baber/WOPTO huggingface dataset:
Patent GB-1240570-A (GB)
Title: Photosensitive material and process of its manufacture
IPC: G03G5/06
Filed: 1969-07-18
Abstract: 1,240,570. Photo-crosslinking of polymers. CANON K.K. 18 July, 1969 [20 Sept., 1968; 10 Jan., 1969; 17 March, 1969], No. 36396/69. Heading C3P. [Also in Division H1] A polymeric photosensitive material is made by reactively mixing a polymeric organic photoconductor and free-radical former having a free radical produced by radiation. The freeradical former may be a polyhalogen compound or a peroxide whilst the polymeric organic photoconductor is a homo- or copolymer of a vinylcarbazole, including bromoiodo- and nitro substituted vinyl carbazoles.
Patent GB-1215887-A (GB)
Title: Coupling arrangements for transmission lines
Inventor: NIELD PHILIP NEWTON
IPC: H01F19/08
Filed: 1968-07-31
Abstract: 1,215,887. Digital transmission systems; transistor pulse circuits. ELECTRICITY COUNCIL and P. N. NIELD. 18 July, 1969 [31 July, 1968], No. 36604/68. Headings H3T and H4P.  To damp oscillatory currents in a transmission line 11a, 11b following transmission of a pulse from transformer winding 12, an impedance 13a, 13b shunted by a transistor 14a, 14b is in series with each line conductor. The transistors short the impedances when a pulse of a given polarity and exceeding a certain amplitude is emitted by the transformer, all other pulses being damped rapidly by the impedances.
Patent GB-775504-A (GB)
Title: Improvements in or relating to vehicle couplings or hitches
IPC: B62D53/06
Filed: 1954-12-18
Abstract: 775,504. Couplings. SENTINEL (SHREWSBURY), Ltd., and HAMBLIN, L. F. Dec. 12, 1955 [Dec. 18, 1954], No. 36671/54. Class 103(5). The tow bar 18 of a trailer is supported by wheels 15 at its rear end and by a universal joint 19 on the tractor 10 and is provided with tracks for a bogie 22 to which the trailer swan neck 13 is pivotally attached at 21a. Hydraulic jack 24 acts on the bogie 22 to move it forwardly thereby increasing the load transference from the trailer to the tractor. If the tractor wheels still slip when the bogie is moved fully forward then the hydraulic fluid in the jack 24 may be released to allow the tractor to move forwardly on its own after which the jack is pressurized to pull the trailer forward.
Patent GB-435512-A (GB)
Title: Improved method of drawing off the gases of distillation from discontinuously operated chamber ovens
IPC: C10B27/02
Filed: 1934-12-21
Abstract: 435,512. Coke ovens. OTTO & CO., GES., DR. C., 9, Christstrasse, Bochum, Germany. Dec. 21, 1934, Nos. 36697 and 36698. Convention dates, Dec. 22, 1933 and May 22, 1934. [Class 55 (i)] To assist in the withdrawal of distillates from the charge in coke ovens, holes are made in the charge which communicate with the space above the charge, these holes being made by mandrels shortly after the coking seam has reached such a depth from the surface that during further carbonization the shape of the holes is maintained. These holes may be first made before the coking seam has been formed, for example when charging, but the holes must be re-formed by subsequently introducing mandrels after the coking seam has advanced. The holes at least at their upper part should measure 75 mm. or more across. In order to make the holes, bars or mandrels c are rotatably mounted on a carriage d and are each formed with a groove n in which engages a key in the bore of a wheel through which each mandrel is passed. The wheels are rotated by worm wheels on a common shaft f. The mandrels are raised or lowered by cables k running over a shaft l rotated by a chain m, the motor g driving the shaft l. The bars o, Fig. 5, are provided with flange-like pressure surfaces p which compress the charge and enlarge the holes at the top of the charge.
