baber/WOPTO huggingface dataset:
Patent GB-1016944-A (GB)
Title: Process for the preparation of an elastomeric polydiene composition
IPC: C08F36/04
Filed: 1964-02-26
Abstract: An elastomeric polydiene composition is produced by (1) forming a hydrocarbon solution comprising a polydiene elastomer and 5 to 25% by weight based on the polydiene, of diene monomer in the presence of 100 to 2500 p.p.m. based on the monomer of a lithium alkyl catalyst. Monomers specified are butadiene and isoprene. In the examples isoprene dissolved in mixed isoamylenes is first polymerized using a low concentration of butyl lithium as catalyst, the polymerization being terminated with methanol and reinitiated three times, to produce a high molecular weight polymer and then the polymerization is completed with the same catalyst present but in a much higher concentration to produce a low molecular weight component.  The resultant composition is coagulated with steam and hot water and dried.  Block polymers may be formed by polymerizing a vinyl compound, e.g. styrene, with either the high molecular weight polymer before the final polymerization or with the final composition.
Patent GB-901148-A (GB)
Title: A process for the production of polyethylene with a branched structure
Inventor: WISSEROTH KARL
IPC: C08F8/06
Filed: 1961-03-06
Abstract: Linear polyethylene of molecular weight 5,000 to 50,000 is treated in melted form at temperatures between 160 DEG  and 280 DEG C., with molecular oxygen or mixtures of nitrogen and oxygen, such as air, whereby polyethylene of branched structure is produced.  The linear polyethylene used may be obtained by thermal degradation of a linear polyethylene of higher molecular weight, e.g. by heating linear polyethylene of molecular weight 430,000 at 350 DEG  to 420 DEG C. under nitrogen.  The products find application as film.
Patent GB-141885-A (GB)
Title: Improvements in or relating to brake actuating mechanisms of tramway vehicles
IPC: B61H13/04
Filed: 1919-04-01
Abstract: 141,885. Heap, W. April 1, 1919. Winches; driving - gear; self-sustaining gear. - The hand-actuated brakes of tramway vehicles are provided with non-reversible epicyclic gearing of known type, which serves to lock the brakes on without the use of the ordinary ratchet and pawl. The hand-actuated shaft a is formed with an eccentric b on which is loosely mounted a wheel c having external teeth gearing with internal teeth on a slightly larger wheel d Integral with the chain-winding-drum e. Rotation of the wheel c is prevented by means of a floating plate f having slots g<1>, g<2> engaging pins or lugs k<1>, k<2> on the wheel c, and other slots h<1>, h<2> engaging pins or lugs l<1>. l<2> on a fixed disk i.
Patent GB-231853-A (GB)
Title: Process of obtaining sulphuric acid
IPC: C01B17/86
Filed: 1925-03-26
Abstract: Sulphur dioxide is brought into contact with a predetermined quantity of nitrosyl sulphuric acid under such conditions that chamber crystals are produced, which dissolve in the circulating acid and facilitate the oxidation of repeated quantities of sulphur dioxide without liberation of nitrogen oxides, only the acid withdrawn from the process being denitrated.  The reaction may be conducted in chambers provided with filling bodies.  The Specification as open to inspection under Sect. 91 (3) (a) comprises the use of Kestner's atomizers, Schmiedel's rollers or Keller's sprayers for effecting the reaction between the gases and the acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-941238-A (GB)
Title: Method and apparatus for producing nets, especially fishing nets
IPC: D04B11/00
Filed: 1960-03-08
Abstract: 941,238. Net making; finishing fabrics. VEREINIGTE GLANZSTOFFFABRIKEN A. G. March 8,1960 [March 10, 1959], No. 8168/60. Headings D1C and D1S. To set the knots of a net made from threads of or containing synthetic thermoplastic material, the net, whilst maintained under tension, is continuously conveyed, first through a zone in which it is heated to setting temperature by hot gases or infra-red radiation and then through a zone in which it is cooled by a cold gas flow. Rollers, including feed rollers 6, 8 and delivery rollers 7, 9, are arranged so that the net 31 is passed freely in one substantially straight path through a heating chamber 1 and past a cold air blower 30, the roller 6 being driven at a peripheral speed less than that at which roller 7 is driven. The rollers 8, 9 are carried on arms 10, 11 pivotable about axes 12, 13 and are pressed against rollers 6, 7, by the pull of the net. As it leaves the feed rollers, the net passes over a roller 35 resiliently pivotable, as indicated by the arror 34, and then under a guide roller 36. The heating means may be controllable in accordance with net material and speed. Means, including spring means for measuring the pressure exerted by the net on the roller 8 or the roller 35, may be provided to control the speed of the rollers 6 and 7 automatically in accordance with net tension. The feed and delivery rollers are driven by electric motors 14, 22 through chain and sprocket reduction trains. Reference has been directed by the Comptroller to Specification 748, 760.
