baber/WOPTO huggingface dataset:
Patent GB-876870-A (GB)
Title: Expanded thermoplastic materials
Inventor: CRAM DONALD JOHN
IPC: C08J9/06
Filed: 1957-10-02
Abstract: A mixture of a thermoplast, blowing agent and at least one of 1 : 1 : 2 : 2, or 1 : 1 : 1 : 2; tetrachlorethane; or tetrachloroethylene is heated under pressure to not above 130 DEG C. to decompose the blowing agent, cooled, the pressure released, then re-heated to give a rigid expanded thermoplast.  Specified are: thermoplasts-rubbers, polymers and copolymers from styrene, butadiene, acrylonitrile, acrylates, methacrylates, vinyl compounds, e.g. vinyl chloride, polyamides, superpolyamides or any of their mixtures: blowing agents, bicarbonates, azo compounds, sulphonyl hydrazides, hydrazones, organic nitriles, nitroso compounds, ureas and salts of substituted ureas. Ketones, toluene and xylene may be admixed with the chlorinated hydrocarbon, together with stabilizers, plasticizers, fillers and pigments.  Specification 818,224 is referred to.ALSO:A mixture of a thermoplast, blowing agent and at least one of 1; 1; 2; 2; or 1; 1; 1; 2 tetrachlorethane; or tetrachlorethylene, is heated under pressure to not above 130 DEG C. to decompose the blowing agent, cooled, the pressure released, then re-heated to give a rigid expanded thermoplast.  Specified are: thermoplasts-rubbers, polymers and copolymers from styrene, butadiene, acrylonitrile, acrylates, methacrylates, vinyl compounds, e.g. vinyl chloride, polyamides, superpolyamides or any of their mixtures: blowing agents-bicarbonates, azo compounds, sulphonyl hydrazides, hydrazones, organic nitrates, nitrous compounds ureas and salts of substituted ureas.  Ketones, toluene, and xylene may be admixed with the chlorinated hydrocarbon, together with stabilizers, plastizers, fillers and pigments. Specification 818,224 is referred to.
Patent GB-484919-A (GB)
Title: Improvements in or relating to vehicle steering gear actuated by liquid pressure
IPC: B62D5/06
Filed: 1936-11-11
Abstract: 484,919. Hydraulic transmission of power. AUTOMOTIVE PRODUCTS CO., Ltd., BOUGHTON, E. B., and HIGGS, C. W. Nov. 11, 1936, No. 30800. [Class 69 (ii)] [Also in Group XXXI] Comprises hydraulic steering- gear wherein the steering hand wheel or the like is connected to the steerable road wheels by a plurality of independent hydraulic systems, so that if one system fails the other or others continue to form an operative connection between the steering wheel and the road wheels. In the construction shown, a pump unit B comprising two separate gear pumps 42, 46 is driven by the steering shaft 35, and the pumps are connected by separate pipe-lines 29, 31 and 30, 32 to two independent cylinders 17, 18 of a motor unit A which operates a steering lever 15 connected by divided track rods 14 to the stub axles of the steering wheels. The pump unit is secured by screws 49 to a bracket 48, and the motor unit is pivoted at 23 to a bracket 24 on the front axle 10. Each system comprising a pump, pipe-line and motor cylinder is independent of the other so that if one breaks down, the other is not affected. The systems are kept full of liquid by means of a single reservoir 50 having a spring- loaded piston 57 and connected by restricted bores 53, 54 and pipes 55, 56 to the gear pumps 42, 46. Should one of the systems fail by leakage, the piston 57 descends and closes the bores 53, 54 so that the two systems are isolated, and the one that does not leak remains operative. A light spring 62 keeps a cup washer 63 against the piston 57.
Patent GB-618037-A (GB)
Title: Improvements in turbine wheels and their method of manufacture
IPC: B23P15/02
Filed: 1946-10-16
Abstract: 618,037. Elastic-fluid turbines. UNITED SPECIALITIES CO. Oct. 16, 1946, No. 30810. Convention date, Jan. 25. [Class 110 (iii)] Turbine blades, Fig. 7, are fashioned from tubular or sheet stock. In the latter case, the material is overlapped and welded down the middle of the concave part. The side tongues 3 embrace the outer portion of a ring 11, Fig. 11, and are gripped on to the ring by the inturned flanges 16 of discs 15, 17. In addition, rings or coiled wire engage the tongues and the latter are clinched around the rings. The ring 11 may be pierced with a number of radial holes by which air, entering the rotor through holes 19, is passed to the hollow blades.
