baber/WOPTO huggingface dataset:
Patent GB-838590-A (GB)
Title: Improvements in or relating to fuel injection valves
IPC: F02M61/10
Filed: 1958-09-23
Abstract: 838,590. Fuel injectors. BOSCH G.m.b.H., R. Sept. 23, 1958 [Sept. 26, 1957], No. 30290/58. Class 7(3) A fuel injection valve has portions 3, 4 of different diameters, D 1 , D 2 , slidably engaging the valve housing 1, 2, the fuel acting on the top of the portion 4 to assist the valve closing spring 8 and, through a bore 14 in the valve, on a larger area step at the bottom of the portion 3 to open the valve. The valve may be of the pintle type shown, having a conical seat 10, or may have a plain flat seating face. The upper part 2 of the valve housing carries a ring 5 engaging a ring 6 held in position by a locking ring 7 sprung into the wall of the part 1.
Patent GB-364682-A (GB)
Title: Improvements in or relating to driving mechanisms for intermittently moving a strip such as a cinematograph film
IPC: G03B1/18
Filed: 1930-10-10
Abstract: 364,682. Kinematograph apparatus, feeding webs. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A., and FULLERTON, D. P., Bush House, Aldwych, London. Oct. 10, 1930, No. 30393. [Class 97 (i).] A device for forming the loops in intermittentlyfed strips or films in kinematograph &c. mechanism consists of a driving shaft 10 which is axially movable and is common to the feed sprocket 22 and the guide rollers 26, 30 being connected thereto by worm gearing. The worms 29, 25, 31 are of different pitch, and the worms 29, 31 are of opposite hand and coact with worm wheels disposed on opposite sides of the shaft so that axial movement of the shaft draws the film from the feed and take up rolls. The shaft 10 is driven from the shaft 13 with which it is slidably connected by the pin-and-slot 11 and spring 33, and its axial movement is effected when desired by a lever 34 or by a cam on the gate which operates when the latter is closed. The feed sprocket is actuated by a Maltese cross &c. mechanism 21. The guide rollers 26, 30 are preferably of resilient material such as rubber, and co-operate with presser rollers 35, 36 which may be journalled on supports attached to the film gate so as to be moved aside when the gate is opened.
Patent GB-853314-A (GB)
Title: Improvements in or relating to axial flow turbo-machines such as turbines or compressors
Inventor: CLARK NEIL MILLIGAN
IPC: F01D11/02
Filed: 1956-10-05
Abstract: 853,314. Turbine and compressor blades. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Aug. 30, 1957 [Oct. 5, 1956], No. 30507/56. Class 110 (3). In an axial-flow turbine or compressor having shrouded blades, each blade has an extension or extensions which projects or project beyond the shroud in a direction away from the working portion of the blade, the extension or extensions carrying two segmental blocks, at least one of which has sealing means arranged to co-operate with a part of the machine with which the blades are relatively rotatable, the segmental blocks and the blade extension or extensions being shaped to interlock. In a first embodiment, the blades 1 are of aerofoil profile and have root portions 15, the opposite ends of the blades being formed with dovetailshaped extensions 2 which are passed through openings 4 in shroud members 3, the shrouds abutting against shoulders formed on the blades. Pairs of segmental members 5, 6 are clamped by means of bolts 8 to the blade extensions 2, the members 5, 6 having grooves which together correspond to the dovetail shape of the extensions 2. The members 5, 6 are provided with fins 7 which co-operate with the adjacent surface of the rotor to provide a seal. A plurality of parts 5, 6 are provided so as to afford a substantially continuous ring member.. In Fig. 4 the blade tip is shaped to provide a dovetail-shaped groove 12, the blade tip being passed through an opening in a shroud member 9. Two wedge-shaped members 10 are held against the sides of the groove 12 by means of a wedge-shaped key member 14 which is urged towards the bottom of the groove 12 by means of a bolt 13 engaging with the shroud 9. Sealing fins 11 are provided on the wedge members 10. In Fig. 5, the blade is formed integral with a shroud 18 and dovetail-shaped extension 19, pairs of segmental parts 20 which are grooved to correspond to the dovetail extension 19 being clamped to the extension by screws 21. Sealing fins 22 are provided on the segmental parts 20.
