baber/WOPTO huggingface dataset:
Patent GB-442276-A (GB)
Title: Improvements in and relating to firelighters
IPC: C10L11/04
Filed: 1935-09-24
Abstract: 442,276. Firelighters. SIMPSON, J., 128, Allan Place, Motherwell Road, Bellshill, Lanarkshire. Sept. 24, 1935, No. 26483. [Class 50] Wood firelighters comprise four longitudinal pieces a, a, c, c, separated at each end by a transverse piece b and two looking pieces d, each with two recesses or notches which engage with two of the longitudinal pieces so as to hold the structure firmly together. Three additional pieces g, h, k may be introduced at each end. The locking pieces d of soft or inferior wood are applied when the original six pieces are held in a press. Specifications 5506 /06 and 18697/13, [both in Class 50], are referred to.
Patent GB-463257-A (GB)
Title: Improvements in and relating to the automatic speed control of electric motors
IPC: B65H23/04
Filed: 1935-09-25
Abstract: 463,257. Automatic control systems. BRITISH THOMSON - HOUSTON CO., Ltd., and EVEREST, F. J. Sept. 25, 1935, No. 26561. [Class 38 (iv)] Speed; synchronism.-In controlling sections of a machine by means of a loop of material carrying a floating jockey roller or pulley correcting the speed of an electric motor driving a section, a follow-up device is provided operating simultaneously with a pilot motor effecting the correction. The speed of the follow-up device is varied according to its distance from a fixed central position and after correction it is caused to move towards the fixed central position, which corresponds to the normal position of the jockey roller. The roller 2 is geared to a contact disc 7 with four connected contacts. A small chaser motor 19 is adapted to drive a disc 8 having contacts 10 arranged as Fig. 2, to co-operate with contacts 7 and control contactors C1, C2, in the split field circuits of the pilot motor correcting the speed of the motor driving, say, the section in front of the jockey roller. The chaser motor 19 also drives a disc 12 carrying contacts 13 co-operating with tappings on a potentiometer arranged as in Fig. 2, When contactor C1 or C2 is energized to operate the pilot motor PM a circuit is also closed to cause the motor 19 to drive the disc 8 in a direction to follow up the movement of the disc 7 caused by the relative speed change in the section of the machine under control. Should this follow up movement continue, the contacts 13 moving over the potentiometer will progressively vary the speed of follow up. When the follow up movement has de-energized contactor C, or C2 a contactor C3 will be energized and the chaser motor connected across another portion of the potentiometer to cause its reversal. In consequence sufficient over correction of speed is produced to bring back the contacts and roller 2 to the central position. The apparatus operates so that the roller 2 stabilizes at definite positions corresponding to the value of acceleration or retardation applied to the material by the main drive, and at its end position when steady running is resumed. Any suitable means may be used to vary the speed of the chaser motor and the correcting circuits may be established by the relative movement of roll and follow up mechanism by any direct or indirect means, such as a photo-electric arrangement.
Patent GB-1154705-A (GB)
Title: Variable Attenuation Equaliser
IPC: H04B3/14
Filed: 1966-06-15
Abstract: 1,154,705. Equalizer networks. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 15 June, 1966 [22 June, 1965], No. 26622/66. Heading H3U. The invention relates to an improvement in the non-reflecting four terminal network N used in the variable attenuation equalizer, Fig. 1(a), disclosed in Bell System Technical Journal Vol. 17, April, 1938, p.p. 229-244, this network having a characteristic impedance R o  and being terminated at the output side by a variable resistor R a . According to the invention, Fig. 4, the network N consists of a plurality of bridged-T networks connected in chain, the bridging arm of each network, e.g. C 1 R 1 , comprising the parallel connection of a capacitor and resistor and the transverse arm of each network, e.g. R<SP>2</SP> o /R 1  R<SP>2</SP> o /C 1 , being dual to the corresponding bridging arm and comprising the series connection of a resistor and an inductor.
Patent GB-687259-A (GB)
Title: Improvements in and relating to glass-to-metal seals
IPC: C03C27/04
Filed: 1951-11-14
Abstract: 687,259. Glass-to-metal seals. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 14, 1951 [Nov. 15, 1950], No. 26672/51. Class 36. A glass-to-metal seal is made by silver-plating the metal member, applying an indium coating thereover and casting glass into contact with the indium-plated portion. The metal member may be an iron alloy containing nickel and/or cobalt and the glass is one having a matching coefficient of expansion, for example one described in Specification 449,807, [Group XXIII]. After cleaning, the metal is silverplated in two steps, then hydrogen annealed. A thin film of indium is plated on and the member rinsed and dried. The glass-to-metal seal is made by casting the glass as described in Specification 545,426.