Patent GB-902568-A (GB)
Title: Improvements relating to the production of iron oxide
Inventor: LLEWELYN DAVID MYERS
IPC: C01G49/06
Filed: 1958-03-14
Abstract: Pure ferric oxide is prepared from iron powder, especially carbonyl iron powder, by oxidizing the powder in hot water by a mixture of air and carbon dioxide to form a skin of hydrated oxide, removing excess water to form a cake, and calcining this cake in an oxidizing atmosphere, for example air at a temperature not above 500 DEG C. The carbon-dioxide-air ratio is preferably from 1:40 to 1:6, and the temperature of oxidation at least 80 DEG C.  The ferric oxide may be powdered by milling with steel balls in steel containers.
Patent GB-558129-A (GB)
Title: Improvements in composite fabric
IPC: D06M17/02
Filed: 1942-06-18
Abstract: 558,129. Compound fabrics. BRITISH CELANESE Ltd. June 18, 1942, Convention date, July 31, 1941. No. 8356. [Class 140] Laminated fabric articles such as sweat bands for hats, garters, belts and suspenders comprise an interlining fabric having a curved edge and an outer fabric cut on the bias and folded to enclose the interlining, a fold line of the outer fabric being constrained to follow the curvature of the curved edge of the interlining. and the fabric layers being united by thermoplastic film-forming material contained in at least one of them. A rectangular strip, a little more than twice the width of the desired sweat band, is cut on the bias from a cellulose acetate woven fabric and is folded to form an envelope about two lines parallel to its long edges and as far apart as the width of the band. Into this envelope is inserted an interlining strip, the exact width of the band, cut with one long edge concave and the other convex from a fabric composed of or containing plasticized fibres of cellulose acetate. The straight fold lines of the envelope are constrained to follow the curved edges of the interlining. The layers are united by heat and pressure, water being present if desired. The inner fabric may be non-thermoplastic. e.g. silk, wool, cotton, or regenerated cellulose, and may be coated with thermoplastic material and/or a plasticiser for thermoplastic material contained in the outer layer. The outer bias-cut fabric may be made of non-thermoplastic yarns, and may be united to an inner layer containing thermoplastic material. The thermoplastic material for inner and/or outer layer may be a cellulose ester, mixed ester, or ether, or a thermoplastic synthetic resin. The plasticiser employed in the inner layer may be ethyl paratoluene sulphonamide, dibutyl tartrate, dimethyl phthalate, di-ethoxyethyl phthalate, di- (diethylene-glycol-mono-ethyl-ether) phthalate, alkyl phosphates e.g. tri-ethyl glycol phosphate, and mixed alkyl and aryl phosphates.
