baber/WOPTO huggingface dataset:
Patent GB-1197631-A (GB)
Title: Method and Apparatus for Measuring the Porosity of Materials and Structures.
Inventor: THORPE JAMES ALBERT
IPC: G01N15/08
Filed: 1967-05-02
Abstract: 1,197,631. Determining porosity. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 24, 1968 [May 2, 1967], No.20371/67. Heading G1S. A suction head 1 comprises an inner vacuum chamber 2 separated by a boundary wall 11 from a surrounding vacuum chamber 3 whose outer wall is 10, and is connected via pipes 14, 17 and 15 to a vacuum pump 23. Flowmeters 8 and 18 are connected in the pipes and pressure indicators 4, 5 and air bleed valves 6, 7 and 22 are provided. In operation for measuring the porosity of concrete, valves 6, 7 are closed and valve 22 is partly closed, the head 1 is applied to concrete and vacuum applied to the chambers 2, 3. The valve 22 is adjusted to give a desired vacuum pressure and the pressures in chambers 2 and 3 are balanced by opening the valves 6, 7, and the flow from the chamber 2 is measured by meter 8 which gives a measure of the flow through the area covered by chamber 2. A modified head is illustrated in Figs 4 and 5 (not shown) in which the head is D- shaped and has an inclined sealing face (25) so that the head may be used on a stepped joint between two building structures.
Patent GB-1343103-A (GB)
Title: Cage for roller bearings
IPC: F16C33/54
Filed: 1972-05-02
Abstract: 1343103 Bearings W SCHAEFFLER and G SCHAEFFLER [trading as INDUSTRIEWERK SCHAEFFLER oHG] 2 May 1972 [3 May 1971] 20405/72 Heading F2A A radial roller bearing cage consisting of cross-pieces and end rings is formed from a flat strip of sheet metal stamped into the shape of a ladder, and has cross-piece portions 9, 10 which in use come into contact with the outer race 11 of the bearing and which are convexly curved on their outer surfaces. The radius of curvature of the said surfaces may be equal to or less than that of the outer race 11 (as at 9 and 10 respectively). The centre portions 12, 13 of the cross-pieces are cranked; in an alternative embodiment, they are straight. The curvatures on the cross-piece portions are formed by non- cutting shaping before or after the flat strip is bent into an annulus. The ends of the strip may be welded together.
Patent GB-466078-A (GB)
Title: Improved method and apparatus for making staple filaments and slivers from bands or tapes of continuous filaments
IPC: D01G1/04
Filed: 1936-07-23
Abstract: 466,078. Slivers of rayon staple fibres. OSHIMA, R. July 23, 1936, No. 20411. [Class 120 (iii)] A number of bands of continuous rayon filaments are simultaneously cut at an angle to the direction of travel of the bands, and the staple fibres so formed are collected on a single conveyer while maintaining them substantially parallel. In the drawings, bands of filaments 10 are fed to cylinders 2 which are provided with helical grooves 12 co-operating with cutting knives 4 mounted on belts 5. The bands of staple fibres produced are collected one above the other on the conveyer 1 and are delivered at 13 for spinning into yarn. The usual lapping, carding, dressing, spreading, and like processes are not necessary.
Patent GB-1162630-A (GB)
Title: Improvements in Disc Brakes
Inventor: HONICK HERMAN HANS
IPC: F16D65/56
Filed: 1965-09-03
Abstract: 1,162,630. Disc brakes. GIRLING Ltd. 23 Aug., 1966, No. 20421/69. Divided out of 1,161,203. Heading F2E. In a spot-type disc brake of the kind having inner and outer pistons working in a common bore in a stationary member at one side of the disc and acting respectively on a directly-operated pad, engageable with the same side of the disc, and a yoke, which surrounds the stationary member and a portion of the disc and applies another pad to the opposite side of the disc, there is provided between a mechanical actuator and the directly-operated pad an axially movable intermediate assembly of which the effective length is adjustable automatically to compensate for wear of the friction pads when the brake is applied hydraulically after wear of the pads has taken place, the intermediate assembly comprising a stem which engages the back plate of the directly-operated pad. As shown, the stem 55, which is secured to the backing plate of the directly-operated pad by means not shown, is in threaded engagement with a sleeve 58 which in turn is acted on through a dolly 44 by a manually-operated cam 43 journalled in the outer piston 53, the sleeve 58 being slidable in a sleeve member 61 which is screwed into the piston 53 and carries a spring-loaded, pivoted pawl 64 with which is associated a pressing 63 having bent-out lugs 67 for engagement with an annular internal shoulder of the inner piston 51. Upon hydraulic application of the brake the two pistons move apart, causing pawl 64 to be rocked and, through its engagement with ratchet teeth 66 on the sleeve 58, to rotate the latter to take up any wear of the pads.
