baber/WOPTO huggingface dataset:
Patent GB-787503-A (GB)
Title: Improved railway turntable
Inventor: BOYD JOHN
IPC: B61J1/04
Filed: 1952-07-05
Abstract: 787,503. Railway turntables. BOYD & CO., (ENGINEERS), Ltd., J. Dec. 28, 1953 [July 5, 1952], No. 16965/52. Class 104 (2). A railway turntable comprises a pair of parallel spaced girders 4 forming a structure which swings about a central vertical pivot 3 and is supported on each side at each end by bogies 8 adjustable about a vertical axis on their pivoting spigots 25, 27 and with their wheel axles extending radially with respect to the pivot 3 the bogies being arranged beneath wings 10 secured on and extending on each side of each end of the girders 4. Adjustable rods 29, 30 hold the bogies 8 in the radial position whilst permitting movement of the bogie 8 about a horizontal pin 24. The girders 4 are of constant depth throughout and are spaced to the required track gauge. The two pairs of wings 10 joined by a bracket 11 supporting the bogie vertical-andhorizontal pivoting block at each side and end of the girders 4 are connected to the girders 4 which have intervening cross beams 12, 13 aligned with the wings 10. The lower beam 13 is associated with tie bolts 14 to resist the sideways tension stresses and the upper beam 12 resists the sideways compressive stresses to which the girders 4 are subjected by the wings 10.
Patent GB-593732-A (GB)
Title: Improvements in or relating to governors
IPC: G05D13/00
Filed: 1942-11-30
Abstract: 593,732. Lid fastenings. KALIN, A. Nov. 30, 1942, No. 17015. Convention date, Nov. 27, 1941. [Class 44] [Also in Groups XXVI and XXIX] A fastening for the cover 5 of the speeder case of a hydraulic relay speed governor (see Groups XXVI and XXIX) comprises a bar 50 of which the ends can engage under ribs on the walls of the case, the bar being carried on the threaded portion of a spindle 46 carried by the operating knob 45. The spindle also has a square portion carrying a metal disk 55 and a bow spring 54. To release the cover, knob 45 is turned until the ends of the bar no longer clamp against the ribs and the frictional contact between disc 55 and the bar will then swing the bar round until it contacts a stop 53.
Patent GB-396209-A (GB)
Title: Improvements in padlocks
IPC: E05B67/02
Filed: 1932-06-16
Abstract: 396,209. Padlocks. DEAN, A. H. and TRUBSHAW, E., (trading as WEST END LOCK CO.), 56, New Road, Willenhall, Staffordshire. June 16, 1932, No. 17031. [Class 44.] The rim of a padlock is formed by a strip A stamped out with lateral tongues a, the strip being then bent to required form and the tongues passed through apertures b in the front and back plates and then riveted. Preferably the torques are of approximately square section and are riveted by a snap tool forming a rounded head.
Patent GB-576239-A (GB)
Title: Improvements in and relating to carburettors for internal combustion engines
IPC: F02M1/04
Filed: 1944-09-06
Abstract: 576,239. Spray carburetters. SOLEX, Ltd., and PRAT, L. Sept. 6, 1944, No. 17064. [Class 7 (iii)] Relates to the type of auxiliary starting carburetter in which fuel is supplied, preferably from a U-shaped well 15, through passages 18, 14 to a mixing chamber 12 provided with a calibrated air inlet 13 and communicating with the induction pipe on the engine side of the throttle 8 through a passage 11. The fuel passage 14 and the mixture outlet 11 are controlled by a piston 21, having a chamfered front end, which is actuated by a bimetallic coil 22 enclosed in a chamber 24. Air, heated by the exhaust manifold 10, is drawn by the suction in the induction pipe transmitted through a passage 34, through a conduit 30, into the chamber 24 and directed on to the coil 22 by a baffle 37. According to the invention, to augment the suction in the chamber 24 when the passage 11 is open, and to enable cool air to be drawn from the inlet 13 into the chamber 24 to prevent overheating of the coil 22 when the passage 11 is closed, a passage 38 is provided between the chambers 12, 24. These chambers may be integral and formed from a non-conducting thermosetting plastic material to prevent cooling of the chamber 24 by vaporisation of the fuel in the chamber 12. The spindle 25 to which one end of the coil 24 is secured may be adjusted either from a position adjacent the carburetter or from the dashboard. As shown in Fig. 3, this is effected by rotating a stem 42 which screws into a block 41 carried by a lever 40 fixed to the spindle 25. The stem 42 carries a pin 47 which is held in one of a number of recesses 46 in a bracket 43 by a spring 45. Specification 418,887 is referred to in the Provisional Specification.
