baber/WOPTO huggingface dataset:
Patent GB-528066-A (GB)
Title: Resistor units and method for making same
IPC: H01C17/28
Filed: 1939-04-21
Abstract: 528,066. Moulding electrical components. BENKELMAN, G. F. April 21, 1939, No. 12096. [Class 87 (ii)] [Also in Group XXXVI] A resistance element is formed with end surface! against each of whicl abuts a termina conductor having an abutting end smaller than the end surface. A heat setting cement having finely distributed conducting particles and having a greater conductivity than the resistance element is applied to each end surface and the abutting end of the terminal conductor is embedded in this cement. The whole is then heated to set and harden the cement to make a mechanical connection between the terminal conductors and the end surfaces of the element. A resistance rod 23 is moulded from a mixture of conducting material such as amorphous carbon, a fine insulating filler such as silica, and a cementing bond of phenol condensation product. After moulding, the ends of the resistance element are coated or dipped into a mixture 27 having a greater conductivity than that of the resistance element 23. This mixture may comprise a thin liquid alcohol solution of 50 per cent. phenol condensation product and 50 per cent. graphite. The resistance unit is then heated to 450‹F. to polymerization and tested to determine its resistance value. Terminal conductors 21, 22 are bent at one end to form a head at right-angles to their length and are applied so as to abut against the dipped end surfaces of the resistor 23. Cement 26 consisting of 50 per cent. graphite, 50 per cent. phenol condensation product, and alcohol to form a paste is then applied to fasten the terminal conductors, and the element is heated to 350‹F. to polymerize the phenol condensation product. A number of such resistors is then placed in a mould 31, Fig. 9, between two strips 40A, 40B, of phenol condensation product mixed with wood flour and an alcohol plasticizer. The mould is formed with a number of cavities to take the resistance units and with guide plates 35 with notches 37 to take the terminal conductors 21, 22 so as to centralize the resistors over the cavities. The upper half 41 of the mould is then placed in position and guided by a pin 38 while being pressed between heated platens. The insulating material 40A, 40B, is thus moulded round the resistors to improve the mechanical strength of the junction with the terminal conductors and to form an insulating casing 24. In a modification, the coating or dip 27 is dispensed with. Instead of a moulded resistance unit, the resistance element may comprise a film of conducting material such as graphite, colloidal graphite, or amorphous carbon deposited on a small porcelain or glass rod.
Patent GB-604421-A (GB)
Title: Yarn winding machine
IPC: B65H54/14
Filed: 1944-09-28
Abstract: 604,421. Winding yarn. CLARK, D. M. (Abbott Machine Co.). Sept. 28, 1944, No. 12179/47. Divided out of 604,354. Drawings to Specification. [Classes 120(ii) and 120(iii)] A yarn winding machine comprises a plurality of winding units, each adapted to carry a winding bobbin, means for conveying the units in a procession, means for automatically discharging wound bobbins from their winding positions in the units while they are travelling and means for diverting the wound bobbins into containers at different places along the path of travel of the units, dependent upon the winding unit upon which the bobbin was wound, so that wound bobbins produced by predetermined winding units are deposited in corresponding containers. Each unit includes means for temporarily holding a discharged bobbin, such means including a gate, the machine including means for opening the gates at predetermined places in the path of travel of the units' The invention is particularly described as applied to the machine described in Specification 604,354. Specification 522,664 also in referred to.
Patent GB-179070-A (GB)
Title: A grease-splash guard for frying pans
IPC: A47J37/10
Filed: 1921-04-28
Abstract: 179,070. Porter, P. April 28, 1921. Splash - guards for cooking - stoves ; containers for articles to be heated. - A splashguard for use with a frying-pan comprises a metal casing a, adapted to encircle the frying- pan, supported on a base b, which rests on a flange b<1>. An opening in the casing is closed by a hinged door c, and a slot e beneath the opening accommodates the handle of the frying-pan.
