baber/WOPTO huggingface dataset:
Patent GB-489001-A (GB)
Title: Movable apparatus for lifting and manipulation of loads
IPC: B66C23/60
Filed: 1937-01-15
Abstract: 489,001. Derricks ; launching and landing aircraft. KERVARREC, B. Jan. 15, 1937, No. 1306. Convention date, Jan. 15, 1936. [Class 78 (iv)] [Also in Group XXXIII] A derrick intended primarily for raising seaplanes on to the deck of a ship, comprises a wheeled carriage 6 running on rails 7 on the deck 8, or other surface, and provided with jib arms 2 pivoted on a shaft 5 and supported by two or more cables 10 and 11. The cables are secured at one end to points 12, 13 at the deck level, pass over control drums 9 on shaft 5 and pulleys 15 at the head of the jib, and are attached at the other end to a pylon 16. Translational movement of the carriage is controlled by the drums 9, and owing to the upper and lower ends of the cables 10 and 11 being parallel, such movement does not result in any variation in the inclination of the jib. The raising of the seaplane or other load, is effected by a cable passing over a pulley 4 and operated by a piston in a compressed air cylinder 25. Admission of air into the upper end of this cylinder for raising the load is controlled by a manual valve 29 and an automatic valve 40 which limits the pressure attainable in the cylinder 25. The manual valve 29 is opened against spring pressure by a piston 30 operated by compressed air controlled by a manual regulator 31, 32. The automatic valve 40 comprises a cylinder with compressed air inlets 41, 42 and an outlet 43 connected with the operating cylinder 25. Communication between the inlets 41 and outlet 43 is controlled by a sleeve valve 45 operable by a piston 50 working in cylinders 51 and 54 communicating respectively with a compressed air reservoir 53 at an adjusted pressure and the outlet 43 to the operating cylinder 25. When the pressure in the latter slightly exceeds that in the reservoir 53, the sleeve 45 is displaced to cut off the supply to the operating cylinder. Excessive raising effort is thus prevented, the pressure in the reservoir 53 being adjusted to suit the load. For raising seaplanes, an auxiliary derrick 18 is provided on the carriage 6. This derrick comprises a hollow piston-rod 37 slidable in a cylinder against the action of shock-absorbing springs. The mooring rope 36 of the seaplane is drawn through rod 37 until the nose of the seaplane seats in a funnel swivel-mounted at the end of the rod.
Patent GB-535364-A (GB)
Title: Improvements relating to hospital and like institution bedsteads
IPC: A61G7/015
Filed: 1940-01-23
Abstract: 535,364. Hospital and like bedsteads. PHILLIPS, Ltd., A., and ROGERS, A. E. Jan. 23, 1940, No. 1349. [Class 52 (ii)] In a hospital or like bedstead having a sectional mattress, and wherein the sections may be independently removed, the sections are provided at the sides with hook-like projections which engage rods at opposite sides of the bedstead, the rods at one side being pivoted to facilitate removal or replacement of the sections. In the Figure are shown three sections 10 extending between the side rails 7, 7a of the bedstead. The sections are each carried by a pair of bars 12b having at one end hooks 12 engaging a bar 8 secured to the side rail 7. At the other end hooks 12a, of an open inclined shape, co-operate with bars 9 pivoted to the side rail 7a. A handle 13 bridges each pair of bars 12b. To detach a section, the hooks 12a are raised clear of the bar 9, the bar is swung back as shown in connection with the centre section and the section is lowered and removed from the bar 8.
Patent GB-538198-A (GB)
Title: Improvements in or relating to electron discharge apparatus
IPC: H01J19/00
Filed: 1940-01-23
Abstract: 538,198. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., and FREMLIN, J. H. Jan. 23, 1940, No. 1385. [Class 39 (i)] In valves of the pentode type, the wires of the suppressor grid G3 are disposed in the spaces between the wires of the screen grid G2, and the wires of the latter are disposed in alignment with alternate wires of the control grid G<SP>1</SP>.
