baber/WOPTO huggingface dataset:
Patent GB-429033-A (GB)
Title: Improvements in and relating to electric incandescent filament lamps of tubular form
IPC: H01K1/46
Filed: 1933-11-23
Abstract: 429,033. Caps and holders for electric lamps. MAYER, H., 47, Corringham Road, Golders Green, London. Nov. 23, 1933, No. 32754. [Class 39 (ii)] Tubular electric lamps are provided with contacts, preferably of springy strip metal, each consisting of a neck portion projecting laterally from the tube or from a cap secured thereon, with a transverse contact limb projecting on one or both sides of the neck. Holders for use with the lamp consist of an insulating cover plate with a slot at one side to receive the neck of the cap contact, the lateral limb or limbs of which bear upon a contact strip mounted on a base beneath the cover plate. As shown in Fig. 4 lateral caps 4 of insulating material secured to the tube 2 are provided with substantially inverted U-shaped contact strips forming two neck portions 12, 13 each with an outwardly bent transverse limb 5, the strip being attached to the cap by a screw 14 through the yoke of the U. The holder comprises a lower portion 6, Fig. 2, with a cover plate 7 which is recessed on its underside and formed with a slot 8 corresponding in width to the neck of the contact strip. A strip contact 11 with either bowed or > -shaped limbs corresponding in position to the limbs 5 of the cap contact is secured upon the base 6 of the holder and provided on the underside of the latter with a terminal for connection to the supply leads. The contact strips may be secured on the caps 4 with their limbs 5 at right-angles to the direction shown in Fig. 4, and may have the limbs directed inwardly, Fig. 1<c>. The contacts and holders may be so arranged that, in order to secure a lamp therein a longitudinal sliding to secure one end is followed by a turning or swinging movement to secure the other end.
Patent GB-1100712-A (GB)
Title: Treatment of polystyrene
Inventor: SHERWOOD ALFRED EDWARD
IPC: C08J7/14
Filed: 1963-08-20
Abstract: The surface of a polystyrene article is treated by sulphonating and/or chlorosulphonating the article by dipping into the aliphatic hydrocarbon layer of a bath, formed from an aliphatic hydrocarbon (which is sufficiently free from aromatic hydrocarbons so as to have no solvent action on the article) disposed in a layer above chlorosulphonic acid so that a small quantity of the acid is dissolved in the hydrocarbon, and then subjecting the article to an ion exchange treatment to replace the hydrogen atoms in the sulphonated and/or chlorosulphonated surface by metallic atoms.  The hydrocarbon may be a hexane or n-heptane.  The article may be cleaned by rinsing it in an aliphatic hydrocarbon prior to its treatment or it may be rinsed prior to the ion exchange treatment and dried.  The ion exchange treatment may be carried out with an aq. solution of sodium chloride or hydroxide or nickel chloride.  The article may be annealed prior to its treatment.
Patent GB-303986-A (GB)
Title: Improvements in or relating to electro-magnetic gramophone reproducers
IPC: H04R11/08
Filed: 1927-12-05
Abstract: 303,986. Graham Amplion, Ltd., and Dunthorne, J. D. Dec. 5, 1927. Sound recording and reproducing devices connect. ing to tone-arms. - An electric pick-up or recording device is provided with a flexible sound absorbing attachment 9 for connection to The tone-arm. In a modification, a metal device is fitted in the attachment and engages the end of the tone-arm
Patent GB-434105-A (GB)
Title: Improvements in or relating to the manufacture of ketones
IPC: C07C45/00
Filed: 1933-11-24
Abstract: Saturated ketones containing a higher number of carbon atoms are produced by treating secondary alcohols with dehydrogenating catalysts such as copper, silver, zinc, cadmium, iron, cobalt and nickel or their oxides and preferably containing also a dehydrogenating oxide catalyst such as an oxide of chromium, aluminium, thorium, vanadium, tungsten, molybdenum, or uranium, and the two components may be chemically combined.  Suitable catalysts are described in Specifications 272,555, 301,806, and 313,575, [all in Class 2 (iii)].  The temperature of the reaction may be 200--500 DEG  C. and the pressure 2--15 atmospheres.  In an example, isopropyl alcohol vapour is passed over a zinc-copper-cadmium chromite catalyst at 357 DEG  C. and 100 lb. pressure, the product containing methyl isobutyl ketone, acetone, and higher boiling oils.  Other initial materials mentioned are secondary butanol, diethyl carbinol, methyl propylcarbinol, and methyl isopropyl carbinol.
