baber/WOPTO huggingface dataset:
Patent GB-1423327-A (GB)
Title: Gripping pincers
IPC: B25B7/14
Filed: 1974-07-10
Abstract: 1423327 Gripping tools FACOM 10 July 1974 [20 July 1973] 30663/74 Heading B4W A toggle operated pincer tool has a toggle link 19 which is adjustable in length to vary the gripping position and/or gripping pressure of the jaws 5, 6. The pivotable jaw 5 may also be pivoted in any of a series of pivotal positions 9a ... 9d. A locking pin 32 for the toggle is pivotally mounted on a toggle lever 17 and in the position shown bears against a nose portion 33 of the adjustable link 19 to lock the toggle; a recess 34 in the locking pin allows passage of the link 19 when pin 32 is pivoted to its other position. Co-operating holes in the fixed and movable jaws may be provided to form wirecutting means. The adjustable-length link may carry an axially adjustable sleeve, 137 (Fig. 14) of varying diameter which can be used to vary the closed position of the toggle mechanism. The toggle lever 115 (Fig. 14) may also carry a projecting nose 159 so that the pivotable jaw 105 and lever 115 may become in effect an integral lever movable by extension of the link of adjustable length; for this purpose a hexagonal portion 130 (or alternatively radial holes for reception of a lever rod) may be formed on the adjustable link. A through hole 158 in the main lever of the tool provides for transverse leverage of the tool by means of an inserted bar (Fig. 13, not shown). The link of adjustable length may carry visual indicia (e.g. Figs. 5, 6, not shown) or other means for providing some measure of the extension of the link. The screw threaded portion of the adjustable link may have threads of large pitch for rapid adjustment and means provided for locking the link in its adjusted position when under load i.e. to prevent shortening of the link due to the load. The fixed jaw may carry a second set of serrations (Fig. 7, not shown) to provide three-point contact with an article to be gripped. The ends of the main and toggle levers may be provided with a hook and pivoted latch so that, e.g. the tool may be used for lifting purposes (Fig. 15, not shown). The tool may be made of cast or forged steel or pressure-cast aluminium alloy.
Patent GB-1520376-A (GB)
Title: Windshield wiper refill unit
IPC: B60S1/38
Filed: 1976-07-22
Abstract: 1520376 Windscreen wipers ANDERSON CO 22 July 1976 [28 Oct 1975] 30671/76 Heading A4F A windscreen wiper unit comprises a flexible wiping element 16 having opposed longitudinal grooves 62, 64 separated by a web 45, and a resilient backing strip 18 having a longitudinal slot 36 receiving the web 45, the sides of the slot tapering inwardly towards the mid portion 44 of the backing strip so as to securely grip the mid portion of the web 45, the outer edges 38, 40 of the backing strip 18, which are parallel before assembly of the backing strip to the wiping element, being urged outwardly by the mid portion of the web 45 so as to securely engage claws 30 of a harness arrangement. As shown the claws 30 are secured to the backing strip 18 by engaging in notches 34 in the legs 46, 48 of a resilient U-shaped clip 32, a turned down tab 60 at the end of the backing strip engaging in opposed notches 54, 56 of the clip.
Patent GB-519491-A (GB)
Title: Improvements in secateurs
IPC: A01G3/02
Filed: 1938-10-24
Abstract: 519,491. Secateurs. WALKER, B. J. Oct. 24, 1938, No. 30689. [Class 30] In draw-cut secateurs with a blade 3 carried between cheeks 2 of one member pivoted between side cheeks 4 of the other member, the pivot 7 is secured against rotation within cheeks 4 but rotates within a hard metal bush 8 fitted in the pivot apertures in cheeks 2. The pivot shown is a bolt having a rectangular boss 9 fitting a similar aperture, the bush being retained between boss 9 and a boss 10 'formed on the nut 11.
Patent GB-947044-A (GB)
Title: Improvements relating to swivel joints
Inventor: PALMER BERTRAM JOSEPH
IPC: F16D3/38
Filed: 1959-09-09
Abstract: 947,044. Stuffing-box substitutes. B.R.D. CO. Ltd. Sept. 8, 1960 [Sept. 8, 1959], No. 30726/59. Heading F2B In a Hooke's type universal joint comprising a journal 11, Fig. 1, supported on needle rollers 12 in a bearing cup 13, a ring 20 of deformable and resilient material, e g Neoprene, is compressed between the journal and the rim 14 of the cup, the journal and the rim being formed with inclined surfaces by means of which an inwardly directed force is applied to the ring 20 to assist sealing between the ring and the journal. The ring has a parallelogram crosssection, Fig. 3, in the uncompressed state. A metal guard ring 17 may be interposed between the ring and the shoulder.