Patent GB-499660-A (GB)
Title: Improvements in or relating to sensitive surfaces of low electronic work function and methods of manufacturing the same
IPC: H01J9/12
Filed: 1937-07-26
Abstract: 499,660. Electrode materials. BAIRD TELEVISION, Ltd., and SOMMER, A. July 26, 1937, No. 20627. [Class 39 (i)] A photoelectrically sensitive and secondary electron emissive surface comprises a base member of oxidized metal carrying a photoelectrically sensitive layer of caesium or an under layer of another alkali metal. On an oxidized silver surface first rubidium and then caesium are deposited ; the surface thus formed is then oxidized until photo-electric sensitivity is substantially destroyed, and is finally heated to distil caesium to the surface. The oxidation and reheating may be repeated, as described in Specification 474,616.
Patent GB-652493-A (GB)
Title: An improved device for marking centres for drilling holes and for like purposes
IPC: B25H7/04
Filed: 1948-08-05
Abstract: 652,493. Drilling; optical apparatus for observing work. TURNER, B. Aug. 5, 1948, No. 20654. [Class 83 (iii)] A device for marking centres comprises a centre point 14 disposed on the axis of an eyepiece 1 and object lens 2 carried by a bracket adjustable over the work-piece, the centre point being adapted to be moved into engagement with the work-piece and actuated to mark thereon a point on the axis of the optical system. The eye-piece 1, object-lens 2 and centre-point 14 are secured to a sleeve 3 mounted adjustably in an antifriction bearing 5 in the end of an arm 8. The latter has a joint 11 and angular adjustment at 12 to provide universal movement above the work-piece which is supported on a base 10 carrying a standard 9 for the arm 8. A graticule 13, Fig. 4, for sighting perpendicular lines on the work-piece, is located between the eye-piece 1 and object-lens 2 in the sleeve 3 which is engaged in threads 6 thereon by a spring- pressed member 7 and rotated to provide fine adjustment. When the centre-point 14, which is mounted on a transparent member 14a, is in contact with the work-piece, it is actuated to mark a point thereon by means of a spring- pressed sleeve 17 striking a flange 19 at the upper end of the sleeve 3, the sleeve 17 normally being retained clear of the flange 19 by engagement between a spring-pressed plunger 20 on the sleeve 17 and a recess 21 at the end of the sleeve 3. The device may be operated pneumatically under the control of valves supplying air through flexible pipes 24, 35, 31, the pipe 31 supplying air to a piston 23 to disengage the member 7. A second piston 28 connected to the sleeve 3 by co-operation between a member 25 thereon and a recess 27  in the flange 19 and acting in a cylinder 29 prevents the sleeve 3 from falling too rapidly by exhausting the air in the cylinder at a variable rate through a control valve which can also be used to supply air to the cylinder 29 to raise the sleeve 3. A piston 33 may be provided on the plunger 20 to release the sleeve 17 by air pressure. In a modification, the centre point 14 is carried by the object lens 2 which is secured to a sleeve received within a tube adapted to support the eye-piece 1. The sleeve and tube are locked together by a catch which can be released to move the centre point into engagement with the work. The Provisional Specification describes also the use of a rack-and-pinion to focus the optical system on the work.
Patent GB-1089124-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/04
Filed: 1965-05-17
Abstract: 1,089,124. Suction cleaners. ELECTROLUX Ltd. May 17, 1965 [May 28, 1964], No. 20705/65. Heading A4F. In a suction nozzle provided with an electric motor for driving a roller brush and with a pivoted connection for a pipe serving both as a manipulating handle and for conducting dust laden air into a suction cleaner, the motor 13 is non-rotatably secured between upper and lower housing parts 16, 17, which form a divisible supporting seat for the pipe connection 11 in which the latter is angularly displaceable.
Patent GB-1337829-A (GB)
Title: Electrochemical reference electrode
IPC: G01N27/30
Filed: 1971-04-19
Abstract: 1337829 Electro-chemical analysis BECKMAN INSTRUMENTS Inc 19 April 1971 [21 Aug 1970] 20732/71 Addition to 1274349 Heading G1N In an electro-chemical half-cell having an ion-permeable polymeric membrane as described in Specification 1274349, the polymer is in filamentary form when mixed with the particulate material of a small specified particle size before compressing.
Patent GB-1165618-A (GB)
Title: Device for the Illumination of Edge Lit Panels.
