baber/WOPTO huggingface dataset:
Patent GB-221806-A (GB)
Title: Improvements in brush shifting alternating current motors
IPC: H02K23/18
Filed: 1924-09-09
Abstract: 221,806. British Thomson-Houston Co., Ltd., (Assignees of Hull, J. I.). Sept. 10, 1923, [Convention date]. Alternating-current commutator machines; motors, controlling. - In motors of the brushshifting type, for example as described in Specification 25358/11, the brush-shifting mechanism is designed to effect power-factor improvement at all operating speeds. In the construction shown, the sets of brushes 14, 15 are carried by rotatable annular yokes 28, 29 gearing with a pair of wheels A, B so connected that a selected pair of points on them are maintained in all positions at a definite horizontal distance apart. The connection shown comprises a block 16 mounted in bearings 18, 19 so as to be slidable horizontally between the wheels, and provided with vertical slots 20, 21 in which are engaged pins 22, 23 projecting from the wheels. For finer regulation the slots may be of calculated curvature or otherwise vary from vertical and parallel relationship, or the block may have an additional rocking movement &c. The described relationship between the wheels A, B may be obtained by linkmotions &c. Specification 147,821 also is referred to.
Patent GB-286975-A (GB)
Title: Improvements relating to attachment or clamping devices for collision bumpers or luggage carriers for motor vehicles
IPC: B60R19/28
Filed: 1927-08-13
Abstract: 286,975. Ashby & Sons, Ltd., F., and Ashby, F. Aug. 13, 1927. Collision-guards; luggage racks. - In a hinge-fitting for adjustably securing bumper bars or luggage grids to a motor-vehicle chassis and of the kind comprising two relatively rotatable parts having co-operating teeth or engaging portions clamped together and to the chassis by a bolt, one or both of the parts are formed by pressing or stamping up from a sheet metal blank or blanks. In the construction shown the invention is applied to securing a bumper bar 30 to the vehicle chassis. One of the parts 1, Figs. 1 and 6, is formed as a cupshaped member having a base 1 and a deep cylindrical wall or flange 6 which is cut away at one side leaving a smaller flange 7 adapted to bear against the side face of the angled chassis member 5. For strengthening purposes a cylindrical ring 9 having a small gap 11, Fig. 7, is inserted in the base of the cup and retained by indentations 10 formed in the wall 6, the faces of the ring 9 and flange 7 being partially roughened or serrated to give a better grip on the angle member 5. The other part 2 is also cup-shaped, having a cylindrical flange 15 of small depth cut away at opposite sides to receive the supporting side-arms 16 of the bumper, and is strengthened by a loose sheet metal disc 19 having stamped up portions 20 which form a channel to receive the side-arms 16. The adjacent faces of the parts 1, 2 are provided with radial teeth or serrations 13, 14, and the parts are clamped together by a bolt 3 fitted at one end with a nut 18 and at the other end with a head 4 shaped to grip the lower side of the angle member 5.
Patent GB-299933-A (GB)
Title: Improvements in or relating to reels for fishing rods and the like
IPC: A01K89/033
Filed: 1927-08-15
Abstract: 299,933. Henry, L. Mitchell-. Aug. 15,1927. Clutches, ratchet.-A reel for a fishing rod is driven through a clutch which is brought into action by the initial rotational movement of the handle. Motion of the handle in the reverse direction brings a brake into operation. A friction surface s, Fig. 5, is mounted on a block q slidingly pivoted upon a freely mounted disc g and pivoted to a disc c intergral with the handle. Anti-clockwise rotation of the disc c moves the block q to compress springs u and so to apply the friction surface s with pressure upon the inner surface of a flange 11 of the reel. The same movement of the disc c presses the end of the rod w on to the flange 11 and after a little slipping the rod w enters one of the holes 12 and the drive becomes positive. A second friction surface may be substituted for the rod w and instead of the pivotal connection with tue disc c the connection may be by gear teeth or by engagement with rectangular notches in the disc c. The spring z on the rod w returns the device to neutral position when the handle is released. Brake shoes 13 are similarly applied by reverse movement of the handle. The action depends upon the tendency of the disc g to lag behind the disc c and this is produced by a pair of comtinnously operating brakes m, Fig. 4, the pressure of which is varied by means of cams o operable by knurled heads on the outside of the reel casing e. Silent or other ratchet detent devices or an element like the rod w may be provided to render the disc g unidirectional.
