baber/WOPTO huggingface dataset:
Patent GB-949967-A (GB)
Title: Electrically conducting plastic material
IPC: H01B1/24
Filed: 1960-02-25
Abstract: A composition having a resistivity less than 12 ohm/cm3 comprises 20 to 40% by weight of emulsion polyvinylchloride, 15 to 50% by weight of plasticizer, and 15 to 50% by weight of furnace carbon black whose particles are incapable of passing a 400 mesh screen, the aggregate content of polyvinyl chloride, plasticizer, and carbon black being at least 95%.  Other ingredients specified are cadmium-barium mixed stearates, epoxy resin, calcium stearate and a mineral oil.
Patent GB-1099591-A (GB)
Title: Improvements in or relating to timing control devices
Inventor: PHILIPS RAYMOND HENRY
IPC: D04B15/66
Filed: 1964-02-18
Abstract: A timing control device for adjusting the length of a stocking formed on a circular knitting machine comprises a racked chain with control studs the drive pawl of which can be bluffed out of operation by a solenoid during which time a separate control unit is superposed for a variable pre-set period, one such superposed control being applied for the leg portion and a second one for the foot portion of the stocking.  The control means comprises a periodically operated rack wheel with a cam which is adjustable through a continuous range of settings to determine the time the chain is stopped and an indicator and dial to indicate the setting in relation to the rack wheel.
Patent GB-1206818-A (GB)
Title: Novel 4,5-seco-steroids and processes for their preparation
Inventor: JOLY ROBERT
IPC: C07J73/00
Filed: 1968-01-08
Abstract: 1,206,818. 4,5 - Seco - steroids. ROUSSEL UCLAF. 8 Jan., 1968 [6 Jan., 1967], No. 6774/70. Divided out of 1,206,816. Heading C2C. Novel compounds of formula wherein R<SP>9</SP> is Et or Pr, R<SP>2</SP> and R<SP>3</SP> are each H or alkyl (α or #) and R<SP>4</SP> and R<SP>6</SP> are each H or Me (α or #), are prepared by oxidation of the corresponding 17#-hydroxy-3,5-diones.
Patent GB-989811-A (GB)
Title: Process for the thermal splitting of hydrogen chloride from polychlorethanes
IPC: C07C17/25
Filed: 1962-02-21
Abstract: The invention comprises a process for preparing chloroethylenes by passing a polychloroethane at 240 DEG  to 260 DEG  C. through a nest of tubes each filled with an activated carbon catalyst having the following properties:  (a) a weight per litre of 250 to 350 g., (b) a benzene absorption power at 20 DEG  C. according to Langmuir of at least 60% wt. of benzene vapour with 90% benzene vapour saturation of the active carbon and at least 40% wt. with 10% benzene vapour saturation, calculated by the adsorption isotherms, (c) a ratio of the heat of wetting of the catalyst in benzene and water smaller than 2.4, and (d) a catalytic activity corresponding to at least 43 c.c. of oxygen per minute, based on the catalytic decomposition of a 3% wt. hydrogen peroxide solution in 0.03 N sulphuric acid with a catalyst particle size of 0.1 to 0.075 mm. Products specified are 1,2-dichloroethylene, trichloroethylene and tetrachloroethylene. Specification 302,321 is referred to.
