baber/WOPTO huggingface dataset:
Patent GB-318549-A (GB)
Title: Manufacture of solutions applicable as lacquers
IPC: C08L61/14
Filed: 1929-09-03
Abstract: 318,549. I. G. Farbenindustrie Akt.- Ges. Sept. 5, 1928, [Convention date]. Coating-compositions.-Resin lacquers are prepared by mixing, in solution, a polymerization product of a vinyl ester with the condensation product of a phenol and an aldehyde or an agent yielding an aldehyde. The solutions may be used either alone or mixed with nitrocellulose. Example :-A solution of 80 parts polyvinyl acetate and 30 parts cresol paraldehyde condensation product in 200 parts of alcohol, is mixed with a solution of 50 parts nitrocellulose in 200 parts alcohol, 300 parts toluene, and 350 parts butyl acetate. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the preparation of resins by mixing the constituents otherwise than in solution, and the use of derivatives of phenols in addition to phenols. This subject-matter does not appear in the Specification as accepted.
Patent GB-828379-A (GB)
Title: Process for chlorination of olefine polymers
IPC: C08F8/20
Filed: 1957-08-26
Abstract: Olefine polymers are chlorinated in a continuous process to produce homogenous polymers containing 10 to 40% of chlorine by flowing a mixture of a solution of 2 to 20% by weight of the polymer in an inert organic solvent with 22 to 133 parts by weight of chlorine to 100 parts of polymer, through a tubular reactor under conditions of viscous laminar flow at 70 DEG  to 225 DEG  C., and at a pressure sufficient to maintain all normally gaseous ingredients in solution until <PICT:0828379/IV (a)/1> substantially all the chlorine has reacted.  Normally solid polymers with a weight average molecular weight of at least 10,000 are used and polymers of ethylene, propylene, a -butylene, iso-butylene pentene, 2-methyl-1-butene, 3-methyl-1-butene, 1-hexene, 2,3-dimethyl-1-butene, 3,3 - dimethyl - 1 - butene and 2 - ethyl-1-butene are mentioned and polyethylene and copolymers of ethylene with from 10 to 60% of propylene are preferred.  Solvents include carbon tetrachloride, chloroform, trichlorethylene, and tetrachloroethane, and a free radical catalyst such as a -a 1-azodiisobutyronitrile may also be present.  The resulting solution may be separated from vapour, and the solvent separated from the solution or the solution may be chlorosulphonated with chlorine and sulphur dioxide or other chlorosulphonation reagents in a similar manner to the chlorination.  A suitable apparatus (Figure) comprises supply lines 2 and 10, pumps 4 and 12, delivering polymer and chlorine respectively dissolved in the same solvent, to the mixing chamber 8, thence to the tubular reactor, 16, with a smooth interior of uniform bore with internal diameter not greater than one inch and from 30 to 100 feet long.  The reaction mass is passed through a reducing valve 20 to expansion chamber 24 from which the solution of chlorinated polymer is discharged.  The solvent vapour is condensed 28 and may be recycled to the solution of chlorinated product.  U.S.A. Specification 2,503,252 is referred to.
Patent GB-287043-A (GB)
Title: Improvements in or relating to centrifugal friction clutches
IPC: F16D43/18
Filed: 1927-10-10
Abstract: 287,043. Bergsunds Mekaniska Verkstads Aktiebolag. March 12, 1927, [Convention date]. Clutches, friction. - In centrifugal segmental friction clutches, means are provided to reduce the radial pressure on the leading edges of the shoes so as to equalize the frictional wear over the surfaces of the shoes. The driver D, Fig, 1, is secured to the friction shoe B by a tractive blade spring E. In the form shown in Fig. 4, a spring E<3> is directed towards a point on a radius through the centre of the shoe in or outside the frictional surface of the drum A. In a modification, the spring E<3> is replaced by a rigid pivoted link. An inclined strut E<2>, Fig. 3, is arranged between the driver and the shoe. In further modifications, a torsion spring or a blade spring secured in the leading portion of the shoe, is arranged axially of the clutch. According to the Specification as open to inspection under Sect. 91 (3) (a), a blade spring F<2>, Fig. 8 (Cancelled), or a spiral tension spring may bear upon the leading portion of the shoe. This subject-matter does not appear in the Specification as accepted.