Patent GB-458112-A (GB)
Title: Improvements in and relating to engraving and cutting tools and means of actuating the same
IPC: B44B3/06
Filed: 1935-06-13
Abstract: 458,112. Engraving. DALTON, J. W., 17, The Crescent, Belmont, Surrey, and DAILY MIRROR NEWSPAPERS, Ltd., Geraldine House, Fetter Lane, London. June 13, 1935, No. 17107. [Class 100 (ii)] In a rotary cutter, particularly for producing engraved. surfaces, of the kind having a rotor consisting of vanes or blades driven by jets of air, two or more sets of vanes or blades are provided, and the jets are directed towards opposite ends of the axis of rotation. The jets may be arranged to bias axially the rotor, thrust thereon being thereby counteracted. In the apparatus shown in the Figure, a cutter 2 is carried by a hollow spindle 24 provided with a rotor 3 consisting of two sets of cupped blades 4 surrounded by a housing 12 which is formed with inclined passages 8 for directing opposite jets of air on to the blades. The jets may be arranged to bias the spindle axially. The spindle has a closed end 25 resting on a pivot 16 supported by a spring 20 which is mounted at the end of a member 21 for moving the cutter axially. The rotor and spindle are connected by a key 27 which passes through slots 28, 29 and is secured by a nut 30. To facilitate extraction of the cutter, a rod 32, mounted in the spindle, abuts on the key, and the slots 28, 29 are so arranged that the spindle can be moved axially to cause the cutter to abut on the rod. The housing is provided with a lubricating-passage 13 and a passage 14 for exhausting the cuttings. The pivot 16 is provided with a lubricating-passage 17. The feed movements of the cutter may be controlled by the apparatus described in Specification 389,102. In a modification, the cutter is formed at the top of a spindle which passes through the rotor and is provided at the bottom with a bearing.
Patent GB-647057-A (GB)
Title: Improvements in or relating to well drilling hydraulic rotary swivels
IPC: E21B21/02
Filed: 1947-07-01
Abstract: 647,057. Pipe joints. NATIONAL SUPPLY EXPORT CORPORATION, and OIL WELL ENGINEERING CO., Ltd. July 1, 1947, No. 17347. Convention date June 2, 1941. [Class 99(i)] In a well drilling hydraulic rotary swivel comprising a connection for the supply of drilling liquid from a stationary source into a washpipe 10 and thence through a rotary spindle 4 to a rotary drill pipe, the washpipe is rotatably connected to the spindle 4 and is encircled by a stationary member 7 with one or more annular resilient packing rings 25, 26, 27 each having a lateral extending lip portion 39 and a substantially axial extending rim portion 38, therebetween and means which are associated with the member 7 compresses the rim portions to secure the rings to the member 7 whilst the lip portions contact the member 10 to form a rotary seal between said members 7, 10. As shown, the washpipe 10 is secured to the spindle 4 by a collar 13 which has a flange 11 and a plurality of screws 22 adapted to bear on opposite sides of a ledge 14 which is integral with the washpipe. Spacers 28, 29, 30, 31 are disposed between the sealing rings; the bottom spacer 28 resting on a nut 35 which is threaded on the member 7 to effect contraction of the sealing rings. The spacers are formed with a wall 40, Fig. 3, to encircle the rim 38 and a trough 41 to receive the sealing ring, whilst its under surface 42 is shaped as shown to facilitate wedging of the ring between the surfaces 41, 42. A grease nipple 32 extends through the spacer 29 and the member 7. In a modification, Fig. 4 (not shown), a skirt integral with the member 7 extends within the washpipe thereby providing an additional grease chamber between said members. In another modification, Fig. 5, a housing 16a for the rings is bolted to the member 7 and a spacer 31a disposed therein has an inwardly extending flange 51 and a depending annular skirt 52 which extends within the washpipe 10a to form a grease chamber 53 in communication with the grease chamber 56 between the washpipe and the spacer. Specification 545,166, [Group XXI], is referred to.