Patent GB-723621-A (GB)
Title: Improvements in or relating to a light weight laminated building unit
IPC: E04C2/34
Filed: 1951-05-25
Abstract: An adhesive for uniting the layers of a laminated hollow building unit comprises a mixture of an alkyd resin and a diisocyanate which forms a cellular plastic layer on setting.  The alkyd resin may be made from reactants wherein the ratio of hydroxyl to carboxyl groups is between 3 to 1 and 4 to 5.  The resin may be prepared from specified proportions of (a) glycerol, adipic acid, and phthalic anhydride; (b) glycerol, 1,4-butylene glycol, and adipic acid; (c) trimethylol propane, adipic acid, and phthalic anhydride; (d) glycerol and adipic acid; (e) trimethylol propane and phthalic anhydride; (f) glycerol, phthalic anhydride, and oleic acid; (g) glycerol, adipic acid, castor oil, and maleic anhydride.  The diisocyanate may be metatoluene diisocyanate and the resin may have a water content of 0.1-2.5 per cent.  The adhesive may contain a small proportion of a thermoplastic polymeric substance such as ethyl or benzyl cellulose, rubber, chlorinated rubber, vinyl chloride or acetate polymers or copolymers, polystyrene, polydichlorostyrene, or polyvinyl butyral.
Patent GB-227705-A (GB)
Title: Improvements in or relating to unidirectional power transmission mechanism
IPC: F16D41/066
Filed: 1924-05-20
Abstract: 227,705. Evans, H. W. May 20, 1924. Stationary - mould machines. - Comprise free-wheel driving mechanism, provided with means whereby the constantly - rotating driving member may be connected at will with the driven member and is automatically disconnected after a predetermined angular movement, for use in the machine described in Specification 227,704. Tubular rollers e are adapted to be wedged in tapering recesses between a disclike driven member a keyed to the shaft b and an annular driving gearwheel c. Rods g pass axially through the rollers e and connect cheek-plates f disposed on either side of the clutch elements. Notches j, k, l formed in the peripheries of the cheek-plates are adapted to be engaged by a pawl or detent m whereby the rollers e are retarded and disconnection effected whilst the annular gear c continues to rotate. The pawl m is carried by a shaft n which may be rocked (by hand) to restart the machine. A roller p in an oppositelyinclined recess may be provided to prevent overrunning.
Patent GB-502721-A (GB)
Title: Improvements in or relating to dies for making nails, pins or the like
IPC: B21G3/28
Filed: 1938-04-26
Abstract: 502,721. Forging nails &c. WERNER, I. April 26, 1938, No. 12455. [Class 83 (iv)] Dies used in making wire nails and the like are polygonal faced as shown in Fig. 1, the faces being provided with central grooves 21 of semicircular form which co-operate as indicated at 20. The grooves when worn are replaced by turning the dies. Masking pins or keepers 21 are used to protect the grooves 21 when not in operative position. The drawings with the Specification also show pentagonal dies.
Patent GB-911951-A (GB)
Title: Process for the production of high molecular weight linear polycarbonates
IPC: C08G64/22
Filed: 1960-04-07
Abstract: Linear polycarbonates are made by first producing a polycarbonate having an average molecular weight higher than desired and then degrading it to produce a polycarbonate of the desired molecular weight and having a narrower molecular weight distribution than the nondegraded polycarbonate.  Degradation may be effected (a) by hydrolysis, e.g. with aqueous sodium hydroxide and possibly triethylamine; (b) by alcoholysis, e.g. with an aqueous alcohol; (c) by phenolysis, e.g. with a monohydric phenol; or (d) by transesterification, e.g. with diphenyl carbonate or the bis-carbonic acid phenyl ester of bisphenol-A.  Processes (c) and (d) may be effected in an extruder.  In Examples (2) Phosgene, bis-phenol A and p-tertiary butyl phenol were reacted in the presence of aqueous sodium hydroxide to produce a polycarbonate which was degraded by adding triethylamine and further p-tertiary butyl phenol to the reaction mixture and kneading; (3)-(5) The polycarbonate of bis-phenol A dissolved in methylene chloride or anisole was degraded by reaction with methanol and triethylamine, or the biscarbonic acid phenyl ester of bis-phenol-A and antimony trioxide, or sodium hydroxide solution.
Patent GB-691527-A (GB)
Title: Improvements in arc welding flux compositions and methods of making same
IPC: B23K35/362
Filed: 1949-05-10
Abstract: A flux composition for use in arc welding as a layer deposited along the line to be welded, comprises dry fluxing material in finely ground state, agglomerated in uniformly distributed condition into free flowing granules by means of a substantially anhydrous binder of sodium or potassium silicate or both.  The fluxing material may comprise one or more silicates of manganese, calcium, magnesium, aluminium, titanium and iron or the corresponding oxides or carbonates together with silica, and a small amount of calcium, sodium, aluminium or sodium-aluminium fluoride.  Naturally occurring silicates such as asbestos, blue asbestos, clay or nephilite or synthetic silicates such as open hearth slag or portland cement may be used.  The powdered fluxing materials are mixed with the minimum quantity of binder containing sufficient water to be liquid and the mixture dried at a temperature below the fusing point of the ingredients and ground.  Killing agents such as silico-manganese, ferro-manganese, ferro-silicon and aluminium may also be present. Specification 614,182 is referred to.
