baber/WOPTO huggingface dataset:
Patent GB-881277-A (GB)
Title: Improvements in or relating to counting or switching circuits
IPC: H03K29/00
Filed: 1959-06-18
Abstract: 881,277. Electronic counting-apparatus. BURROUGHS CORPORATION. June 18, 1959 [June 23, 1958], No. 21021/59. Class 106 (1). [Also in Group XL (c)] In a circuit for controlling a magnetron beam switching counting tube (see Group XL (c)), the beam is reset to zero by means of a clear and reset pulse 46 from a blocking oscillator 44. The negative part of the pulse 46 clears the tube but the positive part does not reach the " 0 " spade immediately because of the delay circuit 58, 38<SP>1</SP>. The beam is thus reset to " 0.'' The diode 60 facilitates resetting by preventing the negative part of pulse 46 reaching the " 1 " spade. Alternate switching electrodes 20 are fed from opposite sides of a flip-flop circuit 67 via cathode followers 65, 66. The beam position is indicated on a glow cathode numeral tube 34. Specification 769,024 is referred to.
Patent GB-192026-A (GB)
Title: Improvements in or relating to gas meters
IPC: G01F3/22
Filed: 1922-08-01
Abstract: 192,026. Danaher, J. W. Aug. 1, 1922. Gas meters.-A device for preventing the reversal of direction of operation of a gas meter of the type provided with a tangent arm 4 and a spindle 5, operating the recording mechanism, connected to and rotated by said tangent arm, comprises a bell-crank lever 10 fulcrumed in such a manner that one end may be projected into the path of the tangent arm when the other end 12 is engaged by a worm 6 carried on the spindle 5. When the worm is rotated in its normal direction the end 12 of the lever 10 rides idly on top of the worm 6, but when rotation occurs in the opposite direction the threads of the worm engage the lever 10, causing the end 12 to lower and thus raise the other end to prevent further rotation of the tangent arm and attached mechanism.
Patent GB-1464577-A (GB)
Title: Container closures
IPC: B65D41/42
Filed: 1974-05-13
Abstract: 1464577 Metal closure AMERICAN FLANGE & MFG CO Inc 13 May 1974 [23 May 1973] 21045/74 Heading B8T  A metallic closure has a circular cap portion 2 stiffened by means of an annular embossment 11 which itself surrounds a circular embossment 13 the cap being integral with a cylindrical skirt 4, two score lines 6 passing across the surface of the cap and skirt and defining between them a tear strip 7 which extends in a direction perpendicular to the grain structure of the cap material, the score lines being ruptured at the time of opening by means of a pull tab 8. A gasket 10 is secured to the junction between cap and skirt.
Patent GB-1072471-A (GB)
Title: Method and apparatus for producing a copy of an original
IPC: G02B27/18
Filed: 1964-05-21
Abstract: 1,072,471. Feeding sheets. KEUFFEL & ESSER CO. May 21, 1964 [May 21, 1963], No. 21095/64. Heading B6B. [Also in Division G2] In a copying apparatus (see Division G2), sheets of copy material are fed from a plate 52 on to a processing platform by a reciprocating feed-bar 65 having two rubber rollers 66. The bar 65 is connected through a link 64a with a push-rod 64 which is mounted in a slide 43a of a support plate of the apparatus. The original to be copied is mounted in a drum 34 and the feed bar is synchronously reciprocated with each rotation of the drum by means of an eccentric plate 63 coupled to the push-rod 64 and operated by the drive shaft 44 of the drum 34. Guides 53 and an end stop 55 are adjustably mounted on the feed-plate 52.
Patent GB-597447-A (GB)
Title: Improvements relating to looms
IPC: D03D51/00
Filed: 1945-08-18
Abstract: 597,447. Driving looms. FROST, W. H. Aug. 18, 1945, No. 21117. [Class 142 (i)] Means for turning a loom comprise a worm which is normally out of gear with the wheel on which it operates to turn the loom and which can be put into gear with such wheel by the operator and turned to impart any required movement to the loom in either direction. In the form shown, the worm A is fixed on a shaft B which is rotatably mounted at its rear end in a lug C so as to be capable of a slight angular movement, the shaft B having slidably mounted thereon a block K' in which is rotatably mounted an eccentric sheave rotatable about a fixed pin M, spring means normally exerting a turning movement on the sheave to keep the worm in its out-of-gear position. The sheave has a plate P attached thereto which can be turned by a handle P' to put the worm into gear with a toothed wheel G, which may be the driving wheel on the top shaft of the loom, a hand wheel R being provided to rotate the worm shaft to turn the loom in either direction. Additional gearing may be provided to ease the turning of the hand wheel or the worm shaft may be motor-driven.
