baber/WOPTO huggingface dataset:
Patent GB-845995-A (GB)
Title: Improvements in control systems for electric motors
Inventor: CHOUDHURY SHAFI-UDDIN AHMED
IPC: H02K17/30
Filed: 1956-10-24
Abstract: 845,995. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO. Ltd. Nov. 1, 1957 [Oct. 24, 1956], No. 32435/56. Class 38 (3). An induction motor is operated at creep speed by energizing one of its windings with A.C., while the other winding is simultaneously supplied with D.C. In one arrangement, two of the slip-rings are connected through bridge rectifier 4 and transformer 5 to two phases of the A.C. supply, whilst the terminal F is connected to either terminal D or E. Thus a D.C. component is supplied to two phases of the rotor windings and these are short-circuited through the rectifier during alternate half-cycles of the supply. Variation of the creeping speed is effected by adjustable resistors 6 in series with the stator winding, and the peak voltage across the rectifier is reduced by resistor 7. The starting torque is reduced by means of resistor 8, whilst, to increase the starting torque, resistors may be connected directly between the slip-rings. In another arrangement, a rectifier 9 is connected between two of the slip-rings, and resistors 10, 11 are provided. Furthermore, a resistor may be connected in series with the rectifier between two of the phase terminals in order to reduce the torque.
Patent GB-365666-A (GB)
Title: Improvements in and relating to the control of warp tension in looms for weaving
IPC: D03D49/06
Filed: 1930-10-29
Abstract: 365,666. Letting-off warps in looms. COTTON, R., 3, Lyndale Avenue, Hasling- den, Lancashire. Oct. 29, 1930, No. 32461. Addition to 347,767. [Class 142 (ii).] The tension of the spring M which acts through bell cranks L, L<1> and the chains &c. l<2> to brake the warp beam K is reduced as the size of the beam decreases by means of a screw n, ratchet wheel and nut n<1>, and a pawl R oscillated by a rod R<1> from the spring held back-rest e which is positively held during the beat-up by a dagger on the lay.
Patent GB-871339-A (GB)
Title: New dithiophosphoric acid ester and pesticidal preparations containing the ester
Inventor: SCHERER OTTO
IPC: F16H13/06
Filed: 1957-10-17
Abstract: The invention comprises O,O1-diethyl-dithiophosphoric acid S-(N : N-dimethyl-thiocarbamyl-mercaptomethyl) ester of the formula: <FORM:0871339/IV (b)/1> The ester may be obtained by reacting sodium N : N-dimethyl-dithiocarbamate with O,O1-diethyl dithiophosphoric acid S-(chloromethyl) ester in an inert solvent such as acetone and at slightly elevated temperature or by reacting N : N-dimethyl thiocarbamic acid chloride with the sodium compound of O,O1-diethyl dithiophosphoric acid S-(mercaptomethyl) ester.  The product has pesticidal properties (see Group VI).ALSO:A pesticidal composition comprises as active ingredient the compound of the formula <FORM:0871339/VI/1> (see Group IV (b)) in admixture with a liquid or solid diluent. The composition may be in the form of a spray liquor, dusting powder, or a solution in an organic solvent and may be used in admixture with another insecticide, acaricide, ovicide, fungicide or synergist and a wetting or emulsifying agent may be present. Specified solvents are denatured ethyl alcohol (in conjunction with a wetting agent and epichlorhydrin) and acetone.
Patent GB-418938-A (GB)
Title: An improved wood-wool pad, more particularly for use in the treatment of floors
IPC: A47L13/16
Filed: 1933-11-21
Abstract: 418,938. Floor - cleaning pads. MULLER, J., 2A, L÷hristrasse, Constance, Germany. Nov. 21, 1933, No. 32515. Drawings to Specification. [Classes 19 and 145 (ii).] A method of preparing wood wool for use as a polishing and like agent for floors is characterized in that a suitable quantity of wood wool is taken, pulled apart to substantially the size of the final pad and pressed in a press until a flat plate-like shape is obtained.
Patent GB-805341-A (GB)
Title: Improvements relating to driving means for textile ring spinning and the like frames
Inventor: WINTERBOTTOM JAMES GREENALL
IPC: F16H37/00
Filed: 1954-11-10
Abstract: 805,341. Driving means for textile ring spinning frames. ENGLISH ELECTRIC CO.. Ltd. Nov. 4, 1955 [Nov. 10, 1954]. No, 32550/54 Class 120(2) Driving means for a textile ring spinning or the like frame. of the kind including two electric driving motors arranged to provide different speeds of operation according to which of the two motors is energized. is arranged such that the motor 10 providing the higher operating speed is coupled through separate power transmission means to the spinning frame shaft 17 and to the motor 11 providing the lower operating speed respectively. The two motors are mounted side by side on slide rails 12 on an extension 13 of the spinning frame base plate.
