baber/WOPTO huggingface dataset:
Patent GB-427280-A (GB)
Title: Improvements in reels and spindles therefor in motion picture or other apparatus
IPC: G03B21/32
Filed: 1934-09-19
Abstract: 427,280. Feeding webs. HOWELL, A. S., 6040, Winthrop Avenue, Chicago, U.S.A. Sept. 19, 1934, No. 26985. [Class 100 (i)] [See also Group XX] A spindle for carrying kinematograph or other spools has an axial bore extending from its end, and the spool has an opening engaging the surface of the spindle and an axial projection engaging the bore; either engagement may prevent relative angular rotation. As shown, the spindle has a cylindrical surface 2, and a polygonal bore 3 extending from its end. One side plate 4 of the spool has a circular hole, and the other side plate 5 has a polygonal stud 8 extending into the bore. The spool may be held against a shoulder on the spindle by the cover of the film chamber, or, as shown, by a latch 21 formed by a spring 18 housed in a slot in the spindle. The hole in the plate 4 may be polygonal, and the stud 8 cylindrical, the corresponding parts of the spindle being similarly shaped.
Patent GB-488640-A (GB)
Title: Improvements relating to bricks or blocks for general building and for furnaces
IPC: E04B2/42
Filed: 1936-10-06
Abstract: 488,640. Bricks. MAKRAM, L. T. Oct. 6, 1936, No. 27159. [Class 87 (i)] . [Also in Group XII] A building or furnace brick is provided on its upper face with two or more truncated conical projections a and on its lower face with corresponding slightly larger cavities b. Flanges d<1> are also provided on the upper face and recesses d<2> on the lower face. When the bricks are laid, mortar is poured into holes c and grooves g and enters spaces c2, i to form a continuous horizontal joint. In the rectangular brick shown in Figs. 2 and 3, a groove f is provided in the lower face, and in the curvilinear brick shown in Fig. 11, a similar groove is also formed in the upper face ; in the latter brick, tongues j and grooves k are provided on the end faces. Projections n may be formed on the outer faces of the bricks to space them from an outer structure. Where a wall of two-brick thickness is to be formed, corresponding dovetail projections and grooves may be provided on abutting faces of the inner and outer bricks. Fig. 6 shows a tie-brick for use with bricks as shown in Figs. 2 and 3. this brick comprising two bricks each having one projection a and joined together by an integral connecting portion.
Patent GB-1505042-A (GB)
Title: Apparatus for the preservation of wood
IPC: B27K3/10
Filed: 1976-06-30
Abstract: 1505042 Wood impregnation apparatus SADOLIN & HOLMBLAD A/S 30 June 1976 [3 July 1975] 27247/76 Heading D1P [Also in Divisions F3 and F4] Wood impregnation apparatus is provided with a refrigeration system for condensing solvent vapours e.g. methylene chloride from a post-impregnation vacuum step. The apparatus comprises a thermally insulated storage tank 3 for impregnation liquid, an impregnation tank 1 for containing wood to be treated and provided with heating wires 2, pipes 4, 7 for transferring impregnation liquid from the tank 3 to the tank 1 and vice versa, means preferably comprising a liquid ring (mineral oil) vacuum pump 18 and an ejector 16 for removing vapours from the impregnation tank end introducing the vapours via a tank 19 into first and second condensers 23, 26 connected in series, and pipes 28, 30 for returning condensate to the storage tank. The refrigeration system comprises a compressor 44 having two evaporators 47 and 27. The evaporator 47 is placed in a circuit containing a brine tank 49. Brine is circulated by a pump 48 and may be directed through a cooling coil 24 in the first condenser. The second evaporator is located in the second condenser 26. The compressor is operated to chill the brine in the tank 49 e.g. to -5C during the steps of the impregnation process wherein no vapours are formed. Upon withdrawal of hot vapours from the tank 3 by the pump 18, the compressor is operated to chill the second condenser, the first condenser being chilled by the reservoir of previously cooled brine. A cooling coil 53 connected to the brine tank is provided in an oil reservoir 20 associated with the vacuum pump 18. A condenser 54 dumps heat from the compressor 44 in the storage tank which may be supplementarily heated by a heat exchanger 57. Make-up compound may be added to the recycled condensate in a tank 32. Hot liquid is pumped from the storage tank via the pipe 4 by a pump 6 into the wood-containing airtight impregnation tank which has previously been evacuated by the pump 18. The desired temperature may be maintained using the heating wires 2 and a superatmospheric pressure by closing valve 13. After impregnation is complete, residual liquid is returned to the tank 1 via the pipe 7 and the valve 8 is closed. Valves 13 and 15 are then opened and solvent vapours are sucked into the condensers 23, 26 by the pump 18. Entrained air can escape from the condenser 26 via a pipe 58. Outlets 42, 43 from the condensers 23, 26 are connected to the suction side of ejector 16 mounted in pipe 12 upstream of the pump 18 and downstream of the valve 15, which is a one-way valve, to provide a forced flow of vapours through the condensers.