Patent GB-309884-A (GB)
Title: Improvements in or relating to lead-through insulators
IPC: H01B17/28
Filed: 1928-01-16
Abstract: 309,884. Pollak, J. E., (Hermsdorf- Schomburg-Isolatoren Ges.). Jan. 16, 1928. Insulators. - A lead-in insulator of the condenser type has a ceramic dielectric with coatings of an electrically-conducting ceramic material which is fired at the same time as the ceramic dielectric. The ceramic coatings may also be of non- conducting material which has a dielectric constant differing from that of the dielectric proper. In the construction shown in Fig. 1. conducting coatings 3 alternate with layers of dielectric 4 to form the separate parts of the condenser, and they are held together about a lead-in bolt 2 by a porcelain jacket 1 which is mounted in a Range 5. The layers 4 of dielectric may each be made in one piece or in several pieces, and they may be coated with the material 3 and burned together after assembly. Alternatively, the layers 4 may be assembled after burning, the spaces between them being then filled with the ceramic material for the coatings 3 and the parts burned together. The coating 3 may consist of an electrically-conducting glaze such as a glaze incorporating 15 to 25 per cent of graphite, or the walls of the spaces may be provided with a metallic or graphite coating, the spaces being then filled with a semiconducting or non-conducting material having a different dielectric constant from that of the layers 4. The ceramic material of the layers 4 may also be impregnated in a known manner with a substance of high dielectric strength, such as paraffin, oils, resins, or the like.
Patent GB-1394913-A (GB)
Title: On-load tap changer for regulating transformers
Inventor: BREUER W
IPC: H01H3/44
Filed: 1973-01-11
Abstract: 1394913 Transformer tap changing systems MASCHINENFABRIK REINHAUSEN Gebr SCHEUBECK KG 11 Jan 1973 [15 Jan 1972] 1550/73 Heading H2H An on-load transformer tap changing apparatus comprises a first winding having a single tapping and a second winding having a plurality of tappings, the apparatus further comprising a plurality of switching devices, all of which have an interlinked driving arrangement, the switching device being operative to vary the voltage applied to a load from a maximum value to a minimum value or vice versa. Transformer tap changing apparatus includes a winding Gw and a coarse selector switch G the operating contact of which is movable to be in contact with one or the other end of the winding Gw. A second winding Fw is provided, having a plurality of tappings 1-n arranged in a circle as shown in Fig. 4, a further contact k being placed in the circle between the contacts 1 and n. A switch W is ganged, both electically and mechanically, to the switch G, the operation of the switch W being such that it contacts one or other of the ends of the winding Fw. A switch F is provided for selecting the tappings on the winding Fw, the switch F comprising two alternately movable arms Fal, Fa2, the arms contacting adjacent tappings and moving two tappings at a time, thus "leap-frogging" each other. A further change-over type switch U is provided, operation thereof connecting the contact k with one end of the winding Gw or with the electrical connection between the switches G and W. In operation as the arms Fal, Fa2 of the tapping selector switch F are moved around the tappings a pin B associated therewith operates the switch U by means of a Geneva mechanism M 1  and thereafter the switches G and W by means of a second Geneva mechanism M2, the arms of the switch F moving around the circle a requisite member of times to complete the whole operation from maximum buck to maximum boost or vice versa. Connection to an electrical source is made at terminal Z and to a load at terminal A. A load diverter switch can be incorporated to permit switches G, W to be operated under no-load conditions.
Patent GB-112830-A (GB)
Title: Improvements in Ball Cocks.
Inventor: ALDRED ROBERT ALFRED
IPC: F16K33/00
Filed: 1917-02-01
Abstract: 112,830. Aldred, R. A. Feb. 1, 1917. Ball and' float valves.-A float A of the kind adjustably secured to the float lever C is shaped with the joint a towards the top and is provided with a lug B by means of which it is secured to the lever. In the form shown, the lug is gripped between a pair of nuts D screwed on to the lever. In a modification, the lug is directly screwed on to the lever; and in a further modification, both lever and lug are unthreaded and secured together by a cotter. According to the Provisional Specification, the cotter may be replaced by a, set-screw.
Patent GB-1298924-A (GB)
Title: Supporting mechanism for multiple closure gates on bottom pour vessels
Inventor: LANATTI JOSEPH HOBART
IPC: C21B3/10
Filed: 1970-01-13
Abstract: 1298924 Discharging molten metals USS ENGS & CONSULTANTS Inc 13 Jan 1970 [16 Jan 1969] 1677/70 Heading F4B A supporting mechanism for multiple gate means (24, 25) slidable along parallel paths for closing a pair of outlet openings (13, 14) in a bottom-pair vessel, a gate means being associated with the bottom of each outlet and being longitudinally movable on the supporting mechanism for selective alignment of a solid portion or a nozzle portion of the gate means with the associated outlet opening for respectively closing the outlet opening or permitting flow therethrough; the supporting mechanism comprises a row of yokes (33) mounted on the bottom wall of the vessel between the two paths, and spring means (35) urging the yokes upwardly for support of the adjacent edges of the gate means. The support means for the outer edges of the gate means includes a row of levers (19) pivoted to the bottom wall alongside each outer edge of the gates and spring means (22) urging the outer ends of the levers downwardly.
