baber/WOPTO huggingface dataset:
Patent GB-1338642-A (GB)
Title: Method for etching a workpiece
IPC: C23F1/04
Filed: 1971-01-15
Abstract: 1338642 Etching WAGGON-UND MASCHINENBAU AG 15 Jan 1971 [17 Jan 1970 22 Dec 1970] 2120/71 Heading B6J [Also in Division C7] A method of etching a metal or other workpiece comprises placing the workpiece in a container containing etching liquid and a neutral liquid, which liquids are immiscible and of different specific gravities so that one rests on the other, and moving the workpiece and the liquids relatively vertically so that the workpiece moves alternately into the two liquids. In one form, the container is in two parts separated by a vertical wall having a communicating passage in the lower portion, the heavier liquid being put into one part so as to use up in the other, into which the lighter liquid is poured. Preferably, the etching liquid is the lighter. In another form, two inert liquids 3, 3a are used, the liquid 3 being heavier and the liquid 3a lighter than the etching liquid 4. The liquid 3 is introduced into a separate container 13 and forced by a plate 15 through a flexible conduit 14 into the main container 12. Etching liquid is fed in through a pipe 16 and valve 17, and the lower surface of the etching liquid is moved vertically by raising and lowering the plate 15.
Patent GB-1139714-A (GB)
Title: Improvements in or relating to the continuous casting of metals
IPC: B22D11/045
Filed: 1967-01-16
Abstract: 1,139,714. Continuous casting-machines. A. WERTLI. 16 Jan., 1967 [31 March, 1966], No. 2244/67. Heading B3F. In the continuous casting of a metal strand 22 from a horizontal mould 4 surrounded by a fluid cooling device 1, 2, contact between the surfaces of the cooling device and mould is ensured by providing holes 7 in the cooling device walls that are connected via channels 10, 11 to a pressure reducing device which pulls the adjacent surfaces of the cooling device and mould together. The holes 7 and channels 10, 11 may be provided in a separate plate set between the cooling device and mould, in which case the holes 7 may extend right through the plate to ensure the pulling together of the cooling device, plate and mould. The ends of the holes 7 may be flared and run together in one direction to form surface grooves (16), (Figs, 1 and 2, not shown). A housing 20 may be arranged at the outlet end of the mould and nitrogen forced therein to prevent oxidation of a graphite mould and to percolate through the graphite walls into the reduced pressure channels 10, 11. By using the pressure reducing device the mould 4 may be constructed from separate parts e.g. a broad flat mould may be constructed of separate narrow parts across its width, or square or rod section moulds may be constructed of four separate parts, the separate parts being held in the cooling device by the suction effect. The mould may be made from a cermet material.
Patent GB-474436-A (GB)
Title: Improvements in or connected with the making of mortar-bound macadamised roads
IPC: E01C7/12
Filed: 1936-01-24
Abstract: A mix for use as a quick-setting mortar for macadamized roads consists of 2-5 per cent of bituminous material, 20-35 per cent of a filler such as calcined lime powder or powdered rock, and a cement. In preparing the mix, the filler is first mixed with an equal quantity of warm water and the bituminous material preferably in the form of an emulsion or liquefied by heat then added.  The mixture is dried and triturated and the resultant powder is then mixed with the cement.
