baber/WOPTO huggingface dataset:
Patent GB-1517594-A (GB)
Title: Method of joining together workpieces of polyvinylidene fluoride
IPC: B29C65/02
Filed: 1976-04-14
Abstract: 1517594 Seaming non-metallic sheet material PRODUITS CHIMIQUES UGINE KUHLMANN 14 April 1976 [16 April 1975] 15317/76 Heading B5K A surface of a polyvinylidene fluoride workpiece is joined to a surface of another polyvinylidene fluoride workpiece by coating at least one of the surfaces with a solvent which will dissolve polyvinylidene fluoride when heated or with a solution obtained by dissolving polyvinylidene fluoride in such a heated solvent, bringing the two surfaces into contact and then heating the contacted surfaces to a temperature above 100‹ C. The solvent used to coat the surfaces or to prepare the polyvinylidene fluoride solution is a polar aprotic solvent or a mixture of such solvents. Specified solvents are dimethylformamide, diemthylacetamide, tetrahydrofuran, dimethylsulphoxide, cyclohexanone hexamethylphosphoramide and butyrolactone. If a solution is used, it may be obtained by dissolving in the solvent 0À1 to 20%, preferably 12-14%, by weight of polyvinylidene fluoride. The solution may be thickened by the addition of an inert filler, e.g. colloidal silica or a montmorillonitic clay. If a solvent is used to coat the surfaces, it may be applied either hot or at ambient temperature. Heating of thecontacted surfaces may be carried out by a hot air torch, a gas torch with flame protector screen, an electric resistance heating strip, a thermofluid or a kiln. Preferably the temperature is in the range 120-170‹ C. The workpieces may be pipes having a wall thickness of at most 10 mm.
Patent GB-149819-A (GB)
Title: Improvements in buckles
IPC: A44B11/24
Filed: 1919-06-18
Abstract: 149,819. Hermann, H. G. June 18, 1919. Buckles. - A double buckle is provided with three strap loops or guards 16, 17, 18, two being located on one side while the other 17 is situated on the other side of the buckle frame. The frame and loops may be made from a single piece of bent wire.
Patent GB-143071-A (GB)
Title: Improvements in and relating to demountable rims for vehicle wheels
IPC: B60B23/00
Filed: 1919-06-19
Abstract: 143,071. Jameson, E. E., and Kameron, T. June 19,1919. Detachable-rim attachments to wheels.-The periphery of the felloe 12 is bevelled and has inclined slots 16 extending from a stop-flange 14 to the other side, and the rim is provided with a correspondingly bevelled inner surface and shoulder 14a and a series of projections engaging the slots. The parts are locked by a ratchet surface 29 on the rim engaged by a spring-pressed ratchet plate 24 mounted in a recess on the felloe. The locking-device is released by the rod 27 and a cam-lever 31.
Patent GB-1080941-A (GB)
Title: Probe
Inventor: ARNSBY BERNARD FRANK
IPC: G02B6/38
Filed: 1966-04-07
Abstract: 1,080,941. Light guides. STANDARD TELEPHONES & CABLES Ltd. April 7, 1966, No. 15556/66. Heading G2J. [Also in Divisions G1 and H2] A probe assembly comprises a shell closed at opposite ends by plugs and has at least one spring-loaded probe which at one end runs through a channel in the first plug and protrudes beyond its outer face, and at the other end fits into a hole in the second plug which is provided with means to carry signals from the probe. An electrical probe for the measurement of the resistivity of crystals is described (see Division G1), but it is stated that the probe may be used for making contact between an optical fibre bundle and a surface.
Patent GB-121617-A (GB)
Title: Improvements in the Manufacture of Chromium and Iron Compounds.
IPC: C01G37/04
Filed: 1917-10-26
Abstract: 121,617. Craig, T. J. I., and Spence & Sons, P. Oct. 26, 1917 Chromium salts; iron salts.-Mixed solutions of chromic and ferric salts, for use in dyeing, tanning, &c., are prepared by treating solutions of chromic acid compounds with iron or reducing compounds of iron; the acidity of the solution may be adjusted to give acid, neutral, or basic products. According to the reducing power of the iron compound or iron used, the molecular ratio of chromium to iron in the products is greater than, equal to, or less than unity. Examples of the reduction of sodium bichromate solution by iron pyrites, metallic iron, and ferrous chloride, all in the presence of hydrochloric acid, are given; ferrous sulphide and sulphite also are specified as reducing agents. Reference has been directed by the Comptroller to Specifications 4890/96, [Class 15, Bleaching &c.], 14052/97, 5902/03, and 16887/07, [Class 76, Leather].
