baber/WOPTO huggingface dataset:
Patent GB-735626-A (GB)
Title: Folding high chair
IPC: A47D1/02
Filed: 1953-11-30
Abstract: 735,626. Child's chair. K. & T. ENGINEERING & DEVELOPING CO. Nov. 30, 1953 [Oct. 14, 1953], No. 33235/53. Class 52 (2). A child's folding high chair comprises a back and rear leg structure, a front leg structure pivoted to the back &c. structure and a seat structure carried by the back &c. structure and the front leg structure, the seat and front leg structures being adapted to fold downwardly and flatly against the back &c. structure. As shown, the back and rear leg structure is of inverted U-form with the part 16 arranged to carry the back-rest 18 and the parts 12 forming the rear legs. The front leg structure comprises the legs 10 connected by a cross-brace and is pivoted to the back etc; structure at 14. The seat structure is of U-form, the ends of its limbs being pivoted at 22 to the back &c. structure. The forward part of the seat is linked to the front legs 10 at 40 and to the tray 33 by links 36. It is also connected by a toggle brace 30 to the rear leg brace 31. The back-rest 18, seat plate 26 and tray plate each comprise a panel, of relatively stiff resilient material such as fibre glass, having channel edges adapted to clip over the tubular framework. The tray structure of U-form is pivoted at 14 to the back &c. structure and a foot-rest 38 is carried by pivoted arms from the front legs 10 and is adjustable in height by a brace 52. The tray is also adjustable to and from the child and for this purpose each side of the tray is provided with a spring wire 44 having depressions 48 thereon into a selected pair of which the tray frame 34 may engage by manipulating the tray by means of a handle 46. A safety strap 60 is provided.
Patent GB-903037-A (GB)
Title: Sealing arrangement between two relatively movable members
IPC: F04B1/04
Filed: 1958-10-17
Abstract: 903,037. Stuffing-box substitutes. EICK. MANN, K. Oct. 17, 1958 [Oct. 19, 1957 ; Dec. 31, 1957], No. 33242/58. Class 122 (5). A sealing arrangement between relatively rotating parts 1, 3, such as in a gas or liquid pump or motor, the part 1 being a stator having a chamber 8 and the part 3 a hollow rotor, such sealing arrangement including a sealing sleeve 4 mounted within the chamber on the rotor and having a part-spherical surface at one end thereof, means 6, 7 connecting the sleeve to the rotor to prevent the sleeve from turning about the axis of the rotor while permitting it to follow any irregular movement of the rotor, a plurality of separate lubricating grooves 14 in the surface of the sleeve in contact with the rotor, and a sealing ring 5 provided at one end thereof with a part-spherical surface mating with the corresponding surface of the sleeve, the sleeve being arranged, in operation, to be pressed against the sealing ring by fluid under pressure from the hollow rotor, and the sealing ring being formed at the other end thereof, with a plain surface slidable on a co-operating surface provided on the stator within the chamber. As shown in Fig. 1, the rotor 3 is a close running fit in the bore of the sleeve 4, the part-spherical sealing surface on the latter being pressed into contact with the corresponding surface on the ring 5 by a spring 13 in addition to the fluid pressure. The sleeve is prevented from rotation by a pin 6 engaging with a clearance slot 7 in the housing. In a modification, O-rings are located in grooves formed in the part-spherical and plain surfaces of the ring 5. In the embodiment shown in Fig. 3, applied to an oil pump providing two separate supplies through outlet chambers 24, 40 having outlets 25, 41, the rotor 18 comprises two concentric tubes 32, 34, leading into the chambers 24, 40, two sealing sleeves 27, 33 on the tubes in the chamber 24, and a single sleeve 42 in the chamber 40. The part-spherical surfaces of the sleeves 27, 33 are urged against sealing rings 28, 35 by a spring 31 and the part-spherical face of the sleeve 42 is urged against a sealing ring 44 by a spring 43. Rotation of the sleeve 42 is prevented by a pin 45 and of the sleeves 27, 33, by rings 37, 37b which permit limited angular movement of the sleeves relative to the axis of the rotor. Oil is fed from the pump through the tubes 32, 34 into the chambers 34, 40.
