baber/WOPTO huggingface dataset:
Patent GB-491275-A (GB)
Title: Tube bending tool
IPC: B21D7/024
Filed: 1938-01-25
Abstract: 491,275. Angular bending. ALLAM, D. Jan. 25, 1938, No. 26090/37. [Class 83 (iv)] In a portable apparatus for bending tubes &c. the tube E is secured to the former by a clip F engaging grooves in the former and held by a removable pin G. The former is rotated by a forked lever I pivoted on a pin B and secured to the former by a removable pin H engaged in selected holes A in the former.
Patent GB-186354-A (GB)
Title: Automatic electricity meter
IPC: G07F15/00
Filed: 1921-10-03
Abstract: 186,354. Heesch, O. V. Aug. 27, 1921, [Convention date]. Electricity, supplying by meter.-On prepayment, a cylinder 18 having a contact piece 19 to make contact with a spring 20 is turned against a spring 21 to close the circuit bv an arm 16 on a revoluble shaft 15 engaging an eccentric pin 17 on the cylinder, which is then held by one end of a lever 22 engaging, under the action of a spring 27, a notch 23 in a flange 24 thereon. At the same time a, screwed spindle 13 passing through a nut 9 is rotated and moves axially away from the other end 25 of the lever 22. The working of the meter revolves the nut 10 and returns the spindle 13 to disengage the lever 22 from the cylinder 18 which is then revolved to open the circuit by its spring 21. The spindle 13 has a squared end passing through a combined ratchet and coincarrier wheel 4. Coin action, mechanical-connection; pricechanging mechanism.-A coin inserted through a slot 2 in an outer disc 1, which may be adjusted in the usual manner according to the price of electricity, couples a disc 3, which can be rotated by a handle 7, to the wheel 4. The coin in its passage engages the slanting end of an arm 14 on the shaft 15 to rotate the shaft and close the circuit.
Patent GB-206489-A (GB)
Title: Improvements in the isolation of urea
IPC: C07C273/16
Filed: 1923-10-19
Abstract: The process described in the parent Specification, for the isolation of urea from acid solutions thereof by concentration under reduced pressure until upon cooling only crystals of urea are deposited, is modified by effecting the concentration at temperatures between 60 DEG  and 75 DEG  C., whereby a solution of higher urea content is obtained without substantial decomposition of the urea to ammonium salts.  The vacuum employed is as high as possible.  As in the parent Specification, the concentration in vacuo may be preceded by a cooling, to about -10 DEG  to -15 DEG  C., to separate in the case of sulphuric acid solutions of urea, a eutectic mixture of ice and sulphuric acid monohydrate.  This latter operation is preferably applied only to solutions containing less than 34 per cent of urea. The mother-liquors remaining after the separation of urea crystals may be employed for the hydration of further quantities of cyanamide.
Patent GB-385362-A (GB)
Title: Improvements in electrical contact devices particularly for thermionic valve holders
IPC: H01R33/76
Filed: 1931-09-18
Abstract: 385,362. Thermionic valves and valveholders. ROBINSON, W. W., 1220, South La Salle Street, Beloit, Wisconsin, U.S.A. Sept. 18, 1931, No. 26165. [Class 39 (i).] A contact consists of a metal sheet bent to U- shape, of which one arm 15 is provided with projecting limbs 11 on each side terminating in flared contact surfaces 13, and the other arm 18 is arranged between, and adapted to support the limbs. Projections 19 on the arm 18 act as supports for the limbs. A U-shaped spring 30 presses the free ends of the limbs towards each other. A part 17 is secured to an insulating plate 16 by a rivet 22, and rotation is prevented by a lug 24. An insulating plate 35 with a central aperture 36 serves to guide the valve pins into apertures 20a in the plate 16. Flared extensions 14 on the lower parts of the limbs facilitate removal of the pin. The pins may be of different diameters.