Patent GB-1456100-A (GB)
Title: Electric batteries
IPC: H01M50/489
Filed: 1974-02-14
Abstract: 1456100 Separators ESB Inc 14 Feb 1974 [23 March 1973] 6792/74 Heading H1B A separator enabling an alkaline cell to have both high rate capability and long shelf-life comprises an organic substrate, e.g. " Cellophane " (Registered Trade Mark) to at least one side of which adheres a layer of a paste-like mixture consisting of a binder material, e.g. magnesium hydroxide and an inorganic material selected from titanium dioxide, zirconium dioxide, aluminium sulphate, aluminium chloride, aluminium oxide, barium chloride and chromium chloride dispersed in an inorganic medium, e.g. a solution of potassium hydroxide. The separator may be used in a button-type silveroxide, zinc cell (Figs. 1, 2, not shown), the paste layer being in direct contact with the silver oxide. In another embodiment, the paste mixture is sandwiched between two organic substrates (Fig. 4, not shown) and, in addition, a further layer of paste mixture may be provided on the other surface of one of the substrates so as to be in contact with the silver oxide. In another embodiment, Fig. 5, the separator comprises three organic substrates 51, 53 and two layers 52 of paste mixture. The substrates 51 may be of Cellophane and the substrate 53 of Acrofor. Alternative organic materials for the substrates are Celgard, Permian, Viskin, Pellon and " Dymel " (Registered Trade Mark). Alternative binder materials are carboxy-methyl cellulose, guar gum and " Carbopol " (Registered Trade Mark). Methods of manufacturing the separators are described.
Patent GB-556674-A (GB)
Title: Improvements in or relating to shuttles for looms
IPC: D03J5/08
Filed: 1942-05-20
Abstract: 556,674. Loom shuttles. JOWETT BROS., Ltd., and JOWETT, H. May 20, 1942, No. 6832. [Class 142 (iii)] The pivoted bobbin-spindle 2 is V- shaped on the underside 4 near its fulcrum and is supported by a V-block 5 held in place within a recess or recesses in the shuttle by a pin 7 arranged in front of the block and by the bottoms of the spring arms 8 which retain the bobbin on the spindle.
Patent GB-954070-A (GB)
Title: Improvements in clothes washing machines
IPC: D06F39/00
Filed: 1961-02-24
Abstract: 954,070. Fluid actuation of switches. GENERAL ELECTRIC CO. Feb. 24, 1961 [Feb. 29, 1960], No. 6833/61. Heading H2B. [Also in Divisions D1 and F4] A pressure-responsive single-pole doublethrow switch 30 (Fig. 5) in a washing and spin drying machine is operated by liquid pressure acting on a flexible rubber diaphragm 32 which is coupled to a switch actuator 37 by a disc 35, a plunger 34 and a lever 36. The switch actuator operates a switch blade 38 between fixed contacts 39, 40, the blade being biased by a leaf-spring 38.1 The plunger 34 is biased by an adjustable spring 41. As an alternative to the switch 30, a mercury-switch 113 is mounted on a tilting water-box 110 (Fig. 4) which moves about a pivot 111 to a position shown by broken lines when liquid enters it from a washing tub 12 through holes 17 at a rate greater than that of liquid escaping through a drain hole 119. An angled lid 118 serves as a deflector for incoming liquid, and a spring 112 is provided to restore the box to its horizontal position.
Patent GB-867507-A (GB)
Title: Improvements in or relating to duplicating
IPC: B41M5/025
Filed: 1957-04-01
Abstract: 867,507. Reactive transfer duplicating paper. COLUMBIA RIBBON & CARBON MANUFACTURING CO. Inc. April 1, 1957 [July 19, 1956], No. 6844/57. Class 96. A method of producing duplicate copies by a spirit duplicating process includes the steps of contacting a master sheet, imaged with an organic colour donor reagent containing a benzene ring structure and at least two adjacent hydroxyl groups substituted on a ring thereof, but not including gallic or tannic acids, with a copy sheet containing or coated with a metallic compound capable of reacting with the organic compound to form a colour. The colour donor reagent, e.g. alkyl gallates, pyrogallol, henatoxylin (either in pure form or as logwood extract), 2,2-methylene digallic acid, propyl gallic acid, 4-cyclohexylcatechol, 2,3-dihydroxynaphthalene and derivatives thereof, is first coated on a transfer sheet and the image transferred to the master sheet by pressure. The complementary precipitant metal compounds are preferably those of iron, vanadium and copper. The compounds are such that no particular pH value in the fountain solution of the duplicator is necessary to cause colour development on the copy sheet, and the pH value may then be maintained in the neutral range, e.g. at a value of about 7. In an example, the original transfer sheet was coated with 8.5 parts of carnaula wax, 25 parts of raw montan wax, 2.5 parts of pure beeswax, 10.2 parts of lanolin, 13.6 parts of mineral oil, 8.5 parts of cetyl alcohol, 3.4 parts of titanium dioxide and 50.8 parts of colour donor reagent, all parts being by weight. An exemplary composition for use with the copy sheet consists of 1.4 parts of hydroxyethylcellulose, 74.3 parts of water, 4.5 parts of methanol, 3.6 parts of ferric sulphate, 2.9 parts of carbowax, 3.6 parts of lactic acid, 8.6 parts of triethanolamine and 1.1 parts of clay, all parts being by weight. The triethanolamine serves to adjust the pH value to a neutral value. Ingredients such as glycerins, polyethylene glycols (e.g. carbowax), and propylon glycols serve as humectants to attract and hold moisture to assist in promoting the colour forming combination of the reagents. Such ingredients are not, however, essential since enough moisture will usually be present in the fountain solution or ambient atmosphere.
