baber/WOPTO huggingface dataset:
Patent GB-946550-A (GB)
Title: Improvements in or relating to the manufacture of shoes
IPC: A43D49/00
Filed: 1960-04-05
Abstract: 946,550. Inseam trimming machines. BRITISH UNITED SHOE MACHINERY CO. Ltd. April 5, 1960 [April 7, 1959], No. 11941/60. Heading A3B. [Also in Division B5] A machine for trimming the inseams of welted shoes prior to the attachment of an outsole has a cup-shaped cutting tool fitted with a readily replaceable annular saw blade. The saw blade 56 comprises a cylindrical portion 58 and a frusto-conical portion, integral therewith, which is clamped between cup-shaped members 62, 64. Members 62 and 64 are urged together by a nut 70 threaded on a hub 72 rotatably mounted on a stud 74. Relative rotative movement between members 62 and 64 is prevented by a stud 63. Studs 90 and slots 94 facilitate the positioning of the blade which is split midway between slots 94. A feed wheel 4 has a concave upper face 100 to accommodate the curve of the cutter blade so that, at the point of trim, the blade closely approaches the work-engaging surface 10 of the wheel 4. The axis of rotation A of the cutting tool may be inclined downwardly to bring the blade closer to surface 10. A welt crease guide and a rib guide are also provided. The cutter assembly is rotated through an integral gear 78 on hub 72. Specification 112,808 is referred to.
Patent GB-460168-A (GB)
Title: Improvements in and relating to trailer couplings
IPC: B60D1/50
Filed: 1936-04-27
Abstract: 460,168. Vehicle draw-gear. KOHLER, J. April 27, 1936, No. 11946. Convention date, April 26, 1935. [Class 103 (v)] The body 1 of a coupling between road vehicles is resiliently connected to the vehicle frame 4 by rigidly securing it to the centre of a leaf spring 2, the ends of which are engaged between rollers 3 carried by the frame 4. Preferably the rollers are mounted on pins 5 secured to brackets 6 on the frame, and the spring is of such length that in its unstressed condition its ends abut against the vehicle frame, while the bore 8 that receives the connecting pin is disposed in front of the spring.
Patent GB-1157803-A (GB)
Title: Crimping Yarn
Inventor: MATTINGLY DENIS ALBERT EDWARD
IPC: D02G1/00
Filed: 1965-07-22
Abstract: 1,157,803. Crimping yarn. KLINGER MFG. CO. Ltd. 1 July, 1966 [22 July, 1965, 18 March, 1966], Nos. 31135/65 and 11993/66. Headings D1C, D1D, D1F and D1W. Yarn is crimped by forming the yarn into a continuous chain of stitches, heat-setting the yarn while subjecting the chain to tension, and unravelling the yarn. As shown, yarn passes between the spring urged blades of tensioner 14 to knitting station 2 where bearded needle 17 oscillated by crank 24 knits the yarn into a chain of crocket stitches (Figs. 2 and 3, not shown). The chain is looped around ceramic guide 49 and rubber covered roll 3 which is spring urged against driving roll 4, and passes along a groove in convex plate 52 - which is heated electrically or by hot oil, is thermostatically controlled, and is surrounded by insulator 51 - to guide 57 and back along further groove in the plate to withdrawal rolls 6, 7 and guide roll 62, with roll 7 being driven and of gusto-conical shape and roll 6 being adjustably mounted with respect to roll 7 so that the chain speed is adjustable. The chain tension and the shrinkage of the yarn in the heating zone is controlled by the speeds of the two sets of rolls 3, 4 and 6, 7 respectively, so that a nylon chain may be overfed into the zone to allow the nylon yarn to shrink, while a polyester chain may have zero overfeed. The yarn is pulled from the chain by rubber surfaced roll 8 and steel roll 9 and is wound on package 10 having a traversing guide mounted on belt 67 serving a plurality of winding stations - as in specification 885,473. The driving motor 22 for the whole machine is stopped should guide 87 in the unravelling zone either be lifted too much by excessive tension of the chain or yarn or fall due to yarn breakage, movement of guide 87 opening switches (Figs. 9a-f, not shown) in the starter circuit of the motor 22. Due to the chain being heat set in the tensioned state the crimped yarn has a plurality of sharply angled uniform V-shaped crimps, with one side of the "V" being twice as long as the other and having a slight bend half-way along (Fig. 7 and 8 not shown). The yarn may be mono-or multi filament. Crimp may be increased by engagement with a sharp edge or by an air blast between unravelling and wind-up. Instead of the chain being of single stitch width it may be up to 4 or 5 stitches wide and may have the stitches arranged in a spiral sequence. 2 or more yarns may be fed together to the knitting station and separated from one another after the unravelling.
