baber/WOPTO huggingface dataset:
Patent GB-396465-A (GB)
Title: Improvements in and relating to electric incandescent filament lamps
IPC: H01K1/24
Filed: 1932-02-17
Abstract: 396,465. Supports for electric incandescent lamp filaments. CHAPMAN, A. E., 125, Stanley Park Road, Carshalton, Surrey. Feb. 17, 1932, No. 4755. [Class 39 (ii).] In tubular electric incandescent lamps of the kind wherein the filament is supported on pig-tail wires secured to a carrier stem consisting of a glass tube mounted on, or glass beads secured to, a supporting- wire, wire or other resilient supporting-legs extending radially from the supporting-wire and glass members mounted thereon are provided to prevent the glass members from coming into contact with the sides of the vessel, irrespectively of the shape of the latter. In one form the resilient supporting-legs consist of pairs of cross wires f, Fig. 1, fused at intervals to the glass tube d through which is passed a supporting-wire e forming also a return conductor, the filament b being supported on pig-tails c fused into the tube d. Shadows are minimized by so arranging the cross wires f that the glass tube d is retained at a small distance from the wall of the vessel a. In a modification, the supporting and spacing members consist of mica members g, Fig. 3, formed with limbs which bear upon the inner wall of the tube, a hole h 'an and intersecting slot i being provided in one limb to enable it to be slipped around the glass tube d. In another modification wherein the pigtails c, Fig. 4, supporting the filament b are fused into glass beads j which are fused on to a supporting- wire e, the resilient cross-wire supports f are fused into glass beads k which are also fused to the wire e. This arrangement may be modified by mounting mica supporting-members upon the wire e and retaining them in position between a pair of adjacent glass beads fused on the wire. The supporting-wire may form both the leading-in and return conductor of the filament and mav have its ends sealed into the vessel either at the mid portion or ends thereof. The invention is applicable to lamps with more than one filament and the mica supports may be reinforced by corrugated mica strips or they may be slotted or perforated to enable them to bend and be drawn through envelope cross sections smaller than their own.
Patent GB-1190725-A (GB)
Title: Cladding Panels and Methods of Manufacture thereof
Inventor: PORTER KENNETH JOHN COLIN
IPC: E04C2/00
Filed: 1969-01-28
Abstract: 1,190,725. Moulding building elements. K. J. C. PORTER. 28 Jan., 1969, No. 4782/69. Heading B5A. [Also in Division E1] A method of manufacturing a cladding panel comprises locating a plurality of stone or like blocks in mutually spaced apart relationship on a sand covered base in a desired pattern, at least partially filling the spaces between the blocks with sand and forming a synthetic resin support layer on the upper surface of the block to impregnate the sand between the blocks to adhere the blocks and at least some of the sand to the support layer. Blocks of stone 15 are laid on sand 14 in a tray mould 11, 12 which also contains spacer elements 13 and layers of resin and fibrous mat are applied to the blocks. When the resin has set the cladding panel is stripped from the mould and attached to a wall, e.g. by nails in the spaces made by the spacer elements 13.
Patent GB-1397661-A (GB)
Title: Centrifuge apparatus
IPC: B04B1/20
Filed: 1973-01-31
Abstract: 1397661 Screw centrifuge PENNWALT CORP 31 Jan 1973 [28 Feb 1972] 4789/73 Heading B2P In a centrifuge for separating a solids-liquid mixture and comprising a rotatable bowl 12 and a solids-discharge metal screw conveyor 18 rotatable relative to the bowl, at least some of the distal surfaces of the screw conveyor flights 26 are provided with wear-resistant surfacing by a helical series of assemblies 32 secured thereto, each assembly including a metal preformed backing tile 40 welded, e.g. as at 44 and 45, to the conveyor flight and a preformed wear-resistant member 42 bonded to the backing tile prior to welding the latter to the conveyor flight. Adjacent assemblies may abut one another along their radial side elges or these edges may form lap or bevelled joints with one another. Different forms of assemblies are described. The wear-resistant members 42 are preferably made of sintered tungsten carbide and the conveyor and backing tiles 40 are preferably made of the same metal, e.g. stainless or alloy steel.  For Figures see next column
Patent GB-489784-A (GB)
Title: Improvements relating to brake operating mechanism for brakes of the internally expanding type
IPC: B60T11/04
Filed: 1937-02-18
Abstract: 489,784. Brakes. PRATT, J. H., MANLEY, G. E., and GIRLING, A. H. G. Feb. 18, 1937, No. 4850. [Class 103 (i)] To prevent automatic shoe clearance adjusting means for internally expanding brakes from coming into operation by heat expansion of the drum a course adjusting means and a relatively large minimum clearance is provided and to prevent the pedal stroke from being excessive due to the large clearance, quick take up mechanism is provided for bringing the shoes rapidly into contact with the drums and subsequently applying the pressure at an increased mechanical advantage. The quick take-up mechanism comprises a lever 7 pivoted to the pedal 6 and having a projection 7e engaging a projection 4a on a two-armed lever 4 freely mounted on the pedal shaft 5. The lever 4 is connected by rods 3 to the brakes. The lever 7 has a semicircular recess 7a followed by cam surfaces 7b, 7c. and a roller 8 carried by a fixed pivot is normally seated in the recess. When the pedal is depressed, the roller rides out of the recess whereby a magnified movement is transmtted by lever 7 to lever 4 to take up the shoe clearance rapidly, the roller then riding on the surface 7b to apply a progressive braking effort. In the event of failure of the automatic adjustment mechanism, the roller rides on the upwardly inclined surface 7c thus ensuring the application of the brakes before the pedal reaches the floor of the vehicle. The automatic adjustment mechanism incorporated in the brake is of known kind. The initial movement of the pedal is assisted by a spring 10.
