baber/WOPTO huggingface dataset:
Patent GB-494697-A (GB)
Title: Improvements in or relating to navigation aiding radio systems
IPC: G01S1/02
Filed: 1937-04-30
Abstract: 494,697. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and WRIGHT, G. M. April 30, 1937, No. 12390. Drawings to Specification. [Class 40 (v)] In order to avoid " night effect," the beacon station transmits a carrier-wave of constant amplitude which is frequency-modulated by an audible note. Owing to the difference in the paths of the direct wave and the space wave, there will be a phase-displacement of the two frequency-modulated signals, and this produces a change of amplitude which will be audible in the receiver. When the receiving frame, which should be flatly-tuned, is in the minimum position, there will be no pick-up from the direct wave, and therefore no audible amplitude changes. In this way the night effect of the space wave is eliminated and the correct bearing is indicated. The same type of transmission can be used for direction-finding in the day-time by using a local oscillator to make the frequencymodulation audible on the direct wave.
Patent GB-611265-A (GB)
Title: Improvements in or relating to pressure operated temperature indicating, recording or controlling devices
IPC: G01K5/68
Filed: 1946-04-25
Abstract: 611,265. Temperature-responsive actuating elements. GRANT, C. R. A. April 25, 1946, No. 12557. '[Class 64(ii)] [Also in Group XX] A pressure-operated temperature controlling device comprises an outer sheath 1 and a tubular inner member 4 of differing coefficients of expansion, in which the end 3 of the inner member inside the sheath is in the form of a valve co-operating with a valve seat 2 inside the sheath, and the other end 9 passes through the end 8 of the sheath and receives air at constant pressure. The end 7 of the sheath, containing the valve 3 and valve seat 2 is located inside the furnace 10 whose temperature is to be controlled and the flow of air from the inner member 4 to the end 6<1> of the sheath and through the valve varies with that temperature because of the differential expansion of the valve 3 relative to the seat 2. This varying air flow is taken from the sheath 1 by a tube 11 to a restrictor 12 associated with a pressure-operated controlling device 14.
Patent GB-591981-A (GB)
Title: Improvements in and relating to punches for perforating papers for filing
IPC: B26F1/36
Filed: 1945-05-18
Abstract: 591,981. Feeding webs. ENGLISH NUMBERING MACHINES, Ltd., and KATZ, L. NAMENYI-. May 18, 1945, No. 12597. [Class 100 (i)] [Also in Groups VIII and XV] In a machine for punching paper for filing, and, also if desired, reinforcing the perforated parts by the application of a self-adhesive reinforcing tape 14 which is fed from a roll and severed by a knife 29 during the punching operation, the tape 14 is advanced at each operation of the lever 5 which operates the punches 3 by means of pins or projections 13 on a bow-shaped spring 11 connected to lever arms 10 which are moved with the lever 5 and act to advance the tape as the lever 5 is returned to inoperative position after a punching operation. The pins 13 are forced into engagement with the tape by the co-operation of a pair of cam surfaces 19 and a pair of bent plates 23, Fig. 2 not shown, with curved extensions below which the ends of the bow 11 is directed by the cams 19. The pins 13 are arranged above slots 16 in the base of the apparatus. Spring members 17 attached to the levers 10 press the tape on to the base plate. As the levers 10 return upon downward movement of the lever 5, extensions on the plates 23 direct the ends of the bow 11 above the plates so as to free the tape from the pins. If no tape is required to be fed the arms 21 carrying the cams 19 are tripped by a lever arm 22 to the position shown in dotted lines in Fig. 3, so that the feeding-pins do not operate. The punchings are received in a box 27.
Patent GB-828073-A (GB)
Title: Improved circuit arrangement for vapour electric discharge devices
IPC: H02M1/02
Filed: 1956-04-25
Abstract: 828,073. Converting. GENERAL ELECTRIC CO. April 25, 1956 [April 25, 1955 (2)], No. 12688/56. Class 38 (2). Inverse voltage protection for the starting electrodes 20 of ignitrons is provided by connecting a saturable reactor 28, 29 in the circuit of the starting electrodes, each reactor having a biasing winding 30 or 31 supplied from a direct current source so as to completely saturate the reactor, the magnetizing effect of the biasing winding aiding the magnetizing effect of the firing impulses flowing in the main reactor winding 26 or 27 and opposing the magnetizing effect of the inversely directed impulses in the main reactor windings. Thus the firing impulses tend to increase the saturation of the reactor which thereby presents little impedance to the firing impulses whilst the inversely directed impulses tend to desaturate the reactor which in consequence presents a high impedance to the inversely. directed impulses. A phase-shifting circuit 21 and a waveform peaking circuit 22 of normal design is incorporated in the apparatus in order to ensure that the firing point of the ignitrons can be accurately determined Specification 742,877 is referred to.
