baber/WOPTO huggingface dataset:
Patent GB-690991-A (GB)
Title: Improvements relating to valves for use in hydraulic apparatus
IPC: B67D7/36
Filed: 1949-07-27
Abstract: 690,991. Valve closure members. WAYNE TANK & PUMP CO., Ltd., and SMALE, N. E. Aug. 14, 1950 [July 27, 1949], No 19701/49. Class 135 A stop valve for use in hydraulic apparatus comprises a lift valve 10 combined with a ported sleeve valve 14, the composite valve being movable in a ported liner 15b and carrying a pressurebalancing valve 18 which opens before the main valve when the latter is actuated. In the closed position shown, liquid can leak from the annular inlet passage 16 to the inside of the liner, and when the actuating lever 21 is depressed, it first depresses a tappet rod 17 to open ball valve 18 to allow the pressure liquid on the inlet side of valve 10 to flow past the rod 17 and out through ports 13c to the outlet side of valve 10 and so balance the latter. Further depression of lever 21 causes it to contact the main stem 13 of valve 10 and so open the latter along with the sleeve 14 to allow the full flow of liquid. As the main valve closes, the ports in the liner are shut off by the sleeve 14 before the lift valve 10 closes on to its seat. Specification 690,990 is referred to.
Patent GB-279957-A (GB)
Title: Improvements in or relating to centrifugal fans, blowers and the like
IPC: F04D29/46
Filed: 1926-08-10
Abstract: 279,957. Fell, L. F.R. Aug. 10, 1926. Regulating or controlling; casings.- A centrifugal fan or blower is constructed with the impeller of different diameters, each part of which is arranged to deliver into the same outlet chamber, and the part of larger diameter being provided with a separate controlling device in order that the air delivery may be regulated to be approximately constant or to increase as the speed increases. The impeller 1 with the parts 2, 3 of different diameters is mounted by means of a cone 4 on a driving shaft driven by the engine to be cooled by the fan, the casing having an axial air inlet 7 and a concentric air outlet 8. A partition 9 is positioned where the two parts 2, 3 of the impeller blades join. A sleeve 11 is provided for the part 2, its position being adjusted by threaded rods 12, nuts 13. Sprocketwheels 14, endless chain 15, and hand-wheel 16. The larger diameter 2 of the impeller blade is closed down by the sleeve 11 as the speed increases. The application of the device to an air brake is referred to. According to the Provisional Specification, a sleeve-like control device may be applied to the smaller diameter of the impeller.
Patent GB-894508-A (GB)
Title: Improvements in or relating to shoe heels
IPC: A43B21/38
Filed: 1958-06-19
Abstract: 894,508. Heels. ATTOL Ltd., and FROST, H. W. June 19, 1959 [June 19, 1958; Sept. 30, 1958], Nos. 19713/58 and 31263/58. Classes 17(2) and 17(3) A heel is reinforced by a metal rod 11 extending upwards from the lower surface to a point short of the full length of the heel bent at which the heel itself can withstand normal stresses, at least the lower portion of the rod having a longitudinal internal passage the internal walls of which are threadedly engaged by the screw which secures the top piece. The heel may be formed of wood or synthetic resin which may be reinforced by glass wool. The rod 11 may have a threaded passage 12 to receive the screw 15 securing the top piece 14, as in Fig. 1, or the passage may be smooth and extend the length of the rod and receive a selftapping screw. Alternatively, as in Fig. 3, the top piece 14 may be omitted and the head 17 of screw 16 provide the walking surface, a spring washer 18 being provided between head 17 and the heel. The rod may be secured to the heel by cement 13. The lower end of rod 11 may be flanged to extend between the top piece and the lower end of the heel or a flanged ferrule surrounding that end. The heel may be covered.
Patent GB-992741-A (GB)
Title: Preparation of cigarette filter tips
IPC: A24D3/10
Filed: 1960-06-03
Abstract: The filtration material of cigarette filter tips is composed, at least partly, of cellulose acetate with an "active" porous micro rugose surface.  The "active" cellulose acetate may be in the form of filaments or fibres made as described in Specification 992,740, impregnated or coated on to one or both sides of a carrier matrix such as paper tissue or fabric, precipitated from a solution containing added fibrous material, of expanded cellulose acetate sheet, or of non-active cellulose acetate treated with a solvent or vapour thereof accompanied or followed by treatment with a precipitant.  The sheet or mat of active cellulose is shredded and formed into filter tips with cigarette making machinery.
