baber/WOPTO huggingface dataset:
Patent GB-786856-A (GB)
Title: Improvements in or relating to thermally-operated electric switches
Inventor: BROOKER VICTOR DENNIS
IPC: H01H37/66
Filed: 1954-08-17
Abstract: 786,856. Thermal switches; thermal and partly magnetic switches. DAVALL & SONS, Ltd., S. Nov. 17, 1955 [Aug. 17, 1954], No. 23965/54. Class 38 (5). A disc 13 clamped at its edge between housing parts 11, 15 is formed with a number of apertures 21 and slots 23. The centre is attached to a post 27 secured to a lever 18 pivoted at 28 and carrying contacts 19, 20 and an armature 40. The disc is initially bowed upwardly so that when heated by a coil 25 its centre moves upwards. The contacts are separated with a snap action when the armature is brought sufficiently close to a permanent magnet 41. The contacts re-open with a snap when the disc 13 re-cools. The magnet is carried by a spring-blade 43 which is adjustable by a cam 47. Upward movement of the disc may close the contacts. The disc may be bi-metallic. According to the Provisional Specification, the disc carries a contact co-operating with an adjustable " fixed " contact, and the coil 25 may be adjustable toward or away from the disc.
Patent GB-1460591-A (GB)
Title: Friction plates
IPC: F16D69/00
Filed: 1973-05-19
Abstract: 1460591 Sintered alloy friction pads GIRLING Ltd 9 May 1974 [19 May 1973]  23965/73 Headings C7A and C7D [Also in Division F2]  A friction plate for a disc brake comprises a metal (mild steel) disc 11 and a plurality of friction pads 13 carried by the disc on both major surfaces, the friction pads 13 on each surface being arranged in first and second circular rows 14, 15 as shown, see Division F2. To produce the friction plate a powdered friction material having the following composition by weight is utilized, viz 60% copper; 12% tin; 2% lead; 9% zinc; 4% carbon and 13% silica. For each pad, a portion of mixture is compressed at 17000 psi to form a compact which is then secured to the disc by a resistance heating operation which also sinters the compacts. The disc 11 is plated prior to the heating operation, with a brazing material and (a) pair(s) of molybdenum-tipped electrodes are used to effect the resistance heating to sinter and bond the compacts.
Patent GB-585783-A (GB)
Title: Improvements in or relating to electric coils and the like
IPC: H01F5/04
Filed: 1944-12-01
Abstract: 585,783. Direct connections between conductors. STANDARD TELEPHONES & CABLES, Ltd., and GILLIVER, G. Dec. 1, 1944, No. 24043. Addition to 558,472. [Class 38 (i)] [Also in Group XXII] The end winding or lead-out wire or tape of an electrical coil such as a telephone relay, transformer or receiver, is joined direct to the body of a terminal tag by fuse welding as described in the parent Specification, i.e., by placing the wire and tag in contact and passing a current through the wire and tag of sufficient intensity to cause fusion and so interrupt the circuit, whereby a joint in the form of a globule is formed at the point of contact and simultaneously with the interruption of the circuit caused by the fusion. The ends of the copper winding wire from the spool 1 or lead-out wires pass out through tubular copper tags 5 secured in the spool checks 2, and after flattening the ends of the tags, current is passed through the wire and tag to cause fusion thereof with the formation of a globule 7 and interruption of the current. The globules which form the joints also seal the tubes against entry of moisture. The wire termination 4 may be similarly united to the rim of an eyelet type of tag 8, or to the outer end of a pin tag 9, or the inner end of a pin tag 10. Specifications 560,500, 564,617, [both in Group XXII], 566,778, [Group XXXVII], 570,681, [Group XXII], and 585,401, [Group XXXVII], are referred to.
