baber/WOPTO huggingface dataset:
Patent GB-570137-A (GB)
Title: Improvements in or relating to buoyant rubber compositions
IPC: B29C67/24
Filed: 1941-05-19
Abstract: Buoyancy elements are formed of a plurality of lamin  each moulded from a composition consisting of granulated cork uniformly distributed in and bonded by a matrix of vulcanized rubber.  The lamin  may be united by adhesive or bound together by water-repellent canvas or other material.  The rubber composition is prepared by milling rubber with vulcanizing ingredients, accelerators, fillers, softeners and antioxidants, and, if desired, colouring agents, and then with granulated cork.  The mixture is placed in a mould and vulcanized by heating to about 140 DEG  C., when the occluded air or the blowing agent causes the material to expand.  According to the Provisional Specification, shredded kapok may be used in place of granulated cork.
Patent GB-512427-A (GB)
Title: Improvements in or relating to hydrometers
IPC: G01N9/12
Filed: 1938-03-01
Abstract: 512,427. Specific-gravity estimating-apparatus. PARSONS MARINE STEAM TURBINE CO., Ltd., and PARNALL, W. R. March 1, 1938, No. 6473. [Class 97 (iii)] A column of liquid whose density is to be measured, e.g., brine from an evaporator system, is hydrostatically balanced against a column of standard' liquid, both liquids being continuously circulated and being brought into thermal communication so as to be at the same temperature. As shown, brine flows into the bottom of a vessel 1 at 2 and overflows at the top into the surrounding chamber 3. Water is fed down a helical pipe 5 within the vessel 1 and upwards through an upturned end 6 into a transparent, graduated tube 7. The water escapes from the bottom of the tube 7 and mixes with the brine, allowance being made for this when graduating the scale. The apparatus may be applied to an evaporator system working at a pressure below atmospheric, the jacket then being extended to stand above the top of the tube 7 and being sealed by a cover plate. A non-return valve is provided in the connection between the jacket 3 and brine pump to prevent back flow of brine to the apparatus.
Patent GB-1376827-A (GB)
Title: Process for dyeing in organic solvents
IPC: D06P3/06
Filed: 1972-02-11
Abstract: 1376827 Dyeing in organic liquids SANDOZ Ltd 11 Feb 1972 [18 Feb 1971] 6508/72 Addition to 1344936 Heading D1B Textile fibres, yarns and piece goods which consist of or contain synthetic or semi-synthetic organic materials of high molecular weight and hydrophobic character are dyed with a dispersion of an organic dye or dyes in a liquid organic compound in presence of an alkyd resin at temperatures of 40‹ to 170‹C. Polyesters, polyamides, polyacrylonitrile, polyolefins cellulose di- and tri-acetates are dyed, organic liquids include xylene, perchloroethylene, chlorobenzenes, the alkyd resin is employed in amounts of 0.05 to 5 parts by weight to one part of the dye.
Patent GB-1172166-A (GB)
Title: Telephone Exchange
IPC: H04M3/432
Filed: 1967-02-10
Abstract: 1,172,166. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 10 Feb., 1967 [11 Feb., 1966], No. 6518/67. Heading H4K. In a PABX, special links are provided for allowing an operator to set up a connection between an extension and a pre-recordedannouncement machine (e.g. morning alarm call), the operator withdrawing from the connections as soon as it is set-up without waiting for the extension to reply. The link includes a timing circuit which initiates an alarm if the extension does not reply within a preset period. On closing her keys AB and TW at the operator's position AP, relays E and WKI come up in the link AUe. The operator causes operation of the selectors, e.g. W1 and ringing current is sent when the idle called extension is reached. Wk holds over its second winding when the keys are released (after flickering illumination of busy lamp BL) and the magnetic tape announcement machine AG is preparatorily coupled (a still open) via wk5 to the third winding of the link isolation transformer. When the extension replies his line relay A comes up to complete the connection between AG and the transformer. When the extension replaces his handset, a release relay TR comes up to release the link. Timer ZG energizes alarm lamp Al if the extension does not reply within a set time. The operator may use the link for outgoing dialling signals (Z operated) or for an incoming call (e2 operated) while it is in use for automatically calling the extension.
