baber/WOPTO huggingface dataset:
Patent GB-1035386-A (GB)
Title: Gear change mechanism
Inventor: WOOLER ANTHONY
IPC: F16H41/00
Filed: 1964-06-29
Abstract: 1,035,386. Change-speed control. ROLLSROYCE Ltd. June 22, 1965 [June 29, 1964], No. 26880/64. Heading F2D. In a rail vehicle transmission a gas turbine 10 is coupled to input and intermediate shafts 26, 34 by spur gearing 21 ... 25, shaft 34 being connected to an output shaft 96 driving the wheels 117 through bevel reversing gear 105 and spur reduction gear 114. 115. The arrangement provides three speeds: (1) Low-through gears 31, 32, one-way clutch 62, gears 61, 63; (2) Intermediate-by direct connection of shafts 26, 34 through a self-synchronous Leggetype clutch 35; (3) High-through gears 31, 32, a Legge clutch 65, gears 64, 70. Automatic upshift and downshift between intermediate and high gear ratios is controlled by a speed responsive valve 86 regulating the supply of liquid to an hydraulic coupling or slipping clutch 72, and also to actuators 94, 91 for the clutches 35, 65. With low ratio operative valve 86 operates at a predetermined speed to fill coupling 72 by a centrifugal pump 80, the slip first causing clutch 62 to over-run and then allowing actuator 94 to engage clutch 35 and establish direct drive through shafts 26, 34 during which coupling 72 is emptied. At the speed for engagement of high ratio valve 86 again operates to fill coupling 72, clutch 35 then disengaging and clutch 65 engaging to transmit drive through gears 64, 70. Downshift takes place in reverse manner. When the vehicle has been braked all the clutches are disengaged and the selection of lower gear can be made without operating coupling 72, and when intermediate or top gear hydraulic braking may be effected by locking the sleeve of clutch 35 and filling coupling 72.
Patent GB-1319075-A (GB)
Title: Cyanine and merocyanine dyes and photographic emulsions containing them
IPC: C09B23/04
Filed: 1970-06-04
Abstract: 1319075 Pyrrolidinium compounds EASTMAN KODAK CO 4 June 1970 [4 June 1969] 26976/70 Heading C2C [Also in Divisions C4 and G2] 1 - (2 - Norbornylidene)pyrrolidinium perchlorate is prepared by reacting 2-norbornanone and pyrrolidine hydroperchlorate. 1-(1-Indanylidene)-pyrrolidinium perchlorate is prepared by reacting 1-Indanone and pyrrolidine hydroperchlorate.
Patent GB-747198-A (GB)
Title: Improvements in or relating to electric semiconductor devices
Inventor: DRAKE CYRIL FRANCIS
IPC: G01R31/26
Filed: 1953-10-02
Abstract: 747,198. Semi-conductor devices. STANDARD TELEPHONES & CABLES, Ltd. Sept. 24, 1954 [Oct. 2, 1953], No. 27064/53. Class 37. A method of making an electrode system for a semi-conductor device comprises applying a pointed conductor to the surface of a semiconductor body and passing a forming current of predetermined duration and amplitude, whereby the immediate region of contact becomes a molten alloy predominantly conductive, surrounded by a hemispherical shell containing lattice disturbances frozen into the body by giving the forming current a sharp cut-off, the amplitude, duration and sense of the forming current, and the physical shape and chemical composition of the point electrode determining the volt-amp characteristic between the point electrode and a base electrode. As exemplified with an initially N-type semiconducting body 2 (Fig. 2), a pointed wire conductor 1 is applied to the surface under a predetermined pressure to produce a contact area 3, and the passage of the forming current produces a region 4 of molten alloy containing the material of the electrode 1 and semiconductor 2, surrounded by a region bounded by a hemispherical isothermal 6 in which the N-type conductivity has been changed to P- type, with minor changes occurring beyond the hemisphere 6 up to a hemisphere 5. If the wire 1 contains an N-type impurity this will diffuse through the molten zone 4 and into a shell 7 which will therefore have N-type conductivity. If the wire 1 contains a P-type impurity the shell 7 will consist of high conductivity P-type material. If the base semiconductor body 2 has P-type conductivity, the wire 1 must contain a N-.type impurity, and a single P-N junction at 7 is formed. The characteristics of the resulting semi-conductor device depend on the various physical quantities specified above, and also on the direction of the forming current, and can be made repeatable by forming the point on wire 1, cleaning the surfaces of the semi-conductor body 2, and adding a base electrode, by standard processes described in the Specification. Specifications 686,958, 706,514 and 708,899 are referred to.