Patent GB-112832-A (GB)
Title: Improvements relating to Railway Signalling.
Inventor: FREEMAN FRANCIS JAMES
IPC: B61L3/04
Filed: 1917-02-02
Abstract: 112,832. Freeman, F. J. Feb. 2, 1917. Track apparatus actuating signals on trains and for stopping trains.-Audible or visual signals and brake valves are operated by means of a spring- actuated lever h, which is normally held out of action by a pivoted train-contact lever l, the upper end of which is shaped to engage the lever h. The device is reset by the handle f. In addition to this device, an audible signal which is sounded twice at each operation may be used. Fig. 4 shows a spring-driven toothed wheel p, normally held by the train-contact lever l, and gearing with a wheel t, which is rotated twice at each release. The disk t is linked to the whistle valve and opens and closes the valve at each revolution. The track contacts may be rails moved about horizontal axes parallel to the track rails or knuckle-jointed pivoted arms. Duplicate track contacts may be provided for reversed running and for danger and clear signals and for home and distant signals.
Patent GB-1183902-A (GB)
Title: Ball-crusher
Inventor: ANDRE ROGER
IPC: B02C17/08
Filed: 1968-01-11
Abstract: 1,183,902. Ball mills. COMMISSARIAT A L'ENERGIE ATOMIQUE. 11 Jan., 1968 [23 Jan., 1967], No. 1711/68. Heading B2A. A ball crusher particularly for radioactive materials comprises a base 2, Fig. 1, for a cradle 16 which supports a crushing vessel 32. A motor (not shown) rim-drives a plate 10 so that the cradle 16 and the plate 10 rotate around the axis of a shaft 4 and the cradle 16 simultaneously rotates around a shaft 12. The crushing vessel 32 thus performs a planetary motion and balls 35 crush material in the vessel. The vessel and balls may be of agate. The vessel 32 is charged from a crucible 34, placed on a plate 78, by inverting the vessel over the crucible. The crucible and vessel are then locked together and the combination rotated through 180‹. After comminution the combination is again turned through 180‹ and the crucible and powder removed. The balls are retained by a screen 58. All fastenings have e.g. wing nuts as at 48 or fingers as at 44 to permit operation by a telemanipulator.
Patent GB-637444-A (GB)
Title: Improvements relating to containers having means for discharging therefrom loose material within the container
IPC: B60P1/36
Filed: 1947-03-20
Abstract: 637,444. Cauldrons. CHILVERS, D. March 20, 1947, No. 1776. [Class 107] [Also in Group XXX] In a self-propelled vehicle for distributing gravel and other road surfacing materials provided with a container having two pairs of opposed oppositely-inclined walls, which provide hoppers for the grit, and a belt or other conveyer arranged below the discharge openings, a tank 11 for tar or other binder is situated between walls 5 and the container floor 3 and is provided with a filler tube 12. Burners 16 are located at intervals along the spaces between walls 5 and 6 on either side of the tank below curved partition walls 23 and are fed with fuel by means of a pump driven by a motor at the rear end of the vehicle, not shown, which also pumps tar to a distributor and drives conveyer 13 through clutch and reversing gear. Openings 33 covered by hinged flaps 34 enable the burners to be lit, air for combustion being drawn through holes 20 in floor 3. Part of the hot gases is drawn through holes 27 in walls 5 to heat the tank 11  and then pass to a chamber 25 leading to a chimney 26 whilst curved partition 23 deflects some of the gases through holes 21 in walls 6 to heat the conveying chambers and these then pass through holes 22 into the space between walls 5 and 6 above partition 23 and thence between upper and lower walls 7 and 4 to the chamber 25. Means may be provided, not shown, for controlling the flow of gases. Part of bottom wall 3, walls 5 and the top of tank 11 may be lined with heat insulating material 37.
Patent GB-122502-A (GB)
Title: Gramophone Tone-arm.
