baber/WOPTO huggingface dataset:
Patent GB-152833-A (GB)
Title: Improvements in steam turbines
IPC: F01D11/02
Filed: 1919-09-03
Abstract: 152,833. Brown & Co., J., and Wood, W. H. Sept. 3, 1919. Casings.-Diaphragms for carrying the nozzle vanes of steam turbines have a body portion D and a central portion F surrounding the rotor spindle L; one or more supporting-members A pass through the body part D and are fixed at their ends to the parts D, F. The part D rests on the casing and a clearance between the parts is allowed for expansion when heated. Materials with different coefficients of expansion are chosen so that the body D just fills the space between the casing C and the part F when heated; for instance, the casing may be of cast steel, the part D of phosphor-bronze, and the part F of forged steel. The adjusting bolts A may be fixed by pins M and by hollow plugs K screwed into the diaphragm.
Patent GB-1092615-A (GB)
Title: Producing carbonyl compounds by an ozonization-reduction process
IPC: C07B35/04
Filed: 1966-05-16
Abstract: Organic carbonyl compounds are obtained by ozonizing organic compounds having carbon-carbon unsaturation in a participating solvent to yield at least one derivative containing a peroxy group which is then reduced with a sulphide of formula RSR1 wherein R and R1 may be alkyl, alkenyl, aryl, aralkyl, alkanyl or in which R and R1 are bridged to form a cyclic compound which may include a second sulphur atom e.g. tetrahydrothiophene or dithiane.  The solvents used are substantially inert to ozonization under the conditions used and are preferably alkyl alcohols, glycols and aliphatic carboxylic acids having 1-12 carbon atoms.  The solvents may be mixed with common inert ozonization solvents such as water, acetone and hexane.  The ozonization may be a batch or continuous process and commonly comprises passing a stream of oxygen containing ozone through a solution of the unsaturated compound at temperatures below 50 DEG C., e.g. 25 DEG  to 70 DEG  C.  The product may be obtained by distillation, extraction or cyrstallization, or by conversion to a solid condensation product using reagents such as 2,4-dinitrophenylhydrazine, semicarbazide and hydroxylamine.  In the case of naphthalene and phenanthrene the aldehyde product forms a complex with dimethyl sulphoxide, formed from the oxidation of CH3SCH3, but can be recovered by treatment with hydrochloric acid. Specified starting materials are naphthalene, phenanthrene, styrene, isosafrole, 4 - vinylpyridine, 4 - nitro-styrene, indene, cyclohexene, 1-octene, 1-do-decene, maleic acid, diethyl fumarate, dimethyl maleate and diethyl maleate.
Patent GB-833910-A (GB)
Title: Improvements in and relating to centrifugal machines
Inventor: KUHN CHRISTIAN
IPC: B04B3/06
Filed: 1958-07-07
Abstract: 833,910. Centrifugal strainer separators. MACHINEFABRIEK REINEVELD N. V. July 7, 1958, No. 21698/58. Class 46. A drum shaft 8 rotated by a drive 7 is connected to a screening drum 1 by annular membranes 10, 11 so that the drum may be simultaneously oscillated vertically by a rod 2 to which the drum is rotatably secured. The energystoring springs 4 may alternatively be mounted between the drum shaft 8 and the drum 1.
Patent GB-1479375-A (GB)
Title: Pneumatic-mechanical blind riveting tool
IPC: B21J15/06
Filed: 1975-05-21
Abstract: 1479375 Riveting GESIPA BLINDNETTECHNIK GmbH 21 May 1975 [25 May 1974(2)] 21708/75 Heading B3U In a blind riveting tool, a draw body 29 of a mandrel gripping chuck 30 is movable to set a blind rivet by a lever 27 which is pivotally mounted at 26 in the tool housing 1 and which carries a roller 28 acted upon by pneumatic piston and cylinder units 2, 6 connected in series. In operation, a lever 24 of a control valve 18 is swivelled to allow compressed air in the valve 18, introduced through a connection 51, to escape to atmosphere, whereupon a valve member 34 is moved to the left by a spring 46. In this position of the value 18, compressed air can flow via a bore 54 into a chamber 15 of a first piston and cylinder unit 2, 6 and then into second and third piston and cylinder units 2, 6 by flowing through passages 13 and along a channel 12 between a rod 5 and sleeves 7 holding the pistons 6 together. The pistons 6 and rod 5 are thereby moved to the left to cause the rod 5 to pivot a two armed double lever 27 about an axis 26 whereby the draw body 29, which is pivotally connected to the lever 27, is moved against spring bias 31 to set a blind rivet. When the lever 24 is released, the valve member 34 is forced to the right by the compressed air flowing through the connection 51 to allow the air to enter the chamber 55 in front of the first piston 6 which together with the other two connected pistons 6 is returned to the initial position.