Patent GB-916477-A (GB)
Title: Improvements in adjustable linkages for a beam-type rail track brake
IPC: B61K7/08
Filed: 1960-08-05
Abstract: 916,477. Railway-track brakes. THYSSEN-HUTTE A.G., AUGUST. Aug. 5, 1960 [Aug. 7, 1959 (3)], No. 27265/60. Class 103 (1). A railway-track brake having a pair of adjustable linkages comprises adjusting rollers 7 supported resiliently on movable saddles 1 by way of pivotable levers 8 and connected to one another by means of two linkage groups 11, 12 extending parallel to the railway track 3, the two linkage groups operating in different directions and connected to one another by means of a double-armed compensating lever 26 mounted on a fixed pivot 27 below the track. The compensating lever 26 is operated at each end by a slidable guide frame 18 for the pistonrod 16 of a double-acting hydraulic cylinder 13 disposed below the linkage. The rods 10, 10<SP>1</SP>, forming part of each linkage group, are connected by means of intermediate member 9 to the pivotable lever 8 which is pivoted at one end to a resilient device in the form of a set of rubber shock-absorbers 6, and pivoted at the other end to a roller 7 which operates in a concave roller track 37 on sliding chain 36 of the movable brake beam 5 to ensure that the adjusting movement of the brake beam is proportional to the movement of the driving linkage. Adjustment is effected by rotation of rods 10, 10<SP>1</SP> which are provided with a screwed connection to threaded pins 49 connected to intermediate members 9. In the embodiment disclosed each brake beam 4 is fixed.
Patent GB-680820-A (GB)
Title: Improvements in high voltage electrical liquid-break circuit breakers
Inventor: VEALE ROBERT HERBERT
IPC: H01H33/14
Filed: 1949-10-24
Abstract: 680,820. Liquid-blast switches. BRITISH-THOMSON-HOUSTON CO., Ltd. Oct. 24, 1950 [Oct: 24. 1949], No. 27273/49. Class 38 (v) In an extra high-tension, oil circuit-breaker four breaks per phase are provided, each break being housed in a separate arc-control chamber and shunted by an impedance. The four chambers are arranged in two pairs, each designated 12, 13, arranged symmetrically to either side of an operating member 34 in a low oil-content tank 10 such as that disclosed in Specification, 626,198. Each pair of chambers 12, 13 and its associated shunting resistance column 15 are supported from a conducting head 19 attached to a lead-in conductor which passes through a bushing 11. The chambers 12 have spring-biased, fixed contact fingers 20 which co-operate with a contact rod 21 having a flanged cap 25 whereby it is biased by a spring 24 to the open position, the cap also serving as a piston in an extension 27<SP>1</SP> to damp the opening movement. The contact 21 is operated by the cross-bar 14 through an insulating rod 16 and a shock-absorbing plug 27 biased by a spring 28. Contact fingers 26 engaging the rod 21 are connected to stationary contacts 29 which co-operate with a contact rod 17 on the cross-bar 14, in the chamber 13. The resistance column 15 may be wound as disclosed in Specification 566,559, (Group XXXVI], and is centretapped to provide two sections 31, 32 shunting the breaker 20, 21 and 29, 17, respectively, the upper end of the resistance being connected to the conducting head 19, the centre-tap to contacts 29, and the lower end to contact rod 17 through contacts 30. In operation the four series breaks 20, 21, 29, 17, open simultaneously and the resistance current is finally interrupted at 17, 30. The Provisional Specification states that the arc-control chamber and resistor of Specification 621,565 may be employed.
