baber/WOPTO huggingface dataset:
Patent GB-718133-A (GB)
Title: Improvements in rock-drills having an engine assembled therewith
IPC: E21B1/34
Filed: 1952-02-22
Abstract: 718,133. Percussive drills. BERGMAN, G. A. Feb. 22, 1952, No. 4763/52. Class 124. An internal combustion engine driven percussive drill in which the return stroke of the striking piston is produced by a gas cushion has a non-return valve for the delivery of compressed gas to the gas cushion, and a power loaded valve, operating on the attainment of a predetermined pressure in the gas chamber, opens to allow the escape of gas from the gas cushion. As shown, a ball 17 in the exit of a passage 8 from the combustion chamber lifts to admit compressed gas into the gas cushion 7 below a striking piston 4 and is returned to its seating when the pressure due to the downward movement of piston 4 is greater than that in the combustion chamber. A second, spring loaded, ball 22, closing a passage 9 from the gas cushion and leading to an annular space 10 from which the gases escape through a hollow steel 16, opens on downward movement of the piston 4 and before the entrance 27 to the passage 9 is closed by the piston. The pressure required to lift the ball 22 may be adjusted by a screwed plug 25 on which one end of a spring 26 rests, Fig. 3. The ball 17 may be operated by an external source of compressed gas.
Patent GB-764668-A (GB)
Title: A new or improved illuminating tower or mast
IPC: E04H12/18
Filed: 1955-02-17
Abstract: 764,668. Telescopic posts. HAAR, A. Feb. 17, 1955 [Feb. 18, 1954], No. 4764/55. Class 20(1) A pneumatically operated telescopic illumination mast has, within it, a current supply cable 8, secured at its ends respectively to the base of the component carrying the light lowered. As  source 7 and to an upwardly tapering socket member 1 at the base of the mast, and surrounded by a coil spring sheath so that it coils automatically into the socket member when the mast is shown, a flange 2a , at the lower end of a tube 2 rests on member 1 and further tubes 3, 4, 5, 6 telescope into tube 2, tube 3 supporting, at its top, a light source 7. At the lower ends of tubes 3, 4, 5, 6 there are inwardly and outwardly extending flanges 3a, 4a, 5a, 6a. Springs 9, 10, 12, 14 and 11, 13, 15, 16 are supported respectively on the outer edges of flanges 3a, 4a, 5a, 6a and on the inner edges of flanges 4a, 5a, 6a and on flange 2a so that movement of the telescoping tubes, when approaching their extreme positions, is damped. Cable 8 is clamped at 8a to flange 3a of tube 3 and connected to air switch which is actuated by excess pressure after extension of the mast.
Patent GB-121682-A (GB)
Title: Improvements in or relating to Lawn Mowing Machines.
Inventor: STOCKDALE THOMAS HENRY
IPC: A01D34/62
Filed: 1918-03-19
Abstract: 121,682. Stockdale, T. H. March 19, 1918. Channels and reservoirs in lawn-mowers.-To lubricate the bearings of the rotary cutter of a lawn-mower, a lubricator G is applied to each upper adjusting screw D and supplies oil or grease through passages in the screw and the brass C. Oil boxes K, furnished with lids, are cast in the frame L above the bearings of the spindles H of the drum I and the front roller.
