baber/WOPTO huggingface dataset:
Patent GB-1350469-A (GB)
Title: Method and apparatus for rapidly scanning a document
IPC: H04N1/17
Filed: 1971-06-11
Abstract: 1350469 Copying by scanning XEROX CORP 11 June 1971 [19 June 1970] 27436/71 Heading H4F The operation of a facsimile transmitter is controlled by the information detected on a scanned document during a line scan so that if this information is low resolution signals representing it are transmitted during the line scan and the document is advanced at the end of the scan, whereas if the information is high resolution signals relating to only part of it are transmitted during the line scan and the document is not advanced at the end of this scan, the same line of the document then being rescanned at the same speed and the signals relating to the rest of the information transmitted during the rescan, at the end of which the document is advanced. The signals picked up from a photomultiplier viewing light reflected from the document are encoded into pulse form, and if all the pulses are spaced apart by greater than a chosen minimum pulse spacing the information is classed as low resolution whereas if at least a predetermined number of the pulse spacings in a scan line are less than this spacing the information is classed as high resolution. The signals for the document to be advanced are also transmitted to the receiver so that it only advances the copy in synchronism with the advance of the original document.
Patent GB-225212-A (GB)
Title: An improved steam circulator
IPC: B29C35/00
Filed: 1924-11-17
Abstract: 225,212. Carmichael, A., and Carmichael, W. J. Nov. 19, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Heating by circulation of fluids.-In a steamheating system, the steam circulation is stated to be promoted and the water of condensation returned by means comprising a chamber fitted in the return pipe, the chamber being divided into two parts, one part having a relatively small passage leading into the other part, which has a relatively large passage. A chamber 4 to which the return pipe 3 is connected consists of a small upper cylinder 4a drilled axially and a relatively large lower cylinder 4<b>. The chamber is connected to the boiler 1 by a pipe 9 fitted with twisted wires or rods or with other steam-flow retarding means. The pipe opens into the conduit 15 through which steam is withdrawn from the boiler. The chamber and the pipe may be placed in communication with the boiler through pipes 18, 21 fitted with stop valves.
Patent GB-1244056-A (GB)
Title: A braking system for a vehicle
IPC: B60T7/04
Filed: 1969-05-30
Abstract: 1,244,056. Braking system. MASSEY-FERGUSON SERVICES N.V. 30 May, 1969 [10 June, 1968], No. 27520/69. Headings F2E and F2F. A braking system for a vehicle includes primary powered and secondary mechanical brake actuation means, the connection to the secondary mechanical brake being provided with an automatic wear adjustment means which operates in response to repeated operation of the primary powered brake actuation means. The primary powered brake actuation means 13 acts as for example through a lever 12 and a lever 8 on a tie-rod 6. The tie-rod 6 has a lost-motion connection corresponding to the normal brake clearance. The tie-rod 6 operates a ratchet carrying lever 5 pivoted freely on a shaft 1. The shaft 1 also freely mounts a pedal 3 which carries a pawl 15 co-operating with the ratchet 7, the ratchet 7 and pawl 15 forming the wear adjustment means. The pawl 15 may be retracted from the ratchet 7 by a movement of a rod 17 against spring loading and the system may be held in a brake-on condition by the co-operation of a further pawl 22 with a rod 21 which is pivotally connected to the pedal 3. Two such connections may be provided one at each side of the pedal 3, each to actuate a brake.
Patent GB-428580-A (GB)
Title: A wheeled attachment for heavy apparatus
IPC: B62B3/06
Filed: 1934-09-26
Abstract: 428,580. Hand trucks. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and HARDMAN, J., 23, Osterley Grove, Ravenscliffe, Bradford, Yorkshire. Sept. 26, 1934, No. 27607. [Class 108 (i)] A wheeled attachment for apparatus normally resting on the ground, comprises a bar 1 to each end of which are secured a pair of cheeks 2 in which are mounted a wheel 4 and a lifting lever 7. The levers are operated by nuts 10 on a coupled rod 9<a>, 9<b>, provided with right and left hand screw threads the rod being rotated by means of a tommy bar inserted in apertures 13<a> in one of the heads 13. The apparatus to be lifted and moved may be, for example, the electric controller of a motor coach and is provided with brackets or gussets 15<a> each having an open-sided slot 15<c>, 15d, 15<e>, Fig. 6. In operation the wheeled attachment or a pair of them are wheeled into position and the rod 9<a>, 9<b> operated causing the levers 7 to rise and enter the portion 15<c> of the slot. Further manipulation raises the apparatus and causes the portion 15<d> of the slot to pass over the bar 1 till eventually the apparatus is effectively locked by the levers and bar pressing against the upper and lower portions of the slot respectively.