Patent GB-620712-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B53/00
Filed: 1946-09-11
Abstract: 620,712. Rotary internal-combustion engines. LAKE, W. L. Sept. 11, 1946, No. 27321. [Class 110(ii)] A rotor 1, for an explosion or compressionignition engine is provided with peripheral pockets 4a between pairs of outwardlysliding vanes. Fuel mixture for an explosion engine is induced from an inlet 8 into a pocket and a crescentshaped space between the rotor and the casing bore 3 and then compressed into a pocket before being fired by a plug 10, or previouslyburnt gases. Expansion takes place in a chamber C and the burnt gases exhausted through an outlet 9. For a compression - ignition engine, fuel is injected through an inlet 29. The rotor has small clearances between its ends and the casing walls. Arcuate packing members 14 are provided. Lubricating oil is admitted through passages 15 by way of centrifugally actuated needle valves which close under spring action when the rotor is stationary. More than one inlet and one exhaust port may be provided. The engine may be started electrically or by compressed air. Lightening holes are placed in the rotor.
Patent GB-835626-A (GB)
Title: Purification of terephthalic acid
Inventor: ROBERTSON JOHN SKINNER MACNAB
Filed: 1957-08-30
Abstract: Terephthalic acid is purified, from coloured and colour-forming impurities, by dissolving the crude terephthalic acid in one or more toluic acids with the assistance of heat, cooling the solution to a temperature about 10 DEG  C. above the melting-point of the solvent whereupon purified terephthalic acid crystallizes out, and separating the pure terephthalic acid from the mother-liquor.  The purification is advantageously carried out in the presence of an inert gas, such as nitrogen.  If desired, periodic acid or lead tetraacetate treatment may be applied to the toluic acid solution prior to crystallization of terephthalic acid.  In an example, 24 parts of pale-yellow terephthalic acid of 94% strength, prepared by the airoxidation of p-xylene using cobalt and manganese bromides as catalysts in propionic acid as the reaction medium, are mixed with 800 parts of o-toluic acid, and heated in an atmosphere of nitrogen until the toluic acid melts, when agitation is commenced.  The temperature is raised to 260 DEG  C., when a clear yellow solution is obtained.  This solution is filtered, and the filtrate is allowed to cool slowly to 120 DEG  C., when terephthalic acid crystallizes out. The crystals are filtered; steam is blown through the crystals to remove o-toluic acid, and the terephthalic acid is then dried.  The product is white and of 97.5% strength.  In Example 2, m-toluic acid is employed as solvent.
