baber/WOPTO huggingface dataset:
Patent GB-958367-A (GB)
Title: Closed moulds for casting gaskets on pipe ends
Inventor: HARRISON GEORGE C
IPC: B29C45/14
Filed: 1960-06-28
Abstract: 958,367. Pipe couplings; non-metallic pipes. MINNESOTA MINING & MANUFACTURING CO. June 28, 1960, No. 22649/60. Headings F2G and F2P. [Also in Division B5] A mould for casting annular gaskets in situ on the ends of pipe sections comprises an expansible body for insertion into the end of a pipe section, mechanism for expanding the body into engagement with the pipe section and releasing it, an annular gasket forming member disposed concentric with but spaced from the pipe section and held in position by the expansible body, and injection and vent openings for the admission of a gasket forming heat curing resin and to permit the escape of air. In the case of the spigot end 34 of a pipe section 36 (Fig. 3), the expansible body may be a rubber disc 14 mounted between plates 22, 28 on an axial stud 16, the inner end 18 of which is threaded and carries an adjusting nut 20. The annular gasket forming member 30 has an inturned flange 32 which is held between the spigot end 34 and the plate 28, the disc 14 being expanded radially to centre and hold the annular member 30 by the plates 22, 28 being drawn together on operation of the cam 24. Cam 24 is pivotally mounted on the end of stud 16 and operated by means of lever 26, and the initial diameter of the disc 14 may be controlled by means of the adjusting nut 20 prior to the operation of the cam 24. The mould cavity 48 between the pipe section 36 and the annular member 30 is sealed by means of an O- ring 46. For moulding gaskets in the socket end 54, a similar mould is used (Fig. 4) but in this case the expansible body 56 has a flange 70 at its outer end which seals the mould cavity 82 formed between the annular gasket forming member 78 and the pipe section 36, the injection and vent openings 86, 88 passing through this flange. The annular member 78 is spaced axially from the socket shoulder as at 84, so providing a resin surface to offset dimensional differences which often occur between interfitting spigot and socket ends. In place of a rubber expansible body, a vacuum contractible body which expands upon release of the vacuum, an inflatable bladder, or a mechanical expansible assembly carried by the mould structure could be used. An advantage of using closed moulds over the commonly used open moulds is that vitrified clay pipes are normally stacked in horizontal layers as they are removed from the kiln and the above-described moulds can be mounted on such pipes without disturbing them. They are also useful with fittings such as Y's, T's and elbows as the angular positions of the pipe ends is immaterial.
Patent GB-602184-A (GB)
Title: Improvements in drafting and like machines
IPC: B43L13/08
Filed: 1945-09-03
Abstract: 602,184. Draughting-machines. RESEARCH ENGINEERS, Ltd., MATTHEWS, W. R., and GLADSTONE, W. S. Sept. 3, 1945, No. 22654. [Class 97 (iii)] A member 20 carrying one or more linear scales 8 is secured to a spindle 19 mounted on a supporting head on a parallel motion device and is retained in a desired angular position by frictional means releasable by finger-tip pressure either radial or angular on a ring 1, freely mounted between the operating knob 2 and the head. A protractor 4 is secured to the head and a disc 6, bearing indicating marks to the spindle. The retaining means comprises a lever 9 pivoted about a knife edge 10 resting on the disc 6, the lever being biassed by a blade spring 12 to engage an adjustable screw 11 operating a brake-shoe 7 so as to bring a friction disc 3 secured to the protractor up against the disc 6. The release means comprises a pair of tumblers 13 having spherical ends 16 mounted in holes in the ring 1 on a diameter at right angles to the drawing, the opposite ends 14 being flat and mounted between the lever 9 and a bearing plate 15 on the disc 6. Movement of the ring 1 causes angular displacement of the tumblers, thus raising the inner end of the lever 9 so as to release the brake shoe 7 ; on release of pressure on the ring it is returned by the spring 12 acting through the lever 9 to a position in which the tumblers are upright. The ring 1 may be provided with knobs 21 or depressions or may be knurled.
