baber/WOPTO huggingface dataset:
Patent GB-679229-A (GB)
Title: Safety device for automatic pilot system
Inventor: MEREDITH FREDERICK WILLIAM
IPC: G05D1/00
Filed: 1950-06-21
Abstract: 679,229. Automatic steering control systems. SMITH & SONS (ENGLAND), Ltd., S. June 8, 1951 [June 21, 1950], No. 15529/50. Class 38 (iv). A safety device for an automatic pilot system of the rate/rate type, as disclosed in Specification 611,037, comprises a first switch operated by the gyroscope and a second switch operated by the control surface, incorrect actuation of the control surface switching off the system. A member 22 actuated by the rate of turn gyroscope 1 moves contact 23 or 24 away from a fixed contact 25 at either limit of its movement, and a corresponding member 18 actuated by the elevator 17 moves contacts 19, 20 relative to contact 21. Contacts 19, 23, and 23, 24, are interconnected so that when the rate of pitch is such as to open contact 23, appropriate actuation of the elevator results in opening of contact 19, connection being main. tained over contacts 20, 24, but incorrect actuation of the elevator breaks the connection. Similar contact arrangements 26 ... 31 and 32 ... 37 are provided for the other control channels, all three circuits being in series with a slugged relay 38 which controls contacts 43, these controlling the main supply relay 44.
Patent GB-1059383-A (GB)
Title: Improvements in rotary-piston internal-combustion engine lubricaton arrangements
IPC: F01M1/04
Filed: 1964-04-15
Abstract: 1,059,383. Valves. REGIE NATIONALE DES USINES RENAULT. April 15, 1964 [April 19, 1963; Feb. 26, 1964], No. 15696/64. Heading F2V. [Also in Division F1  In a rotary-piston I.C. engine the rate of flow of a lubricant, e.g. oil, through a radiallyorientated passage or conduit within a rotatable power-output shaft is regulated by a centrifugally-operated valve comprising a needle valve-member 32 which is controlled by a compression spring 33 and, at low angular velocities, abuts a shoulder 37 on a seat 31 to effect a minimum annular gap 36 between itself and the seat. Alternatively, the valve comprises a ball (32), Fig. 6 (not shown), which is controlled by a spring (33) having a conic configuration so that it has a non-uniform stiffness, a seat (31) being provided with a narrow by-pass passage (35).
Patent GB-120248-A (GB)
Title: Improvements in and relating to Stoves, Lamps and other Heating and Illuminating Devices.
Inventor: RISSIK ALBERT WILLEM MEINTJES
IPC: F21V37/00
Filed: 1917-10-29
Abstract: 120,248. Rissik, A. W. M., and Lorimer, H. G. S. Oct. 29, 1917. Lamps for burning solid hydrocarbons.-A lamp, stove, &c. consuming solid fuel comprises a receptacle a for the wax, tallow, &c. b and a removable concave cover d which retains one or more wickholders c in position and is provided with one or more openings h through which the wicks extend, the cover serving to melt fresh supplies of fuel placed upon it and to conduct the fuel to the receptacle a. Each wick-holder may contain more than one wick. In the form shown, the wickholder is formed from a sheet-metal blank which may be perforated to facilitate the flow of fuel to the wick, and it is provided with feet c and with heat-conducting fins upon which the concave cover bears. In a modification, a longer wick is accommodated by connecting the tubular part of the wick holder to the feet e by outwardly curved arms. The wick is adjusted by a pin v and is then retained in position by passing the pin through an eye u and a hole in the wick-holder. The lamp is charged through the opening h. In another arrangement, the reservoir has an upwardly extending central draught tube on which fits a wick-holder comprising an inner tube connected by an arm to an outer bell-shaped tube and, when the lamp is used for lighting purposes, surmounted by a deflector. The lamp cover may be provided with a chimney gallery, or with supports for a utensil, or with both, and the receptacle a is preferably provided with an outer non- conducting casing.
