baber/WOPTO huggingface dataset:
Patent GB-574587-A (GB)
Title: Improvements in or relating to base racks for cranes
IPC: B66C23/84
Filed: 1944-01-25
Abstract: 574,587. Cranes. BRITISH LUKS, Ltd., and.MARTIN, W. S. Jan. 25, 1944, No. 1381 [Class 78 (iv)] The slewing ring of a crane comprises a disc 1 to which are welded a ring 2 for receiving a separate rack ring 7, a boss 3 for the pivot pin 3a, and webs 4 which are also welded to the ring 2 and the boss. The ring 7 is secured in the ring 2 by bolts 8 passing through the ring 2 into recesses in the ring 7. The slewing gear is accommodated in the cut-out portion 1b in the disc 1 provided with a stiffening web 13. The rack ring 7 is recessed at 7a so that a number may be fitted together and cut simultaneously. A reversing ramp 9 is welded to brackets 10 which are themselves welded to the webs 4.
Patent GB-1114515-A (GB)
Title: Improvements in electrical frequency discriminator circuits
Inventor: SIMMONDS ERNEST SIDNEY
IPC: H03D3/14
Filed: 1966-01-12
Abstract: 1,114,515. Frequency discriminators. TELEPHONE MANUFACTURING CO. Ltd. 2 Jan., 1967 112 Jan., 1966], No. 1469/66. Heading H3A. A discriminator for controlling the relay 12 of a frequency shift telegraphy receiver comprises two transformers T1 and T2 which have their primary windings tuned to resonate at the mark and space frequencies and their secondary windings connected to the bases of two transistors VT1 and VT2 connected in series across a power supply. If the input applied to terminals I/P is not at the centre frequency, one of the transistors will conduct more than the other and the excess current will flow through a trigger stage 11 which controls relay 12 to produce a mark or a space according to the sense of current flow through it. In a modified circuit (complete drawing, not shown), VT1 is an NPN transistor and the secondary winding of T1 is connected between its base and the negative power supply line,
Patent GB-587829-A (GB)
Title: Improvements in and relating to plasticised compositions derived from resinous polymers
IPC: H01B3/44
Filed: 1945-01-19
Abstract: A flame resistant rubber-like composition comprises a polymer or copolymer of vinyl chloride which is insoluble in a mixture of methyl isobutyl ketone and toluene, a plasticiser in an amount of from 25 to 55 per cent by weight of the composition, and antimony oxide, preferably the trioxide, in an amount of from 0.7 to 15 per cent by weight of the polymer and plasticiser.  The vinyl chloride may be copolymerized with vinyl acetate, propionate, butyrate, hexoate, vinyl cyanide, vinylidene chloride, methyl-ethyl acrylate and styrene, using low temperatures, i.e. 40 DEG  C., and oxidising catalysts and, if desired, in aqueous emulsion.  Suitable plasticisers are di-(2-ethylhexyl) phthalate, tri-(2-ethylhexyl) phosphate, butyl phthalyl butyl glycollate, di-(beta-butoxyethyl) phthalate, acetyl tributyl citrate and tricresyl phosphate.  Other compounds which may be added as heat stabilisers include litharge, white lead, lead stearate, and organo-metallic tin derivatives. The compositions which may also contain lubricants such as carbon black, mineral oil and cocoa butter are especially useful for insulating wires and tapes and may also be laminated in sheet form to fabrics. Solvents such as mesityl oxide, cyclohexanone and isophorone are used for casting films and also for sealing tapes made from the compositions.  Specification 450,856 is referred to.
Patent GB-147964-A (GB)
Title: Improvements in the manufacture of aromatic alkylamino compounds
IPC: C07C225/34
Filed: 1919-01-22
Abstract: Alkylaminoanthraquinones are obtained by heating 1- or 2- aminoanthraquinone with dialkyl sulphates in presence of a mild alkaline reagent, such as sodium carbonate or magnesium oxide, and a solvent of high boiling-point, such as nitrobenzene or tetrachlorethane.  Examples are given of the preparation of 1-methylaminoanthraquinone, 1-ethylaminoanthraquinone, and 2-dimethylaminoanthraquinone.  Alkylarylamines.-According to the Provisional Specification, alkylamines of the benzene, naphthalene, and anthracene series are obtained by treating the amines with alkyl sulphates in an inert medium or solvent.