Patent GB-602422-A (GB)
Title: Desiccant or dehydrating device
IPC: B01D53/26
Filed: 1945-10-18
Abstract: 602,422. Drying air. PIERCE FOUNDATION, Inc., J. B. Oct. 18, 1945, No. 27377. Convention date, Dec. 21, 1944. [Class 34(i)] A desiccant device comprises a comminuted mass of calcium chloro compound 11, (calcium chloro - hydrosilicate, or calcium chloro hydro-aluminate), in a moisture pervious container of transparent material 12 suspended in supporting wires or tapes 14. Protuberances 15 of cellulose acetate or similar material are fixed at intervals over the surface of the container 12 by a suitable adhesive for the purpose of collecting liquid calcium chloride hydrates which are given off by the desiccant towards the end of its useful life when the moisture absorption is approximately 90 per cent. The liquid calcium chloride collects on the protuberances 15 where it loses water by evaporation and solidifies, and is then prevented from falling into the packing container or on to the articles being dried. Ferric chloride may be added to the desiccant substance to act as an indicator of the extent of moisture absorption. The indicator may be inspected and also compared with a reference chart 16 comprising strips 17, 18 coloured to match the desiccant when dry and when exhausted. U.S.A. Specification 2,255,041 is referred to.
Patent GB-628773-A (GB)
Title: Improvements in or relating to the manufacture of structures in pre-stressed concrete
IPC: B28B23/04
Filed: 1947-10-13
Abstract: 628,773. Reinforced concrete. LESAGE, G. Oct. 13, 1947, No. 27385. Convention date, Oct. 14, 1946. [Class 20(iv)]  Reinforcement for concrete comprises at least two flattened coils 1, 4 with their adjacent ends overlapping and interengaging. The coils are covered, except near their free ends, with a plastic coating which prevents the concrete from adhering to these portions of the reinforcement and permits movement thereof for stressing. The reinforcement is laid in the mould and the concrete poured; after the concrete has set, the free ends of the reinforcement being anchored thereby, wedges 7, 8 are driven into the overlapping loops to tension the reinforcement. Apertures are left through the concrete adjacent the overlapping loops to permit the insertion of the wedges.
Patent GB-1154967-A (GB)
Title: Improved Draw Mechanism for Straight-Bar Knitting Machine
Inventor: SWANWICK BARRY FREDERICK
IPC: D04B11/00
Filed: 1967-06-14
Abstract: 1,154,967. Knitting-machines. S. A. MONK (SUTTON IN ASHFIELD) Ltd. 30 May, 1968 [14 June, 1967], No. 27405/67. Heading D1C. In a draw motion for a straight-bar machine the main draw lever 27 is continuously oscillated during knitting and fashioning and the drive for the thread carriers and slur cam disconnected from it during fashioning. The drive connections 15-6 from the main shaft 10 to the draw cam 14 is maintained when the shaft is shogged, so that the drive is continuous. The draw lever reciprocates a rack 34 which in turn, via pinion 40 freely rotatable on axle 44, reciprocates rack 38 in the opposite direction. A further rack 41 selectively driven from racks 34, 38 drives thread carrier chain wheels 45 and a slur rack 48. A slotted driving block (57 Fig. 4 not shown) affixed to rack 41 is engagable by latches (54, 56) fixed to racks 34, 38 respectively. The latches are moved into and out of engagement with the block by a swinging rail (58) moved by a cam (72) when the cam shaft 10 is shogged for fashioning. When fashioning is to occur the operative latch is disengaged when the rack 41 is at one end of its traverse. After a fashioning when the latch of the other rack is adjacent the drive block, the drive is re-engaged.
