baber/WOPTO huggingface dataset:
Patent GB-417567-A (GB)
Title: Improvements relating to contacts for electrical switchgear
IPC: H01H1/20
Filed: 1934-04-25
Abstract: 417,567. Switch contacts. SCHIELE & BRUCHSALER - INDUSTRIEWERKE AKT. - GES., Baden - Baden, Germany, and CRABTREE & CO., Ltd., J. A., Lincoln Works, Walsall, Staffordshire. April 25, 1934, No. 12426. Convention date, April 27, 1933. [Class 38 (v).] A contact assembly comprises an insulating carried sleeve 3b in which are inserted contact plates 1, 4 adapted for co-operation with pairs of fixed contacts 5a, 5b, 6<a>, 6b. The plates are urged apart by a laminated spring 2 so as to engage projections 3<a>, 3d on the carrier sleeve to prevent sideways movement which is further prevented by the bent round ends 2<b>, 2<c> of the spring engaging the bent round ends of the contact plate 1. Also the spring has a central notch 2<a> which engages a corresponding projection on the contact plate 4. If desired, the lower contact plate may be dispensed with. A multipole switch has a number of such assemblies mounted in sleeves which are moulded integrally to form a single carrier.
Patent GB-202695-A (GB)
Title: Lock for railway compartment doors
IPC: E05B65/20
Filed: 1922-12-27
Abstract: 202,695. Whitelaw, W. B. Dec. 27, 1922. Turn-bolt door fastenings.-In a railway carriage door lock of the type in which a spring- controlled bolt b is held withdrawn by a lockbar c until the latter is pressed sidewise by engagement with the door-post and in which the handle spindle a has to be moved endwise against a spring before it can be turned to rotate the bolt b, projections m are provided on the spindle so as normally to lie in notches in a hole k in a plate l countersunk into one face of the door g, a spring i surrounding the other end of the spindle and being housed in a casing j partially countersunk into the other face of the door.
Patent GB-125135-A (GB)
IPC: H04B10/11
Abstract: 125,135. Sharman, A. W. June 6, 1916. Flash signals.-In a secret flash-light signalling system employing a synchronously-operated transmitter and receiver, lack of synchronism between the transmitter and receiver is signalled visually to an observer at the receiving-station, which is provided with a manually-operated compensator to restore synchronism. In the arrangement shown in Figs. 1 and 2, a disk A, provided with a number of apertures a, and a commutator D are rotated by a motor approximately in synchronism with a similar transmitting-disk, behind which a lamp is placed. Mounted on the spindle a<1> of the disk A is an arm b<1> carrying a disk B and a brush b<4>. The disk B is provided with a viewing-aperture b, and the brush b<4> is placed in a circuit containing a magnet c<2> the armature c' of which carries the shutter c of a telescope C. To maintain the movements of the shutter c in synchronism with the movements of the transmitting- disk, the arm b<1> is rotated when the disk A and the transmitting-disk are out of synchronism, in such a manner that the observer behind the disk B sees the transmitter light continuously. In order that the amount and direction of the phase-displacement of the transmitting-disk and the disk A may be observed, the disk B may be provided with a slot bx and the disk A with inclined slot a<x>. Signalling is effected by displacing the lamp behind the transmitting-disk through a distance equal to one-half the distance between two apertures.