Patent GB-552313-A (GB)
Title: Improvements in and relating to synthetic resins
IPC: C08F8/28
Filed: 1941-05-23
Abstract: 552,313. Synthetic resin compositions. BRITISH THOMSON-HOUSTON CO., Ltd. May 23, 1941, No. 6613. Convention date, May 24, 1940. Drawings to Specification. [Class 2 (iii)] Resinous products useful for moulding, laminating, coating, adhesive and insulating purposes and for making "safety glass" are obtained by the simultaneous partial or complete hydrolysis and acetalization of a copolymer derived from a plurality of copolymerizable materials one of which is a vinyl organic ester and another is a minor proportion of an organic ether containing a CH 2 = C< grouping and at least one other polymerizable ethenoid grouping, by heating the copolymer with water and one or more aldehydes, ketones or compounds engendering on aldehyde or ketone. Esters included are vinyl esters of saturated and unsaturated, aliphatic and aromatic, monobasic and polybasic acids. Ethers specified include divinyl, diallyl and dimethallyl ethers. Detailed lists of esters, ethers and of suitable copolymerizable substances are given. The copolymer is prepared by mixing and interpolymerizing the components with or without the addition of a catalyst and the process may be carried out under the influence of heat and/or light. Benzoyl peroxide is the preferred catalyst ; other suitable catalysts are specified. It is preferred to carry out this step at 60‹ to 120‹C. and less than 50 per cent. of the ether in the mixture is necessary. The partial or complete hydrolysis and acetalization of the copolymer are carried out simultaneously preferably under acid conditions. Any neutralizing agent may be used, and the process may involve more than one stage using more than one acetalizing agent ; specified are particular saturated and unsaturated aldehydes, ketones and substances engendering aldehydes or ketones. The product may be modified by carrying out the reaction in the presence of other reactants viz. phenols, alcohols, amides and urea compounds ; detailed lists are given. Other specified additions may be made during or after the hydrolysis and acetalization, i.e. hydrolysed wood products, other specified resinous condensation products, natural gums and resins, phthalate and phosphate esters etc.; detailed lists are given. The product may be stabilized by incorporation at any stage of the process of specified inhibitors or stabilizing agents, i.e. phenolic bodies, amines, amides etc.; dyes and specified pigments lubricants, fillers and opacifiers may also be incorporated. Examples involve treatment of copolymers of vinyl acetate and diallyl ether with aqueous hydrochloric and acetic acids and (1) formaldehyde, (3) acetone and (8) formaldehyde and acetamide ; and of vinyl acetate and dimethallyl ether with aqueous hydrochloric and acetic acids and (2) butyraldehyde, (4) methyl ethyl ketone (5) formaldehyde and phenol or (7) p-chlor phenol and (10) formaldehyde and itaconic diamide ; or with aqueous sulphuric and acetic acids, formaldehyde and (6) resorcinol, or (9) urea.
Patent GB-953843-A (GB)
Title: Improvements in or relating to fluid valves
IPC: F16K1/52
Filed: 1963-02-19
Abstract: 953,843. Valves. AGA-PLATFORADLING A.B. Feb. 19, 1963 [Feb. 23, 1962], No. 6615/63. Heading F2V. The closure member 10 of a valve is made of resilient material, e.g. stainless steel, and is of curved formation so that during closure it first makes contact with the seat 9 at diametrically opposite points and is subsequently flattened to close the passageway progressively. The closure member is unattached to the actuating stem 8.
Patent GB-793478-A (GB)
Title: Improvements in or relating to an endless conveyor file for documents
IPC: G06K17/00
Filed: 1956-03-05
Abstract: 793,478. Cabinets; tables. SPERRY RAND CORPORATION. March 5,1956, No. 6902/56. Class 52(3) [Also in Goup XV] The cover 3 of a filing cabinet 1 is provided with pivoted legs 117, joined by a bar 118, at one end 114 so that it can be utilized as a table by hooking the opposite end 113 on to either side of the cabinet 1. Each leg 117 is pivoted on a stud 119 carried by a bracket 120 and has a pivoted latch 121 spring-urged for engagement with a pair of notches 122 in the bracket 120 to hold legs in open and closed positions, a chain 123 pivoted to the latches 121 being pulled to release the legs.. Hooks 124 for engagement with the edge 22 of the cabinet 1 are provided at the end 113 and are on retractable strips 125 mounted between 'channel sections 126, the strips 125 being connected by links 127 to the corresponding leg 117 by means of a stud 128 so that when the legs 117 are in the cover, the hooks 124 are retracted. To assist movement of the legs 117 and hooks 124 to the open position, a spring 130 is positioned between lugs on the plates 125 and channel sections 126. The bottom of the cabinet 1 is formed with channels for a sliding tray 30.
