baber/WOPTO huggingface dataset:
Patent GB-1293265-A (GB)
Title: Cloth roll loading apparatus
IPC: B65G1/06
Filed: 1970-05-22
Abstract: 1293265 Feeding webs CUTTERS MACHINE CO Inc 22 May 1970 [10 June 1969] 24794/70 Heading B8R Apparatus 10 for transferring a web roll 52, e.g. of cloth material, from a storage truck 11 to a discharge station such as a cloth spreading machine 12 comprises a platform 25 having an inclined surface which co-operates with upstanding barrier rods 50 mounted on a base frame 20, the platform 25 being movable between upper and lower limit positions by means of a motor 43. In operation, the platform 25 is initially located at an elevation such that fingers 71 pivoted to the platform are positioned between the shelves 62 and 63 of track 11; the platform is then moved upwardly carrying the fingers up between cradle arms 65 to engage and lift the front roll 66 until it has cleared the arms 65, when the roll will gravitate on to the inclined surface of the platform where it will rest as shown in Fig. 1, against the barrier rods 50. To transfer the roll 52, the platform 25 is raised further until its inclined surface is flush with the upper ends of the rods 50 (Fig. 6, not shown), permitting the roll 52 to drop on to a support platform 17 of the machine 12. The platform 25 can then be moved downwardly, below the shelf 63 if shelf 62 is empty, for the handling cycle to be repeated.
Patent GB-956277-A (GB)
Title: Improvements in photographic silver halide emulsions
IPC: G03C1/34
Filed: 1960-07-18
Abstract: Disulphides of the formula R2O2S-R-S-S-R-SO2R2 where R is an alkylene group of up to 6 carbon atoms, and R2 is amino or -OM (M being a cation) are prepared by oxidizing the corresponding mercapto-sulphonic acids or sulphonamides, for example with hydrogen peroxide or sodium perchlorate. Examples are given of the, oxidation of 3-mercapto-propane sulphonic acid, 4-mercapto-butane sulphonic acid and 4-mercapto -2- butane sulphonic acid with hydrogen peroxide followed by conversion of products to their potassium salts by treatment with aqueous potassium hydroxide.  The mercapto sulphonic acids are obtained by passing aqueous solutions of the guanidinium salts through an acid ion-echange column. Guanidinium 4, 41-dithio-di (2-butane sulphonate) is prepared by oxidizing guanidinium 4-mercapto -2- butane sulphonate with hydrogen peroxide and ferrous sulphate as catalyst.  Specifications 706,921, 746,686 and 904,364 are referred to.
Patent GB-629433-A (GB)
Title: Improvements in or relating to gas-turbine-engine combustion equipment
IPC: F23R3/08
Filed: 1947-09-10
Abstract: 629,433. Generating combustion products under pressure. McCARTHY, D., and SMITH, A. D. F. Sept. 10, 1947, No. 24902. [Class 51 (i)] One or both of the overlapping portions of the tubular sections of a flame tube are corrugated to provide air inlets. The inlet section 37, Fig. 5, comprises two members 38, 39. The cylindrical end of member 38 is welded to the beginning of the next section 40. The end of the member 39 is fluted and fits into the section 40. Air entering between the members 38, 39, passes into the flame tube along the passages provided by the flutings. Similarly the cylindrical ends 45, 52 of the sections 40, 41 fit into and are welded to the fluted ends of the next sections 41, 42. The passages may be parallel to the flame tube wall or may be inclined as shown in Fig. 3 and the passages may be formed by flutings in both overlapping portions. The junction between the parts 38, 39, 40 may be formed by a corrugated end 64, Fig. 11, of the part inserted between cylindrical overlapping portions 60, 62 of the parts 39, 40. This provides alternating passages admitting air to the flame tube from the section 37 and from the air jacket. Similar constructions are applied to annular flame tubes.