Patent GB-613856-A (GB)
Title: Improvements in watt-meter type relays
IPC: H01H53/10
Filed: 1946-01-25
Abstract: 613,856. Electromagnetically-actuated valves. GENERAL ELECTRIC CO., Ltd., and FRIEDLANDER, E. S. Jan. 25, 1946, No. 2526. [Class 135] [Also in Groups XXXV and XXXVII] In an A.C. watt-meter type relay or like device a voltage coil 11 causes flux to flow in two parallel paths through the two pairs of pole pieces 12, 13 and 14, 15 and a series coil or coils 17, 18 diverts the flux so as to cause the movement of a two-pole armature ,19. The direction of the current in the coils 17, 18 is such as to increase the flux in poles 12, 15 and decrease it in poles 13, 14 and this causes the armature, in the form shown, to move from engagement with a stop or contact 26 into engagement with a contact 24. The armature is biassed to return by a spring 25 or just by the magnetic bias due to the arrangement shown and to increase the sensitivity even this may be partially compensated for by shaping the armature or pole pieces so that the average length of air gap diminishes as the armature moves into deflected position. For this purpose, the armature instead of having a cylindrical surface may be made up of laminae, some of which are cylindrical and some of spiral form. Alternatively, compensation may be effected by a dead-centre spring arrangement, Fig. 7 (not shown) or by a spring-pressed roller bearing on a non-cylindrical surface, Fig. 8. In this last Figure, an arm 49 fixed to the armature is coupled by a link 50 to the operating lever 51 of a butterfly valve 52 in a pipe 53 conveying hydraulic fluid.
Patent GB-757936-A (GB)
Title: Copper alloys
IPC: C22C9/08
Filed: 1954-01-27
Abstract: A bearing alloy consists of: Pb more than 2,5-40 per cent; Si 0,1-6 per cent; Cu the remainder.  The alloy may also contain: As or Sb 0,1-5 per cent; Ti and/or S 0,1-2 per cent; Al 0,1-5 per cent; Cd and/or Zn 0,1-10 per cent, provided that when Zn is the only optional constituent present the Pb content is greater than 7,5 per cent; one or more of Fe, Mn, Ni, Co 0,1-less than 5 per cent, provided that the Pb content is greater than 10 per cent unless Cd or Zn are also present.  When no Fe, Mn, Ni and Co is present in the alloy, it may also contain; P 0,01-5 per cent; either K or Na 0,01-1 per cent or Ca, Ba or Mg 0,01-2 per cent; Li 0,01-1 per cent, provided Cd or Zn are present; Sn 0,01-15 per cent, provided that at least one of Cd, Al, Na or As is present and that the Pb content is greater than 5 per cent.  The alloy may be heat treated by quenching from 300 DEG -900 DEG C. and ageing at 50 DEG -500 DEG C. for 1-30 hours.
Patent GB-1020223-A (GB)
Title: Oven
Inventor: VAUGHAN CHARLES MILTON
IPC: A21B1/46
Filed: 1963-01-21
Abstract: 1,020,223. Bakers' ovens. R. G. WILSON and D. E. WATSON. Jan. 21, 1963, No. 2579/63. Heading A2A. In a substantially closed oven A having two doors 15, the articles P to be baked, e.g. pies, are supported by trays C on a reel B and subjected to hot air issuing from outlets 43 in elongated ducts G supplied with hot air by one or more blowers D driven by an electric motor 39, which blowers draw air from the upper part of the oven chamber through insulated ducts 33, and push it down insulated tubes E, which are provided with heaters F, preferably electrical elements, and are connected, by collars 39b, to the ducts G. The reel is rotated by an electric motor 27 operating through a speed-reducing belt and pulley system. Each door 15 has a glass panel 15b. Thermostatic control of the heaters F is provided. The ducts G are fitted with baffles 42 to equalize the flow of air from the orifices 43, thereby providing a substantially uniform temperature throughout the oven chamber. The blowers D, the tubes E and the motors 27 and 39 are located in a compartment 10a.