Patent GB-1093792-A (GB)
Title: Improvements in or relating to methods of producing light-weight building materials of slate, slate-clay, or the like
IPC: C04B20/06
Filed: 1965-03-22
Abstract: Expanded slate or slate clay is produced by mixing slate or slate clay of particle size of 1-20 mm. with sand or other refractory material of a particle size of up to 2 mm., passing the mixture through a heated rotary kiln and separating the sand from the resultant product. If necessary, the slate or slate clay may be ground initially to a finer state of subdivision than that specified above, the fine material formed in granules, and these granules utilized in the above process.  The sand or other refractory material may be added by coating the still moist granules with it prior to calcining. Furthermore, the fine and very fine fractions of slate or slate clay produced during comminution may be granulated, and the granules mixed with the large particles of slate or slate clay, prior to mixing with sand or other refractory material and calcining.
Patent GB-912453-A (GB)
Title: Process for the production of film bases of polyesters
IPC: G03C1/91
Filed: 1961-04-04
Abstract: A film made from a synthetic linear polyester, e.g polyethylene terephthalate, is subjected to the action of ozone, a layer of hydrophilic unsaturated monomer, e.g. acrylic and methacrylic acids and amides, is then applied thereto and polymerized.  The monomer used may contain an activator, e.g. sodium bisulphite.  The resulting film may be coated with a water-permeable colloid, e.g. gelatine. The polyester film may be biaxially stretched either before or after the polymerization of the monomer.
Patent GB-233732-A (GB)
Title: Photographic enlarging and projection apparatus
IPC: G03B27/56
Filed: 1925-05-11
Abstract: 233,732. Texereau, J. May 12, 1924, [Convention date]. Enlarging, copying, and reducing.-A projection apparatus convertible for camera reproducing or enlarging or for direct photography and adapted for use vertically or horizontally comprises an adjustable bellows camera with a detachable lantern casing 8, Fig. 1, mounted by horizontal arms 30, Fig. 4, on upright telescopic columns 38 which are secured to the base 42. Each arm is positioned angularly in the head 31 of the columns by spring-pressed balls 36, Fig. 3, and clamped by wing nuts 32. The weight of the lantern and camera is counterbalanced by springs 45 in each column, the telescoping tubes 37 being positioned at different heights by similar spring-pressed balls 36 and clamping nuts 40. The camera is mounted on a ring 12 carried by the arms 30 and the lantern casing 8 and condenser 11 are detachably secured to this ring 12 by spring bolts 6. The lantern casing has a cylindrical spaced part 7 and a double reflecting back 1, 2 hinged to the part ". The plate holder for the camera, comprises three bolted frames 13, 14, 15 through which two racks 19 slide. The racks are adjusted by the pinion shaft 18, and carry the camera front 23 which carries an adjustabld lens panel 25, the bellows 22 being mounted between the front 23 and the frame 15.
Patent GB-1490684-A (GB)
Title: Heater unit for a toaster
IPC: A47J37/08
Filed: 1976-03-26
Abstract: 1490684 Resistance heating unit WESTFALISCHE KUPFER - UND MESSING- WERKE AG 26 March 1976 [27 March 1975] 12377/76 Heading H5H A heating unit for a two slice toaster comprises a central heating element 1 between two lateral heating elements 5, wherein the central element 1 consists of a notched mica plate around which is wound a wire resistor 2 in the form of a double helix, terminals 3 provided at one end of the plate and a slot 4 provided in the opposite end of the plate through which the wire resistor 2 passes from one surface of the plate to the other, wherein each lateral element 5 consists of a mica plate formed at opposed edges with notches, the notches 6 in one edge being deeper than the first and last notches 6a and 6b in that edge and deeper than the notches in the other edge, a resistor wire 2 wound in serpentine fashion about the notches to extend on one side of the plate, terminals 3 at one end of the plate, and a return portion 8 of the wire 2 extending down said one edge of the plate and passing alternately in front of and behind the teeth between notches 6a, 6b; and wherein the central element 1 is provided on each side and the lateral elements 5 are provided on the said one side with a narrow fixing strip 10 to prevent displacement of the resistance wire convolutions, each fixing strip 10 being formed by a cut-out portion 11 removed from the lateral plates. The four fixing strips 10 required are provided by two cut-outs 11 in each lateral plate. The fixing strips 10 are secured to the mica plates by rivets.