Patent GB-455742-A (GB)
Title: Improvements in or relating to the polymerisation of unsaturated organic compounds
IPC: C08F2/18
Filed: 1935-11-27
Abstract: Unsaturated organic compounds or mixtures thereof are polymerized while maintaining them in a state of suspension in an aqueous medium by continuous agitation in the presence of powdery or finely-divided solid inorganic substances to yield powdery polymers.  Suitable inorganic substances which may be prepared in situ by precipitation include kaolin, talcum, barium sulphate, kiesulguhr, aluminium oxide, aluminium hydroxide, iron hydroxide or other water - insoluble metallic hydroxides or oxy salts such as hydrolysis products of iron chloride, aluminium chloride, stannous chloride and antimony pentachloride.  Cellulose esters or ethers, solvents or softening agents may be added to the monomeric organic substances.  The polymers may if desired, be separated from the inorganic powdery substances by sifting, centrifuging or solvent action.  The products, with or without the powdery inorganic substances, and with or without other fillers if desired may be worked up into solid products or into lacquers.  In examples (a) a mixture of acrylic acid ethyl ester and benzoyl peroxide is polymerized by heating in a water-talcum mixture to yield a product of any desired degree of polymerization which may be worked up into a leather-like product with the addition of other fillers such as soot or talcum; (2) acrylic acid butyl ester containing benzoyl peroxide is polymerized, in a mixture of barium sulphate and water; (3), (4) and (7) vinyl acetate, methacrylic acid butyl ester or acrylic acid ethyl ester containing benzoyl peroxide is polymerized in a mixture of talcum and water; (5) a mixture of vinyl acetate, acrylic acid methyl ester and benzoyl peroxide is polymerized in a mixture of kaolin and water; (6) a mixture of ethyl cellulose, acrylic acid ethyl ester and benzoyl peroxide is polymerized in a mixture of aluminium and water.  Specification 427,494 is referred to.  The Specification as open to inspection under Sect. 91 refers in general to the use of powdery substances and includes in examples the use of polymethyl methacrylite and ethyl cellulose.  The Specification also refers to the use of emulsifying agents.  This subject-matter does not appear in the Specification as accepted.
Patent GB-307386-A (GB)
Title: Improvements in and connected with the auxiliary lighting of railway and like vehicles
IPC: B60Q3/02
Filed: 1927-12-06
Abstract: 307,386. Stone & Co., Ltd., J., and Darker, A. H. Dec. 6, 1927. Supplying consuming devices from variablespeed genarators.-In vehicle lighting installations with automatic switches for auxiliary lights such as embarkation lights, the switches are actuated by an electromagnet energized in accordance with the train speed so that the auxiliary lights are switched on and off at a speed which can be predetermined without restriction imposed by other switching operations as in the installations described in Specifications 245,502 and 282,507. In a train lighting installation with a single battery b, a. dynamo d, a cut-in switch c and a main lighting switch e, auxiliary lights f<1> - - f<4> are switched out at s by a shunt solenoid k raising a core o at a predetermined voltage of the dynamo d. A hand switch i is opened during daytime. To ensure that the lights f<1> - - f<4> are switched on at the same voltage as they are switched off, the core o closes contacts n, q when it is sucked in and so reduces the energization of the solenoid by introducing a series resistance or by energizing a demagnetizing winding m. Upper and lower adjustable stops for the core determine the air-gaps and so the voltages at which the switch operates. The installation may include two batteries with an automatic change-over switch separate from the other switches.
