baber/WOPTO huggingface dataset:
Patent GB-598350-A (GB)
Title: Improvements in or relating to electric supply systems for x-ray apparatus
IPC: H05G1/46
Filed: 1943-11-05
Abstract: 598,350. Supply systems for X-ray apparatus. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 5, 1943, No. 18420. Convention date, July 4, 1942. [Class 38 (iv)] To indicate or prevent X-ray exposures under conditions which would result in the tube being overloaded, a wattmeter is so connected to the tube supply circuits that the deflection of its pointer is representative of the proposed power input to the tube. The scale of the meter may thus be calibrated to read maximum permissible exposure times-as determined by the tube rating charts. A voltage component dependent upon the setting of the timer may also be applied to the meter which is then in the form of a wattmeter relay for preventing energization of tube if proposed exposure time would result in overload. As shown in Fig. 1, a tube 120 is energized through a rectifier bridge 119 and high-tension transformer 112 from an auto - transformer 103 connected to supply mains 101, the period of energization being controlled by a timer 121 which actuates a contactor 114 in the supply to the primary winding of the high-tension transformer. The output voltage-adjusting switches 107, 108 of the auto-transformer are connected to the '' voltage " coil 133 of a wattmeter 130 through a resistor 136, the '' current " coils 131, 132 of the meter being energized by a transformer 137 connected to the supply 101 and including in its secondary circuit a resistor 138, the value of which is varied with the proposed anode current of the tube. The deflection of the pointer 134 of the meter is thus proportional to the proposed power input to the tube and the meter scale may be graduated to show directly maximum permissible exposure times. Resistor 136 may be variable in order that the meter may carry a number of different scales for varying sizes of target spots. In the modified arrangement of Fig. 4, the " voltage " coil 233 of a wattmetric relay 230 is energized by the difference of the voltages across the tube-voltage adjusting switches 107, 108 and a portion 251 of a potentiometer 250, the arm 252 of which is ganged with the moving element 224 of the timer 221. The potentiometer is supplied from a tapped transformer 260 fed from supply 101 and having its tap-selecting switch 263 ganged to the moving arm of the variable " current " coil resistor 239 which may be associated with a " tube current " selector switch. The output voltage of the potentiometer is thus dependent upon the proposed tube current and exposure time. The graduation of the potentiometer resistance and of the transformer tappings is such that at overload conditions the potentiometer output voltage balances the voltage across adjusting switches 107, 108 so that the pointer of the relay is undeflected. In this condition contacts 237, 238 of the relay are closed, thereby energizing a contactor 244 having normally closed contacts 243 in the primary circuit of the high-tension transformer and thus interrupting the supply to the latter. Transformers 237, 260 may have a common core.
Patent GB-729471-A (GB)
Title: Improvements in pole and like structures for the support of electric transmission lines and other purposes
IPC: E04H12/10
Filed: 1952-07-21
Abstract: 729,471. Latticework posts. PAINTER  BROS., Ltd., and NOCK, J. L. July 9, 1953 [July 21, 1952],No. 18422/52. Class 20 (1). An openwork metal pole comprises a plurality, e.g. two, legs 1, Fig. 1, each embodying two or more tubular main members 2 connected to each other at spaced points by horizontal crossmembers 3, Fig. 2, the legs 1 being connected together by braces 6 extending between the cross-members 3. The braces 6, which are horizontal and of steel tube or other section, have welded thereto at each end a flat steel bar 7, which may be stiffened by having fins, the bar 7 being bolted at 8 to the cross-member 3, Fig. 5. The members 3 are bevelled at 4 to assist in welding at 5 to the members 2. At the top of the pole, Fig. 7, the members 2 of each leg 1 are joined by a bracing member 10 welded to each member 2. A cover 11, which carries an insulator in the case of an electric pylon, surmounts the pole and is clamped in position by a plate 12, holes 13 in the cover 11 and plate 12 receiving the insulator spindle carrying a tightening nut. In a modification, the members 3 and bars 7 each have a part-circular end which grips the members 2, the welding 5 being dispensed with.