Patent GB-198957-A (GB)
Title: Improved process of and apparatus for drying casein curd
Filed: 1922-10-04
Abstract: 198,957. Foster, E. Oct. 4, 1922. Filtering. - In drying casein the raw curd is repeatedly driven, in the presence of heated air, against a plate 11 in a chamber 9, and falls back by gravity to the starting point, until it is sufficiently dry to pass through a screen 12 forming part of the wall of the chamber 9. The dried casein is graded by falling over a screen 22 separating two outlets 24, the powder which is carried by the air current through the exhaust pipe 18a being retained by a silk filtering bag 20. In a modification, the parts 18<a>, 20 are dispensed with, and part of the wall of the outer chamber 10 is formed of silk.
Patent GB-1489846-A (GB)
Title: Peristaltic pumps
IPC: F04B43/08
Filed: 1975-06-24
Abstract: 1489846 Peristaltic pumps LJUNGMANS VERKSTADER AB 24 June 1975 [25 June 1974] 26822/75 Heading F1U A peristaltic pump has a hose 1 of oval crosssection surrounding a circular-sectioned rigid rod 4, the hose being undulated by a plurality of connecting rods 5 reciprocated by a crank-shaft 7, the crank-pins 6 of successive rods being angularly offset by the same amount in each case, and the undulation of the hose causing pockets on either side of rod 4 to be moved from the inlet to the outlet.
Patent GB-631149-A (GB)
Title: Method of forming a die cast screw-thread
IPC: B22D17/22
Filed: 1947-10-08
Abstract: 631,149. Casting-machines; extracting, castings; moulds. PLASCO, Ltd. Oct. 8, 1947, No. 27029. Convention date, Dec. 5, 1946. [Class 83 (i)] Internal screw-threads are die-cast on a continuously - rotating thread - forming core which screws itself out of the formed thread upon solidification of the casting. A bar 18 with threaded core 20 is continuously rotated in bearings 11, 12 on the main frame by a driven shaft 15 via bevel-gears 16, 17 and is yieldingly held in position within the die 26 by a spring 44 and lever 38. The core 20 is located within the die cavity 25 by nuts 23 and a thrust-bearing 24. The casting material is injected from a nozzle 36 through a gate 35 in the die 26 shaped to form an internally-threaded cap 27 with an enlarged portion 31 to receive the upper conical end 32 of a finger 33 pivoted at 34. Upon solidification, the bar 18 is fed outwards against the spring 44 due to the unscrewing action in the formed thread and at the same time the dies are opened to permit the finger 33 to transfer the casting to the trimming station (shown hatched) where the gate 351 and enlarged end 31 are removed.
Patent GB-943437-A (GB)
Title: Improvements in or relating to flexible extension shafts
Inventor: DUFOUR VICTOR FREDRICK
IPC: F16C1/02
Filed: 1961-07-26
Abstract: 943,437. Flexible shafts. A. C. COSSOR Ltd. Oct. 23, 1962 [July 26, 1961], No. 27135/61. Heading F2U. A flexible shaft for use with potentiometers &c. comprises a multi-strand helically wound steel wire shaft 10 with connectors 11, 12 moulded directly on to its two ends, the connectors being formed with non-circular sockets 14, 15 to receive correspondingly-shaped spindle ends. The connectors 11, 12 are made of polypropylene and a sleeve 13 of polyvinylchloride surrounds the shaft 10.
Patent GB-161145-A (GB)
Title: Improvements in pill or like containers
IPC: A61J1/03
Filed: 1920-09-23
Abstract: 161,145. Southwick, M. B., and Vredenburgh, R. W. March 29, 1920, [Convention date]. Void [Published under Sect 91 of the Act]. Contents, delivering; lined boxes.-A container Tor pills &c. comprises a metal tube 7 fitted with a fixed wooden core 14 formed with recesses 18 for the different varieties of pills &c., the tube having a revolving cap or cover 8 turned over at its lower edge 10 to engage a groove 11 in the tube, and having a circular opening 12 which can be made to register with one of the recesses 18. The tube and cover are both lined with paraffined paper &c., and the tube bears external indications or labels showing the kind of pill contained in the recess or compartment with which the opening 12 is registering.
