baber/WOPTO huggingface dataset:
Patent GB-465520-A (GB)
Title: Manufacture of polymerisation products
IPC: C08F14/18
Filed: 1935-10-03
Abstract: Substituted vinyl compounds containing fluorine and at least one other halogen atom in substitution for hydrogen in the vinyl radical are polymerized by heat and pressure, if necessary in the presence of a polymerization catalyst, e.g. benzoyl or other peroxide.  There may also be present regulators such as aldehydes, and the polymerization may take place in solution, e.g. in alcohol, benzene, or petroleum ether, or in aqueous emulsion, preferably with an emulsifying agent. In examples: (1) trifluorochlorethylene, (2) 1 : 1-difluoro-2-chlorethylene is polymerized by heat and pressure. Trifluorochlorethylene is obtained from trifluorotrichlorethane (prepared by heating hexachlorethane with antimony tri- or pentachloride and causing hydrogen fluoride to act on the mixture) by eliminating two chlorine atoms by means of zinc.  The Specification as open to inspection under Sect. 91 is not limited in respect of methods of polymerization, and contains as further examples: (3) trifluorobromethylene, (4) trifluorochlorethylene and vinyl chloride, are polymerized by head and pressure.  The product of example (4) is stated to be soluble in organic solvents, e.g. chlorinated hydrocarbons, esters and ketones.  U.S.A. Specification 1,970,562 is referred to.  This subject-matter does not appear in the Specification as accepted.
Patent GB-603316-A (GB)
Title: Improvements in or relating to cleaning filters
IPC: B01D35/18
Filed: 1945-10-18
Abstract: 603,316. Cleaning filters. KING, E. COURTNEY-. Oct. 18, 1945, No. 27348. [Class 46] A process for cleaning filter elements used in dry-cleaning systems comprises subjecting the elements to the action of boiling liquid solvent while they are immersed therein. As shown, the filter chamber f contains grids g surrounded by filter bags, the grids being spigoted on a header h which is connected through a valve 1 and pipe d to the dry cleaner. The return pipe e from the cleaner leads through a valve 8 to a pump p which returns the cleaning liquid through pipe q to the chamber f. The base of the filter has a removable door s provided with pipes k leading to a steam coil heater. The top of the chamber f is connected to a condenser u which discharges to a water separator m and a storage tank n. In the filter-cleaning operation, the valves are suitably set, the chamber f is filled with liquid up to a level determined by an outflow pipe r and steam is supplied to the coil k. As the solvent boils the dirt collects in the bottom of the chamber f. Preferably substantially the whole of the liquid is boiled off. Vapours are then drawn off by a fan x and the sludge door s is removed together with the steam coil. The residual dirty liquid and dirt are then withdrawn.
Patent GB-339931-A (GB)
Title: Improvements in or relating to projectiles
IPC: F42B10/06
Filed: 1930-09-12
Abstract: 339,931. Brandt, E. W. Nov. 9, 1929, [Convention date]. Projectiles.-Relates to projectiles provided with a perforated tail tube 5 containing a propellent cartridge and fitted externally with guiding vanes 1. According to the invention, these vanes are perforated at 7 to equalize the propellent gas pressure on both sides of each vane. The edge of each vane may have lugs 9, 10 bent in opposite directions, and serving to secure auxiliary propellent charges 13 between the vanes. Alternatively, the auxiliary charges are arranged with their corners in the holes of the vanes, or the charges are inserted in the holes one in each. The rear ends 20 of the vanes are rounded.
Patent GB-687059-A (GB)
Title: Improvements in rims for the wheels of cycles, motor-cycles and like vehicles
IPC: B60B21/06
Filed: 1951-11-22
Abstract: 687,059. Vehicle wheels. JOURLAIT, L. Nov. 22, 1951, No. 27428/51. Class 144 (ii). A rim for cycle &c. wheels, made from light alloy by drawing, is formed with a thickened portion b, Fig. 1, g, Fig. 6, in the region of the spoke - nipple attachments. The finished rim-profile shown in Fig. 6 may be pressed &c. from a drawn blank of the cross-section shown in Fig. 5.