Patent GB-892967-A (GB)
Title: Improvements in or relating to rotary impeller pumps for liquids
Inventor: TURNER MICHAEL HARDY
IPC: F04D29/50
Filed: 1959-02-12
Abstract: 892,967. Centrifugal pumps. FISHER & LUDLOW Ltd. Feb. 10, 1960 [Feb. 12, 1959], No. 4876/59. Class 110 (1). A rotary impeller pump for liquids comprises two rotary impeller elements, an outlet port housing associated with each impeller element, and a common inlet port housing, the inlet port housing having a separate inlet port associated with each impeller element. An inlet port housing 10 comprising two separate opposed inlet pipes 11, 12 is disposed between two impeller outlet housings 25, 26 on each of which is formed a tangential outlet pipe 27, 28, respectively. The inlet and outlet port housings are bolted together by bolts 31 passing through lugs 29 on the impeller outlet port housings 25, 26, and peripheral protuberances 30 on the inlet port housing 10 such that the inlet and the outlet housings can be assembled in a plurality of different relative positions, a seal 32 being fitted between each outlet housing and each side of the inlet port housing. The inlet port housing has an integral sleeve 17 containing a bearing 18 for a shaft 19 carrying the impellers 20, 21. The shaft 19 is coaxial with the impeller inlet chamber portions 13, 14 and is supported at either end by bearings 34. Each impeller comprises a thin disc 22 and radial blades 23. The pump may be used to pump two liquids at the same time or alternatively the inlet to one impeller can be connected to the outlet from the other so that the pump impellers are arranged in series with the resulting increase in the final delivery pressure.
Patent GB-881849-A (GB)
Title: Improvements in or relating to the purification of ferrous alloys
IPC: C21D3/02
Filed: 1959-02-12
Abstract: Ferrous alloys in the solid state, particularly in the form of sheet, strip, or plate, have their C, N2, O2, S or P contents reduced, and surface scale converted to a less detrimental form, by treating them within the range 700-1300 DEG C. with an alkaline earth metal in a fluid inert to the alloy.  The fluid may be inert gas, or may be molten calcium chloride or other inorganic salts, the molten bath being capable of dissolving not less than 0,1% by weight of the alkaline earth metal.  The alkaline earth metal may be present in the elemental state, or as not less than 20% by weight of an alloy with aluminium, or as any suitable alloy, and may, depending on the treatment temperature, be in the form of elemental vapour, elemental liquid, liquid alloy, powdered solid alloy, solution of alloy in molten inorganic salt, or elemental solution in such a bath.  Where a molten salt bath is used, the alkaline earth metal may be conveniently made available by having one of its halides as a constituent of the bath, to which an alkali metal is added.  When a solid alloy is used as the refining agent the powder may be mixed with an alkaline earth metal oxide to reduce sintering.  Finally divided TiO2 may be added to a solid or liquid refining agent to eliminate liberation of acetylene on subsequent washing of the treated material, and also aids the attainment of very low carbon contents.  The treatment may conveniently be carried out by interleaving the turns of coils of strip, or the individual sheets or plates of a stack, with the refining agent, followed by heating to the desired temperature.  If no calcium chloride or other flux is present, the scale is converted to a very adherent form which does not lift during subsequent cold-rolling, although it is readily removable by an acid pickle.  Use of a flux renders the scale less adherent.  Use of the process for treatment of silicon steel and austenitic steel is referred to, also for surface decarburisation of stainless steel to eliminate weld-decay, and treatment of carbon steel prior to enamelling.