Patent GB-1031458-A (GB)
Title: Pulse generating circuits
Inventor: WRIGHT MAURICE JAMES
IPC: H03K3/352
Filed: 1961-09-18
Abstract: 1,031,458. Semi-conductor switching circuits. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 3, 1962 [Sept. 18, 1961], No. 33330/61. Heading H3T. A switching circuit comprises a semi-conductor controlled rectifier of the type as described in Specification 1,031,451 (see Division H1), which can be switched from the conducting to the non-conducting condition by the application of a suitable reverse potential to its gate electrode, and a capacitor and a four-layer diode connected between the gate electrode and one terminal of the supply source for the anode-cathode circuit of the rectifier, the arrangement being such that, when the rectifier is switched into conduction, the capacitor charges until the four-layer diode breaks down and thereby applies a pulse to the gate electrode to switch the rectifier off. In a first circuit, Fig. 1, the application of long-triggering pulse to terminal 6 causes rectifier 7 to switch on, capacitor 9 then commencing to charge until the voltage across four-layer diode 11 becomes such as to cause breakdown of the diode and discharge of the capacitor through the gate-cathode circuit of the rectifier in such a sense as to switch it off. In Fig. 2 (not shown), switching on of rectifier 15 causes capacitor 22 to discharge into capacitor 24, the voltage across which builds up until four-layer diode 19 breaks down and switches rectifier 15 off. In Fig. 3 (not shown), when rectifier 34 is switched on capacitor 41 commences charging until four-layer diode 38 breaks down so that a negative pulse is applied to the gate of rectifier 34 to switch it off.
Patent GB-1508914-A (GB)
Title: Carbon regenerating or reviving furnace
IPC: C01B31/08
Filed: 1975-08-11
Abstract: 1508914 Shaft furnace UNITIKA Ltd 11 June 1975 [12 June 1974 23 Jan 1975] 33602/77 Divided out of 1508913 Heading F4B A furnace for carrying out the method of reactivating spent carbon described in the Parent Specification has a ring header into which burners discharge, ports being arranged to discharge hot gas to the periphery and to an inner zone of the shaft. A shaft furnace for regenerating spent activated carbon comprises a feed port 102 above an upper treatment sleeve 113 spaced from the outer furnace shell 114 and co-operating with a second internal sleeve 105, which forms the inner wall of an annular combustion chamber 107 supplied with fuel and not more than the stoichiometric amount of air by tangential burners. An annular, downwardly delivering gas distributor 110 supported by pipes 111, and outlets 109 ensure uniform distribution of the inert gases formed in the combustion chamber. The annular distributor may be replaced by a cruciform distributor (Fig. 6). An annular shaft furnace, Fig. 7, has inner and outer combustion chambers 213, 212 fed by tangential burners 218, 216 and delivering gases through outlets 215, 214.
Patent GB-1109134-A (GB)
Title: Oxoheptanals and cyclohexen-1-ones
IPC: C07C49/185
Filed: 1965-07-02
Abstract: The invention comprises 3,7,7-trialkyl-5-oxo-heptanals. They are prepared by contacting 2 - alkoxy - 4 - alkyl - 6 - (2,2 - dialkylethyl)-3,4 - dihydro - 2H - pyrans and/or 1 - alkoxy- 3,7,7 - trialkyl - 1 - hepten - 5 - ones with dilute aqueous acid.  2 - (Dialkylmethyl) - 5 - alkyl - 2 - cyclohexen - 1 - ones, e.g. menthenone, are prepared by contacting the oxoheptanals with a dilute aqueous solution of a base.
