baber/WOPTO huggingface dataset:
Patent GB-986525-A (GB)
Title: Disc brakes
IPC: F16D55/14
Filed: 1962-01-12
Abstract: 986,525. Disc brakes. LAMBERT BRAKE CORPORATION. Jan. 12, 1962 [Jan. 23, 1961], No. 1260/62. Heading F2E. A disc brake comprises a housing 12, 14, Fig. 3, providing friction surfaces 18, 20, friction discs 22, 24 engageable with the friction surfaces and relatively rotatable with respect to the housing, a pair of actuating discs 32, 34, means, e.g. balls 38 in inclined seats for axially shifting the discs to urge the friction discs 22, 24 against the surfaces 18, 20 when the actuating discs are rotated relatively to each other, and actuating means for relatively rotating the discs 32, 34. The actuating means include a pair of radially extending opposed ears 46, 48, Fig. 4, on each disc 32, 34, each ear having a generally radially extending and elongated seat 52, 56, a shiftable actuating element 50 and a pair of balls 60, 62, each engaging a seat for transmitting forces between the element 50 and the ears during operation of the brake, the seats 52, 56 being oppositely inclined relatively to a plane between the discs for maintaining the balls substantially centred with respect to the plane during relative movement of the discs 32, 34. As shown, each of the discs 22, 24 comprise a central metal disc 26 having annular bodies 28, 30 of friction material secured to its opposite sides and is splined to the shaft 16. The actuating discs 32, 34 are normally retained in the retracted position by springs 36 and are prevented from rotating by lugs thereon engaging a torque pin 72. The actuating element 50 is formed with oppositely inclined seats 54, 58 up which the balls 60, 62 will ride on outward radial movement of the element 50 to rotate the actuating discs 32, 34. In another embodiment, Fig. 9, the actuating element is in the form of a cage 50a in which are partially received the balls 60a, 62a. A pin 88 engages both balls so as to maintain the member 50a centred with respect to the balls. In a modification there is only a single friction disc and friction surface on one side of the actuating discs.
Patent GB-578526-A (GB)
Title: Improvements in fluid-sealing and dust-excluding devices for shafts, bearings and the like
IPC: F16J15/32
Filed: 1944-01-24
Abstract: 578,526. Stuffing-boxes. ANGUS & CO., Ltd., G., and CHINNERY, R. H. Jan. 24, 1944, No. 1283. [Class 122 (v)] The length and conicity of the sealing portion b of an oil seal press-fitted on a relatively stationary part are such as not to extend the radial thickness of the seal to double that of the - holding portion a excluding any abutment flange f<1>. The holding portion may be reinforced or made of another material. The seating flange and the holding portion do not overlap axially.
Patent GB-794092-A (GB)
Title: Improvements in or relating to perforating apparatus for printing telegraphy
Inventor: HANDLEY JOHN
IPC: H04L17/08
Filed: 1955-01-15
Abstract: 794,092. Selective perforating machines. CREED & CO., Ltd. Jan. 13, 1956 [Jan. 15, 1955], No. 1287/55. Class 31 (2). [Also in Group XL (b)] In apparatus for perforating tape according to a printing telegraph code and in which interponents are positioned between a punching hammer and punch members under control of members mechanically set by a keyboard, the interponents each have one edge located in a groove and a push-rod is provided for selectively rocking each of the interponents in its groove against the action of a spring, and punching means is provided for moving all said punch interponents so that selected interponents operate corresponding punching members and unselected interponents move up alongside their corresponding punch members. The perforator apparatus described is associated with the teleprinter described in Specification 794,091 [Group XL (b)], which is referred to, in which two groups of five plates 39 ... 48 are alternatively and selectively set by keyboard operation. Pivoted selector plates 83...87 are lifted towards the end of a received combination, and by means of the depending fingers 88 ... 92 are selectively set by the positioning of the respective group of five plates, any selector plate 83 ... 87 being retained in its raised position if its associated finger 88 ... 92 engages the raised portion of its associated plate 39. The plates 83 ... 87 carry extensions 29 engaging pushbars 18 ... 22 linked to upper parts of interponents 10, 11, 13, 14, 15 which at their lower. ends can rock in grooves in a block forming part of a cradle 16. When a plate 83 ... 87 is in its upper position the associated interponent 10, 11, 13, 14, 15 is held in a vertical position so that upon the upward movement of the cradle 16, the vertically held interponents engage the associated punch pins 1 ... 5, guided in plates 7, 8 to pass through the dieplate 9 and perforate the tape. The interponents which are set in an inclined position slide past their associated punch pins. An inturned lip 54 on the wall 31 of the cradle 16 withdraws those punch pins 1 .. 5 which have been operated and the interponent 12 which is associated with the feed perforation pin 6 permanently held in the vertical position by a pin 30 engaging a vertical slot in the wall 31. The reciprocation of the punch cradle 16 is effected by a lever 33 connected through a wedging ball clutch 61 to the extension of a bifurcated member 64 engaging a square block eccentrically mounted on a rotatable shaft 53. The clutch can be disabled to cut out the operation of the perforator. A link 36 eccentrically connected to the lever 33 operates the tapefeed ratchet 37 which is held by a jockey roller 69 engaging a toothed disc on the shaft 38 of the tape sprocket. A further ratchet 70 on the shaft 38 is rotated by a pawl operated from a back-spacing key, which elements are not shown.
