baber/WOPTO huggingface dataset:
Patent GB-764808-A (GB)
Title: Method and apparatus for separating dry materials
IPC: B03B4/02
Filed: 1955-02-17
Abstract: 764,808. Pneumatic separating. WESTON, D., and MACPHERSON, A. R. Feb. 17, 1955 [April 30, 1954], No. 4819/55. Class 117. Dry particulate material such as a mixture of opened asbestos fibre, host rock and unopened fibre bundles is fed at 15 on to a vibrated deck 55 through which air is passed from rectangular passageways 43 leading from a box-like casing 11 connected to a blower 21. Dampers 44 control air flow through the material which advances as a bed towards the outlet 18 of the apparatus, and the bed is stratified with its upper layer consisting of opened asbestos fibres. A conduit 17 extends into the casing of the apparatus, and a suction fan 20 draws the opened fibres from the bed at the outlet end of the apparatus. The fibre laden air stream passes through a cyclone 19 by which the fibres are collected, and the remaining portion of the bed is gravity discharged through an air sealed discharge shoot 18b. A frame 10 supports the apparatus which includes a vibrating device 14 connected by arms 31 to a casing section 13 containing the deck 55. The vibrating parts are freely suspended from the frame by cables 37 and 39, and thick foam rubber seals 22, 23 are provided between the sections 13 and an upper hood section 12 and the casing 11. The deck 55 comprises closely spaced longitudinally extending bars, and the hood 12 includes a vertically adjustable roof section 66. An air lock 16 is arranged at the feed inlet end, and by adjustment of the blower 21, suction fan 20 and dampers 44 a sub-atmospheric pressure is maintained within the apparatus.
Patent GB-329281-A (GB)
Title: Improvements in and connected with couplings for railway vehicles
IPC: B61G9/24
Filed: 1929-02-13
Abstract: 329,281. Stone & Co., Ltd., J., (Richards, W. F.). Feb. 13, 1929. Combined buffer and draw-gear.-In a railway vehicle coupling of the, swivel butt type the swivel pin c connects the coupler stem f with a swivel block a slidable rearwardly under buffing within a hood or box of a yoke h formed with clearance to enable the block to be canted slightly in a vertical plane. The swivel block a has a central vertical hole b for the pin c, horizontal recesses d, d<1>, for the circular hubs e on the, forked rear end of the coupler stem f and a central horizontal recess g with semicircular ends for a key m. The yoke h comprises top and bottom walls j connected at the rear by a vertical wall j<1> and at the front by vertical side walls k forming an openended box at the forward end of the yoke, in which the, swivel block a is arranged. The walls j are recessed or flared at the forward end to allow the block to, be canted. The. key m passes through slots o in longitudinal members n of the carriage underframe, slots l in the side walls k of the yoke, the recess g in the block a and a recess p in the coupler stem f and engages a notch q in the swivel pin c to retain the pin in position. The pull of the coupler stem f is transmitted by the swivel pin c to the block a and thence through the key m to the yoke h which compresses the springs s by a rear follower plate t' the pull being effected through a forward follower plate t and draft lugs u. Under buffing the rearward movement of the coupler stem is transmitted by the hubs e to the swivel block which presses against the follower plate t, compressing the springs and forcing the rear follower plate t<1> against buffing lugs u<1>. The swivel pin c is retained in position during assembly before insertion of the key m by the bottom wall of the yoke. Fig. 3 shows means for locking the pin c to the block comprising slotted lugs x on the underside of the block supporting a perforated plate y through which the reduced end of the pin c passes and is secured by a lynch pin z. The casting v is formed with clearance at the lower part 5 for the lugs 2 on the coupler head. Flats r may be formed on the swivel pin and the hole b shaped accordingly to prevent the pin from turning.
Patent GB-1076505-A (GB)
Title: A pop-up waste or drain stopper
IPC: E03C1/23
Filed: 1966-02-03
Abstract: 1,076,505. Pop-up drain stoppers. WALLACEBURG BRASS Ltd. Feb. 3, 1966 [Feb. 19, 1965], No. 4874/66. Heading A4N. A self-contained waste plug assembly comprising a substanially cylindrical housing 21 forming a flow way adapted to be installed in a waste outlet, and having a stopper 22 for blocking flow through the housing, a spring 41 adapted to move and maintain the stopper in the fully opened position permitting flow through the housing, a catch 29 to secure the stopper in a fully closed flow blocking position against the force of the spring, and means to release the catch in the form of a push button 35 mounted centrally on the stopper and having a cam-surface 37 adapted to co-operate with a cam-surface 33 in the said catch means, to release the catch means and move the stopper into the open position.
