baber/WOPTO huggingface dataset:
Patent GB-312656-A (GB)
Title: Improvements in or relating to the use of cellulose films in photography or kinematography
IPC: G03C1/81
Filed: 1928-02-17
Abstract: 312,656. Oliver, L. W., and Becker, W. T. L. Feb. 17, 1928. Colour photography; composite photography; kinematograph picture films.-A composite photograph, for example, a two-, three-, or four-colour positive comprises a thin impermeable support. e.g., celluloid, having at least two image-bearing sheets of transparent optically-homogeneous permeable cellulose adhering thereto, one in each side. Additional components on cellulose material, or other types of image pellicles (e.g. a carbon image), may be combined for a three or four colour positive. The images may be in the body of the cellulose. The positive may be mounted upon, or coated on one side with, a backing of white reflecting material. The in-- vention is also applicable to kinematograph. picture films. Specifications 271,507 and 280,252: are referred to.
Patent GB-660843-A (GB)
Title: Improvements in or relating to wire recorders
IPC: G11B25/08
Filed: 1949-02-23
Abstract: 660,843. Recording and reproducing sound. PEIRCE, C. P. Feb. 23, 1949 [March 17, 1948] No. 4984/49. Class 40 (ii). [Also in Group IX] In a wire recorder the wire carrying reels 30 and 35 are mounted on shafts 23 and 28 which may be clutched to wheels 22 or 27 respectively, the latter being engaged by a driving wheel 17 and its shaft 26. The wire is wound counterclockwise on one reel and clockwise on the other, so that the direction in which the wire travels between the reels depends on which clutch is engaged, and the slight frictional effect of the declutched wheel rotating on its shaft maintains the wire taut. The clutches are operated by electromagnets 60 and 62 acting on pivoted armatures 65, the latter also operating starting switches for an electric motor 14 driving shaft 26. The magnet box 40, through which the wire passes, is reciprocated by a link 163 in a direction parallel to the axis of the reels to wind the wire smoothly thereon. The link is operated by a cam on a shaft 120 driven through a reduction gear from the reel shafts. The amount of wire wound is indicated by markings on a tape 114 wound on reels 110 and 111 driven by reduction gearing from shaft 120.
Patent GB-869767-A (GB)
Title: Improvements relating to domestic hot water systems
Inventor: SIMPSON ERIC
IPC: F24H1/18
Filed: 1959-02-13
Abstract: 869,767. Hot-water supply systems. RANGE BOILERS Ltd. Jan. 12, 1960 [Feb. 13, 1959], No. 5032/59. Class 64(1) Two water containers are secured together, e.g. an open cold water supply tank a is secured on top of a hot-water tank b, by a central stud e made of heat insulating material, such as wood. The stud is screwed into sockets f secured to the opposed faces of the containers or it may be an interference fit in these. Heatinsulating blocks h are located between edges c, d formed on the container faces and these blocks are received in recesses in the edge of a pad g of insulating material through which the stud passes. A heat-insulating collar i may pass around and be secured to at least one of the blocks h.
