baber/WOPTO huggingface dataset:
Patent GB-1128105-A (GB)
Title: Low molecular weight mastics
IPC: C08F8/20
Filed: 1966-06-06
Abstract: 1,128,105. Halogen-containing copolymers. ESSO RESEARCH & ENG. CO. 6 June, 1966 [9 June, 1965; 3 Dec., 1965], No. 25141/66. Heading C3P. Low molecular weight halogenated copolymers comprise halogenated copolymers of 70 to 99À5 mole per cent of at least one alpha olefin having 2 to 7 carbon atoms and 30 to 0À5 mole per cent of at least one diolefin having 4 to 14 carbon atoms, said copolymers having a number average molecular weight of 2000 to 15,000, the product of the mole per cent halogen in said copolymers and the number average molecular weight of said copolymers falling within the limits 200 #m and 3800 #m where #m is the summation of the values of the products of the molecular weight of each of the monomers present in the polymers and its mole fraction in the polymer. The polymers may be derived from ethylene, propylene, isobutylene, heptene- 1 and butadiene, isoprene, piperylene, dimethyl butadiene, cyclopentadiene, methylcyclopentadiene, 5-methylene norbornene, myrcene, dicyclopentadiene, allo-ocimene, 1,4-hexadiene, 3,7 - dimethyl - octa - 1,7 - diene and dihydromyrcene. The copolymers may be chlorinated or brominated in the solid state or in organic solvent solutions. The products may be compounded with stabilizers, e.g. epoxides, amines, organotin compounds and metal salts; and may be crosslinked by polyamines, polyfunctional phenols, quinones, polymercaptans, dialkyltin compounds, thioureas and metal halides. In examples isobutylene/isoprene copolymers are (1 and 2) chlorinated and (3) brominated and cured with a variety of curing agents including ethylene trithiocarbonate, dibutyl tin sulphide and 1,3-di-n-butyl-2- thiourea.
Patent GB-299163-A (GB)
Title: Improvements in the manufacture and production of electrodes, welding rods and the like for use in welding and depositing metal
IPC: B23K35/02
Filed: 1927-09-24
Abstract: 299,163. Turner, B., and Ferro-Arc Welding Co., Ltd. Sept. 24, 1927. Uniting by fusion. - A twinelectrode for welding and depositing metal by the electric arc process in which one phase of a three-phase alternating current is connected to the work and the other two to the electrode, is formed by first coating one or both of the individual core wires 1, 2 with a film 3 of an adhesive solution of a highly electricallyinsulating nature such as silicate of soda, particularly in the form known as adhesive silicate, or a solution of shellac in methylated spirit, and then applying round the composite core a coating 4 of flux or slagforming material. Specifications 235,128, 285,129, and 295,514 are referred to.
Patent GB-1111274-A (GB)
Title: Improvements in or relating to fluid-tight insulated walls and applications thereof
IPC: F17C3/02
Filed: 1965-06-15
Abstract: 1,111,274. Heat insulating linings. TECHNIGAZ. 15 June, 1965 [27 June, 1964], No. 25253/65. Heading B7S. [Also in Divisions B5 and F4] The wall of a liquefied gas, e.g. methane, storage tank comprises an inner primary liquid-contacting flexible metal sheet 14, Fig. 1, backed by an outer secondary flexible metal sheet 5 and the two superposed sheets are secured at a plurality of spaced points to an outer layer of load bearing and transmitting heat insulation material which in turn is secured to an outer rigid structure 4, e.g. the hull of a ship or the body of a road vehicle. The insulation layer 1 comprises foam plastic 2 sandwiched between inner and outer plywood layers 3. The primary barrier 16 comprises a plurality of juxtaposed sheets having either welded butt joints or welded overlap joints 15 as shown and the secondary barrier which may be similarly formed has spaced integral metal anchor blocks embedded in the insulation layer and into each of which is secured a bolt 16 passing through a hole 17 in the overlapped portion 14a of a sheet 14 and covered by an overlapping portion 14b of the adjacent sheet. Fig. 2 shows an anchor block 6 located away from an overlap joint; the bolt-head being covered by a welded cap 19. In a modification the primary and secondary barrier sheets 14, 5, Fig. 6, are corrugated at 31, 31<SP>1</SP> and are spaced from the inner plywood layer 3 by wood supports 32.