Patent GB-465541-A (GB)
Title: Door brake
IPC: E05F3/00
Filed: 1936-02-18
Abstract: 465,541. Brakes. VADASZ, E. Feb. 18, 1936, No. 4895. [Class 103 (i)] [Also in Group XXV] Doors, particularly of vehicles, are prevented from swinging out uncontrolledly by the provision of a brake which acts during the opening movement of the door unless specially released from the door handle or an adjacent control device. In the form shown, the brake device, mounted on the door, comprises a drum 4, 5, containing a spiral return spring, connected to the door frame by a cable 15 passing over appropriate pulleys, and a brake drum 9 connected to the drum 5 by ratchets 14 which drive it only during opening of the door ; the brake band 24 is tensioned adjustably by a spring 23 to provide the required resistance to opening of the door, and its tension can be relieved, to allow free opening, by a lever 28 which engages the brake band and is operated by a cord 27 from the door handle. Any other form of free-wheel coupling may be employed in place of the ratchets 14, and the coupling may act axially instead of radially ; the braking action may be removed by means freeing this coupling instead of slackening the brake band. Other forms of brake may be used. The device may be placed on the frame instead of the door, and rigid connections may be used in place of the cord ; the connection preferably includes means to limit the opening of the door. Release of the brake may be performed by hydraulic or electrical means in place of the cord 27 or other mechanical means.
Patent GB-1176082-A (GB)
Title: Device for Bringing Two Non-Rotary GearWheels Into Engagement With One Another on a Lapping Machine.
IPC: B23F23/12
Filed: 1967-02-01
Abstract: 1,176,082. Grinding. OERLIKON-BUHRLE HOLDING Ltd. 1 Feb., 1967 [1 Feb., 1966], No. 4964/67. Heading B3D. The subject-matter of the present Specification is similar to that of Specification 1,176,081 but the claims are directed to the control mechanism for rotating the first non-rotating gearwheel if, when it is moved towards the second non-rotating gear-wheel for a lapping operation, the tips of the teeth engage, the mechanism comprising a control member formed as a rolling segment having a friction lining, a control disc driven by the control member, a first drive member for actuation of the control member, a second drive member for passing the member against the disc, and means for adjusting the magnitude of the movements of the mechanism. The operation of the machine also differs from that of Specification 1,176,081 in that upon engagement of the tips of the teeth of the gear-wheels when the first gear-wheel is moved towards the second, the first gear-wheel is retracted from the second while the control mechanism effects a small rotation thereof so that, upon subsequent advancing of the first gear-wheel, its teeth engage the gaps between those of the second gearwheel.
Patent GB-543115-A (GB)
Title: Improvements in pedestals for pit tubs and similar vehicles
IPC: B61F17/08
Filed: 1941-04-18
Abstract: 543,115. Axle boxes; lubricating. STEER, G. K. April 18, 1941, No. 5053. [Classes 12 (i) and 12 (iii)] A pit-tub pedestal c has an axle-embracing reservoir e for lubricant conveyed to the axle by means suspended in the reservoir, the conveying means consisting of pads h mounted on a carrier j resiliently suspended from the end walls of the reservoir and held in contact with the side walls and the axle. The carrier comprises a plate slotted from opposite edges to form lugs some of which carry the pads whilst the remainder carry the supporting springs k. The reservoir is secured by bolts f passing through the cheeks d of the pedestal c. The pedestal bearing may be grooved at n to collect lubricant from the axle.
Patent GB-1455185-A (GB)
Title: Adhesive process and apparatus
IPC: A43D25/18
Filed: 1974-02-04
Abstract: 1455185 Coating apparatus BRITISH UNITED SHOE MACHINERY CO Ltd 4 Feb 1974 [5 Feb 1973 19 Nov 1973] 05054/74 Heading B2L [Also in Division A3] A band 14 of adhesive composition is applied as a series of overlapping loops 18 to a surface 20 by directing a filament 26 of adhesive composition from orifice spaced from the surface and imparting rotation to the filament while causing the orifice to move relative to the surface. As shown rotation is imparted to the filament supplied through an axial bore 36 of the nozzle, by air supplied through two offset inlets 52 to a conical annular passage 44 terminating in the orifice 46. A single offset inlet 52 or guide vanes may alternatively impart the rotation to the air.  The adhesive composition may be a thermoplastic synthetic polymeric resin or a solvent based adhesive, examples being given, and may be heated by the air stream.
