baber/WOPTO huggingface dataset:
Patent GB-256399-A (GB)
Title: Improvements in and relating to time controlled driving mechanism for recording surfaces
IPC: G01D15/24
Filed: 1925-08-14
Abstract: 256,399. Sutherland, W. C., and Denton, J. Aug. 14, 1925. Recording by distinctive marks; feeding and driving means.-In a time controlled driving mechanism for a recording surface the main driving spring is maintained at a regular wound up tension the power exerted thereby being controlled by a friction brake device so that the recording surface is caused to travel at a uniform rate. The winding up is controlled by a ratchet wheel the pawl of -which is actuated bv the recoil of a spring liberated by the cutting off of the current of an electromagnet. In the form shown, Figs. 1, 2, 5, a record-strip 2 is fed from gripping rollers 3, 4 the upper one of which is actuated through worm gearing 5, 6, and a ratchet wheel 8 by a pawl 9 on the armature 10 of an electromagnet 11 energized at regular time intervals under the control of a friction governor, The armature 10 is returned by means of a spring 12 and during this period a second pawl 17 thereon actuates a ratchet wheel 16 on a spindle 13 to which is attached one end of the main spring, the other end being secured to the barrel 15. Integral with the barrel 15 is a wheel 14 gearing with a pinion 18 - on a shaft 19; the ratio of the gearing is such that the spindle 19 and the rotary switch 20 thereon for the electromagnet 11 is rotated through one half revolution for each tooth advance of the ratchet wheel 16. A wheel 22 fixed on the shaft 19 through gearing 23, 25, 26 drives a spindle 27 upon which is mounted a controlling disc 28 having pivotal arms 29 for engagement with an adjustable brake spring 30 so as to regulate the movements of the wheel 14. To ensure the main spring being fully wound the teeth of the wheel 16 are arranged to be one less in number than that required for driving the shaft 13 one revolution in a given period. The increase in the number of revolutions of the shaft 13 as compared with those of the wheel 14 is rectified by the pawl 17 failing to act once in each revolution.
Patent GB-1383389-A (GB)
Title: Diverter switches or selector switches
IPC: H01H9/00
Filed: 1972-05-02
Abstract: 1383389 Transformers SMIT NIJMEGEN ELECTROTECHNISCHE FABRIEKEN NV 2 May 1972 [3 May 1971] 20407/72 Heading H1T A diverter switch or selector switch having fixed contacts for connection to transformer tappings direct or through an off-load selector switch and having fixed contacts 2, 3, 4 (Figs. 2 and 4) and a movable main contact 5 rigidly interconnected with movable auxiliary contacts 6a, 6b, 7a, 7b with which move transition impedances 8a, 8b, 9a, 9b, the auxiliary contacts being movable in different parallel paths past the fixed contacts 2, 3, 4. The fixed contacts 2, 3, 4 may be at different positions on bars arranged perpendicularly to the paths of the movable contacts. The selector switch may be of rotary form (Fig. 5, not shown). Other arrangements described include one with the transition impedances in series, one with two interconnected main contacts, one of which moves over the same path as one of the pairs of auxiliary contacts and an asymmetrical arrangement in which auxiliary contacts are provided on one side of the main contact (in the direction of contact movement) (Fig. 9, not shown).
Patent GB-747253-A (GB)
Title: Improvements in or relating to refrigerated heat-insulated containers
IPC: F25D17/04
Filed: 1952-08-14
Abstract: 747,253. Refrigerators. JABLONSKY, B. Nov. 12, 1953 [Aug. 14, 1952], No. 20464/52. Class 29. A refrigerated container is provided in or on its walls with compartments 3 for containing solid carbondioxide and provided with shutters having controls, the shutters when opened putting the compartments into direct communication with the main part of the container. As shown in Fig. 1, each corner of the container has a compartment 3 defined by a wall 2 which has apertures 2a occluded by an apertured shutter 4 which can be moved to open position either by an external handle 5 or by thermal means responsive to the temperature in the container. The lid, Fig. 2 (not shown), may contain further compartments operating,in the same manner and adapted to be loaded from the outside with refrigerant through a subsidiary lid. The container may form part or all of the storage space of a land, air or sea vehicle. In a modified form, Fig. 3, a show case 28 having a glass front 29 is cooled by refrigerant compartments 32, the apertures in which are occluded by the showcase lid 33 when it is slid back. Specification 711, 771, [Group XXXIII], is referred to.
