baber/WOPTO huggingface dataset:
Patent GB-567601-A (GB)
Title: Improvements in or relating to current interrupting devices for converting direct current into alternating current
IPC: H02M1/22
Filed: 1943-08-03
Abstract: 567,601. Converting. STACKPOLE CARBON CO. Aug. 3, 1943, No. 12511. Convention date, May 8, 1942. [Classes 35 and 38 (ii)] In an arrangement for converting D.C. to A.C., current is conducted alternately to the two halves of a centre-tapped primary 3 through fixed contacts 19, 20 which are alternately engaged by contacts on a commutator and the interruption of circuit at the contacts 19, 20 serves also to energize intermittently an electromagnet which drives a rotatable armature 45 fixed to the commutator. In the form shown, the electromagnet is the transformer magnet 3, itself the centre limb of the E-shaped core of which attracts in turn the four arms of the armature 45, the circuit being interrupted when the arm reaches a position nearest to the magnet and momentum then carrying on the armature till the magnet is again energized. The current passes from battery 6 to ground and thence to two segments 31, 32 on the commutator and thence alternately to the contacts 19, 20. A second commutator 33 is also provided, adapted to convert the A.C. from the transformer secondary 4 into D.C. The device is arranged to stop at a position from which it will start by a spring-pressed roller engaging a four-sided cam, the roller being withdrawn by energization of a magnet 48 included in the circuit as shown. In modifications, a separate electromagnet 90 drives the armature which may have eight arms, Fig. 11, and a spring 99 by bearing on a square shaft 91 ensures a correct stopping position. Fig. 12 shows the commutator for this modification, there being eight conducting segments 93 to engage alternately the fixed brushes 96, 97. Graphite particles are also' mixed with the material that forms the insulating segments 94 to produce a less sudden decrease of current as a contact 93 leaves a brush.
Patent GB-125142-A (GB)
IPC: C25D1/20
Abstract: 125,142. Coles, S. O. Cowper-. June 12, 1916. Tubes.-In the manufacture of narrow tubes, such as are used in detonators and radiators, by electro-deposit.on of metal on a mandrel, the tube is loosened, gauged and fnished by passing between three or more slightly tapered rollers p having their axes parallel bo that of the mandrel and rotating about the mandrel. The rollers p are carried by a face-plate q mounted in a chuck r of a lathe, the mandrel being secured to a slide-rest t. A plate u, attached by bolts and distance-pieces to the plate q, supports a funnel v facilitating insertion of the mandrel. Reference has been directed by the Comptroller to Specifications 25905/12 and 4142/14.
Patent GB-316348-A (GB)
Title: Improvements in or relating to motor trucks and like vehicles
IPC: B62D61/10
Filed: 1928-04-28
Abstract: 316,348. Ashworth, P. B., and Lister & Co., Ltd., R. A. April 28, 1928. Motor forecarriages. - Relates to platform motor trollies of the type having a body portion and a steering portion carrying motor, and consists in toothed steering gear by which the latter may be turned and in mounting the driver's seat on the motor housing. An internally-toothed ring 37 is secured to the main frame and meshes with a pinion 36 adapted to be: rotated by means of a vertical steering column 32 placed immediately in front of the driver's seat. The driver thus faces in the direction pointed by the front driving and steering wheel 26.
Patent GB-551997-A (GB)
Title: Improvements in or relating to automatic resetting devices for governors
IPC: B64C11/30
Filed: 1941-10-02
Abstract: 551,997. Variable-pitch propellers. UNITED AIRCRAFT CORPORATION. Oct. 2, 1941, No. 12752. Convention date, Oct. 2, 1940. [Class 114] [Also in Group XXVI] The normal speed setting of a governor is automatically altered to a lower setting where the actual governor speed falls below a certain value. The governor spring abuts on a piston 60 sliding in a sleeve 56 adjustable by a pinion 40; the rear of this piston is open to oil &c. through a connection 64 leading from a chamber 46 through which oil is fed by a pump 16 through a valve 24 to a propeller pitch control. The chamber 46 is under the pump delivery pressure in one valve position and under pressure due to changing pitch in another position. When however the extreme low pitch is reached and held by stop, the oil pressure in the chamber vanishes and the governor spring abutment piston moves back, altering the setting. An auxiliary high-pressure pump may be provided for feathering operations.
Patent GB-101427-A (GB)
Title: Improvements in Screw and like Propellers.
