baber/WOPTO huggingface dataset:
Patent GB-600757-A (GB)
Title: Improvements in or relating to the production of ethyl ether
Filed: 1945-03-27
Abstract: In the continuous preparation of ether, sulphuric acid of 60 to 80 per cent concentration is employed, and such amount of alcohol that the boiling point of the reaction mixture does not exceed 135 DEG  C. The initial composition of the reaction mixture is maintained by the addition of water and alcohol.  In the Figure, alcohol from tank 4 is continuously fed through a scrubber 15 into an etherification vessel 1 containing 68 per cent sulphuric acid. The resulting vapours enter a rectifier 6 and the ether passes through pipe 8 to condenser 9. Water is withdrawn from the bottom of the etherification vessel and gaseous impurities pass to a condenser 11.  Uncondensed gases containing ethylene and saturated with ether vapour are washed in the scrubber 15 with <PICT:0600757/IV(b)/1> alcohol, and after removal of entrained alcohol in a washer 16 are collected.  The wash water from the washer 16 is used in the etherification vessel to maintain the water content.
Patent GB-1515497-A (GB)
Title: Connecting plug for optical cable
IPC: G02B6/38
Filed: 1977-02-24
Abstract: 1515497 Optic fibre coupler THOMSON - CSF 24 Feb 1977 [27 Feb 1976] 07965/77 Heading G2J A bundle of rods, effectively arranged in sets of three all having identical circular sections are arranged to touch and to receive an optic fibre in the tricuspid space so formed. The rods engage the inside of a rigid bushing and a bonding material is used to secure the bushing to the rods and to the optic fibre.
Patent GB-651756-A (GB)
Title: An improved device for use in making calculations relating to thermo-dynamics
IPC: G06G1/00
Filed: 1948-03-18
Abstract: 651,756. Indicators for displaying variable information. McLAUGHLIN, W. March 18, 1948, No. 8096. [Class 118 (i)] [Also in Group XV] An indicator for use in calculations relating to thermodynamics comprises a disc a having a series of circumferentially-arranged headings relating to thermodynamics and radially arranged formulµ covering equations used in solving questions relating to the heading under which they appear, and a mask b with a slot c thereon and rotatable with respect to the disc a so that any formula required can be exposed through the slot c. General information relating to thermodynamics may be provided on the back of disc a and front of disc b.
Patent GB-526345-A (GB)
Title: Improvements in fillers for vinyl resin plastics
IPC: C08K9/02
Filed: 1939-03-14
Abstract: 526,345. Vinyl polymer compositions. CARBIDE & CARBON CHEMICALS CORPORATION. March 14, 1939, No. 8112. Convention date, April 15, 1938. [Class 2 (iii)] Fillers, which are themselves or which contain materials deleterious in their action toward vinyl resins, are treated with a small amount of an aqueous solution of an inorganic base or salt of a weak acid and a strong base and evaporating the excess water prior to use in order to render the fillers more suitable for use. Suitable treating materials include aqueous solutions of sodium hydroxide perborate, silicate, carbonate, acetate, bichromate, thiosulphate or phosphate or corresponding compounds of potassium, calcium, barium, magnesium or strontium. In examples iron oxide, zinc oxide, Prussian blue, French ochre, or red iron oxide are treated with trisodium phosphated sodium hydroxide and the stabilized filler used in conjunction with an interpolymer of vinyl chloride and vinyl acetate.
Patent GB-347720-A (GB)
Title: Improvements in and relating to ruling machines
IPC: B41G3/00
Filed: 1929-11-30
Abstract: 347,720. Ruling-machines. BROADMEYER, A., 1815, State Street, and HICKOK MANUFACTURING CO., W. O., 9th Street, both in Harrisburg, Pennsylvania, U.S.A. Nov. 30, 1929, No. 8224/31. Divided on 348,104. Drawings to Specification. [Class 100 (ii).] A machine for ruling paper sheets comprises a pen-carrying beam rocked by an arm journalled on a support and connected to the beam so that the arm and beam move about a common axis. The beam is substantially balanced about the pivotpins which are journalled in antifriction bearings. Further, the pivot-pins are movable endwise in the bearings to adjust the position of the pens. The arrangement forms part of the machine described in Specification 348,104. Specification 347,717 also is referred to.