Patent GB-411058-A (GB)
Title: Improvements in adhesives for artificial masses
IPC: C09J189/00
Filed: 1933-12-30
Abstract: Adhesives suitable for combining artificial masses consisting of hardened albuminous substances such as casein comprise 1 part by weight of an albuminous substance such as casein, 1-2 pts. by wt. of water and 0,5-1 pt. by weight of a compound of the formula <FORM:0411058/V/1> wherein X ­ oxygen or sulphur atom and Y and Z ­ hydrogen, an alkyl or aryl radicle.  Suitable compounds include urea, thiourea, and derivatives thereof such as urea containing one or two methyl, ethyl or higher alkyl or aryl groups attached to one amino group. If desired, dyestuffs, fillers, softening agents, wetting agents or agents promoting hardening of the mixture may be added. Suitable compositions comprise: (1) 30 pts. casein: 22,5 pts. urea; 47,5 pts. water and 0,5 pt. paraformaldehyde; (2) 30 pts. casein: 15 pts. thiourea: 55 parts water; (3) 40 pts. casein: 20 pts. thiourea: 40 pts. water and 1,5 pts. butylated naphthalene sulphonic acid.  The artificial masses are joined by applying the adhesive to the surfaces to be joined, if desired after roughening, and then applying pressure, e.g., 50 atmospheres.  Increased temperature, e.g. 50-70 DEG  C. may also be used.
Patent GB-335121-A (GB)
Title: Improvements in typographical line composing and casting machines
IPC: B41B11/00
Filed: 1929-11-30
Abstract: 335,121. Hart, H., (Mergenthaler Linotype Co.). Nov. 30, 1929. Assembling matrices; keyboards ; magazines and escapements. - In machines adapted for assembling multi-character matrices at different levels, and in which a stop is provided for arrest. ing the first elevator in a slightly raised position, a keyboard or equivalent lock is provided, which becomes operative when matrices are assembled at the higher level and the elevator stop is also in action, in order to prevent the improper presentation of a matrix line to the mould. The assembler A, Fig. 4, has fixed matrix-supporting rails A' and an adjustable rail A<2>, operated by a handle A<4> for supporting matrices at the higher level. The first elevator C, Fig. 1, has fixed and retractable rails for supporting the matrices at the two levels, and may be arrested in a raised position in known manner by a pivoted stop or filler-piece E. The keyboard locking-device is in the form of a pivoted bar F, Fig. 4, which is adapted to engage shoulders on the key-actuated slides 9. The bar F is operated through a rod F<5> from a sliding actuating-member J, located in the plane of the adjustable assembling-rail A<2>, which is provided with a bevelled extension A<6>, Fig. 6. When the stop or filler-piece E is moved into operative position, it advances a sliding bar H, having at one end a hinged section H<2> formed with a bevelled end. When the stop E and the assembling-rail A are both in operative position, the bevelled extension A<6> of the assembling- rail co-operates with the bevelled end of the hinged bar H<2> to push back the actuating-member J and lock the keyboard. The locking-device may, alternatively, be arranged to lock the matrices in the magazine, or to lock the escapements or their actuating-reeds. In another arrangement, the actuating-member J may be connected to a shiftframe for moving the escapement-reeds out of operation, or to a clutch &c. for arresting the assembler-belt or the assembler driving-mechanism, or it may serve to operate an alarm.
Patent GB-1187585-A (GB)
Title: New or improved Tool for Driving Fasteners and the like with Impact and/or Rotary Motion
Inventor: TURNBULL JOHN HILTON
IPC: B25B27/00
Filed: 1966-08-17
Abstract: 1,187,585. Impact screwdrivers. G.K.N. SCREWS & FASTENERS Ltd. 5 July, 1967 [17 Aug., 1966], No. 36765/66. Heading B3N. [Also in Division B4] A screw driver comprises a shaft 20 rotatable by a motor 12 through an overload clutch, and a hammer 25 for producing hammer blows to the shaft, driven by a pneumatic piston 22 whose air supply is controlled by a valve 29, on or in the tool body, which valve is actuated to cause operation of the hammer when a predetermined force exerted on the tool body is reached or exceeded. Motor 12 may be electric, or hydraulic but preferably comprises an air motor, and drives a sleeve 19 through bevel gears 16, 17 and a hollow shaft 18 to which the sleeve is splined. Sleeve 19 has a splined extension which co-operates with a toothed ring 21e abutting a thrust bearing 21d on the extension. A second ring 21a is driven by the extension through balls 21b, and this ring has dog teeth which co-operate with dog teeth on a further ring 21 splined to shaft 20. A rod 30 for actuating valve 29 is carried by a nose 32, urged to the left as shown by a spring 34. In operation, when the bit B is applied to the work, the tool parts move to the left relative to the bit and nose 32. Spring 34 is compressed, rod 30 actuates valve 29, which admits pressurized air into a chamber 27. Piston 22 is normally held against a seat 36, by air which is allowed to flow through a passage 38. However, when the pressure in chamber 27 overcomes the pressure in chamber 40, piston 22 is rapidly accelerated, and overcomes spring 51 so that an impact is delivered to shaft 20 and bit B. This enables a fastener, i.e. a self-tapping screw, to pierce a workpiece, whereupon a trigger 15 is actuated to rotate motor 12, and thus cause the screw to be screwed into the workpiece. A number of successive impacts may be produced by applying a sufficient force to the body of the tool to compress spring 34.