Inventor: PERCEVAUT EMILE JOSEPH MARIE
IPC: B63H1/12
Filed: 1916-09-11
Abstract: 101,427. Percevaut, E. J. M. Nov. 4, 1914, [Convention date]. Addition to 101,425. Screw and like propellers. -The propeller described in the parent Specification is modified in the following respects. (1) The wings B, C, Fig. 1, which are now isosceles triangles, have the angles adjacent to the angle A' of the plate A varying from 90 to 135 degrees. (2) The wings B, C are of the form shown in Fig. 2, with the angles adjacent to the angle A' varying from 91 to 135 degrees. (3) When the propeller is two-bladed, the sides opposite to the angles A' are contiguous, as shown in Fig. 2.
Patent GB-1471821-A (GB)
Title: Detergents
IPC: C11D3/08
Filed: 1975-03-27
Abstract: 1471821 Mechanical dish washing powders JOH A BENCKISER GmbH 27 March 1975 [29 March 1974] 12863/75 Heading C5D A storage-stable detergent composition in the form of free-flowing particles, suitable for mechanical dish washing, contains at least 25% of a sodium metasilicate with about 4À96 moles of water and a mole ratio of sodium oxide to silicon oxide of about 0À96 to 1 and preferably containing less than 0À3% by wt. of aluminium, less than 0À02% by wt, of iron, less than 0À3% by wt. of calcium and less than 0À3% by wt. of magnesium, 75% by wt. of the sodium metasilicate preferably having a particle size of from 0À2 to 1À5 mm., and the proportion of fines having a particle size of less than 0À1 mm., preferably not exceeding 5% by wt. A preferred composition comprises (A) 35 to 50% by wt. of sodium polyphosphate containing 4 to 8% of water; (B) 30 to 75% by wt. of the aforesaid sodium metasilicate; (C) 0 to 30% by wt. of alkaline inorganic builder, e.g. sodium carbonate; (D) 0 to 5% of a nonionic surfactant; and (E) 0À5 to 2À0% by wt. of a chlorine-releasing bleach. (D) may be ethylene oxide condensates with propylene oxide, C 8 -C 22  aliphatic alcohols or nonylphenol. (E) may be an alkali metal salt of perchlorisocyanuric acid or dichloroisocyanuric acid. (A) may be replaced wholly or in part by an organic sequestrant builder such as sodium citrate.
Patent GB-861115-A (GB)
Title: Improvements in or relating to separation of gases or vapours by diffusion
Inventor: SIMON FRANZ EUGEN
IPC: B01D53/22
Filed: 1942-09-11
Abstract: Gases are separated by causing a mixture to flow in the form of a confined sheet in contact with a porous partition, the thickness of the sheet being such that the coefficient of reduction of the separation efficiency (as defined in the Specification) is not less than 1/2 .  The mixture may be confined between a pair of porous partitions, and it is preferred that the thickness of the sheet is such that flow is substantially laminar.  The sheet may be of uniform or non-uniform thickness, and may be in the form of a plane or spirally wound sheet or may be a cylindrical sheet formed by concentric cylindrical partitions.  The gas diffusing through a partition may be led away in a direction parallel or perpendicular to the flow of the sheet, but it is preferred to lead the diffused gas away in a direction along the partition, opposite to the flow of the sheet as shown in Fig. 1, wherein the mixture is fed between partitions 1, 2 in the direction shown by arrow 9, and diffused gas is led away by hoods 12 to offtake pipes 13.  A sheet thickness of 2 mm. is mentioned.
Patent GB-1270763-A (GB)
Title: Process for the purification of mixtures of organochlorosilanes
Inventor: BAZOUIN ANDRE
IPC: C07F7/12
Filed: 1970-03-17
Abstract: 1,270,763. Separating mixtures of organochlorosilanes. RHONE-POULENC S.A. 17 March, 1970 [17 March, 1969], No. 12876/70. Heading C3S. A process for separating a mixture of organosilicon compounds at least one of which is chlorinated comprises (1) adding to the mixture, together or successively, (a) an aprotic compound or precursor thereof and (b) a compound ROH where R is H, alkyl, cycloalkyl or aralkyl, and (2) isolating by fractional distillation the organo-silicon compound containing the smallest number (including zero) of chlorine atoms bonded to the same silicon atom. The amounts of (a) and (b) must be 0À0001 to 0À01 mol. and at least 1 mol. respectively per organosilicon group possessing the largest number of chlorine atoms bonded to the same silicon atom. The aprotic compound may be an ether, e.g. diethyl or di-isopropyl ether, dioxane or THF, a ketone, nitrile, tertiary amine, hexa-alkylphosphotriamide, dialkyl-formamide, pyrrolidone or N- alkyl pyrrolidone, dialkylsulphoxide, or organosilyl phosphate or sulphate. A precursor such as phosphoric or sulphuric acid may be added to produce the silyl phosphate or sulphate in situ. Examples of component (b) are water, npropanol, butanol and pentanol and benzyl alcohol, cyclohexanol and isobutanol, and tert.- butanol. Mixtures may be used. The reaction may be carried out in an organic solvent and at temperatures of 0 to 150 C.