Patent GB-952255-A (GB)
Title: Solution and method for brightening cadmium
IPC: C23F3/06
Filed: 1962-02-22
Abstract: Cadmium surfaces are brightened by treatment in an aqueous acid solution with a pH of 1.0-3.5 and comprising 0.08-1 g/l trivalent chromium ions, 0.1-18 g/l of nitrate ions, and 0.4-5.2 g/l of ions selected from sulphate ions and the combination of fluoride and sulphate ions, the solution containing a maximum of 0.02 g/l of hexavalent chromium ions at a pH of 1-2 and less than 0.3 g/l of hexavalent chromium at a pH of 2-3.5. The solution may also contain 0.1-3 g/l of zinc and/or cadmium ions with a fluoride ion concentration of 0.2-0.4 g/l and a sulphate ion concentration of 0.75-1.5 g/l.  The solution is maintained at 45-150  DEG F. during the process and the base treated may be any cadmium surface such as electrodeposited cadmium or a cadmium coated steel.  The solution is prepared by adding to dilute nitric acid a dry powder mixture of sodium acid fluoride, chromium fluoride, and the sulphate of zinc and/or cadmium. Complex fluoride salts such as fluoborate and fluosilicate may also be added.
Patent GB-727531-A (GB)
IPC: D01H5/26
Filed: 1953-03-13
Abstract: 727,531. Drawing devices for spinning machines. ZINSER TEXTILMASCHINEN GES. March 13, 1953 [March 15, 1952], No. 6923/53. Class 120 (2). A spring-loaded tensioning device for the aprons of drawing heads in spinning machines comprises a bar or rod over which the apron passes and which is connected at one side only to a casing enclosing the spring. The lower apron 1 of a drawing head may be driven by a roller 6 and pass over a deflector rail 7 and a tensioning rod 2 outwardly urged by a spiral spring 5 having one end anchored in a groove in a shaft 9. Instead of a grooved shaft, a smooth spindle may be used, in which case the terminal coils of the spring are reduced in diameter to clamp the spring on the spindle.
Patent GB-1028513-A (GB)
Title: Yarn winding and unwinding
Inventor: BLISS GERALD WILLIAM HARTLEY
IPC: B65H59/06
Filed: 1962-02-23
Abstract: A method of unwinding yarn from a package of the type produced by a builder motion and from which the internal former has been removed comprises placing the package in an upright position, placing on the mouth of the hollow core of the package a spherical ball or other smooth surfaced body of e.g. conical or ovoid shape, and drawing the yarn off in a generally upward direction.  The presence of the ball at the mouth of the core tends to prevent collapse of the windings of the package and so prevent shagging. The package may be placed over a recess adapted to catch the ball when unwinding is completed.
Patent GB-761490-A (GB)
Title: Steroid production
IPC: C07J13/00
Filed: 1954-03-11
Abstract: D 4,17(20) - 3 - keto - 21 - oic acid alkyl ester steroids are obtained by a process which includes the steps of (1) mixing a D -3-keto steroid having at the 17-position a hydrogen atom and an acetyl group, and having two hydrogen atoms at the 2-position of the steroid nucleus, with more than about one molar equivalent each of an alkali-metal base condensing agent and an alkyl diester of oxalic acid, to produce a steroid condensation product which includes a D 4-3,20-diketo-2,21-dialkoxyoxalyl alkali-metal dienolate; reacting the thus-produced steroid condensation product with at least about two molar equivalents of chlorine or bromine but not substantially exceeding that amount required to maintain free halogen in the reaction mixture, to produce a steroid halogenation product which includes a D 4-3,20-diketo-2,21,21-trihalo - 2,21 - dialkoxyoxalyl steroid; reacting the thus-produced steroid halogenation product with at least two molar equivalents each of an alkanol as an alkali-metal base, to produce a steroid reaction product which includes a D 4,17(20)-2-halo-3-keto-21-oic acid alkyl ester steroid; reacting the thus-produced 2-halogenated steroid acid ester with a dehalogenating agent to produce a D 4,17(20)-3-keto-21-oic acid alkyl ester steroid. Diglyoxalation of the D 4-3-keto steroid may be effected with an alkali-metal base condensation agent, e.g. sodium methoxide, and an alkyl diester of oxalic acid and halogenation by means of chlorine, bromine, iodine, t-butyl hypochlorite, ethyl hypochlorite, hypochlorous or hypobromous acids, N-bromosuccimide or N-bromoacetamide; subsequent rearrangement is effected by means of a base, e.g. sodium methoxide, sodium ethoxide, potassium isopropoxide, potassium t-butoxide, potassium hydroxide, trimethylbenzyl ammonium hydroxide, calcium carbonate and silver oxide, and an alkanol, e.g. ethanol, propanol, isopropanol and butanol.  