Patent GB-762646-A (GB)
Title: Dry recovery of isobutylene-styrene type copolymer
IPC: C08F10/00
Filed: 1954-08-27
Abstract: Thermoplastic copolymers of aliphatic and aromatic olefines prepared in the presence of a Friedel-Crafts catalyst and a solvent are recovered by heating the resulting dispersion to a temperature above the boiling point of the solvent at atmospheric pressure, at a sufficient pressure to maintain the solvent in the liquid phase, flashing the dispersion down to atmospheric pressure and working the product so <PICT:0762646/IV(a)/1> <PICT:0762646/IV(a)/2> <PICT:0762646/IV(a)/3> obtained to reduce the residual solvent content.  Copolymers of styrene, p-methyl-, a -methyl-p-methyl-, p-ethyl-, p-chloro-, p-bromostyrene, vinyl naphthalene and indene with isobutylene or methyl-2-butene-1, preferably having 35-70 per cent of combined aromatic monomer, are prepared in methyl, ethyl or propyl chloride, fluorochlorinated hydrocarbons or vinyl chloride, using boron fluoride or aluminium chloride as catalyst at temperatures below 0 DEG  C., preferably below - 70 DEG  C., may be used.  In examples, a styrene-isobutylene copolymer dispersion, prepared in a methyl chloride solution with an aluminium chloride catalyst and in which the formation of hydrogen chloride is neutralized by magnesium oxide, calcium carbonate or a quaternary ammonium hydroxide, is treated by (i) passing to a direct single-stage heater (Figs. 1, 3), through a pressure-reducing valve to a flash chamber 6, which encloses a double drum drier 7, where the dried polymer is worked and removed to an extruder; (ii) passing either through a heater 3 (Fig. 2), and a separator 16, or through a boiler 21 to flashing valves 17 and 24 and to an extruder 14; and (iii) by passing through a heater (Fig. 3), to a flash drum 4, and then either to a heater 9, directly to a flash drum 10 or through an intermediate flash drum 13 at a lower pressure to an extruder 11, or alternatively to a pressure drum 19 where it is heated and compressed before discharge or passage to a flash drum 10 for hot working in the extruder.  Specifications 631,272 and 682,695 are referred to.
Patent GB-1174494-A (GB)
Title: Repository Vaccine and Method of Preparing the Same.
IPC: A61K9/00
Filed: 1967-05-31
Abstract: 1,174,494. Emulsion type vaccines. NORDEN LABORATORIES, Inc. 31 May, 1967 [21 June, 1966], No. 25013/67. Heading A5B. Emulsion type vaccines are prepared by disintegrating the microorganism(s) which form the vaccine and dispersing the product in one or other of the components of a water and oil emulsion, constituents of the microorganisms serving as emulsifying agents which stabilize the emulsion. A thickener, e.g. aluminium stearate may be employed to increase the viscosity of the oil phase and a sterilant chemical e.g. methyl-, propyl- or butyl-p-hydroxy benzoate may be added so that the vaccine is selfsterilizing. Microorganisms specifically mentioned are Clostridium chauvei, Leptospira pomono, Vibrio fetus, rabies virus and C. chauvei and C. septicum in combination. A preferred oil is safflower oil.