Patent GB-620148-A (GB)
Title: Improvements in or relating to inking mechanisms for printing presses
IPC: B41F31/30
Filed: 1946-04-29
Abstract: 620,148. Inking-mechanism. GOSS PRINTING PRESS CO., Ltd. April 29, 1946, No. 12921. Convention date, May 22, 1945. [Class 100 (ii)] In an inking-mechanism for a printing press in which a fountain roller 11 and a pick-up roller 39 cooperate to transfer ink from the roller 11 to the roller 39, the latter is mounted on bearings 41 for free rotation about a shaft 42 which is supported in eccentric bearing members 44 and a single adjusting mechanism is provided whereby a predetermined angular movement may be imparted to the shaft to vary the spacing between the rollers while maintaining ink transfer relationship. The eccentric 44, Fig. 2, is keyed to the shaft 42 and is rotatably mounted in a bracket 40, the other end of the shaft 42 being similarly mounted. An operating lever 50 is keyed to the shaft 42 and connected through a link 64 to a bell-crank lever 60 which when actuated separates the rollers 39 and 11. A rod 71 is pivotally connected to an oppositely-extending portion 70 of the lever 50 and is loaded by a spring 73 to urge the roller 39 into the ink-feeding position. The spring 73 is interposed between a fixed stop 74 and adjusting nuts 75 and 77. A finger 80 formed integrally with the lever 70 co-operates with a stop-screw 81 to control the upward movement of the finger 80 and to provide a micrometric adjustment for the position of the roller 39. The stop screw 81 is rotated by a threaded sleeve 85 screwed in an internallythreaded bracket 87 by a worm 88 carried on a shaft 89 rotated by a hand-wheel 90. A dial 95 is fixed to the top of the sleeve 85 and cooperates with a pointer 96 to indicate the magnitude and direction of rotation of the hand-wheel 90. Specifications 548,641 and 598,634 are referred to.
Patent GB-178733-A (GB)
Title: Improvements in centrifugal pumps
IPC: F04D9/04
Filed: 1921-05-06
Abstract: 178,733. Drysdale & Co., Ltd., and Drysdale, J. W. W. May 6, 1921. Pumping-machines; casings.-A centrifugal pump having the impeller and driving motor on the same vertical shaft is supported on a casting which provides part of the impeller casing b, part of the discharge volute g, the outlet port h, a seat n for the motor j, a passage from the suction port k to the eye of the pump, and an air chamber for trapping air entering the suction port with the liquid and means are provided for withdrawing the trapped air. The air chamber is formed by a partition p and a float valve r controls the air outlet to the air pumps z which are mounted on the main casting and are driven by screw or skew gear from the pump shaft. The means for removal of the air is similar to that described in Specifications 167,006 and 170,494.
Patent GB-370681-A (GB)
Title: Improvements in and relating to covers for milk cans or like vessels
IPC: B65D55/10
Filed: 1931-05-04
Abstract: 370,681. Fastenings. WINTER, P., 7, Gartenstrasse, and ALUMINIUM WELDING WORKS, Ltd., 424, Brandstrasse, both in Schlieren, Zurich, Switzerland. May 4, 1931, No. 13078. [Class 44.] A closure for a milk can or like vessel 1 with an insertable cover 2 comprises two or more stretcher members 8, 9 connected by one or more hinged joints 14 and passing through holes 4, 5 in the upright flange of the cover, so that when the hinged joint is bent the outer ends 6, 7 of the stretcher members move inwardly sufficiently to allow the insertion of the cover into the neck 20, and when the joint is straightened they bear under pressure against the wall of the neck. The stretcher members are arranged to move in a common plane, e.g. a vertical plane. The hinged joint is secured in the straightened position, e.g. by a sleeve, which may be slid over the joint and secured by a bayonet catch fastening. A groove 21, or suitably placed cam swells, or bulges are provided in the neck 20 to receive the ends of the stretcher members. The end 6 of the stretcher member 8 is prevented from falling out of the hole 11 by stops 10, and from passing too far through the hole by a shoulder 12 on the stretcher member.