Patent GB-946339-A (GB)
Title: Improvements in or relating to measuring apparatus
Inventor: BRAKE DAVID GEORGE
IPC: G01D5/38
Filed: 1961-05-23
Abstract: 946, 339. Gauges with optical reading heads. TECHNICOLOR Ltd. May 21,1962 [May 23, 1961], No. 18632/61. Headings G1J and G1M. A reading head for the scale of a measuring apparatus comprises a stack of laminar plates having thickness equal to (or a simple fraction of) the width ("pitch") of a scale marking 23 - this being of the same width as the space 24 between markings - alternate laminae, as shown in Fig. 2 and corresponding to the markings and spaces respectively, being staggered (Fig. 1) so that light entering a first window at the bottom of each lamina (adjacent the scale) and leaving, after interval reflections, through a second window at the top, will pass to separate photo-detecting or visual observing means 26, 27 associated respectively with light from the markings and light from the spaces. The visual observing means may utilize different colours or different areas of illumination. On movement of the scale the intensity at each detector will vary, passing through one "phase" cycle (360 degrees) for a shift of one division. The faces of the laminae, and the edges (20c, 20d and 21c, 21d) not forming the windows, may be rendered reflecting by deposition of a metal or a substance of high refractive index. Alternatively, the laminae may be shaped to provide internal reflection by critical incidence. As shown in Figs. 1 and 2, the scale is transparent and illuminated from below with an opaque scale, a third window 41 (Fig. 5) may be formed on each lamina for introducing external light to the scale via the first window. Opaque spacers are provided between adjacent laminae. Various other arrangements are described for separating the light from the markings and that from the spaces such as imparting different amounts of refraction (Figs. 6 and 7) to the emergent beams. As shown in Fig. 10 the laminae have flexible light-transmitting extensions 51 for guiding light to the two detectors. Instead of using a stack of laminae arranged transversely to the length of the scale, laminae may be used extending lengthwise over the scale (Fig. 12) and having a plurality of windows. There may be several groups of laminae, those of one group being interleaved with those of other groups, to give a number of signals at different phases. The number of laminae per scale division may be a simple integer or fraction, or may differ slightly to provide vernier action.
Patent GB-689800-A (GB)
Title: Method of, and apparatus for the dyeing of fur skins
IPC: D06B5/00
Filed: 1950-07-26
Abstract: A modification of the method of dyeing fur skins as described in the parent Specification in which the skins are packed alternately with flesh and fur sides together into a container and have fluid forced under pressure along their surfaces comprises forcing the treatment fluid along the surface of the skins in two opposite directions either alternately or simultaneously.  Fig. 1 shows a dyeing container in which the fur skins to be treated are interposed between an inner distributer comprising a perforated pipe 50 surrounded by a perforated shield 51 and an outer distributer comprising a helically-coiled perforated pipe 54.  The treatment fluid is passed from pipe 56 via a valve 57 into either or both of the distributers and thus along the surfaces of the fur skins.  The container is provided with an agitating basket 77, which may be of wire mesh and which is rotated by the electric motor 81.  The inner distributer may comprise two coaxial perforated shields fitted around the inner feed pipe and their may be rotated relative to each other so that the size of the resultant holes through them may be made of varying size, Fig. 4 (not shown).  Fig. 2 shows a dyeing plant com <PICT:0689800/IV (c)/1> <PICT:0689800/IV (c)/2> prising a container 11b, as described in connection with Fig. 1 in which the circulation of fluid from reservoirs 20a, 21a into the container and back is controlled by electric pumps 22a, 23a which may be reversible.  The supply pipes from the inner and outer distributers of the container may be connected to the fluid supply via a change-over valve which enables either distributer to be connected to a return pipe to the circulating pump, Fig. 3 (not shown).  The skins may be dried after treatment by passing heated air under pressure through the fluid supply pipes into the container.
Patent GB-1179990-A (GB)
Title: A Welding Apparatus for Fusion Welding.
Inventor: VEHNER LADISLAV
IPC: B23K25/00
Filed: 1968-04-19
Abstract: 1,179,990. Welding by fusion. VYSKUMNY USTAV ZVARACSKY. 19 April, 1968 [20 April, 1967], No. 18664/68. Heading B3R. In fusion welding, e.g. electro-slag, submerged arc or gas-shielded arc welding, the electrode is oscillated transversely by mechanism driven by the electrode wire feed motor. In an electro-slag welding machine comprising guides 3 fixed to a carriage movable along a vertical track, the contact and guide nozzle 29 and the electrode reel and feed mechanism with the feed motor are carried by a gear-box 1 having rollers 2 running in the guides 3. An arm 11 on the gear-box is rotated by the feed motor and carries a coupling 12 slidably engaging in a slot in a bridge 13 adjustably positioned on the guides 3. Rotation of the arm 11 oscillates the gear-box 1 and the welding electrode 22 by an amount determined by the position of the coupling 12 in a slot in the arm 11. The positioning of the coupling 12 in the slot in the arm 11 and of the bridge 13 are adjustable by hand wheels 20, 34 during welding. A plurality of electrodes may be used. A clutch connects the arm 11 to the electrode feed motor.