Patent GB-442758-A (GB)
Title: Improvements in or relating to connections for the stays of cycle mudguards
IPC: B62J15/02
Filed: 1934-11-24
Abstract: 442,758. Cycle mudguards. BRITTON, Ltd., C. E. & J. P., and BRITTON, C. E., Westwood Road, Witton, Birmingham. Nov. 24, 1934, No. 33789. [Class 136 (i)] The outer ends of the stays d are each connected to a mudguard a by means of a shouldered screw-stud b, which is rigidly secured to, and projects laterally from, the end of a mudguard bridge-piece a<1>, the stay d being clamped between a shoulder b<1> on the stud and a channel-sectioned washer c by means of a nut e. Before clamping, the inclination of the stay d is adjusted by rotating the washer c about the stud b. One web c<2> of the washer stands clear of the shoulder b<1>, and the other web c<3> is adapted to pivot on the shoulder when the nut e is tightened.
Patent GB-895041-A (GB)
Title: Improvements in or relating to the frequency control of circuits
Inventor: RZYMOWSKI JULIAN STANISLAW
IPC: H03B5/34
Filed: 1957-10-31
Abstract: 895,041. Valve generating circuits. COSSOR Ltd., A.C. Oct. 31, 1958 [Oct. 31, 1957], No. 33982/57. Class 40(6)  An oscillator circuit including a crystal for controlling its frequency, is characterized in that variations in the characteristic due to temperature changes are compensated by changes in resistance of a thermister connected across a diagonal of a bridge circuit so as to produce changes in capacitance effectively in parallel with the crystal. In the embodiment shown in Fig. 1, a crystal controlled oscillator,  in which the crystal X 1  is connected between grid and anode, has a compensating circuit connected between the grid and cathode. The compensating circuit comprises a bridge having four arms, two opposite arms containing resistors R 1 , and the other two opposite arms containing capacitors C 1 . The extremities of one diagonal are connected between the cathode and the crystal, and a thermister RX is connected between the other pair. With suitable component values variations in RX vary the effective capacitance in parallel with the Xtal. In Fig. 2 (not shown) the circuit is modified in that the control circuit is connected between anode and cathode of the valve VI, and in a second modification, Fig. 3 (not shown) the crystal is connected in parallel with the compensating network between grid and cathode.
Patent GB-740602-A (GB)
Title: Improvements relating to gear-hobbing machines
IPC: B23F5/22
Filed: 1953-12-09
Abstract: 740,602. Toothed gearing. SCHIESS AKT.-GES. Dec. 9, 1953 [Dec. 23, 1952], No. 34225/53. Class 80(1) [Also in Group XXII] A gear-hobbing machine comprises a cutter spindle f carrying a wormwheel e driven simultaneously by two worms a1, a2, the worms having opposing flanks of different pitch and being adjustable axially as by nuts p, to eliminate all back-lash. The worms are rotated by a motor m driving through change gearing u, bevels k, bevels i, a shaft d, a worm s and wormwheels c1; c2. The latter wheel rotates the worm a2 through an adjustable sleeve j1 so that the worms al, a2 may be adjusted relatively to one another. The wormshafts o1, o2 may carry flywheels and the wormwheels c1, c2 may be replaced by other gearing.
Patent GB-1509324-A (GB)
Title: Hinges for casement windows and to casement windows provided with such hinges
IPC: E05D15/48
Filed: 1976-08-04
Abstract: 1509324 Hinges; window operation; windows H D GALVIN 4 Aug 1976 [19 Aug 1975 4 Nov 1975] 34409/75 and 45716/75 Headings E1J E2F and E2M In a hinge for a casement window, a first leaf 14 is attached to a jamb of a window surround 15 to provide a first pivotal axis 17 and an arm 16 extends along a rail 19 of the window frame 11 to a hinged connection 18 providing a second pivotal axis, the span between the pivotal axes 17, 18 being approximately half the width of the window. The arm 16 is provided at an intermediate point with a removable locking bolt 20 which, when removed from the position illustrated in Figure 1 (closed position of the window) to the position illustrated in Figure 6, the window is reversed for cleaning the outside of the window from inside the building
Patent GB-1492850-A (GB)
Title: Upholstery buttons
IPC: B68G7/08
Filed: 1976-05-27
Abstract: 1492850 Tufting upholstery F P WHALEY 27 May 1976 [20 Aug 1975] 34570/75 Heading A4M [Also in Division A3]  An upholstery button 1, 2 has its back part 2 formed with a well 3 the bottom of which defines a seat for the head 8 of a tie 7, the button back 2 having a slot 5 through which the tie head 8 may be passed to engage with the seat with the tie 7 extending outwardly through a central aperture in the bottom of the well 3. The slot 5 has a constriction 6 past which the tie 7 is snap-fitted. As shown the head 8 comprises a washer secured by spot weld 9. The tie may be of wire or plastics. The tie may comprise a bulbous end(s) defining a head(s) formed in one piece with the tie. Alternatively, the head may comprise a metal plate bent around the tie end(s). A button cover part 1 is clipped on to the rim of the back part 2. This rim may be curled over for added strength Fig. 4 (not shown).
