baber/WOPTO huggingface dataset:
Patent GB-640558-A (GB)
Title: Improvements in or relating to protective coatings for electrical cables
Inventor: WARNER ARTHUR JAMES
IPC: C08L67/00
Filed: 1948-05-26
Abstract: A composition for use as the flexible jacket of an electric cable comprises a polymer of vinyl chloride or a copolymer of vinyl chloride and vinyl acetate, together with a polyester of propylene glycol and sebacic acid as plasticizer and 5-25 per cent by weight of a copolymer of acrylonitrile and butadiene. Suitable proportions for such a composition are: ..Per cent .Polymerized vinyl chloride - -.44 .Polyester of propylene glycol and. .sebacic acid- - - - -.40 .Copolymer of acrylonitrile and buta. .diene - - - - - -.12 1/2 .Stabilizer (basic lead carbonate) -.2 1/2 .Lubricant (stearic acid) - - -. 1/2 .Pigment (lamp black) - - -. 1/2 This composition is stated to retain its flexibility at temperatures down to -55 DEG  C. and at the normal operating temperatures of the cable no detectable migration of the components of the jacket into the cable occurs.  The proportions of the various components may be varied slightly within stated limits, and the lubricant and pigment may be omitted altogether if desired.  Quantities differing slightly from the above are given in the Provisional Specification.
Patent GB-421106-A (GB)
Title: Improvements in or relating to sluice valves
IPC: F16K27/08
Filed: 1934-05-11
Abstract: 421,106. Slide valves. HEIJST & ZONEN, J. B. VAN, 6, Cruquiuskade, The Hague. May 11, 1934, No. 14349. Convention date, May 29, 1933. [Class 135] A sluice valve has lateral apertures closed by covers 17 and 18, the projection of the sealing surfaces of the valve lying within the circumference of the apertures so that the valve body 6 can be removed through the apertures and the valve faces refaced.
Patent GB-216341-A (GB)
Title: Improvements in and relating to sliding and folding partitions and doors
IPC: E06B3/48
Filed: 1923-05-31
Abstract: 216,341. Educational Supply Association, Ltd., and Woolard, H. May 31, 1923. Sliding doors.-Folding sliding doors, such as are described in Specifications 5828/13 and 108,728, are provided with means to enable the door to be folded against the side wall, Fig. 4, without using bent track or arranging the top guide and bottom runners in different planes. The first leaf 2 is hinged to a fixed post 1 set back from the opening, and the second leaf 3 is hinged to the first and to a post 4 which is guided at the top and bottom, e.g. by a pair of rollers and a ball-bearing runner on a bottom rail. The third leaf 5 is hinged to the post 4. The second leaf 3 is longer than the first one to permit of the leaves folding close together. A stop 7 prevents strain in the hinge between the door 2 and post 1. Compressible, tongues 14 and recesses 15 make a weather-proof closure. When a bolt, other than a flush bolt, is provided between two folded leaves the hinges are offset to provide sufficient clearance. Metal bearing-strips may be provided for the top guide, rollers. In outside doors the head beam is protected by a weather board.
Patent GB-1253305-A (GB)
Title: Frequency multiplier and filter units
Inventor: GROVER ERIC HOUGHTON
IPC: H03B19/05
Filed: 1969-03-19
Abstract: 1,253,305. Comb-line filters. STANDARD TELEPHONES & CABLES Ltd. 19 March, 1969, No. 14390/69. Heading H1W. [Also in Division H2] In a frequency multiplier operating at microwave frequencies, an input signal is fed to a varactor diode V directly connected to a first conductive resonator rod 3 of a comb-line filter 1 which passes only the required output frequency to an output lead 12 directly connected, preferably by soldering, to a last conductive resonator rod 6. A triplate choke 2 resonating at the output frequency prevents the output frequency being reflected to the input. The input of 717 MHz is provided by an oscillator matched to the multiplier by a wire L 1  and trimming capacitors C 1 , C 2  having metal end-plates joined by ceramic sleeves. Similar components C 3 , L 2 , C 4  form an impedance transforming filter to match the diode input impedance. Diode V is biased by a resistor R. Choke 2 comprises a shallow copper box (Fig. 8, not shown) having laminated walls and containing two dielectric sheets, one having an inner metallized surface insulated from the box and effectively #/4 long at the output frequency. The metallized surface is soldered to a wire L 3  passing through the choke. Wire L 3  is integral with a socket 31 which receives a terminal post of the diode. The other post of the diode is received in a resilient socket 29 mounted on resonator rod 3. Rods 3-6, each a little less than #/4 at the output frequency, are secured in a sidewall 24 of an earthed metal box formed from a plate 20, a U-shaped member 23, 24, 25 and end walls 26, 27. Tuning screws 8-11 having lock-nuts 28 are provided in sidewall 25. The filter is formed as a unit removable from plate 20 to allow access to the diode. Plates 21, 22 provide support for the other components of the multiplier.
