baber/WOPTO huggingface dataset:
Patent GB-483511-A (GB)
Title: Improvements in or relating to safety devices for sealed photographic flash lamps
IPC: F21K5/08
Filed: 1936-11-11
Abstract: 483,511. Actuation of switches. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand Ges. fur Elektrische Gl³hlampen) Nov. 11, 1936, No. 30787. [Class 38 (v)] [Also in Group XXI] A pressure-sensitive device or cut - out in the form of a Bourdon tube 9 is provided within the bulb 1 ofa sealed photographic flashlamp of the kind filled with oxygen at a pressure below atmospheric and containing aluminium foil 8 which is arranged to be ignited by an incandescible filament 7, the Bourdon tube being adapted to break the filament circuit in the event of air leaking into the bulb and causing the pressure to exceed a predetermined limit. The Bourdon tube is fixed at one end to a leading-in wire 3 and at the other end carries a leaf-spring 10 which normally bears upon a wire 5 supporting one end of the filament 7, the other end of the filament being supported by a leading-in wire 4. The circuit between the wires 3, 4 is thus completed by the Bourdon tube 9. When the pressure in the bulb exceeds the predetermined limit the curvature of the Bourdon tube increases thereby breaking the contact between the spring 10 and wire 5. Specification 19431/97, [Class 38], is referred to.
Patent GB-1060393-A (GB)
Title: Semiconductor glass
IPC: C03C3/076
Filed: 1963-08-06
Abstract: An electronically conducting semi-conductive glass composition having a room-temperature resistivity of from 104 to 1018 ohm-cm., comprises (a) SiO2, GeO2, or P2O5, and (b) 15-80 mole per cent based on the final glass composition of an oxide of Cr, Fe, Sb, Ni, Co, V, Mo, W, or As; the balance, if any, consists of other compatible constituents.  Oxide (b) is present in at least two different valence states, the number of ions in the higher and lower valence states being in the ratio of from 9: 1 to 1: 9.  The composition may also comprise (c) an alkaline earth metal oxide glass network modifier in amount of 30-60 mole per cent based on the total of (a) + (c).  (c) may be CaO, BaO, SrO, MgO, or mixtures thereof. The valence state ratio can be regulated by oxidizing or reducing action, e.g. by means of carbon black, Pt, Ti, Fe, air, O2 or H2, performed during or after the preparation or formation of the glass.  The glass may be used as described in Specification 1,058,186.
Patent GB-505505-A (GB)
Title: Improvements relating to electric heating tools such as soldering irons
IPC: B23K3/03
Filed: 1937-11-11
Abstract: 505,505. Electric soldering-irons &c. BRYCE, Ltd., and COLLEY. G. Nov. 11, 1937, No. 30993. [Class 39 (iii)] A low-voltage soldering-iron or like tool is provided with a bare metal heating resistance 1 conductively connected with the bit 2 and enclosed within the tubular extension 3 without the interposition of insulating material. The handle comprises concentric tubes 9, 10 connected to the supply leads and fitted with a wooden grip 14. The resistance 1 is of nickel chromium wire welded at one end to the bit and at the other end to a rod 4 secured to the tube 9. The extension 3 is screwed into the tube 10 and is surrounded by an asbestos sheath 22. In Fig. 2, a finned portion 19 is arranged in the extension 3 to retard flow of heat to the handle.
Patent GB-1217818-A (GB)
Title: Luminescent materials
IPC: C09K11/08
Filed: 1969-06-19
Abstract: 1,217,818. Luminescent materials. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 19 June, 1969 [22 June, 1968], No. 31024/69. Heading C4S. A phosphor comprises a divalent Eu activated alkaline earth metal orthophosphate having the formula where x+y+r+q=3; 1.6 # x # 0À7; 2.3 # y # 1.4 ; 0À1 1 # r # 0.005 and 0À15 # q # 0. The phosphor is prepared by heating twice in N 2  and H 2  a mixture of CaHPO 4 , MgNH 4 PO 4 , MgCO 3 , Eu 2 O 3  and optionally MnNH 4 PO 4  in quantities which provide a slight excess of phosphate. The phosphor is used in C.R.T.'s and Hg discharge lamps for document reproduction and plant growth.
