baber/WOPTO huggingface dataset:
Patent GB-673977-A (GB)
Title: Improvements in and relating to brush mechanism for dynamo-electric machines
IPC: H01R39/41
Filed: 1949-07-01
Abstract: 673,977. Brush-holders for dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). July 1, 1949, No. 17489/49. Class 35. In order to prevent chattering the brush 6 in a box-type brush-holder has its end remote from commutator 5 with an inclined surface 7 on which a movable brush engaging member 10 is placed which is acted upon by a spring 16. Thus the brush 6 is urged longitudinally against the commutator and also is biased sideways in the recess 2, thus maintaining the brush constantly in surface contact with the trailing wall of the recess. Fig. 2 shows how the legs 12 move in longitudinal grooves 3, 4 formed in transverse sides of the recess 2. A roller 15 mounted in a pin 14 engages aside of the groove 3. Instead of a roller 15 a curved part 24, Fig. 3 (not shown), can be used. In a modification, the brush engaging member is a ball.
Patent GB-891138-A (GB)
Title: Improvements in or relating to box-making machines
Inventor: BOOT HERBERT WILLIAM
IPC: B31B3/64
Filed: 1957-06-01
Abstract: 891,138. Making boxes. BRITISH UNITED SHOE MACHINERY CO. Ltd. (United Shoe Machinery Corporation.). May 29, 1958 [June 1, 1957; July 24, 1957], Nos. 17489/57 and 23388/57. Class 18. A machine for folding up and securing the end walls of tray form boxes and lids similar to that disclosed in Specification 762,502 has fluid pressure operated means to move an abutment member into position and fluid pressure means, operated by the abutment member, for moving a presser member towards the abutment member. In one embodiment the fluid if air, in a second embodiment hydraulic fluid is used. The pressure, and the duration of the pressure to which the box end is subjected can be varied. In one embodiment Fig. 1, the end of the box is presented to a guide 28 and passes subsequently to an adhesive supplying device 30, rolls 40 which fold the end wing extension of the box, and a plough 48 which folds up the end wing. The operator moves the box on to a plate 51 where it trips a lever 72 and a solenoid operated valve admits air to a cylinder and moves the abutment member 104 into the box blank. When the member 104 moves, a cam thereon trips a switch and air enters a cylinder 100 and raises the presser member. The presser member supports the plate 51 and is carried by a piston 96 in the cylinder 100. After a predetermined time interval and at a predetermined pressure, a switch closes and the abutment and presser member are returned to their initial positions. In a second embodiment, Figs. 4 and 6, the placing of the box on a plate 216 causes one of two solenoids 330, 332 to be energized and fluid moves a piston 250 downwardly in a cylinder 252. Links 256, 266, 276 move the abutment 230 into the box and a stop 278 on the member 266 engages a member 277. Further movement of the piston 250 compresses a spring 268 in member 256 and an abutment 280 engages a rod 282 and moves a valve stem 290 to the left, Fig. 6. Fluid now flows from valve 292 to a cylinder 240 and raises the plate 216 to press the box end portions together. A micro-switch is tripped as the plate 216 moves upwards and the parts are returned to their initial positions. Specification 537,843 and U.S.A. Specifications 2,338,138 and 2,393,383 also are referred to.
Patent GB-829140-A (GB)
Title: Improvements relating to kerbs for roads
IPC: E01F9/053
Filed: 1957-06-03
Abstract: 829,140. Kerbs. FARRELL, J. C., and HASLAM, T. R. May 20, 1958 [June 3, 1957], No. 17530/57. Class 107 Reflectors 13 directed at an angle to the line of the kerb are set in the two end surfaces 10, 11 of a projection 9 formed in the bevelled surface 2 on the upper road-facing edge of the kerb stone 1, these end surfaces converging towards the centre of the road and also upwardly. The side surface 12 of the projection slopes slightly-away from the road, the reflectors may be directed upwardly, and the roadside face 6 may be splayed as shown in broken lines. The end surfaces may be formed with sockets to receive cementedin metal stirrups on the reflectors.
