baber/WOPTO huggingface dataset:
Patent GB-1109700-A (GB)
Title: Process for preparing tetrafluorohydrazine
Inventor: REMANICK ALLEN HARTLEY
IPC: C01B21/083
Filed: 1966-07-13
Abstract: Tetrafluorohydrazine may be prepared by the reaction of difluoramine with a heavy metal compound of the general form (M)p(N)q(X)r(H2O)s where M is a cation selected from Groups IV-VIII of the Periodic Table, this metal being able to exist in at least two valency states the higher state from +3 to +7 and the lower state from +1 to +3. The metal is in its higher valence state in the above formula.  N is ammonium or alkali metal cation.  X is an anion.  p is between 1 to 6.  q is between 0 to 3.  r is between 1 to 6.  s is between 0 to 20. Instead of starting with difluoramine it may be formed in situ by hydrolysis of unsymmetrical N,N-difluorourea.
Patent GB-298798-A (GB)
Title: Internal combustion engine
IPC: F01B9/06
Filed: 1927-11-24
Abstract: 298,798. Fairbrother, H., (Palmer Inventions, Inc.). Nov. 24, 1927. Pistons, cooling.-In an internal-combustion engine having a cam driving gear, the gudgeon 57 is carried in a sleeve, which has projections 55 to deflect air circulating in the piston on to the piston head.
Patent GB-353340-A (GB)
Title: Improvements in methods and devices for microscopically viewing living objects
IPC: G01N21/64
Filed: 1930-10-22
Abstract: 353,340. Microscopy. ZEISS, C., Carl- Zeiss-Strasse, Jena, Germany.-(Assignees of Ellinger, P. and Hirt, A. ; 47, Hauptstrasse, Heidelberg, Germany.) Oct. 22, 1930, No. 31706. Convention date, Oct. 29, 1929. [Class 97 (i).] To enable living objects to be examined through a microscope, fluorescent substances are injected into them and they are then illuminated and the fluorescence is received by the microscope objective. Preferably ultra-violet light is used for inciting fluorescence. The means for illuminating the prepared specimens L comprises an arc lamp A, lenses B, B<1>, B<11>, and a filter G<1> which transmits only ultra-violet rays. The rays passing through the lens B<11> are received by a prism J and directed downwardly through the microscope objective K. The fluorescence emitted by the specimen passes through the objective to the ocular M, a filter O being provided to cut off ultra-violet rays. To avoid desiccation of the specimen, a solution such as Ringer solution is supplied from a vessel T to the objective and thence to the specimen. The stage P is adjustable. in three directions at rightangles to each other. The substance injected into the specimen may be one such as fluorescin, combining only with the basic components of the cells, or one such as trypaflavine combining only with the acidic components.
Patent GB-336801-A (GB)
Title: Improvements in reversible ploughs
IPC: A01B3/20
Filed: 1929-10-18
Abstract: 336,801. Ransomes, Sims, & Jefferies, Ltd., Newson, A. T. H., and Rackham, A. G. H. Oct. 18, 1929. Turn-wrest and disc-tool implements; adjusting and lifting parts; reversing at headlands; seats; wheels, arrangement of.-A reversible plough for one or more furrows comprises a plough beam mounted at its ends in front and rear brackets supported on wheels and connected together by one or more upwardly arched stays in such a manner that the brackets are held in alignment and clearance is allowed to permit of the beam being turned to bring the plough discs or bodies into operative or neutral position, as required. Means are provided for automatically preventing the rear swivelling wheel from swivelling when the plough bodies are in the ground, for turning and fixing the beam, for regulating the ploughing angle of the bodies, and for moving the seat from one side of the implement to the other. Two discs 1 are shown mounted on arms 2 on the beam 4 which has front and rear axles or pivots 5, 6 secured respectively in bearing brackets 12, 15 by bolts and washers. Two upwardly extending. stays 21 are bolted to the rear brackets 15 and to shoes 19 on a yoke 17 on the front bracket 12. The beam 4 is turned bv means of the hand-lever 24 and toothed segments shown to bring the discs into neutral position or into operative position on either side of the implement. The lever 24 is secured in the neutral position by a pivoted fork 29. The ploughing angle of the discs is controlled by the engagement of projections 45 with adjustable stops 43. The front wheel axles 32 are carried by arms 33 on a shaft 34, the wheels being adjusted by rocking the shaft 34 by means of a screwed rod 35 engaging a nut on an arm on the shaft. The rod 35 is mounted in a pivoted sleeve bearing 38, endwise movement being prevented by collars 42. The stem or axle 47 of the rear swivel wheel 46 is mounted in a rocking arm 49 pivoted on the bracket 15. A tongue 55 on a casting 53 clamped on the steem 47 enters a slot in the bracket 15 when the plough is lowered into work, so as to prevent swivelling of the wheel. The plough is raised or lowered by rocking the arm 49 by means of a link 60 and a hand-lever 57 provided with a locking segment 67<1>. One or more springs 61 may be attached to the arm 49 and to the seat standard 62 to facilitate, lifting. The seat 68 is carried by an arm 67 adapted to be swung about its securing bolt from one side of the implement to the other, the movement being limited by stops. The underface of the seat is inclined and flanged to embrace the arm 67, so that the inclination of the seat may be changed by turning it through 180‹. In a two-furrow plough having ordinary plough bodies, two sets of bodies are carried by cross arms on the beam 4, so as to be brought into operation alternately.