Inventor: PUGH FREDERICK GEORGE
IPC: G11B3/00
Filed: 1918-02-01
Abstract: 122,502. Pugh, F. G. Feb. 1, 1918. Tone-arms.-A tonearm of spiral or like coiled shape and formed of hard wood, preferably mahogany, is worked in two similar halves from solid blocks which are afterwards glued together. In the form shown in Fig. 1. the sound-box 1 is placed at the centre of the coil. and the tonearm widens outwardly to the pivotal outlet 2. A weight may be employed to balance the tone-arm about its pivot. In another form, the pivotal outiet is at the centre of the coil and the sound box at the rim. A straight wooden tone-arm may be used in combination with the coiled tube, which is then placed inside the gramophone casing.
Patent GB-1243490-A (GB)
Title: Electric signal chopper
Inventor: HILL WALLACE JAMES
IPC: H01H36/00
Filed: 1969-12-18
Abstract: 1,243,490. Movable magnet switches. TUDOR CONTROL SYSTEMS Ltd. 18 Dec., 1969, No. 2005/71. Heading H1N. An electric signal chopper has fixed contact units connected in a circuit carrying the signal to be chopped and radially spaced operating members rotatable along respective paths adjacent contact members, with a plurality of operating members in the outer path. The invention is described with reference to the switches of the parent Specification 1,241,943.
Patent GB-357463-A (GB)
Title: An improved foot support sock
IPC: A61F13/08
Filed: 1931-01-22
Abstract: A support of soft wood, shaped to the foot arch, is secured as by glueing, to a sock made of threeply wood.
Patent GB-547223-A (GB)
Title: Improvements in or relating to devices for protecting the human body and other objects from heat and flame
IPC: A62B17/00
Filed: 1941-02-17
Abstract: 547,223. Goggles. DAVIS, Sir R. H. Feb. 17, 1941, No. 2156. [Class 97 (i)] [Also in Groups XIII, VII and XII] A device for protecting objects or persons from heat and flame comprises an asbestos or similar fire-proof covering or screen with an outer layer of wire gauge spaced therefrom by distance pieces which may be made of porcelain, mica, glass &c. Windows or eyepieces may be provided in the device which may take the form of a portable screen, or of a complete suit, glove, hood, face-mask, boot, legging or other article of attire. Fig. 4 shows a window 9 protected by gauge 11 and carried by a frame 10.
Patent GB-204262-A (GB)
Title: Improvements relating to blast furnace tuyeres and the like
IPC: C21B7/16
Filed: 1923-01-25
Abstract: 204,262. Goldsbrough, R. E., and Goldsbrough Patents Co., Ltd. Jan. 25, 1923. T u y e r e s.-A tuyere is constructed with an inner part a having an external helical thread c fitting into an outer cover b, the cooling fluid entering by a pipe h and circulating through the passage formed by the thread, and through a pipe f to the outlet p. The two parts a, b are separated by removing bolts m, to permit of the passage or coil being cleaned out.
Patent GB-911706-A (GB)
Title: Improvements in or relating to sealing means for thin walled tubular members
Inventor: BALL THOMAS FREDERICK
IPC: B23K9/028
Filed: 1960-01-21
Abstract: 911,706. Welding by fusion. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Jan. 12, 1961 [Jan. 21, 1960], No. 2322/60. Class 83 (4). A thin-walled tubular member 5 is joined to a surrounding member 8 by mounting a close fitting sleeve 6 on the tubular member 5, the sleeve 6 being several times as thick as the tubular member 5 and being connected to or integral with the surrounding member 8, and forming an annular fusion weld 10 remote from the ends of the sleeve 6 and penetrating to the surface of the tubular member 5. The tubular member 5 is a stainless steel tube enclosing a cable 4 passing through the surrounding member 8 which is part of a pressure vessel. The weld 10 is formed by an argon shielded tungsten arc. The sleeve 6 is clamped or welded to the plate 8. A second annular weld spaced from the first may be provided.
Patent GB-664700-A (GB)
Title: Improvements in or relating to laminated sheets
Inventor: KNEWSTUBB NORMAN WATSON
IPC: B32B27/00
Filed: 1949-01-27
Abstract: 664,700. Laminated sheets. BAKELITE, Ltd. Dec. 2, 1949 [Jan. 27, 1949], No. 2328/49. Class 145 (ii) [Also in Group VIII] A laminated sheet, having one or both surfaces suitable for gluing to other surfaces such as wood or plywood, is prepared by superposing fibrous sheets impregnated or coated with thermosetting synthetic resin, interleaving at one or more places a single sheet of paper not treated with the resin, moulding under heat and pressure, and splitting in the planes of the interleaving paper. The latter must be sufficiently porous to bond effectively to the laminated board of which it is to form part but not so porous as to become impregnated during moulding to the extent that separation in the plane of the paper becomes difficult. A suitable example is hard 1-1¢ mils tissue paper. The fibrous sheets may consist of paper, textile material, or wood veneer. Specification 495,917, [Group VIII]. is referred to.