Patent GB-254900-A (GB)
Title: Engine valves and the method of making the same
IPC: F01L7/02
Filed: 1925-08-24
Abstract: 254,900. Vorel, F. Aug. 24, 1925. Closure members, rotary cylindrical.- A rotary valve for internal - combustion and other engines comprises a split hollow cylinder 5 in which is fitted a sector-shaped member 7 formed with a rectangular b o r e which is arranged to coincide with correspondingly shaped ports 8 in the wall of the cylinder 5, thereby forming a through-passage in the valve which serves to connect inlet and exhaust ports 23, 24 alternately with a cylinder port 30. The member 7 is fixed within the tube 5 by welding. In modifications, the faces 20, 21 of the member 7, instead of being flat, may be curved or angular. In multicylinder engines, the valve is made in several sections keyed together. A pair of packing-rings is fitted to each section. Copper, iron, brass, or aluminium may be used.
Patent GB-258246-A (GB)
Title: Process for the removal of impurities from minerals and rocks
IPC: B03B1/00
Filed: 1926-08-28
Abstract: 258,246. Grunwoldt, H. Sept. 11, 1925, [Convention date]. Silica is purified by treatment with a mixture of sulphuric and hydrochloric acids, together with oxalic acid or a salt thereof, the process being effected in the cold or with application of heat.
Patent GB-204823-A (GB)
Title: Improvements in cupping glasses
IPC: A61M1/08
Filed: 1922-08-04
Abstract: 204,823. Cateula, J. Aug. 4, 1922. Cupping-appliances. - A cupping appliance is provided with an annular groove 2 in its interior in order to prevent the residual film of burning liquid, used to heat and rarify the air, from reaching the patient's shin when the cup is inverted. The groove may be situated at the mouth of the glass, or at any suitable level.
Patent GB-153713-A (GB)
Title: A method of applying tension or drag automatically to threads when putting twist into both ends of threads simultaneously whilst doubling same
IPC: D01H1/00
Filed: 1919-09-01
Abstract: 153,713. Tetlow, A., and Tetlow, A. E. Sept. 1, 1919. Doubling-machines with twisting-arrangements at delivery; creel arrangements.-A fixed ring and traveller B is used with the delivery cop or cheese when twisting at both ends during the doubling of threads. The threads are led from a rotary spindle J, through the traveller and rollers D and wound on a doubling-spindle by a ring and traveller G. Reference has been directed by the Comptroller to Specification 12029/84.
Patent GB-257938-A (GB)
Title: Improvements in and relating to gearing and methods of making the same
IPC: F16H55/06
Filed: 1926-09-02
Abstract: 257,938. British Thomson-Houston Co., Ltd., (Assignees of Brophy, G. R.). Sept. 2, 1925, [Convention date]. Toothed gearing; compound forms. - Laminated gear wheels for use with electric railway motors &c. are built up from stampings of steel of low or medium carbon content, preferably with unfinished teeth and central orifices, with the fibres of each disc lying parallel to a diameter and the whole brazed together under pressure by pure copper in an electric furnace in an atmosphere of hydrogen or other non-oxidizing gas. The copper may be placed around the discs in the furnace or between them in the form of very thin laminations. The discs may be temporarily secured together under pressure in preparation for the brazing process by arc welding, the welds extending axiallv of the pile of discs. The gears may be case hardened at the periphery only by copper plating the centre &c.
Patent GB-395170-A (GB)
Title: Improvements in or relating to volumetric meters
IPC: G01F15/04
Filed: 1932-08-02
Abstract: 395,170. Electric signalling systems. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIAL D'USINES A GAZ, 12, Place des Etats- Unis, Montrouge, Seine, France. Aug. 2, 1932, No. 21659. Convention date, Oct. 21, 1931. Addition to 391,344. [Class 40 (i).] The rate of gas flow corrected to standard temperature and pressure is indicated by a voltmeter V arranged in series with a resistance P subjected to the gas temperature between one end of a potentiometer LN supplied with current from a magneto M rotated by the meter and a brush B which is moved along the potentiometer by a relay controlled by a manometer subjected to the gas pressure. The appropriate value R3 of the resistance P is found from the equation R1 + R2 + R3 (1 + #t) = (R1 + R2 + R3) X (1 + alphat) where R1 and R2 represent the resistances of the magneto armature winding and the moving coil of the voltmeter respectively, a represents the temperature coefficient of expansion of gases and # represents the resistance temperature coefficient of the resistance P. A magnetic shunt of nickel-steel may be provided for the voltmeter V to compensate for any variation in the resistances R1 R2 due to temperature changes.
