baber/WOPTO huggingface dataset:
Patent GB-292270-A (GB)
Title: Pianoforte music turnover and music support
IPC: B42D9/08
Filed: 1928-01-11
Abstract: 292,270. Lambert, T. A. Jan. 11, 1928. Leaf holders and turners.-A leaf-turner for pianoforte music consists of a metal strip e with clamps f and an axis g supporting spring-actuated arms h<1> - - h<6> with leaf turning rods k. These are retained in position by lock bars n<1> - - n<6>, released in succession by depressing keys 1-6, and thrown over by spring l on the axis g. The central fold of the music is supported by a wire a, Fig. 1, secured in a stem b on a spring clamp c, which is slipped on to the music rest. Specifications 10693/94 and 12858/96 are referred to.
Patent GB-201505-A (GB)
Title: Improvements in accumulator charging-boards
IPC: H01M10/46
Filed: 1923-04-19
Abstract: 201,505. Wootton, G. A. H. April 19, 1923. Stands.-A charging stand for storage batteries is provided with spring - pressed pivoted arms 2 which engage the battery terminals 3. When any battery is removed the arms 2 are pulled downwards by their springs 10 into engagement with contacts 9 which are connected together by a wire. The contacts 9 are shaped as shown in Fig. 1 to cause a rubbing action with the arms 2 whereby they are kept clean. The batteries rest on a shelf 13 which is slightly sloped to cause the batteries to tilt slightly from the vertical. The batteries can thus be rocked to keep the contacts between their terminals and the arms 2 clean. Trays 14 are suspended beneath the batteries to catch liquid. The springs 10 may be connected directly to the arms 2 or the latter may be formed as bell-crank levers the springs being arranged horizontally and connected to the depending portions of the levers.
Patent GB-1041334-A (GB)
Title: A grease
IPC: C10M/
Filed: 1965-02-26
Abstract: A grease comprises a lubricating base oil containing at least 30% of a diester of azelaic and/or sebacic acid and a monoalkyl substituted primary alcohol, a colloidally dispersed acidic surfaced clay which is coated with an amino-amide formed by the reaction of a predominantly saturated C8-C20 fatty acid, and a polyethylene polyamine, sodium sebacate and a phenyl naphthylamine.  The balance of the base oil may be a silicone, e.g. methyl or methyl/phenyl silicone, a pentaerythritol ester of a saturated fatty acid, a mineral oil, polyphenyl ethers, silicon esters, esters of phosphorous acids, e.g. tricresyl phosphate, diesters, e.g. dioctyl phthalate, and fluorocarbons.  The clay may be a montmorillonite, a bentonite or saponite and may be treated in hydrosol form with a mineral acid, e.g. phosphoric acid to yield the acidic surfaces.  The grease may contain additional anti-oxidants, e.g. phenothiazine and diphenylamine.  Reference has been directed by the Comptroller to Specifications 850,913 and 906,228.
Patent GB-344237-A (GB)
Title: Improvements in ventilators
IPC: F23L17/06
Filed: 1930-03-17
Abstract: 344,237. Ventilators for vehicles, buildings, &c. SANDBERG, H., Selbu, near Trondhjem, Norway. March 17, 1930, No. 8558. Convention date, April 11, 1929. [Classes 25 and 137.] A vehicle ventilator applicable also to the ventilation of buildings, tunnels and the like comprises a ventilating pipe C connected with two or more parallel and substantially horizontal suction tubes A by means of tubes B arranged obliquely to the suction tubes. Where the device is arranged on the roof of a vehicle the inlet to the pipe C is preferably controlled by a valve within the vehicle.
