baber/WOPTO huggingface dataset:
Patent GB-372529-A (GB)
Title: Improvements in and relating to operating and controlling mechanism for electric circuit breakers
IPC: H01H3/30
Filed: 1931-04-18
Abstract: 372,529. Automatic circuit-breakers; centrifugal switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Paxton, R.; 6312, Sherwood Road, Philadelphia, and Walle, L. S.; 349, Highland Avenue, Lansdowne, both in Pennsylvania, U.S.A.) April 18, 1931, No. 11560. Convention date, April 18, 1930. [Class 38 (v).] A switch is actuated through a toggle linkage which is collapsed to allow the switch to move to its open position, in response to reverse movement of the switch during the closing operation. A motor 3 acting through centrifugal mechanism 2 on a toggle 6, 7, effects downward straight line movement of an operating rod 1, by means of linkwork 10, 13, 14, 17, 20, to close the circuit-breaker, rebound at the end of this closing movement being prevented by a latch 26. On overload, a plunger 38 is actuated to rotate a member 36, release a pin 35 and allow link 90 to rotate, a and withdraw a pin 25 from the latch 26, so that the toggle 6, 7 collapses, and the circuitbreaker opens under the action of a spring 23. If during the closing movement, the electrodynamic forces overcome the closing force, and reverse the movement of the rod 1, the toggle 6, 7 is collapsed by a spring-biased pawl 42 which moves a toothed member 48 downwards against a spring 51, to actuate the tripping member 36, and open the circuit-breaker. The member 38 acts on the member 36 by means of a pin 53, and links 54, 55, the link 55 being connected to the, member 36, by lost motion so that tripping by the plunger 38 can take place independently of the member 48. During the closing operation of the circuitbreaker, the pawl 42 rides freely over the teeth on the member 48. Reference has been directed by the Comptroller to Specification 350,483.
Patent GB-251663-A (GB)
Title: Improvements in or relating to loud speaking telephones
IPC: H04R11/00
Filed: 1926-05-03
Abstract: 251,663. Bowerman, G., (Assignee of Pfenninger, R.). May 4, 1925, [Convention date]. Loud - speakers magnetic instruments; diaphragms. - In a loud-speaker of the pleated diaphragm type, the point from which the pleats radiate divides a diameter of the diaphragm ring in medial section. The pleated diaphragm 2 is secured in a wooden frame 1 bv a metal ring 3, the casing 5 carrying the magnet system being attached to the frame 1 bv bars 4. The centre of the diaphragm 11 of the magnetic instrument is connected to the diaphragm 2 by a rod 14 surrounded by a compression spring 17 and carrying at its outer end a ball 16 which engages a notch 18 formed in the diaphragm 2 at the point from which the pleats radiate. The pole shoes 9 of the magnet are bevelled so as to co-operate with V-shaped armatures 10 on the diaphragm 11. Instead of two pole shoes, a larger number may be employed or a single circular pole shoe may be used. In order to eliminate the natural resonance of the diaphragm 11 it is provided with a number of holes preferably arranged in a circle disposed eccentrically with respect to the centre of the diaphragm-
Patent GB-1172292-A (GB)
Title: Moulding Compositions for the Production of Foamed Articles
IPC: C08J9/00
Filed: 1967-03-13
Abstract: 1,172,292. Moulding plastic substances. BADISCHE ANILIN- & SODA-FABRIK A.G. 13 March, 1967 [18 March, 1966], No. 11640/67. Heading B5A. [Also in Division C3] Particulate moulding compositions, for the production of foamed articles, consist essentially of a mixture of a styrene polymer and an expanding agent, wherein the particles comprise 0À001-0À1% by weight on the styrene polymer, of bromination products of butadiene and/or isoprene polymers whose content of vinyl or isopropenyl groups is at least 50% prior to bromination. The moulding materials according to the invention are heated by conventional methods in moulds which are not gas-tight when closed, causing the particles to expand and fuse together to form articles whose dimensions correspond to those of the mould's internal cavity. In the examples the pre-expanded particles are moulded into a block, in a rectangular mould, by treatment with steam for 30 seconds at a pressure of 0-8 atmosphere gauge. Incorporation of the brominated products into the composition allows removal of the moulding from the mould after a short period of time, compared with previous known processes, without fear of subsequent deformation.
