baber/WOPTO huggingface dataset:
Patent GB-1399013-A (GB)
Title: Sliding gate valve
IPC: B22D41/28
Filed: 1972-05-31
Abstract: 1399013 Sliding gate valve for molten metal USS ENGS & CONSULTANTS Inc 31 May 1972 [7 June 1971] 7033/75 Divided out of 1399011 Heading F4B A reciprocatary sliding gate for use in the valve mechanism described in the parent Specification comprises a refractory plate with a central turning opening and a refractory nozzle port extending from one side of the plate, the gate and nozzle being encased in metal except for the sliding face, and being symmetrical about two perpendicular planes passing through the axis of the turning opening. The sliding face and nozzle lining may be of harder and more erosion resistant refractory than the remainder of the gate. Since reciprocal gate nozzles normally wear unsymmetrically, the life of the gate may be lengthened by turning it after it has become partly worn.
Patent GB-1178339-A (GB)
Title: Improvements in or relating to Forging Presses.
IPC: B30B1/26
Filed: 1968-02-14
Abstract: 1,178,339. Forging presses. MASCHINENFABRIK HASENCLEVER A.G. 14 Feb., 1968 [28 March, 1967], No. 7161/68. Heading B3H. A forging press has its slide 3 driven by an eccentric shaft 4, 5 journalled in eccentric bushes 9 which are rotatable for varying the stroke position of the slide, the shaft portion 5 being surrounded by an eccentric ring 6 having a pressure transfer pivot 7 engaging in a corresponding surface 8 in the slide 3. The bushes have gear teeth 15 meshing with pinions 14 on a shaft 13 with a handle 16. The centre of curvature of the pivot 7 lies within the eccentric 5, as described in Specification 1,165,292.
Patent GB-209637-A (GB)
Title: Improvements in knee joints for artificial limbs
IPC: A61F2/64
Filed: 1923-03-13
Abstract: 209,637. Ernst, E. March 13, 1923. Hinge, pivot, and joint pins; pivoting adjustments.-A knee joint for an artificial limb comprises two tapered tubes A, A<1> screwed together at A<2> and carrying flanges A<4> which are attached to the upper member of the limb. Within the tubes A, A<1> are two tapered sleeves B, B<1> the outer ends of which are squared to enter square holes in the supports C attached to the lower member of the limb. The parts are held together by screws D which enter threaded holes in the sleeves B, B<1>. Looseness in the joint is corrected by tightening the screws D.
Patent GB-819188-A (GB)
Title: Purifying isoprene by distillation
IPC: C07C7/06
Filed: 1957-03-05
Abstract: Isoprene, such as that which has been obtained by the cracking of petroleum, is purified by adding isopentane to the impure isoprene and submitting the resulting mixture to fractional distillation whereby dimethylacetylene, isopropenylacetylene, dimethyl sulphide and other compounds which act as polymerization-inhibitors are removed as distillate.  The purified isoprene can be readily polymerized to produce synthetic rubber.  About 4 to 30 per cent of isopentane by volume of impure isoprene should be used in the distillation, depending on the efficiency of the fractionating column employed.  Maleic anhydride is also added to the distilland in order to remove cyclopentadiene.  The used isopentane, which comes over in the distillate, can be purified by mild catalytic hydrogenation, followed by stripping.  Alternatively, the acetylenic compounds can be removed from the isopentane by means of selective solvents or adsorbents.  In an example, commercial isoprene containing 2.5 volume per cent of dimethylacetylene and a small proportion of cyclopentadiene and other impurities was mixed with 9 per cent by weight of isopentane and 2 per cent of maleic anhydride; and the mixture was fractionated in a packed column, equivalent to 60 theoretical plates, employing a reflux ratio of 50.  Removal of an overhead fraction was continued until substantially complete removal of dimethylacetylene and also of isopentane was accomplished.  The purified isoprene was then dissolved in benzene and polymerized by means of tri-isobutyl aluminium and titanium tetrachloride.  A yield of 88 per cent of polyisoprene was obtained based on the starting material.