Patent GB-1026073-A (GB)
Title: Improvements in or relating to rotary lubricant pumps
IPC: F16N13/20
Filed: 1963-03-01
Abstract: 1,026,073. Rotary pumps. I. M. CLARK (AUTO RESEARCH CORPORATION). March 1, 1963, No. 8413/63. Heading F1F. A rotary lubricant pump comprises a pump body A, Fig. 2 (not shown) having a through bore 10 rotatably mounting a shaft M having a crescent-shaped recess C forming a pumping chamber co-operable with an outwardly-sliding abutment constituted by a spring-loaded plunger D to separate tapped openings E and F from each other, which, depending on direction of rotation of the shaft M serve either as an inlet or outlet. Normally the pump functions as a constant volume pump but should pump pressure exceed the loading of the spring G some lubricant is by-passed to the pump inlet and the pump functions as a constant pressure pump. The pump as shown, is mounted by mounting holes K. Alternatively it may be mounted in a reservoir, the body then being circular and formed with a reduced diameter portion sealingly passing through the reservoir. A strainer may be fitted in the pump inlet and the reservoir may include a liquid level gauge. The pump outlet may include a flow metering restriction comprising a strainer and a spring- loaded check valve.
Patent GB-302097-A (GB)
Title: Improvements in or relating to aeronautical propellers
IPC: B64C11/06
Filed: 1928-03-20
Abstract: 302,097. White, A. E., (Standard Steel Propeller Co.). March 20, 1928. Screw propellers.-An air screw having a twopart metal hub with radial sleeves and clamps adapted to hold the shanks of the propeller blade is constructed with the semi-circular sleeve members cut away at two places to provide intermediate spaces for the heads on the ends of the sleeves to engage, whilst annular channels in the heads also engage with deep ribs in the sleeves. A two-bladed propeller has its blades B fitted into a head H which is a two-part construction held by longitudinal screws and has upwardly extending sockets formed with two half horizontal members 10, 11. On the interior of the sleeve members are annular ribs 12, 13, between which is a wide annular channel 14. The inner faces of the ribs are plain and normal to the axis of the sleeve. Inside the rib 12 the body of the hub is formed into cylindrical wall portions 15. The portions of the sleeves beyond the ribs 13 are thin and terminate in outwardly flaring flanges 16. Each propeller blade is preferably of aluminium alloy or other suitable material such as laminated wood or canvas impregnated with Bakelite. The root of the blade comprises a cylindrical portion 35 adapted to be clamped between the sleeves 10, 11, and a collar 37 adapted to bear against the rib 38, a reduced portion 40 and an inferior enlargement 39 adapted to fit the cylindrical recess 15 and bear up against the collar 40. When in position it is clamped by a two-part sleeve 46, 45, pivoted at 47 and secured by the through bolt 49 opposite the pin. The central hub portion is suitably bored to take the tapering propeller shaft and has a key-way 23. The means for securing the hub to the shaft is as described in Specification 219,568. A modified clamping ring is made from a circular section bar, is open to surround the sleeve, and at its screwed ends passes through a connected flange member. A corresponding construction is also described for a three-bladed propeller. By moving the clamping rings to or from the boss, the propeller may be balanced.
Patent GB-885154-A (GB)
Title: Improvements in or relating to a resilient bearing
IPC: F16F1/387
Filed: 1960-03-10
Abstract: 885,154. Assembling rubber bushes. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI S.p.A. March 10, 1960 [March 25, 1959], No. 8504/60. Class 108(3). A resilient bearing has two rigid concentric bushings 10, 11 and an annular rubber layer 12 vulcanized or otherwise bonded to the bushings and formed with two grooves 15, 16 of different diameters extending at least to the transverse mid-plane E of the bearing. The profiles of the walls of the grooves are formed as arcs of circles having their centres in the plane E while the difference between the greatest and smallest radius is preferably not greater than 10% of the average of the radii. The bottoms of the grooves lie in the central third of the bearing and are separated by a web 17 having a radial thickness between a quarter and a third of that of the layer 12. In a second embodiment the walls of the grooves are cylindrical.