Patent GB-156561-A (GB)
Title: Improvements in or relating to alloys of silicon with metals of the iron and chromium groups
Filed: 1920-05-04
Abstract: 156,561. Walter, R. Jan. 7, 1920, [Convention date]. Alloys.-Acid-resisting alloys of substantial proportions of silicon with one or more metals of the iron and chromium groups and containing also over 0.65 per cent of carbon are cast at a temperature only slightly above the melting-point.
Patent GB-1417445-A (GB)
Title: Method for producing diffusion layers
IPC: C03C17/34
Filed: 1973-03-15
Abstract: 1417445 Coated glass sheet CARL ZEISS JENA VEB 15 March 1973 12429/73 Heading B2E A glass sheet is coated with a large area diffusion layer for use in microfilm devices, by coating the surface of the sheet one or more times with a mixture comprising (i) a solution of polyvinyl alcohol, (ii) an aqueous dispersion of a polyacrylate or polyvinyl acetate as opacifying agent, and (iii) a plasticiser, the pH of the mixture being less than 5; drying the coating; and applying to it a protective varnish film, the varnish film being an alkyd varnish, a spirit varnish, an oil varnish or a methacrylate varnish.
Patent GB-709813-A (GB)
Title: Inlet control means for air or other gas compression or vacuum pumps
Inventor: BOYCE GUY BARON
IPC: F04C28/24
Filed: 1951-05-28
Abstract: 709,813. Fluid-pressure servomotor-control systems. HYDROVANE COMPRESSOR CO., Ltd. May 8, 1952 [May 28, 1951], No. 12433/51. Class 135 Means for controlling the admission of air or other gas to an air or other gas compression or vacuum pump, comprising the combination of a spring-loaded gas-inflow controlling member operable by a variable liquid pressure, and a spring-loaded valve operable by the said pressure for controlling the action of the said member. As shown, the air inlet passage m, Fig. 1, to the pump is supplied from passage k and controlled by the inflow controlling member formed as a piston valve c, inside which is a check valve e seating against the air supply passage k. The pressure of the sealing oil of the pump is applied through port n and acts on a piston i which, at a predetermined oil pressure moves against spring j to open passage p whereby the oil acts on the piston valve c to move it to close the passage m against a spring d. When the pump delivery pressure falls, the oil pressure also falls, and the piston i returns to its initial position, thus permitting oil in passage p to flow through a passage o into the pump. In another arrangement, a valve e', Fig. 3, controls communication between passage k and inlet m and has a stem r slidable in an inflow controlling member formed as a piston s loaded by a spring t. Thus, an increase in pump delivery pressure moves piston i to open passage p whereby oil moves piston s to engage shoulder x on stem r and move valve e' towards closed position. In yet another arrangement, the inlet control valve is a lift valve actuated by a single-acting piston.
Patent GB-935580-A (GB)
Title: Bag-making machine
IPC: B65B29/02
Filed: 1962-04-02
Abstract: 935,580. Packaging machines; making paper bags. FR. HESSER, MASCHINENFABRIK A.G. April 2, 1962 [April 2, 1961], No. 12520/62. Classes 94(1) and 94(2). Blanks separated from a web 1, Fig. 1, are pushed by a folder 15 which effects a V- or W-bottom fold, into grippers 12 on a vertical intermittently-rotating wheel 10 from which, possibly after further operations, they are delivered to an intermittently rotating horizontal wheel 30 by which they are carried during filling. The machine illustrated can be readily modified to produce bags of different forms. Folding guides 22 and welding jaws 23, 24 adjacent the wheel 10 can be readily replaced, and folding guides 45 operating on the web may form it to a simple tube, to produce a bag with two compartments, as in Fig. 6, or may fold it to the section shown in Fig. 2 to produce the bag shown in Fig. 5. The bags may be heatsealed, or a device 50 may apply to the web a strip of glue derived by heating a glue thread 51. The folder 15 shown has two blades 16, 17, Fig. 4, co-operating with a blade 18 on each gripper 12 to produce a W-bottom fold. Each gripper includes pivoted shoes 19 biased by blade springs 20. The web 1 is fed by constantly rotating rollers 5, 6 and intermittently rotating rollers 7, 8 separated by a pulley 9 serving to take up the slack in the web. The blanks are cut off by knives 13, 14. The bags may be delivered to the wheel 30 by a vertical wheel 26, but this may be omitted. The bags, which may be infusion bags, are filled from funnels 35 moving in synchronism with the bags and lowered into engagement with them adjacent a hopper 32 feeding measured quantities. After they have been closed by a device 33 the bags are delivered to a wheel 36 where they receive a label 37 attached by a thread 38. They are then stacked in predetermined numbers in the compartments of a wheel 41.
