baber/WOPTO huggingface dataset:
Patent GB-402851-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T15/48
Filed: 1932-06-14
Abstract: 402,851. Fluid-pressure brakes. TOMLINSON, A. V., 65, Victoria Street, London. June 14, 1932, No. 16856. [Class 103 (i).] A triple valve comprises a control chamber supplied from the auxiliary reservoir through a non-return valve held open while the triple valve is in release position and permitted to close upon the initial movement of the triple valve to the application position. The apparatus comprises a triple valve 1 and a graduated release valve 4 the control chamber 25 of which is supplied by a valve 35 from the auxiliary reservoir 2 through passages 33, 34. The valve 35 is controlled by differential diaphragms 29, 30, the space between which is connected to the auxiliary reservoir by the pipe 33 and the space above the larger diaphragm 29 is connected to atmosphere in release position by passage 19 cavities 38, 37 in the triple slide valve 6 passage 17 and a regulating valve 5. The diaphragms will thus be in the upper position and the valve 35 will be held open. On valve application, initial movement of the slide valve 6 closes the passage 19 to the atmosphere and opens it to the valve chamber 7 and thus the auxiliary reservoir. Whereupon fluid is supplied to the space above the diaphragm 29 and the diaphragms arc moved to the lower position to allow the valve 35 to close. The accelerating bulb 10 is connected to atmosphere in release by passage 11 and cavity 37.
Patent GB-181244-A (GB)
Title: Improvements in and relating to perpetual calendars
IPC: G09D3/02
Filed: 1921-06-20
Abstract: 181,244. Schmidt, R. E. June 20, 1921. Date indicators.-In a date indicator of the type using a plurality of cards in a holder, the cards i bearing the days of the month are made of octagonal shape, and those bearing the days of the week f are square and are provided with gaps g through which the former cards are visible. The cards e bearing the names of the months are of rectangular shape, all the cards are printed on both sides symmetrically about a central axis.
Patent GB-545091-A (GB)
Title: Improvements in or relating to multiple safety valve units
IPC: F16K17/08
Filed: 1940-11-25
Abstract: 545,091. Fluid-pressure servomotor-control systems. COCKBURNS, Ltd., RODGER, J., and GRANT, T. Nov. 25, 1940, No. 16859. [Class 135] Relates to multiple safety-valve units of the type including at least a pair of safety-valve elements and associated valve-operating pistons arranged to open the valves against loading springs. The unit shown comprises a pair of safety valves each comprising a valve 1 at the lower end of a spindle 2 to which is secured a piston 3 movable in a cylinder 10. Each valve is loaded by a spring 4. The body of the unit includes a first chest 5 with inlet 6, and two outlets each controlled by a valve 1 ; a second chest 8 with exhaust branch 9 and cover portions 11. Each valve 1 is located upstream of its opening 7. The chest accommodates the two cylinders 10 is formed with guides 10a for the spindles 2. The three sections are secured together by long bolts 12 some of which are outside the body and others pass through long internal bosses. The upper face 13 of the chest 5 and the lower face 20 of chest 8 are machined, but are maintained out of contact by the chest 8 resting on the flanges 16 of valve seat members 15. The upper face 21 of chest 8 is machined to be contacted by the lower face of the cover 11. The unit operates in conjunction with a pair of spring- loaded pilot valves the outlets of which are piped to the chambers above the pistons 3. Specification 545,096 is referred to.
Patent GB-954239-A (GB)
Title: Method and apparatus for treating woven and knitted fabrics of yarns containing synthetic plastics
IPC: D06B19/00
Filed: 1961-05-09
Abstract: 954, 239. Textile treating apparatus. K BRUCKNER May 9, 1961 [May 9, 1960(3)], No. 16906/61. Heading D1L. In a method of setting or setting and dyeing of woven and knitted fabrics of yarns containing fibres of synthetic plastics, the fabric is pinned or clipped on to tentering chains of known construction and continuously passed in the tentered condition through a liquid bath effecting the setting or setting and dyeing of the fabric. In the apparatus shown tentering chains 1 of known construction run over sprocket wheels 2 through a water tank 3. Material 5 is guided over rollers 6, 8, 9 and 10 to be pinned or clamped to chains 1 in the usual manner. After passing through the water tank 3 the material may be passed through cooling apparatus 11 to drying apparatus 12 and then rolled or folded.
