baber/WOPTO huggingface dataset:
Patent GB-553827-A (GB)
Title: Improvements in or relating to the electrodeposition of metals
IPC: C25D7/04
Filed: 1941-12-04
Abstract: 553,827. Electroplating tubes &c. LISTER & CO., Ltd., R. A., and WERRETT, R. Dec. 4, 1941, No. 17335. [Class 41] In apparatus for electroplating simultaneously the inner and outer surfaces of a tube or container supported by a jig functioning as the cathode, one or more anodes suspended from the jig being disposed within and one or more exterior to the article, the inner anode is suspended from the upper and the outer one from the lower part of the jig. The apparatus shown is for plating a longitudinally divided flanged cylindrical journal bearing 52. The bearing is supported by an annular continuity member 106, preferably of antimonial lead, suspended by arms 110 from a block 112 secured to the apertured base 48 of the jig 42. The inner anode 56, 58, extends into the bearing and an anode 60 surrounds it. The inner anode is carried by a stem 64 provided with a lead-in 72 and formed with fins 66 seating on an insulating ring 68 carried by the jig ; the outer anode has a threepoint suspension consisting of a bolt 74 provided with a lead-in 84 and connected to an arm 78 of the anode with an insulating sleeve 80 interposed between the arm and the jig, and a pair of studs 98 carried by insulating sleeves 100 engaging two further spaced, radial arms of the anode.
Patent GB-810815-A (GB)
Title: Inching assembly for power presses
Inventor: DANLY JAMES CLOUGH
IPC: F02N15/00
Filed: 1956-06-06
Abstract: 810,815. Mechanical presses. DANLY MACHINE SPECIALTIES Inc. June 6, 1956, No. 17421/56. Class 87(2). [Also in Groups XXIV and XXXIV] A mechanical press has a driving shaft 24 provided with a brake disc 26 located between two brake plates 28, 30 carried by a rotatable brake housing 14. One brake plate 30 is movable to clamp the disc between the plates and prevent the shaft from moving relatively to the brake housing. This is provided with means for stopping its rotation and with means for rotating it and so rotating the shaft when it is desired to inch the press. The shaft is normally driven from its main source of power through a clutch which is opened at the same time as the brake is applied. In the form shown, a worm wheel 16, attached to the brake housing, is rotated by a worm 36, driven by an independent motor on the press frame. The drive shaft 24 of the press, clutched by the brake to the brake housing, thus rotates and adjusts the position of the press slide accurately, because of the small pitch of the worm. In the normal operation of the press the independent motor is stopped and may be braked and so prevents the housing from rotating. The plate 30 is urged towards the disc 26 by springs 32 and is pulled in the opposite direction, to release the brake, by rods 39 when fluid under pressure, supplied to an annular space 47, forces the plate 48 outwardly. The bearing 23 supports the drive shaft and the machine is air-cooled through openings 29, 31 and 33.
Patent GB-198919-A (GB)
Title: An improved device for pressing and stretching trousers
IPC: A47G25/72
Filed: 1922-06-24
Abstract: 198,919. Hedberg, C. H. June 24, 1922. Trouser stretchers; combined presses and stretchers. -Clamping strips a, a<1> are maintained apart by members f having slots f<1>, with which engage clamping nuts e<1> working on screws e, which project from brackets b secured to the top of the corresponding clamping strip. To the bottom of the strip are attached brackets b<1> having lugs c through which clamping screws b<3> pass. The screws also pass through the brackets b and serve to tighten the clamping strips against the garment. For storage, the strips a, a<1> are placed alongside one another with the nuts e<1> opposite one another in the curved parts of their corresponding slots.
Patent GB-772494-A (GB)
Title: Improvements in or relating to charging devices for electroscopes
Inventor: ANDREWS THOMAS DESMOND HUDSON
IPC: G01T1/142
Filed: 1954-06-15
Abstract: 772,494. Electrostatic meters. DOWTY NUCLEONICS, Ltd., [formerly DAVIS, WYNN & ANDREWS, Ltd.]. June 6, 1955 [June 15, 1954], No. 17492/54. Class 37. A device for charging dosimeters comprises a tubular metal casing 11, one end 12 of which forms a socket receiving and making connection with the charging-pin end of a dosimeter. The casing 11 is in part lined with a tube 13 of insulating material, e.g. polystyrene, retained by a grub-screw 14. Within the tube 13 is a dry electrical pile 15, one end of which is connected to a conducting rod 16 whose forward end contacts the charging pin of the dosimeter. The inner end of the rod 16 is enlarged by a cylindrical block 17 of metal secured to the tube 13 by a screw 18, the forward end of the block being cut at 45 degrees and polished so as to reflect light from an external source-received via a port 31 in the casing 11-on to the electroscope scale. A recess is also formed in the block to receive a condenser 34 controlling the charging rate. The rear end of the pile 15 abuts a metal sealing washer 19 retained by an annular insulating member 20 which is held in place by a grubscrew 21. The contact rod 23 of a push-button switch slides within the member 20; the button 24 slides within the casing 11 and is retained in position by a pin 26 working in slots in the casing. The switch is normally held open by a coil spring 28. A controlled discharge may be obtained by using a condenser 34 with predetermined leakage, or by the provision of a resistor shunting this condenser.
