baber/WOPTO huggingface dataset:
Patent GB-1477492-A (GB)
Title: Process for producing maraging-steel cylinders
IPC: C21D6/02
Filed: 1974-07-29
Abstract: 1477492 Maraging steel KOBE STEEL Ltd 29 July 1974 [27 July 1973 13 Dec 1973] 33449/74 Heading C7A [Also in Division B3] A method of making a maraging steel cylinder comprises drawing a blank of a maraging steel to a cylindrical shape, ironing the drawn blank, and ageing the ironed cylinder. Prior to drawing, the material of the blank is solution heat-treated at a temperature of 600-700C, i.e. at a temperature above that which gives the maximum amount of retained austenite. The strength of the steel is low owing to the austenite but it has good elongation thereby allowing drawing without cracking. The subsequent ironing operation increases the strength of the steel and almost entirely removes the residual stress in it. The strength of the cylinder is further increased by ageing at 450 -550 C, e.g. at 500C for 3 hours. Local ageing may be employed to reduce the drawing stress by heating portions of the blank, either prior to drawing or by heating parts of the drawing dies, Figs. 8, 11 (not shown). Preferred maraging steels have compositions of 0À013%C, 0À03%Si, 0À06%Mn, 0À005%P, 0À005%S, 18À31%Ni, 9À41%Co, 4À94%Mo, 0À69%Ti and 0À131%Al or 0À01%C, 0À05%Si, 0À06%Mn, 0À005%P, 0À005%S, 17À77%Ni, 9À25%Co, 4À88%Mo, 0À74%Ti and 0À11%Al.
Patent GB-638133-A (GB)
Title: Injection molding machine
IPC: B29C45/17
Filed: 1945-12-11
Abstract: 638,133. Injection-moulding machines. CARON, L. J. Dec. 11, 1945, No. 33508. [Class 87 (ii)] An injection-moulding machine comprises a plasticizing cylinder 7, Fig. 2, having a nozzle 114 for injecting moulding material through the fixed die-holding plate 9 and maintained in and retracted from moulding position by a fluid pressure cylinder 130, and a movable die-holding plate 12, Fig. 8, moved by a toggle linkage 23, 29 operated by links 25 and piston rod 28 of a fluid pressure cylinder 2 which is adjustable to adjust the position of the range of movement of the plate 12. Moulding material is fed from a hopper 4, Fig. 2, into a bore 110 and is forced through the nozzle 114 to the die by a plunger 5 operated by a cylinder 6. The cylinders 6, 7 are both mounted on a slide 108 moved to and fro by the cylinder 130. The cylinder 2, Fig. 8, is exteriorly screw-threaded and mounted in twin nuts 46, 52 which are normally screwed together to clamp the cylinder on a plate 16 fixed on the machine frame. To adjust the range of movement of the plate 12 the fluid pressure cylinder 2 is operated to move the plate to moulding position as shown in Fig. 8 and the nut 52 is rotated to unclamp the cylinder by a ratchet handle mounted on a strap 72 surrounding the nut and engaging depressions 76 in the nut. During this movement spring pins 56 on the nut 52 engage bores in the nut 46 so that the two nuts rotate together and engage either side of the plate 16 to adjust the position of the cylinder 2 and the plate 12. The piston rod 28 of the cylinder 2 and the plate 12 are maintained aligned by an ,extension 28 of the piston rod which engages in a cylinder in a bracket 86 mounted on the plate 12. An ejection pin 98 is mounted in the bracket 86 and has one ejection plate 96 adapted to be engaged by fixed pins on retraction of the plate 12.
Patent GB-415919-A (GB)
Title: Improvements in or relating to engine-generator sets
IPC: H02K9/00
Filed: 1933-11-30
Abstract: 415,919. Dynamo casings. GUMPPER, H. D., 3820, Grand River Avenue, Detroit, Michigan, U.S.A. Nov. 30, 1933, No. 33620. [Class 35.] A housing for an engine generator set consists of readily removable side plates and end stampings attached to a sub-frame secured in a bottom pan, and the top plate may also be removably attached to the side plates. As shown, the engine 1 is resiliently supported on the sub-frame 5 carried in the pan 3 and secured to end covers 15, 16, a back plate, and to a readily removable cover 37. The cover extends down to a front plate 30 and the frame of the generator 2 may be integral with the engine block. By removing the flexible connections 28, the radiator 25 with the end cover 15 can be removed without disturbing the engine. A fuel tank also is located within the housing, and the set may be mounted on a truck.
