baber/WOPTO huggingface dataset:
Patent GB-508741-A (GB)
Title: Improvements in and relating to electrical resistance welding
IPC: B23K11/26
Filed: 1938-06-30
Abstract: 508,741. Control systems for resistance welding ; rectifying alternating current. BERGHAUS, B. June 30, 1938, Nos. 19403 and 19404. Convention dates, June 30, 1937 and April 8, 1938. [Classes 38 (ii) and 38 (iv)] In a method of resistance welding a choke 15 is arranged in series with the welding transformer 5 and is provided with a D.C. saturating winding 17, control of the welding period and intensity being effected by controlling the magnitude and time of flow of the D.C. in winding 17. In one system, Fig. 1, the welding transformer 5 is supplied from a high or medium frequency generator 1 which supplies the winding 17 through a mercury vapour rectifier 20 normally biassed off by a battery 35. The motor 23 driving the generator 1 is arranged to drive a number of contact discs 27, 28, 29, 30, 32, 33 through change speed gears 24, 31, battery 36 being periodically connected in the grid cathode circuit through contact discs 29, 30, 32, 33 to render the rectifier 20 conductive for suitable short periods. The duration of the welding periods can be varied by variation of the position of the discs 29 or 30 or through the change speed gear 24. The switch 13 is closed to short-circuit the primary 11 of transformer 5 during the rest periods and the switch 38 can be opened to stop welding. The switch 13 may be replaced by a switch in the primary circuit. The magnitude of the direct current can be controlled by varying the voltage applied to the rectifier or by grid control. In another system the winding 17 is connected across a condenser 44, Fig. 2, arranged in series with the rectifier 42 and resistance 43. A condenser 54 is charged through an auxiliary rectifier 56 and on closure of the key 53 discharges through discharge device 52 when this device is fired by a potential peak from transformer 50 the potential of the grids 78, 79, 80 of the main rectifier 42 being then raised to permit passage of current to energize winding 17. The key 53 may be operated by hand or by a mechanical drive. The time of welding can be adjusted by the phase shifting device 47 supplying transformer 50 when the welding period is less than the time of a half cycle. In an alternative system the key 53 is replaced by a swinging lever operated by an eccentric driven by a synchronous motor through a changespeed gear. The motor may also be arranged to drive a switch for short-circuiting the transformer 50 through another change-speed gear.
Patent GB-1131695-A (GB)
Title: A process for improving the adhesion of rubber mixtures to textile fabrics
Inventor: KLOTZER ERHARD
IPC: C08K3/34
Filed: 1967-04-27
Abstract: 1,131,695. Rubber textile laminates. DEUTSCHE GOLDUND SILBERSCHEIDEANSTALT. 27 April, 1967 [6 July, 1966], No. 19434/67. Heading B5N. [Also in Division C3] To improve the adhesion of natural or synthetic rubber to textile fabrics, resin-forming components comprising an aldehyde or aldehyde donor and a phenol or amine are intimately mixed with a filler comprising extremely finely divided active silica and/or aluminium silicate and/or calcium silicate and/or calcium carbonate by grinding or adsorptively by applying the resin-forming components in solution in a solvent, working the resultant mixture into a rubber sheet and vulcanizing the thus prepared rubber sheet on to a textile fabric. The resinforming components are preferably resorcinol and hexamethylene tetramine, the weight ratio of resin-forming components to fillers being from 1: 5 to 5:1. Resorcinol may be ground with the filler, preferably silica, on a mill and the resulting master batch worked into a rubber mixture containing the hexamethylene tetramine. Alternatively resorcinol is applied in solution to the finely divided fillers and the resulting product is worked into the rubber mixture. The hexamethylene tetramine is either ground with the filler or applied by adsorption in the form of an aqueous solution, and the resulting product is worked into rubber with the master batch of resorcinol and silica.