Patent GB-148538-A (GB)
Title: Blasting cartridges that are saturated by means of liquefied gases and method or wayof making and producing them
IPC: F42B3/28
Filed: 1920-07-10
Abstract: 148,538. Sokal, S., (Sprengluft-Ges.). July 10, 1920. Drawings to Specification. Blasting-cartridges.-Relates to cartridges impregnated with liquid air or other liquefied gas, and consists (1) in making the envelope or casing of the cartridge of pervious paper such as filter or blotting-paper or paper provided with perforations or pervious patches, and (2) in cooling the cartridge before it is impregnated with the liquid air.
Patent GB-1537403-A (GB)
Title: Servo-assisted hydraulic master cylinder
IPC: B60T13/24
Filed: 1976-05-19
Abstract: 1537403 Servo-assisted hydraulic master cylinders AUTOMOTIVE PRODUCTS Ltd 27 April 1977 [19 May 1976 19 March 1977] 20569/76 and 11753/77 Heading F2F A servo-assisted hydraulic master cylinder comprises a driver-controlled servo valve member 22, Fig. 1A, in a servo valve housing 21, a first piston 41, Fig. 1B, and a second piston 46, in the master cylinder 11, adapted to be moved by the servo valve member 22 and the servo valve housing 21 respectively, first and second ports 61 and 67, Fig. 1B, for connection to a tank 62 and a brake actuator (not shown) respectively, a first chamber 55 in the master cylinder connected to the ports, movement of the servo valve member 22 in a brake-applying direction shutting off communication between the first chamber 55 and first port 61 and causing the first piston 41 to reduce the volume of the first chamber 55 to create brake-applying pressure at the second port 67, a second chamber 57, Fig. 1B, in the master cylinder connected to the first port 61, movement of the second piston 46 in the brake-applying direction shutting off communication from the second chamber 57 to the first port 61 and varying the volume of the second chamber 57, a first non-return valve 64 allowing communication from the second chamber 57 to the first chamber 55, a second non-return valve 78 allowing communication from the first port 61 to the second chamber 57, and a metering valve 46, 51, having a metering valve member 46 which is responsive to pressure in each of the first and second chambers to progressively vary the pressure in the second chamber 57 over a range of pressures in the first chamber 55, displacement of hydraulic fluid from the first chamber 55 through the second port 67 beginning at a high rate with respect to brake-applying movement of the servo valve member 22 and reducing to a low rate when the metering valve 46, 51, becomes operative; the arrangement is such that while the source pressures 24 (vacuum) and 32 (atmosphere) about the movable wall 18 are maintained, driver effort on the servo valve member 22 produces a pressure in the first chamber 55 substantially proportional thereto, and in the event of failure to maintain the source pressures, the change from the high rate of displacement to the low rate occurs at a substantially unaltered pressure in the first chamber 55.
Patent GB-456649-A (GB)
Title: Water circulating device for use in hot water tanks and cylinders
IPC: F24H9/12
Filed: 1936-07-24
Abstract: 456,649. Hot-water cylinders. WATSON, A. R., Yewlands, Foreland Road, Bembridge, Isle of Wight. July 24, 1936, No. 20577. [Class 64 (i)] In a circulator for hot-water cylinders comprising three concentric tubes spaced apart by connection at their upper ends to a stepped collar 7, the intermediate tube 2 is connected by screws 5 to a screwed coupling 4 on the return pipe of the boiler, the heads of the screws 5 providing distance pieces between the tube 2 and the outer tube 1. The inner tube 3 is held concentric at its lower end by lugs 8 extending from it, and may be perforated near the top 6, so that water returning to the boiler from the top of the cylinder draws water from the bottom of the cylinder up between the tubes 1, 2 and down between the tubes 2, 3 into the stream to the boiler.