Patent GB-1444394-A (GB)
Title: Method of fusing together particulate thermoplastic material on a substrate
IPC: B32B37/24
Filed: 1973-07-09
Abstract: 1444394 Coated products VITEK RESEARCH CORP 9 July 1973 32557/73 Heading B2E [Also in Division B5] Particulate thermoplastic material defining a layer on one surface of a substrate, e.g. paper, adversely affected by heat, is fused together without adversely affecting the layer of substrate by positioning an air-pervious heat-insulating pad adjacent the surface of the substrate opposite the surface thereof upon which the layer of particulate thermoplastic material is disposed, establishing a partial vacuum, through the air-pervious insulating pad for establishing intimate and uniform contact between the heat-insulating pad and the adjacent surface of the substrate and applying electromagnetic radiation in the infrared range form only the side of the substrate carrying the layer of particulate, thermoplastic material to heat and fuse together the particulate material defining the layer. Substrate 20, which may be a patterned release paper, may be fed over a guide roll 24 into engagement with endless conveyor belt 12 made from a thermally conductive material e.g. stainless steel, which supports the heat-insulating pad, suitably made from asbestos, cotton wool, hair felt or nylon. Vacuum is applied through vacuum parts disposed adjacent each edge of the belt and through the heat-insulating pad, by vacuum shoes 28, to retain the substrate in contact with the pad. The edges of the substrate may be protected from damage during the fusing by covering them with insulating sealing means, e.g. silicone rubber strips, which may be secured adjacent the margins of the belt extending inwardly toward each other so that they may be peeled back and having inner surfaces normally disposed in overlying relationship with the side regions of the outer exposed surface of the insulating pad. The belt may be cooled by air or the application thereto of water at station 33. The particulate material which may 'be of polyethylene, polypropylene polyvinylchloride, polyurethane, polystyrene, methylmethacrylate homo- or copolymers, cellulose acetate, butyrate or propionate or nylon, may be applied at station 30 by electrostatic spraying or fluid bed techniques and heated at station 32 by means of radiant heaters 44 mounted on member 46 pivotally adjustable about axle 48. The fused self-supporting sheet 34 may be seperated from substrate 20 and wound up separately, the substrate being suitable for reuse.
Patent GB-641990-A (GB)
Title: Improvements in or relating to resilient bearings or the like
IPC: B60G11/12
Filed: 1947-12-11
Abstract: 641,990. Resilient mountings. WRIGHT, H. CLAYTON-. Dec. 11, 1947, No. 32640. [Class 108 (iii)] .  In a resilient bearing of the type comprising inner and outer members between which a sleeve of rubber or the like is inserted and is compressed by endwise pressure to grip the inner and outer members and to raise a collar on each end of the sleeve between the end of the outer member and a face of a clamping member transmitting the endwise pressure, a recess is provided in the faces of the clamping members adapted to bear on the shaped ends of the rubber sleeve and from which collars are raised to lie between the ends of the outer member and the faces of the clamping members outside the recesses. In the application to a shackle for a vehicle spring, the outer end of each half of a rubber sleeve 3 disposed between inner and outer members 5 and 6 respectively is shaped to a corresponding recess 1 on the clamping face of each shackle link 2. Axial compression of the sleeve. raises, at each end of the sleeve, a collar 4 which, due to the shape of the end of the sleeve and the recess 1, is not subjected directly to the compressing force. Specification 575,020 is referred to. Reference has been directed by the Comptroller to Specification 648,547.
Patent GB-486096-A (GB)
Title: Improvements in and relating to web-tension controlling devices for rotary printing machines
IPC: B65H23/08
Filed: 1936-11-30
Abstract: 486,096. Feeding webs. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.- GES. Nov. 30, 1936, No. 32822. Convention date, Dec. 19, 1935. [Class 100 (i)] [Also in Group XXXV] In a web supply apparatus for a rotary printing machine in which the movements of a floating roller resting on the web operate a control device for a speed regulating mechanism for an endless band driving the web supply roll to maintain a constant web tension, the speed regulating mechanism is arranged to restore the control device to normal position, and thus arrest the action of the speed regulating mechanism, independently of the floating roller. The web roll 1 is driven by a band 21 which is driven from the press through a variable speed mechanism 23 adjustable by a reversible electric motor 18 which also drives, through worm gear 19, a disc 11 to which is secured one end of a band 10, in a loop of which a roller 14 on a contact lever 15 rests. A projection 22 on the band 10 engages a projection on a weight 9 carried by a band 8 secured to a disc 7 moving with an arm 6 carrying the floating roller 4 resting on the web 2. Movements of the roller 4 due to change of tension, cause or allow a movement of the arm 15 to close one or other of the contacts 16, 17 to start the motor 18 in the direction to restore the web tension to normal by adjustment of the mechanism 23. The motor also drives, through the gear 19, the disc 11 to restore the arm 15 rapidly to normal position to stop the motor 18 independently of the return movement of the roller 4.
