baber/WOPTO huggingface dataset:
Patent GB-730151-A (GB)
Title: Reciprocating electromagnetic motor
IPC: H02K33/10
Filed: 1953-08-19
Abstract: 730,151. Reciprocating motors. BENDIX AVIATION CORPORATION. Aug. 19, 1953 [Aug. 25, 1952], No. 22909/53. Class 35. [Also in Groups XXVIII and XXXVII] In a plunger type reciprocating motor, particularly for a fuel pump, the energization of the windings is controlled by a permanent magnet on a non-magnetic support pivoted transversely of the plunger axis. As shown, the magnet 25, shaped and magnetized as shown in Fig. 2, moves towards the sleeve 1 in which the plunger 2 slides when the latter is moved to its upper position by spring 3 whereupon contact 19 on the magnet carrying cradle 22 pivoted at 23 engages the fixed contact 17 to energize the winding and cause a downward stroke of the plunger and a transfer of the permanent magnet flux to the casing 8 towards which the magnet and cradle move. The plunger carries a check valve 31 at its lower end and a second valve 32 is in a fixed cup 33 whereby reciprocation of the plunger causes liquid to be transferred from the inlet chamber 34 to the outlet chamber 35. Reference has been directed by the Comptroller to Specification 642,111.
Patent GB-1057986-A (GB)
Title: A mercury arc rectifier arrangement for a current converter
IPC: H02M7/15
Filed: 1964-06-03
Abstract: 1,057,986. Rectifying. ALLMANNA SVENSKA ELEKTRISKA AB. June 3, 1964 [June 11, 1963], No. 22920/64. Heading H2F. The ignition of a multi-anode rectifier arrangement during a low voltage start-up is improved by connecting an inductance 9 in series with the current divider 8 supplying the parallel discharge paths. Once one path ignites a counter-voltage is induced in the inductance, which raises the potential of the intermediate electrodes, connected to the voltage divider, with respect to the cathode, so making the ignition of the remaining paths easier. The voltage dependent resistor 10 (varistor) maintains the induced voltage across the inductance for a longer period. In an alternative arrangement, Fig. 2 (not shown) the inductance is a transformer, with the anode current flowing through the primary winding and the voltage dividers connected to the secondary winding. A bias winding may be used with the transformer to counteract the magnetization of the anode current. In both arrangements the inductance can be connected on the cathode side of the rectifier.
Patent GB-500740-A (GB)
Title: Improvements in, or relating to, lubricating systems, and pumps for use therein
IPC: B60R17/02
Filed: 1937-08-21
Abstract: 500,740. Reciprocating pumps. PILGRIMS WAY MOTOR CO., Ltd., GRAVENOR, J., and ARMITAGE, E. L. Aug. 21, 1937, Nos. 22951 and 36062. [Class 102 (i)] [Also in Group XXXIV] A lubricating-pump a has a plurality of bores 2 extending directly from a lubricant supply passage 3, each bore 2 containing a piston 5, the stroke of which is controlled by the end of a discharge nipple 8 housing a non-return valve 9 and having a pipe d leading to a bearing. A lubricant duct 14 from a reservoir 10 communicates by ducts 16 with each bore 2, the reservoir 10 being formed as an air bell and being connected through a non-return valve 13 to the supply passage 3. As shown in Fig. 1, for a motor car chassis, pumps a are connected by pipes c ... c<5> to a pump b manually or mechanically actuated. During a discharge stroke of the pump b the oil pressure in the pipes c ... c<5> and passage 3 increases and the pistons 5 make a discharge stroke. Thereafter, the valve 13 opens and the reservoir 10 is recharged. During the suction stroke of the pump b, the pistons 5 are returned and the bores 2 are recharged with lubricant from the reservoir 10. The latter may be fitted with a piston. In a modification, the duct 12 leading to the valve 13 is open to the passage 3 only after one of the pistons 5 has made its stroke, and the duct 14 intersects the bores 2 so as to dispense with the ducts 16.