Patent GB-490281-A (GB)
Title: Improvements in or relating to two-way communication methods, systems and apparatus
IPC: H04B3/54
Filed: 1936-11-09
Abstract: 490,281. Telephony over power circuits ; distributing music &c. INTERNATIONAL CARRIER - CALL & TELEVISION CORPORATION. Nov. 9, 1936, No. 30509. Convention date, May 23. [Class 40 (iv)] [Also in Group XL] A combined carrier-frequency transmitter and receiver for loud-speaking telephonic communication over power or other lines comprises an instrument acting as a microphone or loud-speaker, a valve circuit operating alternatively as a modulated carrierfrequency transmitter or as a demodulator, and an amplifier, the circuit changes for transmitting and receiving being effected by switches. Transmitting. The rotary switch S is turned one step clockwise from the position shown thereby connecting loud-speaker LS, acting as a microphone, to the input of an amplifying valve VI the output of which is fed to modulating grid 4 of carrier-frequency generator V2 which is coupled by tuned transformer IC to amplifier V3 the output of which is connected over tuned transformer OT to the power line L. Condensers C1, C2, C19 are used to match the output impedance to the line impedance. The switch also short-circuits a portion of the bias resistance R8 of valve V2. Receiving. With switch S in the position shown, transformer OT is connected to the line and operates as an input transformer for valve V2 now functioning as a detector, the audio-frequency output of which is amplified in succession by valves V1 and V3 and fed to loud-speaker LS. General features of the system. Communication may be restricted to apparatus in the same building by the blocking effect of the supply meter M or of chokes inserted in the line, but transmission external to the meter may be permitted if the meter windings are shunted by suitable condensers MC. A jack J is provided for the use of head-phones when receiving. The operating voltages for the valves are provided by rectifier V4. The Specification as open to inspection under Sect. 91 comprises also (1) a modified arrangement, Fig. 2 (Cancelled) (not shown), using a separate microphone and loud-speaker and no change-over switches, reception being on the homodyne principle, (2) arrangements in an operator's set for selecting a carrier frequency for transmission to certain or all sets in the same building, (3) using jack J for plugging in a cathode-ray tube (for television) or recording apparatus, when the apparatus is receiving, or an ordinary telephone, wireless receiver or writing telegraph when the apparatus is transmitting, (4) selectively connecting up wireless receivers for transmission of different programmes, (5) applications of the apparatus to communication over the power lines between traffic control points and police booths, and communication to or on trains. This subjectmatter does not appear in the Specification as accepted.
Patent GB-802039-A (GB)
Title: Mineral-coated paper products and method of making same
Inventor: MCLAUGHLIN PAUL JOHN
IPC: D21H19/58
Filed: 1956-10-08
Abstract: A binder of a coating composition for paper comprises a salt of a copolymer of at least one alkyl acrylate with 2.5 to 7 per cent of at least one of itaconic acid, aconitic acid, maleic acid, fumaric acid, or the dimer or trimer of methacrylic acid, the said salt having a transition or inflection temperature (rigidity modulus) of 20 DEG  C. or less.  The alkyl group may have 1 to 4 carbon atoms.  In an example (1), the copolymer is obtained by emulsion copolymerization of 87 parts of ethyl acrylate, 10.5 of methyl methacrylate, 2.5 of itaconic acid, 100 of water, 6 of t - octylphenoxypolyethoxyethanol and small amounts of ammonium persulphate and sodium hydrosulphite as catalyst.  Other hardening comonomers are ethyl, propyl, or butyl methacrylates, styrene, acrylonitrile, methacrylonitrile, vinyl acetate vinyl chloride, or vinylidene chloride, &c.  Anionic or non-ionic emulsifying agents &c., e.g. sodium lauryl sulphate &c., may be used, and other free-radical catalysts are specified.