Patent GB-1217705-A (GB)
Title: An apparatus for deep cooling of a ammonium synthesis gas mixture
Inventor: SEBOR VACLAV
IPC: B01D5/00
Filed: 1968-07-10
Abstract: 1,217,705. Cold separation of gas mixtures; surface condensers. CHEPOS, ZAVODY CHEMICKEHO A POTRAVINARSKEHO STROJIRENSTVI. 10 July, 1968, No. 32833/68. Headings F4P and F4S. Cooling of a converted ammonia synthesis gas mixture so as to condense the ammonia is effected by passing the gas mixture through an inlet 32, Fig. lb, leading to a chamber 18 formed in the end plate 26 of a nest of U-tubes 23 within a casing 15 and which tubes exhaust into a chamber 19 formed between the end plate 26 and the end plate 22 of a second nest of U- tubes 8 within a casing 4 cooled by a boiling refrigerant, passing the so-cooled and partially condensed mixture through an outlet chamber 20 and a duct 21 to a liquid ammonia separator (not shown), withdrawing cold uncondensed nitrogen and hydrogen therefrom and passing through an inlet 27 to the shell space of casing 15 to effect preliminary cooling of the feed gas mixture traversing the nest of U-tubes 23 and thereafter discharging the nitrogen and hydrogen through an outlet 33. The shell space of casing 15 contains baffle plates 24, 25. In a modification the apparatus is mounted vertically, in a further modification the casing 15 of the preliminary cooler 2, Fig. 3, is formed with feed gas mixture inlet and outlet chamber 30, 31 bounded by the end plates 26 of two nests of U-tubes in parallel and by a horizontal wall 29 therebetween. The casing 4 is similarly constructed with two nests of U-tubes in parallel which discharge through an outlet 7 into a liquid ammonia separator 34 from which the cold gaseous hydrogen and nitrogen is withdrawn and passed through lines 35 to the shell spaces of casing 15. Refrigerant vapour generated in each shell space of casing 4 is exhausted through a liquid separator 10 and an outlet 28.
Patent GB-1275736-A (GB)
Title: Improvements in loose covers for chairs
Inventor: BATES WILLIAM
IPC: A47C31/11
Filed: 1968-07-10
Abstract: 1275736 Chair covers MEDLOCK MFG CO Ltd 19 June 1969 [10 July 1968] 32859/68 Heading A4M. A stretch cover for a chair has a continuous, uncut lower edge to which is attached, e.g. by stitching 7, one or more elastic strips 5 and is provided with loops 9 for engagement with the legs of a chair to which the cover is to be attached, each loop being attached to the strip 5 or an associated one of the strips 5 but being otherwise unattached to to the fabric of the cover. The loops 9 may be of elastic material and may be formed in one piece with the strip or strips 5. One or two loops 9 may be provided at each leg position. The strip 5 may be partly or wholly received in a folded edge 6 of the cover. Further loops 10 to receive a drawcord 11 may be provided on the cover edge intermediate the leg loops 9.