Patent GB-450273-A (GB)
Title: Improvements in or relating to filling up high pressure gas into bottle
IPC: F17C5/06
Filed: 1935-04-29
Abstract: 450,273. Storing gases under pressure; revaporizing liquefied gases. SHIMIZU, T., 11, 3-chome Surugadai, Kanda-ku, Tokio. April 29, 1935, No. 12753. Convention date, May 16, 1934. [Class 8 (ii)] A measured quantity of liquefied gas is delivered by a pump 4 into a vessel 18 contained in a vaporizer 17 ; the liquid is transferred to the vaporizer and the gas evolved stored in a pressure container 33. The delivery from the vessel to the vaporizer is effected through an aperture controlled by a needle valve on the end of a spindle 21 controlled by a float 19 ; the spindle is held open by a ball catch and afterwards released by a screwed rod 23 acting on it through a spring. A tilting bucket with an adjustable weight may replace the vessel 18. The vaporizer may be enclosed in a vessel of brine &c., and the pump may be submerged in the liquefied gas.
Patent GB-129250-A (GB)
Title: Improvements in and connected with Baling Presses.
IPC: A01F15/04
Filed: 1918-08-06
Abstract: 129,250. BlanchÞre et Fils, A. July 1, 1918, [Convention date]. Baling-presses.-Relates to presses which are either fixed in position or mounted on wheels and which are intended for baling straw, forage, &c. The press comprises three hydraulic rams which subject the material to a first compression in a vertical direction, then two compressions horizontally in opposite directions, the press chamber being co-axial with the vertical ram. The ram operating in the cylinders d<1>, d is a differential one, the final compression being given by the part having the larger area. In order to prevent the formation of a vacuum in the cylinder d during the operation of the ram in the cylinder d', a valve arrangement shown in Fig. 2 is employed to allow water not under pressure from the tank t to be drawn into the cylinder. The press plates j, p are formed with guards k, q which partially close the opening of the first press chamber a into the final press chamber, and thus allow a further charge to be prepared in the chamber a whilst the binding of the bale proceeds. Pins n passed through holes in an iron plate engage parts l on the press plate j to hold it in the forward position. In order to permit several compressings in successive layers to be made in the chamber a, claws 8 are provided so as to hold down the compressed layers. The framework carrying the press may carry a pump f operated by a motor h and the tank t.
Patent GB-455968-A (GB)
Title: Improvements in or relating to apparatus for transmitting indications or movements to a distance
IPC: G08C19/06
Filed: 1935-04-30
Abstract: 455,968. Electric signalling systems. ELLIOTT BROS. (LONDON), Ltd., Century Works, Lewisham, Kent, and SHOTTER, G. F., 14, The Ridgeway, Friern Barnet, Middlesex. April 30, 1935, No. 12859. Drawings to Specification. [Class 40 (i)] In the systems as claimed in Specifications 405,043 or 405,338 wherein indications or movements of a member are transmitted to a distance by a coil or conducting member which links two magnetic circuits, one of which is connected to an A.C. supply and the other generates signalling currents for transmission to a receiver, the variations of phase of the flux in the second magnetic circuit which produce errors in operation, are compensated by the provision of reactance in the transmission circuit.
Patent GB-1312429-A (GB)
Title: Monolithic memory cell
IPC: H01L27/11
Filed: 1972-03-20
Abstract: 1312429 Memory cell array INTERNATIONAL BUSINESS MACHINES CORP 20 March 1972 [14 April 1971] 12861/72 Heading G4C [Also in Division H3] A memory cell of two insulated gate fieldeffect transistors 11, 12 intercoupled drain-togate has two load insulated gate field-effect transistors 22, 23 each with thicker gate-channel insulation then that of the transistors 11, 12. A transistor 31 is parasitic and is formed by a conductor 35<SP>1</SP> (Fig. 2, not shown), passing between doped regions 34 and 30 when the cell is of integrated form. It is maintained off, when transistors 22, 23 are turned on, by voltage on line 30 which increases the threshold of the transistor 31. The cell has bit/sense lines 39, 40 and a plurality of such cells may be formed in one monolithic silicon body (Fig. 3, not shown) to form a memory array.
