13, 1933, No. 35066. Convention date, Dec. 30, 1932. [Class 7 (iii).] In a recess f in a plate e which is pressed firmly on the nozzle body a by a nut d, are loosely mounted one or more diaphragms h, having clearance around their peripheries. The diaphragms bear normally against a conical surface i, and their opening movement is limited by a conical surface k on the plate e. Two or more diaphragms may be arranged in series, and the fuel, which is delivered from the pump through a passage b, either passes through an annular space c and a hole g in the diaphragm, or around the edges of the diaphragm.
Patent GB-1103582-A (GB)
Title: Improvements in or relating to photographic developing machines
Inventor: BUNGAY JEFFERY ARTHUR
IPC: G03D13/00
Filed: 1963-09-05
Abstract: 1,103,582. Heat developer apparatus. HALL HARDING Ltd. Dec.1, 1964 [Sept. 5, 1963], No.35125/63. Heading G2A. [Also in Division F4] A photographic developing machine (Fig. 1) for heat developable materials comprises radiant heat sources 42, 44 and heat exchangers 30, 34 and 32, 36 containing a fluid (e.g. by air), between which the material passes, the feed and draw rollers 16, 18, 20, 22 comprising alternate axially spaced discs (as in Fig. 2 not shown). The air in the heat exchangers may be recirculated Fig. 5 (not shown). In a modification of the apparatus Figs. 4 and 6 (not shown) the chambers 30, 34 and 32, 36 are respectively combined into single chambers (30a), (32a) containing holes (52), through which a portion of the air is blown to float the material.
Patent GB-623065-A (GB)
Title: Improvements in or relating to a process and apparatus for drying varnishes or othersubstances forming coatings on objects
IPC: B05D3/04
Filed: 1946-11-27
Abstract: 623,065. Drying varnished objects. CAGET, J. L. G. Nov. 27, 1946, No. 35131. Convention date, Jan. 17, 1941. [Class 34(ii)] Varnished objects &c. are dried by means of a fan 18 exhausting air from a drying chamber 11 and re-introducing the air into the drying chamber by way of an air heater, greased discharge pipes 8 and dust filtering screens 10. The dust filtering screens preferably consist of iron scale packing contained between wire gauze sheets. The heater comprises a plurality of air-conveying tubes swept externally by hot gases. An air renewing vent 20, means 21 for trapping volatile solvent leaving the drying chamber and a truck for the charging of the varnished objects are also included.
Patent GB-1056308-A (GB)
Title: Improvements in or relating to electrical apparatus and protective arrangements therefor
Inventor: SCARLETT EDWARD
IPC: H02K11/00
Filed: 1964-08-27
Abstract: 1,056,308. Dynamo-electric machine protection. GENERAL ELECTRIC CO. Ltd. July 7, 1965 [Aug. 27, 1964], No. 35217/64. Heading H2A. [Also in Division H1] In an electrical apparatus, e.g. motor, generator or transformer having at least one winding protected by at least one thermistor 3, the latter is embedded in a thermally conductive heat resisting electrically insulating resinous mass 2 which forms with the thermistor an assembly which is mounted in thermal contact with the winding. The assembly may comprise a strip 1 of absorbent material, e.g. woven glass cloth which is coated with the mass 2 which may be a phenol formaldehyde varnish incorporating a filler, e.g. silica; the strip is folded around the thermistor, pressed to exclude air bubbles, and after binding to the winding may have its resin cured simultaneously with the winding thermosetting resin impregnant. The thermistor wires 4, 5 are connected to a protective switch or warning device.
Patent GB-909511-A (GB)
Title: Improvements relating to gas turbine engines having a compressor bleed valve
IPC: F04D27/02
Filed: 1960-10-14
Abstract: 909,511. Fluid-pressure servomotor control systems. GENERAL MOTORS CORPORATION. Oct. 14, 1960 [Oct. 14, 1959], No. 35249/60. Class 135. [Also in Group XXVI] The compressor of a gas turbine engine has a bleed valve arranged to be opened and closed automatically in response to a combined function of compressor speed and compressor acceleration, and the valve may also respond to an ambient temperature correction and to transient changes in engine fuel supply rate effected e.g. by a manual fuel control lever. The gas turbine compressor 11 has a piston bleed valve 32 loaded to open by the compressor pressure and actuated in response to varying control pressure in a chamber 34 under the control of a spool valve 38 which has a feedback connection with the piston 32 through a floating lever 45. The spool valve is responsive to compressor speed through shaft gearing 52, 51, 54 which supplies an input signal to a controller 50, this controller being subject to an ambient temperature correction from a sensing bulb 56 and having an output shaft 58 operating a cam 59 which contacts one end of a floating lever 61 connected to the first floating lever 45. The other end of the second floating lever 61 is connected to a third floating lever 73 which at one end 72 is operated in response to compressor acceleration by an output cam 71 of an accelerometer 66 which receives an input signal from the gear shaft 51 through further gearing 68. The other end 81 of the third floating lever 73 is actuated transiently in response to changes in the fuel rate by an output cam 79 of a device 76 which receives its input from a rod 77 connected to a hand control lever 25, this lever operating on a fuel control 19. The device 76 comprises a piston 83 having a restricted opening 84, Fig. 2, and connected to the rod 77, the piston operating in a movable dashpot cylinder 88 which is centralized by springs 91, 92 and carries the output cam 79. The engine may alternatively be of the type comprising two independently rotating compressors each driven by a turbine.
Patent GB-948314-A (GB)
Title: Improvements in or relating to adding mechanism
IPC: G06F7/50
Filed: 1962-09-17
Abstract: 948,314. Parallel adders. KIENZLE APPARATE G.m.b.H. Sept. 17, 1962 [Sept. 18, 1961], No.35327/62. Heading G4A. A binary-coded decimal adder receiving the bits of a single decimal denomination in parallel on lines 1-4 comprises bi-stable units A-D each of which may be switched by a pulse (representing binary 1) received as the first decimal digit is entered, and also changes state if a pulse is received from the second decimal digit, carries being propagated via delay circuits 12-14. As described, the excess three code is used, so that after each addition 3 must be subtracted if no carry has occurred, and 3 added otherwise. The addition of 13 without allowing carry into carry register 17 is equivalent to subtracting 3, and this is done by a pulse on 22 passing through gate 21; the pulse 22 breaks the circuit to the carry register at 16. If a carry has been registered, gate 20 will be open instead of 21.
Patent GB-176892-A (GB)
Title: Improvements in wireless transmitting stations
IPC: H01Q9/40
Filed: 1920-12-15
Abstract: 176,892. Round, H. J. Dec. 15, 1920. Coupling oscillating and radiating circuits; thermionic oscillation generators; aerials. - In wireless transmitting-stations in which the aerial is situated at a distance from the generator, or where two such aerials are used for simultaneous transmission on different wave-lengths, the usual aerial tuning-inductance is replaced by a trunk cable B extending from the foot of the aerial A to the transformer C, D in the power house. The cable B is surrounded by a cage of wires E, these being connected or coupled at one end to an earth screen F for the aerial. The arrangement ensures that the currents create but a small external resultant field, whereby energy losses are diminished. For long distances, the cage and cable are divided into separate lengths inductively coupled together. As shown in Fig. 3, the cable and cage are connected across the primary of a second transformer G at the aerial end, thus forming an untuned intermediate circuit. This circuit may be tuned by the inclusion of a con denser in series or in parallel; also inductances may be inserted along the length of the cable When a valve generator is employed, a similarly shielded or caged cable may be used in the anodefilament circuit of the valve.