Patent GB-771200-A (GB)
Title: New lysidine salt and process for its preparation
Filed: 1955-07-15
Abstract: The invention comprises lysidine gentisate and its preparation by reacting gentisic acid with lysidine in a solvent.  Specified solvents are aliphatic alcohols and benzene hydrocarbons; or the reaction may be carried in an aqueous medium, the water being subsequently evaporated off.  In an example the reaction is carried out at 70 DEG  C. in ethyl alcohol, from which the product crystallizes.
Patent GB-628355-A (GB)
Title: Process of moulding balls of ore material
IPC: C22B1/24
Filed: 1947-07-30
Abstract: 628,355. Agglomerating ores. ERIE MINING CO. July 30, 1947, No. 20634. Convention date, June 15, 1944. [Class 82(i)] A process for moulding, balls from moistened finely divided ore material comprises providing a supply of uniformly moistened divided ore material having a considerable range of particle sizes including a large proportion of particles smaller than 44 microns in diameter, maintaining an adhered layer of the material against the internal surface of a slowly rotating rotary drum, continuously scraping the adherent layer to a smooth even surface and feeding discrete nuclei of the said moist finely divided ore material on to the said layer whereby the discrete nuclei of material roll over the surface of the layer and slowly grow into dense, mechanically strong balls by gradual accretion of particles of the material. Fig. 4 shows a rotary drum 4 provided with an ore feed chute 24 and with annular ribs 11 and scraper blade 12 which serve to maintain a smooth adherent layer of moist ore. Discrete ore nuclei, which may be undersized balls produced by the process, are fed with ore through chute 12 and in their travel to the lower end of the drum grow by accretion. The drum may rotate to have a drum surface velocity equivalent to that of a three foot diameter drum rotating at 12-15 revolutions per minute. The agglomerated product is fed on to screens 15, 16 and 18 where it is separated into oversized balls, required product and undersized balls. The agglomeration may terminate when about half the balls produced are undersized. When the process is applied to pulverulent magnetite concentrate, a suitable moisture content is 8-11 per cent by weight.
Patent GB-614341-A (GB)
Title: Improvements in or relating to liquid fuel systems for gas turbines
IPC: F02C7/264
Filed: 1946-07-10
Abstract: 614,341. Gas turbine fuel systems. RAWLINSON, G. H. C. July 10, 1946, No. 20673. [Class 110 (iii)] Fuel for a gas turbine is drawn from a tank 10 by an electrically driven centrifugal booster pump 11 and delivered to a main fuel pump 12 driven by the turbine. During starting, fuel is supplied to a torch igniter 24 direct from the booster pump which during the starting operation is run at an increased speed. The increased speed is secured by inserting a resistance 21 in the field circuit 16 of a shunt-wound motor 15 driving the booster pump 11. An automatic time switch 28 controls the starting motor and the operation of the torch igniter and closes at 26 the circuit of a relay 22. The armature 20 normally bridges contacts 18 in the field circuit 16 and, when the relay 22 is energized, the circuit is broken at 18 and remade by bridging contacts 19 which are in circuit with a resistance 21. After a time interval, the switch 28 terminates the starting operations. The torch igniter comprises a spark gap, across which a high voltage is applied, and an electromagnetically-operated valve controlling the flow of fuel across the spark gap.
