baber/WOPTO huggingface dataset:
Patent GB-919724-A (GB)
Title: Metal forming apparatus
IPC: B21D13/02
Filed: 1960-07-26
Abstract: 919,724. Corrugating; punching. ROBINSON, J. J. July 26, 1960 [July 30, 1959], No. 25964/60. Class 83 (4). Apparatus for corrugating strip metal includes opposed dies which move at right-angles to the plane of the stock, one of the dies also being moved in a direction parallel to the plane of the stock to effect the strip feed. A lower die 42 secured on a member 36 is vertically reciprocated by cams 18, 18a which rock levers 23, 23a carrying at one end a shaft 31a in turn carrying adjustable rollers 33 engaging the member 36. An upper die 58 likewise carried by a member 52 is vertically reciprocated by the cams 18, 18a rocking levers 24, 24a. The member 52 is slidable on vertical guide posts 53 projecting from a die block 54 and the whole assembly thereof is movable along horizontal guides 61, 61a by adjustable linkage means 62, 70, 71 rocked by a cam 19 and similar means 62a rocked by a cam 19a. In operation, from a position in which both dies are closed, Fig. 7, and the die 58 is at the end of its leftward stroke, the die 42 is retracted and the die 58 moved to the right to feed the strip at the same time lifting slightly to relieve friction forces. The die 42 is then closed to form a fold in the strip in co-operation with the die 58. The die 58 then retracts and then moves to the left while the die 42 lowers slightly to relieve friction forces. The die 58 is then closed into its initial position. The adjusting mechanism may be operated so that folds having differing height may be formed as the strip progresses through the dies. Strippers may be provided. Punching.-The dies may be provided with metal piercing members.
Patent GB-354580-A (GB)
Title: Improvements in or connected with tipping apparatus for wagons and the like
IPC: B65G67/00
Filed: 1930-09-01
Abstract: 354,580. Tipping apparatus. LEES & CO., Ltd., H. and BILES, A. W., 81, Mitchell Street, Glasgow. Sept. 1, 1930, No. 26007. [Class 78 (iv).] Tipping apparatus for wagons &c. of the kind such as described in Specification 284,045, [Class 78 (iv), Loading &c.], having an angularly movable cradle and wagonholding means angularly movable relatively to the cradle, has the holding means arranged to act on the floor of the wagon. The cradle A has a wagon platform B pivotally mounted thereon and a side support D. Cables E pass from a winding drum 7 under the bars 2 of the cradle. The arm 8 of the holding means is mounted on a pivot 4 and has an extension arm 9 carrying a floor-engaging beam 12. The arm 8 is connected by a cable H passing over a pulley to a balance weight (not shown). When the cradle is tilted the beam 12 engages a part of the wagon floor from which the coal has been'tipped. In a modification the table has wheels running on rails on the cradle.
Patent GB-241587-A (GB)
Title: An improved thermal time-lag relay
IPC: H01H71/20
Filed: 1925-10-19
Abstract: 241,587. Schiele &. Bruchsaler Industrie-Konzern. Oct. 18, 1924, [Convention date]. Thermal switches are operated by the heating effect of a current in a wire 2 which causes the softening of fusibde material 4 contained between a stationary member 1 and a biassed rotatable switch member 3, members 1 and 3 being in part of square or other section to prevent either of them rotating relatively to the fusible member 4. The member 3 may be a ratchet wheel in the teeth of which engages the pawl of a biassed switch arm. As shown in the Figure, the sleeve member 1 has a square portion 6 and the member 3 has a square portion 5, so that the fusible member 4 is subjected to a twisting action between its upper and lower portions, and when suficiently heated breaks in two in the middle. On cooling, the material 4 resolidifies, and the relay is ready for use again.
Patent GB-1062437-A (GB)
Title: A substituted chloro-vinyl phosphate having pesticidal properties
IPC: A01N57/12
Filed: 1964-06-24
Abstract: The invention comprises a compound of the formula <FORM:1062437/C2/1> It may be prepared by reacting trichloroacetic acid-b -chloroethyl ester with trimethyl phosphite in the presence or absence of a solvent at a raised temperature, preferably 50 DEG  to 100 DEG  C. The compound has pesticidal properties (see Division A5).ALSO:A pesticidal preparation, especially an insecticidal or acaricidal preparation comprises as active ingredient a compound of the formula:- <FORM:1062437/A5-A6/1> (see Division C2) together with a suitable carrier.  The preparation may contain one or more of the following additives: a solvent, a diluent, a dispersant, a wetting agent, an adhesive or further pesticides.  Spray solutions may contain petroleum fractions of a medium to high boiling range, oils, hydrocarbons, chlorinated hydrocarbons, cyclohexanol and ketones. Aqueous forms of application are derived from emulsion concentrates, pastes or wettable spray powders with the addition of water. Suitable emulsifiers or dispersants are nonionic, anionic or cationic products.  Solid preparations may contain the conventional carriers and/or substances which improve the distribution, the adhesiveness or the penetrating power, e.g. fatty acids, resins, glue, casein of alginates.
