baber/WOPTO huggingface dataset:
Patent GB-497736-A (GB)
Title: Polyvinyl acetal resin compositions
IPC: C08K5/10
Filed: 1937-06-23
Abstract: Water - insoluble polyvinyl acetal resins acetalized between 35 and 94 per cent and containing hydroxyl groups, but substantially no ester groups are compounded with a water-insoluble ester plasticizer in which the resin is insoluble at ordinary temperatures by mixing the resin and plasticizer substantially in the absence of solvents for the resin but in the presence of a quantity of water sufficient to wet and swell the resin.  The resin may be prepared from a polyvinyl compound of molecular weight above 10,000, preferably above 25,000; the aldehyde used is preferably aliphatic with two to six carbon atoms, saturated and straight-chained, the most suitable being butyraldehyde, propionaldehyde, and valeraldehyde.  The water may be added before, simultaneously with, or after the introduction of the plasticizer; or the water-wet resin prepared by precipitation from the solution in which it was formed may be used directly; the quantity of water may be 20 to 200 per cent by weight of the resin. The mixture may be mechanically worked to homogenize it, the water being eliminated by heating during or after this working.  Specified plasticizers are phthalates of glycols, glycol ethers, and lower alcohols, and the corresponding tartrates and succinates, e.g. diethyl phthalate, di-n-butyl phthalate, di-n-butyl tartrate, bis-b -dichlorethyl phthalate, bis-b -n-butoxyethyl phthalate, and those used in Specification 497,737.  The Specification includes examples. The compositions may be used as interlayers in safety glass.
Patent GB-1087092-A (GB)
Title: A method and machine for forming helically fluted rod-like articles
Inventor: MOONEY ALAN MANSON
IPC: B21H3/00
Filed: 1963-05-02
Abstract: 1,087,092. Rolling helical grooves. A. GASCOIGNE. April 22, 1964 [May 2, 1963], No. 17431/63. Heading B3M. A method of forming a helically fluted article such as a cutting tool from a blank rod comprises feeding the blank lengthwise through a flute forming die ring, the ring being built up of separate elements each of bar form with its length lying in a plane parallel to the axis of the blank and oblique thereto, the cross-sections of the bars being such that they together form and maintain the die ring during lengthwise advancement of the bars, and advancing the bars lengthwise in pressure contact with the blank to feed and rotate the blank and form flutes in the blank. A machine for carrying out the method comprises bushes 1, 2 which support and guide the blanks 3, a feed hopper 4, a pusher 5, 6 and an induction heating coil 8, which heats the part of the blank on which the cutting edges are to be formed to forging temperature. The shank forming part of the blank is in the bush 1 and remains cool. The forming die is made up of four forming bars 18, 19 (only three are shown), each mounted on a sliding carrier 12. The carriers are slidable along lines which are all at the same angle to the axis and which is the desired helix angle for the flutes. The carriers are driven by a motor 14 through a chain and gears. With the carriers withdrawn the heated blank is advanced through the bush 1 to the bush 2, the carriers advance, grip the bar simultaneously and as they advance further deform the blank and at the same time advance and rotate the blank. The return stroke of the carriers is idle.
Patent GB-439298-A (GB)
Title: Improvements in helicopter flying machines
IPC: B64C27/10
Filed: 1934-06-13
Abstract: 439,298. Helicopters. PORTER, J. R., 16, Whatley Road, Clifton, Bristol. June 13, 1934, No. 17451. [Class 4] A helicopter includes a power-driven lifting airscrew b and a second lifting-propeller which rotates oppositely to the screw b and comprises radial arms d which carry circular rings e of aerofoil cross-section set at an angle to the vertical axis of the machine. As shown, flexible rings e are connected by a ring d1. The rings may be connected together by a cable m passing through guides n. The rings may have limited movement, between stops, about horizontal axes. An engine a drives an airscrew b through sun-and-planet gearing, the outer annulus of which carries the arms d. A flanged plate f carrying the planet wheels is held to the engine frame by a band brake g. The engine is supported on a column h secured to the cabin and forming a guide for a strut i passing through a pneumatic buffer j. Landing- wheels are carried on struts l connected to the buffer i by rubber cords k. The weight of the pilot is compensated by a weight O which is adjustable along a rod to tilt the machine for effecting horizontal movement. Specification 399,886 is referred to.