Patent GB-239079-A (GB)
Title: Improvement in nut threading machines
IPC: B23G1/18
Filed: 1924-11-17
Abstract: 239,079. Spies, P. H. F., and Rouse, W. C. Nov. 17, 1924. Tapping.-A nut tapping-machine has a curvedshank tap 40 surrounded by a rotating sleeve 15 which receives nuts transferred by an arm 20 from a forming and cutting-off machine. The arm 20 carries a spring-pressed plunger 36, Fig. 5, which projects partly into the untapped nut and a spring-pressed feeding sleeve 28 which forces the nut on the tap. The arm is attached to a shaft 21, reciprocated axially by a cam 25 and a spring 26 and oscillated to move the arm from the cutting-off to the tapping-machine by a cam and spring-actuated lever 30. The cam 25 is rotated at double the speed of the. oscillating cam, and both cams are designed to give a dwell at each machine. An adjustable collar 60 limits reciprocating movement in one direction. The sleeve 15, which is hexagonal internally, is rotated by a pulley 18 and the nuts pass over the curved shank 41 into jaws 44 which hold the shank during cutting, but are released to allow a nut to drop by means of pivoted links 48 actuated by an elliptical groove in a cam 52 oscillated by gearing 57 slidably keyed to the shaft 21. Oil is supplied to the tap at 58 and holes 19 in the sleeve 15 allow cuttings to escape.
Patent GB-228270-A (GB)
Title: Improvements in or relating to automatic switches as used in telephone systems
IPC: H01H63/06
Filed: 1923-11-01
Abstract: 228,270. Automatic Telephone Manufacturing Co., Ltd., and Nixon, J. Nov. 1, 1923. Selectors.-Eleventh or auxiliary terminals, to which a statistical meter may be wired, are added to each level of a standard test-terminal bank by means of specially-shaped metallic members each provided with a projecting portion which is bent so as to lie in the path of the test wiper. In the construction shown, the speciallyshaped members consist of arcuate strips 15 inserted centrally in the insulation between the test terminals 10 of two adjacent levels, the projecting end portions 17 being suitably bent so as to lie in the same planes as the terminals 10. Specification 24343/14 is referred to. The Provisional Specification also refers to a modification in which the strips carrying the auxiliary terminals may be mounted on a supporting post.
Patent GB-670219-A (GB)
Title: Improvements in and relating to vacuum cleaners
IPC: A47L9/14
Filed: 1949-10-27
Abstract: 670,219. Suction deanen. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 27, 1949 [Oct. 30, 1948], No. 27574/49. Class 8 (ii) A vacuum cleaner filter bag 20, Fig. 1, of the disposable type has its open end portion 25 flared, and is supported outside the cleaner air passage 7 by a bell 22 and a resilient gasket 26 in contact with the bag end 25 and forming a seal between it and the passage 7. Further support for the bag 20 which is of paper comprises rods 11, a re-entrant wire frame 18, and a cloth bag 13. In a modification the cloth bag is dispensed with and the bag 20, Fig. 3, is supported by a perforated metal or wire screen 28, a frame 29, and a conical screen 36.
Patent GB-373038-A (GB)
Title: Improvements in metal working presses
IPC: B21D24/02
Filed: 1931-10-05
Abstract: 373,038. Cupping. RODE, F. J., 6500, West 65th Street, Chicago, U.S.A. Oct. 5, 1931, No. 27580. [Class 83 (iv).] In a cupping press in which the work is ejected by a constant fluid (air) pressure on the liquid 30 which raises the piston 28 and so raises the ejector die 24, the ejecting action is delayed by a trip finger 61 moving down with the ram 12 which sets valve 54 so that air pressure passes through pipe 53 to raise the piston 47, which closes the piston valve 43, so that the piston 42 presses on trapped liquid 35 to depress the piston 36 coupled to the ejector die 24. When the ram rises the finger 61 coupled thereto resets the valve 54 so that air pressure on the bottom of piston 47 descends and exhausts through pipe 52, thus opening the piston valve 43 and allowing the ejector die to be pushed up.
Patent GB-669957-A (GB)
Title: Improvements in or relating to trimming machines
IPC: A43D23/06
Filed: 1949-10-28
Abstract: 669,957. Shoe-upper trimming machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Oct. 27, 1950 [Oct. 28, 1949], No. 27632/49. Class 17 (i). A trimming machine, for example for trimming surplus material from shoe uppers, has a pair of rotary cutters 16, 18, mounted on vertical and horizontal axes respectively, past which the work, e.g. a lasted upper of a welt shoe, is guided by a machine operator, and is suited for operating on both soft and tough materials. The cutter 16 is of concave form with a cylindrical outer surface 92 intersecting the interior face to form a cutting edge 94 lying tangential or approximately so to the face 92. It is mounted on a shaft 42 driven from a motor 10 through gears 50, 52, 56. The rotary disc cutter 18 is mounted on a shaft 22 driven from motor 10 and shaft 20 and the shafts 42, 22 are offset so that the cutting edges of the cutters form an acute shearing angle with one another. The cutter 18 has a flat surface adjacent the cutter 16 ending in a cutting edge lying more or less tangential to the face 92. Teeth or ribs 90, 94, or the cutters uniformly inclined in the direction of work feed co-operate in feeding the work into which they bite just below the shearing line of the cutters. A wiper 60 of substantially L-shape acts in advance of the cutters to position the margin of the work piece to be trimmed laterally of line of work feed relatively to the cutters. Alternatively, a pair of spindles may be used for this purpose. A depth gauge or shoe bottom rest 86 is adjustably secured to a cutter guard frame 32.to underly the cutter 18 and the insole is held against this rest by the operator in feeding the work past the cutters. A deflector 88 on the frame 32 guides severed material from the cutters. These latter may be sharpened without removal by holding a grinding stone by hand against them while rotating.