Patent GB-731153-A (GB)
Title: Improvements in or relating to the treatment of filamentary materials composed of water soluble polyvinyl alcohol resins
IPC: D01F6/14
Filed: 1951-05-18
Abstract: Water-soluble filamentary materials composed of polyvinyl alcohol resins are treated with boric acid, preferably in non-aqueous, e.g. methanol, solution, whereby the sensitiveness of the materials to atmospheric humidity is reduced.  Examples are given.  The Provisional Specification refers to U.S.A. Specification 2,326,539.
Patent GB-202690-A (GB)
Title: Improvements in vapourising and priming devices or apparatus for internal combustion engines
IPC: F02N1/02
Filed: 1922-04-27
Abstract: 202,690. Knorr, F. J., and Weis, J. A. April 27, 1922. Vaporizers, external.-A device for facilitating starting or for afterwards enriching the charge comprises a gasket or plate-like fitting 16 positioned between the carburettor 14 and the induction pipe 15 and having a pocket 19<a> with an electrically heated coil or element 22 and a fuel-supply pipe 19. The fuel supply and the electric current may be turned on by the movement of a starting- handle or the switch of an electric starting-motor. A starting-handle 29 is connected by linkage 32, 33, 28 to a cock 18 in the fuel pipe 19, the valve arm 28 being provided with a switch arm 26 in circuit with the coil 22. The arm 28 is also connected by a cord 34 to an arm 41 actuated bv a pedal 39, which may also close contacts 36, 37 in the circuit of an electric starting-motor after actuating the arm 41, so that the fuel cock 18 is opened and the coil 22 heated before the motor starts. The cord 34 may be used for putting the device into action independently of the starting- motor. Deflecting blades 42 may be provided in or adjacent to the gasket.
Patent GB-252002-A (GB)
Title: Improvements in electro-dynamic devices adapted for use as microphones or loud-speaking apparatus
IPC: H04R9/06
Filed: 1926-05-06
Abstract: 252,002. Soc. des Etablissements Gaumont. May 6, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Magnetic instruments; loud-speakers; diaphragms.-The diaphragm a, Fig. 1, of a microphone or loud speaker is formed as a ring of elastic insulating material, such as rubber, which is preferably corrugated and is covered by a winding of wire secured thereto by a suitable adhesive. The diaphragm and coil are supported in the air gap between the poles N, S of an electromagnet or permanent magnet by rubber bands c. In modifications, the diaphragm is formed of a triangular or rectangular shape and may be mounted on one or both of the pole-pieces by non- magnetic pegs. Figs. 6 and 7 show another form which the diaphragm may take, the supporting strips d being secured to the pole-pieces by screws e by means of which the tension of the diaphragm may be adjusted. Fig. 10 shows a construction in which two curved horns f are employed, one on each side of the diaphragm, so as to direct the sound in the same direction, When it is not desired to utilize the vibrations of the air produced in the interior of the diaphragm, these may be directed towards the external air through filters of felt or cotton by forming grooves g in the supports d, Figs. 6 and 7. or by forming channels in the pole-pieces. The diaphragm may be further supported by providing it on each face with a part which has no winding, as shown in dotted lines in Fig. 7.
Patent GB-369772-A (GB)
Title: Improvements in and relating to electrical cable installations
IPC: H02G15/24
Filed: 1931-04-22
Abstract: 369,772. Sleeve couplings ; cable end sleeves. GENERAL CABLE CORPORATION, 420, Lexington Avenue, New York, U.S.A.-(Assignees of Atkinson, R. W. ; 189, Kearny Avenue, Perth Amboy, New Jersey, U.S.A.) April 22, 1931, No. 11917. Convention date, May 8, 1930. [Classes 36 and 38 (i).] Comprises a means of distributing the electric stress in the insulating surround of a cable joint. The cables to be joined are stripped of insulation and armouring as shown, and the core ends fitted with externally threaded thimbles 32. The cables are oil-filled and each end is sealed by means of insulating tubes 35, having a small annular space between them, secured at one end to a gland which makes an oil-tight connection to the sheath and at the other the inner tube is attached in an oil-tight manner to the thimble 32. The cores are connected by a split nut 33. To secure stress distribution the joint is surrounded by an insulating sleeve 50 mounted on an insulating tube 49 and provided with cylindrical metal inserts 52 (shells) of varying axial length which are connected with metal spirals 51 (screens). The smallest shell is mounted on the tube 49 and is of a length approximately equal to the distance between the inner ends of the tubes 35 and is electrically connected with the coupling 33. The outermost shell with its screens is in electrical connection with the cable sheath. The sleeve is fitted with endplates 56 and an external tube 63 made preferably of copper and hermetically sealed. Connections 62 are provided for evacuation and impregnation. The whole can be built up as a unit and slipped into place over the joint. A method of construction of the sleeve with incorporated screens and shells by rolling a strip of insulating material suitably metallized or coated with metal to produce the screens and shells is described. Cable ends may be insulated in a similar manner. Specifications 7766/14 and 247,143, [both in Class 36, Electricity, Conducting &c.], are referred to.