Patent GB-337932-A (GB)
Title: Improvements in apparatus for testing electric discharge tubes
IPC: G01R31/25
Filed: 1929-10-12
Abstract: 337,932. Naamlooze Vennootschap Philips' Gloeilampenfebrieken. Oct. 13, 1928, [Convention date]. Current and pressure meters ; indicating faufts ; resistances, measuring.-Apparatus for rapidly testing the electrical characteristic of electric discharge tubes, as well as their vacuum and electrode isolation or leakage, comprises a reciprocating member over which a pointer is moved laterally within an envelope of curves representing the permissible limits of deviation of the characteristic. The vacuum and other qualities of the tube are indicated on the return stroke of the reciprocating member. As shown, a drum switch S is driven synchronously with a slide T, the contacts of the drum on the forward stroke of the slide connecting the apparatus for testing the electrical characteristic, for example, grid volts-anode current curve. On the backward stroke of the slide, contacts on the drum make circuit connections successively for vacuum test, isolation test, &c. The curved surface of the slide carries a scale paper, and the pointer N of a millammeter M<3> moves over the scale between limiting curves plotted thereon. The slide operates a potentiometer P<1> to vary the applied grid volts which are indicated on the voltmeter V<2>, Fig. 3, having a central zero scale. Leakage tests are made in positions 1 and 2 of the switch, vacuum test in position 3, and the characteristic is indicated in position 4, the leakage and vacuum being indicated on meter M<2>. The meters V<1>, M<1> indicate plate voltage and current, V<2> the grid bias, and V<3>, M<4> the filament voltage and current. The battery B is only in circuit on the vacuum test. When the filaments of the tubes under test are indirectly heated, a second drum switch is interconnected with the switch S, a number of tubes being heated together and connected successively to the testing apparatus, a pointer being provided to indicate which tube is connected.
Patent GB-281284-A (GB)
Title: Improvements in electrical converting apparatus
IPC: H02K47/16
Filed: 1927-11-18
Abstract: 281,284. Compagnie Franþaise pour l'Exploitation des ProcÚdÚs Thomson-Houston. Nov. 25, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Rotary converters and transformers.-An electrical converting apparatus called in the Specification a " metadyne " comprises an armature with multiple brushes arranged so as to transform a current of constant voltage to a current of constant intensity or into " Several currents correlated among each other by a linear function of constant co-efficients." Fig. 3 shows the arrangement in a 3-brush machine in which the two brushes a, a<1> have a " commutation axis " A, A<1> at right-angles to the brush line and the single brush b has a similar axis B, B<1>. Such a machine may be connected across a high-pressure supply, Fig. 4, and feeds constant current of low pressure to motors M. The brushes a<1>, b may, alternatively, charge a battery while the brushes a, a<1> feed motors at a higher voltage. In a 3- brush machine, two of the brushes may be shortcircuited and connected to one pole of a constant pressure supply while the third is connected to the other pole through the apparatus fed by the machine. Fig. 8 shows a form applicable for driving series traction motors M in which the brushes a, b are short-circuited through a " stabilizing " stator winding and the third brush c is connected to the motors through another " stabilizing " winding. A " variation stator winding " V produces fluxes in the same direction as that of the current of the brush c and a regulating stator winding R is fed with a current " which is a function of the speed of the metadyne." Fig. 9 shows a six-brush machine having short-circuited brushes a, b and four other brushes c - - f, connected to loads P, P<1>, Q, Q<1> on a 3-wire network at constant voltages. The Specification sets forth the equations upon which the invention is based and states in connection with Fig. 9 that " a certain linear function of the currents flowing from the brushes c - - f remains equal to the constant L." The coefficients of this linear function depend on the construction of the machine and the relative position of the brushes. The magnitude of the constant may be modified by regulating the action of the stator windings.
Patent GB-653229-A (GB)
Title: An improved support unit for use in cake stands, display stands and the like
IPC: A47F7/00
Filed: 1948-12-01
Abstract: 653,229. Stands. HUTTON, A. A. G., and STEPHENSON, C. G. Dec. 1, 1948, No. 31119. [Class 52 (iii)] Supports for holding cakes or other articles for display purposes consist of a supporting platform 1 and a base 2 separated by radially arranged plates 3. The supports may be of relatively narrow diameter constituting pillars 9, the inner edges of the plates being secured to a central stem.
