baber/WOPTO huggingface dataset:
Patent GB-542528-A (GB)
Title: Improvements in or relating to the manufacture of methyl borate
IPC: C07F5/04
Filed: 1940-06-10
Abstract: 542,528. Trimethyl borate. DU PONT DE NEMOURS & CO., E. I. June 10, 1940, No. 10080. Convention date, June 10, 1939. [Class 2 (iii)] Trimethyl borate, is made by heating methanol with boric acid, and fractionally distilling an azeotropic mixture of methanol and methyl borate from the re-action mixture. The methyl borate may be obtained by washing the distillate with cold concentrated sulphuric acid, separating the upper layer and redistilling. The methanol is preferably employed in excess of the stoichiometric proportions. Examples are given.
Patent GB-418980-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J61/04
Filed: 1933-04-04
Abstract: 418,980. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and RYDE, J. W., c/o General Electric Co., Wembley, Middlesex. April 4, 1933, No. 10094. [Class 39 (i).] In tubes wherein the temperature is to be maintained above atmospheric so that the vapour pressure of some substance therein is maintained, a metal lining 3 is mounted inside the tube at its end. It receives heat from the electrode 2 and transmits it by conduction to those parts which may be inadequately heated, such as the end or the wider part 6, Fig. 2, of the tube. The upper end of the lining may be bent over as at 7, Fig. 3, or inclined to pick up heat from the electrode. The leads 5 pass through holes in the lining ; this may be polished on its exterior and blackened inside. Specifications 392,509 and 397,162 are referred to.
Patent GB-267728-A (GB)
Title: Improvements in carburettors
IPC: F02M9/02
Filed: 1926-04-17
Abstract: 267,728. Binks (1920), Ltd., C., Binks, .H., and Binks, C. L. April 17, 1926. Spray carburettors. - 'The invention redates to carburettors such as that described in Specification 192,934 in which a pilot and a main nozzle are provided in the lower wall of a straight-through passage directly under a throttle and an air valve, the main nozzle projecting up into the airway, and consists in forming the cylindrical throttle valve D with a longitudinal slot d working over a rectangular tubular extension a of the cover plate A<2>. The extension serves as a cylinder for an air control valve B leaded by a spring g and actuated by a wire g<1>. The main nozzle G projects into the airway and the pilot nozzle F is below the lower surface thereof. The discharge from the nozzle G can be independently controlled by the valve B. The throttle is recessed at d' to accommodate a spring m, and is actuated by a wire M.
Patent GB-348804-A (GB)
Title: Improvements in and relating to engine starting mechanism for motor road vehicles
IPC: F02N1/02
Filed: 1930-03-31
Abstract: 348,804. Turning-gear. ROBERTS, R. E., Oak Leigh, Mynydd Isa, near Mold, Flintshire. March 31, 1930, No. 10137. [Class 7 (v).] In an arrangement for moving the starting-handle 3 or its shaft 2 axially out of engagement with the engine shaft 1 in case of backward rotation of the engine shaft, means are provided for preventing accidental longitudinal displacement of the starting- handle or its shaft. As shown, a pawl 14 pivoted at 15 on the starting-handle 3 or its shaft 2 trails obliquely in a groove 17, which may be ratchettoothed, in a plate 18 fixed on the chassis. Backward rotation of the shaft 2 tends to align the pawl parallel with the shaft 2, displacing the shaft axially out of engagement with the engine shaft. To prevent accidental disengagement of the shafts 1, 2 during cranking up, the plate 18 is provided with a circular rim 19 slidably engaged by a sheath 20, Fig. 2, driven round by a pin 21 on the starting- handle. An arm 22 on the handle 3 carries a rectangular pivoted block 23 which normally engages a recess in the sheath 20. The arm 22 carrying the block 23 is outside the face of the sheath 20 and the block tends to keep the shaft 2 anchored against end displacement when the handle 3 is cranked. The shaft 2 engages the engine shaft 1 by means of rectangular blocks 5 pivoted on arms 4 on the shaft 2 and engaging projections 6 pivoted at 7 in a collar 8 on the engine shaft. The projections 6 are controlled by springs 9 so as to be rigid, in the position shown in Fig. 1, against the thrust of the blocks 5. When the engine starts, the springs 9 allow the projections 6 to trail past the blocks 5, and abutments such as pins 10, Figs. 1 and 5, take the impact of the projections 6 and relieve the blocks 5 of this impact. In order that the faces of the blocks 5 and projections 6 shall bed accurately together if the shafts 1, 2 are not in accurate alignment, the collar 8 is allowed some play on the shaft 1, which carries a pin 11 in loose engagement with slots 12 in the collar 8, Fig. 6. When the shaft 2 is moved slightly backwards by the pawl 14 on reversal of the engine shaft, the pivots 4 of the blocks 5 are behind the projections 6 and the blocks 5 are free to rotate without driving the shaft 2.