Patent GB-688651-A (GB)
Title: Manufacture of sulfurized dyestuffs and condensation product of the anthraquinone series
IPC: C09B3/00
Filed: 1950-07-12
Abstract: Sulphurized vat dyes are made by treating a nitrogen-free quinone containing six condensed benzene rings and which may also contain rings of five carbon atoms in molten aluminium chloride with sulphur dioxide.  Ferric chloride and an alkali chloride may also be present, part of the sulphur dioxide may be replaced by a compound liberating the same under the conditions of an aluminium chloride melt, the chloride or chlorides may be reacted with the sulphur dioxide before introduction of the nitrogen-free quinone, and the nitrogen-free quinone may be reacted with the sulphur dioxide in the aluminium chloride melt in which it has been prepared from less highly-condensed materials without isolation thereof.  Quinones specified are dibenzpyrenequinone, isodibenzpyrenequinone, anthanthrone, or acedianthrone.  Some of the products may be alkylated.  In examples: (1) anthanthrone or its dibromo derivative is reacted with sulphur dioxide in an aluminium chloride - sodium chloride melt, followed by alkylation with p-toluene sulphonic acid methyl ester; (2) dibenzpyrenequinone or isodibenzpyrenequinone is reacted with sulphur dioxide similarly, and the dibenzpyrenequinone may be used without isolation from the melt in which it has been prepared from 1,5-dibenzoylnaphthalene Specification 293,768, [Class 2 (iii)]; (3) acedianthrone (Specification 369,765) or dianthrone ethane (Specification 296,817, [Class 2 (iii)]) is reacted with the addition product of sulphur dioxide and an aluminium-sodium chloride melt.  Specifications 519,123 and 573,831 also are referred to.
Patent GB-454884-A (GB)
Title: Improvements relating to the operation of gates
IPC: E05F13/02
Filed: 1935-06-18
Abstract: 454,884. Fastenings SMITH, J., and GLENTANAR T. B., Glen Tanar, Aboyne Aberdeenshire. June 18, 1935 No. 17505. [Class 44] A self-closing gate is providec with a resilient buffer plate con nected to the gate bolt so that when the buffer plate is engagec by a vehicle bumper the bolt is withdrawn and the gate car then be pushed open. In the form shown, the gate 1 has a buffer plate on each side, each buffer comprising a blade spring 7 fixed to the gate at its upper end and faced with rubber 8 at its lower end and having a wedge member 10 which engages under one side of a T-head 11 on the sliding bolt 6, so that when the wedge is pushed in the bolt is lifted.
Patent GB-1334436-A (GB)
Title: Film-perforating device
IPC: B29C65/22
Filed: 1971-05-27
Abstract: 1334436 Perforating plastic film WELDOTRON CORP 27 May 1971 [1 June 1970] 17587/71 Heading B5A A device for perforating plastic film comprises electrically conductive rotary discs 18 insulated from each other and supporting circumferentially spaced electrically heated film perforating members 10 electrically connected to the discs which are connected to a variable voltage source 30 by stationary brushes 32. The assembly 10, 18 is secured to a shaft 22 to which rollers 38 are attached, and the film is fed between the rollers and a driven roller 36, grooved at 42, whereby the film speed is the same as the surface speed of the members 10. Each of the latter may have two perforating portions; a number of such disc pairs may be located on the shaft and connected in parallel to provide zones of perforations. The perforative part of each member may be disposed parallel to the planes of the discs.