Patent GB-465564-A (GB)
Title: Improvements in machines for shearing metal and other sheet material
IPC: B23D19/04
Filed: 1936-10-12
Abstract: 465,564. Cutting sheet materials. LAGER, G. H., and LAGER; R. G. Oct. 12, 1936, No. 27607. [Class 31 (i)] [Also in Group XXII] In apparatus for shearing a stationary sheet, coacting disc cutters 9, 10, rotated by friction, are mounted castor-fashion on an oblique pin 21 on a carriage 12 traversed by a chain 18 from a crank 17. The carriage is guided on a rail 14 by rollers 13. The sheet is clamped by a member 2 and by a tensioning clamp 8.
Patent GB-1392226-A (GB)
Title: Derivatives of cephradine and cephalexin and their preparation
IPC: C07D501/04
Filed: 1972-06-13
Abstract: 1392226 Cephadine and cephalexin derivatives E R SQUIBB & SONS Inc 13 June 1972 [28 July 1971] 27669/72 Heading C2C Compounds of the Formula (I) and their hydrates (where the ring Z is phenyl or 1,4-cyclohexadienyl and M is Na or K) are prepared by reacting a compound (II) with sodium or potassium carbonate in the presence of water.
Patent GB-682163-A (GB)
Title: Preparation of drying oils
IPC: C08F36/04
Filed: 1948-10-25
Abstract: Oily polymers and copolymers are made by polymerizing diolefines alone or admixed with a minor proportion of a compound of the formula R1R2C=C.R3R4 where at least one of the R's is an organic group or a halogen atom and the other R's an organic group, a halogen or a hydrogen atom, in the liquid phase, e.g. in the presence of a solvent or diluent for the monomers, in a partly filled reaction vessel, under super p  atmospheric pressure and temperature, in the presence of a peroxy catalyst and flushing the interior surface of the reaction vessel continuously with at least a portion of the liquid phase.  The solvent or diluent may be butane, xylene, benzol, toluene, cyclohexane or naphtha and the mixture may also contain chain terminating agents such as carbon tetrachloride or chloroform, and viscosity modifiers such as diisopropyl xanthogen disulphide and sulphur.  The flushing may be effected by agitation of the vessel or by pumping a portion of the liquid to the top of the vessel and allowing it to cascade down the inner walls.  Specified diolefines are butadiene-1-3, isoprene, piperylene, dimethyl-butadiene, methylpentadienes, dicyclopentadiene, chloroprene, bromoprene and mixtures.  Compounds of the above formula mentioned are methyl acrylate, methyl methacrylate, acrylonitrile, methacrylonitrile, vinyl acetate, vinyl chloride, vinylidene chloride, vinyl isobutyl ether, styrene, methyl styrenes, mono- and di-chlorostyrenes, ethyl fumarate, ethyl maleate, trichloroethylene, and chloromaleic anhydride. Specified catalysts are hydroperoxides of cumene, t-butyl, and o-, m-, and p-cymene; t-amyl,tbutyl, and cumene perbenzoates, and acetyl and benzoyl peroxides.  The molecular weights of the polymers are between 1,000 and 10,000 and preferably the polymerization reaction is controlled to give not more than an 80 per cent conversion.
Patent GB-413260-A (GB)
Title: A process for the manufacture of valuable products by polymerisation of unsaturated hydrocarbons
IPC: C10G50/02
Filed: 1932-10-05
Abstract: Lubricating and transformer oils are prepared by polymerizing a fraction of a cracked benzine boiling below 75 DEG  C., preferably of a vapour phase cracked benzine.  In examples various fractions are polymerized in the presence of nitromethane and aluminium chloride and the properties of the resulting products compared.
Patent GB-1074136-A (GB)
Title: Compositions for combating soil-dwelling fungi and nematodes
IPC: A01N35/08
Filed: 1964-07-07
Abstract: A composition for combatting soil-dwelling fungi and/or nematodes comprises 1,2,2-trichloronitroethylene and 2,3-dibromopropionitrile. Optional ingredients are surface active agents, solid carriers, solvents and insecticides or disinfectants such as Aldrin, Heptachlor, BHC, ethylene dibromide, dibromo-chloropropane, chloropicrin, methylbromide and 2,4-D.