Patent GB-141851-A (GB)
Title: Improvements in and relating to grinding machines
IPC: B24B27/00
Filed: 1919-02-27
Abstract: 141,851. Norman, C. E. van. Feb. 27, 1919. Disk apparatus.-Relates to a grinding- machine adapted particularly for internal and face grinding, and comprises a machine in which a rotary grinding-tool and a rotary work-head are mounted on separate slides on the same framework which provides a direct support for each of the slides, and in which quick-acting means are provided, operating independently of the feeding-mechanism, to move the work-support to a horizontally offset position in relation to the grinding - tool to allow of inspection &c. of the work. On a base A is mounted a longitudinally reciprocable slide 12 carrying a transversely movable carriage 14 in which is mounted a rotating grinding-tool 16, the carriage being adapted to be fed transversely by ratchet mechanism, and the slide to be reciprocated by mechanism operated from a pulley 26; the slide 12 may be moved rapidly to retract the grinding-tool from the work by means of a nandle 17. The work 25 is carried by a rotary chuck 24' mounted in a head 3 carried by a plate 2 and adjustable angularly thereon by means of bolts 28 and a circular T-slot in the plate, and the plate is mounted on a carriage 1 and is adjustable transversely thereof by means of bolts 27 and slots 30 in the carriage. The carriage is slidable transversely of the work and tool axes on ways 31. 32 formed on a bracket 6 carried by the base and having therein, and near one end thereof, an opening 33, Fig. 8. Mounted in the opening and secured to the bracket is a rack 5, in gear with which is a pinion 4 fixed to a vertical spindle 7 rotatably carried by the carriage 1 and having secured at its upper end a handle 8. Movement of this handle from the position shown in Fig- 3 to that shown in Fig. 4 moves the carriage and the work-head to bring the work, for the purpose of inspection &c., into offset relation with respect to the grinding-tool; to ensure the return of the work to the correct position on return of the handle 8, this is provided with a lever 9 having a latch thereon, adapted to engage an adjustable stop 10, and adjustable stops 11 are also provided to limit the movement of the carriage. By disengagement of the automatic feeding-mechanism, the face of the work may be ground by hand operation of the carriage 1 without disturbing the setting of the automatic feed.
Patent GB-546199-A (GB)
Title: Improvements in or relating to joints in hose for the passage of water or other liquid
IPC: F16L37/02
Filed: 1941-04-16
Abstract: 546,199. Couplings for hose pipes. SMITH, F. E. April' 16, 1941, Nos. 4971 and 14905. [Class 99 (i)] Hose pipes are secured together by a spigot- and-socket joint in which rubber or other yielding rib-like projections on the spigot engage corresponding recesses in the socket. The socket may be composed of rubber and the joint is made by springing the parts into position. Parallel V-shaped ribs and recesses are shown in Figs. 1 and 2 at D, F respectively. The ribs &c. may, however, have other shapes and they may be inclined. To facilitate the entry of the spigot into the socket each rib may be slotted in a direction parallel to the pipe.
Patent GB-1494063-A (GB)
Title: Latex coagulant for emulsion polymers
IPC: C08L23/00
Filed: 1976-02-09
Abstract: 1494063 Coagulating synthetic rubber latexes NALCO CHEMICAL CORP 9 Feb 1976 [11 June 1975] 04974/76 Heading C3P Synthetic rubber latexes are coagulated by adjusting the pH to 1À5-7À0 then adding as coagulant a copolymer of epichlorohydrin and dimethylamine having a mole ratio of the former to the latter of 0À75 to 0À98 and preferably a molecular weight of 200-50,000.
Patent GB-139196-A (GB)
Title: Process and apparatus for carbonising coal
IPC: C10B1/04
Filed: 1920-02-18
Abstract: 139,196. Bull, H. J. Feb. 19, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Producers; coking processes.-In a producer adapted also for the production of coal-gas and coke, the shaft 1 is formed with a series of inlet ports 4, the air supply to which is controlled by a handwheel 6. Steam or water may be injected at ports 11, and producer gas and water gas are withdrawn through outlets 7. Coalgas is formed in the upper part of the shaft, which connects with an hydraulic main, and coke is discharged by a toothed wheel 9 into a hopper 10. The shaft may be heated externally, and the coke fuel near the steam inlets may be heated directly by electrical means or by injecting gas heated electrically.
