baber/WOPTO huggingface dataset:
Patent GB-642392-A (GB)
Title: Improvements in or relating to the hardening of steels and like materials employing high-frequency induction heating
Inventor: THORLEY THOMAS
IPC: H05B6/42
Filed: 1948-04-29
Abstract: 642,392. Annealing; cooling. GENERAL ELECTRIC CO., Ltd., and HUMBER, Ltd. April 29, 1948, No. 11805. [Class 72] A device for quenching steel after heating by high frequency induction is located close to the heating means and comprises a nozzle or ring of nozzles for directing the coolant against the heated workpiece and has the parts adjacent the heating means formed of electrically insulating material: As shown, applied to the continuous hardening of a steel rod 3, the device comprises an outer cylinder 6 and an inner, perforated or slotted cylinder 5, both of electrically insulating material, the former being supplied with coolant through pipes 10 in a brass end piece 7 screwed on to the lower end of the inner cylinder. The upper ends of the cylinders are fixed into a flange top 8 fitted with a guide bush 4, both top and guide bush being of heat resisting insulating material. Mounted immediately above the bush 4 is a high frequency heating coil 2. The Provisional Specification also refers to a square sectioned device formed of electrically conducting material divided into sectors by radial slits, the slits being filled with insulating material. It also refers to the use of graphite or a nickel-chromium alloy for the inner ring.
Patent GB-702933-A (GB)
Title: Organosilicon aldehydes
IPC: C07F7/08
Filed: 1951-05-21
Abstract: Organopolysiloxanes containing aldehyde groups are made by reacting alkenyl-polysiloxanes with carbon monoxide and hydrogen in the presence of cobalt carbonyl as formylation catalyst.  The catalyst may be formed in situ from cobalt powder.  In example (3) an organopolysiloxane, made by hydrolysing a mixture of dimethyl- and allyl-methyl-dichlorosilanes in which 10 mol. per cent. of the organic groups were allyl groups, was heated under pressure with carbon monoxide, hydrogen, ether, benzene, and cobalt carbonyl.  The polysiloxanes used may contain vinyl, allyl or methallyl radicals either alone or with methyl, ethyl, propyl, butyl, phenyl, naphthyl, biphenyl, tolyl, xylyl, benzyl, phenylethyl and cycloaliphatic radicals.  Organosilicon aldehydes (see Group IV (b)) or the above polysiloxane - aldehydes may be condensed with phenols, ureas and melamines to form resins, e.g. a solid product was obtained by heating 10 parts of trimethylsilylpropionaldehyde, 5 parts of resorcinol and 0.1 part of camphorsulphonic acid, and the addition of a little aqueous formaldehyde or paraformaldehyde to the solid yielded a resin.ALSO:An organosilicon aldehyde is made by reacting an alkenylsilane of the general formula: <FORM:0702933/IV(b)/1> where R is a monovalent hydrocarbon radical, R1 is hydrogen or a methyl radical, m is 0 or 1 and n is 1, 2 or 3, with carbon monoxide and hydrogen in the presence of cobalt carbonyl, which may be formed in situ from cobalt powder.  Hydrocarbon radicals specified are methyl, ethyl, propyl, isopropyl, butyl, hexyl, dodecyl, phenyl, diphenyl, anthracyl, tolyl, xylyl, ethylphenyl, methylnaphthyl, benzyl, phenylethyl and cyclo-proprane, -butane, -pentane and -hexane.  The radicals may contain substituents, e.g. chlorine.  The reaction is preferably conducted under pressure and at temperatures from 25 DEG to 150 DEG C.  In examples the formylation of (1) allyltrimethylsilane yielded mono-and di-meric trimethylsilylbutyraldehydes, and (2) trimethylvinylsilane yielded two isomeric trimethylsilylpropionaldehydes and an aldol condensation product.  Trimethylvinylsilaine was made by reacting an ethereal solution of methyl magnesium bromide with vinyltrichlorosilane.ALSO:In catalyzing the formylation of alkenylsilanes (see Groups IV (a), IV (b)) a solution of cobalt carbonyl is made by reducing cobalt oxide powder in hydrogen at 450 DEG C., and then treating the reduced material in the form of a suspension in benzene with carbon monoxide and hydrogen (3 : 1 ratio) under pressure and at 150 DEG C., with subsequent filtration of the resulting darkened solution.