Patent GB-728026-A (GB)
Title: Improvements relating to branch pipe connections to soil and waste pipes
Inventor: KENNEDY BRIAN
IPC: E03C1/122
Filed: 1953-07-06
Abstract: 728,026. Pipe connections. SHOUKSMITH & SONS, Ltd., J. H. July 6, 1953, No. 18678/53. Class 99 (1). A main soil or waste pipe 1 has an external flat face 4 surrounding an oval aperture, and a cast unit 6, provided with a flat base 7 of the same size as the face 4, is secured, e.g. by bolts 5, to that face. The unit has one or more screw-threaded unions 9 for the attachment of one or more branch pipes, and a washer A may be interposed between the base 7 and the face 4. Two oppositely or angularly disposed units may be fitted to the pipe.
Patent GB-1002420-A (GB)
Title: Improvements in or relating to washing machines
IPC: H01H43/10
Filed: 1962-05-15
Abstract: 1,002,420. Washing machines. SIEMENSELECTROGERATE A.G. May 15, 1962 [May 16, 1961], No. 18709/62. Heading D1A. [Also in Division H2] Control apparatus in an automatic washing machine comprises cam-operated switches 6, 7 to control the direction of rotation of the washing motor, a step-by-step actuating mechanism 10 to actuate a programme carrier 28, means 11 &c to prevent said actuation, and a timing switch gear 19-21, 14-16 to limit the duration of said prevention; the cam 4, 5 of the cam-operated switches, the step-by-step actuating mechanism and the timing switch gear all being driven by a common motor 1 running at a constant speed. A ratchet 8 is constantly driven by the motor 1. When a locking pawl 11 is withdrawn by an electromagnet 12, the ratchet 8 rocks a lever 10 against a compression spring 13, the lever 10 having a pawl 29 to advance the control means 28 which may be a cam plate as shown, or a set of cam discs, or a punched card, and may be interchangeable. A toothed wheel 18 and cams 19-21 are fixed on a shaft supported by the lever 10 and when the lever 10 is stationary, the wheel 18 is engaged and rotated by a pinion 17 on the same shaft as the ratchet 8. Following a period of deenergization, the coil of the magnet 12 may be reenergized, either when particular operating conditions have been reached (e.g. a particular water level or temperature), or after a predetermined time by one of the cams 19-21 closing contacts 14, 15 or 16. The pawl 11 is then withdrawn as soon as a tooth of the ratchet 8 presses the lever 10 to relieve the pressure on the pawl 11 produced by the spring 13. Thus only complete steps are performed by the lever 10. As the lever 10 recommences rocking, the wheel 18 is disengaged from the pinion 17 and is rotated back to its initial position by a spring 23. The pinion 17 will not rotate the wheel 18 indefinitely, even when engaged, since the wheel 18 has a recess 22 which the pinion 17 eventually enters. Wear of the last tooth of the wheel 18 by the pinion 17 in this position due to pressure produced by the spring 23 is avoided by having recesses 24 in the cams 19-21 which the contact springs 14-16 engage thereby arresting the wheel 18 to cancel out the action of the spring 23.
Patent GB-470384-A (GB)
Title: Improvements in and relating to mechanical and electrical couplings
IPC: H01R13/20
Filed: 1936-01-11
Abstract: 470,384. Fastenings. RICHARDS, A. F. W., and BRIGHT, H. Jan. 11, 1936. No. 18728 /37. Divided out of 468,835. [Class 44] [Also in Group XXXVI] A coupling of the type described in Specifications 442,140 and 468,835 is modified so that the blade itself forms the resilient means that causes engagement of the catches on the blade with those on the socket. A resilient blade 87 is twisted about its longitudinal axis and provided with notches 88, 89 at its near end. When inserted in the socket 82, the blade is flattened between the walls 83, 84 of the socket causing the rear end to be turned resiliently to bring the notches 88, 89 into engagement with the walls 85 of the entry 86 of the socket.
