baber/WOPTO huggingface dataset:
Patent GB-137032-A (GB)
Title: Improved Apparatus for Diminishing the Injurious Earthing Currents in Earthed High Pressure Nets having a Capacity that is Non-symmetrically Distributed Over the Phases of the Net.
IPC: H02H9/08
Filed: 1919-09-09
Abstract: 137,032. Akt.-Ges. Brown, Boveri, et Cie. Dec. 23, 1918, [Convention date]. Drawings to Specification. Protective arrangements.-In high-tension distributing systems having' capacity asymmetrically arranged over the phases of the net and with the neutral point earthed, a coil being placed in the earthed connexion to prevent injurious earthing currents, resonance effects are obviated by limiting the inductance of the coil to a value calculated from the formula L = I/f<2>mc, where f is the frequency, m = 2 for single-phase and 3 for threephase systems, and c = the part capacity relative to earth of that portion of the system having the smallest or largest capacity with respect to earth.
Patent GB-138288-A (GB)
Title: Improvements in or relating to ordnance recoil and run-out apparatus
IPC: F41A25/20
Filed: 1917-12-03
Abstract: 138,288. Dawson, Sir A. T., and Buckham, Sir G. T. Dec. 3, 1917. Recoil apparatus.-Consists in providing the piston C<1> of an hydraulic-recoil brake with a runout control ram F, which, towards the end of the run-out, enters a chamber F<1> in the rear wall of tho recoiling brake-cylinder C, and forces liquid back into the cylinder through a passage f controlled by an adjustable valve F<2>. The valve is held in any position of adjustment by a spring- pressed collar f<2> slidable upon the squared end of the valve spindle and having teeth which engage teeth on a collar f<3> on the end of the chamber F'. The invention is particularly applicable to apparatus of the hydro-pneumatic type.
Patent GB-884419-A (GB)
Title: Improvements in or relating to circuit arrangements for separating out interference signals
IPC: H04N5/21
Filed: 1958-07-11
Abstract: 884,419. Radio receiving systems; automatic gain control. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 11, 1958 [July 11, 1957], No. 22318/58. Class 40(5). In an interference suppression circuit for negatively modulated television signals, the video signal which includes synchronizing pulses 12, 13, Fig. 2, and interference pulses 21, 22 is applied to the control grid 5 of an amplifier 1 whose screen grid is biased by contrast control 7, 8, the peaks of the interference pulses being removed by diodes 23, 24 and added in phase opposition to the amplified video signal in line and frame separators 25, 26. The control grid cut-off potential of valve 1 is indicated by line 11 in Fig. 2 and in order that diodes 23, 24 should pass the peaks of interference pulses which exceed the synchronizing pulses 12, 13, resistors 9, 10 are chosen so that line 11 corresponds to earth potential. If the contrast control 7, 8 is altered, i.e. a new screen grid voltage Vg<SP>11</SP> 2  is chosen, the amplitude of pulses 12<SP>1</SP>, 131 with respect to the new line 11<SP>1</SP> is slightly larger, resulting in a smaller A.G.C. voltage from valve 15 and a corresponding increase in the amplitude of the detected video signal, so that again the interference peaks which exceed the synchronizing pulse amplitude are removed. The interference suppression circuit thus functions independently of the contrast control adjustment. Automatic gain control. The anode of valve 15 is supplied with positive blanking pulses 16. Cathode 14 has a positive bias owing to its connection to the junction of resistors 9, 10, and the bias is counteracted by -supplying a corresponding bias from potential divider 18, 19 to grid 17. In an alternative circuit, Fig. 4 (not shown), resistor 9 is omitted, diodes 23, 24 are biased from point 7 through a resistor, and are connected to grid 5 through an R.C. network, potential divider 18, 19 being omitted and grid 17 being earthed.