Patent GB-112407-A (GB)
Title: Improvements in Miners' Safety Lamps.
Inventor: SANDBROOK WILLIAM
IPC: F21L23/00
Filed: 1917-10-06
Abstract: 112,407. Sandbrook, W. Oct. 6, 1917. Miners' safety lamps. - An automatic extinguishing device, operated by the melting of a fusible plug on the combustion of fire damp or inflammable gas taking place inside the lamp, is -enclosed within a performed cover or cage 2 arranged within the outer case 5. The cage 2 is rivetted, soldered, &c. to the ring 4, or it may have an out-turned flange which is gripped between the ring 4 and the lamp glass. Specification 13502/93 is referred to.
Patent GB-139707-A (GB)
Title: Improved means for protecting safes and other receptacles against attack by burglars, housebreakers and the like, also applicable for use in protecting loose articles of value
IPC: E05G1/10
Filed: 1919-06-07
Abstract: 139,707. Tibbles, H. J., and Gunn, Ltd., T. June 7, 1919. Burglar and like alarms.-Safes and other receptacles and loose articles of value are protected against burglars by a box or casing having its walls formed of two plies or layers of wood or other material, between which is arranged a bare or insulated wire in zigzag, convoluted, or other form to cover the area of the walls, the wire forming a conductor in a protective circuit of the type having a relay which closes an alarm circuit when the protective circuit is broken. The hinges and fastening of the box door may be also included in the protective circuit, so that alarm is given when the door is opened. The box may be portable and collapsible to facilitate transport, in, for example, a travedling trunk or bag. As shown, the box comprises a chamber E containing the batteries, alarm bell, and relay device. To this are hinged the top, bottom, and walls G, H. B, C, the door D being hinged to the wall C. The protective wire J is shown. The wires in the wall C and door D are connected to contacts K which engage when the door is closed. Fig. 2 shows the box collapsed for transport. A switch is provided to throw the protective circuit into or out of use. Where a number of such casings are in use, their circuits may extend to an indicator of known type in a caretaker's room. Specification 121,713 is referred to.
Patent GB-275938-A (GB)
IPC: H05K7/04
Filed: 1927-05-30
Abstract: 275,938. Flewelling, E. T. Aug. 10, 1926. Condensers.-A multiple conductor 10, Fig. 1, particularly adapted for connecting the component parts of wireless receivers, is built up of a number of metallic strips 1 - - 5, Fig. 2, with interposed leaves 6 and a surround of insulating material. Connecting tabs 7 project from one or both sides of each metal strip and are relatively staggered as shown. Each conductor strip is formed with central perforations 8, Fig. 5, to facilitate assembly. In some cases the marginal tabs 7, Fig. 7, may be bent round into alignment with a central perforation in order to make a neat connection. The grouped conductor possesses sufficient capacity to form a by-pass condenser across the batteries, low-frequency transformers &c. of a wireless receiver, when the corresponding conductive leads are adjacent to each other. In Fig. 11 two of the metallic conductors 4, 5 are interleaved in order to increase the capacity effect between them.