Patent GB-592329-A (GB)
Title: Improvements in and relating to means for locking a retractable aircraft undercarriage
IPC: B64C25/20
Filed: 1945-05-18
Abstract: 592,329. Automatic catches. BOULTON PAUL AIRCRAFT, Ltd., and MORRALL, J. W. May 18, 1945, No. 12525. [Class 44] [Also in Group XXXIII] Means for locking a pivoted aircraft undercarriage leg 1 in the extended position comprise a latch 5 loaded by a compression spring 15 and freely mounted on an eccentric 6 fixed on a rotatable shaft 7 carrying an unlocking lever 8. A sleeve 13 is mounted on the eccentric and is formed with a latch-actuating lever 9 and a lug 10 connected to the aircraft structure by a return spring 11. The sleeve 13, eccentric 6 and shaft 7 are secured together by a common pin 14. As the leg approaches the extended position defined by a stop 4, its upper end engages the lever 9 and rotates it upwardly to engage and lift the latch 5. When the stop is almost reached, the lever slips off the edge of the leg and snaps back into its normal position, thus allowing the latch to snap into position behind the leg and rotating the eccentric to force the latch to the left and press the undercarriage leg against the stop. The downward movement of the lever is momentarily arrested by a ledge 16 on the leg so that the latch moves into position before the clearance is taken up by rotation of the eccentric. To unlock the latch, the lever 8 is rocked upwardly to rotate the eccentric 6 and lever 9 and thus relieve the pressure on the latch and lift it clear of the leg. The lever 8 may be actuated by an auxiliary hydraulic ram, an electric motor and screw and nut gearing, an initial idle movement of the main retracting jack or a mechanical coupling to the cockpit. According to a modification, the latch may be drawn into position behind the leg by link pivoted to the latch and carrying an abutment engaged by the leg as it extends.
Patent GB-324867-A (GB)
Title: Improvements in the manufacture of water gas
IPC: C10J3/00
Filed: 1929-04-23
Abstract: 324,867. Power-Gas Corporation, Ltd., and Rambush, N. E. April 23, 1929. Producer plant.-A water gas generator has a tubular steam superheater and steam is superheated alternately or simultaneously outside and inside the tubes, which may first be heated by the blow gases. Part of the steam may be employed for another purpose and may be sect through the tubes during the blow period. Steam from a waste heat boiler may be passed continuously through some, of the tubes and through the whole of the tubes when not occupied by process steam. Two superheaters may be provided. In a. water gas plant comprising a generator 4, steam superheater 5, and waste heat boiler 6, steam to flow upwardly through the generator is passed through superheating tubes covered with sleeves of non-metallic heat-storing material as described in Specification 288,463. An inlet valve 3 is changed over during the run period, steam then entering the brick-lined superheater vessel, passing over the superheater tubes and through the generator in a downward direction.
Patent GB-773794-A (GB)
Title: Improvements in or relating to the production and/or stabilisation of hydroquinones
Inventor: FROHNSDORFF RAYMOND STANLEY MA
IPC: A61Q5/10
Filed: 1954-04-30
Abstract: Quinones are reduced to hydroquinones and/or hydroquinones are stabilized by treating a quinone or hydroquinone with an aqueous alkaline solution of an alkali metal borohydride.  Such solution may be used for dyeing keratinous material such as wool or hair, and the hydroquinone oxidized on the fibre, the pH being reduced to destroy the borohydride if desired, or the oxidation may take place in alkaline solution.  A primary aliphatic or arylaliphatic amine and an antifoaming agent may be present in the dye solution. The rate of reduction to hydroquinone may be speeded up in some cases by the addition of alcohols.  Quinones specified are benzoquinone, hydroxybenzoquinone, methoxybenzoquinone, 2-aminobenzoquinone, 2,5-bis - diethylamino-benzoquinone, anilinoquinone, 2,5-dihydroxybenzoquinone, 2,5-dimethoxybenzoquinone, chloroquinone, 1,4-naphthoquinone, lawsone, juglone, menaphthone, 2-amino - 1,4 - naphthoquinone, 1,2 - naphthoquinone-4-sulphonic acid sodium salt, 2,3-dichlor - 1,4 - naphthoquinone, naphthazarin, indigo, alizarin. In examples: (1) lawsone, juglone and naphthazarin are each ground with potassium borohydride and the mixtures added to water, the solutions are subsequently acidified or reduced in pH by addition of a buffer, and used to dye hair and wool cloth.  