baber/WOPTO huggingface dataset:
Patent GB-581071-A (GB)
Title: Improvements in or relating to laminated springs
IPC: F16F1/26
Filed: 1944-12-04
Abstract: 581,071. Laminated springs. WILLFORD & CO., Ltd., and ONIONS, J. W. Dec. 4, 1944, Nos. 24193 and 25895. [Class 108 (iii)] [Also in Group XXII] Hoops or buckles for laminated springs are made by coiling a length of metal bar to form a single hoop or a length of coiled bar from which a number of hoops are made by dividing by sawing &c. The outer convolutions b may taper off to provide faces at right angles to the'longitudinal axis. The cross-section of the bar may be rectangular, rhombic, rhomboidal, or of angular form as shown in Fig. 7, in which each convolution lies within the angle of an adjacent convolution. Bolt receiving holes c are made in opposite walls of the hoop. Adjacent convolutions may be butt welded or welded at intervals by weld metal received in one or more grooves arranged transversely of the convolutions.
Patent GB-810142-A (GB)
Title: Improvements relating to hydropneumatic accumulators
IPC: F15B1/24
Filed: 1956-08-07
Abstract: 810,142. Hydraulic accumulators. GRATZMULLER, J. L. Aug. 7, 1956 [Aug. 10, 1955], No. 24194/56. Class 69 (2). An hydro-pneumatic accumulator has a member 13 which, immediately after the piston 6 abuts the end 12 of the cylinder 8, engages a washer 4, the washer engaging in its turn an extension 14 on the cylinder end 12 to support a synthetic rubber sealing ring 1 and prevent it from being forced out of its seating by excess pressure of the oil in part 15 of the accumulator. In another embodiment, the stop 14, washer 4, and member 13 comprise one part and the portions 2, 2a of the member 13 comprise a second part. In this embodiment, the ring 1 is placed between two rings of harder material and an anti-friction ring of metal is also provided. Specification 702,088 is referred to.
Patent GB-424648-A (GB)
Title: Improvements in or relating to converting arrangements comprising induction coils
IPC: H02M7/02
Filed: 1933-08-31
Abstract: 424,648. Converting; motors. WAT. KINS, R. C., 81, North Side, Clapham Common, London, and STILES, G. H., 12, Clandon Close, Stoneleigh Park, Ewell, Surrey. Aug. 31, 1933, No. 24205. [Classes 35 and 38 (ii)] Motors with unwound iron armatures.-An arrangement for converting direct current into alternating current comprises an induction coil having its primary winding b supplied from a battery &c. l through contacts h, i these contacts being closed and opened, to make and break the primary circuit, by cams f arranged on an unwound rotating iron armature e which is situated in a gap in the core a and is caused to rotate by magnetic forces produced by the rushes of current in the primary winding. An unsymmetrical alternating voltage is produced in the secondary winding c by the making and breaking of the primary circuit. A condenser o may be connected across the contacts h, i. The ends of the armature e, which may be a star or cross, and the ends d of the core a are recessed so that each of the projecting parts acts as a pole. The converter is stopped by depression of a spring-loaded push piece j which then holds the contacts h and i apart and retains the armature in a position from which it will self-start when j is released. A spark gap n is arranged to cause blowing of fuse m in the primary circuit if an excessive secondary voltage is produced.
