baber/WOPTO huggingface dataset:
Patent GB-1465696-A (GB)
Title: Needle-threading devices
IPC: D05B87/00
Filed: 1974-06-17
Abstract: 1465696 Needle threading devices T MAYERS 17 June 1974 [18 June 1973] 28894/ 73 Heading D1G In a needle threading device wherein a needle is received eye down in a channel 22, a hook 10 is slid along a passageway 7 to pass through the needle eye, after which a thread is laid across a slot 21, beyond which the hook passes, to overlie the hook before the hook is withdrawn to pull the thread through the eye, the hook 10 is secured to one end of a guide block 9 which has a rod 11 projecting from the other end to pass into a hollow slider block 12 containing a spring 19 which acts on the end of the rod 11. The block 12 has a thumb grip 13 extending therefrom through a slot in the side of the body; a main spring 15 being disposed between the block 12 and a shoulder 15. The rod 11 is of non circular section and passes through an opening of similar shape in the block 12 to prevent rotation of the rod and the hook. The body of the device is of moulded plastics and comprises two parts 1, 2 secured together by pips and depressions 5, 6. The device also exhibits a gripping tab 4; in a set of the devices the tabs may be of different colour or shape to identify the threader required for a particular size of needle.
Patent GB-358711-A (GB)
Title: Improvements in or relating to hydraulic presses
IPC: B30B15/22
Filed: 1930-09-27
Abstract: 358,711. Embossing presses. TURNER TANNING MACHINERY CO., Ltd., Railway Foundry, Bramley, near Leeds.- (Turner Tanning Machinery Co. ; 14, Boulevard Arago, Paris, and Merenda, P. ; 128, Rue Bouscicaut, Fountenay aux Roses, Seine, both in France.) Sept. 27, 1930, No. 28998. [Class 100 (ii).] In a hydraulic press applicable for embossing leather &c., the main piston is moved up to the work by an auxiliary piston, the latter being then in such a position as to admit liquid to act on the main piston. In one form, a valve 103, Fig. 1, is closed to cause liquid supplied by a pump through a pipe 50 to pass through pipes 56, 60, Fig. 2, to an auxiliary cylinder 22 ; the auxiliary piston 20 is thereby raised until its port 34 allows the pressure liquid to pass into the main cylinder 18, which has been filled from a reservoir through a valve 44. A safety-valve 105 is fitted, the auxiliary piston has a spring-pressed abutment 30, and the platen 10 has a spherical portion 14 fitting a recess in the main piston 12. When the valve 103 is opened, liquid returns to the reservoir from the cylinder 18 first through a valve 66 and pipe 62, and then through the valve 44 which is opened by a rod 72 linked to the platen 10. In another form, a pump 128, Fig. 5, normally circulates liquid through pipes 126, 142, a reservoir 144, and a pipe 180. The closure of a valve 140, Fig. 7, causes liquid to pass to the auxiliary cylinder 12 and raise the piston 122, until it allows liquid to enter the main cylinder 120 through ports 172. The main cylinder is connected to the reservoir by a pipe 146, in which is a spring-pressed valve 148, positively opened by the descent of the main piston by a lever 180 acting on the valve stem 152.
Patent GB-207958-A (GB)
Title: Improvements in or relating to the treatment of asbestos materials
Filed: 1922-10-25
Abstract: 207,958. Hydroloid, Ltd., (Exportingenieure f³r Papier-und Zellstofftechnik Ges.). Oct. 25, 1922. No Patent granted (Sealing fee not paid). Joint-making packing. - Asbestos materials, such as cord, fabric, paper, and board for jointmaking packings and other purposes, are impregnated with a sizing-agent such as animal size, gelatine, or casein, and also with a hardening- agent such as alum, chrome, salts or formalin. The material is either allowed to remain in the sizing-bath at a temperature of 35-40‹ C. until completely impregnated or it is passed between pressure rolls either while in the sizing-bath or subsequently. Acids, such as lactic acid, or alkalis, such as caustic soda, may be added to the sizing-bath to accelerate impregnation. After the hardening treatment the material may be impregnated with glycerine to render it flexible and varnished to retain the glycerine. Instead of glycerine, an addition of emulsifiable material such as soap or castor oil may be added to the sizing-bath.
