baber/WOPTO huggingface dataset:
Patent GB-239550-A (GB)
Title: Improvements in or relating to duplicating machines
IPC: B41L15/02
Filed: 1924-09-08
Abstract: 239,550. Hurwitz, J. B., Hurwitz, A. S., and Garfunkel, (nÚe Hurwitz), M., (trading as Hurwitz & Co., H.). Sept. 8, 1924, [Convention date]. Cylinder machines; inking-apparatus; tripping-arrangements.-A duplicating machine comprises two longitudinal members connected by a plate adapted to support the printing- block, and a carriage movable along the longitudinal members on antifriction rollers, and having mounted thereon a frame carrying an impression roller and an inking-roller, the frame being pivoted so that the inking-roller and the impression roller may be brought into engagement respectively with the printing-block and with a sheet of paper laid thereon. The inking-roller is in permanent contact with a distributing-roller reciprocating longitudinally. The printing-block is held by adjustable stops 7, 8 upon a base plate 3 connected to two longitudinal members 1 upon which travels a carriage 9 furnished with antifriction rollers 14, 15. A frame 17 pivoted upon a cross shaft 16 in the carriage supports an inking-roller 24, an ink-distributing roller 28, and an impression roller 22, a spring on the shaft 16 normally holding the frame against a rubber stop 32. One end of the shaft 27 of the distributing roller 28 is formed with a double helical screw thread co-operating with the stationary bearing of the shaft to cause the roller to reciprocate longitudinally as it is rotated. The frame 17 is provided with a handle 20 for reciprocating the carriage 9 and for depressing the impression roller into contact with the sheet. Towards the end of the printing stroke of the carriage, a roller 34 on the frame 17 rides on to an incline 35 and raises the roller 22 to prevent it engaging the stop 8. A second incline 36 prevents the depression of the roller 22 until it is clear of the stop 7. Rubber stops 37 on the ends of the members 1 limit the movement of the carriage 9.
Patent GB-1071638-A (GB)
Title: Improvements relating to light fittings
Inventor: WHITEHOUSE NORMAN
IPC: F21V17/00
Filed: 1963-06-06
Abstract: 1,071,638. Reflector constructors. GEO. WHITEHOUSE & CO. (BIRMINGHAM) Ltd. May 25, 1964 [June 6, 1963], No. 22489/63. Heading F4R. A light fitting comprises a frame consisting of two pairs of parallel channel-shaped members 6 connected by transverse straps 7 and a pair of reflectors 12 of thin card or plastics material coated with a reflective substance or surface treated so as to be reflective, engaged in the channel members 6. The straps 7 are arcuate at the parts supporting the reflectors and formed with intermediate inwardly spaced flat portions 10 for securing to a box containing the control gear for a tubular discharge lamp mounted on the box.
Patent GB-1474691-A (GB)
Title: Generation and use of  dinitrile oxides
IPC: C08G18/70
Filed: 1973-05-11
Abstract: 1474691 Cured tung oil IMPERIAL CHEMICAL INDUSTRIES Ltd 2 May 1974 [11 May 1973 26 June 1973 12 Nov 1973] 22582/73 30218/73 and 52380/73 Heading C5C [Also in Divisions C2 and C3] Tung oil is cured by painting a mixture of the oil dicyclopentadiene furoxan and methylene chloride or a metal substrate and heating the resulting film.
Patent GB-240632-A (GB)
Title: Improvements in, or relating to, files with expansible pockets
IPC: B42F7/08
Filed: 1924-09-24
Abstract: 240,632. Baker, G. H., and Walker & Co., Ltd., J. Sept. 24, 1924. Addition to 154,033. Covers.-One side l of the binder described in the parent Specification is provided with a flap j having a subsidiary flap l. The flaps act as a support for the binder in the open position while when closed the flap j covers the pockets g and the flap l co-operates with the other side c by means of tapes &c. to close the binder.
Patent GB-888045-A (GB)
Title: A process for the manufacture of lithium aluminium hydride
IPC: C01B6/00
Filed: 1960-06-29
Abstract: Lithium aluminium hydride is prepared by hydrogenating an alloy of lithium and aluminium under superatmospheric hydrogen pressure at above 80 DEG  C.  The hydrogen pressure is preferably 60 atmospheres to 100 atmospheres gauge and the temperature between 100 DEG  C. and 130 DEG  C.  The alloy, which preferably has a molar ratio of lithium to aluminium of 1:1, is desirably finely divided, for example, less than 10 microns.  The alloy may be comminuted at the same time as it is hydrogenated, for example by carrying out the hydrogenation in a rotating autoclave containing steel balls or rollers.  The reaction may be carried out in the presence of an inert organic solvent for the lithium aluminium hydride, preferably at least sufficient being present to dissolve all the hydride formed.  Suitable solvents include ether, methylal and tetrahydrofuran.
