baber/WOPTO huggingface dataset:
Patent GB-1085511-A (GB)
Title: Hydraulic reciprocating pumps
Inventor: FREEMAN FRANK GEORGE
IPC: F04B1/14
Filed: 1964-07-09
Abstract: 1,085,511. Reciprocating pumps. JOSEPH LUCAS (INDUSTRIES) Ltd. April 26, 1965 [July 9, 1964], No. 28311/64. Heading F1A. In a swash-plate pump, e. g. for corrosive liquids, having chambers 11 and 12 for pumped liquid and lubricant, respectively, and pistons 20 working in cylinders 16 to discharge liquid from chamber 11 through delivery valves 15, drain galleries 27, 28 are provided for pumped liquid and lubricant, respectively, and are separated from each other and the chambers 11 and 12 by seals 29.
Patent GB-427023-A (GB)
Title: Improvements in or connected with electrical apparatus for heating air
IPC: F24H3/00
Filed: 1933-10-13
Abstract: 427,023. Electric stoves. BURNSIDE, G. B., Fairhill, Dullatur, Dumbartonshire. Oct. 13, 1933, No. 28319. [Class 39 (iii)] An electrical apparatus for heating air comprises a number of units A containing heating elements E in upwardly extending ducts B, each unit being complete in itself and so constructed that, when assembled to form a heating apparatus of the required strength, the air delivery outlets present the appearance of a single outlet. The ducts B are surrounded by passages C and C<1> not containing heating elements as in the heater described in Specification 414,475. The heaters are secured together by bolts 4 passing through projections 3 and the grating-covered outlets of the unit present the appearance of a single outlet extending across the top of the front of the apparatus. The assemblage of units may be covered by a casing having inlet and outlet ports. The elements E are supported and electrically connected by pin and socket connections with cross-bars 6 ; the latter are provided with pins 7 and sockets 8 so that adjacent units may be electrically connected when placed together.
Patent GB-443506-A (GB)
Title: Lawn mower with adjustable rotary knife-shaft mounting
IPC: A01D34/54
Filed: 1934-10-03
Abstract: 443,506. Lawn - mowers. ABNER & CO., GES., Ohligs, Solingen, Germany. Oct. 3, 1934, No. 28345. Convention date, Oct. 17, 1933. [Class 6 (ii)] In a lawn-mower in which the cutter shaft is carried by arms mounted on the side cheeks and adjustable by screw bolts and co-operating nut members, the movement of the cutter shaft towards the stationary knife takes place against the action of springs, the nut members co-operating with non-rotatable locking-members which automatically lock them in adjusted positions. Each screw bolt 16 is mounted in stationary guides 15, 18 on the corresponding cheek 1 and is connected to a pressing member or nut 13 which adjusts the pivoted shaft-carrying arm 5, a spring 19 surrounding the bolt between the carrying arm 5 and the lower guide 18, so as to be stressed increasingly on depression of the arm 5. A member 9 is mounted to slide, but not rotate, in an elongated hole in a bracket 7 on the arm 5, and is radially grooved to engage corresponding ribs or teeth on the lower end of the nut 13 to lock it against rotation, the head of the bolt 16 being non- rotatably mounted in the lower guide 18. The upper guide bracket 15 forms a reinforcing rib on the cheek 1, and serves as a support for the pivoted handle-carrying stirrup 24. The tubular nut 13 is provided with a handwheel having a knurled edge. Its upper surface may be marked with an arrow and the word " adjust " to indicate the direction in which it should be rotated for adjustment purposes, and with division marks to indicate the angle through which it is moved. The angle may also be ascertained by counting the number of clicks made by the teeth on the nut 13 and locking-member 9.