Patent GB-818923-A (GB)
Title: Improvements in and relating to insoles and innersole foundations for shoes and the like
IPC: A43B13/38
Filed: 1956-06-05
Abstract: 818,923. Insoles. MIDGLEY, N. H., and DOWNEY, E. J. June 5, 1956 [June 10. 1955], No. 17376/56. Class 17(2) An insole is formed from a sheet comprising a layer 3 of rigid material and a thinner layer 2 of flexible material joined to it by adhesive. An insole blank cut from the sheet is skived to reduce the thickness of the toe part of the layer 3 to less than the thickness of the layer 2, to remove the layer 3 over the forepart between the lines 4, 5, while the heel seat 7 and the central part 6 of the waist are left at full thickness. The waist is reduced in thickness towards its edges and the line 5. For some shoe constructions a preformed securing rib may be attached to the insole and where discontinuous shoe uppers such as straps are used a resilient edging 17 may be provided, covered if desired by a binding 18, in order to allow for the thickness of the straps without letting the straps into the insole itself. Specification 818,924 is referred to.
Patent GB-129188-A (GB)
Title: Improvements in or relating to Moulds for Building Blocks and the like.
Inventor: LILLINGTON GEORGE
IPC: B28B7/18
Filed: 1918-10-25
Abstract: 129,188. Lillington, G. Oct. 25, 1918. Moulds.-A mould for cavity blocks comprises a base a, hinged sides a<1>, a<2>, and ends c held in place by projections c<1>, c<2>, engaging holes a<3>, a<4> in the sides and secured by wedges c<3> passing through the projections c<1>. The cavities are formed by hollow tapered cores d fitting into apertures b<1> in a false bottom b. In use, the mould is assembled as shown and filled with cement, and after setting, the wedges c<3> are removed and the mould opened, leaving the block upon the plate b. The cores d are then knocked through the apertures b and the block is removed from the plate. Fig. 9 shows a modification for producing angle blocks in which the base a is formed with an extension a<x>, hinged sides a<1>, a<7>, and in which the side a<2> is not hinged and carries a hinged portion a<5>. The sides a<1>, a<2> are furnished with a number of holes a<3>, a<4> to vary the size of the block. Fig. 11 shows a further modification, for producing blocks for door and window frames, in which one end c is replaced by a Z-shaped member c'.
Patent GB-808441-A (GB)
Title: Improvements in or relating to the preparation of tetrafluoroethylene
IPC: B01J19/08
Filed: 1956-06-06
Abstract: Tetrafluoroethylene is produced by pyrolysing an inorganic or organic fluorine compound at over 1700 DEG  C. and passing the gaseous product into contact with excess of fluidized carbon kept at below 500 DEG  C., to quench rapidly, and separating the tetrafluoroethylene.  Carbon may be present during the pyrolysis. Designs of plant in which a rotating carbon arc or an electrically heated graphite tube are used for the pyrolysis, also the fluidized carbon chamber, are shown in drawings.  In examples the results obtained from pyrolysed phosphorus pentafluoride, carbon tetrafluoride, sulphur hexafluoride and arsenic trifluoride, all with rotating carbon arc, or sulphur hexafluoride using graphite furnace, are compared with the method with no rapid quenching and with fluidized sand quench.  Specification 808,442 is referred to.
Patent GB-627223-A (GB)
Title: Improved slipring for admitting compressed air to chucks for lathes and like machine tools
IPC: B23B31/30
Filed: 1946-06-12
Abstract: 627,223. Chucks. SKODA WORKS, PLZEN. June 12, 1946, No. 17553. Convention date, Aug. 2, 1943. [Class 83 (iii)] [Also in Group XXVIII] The bearing-surface of a slip-ring 4 for admitting compressed air into a cylinder 2 of a chuck for a lathe &c. is of conical shape, the apex angle of the cone being of such a size as to preclude the risk of self-clamping. The slipring 4 slides on a rotating conical sleeve 3 fast on the cylinder shaft 1 and is carried on a yoke pivoted to the machine frame at 13. Air enters via a pipe 5 and also operates a piston 6 which presses the slip-ring over the sleeve to limit the escape of air. A non-return valve 17 ensures that air exhausts out only between the ring and the sleeve, thus serving to carry lubricant to the parts in contact.
Patent GB-572574-A (GB)
Title: Improvements in and relating to rubber derivatives
IPC: C08C19/20
Filed: 1940-12-16
Abstract: Rubber is reacted upon with sulphur dioxide to form products varying from elastic substances to brittle resinous products. The rubber may be first purified by treatment with acetone and solution in petrol ether.  The reaction may be carried out in a solvent such as benzene and in presence of a catalyst such as nitrate of lithium or other alkali metal or of aniline. Unsaturated compounds such as undecrylenic acid, allyl chloride, styrene or methacrylonitrile may be mixed with the rubber before the reaction.  Oxidized derivatives of rubber may be treated.  The products may be softened by treatment with cyclohexanone morpholine, cyclohexylamine or piperidine, and plasticizers, fillers, pigments, &c. may be admixed.
