baber/WOPTO huggingface dataset:
Patent GB-566197-A (GB)
Title: Improvements in or relating to surgical operating appliances
IPC: A61B17/322
Filed: 1943-02-03
Abstract: 566,197. Dermatomes. BISHOP, L. J. Feb. 3, 1943, No. 1802. [Class 81 (ii)] In a dermatome for cutting thin sheets of living skin from the body for use in skingrafting operations and comprising a partcylindrical surface A, Fig. 1, and a blade B spaced therefrom and mounted to rotate coaxially and also to move longitudinally, stop means is provided to limit the rotation of the blade at the end of the cut. The drum A is secured to a hand grip D by diametral supports D<1>, while the knife B is carried in a holder B<2> secured to arms C which telescope into guides O integral with cam housings L<1> secured to a hollow shaft E passing coaxially through the hand grip D. A collar is rigidly secured on the shaft E and is formed with a projection F, Fig. 2, which engages a key F<1> secured inside the handle D. The spacing of the blade B from the drum A is adjusted by means of cams L secured on a shaft R and each having an eccentric groove M, Fig. 4, into which projects a pin N on the end of the corresponding arm C. A setting wheel P is also provided on the shaft R. The ends of the blade B are inclined and the blade is secured in the holder B<2> by a co-operating block H and screw H<2>. Adjusting screws H<3>, H<4> engaging the back of the blade are also provided.
Patent GB-855793-A (GB)
Title: Improvements in and relating to the electrodeposition of copper
IPC: C25D3/40
Filed: 1957-01-17
Abstract: 855,793. Electrodepositing bright cyanide copper. HARSHAW CHEMICAL CO. Jan. 17, 1957 [Jan 19, 1956], No. 1820/57. Class 41 Bright copper is electrodeposited from a plating bath comprising an aqueous solution of copper cyanide and as a brightener a N-heterocyclic six-membered ring compound containing the group -C=N- where C and N are members | #Y. of the ring and Y is a nuclear thio substitnent, e.g. mercaptic or mercaptide group. Preferably the bath contains per litre 85 to 225 gms of copper cyanide and from 125 to 350 gms of potassium cyanide including 2À5 to 25 gms of this as free cyanide and 0À15 to 10 gms of brightener which may be dithioammelide, thioammeline, or 2:4:6-trimercaptotrianine. Sodium cyanide may be used instead of potassium cyanide and brighteners having as ring substitutents alkyl or acyl (up to six carbon atoms), aryl, alkoxy, fluorine, chlorine, nitro or other non-interfering groups while the preferred compounds include a C-amino group. Rochelle salt may be included as a buffer although this causes some loss of brightness but the preferred buffer is 35 to 75 gms/litre of potassium citrate, while to improve the colour of the deposit up to 1 gm/litre of methylcarboxycellulose may be included. To increase the maximum cathode current density from 1 to 20 gms/ litre of formaldehyde may be added. Typically the bath is used at a temperature of 130‹ to 180 ‹F. and a pH of 9 to 14 with a cathode current density of 10 to 60 amps/sq. ft., preferably employing interrupted D.C.
Patent GB-474068-A (GB)
Title: Improved method and apparatus for fusing and smelting metals
IPC: H05B6/20
Filed: 1936-01-21
Abstract: 474,068. Electric induction furnaces. RUSS, (nÚe DELMHORST), L. Jan. 21, 1936, No. 1942. Void. Convention date, Jan. 21, 1935. [Class 39 (iii)] Values for the most satisfactory voltage and current density to employ when treating a light metal in an induction furnace of the type wherein the metal is disposed in a closed channel encircling the primary winding are given together with the most desirable dimension between the winding and the channel. In the form shown, the thickness of the fireproof body h separating the trough c from the winding e surrounding the core d does not exceed a hundred millimetres and to make the cross-section of the trough correspond to the desired current density of 200-500 amperes per square inch without increasing its thickness, the axial dimension of the trough is increased. The secondary voltage should be within three and five and a half volts.
