baber/WOPTO huggingface dataset:
Patent GB-732604-A (GB)
Title: Improvements in or relating to goniometers and like devices
IPC: G01S1/02
Filed: 1953-05-14
Abstract: 732,604. Inductors. TANAKA, L, and GOTO, M. May 14, 1963, No. 13571/53. Class 38 (2). A goniometer or like device comprises a stator having a toroidal iron dust core 1 with an endless winding 2 thereon and a rotor also having an iron dust core 3 with an endless winding 4 thereon. The rotor is rotatable about an axis 7 at right angles to the planes of the stator and rotor and in one embodiment the rotor is within the stator. The rotor is held relative to the axis 7 by means of two disc members 8, 9. In another embodiment the stator is divided into two parts disposed in two parallel planes with the rotor in a parallel plane between the two parts, the rotor being of larger or smaller diameter than the stator portions. In all the embodiments the endless windings may be uniformly distributed or the stator, or rotor, or both windings may be sinusoidally distributed. The cross-section of ,the cores 1, 3 may be other than circular.
Patent GB-578768-A (GB)
Title: Improvements in the manufacture of dinghies, air cushions and other inflatable bodies
IPC: B63B7/08
Filed: 1942-09-28
Abstract: 578,768. Collapsable boats. R.F.D. CO., Ltd., and WILLIAMS, P. W. L. Sept. 28, 1942, No. 13595. [Class 113 (ii)] [Also in Group XIV] To avoid puckering of the fabric in an inflatable structure for a dinghy gunwale, air cushion, water ballast bag, &c., each inflated section (Fig. 1) of constant radius R and radius of cross-section r is produced from two flat strips of flexible material, each strip having the shape and dimensions of Fig. 2, the width 2x being #r and the radius of curvature R<1> being #R/2. If the radius of curvature of the gunwale varies, it is made by joining together portions of constant curvature, the shape and dimensions of each flat strip of material being calculated.
Patent GB-772240-A (GB)
Title: Improvements in or relating to chimney throat blocks
IPC: F24B1/189
Filed: 1954-05-10
Abstract: 772,240. Flue dampers; open fireplaces. FYRESIDE, Ltd., and JESSOP, K. G. Aug. 4, 1955 [May 10, 1954], No. 13624/54. Class 126  A chimney throat block, which may be of the kind described in Specification 772,239, has an adjustable damper mounted at the top of the flue passage and operating means for the damper extend downwardly through the flue passage. A damper plate 22 pivots about trunnions 24 resting in notches formed in the top face of the flue block. A weight 41 at the back of the plate 22'biases it towards the closed position in which the front of the damper contacts the front wall of the flue passage, leaving a restricted gap. A rod 28 passing through lugs 29, 33 on a metal strip 30 bolted to the front wall of the flue carries an arm 37 engaging the upper face of the damper 22 to swing the damper open as the rod 28 is turned by handle 26. A projection 43 on the rod 28 engages the metal strip 30 and prevents the rod 28 being turned beyond the fully open position. The throat block may have side extensions and downwardly directed hooks to support a guard or blower as described in Specification 772,241.
Patent GB-1459282-A (GB)
Title: Electrical switch assembly
IPC: H01H1/26
Filed: 1974-03-27
Abstract: 1459282 Mechanical switches MOLEX Inc 27 March 1974 [11 Jan 1974 30 March 1973] 13665/74 Heading H1N A switch assembly comprises a housing 32 including a top wall 46 and opposed side walls 48 defining a cavity 40; a pair of similar terminals 36 mounted in the cavity 40, each including a spring contact portion 66 comprising a loop extending from a base portion 64 and also including a conductor-engaging portion 30 adapted to be connected to a conductor; said base portions 64 being respectively positioned against said opposed walls 48 and said loops extending toward one another within said cavity, portions abutting to define a closed-circuit condition; a switch operator 38 pivotally mounted within said cavity 40; and cam means 44 on said operator 38 for separating said spring contact portions 66 upon pivoting of said operator. A plurality of switches are accommodated in one housing forming a dual-in-line package for mounting on a printed-circuit board. The housing has flexible walls such that a base 34 and trunnions 86 of the operators 38 are a snap fit. A transparent cover (122, Figs. 8 and 9, not shown) is a snap fit on to the housing and has an internally projecting rib (134) which prevents inadvertent actuation of the operator arms 88 when the cover is in place.
