baber/WOPTO huggingface dataset:
Patent GB-980797-A (GB)
Title: Automatic vehicle operating system
IPC: B61L3/22
Filed: 1962-03-19
Abstract: 980,797. Automatic train control systems. WESTINGHOUSE AIR BRAKE CO. March 19, 1962 [April 10, 1961], No. 10333/62. Addition to 980,707. Heading B7N. In a modification of the automatic train control system described in the parent Specification, the co-operating train and track coils which signal the entry and exit of a train into and from a block section are replaced by a continuously operated carrier frequency transmitter 2CT on the train which supplies a signal modulated by a first tone in unit 2C1TT to aerial FANT at the front of the train and a signal modulated by a second tone in unit 2C2TT to aerial RANT at the rear of the train, the aerials couple to the block conductors and receive equipment is provided at each location, e.g. carrier receive apparatus R2C5 and associated tone receivers R2C1T5 and R2C2T5 at location 5, connected to the block conductor at the entrance end of the block. Furthermore, the train control signals from each location, e.g. generator 1CTT5 at location 5, are supplied to the exit end of the preceding block conductor BC4 and in addition to being received on the train are also received at location 4 by carrier receive unit R1C4 and associated tone receive equipment R1C1T4 and R1C2T4 connected to the entrance end of block conductor 4. Each location train control transmitter, e.g. 1CTT5, is capable of providing a No. 1 lowspeed tone, a No. 2 stick relay control signal and a No. 3 high-speed tone. Tones 1 and 3 are used for train control in the manner described in the parent Specification and tones 1 and 2 received at the entry end of a block are used, with the two tones received from the train when present, to determine the train control tones to be applied to the preceding block. With a train in block TS5, relays 2C1TR5 and 2C2TR5 associated with train tone receivers R2C1T5 and R2C2T5, respectively, are picked up, stick relay 5SR is released so that tone 2 only is applied to block conductor 4 and any train in block TS4 is controlled to a halt. With a train in block section TS6 (not shown) tone 2 only is received at location 5, relay 1C2TR5 and hence stick relay 5SR are picked up and tone No. 1 (slow speed) is applied to block conductor 4. With a train in block section TS7 (not shown) tone No. 1 is received at location 5, relay 1C1TR5 picks up and since stick relay 5SR is held by its stick circuit both tones No. 1 (low speed) and No. 3 (high speed) are applied to block conductor 4.
Patent GB-1359598-A (GB)
Title: Device for sealing containers having an eccentrically located  pouring spout
IPC: B65B7/28
Filed: 1972-03-06
Abstract: 1359598 Sealing eccentric spouts OCME OFFICINA COSTRUZIONI MECCANICHE EMILIANA Srl 6 March 1972 [6 March 1971] 10414/72 Heading B8T A machine for automatically applying closures to eccentric spouts on containers operates in response to microswitches triggered by the positioning of the container 13 and by the location of the spout 12 by a sensor 25, the process being electronically controlled by means including logic circuits. Container 13 with its eccentric spout 12 is brought on a conveyer 15 beneath a motive unit 1 which is suspended on a chain 2 and rotates the shaft 10 carrying the sensor 25. The container when in position, strikes a microswitch 16 causing the motive unit 1 to be lowered by an hydraulic jack 6 through the required distance governed by a timer actuated by the disengagement of a peg 45 on gear 3 from microswitch 14. When motive unit 1 is lowered it rotates the shaft 10. Arms 11 on the shaft 10 center the container coaxially with it. The rest and fully deflected positions of the shaft 10 are defined by the engagement of a stirrup 17 on the shaft with microswitches 18, 46 respectively, carried on a fixed bar 9. If the sensor 25 does not locate a spout in one revolution of shaft 10 the engagement of the microswitch 46 stops the operation. The sensor 25 consists of a spring-loaded bar 28 which carries an arm 32 terminating in a half ring 33 situated at a distance from the shaft 10 equal to the distance of the spout 12 from the shaft. When the half ring 33 engages the spout, a bar 28 is urged against a spring 29 and a slider 27 on bar 28 is disengaged from microswitch 30, stopping rotation of shaft 10 and initiating the lowering of screwing device 37, by hydraulic jack 34 mounted on frame 22 on stirrup 17, on to spout 12. Screwing device 37 is coaxial with half ring 33, and carries a stopper 39 into spout 12. It is operated for an interval governed by atimer actuated by the disengagement of microswitch 30. After this interval, the screwing device 37 is raised, and jack 6 is actuated to lift unit 1 until microswitch 14 is engaged. Then shaft 10 is rotated back to its rest position defined by the engagement of microswitch 18, and a new stopper 39 is provided for screwing device 37 by arm 41 from store 40. In a modification, Figs. 7-10 (not shown) screwing device 37 is replaced by a device (302) that applies a sealing capsule over spout 12.