Patent GB-283968-A (GB)
Title: Improved manufacture of activated carbon
IPC: C01B31/08
Filed: 1928-01-20
Abstract: 283,968. Berl, E. Jan. 21, 1927, [Convention date]. Carbon.-Active carbon is obtained from water soluble and other acid tars, for example those obtained in the purification of petroleum and coal tar products with sulphuric acid. The tars are neutralized with potassium hydroxide, carbonate or sulphide, and after evaporation to dryness are activated by heating, e.g. to about 1000‹ C.. if desired in the presence of oxygen, carbon dioxide. steam, or mixtures thereof, e.g. waste gases containing steam. The carbon is cooled in an atmosphere of current of waste gas, nitrogen or other gas free from oxygen or by quenching with water. The material may then be freed from inorganic constituents, e.g. by washing with water. The material may finally he heated to 600-800 C. in an atmosphere containing little or no oxygen. The Specification as open to inspection under Sect. 91 (3) (a) comprises also neutralization of the tars by alkaline materials generallv and heating the mixture obtained to 300-400‹ C. to remove sulphur and compounds containing it, and neutral oils, before the activation. in which other oxidizing gases and vapour may also be employed. Dilute hydrochloric acid mav be used to neutralize the product. This subject-matter does not appear in the Specification as accepted.
Patent GB-255736-A (GB)
Title: Improvements in electro plating baths for simultaneously obtaining metallic depositsof various thicknesses
IPC: C25D5/16
Filed: 1926-01-25
Abstract: 255,736. Wurttembergische Metallwarenfabrik, Wolf, A., and Bauer, E. Jan. 25, 1926. Shields. - Perforated screens 2, 3 of insulating material arranged between the anodes 6 and an article 7 connected as cathode are provided with perforations 4 arranged to allow uniform plating of the article as a whole and perforations 4<1> more closely arranged or of greater individual size than the first to allow thickening of special parts 9. Alternatively, the material of the screen may be wholly removed opposite the parts to be thickened. The size and distribution of the perforations may be arranged so as to produce a deposit of continuously-variable thickness. A cylindrical article to be plated may be enclosed within a cylindrical perforated screen.
Patent GB-1286891-A (GB)
Title: Recovery of aromatic hydrocarbons from hydrocarbon mixtures by selective extraction and/or extractive distillation
IPC: B01D11/04
Filed: 1970-01-16
Abstract: 1286891 Extraction to separate aromatic hydrocarbons BADISCHE ANILIN- & SODAFABRIK AG 16 Jan 1970 [18 Jan 1969] 2220/70 Heading C5E Aromatic compounds are recovered from hydrocarbon feeds by extraction with a solvent containing (a) an N-alkylpyrrolidone together with (b) one or more compounds of the Formula I where Y is an alkylene or alkenylene group containing 2 or 3 carbon atoms or an o-phenylene group which can be partially hydrogenated, Z is an oxygen atom or two hydrogen atoms, and where R is an alkylene group of 2 to 12 carbon atoms. The solvent can contain 1-10 wt. per cent water and component (a) can be N-methylpyrrolidone and component (b) is suitably the N-hydroxyethyl derivative of pyrrolidone, maleimide, succinimide, glutarimide, phthalimide or of the imide of tetrahydrophthalic acid. Benzene, toluene, xylene, ethylbenzene, styrene and naphthalene can be separated from feeds such as straight-run gasolines, cracked gasolines, pyrolysis gasolines, low-temperature coking gasolines, reformed gasolines, diesel oils, gas oils and lubricating oils by batchwise or countercurrent liquid-liquid solvent extraction, countercurrent washing of vapours or extractive distillation. Fig. 1 illustrates a solvent extraction in which the feed enters the bottom of the column 1 and the extraction solvent is fed to the top of the column to produce a raffinate P and an extract phase which is removed from the bottom of the column. The extract is distilled at 3 to produce a stream of light hydrocarbons which is condensed at 4 and recycled to the bottom of the column 1, the extracting solvent which is removed from the bottom of the column 3 and recycled to the extraction, and an aromatic vapour stream which is washed at 5 with some of the condensed aromatic product. Fig. 2 (not shown) illustrates the separation of aromatics by countercurrent washing; the feed is vapourized at 7 and washed by a countercurrent of the liquid extraction solvent which is passed into the top of the column 6. The non-aromatic vapour P is condensed and part of the condensate is used to wash the non-aromatic vapour and recycled to the column 6. The extract containing the aromatics is distilled at 8 to provide a light hydrocarbon stream which is recycled to the washing column 6, recovered solvent which is recycled and an aromatic stream which is washed. In an example pure benzene is separated from a mixture of 50 parts by volume nheptane, 40 parts benzene and 10 parts cyclohexene by batchwise solvent extraction with a mixture of equal volumes of N-methylpyrrolidone and N-hydroxyethyl succinimide.