Patent GB-1122743-A (GB)
Title: Improvements in or relating to pressure lanterns
Inventor: JU CHUA KENG
IPC: F21V37/00
Filed: 1966-07-26
Abstract: 1,122,743. Burners. UNION METAL WORKS Ltd. 25 July, 1967 [26 July, 1966], No. 33657/66. Heading F4T. In a pressure lantern having a reservoir from which liquid fuel is passed under pressure to a mixing chamber to be mixed with air the mixing chamber 15 is of generally cuboidal shape and contains a turbulence inducer 27 in the form of a bolt or screw 26 screwed intoa boss 25 and having a flat part overlying the entrance 18 to the chamber, and a partition 28 further increases turbulence. The effect of member 27 can be varied by adjusting its position.
Patent GB-1269275-A (GB)
Title: Semiconductor pressure-electric transducer
IPC: H01L29/84
Filed: 1969-07-04
Abstract: 1,269,275. Pressure-sensitive semi-conductor devices. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 4 July, 1969 [19 July, 1968], No. 33790/69. Heading HlK. Pressure is applied to a rectifying contact of a semi-conductor body doped with a deep level impurity through a flat semi-conductor plate of high resistivity and of closely comparable hardness to that of the semi-conductor body. The body may be of monocrystalline silicon doped with copper, gold, iron, cobalt, or nickel. The lapped and polished pressure-transmitting plate may be of mono- or poly-crystalline silicon having high resistivity as a result of low doping or of doping with silver or gold. Alternative semi-conductor bodies may be made of germanium, gallium arsenide, gallium phosphide, indium arsenide, or cadmium selenide (each doped with a deep level impurity). Though only one contact need be rectifying for D.C. operation, two rectifying contacts are necessary for A.C. use.
Patent GB-891132-A (GB)
Title: Method of producing plush fabric and a warp knitting machine for carrying the methodinto effect
Inventor: MOSIG WILLY
IPC: D04B23/08
Filed: 1958-10-22
Abstract: 891,132. Knitting. WIRKMASCHINENBAU APOLDA VEB. Oct. 22, 1958, No. 33861/58. Class 74 (2). Fall plates are employed in a Raschel machine having a single or two needle beds and ground and plush yarn guides, the fall plates pushing the plush yarns beneath the latches of the needles so that they are cast off with the previous course loops thereby forming fall plate laps in the usual way. In addition the plush yarns are passed around points opposite the needles of a single bed machine to form the plush loops, Fig. 2, or are lapped around the needles of the opposite bed in the case of a two-bed machine, Fig. 4, each bed in the latter case having its own ground yarn. Alternatively, the yarn guides for the plush yarns may be so disposed as to lay their yarns beneath the latches.
Patent GB-1193444-A (GB)
Title: Nickel Alloys
IPC: C22C19/05
Filed: 1967-07-24
Abstract: 1,193,444. Nickel alloys. MARTIN-MARIETTA CORP. July 24, 1967 [Aug. 30, 1966], No.33861/67. Heading C7A. A sulphidation resistant nickel base alloy, which may be used in gas turbines, comprises:- Nb 0À5-2À5% or Ta 1-4% or Nb + Ta 0À5-4% such that 2 x % Nb + %Ta is less than 5. the balance being Ni in an amount of at least 50%, and is so proportioned that the hardening factor:- 1 Î % Cr + 1À1 Î % W + 1À8 Î % Mo + 3À4 Î % Nb + 1À7 Î % Ta + 4À3 Î % Ti + 6 Î % Al, is 55-67, and the stability factor:- 0À66 xNi M + 1À7 x Co M + 4À66 x Cr M + 5À66 (WM + MoM), wherein M represents the matrix atomic fraction for the element concerned, is no greater than 2À5. The alloys exhibit high strength and stability at high temperatures and ductility at intermediate temperatures.