Patent GB-113948-A (GB)
Title: Strap for Securing Boxes and the like.
Inventor: ASANO KICHIJIRO
IPC: B65D6/00
Filed: 1918-01-29
Abstract: 113,948. Asano, K. Jan. 29, 1918 Straps and bands, strengthening; c o r n c r joints and strengthening-pieces.-A bindingstrip adapted to bo nailed to a box &c. is built up of two or more plies 3, 5 of thin wood, which are arranged with the directions of the grain crossing one another and are interleaved with layers 4, 6 of cloth, the whole being secured together by cement. The binding-strip is covered with strong cloth coated or impregnated with a waterproofing-composition. The strip may be left flat; or it may he bent to an angular cross-section so as to embrace the corners of the box &c.
Patent GB-854698-A (GB)
Title: Aerial camera
IPC: G03B15/00
Filed: 1958-01-17
Abstract: 854,698. Aeronautical cameras. HYCON MFG. CO. Jan. 17, 1958 [Jan. 28, 1957], No. 1677/58. Class 98(1) In the operation of an aeronautical camera the film is never stationary but is fed slowly to keep the image stationary during exposure and at a faster varying rate to effect replacement of the exposed film between exposures. Preferably, the rate of feed rises smoothly to a maximum mid-way between exposures and then returns to a constant minimum value for, exposure. As shown, the variable drive is effected by an eccentric gear wheel 14 driving a floating gear 17 rotatable about its own axis and the axis of gear 19. Gear 19 drives film take-up spool 6 and film metering roller 5. A setting type blade shutter is kept in step with the film feed by electrical pulses from a commutator driven by motor 11 operating a Ledex (Registered trade mark) type rotary solenoid which sets the shutter and puts an electrical circuit (Fig. 5, not shown) into a condition for operating a shutter releasing solenoid when cam 15 closes switch 16. Safety switches (Fig. 8, not shown), operated in accordance with the state of the shutter bring the film feed and shutter into step if they are started out of phase.
Patent GB-234863-A (GB)
Title: Improvements in or relating to spigot and socket pipe joints
IPC: F16L17/035
Filed: 1924-01-22
Abstract: 234,863. Victaulic Co., Ltd., Johnson, P. G., and Morgan, H. R. Jan. 22, 1924. Cup-leather, overlap joints. - A pipe joint is provided with one or more fluid-sealed hollow packing-rings 40 of flexible material having the free edges 41, 42 extending towards each other directly or at an angle. In the form shown in Fig. 1, the packing-ring is held in position by a ring 59 bolted to a flange 60 on the socket member 30 of the pipe. In modifications, the ring 59 may be screwed into an enlarged and of the socket member 30, or the ring may be formed as an integral inturned end of the enlarged socket member. Fig. 7 shows the application of the packing-rings to a sleeve adapted for connecting two spigot pipe members 20. For connecting two socket pipe members, an internal sleeve may be similarly employed. The outer surface of the flexible packing-ring may consist of two conical portions as in Fig. 1, of conical, cylindrical, and flat portions as in Fig. 7, or it may have a cylindrical surface bounded by two conical or two flat surfaces. The spigot and socket members may be locked together longitudinally when desired by means such as described in Specification 166,718.
Patent GB-853513-A (GB)
Title: Improved curtain hooks
IPC: A47H13/04
Filed: 1956-01-19
Abstract: 853,513. Suspending curtains. IVES, C. G., and IVES, A. Jan. 18, 1957 [Jan. 19, 1956], No. 1792/56. Class 52(5) [Also in Group XXV] A metal or plastic curtain hook or runner, for use without a heading tape, has a pointed piercing limb 2, spaced from a central stem 5 and a blunt-ended hooking limb 1 which may be out-turned at 4.