Patent GB-899644-A (GB)
Title: Apparatus for anchoring and warping ships
IPC: B63B21/16
Filed: 1959-03-10
Abstract: 899,644. Ships' winches. KOCKS G.m.b.H., FRIEDRICH. March 10, 1959 [Aug. 9, 1958], No. 8277/59. Class 78 (5). On a ship, chain sprockets 21 for controlling the anchor chains and winch drums 8 for controlling the warping cables are linked by clutches so that steam-engines 3 can selectively drive sprockets or drums. Thus two engines 3 drive each drum 8 via gears 6 and 7, and clutch 9, and drive each sprocket 21 via clutches 12, 15 and 23. Each sprocket or drum is enclosed in casing 1.
Patent GB-1305982-A (GB)
IPC: B29C43/02
Filed: 1970-02-20
Abstract: 1305982 Moulding fibre/resin articles UNION CARBIDE CORP 20 Feb 1970 [20 Feb 1969] 8305/70 Heading B5A In a method of moulding fibre-resin articles, a blank comprising a compressed lofty glass fibre mat embedded in a thermoplastic resin matrix is heated to soften the resin and to allow the blank to expand between 2%-500% of its original thickness, and the expanded, softened blank moulded between the dies of a press, the dies being maintained at a temperature below the melting point of the resin. The expanded condition of the blank allows escape of entrapped air during the compression moulding and gives a void free article. Also concentration of the resin at the surface of the article is avoided. The blank preferably contains 10-60% by wt. of fibres and 90-4% by wt. of resin. In one embodiment a fibre-resin blank is expanded in an oven and moulded between the matched male and female moulds of a mechanical press, the press being momentarily stopped at bottom dead centre to allow the formed article to cool to facilitate removal.
Patent GB-707708-A (GB)
Title: Variable speed transmission
IPC: F16H15/54
Filed: 1952-04-01
Abstract: 707,708. Variable-speed gear. GRAHAM L. A., and GRAHAM, R. A. April 1. 1952, No. 8317/52. Class 80 (2) A variable speed transmission comprises a rotary carrier 10 connected to a driving shaft 12, the carrier being provided with bearings such as 18, 20 in which the small ends of inclined planetary rollers 28 are rotatably mounted and held against axial or radial movement, a nonrotary axially movable control ring 34 encircling and contacting the rollers which, at their large ends. carry pinions 38 meshing a ring gear 40 on a driven shaft 42. The bearings 18 20 are axially separated by a perforated sleeve 22 and interior sleeve 24, a hole in the carrier admitting oil from the gear-casing to the bearings; shims may be placed between the right-hand bearings 20 and a shoulder on the carrier to move the rollers along their axes, and thus adjust the contact pressure between the rollers and the control ring 34. The non-rotatable ring 34 is supported by brackets 46. sliding on pins 52 in the gearcase. and is moved axially, to change the velocity ratio, on turning a handle connected to a worm 62, meshing a gear 64 transmitting rotation through a gear 68 to a sector 70, pivoted at 72, carrying fixedly an arm 74, pivoted at 78 to a saddle 76 on the non-rotatable control ring. The axis of rotation 72 of the sector 70 is parallel to and spaced from a plane containing the carrier axis, and is located near to the large ends of the rollers 28, the arrangement being such that the variation of velocity ratio is 'substantially linear with respect to rotation of the worm 62. A calibrated disc 80 indicates the velocity ratio &c. of the gear. The gear casing 56 is moulded in two similar parts; as shown, the right-hand half is bolted to a driving electric motor 16 and the left hand half carries a bearing assembly 44 supporting the driven shaft, the gearcasing containing oil introduced through an opening 59 the bottom half of which is of transparent plastic 61 to facilitate determining the oil level. a drain plug 63 being provided. Specification 596,991 is referred to.
Patent GB-494488-A (GB)
Title: Improvements in and relating to supporting means for drawing boards
IPC: A47B27/00
Filed: 1938-03-18
Abstract: 494,488. Ball joints. GACK, K. March 18, 1938, Nos. 8363 and 8364. Convention dates, March 23, 1937 and Feb. 16, 1938. [Class 65 (ii)] [Also in Group XIV] An adjustable drawing-board A adapted to be clamped to a table or the like is carried slidably by a stem a fixed to a ball f clamped between two socket members h, g, which are secured so as to prevent them turning relatively to one another. The socket member g is integral with a clamp B and the ball is clamped by the member h which is connected by bolts i, i<1> extending through slots t, t<1> in the socket g to a plate l carrying a screw o, the head p of which bears upon the socket member g and carries a lever q which is turned to release or clamp the ball f. To eliminate play between the parts, a set-screw m is provided passing through a thickened part n of the socket member g and bearing against one of the bolts i so as to force both bolts against the walls of their slots t.
