baber/WOPTO huggingface dataset:
Patent GB-791906-A (GB)
Title: Improvements in machines for breaking down and mixing foundry sand and the like
IPC: B22C5/04
Filed: 1955-02-28
Abstract: 791,906. Continuous-discharge mixing- machines. BROADWELL ENGINEERING, Ltd., and KEMP, L. R. Feb. 28, 1956 [Feb. 28, 1955], No. 5824/55. Class 86 A machine for breaking down and mixing foundry sand, &c. comprises a skeleton frame 1, a rotary platform or turntable 2 mounted on a vertical shaft 3 between bearings 4, 8 on the frame, fixed inner and outer depending walls 17, 18 defining a channel 23 along which sand from an inlet 22 is carried by the platform 2, and a rotary mixer or mixers 10, 10a, 14, 14a projecting downwardly into the channel 23. The mixers 10, 10a are mounted in bearings 10b on opposed sides of the shaft 3, and each comprises a disc 12 with spaced blades 13 detachably fixed therearound; the mixers 14, 14a are similarly mounted in bearings 15 along a radius at right angles to the diametrical line of the bearings 10b to be rotated in opposite directions, and, preferably, the blades of these mixers are splayed so as to interleave. As shown, the outer wall 18 is fitted with deflector plates 20, 21 for discharging the sand from the channel 23.
Patent GB-891163-A (GB)
Title: Thermal insulation
Inventor: GREENFIELD ISIDORE
IPC: C08K7/04
Filed: 1958-02-24
Abstract: A thermal insulation composition comprises mineral fibres such as asbestos and magnesia or alumina, rock wool or slag wool mixed with water and 2%-25% by weight of the fibres of an aqueous emulsion of polyvinyl acetate or a vinyl acetate copolymer containing 55% by weight of solids.  The polyvinyl acetate may be in the plasticised or unplasticised form but an emulsion containing 5% of a plasticiser such as dibutyl, dioctyl or tritolyl phthalate is preferred.  An internally plasticised vinyl acetate copolymer emulsion containing 60% - 95% vinyl acetate and 5%-40% of a comonomer such as ethyl acrylate, dioctyl maleate, dibutyl fumarate or vinyl stearate is also suitable.  The wet mixture may be applied directly to a body to be insulated and then allowed to set or it may be preformed before setting.
Patent GB-884457-A (GB)
Title: Method of imaging a photolithographic plate and elements for use in the preparation of same
Inventor: HANSON DONALD ELLSWORTH
IPC: G03F7/07
Filed: 1958-02-24
Abstract: 884,457. Lithographic printing plates. DICK CO. A.B. Feb. 24, 1958, No. 5958/58. Drawings to Specification. Class 98(2). A base sheet has a continuous insoluble water receptive, ink repellent, non-absorbent lithographic surface and a continuous layer of a fogging agent across this surface. A silver complex salt solution may be transferred thereto in imaging areas to react with the fogging agent and form an insoluble oleophilic silver image. The base sheet may be of aluminium, zinc or copper and may have been rendered hydrophilic by brushing, silicating, anodising or etching, or may be of paper with a hydrophilic coating as described in Specification 614,155, parchment or lithographic stone. The fogging agent may be colloidal silver or other material as used in the silver halide transfer reversal process, and may be supplemented by soluble sulphide or various metallic salts. Example I and drawings (not shown) are concerned with a treated aluminium sheet coated with potassium thiocyanate as the fogging agent together with sodium sulphide and which may be subsequently coated with lead acetate, and the transfer procedure is described in Example II with indication of use of the product in an offset press. Nine further examples are directed to coating and precipitating compositions for aluminium sheets and a twelfth to a conventional transfer developer. Procedure using a gelatino-silver halide coating directly on the surface of the prepared plate instead of a separate negative is described. U.S.A. Specification 2,352,014 also is referred to.
Patent GB-1078841-A (GB)
Title: Starting aids for internal combustion engines
Inventor: CURZON THOMAS
IPC: F23Q7/00
Filed: 1963-02-14
Abstract: 1,078,841. Electric igniters. C.A.V. Ltd. May 1, 1964 [Feb. 14, 1963], No. 5978/63. Heading F1B. A starting igniter for fuel injection engines comprises a stem 3 with a tapered end 5 projecting beyond the end of a body part 1 and heated by a spirally wound heating element 6 flush with the end of the body part 1. The stem 3 is of reduced section adjacent the end 5 and is supported by a glass seal 7 and an electric insulator 8.