Patent GB-573959-A (GB)
Title: Improvements relating to the testing of contact rectifiers
IPC: H01L21/00
Filed: 1943-03-29
Abstract: 573,959. Resistance measurements. BRITISH THOMSON-HOUSTON CO., Ltd., and DYSON, J. March 29, 1943, No. 5077. [Class 37] A continuous indication of the inverse resistance of a contact rectifier 1 is obtained by connecting across the rectifier a source 2 of recurrent voltage impulses in series with a second rectifier 3 poled to pass inverse current through the rectifier to be tested ; and a measuring instrument 5 including a source of voltage is connected in series with a third rectifier 4 so poled as to prevent current from the source 2 passing through the measuring instrument. The circuit is such that all three rectifiers tend to pass current towards a common point. The two auxiliary rectifiers 3, 4 may be contact rectifiers or diodes.
Patent GB-656474-A (GB)
Title: Apparatus for measuring or controlling a quantity
IPC: G05D23/275
Filed: 1948-02-20
Abstract: 656,474. Automatic temperature control systems. DRAYTON REGULATOR & INSTRUMENT CO., Ltd., and GROVER, R. V. Feb. 20, 1948, No. 5080. [Class 38 (iv)] [Also in Group XXXVIII] Apparatus for measuring and/or controlling a variable quantity comprises a metering device 1, carrying a pointer, responsive to the quantity and adapted to operate a mercury switch 5, thus making a circuit to a heater 10 on a bimetal strip 7 and heater 11 on a further bimetal strip 17, which has a compensating lag 18 and operates a second mercury switch 20 which in turn operate controlling or measuring apparatus. As applied to controlling the temperature of a room, upon a rise in temperature from a predetermined value the device 1 closes the mercury switch 5 and thus energizes the heaters 10 and 11. As heater 10 heats the strip 7, it moves a pivot 6 of the mercury switch 5 in such a manner as to break the heater circuit by restoring the switch to the off position. A series of electrical impulses thus pass through the heaters as long as the temperature is above the required value. The heat inertia of the strip 17 is made much greater than that of the strip 7 so that it responds only to the time integral of the electric impulses to operate the second mercury switch 20 by means of levers 19 so as to energize a motor 21 to open a cooling valve to restore the temperature to the predetermined value, and at the same time rotate a cam 26 to restore the switch 20 to the off position. As the temperature falls, the deflection of the device 1 is reduced, thus lessening the duration of impulses applied to the heaters so that the strip 17 cools and the mercury switch 20 is operated in the other direction, the motor 21 being energized in a sense to close the cooling valve.
Patent GB-1304263-A (GB)
IPC: C07J1/00
Filed: 1970-02-03
Abstract: 1304263 6,7 - Disubstituted - estratrienes SCHERING AG 3 Feb 1970 [6 Feb 1969] 5104/70 Heading C2U Novel steroids of the formula (in which R is H, alkyl or acyl; X is F, Cl, Br, OH, O-acyl or 0-alkyl; Y is Cl or Br, but is not Cl when X is Cl; and Z is oxo, H(#-OH), H(#-O-alkyl), H(#-O-acyl), R 1 (#-OH) or R 1 (#- O-acyl) where R 1  is a saturated or unsaturated C 1-5  hydrocarbon group) are prepared from steroids of the formula (in which Z<SP>1</SP> is oxo, H(#-O-alkyl) or H(#-O-acyl)) by reaction with an agent capable of liberating a positive chlorine or bromine atom and at the same time with a nucleophilic agent capable of providing the group X, with subsequent standard transformations in the 17-position if desired. Suitable nucleophilic agents are (1) water, in the presence of a strong acid and in an inert solvent, to provide OH; (2) DMF in the presence of an anhydrous acid, to provide OCOH; (3) a carboxylic acid in the presence of an anhydrous acid, to provide O-acyl; (4) an alcohol in the presence of an anhydrous acid, to provide O-alkyl; (5) a chloride in the presence of an anhydrous carboxylic acid and a strong anhydrous acid, or HCl in an inert anhydrous solvent, to provide Cl; (6) similar reagents to (5), to provide Br; and (7) similar reagents to (5), to provide F. Positive halogen is preferably provided by N-chloro- or bromo-acetamide or - succinimide. The steroids of the invention are stated to possess strong estrogenic and ovulation-inhibiting properties, and they may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-361746-A (GB)
Title: Improvements in pneumatic power transmission apparatus
IPC: B61C9/22
Filed: 1931-02-18
Abstract: 361,746. Combustion-product plant. MOON, L. F., Houghton, Bassett, Southampton. Feb. 18, 1931, No. 5127. [Class 7 (i).] In a pneumatic power-transmission apparatus for locomotives '&c. in which an internal-combustion engine drives an air compressor the compressed air from which drives an air engine, the exhaust gases from the internal-combustion engine are passed through a coil or grid .5, disposed within the head of the compressed-air engine cylinder 6, and then through the cylinder jacket 7. The cylinder 6 has mechanically-operated inlet and exhaust valves 8, 9 and has also an automatic valve 10 which admits some of the exhaust gases prior to the opening of the inlet valve 8.