Patent GB-1450066-A (GB)
Title: Casting
IPC: B22D27/15
Filed: 1973-12-12
Abstract: 1450066 Casting DSO METALURGIA I RUDODOBIV 12 Dec 1973 15753/75 Divided out of 1450065 Heading B3F Casting apparatus comprises a tiltable crucible and a mould contained in a chamber, a vacuum pump for evacuating the chamber and a compressor for establishing a super-atmospheric pressure therein. The apparatus is as described in Specification 1,450,065.
Patent GB-128814-A (GB)
Title: Improvements in Apparatus for Delivering Liquids in Measured Quantities.
Inventor: SMITH ALFRED ERNEST
IPC: G01F11/28
Filed: 1918-09-28
Abstract: 128,814. Smith, A. E. Sept. 28, 1918. Fixed-chamber apparatus; for liquids or semi-liquids.-Comprises a cylindrical or other chamber A, Figs. 1, 2 and 6, vented at e<3>, Fig. 1, and provided with oppositely placed inlets and outlets b, b<1>, each opening being closed by a separate plate C, C<1> mounted on arms d, d<1> attached to a central rotary or longitudinally moving shaft E, the valve plates being of such size and so arranged that when one port is closed the other is open. The valve plates are pressed in contact with the inner surface of the measuring chamber by means of springs c, c<1> in the arms d, d<1>. In the form shown in Figs. 1 and 2, the plates are attached to a rotary shaft E, a balancing plate C<2> being similarly mounted on an arm d<2>. When used with the water-softening plant described in Specification 128,370, [Class 46, Filtering &c.], the shaft E is provided with arms e<1> which are intermittently acted on by stops in a reciprocating shaft. Fig. 6 shows a form in which flat plates C are mounted on a longitudinally reciprocating rod E. The volume of the chamber may be varied by moving the plug A<1>, which as shown in Fig. 4 is effected by screwing it further out of the chamber, but may be effected automatically in water-softening plant by the flow of water acting on a flap H<1>, Fig. 4, or on a plug suitably connected.
Patent GB-553684-A (GB)
Title: Improvements in or relating to hank poles or the like for use in dyeing and analogous apparatus
IPC: D06B23/00
Filed: 1941-12-08
Abstract: 553,684. Dyeing-apparatus. MELLOR, BROMLEY & CO., Ltd., and FREEMAN, S. R. T. Dec. 8, 1941, No. 15822. [Class 15 (i)] Hank poles &c. for supporting textile materials such as yarns in hank form and fabrics to be subjected to treatment by fluids circulated through them particularly where the poles are mounted in a frame and lowered into a dye liquor circulated as by a screw propellor through yarns &c. hung on the poles are constructed of flat plates 3 arranged edgewise to the flow of the dye &c. and which may be flanged over at the top and bottom edges 3a, the plates being secured together by tubular cross pieces or by means of a zig-zag strip 4 the flat bends 4a of which contact with the plates.
