baber/WOPTO huggingface dataset:
Patent GB-600226-A (GB)
Title: A driving gear for a slide-valve of a piston engine
IPC: F01L5/14
Filed: 1945-10-19
Abstract: 600,226. Valve gear for fluid-pressure engines. HATTINK, W. A. Oct. 19, 1945, No. 27586. Convention date, May 24, 1943. [Class 22 (ii)] In a driving gear for a slide valve of a piston engine which controls the admission, or both the admission and the exhaust, for only one end of a cylinder and is reciprocated directly by means of a cam a1 or through the intermediary of one or more transmission elements, the contact point with or on the cam travels continuously along the periphery of the cam. A roller b may co-operate with the cam. The cam surface is shaped in such a manner and the slide valve is so arranged with respect to the cam that with the extreme position of the slide valve corresponding to completely opened admission port the contact point with or on the cam is nearest to the axis of the cam-shaft, and with the other extreme position of the slide valve corresponding to completely closed admission port if the slide valve only controls the admission, or to completely opened exhaust port if the slide valve also controls the exhaust, the contact point on the cam is most remote from the axis of the cam-shaft. The cam may be made adjustable by axial displacement.
Patent GB-1167475-A (GB)
Title: Improvements in and relating to Photocopiers
IPC: G03G15/26
Filed: 1968-06-11
Abstract: 1,167,475. Photo-copying apparatus. DENNISON MFG. CO. Ltd. June 11, 1968 [June 22, 1967], No.27659/68. Headings G2A and G2H. An electrostatic projection printer comprises a record window 1; an exposure window 2; a lens 3 and mirror 6 for projecting an image of a record R along a path 4 on to a charged sheet S of photosensitive material cut from a web M; a reading window 22; and an optical system for projecting an image of the record R on to the reading window, the system including a lens 23 and reflector 24 and an actuator lever 35 for moving the members 23, 24 into their operative position. A record R is placed in the window 1 and lever 35 is moved to the solid line position of Fig. 3, thereby pivoting the members 23, 24 into the path of the image, and also changes over a switch 39 to cut out feeding of the web. If the record is transparent a slide 41 carrying a lamp 42 is pulled out to the dotted line-position of Fig. 2. If the record is transparent lights 44, 46 are used. An enlarged image of the record R e. g. an array of microfilm frames, is projected on to the window, and the desired portion thereof selected and accurately positioned in the printing position. The lever 35 is released and a spring 38 snaps the optical viewing system back to its inoperative position, the switch 39 being changed over to allow printing to take place. A switch 21 is closed momentarily to initiate a printing cycle in which the web M is advanced, cut off by cutters 9, charged by a corona discharge device 10, exposed, developed in a tray 14, dried at a station 19 and then passed to a delivery station.
Patent GB-1078447-A (GB)
Title: Elastic golf ball winding thread
Inventor: KNIGHT KENNETH WILLIAM
IPC: B29D99/00
Filed: 1966-06-21
Abstract: Elastic golf ball winding thread comprises the vulcanized product consisting essentially of a blend of natural rubber and synthetic cis-1,4-polyisoprenes, the synthetic rubber being present in proportions from 30 to 85% by weight and the free sulphur content of the vulcanized product being less than 1% by weight.  The threads are prepared by vulcanizing a mixture of natural rubber and synthetic cis-1,4-polyisoprene containing from 30% to 85% by weight of the synthetic rubber with less than 3% by weight of elemental sulphur, the threads being unpicked.