Patent GB-988433-A (GB)
Title: Improved laminates
Inventor: MILLS THOMAS NELSON
IPC: B32B27/00
Filed: 1963-04-05
Abstract: 988,433. Laminates. ESSO RESEARCH & ENGINEERING CO. March 26, 1964 [April 5, 1963], No. 13676/63. Heading B5N. A laminate incorporating coloured or printing effects is made by assembling at least one ply coated or impregnated with a curable polymer of a conjugated diene, e.g. in organic solution, with a film or ply of polythene or polypropylene having the desired effects printed thereon and curing the assembly. The plies may be wood or vegetable plies of chipboard, fibreboard, woodsheet, paper or cardboard, or mineral plies of asbestos fibre or glass fibre. With glass fibre, fabric plies, the plies may be sized with a vinyl silane and the polythene or polypropylene film may be sandwiched between the plies. Conjugated diene polymers include 1,3-butadiene, dimethyl butadiene, isoprene, piperylene, methyl pentadiene and copolymers of such dienes with alkylated styrene and alkylated benzenes. The polythene or polypropylene layers may be in the form of fabrics.
Patent GB-276730-A (GB)
Title: A method of and apparatus for the treatment of scrap containing gunmetal and white metal in order to separate the latter
IPC: C22C3/00
Filed: 1926-05-31
Abstract: 276,730. Spence, J., Courtenay, C. E., and Courtenay, H. A. May 31, 1926. Metal-heating furnaces.-In the treatment of bronze, gunmetal, &c. borings for the recovery of white metal, a charge of material is spread on a tray having a wire gauze bottom, and is heated while at rest to a temperature above the melting- point of the white metal, after which the tray is vibrated or oscillated. The furnace shown has side fire-places communicating with the heating- chamber A through ports B, and rails D for supporting the tray G, which is reciprocated by rocker arms F.
Patent GB-543681-A (GB)
Title: Apparatus for the polymerisation of organic compounds
IPC: C08F2/00
Filed: 1940-09-06
Abstract: 543,681. Polymerization apparatus. DU PONT DE NEMOURS & CO., E. I. Sept.. 6, 1940, No. 13958. Convention date, Sept. 6, 1939. [Class 1 (i)] [Also in Group V] Organic compounds of liquid or viscous nature are polymerized in elongated mould tubes by progressive heating so as to form solid rods. The heating is effected by gradual ' immersion of the rods longitudinally into a bath of hot liquid, and the non-immersed parts of the tubes are kept cool by an air blast to prevent premature polymerization. The tubes 19 are disposed in a ring and mounted at top and bottom in header plates 11, 11a. Cover plates 12, 12a fit over the header plates with annular tongue and groove engagement to form circular channels 18, bolts 13, 13a holding the plates of each pair together with the assistance of hinged clamping,rings 15. The rings 15 have wedge-shaped inside faces fitting over similar wedge rims on the plates 11, 12, 11a, 12a, and are each tightened up by a closing bolt and nut. The channel between the bottom pair of plates is filled in with a tube sealing gasket 18a, and the liquid to be polymerized is introduced, under pressure, by way of a port 20 to fill the tubes 19 and upper channel 18, displaced air escaping via vent 21. The immersion of the moulds 19 into the hot liquid 24 may be effected either by lowering the mould unit, or by raising the liquid level 25 by introducing more' hot liquid into the containing chamber. Cold air or other gas may be brought by a movable duct terminating in horizontal. nozzles directed outwardly near the level 25, or may be introduced as a blast from a fixed jet 26 directed downward. In this case a float 27 acts as a baffle to prevent undue disturbance of the surface of the liquid and to direct the current outwardly through the tubes 19. The float 27 may be of wood or of metal and may be built up of parts to facilitate insertion ; it may have a directive configuration of its top face. In dismantling the mould to extract the polymerized rods a parting clamp having a wedge inner face may be used over the plates 11, 12 after the clamp 15 has been removed. Specification 477,364. [Group V], is referred to.
Patent GB-848039-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L21/60
Filed: 1958-05-02
Abstract: 848,039. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. May 2, 1958 [May 9, 1957], No. 14048/58. Class 37 A semi-conductor silicon diode comprises a base contact member consisting of tungsten or tantalum or an alloy thereof having a co-efficient of thermal expansion approaching that of silicon on a relatively thin coating of gold, platinum or rhodium from 1 mil to 0À01 mil thick bonded to this base contact member to facilitate soldering to a base mount. Fig. 1 shows a silicon wafer 20, a base contact member 12 consisting of tunsten, tantalum or alloys thereof with osmium, platinum, nickel, cobalt, silicon or silver, a coating 16 of gold, platinum or rhodium, a silver base solder consisting of an alloy of two or more metals from the group silver, tin, germanium, lead, antimony and silicon, and a layer of aluminium or aluminium base alloy 22 attached to lead 28, this aluminium alloy being of aluminium with magnesium, zinc, gallium, indium and, or germanium. These components are assembled as shown and heated to about 1000‹C. in vacuo in order to fuse the various layers together. The base contact member is then soldered to the base mount by means of a low melting point solder 36 which melts below 300 ‹C. In an alternative embodiment (Fig. 2 not shown) the layer of gold, platinum or rhodium completely encloses the base contact member. The device is then etched in a mixture of hydrofluoric and nitric acids and then hermetically sealed.