Patent GB-202235-A (GB)
Title: Improvements in or relating to bituminous emulsions
IPC: C08L95/00
Filed: 1922-05-09
Abstract: 202,235. Mackay, H. A. May 9, 1922. Emulsions, making.-Relates to the production of aqueous emulsions of bituminous solids or viscous liquids, e.g. pitch, tar, and native bitumen and asphalt, but excluding bitumens artificially prepared from petroleum. The bitumen is melted, and about 2¢-5 per cent of a fatty acid, or a mixture of fatty acid with resin, or resin oil, or both, is added thereto. A dilute (1-2 per cent) solution of potassium or sodium hydroxide or carbonate is then added at a temperature of 215-225‹ F., the heating being maintained until emulsification is effected. The mixture is agitated throughout the process, and preferably also during the subsequent cooling. Unsaturated acids such as oleic acid may be used. According to the Provisional Specification, the fatty acid may be entirely replaced by resin or resin oil. The emulsions may be used as a binding-agent for road-making or briquetting materials, or as a paint or preservative for metal, stone, wood, concrete, felt, or other materials. Specifications 28178/10, 202,021, 202,230, and 202,231 are referred to.
Patent GB-1278011-A (GB)
Title: Improvements in or relating to stud-welding apparatus
Inventor: STAPLETON PETER LEONARD
IPC: B23K9/20
Filed: 1970-02-07
Abstract: 1278011 Welding by pressure GEORGE TUCKER EYELET CO Ltd 19 April 1971 [7 Feb 1970] 5987/70 Heading B3R A stud welding tool comprises a housing 10 including an abutment 12 for engagement with a workpiece W, a stud holding chuck 32 reciprocable in the housing between a rearward position in which it receives a stud S fed transversely of its axis through an opening in the housing, and a forward position in which a stud held thereby is presented for welding with its end projecting beyond the abutment, the chuck 32 comprising resilient fingers 34 which provide a pocket in which a stud can be gripped, and means for holding the fingers apart when the chuck is in the rearward position to facilitate insertion of the stud into the pocket. Reciprocation of the chuck is effected by a pneumatic piston and cylinder unit 20, 15. A plunger 56 located in a bore of the chuck has a rounded end which co-operates upon rearward movement of the chuck with cam surfaces 38 on the chuck fingers 34 to effect the opening of the fingers; the plunger abuts a rod 54 which passes through a bore in the piston 26 and itself engages an adjustable stop 58, adjustment of which (by screw 64) determines the position and extent of opening of the fingers. To effect welding of the stud to a workpiece W the tool is pressed against the workpiece to engage the abutment 12 therewith, the chuck and stud together with the cylinder and piston unit 26, 15 being thereby pushed back against the pressure of a spring 18; this initiates the action of a solenoid (not shown) which temporarily retracts the chuck to strike a pilot arc. As the stud is forced back against the workpiece by the pressure of a spring 18 full welding current is discharged from a capacitor discharge unit. The studs are fed to the tool by compressed air from a hopper and separating mechanism through a flexible hose 72 having a T-shaped feed passage leading to a similar passage 74 in a block 76 mounted on the tool. Admission of air to the cylinder 15 to retract the piston 26 for insertion of a fresh stud for welding is not initiated until the tool has been removed (thereby breaking the welding circuit) from the previously welded stud.
Patent GB-563329-A (GB)
Title: Improvements in or relating to storage or filing cabinets and to records or articlesto be contained therein
IPC: A47B63/02
Filed: 1943-04-15
Abstract: 563,329. Filing papers &c. BARRON, C. A., and HINDLEY, N. April 15, 1943, No. 6028. [Class 146 (i)] Mounts for photographic negatives, index cards &c. are filed in a drawer or box b, which is divided into sections b<1>, b<2>, b3 each having a raised rib c running diagonally across its floor and engaged by a notch a<1> in the lower edge of each mount or card a to ensure its being filed in correct position. Filing in the proper section of the drawer is secured by movable bars e, which extend over the top of the drawer and engage notches a<2> in the upper edges of the mounts.
