baber/WOPTO huggingface dataset:
Patent GB-731597-A (GB)
Title: Method of and apparatus for manufacturing endless fibro-cement sheets
IPC: B28B1/42
Filed: 1951-09-06
Abstract: 731,597. Making asbestos-cement boards &c. MAGNANI, A. Sept. 6, 1951 [Oct. 4, 1950], No. 21096/51. Class 96. Asbestos-cement &c. supplied at 25 impacts a baffle 23, is stirred at 22, formed into a web S on a longitudinal textile belt 1 with the aid of pressure rollers 11, 12, 13, and a quick-return, travelling suction box 10, the compressed sheet L being wound on a make-up mandrel (not shown) above the couch roll 3 and compacted thereon with the aid of two jockey-rollers pressed downwardly by a hydraulic ram, the wound board being either cut, opened out, and optionally corrugated, or being passed as a pipe over a table and along a chain-and-roller conveyer, the rollers of which rotate and turn the pipes &c. The mandrel cores are extracted and re-used, and the tubes aged and finished in known manner. Suction is cut off for the return traverse of the suction box 10, and the pulp supply is interrupted when the wound board attains the required thickness.
Patent GB-211007-A (GB)
Abstract: 211,007. Kidston, R. March 5, 1923. Supports for articles to be heated.-A trivet 4 extending outwards from the fire is combined with an extension member 6, adapted when in use to lie over the fire, and when out of use to lie under the trivet. In the arrangement shown, the extension 6 slides in runners 5, 7, at the sides of the fire-box and below the sides of the trivet respectively. The ends 5<a>, 7<a> of these runners are curved as shown in order that the extension 6 may, in use, occupy a position approximately level with that of the trivet. The trivet 4 is removably supported by lugs 4<a> which engage recesses in projections 8 on the fire cheeks or adjacent parts of the range.
Patent GB-681116-A (GB)
Title: Electro-magnetic clutches
IPC: F16D27/06
Filed: 1950-08-25
Abstract: 681,116. Friction clutches. POMPES NOEL. Aug. 25, 1950 [Sept. 16, 1949; May 17, 1950], No. 21115/50. Class 80 (ii). Liquid is provided in the casing of an electromagnetic clutch to prevent sudden engagement, the liquid film between the clutch plates being progressively squeezed out, and agitating means for the liquid and air are provided to assist cooling. The engine shaft 102 carries a plate 101 having starting teeth 103, an annular coil 104 and friction rings 105, 106. A counter-plate 107 whose outer periphery is slidably keyed to the plate 101 is provided with corresponding friction rings so that when the clutch is operated a metallic disc 110 slidably keyed to the driven shaft 112 is frictionally gripped. The assembly is enclosed in a casing 113 which is secured to the plate 101 and contains oil which, together with the air in the casing, is agitated upon relative rotation between the casing and a number of vanes formed by slots (Fig. 2, not shown) in a member 116 attached to the disc 110. The agitation assists transmission of heat to the casing 113 until the clutch is fully engaged, when the relative rotation ceases. A fixed surrounding casing 119 has a wall 121 centrally apertured so that cooling air entering at 124 is moved radially outwards by blades 114 on the rotating casing 113 and is discharged at 123. When applied to a vehicle the pipes 124, 123 are directed respectively to the rear and the front of the vehicle so as to reduce the air intake when the vehicle is moving, and thus reduce the power absorbed by the blades 114.