Patent GB-888754-A (GB)
Title: Improvements relating to thermal responsive glow discharge electric switches
Inventor: DUGMORE TERENCE
IPC: H01H61/017
Filed: 1959-08-13
Abstract: 888,754. Thermal switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 27, 1960 [Aug. 13, 1959], No. 27718/59. Class 38(5). In a glow-discharge switch the gap setting between the electrodes is adjusted during the sealing operation and subsequent adjustment is unnecessary. A fixed electrode 3, supported by a lead-in conductor 5, is circular and surrounds a U- or V-shaped bi-metal electrode 2 suspended at its apex from a lead-in conductor 4. The electrodes and conductors are enclosed in a glass envelope 1 which is first exhausted through a glass tube 7 and then filled with an inert gas, prior to forming a pinch 6 in the envelope and so sealing it. The heat of the operations causes the limbs of the bi-metal element to expand and contact the ring-shaped electrode so ensuring centring of the electrodes and the correct gap-setting. The lead-in conductors are bent at 14 into a groove 16.
Patent GB-692507-A (GB)
Title: Piston cups and method of making the same
IPC: F16J15/32
Filed: 1950-11-14
Abstract: 692,507. Piston packing. GARLOCK PACKING CO. Nov. 14, 1950 [Dec. 10, 1949], No. 27812/50. Class 122(i) A piston cup comprises a rigid mounting cup 11 having an approximately cylindrical peripheral flange 13, a flexible sealing sleeve 12 of cylindrical form mounted with one end portion thereof in the cup 11, the sleeve 12 comprising several circumferentially extending layers of fabric with the threads of the fabric on the bias at all circumferential points around the sleeve, and means, e.g. a filter piece 14, within the cup 11 for restraining the inner end of the sleeve 12 against radially inward deformation. The Specification describes the method of making a long cylindrical blank from which the sleeves 12 are parted.
Patent GB-1221699-A (GB)
Title: Light guide photometer
Inventor: MARCHAL MAURICE
IPC: G02B6/04
Filed: 1968-06-12
Abstract: 1,221,699. Light guides. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. June 12, 1968 [June 15, 1967], No.27914/68. Heading G2J. A photometer for measuring electromagnetic or corpuscular radiation comprises a prism 2 transparent to radiation and visible rays, having an inlet face 5, outlet face 6 and reflecting face 7, a fluorescent screen 1 adjacent the inlet face and a photo-cell 3 for receiving light from the outlet face. The prism 2 has two parallel optically polished sides 81 and faces 9, 9<SP>1</SP> which are ground and blackened to limit the angle of incidence of light on the outlet face; the reflecting face 7 may be metallized to improve its reflecting properties. A fluorescent E-screen 1 is placed in the radiation field in front of the inlet 5 and the prism 2 guides the light to the photoelectric cell 3. In an alternative embodiment Fig.7, to increase the amount of light, two screens 16, 16<SP>1</SP> are placed in a slit of a prism 14 with two reflecting faces 15, 15<SP>1</SP>, or there may be used a sheet of transparent plastics material (19) Fig.9 (not shown) supporting a fluorescent powder (20). The photometer is surrounded by hood of opaque paper and further placed inside a casing (10) Fig.4 (not shown) of blackened brass. The photometer may be used in medical radiology or atomic energy processes and in cases where a radiation transducer is necessary to record fluctuations in the radiation beam. Several of the prisms may be placed head to tail beside a large blood vessel or the heart or any organ to analyse certain dynamic effects.