Patent GB-1480456-A (GB)
Title: Method of stabilizing oxymethylene copolymers
IPC: C08G2/30
Filed: 1975-06-19
Abstract: 1480456 Oxymethylene polymer stabilization UBE INDUSTRIES Ltd 19 June 1975 [21 June 1974] 26185/75 Heading C3P Oxymethylene copolymers are stabilized by heating the copolymer at 100‹ to 170‹ C., in the presence of a sodium or potassium salt of ethylenediamine tetraacetic acid, at a pH of 4 to 7, and in a medium consisting of (A) 50 to 92% of a hydrocarbon of 5 to 7 carbon atoms, (B) 6 to 48% of an alcohol and (C) 2 to 20% of water. The copolymer to be stabilized may be the direct product of copolymerization in a suitable hydrocarbon. Examples refer to the stabilization of copolymers of oxymethylene units and 1,3,6- trioxocane or 1,3-dioxolan derived units, wherein the media employed are mixtures of (A) toluene, cyclohexane or n-heptane, (B) methyl or ethyl alcohol and (C) water.
Patent GB-1011606-A (GB)
Title: Improvements in guiding means for perforated stationery
IPC: B41J11/28
Filed: 1963-07-02
Abstract: 1,011,606. Typewriters &c. UARCO Inc. July 2, 1963 [July 2, 1962], No. 26207/63. Heading B6F. Pin-wheel feeds; side lays.-A pin-wheel 21 for feeding marginally perforated continuous stationery 11 has associated therewith a moving element, i.e. an endless tape 27, Fig. 4, which is perforated for engagement by the pins 22 and passes between the stationery margin and the wheel, and prevents the pins from pulling the stationery out of its path of travel as the pins are being withdrawn from the perforations. The tape 27 passes around the pin-wheel 21 and over an idler roller 30. To prevent the stationery rising off the pins 22, a second moving element or a spring strip 32 slotted to prevent its contacting the tips of the pins 22 and fixed at one end 35a, may be provided. Where the stationery first engages the pin-wheel, a disc 37, carried on a spring-urged arm 38 and rotated frictionally by the pinwheel is provided for guiding the stationery on to the pins 22, the disc comprising a part 37a, Fig. 3, of largest diameter engaging the wheel adjacent to the edge of the stationery, parts   37c, 37c<SP>1</SP> of smaller diameter spaced from the wheel 21 at each side of the pins to accommodate the stationery, and a still smaller diameter part 37b to provide space for the pins. The pinwheel unit is slidably mounted on an hexagonal driven shaft 15a and one such unit is mounted adjacent to each margin. The casing of each unit has a part 52 encircling a fixed rod 13 to which it is secured in adjusted position by a screw 53. Edge trimming.-Each pin-wheel device is associated with cutting discs 25, 25a, Fig. 5, for trimming off the perforated edges of the stationery, if desired. The discs are fixed to blocks 40, 40a keyed for axial sliding movement, to bushes 41, 41a (the latter integral with the pin-wheel) hexagonal internally to fit hexagonal driven shafts 15, 15a respectively. The block 40 is adjusted axially by a member 48 engaging a groove 49 thereon and carried by a threaded spindle 46. The block 40a is caused to follow the block 40 during leftward movement of the latter by the overlap of the discs 25, 25a, and by springs 44 in the block 40a pressing against the pin-wheel 21 during rightward movement. The latter movement of the block 40a is limited by a stop 66, and further rightward movement of the block 40 carries the knife disc 25 away from the disc 25a. In this position of the discs, the stationery is fed without being trimmed. Fixed guides.-Each unit has a cover 54a, Fig. 4, with a downwardly-extending part 56, Fig. 2 (not shown), which shields the cutting discs from contact with the operator and also co-operates with a guide 58 to form a paperinfeed channel.
Patent GB-950675-A (GB)
Title: An electro-acoustic transducer
IPC: H04R7/12
Filed: 1961-07-19
Abstract: 950,675. Transducers. SIEMENS & HALSKE A.G. July 19, 1961 [July 22, 1960], No. 26230/61. Heading H4J. An electro-acoustic transducer having a diaphragm is provided with a resonator in the form of an acoustic pipe disposed in front of the diaphragm, the pipe having an arcuate axis lying in a plane parallel to the diaphragm. As shown, the invention is applied to a moving- coil transducer having a moving coil 6, operating in a ring-shaped gap 5, mechanically connected to a diaphragm 7. The protective cap 8 has acoustically inactive apertures 9. An absorption resonator 10 is provided behind the diaphragm 7, the partition 11 being thin-walled and having two tubular resonator apertures 12, 13, of negligible acoustic frictional resistance, closed by foils 14, 15 of acoustic damping material. Apertures 16 in the pole plate 4 allow the resonator 10 to be directly coupled to the space behind the diaphragm 7 by the apertures 12, 13, and thus to suppress an undesired resonance point of the transducer. A tube 19 in the freely moving part of the diaphragm 7 couples the space in front of the diaphragm to that behind it, and is so dimensioned as to resonate at the lower frequency end of the frequency range, thus extending the said range. The provision of the two resonant pipes 21, 22 in front of the diaphragm serve to suppress resonant points at the higher frequency end of the range, the lengths of these pipes being chosen so as to be equal to half the wavelengths of the undesired resonant frequencies. In a modification, the pipes are disposed on the front surface of the diaphragm.