Patent GB-1471439-A (GB)
Title: Servo-assisted fluid supply systems
IPC: B60T11/32
Filed: 1974-05-22
Abstract: 1471439 Servo-assisted braking systems BENDIBERICA SA 22 May 1974 [23 May 1973] 22964/74 Heading F2F [Also in Division G3] A plurality of master cylinders 9, 10 supply working fluid to respective outputs, their inputs accepting high pressure control fluid which is supplied via servo-valve means for a single cylinder servomotor 1 common to the cylinders the valve means holding chambers 3, 4 on either side of a piston of the servomotor at equalized lower pressures and allowing higher pressure inflow to one chamber 3 upon increase in master cylinders' pressure, selector means being associated with or incorporated in the valve means to allow the higher pressure inflow upon requisite pressure increase in any master cylinder even if another master cylinder does not have such increase therein. Fig. 1 shows brake pedal operated tandem control cylinders 19 controlling respective master cylinders 9, 10 and supplying control fluid to inlets 55, Fig. 4, of respective servo-valves 24, 25. When not actuated by control fluid, each valve 24, 25, Fig. 4, maintains communication between a chamber 4 of the motor 1 via an inlet 23, a valve orifice 43, and an outlet 57 to an opposed motor chamber 3, the equalized chamber pressures being below atmospheric determined by a vehicle manifold 22. Upon actuation, a piston 51 in each valve, 24, 25, acts on a rod 50 to move a diaphragm 41 and the valve orifice 43 against a disc 39 to stop communication between the chambers 3, 4 and moves a disc 30 from a seat 29 to allow atmospheric air to pass to the chamber 3 via the outlet 57. The outlets of the valves 24, 25 are connected to a selector valve 60 whereby if one valve is not actuated to control pressure failure, a ball is pressed against a seat blocking the outlet, allowing the other outlet to supply the chamber 3 with atmospheric pressure air. Alternatively, a selector valve shown in Fig. 7, which operates in a manner similar to the valve 60, connects the control inlets to the master cylinders 9, 10 with the control inlet 55 of a single servo-valve for the motor 1. A further alternative is a single servo-valve being provided with two control inlets associated with respective master cylinders, the fluid of each acting on a respective piston acting on the rod 50. An accumulator 66, comprising a piston with each force exposed to the output from a respective master cylinder, takes up minor output load variations, but does not accommodate the pressure difference resulting from the failure of one of the outputs. The servomotor 1 may be a pressure fluid motor and may use hydraulic fluid.
Patent GB-795425-A (GB)
Title: Improvements in or relating to high-tension supply circuit arrangements
IPC: H04N3/185
Filed: 1956-07-25
Abstract: 795,425. Automatic regulation. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 25, 1956 [July 28, 1955], No. 22996/56. Class 38 (4). In a system for stabilizing the E.H.T. supply to a cathode-ray tube by a shunt regulating valve, the valve is controlled by the mean direct current flowing in the A.C. circuit of a rectifier providing the E.H.T. supply. The cathode-ray tube 10 is supplied by a rectifier 5 from the secondary winding 4 of a transformer. The primary winding 2 of the transformer is the anode load of a valve 1 which may be operated either as a free-running sinusoidal oscillator or, as shown, as a sawtooth amplifier. The transformer windings 2, 4 are linked by a resistor 7 shunted by a capacitor 9 so that the voltage drop across the resistor 7 is equal to the mean direct current supplied by the rectifier. This voltage is applied to the grid of a triode 12 shunted across the cathode-ray tube is in such a sense that if the tube current increases, the triode current decreases, so as to compensate for voltage variations. Transient variations are reduced by an integrating network 13, 14.
Patent GB-668424-A (GB)
Title: Improvements in or relating to metal presses
IPC: B22F5/10
Filed: 1949-09-07
Abstract: 668,424. Forging-dies; mandrels. FORD MOTOR CO., Ltd. Sept. 7, 1949 [Jan. 13 1949], No. 23164/49. Class 83 (iv). In a metal punching machine for re-striking hollow cylindrical objects, including a core rod 11, an upper punch 14, a lower punch 18, and a die cavity 20, the core rod 11 and the lower punch 18 are interconnected so that no relative motion is possible between the core rod and the hollow cylindrical object, e.g. a bushing 16, until the object is clear of the die cavity. For this purpose the flanged upper end of the core rod 11 is so attached by a retaining plate 12 to a ram 10 as to allow slight axial movement between the core rod 11 and the plate 12. The bushing 16, which may have been produced by pressing and sintering powdered metal; is placed above a guide 19 and ram 10 descends and thrusts core rod 11 entirely through the bore of the bushing until its lower end enters the cavity 20 in the upper end of the lower punch 18. In its descent the ram 10 strikes the holder 15 of the punch 14 to force the latter downwardly to perform the restriking operation. The finished bushing is ejected by the upward movement in synchronism of the lower punch 18, core rod 11 and upper punch 14, the ram 10 being operated directly by a crank which operates the lower punch 18 through a linkage system.