Patent GB-153780-A (GB)
Title: Improvements in steam superheaters
IPC: F22G7/14
Filed: 1919-11-22
Abstract: 153,780. Milne, J. S., and McGregor, R. Nov. 22, 1919. Field-tube superheaters; fire and smoke tube superheaters.-A steam-superheater, applicable to existing tubular boilers, and shown as applied to a Scotch marine boiler, comprises a saturated steam manifold 5 connected to a stop-valve 3 on the boiler and discharging into mains 6, preferably of decreasing diameter towards their closed ends. Secured in the mains 6 are tubes 7 discharging into concentric superheating tubes 8 projecting into fire tubes 12 and carried by headers 18, which are secured to a superheated-steam manifold 22. Centring of the tubes 7, 8, 12 is effected by spiders 11, 13. The tubes 8 are preferably corrugated to give increased treating surface as shown in Fig. 10. To avoid damaging the superheater when raising steam, water may be circulated through it by way of a valve 29, pipe 27-with or without a circulating pump 32,- valve 31, and discharge pipe 35 and valves 36, 37. The manifolds 5, 22 are fitted respectively with drain cocks 25, 26<a>. The central saturated steam main 6 is provided with a valve 38, which may be opened should the temperature of the superheated steam become excessive. The manifold 22 is fitted with a safety-valve 46.
Patent GB-969873-A (GB)
Title: Roof-bolting machine
IPC: E21D20/00
Filed: 1962-07-30
Abstract: 969,873. Screwing up machines. GARDNER-DENVER CO. July 30, 1962 [May 22, 1962], No, 29163/62. Heading B3N. [Also in Divisions B4 and B8] A roof bolting machine comprises means for storing and feeding a number of bolts, means for drilling holes in the roof and means for screwing up the bolts. The machine 10, Figs. 1, 1a, 2, comprises a self-propelled carriage 30, including a control console 42, a boom 34 on the end of which is pivoted a bolt-tightening device 56 and a pneumatic percussive drill 54, and a magazine 58 for supplying the bolts to device 56. Boom 34 is pivoted at three points 47 by hydraulic cylinders 48 and 50, and is telescoped by an hydraulic cylinder 52. A bracket 78, Figs. 5, 6, 7, is pivoted about boom 34 at 70 and 76 by hydraulic cylinders 86, 96, and a support 84 carrying drill 54 and bolt setter 56 is pivoted about bracket 78 at 82 by an hydraulic cylinder 114. Drill 54 having a drill rod 128 is driven by a percussive motor 126 guided in a shell 124, the rod being centralized by a device 130, and a drill feed screw is driven by an air motor 132, Fig. 9. Device 56 comprises a shell 134, Figs. 9, 10, secured to support 84, a power wrench 144 advanced along shell 134 by a feed screw 148 rotated by a reversible fluid pressure motor 156 and a chain and sprocket 158, 154, and two vertically spaced roof bolt clamps 164a, 164b. Each of the clamps comprises a pair of fingers 166, Fig. 11, pivoted in brackets 168 secured to shell 134, and bolt gripping rollers 170 or magnets. A fluid pressure cylinder 174 closes the fingers on the bolt, the fingers being spring urged to their open position, and cylinders 174 are actuated by camoperated valves 180 on the shell. Magazine 58, Figs. 14 -16, comprises a frame 194, 196, channels 198 for supporting plates 26 of the bolts 18, Fig. 4, and a shuttle 200 for feeding the bolts up to bolt setter 56. Shuttle 200, Figs. 14-16, comprises spaced upright rods 202, and upper and lower transverse rods 204, and is moved along slide rods 208. Upper and lower movable finger carriers 210, 212 are attached to shuttle 200, upper and lower transversely stationary finger carriers 214, 218 are secured to frame members 194 and bolt retainer rods 224, 226 are adjustably secured to members 194. A number of fingers 234, Fig. 16, are pivoted on carriers 210, 212 and engage pins 238 carried by shiftable rods 240. In operation a number of bolts are stored in the magazine by inserting them from the left of Fig. 16, pivoting fingers 234 so that they are held against rods 226 by the transversely fixed fingers 246. Shuttle 200 is moved to the right, Fig. 14, by a lever 262 thus moving bolts 18 out of fingers 246 by fingers 234 to feed the bolts along the magazine, nut runner 56, Fig. 5, is pivoted by cylinder 114 to move into engagement with the magazine, fingers 166 are actuated to grip the end bolt, and runner 56 is pivoted to enter the bolt in a hole previously drilled by drill 54.
