baber/WOPTO huggingface dataset:
Patent GB-711604-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B23/00
Filed: 1951-05-31
Abstract: 711,604. Knitting-machines. WIRTH, H. May 31, 1951, No. 12877/51. Class 74 (2) A flat warp knitting-machine has bearded needles 2 mounted in a needle bar 1 operated by eccentrics 6, 11 such that the needles are caused to move in a figure of eight path. in their movement the needles take yarn from stationary yarn guides 15 and are operated on by pressers 16 which receive their movement from eccentrics mounted on a shaft 23. The sinkers P are given a continuous to and fro motion by an eccentric also mounted on the shaft 22. Specifications 638,421 and 644,292 are referred to.
Patent GB-1248175-A (GB)
Title: Process for the production of perhalocarboxylic acid fluorides or chlorides containing fluorine
Inventor: PAUCKSCH HEINRICH
IPC: C01B17/45
Filed: 1970-03-17
Abstract: 1,248,175. Fluorocarboxylic acid halides. KALI-CHEMIE A.G. 17 March, 1970 [5 April, 1969], No. 12881/70. Heading C2C. Perhalocarboxylic acid fluorides of formula FXYC-COZ, wherein C is fluorine, chlorine or a radical R, Y is fluorine or a radical R, R is -(CFZ) n CF 2 Z, in which n is 0 to 7 and Z is fluorine or chlorine, are prepared by continuously introducing a fluorochloroalkane of formula FXYC-CZC1 2  and sulphur trioxide into a liquid reaction mixture comprising sulphur trioxide with sulphuryl chloride and/or disulphuryl chloride. A mercury sulphate or concentrated sulphuric acid may be used as catalyst. The overall process may be batch-wise, semicontinuous or continuous. In continuous operation, the products are separated by distillation and unreacted fluorochloroalkane and sulphur trioxide is recycled.
Patent GB-179564-A (GB)
IPC: H01J17/00
Filed: 1922-05-08
Abstract: 179,564. Schmierer, J. M., and Deutsche Glimmlampen-Ges. May 9, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Vacuum tubes.-The cathode is covered with a thin layer of insulating material to prevent dispersion without hindering the passage of current, and the lamp contains such a mixture of rare and " ignition " gases that the voltage on the lamp is lower than the voltage at which the insulating layer is pierced. The layer may consist of the oxide, hydrate, or carbonate of the material of the cathode, for instance aluminium or magnesium, produced by exposing the cathode to air, and may be reinforced by chemical treatment or by electroplating, or the layer may be produced by chemical or electrolytic treatment of the surface of the cathode, for instance by means of cyanogen. A coating of potassium silicate may be used. The layer may be applied by immersion, squirting, spraying or by means of a brush. The " ignition " gases, for instance, nitrogen and cxygen, in atmospheric proportions, or chlorine, must be in such quantities that the cathode drop is small, the voltage across the lamp being reduced by means of a rheostat or choking coil. The larger the bulb as compared with the cathode, the smaller must be the quantity of " ignition " gases. A large bulb is used preferably, and the cathode should be of " dense " metal and not over-heated during exhaustion. When a large quantity of " ignition " gases is used, the lamp should be tested at a reduced lead by alternating current, before use.
Patent GB-131514-A (GB)
IPC: F42B10/46
Abstract: 131,514. Humphreys, G. Nov. 4; 1918. Projectiles.-Relates to the attachment of ballistic caps to shell noses, and consists in making the shell nose 2 and the ballistic cap 1 with corresponding conical seats 3, 3a and with studs 4 on one element adapted to fit in grooves 6 in the other to secure the two parts together. Longitudinal or approximately longitudinal approach grooves 5 enable the studs 4 to pass into line with the grooves 6, which are made wavy or helical so that a rotation of the parts relatively to each other causes their conical seats to be tightened and to bind together. When wavy grooves are used, a stop is provided in them to prevent rotation when the shell is discharged. Locating-notches 8, 8<a> are made on the shell and on the ballistic cap to enable these parts to be assembled in correct alinement by the sensation of touch without visual examination.
Patent GB-131690-A (GB)
IPC: H01T13/56
Abstract: 131,690. Jouffret, H. V. J. April 25, 1918, [Convention date]. Sparking-plugs.-In plugs of the type in which an enlargement c<1> on the mica &c. insulation is drawn against a restriction a<2> in the bore of the plug body by a nut on the outer end of the central electrode, a metal ring or the like h is combined with the enlargement c' so as to bear against the shoulder in the plug body.
