baber/WOPTO huggingface dataset:
Patent GB-677736-A (GB)
Title: Improvements in or relating to torque transmission couplings
IPC: F16D3/68
Filed: 1949-11-10
Abstract: 677,736. Flexible couplings. DUNLOP RUBBER CO., Ltd., and BRIERLEY, P. Aug. 21, 1950 [Nov. 10, 1949], No. 28843/49. Class 80 (ii). Shaft flanges 1, 2 are flexibly coupled by a number of resilient members each comprising a pair of angle brackets 4 attached one to each flange and having a rubber block 5-bonded between their overlapping arms, the brackets being secured to the flanges by bolts 6 co-operating with arcuate slots, or arcuate series of holes, in, the flanges or brackets, so that each coupling member is capable of angular adjustment to vary the ratio of shear and compression to which the blocks 5 are subjected. The angle of the brackets may be slightly less than 90 degrees and the bolt holes suitably disposed so that the blocks 5 are pre-compressed during assembly, in all positions.
Patent GB-1314275-A (GB)
Title: Devices for clamping tubular members
IPC: F16B12/40
Filed: 1970-06-15
Abstract: 1314275 Furniture joints R G LAVERGNE 15 June 1970 [19 June 1969 29 April 1970] 28843/70 Heading A4H [Also in Division E2] An assembly which can be used for making tables or racks comprises, in combination: (i) a clamp device including; a first expansion core 2d, shaped as a frustum of a cone or of a pyramid, and having an axial tapped hole, a headed control screw 4d engaged in said tapped hole, a second expansion core 20, shaped as a frustum of a cone or of a pyramid, formed as part of a junction member 15 and a pair of complementary half-shell wedging members 19 which together have externally the same shape as the inner section of a tubular member 3d to be secured by the clamp device, and which together define internally at each end a cavity 21 of substantially the same shape as the respective expansion core; a pair of end pieces 18a, 18b each having: a first end portion to engage in a corresponding recess 17a, 17b in said junction member, a second end portion to engage in a respective channel member 16a, 16b and resilient blades 22, with curved projecting ends, on said second end portion for securing the channel member on said end portion and (ii) a key 23 for engagement through an opening in the junction member for securing the first end portion of each end piece in the junction member. When the screw 4d is tightened in the core 2d the half shell members are forced apart to grip the tube 3d both by the core 2d and the core 20. The key 23 has portions which engage shoulders 24 of the first end portions and prevents their removal from the junction heads. In a modification a cap is provided which fits the opening in the junction head through which the key passes, this cap includes an expansion core which co-operates with another core identical to the core 2d and two further half shell members identical to the members 19 to secure a second tubular member to the head 15 coaxially with the members 3d.
Patent GB-173105-A (GB)
Title: Improvements relating to buckets for dredger, elevator and like chains
IPC: E02F3/14
Filed: 1920-10-12
Abstract: 173,105. Hunter, S. B. Oct. 12, 1920. Endless - - chain machines. - Buckets are formed by diagonally cutting rectangular strips of steel or other material into blanks b, each of which forms the two sides and front plate of a bucket which is completed by a back plate f, with or without a bottom plate g. A stiffening. plate h is preferably attached to the lip of the bucket.
Patent GB-1353396-A (GB)
Title: Imaging system
IPC: C09K19/50
Filed: 1971-06-21
Abstract: 1353396 Modulating light XEROX CORP 21 June 1971 [19 June 1970] 28937/71 Heading H4F [Also in Divisions G2 and G4-G6] The relaxation characteristics of an imaged cholesteric liquid crystal layer are modified by the application of a uniform holding electric field across the imaged layer and of a strength insufficient of itself to maintain the image. The liquid crystal material may be in the cholestericnematic phase transition temperature range producing a transparent image (dark through polarizers) on a milky white background or in the Grandjean to focal-conic texture change transition temperature range producing a white image on a coloured background. One or both field-producing electrodes may be transparent for viewing the image by reflected or transmitted light respectively. The image may be formed using an X-Y address system, electron beam address electric stylus or photoconductive member. The holding electric field may be maintained during application of an imaging electric field and subsequent pulsed uniform or imagewise electric fields of imaging strength (but not duration) to produce an image of constant brightness; by this means, an image may be built up using the X-Y address system.