Patent GB-851703-A (GB)
Title: Welding of plastics
Inventor: NAGORSKI WITOLD
IPC: B29C65/02
Filed: 1955-10-13
Abstract: 851,703. Dielectric heating. BURNDEPT Ltd. Jan. 14, 1957 [Oct. 13, 1955], No. 29200/55. Class 39(3). [Also in Group VIII] A method of discrete operation welding of thin layers of thermo-plastic synthetic resins comprises first heating the material to be welded by conduction to just below welding temperature and after a predetermined time supplying a predetermined quantity of high frequency energy to effect welding. Electrical resistances 17 preheat one or both of the electrodes 11 and 12. The electrodes are then closed by means of the arm 13 which operates a switch 22 to switch on a delay device 18. This allows the material to reach electrode temperature before switching on a source of high frequency energy 15 for a period which is determined by the timing device 16. The temperature of the electrodes can be controlled by any known device 19 having a sensitive element 23. A number of small unit products can be welded simultaneously (see Fig. 2 not shown) by providing elongated electrodes heated by a number of heating means.
Patent GB-533402-A (GB)
Title: An improvements in or relating to chassis frames for mechanically-propelled vehicles
IPC: B60K5/12
Filed: 1939-11-03
Abstract: 533,402. Motor vehicle frames. BROWN TRACTORS, Ltd., D., and KERSEY, A. H. Nov. 3, 1939, No. 29288. [Classes 79 (iii) and 79 (iv)] The chassis frame comprises at its forward end a box member a open at the top and bottom, the upper part being closed by the engine block b and the lower part by a sump cover d. The rear part of the frame, as shown, may be integral with the part a or may be separate therefrom and is made of trough or U-section. The clutch housing j has a removable cover i and a transverse partition a<SP>2</SP>, and the change-speed gear n is housed in a chamber m having a removable cover k. The differential gear o may be housed in the chamber m but is preferably housed in a separate rear casing a' having an end cap a<SP>4</SP>.
Patent GB-639611-A (GB)
Title: Improvements in or relating to variable magnification optical systems
IPC: G02B15/14
Filed: 1947-11-03
Abstract: 639,611. Optical systems. WATSON & SONS, Ltd., W., and HOPKINS, H. H. Nov. 13, 1947, No. 29320. [Class 97 (i)] In a variable magnification optical system which comprises a body member carrying three or more coaxial lenses of which at least one of the two outer: lenses is not movable by magni. fication-varying means for moving at least one of the other lenses relative to the body member to vary the image size of an object at a fixed distance from the system, the outer lens or at least one of said outer lenses when they are both not movable by said magnification varying means is mounted for axial adjustment by focusing means, operable independently of the magnification varying means. The system shown is described in Specifications 639,610 and 639,612, and is attached to a kinematograph camera 1 as described in Specification 639,610. One of the outer lenses 13 is carried by a cell 12 which is slidable within a body tube 7 and has diametrically opposite pins 51, 52 which carry feathers 55, 56 engaged in cam slots 57, 58 in the body tube 7. When cell 12 is rotated by a knurled rim 59, the lens 13 is thus moved axially to focus the system on an object at a certain distance from the system. The rear lens 16 may also be adjustably mounted on the body tube 7.