Patent GB-219846-A (GB)
Title: Manufacture of a new azo-dyestuff
IPC: C09B45/16
Filed: 1923-10-29
Abstract: Diazotized 2-amino-1-pheno-4-sulpho-6-carboxylic acid is coupled with 1-(31-carboxyphenyl)-5-pyrazolone-3-carboxylic acid; the product yields fast red-orange tints when printed upon cotton with a chrome mordant.  1 - (31-Carboxyphenyl)-5-pyrazolone-3-carboxylic acid is obtained by reducing diazotized m-aminobenzoic acid to the hydrazine and condensing with oxalacetic ester.
Patent GB-755703-A (GB)
Title: Garden scythe
IPC: A01G1/12
Filed: 1954-09-18
Abstract: 755,703. Scythes. WHITEHEAD, H. S. Sept. 18, 1954, No. 27086/54. Class 6 (3). A cutting tool for grass weeds and the like comprises a flat metal strip 2, one end of which is permanently bent substantially semicircularly to form a rounded base 3, the end 3A of the bent portion being straight and extending tangentially to the curved portion of the strip. A wooden handle 1 is provided and the curved portion of the blade may be sharpened on one or both edges.
Patent GB-170576-A (GB)
Title: Improvements in targets
IPC: F41J1/00
Filed: 1921-10-12
Abstract: 170,576. Wang, K. Oct. 19, 1920, [Convention date]. Targets.-A target comprises a solid steel plate or series of connected discs 1, 2, 3, 4, having a bulls-eye 5 integral therewith or connected thereto and a separate light disc 6 perforable by the bullets and provided with a central hole 7 instead of a painted bulls-eye. The hole 7 may be made slightly smaller than the bulls-eye 5 and surrounded with a dark painted edge. The discs 1-5 may be adapted to swing, owing to the impact of the bullet, and may be connected with any automatic indicator.
Patent GB-503528-A (GB)
Title: Improvements in apparatus for the generation of gas-mixtures containing acetylene
IPC: C10L3/02
Filed: 1937-10-07
Abstract: 503,528. Carburetting acetylene. HAWORTH, J. Oct. 7, 1937, No. 27179. [Class 55 (ii)] [Also in Group IV] An apparatus for producing carburetted acetylene comprises an acetylene generator, a petrol vaporizing chamber disposed at its base enclosing a quantity of fibrous or porous material, means for supplying the chamber with petrol and means for diffusing acetylene through the chamber to produce a gas mixture of acetylene and vaporized petrol. The acetylene generator is of the kind in which the rising and falling of a water-sealed gas bell 4 controls a delivery valve 16 for calcium carbide 6. Below the inner and outer casings 1 and 2 of the apparatus and enclosing their base is a chamber 24 filled with fibrous or porous material, preferably steel wool. Centrally of this is a hollow pedestal 27 having inlets 28 communicating with the lower part of the inner casing 2 and outlets 29 leading to the chamber 24. The chamber is saturated with petrol through the cocks 31. Acetylene generated passes down the annulus, as indicated by the arrows, between the sludge bucket 18 and the inner casing 2, through the inlets 28 into the pedestal, through the outlets 29, becomes saturated with petrol and passes through the cock 34 to the mains.
Patent GB-848446-A (GB)
Title: Electrostatic precipitators
IPC: B03C3/38
Filed: 1956-09-06
Abstract: 848,446. Electrostatic precipitation. LUEDER, H. Sept. 6, 1956 [Sept. 6, 1955], No. 27370/56. Class 39(1). An electrostatic precipitator comprises a substantially smooth precipitator electrode 2 and a discharge electrode 1 having a plurality of points 5 directed towards and all at substantially the same distance from the electrode 2, the points 5 providing a corona discharge and each being provided with an individual high resistance in series with it which limits the current intensity of the ion stream flowing away from the point. The points 5 are on rod-like bodies 4 and in the construction shown in Fig. 2, the inner ends of the bodies 4 are embedded in a non-porous plastics layer 6, the portion of the layer in the immediate vicinity of the end of each body serving as a series resistance for the corresponding point 5. In the construction shown in Fig. 3, the bodies 4 are made of a non-porous plastics material, e.g. a plastic such as polyvinyl chloride, to serve as the series resistances, and are secured in direct contact with the electrode 1 by an insulating or poorly conducting adhesive layer 7. The electrodes 1 and 2 can be of planar, cylindrical, conical or other form. The spacing between the electrodes 1 and 2 need not be constant over their whole length, e.g. the part of the electrode 1 provided with points 5 could be spaced at a greater distance from the electrode 2 than in the adjoining smooth part of the electrode 1. The electrode 1 can be made by covering a plate with an adhesive layer, and establishing a strong electrostatic field over it to attract non-porous plastics filaments, all of the same length, from a pan, the filaments aligning themselves perpendicularly to the plate. The bodies 4 can be arranged in rows which extend across the electrode 1 substantially transversely to the direction of flow of the gas, the sum of the cross-sectional areas of all the bodies 4 can be less than one tenth of the whole electrode area provided with the bodies, and the spacing between the points of the bodies can be not greater than the length of the bodies to provide strong flow resistance to the gas. The spacing between the points can be less than 1 mm. and the distance between the points and the precipitator electrode 2 can be greater than 1 mm.