Patent GB-520863-A (GB)
Title: Improvements in rheostats
IPC: H01C10/28
Filed: 1938-11-02
Abstract: 520,863. Regulating switches. MURPHY RADIO, Ltd., BRIE RESISTOR, Ltd., TRUSCOTT, D. N.,'and DYSON, A. A. Nov. 2, 1938, No. 31751. [Class 38 (v)] A rheostat such as a potentiometer for volume control in radio apparatus is built of parallel rods 3 of resistant composition set in a circle in an insulating base 1 and connected in series by push - on junction pieces 4 each of which joins the ends of two neighbouring rods together and to one of a ring of contact studs 9 over which a switch arm travels. The circular insulating base 1 of synthetic resin, ceramic material &c. with two concentric incomplete rings of holes through it may be moulded or built up from three or more laminations, the holes in the outer laminations being a push fit for the resistors while those in the other laminations may be larger as shown at 2, Fig. 6, or they may be notches in the edge of the laminations to increase heat dissipation. The resistors 3 are metal coated at their ends and may differ in composition so that they increase in specific resistance round the ring. The junction pieces 4 are stamped from nickel silver or other metal and are of triangular or trefoil shape. Three holes are punched in each piece, the edges of two of them being drawn out to form a collar 8 which is a push fit on the resistors 3. The switch contacts studs 9 are of nickel silver, the end 11 being hollow so that it may be spun over to form a rivet. The switch arm is a stamping of springy metal with three projecting tongues 18, 19, 21 of which the tongue 18 forms the switch brush engaging the contacts 9 and the other tongues are bent over to secure the switch arm to an insulating disc 16. The part of the switch arm opposite the brush 18 is bent down to bear upon a metal annulus 23 with a projecting tongue 24 to which a connecting tag is riveted. A tongue 25 of the disc 16 abuts'against a pin 26 to limit its rotation. A pressed metal cover may be provided for screening. The disc 16 may be formed of laminations. Connection to the switch arm may be made by a flexible connector instead of the ring 23. An " on and off " switch may be operated at each end of the travel of the switch arm.
Patent GB-748103-A (GB)
Title: Flexible pipe coupling
Inventor: MACKENZIE DOUGLAS
IPC: F02K1/80
Filed: 1953-11-16
Abstract: 748,103. Jet propulsion nozzles. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Nov. 15, 1954 [Nov. 16, 1953], No. 31765/53. Class 110(3) [Also in Group XXVIII] A flexible coupling, particularly for coupling a jet pipe to a jet propulsion engine, comprises a plurality of flexible overlapping heat-resistant plates 1a secured around one pipe 2, Fig. 3, with the free ends projecting as spring fingers to engage the second pipe 3 against which they are held by fluid pressure. The plates 1a are stitch-welded at 1b to the pipe 2 and are provided with an extension 1c along one edge which is bent to engage under the adjacent plate. In a modification, alternate plates are provided with extensions 1c along both edges to overlap the intermediate plates which have no extensions.