Patent GB-627253-A (GB)
Title: Improvements in or relating to sifting apparatus
IPC: B07B1/46
Filed: 1946-06-21
Abstract: 627,253. Plansifters. ATELIERS DE CONSTRUCTIONS L. M. S. SOC. ANON., and PERMENTIER, P. R. DE. June 21, 1946, No. 18753. Convention date, April 16. [Class 117] A plansifter element of the type comprising a rectangular sifting frame 2 having two central longitudinal partitions 13 forming a slot 14 and dividing the frame into two laterally disposed sifting compartments 15, 16 has no sifter material at the corners 6 the corners being limited by lathes or slats 5 and serving to form at one end of the plansifter two passages 6 for the material to a lower stage and at the other end two receiving surfaces 7 for the material from an upper stage in which case the corners are reinforced by solid triangular pieces 7. Each frame is lodged or supported on lathes 12, Fig. 5, in a housing 3 provided in its base with a central longitudinal slot 17 and with triangular apertures at each corner which co-operate with the apertures in the associated frame to provide a passageway for the substances from the sieves. The sifting frames being symmetrical about a vertical axis permit them to be reversed in the housing and their corners adapted as passageways or to receive material according to the part of the unit in which they are located. The housings are reinforced by laths 11 crossing their corners to provide corner conduits registering with the corner passageways or reception surfaces of the frames and each housing carries below the sifter a rail or guide 4 for the displacement of cleaning brushes. The housings are superposed on each other and have lateral conduits 8. 9 disposed so as to co-operate with apertures in collector frames and walls to provide a passageway for the substance from the sieves. These collector or auxiliary frames fit the housings, but are of smaller heights than the housings and are disposed according to requirements below certain of the housings. They are provided with pallettes, passages and partitions for directing the products according to requirements. The sifting frames may also be provided with pallettes 2<SP>1</SP>.
Patent GB-239672-A (GB)
Title: Improvements in and relating to gas purifiers
IPC: C10K1/28
Filed: 1924-08-07
Abstract: 239,672. Brooke, R. M. Aug. 7, 1924. Purifiers.-A valve casing E for circulating gas through a group of purifiers 1 - - 4 comprises two sections W, W<1> separated by a partition P, one section W being connected to the top entrance T of a purifier and the other W<1> to the bottom B, each being provided with a number of valves 5 - - 9 according to the number of purifiers of which one 5 is connected to the gas inlet main M, a second 9 to the gas outlet main 0 while the remainder 6 - - 8 are connected to return mains R for circulating the gas between the purifiers. When the latter are situated in a row one valve casing is associated with each purifier externally to one side thereof or beneath the purifiers when they are raised above the ground; when the purifiers are nested, Fig. 9, all the valves are assembled in one casing divided into parts E, E<1>, E<2>, E3 each having two sections W, W<1> and are situated on each side of the gas mains O, M. The valves have spindles H operated by hand-wheels and close on seats G which form a partition between the upper part of the valve casing and the lower part which is divided by partitions S into compartments X communicating with the mains.
Patent GB-910472-A (GB)
Title: Improvements in or relating to apparatus for transporting elongate objects
IPC: B29C48/355
Filed: 1959-06-02
Abstract: 910,472. Endless conveyers for transporting elongated objects in the direction of their length. SHAW, H. June 1, 1960 [June 2, 1959], No. 18789/59. Class 78 (1). An elongated object, e.g. a tube 28, is conveyed away from an extruding machine by an arrangement comprising three endless members 12, which may be either belts, as shown, or chains provided with pads, each member 12 being carried by pulleys or sprockets 13, 14 which are mounted on shafts 15 each projecting outwardly from a shaft 17, there being a chain 32 interconnecting sprockets 26 on each of the shafts 17 whereby the members 12 can be moved simultaneously towards and away from the tube 28. An arm 33 is carried by one of the shafts 17 and is acted on by a tension spring 37 to bias the members 12 towards the tube 28, a screwed rod 34 and nut 35 being provided to enable adjustment of the spring tension to suit tubes of different diameter. The shafts 15 are secured to the corresponding shaft 17 by splined sleeves 16, one of which is permitted limited slidmg movement along the shaft 17 so that the belt 12 can be tensioned by a spring 27. The shaft 15 associated with the other sleeve carries a bevel gear 20 secured to the pulley or sprocket 13 and meshing with a bevel gear 21 secured to a driving sprocket 23 loosely mounted on the shaft 17, the driving sprockets 23 of the three shafts 17 being interconnected by an endless driving chain (Fig. 2, not shown). Each belt or chain is supported intermediate the pulleys or sprockets 13, 14 by a backing member, e.g. a plate 24, Fig. 1, which is carried from the shaft 17 via a sleeve 25. In the modification of Fig. 4, the member 12 is a belt having teeth 40 on its underside arranged along the centre line and engaging teeth 38 provided in a central groove of the driving pulley 13. In this construction the belt 12 is supported intermediate the pulleys 13, 14 by an endless belt 41 carried on pulleys 42 and in turn supported by a plate 43, the plate 43 and the shafts of the pulleys 42 being carried from the shaft 17 in the manner of the plate 24 shown in Fig. 1.
