baber/WOPTO huggingface dataset:
Patent GB-758675-A (GB)
Title: Jet pipes for jet-propulsion engines
Inventor: KAY ARTHUR SELWYN
IPC: F23R3/34
Filed: 1953-12-11
Abstract: 758,675. Jet propulsion plant. LUCAS (INDUSTRIES), Ltd., J. Dec. 7, 1954 [Dec. 11, 1953], No. 34532/53. Class 110(3) [Also in Group XII] A core for the jet pipe of a jet propulsion engine constructed in part from a plurality of telescopic sections with means for moving the sections axially is arranged so that, when retracted, the inner section which carries a pilot fuel nozzle lies within the surrounding sections. The core consists of a plurality of annular telescopic sections a. At the larger end of each section, other than the smallest, a plate b is secured which is slidable on a pilot fuel supply tube c. The smallest section is provided with a pilot fuel nozzle d and is secured to the tube c. A piston e slidable in a cylinder f is mounted on the other end of the tube c. In normal operation compressed air is supplied to a pipe i and the telescopic sections extended. When it is required to reheat the gases, fuel is supplied to an annular burner surrounding the section a and pilot fuel supplied through a pipe g, orifices h and pipe c to the pilot nozzle d. In this condition, the nozzle d' lies within the surrounding sections of the core. An annular baffle may be provided form ixing the reheat fuel with the main gas stream.
Patent GB-790806-A (GB)
Title: A bearing assembly for an axle and hub, especially for use in motor-vehicles
IPC: B60B27/00
Filed: 1955-12-02
Abstract: 790,806. Securing bearing races on shafts. KNOOP, H. P. VAN DER. Dec. 2, 1955, No. 34549/55. Class 80 (2). [Also in Group XXXIV] A tapered roller bearing 4, 6 is mounted on a vehicle axle 1 by means of an interposed member 2 screwed on the axle. The inner race 4 is clamped between a shoulder 3, at one end of the member 2, and a ring 7 screwed on to the other end of the member 2. The member 2 is locked in position on the axle 1 by a washer 9 and lock-nut 10. The washer 9 has a tongue 11 which engages a slot 12 in the shaft and is thus prevented from rotating relative to the shaft.
Patent GB-1008029-A (GB)
Title: Drill bits
Inventor: PERKINS JOHN MERVYN
IPC: E21B10/44
Filed: 1963-09-02
Abstract: 1,008,029. Drill bits. JOHN M. PERKINS & SMITH Ltd. June 23, 1964 [Sept. 2, 1963], No. 34571/63. Heading B3C. A masonry drill bit comprises a fluted shank 10 reduced at 11, and a tungsten carbide tip 12 brazed into a slot in the shank. The cutting point 19 is eccentric to the bit axis.
Patent GB-1370726-A (GB)
Title: Telephone answering apparatus
IPC: H04M1/65
Filed: 1972-07-25
Abstract: 1370726 Substation apparatus COMPURWERK GmbH 25 July 1972 [10 Dec 1971] 34652/72 Heading H4K A telephone answering apparatus connectible to a separate recording appliance includes an electronic switch arranged to monitor the connection and to prevent an answering device responding if a faulty connection is detected. As shown the answering apparatus 10 is coupled to a telephone line 26, to a power supply 16, and via a three core cable 24 to a recording device 22. A transistor T is arranged to conduct shorting the answering device 14 and preventing a response unless the cable 24 is correctly plugged in completing a loop between lines 18a and 20. When correctly connected up transistor T is blocked and incoming ringing on line 26 causes device 14 to respond, transmitting an answering message to line, inviting a caller to leave a message and switching over contacts 28 and M to couple incoming speech signals and power respectively to the recording device. A counter may be provided to count the number of calls and open a contact in conductor 18a preventing further response when the tape on the recorder becomes full.
