baber/WOPTO huggingface dataset:
Patent GB-646964-A (GB)
Title: Manufacture of an organic dinitrile
Filed: 1948-02-11
Abstract: In a process for the manufacture of 1 : 4-dicyano-2-butene a 1 : 4-dihalo-2-butene, wherein the halogen atoms are of atomic weight between 35 and 80, is reacted with hydrogen cyanide under non-alkaline conditions.  Hydrogen halide produced in the reaction may be neutralized by reactants which do not produce alkalinity such as carbonates of magnesium, calcium, zinc and barium or, in the substantial absence of water, of an alkali cyanide.  In the absence of an absorbing agent for hydrogen halides lower yields are obtained. An excess of hydrogen cyanide may be employed as a diluent or neutral liquids such as dioxane, benzene toluene, diethyl ether, aceto-nitrile and propionitrile, methanol, ethanol or 2-methoxy-ethanol.  Cuprous halides and copper catalyze the reaction and the former also stabilizes hydrocyanic acid in the presence of stainless steel.  In the presence of sufficient diluent other than hydrogen cyanide the reaction may be conducted at atmospheric pressure, otherwise it is desirable to use closed vessels.  1 : 4-dicyano-2-butene is obtained when in examples (1), (2) and (3) 1 : 4-dichloro-2-butene is heated with hydrogen cyanide in the presence of calcium carbonate and cuprous bromide, dioxane being present in the last example; (4) cuprous chloride and acetonitrile as diluent are used in a similar process to (2); (5), (6) and (7) cuprous chloride, bromide and iodide, respectively, are used in processes similar to (2); (8) a lower temperature is used in a similar process to (7); (9) and (10) metallic copper is used instead of a halide and water is added, the latter example being repeated with magnesium and barium carbonates instead of calcium carbonate and cuprous chloride instead of metallic copper; (11) 1 : 4-dichloro-2-butene is heated with hydrogen cyanide in the presence of anhydrous sodium cyanide and cuprous bromide; (12) methyl alcohol is present as a diluent in a process similar to (11), (13) 1 : 4-dichloro-2-butene is heated with hydrogen cyanide and copper powder alone.  Specifications 646,965 and 646,966 are referred to.
Patent GB-572527-A (GB)
Title: Improved means for guiding sliding doors of cupboards, cases and the like
IPC: E05D15/06
Filed: 1944-03-03
Abstract: 572,527. Sliding doors. HARRIS & SHELDON. Ltd., SANKEY & SONS, Ltd., J., and BUTLER, H. G. March 3, 1944, No. 3978. [Class 52 (i)] To facilitate the cleaning of cabinets and showcases, particularly those for containing food, the lower edges of the sliding doors 2 are guided on or between interrupted ribs 3 with gaps 4 through which crumbs or dirt can be swept.
Patent GB-686059-A (GB)
Title: An improved method of manufacturing plastic shuttlecocks
IPC: B29C45/26
Filed: 1951-02-19
Abstract: 686,059. Moulding shuttlecocks. CARLTON, W. C. Feb. 19, 1951, No. 4010/51. Class 87 (ii). Relates to the injection moulding of plastic shuttlecocks and provides means for facilitating the flow of injected material along grooves in which the skirt of the shuttlecock is moulded. The mould comprises male and female portions A, B, partly conical and embodying grooves S, T for moulding stems and ribs to form the skirt, and is characterised in that subsidiary grooves V are provided between the main stem grooves S. The material is forced through an inlet R, fills a space round a nose W for moulding the cap of the shuttlecock and enters the grooves, and it runs along the rib grooves T from both ends and meets to form a joint. But for the subsidiary grooves V the juncture would be inhibited by trapped air. The grooves may be in the male or female parts of the mould, or in both. The rib grooves T are shaped for easy regulation of the mould parts by making one side of each parallel to the axis of the conical portions. In the Figure, C is an ejector connected to a ram E and passing through the mould and held back against the nose W by a spring F, N is an inlet pipe for water to cool the cap, and U is a heater to reduce chilling of the material as it passes into the grooves. It is desirable to have more than one groove V between two grooves S.
