baber/WOPTO huggingface dataset:
Patent GB-458167-A (GB)
Title: Improvements in or relating to pneumatic tyres
IPC: B60C5/04
Filed: 1935-03-05
Abstract: 458,167. Pneumatic tyres. LACOMBLEZ, A., 23, Rue Breydel, Brussels. March 5, 1935, No. 6895. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 6, 1935]. [Class 144 (ii)] The air-tube 2 is moulded or otherwise provided with a thickened tread portion 3 adapted to close around a puncturing instrument 4, and formed of the same material as the tube without other reinforcement.
Patent GB-140069-A (GB)
Title: A process for increasing the resistance of aluminium to acid and alkaline liquids
IPC: C23C30/00
Filed: 1920-03-06
Abstract: 140,069. Metallindustrie Schiele & Bruchsaler. March 8, 1919, [Convention date]. Coating.-Aluminium, aluminium alloys, or articles coated or lined with aluminium are rendered acid and alkali resisting by being coated with a layer of calcium carbonate. The aluminium surface to be treated is roughened and then powdered with finely ground chalk &c., and heated to about 550‹ C., the coating being bound to the metal by hammering, rolling, or pressing at this temperature. After cooling, the super. fluous top layer of calcium carbonate is removed by treating with a weak solution of tartaric or lactic acid.
Patent GB-571914-A (GB)
Title: Trench digging machine
IPC: E02F3/24
Filed: 1942-05-21
Abstract: 571,914. Trench diggers. HOWARD, A. C., and ROTARY HOES, Ltd. May 21, 1942, No: 6928. [Class 6 (i)] A trench digging machine is pivoted to the rear of a tractor by means of a tubular cross-member 1, side-arms 2, and a cross-bar 9. The tubular member encloses a shaft 29 driven from the tractor shaft through bevel gearing and a shaft enclosed in the casing 11, this shaft being in two parts connected by a dog-clutch. Encased sprocket and chain gearing 32, 33, 34, transmits the drive from shaft 29 to a shaft 35, Fig. 5, and by further casing-enclosed spur gearing to the shaft of the digging, wheel 7 peripherally fitted with. L-shaped digging members 44. The sods are stripped by slotted members 46 and diverted to the side by mould boards 45. Loose soil in the trench is accumulated against the diggers by a depending scoop 47 mounted on the frame by parallel, links 49. Skids 50 connected at their forward ends by links 52 to the frame are associated with screw and nut gearing at their rear ends for varying the height of the wheel.
Patent GB-143346-A (GB)
Title: Improvements in carburettors
IPC: F02M17/24
Filed: 1919-03-20
Abstract: 143,346. Snow, C. S. H. March 20, 1919. Carburetting.-In a carburettor for internalcombustion engines, a wick e is mounted between concentric walls c, d in an annular float chamber a, the fuel having access to the wick through holes j. Air is admitted through permanently open holes f to an annular passage g, and passes through holes h and the wick to holes i leading to the induction pipe of the engine. Air is also admitted through ports k, under the control of a suctionactuated piston n, spring p, hand-controlled lever q, and dash-pot o, and extra air may also be admitted through a pipe r.
Patent GB-1253266-A (GB)
Title: Try-square
IPC: G01B3/56
Filed: 1969-02-10
Abstract: 1,253,266. Try squares, measuring tapes. QUENOT & CIE S.A.R. L. Feb. 10, 1969 [April 22, 1968], No. 7024/69. Headings G1M and G1X, A try square comprises a blade 2 and a stock 1, the stock having a first slot for reception of the blade 2 wherein it is held by screws or pins 4, and a second slot 6 in which is positioned a graduated blade 7 in the same plane as the blade 2. The blade 7 is held in place by extensions 8, 10 which fit in corresponding recesses 9 in the blade 2 and 11 in a closure element 12. A linear measuring instrument with a tape 13 is housed in the stock 1. Alternatively, the blade 7 may be held in place by force -fitting, glueing, riveting or  welding on the stock may be coated with a synthetic material which passes through openings in the blade. The blade 2 may also be graduated if desired.
Patent GB-557392-A (GB)
Title: Improvements in or relating to agricultural implements
IPC: A01B35/02
Filed: 1942-05-22
Abstract: 557,392. Hoes. HARPLEY, C. H. May 22,1942, No. 7040. [Class 6 (i)] Hoes 6 are mounted on a framework 4 extending rearwardly from a supporting wheel or wheels 1. Lateral and longitudinal adjustment is permitted and the blades 6, 7 may extend inwardly or outwardly from their shafts 8, 9. The inclination of the handles may be varied by providing slotted links 16.