Patent GB-825424-A (GB)
Title: Improvements in the construction of metal silos
IPC: B65D88/74
Filed: 1956-09-07
Abstract: 825,424. Silos. AGENIE, J. Sept. 7, 1956 [Sept, 8, 1955], No. 27425/56. Class 20(1) A metal silo has a triple peripheral wall and a double-walled roof to permit the circulation of air. The intermediate wall consists of steel plate panels 1, Fig. 1, supported by Z-shaped uprights 2, Fig. 3, the inner wall consists of inclined plates 5 attached at their upper ends to inner flanges of the uprights and the outer wall is formed of vertical plates 6 attached to outer flanges, the plates 6 being shaped to provide covered apertures in the wall. The roof is in the form of a truncated pyramid and is formed by plates 7 and 8 disposed in spaced relationship to provide roof channels C 2  which are continuous with inner wall channels C between the members 1, 2 and 5, but separate from outer wall channels C 1  between the members 1, 2 and 6. Plates 7 and 8 are joined at their upper ends to concentric shafts 9 and 10 respectively, Fig. 4. The inner shaft 9 has a series of holes 11 at its lower end which connect channels C 2  with the silo interior. A tubular body 12 having an upper reduced part 13, to which is attached a hood 14, is freely operated within the shaft 9 by a lever system 19, 20, 21. Around the perimeter of the hood a cover 16 is fitted having U-shaped leak proof gaskets 17 which sealably engage with shaft 10. A series of inclined slots 18 are fitted to the cover's lower surface to prevent entry of rain into the silo when open. Disinfectant may be supplied to the silo by a valve 15 fitted to the hood.
Patent GB-1394874-A (GB)
Title: Torque converters
IPC: F16H41/26
Filed: 1972-06-13
Abstract: 1394874 Hydrodynamic torque converters TSENTRALNY ORDENA TRUDOVOGO KRASNOGO ZNAMENI NAUCHNO-ISSLEDOVATELSKY AVTOMOBILNY I AVTOMOTORNY INSTITUT 13 June 1972 [8 July 1971] 27467/72 Heading F2C In a hydrodynamic torque converter having an impeller 1 and a turbine 2 the ratio of the length of an impeller or a turbine blade along the outer part 9 of the torus to the length of a blade along the inner part 10 is from 2.15 to 2À85. The ratio of blade angle at the inlet of the impeller wheel 1 at the inner part 10 to that at the output part 9 is from 1À15 to 1À45. The reactor 3 may be mounted via an overrunning clutch, and may be in two parts (Fig. 4a, not shown). The inlet angle of a reactor blade at the midline 12 of the fluid stream is from 60 to 110 degrees, the outlet angle is from 15 to 40 degrees and the number of blades is from 9 to 23, where there is one wheel, and the inlet and outlet angles of the first wheel of two are 115 to 135 and 90 to 110 degreees respectively, and 65 to 90 and 15 to 40 degrees respectively for the second wheel. The number of blades on the first and second wheels are from 21 to 35 and 17 to 33 respectively. The ratio of the blade angle at the inlet of the turbine 2 at the inner part 10 to that at the outer part 9 is 0À5 to 0À9.
Patent GB-926792-A (GB)
Title: Automatic electric circuit-breakers
IPC: H01H71/10
Filed: 1961-06-28
Abstract: 926,792. Automatic circuit-breakers. WESTINGHOUSE ELECTRIC CORPORATION. July 28, 1961 [Sept. 20, 1960], No. 27481/61. Class 38 (5). A circuit-breaker has an operating mechanism including a restrainable member 57 which when released permits automatic contactseparating movement of the mechanism, a latch 141 for restraining the member 57, a tripbar 153 having a peripheral portion normally engaging and holding the latch 141, a trip arm 159 secured to the trip-bar, an armature 95 effective to move the trip-arm 159 and release the latch through a notch 155 in the trip-bar, and an electromagnet 79 to actuate the armature. A member 133 secured to the armature directly engages with the trip-arm 159 and abuts a pin 127 of a current-setting mechanism 126 of the face cam-type. The operating, trip and latch mechanism are supported by a pair of substantially parallel plates so as to form a structural unit. In a three-pole arrangement, a common operating and latch mechanism is disposed in the centre pole and the trip-bar extends through the plates into the outer poles which are provided with nylon trip-arms 169 secured on splined ends 158 of the tripbar 153. These arms 169 extend from sleeves 167 which abut the plates 35 and prevent end movement of the trip-bar.