Patent GB-1379174-A (GB)
Title: Drawing apparatus
IPC: D02J1/22
Filed: 1972-03-17
Abstract: 1379174 Stretching filaments FIBER INDUSTRIES Inc 17 March 1972 [29 March 1971] 12592/72 Heading B5B [Also in Division D1] Yarns 12, 22 are drawn by being fed to the feed rolls 14, 24 of at least two adjacent draw frames, passing the yarns to a common draw roll 18 in one draw frame and thereafter passing the yarns to a second common roll 28 in the second draw frame. Roll 28 may have a greater linear velocity than roll 18, in order to produce further drawing, or it may have a smaller diameter or smaller angular velocity than roll 18 and thus acts as a relaxation roll. As shown two roll frames are modified to act as a three roll frame but a plurality of 2 to 4 roll frames may be modified to act as a 3 to 8 roll frame. The yarns 12, 22 may be monofilaments multifilaments supplied from a supply package or directly from an extruder. Polyester polyamide, polyolefin, polyacetyl, cellulose ether, acrylic, modacrylic, polyurethane (spandex) or polyvinyl chloride yarn may be used. In the example two polyethylene terephthalate yarns each comprising 24 filaments of 4À58 denier were passed through tension gates to feed rolls 14, 24, wherein 0À5% stretch was imparted. The feed rolls were at 80‹ C. to 110‹ C., draw roll 18 at 180‹ C. to 245‹ C. and relax roll 28 was at ambient temperature and its surface contained microprotuberances or was otherwise roughened. The draw ratio was from 1À1 to 1 to 7À0 to 1 and the relaxation imported between rolls 18, 28 was up to 50%, preferably 1 to 12%. The yarns were collected separately on ring and traveller takeups 21, 32.
Patent GB-440774-A (GB)
Title: Improvements relating to rotary intaglio printing
IPC: B41F9/10
Filed: 1934-07-23
Abstract: 440,774. Intaglio printing-machines. WEISS, A., 2823, Avenue 1, Brooklyn, New York, U.S.A. July 23, 1934, No. 12603/35. Convention date, July 22, 1933. Divided out of 440,748. Drawings to Specification.' [Class 100 (ii)] In a doctor mechanism for a rotary intaglio printing-machine having a doctor blade flexing member by which the pressure of the blade on the printing cylinder may be adjusted, the parts are constructed and arranged so that the blade, when not engaged by the flexing member, has its free end spaced from the cylinder. When flexed into contact with the cylinder, the edge of the blade is directed more radially than tangentially to the cylinder. The construction described is identical with that described in Specification 440,748. Specifications 440,773 and 440,775 also are referred to.
Patent GB-1298722-A (GB)
Title: Electrophotographic imaging method
IPC: G03G17/08
Filed: 1970-03-17
Abstract: 1298722 Electro-photographic processes XEROX CORP 17 March 1970 [21 March 1969] 12688/70 Heading G2H An imaging process comprises sandwiching a cohesively weak imaging layer between two sheets, applying a field, imagewise exposing, separating the sheets to fracture the layer and form complementary images on the sheets (Specification 1150381), and transferring one of the images from its sheet to a receiver by pressure applied for example by rollers or plates. Preferred materials are listed. An aluminium receiver may be used to form a lithographic plate.
Patent GB-1253714-A (GB)
Title: Process and device for processing highly viscous materials
IPC: B29C48/64
Filed: 1969-03-11
Abstract: 1,253,714. Screw mixers. UNIROYAL AG. 11 March, 1969 [22 March, 1968], No. 12694/ 69. Heading B1C. A screw for processing highly viscous materials in a single screw device, especially for rubber, and providing turbulent flow, has an intake section 2, a section 4 with a backfeeding single or multi-start thread 5 having regular or irregular interruptions 6, and a section 8 with a two-start thread, the two threads having different pitch angles, the thread 10 downstream of which the groove progressively decreases having transverse grooves 11. As shown the thread 10 is also wider than the thread 9; both taper at their ends to provide free communication with adjacent zones. There may be a single or multiple start output screw 15. The apparatus may be cooled.
Patent GB-342362-A (GB)
Title: Improvements relating to the charging of furnaces for the heat-treatment of metal and other goods
IPC: C21D9/00
Filed: 1930-02-25
Abstract: 342,362. Furnace charging-machines. BIRMING. HAM ELECTRIC FURNACES, Ltd. and LOBLEY, A. G., 55, George Street, Parade, Birming- ham. Feb. 25, 1930, No. 12835. [Class 51 (ii).] In a furnace charging-machine c of the kind comprising arms e supported at one end of a wheeled carriage c<1> which is accommodated in a chamber b below the furnace a<1> when the machine is in the run-in position, the carriage is fitted with a pair of wheels at the rear end and a single wheel at the front end and runs on a triple set of rails of which only the middle one d<2> extends into the chamber b. In a modified construction, the track for the rear wheels of the carriage c<1> is mounted on a trolley adapted to run on rails arranged parallel to the front of the furnace.