Patent GB-735991-A (GB)
Title: Improvements relating to flexible actuating elements
IPC: F16C1/10
Filed: 1953-10-12
Abstract: 735,991. Releasable fastenings. HANNEY, P. J. Jan. 11, 1954 [Oct. 12, 1953], No. 27980/53. Class 44. Control means for a flexible actuating element 1 comprising a plurality of spaced beads 2 e.g. for controlling a blind for adjusting air flow through an engine radiator, comprises a guide tube 15 through which the flexible element is adapted to pass and which is provided with a cut-out 16, a detent 27 adapted to engage between adjacent beads at the cut-out to obstruct passage of the beads through the tube, the detent when a pull is given in one direction to the flexible element allowing the beads successively to 'pass the detent and thus permitting movement of the flexible element in such direction but preventing movement of the flexible element in the other direction, means for moving the detent to and holding it in a position permitting the beads to move past the detent in either direction and thus allowing the flexible element to move in either direction and resilient means 23 resisting movement of the detent to said position. The beads 2 are joined by short rods 3 extending into holes in the beads and secured therein by heads on their ends. The guide tube 15 is carried by a casing 13 and the detent is part of a detent member 20 mounted by an aperture on a rod 22 and also apertured to fit over the tube 15 which guides its movement. The resilient means 23 is a spring surrounding the rod 22 to hold the detent member against a wall of the casing in which position the detent blocks the passage of the beads against movement to the left in Fig. 1. When the element 1 is pulled to the right the detent member is moved against the spring by the beads on its left until it reaches an upright position when the bead can pass the detent, the passage of the bead being facilitated by a bevelled surface on the detent. The detent can also be moved to the upright position by pulling a knob 24 on the rod 22 which causes a shoulder 26 to move the detent member. In a modification the detent member is not fitted over the guide tube 15 but is guided by a separate rod and has a transversely extending detent.
Patent GB-878873-A (GB)
Title: Improvements in safety razors
IPC: B26B21/18
Filed: 1957-09-05
Abstract: 878,873. Razors. WILKINSON SWORD Ltd., and RANDOLPH, H. B. Sept. 5, 1958 [Sept. 5, 1957], No. 28020/57. Class 30. A safety razor comprises a seating 12 for a blade 11 and a guard piece 13 having a guard edge 13a adjacent the, or each, cutting edge 11a, relative transverse movement between the seating and the guard varying the distance between the cutting edge and the adjacent guard edge to adjust the closeness of the shave. In a razor of the of the one-piece type having pivoted covers 10 clamping the blade against the seating and openable for replacement of the blade by longitudinal displacement of a screwed stem 14, a knob 16 is provided which has an eccentric elliptical aperture 16a through which the stem 14 passes. Rotation of the knob bends the stem 14 about its lower end to move locating tongue 15, seat 12, covers 10 and blade 11 transversely to decrease the distance between the blade and guard edges at one side and increase this distance at the other side. In a modification separate guard pieces are joined by a linkage for movement towards and away from each other, the blade-seat remaining stationery, so that the distance between the guard and blade edges is adjustable and the same at both sides.
Patent GB-268846-A (GB)
Title: Improvements in or relating to the injection of liquid fuel in internal combustion engines
IPC: F02M21/00
Filed: 1925-11-09
Abstract: 268,846. Braren, L. K. Nov. 9, 1925. Regulating delivery; single - acting bucket pumps.-Fuel passes through a pipe 5 and conduit 35, Fig. 3, to the cylinder 36, the piston 27 of which is turned down at 37 to act in conjunction with an adjustable recessed bush 39 to vary the amount of fuel delivered per stroke. The fuel is discharged through an axial bore 43 in the piston, provided with a spring-loaded valve 44.
Patent GB-740593-A (GB)
Title: Improvements in or relating to resinous thermoset compositions and articles produced therefrom
IPC: C08G77/08
Filed: 1953-10-13
Abstract: Fluid polymers containing the group <FORM:0740593/IV(a)/1> are prepared by controlled hydrolysis and condensation of 1-diethoxy-methylsilyl-4-ethoxydimethylsilylbenzene and may be thermoset by heating and/or by the addition of an alkaline catalyst. The controlled condensation is effected by diluting the ethoxy monomer with a solvent, e.g. benzene, or with other silicon compounds which will produce groups of the formula <FORM:0740593/IV(a)/2> , where R is a monovalent hydrocarbon radical and x has an average value of 1.2 to 2.2, and/or groups of the formula <FORM:0740593/IV(a)/3> and by using a small amount of weak, aqueous sulphuric acid as catalyst.  Examples of copolymerizable silicon compounds producing these groups are dimethyl- and diphenyldiethoxysilanes, methylphenyldimethoxy- and diethoxy silanes, and 1,4-bis-(ethoxydimethylsilyl) benzene.  Suitable alkaline catalysts for thermosetting the flluid polymers are the alkali metal hydroxides, carbonates and alkoxides, and amines, e.g. ethyl and diethyl amine.  Curing may be effected at room temperature or up to 100-150 DEG C.  The polymers may be used for dipping, impregnating, potting and encapsulating electrical equipment and as curing agents for siloxane elastomers.  The compositions may include fillers such as glass fibres, asbestos, mica, silica flour, graphite and metal powders.ALSO:1-diethoxy methyl silyl-4-ethoxy dimethyl silyl benzene <FORM:0740593/IV(a)/1> may be prepared by either of the following methods: (1) heating a mixture of p-bromophenyl dimethyl ethoxy silane, methyl triethoxysilane and magnesium; (2) reacting p-dibromobenzene, magnesium and methyl silicon triethoxide to produce a mixture of (a) p-bromophenyl methyl diethoxy silane; and (b) 1,4-bis (methyl diethoxy silyl) benzene, separating (a) and (b) and reacting (b) with methyl magnesium halide to give the desired compound. Reacting compound (a) with methyl magnesium halide yields p-bromophenyl dimethyl ethoxy silane used in method (1).