Patent GB-320704-A (GB)
Title: Improvements in and connected with testing instruments for measuring the mechanical properties of steel and other materials
IPC: G01N3/06
Filed: 1928-08-04
Abstract: 320,704. Hounsfield, L. H. Aug. 4, 1928. Testing physical qualities of materials.-A testing machine in which the load on the specimen is determined by the deflection of a stiff spring, said deflection being measured by a piston fluid gauge operating without appreciable leak, and without dashpot action, has a plate spring 1 which is supported at its ends by cylindrical knife edges 2 resting in rigid buttresses 3 which form part of a base casting 4. Two steel discs 6, 7 connected by two studs 8 partly encircle the spring. One end of the specimen 9 is attached to one disc 7 so that when the other end 10 is pulled the load is transferred through the other disc 6 to the spring. The load is applied by the lever reduction gearing shown or by hydraulic transmission reduction gearing. The deflection of the spring is measured by a magnifying device consisting of a hollow piston 18 fitting into a cylinder, containing a liquid, bored in a post 19 rigidly bolted to the base casting. The piston carries a spiral spring 20 which holds a hemispherical head on the piston against the stiff spring. The cylinder has one outlet 21 connected to the small bore glass tube 22 resting on a graduated scale 23, and another outlet 24 wherein a piston can be adjusted by means of a screw 25 in order to bring the liquid index to zero. A rubber buffer 28 is attached to the post 19 to absorb the energy released when the specimen breaks. The Brinell hardness is measured bv forcing the specimen 67 on to a hard steel ball 61, attached to the back of the steel disc 6, by means of the screw system shown.
Patent GB-615173-A (GB)
Title: Improvements in control-lever mechanism
IPC: B62L3/02
Filed: 1946-07-31
Abstract: 615,173. Control mechanism for cycles. SOMVILLE, C. July 31, 1946, No. 22787. Convention date, Feb. 23. [Class 136 (i)] In a cable control device, particularly for bicycle brakes, comprising a casing, a hand lever and a cable, the hand ]ever 4 is pivotable about a pivot 1 fixed to the casing 2 and carries another pivot 5 about which can turn a member 6 to one end of which member the cable 8 is attached and the other end of which member is in permanent contact with a stop fixed to the casing. The member 6 has an arcuate peripheral groove 7 in which the cable 8 is fastened. At its lower end under the pivot 5 the member 6 has a beak-shaped part 9, the right-hand face of which has a gradient which is initially slight as at 10 and then continues with a short steep curve 11. When the lever 4 is operated in the braking direction, pivot 5 describes a circular arc towards the right about the axis 1 as centre and also drives the member 6 to the right. This causes the curved part 11 to slide off the stop and the curve 10 bears on the stop and increases the rotational movement of the member 6 whose peripheral groove 7 makes a rapid movement towards the right causing an approximately linear and longitudinal displacement of the cable 8.
Patent GB-695340-A (GB)
Title: Improvements in or relating to intercommunication telephone systems
Inventor: ADLER ADOLF ERWIN
IPC: H04M9/00
Filed: 1951-10-01
Abstract: 695,340. Intercommunication systems. MODERN TELEPHONES (GREAT BRITAIN), Ltd. Oct. 1, 1951, No. 22849/51. Class 40 (iv). In a system comprising a loudspeakerequipped master station and a number of substations, each substation speech circuit is connected at the master station through an individual switch to a common two-wire circuit and the operation of any switch directly connects the master station over a separate four-wire circuit to the pertinent substation. Push button calling between substations is effected over leads L1 or L2, operation of hook-switch contacts SH disabling the associated buzzer BZ. The substations brought into use have their speech circuits connected in parallel two-wire relationship at switches K1, K2 in the master station, battery TRB being connected to the two-wire circuit through chokes CH1, CH2. A call from a substation to the master station is initiated over a circuit S1 or S2 and relay RS pulls up to complete an operating circuit at RS1 for a buzzer BZM while a lamp ML1, ML2 lights up to indicate the calling line. In reply, an appropriate switch K1 or K2 is thrown which disconnects the buzzer and connects the receiver R and transmitter T of the calling substation in four-wire relationship with the transmitter TF and loudspeaker LS of the master station. Calls to the master station when engaged are indicated by lamps ML1, ML2 only. If desired, the buzzer may be permanently disabled by a switch BS. Calls from the master station to a substation are initiated by operation of an appropriate switch K1, K2 which disconnects the substation speech circuits from the common two-wire circuit and closes a calling circuit on lead L1 or L2.