Patent GB-725661-A (GB)
Title: Improvements relating to electric batteries
Inventor: BACON FRANCIS THOMAS
IPC: F16J1/24
Filed: 1953-01-16
Abstract: 725,661. Batteries. BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION. Jan. 1, 1954 [Jan. 16, 1953], No. 1365/53. Class 53. [Also in Group XXII] Porous nickel electrodes for primary cells are protected against corrosion by coating them with nickel oxide containing lithium. The electrodes of the cell described in Specification 667,298 may be so treated and in one method of making such electrodes coarse nickel powder is placed in a mould and sintered at 1350 C. in hydrogen or a mixture of hydrogen and nitrogen. The sintered metal is then covered by spraying with a suspension of fine nickel powder in water, alcohol, acetone, benzene, ether or other liquid. Nickel powder may be rubbed on to this layer to seal any leaks. The electrode is again sintered at 1000 C. and finally immersed in a solution of lithium hydroxide, carbonate or other compound of lithium, dried, and oxidized by heating in air or a mixture of steam and air. In another method the large pore side of the electrode is made from finely powdered nickel mixed with ammonium carbonate, the mixture being compressed and sintered at 1150 C. The fine pore layer of nickel is sprayed on and the electrode dipped in a solution of nickel hydroxide, dried, and oxidized as in the previous example. Other examples are given in the Specification using nickel powders of various grades.
Patent GB-552535-A (GB)
Title: Improvements in protecting tiles for electric cables and the like
IPC: H02G9/02
Filed: 1942-02-02
Abstract: 552,535. Covering blocks for underground cables. CABLE COVERS, Ltd., and DRYSDALE, J. Feb. 2, 1942, No. 1389. [Class 87 (i)] A protective tile for covering underground electric cables comprises an outer part 1 with ridged top 2 and a dovetailed groove 4 on the under side, and an inner part 3 of trapezoidal section adapted to slide in the groove 4 leaving the base of the tile flush. In assembling a line of tiles, the outer and inner parts break joint with each other, as shown in Fig. 4, so that the tiles are all interlocked.
Patent GB-486217-A (GB)
Title: Improvements in electric fuse elements
IPC: H01H85/06
Filed: 1937-01-18
Abstract: 486,217. Fusible cut-outs ; couplings. LENK, H., and GRUNWALD. E. Jan. 18, 1937, No. 1461. [Class 38 (i)] [Also in Group XXII] A connection between a fuse wire of magnesium or its alloys and a copper or like conductor is effected by using magnesium to contact with the similar metal and copper &c. to contact with the conductor, the junction between the magnesium and copper &c. being of a character to exclude air produced, e.g. by rolling, welding, or a coating process. Air may be excluded from the junction by a coating of paint or varnish. The attachment of copper contacts to a fuse of magnesium is shown in Figs. 7b, 8b wherein the fuse wire 1 is gripped between plates 13 of magnesium coated with copper 14. A coating 12 of paint or varnish seals the ends of the bimetallic junction and may also seal the junction laterally, Fig. 7b, or an extension of the copper coating may form the seal. The fuse wire may be completely or partially coated with silver or copper and a central coated portion may carry a bead of readily fusible solder. End caps 6, Fig. 5, of magnesium enclosed in copper 7 may be applied to the fuse 1. An intermediate layer of aluminium, zinc, cadmium, or iron may be applied between the magnesium &c. and the copper.