Patent GB-1509142-A (GB)
Title: Lead assembly
IPC: H01L23/495
Filed: 1976-03-31
Abstract: 1509142 Semiconductor devices AMP Inc 31 March 1976 [18 Nov 1975] 12911/76 Heading H1K A plurality of convergent metal fingers 16, the inner ends of which define an area in or over which a semiconductor chip is to be received with its contacts connected to the fingers 16, is bonded to an insulating support sheet 10, at least some of the support sheet 10 having been removed both from the chip receiving area and from the outer ends of the fingers, but the fingers 16 remaining supported by the sheet 10 throughout their lengths. The arrangement allows for differential thermal expansion between the sheet 10 and fingers 16 while maintaining adequate support for the latter. A plurality of such arrays of fingers may be provided on a common support sheet.
Patent GB-1420287-A (GB)
Title: Pyridine-carboxylic acid lactones and pressure-sensitive recording material containing them
IPC: B41M5/136
Filed: 1974-03-22
Abstract: 1420287 Benzoylpyridinecarboxylic acids HODOGAYA CHEMICAL CO Ltd and FUJI PHOTO FILM CO Ltd 22 March 1974 [23 March 1973] 12928/74 Heading C2C [Also in Divisions C4 and D2] Benzoyl pyridine carboxylic acids of the general formulae wherein R 1  is H, C 1 -C 5  alkyl or benzyl, R 2  is C 1 -C 5  alkyl, benzyl or a phenyl radical optionally substituted by C 1 -C 5  alkyl or halogen, R 3  is H, C 1 -C 5  alkyl, halogen or phenyl and R 5  is H or C 1 -C 5  alkyl are prepared by reacting an anhydride of the general formula with an anilino compound of the general formula Preparation Example 1 describes the isolation of each isomer.
Patent GB-650989-A (GB)
Title: Improvements in or relating to machines for carding textile fibres
IPC: D01G15/80
Filed: 1948-05-12
Abstract: 650,989. Removing dust, fly &c. from carding engines. HALL & KAY, Ltd. HALL, S.. and KAY, E. May 12, 1948, No. 12960. [Class 120(iii)] A roller and clearer carding machine, having hinged covers 9, 10 enclosing the worker and clearer rollers, is provided with suction passages 13, 14 which communicate with a source of suction, through a doublelimbed nozzle 17 supplied with openings 25, 26, and are in proximity to the taker-in 6 and the doffer 7 when the covers 9, 10 are in their lowered, closed position and which are cut off from the suction source when the covers 9, 10 are raised for stripping and grinding, while the nozzle 17, in this position, opens directly to atmosphere to remove grinding or other dust. The suction passages 13, 14 preferably extend for the full width of the covers 9, 10 at their lower ends and taper towards their upper ends, which are formed with enlargements 15, 16 provided with sealing pads. The nozzle 17 also may communicate with the space enclosed by the covers 9, 10 during normal working by means of openings in the otherwise blanked off ends of the limbs 19, 20 of the nozzle 17.
Patent GB-1084887-A (GB)
Title: Production of nickel powder
IPC: B22F9/22
Filed: 1965-03-26
Abstract: High purity nickel powder is produced by treating a slurry of nickel carbonate (up to 150 grams per litre of Ni) in aqueous ammonium carbonate solution (up to 1.5 moles CO2 per mole of Ni and up to 8 moles NH3 per mole of Ni) with hydrogen at a temperature above 100 DEG  C. and with a partial pressure of hydrogen above 100 p.s.i. The density of the powder produced may be varied by controlling the conditions within the above ranges.  The initial nickel carbonate slurry may be produced by heating an aqueous ammoniacal nickel ammonium carbonate solution (e.g. by steam injection) to precipitate basic nickel carbonate.
Patent GB-181570-A (GB)
Title: Improvements in building blocks and in walls formed therewith
IPC: E04B2/28
Filed: 1921-05-07
Abstract: 181,570. Bennett, M. B. May 7, 1921. Building-blocks, special shapes of.-In double walls having a continuous air space, the outer part of the wall is, except at the corners, formed of one type of concrete block only, the block having transverse extensions C to form internal piers, and the inner part of the wall being formed of flat slabs E connected to the blocks by metal &c. ties F. At the floor or roof plate level, continuous horizontal lintels H may be formed.