Patent GB-1213183-A (GB)
Title: Medical apparatus provided with cryogenic implement for therapeutic or surgical use
Inventor: RIGGI GIOVANNI
IPC: A61B18/02
Filed: 1968-01-31
Abstract: 1,213,183. Cryogenic prokes. G. RIGGI. 31 Jan., 1968 [4 Feb., 1967; 6 June, 1967], No. 4985/68. Heading A5R. A cryogenic surgical implement comprises a cylinder 1 containing fluid under pressure, a probe 9 including a capillary tube 2 connected to the cylinder 1 through a pipe 3 which is flexible over a part of its length, a thermal condenser 5, 6, 7 for liquefying fluid flowing from the cylinder into the pipe and maintaining it at a temperature below the evaporating temperature of the fluid at the pressure prevailing in the pipe and a manually operable valve 13 for selectively connecting the capillary tube 2 with atmosphere through a vacuum pump 17 for evaporation of the fluid in the probe. The escaping vapour passes through a sleeve 15 surrounding a part of the pipe 3 to the vacuum pump 17. The degree of vacuum produced by the pump is adjustable by a screw 21 controlling the opening pressure of a valve 19. The greater the vacuum produced the greater the cooling effect of fluid evaporating within the probe. The proke 9 comprises a tube with an operative end which is formed as a bulging cap 10, a hollow cylinder (22), Figure 2 not shown, or a hollow annulus (23) Figure 4 not shown.
Patent GB-969160-A (GB)
Title: Improvements in or relating to electro-acoustic transducers
IPC: H04R17/00
Filed: 1963-02-07
Abstract: 969,160. Loud-speakers and microphones. S. G. BROWN Ltd., and T. D. IBBOTSON. May 10, 1963 [Feb. 7, 1963], No. 5046/63. Heading H4J. An electro-acoustic transducer comprises a diaphragm 1 attached to a piezo-electric transducing bender element 3 which is attached only to the movable part of the diaphragm so that if the element oscillates, due to the application of an electric signal, the inertia of the element causes oscillation of the diaphragm, or alternatively oscillation of the diaphragm causes bending of the element due to its inertia to produce an electrical signal. The element is preferably a lead zirconate, lead titanate piezoelectric material in the form of a bar, the ends of which may be loaded, as at 5, with weights made e.g. of silicone rubber.
Patent GB-680570-A (GB)
Title: Improvements in or relating to a web coating machine
Filed: 1950-02-28
Abstract: 680,570. Coating paper webs. PAPER PATENTS CO. Feb. 28. 1950. [March 12,1949] No. 5064/50. Classes 96 and 140. A coating is applied to a web of paper 10 by a roll 12 as the web passes between rolls 12 and 11, roll 12 being supplied with the coating liquid from distributer rolls comprising an outer roll 14 and an intermediate roll 13 which are provided with means for forcing the outer roll 14 toward the applicator roll 12 in such a manner that all of the force applied to the outer roll is transmitted to the inner roll, the diameters of the rolls and the hardness of the materials of which they are constructed being such that the maximum pressure in the nip between rolls 13 and 14 is at least as great as the maximum pressure in the nip between rolls 12 and 13. Rolls 12, 13 and 14 are carried on a pivoted frame 16 provided with a hydraulic device 19 for applying pressure between rolls 12 and 11, the latter being mounted on bearings in the frame 15. Rolls 13 and 14 are mounted on pairs of pivoted arms 21 and 25 respectively. A hydraulic device 22 is provided for forcing roll 14 toward roll 12. A weak spring 26 is provided between the arms 21 and 25 to withdraw roll 13 out of contact with roll 12 when roll 14 is moved away from roll 12 for cleaning purposes. A stop 28 is provided limiting the movement in this direction of roll 13. All of rolls 11, 12, 13 and 14 may be driven. Roll 11 has a brass surface and rolls 12 and 14 are rubber covered. Roll 13 may be of metal. The machine may be incorporated in a paper making machine.