Patent GB-1195265-A (GB)
Title: Improvements in Liquid Level Indicators
IPC: G01F23/292
Filed: 1967-07-28
Abstract: 1,195,265. Liquid level indicators. E.B. NICHOLS. July 28, 1967 [Aug. 29, 1966], No.34744/67. Heading G1H. A liquid level indicator comprises a transparent convex head 3, preferably ribbed at 6, having an elongated stem 7 provided at its lower end with a coating or portion of a coloured substance 8 and a cylindrical member 10 provided with a coating 16 or formed of a different coloured substance and the arrangement is such that one or more colours will appear on the head 3 depending on whether or not the substance 8 is immersed in liquid in a container such as a battery. In an alternative arrangement a number of stems 7 of different lengths and colours are provided to indicate different liquid levels.
Patent GB-417703-A (GB)
Title: Improvements in type-bar actuating means for typewriters and like machines
IPC: B41J7/02
Filed: 1933-12-11
Abstract: 417,703. Typewriters. AKT.-GES. VORM. SEIDEL & NEUMANN, 19, Hamburgerstrasse, Dresden, Germany. Dec. 11, 1933, No. 34834. Convention date, Dec. 28, 1932. [Class 100 (iv).] Type - lever actions. - Rolling levers, pivotally connected at the front and rear ends to the keylevers and action-links respectively, have the rear ends arranged in alignment, and are so graded in curvature and length, short keylevers being connected to long rolling levers and vice versa, that the keys have uniform touch and dip, and the force transmitted to, and the movement and acceleration of the rear ends of the rolling lever are uniform. In the action shown in the Figure, key-levers 56 are connected by means of rolling levers 64, links 72, rocking arms 73, and links 75 to the heels 76 of type-levers 52 mounted in a segment 51. The key-levers and rocking arms are pivoted on straight rods 58, 74 in a guidecomb 57. The rolling levers are supported by a plate 65, provided with a guide-comb 70, and are formed with a projection 67, normally resting on a pad 68, and a curved surface 69 which at the inner end 69 is tangential to the projection. A recess may be provided between the projection and curved surface. The keylevers are parallel and are in substantially the same planes as the associated rolling levers and links 72, the links being of uniform length. The rocking arms 73 have uniform movement, and consist of vertical arms of uniform length and inwardly bent arms which are connected by the links 75 to the heels 76, the links being normal to the segment, and the reels and bent arms being of increasing length from the middle to the sides of the system. When the segment 51 is arranged to shift, the rocking arms 73 may be so disposed that the arc of movement is bisected by a line passing through the axis 74 and parallel to the direction of shift. On depression of any key-lever, the associated rolling lever rocks initially about the projection 67, and during further depression, the curved surface 69 rolls on the plate 65 and the typelever is accelerated. The rolling levers may be formed with weights for completing movement of the type-lever by momentum. The pivotal connections of the rolling levers and the links 72 are arranged above the line joining the pivotal connections of the key-levers and rolling levers, and the links and rocking arms 73. The pivot-arrangement permits displacement of the type-levers, for example to permit of cleaning, without disturbing the key-levers, the rolling levers and the links 72 being rocked upwardly, and the links 75 and the rocking arms performing their usual movements. Links 79 for actuating the universal bar 89, and returning-springs 81 may be arranged in the manner described in Specification 411,050. Relay actions.-To permit of power actuation, the rocking arms 73 are connected by springs 94 to rocking arms 91 having lugs 95 for engaging actuating-devices. The pivotarrangement of the rolling levers 64 enables the actuating-devices to be controlled by a small depression of the key-levers.