Patent GB-733429-A (GB)
Title: Improvements relating to copy-holders for use with photo-reproduction cameras
Inventor: SPRIGGS JOHN ERIC
IPC: G03B27/62
Filed: 1952-04-22
Abstract: 733,429. Copy-holders for photo-reproduction cameras. PICTORIAL MACHINERY, Ltd. April 22, 1952, No. 10162/52. Class 98 (1). The copy-holder, which may be mounted for movement about a horizontal axis between a horizontal loading position and a vertical operative position, comprises a rectangular casing having a transparent cover hinged or otherwise movably mounted on its front (camera facing) face, a transparency support, a blanket carried by a blanket holder interposed between the transparency support and the inside of the cover, and means co-operating with the casing for resiliently urging the transparency support and thereby the blanket towards the cover to support opaque copy thereagainst, the blanket and blanket holder being removable to expose the cover to a rear opening and thus adapt the copy-holder for use with transparencies. A glass panel may be provided to close the rear opening. As shown the casing comprises walls 16 (Fig. 4) with glass panel 23 (Fig. 5) in cover 22 hinged thereto, and the transparency support (Fig. 3 in dash lines) has rigid side members 26 of channel section with ends guided for limited movement towards the cover 22, which members 26 are bridged by two parallel cross bars 27 slidably mounted thereon by blocks 28 (Fig. 5) provided with set screws 33. Slides 40 carrying spring-loaded pins on the cross bars 27 serve as rests for a transparency. The transparency support is urged towards the cover 22 by two pairs of spring-loaded legs (Figs. 6 and 8, not shown) pivoted to each of the side members 26 and bearing upon flanges provided in the frame walls 16 of the casing. The frame walls 16 have also an external flange 20 (Fig. 5) to support the blanket holder 21 which incorporates a frame 47 having a vacuum seal 48 for a blanket board 50 carrying the blanket 49 shown as pressed against the front glass panel 23. Four spring-loaded roller masking blinds 51 (Figs. 3 and 5) are fitted along the sides, top and bottom of the cover 22, the front ends of the blinds having cross bars 52 carried by slides 53 mounted on rails 54, the slides 53 having set screws 55 to retain the blinds in a chosen masking position.
Patent GB-595644-A (GB)
Title: Improvements in liquid fuel burners suitable for gas-turbines
IPC: F23R3/38
Filed: 1945-04-23
Abstract: 595,644. Generating combustion products under pressure. GRIFFITH, A. A. April 23, 1945, No. 10184. [Class 51 (i)] [Also in Group XI] Liquid fuel discharged from jets 34, 35 between discs 30, 31, 32, 33 is atomized by air passing between the discs 30, 31 and deflected by an annular ring 36 so that the air-fuel mixture is delivered inwardly in the opposite direction to the main air flow through a passage 11. The main air flow rotates the discs 30, 33 by imping- ing on vanes 19 carrying the discs and vanes 37 carried by the discs. Liquid fuel is supplied to jets 34, 35 through a passage 24 in the shaft 18 and metering ducts 21, 22 in the vanes 19. Part of the combustion products leaves the combustion chamber through a passage 14 to drive the air compressor and the remainder flows through a passage 15 to a power turbine such as described in Specification 595,642, [Group XXVI]
Patent GB-1268015-A (GB)
Title: Method of fabricating cables
Inventor: MILDNER RAYMOND CHARLES
IPC: H01B13/14
Filed: 1970-03-03
Abstract: 1,268,015. Cables. DOW CHEMICAL CO. 3 March, 1970 [3 March, 1969], No. 10189/70. Heading H1A. [Also in Division C3] A process for making an electric cable 1, comprising a conductor 2, a conductor screen 3 of an electrically conducting polymer material, an electrically insulating layer 4 of polymer material, a core screen 6 of an electrically conducting polymer material, and a metal shield 7, consists of depositing the core screen on the insulating layer by passing the cable through a bath containing the conducting polymer material. The core screen comprises between 25 and 60% by weight of carbon black, the particles of which may be elongate, and a blend containing specified quantities of a copolymer of an olefin and an ethylenically unsaturated carboxylic acid. Alternatively the blend may consist of a terpolymer of specified quantities of an olefin, an ethylenically unsaturated carboxylic acid and an ester of ethylenically unsaturated carboxylic acid. In a modification of the process the core screen may consist of two layers, the inner layer extruded and the outer layer deposited on it using the process claimed. Several examples are given of the specific materials and quantities used.