Patent GB-235883-A (GB)
Title: Process for making allium preparations for medical use
IPC: A61K36/8962
Filed: 1925-06-16
Abstract: 235,883. Chemical Works, (formerly Sandoz). June 17, 1924, [Convention date]. Medicines for internal use.-Odorless dry preparations of onion, garlic, or other plants of the genus Allium are obtained by drying, at low temperature, a mixture of the chopped bulbs or their juices with vegetable or animal charcoai. The mass obtained may be powdered, and a further small quantity of charcoal may be added to eliminate any odour which may appear at this stage.
Patent GB-1474327-A (GB)
Title: Pipe coupling
IPC: F16L37/086
Filed: 1975-04-16
Abstract: 1474327 Pipe coupling HYDROTECH INTERNATIONAL Inc 16 April 1975 [1 May 1974] 15695/75 Heading F2G Apparatus for connecting pipes comprises two coupling members 11 and 12 which may be welded to pipes (13) (Fig. 1, not shown) and 14 respectively, the member 11 comprising a flange 17 which may be accommodated in a housing 20 on the member 12 and the member 12 being provided with a protrusion 50 for engaging a recess 47 in a flange 45 to prevent radial movement of the housing 20 when the flange 17 is accommodated therein, the apparatus further comprising locking means, movable between release and hold positions to respectively admit the flange 17 into the housing 20 and secure the flange therein, and means for moving the locking means between said release and hold positions. The locking means may comprise circumferentially spaced locking elements 30 which are urged by a spring 40 into the hold position and which may be moved between the hold and release positions by means of pistons connected by rods 38 to respective elements 30, which pistons are acted on by hydraulic pressure applied to cylinders 39 in which the pistons are located. Each locking element 30 is prevented from rotating by a pin 33 engaging a groove 34. A seal 23 is provided for sealing between faces 18 and 21 of the flange 17 and housing 20 and the seal may be pressurized through a valved port 24. The faces 18 and 19 may be inclined at 30 and 15 degrees respectively relative to a plane perpendicular to the axis of member 11.
Patent GB-542849-A (GB)
Title: Improvements relating to hoisting or hauling mechanisms
IPC: B66D1/30
Filed: 1940-10-25
Abstract: 542,849. End stops for winches. ROE & CO., Ltd., A. V., and REDRUP, C. B. Oct. 25, 1940, No. 15703. [Class 78 (v)] , In winches having spirally grooved drums the cable b near its point of attachment to the drum passes under a hook, the shank d of which is slidable in a slot e in the drum face. Before the cable becomes completely unwound it draws out the hook and this; rotating with the drum, strikes a stationary abutment f and arrests the drum. Damage to the cable anchorage to the drum is thus prevented. The soft f may form part of the winch casing.
Patent GB-689439-A (GB)
Title: N-mono- and di-oxobutyl-para-aminosalicylic acids
Filed: 1951-07-03
Abstract: The invention comprises N-mono-g -oxobutyl- and N-di-g -oxobutyl-p-aminosalicylic acids and their alkaline earth and alkali metal salts, and a process for the preparation of the above compounds by reacting p-aminosalicylic acid or its alkaline earth or alkali metal salts with vinyl methyl ketone or a beta-halogenoethyl methyl ketone, e.g. the chloro- or bromo-compound, or by treating N-mono- or di-3-butinyl-p-aminosalicylic acid with water in the presence of acid mercuric salts, or by the action of vinyl acetylene on p-aminosalicylic acid in the presence of water and in the presence of acid mercuric salts.  When a beta-halogeno-ethyl methyl ketone is employed in the reactions referred to above, a hydrogen halide acceptor may be used, e.g. pyridine, or sodium carbonate or bicarbonate.  An organic solvent miscible with water may be added to the reaction using vinyl acetylene.  The alkali metal and alkaline earth metal salts may be formed from the free acids by normal methods, and the salts may be converted into the free acids.  In the examples, N-g -oxobutyl-p-aminosalicylic is prepared and its sodium salt.