Patent GB-575168-A (GB)
Title: Improved tool for cutting sheet metal, fibre board and the like
IPC: B23D29/00
Filed: 1943-12-24
Abstract: 575,168. Shearing metal &c. sheets. BEARD, C. L. Dec. 24, 1943, No. 21664. Convention date. Aug. 23. [Class 31 (i)] [Also in Group XXII] A shearing tool of the kind having two parallel fixed blades and a third blade moved between the fixed blades comprises a body 1 bifurcated at one end to form the fixed blades 2 with converging faces 15, 16, a flat blade 7 with a straight upper face 18 normally held at an angle to 16 by a spring 13, and means for moving the blade 7. This means may comprise a cam 22 of a shaft 21 adapted to fit the chuck of an electric or pneumatic drilling machine, the cam acting through a plunger 11 on the tail 10 of the blade 7 which is removably pivoted at 8 to the body 1. The fixed blades may have hardened steel inserts 4 and the blade 7 is shaped so as to be entered easily, Fig. 2. through holes drilled &c. through sheet metalfibre board &c. in making or repairing automobile or air-plane bodies, stove pipes &c. U.S.A. Specification 2,273,376 is referred to.
Patent GB-657506-A (GB)
Title: Improvements in and relating to the manufacture of textile materials
IPC: D06M13/184
Filed: 1948-08-18
Abstract: 657,506. Proofing textile materials. BRITISH JUTE TRADE RESEARCH ASSOCIATION, CORTEEN, H., and SOUTAR, T. H. Aug. 18, 1948, No. 21779. [Class 140] Textile materials comprising naturally occurring fibres of cellulosic origin, particularly those used for the manufacture of bags for fertilizers, are proofed against acidic fumes by incorporating therein approximately 3 per cent, or more, of a metallic alkaline salt of benzoic acid highly soluble in water, defined as benzoate of sodium, potassium, ammonium, calcium or magnesium. Bast-fibre twine may similarly be proofed by incorporating therein approximately 5 per cent, or more, of such a salt. The materials treated include jute, flax, hemp and cotton. Woven fabrics, or yarns, either single or ply, drawn in the form of a sheet from a beam, may be passed through an aqueous solution of the salt, excess being removed by passage between rollers, and dried ; or yarns or twines may be immersed in the solution, centrifuged to remove excess, and dried in the form of hanks. Or, a mass of jute fibres may be sprayed with a solution of the salt ; this may be done at the same stage as the fibres are sprayed with mineral oil and water or an emulsion thereof, the resultant product being subsequently spun as in the normal process. According to the Provisional Specification, the proofing agent may be the sodium or other salts of benzoic acid or its homologues, e.g. sodium toluate.
Patent GB-452648-A (GB)
Title: Improved half-tone screen for autotype copying processes
IPC: G03F5/12
Filed: 1935-02-25
Abstract: 452,648. Half-tone screens. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(I. G. Farbenindustrie Akt.- Ges.; Frankfort-on-Main, Germany) Feb. 25, 1935, No. 21790/36. Divided out of 452,578. [Class 98 (ii)] A screen for use in autotype copying processes comprises elements which are star-shaped transparent areas, preferably in the form of three - point or four-point stars. These may be arranged in cross-screen arrangement as shown in Fig. 3a or diagonally as shown in Fig. 4. In the latter case a mesh of 60‹ is preferred. The apertures may be bounded by straight lines as shown or by curved lines. The screens may be used in the process described in Specification 452,578.