Patent GB-651252-A (GB)
Title: New or improved ornamented articles of moulded plastic compositions and methods of producing the same
IPC: B44C5/06
Filed: 1946-04-02
Abstract: Ornamental or other articles, e.g. table mats, having embedded therein one or more animal or vegetable bodies such as leaves, flowers, insects, &c. are moulded from transparent or translucent thermoplastic or thermosetting plastic compositions.  The natural body is first completely dried by exposing it in an insulating container to a high-frequency electric field, and then disposed together with the desired moulding composition in a mould cavity, the whole then being moulded under appropriate conditions.  The body or bodies may be completely embedded or have a surface exposed.  Leaves or flowers may be caused to imbibe a dye of appropriate hue before being dried.  A closed mould may be employed which locks under full moulding pressure so that it may be removed from the press to cool, when using thermoplastic compositions, a second mould then being placed in the press.  A preliminary low-pressure may first be applied until the composition coalesces, all air being removed in this way. The flowers, leaves &c. in an article may be arranged in different places.  The Provisional Specification refers to embedding shells and feathers as well as flowers, leaves, and insects.ALSO:Animal or vegetable bodies such as flowers, leaves, insects, are embedded in a moulded mass of transparent or translucent thermoplastic or thermosetting plastic composition, the bodies together with the moulding material being placed in a moulding cavity and the whole moulded under appropriate heat and pressure conditions.  A light pressure only is first applied until the granules of the plastic composition have become plastic and coalesced.  The bodies may be wholly embedded or have a surface exposed.  Before moulding the bodies are completely dried in a high frequency electric field and before drying may be caused to imbibe a suitable dye.  The Provisional Specification refers to embedding shells and feathers as well as flowers, leaves and insects.
Patent GB-375883-A (GB)
Title: Improved manufacture of carboxylic acid amides
IPC: C07C233/12
Filed: 1931-04-07
Abstract: Carboxylic acid amides are made by heating a carboxylic acid, a primary or secondary amine, and a dehydrating agent in the presence of aluminium chloride with or without an indifferent solvent or suspension medium.  In examples (1) the anilide of anthraquinone-b -carboxylic acid is made by heating the corresponding acid, aniline, aluminium chloride and phosphorus trichloride in toluene, (2) salicylanilide is made by refluxing salicyclic acid, aniline, aluminium chloride and phosphorus trichloride in chlorbenzene.
Patent GB-982651-A (GB)
Title: Apparatus for supplying energising current to direct-current electro-magnets
IPC: H01H47/22
Filed: 1961-03-21
Abstract: 982,651. Rectifying, supply systems for lifting magnets. W. BINDER, [trading as BINDER MAGNETA KOM. GES]. March 21, 1961 [April 23, 1960], No. 10321/61. Headings H2F and H2H. A direct current operated electromagnet 3 is supplied from an A.C. source 1, the switching element 29 " opening " when the current through the coil 3 of the magnet reaches such a value that the armature of the magnet has moved to its attracted position to effetively connect in parallel the initially series-connected full-wave rectifiers 12, 13, thus reducing the current flow through the magnet 3 during " hold on." In the arrangement shown, the parallel connection of the full wave rectifiers 12 and 13 is effected via half wave rectifiers 14, 15 and the switching element 29 comprises a transistor which is " on " while surge or impulse currents flow through the transformer 25 and which is switched off under steady state conditions. In an alternative arrangement, Fig. 2 (not shown), the switching element comprises a mechanical switch which is actuated by the magnet armature.
