baber/WOPTO huggingface dataset:
Patent GB-265095-A (GB)
Title: Improvements in machines for the reproduction of hollow pieces and the like
IPC: B27M3/20
Filed: 1926-09-15
Abstract: 265,095. Amann, P. June 4, 1926. [Convention date]. Carving.-In a machine for copying hollow articles the work and the pattern are mounted in cradles 17, 18, which are mounted to rock and slide on a transverse axle at the rear of the machine behind the cutter 3 and the tracer 4, which are directed to the rear. The axle 14 is supported by levers 7, 9, which may be rocked by a handle 11 to raise and lower the axle 14. A transversely-pivoted hand lever 19 is provided by means of which the, cradles are operated. The sliding of the candles is similar or opposite, according as a pin 21 is used to connect the cradle 18 by a socket 22 directly to a rod 16 attached to the cradle 17, or to connect a link 23 with the end of the lever 19. Springs 26, 27 are provided to support the parts. The cutter 3 is driven at high speed by enclosed worm gearing, and is suported by the ball bearing shown in Fig. 11, comprising two inner ball races supporting sleeves 39, 40 which bear on the casing by ball races 43, 44. In order to use the machine for producing a hollow article from a solid model, the latter is first moulded in plaster in the cradle 18, as shown in Fig. 8. The model being removed and inserted in the cradle 17, the plaster mould is then used as a pattern in conjunction with a tracer of extra thickness to hollow the original model.
Patent GB-353704-A (GB)
Title: Improvements in and relating to the liquifaction of chlorine
IPC: C01B7/01
Filed: 1930-07-29
Abstract: 353,704. Liquefying chlorine. KREBS & CO., GES., 29, Lusienstrasse, Berlin. July 29, 1930, No. 22803. Convention date, Dec. 14, 1929. [Class 8 (ii).] Chlorine gas mixture is fed at say 4 atm. to a condenser 1. The liquid formed is fed through a pipe 5 to a collector 4 ; the gaseous residue is fed through the same pipe or a pipe 18 to the collector. The gases rise through a trickling vessel 8 and tubes 7 wherein further chlorine is liquefied to a vessel 13, and escape through a valved outlet 14. The liquid is partly expanded through a valved pipe 10 to the space surrounding the tubes 6, which it cools, and is returned as gas to the compresser mixed with fresh electrolytic gas.
Patent GB-366448-A (GB)
Title: A double operating steam engine cylinder
IPC: F01L29/04
Filed: 1930-07-30
Abstract: 366,448. Steam locomotives. REYNECKE, W. A., Schmidt's Buildings, Post Street, Windhoek, South-West Africa. July 30, 1930, No. 22968. Convention date, Aug. 7, 1929. Void [Published under Sect. 91 of the Acts]. [Class 79 (i).] The cylinders are situated in a central position on either side of a locomotive, and each is connected by means of a double pistonrod 3 to two sets of coupled wheels A .. F fore and aft of the cylinders. The piston-rods are connected to cross-heads 10 which by rods 6 drive crank pins 11. Coupling-rods 5 connect the wheels. To permit the negotiation of curves the wheels A, F or C, D are formed without flanges. The slide valves are operated by Walschaert or other gears 8.
Patent GB-682897-A (GB)
Title: Improved magnetic powders and method of making the same
IPC: H01F1/24
Filed: 1950-09-19
Abstract: A process of preparing magnetic powder for magnetic cores having high resistivity and low power losses when operating at very high frequencies comprise impact milling a mixture of carbonyl iron powder, subject to excessive cluster formation, the particle size range of which does not substantially exceed a diameter of 5 microns, with a cluster - penetrating material which forms a solid, non-conductive, inert particle-separating deposit on the particles, the amount of the cluster-penetrating material being such as to yield the deposit in an amount from 0.2 to 5 per cent of the weight of the iron powder, and continuing impact milling of the mixture until the resulting powder has an apparent density when dry of at least 2.3 grams per c.c. and the deposit is uniformly distributed throughout the mixture.  The carbonyl iron powder may be produced directly by thermal decomposition of iron carbonyl in such a manner as to have a weight average particle diameter of not more than 4 microns, e.g. from 2 to 4 microns. The cluster-penetrating material may be a powder, e.g. a silicate (e.g. silica dust or colloidal clay), or a metal oxide or sulfide, the particles of which have an average diameter less than 1/10th of the average diameter of the iron particles and less than 0.1 micron.  Particle-separating materials also include glassy resins, e.g. solid silicones, which can be mixed with the carbonyl iron powder in the form of a solution in a volatile solvent, evaporated before impact milling or during the initial stage thereof to leave a solid glass film of resin on the particles which is pulverized by continuing the impact milling of the powder in the dry state.  Normally solid fatty or waxy materials of high melting point, e.g. stearic acid, palmityl alcohol, may be used or use may be made of phosphoric acid or propionic acid especially in the presence of an organic solvent.  The impact-milled powder is thoroughly mixed with a liquid particle insulating composition which forms an insulating coating on the individual particles. The composition may be a solution of 0.5 to 2.5 per cent of phosphoric acid in a volatile organic solvent, or an aqueous solution of an alkali metal silicate, the solvent being evaporated after mixing the solution with the impact-milled powder.  The mixing can be caried out by convetional tumbling or by further impact milling.  The resulting powder is mixed with 3 to 10 per cent of its weight of a binder, e.g. a resin or an alkali metal silicate, and moulded under pressure to the desired shape to form a core.
