baber/WOPTO huggingface dataset:
Patent GB-550504-A (GB)
Title: Improvements in or relating to the manufacture and moulding of resinous compositions
IPC: C08L7/00
Filed: 1941-07-08
Abstract: 550,504. Moulding agglutinated fibrous sheets. BAKELITE, Ltd. July 8, 1941, No. 8626. Convention date, July 9, 1940. [Class 87 (ii)] [Also in Group VIII] A fibrous mouldable composition is made by laying slivers for example from garnets or cards on a conveyer belt to form a sheet, applying adhesive and thereafter impregnating with a resinous binder either fused or in solution. The slivers may be of cotton, hemp, jute or sisal and may be laid along or across the sheet or at any angle, e.g. one quarter lengthwise, one quarter crosswise and one quarter in each of two directions at an angle of 45 degrees. The adhesive may be rubber, e.g. in solution in naphtha, artificial rubber, rubber substitutes, or polyvinyl resins. The resin may be thermosetting, e.g. phenol-formaldehyde, or thermoplastic. Impregnation may be effected by passing the sheet between two permeable supporting belts through a solution, or applying rolls may be used. Pigments and coating materials, e.g. wood flour, may be incorporated in the sheet, and rubber sheets may be combined with the sheets prior to moulding. Laminated articles and safety belting may be moulded from the sheet. Moulding may be carried out by placing the sheet over the cavity of a mould and pressing the sheet into the cavity by a plunger, with or without heating. The sheets may be pre-heated.
Patent GB-894036-A (GB)
Title: Electric cable winders
IPC: A47L11/30
Filed: 1959-03-12
Abstract: 894,036. Slack prevention. FILLERY, G. T. March 12, 1959, No. 8671/59. Classes 78 (2) and 78 (5). Cable 12 supplies electricity from a source to the electric motor (not shown) of the mobile swarf collecting machine 50 and the slack therein is taken up on stationary drum 16 fixed to the machine. The cable passed through hollow handle 19, the handle being pivoted at 18 so that, upon manual rotation thereof, the cable is wound upon the drum. Specification 894,035 is referred to.
Patent GB-377923-A (GB)
Title: Improvements in or relating to collapsable tubes or containers
IPC: B65D35/36
Filed: 1932-03-23
Abstract: 377,923. Collapsable tubes or containers. MARCHER, I., 56, Ramperstorfergasse, Vienna. March 23, 1932, No. 8704. Convention date, April 21. [Class 11.] Means for spreading semi-liquid materials extruded from collapsable tubes and the like comprises a sponge, brush, or like spreading- device permanently but movably mounted in the mouth of the tube so that it is partly projected when the material is squeezed out, but can be pushed back into the tube after use. The spreading-device may consist of one or more small sponges, pieces of fabric, rubber, or leather, pads, brushes or hair pencils, felt plugs, or the like, which are held by suitable clips, pegs, springs, quills, cases, or the like, which may be resilient to permit of the introduction of the device into a filled tube. When completely projected the spreading-member may act as a stopper to prevent further extrusion of the contents. In Fig. 1, a sponge S is held by a spring K in the mouth H of the tube, and the contents are extruded through passages formed in the sponge. In Fig. 7, the spreading-device is a rubber flap A which is held in its protruded position by a shoulder B formed on it, and is grooved to form passages R. Fig. 10 shows a hair pencil held in its projected position by a spring. In Fig. 21 an extension F is shown as screwed over the mouth of the tube to support the hair pencil. The spreading-device may be a conical or spherical rubber member with a retaining flange and may have a through passage.
Patent GB-1329923-A (GB)
Title: Vehicle attachment for picking up mown grass leaves or the like
IPC: B25B5/12
Filed: 1972-02-25
Abstract: 1329923 Mowers A SCHMIDT SNR A SCHMIDT JNR and L SCHMIDT 25 Feb 1972 [23 July 1971] 8768/72 Addition to 1282085 Heading A1F [Also in Divisions El  and B8] The roadside verge suction pick-up attachment of the parent Specification 1282085 is trailed behind (Figure 1) or (Figure 2) mounted on the rear, rather than the front, of a collecting vehicle 15. As in the parent specification a nozzle 9 on an angled suction pipe 21-24 rests on wheels or skids 25 so that it follows the ground contour, lifting and twisting movements of the nozzle being allowed by ball races 22, 23, but can also be lifted by a ram 19. In Figure 1 the attachment is laterally displaceable on guides 28 by a ram (not shown) on the trailer 41; in Figure 2 the laterallydisplaceable attachment is removably mounted on the vehicle 15 by a lift linkage 6-7 and interengages parts 33-34-35, permitting self assembly and is provided with a seat 42 and feet 36, 37. In modifications (a) the trailer has three or four wheels and is steerable, (b) the vehicle 15 has an attachment mounting plate 34 both at front and rear; (c) the suction pipe can be folded away about a vertical axis for transit - preferably so that the nozzle lies on or against the trailer; (d) the horizontal portion 24 of the suction pipe is telescopically extendable by a ram.