Patent GB-180127-A (GB)
Title: Improvements in hat holding devices for use on seats
IPC: A47C7/64
Filed: 1921-03-19
Abstract: 180,127. Fitzgerald, M. A., Wallace, J. R., Parry, E., and Fish, J. March 19. 1921. Hat-holders. - A stirrup-shaped rail 1, preferably of segmental cross-section, is suspended from the underside of a seat by a plurality of rigid curved straps 2, 3 arranged so that a portion of the hat brim projects between them when the hat rests on the rail 1, the hat being free for withdrawal when the hat brim is raised to the level of the widest distance between the straps 2. In a modification, the straps 2, 3 are attached to a second stirrup-shaped rail 4 which is secured to the seat. The holder is preferably constructed of aluminium. Reference has been directed by the Comptroller to Specification 12441/06.
Patent GB-580694-A (GB)
Title: Improvements in or relating to ignition systems for internal combustion engines
IPC: F02P1/08
Filed: 1944-05-05
Abstract: 580,694. Ignition systems. BENDIX AVIATION CORPORATION. May 5, 1944, No. 8585. Convention date, May 12, 1943. [Class 7 (iv)] In an ignition system for an internal combustion engine a magneto 5 provides sparks for normal running and a booster system is provided for starting, the booster comprising a trembler induction coil 31 supplied with current from a battery 33 and arranged so that the inductive surge following breaking of the coil circuit is applied to. the primary winding of a transformer, the secondary of whch is in series with one of the spark gaps. In the application to a 9-cylinder engine the coil 9 of the magneto is associated with the usual contact breaker 11 operated by a cam 12 driven from the engine. The contact breaker 11 is connected to the ring 14 of the distributor, the ring being connected through the rotary arm 18 to segments 16, each segment is connected through a lead 21 to the primary 22 of the spark coil and the secondary coils 24 are each connected to a spark plug 25. A switch 26 may be provided to. earth the magneto primary to stop the engine. Each primary circuit 21 is provided with a resistance to dissipate residual energy after sparking has occurred preferably a resistance of about 16 ohms may be included in each primary winding 22. The booster coil 30 is controlled by a starter operated switch 34 and has contacts 35 normally closed by a spring 38. A fuse 39 may protect the coil 31. If the timing of the booster sparks can be the same as the magneto the coil 31 may be directly connected to the distributor ring 14, the contact breaker 11 then serving to earth the coil output except when the points are open. Preferably separate retarding means are provided for the booster sparks by the inclusion of a second circuit breaker 40 controlled by the cam 12, or by another cam. A resistance 41 is provided to limit the flow through the magneto coil 9 and may have a value of about 3 ohms in conjunction with a coiling inductance of 5 milli-henries. In operation switch 34 is closed and the trembler coil 31 operated. During this operation contacts 11 are periodically opened and shortly afterwards the contacts 40 close at the required sparking time. This causes a surge from the coil 31 to flow through the distributor to spark coils 22 to cause sparking at the plugs. When the engine starts switch 34 may be opened automatically or otherwise. In a modification, Fig. 2, the main circuit breaker is employed for timing the booster impulses and a switch 44 is opened after starting to prevent the magneto from being earthed through the booster coil. In another modification the switch 44 is replaced by a solenoid operated relay swich.
Patent GB-844497-A (GB)
Title: Cooking utensil
IPC: A47J36/04
Filed: 1958-03-18
Abstract: 844,497. Stands. SOC. INDUSTRIELLE DE FERBLANTERIE. March 18, 1958 [March 18, 1957], No. 8665/58. Class 128 [Also in Group XVII] A dish B of heat-resistant glass, shown inverted in Fig. 8, has a frame of wire or rod which serves as a stand having feet 17 and carrying handles 19. The member B is also used as the lid of a casserole in which case the part 16 of the frame serves as a carrying handle and the members 19 as feet. The frame is held on the dish or cover by its own resilience. French Specification 909,352 is referred to.