Patent GB-450305-A (GB)
Title: Improvements in or relating to the polymerisation of unsaturated organic compounds
IPC: C07C37/02
Filed: 1934-10-09
Abstract: Unsaturated organic substances are polymerized in flat chambers the flat side walls of which are capable of relative movement to compensate for diminution in volume of the polymerized material, the solid polymers being removed from the chamber. Suitable organic substances, which may be partially polymerized, include acrylic acid esters, methacrylic acid esters, vinyl esters, styrene or mixtures thereof with or without the addition of polymerization accelerators or softening agents.  Suitable chambers are prepared having as the main walls glass or metal plates and kept apart with flexible separating strips or distance pieces which may be made of substances such as gelatine, glue and a softening agent such as glycerine, caoutchouc, soft cardboard, textile materials, linoxyn and flexible cement.  In examples a mixture of methyl methacrylate, isobutyl phthalate and benzoyl peroxide or a mixture of ethyl methacrylate and benzoyl peroxide is polymerized in a chamber comprising two glass sheets separated by small distance pieces.  Specifications 297,413, [Class 20 (iii)], 417,999, and 445,478 are referred to.
Patent GB-251934-A (GB)
Title: Improvements in controlling rotary compressors
IPC: F04C28/24
Filed: 1925-11-17
Abstract: 251,934. Swiss Locomotive & Machine Works. May 7, 1925, [Convention date]. Fixed - abutment type; governing and regulating pumps.-In order to avoid sudden changes in pressure in controlling rotary compressors, the controlling effect is applied so that the delivery branch is slowly connected to the atmosphere and the suction branch slowly closed, only after a predetermined pressure is reached in the delivery branch. The invention is illustrated as applied to a rotary compressor with outwardly-sliding vanes. Air enters the working chamber through the suction branch S and leaves it at the delivery branch D which is provided with a non-return valve 4 and connected to a control relay 7 by a pipe 6. The relay comprises two weighted or spring-pressed pistons 8 and 9 so that they allow the controlling action to take place only when the pressure in the pipe 6 reaches a predetermined amount. When this occurs, the pistons 8 and 9 are lifted and connect the pressure pipe to a receptacle 14 containing a viscous liquid by a pipe 12. The viscous liquid rises up the tube 15, under the pressure, and lifts a piston 16 which rocks the lever 17, one arm 23, of which, operates the overflow valve 18, connecting the delivery branch to the atmosphere via the pipe 30, and the other arm 24 of which operates the shut off valve 22. This valve has ports 27 which register with ports 28 in the casing 21 when the valve is in its uppermost position and the shape of the ports 27 causes the opening and shutting of this valve to be gradual. The valves 18 and 22 are returned by springs when the pressure in the pipe 12 falls and the piston 16 drops back. Set screws are provided on the arms 23, 24 for accurate adjustment. When the maximum desired pressure is reached in the pipe 6, the piston 8 is lifted, connecting pipes 6 and 10 so that the piston 9 is also lifted and the pipe 6 is connected to the pipe 12. The valves 18, 22 are then operated. The velocity of the liquid up the pipe 15 may be regulated by the set screw 32. When the pressure in the pipe 6 is reduced by the action of the central valves, the piston 8 drops, interrupting the connection between the pipes 6 and 10. The piston 16 is still upheld however by the pressure communicated to the pipe 12 by the by-pass 11. When the pressure drops to the desired minimum, the piston 9 drops, cutting off communication between the pipes 6, 12. The piston 16 then drops gradually and the valves 18, 12 are gradually restored to normal position.
Patent GB-464638-A (GB)
Title: Manufacture and application of coloured pigments
IPC: F01L1/46
Filed: 1935-10-21
Abstract: Coating-compositions and coloured writing pencils comprise lead cyanamide as a pigment, together with a suitable vehicle or binding agent.  The lead cyanamide may be mixed with an adulterating agent such as clay or calcium carbonate, or with another pigment, such as a blue pigment made by the process described in Specification 444,110. Coatings containing lead p  cyanamide are stated to possess anti-corrosive properties.  The lead cyanamide may be made by treating commercial calcium cyanamide with water containing a sufficient quantity of a heavy metal salt to precipitate sulphide impurities, filtering, and adding a solution of a lead salt, e.g. lead nitrate, when lead cyanamide is precipitated in the presence of excess of monocalcium cyanamide or of a base such as ammonia. According to examples: (1) a paint comprises lead cyanamide and linseed oil varnish; (2) a paint comprises lead cyanamide, a cellulose ester and water; (3) a coloured writing pencil is made from lead cyanamide, clay, calcium carbonate and gum arabic solution; (4) an anti-corrosive paint comprises lead cyanamide, titanium black and linseed oil; (5) a paint comprises lead cyanamide, chrome yellow and linseed oil varnish; (6) a paint comprises lead cyanamide, an organic yellow pigment, linseed oil varnish and stand oil.ALSO:Coating-compositions and coloured writing pencils comprise lead cyanamide as a pigment, together with a suitable vehicle or binding agent.  The lead cyanamide may be mixed with an adulterating agent such as clay or calcium carbonate, or with another pigment such as blue pigment made by the process described in Specification 444,110, [Group III].  Coatings containing lead cyanamide are stated to possess anti-corrosive properties.  The lead cyanamide may be made by treating commercial calcium cyanamide with water containing a sufficient quantity of a heavy metal salt to precipitate sulphide impurities, filtering, and adding a solution of a lead salt, e.g. lead nitrate, when lead cyanamide is precipitated in the presence of excess of monocalcium cyanamide or of a base such as ammonia. According to examples: (1) a paint comprises lead cyanamide and linseed oil varnish; (2) a paint comprises lead cyanamide, a cellulose ester and water; (3) a coloured writing pencil is made from lead cyanamide, clay, calcium carbonate and gum arabic solution; (4) an anti-corrosive paint comprises lead cyanamide, titanium black and linseed oil; (5) a paint comprises lead cyanamide, chrome yellow and linseed oil varnish; (6) a paint comprises lead cyanamide, an organic yellow pigment, linseed oil varnish and stand oil.