Patent GB-1442578-A (GB)
Title: Surface treatment
IPC: B01J3/00
Filed: 1974-08-06
Abstract: 1442578 Surface treatment of polymers SULZER BROS Ltd 6 Aug 1974 [8 Aug 1973] 34588/74 Heading C3P The surface sulphonation of aliphatic polymers is effected by first evacuating the space adjacent to the surface, then admitting sulphur trioxide vapour and finally neutralizing the sulphonated surface, e.g. with gaseous ammonia. Excess sulphur trioxide is preferably removed before the neutralization, e.g. by evacuation, being recovered for reuse by freezing out. Polymers mentioned are of ethylene, propylene, isobutylene, methyl pentene and vinyl chloride, and chlorinated polypropylene or polyethylene.
Patent GB-943134-A (GB)
Title: Improvements in or relating to a spring coiling machine
IPC: B21F3/06
Filed: 1961-09-27
Abstract: 943,134. Coiling. STORENUND MASCHINENFABRIK EMIL SCHENTER A.G. Sept. 27, 1961 [Sept. 28, 1960], No. 34710/61. Heading B3E. A spring coiling machine of the type having at least one coiling tool and a holder therefor mounted on a slide which is operatively connected with an adjusting mechanism is characterised in that means is disposed between said slide and its adjusting mechanism permitting the exchange of the coiling tool and the subsequent return of their replacements to the exact initial positions of adjustment. Wire fed against a coiling finger 12 is deflected thereby to form a coil the pitch of which may be determined by a member 14. The coiled spring is severed from the wire supply by a cutter 16. The coiling finger 12 is mounted in a tool holder 51, Fig. 2, located in a slide 11 by an abutment 52 and locked to the slide by a clamping lever 53. The slide 11 is coupled by a lever 26, pivoted thereto at 62, to a plate 23 rockable about a pivot 20 by an adjusting lever 29 set by a screw 32. If a spring of varying diameter is to be wound a cam 38 rocks a lever 35 to rock the lever 29, through a roller 59 adjustable therealong. The pitch member 14 and cutter 16 are similarly adjusted and moved. To allow the slide 11 to be retracted for removal of the coiling tool 12 without moving the plate 23, the coupling lever 26 is journalled at one end on an eccentric, mounted in the plate 23. The eccentric is rotated 180 degrees by a handle 41 from a position in which the handle bears on an abutment 65 on the plate 23 to a position where it bears on an abutment 66. This movement rocks the lever 26 about a fulcrum formed by the end of a screw 63 and retracts the slide 11. The pitch member 14 and cutter 16 are similarly retracted. Wear of the tool 12 may be compensated for by adjusting the screw 63 or by displacing the pivot 62 of the lever 26 to the slide 11 by an eccentric 67. In a modification, Fig. 3, a coiling tool 70 in a slide 76 and a coiling tool 71 on a slide 77 are simultaneously adjusted by rocking a plate 84 having a coupling lever 87, a roller 89 on the end of which bearing on an extension 81 of the slide 76. A crank arm 78 moved by the extension 81 adjusts the slide 77. The lever 87 is journalled on an eccentric mounted in the plate 84 and rocked by a handle 86 to rock the lever 87 about a fulcrum formed by the end of a screw 88 to retract the roller 89 from the extension 81 to allow the slides 76, 77 to be retracted.