Patent GB-713770-A (GB)
Title: Improvements in or relating to devices for grasping loads for lifting or lowering
IPC: B65B21/18
Filed: 1951-10-05
Abstract: 713,770. Gripping devices for handling bottles &c.: manifold arrangements. CROWN CORK CO., Ltd., and WALMSLEY. A. L. Oct. 3, 1952 [Oct 5, 1951], No. 23276/51. Class 78 (4) A hollow gripper 19 mounted on the lower plate 11 of a pair of plates 10. 11 spaced to form a chamber 15 is inflated to grip, e.g. the inside of the neck of a bottle, when compressed air is admitted to the chamber 15 through a manually operated valve 26 on the upper plate 10. As illustrated a number of grippers are arranged in holes in the lower plate to engage a set of bottles in a crate. Heads 21 in the grippers are formed with castellations by which they communicate with the chamber 15. The plates 10, 11 are secured together by bolts 23 and spacing washers 17 and the chamber 15 is sealed by a peripheral member 18. The valve 26 is a slide valve which is operated to inflate the grippers when an operator holding a pair of handles 24 depresses a button 34 against springs. Alternatively the valve .may be controlled by a finger lever which remains in whichever position it is moved to or rotation of the handle 24 may cause a cam rigid with the handle to depress the head 34. The plates 10. 11 may be of aluminium, laminated plastics or laminated resin-impregnated compressed wood. Dowels 13 adjustable in slots 14 in lugs 12 on the upper plate 10 serve to locate the manifold over a crate of bottles. An eye (not shown), is provided on the upper plate 10 for engagement by hodsting gear or by a spring which assists manual lifting.
Patent GB-743250-A (GB)
Title: Improvements in or relating to guards
IPC: B27G21/00
Filed: 1952-10-09
Abstract: 743,250. Machinery guards. BRITON BRUSH CO., Ltd., and MARWOOD, G. H. Oct. 9, 1953 [Oct. 9, 1952], No. 25313/52. Class 80(4) A cup-shaped guard 17 for the cutter 15 of a spindle moulder is carried by a parallel linkage 20, 21, so as to be gravitybiased into guarding position, and is automatically raised on approach of a workpiece by the armature 23 of an electromagnet which is energized on depression of a push-button 25 arranged in the path of the cramp holding the workpiece. The cutter spindle has a collar 16 for co-operation with a steel template on the cramp. In a modification the electromagnet is controlled by a photo-electric cell so that on interruption of a light beam the guard is raised. In a further modification the electromagnet is located above the work table. Where a machine has two oppositely-rotating spindles there may be a single guard for both spindles or separate guards operated by individual buttons and electromagnets. The guard means is applicable to other machines having a continuously-running tool.
Patent GB-1211190-A (GB)
Title: Steel embossing die and methods of making the same
Inventor: KOUGEL JACK IRVIN
IPC: B21D37/20
Filed: 1969-05-19
Abstract: 1,211,190. Making steel dies; electrical discharge machining. G.T.I. CORP. 19 May, 1969 [7 June, 1968], No. 25407/69. Headings B3A and B3V.  In a method of making a steel embossing die a steel blank is formed to the desired shape and size and then hardened to the required hardness. A first impression is cut in the blank by electrical discharge machining using a first graphite electrode having a configuration opposite to that desired in the blank. The first impression has embossing ribs slightly higher and broader than those in the finished die and the machining is performed at a high power rate. A second impression, superimposed on the first, is cut by a second electrode having a configuration opposite to that of the finished die avoiding heavy amperage. Machining is begun at low power, which is increased intermediate the cut and then reduced to finish the cut. The second electrode may be the first remachined. The cutting edge of the steel die will have a small radius, which is removed by a third electrode, similar to the second and used with the finest finishing cut possible on the apparatus. Cutting should be stopped as soon as the radius is removed the third electrode may simply be the second remachined.