Patent GB-491404-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K21/12
Filed: 1937-09-14
Abstract: 491,404. Magneto-electric machines. DEUTA - WERKE, VORM. DEUTSCHE TACHOMETERWERKE GES. Sept. 14, 1937, Nos. 25024 and 25025. Convention dates, Sept. 14, 1936 and July 16, 1937. [Class 35] A generator, more especially a transmitter for the remote operation of electrical revolution meters comprises a cylindrical casing 17 enclosing a stator having a number of poles or limbs 4 each carrying a winding 8 over a part of its length and arranged parallel with the axis of the casing so that portions of the limbs free of windings surround the permanent magnet rotor 3. The poles 4 are magnetically connected at one end by a yoke 12, and in order to reduce vibrations of the rotor and to prevent uneven rotation, a second set of poles 13 3 located between the main poles and joined by a yoke 15 may be provided. Windings may be provided on these additional poles and each set of windings may supply a separate indicating device, or their outputs may be rectified separately and added together. The two sets of stator poles extend in opposite directions and may be spaced axially from one another so that each surrounds a part of the length of the rotor. The magnet shown is of cylindrical form with four poles. A soft iron plate 20 may be placed against the magnet to weaken the flux to an extent governed by the thickness of the plate. Alternatively, a cross-shaped soft iron member may be used, with the ends turned over to bear on the magnet, and the degree of shunting is varied by adjusting the position of the axis in relation to the magnet poles. Calibration errors due to heating may be compensated by using thick plates or a solid core for the stator so that as the temperature rises, the eddy current losses are reduced. Compensation may also be obtained by the use of a flux shunt 28 of material such as nickel steel the magnetic reluctance of which increases with temperature. The casing of the machine is formed with a holding flange 18 arranged so that the holes 19 or screws therein are readilv accessible. In order to reduce variations in the air gap, the free ends of the stator cores 4, Fig. 7, may be extended beyond the rotor and screwed to a support 30 which also encloses a ball bearing 32. The end support 34 has a coupling sleeve 40 with electric plug contacts 41, and the casing parts are secured by bolts 37. A modified construction having six poles is described, the stator poles being bent inwards to bring the windings nearer to the axis of the machine. The support for the free ends of the stator poles is preferably of ceramic or other material having a low temperature coefficient of expansion so that temperature errors due to expansion of the iron and the heating of the windings are compensated by automatic adjustment of the air gap.
Patent GB-1470997-A (GB)
Title: Spin-drier machines
IPC: D06F49/00
Filed: 1975-05-22
Abstract: 1470997 Machinery safety devices GENERAL MOTORS Ltd 22 May 1975 [6 June 1974] 25143/74 Heading F2J The lid 8 of a spin drier drum 4 in a centrifugal extraction, or washing, machine (not shown) cannot be fully opened until the drum 4 has stopped rotating, i.e. has been braked to a standstill, the lid 8 having a pair of oppositely spring biased latches 16, 18 the manual release of the first 16 of which, via a lever 32 and release plate 38, releases the lid 8 to a partially opened position to switch off the drive motor and apply a spring-engaged brake (not shown) to the rotating drum 4, by releasing a brake disengaging pushrod 62 from a tongue 30 on the lid 8, and simultaneously operates a clockwork timer delay mechanism 60 to retard release of the second latch 18 until the drum 4 is braked to rest after which the timer 60 permits spring release of the second latch 18 whereby the lid 8 may be fully opened, such opening being assisted by a spring- loaded plunger 10. Closing the lid 8 moves the push-rod 62 down against the spring applying loading of the brake to move the brake mechanism to its "brake-off" condition (i.e. in which the brake is released) and switches on the drum drive motor (not shown). Figs. 7 to 14 (not shown) illustrates a similar double-latch safety delay device which prevents full opening of the lid until the spin drier drum is braked to a standstill. Alternatively a single latch having two hook-like portions could replace the pair of latches in each of the above embodiments. In each embodiment, the latches may be of acetal resin. The timer 60 may be driven by means other than clockwork.