Patent GB-998677-A (GB)
Title: Treatment of polyacrylonitrile fibers
IPC: D01F11/06
Filed: 1963-01-15
Abstract: Fibres composed of at least 80% by weight of polymerized acrylonitrile are whitened and their basic dye uptake improved by treating them with an aqueous solution of hypophosphorous acid or a mixture thereof with a water-soluble metallic salt thereof, having a pH of 7 or below.  The aqueous solution may contain 0.01-1% by weight of the hypophosphorous acid and may be applied to the fibres by spraying, as an additive to the finishing bath, by wicks or by the use of rolls.  The water soluble hypophosphite may be an alkali or alkaline earth metal hypophosphite.  The fibres may be treated after spinning, stretching and washing prior to drying.  The fibres may be made from polyacrylonitrile, from a copolymer containing at least 80% by weight of acrylonitrile or from a blend comprising polyacrylonitrile or copolymers comprising acrylonitrile with 2-50% by weight of another polymeric material, the blend having an overall polymerized acrylonitrile content of at least 80% by weight.  In the copolymers the acrylonitrile may be copolymerized with acrylic, a -chloroacrylic or methacrylic acid, methyl, ethyl, butyl, methoxy-methyl or b -chloroethyl acrylate, methacrylate or chloroacrylate, vinyl chloride, fluoride or bromide, vinylidene, chloride, 1-chloro-1-bromoethylene, methacrylonitrile, acrylamide, methacrylamide, a -chloroacrylamide, methyl vinyl ketone, vinyl acetate, chloroacetate propionate or stearate, N-vinylphthalimide, N-vinyl succinimide, methylene malonic esters, itaconic acid or esters thereof, N-vinyl carbazole, vinyl furane, alkyl vinyl esters, vinyl sulphonic acid, diethyl citraconate or mesaconate, styrene, vinyl naphthalene, vinyl pyridine, alkyl substituted vinyl pyridines, 1-vinyl imidazole or alkyl substituted 1-vinyl imidazoles.
Patent GB-724658-A (GB)
Title: Improvements in or relating to machines for cold-bending pipes
IPC: B21D7/06
Filed: 1953-01-21
Abstract: 724,658. Angular bending. MINGORI, R. P. Jan. 21, 1953 [Nov. 5, 1952], No. 1829/53. Class 83 (4). Apparatus for cold bending pipes includes a lower cheek plate 5 having a series of holes 8 along its length, lateral abutments 13 positioned along said plate, a central former 4 and means 1 (e.g. a hydraulic jack) for pressing the former against a pipe 14 to be bent at a position between the lateral abutments, and an upper cheek plate 21 disposed with its longitudinal axis parallel to that of the lower plate 5 and having a series of holes 22 along its length, said upper plate 21 being slidable longitudinally in guide means 19 which are pivoted, at 16, to the former pressing means 1 so as to allow the said plate 21 to be lowered onto the lateral abutments 13 to secure them, in conjunction with the lower plate 5, in appropriate holes in these plates. Marks 11 are formed on the plate 5 to identify the holes 8 therein. The upper plate 21 may be formed with stops at each end to prevent it leaving the guide 19.
Patent GB-715671-A (GB)
Title: Improvements in or relating to electrical network coupling units
Inventor: BENNETT ARTHUR EDWARD CHARLES
IPC: H01G2/00
Filed: 1949-01-24
Abstract: 715,671. Radio receiving apparatus. DUBILIER CONDENSER CO. (1925), Ltd. Jan. 12, 1950 [Jan. 24, 1949; Feb. 28, 1949], Nos. 1873/49 and 5409/49. Class 40 (5) A resistance-capacity coupling unit comprises one or more rod-like component members together with one or more plate-like members embedded within a moulded mass of insulating material. In an embodiment taking the form of a pair of capacitors with one terminal in common and with the others interconnected by a resistor, Fig. 1 (not shown), the capacitors comprise a sheet of insulating material, e.g. mica A, Figs. 2, 3, 5, one face of which carries a single metallized coating B and the other a pair of coatings B1, B2. Each face is protected by a further sheet of insulating material C, C1; connection is made to the metallized areas B1, B2 by means of foil tabs C2, C3 which are folded over the edges of the sheet C1, being held under and connecting with metal clamps D, D1 which hold the assembly, together. Connection is made to the area B by means of a further foil tab C4. A rod-like resistor R is connected'across the clamps D, D1 and the whole enclosed within a moulded mass of insulating material, e.g. a thermosetting plastic ; Specification 705,472, [Group XXXVI], is referred to in this respect. In a modification, Fig. 6 (not shown), the end clamps of the condenser assembly are provided with tab portions which are clipped around the resistor leads, these being extended and forming external leads for the unit; in a further modification (Figs. 7, 8, not shown) the sheet A is replaced by a pair of sheets of insulating material, each metallized on both faces and comprising one of the capacitors. Another embodiment forming an intervalve coupling unit (Fig. 13, not shown) includes an anode resistor R3, Figs. 10, 11, a coupling capacitor G of tubular form, and grid leak and suppressor resistors R2, R4 respectively; the last being screened from the other components by interposition of a plateform filter capacitor H, one plate of which is earthed. Each of the components G, H may comprise two or more resistors or capacitors. In this respect Specification 653,402 is referred to.