Patent GB-949485-A (GB)
Title: Improvements in or relating to methods of making hectographic copies from printing master sheets and copy sheets for use in performing the methods
IPC: B41M5/04
Filed: 1961-07-20
Abstract: A copy sheet for use in printing comprises a satinized or partially sized paper base sheet and a layer of microscopically small gelatine capsules containing an alcohol such as methyl or ethyl alcohol secured thereto by a binder such as a resinous acid, casein, bentonite, or a colloidal material.  The copy sheet is brought into contact with a printing master sheet having a supply of an ethyl alcohol soluble dye, e.g. triphenylonethane, at image areas thereof, and at least some of the capsules are burst and release ethyl alcohol which dissolves part of the dye and causes staining of the sheet at areas thereof corresponding to image areas of the master sheet.
Patent GB-260280-A (GB)
Title: Improvements in and relating to liquid level gauges for boilers
IPC: F22B37/78
Filed: 1926-10-21
Abstract: 260,280. British Thomson-Houston Co., Ltd., (Assignees of Thomson, E.). Oct. 21, 1925, [Convention date]. Gauge glasses.-A boiler gauge glass is provided with means for maintaining a gas at comparatively low temperature in the glass above the liquid. A reservoir of compressed gas may be connected to the upper end of the glass, and a small amount of gas admitted, just sufficient to prevent entrance of steam. The gauge glass may be connected to the boiler by long pipes to restrict mixing of the gas with the steam, and the upper and lower pipes may have upward and downward bends respectively to restrict further the mixing of the gas and steam and the circulation of hot water into the glass. A heatinsulating joint may be incorporated in the lower pipe. In Fig. 1, means are provided for generating a continuous supply of gas electrolytically. The gauge 2 is connected by pipes 3, 4 to the boiler, and by pipes 14, 16 to a cathode vessel 13 which may contain soda solution. An insulated hard carbon anode 12 is connected through a resistance 20 to a source of current 17 and thence to the pipe 14. Oxygen and hydrogen generated pass to the top of the gauge 2, and the water consumed is replaced by water from the boiler. The length of the pipe 14 prevents mixing with the solution. An electrolyte may be selected to generate gas of substantially the density of the steam. In a modification, two insulated electrodes may be used, additional liquid being added periodically.
Patent GB-833075-A (GB)
Title: Method of bonding synthetic high polymers to polyurethane elastomers
IPC: B32B27/00
Filed: 1957-07-25
Abstract: 833,075. Flexible laminates. GENERAL TIRE & RUBBER CO. July 25, 1957 [July 27, 1956], No. 23643/57. Class 140. Tyre cords of nylon or polyethylene terephthalate are bonded under pressure to polyurethanes comprising the reaction products of generally linear long chain polyglycols and poly-, preferably di-isocyanates with the aid of polyhydroxyphenol-aldehyde resins, preferably formed by applying an aqueous solution containing the resin ingredients and a catalyst to the cords and subsequently drying and heating. The resin used is preferably a resorcinol-formaldehyde condensation product, and the polyglycols are preferably those containing ester or ether groups, examples being the reaction product, of molecular weight about 2000, of ethylene and propylene glycols and adipic acid, and polyalkylene ether glycols, such as poly-ethylene-propylene ether glycol, of molecular weight 600 or above.
