baber/WOPTO huggingface dataset:
Patent GB-1164573-A (GB)
Title: Capacitor Read only Stores
IPC: G11C17/00
Filed: 1968-03-21
Abstract: 1,164,573. Capacitive read-only stores. INTERNATIONAL BUSINESS MACHINES CORP. 21 March, 1968 [4 April, 1967], No. 13622/68. Heading G4A. In a capacitor read-only store, each two drive lines, e.g. 12, 14, share a balance line 24, and at each bit position two capacitive members 34a, 34b couple the drive line to one of a pair of sense lines e.g. 26 and the balance line to the other. The capacitive members 34a, 34b or the sense lines may be slotted to increase coupling.
Patent GB-702940-A (GB)
Title: Improvements in or relating to apparatus for x-ray examination
IPC: A61B6/04
Filed: 1951-06-08
Abstract: 702,940. X-ray apparatus. SIEMENS-REINIGER-WERKE AKT.-GES. June 8, 1951 [June 9, 1950], No... 13709/51. Class 98(1) X-ray apparatus includes a stand or the like 7 supporting an X-ray tube above a tilt-table mounted on a horizontal axis 2, the tilt-table comprising a frame supporting a table top 5 and a carriage 3 for both an X-ray tube and a fluorescent screen of photographic film, the table top and the carriage being displaceable along the frame, and a screen or cassette carriage 6 movable below the table top. The parts of the frame on either side of axle 2 may be of unequal length, the table top being displaceable over the shorter end of the frame at least by the length of the tube and screen carriage. Each side of the frame comprises two U-sectioned rails 8, 10 one above the other, connected to each other and to similar rails on the opposite side of the frame by plates 12, 13, the open sides of the rails facing inwards. Bearing plates 14 on both sides of the frame are mounted on the axle 2 carried by a base 1. Tilting is effected by means of a link 16 pivoted to one end of the frame and having rack teeth engaging a pinion 17 driven by a motor 18. The carriage 3 has rollers 4 running in the lower rails of the frame. The table top 5, together with a foot rest. 19, is supported on rollers 20 which travel in the upper rails of the frame. Threaded shafts 25 are rotatably mounted on both sides of the frame, and may be driven by worm gears by a motor 21 mounted in a housing 31 under the foot of the table top 5. Threaded lugs 33 fixed to the table top 5 engage the shafts 25, so that the table top 5 can be moved thereby along the frame until it is clear of the carriage 3 at the other end of the frame. If the top 5 is arranged to move beyond the frame in the opposite direction, an aperture is formed in plate 12 through which the motor 21 and its housing 31 passes. The carriage 6 has rollers 26 running on rails under the table top 5, and has a disc 39 pivoted eccentrically at 38 to a lug 37 on the carriage 6 By turning a handle, disc 39 may be turned to engage rail 8 to lock carriage 6 with respect to the frame. The carriage 6 may be connected for movement with the stand 7.
Patent GB-740131-A (GB)
Title: Process for coating graphite powder with a copper-lead alloy
IPC: B22F9/24
Filed: 1954-05-11
Abstract: A process for coating graphite powder with a copper-lead alloy, comprises agitating in an aqueous solution of a copper salt the graphite powder in admixture with a lead-zinc alloy powder consisting of 0.5 to 10 per cent lead and the remainder zinc or a lead-zinc-copper alloy powder consisting of 0.5 to 10 per cent lead, 0.5 to 20 per cent copper and the remainder zinc.  The alloy powder preferably has a grain size within the range 80 to 200 mesh and the copper salt may be the sulphate, chloride or acetate.  By way of example are described the use of (a) copper sulphate solution and a copper-lead-zinc alloy consisting of 15 per cent copper, 5 per cent lead and 80 per cent zinc and (b) copper sulphate solution and a lead-zinc alloy consisting of 95 per cent lead.
Patent GB-149801-A (GB)
Title: Improvements in insulators for overhead transmission lines such as telegraph and telephone line wires
IPC: H01B17/22
Filed: 1919-05-31
Abstract: 149,801. Chantler, E. A. May 31, 1919. Insulators. - Electric conductors C are soldered in lugs B which are moulded in the insulators A. The lug is made of galvanized iron, copper, &c., and has a tinned groove b', and splayed ends b<2>, b<3> embedded in the insulator. The lug may be carried on top of the insulator, or at the side, and may be lengthened by a channel strip soldered in the groove. For bends, the lug and strip may be curved to any suitable radius. The lug may be in two parts secured together, or may be cast; in the latter case the channel strip may be integral with the lug. The splayed ends b<2>, b<3> may be in the form of a dovetail.