Patent GB-282914-A (GB)
Title: Improvements in or relating to collecting or delivering mechanism for printing and like machines
IPC: B65H35/10
Filed: 1926-10-09
Abstract: 282,914. Timson, A. R. Oct. 9, 1926. Delivery apparatus. - Sheets delivered from a printing or like machine are collected on a cylinder 10 having fixed impaling-pins 11 which pierce the sheets as they are passing between the cylinder and a flat support 12 longitudinally slotted to receive the pins. The pins 11 are fixed at the required angle in blocks 19, Fig. 2, secured by studs 20 to blocks 24 fixed in a recess 25 in the cylinder 10 by screws, the studs 20 having heads 22 shaped to fit slidably in dovetail grooves 23 in the block 24 so that the pins 11 can be adjusted. Corresponding adjustment of the support 12 can be made along a shaft 28, which is carried by an adjustable arm 34 so that the support can be adjusted relatively to the cylinder 10. A blade 36 operated by links 38, 39 from a cam 37 strips the sheets from the pins 11 when the required number has been collected, and they are carried by tapes 40, 41 to a delivery table 42. The machine may print on sheets or on a web 3, cutting apparatus 4 - - 7, Fig. 1, being provided in the latter case between the machine and the collecting apparatus. Cutting and perforating apparatus.-The web 3 is perforated or partly severed by a blade 4 and co-operating groove 5 and passes between endless bands or tapes 6, 7, the rolls 8, 9 of which are driven at a greater speed than the web so that the severance is completed.
Patent GB-888513-A (GB)
Title: Improved liquid dispensing apparatus
Inventor: CHARLTON HENRY ERNEST
IPC: B67D1/14
Filed: 1959-07-23
Abstract: 888,513. Dispensing liquids by gaseous pressure. PALMER & CO. Ltd., F. W. July 21, 1960 [July 23, 1959], No. 25241/59. Class 102(2) [Also in Group XVIII] Beer is forced from a cask 11 through a valve means 15 into a container 13 which is maintained under constant lower gaseous pressure from a source 12 which also pressurises the cask 11, by means of a combined reducing and relief valve 19. The valve means 15 has a three position rotary cock connecting the container 13 to the spout 14 and to an internal chamber of the valve or the internal chamber through a reduced section passage to the spout 14, or the internal chamber to the container 13. The internal chamber is connected through a separately actuated valve to the cask. In any position of the cock, the internal chamber may be connected to the cask, i.e. to fill the container 13, connect the spout 14 to full pressure beer during dispensing from the container 13 or connect the spout to full pressure beer through the reduced section passage.
Patent GB-1428245-A (GB)
Title: 1,3,7-triene hydrocarbons and their preparation
IPC: C07C2/04
Filed: 1973-05-25
Abstract: 1428245 1,3,7 Triene hydrocarbons TAKASAGO PERFUMERY CO Ltd 25 May 1973 25312/73 Heading C5E [Also in Division B1] 1,3,7 Triene hydrocarbons of the formula I where R represents a saturated or unsaturated hydrocarbon group are prepared by dimerizing a conjugated diene of the formula in the presence of catalyst system comprising (a) a Pd compound; (b) a ligand MR<SP>1</SP> 3  (where M is P or As and R<SP>1</SP> is hydrocarbyl); (c) a strong alkali in an alcohol and (d) a compound having one or more ether linkages. Preferred catalyst components are (a) PdX 2  (where X is a halogen atom, NO 3 , CN or OCOCH 3 ) or a bis-#-allyl palladium halide; (b) Ph 3 P, Bu 3 P or Bu 3 As; (c) NaOPh or KOH in isopropanol or butanol; (d) diethyl ether, isopropyl ether or triethylene glycol monomethyl ether the latter also fulfilling the function of alcohol in (c). Examples describe the dimerizations of isoprene, myrcene and #-farnesene, the latter two reactants giving products of the Formula I where R is -(CH 2 ) 2 CH=C(CH 3 ) 2  or which are claimed per se. Squalenes may be obtained by selective hydrogenation of the dimer of #-farnesene with a Raney-Ni catalyst.
Patent GB-707776-A (GB)
Title: Brakes for colliery and other winding machinery
Inventor: BATTY ALFRED WILLIAM HENRY
IPC: F16D65/28
Filed: 1951-10-30
Abstract: 707,776. Winding machinery brakes. WILD & CO., Ltd., M. B. Oct. 27, 1952 [Oct. 30, 1951], No. 25313/51. Class 103(1) In brake actuating means for colliery or other winding machinery of the type in which the brake is applied by a weight d which is raised to release the brake by hydraulic pressure acting in cylinder a upon a piston b under the control of a valve e by a hand lever g, a further hydraulic piston q is provided which is connected to the brake lever h in such a way as to produce a more rapid application of the brakes in an emergency. The action of piston q is controlled by a valve s operable through linkage w by a second hand lever x. In order that the emergency operation may be varied in intensity according to the position of the cage in the wind, a rotary cam z driven by part of the winding machinery acts to control a throttle y in the passage between the supply passage 3 and the control valve s.