Patent GB-729566-A (GB)
Title: Improvements relating to means for suspending or supporting the body
IPC: A62B35/00
Filed: 1952-06-04
Abstract: 729,566. Body harness. BOTHAM, V. C. June 4, 1953 [June 4, 1952], No. 14104/52. Class 141. Body harness comprises a body strap for affording support in the region of the base of the spine and provided with means, independent of the means for fastening it, for the detachable connection of the ends of a strap for engaging a pole or overhead supporting member, and a waistengaging strap which is provided with means for effecting detachable connection between the waist-engaging strap and the pole strap or the body strap. As shown in Fig. 1, the body strap 10 comprises an elliptical central portion 11 and strap portions 12 fastened by a buckle 13 engaging holes 14. Metal rings 15 are provided at the ends of the portion 11 to which hooks 24, Fig. 9, on the pole straps 21 are fastened. The pole strap comprises a main portion having holes for engagement with a buckle 27 carried by strap 28 and a stop pin at the end to allow adjustment without danger' of its becoming completely unfastened. The waist engaging strap 29, fastened at the back by means of a buckle, has a buckle 34 at each side carrying rings 33 on which are mounted spring hooks 32 which may engage the rings 15 in the position shown on a hook 24 when the linesman assumes a sitting position using the pole strap as an overhead sling. A pouch 18 for pliers &c. may be provided.
Patent GB-572874-A (GB)
Title: Improvements in or relating to means for measuring the dew point and humidity of theatmosphere
IPC: G01N25/62
Filed: 1943-08-30
Abstract: 572,874. Hygrometric apparatus. ELLIOTT BROS. (LONDON), Ltd., and SPANNER, E. F. Aug. 30, 1943, No. 14132. [Class 97 (iii)] Apparatus for measuring the dew-point and humidity of the atmosphere in which one or more thermometers provided with absorbent socks to give both wet and dry bulb indications comprises a chamber for each thermometer having an inlet controlled by a one-way valve and an outlet connected to an air aspirating means and a closed tank of water into which the sock extends through a restricted aperture. As shown, a casing a for a thermometer, which may be of the electric resistance type, is mounted in a chamber e provided with a textile sock b which dips into a tank of water through a restricted aperture. The chamber e is provided with a pipe f through which air may be aspirated, the air entering the chamber e through a non-return valve g and passing through a filter n. In practice a number of these devices is mounted in, say, the hold or holds X, Y, Z of a ship and the thermometers connected to remote recorders o. The cocks x<1>, y<1>, z<1> in the aspirating pipes f connected to the aspirator q being closed so that no air passes through the chamber e. One or more of the recorders o with their pens r are set in motion and a recording of the dry-bulb temperature is obtained. One or more of the cocks x<1>, y<1>, z<1> are then opened so aspirating the air of the hold or holds X, Y, Z through the chambers e and a wet-bulb temperature is recorded on the recorders.
Patent GB-780927-A (GB)
Title: Improvements in and relating to carbon transfer webs
Inventor: GARWOOD VICTOR WILLIAM
IPC: B65H26/00
Filed: 1956-05-07
Abstract: 780,927. Carbon papers. LAMSON PARAGON, Ltd. May 7,1956, No. 14147/56. Addition to 757,382. Class 100(4) [Also in Group XV] In a web of carbon paper as described in the parent Specification, the web is provided with an additional electrical conducting area spaced transversely of theoriginal areas on the web. The conducting areas 3a, 3a<SP>1</SP> and 3b on the left are similarto those in the parent Specification, but the additional area 3d is provided positioned on the right level with the last area 3b as shown or, it may be longitudinally further away from the leading edge of the web. The metal rolls 5, 7 in a tabulations typewriting or like machine when bridged by the left hand conducting areas ring an alarm bell, while rolls 6, 8 when bridged, operate a relay 12 to stop the operation of the machine.