Patent GB-495775-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K19/14
Filed: 1937-05-18
Abstract: 495,775. Synchronous motors. BRITISH THOMSON-HOUSTON CO., Ltd., and ANSCOMBE, L. D. May 18, 1937, No. 13845. [Class 35] A salient-pole synchronous motor having an excitation winding on the rotor and a separate insulated polyphase starting and damping winding embedded in the pole shoes has these two windings so arranged that the induced voltage of the starting winding is subtracted from that of the excitation winding for reducing the potential to earth of the excitation winding. In the form shown in Fig. 1, the winding ABC is embedded in the shoes of the salient rotor poles in the order ACB and is connected through slip-rings D to a starter S, the poles also carrying an exciting winding F, one end of which is connected to a fourth slip-ring. In Fig. 3, o, f represents the voltage induced in the exciting winding leading the voltage o, c of phase C by a quarter of a cycle. By joining the end of the exciting winding to phase A, of.which the vector is o, a, the vector o, f may be transferred to a, f<1>, and the voltage induced in the exciting winding is opposed by the slip-ring voltage ab giving a resultant above earth of b, f<1> if the point E<1> is earthed. Alternative earthing points are E<2>, E<3>.
Patent GB-1277987-A (GB)
Title: A method of and machine for cutting sheet material
Inventor: PINEL LEONARD CHARLES
IPC: B26D1/24
Filed: 1970-03-24
Abstract: 1277987 Cutting apparatus J K O CUTTERS Ltd 19 April 1971 [24 March 1970] 14056/70 Heading B4B A machine for cutting sheet material e.g. plastics laminated sheet, comprises at least one pair of discs one of which has a peripheral groove 29, the discs being rotatable in opposite directions whereby the sheet is cut with a shearing action as it passes between a pair of rotating discs. The discs are rotated by means of an electric motor 2, gear-box 3 and a chain-andsprocket drive 5, 20, 24, 25. Although the machine is self-feeding a pair of pressure rollers (37, 38) Fig. 1 (not shown) is provided. A pair of pressure pads (32) serve to maintain the material in contact with the feed and delivery tables (30), 31 and also to strip the material from the cutting discs. Adjustable scrapers 39 are provided for removing waste material from the grooves 29.
Patent GB-811462-A (GB)
Title: Continuous feeder
Inventor: JR PAUL ALBERT COFFMAN
IPC: G01G13/24
Filed: 1956-05-07
Abstract: 811,462. Fluid-pressure servomotor control systems. B.-I.-F. INDUSTRIES Inc. May 7, 1956, No. 14058/56. Class 135. [Also in Group XXXVIII] Apparatus for weighing fluid material continuously comprises two hoppers which are filled alternately, the rate at which the one hopper is being filled controlling the rate at which the other hopper is being emptied, the change-over occurring when the weight of the filling hopper reaches a predetermined value. Electrical embodiments.- Two upper hoppers 10, 14 (Fig. 1) are continuously filled with material which is allowed to fall alternately into two lower hoppers 12, 16, each hopper having a rotary valve 18, 20, 22, 24 controlled by an electric motor 26, 28, 30, 32 respectively the arrangement being such that when lower hopper 12 is being emptied the outlet from its upper hopper 10 is closed, while upper hopper 14 is feeding into lower hopper 16 which is itself cut off. Each of the lower hoppers 12, 16 is supported about a fulcrum 50, 52 and is balanced against a counterpoise weight 58, 60 movable along scale beams 46, 48 in opposite directions by a motor 76 through a reversible clutch 72. At the start of a cycle, after operation of limit switch 118, motor 76 drives the counterpoises to produce unbalance of the beams 46, 48 whereby switch 124 is closed intermittently to energize motor 28 and valve 20, and switch 126 is closed intermittently to energize motor 30 and valve 22, thereby maintaining the rate of emptying hopper 12 at the same rate as the filling of hopper 16. When counterpoise 58 reaches limit switch 116, clutch 72 reverses the direction of rotation of shaft 70 and the apparatus continues to operate with hopper 16 emptying and hopper 12 filling. A counter 185 indicates the total weight of material flowing through the hoppers by counting the revolutions of shaft 70. In a modification (Fig. 2, not shown), the control switches 124, 126 are replaced by fluid pressure switches. In a further embodiment (Fig. 3) the weight of the hoppers 412, 416 is determined by strain gauges 442, 444 which form one arm of bridges 500, 502 whose unbalance currents control the rates of filling and emptying the hoppers. Pneumatic embodiment.-The weights of the hoppers 612, 616 (Fig. 4) are sensed by pneumatic transducers 704, 706 which control the rates of filling and emptying via control units 641, 643 acting on diaphragms 629, 631 controlling gates 620, 622. Change-over is effected by limit switches 716, 718 reversing the operation when the filled hopper reaches a predetermined weight.