Patent GB-591520-A (GB)
Title: Valve mechanism for supplying compressed air to a compressed air reciprocating engine or the like
IPC: F01B17/02
Filed: 1945-05-11
Abstract: 591,520. Engine valve-gear. OSBORNE, T. N. May 11, 1945, No. 11809. [Class 122 (ii)] In a compressed air engine having valve gear operated by the piston towards the ends of its stroke, the gear comprises two mushroom valves 9, 19 held against the valve facing 12 by spring or other devices 15 and having stems engaging grooves or recesses in rams 7, 22 respectively, whereby they are reciprocated. Ram 7 is tappet operated by the piston at the ends of its stroke by a rod 5 and moves valve 9 to supply compressed air from chest 17 to one end or the other of ram 22, which moves and thereby reciprocates valve 19 controlling supply and exhaust of air to and from the opposite ends of the engine cylinder. Exhaust air from the cylinders of the engine and of ram 22 passes respectively through the hollow heads of valves 19, 9 and communicating recesses 13 guiding the valve stems, to a port 7b in piston 7 leading to the atmosphere.
Patent GB-1182723-A (GB)
Title: Production of a Leno Weave
IPC: D03C7/00
Filed: 1968-03-11
Abstract: 1,182,723. Weaving leno fabrics. RUTI MACHINERY WORKS Ltd. 11 March, 1968 [10 March, 1967], No. 11834/68. Headings D1E and D1K. In a method of producing a leno type weave the leno thread is shed by two vertically reciprocating guides and slips across the standard(s) by movement of one guide while the other is stationary. Shogging above or below the standards depends on whether the stationary guide is above or below the standards. The standards 33-4 pass through healds 31-2 and fixed guides 43, 431 having slots 38, 381 with inclined ends 44-5. The leno thread passes through the fixed guides and through an apertured guide 36, and is engageable with slots 47-8 in guide 46, if it is positioned in the ends 44 or 45. When shed changing has commenced guide 46 is lowered and slips the leno across the far side of the standards. The leno is shogged to the near side by lowering guide 36 after guide 46 has been raised to shed the leno. After an idle stroke of guide 46 it is raised then lowered to shog a leno loop under the standards. The cycle is completed by raising the guides. The slots 47-8 may be wider spaced than the slots 44-5 (Fig. 9, not shown) or the slots 44-5 may be wider spaced than the standards in the open shed position (Fig. 10, not shown), or both. In a further embodiment (Figs. 11-16 not shown) the guide 36 has an aperture 35 in a locally thicker region, projecting into the path of the standards, and the yarn engaging slots are cut in the front face-as seen in Fig. 1- of guide 46. The healds and guides are hung from springs and are reciprocated by levers having followers urged against cams (82-5 Fig. 17, not shown) by the springs.