Patent GB-457629-A (GB)
Title: Improvements in or relating to connections or couplings for socket-pipes with bush-like packing bodies or rings
IPC: F16L21/03
Filed: 1936-01-23
Abstract: 457,629. Joint - making packing. BUDERUS'SCHE EISENWERKE, 54, Sophienstrasse, Wetzlar, Germany. Jan. 23, 1936, Nos. 2227, 2228, and 2229. Convention dates, Jan. 23, 1935, May 20, 1935, and May 21, 1935. [Class 122 (iii)] [See also Group XXVIII] A packing sleeve 3 has a hook portion 6 of hard material which engages the end of the spigot 1, and a softer resilient portion 4 of enlarged cross-section which is deformed and compressed between the socket and spigot, when the latter is pushed into the socket. The hook portion may have metal reinforcement. In a modification, the periphery of the sleeve slopes more abruptly towards the hook end, and the length of the sleeve from the centre of the enlargement to the outer end is about a quarter of the depth of the socket. In a further modification, the hook portion 6 engages the front of the socket, and the enlargement 4 is compressed in a groove 8, Fig. 5, in the socket.
Patent GB-137550-A (GB)
Title: Improvements in or relating to turbines or turbine compressors
IPC: F01D1/36
Filed: 1918-02-07
Abstract: 137,550. Hough, R. H. Feb. 7, 1918. Screw motors; operated by fluid friction; radiat-flow (unbladed) type; working-fluid supply.-A turbine, operated by fluid friction and adapted to act conversely as a compressor, comprises a rotor 3, Fig. III., formed of two cones 30, 31 of different pitch having a space between them divided by a number of similaaÀ tapering helical vanes 42. 43 only two of which are, shown in Fig. III.) into helical-spiral conduits 44 which progressively increase in cross-sectional area from the base towards the apex, and also progressively approach the axis. When operating as a turbine, fluid is supplied to the conduits 44 through stator nozzles 64, Figs. III. and VI., and discharged at the apex end 37, where the linear velocity is less rapid. The vanes 42, 43 may extend only partly across the space between the cones 30, 31, and may be formed on the outer cone, Fig. VIII., on the inner cone, Fig. IX., or on both, Fig. X. The fluid conduits 44 may take the form or flat-spiral passages 404. Fig. XI., increasing in cross-sectional area from the motive-fluid inlets 405 towards the axis. Fig. II. shows a multi-stage turbine, which may comprise five rotors 3 of the kind shown in Fig. III. connected in series, supplied with combustion products from a furnace 12 fed with compressed air by a multi-stage compressor of the same type, which may comprise four rotors 5, Fuel is supplied by a pump 16 to a nozzle 18 in the air-inlet pipe 13 of the furnace 12, the combustion products being led to the first turbine unit 3 through a pipe 21 and a stator member 4.
Patent GB-1120493-A (GB)
Title: Improvements in the singeing of hairs or bristles from animal carcasses
IPC: A22B5/08
Filed: 1967-01-16
Abstract: 1,120,493. Singeing carcasses. WOLVERINE WORLD WIDE Inc. 16 Jan., 1967 [7 Feb., 1966], No. 2283/67. Heading A2U. In a method and apparatus for singeing hairs or bristles from the carcasses of animals such as pigs, the carcasses are conveyed in succession, head downwards along a substantially horizontal path, concentrated flames are directed, from two opposite directions, against the head of each carcass for a pre-determined time, and upwardly and downwardly moving flames are directed against opposite sides of the body of the carcass, e.g. out of phase, so that flames on one side are moving upwards, whilst those on the other side are moving downwards. Each carcass H, Fig. 1, is slung by its hocks from a trolley 28 of an overhead, horizontal conveyer 18, and is carried between vertical, parallel frames 22 and 22<SP>1</SP> accommodating vertically movable carriages 40 and 40<SP>1</SP> carrying, respectively, burners 54, 54<SP>1</SP> for directing concentrated flames on to the head and neck of the carcass, and vertically reciprocating carriages 42, 42<SP>1</SP> carrying, respectively, burners 60, 60<SP>1</SP> for directing flames on to the body. Groups of fixed burners 17, 17<SP>1</SP> are preferably mounted, in the upper parts of said frames, to direct flames on to the hams of the carcass. Thus each carcass H first encounters flames from the lower head-singeing burners 54, 54<SP>1</SP>, then flames from the ham-singeing burners 17, 17<SP>1</SP>, and finally flames from the body-singeing burners 60, 60<SP>1</SP>. Each conveying trolley 28 actuates a switch 27, Fig. 2, which starts hydraulic or pneumatic mechanism, which moves the carriages 40, 40<SP>1</SP> upwards from a lowermost starting position, said carriages being connected by chains C 1 , C 2 . When the snout of the suspended carcass makes contact with the trigger plate of a controlling device 80 carried on the carriage 40, said mechanism is reversed to move the carriages 40, 40<SP>1</SP> downwards to their starting position, where the carriage 40 actuates another switch 103, which immobilizes the carriages 40, 40<SP>1</SP> until the next trolley 28 actuates the switch 27. The carriage 42 is reciprocated up and down by a hydraulic or pneumatic cylinder 50. The carriages 42, 42<SP>1</SP> are connected by chains C 3 , C 4 , so that when one carriage moves upwards the other moves downwards. Reversal of the carriages 42, 42<SP>1</SP> is effected when carriage 42 contacts an upper limit switch 105 or a corresponding lower limit switch controlling a valve (not shown) through which operating fluid is supplied to the cylinder 50.