Patent GB-487776-A (GB)
Title: Improvements relating to motor fuels
IPC: C10L1/02
Filed: 1936-12-18
Abstract: Motor fuel of high octane number consists of light liquid hydrocarbon and a substantial amount of a ketone having one or more branched aliphatic hydrocarbon groups directly united with the CO group.  5-50 Per cent of one or more of the following ketones is suitable: methyl-isopropyl, ethyl-isopropyl, propyl-isopropyl, methyl - isobutyl, methyl - tertiary butyl (pinacoline) methyl-isoamyl, methyltertiary amyl, di-isobutyl, di-tertiary amyl, di - isopropyl, isopropyl - tertiary butyl, ditertiary butyl, branch chain isomers of butyrone (di-propyl ketone), phorone, mesityl oxide, and di-acetone alcohol.  There may be added: other ketones containing 1, 2, or more .CO groups, anti-oxidants or gum inhibitors, dyes, upper cylinder lubricants, gum fluxes, isooctane, di-isobutylene, isopropyl ether, and alcohols.  Specification 487,745 is referred to.
Patent GB-1138063-A (GB)
Title: Process
Inventor: DEE GEOFFREY THOMAS
IPC: C01C1/18
Filed: 1965-08-13
Abstract: 1,138,063. Ammonium nitrate, ammonium phosphate mixture. FISONS FERTILIZERS Ltd. 19 July, 1966 [13 Aug., 1965], No. 34852/65. Heading C1A. A mixture of ammonium phosphate and ammonium nitrate containing less than 5% by weight of water, is produced by feeding into a medium ammonia gas and at least two compounds from a group consisting of nitric acid, phosphoric acid, ammonium nitrate and ammonium phosphate, the selection being made so as to provide at least one acid component, one nitrate-containing component and one phosphate - containing component, the medium comprising previously formed reaction product containing 2% to 10% by weight of water, held at its boiling-point by the heat of reaction and having a pH in the range 2À0 to 2À8. Part of this medium is removed and reacted with a counter-current of ammonia or a mixture of ammonia and an inert gas at a temperature in the range 140‹ C. to 190‹ C., reducing the water content to less than 5% and giving a product having a pH in the range 3À0 to 6À0. The acids fed to the medium are preferably a 40% to 80% by weight nitric acid solution, and a 30% to 60% by weight of phosphorous pentoxide, phosphoric acid solution. These acids may be heated to 20-100‹ C. before being fed to the medium. Concentrated sulphuric acid may also be fed to the medium. The reaction with a counter-current of ammonia may take place in a tower reactor. Granular fertilizers may be obtained from the mixture of ammonium phosphate and nitrate.
Patent GB-650962-A (GB)
Title: Method of purifying alumina
IPC: C01F7/46
Filed: 1947-12-30
Abstract: Precipitated alumina containing calcium compounds is purified by treatment with sulphuric, nitric or acetic acid, preferably at boiling point.  The alumina may be first washed, and boiled to render it less soluble in acid.  The concentration of acid used is less than normal, and generally less than decinormal. Specification 423,594 is referred to.
Patent GB-1438924-A (GB)
Title: Sheet control apparatus
IPC: B41F21/00
Filed: 1974-08-08
Abstract: 1438924 Feeding sheets RICOH KK 8 Aug 1974 [10 Aug 1973] 34933/74 Heading B8R Registering sheets.-Copy sheets 14, Fig. 7, are fed from the top of a pile by a friction roller 15 and forwarded to a stencilling-apparatus 3, and each sheet is first brought up against the nip between rollers 21, 22 while they are stationary, whereupon, in the event of the image on the master 12 being inclined to the longitudinal axis of the master, the axes of the rollers 21, 22 are adjusted to a corresponding inclination, and the rollers are then rotated to advance the sheet. In another form, Fig. 11, the sheet is brought up against a transverse row of stop members 83a, while rollers 81, 82 are out of contact with other, the axis of the shaft 84 which carries the stop members is adjusted to the required inclination, and then the rollers 81, 82 move together to advance the sheet while the stop members are lowered out of the sheet path.