Patent GB-615273-A (GB)
Title: A new or improved hydraulic power-transmission apparatus
IPC: F16H39/36
Filed: 1946-07-26
Abstract: 615,273. Hydraulic couplings. THORPE, E. H. July 26, 1946, No. 22328. [Class 69 (ii)] In a hydraulic power transmission apparatus comprising a hydraulic pump driving a hydraulic motor through a main liquid circuit, wherein in addition to the main circuit an auxiliary reservoir is arranged to receive back through the pump excess liquid from the motor when the motor runs slower than the pump, the excess liquid is returned from the reservoir to the pump as driving energy during a period of decreasing pressure in the pump. The pump comprises a spur-wheel 4 on a driving shaft 2 meshing with spur-wheels 5 and 6. The motor is a duplication of the pump and comprises a spur-wheel 8 on a driven shaft 3 meshing with spur-wheels at 90 degrees to the wheels 5 and 6. The pump and motor are separated by a plate 12 containing ports which permit liquid from the pump to drive the motor and to return from the motor to the pump. A block 16 attached to the spur-wheel 4 has a chamber 15 for each of the valleys between the teeth of the wheel. Each chamber is connected to its corresponding valley by a passage 17, and contains a spring-loaded piston 18. If the pump is unable to drive the motor at its own speed, the liquid not delivered to the motor is delivered to the chamber 15. Compression of the spring 19 commences and increases until the associated spur-wheel valley is occupied to the fullest extent by a tooth of one of the spurwheels 5; after the said spur-wheel valley has passed this position the pressure decreases and 'becomes normal again, the energy stored in the spring 19 being released to impart a driving thrust on the pump. Liquid expelled from the motor can enter a space 23 and hence through openings 25 to behind the pistons 18. If this liquid is at greater pressure than that in front of the pistons 18 it passes through self-acting, non-return valves 26 and will make good any loss of liquid which the motor has taken by over-running the pump.
Patent GB-1465798-A (GB)
Title: Safety valve
IPC: F16K17/10
Filed: 1974-05-20
Abstract: 1465798 Valves BENNES MARREL 20 May 1974 [21 May 1973] 22372/74 Heading F2V [Also in Division G3] A main valve member 6 which is normally controlled by a pressure responsive pilot valve 25 to relieve pressure from a higher pressure duct 12 to a duct 13 has spring 17 and the effective areas of the valve member selected such that the latter unseats to allow reverse flow and prevent cavitation should the pressure in duct 12 fall below that in duct 13.
Patent GB-657563-A (GB)
Title: Improvements in board games
IPC: A63F3/00
Filed: 1948-08-25
Abstract: 657,563. Board games. HIRST, A. L., and BULLOCK, V. M. Aug. 25, 1948, No. 22375. [Class 132 (ii)] A board game which may represent the careers of film actors comprises a board marked as shown, a plurality of differently coloured playing pieces comprising bases 1 and frames 3 for pictures torn from a perforated sheet, one die marked with numerical indicia a second die having on each face a star coloured to correspond with one of the playing pieces and sets of cards denoting hazards, assets and business transactions. One or both of the dice may be replaced by a flat-sided spinning top or by the device shown in Fig. 15 which comprises a spinning disc 50 marked with, e.g. coloured stars, rotating on a base 51 which is marked with an index 52. A miniature trophy and imitation money are provided.
Patent GB-697601-A (GB)
Title: Improved method for generating power in a nuclear reactor
IPC: G21C5/12
Filed: 1946-07-26
Abstract: 697,601. Nuclear reactors. STANDARD OIL DEVELOPMENT CO. July 26, 1946 [Aug. 4, 1945], No. 22387/46. Class 39(iv) A nuclear reactor generating useful heat comprises spaced elements of fissionable heavy metal within a shielded zone, moderating material, and means for withdrawing heat by circulating a hydrocarbon oil. Rods 1 of U<SP>235</SP>, Pu<SP>239</SP> or U<SP>233</SP> are surrounded by the oil, acting as a coolant and as a moderator, this reacting mass being encased in two or more alternate layers of metal and non- metal and an outer layer 4 of concrete and the whole buried below the surface 7 of the ground. A pump 10 circulates the oil through a heat exchanger 9 and surge chamber 10a from which gases of decomposition may be withdrawn. The oil used is preferably rich in aromatic constituents. With an oil having a low boiling-point, a condenser may be used at 9. Tarry materials are removed at 8a. In a modification, Fig. 2, rods of fissionable material are coated with a light metal (A1 or Be) and inserted concentrically in light-metal tubes 12. A liquid or solid moderator fills the space around the tubes and the oil coolant is circulated within the tubes. Water or D 2 O is suggested as a moderator.
Patent GB-463853-A (GB)
Title: Improvements in cathode glow lamps
IPC: H01J61/64
Filed: 1936-08-14
Abstract: 463,853. Discharge lamps ; television. GENERAL ELECTRIC CO., Ltd. Aug. 14, 1936, No. 22416. Convention date, Aug. 31, 1935. [Classes 39 (i) and 40 (iii)] A cathode glow lamp, in or for a television receiver adapted to receive a carrier modulated at a frequency exceeding 100 kcs., has a filling of which the main constituents are neon and helium, the proportion of helium exceeding 50 per cent. A mixture of 70 per cent helium and 30 per cent neon may be employed, with optional addition of argon, nitrogen or water vapour. Water vapour may be obtained from copper sulphate within the envelope. Better response to high frequency modulation is obtained compared with the more usual mixtures containing 75 per cent neon. In the lamp shown the cathode 6 is a metal sheet bent at an angle of 20-50 and the anode 9 has a central slot 13 and flanged edges 10. The glow at the apex of the cathode proceeding through the slot 13 produces a line of light suitable for use with a mirror screw. A sheet of mica. 14 covers the outside of the cathode. The electrodes are spaced by wires and glass beads and are supported at one end by a pinch and at the other by a wire engaging a depression in the envelope. British Specification 145,400, [Class 39 (i)], and U.S.A. Specification 1,832,009 are referred to.