Patent GB-196230-A (GB)
Title: Water waste preventer
IPC: E03D1/18
Filed: 1922-11-02
Abstract: 196,230. Gray, W. H. Nov. 2, 1922. Valve - discharge water - waste preventers.-When the handle A is pulled the lever a is turned about a pivot b and the supply valve B .is closed. At the same time a spindle D carrying an air valve F and a flushing valve E is raised, opening the valve E to flush the closet and the valve F to admit air to the cistern. The cistern is closed except for the air-valve F and a second air-valve governed by a float d.
Patent GB-925536-A (GB)
Title: Improvements in and relating to control devices for gas turbines
IPC: F02C9/28
Filed: 1960-08-15
Abstract: 925,536. Automatic control of gas turbines. J. SZYDLOWSKI. Aug. 15, 1960 [Aug. 20, 1959], No. 28218/60. Class 38 (4). [Also in Groups XXVI, XXXIII and XXXVIII] In a control system for a gas turbine, drivably connected to a helicopter rotor or to a variable pitch propeller, a governor controls the fuel supply to the turbine and the pitch of the propeller or rotor is automatically decreased when the actual rate of fuel flow exceeds a maximum permissible value. As shown, Fig. 3, a slider 67 of a potentiometer 74 is positioned in dependence on the compressor inlet temperature by a bi-metal device 10 and the tapped voltage is applied to a potentiometer 73 the slider 66 of which is positioned by a bellows capsule 2 responsive to compressor inlet pressure. The voltage from the potentiometer 73, representative of maximum permissible fuel flow, is applied to a coil 82 of a relay 84, a coil 83 of which is energized from a slider 68 of a potentiometer 75 positioned by a flow-meter 22 measuring actual fuel-flow. A moving contact arm 85 of the relay engages a contact 86 when the actual fuel-flow is below the maximum permissible fuel flow to permit operation of a pitch control motor 94 of a propeller or rotor 98 by a pilot-operated lever 90 actuating switches 88, 89. Limit switches 100, 101 are actuated by a cam 99. When the actual fuel flow exceeds the maximum permissible fuel flow the moving arm 85 engages a contact 87 to actuate the motor 94 so as to reduce the load on the turbine. The potentiometer 74 may be non-linearly wound to conform with a desired empirical relationship between mass flow and fuel flow. Specifics. tions 696,758 and 914,188 are referred to.
Patent GB-1508594-A (GB)
Title: Shower base
IPC: A47K3/40
Filed: 1975-05-19
Abstract: 1508594 Shower basins GARDEX Ltd 19 May 1975 [26 June 1974 14 Aug 1974 5 Sept 1974] 28266/74 Heading A4N A prefabricated shower base comprises a body having an upper surface defining a bowl and at least one retainer member for securement to the floor, the underside of the body being complementarily shaped to co-operate with said retainer member when positioned thereover to prevent movement of the shower base. In one embodiment, Fig. 2, an integral plastics body 10 of the type disclosed in Specification 1476375 is filled with a structure 15 composed of intersecting slats 16, 17 so as to leave a recess 18 with which a rectangular board 19, secured to the ground by nails 21, co-operates. In a further embodiment, Fig. 5, the cavity beneath the body 10 is partially filled by foamed plastics 39 which is provided with shoulders 41 engaged by a board 42 mounted on a retaining member 43 provided with corrugations and stuck to the floor with pressure sensitive adhesive 35. In a modification, Fig. 4 (not shown), the board is omitted and the foamed plastics filling extends beneath the bottom 13 of the body 10.