Patent GB-899356-A (GB)
Title: Mechanism for converting rotary movement into reciprocatory movement
IPC: F16H21/18
Filed: 1958-02-25
Abstract: 899,356. Converting rotary into reciprocating motion. DIBB, G. R. Feb. 25, 1959 [Feb. 25, 1958 ; (2)], Nos. 6058/58 and 6059/58. Classes 80 (1) and 80 (3). [Also in Group XXVIII]  Mechanism for reciprocating a member 1, such as a plunger of an I.C. engine fuel injection pump, comprises a pair of eccentrics 13, 13a acting on the ends of a rocket arm 10 which is pivotally connected between its ends at 11 to the member 1. The shafts 14, 14a of the eccentrics are interconnected by gearing 15 so that they are driven together, and to enable their phase relationship to be adjusted to vary the stroke of the member 1, the intermediate gears 15 are carried on a floating link 16 which is coupled to links 17, 18 loose on the shafts 14, 14a respectively. Rotation of one link 18 by a squared projection 19 swings the links 16 and 17 to vary the angular relationship of the end gears 15 on shafts 14, 14a. Cranks or cams could be utilized in place of the eccentrics 13, 13a.
Patent GB-612808-A (GB)
Title: Improvements in or relating to methods of preparing zinc resinates and the improved products resulting therefrom
IPC: C09F1/00
Filed: 1944-04-03
Abstract: Clear, permanently refusible zinc and zinc-calcium resinates are made by (1) fusing a rosin containing at least about 7.5 per cent polymer with at least 5 per cent zinc oxide (or equivalent hydroxide or carbonate) in presence of a carboxylic acid or a salt thereof capable of reacting with abietic acid to liberate the acid, followed by further fusing with lime if a zinc calcium resinate is desired, or (2) fusing a polymer-containing rosin with lime, and further fusing with at least 5 per cent zinc oxide (or equivalent hydroxide or carbonate) in presence of a carboxylic acid or salt as above.  The temperature of fusion may be 200-300 DEG  C.  Rosins specified are heat-treated gum or wood rosin or pine oleoresin (e.g. prepared according to Specification 351,583) or polymerised rosins prepared by use of zinc chloride, boron trifluoride, or sulphuric acid, or according to Specification 536,218.  Catalysts specified are acetic, formic, lactic, tartaric, and citric acids or their metal or ammonium salts.  In examples: (1) heat-treated rosin is fused with hydrated lime and then with zinc oxide in presence of acetic acid; (2) a zinc chloride polymerised rosin is fused with zinc oxide in presence of acetic acid.
Patent GB-283367-A (GB)
Title: Improvements in motor tipping wagons
IPC: B60P1/28
Filed: 1927-03-05
Abstract: 283,367. Jennings, J. H. March 5, 1927. Tipping wagons.-In a locking device for tip wagons of the type comprising a pivoted transverse bar mounted on the body and engaging with catches secured to the chassis, the transverse bar C is pivoted directly beneath the floor boards E of the body F. The bar is adapted to engage in slofs J in upstanding brackets G.
Patent GB-708684-A (GB)
Title: Photographic pivoted apertured disc shutters provided with flashlight synchronising devices
IPC: G03B9/70
Filed: 1952-03-10
Abstract: 708,684. Photographic shutters including flashlamp synchronizers. AGFA CAMERA-WERK AKT.-GES. March 10, 1952 [March 31, 1951], No. 6206/52. Class 98(1) In a pivoted apertured disc shutter provided with a flashlight synchronizing device of the type in which a contact pin on the shutter disc is moved to engage a spring contact in a mounting insulated from the disc, the distance between the contact pin and the circuit making portion of the spring contact is adjustable without altering the distance between the said portion of the spring and the axis of the disc. As shown, the exposure disc 1 of a disc and cover blade shutter bears a pin 4 which engages a contact spring arm 5a mounted in an insulated boss 7 to close the flashlamp circuit prior to the opening of the shutter to compensate for the lamp lag. The circumferential position of the spring is adjusted during manufacture by sliding its supporting limb through the boss 7 which is provided with a clamping screw and which also serves as a stop limiting the exposure movement of the disc 1, the supporting limb of the spring 5 being a circular arc centred on the blade pivot. To avoid drain on the flashlamp battery if the lamp filament does not completely fuse when fired and a prolonged exposure is being made, the spring arm 5a has a depression 5b so that while the aperture 3 in the disc 1 is held over the exposure aperture 2, the contacts 4, 5a are out of engagement.