Patent GB-697910-A (GB)
Title: Improvements relating to optical lenses
IPC: G02B9/12
Filed: 1950-07-15
Abstract: 697,910. Optical objectives. WRAY (OPTICAL WORKS), Ltd., and WYNNE, C. G. Oct. 10, 1951 [July 15, 1950], No. 17754/50. Class 97 (i). An objective comprises a simple divergent component located between a simple rear convergent component and a front convergent component formed of a converted doublet, alone or followed by a single element, the radius of curvature of the front surface of the objective being less than twothirds of that of either of the surfaces of the rear component so that the power of the front component is considerably increased in comparison with that possible in a lens of the same focal length and consisting of three simple components. The front doublet may be a meniscus convex to the front and having a front convergent element of refractive index greater than or equal to that of the rear component. Numerical data are given for one example of the objective shown and for one example in which the element Al is omitted.
Patent GB-196518-A (GB)
Title: Process for the manufacture of radioactive plastic compositions from cellon, celluloid and the like
IPC: G21G4/04
Filed: 1922-06-28
Abstract: Radioactive plastic masses intended for therapeutic and other purposes are made by incorporating radioactive materials into cellon, celluloid and similar plastic substances during the course of their manufacture.  The products can be moulded to any desired shape.
Patent GB-1506797-A (GB)
Title: Multi-purpose container
IPC: B65D8/08
Filed: 1976-05-03
Abstract: 1506797 Sliding container lids K ELSASSER 3 May 1976 [3 May 1975] 17936/76 Heading B8P A deep drawn container 1 has an injection moulded frame 3 secured to a top flange 2 of the container and a lid 5 slides into a groove bounded by the upper surface of the flange and a recess 3b in the frame. The lid, which may carry advertizing matter, can be easily changed as required according to the particular contents.
Patent GB-797436-A (GB)
Title: Improvements in or relating to braking arrangements for electric motors
Inventor: FRIEDLANDER ERICH SIEGFRIED
IPC: B66B1/32
Filed: 1955-06-21
Abstract: 797,436. Combined mechanical and electrical brakes. GENERAL ELECTRIC CO., Ltd. June 7, 1956 [June 21, 1955], No. 17983/55. Class 103 (1). In a braking arrangement for an electric motor suitable for mine winding apparatus having electrical and mechanical braking means, means is provided for limiting the total braking effort during simultaneous electrical and mechanical braking to a predetermined maximum value. A resistance an induction regulator or a variable tapping transformer may be gradually inserted into the electrical braking circuit by movement in the braking direction of the mechanical brake lever to control the maximum possible electrical braking effort in dependence upon the position of the mechanical brake lever.
Patent GB-506879-A (GB)
Title: A method of manufacturing ceramic and/or refractory articles
IPC: C04B33/13
Filed: 1938-06-17
Abstract: 506,879. Refractory and ceramic compositions. SANNO, JUN., A. P. DE. June 17, 1938, No. 18063. [Classes 22 and 70] Ceramic or refractory materials are mixed with an aqueous solution of a protective colloid, then incorporated with sufficient rubber latex to serve as a temporary binder, the mix is formed into articles and fired to burn out the latex. The ceramic material may, for example be a mixture of clay, flint, or felspar, and the refractory material may be sillimanite, carborundum, corundum, fused silica, graphite or " Alundum " (Registered Trade Mark) together with sufficient clay to form by fusion a permanent binder for the article. The protective colloid may be glue, casein, gelatine soap or a sulphonated benzene or naphthalene derivative. The latex may be raw or vulcanized, natural or synthetic.Specification 242,345, [Cass 70] is referred to.
Patent GB-499962-A (GB)
Title: Improvements in road traffic control systems
IPC: G08G1/09
Filed: 1937-06-29
Abstract: 499,962. Road signals for controlling traffic. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd., and HERWALD, N. June 29, 1937, No. 18067. [Class 118 (ii)] In a vehicle-actuated system, particularly for use at a tee intersection in which the main road is considered as two roads, actuation of the pad in one road effects a demand for right of way in that road and in the opposite road, while actuation of the device in this second road effects a demand for right of way on this road only, whereby its traffic may turn across the traffic passing from the first road to the second. The modifications necessary to convert a three-phase controller of the type described in Specification 427,832 are described. Specification 471,608 also is referred to. Reference has been directed by the Comptroller to Specification 418,070.