Patent GB-844034-A (GB)
Title: Grinder with compensating trimming mechanism
IPC: B23F23/12
Filed: 1959-01-22
Abstract: 844,034. Grinding, trueing grinding wheels. NATIONAL BROACH & MACHINE CO. Jan. 22, 1959 [March 3, 1958], No. 2389/59. Class 60. A grinding machine, particularly for grinding gear teeth, comprises a grinding wheel 26 mounted on an adjustable column 14, a slide 80 which carries trueing means 82 for the grinding wheel and is movably mounted on the column, and a screw 72 having separate nuts 68, 98 engaged thereon, the screw and nut 68 constituting means for adjusting the column 'and the screw and nut 98 means for adjusting the slide 80 on the column. The grinding wheel 26 and driving motor 32 therefor are mounted for lateral adjustment on a table 16 carried at the top of the column 14 which is movable vertically in a hollow frame portion 12. The compound screw 72 is held for rotation, cut against endwise movement in the table 16 and with the screw threaded portions 74, 76, which respectively engage the nuts 68, 98, of opposite hand. The nut 68 is mounted for rotation in a housing 48 secured to the frame portion 12 and has an outer gear portion 70 meshing with a gear wheel 62 arranged to be driven through irreversible worm gearing 54, 60 from a handoperated shaft 52. The nut 98 is non-rotatably in the slide 80, and a worm gear 86 fixed to the shaft 72 above the nut meshes with a worm 88 on a hand-operated shaft 90 extending outwardly of the column. Rotation of the shaft 52 rotates the nut 68 and so raises or lowers the column and associated mechanism. Rotation of the shaft 90 rotates the shaft 72 in the thenstationary nut 68 and therefore raises the column together with the associated mechanism; the rotating shaft also causes the independent movement of the slide 80, upward movement of the column being accompanied by an equal upward movement of the slide on the column to compensate for trueing. The trueing tool 82 may consist of a pivotally-mounted diamond and be controlled by a template.
Patent GB-1041704-A (GB)
Title: Improvements in and relating to synthetic plastic leaf or film
IPC: C08J9/06
Filed: 1964-01-20
Abstract: A leaf or film of synthetic organic plastic material comprising a cellular layer having a continuous smooth surface skin of the same material integrated with the cellular layer is prepared by fabricating a starting leaf or film with a smooth surface skin from a mixture based on a synthetic thermoplastic material and a blowing agent which decomposes with the evolution of a gas at a temperature between the softening temperature of the mixture and the melting point of the mixture, immersing the starting leaf in an inert liquid which is less dense than the unexpanded leaf at a temperature at least equal to the decomposition temperature of the blowing agent, removing from the liquid a leaf or film of the synthetic plastic material comprising a cellular layer covered by at least one surface layer and washing the leaf or film with a solvent for the inert liquid.  A suitable thermoplastic material is polyvinyl chloride and among suitable blowing agents is azodicarbonamide. The inert liquid may be a polyethylene glycol or an emulsifiable silicone oil.  To produce a leaf which is capable of "breathing" a filler which is soluble in the liquid in which the washing is later effected may be incorporated in the mixture before expansion.  A suitable filler is pentaerythritol. Alternatively a hygroscopic filler such as cellulose powder may be incorporated in the mixture before expansion so as to render the leaf more or less absorbent with regard to moisture. Plasticizers, stabilizing agents and lubricants may also be added to the mixture.
Patent GB-719182-A (GB)
Title: Improvements in and relating to manifolding stationery
IPC: B41L1/32
Filed: 1953-01-28
Abstract: 719,182. Manifolding stationery. BURGMER, J. Jan. 28,1953 [Jan. 28, 1952], No. 2468/53. Class 16 Manifolding stationery in continuous forms and having alternately arranged record and carbon paper sheets, is secured by the first and last record sheets, a1 and a5, having fixed strips b at both longitudinal edges which are connected, as by gluing or the like, at one edge with corresponding fixing.strips b arranged at one side of the other record sheets a2, a3, a4: and at the opposite edge with the carbon paper sheets c1, c2, c3, c4. The strips b are joined to the record sheets by perforations d and transverse perforations e divide the strips into sets. The fixing strips may be connected by gluing at staggered points only.