Patent GB-379874-A (GB)
Title: Improvements in apparatus for the preparatory treatment, such as degumming, of textile fibres
IPC: D06B5/00
Filed: 1931-09-22
Abstract: <PICT:0379874/IV/1> <PICT:0379874/IV/2> Textile fibres such as jute, ramie and flax are subjected to the various steps of degumming or like preparatory treatment in an open and preferably straight condition.  The fibres are placed on trays 25 the top 29 and bottom 27 of which are of wire mesh and uprights 31 of stout wire keep the fibres in position.  The trays are inserted in a frame 1 beneath a series of distributer chests 3 and the frame is placed in a container.  Treating liquid is sprayed from the chests 3 on to the fibres and flows over the top of the next chest.  The liquid collects at the bottom of the container and is recirculated.
Patent GB-206146-A (GB)
Title: Improvements in vaporizers for internal combustion engines
IPC: F02M31/18
Filed: 1923-10-23
Abstract: 206,146. Brevetti Ughemar Soc. Acc. L. Corsi & Co. Oct. 24, 1922, [Convention date]. Vaporizers, external.- Heavy fuel mixture is vaporized by being passed through a chamber 3 which is screwed into the head of the cylinder and has a downwardly projecting annular portion which is heated on all sides. The mixture from the carburettor, entering by a pipe 6, follows the path indicated 'by the arrows round a depending tube 7 and through a suction-actuated inlet valve 9. A recess 4 is open to the cylinder. A separate petrol carburettor delivering mixture at a point between the heating means and the valve 9 may be provided for starting. An existing engine may be simply modified by fixing a chamber 3 in a conical seat formed in the head of the cylinder and passing the vaporized mixture through the usual admission port of the engine.
Patent GB-1261782-A (GB)
Title: Improvements in or relating to hose clips
IPC: F16L33/035
Filed: 1969-05-23
Abstract: 1,261,782. Clips. JURID WERKE G.m.b.H. 23 May, 1969 [29 May, 1968], No. 26537/69. Heading E2B. A hose clip comprises a wire ring with overlapping end portions with interengaging teeth 21, 22 and with notches 11, 12 adjacent the teeth for a tightening tool. According to modifications, the teeth are off set from the plane of the ring, the teeth comprise a helical screw or are truncated conical and are undercut, or a helical screw portion attached to one end of the ring is rotatable about its longitudinal axis by a tool inserted in a socket in the end, to engage with a toothed portion on the other end of the wire. A spring strap may partially enclose the end portions. The ring may be hinged midway along its length or have a central small loop acting as a hinge.
Patent GB-1090507-A (GB)
Title: Herbicidal compositions
IPC: A01N39/04
Filed: 1966-06-15
Abstract: A herbicidal composition comprises 2\sv-methyl-4\sv-chlorophenoxyaceto-3-trifluoromethyl -anilide <FORM:1090507/A5-A6/1> and 4-di-n-propylamino-3,5-dinitro-1-trifluoromethyl-benezene <FORM:1090507/A5-A6/2> in a weight ratio of 4:1 to 1:2, and a carrier.
Patent GB-1118929-A (GB)
Title: Process and constructions for contacting liquids and gases
IPC: B01D3/26
Filed: 1965-06-23
Abstract: 1,118,929. Contacting gases with liquids. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 23 June, 1965 [25 June, 1964], No. 26605/65. Heading B1R. A tray for contacting a gas with a liquid of the kind comprising a liquid inlet section and a liquid outlet section and one or more tubular contacting apparatuses arranged above aperture(s) in the tray and in which a rising gas stream entrains liquid from the tray to form a gas/liquid mixture which is given a rotational movement by vanes disposed within the or each apparatus whereby liquid is separated at the upper end of the or each apparatus has the or each tubular contacting apparatus provided with a discharge passage for liquid therefrom and/or a supply passage for liquid thereto, the passage(s) extending now not more than half the circumference of a tubular contacting apparatus and so arranged that liquid is preferentially discharged towards the liquid outlet section and/or is received from adjacent that section of a tubular contacting apparatus nearest to the liquid inlet section. The passage for the discharge of liquid may comprise one or more slots in the upper part of a tubular contacting apparatus or as shown in Fig. 3 the upper end of a tubular contacting apparatus may be surrounded by a curved baffle 10 liquid collected thereby being discharged from the ends of a trough 11. As shown in Fig. 4 the lower end of a tubular contacting apparatus has inserted therein a funnel-shaped member 13 forming with the tubular contacting apparatus an annular duct for supplying liquid to be entrained by a gas stream and which receives liquid from the tray through openings 7 disposed over not more than half the circumference of the tubular contacting apparatus. In a modification openings for receiving liquid from the tray are disposed at spaced intervals entirely around a tubular contacting apparatus adjacent the tray and a baffle spaced from the tubular contacting apparatus shrouds the openings over at least half of the circumference of the tubular contacting apparatus.
