baber/WOPTO huggingface dataset:
Patent GB-523852-A (GB)
Title: Improvements in or relating to a locating device for holding work in milling or likemachines
IPC: B23Q16/08
Filed: 1939-01-16
Abstract: 523,852. Milling-machines. INGERSOLLRAND CO. Jan. 16, 1939, No. 1494. Convention date, Jan. 19, 1938. [Class 83 (iii)] A device for holding and locating work, particularly detachable cruciform drill bits, in a milling machine, has the work mounted on a carrier provided with a V-shaped locating member coacting with similar formations on the work-holder for correctly presenting different parts of the work to the cutter 22. The carriage 23 is provided with a cylinder 24 moving over a stationary piston 25 and having an extension which slides on a screwed rod 31 carrying an adjustable stop nut 33 which limits the forward stroke of the carriage and so controls the depth of cut. The fluid admission to the cylinder is controlled by a valve 41 actuated by a handle 42, to move the carriage in either direction. The carriage is fitted with slotted projections 47, 48 which receive a work-holder 50 comprising a sleeve 51 screwed to a chuck portion 54 having an expansible part 58 which may be expanded by the coned end 60 of a draw rod 59 to grip the threaded socket 58 of the drill bit 57. The projection 47 has a pair of V-shaped projections 65 with their apex portions 67 lying in the horizontal plane of the work holder and normal to the carriage movement. The sleeve 51 carries V-shaped notches. 69 arranged in cruciform fashion so that after the work has been set to sharpen one groove 63 of the bit the carriage may be retracted and the work rotated 90 degrees and another cutting operation performed.
Patent GB-764216-A (GB)
Title: Improvements in or relating to electrode clamp for electric furnaces
Inventor: CARLETON RICHARD JANVIER
IPC: H05B7/103
Filed: 1955-01-18
Abstract: 764,216. Furnace electrode holders. REPUBLIC STEEL CORPORATION. Jan. 18, 1955, No. 1495/55. Class 39(3) i - An electrode clamp for an electric furnace comprises an arm 10 with a collar 13 partly surrounding an electrode 15 and cooled by water pipes 17 surrounding the electrode and carrying rotary cams 27 moving a wedge block 30 radially with respect to the collar to clamp or release a wedge-20 against the electrode. The wedge 20 has on its outer side two staggered rows of teeth 41 which are engaged by rotatable dogs 42 on the wedge block 30 so that the wedge is releasably held thereby and is adjustable vertically. The wedge 20 may be released by a crowbar engaging the teeth 41 or by rotation of the cams 27 about a pivot 59 carrying an arm 56 pivoted to an arm 55 adjustably connected at 62 to an, arm 53 connected to piston 65 in a cylinder 45 pivoted at 50 to a bracket 46 on the electrode arm 10 carried on a masthead 11. The piston 65 is moved by liquid or air pressure through pipes 66, 67 connected to a fluid inlet valve 68 to release or clamp the wedge 20, which has lateral shoulders 78 slidable in opposed channels 76 in the wedge block 30. Current is supplied at 14 to a bar 16 connected to the collar 13, and cooling water is supplied to the collar 13 and pipes 17 through the arm 10. The wedge is attached by insulated screws 33 through an insulating plate 32 to a block 31 slidable radially to the electrode between side members 21 of the cam casing and being moved by blocks 28 bearing against the rear of the block 31 and against cylindrical portions 27 of the cam eccentrically mounted between concentric portions 24 of the cylindrical cam member 26, so that on rotation of the cam 26 by the arm 56, the cams 27 rotate to move the wedge block 30 to or away from the electrode. The side members 21 of the cam casing are welded to the cooling pipes 17. The clamping pressure on the electrode is held by reduced fluid pressure on the piston, or by arranging that the apex 72 of each cam 27 is nearest the electrode at the full clamping position. A shielding plate 85 is mounted at the base of the wedge block assembly to protect it from furnace heat.
Patent GB-126669-A (GB)
Title: Improvements in or relating to Liquid Fuel Tanks for Aeroplanes and the like.