Patent GB-710849-A (GB)
Title: Improvements in bells
IPC: G10K1/074
Filed: 1952-12-04
Abstract: 710,849. Cycle bells. ANCIENS ETABLISSEMENTS P. MAURY. Dec. 4, 1952 [Dec. 4, 1951], No. 30763/52. Class 13. In order to prevent unwanted noise, the strikers which are loosely mounted on a rotative member are acted upon by a spring-loaded vibration-deadening device. The strikers are rings 14 co-operating with a projection 15 on the dome 2 and loosely fitting over hollow projections 16 on the member 13 which is rotated by a lever 7. A ring 19 passing through slots in the projections 16 is held by springs 21 in frictional engagement with the strikers 14. All parts are alloy castings, the pivot pins 3, 6, 10 being integral with the base.
Patent GB-1336785-A (GB)
Title: Non-woven fabrics
Inventor: KAMP E A
IPC: D04H1/72
Filed: 1971-07-01
Abstract: 1336785 Lap-forming apparatus; non woven fabrics UNION CARBIDE CORP 1 July 1971 [2 July 1970] 30782/71 Headings D1N and D1R Apparatus for air laying a fibrous mat comprises a planar foraminous collecting surface 12, a suction plenum 14, a stationary horizontal duct 62 disposed across the width of surface 12, the duct having a longitudinally extending slot 64 facing surface 12, on a delivery means surrounding and connected to the duct 62, comprising arcuately spaced rotating vanes 66. The rotation of the vanes causes the fibre suspension to scan the collecting surface 12 and thus deposit a layer of fibres. As shown the collecting surface is an endless belt 12. In one embodiment slot 64 is wider at its upstream end than at its downstream end. The width of slot 64 may be adjustably tapered by a flexible shutter blade (63, Fig. 3, not shown) in order that the delivery of fibres is uniform across the width of the belt. To reach the belt the suspension of fibres passes between the curved vanes 66, which rotate about the axis of duct 62. The curvature of the vanes deflects the suspension in the opposite direction to the deflection caused by the rotation. The deflections may cancel, so that the suspension moves vertically downwards. Alternatively each pair of vanes causes a separate stream of fibres to sweep along the belt. In one embodiment designed to ensure uniform flow velocities the slot is of uniform width but the depth of the channel decreases smoothly to zero as the downstream end is approached. The channel may optionally contain curved louvres 108 pivotable about the opposite sides of the channel, the degree of pivot being controlled by individual rods 114. The fibres may be wood, cotton, regenerated cellulose, asbestos, glass or synthetic polymer. Long staple fibres are separated by the fluffing action of cords, garnetts and opening pickers, whilst sheets of wood fibres are separated by disk grinders and hammer mills. The web may subsequently be treated with binder, printed and/or cut.
Patent GB-618319-A (GB)
Title: Improvements in vapour-containing discharge devices
IPC: H01J17/04
Filed: 1946-10-16
Abstract: 618,319. High-frequency discharge apparatus. M-O VALVE CO., Ltd., HARRIS, N. L., and RYDE, J. W. Oct. 16, 1946, No. 30786. [Class 39 (i)] [Also in Group XL (c)] In a discharge device containing water vapour, one or more electrodes, operating at least periodically as cathodes to one or more further electrodes, are provided with an oxide surface which is reduced by the discharge during operation; this compensates for the oxidation of the further electrodes that normally takes place at the expense of the oxygen component of the water vapour filling, so that the amount of the latter remains substantially constant throughout the life of the discharge device. The device contains a resonant cavity 4, and is connected across a wave-guide 2; glass windows 5 allow the passage of highfrequency energy. A flexible diaphragm 6 carrying a main electrode 7 is actuated by a control member 8. The other main electrode 9 is a hollow cone and surrounds the auxiliary starting electrode 10, carried by a glass cap 12. The electrode 10 may be a copper wire having a surface of cupric oxide, or a tungsten wire coated with lead peroxide applied, with a nitrocellulose binder. Alternatively, one or both of the main electrodes may be initially provided with an oxide surface. The filling is a mixture of argon at 6 mms. pressure and water vapour at 6 mms. pressure, or water vapour alone, or water vapour mixed with hydrogen. The Provisional Specification refers to Specification 594,460.