Patent GB-220358-A (GB)
Title: A process of separating zirconium and hafnium
IPC: C01G25/04
Filed: 1923-05-09
Abstract: Materials containing zirconium and hafnium such as crude zirconia or the mineral alvite are treated to produce a mixture of double fluorides such as 2KFZrF4 and 2KF.HfF4 or the corresponding acids 2HFZrF4 and 2HF.HfF4 and the separation of the hafnium and zirconium is then effected by fractional crystallization in presence of hydrofluoric acid and preferably also in presence of excess of the cathion, that is of a potassium salt when the potassium double fluorides are employed.  The mixed double fluorides may be obtained by fusing crude zirconia with potassium bifluoride, or by dissolving in hydrofluoric acid and then adding potassium bifluoride, or by fusing with a suitable medium and then adding a fluoride, bifluoride or hydrofluoric acid.  In an example, alvite is fused with potassium bifluoride and the product dissolved in a solution of hydrofluoric acid and potassium fluoride.  The impurities such as titanium niobium, tantalum or the like are preferably removed first by any known method, and the solution is allowed to cool when most of the fluorides separate as a crystalline mass. The crystal mass is poorer in hafnium than the original solution, so that the mother-liquor is comparatively rich in hafnium.  The separation is completed by repeating the fractional crystallization as often as necessary.  The hafnium-potassium fluoride may be converted into any other hafnium compound and then into the metallic state by any method known for zirconium; for instance, an excess of a base may be added to a solution of the double fluoride, the precipitated hafnium hydroxide calcined to oxide, and the oxide converted into chloride by heating in chlorine and carbon tetrachloride and the chloride reduced to metal as in the case of zirconium chloride.  The crystal mass above-mentioned can be freed from its content of hafnium by dissolving in hydrofluoric acid and crystallizing so as to obtain the pure zirconium potassium fluoride, leaving the hafnium in solution.
Patent GB-1081862-A (GB)
Title: A new or improved chuck
Inventor: CULLY RAYMOND JAMES RUSSELL
IPC: B23B31/117
Filed: 1965-03-24
Abstract: 1,081,862. Chucks. BRYANT SYMONS & CO. Ltd. March 23, 1966 [March 24, 1965], No. 12501/65. Heading B3B. A fluid-pressure suction-actuated chuck comprises an annular resilient clamping member 3 that grips the article, e.g. a piston 37, being machined by radial deformation when a sleeve 4 is moved axially by the suction to compress the clamping member 3. The suction also draws the article into the chuck body before the full clamping effect is generated. A groove 12 on the chuck body 1 is filled with grease to provide the seal between the chuck body and the movable sleeve 4. The chuck may be adapted for holding non-circular articles.
Patent GB-542943-A (GB)
Title: Improvements in the manufacture and production of artificial threads, filaments and the like
IPC: D06M11/52
Filed: 1940-08-02
Abstract: 542,943. Artificial filaments &c. ; resinous condensation products ; proofing permeable materials. COURTAULDS, Ltd., and WILSON, D. L. Aug. 2, 1940, No. 12528. [Classes 2 (ii) and 2 (iii)] [Also in Group VIII] Filaments, threads, and the like of polyvinyl alcohol are rendered more resistant to the solvent or other harmful action of water or aqueous solutions including solutions of acids and alkalis, by treating them with organic or inorganic acid chlorides. The acid chlorides may be used alone or diluted with a suitable solvent. Thionyl chloride, sulphuryl chloride, phosphorus trichloride, acetyl chloride, or benzoyl chloride, may be used. The process may be carried out in association with other treatments, e.g. treatment with formaldehyde solution. In an example, polyvinyl alcohol filaments are immersed in a solution of thionyl chloride in carbon tetrachloride for several hours. They are removed, washed in carbon tetrachloride and then in boiling water. They are rendered resistant to boiling water, boiling 15 per cent. sulphuric acid, 4 per cent. hydrochloric acid, strong ammonia solution, and 4 per cent. caustic soda. They contain combined sulphur and chlorine. Specification 542,942 is referred to.
