baber/WOPTO huggingface dataset:
Patent GB-404151-A (GB)
Title: Improvements in and relating to abrasive elements for abrading tools
IPC: B24D11/00
Filed: 1933-02-04
Abstract: 404,151. Paper and like tubes. WARBURTON, R. E. L., 42, Rutland Gate, London. Feb. 4, 1933, No. 3468. [Class 99 (ii).] A tubular abrasive element for use on an abrasive tool comprises a supporting mandrel of paper &c., covered with a spirally-wound strip of abrasive-coated material, the mandrel being formed and covered with the abrasive strip in one continuous operation. The element is formed by the use of a series of rolls 1-4 on a shaft 5 carrying fabric, for example chipboard or kraft paper, strips 6-9 fed to, and wound spirally on a former 10 so that the strips 6, 7 form the mandrel, and the strip 8 a supporting layer for the abrasive coated strip 9 ; the layers formed by the strips are arranged to break joint, and are secured together by an adhesive. Portions of the desired length are cut from the tube, and may be moulded, to give any desired contour, either before the adhesive has set, or afterwards by softening by moisture or in a steam box. In order to avoid tearing of the abrasive covering as at the edges 21, the corners of the element, at 22, may be moulded or bent inwards. The number of strips employed may be varied ; for example, one of the strips 6, 7 may be omitted, or more than two strips may be employed. A removable protective layer of thin paper also may be wound over the abrasive layer.
Patent GB-1178722-A (GB)
Title: Process for the production of Dense Sintered Metal Bodies
Inventor: OKA AKIRA
IPC: B22F3/12
Filed: 1967-01-24
Abstract: 1,178,722. Powder metallurgy. A.OKA. Jan.24, 1967[Jan.25, 1966], No.3495/67. Heading C7D. Sintered metal bodies having a density substantially equal to the true density of the metal are produced from colloidal metal particles less than 0À2 microns in size by compacting and sintering the particles in the absence of oxygen e. g. in an atmosphere of inert gas, nitrogen or a vacuum. The metals specified are; Sc, Y, La, Ac, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, Pt. The powders are preferably produced by dehydrogenation of the hydrides, thermal decomposition of the carbonyls or alkoxides or by passing a high voltage, high frequency pulsed discharge between metal electrodes in a liquid medium (Iwatani method).
Patent GB-764696-A (GB)
Title: Improvements relating to pottery making machines
Inventor: JONES SAMUEL
IPC: B28B1/02
Filed: 1954-02-06
Abstract: 764,696. Making pottery. EDWARDS & JONES, Ltd. April 1, 1955 [Feb. 6, 1954], No. 3549/54. Class 87(1) In a machine for making cups and similar pottery hollow - ware articles in which clay in a rotary mould 13 is shaped by a profile tool 19 on a pivoted arm 16, the tool is first moved about the pivot 17, which is mounted in slide blocks 31, to engage the clay at the bottom of the mould and is then moved radially outwards by cams 30 on a shaft 25 engaging the boss 16a of the arm 16. During this latter movement, the arm 16 is allowed to drop slightly through a ramp 50 on its underside co-operating with a set screw 51. The speed of rotation of the mould 13 is increased during the later part of the shaping operation under control of a switch 36 (not shown) operated from the drive for the arm 16. At the end of the shaping operation, scrap clay is removed by. a scraper blade on an arm 41 which is held against a set screw 48 by a spring 45 and is raised clear of the mould by a single or double cam 44 on shaft 25 engaging an arm 46 Specification 625,641 is referred to and Specification 685,489 is referred to in the Provisional Specification.
Patent GB-744832-A (GB)
Title: Improvements in and relating to electric switching devices for use with co-axial cables
IPC: H01P1/12
Filed: 1953-02-09
Abstract: 744,832. Electromagnetic relays. BESSON & ROBINSON. Ltd., arid BESSON. A. P. Feb. 8, 1954 [Feb. 9, 1953]. No, 3587/53. Class 38(5) A coaxial line relay comprises a spring- blade 17 carrying a contact 13 positioned in a rectangular-section passage 11 in a body 10, the blade being attached by a matching stub 18 to a tapered plug 19 received within a socket 20 formed in the body. Thus the blade 17 may be positioned within the passage 11 by rectilinear motion of the plug 19 which is then fixed in the socket by a.pair of screws 21 co-operating with recesses 22 in the plug. The contact 13 is situated between a pair of fixed contacts Fig. 3, not shown), the fixed contacts being carried by plug members 15 screwed into opposite-ends of a passage 16 at right angles to the passage 11. The blade 17 is operated by a coil and pivoted armature disposed in a casing 23.
