baber/WOPTO huggingface dataset:
Patent GB-713365-A (GB)
Title: Improvements in or relating to arrangements for securing electrical insulators
IPC: H01B17/26
Filed: 1952-03-04
Abstract: 713,365. Insulators. COMPAGNIE GENERALE D'ELECTRICITE. March, 4, 1952, [March 6, 1951.] No. 5687/52. Class 36. An insulator is secured to an electrical apparatus by an annular metal clamp in one or more parts which exerts a uniformly distributed force over a conical surface of the insulator, a thin annular shock absorbing cushion having the same thickness throughout being placed between the clamp and the insulator. The metal clamp 4 (Fig. i) has an internal conical face having the same inclination as a conical surface 1 on the insulator, and is formed in two or more sectors which are secured together by bolts 8 around a slightly compressible cushion 5. The clamp is secured to a metal plate 6 by bolts 7, and the base of the insulator rests on packing 2 in a metal element 3. Alternatively the clamp may be made in one piece which may be slipped over the top of the insulator, or the internal diameter of the clamp may be such that it can be slipped over the base of the insulator. In the latter instance two concentric cushions may be used with an interposed metal ring made in two or more sectors. In a further modification a metal ring 12 (Fig. 4) formed in two or more sectors may be placed between the clamp 4, which in this instance is cylindrical, and the cushion 5, the clamp having an internal annular shoulder 13 which fits into a complimentary recess in the ring I2.
Patent GB-465642-A (GB)
Title: Improvements in or relating to the optical systems of scanning devices for television apparatus
IPC: H04N3/08
Filed: 1936-02-26
Abstract: 465,642. Television. TRAUB, E. Feb, 26, 1936, No. 5752. [Class 40 (iii)] The image of an illuminated slot 7, Figs. 1, 3, is traversed across a plot 17 by the line scanning device 11. 12, and the linearly moving illuminated area formed by the intersection is given a scanning movement at right-angles by the frame scanning device 15. The scanning devices 11, 12, 15 are preferably those disclosed in Specification 448,238. Preferably a lens 18a, Fig. 4, is placed close to the slot 17 to concentrate all the emergent light into an objective lens 18b. The invention overcomes distortion due to the scanning devices 11, 12 producing curvilinear movement of the image of the slot 7.
Patent GB-397547-A (GB)
Title: Improvements in and relating to advertising and like display devices
IPC: F21V8/00
Filed: 1932-02-26
Abstract: 397,547. Changing-signs. COLLIS, H. H., Carmel, Eastcote Road, Ruislip, Middlesex. Feb. 26, 1932, No. 5774. [Classes 3 (i) and 3 (ii).] A plurality of reflection or edge-illuminated transparent plates 2 .. 7 are spaced apart one behind the other, and are illuminated two or more simultaneously so that moulded, embossed, depressed, or other representations on the plates stand in stereoscopic relief. The illuminating means comprises a lamp 9 surrounded by a rotating prism mounted on rollers 19 and having colour filters 12 in its sides, the effect being to light up the plates 2 .. 7 in succession, two or more being always lit simultaneously. An opaque strip may separate the colour filters, and a sheet of frosted glass &c. may be interposed between the light and the plates. The plates may be removably mounted in grooves in a casing 1, and the lamp 9 may be disposed at top, bottom, or side of the plates.
Patent GB-1268609-A (GB)
Title: Improvements in or relating to centrifugal casting
Inventor: SCHROLL JOSEF
IPC: B22D13/00
Filed: 1971-03-02
Abstract: 1,268,609. Centrifugal casting of composite articles. INGENIEURBURO SCHIFFBAU VEB. 2 March, 1971, No. 5790/71. Heading B3F. In a centrifugal casting process in which an insert 5 is to be incorporated into the cast product 4, the insert 5 is supported in a sandlined chill mould 1 by supports carrying counterweights 7 embedded in the sand lining 3. Fixing points 8 for the counterweights may be provided on an intermediate ring container 2. The shape and mass of the counterweights is such that there is no variation in the position of the insert during the casting process.
Patent GB-446129-A (GB)
Title: Lifting and lowering device for a clothes line, and the like
IPC: D06F53/04
Filed: 1935-02-25
Abstract: 446,129. Clothes lines. HEWSON, E. W., 506, Westhorne Avenue, Eltham, London. Feb. 25, 1935, No. 5951. [Class 52 (v)] A clothes line k is attached to one end of a frame provided near the centre with a cross member and at its other end with a pulley wheel and is raised and lowered by means of an endless rope g. The rope g is attached at one end to the cross member, passes over a supporting pulley h and down between the cross member and the pulley wheel, the other end being then attached in turn to the cross member leaving a loop by which the device can be operated.