Patent GB-824457-A (GB)
Title: Improvements in method and apparatus for cutting glass sheets
IPC: C03B33/10
Filed: 1957-08-23
Abstract: 824,457. Cutting glass sheets. PITTSBURGH PLATE GLASS CO. Aug. 23, 1957 [Sept. 24, 1956], No. 26678/57. Class 56. In a glass-cutting apparatus, ultrasonic vibrations, preferably of frequency between 20 and 80 Kilocycles per second, are imparted to the cutting wheel 30 in a direction normal to its axis of 'rotation. The wheel, which may be of tungsten carbide, is carried by a conical member 26 brazed to a coupling bar 22 which is brazed to a transducer 14 which may be of the piezoelectric or magnetostrictive types. This assembly is locked by a flange 24, coincident with the node of the vibrations, to a housing 44 which is non-rotatably mounted in a piston 50 which can be depressed against a spring 78 by air pressure admitted at 82 to lower the cutting wheel into contact with the glass 6 with a pressure of between 10 and 30 1bs (preferably 12 to 20). Cooling air for the transducer is supplied through pipe 66 and discharged at 74. The edge of the wheel is V-shaped with an included angle of between about 135 and 168 degrees (preferably 139-166). The thickness of the wheel is between 1/32 and 5/32 inch and its diameter between 3/16 and 5/16 inch. The relative movement between the wheel and the glass sheet is between 5 and 70 (preferably 9 and 25) feet per minute. Details are given of the results obtained on different types and thicknesses of glass using different variables such as speed, frequency, and included angle of the wheel edge. Specification 602,801 is referred to.
Patent GB-384629-A (GB)
Title: Improvements in photographic cameras
IPC: G03B19/04
Filed: 1932-09-26
Abstract: 384,629. Photographic roll-film cameras. EDER, H., 58, Villeystrasse, Munich, Germany. Sept. 26, 1932, No. 26695. Convention date, Sept. 26, 1931. [Class 98 (i).] In a photographic camera of the kind having two bellows in a common casing, one for photographing and the other belonging to a finder, with an objective holder holding two lenses, one for photographing and one for finding, and with the focusing plate and the photographic film in the same plane, means are provided for holding the film reel a between the two bellows, with the objective holder b having a bend c adapted to lie round the reel a when the objective holder is fully pushed in.
Patent GB-302000-A (GB)
Title: Improvements in or relating to seats for railway and like vehicles
IPC: B61D33/00
Filed: 1927-10-08
Abstract: 302,000. Cammell, Laird, & Co., Ltd., and Bailey, A. S. Oct. 8, 1927. Reversible seats.-In a reversible, seat, the members 1 are arranged to support the movable seat 2 at points intermediate of its length so that the end portions of the seat overlap the supporting members and the backcarrying arms 6, which are pivoted at 6<a> to the supports 1, are bent to extend under the overlapping end portions of the seat and are arranged to actuate two levers 7, pivoted to the inner sides of the members 1, and also pivoted, as by pin and slot connections 8, 9, to the arms 6 and to the seat 2. The pivots 8 may extend through slots 10 in the supports 1, and the movement of the arms may be limited by stops 11 engaging stops 12a on brackets 12 secured to the members 1. Convex runners 4 on the seat 2 may engage concave seatings 1<a> on the supports 1, and brackets 13 on the runners may extend under the seatings 1<a>.
Patent GB-251179-A (GB)
Title: Improvements in or relating to piston rings
IPC: F16J9/20
Filed: 1925-10-24
Abstract: 251,179. Deputy, H. E. Oct. 24, 1925. Pistons ; packing. -The piston of an internal - combustion engine has a number of split packing- rings 3, 3<a>, 4; each of which is of stepped cross - section, Fig. 5, the steps 5, 6, 7 conforming to similar steps in the piston grooves. Oil grooves are provided at 8, 9, 10, 13. The groove 13 has oil holes 14 which permit the return of accumulated oil to the crank case.