Patent GB-407078-A (GB)
Title: Improvements in and relating to appliances for teaching elementary arithmetic
IPC: G09B19/02
Filed: 1932-09-12
Abstract: 407,078. Educational appliances. CURLING, A., Abbey School, Deans Yard, Westminster. Sept. 12, 1932, No. 25317. [Class 146 (ii).] An educational appliance, particularly for use in teaching arithmetic, is constructed with two relatively-movable members one of which is provided with lateral projections for holding and the other is provided with an exposed rim or margin to facilitate adjustment; preferably the device comprises a housing b, provided with the lateral projections c, in which a disc a is pivoted, the disc being provided with numbers arranged in radial and circular series, and the housing being provided with slots r to expose a radial series of numbers on the disc which registers with another series arranged adjacent the slots on the housing. The housing is formed from two members shaped as shown and spaced apart by distance pieces arranged between the pairs of projections c, and the disc a is pivoted between them on a tubular rivet e or on a disc of material secured in position and acting as an additional spacer for the housing- members. The edge of the disc may be toothed to facilitate manipulation. The hole in the disc through which the pivot passes may be strengthened and the pivot may be removable to facilitate the substitution of other discs. A stop may be provided slidable in a slot in the disc and co-operating with the projections c to limit the rotation of the disc to 180‹. In place of the slots in the housing, reading wires or transparent windows may be provided.
Patent GB-1517072-A (GB)
Title: Process for treating coal and products produced thereby
IPC: C08F4/46
Filed: 1976-06-18
Abstract: 1517072 Graft polymerization on to coal POLYGULF ASSOCIATES 18 June 1976 [26 June 1975] 25318/76 Heading C3P Natural coal having grafted polymeric chains is produced by treating natural coal with a free radical or ionic catalyst, and an olefinic monomer, the catalyst producing reactive sites upon the coal, whereupon the monomer polymerizes. The treatment is preferably carried out in a solvent to produce a liquid final product. The use of styrene, acrylic acid and an unsaturated gasoline fraction is exemplified. In the examples pulverized coal (200 U.S. mesh) is used.
Patent GB-533723-A (GB)
Title: Improvements relating to electric plug-and-socket connectors
IPC: H01R13/56
Filed: 1939-09-07
Abstract: 533,723. Mechanical couplings for cable or wire sheathing or covering. CONRADI, E. S. Sept. 7, 1939, No. 25344. Addition to 490,406. [Class 38 (i)] A cable-gripping device comprising a rubber tube 21 compressed on to the cable 22 by a screw operated device 23 as described in the parent Specification, has the tube 21 made integral with the rubber body 10 of a coupling. The coupling is shown as having both sockets 20 and plugs 17 mounted on a rigid disc 15 with separating webs 16. At the opposite end a fibre disc 14 is held by the screw 19 that secures the disc 15.
Patent GB-874543-A (GB)
Title: Manufacture of flexible tubes
IPC: B31F1/20
Filed: 1957-08-13
Abstract: 874,543. Flexible pipes. FARBWERKE HOECHST A.G. Aug. 13, 1957 [Aug. 14, 1956], No. 25552/57. Class 99(2). A flexible tube is formed by helically winding one or more bands of polyvinyl chloride, coated with a heat-activated adhesive, so that adjacent convolutions partially overlap, compressing the tube axially to produce corrugation of the tube transversely to its axis, and heating the corrugated tube to activate the adhesive and cause welding together of the overlapping portions. The polyvinyl chloride band may have associated therewith a band of paper, textile, metal foil, cellulose, glass fibre, or another plastic and the heat-activated adhesive may be provided on one or both sides of the band. The heat-activated adhesive may be polyacrylic acid ethyl ester, copolymers of vinyl chloride and vinyl acetate, copolymers of vinyl chloride, vinyl acetate and maleic acid or copolymers of vinyl chloride, vinyl isobutyl ether and polyvinylidene chloride.