Dehalogenation may be effected with zinc and acetic acid, sodium iodide in acetone, chromyl chloride or deactivated Raney nickel.  As starting materials there may be used progesterone, 11-ketoprogesterone, 11a - and 11b -hydroxyprogesterone.  The 3,11-diketo-4,17(20)-pregnadiene-21-oic acid ester thus obtained may subsequently after protection of the 3-keto group, e.g. by forming a ketal, be reduced with lithium aluminium hydride to produce 11b ,21 - dihydroxy - 4,17(20) - pregnadiene - 3-one, and converted to 11b ,17a ,20,21-tetrahydroxy - 4 - pregnene - 3 - one 17,20 - osmate ester with osmium tetroxide, which is oxidized, e.g. with perchloric or peracetic acids or hydrogen peroxide, to produce 11b ,17a ,21-trihydroxy-4 - pregnene - 3,20 - dione.  Examples employ 11-ketoprogesterone as starting material.  Also mentioned are 9(11)-oxidoprogesterone, 6,11a -dihydroxyprogesterone, 11-keto-12-bromoprogesterone, 12 - ketoprogesterone, 9 - dehydroprogesterone, 16 - dehydroprogesterone and 10-normethyl, 13-normethyl and 10,13-dinormethyl analogues of these.  Specifications 724,094, 761,527 and 761,528 are referred to.
Patent GB-603581-A (GB)
Title: Improvements in or relating to telescopic stands, especially for microphones
IPC: F16B7/14
Filed: 1945-03-19
Abstract: 603,581. Pedestal stands. FOUNTAIN, Ltd., G. R., NOEL, G. E., and OSBORN, B. T. March 19, 1945, No. 7313. Divided out of 603,580. [Class 52(iii)] [Also in Group XXVIII] A clamping ring 17 screwed to the outer member 1 of a telescopic pedestal tightens a split ring 16 of fibre or like material upon the inner tubular member 5, the ring 16 being prevented from rotating by a peg 20 or like device. The lower ends of the tubes 1, 5 may be closed to provide an air cushioning action, the split-ring permitting restricted air leakage, and additional escape holes and a non-return valve may be provided as in Specification 603,580.
Patent GB-1460831-A (GB)
Title: Cascade assembly for a jet propulsion engine thrust reverser
IPC: F02K1/56
Filed: 1974-02-18
Abstract: 1460831 Deflecting propulsion jets AERONCA Inc 18 Feb 1974 [11 April 1973] 7345/74 Heading B7G The thrust of a jet propulsion engine is reversed in direction through a cascade of curved vanes 16 which are positioned in openings formed between side panels 20 and forward and aft mounting rings 12 and 14 forming part of the engine casing. The vanes are mounted on supports 22, which extend a limited distance forwardly of ring 14, and other supports 24 which connect rings 12 and 14. Each support comprises a pair of spaced-apart elongated metal straps 30 joined at their aft ends by a sandwiched fitting 32 which bears against a retaining peg 80 inside ring 14, and joined at their forward ends by a fitting 40 which comprises a lug sandwiched by the straps and a threaded portion 44 engaged by a nut 98. A plurality of plate spacer members 46 formed with interengaging tongues 48 and recesses 50 are sandwiched between the straps 30 and each vane 16 is perforated to receive the tongues 48, the resulting assembly being clamped in compression by tightening of the nuts 98. In the supports 24 the straps 30 extend forwardly to the ring 12 and, for each support, are enclosed, forward of the foremost vane 16, by a tube 100 which, when the support is clamped together acts as a compression strut.
Patent GB-199105-A (GB)
Title: Improvements in and relating to machines for washing, rinsing, sterilising and drying plates and the like
IPC: A47L15/06
Filed: 1922-03-13
Abstract: 199,105. Rodda, R. W. March 13, 1922. Plates, dishes, and the like, washing.-A machine for household use comprises a casing a with one end semi-circular supported in an inclined position and having a paddle-wheel b<@> at the lower end adapted to splash water over the dishes &c. contained in baskets, the dishes resting upon rollers f which are rotated by chain gearing from the driving wheel so that the dishes rotate. The splasher has pivoted blades n which act in either direction of revolution, and a drain opening at the lowest point in the casing is provided. A hinged cover o with catch q and handle s allows of access to the baskets, the handle coacting with a stop r to form a stay for the cover when open. The lower baskets g, m are adapted to contain dishes, while the separate upper basket j has hooks for cups &c. For cleaning pots and pans the baskets may be removed and a brush fitted to the spindle of the handwheel, which is situated at about the centre of the casing, so that brush and paddle are rotated together.