Patent GB-741004-A (GB)
Title: Improvements in the production of organic acid esters of cellulose
Inventor: FISHER JAMES WOTHERSPOON
IPC: C08B3/22
Filed: 1952-06-09
Abstract: Cellulose is esterified with an organic acid anhydride in the presence of sulphuric acid as catalyst and sufficient of a solvent mixture of a lower aliphatic acid containing 2-4 carbon atoms in the molecule and methylene or ethylene chloride, of which 25-80 per cent by weight consists of the lower aliphatic acid, to dissolve the cellulose triester formed.  To the primary esterification solution so obtained there is added sufficient water to hydrolyse residual acid anhydride and to provide at least 50 per cent of water (on the weight of the cellulose) for ripening, and all the sulphuric acid in the solution is neutralized.  The solution is then heated to 100-190 DEG C. and maintained between these limits of temperature until the cellulose ester has the desired acyl value.  The cellulose used may be a mixture of purified cotton linters and pulp from wood, straw, or grasses.  The cellulose may be activated by treatment with an aliphatic acid, e.g. acetic acid.  The amount of sulphuric acid used as catalyst may be less than 5 per cent, e.g. 0.8-2.5 per cent, of the weight of the cellulose and, if desired, part or all of this may be contained in the acetic acid used in the pretreatment.  The sulphuric acid may be neutralized, after completion of the esterification, by means of carbonates, acetates, oxides, and hydroxides of magnesium, zinc, aluminium, and alkaline earth metals. Neutralization may be effected before, during, or after the addition of the water.  Before the actual ripening, part of the methylene or ethylene chloride may be removed by distillation.  The ripened solution may be thinned by adding acetic acid or acetone before the cellulose acetate is precipitated.  In an example, cotton linters are pretreated with acetic acid and then acetylated with 725 parts per cent by weight of a mixture of 300 volumes of acetic anhydride, 140 volumes of methylene chloride, and 200 volumes of acetic acid containing 2 per cent of sulphuric acid (on the weight of the cellulose), the temperature being allowed to rise to 54 DEG  C.  When a clear solution has formed, 120 parts by weight of water (as 50 per cent acetic acid) are added with magnesium acetate to neutralize the sulphuric acid.  The solution is heated in a pressure vessel to 120 DEG  C. and maintained at this temperature for 5 hours.  The ripened cellulose acetate is precipitated by the addition of water.  The parent Specification and Specification 737,566 are referred to.
Patent GB-1501699-A (GB)
Title: Phenylaralkyl ethers thioethers and amines and their use as pesticides
IPC: C07C315/04
Filed: 1975-04-17
Abstract: 1501699 Phenyl-aralkyl esters, thioethers and amines CIBA-GEIGY AG 17 April 1975 [18 April 1974 7 March 1975] 15904/75 Heading C2C The invention comprises compounds of the general Formula I wherein Y represents -S-, -CH 2 S- or Z represents -S-, -O- or -NH-, R 1  represents hydrogen, C 1  to C 4  alkyl, C 1  to C 2  alkoxy, C 3  to C 4  alkenyloxy, alkynyloxy and haloalkenyloxy, halogen, CN or NO 2 , R 2  represents hydrogen, C 1  to C 4  alkyl, C 1  to C 2  alkoxy or halogen or R 1  and R 2  together represent the 3,4-methylenedioxy group, and R 3  represents hydrogen or methyl, and R 4  represents hydrogen, methyl or halogen. The compounds of Formula I are used as pesticides and compositions for such use are described and claimed. The compounds of Formula I wherein Z represents -O- or -S- may be prepared by reacting a compound of formula where Z represents -O- or -S-, R 4  and Y are as defined above and Me represents a metal of the 1st or 2nd Main group of the Periodic Table in the presence of a base, with a compound of the formula wherein R 1  to R 3  are as defined above and X represents a halogen atom. The compounds of Formula I wherein Z represents -NH- may be prepared by catalytically hydrogenating a compound of formula wherein R 1  to R 4  and Y are as defined above.
Patent GB-686297-A (GB)
Title: Screw thread inserts for moulded or cast material
Inventor: FORSTER JOHN O
IPC: F16B37/12
Filed: 1951-07-05
Abstract: 686,297. Bolt-hole bushes. HELI-COIL CORPORATION. July 5,1951, No. 15970/51. Class 89(i) A helical wire insert to form a screw head in a hole in a material of low tensile strength is shaped so that the exterior also forms a thread with one face 8 at an angle between fifteen and thirty degrees to the axis and the other substantially normal thereto. The coil is wound with the leading end 17 slightly smaller than the hole into which it is to be inserted, axial pressure then causing the larger diameter turns to contract. When the coil is in place it is expanded to embed the edge 9 into the wall 20 of the hole either by a tool or by the bolt. The edge 9 may be interrupted, to form teeth in one or more turns, by forming notches 20 with symmetrical flanks. Notches of other forms are illustrated, and the notches may be replaced by a pair of opposed plates. The wire may be of the section shown on Fig. 9 the double incline 34, 35 permitting assembly, in a through hole, from either side.