Patent GB-187865-A (GB)
Title: Improvements in apparel corsets
IPC: A41C1/08
Filed: 1921-11-21
Abstract: 187,865. Kops, D. Nov. 21, 1921. Corsets.-A corset has a front steel portion 13 which has an extension 20 below the lower end of the steel and a yielding non-adjustable strap 19 of elastic or the like is attached to the lower end of the extension and extends to the upper portion of the abdominal section. The lower edge of the strap lies in the groin section of the wearer so that after adjustment of the garment to position the lower portion of the abdomen is supported. The upper edge 23 of the strap is inclined downwardly and the lower edge 24 inclined upwardly. Depending skirt parts 25 are also employed in the corset. Specification 23407/12 is referred to.
Patent GB-1075780-A (GB)
Title: Apparatus for continuously casting foam plastics sheets
IPC: D06N3/00
Filed: 1965-07-21
Abstract: 1,075,780. Sheet casting apparatus. SPECIALTY CONVERTERS Inc. July 21, 1965 [July 30, 1964], No. 31046/65. Heading B5A. Apparatus for continuously casting foam plastics sheets, comprises means for dispensing a foaming mixture, e.g. a polyisocyanate and a hydroxyl-containing compound, on to a moving casting surface in an amount determined by a metering nip and is characterized in that the moving casting surface comprises a woven belt having a release coating of plastics material mechanical bonded thereto to form the casting surface. The release coating may be polytetrafluoroethylene or a polysiloxane. In one example a coating of neoprene rubber is mechanically bonded to the woven belt and a release coating, e.g. of silicone oil or wax is applied to the surface of the neoprene. The belt may be of wire, fibreglass or wool.
Patent GB-1120100-A (GB)
Title: Windscreen wiper arms
IPC: B60S1/52
Filed: 1967-07-06
Abstract: 1,120,100. Windscreen wipers. GENERAL MOTORS CORP. 6 July, 1967 [1 Aug., 1966], No. 31103/67. Heading A4F. A windscreen wiper arm 14 comprises pivotally connected inner and outer portions 12 and 20 respectively in which a flexible tube 24 is located, the tube acting as a spring to bias the outer arm portion about its pivot 22. Interengaging splines secure the inner arm portion 12 to the drive shaft 10 of a wiper motor. Flexible tubes 26, 28 are connected to the ends of the tube 24, the tube 26 being connectable to a reservoir of wash liquid and the tube 28 feeding a discharge orifice 30. The tube 24 may be formed of stainless steel, synthetic resin-impregnated glass fibres &c.
Patent GB-1135224-A (GB)
Title: Lubricating compositions containing anti-wear additives
Inventor: ALLUM KEITH GEORGE
Filed: 1965-07-22
Abstract: 1,135,224. -Lubricant. BRITISH PETROLEUM CO. Ltd. 27 June, 1966 [22 July, 1965], No. 31248/65. Heading C5F. A lubricant comprises a base oil having dissolved therein 0À1-10 millimoles per 100 g. oil of one or more diester disulphides of general formula ROOCR<SP>1</SP>-S-S-R<SP>1</SP>COOR where each R is a C 1 -C 3  alkyl group and each R<SP>1</SP> is a C 2  or C 3  saturated polymethylene group. The base oil may be mineral or synthetic, e.g. esters such as di-isooctyl sebacate, polyglycol ethers, polyphenyl ethers, silicate esters and silicones. Disulphides specified are 2,2<SP>1</SP>-dicarboethoxy diethyl disulphide and 3,3<SP>1</SP>-dicarboethoxy di-n-propyl disulphide.
Patent GB-1395352-A (GB)
Title: Two diameter pumps for delivering liquid at high pressure
IPC: F04B9/127
Filed: 1972-07-05
Abstract: 1395352 Reciprocating pumps GREASE APPLIANCE CO Ltd 22 June 1973 [5 July 1972] 31342/72 Heading F1A [Also in Division F2] A pump comprises a cylinder housing 1 formed as an injection moulding of nylon, stepped bores 2, 3 respective pistons 7, 9 located in the bores and inter-connected by a rod 8 moulded integrally with the piston 7, a return spring 10, acting on the piston 9, a liquid supply intake 5 closed by a ball-valve 6 and a liquid delivery outlet 6a. The end of the bore 2 is closed by a screw cap 1a which has an inlet 11 through which compressed air is admitted to move the pistons 9 and 7 against the spring 10 whereby liquid is drawn into the bore 3 via inlet 5 and discharged therefrom via outlet 6a. Alternatively the pistons may be reciprocated by allowing compressed air into the cylinder on either side of the piston 9.