Patent GB-123138-A (GB)
Title: Improvements in or relating to the Manufacture of Solid Indiarubber Tyres.
IPC: B29B17/02
Filed: 1918-02-08
Abstract: 123,138. Henley's Telegraph Works Co., W. T., Sutton, G., and Judge, E. E. Feb. 8, 1918. Rubber tyres, shaping edges of.-A machine for trimming a solid rubber tyre A (built up on a metal foundation band B) comprises a rotary chuck C and one or more profiled knives Q shaped to correspond with the finished section of the tyre and disposed to effect an oblique cut as shown. The knife-holder K is adjustable axially on the shaft D in guides L in a slide M which is adjustable on the pedestal N by means of the screw P. The pedestal is moved towards and from the work by a horizontal screw O. In operation, the knives are adjusted so that, in one cut, the unvulcanized t y r e is trimmed to a section just slightly larger than the cavity of the vulcanizing mould. Means may be provided for supplying water during the trimming operation.
Patent GB-778644-A (GB)
Title: Improvements in or relating to packing machinery
IPC: B65B35/20
Filed: 1956-01-24
Abstract: 778,644. Packaging-machines. HARRIS, R. W. and MOLINS MACHINE CO., Ltd. Jan. 24, 1956, No. 2315/56. Class 94(1). In a machine for making packets having a box-like lid hingedly connected to the back wall of a box-like body, e.g. as described in Specification 507,998, the packets P, Fig. 1, which have been folded to the condition of Fig. 6, e.g. by apparatus as described in Specification 508,466, are moved along a bed 14 between guides 15 by pushers 16 on an endless conveyer 17 while stripes of adhesive are applied to the lower faces of outwardly-extending panels 6 and 8 by gumming discs 19. Each packet is then fed by a reciprocating pusher device into a waiting pocket 11 of a wheel 12, similar to that described in Specification 593,866, which is rotated intermittently between fixed plates 13 formed with extensions 13a which fold down the panels 6, 8 against the panels 7, 9. The pusher device comprises elements mounted on slides 20, see also Figs. 2 and 3, which are reciprocated along guides 21 by linkage 22-29 operated by a cam 30, and is arranged to continue the forward feeding of a packet, at a slightly higher speed than that of the pushers 16, before the latter reach the end of the lower run of the conveyer 17. The wall 10 of the packet is engaged by a pair of pivoted pusher elements 32 movable outwardly against the action of springs 34 so that they may ride over the side walls of the packet during the rearward movement of the slides. The guides 21 are mounted on plates 36 whose inner side faces 37 form partial continuations of the guides 15. These faces extend only a short distance upwardly so as to leave room for the elements 32, but control members 38, fixed on the slides, extend alongside the inner panels 7 and 9 while the slides are moving forwardly. The inclined front ends 39 of these members constitute pushers engaging the rear edges of panels 9. The side faces 37 are recessed at 40 to allow the panels 9 to bend slightly outwardly. A further pair of pusher elements 41 are arranged to engage the upper part of the wall 10 and the rear edges of the panels 6 and are pivoted at 42 to enable them to ride over the packet during the rearward movement of the slides 20. Each element 41 carries a further pusher element 43 having an inclined face 44 engaging the rear edge of one of the panels 8, the associated panel 6 being bent downwardly by the weight of the element 43. Further control elements 45 are positioned at opposite sides of each pocket 11 to press the panels 9 into an upright position. After a packet has been moved fully into a pocket, the slides move rearwardly a short distance to provide clearance between the pusher elements and parts of the packet while the wheel 12 starts to move. The wheel carries the packet through nearly 360 degrees until the pocket registers with a camoperated ejector 46.