Patent GB-938023-A (GB)
Title: Fluid flow control valves
IPC: F16K5/20
Filed: 1961-09-22
Abstract: 938,023. Valves. GRINNELL CORPORATION. Sept. 22, 1961 [Sept. 26, 1960], No. 33990/61. Class 135. A fluid flow control valve comprises a housing 10, Fig. 1, formed with a through flow passage controlled by a spherical ball valve member 13. A cavity 43 extending transversely to the flow passage is provided in the body having a mouth 40 and sides 41, 42 converging from the mouth. Seat sealing rings 49, 50 are located in the cavity and comprise a disc spring 51, Fig. 3, surrounded by a coating 52 of rubber or plastics material having chamfered edges 53 which contact the ball member. The rings are provided with shoulder portions 47, 48 which seal with the housing when a wedge-shaped member 44 is inserted and provide for spacing the sealing parts from the housing which are flexed by the ball valve member 13. The member 44 may be clamped by a screw 66 or loaded by springs. The ball member is rotated by a spindle 19 formed with a recess 20 which is filled with grease for lubricating and sealing.
Patent GB-838027-A (GB)
Title: Method of producing unwoven bonded fibrous materials
IPC: D04H5/04
Filed: 1956-11-07
Abstract: 838,027. Agglutinated fibrous materials. SCHICKEDANZ, G., [trading as VEREINIGTE PAPIERWERKE SCHICKEDANZ & CO.]. Nov. 7, 1956 [Dec. 2, 1955; Dec. 23, 1955], No. 34063/56. Class 140. A method of producing unwoven bonded fibrous materials comprises introducing into or on to a fleece, the fibres of which lie mainly parallel to one another, threads of fibre either linearly or in curves and at suitable intervals so as to lie transverse, or mainly transverse, to the fibres of the fleece and bonding the threads to the fleece in a suitable manner so as to increase the strength of the fleece. Bonding may be accomplished by application of extraneous agglutinants, by application of solvents which attack the fibres superficially and increase their ability to adhere to other fibres, or by means of thermal treatment or pressure. The fibres of the fleece and of the reinforcing filaments rnay be natural or synthetic or mixtures of natural and synthetic fibres. Specified synthetic fibres are polyamide, polymethane, polyacrylonitrile and polyterephthalic acid glycol esters.
Patent GB-356999-A (GB)
Title: Foot support for performing various gardening operations
IPC: A01G1/12
Filed: 1930-11-12
Abstract: 356,999. Tread-boards for garden use. WRIGHT, N. F., 21, Sydenham Park, Sydenham, London. Nov. 12, 1930, No. 34100. [Class 6 (ii).] A foot support for use by gardeners comprises an elongated wooden tread-board A furnished with uprights B connected to a handle C of wood or metal used for transporting the foot support and also for helping the gardener to balance himself when working. The uprights may fit in slots D.
Patent GB-779887-A (GB)
Title: Improvements in radar and like apparatus
Inventor: WHITE BRIAN DOUGLAS WINTER
IPC: G01S13/78
Filed: 1954-11-24
Abstract: 779,887. Radio navigation. WHITE. B. D. W.. and MURPHY RADIO. Ltd. Nov. 24. 1955 [Nov. 24, 1954], No. 34112/54. Class 40(7) A homing system for a craft radarinterrogator-responder apparatus includes a stroke gate for selecting wanted response pulses, two aerials have overlapping directional patterns which are connected alternately to a receiver feeding a rectifier having no directly connected integrating circuit, means feeding the rectifier output alternatively and in synchronism with the aerial switching to two Miller integrators. each integrator having a grid circuit of long time constant as compared with the switching period, and an indicator instrument connected between the cathodes of the Miller integrator valves. This arrangement reduces random movement in the indicator and provision can be made for the supply of a smooth automatic gain control circuit voltage. As shown pentode 12 is the gate-valve supplied at its grid with the receiver signals and at its suppressor grid with automatic search and lock-on stroke pulses. Signals from the gate circuit are passed hv transformer 13. whose secondary is bridged by rectifier 14 to prevent ringing. and fed to diodes 15 and 16. Diode 15 has no capacitance shunted load resistance connected to it but feeds a switch synchronized with the aerial switch which connects the output alternately to two Miller integrators 17 and 18. The time constants of the coupling elements 24. 26 and 25. 27 are chosen to be long compared with the switching period and to suit the indicating instrument 2R connected between valve cathodes. With this arrangement random movements of the pointer are to a greater extent eliminated and it is stated that the effect of asymmetry in the switching cycle is also reduced. Diode 15 cannot be used to supply the A.G.C. circuit and diode 16 is used for this purpose. Its output is fed through phase reversing triode 29 to potentiometer 31 and 32 from which the required voltage is tapped off. The arrangement may be adapted for use with a beam approach or beacon system. Specification 739,422 is referred to.