IPC: B64D37/16
Filed: 1917-02-01
Abstract: 126,669. Aircraft Manufacturing Co., Havilland G. de, and Chapman, J. S. Feb. 1, 1917. Tanks, arrangement of.-Liquid fuel is raised from a main tank 3 to a gravity tank 47 by a rotary pump 11 contained in the main tank and driven by a wind wheel 28. The fuel passes to a junction box 44 near the pilot's seat, whence pipes 45, 46 with stop cocks lead to the tank 47 or to the carburettors 45<a>. The tank 47 is provided with an overflow pipe 51 and a gauge glass 48. The pump delivers fuel in excess of what is required by the motor.
Patent GB-1416814-A (GB)
Title: Monitoring of the weft in a loom
IPC: D03D51/34
Filed: 1973-01-12
Abstract: 1416814 Weft detectors SULZER BROS LTD 12 Jan 1973 [13 Jan 1972] 1686/73 Heading D1E A method of monitoring weft in a loom comprises transmitting a beam across the picking line, detecting interruptions in the beam as the weft forms loops across its path, summing during a first period the number of times the weft leaves the beam, and during a second period, the number of times the weft leaves the beam plus the duration of its absence from the beam, and then adding the two sums to form a signal which is compared with a reference signal to decide whether the weft is broken or mispicked. The detecting beam may be electromagnetic radiation, such as visible light or may be a sonic or pneumatic beam. Electronic or pneumatic circuitry may be used to process the signals from the beam, (Fig. 2, not shown).
Patent GB-488536-A (GB)
Title: Denture brush
IPC: A46B9/04
Filed: 1938-01-19
Abstract: 488,536. Toothbrushes. MITTON, G. T. Jan. 19, 1938, No. 1719. [Class 19] A denture brush comprises bristles 7 radiating from a hemispherical stock 9 with an elongated base 10. Each side of the stock has a depression 16, Fig. 5, for the reception of the thumb and a groove 17 for the fingers. The bristles 7 are arranged in inverted-V- formation and interfit at their extremities.
Patent GB-1525771-A (GB)
Title: Reinforced polyester moulding compositions of reduced flammability
IPC: C08L67/02
Filed: 1976-01-16
Abstract: 1525771 Drip resistant polyester compositions BASF AG 16 Jan 1976 [24 Jan 1975] 01726/76 Heading C3R Drip resistant, flame retardant moulding compositions comprise (a) a linear polyester, (b) from 10 to 60% by weight of a reinforcing agent, (c) from 3 to 30% by weight of a flame retardant and (d) from 0À25 to 6% by weight of a bisepoxide, the percentages being based on the composition. The composition may contain an amine catalyst for the crosslinking of the polyester and bisepoxide. The examples describe compositions comprising (a) polybutylene terephthalate, (b) glass fibres or glass spheres, (c) red phosphorus or antimony trioxide and either decarbromodiphenyl oxide or an adduct of hexachloropentadiene and cyclooctadiene, and (d) an epoxide based on bisphenol A and epichlorohydrin.