Patent GB-1001266-A (GB)
Title: Reactance transfer circuits
Inventor: BARRASS ROBERT
IPC: H03H11/40
Filed: 1962-05-15
Abstract: 1,001,266. Transistor reactance circuits. PYE Ltd. May 11, 1962 [May 15, 1961], No. 17593/61. Heading H3R. The effective value of a capacitance or inductance in a two-terminal network is amplified by a transistor circuit and the emitter circuit includes an impedance whereby the emitter D.C. standing current and the magnification of the reactive element are held constant. A capacitor, if connected to the transistor base, its other end being connected to earth, to supply potential or to the collector, presents at its emitter or collector a capacitance multiplied by # the transistor amplifier gain. Two transistors may be D.C. coupled, emitter to base, to increase the gain to # 1 , # 2 , the product of the respective transistor gains. Further, a variable resistor, e.g. voltage variable diode, may be connected between the base of the second transistor and earth, to vary the gain and capacitance in a frequency modulator, wobbulator, variable filter or A.F.C. circuit. In Fig. 6A the output capacitance varies from C when R v  = 0 to # 6 # 7 .C when R v  is large. Alternatively R v , C b  may be replaced by a frequency sensitive CR ladder circuit so that the output capacitance varies with frequency. An inductor in the emitter circuit of a transistor presents to an input to the base its inductance value multiplied by #.
Patent GB-356273-A (GB)
Title: Improvements in and relating to telephone transformers
IPC: H04R3/00
Filed: 1930-06-06
Abstract: 356,273. Microphone circuits. GRAHAM AMPLION, Ltd. and HODGSON, A. D'A., St. Andrew's Works, Slough. June 6, 1930, No. 17646. [Class 40 (iv).] A coupling transformer for two microphones 16, 17 which may be used alternatively has its primary windings 13, 14 wound in opposite directions so that the steady component of microphone current produces no magnetic effect. More than two microphones may be provided for by balancing one or more of the primary windings against the remainder. The transformer may be provided with a tertiary winding connected to a local receiver. The apparatus is particularly applicable to wireless equipment on aircraft.
Patent GB-1431164-A (GB)
Title: Heat-sealing adhesives
IPC: C09J123/34
Filed: 1974-04-23
Abstract: 1431164 Laminates BAYER AG 23 April 1974 [25 April 1973] 17666/74 Heading B5N [Also in Division C3]  Materials such as plastics, metals, porcelain and rubber, particularly rubbers to metals, may be bonded using adhesive compositions comprising (a) an ethylene/vinyl acetate copolymer or a chlorosulphonated polyolefin, (b) a chlorinated olefin or diene polymer, (c) a defined substituted diphenyl sulphone, (d) an aromatic mono- or di-nitroso compound and (e) organic solvent. Specified components are (a) ethylene/ vinyl acetate copolymers and chloro-sulphonated polyisobutylenes and polyethylenes; (b) chlorinated polyethylene, polypropylene, polyisoprene and natural rubber; (c) 2,4,41-trimethyl and 4,4<SP>1</SP>-dimethyl diphenylsulphone; (d) p-dinitrosobenzene; and (e) aromatic hydrocarbons, chlorinated hydrocarbons, alcohols, esters and ketones. The compositions may also contain phenol/formaldehyde novolaks and resols, fillers such as silicates and carbon black, and pigments. In examples, sand-blasted, degreased steel strips, optionally primed with compositions comprising chlorinated polyisoprene, phenol/formaldehyde resin, carbon black and methyl isobutyl ketone, are bonded to compounded vulcanizates of natural rubber, nitrile rubber and butadiene/styrene rubber with adhesive compositions comprising ethylene/ vinyl acetate copolymer or chlorosulphonated polyethylene, chlorinated polyisoprene, 4,4<SP>1</SP>- dimethyl and 2,4,4<SP>1</SP>-trimethyl diphenyl sulphones, p-dinitrosobenzene, carbon black, xylene and tetrachloroethylene.
Patent GB-880646-A (GB)
Title: Improvements in mineral mining machines
Inventor: ANDERSON JAMES
IPC: E21C27/02
Filed: 1960-05-19
Abstract: 880,646. Mineral-mining machines. ANDERSON, BOYES & CO. Ltd. May 19, 1960, No. 17667/60. Class 68(1). In a mineral-mining machine there is mounted beneath a gear head 12 a laterally extending cutter means, preferably an endless cutter and chain-carrying jib 16, and/or a gummer, whilst a series of shearing discs or a cutter drum 15 is mounted at the side of a second gear head 11 arranged behind the first gear head 12 in the line of travel of the machine. Specification 791,710 is referred to.