Patent GB-1272738-A (GB)
Title: Process for producing acrylic extrudates
IPC: C08L33/08
Filed: 1970-04-03
Abstract: 1,272,738. Extruding acrylic polymer mixtures. SUMITOMO CHEMICAL CO. Ltd. 3 April, 1970 [3 April, 1969], No. 15997/70. Heading B5A. [Also in Division C3] Shaped acrylic products having a coarse granular surface finish are produced by extruding a mixture of (a) an acrylic moulding material having a reduced viscosity of from 0.1 to 3 dl./g. as a 1% by weight chloroform solution at 25‹ C. and (b) a particulate non-cross-linked acrylic resin having a higher molecular weight than material (a) and a reduced viscosity of from 2 to 15 dl./g. as a 0.1% by weight chloroform solution at 25‹ C., under conditions such that the material (a) melts while the particulate resin (b) is only superficially softened. Each of components (a) and (b) may be a homopolymer of methyl methacrylate or a copolymer of methyl methacrylate with a C 1 -C 8  alkyl acrylate or methacrylate or with another vinyl monomer, e.g. styrene, acrylonitrile or N-allylmalimide. The extruded mixture may additionally contain other components, e.g. ethylene-vinyl acetate copolymer grafted with vinyl chloride, pigments and dyestuffs. The mixture may be extruded in the form of sheets, pipes, rods or blown bottles. In the examples the extrusion temperature is about 200‹ C. and extrusion is effected in a conventional extruder with open roll gaps at the upper and lower stage, or with the opening of the roll gaps smaller than that of the die lip.
Patent GB-594738-A (GB)
Title: Quick-reset time-delay electronic control system
IPC: H03F1/54
Filed: 1945-06-22
Abstract: 594,738. Time delay control circuits. HAZELTINE CORPORATION. June 22, 1945, No. 16043. Convention date, Aug. 29, 1944. [Class 40 (v)] In a system including a valve which exercises a control effect in its normally operative state, delaying means react on the control grid through a time-constant circuit which is common to further delaying means responsive to the flow of space current through the valve. The Figure shows valve 29 controlling the screen grid potential of valve 13 to delay the application of pulses from source 10 to the grid of gas-filled valve 15 for a predetermined time after energizing the power supply. On closing switch 21, current flows through resistors 27a, 34, 35, 36 and impresses a negative voltage on grid 31 through capacitor 37 which is associated with resistor 38 in a time constant circuit to keep valve 29 below cut-off for a short period. When anode current begins to flow through resistor 32, the cathode voltage rises with grid voltage and the same time constant circuit reduces the rate of change in grid-cathode voltage to delay attainment of full conduction in valve 29 for a further period. When maximum current flows through resistor 32, valve 13 conducts to pass energizing pulses through valve 14 to the grid-controlled valve 15.
Patent GB-261443-A (GB)
Title: Improvements in steam generators
IPC: F22B13/06
Filed: 1925-06-22
Abstract: 261,443. Franco, A. June 22, 1925. Railway locomotives, steam.-A locomotive boiler has two barrels 4, 5, Fig. 1, with smoke tubes 6, 7 opening into opposite sides of a central firebox 1, the sides of which are extended beyond the barrels to allow the boiler to be fired longitudinally through doors 10 in the walls 8, 9, of the extensions. The barrels may have flattened sides, and their axes may not be in line. The boiler may be so mounted that the axes of the barrels are at an angle to the axis of the locomotive. The firebox may be divided by a water wall 36, Fig. 14, arranged at an angle or parallel to the axes of the barrels. The wall may consist of a bank of .vertical water tubes. Coal bunkers are provided on the platform of the locomotive at the sides of the barrels.