Patent GB-715415-A (GB)
Title: Improvements in and relating to measuring apparatus
Inventor: TAYLOR HARRY BURN
IPC: G01R27/26
Filed: 1952-05-23
Abstract: 715,415. Electric tests. BRITISH THOMSON-HOUSTON CO., Ltd. May 26, 1953, [May 23, 1952.] No. 13136/52. Class 37. Apparatus for determining characteristics of a body e.g. dielectric constant, or Q value, by noting the change in resonant frequency of a tuned cavity when the body is introduced is characterized in that the oscillator also feeds into a second, fixed tuned cavity so that the frequency may be maintained constant by noting the resonance characteristic of the second cavity. A variable high frequency oscillator 3 feeds into a fixed cavity resonator i and variable cavity resonator 2 through a wave guide 5, the outputs being rectified at 4 and supplied to galvanometers or oscilloscopes (not shown). The oscillator 3 is made to sweep cyclically through a range of frequencies including the resonant frequency of resonator i. Initially resonator 2 is tuned e.g. by a piston, to bring its characteristic into coinciddence with that of resonator i. The body is then introduced into cavity 2 which is returned by the piston into coincidence with the characteristic of cavity I, the change in position of the piston being indicative of the comparable characteristic of the body. If the change in Q is to be measured, an attenuator is added in the output circuit of the reference resonator I, and the difference between the two positions at which the output from cavity 2 is equal to this attenuated output from cavity I indicates the Q value.
Patent GB-849450-A (GB)
Title: Improvements in or relating to rotary cutter drums for mineral-mining machines
Inventor: ANDERSON JAMES
IPC: E21C25/10
Filed: 1957-04-25
Abstract: 849,450. Mineral-mining machines. ANDERSON, BOYES & CO. Ltd. April 18, 1958 [April 25, 1957], No. 13184/57. Class 68(1). The rotary cutter drum of a mineral-mining machine is diametrically split and the component parts of the drum are united by the bolting together of a pair of female annular wedges 14, 15 to bind on mating conical seats 16, 17 at the opposite ends of the boss portions of the parts of the drum. The axial length of the drum can be increased by bolting on to the drum one or more end sections 10a, 10b.
Patent GB-1029498-A (GB)
Title: Tape drive systems involving electrostatic forces
IPC: H02N13/00
Filed: 1964-03-31
Abstract: 1,029,498. Electrostatic clutches. PACKARDBELL, ELECTRONICS CORPORATION. March 31. 1964 [April 3, 1963], No. 13220/64. Heading H1P. [Also in Division G5] A tape drive system comprises a pair of endless conductive belts having contiguous runs between which a tape may be sandwiched, means for driving at least one of the belts, and a source of potential difference which may be applied between the belts so as to attract the contiguous runs together, so clamping and driving the intervening tape between the belts. In a first embodiment, Fig. 1, pairs of belts 32, 33 and 34, 35 are arranged to be continuously driven in the direction shown by the arrows, and further pairs of belts 30, 31 and 36, 37 are arranged about fixed posts. Each belt includes a conductive layer running longitudinal around it, which contacts an associated wiper 30c ... 37c, and the tape 10 running between spool 15, 16 passes between each pair of belts. The wipers are connected to a control circuit, Fig. 2 (not shown), and applying a potential, e.g. a square wave signal, between wipers 32c, 33c causes belts 32, 33 to be attracted together clamping the tape 10 between them thus feeding it from right to left. If wipers 34c, 35c are energized instead, the direction of feed is reversed. Energizing 30c, 31c and/or 36c, 37c holds the tape clamped in a stationary position. In an alternative arrangement, Fig. 4, the belts 90 .. 93 pass loosely over rollers 96 ... 99 and also over fixers post 100 ... 103. The rollers and posts are selectively connected to a source of potential via a control circuit, Fig. 9 (not shown), so as to attract and positively engage the belts and thus the tape 10 may be driven forwards or backwards or clamped in a stationary position. In order to ensure that the rollers where not being energized remain at the same potential as the belt, a stabilizing voltage may be connected to them via variable resistors, Fig. 9 (not shown). The use of a stabilizing voltage may be obviated by providing a number of conductive coatings on a common belt. In this case, the rollers, e.g. 180, Fig. 12, are arranged adjacent a fixed post 181 associated with separate conductive sections 185A, 185B on the belt. An additional stationary section 190 may also be provided associated with a third conductive section 185C to balance the forces. In order to smooth the attractive force two individual system, out of phase with each other may be associated with each belt, Fig. 15 (not shown).
