baber/WOPTO huggingface dataset:
Patent GB-524918-A (GB)
Title: Improvements in the manufacture and production of butadiene
IPC: C07C5/333
Filed: 1938-06-13
Abstract: 524,918. Catalytic dehydrogenation. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.). June 13, 1938, Nos. 17540/38 and 12265/39. [Class 1 (i)] [Also in Group IV] Butadiene is prepared by the dehydrogenation of butylene by a process characterized in that a gaseous mixture of normal butylene and steam is passed at a temperature of 500‹- 700‹C. over a catalyst comprising more than 50 per cent. of zinc oxide together with one or more oxides or salts of the oxy acids of chromium, vanadium, molybdenum, uranium or tungsten. The amount of activating oxide used is preferably small such as from 10 per cent. down to 1 per cent. The catalysts are preferably free from iron. The mixture of butylene and steam should be led over the catalyst at a high velocity so that only a part of the butylene is reacted. The activating oxides may be used in various forms, chromium in the form of chromic oxide or chromic acid anhydride, or in the form of chromates or chromites and vanadium, molybdenum, uranium and tungsten in the form of vanadic, molybdic, uranic or tungstic acid anhydrides or in the form of salts of the corresponding acids. The catalysts are prepared by precipitating the activating oxides on the zinc oxide or by mixing zinc oxide with salts, preferably zinc salts of the activating oxides and then heating the mixture in hydrogen. In addition to zinc oxide, other basic oxides such as alkaline earth oxides may be present. The preferred starting material is beta-butylene or mixtures of normal butylenes with beta-butylene. In the following examples a steel tube the interior of which is lined with copper containing a small amount of manganese is used as the reactor (1) 20 parts by volume of alpha-butylene and 80 parts by volume of betabutylene diluted with six times the volume of steam is passed over a catalyst consisting of 90 per cent. zinc oxide and 10 per cent. chromium oxides with a contact time of 0.5 seconds, to give a 20 per cent. yield of butadiene. (2) Beta-butylene and steam is led at 600‹C. over a catalyst comprising 80 parts zinc oxide, 20 parts aluminium oxide and 10 parts calcium chromate as in example (1). (3) Beta-butylene and steam is passed over 60 parts zinc oxide, 20 parts aluminium oxide, and 10 parts calcium oxide impregnated with chromium nitrate and heated. (4) Beta-butylene and steam is passed over zinc oxide on which 1.5 per cent. molybdic acid amhydride has been precipitated. (5) Beta-butylene and steam is passed over 65 parts of zinc oxide and 30 parts of calcium aluminate impregnated with an amount of ammonium vanadate such that on heating the catalyst contains 5 per cent. of vanadium oxide. (6) Butylene and steam is passed over zinc oxide containing 5 per cent. of ammonium uranyl acetate. (7) Beta-butylene and steam is passed over a mixture of 95 per cent. zinc oxide and 5 per cent. chromium oxide.
Patent GB-717582-A (GB)
Title: Improvements in or relating to knitting needles for the production of knitted fabrics
IPC: D04B35/02
Filed: 1951-07-24
Abstract: 717,582. Knitting-machines. LINIGER, W. July 24, 1951 [Aug. 1, 1950], No. 17552/51. Class 74 (2). A machine-knitting needle has a tongue or latch 8, Fig. 2, or 9, 15, Fig. 4, pivoted at 7 between its ends at the forward extremity of the needle which is formed between that pivot and the needle shank with a recess 2, one end 10, 11, or 15 of the tongue being adapted to be engaged during a knitting operation so to move the tongue as to cause its other end 9 to close the recess, but being resiliently urged in such direction as normally to cause the end 9 to open the recess. In Fig. 2, step 20 engages an abutment 10 on the latch, as the needle is retracted, to rotate the latch to the closed position, against the action of a flat spring 12 which bears on a second abutment 11. In Fig. 4, the latch is rotated to the closed position by the pull of the thread on the surface 16, against the action of a spring 17. A stop on the needle tail limits the extent of reciprocation.