Patent GB-420677-A (GB)
Title: Improvements in or relating to bricks
IPC: E04B2/02
Filed: 1933-06-02
Abstract: 420,677. Bricks. BLOCKLEYS, Ltd., and BLOCKLEY, A. R., Hadley, near Welling- ton, Shropshire. June 2, 1933, No. 16102. [Class 87 (i)] Clay bricks in which the visible face is formed by cleavage or fracture to resemble natural stone or rock, are produced by forming a block or slab of clay having the dimensions of two or more bricks, cutting or slitting the block with one or more grooves, for example, g, h, in the required plane of division, baking the block, and then breaking the block in the planes of the grooves. Reference has been directed by the Comptroller to Specification 134,448, [Class 87 (i)].
Patent GB-1012525-A (GB)
Title: Polymeric products
IPC: C08J5/22
Filed: 1963-04-24
Abstract: A film or filament made from a polymeric material comprising units of an ethylenic aromatic compound and units of at least one vinyl ester, vinyl alcohol, hydroxyalkyl vinyl ether or sulphide, or hydroxyalkyl ether in which the alkyl group is interrupted by one or more ether oxygen atoms, is cross-linked by treatment with hydrogen fluoride or mixture thereof with boron trifluoride as an alkylation catalyst, whereby the aromatic nuclei in the polymer are alkylated with the oxygen-containing monomer units.  The resulting crosslinked products may be used in textile applications and, after appropriate chemical treatment, as ion-exchange materials.  The polymers from which the films and filaments are made may be copolymers, graft polymers or blends of polymers.  The examples describe the cross-linking of filaments made from a polyvinyl acetate-styrene graft polymer and a partial hydrolysis product thereof, a polyvinyl acetate-vinyl toluene graft polymer, a polyvinyl stearate-styrene graft polymer, graft polymers of styrene on polyvinyl hydroxyethyl ether and sulphide and polyvinyl 2-hydroxypropyl ether, and blends of polyvinyl acetate and polystyrene.  Cross-linked filaments made from polyvinyl acetate-styrene graft polymers are given ion-exchange properties either by sulphonation or by chloromethylation, followed by animation.  Also described is the preparation of the above polymers and also copolymers of tertbutyl acrylate and hydroxyethyl vinyl ether and sulphide, and copolymers of vinyl stearate and ethyl acrylate and acrylamide, by aqueous emulsion polymerization in the product of a catalyst mixture consisting of ammonium persulphate, sodium hydrosulphite, tert.-butyl hydroperoxide and ferric sulphate. The preparation of polyvinyl acetate-polystyrene blends is described, either by mixing aqueous dispersions or benzene solutions of the two polymers.
Patent GB-163399-A (GB)
Abstract: 163,399. Miller, C. A., and Miller, F. J. Jan. 19, 1920. Lantern door fittings.-The detachable lantern front of a motor or other lamp is provided with rearwardly extending tongue-pieces which engage, when the front is in position, with concealed devices, which grip the tongue-pieces, when operated by external locking-screws. In one form, each tongue-piece c engages the shank of the corresponding locking-screw e and is gripped between a fixed bearing g and the head of a nut f slidably mounted by means of a pin and groove in a bridge-piece d'. A spring h bearing on the inner face of the bridge-piece d<1> forces the nut f into the inoperative position when the latter is released.
Patent GB-673573-A (GB)
Title: Improvement in wall construction
IPC: E04B2/28
Filed: 1950-06-30
Abstract: 673,573. Building - blocks; walls. BETINAS, M. June 30, 1950 [July 4, 1949], No. 16379/50. Classes 20(iv) and 87 (i). A building-block 1 of H-form is provided with grooves 5 in the cross-piece 4 to cooperate with the rounded ends of one side portion 3 of adjacent blocks. The other side portion 2 which forms the face of the wall has straight ends. In one construction of wall, inner and outer blocks 1a, 1c are connected by blocks 6 both side portions of which have rounded ends. In. another construction, the blocks 1a, 1c are directly engaged with one another. To form a continuous wall surface, the side portion 2 of a block 1 is' longer than the portion 3 and symmetrically arranged, but where an opening is required in the wall, the portions are made equal.
