baber/WOPTO huggingface dataset:
Patent GB-869348-A (GB)
Title: Improved engine-driven harvester with radiator air intake
IPC: B60K11/02
Filed: 1957-10-28
Abstract: 869,348. Purifying charge. MASSEY-FERGUSON Inc. Oct. 28, 1957 [Nov. 7, 1956], No. 33487/57. Class 7(2). [Also in Group XXXI] A harvester is driven by an engine 15 with a radiator 28 cooled by air drawr through a screen 34 and a duct A by a fan 29, a baffle 66 being moved periodically to a position in which it blocks the screen from the fan. When the duct A is blocked, air is drawn through a screer 38 and a duct B, the baffle being oscillated between the two positions by a crank 88 driven at about 5 r.p.m. from the straw walker shaft 16 of the harvester to which it is coupled by a worm gear 79 and a flexible collar 77. The baffle is pivotally mounted at the end of a vertical fixed baffle 60 between the ducts A, B and has a flexible blade 72 to form a sealing fit with the screens 34, 38. The periodic interruption of the air flow allows chaff and other material to fall from the screens which are made from perforated sheet metal. A pipe 58, an air filter 56 and a pipe 59 supply air to the carburetter. The straw walker shaft 16 is driven by a pulley 18 and a belt 19 from the engine-driven fanning mill shaft 20.
Patent GB-807651-A (GB)
Title: Improvements in or relating to diaphragm for tubeless tires
IPC: B60C5/12
Filed: 1955-11-23
Abstract: 807,651. Pneumatic tyres. FIRESTONE TIRE & RUBBER CO. Nov. 23, 1955 [March 4, 1955], No. 33560/55. Class 144 (2). In a tubeless tyre and wheel rim assembly an annular safety diaphragm 11, having radially inner edges airtightly anchored with the beads 6, 7 of the tubless tyre 1, comprises a wall of extensible material which normally divides the tyre into radially inner and outer chambers and which can expand at least into contact with the inner surface of the tyre on blowout of the outer chamber, means such as a flutter valve 14 being provided in the diaphragm to control passage of air between the chambers. The diaphragm may be made of vulcanized natural or synthetic rubber, or of a suitable plastic material. As shown, the diaphragm is shaped to embrace the tyre beads so that its edges are clamped between the beads and the wheel rim flanges 12, 13. When made of nylon or like plastic material the diaphragm edges may be perforated, embossed or rubber coated, to provide a better seal with the rim and tyre beads, and to prevent slip. The diaphragm may be built as a flat band, or shaped on a former, or injection or transfer moulded. The Specification contains examples of suitable rubber and plastic compositions for the diaphragm.
Patent GB-424877-A (GB)
Title: Improved catch-device for use with doors, gates, window-frames and the like
IPC: E05C19/02
Filed: 1934-11-22
Abstract: 424,877. Door and gate fasteners. COPE, J. C., 62, Upper Chorlton Road, and GARDNER, S., 233, Rye Bank Road, Chorlton - cum - Hardy, both in Manchester. Nov. 22, 1934, No. 33561. [Class 44] A fastener for doors, gates, window frames and the like has two jaws 1 shaped as shown in Fig. 3, working on pivot pins 2 on a plate 3 attached to the door frame or other member, and held in their normal position by plate springs 5. The pin 8 is carried by the door, and as this closes, the pin forces the jaws 1 apart and passes into the rear space 12 between them. To retain the parts in this locked position a bolt 13 operated by the handle 13<x> is moved into the forward space 11 between the jaws. The bolt may be enclosed by a cover plate 10 and the jaws may be controlled by a spiral spring or by pieces of rubber. The jaw 1 may be made of sheet metal with flanged edges.