Patent GB-617796-A (GB)
Title: Improvements in arrangements for protecting contacts against sparking
IPC: H01H9/54
Filed: 1946-08-30
Abstract: 617,796. Sparking preventing. TOMLINS, F. C. (Western Electric Co., Inc.). Aug. 30, 1946, No. 26180. [Class 38 (v)] A germanium crystal rectifier 7 is used as a unidirectional device in series with a sparkabsorbing condenser 5 shunted across the contacts of a relay 1 controlling an inductive load 2, 3 in a D.C. circuit. In addition, a negative current characteristic resistance 12 may be connected across the load to absorb voltage surges. In a modified circuit, Fig. 3 (not shown), a ten ohm resistor is connected in series with the rectifier and a ten-thousand ohm resistor in shunt to them both to limit the current through and voltage across the rectifier. Two rectifiers, each with its series rectifier, may be connected in parallel, Fig. 4 (not shown). Specification 420,587 is referred to.
Patent GB-191138-A (GB)
Title: Improvements in apparatus for utilising the energy of waterfalls
IPC: F03B17/00
Filed: 1921-10-04
Abstract: 191,138. FouchÚe, E. Oct. 4, 1921. Buoyancy motors.-In apparatus for utilizing the energy of waterfalls of the kind in which a float rising and falling in a reservoir operates a piston in a cylinder to deliver water into a storage reservoir, twin reservoirs are provided each having a float, the floats acting in opposite directions so as to maintain a constant supply to the storage reservoir, the admission to, and discharge of water from, the float reservoirs being controlled by a double slide valve 1<1>, 1<11>. The valve-controlled chambers e<1>, e<11> are connected to one float reservoir, and the chambers f<1>, f<11> to the other, and the spindle of the valve is operated by a piston 3 supplied with compressed air under the control of a valve 4 governed by a lever 6 actuated by members 7, 8 carried by one of the floats. In a modification for use with variable heads, one of the floats carries a switch G<11>, Fig. 4, controlling the operating-mechanism I<2> of the double slide valve, this switch being reversed at the ends of travel of the float by contact with thrust-blocks e<111>, e<4> supported by Boats arranged in two tubes, one of which is connected to the head race and the other to the tail race.
Patent GB-289105-A (GB)
Title: Improved manufacture of salts of lead
IPC: C01G28/00
Filed: 1926-10-20
Abstract: 289,105. Smith, S. C. Oct. 20, 1926. Lead salts.-The lead salts of the acids of arsenic, antimony, chromium, tungsten, molybdenum and uranium are obtained by reacting an aqueous solution of a salt of the respective acid. or of the acid itself, with " active " lead chloride obtained by precipitating with water a solution of lead chloride in an alkali chloride or in hydrochloric acid. Preferably, the " active " lead chloride is prepared by saturating a boiling brine with sodium chloride and lead chloride, adding the solution to an equal volume of cold water. and removing and washing the precipitated lead chloride, which, for the production of the lead salt, is suspended in a hot or boiling solution of the respective salt or acid. Examples are given of the preparation of lead chromate, arsenate and t@ngstate. Specifications 237,308, 239,558, and 239,559 are referred to.