Patent GB-422521-A (GB)
Title: Improvements in or relating to the production of active carbon
IPC: C01B31/12
Filed: 1934-03-20
Abstract: Active C is prepared from the shells of the cocoa bean by treatment, preferably by impregnation, with a solution of an alkali or alkaline earth sulphide, the material being then heated to 500 DEG  C. in the absence of air and afterwards washed with water and dried. Preferably, the impregnating solution consists of potassium sulph-hydrate prepared from spent gas-purification iron oxide by the action thereon of potassium sulphate and slaked lime, the insoluble calcium sulphate and sulphite formed being filtered off and the sulph-hydrate being concentrated up to 40 per cent. The sulphhydrate solution is used in such amount that one part by weight of the salt impregnates 2 to 4 parts of shell.  The impregnated material may be compressed before heating into briquettes, tablets, &c.
Patent GB-570663-A (GB)
Title: Improvements relating to self-loading firearms
IPC: F41A5/18
Filed: 1943-06-01
Abstract: 570,663. Automatic rifles. WESTERN CARTRIDGE CO. June 1, 1943, No. 8787. Convention date, Sept. 26, 1942. [Class 119] The stroke of the gas-piston 34 is limited by a fixed rod 39, which enters freely a bore 37 in the piston. Upon discharge, the piston makes sharp contact with the front face of a crossmember of an action-slide 25, a rear perspective view of which is shown in Fig. 14, and causes it to coast rearwards. The rod 39 passes through a hole 60 in the part 58 and guides the action-slide during its reciprocating movements. The slide has a rearwardly-extending arm 54 having a cam recess 56 formed in the end thereof, which engages a cam-stud 57 on the breech-bolt 27 and effects the unlocking and withdrawal of the bolt, as in a Garand " rifle. The rear end of the guide-rod 39 is fixed in recesses in the underside of the receiver and the top of the trigger-plate 24, so that the rod can be removed by detaching the triggerplate from the receiver.
Patent GB-414170-A (GB)
Title: Improvements in and relating to electric commutator motors
IPC: H02P25/28
Filed: 1933-03-23
Abstract: 414,170. Alternating-current commutator machines. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Nagashev, B. V. ; 63, Sacremento Street, Cambridge, Massachusetts, U.S.A.) March 23, 1933, No. 8796. Convention date, March 25, 1932. [Class 35.] In a motor having a second field winding connected across an alternating-current supply and in transformer relation with the series winding, means are provided for varying the transformer ratio and /or the phase relationship of the fluxes produced by the two field windings. In the form shown in Fig. 2, the speed of the motor is varied by varying the continuouscurrent input to the winding 21 of a reactor 19, the coils 20 of which are in series with the series winding 13 of the motor. In an alternative form, the armature and series winding are connected in a closed circuit containing the armature of a synchronous motor, the excitation of which is varied to vary the speed and direction of rotation of the main motor. In the form shown in Fig. 3, the motor is used to adjust the electrodes 22, 23 in the circuit Eac which energizes the winding 13 to a higher potential than that induced by winding 14 to cause the motor to bring the electrodes into contact. The motor reverses when the electrodes engage and then separates them by an amount depending on the adjustment of the field windings.
Patent GB-896215-A (GB)
Title: Improvements relating to electric lamp fittings
Inventor: FORTH JAMES WILLIAM
IPC: F21V21/02
Filed: 1960-03-12
Abstract: 896,215. Electric light fittings. VERITYS (MAXULME) Ltd. March 6, 1961 [March 12, 1960], No. 8799/60. Class 75(2) In a fitting for electric lamps, more particularly pendant lamps, of the type incorporating a spider forming part of a central bush to which a supporting tube is attached and which bush supports a cap covering the wiring terminals of the lamp, the cap has a bayonet-type connection with the bush. The body b of the lamp is secured by screws b<SP>1</SP> to the arms a<SP>1</SP> extending from a central bush a. The arms a<SP>1</SP> also carry a terminal fitting c to which the electric leads are attached. The bush a has diametrically opposite vertical slots a 3  from which extend lateral slots a<SP>4</SP> the ends a<SP>5</SP> of which are inclined slightly upwards. The spider formed by the arms a<SP>1</SP> is covered by a cap e having a neck e<SP>1</SP> sliding on the bush a and formed with inward protrusions e<SP>2</SP> engaging in the slots.