Patent GB-958669-A (GB)
Title: Improvements in or relating to a method of manufacturing solid electrolytic capacitors
Filed: 1960-08-25
Abstract: Tantalum and niobium are anodized for use as electrolytic capacitors, in two stages (1) a liquid electrolyte at 150  DEG C., e.g. H3PO4 or H2SO4, (2) a molten mixture of salts at 200-350  DEG C., e.g. NaNO2 and NaNO3; or NaClO4, AgNO3 and KHSO4, or K3PO4. A voltage of 18-20 v. D.C. is applied.  The two anodizing stages may be reversed.  The metal may be preetched with acid.
Patent GB-333785-A (GB)
Title: Improvements in electric motors
IPC: H02K17/08
Filed: 1929-09-30
Abstract: 333,785. Spencer, M. C. Sept. 30, 1929. Alternating-current motors.-In a slow speed single-phase motor of the type having a disc rotating betwen a pair of laminated stator pole members, the two pole members are similar and each comprises two main poles and a separate intermediate pole, and the members are so arranged that the gaps between the poles of one are opposite the poles of the other. The gramophone motor illustrated has a disc rotor 18 located between two similar laminated pole members each comprising a wide pole 21 and a narrow pole 20, with a connecting portion 22. Separate intermediate poles 23 are attached by straps 24 and are provided with coils 25, 26 connected in parallel, one coil having a condenser in series with it. The faces of the poles are extended to reduce the gaps between them, and are so arranged that the gaps between the poles of one member are opposite the poles of the other.
Patent GB-155809-A (GB)
Title: Improvements in separable framings for machines, tools, and the like
IPC: F16M3/00
Filed: 1920-10-20
Abstract: 155,809. Schmidt, A. Dec. 19, 1919, [Convention date]. Machine framings.-A separable framing for drilling and other machines consists of a bent member b, Figs. 1 and 3, having two feet, which is fastened by one or more tie-rods e to a base d and strut c. The machine (shown as a chaffcutter) a is fixed on the angle-iron member b, the feet of which engage members f, d of the triangular wooden base. A wooden strut c engages the bend of the member b, the members d, and a recessed block g. The whole is held firm by tie-bolts e. In a modification, the base has a T-form d<1>, f, Fig. 6, and a U-shaped tie e<1> or a single vertical tie, connecting the member d<1> to the bend of the member d, is used.
Patent GB-803121-A (GB)
Title: Improvements in or relating to the manufacture of hydrogen peroxide
Inventor: HOPKINS HUBERT BRIAN
IPC: C01B15/023
Filed: 1955-10-18
Abstract: Hydrogen peroxide is produced by the successive catalytic hydrogenation and antoxidation of an anthraquinone sulphonic acid ester in a solvent medium.  Esters specified are anthraquinone - 1 - methyl sulphonate, and anthraquinone - 2 - methyl, ethyl, n - propyl, n - butyl, iso - butyl, n - amyl, n - hexyl, n-heptyl, and n - decyl sulphonate,.  The catalyst may be 2 per cent of palladium supported on activated alumina.  The solvent may be a 1 to 1 methyl cyclohexy acetate-xylene or a 3 to 7 methyl cyclohexyl acetate-1-methyl-naphthalene mixture.  An aqueous solution of magnesium sulphate may be present during the autoxidation step. Specifications 465,070 and 686,572 are referred to.ALSO:An anthraquinone sulphonic acid ester is used in a successive catalytic hydrogenation and autoxidation process for the production of hydrogen peroxide.  Esters specified are anthraquinone-1-methyl sulphonate, and anthraquinone-2-methyl, ethyl, n-propyl, n-butyl, isobutyl, n-amyl, n-hexyl, n-heptyl and n-decyl sulphonate.  The catalyst may be 2 per cent of palladium supported on activated alumina.  The solvent may be a 1 to 1 methyl cyclohexyl acetate-xylene or a 3 to 7 methyl cyclohexyl acetate - 1 - methylnaphthalene mixture.  An aqueous solution of magnesium sulphate may be present during the autoxidation step. Esters of anthraquinone-2-sulphonic acid and primary saturated alcohols containing 3-10 carbon atoms may be prepared by slowly introducing a concentrated aqueous solution of sodium hydroxide, in the theoretical amount, into a suspension of anthraquinone-2-sulphonyl chloride in an excess of the appropriate alcohol.  Specifications 465,070, [Group IV], and 686,572, [Group III], are referred to.