Patent GB-719082-A (GB)
Title: Improvements in or relating to self-loading transporting devices
IPC: B66F9/19
Filed: 1951-10-03
Abstract: 719,082. Fork lift trucks; bottom discharge skips. RODMAN, S. E. Sept. 29, 1952, [Oct. 3, 1951.] No. 22985/51. Classes 78 (3) and 78 (4). A self loading transporting device of the kind in which slide members movable towards and away from each other by hydraulic means are capable of having secured to them load engaging members; has a loading bucket separate parts of which, instead of said load engaging members, are secured to the slide members, movement of the slide members serving to open or close the bucket. A squeeze clamp mounted on the lifting carriage i of a fork lift truck having a tiltable mast 2 is modified to form a pair of opening doors at the base of a loading shovel also mounted on the lifting carriage. The normal hydraulically actuated clamp jaws are replaced by a pair of L-shaped plates 15, 16, braced by brackets 17, 18 and struts 19, the horizontal portions of plates 15, 16 when in their closed position constituting the base .of an open fronted bucket which comprises a pair of side plates 11, a rear plate 11a, a pair of carriage engaging lugs 12, 13 and a front lip 14 having a channel 23 in which the members 15, 16 slide. This lip is braced to the rear plate 11a by struts 21, 22, which, when the plates 15, 16 are closed, are supported on the struts 19; pins (not shown) being provided on the struts 19 to engage holes in the plates i 1 and so increase the rigidity of the bucket. The clamp actuating mechanism comprises a pair of hydraulically inter-connected rams 3, 5 as described in Specification 709,427. The Specification states that the apparatus may be mounted on a truck, tractor or endless track or track laying vehicle.
Patent GB-788248-A (GB)
Title: Gas-heated grilling apparatus
Inventor: BOYCE HARRY HOWARD
IPC: A47J37/07
Filed: 1955-08-10
Abstract: 788,248. Grilling stoves. RADIATION, Ltd. June 21, 1956 [Aug. 10, 1955], No. 23021/55. Class 126 A gas-heated grilling stove comprises a box shape body a, a burner b and grill frets c mounted in the upper part of the body, a sheet metal flame shield d above the burner and grill frets, a funnel f above and spaced from the flame shield d and an outer canopy h spaced from the funnel f. Central combustion product outlets are formed in the flame shield d, funnel f and canopy h. and the air spaces between them keep the outer canopy h cool. The body a may be open at the front or may have a door.
Patent GB-914084-A (GB)
Title: Delay electric primers
IPC: F42B3/16
Filed: 1961-06-27
Abstract: 914,084. Electric blasting detonators. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. June 27, 1961, No. 23207/61. Class 9 (1). In an electric delay detonator having two metal casings, one within the other, the inner case 4 has a perforated end wall and contains: igniting head 3, metallic spacer 11, delay element 5 and a filter device 6 to prevent slag but allow flame to pass, and the outer case 7 contains, in addition to the inner case 4, a spacer 8 and primary and secondary charges 9, 10. The filtering device may comprise one or more discs of gauze (0.040 to 0.125 mm.) or a diaphragm of metal M which grooves are provided to form a labyrinth which permits the passage of flame, but prevents the passage of slag. The tube wall thicknesses are so chosen that the casing 4 is not fractured.
Patent GB-180975-A (GB)
Title: Improvements relating to automatic electric couplings
IPC: B61G5/06
Filed: 1921-09-01
Abstract: 180,975. Westinghouse Air Brake Co., (Assignees of Woernley, H. F.). June 1, 1921, [Convention date]. Drawings to Specification. Couplings, automatic.-In an electric coupling mounted on a car coupler of the " tight lock " type, mechanism for projecting a contact-carrier into engagement with another on a counterpart coupling is stressed independently of the coming together of the couplings, for example during uncoupling, so that no resistance is set up by such mechanism tending to prevent close coupling. The electric couplings are made when the car couplers are fully engaged. A handle mav be used to compress the resilient mechanism. Specification 140,970, [Class 38 (i), Electric couplings &c.] is referred to.