Patent GB-813986-A (GB)
Title: Process for producing water-insoluble azo-dyestuffs on the fibre
Filed: 1955-08-23
Abstract: In the production of azo dyes on the fibre, the fibrous material is first treated with an alkali metal salt of a coupling component and then with a bath at pH 5-7 containing a diazonium compound free from acylamino and arylamino groups, a chromic salt of a weak organic acid, such as chromic formate or acetate, and an alkali-metal salt of a phosphoric acid such as an orthophosphate, metaphosphate, hexa-metaphosphate, pyrophosphate or polyphosphate.  The bath may also contain diluents such as aluminium, magnesium and sodium sulphates.  Examples describe the dyeing of cotton, the coupling components employed being 1-(31-hydroxy-diphenylene oxide-21 - carboylamino) - 2 : 5 - dimethoxybenzene, 1 - (21 : 31 - hydroxy - naphthoylamino) - 2 : 5-dimethoxy - 4 - chlorobenzene and 1 - (51 - hydroxy - 11 : 21; 111 : 211 - benzocarbazole - 41-carboylamino)-4-methoxybenzene and the diazonium compounds being the diazo compound of 1 - amino - 2 - methyl - 4 - nitrobenzene, if desired in the form of its diazonium-borofluoride, the diazo compound or diazonium chloride-zinc chloride double salt of 1-amino-2-methoxybenzene - 5 - sulphonic acid diethylamide, the diazonium chloride-zinc chloride double salt of amino-anthraquinone, the diazo compound, or diazonium chloride-zinc chloride double salt, of 1-amino-2-methoxy-5-nitrobenzene and the diazo compound of 1-amino-2-methoxy-4-nitrobenzene, if desired in the form of its acid diazonium-1 : 5-naphthalene-disulphonate.  Specification 413,016 [Group IV], and German Specification 696,362 are referred to.
Patent GB-918175-A (GB)
Title: Pitch
Inventor: BLUNSDEN ARCHIBALD BERESFORD
IPC: C10C3/02
Filed: 1960-07-12
Abstract: 918,175. Pitch. LANE BROS. (TAR DISTILLERS) Ltd. June 26, 1961 [July 12, 1960], No. 24297/60. Class 55 (2). Pitch is formed by mixing carbon, preferably carbon black, with tar, preferably coal tar, prior to distillation. The amount of carbon added is between 1 and 10% by weight, and may be added in finely-divided form or may be injected into the tar as a concentrated dispersion. Alternatively, the carbon may be formed in situ by adding an oxidizing agent, e.g. ammonium persulphate, to the tar.
Patent GB-488243-A (GB)
Title: Improvements in containers for syrup, paint or the like material
IPC: B65D43/24
Filed: 1937-09-08
Abstract: 488,243. Lever - lid tins. HEDGES, C. DE F. Sept. 8, 1937, No. 24457. [Class 66] The lever-lid of a syrup, paint, or like tin is provided with a hook-ended projection 9 extending outwardly from the flange and adapted to engage the rim 5 of the mouth opening to support the lid when removed in an inclined position for draining. The projection may consist of metal strip or wire or may be formed as an extension of the flange 7, and to prevent soiling it may be shaped to lie flat against the inner face of the rim 5.
Patent GB-988047-A (GB)
Title: Method of heat treating a steel sheet
IPC: C21D9/52
Filed: 1961-07-06
Abstract: A method of heat treating steel sheet for electrical use comprises heating one face of the sheet while simultaneously cooling the other. The process may be continuous, the sheet being moved on cooled rollers through a furnace at a temperature of 1050  DEG C. and having an atmosphere of hydrogen.  The steel may be silicon steel containing 0.7-4.3% Si and 0.08% max. C.