Patent GB-1512726-A (GB)
Title: Circuit arrangement for producing a pulse signal the mark-to-space ratio of which is a measure of the value of an input voltage applied in operation between first and second input terminals of said arrangement
IPC: H03M1/00
Filed: 1975-06-04
Abstract: 1512726 Analog-mark/space ratio converters PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 4 June 1975 [7 June 1974] 24106/75 Heading H3H An analog-mark/space ratio converter comprises a bridge of four transistors T1 ... T4, a capacitor C, a resistor R, a current-controlling transistor T5, at least one current reference 10 and a comparator K, differential amplifier V and clocked flip-flop F, connected substantially as shown. The output of the flip-flop F may be supplied to the bases of transistors T1, T4 so that diagonally opposite pairs are alternately conductive. The input voltage in series with a fixed bias may be connected between terminals 3 and 9 whereby the capacitor C will alternately charge and discharge at a rate which is a function of the input voltage between terminals 3 and 9, the duration of each ramp being determined by the comparator K. The input voltage or clock frequency may be modulated by noise so as to reduce the lower input threshold. In Fig. 5 (not shown) resistor R is connected between the emitters of T3 and T4, the emitter circuits having separate current references which may be switched for range changing.
Patent GB-518135-A (GB)
Title: Improvements in or relating to alternating current dynamo-electric machines
IPC: F24F13/16
Filed: 1938-08-16
Abstract: 518,135. Windings for dynamo electric machines. PATENTVERWERTUNGS - GES. HERMES. Aug. 16, 1938, No. 24173. Convention date, Aug. 18, 1937.' [Class 35] In a wave winding for an A.C. machine with two or more circuits in parallel and wherein the ratio of the number of bars per pole per phase to the number of parallel circuits is not a whole number, the external, connections to the various circuits are made at points close together on the circumference of the winding. In the form shown, the three phase winding has four parallel circuits and is in 312 slots and the terminals U-Z are all close together necessitating the use of non-uniform end connectors for certain bars such as the upper bar of slot 304.
Patent GB-1428526-A (GB)
Title: Bracket
IPC: A47B81/00
Filed: 1973-05-21
Abstract: 1428526 Display arrangements REPLICA MODELS (UK) Ltd 20 Aug 1974 [21 May 1973]  24208/73 Heading A4T A bracket for supporting a firearm for display comprises a back plate 10 for securing to a wall, e.g. by screws passing through holes 10a, a front plate 11, mounted e.g. by a bolt 12 for rotary adjustment on the plate 10, and two pegs 13 projecting from the plate 11 for receiving the trigger guard of the firearm between them.
Patent GB-1300346-A (GB)
Title: Improvements in axial piston pumps
IPC: F01B3/00
Filed: 1971-04-19
Abstract: 1300346 Reciprocating pumps SPERRY RAND CORP 19 April 1971 [2 April 1970] 24281/71 Heading F1A In an axial piston swash-plate pump comprising a rotary cylinder block engaging a stationary ported valve face with lands between the inlet and outlet ports, a port 54 in the swash-plate 38 vents the cylinders traversing the top dead centre land to the casing, via passages through the pistons 24 and shoes 30, the opening of port 54 being controlled by the position of shoes 30 on the swashplate, such that port 54 is open at small tilt angles and closed at large tilt angles Fig. 6 (not shown). The swash-plate 38 is located on its yoke by a dowel engaging one of two holes in the swash-plate positioned such that for either direction of rotation of the cylinder block port 54 is located a few degrees past top dead centre, Fig. 3 (not shown). The swash-plate may be automatically controlled in accordance with the delivery pressure.
Patent GB-480794-A (GB)
Title: Improvements in or relating to brassieres or bust supports
IPC: A41C3/00
Filed: 1936-09-07
Abstract: 480,794. Brassieres. LEFFMANN, S. Sept. 7, 1936, No. 24361. [Class 141.] A brassiere is provided with a pair of downwardly and outwardly splayed elastic strips a, the upper ends b of which are secured to the brassiere at or near the top of the front centre line or seam c thereof, and the lower ends e of which are secured to the brassiere at points approximately central of the lower edge f of the breast pockets, the intermediate parts of the strips a being free from attachment to the brassiere so as to be adapted to exert an outward pressure on the breasts tending to urge them apart. The ends of the strips a are preferably cut on the bias.