Patent GB-954882-A (GB)
Title: A double cone friction clutch
IPC: F16D25/0632
Filed: 1963-03-05
Abstract: 954,882. Friction clutches. LOHMANN & STOLTERFOHT A.G. March 5, 1963 [March 6, 1962], No. 8772/63. Heading F2C. In a double-cone clutch the friction members 5 are engaged by fluid pressure actuator units 7, 8 against the force of axially prestressed conical resilient members 6, each of which comprises a pair of abutting annular members 6b secured to an inner hub 6a and outer rim members 6c. The pressure fluid is supplied to the actuator units through an axial passage 12 in the driven shaft 3 and a flexible pipe 13 with a distributer 14 connected to the actuators by radial pipes. A double-coned centring disc 10 is provided, and radial passages 15 permit the flow of cooling air.
Patent GB-599073-A (GB)
Title: Improvements in sulphur recovery
IPC: C01B17/05
Filed: 1944-05-09
Abstract: Sulphur is produced by contacting gases containing hydrogen sulphide and sulphur dioxide with an aqueous liquid in which is maintained an alkali metal sulphite in solution; the sulphur is separated and the solution used for treating further amounts of the gases.  Sulphur dioxide may be first passed into the solution to form the bisulphite, followed by hydrogen sulphide to re-form the sulphite.  The solution may contain 1-20 per cent., preferably 5-10 per cent., of alkali metal sulphite, and may be heated or cooled during the reaction.  The Specification as open to inspection under Sect. 91 comprises also the use of solutions of sodium carbonate, sodium hydroxide, and sodium sulphate.  The subject-matter does not appear in the Specification as accepted.
Patent GB-844588-A (GB)
Title: Improvements in heat exchange elements
IPC: F28D7/10
Filed: 1959-03-13
Abstract: 844,588. Tubular heat exchangers. HUET, A. March 13, 1959 [March 14, 1958], No. 8827/59. Class 64(3)  A heat exchange tube is formed from a tube a of star section sandwiched between two concentric tubes b and c to provide two passages A and B for fluids in heat exchange relationship and is characterized by at least one of the passages being provided with surfaces presenting corrugations in the axial direction of the tube. The corrugations may be formed as at g on the exterior of the internal tube or on the interior of the external tube or may be in the form of corrugated strips spot-welded at intervals to the tubes. The wall of the star section a may also be corrugated in a longitudinal direction.
Patent GB-546013-A (GB)
Title: Fish-plating systems for railway or like lines
IPC: E01B11/02
Filed: 1940-05-18
Abstract: 546,013. Railway fishplates. TECALEMIT, Ltd. May 18, 1940, No. 8898. Convention date, May 19, 1939. [Class 104 (ii)] Between the contacting surfaces of fishplates 1 and rail 2 are arranged two wear plates 3, 4 of harder metal than the fishplates and rails, and preferably inoxidizable, such as stainless steel. The surfaces of these plates in contact, with 1 and 2 are roughened &c. to prevent relative movement, while their inside surfaces are made as smooth as possible to facilitate relative movement. The plates may be flanged at 3a, 4a to prevent lateral displacement.
Patent GB-884938-A (GB)
Title: Improvements relating to gate valves
Inventor: RUTHERFORD ROBERT
IPC: F16K3/18
Filed: 1959-03-16
Abstract: 884,938. Valves. TRIANGLE VALVE CO. Ltd. March 15, 1960 [March 16, 1959], No. 8944/59. Class 135. The valve member a of a gate valve has a circular aperture c for registration with annular seats f, g when the valve is open and a pair of discs i, j which are pressed outwardly against the seats when the valve is closed. Additional openings w in the valve member permit flow for as long as possible during movement of the valve member. A disc carrier h, connected to the valve stem b, encircles with clearance a ring m which passes over bosses k on the discs to limit tilting of the discs and has an inclined face q which coacts with an inclined face p of a disc spreader o, the latter being mounted with clearance on a projection r of the carrier h and having lateral extensions which engage projections (not shown) in the valve housing so that movement of the spreader is arrested during closing movement of the valve to cause the discs to be pressed outwardly.