Patent GB-658630-A (GB)
Title: Improvements in or relating to laminated springs
IPC: F16F1/26
Filed: 1949-12-30
Abstract: 658,630. Clips for laminated springs. CARY, Ltd., W. E., and DIXON, R. Dec. 3, 1948, No. 31343. [Class 108 (iii)]  A clip for a laminated spring comprises a strip of flat metal a which is shaped to have complementary interlocking ends a<SP>1</SP>, a<SP>2</SP> which when the strip is bent closely around the spring, interlock to resist tensional stresses tending to force the ends of the clip apart, the clip being secured to one outer lamination of the spring by means of a rivet b or the like and the interlocking parts lying wholly on the other outer lamination. The interlocking ends may be made to follow a slightly concave contour of the adjacent lamination.
Patent GB-227122-A (GB)
Title: Improvements in process for obtaining certain remedial principles of oils
IPC: A61K31/59
Filed: 1923-12-03
Abstract: The antirachitic principle of oils is extracted by saponifying the oil with alcoholic caustic alkali, e.g. caustic soda, dissolving the soaps in water and precipitating an insoluble soap by addition of a salt of an alkaline earth metal such as calcium chloride; the precipitate is then extracted with alcohol, acetone, &c., the extract concentrated to crystallize out the cholesterol, and the mother-liquor evaporated to dryness to obtain the active principle. The invention relates particularly to the treatment of cod-liver oil, but is applicable also to the extraction of the antirachitic principle from other fish-liver oils as well as fish oils and other oils.
Patent GB-208556-A (GB)
Title: Improvements in and relating to linear-dimension measuring devices
IPC: G01B5/14
Filed: 1923-12-14
Abstract: 208,556. British Thomson-Houston Co., Ltd., (Assignees of Wirt, H. L.). Dec. 18, 1922, [Convention date]. Indicating position of internal parts. - A measuring device for determining the distance between a fixed part and an adjacent part liable to movement relatively to the fixed part in ordinarily inaccessible places in the interior of machines comprises a measuring wire the end of which is adapted to be brought into engagement with the surface of the moving part and then with an abutment on the fixed part, and mechanical means for measuring the distance the wire is moved in moving its end from one part to the other. The Figures show the application for measuring the clearance under running conditions between the rotor 5 and the stator 6 of an elastic-fluid turbine. The measuring wire 15, the end of which is caused to engage successively the rotor 5, and an abutment 10 on the stator, is guided by a tube 16 which is supported on the stator by a brace 18. The tube passes out of the casing through a stuffing-box 19 and is fastened to one arm of a frame 17. The wire 15 passes out of the tube through a stuffing-box 20 and passes into and through a tube 21 secured to the other arm of the frame 17. Screws 24 fix the tube 21 in a micrometer head 23 which is screw-threaded to take a micrometer sleeve 27. Scales 26, 28 are provided on the head and sleeve respectively. Slits 31, 32 are formed in the tube 21 so that the wire 15 may be clamped in the tube by one of the screws 33, 34, 35. whichever is most convenient. A slot 36 in the sleeve 27 permits access to the screws 33, 34. A stop or knob 29 is fastened on the end of the wire. In operation, the clamping screw 33, 34 or 35 is loosened, and the wire is pushed through the tube until its end touches the rotor 5. Contact can be heard on the outside by listening with the ear against the knob 29. The wire is then clamped in the tube 21 by one of the screws, and the micrometer sleeve is screwed back until it contacts with the knob 29, and the micrometer is read. The clamp is then released, and the wire is manipulated until its bent end engages the abutment 10, when the wire is again clamped. the micrometer sleeve screwed back against the knob, and a micrometer reading taken. The difference between the readings gives the distance between the rotor and the abutment 10.
Patent GB-1187394-A (GB)
Title: Improvements relating to Pressure Switches
Inventor: RILEY TERENCE ALEXANDER
IPC: H01H35/34
Filed: 1966-07-13
Abstract: 1,187,394. Fluid actuation of switches. SIMPLIFIX COUPLINGS. 10 July, 1967 [13 July, 1966], No. 31537/66. Heading H1N. A pressure switch includes a diaphragm 3, a piston 7 and a coil spring 9 coaxially mounted so that operation of a microswitch 12 occurs at a pressure determined by adjustment of the spring 9, by relative movement of casing parts 10 and 2, casing part 10 being screw-threaded at 11 on to casing part 2. Microswitch 12 is mounted on a support 13 screw-threaded at 14 to the casing part 10. Epoxy resin filling or plastics inserts or grub screws (not shown), lock the screw threads to secure parts 2, 10, 13 in the desired adjusted positions. A cover 15, Fig. 2 (not shown), encloses the end of the support bearing the microswitch 12. A shoulder 8 limits downward movement of piston 7, while upward movement of the piston under its spring loading is limited by the lesser diameter of the cavity 1c in the head la or by abutment against a spacer ring 5, Fig. 2 (not shown).