IPC: B60Q3/04
Filed: 1967-05-04
Abstract: 1,165,618. Lamps mounted in panels. VIBRACHOC S.A. 4 May, 1967 [23 March, 1967], No. 20741/67. Heading F4R. [Also in Division H2] Lampholders for a luminous panel 1 each comprise a transparent or translucent body 12 with contacts 17, 18 which engage, respectively, a screw-threaded contact 7 and a contact shoulder 5a of a lamp 3. The body 12 is located in a panel aperture, a retaining ring 21 being threaded on the contact 18 and abutting the front face of the panel, and terminals 14, 15 of the contacts 17, 18 being soldered to printed circuitry on a board 20 which lies against the rear face of the panel. In a modification (Fig. 5, not shown) the printed circuit board 20 and the retaining ring 21 are omitted, the terminals 14, 15 being soldered to lead wires (22), which lie in recesses in the rear face of the panel, and the contact 18 having a flange (23) which abuts the front face of the panel. An opaque mask (24) covers the end of the body 12 at the rear of the panel. In both arrangements the lamp contacts 5, 7 are respectively crimped and cemented to a hollow insulating body 6 in which the wedge of a capless bulb 8 is cemented.
Patent GB-971320-A (GB)
Title: Apparatus for de-burring and cleaning workpieces
IPC: B23F19/12
Filed: 1963-05-24
Abstract: 971,320. Grinding; machine tool details. G. KEHR. May 24, 1963 [May 25, 1962], No. 20761/63. Headings B3B, B3D, B3K and B3T. Apparatus for deburring and cleaning workpieces, such as gear-wheels, shafts or the like, comprises a plurality of tools 12, 13 adjustably mounted on supporting columns, and a carriage 21 which has a holder 15 for rotatably supporting a workpiece and is movable to present the rotating workpiece for successive operation by the tools, the holder having a chuck 16, Fig. 4, which is urged by a spring 17 to a clamped position in the region of the machining positions of the tools and urged to a released position against the action of the spring by a push-rod 19 in the loading position of the carriage. The carriage 12 is movable along a track 20 by a chain driven by a motor which may be controlled by an electrical time-delay relay to position the workpiece for succession operation by the tools which are arranged in series along the track. At the loading position, shown in Fig. 1, the rod 19 is engaged by a cam 18 to raise the chuck 16 against the spring 17 to enable a workpiece 14, to be mounted in the chuck. The carriage is movable to a first position I, Ia, wherein at least one cutting tool 12 on a crossslide 23 operates on the workpiece which is continuously rotated by a motor when the carriage is away from the loading position. Thereafter, the workpiece is moved to successive positions II, IIa . . . III, IIIa for operation on by tools 13 which may comprise brush rollers, milling cutters or grinding wheels. The carriage is located in the first operative position I, Ia by a tapered member 24 which is movable by an hydraulic drive into engagement with a recess 26 on a slider 28 movable on the carriage to a position in which a recess 27 engages a stationary tapered member 25. The carriage has a holder disposed above the chuck for supporting long workpieces such as gear shafts.
Patent GB-264549-A (GB)
Title: Improved process and apparatus for distilling hydrocarbons and other liquids and fractionally condensing the vapours
IPC: C10G7/00
Filed: 1925-08-19
Abstract: 264,549. Millard, R. B., Atckison, E. J., Coulter, C. D., and Southwestern Engineering Corporation. Aug. 19, 1925. Gases, treating with liquids. - In distilling hydrocarbon oils or other liquids and fractionally condensing the vapours, a vapour separating chamber V and fractionating columns A, B, are fitted with horizontal trays S<1> and bubbling trays S, in which the vapours rise through elongated slots covered by perforating bubbling hoods.
Patent GB-295509-A (GB)
Title: Anti-splash protectors for application to ladies' shoes and the like
IPC: A43B3/16
Filed: 1928-04-24
Abstract: 295,509. Charity, P. April 24, 1928. Mudguards. - A detachable mudguard comprises a substantially horizontal main portion a, Figs. 1, 2, of celluloid, mica, or the like, having a pendant side flange a<2> on the inside, the lower end of the flange being inturned at a<3>. A clip c is attached by a clip c' to the part a and carries a length of flexible material c<2> having an eye c<3> adapted to engage a hook c' to secure the guard in place.