Patent GB-978425-A (GB)
Title: Linear electric positioner apparatus
IPC: G11B5/55
Filed: 1963-03-04
Abstract: 978,425. Positioning magnetic recording &c. heads. DATA PRODUCTS CORPORATION. March 4, 1963, No. 8521/63. Heading G5R. [Also in Division H1] Magnetic recording heads 45, 46 are accurately positioned adjacet a recorded disc by means of an electromagnetic linear actuator comprising top and bottom core members 13,14 spaced apart and mounted between frames 11, 12 which also mount armature guide rails 20, 22, 24, 26. The armature consists of top and bottom pole pieces 29, 31 spaced apart by permanent magnet 30 and co-operates with the wound core members. Each core member consists of alternate sections of insulated coils 16, 17 and projecting poles 18 the two cores being assembled in staggered relation so that the poles of one face the coils of the other. Each coil is connected to a terminal 37 so by selectively applying power to individual or pairs of terminals in the top and bottom arc members the armature can be moved radially across the surface of the recording disc to a defined position. The armature may be polarized by an electromagnet and the fluid for flotation of the heads supplied through conduit 44.
Patent GB-428154-A (GB)
Title: Improvements in, or relating to, smoothing irons
IPC: D06F75/38
Filed: 1934-03-19
Abstract: 428,154. Hand-irons. JABET, A. E., Trevordon, Hazelwood Road, Acocks Green, and GILBERT, N. W., 513, Warwick Road, Solihull, both in Birmingham. March 19, 1934, No. 8532. [Class 138 (ii)] The lateral edges of the sole plate a of a smoothing-iron are formed with grooves a<1> which extend the whole length of the edges, or substantially so, and merge into one another at the nose of the iron whereby buttons on articles being pressed ride into the grooves and permit of the ironing of the portions of the article beneath the buttons. The lower edge of each groove is bevelled to form a guide for the buttons.
Patent GB-767168-A (GB)
Title: Puncture sealing composition
IPC: C09K3/10
Filed: 1955-03-24
Abstract: A puncture-sealing composition comprises a mixture of a filler, a gelatinous medium, and a humectant e.g. glycerine a corrosion inhibitor, e.g. sodium benzoate, a bactericide, e.g. an aqueous eucalyptus oil emulsion, and a fungicide, e.g. copper carbonate. The filler may comprise powdered mica or other lamellar material or fine granular precipitated chalk 60 to 100 per cent by weight, finely ground asbestos or other fibrous material 0 to 40 per cent, and human hair or other coarse-fibred material 0 to 5 per cent. The gelatinous medium may contain, singly or in combination, bentonite or other hydrophilic colloidal clay or metal hydroxide, a water-dispersible gum, and stearic or other longchain carboxylic acid partial ester of a polyhydric alcohol, and water, e.g. it may comprise (in parts by weight) (a) bentonite 7,5 Karaya gum 2,0 water 90,5, (b) bentonite 12 water 88, (c) Karaya gum 5,0 water 95,0, (d) glyceryl monostearate 7,5 water 92,5, (e) aluminium hydroxide 9,0 water 91,0.  The composition may also contain a wetting agent, e.g. an alkyl sulphate, alkyl aryl sulphonate, a quaternary ammonium compound, polyglycerol or polyglycol.
Patent GB-179383-A (GB)
Title: Improvements in vehicle tyres
IPC: B60C7/20
Filed: 1921-03-19
Abstract: 179,383. Jervis, F. March 19, 1921. Spring wheels comprise an annular base 1, spring-steel walls 2, 5 attached by screens 12, a floating annular member 14, and a detachable rubber tread 9. The member 14 is expanded against the inner periphery 10 of the tread by means of compression springs 15, which are spaced by tubes 11. In an alternative construction the walls are formed of four members 23 - - 26, Fig. 5, rigidly secured together by rivets 27 and bolts 28, distance-blocks 29 being provided. In another modified construction, the rubber tread 9, Fig. 6, is attached to a spring steel foundation 22, which is clamped between the bent ends of the tyre sides 23, 26.