Patent GB-1149376-A (GB)
Title: Improvements in or relating to sound-deadening materials
Inventor: CLARK JOHN MICHAEL
IPC: B29C63/00
Filed: 1965-05-29
Abstract: 1,149,376. Laminate. BOSTIK Ltd. 27 May, 1966 [29 May, 1965; 18 June, 1965], Nos. 22929/65 and 25798/65. Heading B5N. [Also in Division B2] A sound-deadening material in sheet form which is capable of being laid on an upward facing surface of a metal panel and is adapted to wilt into conformity with the contour of the surface of the panel when the material is heated in an oven comprises a sheet of filled bituminous composition coated on at least that surface which is intended to be positioned against the panel with a coating of a polyurethane composition fusible at a temperature at which the material wilts into conformity with the surface of the panel and capable on cooling of bonding the sheet firmly to the panel. The bituminous composition preferably comprises a mixture of bitumen with a butadiene-rubber and the sheet thereof is preferably perforated prior to coating. The other surface of the bituminous sheet preferably is coated with a fusible material, e.g. polyethylene or polyurethane. In a preferred embodiment, the perforated sheet is coated with polyurethane by dipping in a polyurethane sheet. The examples describe the application of the sounddeadening materials to metal panels of car bodies.
Patent GB-1523214-A (GB)
Title: Oxygen sensor with catalytic electrode coating
IPC: G01N27/409
Filed: 1976-06-03
Abstract: 1523214 Solid electrolyte oxygen sensor NISSAN MOTOR CO Ltd 3 June 1976 [3 June 1975] 23023/76 Heading G1N In a solid electrolyte exhaust gas oxygen sensor, the electrode contacting the exhaust gas comprises platinum and rhodium with the Pt:Rh molar ratio being between 2:1 and 1:2, this electrode material being a catalyst for the oxidation of carbon monoxide and hydrocarbons and for the reduction of oxides of nitrogen. The reference electrode is laminar and both electrodes are porous. The solid electrolyte is preferably CaO stabilized ZrO 2 .
Patent GB-500421-A (GB)
Title: Improvements in or relating to weighing machines
IPC: G01G1/00
Filed: 1938-08-04
Abstract: 500,421. Weighing apparatus. GRIFFITHS, A. V., and AUTOMATIC SCALE CO., Ltd. Aug. 4, 1938, No. 23032. [Class 143] Tn a weighing-machine the indicator shaft g is rotated by flexible bands h, h<1> stretched between arms c, d actuated from the lever mechanism by a flexible ribbon against the resistance of a spring m or of a pendulous weight. The distance between the axis b of the arms c d and the axis of the shaft g is less than the lengths of the arms. The indicator shaft g is capable of making a complete revolution. The arms may be of a resilient nature to absorb shock due to sudden movement, for example by incorporating blade springs, p, p<1> in the arms ; alternatively a spring may be used to connect the ribbon h<1> to the arm d or the ribbon may be connected to the arm by a spring drum. The effect of the blade springs p, p<1> may be adjusted by means of screws q, q<1>.
Patent GB-1243854-A (GB)
Title: Power assisted motor vehicle steering assembly
Inventor: ADAMS FREDERICK JOHN
IPC: B62D5/22
Filed: 1969-05-06
Abstract: 1,243,854. Vehicle power steering. CAM GEARS Ltd. 23 March, 1970 [6 May, 1969], No. 23037/69. Heading B7H. A power-assisted rack-and-pinion steering assembly comprises a pinion housing 12 slidable parallel to the longitudinal axis of a rack housing 4, and a valve 24 connected to the pinion housing 12 for controlling fluid flow to a power assistance ram, the valve being actuated by movement of the pinion housing relative to the rack housing, the pinion housing being spaced radially from the rack housing by spaced Bellville washers 8A, 8B. The relative movement between the two housings, which arises from reaction to turning of the road wheels on the road, is limited by a stop pin 16 secured to the pinion housing 12 and slidable in aligned axial slots 18, 19 in the spacer sleeve 6 and rack housing 4. Pin 16 is connected by adjuster nut 26 to spool valve 24. The Bellville washers may be pre-loaded in the neutral position of steering. In the displaced position of the steering one of the washers, e.g. 8A, exerts no spring face between the housings while the other, e.g. 8B, exerts a restoring force due to its being further loaded (Fig. 2). The washers are adjustable by means of a lock-nut 14.
Patent GB-1044005-A (GB)
Title: Improvements relating to electric batteries
Inventor: GRAY ROBIN
IPC: H01M50/105
Filed: 1962-06-15
Abstract: 1,044,005. Batteries. CHLORIDE BATTERIES Ltd. June 14, 1963 [June 15, 1962], No. 23062/62. Heading H1B. Activating liquid is made to rise through the interleaved electrodes and separators 12 of a cell such that any entrapped air escapes through a vent 21 in a thin-walled inner casing 20 surrounding the electrodes and separators 12, the liquid entering the cell casing 13, e.g. via filling hole 18, being diverted by the inner casing 20 to the bottom of the electrodes and separators 12. The liquid may be contained in a compartment within the cell casing 13, and a spring-loaded plunger is provided to open this compartment when required. The inner casing 20 is of rigid polystyrene, P.V.C. or polyethylene, and resistant to the electrolyte. Alternatively, casing 20 is a flexible bag or envelope of polyethylene or P.V.C. Polyvinyl alcohol may be used if it is to be destroyed by the electrolyte after it has served its purpose.