Patent GB-1017115-A (GB)
Title: Improvements in or relating to processes and pneumatic spraying applicances for agriculture
IPC: A01M7/00
Filed: 1962-06-26
Abstract: 1,017,115. Crop sprayers. SOC. MECHANIQUE ET TEXTILE DE L'ARDECHE SOTONA. June 26, 1962 [June 27, 1961; Nov. 13, 1961], No. 24561/62. Heading B2F. A crop sprayer comprises a rotating member having a cusp-like point at its centre at which liquid is projected, the liquid then being urged by centrifugal force towards the periphery of the member at which point it is travelling with a component in a direction opposite to that in which the liquid was originally projected, and where it then mingles with an air stream also flowing in said opposite direction. A hollow cylindrical body 1, Fig. 1, is mounted at 3 for rotational adjustment and is flared at 1a for an air inlet and widens at 1b for an outlet for atomized liquid. Liquid, which can be of pasty consistency, is squirted from a nozzle 14 against the tip 12a of a cuspshaped hub 10a of a member keyed at the end of a shaft 6. The member 10 is a dished disc with its concave side facing the nozzle 14. Between it and the nozzle, and mounted on the hub 10a, is another dished disc 12, spaced from the disc 10 and similarly disposed. It is perforated at 12b. The driving shaft 6 carries a fan 9. Centrifugal action carries the liquid to the periphery of the discs, whence it is carried by the air current from the fan in a fine liquid fog, the character of which may be varied by exchanging the fan, as well as by controlling the liquid supply. A modification, Fig. 3 (not shown), includes a set of fixed helical blades for imparting a rotational movement to the air current. The apparatus or more than one such apparatus may be mounted on a single bar with universal adjustment.
Patent GB-1040610-A (GB)
Title: Improvements in or relating to power-assisted steering systems
IPC: F15B9/08
Filed: 1963-06-20
Abstract: 1,040,610. Power-assisted steering. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. June 20, 1963 [June 22, 1962], No. 24585/63. Heading B7H. In a motor vehicle power assisted steering mechanism, a steering shaft 2 is threaded for engagement with a steering nut 9 formed with a piston surface working in a cylinder 3 for power assistance and with a rack 14 engaging a sector 16 integral with a drop arm 19 through which the vehicle is steered. Axial play on the steering shaft is tolerated and limited by a flange 45 fast with the shaft and operating within a recess 82, 83, Fig. 2, formed in the housing and within a stationary ring 74, the shaft being centred in the recess by springs 84, 85, thrust rings 79, 80 and thrust bearings 47, 48. A valve spool 25 is centred on the steering shaft between thrust bearings 50 and 51 acting against the flange 45 and a thrust plate 52, respectively, the spool being prevented from rotating by a spigot 42 operating within a slot 43 which allows axial movement of the spool with the steering shaft. The housing is formed with ducts for conveying pressure to opposite sides of the piston and with a fluid inlet 37 and outlet 38. When a steering movement is being effected, reaction from the steering wheels causes axial movement of the steering shaft and consequent operation of the valve spool 25 to direct fluid to appropriately provide power assistance on the piston 9. A pressure relief valve 91 having differential fluid surfaces and acted upon by a spring 94 is provided between the fluid inlet and outlet ducts. The steering shaft is rotatably mounted by bearings 57 in a sleeve 56 which is also sleeved for penetration within a flanged extension 61 of the valve spool 25 leaving a space 66 which is connected by a line 65 to the space 12 at one end of the piston 9, which space is also connected with the space within the piston closed by a plug 13 whereby fluid pressure on the end 4 of the shaft is balanced by the pressure in the space 66 on the end of the valve spool 25. Road shocks acting through the steering linkage are said to move the steering shaft and thereby the valve spool to provide fluid pressure in a manner which opposes the shock.