Patent GB-711973-A (GB)
Title: Improvements relating to cranes and the like
Inventor: FRANKLIN ARTHUR ERNEST
IPC: B66D1/26
Filed: 1951-09-07
Abstract: 711,973. Wind reverse drive. PRIESTMAN BROS., Ltd. Sept. 5, 1952 [Sept. 7, 1951], No. 21180/51. Class 78 (5) A winch in which the drum is normally driven forwards by direct gearing from a driving shaft 7, has a reversing drive which comprises a gear train having a reversing gear wheel 16 on the driving shaft and an idler gear 17 jourmalled in a cage 18, said cage being movable to bring the reversing gear wheel into mesh with a second gear wheel 14 which drives the winch. As shown. Fig. 1, hoisting drums 1 and holding drums 2 are mounted freely on their shafts 3, 4 and are forwardly driven from pinion 6 fixed on driving shaft 7 respectively through pinion 5 fixed on shaft 3 and one way friction clutch 9 operated by relay brake 9A, and through a similar pinion arrangement 8, 10, 10A. The drums are reversedly driven, Fig. 2, from said gear wheel 16 by said idler gear 17 which swings about pivot 20 to mesh with gear 14, the gear 14 being clutched to drum 1 through clutch 15 and driving drum 2 through gear 13 and clutch 110. The clutches used may be of the type disclosed in Specification 264,327, [Class 80 (ii)].
Patent GB-359402-A (GB)
Title: Improvements in and relating to high speed vertical shaft drives
IPC: D01H1/244
Filed: 1930-07-14
Abstract: 359,402. Centrifugal machines. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) July 14, 1930, No. 21274. Convention date, July 13, 1929. [Class 23.] Driving, suspending, balancing.-A vertical shaft Sp supporting an underdriven centrifuge, spinning can, or the like, is connected to a rigidly mounted driving shaft w solely through a sleeve h of resilient material, a pin b being passed through both shafts and the sleeve to prevent separation or relative rotation of the parts. The shaft w may, as shown, be constituted by the rigidly mounted shaft of an electric motor or it may be mechanically driven. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the subject-matter of Specification 347,900. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 347,900.
Patent GB-1340763-A (GB)
Title: Glass suitable for thermal tempering
IPC: C03C3/089
Filed: 1971-04-19
Abstract: 1340763 Glass composition PPG INDUSTRIES Inc 19 April 1971 [11 Feb 1970 18 Jan 1971] 21482/71 Heading C1M Thermally tempered flat glass contains in percentage by weight SiO 2  46-75, K 2  or Na 2 O 5-25; CaO 0-15; MgO 0-10; CaO+MgO 0-15; B 2 O 3  and TiO 2 , and has a difference between softening point and strain point not in excess of 350 F. The glass preferably contains a combined weight of 2À5 to 22À4 of B 2 O 3  + TiO 2  to impart the strain point to softening point interval thereto. The glass has a rate of specific volume charge which is at least 2À8 x 10<SP>-5</SP> c.c./gm./ F. The glass forming batch may contain small amounts of NaCl, Na 2 SO 4 , Fe 2 O 3  and SO 3 .
Patent GB-336588-A (GB)
Title: Improvements in or relating to the grading of abrasives for use in continuous glass grinding machines, and apparatus therefor
IPC: B24B57/00
Filed: 1929-07-12
Abstract: 336,588. Pilkington Bros., Ltd., Waldron, F. B., and Griffin, J. H. July 12, 1929. Settling, obtaining graded materials by.-In apparatus for grading abrasives for use in continuous glass grinding machines, the rate of flow of abrasive-laden water through the apparatus is controlled at different stages of the grading by automatically discharging excess water at intervals along the grading-tanks. The invention is described in connection with the apparatus shown in Fig. 2 of Specification 336,587 and consists in the provision, immediately before each weir 15, of a trough 18, with a discharge pipe 19, fixed at such a level above the weir as will give the desired head and flow of water over the weir.
Patent GB-675106-A (GB)
Title: Improvements in attenuators
IPC: H01P1/22
Filed: 1949-08-18
Abstract: 675,106. Wire and ribbon resistances; variable contact resistances. WILKINS, S. R., and AUTOMATIC COIL WINDER & ELECTRICAL EQUIPMENT CO., Ltd. June 22, 1950 [Aug. 18, 1949], No. 21491/49. Class 37. In a continuouslyvariable H.F. attenuator the moving arm 14, Fig. 3, makes contact with a wire winding, Fig. 2, the core of which is a thin flat strip of metal such as aluminium anodized or otherwise provided with an insulating covering throughout its length except for one end which has connected thereto at 12a the earthy end of the wire winding. In Figs. 3 and 4 the attenuator or wire winding, Fig. 2, is arranged within a channel-shaped support 13 of insulated metal which is also connected to the earthy end of the wire winding.