Patent GB-1440339-A (GB)
Title: Apparatus for bending pipes or other elongated articles and an  attachment therefor
IPC: B21D7/16
Filed: 1973-05-15
Abstract: 1440339 Binding metal J PALLISER 31 July 1974 [15 May 1973] 23090/73 Heading B3E  Apparatus for bending pipes or other elongated articles of the kind comprising a former over which the article is bent and means for clamping the article at one side of the former in opposition to the bending force, includes means for locating in the bending plate of the apparatus a part of the article lying remote from an existing bend in it. In the embodiment shown in Fig. 1, the locating means has a frame 11 mounted to be pivotable about the former axis. A square rod 25 bearing locating indicia is slidable in block 19 and can be secured by screw 29, and supports channels 23, 24 suitable for two different size pipes. The selected channel is changed by dropping a round part 26 of rod 25 into block 19 so that the rod can be rotated. In Fig. 1 the device is inoperative, leg 21 resting on the bending machine, for a first bend to be made in a pipe. In Fig. 4c, the bent pipe has been located in the appropriate channel, the frame 11 tilted and locked by screw 34, Fig. 1, and rod 25 located in block 19 so that the pipe is correctly positioned for a second bend bringing the remainder of the pipe parallel with the portion lying in the channel to produce a double bend having an offset C-C as measured on rod 25. Alternative bending stops 18, 18<SP>1</SP>, Fig. 1, for the alternative pipe sizes may be used. The channels 23, 24 may be so positioned on rod 25 that one side of block 19 indicates the offset on rod 25 for one pipe size, and the other side for the other pipe size.
Patent GB-655905-A (GB)
Title: A new or improved apparatus for the concentration or cleaning of minerals by froth flotation
IPC: B03D1/26
Filed: 1948-09-01
Abstract: 655,905. Froth flotation cells. JONES, W. I., JONES, D. C. R., GREGORY, D. H., and NATIONAL COAL' BOARD. Sept. 1, 1948, No. 23093. [Class 82(ii)] In a froth flotation cell in which air is admitted through the pores of a porous sloping bottom, the latter consists of powdered metal or glass rendered coherent by sintering. The bottom is substantially smooth and may be formed from square tiles 25 of the sintered material secured in position by clamping at their edges, screwing, cementing or soldering, as by means of cross-pieces 27. Joints between the tiles may be covered by thin strips. The pores are substantially even in size, less than 30 microns at the surface, with a porosity of about 37 per cent.
Patent GB-924047-A (GB)
Title: Abrasive polishing compositions and process of forming same
IPC: C09K3/14
Filed: 1960-07-01
Abstract: An abrasive polishing composition, suitably an aqueous dispersion, comprises (a) a particulate abrasive material, e.g. zirconium oxide, rouge, a mixture of rare earth metal oxides, but preferably ceric oxide, and (b) gelatinous ceric hydroxide which may or may not contain cerous hydroxide as well.  The composition is conveniently produced as a dry mix consisting of the particulate abrasive material, a cerium salt such as ceric ammonium sulphate or nitrate, ceric sulphate, cerous sulphate or cerous nitrate, and a reactant which generates hydroxyl ions in aqueous solution such as sodium, potassium or ammonium hydroxide, sodium carbonate, trisodium phosphate, or sodium meta- or tetraborate, from which the composition of the invention is formed on adding to water.  In other embodiments the particulate abrasive material and the cerium salt are dispersed in a solution of the reactant, or the abrasive material is dispersed in the reactant solution and the cerium salt then added.  In general, in the final composition the weight ratio of (b) to (a) is 1:10 to 1:3 ((b) being calculated as ceric oxide).
Patent GB-881780-A (GB)
Title: Electronically controlled milking installation
IPC: H03K3/282
Filed: 1959-07-06
Abstract: 881,780. Milking machines. ECREMEUSES MELOTTE S. A. July 6, 1959 [Feb. 19, 1959], No. 23154/59 Class 5(1). [Also in Group XL(c)] An electronically controlled milking installation includes an electromagnetic valve 19 for controlling the pulsations and a pneumatic relay 1 wherein the relay comprises an upper radial conduit 5 to which tubes leading to the milking cups are connected and there is provided a chamber 3 which is open at the bottom and forms a seat for a ball 8 retained by pins 9, which ball drops as the pressure in a conduit connecting the electromagnetic valve to the pneumatic relay begins to rise giving an additional re-entry of air into the chamber 3 enabling the massage of the teats to be accelerated. The electromagnetic valve comprises a coil 20 which operates a ball 25, the coil being actuated by an electronic impulser.