Patent GB-336448-A (GB)
Title: Improvements in or relating to electric accumulators
IPC: H01M50/40
Filed: 1929-10-30
Abstract: 336,448. Edwards, W. R., and Edwards & Co., Ltd., R. Oct. 30, 1929. Separators for accumulator electrodes comprise grooved or corrugated plates 4 with insulating rods 5 resting loosely in the grooves or corrugations. The accumulator may be of the kind described in Specification 303,690.
Patent GB-301494-A (GB)
Title: Improvements in and relating to servo-brakes for automobile vehicles
IPC: B60T13/24
Filed: 1928-11-12
Abstract: 301,494. Soc. Anon. A. Saurer. Dec. 2, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Fluid-pressure.-In a fluid-pressure brake for motor vehicles operated by an auxiliary source of power produced by the motor the operating lever for the mechanical brakes, during normal working, acts exclusively upon the controlling device and the latter allows the auxiliary source of power and the brakes coupled therewith to come into operation immediately after the operating lever begins to move. The operating lever 1 is loosely mounted on the brake shaft 3 and is connected to the controlling device 6 for the vacuum brake cylinder 9 which is adapted to operate the brake shaft 3 by a lever 12 having a laterally bent arm 14 located under the operaing lever so that the brakes may be applied mechanically. The controlling device 6 is constructed so that for every position of the operating lever 1 there is a definite braking force proportional to the force applied to the operating lever. Compressed air or oil pressure may be used.
Patent GB-1269117-A (GB)
Title: Improvements in or relating to rolling headed articles
IPC: B21H1/18
Filed: 1969-07-01
Abstract: 1,269,117. Rolling. ROTARY PROFILE ANSTALT. 1 July, 1969 [18 July, 1968], No. 33094/69. Heading B3M. An elongated headed article is produced by rolling a blank 11, Fig. 1, in a throat defined by two or more rolls 12, locating one end of the blank axially by a member 16, and rolling a head on the opposite end by means of a stylus 21 which is forced into line contact with the blank (Fig. 2). The head of the blank may be flattened in a further operation, and may have a recess formed in it by the stylus. The blank may be held within a throat defined by an external C-shaped roll and an internal cylindrical roll. The external roll may be lined by a series of small rolls held in a cage so that a number of blanks may be fed successively through the throat. The blanks may be cold rolled or heated inductively before rolling. The method is suitable for rolling allen screws, car half-shafts, or nails.
Patent GB-952881-A (GB)
Title: Improvements in fluid control valves
IPC: F16K41/04
Filed: 1960-09-27
Abstract: 952,881. Valves. E. FRACCHIA. Sept. 27, 1960 [Sept. 30, 1959; May 9, 1960], No. 33128/60. Heading F2V. A fluid-flow control valve comprises a valve closure member 3 formed with a screw thread 5, preferably of fine pitch, engaging a thread on the housing 1. The valve member 3 is formed with a recess which is engaged by a spindle 7 such that rotation of the spindle controls the opening and the closing of the valve. The spindle is sealed by an 0-ring 9 or two such rings with a cap 16 of the housing and is normally prevented from removal during normal operation of the valve by a bush 14, but the spindle may be removed at any time by removal of the bush, for examination or repair of the seal. Such removal may be made without closing or emptying the fluid system since the thread 5 forms a labyrinth seal. A gasket 15 between the cap and housing may extend to the spindle whereby an additional sealing is provided when the valve is fully open by the closure member contacting this gasket. The gasket may be omitted in which ease the valve closure seats on the body to provide a seal.