Patent GB-1530334-A (GB)
Title: Sewing machine for stitching a sliding clasp fastener stringer onto an article
IPC: D05B35/06
Filed: 1976-04-30
Abstract: 1530334 Presser feet and throat plates YOSHIDA KOGYO KK 30 April 1976 [9 May 1975] 17674/76 Heading D1G A sewing machine for sewing a stringer into an article has a presser foot comprising a main portion 16 overlying a throat plate 10 and with a forward sloping front surface, a wing 17 projecting laterally from the main portion its bottom surface 21 being above that of the main portion and having a forward sloping front surface set back from that of the main portion, a guide 14 being located on the throat plate and with a sloping surface 26 opposed to the front surface's of the presser foot. The presser foot has two main portions and wings with a gap between through which interengaged elements of a fastener pass while its stringers run under the main portions. The edges of a thick article to which the stringers have been pre-sewn run beneath the wings and are by this means folded under, Figs. 3, 4, 5 (not shown), where they are sewn by needles 11 which pass through holes 25 in the wings 17. The curved path followed by the folded over edges as they pass under the wings 17 help retain the fold, Fig. 6B (not shown).
Patent GB-256557-A (GB)
Title: Improvements in and relating to electrical cut-outs
IPC: H01H87/00
Filed: 1925-02-03
Abstract: 256,557. Bell, B., and Illingworth, W. H. Feb. 3, 1925. Mercury cut-outs. - In mercury-thread resettable cut-outs of the type described in Specifications 159,917, 172,446, and 189,284 wherein a valve member is used to prevent the return of the rejected mercury, the reserve of mercury is contained in a compressible. rubber reservoir 4 secured between the lower end of the insulating casing c so that the mercury is in contact with the lower terminal cap a. According to the invention, by depressing the core bv means of the knob d, acting through the guide bolts d<1>, against the action of the spring 2 on the pin 1, the rubber container is compressed and mercury forced up into the bore and through the valve 3. The rubber container consists of a sleeve fixed on the end of the core and clamped at the other end between the outer casing and the cap a.
Patent GB-1428900-A (GB)
Title: Apparatus for the proeuction of tubes or sheaths of metal
IPC: B21C25/04
Filed: 1974-04-23
Abstract: 1428900 Extruding LICENTIA PATENTVERWALTUNGS-GmbH 23 April 1974 [30 April 1973] 17722/74 Heading B3P An extrusion apparatus for producing tubes or cable sheaths of aluminium comprises a die 3 and a mandrel which is composed of a front part 2 loosely connected to a cylindrical part 4 so as to allow relative movement of the parts. The front part 2 is connected to the die holder 5, 7 by vanes 1 which engage supports 8 on the die holder 5, 7. The mandrel connection comprises a bolt 14 screwed into the front part 2 and slidably supported in the cylindrical part 4 under spring 6 bias. The vanes 1 and the supports 8 serve to centre the front section 12 of the front part 2 of the mandrel with respect to the die 3. The die is held against rotation by a pin 17. The apparatus may be used to produce non-circular wave-guides.
Patent GB-374291-A (GB)
Title: Improvements in or relating to gaseous electric discharge lamps
IPC: H01J61/10
Filed: 1931-06-22
Abstract: 374,291. Discharge lamps. MACEY, R., 112, Jameson Avenue, Toronto, Canada. June 22, 1931, No. 17994. [Class 39 (i).] Two solid electrodes b, c are mounted close together at one end of an elongated vitreous tube a and are connected to terminals on a common base or cap. One electrode b is enclosed by an inner vitreous tube f which extends concentrically within the tube a to a point near the end remote from the base so that the discharge in the neon &c. filling fills the tube, and the other electrode c surrounds the tube f and the electrode b. The tube may be bent to form a letter and both electrodes may be ring-shaped. The base ring may fit a standard supply socket.
Patent GB-984700-A (GB)
Title: Method of producing dendrite crystals
IPC: C30B15/30
Filed: 1962-05-10
Abstract: 984,700. Pulling dendritic crystals. TEXAS INSTRUMENTS Inc. May 10, 1962 [May 12, 1961], No. 18016/62. Heading B1S. A dendritic crystal is pulled from a supercooled portion of a melt, the remaining melt being above the melting point. The melt may be of silicon or germanium. Initial heating may be by induction. The supercooled portion of the melt may be 5-10 ‹C. below the melting point. Supercooling may be by direct contact with an inert cooling gas, Fig. 4, or by indirect gas cooling of a portion of the melt having a depth of #-“ inch, Fig. 1 or 3. The crucible containing the melt may be of graphite with a quartz liner.