Patent GB-867754-A (GB)
Title: Engine tachometers
Inventor: WRIGHT MAURICE JAMES
IPC: G01P3/48
Filed: 1959-03-26
Abstract: 867,754. Engine tachometers. LUCAS (INDUSTRIES) Ltd., JOSEPH. March 1, 1960 [March 26, 1959], No. 10509/60. Addition to 843,152. Class 40 (1). [Also in Group XL (c)] In an arrangement of the kind described in the parent Specification, in which impulses from the primary side of the ignition circuit of an I.C. engine shaped by a Zener diode 2 charge a capacitor 14 which discharges in the intervals between impulses through a measuring instrument 13 to indicate the engine speed, a pair of rectifiers through which the capacitor is charged and discharged respectively is replaced by a rectifier bridge 5-8 so that the meter 13 is also affected by the charging current. As in the parent Specification, highfrequency ripples are suppressed by inductor 1 and the meter may have a set of shunts to adapt the system for different numbers of cylinders.
Patent GB-1394333-A (GB)
Title: Collapsible door
Inventor: LOEVGREN ANDERS
IPC: E06B3/01
Filed: 1973-03-05
Abstract: 1394333 Collapsible Door ALFRED LOVGRENS BYGGNADS AB 5 March 1973 [6 March 1972] 10553/73 Heading E1J A collapsible door suspended from a lintel 9 comprises a flexible sheet 11 carrying spaced horizontal cross-members 12, the lowermost cross-member 12a being connected to a wire 15 which passes freely through the other crossmembers to the lintel 9 where it is connected to a lifting mechanism for raising and lowering the door. Each end of the cross-members 12 may carry one roller engaging in a vertical channel-sectioned guide, Fig 4 (not shown), or it may carry two rollers 27, 33 engaging guides 21, 22. The door preferably comprises two opposed sheets 11 containing a plurality of interconnected, collapsible cells 34 connected to a source of hot air.
Patent GB-241466-A (GB)
Title: A heat insulated vessel and method of manufacturing the same
IPC: A47J41/02
Filed: 1925-04-23
Abstract: 241,466. Terrell, T. April 23, 1925. Cold and heat retaining vessels.- The inner vessel 21 of a vacuum flask is formed at the bottom with a projection or plug 15 which engages in, but does not touch, a socket or depression 17 formed in the outer vessel. Thus the two vessels are in contact at the mouth only, but relative movement between the vessels is prevented except to a limited extent that is insufficient to cause breakage. The plug and socket may take various forms, but in all cases they are coaxial with the vessels. In making the flask, the two blank containers are assembled with the plug and socket in contact. The containers are then fused together at the mouth, and in the subsequent cooling, sufficient shrinkage takes place to separate the plug and socket by the desired small amount.
Patent GB-105892-A (GB)
IPC: D03J5/08
Abstract: 105,892. Wilson Bros. Bobbin Co., and Wilson, T. S. March 2, 1917. Shuttles.-The top spring c of a shuttle peg is sprung into a recess b' in the forward end of the peg and engages a spring d in a recess b<2> in the head of the peg. The invention is shown as applied to shuttle pegs of the kind described in Specifications 7394/09 and 9021/09.
Patent GB-352403-A (GB)
Title: Improvements in fastenings for straps and the like
IPC: A44B11/22
Filed: 1930-04-04
Abstract: 352,403. Buckle fastening for riveted straps. GUEST, Ltd., O. D. and GUEST, J. E., Enterprise Works, Vicarage Street, Walsall. April 4,1930, No. 10685. [Class 43.] A prongless buckle 1, for connecting together a pair of strap ends 4, 5, is attached by its bar 2 to the strap 4, and the other strap 5 is threaded through the buckle and bears projections or studs 6 which engage the other bars 3 of the buckle. Three or more bars 3 may be provided, and two or more studs, the distance between the bars being different from, preferably twice, that between consecutive studs, whereby a plurality of different adjustments is permitted by each stud engaging each of the bars 3. The studs 6, Fig. 4, may be stamped from sheet metal, and have integral attachment parts 7 which are bent under the strap -to hold the stud in position. The heads of the studs may be of spherical, part-spherical, cylindrical, conical, or other form. The straps may be made in two thicknesses, and so the under parts of the studs covered. In wide straps two or more studs may be placed side by side.