Patent GB-538495-A (GB)
Title: Improvements in and relating to isolating valves
IPC: F16K17/00
Filed: 1940-04-22
Abstract: 538,495. Valves. GRAHAM, J., GRAHAM, D. A., and AULD & SONS, Ltd., D. April 22, 1940, No. 7256. [Class 135] An isolating valve of the kind wherein a balanced or substantially balanced valve member is operatively connected to a floating disc actuator arranged in a passage leading to a relief valve, is so arranged that the joint between the main casing and the relief valve casing is not subjected to the pressure on the delivery side of the balanced valve. In the form shown the balanced valve comprises a double-beat valve with slightly unequal beats f, g. The valve spindle h is guided by a sleeve h<SP>1</SP> supported by integral webs h<SP>2</SP> and is directly connected to the actuating disc i, the upper and lower faces of which incline towards each other from the centre to the periphery. The seat l for the relief valve surrounds the upper end of the cylindrical passage j housing the disc i. The valve m is loaded by a spring o adjusted by a screwed member t having a flange t<SP>1</SP> with an even number of holes adapted to co-operate with a flange u on the relief valve casing having an uneven number of holes, one pair of said holes being adapted to receive a locking pin v. The valve m may be loaded by weights or a weighted lever. Sediment is received in a cup k detachably secured to the lower part of the casing.
Patent GB-1325563-A (GB)
Title: Heater adapted to burn a vapourizable liquid fuel
IPC: F02N19/10
Filed: 1970-07-31
Abstract: 1325563 Pot burners; heaters FLETCHERHENCHEL THERMAL INDUSTRIES Ltd 31 July 1970 [1 Aug 1969] 7291/73 Divided out of 1325562 Headings F4A and F4T The Specification is identical to that of the parent Specification 1,325,562 except that the present claims are directed towards the burning of a vaporizable liquid fuel and omit all reference to the drainage means 50.
Patent GB-249523-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B9/02
Filed: 1926-03-16
Abstract: 249,523. Siemens - Schuckertwerke Ges. March 20, 1925, [Convention date]. Armouring cables and conductors; cables with anti-induction devices.-To minimise the occurrence of eddy currents in the lead sheathing of alternating-current cables, a layer of magnetic material, preferably of high electrical resistance, is placed under the sheathing. This layer may be either tubular or in the form of a helical winding and may be embedded in insulating material to prevent eddy currents passing from it to the sheathing.
Patent GB-733509-A (GB)
Title: Improvements relating to hot water storage vessel of the heat exchange type
Inventor: SIMPSON ERIC
IPC: F24D3/08
Filed: 1953-03-17
Abstract: 733,509. Hot water supply systems. RANGE BOILERS, Ltd. March 16, 1954 [March 17, 1953], No. 7299/53. Class 64 (1). A hot water storage vessel a which has a bottom inlet n and a top expansion pipe o contains a calorifier which comprises a hollow annular heat exchanger b surrounding a chamber c and a space g below the latter. The chamber c communicates with both the annular heat exchanger b and the space g, respectively through an opening or openings d below the top of the' chamber e and through a pipe h which has openings near the top. The heat exchanger b has top and bottom flow and return connections e, f with a boiler, and a vent j  which is sealed by the water in the vessel a. The calorifier and the rest of the primary system are filled from the vessel a through the pipe h and chamber c. When the water in the primary system is heated, its expansion is taken up by displacement of the air trapped in the chamber c into the space g. The vent j comprises a tube with a constriction m and openings into an outer tube k with a closed top. In a modification, the top and bottom of the chamber c are domed, and the vent comprises an inverted U-tube with a constriction at its bend.