Patent GB-1016677-A (GB)
Title: Improvements in or relating to the heating of synthetic textile filaments
Inventor: DAVIES GERALD THOMAS
IPC: D02J1/22
Filed: 1962-09-14
Abstract: 1,016,677. Crimping filaments. BRITISH NYLON SPINNERS Ltd. Aug. 29, 1963 [Sept. 14, 1962], No. 35110/62. Heading D1F [Also in Division B5] In the processing of synthetic polymeric filaments in which the filaments are passed from forwarding means over heating means having zones of different temperatures to receiving means, the heating means is mounted on a supporting bar which bar is movable in an axial direction across the filament path to allow the filaments to pass over the required temperature zone of the heating means. Preferably the temperature of one zone of the heating means is at least 60‹C. below the temperature of the other zone. In apparatus as shown, yarn 10 is passed over heated snubbing pin 7 in its passage between the feed and draw rolls of a drawing machine. By movement of the free end of lever 4, either manually or by the action of a motor-driven cam, the pin 7 can be moved from the position of Fig. 1, with the yarn passing over the low temperature zone 9 of the pin 7, to that of Fig. 2 (not shown) with the yarn passing over the high temperature zone 8 of the pin 7. A cam operated lever can be arranged so that at shut down the bar and snubber pin are moved so that the yarn is running over the low temperature zone of the pin before the machinery stops. Similarly it can be arranged that at start up the cam will not cause the bar and snubbing pin to move so that the yarn passes over the hot zone of the pin until the machine has attained full operating speed. The apparatus is useful in the false-twist crimping of synthetic filaments.
Patent GB-782281-A (GB)
Title: Thermostatic regulator for fluid fuel burning appliances
Inventor: KUNZLER WILLIAM SMITH
IPC: F23N5/02
Filed: 1954-12-03
Abstract: 782,281. Thermally - actuated valves. ROBERTSHAW - FULTON CONTROLS CO. Dec. 3, 1954 [April 22, 1954], No. 35113/54. Class 135. A thermostatic regulator comprises a valve 42 controlling fuel flow through the valve seat 38, thermal means 28 having an expansible element 32 movable axially relative to the valve seat, a plurality of valve-operating levers 54, 56 pivoted at 60 on the casing 14 and normal to the valve axis, e.g. the bi-metal 76 compensating ambient temperature changes, means operatively connecting the element 32 to the levers and yieldable override means, e.g. the spring 68, between the levers and the valve. The valve spindle 44 is adjustably screwed by the knob 24 into a member 52. When the element 76 swings the levers and closes the valve, further expansion of the thermal element swings the levers and a washer 66 against the spring 68. Lateral members 84 engage the levers and prevent the member 52 from turning during adjustment.
Patent GB-471024-A (GB)
Title: Improved couplings for connecting substantially aligned shafts
IPC: F16D3/68
Filed: 1936-12-23
Abstract: 471,024. Universal joints. RICEFIELD, L. Dec. 23, 1936, No. 35278. Convention date, Dec. 28, 1935. [Class 80 (ii)] Power-transmitting blocks 16, preferably of resilient material, are retained between interengaging axial jaws 10a, 11a on shaftmembers 10, 11, by axial pins 18, passing through the blocks and loosely engaging annular grooves 10d, 11d in both shaft-members. The blocks comprise three layers 16, 16b which may all be of rubber, rubberized duck or leather, but preferably the central layer 16 is of steel or other hard metal. The layers are secured together by rivets 17, which pass through the blocks outside their power-transmitting portions, as do also the retaining pins 18. The latter are retained in the blocks by cotters 19 and are inserted or removed through apertures 10e, 11e in the shaft-members. The contact faces of the blocks may diverge outwardly along curved or straight lines, the jaws being shaped to correspond. The jaws are so dimensioned that, after removal of the blocks, the shaft-members may be separated by relative radial movement, after a part turn in an intermediate position. Two such couplings are shown in series, in which case the couplings are each loosely centred by axial studs on one coupling-half overlying the outer periphery of the jaws of the corresponding coupling-half.