Patent GB-297687-A (GB)
Title: Manufacture of dyestuffs containing metal
IPC: C09B45/01
Filed: 1928-09-24
Abstract: 297,687. Soc. of Chemical Industry in Basle. Sept. 24, 1927, [Convention date]. Azo dyes, soluble metal compounds of.-Azo dyestuffs containing metal other than chromium are obtained by treating azo dyestuffs, containing one or more groups capable of combining with metal, or mixtures of such azo dyestuffs, with metal compounds resulting from reaction of a caustic alkali, an organic compound containing hydroxyl groups, and a hydroxide of the metal. Products containing more than one metal may be obtained by treating the parent dyestuff or dyestuff mixture with a mixture of the agents yielding metal, or with such agents in succession. The following examples are specified. (1) The dyestuff 5-nitro-2-aminophenol # 2-o-anisylamino-5-naphthol-7-sulphonic acid is boiled with dilute caustic potash containing the copper compound obtained by dissolving hydrated copper hydroxide in a mixture of potassium hydroxide, glycerol, and water; the product, which is precipitated on neutralizing the solution, gives on cotton from a neutral bath reddish blue dyeings fast to light. (2) The dyestuff 2- amino-1-naphthol-4 : 8-disulphonic acid # #- naphthol is boiled with a solution obtained by adding potassium hydroxide and glycetrol to a dilute solution of cobaltous chloride; the product, which is precipitated by neutralizing with acetic acid and salting out, gives on wool or silk from an acetic acid bath, fast red-violet dyeings. (3) - Cotton is dyed fast reddish blue in a boiling solution containing the copper compound azo dyestuff of Example 1, Glauber's salt, and common salt. (4) Wool is dyed fast red-violet in a boiling solution containing the cobalt compound azo dyestuff of Example 2 and acetic acid. (5) Ordinary or weighted silk is dyed fast red-violet in a solution heated to 80‹ C. containing the cobalt compound azo dyestuff of Example 2 and acetic acid. Specification 186,635, which describes a similar process for the preparation of the chromium compound azo dyestuffs, is referred to, and Specifications 297,003 and 297,331 are referred to in the Specification as open to inspection under Sect. 91 (3) (a).
Patent GB-282352-A (GB)
Title: Improvements relating to feed valve devices for fluid pressure braking apparatus
IPC: B60T15/04
Filed: 1927-10-15
Abstract: 282,352. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Dean, W. E.). Dec. 18, 1926, [Convention date]. Fluid-pressure.-The feed valve by which the train-pipe of fluid pressure braking apparatus is charged is arranged to be controlled directly by the pressure in the train-pipe instead of, as is usual, by that in the supply pipe leading from this valve to the driver's valve. The feed-valve comprises a diaphragm 12 subject on the one side to the adjustable pressure of a spring 13 which determines the pressure to be established in the train-pipe and on the other side to the pressure in a chamber 15 which is perinanently and directly connected to the train-pipe 3. A slide valve 11 connected to a loosely fitting piston 9 controls communication between the main reservoir 4 and the train-pipe 3 by way of passage 27, chamber 10 of the valve 11, the pipe 20 and the driver's valve 6. Normally the pressure in the chamber 8 of the piston 9 is equalized with that in the chamber 10 and the valve 11 is closed as shown by a spring 28. When the driver's valve 6 is in the running position shown pipes 3, 20 are connected by a cavity 24 and if the pressure in the train-pipe is below that for which the spring 13 is set, the diaphragm unseats a valve 17 by a pin 23, thus venting the chamber 8 to the pipe 20 and the train-pipe and thereby causing the slide-valve 11 to open communication between the main reservoir 4 and the train-pipe until the normal pressure is reached therein when the valves 17, 11 re-close. By connecting the diaphragm chamber 15 directly to the train-pipe the intermittent opening and closing of the feed valve which occurs when this chamber is connected to the pipe 20 is avoided and thus a more rapid increase in train-pipe pressure is obtained. When the train-pipe pressure is reduced to apply the brakes, the valve 17 will be opened but as the feed valve passage 25 is lapped the valve 11 is not operated. When the valve 17 is open a valve 14 provided on the pin 23 is seated and thus prevents leakage of air to the train-pipe past the valve 17 and chamber 15, which might cause release of the brakes.