Patent GB-1025567-A (GB)
Title: Photographic materials:filtering and anti-halation layers
IPC: G03C1/83
Filed: 1963-05-13
Abstract: 1,025,567. Photographic filter and antihalation layers. FERRANIA S.p.A. May 13, 1963 [May 18,1962], No. 18797/63. Heading G2C. Photographic light-sensitive materials comprise an antihalation or filter layer containing a triarylmethane dye of the formula: wherein A is an aryl or substituted aryl group, R 1  is an alkoxy group and R 2  is an aryl or substituted aryl group. The aryl group R 2  may contain a hydroxyl substituent, and the group R 1  may be methoxy. The dyestuffs are described in Specification 961, 466. In the examples, anti-halation layers are prepared by dispersing the dyes in a copolymer of methyl vinyl ether and maleic anhydride or the condensation product of p-dimethylol-cresol and p-hydroxybenzoic acid.
Patent GB-114289-A (GB)
Title: A Combined Strop and Stone for Sharpening Razors and the like.
Inventor: DAVIES DANIEL ROWLAND
IPC: B24D15/08
Filed: 1917-12-19
Abstract: 114,289. Davies, D. B., and Lewis, J. Dec. 19, 1917. Hones; strops. - In a combined strop and hone for sharpening razors &c., a base member a is provided on one side with a strop consisting of a strip c of leather &c., the ends of which are inserted in transverse holes d in the base and fixed by wedges, and on the other side with a hone b, preferably formed of slate.
Patent GB-1048443-A (GB)
Title: Improvements in work scheduling means
IPC: G09D1/00
Filed: 1964-05-07
Abstract: 1,048,443. Work planning devices. G. E. A. WHYTE. May 7, 1964 [May 23, 1963], No. 18993/64. Heading G5C. Blocks 26, representing a plurality of operations, are arranged on parallel guides 20, and blocks representing interdependent operations are interconnected by means 32, 34; 36, 38 (also Fig. 2, not shown). Channel members 20 support blocks 26, of various lengths, on sidewalls 24 and bear time scales 30. Interconnecting means comprise spring metal clips (yokes) 32, 46a, with flanges which engage extended arms 42, 44 on other spring clips 34, 36. A clip may have two arms, and these may engage one end of a block rather than another clip. These means are used to ensure that a block on one guide, representing an operation which can be started only on completion of an operation represented by another block on a parallel guide, cannot be displaced along the time scale beyond the end of the other block. Thus, " critical paths " of operations are determined, and available leeway on non-critical paths indicated (Figs. 3, 4, not shown). Fig. 5 (not shown) illustrates a wall mounted model, in which blocks (68) slide in engagement with flanges (66) (Fig. 6, not shown), blocks 68 having channels (72), which accommodate cards (74) identifying the blocks and also resilient retaining portions (80) of arm type clips (76), (78) and clips (82) engaging with clips (76), (78). Channel members (60) are resilient and, between tracks (62), (64), accommodate time interval markers (88). Interdependent blocks could be connected by pulleys and cords or electrically. Guides could be magnetic rods engaging magnetizable blocks; blocks could have spring clips snapped into guide grooves; or shelves supporting blocks on brackets may be used. Reference has been directed by the Comptroller to Specification 969,157.
Patent GB-130026-A (GB)
Title: Improvements in or relating to Automatic Guns.
Inventor: DAWSON ARTHUR TREVOR
IPC: F41A3/50
Filed: 1917-12-22
Abstract: 130,026. Dawson, Sir A. T., and Buckham, Sir G. T. Dec. 22, 1917. Machine guns.-Consists in increasing the speed of firing of guns of the Maxim type by connecting the return spring to the crankshaft through a device which causes the turning - moment of the spring on the crankshaft to be gradually increased during recoil, instead of being gradually diminished as in known guns of this type. In the form shown in Pig. 8, the crank-shaft B carries, in place of the usual fusee, an arm D connected to the return spring x and occupying the position shown when the breech is closed. Fig. 4 shows an alternative construction in which the fusee B<2> is connected to the return spring by a single link B<4> which, during recoil, first moves relatively to the fusee, but afterwards contacts with a flat surface on the fusee, thereby moving with the fusee to the position shown in Fig. 6. During recoil, a supplementary spring (not shown) is compressed against the rear casing of the gun by a member bridging the rear end of the usual recoil plates.