Patent GB-1065212-A (GB)
Title: Improvements in or relating to fluid transmission
Inventor: ROGNER WALTER
IPC: F16H41/22
Filed: 1964-04-09
Abstract: 1,065,212. Hydrodynamic torque converters. WISSENSCHAFTLICH - TECHNISCHESZENTRUM KRAFTWERKS-ANLAGENBAU. April 9, 1964, No. 14619/64. Heading F2C. An output driven pump 4 supplies oil from a sump to a cooling jacket 3 of a turbo converter 1. An input driven pump 5 supplies oil from the sump to turbo converters 1 or 2, through means which are not shown, and to a lubricating system. The pressure produced by pump 5 positions a valve 8 so that liquid discharged from the cooling jacket returns to the reservoir through a pipe 12. If the input side of the transmission is not driven, as, for example, when used in a vehicle which is on tow, the valve 8 directs the liquid from the jacket through a pipe 11 to the lubricating system.
Patent GB-438576-A (GB)
Title: Improvements in or relating to cover plates for electric switches
IPC: H02G3/14
Filed: 1935-05-20
Abstract: 438,576. Switch covers. BAIN, R., 25, Beaudesert Road, Handsworth, Birmingham, and ALLDAY, N., The Nest, Streetly Lane, Four Oaks, Warwickshire. May 20, 1935, No. 14645. [Class 38 (v)] A cover plate for an electric wall switch comprises a main portion 7 of mouldable material such as synthetic resin in which a metal plate 13 is embedded. The metal plate may be bevelled at its edges 15 and may be cut away as at 14 to form stencils of any desired form to constitute lettering &c., the mouldable material 7 entering these cut - away portions. The plate is held in position by an insulating ring 11, 12 which is screwed on to the usual dolly housing.
Patent GB-932759-A (GB)
Title: Improvements relating to meters for measuring electrical quantites
Inventor: HOFFMANN HORST
IPC: G01P3/484
Filed: 1962-04-16
Abstract: 932,759. Counters for electric meters. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. April 16, 1962, No. 14647/62. Class 37. [Also in Group XIX] An electric meter comprises a rotor 1 having two driving discs, means (not shown) for rotating the rotor in accordance with an electrical quantity to be measured, a permanent magnet 7 rotated through gearing 9, 10 and a shaft 6, and a switch 4 actuated by the magnet to produce pulses in a telemetering circuit (not shown) at a rate proportional to the speed of the rotor. The switch is mounted on a frame 2 for the instrument which is made of magnetizable material, e.g. iron, and the switch is located on the side of the frame remote from the rotor and its driving means, whereby it is substantially free from stray magnetic fields. The gearing 9, 10 may be of crown, bevel, or worm type. The electrical quantity to be measured may be such that either the speed of rotation or the angular displacement of the rotor correspond with that quantity.
Patent GB-329500-A (GB)
Title: Improvements in or relating to liquid dashpots for use with weighing apparatus
IPC: G01G23/08
Filed: 1929-05-11
Abstract: 329,500. Avery, Ltd., W. & T., and Sykes, C. M. May 11, 1929. Dashpots. -A liquid dashpot for use with weighing - apparatus is automatically sealed against the escape of liquid when the apparatus is removed from a counter or other support and is automatically restored to its unsealed and operative position when the apparatus is replaced on the counter. Fig. 1 shows the dashpot in its unsealed but operative position. The moving part of a weighing-machine is connected to the upper end of the piston rod 11, the lower end of which carries a piston working in a cylinder 6 containing liquid. The part 5 of the weighing-machine has secured thereon a guide 3 for the cylinder 6, a coiled spring 7 being interposed between the flange of the guide and the flange 6<a> on the end of the cylinder. When the scale is rested upon a counter 8 or other supporting, surface, the spring 7 is compressed and the cylinder is raised to the operative position shown. When the scale is removed from the counter, the spring moves the cylinder downwards until the shoulder 11<a> on the piston-rod engages the resilient sealing-washer 10 which is held in position by the cover 9. Specification 301,600 is referred to.