Patent GB-1341270-A (GB)
Title: Boiling water nuclear reactor core
IPC: G21C1/00
Filed: 1971-05-27
Abstract: 1341270 Reactors ASEA ATOM AB 27 May 1971 [18 June 1970] 17461/71 Heading G6C A boiling water nuclear reactor core is formed of elongate, mutually parallel fuel assemblies 3 each comprising a plurality of parallel fuel rods 13 arranged in a shroud tube 15 in a regular lattice and a plurality of tubes 14 forming a regular array, arranged instead of one of more fuel rods in the lattice and having water flowing through them. At least in a central region of the core each fuel assembly 3 is surrounded by a gap 19 containing water. The gaps 19 have such width that the water in them and in the tubes 14 is substantially uniformly distributed over the cross-section of the core. One form of control rod comprises a plurality of parallel control rod pins secured at their lower ends to a lattice-like attachment plate supported by an operating rod from a drive means. Some of the tubes 14, e.g. about half, form guide tubes for the control rod pins. Alternatively where there is a wide gap 19 between adjacent fuel assemblies 3, as in Fig. 6, a control rod having cruciform cross-section may be used in the gaps between four adjacent fuel assemblies. To cool the fuel rods 13, most of the circulating coolant is led up through spaces between adjacent fuel rods, while some of the coolant is led up through the tubes 14. At least each pin guide tube is provided at the bottom with a throttled inlet to give a flow of coolant through the tube which is independent of the extent to which the control rod is inserted into the core. In Fig. 6, each lattice position in each of the two rows of such positions nearest the gaps 19 is occupied by a fuel rod 13 so that a frame of double rows of the fuel rods 13 is formed. In the region surrounded by this frame, alternate positions in alternate rows are occupied by tubes 14. The left-hand side of Fig. 6 shows an arrangement in which the four tubes 14 nearest the four corners of the fuel assembly have been replaced by fuel rods 13 in order to compensate for the corner effect caused by the wide water gaps 19.
Patent GB-169522-A (GB)
Title: Improvements in means for operating lifts
IPC: B66B1/48
Filed: 1920-06-28
Abstract: 169,522. Steyer, L. June 28, 1920. Lift cages, locking and unlocking and operating. -In electrically-actuated lifts, the cage is stopped at any floor by the attendant by projecting a finger into position to engage mechanism in the well for controlling the motor switch. At each floor two shafts carrying a hand-wheel 12 and spur-wheel 16 are mounted in the shaft and connected by chain gearing to each other and to the shafts of adjacent floors. The upper shaft at the top floor is connected by bevel-gearing to the switch 8 controlling the motor. The lift is started by turning one of the hand-wheels 12, and is stopped at any floor by projecting a finger 33 pivoted on the cage into position to engage the spur-wheels 16 as the particular floor is approached. The finger 33 is normally held in inoperative position by a spring and is projected by depressing a pedal 36.
Patent GB-609722-A (GB)
Title: Improvements in or relating to the preparation of esters of beta-benzyl mercaptovaline, and derivatives and intermediates thereof
Filed: 1945-07-10
Abstract: Esters of alpha-nitro-beta-benzyl mercapto isovaleric acid, which may be produced by reacting an ester of alpha-nitro-dimethyl acrylic acid with benzyl mercaptan, are reduced in acid solution at a temperature not exceeding 50 DEG  C. to yield the corresponding esters of betabenzyl mercaptovaline.  The free acid, betabenzyl mercaptovaline, is prepared from its esters by hydrolysis.  The reduction is preferably effected by treating the compounds with a metal and acid in a solvent, e.g. with tin and dry hydrogen chloride in anhydrous methanol.  Zinc and acids such as acetic acid or other solvents such as glacial acetic acid may also be used.  In examples: (1) benzyl mercaptan is slowly added to ethyl alpha-nitrodimethyl acrylate so as to maintain the temperature at about 50 DEG  C.  The crude product, ethyl alpha-nitro-beta-benzyl mercapto isovalerate is then reduced with tin and dry HCl in methanol at a temperature not exceeding 50 DEG  C.  The complex tin salt is removed and dissolved in methanol, sodium bicarbonate being then added to a pH of 6 to 7.  This solution is treated with hydrogen sulphide to remove all the tin and the residue after evaporating the filtrate is dissolved in methanol to remove sodium chloride.  The filtrate is evaporated to obtain beta-benzyl-mercaptovaline ethyl ester hydrochloride; (2) the product of example (1) is refluxed with hydrochloric acid and beta-benzyl mercaptovaline is precipitated by adjusting the solution to a pH of 6 with sodium hydroxide.
Patent GB-719737-A (GB)
Title: Improvements relating to the grids of lead acid electric accumulators
Inventor: BARAK MONTEFIORE
IPC: H01M4/68
Filed: 1952-07-11
Abstract: An accumulator grid is made of an alloy containing 6 per cent to 12 per cent. of antimony, 0.3 per cent. to 3 per cent. of tin, the remainder being lead.  In an example the alloy contains 9 per cent. of antimony, 2.5 per cent. of tin the remainder being lead.