Patent GB-216005-A (GB)
Title: An improved manufacture of rack for storing gramophone disc records
IPC: A47B81/06
Filed: 1923-07-07
Abstract: 216,005. Chatwin, A., and Kingfisher, Ltd. July 7, 1923. Cabinets for storing gramophone disc records. A series of strips a each having a concave upper surface receiving the edge of a record are spaced by oblong strips b shorter than the shaped strips. Substantially vertical strips c are placed between the front edges of the shaped strips and in line with the oblong strips. Bars d, e, f at the top, front, and rear and end plates g to complete the rack are preferably provided.
Patent GB-725891-A (GB)
Title: Dummy rotor for machines for winding stators of electrical machines
IPC: H02K15/06
Filed: 1953-06-25
Abstract: 725,891. Coil-making apparatus. COMPAGNIE ELECTRO-MECANIQUE. June 25, 1953 [Nov. 13, 1952], No. 17681/53. Class 35. A dummy rotor 1 for a machine for winding stators has radial slots 5 in which windings are placed so as to be transferred into corresponding stator slots 7 by exerting a radial force thereon. The slots 5 are formed with chamfered edges 6 and the width of these slots 5 is smaller than that of the inlet apertures of the stator slots 7. The dummy rotor is centred by means of tags having portions 8a, 8b. In order to wind stators having different axial lengths, each dummy rotor must have an axial length slightly greater than that of the corresponding stator, but the overall length of all the dummy rotor spindles is the same. Specifications 639,069 and 649,432 are referred to.
Patent GB-1357639-A (GB)
Title: Merocyanine dyes
IPC: C09B23/12
Filed: 1971-05-28
Abstract: 1357639 Pyrazolo-pyrazole tetrone EASTMAN KODAK CO 28 May 1971 [29 June 1970] 17748/71 Heading C2C [Also in Divisions C4 and G2] 1H,5H - Pyrazolo[1,2 - α]pyrazole - 1,3- (2H)5,7(6H)tetrone in the form of its mono- or di-Na salt is prepared by reacting a hydrazine salt with a dialkyl malonate in the presence of an Na alkoxide.
Patent GB-904474-A (GB)
Title: Improvements in or relating to organo-phosphorus compounds
Inventor: JUNGERMANN ERIC
IPC: C07F9/50
Filed: 1960-05-19
Abstract: Organophosphorus compounds are obtained by reacting alkenes or substituted alkenes containing 2 to 30 carbon atoms and free from halide radicals, with phosphorus trichloride in the presence of a Friedel-Crafts catalyst, e.g. AlCl3.  A solvent may be used. Preferably 1 to 5 moles each of PCl3 and the catalyst are used per mole of alkene.  The temperature may be from about -15 DEG C. to about 50 DEG C.  The products may be reacted with other substances, specifically water or methanol with the liberation of HCl.  Examples describe the reaction of PCl3 in the presence of AlCl3 with oleic acid, methyl oleate, nonene, 11-tricosene and tetrapropylene, the products being further reacted with methanol and/or water.
Patent GB-114297-A (GB)
Title: Valve Operating Means.
IPC: F22D5/14
Filed: 1917-11-30
Abstract: 114,297. Northern Equipment Co., (Assignees of Veenschoten, V. V.). March 23. 1917, [Convention date] Feed-water, supplying and controlling.-Valveoperating means for thermal. boiler-feed regulators comprises a lever 14 mounted on a rotary spindle 19 which passes into the valve casing 21 through a stuffing-box 22. The spindle 19 carries an arm 18 engaged to the reciprocating-valve 13 by a link 17. The valve is formed with cage-like undercut projections 15 which engage a rounded oval head 16 of the link 17. The lever 14 is adjustably connected to the rotary spindle 19 by means of the serrated faces 23.