Patent GB-907778-A (GB)
Title: Improvements in or relating to the production of artificial leathers
IPC: D06N3/00
Filed: 1961-02-17
Abstract: 907,778. Artificial leather. GOPPINGER KALIKOUND KUNSTLEDER - WERKE G.m.b.H. Feb. 17, 1961 [Feb. 19, 1960], No. 5995/61. Class 140. An artificial leather which is pervious to water vapour and is capable of absorbing moisture, is produced by combining a woven or knitted fabric backing with a felt or fleece of natural and/or synthetic fibres, which felt or fleece has been impregnated with a natural and/ or synthetic rubber or a synthetic resin and then grained, and applying a film of synthetic resin by coating rolls or like means to the surface of the impregnated and grained felt or fleece in such manner that only the projecting points of the graining are coated. The process may be modified by applying a synthetic resin layer to a paper with an embossed grain, placing the impregnated fleece or felt on the layer, the felt or fleece together with the synthetic resin layer, being subsequently stripped from the paper when the resin has dried, and wound into a roll. Suitable impregnants are natural or synthetic rubber or synthetic resins such as polyvinyl chloride or the copolymerization products of vinyl chloride, e.g. with vinyl acetate, polyacrylates, polyethylene, polyaddition products, polyester, isocyanate modified polyesters, and may be foamed. The fleece may be of nylon and cotton fibres, the backing may be of cotton, and the synthetic resin film of a polyester.
Patent GB-781012-A (GB)
Title: Improvements in or relating to arrangement of ship holds and hatchways therefor
IPC: B63B25/18
Filed: 1955-03-01
Abstract: 781,012. Ships holds. LEGRAND, P. March 1, 1955 [March 2, 1954], No. 6015/55. Class 113. In a ship hold arrangement comprising at least two superimposed decks 1, 2 the hatchway borders 3<SP>1</SP>, 4<SP>1</SP> of which are offset horizontally with respect to each other so that at least one deck (2) shows alongside the border of its hatchway (41) one or a plurality of areas constituting an uncovered advance with respect to the hatchways of the upper decks, the displacement of the decks is combined with a vertical raising of the hatch coamings of said displaced decks. Due to the relative displacement of the decks 1, 2 the hold between them has a vertical access dimension a and an oblique access dimension z. The hatch coaming cos a 4<SP>1</SP> is shown at 4<SP>11</SP> raised by an amount y while at 4<SP>111</SP> it is raised an amount y<SP>1</SP> to uncover the ends of the deck beams 6 which are of bracket shape and whose lower wings 5 may be used as runways for loading trollies.
Patent GB-383829-A (GB)
Title: Improved gear changing device more particularly for use in electrical apparatus
IPC: G01R11/56
Filed: 1932-02-29
Abstract: 383,829. Supply meters ; controlling change-speed gearing. LANDIS & GYR AKT.-GES., 1, Hofstrasse, Zug, Switzerland. Feb. 29, 1932, No. 6024. Convention date, March 18, 1931. [Class 37.] In variable-speed gearing for use particularly in electrical apparatus such as multiple tariff electricity supply meters, the gear wheel 32 effecting the change-over from one toothed gear 28 to another 29 is actuated by a Ferrari relay. This relay comprises a magnet winding 1 on a core 2 which is provided with poles 5..8, of which two poles 5, 8 are shaded as at 3, 4. A magnetic shunt 11 is carried on a non- magnetic support 14 secured to the core 2 at 17 and serves to direct the flux through the conducting armature disc 15 which is carried in bearings on the member 11 and a non-magnetic bar 13. The spindle of the disc 15 is geared at 12 to a wheel 21, on the spindle of which a spring-returned wheel 24 is carried. A notch 22 on the wheel 24 engages a pivotal lever 27 on rotation and effects the change-over of the gear 25 carried thereon. The gear 26 is mounted on the spindle of a meter-driven driving gear 32. On energization, the disc of the Ferrari relay rotates and turns the wheel 24 until the tension of the spring 23 balances the torque of the motor. In this position the stop 22 has engaged and tilted the lever 27 so that the pinion 32 has just engaged the gear 29.