Patent GB-368388-A (GB)
Title: Light sensitive cells
IPC: H01G9/20
Filed: 1930-12-06
Abstract: 368,388. Light-sensitive cells. ARCTURUS RADIO TUBE CO., 720, Freling- huysen Avenue, New Jersey, U.S.A. Dec. 6, 1930, No. 36836. Convention date, Dec. 6, 1929. [Classes 40 (iii) and 40 (v).] A light-sensitive cell comprises a casing 10, having a transparent window 11, filled with liquid and accommodating an openwork electrode 18 separated by a light-sensitive layer 14 from an electrode 13. The electrodes are connected to external terminals 20, 17 and are preferably of copper. The light-sensitive material is preferably copper sulphide, selenide, telluride, or oxide, and may be formed by heating the copper electrode 13 to about 1000‹ C. to form cuprous oxide ; it is then immersed in hydrochloric acid to clean and reduce the outer layer of cupric oxide to copper and some of the cuprous oxide, cleaned in nitric acid and the oxide surface etched with hydrofluoric acid or other suitable reagents such as sulphuric acid or ammonium chloride and the back of the electrode is coated with an opaque insulating varnish. The gauze electrode 18 is coated with cupric sulphide, e.g. by heating to about 500‹ C. in an atmosphere of sulphur, so that when the cell is in darkness the potential across the electrodes is reversed, cupric sulphide being electro-negative with respect to cuprous oxide. The liquid in the casing 10 preferably has a high inductive capacity and may be glycerine, ethyl glycol or alcohol and may be diluted with ¢ per cent of an organic acid such as citric, butyric or oxalic acid to provide an electric leak and preserve the etched cuprous oxide surface. When the liquid is conducting, a condenser 33 in series with the cell prevents any direct current flowing through the cell.
Patent GB-782129-A (GB)
Title: Improvements in or relating to closures for drums and like containers
Inventor: COOKE JOHN KEMP MICHAEL
IPC: E05B65/00
Filed: 1954-12-23
Abstract: 782,129. Container closures. TODD BROS. (ST. HELENS & WIDNES), Ltd. Dec. 19, 1955 [Dec. 23, 1954], No. 37123/54. Class 125(3). The dished lid 12 of a sheet metal drum is secured by clips 13 each of which is secured to the drum by a nut and bolt of which the nut 21 is located in a boss 19 pressed in the drum head 10 and is retained therein by an apertured piece of sheet metal 22 welded to the underside of the head 10. A rubber bush 24 is located on the bolt 18 which passes through a hole 20 in the drum head into the nut.
Patent GB-1237409-A (GB)
Title: Method and device for the measurement of hygrometric degrees
IPC: G01N25/68
Filed: 1968-08-05
Abstract: 1,237,409. Measuring dew point. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE. Aug. 5, 1968 [Aug.4, 1967], No.37192/68. Heading G1S. Apparatus for measuring the dew point of a gas at high values of relative humidity comprises a gas pressure regulator 3 controlled by a manometer 4, a condensation hygrometer 2, a meter 7 keeping the rate of flow of gas constant, a valve member 6 producing a pressure drop, and a pump 5 keeping the gas at constant pressure through a line 8. Since the dew point of a gas containing water vapour is directly proportional to the pressure, then if the pressure is reduced the dew point is reduced. In the method of the invention the partial pressure of the water vapour present in the gas is reduced in the hygrometer by the apparatus above from say 500 mm Hg in Fig.2, point a, to say 100 mm Hg, point b, so that the dew point will be reduced from 90‹C. to 52‹C. which is within practical measuring range of current hygrometers.
Patent GB-1365160-A (GB)
Title: Wear resisting magnetic material having high permeability
IPC: C22C38/00
Filed: 1971-08-09
Abstract: 1365160 Magnetic alloy HITACHI Ltd 9 Aug 1971 [10 Aug 1970] 37324/71 Heading C7A A wear resisting magnetic alloy comprises:- the balance, apart from impurities, being Fe, which also must be present. The alloy may be heated to 1200C, hot-rolled or forged, annealed in hydrogen at 800C and cold-rolled with 800C interanneal. Ring shaped samples are then punched from the sheet, annealed at 1100C in dry H 2  and then preferably cooled at a constant cooling rate. USE. Magnetic beads for computers or VTR's.