Patent GB-674521-A (GB)
Title: Improvements in or relating to devices for positioning correctly type blocks for securing them to type bars of typewriters
IPC: B41J1/04
Filed: 1950-10-23
Abstract: 674,521. Typewriters. PAILLARD SOC. ANON. Oct. 23, 1950 [Dec. 28, 1949], No. 25750/50. Class 100 (iv). Aligning type-heads on levers. A device for correctly positioning a type-head 1 ready for fixing to a type-lever 5 comprises a block 2 with two cylindrical surfaces 7, 8 of the same curvature as the typewriter platen for determining a parallel relation of the type-surfaces with the platen, and a projection 9 as shown engaging with a recess 10 in the type-head. Alternatively the projection may be formed on the type-head so that it does not project as far as the type surfaces and which engages in a recess in the block 2. A clearance is formed between the end of the projection 9 and the end of the recess 10 so that the type-head rests only on the two cylindrical surfaces 7, 8. The projection 9 may be of various shapes.
Patent GB-313818-A (GB)
Title: Improvements in or relating to closures for bottles, collapsible tubes and the like
IPC: B65D35/42
Filed: 1928-09-07
Abstract: 313,818. Endicott, S. C. Sept. 7, 1928. Stoppers, means to prevent loss of.-In a closure for bottles, collapsable tubes, &c. comprising an internally threaded collar 9 adapted to be screwed on to the neck 1 to draw down on to the end of the neck a cap 3 having arms 6 oppositely arranged and pivoted at 8 to the collar, means are provided to retain the cap yieldably in set positions relative to the collar. The arms 6 are resilient and have formed in their outer ends grooves 11, 12 which radiate from the pivots 8 and are engaged by ribs 10 on the collar to hold the cap either over the end of the neck or in a position clear therefrom. As applied to a bottle, the neck member is inserted in a cork and the cork is secured in the bottle mouth.
Patent GB-869475-A (GB)
Title: Leuco-sulphuric acid esters of dyestuffs of the benzanthrone-pyrazolanthrone series and process for their manufacture
IPC: C09B9/02
Filed: 1958-08-11
Abstract: The invention comprises leuco-sulphuric acid esters of dyestuffs of the formula:-  <FORM:0869475/IV(c)/1> where one X is hydrogen and the other X is an alkoxy group of 1 to 4 carbon atoms, Y is hydrogen, an alkyl group of 1 to 5 carbon atoms or a phenyl group, Z is hydrogen or bromine and n is 0 or 1 or has a value between 0 and 1.  The esters are made from the dyestuffs by known methods, e.g. by treating the dyestuffs with chlorsulphonic acid in the presence of pyridine and iron powder. The esters are used to dye cotton or other vegetable fibres blue or for printing.  Benzanthrone-3- or -8-methoxypyrazolanthrone, Bz-21-(ethyl-, -isopropyl- or -phenyl) benzanthrone-8-methoxypyrazolanthrone, Bz-61-bromo-benzanthrone-8-methoxypyrazolanthrone and Bz-21-isopropyl-benzanthrone-8-ethoxypyrazolanthrone are made by melting the appropriately substituted N(1)- (Bz- 11- benzanthronyl)- pyrazolanthrone with an alkaline condensing agent.  Bz- 21-ethyl- or -isopropyl-benzanthrone- 8-methoxypyrazolanthrone are chlorinated by treatment with sodium chlorate and hydrochloric acid. Specification 800,971 is referred to.