Patent GB-1084993-A (GB)
Title: Improvements in or relating to industrial ventilation
Inventor: SYKES WALTER JOHN
IPC: F24F13/10
Filed: 1963-05-29
Abstract: 1,084,993. Ball joints. W. J. SYKES and J. L. KELLY. May 29, 1964 [May 29, 1963], No. 21424/63. Heading E2F. [Also in Division F4] The lower lip 12 of the outer plastic casing 11 of an air nozzle is formed to provide a bearing surface for a hollow plastics partspherical ball 13 which is held in position by an annular ring 15 itself held by friction, adhesive, or screws.
Patent GB-373010-A (GB)
Title: Improvements in steam turbines
IPC: F01D15/10
Filed: 1931-07-27
Abstract: 373,010. Turbines. FAIRWEATHER, H. G. C., 65, Chancery Lane, London.- (Allmanna Svenska Elektriska Aktiebolaget ; Võsteras, Sweden.) July 27, 1931, No. 21445. [Class 110 (iii).] A turbine plant comprises a main turbine 8 of the radial flow type, for the L.P. stage, and an axial flow H.P. turbine 3 which contains a disc 17 keyed to a shaft 9. Steam pressure difference on the disc causes a thrust on the shaft 9 towards the main turbine and balances the thrust on the disc 18. Two electric generators 7 and a dynamo 21 are driven by the turbines. The turbine 3 may be of the impulse type, reaction type, or a combination of both, and may be connected to the shaft 9 by bevel gearing which transmits the end thrust from the disc 17. Steam from the H.P. turbine flows through a pipe 10 to branches 11, 12, to the centres of turbine discs 18, 23. One branch only may lead to the centre, the other leading to an annular chamber. Annular chambers 13, 14 surround the central space to which steam is admitted through overload valves such as 15, 16 leading to space 13. The end disc 5 of the H.P. turbine may be used in place of the disc 17, but packing elements must be provided on its right-hand side to co-operate with elements on the end wall 19. Several discs 17 may be used. Further auxiliary turbines may be built in the casing of the main turbine, one on each side. A second H.P. turbine 3 may be used in place of the dynamo 21.
Patent GB-517146-A (GB)
Title: Improvements in manufacture of articles from light metal alloys by extrusion
IPC: B21C25/02
Filed: 1938-07-19
Abstract: 517,146. Squirting. SINGER, F. July 19, 1938, No. 21474. [Class 83 (iv)] Working at specified tem peratures.-In a method of extruding age - hardenable aluminium alloys and other light metal alloys, relatively high extrusion speeds o from one to several inches per second are employed and the formation of cracks and other defects in the finished article due to excessive heating caused by the rapid extrusion is prevented bycontrolling' the temperatures of the billet and the tools before the commencement of the extrusion operation. If the tools, such as the piercing mandrel and punch are practically cold, a small billet is employed and a small degree of deformation is required, the billet may be at a temperature of 380‹C. but with larger billets and greater degrees of deformation the billet temperature may have to be reduced to 300‹ C. and the tools also cooled. A die suitable for these alloys has a billet supporting surface b forming an angle of from 45 degrees to 7,0 degrees with the axis and a cylindrical throat d connected to the face b by a conical partition c.