Patent GB-871842-A (GB)
Title: Improvements in or relating to gas turbine engines
Inventor: LEFEBVRE ARTHUR HENRY
IPC: F02K1/38
Filed: 1959-03-13
Abstract: 871,842. Generating combustion products under pressure. ROLLS-ROYCE Ltd. March 4, 1960 [March 13, 1959], No. 8814/59. Class 51 (1). [Also in Group XXVI] A by-pass gas turbine jet-propulsion engine in which duct means are provided for mixing the by-pass air with the turbine exhaust gases in a mixing area disposed in the jet pipe, the upstream end of the duct means communicating with the by-pass passage, and the downstream end extending into the path of the turbine exhaust gases, has reheat combustion equipment comprising fuel injection means and combustion stabilizing means mounted in the jet pipe in the path of the turbine exhaust gases upstream of the mixing area. An inner casing 10<SP>1</SP> in which are arranged in flow series low and high-pressure compressors, combustion equipment and a turbine 11, forms with the casing 10 a by-pass passage 16 in which air from the low-pressure compressor by-passes the high-pressure compressor, combustion equipment and turbine before passing through a plurality of hollow struts 17 into the turbine exhaust path 14, 15. The turbine exhaust annulus 14 merges into the circular gas path 15. The axial cross-section of the struts 17 increase in the downstream direction and the downstream end of each strut has three radially pinched-in portions 18 which form four radially spaced nozzle portions 19. Three concentric, annular, V-section combustion stabilization gutters 20, 21, 22 are carried by the portions 18 and a fourth gutter 23 is carried inwardly of the hollow struts 17. Fuel is supplied from the manifold 24 located in the by-pass passage 16 to stub pipes 25, 32. The stub pipes 25 are connected to fuel injection nozzles 29 and cross-pipes 30, 31 carrying further fuel injection nozzles. Specification 852,829 is referred to.
Patent GB-453882-A (GB)
Title: Improvements in and relating to braking systems for electric motors
IPC: H02P3/08
Filed: 1935-03-21
Abstract: 453,882. Control of D.C. motors; retarding controllers. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and LIDDIARD, H. W. C., Bulawayo Lodge, Dunchurch Road, and PETCH, T. H., 45, Portland Road, both in Rugby. March 21, 1935, No. 8890. [Class 38 (iii)] In a Ward-Leonard control system for a winding, hoisting, haulage or like motor, the generator field regulating lever A is subjected to restraint when emergency braking is taking place, but is free of such restraint under normal conditions. The lever A is keyed to a shaft B carrying friction discs C, C<1>, a toothed wheel D being freely mounted on the shaft B between the discs C, C<1>. During normal operation a latch E is held clear of the wheel D by means of an electromagnet K, but when emergency braking is introduced by the tripping of safety devices, the electromagnet K is de-energized and the latch E engages the teeth of the wheel D. The control lever A is then restrained by the fricton between the discs C, C<1> and the wheel D to an extent which may be adjusted by nuts M. These nuts are on bolts which pass through arc-shaped slots in the wheel D and hold the plates C, C<1> in contact with the wheel, spring washers or springs L being provided behind the nuts. Alternative means such as a dashpot may be used for applying the restraint.
Patent GB-375388-A (GB)
Title: Improvements in and relating to the production of porous or permeable coatings for use in galvanic cells
IPC: H01M6/22
Filed: 1931-03-24
Abstract: The electrodes or the depolarizer of a galvanic cell are coated with a composition containing cellulose and cellulose acetate, the cellulose rendering the coating permeable to electrolyte.  In the examples, (1) acetyl cellulose is dissolved in a mixture of chloroform and alcohol, and finely divided pure cellulose is stirred therein.  The electrode or depolarizer is then dipped in the liquid, and on solidification a permeable coating is obtained; (2) cellulose is partially acetylized in known manner, and the product, containing a proportion of pure cellulose, is treated with a mixture of chloroform or alcohol and ethyl acetate. The solution, which contains unconverted cellulose, is used for coating.