Patent GB-721472-A (GB)
Title: Improvements in or relating to circular knitting machines
Inventor: SHORTLAND ARTHUR
IPC: D04B15/08
Filed: 1952-02-15
Abstract: 721,472. Knitting-machines. MELLOR, BROMLEY & CO., Ltd. Jan. 27, 1953 [Feb. 15, 1952], No. 4061/52. Class 74 (2). Latch closing means for the dial needles of a cylinder-and-dial machine comprise blades 13 disposed in tricks in a carrier 10 rotated about an axis a by a disc 16 which meshes with the stems of the cylinder needles 2 and loop transferring instruments 7. Normally the blades 13 are pressed back in their tricks with their operative ends 13b held clear of the latches 4a of the dial needles. Each time a cylinder needle is raised to take yarn and knit the widened portion of its stem acts on the butt 13d of the relevant blade which is canted outwards so that its end 13b is swung downwardly and outwardly to control the latch 4a of the next following empty dial needle. Specification 574,226 is referred to.
Patent GB-120693-A (GB)
Title: Improvements relating to the Production of Moulded or Shaped Material or Articles by Rolling.
Inventor: ADAMS JOSEPH
IPC: D21J1/00
Filed: 1918-03-08
Abstract: 120,693. Adams, J. March 8, 1918. Embossing and forming.-Relates to the production of corrugated or shaped surfaces on plastic or sheet material by rolling, and comprises rolls built up of alternate fast and loose sections 33, 34, Fig. 2, the fast sections on one roll coinciding with the loose sections on the coacting roll to prevent undue distortion of the material. The invention is shown applied to a. machine for the manufacture of roofing-tiles from asbestos pulp. Material passes from the hopper 1, Fig. 1, to a belt 3 by which it is carried beneath beaters 4 operated by eccentrics 6, tappets &c., and through sets of rolls 8 - - 8<11>. The upper roll of each pair is adjustably mounted and is driven by belt gearing 22, and associated with both upper and lower rolls are wiper rolls 12, 13 of rubber &c. which are yieldingly mounted. The shaped material passes beneath a roll 27 to a cutting-device 29 and the severed articles are delivered to a receptacle 32. The invention is stated to be applicable to the manufacture of corrugated metal sheeting.
Patent GB-305594-A (GB)
Title: Process of separating formic acid from acetic acid
IPC: C07C51/46
Filed: 1929-02-07
Abstract: 305,594. I. G. Farbenindustrie Akt.- Ges. Feb. 7, 1928, [Convention date]. Acetic and formic acids are separated by adding a liquid which is miscible with acetic but not with formic acid, and which forms an azeotropic mixture with formic acid. Suitable liquids are hydrocarbons such as benzene, and halogen derivatives of hydrocarbons such as trichlorethylene and carbon tetrachloride. In an example, the mixed acids are distilled with trichlorethylene, at 75-80‹ C., the condensate separating into layers; the lower layer (trichlorethylene) is returned to the still until all the formic acid is removed. The boiling-point then rises somewhat, the solvent being recovered by the time the temperature reaches about 83‹ C. If the mixed acids contain some water, the formic acid will contain water.
Patent GB-104051-A (GB)
Title: Improvements relating to Atmospheric Gas Burners.
Inventor: HALL ISAIAH
IPC: F23D14/82
Filed: 1916-03-21
Abstract: 104,051. Hall, I. March 21, 1916. Atmospheric gas burners.-A perforated disk a is secured between the adjacent ends of the two parts b, d of the mixing- tube, the parts b, d being connected together by a screwed sleeve f. The burner mouth may be of the form described in Specification 5888/14.
Patent GB-551784-A (GB)
Title: Packing
IPC: B65D83/06
Filed: 1942-03-30
Abstract: 551,784. Packing. SCHMOLKA, H. March 30, 1942, No. 4191. [Class 94 (i)] A package for materials that emit scent or fumes, such as perfume salts or deodorizers, comprises a perforated cylindrical container 1, a wrapping 3 of transparent sheet material, and a string for securing the ends of the wrapper and for suspending the package. Before use, the wrapper is perforated over some or all of the holes in the container.
Patent GB-539366-A (GB)
Title: Roller for fabrics
IPC: B65H75/18
Filed: 1940-03-06
Abstract: 539,366. Hollow rollers. MACKEY, T. W. March 6, 1940, No. 4210. [Class 34 (i)] A cap for the end of a hollow roller for fabrics or rubber sheets is of rolled sheet metal having flanges 14, 16 fitting over the end of the roller, and the inner flange 14 is continued at right angles at 30 with a square opening for a driving shaft and with a cup-shaped reinforcing member 22 spot welded at 18 to a flange on the cap. The part 24 fits against the inside of the roller. A reinforcing washer 28 is also welded to the cap. Two members such as 22 may be combined to form a support for the roller between its ends, and may be retained by stamped out projections 32.