Patent GB-532536-A (GB)
Title: Improvements in or relating to double doors for dark rooms and other purposes
IPC: G03D17/00
Filed: 1939-07-24
Abstract: 532,536. Doors. BROWN, E. G., and BROWN & CO., Ltd., E. G. July 24, 1939, No. 21497. [Class 20 (iii)] [Also in Groups XX, XVII and xxv] A transfer chamber, e.g. for passing photographic films into a dark room or documents &c. into a bank safe, or serving as an antechamber for admission of persons to a room, having inlet and outlet doors and a locking device associated with each, said locking devices being operatively connected so that when either is locked the other is unlocked, is characterized in that the locking means comprises a shaft extending from door to door and carrying an external handle and two locking members which are caused respectively to engage with the doors by rotation of the shaft in one direction or the other. As shown, the ,chamber is supported at its flanged end 18 in an aperture in the wall of a dark room (not shown) and has an inlet door 20 hinged at 24 and an outlet door hinged at 43. Light-tight provision includes a rubber ring 26 for the door 20, an upturned flange 44 surrounding the door 22, and quadrantal side plates such as 38 on each door, which plates have stops limiting the opening movement. Each of these plates at one side of the chamber has a slot such as 46 registering when the door is closed with a slot such as 50 in the wall of the chamber, and these registered slots are adapted to receive a radial locking arm such as 60 on a shaft 58 mounted on the outside of the chamber. The locking arms for the two doors are set at an angle to each other so that when one is in locking position the other is disengaged. The shaft and slots are enclosed in a light-tight casing 64 on the side of the chamber, the shaft projecting therefrom at either end to receive an operating handle 66. In the case of an antechamber, the hinges 24, 43 are disposed vertically.
Patent GB-441631-A (GB)
Title: Improvements in and relating to facing point lock stretcher bars for railway switch mechanism
IPC: B61L5/02
Filed: 1934-07-23
Abstract: 441,631. Stretcher bars for railway switch mechanism. WILLIAMS, L. WYNN-, Haughton Bridge Works, Darlington. July 23, 1934, No. 21559. [Class 104 (i)] In a facing point look stretcher bar 1, the portion 7 which receives the facing point lock is formed relatively thick and the adjacent portions relatively thin to increase the flexibility of the bar. The ends of the bar are connected to point rails by means of distance pieces so that a bar of uniform gauge may be used for point rails of various gauges. Specification 403,919 is referred to.
Patent GB-734524-A (GB)
Title: Improvements in or relating to metal foil for electrolytic condensers
IPC: H01G9/045
Filed: 1952-08-28
Abstract: A metal foil for electrolytic capacitors having a suface roughened by electrolytic corrosion, consists of high-purity aluminium containing up to 0.03 per cent of a metal other than beryllium or tantalu, which forms microscopic independent crystal types more noble than aluminium in the material, while avoiding the formatiion of mixed crystals, so that it accelerates the corroison process by providing a depolarizing action.  Preferably the foil includes at least 0.001 per cent of nickel or platinum, but gold, cobalt, tungsten, nolybdenum, chromium and zirconium may also be used.  Alternating current may be used for electrolytic corrision in an acid bath.
Patent GB-410077-A (GB)
Title: Improvements in or relating to manufacture of concrete pipes
IPC: B28B21/42
Filed: 1932-08-02
Abstract: A quick setting cement has a basis of magnesium oxychloride, zinc oxychloride or any other like compound, and is preferably mixed with plaster, carbonate of soda and fluosilicate of alumina, and if desired, a waterproofing agent.
Patent GB-597717-A (GB)
Title: Compositions suitable for use as gas and power producing liquids
IPC: C06B31/30
Filed: 1945-08-24
Abstract: Liquid power-producing compositions for use in I.C. engines, reaction or jet propelled devices, in explosives &c. comprise mixtures of ammonium nitrate and urea together with one or more compounds which ensure that the compositions are liquid at atmospheric temperature ranges.  The added compounds comprise inorganic salts and organic materials which depress the fusion point of ammonium nitrate, are of low molecular weight and freely soluble in the fused mixtures, are not highly associated in ammonium nitrate solution and do not form insoluble salts by decomposition with ammonium nitrate or by co-ordination with urea to such an extent to reduce the desired reduction in fusion point of the mixtures.  Suitable compounds specified comprise the ammonium salts-sulphamate, thiosulphate, formate, acetate, thiocyanate, hypophosphite, and acetamide, propionamide, anhydrous sodium acetate, and methylamine nitrate, used singly or together.  The ration of ammonium nitrate to urea in the compositions is preferably between 50 to 30 and 50 to 25, i.e., in excess of the normal eutectic ratio of 53 to 47, in order to keep the O2 value of the mixtures nearer "balance," the added compounds being chosen such that they dissolve the excess ammonium nitrate.