Patent GB-458425-A (GB)
Title: Improvements in or relating to grinding machines for hard materials
IPC: B24B41/047
Filed: 1935-06-19
Abstract: 458,425. Polishing marble &c. SPEED SURFACERS, Ltd., 727, Thames House, Millbank, London. June 19, 1935, No. 17639. Convention date, March 25. Addition to 413,555. [Class 60] The grinding-machine described in the parent Specification, is modified to adapt it for polishing by substituting for each ofthegrinding-elements carried by the shafts rotating on the inclined axes c, a plate d provided with three necked studs e spaced. 120‹ apart and carrying a flexible plate f of indiarubber, leather, &c. In the plate f engage three necked bolts g, interspaced with the studs e and secured to a housing h carrying the polishing element i of felt &c., the plate f enabling the element i to lie flat on the surface undergoing polishing. In a modification, Fig. 2, the housing h is secured by bolts k to a flexible plate provided with a socket part j<1> having internal recesses engaged by radial projections on a member l secured to the inclined shaft.
Patent GB-1004040-A (GB)
Title: Improvements in and relating to electrical connectors
IPC: H01R43/00
Filed: 1963-05-06
Abstract: A method of making a casing for an electrical connector (e.g a plug or socket) of which the inside is provided with an insulated coating applied in liquid form comprises standing a casing body on a flat plate, pouring in liquid insulating compound to the required level, draining, causing the liquid to solidify, e.g. by drying, then stoving.  The casing may be placed over a hole in the plate and the liquid introduced through the hole.  In examples, metal casings are coated with an epoxy resin, and with polyvinyl chloride applied over a polyurethane adhesive primer. The primer may be applied by brushing or by filling and draining, and any further coats of insulating compound after the first may be applied by brushing or spraying.
Patent GB-475975-A (GB)
Title: Improvements in and relating to potters' jolleys
IPC: B28B1/02
Filed: 1936-06-26
Abstract: 475,975. Potters' jolleys. BOULTON, Ltd., W., FARR, C., and BIRCHALL, F. A. June 26, 1936, No. 17751. [Class 87 (i)] In a potter's jolley, the tool 19 is attached to one or two plates 18 which embrace a block 13 slidable in a curved slot 11 in a counterweighted arm 10. The block 13 is operable by a hand lever 14 or other means against a spring 12 to move the tool into engagement with the outer parts of the work 21 after it has engaged the central part at 19a. Adjustable stops 23, 24 are provided for the lever 14. Specifications 16215 /08, [Class 87], and 255,734, [Class 87 (i)], are referred to.
Patent GB-474593-A (GB)
Title: Improvements relating to the manufacture of light sheets or slabs for building contruction
IPC: B28B5/02
Filed: 1937-12-18
Abstract: 474,593. Moulding sheets &c. by endless bands. DYCKERHOFF, E. Dec. 18, 1936, No. 17765/37. Convention date, Nov. 17, 1936. Divided application. [Class 87 (ii)] A machine for making sheets or slabs of fibrous material such as wood wool, coconut fibre, or asbestos, and a rapidly-setting binder such as gypsum, comprises travelling mould bands j, k, each formed of pivoted segments m carrying rollers o adapted to abut against fixed guide rails s, t, while freely-moving endless steel bands w, x are interposed between each mould band and the material which is supplied continuously in a mixed condition. The mould bands j, k are driven by the arms p of driving wheels adapted to engage the pivot pins n of the segments. The sheet produced can be cut into lengths by a saw or disc knife travelling in the direction of movement of the mould bands and cutting across them. '
Patent GB-233933-A (GB)
Title: Improvements in vehicle brakes
IPC: F16D51/66
Filed: 1924-07-25
Abstract: 233,933. Marks, E. C. R., (Studebaker Corporation). July 25, 1924. Actuated or applied by running axle or wheel; band; blocks acting on drums. - A brake for vehicles comprises an internal band 17, which is adapted to be expanded into engagement with the brake drum 10 by the circumferential movement of a shoe 24 when the latter is engaged with the drum by a lever 33 acting on it through a shaft 14, eccentric pin 28 and link 26. As the shoe is carried round with the drum, its forward end engages one of two brackets 19<a>, 19<b> carried at the ends of the band, which is therefore expanded, as the bracket not engaged by the shoe abuts against a stop 15. Spring-pressed plungers 29 which enter grooves in the member 15 are carried by the shoe, which limit its clearance and serve to hold it centrally with respect to the drum, whilst the clearance of the band is limited by brackets 22 and screws 23.
Patent GB-515289-A (GB)
Title: A method of synchronising two or more internal combustion engines
IPC: H02P5/46
Filed: 1938-06-15
Abstract: 515,289. Igniting systems for synchronising engines. TURNER, Ltd., S., and PLINT, A. F. June 15, 1938, Nos. 17826 and 26073. [Classes 7 (ii) and 7 (iv)] Synchronism of two or more engines is maintained by electrically connecting the insulated terminals of the interrupters of the low-tension windings of the ignition systems. The connection 3, 4 may be completed by a manually operated switch 5. In the case of a pair of marine engines, movement of the control levers to the " ahead " position permits the closure of the switch connecting the interrupters. The stem of the control lever may be provided with a cam, in the appropriate position of which the contact 41 is allowed to bridge spring contacts 52.