Patent GB-680852-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: H02K27/12
Filed: 1950-07-17
Abstract: 680,852. Alternating current commutator machines. BRITISH THOMSON-HOUSTON CO., Ltd. July 17, 1950 [July 27, 1949], No. 17820/50. Class 35. A dynamo-electric machine comprises two axially-disposed stator cores 28, 29 magnetically linked with corresponding core portions of the rotor, the stator core 28 carries an A.C. control winding 32 and a compensating winding 33 which is connected to the rotor commutator 35a via normally stationary brushes 36, and the stator core 29 carries an A.C. power winding 34. Fig. 4 shows the connections for the above arrangement which includes a control device 19. The machine can be used either as an exciter machine and motor in which the speed is altered by varying the control device 19 or as an exciter machine and an adjustable frequency generator, the frequency of which is adjusted by making the control device 19 a variable frequency device. In each of these two alternatives, the exciter part is that part of the machine associated with the stator core 28. Instead of using a unitary machine as an exciter-motor or exciter-generator combination, two separate machines 10 and 11 can be used as in Figs. 1, 2 (not shown). Specification 650,011 is referred to.
Patent GB-710360-A (GB)
Title: Improvements in and relating to windscreen wiper blades
IPC: B60S1/38
Filed: 1951-07-27
Abstract: 710,360. Windscreen cleaners. O'SHEI, W.E. Oct. 27,1952 [July 27, 1951], No. 17841/51 Class 138(1) A windscreen wiper blade comprises a squeegee moulded of rubber-like material having a thin wiping edge, a backing-up portion behind the wiper edge and of increased cross-section, and a web connecting the backing- up portion to a rear portion, which rear portion is embraced by a channel-shaped holder of which the free edges project into grooves on opposites of the squeegee defined by the web portion of the cross-section, wherein the squeegee or at least that portion outside the holder can rock relative to the holder to assume a trailing position on a windscreen and the depth of the web is such that the rear surfaces of the said backing-up portion will respectively lean, when the squeegee is rocked, against zones at or adjacent the free edges of the holder to limit the extent of the rocking. In the embodiment of Fig. 3, a thick web 4 connects the rear surfaces 3 of the backing-up portion 2 to a rectangular rear portion 5 loosely held in the channel holder 6 of which the free edges 7 of the side walls are inclined so as to project into grooves 8. When the blade is in the rocked position shown, the wiper arm pressure is transmitted to the wiping edge through the edge 7 and surface 3 in a vertical plane which is nearer to the wiper edge 1 than if the pressure was only transmitted through the centre of the rear portion 5. In the embodiment of Fig. 5, a thin web 14 connects the backing-up portion 12 to a rectangular rear portion 15 closely embraced by the holder 16 of which free edges of the side walls are turned in to provide flanges 17 entering grooves 18. When the squeegee is rocked the web 14 flexes and one or other of the inclined rear surfaces 13 of the portion 12 abuts the surface of the corresponding flange 17. The ends of the channelled holder may be folded over to close the ends of the holder and retain the squeegee therein. The invention may be applied to wiper blades for curved windscreens in which case the wiper edge 1 or 11 may be curved and also the holder may be curved, in a direction normal to the windscreen. Specification 670,333 is referred to.