Patent GB-209670-A (GB)
Title: Improved means for supporting tyre-building forms or cores
IPC: B29D30/00
Filed: 1923-06-05
Abstract: 209,670. Marks, E. C. R., (Fisk Rubber Co.). June 5, 1923. Tyres, elastic, special apparatus for making.-A tyre-building core 22 is detachably clamped between flanged rings 17, 20, the ring 17 being secured (permanently or otherwise) to a. disc 13 rotatable on a shaft 10 which is adjustably supported in a bracket 11. The ring 20 is held in its operative position by clamps 24 which are rocked about set-screws 23 by hand-screws 30. The screws 23 pass through slots in the clamps, springs 27 being fitted under the clamps which are moved radially inwards when released by means of the screws 30 to free the ring 20 and core 22. The latter may be used for the vulcanizing process and, to permit of expansion, is preferably formed of rubber or other flexible material.
Patent GB-102247-A (GB)
Title: An Improved Automatic Cable Stopper for use with Winches and Winding Drums.
Inventor: HOCHON PAUL LOUIS
IPC: B66D5/16
Filed: 1916-01-18
Abstract: 102,247. Hochon, P. L., and Gjorgjevitch, N. Jan. 18, 1916. Self-sustaining gear.-A cable stopper particularly for use with winches of the type described in Specifications 14664/15 and 102,169 comprises a block 27 carrying a pivoted spring-actuated jaw 28 and slidably mounted on a rod 26.
Patent GB-290983-A (GB)
Title: Improvements in shock absorbers for the springs of motor vehicles and the like
IPC: F16F9/38
Filed: 1928-05-21
Abstract: 290,983. Picco, A. May 20, 1927, [Convention date]. Addition to 216,808. Fluid - friction vibrationdampers; pneumatic springs.- Apparatus disclosed in the parent Specification and having flow and one way passages for the flow of liquid is provided with a bye-pass having a plunger slidably mounted in the piston rod and controiled by a flexible transmision by the driver of a vehicle to which it is fitted. A cylinder 5 is connected by a flexible joint including rubber buffers 6 to the axle of a vehicle and a piston rod 2 is similarly connected to the frame. A one way lift valve 11 controls passages 3<1> in the piston 3, The leakage grooves 5<1> in the cylinder walls are 'tapered to give increasing resistance to separation of the frame and axel. The hollow piston rod contains a column of air forming an elastic cushion, the cylinder being filled with liquid. Leakage holes 2' in the lower end of the piston rod are controlled by a plunger 12 which is forced down by a spring 13a and is raised by a rod 13 passing through a stuffing box 18 in the upper end of the piston rod. The rod 13 is adjusted by a flexible member 19 controlled by the driver. The piston rod 2 passes through a stuffing box 14, and any liquid leaking past the stuffing box is tapped by a rubber sleeve 15 and is returned to the cylinder past spring-controlled ball valves. A tubular casing 16 fixed to the piston rod slides on a plug 10 secured to the cylinder; if elastic packing is provided on the plug 10, the rubber sleeve may be omitted.
