baber/WOPTO huggingface dataset:
Patent GB-211419-A (GB)
Title: Improvements in feeding apparatus for photographic films such as used in the cinematographic art
IPC: G03B1/18
Filed: 1923-09-18
Abstract: 211,419. Lawley, H. V., and Lawley Apparatus Co., Ltd. Sept. 18, 1923. Kinematograph apparatus.-The usual gate and tensioning devices are dispensed with, and one of the sprockets is fitted with a coiled spring whereby the necessary tension is exerted on the film continuously and is arranged so that the tension remains constant under all conditions. In addition, the film is centred by the adjustment of the lower sprocket by helical slot mechanism. The lower sprocket b is intermittently rotated by a Maltese cross wheel d and the pin wheel d<1> and in geared to the upper sprocket by spur gearing c, c<1>, e. The upper sprocket f and the spur wheel e are mounted loosely on a stationary stud g secured to the frame a. On one side of the wheel e is fitted a pawl h engaging a ratchet wheel i attached to a disc i<1> also mounted loosely on the stud g. This disc i<1> in turn carries a pawl i<2> normally in engagement with a ratchet wheel g<1> fixed to the stud g. A pin i<3> on the disc i<1> carries one end of a spring j coiled round the stud g, the other end of the spring j being attached to the sprocket f. In operation, the lower sprocket b will draw the film from the upper sprocket f while the wheel e rotates freely on the stud g until the loop is taken up, when the upper sprocket f will rotate and wind the spring j. The disc i does not take part in the rotation until the spring j is wound sufficiently by the relative motion of the sprocket f and the stud g to cause the shoulder f<4> on the sprocket f to trip the pawl i<2> by depressing the tail i<4> of the pawl i<2>. As the feed proceeds the upper sprocket f will be rotated by the pull of the film at the same rate as the wheel e is rotated bv the gearing and thus maintain the film under a constant tension. The centring of the picture in the fixed mask f<3> is effected by rotation of the lower sprocket b with respect to the spindle by means of a sliding key l engaging a helical slot in the socket. The sliding key b is operated by a nut l<2> as shown in Fig. 3.
Patent GB-803764-A (GB)
Title: Improvements relating to spinning jets
Inventor: LUCAS ARTHUR
IPC: D01D4/02
Filed: 1956-07-30
Abstract: A spinning jet is formed in one piece as a cylinder 2 closed at one end by the jet face 1 in which a concentric annular ridge 4 is formed.  The ridge may be formed at the junction of the jet face and the cylindrical wall, and may be of rounded cross-section. The ridge prevents damage to the jet face and holes in handling, or if the jet is stood on its face. <PICT:0803764/IV (a)/1>
Patent GB-482107-A (GB)
Title: Bags or containers
IPC: A45C7/00
Filed: 1937-08-26
Abstract: 482,107. Bags. DOPPELT, C. Aug. 26, 1937, No. 23427. [Class 133] The side walls 12, 13 of a leather or like bag are continued to form closure flaps 20, 21 which lie parallel to the base when the bag is closed. The closure flaps have flexible continuing portions 22 which are attached to the end walls, and are provided with stiffening bars 25 extending into the parts 22 so that in the closed position, Fig. 2, the parts 22 are folded downwardly over the end walls. The flaps are maintained closed by a sliding-clasp fastener 29, 30. The side and end walls may be flexible or may be rendered rigid either wholly or in part by internally applied cardboard &c. stiffening pieces 18, 19. A waterproof fabric lining 32 is provided.