Patent GB-761662-A (GB)
Title: Improvements relating to joints between metal and dielectric materials
Inventor: ASHWORTH FRED
IPC: H01L21/58
Filed: 1953-08-04
Abstract: 761,662. Soldering and brazing. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Aug. 4, 1954 [Aug. 4, 1953], No. 21531/53. Class 83 (4). In joining a metal part to a part of dielectric material, e.g. of glass, porcelain or semi-conductive material, the latter is coated with nickel-chromium alloy by thermal evaporation in vacuo and the coating or further metal applied thereto is soldered or brazed to the metal part. The parts should preferably have similar temperature co-efficients of expansion and thus may be of a 28 per cent nickel, 54 per cent iron, 18 per cent cobalt alloy and a borosilicate glass or an aluminous porcelain formed of a mixture corresponding to 3Al 2 O 3 2SiO 2  bonded by a fusible glass. When soft soldering is used the freshly deposited coating may be tinned without flux or a further coating, e.g. of copper or tin may be deposited on the alloy by sputtering, electrodeposition, spraying or thermal evaporation in vacuo. In an example, an 80 per cent nickel 20 per cent chromium alloy is deposited on a glass plate and a copper film is deposited thereon by thermal evaporation, the surface to be coated being kept at 300-450‹ C., and a copper wire is soft-soldered to the copper film by a resin-cored solder. When hard soldering is to be used a thick further coating may be electrodeposited on the alloy coating or on to a further coating deposited on the alloy coating by thermal evaporation. In an example a first film of 80 per cent nickel, 20 per cent chromium and a second film of copper are deposited by thermal evaporation on an alumina ceramic base and the copper is built up to 0.005 inch thickness by electrodeposition. A metal disc is then soldered to the copper with a solder of composition silver 49-51 per cent, copper 14-16 per cent, zinc 15-17 per cent, and cadmium 18-20 per cent. In one embodiment the end of a glass or ceramic tube 2, Fig. 2, is coated as described in the examples and a metal tube 1 is soldered thereto, a ring of solder 6a being melted by an induction coil 7 to form a solder fillet. In a modification, Fig. 5, both the end face and a circumferential surface of a glass or ceramic tube 2 are coated and the tube is soldered into a recess in a metal tube 1 by induction heating. In a further modification the coated end of a glass or ceramic tube 2, Fig. 7, is soldered into a groove 11 in a metal tube 1a, solder being provided as a ring in the groove or as a coating on the grooves surfaces and melted by induction heating. Two ceramic tubes are secured in this manner into perpendicular faces in a metal block.