Patent GB-172748-A (GB)
Title: Improvements in moulding machines
IPC: B22C17/14
Filed: 1920-09-21
Abstract: 172,748. Brandt, V. P. Sept. 21, 1920. Moulds.-A movable moulding-machine, in which the mould is overturned to release the cast block, comprises two side pieces 1, 2 held together by the plate 6 and cross-bars 8 and having bosses 10 pivoted on rotary pins 13 journaled in the apexes H of triangular members 16. These members also carry the ournals of wheels G and levers 21 respectively, so that on raising the latter the mould is lifted from the ground and may be rotated into the position shown in Fig. 4. The castblock is released b raising the mould walls and the cores 26 connected thereto by means of racks 28, 29, engaged by pinions 30 on the shaft 31, upward movement of the block being prevented by the mould base 23 which is held in position by columns 22 connected to the plate 6.
Patent GB-535190-A (GB)
Title: Improvements relating to brake mechanisms
IPC: B61H13/24
Filed: 1939-09-30
Abstract: 535,190. Railway vehicle brakes. TOMLINSON, A. V. (Stewart, C. D.). Sept. 30, 1939, No. 26922. [Class 103 (i)] . In a braking arrangement for railway vehicles comprising a number of brake shoes applied under radial pressure to a wheel-and-axle unit of the vehicle, a supporting structure for the brake shoes is mounted on the vehicle frame and arranged to be moved into supporting engagement with the wheel &c. unit, when the brakes are applied for the purpose of preventing reactions from the brakes applying downward force upon the vehicle frame and so unduly compressing the frame-supporting springs. Fig. 5 shows brake-shoes 13 and 14 applied to drums carried by the vehicle wheels and supported by hangers from horizontal levers 16 pivoted at 18 at the middle of the vehicle frame, the supporting engagement being obtained by means of other brake-shoes 15 pivoted on the levers 16 and applied to the brake-drums of the vehicle wheel. The horizontal levers 16 are supported at their movable ends by springs in boxes 20.
Patent GB-1298596-A (GB)
Title: Benzoxazinones
IPC: C07D498/04
Filed: 1970-03-13
Abstract: 1298596 2 - (2<SP>1</SP> - Haloethyl) - 2,3 - dihydro- 3 - hydroxy - 4H - 1,3 - benzoxazin - 4 - ones CARTER-WALLACE Inc 13 March 1970 [24 March 1969 21 Jan 1970] 27106/72 Divided out of 1298595 Heading C2C Novel 2 - (2<SP>1</SP> - haloethyl) . 2,3 - dihydro - 3- hydroxy - 4H - 1,3 - benzoxazin . 4 - ones of the general formula wherein each X is a hydrogen or halogen atom or a hydroxyl, C 1-6  alkyl, C 1-6  alkoxy, nitro, amino, acetamido, sulphonamido or trifluoromethyl group, n is 1 or 2, each of R<SP>1</SP> and R<SP>2</SP> is a hydrogen atom or C 1-6  alkyl group and Y is a halogen atom, are prepared by reaction of a salicylhydroxamic acid of the general formula with an acrolein of the general formula or an acetal thereof, in the presence of a hydrogen halide.
Patent GB-777855-A (GB)
Title: Improvements in or relating to wood preservative compositions
IPC: B27K3/32
Filed: 1954-09-20
Abstract: 777,855. Wood preservative composition. SONTI, V. R. April 14, 1955 [Sept. 20, 1954], No. 27200/54. Class 140. A wood preservative composition comprises arsenic pentoxide, copper sulphate and sodium dichromate in the following proportions by weight: arsenic pentoxide (As 2 O 5 .2H 2 O) 0.7 to 1.3; copper sulphate (CuSO 4 .5H 2 O) 2.5 to 3.5; sodium dichromate (Na 2 Cr 2 O 7 ) 4 to 5. An aqueous solution of the preservative composition may be injected into wood or applied by brushing, spraying or dipping, or the wood may be impregnated under pressure.