Patent GB-779565-A (GB)
Title: Improvements in or relating to a chlorination process
IPC: C07C17/00
Filed: 1955-06-13
Abstract: Tri- and tetra-chloroethylene are manufactured by reacting chlorine and 1,1-dichloroethane in a molar ratio of between about 1.5:1 to about 3.5:1 in the vapour phase at temperatures between about 350 DEG C. and 550 DEG  C. in a fluidized reaction zone, limiting the reaction period to not more than about 10 seconds and separating the trichloroethylene and tetrachloroethylene from the reaction products. The 1,1-dichloroethane used may be pure or it may be contaminated with up to about 10 per cent of alkanes or other chlorinated alkanes. Preferred temperatures lie between about 375 DEG  C. and 475 DEG  C. and the preferred reaction period is between about 4 and 8 seconds. A mol. ratio of reactants of 1.5:1 to 2.6:1 leads to selective production of trichloroethylene and a ratio of 2.6:1 to 3.5:1 to selective production of tetracloroethylene.  Fluidized media referred to are graphite, sand, alumina, pumice, silica, silicon carbide and porous earth, with a preferred average particle size of 25 to 250 microns. Atmospheric or superatsmospheric pressures may be used.  In examples: (1) the reactants, in a molar ratio of 1.8:1, are fed at 450 DEG  C. to a reaction zone containing graphite, the residence time of the reactants in the zone being 8 seconds, and the product contains vinyl chloride, dichloroethylenes, trichloroethanes, tetrachloroethanes, trichloroethylene (81.4 mole. per cent) and tetrachloroethylene (0.6 mole. per cent), the two latter compounds being recovered by fractional distillation; (3) the mole. ratio of reactants is 3.0:1, the residence time is 7 seconds and the other conditions are as in Example (1); the product contains tetrachloroethanes, pentachloroethane, trichloroethylene (3.7 mole. per cent) and tetrachloroethylene (89.8 mole. per cent), the latter two compounds being separated as in Example (1).  Examples (2) and (4) are comparative examples in which 1,2-dichloroethane is chlorinated, additional compounds appearing in the products being vinylidene chloride and hexachloroethane.  Reference is also made to the use of other reaction times, temperatures, mole. ratios of reactants and fluidized media in the process of the invention. Specification 673,565 is referred to.
Patent GB-198570-A (GB)
Title: Improvements in vacuum brake cylinders
IPC: B60T13/46
Filed: 1922-06-19
Abstract: 198,570. Gresham, H. E., and Kiernan, G. June 19, 1922. Fluid-pressure. - Vacuum brake cylinders of the kind described in Specification 25671/13 having a detachable lower part b provided with a projecting rim c, which ensures that the rolling packing ring d rests in the peripheral groove in the piston e when the cylinder and piston are assembled, are provided with an annular channel f extending around the cylinder at the junction of the top and bottom parts and communicating by way of the passages g, h respectively with the upper part of the cylinder and the fitting i for the hose connections. Adjustment of the lower part of the cylinder to alter the position of these connections can thus be effected without disturbing the upper part of the cylinder.
Patent GB-1452379-A (GB)
Title: Demodulators for frequency-shift keyed signals
IPC: H04L27/156
Filed: 1974-04-18
Abstract: 1452379 Data transmission; FSK systems SIEMENS AG 18 April 1974 [30 April 1973] 16935/74 Heading H4P In a demodulator for an incoming approximately rectangular FSK signal, a comparison rectangular signal is formed (e.g. by a counter) equal to or less than a half period of incoming signals to which the comparison signal is compared, the timed difference characterizing the value of the incoming signal, which is then passed through a low pass filter and threshold stage. Two consecutive half periods may be used with a similar comparison using a second counter and preferably the arithmetic mean is determined. In the embodiment only deviations between incoming signal, half waves and the comparison signal are measured hence resulting in high discrimination. In the described arrangements the frequencies are produced as decapitated sinusoids having steep flanks. Incoming signals B1 or B2 representative of separate frequencies are differentiated to produce pulses E1 or E2 at positive flanks, which after a delay t1-t2 opens a gate G1 allowing pulses to be admitted to a counter Z, also to a trigger stage K which emits a 1 for duration L. At time say t11, counter Z is reset also stage K which emits 0. Stage D1Z forms the difference between B1 and L=M1, or B2 and L=M2 which are applied to a summing circuit SU which sums the parts p1, q1 &c. making up M1 &c. and through low pass filter TP and threshold stage SCH feed a teleprinter, processor, or display. In an alternative arrangement Fig. 5 (not shown) through switches S1, S2 each half wave is examined in separate parallel circuits and after summing, the separate signals are led to a store (PS) whose output is dependent on both half periods of incoming waves.