Patent GB-802836-A (GB)
Title: Improved fixing means for an electric switch
Inventor: PICKERING IAN JACK
IPC: H02B1/044
Filed: 1956-06-09
Abstract: 802,836. Switch cases. FALK STADELMANN & CO., Ltd. June 5, 1957 [June 9, 1956], No. 17902/56. Class 38 (5). A wall or wall-box mounting arrangement for a switch 3 comprises a bracket 6 to be screwed to the wall and having edges 6a on to which the switch is snapped by spring clips 4, the securing screws or rivets 5 of which fasten together the two parts 3b, 3c of the casing. Bosses 3d on the latter engage posi. tioning recesses 6b on the bracket.
Patent GB-468099-A (GB)
Title: Improvements in or relating to the production of textile articles
IPC: D06M17/02
Filed: 1936-06-29
Abstract: 468,099. Compound fabrics. BRITISH CELANESE, Ltd. June 29, 1936, No. 17981. Convention date, June 29, 1935. [Class 140] [Also in Group XVI] Shaped textile articles are formed by superimposing a number of fabrics at least one of which contains a derivative of cellulose, and simultaneously shaping and uniting the layers of the assembly with the aid of heat and pressure in the presence of an aqueous medium, e.g. water or steam, and a plasticizer for the cellulose derivative. The cellulose derivative fabric may be woven, knitted, braided, or netted from continuous yarns or filaments of a cellulose derivative or yarns spun from short staple lengths, or from a cellulose derivative in the form of artificial hair, bristles, or straw. Mixed fabrics containing also non-thermoplastic cotton, linen, regenerated cellulose, wool, or silk yarns, or fabrics woven from mixed yarns, may be employed. The assembly to be laminated and shaped may consist of two or more non- thermoplastic fabrics and one or more intermediate fabrics consisting wholly or largely of cellulose derivative, two or more fabrics containing a cellulose derivative and an intermediate non-thermoplastic fabric, or cellulose derivative fabrics only, e.g. one or both outer layers of woven fabric and inner layers of knitted fabric, in which case the plasticizer is applied to an inner layer or layers. The plasticizer may be added to the spinning solution from which the yarns are formed or may be applied as such or in solution in benzol, ethyl or methyl alcohol to the formed yarn or fabric. Water-soluble plasticizers e.g. diethyl or dimethyl tartrate or an acetin, or water-insoluble plasticizers e.g. dimethyl, diethyl, or dimethoxyethyl phthalate, or both, may be used. The plasticizer may be applied locally to produce local stiffening and adhesion. Pigments may be added to the cellulose derivative yarn. The invention may be used in the production of hats or hat linings, glove gauntlets, shoe parts, parts of brassieres, corsets &c., containers, lampshades, and luggage. The article may be finished with hems or taping around the edge. Cellulose formate, acetate, propionate, butyrate, ethyl or benzyl cellulose may be used. The Specification as open to inspection under Sect. 91 describes also the shaping and uniting of the layers in the presence of a plasticizer only, and states that the fabrics may be united before shaping. This subject-matter does not appear in the Specification as accepted.
Patent GB-1177387-A (GB)
Title: Improvements relating to Ingot Production by an Electroslag Process
Inventor: LEIGH FRANCIS SIMON JOSEPH
IPC: C22B9/18
Filed: 1967-04-19
Abstract: 1,177,387. Processes for casting composite ingots; moulds. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 19 April, 1968 [19 April, 1967], No. 17986/67. Heading B3F. To produce an ingot 14 having a radially varying compositional analysis (e.g. for making a steel roll with a wear-resisting outer zone and a relatively soft core or a 0À6% C outer zone and a 0À15% C core), an electroslag process employs a large central electrode 10 and at least one surrounding ring of smaller electrodes 11 of different composition all of which are melted. The central electrode 10 may be connected to a single phase supply and the outer electrodes 11 to a three-phase supply, the latter being connected so that rotation of the slag 12 and molten metal 13 is enhanced or inhibited. All the electrodes may be connected in parallel with a single-phase supply. Cooling water flows down the mould 1 from a channel or header ring 3 to a trough 4 on a water-cooled base 2 and having an inner trough 7 in which the water is circulated by a further flow from a pipe 8, as described in Specification 1,166,246. The slag may be melted in the mould or introduced when molten as described in Specification 1,150,201.