Patent GB-633340-A (GB)
Title: Tripping mechanism for the latches of drop bottom doors on dumping waggons
IPC: B61D7/16
Filed: 1946-04-25
Abstract: 633,340. Automatic catches. SANFORD, H. W. April 25, 1946, No. 12549. [Class 44] [Also in Group XXXII] A latch 15 on a lateral shaft 17 at the rear of a dumping wagon (see Group XXXII) is spring pressed to a position in which it supports a drop bottom door 10 by means of a member 14 on the door which engages a concave surface 19 on the latch. The line of action of the force between the latch 19 and the member 14 is so directed as to hold the latch engaged. As the wagon moves forwardly (to the right in Fig. 3) a member 38 upstanding from the track engages the latch 15 by its surface 16 automatically to disengage the latch. A rod 20 on the latch 15  provides for its manual disengagement.
Patent GB-349253-A (GB)
Title: Improvements in or relating to picture telegraph, television and like receivers
IPC: H04N7/06
Filed: 1930-04-23
Abstract: 349,253. Television and copying telegraphy receivers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London. - (Assignees of Ranger, R. H. ; 574, Parker Street, Newark, New Jersey, U.S.A.) April 23, 1930, No. 12599. Convention date, May 3, 1929. [Class 40 (iii).] The invention comprises arrangements of apparatus by which the output of each of a number of glow discharge devices, simultaneously influenced by received signals, is directed to adjacent elemental areas of a picture receiving surface. Light beams a .. e emanating from glow discharge lamps 2 .. 10, simultaneously influenced by received signals, are directed through adjustable openings 14 .. 22 of a diaphragm and the middle beam c passes without deflection through a square prism 36 to a prism 44. The other beams are reflected from prisms 24 .. 30 and 32 .. 40 to the prism 44 from which the five beams are reflected at the surface 46 to pass through condensing lenses 48, 50 to adjacent elemental areas 52 .. 60 of a record surface 62 carried on a rotating drum 64, moved in a longitudinal direction. The beams a .. e emanating from the prisms 32 .. 40 may pass through a lens and be projected upon scanning means so as to trace in a number of independent paths an image on a receiving screen.
Patent GB-1174305-A (GB)
Title: Improvements in or relating to Biguanides
Inventor: SCHENKER ERHARD
IPC: C07D209/52
Filed: 1967-03-17
Abstract: 1,174,305. Biguanides. SANDOZ Ltd. 17 March, 1967 [13 April, 1966; 28 Dec., 1966], No. 12700/67. Heading C2C. Compounds of the general formula and their salts, wherein R is H or 1-4 C-alkyl are prepared either by heating a compound of the formula with a compound B-NH-R where one of A and B is H and the other is an N-cyanocarboxamidine radical in the presence of at least one equivalent of an acid or (when R is H only) reacting compound II (A=H) with a pyrazole derivative of the formula wherein R 1  and R 2  are H, 1-4 C alkyl, aryl or aralkyl radicals, in a suitable solvent and in the presence of at least one equivalent of acid. N<SP>1</SP> - leyano - 3 - azabicyclo[3,2,0] - heptane - 3- carboxamidine is prepared from 3-azabicyclo [3,2,0]heptane, HCI and Na dicyanimide and N - guanyl 1 - pyrazole - carboxamidine from 1 - pyrazole-carboxamidine and triethylamine. Pharmaceutical compositions comprise the compounds I and an inert carrier. The compounds which are useful as antidiabetic agents are administered orally in the usual forms.
Patent GB-119448-A (GB)
Title: Improvements in and relating to Radiators for Heating Buildings and the like.
Inventor: CARDELL OLOF VALFRID
IPC: F28D1/03
Filed: 1918-08-06
Abstract: 119,448. Cardell, O. V. Sept. 24, 1917, [Convention date]. Radiators.-Relates to radiators made of two metal sheets 1, 2, Fig. 3, welded together and each cut out of a rectangular blank 3, Fig. 4, to such a shape that it forms one of the side surfaces of the radiator after being bent in a suitable way. The line 4, Fig. 4, shows the shape to which the blank must be cut to form a radiator of ordinary appearance. According to the inven tion, the ribs between the sections of the radiator are riveted together except at the top and bottom, where they are bent to form the communication openings between adjacent sections Instead of one sheet for each side, two or more sheets may be used; for small radiators, one sheet may be used to form both sides.