Patent GB-1534768-A (GB)
Title: Transportation of gases
IPC: F17C11/00
Filed: 1976-03-24
Abstract: 1534768 Transporting natural gas as a hydrate CHEVRON RESEARCH CO 24 March 1976 [2 April 1975] 11922/76 Heading C5E Natural gas is transported in the form of a hydrate in the hold of a submersible vessel which is capable of submerging to depths at which temperature and pressure conditions facilitate the formation of the hydrate. Preferably all the N 2 , CO 2 , H 2 S, propane and higher hydrocarbons are removed from the natural gas before being mixed with water in the submerged vessel.
Patent GB-919922-A (GB)
Title: Improvements in textile drawing or drafting frames
IPC: D01H5/08
Filed: 1961-04-04
Abstract: 919,922. Gill boxes. HANSEATISCHE MOTOREN-G.m.b.H. April 4, 1961 [April 7, 1960], No. 11980/81. Class 120 (1). A gill box with needle bars arranged between endless chains has the needle bars cranked at a point between one chain and the needles and the cranked parts travel upon a guide to control the position of the needles where they are in engagement with the fibres. The link pins of the chain 3a are provided with projecting heads to support the ends of the needle bars 1.
Patent GB-102800-A (GB)
Title: Improvement in Tobacco Pipes, Cigar or Cigarette Holders.
Inventor: GREGORY HORACE
IPC: A24F3/02
Filed: 1916-02-28
Abstract: 102,800. Gregory, H. Feb. 28, 1916. Tobacco pipes and cigar and cigarette holders; cleaners.-A tobacco pipe or cigar or cigarette holder is formed with two or more parallel smokebores A, B, any one of which can be stopped and cleaned by a rod H, which is secured to the mouthpiece E by a coil I and a corresponding groove G, or by looping the end I in a circular groove in the part F.
Patent GB-540073-A (GB)
Title: Improvements in or relating to metal drills
IPC: B23B51/00
Filed: 1940-07-22
Abstract: 540,073. Drills. FERRANTI, Ltd, and HALL, G. M. July 22, 1940, No. 11981. [Classes 83 (ii) and 83 (iii)] A drill for simultaneously cutting two or more coaxial surfaces of differing diameters is provided with a like number of cutters as surfaces to be cut, each cutter other than the leading cutter being orientated in angular disposition with respect to the adjacent cutter of smaller diameter. In Fig. 1, pairs of arms a, b provided with cutting edges are formed at right angles to each other by milling four symmetrical flutes in a high speed steel rod by a 90 degree fluting cutter, then reducing the arms a axially by an amount equal to the axial length of the step in the hole to be drilled and also reducing the arms a and b to appropriate radii and forming cutting edges on the ends of the arms. A hole c and duct e may be provided for oil and the drill finally hardened, ground and backed off. Where the hole to be drilled has more than two coaxial surfaces of differing diameters alternate cutting edges b, f and a, g, Fig. 2, may be formed in the same pair of arms or a number of pairs of arms disposed symmetrically or otherwise may be used. Each cutter may alternatively consist of a single edge instead of a pair, or several cutting edges may be used for each surface. In the latter case an appropriate number of arms may be provided for each surface. A twist drill provided with pairs of arms b, a, f, g, Fig. 6, for finishing four coaxial surfaces may be formed by fluting a high speed steel rod having several portions at both ends, then heating and twisting in either direction, cutting into halves, and then forming the cutting edges as previously described to form duplicate or different drills.