Patent GB-147756-A (GB)
Title: Improvements in telephone and the like systems
IPC: H04B1/58
Filed: 1920-07-08
Abstract: 147,756. Latour, M. May 23, 1919, [Convention date]. Repeating and amplifying systems; thermionic repeaters; induction, preventing and minimizing. -In a telephone or like system, an amplifier at an exchange has its input circuit connected to a subscriber's line, and its output circuit to a trunk line, so as to amplify signals passing from subscriber to trunk line. Signals coming in on the trunk line do not pass through the amplifier, but through a transformer to the subscriber's line. Artificial lines are connected both in the input and output circuits, with balanced connexions to prevent the amplified outgoing signals from affecting the subscriber's line and the input circuit of the amplifier. As shown in Fig. 1, one of the terminals 12 of the subscriber's line is connected through an artificial line 13 and the secondary coil of a transformer 10 to the other terminal 12. The primary coil of the transformer 4 feeding the grid circuit of the valve 1 is connected between one terminal 12 and an intermediate point on the coil 10. The secondary coil of the output transformer 7 is connected across the trunk terminals 8, one connexion including an artificial line 11. The primary coil of transformer 10 is connected between one terminal 8 and an intermediate point on the secondary of the transformer 7. The transformer 10 may be replaced by an auto-transformer or by a resistance coil.
Patent GB-495130-A (GB)
Title: Improvements in or relating to spinning, twisting and like textile frames
IPC: D01H1/20
Filed: 1937-07-17
Abstract: 495,130. Driving arrangements for spinning &c. frames; machinery guards. PLATT BROS. & CO., Ltd., and HUGHES, J. July 17, 1937, No. 19824. [Classes 120 (ii) and 120 (iii)] [Also in Group XXIV] In spinning, twisting, or like frames, the driving- motor 21 and the connections to the tin roller shaft 20 are housed in a closed compartment between the headstock 10 and the end frame 12, and the gearing from the tin roller shaft is mounted on the front side of the headstock, the doors of the compartment being interlocked with the starting-switch of the motor. The headstock and end frame are connected by angle pieces or buffets 13, and are mounted on a bedplate 11. A change wheel 27 is mounted on the tin roller shaft, the carrier 29 being adjustable radially of the twist wheel 28. A change wheel 30 is compounded with the wheel 28 and is geared with the roller gears by interchange gears 31, 37 to make the necessary change when changing from twist to weft. Spur gearing is preferably used for the building- motion transmission, and the winding-back quadrant 47 is carried on the inside of the buffet 13. The bearings of the tin roller may be adjustable vertically in the framing. Fig. 3 (hot shown). The change wheels are mounted on fixed studs and secured by washers engaging slots in the studs. The doors are suitably apertured for vision of an indicator geared with the rollers, and to give ready access to the pick wheel. Interlocking-gear for the doors and the motor-switch-handle 60 comprises a slotted tumbler 64, Figs. 5, 5a, mounted in a box 61 on the headstock. When the switch is " on," a finger 72a on a lever coupled with the handle 60 by a rod 73 engages a slot in the tumbler and maintains it in position so that arms 69 projecting from the door are engaged by the end of a recess 66 in the tumbler and movement of the door is prevented. When the switch is " off,'' the finger 72a is disengaged and the door may be opened, the arms 69, during such opening, turning the tumbler so as to present the unslotted part to the finger 72a and thereby preventing movement of the switch-handle until the door is closed and the tumbler raised by the arms 69.
Patent GB-862910-A (GB)
Title: Improvements in or relating to pneumatic tyres for vehicle wheels
IPC: B60C11/11
Filed: 1958-06-20
Abstract: 862,910. Tyre treads. PIRELLI S.p.A. June 20, 1958 [April 2, 1958], No. 19836/58. Class 144 (2). A pneumatic tyre has a tread A comprising at least one pair of main circumferential rows 1, 2, 3, 4 of blocks disposed symmetrically one wholly on each side of the mid-plane of the tyre with the blocks of the or each pair of main rows being relatively circumferentially staggered, and a pair of subsidiary circumferential rows of blocks 20 disposed symmetrically one upon each side of the mid-plane with their blocks transversely aligned, each block of the main rows being transversely aligned, and coextensive circumferentially, with two successive blocks in the adjacent subsidiary row. As shown, each block in the main rows is of rectangular shape with two recesses 10, 11 in that side thereof facing the mid-plane of the tyre. Adjacent blocks 20 are separated from each other by a block 21 of smaller transverse width and circumferential length, but of the same radial height as the blocks 20, recesses 22 and 23 extending into the shoulders B, C serving to separate each block 21 from the adjacent blocks 20. The shoulders B, C comprise blocks 30 continuous with the blocks 20 and separated from each other by recesses 33. Each shoulder portion of the tyre comprises also concentric circumferential ribs 31, 32.