Patent GB-635795-A (GB)
Title: Improvements in and relating to fuel economisers for fire-grates
IPC: F23H13/00
Filed: 1947-12-03
Abstract: 635,795. Fuel-economizers. WOORE, T. Dec. 3, 1947, No. 31917. [Class 126] A fuel-economizer for domestic fire grates comprises a hollow metal or fire clay member of inverted "V " or truncated inverted " V " section adapted for placing on a fire grate thereby dividing the grate into two parts. As shown (Fig. 1) the hollow member comprises sloping side walls 3 with slots 4 formed therein and closed top 2 which slopes downwardly and forwardly from the rear. In addition, the width of the member decreases from back to front. The base of the member is fitted with a catch bar 6 capable of being inserted between the bars 7 proper of the grate so that on twisting the device into the position shown the catch bar bridges the undersides of adjacent fire bars 7. In a further embodiment (Fig. 5) the hollow member 1 consists of sides 3 with openings 4 formed as an inverted " V " made higher at the rear than at the front the top being closed by a covering plate 2. The bottom and rear of the fire bar is left open but the front is closed an aperture 8 being provided therein. The member is rigidly mounted upon positioning bars 9 and 10 formed of flat strip the front bars 9 being slotted at 11 for the reception of extension pieces if required. In a modification of this embodiment the rear bars 10 may be formed integral with the member the bottom of the member being completely or partially covered. The positioning bars may also be an integral member upon which the member is rigidly mounted.
Patent GB-995248-A (GB)
Title: Improvements in or relating to packing devices for rotary-piston internal combustionengines
IPC: F01C19/10
Filed: 1961-09-05
Abstract: 995,248. Rotary I.C. engines. REGIE NATIONALE DES USINES RENAULT. Sept. 5, 1961 [Sept. 20, 1960], No. 31919/61. Heading F1F. A rotary internal combustion engine comprises a five lobed stator 2 and a four lobed rotor 1 mounted eccentrically within the stator. Each lobe of the stator has a combustion chamber 4 containing valves 5, 6 and a spark plug 7. Sealing strips 8, which engage the periphery of the rotor, are fitted in grooves in the stator between adjacent lobes, and the end faces of the rotor are sealed by means of sealing strips in circular grooves 10 and in epicycloidal grooves 9 near the periphery of the rotor. The sealing strip at 9 may comprise a stack of strips 23 (Fig. 4a), which may be urged against the sides of the groove by a corrugated spring 25. A complementary strip 15, (Figs. 3 and 3b), is provided in each end cover 13 to abut each sealing strip 8 and to bear against the epicycloidal strip 9. These complementary strips may alternatively be cylindrical or may be fitted in a grooved member secured to the end cover 13.
Patent GB-485276-A (GB)
Title: Improvements in stockless anchors
IPC: B63B21/44
Filed: 1937-11-20
Abstract: 485,276. Anchors. BYERS & CO., Ltd., W. L., and CAMPBELL, J. D. Nov. 20, 1937, No. 32027. [Class 113 (i)] Stockless anchors having flat wings on the head spaced transversely from the flutes are, in addition, provided with wings at their rear ends terminating in outwardly extending tripping ridges, such ridges being of decreasing width towards the ends and roughly of shallow V-form in the longitudinal direction of the flutes. Pivoted to the shank 1 is a head 2, carrying on either side flutes 3. These extend to form outwardly disposed tripping ridges 5, which are of decreasing width outwardly, and also of shallow V-section terminating at point 6. The faces of these projections may be plane or concave. Specifications 116,602 and 290,111, [both in Class 113 (i)], are referred to.
Patent GB-733602-A (GB)
Title: Instrument for measuring surface tensions and viscosities
IPC: G01N13/02
Filed: 1953-11-19
Abstract: 733,602. Testing surface tension of liquids; viscosimeters. POCHAN, A. P. R. Nov. 19, 1963 [Nov. 21, 1952], No. 32146/53. Class 106(2). For measuring the surface tension of a liquid 14 held in a container 13, whose height is so adjusted by a screw 11 that the liquid just touches the conical end of a vertical graduated capillary tube 8, some of the liquid is drawn into the tube by a syringe 19 and then allowed to fall back into the container by removing a stopper 17, the product of the steady height of the liquid in the tube above the surface of the liquid in the container, the specific gravity of the liquid, and a "tube constant," determined experimentally with a liquid of known-properties, then giving the surface tension of the liquid under test. Interfacial surface tension, can also be determined, and by timing the flow of a liquid in the tube its viscosity can be determined.