Patent GB-512016-A (GB)
Title: Devices for trueing rifle barrels
IPC: B21D3/10
Filed: 1939-01-25
Abstract: 512,016. Straightening rifle barrels. SCHWEIZERISCHE INDUSTRIE-GES. Jan. 25, 1939, No. 2620. Convention date, Feb. 22, 1938. [Classes 83(ii) and 83(iv)] Power hammers.-In a machine for trueing rifle barrels, the operator views the barrel from a seat, not shown, and applies a straightening pressure by a screw operated, three point bender. The barrel is supported between end abutments 30 adjusted by a hand wheel 25 engaging right and left hand threads or by levers actuated by a pedal 44. The centre abutment 5 is actuated by a screw 10 engaging a flywheel 9 rotated by a hand-rail 11 or by a friction wheel 12 from an electromotor 18 When a pedal 15 is depressed levers 36, 38 are moved to actuate a clutch-lever 22. As the abutment moves the screw 10 rises and engages a lever 17 for throwing out the clutch. The flywheel, abutments, &c. are carried in a head 2 adjustable about the axis of the electromotor.
Patent GB-469432-A (GB)
Title: Improvements relating to the packing of cigarettes and other articles
IPC: B65B7/22
Filed: 1936-01-30
Abstract: 469,432. Wrapping-machines. HORGAN, G. D., and INDUSTRIAL MACHINERY CO., Ltd. Jan. 30, 1936, No. 2813. [Class 94 (i)] In the packeting of cigarettes and other articles in cartons of the slide and shell type, the tuck-in flap 11, Fig. 2, or flaps are first folded up about the crease 13 and then the end wall 10 is erected to cause a consequential movement of the flap 11 over the cigarettes, as shown in Fig. 3. One or both ends of the slide may be dealt with in this way. When the batches of cigarettes are provided with a partial foil wrapping, it is necessary before bending up the flap to separate the projecting end of the foil from the flap, on which it is initially disposed, to prevent crumpling. This is attained by bending the flap down by moving it past a tongue piece 22, Fig. 6, having an inclined wall 22a while the leading end 24 of a folding bar 23 disengages the foil and causes it to ride up inside the bar. Meanwhile, the flap 11 is engaged by a plough shaped folder 27 and turned over at the crease line 13 about a corner 36 on to a surface 26 at an angle of about 60‹ to the lower horizontal surface 25. The final turning up of the end wall 10 and flap 11 is effected by fixed plates with inclined surfaces. The folding elements may be mounted so as to be capable of adjustment with relation to a rotating turret carrying the slides. The turret may be driven as described in Specification 466,176. In modifications, the slide may be moved in a rectilinear path, or the slide may be stationary and the folders subjected to rotary, oscillatory or other movements. In another method of operation, the end wall may be partially bent up simultaneously with the erection of the flap.
Patent GB-750035-A (GB)
Title: Preparation of carbohydrate polymeric materials
IPC: C08B37/00
Filed: 1954-02-01
Abstract: In making a carbohydrate polymeric material, a starch conversion liquor having a dextrose equivalent between about 5 and 40 computed as a percentage on dry substance, is dehydrated and then polymerized, at temperatures not exceeding 200 DEG  C., e.g. between 90 DEG  and 200 DEG  C., and at a pH between about 1.5 and 4.5 determined on an aqueous 10 per cent solution, with an amount of formaldehyde or paraformaldehyde not exceeding 2 per cent computed as anhydrous formaldehyde on dry substance.  The formaldehyde may be added before or after dehydration.  The liquor may be dehydrated until its moisture content is below about 10 per cent, e.g. about 2 to 7 per cent.  An acidic polymerization catalyst such as hydrochloric acid, phosphoric acid, boric acid or aluminium chloride hexahydrate may be added before or after dehydration.  Water formed during polymerization may be removed continuously.  The liquor may be a conversion syrup obtained from maize, potatoes, rice, wheat, tapioca and grain sorghum.  Specification 684,038 is referred to.ALSO:Carbohydrate polymeric material made by dehydrating a starch conversion liquor and heat-polymerizing the residue in the presence of formaldehyde (see Group V), is used to stabilize colloids, e.g. suspensions of pigments.  Specification 684,038 [Group IV(b)], is referred to.ALSO:In making a carbohydrate polymeric material suitable for use as an adhesive, a thickening agent in printing gums, and as a size, a starch conversion liquor having a dextrose equivalent of about 5 to 40 computed as a percentage on dry substance, is dehydrated and then polymerized, at temperatures not exceeding 200 DEG C., e.g. between 90 DEG  and 200 DEG C. and at a pH between about 1.5 and 4.5 determined on an aqueous 10 per cent solution, with an amount of formaldehyde or paraformaldehyde not exceeding 2 per cent computed as anhydrous formaldehyde on dry substance.  The formaldehyde may be added before or after dehydration.  The liquor may be dehydrated until its moisture content is below about 10 per cent, e.g. about 2 to 7 per cent.  An acidic polymerization catalyst such as hydrochloric acid, phosphoric acid, boric acid or aluminium chloride hexahydrate may be added before or after dehydration.  Water formed during polymerization may be removed continuously.  The liquor may be a conversion syrup obtained from maize, potatoes, rice, wheat, tapioca and grain sorghum. Specification 684,038 is referred to.