Patent GB-531962-A (GB)
Title: Improvements in or relating to life preserver belts
IPC: A41D7/00
Filed: 1939-07-08
Abstract: 531,962. Life preserver belts. PETERSON, G. J. July 8, 1939, No. 19931. [Class 77]  An inflatable life preserving belt 20, Fig. 2, comprises a fastening buckle 30 adapted to contain a compressed gas cartridge 46 and provided with a socket member 38 communicating with the interior of the belt and making a gas-tight fit by the aid of a rubber collar 39 with the neck of the cartridge. The cartridge is pierced by a pin 42 mounted on a lever 52 arranged inside the belt when it is desired to inflate the belt. The belt is provided with a take-up device, Figs. 8, 9 and 10, consisting of a rectangular frame 64 with pivotally mounted end members 80 which, when the belt is deflated, engage with catches 76 on a U-shaped member 68 secured to the frame 64. The belt is threaded through the take-up device, as shown in Figs. 8 and 9, and when the belt is inflated the catches are released and the belt allowed to extend. Fig. 17 shows a modification in which the cartridge 120 is supported in a member 106 provided with a rubber lined socket for receiving the neck 122 of the cartridge. The cartridge is pierced by a pin 116 mounted on a spring-pressed lever 114 pivoted to the socket. The belt may be accordion pleated and made of rubber or of fabric lined with rubber. Specification 445,997 is referred to.
Patent GB-1466837-A (GB)
Title: Radial piston machine
IPC: F04B1/107
Filed: 1975-05-12
Abstract: 1466837 Reciprocating pumps and motors ROBERT BOSCH GmbH 12 May 1975 [18 May 1974] 19943/75 Heading F1A In a radial piston pump or motor comprising a rotary cylinder block, Fig. 1 (not shown) supported by a pintle valve and housing radial pistons engaging an eccentric ring, the pintle valve 55 has high and low-pressure control ports 13, 14, annular grooves 19, 20, or peripheral grooves interconnected to form continuous paths, defining sealing webs between them and the control ports and bearing webs on their sides remote from the control ports, and compensating grooves 30, 31 and 34, 35 extending in the bearing webs on either side of the control ports, the bearing capacity in the region of the high-pressure port being reduced by connecting the associated pair of compensating grooves to the low-pressure side of the machine, i.e. either the housing interior or the low-pressure control port, and/or the bearing capacity in the region of the low-pressure control port being increased by connecting the associated pair of compensating grooves to one or both of the annular grooves 19, 20. For the reversible flow pump or motor shown, a slide valve 59 in the pintle valve is controlled by the control port pressure, acting against a spring or hydraulic pressure bias, to connect the appropriate pair of compensating grooves to low-pressure according to which control port is under high or low-pressure. In a non-reversible pump or motor, Fig. 2 (not shown), the compensating grooves are appropriately connected to the housing interior and the annular grooves by axial grooves in the pintle valve. In other embodiments for reversible pumps or motors, Figs. 4 to 11 (not shown), the connections to the compensating grooves are controlled by check-valves, a single slide valve or pair of slide valves.
Patent GB-1236954-A (GB)
Title: Improvements in and relating to electrodeposited composite coatings
Inventor: KEDWARD ERIC CHARLES
IPC: C25D15/02
Filed: 1968-04-26
Abstract: 1,236,954. Electro-depositing composite coatings. BRISTOL AEROJET Ltd. July 28, 1969 [April 26, 1968], No.19977/68. Heading C7B. A surface, e.g.of metal or graphite, is coated with a composite coating of a metallic matrix having particles included therein by electrodeposition in an electro-plating solution containing the particles and in which a stream of gas bubbles having diameters no more than 1 mm is caused to flow across the surface during deposition. Thus wear and abrasion, corrosion and oxidation resistant coatings may be electro-formed. Ni, Sn, Cr, Co, Cu, Au or Ag metal, or W-Co, Sn-Ni, Sn-Nb or Ni-Cr alloy matrix may be electrodeposited with particles of MoS 2 , WS 2 , ZrB 2 , WC, SiC, Si 3 N 4 , BN, Be, W, B, graphite, C fibres or PTFE. Preferably the stream of bubbles is produced by passing gas through a sintered material having fine passages therein. For a dry lubricant coating of MoS 2  in a Ni matrix, the solution may contain Ni sulphamate and chloride with boric acid.