Patent GB-784481-A (GB)
Title: Improvements relating to precombustion-chamber diesel engines
IPC: F02B19/14
Filed: 1956-02-20
Abstract: 784,481. Combustion chambers. DAIMLER-BENZ AKT.-GES. Feb. 20, 1956 [Feb. 19, 1955], No. 5171/56. Class 7(3) An approximately spherical precombustion chamber 4 is provided, immediately above the passage 5 leading to the cylinder with a part-spherical deflector element 8 mounted on a pin 7 above which is positioned an incandescent filament 10 controlled by a delay action switch, which, after being closed at starting, opens automatically after a predetermined period. The end of the filament 10 forms a loop 12 in the path of the fuel jet 16, part of which strikes the filament and is vaporized whilst the remainder strikes the deflector 8 and is reflected back towards the filament. The delay-action switch may be provided with means for setting a longer or shorter period of incandenscence depending upon the outside temperature. Reference has been directed by the Comptroller to Specifications 714,126 and 717,867.
Patent GB-1430346-A (GB)
Title: Dosing mechanism for a flocking device
IPC: B05C19/00
Filed: 1974-02-05
Abstract: 1430346 Fibre dosing mechanism for a flocking device U MAAG and E SCHENK (trading as MAAG & SCHENK] 5 Feb 1974 [21 Feb 1973] 05172/74 Heading D1N A dosing mechanism for a flocking device comprises a perforated screen 12 over which a brush 13 or similar passes, the holes in the screen 12 each have a bent up edge. The bent up edges face the direction from which the brush advances thus distorting the bristles 15 to give a flicking action to project fibres 18 through the holes. The screen 12 is suitably made from expanded metal.
Patent GB-623654-A (GB)
Title: Improvements in and relating to concrete and the like mixers
IPC: B28C5/20
Filed: 1947-02-25
Abstract: 623,654. Mixing-machines. KING, A. G., and HAWKINS. G. A. Feb. 25, 1947, No. 5400. [Class 86] A horizontal rotary container H for a concrete mixer is mounted on a wheeled base, and driven by the same petrol engine as the chassis. The container H is fed with the cement and sand from a divided hopper shown in Fig. 3, the two portions a, b being in the proportions 2:1. An inlet c is provided for the portion a, and d for b; an outlet e opens both portions to the mixer. The openings c, d, e are closed by plates h, m attached to levers g, l which pivot on a central shaft j and are both moved by a lever f under the control of the operator. The arrangement is such that the opening e remains closed whilst either c or d is open. The portions a, b are filled automatically by scoops mounted on spring- pressed rods t attached to the container. A cam n actuates the rods t to move the open face of the scoop into engagement with the hopper so that their contents are not emptied until the scoops reach either inlet c or d.
Patent GB-726696-A (GB)
Title: Improvements in or relating to tracks for conveyor systems
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: E01B25/24
Filed: 1953-02-26
Abstract: 726,696. Overhead conveyer tracks. KING, Ltd., G. W. Jan. 7, 1954 [Feb. 26, 1953], No. 5430/53. Class 104 (2). Cover strips 10 of hardened or toughened steel are secured to the mild steel members 12 forming an overhead conveyer track by the strips 10 being formed with lugs 11 which enter and project through corresponding slots 13 in the track members 12, the projecting portions of the lugs being then twisted to lock the strip 10 in position.
Patent GB-1465010-A (GB)
Title: Process for attaching a lead member to a semi-conductor device and product thereof
IPC: H01L23/488
Filed: 1975-02-07
Abstract: 1465010 Semi-conductor devices GENERAL INSTRUMENT CORP 7 Feb 1975 [24 April 1974] 5430/75 Heading H1K [Also in Division B3]  A lead 40 having a joining surface 42 is attached to a semi-conductor device 12 via a contact member 20 of a refractory metal having a joining surface 24, by using a brazing alloy preform 30 comprising about 80 to 89% Cu, about 5 to 15% Ag and about 4 to 6% P by weight. The semi-conductor device 12 has two aluminized or gilded layers 16 with contact members 20 attached to them by brazing in an inert atmosphere. The device may be passivated by enveloping it in glass or plastics. The refractory material of the contact member 20 may comprise Mo, W or Ta and the lead 40 may comprise Cu or Ag.