Patent GB-1276285-A (GB)
Title: Improvements in or relating to semiconductor elements
IPC: H01L29/00
Filed: 1970-03-19
Abstract: 1276285 Semi-conductors TRANSISTOR AG 19 March 1970 [21 March 1969] 13190/70 Heading H1K A thyristor comprises a disc 1 of N conductive silicon (Fig. 3) formed with pits 2, 3 of U-section whose walls consist of P conductive silicon layers 4, 7 of which 4 has a metal coating 6 extending proximate to the upper pit edges 5, and 7 has a superimposed N+ conductive layer 8 overlying the P-layer, with a metal coating 9. Anode A and cathode K connections are taken to coatings 6, 9 respectively and a gate connection G 1  is taken to the P-conductive layer 7 through a contact layer 10 (Fig. 4). A gate connection G 2  is taken to an underlying metallic layer 11, while the separating N-layer 14<SP>1</SP> between the pits is not wider than the pit depth and the free surface of the disc is covered with a protective SiO 2  layer 13. The anode and cathode pits may be comb-shaped with interengaging teeth and doping is effected according to Swiss Specification 442,534.
Patent GB-131997-A (GB)
IPC: G01C3/16
Abstract: 131,997. Cleverly, E. G. Aug. 15, 1918. Range-finders.-A set of graticules a, Fig. 1, is shown interchangeably mounted in a carrier i on a binocular or like for range-finding on the depression principle from balloons &e.
Patent GB-887467-A (GB)
Title: Apparatus for instructing drivers of vehicles
IPC: G09B9/048
Filed: 1958-04-25
Abstract: 887,467. Training drivers. VAN DEN BERG, C. April 25, 1958 [April 27, 1957], No. 13242/58. Class 79(3). In apparatus for instructing drivers of vehicles in which a driver's seat (not shown) with steering wheel, brake and throttle pedals is placed in front of an observation screen, the image projected on the screen is obtained through an optical system such as a television camera, 24, Fig. 1, attached to a model car 26 which runs over a field plate 21 and is controlled by the driver through a swingable arm 23. Connections between the model 26 and the driver's control comprise a flexible shaft for driving the rear wheels and a bowden cable for steering the front wheels. The throttle pedals are coupled to a control resistance regulating an electric motor driver. The model may have buffers adapted to cut off the current to the motor in the event of the model striking an obstacle.
Patent GB-661320-A (GB)
Title: Improvements in or relating to fluorescent screens
IPC: H01J29/20
Filed: 1949-05-18
Abstract: 661,320. Discharge apparatus. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. May 18, 1949 [June 12, 1948], No. 13272/49. Drawings to Specification. Class 39 (i). A method of producing a fluorescent screen, particularly for an image intensifier, comprises' coating particles of a fluorescent material with a metallic electrical conductor, chemically reacting this coating with a substance which produces a chemically inert product and forming the resultant particles into a screen. Particles of silver-activated zinc cadmium sulphide averaging 3Á in diameter may be placed in a rotating drum and a coating of metal, such as chromium, zinc, or aluminium, is sprayed, evaporated or sputtered on to the particles. The coated particles may then be oxidized or treated to form other compounds such as fluorides of the metal. This coating of metallic oxide or other compound protects the phosphor against attack by caesium from the photo-cathode in an image intensifier. When used in an image intensifier the finished screen may be coated with aluminium to prevent light from the screen from reaching the photocathode. Specification 652,451 is referred to.
Patent GB-580041-A (GB)
Title: Improvements in magnetrons
IPC: H01J25/587
Filed: 1942-09-21
Abstract: 580,041. Magnetrons. M.O VALVE CO., Ltd., and HICKIN, E. M. Sept. 21, 1942, No. 13303. [Class 39 (i)] In a magnetron of the kind in which block 1 is pierced with a cavity 2 for the cathode and a number of resonating chambers 3 surround and communicate with the cathode cavity, the resonators are tuned to exactly the same frequency after manufacture by means of bolts engaging threaded holes in the block. In one form, the bolts 5, Fig. 1, enter holes in the ends of the block between the open ends of the resonators ; movement of a bolt affects the frequency of neighbouring resonators. In another form, shown in section in Fig. 2, each bolt 7 enters a resonator from the outside wall ; after adjustment it is fixed by a ring punch and hermetically sealed by solder 8.