Patent GB-1330271-A (GB)
Title: Flash apparatus
IPC: G03B15/05
Filed: 1972-02-02
Abstract: 1330271 Electronic flashlight apparatus  FRANKE & HEIDECKE GmbH 2 Feb 1972 [4 Feb 1971] 4959/72 Heading G2A In an electronic flashgun employing a quenching tube 3 to short circuit the main flash tube 1 after sufficient flash duration (determined photo-electrically) a window (5) is provided for observing operation of the quenching tube the window having a phosphorescent coating (7) aclivated by light from the quenching tube and having an "afterglow" so that the window does not need to be observed during the actual flash. If the quenching tube is not ignited the operator knows that the light - output of the flash has not been sufficient. The window may have a U.V. filter layer or may itself be a U.V. filter in order to prevent activation of the coating (7) by external sources. The outside of the window may take the form of lenticular screen (8).
Patent GB-711950-A (GB)
Title: 1-(úÝ-hydroxyphenyl)-2-aralkylaminopropanones
Filed: 1951-05-15
Abstract: The invention comprises compounds of the formula (m) HO - C6H4 - CO - CH(CH3 -NH-R-C6H5, where R is a straight or branched chain alkylene radical of 2-5 carbon atoms.  These are made by reacting R1O-C6H4-CO-CH(CH3)-Hal (R1=benzyl) with an aralkylamine and catalytically debenzylating the product with hydrogen and palladium. They are intermediates for the compounds of the Specification 711,905. Examples show the production of the above compounds where R is -CH2-CH2- and -CH(CH3)-CH2-CH2 and it is stated that R may be -CH2-CH2-CH2 -, - CH(CH3) - CH2 - or - CH2 -CH(CH3)-.
Patent GB-656564-A (GB)
Title: Improvements in or relating to hammer mills
IPC: B02C13/26
Filed: 1948-02-23
Abstract: 656,564. Bearings. FERGUSON, Inc., H. Feb. 23, 1948, No. 5232. Convention date, Feb. 21, 1947. [Class 12 (i)] [Also in Group II] To ensure self-alignment of the bearings 22, 24, supporting the shaft of a hammer mill annular rubber inserts 54 are provided in each bearing assembly between the outer race which is of frusto-conical shape and the inner surface of the casing whilst wear on the bearings is taken up or preloading determined by moving the inner race 34 of the bearing assembly 22 over the outer portion 12b of the shaft 12 so tending to close the gap 56. This movement, controlled by the nut 58 with its outer pin 59, tends to increase the pressure exerted by each inner race against its corresponding outer race and also compresses the rubber inserts 54 between the conical surface of the outer races and shoulders formed in their respective housings 25, 26. After initial adjustment of the nut 58 any small subsequent wear of the bearings is taken up automatically by the expansion of the rubber insertions 54.
Patent GB-292882-A (GB)
Title: Improvements in or relating to hydraulic apparatus
IPC: B30B15/16
Filed: 1928-02-20
Abstract: 292,882. Tonks, G. Feb. 20, 1928, Presses, producing part of stroke of by gravity and by liquid at lower pressure than working liquid. - A valve governing the communication between the hydraulic cylinder 6 and a reservoir 9 for auxiliary liquid, is controlled from the platen 4 by an arm 21, adjustable stops 15, 16 on a rod 14, and a lever 13.