Patent GB-816122-A (GB)
Title: Improvements in electrical measuring instruments
IPC: G01R13/20
Filed: 1956-09-05
Abstract: 816,122. Cathode-ray oscilloscopes; cathode-ray tube operating circuits. MILLS, C. G. Dec. 3, 1957 [Sept. 5, 1956], No. 27165/56. Class 40 (7). A cathode-ray (C.R.) oscilloscope for voltage measurement comprises an input signal attenuator 5 whose output is fed to the control grid of amplifier valve V1which is cathode-coupled by the high-valve resistor 10 to amplifier valve V2, the pushpull circuit output being connected to the C.R. tube Y-plates; the gain of the amplifier increases with increasing supply voltage to give a constant deflection sensitivity. Wiper 8 of potentiometer P is set to give a standard deflection, in conjunction with attenuator wiper 7, and the input voltage value is read off associated dials. Control of Y-shift is afforded by the variation of the standing grid bias on valve V2 by potentiometer 6. The apparatus may be mounted between apertured front and rear plates united by stringers and with the C.R. tube inclined at 20 degrees to the horizontal.
Patent GB-173303-A (GB)
Title: Improvements in the rims of wheels for motor vehicles
IPC: B60B25/20
Filed: 1920-09-24
Abstract: 173,303. Jones, J. R., May, T. J., Thomas, W. J., and Samuel, E. Sept. 24, 1920. Tyre attachments to rims.-The parts A, B of a divisible rim are formed with lugs A<1>, B<1> respectively to engage recessed portions H. Lateral separation of the rim parts is prevented by extensions D on the lugs entering slots K at the ends of the recesses H. Relative circumferential movement of the parts is prevented by the interlocking of the enlarged ends of the lugs C, D on inflation of the tyre.
Patent GB-1096860-A (GB)
Title: Improvements in or relating to mining machines
Inventor: HOUSTON STUART
IPC: E21C27/24
Filed: 1965-06-28
Abstract: 1,096,860. Mining machines. CRAWLEY ENGINEERING DEVELOPMENTS Ltd. June 27, 1966 [June 28, 1965], No. 27255/65. Heading E1F. In a mineral-mining machine in which a chain-hauled cutter drum unit is supported on for traversing along a multi-section scraper conveyer disposed across the front of the machine the endless chain mounted, cantilevered flights move over a loading ramp extending down to the floor ahead of the machine to engage mineral cut down by the drum and carry the mineral along the ramp up into a trough behind and parallel to the ramp for discharge from an opening in the bottom of the ramp. Also described is the cutter drum, which involves sun and planet gearing between a motor within the drum and the drum.
Patent GB-848371-A (GB)
Title: Improvements relating to the suppression of static interference in radio receivers installed in motor vehicles
Inventor: FORTY ERIC ERNEST HARRY
IPC: H04B15/02
Filed: 1958-08-27
Abstract: 848,371. Wheel and axle assemblies. MORRIS MOTORS Ltd. May 12, 1959 [Aug. 27, 1958], No. 27439/58. Class 144 (1). [Also in Group XXXV] To suppress car radio interference arising from brake static, each front wheel of the vehicle is electrically connected to the associated stub axle by means of a resilient spring contact 5 secured to the grease-retaining cap 1 of the wheel hub 2 to bear against the end of the stub axle 3. As shown the contact 5 comprises a spiral spring anchored at one end to the cap 1 by a screw 6 and having its other end 7 projecting axially through the central vent hole 4 in the cap to bear in a centre-punch depression in the axle end. Alternatively the contact may comprise a blade spring having a contact pin to engage the axle end.
Patent GB-260426-A (GB)
Title: Massage exercisers
IPC: A61H15/00
Filed: 1925-11-02
Abstract: 260,426. Duncan, W. Nov. 2, 1925. Massage.-A massage apparatus comprises a roller 1, Fig. 1, adapted to contact with the body of the user at spaced intervals, a tension member or spring 9 having means such as a slip-knot 10 at one end for attachment to a support, and cables 8 connecting the ends of the roller to the tension member so that the roller can be moved to and fro whilst the tension member presses it against the body or limb of the user. The roller is grooved in such a way as to leave ridges b having fairly sharp longitudinal edges, so that the skin is subjected to a puckering and stretching action as shown in Figs. 5 to 7. The roller may be operated from the handles 4 or from the cables 8 as shown in Fig. 1, or from additional cables 12 attached to the ends of the handle. In a modification, Fig. 9, four spaced rollers 15<a> are employed.