Patent GB-476352-A (GB)
Title: Improvements in or relating to picking mechanism for looms
IPC: D03D49/24
Filed: 1936-12-17
Abstract: 476,352. Loom picking - mechanism. TEFAG TEXTIL-FINANZ AKT.-GES. Dec. 17, 1936, No. 34744. Convention date, Feb. 22. [Class 142 (iii)] In a spring picking-motion the picker operating member is secured to a rod-like spring member to which torsion is applied by power derived from the loom so as to store therein the energy required for the pick. As shown in Fig. 1, a rod 4 mounted in bearings 5, 6 carries at one end a picker arm 7 and at the other end a crank 8 which is oscillated by a grooved cam 11 so as to move the arm 7 into locking engagement with a latch 15 and then twist the rod 4 in a clockwise direction. On release of the latch, by means of a member moving in the direction of the arrow 19, the arm 7 springs from full to dotted line position and projects the shuttle through the shed. In a modification, the arm 7 is mounted in the centre of a rod that is fixed at one end and carries a crank 8 at the other. Fig. 4 shows a further modification wherein a rod 4, that is fixed at the end remote from the picker arm, is twisted into picking position V by the action of a crank operated latch 28 on a pin 31 on the arm 7, the latch being raised at the appropriate time by a pin 27 on the end of a crank-connecting rod 24. According to the Specification as open to inspection under Sect. 91, the picker arm may also be set by a bell-crank lever driven by a crank and released by a latch such as 15. This subject-matter does not appear in the Specification as accepted.
Patent GB-917769-A (GB)
Title: Kaleidoscope
IPC: G02B27/08
Filed: 1961-09-28
Abstract: 917,769. Kaleidoscopes. PROCHAZKA, E. Sept. 28, 1961, No. 34925/61. Class 97 (1). A kaleidoscope comprises an exterior casing 15 defining a closed chamber 16 with a viewing window 14, means, for example bellows 25, for producing an air current 26 near the bottom of the housing directed towards an end wall, reflecting means 17 converging towards said end wall with a series of vertically spaced arrestor projections 18 between them and baffle means 27 arranged to deflect coloured particles 24 on to the projections. Air channels may be provided between the projections so that the air current draws particles on to them. A lamp 22 may also be provided in the top of the casing. Preferably the reflector 17 have concave and/or convex surfaces.
Patent GB-1049039-A (GB)
Title: Water-insoluble monoazo dyestuffs
Inventor: BARON THOMAS DOUGLAS
IPC: C09B29/08
Filed: 1964-08-26
Abstract: The invention comprises water-insoluble mono-azo dyestuffs free from SO3H and COOH groups of the formula <FORM:1049039/C4-C5/1> wherein A is a benzene residue; X is -CO-, -SO2- or -COO-; Y is a substituted or unsubstituted C1-C4 alkyl, phenyl or cyclohexyl radical; Z is H or C1-C4 alkyl or alkoxy; R is a C1-C4 alkyl radical; W1 and W2 eac independently represent C1-C6 alkylene radicals; and n is an integer from 1 to 10.  They may be obtained by coupling a diazotized amine of the benzene series with a coupling component of the formula <FORM:1049039/C4-C5/2> (see Division C2 for preparation).  Preferred dyes are those wherein n is 1, 2 or 3, and A preferably represents a group of the formula <FORM:1049039/C4-C5/3> wherein U is H, Cl, Br, Cn, C1-C4 alkylsulphonyl CF3 or carbo-C1-C4 alkoxy and V is H, Cl, Br or NO2.  A further preferred class of dyes are those of the formula <FORM:1049039/C4-C5/4> wherein p represents 1 or 2 and "Hal" represents Cl or Br. Examples are given for the production of the dyestuffs.  They are useful for colouring synthetic textile materials, for example, cellulose acetate and cellulose triacetate textile materials, polyamide textiles and aromatic polyester textiles, in shades ranging from yellow to blue.  The dyes may also be used in conjunction with other dyes.ALSO:Dyestuff intermediates of the general formula <FORM:1049039/C2/1> wherein X represents -CO-, Y represents a substituted or unsubtituted C1-C4 alkyl; phenyl or cyclohexyl; Z represents H, or C1-C4 alkyl or alkoxy; R represents C1-C4 alkyl; W1 and W2 each represent C1-C6 alkylene radicals; and n represents an integer from 1 to 10; are obtained by esterifying a compound of the formula <FORM:1049039/C2/2> with an alcohol of the formula HO(W2-O)n-R1 or by esterifying a compound of the formula <FORM:1049039/C2/3> with an alcohol of the formula HO(W2-O)n-R, reducing the NO2 to NH2, and finally acylating the NH2 group to give a -NH.X.Y group.