Patent GB-551146-A (GB)
Title: Improvements in rectal and vaginal specula, proctoscopes, sigmoidoscopes and like surgical instruments
IPC: A61B1/303
Filed: 1942-04-20
Abstract: 551,146. Rectal and vaginal specula &c. LIER, L. VAN. April 20, 1942, No. 5257. [Class 81 (ii)] The Figure shows a sigmoidoscope with a tubular part 4 from which extends a solid branch or stub 5. The parts 4 and 5 are formed from light-transmitting material and preferably from methyl methacrylate and are lighted by an electric light bulb within the end cap 6. For the purpose of inserting the instrument into a body cavity, the distal end of the tube is provided with a plug 8. When the tube 4 has reached the required degree of insertion the plug 8 is withdrawn by means of an external handle 9. The instrument may include an adjusting and distending device. Specification 540,806 is referred to.
Patent GB-767024-A (GB)
Title: Improvements in polyoxyalkylene ethers of heterocyclic amides and esters thereof
IPC: C07D493/04
Filed: 1954-02-23
Abstract: The invention comprises (1) compounds of the formula: <FORM:0767024/IV(b)/1> where (C6H8O) is the residue of a mono-anhydro hexitol, Alk is an oxyalkylene radical, R3 is H or carboxylic acyl of 2-25 carbon atoms (same or different), R1 is a hydrocarbon radical, R2 is carboxylic acyl of 2-25 carbon atoms, x is 0-2, y is (3 - x), m = 1-100 and the product my is not more than 100; (2) the corresponding di-anhydro hexitol derivatives of the formula: <FORM:0767024/IV(b)/2> These are made by condensing a secondary anhydro-hexityl amine with 1 or 2 mols. of a carboxylic acid at 170 DEG C. or more and treating the product with 1-100 mols. of an alkylene oxide; further esterification may then be carried out. Alternatively a hexityl amine is used as starting material, the anhydro ring being formed during the reaction.  Probable formulae of the various types of product are given.  Examples are given (1) of the preparation of compounds (R3 = H) from N-methyl-N-(anhydroglucyl)-lauramide and ethylene oxide, N - methyl - N - (anhydroglucyl) - oleylamide, and N - methyl - N - (anhydro - oleyl) - amide and propylene oxide; and (2) of compounds (R3 = acyl) prepared in various ways: (a) N - methyl - glucamine condensed with lauric acid to give N - methyl - N - (anhydro - glucyl)-lauramide monolaurate and the latter treated with ethylene oxide; (b) a partial ester is obtained from oleic acid and a polyoxyethylene ether of N - methyl - N - (anhydroglucyl) - oleic amide; (c) a partial ester is made from lauric acid and a polyoxyethylene ether of N-methyl-N-(anhydroglucyl)-lauric amide.  Other acids that may be used are myristic, palmitic, stearic, linoleic, erucic, behenic, the acids of coconut oil, linseed oil, cottonseed oil, soya oil, fish oil, tall oil and rosin, dodecylphenylacetic, nonylphenoxyacetic and dodecylphenoxyacetic.  The group R1 may in general be alkyl, aryl or aralkyl, e.g. methyl, propyl, butyl, hexyl, lauryl, cetyl, octadecenyl, phenyl or benzyl. Fructose derivatives may be used instead of glucose derivatives. Other suitable alkylene oxides are glycidol, epichlorhydrin, butylene oxide and butadiene monoxide.  The acylated anhydro-hexityl amines themselves are the subject of Specification 745,036.
Patent GB-180402-A (GB)
Title: Improvements in or relating to percussive tools
IPC: B25D11/10
Filed: 1921-02-16
Abstract: 180,402. Borrowdale, W., and Henshall, S. Feb. 16, 1921. Percussive hand tools.-The tool holder 3 is moved against a spring 5 by the action of cam surfaces on the end of a continuously axially rotating member 8, which surfaces co-operate with similar surfaces on the head 4. The member 8 is carried in an adjustable sleeve 9 and is rotated by a flexible shaft or an electromotor. Lubricant enters at 14, and is drained through a passage 17. In another form of the device the member 8 is itself reciprocated against a strong spring to strike blows on the head 4.