Patent GB-751927-A (GB)
Title: Improvements in or relating to a wheel-type earth-excavating machine
Inventor: KOLBE FRANK FREDERICK
IPC: E02F3/24
Filed: 1954-09-01
Abstract: 751,927. Earth-excavating apparatus. UNITED ELECTRIC COAL COS. Sept. 1, 1954, No. 25425/54. Class 68(1) [Also in Group XXX] In an earth-excavating machine having a digging bucket carrying wheel 11 rotatably mounted at the end of a boom, there is vertically disposed beneath the uppermost bucket and secured to the boom an inclined sheet 28 for directing material falling from the bucket outwardly of the wheel on to a conveyer 19 disposed alongside the wheel, and at least one rotatable scraper blade 38 is provided to scrape adhering material from the top surface of the sheet. The shaft 39 of each blade passes downwards through the sheet and is connected to a motor 42 disposed in the space between the sheet and the framework of the wheel.
Patent GB-487845-A (GB)
Title: Improvements in or relating to torches, flashlights or the like
IPC: F21V5/00
Filed: 1936-09-18
Abstract: 487,845. Electric-battery lamps. EVER READY CO. (GREAT BRITAIN), Ltd. Sept. 18, 1936, No. 25483. Void. Convention date, Sept. 18, 1935. [Class 39 (ii)] An electric torch or flashlight casing comprises a head member A, Fig. 6, a bottom closure member B, and an intermediate tubular body C, and connecting means so arranged that either or both end members are permanently connected to the body but are independently separable therefrom over a limited distance for the purpose of renewing the bulb F or battery D. Preferably the connecting-means consists of links 10, 46 slidable lengthwise of the body C. In the example, pairs of independent links 10, 46 rigidly secured to the head A and bottom closure B respectively are completely concealed when the parts are in normal or abutting relation, the casing being provided with interior longitudinal grooves to receive the links. The bottom member B is provided with a helical spring 90 which normally holds the middle terminal of the battery in contact with the lamp bulb, the parts B and C then being latched together by a rotary latching- device at the end of the member B. The head A may be constructed so that it can be deformed by external pressure to detach the cover glass H and reflector G. The bulb F is provided with a screen 24b of the form described in Specification 477,851, and the switch is of the form described in Specification 483,064, [Group XXXVII].
Patent GB-655403-A (GB)
Title: Apparatus for drying materials in the form of granules, threads, or fibres
IPC: F26B23/00
Filed: 1947-09-18
Abstract: 655,403. Drying-apparatus. WAGHORN, H. W. (Aktiebolaget Pluria). Sept. 18, 1947, No. 25490. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 29, 1948.] [Class 34(ii)] Apparatus for drying granules, threads or fibres with steam comprises a closed circulating system including a container for the material, a circulating pump for the steam and a separator for removing the liquid carried along by the drying medium, the steam being heated by the heat developed by the work of the circulating pump during the circulation of the steam through the system. As shown, a container 1, which has supports therein for the material, is connected with a conduit 3, a separator 4 having a liquid discharge 5, a circulating pump 6 and a conduit 7 from which issues a conduit 8 having a valve 9 for the discharge of surplus steam from the system. Air may be forced out of the apparatus by supplying steam, nitrogen or other medium through a conduit 10 with valve 11 connected with the conduit 3. The supports, within the container, may be a double-walled cylinder 12 or hollow tubes for bobbins and are perforated and so arranged that the steam passes through the material from the outside inwardly. The drying steam is pumped continuously around the circuit, liquid water being removed by the separator and excess steam through the conduit 8 until drying is complete which is indicated by a rise in temperature of the steam.