Patent GB-404743-A (GB)
Title: Improvements in or relating to machines for printing and moistening strips of adhesive paper and the like
IPC: B41K3/60
Filed: 1932-08-03
Abstract: 404,743. Rotary printing-machines. CROWLEY, H. F., 324, Gray's Inn Road, London. Aug. 3, 1932, No. 21796. [Class 100 (ii).] In a machine for printing and moistening a strip of adhesive material, in which the strip is drawn from a supply roll 23 between a rotary printing couple and over a moistening device 33, the printing-cylinder 1 is mounted in pivoted arms 3 and is inked by a roller 8 mounted in arms 9 pivoted to the arms 3. The rollers 1, 8 are maintained in operative position by springs 6, 10 or counterweights acting upon the arms 3, 9 and are mounted in open slots in the arms, the roller 8 being retained in its arms by hooks 11 pivoted on the roller shaft and engaging pins 12 on the arms. The roller 8 receives ink from a wick extending from a trough 18 into the inkreservoir 13. This reservoir is removably held by spring catches 16 on a plate which may be resilient and fixed to the machine frame, or, as shown, may be pivoted on the pivots of the arms 3 and held raised by springs 7 or counterweights. The printed tape passes between guide plates 25, 26 and thence between the plate 25 and the up-turned edge of a plate 27 having a bent part 27' forming a spring. The plate 25 may be raised against the action of springs 31 to facilitate threading of the strip. After moistening the strip may be severed against a fixed knife 35. The roll 23 is carried by side plates 37 adjustable for rolls of different width.
Patent GB-1182753-A (GB)
Title: Centrifugal Separator
Inventor: NILSON CARL GORAN
IPC: B04B1/20
Filed: 1968-05-08
Abstract: 1,182,753. Centrifugal separators. ALFALAVAL AB. 8 May, 1968 [9 May, 1967], No. 21859/68. Heading B2P. The sludge discharge screw conveyor 2 and the rotor 1 of a centrifuge for treating sludgecontaining liquid define between them at least two side-by-side helically extending channels 12, 13, the channel 12 communicating with an inlet 10 for sludge-containing liquid and the channel 13 communicating with a sludge-free liquid outlet 7, and the channels being connected with each other in such a manner that liquid flows from the inlet 10 to the outlet 7 in succession through the channels while undergoing separation. As shown a number of outlets 7 is provided in a wall 6 at one end of the rotor, the sludge being discharged by the screw conveyor through outlets in an opposite end wall. A portion of the screw conveyor helical member may be formed with a radially outwardly opening U-profile. In the conical section 5 of the rotor, the leading leg of the U-profile, seen in the feed direction of the conveyor screw gradually diminishes and is faded out completely at the portion of the rotor wall situated radially inwardly with respect to the liquid surface formed within the rotor. The liquid to be centrifuged is supplied through a fixed pipe 10 which communicates with a pipe 11 rotatable with the conveyor screw 2 and opening into the channel 12. In modifications (a) instead of having a profiled thread as shown, the screw conveyor may be double-threaded, the helical threads defining with the rotor two side-by-side interconnecting channels; (b) three or more intercommunicating channels may be defined by the screw conveyor and the rotor; (c) one or more of the channels may be longitudinally divided into two or more passages by means of one or more helically extending partitions with the or each channel; (d) the channels may have different cross-sections. The connection between the different channels may be by means of perforations through the screw conveyor threads or by the omission of the threads at suitable places; the channel communicating with the rotor inlet may be closed at one end to ensure liquid flow in the right direction.