Patent GB-831872-A (GB)
Title: Process for the preparation of trans-2, 5-dimethylpiperazine
IPC: C07D295/023
Filed: 1957-01-17
Abstract: Catalysts containing preferably 30-70% of nickel on an inert support are used for the hydrogenation of 2,5-dimethylpyrazine to 2,5-dimethylpiperazine.  They may be prepared either by precipitating nickel on a pre-formed support or by co-precipitating a nickel salt and a suitable inert material. Suitable catalysts include 60% nickel on alumina, 53-54% nickel on aluminium silicate and 56% nickel on kieselguhr.  Other suitable supports include calcium magnesium aluminium silicate, magnesium silicate and silica gel.  Promoters such as chromium, cobalt, copper and magnesium may be present.  If the catalyst is not already in a completely reduced state it is preferably heated in a hydrogen atmosphere at 350-400 DEG  C. for 6 to 48 hours.  This procedure may also be used to reactivate spent catalyst.  In the example: a solution comprising 1 litre of water, 870 gm. nickel nitrate hexahydrate, 200 gm. aluminium nitrate nonahydrate, 7.64 gm. magnesium nitrate hexahydrate, 1.3 gm. ferric nitrate nonahydrate and 24.1 gm. chromic nitrate nonahydrate is added to 2790 gm. of a vigorously-stirred solution of 10% sodium hydroxide; the resulting precipitate is filtered, washed with water, dried, heated at 375 DEG  C. for four hours and then at 375 DEG  C. in a stream of hydrogen for 24 hours.  Reference has been directed by the Comptroller to Specification 777,503.ALSO:A process for the preparation of trans-2,5-dimethylpiperazine comprises passing a vaporous mixture containing hydrogen and 2,5-dimethylpyrazine over a nickel catalyst maintained at 150-180 DEG  C.  The trans-compound may be removed from the resulting mixture of cis- and trans-2,5-dimethylpiperazines, e.g. by filtration of the condensed vapours and the ciscompound in vapour form may be passed over the same or a different catalyst bed for isomerization.  Suitable feed rates are 40-600 gm./hr./litre of catalyst for the dimethylpyrazine and 120-400 litres/hr./litre of catalyst for the hydrogen.  The process may be operated continuously or batchwise.  The preferred catalysts contain 30-70% by weight of nickel on a support.  Promoters such as chromium, cobalt, copper and manganese may be present.  The catalyst may be activated or reactivated by heating in hydrogen. The dimethylpyrazine starting material may be purified to remove monoisopropanolamine by distillation with a volatile liquid hydrocarbon followed by scrubbing the condensate with water, returning the washed condensate to the still until no more isopropanolamine is removed by the wash water and then separating the hydrocarbon by fractionation or azeotropic distillation.  Reference has been directed by the Comptroller to Specification 777,503.
Patent GB-702149-A (GB)
Title: Improvements in and relating to pilot's jettisonable cockpits
Inventor: GUPPY THOMAS GEORGE
IPC: B64D25/12
Filed: 1951-01-23
Abstract: 702,149. Jettisonable cockpits. BLACKBURN & GENERAL AIRCRAFT, Ltd. Jan. 1, 1952 [Jan. 23, 1951], No. 1737/51. Class 4 An aircraft cockpit which is severable from the main fuselage along the line 5, has propulsive means e.g. the rocket 6, which operates to drive the cockpit forward, on or about the time of operation of the other means to sever the cockpit. The severed cockpit may be stabilized by fins and ducts as described in Specifications 672,915 and 702,148.
Patent GB-1441472-A (GB)
Title: Rolling mills
IPC: B21B39/16
Filed: 1974-01-14
Abstract: 1441472 Piercing mills MANNESMANN-MEER AG 14 Jan 1974 [19 Jan 1973] 01763/74 Heading B3M A mill for piercing a bloom 15 by a pair of skewed rolls 7, 8 includes guide assemblies 13 on either side of the bloom, each assembly being pivotable about a pin 12 to an inoperative position (shown dotted). The assembly is pivoted by an hydraulic jack 14 and is retained in its operative position by a releasable wedge locking unit 13. Each assembly 9 (Fig. 2, in plan) includes a slide 10 which is movable by an adjuster 11 and carries either a slide guide 22 or a guide roller (Fig. 4, not shown). Associated with the adjuster is a driving motor 19 and a threaded spindle 20.
Patent GB-879586-A (GB)
Title: Fuel supply systems for aircraft
Inventor: BELL ROBERT HENRY
IPC: B64D37/16
Filed: 1959-01-19
Abstract: 879,586. Fuel supply systems. LUCAS (INDUSTRIES) Ltd., JOSEPH. Jan. 18, 1960 [Jan. 19,1959], No. 1834/59. Class 7(3). An engine-driven fuel pump 1 is supplied from a tank 6 by a booster pump 5 driven by an hydraulic motor 7 the motive fluid of which is fuel supplied by a second engine-driven pump 8 connected to the supply pipe 3 on the low pressure side of pump 1, the motive fluid from the motor 7 being returned to the supply line 3 near the delivery side 10 of the booster pump 5. A filter 4 may be provided and the pump 8 may have a pressure-release by-pass valve 11. The pump 5 may be constructed as described in Specification 879,585.