Also in examples: (2) mixtures of (a) trihydroxybenzene and lawsone, (b) lawsone and juglone, (c) juglone and naphthazarin, and (d) lawsone, juglone and naphthozarin are similarly treated.ALSO:Quinones are reduced to hydroquinones and/or hydroquinones are stabilized by treating a quinone or hydroquinone with an aqueous alkaline solution of an alkali metal borohydride.  Such solutions may be used for dyeing keratinous material such as wool or hair, and the hydroquinone oxidized on the fibre, the pH being reduced to destroy the borohydride if desired, or the oxidation may take place in alkaline solution.  A primary aliphatic or arylaliphatic amine and an antifoaming agent may be present in the dye solution. The rate of reduction to hydroquinone may be speeded up in some cases by the addition of alcohols.  Quinones specified are benzoquinone, hydroxy benzoquinone, methoxybenzoquinone, 2 - aminobenzo, quinone, 2.5 - bis - diethylamino - benzoquinone, anilinoquinone, 2.5 - dihydroxy-benzoquinone, 2.5 - dimethoxybenzoquinone, chloroquinone, 1.4 - naphthquinone, lawsone, juglone, menaphthone, 2-amino - 1.4 - naphtho quinone, 1.2 - naphthoquinone - 4 - sulphonic acid sodium salt, 2.3-dichlor- 1.4naphthoaquinone naphthazarin, indigo, alizarin. In examples, (1) lawsone, juglone and naphthazarin are each ground with potassium borohydride and the mixture added to water, the solutions are subsequently acidified or reduced in pH by addition of a buffer, and used to dye hair and wool cloth.  Also in examples (2) mixtures of (a) trihydroxybenzene and lawsone, (b) lawsone and juglone, (c) juglone and naphthazarin, and (d) lawsone, juglone and naphthazarin are similarly treated.
Patent GB-558905-A (GB)
Title: Improvements in shuttle guards for looms for weaving
IPC: D03D49/58
Filed: 1942-09-08
Abstract: 558,905. Shuttle-guards for looms. RICHMOND, H. Sept. 8, 1942, No. 12634. [Class 142 (iii)] A shuttle-guard for a loom comprises two or more brackets each having an end part to be screwed on the front face of the slay cap 4, and intermediate part 5 projecting forwardly from the cap and a second part 6 obliquely disposed, the brackets being connected together by a rail 7 disposed at about the level of the bottom of the slay cap, arms 9 pivotally mounted on the rail or brackets so as to swing laterally, and one or more rails 12 pivotally connected to the arms so as to be movable upwards and downwards with them. A bent lug 19 limits the downward movement of the arms 9 under the pressure of a spring 18, and a projection 8 on the rail 7 serves to hold the device in its inoperative position. Specification 547,812 is referred to.
Patent GB-1320055-A (GB)
Title: Reinforcing rods for concrete
IPC: E04C5/03
Filed: 1971-05-03
Abstract: 1320055 Rods for reinforced concrete J A IRIBAS SUAREZ DE OTERO 3 May 1971 [20 Feb 1971] 12658/71 Heading E1K A rod for reinforced concrete has a substantially circular cylindrical nucleus 1 on which are formed four longitudinal ribs 2, arranged at 90‹ intervals, and two diametrically opposed sets of transverse ribs 3, each set crossing one of two diametrically opposite ribs 2, the ribs 3 being of reducing crosssection in directions away from the associated ribs 2 and terminating flush with the surface of the nucleus just before reaching the position of the other two longitudinal ribs. The transverse ribs 3 are preferably inclined to the axis of the rod at between 34‹ and 53‹ and the ribs of the two sets are staggered. The rod may be twisted to produce a helical formation of ribs 2.
Patent GB-735757-A (GB)
Title: Improvements in or relating to magnetically-operated apparatus
Inventor: GARSCIA ALFONS JOHN
IPC: G01M15/04
Filed: 1952-05-19
Abstract: 735,757. Magnetometers. ROLLS-ROYCE, Ltd. Aug. 18, 1953 [May 19, 1952], No. 12672/52. Drawings to Specification. Class 37. [Also in Group XXXVIII] Apparatus for measuring the strength of a magnetic field comprises an electronic valve located so that the electron path between cathode and anode is at right angles to the magnetic lines of force, whereby the anode current is determined by the field strength. The valve is preferably a pentode, e.g. Mullard EF91 having a central cathode surrounded by three grids and two parallel anodes, with the screen-grid at a higher potential than the anodes.