Patent GB-824214-A (GB)
Title: Coated fabric
IPC: B32B27/00
Filed: 1957-06-05
Abstract: 824,214. Coated fabrics. BOIVIN, H. June 5, 1957 [June 13, 1956], No. 17945/57. Class 140. A coated fabric is produced by coating a backing of textile yarn with a mixture containing a synthetic resin and from 0.5 to 1% by weight of a blowing agent, at a temperature below the activation temperature of said agent, sprinkling a finely-divided material on the coating and heating the coated backing to activate the blowing agent and cure the resin, and thereafter removing the finely divided material. The coating mixture may include a substantial proportion e.g. 10 to 20% by weight, of the finely divided material which may be water-soluble, e.g. sodium chloride, stabilizers and drying agents. The mixture may contain a thermoplastic material, e.g. polyvinyl chloride, and controlled amounts of plasticizer. The coating may comprise two layers, the mixture forming the first or inner layer having a more viscous consistency than that of the second or inner layer. A stretchable coated fabric is produced by coating a Jersey type knitted fabric with a first coating of a synthetic resin mixed with a blowing agent, e.g. an agent which may produce a gas such as nitrogen, on activation, in the form of a thick paste such that the coating adheres to the top surface of the fabric but will not fill the spaces between the loops of the knitted fabric, stretching the fabric widthwise in the direction of the rows of the knitted loops while tensioning the fabric lengthwise, sprinkling fine common salt on the coating to a depth of 15 to 20 times the thickness of the coating, heating to cause fusion and drying while activating the blowing agent, removing the salt, washing the coated fabric with water and drying while in stretched condition, and applying on the first coating a second coating of a similar synthetic resin mixture having a more fluid consistency and repeating the process of the first coating. The outer face of the coating may be sanded, washed, and treated with a water-repellent substance, e.g. a silicone. The backing may be made of natural or synthetic fibres such as cotton or glass, and the synthetic resin may be rubber, acrylic resins, cellulose acetate, nitrate, or acetate butyrate, chlorinated rubber, ethyl cellulose, polyethylene, silicones, and polyvinyl resins, e.g. polyvinyl acetate, chloride, butyrate, or acetate chloride copolymer.
Patent GB-256763-A (GB)
Title: Improvements in charge compressing means for two stroke cycle engines
IPC: F02B33/12
Filed: 1925-07-14
Abstract: 256,763. Heard, W. H. July 14, 1925. Two - stroke engines.-In an engine which compresses a pump charge in the end of the cylinder remote from the compression space an oscillating valve A of spherical curvature, and worked by the lateral movement of the piston rod G, controls the inlet of the charge through a passage J to the compression space B during the up-stroke of the piston. Towards the end of the down - stroke, the compressed charge is transferred through ports L, M, and exhaust occurs through ports N, P, both sets of ports L and N being formed in a sleeve extension H<1> of the piston.
Patent GB-219711-A (GB)
IPC: H04B1/16
Filed: 1924-07-28
Abstract: 219,711. Asser, E., (Assignee of Noecker, F.). July 28, 1923, [Convention date]. Thermionic amplifiers. - A variable condenser 5 is connected between the anode 2 and filament 4 of a valve 1 so arranged that its adjustment varies the damping of the receiving circuit. The arrangement is also applicable to a number of valves, in which case the damping controlling condenser may be applied to a single valve or to any number of valves in series. Reference has meen directed by the Comptroller to Specifications 137,876, 147,446, and 209,575.
Patent GB-812654-A (GB)
Title: Improvements relating to aircraft-runway constructions
IPC: E01C11/26
Filed: 1957-06-06
Abstract: 812,654. Heating aircraft runways. NALLINGER, F. June 6, 1957 [June 12, 1956], No. 18068/57. Class 107 The surface of an aircraft runway is heated by directing hot gas from a nozzle 10 on to it, or by radiation from an electric radiator 18 pivoted to lie in a trough 21 when out of use.
Patent GB-794308-A (GB)
Title: Ultra-violet transmitting glass
IPC: C03C3/19
Filed: 1956-06-12
Abstract: 794,308. Glass. ZEISS-STIFTUNG, C. [trading as JENAER GLASWERK SCHOTT and GEN.]. June 12, 1956 [June 23, 1955], No. 18124/56. Addition to 728,808. Drawings to Specification. Class 56. The ranges of some of the constituents of the glass of the parent Specification are modified as follows : P 2 O 5  55-72 per cent by weight ; B 2 O 3  1-6; K 2 O or Na 2 O 1-5 ; BaO 5-18; CaO 0-10 ; Al 2 O 3  0-3 ; SiO 2  0-21 ; ZnO 0-10 and MgO 0-10 the ZnO + MgO beihg 0-13 and the BaO + ZnO + MgO being 13-22. The glass like that of the parent has a high transmittance of ultra-violet.
