baber/WOPTO huggingface dataset:
Patent GB-920839-A (GB)
Title: Improvements in weighing instruments
Inventor: GRACE ARTHUR CHARLES
IPC: G01G19/00
Filed: 1960-05-23
Abstract: 920,839. Weighing apparatus. L. OERTLING Ltd. May 23, 1961 [May 23, 1960], No. 18050/60. Class 143. A weighbeam has a load carrier associated with one end and auxiliary means associated therewith for obtaining an approximate measure of the weight of the load, means being provided for bringing the load carrier into operative association with said auxiliary means when the load carrier is not in operative association with the weighbeam. The pan 19 in which the load is placed depends from a shackle 15 which has an upper plane 16 and a lower plane 17. The lower plane 17 rests on a knife-edge 4 at the end of the weighbeam 1 and the upper plane 16 rests on a knife-edge 11 at the free end of a leaf spring 10 which, at that free end, just rests on a steel point 8 carried at the end of an auxiliary beam 5, the required condition being obtained by an adjusting screw 7. In operation, the auxiliary beam and spring, which are at right angles to the weighbeam 1, are raised by a cam 13 on a shaft 14, through a lift rod 12, until the shackle is picked up on the knife-edge 11. A cam 25 on the shaft 14 operates a micro switch 23 to cause a lamp to illuminate a graticule 22, which follows the movement of the beam 5, and an approximate indication of the weight is therefore given. Weights are accordingly set for the beam by weight-manipulating dials and the shaft 14 is turned in the reverse direction until the shackle is lowered on the knifeedge 4 and the beam 1 is released for action. The final weight may then be found from the settings of the weight-manipulating dials and the reading of a fine graticule, the illumination of which is brought into action by a microswitch 24.
Patent GB-1397412-A (GB)
Title: Communication systems and apparatus for use in such  systems
IPC: H04K1/06
Filed: 1971-05-28
Abstract: 1397412 Secret transmission; television GENERAL ELECTRIC CO Ltd 26 May 1972 [28 May 1971] 18053/71 Headings H4R and H4F Successive portions of an input signal are jumbled by giving each portion a time delay corresponding to a number of portions where the number for each portion varies in a pseudorandom sequence and the signal is then transmitted to provide secret communication to a receiving terminal where the portions are given a complementary time delay so that they can be re-assembled into their original order. In the system shown, the time delay of stores 10-16, 46-60 determines the unit length of signal that can be considered as a portion. The filling and emptying of the stores occurs in the same pseudo-random order in both the transmitter, Fig. 1, and receiver, Fig. 2, under the control of the switches shown. In the transmitter, Fig. 1, the pairs of switches associated with each store 18, 30 operate together so that the incoming signal is divided into four portions which are stored in the respective stores where they recirculate until the output switch is next closed in the pseudo-random order to transmit the portions in a jumbled order. The corresponding receiver has eight stores which are operated in groups of four with the group 46-52 storing the first received four portions of the transmitted signal and the second group of four portions received are stored at 54-60. Switches 62-68 and 70-76 operate on the same pseudorandom sequence as the transmitter switches to provide this storage. The output switches are controlled by a pseudo-random sequence which is the same as the transmitter one but delayed by eight time delays and commences with switch group 88-94 followed by switches 80-86. This operation of the receiver switches provides an output signal on line 78 which is substantially identical with the input signal. In a modification the transmitter has six stores arranged in series with the interconnecting junctions connected to an output line through individual switches which are operated in a pseudo-random manner, Fig. 3 (not shown). The corresponding receiver can have its series connected stores junctions connected to the input line through switches, Fig. 3 (not shown), or can have changeover switches used to normally make the series connection but when operated to make connection to the input line, Fig. 4 (not shown). A video system where both the camera and receiver have their vertical scan provided on a pseudo-random basis is disclosed, Figs. 7 and 8 (not shown).