Patent GB-652720-A (GB)
Title: Improvements in or relating to methods of and apparatus for painting motor car bodies
Inventor: FOWLER ALEXANDER PROUD
IPC: B05B13/02
Filed: 1948-11-09
Abstract: <PICT:0652720/III/1> <PICT:0652720/III/2> <PICT:0652720/III/3> An area of a motor car body is coated with paint by progressively applying the paint in a helical band on the body surface by moving the body lengthwise past a paint projecting zone and simultaneously rotating the body about a horizontal, longitudinal axis, the distance of the area of contact of paint at any part of the helical band from the projecting zone being maintained constant and the volume of paint being projected being related to the speed of the area passing the projection zone, and preventing the application of paint when parts not to be painted pass the projection zone.  Referring to the drawings, spray booth 1 comprises rail 2 carrying pairs of wheels 6 with stirrups 7 and depending parts 8 connected to beam 9 carrying flexible means 11 and 16 connected to shaft 10 on which car body A is fixed. Toothed wheels 14 and 15 carry chain 16 while wheel 14 is keyed on shaft 17 with bevel 18 gearing with bevel 19 and pinion 20 which is engaged by intermittent rack 22 which moves beam and car along the booth and also rotates the car body.  This body as it passes along the booth receives paint from sprays 38 on arms 39 which are maintained by ram 45 of similar contour to the car body, at a constant distance from the area of contact of the paint with the part of the car body opposite the gun.  Cam 49 also of similar contour to the car body maintains the axis of the gun 38 normal to the car body. The volume of paint projected from gun 38 is controlled by valve 50 actuated by cam 51 rotated in synchronism with car body 1 and having an actuating contour corresponding to the varying radii in the Schial band.  Instead of spraying the paint may be flowed on when the nozzles may be mounted in fixed positions and fed through a valve controlled as before.
Patent GB-1471152-A (GB)
Title: Testing of articles
IPC: G01N29/44
Filed: 1973-06-19
Abstract: 1471152 Ultrasonic inspection devices BRITISH STEEL CORP 18 June 1974 [19 June 1973] 29053/73 Heading G1G An article of rod or tube form is tested for defects by scanning a probe in a helical path about the article; making, on receipt of defect-indicative signals at the probe, a pictorial record of the magnitude and position along the article of any defect; subjecting defect-indicative signals above a predetermined magnitude to repetition tests; and marking on the record the angular position of any defect about the article if a predetermined repetition of signals is indicated by the tests. For testing steel tube to detect longitudinally oriented flaws of a radial nature, eight ultrasonic shear-wave probes each acting as both pulse transmitter and echo receiver are arranged as pairs on an annular carrier rotating about the tube. The pairs are at 90 degrees intervals. The two probes of a pair are inclined respectively towards and against the direction of rotation. Each probe has two associated signal processing channels: for inner and outer wall flaws respectively. One such channel, the others are similar, is shown in Fig. 1. Gated flaw echoes from any probe are routed by mixer 5 to a monitoring CRT at 6. Inner wall flaw echoes from probe 1 are fed to a gated 8-level pulse-height discriminator 9. Only echoes above a threshold amplitude pass from there to unit 13 which provides an output at 25 only if satisfactory echoes are received from each of a pre-set number of pulse transmissions, shots, thereby avoiding spurious flaw indications. The output at 25 is further tested at 14 so that only flaws exceeding a minimum length are registered. The logic 14 can be set to verify that a flaw detected by one probe is detected again either (a) one revolution later by the same probe, (b) “ revolution later by a probe lagging by 90 degrees or (c) ¢ revolution later by a probe lagging by 180 degrees. A unit 47 controls recorder 12 so as to record an indication of the tube quadrant in which a flaw is detected, providing that the flaw echoes meet the successive shot and successive revolution criteria of units 13, 14. Delays 48-51 also enable unit 47 to drive paint sprays for marking the tube at the appropriate quadrant and length position. The discriminator 9 and logic unit 13 outputs are monitored by recorder 12 and alarm 62 respectively. The apparatus is calibrated using a reference tube with internal and external notches, the gain of receivers 3 being balanced to give equi-amplitude echoes from these notches. Details of the logic units 13 and 14 are given, Figs. 3 and 4, (not shown).