Patent GB-259824-A (GB)
Title: An improved heat exchange plate
IPC: C11D13/12
Filed: 1926-03-12
Abstract: 259,824. Dehn, F. B., (Jacobi, Akt.-Ges., A.). March 12, 1926. Plate apparatus. - Two or more pressed.out metal plates a are provided with projecting ribs or walls g, and assembled so that the projecting ribs on the plate lie between those on the other plats in order to provide a sinuous path for the heating or cooling medium. Plates b may be applied to give a flat external surface. The ribs may be formed from tongues of metal cut and bent out from the plates a. The edges of the plates may be welded to frame members of solid or of channel section.
Patent GB-194138-A (GB)
Title: Improved fastener for machine belting
IPC: F16G3/00
Filed: 1922-03-09
Abstract: 194,138. Sagar, C. K.. March 9, 1922. Belt fastenings of the type comprising two members A, B one of which is formed with a tubular cavity or recess a with aT-slot a' in the side and the other is formed with a T or enlarged head b to enter the slot and engage the interior of the tubular member to form a hinged connection. The tubular member is reinforced by a steel lining E, or the tubular part itself may be strengthened or thickened tu resist wear. The member B may be formed by folding a flat steel stamping in the manner shown in Fig. 6. The fastening may be made in multiple units for wide belts.
Patent GB-287318-A (GB)
Title: Improvements relating to grinding mills
IPC: B02C7/08
Filed: 1927-03-12
Abstract: 287,318. Fraser, L. M. March 12, 1927. Disc and like mills; mills of unspecified type combined with other apparatus.-A grinding mill, particularly for colours to be mixed with cellulose lacquers, is provided with means for preventing the loss of volatile constituents during the grinding operation. As shown in a conventional form, the mill comprises a casing 6 enclosing a rotary grinding member 1 and a fixed grinding member 5, the respective co-operating grinding surfaces being indicated at 1<a> and 5<a>. A scraper 18, discharge shoot 19, and receiving vessel 20 are also provided. From the latter vessel the materials may be returned to the mill for regrinding. A hopper shoot 8 serves for feeding in the material from an aperture closed by a cover 11. The volatile constituents pass off to a condenser 12, which may terminate in an outlet 16 for dealing with unusual amounts of vapour escaping. The outlet 16 may lead to the atmosphere, to a second condenser, or to a container or absorber. A guide shoot 17 returns the condensate to the mill. The condenser might be applied directly to a hopper integral with the mill. The vessel 20 may be the barrel of a pump having a screw-operated plunger 21.
Patent GB-274387-A (GB)
Title: An improved method for the regeneration of vulcanised rubber
IPC: C08J11/18
Filed: 1927-03-15
Abstract: 274,387. Carlsson, C. O. March 15, 1927. Devulcanizing waste rubber.-The regeneration of vulcanized rubber is effected by dissolving it in tar oil, removing impurities, e.g. by centrifuging, and precipitating the rubber from the solution by means of alcohol or other suitable reagent. The tar oil and alcohol may be recovered by distillation.