Patent GB-374679-A (GB)
Title: An extrusion press for the production of rod or tube-shaped bodies
IPC: B21C35/04
Filed: 1931-07-29
Abstract: 374,679. Squirting. KRUPP GRUSONWERK AKT.-GES., F., Buckau, Magdeburg, Germany. July 29, 1931, No. 21710. Convention date, Sept. 30, 1930. [Class 83 (iv).] Billet-piercing.-An extrusion press, for producing rod or tubular bodies, with movable receiver and press ram has a matrix and holder transversely slidable on a stationary cross-bar to facilitate inspection and removal. A closed frame press, Fig. 1, with movable press ram 3, receiver 4 and billet-piercer 22, has guides 10, arranged on the cross-bar 5, in which a slide 9 carrying the matrix 8 is movable by piston means 12, Fig. 2; when the slide 9 is in its extreme position, Fig. 3, an opening 9<1> registers with another opening 11 in the cross-bar and allows a billet which has become unworkable to be forced from the machine ; a secondary piston 15 may also be utilized in this position to remove the matrix 8 or matrix holder 7. A severing device (not shown), moving with the receiver, is provided for cutting off the workpiece at the end of an operation. The matrix holder may be mounted on an oscillating carriage instead of the slide described above.
Patent GB-760861-A (GB)
Title: Improvements in or relating to explosion suppression device
Inventor: CORNFORD MARVIN GENE
IPC: B64D37/32
Filed: 1954-07-26
Abstract: 760,861. Explosions, preventing. NORTHROP AIRCRAFT, Inc. July 26,1954, No. 21730/54. Class 47. A cylindrical container 11 having a permeable wall 20 of woven metal or fibreglass strands or perforated sheet metal is inserted into the filler well opening 16 of a fuel tank 10, and filled with small pieces of dry ice 22, whereby carbon dioxide passes into the tank to mix with the fuel vapour. A cover 25 is not secured and can therefore be raised by the gas when a certain pressure is reached to allow the gas to escape.
Patent GB-492257-A (GB)
Title: Improvements in or relating to photographic light sensitive elements
IPC: G03C7/26
Filed: 1937-02-15
Abstract: 492,257. Photographic emulsions. KODAK, Ltd. Feb. 15, 1937, No. 21733/38. Convention date, June 9, 1936. Divided out of 492,162. [Class 9S (ii)] Alteration in acidity or hydrogen ion concentration of photographic gelatine emulsion layers is prevented by buffering the emulsion in the range pH5 to pH10 by adding to the wet emulsion before coating 0À15 to 1À0 per cent by weight on the wet emulsion of a substantially colourless organic amino compound or compounds, the compound being an arylamine or aralkylamine containing one aromatic nucleus, or an aliphatic amino-carboxylic acid, or an aliphatic amino-sulphonic acid, or an amidine, the compound being inert with respect to silver halides and having a pKa value between 5À5 and 9À5 or a pKb value between 4À5 and 8À5, and having sufficient water-solubility to avoid crystallization in air-dry gelatine. A suitable amount of the compound is 0'15 per cent by weight on the wet emulsion. Compounds referred to are alpha-amino-n-butyric acid, taurine, ethylene diamine, dimethylbenzylamine and guanidine. The use of hydroxylamine hydrochloride is also referred to. Positive, negative, X-ray, and print-out emulsions may be treated, and the silver halides used in the emulsions may be silver chloride, bromide or iodide. Specification 492,162 is referred to.