Patent GB-762859-A (GB)
Title: Improvements relating to two-state electrical circuits employing transistors
Inventor: INGHAM WILLIAM ELLIS
IPC: H03K3/26
Filed: 1953-05-29
Abstract: 762,859. Electronic counting-apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 24, 1954 [May 29, 1953], No. 14953/53. Class 106 (1). [Also in Group XL (c)] In a regenerative circuit switched from one state to another by negative pulses a unilaterally-conducting coupling is arranged from the pulse source to the emitter for effecting switching from the high to the low conductivity state. A coupling is also arranged from the source to the base to allow the state of the circuit to be reversed; the emitter being tied to earth over a capacitor. Assuming the circuit to be in the off or low conductivity state, diodes 16, 13, Fig. 1, conduct to maintain the emitter and base near earth potential, Fig. 3 c, d. A trigger pulse 5, Fig. 3 a, from source 7, fed over its internal impedance 8, terminal 3, Fig. 3 b, is applied over capacitor 10 and resistor 12 to the base 9 carrying its negative so that diode 13 ceases to conduct. The emitter is held near earth momentarily by capacitor 17 which charges rapidly when the transistor passes to the on condition. The triggering pulses is not applied to the emitter due to diode 4 ceasing to conduct, but when the emitter falls in potential the diode conducts again. The succeeding triggering pulse 6 causes the diode 4 to cease conducting and the transistor passes to the off state. The waveform at the emitter is differentiated over capacitor 19 and resistor 18 to feed the next stage in a counting chain, the positive pulses being suppressed by a diode corresponding to diode 16. Ir a modification, Fig. 2, the output waveform is differentiated by capacitor 29 and the resistors 26, 27 of the succeeding stage. In the off state, the base is held near earth due to diode 28 conducting and passing currents through a low-valued resistor 27. A negative pulse on terminal 3 takes the base potential negative with respect to the emitter and the transistor passes to the on state. The next pulse cuts off diode 4 but is ineffective across diode 28 since it is biased off and the transistor relaxes to the off condition. Reference has been .directed by the Comptroller to Specification 713,359, [Group XL (c)].
Patent GB-1186692-A (GB)
Title: Method for Measuring Steel Hardness
IPC: G01N27/80
Filed: 1967-03-31
Abstract: 1,186,692. Electro-physical measurementhardness. YOUNGSTOWN SHEET & TUBE CO. March 31, 1967 [Sept. 14, 1966], No. 14992/67. Heading G1N. The hardness of a moving steel strip 16 is determined from a measure of the residual flux density in the strip measured by probe 7 downstream from a D. C. electromagnet 9 producing a field sufficiently strong to saturate the strip. It is found that the Rockwell hardness M is given by M = k'G + k" where G is the residual flux density and k' and k" are constants. The output E1 from the probe is combined with a constant voltage signal E2 and fed to a meter calibrated in hardness units.
Patent GB-266663-A (GB)
Title: Improvement in alternating current vapor electrical devices
IPC: A61N5/06
Filed: 1926-06-15
Abstract: 266,663. Hanovia Chemical & Manufacturing Co., (Assignees of Anderson, W. T.). Feb. 23, 1926, [Convention date]. Vapour apparatus, arrangements of; inductances.-A quartz mercury vapour lamp B, Fig. 4 emitting ultraviolet rays for use in therapy, chemistry, &c. is supplied from an A.C. source through an auto transformer 20 having on its primary side variable reactances 33, 36 and on its secondary side a reactance 30 having a solid core of iron or a material in which iron predominates in order to avoid buzzing noises in operation. The reactance 33 is provided with a slidable core 34 and is connected to a movable contact ring on the reactance 36. The transformer and reactances are housed in a ventilated chamber 14, Fig. 1, supported on a base comprising radial arms 10 fitted with castors 12. The lamp is carried in a shade 24 adjustably mounted on a slidable rack 22 pivotally secured to a standard 13 mounted on the base of the structure.
Patent GB-565175-A (GB)
Title: Improvements in and relating to the hydrogenation of dihydropyrans
Filed: 1941-11-24
Abstract: Dihydropyrans are hydrogenated to tetrahydropyran by treatment in the vapour phase with hydrogen at raised temperature in presence of a hydrogenating catalyst, e.g. a metal of the 8th Group (iron, nickel or cobalt) at 100-300 DEG , or metals of Group I at a higher temperature.  In an example, 1 : 2-dihydropyran is hydrogenated at 230 DEG  using a nickel catalyst on pumice.
Patent GB-990511-A (GB)
Title: Improvements in milling cutters
IPC: B23C5/24
Filed: 1964-04-13
Abstract: 990,511. Milling-cutters. H. GARIH. April 13, 1964 [Feb. 21, 1964], No. 15150/64. Heading B3K. A milling cutter comprises a shank 10 screwing into an annular body portion 1, the body having slots 2 and the shank being conically tapered (14) to provide seatings for cutting tips 15. The tips are clamped by wedge-headed screws 17, the nuts 21 on which, when unscrewed, abut on a face 14<SP>1</SP> and eject the wedges. The conical portion 14 may project outwardly, in which case it is screwed on to the shank after assembly of the body and shank. Each wedge-head has a recess 22 to assist in chip removal.