Patent GB-1447768-A (GB)
Title: Production of metal strip
IPC: B21C37/02
Filed: 1973-01-24
Abstract: 1447768 Making metal strip; extrusion; rolling BRITISH STEEL CORP 24 Jan 1974 [24 Jan 1973] 3596/73 Headings B3P B3A and B3M A metal strip 19 is produced from a cylindrical billet 11 by applying a localized deforming load to the billet as it is rotated to produce a plastic region 17 to which a member or roller 18 is applied to cause extrusion of the metal from the plastic region. The load is applied by a roller 14 which has back-up rollers 15 and a mechanical or hydraulic force applying screwdown. The member or roller 18 is adjustable so as to accommodate the reduction in the billet diameter. The billet is rotated by friction engagement with driven rollers on its circumference or end faces. The billet may be heated locally or generally. The strip 19 may be heat treated before coiling. Removal of the strip 19 from the cylinder may be assisted by tension.
Patent GB-212058-A (GB)
Title: Improvements in means for holding bread and the like for toasting
IPC: A47J37/06
Filed: 1923-02-07
Abstract: 212,058. Thomas, J. Feb. 7,1923. Toasting-apparatus.-A reversible toasting- fork is provided with a swinging frame carrying upper and lower rows of L-shaped prongs on which a number of slices may be toasted simultaneously.
Patent GB-233768-A (GB)
Title: Improvements in or relating to apparatus for raising liquids
IPC: F04F5/08
Filed: 1924-02-12
Abstract: 233,768. Boving, J. O. Feb. 12. 1924. Aspirating - apparatus, injector; regulating or controlling action.-An air - lift pump comprises an ascension pipe A for the aerated liquid and an hydraulic air compressor in which air is entrained by a body of water falling through a conduit B from a high level to a low level, the compressed air being released from the water in a chamber B' from which it flows through a pipe B<3> to the lower end of the pipe A. The pipes b<x> through which the air enters the water may be adjusted relatively to the mouth of the pipe B. In another form, the pipe A is coaxial with the pipe B which expands at the lower end to form a conical air-release chamber communicating with the lower end of the pipe A; and the air is entrained through a number of horizontal pipes branching from two main vertical pipes open to atmosphere. In another form, the lower end of the pipe B is curved so that it opens upwards below the lower end of the pipe A in an air-release chamber.
Patent GB-812494-A (GB)
Title: Improvements in or relating to fireplace structures
IPC: F24B1/195
Filed: 1957-02-01
Abstract: 812,494. Fireplace units. BIRBECK, T. Dec. 2, 1957 [Feb. 1, 1957], No. 3663/57. Class 126 A fireplace unit 1, Fig. 1, comprises a fireback with side walls 4, Fig. 5, extending forwardly, and a lintel 5 cast integrally with the fireback and having at opposite ends extending portions adapted to form fixing lugs 6 projecting laterally from the fireback. The lintel is reinforced by steel rods 9, Fig. 4, and is shaped to form with a rearwardly inclined upper part 7 of the fireback a chimney throat 8 and to accommodate asbestos rope 10 for insulation and expansion purposes. The side walls 4 have lugs 11 formed integrally at their lower ends to seat in the brickwork of the chimney breast. A frame 12 is cast integrally with the unit and receives facing material 13 either during or after casting. The fireback may be shaped during casting to accommodate a back boiler.
Patent GB-526165-A (GB)
Title: Improvements relating to the production of motor fuels
IPC: C07C2/62
Filed: 1939-02-03
Abstract: 526,165. Hydrocarbons. ANGLO-IRANIAN OIL CO., Ltd., DUNSTAN. A. E., and BIRCH, S. F. Feb. 3, 1939, No. 3685. [Class 2 (iii)] Gasoline hydrocarbons are prepared by reacting isobutane or isopentane with ethylene in the presence of concentrated sulphuric acid containing cupric sulphate and mercurous sulphate. The reaction is preferably effected in the liquid phase at a temperature of-10‹C. to 60‹C., superatmospheric pressure being necessary in the case of isobutane. The isoparaffin is present in substantial excess and the mixture is vigorously stirred. Since iron exerts an inhibiting effect upon the reaction, the apparatus is made of other materials than iron and mild steel. An example is given of the alkylation of isopentane with ethylene. Specification 515,039 is referred to.