Patent GB-801369-A (GB)
Title: Improvements in or relating to telephone systems having coin boxes
IPC: H04M17/02
Filed: 1955-11-17
Abstract: 801,369. Coin-freed telephone apparatus. TELEFONAKTIEBOLAGET L. M..ERICSSON. Nov. 17, 1955 [Nov. 17, 1954; March 4, 1955], No. 33000/55. Class 27 [Also in Group XXXIX] In an automatic telephone system (see Group XXXIX) prepayment for a call is made using coin boxes which can receive two or three different kinds of coin and signal the denomination of the coin or coins deposited to an exchange. In Fig. 1 two sepa.rat.e coin shoots EA and EB receive coins A and B of different denominations and while a call is being set up from subscriber's apparatus T a coin A or B, or both, is held in suspense by pawls PA1, PB1. When the called subscriber replies current is sent from the exchange over the line ab to energize a magnet M to withdraw pawls PA1, PB1, and insert pawls PA2, PB2, which catch falling coins and hold them in a position to operate contacts ka, kb. Contacts ka, kb register the coin denomination at the exchange after which M is de-energized, pawls PA2, PB2 withdraw, and the coin or coins pass to a collecting box. In Fig. 2 a single shoot is shown the end of which is tapered so that each set of contacts ka, kb, or kc are operated by a coin of corresponding diameter which rests against a stop As, Bs, or Cs. The bottom edge of the shoot is closed by a pivoted arm P2 under control of a magnet M which, by means of a link h, also withdraws a pawl P1 holding a coin in suspence. When plate P2 closes the shoot it also operates contacts m1, m2 to disconnect subscriber's apparatus T from the fine ab. When plate P2 falls back it drops the coin into a box L.
Patent GB-1081586-A (GB)
Title: Plastics dispensing container
IPC: B65D35/22
Filed: 1965-08-03
Abstract: 1,081,586. Dispensing container. C. F. SPIESS & SOHN. Aug. 3, 1965 [Sept. 8, 1964; Feb. 24, 1965], No. 33085/65. Heading B8D. A plastics dispensing container, which may be of the squeeze-tube type, comprises a plastics tube having its end sealed either with a welding seam 1 or by welding on a plastics nipple 4, and has at least one constricted portion 5 separating the tube into compartments 2 and 3. The constricted portion 5 may be temporarily sealed by means of a tie or clamp, or by providing a weak welded seam across it such that the tube walls are welded together without molecular fusion occurring, for example by pressing an electrode against the plastics tube and applying a low-watt electric current for a short time. The temporary seal may be broken when the contents of the various compartments are required to be mixed. The material of the tube may be laminated. The constricted portion may be provided by cutting one or more sections out of the opposite walls of the tube away from the sides and welding around the edges of the resulting holes (e.g. Fig. 2, not shown). Both ends of the tube may be sealed by welding seams (39), Fig. 7 (not shown), or both ends may carry nozzles (24), Fig. 5 (not shown).
Patent GB-480133-A (GB)
Title: Improvements in and relating to multi-core high-frequency electric cables
IPC: H01P3/02
Filed: 1936-12-03
Abstract: 480,133. Cables. FELTEN & GUILLEAUME CARLSWERK AKT.-GES. Dec. 3, 1936, No. 33214. Convention date, Dec. 3, 1935. Addition to 475,374. [Class 36] In a multiconductor airspace insulated cable comprising conductors 1 carried within helical threads 2 of polystyrol or other rigid insulating material the distance between the conductors is increased by arranging spacers, such as polystyrol helices 3 between the helical threads 2. A helically applied polystyrol thread 4 maintains the conductors in position. Adjacent helices are preferably wound in opposite directions or with different pitches so that they do not fall within one another and, for the same purpose, the helices 3 may be individually or collectively surrounded by a wrapping of thin tape 5, preferably of polystyrol. An outer sheath 6 of copper completes the cable.
Patent GB-1272676-A (GB)
Title: Image transfer apparatus
Inventor: MCNAIR DAVID DUFOUR
IPC: G03G15/01
Filed: 1969-07-01
Abstract: 1,272,676. Transferring electrostatic images. EASTMAN KODAK CO. July 1, 1969 [July 1, 1968], No.33229/69. Heading G2H. [Also in Division B6] An apparatus for transferring a developed electrostatic image from one or more images bearing members 22 on to a receiver 21 hasatransfer roller 10 for supporting the receiver. The transfer roller 10 has teeth 24 and (25) Fig. 4 (not shown) which engage registration notches 26 and (27) Fig. 4 (not shown). The sides of the notches engage the teeth to produce correct registration of the receiver 21 and image bearing members 22. An electromagnet 32 is energized, upon closure of a micro-switch 33, to hold the adjacent member 22 in fixed position during image transfer. The transfer step is repeated for each member 22 to produce a composite image, e.g., a colour image, during movement of a belt 12 carrying the roller 10.