Patent GB-274570-A (GB)
Title: Improvements in semi-rotary internal-combustion engines
IPC: F02B53/00
Filed: 1926-04-23
Abstract: 274,570. Geipel, E., and Fugmann, F. April 23, 1926. Fixed-abutment type; working-fluid supply; packing vanes; regulating motors.-A semi-rotary internal-combustion engine has the oscillating piston vane 1 formed on each face with a rib 2 so as to give a reduced compression space. Packing of the vane is obtained by means of T-shaped bars 7 pressed by undulating springs. Each end of the vane shaft 12 has a double-armed lever 11 connected by rods 13 to the crank shaft 14. The piston stroke is varied by adjusting slide blocks 19, to which the rods 13 are pivoted, in slots 18 in the double-armed levers 11. A number of working chambers may be used. The valves 17 are operated by a chain drive 16 from the crank shaft. A spring-pressed sleeve round the shaft prevents leakage where the shaft extends through the casing wall.
Patent GB-900773-A (GB)
Title: Resistors and methods for the manufacture thereof
IPC: H01C7/02
Filed: 1958-07-14
Abstract: 900,773. Semi-conductor devices. SIEMENS & HALSKE A.G. July 14, 1958 [July 15, 1957], No. 10784/62. Divided out of 900,771. Class 37. The subject-matter of this Specification is contained in Specification 900,771 from which it has been divided but the claims relate to a resistor consisting of a ferro-electric tantalate, niobate, mixture of niobates or tantalates, or mixture of niobates and tantalates in which the greater part of the conductivity is contributed by donor (or acceptor) centres so close to the conduction (or valence) band that their activation energy is proportional to the inverse square of the effective polarisibility of the dielectric. At the Curie temperature the number of carriers available from these centres therefore decreases to give the resistor a positive temperature coefficient. The resistor may be used before electroforming as a voltage variable resistor.
Patent GB-226426-A (GB)
Title: Improvements in apparatus for transforming electric currents
IPC: H01M10/42
Filed: 1924-05-01
Abstract: 226,426. Saikawa, S. May 1, 1924. Electromagnetic switches ; boxes and cases.- Apparatus for transforming the voltage of direct currents by changing and discharging accumulator cells comprises a number series-parallelling switches with magnetic contacts enclosed in vacuum tubes, the circuits being arranged as in Fig. 1. The closed switches are opened and the open switches are closed at recurrent short intervals by electromagnetic coils controlled by a. constantly rotating drum switch 40, Fig. 9, through two relays 41, 42. The construction of a " vacuum " switch is shown in Fig. 8. Inside a vacuum tube 24 are two) tubular aluminium electrodes 21, 22 containing bundles of iron wires 30, 31 which constitute stationary and movable cores of an external solenoid 36. The core 31 moves up and down as the solenoid is energized and deenergized, making and breaking contact between plates 32, 33.
Patent GB-811981-A (GB)
Title: Improvements in or relating to the manufacture of capacitors and other electrical units
Inventor: ROBINSON FREDERICK CHETHAM
Filed: 1954-04-13
Abstract: 811,981. Moulding electrical components. HUNT (CAPACITORS) Ltd., A. H. April 13, 1955 [April 13, 1954; June 11, 1954], Nos. 10875/54 and 17276/54. Class 87(2). [Also in Group XXXVI] An electrical unit, e.g. a capacitor, is encased in an epoxy resin, by mounting the capacitor in a two-part polythene mould with its terminal wires extending through grooves 21, filling a runner 19 with a viscous epoxy resin, heating the mould to cause the resin to run into the mould, around the capacitor, and, if there is any excess up the riser 20, and continuing the heating of the mould to set the resin. The parts of the mould are held together by pins and holes 15, 16 respectively. In a modification, Figs. 4 to 6 (not shown), multiple moulds may be used.