Patent GB-503779-A (GB)
Title: Improvements in and relating to machines for sharpening metal strips
IPC: B24B3/48
Filed: 1937-10-12
Abstract: 503,779. Sharpening metal strip. STEINER, L. Oct. 12, 1937, No. 27721. [Class 60] A machine for sharpening the edges of metal strip, intended for making razor blades, comprises two grinding, polishing, honing or stropping rolls 16, 17, which may have interengaging helical surfaces, operating one on each side of an edge of the strip 26 which is drawn through the channel 21 between the rollers and is prevented from lateral movement by peripherally grooved rollers 28, which may be mounted on frames 29 guided between rails 30, 31 carried by crossbeams 33, pivoted at 34 to adjustable blocks 35 and adjustable about the pivots by screws 38 ; the frames 29 are formed as containers 45 for lead grains &c. to load the strip. The rollers 28, which may have shallow V-shaped grooves to engage an unground edge of the strip or deeper grooves to engage the sides of a ground edge, may be carried by bolts slidable vertically in a rail and loaded by weights, or they may be carried by pivoted arms loaded by lead grains or by springs; for treating a strip with indentations in the edges, three rollers may be carried by the frames 29 and be spaced so that at least two rollers engage the edge between indentations. In a modification, Fig. 11, no grooved rollers are used, the strip 26d being engaged by grooved projections 51 on the links 47 of a chain passing over pulleys 48, the links being pressed down by loaded rollers 52 mounted as described above for the rollers 28 ; each link may have two grooved projections, or may have the groove formed in the body of the link itself, and the chain moves between lateral guide rails.
Patent GB-224712-A (GB)
Title: Improvements relating to double barrel drop down guns
IPC: F41A15/06
Filed: 1923-11-05
Abstract: 224,712. Baker, W. Nov. 5, 1923. Breech actions, drop-down barrel. - Selective ejector mechanism for under-and-over guns comprises, for each barrel, a sliding extractor b, a pivoted roll-over hammer d and its spring f, and a pivoted abutment i, in the body, which when the firing-hammer has fallen, is advanced by a sliding rod k to such a position that when the gun is opened the ejector hammer is moved past the dead-centre to cause ejection. The sliding rod k is held in its advanced position by a spring bolt l as soon as the opening movement commences. When the firing hammer has not fallen, the ejector hammer is turned only a limited amount to causeinitial extraction.
Patent GB-536415-A (GB)
Title: Improvements in or relating to the manufacture of substituted arylamines
IPC: C07C213/02
Filed: 1939-10-13
Abstract: 536,415. Substituted arylamines. DU PONT DE NEMOURS & CO., E. I. Oct. 13, 1939, No. 27856. Convention date, Oct. 13, 1938. [Class 2 (iii)] [Also in Group III] Substituted arylamines are made by catalytic hydrogenation of an arylnitro compound in the liquid phase in the presence of an excess of a strong acid. The hydrogenation is preferably effected at temperatures between 100‹ and 155‹C. and under pressures of 400 to 500 lbs. per sq. inch. In the presence of comparatively dilute acids, the products are chiefly aminophenols, but in the case of p-nitrotoluene, aminobenzyl alcohol is formed, which may be condensed with unreduced p-nitrotoluene to form p-aminophenyl -m-nitro-o-tolylmethane. m- Nitrocinnamic acid yields aminocoumarin. In the presence of concentrated hydrochloric acid, chloramino compounds are formed, while if the hydrogenation is effected in sulphuric acid of over 60 per cent. concentration, an arylamine sulphonic acid is formed. In examples (1) p-nitrophenol is obtained (together with aniline) by hydrogenating nitrobenzene in the presence of dilute sulphuric, hydrochloric, phosphoric, p-toluene sulphonic acid or trifluoracetic acid ; the use of various catalysts is exemplified ; (2) 3-methyl-4-aminophenol is obtained from o-nitrotoluene with a palladium catalyst in sulphuric acid ; (3) m-chlor-paminophenol is obtained from o-nitrochlorbenzene, using a molybdenum catalyst ; (4) 4- chlor-2- methylaniline is obtained from onitrotoluene using a platinum catalyst in concentrated hydrochloric acid ; (5) p-chloraniline is similarly obtained from nitrobenzene ; (6) 4- amino-resorcinol is obtained from o-nitrophenol; (7) 5-amino-salicylic acid is obtained from m-nitrobenzoic acid ; (8) 4-aminoresorcinol-3- methylether is obtained from o-nitroanisole ; (9) m-aminophenol-o-sulphonic acid from mnitrobenzenesulphonic acid ; and (10) 1-amino- 4-naphthol from α-nitro-naphthalene. The preparation of catalysts from ammonium sulphomolybdate, and of a cobalt catalyst from finelv divided metallic cobalt and sulphuretted hydrogen in benzene solution, is described. Specification 493,960 is referred to.