Patent GB-390310-A (GB)
Title: An improved sharpener for lawn-mowers and the like
IPC: B24B3/42
Filed: 1932-03-11
Abstract: 390,310. Grinding the cutters of lawnmowers. EPWORTH, H. J., Marlowe Villa, Cramond, Edinburgh. March 11, 1932, No. 7281. [Class 60.] A device for grinding the knife and rotary cutter blades of lawn-mowers is reciprocated over the work and comprises grinding elements 3, 4 for the knife and grinding elements 13 for the rotary cutter. The elements 13 are carried by guide blocks 12 which engage a blade on the rotary cutter and rotate it during the reciprocation. The device comprises a steel bar 1 provided with lugs 8 at the front ends for carrying handles 9 and lugs 10 at the rear for supporting the guide blocks 12. The blocks 12 have slots 18 for guiding the cutter blades and for carrying the grinding elements 13 which together with the elements 3, 4 are serrated to a fine file surface. The blocks 12 are provided with upstanding spindles 11 to which are secured push-pieces 19 against which bear springs 21. Stops 24 limit the motion of the push-pieces. The blades may be turned about the vertical axis of the spindles 11 to adjust for pitch of the cutter blades. In operation the mower is turned upside down so that the rotary cutter is free to rotate and one of the blades is engaged by a guide block. The blade and guide block is pulled towards the knife until the latter engages the grinding elements 3, 4 whereupon the tool is pushed bodily along the knife and the rotary cutter blade which is engaged. Instead of acting both on the knife and rotary cutter blades the tool may act on the knife only by removing the grinding elements 13 or by not engaging them with the cutter blades.
Patent GB-985594-A (GB)
Title: Process for the preparation of olefinic copolymers
IPC: C08F210/00
Filed: 1963-02-22
Abstract: Linear amorphous copolymers of propylene or butene-1 and ethylene are made by effecting the polymerization of the monomeric mix in the liquid phase at a temperature of 0 DEG  to - 80 DEG  C., in the presence of a catalyst obtained by contacting an addition complex of a vanadium halide with a "Lewis base" with a dialkyl aluminium halide, by maintaining in the liquid phase a molar ratio between propylene:ethylene of at least 4:1, or of butene: ethylene of at least 25:1.  The polymerization may be carried out in bulk or in the presence of a halogenated or non-halogenated hydrocarbon diluent. The term "Lewis base" means aliphatic ethers, cyclic ethers, tert-amines, or heterocyclic nitrogen bases, e.g. diethyl or dipropyl ether, diethoxyethane, tetrahydrofuran, dioxan, trimethylamine, methyl-diethylamine, pyridine, or quinoline.  The vanadium halide may be vanadium tetra-, or trichloride, or vanadyl trichloride.  The catalyst may be preformed, but is preferably formed in the presence of the monomers.  The process may be effected continuously and the product recovered by known methods.
Patent GB-899962-A (GB)
Title: Improvements in mortar and grouting or pointing compositions
IPC: C04B24/26
Filed: 1960-03-02
Abstract: Mortar for laying tiles, grouting, and pointing comprises equal quantities of white cement and ground quartz, 2 to 5% by weight of a partially hydrolysed polyvinyl alcohol, and, if desired, up to 1% by weight of calcium chloride as hardener, the mixture being made into paste with, e.g. 30-40% by weight of water, based on the weight of the dry mix.
