baber/WOPTO huggingface dataset:
Patent GB-914838-A (GB)
Title: Improvements in or relating to signal transmission circuit arrangements
IPC: H04B1/58
Filed: 1961-05-18
Abstract: 914,838. Two-way transmissions. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 18, 1961 [May 21, 1960], No. 18168/61. Class 40 (4). A hybrid transformer circuit comprises a transformer 10 having two identical secondary windings 15 and 16 connected in opposite arms of a bridge circuit, the other arms of which are formed by resistors 18 and 19 matching the characteristic impedance of the lines feeding the two loads 13 and 14 which are each connected across a diagonal of the bridge. The transformer ratio is chosen to match the loads 13 and 14 to the generator 11.
Patent GB-1170994-A (GB)
Title: Improvements in or relating to Motor Vehicles.
Inventor: POPELAR VLADIMIR
IPC: B62D33/06
Filed: 1967-04-20
Abstract: 1,170,994. Vehicle bodies. TATRA, NARODNI PODNIK. 20 April, 1967 [20 April, 1966], No. 18185/67. Heading B7B. The longitudinals 1 which may be separable from the main chassis carry on their exterior sides compartments each comprising a lower wall 10, a front wall carrying the head lamps and a pivoted side wall giving access to the interior of the compartment for maintenance of control equipment mounted therein. The upper wall of the compartment is formed by the floor of a removable driver's cab.
Patent GB-997805-A (GB)
Title: Oil-in-water emulsions and a process for the preparation therefor
IPC: C09K23/00
Filed: 1964-05-01
Abstract: A stable oil-in-water emulsion consists essentially of (a) a continuous aqueous phase having dissolved therein a stabilizing amount of an emulsion stabilizing agent having an HLB number of from 8 to 30 and a critical micelle concentration of not more than 5.0% by weight on water basis, and (b) a dispersed phase consisting essentially of particles of a homogeneous mixture of 40-95% by weight of a petroleum wax and 60-5% by weight of a copolymer of ethylene and a C3-C18 alpha olefin.  The emulsions are preferably formed by making a solution of polymer and wax composition in a volatile solvent which is water-immiscible and emulsifying this solution with an aqueous solution of an emulsifying agent at a temperature between 50 DEG  C. and the boiling point of the solvent, removing the solvent from the heated emulsion by vaporization thereof while maintaining positive pressure changes below 0.35 kg./cm.2 per second, maintaining the emulsion from which the solvent has been removed in a quiescent state for formation of an upper rich emulsion layer and a lower poor emulsion layer, and separately recovering the upper rich emulsion layer.
Patent GB-444284-A (GB)
Title: Apparatus for combating insect pests
IPC: A01M17/00
Filed: 1935-06-26
Abstract: 444,284. Fumigating grain mills. BRABENDER GES., 65A, D³sseldorfer Chaussee, and BARTHELS, W., 46, Huckinger Strasse, both in Duisburg, Germany. June 26, 1935, No. 18341. [Class 81 (i)] In apparatus for fumigating grain mills, wherein insecticidal gases are led through pipes directly to each separate machine, the gas outlet pipes are formed with nozzles having an insert of porous material such as sintered glass particles or ceramic substances. In the construction shown the pipe a is provided with a porous disc b of 6 to 10 m.m. diameter. The thickness of the individual discs may be varied so as to give uniform distribution to the various parts of the plant.
Patent GB-310706-A (GB)
Title: Improvements in deckling machines
IPC: B26D3/02
Filed: 1928-06-25
Abstract: 310,706. Marks, E. C. R., (Old Colony Envelope Co.). June 25, 1928. Milling-cutters, machines with.-In a machine for reducing the thickness of the edge of paper &c. sheets, the sheet at each edge is acted upon by a milling cutter 14 driven by an electromotor M, while it is supported by a roller 18. The cutter 14 and motor M are adjustable along a guide 6 for varying the distance between the tools and feed-rolls 35 are adjustable axially of shafts 30. The speed of the feed-roll shafts is adjusted by a radially movable friction gear. Suction pipes 85 extract the waste. A bearing 70 prevents whipping of the feed-roll shafts.