Patent GB-639322-A (GB)
Title: Improvements in and relating to apparatus for generating controlling voltages, for example for colour television
IPC: H04N9/11
Filed: 1945-05-11
Abstract: 639,322. Television. GENERAL ELECTRIC CO., Ltd., and SARSON, A. E. May 11, 1945, No. 11858. [Class 40 (iii)] A recurring sequence of control voltages 6 which may be used to adjust each of the colours individually in a colour television or colour printing or engraving system are produced by directing a light beam in succession to each of a number of photo-cells, the intensity of the beam to each cell being adjustable. In the known colour television system shown in Fig. 1, a raster produced by a cathode-ray tube 4 scans successive frames of a film 1, these frames being in sets of three different colours. The light passing through the film is received on a photo-electric cell 2 which then controls the beam of a further cathode-ray tube 8, the screen of which is viewed through a series of rotating filters 10. According to the invention a number of separate control voltages are photo-electrically produced for each colour of frame being scanned to control, for example, the brightness of tubes 4 and 8. As shown in Fig. 2, a disc 11 rotating at the same speed and preferably mounted on the same shaft as the filter disc 10 has cut in it sets of angularly and radially spaced slots a<1>, b<1>, c<1>; a<2>, b<2>, c<2>, &c., three sets being shown in the embodiment. The slots co-operate with radially-spaced slots 15<1>, 15<2> and 15<3> in a fixed plate 15, one of these plates being aligned along each of radii a, b, c, but only one being shown. When, for example, the red frame is illuminated slot a<1> is aligned with fixed slot 15, and slots bl and c<1> with similar slots in other plates permitting the passage of light from a source 12 to a photo-cell 12 which may control the anode voltage of a valve. When a green frame is illuminated, slot a<2> may be aligned with slot 15<2>. By varying the light transmission of each slot, for example by filters or optical wedges, the control voltages derived are capable of individual adjustment. In a further embodiment (Fig. 5, not shown) each slot of the plate 15 is illuminated by a separate lamp which may be resistance dimmed. It is stated that the disc may be replaced by a rotating drum or a rotating mirror system.
Patent GB-1352491-A (GB)
Title: Variable reluctance pressure transmitter
IPC: G01L9/00
Filed: 1971-04-28
Abstract: 1352491 Inductors AMETEK Inc 28 April 1971 [29 April 1970] 11901/71 Heading H1T [Also in Divisions G1 and F2] A variable induction device for use in a pressure transducer (see Division G1) comprises a magnetic armature 19 movable within a pair of coils 14, 15, which are provided with magnetic pole members 16, 17, 18. A flexible member 23 retains the armature within a coil cup 25, and a vent 38 provides a passage to the underside of member 23. Adjusting coils 50, 51 (Fig. 2) which are connected in series with coils 14, 15, are mounted, together with a resistor 56 and thermistor 57, on the cup 25 within an outer casing.
Patent GB-1070040-A (GB)
Title: Improvements in or relating to hardfacing rods and electrodes
IPC: B23K35/368
Filed: 1965-03-22
Abstract: 1,070,040. Welding by fusion; making electrodes. EUTECTIC WELDING ALLOYS CORPORATION. March 22, 1965 [Aug. 31, 1964 ], No. 11972/65. Headings B3A and B3R. A tubular welding rod, e.g. an electrode or a filler rod for flame welding, comprises a core of material containing particles of refractory carbide in a steel tube composed of 0À15 - 0À3% C 0À15 0À4% Si 0À9 - 1À5% Mn balance Fe. The tube is formed from a strip and may be coated on one or both sides with Cu, Ni, St, or Cr. The tube preferably constitutes 15-40% by weight of the rod. The core consists of carbides of Cr, Mo, W, V, Ta, Nb, Zr, B, Ti or Si with 0-10% ferro-alloys of W, Si, Mn, B, Mo or Zr, and 0-5% deoxidizers, e.g. silico-manganese. The rod is made by forming a strip into a U -section by rolls and as the strip passes a filling station filling the strip simultaneously from hoppers containing the separate ingredients. The filled strip is closed by crimping and closing rolls and a cut-off device cuts and closes off the severed ends.