Patent GB-1428862-A (GB)
Title: Alkylation process
IPC: C07C67/00
Filed: 1974-01-15
Abstract: 1428862 Alkylating aromatic compounds MONSANTO CO 15 Jan 1974 [16 Jan 1973] 1883/74 Heading C5E [Also in Division C2] Monoalkylated aromatic compounds are produced by passing a liquid phase mixture of an aromatic compound, in substantial molar excess, and an olefinic hydrocarbon through at least two successive separate beds of solid phosphoric acid catalyst wherein a liquid mixture of the reactants is also introduced between at least two successive catalyst beds as a quenching medium. The alkylation may be effected at 300-550‹ F., 300-900 p.s.i.g., and with an aromatic : olefin feed ratio of 4 : 1 to 16 : 1. Examples describe the preparation of cumene by the acetylation of benzene with propylene. The feed mixture may contain an inert diluent such as propane but the ratio of propylene : diluent should be at least 5 : 1. The quenching medium may comprise benzene and propylene in a mole ratio of less than 8 : 1.
Patent GB-621533-A (GB)
Title: A device for turning over articles of flat shape at a point where they are transferred from one conveyor belt to another conveyor belt
IPC: B65G47/24
Filed: 1947-01-21
Abstract: 621,533. Endless belt conveyers. HORICA, M. Jan. 21, 1947, No. 1938. Convention date, Jan. 29, 1946. [Class 78 (i)] In a device for turning over ceramic tiles and the like flat articles at the point where they are transferred from one conveyer belt to another, the turning over is carried out after the entry of the tile into a rotatable bridge consisting of a driven roller 1, Fig. 1, a pressure roller 2 and a number of supporting rollers 3, 4, 5 and 6, the reversal being effected by reversing the direction of rotation of the roller 1 under an impulse imparted by the passing tile or article which has to be reversed. The roller 1 is driven by a gear 7, Fig. 3, meshing with an axially movable gear 8 which is spring pressed against one wall of the bridge, the gear 8 being driven by a shaft 11 carrying a pair of discs 15, 16, Fig. 2, which may be alternately engaged by a disc 17, which constantly rotates in one direction. Reversal of the direction of rotation of the shaft 11 reverses the direction of rotation of the. roller 1 and also due to the frictional engagement of the gear 8 with the bridge wall the whole bridge is rotated through 180‹ until a projection 9 thereon strikes an abutment stop 10 or 12 so reversing the tile face to face and projecting it on to the conveyer A. Engagement of the disc 17 with either of the discs 15, 16 is controlled by a counter 13 which is operated by engagement of the passing tile with a pivoted roller 14, and since each tile that is turned contacts the, roller 14 twice in its passage between the conveyers, the counter 13 is arranged so that when it is required to reverse every tile it only sends out a reversing impulse after every other contact. If required the counter 13 may also be set so that every nth tile is reversed, in which case the reversing impulse is sent out after every (n + 1)th contact.
Patent GB-524034-A (GB)
Title: Improvements in apparatus for automatically regulating the consistency of a fluid mixture which it is desired to keep at a constant density
IPC: D21F1/08
Filed: 1939-01-20
Abstract: 524,034. Fluid-pressure servomotors. LIVESEY, J. J. Jan. 20, 1939, No. 1958. [Class 135] In means for automatically controlling the consistency of a fluid mixture, the mixture is allowed to flow from a constant-level chamber through an adjustable aperture c<SP>1</SP> and pipe C<SP>1</SP> into a receptacle A carried by a pivoted balance arm B weighted at B\ the outlet from the receptacle being bent at A<SP>1</SP>, A<SP>2</SP> so as to retard the outflow of fluid and cause a variable amount of fluid to be retained in the receptacle according to the variations in consistency. The outlet of fluid at A<SP>2</SP> is directed into two passages e', e<SP>2</SP> leading to a bladed wheel F which operates a valve controlling one of the fluid supplies, the arrangement being such that, when the consistency increases, the greater amount of fluid retained in the receptacle A causes the latter to be depressed, and the fluid to be delivered into the passage e<SP>1</SP>, rotating the wheel F in the direction to reduce the consistency. When the consistency decreases below the desired degree,. the receptacle is raised, and the fluid flows through passage e<SP>2</SP> to rotate the wheel in the reverse direction. The invention is specially applicable for regulating the consistency of stock used in the manufacture of paper &c.