Patent GB-1454350-A (GB)
Title: Sintered vitreous bodies
IPC: C10N50/08
Filed: 1974-02-18
Abstract: 1454350 Sintered glass ceramic composition CARL - ZEISS - STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 18 Feb 1974 [19 Feb 1973] 7362/74 Heading C1M A sintered body, resistant to high temperatures and wear with low friction coefficient and heat expansion, is made from a powder mixture of a devitrefiable lithium aluminium silicate glass and one or more of the oxides of Ni, Co, Fe, Bi and Cr (e.g. 80-20% of the glass and 20-80% of the oxide). There may be included with the oxides one or more of metallic fluoride, (e.g. CaF 2 ), lead oxide, magnesium phosphate, nickel and cobalt. The oxide powder may be pre-sintered and ground prior to use, an organic binder may be included with the powder mixture and the sintering may be effected at 900- 1400 C. (e.g. by hot pressing or extrusion). Suitable devitrefiable glasses disclosed are (1) SiO 2  51%, Al 2 O 3  36À7% and LiO 2  12À3% and (2) SiO 2  71À4%, Al 2 O 3  19%, Li 2 O 3À5%, Na 2 O 0À5%, K 2 O 0À3%, ZnO 1À1%, TiO 2  1-8%, ZrO 2  1À8%, F 0À15% and Sb 2 O 3  0À6%. (All percentages being by weight). The bodies may be used as bearings.
Patent GB-299666-A (GB)
Title: Improvement in an oyster opener
IPC: A47G21/06
Filed: 1928-03-09
Abstract: 299,666. Gwisdalla, P. March 9, 1928. Shellfish openers.-An oyster opener comprises a base member 7 having clamping means 8, 9 for attachment to a table 10, lugs 14 on the member 7 between which a knife 16 is pivoted, an arcuate rack 20, upstanding from the member 7, engaged by teeth 22 on a handle 23 pivoted on the free end of the knife 16, an extension 19 of the member 7 having a lateral projection 18 which co-operates with a lateral projection 17 on an extension of the knife 16, and a strengthening-member 24 joining the lugs 14 and the rack 20. The oyster is rested on the surface 11 of the member 7, and the knife 16, which is forced down by depressing the handle 23, cuts off a portion of the edge of the shells to permit the subsequent insertion of the projections 17, 18 between the shells. The projections are moved apart, to open the shells, by raising the handle to the dotted position in Fig. 1. In a modification, the knife is not pivoted, but slides between vertical guides.
Patent GB-350017-A (GB)
Title: Improvements in overhead switch fuses
IPC: H01H9/10
Filed: 1930-03-07
Abstract: 350,017. Air-break switches. RUDKIN, J. B., 59, New Oxford Street, London. -(Sprecher und Schuh Akt.-Ges. ; Aarau, Switzerland.) March 7, 1930, No. 7527. [Class 38 (v).] Handles.-An overhead, pole-operated switchfuse has its fuse element journalled in expanding and contracting jaws so as to be capable of being detached and replaced by means of a pole. The fuse 1 carries contacts 2, 3 co-operating with fixed contacts 4, 5, respectively. A pin 8 on either side of the fuse engages in a notch 10 of special shape formed in either limb of a U-shaped bracket 9, to each limb of which is pivoted at 12 a plate 11 biased by a spring 14 so that a notch 13 on the plate almost closes up the notch 10. The circuit is opened at both sets of contacts by inserting a hook on a pole in the aperture 7 so that the fuse 1 hangs down, in which position a bayonet socket on the pole can be engaged with a bayonet extension 21 on the fuse and the latter lifted to deflect the plates 11 and force the pins 8 out of their notches 10, 13. In replacing the fuse, the pole is applied in an inclined position. Contacts.-To support the fuse 1 in its operative position and ensure proper operation, the working contact 3 is provided with a double ramp 24 which engages a roller 16 slidable in slots 17 in plates 18 on either side of the fixed contact 5. A pair of springs 19 connected the ends of the roller 16 with a fixed roller 20 so that, when the ramp 24 engages the roller 16 in closing, the springs first expand and then contract to assist the final closing movement. A quick break also takes place in opening. Alternatively, the ramp may be on a fixed member and the parts 16, 19, 20 on the movable contact.