Patent GB-274125-A (GB)
Title: Improvements in or relating to apparatus for the preparation of knots of yarn or thelike
IPC: B65H54/56
Filed: 1927-07-11
Abstract: 274,125. Hampe, R. July 12, 1926, [Convention date]. Hanks, treating.-In the formation of knots of yarn and the like, the hanks are wound on knot pins b, c, mounted on a frame a placed on a table 1 beneath a slide carrier 2 operated by a mangle motion consisting of endless racks driven by toothed wheels 9 from a motor 12 to wind yarns from bobbins 5 mounted on links 4 around the pins b, c, the yarns passing down the tubes 4 to the mouth-pieces 6 for this purpose. A yarn meter is used, and when the right length for hanks is wound on the pins b, c, the frame a is lifted out on to a table 20, and the pins c are rotated by worm and worm wheel mechanism f, g, Fig. 1. A rod k is then inserted as shown in Fig. 2, the arm l, carrying pins b, is swung over to the position shown, and the end slid off the pins b on to the pins c. A reverse turn of the shaft h completes the hanks which are removed by swinging back the arms l and lifting out the rod
Patent GB-516533-A (GB)
Title: Process for restricting the piping hole in flat cast ingots
IPC: B22D7/00
Filed: 1938-06-22
Abstract: 516,533. Casting processes; moulds. COMPAGNIE DES FORGES DE CHATILLON, COMMENTRY, & NEUVES - MAISONS. June 22, 1938, No. 18529. Convention date, June 25, 1937. [Class 83 (i)] In a method of restricting a pipe hole in a metal ingot L cast in an open trough T, one portion of the mould is insulated by a member I<1> and a cover I<2> and, when a solidified sheath has formed around the metal in the uninsulated portion of the mould, additional metal is caused to flow axially into the ingot either by raising the insulated end of the mould, or, in a modification, not shown, in which the insulated portion is formed as a runner extending upwards, by pouring additional metal into this insulated runner or by both means. Cooling of the ingot in the uninsulated portion'of the mould is assisted by water jets r. If desired, the trough T may have a movement relative to the point of admission of the molten metal during pouring and a stop off block B may be used in the method shown;
Patent GB-803176-A (GB)
Title: Improvements in or relating to air blade coating apparatus
Inventor: KOSTER ALFRED HERBERT
IPC: B05C11/06
Filed: 1956-06-15
Abstract: 803,176. Air blade coating apparatus. ILFORD, Ltd. April 23, 1957 [June 15, 1956], No. 18618/56. Drawings to Specification. Class 140. An air blade coating apparatus comprises, within the air blade, a labyrinthine structure having an extremely large number of interconnected channels between the air supply and the air jet. The labyrinth may be formed by loosely packed fibrous material which may be of continuous nylon filaments. The nozzle of the air blade may be adjustable and air may be supplied to the air blade from one or a number of inlet pipes. The apparatus is used in processes where an excess of coating material is supplied to a moving sheet material and the excess removed, e.g. in coating film bases with gelatino photographic emulsions.
Patent GB-1009272-A (GB)
Title: Electric switches for automatic washing machines
IPC: D06F34/30
Filed: 1963-05-10
Abstract: 1,009,272. Time switches. BUSCH-JAEGER DURENER METALLWERKE A.G. May 10, 1963 [May 11, 1962], No. 18660/63. Heading H2B.  A time switch for an automatic washing machine which comprises a single synchronous motor driving change-over contacts (to oscillate the washing drum) and also a stepping programme device, is arranged such that the stepping device is stopped while water is being heated and automatically restarted upon a pre-selected temperature being reached but the change-over contacts continue to be driven during the heating period. The motor drives a shaft 6a which operates change-over contacts 7 by means of a cam 8 and also steps programming cams 12 (Fig. 1) by means of a cam 10, pawl 9 and ratchet wheel 11 (Fig. 2). The cams 12 operate contact arms 13 and a programme is selected by a knob (Fig. 4, not shown) which sets cams 3 controlling the positions of contact arms 14 co-operating with contact arms 13. When the water is to be heated a gap 11b on ratchet wheel 11 is engaged by pawl 9 and the cams 12 cease to step, but the motor and contacts 7 continue to operate. In arriving at this dwell period a pin 19 on a ratchet wheel 11 urges a lever 18 to compress spring 20 and a blade 21 urged by spring 22 rises to latch the lever 18 (Fig. 3, not shown). When the desired temperature is reached a sensing device 17a causes member 17b to pull blade 21 down against spring 22 and unlatch lever 18. Spring 20 returns lever 18 to the position shown in Fig. 2 and a pawl 23 thereon steps the wheel 11, thereby causing the pawl 9 to re-engage teeth 11a and continue stepping the cams 12. A cam 26 on the same shaft as programme-selector cams 3 acts on a blade 25 coupled to member 17b to determine the temperature at which blade 21 unlatches lever 18. Instead of an electric motor a mechanical clockwork mechanism may be used.