Patent GB-433473-A (GB)
Title: Improvements in trucks
IPC: F27D3/12
Filed: 1934-02-19
Abstract: 433,473. Trucks for pottery kilns. MOORE, B. J., Parkfield House, Princes Road, Hartshill, Stoke-on-Trent. Feb. 19, 1934, No. 5361. [Class 51 (ii)] In a truck for conveying pottery - ware through a kiln having, as described in Speci. fication 272,422, [Class 51 (ii)], vertical posts 11 encased in sleeve: 12 which are formec with lugs 15 for sup porting trays or bat: 13 at different levels. the sleeves 12 are constructed entirely of or are coated with non-metallic refractory material such as fire-clay. The posts 11 may be formed of metal or of refractory material reinforced as described in Specification 433,497.
Patent GB-1300524-A (GB)
Title: Improvements in or relating to the measurement of surface potentials
Inventor: CROSSLAND WILLIAM ALDEN
IPC: G01N27/00
Filed: 1971-02-25
Abstract: 1300524 Detecting flaws and measuring surface potential STANDARD TELEPHONES & CABLES Ltd 25 Feb 1971 5405/71 Heading G1N The surface potential of a test surface is measured by ionizing gas between the test surface and a reference electrode using a source of ionizing radiation, and measuring the resulting potential difference appearing between the test surface and the reference electrode. The radiation source may be Am<SP>241</SP>, Ra<SP>226</SP> or Po<SP>210</SP> (all # emitters) and may be positioned beside or behind the reference electrode, Figs. 1a and 1c (not shown) or may be the reference electrode, Fig.1b (not shown). The potential difference may be measured by a calibrated meter or balanced against a calibrated source. Fig.2 shows a probe for detecting pin-hole flaws in a layer of gold on a base metal. A radio-active pellet 20 of Am<SP>241</SP> embedded in gold is secured in a disc 22 behind a central aperture in an annular gold disc 24 acting as an iris. The reference electrode 25 is a thin layer of gold 25. The inner conductor of a coax socket 26 is connected via interior wall 21 to the electrode 25. 28 is a P.T.F.E. sleeve. The probe may be mounted in a jig (not shown) providing electrical screening, the position of the beam of ionizing radiation emerging through the aperture in disc 24 being known in relation to a datum point in the jig. The invention may also be used for testing the cleanliness of surfaces.
Patent GB-223125-A (GB)
Title: Improvements in or relating to atomizers or liquid fuel burners
IPC: F23D11/10
Filed: 1924-03-03
Abstract: 223,125. Thompson, H. A., and Swinney Bros., Ltd. March 3, 1924. Spray burners. - A liquid fuel burner or atomizer of the type in which the oil or other liquid and air or steam issue through adjacent slots or apertures comprises a burner body 1 fitted with oil and air or steam control valves 2, 4 and containing a seating for a conical plug consisting of two members 15, 16 formed with relatively inclined oil and air or steam passages 17, 18. The passage 18 may be formed by a tapered groove flared at its discharge end cut in one of the contiguous faces of the plug members 15, 16 and the oil passage 17 may be formed by an oppositely tapered groove cut in the exterior surface of the member 15, the discharge end of the groove being of greater depth than the inlet end. The plug members are secured in their seating by a bridge or stirrup 10 loosely fixed on a clamping-screw 9 carried by a cover 8 which screws on the body 1 and forms a small air chamber to prevent pulsations at the burner outlet. A dowel pin 25 on the part 15 engages a slot in the burner body and ensures the correct positioning of the plug members. The valves 2, 4 may be formed integrally with or independently of the body 1 and pipe bosses are provided at both sides of the valve 2 to allow connection to the oil pipe on the side most convenient. In a modified form of burner the plug members are secured by the pressure of an internal apertured cylindrical extension on the cover 8 and the cover 8 is screwed up by means of a tommy-bar. The plug members are interchangeable with others having larger or smaller passages. The burner body is formed with lugs 27 by which it is secured to a plate 19 which carries a flame-tube 20. Secondary air for combustion enters through openings 22 which may be fitted with a movable damper. Alternatively air inlets are provided in the plate 19 towards its outer circumference and the air is preliminarily heated in its passage behind a baffle plate to ports in the flame-tube.
Patent GB-1456896-A (GB)
Title: Dithiophosphate esters having pesticidal properties
IPC: A01P7/04
Filed: 1974-02-06
Abstract: 1456896 Dithiophosphate esters C1BAGEIGY AG 6 Feb 1974 [7 Feb 1973 20 Dec 1973] 05450/74 Heading C2P The invention comprises dithiophosphate esters of the general formula wherein R 1  is C 1 -C 5  alkyl, R 2  is C 1 -C 5  alkyl or propargyl and n is zero or an integer of from 1 to 4. They may be obtained by reacting a compound with a salt wherein Hal is halogen and Me is an alkali metal atom. The products have pesticidal properties and may be used as active ingredients in conventional pesticidal formulations.