Patent GB-748749-A (GB)
Title: Improvements in and relating to method and apparatus for making building units, for example panels or slabs of gypsum plaster or other mouldable material
IPC: B29D24/00
Filed: 1952-02-04
Abstract: 748,749. Building panels. FLOWER, S. H., PARSONS, J., LOUDON, N. G. W., and BELLROCK GYPSUM INDUSTRIES, Ltd. Feb. 4, 1953 [Feb. 4, 1952], No. 8620/55. Divided out of 748,693. Class 87(1). [Also in Group V] A building panel or slab comprises a facing a of gypsum plaster or other mouldable building material integral with cell-forming walls b. The details of the panel are described in Specification 748,693, the panel described in the latter specification having a second facing, similar to a, bonded to the open ends of the cells formed by the walls b.
Patent GB-477316-A (GB)
Title: Improvements in and relating to the operation of gas or steam turbines with varying load
IPC: F01K7/18
Filed: 1936-03-23
Abstract: 477,316. Steam turbines. HAHNLE, H. March 23, 1936, No. 8698. Void. Convention date, March 21, 1935. [Class 110 (iii)] In a steam-turbine plant a small turbine b is inserted in front of the main turbine a at low loads. The control is automatic. Modifications are described.
Patent GB-567215-A (GB)
Title: Improvements relating to vehicle jacks
IPC: B60S9/22
Filed: 1943-05-31
Abstract: 567,215. Vehicle stands. ARMSTRONG SIDDELEY MOTORS, Ltd., and THORNETT, S. May 31, 1943, No. 8706. [Class 79 (iii)] A screw jack 13 is pivoted at 15 to the chassis frame 16 of a car, so that the jack normally hangs horizontally as shown in Fig. 1 and is movable to a vertical position for use as shown in Fig. 2, a part 14 of the jack being then engaged with an abutment 24 on the frame so as to take the load. In the construction shown, in which two jacks only are used, one at the middle of each side of the car, an arm 14 integral with the jack casing 13 is pivoted on a pin 15 on the chassis frame by means of an oil-less bush 17 and a split rubber bush 18, the latter allowing the jack some play about its pivot and preventing rattling when not in use. The upper end of the jack casing has a clip 20 connected by a link 21 to a floor panel 22 which forms the means by which the jack is moved to either of its positions. When the panel is lifted, by means of a finger ring, from the position shown in Fig. 1, the jack is rasied to the position shown in Fig. 2 in which it projects through the panel opening with its upper end 12 free to be rotated by a brace or handle. In this position the arm 14 engages under a lug 24 on the chassis frame, and the load is transmitted through this lug and the pivot 15.
Patent GB-997780-A (GB)
Title: Materials handling apparatus
IPC: B66C1/66
Filed: 1964-03-02
Abstract: 997,780. Lifting load containers. TRUEHAUF CORPORATION. March 2, 1964 [May 9, 1963], No. 8719/64. Heading B8H. A plurality of load containers 10 is fitted each with arrow-shaped rails 80 which co-operate with pairs of grippers of a lifting device 8 so that the containers may be lifted as a unit. The device 8 is carried at 42 by a crane and has a frame 12 which carries two pairs of bar-like grippers 50, 52 and 54, 56 pivoted respectively at 68 and 60. Operation.-The device 8 is lowered on to the containers 10 so that each pair of grippers engages the sloping surfaces of its respective rail 80, diverges, and then due to gravity comes together and engages under the rail so that when the device 8 is raised each pair of grippers grips its rail and raises all the containers together. The grippers are disengaged from the rails 80 by actuation of air cylinders 94, 96, 98, 100.