Patent GB-669424-A (GB)
Title: Improvements in or relating to the manufacture of bindings or trimmings
IPC: B29C65/00
Filed: 1949-07-25
Abstract: 669,424. Trimmings. STEAD & SIMPSON, Ltd., and BEEBY, R. W. July 7, 1950 [July 25, 1949], No. 19496/49. Class 141. A method of making a binding strip, particularly for shoe vamps, includes applying a stiffening medium or adhesive to the central longitudinal portion 2, Fig. 5, of a web 1 preferably woven and having twice the width of the required strip, in which central portion are formed, either previously or subsequently, a series of transverse slots 5, and cutting the web longitudinally along the median line to form the two strips. Each strip has a series of stiffened teeth 22 facilitating its attachment to curved parts. Reinforcing threads 3 may be provided along the edges of the central portion which may comprise cotton warps, there being silk warps on either side and a continuous cotton weft thread. Apparatus for providing the transverse slits may comprise a fluted wheel 6, Fig. 3, having cutting edges 8, and a bed roller 7 which rotate in opposite directions, the web 1 being fed between the two and supported by a slotted plate 9 and tubular guide 10. Adhesive may be applied to the back of the central portion 2 of the web by means of an extrusion nozzle. The web may be divided longitudinally by passing it between a cutting disc and a bed roller in a similar manner to that described for forming the transverse slits. In a modified method, the transverse and longitudinal slits are formed simultaneously by the use of a suitable cutting wheel, the coated web preferably being heated to soften the stiffening agent and cause the teeth to adhere together. In a further modification, the slits may be formed by the omission of certain warps and wefts during weaving of the web, the central portions of spaced groups of weft threads being treated with the stiffening medium. A narrow strip of thin elastic material. may be provided to cover the central portion before it is coated, this providing each binding strip with an elasticated edge. According to the Provisional Specification, the slots may be produced by a reciprocatory wedge-shaped slotter.
Patent GB-499010-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F30/12
Filed: 1938-07-01
Abstract: 499,010. Transformers. BRITISH THOMSON -HOUSTON CO., Ltd. July 1, 1938, No. 19588. Convention date, July 1, 1937. [Class 38 (ii)] In a polyphase transformer the phase wind ings 1, 2, 3, Fig. 2, are arranged in planes which form the sides of a prism, adjacent limbs of the windings being surrounded by iron cores 4, 5, 6. The cross-sections of the windings are arranged so that the resultant sections surrounded by the cores are circular. In a modification the windings are arranged so that the resultant sections are rectangular. The cores may be formed by metal strip wound in spiral form, or may be built up from flat plates, or may be formed from metal rings through which the windings are threaded, or may be formed from a number of single turn strips 7 as shown in Fig. 7.
Patent GB-378614-A (GB)
Title: Improvements in and relating to machines for treating textile materials, such as hanks or skeins of yarn
IPC: D06B5/20
Filed: 1931-07-07
Abstract: 378,614. Treating yarns with liquids. SMITH, DRUM & CO., Allegheny Avenue, Philadelphia, U.S.A.-(Assignees of Drum, G. E. and Jaxheimer, W. H. ; Allegheny Avenue, Philadelphia, U.S.A.) July 7, 1931, No. 19601. Convention date, April 21. Addition to 350,556. [Class 15 (i).] Textile materials such as hanks or skeins of yarn are treated with liquids while supported on hollow fixed supports 16 from which the liquid flows through slits 17 or perforations which may be similar in construction to those described in the parent Specification, and the position of the hanks &c. on the supports is altered by rods 54 mounted to rotate round the axis of the supports, the rods 54 being covered by rotatable sleeves 56 so that friction on the threads during lifting is eliminated. The rods may be rotated singly by a handle 55 or all together by a handle 137 or automatically by a motor 40 which rotates a shaft 98 geared to a shaft 65, worms 64 and worm gears 63. Means are provided for periodically disconnecting and connecting the shafts 98, 65 to give periodic rotation of the rods. In dyeing operations it is of advantage to alter the speed at which the lifting rods are rotated and this is effected by providing two clutch elements 106, 108 on the shaft 98 so that by movement of the U-shaped member 111 the drive is obtained from the shaft 38 through a chain and large sprocket 104 or through a chain and small sprocket 105. Liquid is pumped to the supports through a manifold 24 being heated during its circulation by a heater 35.