Patent GB-515677-A (GB)
Title: A process of producing light-sensitive grainless silver halidecolloid systems
IPC: G03C1/015
Filed: 1938-03-07
Abstract: 515,677. Photographic silver halide emulsions. CZEIJA. O., and LIERG, F. March 7, 1938, No: 7047. [Class 98 (ii)] A silver halide emulsion is prepared in such a manner as to have a predetermined residual charge in order -that the sensitivity, gradation, and freedom from development-fog may be controlled, by producing the silver halide in the presence of an excess, of silver nitrate. A cellulose acetate film is saponified in an aqueousalcoholic potassium hydroxide bath, washed, dipped into aqueous potassium bromide solution and dried. The potassium bromide may be homogenized in a steam chamber. The film is then immersed in an ammoniacal aqueousmethyl alcoholic silver nitrate bath and washed. The cellulose acetate may be applied to a support before hydrolysing, or the finished layer may be applied to glass or metal supports and calendered thereon. Regenerated cellulose may be similarly treated. The potassium bromide may be replaced by cadmium bromide or dibromotrimethylamine, and iodides or alkaline earth salts may be added to the bromide bath.
Patent GB-648549-A (GB)
Title: Air-volume control device for a water supply system
IPC: G05D9/04
Filed: 1948-03-08
Abstract: 648,549. Water supply systems. BRADY, F. E March 8, 1948, No. 7123. [Class 68 (i)] [Also in Group XXIX] In a water supply system a pump 13 feeds a supply pipe 19 and is also connected to a storage tank 10 through an air-volume control device which regulates the volume of air within the tank, this air maintaining the water in the tank under pressure. The control device comprises a housing having a chamber, formed within the cross-head 23, connected to the pump and to the supply pipe, whilst a venturi, formed in two sections 25, 26, leads from the chamber to the inlet 16 of the tank. Also from the chamber a second venturi 29 enters the throat 28 of the first venturi, this second venturi at its throat 29 being connected to an annular chamber 35 by passages 32-34. This chamber 35 is connected to atmosphere past valve 38 and to the air space in the tank by passages 40, 20 past valve 21. On operating the pump, water flows to the supply pipe and through both venturisand, because the second venturi leads into the throat of the first venturi, the pressure at the throat of the second venturi will be so low that air will be drawn into the venturi and will enter the tank with the water being pumped thereinto. When the water in the tank is below the level of the valve 21, air will be drawn down the pipe 20, but when the water reaches the level of the valve 21, that valve closes and air is drawn in past the valve 38. To provide for sudden variations in the pressure in the inlet chamber, a by-pass is provided to the first venturis 25, 26, this bypass being controlled by a differential valve asembly which permits water to flow from the tank more easily than to enter it. This valve comprises two discs 41, 42 maintained in faceto-face contact by springs 46, 44. When in faceto-face contact, the discs abut against separate opposed shoulders 43, 47 formed in the housing 15. Slots 48 formed in one disc 41 are out of alignment with the slots 45 formed in the other disc 42 so that the contacting face of each disc is subject to the pressure acting on the remote face of the disc opposing it. The by-pass, differential valve and two-part venturi may be dispensed with. The critical level of water within the tank may be varied by fitting an adjustable inlet to the valve 21.
Patent GB-719486-A (GB)
Title: Improvements in or relating to brake or clutch mechanism of the internal shoe-drum type
IPC: F16D13/18
Filed: 1952-04-20
Abstract: 719,486. Friction clutches. CATT, F. A. July 20, 1953 [April 20, 1952], No. 7247/52. Class 80 (2) [Also in Group XXXIV] In a friction coupling, applicable to clutch mechanisms, of the'type wherein shoes 11 are caused to simultaneously engage a drum by radial movement caused by rotation of a cam 23, coaxial with the drum, having lobes 25 which engage rollers 20 on the shoes, the cam 23 may itself move radially to compensate for distortion or ovality of the drum. This radial movement may be arranged by the insertion of a spring ring 24 of polygonal or sinuous shape between the bore of the cam 23 and the axle 7. In another form of the clutch, Fig. 4, the central cam has teeth 28 on its lobes which coact with teeth 29 on the shoes through pinions 32.