Patent GB-655241-A (GB)
Title: Improvements in or relating to electromagnetic cavity resonator apparatus and circuits therefor
IPC: H01J25/74
Filed: 1944-03-17
Abstract: 655,241. Velocity-modulated tubes, circuits for ; valve generating circuits. SPERRY CORPORATION. March 17, 1944, No. 5051. Convention date, Nov. 28, 1941. [Classes 40 (v) and 40 (vi)] [Also in Groups XL (a) and XL (b)] An electron discharge device of the kind having a single resonator 9, for example the type described in Specification 528,041, is excited intermittently by pulses of current in the main electron beam, and a weak oscillation is continuously maintained therein from a separate source 99; the time-lag in building up oscillations in the resonator is thereby reduced. The asymmetrical multivibrator 68, 68<SP>1</SP> synchronized by source 76 transmits a short negative pulse to valve 79 which unblocks power valve 82 and applies low-voltage supply 88 between cathode 16 and first grid 32 of the discharge device to switch on the beam. A high-voltage supply 90 charges condenser-resistance combination 91, 92 during dead periods, and when the beam is switched on, the voltage is applied to the beam between first-grid 32 and entrance grid 40; thus supply 90 need only be of the current capacity needed to provide the charging current for combination 91, 92. The continuous weak oscillation from source 99 may cut down the build-up time in resonator 9 by a factor of five and in addition secures that oscillations in consecutive pulses are in phase or " coherent ". The pulses may be observed on oscillograph 94. The Specification as open to inspection under Sect. 91 comprises also dispensing with the auxiliary source and exciting the resonator (a) continuously, or (b) intermittently at such a rate that the oscillations persist from one pulse to the next and the average power is kept at the desired level. This subjectmatter does not appear in the Specification as accepted. Specifications 523,712, 529,771 and 531,251 also are referred to.
Patent GB-1243493-A (GB)
Title: Process for improving the dye uptake capacity of high molecular weight fibre forming polyesters
Inventor: KUTHER JURGEN
IPC: C08K5/42
Filed: 1970-02-03
Abstract: 1,243,493. Increasing the dyeability of fibre forming polyesters. GLANZSTOFF A.G. 3 Feb., 1970 [11 Feb., 1969], No. 5073/70. Heading C3R. The dyeability of certain fibre forming polyesters is increased by the addition to the polyester before, during or after polycondensation of at least 0.5% by wt. of at least one sulphonate of the formula where R 1 , R 2  and R 5  are H or C 1-4  alkyl, R 3  is H, CH 3  or if ortho to the sulphoalkoxy radical it may be cyclohexyl, R 4  is H or CH 3 , n is 3-8 and M is a metal of valency x. The polyesters are derived from terephthalic acid and alkylene glycols and/or alicyclic glycols. The metal M may be an alkali or alkaline earth metal, or zinc.
Patent GB-978693-A (GB)
Title: Automatic door closer in combination with mechanism for connecting it to a door
Inventor: MILLARD GEORGE ROBERT
IPC: E05F3/10
Filed: 1963-02-07
Abstract: 978,693. Door closers. RONAN & KUNZL Inc. Feb. 7, 1963, No. 5099/63. Heading E2M. Mechanism for connecting the piston rod 6 of a spring door closer and hydraulic check device to a swing door comprises a pair of mounting plates 8, 9 secured together in spaced relation, a shaft 5 journalled in the plates and adapted to be engaged in a suitable socket in the door, crank arms 24 extending in opposite directions from the shaft and carrying crank pins 29, and a cam plate 11 slidable longitudinally between the mounting plates and coupled to the piston rod 6, the cam plate having a central opening 22 the edges of which co-operate with the crank pins 29 and have hold-open peaks 35, 39. The mechanism is adapted to be mounted in the lintel of the doorframe. The cam plate carries rollers 13, 14 guided in grooves 19, 20 in the mounting plates 8, 9, the rollers 13 at one end of the plate being a relatively close fit in the grooves whilst the rollers 14 at the other end are relatively loose. When the door is closed the crank pins 29 seat in recesses 30 in the cam plate 11, and when a definite opening force is applied to the door the torque transferred to the cam plate causes the latter to swing sufficiently for one of the crank pins to leave its recess and move along the edge 31. The peaks 32 hold the door closed against wind pressure; in the fully open position the pins 29 are held by the peaks 35 and 39 respectively. If it is desired to prevent the door from being held in either fully open position the appropriate one of the two pawls 41 is turned by means of its regulating screw 42 to block the movement of the crank arms 24 so that the pin 29 does not reach the peak 39. To prevent opening movement in either direction a blocking screw can be inserted in one of two tapped holes 44 in the cam plate to abut the crank arms.