Patent GB-819527-A (GB)
Title: Improvements in or relating to invalid chairs
IPC: A61G5/04
Filed: 1956-01-17
Abstract: 819,527. Electrically propelled vehicles; motor forecarriages. SLATER, J. A. Jan. 15, 1957 [Jan. 17, 1956], No. 1496/56. Class 79(3) [Also in Groups XXXII and XXXVII] An invalid chair comprises a seatcarrying upright framework, a pair of non-driven spaced wheels 9 supported in the base of the framework at or near to the rearward edge thereof, a single driven wheel 8 supported centrally of the forward region of the framework this wheel being adaped to be rotated by steering means 17, 18 at least through substantially a semicircle, and a front wheel electric driving motor 11 mounted immediately adjacent the wheel 8 in such a manner as to partake in the steering movements thereof, the steering means comprising an upright column 17 adapted to present electrical switch means for controlling operation of the motor. As shown, the motor 11 is connected through a reduction gear box 12, a chain 14 and sprockets 13, 15 to the wheel 8, and is mounted in a housing 7 having an upwardly extending stub 6 rotatably mounted by means of ball races 16 in a collar 5 secured to a transverse tube 3 of the chair framework. The stub 6 is connected by a pin and slot 21 with the steering column 17. An electrical plug 19b within the stub 6 is adapted to engage a socket (not shown) in the column 17 to permit control of the motor 11 by a rotatable portion 18a of the steering' means 18. The portion 18a operates a rotary switch controlling relays 24 (see Group XXXVII) providing reverse and slow and fast forward drive to the wheel 8. Co-operating stop means (not shown) on the stub 6 and collar 5 prevent rotation of the column 17 through more than 190 degrees. Alternatively the housing 7 and driving wheel 8 may be made rotatable through 360 degrees. Storage batteries 22 are mounted on a tray 23 extending between the rear wheels 9.
Patent GB-304214-A (GB)
Title: Improved process for producing a bate or drench for skins
IPC: C14C1/08
Filed: 1929-01-16
Abstract: 304,214. I. G. Farbenindustrie Akt.- Ges. Jan. 16, 1928, [Convention date]. Bacteria, cultivating.-A drench for treating hides &c. is prepared by causing bacteria, particularly of the mesenteric group, to act on an albuminous and fatty substance, a drenching liquor being then made from the enzymic degradation products. Defibrinated blood alone or with the addition of a small amount of animal fat is inoculated with a bacillus of the mesenteric group and kept at a temperature between 25‹ and 45‹ C. When the presence of a maximum of proteolytic and lipolytic ferments can be proved the liquor is freed from suspended matter and bacteria by centrifuging or deposition and is suitable for drenching skins. Refuse from meat and fish is also suitable as a nutrient medium. A dry product may be obtained by drying the liquid on kieselguhr, animal charcoal, sawdust, &c., or on a suitable salt. Specifications 21720/95 and 12549/98. [both in Class 76, Leather], are referred to.
Patent GB-659311-A (GB)
Title: Variable indexing mechanism
IPC: B23Q16/02
Filed: 1949-01-19
Abstract: 659,311. Dividing-engines. KIRKHAM, H. Jan. 19, 1949, No. 1558. [Class 97 (iii)] [Also in Group XXII] An indexing mechanism comprises a movable selector sleeve 4 for controlling the engagement by a plunger 3 with slots or holes in an index plate 1, and a series of rings of dimples on the sleeve with the spacing of the dimples in each ring arranged to correspond with a particular number of index positions per revolution of the index plate, the dimples of any selected ring being engaged in turn by a ball 9 and such engagement being adapted to allow the movement of a bar 6 whereby the plunger 3 engages the desired slot or hole in the plate 1. The sleeve 4 is splined for slidable movement on the spindle 2 of the plate 1 so as to position the selected ring of dimples for co-operation with the ball 9. This ball, and a second ball 10, are disposed in a bush 8 to co-operate with the bar 6 which, as shown in Fig. 1, is slidably mounted and connected by a double-armed lever 11 with the plunger 3. The end of the bar 6 has a grooved portion which, when the bar is moved against a spring 7 to release the plunger 3, permits disengagement of the ball 9. Upon rotation of the plate 1, the spring 7 urges the bar so that the ball 9 snaps into the next dimple, and the plunger 3 engages the corresponding slot in the plate. The arrangement of slots is sufficient to cover the various sets of indexing positions required, each ring of dimples determines a different set of such positions, and the spacing of the dimples in the rings is in definite relationship with the spacing of the slots. In a modification, Figs. 6 and 7 (not shown), instead of connecting the bar 6 to the plunger, the end of the bar itself constitutes a plunger engaging holes in the plate 1. The operating bar 13 shown in Fig. 4 is rotatably mounted and carries a grooved collar 14 co-operating with the balls and a slotted lever 15 for operating the plunger 16; the bar is returned to its original position by a spring 18. In the construction shown in Fig. 5, the operating bar is in the form of a spring-pressed pivoted lever 20 which is connected to the plunger 22 and carries a pad 26 for operating the balls 24, 25. The Provisional Specification describes also the operation of the sleeve by fixing a rack thereon for engagement by a pinion.