Patent GB-169730-A (GB)
Title: Improvements in or relating to the epilation of skins
IPC: C14C1/06
Filed: 1920-03-25
Abstract: 169,730. Ross, H. C., and Walker & Sons, Ltd., W. March 25, 1920. Medicaments for external application.-A process for depilating hides and skins in which extrinsic bacteriological or saprophytic enzymes are inactivated whilst the action of thrombase (thrombin) which is stated to be found in the skins, especially at the roots of the hairs, is encouraged or activated, is stated to be useful in the treatment of diseases, but no claim is made in respect of this application of the invention. The extrinsic enzyme system, to which the term " saproprotease " is applied, is inactivated by the use of end products of proteoclastic enzyme action such as ammonia or compounds producing ammonia, amino acids, skatol, and indol. The intrinsic enzyme, thrombase, is activated by the addition of easily dissociated calcium salts or compounds such as the lactate or polysulphides thereof. The activator and inactivator are mixed together in the form of a solution, the inactivator preferably comprising a one per cent solution of ammonium hydrate. The action of the intrinsic enzyme may be assisted by the addition of trypsin or other proteolytic enzymes which will work in an alkaline medium. The Provisional Specification describes also the use, to assist the depilatorv action, of pepsase and in certain circumstances of the saprophytic extrinsic enzyme which is therein termed " saprophase."
Patent GB-318828-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M7/12
Filed: 1928-06-19
Abstract: 318,828. Dicker, S. G. S., (Stromberg Motor Devices Co.). June 19, 1928. Divided on 320,848. Spray carburettors. - An auxiliary nozzle, other than the slow-running nozzle, is supplied with fuel under the control of a valve actuated from the throttle valve, the said fuel valve also controlling air to be mixed with the fuel before it issues from the nozzle. The main nozzle 15, Fig. 3, is surrounded by a choke tube 14, and the mixture passage is controlled by a throttle valve 17, Fig. 1, with which the usual slowrunning jet is associated. The throttle valve spindle carries a cam 19 actuating a lever one arm of which engages a collar 22 on the stem of a valve 23 which controls a fuel aperture in a bush 24. Within the valve casing is screwed a cylinder 27 in which slide two pistons 28, 29. The lower piston 28 has apertures 30 and above these a disc 31. Fuel from the float chamber which passes this disc flows through ports 33 and passages 34, 41 to the auxiliary nozzle 43. A plug 35 above the ports 33 divides the cylinder into two chambers the upper of which encloses the piston 29 mounted on the valve stem and loaded by a spring 39. This piston controls the flow of air, which has entered at 40, through ports 36, passages 38, 42 and apertures 44 to the fuel passage of the auxiliary nozzle. The cam 19 has two projections which actuate the fuel valve when the throttle is closed or slightly open, and when it approaches the fully open position. While the throttle is in or near its closed position, fuel collects in the cylinder 27, and if the throttle be then opened quickly to accelerate, the fuel between the disc 31 and plug 35 will be forced through the nozzle 43.
Patent GB-828356-A (GB)
Title: Plate shears
IPC: B23D29/02
Filed: 1957-03-19
Abstract: 828,356. Hand shears. ANSTALT FUR DIE ENTWICKLUNG VON SAALENBUSCH, and WEISENBURGER, A. March 19, 1957 [March 24, 1956], No. 8906/57. Class 30 [Also in Group XXIII] Hand shears for cutting material in plate form comprises a pair of two-armed levers 11, 12 mutually pivoted at 13 and providing shearing blades 11a, 12a and operating levers 11b, 12b, the operating levers being hingedly connected at 14, 15 to handles 16, 17 which are mutually pivoted at 18 and the shearing blades being disposed to one side of the line passing through the pivots 13, 18. Shearing edges 112, 122 are oblique to the respective operating levers so that a plate being sheared passes to one side of the handles without interference. Wire cutting jaws 115, 125 are provided normal to the shearing edges and a spreader spring 19 encircles the pivot 18.