Patent GB-688851-A (GB)
Title: Method and apparatus for making fibrous tubular bodies
IPC: D21J3/00
Filed: 1950-07-20
Abstract: 688,851. Making fibrous tubular filters &c. HAWLEY PRODUCTS CO. July 20, 1950 [July 29,1949], No. 18177/50. Class87(ii). A fibrous tubular body, e.g. a filter element, is formed by depositing a layer of fibrous material on a tubular foraminous former and progressively enclosing the exterior sides of the deposited body of the fibres during the deposition and progressively shaping the exterior surface of the fibrous deposit by reducing the pressure in the former during the deposition of the fibre. The former 5 comprises a vertical tube 6, a hollow bottom member 12 and a hollow top member 13, all three perforated and with their interiors in communication. A conduit 10 leads to a source of reduced pressure whereby suction may be applied through the perforations. Screens 8, 17, 21 prevent fibres from blocking the perforations but allow water to pass. When the former is immersed in a slurry of fibrous material and suction is applied, fibres start to be deposited on the former non-uniformly, i.e. forming a body tapering towards the top. The surface of the fibrous deposit is properly shaped by the elevation of a tubular member 22 which encloses and confines it. The member 22 may be raised by an air cylinder mechanism 32, doubleacting for lowering also. The apparatus is lowered into a slurry tank 27 by a pair of racks and pinions 36, 44 and 37, 45 operated by a crank 47 After the fibrous article has been formed by accretion the apparatus is lifted out of the slurry and the suction may be kept on long enough to remove much of the moisture. The member 13 is then removed from its tapered seating 48 on the tube 6 and the article is drawn off the former.
Patent GB-922102-A (GB)
IPC: B60T15/04
Filed: 1960-05-23
Abstract: 922,102. Fluid-pressure braking systems. FABBRICA ITALIANA MAGNET MARELLI S.p.A. May 23, 1960 [May 23, 1959], No. 18188/60. Class 103 (1). [Also in Group XXXI] A pneumatic distributer valve assembly comprises a control 1 acting on a balancing lever 2<SP>1</SP>, 2<SP>11</SP> controlling two distributers 3, 3<SP>1</SP>, having push-rods 9, 9<SP>1</SP> acted on by lever 2<SP>1</SP>, 2<SP>11</SP> to open valves 4, 4<SP>1</SP> against spring bias, a secondary control 15, 16 acting on the push-rod 9<SP>1</SP> for opening valve 4<SP>1</SP>, and means to cause valve 4<SP>1</SP> to open before valve 4. Opening of valves 4, 4<SP>1</SP> supplies compressed air to tractor and trailer brakes via outlets 5, 5<SP>1</SP> respectively, a spring 14 causing trailer valve 4<SP>1</SP> to open before valve 4. The valve 4<SP>1</SP> can be opened by hand lever 15 and rod 16 normally biased by spring 18 against a cylindrical stop 17. Plates 11, 11<SP>1</SP> on rods 9, 91 carry cylinders 12, 12<SP>1</SP> which are guided by fixed spheres 13, 13<SP>1</SP>. On opening of valve 4<SP>1</SP>, the piston 6<SP>1</SP> operates a switch 20 controlling the vehicle stop lights; and a switch 19 operated through spring 25 and cup 27 on rod 1 is closed to operate an exhaust brake on the tractor before the main brakes are applied. When cup 27 is moved against spring 26 as well as a spring 24 the valves 4, 4<SP>1</SP> are opened and the operator is then aware of such opening; the cup eventually engages a stop 28 to limit the maximum braking pressure. A rod 30 can be engaged with plate 32 to limit movement of rod 1 and hence the maximum braking pressure when the vehicle is not loaded.