Patent GB-113497-A (GB)
Title: Improvements in and relating to Movable Anchors for Motor Ploughs, Cultivators and the like.
Inventor: WELLS FREDERICK BRUTON
IPC: A01B3/72
Filed: 1917-03-01
Abstract: 113,497. Wells, F. B. March 1, 1917. Power cultivation of land.-A movable anchor for an agricultural machine of the type provided with a motor for the purpose of hauling the machine across a field by winding up cables attached to movable anchors situated on each side of the field is provided with a motor F, which drives through a clutch d, worm gear f, h, and pinions i, k, a winding-drum E, round which the cable G fixed to a dead anchor passes. By throwing in the clutch d, the drum E is rotated and the anchor carriage A is moved into position for the next traverse of the agricultural implement, which hauls itself along by winding up the cable G. The carriage A in its anchor position rests on disk wheels B, which dig into the ground. The carriage is also provided with road wheels D, which rotate on stub axles at the ends of arms m keyed to the axles H on which the disk wheels B rotate. These arms carry worm sectors m<1> meshing with worms n, which may be rotated to lift the wheels D from or to depress them into contact with the ground. For steering, the wheels B and the arms m at one end of the carriage are mounted on short stub axles H<1> instead of the continuous axle H. The stub axles are provided with vertical pivots H" mounted in bracket bearings L secured to the carriage frame. Arms o o<1> are secured to the pivots H<11> and connected to each other by a link p A rod q adapted to be moved backwards and forwards by the rotation of a screw r in a nut r<1>, is connected by a crank-arm to one of the pivots H<11>. For transport, the road wheels may be driven from the motor.
Patent GB-547843-A (GB)
Title: Ultra-fine wire-cloth screen for straining purposes, and method of producing the same
IPC: B01D39/12
Filed: 1941-03-06
Abstract: 547,843. Wire gauze. GLENFIELD & KENNEDY, Ltd., and BOUCHER, P. L. March 6, 1941. No. 3054. [Class 142 (iv)] [Also in Group I] An ultra-fine twill weave wire-cloth screen is produced by electro-plating a fine metal screen with another metal. The screen may be woven in plain or twill form, of comparatively soft metal, such as copper or bronze, and the deposited metal may be harder or less corrosive, e.g. of nickel or silver. The plating metal unites the warps and wefts of the screen, and reduces the sizes of the apertures by increasing the size of the wires. The apertures may be reduced in size by several hundreds per cent., and are formed by the process in stream-lined configuration. Specification 358,705, [Class 142], is referred to.
Patent GB-211675-A (GB)
Title: New and improved stopper
IPC: B65D39/00
Filed: 1923-02-01
Abstract: 211,675. Branford, C. A. Feb. 1, 1923. Closures competed by outs t a n d i n g packing-rings ; packing-rings for stoppers; materials, special, for packing rings.-A stopper for bottles &c. comprises a tapered core A of glass, wood, metal or other material impervious to liquids and recessed circumferentially throughout almost its entire length to receive a length of string or other jointing- material B which is wound spirally round the core and secured to it at each end by pegs C.