Patent GB-984050-A (GB)
Title: Method and apparatus for tapering bars
IPC: B21H7/00
Filed: 1963-07-09
Abstract: 984,050. Rolling. EATON MANUFACTURING CO. July 9, 1963 [July 30, 1962], No.27201/63. Heading B3M. A method of rolling an article, such as a leaf spring, comprises placing the article on a carrier, with a surface of the article cooperating with a die surface on the carrier, and passing the article and carrier between a pair of rolls each driven at the same speed so that the surface of the article is formed to the contour of the die surface. The workpiece W, to be formed into a leaf spring, is placed on a carrier comprising a platen 25 containing a number of shaped dies 27a-27e, and the assembly is rolled between rolls 12 and 13. The upper roll is formed with a recess defining the width of the rolled spring, while the roll 13 is contoured to co-operate with the platen 25. The platen is guided on driven rollers 40 and between adjustable vertical rollers prior to rolling, and on idle rollers 180 and 183 after rolling. A shoulder 29 on disc 27a prevents slippage of the workpiece relative to the platen as rolling begins. The rolls 12 and 13 are each formed from two semicircular profiled shells held on the shafts 75 and 76 by a series of bolted segments 146. Spacing rings 130 and 131, welded to the shafts, determine the roll pass. Each roll shaft is formed with a dovetailed insert 117 which is welded into place. Gears 80 and 81 on the shaft ends intermesh to drive the rolls, the gear 80 being driven from a belt 83 through gearing 86, 87 and 91. A stripper 170, Fig. 3, prevents the workpiece from adhering to the roll, the stripper and an associated roller guide being adjustably mounted in the roll frame.
Patent GB-389873-A (GB)
Title: Improvements in processes for the production of mouldable rubber compositions
IPC: C08L19/00
Filed: 1931-09-30
Abstract: A mixture of finely divided rubber and fibre, e.g. ground up tyres, is mixed with cumarone oil and moulded under heat and pressure, the oil being thereby resinified.  Sulphur or other vulcanizing agent may be added.  The quantity of oil may be about 10 per cent.  The moulded product may be machined and turned. Rollers, such as are employed in textile machinery, made from the composition, can be forced on to their spindles by pressure and a tight fit will be maintained.
Patent GB-867265-A (GB)
Title: Improvements in self-propelled hand lift trucks
IPC: B62B5/08
Filed: 1959-08-11
Abstract: 867,265. Stillage trucks. CLARK EQUIPMENT CO. Aug. 11, 1959 [Sept.. 29, 1958], No. 27372/59. Class 78 (3). The platform 42 of a stillage truck is connected to the wheeled base-frame 28 by parallelogram links 48, 50, and is raised by moving coaxial rollers 84, 86, 88 relative to a cam 92, secured to the platform, and cams 96, 98 secured to the frame 28. The rollers are journalled on a shaft 82 carried by the piston-rod 78 of an hydraulic ram 70 which is pivoted to the frame at 74, and which, due to the shape of the cams, exerts a substantially constant force throughout the lifting range.
Patent GB-275831-A (GB)
Title: Improvements in the arrangement of ports for two-stroke-cycle internal-combustion engines including diesel engines and the like
IPC: F02B75/02
Filed: 1926-11-02
Abstract: 275,831. Vane, H. C., Vane, W. R., and Sutton, P. E. Nov. 2, 1926. Cylinders, arrangement and form of ports in. - Two opposed piston-controlled ports a, for scavenging air or combustible mixture, point towards the cylinder head; one or two transverse exhaust ports c are arranged between them If there are two exhaust ports, the centre-lines of the inlet and exhaust ports may subtend any angle between 60‹ and 90‹ as shown. If only one exhaust port is provided it is subdivided by a bar and the axes of the inlet ports are in a plane which is slightly beyond the axis of the cylinder as composed with the exhaust port.
Patent GB-1358173-A (GB)
Title: Conduit cleaning apparatus
IPC: E03F9/00
Filed: 1971-06-11
Abstract: 1358173 Cleaning conduit interiors CONGO Inc 11 June 1971 [9 Sept 1970] 27487/71 Heading F2N Conduit cleaning apparatus includes flexible rods 24, Fig. 1, interconnected at 26, a rod storage device 22 rotatable about shaft 20, and a pair of driven chains 120, arranged side-by-side and carrying blocks 118 for engaging the rod interconnections 26 to drive the composite rod, carrying a cleaning tool (not shown) at its leading end, into or out of a conduit (not shown). An internal combustion engine 50 acts through pulleys and belts or chains and sprockets to rotate the device 22 during introduction or withdrawal of the rods into or from the conduit, the composite rod itself and the cleaning tool thus rotating at these times. Movement of a hand lever 64 to an inoperative position breaks the drive between engine 50 and device 22 and operates a brake to stop rotation of the device. Engine 50 is drivingly connected to an hydraulic pump/motor 76, rotation of the output shaft of which is used to drive the chains 120 through sprockets 106, 110 and chain 108. An hydraulic shunt path across unit 76 includes lines 80, 82 and valves 102. One of the valves 102 is manually adjustable to regulate the hydraulic resistance of the shunt path for one direction of flow, the other valve being manually adjustable to regulate resistance for the reverse flow direction. The resistance for the flow direction corresponding to operation of unit 76 to drive the rods into the conduit is set lower than the resistance for the reverse flow direction, so that the maximum available force for propelling the rods into the conduit is less than that for withdrawing same. A manual control 94 is operable to control the direction and speed of rotation of the output shaft from unit 76. The sprockets, around which the chains 120 are trained, are mounted on shafts 112, 114, which are themselves mounted in pillow block bearings depending from the base of an inverted channel section, which is coextensive with the length of the chain runs, Figs. 2-4 (not shown). The upper chain run, which is used to propel the rods, extends over the base of the channel section and beneath a longitudinally-extending bar, which latter may be removed to free any rods which become broken or jammed in the driving section.
