baber/WOPTO huggingface dataset:
Patent GB-1469418-A (GB)
Title: Reinforcement cages for concrete tunnel lining segments
IPC: E21D11/08
Filed: 1975-07-04
Abstract: 1469418 Tunnel linings CHARCON TUNNELS Ltd M A W GOODERHAM T E HORNCY and J WEAVER 4 July 1975 [5 July 1974] 29964/74 Heading E1F A reinforcement cage for a concrete tunnel lining segment (an axial end view is shown in Fig. 1) comprises a part cylindrical wire grid 10 of spaced circumferentially extending members crossed by spaced axially extending members 13 and a part cylindrical rigid frame 11 located concentrically on the inner side of the grid 10, the frame 11 having a perimeter which lies generally radially inwardly of the perimeter of the grid 10 and the circumferentially extending members being formed with hook-shaped end portions 14 on the inner side of the grid 10 which engage around adjacent parts of the frame 11 to hold the frame 11 against separation from the grid 10  and to reinforce the ends of the concrete segment. Preferably, circumferentially extending sides of the frame 11 are secured to the outer circumferentially extending members of the grid 10 by metal clips 16. The frame 11 may have a central axially extending member 15 secured at its ends to the circumferentially extending sides of the frame, a structure comprising e.g. a V-shaped rigid wire grid 18, extending between the grid 10 and the member 15 to provide reinforcement for a central ridge 4 of the segment.
Patent GB-346375-A (GB)
Title: Improvements relating to machines for the reduction of materials, such as, ball mills
IPC: B02C17/18
Filed: 1929-10-03
Abstract: 346,375. Nonconducting coverings for heat and sound. KENNEDY, J. E., 258, Riverside Drive, New York, U.S.A. Oct. 3, 1929, No. 30049. [Class 64 (ii).] In a machine for the reduction of materials, of the kind having a rotary casing within which crushing devices are disposed, the casing is surrounded by a plurality of layers of porous or cellular sound insulating material, each layer of material having a different porosity. The mill 2 is provided with layers 31, 33 of sound neutralizing material such as cork, which is cellular or contains air cells. A layer of porous material may be interposed between the lining 20 and casing 2 and the outer layers may be separated by sheet metal, paper, &c. linings, the whole being covered by painted fabric &c. The porosity of each layer diminishes away from the drum. The sound insulating material also acts as a heat insulating material.
Patent GB-678569-A (GB)
Title: Improvements in or relating to back boiler fires
IPC: F23C99/00
Filed: 1949-11-23
Abstract: 678,569. Auxiliary boiler-heaters. NORTH THAMES GAS BOARD, ANDREW, L. W., and HOWARD, D. C. Nov. 23, 1950 [Nov. 23, 1949], No. 30073/49. Class 126 A portable gas heater for the boiler 8 of a back-boiler fireplace comprises a burner bar 5 enclosed between a radiant fret 7 and a refractory block 6, the assembly being mounted on a base plate 3 adapted to rest on the grate 4 so that the fret faces the boiler 8 and being enclosed by a cover 1 which fits against the front face of the boiler. The cover may either be integral with the base plate 3 or, as shown, separate therefrom, and is provided with a waste gas outlet 9; a lighting hole is formed in the block 6 adjacent the burner 5. The latter is preferably V-shaped in plan to provide a greater number of burner nozzles tor a given width of boiler.