Patent GB-1112138-A (GB)
Title: Process for the production of aryl ethers
Inventor: BILLER EFIM
IPC: C07C43/20
Filed: 1967-01-13
Abstract: Aryl ethers are prepared by reacting a phenol with an alcohol, ether, olefin or carboxylic acid ester, at 80-240 DEG  C., in presence of an aq. solution of ZnCl2, ZnBr2, CdCl2 or CdBr2 containing at least 1 mol. H2O per mol. of metal halide, the reaction time being kept brief so that not more than 0.7 mol of nuclear alkylation product is formed per mol. of aryl ether. Examples describe the preparation of the isopropyl, ethyl and methyl ethers of phenol using respectively (Me2CH)2O, EtOH and MeOH; in the latter case, o- and p-methylanisoles form a substantial by-product.
Patent GB-973691-A (GB)
Title: Improved products composed of microcellular rubber and similar elastomeric substances
Inventor: COTTLER ROBERT
IPC: A43B13/18
Filed: 1960-01-20
Abstract: 973,691. Boots &c. C.I.C. ENGINEERING Ltd. Jan. 18, 1961 [Jan. 20, 1960], No. 2046/60. Heading A3B. Patterned shoe soles comprise a layer made of porous or microcellular material 4 provided with projections which are covered by a layer of dense elastomeric material 1. The pattern may be in the form of transverse wedge shaped parallel ribs, transverse or longitudinal corrugations &c. The dense rubber covers the waist undersurface, and the side edges of the heel, sole and waist portions. The sole is moulded direct on to the upper assembly. Specification 940,970 is referred to.
Patent GB-1284511-A (GB)
Title: Oxadiazoline derivatives
Inventor: BOESCH ROGER
IPC: A01N47/30
Filed: 1971-01-15
Abstract: 1284511 1,3,4-Oxadiazol-2-one derivatives RHONE-POULENC SA 15 Jan 1971 [16 Jan 1970] 2162/71 Heading C2C The invention comprises novel 1,3,4-oxadiazol-2-one derivatives of the formula wherein R is C 1-4  alkyl or phenyl, optionally substituted by at least one substituent selected from halogen atoms, and C 1-4  alkyl and C 1-4  alkoxy radicals; R 1  is H, halogen, C 1-4  alkyl, C 1-4  alkoxy, NO 2  or CF 3 ; R 2  is H, C 1-4  alkyl, C 2-4  alkenyl, C 2-4  alkynyl, C 1-4  alkoxy or C 2-4  alkenyloxy; and R 3  and R 4  each are H or C 1-4  alkyl, their preparation and herbicidal compositions containing them. The compounds are prepared by one of the following methods:- (A) When R, R 1 , R 2  and R 3  are as defined above and R 4  is H by reacting amines of the Formula III: with the corresponding 3-(2.R 1 -4-isocyanatophenyl) - S - R - 1,3,4 - oxadiazol - 2 - ones, or (B) when R, R 1 , R 2  and R 3  are as defined above and R 4  is C 1-4  alkyl, by reacting amines of the above Formula III with compounds of the Formula V: wherein R 4 <SP>1</SP> is C 1-4  alkyl, or (C) when R, R 1  and R 4  are as defined above and R 2  is C 1-4  alkyl, C 2-4  alkenyl, C 2-4  alkynyl, C 1-4  alkoxy or C 2-4  alkenyloxy, and R 3  is C 1-4  alkyl, by reacting carbamoyl halides of the formula wherein R 2 <SP>1</SP> is C 1-4  alkyl, C 2-4  alkenyl, C 2-4  alkynyl, C 1-4  alkoxy or C 2-4  alkenyloxy and R 3 <SP>1</SP> is C 1-4  alkyl with the appropriate 3-(4-amino- 2 - R 1  - phenyl) - S - R - 1,3,4 - oxadiazol - 2 - ones or 3 - [4 - (C 1-4  alkylamino) - 2 - R 1  - phenyl] - SR - 1,3,4 - oxadiazol - 2 - ones, or, (D) when R, R 1  and R 4  are as defined above and R 2  is C 1-4  alkyl, C 2-4  alkenyl or C 2-4  alkynyl and R 3  is H by reacting isocyanates of the formula wherein R 2 <SP>11</SP> is C 1-4  alkyl, C 2 _ 4  alkenyl or C 2-4  alkynyl with the appropriate 3-[4-amino (or 4- C 1-4  alkylamino) - 2- R 1  - phenyl] - S - R - 1,3,4- oxadiazol-2-ones. 3 - (2 - Chloro - 4 - isocyanatophenyl) - 5 - tbutyl - 1,3,4 - oxadiazol - 2 - one is obtained by adding a solution of phosgene in toluene to 3 - (2 - chloro - 4 - aminophenyl) - S - t - butyl- 1,3,4-oxadiazol-2-one, resulting from the reduction of the corresponding nitro compound. 3 - (2 - Chloro - 4 - methylaminophenyl) - 5 - tbutyl- 1,3,4-oxadiazol-2-one is obtained by hydrolysing 3 - [2 - chloro - 4 - (N - methylacetamido)- phenyl] - S - t - butyl - 1,3,4 - oxadiazol - 2 - one. Herbicidal compositions contain as active ingredients at least one of the above novel compounds in association with one or more diluents.
Patent GB-620625-A (GB)
Title: Improvements relating to fuel-systems for gas-turbine-engines
IPC: F02C7/22
Filed: 1947-01-23
Abstract: 620,625. Fluid-pressure servomotor-control systems. HOOKER, S. G. Jan. 23, 1947, No. 2195. [Class 135] [Also in Group XXVI] In a gas-turbine plant comprising one combustion equipment and two independent rotors, over-speeding of either rotor produces a reduction in the fuel supply. Two fuel pumps 23, 24, operating in parallel are driven from rotor 14. They comprise speed-responsive means which reduce the pump outputs when a certain speed is passed. The other rotor is geared to a centrifugal pump 45, the delivery pressure of which also controls the pump output, to reduce it when a certain speed is passed. In an alternative arrangement, the pump 45 is omitted and the pumps 23, 24 are driven separately by the two turbine rotors. Each pump 23, 24 comprises a swash-plate 30, or, equivalent, the inclination of which is controlled by a piston 31. The piston is pressed upwards by a spring and is subjected above to the pump delivery pressure and below to the same pressure by fluid passing through a constricted orifice 34. The pump rotor 28, which carries the pistons 29, has radial passages 37 forming a centrifugal pump and the delivery pressure of this pump is applied to one side of a spring-loaded diaphragm 39. At an excessive speed, this pressure is sufficient to cause the opening of a valve 36 and the consequent lowering of the fluid pressure below the piston 31. The piston then moves to reduce the inclination of the swash-plate 30 and the output of the pump. The pumps are connected in parallel between the pipes 21, 27 and the spaces below the pistons 31 are connected by a pipe 32 so that the pistons 31 move together. The delivery of the pump 45 is applied to one side of another spring-loaded diaphragm and similarly controls a leak-valve 52 connected to the pipe 32. In the arrangement shown, one of the pumps 23, 24 may be omitted.