Patent GB-736258-A (GB)
Title: Improvements relating to sealed metal containers
Inventor: ASHTON FRANK
IPC: B65D51/18
Filed: 1953-06-30
Abstract: 736,258. Portable containers; closures. BULPITT & SONS, Ltd. June 29, 1954 [June 30, 1953], No. 18067/53. Classes 66.and 125 (3). A metal container made of malleable metal such as aluminium or an aluminium alloy in one piece comprising a solid unseamed base 10, Fig. 1, and wall 11 has one or more internal ledges 12 on which articles may be supported, an inwardly directed portion 14 near the mouth forming an internal shoulder 16 on which an inner cap 15 is adapted to make a tight seal, the mouth 17 beyond the shoulder having a lip 19 for receiving a closure lid 18. The inner cap 15 is provided with a self-sealing plug 25 of rubber or flexible plastic adapted to be pierced by the stem of an air-exhausting apparatus or vacuum testing device. The inner cap may be provided with a gasket 23 of sealing material as shown and may be domed so that on evacuation of the container the grip of the metal round the plug is increased. The outer lid shown in Fig. 4, is adapted to be slid onto the mouth of the container until the inturned flange 31 is engaged with the lip of the mouth when the lid is secured by displacing downwardly the tongues 32.
Patent GB-222976-A (GB)
Title: Improvements in or relating to railway signalling
IPC: B61L1/18
Filed: 1923-07-13
Abstract: 222,976. British Power Railway Signal Co., Ltd., and Irving, E. C. July 13,1923. Electrical systems, automatic.-In a block system which includes a trap-point or derail, the track circuit is arranged to include a rigid frangible member fixed at the trap-point so as to be broken by the first wheel running back through the trap-point. Fig. 2 shows the device 15, which may consist of a cast iron arm of small section, secured to the fixed rail 11 of the trappoint, connected in series with the rail 4 and the fixed rail 11 by wires 14, 16. Connections are made in any usual manner to the device. A wheel running over the arms of the device fractures it and opens the track circuit.
Patent GB-779846-A (GB)
Title: Process of dehydrochlorinating polychloroalkyl chlorosilanes
IPC: C07F7/12
Filed: 1955-06-24
Abstract: Chloroalkenyl chlorosilanes are prepared by dehydrochlorinating a chloroalkyl chlorosilane having a chlorine atom bonded to a beta carbon atom of the alkyl group and another chlorine atom bonded to an adjacent carbon atom of such group, by heating it to a hydrogen chloride evolving temperature with less than the theoretical amount of a nitrogen compound required to react with the hydrogen chloride, the nitrogen compound being a heterocyclic secondary or tertiary amine, a dialkyl amine or an aliphatic dinitrile, or a hydrogen chloride salt thereof.  Further dehydrochlorination is possible of chloroalkenyl trichlorosilanes of the formula RCH = CClSiCl3, in which R is a monovalent alkyl group, to form alkynyl trichlorosilanes, provided that isoquinoline is used as catalyst in an amount of 10 to 20 per cent by weight, and the temperature is 160 DEG  to 250 DEG  C.  Suitable catalysts for the main process are pyridine, quinoline, isoquinoline, acridine, piperidine, 2-methyl pyridine, 2-methyl-5-ethyl pyridine, N-ethyl piperidine, dimethyl-, diethyl- and dipropyl amine, succinonitrile, glutaronitrile, adiponitrile, pimelonitrile and suberonitrile.  The preferred amounts are 1 to 5 per cent by weight.  The reaction is effected under reflux at temperatures of 150 DEG  to 250 DEG  C. and at atmospheric pressure.  The distilling column is provided with a still head and a receiver, and the evolved hydrogen chloride is vented from the head and the alkenyl silane collected in the receiver.  In the examples: a -chlorovinyl trichlorosilane is prepared from a ,b -dichloroethyl trichlorosilane with the use of (1) quinoline, (2) isoquinoline, (3) 2-methyl-5-ethyl pyridine, (4) N-ethyl piperidine, (5) diethylamine hydrochloride, and (8) adiponitrile; (6) gammachloropropenyl trichlorosilane is prepared from gamma - dichloropropyl trichlorosilane, using adiponitrile; (7) 1-chloro-1-propenyl trichlorosilane is prepared from a ,b -dichloropropyl trichlorosilane, using adiponitrile; (9) a -chlorovinyl ethyl dichlorosilane is prepared from a ,b -dichloroethyl ethyl dichlorosilane, using adiponitrile; and (10) 1-propynyl trichlorosilane is prepared from 1-chloro-1-propenyl trichlorosilane using isoquinoline.  Vinyl copolymer.-Alkynyl trichlorosilanes, e.g. 1-propynyl trichlorosilane may be copolymerized with vinyl compounds such as butadiene, styrene, vinyl acetate and vinyl chloride, with the aid of the usual catalysts such as benzoyl peroxide