Patent GB-910617-A (GB)
Title: Improvements in or relating to hinges
Inventor: JERVIS THOMAS WILLIAM VERNON
IPC: E05D3/12
Filed: 1960-03-01
Abstract: 910,617. Hinges. MICKLEOVER TRANSPORT Ltd. Dec. 16, 1960 [March 1, 1960], No. 7275/60. Class 65 (2). A transport container, e.g. a van, having a rearwardly facing opening flanked by the rear edges of the side walls has one or more doors 21 each connected to one or other of the walls by a number of hinges each comprising a first element or plate 10 secured within a rearwardly facing recess 28 in the rear edge of the wall, a second element or boss 17 secured to the door in a recess 9 which faces rearwardly when the door is closed, and connecting means 24, 25 pivotally connected to the elements and lying within the recesses when the door is closed. The plate 10 is bent at one end to form a boss 15, and the boss 17 is welded to two attachment arms 19, 22, the connecting means 24, 25 comprising a pair of thick strips which are interconnected by an integral strut 26. The strips of all the hinges of each door are welded to a bar 31 to move in unison. Each door can open through 90 degrees about the hinge axis 27 until the arm 22 abuts the bar 31, and the strips 24, 25 can turn through 180 degrees about the hinge axis 16 until they abut the corner of the container which is provided with a wear-resistant surface 34, the door then resting against the side 33 of the container. Specification 849,982 is referred to.
Patent GB-549930-A (GB)
Title: Improvements relating to the manufacture and use of hydrocarbons derived from styrene and its homologues
IPC: C08K5/01
Filed: 1941-06-09
Abstract: 549,930. Styrene derivatives ; resins. QUIN, D. C., and BOAKE, ROBERTS, & CO., Ltd., A. June 9, 1941, No. 7297. [Class 2 (iii)] A plasticizer for polystyrene resins or resinous compositions composed thereof is obtained by hydrogenating liquid distyrene or a like mixture of saturated and unsaturated hydrocarbons boiling over 250‹C. and having a molecular weight of 180-500 which is prepared by limited polymerization of styrene or a homologue thereof, or by condensation of styrene or a homologue thereof with an aromatic hydrocarbon. The hydrogenation is preferably effected by means of hydrogen in the presence of hydrogenation catalysts with or without promotors such as copper, aluminium, magnesium or chromium, but treatment with zinc and hydrochloric acid may also be used. By using a carbonate, formate, oxide or hydroxide of a metal operative as a catalyst, the latter may be produced in situ during the hydrogenation. In an example, styrene is reacted with ethylbenzene in the presence of sulphuric acid and the product, after distillation, subjected to hydrogenation in the presence of nickel powder. The use of xylene for condensation with styrene is mentioned.
Patent GB-670712-A (GB)
Title: Improvements in devices for lap feeding in carding engines
IPC: D01G15/36
Filed: 1949-03-17
Abstract: 670,712. Carding engines. ZBROJOVKA BRNO, NARODNI PODNIK. March 17, 1949 [March 19, 1948], No. 7302/49. Class 120(i) The reciprocating traversing mechanism for the rollers of a lap feeding device comprises a gear case 4 to which the lap laying member is connected, the gear case sliding on a rotating driving shaft 1, the surface of which is protected by flexible bellows pieces 22, 23. The shaft 1 has a gear 5 keyed slidably to it and capable of being slid into engagement with. either of gears 7, 8 to rotate in either direction a gear 9 connected to a pinion 11. The pinion 11 engages a rack 12 to reciprocate the case 4. A lever 14 abuts stops 18, 19 at each end of the traverse to operate a crank causing the sliding of the gear 5 from engagement with one gear 7 or 8 into engagement with the other. The height of the rack 12 may be adjusted to enable different sizes of pinion 11 to be used.
Patent GB-790394-A (GB)
Title: Improvements in or relating to packings for biscuits or the like
IPC: B65D5/38
Filed: 1956-03-08
Abstract: 790,394. Packages. SCHWEIZERISCHE INDUSTRIE-GES. March 8, 1956 [Jan. 20, 1956], No. 7306/56. Class 94(1). A package for biscuits &c. consists of a container 1 having a cover 4 both folded from blanks and having no connections to maintain them erect, the whole being held together by a totally enclosing envelope 5. The members 1, 4 may be corrugated over all or part of their surfaces and the envelope may have a tear strip 6 and consist of more than one layer. The member 4 may have a top and side walls only.