Patent GB-1313929-A (GB)
Title: Multiple wedge anchorage device for prestressing tendons
IPC: E04C5/12
Filed: 1970-06-08
Abstract: 1313929 End attachments SOC TECHNIQUE POUR L'UTILISATION DE LA PRECONTRAINTE 8 June 1970 [24 June 1969] 27601/70 Heading D1T A plurality of wires 4 are gripped by a plurality of sectors 6 nesting in a bearing block 2. The sectors 6 have a length L that is at least 50% greater than the height H of the block 2; the angle # of the bearing block 2 is larger than 15‹; the surfaces 11 of the sectors 6 define a frusto-conical formation; and the sectors 6 have opposed grooves 9 in which the wires 4 are held. The angle formed by the outer surfaces of the wedges 6 is between 20' and 2‹ larger than the angle #. The grooves 9 may be roughened by machined serrations or by coating their surfaces with hard particles. (For Figures see next page)
Patent GB-616638-A (GB)
Title: Improvements in or relating to rim brakes for cycle and like wheels
IPC: B62L1/08
Filed: 1946-09-14
Abstract: 616,638. Rim brakes. PHILLIPS & CO., Ltd., J. A., and BOULSTRIDGE, T. J. Sept. 14, 1946, No. 27650. [Class 136 (i)] In brakes for cycles of the kind in which the brake blocks 1 are carried by a U-shaped member 2, the ends of the limbs of which are guided by apertured brackets 4 adjustably secured to the wheel fork 6, the mounting bracket 5 to which the guide bracket 4 is adjustably clamped is formed integrally with or is welded or brazed to the inner side of the fork member 6 of the frame. A headed screw 7 passes through a longitudinal slot 8 in the lower or guide bracket flange and screws into a tapped hole in the mounting bracket flange.
Patent GB-638270-A (GB)
Title: Improvements in or relating to the attachment of upholstery covers, linings and the like to supporting frame members
IPC: B60R13/02
Filed: 1947-10-24
Abstract: 638,270. Securing upholstery. HUMBER, Ltd., and NEWMAN, R. N. Oct. 24,1947, No. 27657/48. Divided out of 638,225. [Class 52 (iv)] Roof lining fabric 2 for a vehicle body or other upholstering material for attachment to a frame is secured by expanding a fold of the material within a gapped tubular frame member by means of a cord 8 inserted by a threading-tool 9 with a narrow shank 10 which can be drawn along the gap in the tube. As shown the rocf-lining fabric is secured to a pivoted listing rail 5 spanning the roof which can be swung to tighten the fabric from its rear edge 4 and then fixed by tack-welding. The side edges can be secured by cords in channelled edges of metal strips screwed to the vehicle body. Specifications 638,225 and 638,271 are referred to.
Patent GB-984216-A (GB)
Title: Ink receptive coated plastic films and methods of making same
Inventor: NEWMAN DOUGLAS ALEXANDER
IPC: B41M5/10
Filed: 1961-08-01
Abstract: A coated sheet for receiving and retaining thereon a pressure-inscribed ink composition comprises a substantially impermeable plastic foundation sheet the surface of which has poor retentive properties for the ink composition, and a transparent honeycombed sponge-like porous coating on the surface of the the sheet which is miscible with the ink composition and has an adherent affinity for the foundation sheet and ink composition, the coating comprising the residue of a coating composition including a film-forming water-insoluble plastic and a liquid medium comprising two mutually dispersible volatile fractions, one of the fractions being a solvent for the plastic and having a rapid evaporating rate and the other fraction being substantially a non-solvent for said plastic and having a substantially lower evaporating rate, the residue being formed by evaporating the liquid medium from the coating composition.  The plastic foundation sheet may be a transparent, translucent of opaque sheet, or a laminated structure in which at least the exposed surface constitutes the plastic material. The sheet may be of, for example, polyethylene terephthalate, vinyl resin or cellulose acetate.  The coating composition may comprise a plastic e.g. a cellulose ether such as ethyl cellulose, a mixture of ethyl alcohol and xylene as the solvent for the plastic, and water as the non-solvent for the plastic.  The plastic may be a polyvinyl acetate and the solvent for the plastic may be ethyl acetate.  The coating composition may also include a plasticizer (e.g. tricresyl phosphate or dibutyl phthalate) which may be compatible and miscible with the plasticizer of the transferable ink composition. The plastic may comprise cellulose acetate in which is incorporated a plasticizer, such as dibutyl phthalate, which may be present in the order of 50% by volume of the cellulose acetate. An image may be inscribed on the dried coating with an ink composition comprising a plasticizer or a plastic material as a vehicle for the colouring matter.