Patent GB-851638-A (GB)
Title: Process for recovering polymers from aqueous dispersions
IPC: C08J3/14
Filed: 1958-09-26
Abstract: Water-soluble polymers of polymerizable compounds containing the CH2 = C < group may be recovered from aqueous dispersions by processes comprising emulsifying the dispersion in a water-immiscible organic solvent which is a non-solvent for the polymer to form a water-inoil emulsion, blending said emulsion thoroughly with a precipitating agent in amount sufficient to precipitate the polymer as discrete particles, separating the precipitated polymer from the residual fluid and drying the separated polymer, said precipitating agent being at least partially soluble in water, inert to said polymer and in which said polymer is substantially insoluble, and an aqueous solution of said precipitating agent being a non-solvent for the polymer at concentrations up to and including saturation.  Specified polymers are those of acrylamide, acrylic acid and its alkali metal and ammonium salts, and those containing vinyl alcohol and vinyl sulphonate units.  Minor amounts of copolymerized vinylidene compounds. e.g. styrene and substituted styrenes, acrylonitrile and a -alkyland a -chloroacrylonitriles, and acrylic and methacrylic esters, may be present, and many suitable comonomers are listed.  The precipitating agent may be a ketone, alcohol, ester, ether, dioxane, morpholine, glycol ether or glycol ether ester, and examples of suitable agents are given.  The dispersions may be emulsified in aromatic, hydrogenated aromatic, and aliphatic hydrocarbons and aromatic ethers, in the presence of non-ionic emulsifying agents, e,g. polyoxyethylene derivatives and long chain fatty acid esters of polyhydric alcohols, many examples being listed.  Examples describe the recovery of polyacrylamide using (1, 2 and 5) xylene, sorbitan monooleate and methanol, (3) xylene, sorbitan monooleate and diethyleneglycol monomethyl ether, (4) xylene, sorbitan trioleate and methanol, and (6) xylene and methanol and (7) toluene and acetone with the reaction product of triethanolamine and tall oil fatty acids; of acrylamide-acrylic acid copolymers with xylene, sorbitan monooleate and (8 and 11) methanol, (9) methanol with sodium chloride and (10) methanol with sufficient sodium hydroxide to convert the acid groups in the polymer to salt groups, with (18) toluene, sorbitan monooleate and 2-B alcohol, and with the reaction product of ethylene oxide and ethanolamide of tall oil fatty acids and (12) benzene and ethanol and (13) toluene and acetone; of acrylamide-diallyl dimethyl ammonium chloride copolymer (17) with xylene, sorbitan monooleate and methanol; of sodium polyacrylate with (16) xylene, sorbitan trioleate and acetone; and of polyvinyl alcohol with (14) xylene, sorbitan monooleate and methanol, and (15) toluene, reaction product of tall oil fatty acids and triethanolamine and acetone.
Patent GB-212602-A (GB)
Title: Improvements relating to electric cables
IPC: H01B7/14
Filed: 1922-11-10
Abstract: 212,602. Eastern Telegraph Co., Ltd., and Davies, B. Nov. 10, 1922. Modifying circuits to improve transmission.- A telephone cable includes or may wholly consist of a loaded portion embodying two conductors, disposed concentrically about a common axis, and signal currents are caused to proceed and return through the respective conductors. The conductors are formed of two helices C, E wound about a subdivided iron core A, insulating-sheaths B, D being interposed between the core and the adjacent helix and between the two helices. Specification 190,796, [Class 36, Electricity, Conducting &c.], is referred to.
Patent GB-1274068-A (GB)
Title: A motor compressor having a centrifugal oil pump
IPC: F04B39/00
Filed: 1969-06-18
Abstract: 1,274,068. Lubricating. DANFOSS A.S. 18 June, 1969 [20 June, 1968], No. 30842/69. Heading F2A. [Also in Divisions F1 and H2] A motor-compressor comprises a vertical crank-shaft 5, a motor rotor 15 secured to the tubular lower end 21 of the shaft, and a bladed screw impeller 24 fixed inside the tubular lower end so that on rotation of the shaft oil 27 is forced up the tube to lubricate the compressor moving parts and cool the motor windings 18. Some of the oil forced up the tube passes through holes 34 into an annular chamber 35, whereafter it flows upwardly through passages 36 and is flung on to the windings 18 by a shortcircuit ring 20. The flow path of the oil for lubricating purposes and also details of the compressor construction are described in Specification 1,254,956.