Patent GB-759411-A (GB)
Title: Improvements in or relating to magnesium base alloys
Inventor: WHITEHEAD DEREK JAMES
IPC: C22C23/00
Filed: 1954-04-26
Abstract: A magnesium-base alloy having a high resistance to creep and good corrosion resistance has a composition within the following range: .Zr.0,2 - 0,7.per cent .Mn.0,1 - 0,3.per cent .Zn.0,5 - 5,0.per cent .Th.1,0 - 6,0.per cent .Mg.the balance. The alloy may contain, in addition, one or more of the following elements: .Rare earth metals.up to 4,0.per cent .Be.up to 0,1.per cent .Ca.up to 0,2.per cent .Hg.up to 3,0.per cent .Pb.up to 1,0.per cent .Tl.up to 1,0.per cent .Li.up to 1,0.per cent .In.up to 1,0.per cent .Te.up to 0,1.per cent Specifications 511,137 and 733,221 are referred to
Patent GB-1260407-A (GB)
Title: Method and suction dredging installation for conveying dredging spoil
Inventor: KONING JAN DE
IPC: E02F3/90
Filed: 1969-03-06
Abstract: 1,260,407. Suction dredging installations. INGENIEURSBUREAU VOOR SYSTEMEN EN OCTROGEN SPANSTAAL N.V. 6 March, 1969 [6 March, 1968], No. 11992/69. Heading E1F. A suction-dredging installation is controlled to operate at maximum efficiency either manually or automatically in response to an indication or signal of a magnitude dependent upon the pressure differential measured between the intake and outlet of the or one of suction pumps 2 coupled to the suction pipe 4 of the installation. Means for differentiating the pressure difference with respect to time may be included in a signal-emitting system associated with the means for recording the pressure differential, and the signal emitted from the system may control means to allow of adjustment of an appropriate part of the installation, e.g. a suction head as specified in Specification No. 1,089,081, to maintain the desired maximum efficiency.
Patent GB-927223-A (GB)
Title: Improvements in arbors for milling cutters
Inventor: DERBYSHIRE GEORGE CECIL
IPC: B23C5/26
Filed: 1959-04-09
Abstract: 927,223. Arbors. FRANK GUYLEE & SON Ltd. April 7, 1960 [April 9, 1959], No. 12083/59. Class 83 (3). A milling cutter arbor comprises a body 10 having a frusto-conical bore portion 13 and screwed-bore portions 12, 24, an interchangeable insert 16 located in the bore 13 by a tapered shank 15, a ring 19 on the parallel portion of the insert having dogs 20, 22 for driving engagement with recesses in the body and a cutter 18 respectively. The cutter, driving ring and insert are clamped in the body by a drawbar 25 screwed into the screwed bore 24. The insert may be interchanged with inserts having parallel portions of greater or lesser diameter than the insert 16 when using different cutters, and the screwed bore 24 may be replaced by an internally screwed bush secured in the body by a grub-screw.
Patent GB-412020-A (GB)
Title: Improvements in dyeing, washing and like apparatus
IPC: D06B5/00
Filed: 1933-04-26
Abstract: <PICT:0412020/IV/1> A machine for dyeing &c., of the kind in which the goods are subjected to a constantly reversing direction of flow of liquor, comprises a chamber divided horizontally by a perforated floor, concentric flow and return pipes connected to the bottom of the chamber below said floor, a double-spout member over the mouths of said pipes to expose different parts of the floor at different times to an upward flow of liquid, means producing relative rotation between the floor and the spout member, and means to circulate liquor through the pipes and chamber.  As shown, the spout member s is provided with a V-shaped gap s<1> through which liquor, forced up the inner pipe g by a propeller m, is discharged into the chamber a below the stationary floor b.  The hood is arcuate in shape and has an arcuate open-ended channel s<2> through which some liquor returns into the outer pipe h and is recirculated by the propeller.  The spout is rotated by a shaft r so that the direction of flow of liquor at a given part of the floor is constantly changing.  Vanes t fixed to the spout extend to the chamber wall.  One or more impulse pumps, e.g. comprising a cylinder having an open end uppermost and a piston moved slowly downward and quickly, by a compressed spring, upward, may be placed below the floor or cage.  A different form of rotating spout is described, which covers the whole of the openings of the pipes and from which two spouts project in diametrically opposite directions.  A perforated cage may be provided in place of the perforated floor.  The direction of rotation of the propeller may be changed periodically.  The screw propeller may be positioned in the pipe h and may be replaced by a rotary or reciprocating pump.