Patent GB-472820-A (GB)
Title: Improvements in the cooling of engines particularly for aircraft
IPC: F01P7/02
Filed: 1936-03-26
Abstract: 472,820. Cooling aero-engines. ELLOR, J. E., and PARAVICINI, T. P. DE. March 26, 1936, No. 9064. [Class 4] The cooling means of an aero-engine are placed in a duct which has one or more entrances and one or more exits open to the air through which the vehicle is travelling in positions in which such air is at higher pressure than the' static pressure of the surrounding air either by reason of the passage of the aircraft or by reason of such passage in combination with the airscrew slipstream, and the positions being such that the external pressures at entrance and exit of the duct are substantially the same whatever the speed of the vehicle, the air being caused to flow through the duct by mechanical means and discharged therefrom at low velocity. In one form, Figs. 1 and 2, an engine nacelle A is mounted on a wing A<2> in which is formed a duct B<1> having an intake at B and an exit of larger area at E, both formed in the leading edge. A radiator D<1> is arranged in the duct and air is circulated therethrough by a fan D driven by the engine or by separate power means. The engine exhaust manifold may discharge into the duct or finned exhaust pipes be led therethrough, and the engine may aspirate air for combustion from the duct. In a modification, Fig. 3, openings in the leading edge of a wing F<2> open into ducts G, G<1> leading into the interior of cowling J<1>. The air is circulated by fans G<2>, G<3> and escapes at an annular opening J after passing over crankcase H, cylinders H<1> and exhaust collector ring H<2>. The area of opening J is greater than the combined areas of openings F, F<1>. Ring H<2> may be finned or the exhaust gases may be discharged directly into the cowling.
Patent GB-682106-A (GB)
Title: Lock nuts
Inventor: FOSTER TREVOR HUGH
IPC: F16B39/38
Filed: 1950-04-13
Abstract: 682,106. Locking nuts. NUTS & BOLTS (DARLASTON), Ltd. March 30, 1951 [April 13, 1950], No. 9092/50. Class 89 (i) Relates to lock-nuts having an internal V- groove spaced about three threads from the bearing face and consists in making this face convex by chamfering at an angle of from 13 to 19 degrees so as to leave a flat bearing face 11 of diameter Ds=1.22 Dt, the root diameter of the thread. The diameter Dg, of the groove is half the sum of Dt and the diameter W across the flats. The groove may be central and each face of the nut may be convex, in this case the nut has about seven threads. Specification 375,430 is referred to.
Patent GB-1140524-A (GB)
Title: Improvements in or relating to photo-hardening
Inventor: POOT ALBERT LUCIEN
IPC: C08G18/60
Filed: 1965-03-03
Abstract: 1,140,524. 1-Methyl-3-diazo-quinolin-4- onium paratoluene sulphonate. GEVAERTAGFA N.V. 21 Dec., 1965 [3 March, 1965], No. 9136/65. Heading C2C. [Also in Divisions C3 and G2] A compound of formula wherein R 3  and R 4  are H, R 5  is CH 3  and X- is p-CH 3 -C 6 H 4 -SO 3 - is prepared by heating 3-diazoquinoline-4-one with the methyl ester of p-toluene sulphonic acid.