Patent GB-1535944-A (GB)
Title: Catalyst sampling method
IPC: G01N1/08
Filed: 1976-04-27
Abstract: 1535944 Catalyst sampling UOP Inc 27 April 1976 [28 April 1975] 16989/76 Heading B8N A method of sampling a catalyst 2 within a vessel 1 and transferring the sample along a conduit 5 to a sample receiver 13 comprises closing the conduit while the receiver is evacuated to a pressure lower than that of the vessel and rapidly opening the conduit to cause a short rapid gas flow along the conduit. The gas flow fluidizes the catalyst at the entrance 6 of the conduit and sucks the catalyst sample into the receiver. The conduit opening 6 is downward facing. The conduit may alternatively be bent to curve downwards or have a cone spaced above its open end. The system is purged by a gas flow of nitrogen which may be shut-off during sampling.
Patent GB-364503-A (GB)
Title: Improvements in or relating to means for exterminating vermin
IPC: A01N59/16
Filed: 1931-06-11
Abstract: An insecticide &c. consists of potassium bichromate together with alum and potash preferably in the proportion of 2 parts of the first to 1 part of each of the other ingredients.  The mixture may be dissolved in water and sprayed or painted on trees or woodwork.
Patent GB-943557-A (GB)
Title: Improvements in or relating to tunnel diode circuit arrangements
IPC: H04B15/02
Filed: 1961-05-10
Abstract: 943,557. Tunnel diode circuits. SIEMENS & HALSKE A.G. May 10, 1961 [May 10, 1960], No. 17019/61. Heading H3T. A tunnel diode circuit is supplied with current from a voltage source constituted by at least one thermocouple or low-impedance photo-electric cell. The Figure shows a tunnel diode amplifier having input terminals 7, 8 and an output load 9 such as a 60 ohm line. The circuit is supplied with power from a photo-cell 4 exposed to daylight or is a light source fed from a conventional battery or mains supply or the supply of power may be from a thermocouple energized from similar conventional supply. An oscillator circuit may also be supplied with power in this way.
Patent GB-846486-A (GB)
Title: Improvements in or relating to polymerisable compositions
Inventor: HURD REGINALD
IPC: C09D163/00
Filed: 1957-05-29
Abstract: Polymerizable compositions based on vinyl acetate co-polymers and polyepoxides as claimed in the parent Specification are applied to surfaces comprising polyvinyl chloride e.g. by spraying, brushing or spreading.  In an example, a lacquer comprising a solution of a co-polymer of vinyl acetate and crotonic acid in a mixture of toluene and butyl acetate, benzoic acid modified polypropylene adipate, xylene, butanol, diphenylolpropane diglycide ether and diethylenetriamine is applied to polyvinyl chloride leathercloth by spraying and then stoved at 120 DEG C. for one hour.
Patent GB-700298-A (GB)
Title: Improvements in or relating to devices for distributing dusting material
IPC: A01C15/00
Filed: 1950-07-07
Abstract: 700,298. Manure distributers. RAUSCH, M. July 7, 1950 [July 18, 1949], No. 17038/50. Class 6 (1) In a manure distributer of the type wherein the inaterial is fed from a hopper a to a disc e rotating on a vertical axis, the disc is surrounded  by a wall f which deflects the material down on to the ground. The device is mounted on ground wheels, g which drive the disc e, worms b and c within the hopper, and a vertical grinding roller d concentric with the disc which pulverizes the material and feeds it to the disc e. The shape of the guide wall f is such that the ground is strewn uniformly with powder and the shape is determined, Fig. 3, by the intersection of  parallel equi-spaced lines i and tangents k to the disc e subtending equal angles m. The wall f is vertical and terminals in a hooded portion parallel to the plane of the disc.
Patent GB-1181489-A (GB)
Title: Improvements in or relating to Data-Processing Installations.
IPC: G06F3/00
Filed: 1968-04-09
Abstract: 1,181,489. Statistical apparatus. KIENZLE APPARATE G.m.b.H. 9 April, 1968 [22 April, 1967], No. 17046/68. Heading G4M. An account card is aligned against a single abutment edge on a feed table before being fed into a machine, the table being situated below or to one side of a keyboard. An associated printer may be arranged to print on an account card or on continuous forms, and may make carbon copies. The printer and feed mechanisms are separately mounted units. Card deflectors which, when operated, direct cards returned from the printer or sensing station to output pockets and at the same time prevent entry of another card into the printer or sensing station, are latched in the operated position by pawls which are releasable by associated solenoids.