Patent GB-253952-A (GB)
Title: Process and apparatus for rendering fat and oil containing solids of animal origin
IPC: C11B13/00
Filed: 1926-06-22
Abstract: 253,952. Allbright-Nell Co., (Assignees of Laabs, W.). June 22, 1025, [Convention date]. Fats and fatty oils, extracting. - Fat and Oil containing solids, e.g. animal refuse, offal &c., are rendered down by treatment with steam under pressure in the presence of moisture at temperatures above 212 F., but insufficient. to cause solution of the mucilaginous constituents. The steam and pressure are obtained from the moisture developed during the disintegration and excess steam is vented as the process proceeds until when disintegration is complete the moisture content of the residues is about 17--35 per cent. indirect heating being then continued with reduction of temperature and pressure until the moisture content is below 17 per cent. The plant comprises a cooker having a charging dome, 19 extending through a charging floor 48 and a vacuum vapour discharge pipe 49 connected to a pump 50 and provided with a valve 51, bypass 52, and vent pipe 54. The residues are removed from the cooker into a grease pan 56 when solid materials separated by the screen 57 are removed by a conveyer to the changing floor when the larger bones and foreign material are separated on a rotary screen 61 and fall on to a tempering apparatus 64. The cooker, Fig. 1, comprises outer and inner shells 1, 2 closed by heads 4, 5 supporting a shaft 8 carrying blades 10 provided with agitating and lifting faces, the central blades under the dome being in alignment while the remainder are offset at 120. A discharge opening 30 is closed by a plate 31 by a link 3 to a inner plate 33 and provided with a grease drain cock 35.
Patent GB-699410-A (GB)
Title: Improvements in or relating to screw and nut devices
IPC: F16H25/22
Filed: 1950-06-23
Abstract: 699,410. Screw-and-nut gearing. STRANDGREN, C. B. June 23, 1950 [July 13, 1949], No. 15752/50. Class 80 (iii). [Also in Group XXXIV] In a roller bearing arrangement for a nut and screw device of the kind in which a plurality of threaded rollers 8 are disposed between and engage the threads of the nut 1 and screw 6, the threads of the rollers have the same spiral angle as the threads of one of the relatively rotatable members, and a different spiral angle from the threads of the other member. The common spiral angle may be 90 degrees. Sliding action between the rollers and member having threads of the same spiral angle is prevented by providing the ends of the rollers with toothed rims 10 which mesh straight teeth 11 on the said member. The nut member may be in two parts 1, 1a, Fig. 7, keyed together by longitudinal keys 16 and urged axially towards one another by means of a flanged sleeve 18 and a screwed ring 20 so that play between the threads may be avoided. The numbers of threads of the nut and screw portions are different, each roller has only one thread, and the number of rollers is at least equal to the difference between the number of threads of the nut and of the screw, the number of threads of the nut being at least three. Suitable thread profiles are described.
Patent GB-818085-A (GB)
Title: Improvements relating to balance chains
Inventor: HASSAN WALTER THOMAS FREDERICK
IPC: B66F9/08
Filed: 1956-05-22
Abstract: 818,085. Belt gearing. ISO-SPEEDIC CO. Ltd. May 10, 1957 [May. 22, 1956], No. 15820/56. Class 80 (1). [Also in Group XXV] Some of the link plates of a multiple plate balance or hoist chain project beyond the edges of the remainder for engagement in an annular groove in the peripheral surface of a pulley. The chain shown comprises two sets of plates 2 arranged one on each side of a set of guide plates 4 and pivoted thereto by pins 10 which are locked in position by split pins. Each plate 2 has a curved inner edge 5 which fits the periphery 6 of a pulley 7, rounded corners 14 to permit bending of the chain around the pulley, and sharp corners 16 to limit reverse bending. Each plate 4 has a projecting portion 8 which enters a groove 9 in the pulley and has a curved edge 12 which conforms with the curvature of the bottom of the groove 9 while leaving a small clearance 13 therebetween. Each plate 4 also has sharp corners 16 to limit reverse bending. Additional sets of plates 2 may be provided at each side of the chain.
Patent GB-759559-A (GB)
Title: Improvements in or relating to dispensing device
IPC: B25H3/00
Filed: 1954-05-28
Abstract: 759,559. Hoppers. DOEPKE MANUFACTURING CO., C. W. May 28, 1954 [March 2, 1954], No. 15825/54. Class 78 (1). [Also in Group XVII] A combined hopper and shoot comprises a receptacle 11 pivotable about an axis 12 to a vertical position so that a container 33 may be placed in it, whereafter the receptacle is inverted as shown to pour out the contents of the container 33 to a dispensing shoot 25 formed by one end of the receptacle 11. A gate 34, for varying a throat opening 35 to the shoot 25 is adjustably bolted to a support 37 pivoted at 38 to the receptacle 11. The support 37 also carries a plate 41 that can swing to a closed position, as shown, where it is retained by a pair of spring-urged latches 51. The plate 41 then retains the container 33 in the otherwise openfronted receptacle 11. To place the container 33 in the receptacle, the receptacle is rotated about the pivots 12 to an upright position. The latches 51 are released and the support 37 is rotated about the pivots 38 such that the plate 41 swings outwardly until it is secured by a latch 61 pivoted to the receptacle. The container 33 is then moved into the receptacle 11 through the open face 24, the latch 61 released and the plate 41 swung back to its closed position and held there by the latches 51. The receptacle 11 is then inverted and articles flow from the container 33 to the shoot 25 ready for use when required.