Patent GB-1463600-A (GB)
Title: Apparatus for tracking a raised edge without shadow interference
IPC: G06K11/02
Filed: 1974-07-26
Abstract: 1463600 Edge follower GERBER SCIENTIFIC INSTRUMENT CO 26 July 1974 [3 Aug 1973] 33131/74 Heading G1A In an edge follower system the edge is selectively illuminated so that shadows are eliminated. As described, the follower is used in a system for digitally recording the shape of a templet and illumination is supplied by one of four sources selected according to the direction of motion of the follower. The optical head 18 has a circular scan path and its output is fed to line following control 64 which generates signals to X and Y axis drives 70, 72 which cause the head 18 to follow the edge. The position of the head is derived from encoders 74, 76 attached to the drives and is recorded at 80. The drive signals E x , Ey are also fed to logic circuits 86-96 which select one of lamps 54-60 according to the instantaneous direction of motion of the head. Each lamp is associated with a light guide 38, 40, 48 or 50 which supplies illumination to the point where the head axis meets the surface 12 supporting the article being scanned. Preferably the light meets this surface at an angle of about 45 degrees.
Patent GB-466219-A (GB)
Title: Electro-hydraulic power installation for the operation of movable bridges and their wedging gear
IPC: E01D15/04
Filed: 1935-11-30
Abstract: 466,219. Hydraulic apparatus. ARROL & CO., Ltd., SIR W., and BAXTER, J. M. Nov. 30, 1935, Nos. 33260/35 and 30242/36. [Class 69 (ii)] [Also in Group X] Comprises electro-hydraulic gear for the operation of bridges and their wedging-gear, and includes a reversible electric motor 1 and a reversible-flow, reversible hydraulic pump driven thereby which is piped to a hydraulic reciprocator comprising a unitary opposed pair of cylinders so that, depending upon the direction of rotation of the pump, the reciprocator is displaced in one or the other direction. The movable wedges may be carried by the fixed part of the bridge and engage wedges fixed to the movable part, or vice versa. The movable wedge members 5 which engage the relatively fixed wedges are operated by reciprocators 3 through links 9. The reciprocator comprises movable cylinders 7, 7a which slide over rams 8, 8a supplied with fluid from or discharging fluid to the pump 2. In the construction shown, the rams are attached to the girder of the bridge. The pump 2 may be of the type constituting the hydraulically-driven reversible "B" unit of a known variable-speed torque transmitter including also a motordriven driving unit " A " piped thereto.
Patent GB-926573-A (GB)
Title: Improvements in or relating to unsaturated fluorine compounds
IPC: C08F28/00
Filed: 1961-09-18
Abstract: Wood may be waterproofed by immersion in an organic solvent solution of a poly (vinyl C1-3-perfluoroalkyl sulphide) followed by air drying.  Solutions of poly (vinyl trifluoromethyl sulphide) in acetone and 1,2-bis (trifluoromethylthio) ethane are specified.  The polymers may also be used for coating metal.ALSO:The invention comprises polymers and copolymers of vinyl perfluoroalkyl sulphides (for preparation of these see Group IV(b)).  Suitable comonomers include ethylenic and halogenated ethylenic hydrocarbons, acrylic and methacrylic acids and their derivatives, vinyl esters, vinyl ketones and butenedioic acids and their derivatives.  The polymers may contain 5 to 100% of the vinyl perfluoroalkyl sulphide, preferably 10% or more.  Emulsion, lead, bulk and solution methods of polymerization in the presence of an initiator may be used.  Examples describe the preparation of homopolymers from vinyl trifluoromethyl, pentafluoroethyl and perfluoro-5-methylhexyl sulphides, and of copolymers of vinyl trifluoromethyl sulphide with acrylonitrile and methyl methacrylate.  Benzoyl peroxide and a ,a 1-azodiisobutyronitrile are used as initiators.  