Patent GB-1105266-A (GB)
Title: Preparation of conjugated diene-containing copolymers
IPC: C08F36/04
Filed: 1965-05-04
Abstract: A latex of a conjugated diene polymer having a high degree of particle uniformity and of surface tension uniformity is produced by continuously adding to an aqueous dispersion of a polymer latex of particle size less than that of the polymer particles to be produced, under polymerization conditions, monomer material which is soluble in the polymer latex and comprises conjugated diene and emulsifier, the rate at which the monomer is added being such that it is associated with the initial latex particles and the rate at which emulsifier is added being proportional to the rate of growth of surface area of the polymer particles and insufficient to cause the formation of micelles and provide loci for polymerization, and in amounts such that only 30 to 70% of the surface area of the particles is covered with emulsifier.  The specified conjugated diene polymers are those of isoprene and 2,3-dimethyl-1,3-butadiene and of butadiene (preferred). The initial latex particles may make up 0.5 to 98% of the final polymer, the amount of initial latex particles being 2 to 10% of the monomer(s) added and their average size being 400 to 800A, while the latex produced may have an average particle size of 2000 A.  The polymerization may take place at 60 DEG  to 82 DEG  C. under a pressure of 2.1 to 8.4 kg. per sq. cm. in the presence of a free radical initiator and the polymerization takes place until no more polymer is formed.  The initial polymer latex may be an aqueous dispersion of a 60:40 styrene butadiene latex and the monomers added in the examples are (1) styrene, butadiene, methacrylic acid; (2), (3) butadiene, styrene, vinylidene chloride and methacrylic acid; (4) styrene and butadiene; (5) butadiene, acrylonitrile, acrylic acid; and (6) and (7) styrene and butadiene.
Patent GB-596172-A (GB)
Title: Improvements in or relating to the construction of solid or block model lorries and/or trailers
IPC: A63H17/05
Filed: 1945-07-23
Abstract: 596,172. Constructional toys. NAPIER, J. E. July 23, 1945, Nos. 18850 and 18851. [Class 132 (iii)] A block model motor lorry or trailer is built up from mudguard units 1 of arch section having longitudinal recesses 1a, a longitudinal frame member 3 adapted to fit into the recesses 1a and hold axle or spring plates 2 in position as shown in Fig. 6, a body 4 adapted to be screwed to the units 1 and the member 3 as shown in Fig. 6; a driver's cabin block 5 adapted to be secured to the mudguard unit, and wheels 6 mounted on axles passing through holes 2b in the plates 2. A number of different vehicles can be constructed from the units described.
Patent GB-1435432-A (GB)
Title: Modulator circuits for translating dc signals into synchronous ac signals
IPC: H04L27/04
Filed: 1974-04-30
Abstract: 1435432 Telegraphy TEKADE FELTEN & GUILIEAUME FERNMELDEANLAGEN GmbH 30 April 1974 [18 May 1973] 18867/74 Heading H4P An arrangement providing binary keying of an interrupted A.C. transmission signal comprises a pulse shaping circuit R1, R2, C1, C2, C3 whose function is to restrict bandwidth by deforming the input signal, and whose input is connectible to a D.C. signal line for one mode of operation (i.e. mask=0 and space = non-zero voltage) or alternatively through switch contacts A, O to an inverter including a transistor T1 with a threshold Zener diode D3, which substantially suppresses noise voltages, for inverted keying. The base of keying transistor T2 is connected to a source-UB2 with a bottoming diode D2 limiting, with diode D1, charging of capacitors C2, C3; C3 may also act as a substantial short circuit for carrier frequency. A capacitor CK suppresses D.C. keying signal spectrum. In an alternative arrangement a further transistor T3 forms a differential amplifier with T2. A second source-UB 1 should have a higher voltage than -UB2. In order to provide distortion free modulation of the carrier frequency, the time equivalent of the effective A.C. signal envelope must substantially correspond to the length of the keyed D.C. signal.
Patent GB-682630-A (GB)
Title: Means for automatically actuating machine-tool slides
Inventor: MAYO HENRY THOMAS
IPC: B23B47/18
Filed: 1950-02-28
Abstract: 682,630. Variable-speed gearing. WEBSTER & BENNETT, Ltd. May 24, 1951 [Feb. 28, 1950], No. 18878/50. Class 80 (ii). In a machine tool with a tool holder carried by slides movable at right angles, shafts j, m actuating the slides are driven through worm gearing h, q and friction clutches k by the output shafts g, p of a pair of differential gears, the input shafts f, o of which are driven through worm gearing c, d from the shaft b of a constant-speed electric or fluid motor a, the planet carriers of the two differentials being driven through worm gearing t, x from variable-speed electric or fluid motors 3, 4, whereby the speed and direction of motion of the shafts j, m are controlled. The speeds of motors 3, 4 are controlled by the movements along a pattern of a stylus carried or operated by the tool holder. Specification 676,474, [Group XXII], is referred to.