Patent GB-645429-A (GB)
Title: Improvements in and relating to methods for the production of sulphanilic acid amidecompounds
IPC: C07D239/69
Filed: 1948-01-19
Abstract: Sulphanilamido-pyrimidine derivatives of the general formula <FORM:0645429/IV (b)/1> (in which X is an aliphatic radical of 1 to 3 carbon atoms, Me is a alkali or alkaline earth metal and R is a pyrimidine residue), are prepared by reacting, in an alkaline medium, a sulphanilamido-pyrimidine with a bisulphite compound of an aliphatic monoaldehyde of 2 to 4 carbon atoms.  The bisulphite compound of the aldehyde may be formed in situ.  Suitable alkalies are ammonia and organic amines such as ethanolamine, ethylenediamine and dimethylamine.  In examples: (1) 2-(p-amino - benzensulphonamido) - pyrimidine dissolved in dilute ammonia is added to acetaldehyde bisulphite solution and evaporated to dryness; (2) 2-(p-aminobenzenesulphonamido)-4,6-dimethyl-pyrimidine dissolved in aqueous ethanolamine is added to a solution of acetaldehyde bisulphite and evaporated in vacuo; (3) 2 - (p - aminobenzenesulphonamido) - 4,6 - dimethyl - pyrimidine dissolved in aqueous ethylenediamine is added to acetaldehyde bisulphite and evaporated in vacuo; and (4) 2-(p-aminobenzenesulphonamido) - 4,6 - dimethyl-pyrimidine dissolved in aqueous dimethylamine is added to acetaldehyde bisulphite and evaporated in vacuo.  The residue in each case may be dissolved in water and the solution neutralized and used directly.  Other aldehydes specified are propionaldehyde, butyraldehyde and crotonaldehyde.  Specification 601,709 is referred to.
Patent GB-553195-A (GB)
Title: Improvements in or relating to amplitude limiters
IPC: H03G11/06
Filed: 1942-02-06
Abstract: 553,195. Wireless receiving circuits. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Feb. 6, 1942, No. 1624. [Class 40 (v)] A limiter comprises a band pass filter formed of two loosely coupled circuits 3, 5 connected respectively to input and output terminals 1, 2 and 6, 7 which are shunted by diodes 8, 11 having steady bias voltages 9, 12 byepassed by condensers 10, 13. Bias 9 is greater than bias 12.
Patent GB-175506-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/00
Filed: 1921-01-11
Abstract: 175,506. Sandiford, A. Jan. 11, 1921. Tobacco pipes. - A slotted tube 4 is inserted in an enlarged bowl 3 and is rotated and moved in or out to bring the bore into communication with the interior of the bowl or the atmosphere. The ends of the tube are inclined and the outer end is closed by a plug 5, which may be formed in one piece with a knob 7 from stamped sheet metal and secured by solder. On rotating the tube, the knob bears on the outer surface of the bowl and is forced outwards.
Patent GB-762117-A (GB)
Title: Light sensitive diazotype compositions containing silica
IPC: G03C1/60
Filed: 1954-01-20
Abstract: 762,117. Diazotype materials. GENERAL ANILINE & FILM CORPORATION. Jan. 20, 1954 [Sept. 23, 1953], No. 1744/54. Class 98(2) A light-sensitive diazotype composition comprises an aqueous dispersion of a diazonium compound, an azo dye coupling component and silica of particle size from 0.015 to 0.20. microns, free from iron and obtained by high temperature decomposition of a siliceous material in a gaseous medium. The silica may be made by reducing silicon tetrachloride in an atmosphere of hydrogen, by burning ethyl silicate in air or by treating sodium silicate with dilute sulphuric acid to form a gel, washing the sodium sulphate out with water and replacing the water by ethyl alcohol, heating in an autoclave until the critical temperature and pressure are reached, and then releasing the pressure and removing the alcohol under vacuum. Suitable silicas are obtainable under the Registered Trade Marks "Aerosil" and " Santocel." The diazonium compounds, azo couples, additives and bases to which the solutions are applied, may be those specified in Specification 749,034. In an example 'a sensitizing solution comprises ethylene glycol, alcohol, citric acid, zinc chloride, thiourea, resorcinol, acetoacetanilide, 2, 7- dihydroxynaphthalene -3, 6- disodium sulphonate, pdiethylamino benzene diazonium chloride zinc chloride double salt and saponin. Specifications 318,511, [Class 98(ii)] 625,999, 647,197, 647,617 and 705,551 also are referred to.