Patent GB-471508-A (GB)
Title: Improvements in carburetters for internal combustion engines
IPC: F02M69/00
Filed: 1935-12-04
Abstract: 471,508. Spray carburetters. SOC. GENERALE DES CARBURATEURS ZENITH. Dec. 4, 1935, No. 33643. Convention date, Dec. 5, 1934. [Class 7 (iii)] In a carburetter in which fuel is supplied by a pressure regulator to an outlet opening into the induction passage on the engine side of the throttle, the fuel output controlled by the pressure difference between the regulator and the induction passage is subject to a superimposed control from a regulating member connected with a movable wall separating two chambers, one of which is connected with the induction passage behind the throttle valve, preferably in the vicinity of the fuel outlet, whereas the pressure in the other chamber is unaffected by the pressure in the induction passage or in the atmosphere. The position of the movable regulating member which varies the amount of fuel supplied by the fuel outlet depends on the absolute pressure in the mixing chamber and this member modifies the fall of pressure under which the fuel is delivered substantially in proportional relation to the absolute pressure. The pressure at which fuel is supplied to a nozzle 7, Fig. 1, from a chamber 10 of a diaphragm type regulator 9 is varied by a valve 23 in the dry chamber 15 which is open to the atmosphere or air inlet through a calibrated orifice 16, the valve being operated by a bellows 22, in a chamber 18 communicating with the mixing chamber 1 above the throttle valve 4, which also controls a valve 8 in the nozzle 7. The chamber 15 may be the space above the fuel in a float chamber. When it is desired to emulsify the fuel, the dry side of the diaphragm is at the same pressure as the air inlet and the fuel needle valve 48, Fig. 3, controls an inlet into an intermediate chamber 50, the pressure in which is determined by the size of an air inlet 52 controlled by a valve 54 connected to the suction operated expansible chamber 55, the emulsified fuel entering the mixing chamber 1 through a calibrated passage 51 around the stem of the needle valve 48. In a modification, the chamber 50 communicates directly with a second chamber in which the variable pressure is produced. In other modifications, the expansible chamber controls the fuel valve, the throttle actuates a control valve for the variable pressure, and the expansible chamber controls the fuel valve, varying its cross-section according to the square root of the absolute pressure in the mixing chamber. In the form shown in Fig. 5, a tapered fuel outlet 80 is controlled from one end by a sleeve 70 linked to the throttle control and at the pointed end by a sleeve 86 operated by the expansible chamber 90. According to the Specification as open to inspection under Sect. 91, a piston may replace the diaphragm. This subject-matter does not appear in the Specification as accepted.
Patent GB-1073601-A (GB)
Title: Improvements in and relating to formers
IPC: B29C41/14
Filed: 1962-09-04
Abstract: 1,073,601. Formers. R. E. CHAPMAN. Dec. 3, 1963 [Sept. 4, 1962], No. 33789/62. Heading B5A. A process for applying a relief pattern to a former for use in dip-moulding comprises impinging an abrasive material on the parts of the former where it is desired to apply the impressions. The former may be made from porcelain, glass or metal, and the abrasive may be sand, alumina or metal shot. In particular the former may be made from glazed porcelain, the parts of the former which are not to be impinged are shielded by a mask of rubber or metal, and the impressions are applied by sand blasting at a pressure of 1¢ lb. per square inch to produce an unglazed portion. The relief pattern may comprise indicia. The former may be a shoe former or a glove former in which a shallow groove may be formed around the wrist portion thereof. The formers are used for moulding articles of vinyl polymers or copolymers which contain a major proportion of combined vinyl chloride.
Patent GB-917602-A (GB)
Title: Improvements in or relating to electric lighting fittings
Inventor: APPLEBY CECIL MAURICE
IPC: F21V17/16
Filed: 1960-10-03
Abstract: 917,602. Latches. GENERAL ELECTRIC CO. Ltd. Sept. 26, 1961 [Oct. 3, 1960], No. 33809/60. Class 44. Relates to electric lighting fittings of the kind comprising a body 1 provided with means for supporting one or more electric lamps and releasable attachment means for attaching a shade to, or releasing it from, the body. According to the invention, the body includes at least one catch having a pivoted lever 6 spring-biased away at either side from a deadcentre position towards an operative or ready position, the lever being formed at one end with a retaining arm 9, which when the lever is in its operative position projects from the body of the fitting so as to be capable of clasping a shade 3, and being formed at the other end with an operating arm 10 which projects from the body of the fitting when the lever is in the ready position, so that pressure by a shade on the operating arm 10 in this position when moving the shade into place on the fitting, will rotate the lever about its pivot over its deadcentre and cause the retaining arm 9 to snap over to the operative position under the action of the spring bias. As shown, the spring bias is provided by a spring 12 anchored between a removable end cap 2 and the arm 9. A saddle 5 for supporting the lever 6 may be welded to the body, as shown, or may be retained in channels formed in the base of the body 1, by the spring 12. Specification 917,601 is referred to.
Patent GB-1511450-A (GB)
Title: Interlocking pool bridge
IPC: A63D15/10
Filed: 1976-08-13
Abstract: 1511450 Cue rest J R RUSSO 13 Aug 1976 33850/76 Heading A6H A billiard cue bridge head comprises a guide plate 6 having a tab 10 connected thereto to form an interlock with a slot in a similar head. The head is carried on a plastics or wooden stick 14. In a modification, a bridge, Fig. 6, has three unsymmetrical tabs 62, 66, 70.