Patent GB-171684-A (GB)
Title: Improvements in process for reclaiming sludge acid in petroleum refining
IPC: C01B17/92
Filed: 1921-11-08
Abstract: 171,684. Simonson, W. H., and Mantius, O. Nov. 19, 1920, [Convention date]. Acids, concentrating.-Sulphuric acid in concentrated form, is prepared from sludge acid obtained in refining petroleum, by diluting the sludge acid to cause separation of hydrocarbons &c. and concentrating the weak acid under reduced pressure in a retort heated by a steam coil. The acid, if not concentrated to 66‹ Be., is brought to this strength for use again, by addition of fuming sulphuric acid. The sludge acid from a tank A is led into a separating tank D in which it is diluted to 28-30‹ Be. by steam or hot water admitted by a perforated pipe E. After settling, the upper layer is withdrawn by a pipe I and the weak acid by a pipe K to a tank L from which it is pumped to an evaporator N heated by a coil R, through which exhaust steam, and afterwards steam at 80-100lb. per sq. in. or other heating medium is passed. The pressure in the evaporator is reduced by a jet condenser W, until the acid boils at 270-290‹ F. After concentration, the acid is passed through a filter T to separate carbonaceous matter.
Patent GB-1083806-A (GB)
Title: Improvements in or relating to devices for checking the operation of gas or oil furnaces
IPC: F23N5/08
Filed: 1965-07-14
Abstract: 1,083,806. Photo-electric furnace control. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 14, 1965 [July 17, 1964], No. 29845/65. Heading G1A. In circuits for detecting the failure of a furnace flame a detector responsive to ultraviolet light and of the threshold ignition voltage type receives chopped radiation from the flame, the resulting modulation of the unsmoothed alternating voltage . supplying the detector provides a signal for operating indicating means. In the arrangement shown in Fig. 2 during the periods of illumination of the detector 1 provided by the chopper the voltage across resistor 8 turns on transistor 10 so reducing the voltage across capacitor 11 to below the Zener diode 11 threshold and maintaining transistor 13 turned off. During the non-illuminated periods of the detector the voltage on capacitor 11 rises above the threshold level to turn on transistor 13. An alternating output voltage is derived from transistor 13 which is rectified and smoothed by components 17 to 22 to provide a direct voltage to operate transistors 22 and 23 and their associated relays, contacts of which in the make position actuate indicator 32 showing flame present. Failure of the flame or any component results in the transistors 22 and 23 not being operated and the break contact of relay 25 actuates indicator 33 for failure. In the arrangement shown in Fig. 5 the periods of illumination provide a voltage at resistor 8 to periodically operate transistor 22 and relay 24 so indicating correct furnace functioning. Transistor 23 and relay 25 are only operated in the detector 1 short circuits since the transistor 42 is turned off by switch 46 during the period of illumination. In a further embodiment Fig. 1 (not shown) the detector is in one arm of a bridge circuit which becomes unbalanced to operate a flame failure indicator of the detector is no longer illuminated.