Patent GB-432023-A (GB)
Title: Improvements in or relating to motor-driven air compressors
IPC: F02F1/04
Filed: 1933-12-15
Abstract: 432,023. Cooling air-compressors. GARELLI, A., 13, Via Zenale, Milan, Italy. Dec. 15, 1933, No. 35347. [Class 8 (i)] In a combined internal-combustion engine and air compressor in which a motor cylinder 15 and a compressor cylinder 16 are disposed at an angle to one another upon a crank-case common to them both, the crankshaft 22 is extended outside the crankcase 12 and carries a flywheel 23, the rim of which is provided with impeller blades 24. A cowling 30 surrounds the motor cylinder 15 and is provided with a horizontal wall 32 which overlies the aircompressor cylinder 16 and with a lateral extension 31 which completes the encasement. Air is directed by the impeller against the ribs 29 on the cylinder 15 and also to the air cylinder. A fuel tank 33 is mounted in the wall 32, its vertical wall 34 is initially cast with the ribs of the engine cylinder and the ribs are subsequently cut asunder.
Patent GB-1017461-A (GB)
Title: Improvements relating to agricultural machines for sowing seeds
Inventor: WOOD ERIC
IPC: A01C7/04
Filed: 1962-10-15
Abstract: 1,017,461. Seed sowing machines. JAMES A. CUTHBERTSON Ltd. Jan. 15, 1962 [Oct. 15, 1960], No. 35412/60. Heading A1D. In a seed sowing machine seeds are fed from a hopper 1 to a slot 7 and are propelled along the slot by a helical shaft 5 until they reach the end of the slot where they are discharged into a furrow ploughed by a coulter 20. A rotatable wiper 10 serves to prevent seeds, other than the seeds in the slot 7 from passing out of the machine. The slot 7 is formed in a bush 6 which is provided with a number of slots of different widths and the bush may be rotated to bring any of the slots into position, an abutment 8 holding the bush in position. A press wheel is provided to cover the sown seed.
Patent GB-1030279-A (GB)
Title: Microwave step device
IPC: H01P1/22
Filed: 1964-08-28
Abstract: 1,030,279. Microwave variable attenuators. SINGER CO. Aug. 28, 1964 [Aug. 30, 1963], No. 35421/64. Heading H1W. A microwave step-variable device, e.g. a variable attenuator, comprises a rotatable cylindrical array of microwave elements and a cam mechanism for rotating the cylindrical array to select an element and for effecting axial displacement of circuit connectors for the selected element. As shown, an array of attenuators 15 is located between circular, apertured end-plates 18, 19 which rotate with, and are slidable upon, a shaft 17. Connection to and from a selected attenuator 15a is effected by means of right-angled coaxial sections 33, 34 having plugs 40, 41 at their inner ends for engagement with the attenuator, and sockets 30, 31 at their outer ends for engagement with external lines. Connectors 33, 34 are mounted in plates 35, 36 which are axially slidable upon rods 23, 24 forming part of the frame of the device. A linkage 45, 46, 47 pivoted at 52 to a frame member 48, ensures axial displacement in opposite directions of the plates 35, 36 such that when plate 35 is moved to the left to disengage plug 40, plate 36 is moved to the right to disengage plug 41. Plate 35 moves axially with shaft 17 and axial motion of the shaft is produced by rotation of cam followers 70, which engage a cam 65 fixed to the shaft. The shaft 17 is rotatable and slidable within the tubular shaft 42 of the cam followers. During the first part of its axial motion the cam 65 is held against rotation by a fixed rod 77 which engages one of the notches in a notched ring 78 attached to the cam. The rod disengages the ring after sufficient axial motion has been produced to disengage the plugs 40, 41 from the attenuator 15a. Thereafter, the cam followers rotate the cam which in turn rotates the shaft 17 and the cylindrical array of attenuators. A spring-actuated indexing device ensures axial alignment of a selected attenuator with the plugs 40, 41. Axial return motion of plates 35, 36, shaft 17 and cam 65 with consequent reengagement of plugs 40, 41 is effected by expansion of a spring 60. An indicating device comprises a rotatable drum 81 bearing numerals which successively appear at a window in frame member 83. The drum is rotated by the attenuators 15 which engage notches 86 formed in its edge.