Patent GB-998508-A (GB)
Title: Electrostatic precipitators
IPC: B03C3/12
Filed: 1961-09-21
Abstract: 998,508. Electrostatic precipitators. G. A. MESSEN-JASCHIN. Sept. 21, 1961, No. 33894/61. Heading B2J. In an electrostatic precipitator comprising a chamber 1, 3 with impermeable sidewalls, a gas inlet at one end and a gas outlet at the other, a plurality of frusto-conical tubular collecting electrodes 6 are connected together and withdrawably supported in the chamber as a readily replaceable expendable unit C, ionizing electrodes 2, 4 being supported to extend axially one within each collecting electrode 6 from the upstream and/or downstream end thereof. As shown, the precipitator comprises interfitting frames A, B which clamp between them a collecting electrode C resting on a support 5 of frame B. The individual electrodes 6 may be interconnected at their wide ends, as shown at 7, or at their narrow ends, the connecting portions 7 serving to prevent gas flow through the chamber other than via the electrodes 6. In an alternative arrangement, the wide ends 14 of the electrodes 6 may be formed to square section, Fig. 7, adjacent electrodes being connected along the sides of such ends. The unit C may be made of foil-covered paper or plastic. Fig. 8 shows a further form wherein the tubular electrodes are formed in an otherwise solid block of plastics material.
Patent GB-379935-A (GB)
Title: Improvements in fluid-pressure brakes
IPC: F16D65/28
Filed: 1931-12-08
Abstract: 379,935. Fluid-pressure brakes. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Dec. 8, 1931, No. 33956. Convention date, Feb. 12. [Class 103 (i).] A fluid-pressure brake applied by a spring f and released by vacuum in a pipe k comprises an air displacer h in the cylinder which di. minishes the space in the cylinder from which air has to be withdrawn and is separate from the cylinder and is surrounded by the spring. The displacer is held against the end of the cylinder by the spring which engages a flange g on the displacer.
Patent GB-521658-A (GB)
Title: Improvements in the extraction of mineral oils with selective solvents
IPC: C10G21/10
Filed: 1938-11-24
Abstract: 521,658. Fractionating oils by solvents. EDELEANU GES. Nov. 24, 1938, No. 34185. Convention date, Dec. 29, 1937. [Class 91] In the countercurrent treatment of mineral oils with liquid sulphur dioxide or other selective solvent at relatively low temperatures, the oil, before entering the cooler in front of the extractor, is diluted with part of the extract solution. The extract solution may first be cooled in one or more stages to separate constituents soluble therein only at higher temperatures. For example, solvent enters the extraction tower 1 by a pipe 8, oil by a pipe 3 passing through a cooler 6 ; a portion of the extract discharging through a pipe 4 passes by a pipe 2 to the oil in front of the cooler 6. Oils specified for treatment include light oils, wax-containing oils, lubricating fractions, and residual oils.
Patent GB-780018-A (GB)
Title: Improvements relating to heading tools for use in cold forging
Inventor: LYNALL ALAN HERBERT
IPC: B21K1/44
Filed: 1954-11-25
Abstract: 780,018. Forging tools. LINREAD, Ltd. Nov. 25, 1955 [Nov. 25, 1954], No. 34228/54. Class 83 (4). A heading tool for cold heading articles such as bolts or screws, comprises an outer casing 3 reinforcing an intermediate sleeve 2, and an inner member 1 set in from the end of the sleeve 2 to provide a recess into which the head is upset, the bottom of the recess having an annular vented chamber for escape of air and/or oil. The tool may be a heading die for use on a two-station heading machine in which the inner member 1 receives the shank of the article to be headed, or it may be a punch in which case the inner member is solid. The three parts are secured together by shrinking and a small radius or chamfer is provided around the edge of the inner member 1 to form an annular chamber which is vented by longitudinal grooves 6. Embodiments are described for forming screws or bolts with countersunk, hexagon or round heads. The inner member may be in two or more parts, Fig. 7 (not shown), for forming bolts having a spigoted underface. The intermediate sleeve 2 may also comprise two or more interfitting parts.