Patent GB-1165785-A (GB)
Title: Protective Cage for Two-for-One Spindles
IPC: D01H1/42
Filed: 1967-05-04
Abstract: 1,165,785. Two for one twisting. PALITEX PROJECT-CO. G.m.b.H. 4 May, 1967 [6 May, 1966; 13 April, 1967], No. 20673/67. Heading DID. A protective cage for a two for one spindle equipped with magnet 6 has at least one recess 11 adjoining the upper surface of the base 4 of the cage whereby the lower edge of the recess is substantially in line with the upper, outer edge of the spindle rotor 3 so that the air currents produced by the spindle rotor produces a suction effect through the recesses to clean the cage. As shown two recess are provided but more e.g. four (Fig. 1 not shown) may be used. In Fig. 3, not shown, the magnet are placed on the floor of the cage and are covered by a false floor which on its other side forms a duct leading to a recess in the cage wall.
Patent GB-142889-A (GB)
Title: Improvements in bakers' ovens
IPC: A21B1/48
Filed: 1918-12-12
Abstract: 142,889. Baker & Sons, J., Kirman, H., and Taroni, C. E. Dec. 12, 1918. Bakers' ovens.-In a travelling-sole oven, the return run of the sole is supported by a number of endless chains f driven merely by frictional contact with it and arranged in rows both transversely and longitudinally of the oven. The supports for the chains consist of a pair of end guides g connected by a longitudinal member h and mounted on angle-irons i secured between the side frames.
Patent GB-570195-A (GB)
Title: Improvements in magnetic separators
IPC: B03C1/08
Filed: 1943-12-13
Abstract: 570,195. Permanent magnets. DEHN, F. B. (Richmond Manufacturing Co.). Dec. 13, 1943, No. 20826. [Class 35] [Also . in Group II] In a magnetic separator of the shoot type, the shoot 15 is provided with an opening 16 in which is a holder containing the separator proper 17 and with a feed-regulating gate 18 and a baffle 19 of flexible material to direct the material to be treated on to the separator 17. The separator is formed of magnetic blocks 21, 22 composed of an alloy containing iron, cobalt, nickel, aluminium and manganese, as described, e.g. in U.S.A. Specification 2,027,996, separated by poles 23, 24, 25, the blocks 21, 22 being tapered. as shown in Fig. 4, so that their smaller ends abut against the leg 30 of the pole 24 and the larger ends against the legs 35, 40 of the poles 23, 25 respectively. The assembly is held in position in the holder 20 by bolts 50, 51 and the poles 23, 24 are arranged so that between them is formed a gap 37 filled with non-magnetic material 47 and the poles 24, 25 so that there is a gap between the bevelled end 70 of the pole 24 and the bevelled end 71 of the leg 41 of the pole 25, the leg 41 being arranged at a low level. Non-magnetic blocks 45, 46 are secured between the legs of the poles and on the faces of the magnets 21, 22 by the bolts 50, 51. The holder 20, Fig. 3, is provided with ears 56 which are pivotably mounted on a rod 57 carried by brackets 58 secured to the underside of the floor of the shoot 15 and is detachably secured at its opposite end to the shoot 15 by a fastening device 59. The magnets 26, 27 may be replaced by a pair of blocks of the same shape, the sum of the width of the blocks at their larger ends being not less than 80 per cent of the length of the poles 23, 25. In a modification, the holder 20 may be hinged to the underside of the lower part of the shoot 15 and is provided with a metal covering plate hinged to the opposite end of the holder.
Patent GB-642137-A (GB)
Title: Improvements in boiling pans
IPC: A47J27/17
Filed: 1947-07-31
Abstract: 642,137. Boiling pans. STEEN, C. A. July 31, 1947, No. 20839. Convention date, June,'21, 1939. [Class 64(1)] [Also in Group XVII] A boiling pan has a vessel 2 detachably mounted in a jacket 1 having around its mouth a sealing ring 8, of rubber &c. which is fastened, along its whole circumference, to the inner face of the jacket 1 as by a metal ring 10 pressing a skirt 14 on the ring 8 into a groove 15, and the ring 8 has an inturned margin 12 contacting the underside of a flange 7 on the vessel 2. The latter is heated by steam generated in the jacket space 3 or fed thereinto by a pipe 4. The ring 8 may have a shank 13 resting on a surface 9 around the mouth of the jacket. The vessel and jacket may be locked together by turning latches 11 over the flange 7. The jacket may be heat-insulated.