Patent GB-889426-A (GB)
Title: Improvements in and relating to lapping machines
Inventor: BELL ROBERT
IPC: B24B37/10
Filed: 1959-03-16
Abstract: 889,426. Grinding. IMPERIAL CHEMICAL INDUSTRIES Ltd. March 16, 1960 [March 16, 1959], No. 8954/59. Class 60. A machine for lapping plane surfaces comprises a horizontal table 14 which is mounted for reciprocation in its own plane and has an upper true surface 16 adapted to act as a lap for articles placed thereon. The machine may consist of one or two tables which are of soft cast-iron formed with shallow grooves to assist the distribution of an abrasing medium, such as silicon carbide in oil. The tables are mounted on balls 4 located in guides 3, 13 and are reciprocated at between 100 and 200 complete reciprocations per minute by cranks 5 driven by an electric or fluid-operated motor, the amptitude of the stroke being between 1 inch and 2 inches. The articles to be lapped, such as the discs or wedges of gate valves, are placed on the upper surfaces and relative movement between the articles and surfaces is effected by the inertia of the articles. The articles are retained on the surfaces by upstanding edges 17 which are covered with a resilient material so that as articles approach the edges they rebound therefrom.
Patent GB-567092-A (GB)
Title: Improvements in or relating to gun mountings
IPC: F41A27/06
Filed: 1941-07-16
Abstract: 567,092. Gun mountings. MOTLEY, L. July 16, 1941, Nos. 8985 and 14031. Addition to 567,062. [Classes 92 (i) and 92 (ii)] The gun mounting for use against aircraft, which is adapted to permit of more convenient gun depression when attacking ground forces as described in the parent Specification, is according to the present invention arranged to carry a plurality of guns and a single sighting device therefor. In the form shown in plan in Fig. 2, the gun support 1 is provided with bearings for shafts 3, 5 to which are connected the short telescopic arms 2, 4 of unequal length that carry the guns. Similar short arms are provided on the shafts 3, 5 to carry a sight bar 11 situated between the guns and movable in unison therewith when the guns are moved forwardly to the position for downward fire. The forward and rearward adjustments are limited by stops 6, 7 engaging the support 1. Specifications 491,217 and 567,061 are referred to.
Patent GB-689393-A (GB)
Title: Process for the preparation of 10-amino-decanoic acid
Filed: 1950-04-12
Abstract: 10-Amino-decanoic acid is prepared by causing a solution of ammonia, preferably an aqueous, alcoholic or aqueous alcoholic soluton to react with 10-bromo-decanoic acid.  In examples: (1) 10-bromodecanoic acid is treated with ammonia and the product is recrystallized after acidification in a hot aqueous solution, separation of imino-didecanoic acid and the addition of ammonia; (2) a similar process is carried out using a reaction medium containing ethyl alcohol and water.  10-Bromo-decanoic acid is stated to be prepared by the oxidation of 1-bromo-10-undecylene or by the action of an acetic acid solution of hydrobromic acid upon 10-hydroxy-decanoic acid. Specification 591,027 is referred to.
Patent GB-664072-A (GB)
Title: Improvements connected with louvres for electric lighting fittings
IPC: F21V11/00
Filed: 1949-04-02
Abstract: 664,072. Making gratings. REVO ELECTRIC CO., Ltd., and FELTON, A. E. April 3, 1950 [April 2, 1949], No. 8998/49. Class 83 (ii) [Also in Group XI] A louvre assembly for an electric lighting fitting is formed by a number of slats 5 each having pairs of oppositely directed integral tongues 5a, 5b which are bent at right angles to the plane of the slat and spot-welded flatwise to a surrounding frame 4, 7. As shown each end of each slat 5 is stepped and formed with a pair of tongues 5a, 5b lying on opposite sides of the slat with respect to each other and the corresponding tongues at the other end of the slat, the tongues 5b being spot-welded to a subsidiary frame 7. Slats 6, which lie longitudinally of the fitting, have the equivalent of the tongues 5b spot welded to the sub-frame 7.
