baber/WOPTO huggingface dataset:
Patent GB-829461-A (GB)
Title: An improved machine for harvesting turnips, mangolds and like root crops
IPC: A01D25/02
Filed: 1957-08-28
Abstract: 829,461. Root-crop harvesters. ROSS, J. A. Aug. 27, 1958 [Aug. 28, 1957], No. 27133/57. Class 6(3).  A root-crop harvester is provided with a broad-rimmed ground-wheel 2 having internal circumferential pockets 10, a disc-coulter 18 being rotated in a horizontal plane near the lowest point of the wheel, the coulter having a convex central part 19 by which each root, after being tailed, is swept into the lowermost wheel-pocket to be carried around thereby and discharged on to a conveyer 22 delivering to a receptacle (not shown). The wheel 2 is similar to that described in Specification 3872/14 and is mounted in a frame 1 supported on a forward caster-wheel 4 and a side-wheel in addition to the wheel 2. The conveyer comprises slats 23 attached to an endless chain 24 driven by a shaft 26 connected to the tractor or by the side ground-wheel. The coulter is carried on a frame 15 pivotally suspended from the main-frame 1 and resting on a skid 16. The frame 15 includes a guide 20 partially surrounding the coulter to impel the tailed roots into the wheel 2.
Patent GB-668285-A (GB)
Title: Improvements in or relating to method of producing alkyl esters of alpha-beta unsaturated monocarboxylic acids
IPC: C07C69/56
Filed: 1948-10-19
Abstract: Alkyl esters of alpha-beta unsaturated carboxylic acids are made by continuously adding a mixture of an aliphatic beta-lactone having at least one hydrogen atom connected to the alpha carbon atom with a saturated aliphatic monohydric alcohol to a heated solution of an alkyl sulphuric acid, continuously removing vapours of the ester, and collecting the ester.  Many lactones are specified, representative being beta-propiolactone, which is preferred, beta-butyrolactone, alpha-ethyl-beta-propiolactone, isovalero-lactone and n-caprolactone. Many alcohols are specified, representative being methanol, methyl-ethyl carbinol, tert.-amyl, myristyl and palmityl alcohol. Lower alcohols are preferred.  Preferred proportions of reactants are 1 mol. of lactone to 1.5 mols. of alcohol to 1.0 mols. of acid.  A polymerization inhibitor is desirable, many being specified, and sulphur is particularly desirable.  A small quantity of ferrous sulphate enables the reaction to proceed at a lower temperature and gives bigger yields.  Temperatures specified are 100-200 DEG  C. for the production of lower alkyl acrylates.  Times of 25 to 30 hours are given.  In Examples (1)-(4) methyl acrylate is made from methanol, beta-propiolactone and methyl sulphuric acid in the presence of ferrous sulphate and hydroquinone, the methanol-methyl acrylate mixture distilling off being separated by distillation with n-hexane; and (5) ethyl acrylate is made from ethanol, beta-propiolactone and ethyl sulphuric acid in the presence of hydroquinone and ferrous sulphate.  Ethyl crotonate and a mixture of propyl tiglate and angelate are formed from ethyl sulphuric acid with beta-butyrolactone and alpha-methyl-beta-butyrolactone respectively.  In the Specification as open to inspection under Sect. 91, aromatic lactones and alcohols such as allyl, benzyl and chloro-ethyl alcohol, and cyclohexanol, ethoxy ethanol and terpineol are specified.  This subject-matter does not appear in the Specification as accepted.
Patent GB-858356-A (GB)
Title: Stacked disk filter
Inventor: JUST RAYMOND HERMAN
IPC: B01D25/26
Filed: 1958-08-25
Abstract: 858,356. Filters. SCREEN PRODUCTS Inc. Aug. 25, 1958, No. 27160/58. Class 46. A liquid filtering disc 13, for use with filters of the stocked disc type, comprises a pair of fine-mesh annular filtering screens 16 and 17 and a spacing member 18 interposed between. The spacing member 18 has an inner ring 19 and an outer ring 20 with ribs 21 extending between and connecting the two. The ribs 21 may be of S-form, concave or flat in cross-section. The inner ring 19 is crimped while the outer ring 20 is substantially flat. A ferrule 23 secures together the outer peripheral edges of two screens 16 and 17 and the outer ring 20 of the spacer 18. The inner peripheral portions of each of the screens 16 and 17 are individually provided with sealing means in the form of a ferrule 24 binding the edges separately. The filtering disc 13 is assembled in face-to-face relation with filtering members of similar construction. The sealing ferrule 24 of each filtering disc 13 abut and is in sealing contact with the sealing ferrule of each of the adjacent filtering discs. Alternatively the outer ring 20 of the spacing member 18 may be crimped while the inner ring 19 is substantially flat. The outer peripheral portion of each screen are individually provided with sealing means in the form of a ferrule 24 and the discs assembled in a face-to-face relationship as before. In this case the flow of liquid is in the reverse direction.