Patent GB-842955-A (GB)
Title: Improvements in the manufacture of metal nuts and like parts
IPC: B21K1/64
Filed: 1958-08-27
Abstract: 842,955. Forging nuts; rolling. SCHOSTAL S. A. Aug. 27, 1958 [Sept. 13, 1957], No. 27475/58. Classes 83 (2) and 83 (4). A nut or the like is made by trueing the end faces and trimming to size a workpiece A 1 ; chamfering the upper end to form workpiece A 2 ; sinking the upper face and chamfering the lower end to form workpiece A 3 ; punching of the internal hole to form workpiece A 4 ; forming the side faces and internally chamfering the hole to form workpiece A 5 . A workpiece A cut from round or profile bar is conveyed successively to work stations I to VII by an intermittently rotating carrier 71, Fig. 3 (not shown), working in a space 4. At station I the workpiece is trimmed to size in a die 6 and compressed between punch 10 and ejector 7 for trueing the end faces. Die 6 may be shaped to form preliminary flats on the workpiece A 1 . At station II the upper end is chamfered by sleeve 23. At station III the upper face is indented by a punch 29 and the lower edge is chamfered by an ejector 31 whilst the workpiece is within die 28. At station IV the workpiece is pierced by a punch 37. At station V the side faces are rolled by tools 47, pivoted at 46, which move downwards with the workpiece; simultaneously, internal bevels are formed by a punch 40 and ejector 44 which has a bore 45 for receiving a pilot 41. At station VI the end faces and chamfers are trued by punches and dies 60-63 and any reference numbers or Trade Marks are marked on the blank and at station VII the nut blank is removed from the carrier by an ejector 70. The upper punches are actuated together by a moving platen 5 and the ejectors are actuated by ejector rods 9, 32, 58, 67.
Patent GB-1042861-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: WELLS WILLIAM NEIL
IPC: B60C15/04
Filed: 1962-07-18
Abstract: 1,042,861. Bead cores for pneumatic tyres. DUNLOP RUBBER CO. Ltd. June 25, 1963 [July 18, 1962], No. 27523/62. Heading B7C. A bead core 5 for a pneumatic tyre comprises a plurality of overlying spirally wound turns of high tensile steel strip, the cross-sectional profile of the strip being such that one turn nests within the next, whereby substantially no relative axial movement is possible between turns of the core. The profile of the strip is curved such that the radially inner surface of each turn is convex. In another embodiment (Fig. 3) the profile of the strip is curved such that the radially inner surface of each turn is concave. The bead core then further comprises a steel packing ring 10 having convex radially inner and outer surfaces which rests within the radially innermost turn of the strip. The turns of strip steel and the packing ring 10 may be coated with rubber or an epoxy resin.
Patent GB-216047-A (GB)
Title: Improvements in or relating to the mounting of saddles on velocipedes, motor cycles and the like
IPC: B62J1/02
Filed: 1923-11-02
Abstract: 216,047. Naamloose Vennootschap Union Rijwielfabriek voorheen Fa. B. J. van den Berg, and Baltus, P. Nov. 2, 1923. Saddle clips.-A device for preventing the tilting of a saddle after adjustment comprises a bolt 4 pivoted at one end between jaws 5<a> on a clip 5 secured to the arm of the saddle pillar 1 by a bolt 6, the other end of the bolt 4 being clamped by means of plates 7. 8 and nuts 9, 10 to the wire underframe or spring of the saddle. The bolt 4 may be pivoted to the clip 5 by the engagement of its hooked end with the bolt 6. When the inclination of the saddle is to be adjusted, the plates 7, 8 are rotated through an angle of 90‹ to disengage their ends from the underframe.
Patent GB-519584-A (GB)
Title: Improvements in automatic feed mechanism for use more particularly with machinery used in the manufacture of cartridge cases for small arms
IPC: B23Q7/12
Filed: 1938-09-23
Abstract: 519,584. Transferring blanks. TAYLOR & CHALLEN, Ltd., and CHALLEN, J. B. Sept. 23, 1938, No. 27719. [Class 83 (iii)] Blanks, such as those for cartridge cases are passed to a machine, such as one for turning the heads and reamering the mouths, by a channel in which the supply and discharge sections are out of line and are connected by a gauge chamber through which the case is pushed laterally only if correctly tapered. Cases automatically fed at 7 to a chamber 8 are pushed through a pipe gauge 8c by a feed bar 10 retracted by a reciprocating pin 15 engaging adjustable stud 14 and advanced by a spring 11. If the case is correctly tapered it passes the gauge and passes down the delivery channel 9, but if the case is incorrectly shaped the spring is not effective to feed the bar 10 a full stroke and the case is arrested. The bar 10 is then withdrawn by hand and an ejector 16 is operated manually to pass through an opening 8e and eject the case through the entry opening for the feed bar.