Patent GB-194165-A (GB)
Title: Production of red basic dyestuffs
Filed: 1922-03-29
Abstract: Dialkylamidoacridinium salts, more particularly the tetramethyldiamido-methylacridinium salts, are converted by bromination into other dyestuffs dyeing redder shades.  On treatment with acids or acid salts the brominated products yield still other dyestuffs which dye or print in more bluish shades; the change also occurs during bromination if sufficient acid is present.  Halogenated acridines such as those described in Specification 165,721 do not undergo this transformation unless first converted into acridinium salts by means of dimethylsulphate or the like.  In examples, bromination products, and the transformation products thereof, from the following acridinium derivatives are described:- tetramethyldiamidomethylacridinium methyl sulphate, tetramethyldiamido-phenyl-methylacridinium methyl sulphate (made by action of dimethyl sulphate on Acridine Orange R), and the oxyethyl-acridinium chloride made by action of ethylene chlorhydrin on tetramethyl diaminoacridine; the transformation products are in each case isolated as double compounds with zinc chloride.  The Provisional Specification refers also to the use of chlorine in place of bromine.
Patent GB-1176603-A (GB)
Title: A process for producing stampings for sheet metal.
IPC: B21D22/02
Filed: 1968-02-26
Abstract: 1,176,603. Making hollow-ware. FORD MOTOR CO. Ltd. 26 Feb., 1968 [14 March, 1967], No. 9125/68. Heading B3A. A method of making stampings from sheet metal, e.g. for automobile petrol tanks, comprises preparing in sequence a plurality of sheets of metal of suitable size to be formed into stampings, and before the stampings are produced locally imparting to each of the prepared sheets a non-structural deformation located or shaped so that the sheet cannot nest tightly with the immediately preceding or following sheet. Sheets are severed from a coil and are formed with dimples A, B, C, D so that they may be easily separated after stacking. The dimples in adjacent stampings may be out of alignment with each other, or they may be in alignment B, C<SP>1</SP>, A, D<SP>1</SP> but of non-nesting form. The dimples may be trimmed off the final product.
Patent GB-384878-A (GB)
Title: Improvements in or relating to sealed boxes, cans or like containers
Filed: 1932-03-30
Abstract: 384,878. Opening means for cans &c. AKTIEBOLAGET TRANSITORIA, 37, Birger Jarlsgatan, Stockholm. March 30, 1932, No. 9128. Convention date, March 30, 1931. [Class 66.] In a can &c. of the type formed with a weakened part adapted to be broken at one point by an opening member attached to the exterior and then torn out by pulling on the member, a reinforcement element is provided on the inner surface of the wall, opposite to the point of attachment of the opening member. Figs. 2, 3 show the disposition of the reinforcement element g for an opener adapted to be raised to effect breaking and thereafter pulled as indicated in Fig. 3 to remove the weakened part, the edge being set slightly in advance of the edge of the opening member e. Fig. 4 shows the two edges registering in the case of an opener o, m adapted to be pulled upwardly to effect breaking and tear out the weakened part.
Patent GB-925643-A (GB)
Title: Improvements in or relating to vacuum brake installations
IPC: B60T13/46
Filed: 1960-03-15
Abstract: 925,643. Vacuum braking systems. KNORR-BREMSE G.m.b.H. March 15, 1960 [March 17, 1959], No. 9156/60. Class 103 (1). A vacuum brake installation for rail vehicles, comprises a brake cylinder 9 divided into chambers 7, 35 by a piston connected to operate the brakes, and a valve device 13 for connecting chambers 7, 35 during brake release, an additional valve 41, controlled by piston 49 acted on in the valve closing direction by a spring 49 and pressure in chamber 35, being connected into the pipe between chambers 7, 35. With normal vacuum in train pipe 1, the valve 27, 29 in valve 13 is closed by a spring and valve 53, 57 in valve 41 is opened by atmospheric pressure above piston 49; the whole installation being evacuated via pipe 19, one-way valve 45 and throttle 3. On braking, the rise in train pipe pressure, acts via valve 5 in chamber 7 to apply the brakes, the equal pressures in chambers 11, 17 of valve 13 preventing opening of valve 27, 29. On brake release, vacuum in train pipe 1 acts via pipe 19 in chamber 17 to raise piston 15 and open valve 27, 29 to connect the brake cylinder chambers 7, 35 via chambers 25, 31, 55, 37 for rapid release. The installation then slowly evacuating via throttles 3, 43 and one-way valve 45. After repeated applications and releases in quick succession, the pressure in chamber 35 and reservoir rises until at a predetermined value this pressure and spring 47 raises piston 49 to close valve 57, 53, chamber 7 now being exhausted via throttle 3; normal brake release only occurs when the pressure in reservoir 33 and chambers 35 has dropped below that value when valve 53, 57 opens. This ensures that sufficient vacuum exists in chamber 35 for brake application.
