baber/WOPTO huggingface dataset:
Patent GB-1504298-A (GB)
Title: Interleaving magnetic components
IPC: B23P11/00
Filed: 1975-05-22
Abstract: 1504298 Assembling magnetic cores MAGNETIC & ELECTRICAL ALLOYS Ltd 22 May 1975 [29 May 1974] 23863/74 Heading B3A [Also in Division H1] In apparatus and method for interleaving magnetic laminations in the construction of magnetic or transformer cores, four parallel non- magnetic rods 1, 2, 3, 4 (Fig. 1) extending between end plates 5, 6 are supported with 1, 2 fixed and 3, 4 horizontally slidable in slots 7, 8. Supports 2, 4 are rotatable by knobs 10 and are diametrically slotted with the slots staggered inter se. A magnetic flux generator underlying the supports has a laminated 3 limb core 11 (Fig. 3) and D.C. energizing coil 12 the lines of whose field lie in planes perpendicular to the supports. Unsymmetrical E-laminations are similarly oriented in substacks of equal numbers of laminations 13 and are hung on the pairs of supports 1, 2, 3, 4 respectively with the slots facing downwards. On energization the laminations separate and are distributed so that rotation of supports 2, 4 to face the slots upwards allow laminations to drop into successive slots for magnetic and gravitational retention. After de-energization supports 3, 4 are pushed towards supports 1, 2 until the sub-stacks formed therein interleave; after which supports 2, 4 are rotated to their original positions an the interleaved stacks are manually compressed and removed. Sub-stacks are formed (Fig. 4, not shown) by stacking laminations at random on an inclined stepped support carried by a vibrator, so that they become aligned into packs defined by the steps of the support.
Patent GB-1300205-A (GB)
Title: Improvements relating to a level regulating valve
IPC: B60G17/052
Filed: 1971-04-19
Abstract: 1300205 Suspension levelling valves ROBERT BOSCH GmbH 19 April 1971 [13 March 1970] 23958/71 Heading B7D [Also in Division F2]  A levelling valve for a vehicle suspension comprises an inlet valve 3, an outlet valve 5, an actuating shaft 12 for rotation in response to variations in suspension height, a beam member 13 slidably received in a transverse hole 16 in the actuating shaft 16 with its ends co-operating with stems 31, 32 for actuating the valves 3, 5, and adjusting members 17, 18 having eccentric portions 23, 24 which cooperate with valve adjusting sleeves 27, 28 for the purpose of adjusting the heights of the seat members 37, 38 of the valves 3, 5. The valve housing 2 has an inlet connection 64, an outlet connection 68 and a connection 67 for fluid suspension springs. Radial passages 39, 40 are provided in the underside of the seat members 37, 38 and flow through axial bores 35, 36 in the seat members is throttled by the stems 31, 32. A non-return valve 4 is provided between the inlet valve 3 and the spring connection 67. The valves 3, 4, 5 have spring-loaded elements 57, 58, 59 attached by releasable clamps 60, 61, 62 to holding members 54, 55, 56 secured by a common retaining pin 63. Springs 48, 49, 50 interposed between the seat members 37, 38, 41 and holding members 54, 55, 56 act upon seals 45, 46, 47 and 51, 52, 53. The adjusting sleeve 27 has a seal 29 and the adjusting sleeve 28 has a passage 30 for conveying leakage to the outlet connection 68.