Patent GB-401408-A (GB)
Title: Improvements in weighing and counting mechanism
IPC: G01G19/42
Filed: 1932-06-22
Abstract: 401,408. Weighing-apparatus. AVERY, Ltd., W. & T., TIMSON, W., and JONES, W., Soho Foundry, Birmingham. June 22, 1932, No. 17594. [Class 143.] Counting by weighing.-A weighing-machine for use in counting articles in bulk is provided with a compound lever system from two of the levers of which system ratio pans are suspended, one of the levers being connected to a spring resistant and the other to an indicator whereby the parts of the lever system are normally maintained in balanced position and indicated to be in that position. The articles to be counted are placed on a platform supported by the usual levers and draw rod 1 from a lever 4 controlled by a spring resistant 20. A ratio pan 16 is suspended from the lever 4 and a second ratio pan 17 from a lever 14 connected by shackles 10, 11 to the lever 4, the arrangement being that the leverage ratio between the pan 17, the pan 16 and the platform is 99 : 9 : 1. A pointer 18 carried by the lever 14 co-operates with a fixed index 19 to indicate when the mechanism is in balanced condition.
Patent GB-145547-A (GB)
Title: Improvements in and connected with means for spraying or throwing mortar or the likeon to walls and other parts of buildings
IPC: E04F21/12
Filed: 1920-06-29
Abstract: 145,547. Moser, T. July 16, 1918, [Convention date]. Direct air, gas, and steam pressure apparatus, non-automatic.-Mortar or the like is sprayed on to buildings &c. by an apparatus consisting of a receptacle a, a feed-screw d with a tapering groove and an axial pipe h through which highpressure steam, compressed air or gas passes to force the mortar &c. into the delivery pipe i. The screw may be rotated by worm-gearing g, as shown. The mortar &c. may be mixed in the receptacle a, water being supplied by a pipe b.
Patent GB-764327-A (GB)
Title: Compounds of the cyclopentanopolyhydrophenanthrene series and processes for preparing the same
IPC: C07J75/00
Filed: 1952-03-03
Abstract: The invention comprises 3-acetoxy-11-keto-bisnorcholanic acid and the methyl ester thereof, and the preparation of the acid by treating 3 - acetoxy - 11 - keto - D 22 - ergostene with ozone, and oxidizing the resulting ozonide with chromic acid, and when the methyl ester is required, the acid is esterified with diazomethane.  One detailed example is given.
Patent GB-1454732-A (GB)
Title: Device provided with a gas and/or vapour discharge tube
IPC: H05B41/16
Filed: 1975-04-29
Abstract: 1454732 Supply systems for gas discharge lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 April 1975 [2 May 1974] 17746/75 Heading H2H Apparatus comprising a gas discharge tube is provided with a heating element which extends substantially throughout the length of the tube, the element being controlled so as to determine the operating temperature of the tube whereby the use of a ballast device is unnecessary. A sodium vapour discharge tube 10 is provided with electrodes 9, 12 and a transparent electrically conducting layer 15 extending along the length of the tube, electrical connection to the layer 15 being made by sleeves 22, 23. The tube 10 is supplied from an A.C. source 1, 2 by way of a bridge rectifier 3 and a main circuit which includes a diode 6, the operating coil 20 of a reedswitch 16, a diode 8 and the electrodes 9, 12, the circuit being connected across the D.C. terminals of the bridge 3. A second auxiliary circuit is also connected across the bridge 3 and includes the collector-emitter path of a transistor 17, sleeve 22, layer 15 and sleeve 23. After the tube 10 has been ignited by the application of a suitable potential to terminals 24, 25 and a small current flows in the main circuit, such current in the coil 20 being insufficient to cause operation of the reed relay 16, the movable centre contact thereof remains in the 'down' position, as shown, whereby transistor 17 is rendered conductive to enable current to flow through the layer 15 to heat the tube 10. Should the tube become overheated the current in the main circuit will increase so causing operation of the reed switch 16 to the 'up' position. The transistor 17 becomes non-conductive to prevent current flow in the layer 15 whereupon the tube 10 cools down and the tube temperature is maintained at a desired operating value by the ON-OFF action of the layer 15. With the reed switch 16 in the 'up' position a circuit exists from the point 5 to the diode 8 by way of the centre and upper contacts of the switch 16 and the portion of the coil 20 selected by the slider 21. This circuit reduces the hysteresis of the reed switch 16. In a second embodiment the heating of the tube 10 is effected by a helical coil wound around the tube.
