baber/WOPTO huggingface dataset:
Patent GB-1314361-A (GB)
Title: Servo pressure transducer
IPC: G01L9/00
Filed: 1970-05-19
Abstract: 1314361 Measuring pressure electrically KISTLER INSTRUMENT CORP 19 May 1970 [24 June 1969] 24241/70 Headings G1N and G1L A force balance arrangement for measuring differential pressure comprises two bellows 92, 94 (Fig.10) arranged to rotate jointly about a pivot 98 by the differential pressure, by an amount sensed by a differential capacitor transducer consisting of movable electrode 108 and fixed electrode 120, 122. The change in capacitance is sensed in a bridge network (Fig. 23) and the amplified imbalance current, indicated on meter 264, is fed to rebalancing coil 110 to restore the moving members substantially to their normal positions by inter-action with the field of permanent magnet 112. Each bellows 92, 94 consists of a corrugated part which is soldered or otherwise attached along one side to a common strip 96. Other forms of bellows and strip combination are described.
Patent GB-1470995-A (GB)
Title: Motor assembly
IPC: A63H27/24
Filed: 1974-05-31
Abstract: 1470995 Mounting dynamo-electric machines MABUCHI MOTOR KK 31 May 1974 [1 June 1973] 24291/74 Heading H2A In a motor assembly comprising an electric motor having a cylindrical casing 1 received within a cylindrical mount 2 having mounting members 7 for attachment to a support 19, the centre of gravity of the assembly lies substantially in the common plane of the points of attachment of the mounting members to the support. The motor shown has a shaft 3 with an extension 15 carrying a propeller 16. The motor casing 1 and the mount 2 are held together with screws 11, with the possible interposition of spacing washers to ensure that the centre of gravity of the whole assembly lies in the plane of the mounting members 7.
Patent GB-1254281-A (GB)
Title: Printed circuits
Inventor: LEYLAND KENNETH
IPC: H05K3/28
Filed: 1968-05-22
Abstract: 1,254,281. Printed circuits. JOSEPH LUCAS (INDUSTRIES) Ltd. 14 May, 1969 [22 May, 1968], No. 24401/68. Heading H1R. In the manufacture of a flexible printed circuit a sheet of conductive foil, e.g. copper, is coated on one side with a layer of insulating material, e.g. PVC, which is then set or cured, the foil is formed into a pattern of conductors by an etch-resist process, a layer of insulating material, e.g. PVC, is printed on to the conductors so that the conductors are exposed at predetermined points, and the printed layer is set or cured. The insulating material may contain additives and the copper conductor may be provided with a coating of dendritic copper oxide to enhance bonding of the insulating material to the copper foil.
Patent GB-789695-A (GB)
Title: Improvements relating to electric plug and socket connectors
IPC: H01R4/30
Filed: 1955-08-25
Abstract: 789,695. Two-part couplings. NETTLE ACCESSORIES, Ltd., and GARNER, J. A. Aug. 21, 1956 (Aug. 25, 1955], No. 24440/55. Class 38 (1). In order to prevent a terminal screw 3 of a plug pin 2 becoming unscrewed due to vibration, the ends of a spring strip 4 riveted to the pin engage two sides of the head of the screw 3. Spring clips 12 are similarly provided for socket contact terminal screws 11 (Fig. 4) and are held in position by projections 14 from recesses 8. Each terminal screw may also pass through a hole in a projection on the spring clip to assist in holding the latter in position.
Patent GB-633400-A (GB)
Title: Improvements in or relating to h.f. heating apparatus
IPC: H05B6/78
Filed: 1947-09-05
Abstract: 633,400. Dielectric heating. AIRMEC LABORATORIES, Ltd., and WALKER, P. H. Sept. 5, 1947, No. 24549. [Class 39 (iii)] Loose fibrous or granular material, in layer form, is dried by its horizontal passage between plate electrodes, the upper electrode having a layer of insulating material on its underside, a current of dry air being passed between this covered underside and the opposing material surface. In a preferred embodiment, tobacco 10 is delivered through a shute 11 to a conveyer belt 12 passing between high frequency electrodes 15, 16, the upper electrode being covered, Fig. 2, with insulating material 18, which may be that known under the Registered Trade Mark " Mycalex." Air is blown continuously through a chamber 14 and electrodes by a fan 20, and may be heated by a heat exchanger 21 through which exhaust air from a radio-frequency generator 17 is passed. Alternatively, the insulating material 18 consists of bonded inorganic substances such as glass fibre bonded with silicone resin.