Patent GB-252566-A (GB)
Title: Improvements in and relating to advertising signs
IPC: G09F13/00
Filed: 1925-07-14
Abstract: 252,566. Craig, R. M. July 14, 1925. Reel and endless web apparatus. - In endless-band apparatus in which the band passes between a source of light and a facetted translucent screen a stationary or movable signbearing medium is located between the light and the screen, and a movable or stationary colour-imparting medium between the light and the sign-bearing medium. The screen is held in the front of a casing 1 having a hinged lid. The sign-bearing band 11 passes round rollers 13, 14, 15, 26, 27, 28 mounted on fixed vertical spindles so as to be readily removable for changing the band. The roller 15 is driven by a motor 34, and the roller 28 is retracted by an elastic band 31 to tension the band 11. The lamp 41 is in the motor circuit and by substituting for same a lamp of different resistance, the speed of the motor may be altered. The facets in the screen 44 may be pyramidal in shape, or be in the form of circular depressions 48, Fig. 11, arranged in staggered formation on opposite faces of the screen. A statinonary colour screen 50 is held by clips 51 behind the band 11. In a modification, opal glass is substituted for the colour screen, and a front screen painted with wavy colour stripes is used. In another form of the invention, stencelled letters on a stationary screen are interposed between a front facetted screen and a rear moving endless band bearing colours which may be in the form of stripes.
Patent GB-748091-A (GB)
Title: Improvements in reversible rotary tool holders for screw thread cutting tools
IPC: B23G1/46
Filed: 1953-06-30
Abstract: 748,091. Screw-cutting attachments. AKTIEBOLAGET SVENSKA PRECISIONSVERKTYG. June 30, 1953 [July 1, 1952], No. 18079/53. Class 83 (3). A reversible rotary, screw-thread cutting-tool holder comprises a driving member 16 fixed to a shaft 10, and a driven member 58 mounting a chuck 102 for the tool, and force-transmitting members therebetween which include a ball clutch 40 and coupling members 60, 62 for direct or forward drive, and ball members 78 and coupling members 84, 62 for reverse drive. The driven member during both forward and reverse drives is not subjected to any axial pressure from the driving member. The clutch comprises a number of balls 46 pressed by springs 30 to engage part-spherical recesses in a member 38, the spring force being adjustable by screwing a collar 22 relatively to member 16 The recesses are interconnected by shallow grooves 45. Members 60 consist of diametrically-opposite projections on the inner wall of member 38 to abut roller members 62 carried by the driven member or spindle 58. Members 84 consist of diametrically-opposite projections on the inner wall of a sleeve 70 having races 74, 76 thereon, the latter race being adjustable axially relatively to race 74. The balls 78 are carried by a rotationally-stationary part 80 and engage the races 74, 76 and races 82 in the wall of member 16, whereby forward rotation of the member 16 causes reverse rotation of sleeve 70. In cutting a thread, e.g. tapping a hole, the holder is moved down with the tool until said tool abuts the bottom of the hole. The clutch then audibly slips, the balls 46 running in the groove 45, and the operator raises shaft 10 and member 16, to cause disengagement of members 60, 62 and engagement of members 84, 62. The tap is thus drawn out of the hole and once out, a spring 100 restores the parts for forward drive. The collar 22 and member 16 may have an indicating mark and scale for varying the spring pressure. The part 80 is held from rotation by an arm 81.
Patent GB-552042-A (GB)
Title: Improvements in or relating to printing means
IPC: B41N1/12
Filed: 1941-06-16
Abstract: 552,042. Printing-surfaces; typewriters. NATIONAL CASH REGISTER CO. June 16, 1941, No. 18127/42. Convention date, June 21, 1940. Divided out of 550,023. [Classes 100 (ii) and 100 (iv)] A printing device comprises a resilient printing member 20 having discrete capillary pores extending from the rear surface to the printing surface which has the design cut in relief or intaglio. The printing member is mounted on an ink pad 24 supplied with ink by wicks 32 passing through a perforated plate 39 into an ink chamber 33. The whole structure may be mounted on a printing hammer for use in a machine.