Patent GB-1269110-A (GB)
Title: Combined thread guide and threading device
IPC: D02G1/02
Filed: 1969-12-23
Abstract: 1,269,110. Threading up heaters. BARMAG BARMER MASCHINENFABRIK A.G. 23 Dec., 1969 [27 Dec., 1968], No. 62526/69. Heading D1F. An arrangement for threading up a heating box 2 in a textile e.g. false twist crimping, machine comprises a rod 8 which can be raised or lowered e.g. by a handle 9, a member 5 on rod 8 slidable on a rail 7 and carrying a pivoted bracket 10 normally held in an upright position by a spring 12, a stop 13 to pivot the bracket from its upright position to the position shown when sliding member 5 is moved to its uppermost position and weight 17 to which the filament can be attached and which can be mounted on bracket 10 to be held securely when the bracket is in its upright position but which falls from the bracket when the bracket is in the position shown. To thread up, member 5 is slid to its lowest position, the filament is placed over guides 14, 15 on bracket 10 and the filament is attached to member 17 which is then mounted on the bracket. Member 5 is then slid to its top position wherein the bracket is pivoted, and the weight falls through the heating box 2. Weight 17 may be mounted in a forked member 16 or it may be supported in a cup (Fig. 2 not shown) or it may be supported by a permanent magnet (Fig. 3 not shown). Alternatively it may be supported by an electromagnet which is switched off by the lowering of the bracket.
Patent GB-499920-A (GB)
Title: Improvements in ceramic products and methods of manufacturing them
IPC: C04B38/06
Filed: 1938-02-28
Abstract: Cellular ceramic products are obtained by forming a wet mouldable mixture of argillaceous material, wood or other solid combustible or eliminative particles, a hydraulic setting agent and water, forming the shapes and burning while wet.  The shapes may be burned first in a reducing atmosphere and then in an oxidizing atmosphere.
Patent GB-493258-A (GB)
Title: Improvements in drying devices
IPC: A47K10/48
Filed: 1938-02-28
Abstract: 493,258. Hand and face drying-appliances. LANCASHIRE DYNAMO & CRYPTO, Ltd., and SHAW C. R. Feb. 28, 1938, No. 6331. [Class 81 (ii)] A hand-drying appliance comprises two opposed nozzles 9, 10 supplied with warm air by a motor-driven fan 3 and heating element 4. One nozzle 10 is adapted to swivel into the position shown by chain-dotted lines for the purpose of drying the face.
Patent GB-345065-A (GB)
Title: Means for securing bed-clothes in position
IPC: A47C21/02
Filed: 1930-02-26
Abstract: 345,065. Securing bedclothes in position. ROTTENBURG, L. and ROTTENBURG, F. R., 13, Parkgrove Terrace, Glasgow. Feb. 26, 1930, No. 6348. [Class 52 (ii).] A fitting for securing bedclothes in position comprises two clamping members 1, 2 as shown in Figs. 2 and 3 the inner faces of which are corrugated and two pairs of links 4, 5 and 6, 7 forming toggle joints. Each link is mounted in grooves 4<1>, 51 on the members 1, 2 at one end and the joint of each pair connected by a strap passing under the mattress the strap being anchored to one joint and adjustably clipped to the other.
Patent GB-857096-A (GB)
Title: Internal combustion engine with direct fuel injection
IPC: F02B3/00
Filed: 1958-02-27
Abstract: 857,096. Direct injection engines. BOTTGER, J. Feb. 27, 1958 [Feb. 27, 1957], No. 6432/58. Class 7(3). Fuel is injected into rotating air in a combustion chamber formed in the piston as a body of revolution coaxial with the cylinder axis in at least two jets 4s, 4L, the shorter jet 4s being directed towards an edge 3 at the mouth of the chamber, so that an outer part of the jet impinges at 6 on a surface adjacent the edge 3 outside the combustion chamber and the remainder of the jet impinges on the combustion chamber wall just inside the edge 3, whilst the longer jet 4L is directed against the combustion chamber wall at a portion well below the edge 3. In Fig. 1 the edge 3 is formed at the junction of the combustion chamber wall with the piston head and the area 6 is situated on the piston head whilst in Fig. 2 the edge 3 is formed where the wall 1 meets the transfer passage 1T leading to the cylinder space and the area 6 is situated on the wall of the passage 1T. To facilitate starting the jet 4L is directed towards a portion of the chamber in which the combustion air is relatively stagnant.