Patent GB-258887-A (GB)
Title: Method of effecting catalytic reactions for the production of ammonia
IPC: C01C1/04
Filed: 1926-09-23
Abstract: 258,887. Lazote, Inc., (Assignees of Williams, R.). Sept. 24, 1925, [Convention date]. Methyl alcohol; oxygenated organic compounds.- Carbon monoxide is removed from hydrogen - containing gases by passage under pressure over a catalyst capable of forming oxygenated organic compounds such as methyl alcohol and then removing the latter by condensation while the gases are still under pressure. Preferably the pressure employed is that under which the resulting hydrogen-containing gas is to react. Catalytic substances mentioned comprise zinc, zinc and chromium, and zinc and copper; iron may also be employed if the formation of some methane is not deleterious. In condensing out the methyl alcohol &c., impurities such as water, methane and sulphur compounds are simultaneously removed. Any carbon monoxide remaining in the gases is eliminated by passage under pressure over a methaneforming catalyst or through one of the known absorbents. In this manner, up to 10 per cent of carbon monoxide present in hydrogen-containing gases can be removed, whilst carbon dioxide and hydrocarbons such as methane may also be transformed into condensable products by the same process. Oily products and higher alcohols are produced when the gas speed is reduced, the temperature increased, or alkali oxides added to the catalyst. According to the example, a purified mixture of nitrogen and hydrogen in the volume proportions of 1 3 and containing 2 per cent of carbon monoxide is compressed by pump 2 to 900 atmospheres and conducted through a catalytic apparatus 3 containing a heated catalyst comprising zinc oxide prepared by igniting precipitated zinc carbonate, or a mixture of zinc and chromium oxides obtained by adding ammonia to a solution of zinc and chromium nitrates. The products pass through a water-cooled condenser 4, where the oxygenated compounds in which the impurities are dissolved separate out and are collected in the receiver 5. The Specification as open to inspection under Sect. 91 (3) (a) includes also an example according to which hydrogen containing 2 per cent of carbon monoxide and free from sulphur compounds is compressed by the pump 2 to 150 atmospheres and then passed as before through the catalytic apparatus 3 and condenser 4. This subject-matter does not appear in the Specification as accepted.
Patent GB-905533-A (GB)
Title: Improvements relating to the production of solid bleach
IPC: B01J19/06
Filed: 1961-06-29
Abstract: A stable, solid, substantially dry alkali metal borate-hypochlorite bleach is prepared by chlorinating an alkali metal hydroxide solution before or after mixing with it a previously prepared mixture of a mineral acid and an alkali metal tetraborate and/or metaborate or before or after mixing it with an alkali metal tetraborate and/or metaborate and before mixing the slurry so produced with a mineral acid, and rapidly drying the resulting slurry, the ingredients being used in proportions such that the final product contains 0.029-0.36 moles of (OCl) per mole of B2O3 and the relative proportion of the mineral acid being so chosen that the titratable alkalinity of the product reckoned as X2O (X being the alkali metal) is 0.2-0.9 moles per mole of B2O3.  The alkali metal tetraborates and metaborates may be sodium tetraborate pentahydrate or decahydrate, anhydrous sodium tetraborate, lithium tetraborate pentahydrate, potassium tetraborate or sodium, potassium or lithium metaborate and the mineral acid may be sulphuric, hydrochloric, nitric or phosphoric acid.  The compositions may also contain soluble crystalline salts such as alkali metal chlorides and chlorates and the alkali metal salts of the mineral acids used.  The slurry may be dried by spray drying, drum drying, vacuum oven drying or forced air drying.
Patent GB-250104-A (GB)
Title: Improvements in pleating machines
IPC: D06J1/06
Filed: 1925-09-22
Abstract: 250,104. Ezbelent, G., and Ezbelent, R.. Sept. 22, 1925. Pleating.-In a pleating machine in which the material is pleated by reciprocating knives which feed it to rollers &c., the direction of the pleat is determined by formation plates which can be adjusted to vary the pleat as the machine runs and can also be moved transversely of the material. The knives 3, 4 are carried by angle plates 3<1>, 4<1> which are reciprocated by known means. The formation plates 5, 6 are made in separately mounted parts carried on shafts 9, 10 to which the parts can be selectively fixed by screws 11. The plates are operated to vary the pleats by means of a known mechanism comprising an arm 13 actuated by a rocking member 14, and are traversed by a cam mounted on one of the roller shafts and rotated by adjustable ratchet mechanism.
Patent GB-826398-A (GB)
Title: Improvements in or relating to electrical contact assemblies
Inventor: DAVIDSON IAN ARTHUR
IPC: B21D37/08
Filed: 1957-07-26
Abstract: 826,398. Making electrical components. BELLING & LEE Ltd. July 26, 1957, No. 23705/57. Class 83 (2). [Also in Group XXXVI] A socket contact consisting of a pair of resilient wings 13, 14 connected by a strap 5 from which depend a tubular connecting stem 8 and a tag 15 is bent up from an H-shaped blank 19, Fig. 5, a succession of which can be stamped from a strip of sheet-metal, as shown, by removal of the shaded areas 19 leaving the blanks attached to parallel strips 20, 21 by lateral strips 22, 23. The strips 20, 21 serve to guide the succession of blanks into a bending and rolling tool which forms the contacts and detaches them from the succession by cutting at the lines 24, 25. Specification 826,397 is referred to.