Patent GB-1000225-A (GB)
Title: Method of covering a space or area by means of mutually coupled geometrical bodies
IPC: E04B7/08
Filed: 1961-10-18
Abstract: 1,000,225. Mosaics. L. S. IZQUIERDO. Oct. 18, 1961 [Oct. 18, 1960], No. 37368/61. Heading B6G. A space or area is covered by mutually coupled geometrical bodies each having two opposite inclined faces by which it is supported by adjacent bodies and two other inclined faces providing support for adjacent bodies. The bodies may be truncated tetrahedrons as shown in Fig. 2, the upper and lower faces being removed to provide upper and lower rectangular faces 27, 28. Four such assembled bodies are shown in plan in Fig. 3. A domed covering can be provided by means of adjacent tetrahedrons having slightly different angles.
Patent GB-1115725-A (GB)
Title: Hydraulic cushion for dies
IPC: B21D24/02
Filed: 1965-09-06
Abstract: 1,115,725. Valves. DI-DRO ENGINEERING CO. 6 Sept., 1965 [4 Sept., 1964], No. 37937/65. Heading F2V. [Also in Division B3] In a crank - operated press the resistance of a hold-down (72), Fig. 2 (not shown), or of a die-section 12 is reduced by a valve 48 as the press-ram 10 decelerates towards the end of its working stroke, the valve 48 being moved by a variable-rate spring 50 to reduce the extent of a flow-opening 40 and the resistance to flow in response to a decrease in the rate of flow from a cylinder 16 associated with the hold-down or die-section. The flow openings 40 may be of triangular form. Hydraulic fluid from a tank 20, pressurized by compressed air, is supplied to the cylinder 16 through a check valve 32. For acting on the hold-down (72), the cylinders (68) are carried by the press-ram (64). The housing for valve 48 may be modified, Fig. 3 (not shown), to provide a separate return-totank (144) for each flow-opening (140) in the valve. A further valve may be provided in each passage (144) so that one or more of the ports (140) may be made effective. Two additional valves (254), Fig. 4 (not shown), may be located between the cylinder 16 and the main control valve (282). At least one of the valves (254) has a central passage (296) through which hydraulic fluid may pass to the valve (282) when the valves are closed. This causes the valve (282) to open followed by valves (254) during descent of the press-ram, hydraulic fluid returning to the tank along passages (266).
Patent GB-1012570-A (GB)
Title: Press unloader
IPC: B21D43/10
Filed: 1962-10-08
Abstract: 1,012,570. Blanks transferring; stamping. SAHLIN ENGINEERING CO. Inc. Oct. 8, 1962 [April 30, 1962], No. 37960/62. Heading B3Q. A work-handling device for loading and unloading a press comprises a work-gripping arm supported by spaced pivots for swinging between raised and lowered positions, cam means guiding one of the pivots along a confined path, links pivotally connected to the arm adjacent to one of the spaced pivots, drive means associated with the links for moving the arm and guide means for controlling the other of the pivots. The unit which may be used for removing sheet metal stampings from a press comprises a frame detachably secured to a portion 22 of a press by a cross-member 18, interengaging flanges 30 and bolts 36, plate members 48, 50 secured to the inside of the frame and having arcuate cam slots 40, 42 therein, and a vertical reciprocable carriage assembly 60. The assembly comprises a block 62 slidably mounted on a shaft 64 mounted within the frame, and a link pin support bracket 66 adjustably attached thereto on which is rotatably mounted a pin 72 on which are pivotally mounted a pair of spaced links 76, 78 on the other ends of which are rotatably mounted rollers 80, 82 which engage the cam slots 40, 42. A pair of spaced support arm end plates 90, 92 on which is mounted a support means 96 to which is attached a gripping device (not shown), one pivotally supported on the stub shafts of the roller retainer assemblies 84, 86. The end plates are also pivotally connected to a pin-and-bush assembly 105 which is rigidly attached to a block 106 slidable on the shaft 64. In operation a single acting fluid-actuated cylinder 130 coupled through piston-rod 132 to an extension 136 on the block 62 raises the carriage assembly and hence causes the rollers 80, 82 to move upwardly along the cam slots and effect the upwards and outwards movement of the support arms 90, 92. A cushioning device for controlling the return movement of the support arms comprises an oil cylinder 140 attached to the frame, the piston-rod 142 of which is connected to a bracket 75 attached to the carriage assembly. A compression spring 116, mounted on a pin 110 extension to the block 62 which extends upwardly through a flange 114 on the block 106, is compressed during the upward stroke of the carriage assembly and the piston-rod 142 is also carried up into the cylinder 140. Upon completion of the stroke the cylinder 130 is exhausted and the carriage assembly, and hence the support arms, retracted by gravity and the force exerted by spring 116, at a controlled rate, by an orifice controlled by-pass within the cylinder 140. Specification 669,646 is referred to.