Patent GB-544594-A (GB)
Title: Improvements in or connected with electric switch bases or the like
IPC: H02B1/42
Filed: 1940-11-02
Abstract: 544,594. Switch bases. TUCKER & CO., Ltd., J. H., and FUKE, F. C. Nov. 2, 1940. No. 16017. [Class 38 (v)] The slots 4, 5 for fixing-screws in a switch to base 3 are angularly placed to one another to facilitate minor adjustments of position.
Patent GB-1256227-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: SMITH PETER ROY
IPC: F28D1/03
Filed: 1968-04-03
Abstract: 1,256,227. Heat exchange elements. ASSOCIATED ENG. Ltd. 26 March, 1969 [3 April, 1968], No. 16042/68. Heading F4S. In a radiator comprising a plurality of spaced apart tubular passages 1 each made from a pair of strip elements 2 of aluminium foil having a thickness up to 0À012 inch, each tubular passage 1 is stiffened by means of a solid strip 10 of square or rectangular cross-section bonded to the opposite side walls of the passage 1. Cooling fins can be bonded to the external surfaces of the tubular passages.
Patent GB-661104-A (GB)
Title: Improvements relating to resilient supports
IPC: F16F1/54
Filed: 1948-06-15
Abstract: 661,104. Resilient mountings. S. A. G. A. SOC., APPLICAZIONI GOMMA ANTIVBRANTI. June 15, 1948 [uly 9, 1945], No. 16127/48. Class 108(iii). The invention relates to resilient supports of the type consisting of two or more rubber blocks bonded sandwichfashion between three or more parallel rigid plates, each plate, or each plate separating a pair of rubber blocks, being a unitary member. According to the invention, the deformation in use of the support in a direction perpendicular to the planes of the rigid plates is reduced, as compared with what it would be if it were based simply upon the normal modulus of elasticity for compression of the rubber of the blocks, by forcing the metal plates closer together against the resilience of the blocks. The " Normal " modulus of elasticity is defined as that which corresponds to the stress-free condition of the rubber. In the construction shown in Fig. 1, blocks 2 of rubber are each bonded between a respective side face of a member 1 and a respective plate 3. The plates 3 extend beyond the rubber in a direction normal to the drawing and the extensions are bolted at 6 to opposed flanges 4a of a member 4. The distance between the flanges 4a is such as to put the blocks 2 under pre-compression. In a modification, Figs. 3, 4, (not shown), the member 4 is replaced by bolt and nut means acting directly between the plates 3 to apply the pre-compression. According to the Specification as open to inspection under Sect. 91, in the construction shown in Fig. 5 (Cancelled), two rubber annuli 12 are each bonded between a respective rigid sleeve 11 and an outer rigid sleeve 13. The members (not shown) between which the device is interposed, are connected respectively to the sleeve 13 and an inner sleeve 10 having diametrically opposed arms 10a. The extremity of each arm 10a engages a respective slot formed by a recess 13a in the member 13. Keys 106 serve to secure the sleeves 10, 11 against relative rotation and are arranged so that the bushes 12 are prestressed in torsion. In a further modification (not shown) a rubber annulus is bonded to inner and outer rigid sleeves, and the annulus is pre-stressed, either by outwardly expanding the inner sleeve or by contracting the outer sleeve. This subject-matter does not appear in the Specification as accepted.
Patent GB-748956-A (GB)
Title: Improvements relating to escape equipment for aircraft
Inventor: CHAPLIN HERBERT EUGENE
IPC: B64D25/10
Filed: 1953-06-11
Abstract: 748,956. Aircraft ejectable seats. FAIREY AVIATION CO., Ltd. Sept. 10, 1954 [June 11, 1953], No. 16144/53. Class 4. An aircraft includes an ejector seat 1 firable by a gun 4, a releasable cockpit hood 8, a blind 19 adapted to be drawn over the pilot's face, means associated with the blind and arranged to release the cockpit hood when the blind is drawn over the pilot's face, and a lanyard connected between the hood and gun so that as the lanyard tautens it will initiate firing of the gun. As illustrated, the seat 1 with foot rest 3 is ejectable on rails 2. A handle 20 is adapted to pull down the blind 19, thus actuating a cord 5 to prime the gun, and a cord 17 releasing a catch 12 engaging a step 13 on the cockpit hood frame 9, so that the hood 8 is raised by spring- pressed plungers 14 about a pivot formed by a notch 10 at the rear of the frame engaging a triangular bar 11. The airstream then completes the jettison of the hood, to tighten a lanyard 23 to fire the gun and eject the seat. A pull on the cord 5 preferably initiates operation of a timedelay mechanism which primes the gun, ensuring that the hood is clear of the seat trajectory. The lanyard 23 can be disconnected and the catch 12 released manually to release the hood alone. In case the hood jams, cord 6 is operable manually to fire the seat and pilot through the hood. Disconnection of the lanyard and release of the hood may be effected from outside. Specification 583,257 is referred to.