Patent GB-897517-A (GB)
Title: Improvements in or relating to inserts for bottle crates
IPC: B65D1/24
Filed: 1960-04-13
Abstract: 897,517. Moulding inserts for boxes. COLE Ltd., E. K., and JARRETT, J. Aug. 16, 1961 [April 13, 1960], No. 13126/60. Class 87(2). [Also in Group XVII]. An injection moulding of polyethylene forming an insert for a crate, as shown in Fig. 1, is formed by the mould shown in Figs. 2 and 3. Spaces 11, 12, Fig. 2, correspond to connecting strips 5 joining top strips 1, 2 to base strips 3, 4, of the insert. The top strips 1, 2 are formed in slots 7a, 7b. Projections 10 are slightly shorter than projections 7 on the base of the mould to provide the strips 3, 4. Several pouring openings are provided in the plate 6. In a modification of the mould, the projections 7 are circular in cross-section and project from square platforms on the part 6 of the mould and the cruciform projections 10 have concave walls to fit snugly over the projections 7. In this embodiment the slots 7a, 7b are replaced by slots in the underside of the plate 9.
Patent GB-647778-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J61/54
Filed: 1947-05-16
Abstract: A plastic moulding compound for a discharge lamp base comprises a phenol-furfural resin and formaldehyde, together with dibutyl phthalate (as plasticizer), hexamethylene tetramine (as lubricant), benzoyl peroxide (as accelerator) and wood flour (as filler).  A predetermined proportion of powdered metal or carbon may be included to render the material semi-conducting.
Patent GB-1011058-A (GB)
Title: Multi-stage burner unit
Inventor: WEBB EDWARD FRANCIS DANIEL
IPC: F23D23/00
Filed: 1962-04-05
Abstract: 1,011,058. Burners. FUEL FIRING Ltd. July 3, 1963 [April 5, 1962], No. 13225/62. Heading F4T. A liquid, gaseous or solid fuel burner unit 31 comprises a plurality of individual burners 32 arranged in a cluster, a sprayer at the nozzle end 34a of each burner fuel supply tube 34, each burner having a common source of fuel and combustion air, and a swirler 36 in each burner for creating turbulence of combustion air in such wise that air in one burner is rotated in a direction opposite to that imparted to air in an adjacent burner. Each swirler 36 which may have adjustable vanes as in Specification 805,463 is mounted at the end of a slotted sleeve 35 surrounding the burner supply tube 34. The burner unit is mounted in a housing 33 slidable in a furnace wall 40. The burners are fed with air from a wind-box 37 and the air is cut-off when the rear of the housing 33 abuts a stop 43. There is an annular air port between the burner housing 33 and each burner. The burner unit has a central igniter 41 and a flame viewing tube 42.
Patent GB-132968-A (GB)
IPC: B25H7/04
Abstract: 132,968. Mellor, W. Buckley-. Jan. 21, 1919. Tools for setting-out work. - The scriber and stem of a scribing-block are provided with adjusting and locking means operated by eccentric devices for rapid action. The stem f, Figs. 1 and 4, passes through holes in a sleeve g, engaging a conical recess in a bracket d extending from the base a, and through a hole in a pin l having a screwed extension fitted with an adjusting nut o and pivoted cam lever p, and is locked against sliding and rotary motion by moving the lever to the position shown, but is released, except for a limited friction caused by a spring n' and interposed washers m<1>, n<1>, n<2>, when the lever p is moved into alinement with the pin l. The sleeve and pin are also provided with holes h to receive the scriber when the stem is not required. The scriber j is normally held in a clamping bracket s on the stem /, and the clamping of the bracket and also the locking of the scriber against sliding and rotary movement is effected simultaneously by a sleeve-and-pin device similar to that shown in Fig. 4. The device, however, is preferably fitted with a worm wheel u, Fig. 5, arranged between the sleeve and clamping bracket and gearing with a worm t by which a fine rotary adjustment of the scriber can be effected when the device is unlocked. The V-grooved base is provided with holes c through which pins may be protruded for use against a ledge on, or the edge of, a surface plate or marking-off table.
Patent GB-234505-A (GB)
Title: Improvements in circular grinding machines
IPC: B23Q1/48
Filed: 1925-05-22
Abstract: 234,505. Fortuna-Werke Spezialmaschinenfabrik. Ges. May 23, 1924, [Convention date]. Hinge and swivelling joints; tapered spigot-andsocket joints. - In a hydraulically driven work head for a grinding-machine, the fluid is supplied through jointed pipes 28, 29. The joints 30 - - 32 each comprise a hollow plug with apertures therein, the fluid passing from the pipe into a chamber surrounding, and rotatable on the plug.