Patent GB-714597-A (GB)
Title: Improvements in lasts
Inventor: MOBBS JOHN BAKER
IPC: A43D3/02
Filed: 1951-09-17
Abstract: 714,597. Lasts. MOBBS & LEWIS, Ltd. Aug. 21, 1952 [Sept. 17, 1951; Oct. 17, 1951], Nos. 21758/51 and 24243/51. Class 17(1) The forepart 2 of a two-part last has a slightly curved surface 3 stepped from a flat surface 5 which contact flat faces 4, 6 respectively of the heel part 1 when the last is extended and allows a translatory sliding upwards and forwards when the last is broken, so that it shortens from the beginning of the motion. The parts 1, 2, are connected by a link 13 housed in slots 9, 11 and mounted on pins 16, 17, the latter engaging with a slot 18 to allow lost motion. Springs 19 are disposed against each side of the link. A locking member comprising an angled lever 20 pivoted on a pin 21 has a nose 23 which engages a bulbous part 15 of the link 13 with a camming action to assist in completing the straightening of the last and its locking in that position. A ball catch 27 holds the lever 20 in the locked position and a bar 25 housed in a recess 8 in the top of the last allows manual manipulation of the locking member.
Patent GB-1304420-A (GB)
IPC: H04Q3/54
Filed: 1970-05-06
Abstract: 1304420 Automatic exchange systems WESTERN ELECTRIC Inc 6 May 1970 [9 May 1969] 21775/70 Heading H4K Calls abandoned before dialling is complete are dealt with by an originating register which clears its store of any digits so far received but, for a period, holds the connection to the erstwhile calling subscriber and reconnects dial tone in anticipation of a renewed call attempt. The arrangement is based on the observation that the majority of such abandoned calls are followed immediately by an attempt to originate a new connection. By holding the originating connection to serve a renewed call attempt the marker is relieved of a burden. The invention is described in detail as a modification of the No. 5 cross-bar system as described in U.S.A. Specification 2,585,904. The loop-disconnect pulse counter and 2-out-of-5 coding relays are described together with the digit steering and register circuits, a timer being incorporated in the release circuits to govern clear down of the digit registers and to effect the preparation of a circuit for dial tone applied for a period pending reseizure failing which the originating connection is fully released. It is said that the invention can be applied to the No. 1 Electronic Switching System.
Patent GB-404890-A (GB)
Title: Improvements in or relating to locks
IPC: E05B47/06
Filed: 1933-08-04
Abstract: 404,890. Electrically - controlled latches. WALKER, R. M., 2533, Chilton Way, Berkeley, California, U.S.A. Aug. 4, 1933, No. 21962. [Class 44.] A latch 6, particularly for a motor car, is operated from outside by a follower 17 through the medium of a sliding plate 11 which is prevented from full inward movement by a spring-pressed pivoted lever 23 which normally lies in its path but can be removed therefrom by a solenoid 27, the armature of which is pivoted to the lever 23 ; the solenoid is energized when a switch 33 is closed by a lug 31 on the plate 11, provided a second switch 38 has been previously closed. While the second switch 38 is open, the switch 33 is ineffective and the latch cannot be withdrawn. Separate springs 7 and 8 are provided for the latch 6 and the plate 11 respectively. The latch is withdrawn from inside by a rod 13 coupled to the plate 11 by a pin and slot connection and operated by a handle. Movement of the follower 17 is limited by a shoulder 19 abutting against the casing 5 at 20. In a motor car having a number of latches, all except one may be electrically controlled as above, and the one latch may be locked by key operated mechanical means which simultaneously opens the switch 38.
Patent GB-244816-A (GB)
Title: Improvements in or relating to packing or jointing rings
IPC: F16L23/22
Filed: 1924-09-18
Abstract: 244,816. Close, H. A. Sept. 18, 1924. Joint-making packing.-Packing rings or discs &c. are made from asbestos or millboard &c. with reinforcing layers of wire gauze, or plain perforated sheet tin, brass, or lead. The metal layers may be embedded in moulded packing during manufacture or layers of non-metallic material a and metal sheets b may be coated with adhesive and consolidated by pressure. Reference has been directed by the Comptroller to Specifications 3567/89 and 15622/93.
Patent GB-829532-A (GB)
Title: A process for the evaporation of foaming liquids
IPC: B01D3/06
Filed: 1958-07-10
Abstract: A process for the flash evaporation of framing liquids, liquid mixtures or solutions, comprises introducing the mixture or solution to be evaporated tangentially into a flash vessel at such a rate that the wall of the flash vessel is entirely or almost entirely moistened.  In an example, a mixture of 15% of sodium alkyl sulphate, 15% of isopropyl alcohol, 15% of a low boiling gasoline and 55% of water was evaporated by introducing the mixture tangentially into a cylindrical flash vessel, the lower part of which tapered inwardly to form a truncated cone so that the walls of the flash vessel were entirely moistened, an evaporation rate of 11,000 kgs. per hour was obtained.