Patent GB-886045-A (GB)
Title: Improved sealing device for relatively rotating parts
Inventor: MEALING JOHN ERIC
IPC: F16J15/38
Filed: 1959-09-11
Abstract: 886,045. Stuffing-box substitutes. MORGAN CRUCIBLE CO. Ltd. Sept. 7, 1960 [Sept. 11, 1959; Feb. 9, 1960], Nos. 31121/59 and 4589/60. Class 122 (5). In a sealing device for relatively rotatable coaxial parts in which a sealing ring 1 having a front sealing face 5 to bear against a counterface on one of the parts is mounted in an annular holder 2 adapted to be secured to the other part, the ring has a portion 4 of its outer periphery extending axially from its sealing face 5 formed of polygonal shape and engaged by a correspondingly shaped portion 7 of the holder so as to prevent relative rotation whilst permitting relative axial movement therebetween. The ring 1, which may be of carbon, graphite, plastic, sintered metal, ceramic or metalceramic, is sealed to the holder 2 by a resilient 0-ring 14 and urged outwardly of the holder by a spring 12 compressed between a retaining ring 11 and an end washer 9 held by a lip 8 on the holder. In a modification, Figs. 3 and 4 (not shown), the sides of the polygon are each concave and the apices are rounded to produce a smooth contour.
Patent GB-330482-A (GB)
Title: Improvements in and relating to swimming appliances
IPC: A63B69/12
Filed: 1929-10-14
Abstract: 330,482. Wolffe, J. Oct. 14, 1929. Testing physical strength.-A swimming appliance comprises a cable 1 which at one end is attached to a harness 2 for the swimmer and at the other end to a pivoted lever 3 which operates an indicator 9 through suitable gearing and a dash-pot or may comprise a toothed rack which engages a coiled spring acted pinion wheel geared to an indicator or may comprise a brake drum or the cable mav be wound round a pulley and a weight attached to its end.
Patent GB-1006991-A (GB)
Title: Sieve drum dryer
IPC: F26B13/16
Filed: 1964-08-04
Abstract: 1,006,991. Sieve drum driers. H. FLEISSNER, H. FLEISSNER, and G. FLEISSNER, [trading as ANSTALT FUR PATENTDIENST]. Aug. 4, 1964 [May 8, 1964], No. 31199/64. Heading F4G. In a sieve drum drier, the normal individual fan casings are omitted and the upper and lower radial fans 1, 2 associated with the individual drums (not shown) are mounted in a common fan chamber with fins 6 in the interstices between two or more adjacent fans. Several embodiments are disclosed, e.g. a three-part stellate fin in Fig. 3 (not shown) wherein the fans in the upper group rotate in the same direction and those in the lower group rotate in mutually opposite directions, and plane fins mounted between adjacent upper and lower fans, Fig. 4 (not shown) wherein the fans of one group and those of the other group rotate in opposite directions.
Patent GB-636981-A (GB)
Title: Improvements in the stabilising of exposed and developed silver halide emulsion layers containing silver images
IPC: G03C5/39
Filed: 1947-11-25
Abstract: 2 - Mercapto - 5 - nitrobenzenesulphonamide is prepared by heating 2-iodo-5-nitrobenzenesulphonic acid with PCl5, warming the resultant sulphonyl chloride with aqueous ammonia, heating with excess potassium hydrosulphide, and acidifying.
Patent GB-485113-A (GB)
Title: Improvements in or relating to turning lathes
IPC: B23B7/02
Filed: 1936-11-16
Abstract: 485,113. Lathes. LUCAS, Ltd., J., SWIFT, W., and PERKINS, L. R. Nov. 16, 1936, No. 31250. [Class 83 (iii)] A lathe or lathe attachment includes the combination of a pair of coaxial spindles, one within the other, the outer spindle being slidable and non-rotatable while the inner spindle is slidable with but rotatable relatively to the outer, a guide mounted transversely on the end of the outer spindle carrying a tool slide which is moved on the guide by the inner spindle. The inner spindle f, Fig. 1, is held against relative axial movement in the two-part outer spindle e which is carried in a casing formed integral with or as an attachment to the lathe headstock a. The outer spindle is provided at one end with a flange g to which is attached a transverse guideway h for a tool-carrying slide i. A rack on this slide is engaged by a pinion on the end of the inner spindle which rotates to give feed movement to the tool j, a long pinion o on the opposite end of the spindle being rotated by a toothed segment r, Fig. 2, moved through a shear pin v from a lever t operated by a spring-returned push rod x connected through a stroke-adjustment device 30-35 to a lever y moved about a pivot 2 by a cam z. Another cam 20 on the same shaft 7 operates a push rod 18 which moves through rack and pinion gearing and a slip collar, a short shaft 11, Fig. 1, which through further work and pinion gearing 9, 10 slides the outer sleeve together with the inner one to move the tool longitudinally of the work d. Transverse movement of the tool is limited by an adjustable stop screw 8, Fig. 1, and longitudinal movements are limited by adjustable nuts 27 on a screwed rod 28 attached to the flange g which coact with a lug 29 on the frame. A limited amount of rocking adjustment may be given to the tool through a pair of adjusting screws 39, Fig. 4 (one only shown in this Figure). By correlating the transverse and longitudinal movements of the tool, tapered work may be cut.