Patent GB-457440-A (GB)
Title: Improvements in and relating to mercury boilers
IPC: F22B3/02
Filed: 1936-05-18
Abstract: 457,440. Separating liquid from mercury vapour. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London. May 18, 1936, No. 14078. Convention date, May 17, 1935. [Class 123 (iii)] [See also Groups XXVI and XVIII] In a mercury vapour drum, liquid is separated from the vapour by lower and upper cages 176, 177 containing oppositely directed baffles. The cage 176 comprises cylindrical walls 178, 179, 180 connected by baffles which are curved at the top. The upper cage 177 separates liquid particles entrained in the vapour discharged from the tubes 146 and passed through the liquid in the cage 176. The cage 177 comprises rows of staggered baffles inclined at 30‹ to the horizontal and secured by rings. Specification 434,386, [Group XXVI], is referred to.
Patent GB-459947-A (GB)
Title: Process for producing vinyl resins
IPC: C08F14/06
Filed: 1935-05-14
Abstract: Vinyl resins of high average molecular weight are manufactured by polymerizing vinyl compounds by the aid of heat and a polymerization catalyst in the presence of a medium which is a solvent for the monomeric vinyl compounds but a non-solvent for the polymers produced, and separating the precipitated polymers from the said medium as they are formed and removing them, with little or none of the monomeric vinyl compounds, from the reaction system in order to maintain the proportion of monomeric vinyl compounds, in the total of vinyl compounds present, high and substantially constant.  The process may be made continuous by supplying to the reaction system additional quantities of monomeric vinyl compounds to replace the polymers removed.  The removal of the polymers may be effected by circulating the liquid through a filter press or into a settling tank or salt box.  The process is applicable to the polymerization of vinyl halides, e.g. the chloride, vinyl esters of aliphatic acids, especially of the lower fatty acids, e.g. the acetate, propionate, butyrate, formate and chloracetate, and styrene, or mixtures of these substances.  Suitable liquid media are paraffin hydrocarbons, e.g. % butane, pentane, heptane or natural or artificial mixtures containing these hydrocarbons or their homologues, aliphatic ethers, e.g. diethyl, diisopropyl or dibutyl ethers, or (except in the polymerization of vinyl esters of fatty acids) aliphatic alcohols, e.g. ethyl or methyl alcohol.  As catalysts may be employed organic peroxides, e.g. dibenzoyl, acetyl benzoyl or diacetyl peroxides, or combinations thereof with promoting agents, e.g. organic acids or anhydrides.  In examples: (1) a mixture of vinyl chloride and acetate is heated to 30 DEG  C. in butane in the presence of acetyl benzoyl peroxide, the liquid being circulated through one of two filter presses piped in parallel and used alternately, and additional starting materials being introduced at frequent intervals; (2) vinyl chloride alone is polymerized as in (1); alternatively the butane is dispensed with, the monomeric vinyl chloride itself serving as precipitant.  Specification 406,338 is referred to.  The Specification as open to inspection under Sect. 91 comprises in general the carrying out of the process in such a manner as to maintain the concentration of monomeric vinyl compounds substantially constant through the polymerization reaction.  An alternative method of achieving this, without withdrawing the polymers, consists in adding to the reaction system fresh quantities of monomers to replace those converted to polymers. This subject-matter does not appear in the Specification as accepted.
Patent GB-704178-A (GB)
Title: Improvements relating to frequency discriminator circuits for frequency modulated waves
IPC: H03D3/08
Filed: 1951-06-14
Abstract: 704,178. Frequency modulation. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 14, 1951 [June 16, 1950], No. 14134/51. Class 40 (5) A frequency discriminator comprises coupled primary and secondary circuits tuned to the central frequency of the frequency modulation band with the primary and secondary inductances separately screened magnetically and the coupling provided by electrical connections introducing a portion of the primary circuit into the secondary circuit so as to be common to both circuits, at a mid-point of either inductance or capacity branch of the secondary circuit, and the two electrical connections also applying unequal alternating potentials to the secondary circuit. As shown a capacitor C3 of the primary circuit is introduced into the capacity arm of the secondary circuit between the equal capacitors C2". The demodulated output from the diodes D1, D2 has extreme values between frequencies whose spacing is dependent on the smallness of the capacitor C3 and between these frequencies the demodulation is linear. Alternatively a fraction of the primary inductance L1 may be connected through D.C. blocking capacitors to points of the secondary inductance L2 equidistant from a balanced mid-point.