Patent GB-1047804-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/12
Filed: 1964-06-19
Abstract: 1,047,804. Suction cleaners. SIEMENS ELECTROGERATE A.G. June 19, 1964 [June 19, 1963], No. 25581/64. Heading A4F. [Also in Division B1] In a suction cleaner a tubular dust bag 13 is disposed in an annular duct 11 surrounding the fan motor 4. To ensure a substantially uniform pressure difference across the wall of the dust bag 13 throughout its length the ratio of the cross-section of the bag 13 to that of the duct 11 decreases from the open end to the closed end of the bag. Alternatively the inner portion of the duct 11 is perforated, the size or number of perforations increasing in the direction of the air flow along the duct. The dust bag 113 may be of paper and carried in a wide cage 17 of wire or synthetic plastics material. An annular cloth filter 15 surrounds the fan motor 4 and is sealed by a coil spring 16 against the cover 7 and bottom 1 of the cleaner housing.
Patent GB-872197-A (GB)
Title: Process for improving polyolefines
IPC: C08K3/30
Filed: 1958-08-08
Abstract: High molecular weight homo- and copolymers of olefines are stabilized by incorporating therein a mixture of (a) a compound of a bivalent to hexavalent metal and an element of Group VI(b) of the Mendeleeff Periodic Table i.e. sulphur, selenium, and tellurium and (b) an organic stabilizer containing at least one aromatic nucleus which is known to be suitable for stabilizing olefine polymers.  The olefine polymer may be polyethylene, polypropylene, or a copolymer of ethylene and propylene. Compound (a) may be zinc sulphide, antimony trisulphide, cadmium sulphide, molybdenum sulphide, cadmium selenide, cadmium sulphide selenide (CdS.CdSe), or tin sulphide (SnS2). Compound (b) may be di-beta-naphthyl-paraphenylene diamine, di-tert.-butyl-para-cresol, di-beta-naphthol, hydrogenated isobornylated o-cresol, mercaptobenzimidazole, N-stearoyl-para-aminophenol, or 4 : 41-thio-bis-[(6-tert.-butyl)-meta-cresol].
Patent GB-636182-A (GB)
Title: Improvements in apparatus for stereoscopic cinematography or photography
IPC: G03B35/10
Filed: 1946-08-27
Abstract: 636,182. Stereoscopic apparatus. RELIEF LYON FRANCE. Aug. 27, 1946, No. 25641. Convention date, Nov. 23, 1944. [Classes 97 (i) and 98 (ii)] An apparatus for taking stereoscopic pictures comprises a photographic or kinematographic camera having a single lens 7, Fig. 7, in front of which is disposed a convergent cylindrical lens 12 and two reflecting systems 8-9 and 10-11 arranged to form on a film 16 two juxtaposed stereoscopic images 5, 6. Each reflecting system is associated with a divergent cylindrical lens 13, these lenses and the lens 12 having their geometrical axes horizontal and forming each image of such a shape that it occupies half of the space which would be taken up by an ordinary picture. The stereoscopic pictures may be projected on to a screen and observed by means of a device comprising two casings 14, Fig. 11, held together by a ball-joint 17 and each being thereby rotatable about two orthogonal axes. Each casing carries a convergent cylindrical lens 15 so that the deformed images on the screen appear to be of their correct dimensions. Each casing also includes a diaphragm 25 disposed so that each eye of an observer using the device only sees the picture corresponding to that eye.
Patent GB-389480-A (GB)
Title: Improvements in and relating to the production of soft rubber and soft rubber goods
IPC: C08K5/521
Filed: 1931-09-14
Abstract: Organic phosphorus compounds, such as lecithins from animal or vegetable sources, and particularly phosphatides obtained from soya beans, or bye-products from soya oil manufacture, or their decomposition products, are added to rubber mixes to improve their emulsifying properties.  The amount added is of the order of 0,4 per cent and upwards.ALSO:Organic phosphorus compounds, such as lecithins from animal or vegetable sources, and particularly phosphatides obtained from soya beans, or bye-products from soya oil manufacture or their decomposition products, are added to rubber mixes as softeners and vulcanization accelerators, and to improve their emulsifying properties: The amount added is of the order of 1,4 per cent and upwards.