Patent GB-724804-A (GB)
Title: Improvements in doctors for paper-making and like machines
IPC: D21G3/00
Filed: 1953-02-24
Abstract: 724,804. Doctors of paper-making machines &c. LEISTIKOW, F. W. R. (Smith, R. W.). Feb. 24, 1953, No. 5143/53. Class 96. The back edge of a doctor blade 10 for a roll 8 of a paper pulp- or board-making machine, or a crÛping machine &c. is received in a slot 21 in a rod-like holder 20 keyed at 36 in a groove 35 of a carrier 30 on a support 40. Removal of the key or pin 36 allows the holder 20 to be turned so that the blade slopes downwardly, and may be removed forwardly with the holder 20. In modifications, the blade is secured in the slot 21 by pins which may be tapered and (a) the holder 20 is of elongated cross-section and spring held in the groove 35; and (b) the holder 20 is hollow and approximately of G-section, or of approximately of E-section. The blade 10 may be continuous, or of abutting longitudinal sections 5 inches or more long, and may be of metal, fibre or plastic.
Patent GB-1197273-A (GB)
Title: Exhaust Valves for Internal Combustion Engines
IPC: C23C4/08
Filed: 1969-01-30
Abstract: 1,197,273. Coating with Al. ADAM OPEL A.G. Jan.30, 1969 [Feb.15, 1968], No. 5185/69. Heading C7F. [Also in Division F1] A ferrous metal internal combustion engine poppet valve has its front face coated with a layer of Al or Al alloy by means of an electric-arc metal spraying process. The valve may be made of Fe- Cr alloy, and the use of an electric-arc causes the Al coating 13 to contain barrier-like films of oxide 14 which restrict diffusion of the base metal 10 of the valve into the Al layer.
Patent GB-874874-A (GB)
Title: New or improved wiping device for a measuring tape
IPC: G01F23/04
Filed: 1960-02-15
Abstract: 874,874. Wiper for tape for measuring contents of a tank. WHESSOE Ltd. Feb. 15, 1960 [March 6, 1959], No. 5298/60. Class 19. Wiper unit for a tape used to measure the level of liquid in a tank consists of a plug that can be secured in to seal off an opening in the top of the tank. Through the plug extends a slot through which the tape can pass into the tank. Secured to the bottom of the plug is a pair of resilient arms 7 which are provided at the lower ends with wiper blades 9 between which the tape can pass. The blades 9 are pressed against the tape when required by rollers 6 that engage the springs 7 on vertical movement of roller-supporting rods 4 extending up through aligned holes in the top and bottom of the plug. A hand grip 3 is secured to the rods in the central, hollow, apertured portion 2 of the plug.
Patent GB-850842-A (GB)
Title: Improvements in and relating to electrical plug connector-cable assemblies
IPC: H01R13/26
Filed: 1958-01-30
Abstract: 850,842. Two-part couplings. KAMM, L. J. Jan. 30, 1958 [Feb. 12, 1957], No. 5364/60. Divided out of 850,841. Class 38(1) Individual cables A, B, comprising strips 2 of flexible insulating material carrying flexible conductors 3 are secured to opposite faces of a support 1 of rigid or resilient material to form a plug, insulating layers 5 covering the conductors 3 terminating short of the ends of the cables and leaving portions of the conductors bare to form contacts 4. The plug may be used with a socket D as described in Specifications 782,347 and 782,348 or with any of the other sockets described in these Specifications and Specification 782,349.
Patent GB-1491876-A (GB)
Title: Manufacture of cigarettes
IPC: A24C5/34
Filed: 1974-02-05
Abstract: 1491876 Testing cigarette wrappers MOLINS Ltd 4 Feb 1975 [5 Feb 1974] 05367/74 Heading A2C A method of making cigarettes comprises the steps of forming a filler enclosing the filler in a wrapper to form a continuous rod, severing the rod to form cigarette portions, and feeding the cigarettes to a testing device to detect leaks in the wrappers of the cigaretes, and in which some of the cigarettes are deliberately made with leaks in their wrappers of predetermined size and the operation of the testing device is monitored by determining whether the cigarettes containing the deliberate leaks are detected by the testing device. A mechanism for pricking cigarette paper is shown in Fig. 1 and comprises a spiked plate 30 which is movable towards cigarette paper 2' unwound from bobbin 20A. Cigarettes 18 pass through testing device 19 and a second ejection station 36, which latter ejects automatically any cigarettes containing the deliberately formed holes which have not been removed by testing device 19. In an alternative system a printer 4 may be used to form holes in cigarette paper 2.