Patent GB-1240048-A (GB)
Title: Preparation of (cis-1,2-epoxypropyl)phosphoric acid and derivatives thereof and intermidiates therefor
Inventor: CHEMERDA JOHN MARTIN
IPC: C07F9/655
Filed: 1969-05-12
Abstract: 1,240,048. (Cis - 1,2 - epoxypropyl)phosphonic acid derivatives. MERCK & CO. Inc. 12 May, 1969 [15 May, 1968], No. 23982/69. Heading C2C. The invention comprises cis compounds of the formula in which X is a halogen atom or a mercapto radical and each R is a hydrogen atom or a substituted or unsubstituted univalent hydrocarbyl or heterocyclic radical or an equivalent of an organic or inorganic salt-forming cation. The compounds in which X is halogen may be obtained by epoxidizing e.g. with an organic per-acid a cis compound of the formula wherein Z is halogen, the latter compound being obtainable by reacting a compound of the formula with an iodobenzene dihalide. The compounds (I) in which X is a mercapto radical are prepared by reacting a compound of the formula in which Z is a halogen atom with a hydrosulphide ion. The compounds in which X is a mercapto radical may be desulphurized e.g. by treatment in solution with Raney-nickel, - copper, -cobalt or -iron or with nickel boride, alkaline sodium plumbite, sodium in liquid ammonia, lithium in an alkylamine or aluminium amalgam, to form a cis compound of the formula With some desulphurizing agents, e.g. Raney nickel or Raney cobalt or aluminium amalgam both desulphurization and ester cleavage may occur when the starting material is a mono- or di-ester. The cis compounds (IV) may also be obtained by dehalogenating and hydrogenating a cis compound (I) in which X is halogen, the process being suitably effected by using hydrogen and a hydrogenation catalyst such as a noble metal catalyst generally in a solvent under hydrogen pressure and in the presence of a base such as triethylamine or sodium acetate. The hydrosulphide ion used in the conversion of the (cis - 1,2 - dihalo - 1,2 - epoxypropyl)phosphonic acid compound (II) may suitably be obtained by dissolving an alkali metal hydrosulphide in an alcohol, e.g. ethanol or methanol. When the product of Formula IV is an ester it may be converted to the free acid or salts thereof. The products (IV) are racemic mixtures which can be resolved into their optically active forms.
Patent GB-639228-A (GB)
Title: Improvements in or relating to the production of caustic magnesia
IPC: C04B2/10
Filed: 1947-08-29
Abstract: Finely ground magnesite, dolomite, &c. is mixed with finely-ground fuel, and formed into porous shaped bodies, e.g. using a rotary drum, preferably employing water as the binding agent, and the bodies are subjected to blast-roasting, e.g. in a Dwight-Lloyd apparatus at a temperature above that of decomposition of magnesium carbonate, but below that at which dead burning of the magnesia occurs, e.g. at 600-1000 DEG  C. 6-12 per cent fuel (for magnesite) or 4-8 per cent (for dolomite) may be used.  Calcium carbonate present in the ore is not decomposed; a portion of the magnesium carbonate present in dolomite may also remain undecomposed.
Patent GB-1305244-A (GB)
IPC: G11B3/28
Filed: 1970-05-18
Abstract: 1305244 Tone arm TOHO MACHINE CO Ltd 18 May 1970 [19 May 1969] 24024/70 Heading G5R In a tone arm arrangement in which arm 1 is carried between horizontal pivots in a U-shaped support 9 fixed on a hollow vertical spindle 8 mounted on base member 10, the stylus pressure and anti-skating force are adjustable by means of a single calibrated control 30. Movement of control 30 rotates cap member 29 and shaft 22 thus varying the position of contact 24 on spring arm 23 along the pivoted arm 18 and the pressure applied to rod 17 which extends upwardly from the arm 18 through spindle 8. The rod engages pivoted arm 19 which in turn applies this variable force to the tone arm at point 28 to vary the stylus pressure. Rotation of the cap member 29 also turns a shaft 37 which varies the -tension applied to yarn 52 by spring wire 40. The yarn extends over the face of a cam member 46 rotatable about a shaft 51 and having an engaging portion 50 positioned in the path of a roller 49 mounted on the end of an arm 48 which rotates with the tone arm 1. The control then adjusts the opposition to turning of the cam member by the arm 48 and thus the anti-skating force. The tension in the yarn is initially set by the screw member 43. The arm is counter balanced by weights 3 and 4 and transversely balanced by weight 32. A dashpot 33 with lift lever 34 is also provided.