Patent GB-790330-A (GB)
Title: Improvements in or relating to a supercharged four-stroke-cycle internal combustion engine
IPC: F02B33/34
Filed: 1955-09-23
Abstract: 790,330. Four-stroke engines; charge oumos; exhaust systems. SCHWEIZERISCHE LOKOMOTIV-UND MASCHINENFABRIK. Sept. 23, 1955 [Sept. 27, 1954], No. 27166/55. Class 7(2) In a four-stroke engine 21, suitable for operation under conditions in which it is subjected to high-load peaks, haying means for instantaneously adjusting the fuel pump to maximum feed, e.g. as disclosed in Specification 787,439, and supercharged by a centrifugal or other compressor 10 driven by the engine or an electric motor 22, suction wave scavenging is effected by an exhaust system, preferably comprising a tube 23 of constant cross-section substantially equal to that of the or each exhaust port it serves, a diffuser 24 of gradually increasing crosssection and a receiver 25 open to atmosphere. In a single-cylinder diesel engine the cylinder exhaust outlet communicates directly with a straight tube leading to an aligned diffuser, but as shown two tubes 23 each serve a group of three diesel cylinders the scavenging periods of which do not overlap. The length of each tube 23 is preferably equal to half the speed of sound in the exhaust gases times the period between exhaust valve and inlet valve opening, and the length of each diffuser 24 half the said speed times the scavenging period of inlet and exhaust valve overlap. Each diffuser 24 has a conical angle of from 4 degrees to 12 degrees. The compressor 10 may be a piston or other positive displacement compressor, feeding the engine via a reservoir.
Patent GB-1058972-A (GB)
Title: Thickening water-immiscible liquids
Inventor: BURAK NATHAN
IPC: B01J19/06
Filed: 1963-07-10
Abstract: Greases and polishes comprise a water-immiscible liquid, a siliceous thickener and 0.5-40% by weight of the liquid of an organic silicate ester.  The thickener may be fume silica, silica aerogel, talc or a precipitated inorganic silicate, e.g. calcium, sodium-aluminium and calcium-aluminium silicates.  Silicates specified are aliphatic, phenyl substituted aliphatic, aromatic, mixed aliphatic aromatic and alkyl acyl ortho and poly-silicates. Liquids specified are lubricating oils, white spirit, toluene, ether and perchlorethylene.
Patent GB-187594-A (GB)
Title: Puncture self sealing compositions for pneumatic tyres and process for producing same
IPC: C09K3/10
Filed: 1922-10-09
Abstract: 187,594. Soc. J. Houdry et Fils. Oct. 18, 1921, [Convention date]. Compositions containing albuminous matter, fibres, &c.-A composition for automatically sealing punctures in tyres consists of a mixture of a substance having base of cellulose, such as bran, soda lye and salicylic acid in alcoholic solution to which may be added asbestos, kieselguhr, antiseptic and colouring matters. Suitable, ingredients and proportions are 30 kg. of bran, 2.1 kg. of carbonate of soda, 5.4 kg. of salicylic acid, 36 kg. of asbestos, 4 kg. of kieselguhr, 2.5 litres of sapocresol, 500 cc. of turpentine, 150 grm. of creosote, 50 grm. of Soudan red, 40 litres of alcohol, and sufficient water to make up 600 litres. The bran is boiled with some of the water, and the soda solution is added. After cooling the acid is added, and subsequently the other ingredients with constant kneading until a homogeneous product results. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the replacement of salicylic acid by dilute hydrochloric acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-505362-A (GB)
Title: Improvements in compositions of matter containing anti-hygroscopic agents and processes of preparing the same
IPC: A61K9/50
Filed: 1937-10-08
Abstract: 505,362. Manures. ARMOUR & CO. Oct. 8, 1937, No. 27345. Convention date, March 1. [Class 111] [Also in Group VI] Hygroscopic substances of animal origin including artificial manures are treated to render them non-hygroscopic by coating their particles with a mono- or diglyceride of a higher fatty acid. A suitable method of application is by mixing a moist product with a paste or any preparation of the glyceride and drying and powdering the mixture. A proportion of from 5 to 15 per cent of glyceride on the dry material is suitable.