Patent GB-568741-A (GB)
Title: Improvements in gimbal and other bearings
IPC: G01C19/16
Filed: 1943-07-27
Abstract: 568,741. Hinges &c. GLENNY, A. P., and SPERRY GYROSCOPE CO., Ltd. July 27, 1943, No. 12207. [Class 65 (ii)] [Also in Group XXXIV] A bearing for oscillatorv or rotary movement comprises only a flexible element 9 mounted on one member 3, 4 under tension to form an axle for the other member 8. The element 9 may consist of a piano wire of 25 gauge and may be stationary or movable. It is secured by studs 11 to supports 12 carried by the legs 3, 4, one of which is formed as a spring blade to keep the wire taut. Member 8 has a bore 10 conically or spherically flared, and may be located endwise by an arm provided with pin-point or ball-bearings associated with the members 3, 4.
Patent GB-413096-A (GB)
Title: Improvements in or relating to endless track mechanism for vehicles
IPC: B62D11/08
Filed: 1933-04-27
Abstract: 413,096. Endless - track vehicles; driving and steering gear. MAcDOWALL, C. W., 96, Whittagreen Terrace, Newarthili, Lanarkshire. April 27, 1933, No. 12288. [Classes 79 (i) and 79 (ii).] A four-wheeled tractor is converted to an endless-track one, and power transmission mechanism provided between the power unit and the track sprockets is carried by an extension frame extending rearwardly behind the tractor body from the usual draw-bar face, so that the conversion transmission mechanism may be accommodated mainly behind the body instead of being located on each side between the body and the adjacent sprocket. The distance between the track centres may be thus reduced to 28<11>. In the construction shown the tractor wheels 80, 81 are removed and the tractor is supported on endless tracks 19. A transverse shaft 21 is housed in a casing or extension frame 11 attached to the drumbar face 13 of the tractor body 15 and is driven by a tail shaft 25 through bevel gears 24, 23. The shaft 21 drives the track sprockets 17 through dog-clutches 27, 29 and pinions 32 gearing with internally-toothed wheels 34 fixed to the sprockets. Steering is effected by disconnecting one or the other of the clutches and subsequently applying a brake 63 to the disconnected side. Each clutch comprises a slidable sleeve 28 loose on the shaft 21 and formed with a brake member 61 at one end and with triangular teeth 29 at the other end adapted to engage similar teeth 27 on a sleeve 22 fixed to the shaft. The sleeve 28 is always converted to its pinion 32 by fingers 33 and is normally pressed into engagement with the teeth 27 by a spring 30. The sleeves are shifted axially by means of pins 42 eccentrically mounted on short vertical shafts 43 having lugs 44 engaged with lost motion by lugs 45 formed on arms 46 carried by vertical shafts 48 controlled by the steering shaft. When the steering shaft is rotated one of the shafts 43 is rotated and its sleeve 28 is moved to disengage the clutch. Further movement of the sleeve brings the brake member 61 to engage the fixed brake surface 63.
Patent GB-637645-A (GB)
Title: Improvements in optical systems comprising a spherical mirror and a correcting element
IPC: G02B17/08
Filed: 1946-04-24
Abstract: 637,645. Optical systems. NAAMLOOZE VENNOOTSCHAP OPTISCHE INDUSTRIE DE OUDE DELFT. April 24, 1946, No. 12360. Convention date, Feb. 27, 1942. [Class 97 (i)] In a system comprising a concave spherical mirror and a correcting element for removing spherical aberration the latter comprises a weak negative meniscus lens C concave to the mirror S and located at a distance from the mirror greater than the radius of curvature thereof but preferably less than three times said radius. The centre of curvature of at least one surface of the lens C and preferably of both surfaces is at a distance of less than “ of the radius of mirror S from the centre of curvature M of the mirror. Both surfaces may be concentric with the mirror. The lens C may be an achromatic doublet, and a positive lens may be located between the lens and the mirror, preferably at the centre M where a diaphragm may also be located.