Patent GB-1124003-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F27/02
Filed: 1966-01-31
Abstract: 1,124,003. Air heaters; heat exchange elements. FRANCAISE DU FERODO S.A. 31 Jan., 1966 [6 Feb., 1965; 25 Jan., 1966], No. 4233/66. Heading F4S. An air heater, in which hot water flows from an inlet tube 11 and inlet header 7 through tubes la to an intermediate header 6 and then through tubes 1b to an outlet header 8, has an auxiliary supply pipe 12 for the hot water terminating at the intermediate header 6 thereby enabling a circulation of hot water at the inlet temperature in the intermediate header, air flowing in a transverse direction across the tubes between the walls 4 and 5. A constriction 13 regulates the quantity of water entering via the auxiliary pipe. In a second embodiment some of the water is maintained at inlet temperature until it reaches the intermediate header by having auxiliary plastics insulating tubes within the tubes la. Other embodiments show single tube exchangers in which the auxiliary conduit is a half-length tube between the inlet and the middle of the main conduit, and baffle means are provided from the middle to the outlet to mix the two streams.
Patent GB-215834-A (GB)
Title: Improvements in or relating to boat launching devices
IPC: B63B23/18
Filed: 1923-02-14
Abstract: 215,834. Terry, E. Feb. 14, 1923. Boat-launching apparatus.-The launching-gear enables the boat to be raised from its chocks swung clear of the deck and projected athwartship along a launching rail and released automatically so that it plunges into the water clear of the side of the vessel. A standard 1 movable vertically in a pedestal 2 supports on trunnions 4 a launching rail 3. The boat hangs from trolleys 8 connected by bars 9, and in operation, the track is raised by manipulating worm and worm gear actuating the standard 1. Tilting-gear comprising wire rope 19 and winding-gear 20 are then employed to incline the track outboard, whereupon the boat and carriage travel along the arm until a catch 13 trips the hooks 10, thereby releasing the lifeboat which is projected in a lateral direction. Specification 215,833, [Class 113 (i), Ship and boat fittings &c.], is referred to.
Patent GB-285432-A (GB)
Title: Side-car
IPC: B62K27/16
Filed: 1928-02-11
Abstract: 285,432. Kotzian, L. Feb. 16, 1927, [Convention date]. Side-cars.-In side-cars provided with adjustable backs which can be let down to form an extension of the floor, the side walls are extensible so that the side-car can be lengthened with the side walls extending over the whole length of the extended side car and the side walls are adapted to be folded down to provide a platform for bulky goods or for sleeping purposes. Extensible portions 3, Fig. 1, are adapted to slide in grooves 2 on the side walls 1 and a back 4 may be adjusted and fixed in any angular position. As shown in Fig. 2, the side 11 is adapted to be folded down and is provided with legs 12, as also may the adjustable back 4, Fig. 1. Bars 8 may be provided to support a hammock 9 or a roof.
Patent GB-1100882-A (GB)
Title: Improvements in or relating to electrical connectors
IPC: H01R13/426
Filed: 1965-02-02
Abstract: 1,100,882. Two-part couplings. PYLE-NATIONAL CO. 2 Feb., 1965 [14 Sept., 1964], No. 4484/65. Heading H2E. The pins of a two-part coupling are secured in their insulating support blocks by resilient collets of C-shaped cross-section. As shown, a metal strip 74 is bent to form a cylinder with edges 81 and 82 in close proximity but sufficiently spaced to allow it to be radially compressed for insertion into an insulated support block. Saw-tooth shaped projections on the inside of the apertures in the support block enter slots 77a and hold the collet in place. Fines 76 are bent inwardly so that their free ends can engage behind an enlargement on an inserted contact-pin. The support blocks may form part of a multiple-pin type coupling as shown in Fig. 1. Male pins 13 have enlargements 43, 44 which engage either side of a rubber sealing disc 29 positioned between insulating blocks 50, 51, and are held in the block 50 by collets 74. Female pins 39 are similarly mounted in the other part of the coupling.