Patent GB-1263783-A (GB)
Title: Improvements in piezo-electric ignition devices
IPC: F23Q3/00
Filed: 1969-05-14
Abstract: 1,263,783. Piezo-electric generators. JUNKERS & CO. G.m.b.H. 14 May, 1969 [15 May, 1968], No. 24562/69. Addition to 1,210,110. Heading H2A. In a piezo-electric igniter according to the parent Specification the end of the housing 10 remote from the push-button is closed by a baseplate 31 having an inwardly bent edge 311 which engages over an outwardly bent flange 30 on said end of the housing. Tolerance between the base-plate and the components within the housing is taken up by a disc 32 selected from a range of thicknesses and which may be resilient.
Patent GB-792410-A (GB)
Title: Improvements in or relating to steroidal compounds
IPC: C07J5/00
Filed: 1954-08-24
Abstract: The invention comprises compounds of the formula <FORM:0792410/IV (b)/1> in which the 3-position is occupied either by a bivalent group convertible to keto by acid hydrolysis or by a pair of univalent groups together convertible to a single keto group by acid hydrolysis and compounds of the formula <FORM:0792410/IV (b)/2> in which the 3-position is occupied by a univalent group which is convertible to keto by acid hydrolysis.  In compounds of the first formula the 3-position may be occupied by cyclic ketal groups, e.g. ethylenedioxy, ethylenedithioketal or ethylene hemithioketal or by cyclic amine groups or by non-cyclic ketal groups, e.g. dimethyl ketal or dimethyl thioketal.  In compounds of the second formula the 3-position may be occupied by an enol ether group. Such compounds are obtained by treating a 1-acetaldehydo-2,4,b-dimethyl-2(b -ketopropyl) - 4 - keto - 1,2,3,4,4a,4b,5,6,7,8,10,10a-dodecahydrophenanthrene appropriately substituted in the 7-position (cf. Specification 792,411) with an alkaline reagent such as potassium hydroxide.  In an example 1-acetaldehydo - 2(b  - ketopropyl) - 2,4b - dimethyl - 4 - keto - 7 - ethylenedioxy - 1,2,3,4,4a,4b,5,6,7,-8,10,10a-dodecahydrophenanthrene is heated with a 2.5 per cent potassium hydroxide solution to give dl-D 5,16-3-ethylenedioxy-11,20-diketo pregnadiene.  The product is useful in the preparation of cortisone.  It can be reduced using a Raney nickel catalyst to dl-D 5-3-ethylenedioxy - pregnene - 11,20 - dione which can be converted to cortisone by known methods.  Specification 763,208 also is referred to.
Patent GB-862014-A (GB)
Title: Improvements in and relating to threshing machines or combine harvesters
Inventor: BELKOWSKI JERZY
IPC: A01F12/28
Filed: 1956-08-11
Abstract: 862,014. Threshing machines. MASSEY FERGUSON (UNITED KINGDOM) Ltd. July 29, 1957 [Aug. 11, 1956], No. 24645/56. Class 6(3). A concave 12 for a harvester is adjustable about a pivot 20 by the rotation of eccentrics 23 engaged within ring-like members in the front portions 22 of the side bars 18 of the concave and rigidly attached to a tube 24 carried by a shaft 25 on the harvester. Release of a nut 35 allows the shaft 25 to be turned and thereby the gap between the concave and the harvester cylinder 10 to be varied. The pivot 20 is constituted by the ends of a shaft 46 passing through a tube joining the rear portions of the side bars 18, Fig. 3 (not shown), and held in the harvester frame, to which frame guide plates 48, each having a slot 50, are rigidly attached. Similar slots, somewhat larger, are formed in the frame. Further slots 57 are formed in plates 56 on either end of a shaft 55 in order that, on release of a nut 59 securing the shaft 46, the shaft 55 may be manually rotated in a clockwise direction and thereby allow the concave 12 to drop within the limits of the slots 50, 57. In this way a blockage in the concave may be cleared.