Patent GB-381325-A (GB)
Title: A combined gas and liquid shut-off device for gas heated liquid heaters
IPC: F24H9/20
Filed: 1931-10-01
Abstract: 381,325. Valves for liquid heaters. WENDER, E., 62A, Leipzigerstrasse, Frankfort-on-Main, Germany. Oct. 1, 1931, No. 27347. [Class 135.] A combined gas and liquid valve for gas heated liquid heaters is normally actuated by hand but is adapted to close automatically in the event of an interruption in the liquid supply. The liquid supply which enters at 25 is controlled by a facing disc 31 on a diaphragm 22 engaging a seat 28. The gas supply is controlled by a valve 16, secured to a tubular spindle 15 resting on a member 25 secured to the diaphragm, engaging a seat on an inner partition 3. The hollow actuating spindle 12 has an operating handle 50 and has a screwed part working in a screwed part 9 mounted in a cover 4 detachably secured to the casing 1 by a screwed clamping ring 6. The lower end of the spindle engages the gas valve which. is adjustably loaded by a spring 18 and a spindle 14 is arranged between an adjusting screw 20 in the spindle and the hemispherical end of the tubular part 25. The seat on the partitions may be spring supported or a spring may be inserted between the spindles 14, 15. A throttling disc 26 is adjustably mounted on an extension of the member 25 and co-operates with a tapered passage way 28 to reduce the water supply while maintaining the gas supply when warmer water is desired. The disc 26 is so proportioned or is provided with grooves so that a minimum supply of water is maintained under all conditions. An indicating pointer 35 co-operating with a dial plate 41 is secured by a grub screw 37 to a spindle 36 mounted in a drawn metal fitting 39 by means of a bush 42 and bracket 38. The pointer has an arm having an adjustably mounted ball engaging a coned member 32 adjustably secured to the valve spindle by a fine thread 121 and clamp 12<11>. A slotted member 45 secured to the actuating handle by bolts 44 interlocks with the valve on the pilot light conduit. The actuating screw may be replaced by an eccentric or other actuating device.
Patent GB-1065539-A (GB)
Title: Improvements in or relating to prestressed structures, e.g. concrete structures
IPC: B28B23/04
Filed: 1964-07-02
Abstract: 1,065,539. Post-tensioned concrete; tank walls. A. M. JAMES. July 2, 1964, No. 27349/ 64. Headings E1T and E1W. Post-tensioning wires are separated from generally curved surfaces by rollers. The tank of Fig. 1 has concrete sections grouted together e.g. of 10b, and parallel sets of wires 24 anchored at four points 26 around the tank by collets 28 with internal wedges. The wires are spaced from the walls by short vertical rollers 30, and may be covered in another layer of concrete, (as in Fig. 7, not shown). The concrete beams shown in Figs. 8 and 10 employ rollers 58a and 72 respectively, which are clipped on to the wires before they are placed in position, the rollers having central peripheral grooves and clips 38 which are rotatable thereon.
Patent GB-849434-A (GB)
Title: "improvements in the chlorination of hydrocarbons in the gas phase"
IPC: C07C17/12
Filed: 1957-09-02
Abstract: A process for the chlorination of a hydrocarbon or a partially halogenated derivative thereof comprises allowing chlorine to act on a hydrocarbon or a partly halogenated derivative thereof in the gas phase at a temperature at or above its boiling point up to about 400 DEG  C. in the presence of a catalyst which contains a halide of a platinum metal.  The catalysts specified comprise platinum, palladium, iridium and rhodium as halides, e.g. chlorides, bromides and iodides.  Carriers specified include aluminium oxide, silica gel, pumice, fuller's earth and active carbon and such carriers may be impregnated with aqueous solutions of compounds of the platinum metals and heated.  Catalysts so prepared may be treated with chlorine before use.  The catalysts may optionally be employed in fluidized form.  The starting materials may be vapourized before feeding to the reaction vessel or may be vaporized therein. Preferably an inert organic solvent, e.g. a chlorinated hydrocarbon may be led into the reaction at the same time as the starting material.  The chlorine may be mixed with nitrogen or other inert gas.  Included among the starting materials mentioned are alkanes from methane to octane including the normal and branched chain forms and partially halogenated derivatives thereof, cyclopentane, cyclohexane, methyl cyclohexane, benzene, toluene xylene, indene, diphenyl and naphthalene and their partially halogenated derivatives of trichlorobenzene.  Mixtures of hydrocarbons may be chlorinated, e.g. a mixture of cyclohexane and naphthalene.  In examples: Para-dichlorobenzene, together with some ortho,-di-and1, 2, 4-trichlorobenzenes is obtained by continuous chlorination of benzene in the presence of a palladium chloride catalyst supported on aluminium oxide whilst similar results are obtained with iridium, rhodium and platinic chlorides on aluminium oxide or palladium chloride on silica (1); normal hexyl chloride is obtained by chlorinating normal hexane in the presence of carbon tetrachloride under similar conditions (2); cyclohexyl chloride is obtained by chlorination of cyclohexane in the presence of carbon tetrachloride and nitrogen with a fluidized palladium chloride or aluminium oxide catalyst-(3); and toluene is chlorinated to obtain mono- and dichlorotoluene in the presence of nitrogen and a palladium chloride catalyst supported on alumina.  Specification 738,992 is referred to.