Patent GB-749850-A (GB)
Title: Improvements in cobalt molybdate catalysts
Inventor: BROOMHEAD CHARLES
IPC: B01J23/882
Filed: 1953-08-19
Abstract: Catalyst comprising the oxides of cobalt and molybdenum is prepared by mixing molybdenum oxide or hydrated oxide and an organic salt of cobalt with a support, and heating the mixture to decompose the organic salt.  When alumina is the support, heating in the range 450 DEG -650 DEG C. decomposes the organic salt and activates the alumina.  Other suitable supports are zirconia, titania, silica, thoria, and mixtures of alumina with titania, zirconia, or silica. Cobalt formate or oxalate may be used and in certain cases a basic salt is preferred.  In examples (1) cobalt formate, molybdic acid, and a 10 per cent alumina hydrogel are mixed together, and the product filtered off, dried and calcined, (2) cobalt formate, molybdic acid, and dried alumina hydrogel are mixed, with the addition of aluminium stearate if desired, and the mixture wetted and formed into pellets which are dried and calcined.  The catalysts are useful in the hydrocatalytic desulphurization of petroleum hydrocarbons, e.g. by the autofining process described in Specifications 654,152, 669,536 and 669,553.  In examples (3) and (4) an Iranian kerosine and and Iranian gas oil are treated.  According to the Provisional Specification, cobalt acetate may be used as the organic salt.
Patent GB-818318-A (GB)
Title: Method of sealing metal containers
IPC: B21D51/26
Filed: 1957-07-18
Abstract: 818,318. Induction heating. DOW CHEMICAL CO. July 18 ,1957 [July 30, 1956], No. 22826/57. Class 39(3) [Also in Groups XVII and XXII] An induction heater comprises a splitring 48, forming a single turn coil, supported by two plates 50, 52, serving as leads for the coil and having terminals 59a, 59 and being bolted together with insulating material 54 between them.
Patent GB-443343-A (GB)
Title: Improvements in and relating to glass envelopes for alkali vapour electrical discharge devices
IPC: C03C8/02
Filed: 1935-08-14
Abstract: 443,343. Glass manufacture. BRITISH THOMSON. HOUSTON CO., Ltd., Crown House, Aldwych, London.-(General Electric Co.; Schenectady, New York, U.S.A.) Aug. 14, 1935, No. 22929. [Class 56] A glass envelope for an electric discharge lamp is coated on its inner surface with a glaze which is resistant to hot alkali vapour and consists of sodium oxide, aluminium oxide, boric anhydride, and silicon oxide with calcium or barium oxide. The content of boric anhydride is 40-70 per cent, of silica 3-15 per cent, and of sodium oxide 4-11 per cent. 3-20 per cent of alumina and 3-10 per cent of calcium oxide may be included, and the calcium oxide may be replaced partly or wholly by barium oxide or magnesia. Specifications 351,245, 356,072, and 441,603 are referred to.