Patent GB-743026-A (GB)
Title: Improvements in and connected with machines for making concrete blocks, slabs and the like
Inventor: WILKINS JOHN STANLEY
IPC: B28B1/04
Filed: 1953-07-15
Abstract: 743,026. Moulding concrete blocks. C. W. T. INDUSTRIES, Ltd. July 13, 1954 [July 15, 1953], No. 19627/53. Class 87 (2). In a machine for moulding concrete blocks or slabs, such as the machine described in Specification 627,895, the mix is highly compressed by tamping plate 23 which is forced down on the mix by claws 39 which are pulled down by hand lever 46 operating through linkage 45, 42 and 40. In operation, a mould 1 is filled from a hopper 29 having a charging box 72 movable on wheels 74 into a position over the mould. The tamping plate 23 mounted on frame 36 which is pivoted at 37 and has a counterpoise weight 38, is then lowered and the mix is tamped and then highly compressed by the means described above. During compression lever 46 rotates a ratchet 35 by a guided rod 50 connected to a lever 68 on shaft 67 so that sprocket 33 rotates chain 32 and sprocket 31 to move conveyer. 19 forward to leave a space for the block to be ejected. The movable side 3 is then moved down by pedal 12 and an abutment 65.thereon engages a rod 48 connected to claw lever 40 and thus disengages frame 36. Finally, the side 4 is moved forward by lever 18 to eject the block.
Patent GB-236405-A (GB)
Title: Improvements in paddle-wheels, or agitating devices, for use in agitating fabrics inliquids
IPC: D06B23/00
Filed: 1924-08-19
Abstract: 236,405. Johnson, J. Y., (Smith, Drum, & Co.). Aug. 19, 1924. Agitating materials and liquids together. - A paddle-wheel for use in dyeing &c. machines comprises endplates 2 secured to hubs 3 on a shaft 1 and having fixed to their inner sides angle-bars 4 to the inwardly projecting flanges of which are secured vanes 5, rollers 6, journaled on the end-plates 2, being freely rotatable at the outer edges of the vanes 5. Each roller 6 consists of a tube 7, the opposite ends of which carry roller bearings 8 journaled on a cross-rod 9 having reduced extremities 10 projecting through guard plates 11 and the end-plates 2 or threaded for the reception of semi-circular nuts 12.
Patent GB-933446-A (GB)
Title: Diode parametric amplifier
Inventor: AITCHISON COLIN STUART
IPC: H03F7/04
Filed: 1960-06-03
Abstract: 933,446. Parametric amplifiers. MULLARD Ltd. June 3, 1960, No. 19761/60. Class 40 (9). A parametric amplifier comprises a length of coaxial line A and three independently-adjustable tuning devices K, F, E for tuning the coaxial line to resonance at signal, pump and idler frequencies and a voltage dependent reactor C such as a crystal diode connected between the inner and outer conductors. Figs. 3, 4 and 5 show the voltage distribution for the signal, pump and idler frequencies. Tuning to the idler frequency is first effected by moving a short-circuiting plunger E. The pump frequency is injected by a probe G at a position corresponding to a voltage node at which position the capacitative probe for tuning to the pump frequency is located. The pump frequency tuner F is also located as near to a voltage node of the signal frequency as possible. Thus adjustment of this tuner effects the tuning of the other frequencies only very slightly. The signal input probe H, the signal output probe J and the capacitative probe K which effects the tuning at the signal frequency are located near the voltage nodes of the pump frequency and the idler frequency for minimum interference with the tuning for these frequencies. The coaxial line may be of any odd number of quarter wavelengths of the signal frequency and use plunger tuning as shown, or may be of an even number of half wavelengths, the left-hand end being then open-ended and tuned by a variable capacitor.
Patent GB-1317418-A (GB)
Title: Adjustable control console for vehicles
IPC: B60K37/00
Filed: 1972-04-28
Abstract: 1317418 Controlling vehicles CATERPILLAR TRACTOR CO 28 April 1972 [3 May 1971] 19924/72 Heading B7H An adjustable control pedestal 17 for vehicle includes a base secured to the vehicle floor 11, a pair of upright links 19, 22 pivoted to the base at 21, 23, a platform link 24 pivoted to the links 19, 22 at 26, 27, and which carries a control element, e.g. steering wheel 14, and means for latching the pedestal 17 against pivoting at any one of a plurality of inclinations, the arrangement being such that the orientation of the platform link 24 relative to the base remains fixed as the pedestal is tilted as shown in Figs. 2, 5. Preferably the links 19, 22, 24 are arranged in a true parallelogram configuration as shown in Fig. 5, but the desired parallelogram action may be closely approximated over a limited arc by the trapezium configuration shown in Fig. 2. In a first latching means (Fig. 4), a pair of arms 58 are pivoted to link 19 and have a plurality of notches 59, one pair of which are selectively engaged with rod 56 fixed to link 22. A pair of rocker arms 62 are pivoted on the rod 56 and carry at one end a rod 64 which passes through slots 66 in arms 58. The other end of arms 62 have an extension 61 which engages a rod 67 carried by the arms 58. A bail member 54 is fixed to the rocker arms 62 and movement of the bail 54 in either direction will tilt the rocker arms 62 to release the rod 56 from the notches 59. Further movement of the bail 54 will then tilt the pedestal 17 until the desired position is reached, the bail 54 then being released so that the rod 56 again engages one pair of notches 59. In a second latching means (Fig. 5), a notched bar 78 is pivoted to the link 22<SP>1</SP> and is held in engagement with pin 82 by spring 83. The latch can be released to tilt the pedestal by moving bail member 84 away from steering wheel 14<SP>1</SP>. The steering wheel 14 (Fig. 2), is connected by shaft 33 to a hydrostatic steering unit 34 mounted in housing 37. The inclination of housing 37 on the platform link 24 can be adjusted by slot 40 and clamp 39 connection. Other control members e.g. levers 44 (Fig. 2), or switches 73 (Fig. 5), may be carried by the pedestal 17.