Patent GB-274159-A (GB)
Title: Improvements in ball-race drawers and the like
IPC: B25B27/06
Filed: 1926-03-17
Abstract: 274,159. Mercer, E., and Pankhurst, V. H. Hayes-. March 17, 1926. Removing wheels and other articles from shafts. -A tool for removing ball-races, wheel hubs, pulleys, gears &c. from shafts and having gripping jaws and a screw actuated crosshead which increases the gripping action of the jaws during the removal of the object, comprises curved jaws A connected together by screw bolts F passing through pivot pins E extending from the sides of the jaws, the rear ends of the jaws bearing against the inclined surfaces on the crosshead B through which passes the screw plunger C. Spiral springs D between the jaws keep the crosshead in position and hold the jaw on the ball-race &c. H to 'be removed. The jaws are adjusted to the size of the object by turning the bolts F, and rotation of the screw C bearing against the end of the shaft I increases the grip of the jaws on the object and effects its removal at the same time.
Patent GB-555691-A (GB)
Title: Improvements in or connected with mechanism for the conversion of motion according to one law into motion according to another law
IPC: F16H21/04
Filed: 1942-02-14
Abstract: 555,691. Indicating-apparatus. BARR & STROUD, Ltd., STRANG, J. M., and BELL, I. C. M. Feb. 14, 1942, No. 7370. Divided out of and addition to 555,667. [Class 106 (iv)] [Also in Groups XX and XXIV] In apparatus according to the parent Specification for converting motion according to one law into motion according to another law, and comprising a first element B movable, e.g., with the prism of a range-finder, along a rectilinear guide A, a lever E pivoted at C and slidably and pivotally engaging the element B, and a second element F slidably and pivotally engaging the lever E and movable along a second guide D, the movement of the element F causes the second guide to be displaced relatively to the first guide, so that the element F moves, e.g., in accordance with a uniform scale of a non-linear function of range. The guide D may be a rotatable threaded rod carried by slide blocks J; and the element F may be a nut carrying a pin P engaging a cam slot N fixed in the instrument base. The slot N may cause conversion into a uniform scale of logarithm of range.
Patent GB-1071227-A (GB)
Title: Anchoring device for tunnelling machines
Inventor: ODULO BORIS GEVRILOVICH
IPC: E21D9/10
Filed: 1966-02-21
Abstract: 1,071,227. Tunnelling machines. NAUCHNO-ISSLEDOVATELSKY I PROEKTNOKONSTRUKTORSKY INSTITUT PODZEMNOI GIDRAVLICHESKOI DOBYCHI UGLYA. Feb. 21, 1966, No. 7421/66. Heading E1F. Each of the opposed wall-engaging bearing pads of the anchoring device of a tunnelling machine is connected by braces to either end of a centrally disposed double acting ram assembly and to each other clear of either end of the ram assembly by cross braces so connected to each pad that there may be limited movement between the braces and the pads to permit of expansion and contraction of the assembly when setting or releasing the anchoring device.
Patent GB-229881-A (GB)
Title: Improvements in and relating to electric transformers for use with measuring instruments
IPC: H01F38/30
Filed: 1924-03-24
Abstract: 229,881. Edgcumbe, K., Everett, E. I., and Ockenden, F. E. J. March 24, 1924. Transformers.- A transformer for use with instruments for measuring currents of radio frequencies comprises an annular core a, on which the secondary winding b is evenly distributed, and a primary winding c consisting of a hollow tubular member passing through t h e open in the core and a concentric return member surrounding the secondary winding and core.
Patent GB-1172213-A (GB)
Title: Pressure-Multiplying Booster
IPC: F15B11/028
Filed: 1968-02-15
Abstract: 1,172,213. Work-holders. JERGENS TOOL SPECIALTY CO. 15 Feb., 1968 [1 Nov., 1967], No. 7489/68. Heading B3B. [Also in Division Fl] A clamp 11 for holding a workpiece W against a machine tool bed comprises a lever arm 12 pivoted to a part 13 and urged downwardly against a spring 14 by hydraulic pressure transmitted from a reservoir 21 through a line 20, an intensifier 10 (see Division F1) and lines 19, 18 to the underside of a piston 16, the arrangement being that when the lever arm 12 abuts the workpiece the resulting back pressure set up in line 19 results in closure of a valve in the intensifier which latter then delivers high pressure fluid to the piston 16.