Patent GB-664468-A (GB)
Title: The production of 1-aralkyl-thiosemicarbazides
Filed: 1949-09-05
Abstract: 1-Aralkyl-thiosemicarbazides of the general formula <FORM:0664468/IV (b)/1> wherein R1 is a substituted or unsubstituted aromatic radical and R2 is hydrogen, a methyl-, ethyl-, or substituted or unsubstituted phenyl-radical or a carboxy group, are prepared by reducing thiosemicarbazones of the formula <FORM:0664468/IV (b)/2> The reduction may be effected by the action of metals of Groups I to III of the periodic system.  The products may then be acylated to compounds of the formula <FORM:0664468/IV (b)/3> where Ac is the residue of a mono- or polybasic acid.  In examples: (1) 1-benzyl-thiosemicarbazide is made by reducing benzaldehydethiosemicarbazone with sodium amalgam and is then converted to the acyl- or succinyl-derivative; I-(41-isopropylbenzyl)-thiosemicarbazide, 1-(41-methylbenzyl)-thiosemicarbazide and 1-(31,41 - dimethylbenzyl) - thiosemicarbazide are obtained in a similar manner; (2) propiophenonethiosemicarbazone is reduced similarly to 1-(a -phenylpropyl) - thiosemicarbazide and acetophenone-thiosemicarbazone is reduced to p  1-(a -phenylethyl) - thiosemicarbazide; (3) 4 - methoxybenzaldehyde - thiosemicarbazone is reduced to 1-(41-methoxybenzyl)-thiosemicarbazide which is then acylated by means of acetic anhydride, succinic anhydride or quinolinic anhydride, and similarly, 4-benzyloxybenzaldehyde - thiosemicarbazone is reduced to 1 - (41 - benzyloxybenzyl) - thiosemicarbazide.  In a similar manner the following are obtained: (4) 1 - (31,41 - dimethoxybenzyl) - thiosemicarbazide; (5) 1-(41-dimethylaminobenzyl)-thiosemicarbazide; (6) 1-(41-acetylaminobenzyl)-thiosemicarbazide; (7) 1-(31-carboxybenzyl)-thiosemicarbazide; (8) 1 - (41 - carboxybenzyl) - thiosemicarbazide; (9) 1-(41-methylmercaptobenzyl) - thiosemicarbazide and 1 - (41 - ethylsulphobenzyl) - thiosemicarbazide; (10) 1 - (41 - dimethylaminosulpho - benzyl) - thiosemicarbazide; (11) 1-benzyl-1-carboxy-thiosemicarbazide; and 1 - benzyl - thiosemicarbazide is obtained from benzaldehyde-thiosemicarbazone by reduction with (12) sodium in ethanol; (13) magnesium in methanol and aqueous ammonium chloride; (14) amalgamated aluminium in methanol; (15) amalgamated zinc dust in ethanol and ammonia; and (16) by an electrolytic process.
Patent GB-188430-A (GB)
Title: Improvements in circuit-closers for electrically operated alarm mechanisms of the thief or burglar type
IPC: B60R25/10
Filed: 1921-08-30
Abstract: 188,430. Wacker, G. W. Aug. 30, 1921. Gravity and inertia switches suitable for mounting on a motor vehicle and operating when tilted or vibrated so as to give an alarm by closing a bell or horn circuit when the vehicle is entered or moved by an unauthorized person comprise a container 10 in which is suspended on a threelink chain 18, to afford a universal joint, a bell frame 15 in which is suspended in turn a contact-arm 25 controlled by a spring 39 and having contacts 26, 27 co-operating with fixed adjustable contacts 28, 29 on the frame. The suspended frame 15 has a heavy disc 16 at its lower end and below the disc a weight 17 is mounted. The.whole frame may be lowered by means of the links 19, 21, 22 so that the weight 17 becomes immersed in a thick fluid, for example, rubber solution, whereby movement of the frame is prevented and the alarm put out of action if desired. The contact-member is loosely pivoted at 41 and provided with a weight 38 counterbalanced by the adjustable spring 39 so that the contact-member yields freely to tilting or vibration of the container. When tilted the frame engaged an internal flange 14 on the container and vibrates the contact-member to cause it to engage one of the fixed contacts.
Patent GB-1312322-A (GB)
Title: Combine harvesters
IPC: A01D41/16
Filed: 1970-05-13
Abstract: 1312322 Combine harvesters SPERRY RAND CORP 13 May 1970 [5 June 1969] 23073/70 Heading A1F A combine harvester comprises a detachable header unit 13 having at its upper rear end a transverse beam 19 and at its lower rear end a transverse, substantially L-shaped beam 20. Beam 19 is composed of an L-shaped piece 27 welded to a U-shaped piece 26, and between these are provided sleeves 34 which are aligned with bolt holes 44, 45. On crop-elevator housing 10 is provided a transverse, generally L- shaped in cross-section beam 28 with guide brackets 33 at the turned portion 28c of its forward end, and a bolt hole 43 which, when beams 19 and 28 are nested together (Fig. 1) with the assistance of the guide brackets 33 corresponds with holes 44, 45 through which bolt 35 can be secured. On the lower front of housing 10 is a substantially U-shaped beam 29 the leading face of which accepts a bolt 38 securing it to rear face of beam 20. Beam piece 26 has rearwardly facing guides 40 which are bevelled so that the widest part coacts with the ends of beam 28 to self centre the header unit as it approaches housing 10, as the combine is driven towards the header in the attachment process. Alternatively the ends of beam 28 may be bevelled with respect to the guides. Guide brackets 33 may alternatively comprise a single transverse guide member.