Patent GB-977035-A (GB)
Title: Method of assembling parts of an electrical switch
Inventor: FRASER ROBERT WALLACE
IPC: H01H13/02
Filed: 1962-05-16
Abstract: 977,035. Assembling switches. UNITEDCARR Inc. May 16, 1962, No. 18909/62. Heading B3A. A method of assembling a freely rotatable tubular contact of a switch to an axially movable hollow plunger which constitutes the operating member of the switch, comprises inserting the tubular contact into one end of the plunger, positioning the said one end of the plunger in contact with an annular external flange at one end of the contact, inserting a tool into the opposite end of said plunger into abutting relationship with the other end of the contact, applying axial pressure to said tool whereby the said other end of the contact is deformed outwardly over an internal shoulder of the plunger to retain said contact therein. The switch assembly comprises a flanged housing 12, a hollow plunger 18 of insulating material having stepped internal and external diameters, a spring 20, and a tubular contact 46 having a cup-shaped flange 48 at one end and a pair of inwardly facing indentations 50, 52. The overall length of the tubular contact is greater than the distance of an internal lip 30 from the end 26 of the plunger. After assembly of the component a twodiameter tool 54 is inserted in the plunger and axial pressure applied to cause the end 56 of the contact to flare over the internal lip 30 in the plunger sufficiently to retain the assembly together and permit rotation of the contact relative to the plunger. After removal of the tool a snap type closure cap 40 is inserted in the end of the plunger. Specification 969,340 is referred to.
Patent GB-1064993-A (GB)
Title: Improvements in and relating to the feed means in machine tools
IPC: B23F23/12
Filed: 1964-05-07
Abstract: 1,064,993. Gear-finishing. CARL HURTH MASCHINENUND ZAHNRADFABRIK May 7, 1964 [June 10, 1963], No. 18995/64. Headings B3K and B3L. In a gear-finishing machine, using a gear- or rack-like tool, the work and tool are continuously fed radially relatively to one another, with a predetermined yielding force, up to an abutment. The feed means may be pneumatic or hydraulic or a screw backed by a spring or an hydraulic piston. The tool or the work may be fed. A slight separation of tool and work, at a controlled thrust, may be made for the final finish, followed by a rapid return. In a plunge-feed shaving machine, the work 110 is carried by stocks 108, 109 having upper limit feed stops 113, 114, the stops being of different heights when bevel gears are to be finished. The stocks are mounted on a table 106, which can rock by an amount limited by screws 111, 112, a slide 104 fed by a screw engaged by a nut rotated by a crank 117 and worm gearing 120, or by a motor 122 and multispeed gearing 123. In operation, the cutterdrive is started and a switch 143 is closed actuating a solenoid valve 130 and supplying fluid to a piston 124 to move the work into tight mesh with the cutter. Machining continues, and the blocks 113 and 114 are fed against the cutter support 102 and a switch 140 is actuated. A relay 146 is operated which, after a time delay to allow final finishing without chip removal, actuates the valve 130 to allow work retraction at a slow rate determined by a valve 139. After further delay, a valve 137 is opened to allow rapid retraction of the work. In a modification in which the work 110, Fig. 2, can be traversed, the work-slide is fed upwardly, by a spring 192 adjusted by a worm-rotated nut 216, under the control of a roller 191 contacting a cam 181. The cam rotates rapidly until it reaches a point allowing maximum infeed, at which time the cam is stopped by a switch 189, operated by a cam 187, and the roller 191 is then out of contact with the cam. As machining continues, the roller 191 moves up into contact with the cam until a stop 195 strikes a lever 196 and operates a switch 198 to recommence the rotation of the cam. The machining depth remains constant for a short time before a slow withdrawal commences. When a switch 190 is operated by a cam 188, the cam is rotated at a fast rate to complete the withdrawal. In further modifications, the switches are replaced by an electrical resistance, capacitance or inductance which is responsive to load, or by a piezo-electric device in a bridge circuit, so that a pulse is generated to continue the rotation of the cam. The electrical devices may be replaced by pneumatic or hydraulic devices. Reference has been directed by the Comptroller to Specification 1,004,367.