Patent GB-401316-A (GB)
Title: Improvements in or relating to electrical wave filters
IPC: H03H7/01
Filed: 1932-05-04
Abstract: 401,316. Impedance networks. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, and PADDLE, L. H., 2, Burlington Gardens, Chiswick, both in London. May 4, 1932, No. 12837. Drawings to Specification. [Class 40 (iii).] A filter is combined with one or more resonant or antiresonant circuits designed to shunt or to block frequencies lying in the attenuation range but belonging to signals that are too strong to be sufficiently eliminated by the filter. The additional single-frequency circuit or circuits may be inserted at the input or output end of the filter, or between two sections. The dimensions are such that the insertion of the resonant or antiresonant circuits does not substantially affect the characteristic impedance of the filter ; thus the impedance of a resonant circuit inserted into a simple high-pass filter should be 30 per cent greater than the nominal characteristic impedance of the latter, and that of a shunt circuit should be 23 per cent less.
Patent GB-128576-A (GB)
IPC: B60G17/02
Abstract: 128,576. Houdaille, M. Sept. 21, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Laminar springs.-Relates to the application of the adjusting means described in Specification 28396/12 to cantilever springs. As shown in Fig. 4, applied to a vehicle in which the axle is suspended at one end of the springs, the effective length of the springs is varied by moving a handlever 13 controlling the blocks 5, 15 slidable in guides 4, 14. One set cf blocks and guides may be dispensed with. The blocks 5, 15 may be adjusted by means of screw gearing.
Patent GB-271100-A (GB)
Title: Improvements in or relating to apparatus for purifying and deaerating molten iron
IPC: C21C1/00
Filed: 1927-05-13
Abstract: 271,100. Dechesne, J. May 14, 1926, [Convention date]. Addition to 265,827, [Class 51 (ii), Furnaces and kilns for applying &c.]. Molten metals, removing occluded gases and other impurities from by agitation and other mechanical treatment.-In an apparatus for purifying and deaerating molten iron and other metals, the molten metal flows by a spout 2 from a furnace 1 or from the forehearth of the furnace into a ladle 3, instead of the forehearth described in the parent Specification. The ladle 3 is agitated or jogged during the pouring of the metal by cams 13 engaging abutment 12 and is pivotally suspended by pins 9 in bearings 10 on a fixed frame 11, being supported therein by bands or loops 4 from a crane 5. The ladle 3, which is provided with a cover 6 with an opening 7 therein and a slag wall 8, is provided with a projection 17 which rests on a yielding bearing 16. Instead of a ladle or drum a crucible may be used.