Patent GB-792311-A (GB)
Title: Improvements in and relating to torsion bar front suspension for motor vehicles
IPC: B60G11/18
Filed: 1956-02-07
Abstract: 792,311. Spring suspensions. FORD MOTOR CO.. Ltd. Feb. 7, 1956 [Feb. 7, 1955], No. 3754/56. Class 108(2) An independent wheel suspension for the front road wheels 30 of a motor vehicle having a frame 10 including a pair of longitudinally extending side frame rails 12 interconnected near their forward ends by a transversely extending cross frame member 14, comprises a pair of suspension members 20 having hubs .18 journalled upon the forward portion of the frame for rotation about a common transversely extending horizontal axis the hubs being laterally spaced and each located at one side of the frame, the suspension members 20 extending from the hubs 18 and connected at their rearward ends to the road wheels, and a pair of angularly related torsion bars 40, 42, each having one end anchored to a forward portion of the frame at one side of the longitudinal centre line of the frame and extending diagonally rearwardly across the centre line toward the rear end of the suspension member 20 at the opposite side of the frame, and means connecting th adjacent ends of the torsion bars and suspension members at each side of the vehicle torsionally, to stress the bars as the wheels rise and fall. As shown, the forward ends of the torsion bars are secured through flexible couplings 46 and brackets 44 to frame reinforcing members 38 and the rearward ends are pivoted between ears depending from the suspension members 20. Combined hydraulic shock absorbers and tubular control members 34 are. secured to spindle supports 28 which are ball jointed to the rearward ends of the suspension members 20. Specification 779,597 is referred to.
Patent GB-1344398-A (GB)
Title: Preparation of orthoborate esters by transesterification
IPC: C07F5/04
Filed: 1972-01-26
Abstract: 1344398 Preparing orthoborate esters MINE SAFETY APPLIANCES CO 26 Jan 1972 [1 March 1971] 3766/72 Heading C2B Orthoborates are prepared by contacting in the liquid phase (usually in an inert organic solvent) B(OCH 3 ) 3  and a monohydric phenol or alcohol having three or more carbon atoms in the presence of molecular sieves that will absorb methanol but have pore openings smaller than the effective molecular diameter of the said alcohol or phenol. The molecular sieve may be a synthetic metal alumino-silicate of pore diameter 4 Š or larger and is preferably used in an amount of six parts by weight to each part of B(OCH 3 ) 3 . The absorbed methanol can be removed conventionally from the sieve and the latter reused. In the examples, tri-sec-butoxyborane and tricyclohexylborate are prepared using benzene and n-pentane as solvents.
Patent GB-514612-A (GB)
Title: Road signalling device
IPC: B61L29/24
Filed: 1938-02-07
Abstract: 514,612. Road signals for controlling traffic. MICHAU ET COQUARD. Feb. 7, 1938, No. 3788. Void. Convention date, Feb. 6, 1937. Drawings to Specification. [Class 118 (ii)] [Also in Group XXV] Upon an obstruction, such as the barrier of a level crossing, being put into position across a roadway, an electric circuit is closed to operate signalling means. The barrier may carry a box containing dry cells and a gravity switch which closes when the barrier is lowered to energize lamps on the side of the casing. An interrupter may be included to give a flashing effect and a photo-electric cell or clockwork mechanism may cause the circuit to be completed at night. The circuit may energize a relay to operate either optical or acoustic signals which may be remotely situated.
Patent GB-1268602-A (GB)
Title: Control system for a.c. elevator
IPC: H02P25/24
Filed: 1970-01-28
Abstract: 1,268,602. Control of A.C. motors. HITACHI Ltd. 28 Jan., 1970 [31 Jan., 1969], No. 4208/70. Heading H2J. In an A.C. lift system, a high-speed motor M1 is initially connected to a power supply U, V, W, with resistors r 1 , r 2 , r 3 , in series with its primary windings. After a predetermined period, contacts 21-1 are closed to reduce the effective resistance in the motor circuit. Following a further lapse of time, contacts 22-1 are closed so that resistors r 1 -r 3  are short-circuited. When a decelerating relay is actuated, a low speed motor M2 is connected to the power supply with control resistors r 4 -r 6  in circuit, the motor operating as a regenerative brake. The contacts 21-2 and 22-2 are operated in timed steps to reduce the resistance in circuit with the motor M2. In another embodiment, each motor has a pair of resistors in series with a single stator winding. These resistors are removed in timed steps, as before, Fig. 4 (not shown). Each of the stator windings may be in series with a respective resistor, the resistors being arranged symmetrically and a single contactor having contacts associated both with the high-speed and the low-speed motors, Fig. 6 (not shown). The resistors may be connected between the motor windings and the power supply, Fig. 7 (not shown). In further modifications, the two motors are replaced by a single motor which has high-speed and low-speed windings. The control resistors may be connected in the secondary circuits of the motors.