Patent GB-519024-A (GB)
Title: Improvements in and relating to electric timing circuits and apparatus
IPC: H03K17/288
Filed: 1938-09-09
Abstract: 519,024. Valve relaying circuits. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd., and RIDDLE, H. J. N. Sept. 9, 1938, No. 26371. [Class 40 (v)] [Also in Group XXXVIII] Electrical timing is effected by discharging a condenser charged to a predetermined potential through a resistance towards an opposite potential of substantially equal value, the period being that required to discharge the condenser to approximately zero voltage. The Figure shows a single line traffic controller operable from a 12 volt supply giving a cylic variation of the signals. Operation of relay A in the circuit of the valve V energizes relay B so that condenser Q1 is connected across the supply and condenser Q2 applies a negative bias to the valve V of 30 volts derived from the 12 volt supply and a bias battery in series. This releases the relays A, B so that condenser Q1 is connected to the valve, condenser Q3 maintaining the supply during the change over. Condenser Q1 discharges through resistances ZC and ZF and an equal and opposite potential since the resistance ZF is connected to the positive supply. The rate of discharge is dependant on the position of adjustable switch KB or KA depending on whether relay D is operated or not and continues until the valve V again passes current to operate relay A. Relay B in addition, controls the operation of relays C, D which co-operate to change the lights. With contacts as shown the operation of relay B energizes relay D, but not relay C, since this is short-circuited by contacts C1, B5, until relay B restores. The further operation of relay B short-circuits and releases relay D and its release de-energizes relay C and the cycle is completed. In a modification Fig. 2 (not shown) each operation of the relay effects movement of a uni-selector switch, the contacts of which are connected in groups, each group being associated with one phase of the traffic cycle. Each group may be associated with a tapping on the discharge resistance so that this resistance is adjusted to a separate value for each phase of the traffic cycle. Instead of automatic repetition of the cycle individual periods may be timed. The Provisional Specification also describes automatic variation of the timing- period and the application to elevator control.
Patent GB-702820-A (GB)
Title: Improvements relating to the breech block mechanism of firearms
IPC: F41A3/10
Filed: 1952-10-21
Abstract: 702,820. Ordnance. AKTIEBOLAGET BOFORS. Oct. 21, 1952 [Oct. 24, 1951], No. 26415/52. Class 92(2) Means are provided for decreasing the speed of movement of a transversely sliding breech block during the latter part of its closing movement. In the construction shown, the barrel 1 and breech ring 2 are mounted to recoil with respect to a part 20. The breech ring has guides for the vertically sliding breech block 6 whose movements are effected by a lever 8 on a shaft 9, the latter being connected to an operating arm and being under the control of a coil spring in a casing 10. Stops 4, 5, limit the downward movement of the breech block to its breech closing position. The drawing shows the barrel in the run-out position and prior to the release of a locking device which, when released, permits the breech block to descend by gravity and by the additional force of the recoil spring. Just before it reaches the stops 4, 5 the breech block encounters the upper ends of two spring-urged rods 16, 17, which are mounted in the breech ring and which during the run-out have been brought to a position above the free ends of two levers 18, 19 pivoted on the part 20. The levers are thereby depressed by the descending breech block and in turn serve to depress the rods 21, 22, of pistons working in cylinders 23, 24, connected to an oil tank 30. Each cylinder is grooved internally to allow the slow passage of oil past the piston, thus damping the final downward movement of the breech block.
Patent GB-1503817-A (GB)
Title: Magnetic bubble technology
IPC: G11C19/08
Filed: 1975-05-29
Abstract: 1503817 Magnetic storage arrangements MONSANTO CO 29 May 1975 [30 May 1974] 26561/77 Divided out of 1503816 Heading H3B The description and claims are directed to the "dog leg" and "alternate dog leg" ferromagnetic elements arranged in overlay patterns which form part of the disclosure of magnetic bubble propagating arrangements in parent Specification. Fig. 1 shows two parallel overlay patterns 10, 11 of "dog leg" ferromagnetic elements 14, 11, and Fig. 2 shows a similar arrangement of "alternate dog leg" elements 35, 30, bubble propagation along each of the two overlay patterns of a pair being determined by the phase sequence of a three phase in-plane system of magnetic field pulses 12, 13, 32, 34.
Patent GB-1236694-A (GB)
Title: Projectile driving bands
Inventor: CROSSLEY HENRY MORTON
IPC: F42B14/02
Filed: 1969-05-23
Abstract: 1,236,694. Moulding plastics. HENRY CROSSLEY (PACKINGS) Ltd. 14 May, 1970 [23 May, 1969], No. 26582/69. Heading B5A. [Also in Division F3] A method of moulding disintegrating driving bands for projectiles, comprises impregnating discrete fragments of fibrous material with a thermosetting resin, loading the fragments in random manner in a die, and applying heat and pressure so as to compact and bond the fragments together to form a driving band. A temperature of 320‹ F. and a pressure of 3-4 tons/ sq. inch are applied. The resin is a phenol or cresol formaldehyde resin. The fragments are approximately # inch long and comprise asbestos, cotton, jute, hemp, carbon fibres, glass fibres, polyesters, polyamides or acrylic fibres, or cellulose, viscose or acetate fibres, or hair. The textile materials are used in the form of single yarns, braided or plaited yarns, tight twisted strands or as woven cloth. A rubber ebonite binder is used with tight twisted strands to prevent the strands disintegrating into single yarns. A small quantity of copper strands can be included with the fibrous material. To assist disintegration of the driving band, as the projectile to which it is fitted leaves the muzzle of a weapon, the fragments of fibrous material are coated with polytetrafluoroethylene, mica, talc or graphite prior to moulding.