Patent GB-660128-A (GB)
Title: Improvements in or relating to the marking of files and rasps
IPC: B23D71/00
Filed: 1948-06-25
Abstract: 660,128. Files, rasps. STUBS, Ltd., P., and DANE, E. S. April 23, 1949 [June 25, 1948], No. 17104/48. Drawings to Specification. Class. 61 (ii) [Also in Group XV] Each unit of a set of files or rasps is provided with a different colour to facilitate identification of the units according to fineness of tooth, the unit being provided in the plain space just above the shoulder of the tang with a dimple in which a spot of colour is placed. Specification 403,625, [Group XV], is referred to.
Patent GB-733644-A (GB)
Title: Typewriter attachment or device for the use of continuous stationery
Inventor: ROWE ALEXANDER MCDONALD
IPC: B41J17/00
Filed: 1952-07-08
Abstract: 733,644. Typewriters. PETTY & SONS, Ltd. May 26, 1953 [July 8, 1952], No. 17113/52. Class 100 (4). A duplicating arrangement for typewriters comprises a platform 6 attached for movement with the typewriter carriage, a power roller 9 mounted on the platform 6 for contact and winding by a web of stationery 18, and a sliding carbon paper holder 16 fed forward by the action of the stationery 18 and the typewriter platen 4, which when moved to an inoperative position, shown dotted, allows the carbon papers and the slide to be automatically returned to starting position by means of the wound roller 9. The power for roller 9 is derived by a spring wound up by the forward movement of the strip or by a counterweight mechanism. The platen 4 is moved to release the carbon paper by a lever 21 which also, by pin 2a, releases a lever 19 connected to a cranked spindle 13 carrying arms 12 supporting a pressure roller 11 which is thus moved away from the roll 9. Roll 9 is thereby free for rotation without the friction of the web 18. The platform 6 is supported for transverse movement with the carriage on a rod 7 supported by stay bars 8. In a modification the pressure roller 11 is omitted.
Patent GB-761360-A (GB)
Title: Improvements in and relating to fuel oils and the burning of fuel oils
Inventor: LEWIS ALUN
IPC: B02C15/12
Filed: 1954-05-07
Abstract: To a fuel oil which yields an ash on combustion a minor proportion of a magnesium silicate or a mixture of magnesium oxide, hydroxide or carbonate with silica is added; the silica or mixture contains no more than 5 per cent of metals other than magnesium.  The magnesium silicate may be prepared synthetically or be naturally occurring such as in talc, asbestine, enstatite, hectorite and commercial high magnesia earths; the silica may be synthetic or naturally occurring such as in quartz or Kieselguhr. Aluminium stearate may be added to the composition.  The fuel oils may be residual petroleum oils with or without other liquid fuels such as distilled or cracked fuel oils; the residual fuel oils are particularly those which form on combustion an ash containing a major proportion of vanadium and/or sodium compounds.  The fuel may be used in a gas turbine. Specifications 745,012 and 761,378 are referred to.  The Provisional Specification refers also to the addition of olivine to the fuel oil.
Patent GB-452229-A (GB)
Title: Improvements in the manufacture of short fibre rayon yarns
IPC: D02J3/02
Filed: 1935-06-14
Abstract: 452,229. Yarns. NAI, A., 13, Via del Conservatorio, Milan, Italy. June 14, 1935, No. 17203. [Class 120 (iii)] In the manufacture of staple fibre rayon yarns by subjecting bundles of continuous filaments to periodic or continuous contact with abrasive or cutting means, e.g. by passing the filaments through an abrasive or cutting ring and causing the ballooning of the yarn during the spinning operations to give the contact between the ring and the filaments, the bundles of continuous filaments are moistened with substances such as glycerine, sulphonated vegetable and/or mineral oils which act as lubricants and while moistened are subjected to the cutting operation in an atmosphere of high relative humidity, i.e. above 70 per cent saturation. As shown the continuous filaments are drawn from a bobbin a by feed rollers b, b<1>, are moistened by the roller c and pass through an abrasive or cutting ring d to be twisted and wound on the spindle f. Specification 387,003 is referred to.
Patent GB-675249-A (GB)
Title: Improvements in electromagnetic disc clutches and brakes
IPC: F16D27/14
Filed: 1950-07-10
Abstract: 675,249. Friction clutches. SOC. ANON. A. CITROEN. July 10, 1950 [July 18, 1949], No. 17236/50. Class 80 (ii). [Also in Group XXXIV] A non-warp disc for an electromagnetic clutch or brake comprises concentric friction rings 3 of magnetic metal attached to the radial arms 2 of non-magnetic spider 1 by stirrups 4 which can slide on the arms to accommodate thermal expansion of the rings. Both the driving and driven discs 1, 5 are so formed, and cooperate. with a stationary winding 8.