Patent GB-390510-A (GB)
Title: Improvements in or relating to motion picture cameras
IPC: G03B21/32
Filed: 1931-10-05
Abstract: 390,510. Kinematograph cameras. NOPPER, M., 2, Gartenstrasse, Furtwangen, Baden, Switzerland. Oct. 5, 1931, No. 27638. [Class 97 (i).] The housing of a kinematograph camera is constructed with projecting portions 1 and recessed portions 2 ; members such as the objective g, finder c, film-counter d, &c., may be placed in the recessed portions so as to protect them, and carrying members b<2> may be capable of use as bands b<1> enabling the apparatus to be supported by the head of the operator. A pivoted cap f may be provided to cover the lens, and may be opened, against the action of a spring, by a cord n passing over a support m and secured to a release button e. The button may be depressed by the fingers of a hand grasping the recessed portions of the housing, and may be held depressed by a sliding catch h. The carrying members may be held by hooks or rings k when in use as such.
Patent GB-1311635-A (GB)
Title: Watertight watch case
IPC: G04B39/02
Filed: 1971-06-14
Abstract: 1311635 Watches A SCHOLLER and E BANDELIER 14 June 1971 [19 June 1970] 27705/71 Heading G3T In a watertight watch case having a part such as a bottom or a glass 2 sealed to a case body or bezel 1 by means of a gasket 3 which is of L-shaped cross-section and which is compressed between the bottom or glass and a housing recess, a step 6 is provided along at least part of the lateral wall 4 of the recess to aid retention therein. The gasket 3 is of a named synthetic resin and is attached to the bottom or glass 2 prior to their assembly in the recess by means of a fitting ring (7), Fig. 2, (not shown) and a push-member 8.
Patent GB-199655-A (GB)
Title: Improvements relating to outdoor junction boxes for electric circuits
IPC: H02G15/06
Filed: 1922-10-13
Abstract: 199,655. Johnson & Phillips, Ltd., and Orton, W. J. P. Oct. 13, 1922. Junction boxes.-In an outdoor junction box of the kind in which each branch connection is insulated from the box by inner and outer tubular insulators, coaxially arranged, the outer insulator being readily removable without dismantling the box, the outer insulator M is cemented into a metal ring N which is forced into water-tight contact with a flange L of the box by a bolt H passing axially through the inner insulator K.
Patent GB-686979-A (GB)
Title: Improvements in or relating to piezo-electric crystal controlled frequency selective apparatus
IPC: H03B5/34
Filed: 1950-11-14
Abstract: 686,979. Impedance networks. HALL, J. W. Nov. 14, 1951 [Nov. 14, 1950], No. 27849/50. Class 40 (viii). The range of frequency variation of a crystal controlled circuit is adjusted by means of a condenser in series with a parallel tuned circuit incorporating the crystal. As shown, the crystal 3, in the grid of oscillator valve 1, is series tuned by the variable condenser 6.