Patent GB-501790-A (GB)
Title: Improvements in or relating to apparatus for manufacturing rubber stems of tyre and like valves
Filed: 1937-09-02
Abstract: 501,790. Moulding tyre-valve stems. JENKINS BROS. Sept. 2, 1937, No. 19002/38. Convention date, Sept. 30, 1936. Divided out of 501,750. [Class 87 (ii)] The rubber stem of a tyre or like valve having a metal insert 13 of the kind described in Specification 501,750 is moulded in a threepart die 42, 43, 44. The part 42 carries a pin 46 for the bore of the stem and is guided by a tubular fitting 45<1> serving to position the insert 13. A conical part 49 of the pin swages the opening in the insert and prevents entry of rubber therein.
Patent GB-190973-A (GB)
Abstract: 190,973. Wood, E. W. May 15, 1922. Heels, facing. - A device for pressing a cemented split portion of a sole 11 against a heel brast comprises a pad 25 shaped to the heel breast and two elastic straps 26, 27 joined by the pad. The loop 26 applies pressure to the upper part of the split sole and is looped over the top of the shoe or last, and the loop 27 applies pressure to the lower part of the split sole, is crossed at the rear of the heel, and also looped over the shoe.
Patent GB-1003306-A (GB)
Title: Alkyds and polyurethanes derived from adducts of hexahalocyclopentadienes
IPC: C08G63/682
Filed: 1962-05-17
Abstract: Alkyl resins based on hexahalocyclopentadiene adducts and having acid numbers of 20-90 have their viscosities reduced by reacting them with sufficient of a mono-epoxide to produce alkyd resins with acid numbers below 20. The alkyds resins may be the reaction products of (a) an adduct of a hexahalocyclopentadiene and an unsaturated polycarboxylic compound with a polyhydric alcohol at least part of which is an alcohol with at least 3 hydroxyl groups or (b) an adduct of a hexahalocyclopentadiene and an unsaturated polyhydric alcohol with a polycarboxylic compound and a polyhydric alcohol at least part of which is an alcohol with at least three hydroxyl groups or (c) an adduct of a hexahalocyclopentadiene and an unsaturated polyhydric alcohol with a polycarboxylic compound having at least three carboxyl groups. The halogen may be fluorine, chlorine or bromine.  The polyhydric alcohols and polycarboxylic compounds which are reacted with the adducts may be aliphatic, cycloaliphatic, aromatic or heterocyclic and may be saturated or unsaturated.  The polyhydric alcohols may contain hetero oxygen or sulphur atoms and may be substituted by halogen atoms or ester groups.  The polycarboxylic compound may also be halogen-substituted.  The mono-epoxide may be ethylene oxide, propylene oxide, butylene oxides, isobutylene oxides, decylene oxides, 2 : 3 - epoxyhexane, 3 - ethyl - 2 : 3 - epoxyoctane, cyclohexene oxide, styrene oxide, epichlorohydrin, epibromohydrin, glycidol, allyl glycidyl ether, methyl glycidyl ether, phenyl glycidyl ether, butyl glycidyl sulphide, glycidyl methyl sulphone, glycidyl acrylate, glycidyl methacrylate, glycidyl benzoate, glycidyl acetate, glycidyl sorbate, glycidyl allyl phthalate, phenyl-(p-octadecyloxybenzoyl) ethylene oxide, triphenyl glycidyl silane,  <FORM:1003306/C3/1> or <FORM:1003306/C3/2> Fire-retardant polyurethane resins and foams are made by reacting the above alkyds with polyisocyanates or polyisothiocyanates or reaction product therewith and (1) polycarboxylic compounds, (2) polyhydric alcohols, (3) hydroxylated polyesters, (4) hydroxylated polyethers derived from mono-epoxides and polycarboxylic compounds, polyhydric alcohols or polyhydric phenols (including phenol-formaldehyde condensates) or (5) reactions products of epoxides and certain phosphorus compounds are disclosed in Specification 984,474.  The usual catalysts may be used, e.g. tertiary amines, antimony compounds or tin compounds.  The alkyds may also be foamed in admixture with the substances defined under (3), (4) and (5).  In making the foam, the foaming agent may be water, a fluorochlorocarbon, a tertiary alcohol (see Specification 873,975), a secondary alcohol, a glycol, a polycarboxylic acid or anhydride, dimethylol urea, polymethylol phenols, formic acid or tetrahydroxymethylphosphonium chloride. The foam-forming mixture may also include a silicone emulsifier and glycerol.  Specification 873,974 also is referred to.