Patent GB-228725-A (GB)
Title: Improvements in actuating devices for fluid controllers
IPC: F16K31/524
Filed: 1924-03-03
Abstract: 228,725. Lundberg, E. K. H. March 3, 1924. Actuating - mechanism; valves controlled by pilot or relay valves. - A cam actuating device for valves adapted to deliver predetermined quantities of fluid has a cam with a number of corners or projections adapted to be rotated continuously in one or other direction to actuate the valve directly or indirectly and is provided with a locking or loading device so that the cam is always returned to its inoperative position. The Figures show the device applied to a valve actuated by fluid pressure under the control of an auxiliary valve 17. The square cam 4 is mounted on a shaft 3 provided with a sealing collar 6 and with an actuating handle 7. The opposite end of the shaft is formed with a square 5 the faces of which make an angle of 22.5‹ with those of the cam and are acted on by a pair of plungers 9 guided in sockets 8 and acted on by springs 10. The cam may act directly on the valve member or may act through an adjustable spindle 16 guided in a bridge 12. The cam may be cylindrical with one or more projections, wing-shaped, starshaped or polygonal and the locking member correspondingly formed. Fluid pressure or spring strips may be used to act on the plungers of the locking device. The end of the shaft may have diagonal grooves engaged by wedge-shaped members.
Patent GB-248387-A (GB)
Title: Improvements in or relating to manometers for liquid level indicators
IPC: G01F23/16
Filed: 1926-02-26
Abstract: 248,387. Automotive Gauge Co., Inc., (Assignees of Kauffmann, F.). Feb. 26, 1925, [Convention date]. Liquid-level pressure gauges. - Comprises an indicating tube 12 and liquid reservoir 14, Fig. 2, communicating therewith, the reservoir being provided with a baffle plate or plates 24, 25 above the normal liquid level therein and a screen 28 extending across the reservoir to prevent liquid splashing or bubbling over into the air conduit communicating with the tank in which the head is to be measured. The baffle plates are inclined in opposite directions and the screen 28 may be placed between them. In a modification shown in Fig. 5, the reservoir chamber proper 30 is substantially spherical, that is with a wider cross-section in the middle than at the top or bottom in order to decrease the manometer readings when the tank is nearly full or nearly empty. In this case a screen 33 and one inclined and perforated baffle plate 35 are used. The conduit 6 is also provided with an angular extension where it enters the reservoir which damps the current of air coming into and out of the reservoir and assists in keeping liquid out of the conduit 6. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the provision of a luminous float to enable the height of liquid in the glass tube 12 to be seen in the dark. This subject-matter does not appear in the Specification as accepted.
Patent GB-374397-A (GB)
Title: Improvements in or relating to the manufacture of continuous lengths of metal or metal alloys
IPC: B23K20/00
Filed: 1932-02-24
Abstract: 374,397. Squirting. MANNESMANNRÍHREN-WERKE, 1B, Berger Ufer, D³sseldorf, Germany. Feb. 24, 1932, No. 5556. Convention date, April 20, 1931. [Class 83 (iv).] A hot, hollow or solid billet k of iron or iron alloy is covered internally, or externally, or both, with iron, iron alloy, or other metal m, s at approximately the same temperature, before extrusion into rod or tube form, Fig. 3c. A bar so covered may have a separating layer such as an oxide or aluminium bronze between the core and covering to enable them to be separated after extrusion. Specification 248,972, [Class 83 (iv), Metals, Working], is referred to.
Patent GB-1097645-A (GB)
Title: Improvements in or relating to fluid-flow control valves
IPC: F16K1/22
Filed: 1966-02-09
Abstract: 1,097,645. Valves. M. C. E. HENRION. Feb. 9, 1966 [Feb. 18, 1965], No. 5642/66. Heading F2V. A butterfly valve having a peripheral lining 21 and a sleeve 24 co-operating with the lining to ensure fluid tightness is characterized in that the spindle B has a recess to receive the valve member and of sufficient depth to locate the median plane of the valve member on the axis of rotation, the spindle at each end of the recess having a sector-shaped cross-section to co-operate with the sleeve and limit rotation to one-quarter turn. Threaded radial holes in the recess receive securing bolts for the valve member while the sleeve is secured by bolts 23 in a recess 22 in the body A. The lining 21 is of synthetic plastics material. Bushes of anti-friction material are provided at each end of the spindle which is provided with a stuffing- box type seal at the end engaged by the valve control means.