Patent GB-469338-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B1/16
Filed: 1936-02-28
Abstract: 469,338. Centrifugal separators. FAWCETT, H. W. Feb. 28, 1936, No. 6085. [Class 23] The bowl 1 of a centrifugal separator has peripheral sludge discharge apertures 6 controlled by valves 7 constrained by springs 15. The diameter of each aperture 6 is not less than one-eightieth of the maximum internal diameter of the bowl, and the product obtained by multiplying the weight of the liquid displaced by the valve and its spring by the mean centrifugal force operating at the valve, is not more than ten times the unbalanced liquid pressure acting on the valve when closed while the bowl is full and running at normal speed. The valve has a stem 8 with a spider 9 at its inner end working over two or more guides 11 projecting from a ring 12 in which a nozzle 13 with an aperture 6 is supported. The spring 15 is placed between the spider 12 and a ring 14 resting against shoulders on the guides 11.
Patent GB-1448503-A (GB)
Title: Cassette-type magnetic tape recorder
IPC: G11B15/675
Filed: 1974-02-11
Abstract: 1448503 Cassette recorders S STEIDINGER [trading as DUAL GEBR STEIDINGER] 11 Feb 1974 [12 March 1973] 06103/74 Heading G5R A cassette-type magnetic tape recorder has a function selector switch 4 which is changed over from a first to a second position by an adjusting member 9 on insertion of a cassette 3, a locking mechanism 21, 22 maintaining the switch in the second position or allowing spring 10 to return member 10 so that the switch resumes the first position in dependence on whether a sensing member 27 senses the absence or presence respectively of an opening in a wall 34 of the cassette, and a manually operable member 14 being also operable to change over switch 4 and release the locking of member 10. On inserting a tape cassette 3 containing a standard type of tape, a slide 2 is moved by the cassette to displace member 9, via surface 24 and pin 25, to change a switch 4 to its second position and a spring 23 rotates a lever 20 anticlockwise until member 27 abuts wall 34 in which position projection 21 abuts edge 28 of member 9 to lock the switch in the second position. If a CrO 2  cassette is inserted, the opening in the wall 34 thereof allows spring 23 to rotate lever 20 further than for a standard tape cassette so that projection 21 clears edge 28 and springs 10 and 6 return member 9 and switch 4 to their initial positions, projection 21 riding up a sloping surface 31 on member 9 and the dropping down to abut edge 30 of member 9 in the initial position. The position of member 9 determines whether a "Std." or "CrO 2 " legend on member 14 is visible through window 12. To put the recorder into a CrO 2  node when a cassette without an opening in wall 34 has been inserted, member 14 is normally moved to the CrO 2  position thereby engaging arm 17 with lever 20 to release the locking of member 9.
Patent GB-129394-A (GB)
Title: Improvements in Machines for Cutting the Globes or Bulbs of Electric Incandescent Lamps and the like.
Inventor: BROWNLOW RICHARD SYDNEY
IPC: C03B33/095
Filed: 1918-04-13
Abstract: 129,394. Brownlow, R. S. April 13, 1918. Cutting glass.-In a machine for dividing the bulbs of electric lamps &c. the lamps &c. remain stationary while a blowpipe and diamond rotate. In the form shown, which may be duplicated so that two lamps may be operated on at once, each lamp is mounted in a holder f on a stationary shaft b around which rotate conical sleeves c, d. The outer sleeve d carries a table q, on which are supported a blowpipe stand s and a bracket with a pivoted arm r<2> carrying the diamond. A spring u causes the diamond to bear on the bulb except when the arm is deflected by the rise of a cone k attached to the inner sleeve. A driven pulley m forms one member of a clutch, the upper member o<1> of which can be raised by a pedal to stop rotation of the sleeves. The clutch member o' is secured to the inner sleeve by a pin passing through a slot d<1> in the outer sleeve, so that depression of the pedal also causes the diamond to leave the bulb. Compressed gas and air are supplied to the blowpipe through an axial passage in the shaft b, a circumferential groove and a hole in the inner sleeve, a slot in the outer sleeve, and a passage in the table q. According to the Provisional Specification, the outward movement of the burner or diamond carrier, or both, may be brought about by stationary trip pieces; also the clutch may be dispensed with.
Patent GB-126108-A (GB)
Title: Improvements applicable to Reciprocatig Rock-drills, for Supplying Water to the Bore Holes during Drilling.