Patent GB-333954-A (GB)
Title: Improvements relating to cycle dynamos
IPC: B62J6/06
Filed: 1929-05-28
Abstract: 333,954. Lucas, Ltd., J., and Turner, W. C. May 28, 1929. Driving-arrangements.-A dynamo g for cycles is secured by a metal strap h to a hollow boss f attached to the end of a pivot spindle e which is longitudinally and axially movable in a cylindrical bearing d at the end of an arm a fixed to the cycle frame c by a clip b. A clock spring i within the boss f controls the movement of the spindle e, and when the dynamo is in the out-ofservice position, draws a pin l on the spindle into engagement with a notch m in the bearing d. On disengaging the pin the spring turns the dynamo into engagement with the cycle wheel p.
Patent GB-217062-A (GB)
Title: Improvements relating to connections for grease guns and other tubular bodies
IPC: F16N21/04
Filed: 1923-06-25
Abstract: 217,062. Williams, H. June 25, 1923. C u p - leather, overlap joints; couplings, disconnectible; swivelling joints. - Relates to improved means for connecting the delivery end of a grease gun to a receiving nipple, and for like purposes involving a detachable fluid-tight connection between a pair of tubular members. The cylindrical nipple a is formed with a lateral aperture b provided with a ball-valve d, while a cylindrical socket member e, attached to the delivery pipe of the grease gun, adapted to be detachably connected therewith, is provided with a pair of cup-leather packings g arranged to form a tight joint with the nipple on opposite sides of the aperture b. In a modification, the socket member e is arranged in line with the delivery pipe of the grease gun, to avoid the necessity for producing a separate swivelling connection between the coupling and the pipe. A tap or cock may be arranged with the coupling or adjacent thereto for controlling the flow of grease.
Patent GB-124155-A (GB)
Title: Improved Drawing Table.
IPC: A47B27/18
Filed: 1918-10-10
Abstract: 124,155. Naamlooze Vennootschap Wed. J. Ahrend & Zoon's Industrieen Handelsvereeniging. July 26, 1918, [Convention date]. Addition to 114,119. Drawing-desks. - In a drawing table or desk having the top carried by parallelogram links as described in the parent Specification, the counterweighted link 7 is held in adjustment by a friction device acting on a sector 9 fixed to this link con. centric with its pivot 2. The sector 9 is frictionally held between two shoes 16, 17 by the action of a spring 15 situated between the friction shoe 16 and a screw-cap 14 adjustable on a fixed sleeve 10. A clamping-screw 18 is provided to hold the parts more rigidly in adjusted position when desired.
Patent GB-1038683-A (GB)
Title: Power means for rotary drill apparatus
IPC: E21B15/04
Filed: 1964-04-22
Abstract: 1,038,683. Change-speed gear; chain tensioners. RUSTON-BUCYRUS Ltd. April 22, 1964 [April 29, 1963], No. 16643/64. Headings F2D and F2Q. [Also in Division E1] In self-propelled earth-boring rig the sprockets 40 for driving chains 41 for raising and lowering the drill string (not shown), a winch 46, and sprockets 39, 39a for driving endless tracks (not shown) are driven by gearing 33 in a housing 34. An electric motor 36 drives gears 65, 63 and a shaft 32, the sprockets 40 being rotated when clutch parts 60, 60a are engaged and the winch being rotated when clutch parts 60, 47 are engaged. The electric motor also drives the sprockets 39, 39a through gearing 64a, 38, a shaft 37 and clutches 57, 58. An hydraulic motor 35 drives the sprockets 40 at high and low speeds for drilling depending upon whether the gear 80 engages the gears 82 or 83, clutch parts 87, 86b being engaged. The torque on, and the weight of, the gear train and housing are respectively resisted by compression springs 102, 100. The tautness of the chains 41 is maintained by equalizers 90 mounted on the mast and each comprising pulleys 42, 43 mounted in slots in a channel 92 and biased to tension the chain by compression springs 94, 93. The channels are mounted on the mast by links 98, and pivoted plates 95 connected by a link 96 which ensures that each of the chains carries an equal load.