Patent GB-375909-A (GB)
Title: Improvements in apparatus for the electric reproduction of gramophone records
IPC: G11B33/06
Filed: 1931-04-14
Abstract: 375,909. Gramophones. VOIGT, P. G. A. H., 53, Church Road, Upper Norwood, London. April 14, 1931, No. 10924. [Class 40 (ii).] A gramophone with an electric pick-up connected to a stationary amplifier and loudspeaker is adapted for movement into any desired position by mounting the motor board at a convenient height in relation to the user's chair on a table or cabinet fitted with a winding device for the flexible leads connecting the pick-up with the amplifier. Fig. 1 shows the motor board 3 in a frame 1 with a glass top 12 and supported on legs with castors 9, shelves 13 being provided for the records. The flexible leads from the stationary amplifier and also those from the electric power supply for the driving motor are wound on spools 14, Fig. 2, on a hollow shaft 15 mounted in bearings 16 in the frame 1. The ends of the leads on each spool are led through the hollow shaft to screws 19 at the respective ends, and these connect through blade springs 18 with terminals 17 when the handle 21 for winding the spools is held against rotation by a spring member 20 engaging a pin on the handle. The terminals 17 are connected to the pick-up and driving motor respectively. The spools are preferably made of metal and connected to the earthed lead to effect screening. According to the Provisional Specification, the machine may be supported on folding or collapsable legs ; may be housed, when not in use, in the cabinet of the stationary amplifier ; and may be fitted with a pieliminary amplifier or a distant control for the radio set employing the stationary amplifier.
Patent GB-557615-A (GB)
Title: Improvements relating to means for the remote indication of the presence of moisture in an atmosphere
IPC: G01N27/04
Filed: 1941-08-28
Abstract: 557,615. Signalling from aircraft; thermionic relay circuits. BRITISH THOMSON-HOUSTON CO., Ltd., RUFF, H. R., and WESTON, R. F. Aug. 28, 1941, No. 10987. [Class 40 (v)] A predetermined amount of moisture or size of moisture or other conducting particles in the atmosphere is signalled, particularly from apparatus operating in cloud formations, by arranging that the decrease of resistance of a normally insulated gap between conductors changes the bias on a thermionic valve or gas discharge tube to cause transmission of high frequency waves or to change the frequency of a normally transmitted wave. As shown in Fig. 1, the reduction of resistance of gap 2, with thermostatically controlled heater 3 as described in Specification 557,614, [Group XX], applies positive bias to the grid of a gas discharge tube 7 normally negatively biased over resistance 5. The striking of tube 7 causes operation of relay 8 which switches in a buzzer 12 operating as a spark transmitter. The relay also connects resistance 17 in parallel with resistance 5 in order to increase current flow over the gap to dry it. The voltage across the gap may be of the order of 100 to produce small sparks in the presence of moisture. After a time delay-action relay 15, which may be thermal, releases relay 8 to restore the circuit. In the modification shown in Fig. 2, the presence of moisture on gap 2 normally connected over contact 26 to the grid of a normally quiescent oscillator 23 reduces the grid bias to cause squegged oscillations. Relay 25 in the anode circuit switches the gap over to low resistance 28 which causes cleansing of the gap and at the same time the oscillator is restored to its normal quiescent state. A further modification, Fig. 3 (not shown), comprises a gas discharge tube, arranged as in Fig. 1, which modifies the circuits of an oscillating valve to change its frequency. Specification 557,613, also is referred to.
Patent GB-237218-A (GB)
Title: Improvements in bourdon tubes for pressure sensitive apparatus and in the manufacture thereof
IPC: G01L7/04
Filed: 1925-04-29
Abstract: 237,218. Schlaich, H. July 15, 1924, [Convention date]. Bourdon pressure gauges. - In a Bourdon tube having several coils of different diameter, the outer coils are made stiffer than the inner coils by the provision of a reinforcement extending lengthways thereof. One end of the usual flattened tube is placed between dies 14, 15, one of which is provided with a longitudinal depression 16 which is opposite a longitudinal rib 17 on the other die. A longitudinal rib is thus formed on the tube and in the preferred form this rib is tapered. The tubing is then wound into a coil, the rib extending from the support around the outer convolutions and rendering these stiffer than the inner convolutions. In a double helical coil, Fig. 6, the strip which is to go into the outer helix 31 is provided with a rib 32 which extends from one end of the coil to the other end, the end convolution having a decreasing diameter to reach to the inner helix 35 to which it is joined. The rib on this convolution is preferably tapered.