Patent GB-758010-A (GB)
Title: Polymerisation products
Inventor: JACOBS DAVID IAN HUTCHINSON
Filed: 1953-09-05
Abstract: Resinous products are prepared by (a) refluxing the dimer of m-isopropenyl phenol with epichlorhydrin in the presence of sodium hydroxide solution; or (b) refluxing the dimer with formaldehyde solution in acid medium.  The dimer (see Group IV (b)), is also a stabilizer for polyvinyl chloride.  Specifications 739,907 and 743,740, [both in Group IV (b)], are referred to.ALSO:A process for the production of the dimer of m-isopropenylphenol comprises heating m-isopropenylphenol and/or m-hydroxyphenyldimethyl carbinol for a time sufficient to form the dimer, and recovering the dimer from the reaction mixture. When m-isopropenylphenol is used as the starting material, the reaction may be carried out at 30 DEG  to 200 DEG  C. (20 DEG  to 300 DEG  in the Provisional) and preferably below 130 DEG C. and in the presence of acidic condensation catalysts such as hydrochloric, sulphuric and phosphoric acids; acid-treated bentonite, kaolin, fuller's earth, montmorillonite, kaolinite, vermiculite, illite, attapulgite, diatomaceous earth, halloysite; mono-, di- and trichloracetic acids, organic sulphonic acids, sulphonated polymers, phosphorus halides, Friedel Crafts catalysts and acidic surface-active catalysts.  A solvent for the reaction mixture may be used.  The carbinol-phenol may be similarly treated, and the water evolved may be continuously removed by distillation.  Alternatively the carbinol phenol may be heated at a temperature above its melting-point to effect dehydration and dimerization.  As starting material there can also be used the reaction mixture resulting from the catalytic decomposition of m-2 - hydroxy - 2 - propyl a ,a  - dimethylbenzyl hydroperoxide.  The product may be recovered by distillation or extraction with a solvent.  It exists in crystalline and amorphous forms which can be separated by crystallization and forms solvates of crystallization with benzene and chloroform.  In examples the dimer is prepared by (1) refluxing n-hydroxyphenyldimethyl carbinol in toluene with an acid-activated montmorillonite and continuous removal of water; (2) treating m-isopropenylphenol similarly; (3) refluxing m-isopropenyl phenol in toluene containing sulphuric acid.  The dimer may be used in the preparation of novolak-type and epoxide resins and as a stabilizer for polyvinyl chloride (see Group IV (a)).  Specifications 739,907 and 743,740 are referred to.
Patent GB-743816-A (GB)
Title: Improvements in or relating to clamping devices
Inventor: HAMPTON CHARLES WILLIAM
IPC: F16B35/00
Filed: 1953-09-05
Abstract: 743,816. CLamps; vices. HAMPTON, Ltd., C. & J. Sept, 3, 1954 [Sept. 5, 1953], No. 24608/53. Class 61. In a clamping device in which the sliding jaw 7 is urged towards the fixed jaw 3 against the action of a spring 12 by a cam 22 carried by a lever 25 pivoted at 24 to the end of the spindle 9 which is rotatable in the sliding jaw 7, means including a plunger are provided for locking the spindle and cam lever to the sliding jaw in various angular positions of adjustment of the cam lever to the axis of the spindle. As shown, the end 27 of the spindle is screwed into a tapped hole 10 in the fixed jaw 3 to allow adjustment of the jaws. The forward end 13 of the spindle carries a rotatable sleeve 14 having radial notches 15 for selective engagement by a projection depending from a plate 17 slidable in a shallow vertical slot in the sliding jaw 7. The plate 17 is locked to the jaw with the projection in position in the selected notch, by a screw 20. A pair of cam plates 22 pivoted at 24 to the flattened head 23 of the spindle 9 fit into a slot 21 in the sleeve 14, so that the cam plates, the sleeve and the spindle may be rotated together. The sliding jaw 7 is supported on a ledge 6 on the base 1, an adjustable pin. 28 carrying a collar 31 maintaining the inner face in vertical position. A protecting rubber muff 32 surrounds the sleeve and projects beyond it. In a modification the plate 17 and projection are replaced by a pair of soring plungers which .engage a selected pair of eight conical recesses provided in the sleeve. In another modification the conical recesses are replaced bv V-notches. Specification 743,815 is referred to.