Patent GB-478281-A (GB)
Title: Improvements in and relating to apparatus for washing plates, dishes and other utensils
IPC: A47L15/23
Filed: 1936-07-20
Abstract: 478,281. Dish - washing machines. SMITH, R. July 20, 1936, No. 20085. [Class 138 (i)] Washing-apparatus for plates, dishes, cutlery, and the like comprises openwork stationary supporting means for articles to be cleaned, the articles being subjected to jets of water of substantially cylindrical form which are directed downwardly, upwardly, and inwardly from nozzles on a rotor power-driven slowly in a single direction, and are produced by a power-driven pump. In the construction shown, a container a is provided with a rotatable nozzle system comprising three pairs of arms rotatable about a central vertical axis. The arms are in a common plate, the lower pair being bent as shown. The arms are rotated by a motor 2 which also drives a pump s supplying liquid to the nozzles from a sump c. The liquid may be heated by means of an immersion heater 7. Water issues from the nozzles in solid jets of substantially cylindrical form. The dishes are supported on platforms, the lowermost one of which is composed of concentric rings 14, 15, 16 rigid with radial bars 17 and a series of hooped bars 18, for carrying plates in substantially radial planes. The platform has feet 19 permitting rotation to facilitate loading and unloading. After the articles have been washed, water is discharged from the sump c and the articles are dried by means of air which enters the casing by inlet openings e, is heated by the heater 7, and escapes through the pipe 25.
Patent GB-1431014-A (GB)
Title: Polycarbonate compositions
IPC: C08L27/00
Filed: 1973-04-27
Abstract: 1431014 Polycarbonate compositions UNIROYAL Inc 27 April 1973 [3 May 1972] 20133/73 Headings C3R and C3P A composition comprises (a) from 75 to 99% by weight, based on (a) + (b), of a polycarbonate, and (b) from 1 to 25% by weight, based on (a) + (b), of a vinylidene fluoride-hexafluoropropylene copolymer. Preferably the copolymer consists of from 70 to 30% by weight vinylidene fluoride units and 30 to 70% by weight hexafluoropropylene units. The polycarbonate used in the examples is derived from bisphenol A.
Patent GB-314995-A (GB)
Title: Improvements in or relating to colour photography
IPC: G03B33/10
Filed: 1929-07-01
Abstract: 314,995. Soc. franchise Cinechromatique ProcÚdÚs R. Berthon, (Assignees of Soc. Civile pour l'Etude de la Photographie et de la Cinematographie en Couleurs). July 6, 1928, [Convention date]. Colour filters.-A tricolour selector filter for use in conjunction with the taking or projecting objective employed in the Berthon process of colour photography with lenticular films, as described, for example, in Specification 10611/09, [Class 98 (ii), Photographic processes &c.], comprises four parallel colour bands of which the two outer are of the same colour. The filter may comprise, for example, a violet band on each side, with red and green inner bands. The bands may be formed of dyed gelatin, celluloid, &c., or may take the form of coloured liquids contained in juxtaposed cells.