Patent GB-1146774-A (GB)
Title: A gripping device for a machine for forming the winding sections of electrical machines
Inventor: HANNARD ANDRE
IPC: H02K15/04
Filed: 1967-02-16
Abstract: 1,146,774. Shaping coils. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. 16 Feb., 1967 [16 Feb., 1966], No. 7390/67. Heading B3A. A gripping device for holding the ends of winding blanks in a machine for shaping the windings of electrical machines comprises a fixed part 1 secured to a support 2 having a nose 5 defining a plane surface bearing on one of the narrow sides of the winding blank 4. Two parallel jaws 11, 12 engage the blank along its two wide sides and are part of two slidable L-shaped arms 9, 10 respectively, which arms are biased by springs 18, 17 respectively, against a vertically adjustable wedge-shaped member 15. The jaws 11, 12 are opened by raising support part 8 upon which the arms 9, 10 are free to slide as they are moved by the wedge against the action of their springs. A block 26 is positioned between the jaws and engages the other narrow side of the blank. The part 8 is moved by a linkage 21, 22 by means of a rod 25 of a pivoted piston-cylinder assembly (not shown). Since the pivot points of the links 21, 22 are in a straight line when the piston-rod 25 is fully extended, they are in a locked position when the winding blank is held in the device. The vertical positions of the wedge 15 and the block 25 are adjustable to suit the size of the winding blank being shaped.
Patent GB-545041-A (GB)
Title: Improvements in or relating to machines for applying spots to caps of the crown type
IPC: B21D51/46
Filed: 1941-06-11
Abstract: 545,041. Stapling. PETERS BROS. RUBBER CO., Inc. June 11, 1941, No. 7416. Convention date June 11, 1940. [Class 89 (iii)] [Also in Group XVII] Spots are applied to caps of the crown type having a shell and a cushion liner, in a machine which cuts the spots, places and holds them in correct position upon the liner, and then applies a mechanical securing element such as a staple to hold them permanently in position. The caps 13 with cushion liners 12 are fed to the right hand ends of the grooved guides 2, 3 as shown in Fig. 1. The caps are advanced in a stepby-step manner by means of the feed comb 15, Fig. 22, the fingers 16 of which pass between adjacent caps while the comb is oscillated by means of eccentric pins 23 on the rotating wheel 21. The moving caps pass beneath a wheel 30 with peripheral plungers 31, Figs. 1, 7, rotated by a ratchet mechanism so that the wheel rotates in step-by-step synchronism with the feed movements of the caps. The plungers touch the surface of a roller 50 rotating in the reservoir 40 of filler material. Each plunger therefore supplies a film of filler material to each liner as the caps pass. A strip 116 of aluminium foil or the like is fed in a step-bystep fashion through the machine by the operation of a ball clutch, and the strip 166 from which the staples are made is fed forward at the same time, and points 235 are cut on the strip by the punch 230, Fig. 10. The points are then bent down by a plunger 238 and the staples 247 are severed from the strip by the die 245. When a cap reaches the anvil 118 it is stopped and the outer die piece 122 moves down to engage the liner 12. The plunger 124 then punches out the disc spot 115 and presses it on to the liner 12 as shown in Fig. 10. While the spot is thus held a staple 27 is fed down by the plunger 261 and pierces the spot to hold it to the liner. As the cap is on the anvil 118 the points of the staple are bent over so that they hold securely. Latch mechanism is employed to stop the feed of the spot and stapling strips 116, 165 if no cap is on the anvil for treatment.