Patent GB-279593-A (GB)
Title: Improvements in kinematograph film strips
IPC: G03D15/00
Filed: 1926-09-11
Abstract: 279,593. Thornton, J. E. Sept. 11, 1926. Addition to 279,241. Kinematograph apparatus.-In a combination of film, leader strips, and spools, in accordance with the parent Specification, the heads of the pictures-in the two rows are respectively directed towards the opposite ends of the film, as indicated.
Patent GB-1254638-A (GB)
Title: Electric switches
IPC: H01H23/12
Filed: 1969-05-02
Abstract: 1,254,638. Retractive switches. GENERAL MOTORS CORP. 2 May, 1969 [21 May, 1968], No. 22489/69. Heading H1N. A double-pole double-throw switch, suitable for reversing small electric motors, for example, comprises an actuator 30 pivoted at 70 in a housing 12 and urged to a central " OFF " position (as shown) by spring blade contact members 24 and 25. An insulating base-plate 14 carries six fixed contacts such as 18 and 21 arranged in two rows of three (as in Fig. 4, not shown). The members 24 and 25 are each of V- shaped configuration (when viewed in the direction of arrows 4 or 5), the end of one arm being secured to a fixed contact, and each has a movable contact, 24a, 25a respectively, at the apex of the V. Another respective movable contact 24b, 25b is carried on the free end of the other arm, which latter arm is bent to V-shape in side elevation, as shown, thus providing an apex 80. When actuator 30 is moved up or down the apex 80 abuts plate 14 and acts as a fulcrum to lift contact 24b (or 25b) off its associated fixed contact prior to the engagement of contact 24a (or 25a) with its associated fixed contact. Spring clips (33, Fig. 3, not shown) provide snap-in mounting of the switch in a panel 13.
Patent GB-897262-A (GB)
Title: Improvements in or relating to panoramic cameras
IPC: G03B37/02
Filed: 1957-07-16
Abstract: 897,262. Panoramic cameras. STYLES, S. W. Oct. 14, 1958 [July 16, 1957], No. 22554/57. Class 98(1). In a panoramic camera the film is carried on the outside of a stationary cylindrical film support and is exposed through a slit as the objective moves in a circular path around the film support. As shown, film holder 31 is fixed to stationary spindle 115 carried by gripping piece 114 and casing 111 carrying lens 56 and reflecting prism 58 revolves about it to effect exposure through slit 52. Spiral spring 67 is connected between driving block 68 for casing 111 and gear ring 66 which is held stationary relatively to gripping piece 114 by pinion 72 on fixed shaft 73. Pinion 72 may be turned by knob 74 to adjust the initial tension in spring 67. Block 68 is released by a trigger arrangement (Figs. 1 and 16, not shown) in gripping piece 114 and the exposure is ended by spring urged member 83 entering a notch in block 68. Before spring 67 can be rewound, by rotating housing 111 relatively to gripping piece 114, lens cap 61 must be closed and member 83 withdrawn from its notch. In the tensioned position the withdrawable winding spindle of film-winding knob 26 on lid 116 is aligned with the take-up spool 42 and, on moving knob 26 downwards, the film may be wound on. Spring flap 46 allows the spool 42 of exposed film to be withdrawn. The entire film holder may be slid off spindle 115 on loosening screw 32. The lens is focused by sliding block 53 with respect to tube 54. In another form it is suggested that prism 58 could be replaced by a mirror in front of lens 56.
Patent GB-1261823-A (GB)
Title: Apparatus for machining elongated workpieces
Inventor: VIERSTRAETE JEAN
IPC: B23B39/04
Filed: 1969-05-02
Abstract: 1,261,823. Sawing at predetermined positions. J. VIERSTRAETE. 2 May, 1969 [9 May, 1968; 26 June, 1968], No. 22563/69. Heading B5L. [Also in Division B3] Apparatus for machining an elongate workpiece such as an I-beam 19 (see Division B3), in which a gantry 1 and a support 2 are relatively movable, includes a saw device (not shown), on a carriage whose position along the beam is determined by reference means which also determine the position of the gantry relative to the support. The reference means are coordinated with the position of one or more abutments against which the beam is pressed. Alternatively, a reference abutment is included such that cutting will always be effected at a fixed position. For this purpose the gantry includes a measuring device with a floating zero reference which can be zeroized at any point of the support.