Patent GB-1470831-A (GB)
Title: Leaf spring
IPC: F16F1/26
Filed: 1974-04-25
Abstract: 1470831 Leaf springs STAHLWERKE BRUNINGHAUS GmbH 25 April 1974 [26 April 1973] 18059/74 Heading F2S A parabolic leaf spring has central clamping means clamping a plurality of elongate spring spring leaf members 1, 2, 3, and two further clamping means 8 located near respective ends of the leaf spring, each comprising a clasp member 9 defining a channel through which at least two of the leaf members 1, 2, 3, extend, at least one rubber plate member 12 disposed within the channel, and a strip member 10 secured to the clasp member 9 to so clamp the leaf members 1, 2, 3, between facing surfaces of the strip member 10 and the clasp member 9 that the rubber plate member 12 is compressed to exert a predetermined force perpendicular to the leaf members 1, 2, 3, at least one of the major surfaces of the rubber plate member 12 being vulcanized to the adjoining surface of an element of the further clamping means 8. The outer clamps 8 may be located by riveting, Figs. 3, 4, 5 (not shown) or Fig. 1, by welding, Fig. 6 (not shown) or by means of a projection 17, Fig. 2a (not shown). The rubber plate member is shown to include a sheet metal plate vulcanized to one face of the rubber, Fig. 2a (not shown) or between two rubber layers, Fig. 3a (not shown). Figs. 5 and 6 (not shown) illustrate an embodiment where the rubber is vulcanized between two metal sheets, one of which, e.g. 24, Fig. 5b (not shown) is located within a depression 26 in the clasp member 9.
Patent GB-915963-A (GB)
Title: Electrolytic treatment of ferrous metal surfaces
IPC: C25D11/38
Filed: 1959-05-27
Abstract: 915,963. Protecting iron and steel surfaces electrolytically. YAWATA IRON & STEEL CO. Ltd. May 27, 1959 [May 30, 1958], No. 18127/59. Class 41. Iron and steel surfaces are protected and made corrosion resistant by cathodically treating with an electrolyte containing chromic anhydride, boric acid, phosphoric acid and a trivalent chromium ion which may be present as an added chromium salt, e.g. chromium acetate, or formed by adding a reducing agent, e.g. oxalic acid, which reacts with part of the chromic anhydride. It is stated that the coating includes chromium phosphate and chromium chromate. The preferred electrolyte contains per litre, 10 to 20 g. CrO 3 , 1 to 5 g. tri-valent Cr ions, 3 to 10 g. phosphoric acid and 1 to 20 g. H 3 BO 3 , and is used at 15 to 80 C., applying 10 to 300 A.S.F. for about 1 second. The surface is then allowed to drain, and dry.
Patent GB-384591-A (GB)
Title: Improvements in superheterodyne wireless receivers
IPC: H03D7/08
Filed: 1932-06-27
Abstract: 384,591. Valve circuits for wireless reception. WULLENWEBER, O., 19, Philip Schousvej, Copenhagen. June 27, 1932, No. 18138. Addition to 382,057. [Class 40 (v).] In a supersonic heterodyne receiver, the grid of a combined oscillating and detecting valve g is connected through alternating current resistances l, k to the circuits m, f tuned respectively to the received and the local frequency. A screened grid valve is used as the combined oscillator and detector.
Patent GB-658728-A (GB)
Title: Apparatus for treating textile materials
IPC: F26B13/04
Filed: 1949-07-08
Abstract: 658,728. Drying fabrics in long lengths. REDMAN, F. R. July 8, 1949, No. 18141. Convention date, Aug. 19; 1948. [Class 34(i)] Fabric is dried in an apparatus having a conveyer 11 comprising successive basket loops 35 of foraminous material movable through a horizontal run, the fabric F being deposited loosely in the basket loops and devoid of tension. The fabric is fed to the conveyer at a rate greater than the speed of the latter and is blown into the successive loops by means of a transverse air nozzle. The conveyer passes through a housing having a number of sections each of which has a fan to supply hot air to air heads 41 above the conveyer and air heads 42 below the conveyer, the air heads having nozzles 43 and 44 respectively directed towards the conveyer in staggered relation and through which the hot air is blown to dry the fabric. The ejected air is drawn through a filter around heating pipes and returned to the nozzles by the fans.