Coating compositions comprise the polymers containing C1-3 perfluoroalkyl groups dissolved in organic solvents, specifically acetone and 1,2-bis(perfluoroalkylthio) ethanes.ALSO:The invention comprises vinyl perfluoroalkyl sulphides.  They may be prepared by dehydrohalogenation of corresponding 2-haloethyl perfluoroalkyl sulphides, e.g. with alkali metal hydroxide.  The 2-haloethyl perfluoroalkyl sulphides may be prepared by either (1) reacting ethylene with the corresponding perfluoroalkanesulphenyl halide, a polar solvent being preferably used, or (2) reacting a vinyl halide and a perfluoroalkanethiol, preferably in the presence of a free radical type catalyst or ultraviolet light.  The vinyl perfluoralkyl sulphides may be polymerized (see Group IV(a)).  The following 2-haloethyl perfluoralkyl sulphides are prepared in examples: CF3SCH2CH2Cl; C2F5SCH2CH2Cl; and (CF3)2CF(CF2)4SCH2 CH2Cl. Perfluoro-5-methylhexanesulphenyl chloride used as starting material in Example 7 is prepared by heating perfluoroisopropyl iodide with tetrafluoroethylene to give perfluoro-5-methylhexyl iodide, heating this with sulphur to give bis(perfluoro-5-methylhexyl) disulphide and finally chlorinating this.  1,2-bis(perfluoroalkylthio) ethanes RfSCH2 CH2SRf are prepared by reacting the vinyl perfluoroalkyl sulphides of the invention with fluorinated thiols, the reaction being preferably photocatalysed. CF3SCH2CH2SCF3 and C2F5SCH2CH2SCF3 are actually prepared.ALSO:Paper, wood and cloth may be waterproofed by immersion in an organic solvent solution of a poly(vinyl C1-3-perfluoroalkyl sulphide); followed by air drying.  Solutions of poly (vinyl trifluoromethyl sulphide) in acetone and 1,2-bis(trifluoromethylthio)ethane are specified.
Patent GB-1518034-A (GB)
Title: Hydrocarbon isomerization catalysts and procedures for the preparation and use thereof
IPC: C10G45/62
Filed: 1976-08-11
Abstract: 1518034 Hydrocarbon isomerisation catalyst COMPAGNIE FRANCAISE DE RAFFINAGE 11 Aug 1976 [13 Aug 1975] 33494/76 Heading BIE [Also in Division C5] A hydrocarbon isomerisation catalyst comprises the reaction product of (a) a refractory mineral oxide carrier with a platinum group metal and also titanium, zirconium, tungsten or molybdenum deposited on it together with a combined halogen, with (b) aluminium trichloride/bromide, ferric chloride/bromide, beyllium dichloride, zinc dichloride or zirconium dichloride. The catalyst is prepared by impregnation with solution(s) of the above metals followed by aftertreatment with the metal halides. The use of alumina as carrier is exemplified.
Patent GB-174266-A (GB)
Title: Power driven sliding propellers for canal boats, barges, steamers and the like
IPC: B63H20/14
Filed: 1920-12-21
Abstract: 174,266. Crossley, J. E., Cockin, V. B. B., and Cockin, D. H. Dec. 21, 1920. Driving-arrangements for screw propellers; propeller shafts, arrangements of; screw and like propellers.-In propelling apparatus in which the propeller and shaft are adjustable in depth of immersion, the bracket carrying the shaft is counterbalanced and the change in position is effected by coupling the actuating gear to the main power shaft. A depth-indicator is provided. The propeller shaft H is mounted in a casing G through which passes the splined driving-shaft A. The casing is guided by rods D and a slipper G', and has a nut F through which passes the depth-adjusting screw E. The weight of the casing is balanced by a strap B<1> passing over pulleys B<2>. The screwed shaft F is adapted to be actuated by bevel-gears X and shaft Y. A pinion on the shaft Y is adapted to be geared to a pinion 5 on the power shaft N when an intermediate pinion 2 carried by a pivoted arm 1 is swung into engagement. An indicator 7 is geared to show the position of the screw propeller. The driving-bevel M on the vertical splined shaft A gears with loose bevels M<1> which are coupled for forward or reverse running by clutches S to the power shaft N, which is itself connected to the engine P by a clutch R.