Patent GB-871338-A (GB)
Title: Catalytic polymerization of olefines
IPC: C08F10/00
Filed: 1957-10-09
Abstract: Alpha-mono-olefins containing at least three carbon atoms are polymerized by heating in the presence of an activated catalytic mixture of lithium metal and titanium polyhalide in a mole ratio of from 0,1-1 to 10-1, the catalytic mixture being activated by heating to at least 150 DEG C. in the absence of an organic halide. Specified olefins are propylene, butene-1, pentene-1, 3-methylbutene-1, 4-methylpentene-1, 4-methylhexene-1, 5-methylhexene-1, and 4, 4-dimethylpentene-1, while titanium tetrahalide is the preferred polyhalide.  The lithium metal is in the form of a high surface dispersion on an inert support, e.g. on gamma-alumina.  The catalytic mixture may be activated at between 150 DEG  and 250 DEG C. either before or during the polymerization reaction, which may be carried out at 110 DEG C. to 250 DEG C., preferably in an inert liquid hydrocarbon vehicle, or in a halogenated hydrocarbon.  Specification 871,337 is referred to.
Patent GB-153867-A (GB)
Title: Improvements in and relating to roller bearings
IPC: F16C33/54
Filed: 1920-11-08
Abstract: 153,867. Bock Bearing Co., (Assignees of Flaherty, J. F.). Nov. 13, 1919, [Convention date]. Roller bearings.-An inner race 26 has a groove 30 in which run enlarged heads 29 of conical rollers 25. A cage for spacing the rollers and maintaining them in assembled positions on the inner race 26 is provided with end flanges 22, 23 and roller openings 24, and is formed from a circular blank or a conical tube. When the cage and rollers have been assembled on the inner race, the parts 27 between the openings 24 are crimped and pressed inwardly to confine the rollers closely, forming a longitudinal channel 25 in each of the parts 27.
Patent GB-263140-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M7/14
Filed: 1926-12-13
Abstract: 263,140. Haefeli, A. Dec. 19, 1925, [Convention date]. Spray carburettors.-Fuel from a float chamber is supplied through a horizontal trough-shaped reservoir f to a longitudinal slot d<1> extending the whole length of the fuel nozzle d and opening into an air inlet chamber e of rectangular crosssection, the passage through the carburettor being controlled by a slide b operated by a pin c which slides over the fuel slot. The slide b may control also secondary air inlet slots in the upper part of the casing a. The fuel nozzle may be rotated to direct the fuel slot towards or away from the air current.
Patent GB-1479231-A (GB)
Title: Metallurgical composition embodying hard metal carbides and method of making
IPC: C22C29/08
Filed: 1975-07-29
Abstract: 1479231 Sintered WC, TiC in W-Ni matrix KENNAMETAL Inc 29 July 1975 31686/75 Heading C7A and D A sintered cemented carbide product comprising tungsten carbide, titanium carbide and a binding alloy comprising tungsten-nickel in which the tungsten constitutes 2 to 28 wt. per cent of the binder alloy. The product may additionally comprise chromium and may be prepared by milling together WC, Ni, Cr and Ti, e.g. in the form of Ni-Ti alloy or Ti hydride, for 4 to 15 days, vacuum sintering for “ to 2 hours at 1350 to 1550‹C and 0À02 to 0À75 torr, whereupon the titanium reacts with a portion of the tungsten carbide to produce titanium carbide and the tungsten-nickel alloy matrix. The sintered product may be magnetic or non-magnetic and may be used in the manufacture of wear resistant guides for magnetic tapes and cutting tools in glass making.