Patent GB-756210-A (GB)
Title: Door checks
Inventor: HERBERT KENNETH
IPC: E05F3/00
Filed: 1954-03-23
Abstract: 756,210. Door-operating appliances. TONKS (BIRMINGHAM), Ltd. Feb. 14, 1955 [March 23, 1954], No. 8426/54. Drawings to Specification. Class 65 (1). A spring-closing and check device is attached to a plate of corresponding shape fixed to the door, by means of the heads of countersunk screws projecting from the back of the device engaging keyhole slots of dovetail section in the plate.
Patent GB-599701-A (GB)
Title: Improvements in or relating to the manufacture of seamless hollow articles from natural or synthetic rubbers
Inventor: SAINT-MLEUX CHARLES
IPC: B29C41/14
Filed: 1945-04-05
Abstract: A former for use in moulding rubber by dipping is made of dry polyvinyl alcohol which is capable of softening, becoming plastic, disintegrating or dissolving on contact with hot or cold water.ALSO:A former for use in a process of moulding hollow articles from a dispersion, suspension or solution of natural or synthetic rubber by dipping is made of dry polyvinyl alcohol, and is removed from the formed article by softening, disintegrating or dissolving it in cold or hot water.  The former is preferably coated with coagulant and is dipped one or more times (possibly with intermediate dryings) in latex &c. the coating so obtained being treated (e.g., dried or vulcanized) before removal of the former. In the manufacture of a cushion the former is cut from a sheet of dry polyvinyl alcohol containing less than 3 per cent. acetyl groups and after the dipping and drying is softened in hot water and withdrawn through the inlet pipe of the cushion.  If the polyvinyl alcohol contains more than 3 per cent. acetyl groups it may be removed by dissolving in hot water. The Specification states that dipping formers made of sulphur alone or in admixture with waxes, or made of soapstone, unbaked clay or sodium thiosulphate are known.
Patent GB-1211271-A (GB)
Title: A multiple-spindle drilling machine
IPC: B23B39/16
Filed: 1968-02-21
Abstract: 1,211,271. Multi-spindle machine tool; tool changers. RHEINSTAHL HUTTENWERKE A.G. 21 Feb., 1968 [8 March, 1967]. No. 8505/68. Headings B3B and B3C. A multi-spindle drilling machine comprises a work-table 1, Figs. 1, 2, 3, at least one column 2, a drilling head 3 slidable on the column, a magazine 8 including holders 10 for storing drilling and tapping units 11, and carriages 13, 14, for moving the units along tracks 12 towards and away from head 3. Head 3 is moved by a motor 5 which drives a reduction gear 4, and carriages 13, 14, are driven by electric motors 20, 21, through speed changers 19, a shaft 18, chain wheels 17, and chains 15, 16. This drive may be a common drive as shown, an infinitely variable hydraulic or pneumatic drive, or a separate drive for each carriage. Chains 22, 23, on the carriages provide transverse movement for moving the carriages into the drill head 3, or holders 10, these chains being driven by electric motors 24, 25, and reduction gears 26, 27. Alternatively the drill head can be pushed out by an hydraulic or pneumatic cylinder. In operation, a tool unit 6 is operating on a workpiece. At the end of the operation, head 3 is programmed to move upwardly, until the tool unit changing carrier 7 is aligned with carriages 13, 14, which are adjacent the head 3. The unit 11 required for the next operation is held in carriage 14, and is pushed by way of a pin 29 on chain 23 into carrier 7. Unit 6 is pushed out into carriage 13 and unit 11 is clamped coupled to the drive, and moved downwardly, to carry out an operation on the workpiece. Carriages 13, 14 are moved rearwardly to the position adjacent the tool unit 11 required for the next operation. Pin 28 pushes unit 6 into the holder 10, the new-unit 11 is pushed into carriage 14, and the carriages are moved up to head 3, ready for the next tool change. The units may be interlocked during changing. In a modification, the machine is a horizontal multi-spindle drilling machine having two operating units 6, Fig. 7, each within a magazine. Holders 10 are selected by means of a binary coded combination of control cams, each of the units 6, 11, having a special code, so that the units do not need to be placed in the magazine in any particular sequence. Further work-tables and columns may be provided, and the units may operate at a desired angle.