Patent GB-608608-A (GB)
Title: Improvements in or relating to tools for cleaning bores in objects
IPC: A24F9/06
Filed: 1945-09-07
Abstract: 608,608. Tobacco-pipe cleaners. SMITH, A. G. Sept. 7, 1945, No. 23086. [Class 130] [Also in Groups XXIII and XXVIII] A bore cleaning tool, particularly for use with tobacco pipes, has a blade adapted to be extended into the bore of the object to be cleaned, and a brush formed of absorbent material secured to and supported by the blade, the edges of which extend beyond the brush so as to scrape accumulations from the wall surrounding the bore and throw them into contact with the brush. A handle 1 may be provided and the blade 2 may have external serrations. Figs. 3 and 4 show the cross-sections near the tip and handle respectively; Figs. 2 and 4 show the brush. Figs. 5 and 6 show a modification in which the blade is flat and the brush 16 covers both sides of it. Figs. 23 and 24 show a form in which the blade has a concave recess accommodating part of the brush on each of its four sides. Various other modifications are described.
Patent GB-240443-A (GB)
Title: Improvements in or relating to sorting apparatus
IPC: B07B13/02
Filed: 1925-09-16
Abstract: 240,443. Herrmann, R. Sept. 26, 1924, [Convention date]. Separating by rotary pitted cylinder and other moving bodies with like surfaces.-In the production of cellular plates for sorting apparatus, the cells are formed in soft. iron or steel plates, which are thereafter subjected on the working side to a surface tempering treatmnt.
Patent GB-340293-A (GB)
Title: Improved process for the preparation of high-molecular hydrocarbons
IPC: C10G50/02
Filed: 1929-07-27
Abstract: Hydrocarbon oils of high molecular weight, suitable for use as lubricating oils, are prepared by condensing lower molecular unsaturated hydrocarbons such as tar or mineral oils or fractions thereof, in the presence of a complex acid made by mixing boric acid with an organic compound containing two or more carboxyl, carbonyl, or hydroxy groups attached to the same or adjacent carbon atoms, the temperature at which condensation is effected being lower than that at which decomposition of the initial or final products would occur. A brown coal tar fraction, which may be dissolved in saturated hydrocarbons, is heated and agitated, at atmospheric or higher pressure, with a mixture of oxalic and boric acids.  The solvent is then distilled off and the complex acid is separated by washing with water and decanting, or by distilling the oil.  The viscous oil thus produced is fractionated.  Oxalic acid may be replaced by glycerol, or by lactic, tartaric or citric acid.  The components of the complex acid may be added separately to the initial material, and the organic component may be pre-formed therein, for example by treatment with chromic acid to form polybasic acids.ALSO:Hydrocarbons of high molecular weight are prepared by condensing lower molecular unsaturated hydrocarbons, such as tar or mineral oils or fractions thereof, in the presence of a complex acid made by mixing boric acid with an organic compound containing two or more carboxyl, carbonyl or hydroxy groups attached to the same or adjacent carbon atoms, the temperature at which condensation is effected being lower than that at which decomposition of the initial or final products would occur. A brown coal tar fraction, which may be dissolved in saturated hydrocarbons, is heated and agitated, at atmospheric or higher pressure, with a mixture of boric and oxalic acids.  The solvent is then distilled off and the complex acid is separated by washing with water and decanting, or by distilling the oil.  The viscous oil thus produced is fractionated.  Oxalic acid may be replaced by glycerol, or by lactic, tartaric or citric acid.  The components of the complex acid may be added separately to the initial material, and the organic component may be pre-formed therein, for example by treatment with chromic acid to form polybasic acids.
Patent GB-171449-A (GB)
Title: Improvements in and relating to counterbalanced crank shafts
IPC: F16F15/28
Filed: 1920-08-06
Abstract: 171,449. White, A. E., (Park Drop Forge Co.). Aug. 6, 1920. Crank-shafts.-Relates to crank-shafts of highspeed engines on automobiles and aeroplanes &c., of the kind provided with balancing discs or weights shrunk on or otherwise secured so as to be concentric with the shaft, and comprises an arrangement wherein a balancing-ring provided with an integral counterweighting-arm is shrunk on to the crank part, interlocking engagement being provided between such parts to prevent relative movement. Forms of crank arms used in four-throw and six-throw crank-shafts are shown in Figs. 3, 4, and 5, the balancing-ring 30 in each case having an integral counterweighting-arm 31 with an engaging surface 35 preferably in the form of an obtuse V shrunk on to the correspondingly-shrunk crank part, such as shown at 17, 27, 14, which is gripped between the engaging surface 35 and a preferably similarly formed thin portion of the rim, such thin part being soldered or torch-welded to secure the parts permanently. To prevent lateral displacement, the surface 35 and the co-operating crank part are formed with V-shaped grooves and ribs as indicated at 36 in Fig. 6. The balancing-rings are passed over the shaft end into their respective positions, the inner surface of the rings being slightly inclined, if desired, to facilitate passing over the crank webs. The fan-shaped formation of the counter-weighting arms 31 is stated to increase the effectiveness of the balancing for increases or decreases of the normal speed.