Patent GB-306566-A (GB)
Title: Treatment of ores or the like containing platinum
IPC: C22B5/02
Filed: 1927-10-21
Abstract: 306,566. Smith, S. C. Oct. 21, 1927. Treating ores to remove undesired constituents. -Platinum concentrates are obtained from ores carrying also nickel, copper, and iron by first producing a sulphide matte; desulphurizing by roasting, with or without first Bessemerizing; reducing the roasted matte to produce a metal sponge, with or without a previous acid leach to remove the bulk of the copper and it may be some nickel and cobalt; and extraction of the sponge with dilute acid to dissolve nickel and iron and to leave the platinum group metals generally admixed with copper. The steps of roasting, leaching, reduction, and leaching may be repeated. Reduction may be effected by carbon in a muffle furnace, or by reducing gases, hydrogen, hydrocarbons, carbon monoxide, and alcohol vapour being instances in the Provisional Specification. In an example, coal gas is specified. Specification 296,744 is referred to.
Patent GB-479595-A (GB)
Title: Improvements in or relating to extensible centering and like supports
IPC: E04G11/56
Filed: 1937-10-15
Abstract: 479,595. Shuttering-support. VIGIER, W. DE, and LANDAUER, W. Oct. 15, 1937, No. 28103. [Class 20 (ii)] A telescopic support for shuttering comprises bent sheet-metal angle-section members, the free edges of which are shaped to stiffen the sections and are tied at intervals by transverse stiffeners. Each member is formed with parts 1, 2 disposed at right-angles to form an anglesection bar, and the free edges 3 of each sectionbar are curled to form stiffeners and mutual guiding portions for the overlapping sections. The members are stiffened by diagonally disposed stiffeners 4, those for the inner member being secured to the member by means of opposed rods 5 welded to the curled edges. In a modification, Fig. 5, one flange of the outer section-bar is formed with a right-angled auxiliary flange 6 to form a guide for the edge of the inner section-bar and the diagonal stiffeners are welded directly to the edges of the section-bars.
Patent GB-384392-A (GB)
Title: Improvements in the production of ammonium sulphate from coke oven gas and other gasefrom the distillation of coal
IPC: C01C1/244
Filed: 1932-06-22
Abstract: Ammonium sulphate is obtained from coal distillation gases such as coke oven gas, producer gas, and illuminating gas by passing the gases, when they have arrived at substantially normal temperature, into an aqueous suspension of an alkaline earth sulphate, separating the solid alkaline earth carbonate, and evaporating the liquor to crystallization.  Naturally occurring or chemically produced calcium sulphate may be used suspended in water or ammonium sulphate solution.  Specifications 13302/01, 18505/06, 29752/06, [all in Class 55, Gas manufacture], 9609/11, [Class 1 (ii), Inorganic compounds, other than &c.], and 273,103, [Class 55 (ii), Gas manufacture &c.], are referred to.
Patent GB-1080712-A (GB)
Title: Mounting and supporting baths
Inventor: MOSS GERALD FRANK GEORGE
IPC: A47K3/16
Filed: 1965-07-02
Abstract: 1,080,712. Mounting and supporting baths. PLASTICS (MANCHESTER) Ltd. July 4 1966 [July 2, 1965], No. 28123/65. Heading A4N. An apparatus for installing a bath comprises, a base (10) which has four wooden blocks (11) forming first locking means glued to its upper surface and a pair of U-shaped wooden cradles (12) fixed, or adapted to be fixed to a bath. Each block has a slot (14) in which is held a square nut (14A) having a central bore (14B) into which a bolt (15) is screwed. The bolt has a normal head (17) and also a nut levelling (18) screwed on the bolt and a locking nut (18A) which serves to lock the bolt to the cradle. The base of each cradle has grooves (19) in the undersurface to receive the bolt heads. A pair of flat metal angle plates (20) are screwed to the undersurface of the cradle so that opposing faces of the angle plates form a channel (21) for the bolt. The upper ends of the cradles are provided with slots (12A) located by wooden striplike projections (12B) said strips being attached to wooden rails (12C) which are bonded to the underside of the ledges of the bath. The bath may be provided with a seating board (13C). In another embodiment a pair of wooden guideways are attached to the base and the bolts are attached to the cradle. The supporting means may also be formed integrally with the bath.
Patent GB-251542-A (GB)
Title: Improved arrangement for cooling the stators of electrical machines
IPC: H02K5/20
Filed: 1925-11-09
Abstract: 251,542. Thyssen & Co. Akt.-Ges., Glaubitz, A., and Sameith, R. Nov. 9. 1925. Armatures, cooling.-In an armature having slots b at right-angles to the axis to form passages for cooling air, the winding slots are extended towards the axis to form longitudinal passages, which are continued across the transverse slots by T-shaped filling pieces m of non- conducting material. In the arrangement shown tne edges of the filling pieces m are turned over as shown.