Patent GB-211285-A (GB)
Title: Improvement in or connected with automatic weighing machines
IPC: B65B1/32
Filed: 1922-12-14
Abstract: 211,285. Simon, W. G., and Simon, F. R. Dec. 14, 1922. Automatic-feed weighers.-In an automatic weighing machine in which a shutter 1 is operated to close the feed to a sack or pan 4 suspended from a scale beam on the lowering of the beam, the final weighing being completed by a dribble-feed closed by a second shutter 8, the main shutter 1 is made unperforated, and the dribble-feed is effected by a screw or reciprocating device 2. The dribble-feed may be fed through a shaft 6 from the main screw 7, an agitator 9 being provided.
Patent GB-621911-A (GB)
Title: Polymerizing vinyl ethers
IPC: C08F16/12
Filed: 1946-11-18
Abstract: Polyvinyl ethers are obtained by polymerizing vinyl ethers, singly or in admixture, in the presence of an inert organic liquid diluent using a small amount, e.g. less than 1 per cent, of gallium trichloride as polymerization catalyst.  Preferably, the catalyst is dissolved in an inert organic solvent, e.g. petroleum ether, benzene, carbon tetrachloride, carbon disulphide.  The diluent may be a solvent or non-solvent for the polymer formed, specified are n-pentane, propane, butane, benzene, toluene, methylene chloride, chloroform and chlorobenzene.  The inert diluent and solvent may exert a beneficial effect upon the polymerization.  Preferably, the residual catalyst is deactivated by addition of an alkaline quenching agent, e.g. ammonia, and the polymer is stabilized, e.g. by addition of b -naphthylamine, phenyl-b -naphthylamine, ethyl-a -naphthylamine, N:N1-di-b -naphthyl-p-phenylene diamine, p-hydroxy-N-phenyl morpholine or thiourea.  Specified vinyl ethers are vinyl methyl, ethyl, isopropyl, n-butyl, isobutyl, hexyl, octyl, decyl, dodecyl, tetradecyl, octadecyl, cyclohexyl, o-cresyl, m-cresyl, phenyl and a - and b -naphthyl ethers, ethyl-n-propenyl and ethyl isopropenyl ethers, divinyl ether and the vinyl ethers of mono-, di- or tri-ethylene or -propylene glycol, -monomethyl, -monoethyl, -monobutyl, -monophenyl or -monocresyl ether.