Patent GB-254153-A (GB)
Title: Improvements relating to logarithmic calculating-apparatus
IPC: G06G1/12
Filed: 1925-09-26
Abstract: 254,153. Coursey, P. R. Sept. 26, 1925. Slide-rules for effecting computations in regard to condensers in wireless circuits. The instrument, of usual form, bears scales for solving the equation V/I=.000531 #/C where V denotes the voltage across the condenser I is the current flowing through it, # represents the wave-length, and C is the capacity. An additional scale E of frequencies may be added.
Patent GB-1034506-A (GB)
Title: Improvements relating to single sheet presses
Inventor: MILLS EDWARD CECIL
IPC: B30B15/00
Filed: 1963-06-17
Abstract: 1,034,506. Hydraulic presses. WESTERN BOARD MILLS Ltd. June 8, 1964 [June 17, 1963], No. 24078/63. Heading B5F. A press for use in the production of board and other fibrous sheet material has means (16 . . . 21) for ensuring parallel movement of a loaded platen 15 as it is raised by fluid pressure means (23) into pressure contact with a stationary press head 14. As shown, the platen is supported by a linkage system including rods 16, 18 and bell-cranks 17 under the control of a single fluid cylinder unit 21. The fluid pressure means 23 comprises a larger number (in the example sixty) of cylinders 28 and rams 29 (Fig. 5, not shown) which exert only slight pressure on the platen during the ascent of the platen 15. The press frame comprises a number of sections 1 . . . 1D held together by tie-bolts 9, 9A (Fig. 2, 3, respectively, not shown) and provided with a " tunnel " 5 in which the pressure means 23 and platen 15 are mounted. Several cylinders 28 are mounted on a common mounting plate (Fig. 4, not shown) which is insertable into the " tunnel " 5 through an aperture 24. Upper and lower plates 4, 3 of the " tunnel " have reinforcing webs 6.
Patent GB-187795-A (GB)
Title: Improvements in or relating to folding or collapsible bags
IPC: A45C3/00
Filed: 1921-09-10
Abstract: 187,795. English Textilose Manufacturing Co., Ltd., and Whipple, A. A. Sept. 10, 1921. Paper and like bags.-A folding bag is made from a single piece of material cut into the form of a Geneva cross having the centre portion creased diagonally at 2, 3, and the parts intended to form the folding ends creased at 4. To form the bag the sides and ends are raised and their edges 7, 6 stitched together. The sides are provided with handle loops 5.
Patent GB-223715-A (GB)
Title: Means for transporting river craft over stretches of sea
IPC: B63B25/00
Filed: 1923-09-27
Abstract: 223,715. Popper, O. Sept. 27, 1923. Vessels for carrying ships.- An arrangement for the transport of river craft over stretches of sea comprises a floating-dock 1 which below the freebcard line has the external form of an ordinary ocean-going vessel, the upper part being arranged as a platform for the river craft which during transport are situated above sea level. In operation, the dock is partly sunk and the river craft brought into position over the deck, water being then pumped out of the compartments of the carrier vessel. After transport the river craft are floated off by reversing the process.