Patent GB-1103184-A (GB)
Title: Improvements relating to semiconductor circuits
IPC: H01L29/06
Filed: 1965-05-12
Abstract: 1,103,184. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. 12 May, 1965 [27 May, 1964], No. 19980/65. Heading HlK. In a planar semi-conductor device a junction is covered with an insulating layer on top of which is located an electrode. The circuit of the device is arranged so that the insulated electrode is biased negatively with respect to the region in which an inversion layer forms. As shown, Fig. 6, a planar PNP transistor is produced with an electrode 62 overlying the oxide layer 16 over junction 14. A diode may be similarly constructed by omitting the emitter diffusion, Fig. 5 (not shown). Similar devices of opposite configuration (i.e. with the impurity types of their regions reversed) may also be constructed, e.g. the diode of Fig. 1 (not shown), and in this case the electrode over the oxide layer and the outer (or only) one of the electrodes contacting the semi-conductor may be combined, Figs. 3 and 4 (not shown). The diode of Fig. 1 (not shown), may be produced in an N-type silicon wafer, the surface of which is masked by thermally oxidation or by decomposition of an organic siloxane compound, by diffused-in boron to form a P-type region. The electrodes are deposited by evaporation or plating. The semi-conductor material may also be germanium or an intermetallic compound.
Patent GB-423033-A (GB)
Title: Improvements in or relating to home cinematograph sound apparatus
IPC: G03B31/00
Filed: 1933-07-15
Abstract: 423,033. Kinematograph apparatus. KOLB, O. K., 39, Beverley Court, Wellesley Rnad, Chiswick, WENDER, E. J., 33, Mowbray Road, Brondesbury, and BRITISH ACOUSTIC FILMS, Ltd., 142, Wardour Street, all in London. July 15, 1933, Nos. 20061 and 24703. [Class 97 (i)] [See also Group XXXVIII] A portable kinematograph and sound projector is fitted in a closed case of substantially rectangular shape divided by a partition into two compartments, one (Fig. 1) containing the feeding elements directly associated with the film motion and the other (Fig. 3) containing the driving- motor and its associated gears. In the construction shown, the partition 1 is formed by two spaced and stepped walls 2, 3. The picture projection lamp 5 is arranged in a casing 4 behind the shutter 8, which operates through a slot 7 in the wall 3, and the usual projection devices 9, 10. The film is fed from a spool 33 to the gate 9 and then passes in a flexible loop to an adjustablybraked roller 20 and over a roller 18 containing a photo-electric cell in front of the soundoptical system 19 and its lamp 60. The film is then led over a grooved or roughened roller 16 carrying a flywheel 17, into a loop tensioned by a roller 14, and over sprocket 13 to the take-up spool 12. On the opposite side of the partition (Fig. 3) is mounted the motor 38 which is directly connected to the spindle of the Maltese cross 31, and drives the spool spindle 34 through worm gearing 43, 44 and chain 45. Fig. 3 also shows an adjustable damping-spring 42 connected to a link 54 carrying the film-tensioning roller 14. The casing may be adjusted for vertical alignment by means of a threaded spindle 59 having a milled head 47 housed in a wall-slot 48 and engaging a nut 49 which is formed with a projecting foot 50. The partition may be formed of aluminium or other metal, artificial resin, or wood ; all the walls may be lined with baize cloth 52 or other non-resonant material and rubber 53 may be fitted at the partitionwalls. As shown in Fig. 6, the take-off spool 33 may be mounted on a hinged bracket 58 so as to be capable of movement out of the casing.
Patent GB-301406-A (GB)
Title: Improvements in or relating to pyrotechnic devices
IPC: F42B4/20
Filed: 1927-07-28
Abstract: 301,406. Jones, J. W., and Harris, W. H. July 28, 1927. Pyrotechnic devices. - Flares and like lights are attached to a holder, which is detachably slid into a corresponding support on the aircraft, and the holder is provided with electric contacts connected to an electric igniter for the flare and adapted to bear against corresponding contacts on the support. A shield is arranged over and to one side of the flare, and the flare and its shield are supported in a sloping position. As shown, the flare holder comprises a shield 12, Fig. 1, a band clamp 14 for fastening the flare, a frame 11, and a member 2 formed with a tapered dovetail 3, Fig. 4, adapted to slide into a corresponding groove in a support 1 attached to the aircraft. Contacts 10 on the member 2 bear against contacts 6 on the support 1 and establish electrical communication between the flare, and the aircraft.