Patent GB-416021-A (GB)
Title: Means for altering the timing of electrical impulses for the grid control of vapour arc rectifiers
IPC: H02M7/15
Filed: 1933-03-02
Abstract: 416,021. Rectifying alternating current. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, CALVERLEY, J. E., Crescent Road, Rowley Park, Stafford, and BALL, R. D., Pheonix Works, Bradford, Yorkshire. March 2, 1933, No. 4486/34. Divided out of 413,797. [Classes 35 and 38 (ii).] In a grid-regulated arc rectifier 2 in which positive voltage impulses for effecting ignition are supplied to the grids through a rotary distributer 11 driven by a synchronous motor M the stator windings 14 of which are energized in synchronism with the main supply to the rectifier, the D.C. field of the motor is determined by two windings 22, 23 on different axes and the relative strengths of the two components are determined partly by manual adjustment of a potentiometer R and partly by the load current of the rectifier as by introducing into the circuit of one of the windings a voltage derived from a shunt 24 in the load circuit of the rectifier. Thus the timing of the ignition impulses and therefore the output voltage of the rectifier may be varied both manually and automatically in accordance with load current. In an alternative arrangement, Fig. 2 (not shown) the voltage across the shunt 24 operates on a separate field winding, and in a further arrangement, Fig. 3 (not shown) the shunt 24 is replaced by a current transformer on the primary side of the transformer 3 operating through an auxiliary rectifier. The invention may also be applied to arrangements in which an impulse generator is employed in place of the battery and distributer 11.
Patent GB-234775-A (GB)
Title: Improvements in carriages for anti-aircraft guns
IPC: F41A27/24
Filed: 1925-02-18
Abstract: 234,775. Soc. Anon. des Anciens Etablissements Hotchkiss et Cie. May 28, 1924, [Convention date]. Mountings for anti-aircraft guns comprise a system of links 7, 9, 13 arranged between the gun or cradle 6 and a vertically pivoted frame 3 to permit of large elevational movements without requiring inconvenient displacements of the gunner's head. In the simplest form, shown diagrammatically in Fig. 1, the links resemble a pantograph and are so proportioned that, when the gun is moved in elevation from the horizontal to the vertical position, by .the rotation of a screw 5, the position 15 occupied by the head of the gunner moves horizontally along the line 15, 4. Fig. 4 shows a modification which gives greater stability in the extreme positions of elevation. The link 9 is triangular in form and a differential screw 5, 18 is provided to give a forward movement to the frame 3 to compensate for the rearward movement of the sighting point 15. Fig. 16 shows a practical form of the invention, details of which are shown in Fig. 6. The link 7 is pivoted to the frame 3 at a point forward of the point of attachment of the link 13. The frame 3 is slidably mounted in a support 17, a sleeve on which is clamped at 31 to the upper part of a pedestal 1 which rotates on ball bearings relatively to a pillar 2 fixed to a motor car, ship's deck, or tripod. The gunner's seat 36 is foldably connected to the rotary pedestal 1 and the gunner trains the gun by using his feet against the ground or platform on which the gun stands. To limit the angle of training during sweeping fire, a lever 50 engages stops 41 carried by adjustable rings 38, 39. To prevent automatically, the training of the gun into a danger zone at low angles of elevation, the lever 50 is spring controlled and engages the lower end of a vertical spring-pressed rod 53, the upper end of which bears against a horizontal sliding bar 56. This bar is operated to release the lever 50 when the sliding block 12 reaches the forward end of the frame 3.
Patent GB-321127-A (GB)
Title: Improvements in casement stays
IPC: E05C17/34
Filed: 1929-02-11
Abstract: 321,127. Dombrain, H. A. A., and Green, G. Feb. 11, 1929. Stays.-The end of the link A1 of a pair of jointed-folding links A, A1 forming a casement stay is prolonged beyond its pivot, this pivot being integral with a quadrant B secured to the window frame and having holes E with which engages a spring-pressed pin C. The spring may be a plate spring D or the spring may be mounted in a housing surrounding the pin C.
Patent GB-825089-A (GB)
Title: Improvements in the viscosity stabilisation of polyamides
Inventor: COWELL CLIFTON DOUGLAS
IPC: C08G69/02
Filed: 1957-02-09
Abstract: High molecular weight linear polyamides melting above 175 DEG  C are made by heating an amino acid or an approximately equimolecular mixture of a dicarboxylic acid and a diamine, or an amide yielding functional derivative of said amino acid or diamine and/or dicarboxylic acid, or a polyamide obtained from said amino acid or diamine and dicarboxylic acid in the presence of a molecular proportion of less than 4% (calculated on the aforesaid amino acid or dicarboxylic acid or functional derivative thereof) of a tertiary amine of the formula RR1NR11X, where R and R1 are the same or different alkyl or aralkyl groups, chosen so that the aralkyl has at least 2 carbon atoms in the side chain and the amine RR1NH boils under atmospheric pressure above a temperature which is 50 DEG  C. below the melting point of the polyamide, R11 is an aliphatic chain of from 2 to 10 carbon atoms and X is an amide-forming group. Specified amide-forming groups X are amino, formylamino, carboxy and carbomethoxy. Specified tertiary amines, which may be added in the form of their salts, are N:N-di(n)octyl-ethylene diamine, N - (3 - aminopropyl) - di(n)hexylamine and N:N-di-(n)-dodecyl-ethylene diamine.  In the examples, polyamides are made by heating hexamethylene diammonium adipate with (1) N:N-di(n)octyl-ethylene diamine, and (2) N-(3-aminopropyl)-di(n)hexylamine.  The products of the invention may be used as filaments and films.  Specifications 461,236, 461,237, 495,790, [all in Group IV], and 687,036 are referred to.