Patent GB-1550291-A (GB)
Title: Apparatus for maintaining a predetermined tentile stress in strip metal as it is flattened by flattening rolls disposed between two strip-advancing means
IPC: B21B39/00
Filed: 1977-06-13
Abstract: Two conveying devices (4, 5), arranged respectively on the entry and exit side of the levelling rollers (1), are provided, these conveying devices having rotating drivers (6) which act on both sides of the strip (3). The tensile stress is recorded by a measuring device. In order to be able to eliminate the effect of the variation in the coefficient of friction between the metal strip (3) and the drivers (6), the strip (3) is subjected between the drivers (6) of each conveying device (4, 5) to pressure, the pressure of the drivers (6) on the strip (3) being varied as a function of the tensile stress measured. <IMAGE>
Patent GB-380245-A (GB)
Title: Improvements relating to casement stays
IPC: B63B19/00
Filed: 1931-09-04
Abstract: 380,245. Stays. HOPE & SONS, Ltd., H. and MANTLE, P. A., Halford Works, Smethwick, Staffordshire. Sept. 4, 1931, No. 24859. [Class 65 (i).] A casement stay comprises a hollow stay-bar formed with a groove or slot along its underside, having at one end a pair of pivots with their axes mutually perpendicular, and an adjustable catch with which the bar can be detachably connected, the catch being capable of being tightened to secure the bar or released to allow the bar to slide relatively to the catch, and a gap being provided in the slot to allow the bar to be disconnected from the catch. In the arrangement shown, the stay-bar a is of hollow rectangular section with closed ends, having a slot b in its underside. The bar is pivoted to the window by hinges c, d forming a universal joint, and engages a catch member comprising a screw-threaded stem h mounted in a bracket i fixed on the window frame. The stem h engages the slot in the stay-bar, and has a head l which prevents disconnection of the stay from the catch except when the window is closed. The screw h carries a fingerpiece k, by which it may be rotated to clamp the flanges at the edges of the slot in the staybar between its head l and the bracket i to hold the window in any position. A spring o, arranged round an extension of the stem of the catch, holds the finger-piece in a position parallel to the window frame when the head of the stem h is released from contact with the flanges of the stay-bar, but is not strong enough to turn the stem from the holding position against the friction of the head on the flanges. The amount of opening of the window is limited by the length of the slot in the bar ; to enable it to be fully opened it must first be closed, in which position the stay can be lifted off the catch, the flanges at the edges of the slot being cut away at m to allow the head l to pass through. The stay, when thus disconnected, can be turned out of the way, as shown dotted, and rested on a projection p, which may be adapted to engage the opening m, also carried on the window.
Patent GB-470884-A (GB)
Title: Improvements relating to dissected picture puzzles
IPC: A63F9/10
Filed: 1936-09-11
Abstract: 470,884. Puzzles. BAMBER, W. Sept. 11, 1936, No. 24863. [Class 132 (iii)] Dissected picture or word puzzle comprises a rectangular flap 1, Fig. 1, having a scored connection 3 with a cardboard sheet or mount 2 and having a projecting part 6 for retaining paper or cardboard strips 4 slid on to the flap 1. The strips 4 have turned over ends which may be in hook form or which may be glued together at 5, Fig. 2, so that they can be printed on both sides with parts of two different picture puzzles which may be solved together or which may have to be solved separately. The mount 2 may be slid into a frame 7, Fig. 3. The construction of the strips 4 prevents them being moved in the direction of their length. In the construction shown in Fig. 4, the strips 4 are assembled on a cardboard box 8, which is inserted in a frame 9, Fig. 6, having supporting flaps 10 and preferably two differently shaped apertures. Figs. 7 and 9 show a construction in which overlapping strips 4a and 4b at rightangles are used, only those parts of the strips being printed which appear in the final picture but overprinting being used as shown in Fig. 9, to avoid discontinuity at the edges. In the construction shown in Fig. 10, a supporting block 12 in the form of a hexagon is used to take strips 4a, 4b, 4c of equal or unequal length embracing pairs of parallel sides 13. Only the strips 4a and 4c need be used to solve the puzzle. The supporting block 12 may be in the form of an octagon or decagon. The constructions shown in Figs. 7 and 10 may be mounted in suitable frames.