Patent GB-297989-A (GB)
Title: Compounds of arylene diamines
Filed: 1927-10-17
Abstract: 297,989. Imperial Chemical Industries, Ltd., and Riley, A. Oct. 17, 1927. Double salts of arylene diamines and halides of zinc, cadmium, and mercury, which are sparingly soluble and stable in air, are prepared by adding an aqueous solution of the halide to a solution of the diamine, or by neutralizing the solution obtained by reduction of nitroso-alkyl- or -dialkylanilines or toluidines with zinc and hydrochloric acid. In examples, compounds from o-, m- and p - phenylenediamine and zinc chloride, pphenylenediamine and mercuric chloride, mphenylenediamine and cadmium bromide, paminoacetanilide and zinc chloride, p-aminodiphenylamine and zinc chloride, 1 : 2-naphthylenediamine and zinc chloride and 4-chloro-mphenylene diamine and zinc chloride are prepared by the first method and the compound (C2H5)2 N.C6H4.NH2.HCl.¢ZnCl2 by reduction of pnitroso-diethylaniline with zinc and hydrochloric acid.
Patent GB-1187682-A (GB)
Title: Production of Graft Interpolymers
IPC: C08F291/02
Filed: 1967-06-14
Abstract: 1,187,682. Graft polymers. MONSANTO CO. 14 June, 1967 [14 June, 1966], No. 27548/67. Heading C3G. A graft interpolymer composition comprises a rigid polymeric matrix having particles of a graft polymer dispersed therethrough, said particles having a natural or synthetic rubber substrate having a viscosity average molecular weight of from 30,000 to 110,000 and a superstrate of a polymer of a monoethylenically unsaturated monomer, and a particle size of from 0À7 to 20À0 microns. It is formed by mixing the rubber with the superstrate monomer and a preformed polymer to obtain a two-phase system in which the continuous phase comprises a solution of the rubber in the monomer and the dispersed phase comprises a solution of the preformed polymer in said monomer, the rubber forming from 2À0 to 60% by weight of the admixture and the preformed polymer being present in an amount less than that which is required to produce irreversible inversion of phase and is also not more than 7% by weight of the combined total of the weights of said preformed polymer and said monomer less than that amount of polymer which is required to produce such an inversion of phases, and mass polymerizing said admixture at least until inversion of phase has occurred so that the rubber is then present in the disperse phase. Polymerization of the inverted phase admixture may be completed in aqueous suspension. The preferred rubbers are diene rubbers containing 75 to 100% of butadiene and up to 25% of a monoethylenic aromatic monomer and/or an unsaturated nitrile. Preferred superstrate monomers contain at least 5% of such an aromatic monomer and nitrile. The preformed polymer is derived from monomers the same as the graft monomers. The graft polymer may be blended with additional matrix, e.g. a rubber grafted with styrene and acrylonitrile is blended with a vinyl halide or vinyl ester polymer. In the examples, polybutadiene is grafted with styrene, in the presence of polystyrene, in bulk to 30% conversion and then in aqueous suspension to produce beads which are blended with additional polystyrene.
Patent GB-196309-A (GB)
Title: Improved lock-nut device for tram-car brake mechanism
IPC: B61H15/00
Filed: 1921-10-18
Abstract: 196,309. Brown, J. Oct. 18, 1921. Compensating for wear.-The transverse slide e of a brake-shoe f is adjusted on a longitudinal screw-threaded rod by means of a nut a which forms part of a sleeve h which is screwed on the rod d. The boss j of a weighted arm k is rotatably mounted on the sleeve and held in position by a collar. A lug o in the boss has a stud p on which a spring-controlled or weighted pawl q is pivoted. The arrangement enables the nut to be adjusted by moving the weighted arm k which is always left in the vertical position. Any tendency of the nut to slack back is resisted by the ratchetmechanism and weight of the arm k. In a modification, the ratchet-mechanism is dispensed with and an ordinary nut of the type locked by an unbalanced weight is employed. The weight is fitted over the nut and held in position by a set-screw, or is formed integrally with the nut.