Patent GB-503149-A (GB)
Title: Improvements in or relating to shaft packing or sealing devices
IPC: F16J15/38
Filed: 1937-10-01
Abstract: 503,149. Stuffing -box substitutes. VARIABLE SPEED GEAR, Ltd., and INGOLDBY, M. K. Oct. 1, 1937, No. 26639. [Class 122 (v)] In a shaft packing comprising a ring 17 pressed axially by fluid pressure and a spring 21 into contact with a radial surface 14 on the shaft, the total area 21, 27 subjected to liquid pressure is not less than a half of, but less than the area' 22 of the sealing face. A cup packing 23 expanded by liquid pressure or by a slotted U-shaped spring is arranged between the ring 17 and the casing. Specifications 503,148 and 503,150, [both in Group XXVIII], are referred to.
Patent GB-267963-A (GB)
Abstract: 267,963. Hydrocarbon Akt.-Ges. fiir Chemische Produkte. March 20, 1926, [Convention date]. Hydrogen; carbon.-The soot is removed from acetylene-splitting cylinders 1 by repeatedly circulating the mixture of hydrogen and soot bv an exhauster 6 through a soot-collector 9 and back to the cylinder. A number of cylinders 1 are used, each having control valves 2, 4 which are opened, after the splitting operation, to connect the cylinder through the pipes 5, 8, 10, 7, 3 with a common soot-collector 9 and continuously. operated exhauster 6. Excess hydrogen is removed from the system through a second sootcollector 12. The acetylene is supplied to the cylinders through pipes 15. Pipes 16 are also provided for the hydrogen. A short cross pipe may be provided in front of the exit opening of the collector 9 in which a plug of soot forms preventing entry of air and loss of hydrogen when emptying the collector of soot.
Patent GB-182079-A (GB)
Title: Improvements in or relating to floating docks
IPC: B63B1/02
Filed: 1921-10-12
Abstract: 182,079. M³ller, M. June 24, 1921, [Convention date]. Floating-docks. - In a mobile floating-dock of U- shaped section, a part of one side wall is cut away to form a gap through which vessels may be floated in or out sideways. The dock comprises a pontoon a carrying a side wall of full height, a bottom pontoon divided into watertight compartments by bulkheads c and a pontoon b carrying a low side wall with tower-like structures d, e at each end, leaving a gap A-B through which vessels may pass. The volume of the towers d, e is such that stability is ensured at any draught.
Patent GB-191468-A (GB)
Title: Improvements in toy optical projectors
IPC: G03B21/26
Filed: 1921-10-12
Abstract: 191,468. Porter, E. M. Oct. 12, 1921. Drawings to Specification. Lantern slides.-Pictures cut from a kinematograph film are removably mounted on a slide for use in a toy optical projector.
Patent GB-287004-A (GB)
Title: Centrifugal friction clutch
IPC: F16D43/18
Filed: 1927-10-12
Abstract: 287,004. Kaisser, K. Oct. 12, 1927. Driving-arrangements.-In centrifugal friction clutches, particularly for use with short-circuited armature electromotors, a group of weighted levers 8 acts centrifugally to displace a conical part 10 of a sliding collar 7, pressed by a spring (not shown), and thereby withdraw noses 11 from a second group of centrifugal levers 9, which act when so released at full speed to expand a clutch ring 5, preferably built up of several layers, into engagement with a driven pulley 4. The last part of the movement of the levers 8 entirely removes the collar 7 from contact with the levers 9. Wedge-ended pins 12 on the collar 7 or ring 5 may first be partially withdrawn from recesses in the ring or collar to allow preliminary expansion of the ring under its own centrifugal force, the pins also acting positively to retract the ring on return of the collar. Prior to release of the ring 5 and levers 9, collar 7 may actuate or release means for cutting out the single-stop stator resistance of an electromotor. The levers may be replaced by radially-moving centrifugal blocks &c.