Patent GB-631281-A (GB)
Title: Improvements in or relating to vises
IPC: B25B1/24
Filed: 1947-07-09
Abstract: 631,281. Vices. GRAND SPECIALTIES CO. July 9, 1947, No. 18134. Convention date, Nov. 30, 1945. [Class 61 (ii)] In a vice, the arrr 12A of the sliding jaw 13 is of inverted V. shape and slides within a similar shaped opening in the fixed jaw 11, the sides of the arm 12A terminating in bearing surfaces 32A which slide on hori. zontal surfaces in the fixed jaw. The clamp. ing screw 14 is rotat-  ably mounted but longitudinally fixed in the arm 12A and engages with the threaded arm of a releasable bell-crank-shaped nut 55 pivoted at 56 to projecting lugs on the fixed jaw and extending upwardly through the open base of the arm 12A. The arm 55A of the nut 55 is spring-urged into engagement with the screw and is released by pressing upon it. Bearings 48 on the inner surface of the arm 12A position the screw 14. The jaws of the vice are urged apart by a spring 60, the ends of which are connected to the rear of the arm 12A and to one of the webs 34 on the bearing surfaces in the fixed jaw. Various means for clamping the vice on a bench are described. The annular mounting portion 25, integral with the body of the vice, may be'rotatably supported on an annular flange on a base member 15 and clamped in any desired adjusted position by screws 16 which pass through a bar 66 and hold it against the lower surface of a flange on the base member. An additional pair of jaws for holding pipes may be mounted beneath the normal jaws.
Patent GB-515333-A (GB)
Title: Ball mills
IPC: B02C17/22
Filed: 1938-06-18
Abstract: 515,333. Ball mills. CAWOOD R. L. .June 18, 1938. No. 18171. Drawings to Specification. [Class 59] The drum of a ball mill is provided with lifting bars which gradually curve and merge into the wall of the drum in a general unbroken curve.
Patent GB-596055-A (GB)
Title: Improvements relating to guards for hydraulic presses
IPC: F16P3/04
Filed: 1945-07-17
Abstract: 596,055. Machinery guards. NORTON & CO., Ltd., J., and HANSFORD, S. July 17, 1945, No. 18248. [Class 80(iv)] To prevent actuation of a hydraulic press until the guard is closed the guard 3 has rigidly secured thereto a vertically depending bar 15 carrying a plate 17, 18, 19 providing an L-shaped slot 20, 21 through which the handle 1 of the pressure supply valve projects. When the guard is raised the slot 20 maintains the valve closed but when the guard is fully closed the handle 1 can be moved into the slot 21 to open the pressure supply valve and also lock the guard in the closed position. A further plate 22 secured to the bar 15 co-operates with the handle 2 of the exhaust valve so that this valve can only be closed when the guard is in the closed position.
Patent GB-1038176-A (GB)
Title: Razor-blades
Inventor: BAL PIERRE
IPC: B26B21/54
Filed: 1963-05-09
Abstract: The cutting edge of a razor blade is coated with a substantially monomolecular layer of a compound possessing a hydrophobic group and at least one polar group.  The compound may be a fatty acid, a salt thereof an amine, amide, alcohol or ketone, a phosphate, phosphonate, sulphate or sulphonate.  The compound may be applied in the molten state by dipping or spraying or in solution by dipping or by floating a solution of the compound on water and passing the blade therethrough, or by electro-de-position for example from a bath of an alkali metal soap using a voltage of 10 volts and a current of from 200-500 milliamperes, piles of blades being arranged as anodes between two coaxial cylindrical stainless steel cathodes.  When the compound is a fatty acid or derivative thereof or a phosphate, phosphonate, sulphate or sulphonate it is said to bond itself to the surface by chemical reaction, forming a metal soap with the metal surface. The remaining compounds are said to be bonded to the blade by adhesion forces.  In examples, stearic acid, sodium stearate and octadecyl phosphonate are referred to.ALSO:The cutting edge of a razor blade is coated with a substantially monomolecular layer of a compound possessing a hydrophobic group and at least one polar group. The compound may be a fatty acid, a salt thereof, an amine, amide, alcohol or ketone, a phosphate, phosphonate, sulphate or sulphonate. The compound may be applied in the molten state by dipping or spraying or in solution by dipping, or by floating a solution of the compound on water and passing the blade therethrough, or by electro-deposition.  When the compound is a fatty acid or derivative thereof or a phosphate, phosphonate, sulphate or sulphonate it is said to bond itself to the surface by chemical reaction, forming a metal soap with the metal surface.  The remaining compounds are said to be bonded to the blade by adhesion forces.  In Examples, stearic acid, sodium stearate, and octadecyl phosphonate are referred to.  A further coating of a thermoplastic material such as polythene may be applied by spraying a solution thereof followed by heating to fuse the coating.