Patent GB-936654-A (GB)
Title: Method for the manufacture of purine derivatives
IPC: C07H19/16
Filed: 1959-10-09
Abstract: 6-Mercapto-9-(O-acylated glycosyl) purines or 2-amino-6-mercapto-9-(O-acylated glycosyl) purines are prepared by reacting the corresponding 6-chloro compounds with a nucleophilic thiating agent whereby the chlorine atom is replaced by -SH.  The terms "acyl" and "glycosyl" denote carboxylic acid and mono-saccharide residues respectively.  The thiating agent may be thiourea or a salt of a thiocarboxylic acid, for example, an alkali metal salt of thioacetic or di-thio-oxalic acid.  The acyl groups in the products may be removed by ammonolysis or alcoholysis to give the 6-mercapto-9-glycosyl purine or 2-amino-6-mercapto-9-glycosyl purine. In examples: (1) 6-chloro purine is reacted with mercuric chloride, the resulting chloromercuric derivative is reacted with 1-chloro-2,3,5-tri-O-acetylribofuranose to give 6-chloro-9-21,31,51-tri-O-acetyl ribofuranosyl purine which is refluxed with thiourea in ethanol containing sodium acetate; the resulting crude 6-mercapto-9-triacetyl glycosyl purine is purified by treatment with H2S followed by decolourisation with charcoal and is then reacted in ethanolic solution with NH3 to give 6-mercapto-9-ribofuranosyl purine; (2) inosine is tris-acylated with acetic anhydride and then reacted with phosphoryl chloride to give 6-chloro-9-21,31,t1-triacetyl ribofuranosyl purine which is refluxed with sodium thio acetate (or (3), potassium dithiooxalate) in ethanol yielding the corresponding 6-mercapto compound which may be deacetylated as in (1); (4) inosine is tris-benz-oylated with benzoyl chloride and then converted as in (2) to 2-mercapto-9-21,31,51-tri-O-benzoyl ribo furanosyl purine; (5) guanosine is acetylated, chlorinated and then thiated by the method of (2) yielding 2-amino-6-mercapto-9-21,31,51-tri-O-acetyl ribo furanosyl purine which is deacylated by reaction with ethanolic ammonia.  Specification 924,246 is referred to.
Patent GB-487160-A (GB)
Title: Improvements in and relating to typographical slug casting machines
IPC: B41B11/52
Filed: 1936-12-15
Abstract: 487,160. Type-bar-making machines. LINOTYPE & MACHINERY, Ltd. Dec. 15, 1936, No. 34423. Convention date, July 10. [Class 100 (iii)] Moulds; clamping matrices.- In machines fitted with the low moulds that are employed in conjunction with matrices having deep formative cavities for the casting of characters of large body size, means are provided for enabling moulds of two different heights, such as ordinary and low moulds, to be used in the machine at the same time. (1) The mouldslide 18, Fig. 8, that carries the mould-disc 1, is adjustable with respect to its operating- cam, so that the mould-disc may occupy either of two positions according as a high or a low mould is in use. The slide is operated from a grooved cam 25 through a lever 21, connected to the machine frame by a pivot 22. A roller 23, that engages the cam-groove, is eccentrically mounted on the lever 21, and can be adjusted into either of two positions by means of a draw-rod 33 having an operating-knob 36. (2) The vice-jaws 7, Fig. 5, are resiliently mounted by means of springs 12, so that they may be pushed back by a high mould 2, which may be opposed to them when a low mould is in use, and the mould-disc is advanced in the ejecting position. (3) Abutments 14, Figs. 3 and 4, mounted on the vice-frame, are provided for the moulds when in the ejecting position. The abutments are each formed with a recess 15, so that a high mould 2 seats in the recesses, and a low mould 4 seats on the high parts of the abutments. (4) The vice automatic stop is actuated by an abutment on the mould-disc, instead of by the mould itself, so that its operation is independent of the height of the mould in use.
Patent GB-1439022-A (GB)
Title: Flow device
Inventor: NYSTROM K S
IPC: F15C3/00
Filed: 1973-06-08
Abstract: 1439022 Fluid elements SKEGA AB 8 June 1973 [12 June 1972] 34474/75 Divided out of 1439021 Heading G4P In a flow control device comprising a rigid inlet conduit and outlet conduits 4, 5, deformable diaphragm means 8<SP>1</SP> are provided adjacent the downstream end of the inlet conduit, so that when fluid pressure is communicated to chamber 7 or 7<SP>1</SP> the associated diaphragm means 8<SP>1</SP> assumes a convex form as shown, whereby the controlled stream moves due to the Coanda effect to the outlet conduit adjacent the convex diaphragm means. A shoulder may be provided at the downstream end of the inlet conduit to enhance the Coanda effect. The device may comprise rubber or another resilient or flexible material.