Patent GB-901884-A (GB)
Title: Improvements in or relating to thermocouple cables
Inventor: SORSKY GIDEON
IPC: H01B7/16
Filed: 1959-10-02
Abstract: 901,884. Thermo-electric devices. BRITISH INSULATED CALLENDER'S CABLES Ltd. Dec. 30, 1960 [Oct. 2, 1959], No. 33547/59. Class 37. [Also in Groups XXIV and XL (a)] A cable 1 which comprises at least one pair of dissimilar conductors connected at their ends to form a thermocouple and which may be attached to a fuel can in a nuclear reactor has part of its length held in a loop 2 by a breaking-piece such as a thin wire 3 so that when desired (e.g. when reloading fuel) the cable 1 may be pulled to break the wire 3, such breakage causing the loop 2 to kink or to be sharply bent so that the predetermined part of the cable 1 breaks to disconnect the thermocouple. As shown, the wire 3 is welded to ferrules 4 crimped on the cable 1. In a modification the wire 3 is replaced by a shear pin or pins connecting ferrules clamped to the cable at the cross-over of the loop. In a further modification a loop of less than a full turn is threaded through sharp-edged holes in a steel plate, said loop being held by a wire or other breaking-piece. The cable 1 may comprise a single conductor in a sheath of dissimilar metal but, as shown, comprises a stainless steel sheath enclosing two conductors, one of nickel chrome alloy and one of nickel aluminium alloy. The conductors are insulated by magnesium oxide or other compacted mineral powder. A fuel can be suspended in a reactor channel by the cable 1 itself or by auxiliary means. In the latter case the breaking- piece may be designed to be broken by the weight of the spent can when the auxiliary means is released.
Patent GB-1124908-A (GB)
Title: Slot flooring for stables
IPC: A01K1/015
Filed: 1967-07-21
Abstract: 1,124,908. Stable flooring. G. H. PAULSSON. 21 July, 1967 [22 July, 1966], No. 33657/67. Heading E1W. In slot flooring for stables comprising spaced parallel concrete or the like beams 1, the width of the spaces therebetween increasing downward in a lower portion thereof, the beams 1 are T shaped so that each space has an upper and narrower portion and a lower and wider portion which is vertically longer than the upper portion, the side walls 2, 3 of both portions being connected by intermediate surfaces 4 forming an acute angle at 5 with the upper walls 2.
Patent GB-1006498-A (GB)
Title: Improvements in or relating to circuit connector assemblies
Inventor: WALKER LOUIS EDWARD QUINTRELL
IPC: H05K3/24
Filed: 1963-08-26
Abstract: 1,006,498. Printed circuits. MARCONI CO. Ltd. June 10, 1964 [Aug. 26, 1968], No. 33661/63. Heading H1R A multilayer printed circuit, Fig. 1, having wiring 5, 6, 7 at different levels interconnected where required by interlayer terminals 8, is built up layer by layer, using insulating boards 1 . . . 4 of epoxy-glass with preformed holes to accommodate the terminals 8. In Fig. 3, board 1 is placed on a film of conductive paste on a glass plate 12, and copper 13 is electro-deposited in the holes in the board. Wiring pattern 5 is silk-screened on to board 1 and built up by electro-deposition of copper; then an uncured epoxy resin 15 is applied to board 1 to a level flush with wiring 5, board 2 is laid in place with its holes 16 in register with those of board 1 and resin 15 is cured. Holes 16 are filled with copper by electro-deposition and wiring 6 formed in the same way as wiring 5. These steps are repeated until the multilayer circuit is completed, when the assembly is stripped from plate 12. Terminals 8, Fig. 1, may be drilled to provide axial holes to accommodate component leads, which are soldered to the terminals at the face of the assembly remote from the component.
Patent GB-1519466-A (GB)
Title: Photodiode detector
IPC: H01L27/146
Filed: 1975-08-14
Abstract: 1519466 Photodetector NORTHERN TELECOM Ltd 14 Aug 1975 [17 Sept 1974] 33937/75 Heading H1K Selective optical frequency response is achieved in a photodiode detector by guiding incident radiation X along an N (or P)-type waveguide layer 22, at the upper surface of which are formed the P-N junctions of a number of similar photodiode detector sections 30, 31, 32, 33, 34. Each photodiode detector section comprises a heterostructure of N (or P)-type layers 21, 22 and P (or N)-type layers 23, 24 epitaxially grown on an N (or P)-type substrate 20. The detector sections are isolated either by etching grooves 48 after forming metal contacts 25, 26, or by doping or proton bombarding the material between the photodetector sections. Application of increasingly negative reverse bias voltages to detector sections 31 to 34 results in the photoresponse characteristics shown in curves 41a to 38a of Fig. 3, with detector section 31 responding to higher energy photons than detector section 34. Equality of bandwidth for each detector may be achieved either by incrementing the reverse bias by increasing amounts for the higher numbered sections or by increasing the lengths of successive sections.