Patent GB-632468-A (GB)
Title: Improvements in or relating to single-phase induction motors
IPC: H02K17/04
Filed: 1947-11-21
Abstract: 632,468. Control of A.C. motors. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Nov. 21, 1947, No. 30894. Convention date, Nov. 21, 1946. [Class 38 (iii)] A current relay for controlling an auxiliary primary winding of a dual-voltage singlephase induction motor has its operating coil divided in two sections which are so connected to a main primary winding, also divided in two sections, that the current in one section of the relay coil is the same as that in one section of the main winding and the current in the other section of the relay coil is the same as that in the other section of the main winding. Fig. 1 shows an arrangement to apply high voltage to a capacitor-start motor 5. A running winding 6 is divided in two sections 7, 8 connected in series across the line L<SP>1</SP>, L<SP>2</SP> through a current relay 14. An auxiliary winding 9 dephased with respect to winding 6 is connected across section 8 of winding 6 through a condenser 10, relay contact 15 and section 16 of the relay coil 14. The section 17 of the relay winding carries the same current as section 7 of the motor winding. In Fig. 2 the motor 5 is connected for low-voltage. The section 7, 8 of the winding 6 are now connected in parallel to line L<SP>1</SP>, L<SP>2</SP> and the auxiliary winding 9 is also connected to the line in parallel with the two sections 7, 8 with the relay coil section 16 in series with the winding section 8 and the other relay coil section 17 in series with the other winding section 7. In order to use the same relay in the low-voltage arrangement, the section 16 of the relay 14 must be reversed. The relay is set to drop out at a predetermined motor speed to disconnect the auxiliary winding 9.
Patent GB-798907-A (GB)
Title: Improvements in or relating to photo-electric cells
IPC: H01L31/0216
Filed: 1955-10-28
Abstract: 798,907. Photo-electric cells. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 28, 1955 [Nov. 1, 1954], No. 30895/55. Class 37. A photo-electric cell, particularly for converting solar to electrical energy, comprises at least two zones of P and N conductivity type aluminium antimonide. The thickness of one of the zones is less than the minority carrier diffusion length. A reflection-reducing layer, for example of ethyl cellulose or a vinyl polyester styrene copolymer, may be applied to the surface. Fig. 1 shows an N-type zone 1 with two P-type zones 2, 21. P-type aluminium antimonide results from an excess of aluminium, while N-type results from an excess of antimony. Electrical contacts are made by thin metal layers 5 and 6 ; if desired layer 5 may be in the form of a grid. Energy is supplied to load 7.
Patent GB-1399746-A (GB)
Title: Means of joining
IPC: B29C65/00
Filed: 1972-07-01
Abstract: 1399746 Making tennis balls DUNLOP Ltd 29 June 1973 [1 July 1972] 30923/72 Heading A6D [Also in Division B5] Two parts of a hollow rubber core of a tennis ball are adhesively joined by applying adhesive to at least one of the parts, fitting the parts in a joining tube and pressing the parts together while gripped by radially inwardly projecting, axially oriented ribs or splines on the internal surface of the tube. The parts may be pressed together manually or by plungers. In one embodiment, Figs. 2 and 3, the tube 10 comprises fifteen internal axial projections 11 and grooves 12 with no pair of projections being diametrically opposed. The tube has flared ends 15 to facilitate entry of the parts. The grooves 12 have plain walls 13 and the' projections 11 shaped walls 14. Each wall 14 has an annular groove 18 defining the joining position and located in a central projecting portion 17 between plain portions 16. In another embodiment, Figs. 6 and 7, the projections. 21 are part of a separate insert 23 and are shaped as shown in Fig. 6. The grooves are shaped as shown in Fig. 7. The insert 23 has two external circumferential grooves 26, 27 carrying circlips 28, 29 to spring-load the insert
Patent GB-1522031-A (GB)
Title: Electroacoustic impedance bridges
IPC: G01H15/00
Filed: 1975-07-24
Abstract: 1522031 Making electro-acoustic measurements on the human ear M J BENNETT 22 Oct 1976 [24 July 1975] 30942/75 Heading G1G In an electro-acoustic impedance bridge a variable frequency sound generator is coupled to a probe 50 for insertion into a human ear and to a second probe 52 coupled to an acoustic impedance 70 representing a dummy ear and the signals picked up by microphones 74, 76 responsive to the level of sound in the ear canal and impedance 70, are compared. In Fig. 3, the variable frequency sound generator comprises a D.C. ramp generator 108, started by button 130 and reset circuit 128, a circuit 110 for adding a zero shift equivalent to a starting frequency of 60 Hz, a voltage controlled triangular wave oscillator 102, a diode function generator 104 for forming a sine-wave, a variable gain amplifier 106 controlled by a shift register 120 to vary the amplitude of the applied sine-wave in dependence on its frequency to match the characteristic of a normal ear, and a high impedance loud-speaker 66 connected to the ear 68 and dummy 70 by tubular waveguides 60, 62. The frequency sweep may be interrupted at any time by inhibit means 103 to enable pressure variation tympanometry to be performed. Electret microphones 76, 78 are connected to amplifiers 86, 94; rectifiers 88, 96; and smoothing circuits 90, 98 and to a difference amplifier 92 or divider and indicator and recorder 100. Amplifiers 86, 94 are also connected to a phase detector 132 connected to a recorder 130. In a second embodiment, Fig. 5 (not shown), the amplitude of the applied sound is controlled by a feedback loop responsive to the sound level in the dummy.