Patent GB-1325410-A (GB)
Title: Process for the production of vinylcyclobutanes
IPC: B01J31/12
Filed: 1972-03-20
Abstract: 1325410 Vinylcyclobutanes SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 20 March 1972 [22 March 1971] 12909/72 Heading C5E Vinylcyclobutanes or polycyclic hydrocarbons containing a vinylcyclobutane unit are prepared by the cyclo-co-dimerization of ethylene or an ethylenic Diels-Alder adduct of at least 2 carbocyclic rings (e.g. norbornene, norbornadiene or tricyclo[5,2,1,0<SP>2</SP>'<SP>6</SP>]deca-3,9-diene) with a C 4  or C 5  straight chain conjugated diene in liquid phase solution using as catalyst either a tetrahydrocarbyl Ti compound alone or a compound R 4 Ti (where R is alkoxy, aryloxy, Cl, Br or hydroearbyl) together with a hydrido, alkyl, or aryl derivative of a Group Ia, IIa or IIIa metal. The Ti compound should contain only one cyclopentadienyl ring. Examples describe the preparation of (i) vinylcyclobutane from ethylene and butadiene (with ethylidene cyclobutane, hexadienes and vinylcyclohexene as by-products), (ii) 2 methylvinylcyclobutane from pentadiene and ethylene, (iii) 3 - vinyl tricyclo[4,2,1,0<SP>2,5</SP>]nona - 7 - ene from norbornadiene and butadiene, and (iv) 3- vinyl tricyclo[4,2,1,0<SP>2,5</SP>]nonane from norbornene and butadiene. Suitable catalysts are: single component catalysts: cyclopentadienyl titanium tribenzyl or tetrabenzyl Ti; two component systems: (nBuO ) 4 Ti + BuLi or Et 3 Al 2 Cl 3  or Et 3 Al or LiAlH 4 ; (AcAc) 2  TiO + Et 3  Al; or C 5 H 5 TiCl 3 +Et 3 Al. The catalysts may include modifiers such as 2,2<SP>1</SP>-bipyridyl, triphenylphosphine, pyridine, 1,10-phenanthrolene or tetramethylene diamine.
Patent GB-1281793-A (GB)
Title: Improved apparatus for the air drying of tobacco
IPC: A24B3/04
Filed: 1971-05-04
Abstract: 1281793 Separating particles from gas stream BRITISH-AMERICAN TOBACCO CO Ltd 4 May 1971 [15 June 1970] 12930/71 Heading BIT [Also in Division F4] In a tobacco drier (Division F4) some of the air in which the tobacco is conveyed is bled off from ducts which interconnect a series of drying chambers by valves connected to the inside surfaces of curved portions of the ducts, the tobacco being kept against the outer surfaces of the curved portions by centrifugal forces.
Patent GB-463102-A (GB)
Title: Improvements in siphon bottles
IPC: B67D1/04
Filed: 1936-05-08
Abstract: 463,102. Siphon bottles. KRUPP AKT. GES., F. May 8, 1936, No. 13031. Convention date, Oct. 17, 1935. [Class 14 (i)] A siphon bottle of the type comprising a separate reservoir for compressed gas fitted with a valve which is controlled by a diaphragm so that gas is admitted from the reservoir to the bottle in accordance with the pressure existing in the latter, is provided with a second valve also controlled by the diaphragm and adapted to seal the gas passage when the reservoir is empty or is removed. The bottle 1 has a detachable head casting 4 with a threaded bush 73 to receive a nipple 10 carrying the gas reservoir 11. The nipple has a valve seat 15 closed by a valve 14 under pressure of a spring 13. The valve 14 has a stem resting on a flatted pin 77 which engages a valve 79 adapted to close the lower end of the bore 76 in which the pin 77 slides. The valve 79 rests on a lever 26, the outer end of which rests on a diaphragm 19 raised by a spring 24. When a charged reservoir is secured to the bush 73, the pin 77 opens the valve 14, so that gas passes through the loose threads of a plug 12, through the bore 76, and into a chamber 18 above the diaphragm, passing then by a bore 28 into the bottle 1. The space below the diaphragm is connected to atmosphere by passages 32, 33 and a safety valve 29, 35. When the desired pressure is established in the bottle 1, the diaphragm 19 is depressed, and the valve 14 closes. When the reservoir 11 is exhausted, or is removed, the diaphragm is raised by the spring 24, so that the valve 79 seals the bore 76, preventing escape of gas from the bottle 1:
Patent GB-748115-A (GB)
Title: Improvements relating to circulatory fluid pressure power steering mechanisms for road vehicles
IPC: B62D5/087
Filed: 1954-05-05
Abstract: 748,115. Ball joints. GENERAL MOTORS CORPORATION. May 5, 1954 [June 10, 1953], No. 13042/54. Class 65 (2). [Also in Group XXIX] In a vehicle power-steering mechanism, movement of a crank-arm 42 connected to the usual worm-and-nut gear is communicated to a longitudinally-moving control valve by a ball pivot which is held against a relatively fixed plate 126 by opposed wedges 140, 142. Locating pins 148, 150 prevent relative rotation between the wedges, and wedge 140 has a loading spring 146.