Patent GB-834392-A (GB)
Title: Phosphorous acid esters
IPC: C07F9/165
Filed: 1958-07-04
Abstract: The invention comprises phosphorous acid esters of the general formula <FORM:0834392/IV (b)/1> wherein R1 is C1-C4 alkyl, X is an alkyl radical substituted by aliphatic or aromatic thioether groups and Y is either -OR1 or the radical of a secondary amine.  X may be the radical R2-S-Alk wherein R2 is a C1-C4 alkyl radical or a phenyl radical and Alk is an alkylene radical containing up to 4 carbon atoms and Y may be the radical -NR3R4 wherein R3 and R4 are p hydrocarbon radicals which together contain a total of 6 carbon atoms or wherein NR3R4 forms a heterocyclic radical. They may be obtained by reacting appropriate O,O - dialkyl phosphorous acid monohalides, e.g. monochlorides, or appropriate substituted amino-O-alkyl-phosphorous acid monohalides, e.g. chlorides with salts, e.g. the sodium salt, of appropriately substituted mercaptans (XSH).  The reaction is preferably carried out in an inert solvent, e.g. benzene, toluene, or ether, and at an elevated temperature, e.g. 30 DEG -70 DEG  C. but with the exclusion of atmospheric oxygen.  The following are typical of the products specified: C2H5SCH2CH2SP (OC2H5)2, C6H5SCH2CH2SP(OC2H5)2, C2H5 (or C6H5)SCH(CH3)CH2SP (OC2H5)2, p.Cl (or CH3) C6H4SCH2CH2SP(OC2H5)2, C2H5SCH2 CH2SP(OC3H7)2, C2H5SCH2CH2SP(OC2H5)N (CH3)2, CH3 (or C6H5) SCH2CH2SP(OC2H5)N (C2H5)2, <FORM:0834392/IV (b)/2> <FORM:0834392/IV (b)/3> C2H5SCH2SP(OC2H5)2 C2H5S.CH(CH3)SP(OC2 H5), and C2H5SCH2SP(OC2H5)N N(C2H5)2.  The products have insecticidal properties (see Group VI).ALSO:An insecticidal composition comprises a phosphorous acid ester of the formula X.S.P(OR1)Y, wherein R1 is a C1-C4 alkyl radical, X is an alkyl radical substituted by aliphatic or aromatic thioether groups and Y is either OR1 or the radical of a secondary amine (see Group IV (b)) and a solid or liquid diluent or carrier.  Specified carriers are talc, chalk, bentonite, clay, water, alcohols, ketones, and liquid hydrocarbons.  The phosphorous acid esters may be used in combination with each other or with one or more known insecticides and/or fertilizers.  Suitable compositions are obtained by mixing the compounds C2H5SCH2CH2SP(OC2H5)2 and C2H5SCH2CH2SP(OC2H5)N (CH3)2 respectively with acetone, adding benzyl hydroxy diphenyl ether as emulsifier and then diluting with water.
Patent GB-737669-A (GB)
Title: Improvements in or relating to clutch mechanisms
IPC: F16D13/02
Filed: 1952-08-28
Abstract: 737,669. Friction clutches. INSTAPRINT CAMERA CO., Ltd., and PEACOCK, W. F. Aug. 28, 1953 [Aug. 28, 1952], No. 21647/52. Class 80 (2). A clutch between the driving motor and the cylindrical shutter 19 of a photographic timerecording camera for use in timing races comprises a helical coil spring 4 embracing cylindrical parts of the driving and driven members, one end 5 of the spring being anchored to the driven member by a screw 6 while the other end has an out-turned projection 7 co-operating with the inturned end 8 of one arm of a lever 22, the other arm of which forms the armature of an electromagnet 25. The magnet 25 is energized automatically by closing of a switch at the start of a race, so as to move the end 8 of the lever, away from the projection 7 and allow the spring 4 to contract, while after the end of the race the lever is moved in the opposite direction, to allow the end 8 of the lever to engage the projection 7 and thus expand the spring 4, by manual pressure on a spring- loaded plunger 27 co-operating with a projection 26 on the lever 22, the latter being then retained frictionally by a blade spring 30. A disc 31 secured to the driven member has a peripheral recess 33 terminating in a radial slot 34, so that the end 8 of the lever cannot be moved inwardly until it is in register with the recess 33, the driven member being finally locked against rotation when the end 8 enters the slot 34.
Patent GB-211803-A (GB)
Title: Improvements in and relating to systems of electric distribution
IPC: H02H7/26
Filed: 1923-08-27
Abstract: 211,803. British Thomson - Houston Co., Ltd., (General Electric Co.). Aug. 27, 1923. Protective systems.-In a distribution system having parallel feeders 10, 11, branching from intermediate points in the windings of normally inactive auto-transformers 6, distributing transformers 13 and protective fuses 16, 17 are included in all the feeder circuits. If the fuses of any feeder are blown as the result of a fault on the consuming side 3, the transformers 6 become active by induction between the parts of each winding and tend to maintain equal loads in the remaining feeders.