Patent GB-692805-A (GB)
Title: Reciprocating pedalling mechanism for the continuous drive of bicycles and like vehicles
IPC: B62M11/06
Filed: 1950-09-25
Abstract: 692,805. Ratchet gearing. HAVET, A. L. Sept. 25, 1950, No. 23415/.50. Class 80 (iii). [Also in Group XXXI] In a pedalling mechanism for bicycles and like vehicles comprising two independent pedal cranks 22, 23 having rotary axles 4 which are rigid with geared pinions 5, 6 so that the cranks can turn in opposite directions, a toothed wheel 12 is driven in one direction only by devices on the axles 4. The spindles 4 carry sectors 24, 25 provided with catches 26 which engage a ratchet wheel 27 formed inside a rotary member 11 to which the toothed wheel 12 is secured. Alternatively, the member 11 may be replaced by a member having its inner surface frictionally engaged by shoes 35 carried by sectors 34. Slopes 37, 38 are cut respectively in each co-operating sector and shoe to form races for rollers 36. Each roller has a groove inside which is carried a strap 40 connecting the two. rollers on each sector. Springs 41, 42 bear respectively on each sector 34 and on the strap 40 and urge the shoe 35 outwardly. Spring blades 43 guide the shoes 35 to allow only a movement of the shoes towards the sections 34 or towards the inner surface of a hollow member which is integral with the toothed wheel.
Patent GB-1170857-A (GB)
Title: Stab-in Conduit Couplings
IPC: E21B33/043
Filed: 1967-05-19
Abstract: 1,170,857. Sub-aqueous wells. GRAY TOOL CO. 19 May, 1967 [26 May, 1966], No. 23464/67. Heading E1F. [Also in Division F2] A sub-sea well 10 comprises an outer casing 12 driven to refusal in the sub-sea earth, the casing having a hanger support seat 14 formed in its bore 16 about 20 feet below the mud line 18 to support via a hanger 22 an inner casing string 20, the inter-casing annulus 24 being cemented up to 26, while the outer casing 12 continues up to about 5 feet above the mud line where it terminates in a wedgelike flange 28 which is connected to a riser 30 having a similar flange 32 by a remotely operable clamp 34, as described in Specifications Nos. 757,336, 757,337 and 782,360. The hanger 22 has an annular extension 38 fixed to it by threading 39 and circumferential welding at 40, the extrusion having a bore 42 which enlarges upwardly at 44 to define a sealing surface for co-operation with hard hydraulic packing 78 contained in circumferential recesses 76 formed in the lower end of a stab-in tieback sub 64 including locking slip rings 90 (see Division F2) which is installed on the lower end of a riser 60 to enable the latter to be connected to the extension 38 when, owing to rusting of the extension after a period during which the well may have been abandoned, a more usual threaded connection of a riser as by threading 48 initially provided within the extrusion for this purpose is no longer practicable.
Patent GB-461647-A (GB)
Title: Improvements in or relating to blasting charges
IPC: C06D5/02
Filed: 1935-08-21
Abstract: 461,647. Gas - cooling compositions. TAYLOR, J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Aug. 21, 1935, Nos. 23518/35 and 23094/36. [Class 9 (ii)] A gas-evolving composition, especially for use in a blasting device as claimed in Specification 431,935. comprises a mixture of an alkali metal nitrate and an ammonium salt together with a small proportion (say. 0'5 to 5À0 per cent) of a stabilizer consisting of a solid inorganic material of alkaline reaction, and low solubility in water, and capable of undergoing only slow metathesis with the said ammonium salt, for example an oxide of an alkaline earth metal or magnesium or zinc, or a salt of such metals with a weak acid such as carbonic acid, or a compound of such metals capable of reacting with water vapour such as a carbide. Preferably, the material should have a dehydrating action. Several examples are described. Specifications 399,173, [Group III], and 436,144 are referred to for similar blasting devices and compositions.