Patent GB-1035890-A (GB)
Title: Anti-static fibre blend
IPC: D06M13/402
Filed: 1965-06-25
Abstract: A spinnable blend of hydrophobic synthetic e.g. vinylic and acrylic, polyamide, polyacetal, polyester, polypropylene, polyurethane, fibres comprises 55-90% of fibres incorporating 0.25-2.0% by weight of a durable anti-static agent and a compensatory 10.45% of fibres incorporating 0.25-1.0% of a friction increasing agent (preferably a non-durable or removable anti-static agent).  The agents may be applied at any stage of fibre processing prior to blending.
Patent GB-271533-A (GB)
Abstract: 271,533. Wylam, B., Harris, J. E. G., Thomas, J., and Scottish Dyes, Ltd. Jan. 21, 1926. Leuco compounds of vat-dyes, esters of. - Soluble derivatives of vat-dyestuffs, similar to those described in Specifications 186,057, 245,587, and 247,787, are obtained by treating alkali salts of leuco compounds of vat-dyes, in aqueous solution in presence of a tertiary base, with chlorsulphonic acid, alkylsulphuric acid halides, oleum, or sulphur trioxide, or compounds of them with pyridine. According to examples, products are obtained from flavanthrone, anthraquinone-1 : 2- naphthacridone, or thioindigo and methylsulphuric acid chloride or chlorsulphonic acid, indigo and sulphur trioxide, and indanthrone and butylsulphuric acid chloride. In each case the vat dyestuff is reduced with sodium hydrosulphite and caustic soda; pyridine and the sulphuric acid derivative are then added to the vat together with more caustic soda ; the pyridine and sulphuric acid derivative may be mixed prior to the addition. Dibenzanthrones are also specified as suitable vat-dyestuffs. The products may be dyed or printed on to cotton or other fibres and the shades of the vat dyestuffs developed by hydrolysis and oxidation in the manner described in Specifications 186,057, 245,587, 248,802, and 251,491.
Patent GB-1351020-A (GB)
Title: Rough textured fibre boards and process for their manufacture
IPC: E04B1/86
Filed: 1971-04-19
Abstract: 1351020 Fibre boards ARMSTRONG CORK CO 19 April 1971 [23 March 1970] 27156/71 Heading D2A [Also in Division B6] A process for the formation of a rough texture on fibre boards comprises producing fissures in the surface of a wet board by a needle punching operation, the board being moved relative to the punches whereby the surface of the board is torn. The needles 16 are reciprocated by air operated cylinders 20. The board is subsequently dried, back-sanded to reduce its width punch-fissured by an elongate tool, Fig. II (not shown), provided around its edge with a kerf and painted.
Patent GB-390073-A (GB)
Title: Improvements in or relating to appliances for use with test tubes and similar articles for preventing them from boiling over
IPC: B01L3/00
Filed: 1932-09-30
Abstract: <PICT:0390073/III/1> <PICT:0390073/III/2> Devices for inserting into test-tubes &c. to prevent the liquids from boiling over comprise rods of metal, glass, &c. provided with spirals or discs at their lower ends or in their middle portions.  The discs may be notched as at 5, Fig. 1, to facilitate the escape of vapour, and they may be pivotally or slidably attached to the rod.  An arcuate portion 11, Fig. 4, of the rod may be provided to maintain the rod centrally in the tube and a disc 6 at the upper end facilitates handling and may bear a distinguishing mark.  The test tubes may have inward or outward bulges 3 in the side walls.
Patent GB-616735-A (GB)
Title: A process for refining high-boiling dark-coloured mineral oils poor in aromatics
IPC: C10G25/00
Filed: 1946-09-10
Abstract: Dark-coloured mineral oils poor in aromatics and having a higher boiling range than that of kerosine, such as lubricating oils, insulating oils and transformer oils, are purified by percolation through bauxite at temperatures above 200 DEG  C., but below the temperature at which considerable cracking takes place, preferably between 225 DEG  and 275 DEG  C.  The percolation may be carried out at increased or reduced pressure.  Preferably, a bauxite of low iron content is used.  The size of grain may vary from 0.2 to 1.0 mm. and the bauxite may be placed in a cylindrical vessel of a diameter from 1 to 5 metres resting on a perforated plate to a thickness of 1 to 10 metres.  Before use, the bauxite is dried and activated by heating to 500 DEG  C.  The oil remaining in the bauxite can be recovered by extraction with a solvent and added to a subsequent charge, or percolated separately.