Patent GB-418112-A (GB)
Title: Improvements in or relating to bag-making and like machines
IPC: B31B50/00
Filed: 1934-04-06
Abstract: 418,112. Making paper bags. HESSER MASCHINENFABRIK AKT.-GES., F., 99, Olgastrasse, Cannstatt, Stuttgart, Germany. April 6, 1934, No. 10399. Convention date, April 6, 1933. [Class 94 (ii).] A pressing mechanism, for the folding mandrels 3 of a paper bag-making machine, consisting of a longitudinal seam presser 4 and a counter-plate 15 for the mandrels, which revolve in a vertical plane, is characterized in that the longitudinal seam-presser 4 and the counter-plate 15 for each mandrel are positively connected, e.g. by a link 21. The paper bag blank 30 is fed at 26, 27 to the table 25, station I, and is formed to U-shape around the mandrel 3 as the latter moves through the table. The mandrel then reaches the counter-plate 15, which by cam action 9 was kept removed therefrom, and the U-shaped blank is gripped therebetween. The cam drive 9 is now rotated by a rod 12, with the mandrels, to the next working station II where the U-shaped blank is fully folded around the mandrel being gummed longitudinally. At station III the cam 9 is rotated backwardly so that the seam presser 4 is brought against the seam whilst the counterplate 15, due to positive link connection 21, is moved away from the mandrel. The bottom of the bag is completed at station III, pressed at station IV and the completed bag removed at station V, the seam presser being raised by cam action 9 for this purpose.
Patent GB-788653-A (GB)
Title: Improvements in or relating to silicone rubber
Filed: 1954-04-08
Abstract: A vulcanizable composition comprises a silicone, a filler, a vulcanizing agent and an organo-tin compound in amount, e.g. of 0.1 to 2.0 per cent by weight of the silicone.  As silicones there are used highly viscous or rubbery polymeric siloxanes, silmethylenes or siloxane-silmethylenes.  Organo-tin compounds specified are polymeric organo-tin oxides and hexaorgano-distannoxanes in which the organic radicals may be, e.g. ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl or phenyl radicals and the terminal radicals may be alkyl, aryl, alkenyl, hydroxyl or carboxyl radicals; tin alkoxides, e.g. dibutyl-butoxy tin; organo-tin carboxylates of monobasic or polybasic saturated or unsaturated carboxylic acids; reaction products of organo-tin halides with compounds containing a methylene group activated by a vicinal -CO, -NH2, -CN or -SO2 group; tin salts of carboxylic acids, e.g. tin-stearate, -palmitate, -oleate, -ricinoleate, and -chelate.  In examples, rubbers were made from compositions of (1) a dimethylpolysiloxane, silica, titania, benzoyl peroxide and polymeric dibutyl-tin oxide in methylene chloride; (2) dimethylpolysiloxane, kieselguhr, t-butyl perbenzoate and hexabutyl distannoxane; (3) dimethylpolysiloxane, titania, silicic acid, benzoylperoxide and the reaction product of diethyl tin oxide and diethyl-dichloro-stannane; and (4) dimethylpolysiloxane, silica, benzoyl peroxide and tin stearate.
Patent GB-554824-A (GB)
Title: Method of separating water soluble vitamins from other water soluble materials
Filed: 1941-08-16
Abstract: 554,824. Vitamins ; sugars. AMERICAN DAIRIES, Inc., and QUAKER OATS CO. Aug. 16, 1941, No. 10434. Convention date, Aug. 17, 1940. [Class 2 (iii)] [Also in Group VI] Water-soluble vitamins, such as B1, B2, B6 and pantothenic acid are obtained as a concentrate by' treating an aqueous extract obtained from vegetable matter such as grass, with an aliphatic monohydric alcohol having 3-5 carbon atoms. The vitamins dissolve in the alcohol, the remaining aqueous phase being a concentrate of fructosan. Specification 435,798 is referred to. The Specification as open to inspection under Sect. 91 includes the use of alcohols other than methyl and ethyl alcohols, such as aromatic alcohols, and also phenols. This subjectmatter does not appear in the Specification as accepted.
Patent GB-234608-A (GB)
Title: Improvements in or relating to hinges for picture frames, or other articles having hinged struts
IPC: A47G1/14
Filed: 1924-04-28
Abstract: 234,608. Cowland, J. April 28, 1924. Barrel hinges.-The struts S for picture frames and other articles, such as easels or blackboards, are attached to the frame F by hinges that have abutments or stops 6 which limit the opening movement of the strut, these stops being formed as torques at one or at both sides of the roller barrel socket 5 to project over and partly encircle the barrel socket or sockets 2 of the other hinge part. The attachment plate is cranked at 7, as shown.