Patent GB-950902-A (GB)
Title: Improvements in circular saws
Inventor: HOWARD JOSEPH JOHN
IPC: B23D61/02
Filed: 1961-07-07
Abstract: 950,902. Sawing. H. WIGGIN & CO. Ltd. July 9, 1962 [July 7, 1961], No. 24679/61. Heading B5L. A circular metal cutting saw comprises circumferential main teeth 2 and on each side of the saw at least one set of auxiliary teeth 5 arranged one behind the other and adapted to cut a step in the metal in the side of the main cut. The saw may comprise a number of segments 1 which are secured to a centre by rivets engaging holes 3 and notches 4. At least one, but not more than six of the segments when the saw has 36 segments, are provided with the auxiliary teeth which are formed of inserts of hardened metal. The front edges of the teeth make an angle of 10 to 20 degrees to the radius and the width of the teeth increases progressively on the segments from a minimum for the leading tooth to a maximum for the trailing tooth. The auxiliary teeth cut steps in the metal in the side of the main cut to prevent any closing up of the slot gripping the saw.
Patent GB-372655-A (GB)
Title: An improved gas meter valve mechanism
IPC: G01F3/22
Filed: 1931-09-03
Abstract: 372,655. Gas meters. MCROBBIE, W., 14, Orchard Bank, and MILNE'S METERS, Ltd., 22, Milton Street, both in Edinburgh. Sept. 3, 1931, No. 24709. [Class 54.] A single-throw crank shaft 5 rotated by the usual flag-wire and crossed flag-arm mechanism of a gas meter operates the distribution valves 4 by means of a triangular link, plate, or T- shaped lever 16 which is pivoted at its ends to pins 14, 18 on the crank shaft and valves and at a point midway between the pins 18 to a pin 21 on a block 22 sliding on guides 23. The pin 21 is thereby constrained to move along a line passing through the dead-centres of the crank shaft and the valves are reciprocated, their guides 19, 20 permitting a slight lateral movement on their seats. Alternatively the pins 18 may engage in transverse slots in the valves so that the valves may be constrained by guides to move parallel to one another.
Patent GB-396944-A (GB)
Title: Improvements in or relating to ships steering gear
IPC: B63H25/28
Filed: 1932-09-05
Abstract: 396,944. Reciprocating pumps. JORGENSEN, O. E., 39, Church Road, Gosforth, Newcastle-on-Tyne. Sept. 5, 1932, No. 24719. [Class 102 (i).] Hydraulic steering- gears for ships include a pump actuated by the main engine and provided with a byepass valve under the control of an accumulator piston, which is in equilibrium between the discharge pressure on one side and a weight, spring or air pressure on the other side. The pump plunger 27 is driven by an arm 18 off the main engine and has a valve 28 which is controlled by an arm 35 attached to a shaft 36. The delivery passage 31 communicates through a pipe with the b ottom of a plunger 34 which abuts against the arm 35 and it is spring biased downwardly by a spring acting through a lever 37 on the shaft 36.
Patent GB-1503105-A (GB)
Title: Shaft bushes
IPC: F16C33/08
Filed: 1976-06-15
Abstract: 1503105 Bush G J TAYLOR 15 June 1976 [24 June 1975] 24810/76 Heading F2A A bush comprises a first annular plastics part 15 having a flange 21 at one end and threaded at the other end 18, a second annular plastics part 16 which is correspondingly threaded to engage the thread on the first part and has an end flange 23 such that the length of the bush between the faces may be adjusted by relative rotation of the parts and thereby clamp the bush tightly against the housing. The bush, which is preferably of nylon 66, suitably has one flange eccentric to the bore of the bush and a third part 28 may be provided having a sleeve 29 which fits rotatably over said eccentric flange, the outer surface of said sleeve being eccentric to its bore. The third part 28 preferably has an inward flange 30 attached to the sleeve which abuts against the radial face of one part the other face 33 of the flange then forming the clamp. A groove 34 may be provided on flange 21 to engage with an inner circumferential ridge 35 on parts 28 to hold the parts together during assembly. The bush is used to form the shaft of an air or vacuum brake system.