Patent GB-470053-A (GB)
Title: Improvements in fabric take-up mechanisms for flat knitting machines
IPC: D04B15/88
Filed: 1936-10-14
Abstract: 470,053. Knitting-machines. KNITTING MACHINES CORPORATION. Oct. 14, 1936, No. 27901. Convention date, Nov. 9, 1935. [Class 74 (ii)] Fabric take-up devices.-The take-up rolls 10 of a flat knitting-machine are made much larger than usual, from 3 to 6 inches diameter, and are driven by a weighted band 28 acting on a pulley 18 of smaller diameter than the rolls. The welt wires 42 are grooved at each end 60 to engage the snap hooks 40 of the elements 46 which connect the ends of the fabrics to be knitted with the take-up rolls. These elements are springs or rubber tubes which are resilient throughout the whole of their length, but the extension is limited by internal chains &c. 52. The elements 46 are accommodated in grooves 38 in the rolls 10. Specification 456,145 is referred to'.
Patent GB-1351468-A (GB)
Title: Box for packaging a reel of cinematograph film magnetic tape or the like
IPC: G11B23/027
Filed: 1971-06-15
Abstract: 1351468 Stud and socket fastenings PAL POSSO 15 June 1971 [23 June 1970 30 March 1971] 27903/71 Heading E2B A box for the packaging of a reel comprises a body 1 and a cover 2 integral respectively with a boss 3, 4 for centring the reel and a fastening device comprising an expansible means and a rotary cam wherein the expansible means comprises at least three flexible blades 18 extending parallel to the axis of the cam rotatably mounted in the boss 4, the base of each blade is immobilised in the boss 4, the free end of each blade bears against the cam and has an outwardly projecting tooth 27 and the boss 3 has a central opening bordered by a truncated seat converging towards the boss 4 and against which the teeth 27 of the blades 18 are pressed by the cam in order to effect simultaneous fastening of the cover to the body and approach of the cover and body in order to tighten on the reel. The boss 3 is closed by a lid 8 and the boss 4 is closed by a dished member 9 which is rotated to actuate the cam which is screwed to a projecting lug 20 on the member 9. Each blade fits in a recess provided in a lug 10 on the boss 4 and abuts a surface of the cam which has undulations whereby turning the cam either projects the teeth 27 to abut the truncated seat 30 to fasten the cover to the body and draw the two parts together or allows the blades to resiliently return to its recess in the lug 10 and release the cover from the body. In modifications the cam may rotate in the boss 3 and the blades may be connected by a frangible member which engages a part annular recess in the lug 10 and which breaks to free the blades when the fastening device is assembled. A pin 32 on the member 9 engages in an arcuate groove 33 in the boss 4. In a further modification Figs. 3 and 4 (not shown) the cam 16' has an annular shoulder 34' and has recesses into each of which extends a catch 38' on the end of a rib 37' integral with each blade 18'. The inner surface of the recesses in the cam have arcuate surfaces joined by a notch 41' and the outer surfaces have staggered ramps 43' to ensure positive retraction of the blades. Alternatively the cam has tongues the surfaces of which have the arcuate surfaces and the tongues fit in slots in the blades.