Patent GB-431843-A (GB)
Title: Machine for covering explosive cartridges in their cases with extinguishing material
IPC: F42B33/14
Filed: 1935-02-20
Abstract: 431,843. Loading blasting-cartridges. SOC. ANON. D'ARENDONCK, Arendonck, Belgium. Feb. 20, 1935, No. 5457. Convention date, March 14, 1934. [Class 9 (i)] A machine for sheathing explosive charges with flame-extinguishing materials in their cartridge cases comprises means for centring the charge in its cartridge case and distributing the extinguishing material to the annular space between the charge and the case, and shaking means to cause the material to settle uniformly. As shown, the charge 28 is held in grippers 27 beneath a funnel 26, and the cartridge case 31 is slipped over the grippers. The flame extinguishing material is placed in the funnel which guides it down between the grippers to the annular space in the cartridge case. The funnel support is then lowered over a conical cup 33, which is shaken to cause the uniform packing of the material. Several funnels are attched in a row to a hinged member 1, which is swung up about its pivot 30 to receive the charge and case and is then swung down again on a frame 8. A corresponding row of cups 33 is mounted on a plate 18 which is vibrated by eccentrics 20, after the frame 8 has been lowered by cams 11. These devices are carried by two side standards 2 connected by horizontal stays 3.
Patent GB-1452697-A (GB)
Title: Method of forming high-temperature abrasion-resistant coating on a ferrous metal substrate and resulting article
IPC: C23C26/00
Filed: 1974-02-06
Abstract: 1452697 Hard facing layers by exothermic reaction USS ENGS & CONSULTANTS Inc 6 Feb 1974 [15 Feb 1973] 05505/74 Heading C7F  A hard facing layer is formed by igniting on the substrate an exothermic reaction powder mixture comprising an exothermic fuel, a reducible metal oxide and a boron component which or the boron of which forms a boron compound with the reduced metal. The exothermic mixture preferably contains 65-85 parts wt. Fe 2 O 3  or Fe 3 O 4  minus 35 mesh, 15-35 parts wt. Al minus 20 plus 325 mesh and sufficient ferraboron to provide 2-8% boron. The preferred hard facing composition contains 20-90% volume Fe 2 B and is at least 0À1" thick. The boron source may be B 2 O 3  or FeB or Fe 2 B; the fuel may be Al, Mg, Ca, Si, CaSi or mixtures of these and Cr 2 O 4  may be added to the iron oxide to form a stainless steel matrix. The substrates may be Fe, Cu, Sn, Ni, Cr, Co, Mo, steels, brasses or bronzes and is preferably pre-heated to 1400-2000‹F prior to igniting the powder charge.
Patent GB-1041453-A (GB)
Title: Improvements in and relating to crystalline synthetic faujasites
Inventor: ROBSON HARRY EDWIN
IPC: C01B39/20
Filed: 1964-02-10
Abstract: Crystalline synthetic faujasite having the following molar ratios of constituents in its dehydrated form 1.0\sB0.2Na2O : Al2O3 : nSiO2 wherein n is from 4 to less than 8, is prepared by forming an aqueous reaction mixture containing Na2O, SiO2 and Al2O3, the molar ratios of the constituents being within one of the following ranges <TABS:1041453/C1/1> heating the reaction mixture from 80 DEG  to 120 DEG  C. and maintaining this temperature for 5 to 50 hours and then recovering the crystallized product.  The temperature of the reaction mixture may be maintained above its freezing point but below 38 DEG C. until all the reactants have been combined to completethe formation of the reaction mixture which is subsequently heated to 80 DEG  to 120 DEG  C. The constituents may be supplied by NaOH, colloidal SiO2 sol, preferably containing 30-50 weight per cent of SiO2 and sodium aluminate especially in the form of sodium aluminate liquor prepared by the addition of alumina trihydrate to hot concentrated NaOH solution.  The reaction mixture may be combined with an inert diluent liquid having heat exchange properties, a flash point above 120 DEG  C. and being immiscible with water, reaction mixture and zeolites, e.g. hydrocarbon oil, before the reaction mixture is heated and subsequently heating the suspension of reaction mixture in inert diluent with agitation, agitation being discontinued just before the elevated temperature is reached.