Patent GB-168219-A (GB)
Title: Improvements in picks
IPC: B25G3/02
Filed: 1920-07-12
Abstract: 168,219. Hardy Patent Pick Co., Ltd., and Short, J. E. July 12, 1920. Fixing by T-sockets with clamping and contracting devices.-In picks of the kind in which the blade is secured in the socket by means of a wedge, means for detachably fixing the shaft comprises a slit formed in each side-cheek of the socket and a clamping-ring adapted to engage the open end of the socket. The socket a has in each of its side-cheeks a slit a<2> open at the lower end and closed at the top. The action of driving in the usual wedge c, which secures the blade b in the socket, has the effect of opening out the free end of the socket so that the shaft d can be inserted. The wedge is then released so that the sccket closes and grips the shaft, and a ring e is hammered over the end of the socket. The wedge is again driven in to secure the blade and prevent the ring from leaving the socket.
Patent GB-979727-A (GB)
Title: Improvements in microscopes
IPC: G02B21/00
Filed: 1962-05-30
Abstract: 979, 727. Microscopes; lens mounts. G. A. D. GORDON. May 28, 1963 [May 30, 1962], No. 20875/62. Heading G2J. In a microscope the lens mounting 1 of magnetic material which contains the objective A and eyepiece B is carried by a support 7 so that it may vibrate along the optical axis thus enabling a specimen to be seen in 3D by persistance of vision. The vibrations are induced by passing A.C. and D.C. currents respectively through the coils 11, 12 which surround the lens mount 1 and its support 7. The frequency of the vibrations may be varied between 1 and 16 c.p.s. and the amplitude of the vibrations may be varied also.
Patent GB-1520708-A (GB)
Title: Activated catalysts for oxidation reactions
IPC: C07D307/60
Filed: 1977-05-18
Abstract: 1520708 Oxidation catalyst LONZA Ltd 18 May 1977 [21 May 1976] 20878/77 Heading B1E [Also in Divisions Cl and C2] An activated catalyst for oxidation reactions comprises mixed oxides of vanadium and phosphorus, with the vanadium present in an average valency state of less than +3.9. Another oxide, e.g. titanium dioxide may also be present. The catalyst is activated at 300- 500C with a gaseous hydrocarbon containing 2-6 carbon atoms with the exclusion of molecular oxygen. A deactivated catalyst with vanadium of an average valency state of +3.5 may be reactivated by heat treatment with oxygen-free butane.
Patent GB-989853-A (GB)
Title: Method of molding hollow plastic products
Inventor: MILLER JOHN HARDIN
IPC: B29C41/18
Filed: 1962-02-13
Abstract: 989,853. Moulding hollow articles. MOLD-ARAMA Inc. Feb. 13, 1962, No. 20906/64. Divided out of 989,852. Drawings to Specification. Heading B5A. In a method of forming hollow thermoplastic products in a mould cavity having an inlet and outlet, a stream of molten thermoplastic material is directed into the mould cavity, the internal surface of which is kept at a temperature lower than the melting temperature of the thermoplastic material, until a layer has congealed upon said internal surface. The method is performed by using the apparatus described in Specification 989,852.