Patent GB-334528-A (GB)
Title: Improvements in signalling devices for use on vehicles
IPC: B60Q1/34
Filed: 1929-04-30
Abstract: 334,528. Bluemel, R. E., Bluemel, F. H., and Bluemel Bros., Ltd. April 30, 1929. Road-traffic signals on vehicles.-Directionsignalling apparatus for use on road vehicles comprises a box having opposite faces provided with stencilled arrows d which are illuminated bv a lamp h carried by the supporting plate e' of the box. The plate e' is adjustably secured to a tubular rod i<1>, through which are led the wires for the lamp. One such signal may be arranged on each side of the vehicle, or a single box may be used, compartmented to display different arrows. The lamp switch s comprises a handle q rotating about a terminal member p and carrying a ball adapted to engage a recess in either of two terminals p. The switch may be carried on a telescopic arm t having a ball end v clamped in a socket w so that the switch may be positioned near the steering-wheel. In a modification a bent supporting arm is provided for the switch.
Patent GB-723146-A (GB)
Title: Improvements in or relating to electrical signalling systems
Inventor: BEAUFOY RAYMOND
IPC: H04L25/06
Filed: 1952-05-27
Abstract: 723,146. Valve circuits. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. May 21, 1953 [May 27, 1952], No. 13432/52. Class 40 (6). [Also in Group XIX] A sampling circuit for obtaining pulses from either of two outputs in dependence upon the polarity of a control wave at the instant of sampling comprises a trigger-pair valve circuit to the anodes and cathodes of which a pulse waveform is applied and to one control grid of which the control waveform is applied via a rectifier, the voltages at the anodes of the valves controlling cathode-follower stages from which the desired outputs are obtained. Fig. 1 shows a circuit comprising trigger-pair valves V2, V3 in which the input waveform shown in Fig. 2 is applied via cathode-follower V1 and rectifier W1 to the control grid of valve V2, the bias voltage on valve V3 being set by potentiometer P to a value between the positive and negative excursions of the input voltage. A pulse train " driving waveform " as shown in Fig. 2 is applied to the anodes of valves V2, V3 so that when the driving voltage is low, both valves V2, V3 are conducting and the cathodefollower stages V4, V5 are cut off. When the driving waveform is rising, one of the valves V2, V3 will be held conducting for a longer period than the other, so that the trigger circuit will assume one of its stable states and an output will be obtained from one only of the terminals O1 02. If the input waveform is positive when the driving waveform is rising, a pulse is produced at output O1 and not on output 02, and when the input waveform is negative an output is obtained at 02 and not on O1 In a modification, Fig. 3 (not shown), the driving waveform is applied to the cathode circuit of the trigger-pair and the rectifiers in the grid circuits of each valve are reversed in direction to that shown in Fig. 1 so that negative pulses are obtained at the two outputs of the circuit.
Patent GB-134802-A (GB)
IPC: G03B21/32
Abstract: 134,802. Stechbart, B. Nov. 7, 1918. Optical-projection apparatus. - A condenser lens 11 is mounted near the film-feeding mechanism and gate 9 of a kinematograph projector, and is carried by a holder 12 which is movably mounted so that it may be moved to permit access to the mechanism. As shown, the holder is secured to a door 5 hinged to a casing 1 which encloses the feeding mechanism, the reels, and a lamp house 3 having a condenser 10. Reference is made to Specifications 134,803 and 134,803.
Patent GB-702252-A (GB)
Title: Production of a natural gas substitute
IPC: C10G9/38
Filed: 1952-05-28
Abstract: 702,252. Oil gas generators. ALLIED CHEMICAL & DYE CORPORATION. May 28, 1952 [July 25, 1951], No. 13517/52. Class 55 (2) In a process as described in Specification 702,249 for making oil gas with the characteristics of natural gas in which apparatus similar to a carburetted water gas set is employed, including a furnace reactor 1, a reactor 25 and a fixer 34, gas oil &c. being introduced into a free space of both reactors and steam at the base of the furnace reactor in the make period the mixture being subjected to radiant heat from the refractory linings, the oil is directed into the reactor in countercurrent to the gases. As shown, the furnace reactor is connected to the base of the reactor constituting a dust collecting chamber 27 separated from the main part 29 by a restricted passage 28, and the oil inlet 32 at the top sprays oil down on to the ascending gases, which escaping at the top pass downwardly through the fixer. In another arrangement in which the gases flow down the reactor and up the fixer an oil inlet is disposed near the base of the reactor. Oil residuums and heavy oils may be employed. Specifications 479,832 and 683,564 are referred to.