Patent GB-1341875-A (GB)
Title: Anthelmintic compositions
IPC: F27D99/00
Filed: 1971-04-19
Abstract: 1341875 Anthelmintic compositions KUREHA KAGAKU KOGYO KK 19 April 1971 [10 March 1970] 23708/71 Heading C3P [Also in Division A5] An anthelmintic composition comprises (a) a complex of calcium O-methyl-O-(2,2-dichlorovinyl) phosphate and O,O-dimethyl- O-(2,2-dichlorovinyl) phosphate and (b) a copolymer of 30-60 parts of a conjugated diene, 70-40 parts of a vinyl or vinylidene monomer and 0À5-5 parts of a polyolefinically unsaturated cross-linking agent. The conjugated diene may be butadiene, chloroprene or isoprene. The vinyl or vynlidene monomer may be ethylene, propylene, styrene, α-methyl styrene, vinyl chloride, vinylidene chloride, vinyl acetate, vinyl butyl ether, acrylonitrile, methacrylonitrile, methyl acrylate or methyl methacrylate. The cross-linking agent may be divinyl benzene. The composition may also include another thermoplastic resin (e.g. polymethyl methacrylate, polyvinyl chloride, polyvinyl acetate, polystyrene or an ethylenevinyl acetate copolymer), a plasticizer (e.g. dioctyl phthalate) and a filler (e.g. silica powder). The composition is extruded into granules.
Patent GB-601179-A (GB)
Title: Improvements in and relating to hydraulic clutch and transmission devices
IPC: F16D33/16
Filed: 1945-09-14
Abstract: 601,179. Hydraulic couplings. JACK & HEINTZ, Inc. Sept. 14, 1945, No. 23720. Convention date, Oct. 7, 1944. [Class 69 (ii)] The casing 1, 5 of the coupling is filled with liquid when required by the spring-moved diaphragm 10 acting on the liquid 16. Movement is initiated by the pedal 28, this unlocking the hook 47 and allowing the spring 27 to move the diaphragm. A passage 20 allows passage of air between the coupling casing and the space above the diaphragm.
Patent GB-1107318-A (GB)
Title: High-efficiency transmitter output stage
IPC: H03H2/00
Filed: 1967-05-22
Abstract: 1,107,318. Valve amplifying circuits. PATELHOLD PATENTVERWERTUNGS- & ELEKTRO-HOLDING A.G. 22 May, 1967 [23 May, 1966], No. 23742/67. Heading H3W. In a high-efficiency transmitter output stage in which the load 3 is connected across paralleltuned circuit 2 in the output of valve 1, and a series-resonant circuit 4 tuned to the third harmonic is connected in parallel, the valve is shunted by a capacitor 6 which, together with the output capacity of the valve, is resonant at third harmonic frequency with a seriesconnected inductance 5.
Patent GB-424966-A (GB)
Title: Improvements in and relating to looms for weaving, of the shuttleless type
IPC: D03D47/00
Filed: 1933-08-28
Abstract: 424,966. Looms with stationary weft supplies; stop motions. BADDELEY, C. H., 5, Lindum Terrace, Bradford, Yorkshire. Aug. 28, 1933, No. 23818. [Classes 142 (i) and 142 (ii)] Weft supplying ; weft inserters, construction and operation.-Weft is drawn from a stationary supply O, Fig. 11, and inserted between the warp threads in a shuttleless loom by an eyed weft carrier T<1>, Fig. 7, mounted on the end of a metal tape T which is reciprocated by an oscillating drum D, Fig. 4, on the lay G. The drum may be driven by rack and pinion mechanism D<1>, D<2>, that is operated by a cam controlled lever A, or by a relatively stationary rack Fig. 9, (not shown), that can be positioned selectively in the path of a pinion on the lay, the latter pinion being operatively connected to the drum spindle by a train of gears. Rollers are arranged at intervals within the drum casing to facilitate movement of the tape and buffers are provided on the drum and the casing to prevent jamming. As the tape leaves the drum it is pressed towards the reed by an adjustable bowl on the lay. The weft carrier is weighted at T<6> and provided with two weft receiving eyes T<4>, T<5>. Selvedges, forming.-The loops of weft inserted by the needle or carrier are trapped at the selvedges by pivotally mounted fingers F, Fig. 6, which are carried by the lay G and are moved towards and away from the fabric by the engagement of a depending lever F<2> with stops F<7>, F<8> on the breast beam. In a modification, weft trapping fingers Fx, Fig. 10, are moved upwardly, under spring action, to engage the weft when a pin F<10> on the receding lay engages a fixed stop F<8>, the movement of the pin depressing a pivoted lever F<11> and releasing an arm F<9> associated with the trapper. Stop-motions, weft.-On weft breakage, a tensioning weight O' Fig. 11, positioned between the weft supply and the carrier, engages contacts M<1>, M<2> and operates an electric stop motion. Specifications 342,113, 342,253, and 363,219 are referred to.