Patent GB-626216-A (GB)
Title: Prefabricated building unit adapted to form the partition wall between a kitchen anda bathroom
IPC: E03C1/01
Filed: 1946-08-20
Abstract: 626,216. Plumbing units for buildings. KONSTANDT, F. GOLDBERGER-. Aug. 20, 1946, No. 24853. Convention date, Aug. 20, 1945. [Class 20(i)] A partition between a kitchen and bathroom comprises a prefabricated body 1 carrying the water supply and waste piping and a block 14 with pillars 15, on which the body 1 rests, and projections 21 between which is inserted the part 22 of a block 16 adapted at 17 and 18 to receive the waste waters, 17 and 18 being connected to the main drain pipe 19. The block 16 is reversible so as to extend on either side of the wall, the connection 18 remaining in the middle so that the waste pipes from either side can be of the same shape. The supply pipes all branch from the middle, and may be directed to either side by swinging them about the unions, 5, 6. A similar reversible arrangement applies to the other fittings, e.g. the front wall of a flushing cistern 9 is exchangeable with its rear wall and its outflow pipe can be swung to either side.
Patent GB-950079-A (GB)
Title: Improvements in or relating to concentrated hydrochloric acid production
IPC: C01B7/01
Filed: 1960-07-18
Abstract: Concentrated hydrochloric acid is produced by splitting hydrochloric acid with a concentration of greater than 13 DEG  B<\>ae into HCl gas and the azeotrope 13 DEG  B<\>ae hydrochloric acid, absorbing part or all of the thus separated HCl gas in dilute hydrochloric acid so as to increase the concentration of such acid, and recovering the concentrated hydrochloric acid so formed. The HCl gas separated may be cooled prior to its absorption in dilute hydrochloric acid. The feed stream of hydrochloric acid may be divided into two portions, one portion being separated into HCl gas and azeotropic hydrochloric acid, and the HCl gas then absorbed in the second portion of the feed stream to form concentrated hydrochloric acid. Part of the HCl gas may be removed from the system, to be used for other purposes, rather than being absorbed, and the 13 DEG  B<\>ae acid produced may be used, for example, in liquid phase hydrochlorination or as the absorbing acid. In the flow diagram a feed stream of 20 DEG  B<\>ae is divided into two portions, one portion passing through a tails tower 4 to become the absorbing acid in absorber 8, and the second portion going to a stripper 2. In this stripper, the 20 DEG  B<\>ae acid <PICT:0950079/C1/1> is heated, e.g. at 200-230 DEG  F., and azeotropic acid separates from HCl gas.  The latter, admixed with water vapour, is cooled in condenser 6 to such an extent that it will not cause vaporization of the absorbing acid.  The cooled HCl gas is then absorbed in absorber 8, by the acid from the tails tower 4, to form concentrated hydrochloric acid of density 22 DEG  B<\>ae, 23 DEG B<\>ae, or higher.  Any HCl gas not absorbed in absorber 8 is passed to tails tower 4 for absorption or removal from the system by means of a vent.  If any HCl gas is removed from the system for other purposes this is achieved between condenser 6 and absorber 8.
Patent GB-250231-A (GB)
Abstract: 250,231. Gearhart, C. M. April 4, 1925, [Convention date]. Ointments or salves.-A cream or paste to be used in massaging the gums by means of the fingers, consists of water, sulphur, alum, a liquid vehicle such as glycerine, a carbohydrate such as starch, and an aromatic oil.