Patent GB-1269266-A (GB)
Title: Winding device for material in thread or tape form
Inventor: REINERS WALTER
IPC: B65H61/00
Filed: 1969-05-05
Abstract: 1,269,266. Automatic control of winding. W. REINERS. May 5, 1969 [May 8, 1968], No.22701/69. Heading G3R. The tension of material being wound into a package is automatically controlled in dependence on the output of a storage device to which signals dependent on a comparison between the length of wound material and the number of revolutions of a previously wound pilot package are applied to obtain a package of the same size. In Fig. 1, material 2 passing a friction tensioning device 4 is wound up on a reel 3. Tape recorders 15, 16 are respectively driven by reel 3 and the material 2 and, during the winding of a first reel, signals from a pulse generator are applied simultaneously through heads 17, 18 to the two tapes. Then, when subsequent reels are being wound, the recorders are started from the same initial positions and switches 25, 26 changed over to play back the pulses through heads 17, 18 and amplifiers 27, 28 to operate motors 29, 30 driving a differential gear 20. If the relationship between reel speed and material speed does not correspond to that for the first reel it is corrected automatically by an output in the appropriate sense from the differential gear adjusting tensioning device 4 through a rod 22. As a result all the reels are the same size and contain the same length of material. Alternatively, or in addition, the differential gear may control a device pressing on winding 24 to correct its size. Modifications are referred to in which pulses dependent on a predetermined movement of the reel or material are recorded on a single recorder driven by the material or reel respectively so that, during playback, tension is controlled in dependence on a comparison between pulses from the recorder and pulses resulting from predetermined movement of the reel or the material.
Patent GB-250464-A (GB)
Title: Improved method and means for preventing overheating of bearings
IPC: F16P7/02
Filed: 1925-09-11
Abstract: 250,464. Alric, E. A. M. Sept, 11, 1925. Stop-gear.-A device for preventing overheating of bearings is arranged to stop the engine and operate an electric alarm upon the fusion of a plug. A threaded, fusible plug 1 in which is embedded a looped wire 3 is screwed directly into a hole 4, Fig. 2, in, for example, the end of a connecting-rod T of an internal-combustion engine. A finger 5 pivoted at 6 on the connecting- rod is held by a binding-wire to the looped wire 3. If the plug 1 is melted the loop 3 is released and the finger 5 is turned through a right-angle by a spring (not shown). In this position the finger 5, on continued rotation of the crankshaft, strikes and depresses a finger 9, Fig. 4, on a rotatable shaft 8. Rotation of the shaft 8 causes a pin 12 to ride out of a cam-groove 13, imparting endwise movement to the shaft 8 to work a switch which interrupts the ignition circuit and closes an alarm circuit. In a modification, Figs. 5 and 7, the finger 5 is arranged to cut a wire 14 stretched within the crank case C. When the wire is cut a sleeve 24 is moved by a spring 28 so that a metallic casing 25 bridges contacts 23, 23<1> connected to terminals 20, 20<1> connected to the ignition and alarm circuits. The wire 14 is connected through a disc 18 to a rigid wire 29 within a tube 26 attached to the sleeve 24. In a modification, applicable to a shaft bearing, the loop 3 is connected directly to the wire 29. Switches of the kind described may be arranged in series, or in shunt to operate a circuit breaker to cut off the current to an electric motor driving machinery.
Patent GB-402553-A (GB)
Title: Improvements in safety razors
IPC: B26B21/34
Filed: 1932-08-17
Abstract: 402,553. Safety razors. SCOTT, A., 133, Long Line, Dore, near Sheffield. Aug. 17, 1932, No. 23024. [Class 30.] A safety razor comprises a hollow-ground blade D having pivots B carrying flanged rollers E and supported in the sides of a U-shaped frame A, a wire spring F attached centrally to the back of the blade with its free ends passing through holes in the frame, and spring clips J which clip over the sides of the blade to hold it down in the shaving position against the pressure of the wire spring F. The spring clips J are carried on a U-shaped piece of wire attached centrally to the frame A and have downward extensions passing outside the frame and terminating in knobs L<1>, which are nipped together to allow the blade to assume a released position shown in Fig. 1. The guard comprises a grooved roller or a number of grooved rollers H on a spindle. The blade pivots B may be integral with, or brazed or soldered to, the blade. With the blade in the released position it may be stropped by running the flanged rollers E along the parallel upturned sides of a metal box containing a strop or stone. The wire spring F supplies the necessary sharpening pressure and the means for reversing the blade at the end of each stroke by dipping it into recesses at the ends of the strop. Extending side pieces at each end of the strop prevent damage to the cutting edge during reversal.