Patent GB-898076-A (GB)
Title: Sewing machine having double stitch fingers
IPC: D05B27/18
Filed: 1960-08-23
Abstract: 898,076. Sewing-machines. SINGER MANUFACTURING CO. Aug. 23, 1950 [Aug. 25, 1959], No. 29108/60. Class 112 In a sewing-machine having a stitch finger around which stitches are formed and along which the stitches are fed as they are formed, the finger is constructed in two parts. The two parts are relatively movable so that tight or loose stitches may be produced by the machine. The finger may be incorporated in an overedge sewing-machine, in sewing attachments with presser feet having a stitch finger, in a straight stitching sewing-machine wherein a stitch finger is formed as part of the throat plate or part of the bobbin case holder, or in a cup feed sewing-machine. In the cup feed sewing-machine shown the stitch finger comprises a first part 28 and a second part 38. The part 28 is adjustably secured to a support 33 attached to the machine and overlies the feed-cups 22, 23. The part 38 is adjustably mounted on a movable support 43 which also supports the outer feed-cup 23. The parts are initially adjusted to lie with their blades 29, 39 substantially parallel to each-other on opposite sides of the material being sewn and at a distance apart to give the required looseness to the stitches formed around them. Variation in the thickness of the work being sewn will cause the cups 22, 23, together with the parts 28, 38, to move apart and vary the looseness of the stitches formed. Specifications 533,958 and 534,013 are referred to.
Patent GB-467968-A (GB)
Title: A new or improved process of reproducing pictures or writing on metal
IPC: B41C3/02
Filed: 1935-10-22
Abstract: An alloy for making printing-plates or other design plates consists of 55 to 60 per cent tin, 30 to 35 per cent lead, 4 per cent copper and 2 to 6 per cent stibnite.  A part of the stibnite may be replaced by bismuth.
Patent GB-365097-A (GB)
Title: Improved process for the flotation treatment of cryolite
IPC: B03D1/001
Filed: 1930-09-12
Abstract: The concentration of cryolite by froth flotation is improved by adding to the suspension ions which are the same as those imparted to the solution by the mineral.  In concentrating cryolite mixed with quartz gangue sodium fluoride is added to the suspension, sodium hydroxide, sodium silicate, potassium xanthate, pine oil and oleic acid being used as flotation agents.
Patent GB-697438-A (GB)
Title: Improvements relating to electric rotary switches
IPC: H01H19/64
Filed: 1951-12-13
Abstract: 697,438. Snap-action switches. BUSCH-JAEGER LUDENSCHEIDER METALLWERKE AKT.- GES. Dec. 13, 1951 [Dec. 16, 1950], No. 29257/51. Class 38(v) In a rotary switch in which a number of similar annular contact supports 11, 12 are arranged in layers one above another on a base 1, the base is made with recesses which contain the spring pressed plates 3, 4 which, by engaging the squaresectioned shaft 5, determine the switch positions. The supports 11, 12 fit into each other by means of V-shaped projections and grooves and in addition have recesses to accommodate the fixed contacts 13 which project inwards into gaps in insulating rims 17 which are embraced by the clip-type rotary contacts. The contacts 13 are slightly thicker than the rims 17. The rotary contacts consist of rigid portions 24 and flexible portions 25 clipped on to them, the portions 24 being slightly longer circumferentially than the portions 25 so as to take the spark. The rotary contacts have star shaped holes which slidably engage the starshaped spindle.