Patent GB-1414552-A (GB)
Title: Method for aligning level devices
IPC: G01C9/06
Filed: 1973-06-26
Abstract: 1414552 Bubble sensors NORTH AMERICAN ROCKWELL CORP 26 June 1973 [26 June 1972] 18079/75 Divided out of 1414551 Heading G1N A bubble level sensor 10, Fig.1, comprises a cylindrical container 20 with a central electrode Z in the base, and a cap 30 which supports two pairs of diametrically opposite, curved electrodes X1, X2 and Yl, Y2. The container 20 is filled with an electrolytic liquid 22, Fig.2, through a hole 25 in electrode Z, leaving a bubble 27 which is centralized by adjustment of the cap 30. The differential impedance from electrode Z to electrodes X1, X2 and Yl, Y2 measure the tilt about Y and X axes. The electrolytic liquid, comprising an alcohol containing a volatile ionizable acid, base or salt, is claimed in the parent Specification 1414551.
Patent GB-810535-A (GB)
Title: Resolution of n-acyl-dl-tryptophans
IPC: C07D209/20
Filed: 1957-06-06
Abstract: The invention comprises (1) optically active D- and L-lysine salts of D- and L-N-acyl-tryptophans, and (2) the resolution of a mixture of D- and L-N-acyltryptophans by reacting said mixture with D- or L-lysine and fractionally crystallizing the resulting lysine N-acyl-tryptophan salts.  The process is preferably applied to the resolution of N-formyl-, N-acetyl- and N-propionyltryptophans, and particularly to racemic forms thereof. The reaction may be conducted in water or an aqueous solvent and the fractional crystallization may be effected in a solvent or solvent mixture in which the lysine N-acyl-tryptophan salts have different solubilities, preferably a mixture of water and a water-miscible organic solvent such as methanol, ethanol or acetone; a mixture of methanol and water in which the proportions of methanol to water is from 3.5-4.5:1 respectively by volume being specified for such purpose.  The temperature during fractional crystallization may range from 10 DEG C. to the boiling point of the solvent and is preferably 40 DEG  C. or above.  The D- or L-lysine and the optically active N-acyl-tryptophans may be recovered from the corresponding lysine N-acyl-tryptophan salts by passing solutions thereof through a cation exchange resin in its H+ or NH4+ form, such resin preferably being a sulphonated copolymer of styrene and divinylbenzene.  The recovered lysine may be recycled to the resolution process and the N-acyl-D-tryptophan obtained may be racemized and similarly recycled. The N-acyl-L-tryptophan obtained may be hydrolysed to L-tryptophan by treatment with dilute mineral acid, the resulting hydrolysate being passed through a weakly basic anion exchange resin and the L-tryptophan recovered from the resin effluent.  Optically active tryptophan may also be obtained by direct hydrolysis of the optically resolved lysine N-acyl-tryptophan salts with acid or alkali.  The examples describe the preparation of L - lysine - N - acetyl - L-tryptophanate and the hemihydrate thereof, N - acetyl - L - tryptophan and L - tryptophan.  Reference has been directed by the Comptroller to Specification 745,097.
Patent GB-256765-A (GB)
Title: Improvements in or relating to the preparation of vegetable food
IPC: A23L2/02
Filed: 1925-07-15
Abstract: 256,765. Miles, E. H., and Reilly, G. July 15, 1925. Vegetable preparations.-An alimentary vegetable preparation is made by separating the juices of dietetic and curative vegetable substances, e.g. lettuces, onions, beans, cabbages, linseed, and treating the residue with dilute mineral acid or vegetable acid material for the recovery of further fluid, similarly separating the juices of preservative vegetables, e.g. carrots or parsnips, and treating the residue with acid or acid material for the recovery of further fluid, mixing the two fluid portions so obtained, heating the mixture at a relatively low temperature to hydrolize the sucrose and then concentrating preferably in vacuo. Essential oils distilling over during the concentration may be added to the final product. In some cases the dietetic and preservative vegetables may be mixed at the commencement of the process and the mixture of fluids is then obtained directly. The vegetable acid material used is the acid juice of a vegetable such as the tomato. Instead of using the juice as first obtained, whether of curative, preservative, or acid vegetables, this juice may be heated, for example, to dryness, at a low temperature and then lixiviated to give a fluid portion and a residue or coagulum. Curative vegetable material, whole or sliced, may be added to the mixed fluid portions before hydro. lization and concentration. Some vegetables should be soaked or heated bv water or steam before extracting the juice. The Provisional Specification refers to the vegetable material being in some instances in the form of a pulp.