Patent GB-609309-A (GB)
Title: Improvements in and relating to systems of and apparatus for detecting and regulating combustion conditions in an internal combustion engine
IPC: F02D35/02
Filed: 1945-03-22
Abstract: 609,309. Automatic control systems for internal-combustion engines. SPERRY GYROSCOPE CO., Inc. March 22, 1945, No. 7314. Convention date, March 22, 1944. [Class 38 (iv)] [Also in Groups XXVII, XXXVIII and XL (c)]  In a system for controlling and indicating the presence of detonation in an internal - combustion engine, signals representative of combustion conditions are obtained from a pick-up on the engine and amplified to a common level. Signals representative of detonation being separated on an amplitude basis and used to actuate indicating and mixture controlling means. Figs. 1 and 2 show an arrangement in which signals from a pick-up 30 are applied to amplifier A, the output of which is fed to an A.G.C. circuit 65, Fig. 2, which enables a constant mean output to be obtained from A, diode 62 being provided to reduce the inverse voltage and hence the leakage across diode 57, by shorting the amplifier output when 57 is not conductive. Detonation signals are separated from combustion signals on an amplitude basis by means of a limiter, comprising discharge tube 63 in series with resistor 61, which also serves to maintain the mean amplitude of the A.G.C. voltage constant. Impulses corresponding to detonation appearing across resistor 61 are applied to a prolonging amplifier which holds relay 73 for several seconds on receiving an impulse. If the "manual/automatic switch 90, 93 is set to automatic, closure of relay 73 operates two-way relay 97 which in turn operates motor 42, so that mixture is rapidly enriched by means of gears 44, 45, Fig. 1, and mixture control 14, until limit switch 100, Fig. 2, is operated. When relay 73 opens, relay 97 is no longer energized so that its contacts move back connecting the motor to the supply in such a manner that it slowly weakens the mixture, until detonation occurs again, or until limit switch 99 is operated. Manual mixture control is effected by means of lever 16, also the control may be motor driven to either of the limiting positions by means of switches 91 and 92 provided switch 90 is set to " manual." Detonation signals are applied through a suitable detecting and smoothing network to a meter 87 and a recorder 88, to give a reading of the amount of detonation occurring. Visual indication of detonation is given by discharge tube 89, which is associated with detonation counter 105. Setting switch 93 to " automatic " energizes electromagnetic clutch 46, which couples motor 42 to shaft 23.
Patent GB-159764-A (GB)
Title: Improvements in or relating to the generation, transmission or distribution of electricity
IPC: H02H3/28
Filed: 1920-03-11
Abstract: 159,764. Hawkins, H., Hanstock, W. H., Higgs, A. H., and Ferranti, Ltd. March 11, 1920. Addition to 155,095. Cut-out arrangements.-A protective arrangement comprises transformers b situated at each end of a feeder a, the secondary windings of the transformers being connected to common points. Pilot wires d are connected to the common points and normally no current flows in these wires. When a fault occurs, relays e in the pilot wires are energized to close the circuits of the tripping- coils g of switches h. Overload relays c are connected in each phase of the transformer secondary.
Patent GB-143824-A (GB)
Title: Improvements in pushers for use in connexion with billet heating furnaces and the like
IPC: B21J13/08
Filed: 1920-03-12
Abstract: 143,824. Lee, R. H., and Onions, Z. W. March 12, 1920. Charging.-A ram for pushing billets into a furnace and along the furnace bed is operated directly by a small electric motor or steam turbine or engine. Fig. 2 shows, in plan, an apparatus consisting of a baseplate a fitted at its four corners with guides or brackets b for a pair of rods c which carry the pusher head d. Between the guides is a similar pair of guides or brackets g, h supporting a screw k fitted between thrust bearings l, m and working in a nut n in a cross-head p connecting the rods c, The screw is rotated by a motor r, couplings s, and reduction gearing t, and is controlled at the end of each stroke by limit switches u operated by a trip-lever v on the cross-head p. A sheet-metal guard is fitted over the screw k.
Patent GB-979256-A (GB)
Title: Improvements in and relating to bags and sacks
Inventor: MILNER RICHARD HENRY
IPC: B65D30/24
Filed: 1962-02-26
Abstract: 979,256. Valve bags. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Feb. 26, 1962, No. 7426/62. Heading B8K. An exterior filling sleeve with exterior ribbing or embossing is attached at one end around the aperture of a bag so that it can be pushed into the bag, when it has been filled, to form a valve. The bag may be formed from thermoplastic sheet or tubing with its free edges sealed together, except at the opening, where the filling sleeve, of similar material, is welded in place. Alternatively the bag may be formed from kraft paper, textile sheet, or a laminate of paper and thermoplastic material. The end of the sleeve adjacent the bag may be sealed either on the outside or the inside of the filling aperture. The sleeve may diverge slightly outwardly or inwardly. The sleeve may be connected to the bag by adhesive or may be blow moulded in one piece with the bag. The open end of the filling sleeve may be temporarily sealed when the bag has been filled.