Patent GB-699258-A (GB)
Title: Improvements relating to bucket grabs
IPC: E02F3/413
Filed: 1951-03-02
Abstract: 699,258. Grab buckets. CAULFIELD, W. J.. and WESTWOOD & CO.. Ltd., J. Feb. 29, 1952. [March 2, 1951] No. 5160/51. Class 78 (iv). In a grab in which the bucket sections when closed are locked bv a hook 6 on the lower purchase block 7 engaging a pin 1 on the crossbeam, the hook 6 is counterweighted at one end 9 to move to unlocking position and is urged by a spring 10 on the pivot 11 of the hook to the locking position, the force of the spring being greater than the force of the counterweight. The effect of the spring 10 is removed to release the buckets by a pawl 16 mounted on the block 7. One end 22 of the pawl lies in the path of the inner guide 19 of the beam so that. on raising the block, the pawl is rotated by striking the guide to lift the end 14 of the spring from the abutment 15 on the hook and allows the hook to disengage from the pin 1 under the action of the counterweight when lowered onto the material.
Patent GB-346098-A (GB)
Title: Improvements in poultry rearing devices
IPC: A01K31/18
Filed: 1930-02-17
Abstract: 346,098. Rearing-appliances. MILNE, T., Kellas Poultry Farm, Kingennie, Angus. Feb. 17, 1930, No. 5192. [Class 5 (ii).] A brooder comprises a living chamber B situated above a lamp chamber A and provided with an inverted U-shaped radiating pipe E opening at each end into the lamp chamber, a lamp being arranged below one end of the pipe. Air is admitted to the chamber B through a flat pipe F opening to the outer air and extending along the roof of the lamp-chamber until it is bent upwards and opens into the living chamber immediately below the pipe E. The roof of the lamp chamber is iron-lined. A narrow slit K to act as an air outlet is made just under the roof of the chamber B and auxiliary outlets M are formed in the roof, these being opened or closed by movement of the roof. The chamber B has a curtain-covered doorway J opening into a run C having a wire netting floor P below which is a removable tray D for droppings. Troughs R, R1 are situated on the sides and the front of the run.
Patent GB-658333-A (GB)
Title: Clasp
IPC: E05B65/52
Filed: 1949-02-25
Abstract: 658,333. Hasp fastenings. VINCENT, E. Feb. 25, 1949, No. 5225. Convention date, Nov. 18, 1948. [Class 44] A hasp fastening for trunks &c. comprises a box-like casing 3 pivoted to a plate 1 secured to one part, and having an opening 25 at the bottom and side of one end so that it may engage over a dice-shaped member 10 secured to the other part and provided with a spring catch 16 which engages a shoulder 27 inside the end wall of the casing 3 when the latter is turned. As shown, the casing is formed in two parts fitting one inside the other, and carries key lock mechanism comprising a spring bolt 32 which in locked position engages a stop 9 on the plate 1.
Patent GB-370121-A (GB)
Title: Improvements in and relating to the manufacture of lithopone
IPC: C09C1/06
Filed: 1931-02-19
Abstract: Calcined lithopone is treated with phosphoric acid, or with substances which yield free phosphoric acid in solution, so as to neutralize the alkalinity and any harmful excess of zinc oxide, and to increase the fastness to light even in the presence of relatively large amounts of chlorides.  The lithopone may also be treated with phosphoric acid before calcination.  In examples, the calcined lithopone is suspended in water, treated with a dilute solution of phosphoric acid, filtered, and dried.  Sodium di-hydrogen phosphate may be used, also ortho-, meta-, and pyro-phosphoric acids and their acid salts.