Patent GB-1216755-A (GB)
Title: Pulse generator
Inventor: BERNARD PAUL
IPC: H03K3/315
Filed: 1968-01-15
Abstract: 1,216,755. Pulse generators; pulse modulation circuits. COMMISSARIAT A L'ENERGIE ATOMIQUE. 15 Jan., 1968 [30 Jan., 1967], No. 2203/68. Headings H3T and H4L. A pulse generator comprises a capacitor 8, a constant current discharge circuit 10, 14 for the capacitor and a charge circuit having a diode 30 in series with a transistor 28 whose conduction is controlled by a trigger system 6, 18 having a tunnel diode 6 connected between a reference potential and a D.C. biased input adapted to receive control pulses, the input controlling an output transistor 18 and controlling a transistor 16 of a blocking system controlled by the voltage across the capacitor 8 and adapted to control the trigger system 6, 18. As shown with the tunnel diode 6 in its low voltage state and capacitor 8 charged via diode 30 and transistor 28 a control signal at E causes the tunnel diode 6 to change to its high voltage state. This turns ON transistor 18 which saturates and turns OFF transistor 28 and diode 30 so that capacitor 8 discharges to produce a linear ramp voltage at A (Fig. 2, not shown). This causes a decreasing current through the blocking transistor 16 which changes the tunnel diode 6 back to its low voltage state. Transistor 18 turns OFF and this causes transistor 28 to saturate and diode 30 to conduct so that the capacitor 8 recharges. The mono-stable circuit 4 produces a pulse output at S and if a control pulse at E is applied which is longer than the unstable period of the circuit 4 then several output pulses are produced. The tunnel diode 6 may be initially biased in the high voltage state so that when a control signal is applied at E a sequence similar to above occurs. The capacitor 8 is initially discharged and on change of state of tunnel diode 6 to its low voltage state the capacitor 8 recharges. This causes the current flowing through the transistor 16 to increase until a value is reached which causes the tunnel diode 6 to switch back to its high voltage state and the capacitor 8 is then discharged. The duration of the charging period may be varied by inserting an adjustable resistor between 28 and 30. In a modification the connection of the tunnel diode 6 may be reversed (Fig. 4, not shown). In a further modification (Fig. 7, not shown), the connection of the diode 30 may be reversed and the transistor 28 is then replaced by an NPN type. The pulse generator may also operate as a frequency divider, a variable frequency pulse generator (Figs 9A, 9B, waveform b not shown), a voltage-frequency converter, a repetition frequency modulator or digital analogue converter where the frequency of the produced signals is proportional to the current through the transistor 10. In the latter arrangement, the transistor 16 may be replaced by a Darlington circuit.
Patent GB-166919-A (GB)
Title: Improvements in or relating to the manufacture of artificial teeth
IPC: A61C13/10
Filed: 1920-01-23
Abstract: 166,919. Joannides, C. Jan. 23, 1920. Teeth, artificial.- A flat-back pin tooth is formed at its cutting edge with a slightly overhanging lip which protects the thin edge of the rubber or metal back and prevents the backing from showing through the thin edge of the tooth. The tooth is so formed that the cutting-edge is in the plane of the flat back of the tooth. Fig. 2 shows a tooth A having an undercut lip C, and Fig. 4 a modification in which the ends D of the lip C are extended up the sides of the tooth. In modifications, otherwise similar to those shown, the lip C is not undercut.
Patent GB-147407-A (GB)
Title: Improvements in and relating to chinese and like collapsible lanterns and candle holders therefor
IPC: F21V35/00
Filed: 1920-01-26
Abstract: 147,407. Rodway, J. I. Jan. 26, 1920. Ornamental illuminations, lamps for.-The bottom of a Chinese or like collapsible lantern is formed with an opening, through which a holder carrying a lighted candle is inserted from below and secured by partial rotation. The holder comprises a socket 5, arms 6, a grease cup 4, and gripping rib 7 and is inserted through an opening consisting of a circular aperture 2 and slots 3 in the lantern bottom. The grease cup 4 substantially covers the slots 3 when the holder is in position..