Patent GB-391981-A (GB)
Title: Floor covering and process of preparing the same
IPC: D21J1/00
Filed: 1932-05-18
Abstract: 391,981. Floor-covering material. JACKSON, R. G., Bayard Avenue, Woodbury, New Jersey, U.S.A. May 18, 1932, No. 14171. Convention date, June 2, 1931. [Class 140.] Floor-covering material is made by treating a felted sheet of artificially curled vegetable fibres of the kind described in Specification 313,085, [Class 96, Paper, &c.] with decorative colouring medium which penetrates into the body of the sheet and tints the fibres, and then saturating the sheet with a waterproof toughening agent capable of solidifying and resisting wear. The sheet 1, of curled fibres, is treated with colouring medium which penetrates the sheet to form differently coloured parts 2a, 2b to constitute, e.g. a tile pattern. An outer transparent coat 3 of cellulose lacquer or varnish may be provided, and a backing 4 of paint, rubber, or oil and cork may be applied. The material may also be stiffened by applying priming material such as drying oil and natural or artificial resin. After the penetrating medium a surface decorative paint of similar colour but of heavier consistency may be applied. The whole is then treated with a waterproofing saturant such as a solution containing a cellulose ester, or resins and waxes which will completely fill the pores of the sheet. When the saturant is dry, the sheet may be subjected to pressure, and if desired, embossed. A material having a nap on one or both surfaces may be produced by applying colouring medium of such consistency that it will sink into the surface, and then raising a nap mechanically. A paint having from 30-50 per cent of the vehicle volatile may be used in this case. The sheet of felted artificially curled vegetable fibres is made by treating wood or other cellulose pulp with a swelling agent under such conditions of concentration and temperature that gelatinization of the pulp does not take place, the swelling agent being washed out before the reaction has proceeded further than required to swell the fibres. The crinkled fibres are then made into a felt or paper by usual methods. Swelling agents used are zinc or ferric chloride, various thiocyanates, cuprammonium solutions &c., but preferably caustic alkali, particularly sodium hydroxide in concentrations between 8 and 35 per cent. The ratio of alkali to pulp should be from 4.5 to 7À4 parts by weight to one. The treatment is carried out at room temperature in apparatus which squeezes the pulp, such as a kneading machine, or a beater machine with the beater roll raised above the bed plate. The duration of treatment is from several seconds to 30 minutes, and the alkali is washed out by a stream of water when the treatment has proceeded far enough. The time required is determined bv a test of the freeness of the treated pulp, that is, of the time required for the water to drain from the pulp under specified conditions. Pulp treated as described has a very high freeness value. After the crinkling process, the pulp is beaten, and deposited in sheet form.
Patent GB-994380-A (GB)
Title: Process for the manufacture of polyvinyl ester dispersions
IPC: C08F18/04
Filed: 1962-04-12
Abstract: In a process for the free radical emulsion polymerization of vinyl alkanoates in the presence of 0.5 to 5 weight per cent of a protective colloid and with gradual addition of the monomer to the polymerization reaction mixture, the polymerization is carried out in two stages at a reflux temperature above 65 DEG C. and below the boiling-point of the aqueous phase and at a temperature rising to between 85 and 95 DEG C. and between these two stages the reaction mixture is cooled to a temperature not exceeding 65 DEG C. and is maintained at such a temperature for at least 30 minutes. Specified vinyl alkanoates are vinyl acetate, vinyl propionate and vinyl butyrate.  These vinyl esters may be copolymerized with higher vinyl esters, acrylic esters, maleic diesters, vinyl sulphonic acid, acrylic acid, crotonic acid, maleic acid or semi-esters thereof with alkanols or polyglycol monoethers. Cross-linking monomers, e.g. divinyl adipate, vinyl acrylate, vinyl crotonate, allyl acrylate, diallyl phthalate, diallyl maleate, ethylene glycol dimethacrylate and triallyl cyanurate, may also be present.  Specified protective colloids are polyvinyl alcohol, cellulose ethers and alkylaryl polyglycol ethers. Polymerization may be effected in the presence of hydrogen peroxide, persulphates or t.-butyl hydroperoxide, optionally together with bisulphites, dithionites, sodium formaldehyde hydrosulphite, formic acid, tartaric acid, ascorbic acid or salts of transition metals.  In the first step 20 to 80% of the total monomer may be added and completely polymerized, the mixture being cooled to between 45 DEG  and 65 DEG  C., e.g. 60 DEG C., for one to two hours. In examples vinyl acetate is polymerized in aqueous media in the presence of (1) polyvinyl alcohol, sodium paraffin sulphonate, calcium chloride and hydrogen peroxide together with (2) tartaric acid.