Patent GB-942020-A (GB)
Title: Improvements in or relating to vehicle tyres
IPC: B60C11/00
Filed: 1960-03-03
Abstract: 942,020. Tyre treads. CONTINENTAL GUMMI-WERKE A.G. March 3, 1960 [March 21, 1959], No. 7544/60. Heading B7C. A tyre tread comprises circumferentially alternating directly adjacent sections a and b of substantially equal circumferential length and each extending across the full transverse width of the tread, the sections a comprising traction blocks or ribs effective, say, on soft ground, and the sections b comprising a plurality of blocks which are separated by grooves and are circumferentially narrower than the ribs of sections a to provide a profile effective on, say, hard road surfaces. Fig. 1 shows the sections a comprising transversely disposed chevon-shaped ribs 2 separated by grooves 3, with the sections b composed of narrower transverse chevron ribs 4 separated by transverse grooves 5 and broken by circumferential grooves 5<SP>1</SP>. Fig. 5 shows a tread comprising circumferential zig-zag ribs 6 which are continuous in sections a, and some of which are broken into blocks 12 by transverse grooves 11 in sections b, the blocks 12 having carborundum granules 13 embedded therein. Wire helices 14 may be embedded in the continuous rib portions of the section b. Fig. 4 shows a solid tyre comprising a tread of alternating sections a and b of wide and narrow transverse ribs 2, 4 respectively. Recesses 10 are provided in the radially inner surface of the tyre below the sections b.
Patent GB-346930-A (GB)
Title: Improved window, screen, and door framing sections
IPC: E06B7/14
Filed: 1930-03-08
Abstract: 346,930. Window frames ; lintels. LEYLAND, F. V., The Bungalow, Egerton Road, Monton Green, Manchester. March 8, 1930, No. 7583. [Classes 20 (iii) and 20 (iv).] A lintel, Fig. 1, and transome, Fig. 2, for a window opening are formed with upwardly and inwardly inclined lower edges b to prevent creeping of moisture to the edge of the window frame c.
Patent GB-746314-A (GB)
Title: Perimeters for the examination of visual fields
IPC: A61B3/024
Filed: 1954-03-16
Abstract: 746,314. Sight-testing apparatus. GAMBS, P. F. M. March 16, 1954 [June 9, 1953], No. 7623/54. Class 97 (1). In a perimeter comprising a hemispherical member of translucent material at which the patient looks, the interior of the member is coated with a layer of paint, preferably dullwhite in colour, to allow a clear image of a light spot to be projected thereon through the member and to obscure from the patient's view meridian and parallel lines formed on the convex side of the member. As shown, the patient is supported by a chin and head rest 6, on a stand 4 so that.his eye is at the centre 14 of the hemisphere over the surface of which a lightspot projector 9 may be moved to chart the field of vision of one eye. For charting the other eye the hemisphere is slid laterally along guides 13 by means of a lever 15 until the said other eye is at the centre 14. The stand 4 carries a desk 11 for supporting- transparent chart member 'on which the, results of the examination may be plotted. An aperture 3 is provided in the. hemisphere to allow the physician to check the position of the patient's eye.
Patent GB-1086391-A (GB)
Title: Polyoxymethylenic copolymers
IPC: C08G2/00
Filed: 1965-02-22
Abstract: Trioxane is copolymerized with a cyclic acetal of formula <FORM:1086391/C3/1> in which R1 and R2 are hydrogen, alkyl radicals containing 1-5 carbon atoms, cycloalkys or phenyl radicals at least one being different from hydrogen or the group <FORM:1086391/C3/2> is a bifunctional cycloalkyl radical substituted or not with alkyl or vinyl groups, and R3 and R4 are hydrogen, or aliphatic or cycloaliphatic radicals, in the presence of a Lewis acid catalyst at between 30 DEG  and 120 DEG  C. to give copolymers consisting of monomeric -CH2O- units and containing oxyalkylenic units of formula <FORM:1086391/C3/3> Specified cyclic acetals are 2-methyl-dioxolane, 2 - 2 - dimethyl - dioxolane, 2 - 4 - dimethyl-dioxolane and cyclic ketals of ethylene glycol and cyclopentanone, cyclohexanone, methylcyclopentanone or methyl-cyclohexanone.  The copolymers may consist of oxymethylenic and oxyalkylenic sequences generally in a ratio of 6:1 to 1000 to 1.  Specified Lewis acids are antimony fluoride, fluorborate or pentachloride, aluminium fluoride, titanium pentafluoride, phosphorus pentafluoride hydrofluoric acid, phosphoric acid and (preferred) boron fluoride either complexed or not.  The polymerization preferably takes place in the absence of a solvent, but one could be present.