Patent GB-921932-A (GB)
Title: Improvements in or relating to projection apparatus
IPC: G03B21/46
Filed: 1959-08-11
Abstract: 921,932. Film gates. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 11, 1959 [Aug. 14, 1958], No. 27499/59. Class 97 (1). The front fixed guide plate of a film gate has, on either side of the projection aperture, a strip lined with velvet or other soft material. The strips are symmetrical about a longitudinal axis and, when the velvet wears, may be interchanged or turned back to front about the longitudinal axis; if they are also symmetrical about a horizontal axis they may also be inverted. Thus each piece of velvet may provide four working surfaces.
Patent GB-292005-A (GB)
Title: An improved device for patterning surfaces
IPC: B05C17/035
Filed: 1927-10-17
Abstract: 292,005. Vieck, H. Oct. 17, 1927. Rotary machines ; inking-apparatus.-A patterning-device for painting, decorating, &c. comprises colour-transfer, feed, and pattern rollers, wherein the main feed-roller consists of a hollow cylinder either covered with a meshed mantle and supported freely on a core roller arranged in its interior, or covered with a fabric and supported on a spindle. The transfer roller c transfers colour from the roller c to the main feed-roller f<1>, f<2>, which feeds the resilient pattern roller g. The roller g comprises a hard core s, surrounded with spongy rubber u, on which is mounted the resilient pattern mantle t. The roller g is held by a. holder k, adjustably mounted by sliding plates l, m in a guideway o. A guide roller p is provided. A toned colour effect is produced by herring-bone grooves in the transfer rollers e, r, Fig. 2. Where the grooves are close together more colour will be transferred to the feed-roller and vice -versa, whence a shading is produced. Two or more colours may be used, the arrangements for each colour being to that shown, the feed-roller being regarded as a central point to which each colour is transferred.
Patent GB-736841-A (GB)
Title: Improvements in or relating to apparatus for forming a cover for a multiple-book sub-assembly
IPC: B42C7/00
Filed: 1952-02-29
Abstract: 736,841. Making wrappers. DOW CORNING CORPORATION. Feb. 29, 1952 [March 10, 1951], No. 27532/53. Divided out of 736,784. Class 94 (2). [Also in Group XL (b)] Apparatus for forming covers for assembly with pads of cleaning tissues as described in Specification 736,784, comprises feeding rollers 122, 123, Fig. 2, at station J, Fig. 1, which are driven by a motor 127 through gearing 132 ... 135 and a clutch 131 and operate to draw a web of thermoplastic cover stock 108 from a roll 109 over a wick 115 which applies a treating fluid. The clutch is operated by a rocking lever 135a actuated by solenoids 137, 138. The'web is dark in colour and is provided at regular intervals with clear spots which are observed by a photo-electric cell 118 which receives light reflected by the web from a source 117. The cell and light source are mounted on a frame 119 adjustable laterally and longitudinally for focussing purposes. The cell 118 is connected to an electronic counter 121 which controls the energization of the solenoid 138, the arrangement being such that after a predetermined number of spots have been counted, the solenoid is energized to disengage the clutch and stop the feeding rollers. As the link 140 moves downwards, an abutment 141 thereon operates a switch 142 to cause energization of a solenoid 144, Fig. 3, which operates a one revolution clutch 168 in the drive to a crank 163 and connecting rod 162 which reciprocates a rod 161 coupled by linkage to a vertically-movable holder 154 supporting a cut-off blade 158 and printing die 153. The latter co-operates with a spring-supported plate 148, Fig. 4, movable downwardly between side plates 146, 147 over which the cover stock is fed, the side plate being provided with guides 151, 152 and heated by elements 149. As the holder 154 descends, the required length of cover stock is cut off and forced to the shape shown in Fig. 5. The shaft 164 of the crank 163 carries a cam which operates a switch 169 to de-energize the solenoid 144, so that the clutch 168 is disengaged after one complete revolution, and then operates a switch 170 which energizes the solenoid 137, thereby re-engaging the clutch 131, and resets the counting device 121.