Patent GB-292135-A (GB)
Title: Improvements in or relating to the manufacture of poles for the magnets of electric motors or the like
IPC: H02K15/02
Filed: 1927-11-21
Abstract: 292,135. Holland, L. June 15, 1927, [Convention date]. Pole pieces; cores.-Pole pieces for electric motors &c., with or without a portion of the core, are made by rolling a bar to the required section and cutting it into lengths as shown.
Patent GB-465801-A (GB)
Title: Improvements in or relating to lithographing machines
IPC: B41L29/00
Filed: 1935-11-12
Abstract: 465,801. Printing-surfaces. ADDRESSOGRAPH-MULTIGRAPH, Ltd., and ELEY, A. Nov. 12, 1935, No. 31283. [Class 100 (ii)] In a rotary lithographic offset printing machine having a printing plate provided with sinuous edges, the projecting portions of which have slots by which the plates are secured to the printing - cylinder, the plate - clamping device comprises a bar D, pivoted by a pin d<3> to a clamp holder C, and provided with fingers E adapted to pass through the slots in the plate and, upon turning the bar D by the depression of a lever G, to clamp the plate firmly against a bearing surface F on the holder C. The surface F is of sinuous form corresponding to the shape of the end of the plate. The bar D is held in the plate-clamping position against the action of releasing springs T by means of a latch plate M having a notch H engaging a projecting pin R on the bar D. The holder C is adjustable about a pivot c<1> by means of a set screw threaded through the holder and engaging an internal projection on the cylinder. To prevent tearing of the plate, a washer J of a thickness equal to that of the printing-plate and of a diameter equal to that of the semicircular ends of the slots in the plate, is provided under each clamping finger E.
Patent GB-341862-A (GB)
Title: Improvements in twist lace machines
IPC: D04C5/02
Filed: 1929-10-15
Abstract: 341,862. Lace machines. STEVENS & WILLIAMSON, Ltd. and STEVENS, A. P. R., Wells Road, Nottingham. Oct. 15, 1929, No. 31287. [Class 74 (i).] The point bars 1 of a curtain or other twist lace machine are actuated positively during that phase wherein the points are withdrawn from the threads 10 while during the remainder of the cycle they are only actuated positively at the time the points are actually entering the threads. Each bar is carried by arms 2 pivoted to levers 3 on a shaft 4 which is rocked by levers 9, straddling cams 6. Removably attached to the cams 6 are auxiliary cams 6a which actuate the point bars during part of the remainder of the cycle, the movements being completed by springs. The arms 2 are supported by links 16 pivoted to levers 15 operated by cams 12 which impart vertical movements to the point bars and are partially countered by auxiliary cams 12a assisted by springs. According to the Provisional Specification the point bar movements may be entirely provided for by cams.
Patent GB-220869-A (GB)
Title: Improvements in apparatus for sterilizing surgical dressings, clothing and other materials
IPC: A61L2/07
Filed: 1923-12-15
Abstract: 220,869. Slater & Co., Engineers, Ltd., J., and Robinson, J. C. Dec. 15, 1923. Disinfecting-chambers of the kind provided with a hot air or steam jacket and in which hot air is introduced into the interior of the chamber to displace the sterilizing steam are formed with a passage for heating this air supply constituted by the application of a plate or plates to the jacket-plate. In the arrangement shown, a gap is left in the jacket-plate b and this is bridged by plates f, g which provide between them a space e to which air is introduced by a pipe, i and from which it is conveyed, to the interior of the chamber a by a valve-controlled pipe j.
Patent GB-933227-A (GB)
Title: Improvements in or relating to methods and apparatus for forming filter rods
IPC: C08F36/16
Filed: 1959-09-16
Abstract: 933,227. Cigarette filter rod apparatus. EASTMAN KODAK CO. Sept. 16, 1959 [Sept. 17, 1958], No. 31551/59. Class 130. A band 1 of crimped continuous filaments is fed into a nozzle-shaped member 6 in which an air jet from space 35 pushes the filaments through the nozzle into rod-forming and wrapping means 9. Compressed air is fed through a pipe 7 to the annular space 35. The filaments are preferably cellulose acetate filaments of between 1 and 16 denier or polyester filaments. Specification 765,963 is referred to.