Patent GB-517332-A (GB)
Title: Improvement in olefine oxidation and catalyst therefor
IPC: C07D301/10
Filed: 1938-07-23
Abstract: 517,332. Preparation of catalysts; olefine oxides. CARBIDE & CARBON CHEMICALS CORPORATION. July 23, 1938, No. 21872. Convention date, Aug. 7, 1937. [Class 1 (i)] [Also in Group IV] Silver catalysts, which are particularly suitable for the direct oxidation of olefines to olefine oxides at temperatures of 150‹-400‹C., are activated by treating with ozone and water vapour to form silver peroxide and then treating the catalyst to alter chemically the peroxide formed, e.g., by reduction with hydrogen or by treatment with a solution of barium, strontium or lithium hydroxides. In general, finelydivided silver-having a roughened surface is more readily activated than forms having a polished surface. Preferably, silver is deposited on granular inert material such as artificial silica filter stone, sandstone or an alumina refractory material, either chemically or mechanically from suspensions of finely divided metallic silver or silver oxide. The ozonisation takes place at temperatures from 20‹-250‹C., a smooth surface requiring a higher temperature. Reduction is effected at temperatures from 100‹-250‹C., preferably at about 150‹C. In the treatment with ozone, equipment made of iron, copper or ordinary steel should be avoided, and as silver peroxide accelerates the decomposition of ozone, liquid water should be added to the reaction vessel at such a rate as to provide a coating of liquid water for the peroxide as it is formed, but not for the unreacted silver. According to examples (1) a catalyst of silver wire packed in a glass tube was treated with oxygen saturated with water vapour and containing 1 per cent. of ozone, reduced with hydrogen at 150‹C., treated with ozone again and finally reduced. It was used for the oxidation of ethylene with air at 185‹C. (2) A catalyst consisting of porous silica stone coated with silver was placed in a stainless steel tube, treated with ozone as above and then treated with an aqueous solution of barium hydroxide octahydrate at 90‹C. It was used for the oxidation of ethylene at 290‹C. (3) A catalyst made by the evaporation of an aqueous suspension of silver powder and porous silica stone was repeatedly ozonised, reduced (first at 250‹C. and subsequently at 150‹C.) and finally treated in ozonised condition with barium hydroxide solution as in example 2. The material was tested for the production of ethylene oxide between the activating treatments. The yield increased with successive activities, and the catalyst was inactive in the ozonised condition. Specification 517,333 is referred to.
Patent GB-336653-A (GB)
Title: Improvements in or relating to bottle filling, bottle sealing and disc cutting apparatus or the like
IPC: B67C7/00
Filed: 1929-07-16
Abstract: 336,653. Sturtevant, S. H. July 16, 1929. Ratchet and like step-by-step conveyers.-In a machine for filling bottles &c. the bottles are moved from the filling to the sealing positions by a reciprocating platform 29 which is raised and lowered through a fixed platform 27. One or more rows of bottles are automatically moved at intervals along the fixed platform by the interposed reciprocating platform and are elevated at the filling and sealing positions by grid members 100, 141 operated by cams 104, 143. In order to accommodate bottles of various heights the relative height of the frame 22 to the frame 1 can be adjusted through the medium of a screw 192, a worm 193, and a handwheel. The bottles are first positioned on a travelling band 43 and passed through a shutter mechanism, and means are provided for positioning the bottles on the fixed platform. The shutter mechanism is operated from the main drive shaft. The shutter mechanism comprises a series of semi-circular shutter members 53, each of which receives a bottle from the band 43. The shutters are arranged to turn through 180‹ at a given time and pass single bottles. An arm 63 shaped to engage the lower ends of the bottles and controlled by cam plates 75 transfers the line of bottles from the band 43 to the fixed platform 27. The reciprocating platform 29 comprises longitudinal grid members connected together by transverse bolts fitted with rollers 78 which operate in slots in quadrants 79 fulcrummed on carriers 81 which are slidably mounted on the machine. Detents 94 and 95 engage the frame of the machine and the quadrant 79 and limit the motion of the platform 29. Longitudinal guides 98 are provided for the bottles. The upper ends of the grid members 100 are cut away at 105 and receive and position the base of each bottle. The height of the travelling band is adjustable in relation to the fixed platform.