Patent GB-154742-A (GB)
Title: Improvements relating to the purification of gas
IPC: C10K1/02
Filed: 1919-09-20
Abstract: 154,742. Holt, C. E., and Burgoyne, J. S. Sept. 20, 1919. Sieves and screens, forms and construction of.-A helical screen of wire gauze or other material is used in purifying gas. The screen casing comprises two frusto-conical parts a, a<1>, and the screen h, which is of varying diameter, has a coarser mesh at the inlet end b than at the central part; the mesh in the part a<1> may increase in coarseness or not towards the outlet g. A steam or water jacket may be provided about the casing.
Patent GB-258620-A (GB)
Title: Safety apparatus to prevent the theft of automobiles
IPC: B60R25/042
Filed: 1926-09-20
Abstract: 258,620. Mirault, A., and Kientzi, G. Sept. 21, 1925, [Convention date]. T'oid [Published under Sect. 91 of the Acts]. Closure members.-A valve device for use on the fuel supply pipes of motor road vehicles to prevent theft comprises a series of plugcocks arranged in series and provided with cipher indicators. In the form shown three plugs 2, 2<1>, 2<11> are arranged, to seat one within the other and are provided with cylindrical extensions 5, 5<1>, 5" fitted with indicating drums 3, 3<1>, 3<11>. In a modification separate plugcocks are employed. The drums may be removably mounted on the cylindrical parts so that the combination may be altered.
Patent GB-1100877-A (GB)
Title: Preparation of polyesters
IPC: C08G63/83
Filed: 1965-06-01
Abstract: In the manufacture of highly polymeric polyesters by reacting a free aromatic dicarboxylic acid with a molar excess of a C2 to C10 polymethylene glycol or a polyester-forming derivative thereof, reaction is effected in the presence of an alkali metal salt of an inorganic acid having an ionization constant greater than 1 x 10- 3 at 25 DEG  C., e.g. sulphuric, nitric, hydrochloric, hydrofluoric, iodic or phosphoric acid.  Reaction may also be effected in the presence of catalysts (e.g. zinc glycoloxide or antimony compounds) and titanium dioxide.  Many aromatic dicarboxylic are mentioned but the examples relate to reacting terephthalic acid with ethylene glycol.
Patent GB-483960-A (GB)
Title: Improvements in surgical basins
IPC: A61G9/00
Filed: 1937-08-24
Abstract: 483,960. Spittoons; bed-pans. POLLOCK, J. C. Aug. 24, 1937, No. 23226. [Class 26] [Also in Group XVII] A spittoon or bed-pan of sheet metal, moulded plastic material, &c. comprises two pan portions 1 arranged in reverse relation to one another, so that the exterior bottom surface 3 of the pan not in use affords a rest for the head or other part of the body of the user, land separated by a sloping partition wall 2 of curved form. Inwardly projecting lips 4, 5 around the mouths of the pans act as guards against splashing.
Patent GB-628082-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B11/08
Filed: 1947-08-21
Abstract: 628,082. Centrifugal machines. JENNINGS, H. W. K. (Western States Machine Co.). Aug. 21, 1947, No. 23234. [Class 23] A plough 27, for cutting sugar from the interior of a perforated basket 10 of a centrifugal separator, is rigidly secured to the lower end of a bar 20 slidingly mounted in guides in a bracket 14 which is above the top of the basket. The plough may be as described in Specification 419,270 and has a resiliently mounted tool 27a. The plough is secured to a part 23 which projects laterally from the bar 20 so that the plough can pass the guides in its raised position. Liners 28, 29 and a cover piece 30 are provided for adjustment of the guide passage. The bar 20 is formed with rack teeth which engage a pinion 25 on a shaft in the bracket 14 so that the bar can be raised and lowered by means of a hand-wheel 26. The boss of the hand-wheel contains a helical spring which counterbalances the weight of the bar 20 and plough. The bracket 14 is turned to bring the plough into cutting position by means of a handle 36 fixed to it. The handle is a resilient strip and normally rests between a shoulder 38 and a screw head 39. When the handle is bent upwards it can be moved over the head 39 into the dotted line position to bring the plough into the final cut position. When the plough has been raised, the same movement swings the plough over the top of the basket. The bar 20 may be a round shaft splined to the bracket 14 or may be of hollow triangular section built up of strips of stainless steel. The bracket 14 may have a rigid handle and an adjustable stop engaging a block on the casing. The block can be moved out of the way to permit the outward swinging of the plough.