Patent GB-819123-A (GB)
Title: Improvements relating to paper friction lining materials
IPC: F16D69/02
Filed: 1958-02-19
Abstract: 819,123. Paper for friction linings. BORGWARNER CORPORATION. Feb. 19, 1958 [March 15, 1957], No. 5425/58. Drawings to Specification. Class 96. A resilient, porous, friction lining material, e.g. for clutches, brakes, &c., which may be used in oil &c., is made of paper having from 30 to 70 per cent of cellulosic fibres and/or synthetic organic filaments from 5 to 35 per cent of asbestos fibres, and from 10 to 50 per cent of an inorganic filler of hardness of at least 3.5 mols. A binder, e.g. 1 to 10 per cent of a chlorinated or a synthetic rubber, e.g. neoprene, polyacrylic resin or 10 to 50 per cent of a thermosetting resin, e.g. nylon, a polymethacrylate, a polymethylmethacrylate, a polyvinyl acetate, a polyurethane, a melamineformaldehyde, a silicone, or a phenolic resin is also included. The material may have an airvolume of at least 70 per cent. The fibres used may be alpha-cellulose, sulphite cellulose, sulphate cellulose, cotton, linen, rag, &c., and the organic filaments should be able to withstand over 200‹ F., e.g. filaments of viscose, condensates of dimethyl terephthalate with ethylene glycol, dinitrile, polyamides made by polymerizing a hexamethylene diamine salt of adipic acid, saponified and stabilized cellulose acetate, polytetrafluoroethylene, or copolymers of vinyl chloride and acrylonitrile. The inorganic filler may be diatomaceous earth, alumina, aluminium silicate, quartz, or glass filaments. A surface size, e.g. methacrylatechromic chloride, methyl silicone, or other alkyl silicone resin, or vinyl silane may be applied.
Patent GB-199429-A (GB)
Title: Improvements in cases for the transport and storage of cartridges and the like
IPC: F42B39/00
Filed: 1922-02-24
Abstract: 199,429. Whitworth, E. Feb. 24, 1922. Retaining-devices in receptacle neck above closure; lids fitted with give-way safety devices. -A ring is arranged in the end of a receptacle in such a manner that it can be rotated to one position to secure the end plate or lid firmly during transport or to a second position to release the firm hold and leave the end plate or lid secured by a weak connection capable of yielding to accidental internal pressure during storage; in the case of a lid, the ring, in its second position, may free the lid completely, or the ring is adapted to be rotated to a third position to free the lid completely to permit its removal. As shown in Figs. 9 and 10, a lid c, which is located over a packing ring g in the mouth piece b of a receptacle A, and is prevented from rotating by a pin d, is secured in place by means of a ring e, which screws into the mouth piece b and is provided with internal lugs e' adapted to engage above ears c<1> on the edge of the lid, or over ears j<1> on a thin ring j secured to the lid by weak rivets, or to clear both lugs c<1> and j<1>. In the first position, the lid is firmly secured; in the second position, the lid is held by the weak rivets; and in the third position, the lid is free to be removed. The lid may be provided with handles c<3> and an inspection orifice c<4> closed by a screw plug f. Drain holes b<3>, b<4> are made in the mouth piece b. As shown in Fig. 17, an end plate m of a receptacle A is secured permanently by a shear pin n, and is firmly secured during transport by a ring p, which can be unscrewed afterwards but is prevented from being completely removed by a shoulder plate q. The end plate m may be locked against rotation by a set screw r: A key may be provided for operating these adjustable rings. Specification 24930/98 is referred to.
Patent GB-106262-A (GB)
Title: Improvements in Portable Gramophone Instruments.
Inventor: NEGAL MORRIS
IPC: G11B25/04
Filed: 1917-04-19
Abstract: 106,262. Nagal, M. April 19, 1917. Addition to 103,779. Drawings to Specification. Cases.-The lower part of the case of the portable gramophone described in the parent Specification is fitted with a sliding drawer or tray for carrying records. The drawer or tray may be arranged to draw out at the front, back, or sides of the case.