Patent GB-658287-A (GB)
Title: Improvements in or relating to cathode ray tubes
Inventor: STANLEY VINCENT ARTHUR
IPC: H01J29/52
Filed: 1948-08-07
Abstract: 658,287. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Aug. 7, 1948, No. 20896. [Class 39 (i)] A cathode-ray tube comprises a cathode 2, grid 6, apertured electrode 7 and anode 9, the voltage required to produce a variation of beam current being reduced by arranging the grid 6 at a distance from the electrode 7, which is between <SP>3</SP>/ 2  and <SP>3</SP>/ 4  of the diameter of the aperture therein. The lens formed thereby produces a waist in the beam between the grid and anode. In the preferred form, a television receiving tube has a flat or concave grid 6 of 200 apertures per inch and radius of 3 mms., and is secured to a disc 4 which is 0.008 inches thick; it is arranged so that its apex is 0.003-0.006 inches from the emissive surface 2 and 0.030-0.015 inches from the electrode 7. The thickness of electrode 7 may be 0.01 ins. and the anode potential 6 k.v. The grid may be earthed and connected to, or be positively biassed 5 volts with respect to, the electrode 7. A modulating potential of 3 volts between cathode and grid will cause a variation of beam current of 200 m.a.
Patent GB-291643-A (GB)
Title: Improvements in or relating to variable electric condensers
IPC: H01G5/06
Filed: 1927-08-08
Abstract: 291,643. Sacco, L. Aug. 8, 1927. Condensers with variable capacity are constructed so that, during whole or a portion of the movement of the moving armature, an enlargement and reduction of the overlapping surfaces is obtained whereby the resultant variation of the overlapping surface is determined by the difference between the enlargement and reduction. In the case where only a part of the movement of the moving system is utilized to give this differential effect, the remaining part of the movement is arranged to take place according to known arrangements. The condensers can be arranged to follow any desired law, such as straight-line capacity, wave-length, or frequency, or uniform percentage increase in those quantities, and the invention is also applicable to cylindrical plate condensers. In Fig. 1, the fixed plate a extends over an angle # and the rotating plate b has a rotation y and by varying the sizes of these angles, the maximum capacity and the ratio maximum/minimum can be varied within wide limits. The moving plate b is stepped and each step is shown as of extent #. Fig. 2 shows an example of a rectilinearly-moving plate b, the total movement of which is k, and the width of the fixed plate a is h. The Specification also shows many other different shapes of plates, in which the extent of movement is always greater than or equal to the extent of the fixed plate in the direction of that movement.
Patent GB-1049175-A (GB)
Title: Improvements in or relating to card filing accessories
IPC: B42F17/02
Filed: 1964-05-20
Abstract: 1,049,175. Filing papers. H. H. ROSS. May 17, 1965 [May 20, 1964; Aug. 6, 1964], Nos. 20901/64 and 32089/64. Heading B6E. A device for use in card index trays or drawers for supporting cards in an upright form, or as a partition member, comprises a body 4 formed as an injection moulding of transparent plastics material, rollers 11 mounted on wire frames 7 at each end of the body and urged apart so as to engage the sides of a tray &c. 3, and a top flange portion 6 on the body which is recessed at 16 to enable the fingers of an operator to grasp the device for adjustment or removal. As shown, the device is a plate 5 with upper and lower flanges 6 which are each drilled to receive the limbs of a wire framework 7 having two rollers 11 of rubber or synthetic plastic material. In Fig. 2 (not shown), a partition device comprises an elongated channelshaped body 18 made of transparent plastics material with two opposed spaced plates 19, 21 and an integral top flange 20, and the bottom ends of the plates are cemented to a filler strip 22. The flange 20 is cut away at 23 to form a finger grip for the device. The side ends of the plates are drilled to receive resilient wire frames 24, 24<SP>1</SP> carrying rollers 25 which engage the sides of a tray &c., and these are arranged within the confines of the thickness of the device. The ends of the wire frames, in each case, are longer than the holes receiving them.
Patent GB-1135588-A (GB)
Title: Printing machine
IPC: B41L45/02
Filed: 1966-05-11
Abstract: 1,135,588. Printing apparatus. ADDRESSOGRAPH MULTIGRAPH CORP. 11 May, 1966 [12 Aug., 1965], No. 20947/66. Headings B6C and B6F. The subject-matter is identical with that disclosed in Specification 1,135,587, but the claims relate to a cylinder machine for printing sales forms in which the stop-mechanism of Specification 1,135,587 is not necessarily present, the warning to the operator that the type-wheels should be re-set being of a visual nature.
Patent GB-743879-A (GB)
Title: Process and apparatus for producing carbon black
Inventor: WILSON CHARLES LOUIS
IPC: C09C1/50
Filed: 1953-07-29
Abstract: <PICT:0743879/III/1> Carbon black is produced by injecting a normally non-gaseous hydrocarbon in atomized form through conduits 42 into a primary cylindrical reaction chamber 10 having a diameter at least twice its length and subjecting the hydrocarbon to thermal decomposition and/or partial combustion by burning a combustible gas issuing from an annular burner 28 in a spirally rotating annular stream of air, the reaction being allowed to continue in a secondary reaction chamber 12 of diameter less than that of annular burner 28 and of greater length than that of primary reaction chamber 10. The air may pass through an annular passage 22 formed between a plug 18 and shell 38.  The plug 18 and annular burner 28 may be axially adjustable.  Specification 699,406 is referred to.