Patent GB-1535251-A (GB)
Title: Method for the production of cross-linked thermoplastic or elastomeric materials
IPC: B29C48/05
Filed: 1976-03-31
Abstract: 1535251 Crosslinked polymer blends KABEL. UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 31 March 1976 [23 June 1975] 13086/76 Heading C3M Crosslinked thermoplastic or elastomeric materials are prepared by grafting a silane in the presence of moisture by a method which comprises kneading a mixture comprising a polymer composition containing (A) at least 50 weight per cent of an olefin polymer or copolymer and (B) up to 50 weight per cent of a modifier derived from monomer(s) differing qualitatively or quantitatively from the monomer(s) from which A is derived and comprising an elastomer and/or other polymeric substance, grafting, degassing if necessary and shaping. Grafting may be effected in the presence of a peroxide and grafting and crosslinking activators may also be present. The materials may be used for sheathing cables and tubes. The mixtures may comprise (A) a polymer of ethylene, optionally with an acrylate, vinyl acetate or a higher olefin, or of propylene or butene, and (B) may be an EP, EPDM, butyl or chlorosulphonated polyethylene rubber, polypropylene, polybutene, polyisobutylene or chlorinated polyethylene.
Patent GB-373754-A (GB)
Title: Improvements in and relating to seats
IPC: A47C7/00
Filed: 1931-05-04
Abstract: 373,754. Chairs. WYATT, W. H., Richardson Street, High Wycombe, Buckinghamshire. May 4, 1931, No. 13173. [Class 52 (ii).] A chair, of the kind in which a rigid seat 10 serves also as a bracing member for the me structure, has as a support for the back of the seat and as a brace for the middle parts of the back legs 2, a metal bar 1, of angle T, U, or like section, secured with one web lying against the fronts of the back legs and another web supporting the seat. The seat may be secured to the bar 1 by screws passing through its vertical web, and some of the screw holes 9<1> may be elongated to avoid strains due to distortion of the seat. Extensions 51 of one or more webs may be turned against the sides of the back legs and/or seat to provide additional support.
Patent GB-132686-A (GB)
IPC: G01G21/04
Abstract: 132,686. Denison, G. H., and Brown, S. C. Dec. 13, 1918. Bearings.-The knife-edged centres of weighing-machines are made with one side parallel to the knife-edge and the other side at an angle thereto, thus allowing the centres to be fitted by removing material from the taper side or by adding a liner thereto, without altering the position of the knife-edge. The centres may be of threesided formation, Fig. 1, or may be of rectangular section, the latter form being shown applied to a steelyard, Fig. 5, the parallel sides of the centres 4, 5 being both on the left-hand side. Centres of three-sided formation are shown applied to a weigh-bridge lever, Fig. 7, keys C, D being driven in to secure the centres more firmly. When the groove in the lever is parallel-sided, a taper key. 14, Fig. 11, may be driven in, the centre being held down by a screw 15.
Patent GB-330089-A (GB)
Title: Improvements in lowering chutes
IPC: B65G11/06
Filed: 1929-04-29
Abstract: 330,089. Ellis, R. E., (Anthracite Separator Co.). April 29, 1929. Shoots. - A spiral shoot comprises a rolled metal spiral section 12 having a web 16, Fig. 4. and an inwardly extending flange 14, a spiral runway 22 supported solely by the flange, .and either uprights 10, Fig. 1, for supporting the section or means 36, Fig. 6, for anchoring it to a base 42. The upper flange 32 retains the material on the runway.