Patent GB-1196094-A (GB)
Title: Improvements in Fluid Handling Machines, such as Turbines and Compressors
Inventor: BAUGER LOUIS JULES
IPC: F04D19/02
Filed: 1968-02-22
Abstract: 1,196,094. Axial-flow compressors and turbines. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Feb.22, 1968 [Feb. 27, 1967], No.8659/68. Headings F1C and F1T. In an axial-flow multi-stage fluid handling machine, such as a compressor or a turbine, including two interleaved contra-rotating rotors of which the outer rotor comprises rows of blades permanently secured to the inner surface of a shell, the inner rotor comprises axially stacked discs rigid with a common shaft and to the outer periphery of which the inner rotor blades are removably secured through elongated sections each rigid with a root adapted to be secured to the corresponding disc and with a platform rigid with the actual blade and lying in alignment with the inner platforms of the outer rotor blades lying to either side of the inner rotor blades considered, the platforms bounding inwardly the fluid-flow through the machine. The outer rotor comprises blades 2 which may each be provided with an outer platform 5, the platforms of each row of blades being welded together to form a transverse element 6, 7, 8 or 9 of an annular shell 1. The inner rotor comprises blades 4 each having a platform 4a and an elongated inner section 4c terminating in a root 4b. A locking tongue 22 is fitted tightly into an axially extending groove in each root 4b, with a projection 22a entering a peripheral groove 4e. To assemble the inner rotor, the blades 4 of the first row RI, are temporarily supported by an annular assembly jig 23 which may be formed with peripherally spaced slots 23a each engaging a pair of grooves formed in the sides of the section 4c of each blade. The jig 23 is itself supported by its engagement within the row RE 2  of blades 2 of the outer rotor. The rotor disc 24 which is to carry the first inner blade row RI, is then moved in the direction f 4  until it is within the blade row RI. Locking tongues are then turned down at f 5  to secure the blades 4 on the disc 24. The jig 23 is then removed. Any disc associated with the following outer blade row RE 2  is then inserted and secured by locking tongues similar to the locking tongues 22. The operation is repeated for the following stages. The discs of the inner rotor are secured to a central shaft while any discs of the outer rotor may be journalled on the shaft.
Patent GB-469597-A (GB)
Title: Improvements in transmission systems for electrical signals
IPC: H04B3/20
Filed: 1937-03-24
Abstract: 469,597. Two-way transmission. SIEMENS & HALSKE AKT.-GES. March 24, 1937, No. 8732. Convention date, March 24, 1936. [Class 40 (iv)] An echo suppressor at the end of a four-wire line is fed from the output of the receiving amplifier through a transformer of which the primary is connected in the diagonal of a bridge or in series with a valve of high internal impedance so that it receives no current in respect of signals sent intc the transmitting path. In Fig. 2 the receiving amplifier comprises two valves RV1, RV2 in push - pull, the winding W of the hybrid coil being centre-tapped and the primary of the transformer Ts being in the common part of the anode circuits. The valves are biassed so that they operate on the curved part of their characteristics. In another arrangement the primary is in one of the anode circuits only, and the valves RV1, RV2 are of high impedance, preferably valves having a strong negative bias in the absence of signals. In Fig. 3 the primary is in the diagonal of a bridge of which adjacent arms comprise similarly directed rectifiers G1, G2 in series with the parts of the winding W. In Fig. 5, the receiving amplifier RV is normally biassed negatively, and a rectifier combination G3 fed by a transformer TL supplies a counteracting positive bias increasing with the signals. The bias of the transmitting amplifier TV is controlled in a similar way by a rectifier combination G4 and also by the output of the transformer Ts.