Patent GB-690029-A (GB)
Title: A new or improved stock for use in the construction of bristle brushes
IPC: A46B5/00
Filed: 1949-03-10
Abstract: 690,029. Brushes; bristles fixing; stocks. HEATH, Ltd., I., HEATH, I. A., and BRADLEY, W. G. March 2, 1950 [March 10, 1949], No. 6515/49. Class 19. A stock for bristle brushes comprises a metal die-casting or plastic die moulding provided with a plurality of hollow projections the hollow interiors of which are of tapered formation and are open both at their upper and lower ends and form cavities for the reception of the stubs of the bristle tufts, the axes of the tapered holes of the outermost row or rows of bristles being inclined outwardly relatively to the vertical axis of the stock at a markedly greater angle than the axes of the tapered holes of the innermost row or rows. As shown, the stock of a hearth brush is of a circular shape, the upper surface being concave and the lower surface incorporating a flat central portion 7a bounded by a frusto-conical section 7b. The upper surface of the stock has a central upstanding tubular portion 7d tapped to receive the end of handle rod 8 of the brush; around the tubular projection 7d are concentric rings of upstanding hollow projections 7e and 7f, the .inner projections being externally cylindrical or slightly frusto-conical and the outer ones being markedly frusto-conical while the hollow interiors 7g and 7h are internally of tapered, formation. The axes of the hollow interiors 7g are preferably parallel to the axis of tubular projection 7d while the axes, of hollow interiors 7h are projected outwardly at an angle of about 15 degrees. In assembling the brush, the stubs of the bristle tufts are secured in the tapered holes 7 g and 7h by means of wire 10 whereupon a cover cap 11 is fitted over the back of the stock and secured by screwing the handle 8 into the tubular projection 7d on the stock. It is stated that the stock may also be oval and that there may be more than two rows of bristle tufts.
Patent GB-843932-A (GB)
Title: Improvements in and relating to hydraulic control valves
IPC: F15B13/04
Filed: 1956-03-02
Abstract: 843,932. Piston valves. TURNBULL, D. E. Feb. 25, 1957 [March 2, 1956], No. 1626/56. Class 135. In an hydraulic control valve comprising a valve spool having at least three piston lands separated by stem portions and a valve sleeve having supply and exhaust ports of constant area and two control ports at which are produced hydrodynamic reaction forces acting in the same direction on the valve spool, the stem portion adjacent the exhaust port is so thick that the channel between this stem portion and the sleeve is small enough with respect to the control ports when fully open to produce within the sleeve adjacent the exhaust port an hydrodynamic force which substantially compensates the hydrodynamic forces at the control ports. As shown in Fig. 2 the valve spool 10 has piston portions 10a, 10b, 10c, 10d separated by stem portions 10e, 10f, 10g and the sleeve 11 has a supply port 11b exhaust ports 11a, 11c and control ports 11d, 11e. The stem portions 10e, 10g opposite both exhaust ports 11a, 11c are thickened. In a modification, the ports 11a, 11c are supply ports, and the port 11b is an exhaust port. In this case, the central stem portion 10f only is thickened. In a further modification for a single-acting hydraulic actuator, the spool has only three lands and the port 11c is omitted so that the control port 11e serves only for exit of hydraulic fluid and the control port 11d only for entry of such fluid to the valve sleeve. The reduced stem portions in all forms have a diameter at least equal to 80% of the internal diameter of the valve sleeve. The effective circumferential width of the supply, exhaust and control ports, or of each set of such ports is about half the circumference of the inner surface of the valve sleeve. The stem portion 10f opposite the inlet is preferably not thickened. In Fig. 5, the piston portions 10b, 10c are spaced so that the supply control port 11e as shown is open wider than the exhaust control port 11d. This arrangement results in a reduced hydrodynamic reaction forces on the valve due to flow through the control ports at least for small openings thereof. According to the Provisional Specification, the ports 11a, 11b, Fig. 3 (not shown), may be control ports and the ports 11d, 11e supply and exhaust ports respectively.
Patent GB-417032-A (GB)
Title: Fastening means for glass plates
IPC: A47F3/12
Filed: 1934-03-03
Abstract: 417,032. Corner joints for boxes. HERMAN, A., 29, Pankstrasse, Berlin. March 3, 1934, No. 6827. [Class 18.] Glass plates are joined to form a showcase or like receptacle by members 7 engaging undercut recesses ground or otherwise formed in the plates and connected by tension wires 30, 32 with screwed nipples. The members are provided with arms forming hinged extensions 34 for the cover. A layer of elastic packing is interposed between the members and the glass. The wires may be let into grooves in the glass and may be tensioned by winding on a stem which is secured by a lock nut 49<1>, Fig. 15. The connecting members may consist of two blocks 17, 18, Fig. 6, secured in a recess in the plates by an inserted conical member 23 on a plate which is rotated and secured by screws 25.