Patent GB-1041657-A (GB)
Title: New or improved heat-insulating panel for use in the erection of cold-rooms and cold-rooms constructed therefrom
Inventor: HEMMINGS WILLIAM KEITH
IPC: F25D23/06
Filed: 1964-04-18
Abstract: 1,041,657. Refrigerators. C. HEMMINGS & CO. Ltd. April 20, 1965 [April 18, 1964], No. 16189/64. Heading F4H. [Also in Division B4] A cold room incorporates or comprises panels comprising a pair of rectangular inner and outer facing or cladding sheets of metal, metal alloy, plywood, hardboard or other suitable material between which is adhesively bonded a heatinsulating core of a rigid foamed plastics substance, and at least one side edge of said core is covered with a resilient layer or pad of fibreglass, neoprene or other suitable resilient insulating material. Means for interconnecting said panels are provided.
Patent GB-733862-A (GB)
Title: Improved process for the removal of asphaltic constituents from residual oils
IPC: C10G21/00
Filed: 1952-06-27
Abstract: An asphaltic residual hydrocarbon oil is blended with a hydrocarbon cycle oil (which boils above about 700 DEG  F. and which is obtained from a catalytic cracking operation) before being deasphalted with the aid of a hydrocarbon deasphalting solvent. The deasphalted product is suitable for use as a feedstock to a catalytic cracking operation or as a feedstock for the production of lubricating oils. The hydrocarbon deasphalting solvent may comprise low boiling hydrocarbons, for example those containing from 2 to 5 carbon atoms in the molecule, or mixtures thereof. Particularly suitable deasphalting solvents comprise propane and butane.  A process is described in which (a) crude petroleum is distilled to yield gases, light and heavy naphthas, gas oil and reduced crude; (b) the reduced crude is blended with cycle oil and then propane-deasphalted; (c) the deasphalted product, blended if desired with a portion of the gas oil fraction mentioned under (a), is catalytically cracked employing a fluidized catalyst and means for regenerating spent catalyst; (d) the cracked products are fractionated to yield gas, gasoline, heating oil, light cycle oil and a heavy cycle oil bottoms fraction; and (e) a portion of the heavy cycle oil mentioned under (d) is recycled for use as the cycle oil employed in stage (b).  A list of catalysts suitable for use in stage (c) is given.
Patent GB-470665-A (GB)
Title: A new or improved toast rack
IPC: A47J37/06
Filed: 1936-06-11
Abstract: 470,665. Toast racks. TERRY& SONS, Ltd., H., and TERRY, A. V. June 11, 1936, No. 16288. [Class 128] In a toast rack the convolutions of an opencoiled spiral spring or springs provide resilient gripping jaws for the toast slices. The spring a, which is anchored at b<2> to the frame band has a finger-piece a<1>, rests on the side members of the frame and through it runs a rod c secured to the frame.
Patent GB-247820-A (GB)
Title: Improvements in railway sleepers and means for securing rails thereto
IPC: E01B3/18
Filed: 1925-06-24
Abstract: 247,820. Snyder, J. G. June 24, 1925. Chains with adjustable or separate jaws; sleepers, metal. - A base plate 8, Fig. 2, secured to the sleeper 1 is slotted at each end to receive a bolt 7 which secures the rail clamp 16 and has its head 6 received in a groove formed by a central depression 3 in the sleeper. The slot in the plate 8 may extend throughout the plate and has opposite notches 12, 13, Fig. 8, which may be square or dovetailed to receive a corresponding projection 24, Fig. 9, on the clamp 16. A series of dovetail notches may be provided for adjustment of the clamps. For track-circuit work, the sleeper may be made in halves 1', 1<11>. Fig. 5, with their ends interfitting and separated by insulation 28 used also around the rivets. To prevent damage, the sleeper edges overlap the insulation.