Patent GB-219248-A (GB)
Title: Improvements relating to the jacking up of vehicles
IPC: B60S9/06
Filed: 1924-01-29
Abstract: 219,248. Ryan, S. Jan. 29, 1924. Stands or supports.-Relates to a lifting apparatus in which a foot 9 is pivotally connected to the lower ends of links 5, 6, the upper ends of which are pivoted to nuts 3, 4 upon a right and left handed screw. Rollers or castors 10 on the foot allow bodily movement of the apparatus. The lower ends of the links are connected to the foot by a ball and socket connection. In a modification, the ball is made in two portions with a ball race between them to facilitate turning movements. The foot 9 and the links may be swung sideways about the screw and held in such position to give ground clearance.
Patent GB-464392-A (GB)
Title: Improvements in sparking plugs
IPC: H01T13/16
Filed: 1937-01-27
Abstract: 464,392. Sparking-plugs. SOC. FRANCAISE LA BOUGIE DOUBLE. Jan. 27, 1937, No. 2381. Convention date, Jan. 27, 1936. [Class 7 (iv)] The insulated central-electrode and the two-part casing form an invertible unit; when the terminals 3b, 12b, are worn they may be replaced by the terminals 3a, 12a, the casing terminal 12a being bent into sparking relationship with the insulated terminal 3a. The used terminal 12b is removed, or straightened to enter a groove in the cap 13, a skirt portion 17 of which insulates the high-tension conductors from those at earthed potential. Openings 9 in the hexagonal part 8 serve to ventilate and cool the interior of the plug.
Patent GB-886116-A (GB)
Title: Improvements in and relating to electrical protective relay systems
Inventor: WARRINGTO ALBERT RUSSELL VAN C
IPC: H02H3/38
Filed: 1957-01-23
Abstract: 886,116. Protective arrangements. ENGLISH ELECTRIC CO. Ltd. April 18, 1958 [Jan. 23, 1957], No. 2427/57. Class 38 (5). [Also in Group XL (c)]  A protective relay system includes a relative polarity or coincidence detector which detects the occurrence or duration of a particular combination of polarities as between two periodic signals derived from a protected circuit and comprises two series-connected transistors, one having its base potential governed by the polarity of one signal and the other having its base potential governed by the polarity of the other signal. Thus, in the arrangement shown, a comparator unit is energized from a voltage transformer 33 and a current transformer 34 and applies two signals el, e2 between the emitters and bases of transistors 23, 24. When these signals are simultaneously negative, both transductors conduct and the potential difference resulting from the current through a resistor 25 causes the operation of a trip relay 36 through a trigger unit 35. The relay 36 may be an electromagnetic relay, a cold cathode tube, a power transistor or a transductor. This arrangement may function as a directional impedance relay arrangement. To avoid incorrect operation due to D.C. components in the fault current, two coincidence detectors may be provided, one conducting for common positive polarities and the other for common negative polarities, Fig. 7 (not shown). A comparator unit for the latter arrangement is described, Fig. 10 (not shown). The Specification also sets out the theoretical considerations which determine the operation of the relay arrangements and refers to the use of the coincidence detector in differential protective arrangements.
Patent GB-538624-A (GB)
Title: Improvements in and relating to the manufacture of sponge or cellular rubber
IPC: B29C67/24
Filed: 1940-02-08
Abstract: 538,624. Sponge rubber. SCHIDROWITZ, P., and UNGAR. R. M. Feb. 8. 1940, No. 2428. [Class 70] Sponge or cellular rubber is made directly from aqueous rubber dispersions such as rubber latex by incorporating as an oxygen-generator to promote pore-formation, an organic compound or derivative of hydrogen peroxide, e.g. urea peroxide, which may be added as such, or as urea and concentrated hydrogen peroxide. There may be 4-8 parts of urea peroxide to 60 of dispersed rubber, e.g. as centrifugally concentrated latex. Other additives may include 2 to 6 parts of 50 per cent. magnesium hydrate aqueous gel as a setting agent, per 100 of rubber dispersion, 1 to 2 per cent of mineral oil, e.g. together with a little ammonia and casein to increase pore-dimensions, or glycerol to reduce pore-dimensions, sulphur or sulphur-generators, accelerators, activators, wetting-agents, stabilizers, anti-oxidants, pigments, dyes &c. Examples include zinc oxide, zinc dibutyldithiocarbamate &c. The mixture may be stirred, poured into a mould allowing escape of excess gas, heated, e.g. for 15 minutes at 100‹C. in an air oven, removed from the mould, heated in boiling water to complete vulcanization, cooled in water, squeezed to remove extraneous moisture and dried. Specifications 210,495 and 250,167, [both in Class 70], are referred to.