Patent GB-186954-A (GB)
Title: Improvements in and relating to means for switching on and off the supply of current to an electric motor
IPC: H01H50/32
Filed: 1922-02-04
Abstract: 186,954. Sugden, C. Feb. 4, 1922. Electrically-tripped switches.- A switch for use, for example, in electric motor circuits is tripped by means of a solenoid 3 releasing through a pivoted detent 2 a gravity-actuated lever 5. On falling, this lever strikes the arm f of a horizontal lever 6 pivoted at g, on which is another catch h engaging a projection h<1> on one 7 of a train of spur wheels. A tensioned spring 8 then rotates the spur wheels and by means of a stop k on the wheel 12 restores the lever 5 to its original position. Simultaneously the bridges x, x<1> on the shaft 9, which is attached to the wheel r, break contact between the contact members y, y<1>. To reclose, the solenoid 3 is de-energized, and the handle 10 is rotated until the catch h engages the projection h<1> to hold the switch closed. Thus the tripping mechanism is reset simultaneously with the opening movement of the contact arms,
Patent GB-559025-A (GB)
Title: Improved means for controlling the operations of the cooling gills of air-cooled aero-engines
IPC: F01P7/02
Filed: 1942-09-09
Abstract: 559,025. Automatic control systems for A.C. engines; temperature responsive elements. BRITISH THERMOSTAT CO., Ltd., and HURST, W. F. F. MARTIN-. Sept. 9, 1942, No. 12727. [Class 38 (iv)] [Also in Group XIII] Cooling.-The gills 1 of the cowling of an aircraft engine are adjusted in accordance with the temperature of or near the cylinder 4 of the engine by a switch 10, 11, 12 energizing an electric motor 19 driving a gear box 39 connected to the gills, and a cam 17 whereby the switch is actuated to interrupt the circuit in certain defined positions of the gills, and also means 20 whereby the motor circuit is interrupted at the limits of movement of the gills. Phials 5 at each cylinder are connected by tubes to a common chamber 7 connected by a further tube to a metallic bellows 9 whereby the elements 11, 12 of the switch are actuated against a spring 14. If the phials are "solid" filled the response of the system will be according to average cylinder temperature but if the vapour pressure of a fluid is utilized the system responds to the temperature of the hottest cylinder. The invention may however be arranged to operate at the temperature of any one cylinder or at the mean temperature of the air leaving the hottest or any one cylinder. The system includes selectively-operated relays 29, 30 which short circuit the motor when both are de-energized. A switch 35 provides an off position and manual control of the motor circuit. The Specification describes in detail the construction of the control switch mechanism which includes a shaft carrying the cam 17 and tappets for actuating the limit switches which shaft is driven through a friction clutch and reduction gear from the motor shaft. A lug on the driven element of the clutch co-operates with adjustable screw stops to define the extent of the motion of the said shaft and prevent damage to the switch from over-run. The mechanism 9 ... 23 is installed in the gear box 39. The cam 17 described has five concentric surfaces of progressive radius.
Patent GB-568637-A (GB)
Title: Method and apparatus for electric induction heating of articles
IPC: H05B6/40
Filed: 1943-08-07
Abstract: 568,637. Electric induction heating. ELECTRIC FURNACE CO., Ltd. (Ohio Crankshaft Co.). Aug. 7, 1943, No. 12775. [Class 39 (iii)] [Also in Group II] An inductor for heating gear teeth 6, 7, 8 comprises a U- shaped loop. 1, 2; 3 inserted in tooth spaces so as to embrace one or more teeth. With frequencies of 1,000-2,000, the sides of tooth 6 are heated more than teeth 7, 8. If the frequency is of the order of 100,000, effective heating current is generated in the surfaces of teeth 7, 8. The spacing of the loop from the tooth surfaces is varied in accordance with the frequency, and the space between the conductor and the tooth surface may vary at different points to control the heat distribution. Quenching is effected by perforated conduits 9, 10. The loop may be hinged at 12 so that it may be swung out of position during hardening. An inductor of multiple U form may be employed to heat several teeth. A multiple turn inductor. Fig. 6, may have the turn 25 narrower than the turn 27. Specification 472,198 is referred to.