Patent GB-435000-A (GB)
Title: Apparatus for lining the interior walls of hollow bodies, such as tubes or the like
IPC: B28B19/00
Filed: 1934-09-27
Abstract: <PICT:0435000/III/1> Apparatus for lining internal walls of hollow bodies, such as a tube 1, with thermoplastic material such as bitumen, comprises an elongated open-top trough 4, heating means such as one or more gas burners 10, and a distributer in the form of a carrier 6 extending axially within the trough and having mounted rigidly and transversely thereon scraper blades 7 occupying substantially the entire cross-section, the distributer and trough being capable of relative axial movement to discharge the contents of the trough from one end thereof intermittently along the length of the hollow body.  The tube 1 may be rotated on rollers 2 and the carrier 6 and trough 4 mounted on a carriage 3 on rails 12.  In use the trough may be run into the tube and an eye 8 on the carrier engaged with a fixed retainer 9.  The trough is run out and so successively uncovers the spaces between the plates 7 and discharges the material along the tube.  Carrier rollers 11 may be provided for the trough and a counterweight 5 on the carriage. Instead of the distributer being stationary when the trough moves, they may both move in opposite directions or in the same direction at different speeds, or the trough may remain stationary and the distributer and hollow body move in the same or opposite directions.
Patent GB-1219625-A (GB)
Title: Air-drying coating compositions
Inventor: WYNSTRA JOHN
IPC: C08G18/42
Filed: 1968-06-11
Abstract: 1,219,625. Polyurethane prepolymer/vinyl coating compositions. UNION CARBIDE CORP. 11 June, 1968, No. 27782/68. Heading C3R. [Also in Division B2] A moisture-curing coating composition comprises (a) 90 to 60% by weight of an NCO- terminated reaction product of (1) an ester diol of the formula or a polyester derived therefrom by reaction with an organic dibasic acid, and (2) a diisocyanate; and (b) 10 to 40% by weight of a normally solid copolymer of vinyl chloride and a vinyl ester containing at least 80% by weight based on the weight of copolymer of vinyl chloride copolymerized therein. The preferred M.W. of reaction product (a) is 1000 to 5000 and when it is prepared from a polyester and diisocyanate, the polyester is preferably based on an aromatic or alicyclic dibasic acid. Suitable copolymers (b) are vinyl chloride/vinyl acetate copolymers. In examples, product (a) is prepared from tolylene diisocyanate and (i) the ester diol, (ii) a polyester derived from the ester diol and isophthalic acid and (iii) a polyester derived from the ester diol and phthalic acid and are mixed with a vinyl chloride/vinyl acetate (87/13) copolymer in a mixed solvent. The mixtures are coated on to steel and wood panels and left to cure at ambient temperature and humidity.
Patent GB-1527535-A (GB)
Title: Tunnel drive shields
IPC: E21D9/06
Filed: 1976-07-05
Abstract: 1527535 Tunnelling shields GEWERKSCHAFT EISENHUTTE WESTFALIA 5 July 1976 [5 July 1975] 27827/76 Heading E1F A tunnelling shield for driving a tunnel, trench or other excavation through loose ground or non-self supporting rock, includes a face support device comprising two or more receptacles 26a, 26b arranged one above the other and open at least on the side intended to be directed towards the face. The face support device is mounted on a support frame 11, and the shield further comprises sharp ended planks 10 which are each connected to the support frame 11 by a double-acting hydraulic ram 12. Preferably the receptacles 26a, 26b are open-backed, the rear openings being provided with removable planks 30 held in place by wedges 31, so that the receptacles can be emptied one at a time. As shown, the receptacles are arranged in separately adjustable tiers 13, 14, 15, each tier including a support having a portion 16', running in guides. Each support is controlled by two rams 19 (only one shown in Fig. 1) whose longitudinal position relative to the support frame 11 can be adjusted by means of pins 23. The lowest receptacle is preferably spaced from the floor of the working to allow location of a cutter-loader 35. The receptacles are of sufficient depth, in a direction normal to the face, so that material falling into them forms piles which stop short of the rear ends of the cavities. Means may be provided for emptying the receptacles continuously if desired.