Patent GB-636979-A (GB)
Title: Improvements in or relating to liquid pouring apparatus for centrifugal molds
IPC: B22D13/10
Filed: 1947-11-12
Abstract: 636,979. Centrifugal casting-machines; pouring apparatus. CENTRAL FOUNDRY CO. Nov. 12, 1947, No. 30116. Convention date, Nov. 20, 1946. [Class 83 (i)] Metal-pouring means in a centrifugal casting- machine comprises a ladle, one part of which is constrained to move in a path having a vertical component relative to a mould rotating about a substantially horizontal axis, so that molten metal is poured at a constant volume per unit time and flows into the mould with progressively decreasing velocity. Molten metal is fed to a centrifugal furnace 17 from a ladle 26 by way of a tilting shoot 25 and a fixed trough 11. The lower end of the shoot is pivotally mounted at 24 and the rear or upper end may be raised or lowered by cylinders 35. At its rear end the shoot is pivotally secured to the front of the ladle, the rear of which is secured to rollers 31 moving in cam slots 34 in the framework of the machine. Starting from the position shown in Fig. 1, the rear end of the shoot is slowly lowered by means of the cylinders 35 so that the forward end of the ladle is also lowered and pouring begins. The form of the cam slots 34 is chosen so that for uniform movements of the pistons in the cylinders 35, the tilting of the ladle is such that the molten metal is discharged at a uniform rate. As, however, the inclination of the shoot 25 is being reduced throughout the pouring period, the velocity of the molten stream reaching the mould is progressively reduced. The shoot is actuated by three cylinders arranged in a transverse line across the machine, the centre one being operated by compressed air for rapidly raising the shoot after a pouring operation while the outer cylinders are supplied with oil or water and control the downward movement of the shoot during pouring.
Patent GB-1088724-A (GB)
Title: Improvements in or relating to sintering
Inventor: HARRISON JOHN DAVID LAWRENCE
IPC: B22F3/12
Filed: 1964-07-29
Abstract: In a process of producing a sintered body of a non nuclear refractory metal, carbide or nitride such as stainless steel, Mo, W, and the carbides and nitrides of Ti, Zr and Nb the steps of compaction and sintering are carried out in an inert gas atmosphere which contains less than 20 p.p.m. each of oxygen and water vapour for compaction and less than 10 p.p.m. each of oxygen and water vapour for sintering.  The maximum powder size should be 10 microns and the maximum sintering temperature 1700 DEG C. e.g. stainless steel at 1250 DEG C., Mo at 1600 DEG C.  In the case of W, Mo and stainless steel the powder may first be treated in hydrogen. All the powders are hall milled in the inert gas atmosphere prior to compaction.
Patent GB-324108-A (GB)
Title: Improvements in vehicle seats
IPC: B60N2/06
Filed: 1928-10-18
Abstract: 324,108. Valkenburg, H. L. van, and Miller, S. Oct. 18, 1928. Sliding seats; adjustments.-In a vehicle seat, wherein in a known manner a frame 19 is slidably and pivotally connected with a fixed bracket 11 to be locked in selectively determined positions of longitudinal adjustment, a parallel motion mechanism is connected with the bracket and the frame for ensuring a parallel movement between these parts. Such a parallel motion mechanism is shown in Fig. 3, in the form of lazytongs 30 connected to forward and rearward shafts 13, 21. As the seat 8 is moved forwardly or rearwardly, flanges 26, 27 on the frame 19 run on rollers 25 pivoted eccentrically on the shaft 13, and when it is desired to secure the seat in adjusted position, the shaft 13 is rotated by means of the handle 18 and the eccentrically mounted rollers 25 will raise the slotted members 19 so that one of the serrations 23 engages the shaft 13.
Patent GB-382078-A (GB)
Title: Improvements relating to air heater for carburetters of internal combustion engines
IPC: F02M1/00
Filed: 1931-10-31
Abstract: 382,078. Cooling lubricant. BARBAROU, M. J. B., 28, Boulevard d'Argenson, Neuilly-sur-Seine, France. Oct. 31, 1931, No. 30239. Convention date, Dec. 29, 1930. [Class 12 (iii).] A combined air heater and oil cooler for internal-combustion engines comprises a single receptacle 1 containing a sump 6 in which hot lubricating oil from the crank case 2 is collected, and a nest of tubes 14 through which air is drawn by a carburetter 3. The oil is withdrawn by a pump from the sump 6 through a filter 7 and is fed to the top of the cooler by a connection 9, whence it flows through perforations 15 in the housing 16 of a byepass valve 17 located at the base of the cooler. The nest of tubes is divided by a longitudinal passage 5, which is divided by a transverse partition to form a byepassing duct 13, the lower end of which is normally closed by the valve 17 ; the forward portion of the passage 5 provides direct communication between the engine crank case outlet 4a and the sump 6.