Patent GB-130730-A (GB)
Title: Improved Construction of Spar, Beam, or the like.
Inventor: MAYROW JAMES JACOB
IPC: B64C1/06
Filed: 1918-07-30
Abstract: 130,730. Mayrow, J. J. July 30, 1918. Framework.-Spars, beams, &c for aircraft are formed from a series of lengths of plain or corrugated material which are assembled to produce a hollow structure somewhat of polygonal section, upon which are applied lengthways auxiliary lengths of U or corrugated shape, so as to enclose therewith a series of triangular, curved, or like tubular spaces. Additional stiffeners, or brackets for the attachment of fittings, may also be provided. Fig. 3 shows one form comprising a four-part foundation 1 - - 4 with the additional parts 12 joined in pairs by a web 13, together with stiffeners 15 and attachment parts 17. The web 13 may fit the foundation; it may be made to enclose additional tubular spaces as shown in Fig. 8, or it may be omitted, and the channels 12 formed separately. Fig. 12 shows a form having substantially an octagonal section and provided with internal webs 14.
Patent GB-1400966-A (GB)
Title: Hydrostatic rotary table
IPC: B23Q1/52
Filed: 1973-03-15
Abstract: 1400966 Work-tables GIDDINGS & LEWIS Inc 15 March 1973 [6 April 1972] 12461/73 Heading B3B [Also in Division F2] A work carrying table is supported by hydrostatic bearings there being a base on which the table is slidable, the table having a surface which is opposed to the surface engaging the base, the surface engaging with another surface formed on a bearing member 99 which is carried on the base by a hydraulic actuator 90. The actuator comprises a flexible bladder and a thin rigid plate 147 thereby defining a pressure chamber to which hydraulic fluid is supplied to preload the bearing member against the bearing surface of the bearing member 99. Pressurized bearing fluid is supplied between the surfaces of the bearings. The table is indexed or rotatably driven in a contour machining operation by a single motor (214) (Fig. 8, not shown) operating through parallel gear drives to reduce backlash. The drives include a pair of (218) (219) that engage a ring gear 215.
Patent GB-397608-A (GB)
Title: Improvements in or relating to knitted fabrics and knitting machines therefor
IPC: D04B9/06
Filed: 1932-04-30
Abstract: 397,608. Knitting. BERRIDGE & CO., Ltd., I. L., KILBOURN, S. L., and MARTIN, C. S., Sanvey Gate. Leicester. April 30, 1932, No. 12487. [Class 74 (ii).] An elastic thread is fed to the cylinder needles only of a rib machine and is knitted by the cylinder needles while the dial needles are rendered inoperative. The elastic thread may, alternatively, be tucked on the cylinder needles and the tuck loops cleared at the next source with non-elastic thread knitted bv both sets of needles. An adjustable dial cam secured to a plate 58 is moved by a cam disc 50 to render the dial needles 82 inoperative when the thread-guide 13 for the. elastic thread 70 is moved to feeding position. The thread-guides 12, 13 are controlled by a pattern drum 40, and the cam disc 50 is rotated in timed relation with the drum 40. Specification 340,652 is referred to.
Patent GB-1169820-A (GB)
Title: Hydrodynamic Torque Converter
IPC: F16H61/60
Filed: 1967-03-17
Abstract: 1,169,820. Hydraulic torque converters. FORD MOTOR CO. Ltd. 17 March, 1967 [18 May, 1966], No. 12515/67. Heading F2C. In a hydrodynamic torque converter comprising an engine driven impeller 26, a turbine 36 driving a usual planetary gearset (not further described), and a reactor 60 reacting on a oneway brake 84, each reactor blade comprises a leading part 64 and a trailing part 62 individually pivoted about pins 68, 66 respectively, to take up angular positions determined by reactor in flow direction to reduce reactor and shock losses. The parts 64, 62 have a pin-andslot 76, 78 connection, rotation of part 64 causing rotation of part 62 in the opposite direction between two stop positions 80, 82.