Patent GB-753866-A (GB)
Title: Improvements in auxiliary hydraulic gear mechanism as incorporated in mining machines
Inventor: ANDERSON ALEXANDER
IPC: E21C31/12
Filed: 1954-02-25
Abstract: 753,866. Mineral-mining apparatus. ANDERSON, BOYES & CO., Ltd. Jan. 6, 1955 [Feb. 25, 1954], No. 5542/54. Class 68(1) In a mineral-mining machine uncontrolled over-run of an implement 25, e.g., a jib or winch, driven by a reversible, hydraulically-artuated motor 23, 24 is prevented, when load is removed from the implement, by an hydraulic interlocking device 22 inserted in the supply and exhaust pipe lines 8-11 between a reversing valve 21. and Ehe motor 23, 24. The device automatically closes the exhaust line on loss of pressure in the supply line, and comprises a, chest 1. spring-biased valves 2, 3, valve-opening plungers 6, 7 and passage ways 12, 13 interconnecting the chambers containing the valves and plungers. When liquid under pressure is supplied to the chest 1 by the pipe 8 it acts directly on the valve 2 and indirectly on the valve 3 through the passage 13 and plunger 7 to cause them to lift off the valve seats and permit flow of liquid through the supply and exhaust lines. The reverse actuation occurs when liquid under pressure is supplied to the chest 1 by pipe 9. Loss of pressure in the supply pipe 8, 10 results in the valve 3 closing the exhaust line 11, 9 and vice versa.
Patent GB-373272-A (GB)
Title: An improved portable scoring appliance for golf or other games
IPC: A63B71/06
Filed: 1931-02-23
Abstract: 373,272. Scoring golf &c. McLEAN, L., 33, Corstorphine Bank Drive, Corstorphine, Edinburgh. Feb. 23, 1931, No. 5556. [Class 132 (ii).] A scoring device for golf and other games comprises a watch-shaped casing 8 enclosing an annular series of stationary dials 15 and associated pointers 16, 17, mechanism for driving the pointers from a centrally mounted pinion 21, and means for successively engaging the central pinion with each pointer. The eighteen dials are arranged in nine concentric pairs, the pointers of each pair being each connected to one of a pair of coaxial pinions 18, each provided with a zeroizing spring and retaining pawl 56. The pointer pinions 18 are adapted for selective engagement with the central pinion 21 by an idler 26 that is carried by an arm 25 projecting from a hub, slidable and rotatable relatively to a central spindle 19. The arm 25 is rotated, successively to engage the pinions 18 with the pinion 26, by means of a lever 27, the outer end of which projects through the casing while the inner end is adapted for co-operation with a ratchet wheel 23 rigid with the arm. The arm 25 is adjustable axially of the spindle 19, to select the pinion 18 of a pair, by means of cams 29 carried by an externally operable shaft 30. The central pinion is rotatable for scoring purposes by depression of a pushbutton 32 connected by a rod 31 to a ratchet wheel rigid with the pinion. Depression of the pushbutton 32 serves also, through pawl 34 and ratchet wheel 33, to advance a pointer 14 around a dial 13 to indicate the total score. The pointers are simultaneously zeroized by a sliding movement of a lug 38 projecting from an annular member (not shown) that is rotatable through a small angle within the casing and is provided with slots to receive the tails of the retaining pawls 56 of the pointer pinions and to engage a lever 42 connected to the retaining pawl 40 for the total pointer.
Patent GB-317867-A (GB)
Title: Improvements in or relating to the production of oxygenated organic compounds
IPC: C07C51/12
Filed: 1928-02-22
Abstract: 317,867. British Celanese, Ltd., and Oxley, H. F. Feb. 22, 1928. Acetic and other fatty acids and their esters.- In the process of Specification 283,989 for the production of acetic and other fatty acids and their esters by interaction of carbon monoxide with alcohols, ethers and esters, the inorganic acids employed as catalysts are activated by the incorporation of copper or a copper compound such as the phosphate or formate. The reaction is preferably effected in vessels made of or lined with copper, gold, platinum or other resistant material, e.g. graphite. According to the examples, methyl alcohol vapour and carbon monoxide, with or without water vapour, are passed under pressure through a heated gold-lined vessel charged with pyrophosphoric acid containing a little metallic copper or copper formate; the product comprises acetic acid and methyl acetate. The Provisional Specification states that the invention is applicable broadly to all catalytic processes for the synthesis of oxygenated organic compounds from alcohols, whether in the free or combined state, and carbon monoxide.