Patent GB-835391-A (GB)
Title: Masticating agents for rubber
IPC: C08K5/00
Filed: 1958-08-11
Abstract: Natural rubber, e.g. smoked sheet, and synthetic rubber, e.g butyl rubber, is masticated with the aid of a metal compound having a 16-membered macrocyclic ring system in which 8 carbon atoms and 8 nitrogen atoms are arranged alternately and in which each second nitrogen atom forms a heterocyclic ring with the two adjacent carbon atoms by way of two or three additional carbon or heterocyclic atoms, whereby at least one of the heterocyclic rings is substituted by an alkyl radical and/or contains besides the said nitrogen atom at least one hetero atom.  The compounds are exemplified by iron, cobalt, nickel, chromium, manganese, zinc, aluminium, vanadium and magnesium containing tetra-azoporphins and hemiporphyrazines.  The compound may be used in conjunction with another masticating agent, e.g. pentachlorophenol or zinc pentachlorophenol.  Suitable fillers for the masticated rubber are kaolin, bleaching earth, siliceous chalk, fine silica and silicates.
Patent GB-1147674-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01C10/36
Filed: 1966-06-09
Abstract: 1,147,674. Snap-action switches; variable resistors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 9 June, 1966 [12 June, 1965], No. 25753/66 Headings H1N and H1S. A combined miniature switch, especially shallow in the axial dimension, and variable resistor (not shown) are housed within a common cup-shaped control knob 17. The switch may be mounted on the rear side of the supporting plate of the resistor or on an insulating plate 1 closely parallel thereto. A moving contact member 3 stamped from resilient sheet metal is pivoted at 5 on the plate 1 and has integral lugs 7 and 9 respectively engageable by a projection 13 inside knob 17 to move limbs 19 out of and into engagement with a fixed contact pin 25. Projections 21 on limbs 19 cooperate with a pin 23 to hold the member 3 in the " ON " position, and also serve to provide a snap-action producing audible clicks as lugs 7 and 9 respectively strike the projection 13.
Patent GB-389485-A (GB)
Title: Improvements in and relating to the production of soft rubber and soft rubber goods
IPC: C08K5/521
Filed: 1931-09-14
Abstract: The organic phosphorus compounds of the parent Specification are used to form dispersions of such substances as litharge, barytes, zinc sulphate, zinc white, sulphur, or gas black, to be added to rubber mixes.  For example, 1 kg. of soya lecithin is rubbed into 9 litres of water, and 5 kg. of zinc white is gradually added and dispersed therein.ALSO:The organic phosphorus compounds of the parent Specification are used to form emulsions of such substances as litharge, barytes, zinc sulphate, zinc white, sulphur, gas black, to be added to rubber mixes.  For example 1 kg. of soya lecithin is rubbed into 9 litres of water, and 5 kg. of zinc white are gradually added, and dispersed therein.
Patent GB-1085289-A (GB)
Title: Centrifugal pumps
IPC: G04B11/04
Filed: 1966-06-10
Abstract: 1,085,289. Mechanical seals. INTERNATIONAL STANDARD ELECTRIC CORPORATION. June 10, 1966 [June 11, 1965], No. 25963/66. Heading F2B. In a centrifugal pump the impeller comprises blades 36a of channel section opening to the rear side of the impeller and the shaft seal 22 is lubricated and cooled by liquid circulated through a shroud 38 attached to the rear of the impeller and forming a passageway 39 with each blade 36a. A front shroud 35 is welded to the impeller blades. A carbon ring 24 rotatable with the impeller shaft 18 is urged by a spring 23 into facial sealing contact with a seal plate 21. In use, pumped liquid leaking between the impeller and the pump casing 12 into the seal cavity A (as shown by arrows C) is drawn between the shroud 38 and plate 21 and passes through the passage 39a between the seal 22 and the shroud 38 to be returned to the discharge side of the pump through passages 39.