Patent GB-1176295-A (GB)
Title: Improvements in or relating to Resistors and their Manufacture
Inventor: VULLIEZ GEORGES FRANCOIS
IPC: H01C17/26
Filed: 1968-06-12
Abstract: 1,176,295. Resistors. SOC. ALSACIENNE DE CONSTRUCTIONS ATOMIQUES DE TELECOMMUNICATIONS ET D'ELECTRONIQUE "ALCATEL". 12 June, 1968 [12 June, 1967], No. 27911/68. Heading H1S. A process for adjusting thin layer resistors by thermal oxidation comprises heating the resistors in a neutral atmosphere at a constant stabilization pressure lower than normal pressure and at a stabilization temperature at least twice the tended working temperature of the resistors, replacing said neutral gas by oxygen at stabilization pressure maintaining the system at a temperature lower than the stabilization temperature but higher than the working temperature, until the resistance of the thin layers has reached a predetermined measured value when, the oxygen is replaced by a neutral gas and the system is cooled, the resistor having the desired adjusted resistance. The neutral gas may be argon or nitrogen. The resistance value of the thin layer, which may be of tantalum nitride, is adjusted by the thickness of the resistor being altered by oxidation. A system for carrying out the above process incorporates a sealed enclosure 1, plates 5 heated by element 4, thermocouple 6 and temperature indicator 7, said heating and temperature measuring means being interconnected, pressure gauge 15 and vacuum gauge 16, means 8 for continuously measuring resistance of resistors indicated at recording means 9 and means 10 for alternately establishing a vacuum or gaseous atmosphere in the enclosure.
Patent GB-420465-A (GB)
Title: Improvements in or relating to aerial banners
IPC: G09F21/12
Filed: 1933-10-10
Abstract: 420,465. Advertising - banners for aeroplanes. DU PONT, M. S., 20, North 3rd Street, Darby, Pennsylvania, U.S.A. Oct. 10, 1933, No. 27920. Convention date, Oct. 10, 1932. [Class 3 (ii)] In an advertising-banner which is towed behind an aeroplane, letters or the like are fastened on stringers 10 which are spaced by bars 6, 7, 8, 9, the ends of the leading bar being connected to a tow line on the aeroplane by bridle lines 14, 15 so that when the banner is taut and being towed horizontally, the juncture 16 of the bridle lines is at a higher level than the point at which the bridle line 14 is attached to the bar 6. The stringers pass through tubular hems formed on the back of the letters which are of woven silk, canvas or the like, the leading edges of the hems being secured to the stringers. Auxiliary bridle lines 17, diagonal brace lines 21 and aerodynamic resistance elements 22, 23 are provided.
Patent GB-1268112-A (GB)
Title: Improved method of dyeing textiles and in apparatus therefor
Inventor: TAKRITI NASSIR
IPC: D06B11/00
Filed: 1969-06-03
Abstract: 1,268,112. Random dyeing. TEXTILAUSRUSTUNGS GES SCHROERS & CO. K.G. 3 June, 1969 [15 June, 1968; 10 Oct., 1968], No. 28014/69. Heading D1L. Single colour dyed or undyed textile material 10 is passed under dye liquor dispensing means 20, 30 which dye it at random with one or more colours, and dispensing means 41 is subjected to oscillations to disperse the jets of dye into droplets. Dispensing means 20 (Fig. 2) consists of a trough 22 containing dye liquor and a rotatable roller 21, the film of dye liquor accumulating on the roller being drawn off by a blade 27 and dispersed into individual jets 29 by grooves 31, 31' of rounded or V-shaped cross-section. Dispensing means 30 consists of a trough 34 with equal spaced nozzles 35 in its bottom face. Oscillating means for each dispensing means (Fig. 1a) comprises a lower fixed support and an upper movable support. The upper support being attached at one end to the dispensing means and at the other end to a double armed lever whose ends are driven at different speeds. A grid 36 is mounted between the dispensing means and the material and is subjected to oscillatory motion by lever 40 attached to a disc 39 which is driven by an electric motor 38. The apparatus may be enclosed in a steamer with one or two chambers, the material being supported on a plurality of rollers during its passage through the steamer (Figs. 6, 7). The feed and take-up rolls for the material may also be located in the steamer (Fig. 8). The material may be heated prior to dyeing.