Patent GB-1098334-A (GB)
Title: Axial plain bearing
IPC: F16C17/06
Filed: 1966-07-26
Abstract: 1,098,334. Bearings. BROWN, BOVERI & CO. Ltd. July 26, 1966 [July 28, 1965], No 33517/66. Heading F2A. A thrust bearing has a number of angularly-spaced segments, each of which has ducts therein for conveying a combined coolant and lubricant, the ducts opening out at the sliding surface of the segment. In an embodiment, a shaft 1, Fig. 1, having a flange 2, is supported in both axial directions by a number of segments 4 and 5. Each of the latter is provided with cooling ducts 24, which are parallel to a sliding surface 23, Fig. 2, of the segment; bores 21, 22; and a radial duct 31. Each segment is connected by studs 7 to an elastic springbridge 6, a steel washer 20 being positioned therebetween. The springbridge 6 is supported by rings 8 and 9 in a housing 10 and has a pipe 11 therein. In use, combined coolant and lubricant is supplied to duets 12 in the housing 10 and is conveyed to the cooling ducts 24 in each segment, via the pipe 11 in the springbridge 6 and the bores 21, 22 in the segment. The sliding surfaces 23 and 3 of the segment and flange 2 respectively are lubricated via the radial duct 31. The combined coolant and lubricant is then passed through outlets 17, 18 and 19 in the housing 10. Thrower-rings 14 and scrapers 16 prevent escape of combined coolant and lubricant along the shaft 1 and into an annular hollow space 15 in the housing 10 respectively.
Patent GB-1464828-A (GB)
Title: Apparatus for positioning objects in transverse-laminography x-ray equipment
IPC: A61B6/08
Filed: 1975-08-12
Abstract: 1464828 Radiographic apparatus SIEMENS AG 12 Aug 1975 [12 Aug 1974] 33605/75 Heading H5R Apparatus for positioning an object, e.g. a human head, in a radiographic apparatus of the type in which the object is penetrated by a scanning beam over a luminar section, the positioning apparatus comprising a ring 6 carrying at opposed locations an X-ray source 9 and a detector 10, a locating device for securing the object, in this case of the type in which a flexible member 17<SP>1</SP> is inflated with liquid to grip the object and means for supporting the object, the means comprising an endless belt 19 which is movable to translate the object vertically in Fig. 2, the object, the belt 19 and the object locating device also being movable in the same direction by means 28 such movement being indicated by a pointer 30 and a scale 29. A graduated scale 5 can be applied to the object and the point of impingement of a beam from a light source 27 so that by means of the scale 29 and the known dimensions of the apparatus a particular plane of interest can be brought into the X-ray beam path. A limit switch 33 operated by a plate 31 prevents movement of belt 19 when an object is as far as possible in the object locating means.
Patent GB-1131679-A (GB)
Title: Method of manufacturing tinplate
Inventor: STUCHBERY ARTHUR LESLIE
IPC: B23K20/04
Filed: 1967-07-21
Abstract: 1,131,679. Electrolytic production of tinplate. METAL BOX CO. Ltd. July 21, 1967, No. 33747/67. Heading C7B. Tinplate is manufactured by electrolytically applying a coating of tin 3 to steel strip 4, mechanically compacting the interfaces of the two metals by cold-working the coated strip e.g. by passage between rolls 1 and subjecting the compacted strip to an elevated temperature lower than the melting point of tin, to increase the thickness of alloy 5, 5a formed at the steel/tin interface. The rise in temperature of the strip is in part provided by the working of the metal. A surface finish having desired optical properties may be imparted to the strip by the work elements during cold working. The strip may subsequently be subjected to chemical or passivation treatment, e.g. by passage through a heated, pressurized chamber Fig. 2 (not shown).