Patent GB-665866-A (GB)
Title: Improvements in or relating to devices for controlling the delivery of air into and out of enclosures
IPC: F24F13/16
Filed: 1949-03-31
Abstract: 665,866. Ventilators. INTERNATIONAL ANEMOSTAT HOLDING CO., Ltd. March 31, 1949 [March 31, 1948], No. 8825/49. Class 137 A ventilator comprises an outer conduit, a flared element within it with a mounting permitting axial adjustment, and a detachable connection between mounting and conduit accessible from the larger end of the flared element. A ventilator outlet A comprises an outer conduit 10 and one or more inner flaring members, three 11, 12, 13, as shown, providing air passages a, b, c. The ends 14, 17, of conduits 10, 11 are so shaped that air is caused to flow radially outwardly across the end 14 in a forward position of member 11 and to be deflected forwardly by it when the member is axially retracted. A unit c comprising members 11, 12, 13, and adjusting means is detachably mounted in member 10 by the engagement of tongues 33 at the end of spider arms 23 within pockets 34 in member 10 and retained therein by a free end 36 of a leaf spring 37 which passes through a slit in member 10 and is retractable to release the tongue by pressure on a pushbutton 38. The unit C includes a tubular shaft 18 to which the inner ends of the spider arms are clamped and to the threaded upper portion of which a nut 28 is secured having lugs 29 engaging in slots at the inner ends of levers 25 similarly pivoted at their outer ends to arms 27 carrying the flaring member 11. The spider arms which are V-shaped in section and accommodate levers 25 secured to them by their pivots 26, also carry flaring member 12 by arms 31, and member 13 is clamped between sleeves on shaft 18. Rotation of the shaft by an end knob 30 effects a vertical movement of nut 28 and of member 11 through the levers 25. A damper B mounted behind the outlet A in air duct 16 comprises a rectangular frame 41 hinged at 42 to a housing 40 and including L-shaped vanes 43 pivoted intermediate their side edges to the frame and at their forward ends to a bar 48 which is hinged at pivot 49 to the housing. In the closed position of the damper with the frame within the housing the rear ends 45 of the vanes lie in a common plane; as the frame is swung rearwardly the vanes: separate and facing counter to the direction of the air flow through the duct deflect air uniformly into the ventilator. The damper is operated by a rod 49 having threaded connection with a tube 50 rotatable within shaft 18 as by means of a screwdriver. In a modification provision is made for longitudinal movement of the shaft by expansion of a pressure-operated fluid bellows at its lower end against a spring at its upper end compressed between a nut and the upper of two collars between which the spider arms are confined. Admission of pressure fluid to the bellows may be thermostatically controlled in which case rotation of the shaft as in the first embodiment may be confined to an initial adjustment of the flaring member. In another construction arms rigidly connected to the flaring member replace the pivoted levers 25.
Patent GB-1478562-A (GB)
Title: Electric switch box to be mounted on a handle of an electrically powered machine for example a lawn mower
IPC: H01H9/02
Filed: 1975-03-04
Abstract: 1478562 Mounting switches FLYMO S A 4 March 1975 8841/75 Heading H1N An electric switch box comprises a housing 4 of elastically or plastically deformable material mounted by an integral web 5 wrapped round the tubular handle (1, Fig. 1, not shown) of a lawn mower, the web 5 being located by a knob 13 entering a hole in handle 1, and a cover 6 with internally screw-threaded projections 7, 8 receiving two pairs of screws 9, 10 for attaching the cover to the housing, the screws 10 passing through holes 5B in a flange 5A on the web to retain it in position. The housing is made of an electrically insulating material such as P.V.C., polybutadiene, or vulcanized rubber with or without glass fibre reinforcement, and the switch (not shown) is operated by a trigger (3) projecting from the housing. The screws 9, 10 may be of nylon and may be self-tapping to form the screw threads in the projections 7, 8.
Patent GB-647093-A (GB)
Title: Improvements in the coating of photographic film
IPC: G03C7/24
Filed: 1948-03-25
Abstract: Polyvinyl pyridine is prepared by polymerizing 1-vinylpyridine on a water-bath at 50 DEG  C. in presence of benzoyl peroxide and starch solution.  It is soluble in dilute acetic acid solution and may be used in methyl or ethyl alcohol solution for coating photographic material.  Vinyl quinoline and vinyl acridine may also be polymerized.
Patent GB-325147-A (GB)
Title: Improvements in smokers' combinations
IPC: A24F15/18
Filed: 1929-03-19
Abstract: 325,147. Kerr, W. G. March 19, 1929. Cases combined with igniting appliances and articles for use by smokers; cases formed of separate bodies combined side by side. - A smoker's combination comprises a cigarette case 2 hinged to a casing 1 and having a cover 3 also hinged to the casing 1 which contains in one end a drawer 6 serving as a removable ash tray and in the other end a pyrophoric lighter 7 protected by a cover 9.