Patent GB-930140-A (GB)
Title: Improvements in endless belt conveyors
Inventor: GLEESON MURRAY A
IPC: B65G21/04
Filed: 1959-07-15
Abstract: 930,140. Endless belt conveyers. GOODMAN MANUFACTURING CO. July 15, 1959, No. 24398/59. Class 78 (1). The conveying run 17 of an endless belt conveyer is supported on flexible troughing roller assemblies 25 supported from a single cable 16 by means of hangers 20. The troughing roller assemblies 25 each comprise rollers 24, 26 mounted on axles 27 which are pivoted together by means of links 28 and which are pivoted to resilient hanger arms 19, 21 secured to the cable 16 by a pin 23. The return run 18 of the belt is supported by idler rollers 44, Fig. 5, mounted on rigid hangers 35 which are suspended from the cable 16 and braced by members 46, 47, secured at one end to the hanger and at the other end to clamps 36, 38 engaging the cable 16. In a second embodiment, Fig. 6 (not shown), additional cables 51, 52, passing between support towers, are secured to the cable 16 at the suspension points of the hangers for the return run rollers.
Patent GB-1200985-A (GB)
Title: Improvements in or relating to air filter/dryer units
Inventor: WALKER GORDON RICHARD
IPC: B01D46/24
Filed: 1968-05-22
Abstract: 1,200,985. Air filter-driers. PERRY COMBUSTION ACCESSORIES Ltd. 22 May, 1968, No.24438/68. Headings B1L and B1T. An air filter-drier, especially adapted for use in conjunction with the crankcase of an i.c. engine, comprises a filter 7, suitably of sintered bronze, and a drying element 10, suitably silica gel impregnated with a coloured indicator, concentrically seated on body 1 which is threaded at 2 for screwing into an engine, and covered by cowl 11. Air enters under the cowl, passes successively through filter 7, drying element 10 and gauge retaining cylinder 9 into space 19, and thence through radial bores 18 to axial bore 17. The state of the desiccant in element 10 may be observed through windows 20.
Patent GB-688363-A (GB)
Title: Apparatus for unwinding and straightening band material from a storage roll preparatory to working-up said material in a machine
IPC: B21D1/02
Filed: 1951-10-19
Abstract: 688,363. Unwinding. SCHULER AKT.- GES., L. Oct. 19, 1951 [Oct. 24, 1950], No. 24456/51. Class 83 (iv). Straightening.-In a transportable apparatus for unwinding and straightening strip, the reel 1 is rolled up a pivoted ramp 22 and positioned on support rolls 14. The strip is drawn through a roller straightener 5 by feed rolls 6 actuated by an electromotor 16 and controlled by a loop roll 24, and formed into a loop 17 curved in the unwinding direction and a reversely curved loop 19. The strip is fed to a press &c. 3 with a table 21 mating with a table 20 on which the strip is supported.
Patent GB-1340130-A (GB)
Title: Continuous process for producing dialkyl phosphorochlorido thionates
IPC: C07F9/20
Filed: 1971-04-19
Abstract: 1340130 Dialkylphosphorochloridothionates STAUFFER CHEMICAL CO 19 April 1971 [18 March 1970 19 Jan 1971] 24501/71 Heading C2P Dialkyl phosphorochloridothionates are produced continuously by (a) chlorinating a dialkyl phosphorodithioic acid with a chlorinating agent in a two-stage chlorination zone and (b) separating and recovering the product from the solution obtained. The chlorinating agent is preferably chlorine, preferably used in a mole ratio of chlorine to dialkyl phosphorodithioic acid of between 0À95 : 1À0 and 1À5 : 1À0. Step (b) may be carried out by passing the solution into a film evaporation zone at 90-120‹ C. and then condensing the vaporous fraction and recovering a portion thereof as product. Preferably the major portion, most preferably at least 80%, of the chlorine is admitted to the first chlorination stage.