Inventor: NETTLE WILLIAM EDWIN
IPC: E21B21/01
Filed: 1918-04-15
Abstract: 126,108. Nettle, W. E., Selby, P., Blythe, J., and Holman, J. H. April 15, 1918. Percussive drills.-In a percussive rock drill in which water is fed through the piston, pistonrod, and tool by a tube 14 fixed to the piston and projecting through a stuffing-box in the rear cover 9 and into a water chamber 27, a free space or slot is provided between the rear cover and the water chamber. The chamber may be integral with the rear cover or secured thereto. Glands 13, 21 are provided at each side of the free space, and a plate, connected to the machine by a chain, may be engaged with an aperture 23a to lock the glands. The tube is fixed to the piston by a threaded bush 19, rubber or other resilient washers 17, 18 being placed on each side of a flange 15 on the tube. The thread of the glands is such that the normal rotation of the piston tends to tighten them.
Patent GB-662962-A (GB)
Title: Improvements in decorative screen materials
Inventor: CAMPBELL WILLIAM JOHN
IPC: B21D31/04
Filed: 1949-03-08
Abstract: 662,962. Expanded metal work. ALTONES, Ltd. May 22,1950 [March 8, 1949], No. 6361/49. Class 45 A decorative screen material comprises two sheets of expanded metal set closely together with the lattice structure of one sheet overlapping the lattice structure of the other sheet the inclination of the shorter axes of the lattice cells of one sheet being opposed to the similar axes of the other sheet. To achieve this the two sheets are connected together back to back or with one rotated approximately 180 degrees relative to the other. The long axes of the lattice cells of one sheet may be arranged at a small angle to the similar axes of the second sheet. The sheets may be of different thickness and strand width, particularly when curved, the thinner sheet being placed on the inside of the curve.
Patent GB-928690-A (GB)
Title: Improvements relating to trickle nozzles for irrigating and like purposes
IPC: A01G25/02
Filed: 1960-02-23
Abstract: 928,690. Nozzles. C. R. BENT. Feb. 23, 1960 [Dec. 18, 1959], No. 6384/60. Class 69 (3). A nozzle for producing a trickling of liquid for land irrigation consists of a threaded nipple 2 with a head 8 attached to a hose 7 by a cap 6, and the latter is loosely threaded on the nipple whereby liquid flows through a central bore 3 and one or more cross bores 4 to the space between the loosely co-operating threads and trickles from the outer end of the cap. When fitted to a metal pipe the head 8 is removed.
Patent GB-771914-A (GB)
Title: Improvements in or relating to solid-tyred wheels
Inventor: DRAKEFORD GEORGE EDWARD
IPC: B60B27/00
Filed: 1954-03-05
Abstract: 771,914. Wheels. DUNLOP RUBBER CO., Ltd. March 1, 1955 [March 5, 1954], No. 6435/54. Classes 144 (1) and 144 (2). A wheel comprises integrally moulded disc, rim and hub portions 1a, 1c and 1d of vulcanite, with a solid rubber tyre 3 vulcanized to the rim portion 1c and a pair of telescoped metal sleeves 2a, 2b, each having a radial end flange, 2c moulded with the hub portion 1d to form an outer race member 2 for ball or roller bearings 5. As shown, the wheel is compression moulded from fibre - reinforced rubber compound and the tyre 3 is transfer or displacement moulded on the rim 1c, or alternatively an extruded length of unvulcanized tread stock is butt-jointed around the previously roughened, rubber-solutioned rim of a partly vulcanized wheel and the assembly finally cured in a mould. The disc 1a is strengthened by circumferentially-spaced radially-extending thickenings 1b. The race member sleeves 2a, 2b comprise steel pressings, the axially outer ends 2c of which are turned radially inwardly to retain the rollers 5, the radially outer sleeve 2b having its other end 2d bell-mouthed to key into the wheel hub. For use with ball-bearings, the inner surface of the race portion may be circumferentially grooved.
Patent GB-1026029-A (GB)
Title: Process for the recovery of alkyl ester of p-hydroxy-benzoic acid
IPC: C07C69/88
Filed: 1965-02-15
Abstract: A process for the recovery of alkyl esters of p-hydroxybenzoic acid, the alkyl being of 1 to 12 carbon atoms, from a mixture thereof with impurities of greater volatility than the ester, is characterized by heating the mixture to a temperature of 100 to 170 DEG  C., introducing live steam into the heated mixture, withdrawing the thus-liberated volatiles and discontinuing the introduction of live steam when the treated mixture consists essentially only of the alkyl ester.  The steam may be introduced into the heated mixture under sub-atmospheric pressure or atmospheric pressure.