Patent GB-1375903-A (GB)
Title: Apparatus for winding fabric onto cores
IPC: D06H7/02
Filed: 1972-02-28
Abstract: 1375903 Winding webs P ALBERTO 28 Feb 1972 [27 Feb 1971 9 Feb 1972] 9157/72 Heading B8R Apparatus for a winding fabric web 1 on to a core 16<SP>11</SP> having a length of paper 39<SP>1</SP> already wound thereon comprises gripper means 3, 3<SP>1</SP> for gripping and transporting the web to a winding station, transverse cutting means, e.g. cutting discs 8, 8<SP>1</SP> on a reciprocable carriage, for cutting off a desired length of web, means, e.g. a reciprocable carriage 13 and movable mandrels 20, 20<SP>1</SP>, for moving a core firstly to a station 16<SP>111</SP>, Fig. 4, where it is rotated in one direction to partly unwind the paper 39<SP>1</SP> from the core with the aid of air jets 36 and then to the winding station where it is rotated in the opposite direction to wind on the web, and means for removing a fully wound web roll. The grippers 3, 3<SP>1</SP> may be mounted on a reciprocable carriage 28, Fig. 1, or on pivotable levers (28<SP>11</SP>), Fig. 2 (not shown), the length of web to be cut being assessed by a measuring device supplemented by a sensor 7 which detects register marks 6 spaced longitudinally of the web. The marks may also denote a length of faulty web and may be in the form of phosphorescent, magnetic or metallic material, or holes or pleats in the fabric web detected by a photo-electric, pneumatic, electronic or mechanical sensor. In the case of a measuring cut, when a required length of web has been measured the grippers 3, 3<SP>1</SP> are clamped on to the web which is cut on a slotted table 4 subsequently pivoted down for the grippers to advance the new leading end of the web to the winding station where the grippers are tilted to feed the web between the new core 16<SP>11</SP> and unwound paper 39<SP>1</SP>. The core may be driven directly by mandrels 24 which engage it when deposited by the mandrels 20, 20<SP>1</SP> in a removable tray 23. Alternatively the core may rest on driven rollers (47), (X). In the case that a defective piece is to be cut out, during winding, the core 16<SP>11</SP> is stopped, the web cut and the faulty piece advanced by rollers (54), Fig. 6 (not shown), and deflected by air jets (56) into a trough (68), a further cut being made at the end of the faulty piece and the succeeding web being fed by reciprocable suction members (62) to the winding station between the core and trailing web end. Winding then continues with the measuring device taking account of the length of the cut out.
Patent GB-783119-A (GB)
Title: Improvements in asymmetrically conductive devices
IPC: H01L29/227
Filed: 1955-03-31
Abstract: 783,119. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 31, 1055 [April 1, 1954], No. 9427/55. Drawings to Specification. Class 37. A semi-conductor device such as a rectifier, transistor, photo-cell or photo-transistor comprises a body of cadmium telluride having zones of N- and P-type conductivity. Examples of accepter material for CdTe or Group I elements such as Li, Na, Cu, Ag and Au, as donors Group VII (b) element such as C1, Br and I, Group V (b) elements such as P and Sb, and Group III (b) elements such as Ga and In. Alternatively, or additionally, excess Te (i.e. deviations from the stoichiometric composition) may act as an acceptor, and excess Cd as a donor. In one example, an N-type is produced on a P-type body of CdTe by heating a contacting bead of In at 500 ‹ C. in a flow of nitrogen for 10 minutes. In a second example P-type CdTe is heated in a Cd vapour pressure of 2 atm. to 900‹ C. for 5 hours to become N-type, and a bead of Te on the crystal is then held melted at 500‹ C. for 10 minutes. Alternatively the heating of P-type material in Cd. vapour is continued only for 30 minutes to provide an external layer of N-type material. In a further example, CdTe containing 10<SP>18</SP> atoms of Ib per cc. is melted under Cd vapour pressure of 1 atm. at 1050‹ C., to sublimate an N-type layer of Cd Te-In on a quartz plate. The Cd vapour pressure is then reduced to superimpose a P-type layer.