Patent GB-1439956-A (GB)
Title: Electrical machines
IPC: H02K9/193
Filed: 1973-06-14
Abstract: 1439956 Seals KRAFTWERK UNION AG 14 June 1973 [14 June 1972] 28468/73 Heading F2B [Also in Division H2] A turbogenerator having a liquid cooled rotor 1 mounted in a gas-filled, gas-tight, housing 5 includes an annular liquid coolant collecting chamber 36 which opens on to the rotor shaft and which is bounded by a casing 65 (Fig. 2) within the housing 5, the chamber 36 being made liquid-tight with respect to the rotor shaft by means of an inflow of pressurized gas at the extremities 62, 63 of two sealing glands 38b, 38a at the ends of the chamber 36, the gas flowing in the arrowed direction 61 through the action of a rotor fan 12a. The gas, preferably hydrogen, flows from a chamber 39 in each gland back to the suction side of the fan 12a via a pipe system 40 and a drying system 44, 42, the gas providing supplementary cooling in the machine and giving up its heat at coolers 16. A further rotor fan 12b produces further gas circulation within the machine. The liquid coolant, i.e. water, flows from a tank 19 to a shaft pump 20 via a line 6, and some then passes to a ring distributer 17 for cooling a stator winding 4, and some to an exciter generator 24 via a shaft bore 22 and a bearing 23. The latter liquid proceeds through a bearing 25 of the main generator to a chamber 27 and set of radial ducts 26, and then flows via hoses 30 and tubes 29 to the rotor end turns 28 and rotor winding 3. From the opposite end turns 31, it passes to the chamber 36 by way of further tubes and hoses 32/33, a chamber 34, and an annular duct 35, and from chamber 36 it drains to a vessel 45 for re-circulation. The glands 38a, 38b include flowback chambers 54 which allow any water which flows past axially inward extremities 53 of the glands to return to chamber 36 via bores 55 in the lower parts of the seals.
Patent GB-1344710-A (GB)
Title: Process for producing a support for a photographic material
IPC: G03C1/93
Filed: 1971-06-17
Abstract: 1344710 Coated sheet materials FUJI PHOTO FILM CO Ltd 17 June 1971 [17 June 1970] 28472/71 Heading B2E A photographic support material is made by depositing on the surface of a base with a polyolefinic surface, a subcoat layer containing (a) a resin capable of adhering to a subsequently applied photographic emulsion which resin consists of gelatin, a modified gelatin, a vinyl copolymer containing itaconic acid, a vinyl copolymer containing maleic anhydride, or polyvinyl pyrrolidone and (b) a polyethylene, and then heating the layer. The layer may be formed by coating the surface successively with a mixture of an aqueous solution or suspension in a mixed aqueous organic solvent of the resin followed by an aqueous suspension of polyethylene. The support may be a polyolefinic film or a polyolefin-coated paper. Examples describe the application of silver halide emulsions to the prepared supports.
Patent GB-603696-A (GB)
Title: Improvements in hydraulic control devices
IPC: B64C25/22
Filed: 1945-10-29
Abstract: 603,696. Hydraulic machines. OLAER PATENT CO. Oct. 29, 1945, No. 28552. Convention date, Feb. 23, 1940. [Class 69 (ii)] In a device of the kind described in Specification 514,429 for the fluid pressure control of mechanisms adapted to occupy either of two different positions, such as aircraft retractable undercarriages, the emergency supply line 27 contains liquid subjected to an elastic pressure, for instance gaseous pressure, and is fitted with a cock 28 located in the liquid. The cock is coupled with the distributing valve 11 for controlling the feed and discharge of the main lines 14 and 30 in such a manner that the cock is automatically opened and closed respectively as the main line 14 is being fed with liquid under pressure and connected to the discharge, but that, in case of serious drop of pressure in the line 14 when the latter should be fed with liquid under pressure, the cock is left opened even when the main line 14 is subsequently connected to the discharge. The coupling comprises a piston 52 working in a cylinder 47 connected by a flexible pipe 48 to main line 14. The piston engages projections 56, 57 on a part 53 connected to the cock 28. The main line 14 is connected to feed when the arm 11a is moved to the right which causes piston 52 to engage a projection 56 to open the cock 28 whatever the vertical position of the said piston. When the arm is moved to the left to connect the main 14 to discharge, the piston engages the projection 57 and causes the cock to close, but if pressure in the main 14 falls, the piston 52 drops clear of the projection 57 so that there is not movement of the part 53 to close the cock.
Patent GB-655747-A (GB)
Title: Improvements relating to circuit arrangements for amplifying amplitude modulated oscillations
Inventor: LEYTON ERIC MCPHAIL
IPC: H03F1/33
Filed: 1948-11-04
Abstract: 655,747. Valve amplifying cicruits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Nov. 4, 1948, No. 28658. [Classes 40 (v) and 40 (vi)] In a valve amplifier operating with grid current, the variations in input impedance thereby caused are reduced by means of a bias derived in accordance with the grid current. As applied to a grounded-grid amplifier in which the input is applied to the cathode circuit 7, the grid is earthed for signal frequencies by means of a series resonant circuit 13, 14 and derives a fixed negative bias over resistance 14. Grid current produces a voltage drop in the resistance 14 which biasses the valve back proportionately and so compensates for changes in the damping on the circuit 7. A grid leak may similarly be used in a groundedcathode amplifier, Fig. 4 (not shown), to prevent variation in input impedance consequent upon grid current flow. The range of operation may be increased by use of a non-linear resistance, and the variable bias may alternatively be produced by rectification of the applied oscillations.