Patent GB-568664-A (GB)
Title: Improvements in or relating to processes of preparing solutions of resins or rosins,processes of sizing paper, and the improved composition of matter and sizing composition resulting therefrom
IPC: D21H17/62
Filed: 1942-09-22
Abstract: 568,664. Sizes for paper pulp &c. FOWLER, G. B. Sept. 22, 1942, No. 13336. Convention date, Dec. 27, 1941. [Class 96] Resins are dissolved or dispersed in an aqueous solution of up to 4 per cent of an alkali metal metasilicate or sesquisilicate to produce a size for addition to paper pulp, e.g. in a beater. Resins used may be rosin, copal, gum lac, dammar, congo, sandarac, "Brea" resin, or phenolic resins. The size is precipitated on to the fibres of the pulp, e.g. by sulphuric acid or aluminium sulphate, e.g. to lower the pH value to 4.8. An example specifies 107.5 lbs. of silicate dissolved in 400 gals. of water at 60‹ to 70‹ F., followed by about 380 lbs. of rosin. A mixture of rosin and metasilicate may be stored dry if protected from light and oxidation. Specification 568,352 is referred to.
Patent GB-133522-A (GB)
IPC: G01F3/22
Abstract: 133,522. Smith, E. W. Nov. 20, 1918. Gas meters.-The inlet of an ordinary or coinfreed meter is formed by an extension of the usual valve casing, and the flag is connected to the diaphragm by a double joint, one member of which is fixed to the diaphragm while the other is pivoted to the fixed member and is limited in its range of movement to prevent buckling. As shown in Fig. 1, the gas entering at the part a passes through an extension c of the valve casing tin bridge parts c, c into the valve casing, and follows the usual course to the outlet f. In a coin-freed meter, the passage corresponding to the extension e contains the automatic valve h, Fig. 3, and is raised to accommodate the valve motion. The inlet and outlet may be arranged on the same side of the meter casing. The means for attaching the flag to the diaphragm is shown in Fig. 9, comprising a shallow U-shaped part t to which is pivoted a second U-shaped piece u; the inner ends l of the part u abut against the part t so that the movement of the part u, which carries the flag by means of a sleeve on a bar y passing through its outer end, is limited.
Patent GB-134600-A (GB)
IPC: G03B17/26
Abstract: 134,600. Brower, D. Nov. 2. 1918. Change - boxes. - A change - box has a slot 13, Fig. 6, through which a plate is ejected bv the shutter slide 12 after an exposure, and a second slot 14 for inserting the plates. The slot 14 is closed by a slide 15 which slides in a plane at right-angles to that of the shutter slide 12 and is actuated by two pivoted plates 151, Fig.. 3. These plates are operated by a projecting rod 153. Two changeboxes may be hinged together for use, one box 10 being of slightly greater depth than the other 11, and the plates being transferred from one to the other. The box 10 has an auxiliary protecting-shutter 101. When end-on, a plate 17, Fig. 7, hinged on one box and secured to the other by a catch 171, presses the rods 153 and holds the slides 15 open. A counter 202, Figs. 2 and 6, is actuated each time the shutter 12 is operated by a wedge block 203 and spring-controlled slide 201. Springs 18, Figs. 2 and 4, press the plates towards the focal plane and can be retracted and held inoperative by a sliding plate 181 moved by a projection 182. Rollers 19 mounted on springs 191 are also provided to facilitate the passage of the slides 12 and also prevent the plates from entering the grooves of the slides. The shutter 12 is locked by a spring catch 122 operated by a projection 121.