Patent GB-904268-A (GB)
Title: Improvements in or relating to improved venting device for die casting machines
IPC: B22D17/14
Filed: 1958-09-25
Abstract: 904,268. Casting-machines; vents. HODLER, F. Sept. 25, 1958 [Oct. 1, 1957], No. 30680/58. Class 83 (1). In a pressure die-casting machine having a pair of relatively movable die elements 3, 4, and at least one die face having a channel 22 for evacuating air and gases from the die cavity, there is a venting device which comprises a valve secured to the machine adjacent the die, said valve having a longitudinally movable valve element 27 therein, means for moving said valve element longitudinally to cause one end thereof to come into contact with both die elements about the orifice of the die face channel 22 prior to the casting operation and for moving said valve element away from the die elements when the injection of material into the die cavity is terminated, means within said movable valve element for allowing evacuation of air &c. from the die cavity when said valve element is in contact with said die elements, and auxiliary valve means 24 within said movable valve element for closing the die channel at a predetermined time during the injection cycle to prevent ejection of material from the die cavity. The dies are closed by the admission of pressure fluid to the cylinder 5 through conduit 18. Build-up of pressure when the dies are closed is transmitted through conduit 37 and moves the member 27, carrying a sealing ring 61 against the die elements. The die cavity may then be evacuated by means 64 connected to a conduit 23 in communication with the interior of the end 28 of the mem- 27; 57 is a filter. Molten metal is then supplied to the injection sleeve 9 and the control lever 26 moved to position III, whereupon pressure fluid is fed through conduit 20 to cylinder 15 to move the injection plunger 12. Increase of pressure when the metal passes a restricted channel 63 is transmitted via a conduit 25 to overcome the pressure of a spring 50 and move the auxiliary valve member 24 to close the orifice of the channel 22. The pressure of the spring 50 may be adjusted by screw means 52 so that the moment of closing of the channel 22 may be selected as desired. Return of the control handle 26 to position I returns the parts to their initial positions. Specification 755,080 is referred to.
Patent GB-603052-A (GB)
Title: Improved driving means for the cam-shafts of internal-combustion engines
IPC: F16H7/08
Filed: 1945-11-17
Abstract: 603,052. Tensioning chains. JAGUAR CARS, Ltd., HEYNES, W. M., and BAILY, C. W. L. Nov. 17, 1945, No. 30922. [Class 80 (i)] [Also in Group XXVII] A device for adjusting the tension of an endless chain 18 which passes over the crankshaft 11 and cam-shafts 12, 13, of an internalcombustion engine, consists of a tensioning sprocket 17 over which the chain passes, the position of the sprocket being adjustable by means of an arm 20 pivoted on a pin 21, the arm 20 coacting with an adjustable abutment 22 and being pressed thereagainst by a helical torsion spring 23, Fig. 2. Damping is provided for the sprocket 17 by the hub 24 of the arm 20 being pressed by the spring against a surface 25 of the casing.
Patent GB-281476-A (GB)
Title: Process of producing clear oils soluble in water
IPC: C10M173/00
Filed: 1927-07-19
Abstract: 281,476. Horn, A. July 19, 1927. Lubricants; fatty oils.-Vegetable oils such as castor oil are rendered water-soluble and miscible in any proportion with mineral oils, to adapt them for use as lubricants, by the following process :-They are heated to about 300‹ C. and allowed to cool; reheated to 100-110‹ C. and treated with gaseous hydrochloric acid in presence of a contact agent such as anhydrous aluminium chloride and recooled; and are blown with oxygen, air, or ozone at a temperature of 150- 200‹ C. until freed of hydrochloric acid, the blowing being continued at a temperature of 200‹ C. with the addition of a fresh contact substance such as an alkali hydroxide, carbonate, percarbonate, or perborate, or stannous chloride or an organic base such as resorcin, pyridine, quinone, hydroquinone, quinoline, hydroxylamine, or trimethylamine. The polymerized products so obtained may be neutralized with inorganic or organic bases at say, 50-60‹ C., and if necessary, be clarified by passage through a clay filter coated with a layer of basic zinc acetate or zinc borate. They may be used, for instance, as lubricants for fibres or in drilling. planing, and milling operations; or as reagents in treating water for its lime content, since a turbid solution is formed in water containing lime.
Patent GB-1156316-A (GB)
Title: Disc Brakes
Inventor: HODKINSON HAROLD
IPC: F16D65/12
Filed: 1965-07-21
Abstract: 1,156,316. Disc brakes. DUNLOP CO. Ltd. 13 July, 1966 [21 July, 1965], No. 30929/65. Heading F2E. In a ventilated brake disc, a disc portion 2 of the brake disc is provided with a series of ventilation passages extending from openings in the outer periphery of the disc portion to openings 7, 8 at the inner periphery of the disc portion, some of the openings (8) at the inner periphery of the disc portion being formed in or adjacent to the inside surface of a dished body portion of the brake disc, formed integrally with the disc portion 2, and alternate openings (7) being formed in or adjacent to the outside surface of the dished body portion of the brake disc. Each of the ventilation passages extends in a direction which is inclined substantially at 30 degrees with respect to the direction of the adjacent radius of the brake disc. The adjacent ventilation passages are separated by relatively narrow ribs 5 and one or more reinforcing ribs 6 are disposed within the passages between the ribs 5.