Patent GB-1536529-A (GB)
Title: Film splicing apparatus
IPC: G03D15/04
Filed: 1977-06-09
Abstract: 1536529 Film-splicing HAMA HAMAPHOT KG HANKE & THOMAS 9 June 1977 [3 July 1976] 24195/77 Heading G2E Adhesive foil assembly 7, for splicing abutting film ends in a splicing apparatus, comprises adhesive foil portions 13 and 14, detachable connecting foil portion 15 and protective hair pin paper strips 9 and 10, foil portion 13 being first applied to the upper side of abutting ends of films 1 and 2 between raised sound tracks 4 and 5 (after removal of strip 9) and foil portion 14 being secondly applied to the lower side of the abutting ends (after removal of strip 10), foil portion 15 thereafter being detached. Films 1 and 2 to be spliced are first placed with overlapping ends between rails 25 and 26 on a hinged flap 21 of the splicing apparatus, the films being located by pins 30 and 31 (mating with stepping holes 6 on the flap) and the films then being held by spring- biased clamping fingers 43 and 44 and abutting ends formed by knife 46 in hinged lid 20. Flap 21 has an opening across which extends a pin 41 and which accommodates a projection 32 on base 19. Projection 32 carries pin 34 and prong pairs 37/38 and 39/40. Foil assembly 7 is then placed over pin 34 (mating with hole 36 in paper strip 10) and pairs of prongs 37 - 40 (mating with holes 17 and 18 in paper strips 9 and 10), paper strip 9 removed manually and foil 13 brought into adhesive contact with films 1/2. Flap 21 is then inverted by being swung about pivot 24, paper strip 10 remaining attached to pin 34 and foil portion 15 being bent at right angles to films 1/2 by the coaction of pin 41 and the upwardly extending edge of ledge 48. Foil portion 14 is then attached to the lower side of films 1/2 and foil portion 15 detached by the successive action of spring-biased shoe 62 and rigid wedge 53 on rotation of spring-biased manual presser 51 about pivot 50.
Patent GB-159242-A (GB)
Title: Improvements in variable speed gear
IPC: F16H15/46
Filed: 1919-10-08
Abstract: 159,242. Tyler, F. W. Oct. 8, 1919. Variable-speed friction gearing of the kind comprising gears such as c, d on a driving-shaft a and gears such as e f, on a driven shaft f adapted to be connected in pairs through countershafts carrying similar gears, has the gears provided with grooved frictional engaging surfaces. In the arrangement shown, there are two countershafts g, h supported in a pivoted frame k, and two others i, j y in a second frame k<1>. Reversed driving may be obtained by connecting a pair of gears on one of the countershafts through a toothed reversing-train.
Patent GB-988093-A (GB)
Title: Improvements in the production of yarns
Inventor: CROOK ALAN
IPC: D02G1/20
Filed: 1961-07-07
Abstract: Bulked, synthetic thermoplastic yarn is produced by heating or tensioning a yarn to develop the latent bulk therein, overfeeding the yarn on a winding machine to form a package in which deformation of the yarn has been reduced according to the required final bulk (the amount of overfeed controlling the amount of deformation in the finished yarn) and heat-treating the package e.g. simultaneously with dyeing, at a controlled temperature to stabilize the yarn.
Patent GB-406383-A (GB)
Title: Improvements in method and means for controlling the burning of fuel in internal combustion engines
IPC: F02M61/16
Filed: 1932-09-03
Abstract: 406,383. Oil engines. BENDIX AVIATION CORPORATION, 105, West Adams Street, Chicago, U.S.A. Sept. 3, 1932, No. 24604. Convention date, Sept. 3, 1931. [Class 7 (iii).] A preliminary charge of fuel is injected on to an incandescent igniter 52 in a flame chamber 35 and ignited, and the main charge is then injected through this burning mass into air compressed in the combustion chamber 16. The first charge enters through a small groove formed in the removable seat 44 of the main fuel valve 42, which has helical paths to cause the fuel to whirl as it issues. The valve 42 is lifted against the pressure of the spring 37 by the pressure of the fuel. The injection-valve body 26 is cooled by a fusible salt or high-boiling-point liquid retained in passages 28 ; the salt &c. may be cooled by water from the main cooling system acting