Patent GB-632168-A (GB)
Title: Improvements in or relating to electrical circuits and electronic tubes employed therein
IPC: H04L5/24
Filed: 1946-09-23
Abstract: 632,168. Thermionic valves. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 23, 1946, No. 28409. Convention date, Nov. 27, 1945. [Class 39 (i)] [Also in Group XL (b)] In a gaseous discharge device in which the discharge is triggered by applying a positive potential to the control grid 12, Fig. 1, the cathode 11, control grid 12 and anode 10 being enclosed.in a box-like shield grid 13 having a window 15 for passage of the electrons, a rod-shaped auxiliary anode 16 is inserted between the control grid 12 and anode 10 ; the auxiliary anode is connected to a resistance 28, Fig. 2, and a normally open switch R1a is provided for connecting the main anode 10 through a relay coil M<1> ... M<6> to the positive end of the voltage source. A plurality, e.g. six (as shown) of these discharge devices G<1>-G<6> may be utilized in the circuit arrangement of Fig. 2, which acts as a distributer. Initially the tubes G<1>-G<6> are all biassed below cut-off by negative voltages applied to their control grids, the shield grids being positively biassed; an input signal of the form shown in Fig. 3 is applied across the resistance 25 and at the points 1, 3, 6 (Fig. 3) the shield grids will be driven so negative that none of the tubes G<1>-G<6> will ignite, even with a positive potential on their control grids, whereas at the signal peaks 2, 4, 5 there is no potential drop across the resistance 25 due to the signal, and the tubes G<1>-G<6> can be ignited by biassing their control grids positively. Positive pulses are applied to the control grids in succession from a sweep circuit arrangement comprising vacuum tubes V<0> ... V<7>, energized by the input signal, and each tube G<1> ... G<6> ignites or fails to ignite according to whether the shield grid potential is positive or negative due to the input signal shown in Fig. 3. Thus for the signal shown in Fig. 3, tubes G<1>, G<3>, G' are not ignited and tubes G<2>, G<4>, G<5> are ignited. The arcs of the ignited tubes extend initially between the cathodes and auxiliary anodes, but at the time the control grid of the tube G<6> is made positive a voltage wave from transformer T<5> ignites gas discharge tube G' and energizes relay R<1>, so closing contact R1a; as a result, relay R2 is energized and contact R2a is opened; this has the effect of transferring the arc from the auxiliary anodes of the tubes G<1>-G<6> to their main anodes. Means are also described for restoring the circuit to its original starting condition. Specification 632,165, [Group XL (b)], is referred to.
Patent GB-684577-A (GB)
Title: Process for separating alkenyl halide mixtures by distillation
IPC: C07C17/38
Filed: 1950-11-22
Abstract: A 2-alkenyl halide is separated from a contaminant 1-alkenyl halide by distillation in presence of an aliphatic saturated ketone having a boiling-point lower than or not substantially exceeding those of the alkenyl halides whereby a low boiling azeotrope containing the 1-alkenyl halide and the ketone is formed.  Many alkenyl chlorides, bromides and iodides are specified and they may be obtained by halogenation of an olefin or dehydrohalogenation of a dihalo aliphatic hydrocarbon.  Many ketones are also specified.  The 1-alkenyl halide and ketone may be separated by solvent extraction, extractive distillation, e.g. in presence of water or selective adsorption and the ketone may be recycled to the distillation zone. In examples: 2-methallyl chloride contaminated with isocrotyl chloride is subjected to distillation in presence of acetone.ALSO:A 2-alkenyl halide is separated from a 1-alkenyl halide by distillation in presence of an aliphatic saturated ketone having a boiling point lower than or not substantially exceeding those of the alkenyl halides whereby a low boiling azeotrope containing the 1-alkenyl halide and the ketone is formed.  Many alkenyl halides and ketones are specified.  The 1-alkenyl halide and ketone may be separated by solvent extraction, extractive distillation e.g. in presence of water or selective absorption and the ketone may be recycled to the distillation zone.  In examples 2-methallyl chloride contaminated with isocrotyl chloride is subjected to batch or continuous distillation in presence of acetone.