Patent GB-524403-A (GB)
Title: Lubricant distributor
IPC: F16N25/02
Filed: 1939-01-30
Abstract: 524,403. Forced-feed lubrication. REBS, A. Jan. 30, 1939, No. 3092. [Class 12 (iii)] Lubricant distributers in which distribution and feed of the lubricant is controlled by double slide pistons 1, 2, 3 having passages for the passing of lubricant and being in number half that of the lubricant points. In the position illustrated lubricant cannot pass to any of the points I, II, III, IV, V and VI but being forced along a<SP>1</SP> opens the valve R<SP>1</SP> and pushes piston 2 to the right so that lubricant is forced through valve R<SP>2</SP> to point I. At the same time a, is made to open to b, and point II to c, so that lubricant can now push piston 3 to the right and point II can be supplied. Similarly for piston 1 and point III but now the piston moves to the left and opens the way for lubricant from a to enter c and force piston 2 to the left. This process continues till finally piston 1 is pressed to the right to feed point VI.
Patent GB-451230-A (GB)
Title: An electrical signalling, indicating and telephoning system and apparatus therefor
IPC: H04M11/02
Filed: 1935-01-31
Abstract: 451,230. Electric signalling systems. STEPHAM, J., 26, Kingsbury Green Parade, Edgware, Middlesex, and STILES, H. E., Melbourne House, Aldwych, London. Jan. 31, 1935, No. 3222. [Class 40 (i)] [See also Group XXXIX] In a signalling system comprising a central station provided with one or more lamp indicators which in response to operation of a switch by the attendant give " enter," " engaged " or " out " indications according to the position of a switch set by the occupier of a room, telephone facilities are also provided. The system is applicable to a clerk or attendant serving a block of offices, or to hotels. In the system shown, the equipment enclosed in rectangles 4, 6 is situated in an attendant's room and comprises three lamps 13-15 indicating " enter " " engaged," " out," and a bank of lamps 24 and keys 23 corresponding to the various offices 1-3 which have switches 31 adapted to be set by the occupiers to " enter " &c. positions. The attendant on pressing a key 23 receives an indication on lamps 13-15 of the position of the corresponding switch and he may then call the desired station by operating key 19 to operate buzzer or lamp 27. If the occupant of the office is out or engaged, the operation of 23 is without effect at the office, but if switch 31 is set at " enter," buzzer 27 operates without the further operation of key 19. The occupant of an office may call the attendant by operating switch 37 which lights the corresponding lamp 24 at the central office. If the attendant has depressed the corresponding key 23, closure of switch 37 by the occupant also lights the enter lamp 13 and operates buzzer 53. The attendant's key 23 and occupant's switch 37 together with the visual and audible signal devices provide means for code signalling between occupant and attendant, e.g. when telephonic communication is desired, such communication being effected by removing the receivers 5, 8 in the usual manner, the occupant's switch 31 being in the enter or engaged position.
Patent GB-562361-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/224
Filed: 1943-03-01
Abstract: 562,361. Condensers. SPORING, P. A., JOHNSON, C. P., and TELEGRAPH CONDENSER CO., Ltd. March 1, 1943, No. 3292. Addition to 534,507. [Class 37] A condenser casing is made in two halves 1, each of cup-like form, their rims being.held together in a fluid-tight manner with the intervention of a cork &c. gasket 3. Preferably rims 2 are gripped by a metal band 4 flanged over.