Patent GB-253612-A (GB)
Title: Improvements in or relating to adjusting devices for electrical instruments
IPC: H03J1/14
Filed: 1925-03-20
Abstract: 253,612. India, Rubber, Gutta Percha, & Telegraph Works Co., Ltd., Spinks, W. G., and Keeley, T. J. March 20, 1925. Wireless tuning-apparatus, adjustment devices for.-In coarse and fine adjustment mechanism for electrical precision instruments such as variable condensers, inductances, &c., having two co-operative gear members, and wherein the operating-spindle connected with one of the members is mounted so that it is free to rotate about its longitudinal axis when the gears are in mesh, and to swing about a transverse axis when the gears are unmeshed, the operating-spindle is mounted at one end to provide for the movements referred to. As shown, applied to a variable condenser, Fig. 2, the operating-spindle 13 carries a worm 10 meshing with a wheel located under the instrument dial, the spindle being mounted at one end in a ball bearing 14 and passing through a cam slot 18 in a plate 15, Fig. 5, which forms part of an attachment plate 16. A spring 19 keeps the gears in mesh and together with the cam slot forms a snap-over locking device for the spindle in either of its positions. Alternatively the cam surface may be formed on the spring itself. The plate 15 is provided with a zero mark 20 and the operating-spindle with a scale drum 21. Another pointer 23 extending from the balljoint 14 co-operates with the main scale. As applied to an inductance, Fig. 6, the movable coil holder spindle 24 carries a worm wheel 110 and is provided with rubbing electrical contacts 28. The device may be in the form of an attachment which may include the wheel 110.
Patent GB-302842-A (GB)
Title: Improvements in or relating to shelters or sheds for aircraft
IPC: E04B1/34
Filed: 1928-03-12
Abstract: 302,842. Wasilkowski, F. March 12, 1928. Aircraft shelters are formed of substantially circular form and the roof is supported by a polygonal ring which is formed as a girder member or members capable of resisting bending and compressive stresses and is suspended by cables from a central column. The tower 1 is formed of concrete, wood, or metal, and carries an upper ring 2 to which are fastened double chains 3 carrying at their outer ends a polygonal ring 4 which is stiffened by vertical and horizontal girders 6, 5, respectively. The angular points of the ring are also connected by anchoring cables 7 to a lower ring 14 on the central column, and to prevent rotation alternate points of the ring are connected by double-tie cables 8 to a platform 15 on the central column. Radial lattice girders 10 are linked at their inner ends to the upper ring 2 and at their outer ends by tie-rods 11 to the polygonal ring and are stiffened in pairs by means of lattice girders. The radial girders 10 are arranged between each pair of supporting stays. The arcuate panels I-VIII are formed of canvas or the like, or of upright lattice girders 29, and may be arranged to slide over each other in guides on the ring and lower foundation, and they may be all slidable or only part slidable. A rotary floor 17 may also be provided. In a modification, Fig. 3, the polygonal ring is formed from separate jointed lattice girders 21 suspended as before by double-tie members 20 and stiffened by cross cables 22 connecting alternate joints in the ring. To prevent oscillation and rotation, the cables 23 and 34 are provided connected to the central column, and the covering of the structure is supported by cables 26 connected to the central column, the polygonal ring 21, and uprights 25 supported on the cable. 24 stretched also between the central column and the ring. Further upright suppurts 28 are also provided below the uprights 25 and bear at their lower ends on the anchoring cable 23. The aeroplanes are packed in various ways upon the floor and one method is shown in Fig. 10.
Patent GB-499163-A (GB)
Title: Method of manufacturing tissues and tissues comprising a base or background obtainedby said method
IPC: D04D7/00
Filed: 1938-03-11
Abstract: 499,163. Embroidery. FONJALLAZ, (nÚe KERNEN), B. March 11, 1938, No. 7615. [Class 112] [Also in Groups VIII and IX] Toilet accessories, millinery, furniture decorations, mats, &c. are made by first interlacing sisal threads on a frame with points or a perforated sheet of paper, or the threads may be simply laid criss-cross and stuck or sewn together at the crossing places. The base fabric is removed from the frame by lifting it off the points. If a paper backing is used, it may be removed in pieces. The Figure shows three forms of the completed tissue, made by knitting, crocheting and embroidering respectively over the base fabric.