Patent GB-705515-A (GB)
Title: Hypodermic jet injector
Inventor: SCHERER ROBERT PAULI
IPC: A61M5/30
Filed: 1951-03-19
Abstract: 705,515. Hypodermic injectors. SCHERER CORPORATION, R. P. March 19, 1951, No. 6520/51. Class 81(2) A hypodermic jet injector includes a body assembly holding an ampoule with a closure member therein, a primary and a secondary plunger slidable in said body so as to engage and propel the said closure member to discharge liquid from the ampoule, through an orifice therein, at two different sequential pressures, both of the plungers being propelled by spring means operable upon a nut slidable in said body assembly, there being a screw threaded in said nut with a releasable means for latching said screw against longitudinal movement and winding means for rotating said screw relative to said nut. As shown in Figs. 4 and 5, five springs 111, of which only one is shown, are spaced around a central screw 110 which engages in a threaded portion of a sleeve-shaped nut 100, the springs seating in one end in seats 103 formed in the nut 100 and at the other end against a partition 112 formed in the body of the device. Depression of a button 61 causes latch mechanism 54, 66 to release the portion 115 of the screw 110, which, together with nut 100, is propelled to the right, causing a primary plunger 80 to act on the closure member 73 of ampoule 72 so as to expel liquid therefrom at a high pressure. Continued movement of the nut 100 and screw 110 then forces a secondary plunger 90 against the closure 73 so that liquid continues to be expelled but at a lower pressure; at the end of the injection the parts assume the position shown in Fig. 10. To prepare for re-use a winding sleeve 40 is first rotated anti-clockwise until the rear portion of the screw is again held by the latch mechanism 54, 63, and then rotated clockwise so as to draw the nut 100 to the rear and compress the springs 111. Means are provided for varying the quantity of liquid injected and for varying the proportions injected at the higher and' lower pressures. Specification 681,098 is referred to.
Patent GB-200138-A (GB)
Title: Improvements in apparatus for mixing and beating liquids and semi-liquid substances
IPC: A47J43/10
Filed: 1922-03-06
Abstract: 200,138. Morton, R. H. March 6, 1922. Stationary batch-mixers with rotary stirrers.- In a hand-operated machine for beating liquids or semi-liquids, comprising beaters mounted on a horizontal axis in a mixing chamber having a hot-water chamber thereunder, the gearing is mounted in a frame comprising a T-shaped member 4 secured to the mixing chamber and a removable member 13 secured to the first member. The members are provided with aligned bearings for the gearing shafts 18, 20.
Patent GB-231653-A (GB)
Title: A waterproof composition suitable for use in building and for other purposes
IPC: C08L95/00
Filed: 1924-03-13
Abstract: 231,653. Walker, F. T. March 13, 1924. Coating-compositions applied melted. - A waterproof composition suitable for use in building comprises ground oolitic rockstone (a limestone overlying the Ketton oolite and found near Ketton, Rutlandshire), pitch, tar, and, optionally, bitumen. The pitch and tar, and bitumen if used, are boiled, and the rockstone added, the boiling being continued until most of the tar is eliminated. The hot material may be directly applied. A small proportion of cement may be mixed with the rockstone.
Patent GB-360780-A (GB)
Title: Improvements in locking devices for trunks and the like
IPC: E05B65/52
Filed: 1931-03-03
Abstract: 360,780. Multiple fastenings. NÍRRENBERG, K., Iserlohn, Germany. March 3, 1931, No. 6613. Convention date, March 3, 1930. [Class 44.] In fastenings for trunks &c. having a central lock and side locks all released by a key inserted in the central lock, the central lock has a pair of pivoted members 14, 15 biased inwards by springs 29, 30, and positively moved outwards into locking engagement with a plate 16 by depression of a press-button 17 which is retained depressed by a latch plate 24 released by the key co-operating with an aperture in the plate. The button 17 has bevelled faces 34, 35 which enter between members 14, 15, and bevelled faces 40, 41 co-operating with the latch plate which engages behind a flange 42. Rotation of the button is prevented by guide projections 37, and guide-pins (not shown) engaging apertures 38, 39, springs (not shown) urging the button to the raised or release position. The side locks shown have spring hasps 4, 5 of ordinary form with eyes 10, 11 engaged by latch bolts 6, 7 connected to sliders 18, 19 in the central lock and shot by springs 20, 21 which also act on the.latch plate 24. Rotation of the key on key-pin 43 first operates the plate 24 to release the button, allowing members 14, 15 to move to unlocked position, further rotation of the key withdrawing bolts 6, 7 by co-operation with the tails of sliders 18, 19.