Patent GB-1399217-A (GB)
Title: Lightweight ceramic products
IPC: C04B38/06
Filed: 1972-07-03
Abstract: 1399217 Porous ceramics; inorganic substances EMTAN ANSTALT FUR VERFAHRENSTECHNIK 16 July 1973 [3 July 1972] 30945/72 Headings C1J and C1A Porous ceramics containing at least one non- porous zone are obtained from a mix containing synthetic resin particles by removing them with a solvent from the desired zone, and then firing to remove the remaining resin particles. Preferable the mix is extruded, the extrudate grooved to a desired pattern and depth, the grooves supplied with solvent (e.g. CCl 4  or di-Me-frumamide), and the extrudate then passed between rollers which smoothes out the voids and presses out excess solvent. A clay-polystyrene mix is exemplified.
Patent GB-1312085-A (GB)
Title: Counter for a tape record playback mechanism
IPC: G11B15/675
Filed: 1970-06-25
Abstract: 1312085 Tape cassettes SONY CORP 25 June 1970 [30 June 1969] 30948/70 Heading G5R A magnetic tape cassette intended for rented videotapes includes a movable counter 53 carrying indicia and arranged to be operated intermittently by mechanism in the player related to operation of the reel drive. The counter is a ratchet wheel engaged by a pawl 51 driven by a plunger 44 reciprocated once per revolution of a disc 42 carrying a pin 43. The disc is driven via worm gearing 40, 41 from the output shaft 39 of a clutch 32 controlled by a PLAY button 37, the driving shaft 26 being belt-driven 27 from the take-up drive shaft 17. (For Figure see next column.)
Patent GB-798184-A (GB)
Title: Electrophotographic printing
Inventor: GREIG HAROLD GREY
IPC: G03G5/087
Filed: 1954-10-27
Abstract: A pink form of zinc oxide is prepared by heating ammoniated zinc carbonate at 100-400 DEG  C. for 1 to 2 hours until all the ammonia and carbon dioxide have been driven off.  Another form of zinc oxide, which may be red, buff, salmon or brown, results from heating an intimate mixture of white zinc oxide, ammonium carbamate and ammonium acid carbonate at between 150 DEG  and 450 DEG  C. Ammoniated zinc carbonate is prepared by adding white zinc oxide to a solution of ammonium carbonate in 28 per cent ammonia water and blowing in carbon dioxide until no more solid separates.
Patent GB-252116-A (GB)
Title: Improvements in rotary pumps or compressors
IPC: F16J15/18
Filed: 1925-12-09
Abstract: 252,116. Hill Compressor & Pump Co., Inc., (Assignees of Hill, E.). May 13, 1925, [Convention date]. Boxes.-In a rotary pump or compressor of the type described in Specifications 230,241 and 233,423, [both in Class 110 (ii), Rotary engines &c.], with a recess in the casings at the back of the pumping members in communication with a part of the apparatus on the discharge side of the pump, a floating stuffing-box 20 surrounding the shaft is mounted in the recess by means of a flexible metallic packing 25 in the form of a bellows, secured to a cover plate 19 and the head 24 of the stuffing-box. A collar 26 on the shaft 9 is mounted in a thrust bearing 30 positioned between a flange 27 and cap 28 secured to the stuffing-box. By this arrangement, an outward pull on the stuffing-box due to the collapse of the flexible packings 25 under the force of the fluid pressure, is transmitted to the driving shaft and tends to draw the pumping members away from the front wall of the pumping chamber and relieve the friction due to the pressure in the recess action in the opposite direction. Adjustable stops 31 limit the outward movement of the stuffing-box. Instead of a bellows, a diaphragm may be used.