Patent GB-775165-A (GB)
Title: Improvements relating to rolling apparatus for making turbine or compressor blades
IPC: B21H7/16
Filed: 1955-07-28
Abstract: 775,165. Rolling turbine and compressor blades. GENERAL MOTORS CORPORATION. July 28, 1955 [Aug. 23, 1954], No. 21817/55. Classes 83 (2) and 83 (4). Apparatus for cold rolling the airfoil portion of a turbine or compressor blade comprises opposed rolls 20, 22, Fig. 1, shaped to define between them the desired airfoil profile, a workholder 89 for receiving a blade blank and biased towards the rolls, a ram 50 for moving the workholder against its bias so as to drive the blank between the rolls, and rocker members 34, 36 interconnecting the ram with the rolls and acting as connecting-rods for rotating the rolls when the ram is moved. The rockers have knuckles fitting into sockets 38, 40 in the rolls and arcuate racks 42, 44 meshing with racks 46 carried by a platen 48 secured to a press ram 50. The racks 46 are vertically adjustable relative to the platen by slidable wedges 64. The segmental rolls 20, 22 are journalled on shafts 24, 26 in a fixture 52 mounted on the press table 54. Counterweights 56, 58 are provided for returning the rolls upon the upstroke of the ram; alternatively pneumatic or hydraulic devices may be used. The work-holder comprises spring fingers 89 mounted on a fixture 32 biased upwardly by a spring 102 or by hydraulic cylinders. A blade blank is fed by a push-rod down an inclined slideway 92, Fig. 4 (not shown), and against a stop-plate 95 where it is positioned between the fingers 89. In another embodiment, Fig. 3, the rockers 66, 68 have upper knuckles 70, 72 engageable in sockets 78, 80. The rolls may be moved towards or away from each other by mounting them on eccentric journals 104, 106, Fig. 6, mounted on gears 108, 110 which are adjusted by worms 112, 114 and gears 116, 118. In another embodiment, Fig. 8 (not shown), the eccentric journals are adjusted by pneumatic or hydraulic devices.
Patent GB-759269-A (GB)
Title: Improvements in or relating to electrical signalling apparatus
Inventor: FELIX MICHAEL OTTO
IPC: H04W84/02
Filed: 1953-08-07
Abstract: 759,269. Automatic exchange systems. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. July 20, 1954 [Aug. 7, 1953], No. 21889/53. Class 40 (4). [Also in Group XL (c)] A substation is connected to an automatic telephone exchange by a frequency-modulated radio link. Delay circuits in the receivers at both ends of the link prevent false operation by high-frequency signals of less than a predetermined duration. Dialling tone is provided. The substation modulates about a central frequency f1 and transmits impulses as pulses of frequency f2. The substation is called either by intermittent carrier or by frequency shift. Substation, calling, Fig. 1. A conventional subset includes switch hook contact C1, offnormal dial contacts C2, C3, and impulsing contacts C4. Line relay TA is followed by TB which starts the transmitter 13. Dialling tone returned from the exchange is fed to line through receiver 14 and hybrid 11. At the same time, relay TRS pulls up to provide a second hold on TB in response to the output from a limiter 42 after a delay introduced by circuit 44 (see later). Relay TA follows the dialled impulses and the transmitter shifts the frequency from f1 to f2 when TA is back, during each impulse. Exchange called, Fig. 2. In the receiver 16, a discriminator 19 produces no output for the central frequency f1. After a delay introduced by resistor 27 and capacitor 29, the output of limiter 18 renders a pentode 28 conductive in circuit 45 (see 44 before). The pentode is suppressed by the discriminator in response to pulses of frequency f2. When the pentode conducts, relay RS pulls up to complete the loop to the exchange 22. Relay B follows RS and RG starts the transmitter 40, dial tone from the exchange being fed to the transmitter through hybrid 21. Dialled impulses from the substation are repeated to the exchange by relay RS, the hybrid 21 and a choke 6 being shortcircuited by relay D during each digit. Exchange calling, Fig. 2. Interrupted ring- ing current from the exchange operates relay RG and provides an interrupted carrier from transmitter 40. On reply, relays RS, B pull up and RG is held by battery 39. The transmission may be shifted in frequency instead of interrupted. Substation called, Fig. 1. Relay TRS responds to the interrupter carrier from the exchange and connects ringing current to the subset from terminals 48, 49. On reply, relay TA, TB pull up and the transmitter 13 is started.