Patent GB-983371-A (GB)
Title: Method of and apparatus for cleaning venetian blinds
Inventor: HAMILTON GAVIN
IPC: A47L4/00
Filed: 1962-07-20
Abstract: 983,371. Cleaning Venetian blinds. SCOTTISH ALUMINIUM WARE Ltd. May 20, 1963 [July 20, 1962], No. 27935/62. Heading A4F. [Also in Division B3] A Venetian blind 8 is cleaned by suspending it fully extended and with its slots closed, and applying thereto under pressure a polishing and detergent medium, as by a pump 17 and a flexible hose 19, and thereafter a rinsing medium, e.g. water by a flexible hose 9 and a pump 22. The polishing and detergent medium which may comprise ground limestone and an industrial detergent, is pumped from a tank 15, the used liquid being collected in a trough 9 and either returned to the tank 15 for recirculation or passed to a drain 14 according to the setting of a valve 11. To prevent spotting of the blind on drying a wetting medium, e.g. a detergent, may be applied thereto through a base 29 from a tank 25 by a pump 27.
Patent GB-279401-A (GB)
Abstract: 279,401. I. G. Farbenindustrie Akt.- Ges. Oct. 21, 1926, [Convention date]. Addition to 272,924. Samples furnished. Anthraquinonehydroazines.- Vat dyestuffs are produced by treating with an oxidizing agent and then with a saponifying agent 9 : 10-diethers of anthrahydroquinones containing a #-amino or #- monosubstituted-amino group, the a-position ortho to the amino group being occupied by hydrogen; according to the parent Specification the corresponding 9 : 10-disulphuric esters are so treated. According to an example 2-aminoanthrahydroquinone-9 : 10-dimethylether is heated in dilute hydrochloric-acid suspension with ferric chloride and the product saponified by means of concentrated sulphuric acid: the saponified product may be purified by vatting and reprecipitation or by extraction with pyridine and dyes cotton from the vat in fast blue shades. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use, as parent materials, of anthrahydroquinone-9 : 10-diethers with more than one amino or monosubstituted amino group in #-position. Alkaline hypochlorite is also specified as an oxidizing agent. This subject-matter does not appear in the Specification as accepted. 2-Aminoanthrahydroquinone-9 : 10-diethers are obtained by reducing 2-amino- or 2-acylaminoanthraquinones, alklyating the resulting leuco compounds, and, in the. case of the acylamino compounds, splitting off the acyl residue. Thus 2-acetaminoanthraquinone is reduced in alcoholic solution in presence of nickel by means of hydrogen under pressure ; the alcoholic suspension is added to aqueous caustic soda solution and stirred with dimethylsulphate; the precipitated ether yields the hydrochloride of 2-aminoanthrahydroquinone dimethylether upon saponification with aqueous alcoholic hydrochloric acid; the free base can be obtained by boiling with sodium acetate solution and can be diazotized and coupled with #-naphthol.
Patent GB-767936-A (GB)
Title: Improvements in hydraulic turbo-couplings
Inventor: SINCLAIR HAROLD
IPC: F16D33/14
Filed: 1952-11-16
Abstract: 767,936. Hydraulic couplings. FLUIDRIVE PATENTS, Ltd. Oct. 14, 1953 [Nov. 16, 1952], No. 28025/52. Class 69 (2). In a turbo-coupling an adjustable scoop tube is provided whereby the torque transmitted by the coupling is automatically limited whilst the runner is accelerating. In a further construction, also having an adjustable scoop tube, the coupling runs at a substantially constant speed regardless of variations in the speed of the input shaft of the coupling. The scoop tube 3, which is slidable longitudinally, as described in Specification 538,217, is moved by a lever 7 and the fluid in the tube passes through a passage 22, which may lead to a cooler, and returns to the impeller 4 and runner 5 through a passage 23. The runner has inter-vane pockets, as described in Specification 669,331. A passage 21 connects the passage 23 with a cylinder 12 and a piston 11 in the cylinder is connected to the lever 7. When the driving motor is switched on, the tube 3 transfers fluid from a reservoir 1 to the members 4, 5 and as the pressure increases in the passage 23 the piston 11 moves and the lever 7 is thereby moved. Movement of the lever 7 partially retracts the tube 3 and the supply of fluid to the members 4, 5 is reduced so that the torque transmitted is limited. The lever 7 may be biased by a weight 14 or by a spring fitted behind the piston 11. Leak-off nozzles 2 to the reservoir may be provided. A baffle 6, as described in Specification 538,043, is provided. Spring - loaded centrifugally - operated loadlimiting valves 8, which may be as described in Specification 732,668, may be provided. To assist the coupling to give a constant output speed the nozzles 2 may be replaced by centrifugal opening valves which may comprise spring-loaded balls. In the further construction an impeller and runner are disposed in a working chamber connected by ports to a scoop chamber in which a scoop tube is slidable. The position of the tube governs the volume of fluid transferred to a sump. A positive displacement pump transfers fluid continuously from the sump to the coupling and to a pipe, and as in the first construction, the pressure in the pipe acts on a piston, thereby sliding the scoop tube in the chamber. In this construction, the filling of the working circuit increases as the scoop tube is retracted.