Patent GB-1021105-A (GB)
Title: Improvements in or relating to reciprocating pump piston and rod connection
IPC: F04B53/14
Filed: 1964-06-23
Abstract: 1,021,105. Pistons. A. L. LEMAN. June 23, 1964 [Oct. 3, 1963], No. 25976/64. Heading F2T. In a piston and piston-rod assembly the piston is screwed on to the rod 5 by means of a threaded tapered bore 15 which engages a threaded tapered portion 7 on the piston-rod and a plain tapered bore 20 in the piston engages a plain tapered portion 10 on the rod. A shoulder 9 on the piston - rod formed by the junction of the portion 10 and a cylindrical portion 8 engages a shoulder 18 in the piston bore. The piston comprises a central core 11, hub portions 14 and 16 and a sleeve portion 19 having recesses 21 to receive a tool whereby the piston may be tightly secured to or released from the rod. The tapers of the bore portions 15, 20 are made smaller than the mating tapers of the rod portions 7, 10 so that when the piston is screwed hard up the parts 14 and 19 are circumferentially stressed and the engagement of portions 10 and 20 forms a fluid seal. Cup rubbers 12, 13 are bonded to each side of the piston core 11.
Patent GB-407685-A (GB)
Title: Process for the manufacture of derivatives of the barbituric acid series
Filed: 1932-09-20
Abstract: N-Alkyl-C : C<1>-disubstituted barbituric acids and their salts are prepared by alkylating the condensation products of dicyandiamide with C : C<1>-disubstituted malonic or cyanacetic acids or their derivatives and saponifying the products.  The acid derivatives may comprise, for example, esters, amides, amide acid esters, chlorides or nitriles.  According to the examples: (1) phenylethylmalonic acid diethyl ester is condensed with dicyandiamide in presence of sodium methylate to give 1-cyan-2-imino-5 : 5-phenylethylbarbituric acid, which is then methylated with dimethyl sulphate, and the resulting 1-cyan-2-imino-3-methyl-5 : 5-phenylethylbarbituric acid heated p with dilute sulphuric acid, forming 5-phenyl-5-ethyl-3-methylbarbituric acid; the use of phenylmethyl- or diallyl-malonic acid diethyl ester leads to the production of 5-phenyl-5-methyl-3-methylbarbituric acid and 5-diallyl-3-methylbarbituric acid respectively; (2) 5-D <1>, <2>-cyclohexenyl - 5 - methyl - 3 - methylbarbituric acid is prepared by reacting on D <1>, <2>-cyclo-hexenylmethylcyanacetic acid ethyl ester with dicyandiamide, methylating the product with dimethyl sulphate and saponifying with dilute sulphuric acid; similar treatment of phenylethylcyanacetic acid ethyl ester yields 5-phenyl5-ethyl-3-methylbarbituric acid; (3) 5-phenyl5-methyl-3-ethylbarbituric acid results from the ethylation with p-toluenesulphonic acid ethyl ester of the condensation product of phenylethylmalonic acid diethyl ester with dicyandiamide, with subsequent saponification.  The use of alkyl halides, e.g. ethyl iodide, for the alkylation is referred to, copper bronze, a copper salt, or a pyridine or piperidine base being employed as catalyst if desired.  Specification 339,937, [Class 2 (iii)], is referred to.
Patent GB-858228-A (GB)
Title: Improvements in or relating to covers for the heads of screws, nails or the like
IPC: F16B37/14
Filed: 1958-08-21
Abstract: 858,228. Covers for screws &c. DIXON, V. G. R. July 30, 1959 [Aug. 21, 1958], No. 26179/59. Divided out of 858,227. Class 89(1). A cover for the head of a screw &c. 4 comprises a washer-like-member 1 for positioning under the head, and a resilient-cap 3 to be.pressed under a bead 2 around member 1. In a modification, the cap has one or more tongues which are sprung or deformed outwardly under the bead.