Patent GB-359460-A (GB)
Title: Arrangement for blocking parts of the line of a remote control installation against control currents
IPC: H02J13/00
Filed: 1930-07-19
Abstract: 359,460. Distant control systems. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London. -- (Siemens- Schuckertwerke Akt.-Ges. ; Siemensstadt, Berlin.) July 19, 1930, No. 21913. [Class 40 (i).] In a system in which control is effected by frequencies superposed on power mains, parts of the mains are blocked to the control frequencies. The control frequencies are generated by a generator 7 driven by a motor 8 which is gradually slowed down by the arm 102, driven by motor 9, which cuts additional resistances into the motor circuit. The switches 721 .. 761 control the frequencies sent out by closing circuits which respond to particular frequencies as they are generated by 700, and during that period corresponding switches 72 .. 76 are closed to energize field winding 70 of generator 7. Devices, such as 2, connected to the mains respond to these particular frequencies. The branch 5 is to be blocked to all frequencies. When 7 starts up 710 energizes, closing 71 and a leading frequency is connected to the mains to which 14 responds. The motor 18 moves the arm 203 one revolution as 102 makes one revolution, altering the tuning of the device 11, 12, 13 to correspond with the frequencies sent out by the generator 7. The motors 9, 18 may be synchronous motors asynchronously started, clock synchronous motors or motors with escapement and stop control operating three times a revolution or the motor 18 may be replaced by a step by step mechanism. The adjustment of 12 may be effected by a series of relays or the tuned circuit 11, 12, 13 may be replaced by relatively moved tuning coils. Three phase mains may be used. Another method of maintaining the tuning circuit in step with the frequency generator is illustrated in Fig. 7. 22 is the superimposing generator and 50 a three-phase driving motor with variable resistances 51, 511 in its rotor circuit. The tuning devices &c. are not shown. The motors 50, 510, 520 start up simultaneously, motor 510 gradually reducing the resistance in the rotor circuit of 50. When 22 sends out the leading frequency 54 responds coupling 524 with 520 through the electric coupling 53. When 524 reaches 521 relay 59 operates and at this point 22 should be sending out the frequency to energize 55, which enables 60 to pull up through a circuit a, b (not shown). If 510, 520 are not running synchronously relays 59, 60 do not energize together and 58 moves to alter 511 and provide an adjustment of the speed of 50. Similar checking is provided when 524 engages 522, 523. Corresponding lamps 5230, 5700 ; 5220, 5600 and 5210, 5500 are provided to check the operation of 59, 60. This adjusting system is provided at one only of the blocking stations in the system, or preferably at a checking unit, in the transmitting station.
Patent GB-942939-A (GB)
Title: Improvements in rapid access digital data storage system
IPC: G11B27/32
Filed: 1960-06-23
Abstract: 942,939. Digital data storage apparatus. GENERAL ELECTRIC CO. June 23, 1960 [June 25, 1959], No. 21974/60. Heading G4C. In the digital data storage system of Specification 913, 971 in which data is stored as surface distortions of a plastic surface, the surface is divided by intersecting "streets" into an array of rectangular sub-blocks each containing a number of lines of data. As shown in Fig. 1 a block of data comprises 64 sub-blocks separated by streets 111, 112, and each sub-block comprises 512 lines each of 16 words. Fig. 4 shows the data-readout system; four blocks 113 are arranged in a square array in evacuated housing 11 (only two blocks are shown) and light from a flying-spot scanner 221 is focused on each by a lens system 222. Transmitted light, when not refracted by the plastic surface, is focused on a shield 231, and its intensity of illumination, given by the combined outputs of two photomultipliers 229 indicates one or other depth of depression of a data line. Address selecting of a block is by selecting the appropriate pair of photomultipliers, of a sub-block by a digital analog converter bringing the spot of tube 221 to a position where it is focused at a corner 271 of the sub-block, and of a word by counting down a line counter by the output of the photomultipliers as lines engraved on streets 111 are scanned (Fig. 3, left-hand-side) and similarly counting the words in a horizontal scan of the selected line. The differential output of the photomultipliers may be used to control the accurate scanning of a data line through a servo-system, since any unbalance will be due to the spot not running along the bottom of the depressions in a line.
Patent GB-485133-A (GB)
Title: Improvements in packings for journal boxes and the like
IPC: B61F17/06
Filed: 1937-08-10
Abstract: 485,133. Capillary-action lubricators. MERCER, R. (Spring Packing Corporation) Aug. 10, 1937, No. 22001. [Class 12 (iii)] An axle-box lubricator comprises a number of cloth envelopes 17 containing oil absorbent packing arranged beneath the journal, each envelope having an inturned flap 19 whereby it may be filled with variable amounts of packing.