Patent GB-978984-A (GB)
Title: Method and apparatus for the vapour deposition of patterns upon a carrier surface
IPC: C23C14/04
Filed: 1963-07-19
Abstract: <PICT:0978984/C6-C7/1> <PICT:0978984/C6-C7/2> Predetermined patterns of a material, particularly electrical components including electrodes or supply leads of semi-conductor or metallic materials are deposited on a carrier surface, e.g. of ceramic or semi-conductor, by passing the vaporized material through a perforated mask between the material vaporizing source and the carrier surface and simultaneously moving the mask and/or vaporizing source relatively to the carrier surface in a plane parallel thereto in guided directions linearly corresponding to the shape of a desired pattern.  As shown in Fig. 1, to deposit a concentric electrode arrangement upon a slice of semi-conductor material 50, e.g. Ge or Si, a mask 52 having only one circular hole 53 is spaced at a constant distance a from the slice surface, e.g. by a distance ring 51, and a vaporized stream of metal I, e.g. Al, is passed under high vacuum from a source (not shown) axially through the hole to form the emitter electrode at 56. Then, from a second source (not shown) laterally displaced from the first, oblique vaporizing is effected by a stream of metal vapour II, e.g. Au, the second source being moved circularly in a plane parallel to the slice surface to form the base electrode at 54.  In practice a plurality of holes 53 are spaced on the mask to produce a corresponding number of transistor electrode sets which are subsequently divided.  Elliptical, rectangular or square holes may be spaced in the mask.  The emitter electrode may be a spot, disc, or cross-shaped.  Alternatively as shown in Fig. 4, using a fixed vaporizing source (not shown) and with the carrier surface, e.g. slice of semi-conductor material 6, stationary, the perforated mask 7 is attached to an annular mounting plate 5 linked perpendicularly to bars 21, 22 and 30 suspended from fixed points (26 and 31 shown), which bars are connected at their opposite ends to a drive and guide plate 11 operated by drive and guide shafts 18 and 19 to provide a pantographic transmission which moves the mask in a desired configuration.  An intermediate mask 34 provided with spaced apertures corresponding in number and position to those of the mask 7, but being larger in size, may be disposed on the carrier surface and rigidly fixed at points 28 and 29.  Specification 907,999 is referred to.
Patent GB-1217605-A (GB)
Title: Improvements in or relating to a butterfly valve
IPC: F16K27/02
Filed: 1968-06-17
Abstract: 1,217,605. Valves; pipe couplings. INTERCONSULT A.B. 17 June, 1968 [19 June, 1967], No. 28746/68. Headings F2G and F2V. The housing of a butterfly valve closure member 2, is formed from a relatively short rigid ring 6, which has diametrically opposed bores 7, and a relatively long tubular resilient lining 1 which is disposed within the ring and whose ends are adapted to be threaded over associated pipe ends 16 and secured thereto by tensioning bands 17. In addition to forming the lining with an outer diameter which is somewhat greater than the inner diameter of the ring so that the latter causes stressing of the lining and so retains it, further retaining means may be provided, these being in the form of two annular grooves or ribs formed on the ring inner periphery and adjacent its ends. Rotation of the valve member is effected by means of upper and lower pivots, 3 and 4 respectively, both of which extend with a sealing fit through the lining. The lower pivot has the closure member welded to it and is bevelled at 19 in order to facilitate its insertion by tilting, into the lower bore 7 prior to the upper pivot being bolted to the other side of the closure member.
Patent GB-299612-A (GB)
Title: Improvements in, or relating to, expanding bracelets
IPC: A44C5/08
Filed: 1927-10-29
Abstract: 299,612. Timings, F. C. Oct. 29, 1927. Bracelets.-Stop means are provided at the centres of the spring-containing links b of an expansible bracelet to relieve the cross-pins d, which connect the side plates of the outer links e, from pressure of the springs c when the bracelet is contracted. The stop means may comprise ears a, a<1> formed at or about the middles of the edges of the channelled pressings which constitute the links b, there being sufficient space between them to permit passage of the pins d but not of the springs c.