Patent GB-1357542-A (GB)
Title: Sectional members
IPC: B27M3/00
Filed: 1970-05-22
Abstract: 1357542 Forms of wood G W WYNN Ltd 20 Aug 1971 [22 May 1970 11 March 1971] 24904/70 and 6556/71 Addition to 1148528 Heading B5L An elongate member, Fig. 1, has along its length a series of spaced slits 4 which lie in a plane directed parallel to the longitudinal axis of the member, and elements on a face of the member which are substantially coplanar therewith and which are positioned in a pre. determined relationship with the positions of the slits so as to enable the slits to be located. The elements thus facilitate removal of material to one side of said plane over at least a part of the extent of one or more slits. In one embodiment, Fig. 1, the slits 4 are provided by piercing a solid member, and the elements may be provided by stamping or printing; e.g. 10, or on an adhesive tape secured to the face of the member. Alternatively the elements may be protrusions on, or depressions in, the member face.  In an alternative embodiment the member is laminated or consists of elongate components, e.g. 24, 26, 28, 30, 32 and 34, Fig. 3, joined together by adhesive layers. Slits 18 may be provided by discontinuities in an adhesive layer or by inserting strips of paper or felt between the components at the positions of the slits. In this case the locating elements may be provided by making the discontinuous adhesive layer or the inserted strips of a distinctive colour or shade. The slits may be of different lengths and/or be unevenly spaced. Two or more sets of slits in parallel or intersecting planes may be provided. The markings may be lines, with successive lines marked on adjacent faces of the member.
Patent GB-1043666-A (GB)
Title: A truck for transporting wheel-like articles
IPC: B60B29/00
Filed: 1965-06-14
Abstract: 1,043,666. Hand trucks. PAUL E. HAWKINSON CO. June 14, 1965 [Sept. 24, 1964], No. 24978/65. Heading B7B. A hand truck for transporting circular objects Y has an angled platform 19 pivoted at 18 on lugs 21 depending from the arms 11 of a U-shaped frame completed by the transverse member 13 which forms an abutment for the object Y, which is also supported laterally by side frame 33 secured to the arms 11.
Patent GB-1062435-A (GB)
Title: Improvements in and relating to polymers
IPC: C08G73/10
Filed: 1964-06-17
Abstract: Linear polyamide-acids have the formula <FORM:1062435/C3/1> where R is a tetravalent aromatic radical having the four carbonyl groups attached to different ring carbons and R1 is <FORM:1062435/C3/2> They may be converted to polyimides of the formula <FORM:1062435/C3/3> by heating a solution thereof or by treatment with a monocarboxylic acid anhydride with or without a tertiary amine. The solutions, which may contain a pigment e.g. titanium dioxide may be used as coating compositions and converted to polyimide coatings in situ on a substrate. Several suitable dianhydrides and diamines for preparing the polymers are listed. Numerous applications of the polyimides are specified.  Reference has been directed by the Comptroller to Specifications 898,651 and 928,717.ALSO:Solutions of linear polyamide-acids having the formula <FORM:1062435/B1-B2/1> where R is a tetravalent organic radical having the four carbonyl groups attached to different ring atoms and R1 is <FORM:1062435/B1-B2/2> (see Division C3), which solutions may contain a pigment e.g. 5 to 200% TiO2, are used to form coatings on various substrates e.g. metals, glass, cellulosic material, polymers or leather in the forms of sheets, wires, screens, foams or fabrics.  The polyamide-acid coatings may be converted to polyimide coatings by heating a treatment with a dehydrating agent with or without a t-amine as described in Specifications 980,273 and 980,274. Wires coated in this way may be further coated with polymeric coatings such as silicones, polyamides, polyesters, tetrafluoroethylene and its copolymers with hexafluoropropylene, polyvinyl acetals and epoxy resins.  Reference has been directed by the Comptroller to Specifications 898,651 and 928,717.