Patent GB-218021-A (GB)
Title: Improvements in and relating to tieing machines
IPC: B65B13/26
Filed: 1923-04-03
Abstract: 218,021. Rivollier, J. April 3, 1923. Sausages.-Relates to a machine for tying bags, sacks, or cylindrical articles such as sausages, with cord, twine, wire, &c. The article 66, Fig. 15, to be tied, is placed in the opening of a toothed sector 50, then in the symmetrical position shown in Fig. 1, and the free end of a length of cord is held by a spring clamp 46. A toothed wheel 15, Figs. 1 and 3, is rotated through a third of a revolution by a crank 51, and, through gears 64, rotates the toothed sector through a complete revolution. The cord is drawn through a guide 72 and weights 71, and slides round a groove 60 in a sleeve 59, Figs. 1 and 6, adapted to be moved transversely by a cam 7 acting upon a fork 43. An arm 41 is actuated by a cam 1 to move sideways and upwards and to displace the standing portion of the cord behind the toothed sector as shown in Fig. 15. Knot tightening arms 19, 20 are moved inwards to the position shown in Fig. 3 by the action of springs 35 on lazy-tongs 17, the jaws remaining open. During the second revolution of the sector 50, the sleeve 59 is moved forward in Fig. 3 and to the right in 17<a> by the fork 43 by an amount corresponding to the width of a second groove 61, and the arm 41 is actuated to move the cord in front of the sector again, and an arm 31 engages the second turn of the cord and allows the end 77 of the cord held by the clamp 46 to pass into the turn as shown in Fig. 3. During the third turn, the knot tightening arms grasp the cord at the points 67, 68, Fig. 17, and the damp 46 is disengaged. The sleeve 59 is withdrawn and the arms 31, 41 disengage the cord. A cam 14, Fig. 3, acts upon a roller 37 on the lazy-tongs 17 and causes the arms 19, 20 to fly apart and tighten the hnot. The clamp 46 is caused to engage the cord again during the rotation of the sector by engagement with a projection on the sleeve 59 and the sleeve is pushed forward so that a blade 58, Fig. 6, severs the cord. The cord grasped by the clamp is ready for the following operation. At the end of each complete revolution the crank 51 is locked against further movement by a spring catch. By varying the times of operation of the cams 1 .. 8, Fig. 1, and causing the cords to be crossed at different times, knots other than a clove-hitch may be formed.
Patent GB-802735-A (GB)
Title: Improvements in or relating to voltage regulation
IPC: G05F1/34
Filed: 1955-03-29
Abstract: 802,735. Automatic voltage control systems. LINK AVIATION, Inc. March 29, 1955 [April 2, 1954], No. 9144/55. Class 38 (4). In order to correct for both long term and short term fluctuations a voltage stabilizer consists of the combination of a controlled source and a shunt-valve stabilizer. Controlled source.-In one embodiment, rectifiers 11, 12 are supplied from A.C.,mains through a saturable reactor M, the control winding of which is supplied by a valve 41 in accordance with the amplified difference between the D.C. output voltage and a reference source A. In a second embodiment, Fig. 2 (not shown), the rectifiers are supplied from a motor-alternator set, the field current of the alternator exciter being controlled as above. Shunt stabilizer.-The D.C. line 35, supplied as above, is shunted by one or more valves 28, 29 connected in parallel and controlled via a cathode follower 25 in accordance with the amplified difference between the D.C. output voltage and the reference source A.
Patent GB-287874-A (GB)
Title: Working process for heat turbines
IPC: F01K27/00
Filed: 1928-03-26
Abstract: 287,874. Stauber, G. March 28, 1927, [Convention date]. Axial-flow type; working-fluid supply.-In a turbine having expansion chambers A in rotors b, c with intervening columns oi water, and being driven by the passage of the water from one rotor to the other by way of a stationary guide ring d, the oscillation of the water columns is caused by the admission of steam through jets f to the expansion chamber alternately and the subsequent condensation of the steam by cooling water introduced at jets h. The expansion chambers are maintained by centrifugal action on the rotating mass of water and surplus water passes from the inner surface of the mass through outlets l. The apparatus may be adapted for compound working and the last or an intermediate stage may be in the form of an ordinary turbine. Easily condensible substances other than water may be used and the heat carrier may be different from the oscillating liquid.