Patent GB-858566-A (GB)
Title: Improved instrument for use in making rugs and the like
Inventor: PILLINER BERNARD JOSEPH
IPC: D05C15/06
Filed: 1958-07-18
Abstract: 858,566. Sewing. READICUT WOOL CO. Ltd. July 3, 1959 [July 18, 1958], No.2312158. Class 112 A tufting tool comprises a tubular needle and a pair of co-operating cutter members pivotable transversely of the needle towards each other to cut yarn threaded through the needle when this is projected through a fabric sheet. A tubular needle 5 and yarn feed tube 4, aligned with but spaced from each other, are fixed in a mounting plate 1. A pair of scissor blades 11 are pivoted on plate 1 to move in the space between tubes 4 and 5. A tubular handle 2 is fixed at its respective ends to plate 1 and a cap 3 to which tube 4 is also fixed and in which a guide rod 10 is slidably mounted. A compression spring 14 interposed between cap 3 and a plate 7 fixed to rod 10 biases the needle assembly upwardly. A plate 12, attached resiliently at its upper end to plate 7, .is formed with a cam aperture engagable by the outer ends of the blades 11. A cam plate 13, disposed between blades 11, is rigid with rod 10 and carries two spaced sets of teeth which project through slots into tubes 4 and 5. A work-engaging shoe 9 on rod 10 carries one or more downwardly projecting pegs for locating the tool on-the fabric. Handle 2 is moved downwardly to project the yarn through the fabric, the yarn being fed by a barbed member 16 in tube 4. The blades 11 are moved together by the converging sides of the aperture in plate 12 to cut the yarn midway in the needle stroke. The blade ends then move clear of plate 12 and the diverging cam edges of plate 13 separate the blades. During the upward movement of the needle the teeth on plate 13 hold the yarn in the work. The ends of blades 11 first engage the bent lower end of plate 12 to move the latter outwardly, and do not enter the aperture in plate 12 until near the end of the upward stroke.
Patent GB-287396-A (GB)
Title: Improvements in chilled iron rolls
IPC: B22D15/00
Filed: 1927-09-02
Abstract: 287,396. United Engineering & Foundry Co., (Assignees of Walters, H. E.). March 23, 1927, [Convention date]. Rolling.-Rolls are made by casting high carbon iron containing chromium and molybdenum and having low sulphur and phosphorus in a chill mould. The percentage, of carbon is between 2.75 to 4.00, preferably 3.00 to 3.75; silicon 0.50 to 2.50, preferably over 0.75; manganese 0.15 to 1.50, preferably 0.20 to 0.80; phosphorus under 0.20, preferably under 0.10; sulphur under 0.20, preferably under 0.10; chromium 0.50 to 1.75, preferably 0.90 to 1.25; molybdenum 0.05 to 2.00, preferably 0.15 to 0.80. The silicon should be sufficient to give the unchilled portion of the roll a gray or mottled iron structure. Nickel, vanadium, or other metal to act as tougheners or scavengers may be added. A roll thus produced has a surface almost as hard as a cold roll containing large amounts of carbon and sulphur; also there is no clear line of demarcation between the core of the roll and chilled surface. The grain of both layers is very fine and the hardness 70 to 75 for the outer layer and 60 to 70 for the core on the Shore scleroscope scale. If the molybdenum is omitted a similar roll is produced but with a weaker grain structure and in such alloys the nickel must not exceed 0.25 per cent.
Patent GB-189537-A (GB)
Title: Improvements in seat sticks for queue, sporting and other like purposes
IPC: A45B5/00
Filed: 1921-09-01
Abstract: 189,537. Mills, W. Sept. 1, 1921. Folding seats.-In a walking-stick seat of the kind comprising a transverse seat member a supported on a single stick h, the seat member may be detached and replaced by a separate knob, crook or handle m to convert the stick into an ordinary walking-stick. Two sockets e, f arranged at right angles, or one socket e together with a second separate socket on one end of the seat member, may be provided on the seat a, so that the seat member itself may be secured on the stick to act as a handle, but in this case also a separate handle m is provided. The member k and the sockets with which it engages may be provided with coned portions l, s. Specification 116,442 is referred to.