Patent GB-133238-A (GB)
IPC: G03B9/58
Abstract: 133,238. Edwards, G. May 22, 1919. Shutters.-A device for actuating the shutter trigger after a predetermined interval comprises a watch mechanism without the escapement mechanism, and for the dial hand is substituted a time-indicating pointer l, Fig. 1. The wheel f, Fig. 2, on the central arbor has a pin g which in zero position is held by the end i<1> of a pivoted lever i. The lever i protrudes through an opening k in the case which is padded with resilient material tending to press the end i' of the lever on to the wheel f and angularly towards the centre thereof. A sliding rod h is used to actuate the shutter. To set the mechanism, the lever i is pressed to release the pin g, and the hand l and wheel f are allowed to rotate until the hand l indicates the exposure required, at which point the lever i is moved so that its end i<1> engages the teeth of the wheel f. For an exposure, the lever i is moved to release the wheel f and the pad k forces the inner end i' back into the path of the pin g. When the set time has elapsed, the pin g will have thrust the actuating rod completely outwards to effect the exposure and thereafter escapes past the end of the rod and is re-arrested in zero position by the end i<1> of the lever f.
Patent GB-234992-A (GB)
Title: Improvements in and relating to gas fire and cooking appliances
IPC: F24C3/00
Filed: 1924-05-30
Abstract: 234,992. Hobbs, A. C., and Rouse, F. J. May 30 1924. Gas cooking-stoves; gas fires.-A basket having barred sides a and a bottom formed of a perforated plate contains asbestos lumps heated by a tubular burner j, and is provided with a hot-plate c which may be removed when an open fire is desired. A grill-pan g is supported beneath the burner on ledges h carried by the legs b. An oven may be supported on the hot-plate or hung at the side of the fire.
Patent GB-581735-A (GB)
Title: Improvements in and relating to hydraulic pumps
IPC: F04B7/00
Filed: 1942-09-23
Abstract: 581,735. Joint-making packing. BEVIR; O., LEFROY, F. E., and WEBSTER, T. H.' Sept. 23, 1942, No. 13413. [Class 122 (iii)] [Also in Group XXVIII] In a swash plate pump an annular block p carrying suction and delivery valves is provided with leather packing rings v pressed into contact with the housing walls x, y by fluid pressure.
Patent GB-1079723-A (GB)
Title: Improvements in shock absorbers
Inventor: UTTING REGINALD
IPC: B60G17/019
Filed: 1963-04-04
Abstract: 1,079,723. Shock-absorbers. BRITISH AIRCRAFT CORPORATION (OPERATING) Ltd. March 26, 1964 [April 4, 1963], No. 13430/63. Heading F2S. In a hydro-pneumatic shock-absorber of the kind comprising two relatively-reciprocable cylinders 10, 11 the hydraulic and spring fluids are maintained at a substantially constant temperature by means of an electric heater 17 which is incorporated in the shock-absorber and is controlled by a thermostat 22. The heater 17 is housed within a tube 16 attached to an end wall 28 of the cylinder 10 a freely slidable piston 12 within which divides it into air and oil chambers 13, 14, respectively. Dashpot action is provided by the flow of hydraulic fluid between the chamber 14 and the chamber 15 of the cylinder 11. Electric leads pass from the thermostat 22 to a connection in an end plug 27 at the outer end of the tube 16. The shockabsorber may be filled with air only.
Patent GB-456657-A (GB)
Title: Process of producing uniformly fine-grained castings from metals and metal alloys
Filed: 1935-05-07
Abstract: Gases and slags or dross are expelled from molten metals or alloys by treating the latter with mechanical high-frequency vibrations of 100,000 to 300,000 per second produced in the form of ultra-sound waves by means of a quartz plate under the influence of electric high-frequency currents.  The vibrations may be transmitted from the plate by means of a pipe or rod connected thereto and dipping in the bath.  Alloys may also be produced by adding to a molten base metal any additional elements before the treatment with the vibrations, and then the vibrations are applied whereby the elements and the base are uniformly mixed to form the alloy and the latter degasefied.  The preparation of a copper-aluminium alloy containing 94-97 per cent of aluminium and an aluminium-silicon-iron alloy containing 36,48 per cent of iron and 23,62 of silicon is referred to.