Patent GB-836021-A (GB)
Title: A method of and device for removing the internal burr in tube welding, more particularly in resistance welding operations
IPC: B23K37/08
Filed: 1956-08-02
Abstract: 836,021. Welding by pressure. PRVNI BRNENSKA STROJIRNA, ZAVODY KLEMENTA GOTTWALDA, NARODNI PODNIK. Aug. 2, 1956 [Aug. 24, 1955 (2)], No. 23868/56. Class 83 (4). During the resistance butt-welding of two tubes 3, 31 a stream of gas is caused to flow through the tubes past the welding-point to carry away internal burr-forming flash and a device is provided within the tubes to throttle the stream. In one embodiment gas is supplied through a socket 2, Fig. 1, into one end of a tube 3 being butt-welded at 4 to another tube 3<SP>1</SP>, a throttling member 5 being provided in the other tube. In a modification compressed air is supplied through a throttling nozzle 5, Fig. 2, which directs a stream along the tube walls.
Patent GB-1222987-A (GB)
Title: Continuous process for preparation of silica gel
Inventor: CHOMITZ NICHOLAS
IPC: C01B33/154
Filed: 1968-05-20
Abstract: 1,222,987. Silica gel. AMERICAN CYANAMID CO. 20 May, 1968 [26 June, 1967], No. 23949/68. Heading C1A. Silica gel is made by continuously mixing sodium silicate and sulphuric acid to form a mixture of pH 7-8À6 and then rapidly feeding the mixture to an agitated gelling tank where it is allowed to age until gelation occurs. The gel is continuously removed. It is preferred to use a silicate having a Na 2 O: SiO 2  ratio of 1: 3.3 in contact with dilute H 2 SO 4  to give mixtures of pH 7À8-8À3. The H 2 SO is blended with the silicate in such a manner that there is turbulence at the point of contact and this is best achieved by an incline mixer. The mixture is preferably fed into the gelling tank within 30 seconds after contact and allowed to age therein for 5-60 minutes. The gel may be coated with Al 2 O 3  particles to yield catalysts suitable for cracking processes by adding alum to the silica gel particles to obtain a pH of 2-3À5, treating with ammonia and filtering and washing the particles.
Patent GB-580871-A (GB)
Title: Improvements relating to oil seals and garter springs thereof
IPC: F16J15/32
Filed: 1944-12-01
Abstract: 580,871. Oil seals. ANGUS & CO., Ltd., G., and GOODWIN, R. Dec. 1, 1944, No. 24012. [Class 122 (v)] A rubber oil seal washer a, which may bestiffened at its outer periphery by an annular metal insert b, is formed with a flexible sealing flange c in which a garter spring d is permanently embedded. The garter spring may be non- adherent to the sealing flange and wholly embedded therein, or adherently bonded to and partially protruding from the flange. In all cases the garter spring may be occupied by rubber. The seal may have two such sealing flanges and may be of internal or external type.
Patent GB-850333-A (GB)
Title: Phenylacetic esters having two basic substituents and production thereof
IPC: C07D295/145
Filed: 1958-07-25
Abstract: The invention comprises compounds of the general formula: <FORM:0850333/IV(b)/1> wherein when n is 1, Y represents a diethylamino, piperidino, 1, 2, 5, 6-tetrahydro-pyridino or morpholino group and Z represents a piperidino (except where Y is diethylamino or piperidino), morpholino, 1, 2, 5, 6-tetrahydro-pyridino, 3-methyl-piperidino, 4-methyl-piperidino or pyrrolidino group; and when N is 2, Y represents a diethylamino, morpholino or piperidino group and Z represents a piperidino or 1, 2, 5, 6-tetrahydro-pyridino group; and their acid-addition and, when n is 2, their quaternary ammonium derivatives.  The compounds may be prepared by condensing compounds of the formula: <FORM:0850333/IV(b)/2> where Hal represents a halogen atom, with secondary amines of the formula ZH: and, if desired, converting the products into their acid-addition or quaternary ammonium salts.  The products are spasmolytic agents.  a -Phenyl-a -halogeno-acetic esters of the second general formula above are prepared by esterifying appropriate amino alcohols with a -phenyl-a -halogeno-acetic acid halide, and the said amino alcohols are prepared by treating chlorohydrin or the acetate of 2-(21-chloro-ethoxy)-ethanol, as appropriate, with HY.