Patent GB-747750-A (GB)
Title: Method of forming hollow wooden articles
IPC: B27M1/02
Filed: 1953-11-16
Abstract: 747,750. Compressing and shaping wood. LUNDSTROM LABORATORIES, Inc. Nov. 16, 1953 [Dec. 19, 1952], No. 31688/53. Class 145 A wooden article having a cavity 16 or 32 is formed from an oversize blank 15 or 31 of green wood or of dried wood that has been exposed to hot vapour, such as steam, by compressing the blank between the heated platens 18, 19 or 35, 37 of a press while a rigid core 17 or 33 of aluminium or other heat-conducting material is inserted in the already-formed cavity to support it against change in dimension, and then cooling the article while it is subjected to compression. The heating or cooling may be effected by passing steam or cold water respectively through passages in the platens and the supporting core may also be heated. In making a loom shuttle from a blank 15, spacers 21 determine the final thickness of the shuttle and ensure that the walls above and below the cavity are of equal thickness. The solid ends of the blanks; particularly their central portions, are less hard than the cavity walls since, owing to their greater thickness, they are not heated sufficiently to soften them completely and, during subsequent machining to point the ends of the shuttle, there is less tendency for change of shape owing to the release of interior stresses caused by the compression. In making the cocking piece of a rifle, the blank 31 is compressed in a mould 34 by a bridge-piece 36 fitting over the supporting core 33, the dimensions of the blank being preferably chosen so that the wood is equally compacted throughout the entire article.
Patent GB-422506-A (GB)
Title: Improvements in brakes for vehicles
IPC: F16D65/22
Filed: 1933-11-14
Abstract: 422,506. Brakes. SOC. DES FREINS HYDRAULIQUES S. DE LAVAUD, 4, Rue de Teheran, Paris. Nov. 14, 1933, No. 31735. Convention date, Nov. 17, 1932. [Class 103 (i)] In an internal-expanding brake wherein the shoes or equivalent can be expanded both by hydraulic and by mechanical means, the hydraulic piston and the mechanical means act upon the periphery and the central part respectively of a common thrust member. The brake shown is of the kind comprising a pair of floating shoes articulated together and adapted to anchor at one end or the other according to the direction of rotation of the drum. The operating means are shown in section on a plane parallel to the drum axis. The ends of the pair of shoes abut respectively on plungers 22, 23 slidable in a body 25 secured on the inner side of the usual anchor plate 4. A pair of triangular plates 47 forming a lever are pivoted to the body 25 at 46, are connected by link 51 to the plunger 22 and have pivoted between them at 48 a triangular lever 50 provided with rollers 56 abutting on the member 37 which is screwed into the plunger 23 for purposes of adjustment. Arranged on the outside of the plate 4 is a member 58 fitted with a bushing 60 in which slides a piston 64 upon which rests a rubber diaphragm 62 secured by a cap 61. The piston 64 abuts on the periphery of a cylindrical slidable member 57 engaging the roller 55 of lever 50 and with the base of which engages a cam 74 on a vertical shaft 67. Pressure liquid admitted by the passage 63 applies pressure through member 57, the lever 50, roller 56 and plunger 23 to one end of the shoes and also through the lever 50, pivot 48, lever 47, link 51 and plunger 22 to the other end of the shoes. Depending upon the rotation of the drum, one plunger or the other remains or returns to the position shown and takes the braking torque of the shoes. The member 57 may also be moved independently of the piston 64 by the cam 74 to apply a thrust to the shoes in a similar manner, by turning the shaft 67 which is mounted in bearings in the member 58, the member 57 being slotted at 65 to permit such movement. The parts 25, 58 are secured together and to the plate 4 by bolts 78, 79. Compensating for wear.-The rod 37 which transmits the thrust of lever 50 to the plunger 23 and thus to one end of the brake shoes screws into the plunger and carries the pivot 39 of a pawl 40 which is urged by a spring to engage a fixed toothed ring 29. If the movement of the plunger is excessive the pawl engages the next tooth, during the outward movement and during the return stroke the rod is turned to increase its effective length.
Patent GB-1090868-A (GB)
Title: Diaphragm valves and diaphragms therefor
Inventor: HARRIS DEREK JOHN
IPC: F16K7/12
Filed: 1965-07-26
Abstract: 1,090,868. Valves. SAUNDERS VALVE CO. Ltd. July 6, 1966 [July 26, 1965], No. 31774/65. Heading F2V. In a diaphragm type flow control valve of the kind having a substantially straight-through bore and a seating formed by a conical opening extending from one side of the casing and running tangentially into the bore, the diaphragm, as shown, has a beaded peripheral flange, a conical portion 12 and a hemispherical apex 13. Two diametrically opposed ribs extend radially along the inner face of the conical portion, the ribs being of trapezoidal cross-section and tapering along their length to a maximum height and base width adjacent flat inner surface 14. The ribs, whose sides may be inwardly curved, extend perpendicular to the valve bore, the bolt holes (21) being located so as to permit no other form of assembly. Fabric reinforcement may be included in the diaphragm. A stud 16 has its head 15 embedded in the diaphragm and engaged by the said fabric. The diaphragm is moulded to approximately its " closed " configuration but is adapted to be placed under tension when the valve is closed.