Patent GB-362899-A (GB)
Title: Improvement in pattern yarn feeding mechanism for knitting machines
IPC: D04B9/26
Filed: 1930-08-06
Abstract: 362,899. Knitting-machines. SCOTT & WILLIAMS, Inc., 366, Broadway, New York, U.S.A.-(Assignees of Taggart, W. N. ; Manoa, Pennsylvania, U.S.A.) Aug. 6, 1930, No. 23568. Convention date, Nov. 1, 1929. [Class 74 (ii).] A circular machine having dependent yarn guides 33, 331 for supplying an extra yarn at each point in the needle circle where pattern is required, is provided with means for selectively raising needles 77 of a group at one point, means for raising a second selection of the same needles at a second point, and means for wrapping different yarns about the selected needles at the two points. The needle-selecting means and the means for wrapping the yarns about the needles are as described in Specification 362,916. The yarn guides 33, 33<1> are provided with patterning butts 50 and are selected for movement across the needle circle by cams 51, 52 which are vertically adjustable by cams 73. Two wrapping members 27 are provided, spaced apart as shown in Fig. 3, and the yarn guide actuating cams 51, 52 are similarly angularly spaced, so that the second selection of yarn guides is made after the corresponding needles have passed the first wrapping member 27.
Patent GB-777730-A (GB)
Title: Improvements in or relating to safety devices for automatic pilots
Inventor: MEREDITH FREDERICK WILLIAM
IPC: G05D1/00
Filed: 1954-08-13
Abstract: 777,730. Automatic steering control systems. SMITH & SONS (ENGLAND), Ltd., S. Aug. 8, 1955 [Aug. 13, 1954], No. 23654/54. Class 38 (4). The difference between a signal constituting the reference attitude of an aircraft automatic pilot and a signal representing actual attitude is operated on by a specified mathematical differential operator and serves to operate a warning device or disable the automatic pilot when the difference exceeds a predetermined value. The invention is applied to an aircraft automatic pilot in which deviation in rate of pitch, as detected by a gyro 1, from a desired value, set by a controller 3, results in a direct current difference signal being applied to an amplifier 6, the output of which controls a servomotor 7 adjusting elevators (not shown) to maintain the desired rate of pitch. To prevent an undesirable condition of loading of the elevators, direct current signals dependent on the set rate of pitch, from controller 3, and the actual pitch angle, as detected by a separate gyro 12, are supplied to a resistance-capacity network 10, 12 so that a signal representing the difference between the actual and desired rates of pitch operated on by the specified differential operator serves, through a potentiometer 15 automatically adjusted in accordance with airspeed, to operate a warning device 17 or declutch servomotor 7 from the elevators when the difference exceeds a predetermined value.
Patent GB-1213730-A (GB)
Title: Process for the preparation of 5-decene and 3-hexene
IPC: C07C11/02
Filed: 1968-05-17
Abstract: 1,213,730. 5-Decene. PHILLIPS PETROLEUM CO. 17 May, 1968 [18 May, 1967], No. 23686/68. Heading C5E. 5-Decene is produced by (a) catalytically disproportionating propylene into ethylene and a mixture of butenes; (b) catalytically isomerizing the butenes to increase the 1-butene content; (c) catalytically disproportionating the 1- butene into ethylene and 3-hexene; (d) catalytically isomerizing at least part of the 3-hexene to produce 1-hexene; and (e) catalytically disproportionating the 1-hexene into ethylene and 5-decene, which is recovered. Ethylene and 3- hexene may be recovered in part as by-products. At least part of the ethylene produced in (a), (c) and (e) may be dimerized and the dimer mixture added to the butene mixture for isomerization. The effluents from (b) and (d) may be fractionated and the undesired butene and hexene isomers recycled to the respective isomerization steps. Many catalysts are listed but in the example the catalysts used are: disproportionation, tungsten oxide on silica containing small amounts of Na; isomerization, MgO; dimerization, NiO on SiO 2 Al 2 O 3 .
Patent GB-438346-A (GB)
Title: Improvements in and relating to mowing machine cutters
IPC: A01D34/14
Filed: 1935-03-09
Abstract: 438,346. Mowing-machines. EBELING, O., Heessel near Burgdorf, Hanover, Germany. March 9, 1935, No. 23735. Divided out of and addition to 437,084 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 10, 1935. [Class 6 (iii)] The auxiliary blades 5 arranged symmetrically at each side of the central blade 2 of the cutter described in the parent Specification are made of the same width, and similar in size and shape the longer cutting edges of the blades all being directed towards the central blade.