Patent GB-220871-A (GB)
Title: Improvements in drying apparatus for blankets and the like
IPC: D06F95/00
Filed: 1923-12-17
Abstract: 220,871. Shampay, P. J. Dec. 17,1923. Stretching.-Blankets &c. are dried and stretched upon a perforated cylinder consisting of telescopic portions 17, 18, the part 18 being adjustable along the shaft 13 and adapted to be locked in position by a dog 23 which engages with teeth in the key 21.
Patent GB-196643-A (GB)
Title: Improvements in transmission control mechanism or transmission and brake control mechanism of power propelled vehicles
IPC: F16H13/02
Filed: 1921-11-25
Abstract: 196,643. Lanchester, F. W. Nov. 25, 1921. Axles; radius-rods.-In disconnectible friction driving gearing of the kind described in Specification 166,017 the driving wheel axles are constrained by radius rods to move in a definite circular path to engage and disengage the friction gearing. The wheel axles rotate in bearings s, Fig. 1, carried by arms a fixed on a rocking shaft b mounted in the frame e. The weight of the vehicle is applied to the driving wheel axle through driving rollers u and friction drums t on the axle, a spring tensioned rod h controlling the rotation of the shaft b. The drums t may be fixed on a through rotating axle 22, Fig. 6, carried by arms 24 fixed on a rocking shaft 25, or the axle 22 may be non-rotary, each combined road wheel and drum rotating independently on the axle. The road wheels may be carried by eccentric members instead of the radial arms a or 24. According to the first Provisional Specification, the driving rollers u may be mounted in eccentric bearings for adjustment, and the axle with the road wheels and drums may be removed as a unit after the bearing caps f have been removed.
Patent GB-858244-A (GB)
Title: Improvements in or relating to transformers
Inventor: VICARS-HARRIS MICHAEL
IPC: H01F30/10
Filed: 1957-10-10
Abstract: 858,244. Transformers. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Sept. 29, 1958 [Oct. 10, 1957], No. 31727/57. Class 38 (2). A transformer has two E-shaped magnetic ferrite half-cores 2, 3 with two concentric windings 4, 41 on the centre limb, the cores being mounted between two insulating plates 5, 6 grooved to define the position of the core. Attached to one plate 5 are pins 7 which project through holes in the other, 6, for securing to a printed circuit card. Between core part 2 and plate 5 are a sheet of paper 8 and strip of copper foil 9 whose projecting ends are bent parallel to the axis of the coils, one end of the foil also being twisted through 90 degrees and connected to one of the pins 7. The whole assembly is held together by bowed spring 1 made of tempered beryllium copper. The coil ends are connected to certain of the pins.
Patent GB-1082674-A (GB)
Title: Improvements in the filling of containers
IPC: B65B1/26
Filed: 1964-08-05
Abstract: 1,082,674. Filling containers. C. W. VOGT. Aug. 5, 1964 [Aug 5, 1963], No. 31744/64. Heading B8C. A valve 51 (Fig. 2) is provided between a supply source 11 and a gaseous differential pressure filler 15, and a vacuum connection 32 is provided for evacuating the filled container. In the apparatus shown a container 16 which may have a capacity larger than the magazine 14, is held tightly against the gasket 28. With valves 19 and 51 open pulverulent material, e.g. soap powder, is allowed to flow into the container 16 under gravity. The container 16 may then be topped off by withdrawing air via the filter screen 27 and a suction pipe 32, thus settling the contents and allowing more to be added. In a second tapping-off method both the valve 51 and 19 are closed whilst air is withdrawn from the container via the filter screen 27. Air pressure is then applied to a flexible container 43 via a pipe 45, and as the valve 19 is opened the contents of the container 43 are squeezed out into the container 16. Alternatively the filling may be effected as described in Specification 1,082,675. Before the container 16 is removed air is blown back along the pipes 32 so as to clear the filter 27. The lower open end of the valve 19 may be closed by a plurality of pie-slice shaped co-operating flaps. For filling large containers (66) (Fig. 5) several filling units (14) are attached to a single filling head (78). Pulverulent material from a supply hopper (61) is forced into the filling units (14) by a rotary blade. The filling head (78) also supports probes (76), (75), which are made of filter screen material and have elliptical or star-shaped cross-section. Internal suction is applied to the probes to remove air from the container as it is being filled, and after filling air is blown back through the probes to remove any particles that are adhering thereto. The rim of the head (78) is shaped so as to fit tightly against the lip of the container (66). Suitable filter screen materials are sintered polyethylene screen or sintered stainless steel screen.