Patent GB-757224-A (GB)
Title: Improvements in and relating to pipe couplings
Inventor: FISHWICK WALTER EDWARD
IPC: F16L19/06
Filed: 1953-10-29
Abstract: 757,224. Pipe couplings. UNITED GAS INDUSTRIES, Ltd. Oct. 28, 1954 [Oct. 29, 1953], No. 29896/53. Class 99(1). A pipe e is coupled to a pipe j of larger external diameter by a coupling nut h enclosing two rings a, c, the former having a conical bore and formed with a groove g, and the latter being of compressible material and having an internal diameter the same as the external diameter of the pipe e and an external surface complementary to that of the conical bore, the ring c being forced into the groove g when the nut h is tightened and the base of the ring being pressed against the end face of the pipe j and preferably into a groove k. The rings a, c are preferably made of brass and lead respectively.
Patent GB-174693-A (GB)
Title: Improvements relating to the cooling of dynamo electric machines
IPC: H02K9/10
Filed: 1920-10-22
Abstract: 174,693. Selvey, W. M., and Morshead, L. R. Oct. 22, 1920. Dynamos, cooling.-A dynamo is cooled by air which circulates through a closed system comprising a refrigerator and ducts in the dynamo, the cold air delivery passages being enclosed within the warm air return passages to prevent the possibility of deposition of moisture on parts of the machine. In the form shown, air passes from a refrigerator c through a pipe d to chambers e in the dynamo, whence it is distributed by fans f on the ends of the rotor a over the ends of the stator, through the air gap and radial stator ducts, to a chamber enclosed by the casing g and to the return pipe h enclosing the cold-air pipe. Lagging may be used to control the heat transfer between the warm and cold air ducts. A fan i may be used in addition to or in place of the rotor fans f, and the air supply to the gap may be made wholly or in part through longitudinal and radial passages in the rotor. The air-cooling may be applied only to places of maximum heat generation, other cooling-means being used for other parts of the machine. Make-up air may be supplied by an independent fan l, refrigerator j and moisture-eliminator k. The Provisional Specification states that automatic means may be used for regulating the supply of makeup air according to conditions in the air circulatory system.
Patent GB-796986-A (GB)
Title: Improvements in apparatus including a centrifugal clutch, the centrifugal weights ofwhich rotate together with the driven portion of the clutch
IPC: F16D43/18
Filed: 1956-10-02
Abstract: 796,986. Friction clutches. BREVETS AERO-MECANIQUES SOC.-ANON. Oct. 2, 1956 [Oct. 15, 1955], No. 30014/56. Class 80 (2). In a centrifugal clutch where the radially moving shoes are carried on the driven member, a shaft 4 driven from a main driving-shaft 2 by a worm and wheel, is journalled in the frame 5 and fixedly carries a sleeve 10 forming the outer clutch member. A spindle 7 mounted with considerable radial play passes through the shaft 4 and carries a sleeve 13 splined thereto. Sleeve 13 is also splined at the lower end to a ring 12 with teeth 12a engaging two semicircular centrifugal weights 11 each having friction pads 15 in the form of rods fitted to longitudinal grooves in their periphery. The weights 11 are urged outwards by circular springs 14 to ensure frictional contact to take up the drive.
Patent GB-400774-A (GB)
Title: Improvements relating to the manufacture of faced building blocks and the like
IPC: B28B1/16
Filed: 1932-10-27
Abstract: Faced building-blocks are formed face downwards in collapsable bottomless moulds, the contact surfaces of which are oiled.  A moist mixture of pebbles, Dorset peas, &c., and cement, with or without sand, is spread and pressed down on a pallet in the mould, a filling of concrete is put in, the whole is allowed partly to set, the surface of the facing material is exposed and cleaned by brushing or washing, the mould is disassembled, and the block is removed and allowed to cure.  The facing material may comprise 17 parts by volume of pit sand, 42 parts of 3/8 -inch Dorset pebbles, and 7 parts of Portland cement.  The filling material may comprise 4 parts by volume of 3/8 -\ba1/4 -inch whinstone chips, 3 parts of whinstone sand and 1 1/2 parts of Portland cement.  The ingredients are mixed in a thoroughly wet state. Specifications 3573/83, [Class 87, Moulding &c.], and 400,861 are referred to.