Patent GB-1035274-A (GB)
Title: Improvements in or relating to baths
IPC: A47K3/02
Filed: 1964-02-04
Abstract: 1,035,274. Baths. G. E. COWLEY. Jan. 12, 1965 [Feb. 4, 1964], No. 4589/64. Heading A4N. Acrylic baths are integrally strengthened, so as to be self-supporting without a separate framework, by an externally applied layer or layers of glass fibre reinforced resin. The resin is preferably applied in greater thicknesses at the bottom of the bath and beneath the rims. Strips 20 and 21 of wood are embedded in the resin to provide additional reinforcement, and may be used to support side panels. Adjustable feet are carried by embedded metal straps 12. Alternatively, the feet may be carried on L-shaped brackets (Fig. 3, not shown) or be integral with straps 12.
Patent GB-564430-A (GB)
Title: Improvements in and relating to abrasive articles
IPC: B24D18/00
Filed: 1943-03-22
Abstract: 564,430. Glass. NORTON GRINDING WHEEL CO., Ltd. March 22, 1943, No. 4665. Convention date, April 11, 1942. [Class 56] [Also in Groups V and XI] A dry mix containing abrasive grains and powdered glass, with or without a powdered refractory filler, is subjected to heat and pressure in a mould, the heat being sufficient to render the glass plastic. Fig. 1 shows apparatus for making a grinding wheel, comprising a heat-insulated cylinder in which is disposed mould ring 13 of graphite or stainless steel, a mould base 14, arbor 16 and plunger 20, all of graphite, and an arbor-ejecting steel rod 22. The mould rests upon a support 25 of alumina or steel, and is enclosed in a refractory tube 31 around which is wound electric heating resistance wire. A thermocouple 50 indicates the temperature within the mould ring. The abrasive may be diamonds. The mix may include two different kinds of boro-silicate glass, of different fusibilities. The filter may be silica, clay, feldspar, alumina, silicon or silicon carbide. The pressure, rate of heating, &c. may be so adjusted that the finished article is either free from micro-pores or contains non- interconnected micro-pores.
Patent GB-392306-A (GB)
Title: Improvements relating to castors for movable furniture and trucks
IPC: B60B33/00
Filed: 1932-02-18
Abstract: 392,306. Castors. OWEN, H. A. W., Albion Works, Dartmouth Street, Birming- ham. Feb. 18,1932, No. 4813. [Class 52 (i).] A castor for use on movable furniture and trucks carries rollers mounted on the ends of a spindle which is pivoted intermediately in a bearing shaped so that the spindle can rock in a vertical plane, to accommodate the castor to unevenness in the floor. As shown in side sectional and front elevation by Figs. 1 and 2, respectively, a bracket a, which is capable of rotation about a vertical axis on ball bearings c, is provided with a bearing for a horizontal spindle d which carries freely-mounted rollers e. The axis of the spindle d is disposed eccentrically in relation to the vertical axis of the bracket a and the bearing for the spindle d is bell-mouthed in shape to allow the spindle d to rock in a vertical plane about a pivot pin f. To minimize frictional resistance due to contact of either roller e with one side of the bracket a, an antifriction roller g is mounted on a pin h in a gap i in the socket. An additional gap and pinhole k is providad so that the position of the roller may be changed or so that a supplementary roller may he employed.
Patent GB-1032740-A (GB)
Title: Improved convector heater
IPC: F28D1/02
Filed: 1965-02-04
Abstract: 1,032,740. Convector space heaters. SOC. DI FATTO GALLETTI UGO. Feb. 4, 1965 [Feb. 21, 1964], No. 48l6/65 Heading F4S. A convector heater comprises a number of horizontal radiator tubes 5 arranged in parallel groups connected in series between an upright conduit 1 divided at 4 into a number of header chambers and a further upright conduit 6 separated at 7 into headers to provide a sinusoidal flow path for heating fluid to heat air which is induced through adjacent convective passages 10, Fig. 2 (not shown), formed from juxtaposed elements 9 of box-like cross-section disposed around the tubes 5. The sides 12, Fig. 3 (not shown), of the elements may be formed with undulations to increase the radiating surface.