Patent GB-1103608-A (GB)
Title: Production of hydrogen fluoride
IPC: C01B7/19
Filed: 1966-01-31
Abstract: In the reaction between finely divided alkali metal fluoride or alkaline earth metal fluoride and sulphuric acid in a closed reactor, the net mechanical energy input is at least 4000 ft. lb/lb. of feed during the course of the reaction. The size of the particles should be such that not less than 75% by weight pass through a 100 mesh U.S. Standard sieve.  The reactor may be a continuous rotary reactor with lifting flights (the work done by which supplies the energy input) or a fluidized bed reactor, with mechanical agitation (which as well as the gas input supplies the work done which supplies the energy input).  Fluorspar is the preferred reagent, in stoichiometric quantity, and the temperature increases from about 170 DEG  C. near the fluorspar addition end to about 320 DEG  C. at the residue discharge end of the rotary reactor. The process may be continuous.
Patent GB-1382762-A (GB)
Title: Table top or wall clock
IPC: G04B37/04
Filed: 1973-01-26
Abstract: 1382762 Clocks BRAC A G 26 Jan 1973 [28 Jan 1972] 4231/73 Heading G3T In a table or wall clock, a dial or dial support 67 is attached to the front 51 of a clockwork housing 1 by means of undercut projections 20-22 on the rear of the dial 67 co-operating with the outer edge of the housing. In assembly, edge portions 20b and 21b of the front 51 are inserted under the projections 20, 21. The upper edge of the housing can then be snapped into position as the projection 22 is formed with a resilient tooth 22c. Slots 54-57 in the front 51 are for attaching the clockwork. The housing 1 is of plastics.
Patent GB-664047-A (GB)
Title: Process for the manufacture of bread
IPC: A21D2/16
Filed: 1949-02-16
Abstract: 664,047. Bread. KEYWORTH, C. M., and KEYWORTH & CO., Ltd., C. M. Dec. 16, 1949 [Feb. 16, 1949], No. 4305/49. Class 49 Bread of larger volume, more even texture and .better keeping properties is made from a dough containing a polyglyceryl ester of a fatty acid containing 10-12 carbon atoms in the molecule. Examples are concerned with making a polyglycerol by heating 1000 g. of glycerol with 4 g. of caustic soda to 280‹C. until 140 g. of water are distilled over, and baking bread from doughs of 280 lb. of flour, 5 lb. of yeast and 3¢ lb. of salt containing respectively a dispersion in 14 gal. of water of a polyglyceryl stearate made by esterifying 300 g. of the polyglycerol with 500 g. of stearic acid containing palmitic acid, and a solution in 14 gal. of water of a polyglyceryl oleate made by esterifying 300 g. of the polyglycerol with 510 g. of oleic acid. Specification 493,030 is referred to.
Patent GB-1531742-A (GB)
Title: Manufacture of glass
IPC: C03B5/20
Filed: 1975-01-31
Abstract: 1531742 Melting glass PILKINGTON BROS Ltd 21 Jan 1976 [31 Jan 1975] 4360/75 Heading C1M Molten glass is prepared in a tank 10 comprising a relatively wide portion 14 adjacent inlet 11, and a narrower portion 18, the wide portion 14 including melting zone 15 and refining zone 16, the narrower portion including a conditioning zone 19 which is shallower than the intermediate zone 9 which constitutes the remainder of narrow portion 18, means (e.g. barrier 34) for regulating flow of glass from wide portion 14 to narrow portion 18, return flow occurring in refining zone 16 and intermediate zone 9, but not in conditioning zone 19, and a step 33 at the start of shallow conditioning zone 19 which marks the limit of return flow through refining zone 16 towards melting zone 15. Barrier 34, which may be water-cooled, may skim off imperfect glass. Cooled stirrers 35, cooled cylinders 37 and a further cooled barrier 38 may also be provided. A soda-lime-silica glass may be cooled from, e.g., 1355-1375 C. at 34 to 1175-1225 C. at 33.
Patent GB-136041-A (GB)
Title: Improvements in Anemometers.
Inventor: GLAZEBROOK RICHARD TETLEY
IPC: G01P5/12
Filed: 1919-02-22
Abstract: 136,041. Glazebrook, Sir R. T., and Fage, A. Feb. 22, 1919. Anemometers.-In a hot-wire anemometer, the velocity of the air is reduced before the air passes over the hot-wire or through the hot-wire grid. The wire or grid a is mounted on a mica &c. frame b and supported in a ring c to which is secured a stream-line member e into the end of which is fixed a plug f having apertures g. Instead of, or in addition to, the plug f, a screen or screens h of fine mesh, carried by the ring c, may be provided in order to produce the desired decrease in air velocity.