Patent GB-514652-A (GB)
Title: Improvements in or relating to devices for shaking or vibrating sifters, screens, feed devices and the like
IPC: B07B1/42
Filed: 1938-05-12
Abstract: 514,652. Shaker mechanism; hopper discharge. WALLACE, R., and HANN, S. 'May 12, 1938, No. 14199. [Class 78 (i)] [Also in Groups II and XXIV] A device for imparting vibrations of small amplitude and high frequency to sieves, feed troughs &c., consists of a casing A which can be applied to the apparatus and a wheel F centrally mounted on a shaft G which is supported in ball-bearings C and which is adapted to carry a weight F<2> at or near its periphery so as to put it out of balance. In the arrangement shown the weight F<2> consists of two parts secured in annular grooves in the wheel by bolts or rivets F', The wheel may be perforated at F<4> diametrically opposite the weights. The ball bearings are carried in housings B bearing on shoulders D in the casing and secured by end plates H provided with lugs K by which the device can be bolted to the sieve frame or other apparatus. A modification is described in which the device is housed in a tubular member connecting the side plates of a sieve &c. frame.
Patent GB-927729-A (GB)
Title: Improvements in and relating to arc working
IPC: B23K9/16
Filed: 1961-04-20
Abstract: 927,729. Arc blow-torches. UNION CARBIDE CORPORATION. April 20, 1961 [April 25, 1960], No. 14229/61. Class 39 (3). [Also in Group XXII] In gas shielded arc working, e.g. welding, the entire shielding gas stream is passed through and issues from a permeable barrier having closely spaced passages or pores of a mean diameter of 0.02 inch or less. The permeable barriers may be of fibres, powder or granules or consist of one or more layers of wire mesh, e.g., copper wire cloth. The barriers may be of porous plastic, packed felt fibre, fritted glass or metal ceramics. In a non-consumable electrode arc welding torch, the barrier 22, Fig. 1a, is sealed in the entrance of the gas nozzle 16.  The electrode is a close fit in its holder so that all the shielding gas passes through the barrier 22. In a modification the barrier 56, Fig. 8a, is positioned at the exit of a short gas nozzle 25. As shown in Fig. 8b, the barrier 58 is curved and produces a gas shield covering a large area of a workpiece. The barriers 48, 52, Figs. 7b, 7c, may be of varying thickness so that the gas flow issuing from the peripheral portions of the barriers is lower than that from the central portions as is indicated by the velocity vectors 51, 54.
Patent GB-1310605-A (GB)
Title: Apparatus for loading material to be treated especially in malt  kilns
IPC: C12C1/15
Filed: 1970-03-24
Abstract: 1310605 Transferring material MORDEN ET CIE 24 March 1970 [25 March 1969] 14270/70 Heading B8E [Also in Division F4] Apparatus for transferring a material to be treated, such as green malt, from a bed 1 to a kiln 3 and for spreading the malt over the perforated surface 4 of the kiln 3 comprises a rake device 9, 10 which loads the malt into a hopper 7 which is elevated by an elevator connecting hopper 7 with an unloading hopper 8 from which the malt is transferred into a hopper 17 which feeds distributers 12, 13, 14 located above the kiln 3. In the operation of the apparatus the device 9, 10 performs reciprocating movement between the right-hand end of the bed 1 and a point very near to a contact A thus moving all the malt in that part of the bed 1 into hopper 7 from which it is transported via elevator 6 and hopper 17 into the distributer 12 whose shutter 16 is open thus permitting the malt to fall through its two distributor arms 15 to form two heaps 30 on the surface 4. When the device 9, 10 passes in front of the contact A a corresponding control device 18 effects the closing of the shutter 16 of distributer 12 and the opening of the shutter 16 of the next distributer 13, the device 9, 10 then similarly clearing the malt in that part of the bed 1 up to the location of contact B into the distributer 13 which foams two further heaps, and on passing the contact B, finally clearing the malt between contact B and the left-hand end of bed 1 into distributer 14, thus foaming a total of six heaps 30. The heaps are shaken to form a layer of uniform depth by means of rotating helices (22) carried by a beam (31) moving on rollers (20), Fig. 2 (not shown). In an alternative embodiment (not shown), the malt which is supplied to the hopper 17 is caused to descend successively through the distributers 12, 13, 14 whose shutters 16 are actuated successively at suitable intervals by a control device or timer.