Patent GB-126680-A (GB)
Title: Improvements in or relating to Winches or Hauling Apparatus for Kites, Observation or Target Balloons and the like.
Inventor: DODSON PERCY LLOYD HANMER
IPC: B66D1/48
Filed: 1917-02-09
Abstract: 126,680. Dodson, P. L. H., and Hugh, P. G. Feb. 9, 1917. Winches; brakes for winding and paying-out apparatus; constant-tension and tension-regulating winding and paying-out apparatus; laying or guiding cables on or off during winding or unwinding on motor-vehicles; control-transmitting gear; fair-leads; guide pulleys and rollers.-Relates to winches for hauling in or paying out the cables attached to a kite or observation balloon. The apparatus is mounted on a frame 10 supported by feet 11<1> which can be secured to a lorry or ship, and may be covered with a weather-proof fabric placed over a frame 81, or protected by sand bags. The winding drum 29 and brake drum 27 are rotatably mounted on a shaft 30, and the ends of the brake band 31 are connected to the periphery of one of the flanges of the drum 29 by spring tension devices 32, so that these drums can rotate at different speeds. The drum 27 is driven through bevel gears 26, 25 from a shaft 24 in which is a slipping ratchet or clutch 28. The shaft 24 is driven through bevel gears 23, 22 from a shaft 19 provided with brakes 21, 66 and driven through the mechanism of a change-bear box 18 from the main driving-shaft 15. A clutch 16 connects the shaft 15 to an internal-combustion engine 12 or to a steam, electric, compressed air, or hydraulic motor. The tension of the brake 66 can be varied by adjusting the spring tension device 69. One end of the shaft 19 is connected by @ coupling 43 to an oil pump 44 which is connected to an oil reservoir 47 by pipes 45, 46. A valve 48 is placed in one of the pipes and is normally open, but can be closed to cause the pump to act as a brake, should the other brakes fail to act. The cable is guided during winding &c. by a pulley 42 which moves along a shaft 39 driven through worm and bevel gearing by the winding drum 29. The worm &c. can be changed readily in order that cables of different diameters may be used. Grooved surge drums 53, 54 driven by gearing from the shaft 19 are mounted on ball or roller bearings on shafts 57, 52, respectively. The retaining pulley on the surge drums is arranged so that by eccentric adjustments it may be adapted to accommodate a cable of any diameter. Guidewheels 60, 61, 62, 63, 64 are placed adjacent the grooves in the drums 53, 54 and guide-pulleys 59, 42. A counterweighted leading-off frame 72 is rotatably mounted in bearings 70, 71 and has mounted in it a guide-pulley 73, two guide-pulleys 74, 75 with their peripheries in contact, and two parallel rollers 76, 77. An idler pulley 79 actuates a tension indicator 80. The controls of the clutches, brakes, &c. are all located on the same side of the frame. When hauling in the cable, the drum 29 is rotated to store the cable faster than the surge drums 53, 54 haul it in, but when the tension reaches a predetermined amount, relative movement between the shafts 24, 19 occurs, and the cable is wound at constant tension
Patent GB-555343-A (GB)
Title: Improvements in and applicable to concrete mixers and the like
IPC: B28C5/42
Filed: 1942-02-17
Abstract: 555,343. Concrete mixers. POTTER, E. (Chain Belt Co.). Feb. 17, 1942, No. 2082. [Class 86] A concrete mixer comprising a rotary drum 11 resting on rollers 12 mounted in a frame 13 in known manner is provided with a loading hopper 15 mounted for pivoting movement about bearings 17 from a discharging position, shown in full lines, to a loading position, shown in' dotted lines. In the latter position the hopper rests on an extension 13<SP>1</SP> of the frame 13, and its curved mouth 25 closely engages a curved plate 22 extending between a pair of vertical plates 21 arranged above a U-shaped shoot 18, the discharge end of which feeds into an opening in the drum 13, while in its discharging position the back wall of the hopper rests against a stop 23 fastened to the plates 21, and a part 24 of this wall bridges the curved plate 22. as shown. The hopper is operated by a toggle device comprising a bent link 26 pinned to arms 28 on a shaft 29 actuated by a hand lever 30. A water pipe may be arranged to pass through the space between the plates 21 and between the plate 22 and the drum.