Patent GB-621946-A (GB)
Title: Improvements in or relating to machines for agricultural or like purposes
IPC: A01C17/00
Filed: 1946-05-27
Abstract: 621,946. Agricultural machines. DEVENISH, J. E. B. May 27, 1946, No. 20156/47. Divided out of 621,895. [Class 6(i)] Relates to machines for agricultural and like purposes comprising a wheeled frame and a part driven from a ground wheel through a dog-clutch, the clutch members being relatively slidable axially to effect mutual engagement. According to the invention, the dog-clutch members are mounted internally of the hub of the ground wheel and means, mounted externally of the hub, is provided for effecting engagement of the clutch members. A spreading machine as decribed in Specification 621,895 has a dog-clutch member 14 connected to the spreader disc and engaging with a complementary formation 15 on the wheel hub. The spreader disc is carried by a boss on a spigot rotated through a differential, provided in the axle assembly, by the ground wheels. The inner end of one half-shaft 11 is in sliding splined engagement with its associated bevelled gear in the differential and the outer end carries a toothed plate 14 forming one member of a dog-clutch, the second member consisting of recesses 15 in the internal radial wall of the hub plate 16. An extention 19 of the half-shaft 11 projects through the hub-plate 16 and is provided with a hand-grip 20, a pull on which brings the dog-clutch members into engagement. To break the drive the handle-grip is pushed inwards, a spacer ring 17 holding the hub plate away from the spacer block 18 to provide for dis-engagement of the clutch.
Patent GB-419129-A (GB)
Title: Improvements in connection for coupling filling hose to underground tanks
IPC: F16L37/113
Filed: 1934-07-11
Abstract: 419,129. Pipe couplings. WHEATON, A. W., 77, Durand Road, Maplewood, New Jersey, U.S.A. July 11, 1934, No. 20359. [Class 99 (i).] In a coupling for connecting hose pipes to underground tanks a socket 3 has a gasket 6 which is retained on the ledge 4 by an overhanging shoulder 5. The hose is attached to a spigot member 11 having a flange 13. An annular rib 14 on the underside of the flange seats on the gasket. The spigot has notches 17 which engage lugs 7 to hold it against rotation. Lugs 21 on a locking ring 18 enter the socket through slots 10 and engage inclined surfaces 9 when the ring is rotated. A pair of opposite lugs 20 on the ring bear on the flange 13 allowing the ring to pivot slightly so as to maintain even pressure on the gasket.
Patent GB-1263943-A (GB)
Title: Process for producing pigment compositions
Inventor: GRAY ALAN
IPC: C09B67/20
Filed: 1969-04-22
Abstract: 1,263,943. Preparation of polymer/pigment compositions. CIBA GEIGY (U.K.) Ltd. 21 April, 1970 [22 April, 1969], No. 20449/69. Heading C3P. [Also in Division C4] A process for preparing a pigment composition comprises: mixing an aqueous presscake of pigment with an aqueous dispersion of an emulsion copolymer of styrene and one or more alkyl acrylates or one or more alkyl methacrylates, in which the alkyl group has 1-12 carbon atoms, the polymer particles being of size 0À02 to 1À0 Á and the copolymer containing 70 to 30 pts. by wt. of styrene units and, correspondingly, 30 to 70 pts. by wt. of (meth)- acrylate units; coagulating the mixture at a temperature of from ambient to the boil; removing the aqueous phase from the coagulum; kneading the plastic mass; and cooling and pulverizing the resulting solid mass to a powder. The process is preferably carried out using a styrene/ethyl acrylate copolymer, in a twin blade internal mixer or kneader. Coagulation may be effected by the addition of an acidic electrolyte such as HCl or H 2 SO 4 , by the addition of an acidic, neutral or alkaline salt such as NaCl, CaCl 2 , NH 4 Cl, KHSO 4 , Na 2 SO 4  or (NH 4 ) 2 SO 4 , or by the addition of a surface active agent which dissociates to give a major amount of ions of opposite charge to those obtained from the emulsifying agent used in producing the polymer. After coagulation the mixture is preferably heated to 90-100‹ C. whereby the coagulum melts to form a plastic mass, and the aqueous medium is decanted off. Kneading is carried out at at least 60‹ C. for a sufficient time to deagglomerate the pigment and disperse it uniformly. The pigment compositions thus formed may be used to pigment inks or lacquers based on for example polyvinyl chloride, nitrocellulose, or zinc resinate, polymeric thermoplastic materials such as polyvinylchloride, polystyrene, ABS terpolymer or cellulose triacetate, in amounts of from 1 to 10% by wt. based on the ink, lacquer or thermoplastic material. Polyolefins such as polyethylene, polypropylene and copolymers thereof may also be pigmented with 1 to 40% by wt., based on the polyolefine, of the invention compositions.