Patent GB-1109174-A (GB)
Title: Inventions in or relating to delivery devices for materials
Inventor: GRAY RONALD
IPC: B65G47/80
Filed: 1964-07-08
Abstract: 1,109,174. Feeding material. BIRMING- HAM SMALL ARMS CO. Ltd. 7 July, 1965 [8 July, 1964], No. 28076/64. Heading B8S. Material falls down shoot 9 on to rotating disc 1 and is delivered therefrom by stationary plough 13. The passage of the material on the disc 1 is assisted by vanes 3 which are carried by bar 2 which is slidingly mounted at 6 and is given oscillatory movement by pin 4 carried by the disc 1. The vanes 3 urge the material outwards as far as the plough 13.
Patent GB-830535-A (GB)
Title: Improvements in or relating to electromagnetic devices
IPC: H01F7/14
Filed: 1957-09-05
Abstract: 830,535. Electromagnets. DE FLIGUE, W. Sept. 5, 1957 [Sept. 6, 1956], No. 28078/57. Addition to 746,167. Class 35. In a modification of the electromagnetic device described in the parent Specification, the heavy current conductor 7 which is divided into two unequal paths a and b embraces an outer branch 1b of the magnetic core. This permits the use of an auxiliary winding 6 on the central core 2 for biasing the device, or for operating it alone if desired.
Patent GB-953870-A (GB)
Title: Improvements in or relating to machines for printing or decorating articles of ware
Inventor: JAMES DAVID RICHARD
IPC: B41F31/20
Filed: 1959-08-18
Abstract: 953,870. Printing-machines. MURRAY CURVEX PRINTING Ltd. Aug. 17, 1960 [Aug. 18, 1959; March 14, 1960], Nos. 28141/59 and 8858/60. Heading B6C. Means for applying ink to a design plate 44 and removing excess ink therefrom in a machine in which an inked design is transferred from the plate to an article of ware by a resilient pad, comprises a head member 50 arranged to reciprocate horizontally above the design plate, a doctor blade 62 on the head member having an edge 63 to remove excess ink from the plate during return strokes of the head member 50, and a downwardly facing surface 64 supported by the head member in spaced relation above the design plate 44 and out of contact therewith, said surface coacting with the plate to form an ink reservoir so that ink is spread on the plate from the reservoir during forward strokes and excess ink is removed from the plate and returned to the reservoir by the edge 63 during return strokes. The head 50 is rotatably fitted on an end portion 42 of a shaft 43 mounted on a double-acting ram (not shown), and during forward movement the head 50 is held by a spring 55 with the edge 63 above the plate 44. During return movement air forces pistons 67 to tilt the head 50 so that the edge 63 engages the plate. The blade 62 may be pivoted upwardly to facilitate sharpening &c. by removing pin 65, and a nut 54 is provided to adjust the doctoring pressure. In the embodiment of Figs. 1 and 2 (not shown), the reservoir is formed on the bottom surface of the head by a recessed portion and an abutment shoulder which forms a rear support for the blade.