Patent GB-608423-A (GB)
Title: Automatic voltage control of electric converters
IPC: H02M7/06
Filed: 1946-02-22
Abstract: 608,423. Automatic control systems for electricity supply; converting. SIEMENS BROS. & CO., Ltd., and DOUBLE, H. S. Fob. 22, 1946, No. 5636. [Classes 38 (ii) and 38 (iv)] Voltage.-In a rectifying arrangement in which the output voltage is regulated by a saturable choke in its input circuit, the choke has a currentcontrolled D.C. winding carrying all or part of the output current, and a voltage-controlled winding energized by the output of a magnetic amplifier, the input or control current of which is derived from a fourterminal network comprising at least one non-linear resistance and connected across the load circuit (which may comprise a storage battery). The arrangement is particularly adapted to produce a constant output voltage with a droop near maximum current output. The A.C. windings I of the chokes CHA, CHB and CHC are connected in series with the star-connected primary windings of the 3-phase transformer TR, of which the secondary windings supply the D.C. load terminals TL through rectifier MR. Each choke has D.C. controlling windings II and III assisting each other and a biassing winding IV opposing the others. Windings II, adjustable by diverter YB, are in series with the load circuit and with the smoothing chokes CHS and CHSS and condenser Q. Windings IV, adjustable by series resistance YF, are connected across the rectifier output terminals. The windings III are energized by the magnetic amplifying arrangement made up of transformer TRA, auxiliary rectifier AR and chokes CHE and CHF, each with a winding I in the A.C. supply to rectifier AR, a winding in the D.C. output circuit of rectifier AR and a D.C. controlling winding.; the latter are connected to two terminals of bridge VSN having its other two terminals connected to the load terminals TL. The bridge arms include non- linear impedances BRX, BRY and adjustable resistances. Terminals TL may be connected to a secondary battery.
Patent GB-570216-A (GB)
Title: Improvement in and relating to esters of chloromaleic acid
IPC: C08F36/04
Filed: 1943-04-08
Abstract: Aralkyl esters of monochlormaleic acid are prepared by esterification of chlormaleic acid by treating the acid or its anhydride with an aralkyl alcohol, for example, benzyl or b -phenethyl alcohol, preferably under reflux and with an acid catalyst.  Other esters specified are the g -phenylpropyl, cinnamyl, a -naphthylmethyl, p-tolylethyl, and biphenylethyl diesters.  Di-esters containing only one aralkyl radical are included.  The esters are copolymerized with butadienes, such as butadiene-1,3 or its 2-chlor- or 2-cyano-derivative, pentadienes, such as isoprene, hexadienes, such as 2-methylpentadiene-1,3 or 2,3-dimethylbutadiene-1,3, styrenes, such as styrene or 2-chlorstyrene, vinyl chloride or bromide, acrylates or alkacrylates, such as methyl acrylate or methacrylate. Ratios of butadiene to ester of from 20 : 80 to 90 : 10 may be used. The emulsion copolymers can be milled with plasticizers and used as moulding and coating compositions.  In examples: (1) chlormaleic acid and benzyl alcohol are refluxed with benzene and sulphuric acid using a water trap on the condenser to produce dibenzyl chlormaleate; (2) chlormaleic anhydride and b -phenethyl alcohol similarly give the di-b -phenethyl ester; (3) butadiene-1,3 and the dibenzyl ester in the ratio of 60 : 40 by weight are copolymerized by shaking at 38 DEG C. in the presence of a solution containing buffer, wetting agents, carbon tetrachloride, potassium cyanide, acetaldehyde, and sodium perborate to yield a rubber; (4) the di-b -phenethyl ester is copolymerized similarly with butadiene.