Patent GB-669605-A (GB)
Title: Improvements in or relating to a machine for making wire fabric
IPC: B21F27/06
Filed: 1949-11-25
Abstract: 669,605. Making wire netting. WEAN EQUIPMENT CORPORATION. Nov. 25, 1949 [March 31, 1949], No. 30247/49. Class 83 (iv). Winding and reeling; twisting wires together.-In a machine for making wire netting in which wires are guided to staggered rows of twisting pinions means is provided for forming slack in the mesh wires without affecting the line wires. Wires 8 are fed from banks of spools 6 by a capstan roll 12 to a twisting roll 2 and slack-forming roll 3. The netting is stripped by a roll 4 and fed by rolls 16 to a looper 17 from which it is wound on rolls by a device 5. Twisting. The twisting roll 2 carries longitudinal split plates 21 clamped to the roll and housing slotted twisting pinions 27 rotated by racks 31 actuated by stationary cams. Wire is guided to the pinions by surfaces 37, slots 38 providing passage for line wires. Adjacent radial plates 21 are offset to stagger the pinions and surfaces 37. The side surfaces 72, 73 of the pinion slot are of different inclinations to determine the order in which wires pass into the slot. Slack formation. The roll 3 carries detachable radial blades 50 secured by screw and recess means in sections which provide spaces for line wires and is adjusted by screw and nut means 59 by hand wheels 65. The blades enter between the twister plates 21 and pull excess wire through to allow for twisting. Wire feeding. Wire is tensioned by staggered bars 77 adjusted by screws 78. Each wire passes round the capstan 12 which is continuously rotated from a power shaft. If the capstan overfeeds wire tends to pile up between the bars 77 and the capstan and slackens on the capstan to reduce the feed. The machine is driven by an electromotor through a gear-box with a flexible joint in the drive of the roll 3. In order to provide equal twists between the mesh wires and selvedge wires on each edge it is necessary for the right-hand selvedge wires, viewed in the direction of movement of the mesh, to enter the twister pinion before the mesh wires and the reverse on the left-hand side. To accomplish this the selvedge wire on the left-hand side is passed over pulleys 14, 15 to vary the approach direction and to allow prior entry of the mesh wire in the pinion. Specifications 669,629 and 669,630 are referred to.
Patent GB-259417-A (GB)
Title: A process for separating and obtaining the constituents of waste oils and fats
IPC: C11B3/14
Filed: 1925-12-01
Abstract: 259,417. Continentale Akt.-Ges. fiir Chemie, and Tern, R. Dec. 1, 1925. Oils, extracting.-Waste oils and fats are distilled in vacuo with steam in a series of three vessels A, B, C, connected through a contact condenser D with an air pump E. The vessel A which receives the oil is heated to about 290‹ C. and the vessel B to about 200' C. Fatty acids collect in the vessel B, and hydrocarbons and non-saponifiables in the vessel C. The fatty acids may be afterwards distilled from the vessel B and collected in the vessel C which mav be jacketed for circulation of a cooling medium. In treating the residual oil obtained in the production of olive oil from pressed olives by extraction with carbon bisulphide &c., light fatty acids, stearin pitch, and combustible hydrocarbons are obtained. In treating fluid Swedish resin (an oil obtained in the production of cellulose from wood by the sodium sulphate process) the material is bleached by treatment with hydrogen peroxide, dried, and distilled from the vessel A with addition of concentrated hydrogen peroxide. Stearin pitch, fatty acids, and a substance containing colouring matters, mercaptans, and non- saponifiable constituents are obtained.