Patent GB-531740-A (GB)
Title: Improvements in pick-ups for sound reproduction
IPC: G11B3/42
Filed: 1939-07-31
Abstract: 531,740. Gramophone pick-ups. PHILIPS LAMPS, Ltd. July 31, 1939, No. 22226. Convention date, Aug. 2, 1938. [Class 40 (ii)] An electric pick-up having a non-interchangeable needle is detachably connected to the pick-up arm so as to be easily replaceable when the needle is worn out. As shown in Fig. 1, the pick-up arm 10 is moulded with an open-ended housing 11 for receiving the pick-up 18, which is held in place by spring catches 12, 13 serving also to establish connection between leads 23, 24 in the pick-up arm with the armature winding 22 in the pick-up. In a modification, the pickup is held in the housing 11. by a screw, and in another modification, Fig. 3, the pick-up is attached to arms 32, 33 by plug and socket connections 41, 43 and 42, 44. This pick-up is as described in Specification 510,297, [Group XXXIX].
Patent GB-614764-A (GB)
Title: Improvements in and relating to electrical contacts for receiving terminal pins or plugs
IPC: H01R33/76
Filed: 1946-07-26
Abstract: 614,764. Two-part couplings; holders for discharge tubes. CARR FASTENER CO., Ltd., and HEATH, C. W. July 26, 1946, No. 22311. [Class 38 (i)] An electrical socket contact is formed from a strip of sheet metal, Fig. 6, folded on the lines e, A and j to provide a pin receiving socket. Projecting lugs 6, 6a are provided for securing the contact on to a base, and the parts band c of the metal strip form a socket of triangular cross-section arranged to provide a three-point contact 3, 4, Fig. 5, with an inserted pin. The part 2, Fig. 3, is provided with a strengthening rib 9.
Patent GB-404573-A (GB)
Title: Kinematograph film spools
IPC: G03B21/32
Filed: 1933-08-10
Abstract: 404,573. Kinematograph film spools. KOLB, O. K., 25, Collingham Gardens, Earl's Court, WENDER, E., 62A, Finchley Road, St. John's Wood, and BRITISH ACOUSTIC FILMS, Ltd., 142, Wardour Street, all in London. Aug. 10, 1933, No. 22397. [Class 97 (i).] A kinematograph film spool consists of two substantially symmetrical parts 1, 2 moulded of the material known under the Registered Trade Mark " Bakelite " or of the like artificial resin. Each part comprises a flange 3 and a hub-portion 5. Each flange 3 has holes 12 and each hub portion a slit 7 parallel to the axis and also the recess 9. A flexible and elastic leading strip 8 is provided at one end with a thicker end portion which fits into the recess 9 and at the other end with a spring clip 10 for clamping the film. The two sections are held together either by screws 11 or by resilient plugs and sockets.
Patent GB-170677-A (GB)
Title: Improvements relating to coatings or linings for moulds, cores and the like
IPC: B22D13/10
Filed: 1920-07-28
Abstract: 170,677. Hurst, J. E. July 28, 1920. Mould materials.-Metal moulds used in centrifugal casting machines are prepared for use by applying to the rapidly rotating mould a powdered substance or mixture that melts to form a thin viscous flexible skin or film on the surface of the mould at a temperature somewhat below the casting temperature. The film has a comparatively low thermal conductivity. One or more of the following salts mav be used: a chloride, nitrate, silicate, aluminate, fluoride, borate, sulphate, or carbonate, with or without metallic oxides as lead oxide, or boric acid may be employed. The melting-point of the material should be between 650 and 850‹ C. for use in connection with cast iron.
Patent GB-1184720-A (GB)
Title: Pressure Reducing Regulators for Gaseous Fluids
IPC: G05D16/10
Filed: 1967-05-15
Abstract: 1,184,720. Valves. COMPAGNIE DES COMPTEURS. 15 May, 1967 [18 May, 1966; 20 Dec., 1966], No. 22417/67. Heading F2V. A combined gas pressure regulator and safety valve comprises safety and regulating closure members 10, 11 carried by a common stem 9 secured to a diaphragm 4. The latter is loaded by springs 5, 14 the former of which is not effective until the outlet pressure as communicated to chamber 16 enters the diaphragm to disengage a flange of spring seat 7 from housing flange 8. Thus, when the system is idle or the gas supply fails, spring 14 urges the stem downwards to seat the safety closure member 10. To open the valve, a by-pass closure member 23 is unseated by depressing button 21 to allow gas flow to the outlet 3 via passages 26, 25, 27. When the outlet pressure rises to a value predetermined by the load exerted by spring 5, closure member 11 seats. In the modified bypass valve of Fig. 4 (not shown), resilient closure member (32) is unseated by pulling knot (21) to allow gas flow via passages (31, 26, 27).