Patent GB-1025551-A (GB)
Title: Heat transfer system for a nuclear reactor
IPC: G21D5/08
Filed: 1963-02-11
Abstract: 1,025,551. Nuclear power plant. J. E. LINDBERG. Feb. 11, 1963, No. 5498/63. Addition to 962,498. Heading G6C. In a nuclear power plant, heat transfer from the core is effected by a liquid or powdered metal hydride which is dissociated at the reactor and which recombines exothermically at a heat exchanger. Reactivity in the core is controlled by adjusting the hydrogen concentration and hence the moderation. The hydrid also acts as a radiation shield round the core. The hydrogen and metal produced in the core are separately stored prior to entry to the heat exchanger and the heat produced at the exchanger may be controlled both by reactor adjustment and by the release of the stored hydrogen and metal to the exchanger. As applied to an aircraft, the reactor is mounted in the tail and the hydrogen and metal are transferred to turbo jet engines in the wings where air is heated by the exothermic combination and ejected rearwardly.
Patent GB-1179671-A (GB)
Title: Improvements in and relating to Cartons
IPC: B65D83/08
Filed: 1968-02-02
Abstract: 1,179,671. Cartons. AKERLUND & RAUSING A.B. 2 Feb., 1968 [10 Feb., 1967], No. 5510/68. Heading A4G. [Also in Division B8] A carton for a roll of web material comprises four side walls 1-4 and a flap 5 which has a toothed edge and is attached to portion 8 of the side wall 1, the latter wall having a tear strip 7 defined by scored lines 10-13. The flap 5 is reinforced on its inner surface by a plastics strip 33, and is attached to a central portion of the side wall 4 defined by scored lines 26-29. In use the tear strip is removed and the central portion of the side wall 4 is detached from its end portions 30, 31, and the toothed edge is used for cutting portions of the web from the roll.
Patent GB-936652-A (GB)
Title: Improvements in or relating to coin freed vending machines
Inventor: DEAN HARRY
IPC: G07F11/24
Filed: 1959-02-18
Abstract: 936,652. Coin-freed vending apparatus. DEAN BROS. (ENGINEERS) Ltd. Feb. 16, 1960 [Feb. 18, 1959], No.5539/59. Class 27. A commodity container 6 in a coin-freed vending machine is provided at its lower end with a rotary delivery disc 19 having a recess 22 from which the article projects laterally of the disc and a hinged flap 16 which is downwardly biased by a spring 18 and has a portion bearing on the laterally projecting part of the article to ensure satisfactory delivery of the latter. As shown, two delivery discs 19, 20 are provided with peripheral recesses 22 for the reception of the articles, and the flap 16 is formed with cut-outs 16a, 16b through which the marginal edges of the discs project. As an article is delivered, it is temporarily engaged by the flap until it reaches a position below the latter. The apparatus may embody more than one container 6 each with its own hinged flap and the delivery disc or discs associated with one container may have its delivery recesses peripherally offset from those of another container for delivery from the containers in turn. The container 6 is mounted in the casing on two U-brackets 3 engaged by stepped brackets 5 on the container and secured in position by a catch lever 11 biased by a spring 12 to lock against an abutment 7 on the casing.
Patent GB-598696-A (GB)
Title: Improvements in expansion jointing compositions
IPC: E01C11/10
Filed: 1946-02-22
Abstract: An expansion jointing composition comprises bitumen, a mineral filler which may be titanium dioxide and/or carbonate of lime and/or finely divided sand, and up to 5 per cent. by weight of asbestos which may be powdered or fibrous or a mixture of the two types.  The bitumen may be the residue obtained on distillation of petroleum or may be albino bitumen, and may be first emulsified in water and the filler and asbestos then added.