Patent GB-104279-A (GB)
Title: A Fitting or Attachment to Facilitate the Carrying of Coats, Mackintoshes and the like.
Inventor: MYERS STEPHEN DAVID
IPC: A45F5/06
Filed: 1916-05-30
Abstract: 104,279. Myers, S. D. May 30, 1916. Attaching coats to wearing-apparel.-To facilitate carrying over the shoulder, a garment such as a mackintosh has sewn or otherwise secured to it a band a with a lengthening slide or buckle band a loop f which engages a hook e on a clip d by which the device is attached to the coat collar. The band may be entirely separate from the garment to be carried.
Patent GB-304510-A (GB)
Title: Improvements in or relating to machine guns
IPC: F41A17/14
Filed: 1928-03-13
Abstract: 304,510. Werkzeugmaschinenfabrik Oerlikon. Feb. 11, 1928, [Convention date]. Machine guns. - Relates to machine guns, especially of large calibre, of the kind in which the breech-block is connected to a spring-controlled sleeve around the barrel, and no positive lock is provided for the breech-block, the recoil energy of firing being expended in checking the forward movement of the breech mechanism and then imparting to it the backward opening movement. According to the invention, the mass of the breech mechanism is increased by means of two rails 5, with handles 9, placed alongside the barrel 1 and connected at one end to the breechblock B by a transverse bolt 7 and keys 8, and to the sleeve 2 at the other end by a guiding bush 3 and keys 6. Moreover, the rails 5 Leave a space between them for a casing 12, Fig. 6, on the barrel 1 adapted to contain a safety device against " double charging " comprising a feeler 11 and a two-armed hooked lever 15 controlled by springs 14, 16. If a cartridge h is not completely ejected from the chamber 1<a>, the feeler 11 is held up by the remains of the cartridge, and the hook 15b of the lever 15 engages a tooth 3a on the bush 3 and prevents the completion of the forward closing movement of the breech mechanism; but when the chamber 1<a> is clear, the feeler 11 is pushed in by the spring 14, which is stronger than the spring 16, and the hook 15b of the. lever 15 is lifted out of the path of the tooth 3<a>.
Patent GB-515832-A (GB)
Title: Method of and apparatus for the production of aerated or gasified spray or foam
IPC: A61H33/02
Filed: 1938-03-14
Abstract: 515,832. Baths; aerating liouids; water-softening. WILLIS, F. W., and SIMPSON, A. March 14, 1938, No. 7804. [Classes 26 and 46] [Also in Groups XXI and VI] In the production of an aerated liquid spray or foam suitable for water-softening, bathing, and other purposes, the requisite gas is compressed and supplied to the aerating apparatus by the action of a head of water or a falling weight. In apparatus for providing an aerated shower bath, Fig. 3, water under pressure is passed into a closed tank 19 by a pipe 20, and compresses the air contained in the tank. The air is forced through a pipe 25a into a closed mixer 23, where it meets, and aerates, hot and/or cold water supplied to the mixer by pipes 29, 30 and a pipe 28. The aerated water passes by pipes 26, 27 to spray pipes 26a, 27a. The joints between the pipes 26, 27 and 26a, 27a may be arranged as valves, which open when the latter pipes are turned to horizontal, operative, position. Soap or other material may be placed in the mixer 23 to give the spray or foam any desired character. When the tank 19 is full of water, it must be drained and the operation can then be repeated. Wire gauze may be arranged in the mixer and in the pipes 26a, 27a. In a modification, Fig. 2, air is compressed in a cylinder 12 by a falling weight 14, which is raised by a cable 15 and may be held in raised position by a pawl and ratchet 18a, 18.