Patent GB-755807-A (GB)
Title: Mechanical excavator
IPC: E02F3/14
Filed: 1954-10-21
Abstract: 755,807. Excavating earth and rock. DECAT, J. Oct. 21 1954 [Dec. 2, 1953], No 30337/54. Class 68(1) A mechanical excavator of the dredger type having a scraper chain for digging away material has a frame supporting the chain g comprising two beams a, b hinged to one another at c, the beam b, formed of welded tubes or the like, is hinged at b<SP>1</SP> in a trough d which is mounted on a carriage e. The free end of the beam a can be raised and lowered by a jib i<SP>2</SP> and a winch i<SP>8</SP>. The chain g passes over a driving pinion h, driven by a motor h<SP>5</SP>, guiding rollers a<SP>3</SP>, b<SP>3</SP> and a tensioning roller f. Scrapers with teeth g<SP>2</SP> and tails g<SP>3</SP>, Fig. 3, are secured to the links of the chain g. In operation the trough is lowered about a pivot d<SP>4</SP> by a lever k and linkwork until the lip d' rests on the ground. The end of the beam b is raised by threaded rods b<SP>4</SP> until the scraper chain clears the lip d<SP>3</SP>, then the excavated material is carried by the scrapers up the trough d and discharged therefrom. Cutting discs a<SP>4</SP> are formed one each side of the roller f to co-operate with the scrapers. The back wheels e<SP>5</SP> of the carriage may be swivelled about vertical axes and locked in any of three positions.
Patent GB-341039-A (GB)
Title: Grease supplying devices
IPC: F16N5/00
Filed: 1929-10-07
Abstract: 341,039. Lubricating-apparatus. MEYERSOHN, H., 78, Avenue des Champs. ElysÚes, Paris. Oct. 7, 1929, No. 30344. [Class 102 (ii).] Compressed air apparatus for supplying lubricant comprises a lubricant container R having a valved connection 5 for the air supply and a valved delivery pipe 8 for the grease. The pipe 8 is connected to a device A comprising a pipe 16 opening into a pipe 17 which communicates with the discharge pipe 13 and is fitted with a plunger 18 operable by a lever 19. Normally the lubricant is fed to the points to be lubricated by the compressed air in the container R, but if necessary additional pressure may be applied to it by operating the plunger. A meter 7 measures the amount delivered.
Patent GB-736143-A (GB)
Title: Improvements in or relating to electric discharge tubes
Inventor: HOUGH GEORGE HUBERT
IPC: H01J17/48
Filed: 1950-12-12
Abstract: 736,143. Multi-gap cold-cathode tubes. STANDARD TELEPHONES & CABLES, Ltd. Dec. 7, 1951 [Dec. 12, 1950], No. 30364/50. Class 39 (1). A cold cathode gas-filled electric discharge tube contains electrodes defining at least three substantially identical two - electrode gaps of such length and so spaced from one another, and a gas mixture of such properties and at such a pressure that the cathode dark space of each of the gaps, when a normal glow discharge is established across it, extends at least to the cathode dark space of each of the other gaps and so that a discharge in any one of the said gaps ionizes all the other gaps to a degree such that the potential required to discharge a gap so ionized and the potential required to maintain the discharge across that gap are substantially the same. In the embodiment shown the electrode structure comprises a disc anode A and eight cathodes K2 &c. spaced equally around the circumference of a circle of 3 mm. diameter with a ninth cathode K1, which may act as a priming cathode, located at the centre of the circle. The working ends of the cathodes are in the same plane, which, is 3 mm. from the anode. The electrode assembly is mounted on four mica plates MP supported by rods S. The gas filling is a mixture of neon and argon at a pressureof from 15-40 mm., preferably 25 mm. of mercury. In an alternative embodiment, the cathodes are in the form. of inverted L's with the shorter legs pointing radially inwards so that the cathode faces at the ends of the legs are on a circle of 1 mm. diameter, the vertical distance between the disc anode and each cathode being 2 mm. The gaps strike from the cathode extremity to the anode, but the discharge spreads along the leg of the cathode, which is parallel to the anode. The tube is described in operation in a simple coincidence circuit, and may also be used with the common electrode as cathode and the individual electrodes as anodes to act as a mixer tube in the gating circuits described in Specification 736,142, [Group XL (c)]. Specification 677,893 also is referred to.