Patent GB-805292-A (GB)
Title: Semiconductor devices
IPC: H01L29/00
Filed: 1954-11-26
Abstract: A germanium wafer for use in making transistors as described in Group XXXVI is reduced to an appropriate thickness by chemically etching in a mixture of one part 45 per cent hydrofluoric acid and four parts 69.8 per cent nitric acid.  After plating electrodes on to the wafer the device it etched in a mixture of one part 48 per cent hydrofluoric acid and one part 69.8 per cent nitric acid to reduce the electrodes to an appropriate size and to remove stray electrode material from the wafer.  Specification 805,291 is referred to.
Patent GB-859519-A (GB)
Title: Improvements in automatic clutch engaging and disengaging devices
IPC: F16D25/12
Filed: 1958-10-27
Abstract: 859,519. Speed-responsive switches. WEYMANN, C. T. Oct. 27, 1958 [Oct. 28, 1957; Oct. 21, 1958], No. 34355/58. Class 38 (5). [Also in Group XXIV] A centrifugally operated switch comprises an engine-driven shaft 93 fast upon which is a disc 92. A movable contact 97 on the disc 92 is normally biased to engage a neutral contact 102, but, when the disc 92 is stationary, a mass 99 at the end of a spring 100 secured to the disc, engages an arm 98 carried by the contact to hold the contact 97 against a live contact 103. On rotation of the disc 92 with increasing engine speed, the mass 99 moves radially outwards with respect thereto sway from the lever 98, so that the contact 97 under its natural bias engages the neutral contact 102 and the switch is opened. The contacts 97, 103 are fed through slip-rings 104. Specification 738,471 is referred to.
Patent GB-772357-A (GB)
Title: Improved apparatus for the wet spinning and continuous treatment of synthetic fibres
IPC: D01D5/06
Filed: 1953-12-10
Abstract: <PICT:0772357/IV(a)/1> <PICT:0772357/IV(a)/2> An apparatus for the wet spinning and continuous treatment of synthetic filaments comprises a tank in which the spinning solution is brought to a desired temperature, a coagulating bath of a size such that formed filaments carry away a liquid sheath having the composition of the bath, and a first and second drafting device between which is a washing device in which the filaments are treated with a hot liquid; the washing device comprises a pair of cylinders whose axes are in horizontal planes and cross each other in plan, the washing liquid being applied in sections and the liquid being collected from each section under the cylinders in a compartment of a tank and recirculated to the sprinkling device of the section, excess liquid from each compartment overflowing into the next compartment in the opposite direction to the travel of the filaments.  Means are also provided whereby the liquid from the second drafting device is circulated to the washing cylinders and from the latter to the coagulating bath.  As shown, a solution of polyacrylonitrile in dimethyl formamide may be brought to a temperature of 60 DEG  C. in a tank 1, Fig. 1, and extruded into a bath 4 containing equal volumes of dimethyl formamide and water at a temperature of 30 DEG  C.  The filaments are drawn through the bath at 5.63 m.p.m. and travel through 2 m. in the bath so that the liquid sheath has the composition of the bath.  The filaments pass over drafting cylinder 6, 7, a washing device 9 and into a tank 10 containing water at 99 DEG  C.  The second drafting device comprises a friction rod 11 within the tank 10 and a pair of squeez rollers 12, and after leaving the squeeze rollers 12 the filaments pass to a reel 13 and may be sent to drying cylinders and devices for printing, heat treating or cutting.  Water is supplied to the tank 10 at the appropriate temperature through a pipe 14 at a rate regulated according to the output of the spinning pump.  The tank is kept at constant level and excess liquid is sent by means of a pump 15 and duct 16 to the washing cylinders, where additional water may be supplied by a pipe 17, also regulated in accordance with the output of the spinning pump.  The washing device comprises four sprinklers, 25, 29, 32, 34 and a tank divided by partitions 24, 23 and 22 of continuously decreasing height into four compartments 26, 27, 30, 33.  Liquid from each sprinkler passes from the cylinders into the corresponding section of the tank and is recirculated by the pumps 15, 28, 31 and 18 respectively to the sprinklers.  Excess liquid from each of the sections 26, 27 and 30 overflows into the next section and excess liquid from the section 33 is circulated to the coagulating bath. Excess liquid from the coagulating bath is removed for solvent recovery.