Patent GB-1173264-A (GB)
Title: Oxidation of Aliphatic Aldehydes
IPC: C07C51/235
Filed: 1968-05-07
Abstract: 1,173,264. Oxidizing aldehydes. MELLEBEZONS. 7 May, 1968 [26 May, 1967], No. 21651/68. Heading C2C. Aliphatic aldehydes having 4 or 5 C atoms per molecule and a straight or methyl branched chain which may contain a non-terminal olefinic linkage are oxidized in a liquid medium or mixture by passing through molecular oxygen or a gas containing the same. The liquid medium consists of two separate liquid phases, one of which is aqueous. Examples describe the preparation of butyric acid, iso-butyric acid, iso-valeric acid, and crotonic acid.
Patent GB-240989-A (GB)
Title: A new or improved apparatus for supplying motive power for opening or closing valves or for other suitable purposes
IPC: F16K21/16
Filed: 1924-09-13
Abstract: 240,989. Glover & Co., Ltd., T., and Glover, W. R. Sept. 13, 1924. Float valves.-A device for supplying power for a certain period of time and suitable for operating valves or switches to open or close them after a predetermined interval comprises a container for liquid in which is revolubly mounted a box D having a small opening E in one side through which the liquid slowly passes as the box settles under gravity. The box spindle is turned by hand to set the apparatus the liquid being emptied from the box through a, large opening D<2>. The Figure shows a valve L actuated from a cam N on the box spindle through a lever mechanism M, K the valve being placed in a separate casing F to which gas is admitted through a tap H and serving to cut off the delivery of gas to the pipe I. A valve may be fitted in the small opening E to regulate the apparatus.
Patent GB-579267-A (GB)
Title: Improvements relating to vehicle or other door fastenings
IPC: E05B65/22
Filed: 1944-11-06
Abstract: 579,267. Fastenings : door stops. WILMOTBREEDEN, Ltd., and GOUGH, L. Nov. 6, 1944, No. 21727. [Classes 44 and 65 (i)] A fastening, particularly for vehicle doors, designed to prevent rattling, comprises a pair of spring-pressed abutments c pivoted on one limb a, fixed to the dooredge, of an angle plate to embrace a wedge e fixed to the door-post, a sliding latch h engaging behind the wedge to hold the door closed. The latch h slides in a socket on the other limb b of the angle plate, lying on the inner face of the door, and is withdrawn against spring pressure by followers operated by inner and outer handles, one follower l having pin- and-slot connection with a lug n depending from the latch h and the other (not shown) engaging a lateral lug m. All or any of the co-operating faces of the abutments c and wedge e may be flat or slightly convex.
Patent GB-277483-A (GB)
Title: Improvements in or relating to artificial minnows for fishing
IPC: A01K85/12
Filed: 1926-09-06
Abstract: 277,483. Readman, H. Sept. 6, 1926. Artificial bait; spinning tackle.-Artificial minnows are covered with lustrous material such as metallic paints, to which feathers, tinsel, metal foil, coloured papers, transfers, silk ribbon, fabric or cloth are made to adhere, the whole being waterproofed by a celluloid varnish or cement. The bodv is of ichthyoid form, preferably moulded or cast in separate sections for the head and body or, it may be made of wood or metal with or without spinning blades or fins. The body sections 11, 12 and fins 14 are threaded on a tube through which is passed the line carrying the hooks. The fins 14 fit a slot 17 in the body position 11, and are bent to the required angle. A coat of lustrous paint is applied and then a coat of liquid celluloid. While, the last coat is still tacky, feathers or other material coated with similar tacky material are applied, the shape and colouring being selected to imitate a natural bait. A coat of waterproof varnish is applied to the whole surface of the bait. Alternatively, the fins may be made from separate blanks affixed .to a body made in one piece with the head.