Patent GB-777740-A (GB)
Title: Improvements in or relating to electronic switching circuits embodying transistors
IPC: H03K17/60
Filed: 1954-10-21
Abstract: 777,740. Automatic exchange systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 21, 1954 [Oct. 24, 1953], No. 30399/54. Class 40(4). [Also in Groups XL(b) and XL(c)]. In a system for testing for an idle line, transistors 1<SP>1</SP>, 21 and 1<SP>11</SP>, 2<SP>11</SP> are arranged in series with relays 271, 27<SP>11</SP> and the wipers of group selectors 281, 28<SP>11</SP>. The transistor combination behaves like a gas switch (see Group XL (c)) so that when a wiper passes to a contact having the negative supply potential, the transistors change to a low-resistance condition and the associated relay 271 operates, voltage drop then occurring across resistor 29. When the wiper of another selector reaches the same commoned line associated with resistor 29 the potential is insufficient to operate the transistor switch and the wiper is stepped on.
Patent GB-504474-A (GB)
Title: Improvements in and relating to fastening devices for ships cabin doors
IPC: E05C17/16
Filed: 1937-11-08
Abstract: 504,474. Ajar fastenings for cabin doors. KAYE & SONS, Ltd., J., and DIGGLE, H. Nov. 8, 1937, No,. 30540. [Class 44] In an ajar fastening for ship's cabin doors a plate A carries a pivotally mounted member A<1> with enlarged head A<4>, and a socket or eye A<5>. A stay C is pivoted to a member B<1> which is pivoted on a plate B the pivots being arranged to give universal movement. Friction washers A<3> of fibre, felt, &c. are incorporated in all the pivot joints. The stay has a slot Cl with an enlargement C<2> near the pivoted end through which the head A<4> may be passed, the outer end of the slot being upwardly directed as shown. The free end of the stay carries a stud C<4> which, in the fastened position shown, drops into socket A<5>. The edges of the slot may be arranged to exert frictional grip on member A<1> which may have a rubber band, or the edge of the slot may have notches. With member A<1> extending through the slot as shown release can only be effected when the door is closed, but member A<1> may be swung out of use to the position shown in dotted lines, stud C<4> being used with socket Ar<5> as an ordinary hook fastening.
Patent GB-817069-A (GB)
Title: Improvements in and relating to storage tanks
IPC: B65D88/50
Filed: 1957-10-01
Abstract: A weather seal for the floating cover of an oil storage tank comprises an envelope of synthetic rubber which preferably conducts electricity.  A vulcanizable composition for the purpose is: 2-mercapto imidazoline 0.12, light calcined magnesia 1.67, zinc oxide 1.76, small particle size oil-furnace black 35.03, odourless, light-coloured petroleum oil 13.59, stearic acid 0.25, vulcanized vegetable oil 10.98, neoprene 36.60 per cent. Specification 759,414, [Group XXIX], is referred to.
Patent GB-898813-A (GB)
Title: Improvements in or relating to packaging
IPC: B65B5/02
Filed: 1957-10-02
Abstract: 898,813. Feeding webs. MOORE, H. N. Oct. 2, 1958 [Oct. 2, 1957(3)], Nos. 30774/57, 30775/57 and 30776/57. Class 100(1) [Also in Group XVII] A paper web 214 is fed to a packaging machine (see Group XVII) by being engaged adjacent opposite edges by pins 224 on intermittentlymoving endless belts 223, the paper being constrained to follow the belt and pulleys 220 by a roller 227.