Patent GB-484123-A (GB)
Title: Improvements in and relating to the sleeve-valve actuating mechanism of two-stroke internal combustion engines
IPC: F02B75/18
Filed: 1936-11-12
Abstract: 484,123. Valves and valve gear. HOWALD, W. Nov. 12, 1936, No. 30945. Convention date, Nov. 12, 1935. [Class 7 (vi)] A sleeve valve 2 for a two-stroke engine is given a combined reciprocating and oscillating motion by means of a beam 11 connected at 13 to the valve and at 9 to connecting- rods 8 attached to parallel crank-shafts 7, one of which carries a crank pin or an eccentric 7<1> surrounded by a sheave 10 sliding in guides 11<1> on the beam. A point on the valve moves in a closed path C the horizontal component of which is smaller than the vertical component. The valve may control exhaust at A and scavenging and supercharging inlet at Band B<1>, as shown at the right-hand side of the Figure, or, with reverse rotation of the crank-shaft, it may control two exhausts at A and A<1> and inlet at B, as shown at the left-hand side. In the application to a radialcylinder engine, the driving-beams 11 of each two adjacent cylinders are coupled to a common cranked shaft arranged between the cylinders, and the connecting-rods 8 are replaced by circular or segmental discs, the bearing-surfaces of which, as also those of the eccentric sheaves 10 in the guides 11<1>, are curved in a transverse plane. According to the Specification. as open to inspection under Sect. 91, the valve ports may be inclined to correspond with the path of movement of a point on the valve ; also the movement of the valve about 'its axis is preferably from <1>/5 to <2>/5 of the axial-movement. This subject-matter does not appear in the Specification as accepted.
Patent GB-471649-A (GB)
Title: Improvements in electrically heated vulcanizers
IPC: B29C35/00
Filed: 1936-11-13
Abstract: 471,649. Thermal switches. DILL MANUFACTURING CO. Nov. 13, 1936, No. 31046. Convention date, Jan. 16. Addition to 470,150. [Class 38 (v)] [Also in Groups XI and V] In an electrically heated vulcanizer as claimed in the parent Specification, two metal plates 16, 17 are secured by a hollow rivet 15 which engages a clamping screw 13. The plate 17 carries an insulated terminal 18 extending through an asbestos disc 19 to a resistance heater 22 resting on another asbestos disc 21. The other end of the resistance heater is connected to an arcuate finger 23 extending over a recess 21a cut in the circumference of the disc 21. The plate 16 is provided with a spring contact finger 24. The co-operating part of the vulcanizer comprises a metal disc 25 carrying a patch 26, and provided with lugs 27 which may be bent over the disc 17 to secure the parts together. The disc 25 carries a pin 28 of fusible metal which normally holds a spring 30 in such a position that the finger 24 is pressed into engagement with the finger 23 to complete the circuit. At a predetermined temperature the pin 28 melts, the spring 30 is released, and the contacts 23, 24 separate.
Patent GB-240686-A (GB)
Title: An improved self-driving motor or engine
IPC: F03G7/10
Filed: 1924-12-29
Abstract: 240,686. Gwatkin, F. A. S., (Smith, T. L.). Dec. 29, 1924. Self-driving machines.-A hydro-pneumatic self-driving engine comprises water cylinders a having a connecting pipe m and communicating with a compressed-air chamber n by a pipe n<1>. The cylinders a are provided with plungers h connected to cranks g on the shaft e by rods i, the plungers working through asbestos-packed stuffing-boxes k and being guided by pins h<1> in slots l in the uprights l<1>, while the air chamber n is supplied with compressed air by a pump o driven by an eccentric o<3>, o<4> from the shaft e. It is stated that the displacement of the water and expulsion of the compressed air on one of the plungers h entering its cylinder a creates an expelling force against the plunger which is forced out thereby, the acting being assisted by flywheels f.