Patent GB-1042785-A (GB)
Title: Improvements in or relating to calculating machines
Inventor: KITZ NORBERT
IPC: G06F7/498
Filed: 1964-03-21
Abstract: 1,042,785. Electric calculating apparatus. BELL PUNCH CO. Ltd. March 16, 1965 [March 21, 1964], No. 12036/64. Heading G4A. In an electronic calculating apparatus comprising a plurality of orders of digit keys K (Fig. 1, not shown), on which a multiplicand may be set and a register comprising a plurality of electric-pulse-operated counting devices R in which a multiplier may be stored, the digits of the multiplier are successively removed from the register and the multiplicand is entered into the register counting devices a number of times equal to the value of the removed digit. The digit removed from the register is entered into a buffer store BR in complement form when a bi-stable device BC is in an unset state and when the bi-stable device BC is subsequently in the set state the numbers on the keyboard K are entered into the register counting devices R a number of times until the buffer store BR registers zero. The counting devices R are gated RG with pulses from a first timing device TR and pulses H produced during a period determined by a second timing device TK which controls gates KG to a common line K for the keyboard K. A carry store CS is set when any counting device R passes through zero which subsequently sets the bistable device BC controlling pulses through a gate G11 to the counting devices R on the H line. The timing devices TR, TK are stepped so that in a first stage the three highest digits set on the keyboard K are entered in the three lowest counting devices R and the adjacent denominational digit is removed, and in subsequent stages one stepping pulse of the second timing device TK is suppressed to provide four, five ... denominations in the register for entering the product.
Patent GB-1303921-A (GB)
IPC: G01R5/28
Filed: 1971-04-29
Abstract: 1303921 Testing electrostatic properties; measuring charge RHONE POULENC SA 29 April 1971 [29 April 1970] 12140/71 Heading G1U An apparatus for measuring the ability of a material to acquire and retain electrostatic charge comprises a rotor 7, Fig.1 carrying both a h.v. charge-inducing electrode 9 and a chargesensing electrode-10, and a fixed plate 1 having a circular array of holes 2 and which in use is interposed between the rotor and the material to be tested. When, as the rotor rotates, the charge-inducing electrode 9 passes over a hole  the area of material exposed by the hole becomes charged by corona effects, and when the chargesensing electrode 10 subsequently passes over the hole it provides a signal representative of the instantaneous value of the charge on that area of material. The plate 1, rotor 7 and rotor driving motor 3 form a portable unit which can be placed on any material to be tested in situ. The electrode 9 comprises a radially-arranged tungsten wire connectible to a l.v. source 35 via a sliding contact 14, 17. The charge-sensing electrode 10 is a disc connected via a bearing 32 to an amplifier 39, detector 41 and meter 42. In use, the chargeinducing electrode 9 is energized and the meter indicator brought to a reference position by calibrated adjustment (40) of the amplifier gain, the magnitude of the adjustment being a measure of the potential which has been acquired by the material. The charge-inducing electrode is then disconnected from the l.v. source, and the time taken for the meter indication to fall to 50% of its original value measured (43-46). The charging and discharging curves may be displayed on an oscilloscope or recorder. Several materials may be tested simultaneously by placing one sample of each beneath a corresponding hole 2 and connecting to the charge-sensing electrode an oscilloscope synchronized with the rotor 7. The surface properties of an object, e.g. the properties of a paint layer, are said to be tested if the fixed plate 1 is placed directly on the object. Otherwise, the fixed plate is spaced slightly from the object by insulating feet. The apparatus may also be used to examine a surface which is already charged.
Patent GB-1144174-A (GB)
Title: Improvements in or relating to moulds for use in metal casting
Inventor: DUNLOP ADAM
IPC: B22C1/06
Filed: 1966-03-19
Abstract: 1,144,174. Carbon impregnated mould. IMPERIAL METAL INDUSTRIES (KYNOCH). 17 March, 1967 [19 March, 1966], No. 12217/67. Heading B5A. [Also in Divisions C1 and C3] A mould suitable for use with highly reactive metals comprises a body of refractory material impregnated with carbon obtained by carbonizing furfuryl alcohol. In an example a ceramic lost-wax shell-mould, made and dewaxed as in Specification 1,140,451, is heated to 1000‹ C. to eliminate volatile material, cooled, saturated with HCl vapour, and filled with furfuryl alcohol containing HCl as polymerization catalyst. When absorption of alcohol ceases, the excess is poured out, and the mould heat-treated to cause resinification and carbonization as follows: 12 hrs. at room temperature; 12 hrs. at 150‹ C. in air then cooled to room temp.; in N 2 , 12 hrs. being heated from room temp. to 900‹ C., 2 hrs. held at 900‹ C., and then cooled to room temp. About 5% wt. C is present in the mould.