Patent GB-934550-A (GB)
Title: Package and method of packaging
IPC: B65D59/06
Filed: 1961-06-05
Abstract: 934,550. Packaging. NATIONAL BISCUIT CO. June 5, 1961 [June 7, 1960], No. 20166/61. Class 94(1). Biscuits or the like are advanced continuously from, for example, the oven, in an unbroken column about which a web of heat shrinkable film is tubed, the longitudinal seam being sealed and heat applied to the film to draw the tube tightly about the biscuits. The filled tube is severed progressively into package sections by a blade, hot wire &c. and plastics end caps applied. The method is applicable to various biscuit shapes. The residual heat of the biscuits may be used for shrinking.
Patent GB-804748-A (GB)
Title: Improvements in or relating to electric motor driven compressors for hermetically sealed small refrigerating units
IPC: F25B31/02
Filed: 1957-06-26
Abstract: 804,748. Refrigerator compressors. STEMPEL-HERMETIK G. m.b. H. June 26, 1957 [Aug. 9, 1956], No. 20218/57. Addition to 792,139. Class 8(1). [Also in Group XXIX] In a motor driven compressor as claimed in the parent Specification the cylinder cover 5 is so designed that its peripheral surface 26 extending from the front face containing the suction valve aperture 9 forms with the inside wall of the cylinder head end 3, or with the wall of a special cover optionally provided for closing the cylinder head end, a cavity R which is in communication (e.g. via radial bores 28) with the suction valve channel 7 and also (e.g. via a slot-like opening 27 and a chamber 20a in a connecting member 23) with a chamber 22a in the motor support 18 leading (via ducts not shown) to the suction silencer S.
Patent GB-854586-A (GB)
Title: Improvements in or relating to extruded foamed polystyrene
IPC: C08J9/12
Filed: 1959-06-12
Abstract: An extruder foamed polystyrene which has an average cell size not exceeding 0,004 inch, an average cell wall thickness not exceeding 0,0004 inch and a density of from 0,75 to 8 lb/cu. ft. is produced as tube or film having a thickness of from 0,005 to 0,3 inch by extruding in a conventional extrusion apparatus using a cylinder temperature of 150 DEG  to 260 DEG F. and a die temperature of 225 DEG  to 290 DEG F. polystyrene in the form of particles which include from 4,5 to 9% of an aliphatic hydrocarbon (b.p. 30 DEG  to 90 DEG C.) and which are homogeneously admixed with a CO2 liberating agent and an acid, the acid having at least 3,0 milli-equiv. of acetic hydrogen/gram, in sufficient amount so as to produce upon reaction a total of 5% by weight of water and CO2 based on the weight of polystyrene particles.  For example, 0,5% of sodium bicarbonate and 0,4% of citric acid may be homogeneously mixed with the particles. The extrudate may be heated, e.g. by passing through a tank of hot water or a steam chamber, to expand it further, or it may be treated with a blast of cold air as it leaves the die orifice to cause the formation of a tough glazed skin.ALSO:An extruded foamed polystyrene which has an average cell size not exceeding 0,004 in., an average cell wall thickness not exceeding 0,0004 in. and a density of from 0,75 to 8 lb./cu. ft. is produced as tube or film having a thickness of from 0.005 to 0,3 in. by extruding in a conventional extrusion apparatus using a cylinder temperature of 150 DEG  to 260 DEG F. and a die temperature of 225 DEG  to 290 DEG F., polystyrene in the form of particles which include from 4,5 to 9% of an aliphatic hydrocarbon (b.p. 30 DEG  to 90 DEG C.) and which are homogeneously admixed with a CO2 liberating agent and an acid, the acid having at least 3,0 milli-equiv. of acetic hydrogen/gram, in sufficient amount so as to produce upon reaction a total of 5% by weight of water and CO2 based on the weight of polystyrene particles.  For example, 0,5% of sodium bicarbonate and 0,4% of citric acid may be homogeneously mixed with the particles.  The extrudate may be heated, e.g. by passing through a tank of hot water or a steam chamber, to expand it further, or it may be treated with a blast of cold air as it leaves the die orifice to cause the formation of a tough glazed skin.
Patent GB-169550-A (GB)
Title: Improvements in colliery tram shackles
IPC: B61G1/00
Filed: 1920-07-10
Abstract: 169,550. Strathern, A. G. July 10, 1920. Couplings, nor-automatic. - In a shackle for use in coupling colliery trams, two plate members A are connected by means of studs B, C formed integrally with shoulders serving as distance-pieces. The ends of the plates A are bcred for the reception of the usual draw-pin D. The studs B, C are riveted over, or welded or otherwise secured to the plate members A.