Patent GB-114440-A (GB)
Title: Improvements in Devices for Attachment to Looms for the Elimination of Reed Marks in the Woven Fabric.
Inventor: WARD FRANK
IPC: D03J1/22
Filed: 1916-12-04
Abstract: 114,440. Ward, F., and Fleming, H. Dec. 4, 1916. Temples.-In order to eliminate reed marks in the woven fabric, the temple is oscillated synchronously with the lay but has no direct or indirect connexion therewith. The temple 1 is pivoted to a shaft 2 in or below the plane of the warps and has a slotted arm 3 adjustably connected by a pin 4 and a slot 5 to a bell-crank lever 6 pivoted to the loom frame at 7. The lever 6 is rocked to oscillate the temple by means of a lever 9 carrying a pin engaged by a cam-slot 11 in a disk on the main shaft of the loom or a shaft driven therefrom. A spring 14 may be secured to the frame and bear against the temple to keep the shaft 2 in its slotted bearings. According to the Provisional Specification, the oscillation of the temple may be obtained from the motion of the reed. Reference has been directed by the Comptroller to Specification 1022/69.
Patent GB-662294-A (GB)
Title: Resilient mountings
IPC: F16F3/087
Filed: 1949-07-01
Abstract: 662,294. Resilient mountings. DUNLOP RUBBER CO., Ltd., and BRIERLEY, P. June 9, 1950 [July 1, 1949], No. 17398/49. Class 108(iii) A resilient mounting comprises a base member 1, a saddle member 2, fixed at each end to the base member, an openended box-like member 3 having one side passing between the saddle and base members and resilient elements 4, 4 of natural, or synthetic rubber held under compression between the base member 1 and the box-like member 3 and between the box-like member and the saddle member 2, respectively. In the arrangement shown, the base member, saddle member and box-like member are all formed from blanks of strip material of common width. In a modification, Fig, 3 (not shown), the rubber elements are of unequal thickness. The characteristics cf the mounting may be varied by substituting elements made from different rubber compositions.
Patent GB-319055-A (GB)
Title: Improvements in aerial systems
Filed: 1928-06-15
Abstract: 319,055. Standard Telephones & Cables, Ltd., (Bell Telephone Laboratories, Inc.). June 15, 1928. Directive signalling. - A unidirectional aerial comprises two antennae AN1, AN2 preferably a half wavelength in height and separated in the direction of wave propagation by a quarter wavelength. They are connected at their lower ends by a wire comprising an inductance Lp preferably located nearer the foremost aerial AN1 and coupled through a winding LS to the receiver. The arrows l1, l2 indicate the phase relationship of the signal energy picked up by both branches AN1, AN2 for a wave incident first upon the aerial AN1. The arrows ID1, ID2 indicate the respective phase relation of the corresponding currents flowing directly to ground at G, whilst IR1, IR2 represent the corresponding currents reaching ground after reflection from the open ends of the aerials AN1, AN2. The resultant currents through the winding Lp are in the same direction and combine additively in the receiver. For a wave coming from the opposite direction, i.e. incident first upon the aerial AN2, the corresponding currents are out of phase and are neutralized in the receiver. Any difference in amplitude between the currents induced in the two aerial branches can be compensated by shifting the ground tap along the inductance Lp. Fig. 3 shows an alternative method of connecting the aerial system to the receiver R. The aerials are tapped to two resonant circuits tuned to the signal frequency, the inductances in each circuit being mutually coupled. The direction of maximum reception can be reversed in Fig. 3 by reversing one of the inductance coils. The same effect can be secured in the arrangement of Fig. 1 by inserting the coil Lp in the ground lead instead of the position shown. The arrangement of the invention is applicable to more than two antennae branches. Specifications 272,117 and 307,446 are referred to.
Patent GB-1091551-A (GB)
Title: Improvements in or relating to bullets
Inventor: KNIGHT THOMAS JAMES
IPC: F42B14/04
Filed: 1965-04-26
Abstract: 1,091,551. Bullets. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. April 20, 1966 [April 26, 1965]. No. 17449/65. Heading F3A. A bullet is made from a mixture of 100 parts by weight of metal particles and a maximum of 1 part by weight of a lubricant consisting of an oil, fat, or wax, e.g. anhydrous lanolin, lithium grease soap, castor oil or paraffin wax. The lubricant may be limited to 0-5 parts and is preferably 0.2. The metal particles may consist of 85 to 100 parts of lead powder and respectively 15 to zero parts iron powder, or 90 to 100 parts lead flakes and 10 to zero parts iron powder. The mixture is extruded and several lengths moulded in a bullet press.