Patent GB-1122884-A (GB)
Title: Process for removing copper compounds from processing equipment
IPC: C23G1/20
Filed: 1967-03-29
Abstract: Copper deposits are cleaned from e.g. steel melt spinning apparatus with a hot aqueous solution (pH 6 to 11) of an aliphatic di - or triamine an organic acid e.g. acetic.  The amine may be dior triaminopropane or diaminodiethyl sulphide. The solution may also contain sodium nitrite.
Patent GB-421241-A (GB)
Title: Bone audition apparatus
IPC: H04R11/00
Filed: 1934-05-11
Abstract: 421,241. Instruments for deaf persons. DICTOGRAPH PRODUCTS CO., Inc., 95, 149th Street, Jamaica, Long Island, New York, U.S.A.-(Assignees of Koch H. ; Jamaica, Long Island, New York, U.S.A.) May 11, 1934, No. 14339. Convention date, June 29, 1933. [Class 40 (iv)] [See also Group XXXVI] Portable audition apparatus adapted to be carried by persons of defective hearing comprises a casing 10 having a cover 11 to which is rigidly secured a reed 25 having at one end a turned-up portion 26 to the outer end of which is secured a massive permanent magnet 27. The magnet carries a polepiece 30 surrounded by a speech coil 31 and adapted to form a narrow air gap with the other end of reed 25. The mass of the magnet compared with that of the reed is such that the magnet has a high relative inertia so that in operation the magnet, although supported wholly by the reed, remains stationary and the reed vibrates relatively thereto. Moreover, with such an arrangement, the air gap between the magnet and reed remains constant independently of the pressure with which the cover 11 is applied to the bone structure of the user. The coil 31 is connected by leads 32 to terminals 14 carried at one end of plates 13 inlaid flush with the inner surface of cover 11, the outer ends of the plates being provided with contacts 15. Each contact 15 is adapted to engage a spring 16 located in a recess in the casing 10 and engaging at its opposite end a plug 17 having a pin 18 which projects into a passageway 19 in the casing into which the terminals on the external leads are adapted to be inserted. Fig. 6 shows a modification employing a flat reed 25<11> to which is secured an L-shaped magnet 27<11> which carries a terminal block 33 of insulating material. Modifications are also described (Figs. 5 and 7, not shown), in which the magnet is curved instead of angular and in which the speech coil is carried on the centre portion of the magnet. For holding the device in position against the bone structure, a yoke member 36, Fig. 1, is provided which is pivotally secured to and spans the casing 10 and is provided either with a handle or a head band.
Patent GB-801749-A (GB)
Title: Improvements in or relating to couplings
IPC: A01D67/00
Filed: 1956-05-09
Abstract: 801,749. Steering trailers. MORTL, F. May 9, 1956 [May 10, 1955], No. 14373/56. Class 79(5) [Also in Group XXXII] A tractor 6 has a transverse bar for connection of the towbar 3 of a centrallypivoted front axle trailer 1 and the tow rods 4 of a second trailer provided with steerable front wheels 19 under the control of a steering lever 22, rod 21 and radius arm 20.
Patent GB-158177-A (GB)
Title: A new or improved fabric
IPC: D04C1/00
Filed: 1920-05-27
Abstract: 158,177. Gillespie, T. H. May 27, 1920. Lacc.-A fabric is made on a twist lace machine by the employment of a fully threaded warp bar, each thread a of which twists always with the same bobbin thread b at each motion, and of two half-threaded warp bars, or a multiple of two, which are shogged simultaneously in opposite directions over the same number of gaits, each half-bar moving first in one direction and then in the other so that the threads, c, d carried thereby are laid within the shed formed by the threads a of the fully threaded warp bar and the bobbin threads b.
Patent GB-931812-A (GB)
Title: Improvements in or relating to synchronising apparatus
IPC: G08G1/097
Filed: 1960-04-25
Abstract: 931,812. Road signals for controlling traffic. SIEMENS & HALSKE A.G. April 25, 1960 [April 24, 1959], No. 14445/60. Class 118. In a traffic light signalling system in which each control unit, such as Stg1, includes a uniselector Zs driven step-by-step by pulses from a generator T, the uniselectors at a plurality of control units are synchronized by arranging that in each unit, stepping of the uniselector to a predetermined position brings up a relay S1 which cuts the pulse drive and short-circuits a relay Z1 in a circuit common to all the units. When all the S1 relays have operated and all the Z1 relays are shortcircuited, the Y1 relays at all the units operate and reconnect the pulse drive to all the uniselectors, which then restart in synchronism.