Patent GB-129541-A (GB)
Title: Improvements in Projectiles.
Inventor: NEWTON JOHN MORRIS
IPC: F42B10/14
Filed: 1918-10-31
Abstract: 129,541. Newton, J. M. Oct. 31, 1918. Addition to 16234/15. Projectiles. - Relates to projectiles provided with hinged hooks D, Fig. 1, of segmental shape adapted to open out during flight for destroying wire entanglements as described in the parent Specification and consists in detail improvements. According to the invention, (1) the hooks are made from a solid cylinder by turning the outside and boring the inside to the shape shown in Fig. 9, then sawing longitudinally in radial or diametral planes, and finally machining the sawn faces and rounding off the corners, the corners of the corresponding slots in the 'body A of the projectile also being rounded off ; (2) the gap in front of the hooks is closed by a copper or other metal band M formed with knife-edges m where it bears against the hooks; (3) a shearing pin N is passed through the striker fork F<2> and into the inner faces of the hooks in order to hold them folded until they are forced open at the predetermined time during flight; (4) the casing H enclosing the hooks is made in two half cylinders with corrugations h<2>, Fig. 26, to fit corresponding grooves around the body of the projectile, and is secured in place by wires h<3> tied round the corrugations h<2> which are then filled with soft metal such as white bearing metal, the corrugations being roughened if necessary to afford a strong grip to the soft metal; and (5) the slots in the body A of the projectile for receiving the hooks D are stopped well in advance of the driving-band, leaving a solid strong belt a<1> of the body in front of the driving-band.
Patent GB-811108-A (GB)
Title: Improvements in or relating to belting hose and like flexible members
IPC: F16G1/04
Filed: 1954-06-17
Abstract: 811,108. Flexible hoses. B.T.R. INDUSTRIES Ltd., and ARNETT, M. June 16, 1955 [June 17, 1954], No. 17810/54. Class 99(2). [Also in Groups VIII and XXIV]. A flexible hose consists of inner and outer layers 21, 22 of elastomer bonded to a ribbed fabric comprising strength-giving warps 12 with little crimp in combination with warps 13 having substantial crimp which act as cover threads for the wefts 15 and provide the ribs which lie round the hose, the fabric itself being covered with elastomer to at least fill the grooves between the ribs. The fabric may be wholly or in part of textile material commonly used for hose reinforcement or may be of rayon, polyethylene terephthalate, nylon, glass, or wire, e.g. the strength-giving warps may be of staple nylon and the remaining warps and the wefts may be of cotton. The elastomer may be natural or synthetic rubber or polyvinyl chloride.
Patent GB-793431-A (GB)
Title: Device for spreading swaths by means of rake wheels
IPC: A01D78/00
Filed: 1954-06-18
Abstract: 793,431. Hay-making. VAN DER LELY N.V., C. June 18, 1954 [July 6, 1953], No. 17916/54. Class 6(3). A swath turner provided with two rake wheels 9, 10 having axes diverging in the forward direction is characterized in that at a distance transverse to the direction of travel a second pair of rake wheels 9A, 10A is provided. As shown, the rake wheels 9, 10, 9A, 10A are mounted on cranked axles 13, 14 and 13A, 14A respectively which are rotatably mounted by means of pins 8, 8A on arms 7, 7A provided with shafts 6, 6A which are rotatably mounted in a tubular member 5 fixed to a tractor frame 2 by means of a connecting member 3. Segments 17, 17A are provided, by means of which the axles may be secured in pre-determined positions. Alternatively the axles may be connected by a spring 19 to a member 18 attached to the segment 17 so that the wheels may yield in a lateral direction. Alternatively a compression spring may be mounted between the axles 13, 14 or 13A and 14A. In a modification the rake wheels are inclined so that the lowermost points are closer together than the uppermost points. In a further modification a running wheel or a further rake wheel may be mounted between each pair of rake wheels or alternatively two rake wheels may be mounted between the wheels 9, 10, or 9A, 10A the wheels being less obliquely disposed and slightly to the rear of the wheels 9, 10, or 9A, 10A. Two pairs of wheels may be mounted on a machine which comprises two frames each carrying one or more rake wheels and joined by a bow-shaped member to which is attached a forwardly extending cam for attachment to a tractor, one pair of rake wheels are pivotally attached on the rear of each frame. Specifications 793,432, 793,433, 793,434 and 793,435 are referred to.