Patent GB-904888-A (GB)
Title: An improved grilling device or barbecue
Inventor: BAKER JEFFREY ATHOLL
IPC: A47J37/07
Filed: 1958-07-08
Abstract: 904,888. Grilling stoves; drip trays. HINDMARSH FOUNDRIES Ltd. July 8, 1959 [July 8, 1958], No. 21911/58. Class 126. [Also in Group VI] A grill plate 1 slopes down from its outer edges to a central hole 3 through which melted fat can drain to a fuel box 5. An air vent 6 or vents are provided. The grill plate may have cup-like depressions to grill eggs. Legs 7 may support the plate 1 directly, a separately-supported box 5 being provided.
Patent GB-1142316-A (GB)
Title: Thermionic valves
Inventor: JENKINS HARDING MEREDITH
IPC: H01J19/78
Filed: 1966-05-18
Abstract: 1,142,316. Thermionic valves. STANDARD TELEPHONES & CABLES Ltd. 18 May, 1966, No. 22021/66. Heading H1D. In a triode valve the grid-anode capacitance is increased by the provision of a vacuum capacitor formed by the coaxial arrangement of a cylindrical portion of a grid support 16, a cylindrical shield 27 surrounding and joined to the grid support 16 and a skirt 28 depending from anode 3 and extending between the shield 27 and the cylindrical portion of grid support 16. In the valve shown, the anode 3 with cooling means 4 forms part of the envelope and surrounds the grid 17 and directly heated coiled cathode 10. The cage-like portion 18 of the grid, which is photo-etched from a sheet to produce the pattern of apertures and formed into a hollow cylinder spot welded at 21, is supported at its lower end 22 by welding to a conical grid member 16 which is attached through grid support ring 15 and metal collar 7 to grid connecting ring 14. Ring 15 also supports cylindrical shield 27 which overlaps with skirt 28 so that the vacuum capacitor extends coaxially with the insulating envelope member 15. Posts 8, 9 attached to pins 2 support cathode and a sapphire extension 24 above top part 12 of centre post 9 supports slotted plate 19 and cap 20 which are part of the grid.' Titanium getter plates 13 are secured to the post 12.
Patent GB-1190117-A (GB)
Title: Self-Draining Window Sill
IPC: E06B7/14
Filed: 1968-05-09
Abstract: 1,190,117. Window sill. DE VAC, Inc. 9 May, 1968 [5 Feb., 1968], No. 22145/68. Heading E1J. A window sill has a tubular form 10 with drain holes 42 leading from the upper portion 12, 20, 22, acting as guide for a sliding sash 24, into the interior of the tubular form 10 and a weep hole 44 of rectangular form in the lower outer face portion 26 inclined to the vertical of the part 10 with a valve element 50 of T-section having one arm of the cross bar as an elongated hook 54 which pivots in a channel 37 formed by a flange 28 of the wall portion 26 and front wall portion 18 and has its other arm weighted as at 52 to ensure that the stem of the valve element takes up its position to close the hole 44, except when the weight of water collected in the part 10 presses the valve element away from the part 26 and opens the hole outlet, and wind pressure closes the valve element, the valve member being maintained in alignment with the hole 44 by two spaced apart shoulders 56, 58 crimped to extend outwardly on each side of the valve element.
Patent GB-443000-A (GB)
Title: Method of and apparatus for impregnating pads of cotton or other material with oil or other lubricating agent
IPC: F16N7/12
Filed: 1935-08-06
Abstract: <PICT:0443000/III/1> Lubricating-pads for axle boxes or other revolving parts are obtained by placing cotton or other pads in an air-tight container 1, subjecting to heat, e.g. to 180 DEG  F. by steam jacket 12, withdrawing air and moisture by means of a vacuum pump 6 and impregnating by admitting oil or other lubricant from a reservoir 10.