Patent GB-477531-A (GB)
Title: Improvements relating to alternating current rectifiers of the dry surface contact type
IPC: H01L25/07
Filed: 1936-07-01
Abstract: 477,531. Static contact rectifiers. STEVENS, S. A., THOMPSON, L. E., and WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. July 1, 1936, No. 18243. [Class 37] In a dry contact rectifier comprising a number of banks A ... C of rectifier elements 14 arranged side by side in a duct or passage through which cooling fluid passes, the banks are separated from each other by partitions 10 which divide the duct into a number of separate passages each containing a bank of rectifier elements. The separate passages may be further sub-divided by the rectifier elements themselves into secondary passages, so that the main cooling fluid duct is of cellular structure. A fan 15 may be disposed above the rectifier assembly and may be connected to the duct by a smooth stream-lined connecting passage (not shown). A filter device 16 of wire gauze may be placed below the rectifier elements to intercept particles of dust or the like entrained in the stream of air entering the duct under the action of the fan.
Patent GB-110448-A (GB)
Title: Improvements in the Manufacture of Toluol.
Inventor: THUMAN FREDERIC
IPC: C10G9/06
Filed: 1916-12-20
Abstract: 110,448. Thuman, F., (Gartley, W. H.). Dec. 20, 1916. Drawings to Specification. Hydrocarbons, cracking. - Naphtha obtained from gas tar, " street drip," &c. is distilled under a pressure exceeding 35 lb. per sq. in. for the production of toluol. The evolved vapours pass through a dephlegmator fitted with a reflux condenser in order to separate the heavier constituents and return them to the still. The toluol vapours escape from the dephlegmator to a condenser where they are liquefied. The temperature rises during the operation from 260-460‹ F. The residue in the still is distilled under atmospheric pressure, and a distillate resembling naphtha is obtained. This distillate, either alone or in admixture with naphtha, is submitted to pressure distillation to produce further quantities of toluol.
Patent GB-953127-A (GB)
Title: Improvements in optical light valves
IPC: G03B21/00
Filed: 1961-05-19
Abstract: 953,127. Television. GENERAL ELECTRIC CO. May 19, 1961 [May 31, 1960], No. 18273/61. Heading H4F. A colour image display system comprises a source of light 1<SP>1</SP>, a mask 3<SP>1</SP>, a deformable medium 4<SP>1</SP>, an opaque mask 6<SP>1</SP> bordered by colour filters 9, 10, and a screen 81. Mask 3<SP>1</SP> may be an apertured plate or a bar and slit arrangement, and mask 6<SP>1</SP> may be a second bar and slit arrangement. When the medium 4<SP>1</SP> is flat, all light from source 1<SP>1</SP> falls on mask 6<SP>1</SP> and is absorbed. However, if the medium is deformed, e.g. under the action of an electron gun 25<SP>1</SP>, the light is deflected to fall on the colour filters 9 or 10. The resultant coloured light is imaged on to the screen 8<SP>1</SP>.
Patent GB-120805-A (GB)
Title: Improvements in or connected with Cutter Disc Machines for use in Mining Coal and other Minerals.
IPC: E21C31/00
Filed: 1917-12-12
Abstract: 120,805. Mavor & Coulson, and Moore, M. S. Dec. 12, 1917. Coal-cutting machines.-In a cutter-dish machine for mining coal, &c., in which the motor and speed-reducing gear are placed at opposite ends of the body and the cutter disk is placed at the front of the machine, the speed-reducing gear comprises a train of wheels 1 - - 7 arranged on first and second shafts G, H arranged parallel to, and in approximately the same horizontal plane as, the shaft E which drives the cutter disk, the shaft E being nearest to the motor end of the body, whereby the cutter disk is placed at or about the centre of the body. A haulage drum may be driven through gearwheels 9, 10 and a countershaft L. To adapt the gearing for use with motors having shafts D at two different heights, the bearings M of the first and second shafts may be of eccentric or rectangular form, and may be reversed to raise or lower these shafts. Specification 5617/09 is referred to.