Patent GB-126437-A (GB)
Title: Improvements in or ralating to Frame-members for Aeroplanes.
Inventor: GRAY CHRISTIAN HAMILTON
IPC: B64C3/18
Filed: 1918-05-03
Abstract: 126,437. Gray, C. H. May 3, 1918. Framework.-A frame member of streamline or similar section and of inflexible material for use on aircraft, is pivoted at its ends so that it always keeps parallel to the line of draught, or a fairing of inflexible material may be pivoted about the frame member for the same purpose. Fig. 4 shows a streamline fairing pivotally secured to a tubular strut by loops L. The device may be of metal or ebonite, &c.
Patent GB-867427-A (GB)
Title: Improvements in or relating to toys and model figures and apparatus for use therewith
Inventor: STANDING JAMES MURDOCH
IPC: A63H3/52
Filed: 1958-03-07
Abstract: 867,427. Lay figures. HILL & CO. (METAL TOYS) Ltd., JOHN. March 12, 1959 [March 7, 1958], No. 7429/58. Class 52(5). [Also in Group XV] A modelling set comprise plastic material such as modelling wax or clay and a model figure having a body portion dispropor tionately thin in relation to it other features and substantially circular in cross section, whereby the figure will be reasonably pro portioned when clothed with garments made from the plastic material. As shown, a figure ha a cylindrical body 10 intended to be "clothed" with garments mad from modelling wax worked into thin sheets. Garment patterns to which the wax is cut are provided, the wax cut-outs then being made into garments for placing on the model. Because of the reduced body of the model, the provision of garments which are thick in proportion to the model is of no consequence and the "clothed" model will be proportionate. The figure may be moulded from a synthetic resin, e.g. polythene, polyvinyl acetate or polystyrene. The head may comprise a skull on which the face is built up in clay or modelling wax.
Patent GB-709111-A (GB)
Title: Process for improving whites of photographic prints
IPC: G03C5/26
Filed: 1951-03-30
Abstract: 7 - Diethanolamino - 4 - methylcoumerin is prepared by refluxing together 3-diethanolaminophenol, ethyl acetoacetate, zinc chloride, and ethanol.  3-Diethanolaminophenol is prepared by reacting 3-aminophenol with ethylene oxide.
Patent GB-1486516-A (GB)
Title: Methods of and means for attaching studs to metallic surfaces
IPC: B23K9/20
Filed: 1976-02-19
Abstract: 1486516 Anchoring studs GRUNDY & PARTNERS Ltd 19 Feb 1976 [21 Feb 1975] 7464/75 Heading F2H [Also in Division B3] In a method of arc stud soldering an article, e.g. a stud 11, to a surface, particularly a vertical surface, of a structure, e.g. a railway rail 12, wherein the article comprises an elastically conductive main body 13, e.g. of brass and having screw threads, and a solder head 14, a ring 16, e.g. of Cu or Cu alloy, is spaced about the head and, around a majority of its surface 18, from the structure surface to provide gaps into which molten solder is drawn by capillary action to join the stud to the surface by way of the ring. The spacing of the ring is achieved by four projections 19 and the positioning of the ring about the head by a ceramic ferrule 15, attached to a soldering gun 10, whose teeth engage a surface 17 of the ring. A chamfer 22 on the ring provides a seat for a solder fillet between the stud and the ring (Fig. 5, not shown). The soldering gun 10 used may be that of Specification 1,480,101.
Patent GB-1024160-A (GB)
Title: Mold treating apparatus
IPC: B22C15/14
Filed: 1965-02-22
Abstract: 1,024,160. Moulding-machines. H. H. HARRIS. Feb. 22, 1965, No. 7496/65. Heading B3F. Moulding apparatus comprises a number of spaced tamping elements 30 each supported for substantially independent free universal movement, a mould support member below the tamping elements, and means for vertically relatively reciprocating the support member and the tamping elements.
Patent GB-291176-A (GB)
Title: Improvements in furnace grates
IPC: F23H13/00
Filed: 1927-03-18
Abstract: 291,176. Gibson, W., and Pocock, E. J. March 18, 1927. Grates.-Inclined gratings formed of separate bars A, Figs. 1 and 2; or of slotted castings, Figs. 3 and 4, are arranged at the sides of the ordinary bars of a furnace grate adjacent to the walls. Top and bottom bearers D, C and B, B<1>, supported by the brickwork E, carry the gratings. Reference has been directed by the Comptroller to Specifications 20498/03, 25761/05, 5737/07, and 23888/13.