Patent GB-656520-A (GB)
Title: Improvements in vehicles for delivering goods in measured quantities
IPC: G01G13/00
Filed: 1950-04-21
Abstract: 656,520. Vehicle fittings for unloading. MERWEDE, W. J. S. VAN DER, and MERWEDE, J. F. S. VAN DER. April 21, 1950, No. 23240/47. [Class 78 (iv)] [Also in Group XVIII] A vehicle, which is substantially the same as that described in Specification 646,109, for transporting in bulk and delivering at different points measured quantities of dry goods that are in such a state of division that they will slide under gravity down a shoot forming part of the vehicle, said vehicle being provided with devices whereby an operation of weighing a quantity of said goods and bringing the same to a place favourable for subsequent manipulation may be performed, is characterized in that there are provided means for automatically counting the number of such operations. The mechanism for counting the number of delivery operations comprises a freely rotatable grooved pulley 42, engaged by the load-lifting cable 40, the pulley being formed on one face with a spiral track 43 upon which runs a roller 44 supported by a cranked lever 45 pivoted at 46 to the frame of the vehicle. The lever 45 extends into a counting mechanism 48 of known design which may give a visual indication of the number of operations performed by means of dials 49, 50 and may include audible or visual signalling means automatically actuated upon completion of each loading operation.
Patent GB-1400484-A (GB)
Title: Measuring system
IPC: G01G23/36
Filed: 1972-05-17
Abstract: 1400484 Photo-electrically indicating weight DR JOHANNES HEIDENHAIN 17 May 1972 [18 May 1971] 23267/72 Heading G1A In weighing, the deflection of a non-linear scale 2 is converted into a digital representation of the weight by two photo-electric circuits having respective fixed grids 8, 9 parallel to the lines of scale 2 and mutually offset by approximately “ the line spacing of scale 2.
Patent GB-614862-A (GB)
Title: Improvements in or relating to overhead electric cable power transmission systems
IPC: H01B11/18
Filed: 1946-08-07
Abstract: 614,862. Transmission line arrangements. PIRELLI - GENERAL CABLE WORKS, Ltd., and JORDAN, R. J. Aug. 7, 1946, No. 23436. Drawings to Specification. [Class 38 (iv)] [Also in Group XXXVI] The earth conductor of an overhead power transmission system includes a central insulated conductor and an outer conductor, said outer conductor being earthed and forming, together with the inner conductor, a coaxial cable for carrying communication channels. Power for amplifying equipment and the like may be supplied from the transmission system. Specification 415,400 is referred to.
Patent GB-587501-A (GB)
Title: Improvement in fluid pressure control mechanism
IPC: F02D11/08
Filed: 1944-11-27
Abstract: 587,501. Lever mechanism. BENDIXWESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. Nov. 27, 1944, No. 23651. Convention date, Feb. 17. [Class 80 (iii)] [Also in Group XXIX] The connection between a fluid-pressure actuator 28 and a throttle valve 6, includes a lever 32 which can pivot about either of two points 38, 39, and no matter whether the lever moves in the clockwise or anti-clockwise direction from its neutral position, the resultant movement imparted to the throttle valve through the medium of the spring-pressed link 40 will cause the throttle to open. As shown, the closed position of the throttle corresponds to the neutral position of lever 32 and to the neutral position of servo-piston 28. Should the compressed air supply fail, the loading spring 29 of the servopiston will force the latter downwards, the lever 32 will pivot about point 38 and the throttle will be opened slightly so that the engine can be started again although no air pressure will be available to open the throttle the amount requisite for starting. During normal running, air under pressure is supplied to the servopiston and the latter rises to cause lever 32 to pivot about point 39 and so open the throttle the amount required. An adjustable stop 46 limits the opening movement of the throttle on failure of the compressed air supply.
Patent GB-1343206-A (GB)
Title: Electric hand hammer
IPC: B25D17/06
Filed: 1971-04-19
Abstract: 1343206 Percussive tools ROBERT BOSCH GmbH 19 April 1971 [12 March 1970] 23689/71 Heading B4C A percussive hand tool comprises a reciprocable striker 13 driven by means of an electric motor driven crank 20 and a driving piston 16 connected to the crank. Under normal operation, with the tool pressed against a work surface, the cylindrical forward end 30 of the striker enters reduced diameter portion 26 and compresses air in the volume 25. The compression of air in the volume assists in the return motion of the striker. When the tool is withdrawn from a work surface, the cylindrical forward end 30 of the striker enters the volume 25 and the air compressed therein escapes between the portion 26 and the reduced peripheral section of the striker rearwardly of the forward end 30. The escape of air reduces the forces acting on the striker in the return direction at the end of an impact stroke, and should the striker rebound so that its forward end 30 re-enters the portion 26 a partial vacuum will now be created in the volume 25. Thus termination of the reciprocation of the striker will rapidly occur upon the tool being withdrawn from the work surface. As illustrated, the striker rearwardly of the end 30 has four flats 28, and eight arcuate guiding surfaces 29 which slidingly engage the bore 12.