Patent GB-593699-A (GB)
Title: Improved process for the production of olefinic polymers
IPC: C08F110/00
Filed: 1944-11-28
Abstract: A process for finishing solid high molecular weight polymers or copolymers prepared from an isoolefin having up to 8 carbon atoms per molecule alone or in admixture with a minor proportion of a diolefin or polyolefin having up to 14 carbon atoms per molecule at a temperature below - 40 DEG  C., in the presence of a Friedel-Crafts catalyst comprises discharging the polymer and associated low-boiling materials into an agitated liquid flashing medium in which the polymer is insoluble and which is maintained at a temperature well above the boiling point of the majority of said low boiling materials whereby a slurry of polymer in the flashing liquid is formed, stripping the slurry of the low boiling materials under reduced pressure and/or by introducing stripping vapours, separating polymer from the stripped slurry, drying the stripped polymer in a stream of hot air having a velocity of at least 30 feet <PICT:0593699/IV/1> per minute, and compressing the dried polymer.  The specified isoolefin is isobutylene, while polyolefins specified are isoprene, piperylene, dimethyl butadiene, myrcene and dimethylallene.  The reactants, catalysts, solvents and diluents are those disclosed in Specifications 513,521 and 565,974. Referring to the drawing, the polymerization mixture is fed through line 2 and the catalyst through line 3 to reaction vessel 1.  The slurry of polymer produced is withdrawn through line 4 and discharged into flash tank 5, the flashed gases passing through line 6 to recovery and purification means or through line 7 for recycling via line 8.  The polymer passes through line 9 into stripping tank 10, on to a vibrating screen 11, into a dewatering press 12, a hammer mill 14, an elevator 15, an oscillating feeder 16 feeding a conveyer screen 17 and drier 18, preferably of the tunnel type, in which air at a temperature preferably between 160 DEG  and 275 DEG  F. and velocity between 75 and 350 feet per minute dries the polymer.  The polymer then passes to conveying means 19, to an automatic shear 20 for cutting it into small pieces, and thence to compressing means comprising mills 21 and 22 or a steam jacketed 24 extruder 23, after which it is cooled 25 and cut and stacked 26.  Specification 590,595 also is referred to.
Patent GB-747658-A (GB)
Title: Froth flotation process
Inventor: JACOBS DAVID IAN HUTCHINSON
IPC: B03D1/008
Filed: 1952-09-24
Abstract: An aliphatic mono-carboxylic acid diester of the formula R1.COO.R.OOC.R2 is added to mineral pulp as a frothing agent: R is saturated hydrocarbon or oxahydrocarbon chain which may bear alkyl, alkoxy or alkoxy-alkyl substituents and contains 2-10 carbon atoms, and R1 and R2 are alkyl or alkoxyalkyl groups, the same or different, and each contain 1-19 carbon atoms.  Such ester contains a small number of, e.g. seven or less, carbon atoms in the R group when this consists mainly of carbon and hydrogen and when R1 and R2 each contain 10-19 carbon atoms.  Examples include butane-1 : 3-diol diisobutyrate, pentane-1 : 5 diol diacetate, heptane-1 : 7 diol diacetate, 2-methoxy-methyl-2 : 4-dimethylpentone-1 : 5 diol diacetate, 2-methoxymethyl-2 : 4-dimethylpentane-1 : 5-diol di-(3-methoxypropionate), diethylene glycol diisobutyrate and triethylene glycol diisobutyrate.  Other frothing agents may be present e.g. 1 : 1 : 2 : 2-tetraethoxyethane, 1 : 1 : 2 : 2-tetra normal propoxyethane, 1 : 1 : 2 : 2- tetrabutoxyethane, 1 : 1 : 3 : 3-tetranormal propoxypropane, 1 : 1 : 4 : 4-tetramethoxy-butane, and 1 : 1 : 5 : 5-tetraehtoxypentane.  Collecting agents such as ethyl xanthate, dithiophosphates, phosphocresylic acids, diphenyl thiouric, fatty acids and fatty acid soaps, may be used.  These reagents may be employed in the flotation of copper-containing sulphidic ores or ores of lead, zinc, iron, molybdenum, nickel and gold and coal.
Patent GB-1164057-A (GB)
Title: Switch Position Indicating Devices for Electric Cookers
IPC: H01H9/16
Filed: 1967-05-23
Abstract: 1,164,057. Indicators for switches. SIEMENS -ELECTROGERATE G.m.b.H. 23 May, 1967 [21 June, 1966], No. 23995/67. Heading H1N. To give a better indication at both near and distant viewing distances of the switch positions on an electric cooker, each control knob 2 carries an eccentric 14 which positions a pivoted translucent indicator 9 behind a respective transparent panel section 8, thereby varying the area illuminated by a lamp 15 in accordance with the switch position. The edge 10 may also indicate the switch position on a scale at the edge of the panel (Fig. 2, not shown). A single lamp 15 may illuminate a plurality of adjacent panel sections or each section may have its respective lamp.