Patent GB-996138-A (GB)
Title: Improvements relating to mud flaps for vehicles
Inventor: JONES HUGH
IPC: B62D25/18
Filed: 1963-05-07
Abstract: 996,138. Mud guard flaps. KUMFICAR (SALES) Ltd. April 30, 1964 [May 7, 1963], No. 17958/63. Heading B7J. A one-piece mudguard flap 1 is provided with a reinforcing rib 2 and with holes 3 which need not be of circular form but which increase in cross-section to form widely tapering holes such as 4. A series of alternative fixing holes 5 are provided, and if necessary the flap may be shortened by removing a portion above a selected pair of holes 5 by severing it along a prepared line of weakness. In a modification the holes 6 taper throughout their depth, and the flaps may carry reflectors.
Patent GB-120897-A (GB)
Title: Improvements in or relating to Magneto-electric Ignition Machines.
IPC: H02K21/32
Filed: 1918-11-04
Abstract: 120,897. Scintilla [Firm of]. Nov. 2, 1917, [Convention date]. Magneto electric machines; pole-pieces ; field magnets, short-circuited coils on poles of. - The magnet poles of ignition magnetos are surrounded bv short-circuited coils for the purpose of increasing the secondary voltage; the pole-pieces p are preferably laminated. Figs. 2 and 5 show possible arrangements of the short-circuited coils w. The coils may be utilized for fixing the magnets and the bed-plates. The pole-pieces themselves may be constructed of iron rings acting as short-circuited coils mounted on the ends of the magnet m, Fig. 8. The polepieces may be composed of H-shaped plates mounted with their cross-pieces in slots in the permanent magnet, Fig. 12. The magnets may be stationary or rotating.
Patent GB-836745-A (GB)
Title: Multiple spark gap switch
IPC: H05H1/24
Filed: 1958-06-06
Abstract: 836,745. Spark apparatus. UNITED STATES ATOMIC ENERGY COMMISSION. June 6, 1958 [Oct. 2, 1957], No. 18104/58. Class 39(1). A high voltage, high current multiple spark gap switch comprises a metal electrode 13 having six convex protuberances 15, 17, 19, 21 &c. arranged in a circle with a trigger probe 43 extending through each protuberance and insulated therefrom by a dielectric sleeve 26. An insulating disc 27 supports six electrodes 29, 31, 33, 35 &c. opposite the protuberances. The assembly is completed by a metal sleeve 11 and a dielectric sleeve 12. The electrodes are made of highly conductive material such as copper or silver. A stout wire 41 is connected to electrode 13, and individual connecting wires are provided for the electrodes 29, 31, 33, 35 &c. The switch is connected in a circuit, Fig. 3 (not shown), for discharging a bank of condensers through a load.
Patent GB-1093964-A (GB)
Title: Packages
Inventor: PORTER BRIAN
IPC: B65D5/4805
Filed: 1964-05-01
Abstract: 1,093,964. Packaging crockery. ALLIANCE BOX CO. Ltd. April 20, 1965 [May 1, 1964], No. 18133/64. Heading B8C. A package for a twenty-one piece tea-set is made from a one-piece blank creased and cut so that it forms a multicompartmented box when erected round the contents. The blank comprises four main panels A, B, C, D having outer panels A 1 , A 2 , B 1 , B 2 , C 1 , C 2  etc. The package is erected by folding panels E-E 5  to form a narrow compartment for a large plate. The panels F-F 4 , G-G 4  are folded to form a central partition and then the panels I-I 4  are folded into an S-shape to form compartments at each side of the partition. The two panels H 2 , I 4  form a platform on which six cups are placed and held in position by lid panels A 1 , A 2 , B 1 , B 2 , C 1 , C 2 , D 1 , D 2 . The package may be sealed by taping the edges.
Patent GB-581629-A (GB)
Title: Improvements in and relating to ignition-spark producing devices for spirit lighters and the like
IPC: F23Q2/28
Filed: 1944-09-22
Abstract: 581,629. Electric igniters. ELPHICK, P. Sept. 22, 1944, No. 18137. [Class 75 (iii)] A spirit lighter or gas torch is ignited by drawing the metal tip of the lighter along an electrically conducting guideway formed by a pivoted slotted plate 4 in contact with forked blade spring connected to one end of the secondary winding of an induction coil, a spark being produced when the lighter wipes over the tip of a pointed spring contact 9 connected to the other end of the secondary winding. The plate 4 may be mounted in a housing 1 on a container for the induction coil and batteries and its downward movement under the pressure of the lighter may be limited by a stop 10. The housing may be formed with a cup 11 to receive the lighter when not in use. The lighter may be constructed as described in Specification 567,054.