Patent GB-756957-A (GB)
Title: Hypodermic injector
IPC: A61M5/30
Filed: 1953-10-09
Abstract: 756,957. Hypodermic syringes. LABORATOIRE D'HYGIENE SCIENTIFIQUE HYGISCIENT. Oct. 9, 1953 [Nov. 24, 1952], No. 27860/53. Class 81(2). [Also in Group XXVIII] A hypodermic injector comprises a casing within which is a pump cylinder which has an inlet communicating with a container for injection liquid removably secured on the casing and which comprises a first chamber for receiving a piston member with an annular clearance and a second chamber which is in alignment with and adjacent the first chamber and is adapted to receive the piston member with a tight sliding fit, the second chamber communicating with an injection outlet at one end of the casing, the piston member being so positioned that, as it reciprocates, it alternately enters and leaves the second chamber through the first chamber and the piston member being operatively connected with an electromagnetic vibrating means in the casing and fed with alternating current through a control switch. The device comprises a body 1 on which an injection head is screwed. A nipple 3 connected with a flexible hose 4 through which liquid may be supplied from an external container such as a syringe 5, communicates through a duct 6 with a cylindrical feed chamber 7 and a delivery chamber 8 which leads to a calibrated hole 9 through which the injection is made. A piston 11 caused to vibrate by electromagnetic means alternately sucks liquid from the container 5 and forces it through the hole 9. The electromagnetic vibrating means comprises an electromagnet 28 energised by alternating current and an armature 12 mounted on a rod 39 which passes axially through the electromagnet 28 and bears against a head 37 of the piston 11 which is held in bearing engagement by a spring 38. Two discs 15, 16 are secured to the rod 39 on screw threads 17, 18 of opposite pitches and are mounted so that they can slide on guide rods 19. Opposite compression springs 20, 21 bear at their outer ends against the discs 15, 16 and at their inner ends against an annular flange 22 which is slidably mounted on a rod 23 and is in screwthreaded engagement with another rod 24. The position of the latter rod 24 may be adjusted by its sunk head 25 to vary the neutral position of the annular flange 22 and thus vary the air gap between the armature 12 and the electromagnet 28. The rod 39 carrying the armature 12 may also be adjusted by its rear end to vary the interval between the discs 15, 16 and therefore the stress in the compression springs 20, 21. Alternative constructions of electromagnet and armature may be provided (not shown). A hand grip 33 contains a switch 34 operated by a trigger-like part 35 and pins 36 on which a female connector may be plugged.
Patent GB-463486-A (GB)
Title: Improvements in apparatus for operating the doors of coke ovens and like plant
IPC: C10B25/14
Filed: 1935-10-09
Abstract: 463,486. Door-operating appliances. WELLMAN SMITH OWEN ENGINEERING CORPORATION, Ltd., and WOOD, H. C. Oct. 9, 1935, No. 27868. [Class 65 (i)] [Also in Group XIII In apparatus for operating the doors of coke-ovens and the like, the doors are provided with latching means operated by mechanical means carried on the door-extracting mechanism ; the latches may also be operated by mechanical means, which may be connected with the door-lifting means, all these devices being controlled from a single position. In the form shown, the door 5 carries swinging latch-bars 3, 4 which engage hooks 6 on the door-frame. The latch-bars 3, 4 are tightened by screws 8 having cross-arms 17 which are engaged by forks 18 carried on the doorextracting head 14, the forks being rotated, to operate the screws 8, by gearing from handwheels 34; the forks 18 are slidable in the head 14 against the action of springs, to allow yielding if they are not in position for embracing the arms 17 when the head 14 is brought up to the door. The door is lifted by an arm 12 pivoted on the head 14 and operated by a screw and gears from a hand-wheel 52, and this arm 12 is connected by a link 56 to a pivoted finger 53 which engages and operates the upper latch-bar 3, the lower latch-bar 4 being connected to the upper one by a link 57 for simultaneous operation. In a modification, the hand-gearing at 52 is replaced by an electric motor, acting through gears and screw on an extension of link 56 and controlled from the same position as the movement of the whole machine, and the hand wheels 34 are placed close to the same position, operating through extension shafts and gearing. The latchoperating finger may be formed on the link 56, the member 53 then being replaced by a simple link.
Patent GB-1128880-A (GB)
Title: Improvements in metal bonding
IPC: F17C13/00
Filed: 1967-06-16
Abstract: 1,128,880. Metal bell-jar. GENERAL ELECTRIC CO. 16 June, 1967 [16 Sept., 1966], No. 27879/67. Heading B1X. [Also in Divisions B3 and F1] A metal bell jar 10 has a tube or channel 14 defining a fluid passage joined to its wall by a metal coating 15 deposited by spraying. The fluid passage may extend sinusoidally or helically. In the embodiment, a stainless steel tube is located on the stainless steel chamber by tack welding, local spraying or clamping, and the assembly grit blasted with aluminium oxide grit, silica, sand or glass, followed by air blasting. The assembly is now ready for spray coating with molten aluminium or aluminium alloy. The fluid passage may be attached to the inside of the vessel.