Patent GB-126673-A (GB)
Title: Improvements in the Manufacture of Carbons for Electric Arc Lamps.
Inventor: HEAPE WALTER
IPC: H05B31/06
Filed: 1917-02-05
Abstract: 126,673. Heape, W., and Grylls, H. B. Feb. 5, 1917. Arc-lamp electrodes.-Carbons particularly for use in search-lights are impregnated with a solution of an organic salt of calcium, say the acetate, of such strength that, after heating, the carbons contain from ¢ to 1 per cent. of lime. A solution containing 11 per cent. of calcium acetate introduces about 0.744 per cent. of lime. A compound of an element of the cerium or tungsten groups, for instance 1 per cent. of cerium nitrate, may be added to the solution. Preferably, a strong solution of the calcium salt, of sp. gr. 1.1051 for example, is brought to the required strength by mixture with sugar or colloid solution, containing for example 6 lb. of sugar per gallon. Exudation during drying is thus prevented. Ordinary finished carbons may be soaked for 2-5 hours, and further impregnation may then be produced by soaking in a vacuum for 5 hours, or by boiling with a reflux condenser. They are then washed superficially, dried, warmed gently in an oven to 100‹ C., and heated to 1000-1100‹ C. in airtight steel retorts, in which they may subsequently be slowly cooled. The whole heating and cooling process may take 15 hours. The carbons may be copper-coated to prevent tapering in use. They give enhanced luminosity in ordinary search. lights, but still better results are obtained by rotating the positive and inclining the negative carbon.
Patent GB-501173-A (GB)
Title: Improvements in or relating to engine starters
IPC: F02N15/06
Filed: 1938-01-20
Abstract: 501,173. Turning - gear ; securing pinions on shafts. BRIGGS & STRATTON CORPORATION. Jan. 20, 1938, Nos. 1918 and 1919. Convention dates, May 15, 1937 and May 24, 1937. [Class 7(v)] [Also in Group XXIV] An engine-starter pinion 8 is integral with a smooth-bored sleeve 9 threaded in a nut member 12 driven from the starting-motor shaft 7 through a rubber annulus 14, which is held in compression between flanges 13, 17 on the member 12 and the shaft 7 and is driven solely through friction between the flanges 13, 17 and the annulus. A cover ring 18 is flanged at 19 to engage over the flanges 13, 17. The periphery of the annulus 14 is concave to allow for additional compression when the pinion is arrested by a stop 20 on the shaft 7.
Patent GB-765223-A (GB)
Title: Improvements relating to steam turbine plant
Inventor: WHITEHOUSE REGINALD GEORGE
IPC: F01K9/00
Filed: 1954-01-22
Abstract: 765,223. Turbines; power generating systems. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 24, 1955 [Jan. 22, 1954], No. 1992/54. Classes 110 (3) and 122 (3). To increase the steam flow from an incoming boiler so as to produce a rapid increase in the temperature of the steam supplied to a large capacity steam turbine plant, steam is tapped from the steam supply system at a point on the boiler side of a turbine stop-valve located adjacent the turbine steam chest and supplied to a quick-starting air ejector provided with its own atmospheric condensing equipment whereby vacuum can be raised quickly in the main condenser without loss of condensate. Steam from a boiler is supplied to the turbine 3 through a pipe 1 and stop-valve 2. A pipe 4, connected to pipe 1, supplies steam to a large quick-starting air ejector 5 provided with a condenser chamber. This chamber is connected by a pipe 6 and trap 7 to the condenser 8. The pipe 6 may also include a float valve and flashbox. When the ejector 5 is required to deal with a large steam flow, the condenser chamber may be fed with a normal cooling water supply as an alternative to the supply of condensate. Steam for sealing the glands may be tapped off through pipe 11. Thermocouples disposed at the stop valve and inner wall of the steam chest may be provided to indicate when the valve 2 should be opened.