Patent GB-603737-A (GB)
Title: Improvements in or relating to the control of electric ventilating fans
IPC: F04D25/08
Filed: 1945-10-29
Abstract: 603,737. Fans. GENERAL ELECTRIC CO., Ltd., and WARD, L. G. Oct. 29, 1945, No. 28591. Drawings to Specification. [Class 110 (i)] [Also in Group XXXVII] Regulating or controlling.-The power supplied to drive a blade (or equivalent part) of an electric ventilating fan is periodically reduced, even to zero, and increased again at short intervals (e.g. every ten seconds) ; thus the blade or the like rotates, in effect, continuously, producing a pulsating but non-reversing stream of air. The periodic action is produced by a thermal electric switch in the circuit of an electric motor driving the fan blades, or alternatively by a clock-actuated switch.
Patent GB-603190-A (GB)
Title: Improvements in and relating to multiple element capacitors
IPC: H01G4/38
Filed: 1945-10-30
Abstract: 603,190. Condensers. STEPHAN, F. C. Oct. 30, 1945, No. 28726. [Class 37] Wound elements 1 are supported on a hollow support 3 of rectangular or square section by means passing through the support to the insulating cores 2 of the elements. In Fig. 1, the core is secured by a screw 4 which may be of the self-tapping or wood screw type. Part of the core 2 of reduced section may extend into the support 3. Bolts may be used instead of screws and an element may be mounted on each side of the support, both being held by a single bolt. Cores and support may be of resin-bonded fibrous material though metal is preferred for the support, in which case it may serve as a bus-bar. In Fig. 4, a wooden or fibre member 11 with enlarged head 14 extends through the core into the support 3 and is secured by a wood screw 13. The elements may be mounted on more than two sides of the supports. The free ends of the cores may be held in wooden battens.
Patent GB-704375-A (GB)
Title: Improvements in or relating to hay rakes for mounting on tractors
Inventor: BYWATER JAMES EDWARD
IPC: A01D76/00
Filed: 1951-12-07
Abstract: 704,375. Hay-rakes. FORD MOTOR CO., Ltd. July 17, 1952 [Dec. 7, 1951], No. 28755/51. Class 6 (3) A hay-rake for attachment to a tractor threelink system includes a stripping unit 12 which is connected to the top-link 1 so that upon lifting the rake bodily the stripping unit is moved down relatively to the tines 8. The rake comprises tines 8 pivoted on a transverse shaft 7 and resting on a second transverse shaft 9 which limits their downward pivotal movement. Triangular plates 3 welded to the shaft 7 carry at their apices pins 4 for the lower hitch-links and the ends of a bracket structure 2, 5, which is connected to the upper link 1. Additional plates 10 at the outer ends of the shafts 7 and 9 are also connected to the upper hitch-point by braces 11. The stripping unit comprises a frame 12 about the shaft 7 on bell-cranks 14 the opposite ends of which are linked by members 15 to an intermediate point on the upper link 1. Raising of the hitch links causes the stripping unit to move downwardly, to the dotted position, relative to the rake tines.
Patent GB-1187937-A (GB)
Title: A Pressing Tool.
IPC: B21K1/76
Filed: 1968-06-17
Abstract: 1,187,937. Upsetting. F. B. HATEBUR A.G. 17 June, 1968 [20 June, 1967], No. 28788/68. Heading B3H. A pressing tool 1 comprises an anvil body 5 having a fixed die 6 therein, a die carrier 12 axially slideable with respect to the anvil body and carrying a plurality of die jaws 18 on inclined guideways, the die jaws being slideable axially of the carrier so as to be urged radially inward by said guideways, an annular cage 13 surrounding said die jaws and having guide slots 30 to receive the die jaws and a locking device 14 controlled by the movement of said annular cage initially to lock the die carrier against axial displacement relative to said anvil body and subsequently to release said die carrier for axial displacement. The locking device shown in Fig. 1 comprises a disc in a circular bore in the die carrier having a shoe on one face and an eccentric pin on the opposite face which engages in an angled groove (31) in the annular member, Figs. 11b, 12b and 13b (not shown), the shoe engaging a slot (38) in the anvil body such that when the pin is at one end of the groove (31) the shoe is locked against axial movement along the slot, and becomes free to move when the pin has been moved by the angled portion of the groove by movement of the annular member. A second embodiment of the locking device employs balls or rolls in an aperture in the die carrier which can engage a radial slot (41) in the anvil body or a radial slot (42) in the annular member 13, Figs. 11a, 12a, 13a (not shown). Movement of the annular member is caused by the action of a ram 2 on the die jaws 18. Ejectors 3 and 4 are provided which are operable by the ram mechanism. An auxiliary return member (43), Figs. 11, 12, 13 (not shown), acting on one of the die jaws may be used to return the assembly to its starting position after pressing the workpiece 9.