Patent GB-1393750-A (GB)
Title: Bis-1,2,4-triazolyl 5- compounds and their use as optical  brightening agents
IPC: C07D249/08
Filed: 1972-07-03
Abstract: 1393750 Bis-1,2,4-triazolyl(5) derivatives HOECHST AG 3 July 1972 [3 July 1971] 31111/72 Heading C2C Novel bis-1,2,4-triazolyl(5) compounds having the general formula wherein A is a group of the formula Q is a phenyl, biphenyl, styryl, naphthyl, thienyl, pyridyl or benzoxazolyl radical which is optionally substituted by one or more halogen atoms or alkyl, alkoxy, optionally substituted phenyl, carboxy, sulpho, functionally modified carboxy, functionally modified sulpho, acyl or acylamino groups; and Z is a phenyl radical optionally substituted by one or more halogen atoms or alkyl, alkoxy, optionally substituted phenyl, carboxy, sulpho, functionally modified carboxy or functionally modified sulpho groups, are prepared by reacting a dihydrazide of the formula with a phosphazo compound of the formula The reaction preferably takes place at a temperature of from 150‹ to 200‹ C. in inert organic solvent using stoichiometric proportions of the reactants. The novel compounds may be used for the optical brightening of organic polymers.
Patent GB-852661-A (GB)
Title: Process for the manufacture of activated carbon
IPC: C01B32/336
Filed: 1958-09-30
Abstract: Carbon is activated by treating with a mixture of sulphur dioxide, steam, and oxygen and heating to a temperature of 300-700 DEG C.  The carbon may be in the form of wood charcoal, peat-coke, or coal-coke. The process may be repeated a number of times.  Sulphur dioxide and steam evolved in the heating step may be recycled to the treatment step.
Patent GB-227975-A (GB)
Title: Improvements in or appertaining to wringing or mangling machines
IPC: D06F45/18
Filed: 1923-12-12
Abstract: 227,975. Boardman, E. Dec. 12, 1923. Mangles and wringers, driving - gear for. - The toothed boss 13 of the flywheel 14, which is loosely mounted on the spindle 4 of the lower roller, meshes with a pinion 12 which engaes the internal teeth of a circular stationary casing a and which is carried by a disc 9. This disc also is loose upon the shaft 4 and the toothed boss 10 of this disc meshes with a pinion 7, which also engages the teeth of the casing a and which is carried by a second diso 6 keyed to the shaft 4. The single pinions 7, 12 may each be replaced by a set of three or more pinions. The casing may contain lubricant.
Patent GB-801171-A (GB)
Title: A method of manufacturing cylinder heads for refrigerant compressors
Inventor: COMBEN WALTER FREDERICK
IPC: F04B39/12
Filed: 1955-11-01
Abstract: 801,171. Making composite cylinder heads. GENERAL ELECTRIC CO., Ltd. Oct. 19, 1956 [Nov. 1, 1955]; No. 31227/55. Class 83 (2). In a method of making cylinder heads for refrigerant compressors a series of laminations stamped out of sheet metal are superimposed and brazed together. In one example a cylinder head 1, Fig. 7, with bolt holes 2 and having inlet and outlet cavities 3, 24 and muffler cavities 15, 16 is formed of laminations which are stamped out with the required perforations for the bolt holes and cavities. The end laminations are similarly formed with the bolt holes 2 and inlet or outlet perforations 22, 23, 25, &c., as required. Communicating ports 17, 18 may also be formed in alternate laminations. The assembly may be held together by rivets 26 or may be tack welded at the edges. The brazing metal may be applied by painting the faces of the laminations or by drilling holes in the laminations and inserting wires of brazing metal.
Patent GB-416206-A (GB)
Title: Electric contact devices for operating direction indicators on motor vehicles
IPC: B60Q1/42
Filed: 1933-11-09
Abstract: 416,206. Road - traffic signals on vehicles. ASKLUND, S. J. E., 11, Biblioteksgatan, Stockholm. Nov. 9, 1933, No. 31260. Convention date, Nov. 10, 1932. [Class 118 (ii).] A switch for operating direction indicators comprises a sleeve 3 surrounding the steering post 1 and carrying fixed contacts 11, for left and right hand indicators, moving contacts 12 and operating members 7, 8 which are pivoted at 9 and 10 respectively. When, for example, the edge of the member 8 is raised, the link 25 lifts and the spring-pressed contact 12 engages contact 11 to complete the signalling circuit. After the turn has been made and the steering wheel turned into the straight, the member 34, carried by the wheel, which rode over dog 36 without effect in the turning movement, engages the dog and moves it so that the end 42 engages the ledge 28 on link 25 and carries the link back into its normal position in which contacts 11 and 12 are separated. Specification 378,524 is referred to.