Patent GB-461757-A (GB)
Title: Improvements in or relating to exhaust systems of two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1935-09-02
Abstract: 461,757. Exhaust systems. SCHNURLE, A. Sept. 2, 1935, No. 24514. Convention date, Aug. 31, 1934. [Class 7 (ii)] In a two-stroke engine cylinder, scavenging is improved, and exhaust ejected, by leading the exhaust gas tangentially into a drum 7 by a pipe 5, the cross-sectional area of which is half that of the cylinder ports 4 to which it is connected by a tapering passage. A high velocity whirl being thus produced in the drum which may be cylindrical or conical. The gas leaves the drum by a pipe 8, which may be tangential, and diverging, and is preferably arranged farther from the axis than the inlet, the drum being stepped for this purpose if necessary. Fig. 6 shows a conical drum having an annular outlet slit 14 which communicates with a passage 15 having continuously increasing cross-section ; the slit may be replaced by a guide ring containing nozzles. The cylinder charge may, or may not, be supplied by a pump. The Specification as open to inspection under Sect. 91 comprises also a multi-cylinder engine, the cylinders of which are connected to the drum by separate pipes which may be arranged to exert an ejector effect on one another. In a radial-cylinder engine the drum may be coaxial with the engine, the crank-shaft extending through the drum. Two exhaust ports may be provided in each cylinder wall, the first to be opened by the piston being connected tangentially to the drum by a pipe 5, the gas whirling in the drum exerting a suction on the other port which is connected axially thereto by a largebore pipe. The pipe 5 may be flattened at its entrance to the drum to produce a nozzle effect. In a multi-cylinder engine separate pipes 5 lead tangentially to the drum and are arranged to produce an ejector action on one another, whereas the subsequently-opened ports are connected to the drum by a common manifold. This subject-matter does not appear in the Specification as accepted.
Patent GB-356907-A (GB)
Title: Improvements in reels for cables and the like
IPC: B65H75/14
Filed: 1930-08-15
Abstract: 356,907. Cable reels. TWEEDLE, T. H. and LIVERPOOL ELECTRIC CABLE CO., Ltd., Linacre Lane, Bootle, Liverpool. Aug. 15, 1930, No. 24532. [Class 99 (ii).] A cable reel comprises two plywood discs 1 and a tubular core 3 of millboard which are held together by axially extending metal tubes 4, the latter contacting with the inner surface of the core 3 and passing through holes in the discs 1. The tubes 4 are retained in place by end washers 5 which are confined between a shoulder 7 on the tube and the end 6 of the latter which is flared or turned over outwardly in the form of a rim. The washers are of dished formation so that the operation of flaring the ends of the tubes 4 causes the peripheries thereof to be pressed firmly against the discs 1.
Patent GB-897566-A (GB)
Title: Improvements in or relating to the hydraulic mining of underground mineral deposits
Inventor: BAYS CARL ANDREW
IPC: E21B43/28
Filed: 1960-07-14
Abstract: 897,566. Mineral-mining. FMC CORPORATION. July 14, 1960, No. 24585/60. Class 68(1). A method of mining underground deposits removable in liquid form complises drilling a pair of wells A, B into the deposit formation 10, applying a fracturing fluid under pressure to the formation adjacent at least one of the wells to fracture the deposit formation between the wells, displacing the fracturing fluid with an aqueous liquid under pressure to dissolve or melt and transport the deposit in liquid form to a well for removal from the formation 10, said aqueous liquid being maintained under sufficient pressure to prevent resettling of the formation until the passage between the wells is sufficiently enlarged as not to be closable when the formation is then returned to the normal environmental pressures.