Patent GB-1418171-A (GB)
Title: Pneumatic tyres
IPC: B60C11/16
Filed: 1973-01-15
Abstract: 1418171 Pneumatic tyres MICHELIN & CIE COMPAGNIE GENERALE DES ETABS MICHELIN 15 Jan 1973 2119/73 Addition to 1327471 Heading B7C A pneumatic tyre for use on roads covered with snow or ice, has a tread which comprises a central circumferential rib 1, two lateral circumferential ribs 14, 7, and two circumferential grooves 5, 6, each circumferential rib being formed by upstanding blocks, e.g. the blocks 2, 12, 15, 16, and having transverse grooves, e.g. the grooves 4, 10, 11, 17, extending into the circumferential ribs from the circumferential grooves, the transverse grooves being less deep than the circumferential grooves, and at least some transverse grooves extending completely across their respective lateral circumferential ribs. As shown, the circumferential grooves 5, 6 are of zig-zag form. The blocks 2 of the central circumferential rib 1 are separated by zig-zag cuts 2a and support one another. The transverse grooves 4 do not extend completely across the blocks 2 but leave uninterrupted portions 3. The blocks 12 of the lateral circumferential rib 7 are separated by transverse grooves 11; the blocks 12 are provided with transverse grooves 10 and recesses 13 for anti-skid spikes. The blocks 15, 16 of the lateral circumferential rib 14 are separated by transverse grooves 17 and provided with recesses 18 for anti-skid spikes. Some of the blocks 15, 16 may be provided with grooves similar to the grooves 10 in the blocks 12.
Patent GB-604746-A (GB)
Title: Composite selenium electrode
IPC: H01L21/105
Filed: 1944-02-07
Abstract: 604,746. Electrodeposition of selenium. STANDARD TELEPHONES & CABLES, Ltd. Feb. 7, 1944, No. 2273. Convention date, Jan. 5, 1943. [Class 41] [Also in Group V] A low-resistivity electrode suitable for the electro-deposition of selenium, comprises a mixture of selenium and one or more materials from the group carbon, gold, platinum, and palladium. The electrode may be used as an anode with a plating solution comprising SeO2 dissolved in dilute H2SO, H2SeO4, HNO3, or HCl, as described in Specification 592,165, or as a cathode in the anodic deposition from H2Se derived from dilute H2SO4 as described in Specification 579,851. A mixture of 10- 75 per cent by weight of carbon powder and the balance selenium powder is heated in a mould to a temperature causing sintering or preferably above the melting-point of selenium, and then allowed to cool. The selenium is then preferably reduced to metallic form by annealing below the melting-point. Alternatively, the mixture may be compressed with or without heating, in which case the carbon can be as low as 2.5 per cent. Other mixtures referred to are 20 per cent and 28.5 per cent of carbon. The finished electrode 16, Fig. 2, is fitted with a conducting 'core 17 of gold, platinum, or graphite, or'the core may enter the electrode so little as not to be immersed in the electrolyte, Fig. 4 (not shown). In Fig. 5, a porous, ceramic cup 20 is placed round a cast or compressed mixture 21 for use as an anode. Other porous containers comprise a bag of fibre glass, and a glass tube having a porous end-piece made of sintered glass, the porous container in each case serving to retain deposited carbon, (Figs. 6, 7, not shown).