Patent GB-676685-A (GB)
Title: Improvements in or relating to methods of and means for jointing or uniting synthetic materials
IPC: H02G15/00
Filed: 1948-11-05
Abstract: Damaged or interrupted parts of the insulation or sheathing of plastic material of an electric conduit are reconstituted by heating and atomizing by means of a gun, thermoplastic material and projecting this on to the parts.  The material may be the same as that of the insulation or sheathing.
Patent GB-1263374-A (GB)
Title: Poultry plucking machine
Inventor: SEBESTYEN GYORGY
IPC: A22C21/02
Filed: 1969-06-06
Abstract: 1,263,374. Poultry plucking machines. BAROMFIIPARI ORSZAGOS VALLALAT. 6 June, 1969 [15 June, 1968], No. 28843/69. Heading A2U.  In a poultry plucking machine of the kind comprising a number of rotatable plucking units arranged on opposite sides of the path of the poultry and each comprising a plurality of resilient fingers 5 projecting out from the plane of one or more discs, a pair of concentric discs is employed for each unit, the outer disc 4 being of annular form and surrounding the inner disc 3, and the two discs being driven at different angular speeds or/and in opposite directions of rotation. The discs are arranged to lie approximately in the same plane but means is provided for relative adjustment of the discs in the axial direction and also in the vertical direction to suit the form of the poultry being plucked. Position recorders 13, 14 record the positions of relative adjustment being employed. The poultry are suspended from a travelling conveyer 12 traversing an overhead rail 11. The plucking fingers are preferably covered with a herring bone pattern of ribs (6, Fig. 4, not shown).
Patent GB-1301157-A (GB)
Title: Development apparatus for electrostatic images
IPC: G03G15/08
Filed: 1970-06-15
Abstract: 1301157 Developing electrostatic images XEROX CORP 15 June 1970 [16 June 1969] 28847/70 Heading G2H An apparatus for developing latent electrostatic images comprises an arcuate plate 36 positioned concentric with a belt 10 bearing the latent image, a developing grid-electrode 37 between the belt 10 and the plate 36, a dry powder developer recirculating system 34 for introducing developer to the upper end of the plate 36 and a vibratory means resiliently coupled to the plate 36 to fluidize the developing material. The vibratory means, Fig.3, comprises an electromagnetic drive 80 coupled to mounting plates 39 of the plate 36 and grid-electrode 37 by a drive shaft 84 which is oscillated, with the assistance of springs 90, 93, at the resonant frequency of the system, which is supported on a base plate 74 by flexible members 72, 76. The electromagnetic drive 80 may be replaced by a pneumatic drive.
Patent GB-533615-A (GB)
Title: A counting or registering device for use in knitting
IPC: D04B35/00
Filed: 1939-10-30
Abstract: 533,615. Knitting accessories. LANGBART, R. V., and KEIZER, I. Oct. 30, 1939, No. 28962. Addition to 520,604. [Class 74 (ii)] [Also in Group XIX] A counting or registering device for use in knitting, as described in the parent Specification, has a modified form of support thereby reducing the number of component parts. As shown in Figs. 1 and 4, the device comprises a support a of metal, synthetic resin or other material, a positioning spring b and a pair of milled registering discs c. The plate a has a flat base with upturned apertured ends a<SP>1</SP> for the passage of the needle d. The spring b has a flat base and curved portions b<SP>1</SP> through which the needle passes and which engage the ends a'. The registering discs c which are viewable through apertures in the base plate, are supported on indent pivots c<SP>1</SP> and extend beyond the edge of the plate for manipulative purposes. The plate itself may act as a spring which may be provided with lugs to engage the surfaces of the registering discs. Specification 520,615, [Group XXXVI], is referred to.