Patent GB-946833-A (GB)
Title: Improvements in or relating to railway signalling systems
IPC: B61L19/06
Filed: 1960-11-04
Abstract: 946,833. Route setting systems. STANDARD TELEPHONES & CABLES Ltd. Nov. 4, 1960 [Nov. 10, 1959], No. 37964/60. Heading B7N. In a route setting system each points locking relay, e.g. V1 associated with points 1, has a contact V12 in the energizing circuit of a relay H2 associated with a following set of points 2 which, when the locking of points 1 is released (relay V1 energized), energizes relay H2 and allows points 2 to be released by energizing relay V2 via a circuit which includes a group release key AGT, a contact H22 of relay H2 and points key T2. Relay H1 associated with the first set of points 1 is energized via a contact RU which is made when signal A moves to danger on entry of a train into the section.
Patent GB-826587-A (GB)
Title: Improvements in or relating to pocket umbrella sticks
IPC: A45B19/04
Filed: 1957-12-06
Abstract: 826,587. Umbrellas. KORTENBACH, A., KORTENBACH, K., WORRING, F., WORRING, D., and WORRING, H. J., [trading as KORTENBACH & RAUH K.G.]. Dec. 6, 1957 [Jan. 26, 1957], No. 38020/57. Class 134 A pocket umbrella stick has telescoping inner and outer parts 1, 2 with spring- loaded balls 8, 9 projectable through holes 1a, 2a in the inner and outer parts to hold them in an extended position, the parts being retained against complete axial separation by a pin 11 which extends through the inner part, and has a head 12 which abuts against the lower end 13a of an elongated indentation 13 formed in the outer part. The outer part 2 is formed with holes 15, 16 which register with the pin 11 when the parts 1 and 2 are extended, to facilitate removal of the pin and dismantling of the parts.
Patent GB-357444-A (GB)
Title: Improvements relating to electron discharge tubes or thermionic valves
IPC: H01J1/18
Filed: 1930-12-18
Abstract: 357,444. Thermionic valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Dec. 18, 1930, No. 38174. Convention date, July 19. [Class 39 (i).] The cathode 6 of a thermionic valve or other electron discharge tube is supported at points 10 between its ends and is soldered to the supports at these positions. The supports at the points 10 which do not serve to lead in the current may consist of hooks made of molybdenum and the filament may be soldered to the hooks by means of silver oxide mixed with water which is reduced to metallic silver on heating. The hooks may consist of springs to keep the cathode under tension.
Patent GB-1462378-A (GB)
Title: Band-sawing machines
IPC: B23D55/04
Filed: 1973-08-11
Abstract: 1462378 Bandsaws AEW ENG CO Ltd 24 July 1974 [11 Aug 1973] 38296/73 Heading A4C [Also in Division B5] A bandsaw is provided with a pushing device for feeding material to be cut e.g. meat 10, against the saw blade 14 the device comprising a pivotally depending arm 28 connected by a pin and slot connection 30, 32 to a fixed part 18, 20, 24 on the machine frame, the arm 28 being thereby both pivotable through 180 degrees to an upwardly extending position and liftable bodily to allow a further pin 34 to engage in socket means 36, 38 in order to retain the arm in the upwardly extending position.
Patent GB-1334511-A (GB)
Title: Delay line structures for travelling wave tubes
IPC: H01J23/24
Filed: 1972-08-17
Abstract: 1334511 Travelling-wave tubes SIEMENS AG 17 Aug 1972 [15 Sept 1971] 38307/72 Heading H1D In a slow-wave structure for a travelling-wave tube, formed by a sequence of annuli supported along the axis of a waveguide by supports in a common plane and extending alternately from opposite sides of the waveguide, Fig. 1, ranges of relative values of the dimensions d 1 , d 2 , d a , h, L, and S are specified, which provide good coupling impedance, mode separation, and heat dissipation, for an overall size small enough to permit the use of periodic permanent magnet focusing. The supports 3 preferably extend through the guide 1, which latter may be either of circular or square (Fig. 4, not shown) cross section; if square, it may be formed in two halves which are welded together along axially extending seams after the annuli have been mounted therein.