Patent GB-405942-A (GB)
Title: Improvements in planes having a mechanically-actuated cutter
IPC: B27C1/10
Filed: 1932-05-10
Abstract: 405,942. Power-driven hand planes. ESPUJOLS, P. D', Chemin Jouquet, CaudÚran, Gironde, France. May 10, 1932, No. 13487. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 12, 1932]. [Class 145 (i).] In a plane having a mechanicallyactuated cutter, the cutter is so mounted in the plane stock as to be adjustable therein to regulate the depth of cut. The spindle 4, Fig. 1, carrying the cutter 15, Fig. 6, and driven by a compressed-air motor 34, is mounted in a hub 7 sliding vertically in a housing 19 in the plane stock. A bell-crank lever 21 engages a recess in the hub, and is connected by a knuckle-rod 23 with a hand-lever 24 mounted adjacent the handle 25 of the plane, a spring 29 maintaining the parts in contact. A spring 26 attached to the cheeks of the stock and to the lever 21 normally urges the hub 7 upwards, but pressure on the lever 24 depresses the cutter towards the work by a readily controllable amount. The vertical travel of the hub 7 is limited upwardly by a collar 8 on the hub abutting a shoulder on the housing, and downwardly by the contact of a ring 9 with a cam surface 31 adjustable by a lever 37. The stroke of the hand lever 24 may be limited by a screw abutment 33. The motor is controlled by a trigger 36. In a modification, Fig. 8, the cutter 15 driven by a chain from the motor 34 is carried by a housing 1 pivoted at 39 to a base plate 38 and also joined thereto by links connected to a spring-pressed hand lever 24. In a further modification, Fig. 10, the cutter 15 and motor 34 are mounted on a carriage which is vertically adjustable relative to the stock by a screw 37. In another modification, Fig. 15, the cutter spindle 4 is mounted on a pivoted lever 49 and depressed into contact with the work by a lever 24 bearing on the lever 49 ; the downward travel is limited by a screw adjusted stop 37, and the cutter is overhung outside the plane stock. Fig. 12 shows a cutter consisting of a chain, the links of which are formed as cutters. Several of these chain-cutters may be employed, their runs being stepped. The cutter in any of the modifications may be driven by compressed-air motors, electric motors, flexible shafts or equivalent mechanism.
Patent GB-360398-A (GB)
Title: Improvements in the treatment of cellulose
IPC: C08B1/08
Filed: 1930-05-02
Abstract: Cellulosic materials such as cotton, cotton linters, wood, wood pulp obtained by the soda, sulphite or any other process and cellulosic materials obtained from grasses, straw or nut shells are treated with alkaline solutions such as a caustic soda solution at temperatures below atmospheric and preferably between 0 DEG  C. and 10 DEG  C. The treated material may be etherified by means of an appropriate ester for instance an ethyl, methyl or benzyl ester in the presence of an alkali.  If an ester is to be formed the treated material is preferably treated with formic, acetic or other suitable organic acid.  The invention may also be applied to the mercerization of cotton, the cotton yarn or fabric being treated and then washed under tension.  In an example cotton linters are treated with 9 per cent caustic soda solution at 8 DEG  C. to 9 DEG  C.  Specification 249,173, [Class 2 (ii), Cellulose &c.], is referred to.
Patent GB-722129-A (GB)
Title: Improvements in or relating to board games
IPC: A63F3/00
Filed: 1952-05-28
Abstract: 722,129. Board games. KISSACK, P. W. Aug..27, 1953 [May 28, 1952], No. 13572/52. Class 132 (2). Apparatus for slaying a board game representing biggame hunting comprises a board marked as shown over which tokens representing huntsmen and a token representing a game ranger are moved in accordance with the throw of dice, a pack of hunting cards to be drawn by the players when they land on certain track spaces, a set of cards representing game licences, imitation money, a set of cards on which offences of the players are recorded and a set of trophy cards representing the game "shot" by the players. The tokens are constructed as shown in Fig. 2. The board may fold about the line 2.
Patent GB-1456313-A (GB)
Title: Electrical connections
IPC: H01R39/30
Filed: 1974-03-27
Abstract: 1456313 Supplying current to rotating conductors ELECTRICITY COUNCIL 24 March 1975 [27 March 1974] 13598/74 Heading H2E Electric connection between two coaxial conductors, one being stationary and the other a rotatably composite structure, is by means of a conductive liquid within a space between the conductors formed by a recess in one of the conductors, there being sealing means preventing leakage from the space. The composite rotatable conductor comprises a shaft 10 with taper sleeves 17, 20 fixed thereon while the stationary conductor 11 has an annular recess 12 linked by a passage 14 to a reservoir 13 of conductive liquid 24. Annular members 25 of sealing material support O-rings 28 and are secured to flanges 26, 27 by pegs 29 and springs 30 for rotation with the shaft and sleeves. The conductive liquid is a mixture of Pb, Sn and Bi, and, optionally, other metals, maintained molten by a thermostat 33 and heater 34. In Fig. 2, not shown, the O-rings (36) are mounted in the stationary conductor and the flanges, pegs, springs and annular members are omitted.