Patent GB-634150-A (GB)
Title: Improvements in or relating to distilling bituminous material to make coke
IPC: C10B1/10
Filed: 1945-11-01
Abstract: <PICT:0634150/III/1> A coke-like product is produced from bituminous material, particularly liquid pitch, by maintaining a bed of finely-divided, solid inert material in a horizontal rotating retort at a temperature above the end-point of distillation of the bituminous material, and delivering the latter in finely-divided form on to the bed.  Part of the coke produced in the process, after crushing, is returned to the retort.  The retort may be heated internally or externally.  Finely-divided pitch-coke is introduced through screw conveyer 44 into retort 11 which rotates counter-clockwise (looking towards the left) on rollers 17 in stationary furnace 3, heated by burners 9.  When the temperature of the retort shell is about 1100 DEG  F., liquid pitch is supplied through pipe 28, Fig. 4, to box 29 where it rises above level L and flows through pipes 33 into the retort.  The pipes 33 pass through steam-jacket 31 and turn through a right angle before they enter the retort wherein they extend to different points longitudinally, so that the pitch is delivered evenly along the retort.  The pitch comes in contact with the hot coke bed and is distilled giving gaseous products, which are removed through pipe 39, and coke.  If the operation is batchwise, the rotation of the retort is reversed when the quantity of material therein has increased to the desired amount, and lifters 55 discharge part of the contents into shoot 46.  When the apparatus is operated continuously, the product is continuously discharged into shoot 46 by lifter 56.  In either case, a portion of the discharged coke is delivered through upper branch-line 48 into an elevator which takes it to a crusher from whence it is returned to the retort. Pitch oil and creosote oil may be recovered by condensing the gaseous products.
Patent GB-1018695-A (GB)
Title: Mobile crane
IPC: B66C23/36
Filed: 1964-07-14
Abstract: 1,018,695. Mobile jib cranes. DE CAIR M.A. July 14, 1964 [July 22, 1963], No. 29028/64. Heading B8B.  A mobile crane comprises a mast 13, Fig. 1, and a/jib 14 both pivotally mounted on a cab 11 for angular movement in the vertical plane by topping lifts 17, 19 respectively. A counterweight 23 may be provided. The jib 14 may be pivoted to the mast 13, Fig. 3, at 28. The lower pulley block 36 of the topping lift 17 is supported on collapsible gantry arms 32, 35 which are held in the position shown by cables 34. Fig. 2 shows the mast 13 supported in a vertical position by guys 74 and a spider 72. Either the mast or the jib may be used on its own as an ordinary jib crane (see Figs. 6, 7, not shown). A mast stop is provided, Fig. 3, comprising arms 42, 44 which are pivoted to each other at 45 and to the jib and mast at 43, 46 respectively. When either the jib or mast or both approach a critical inclination a wheel 47 abuts an inclined member 48 to prevent further angular movement. The mast is preferably longer than the jib.
Patent GB-416616-A (GB)
Title: Improvements in electric discharge tubes
IPC: C03C4/18
Filed: 1933-10-20
Abstract: 416,616. Discharge apparatus. FISCHER, M., FISCHER, M., and FISCHER, H., (trading as GLASWERK G. FISCHER), 32, Langewiesenerstrasse, Ilmenau, Thuringia, Germany. Oct. 20, 1933, No. 29140. Convention date, May 20. [Class 39 (i).] A glass which becomes strongly luminescent, when subjected to cathode radiation, is made by reducing the iron content below a very small amount which depends on the nature of the metallic compound that is used to give a characteristic colour to the luminescence. Thus a glass containing silver is luminescent if the content of iron, calculated as Fe2O3, does not exceed 0.25 per cent. The output of light from an electric discharge tube made from such a glass is stated to be increased considerably, and the colour of the emitted light can be influenced. The glass is also suitable for the envelopes of Crookes' tubes, R÷ntgen tubes, and cathode-ray tubes.
Patent GB-466349-A (GB)
Title: Improvements in and relating to the speed control of dynamo electric machines
IPC: H02H7/093
Filed: 1935-10-22
Abstract: 466,349. Automatic control systems. BRITISH THOMSON-HOUSTON CO., Ltd., and GIVEN, R. D. Oct. 22, 1935, No. 29164. [Class 38 (iv)] Speed.-A dynamo-electric machine M is coupled to an alternator A connected in a circuit resonant at a predetermined frequency and including a solenoid relay R operative between definite points on the steep part of the resonance current curve corresponding to speeds below the resonance point. The relay actuates mechanism controlling an electrical element of the machine, such as a reversible motor K adjusting a resistance in an auxiliary field circuit or the brush shifting mechanism of an A.C. commutator motor. A centrifugal switch S may short-circuit contacts operated by the relay to cause a speed reducing action at all speeds above the response zone of the relay. Specification 444,269 is referred to.