Patent GB-492204-A (GB)
Title: Improvements in rubber overshoes
IPC: A43B3/16
Filed: 1937-05-21
Abstract: 492,204. Rubber overshoes. TENNANT' W. J. (Akciova Spolecnost Askim Gummivarefabrik) May 21, 1937, No. 14243. [Class 17 (ii)] A tongue 4 of arcuate cross - section is connected at its lower end only inside the front instep part of the upper of a rubber overshoe below an opening 3 in the front, the edges of its upper portion resting against the upper at the sides.
Patent GB-544583-A (GB)
Title: Improvements in or relating to the treating of articles by the heating action of high frequency electric fields
IPC: A43D95/12
Filed: 1940-09-16
Abstract: 544,583. Conveyers. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Sept. 16, 1940, No. 14249. [Class 78 (i)] [Also in Groups XI, VII and XL] Apparatus for heat-treating articles by the application of a frequency electric field, e.g. drying shoe soles; comprises a number of shoe' supports 10 each having four similar grooved pulleys 12 arranged to travel on rails 14, 14<SP>1</SP> which are curved at their end portions. The supports 10 are driven by an endless chain 18 connected to pins 22 each projecting from one of the supports. Each support 10 remains horizontal on passing around the curved rails, two pinions 24 being rotatably mounted on the sprocket 20 to engage a fixed pinion 25, one engaging a fixed pinion 26 on a plate 28 forming part of the support 10, in a manner similar to that described in U.S.A. Specification 2,132,362. Each support 10 comprises a "Bakelite" (Registered Trade Mark) structure 40, 42, 44 carrying the pulleys 12 on studs which also carry the plate 28. Extensions 50, 52 provide spaces within which a shoe may rest. To facilitate loading and unloading of the shoes, the carrier 76 is swung upward automatically on approaching a pre-determined loading station by a fixed lug 122 which engages the depending arm 124 of a lever pivoted on the shaft 78, the upper arm of which is fixed to the carrier by a bolt 126. Downward movement of the carrier is limited by a lug 128 on the lever which contacts an adjustable stop screw 130.
Patent GB-742549-A (GB)
Title: Improvements in and relating to electric circuit breakers of the gas-blast type
IPC: H01H33/70
Filed: 1953-05-21
Abstract: 742,549. Gas-blast switches. GENERAL ELECTRIC CO. May 21,1953 [May 21, 1952], No. 14314/53. Class 38(5) In a gas-blast switch having an insulating cylindrical casing 10 containing a pair of contacts, one, 9, of which is reciprocable, a foraminous member formed by a scroll of spirally-wound corrugated metal strip 58 is disposed in the path of the blast to operate as a blast diffusing means. A flat metal strip 57 may be interleaved between the convolutions of the corrugated metal strip 58. The scroll may be retained in the annular space between an inner retainer 53 and an outer sleeve 56 by spider elements 55 and webs 54 which radiate from the retainer 53 and are brazed to the sleeve 56. An insulating ring 59 secured in a groove in the retainer 53 guides the movable contact 9. The Specification also describes a blast valve control arrangement similar to that of Specification 723,156 but with the addition of means to partially open the blast valve during contact closing (Fig. 1, not shown). Specifications 712,436 and 733,434 also are referred to.
Patent GB-722008-A (GB)
Title: Improvements relating to drawing board appliances
IPC: B43L13/06
Filed: 1951-06-16
Abstract: 722,008. Draughting-machines. HORNIG, V. March 10, 1952 [June 16, 1951], No. 14321/51. Class 97 (3). A draughting-machine comprises parallel linkages 1, 2, the inner ends of which are pivoted to a joint ring 5 and the outer ends of which are pivoted to a rocker bar 7, supported at 24 by the drawing board, and to a drawing instrument 11 respectively. Each link is slotted at each end thereofas at 13 and receives a bearing 14 for a pivot pin 15; a screw 17 extends across the slot so that the bearing may be adjusted to take up wear. Rocker bar 7 is secured to a shelf 29 beneath and parallel to the plane of the linkage 1, a ball bearing 33 being interposed between an arm of this linkage and the shelf, which latter serves to reduce the bending movement and is supported by an adjusting screw 36 whereby the shelf can be raised or lowered. Specification 650,598 is referred to.
Patent GB-419883-A (GB)
Title: Improvements in or relating to resinous compositions
IPC: C08G8/28
Filed: 1933-05-18
Abstract: Resinous compositions are prepared by condensing phenol or cresol with an aldehyde such as formaldehyde with or without a base such as ammonia until the mixture separates into two layers and combining the condensate with a natural resin and a fatty oil such as tung or linseed oil.