Patent GB-105378-A (GB)
IPC: E01B11/50
Abstract: 105,378. Lincoln, J. C. April 6, 1916. Rail bonds.-A laminated U-shaped bond c provided at its extremities with sleeves c<11>, Fig. 5, or with three-sided end-pieces i, Fig. 6, having side extensions i<2>, is held in position against the rail ends by a clamp, as shown in Figs. 2 and 8, and welded to the rail by an arc formed between a carbon negative electrode and the rail and bond. Additional copper may be welded on to the joint to increase the electric conductivity. The bond may be located in a carbon mould d, Figs. 2 and 3, during the welding process.
Patent GB-574365-A (GB)
Title: Improvements in and relating to open circuit breathing apparatus
IPC: A61M16/00
Filed: 1943-06-29
Abstract: 574,365. Open-circuit breathing apparatus. BAILEY, A. June 29, 1943, No. 10541. [Class 81 (ii)] In open-circuit breathing apparatus carried by the user and comprising cylinders of compressed air and a lung operated valve, the valve comprises a tubular or hollow element 1 with a connection 2 for the mask, and having a flexible wall or diaphragm 3 which, when the user inspires, operates a lever 7 against the action of a spring 9 to open a valve 22 leading from the tubular element to a chamber 24 enclosing a bellows 25, the bellows being adapted to collapse on the pressure in the chamber reaching a determined maximum, for example, two atmospheres, and close a second valve 40 against the action of a spring 36, to prevent further admission of compressed air through the pipe 43. The flexible wall 3 may be made of rubberised fabric and is protected by a cover 44 having apertures 47 which may be closed by the rotation of a shutter 48 if the flexible wall is damaged. Rotation of the shutter also operates an inverted U-shaped member 54 to press a boss 57 against a plate 6 in order to maintain valve 22 in the open position. The tension of the spring 9 may be adjusted by rotating a milled disc 16. The bellows 22 may be of the flexible metallic cylindrical corrugated wall type, and has its interior in direct communication with the tubular element through two hollow bolts, and its lower plate connected to a lever 30 pivoted at 31, one end of the lever operating the valve 40 and the other end being controlled by the spring 36. Fig. 5 shows the lung-operated valve A in position on the back of the user between two cylinders of compressed air, and connected to a multi-way piece 60, one branch of which leads to a pressure gauge attached to the belt of the user. The tube leading to the mask may have a branch to a breathing bag enclosed in a case also attached to the belt. A modification is described in which only one cylinder of compressed air is used.
Patent GB-1140046-A (GB)
Title: Improvements in or relating to dichroic crystal-optical devices
IPC: G02B5/30
Filed: 1966-03-10
Abstract: 1,140,046. Dichroic crystal-optic devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 10, 1966 [March 13, 1965], No. 10568/66. Heading G2J. A dichroic crystal-optic device for use in the near I.R. up to 10Á includes at least one body comprising one or more single crystals of hexagonal α-SiC. The SiC may be doped with more than 10<SP>15</SP> atoms/cc of an active impurity, preferably such that the SiC contains more than 10<SP>15</SP> charge carriers/cc. The impurity may be an acceptor or a donor e. g. N 2 . Single crystals having two parallel faces, or plates of a plurality of such crystals equally orientated, may be used. The invention may be applied to a polarimeter.
Patent GB-492823-A (GB)
Title: An improved method of and apparatus for sand-blasting metal surfaces
IPC: B24C5/02
Filed: 1937-04-14
Abstract: 492,823. Sand-blast. STEPHEN & SONS, Ltd., A., and STEPHEN, J. G. April 14, 1937, No. 10569. [Class 60] In sand-blasting parts of ships or other metal plates, the blast, containing metallic particles or other abrading-material, is directed on the surface at an angle thereto by means of a nozzle 8, which is supported by lugs 6 and a sleeve 7 in the inlet limb 4 of a tubular elbow, the outlet limb of which is connected to a suction pipe ; the nozzle is held by a screw 14. At the base of the inlet limb 4 an oval opening 9 is provided, the edge 10 of which is flat, so as to rest on the surface XX being treated, and clamped to the limb by strips 12 is an oval pad 13 of rubber, &c. pressing on the surface XX. In operation, the pad 13 is pressed down owing to the reduction of pressure created in the region of the opening 9, and abrasive particles, &c. are withdrawn by the suction pipe and passed to a separator. A handle may be fitted to the elbow, which may be mounted on rollers or runners, or the elbow may be mounted on a roller carriage.