Patent GB-1255416-A (GB)
Title: Process for the production of beadlets
IPC: A61K9/50
Filed: 1969-03-07
Abstract: 1,255,416. Making beadlets. SUMITOMO CHEMICAL CO. Ltd. 7 March, 1969 [11 March, 1968], No. 12246/69. Heading A5B. [Also in Division B8]  Beadlets comprising one or more particles or droplets of a solid or liquid "active" substance encased within a larger particle of a film-forming, gelible, hydrophilic substance are prepared by: i) forming an aqueous emulsion or suspension of the active substance (with or without an emulsifier/supending agent), ii) adding thereto an aqueous solution of a gelable hydrophilic substance, iii) forming a dispersion in this system of a solvent which is immiscible with the aqueous phase of the system with the aid of a surfactant which is added to either phase, iv) converting the dispersion thus obtained to a system wherein droplets of the original emulsion or suspension exist in a continuous phase of the immiscible solvent by addition of further immiscible solvent (same or different) or by raising the temperature or by addition of multivalent metal ions (this step being carried out at a temperature above the gelation point of the hydrophilic substance) and cooling the mixture to below the said gelation point. The beadlets may be washed, hardened and dried by conventional methods and may be employed when a delayed or gradual release of the active substance is desired. A wide variety of active substances, and hydrophilic substances and suitable surface active agents are mentioned and specific examples relate to the encapsulation of vitamin A, #-carotene, linoleic acid, vitamin D 2  (in peanut oil), ascorbic acid (dispersed in edible fat), hydrocortisone acetate, methyl salicylate, peppermint oil, peanut oil, petroleum spirit and trichlorodiphenyl. The preferred gelable substance is gelatin.
Patent GB-600603-A (GB)
Title: Improvements in or relating to propeller controls
IPC: B64C11/42
Filed: 1943-07-30
Abstract: 600,603. Fluid-pressure servomotor-control systems. UNITED AIRCRAFT CORPORA - TION. July 30, 1943, No. 12442. Convention date, Nov. 5, 1942. Drawings to Specification. [Class 135] [Also in Groups XXXIII and XXXVIII] A variable-pitch propeller is controlled hydraulically through a constant speed governor or a manual control, the particular governing system to be employed being selected manually, and means is provided for visibly indicating the angle at which the propeller is set by either control. The subject-matter of the Specification is similar to that described in Specification 560,522 with the modification that pressure fluid for feathering, &c. when the propeller is not rotating may be obtained from an accumulator.
Patent GB-108223-A (GB)
Title: Improvements in Trays.
Inventor: BILTON GEORGE EDWIN
IPC: A47B13/14
Filed: 1916-09-02
Abstract: 108,223. Bilton, G. E. Sept. 2, 1916. Trays.-A tray is provided with pairs of legs 6 mounted on hinged bars 4 and retained in the extended position by springs 10 engaging the parts 8 of plates 7 secured to the bars. When the handle grips 19 are turned, connexions 20, 21 cause plates 13, loosely secured to the bars 4, to move the springs out of engagement with the plates 7 and to fold the legs against the underside of the tray.
Patent GB-551860-A (GB)
Title: Improvements in or relating to pipe and like couplings
IPC: F16L37/18
Filed: 1941-09-26
Abstract: 551,860. Releasable fastenings. GULLICK, Ltd., and SEAMAN, T. Sept. 26, 1941, No. 12474. [Class 44] [Also in Group XXVIII] In a pipe or like coupling wherein one or more cams 15 connected to one member 11 engage a part, such as a collar 16, on the other member 10 to hold the parts together, adjustment for taking up wear is made by mounting the cams on eccentric spindles 24, or links 13 carrying the cams on eccentric pivots 25, or by varying the length of the links 13, or by adjusting the collar- 16 along the member 10, or by mounting the links 13 on pivots 21 arranged eccentrically in a four-sided block 20 which may be inserted in four different positions in slots 22. The two members 10, 11 engage in spigot-and-socket fashion. The cams 15 are double-ended so that either end may be used, and they are turned into locking position by a tommy bar inserted in a hole in the cam surface. Friction devices for holding the pivot pins in the adjusted position are also described. The invention is specially applicable to couplings of the kind described in Specification 267,848, [Class 99 (i)].
Patent GB-556517-A (GB)
Title: Improvements relating to footwear
IPC: A43B13/12
Filed: 1942-09-05
Abstract: 556,517. Boots &c. LIBSTEIN, N., LIBSTEIN, S., and LIBSTEIN, D. Sept. 5, 1942, No. 12547. [Class 17 (ii)] A boot is provided with a sole 1 made from scrap machine or conveyer belting, the edges of which are bound with thin leather 2, and this sole is provided with a tread made of scrap pieces of leather 6 - - 9, or with a second sole made from scrap belting, which may also be furnished with a heel piece.