in the channels 33. Air is drawn into the cylinder on the suction stroke past the valve 15 and is compressed on the up-stroke into the chambers 16, 35 ; a plate 57 with baffles 59 prevents much motion of the air in the chamber 35, but a projection 13-which has fins 17 and depressions 19-on the piston causes the air to whirl in the combustion chamber. The plate 57 has depressions 21 to correspond with those 19 in the piston projection. In a sleeve valve engine the air is caused to swirl by baffles in the air inlet pipe and adjacent to the inlet port. In another arrangement with overhead valves, the combustion chamber 172, Fig. 13, is inclined, and the flame chamber 35 and fuel injection valve are to one side of the combustion chamber ; a flange 174 with helical baffles 176 depends from the flame chamber and tends to prevent movement of air in that chamber but assists swirl in the combustion chamber. Pumps.-The fuel is supplied in two stages by a cam - actuated pump plunger 89, Fig. 2, which bears on a lever 82, whose fulcrum is an eccentric strap. This surrounds two sheaves 83, 84 adjustable by the arms 119 and 122. A bye-pass valve 105 is also worked off the lever 82. Adjustment of the arm 119 and sheave 83 alters the duration of injection of the main spray by adjusting the working of the bye-pass ; variation of the sheave 84 alters the time of injection. The lever 82 is raised for the main injection by a cam 73 ; for the preliminary injection a second cam 74 compresses a spring 112, which, when released causes the roller 116 on a bell-crank 77 to strike the end 117 of the lever 82 and move the pump plunger 89. The bell-crank is carried by a lever 81 adjustable with and to a greater degree than the sheave 84, so that if the main fuel injection is advanced at high engine speeds the preliminary injection is still further advanced. In a modification instead of spring actuation of the pump for the preliminary injection, the plunger may be worked by a cam through a lever acting on the end 117 of the lever 82. In another arrangement two cams in sequence act direct on the lever 82 for the two injections.
Patent GB-1358536-A (GB)
Title: Flexible articles
Inventor: BALL E
IPC: B29D23/00
Filed: 1970-05-21
Abstract: 1358536 Laminated materials DUNLOP HOLDINGS Ltd 21 May 1971 [21 May 1970] 24694/70 Heading B5N [Also in Divisions F2 and D1] A hose-pipe comprises a reinforced body including polymeric material and an applied surface layer of non-woven filamentary strip material impregnated with polymeric material. The non-woven material may be formed from randomly orientated filaments bonded by solvent welding or by the application of heat and pressure, and is preferably between 0À003 and 0À010 of an inch thick. The polymeric material with which the non-woven filaments are impregnated may be rubber latex and may be applied by spreading, dipping, spraying or from a roller. Suitable material is formed from filaments of nylon, polyesters, polypropylene, rayon, or other polymeric or synthetic materials or may be of spun yarn, metal wire or glass fibre or impregnated paper. In one form (Fig. 3) the non-woven fibre is contained in one surface of a strip and is backed by a polymeric layer, and in a modification (Fig. 4, not shown) one edge of the strip comprises only the polymeric backing so that the edges may be overlapped. As shown a hose (Fig. 1) is formed by helically winding a strip of polymer impregnated non- woven material 11 on to a mandrel 12. Reinforcing plies 15, 16 are added and the outer layer 18 is of impregnated non-woven strip. The mandrel is removed after vulcanization. The non-woven fabric may be wound with or without overlap to produce single or multilayers. Alternatively the fabric may be laid in longitudinal strips which may be overlapped. The reinforcement strips 15, 16 may be formed by bonding a porous layer of non-woven filamentary material with a layer of parallel longitudinally extending nylon filaments by impregnating both layers with rubber latex (Fig. 2, not shown). Alternatively any of the reinforcing strips described in Specification 1,356,791 or wrapped, braided or helically wound plies of woven, knitted or other material may be used for the reinforcement.