Patent GB-114050-A (GB)
Title: Improvements in or relating to the Bearings of the Inking Rollers of Printing Machines.
Inventor: SMITH ERIC FRANCIS
IPC: B41F31/30
Filed: 1917-03-29
Abstract: 114,050. Smith, E. F. March 29, 1917. Inking-apparatus. - To prevent endlong movement of the inking-rollers of a printing-machine, the bearing at one end of each roller is provided with a cheek adjustable so as to contact with a shoulder on the roller spindle and cause a corresponding shoulder on the other end of the spindle to engage with the inner face of the bearing at that end. As shown, the bearing proper 1 is provided with a check 3 which, by set-screws 6, can be adjusted so that its face 4 contacts with a shoulder 10 on the spindle 9 of the roller. The screws 6 are preferably swivelled to the cheek 3 and have enlarged central parts provided with tommy-holes 7. To facilitate access to the screws 7, the bearing 1 is preferably provided with a recess 8.
Patent GB-256136-A (GB)
Title: Improvements in drives for centrifugal machines
IPC: F16N7/36
Filed: 1926-02-18
Abstract: 256,136. Construction Franþaise d'Appareils de Laiterie. Jan. 13, 1926, [Convention date]. Addition to 254,991 and 256,132. Driving, suspending, and balancing.- The lubricating system described in the parent Specifications for a centrifugal machine driven as described in the parent Specification is modified by the addition of a small pump w on the lower end of the hollow shaft a below the lower ball bearings. The oil is drawn from the reservoir x by the pump and is passed up the passage y, the flow being regulated by the set-screw z. From the ducts 9 at the top of the apparatus the oil passes through the spring guide bearing h; one portion then flows through the bearing d and passage t to the reservoir, while the other portion flows along the spindle f to lubricate the socket k and the bearings u, e. The flow of oil may be viewed by sights 8, 10.
Patent GB-539548-A (GB)
Title: Improvements in the production of coloured film-forming materials, and of films, filaments and the like therefrom
IPC: C08J3/215
Filed: 1940-03-13
Abstract: 539,548. Cellulose derivative and synthetic resin compositions ; artificial filaments, films &c. ROBERTS, R. P. March 13, 1940, No. 4672. [Classes 2 (ii) and 2 (iii)] An aqueous suspension of a free leuco compound of a vat dye is mixed with a solution of a film-forming material in a water-miscible organic liquid in such proportions that, after the mixing, the film-forming material is still in solution. The solution is capable of yielding a coloured product on precipitation of the filmforming material. Filaments, films, and other shaped materials may be obtained by shaping and setting solutions of the coloured product. The dyestuffs are so finely divided that solutions of the coloured product can be passed without loss of colour through the filters associated with the spinning nozzles for making artificial filaments. The leuco compound is preferably formed by acidifying an alkaline vat and the acid used is preferably a solvent for the filmforming substance. Acetic acid may be added to the alkaline vat in such an excess that addition of the suspension of the leuco compound in the aqueous acid to the solution of film-forming material produces no precipitation, or another water-miscible liquid such as acetone may be added. to the aqueous acid solution of the leuco compound. After the film-forming material containing the leuco compound has been precipitated it may be washed and dried, during which oxidation with formation of the dye takes place. The oxidation may be completed during the subsequent extrusion of a solution of the treated filmforming material. If desired the filaments, films, or other articles produced may be treated with hydrogen peroxide. The solution of film-forming material may be spun directly after incorporating the suspension of leuco compound, but it is preferable to precipitate this solution and wash the product with water or hydrochloric acid solution and then bring the product again into solution before carrying out the spinning operation. In an example, Caledon Brilliant Blue 3G, purified by digestion with dilute hydrochloric acid, is made into a suspension in water. Dilute caustic soda solution is added and the mixture is heated. Hydrosulphite is added in order to form the leuco compound. -Glacial acetic acid is added and then a solution of cellulose acetate in acetic acid. The solution is poured into water. The complex is filtered off, washed, and dried. It is used as a colour master material for admixture to uncoloured cellulose acetate for spinning purposes. The process is applicable to the production of materials coloured with indigoid, thio-indigoid, anthraquinone, dibenzpyrene quinone, and other vat dyes. Caledon Jade Green, Indanthrene Golden Yellow RK, Durindone Red BS, Indanthrene Brilliant Violet BBK, Caledon Red BN, and Indanthrene Grey 6B, are specified. The film-forming material may be cellulose acetate or other cellulose ester or ether or polyvinyl acetate.