Patent GB-592526-A (GB)
Title: Securing and insulating cable-end terminals
IPC: H01R13/658
Filed: 1944-12-08
Abstract: 592,526. Cable and wire terminals ; cable harness. TITEFLEX, Inc. Dec. 8, 1944, No. 13230/46. Convention date, Oct. 14, 1943. Divided out of 590,617. [Classes 36 and 38 (i)] A threaded terminal 24 connected, as by crimping and soldering, to the conductor 13 of a cable 12, is moulded into secondary insulation 19 moulded over the cable-insulation 14 and preferably pre-moulded to fit into an elbow 7 of a radio-shielded spark-plug assembly. A flange 22 may seal the elbow as in Specification 590,617. A flanged insulator 26 is secured over the terminal by a metal head 28 threaded on the latter and carrying an electrode engaging spring 29.
Patent GB-572238-A (GB)
Title: Improvements in or relating to sewing machine attachments
IPC: D05B77/00
Filed: 1943-08-17
Abstract: 572,238. Sewing-machine attachments. GEGAUF'S SOHNE AKT.-GES., F. Aug. 17, 1943, Nos. 13376, 13377 and 13378. Convention dates, April 17, 1942, April 1, 1943 and July 20, 1943. [Class 112] In a sewing-machine having a loop taker 4, arranged in a projecting arm 1, additional work surface is provided by a table 8, clamped to the arm 1. Fig. 3 shows one arrangement in which the table 8 has a pin 15 which engages a hole 16 in the arm 1, and a spring-pressed ball 13, enters a notch in a bridge-piece 12 of the table and prevents axial movement of the latter until a strong force is applied. Yokes 10 are curved. at their tops and clamp against packing on the arm 1 located on each side of an aperture 17. A lid 22 is arranged in the upper surface of the table, and a closure cap 3 may be hinged downwards to gain access to the loop-taker 4. Packing 19 is provided. Other than sliding- means may be used for attaching the table. In a second arrangement, support stays are hinged downwards from the remote end of the table 8, so that the lower end of each stay rests on the table supporting the machine. A further arrangement, Fig. 11, has table-clamping means in the form of an eccentric 34 which is rotated by a handle 31 on a spindle 32, causing edges e to grip the arm 1.
Patent GB-133772-A (GB)
IPC: A46B3/00
Abstract: 133,772. Benson, J. Oct. 16, 1918. Bristles, fixing; brush-making tools. - Bristle tufts 2, Fig. 5, are inserted between two lengths of wire 1, alternate tufts projecting in opposite directions, and the wire is then twisted until the tufts are firmly gripped and disposed in the same radial direction. The twisted wires may then be secured to a handle, or to a stock 5 by screwed hooks 7. The wire 1 is preferably a loop, which projects at each end beyond the bristles, and may be twisted by a machine, Fig. 6, comprising a chuck 10 with a handle 12, and a collar 14 which can be engaged by a screw 16 on the bracket 11 to lock the chuck. The looped end of the wire is attached to a hook 19 which can be locked or rotated by a rod 25, so that the wire may be twisted from either end.
Patent GB-133779-A (GB)
IPC: A21C11/10
Abstract: 133,779. Douglas, W. P., and Sonsthagen, A. Oct. 17, 1918. Cutting - apparatus. -Relates to cutting- appliances for dough &c., of the type comprising a tubular cutter and a spring- actuated stripping- plate, and consists in so arranging the stripping-plate that the material is not compressed thereby. Fig. 1 shows one form comprising a hollow frame b, serving as a receptacle for the cut pieces, furnished with interchangeable hollow cutters c working through a stripping-plate d' into which are screwed pins d<2> working through the frame b. Springs d interposed between the parts d<1>, b tend to force the cutters away from the plate d', the extent of this movement being limited by pins passed through the pins d<2>. To avoid compression of the material, the plate d<1> is furnished with feet e, or the pins d<2> may extend through the plate. The members b, d' are furnished with handles a<1>, d<3>. Fig. 5 shows a modification comprising a rigid frame consisting of slotted end members g<2> connected by pieces g, a cutter plate i and a stripping-plate i<1> passing through the slotted end members, pins j<1> adjustably connected by nuts j<2> to the plate i<1> and passing through holes in the plate i, and springs l encircling the pins j<1> and interposed between the plates i, i<1>. The cutters k may be additionally supported by a plate i<2> supported from the plate i by studs i<3>.