Patent GB-862447-A (GB)
Title: Toy
IPC: A63H33/22
Filed: 1958-03-11
Abstract: 862,447. Pictorial toys. FORTY, W. L. May 1, 1959 [March 11, 1958], No. 7811/58. Class 132(3). A toy comprises a mounting board 1 provided with apertures for receiving pegs attached to stationary objects 2-7. A swan 11, and the plank 13 of a see-saw may be oscillated on pivot pins and the sails of a windmill are rotatable. A kite is supported by a top string 16 passing through the mounting board, and by tightening a lower string 17 while loosening the top string, the kite is given the appearance of being pulled in. A toy yacht 18 may be pulled in one direction by a string, and moved in other directions by a magnet 19 acting on an iron member 20 provided on the yacht. Alternatively, the object being moved may have a tab that moves in a slot, the tab being operable from the back of the board. The board is provided with slats 21 to allow the board to be laid flat while pivot pins and pegs are pushed through it and has a hinged flap 22 to allow the board to be stood upright like an easel.
Patent GB-1124401-A (GB)
Title: Improvements in or relating to superconductors
IPC: H01L39/14
Filed: 1967-02-17
Abstract: A super-conducting cable comprising a core of super-conductor wires, e.g. of Nb-Zr or Nb-Ti, each of which may bear a coating of high purity good conducting material e.g. Cu or Al and the interslices of which may be filled with conducting metal, e.g. by dipping the core into a melt of a low melting point alloy such as Pb-Bi or In-Sn, is surrounded by a layer of aluminium which is anodized to form an insulating coating layer for the cable.  The aluminium layer may be formed either by wrapping a tape of the metal around the core or by electro-deposition from a solution in xylene or toluene of a quaternary onium salt complex of aluminium as in Specification 1,104,930 e.g. a complex [(CH3)3 (C6H5CH2)N] Cl.2.2 Al (C2H5)3. 6 xylene at 80 to 120 DEG C.  The aluminium layer may be anodized in aqueous oxalic acid, optionally impregnated with organic or inorganic pigment or a lacquer, and finally sealed.
Patent GB-1472141-A (GB)
Title: Transport vehicle
IPC: B60P1/30
Filed: 1975-02-25
Abstract: 1472141 Loading bales on to vehicles; endless roller conveyers L H WILSON 25 Feb 1975 [28 Feb 1974] 7905/75 Headings B8E and B8A An agricultural trailer having a V-shaped body of side walls 10 and an end wall 12 has the rear closable by doors 18 and transverse removable members 16, 17. The floor 46 is suspendable by cables 30 attachable to rings 31 and actuable by a ram 42 to be lowered from the position of Fig. 2 to the ground. When in use for picking up bales a pick-up attached to a tractor 24 delivers the bales by an elevator 56 to a longitudinal conveyer 48 comprising a chain 481 having bale engaging lugs, Fig. 5, running between rails 483, 484 which delivers the bales, via a disc 58 constantly driven or rotatable by the bales or manually, to a transverse conveyer 54 of rollers 542. The conveyer 54 has a frame 541 running by rollers on rails on top of the walls 10 and manually or power driven therealong. Thus in loading bales on the conveyer 48 run up ramp bars 543 on to the disc 58 and thence on to the conveyer 54. With the floor 46 raised and the conveyer 54 at one end of the trailer or operator standing on the floor can lift the bales off the conveyer 54 to place them in a row on the floor. As this row is completed the conveyer 54 is moved one bale width towards the other end until a complete layer is formed after which the floor 46 is lowered for the loading of the next layer. The trailer may have a pusher to unload the bales through the opened doors 18 or the floor 46 may be lowered to the ground and disconnected from the cables 30. With the doors 18 open and members 16, 17 removed the trailer can be drawn clear of the stack which can then be pushed off the floor by the then closed doors 18 as the floor is again drawn into the vehicle. The floor 46 which may have wheels or skids being drawn between the walls 10 by a winch 50 for re-attachment to the cables 30.