Patent GB-517282-A (GB)
Title: Improvements relating to motor-vehicle chassis
IPC: B62D21/04
Filed: 1938-07-15
Abstract: 517,282. Motor vehicles. ALVIS, Ltd., and DUNN, W. M. July 15, 1938, No. 20989. [Classes 79 (ii), 79 (iii) and 79 (iv)] The chassis comprises a central tubular frame 18 having at least two transverse supports 20 23, the engine 12 being supported thereon to one side of the tube with its crankshaft longitudinal of the vehicle and with its cylinders not vertical but either horizontal or inclined to the vertical. In the construction shown the engine cylinders are nearly vertical and are inclined towards the central vertical plane of the vehicle. The engine has a three-point mounting by means of two rubber pads 22 on the rear support 23 and a ball-joint 24 on a gear casing 19 fixed both to the front support 20 and the tube 18. The engine drives the wheels through the clutch 13, gear-box 14, universal joint 25, a geartrain 16 in the casing 19, and a propeller shaft 17 in the tube 18. Reversing gear may be provided either in the usual changespeed gear 14 or elsewhere in the transmission. The supports 20, 23 carry a fuel tank 26 on the other' side from the engine and may also carry a seat for a gunner or other passenger. The driver's seat may be arranged over the gearbox. Specifications 517,280 and 517,281 are referred to.
Patent GB-675213-A (GB)
Title: Stylus assemblies for facsimile machines
IPC: H04N1/032
Filed: 1949-08-12
Abstract: 675,213. Facsimile telegraphy. STANDARD TELEPHONES & CABLES, Ltd. Aug. 12, 1949 [Jan. 15, 1949], No. 21012/49. Class 40 (iii). A stylus for a facsimile transmitter or receiver is pivoted on a spring blade so that it swings forward into operative position through an opening in the stylus housing when the housing is horizontal and swings back into the housing when the latter is tilted up. The arrangement shown is particularly for use in the apparatus described in Specification 668,865 and comprises a housing 12 movable longitudinally of the drum 35 along a guide tube 13 and rotatable about the tube 13 between the horizontal (operative) position shown in Fig. 1 and the vertical (inoperative) position, Fig. 2 (not shown). A spring plate 19, in contact with a terminal member 22, is fixed to an insulating coverplate 15 and the bent-over free end 25 carries a tube 26 in which pivots one end of an L-shaped stylus wire 27, Fig. 5. A tongue 31 of plate 19 bent into hook-form provides a forward stop for the stylus. If the drum 35 is moved in the clockwise direction without lifting the housing 14, the stylus will pivot over in togglefashion to take up a trailing position and thus prevent injury to the stylus point. When the stylus housing is raised, the stylus swings into the housing and the end 25 of plate 19 engages a grounded terminal 36.
Patent GB-531365-A (GB)
Title: Improvements in or relating to metallic screening hoods for sparking plugs
IPC: H01T13/06
Filed: 1939-07-20
Abstract: 531,365. Sparking plugs BOSCH GES., R. July 20, 1939, No. 21045. Convention date, July 23 1938. [Class 7 (iv)] [Alsc in Group XXXVI] A metallic screening hood a is lined with insulation b and retained by a sleeve q provided with a handle s. A spring r compressed between an internal flange on the upper end of the sleeve q and a shoulder g on the hood holds the lower end of the sleeve against the washers h surrounding the hexagon t.
Patent GB-866240-A (GB)
Title: Advancing roof support system, for mine faces
IPC: E21D23/00
Filed: 1957-07-03
Abstract: 866,240. Mine roof supports. GEWERKSCHAFT EISENHUTTE WESTFALIA. July 3, 1957 [July 9, 1956], No. 21055/57. Class 20(2) An advancing mine roof support comprises two pairs of pit props 24, 25 and 22, 23, the former joined to a double acting cylinder 17 by leaf springs 26, 27 and the latter to a hollow piston rod 14 by similar springs 20, 21. Guide rod 13 which moves within the piston rod 14 is pivoted to a conveyer 11 at 12 and has a spring 29 and bearing plate 30. In operation one pair of props is released from roof engagement and air is introduced under pressure at one end of the cylinder 17 to act upon the piston 141 and advance the disengaged props.