Patent GB-810092-A (GB)
Title: Improvements in or relating to gas meters of the dry type
Inventor: TOMPKINS WILFRED CHARLES
IPC: G01F3/22
Filed: 1954-10-11
Abstract: 810,092. Gas meters. PARKINSON COWAN Ltd. [formerly PARKINSON & COWAN Ltd], Oct. 11, 1955 [Oct. 11, 1954; Feb. 28, 1955; April 25, 1955], Nos. 29284/54, 5930/55 and 11937/55. Class 54. A gas meter has a double - acting piston 20, Fig. 6, mounted between two measuring chambers 27, 28, the piston being provided with two diaphragms 25, 26 forming a space 29 which is maintained at a pressure higher than or equal to the inlet pressure or lower than or equal to the outlet pressure, but not between the inlet and outlet pressures. The space is preferably maintained at inlet or outlet pressure and receives a pivoted yoke 32 to connect the piston 20 to the valve mechanism and meter index. Fig. 8 shows a construction in which two cylindrical diaphragms 35, 36 are used. The piston may have a narrower cylindrical portion 20b than that shown and be connected to the meter mechanism by a piston-rod passing through a stuffing-box in one of the pans 21. A double diaphragm, such as that shown at 39 in Fig. 11, may be used, two wires 40 serving to secure the diaphragm to the piston 20. A series of apertures 30a connects the space 29 to that surrounding the pans 21. Fig. 13 shows a double diaphragm member moulded from rubber, synthetic rubber or synthetic plastic-covered fabric. The web 42 to which discs are clamped on either side may be apertured or omitted. In Fig. 16, the web 46 acts as a piston and has attachment points 47 for the meter mechanism. A space 48 may be inflated to a pressure above the inlet pressure with inert gas before the diaphragm is mounted or a tube for communicating pressure to the space 48 may be provided. Specifications 504,424 and 810,021 are referred to.
Patent GB-936493-A (GB)
Title: Concrete mixing and like apparatus
Inventor: GREEN ROWLAND PERCY
IPC: B01F15/00
Filed: 1960-08-24
Abstract: 936,493. Concrete mixers. STOTHERT & PITT Ltd. Aug. 23, 1961 [Aug. 24, 1960], No. 29310/60. Class 86. [Also in Group XXIX] A non-tilting rotary drum mixer A of the type having a feed opening at one end and a discharge opening at the other is driven through reduction gearing C by an hydraulic vector B supplied with pressure fluid by a pump D and having a manual control F<SP>1</SP> for mixing (forward), neutral (off), and discharge (reverse) positions. Relief valves M, N are provided to prevent cavitation in the pipe-lines when the position of the control F<SP>1</SP> is changed (see also Group XXIX).
Patent GB-734567-A (GB)
Title: Improvements in or relating to a device for use particularly as a toy building element but which may be used as a parcel carrier
IPC: A63H33/08
Filed: 1953-10-23
Abstract: 734,567. Parcel carriers. JACOBSEN, G. B. Oct. 23, 1953 [May 5, 1953], No. 29346/53. Class 133. [Also in Group XV] A toy building element which may be used as a parcel carrier comprises a cylindrical member 1 having pairs of cylindrical stubs 2 extending opposite to each other, transverse holes 3 of the same diameter as the stubs also being provided. A longitudinal hole 5 is terminated at one end by a stub 4 having a concentric hole 6. In using the element, the string of the parcel is passed or secured between two adjacent pairs of stubs.
Patent GB-808196-A (GB)
Title: Foldable brackets
Inventor: BUNCH ALBERT
IPC: B60N3/00
Filed: 1956-09-26
Abstract: 808,196. Folding brackets. BUTLERS Ltd. Sept. 23, 1957 [Sept. 26, 1956], No. 29357/56. Class 52(5) A folding bracket for use as a temporary table comprises a back piece e of metal or hard plastic secured by screws, hooks or adhesive to an article of furniture or in a vehicle, a flap d hinged to a vertical edge of the back piece, and a tray c hinged to the lower horizontal edge of the back piece and maintained in a horizontal position by the engagement of a tongue e in one of the apertures f in the flap, the flap or the tray serving as a cover when the parts are folded together.
Patent GB-852516-A (GB)
Title: Improvements in or connected with curtain suspension devices
IPC: A47H13/12
Filed: 1956-09-27
Abstract: 852,516. Suspending curtains. KUNA, J. Sept. 4, 1957 [Sept. 27, 1956], No. 29537/56. Class 52(5) A curtain glider comprises a U-shape portion with parts 2 for sliding engagement with the flange of a rail 4 and a hook 5 to receive the loop of a heading tape. In a modification the centre-line of the hook is offset relatively to the centre-line of the U-shape part for use with a tape secured at a distance from the top of the curtain. The glider and the rail are preferably made of synthetic resin.