Patent GB-1242962-A (GB)
Title: Production of improved lubricating oils
IPC: B01J29/20
Filed: 1969-07-11
Abstract: 1,242,962. Hydrofining lubricating oils. TEXACO DEVELOPMENT CORP. 11 July, 1969 [19 .Tuly, 19681, No. 34948/69. Heading CSE. Sulphur-containing lubricating oils are hydrofined at 200-700 F., 100-2000 p.s.i.g. and a L.H.S.V. of 0À1-5 in the presence of hydrogen, using a catalyst comprising a Group VIII metal supported on a decationized crystalline mordenite type zeolite, and lube oils of improved I colour and substantially the same sulphur content are recovered from the hydrogenation product. The feed oil may be naphthenic, or a paraffinie stock which has been subjected to dewaxing to less than 5% by wt. of wax, and it may be acid-treated. The hydrogenating gas" preferably contains at least 75% by vol. H 2 . Preferred Group VIII metals are Pt, Pd, Fe, Rh The zeolite may be mordenite or clinoptilolite which has been ion exchanged with NH 3  or acidified with HC1 and calcined above 500 F. in air. The tube product may be subjected to further acid or clay treatment or hydrodesulphurization.
Patent GB-835483-A (GB)
Title: Improvements in or relating to exothermic compositions
Inventor: ANDREWS ALFRED TRESHAM
IPC: C22B5/06
Filed: 1957-11-08
Abstract: An exothermic composition for use in the production of castings from molten metals comprises aluminium as the sole metallic reducing agent, a quantity of oxidizing agent generating oxygen at a relatively low temperature e.g. 500 DEG C. or below, and stoichiometrically insufficient to combine with all the aluminium present, a proportion of at least 0.75% by weight of a fluoride, and at least 5% by weight of a secondary oxygen-containing substance selected from the carbonates, sulphates, and phosphates of calcium, barium, strontium and magnesium and the double carbonate of calcium and magnesium.  The secondary oxygen-containing substance, e.g. Dolomite, is preferably employed in a particle size exceeding 150 mesh.  Specifications 627,678, 769,719, 772,273, 774,490, 774,491 and 775,380 are referred to.
Patent GB-487408-A (GB)
Title: An improved method of avoiding dangerous torsional oscillations during the starting of multi-cylinder internal combustion engines
IPC: F16F15/24
Filed: 1936-12-21
Abstract: 487,408. Starting. KRUPP GERMANIAWERFT AKT.-GES., F. Dec. 21, 1936, No. 35031. Convention date, Dec. 24, 1935. Drawings to Specification. [Class 7 (v)] In order to avoid dangerous torsional oscillations of the engine shaft during the starting of multicylinder engines, one or more of the cylinders are cut out of operation during acceleration through the range of critical speeds, the cylinders remaining in operation being so selected that not only is the absolute value of the total input of torsional oscillations into the crank-shaft reduced, but the resultant input at the most dangerous critical speed is reduced as far as possible below the resultant input occurring when all the cylinders are in operation. In the case of a nine-cylinder four-stroke compression-ignition engine firing in the order I, III, V, VII, IX, VIII, VI, IV, II, the cylinders I, III, V, IV, II are thrown out of operation when the engine is started by the use of compressed air in the remaining cylinders. The starting air may be utilized to hold open the inlet or exhaust valves of the cylinders to be cut out, and to open a relief valve in the fuel-supply conduit. Specification 10545/05, [Class 7], is referred to.