Patent GB-898662-A (GB)
Title: Improvements in or relating to check valves
Inventor: ANDERSON NOEL MERRELL
IPC: F16K15/02
Filed: 1960-10-17
Abstract: 898,662. Valves. CHECK-ALL VALVE CO. Oct. 17, 1960, No. 35550/60. Class 135. The moving closure member 12, Fig. 3, of a check valve is externally tapered at an angle of about 30 degrees and has an internal recess with a groove in which is disposed the flange 40 of a plug 18 so holding in place a pair of inverted U-shaped spring arms 46, Fig. 4, the depending portions 48, Fig. 3, of which are outwardly inclined and terminate in  hooks 50. The closure member 12 is loaded by a spring 14, around the depending portions, and one end of which is disposed in the hooks 50, whilst the other end is located in an internal recess in the seat member 28. The hooks are in contact with the inner wall of the member 28 which serves as a guide therefor and hence for all the movable parts; the spring unit and member 12 are rotatable by any swirling fluid and thus keep the seat clean. The valve unit may be made of nylon.
Patent GB-1311378-A (GB)
Title: Preparation of 3 7-dimethyl-1-octanol
IPC: B01J23/00
Filed: 1971-07-29
Abstract: 1311378 3,7-Dimethyl-1-octanal by oxo process KURARAY CO Ltd 29 July 1971 [8 Aug 1970] 35697/71 Heading C2C 3,7-Dimethyl-1-octanal (i.e. tetrahydrocitral) is prepared by reacting 2,6-dimethyl-2-heptene and/or 2,6-dimethyl-3-heptene with carbon monoxide and hydrogen at 140-190‹ C. in the presence of a hydroformylation catalyst, e.g. cobalt acetate, cobalt carbonate, dicobalt octacarbonyl or rhodium oxide. The reaction pressure is preferably between 10 and 1000 atmospheres with a molar ratio of CO to H 2  of from 0À5 : 1 to 2 : 1 and a concentration of less than 5À0 mole per cent based on the weight of the olefin starting material.
Patent GB-489699-A (GB)
Title: Electro-mechanical device for controlling knitting frames, weaving looms and cord cutting machines
IPC: D04B15/78
Filed: 1936-12-30
Abstract: 489,699. Electro - mechanical controlling devices for knitting - frames. RUINNET, Y. Dec. 30, 1936. No. 35779. Convention date, Dec. 31, 1935. [Class 74 (ii)] [Also in Group IX] A pattern carrying a representation of the design to be reproduced on the fabric is scanned by an electro-mechanical transitory device as described in Specification 357,132, but in the present case the electromagnet of the device directly actuates the control members and these may be used not only tc actuate the needles of a flat bed knitting machine, but also loom jacquard needles or a card cutting machine. When the electromagnet 4 is energized, its armature 5 is drawn down against spring action and a hammer 8 strikes the tail end 16 of the control member situated beneath it and moves into an intermediate position where it can be engaged by cams or guides 14, 15. Certain control memhers are thus moved. into operative position in a row 18. Two electromagnets may be used to control a lever provided with a striking hammer. The control may be effected by energizing one or the other electromagnet, or one electromagnet may alternatively be energized continuously by an attractive force weaker than the other to be replaced by a simple magnet. The control members are mounted on a support or grille which is moved away from and towards the needles, those members which have been moved to the position 18 then operating the needles. The control members are afterwards returned to inoperative position. A housing carrying the electromagnets and cams &c. 14, 15 may move along the support or grill, or alternatively, the electromagnet and cams may be stationary, and the control members be moved past the electromagnet. For supplying current to the electromagnets, relays comprising various types of electron-discharge tubes may be used.