Patent GB-1497237-A (GB)
Title: Production of vinyl chloride polymers
IPC: C08F14/00
Filed: 1976-03-19
Abstract: 1497237 Stabilizers for suspension polymerization KURARAY CO Ltd 19 March 1976 [24 March 1975] 11240/76 Heading C3P Vinyl chloride is homo- or copolymerized in aqueous suspension using a suspension stabilizer which is a polyvinyl alcohol having a degree of saponification of 60-90 mole per cent and a solubility in methanol index (see below) at 55‹ C. of 10-60%, the PVA being such that it does not flocculate out of a 0À1% aqueous solution under the shearing stress of stirring at 30-65‹ C. The PVA is preferably one which has been prepared by polymerizing vinyl acetate at a rate of polymerization of at least 80% in the presence of a ketone or aldehyde chain transfer agent, hydrolysing the product with alkali in the presence of methanol and methyl acetate at 20‹ C. and drying the thus produced PVA.
Patent GB-1004249-A (GB)
Title: Purification of acrylamide or methacrylamide
IPC: C07C233/09
Filed: 1963-03-21
Abstract: A process for purifying acrylamide or methacrylamide comprises heating the amide above its melting point, vaporizing the melted amide, and contacting amide vapours with a collecting liquid at a temperature below the melting point of the amide, the collecting liquid being non-reactive with the amide and having limiting solubility for it at the contact temperature used; the amide is condensed as a solid in the collecting liquid.  The melted amide may be heated under reduced pressure, and the vapour contacted with the collecting liquid at below 50 DEG  C.  Suitable collecting liquids are hydrocarbons such as benzene, toluene, xylene, aromatic petroleum distillates, or alkanes (including gasoline and kerosene), chlorohydrocarbons such as ethylene dichloride, trichloroethylene and trichloroethane, esters such as ethyl, butyl and amyl acetate, butyl propionate and dimethyl phthalate, ketones such as methyl ethyl, methyl isobutyl and methyl hexyl ketone, and alcohols such as butyl, isobutyl and isodecyl alcohol.  A polymerisation inhibitor may be added to the crude amide.
Patent GB-1016947-A (GB)
Title: Shellac polymer and process of producing same
IPC: C08F2/22
Filed: 1964-03-17
Abstract: A copolymer of 2-30% shellac treated with a base and 70-98% of styrene, alpha-(methyl or chloro) styrene or a halo, nitro, methyl or ethyl nuclear substituted derivative thereof and/or butadiene - 1,3 - isoprene, chloroprene, pentadiene-1,3 or piperylene may be produced by copolymerizing the monomers in an aqueous alkaline solution of shellac as the sole emulsifier at a pH of 6.5-8.3 and in the presence of a free radical initiator. The shellac may be bleached and dewaxed and treated with ammonia or borax as the base.  The copolymer may be a terpolymer of 2-30 parts of the above shellac, 10-90 parts of styrene of the above derivatives and 90-10 parts of the above diolefins and the foregoing monomers may also be polymerized with isopropenyl ketone, divinyl benzene, acrylonitrile, vinylidene chloride or an alkyl acrylate or methacrylate.  The polymers may be dispersed in water.  The free radical initiator may be potassium persulphate.
Patent GB-558241-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/88
Filed: 1942-08-13
Abstract: 558,241. Cathode-ray tubes. CINEMA-TELEVISION, Ltd. (Szegho, C. S.). Aug. 13, 1942, No. 11356. [Class 39 (i)] A cathode ray tube 1 having a glass window 5 through which can be viewed or projected an image traced on a fluorescent screen 4 by an electron beam which strikes that side of the screen facing the window, has conductive material 6 arranged in or adjacent the window and maintained at a definite potential for the purpose of preventing the window from acquiring charges which would cause undesired deflections of the electron beam. Thus the conductive material may be maintained at the same potential as an inner conducting coating 7 or collecting electrode of the tube, and must be of such a nature that it does not interfere seriously with the viewing or projection of the image. The conductive material may be in the form of a grid or mesh of metal strips or wires incorporated in the window, or arranged on the inner surface thereof ; alternatively, the interior face of the window may have a coating of a metallic fluoride of such a thickness that it reduces light reflections from the window and does not absorb a large proportion of light from the fluorescent screen. In the construction shown, a conductive grid 6 is formed by depositing on the window a continuous graphite or metallic coating, the greater part of which is subsequently removed by ruling.