Patent GB-1061355-A (GB)
Title: Fluid control valve
IPC: B60T15/04
Filed: 1965-05-31
Abstract: 1,061,355. Compressed air brakes; valves. WAGNER ELECTRIC CORPORATION. May 31, 1965 [Sept. 10, 1964], No. 23157/65. Headings F2F and F2V. A brake valve 3 has an outlet port 20, an exhaust port 29, a control port 21 and an inlet port 19 the two latter being connected to a compressor through separate reservoirs, the line to port 19 including a check valve and that to port 21 incorporating a manual valve whereby the port may be cut-off from its reservoir and vented. With the manual valve closed the pressure at port 21 enters a control chamber 64 via a passage 65 whilst pressure at port 19 enters another control chamber 66 by passages 45, 67; the effective area of a control piston 57 forming one wall of chamber 65 is greater than that forming an opposite wall of chamber 66 whereby the piston 57 is urged against a stop 53. When the operator applies the brakes a plate 52 is lowered, as is a reaction piston 37 connected thereto by a metering spring, in opposition to a return spring 39 to engage a surface 62 on the piston 57 with a closure member 35 and so interrupt communication between ports 20, 29. Further movement of the piston 57 unseats the member 35 and connects ports 19, 20 via a chamber 38, one wall of which is formed by the piston 37, which latter is thereby lifted against the metering spring until the valves occupy " lapped " positions. Should the pressure supply to port 21 fall or fail, the pressure in chamber 66 urges downwardly the control piston 57 to open the closure member 35. In the event of a broken operator treadle or linkage the member 35 can be unseated by opening the manual valve to exhaust the chamber 64.
Patent GB-820913-A (GB)
Title: Control apparatus for internal combustion engine
Filed: 1957-07-22
Abstract: 820,913. Gas turbine plant. BENDIX AVIATION CORPORATION. July 22, 1957 [Sept. 14, 1956], No. 23163/57. Class 110 (3). [Also in Group XXIX] In a gas turbine fuel regulating system the fuel metering valve 84 is controlled through arms 78, 80 in accordance with engine speed and throttle setting by a cam and a planetary transmission, of which latter one member (annulus 60) is operatively connected with the cam, a second member (planet 58) to the throttle control lever 46, and a third member (sun-wheel 62) to an engine speed responsive device 66. In the arrangement shown, the outer surface of the annulus 60 itself is formed with three cam surfaces 72, 74, 76 controlling valve 84 under engine accelerating, steady state, and engine decelerating, conditions respectively. The radial position of planet 58 is adjusted by rotation of a cam 52 consequent upon movement of throttle lever 46, and sun-wheel 62 is carried by a shaft 64 rotated by the speed responsive member 66 through a rack 68 and pinion 70. In addition, adjustment of planet 58 may be effected by translational movement of cam 52 by means of a member 42 responsive to pressure or temperature in the compressor inlet. An acceleration cam 69 also mounted on shaft 64 acts conjointly on valve 84 through control lever 80. As shown in Fig. 4, the fuel metering valve consists of a spring-loaded ported sleeve 112, the axial position of which is varied, to regulate supply of fuel from pump 30, by pressure liquid supplied through pipe 116 to the space 110 above the sleeve and controlled by a leak-off valve 82 at the end of lever 80. The rotary position of sleeve 112 may be varied by a control valve 117 in accordance with compressor discharge pressure, or any other desired engine-operating parameter. The rack 68 of the engine speed responsive member 68 is actuated by a piston subjected to pressure liquid supply to a cylinder provided with a leak-off valve operated by a centrifugal weight in accordance with engine speed, Fig. 3 (not shown). Control arms 78, 80 may be moved axially along supporting rod 86 to modify the action of their associated cams, and similar results may be obtained by pressure and/or temperature responsive devices which impart axial movements to the cams, Fig. 7 (not shown). In addition the side of annulus 60 may be formed with a cam surface for effecting appropriate axial displacement of member 60.
Patent GB-231652-A (GB)
Abstract: 231,652. Heath, F. G. March 11, 1924. Knitting - appliances, hand. - To prevent stitches from being dropped from work laid aside the points of knitting needles are struck through a resilient device consisting of coiled wires 1 bent into sleeve form and connected by loops 3 and rings 4. The whole device or the parts 4 may be made of rubber.