Patent GB-678120-A (GB)
Title: An improved process for the manufacture of phosphorus oxychloride
IPC: C01B25/10
Filed: 1950-10-13
Abstract: Phosphorus oxychloride is manufactured by subjecting phosphoric anhydride or its hydration products, e.g. ortho,- meta,- or pyro-phosphoric acid to a chlorinating reaction in the presence of carbon and, if desired, another reducing agent.  The reaction tempertaure is 500 DEG -700 DEG C if carbon is used alone or 300 DEG -500 DEG C if carbon monoxide is used as additional reducing agent. Carbon tetrachloride or carbon oxychloride may be used as combined chlorinating and reducing agents.  Wood charcoal, size 150-400m , is impregnated with dilute ortho-phosphoric acid, and the product, dried at 200 DEG C and dehydrated at 500 DEG C in an inert gas until the impregnant is substantially meta-phosphoric acid.  The charcoal is fed continuously into a column at 600 DEG C and is p  maintained in constant agitation by a counter-current of chlorinating and, if desired, reducing gas.  Spent charcoal is continuously withdrawn and reimpregnated, while phosphorus oxychloride is separated from the resulting gases by condensation and rectified, and hydrochloric acid is recovered.
Patent GB-661840-A (GB)
Title: Improvements relating to cross bar selector switches for use particularly in telephone installations
IPC: H01H67/26
Filed: 1949-09-29
Abstract: 661,840. Cross-bar selectors. SIEMENS & HALSKE AKT.-GES. Sept. 29, 1949 [Oct. 6, 1948], No. 25088/49. Class 40 (iv). A cross-bar selector comprises sets of tensioned contact springs at the crossing points 51, Fig. 7, which are actuated by the interaction of two sets of levers 52, 53 and 54, 55, one set being displaceable horizontally and the other set being displaceable vertically, the individual levers of each group being displaced one after the other by an equal amount. Cams 61 on a cam-shaft 56 successively displace bars 52 so that comb-like extensions are displaced to lie under the contacts and in the path of projections 55 on bars 54 which are also successively displaced vertically by a cam-shaft 58. The horizontal and vertical cam-shafts may be actuated by separate stepping magnets Fig. 4 (not shown), or by a common stepping magnet, as in Fig. 5, where a step-by-step motor 30/31 drives either shaft 5 or shaft 6 according to the position of a frictioncoupling 38 controlled by an electromagnet 36; in the position shown, shaft 5 is driven through gears 44, 43, 41, 40a and friction coupling 38; in the other position, shaft 6 is driven through gears 42, 39 and friction coupling 38.
Patent GB-317454-A (GB)
Title: Improvements in liquid or plastic compositions comprising derivatives of cellulose and articles derived therefrom
IPC: C08L1/12
Filed: 1929-08-16
Abstract: 317,454. British Celanese, Ltd., (Assignees of Moss, W. H., and White, B. B.). Aug. 16, 1928, [Convention date]. Compositions containing cellulose derivatives. -Plastic compositions for making films, moulded articles, &c. and comprising cellulose acetate or other organic derivative of cellulose and a resin obtained by condensing a toluene sulphonamide and an aldehyde, are plasticized by the addition of one or more of :-triacetin. diphenylol propane, monomethyl xylene sulphonamide and ethyl toluene sulphonamide. The other cellulose derivatives which may be employed comprise cellulose formate, butyrate and propionate, and cellulose ethers such as methyl, ethyl or benzyl cellulose. The toluene sulphonamide resins may be made by heating toluene sulphonamide with an aldehyde such as formaldehyde. A small pro. portion of urea may be present during the condensation. Low, medium and/or high boiling solvents, other resins such as natural resins, phenol-aldehyde, diphenylol-propane-formaldehyde, phenol-furfurol resins, pigments, dyes, &c. may be included in the compositions. Fire-retardants such as organic bromine compounds, particularly brominated tricresyl phosphate may be added. The following materials are also specified in examples :-acetone, alcohol, diacetone alcohol, benzyl alcohol and ethyl acetate. Specifications 317,456 and 317,437 are referred to.