Patent GB-865193-A (GB)
Title: Improvements relating to the mounting of oscillatory masses
IPC: B65G27/30
Filed: 1957-07-30
Abstract: 865,193. Vibratory devices. UHDE G.m.b.H., F. July 30, 1957 [Aug. 6, 1956], No. 24054/57. Class 80 (4). A coupled two-mass oscillatory system applicable to jigging conveyers, comprises a first mass m supported on a second mass M by relatively stiff springs 2 which second mass is itself softly sprung with respect to a fixture by springs 4, the driving force p being applied to the mass M. The amplitude of vibration is varied by varying the driving frequency of the applied force p and/or the ratio of the masses m, M.
Patent GB-731083-A (GB)
Title: Improvements in or relating to heel supports for boots
IPC: A43B5/16
Filed: 1952-09-25
Abstract: 731,083. Athletic boots. NAPIER, C. H. K. May 5, 1953 [Sept. 25, 1952], No. 24099/52. Class 17 (2). Skating or like boots are provided with camparatively rigid pads on either side which can be individually drawn together to support the ankle. Two metal blades 1 with rubber pads 2 are inserted between the upper 3 and a stiffener 4 lying inside a lining 5. Plates 6 external to the boot are attached by screws 11 passing through holes 12 and 13 in brackets 14 accommodating the lower ends of the blades 1. Projections 10 on the plates 6 engage slots 9 in plates 7 which are screwed to the under-surface of the boot instep. Tie rods 17 are hooked at 16 through holes 15 in the blades 1 and pass through the heel to receive nuts 18. Extension pieces 20 attached to the rear ends of the blades extend through the upper at the heel and are connected behind it by a tie bolt 26. Thus, by adjustment of the tie rods 17 by the nuts 18, and the tie bolt 26, the pads can be drawn in individually to support the ankle. In one modification, the blades and pads are T-shaped and are connected at the base of the T by tie rods but are not connected at the rear of the heel. In another modification, levers external to the boot are pivoted at the instep and are connected to the rear end of the blades so that the levers can be pivoted by adjusting-screws engaging under the instep to force the pads towards each other. If desired, the two pads may be replaced by a single pad extending round the heel which may be made to engage the foot by being drawn towards the sole by screws engaging therewith.
Patent GB-1305862-A (GB)
Inventor: HARNISH M E
IPC: C04B35/44
Filed: 1971-04-19
Abstract: 1305862 Refractory aggregate INTERNATIONAL MINERALS & CHEMICAL CORP 19 April 1971 [25 Nov 1970] 24101/71 Heading C1J A dry refractory aggregate for a parting composition comprises (a) at least 45% grog portion of size - 4+50 mesh, (b) 2-10% intermediate portion of - 50+100 mesh, (c) at least 40% of fines fraction of - 100 mesh, (d) 2-6% magnesium salt, e.g. Epsom salt; the percentages being based on the weight of dry aggregate, the mesh sizes being National Bureau of Standard sieve sizes. Components (a), (b) and (c) comprise chrome ore, periclase or mixtures thereof and, in addition, either (1) the grog portion contains at least 40% chromite ore and the fines fraction contains at least 20% periclase (calc. as MgO) or (11) the grog fraction contains at least 25% periclase and the fines fraction contains at least 35% chromite ore. The periclase is of at least 85% MgO content. In addition the aggregate contains ¢-3 wt. per cent bentonite and 0À1-0À5 wt. per cent methylcellulose as plasticizer.
Patent GB-979450-A (GB)
Title: Improvements in or relating to the production of potassium monopersulphate
IPC: C01B15/08
Filed: 1962-06-22
Abstract: A mixture of KHSO5, KHSO4 and K2SO4 containing at least 30% KHSO5, is made by reacting at up to 15 DEG  C. hydrogen peroxide with concentrated sulphuric acid or oleum to give monopersulphuric acid solution, adding KHSO4 and/or K2SO4, then partially neutralizing with an aqueous solution of a basic potassium compound to precipitate the mixture. KHSO4 and/or K2SO4 may be added, e.g. as a solid, to either the monopersulphuric acid solution or the hydrogen peroxide.  KHSO4 may be used to give a molecular ratio of KHSO4:H2SO4 of 0.5 to 1.5:1, but preferably 1:1; whilst K2SO4 may be used to give a molecular ratio of K2SO4:H2SO4 of 0.25 to 0.75:1, but preferably 0.5:1.  The neutralization which may be stopped before the pH of the acid solution has risen above 0.5, may be accomplished by using concentrated K2CO3 solution.  The precipitate may be filtered in the cold and dried. The product may contain 30-60% KHSO5.  Reference has been directed by the Comptroller to Specification 797,701.