Patent GB-1339197-A (GB)
Title: Objective for night vision apparatus
IPC: G02B13/16
Filed: 1971-07-22
Abstract: 1339197 Optical objectives OPTISCHE WERKE G RODENSTOCK 22 July 1971 [22 July 1970] 34505/71 Heading G2J An optical objective comprises a converging meniscus lens 10, a first diverging meniscus lens, which is a cemented doublet 11a, 11b, a second diverging meniscus lens which is a singlet 12, a bi-convex collective lens 13, two collective meniscus lenses 14 and 15, a negative fieldflatteringlens 16, and a further negative fieldflattering lens 17, the radius of curvature r 17  corresponding to the convex photo-cathode of an image amplifier tube. Optical data are given for the example shown.
Patent GB-365247-A (GB)
Title: Improved apparatus for estimating the moisture content of cereal products and other finely ground materials
IPC: G01N5/04
Filed: 1930-11-17
Abstract: <PICT:0365247/III/1> To determine the moisture content of flour or other finely-ground or liquid material a charge of finely-ground calcium carbide is placed in a lidless container j suspended from the underside of the perforated false bottom c of a lid b fitting tightly on a circular metal container a, and provided with perforations adapted to be closed by a spring clip h.  The space between the false bottom and the top of the lid is filled with coarsely-powdered calcium carbide and glass wool, slag wool, or similar material. After weighing the complete device the flour or other sample is placed in the larger container and the device weighed again.  The carbide in the small container is emptied into the flour, the cover replaced, and the apparatus shaken.  After the evolution of gas has ceased and the apparatus has cooled the device is weighed again; the percentage of moisture in the flour is calculated from the weight of acetylene evolved, a constant for a given type of flour being added to compensate for the non-reacting moisture of that flour.
Patent GB-410881-A (GB)
Title: Improvements in the manufacture of petroleum coke
IPC: C10B55/02
Filed: 1932-12-07
Abstract: 410,881. Petroleum coke. DUFF, W., 341, Upper Richmond Road, East Sheen, London. Dec. 7, 1932, No. 34597. [Class 55 (ii).] A mixture of petroleum coke and mineral matter is obtained by adding to the petroleum to be heated a mineral-bearing material such as coal, coke, or shale, so that the mineral matter is distributed throughout the resultant coke. In an example, a coke containing 10 per cent ash is obtained from a mixture of one part of coal to two of oil, the temperature of the retort being over 400‹ C. Specifications 160,161, [Class 55 (ii)], and 372,561 are referred to.
Patent GB-1271834-A (GB)
Title: Mixed shrinkage yarn
IPC: D02G3/30
Filed: 1969-07-09
Abstract: 1,271,834. Mixed shrinkage yarn. E. I. DU PONT DE NEMOURS & CO. 9 July, 1969 [9 July, 1968; 11 Dec., 1968], No. 34700/69. Headings D1F and D1W. A mixed shrinkage yarn comprises a plurality of continuous oriented filaments of two types having a difference in length, as defined in the Specification, of at least 2% when subjected to boil-off at 4 milligram per denier load, and of at least 3 % when subjected, additionally, to heat setting at 177‹C for two minutes under the same load, the first type of filament consisting of a polyamide wherein at least 50 mole percent of the polymer repeating units are of the formula wherein x is 1 or 2, y is an integer in the range 7 to 14 and R is a hydrogen atom or a methyl radical, the polymer having a transtrans isomer configuration content of at least 40% by weight, and the second type of filament consists of a polymer selected from the group of cellulose esters, different synthetic linear aliphatic polyamides, silk, rayon polyesters, and acrylic polymers. The filaments from the second group preferably consist of cellulose triacetate. The two types of filaments are combined by means of an air jet and the resultant yarn is preferably used for knitting. The yarn contains at least 25% by weight of each of the filaments from the first and second groups of filaments. The filaments may be round or non- round, e.g. trilobal, and may contain heat stabilizers, antioxidants, light stabilizers, ultraviolet light absorbers, delustrants, pigments or dyes. Specific examples are given in the Specification.