Patent GB-1089104-A (GB)
Title: Electrically conductive thermoplastic comp ositions
IPC: C08K3/22
Filed: 1966-05-12
Abstract: Electrically conductive compositions comprise a mixture of a thermoplastic synthetic resin and 10 to 85% by volume of one or more electrically conductive oxides of a metal of Group VI of the Periodic Table or a mixed oxide thereof with an alkali or alkaline earth metal.  Specified resins are polyethylene, polystyrene, polymethyl methacrylate and polyvinyl chloride.  Specified oxides are molybdenum dioxide, Na2W4O12 and tungsten bronzes M2OnWO3WO2 where M is an alkali metal or alkaline earth metal equivalent and n is greater than 1. The compositions may also contain a salt which may be removed by dissolution or volatilization to leave a porous product, e.g. sodium or ammonium chloride.  The compositions may be moulded to form electrodes for fuel cells, when platinum black may be incorporated, or electroplated to form jewellery or articles for the electrical industry.  Examples describe compositions comprising (1) polyethylene, molybdenum dioxide and sodium chloride which is leached after moulding to form a fuel cell electrode; (2) polyvinyl chloride and Na2W4O12 which is moulded into electrodes for electrochemical reactions; (3) polyethylene and molybdenum dioxide which is moulded into grids for lead accumulator electrodes; and (4) polyethylene, molybdenum dioxide, platinum black and sodium chloride which is leached after moulding to form a fuel cell electrode.
Patent GB-704935-A (GB)
Title: Improvements in or relating to reciprocating engines pumps or compressors
Inventor: RICARDO HARRY RALPH
IPC: F02B75/26
Filed: 1951-08-08
Abstract: 704,935. Steam engines; distributing valves. RICARDO & CO., ENGINEERS (1927), Ltd. Aug. 22, 1952 [Aug. 8, 1951 ; Aug. 29, 1951], Nos. 21100/52 and 20341/51. Classes 122 (2) and 122 (3). [Also in Group XXVIII] In a reciprocating engine, pump or compressor having two or more parallel cylinders disposed around the axis of a main driving shaft H<SP>4</SP> and containing doubleacting piston G connected through piston rods G<SP>1</SP> with a non-rotatable wobble plate H<SP>1</SP>, each piston rod passes through a guide F which is of substantial length and makes such a close working fit with the rod that it maintains the piston substantially out of contact with its cylinder bore, and the connection beween each piston rod and the wobble plate comprises a cylindrical housing G<SP>2</SP>, rigid with the piston rod, enclosing a cylindrical rocking member G<SP>3</SP> mounted on a pin H projecting from the wobble plate. The engine comprises a pair of cylinder blocks A, A<SP>1</SP> each having a plurality of cylinders A<SP>2</SP> disposed around a rotary distributing valve K. The pistons G are connected in pairs by the piston rods G<SP>1</SP>. The wobble plate H<SP>1</SP> is journalled on bearings H<SP>2</SP> carried by a member H<SP>3</SP> on the driving shaft H<SP>4</SP>. One of the housings G<SP>4</SP> has end caps to prevent its member G<SP>3</SP> from sliding axially therein and so to prevent the wobble plate from rotating ; the other members G<SP>3</SP> are free to slide axially in their housings. In another embodiment all of the members G<SP>3</SP> are free to slide axially and rotation of the wobble plate is prevented by a pin projecting radially therefrom into a slider mounted in a longitudinal bore of the wobble plate housing B. Combined inlet and discharge ports J disposed at each of the cylinders cooperate with inlet ports K<SP>6</SP>, K<SP>7</SP> and discharge ports K<SP>4</SP>, K<SP>5</SP> in the rotary valve which in the case of a compressor is slidable axially under the action of the delivery pressure for varying the time of opening of the valve ports. Annular grooves are provided on the pistons and on the peripheries of the valves to form a seal. An annular chamber F<SP>6</SP> is provided in each of the guides F to which lubricant-laden air has access and from which lubricant can drain through passages F<SP>5</SP>. Balancing members N<SP>2</SP> counteract the effect of the wobble plate. Specifications 203,146, [Class 8 (1)], 704,902 and 704,903, [both in Group XXVIII], are referred to.