Patent GB-277969-A (GB)
Title: Improvements in or relating to temperature regulation
IPC: G05D23/185
Filed: 1927-09-20
Abstract: 277,969. Askania-Werke Akt.-Ges. vorm. Centralwerkstatt Dessau und C. Barberg-Friedenau. Sept. 21, 1926, [Convention date]. Fluid governors; electric governors; fluid relays.-A method of and apparatus for regulating temperature, in a boiler or oven by controlling the source of heat, e.g. a burnerr c comprises a steam thermometer d communicating with a bellows e which is connected to one side of a pivoted tube f also acted upon by a rod connected to the diaphragm g<1> of a chamber g. Compressed air flows continuously from the tube f and in variable quantity through a tube h into one compartment i of a chamber l, the other compartment k of which communicates with the compartment i by means of capillary tubes or the like and also with the chamber g and a pressure accumulator m. In accordance with the velocity at which the temperature in the boiler rises or falls the pressure in the chamber i also varies and is transmitted through a tube s to a diaphragm u. The latter acts upon one side of a pivoted pipe v, balanced by a spring w, to cause the discharge of compressed air therefrom to pass through the pipe x, or x<2> to one end of the cylinder y and operate the piston y<1> and actuate a valve z in the fuel supply pipe b. The compartment k of the chamber l communicates with a gauge r while both compartments communicate with a differential gauge q. Specification 224,655, [Class 8 (ii), Air and gases, Treating &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that the 'method may be employed also for regulating speeds &c., and describes a modification in which an electric current, varying with the variable to be controlled, energizes a solenoid 3, Fig. 2 (Cancelled). The solenoid acts, in opposition to a condenser 10, on a switch arm pivoted at 4 and moving over a resistance 5, in which a fall of potential is maintained by means of a battery 7, or otherwise. The condenser 10 is in parallel with a condenser 12 and one plate of each is connected by wires 15, 14 and through a resistance 13 to the varying point on the resistance 5. The flow of current through the resistance 13 produces a difference of potential between wires 17, 18 and between the wire 18 and a wire 16 connected to the other plates of the condensers 10, 12. The latter potential difference is utilized for operating a regulating device, e.g. the nozzle v, Fig. 1. This subject-matter does not appear in the Specification as accepted.
Patent GB-669949-A (GB)
Title: An improved process for the purification of benzene or its homologues
IPC: C07C7/148
Filed: 1949-09-27
Abstract: Purification of benzene or its homologues is effected by vaporizing the raw material to be purified and bringing the vapours so produced, in a heated condition, into contact with a solid mixture of alkaline ferric hydroxide and Fuller's earth or other form of magnesium aluminium silicate at elevated temperature.  Preferably the treatment is carried out at a temperature between 100 DEG  and 150 DEG  C.  It is desirable to rectify previously the hydrocarbon oil to be <PICT:0669949/IV (b)/1> treated.  The ferric hydroxide is preferably employed in the form of bog iron mixed with soda.  Instead of Fuller's earth other forms of aluminium-magnesium silicate which, if desired, may be previously subjected to activation with hydrochloric acid can be used.  If the benzene so obtained is required in an even higher state of purity it may be treated subsequently with hot sulphuric acid and hot soda lye.  In the Figure the hydrocarbon oil to be purified, for example, raw benzene, passes through the heat exchanger 2 into the distillation vessel 4 where it is heated by steam.  The hydrocarbon vapours formed pass through the superheater 9 to a closed jacketed vessel 11.  A solid granular mixture of alkaline ferric hydroxide and Fuller's earth or the like is arranged in the vessel 11.  The vapours pass through the vessel 11 and into a vessel 26 in which they are brought into contact with hot sulphuric acid. The vapours then pass into a vessel 17 in which they are treated with hot soda lye or the like. In the example crude benzene, after rectification, is brought into contact with a mixture of bog iron ore, soda and Fuller's earth at a temperature between 100 and 150 DEG C.
Patent GB-221655-A (GB)
Title: Improvements in or relating to window blind or shade rollers
IPC: E06B9/46
Filed: 1923-10-05
Abstract: 221,655. Stead, F. Oct. 5, 1923. No Patent granted (Sealing fee not paid). Roller-blinds, attaching to rollers.-A blind 5 is secured to its roller 1 by wrapping its top edge around a square rod 3 which is then inserted endwise in a longitudinal dovetail slot 2 in the roller which may be provided with a recess 4 to receive the usual operating spring of a spring roller.