Patent GB-918821-A (GB)
Title: New or improved device for handling watch crystals
IPC: G04D3/04
Filed: 1961-07-07
Abstract: 918,821. Watchmakers' tools. SHIFFMAN, J. July 7, 1961 [Dec. 29, 1960], No. 24707/61. Class 139. [Also in Group XXIII] A device for handling watch crystals comprises a number of fingers 13 movable towards one another to grip the crystal, projections 40 on the base of the gripping device for seating on the uprights 35 of a crystal supporting stand 33 and means on the device for adjusting the distance between the ends of the fingers 13 and the supporting surface 34 of the stand. The fingers 13 are mounted in a casing comprising upper and lower cup-like members 1, 2 in telescopic relation, the fingers extending through radial slots 27 in the bottom of the cup 2. A dependent boss 26 in the upper end of the cup 1 provides a well 6 which accommodates a non- round nut 7 which is mounted on a threaded stem 9 extending axially through the casing. A rod 30 having a finger knob 31 at one end and at the other end a conical head 32, is freely slidable in an axial passage in the rod 30. The stem 9 at its lower end is provided with a non-round head 10 fitted in the bottom wall 4 of the cup 2. Mounted on the stem 9 adjacent to the stem 10 is a sleeve 11 having an annular groove 12 that is engaged by curved noses 17 of the fingers 13 the noses being held in the groove 12 by a washer 19 fitted around the stem 9 and confined by nuts 20, 21. A conical spring 22 seated on the bottom wall of the cup 2 engages notches 16 in the heads 15 of the angers whereby a rocking pivotal movement of the fingers is allowed. An adjusting head 23 for the fingers is in the form of a frusto-conical follower which fits around the stem 9 and is freely movable up and down. To close the jaws the cup 1 is rotated relative to the cup 2. A number of disc-shaped projections 40 are engaged at the bottom of the cup 2 in groups of different heights. When the tool is placed on the stand with three of the discs 40 of selected height seated upon the shoulders 36 of the posts 35, the arrangement is such that the lower ends of the fingers are at a given distance from the upper surface of the concavity 34 of the stand so that the edge of the crystal resting therein will be engaged by the fingers at a distance from the lower surface of the crystal. Depression of the rod 30 holds the crystal in the concavity.
Patent GB-1335492-A (GB)
Title: Cyclocytidine compounds and process for making same
IPC: C07H19/12
Filed: 1971-04-19
Abstract: 1335492 Cyclocytidines SYNTAX CORP 19 April 1971 [19 March 1970] 24761/71 Heading C2C Novel compounds of Formula I (in which each of R<SP>1</SP> 1 , and R<SP>2</SP> 1  is H, alkyl, cycloalkyl, aryl, aralkyl, alkaryl R<SP>3</SP> is alkyl, aryl, aralkyl, alkaryl, cycloalkyl or heterocyclyl, X is a pharmaceutically acceptable anion, Y is H, OH, halogen, etherified OH, acyloxy, amino, alkylamino or N 3 , W is O or S, Y is OH, Cl or Br and Z is a group of Formula II, III or IV wherein R<SP>4</SP> is H, halogen, alkyl, cycloalkyl, hydroxyalkyl, haloalkyl, N 3 , amino, NO 2 , alkylamino or acylamino and R<SP>5</SP> is H or CH provided that when Z is a group of Formula II or III, Y is OH, Cl or Br, R<SP>1</SP> and R<SP>2</SP> are H, alkyl or cycloalkyl and W is O, and that when W is S, Z is the group of Formula V R<SP>1</SP> and R<SP>2</SP> are H and Y is OH) are prepared by reacting a cytidine compound of Formula VI with an x-acyloxy acyl halide of Formula VII (in which X<SP>1</SP> is Cl, Br or I, and each of R<SP>6</SP> and R<SP>7</SP> is alkyl, cycloalkyl, aryl, aralkyl or alkaryl, and when one of R<SP>6</SP> and R<SP>7</SP> is aryl, aralkyl or alkaryl, the other can be H). N<SP>4</SP>-alkyl-5-azacytidines are prepared by reacting an alkylamine with 1-(2,3,5-tri-O-acetyl-#-D- arabinofuranosyl) - 4 - methoxy - 2 - oxo- 1,2 - dihydro - 1,3,5 - triazine in a methanol solution. 5<SP>1</SP> - Deoxy - 5<SP>1</SP> - halo - 5 - azacytidines and - 6- azacytidines are prepared by reacting 5- or 6-azacytidine with acetic anhydride to give N<SP>4</SP> - acetyl - (5 or 6) - azacytidine, reacting this with CCl 4  or CBr 4  in the presence of triphenylphosphine to give N<SP>4</SP>-acetyl-5<SP>1</SP>-(bromo or chloro)- 51 - deoxy - (5 or 6) - azacytidine and deacylating this by treatment with a mixture of methanol and aqueous ammonium hydroxide. Pharmaceutical compositions having antiviral and cytotoxic activity comprise a compound of Formula I together with pharmaceutical carrier.