Patent GB-300136-A (GB)
IPC: B07C5/04
Filed: 1928-11-05
Abstract: 300,136. Gemmer, J. Nov. 5, 1927, [Convention date]. Linear-dimension gauges.-In connection with the automatic measuring and stamping of ceramic tiles a series of discs is secured on a common shaft for the purpose of effecting the intermittent forward travel of the tiles, the contacting of measuring rollers with the tiles, the adjustment of a finger controlling the stamps, and the depressing of the stamp corresponding to the width of the tile. Three cam discs 3, 4, 5, together with a crank-disc 2, are mounted on a shaft 1, the crank-disc 2 being adapted to move intermittently the tile-carrying endless belt 6 through the medium of a ratchet wheel 9, pawl 11, arm 10 and connecting-rod 13. A series of stamps 15, carrying the different sizeindicating numbers, is pivotally mounted above the belt 6 and a member 16 is adapted to be adjusted over the stamp corresponding to the size of the tile. The member 16 is mounted on a sleeve 17 slidable on a shaft 18, and such sleeve is connected with a system of levers 19 - - 26. The lever 24 carries a T-shaped arm 31 provided with rollers 30, and the lever 26 carries a roller 27 contacting with the cam disc 3. When the roller 27 enters tha recess 55 in the cam disc the rollers 30 move into contact with the tile on the belt 6, and this movement causes the member 16 to take up its position above the appropriate stamp. The shaft 18 is given a partial rotation in order to cause the member 16 to depress a stamp 15 by means of a cam 5 through the medium of links 36, 37 and a rod 34. The stamp-operating member 16, which is resiliently mounted on the sleeve 17, may operate on the two-armed spring-mounted stamps 15 through the medium of a second group of two-armed levers 50. At the rear ends of the levers 50 a comb member 52 is provided, from the teeth of which the member 16 may slide so as to engage a lever 50. An inking pad 39 is provided on a sleeve 41 mounted on a shaft 40, which is preferably hollow for supplying ink or colour to the pad. The pad 39 is given a swinging movement towards the stamps 15 through a lever system 44, 45, 48 connected to the shaft 40 and operated by the cam 4. The link 43 is pivoted to a sleeve 35 on the rod 34 and is controlled by a spring 49.
Patent GB-827306-A (GB)
Title: A loud speaker device
Inventor: MURDOCH STANLEY JAMES
IPC: A47C7/72
Filed: 1956-10-23
Abstract: 827,306. Loud-speakers. HARRODS Ltd. Oct. 18, 1957 [Oct. 23, 1956], No. 32258/56. Class 40 (4). [Also in Group XIV] Two loud - speakers are mounted closely adjacent the head of a user so that other people shall not be unduly disturbed. They may be mounted in the wings of a wing-chair, Fig. 2, or in the wings of a box, Fig. 1, mounted on a stand, wall or trolley. Such a box may be adjustable for height. The device may be used as an acoustic booth in a gramophone record shop.
Patent GB-1457950-A (GB)
Title: Antibacterial compositions
Inventor: KAHAN FREDERICK M
IPC: C07D261/04
Filed: 1974-07-22
Abstract: 1457950 Antibacterial compositions MERCK & CO INC 22 July 1974 [10 Aug 1973 13 June 1974] 32360/74 Addition to 1421023 Heading A5B [Also in Division C2] Antibacterial compositions comprise as active ingredients a mixture of 3-fluoro-D-alanine, 2-deutero-3-fluoro-D-alanine, 2, 3-dideutero-3- fluoro-D-alanine, 2, 3, 3-trideutero-3-fluoro-D- alinine, a C 1-5 alkyl ester thereof or a pharmaceutically acceptable salt thereof, with a 3- fluoro-D-alanine. autoantagonist-inhibitor comprising an isoxazolidinone compound of formula in which R is hydrogen or methyl, and each of X, Y and Z is hydrogen or alkyl, or a pharmacologically acceptable salt thereof. The compositions may be administered orally or parenterally in the form of capsules, tablets, solutions or suspensions.
Patent GB-819718-A (GB)
Title: Synthetic resin adhesives and method of using same
Inventor: ROWLAND JAFFREY
IPC: C09J163/02
Filed: 1954-11-09
Abstract: An adhesive composition comprises a mixture of a liquid polyamide resin and a liquid epoxide resin, free from solvents which will evaporate away at room temperature and preferably solvent free. Specified epoxide resins are those made by condensing epichlorohydrin with a bis-phenol, e.g. 4,41-dihydroxy diphenyl dimethyl methane. Specified polyamide resins are those sold under the Registered Trade Marks "Versamid" and "Genamid."  Fillers, e.g. aluminium powder and/or slate dust may be incorporated in each resin prior to admixture.  The adhesives may be used for joining together or to one another metal, glass, wood and phenolic plastics.  The hardening of the adhesive is accelerated by heating at temperatures below 200 DEG C.