Patent GB-1521577-A (GB)
Title: Process for the mass dyeing of thermoplastics
IPC: C08L51/00
Filed: 1976-07-02
Abstract: 1521577 Mass-dyed polymers; dyestuff concentrates CIBA-GEIGY AG 2 July 1976 [4 July 1975] 27558/76 Headings C3K and C3L Thermoplastic polymers are mass dyed with a Mg, Zn, Cd or Ni salt of a dye of formula wherein A is phenyl or naphthyl, optionally substituted by halogen. C1-14 alkyl or alkoxy, X is H or carboxy, and n is 1 or 2. The dye can be used admixed with a metal carboxylate or sulphonate, the metal being the same as the one of the dyestuff.
Patent GB-187228-A (GB)
Title: An improved photographic developing tank
IPC: G03D13/06
Filed: 1922-10-12
Abstract: 187,228. Waterworth, A., and Framjee, G. F. Oct. 12, 1921, [Convention date]. Trays and dishes for roll-films; liquid-circulating.-A tank for roll-films comprises a deep narrow trough A having at one end a spool chamber O containing a vertically-disposed spool holder E provided with means for securing the end of the film backing-strip, and a. light-tight lid B provided with means for extending the film in a loop along the trough A, and for agitating the liquid in the trough. The holder E has pins e for supporting the spool, the upper pin being mounted on a slidable part E<1> adjustable for different sizes of spool, and has also a tongued part F in which the end of the film backing-strip is secured In the lid B is a rod G, slidable in a guide G<1>, and having a depending bar H on which a roller H<1> may be mounted. Before the lid is put on, the rod is pulled out so that, when the lid is placed in position, a loop of the film backing-strip rests between the bar H and the end of the trough A, Fig. 4. The rod is then pushed in, and the bar H unwinds the film so that it extends in a loop along the trough. The liquid is introduced through a funnel D and agitated during development &c. by prongs M depending on each side of the film from a rod K reciprocatable in a guide K<1> in the lid B.
Patent GB-245254-A (GB)
Title: Improvements in carburetting apparatus for internal combustion engines
IPC: F02M19/02
Filed: 1924-11-19
Abstract: 245,254. Collyer, J. A. Nov. 19, 1924. S p r a y carburettors. - Fuel from a float chamber g passes through a conduit l<1>, Fig. 1, to a nozzle d, whence it is sprayed into the main air passage a which contains a cone or cylinder c of absorbent material. The nozzle is screwed exteriorly and provided with outlet orifices at its upper end and over it are screwed a washer h<1>, nut h<2>, and a cap h. Fine grooves are formed in the lower face of the cap for the discharge of fuel. The cone c consists of two layers of gauze supported by rings c<1>, the lower of which is held between the washer h<1> and nut h<2>. Air is admitted to the chamber a by a suction-actuated spring-loaded valve e<3>. Arranged around the main air passage are smaller induction tubes f with adjustable air inlets f<2>, the outlets i for mixture opening into the passage a both above and below the throttle valve b. Each tube contains a wick q, communicates at its lower end with the float chamber, and may be provided with a perforated cup-shaped cap j for priming. The float chamber may have a gauze filter g<2> and surplus fuel may collect in tubes o provided with absorbent material. In a modification, Fig. 2, the gauze cylinder c is supported in an annular channel c<2> fed with fuel through a pipe d<2>. In further modifications, two pipes d<2> may be employed and they may extend horizontally from the nozzle d. According to the Provisional Specification, the carburettor may be surrounded by a casing to which warm air is admitted.
Patent GB-191499-A (GB)
Title: Improvements in or relating to milking machine teat cups
IPC: A01J5/06
Filed: 1921-10-18
Abstract: 191,499. Treloar, J. Oct. 18, 1921. Cow-milkers.- The rubber lining of a double-chambered teat-cup is turned outwardly over the ends of the casing, and the parts are so formed that the outer surface of the end of the lining tapers towards the end of the cup. The lining D, Fig. 2, may be of uniform thickness, the ends of the casing A being tapered so that fittings B, C, grip the lining when pressed on. Apertures E may be provided to cause the suction within to act on the end portion of the lining, and connectors F of elastic or spring material may be employed to secure the fittings B, C. In a modification the ends of the lining D, Fig. 4, may be thickened, the casing A being of uniform diameter. The fittings B may be either tapered or of uniform diameter.