Patent GB-743620-A (GB)
Title: Improvements connected with centreless grinding machines
Inventor: SCRIVENER ARTHUR
IPC: B24B5/18
Filed: 1953-11-07
Abstract: 743,620. Centreless grinding. SCRIVENER, Ltd., A. Nov. 8,1954 [Nov. 7, 1953], No. 30868/53. Class 60. In a centreless grinding machine a slide e on which the workholder and control wheel are mounted is provided with a roller or spindle e<SP>1</SP> located between the parallel faces of a pair of cam plates c, d mounted on a slide b. A hydraulic cylinder a actuates the slide b and hence imparts a positive forward and return traverse to the slide e for plunge feed grinding. A screw f enables the position of the control wheel to be adjusted. Specification 570,793 is referred to.
Patent GB-309163-A (GB)
Abstract: 309,163. Bensa, F. April 6, 1928, [Convention. date]. Perylene tetracarboxylic acid anhydride is obtained by oxidizing the dyestuffs obtained by treating diacetyldichlorperylene with cuprous cyanide in the presence of organic solvents, as described in Specification 278,325. In examples, the dyestuffs obtained in accordance with Examples 1 and 2 of the said Specification are oxidized, in finely-divided condition, with bichromate or potassium permanganate.
Patent GB-1197106-A (GB)
Title: Apparatus for the Installation of Refractory Blocks
IPC: B22D41/28
Filed: 1968-06-28
Abstract: 1,197,106. Repairing apparatus for ladle slide valves. METACON A.G. 28 June, 1968 [6 July, 1967], No. 31004/68. Heading F4B. Apparatus for use in replacing refractory blocks in a casting ladle slide valve comprises a box-like frame 2 having an upper cover 10, 10<SP>1</SP> formed with grooves 18 receiving tongues 62 of a slide element 60 adjustably supported in said frame, a centering mandrel 52 movable in a guide tube 44 by a rack and pinion 50 and a pressure mandrel 36 swingable on an arm 30 about a filler 24 into two working positions one of which coincides with the centering mandrel 52. A pouring nozzle 66 is pressed into the sleeve 64 of slide element 60 by the mandrel 36 through a pressure plate 68 until arms 70 on the latter reach the upper part of said slide element 60, whereupon a positioning nut 56 threaded on a ring member 54 is screwed into contact with said nozzle 66 to support it. A slide plate (72, Figs. 2 and 3) of substantially oval shape is then pressed into the upper part of slide element 60 by the mandrel 36 through another pressure plate (80). A pouring opening (74) lies toward one end of the slide plate (72) and coincides with an extension of the centering mandrel 52. The pressure by mandrel 36 is exerted in its other working position coinciding with the centre of the slide plate (72). The angular position of the arm 30 carrying mandrel 36 is varied by inserting a pin 40 through suitably placed holes 38, 38<SP>1</SP> and 40, 40<SP>1</SP>. The movement of slide element 60 in frame 2 is by a screw in an end wall of the latter bearing on said slide element.
Patent GB-1040167-A (GB)
Title: Complex hydrazones
IPC: C07F17/02
Filed: 1964-08-04
Abstract: 1 - Diphenylmethyl - 4 - ferrocenylmethylene-aminopiperazine is prepared by reacting 1-di-phenylmethyl-4-aminopiperazine with ferrocene carboxaldehyde.  Reaction may take place in an inert solvent, e.g. alcohols, hydrocarbons or water, or in an excess of the aldehyde, at room temperature or higher, in the presence of catalytic amounts of mineral or organic acids.  The product forms non-toxic salts with many organic and inorganic acids.  1 - Diphenylmethyl - 4 - aminopiperazine is prepared by refluxing a diphenylmethyl halide with an excess of piperazine to yield 1-diphenyl-methylpiperazine, which is converted to the 4-nitroso derivative with sodium nitrite and HCl and then reduced using e.g. lithium aluminium hydride. Alternatively 1-diphenylmethyl-4-nitrosopiperazine may be prepared by reacting a diphenylmethyl halide with 1-nitrosopiperazine.