Patent GB-971649-A (GB)
Title: Process for preparing non-volatile high molecular isocyanate solutions
IPC: C08G18/10
Filed: 1961-06-27
Abstract: A non-volatile high molecular organic isocyanate solution is manufactured by reacting a saturated aliphatic polyhydric alcohol with more than 1 mol. organic diisocyanate (b.p. below 300 DEG C.) selected from saturated aliphatic arylene and aryl-alkylene diisocyanates, per mol. of hydroxyl group in the alcohol, removing uncharged diisocyanate by liquid-liquid extraction at below the m.p. of said high molecular isocyanate with a mixed extractant consisting of Y saturated aliphatic or alicyclic hydrocarbons or mixtures thereof and X-acetic acid alkyl esters, alkyl carbonates, dialkylketones, dialkylethers, alkoxyalkyl acetates, chlorinated aliphatic hydrocarbons, wherein selected extractant X has a higher b.p. than selected extractant Y; Y is then removed by fractional distillation, with or without addition of further X to give the desired solution in extractant X.  Specification 840,550 and German Specifications 953,012 and 1,090,196 are referred to.
Patent GB-358638-A (GB)
Title: Improvements relating to the hot drawing of seamless tubes
IPC: B21C1/34
Filed: 1930-08-01
Abstract: 358,638. Cupping. HEIMBACH, J., 6, Schaferstrasse, and RHEINISCHE METALLWAAREN - UND MASCHINENFABRIK, 195, Ulmenstrasse, Derendorf, both in Dusseldorf, Germany. Aug. 1, 1930, No. 23249. Grant of Patent opposed. [Class 83 (iv).] The mandrel or mandrel shank of a tube-forming bench is guided between supports f<1>, f2 forming a hollow prism. A mandrel shank e is joined to a carrier d movable with a rack c and connected thereto by a web d<1>, a plate d<2>, and a dove-tail connection d<3>, Fig. 3. The bars f<1>, f<2>, are held in transversely adjustable brackets g, secured by clamping screws h, or the brackets may be adjustable in common by a longitudinal shaft engaging worm wheels on adjusting screws for the brackets. Similar guide members n, o, support the mandrel and shank as the operation proceeds.
Patent GB-798034-A (GB)
Title: Process for the production of electrodeposited metal coatings
IPC: C25D3/12
Filed: 1955-08-12
Abstract: 798,034. Electrodeposition of metals. DEHYDAG DEUTSCHE HYDRIERWERKE GES. Aug. 12, 1955 [Aug. 13, 1954], No. 23254/55. Addition to 762,257. Class 41. The process of the patent Specification is modified by the inclusion in acid plating baths as plating addition agents co-operating with the sulphonic acids and salts of said Specification of sulphonic acids G<SP>1</SP>-R<SP>1</SP>-SO 3 H or salts thereof where G<SP>1</SP> is halogen, a cyano- or a thiocyano-group and R<SP>1</SP> is a saturated divalent substituted or unsubstituted aliphatic, cycloaliphatic or aromatic hydrocarbon radical. The plating baths may be for copper, nickel, silver or zinc and deposits can be formed on iron, steel, zinc, brass, aluminium, or magnesium. Further brightening agents may be added such as polyhydroxy alcohols including sugars and ether-alcohols, di- or tri-alkanolamines, unsaturated alcohols such as butinediol, and salts of zinc, cadmium, or cobalt, while wetting agents may also be included such as watersoluble salts of alkyl sulphonic acids, alkyl arylsulphonic acids, and alkylsulphuric acid esters, and water-soluble ethylene oxide addition products of fatty alcohols and acids and organic amines. Specification 787,186 is referred to. Reference has been directed by the Comptroller to Specification 747,909, [Group VI].