Patent GB-1237276-A (GB)
Title: Improvements in or relating to processes and devices for cutting sheet material
IPC: B26D1/22
Filed: 1968-07-19
Abstract: 1,237,276. Cutting sheet material. SERVICE D'EXPLOITATION IXDUSTBIELLE DES TABACS ET DES ALLUMETTES. 19 July, 1968 [19 July, 1967; 24 July, 1967], No. 34458/68. Heading B4B. A device for cutting sheet material, such as reconstituted tobacco, into strips comprises two members 1, 2, the member 1, at least, being rotatable and having sharp cutting ridges and the other member having blunt ridges, the linear velocities of one member being different from that of the other. As shown in Fig. 1, the members 1, 2 are both rotatable by means of gears 3, 4 and the ridges are of helical form. The blunt edges of the ridges 9 on the member 2 may be roughened over different portions of their peripheries in order to provide a different braking effect as the sheet material is being fed between the member, this effect producing a strip having a wavy formation. In modifications, the ridges may be circular instead of helical (Fig. 4) and may be formed as separate discs held together to form rollers, Fig. 8 (not shown). In a further modification, the cutting roller (31), Fig. 11 (not shown), is of frustoconical shape and co-operates with a parallel roller (35); such an arrangement produces a curved strip. The member 2 producing the restraining effect on the sheet may be formed as a flat grooved surface and given a rectilinear vibratory motion. Alternatively, the restraining member may be stationary or in the construction of Fig. 4 (not shown) rotated in the same or opposite directions as the cutting member or it may be allowed to rotate freely. Due to the different linear velocities of the two members, the strips of material are subjected to a longitudinal stress thereby causing them to break into short lengths. The ridges may be protected by a hard metallic coating e.g. chromium plating.
Patent GB-1198520-A (GB)
Title: Equipment for Fastening Cutting Dies.
IPC: F16B29/00
Filed: 1967-07-27
Abstract: 1,198,520. Cutting dies. SANDVIKENS JERNVERKS AB. 27 July, 1967 [27 July, 1966], No. 34579/67. Heading B4B. [Also in Divisions B3 and F2] A method of fastening a cutting die 10 to a plate 11 comprises providing the plate with a number of slots 15 arranged in parallel relation and providing the die with tie members 12, 13 having one or more slots 14, positioning the die on the plate so that at least some slots in the tie members 12, 13 and plate 11 cross one another, positioning an expandable bolt assembly 16 in the slots at least at one crossing point, and expanding said bolt assembly. The cutting die 10 which may be used for cutting textiles, leather or thin sheet metals may be fastened to the plate 11 together with a plurality of other dies.
Patent GB-1502973-A (GB)
Title: Preparation of 6beta-alkoxy-25-hydroxy-3alpha,5-cyclo-5alpha-cholestanes and intermediates therein
IPC: C07J53/00
Filed: 1975-08-20
Abstract: 1502973 3α,5α - Cyclo - 6# - alkoxy - steroids UPJOHN CO 20 Aug 1975 [23 Sept 1974] 34579/75 Heading C2U A steroid of the formula (wherein R is C 1-6  alkyl) is prepared by reacting a 3α,5α - cyclo - 6# - alkoxybisnorcholanaldehyde with (C 6 H 5 ) 3 P = CBr 2  or (Me 2 N) 3 P = CCl 2  to form a steroid of the formula (wherein X is Br or Cl) reacting this with an organolithium compound in an organic solvent at below -40‹ C. to form a novel steroid acetylide of the formula if desired converting this to the corresponding free novel acetylene of the formula reacting the acetylide with 2-methyl-propan- 1,2-oxide in an inert organic solvent to form a steroid of the formula and catalytically hydrogenating this.
Patent GB-1435164-A (GB)
Title: Flame resistand thermoplastic polyesters
IPC: C08G63/00
Filed: 1973-07-20
Abstract: 1435164 Flame retardant polyesters HOECHST AG 20 July 1973 [22 July 1972 (2)] 34665/73 Heading C3R A polyester is derived from terephthalic acid or an ester-forming derivative thereof, a saturated straight-chain diol having 2 or 4 carbon atoms and a diphosphinic acid of the formula  in which R is a C 1-15  alkylene or cycloalkylene radical, a phenylene or biphenylene radical or a phenylalkylene radical having up to 6 carbon atoms in the alkylene group, and R 1  and R 2  are C 1-6  alkyl or cycloalkyl radicals or a phenyl or benzyl radical; or an ester or oligomer thereof. The polyester may contain fibres of glass, quartz, asbestos or carbon. The examples describe polyester prepared from dimethyl terephthalate, ethylene glycol or 1,4-butanediol and ethylene-1,2-di(methyl phosphinic acid), methylene-di(methylphosphinic acid) or