Patent GB-415594-A (GB)
Title: Method of protecting lumber exposed to the atmosphere from damage due to storage
IPC: B27K3/02
Filed: 1933-09-11
Abstract: 415,594. Nozzles. RUNBACK, E. G. P., Holmsund, Sweden. Sept. 11, 1933, No. 25129. Convention date, Sept. 12, 1932. [Class 69 (iii).] A nozzle from which water issues as a horizontal screen comprises a hollow sleeve 6 threaded to screw into a conduit 5 and provided with a spreading disc 11 having a convex lower face which is screwed on the end of a spindle 9, the lower end of which is rigidly connected by a member 10 to the sleeve 6. The quantity and spread of water is regulated by adjusting the disc 11 and fixing it by a locking nut 12.
Patent GB-804262-A (GB)
Title: Improvements in and relating to flexible diaphragms
Inventor: RICHARDS STANLEY THOMAS ALBERT
IPC: F16J3/02
Filed: 1955-09-01
Abstract: 804,262. Moulding reinforced piston packings &c. NORMALAIR Ltd. Aug. 31, 1956 [Sept. 1, 1955], No. 25159/55. Class 87(2). [Also in Groups VIII and XXVI] A flexible diaphragm for connection between two relatively movable elements, e.g. a piston working within a cylinder, is made of silicone rubber or other rubber-like materials integrated with a textile or metal material formed with interlacing loops and capable of stretch in all directions. The material may be a knitted or stockinette fabric having non-run or non- laddering characteristics or one capable of stretch less in the longitudinal direction than in the lateral ; the material may also have longitudinal reinforcing strands. In the arrangement shown in Fig. 1, a length 1 of material with its margins 4, 5 turned inwards and outwards respectively, is arranged over a frusto-conical inner mould ; discs 7, 8 are secured to the two margins, and previouslyapplied rubber paste on the material is then compressed on to the material by the application of an outer mould member. The rubber is then pre-cured at 130‹C. for 2-5 minutes in the mould and for 2 hours at 150‹C. after removal. Longitudinal reinforcing threads or strands of nylon, glass, or other fibres, may be stretched over the conical portion of the diaphragm; these threads may be crimped. Metal reinforcing rings, may be secured over the margins 4 and 5 the disc 7 being omitted. In a further alternative form, a seamless tube of stockinette is positioned around a male mould and longitudinal tension applied during moulding. A still further form consists of a tube of stockinette which is rolled back at one or both ends, if desired over a ring made of yarn, to form beads. In the arrangement shown in Fig. 5 a stockinette tube 12 is pulled over an expandable tube 13 and inserted in a tubular mould 14 into which the rubber like compound is introduced through a duct 18. End members 15 are applied to close the tube and steam or air under pressure is admitted through a duct 17 to expand the tube diametrically and superheated steam is then admitted to pre-cure the rubber. After removal from the mould the temperature is raised to 150‹C. for 2 hours. A diaphragm formed with a U-bend 10, Fig. 3, may also be formed between two mould members 2 and 9.
Patent GB-313815-A (GB)
Title: An improved composite jointed lever mechanism more particularly for the propulsion of rowing boats
IPC: B63H16/10
Filed: 1928-09-03
Abstract: 313,815. Halbow, G. Sept. 3, 1928. Oars and rowing-apparatus; propelling by reciprocating plates.-For propelling boats the oars or paddles are carried from a T-piece which is pivotally secured to a pair of levers at the top end, said levers at the foot being pivotally and adjustably secured to the boat. An actuating rod is coupled to the levers at their upper end. The apparatus is used in pairs, one on either side of the boat and more than one pair may be employed. Angle bars 1, secured to the edge of the boat carry adjustable pivoted levers 2, 3, which at their upper ends are secured to a T-piece 4 from the centre of which depends a lever 5 carrying the pivotal paddle blade 7. To the T-piece is secured an actuating handle 10 and where the paddles are used in multiple, links 11 are used for connecting adjacent T-pieces. The lengths of the levers 2, 3, may be made adjustable. Also the handle 10 may be secured in different positions upon the upper part of the mechanism.