Patent GB-254471-A (GB)
Title: Improvements in can openers
IPC: B67B7/70
Filed: 1925-05-25
Abstract: 254,471. Johnson, J. Y., (Enterprise Manufacturing Co.). May 25, 1925. Opening by cutting.-A can opener comprises in its simplest form a metal frame formed' with a handle 2, Fig. 3, and having lugs 6, 7 adapted to rest on the upper edge of the rim of a can and a lug 8 adapted to bear against the side. The blade 9, which has a piercing point 11 and a cutting edge 10, is pivoted to the frame and has an extension 18 formed with a thumb piece, the extension bearing against the lug 6 when the blade is in the cutting position. A traction wheel 3 turnable by a handle 5 rolls against the underside of the bead on the can. Fig. 7 shows a modified construction in which the blade has an extension 9<b> bent over to the back of the frame and adapted, with the blade in the inoperative position, to oear against the spindle 4<b> of the traction wheel. On turning the handle 5 to move the wheel the part 9<b> is swung outwards by the reduced part 5<b> and brought first into piercing and then into cutting position. Fig. 9 shows a further modification for bringing the blade into operative position. A gear wheel 15 on the shaft of the traction wheel meshes with a segmental wheel 17 on the blade pivot; turning of the handle 5 moves the blade into operative position after which the gears cease to be in mesh. After the can has been opened it remains gripped between the traction wheel and the blade until the latter is raised, the device thus serving as a handle for the opened can.
Patent GB-219443-A (GB)
Title: Improvements in making paper insulated electric cables
IPC: H01B13/08
Filed: 1923-05-23
Abstract: 219,443. Beaver, C. J., and Glover & Co., Ltd., W. T. May 23, 1923. Cores, covering by winding. - In a combined lapping and impregnating machine for electric conductors as described in Specification 182,510, [Class 36, Electricity, Conducting &c.], a controlling device prevents the conductor from being pulled out of the desired line of travel whilst being lapped. As shown in Fig. 1, the controlling device is mounted in the trough a containing the impregnating material and the conductor b is constrained to move in a straight line at the lapping point by rollers e<1>, e<11>, e<111> interconnected by gearing or links so as to press equally on the conductors under the influence of the adjustable spring d<3>. The rollers are preferably barrelshaped to avoid the edges tearing the paper wrapping.
Patent GB-289652-A (GB)
Title: Improvements in machines for washing vehicles, such as omnibuses or tramcars
IPC: B60S3/04
Filed: 1927-05-23
Abstract: 289,652. Gates, S. H. L. May 23, 1927. Vehicles, washing.-The vehicle being cleaned is washed by sprays from a pipe 19 which is connected to a source of water supply and is supported by chains 15 passing over chain wheels 13 on a rotatably-mounted shaft 12, the arrangement being such that when the pipe is full of water it descends against the influence of counterweights 16, and when the water supply is turned off, the counterweights restore the pipe to its uppermost position. Means, such as an escapement or, as shown, a dashpot connected by a rod and crank pin to a disc on the shaft 12, may be provided to control the rotation of the shaft.
Patent GB-574557-A (GB)
Title: Improvements relating to the reproductions from disc sound records
IPC: H03G7/00
Filed: 1943-08-24
Abstract: 574,557. Sound recording and reproducing apparatus. BRITISH THOMSONHOUSTON CO., Ltd., and CASTELLAIN, A. P. Aug. 24, 1943, Nos. 13809/43 and 693/44. [Class 40 (ii)] [Also in Groups XXXIX and XL] An auxiliary record carried by a sound record controls the degree of automatic volume expansion to be employed during reproduction. When applied to a disc record, the auxiliary record may be an annular ring of alternate light and dark segments 3, Fig. 3, the number of the segments corresponding to the control required for that particular record. Light from a source 5 such as a neon lamp is directed on to the segments 3 and reflected thereby on to a photo-electric cell 6 producing an A.C. component which is filtered out by a frequencydiscriminator 9. Records are arranged in a relatively small number of groups with a par ticular control frequency for each group so that the frequency-discriminator may be of simple type. The lamp 5 and cell 6 are mounted in casings making equal angles with the record, the assembly being supported on a hinged framework, Figs. 4, 5 (not shown). Alternatively, the auxiliary record may be an annular ring of sinusoidally-varying width. Fig. 1 shows an amplifier circuit with automatic volume expansion obtained by applying signals from a tapping on input resistor R1 to the grid of a control valve V2, the A.C. output of which is rectified at W1 and applied via a resistor R2 to the screen grid of amplifier valve V1. The tapping on resistor R1 and a further tapping on a resistor R3 in the controlgrid circuit of valve V1 are controlled simultaneously by relays operated by discriminator 9, Fig. 3. In a modified circuit, Fig. 2 (not shown), a fixed tapping on resistor R1 is connected to the control grid of a control pentode, to the screen-grid of which are applied rectified potentials representing the degree of volumeexpansion to be employed.