Patent GB-382775-A (GB)
Title: Improvements relating to the manufacture of sheets, board, slabs and the like from fibrous material
IPC: C04B28/30
Filed: 1931-11-23
Abstract: Calcined magnesite or hydrated magnesium oxide is mixed with fibrous material preferably in the beater of a paper or board machine, and the mixture after sheeting is impregnated with zinc chloride solution.  Boards may be built up from laminations, the impregnation being then applied to the laminated product.  A suitable mixture consists of 40 parts of asbestos, 33 of organic fibre, 25 of magnesite, and 2 of starch.
Patent GB-928579-A (GB)
Title: Paint brushes
IPC: A46B15/00
Filed: 1961-09-11
Abstract: 928,579. Brushes; handles. F. A. JOHNSON. Sept. 29, 1961 [Sept. 11, 1961], No. 32532/61. Classes 19 and 61. A paint brush comprises a handle for releasably holding thin flat brush elements in bunched together relationship. Each brush element 5 comprises a layer of bristles 6 bound together at their roots by bonding material, the bonded roots being housed in an end member 7. The member 7 comprises a metal strip folded along its centre and receiving within the fold the bonded roots of the layer of bristles. In a modification the end members are of synthetic resin moulded on to the bonded roots of the layers of bristles. The handle 2, Fig. 1, has a rectangular housing 1 into which the end members 7 are inserted and held by a screw 4 which is passed through a threaded hole 3 in the wall of the housing. In a modification, Fig. 3, a flat plate 8 having one or more screw-threaded apertures, extends into the handle. Screw locking heads 10 concentric with the apertures are secured to the plate 8. The brush elements 5 are formed with apertures that correspond with those in the plate 8. Screws 11 are passed through washers 12 and then through the apertures in the bristle layers and through the apertures 9. In another modification, Fig. 4 (not shown), the flat plate is secured to one side face of the handle 2 or the plate may be integral with the handle.
Patent GB-820547-A (GB)
Title: Sintered photoconducting layers
IPC: H01L31/08
Filed: 1955-11-16
Abstract: 820,547. Photo-electric cells. RADIO CORPORATION OF AMERICA. Nov. 16, 1955 [Dec. 3, 1954], No. 32841/55. Class 37. A method for producing a photoconductive layer comprises the step of forming a mixture including a substance from the group cadmium sulphide, selenide and sulphoselenide and a solvent therefor, adding to the mixture activator proportions of a material from the group silver and copper and of a material from the group chlorine, bromine and iodine, crystallizing the substance from the solvent, and removing all the solvent by heating to leave a continuous layer of interlocked sintered crystals. The solvent may consist of cadmium chloride, bromide, or iodide and ammonium chloride may be added to it to convert any oxide to chloride. In one example 100 grams of cadmium sulphide, 10 grams of cadmium chloride, 1.7 ml. of 0.1 molar solution of copper chloride and 500 ml. of water are mixed in a blender, the mixture sprayed or brushed on a borosilicate glass plate and the assembly fired at 600‹ C. in a restricted air supply. Mica, quartz, or ceramic may be used instead of borosilicate glass as a base. The copper chloride may alternatively be introduced into the mixture by volatilization during the firing. A photo-conductive cell may be completed by applying electrodes in the form of silver dispersed in a resin to the layer, or by silk screening and evaporating, spraying, or sputtering on, Al, Pt, Ag, Au electrodes. Alternatively electrodes, e.g. comprising interdigitating fingers 25, may be formed on the baseplate 23 before the layer 21 is applied, as by exposure of a heated glass base to the vapour of silicon, tin, or titanium chloride followed by treatment in a reducing atmosphere, or by application of stannic chloride dissolved in absolute alcohol and glacial acetic acid. Such a cell exhibits a panchromatic response and has a high speed of response.
Patent GB-535356-A (GB)
Title: Improvements in and relating to welding electrodes
IPC: B23K35/36
Filed: 1939-12-28
Abstract: 535,356. Arc welding electrodes. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 28, 1939. No. 32951. Convention date, Dec. 28, 1938. [Class 82 (ii)] [Also in Group XXII] An arc welding electrode is provided with a flux coating containing a water solution of a soluble alkali metal silicate as one of its principal ingredients, together with finely divided cellulosic material, preferably 2-3 per cent., and dextrine, preferably 1-2 per cent. The cellulosic material may be wood flour, alpha flock, or alpha cellulose. The flux may comprise: Rutile 43.50 per cent., uncalcined magnesite 4.83 per cent., feldspar 13.50 per cent., sodium silicate 25.05 per cent., ferro-manganese 8.68 per cent., cellulosic material 2.89 per cent., dextrine 1.55 per cent. The flux may be applied to a mild steel electrode.