Patent GB-939161-A (GB)
Title: Improvements in or relating to the unwrapping or to the unwrapping and dispensing offilm sheets, and apparatus therefor
IPC: G03B42/04
Filed: 1960-01-29
Abstract: 939,161. Automatic dispensing of films. GEVAERT PHOTO-PRODUCTEN N.V. Jan. 29, 1960 [Jan. 30, 1959], No. 3327/60. Class 98 (1). In a device for dispensing films each folded in a wrapper, the films are ejected edgewise one by one through an opening in the holder, the arrangement being such that the wrapping flexes downwards under gravity more than the film, being less stiff, the film and wrapping thus passing into sepa- -rate guideways and so being separated. As shown, a stack of paperwrapped radiographic films 26 lie in a light-tight holder 1. Each film 24 is wrapped in a folder 25a, 25b. The lowermost film rests against endless chains 29 passing round rollers 32, 33. Across the chains is a cross-piece 31, which engages against the rear edge of the film, and pushes it through an opening 3 into a discharge shoot 4 which is mounted in light-tight connection with the holder 1. A closure slide 38 enables the two to be separated. As the front edge of the film becomes supported, the lower part 25b of the wrapper, being less stiff than the actual film 24, flexes more under gravity, as shown. An intermediate wall 9 divides the shoot into two separate parts, and the positioning is such that the film passes along path 36 into the upper part, and the wrapper passes along path 37 into the lower part. Here it is gripped between rollers 10, 11 which pull the wrapper completely away from the film. The film may then pass into an automatic casette-loading device as described in Specification 939,162.
Patent GB-541360-A (GB)
Title: Improvements in or relating to the production of ether-alcohols
IPC: C07C43/02
Filed: 1940-02-23
Abstract: 541,360. Ether-alcohols. DU PONT DE NEMOURS & CO., E. 1. Feb. 23, 1940, No. 3439. Convention date, Feb. 24, 1939. [Class 2(iii)] Ether-alcohols are produced by the catalytic hydrogenation of bodies of the formula R | O | R 1 -C-COOR 3 , where R is alkyl, aralkyl or | R 2  aryl or alkoxy methylene or alkoxy alkylidene, R 1  is alkyl, aralkyl or aryl, R 2  is hydrogen or alkyl, aralkyl or aryl or alkoxy- or hydroxymethylene or alkylidene, and R  3  is hydrogen or alkyl. These bodies may be made by hydrogenating alkyl formyl alkoxy acetates as described in Specification or by re-acting glycollic acid with dialkyl formals as described in Specifications 538,909 and 541,358. The reactions may be effected in an autoclave or the reagents may be passed over a 'granular catalyst. In examples : (1) glycerol #-methyl ether is produced from the α-methyl ether of methyl glycerate using a copper chromite on kieselguhr catalyst and 600 atmospheres pressure ; (2) glycerol #-methoxy-methyl ether is produced from the α-methoxy-methyl ether of methyl glycerate ; (3) (methoxy-methoxy)- ethanol is produced from methyl (methoxymethoxy) acetate ; (4) ethylene glycol isobutyl ether is produced from isobutyl isobutoxy acetate. The Specification as open to inspection under Sect. 91 includes the use as initial compounds of " related heterocyclic compounds," such as 2-carboxymethyl-1-3-dioxolane, which yield the corresponding alcohols. This subject-matter does not appear in the Specification as accepted.
Patent GB-879587-A (GB)
Title: Pigment dyestuff preparations for colouring synthetic resins and rubbers
IPC: C08J3/22
Filed: 1959-01-30
Abstract: 879,587. Colouring resins or rubbers. FARBWERKE HOECHST A.G. Jan. 30, 1959 [Jan. 30, 1958], No. 3475/59. Classes 2(6) and 70. A dry preparation for colouring synthetic resins (e.g. polyvinyl chloride, polyethylene or polystyrene) or synthetic or natural rubbers comprises a pigment dyestuff and polypropylene as carrier therefor. Optional ingredients are extenders and plasticizers, e.g. aluminium stearate, paraffin wax, montan wax acid, oxyethylated lauryl ester of orthophosphoric acid, oxyethylated alkyl phenol and colophony. The examples illustrate the use of azo dyestuffs and dyestuffs derived from perylene tetracarboxylic acid. A diluent may be used in forming the dyestuff/ polypropylene concentrate.