Patent GB-677010-A (GB)
Title: Improvements in and relating to type wheels for accountancy and like machines
IPC: B21H7/00
Filed: 1949-08-30
Abstract: 677,010. Making type wheels. OFFEN, R., and GERRARD ENGINEERING & MANUFACTURING CO., Ltd. June 30, 1950 [Aug. 30, 1949], No. 22526/49. Classes 83 (ii) and 83 (iv). [Also in Group XVI] Die-rolling.-A method of forming type wheels for accountancy, ticket and like machines comprises rolling a metal blank 3 under pressure in contact with a master cylinder 1 having characters 2 engraved in intaglio on its periphery whereby the metal of the blank is caused to flow into the recesses of the master and produce the characters in relief on the blank 1. The master cylinder 1 is carried by a mounting 4 pivotal on a spindle 5 and is urged into pressure contact with the blank 3 by a pin 7 carried on an arm 6 forced in the direction of the arrow by approximately 0.031 inches as the surface 8a of cam 8 travels past the arm follower 9. The pin 7 is adjustable on the arm 6 and is progressively advanced as the cam is rotated, bringing the blank 3 and master cylinder 1 close together at the rate of 0.001 inches per revolution. The type faces may be milled and the burr on the blanks may be removed by grinding. In addition the metal between the characters may be removed by an axial milling operation to provide spaced radial projectors which each carry a character. The drive from the master cylinder to the blank may be by gearing or additionally by recesses in between characters on the master cylinder working with gradually-formed projections on the blank which are removed by the grinding process. The blanks may be of mild steel.
Patent GB-742618-A (GB)
Title: Improvements in or relating to stockings and method of making the same
IPC: D04B1/26
Filed: 1953-08-17
Abstract: 742,618. Knitttng. SCOTT & WILLIAMS, Inc. Aug. 17, 1953 [Dec. 19, 1952], No. 22621/53. Class 74 (2). A sheer knitted stocking has an area of crepe appearance characterized by loops of different sizes and shapes and of random distribution resulting from its being knitted from at least one permanently crinkled yarn and at least one plain (i.e. smooth, uncrinkled) yarn. The stockings may be fully fashioned or multifeed circular knit. Courses 14 of plain yarn may alternate with courses 16 of a crinkled yarn, or pairs of courses of plain yarn with single courses of crinkled yarn, or single courses of plain yarn with pairs of courses of crinkled yarn, or pairs of courses of plain yarn with pairs of courses of crinkled yarn. Crinkles 18 show up as irregularities in the loops. At 20 are indicated loops of crinkled yarn displaced out of the average surface of the fabric, to produce overlaps of portions of the loops. The plain loops are also displaced, as at 22, out of walewise alignment. The fabrics may be used in the sheer parts (e.g. leg and instep) of a stocking and in the heavier parts (e.g. high splice, heel, toe, reinforced sole or welt). In circular knit stockings, nylon plain yarn is preferably used in the leg, whilst, in the welt, or shadow welt, the plain yarn is of preshrunk nylon or of a material not subject to shrinkage in the subsequent boarding operation. The yarns may be monofilament or multifilament and the plain yarns may be of silk, rayon, or the like. Specifications 651,961, 662,347 and 676,522 are referred to.
Patent GB-144160-A (GB)
Title: Improvements in artificial teeth
IPC: A61C13/10
Filed: 1919-09-15
Abstract: 144,160. Smith, W. L. Sept. 15, 1919. Teeth, artificial.-Relates to teeth of the kind in which securing-pins are soldered to platinum anchor members embedded at the base of holes in the teeth, and consists in the use of a cupshaped anchor member 9 having a concave base 10 co-operating with a pin 14 having a flat base 15, so that a space is left between them to contain the solder 16. The side wall 11 of the cup 9 is straight, and is formed with a flange 11<1> at its outer end which does not extend to the top of the hole in the tooth body. During moulding, the anchor 9 is supported, as shown in Fig. 1, on the peg 6, which serves to form the recess in the tooth. Specification 113,738 is referred to.