Patent GB-1193904-A (GB)
Title: New Polymers and Copolymers Containing Silver & Copper
Inventor: STOY ARTUR
IPC: C08K3/105
Filed: 1968-05-24
Abstract: 1,193,904. Polymer metal complexes. CESKOSLOVENSKA AKADEMIE VED. 24 May, 1968 [25 May, 1967], No. 24837/68. Heading C3P. [Also in Division G2] A polymer-metal complex is formed by contacting a polymer system containing nitrile groups and groups capable of forming the anions -OSO- 2 , -OSO- 3  or -OPO<SP>2-</SP> 3  in ionizing media. both groups being attached to macromolecular main chains, with silver or copper cations. The ionizing media may be water. The groups may be borne by the same or different macromolecules. The polymer system is preferably a copolymer of acrylonitrile with vinyl sulphonic acid, styrene sulphonic acid or an alkali metal salt of one of these acids. The complex metal cation may be reduced thus forming a dispersion of the free metal in the copolymer. The free metal may be reconstituted by contacting the copolymer with silver or cuprous cations. The copolymer complex containing silver cations may be treated with a halide solution, and this polymer system containing dispersed silver halide may be contacted with silver or cuprous cations. In the examples, acrylonitrile, sodium vinyl sulphonate and optionally ethylene glycol bis-methacrylate or acrylamide, are co-polymerized using a catalyst comprising potassium pyrosulphite and ammonium persulphate with a copper sulphate activator. The polymer is formed into a membrane layer or filament which is treated with silver nitrate or acetate solutions or a solution containing cuprous ions. In other examples silver nitrate is added to polyethylene- or polystyrene-sulphonic acid and this is mixed with polyacrylonitrile; alternatively the two polymers are mixed and together added to a silver nitrate solution. In, a further example, a nitric acid solution of polyacryonitrile is treated with silver nitrate and then reacted with an acrylonitrile-ethylenesulphonic acid copolymer.
Patent GB-443591-A (GB)
Title: Improvements in refrigerating systems employed in the liquefaction of gases
IPC: F25J3/04
Filed: 1934-09-01
Abstract: 443,591. Refrigerating. LINDE AIR PRODUCTS CO., 30, East 42nd Street, New York, U.S.A.-(Assignees of Edwards, H. D.; 55, Pinebrook Drive, Larchmont, New York, U.S.A.) Sept. 1, 1934, No. 25207. Convention date, Nov. 20, 1933. [Class 29] [See also Groups XXVI and XXVIII] Cold-air and like systems.-In a process for liquefying oxygen &c. by compression, cooling and expansion of air, the air after stage compression and cooling in cylinders 10-14 and intercoolers 20-24 is delivered to a " booster " compressor 27 and after further cooling at 28 is divided into two portions, one of which is cooled in an interchanger 29<1> and expanded through a nozzle 29<11> into a rectification column 30, while the other portion is expanded in an engine 32 coupled to the booster compressor and then delivered through a pipe 33 to the rectification column. Liquid rich in oxygen is drawn off at 39 and gas rich in nitrogen at 40. It is stated that by reason of the open communication of the conduits for the two portions of compressed air any inequality of action due to clogging and clearing of the expansion valve is balanced by the action of the coupled engine and booster. The stroke of the inlet poppet valve 48 of the expansion engine may be varied by hand or automatically. The valve may be actuated by a lever 46 having a cam surface 51 engaged by an articulated part 45 of a rod 43 reciprocated by a cam 42 on the engine crank-shaft 41, the articulated portion being movable as by a rod 54 and lever 52, to bring its end 50 into engagement with any desired part of the surface 51. Specifications 392,733, and 418,673, [Group XXVIII], are referred to.