Patent GB-1346497-A (GB)
Title: Disc brakes
IPC: F16D65/54
Filed: 1971-05-17
Abstract: 1346497 Spot-type disc brakes AISIN SEIKI KK 17 May 1971 [15 May 1970] 15201/71 Heading F2E In an hydraulically actuated opposed pad disc brake, the pads are located by pipes and links extending, from a rigid non-rotating part, axially over the disc each have a flat surface for slidably guiding one friction pad which is remote from a slave cylinder for counteracting torque therefrom, the disc being removable in the axial direction without causing displacement of the limbs. A floating caliper 17, with integral cylinder 18, is axially slidable within the rigid part 11 and extends between the limbs 34, 35. Axially disposed J-shaped pins 38, 39 support the pads 26, 28 against radial displacement, and each pin is located at one end in each of the limbs 34, 35 and at the other end in the part 11. The caliper 17 is supported on the part 11 for axial sliding by bolts 22, 23, Fig. 1 fixed to the part 11 and sliding in holes in the caliper, or S- shaped resilient straps 42, 43, Fig. 7, or extensions of the pins 38, 39 passing through holes 45 in the caliper and enclosed in a rubber sheath 47. The straps 42, 43 may be non-elastically deformable to compensate for pad wear.,
Patent GB-917811-A (GB)
Title: A method for inhibiting the formation of acetaldehyde in a solution of vinyl acetate in an alcohol
IPC: C07C69/01
Filed: 1961-04-27
Abstract: A method for inhibiting the formation of acetaldehyde in a solution of vinyl acetate in an alcohol during polymerization of the vinyl acetate, comprises adding to the solution an aliphatic or aromatic polycarboxylic acid, or a mono- or polycarboxylic acid substituted by a hydroxyl, amino or nitro group, or an alkali metal salt of one of these acids.  From 5 to 50 parts of the acid, or from 5 to 10 parts of the salt, are added per million parts of the solution.  The polyvinyl acetate obtained may be hydrolysed to polyvinyl alcohol. In examples solutions of vinyl acetate in methanol and ethanol are stabilized with oxalic acid, citric acid, sodium citrate, nitrilo-tri-acetic acid, o-nitrobenzoic acid, phthalic acid, tartaric acid, sodium tartrate and ethylenediamine tetra-acetic acid, the vinyl acetate is polymerized using p  a -a 1-azo-bis-isobutyronitrile and acetylperoxide as initiators, and the polyvinyl acetate is hydrolysed to polyvinyl alcohol with sodium hydroxide.  Other inhibitors mentioned are malonic acid, succinic acid, maleic acid, glycollic acid, lactic acid, glyceric acid, malic acid, salicylic acid, aminoacetic acid, glutamic acid, imino-di-acetic acid and nitro-acetic acid.ALSO:A method for inhibiting the formation of acetaldehyde in a solution of vinyl acetate in an alcohol comprises adding to the solution an aliphatic or aromatic polycarboxylic acid, or a mono- or polycarboxylic acid substituted by a hydroxyl, amino or nitro group, or an alkali metal salt of one of these acids.  From 5 to 50 parts of the acid, or from 5 to 10 parts of the salt, are added per million parts of the solution.  In examples solutions of vinyl acetate in methanol and ethanol are stabilized with oxalic acid, citric acid, sodium citrate, nitrilotriacetic acid, o-nitro-benzoic acid, phthalic acid, tartaric acid, sodium tarrate and ethylenediamine tetra-acetic acid.  Other inhibitors mentioned are malonic acid, succinic acid, maleic acid, glycollic acid, lactic acid, glyceric acid, malic acid, salicylic acid, aminoacetic acid, glutamic acid, imino-di-acetic acid and nitro-acetic acid.