Patent GB-443979-A (GB)
Title: Improvements in and relating to boilers and particularly to boilers adapted for domestic purposes
IPC: F22B37/22
Filed: 1934-10-02
Abstract: 443,979. Hand-hole doors. HAWKINS, J. E., 10, St. Alban's Road, Barnet, Hertfordshire. Oct. 2, 1934, Nos. 28158 and 30918. [Class 123 (i)] A domestic boiler has a hand-hole with a flange formed on, or constituting part of a collar 8 welded at 13 to the boiler wall 1, the flange presenting to the interior of the boiler a surface 82 forming a seating for the hand-hole cover 2, so that the inner face of the latter lies flush with the inner face of the boiler. The collar 8 is L-shaped, one limb 8<1> extending into the boiler to lie flush with its inner surface and extending outward so far that the cover when in place is also flush therewith. The cover 2 and collar 8 are circular or elliptical in plan, and, when circular, slots 12 are formed on extensions 10 in the collar and cover to allow introduction of the latter. The cover 2 carries integral bolts 5 passing through holes in webs on the limb 8<2> of the collar or through holes in external cross-bars 9 bearing on the collar. The collar is then held in place by nuts 6. Alternatively, the cover is held tight by wedges 20 driven between the surfaces of the collar and cover and lugs 17 with inclined inner surfaces thereon. An upstanding part 3 on the cover 2 holds a gasket 4 in place.
Patent GB-1194256-A (GB)
Title: Immunological Indicator and Test System
Inventor: ARQUILLA EDWARD ROBERT
IPC: G01N33/554
Filed: 1967-06-19
Abstract: 1,194,256. Immunological indicator comprising microbial cells. MILES LABORATORIES Inc. 19 June, No. 28181/67. Heading B1X. An immunological indicator comprises microbial cells to which are attached coupling agent molecules by covalent bonds. The attached coupling agent molecules each have at least one non-bonded group which can form a covalent bond with antigens, giving an "indicator system". The microbial cells may be bacterial, fungal or protozoal cells with a maximum dimension of 0.2 to 10 microns, and may 'be treated with formaldehyde or phenol and optionally stained before use. The coupling agent may be bis diazobenzidine (BDB), bis diazobenzidine disulphonic acid, tetra-azo-pphenylene-diamine, difluorodinitrobenzene, a carbodiimide, toluene diisocyaniate, cyanuric chloride, dichloro-s-triazine, N-t-butyl-5-methyl -isoxazolium perchlorate. Indicator systems exemlified are Brucella abortus-BDB-HCG; E. coli-BDB-HCG Saccharomyces cerevisiae- BDB-HCG; E.Coli-N,N'-dicyclohexyl carbodiimide-HCG; E. coli-BDB-human serum albumin (HSA); E. coli-BDB-horse gamma globulin; E.coli-N-t-butyl-5-methylisoxazoliuma perchlorate-HSA; the same indicator coupled to horse gamma globulin; each of Bacillus subtilis, Bacillus pumilis, Lactobacillus leichmannii, Pseudomonas fragi coupled to BDB and to each of HSA, horse gamma globulin and human insulin; other components are mentioned. The indicator systems may be used in chromatography type tests, tube tests, slide or plate-tests. Test devices for chromatography type tests for antigens comprise bibulous materials carrying the residue resulting from either (a) the deposition of an indicator system as above, made from the antigen to be detected, and a superimposed deposition of the homologous antibody, or (b) the deposition of the immune aggregate formed from the indicator system and the homologous antibody. The device may be developed with a urine sample under test or a spot of the urine sample may be placed on the spot of immune aggregate and the device developed with saline. If the immune aggregate dissociates in the presence of the sample, the indicator system migrates, and if the cells were stained the migrating material forms coloured streaks.