Patent GB-1059098-A (GB)
Title: Improvements in and relating to shaft sealing arrangements
Inventor: LITTLE JOHN ARCHIBALD
IPC: F16J15/40
Filed: 1964-06-09
Abstract: 1,059,098. Shaft seals. C. A. PARSONS & CO. Ltd. Feb. 26, 1965 [June 9. 1964], No. 23930/64. Heading F2B. In a sealing arrangement for a rotary shaft where it extends through a gas-containing enclosure, e.g. in a gas circulator or a turbine driven gas-cooled electric generator, and comprising a sealing ring 2 having a sealing face which contacts a collar 3 on the shaft and is formed with radial grooves through which oil under pressure is circulated, means are provided to maintain a fixed pressure difference between the oil pressure and the gas pressure over an upper range of gas pressures and to maintain the oil pressure constant over a lower range of gas pressures. Oil is fed from a tank 1 to the seals A and B by a pump 11 and the oil pressure is kept at a fixed amount above the gas pressure over an upper range of gas pressures by a spring-loaded differential control valve 4 and maintained at a constant minimum value over a lower range of gas pressures by a spring-loaded relief valve 8 fitted upstream of the valve 4 in the oil circuit.
Patent GB-788659-A (GB)
Title: Improvements in or relating to electroluminescent devices
IPC: H05B33/14
Filed: 1954-08-17
Abstract: 788,659. Electroluminescent materials. GENERAL ELECTRIC CO., Ltd., BATE, H. C., and BOWTELL, J. N. Nov. 17, 1955 [Aug. 17, 1954], No. 23932/54. Class 39(1). Small crystals of an electroluminescent phosphor individually provided with a transparent and translucent surface coating of an electrolyte of greater conductivity than the phosphor are pressed together into a compacted layer without any added dielectric material and placed in contact with enclosing electrode layers. The surface coating is preferably applied by wetting the crystals with an aqueous solution of. an electrolyte, e.g., one of the silicates, chlorides, sulphates, nitrates, chlorates, carbonates, phosphates, chromates and dichromates of sodium and potassium, sodium hydroxide, ferrous chloride, ferrous sulphate, ferric nitrate, stannous chloride, zinc chloride, ammonium chloride, ammonium sulphate, cupric chloride, cupric sulphate, silver nitrate, acetic acid, lead nitrate, lead acetate and aluminium chloride. The crystals are dried by gentle heat, preferably retaining a trace of moisture, before being placed between conducting surfaces, e.g. glass plates with conducting layers and compressed to a level permitted by rubber spacers. The phosphor may be ZnS/Cu, ZnS/Cu Mn or ZnSIO 3 /Mn, and the coating electrolyte is preferably copper chloride, potassium silicate or sodium phosphate.
Patent GB-338116-A (GB)
Title: Improvements relating to the ventilation of sewers
IPC: E03F5/08
Filed: 1929-08-06
Abstract: 338,116. Lloyd, W. O. Aug. 6, 1929. Disinfecting air and gases. - A disinfecting device for use in connection with sewer vent pipes comprises a rectangular box 2, preferablv of cast iron, adapted to be built into the vent pipe and provided with a removable disinfectant container consisting of a wire frame 10 covered wit.h gauze 11, the frame being provided at the bottom with extensions 10<a> adapted to engage the box and position the container centrally therein, thus providing for a free circulation of air around the container. The box is provided with a hinged door 4 secured by a swivelled thumb screw 5, and with branch pipes 8, 9 for the reception of the two parts of the vent pipe.
Patent GB-747638-A (GB)
Title: A combination article of furniture
IPC: A47K13/06
Filed: 1953-08-31
Abstract: 747,638. Nursery seats ; tables. EGLIN, H. Aug. 31, 1953 [Aug. 29, 1952], No. 23959/53. Classes 52(1), 52(2) and 52(3). [Also in Group I] An article of furniture for use as a table, chair or child's toilet seat comprises a seat 3, apertured at 8, and a cover 4, hinged to one side of the seat to provide a backrest when in the raised position, rigid side stays 15, 16 being secured, at one end, to the hinged cover and, at the other end, passing through guiding apertures in the seat. The cover 4 is locked in raised and in lowered position by a pin and angle-slotted plate 5 and a band 22 extends between the side stays to support the child, a guard 10 being secured to the band and to a hook 9 on the underside of the seat. In a modification the legs 2 are formed in pairs from tubular metal and are adjustable in length. When the cover is closed the device is used as a child's table or as an adult's seat.