Patent GB-477771-A (GB)
Title: Improvements in insulating casings for electrical apparatus
IPC: H02B1/00
Filed: 1936-07-01
Abstract: 477,771. Junction boxes; meter casings. ALLGEMEINE ELEKTRICITATS - GES. July 1, 1936, No. 18293. Convention date, July 1, 1935. [Classes 37 and 38 (i)] An insulating-casing for electrical apparatus such as a meter has the back wall bent inwards at 8 to form a chamber to accommodate projections on the terminals 6, connection between the terminals and the apparatus taking place through holes 10 in the front wall of the chamber by means of screws. The chamber may be filled with insulating material or closed by a cover 9. The terminals are supported in a casing 5, which may be moulded integrally with the main casing, and are introduced trom the front.
Patent GB-683440-A (GB)
Title: Improvements in or relating to blinds
IPC: E06B9/323
Filed: 1950-07-21
Abstract: 683,440. Window blinds. LISLE, U. L. ORCHARD-. July 23, 1951 [July 21, 1950], No. 18305/50. Class 20(iii) In a pulley head for Venetian reef-up, pleated and like blinds, the head mechanism is concealed by a bar having a flange 1 upstanding in front of the head mechanism and a second flange 2 extending below the head mechanism. A lip 3 on the flange 1 rests on brackets 4 and the flange 2 rests on lips 7 projecting from the brackets 4 by which the assembly is secured to its support. The head is secured to the bracket by screws 9. In a modification, Fig. 2, the brackets 11 are shaped so as to serve as the end plates of the head.
Patent GB-712632-A (GB)
Title: A method of, and apparatus for packing biscuits into tins and like containers
Inventor: PAGE ALFRED CORNELIUS
IPC: B65B23/10
Filed: 1951-08-02
Abstract: 712,632. Packaging biscuits. WRIGHT'S BISCUITS, Ltd. July 16, 1952 [Aug. 2, 1951], No. 18309/51. Class 94 (1) The methods of, and apparatus for, inserting biscuits into tins described in Specification 670,611 are simplified in that the insertion of the charges of biscuits and the lowering of the tin after the insertion of each layer is effected manually. Biscuits 10, Fig. 1, are caused to push one another from behind through a sleeve or channel 14 on to an open loading platform 15 and are maintained on edge as they move across the platform by a spring-loaded buffer 17, Fig. 4, slidable in the side wall 16 of the platform. When a charge has been assembled, a pusher 19, which is bifurcated to embrace the buffer, is operated manually to move the charge to an assembly position 20 on a plate 21 which extends into a tin 22 supported on a wider tray 25 resting on one of a plurality of sets of slides 24 adjustably secured to a rack 23. The sets of slides are spaced vertically by a height equal to the height of the biscuits and their free ends are stepped to facilitate the positioning of the tray. After three charges have been assembled on the plate to form a layer, the pusher is given a longer stroke to move the layer into the tin and push the.tin off the end of the plate 21. The tray and tin are then positioned on the next lower set of slides, a further layer of biscuits is inserted and the operations repeated until the tin is full. In a modification, the charges of biscuits are not assembled at position 20 but are moved directly from the platform 15 into the tin over the plate 21, the insertion of the last charge to complete a layer pushing the tin clear of the end of 'the plate. The latter is formed with side guides 40, the forward ends of which are extended as spring fingers 41 which enter the tin to locate it and to hold in position any paper or other packing. The end of the plate is formed of light spring steel and is turned upwardly so as to be depressed by the weight of the biscuits as they enter the tin. Specification 712,668 also is referred to.
Patent GB-1158819-A (GB)
Title: Sanding machine
IPC: B24B21/12
Filed: 1968-04-18
Abstract: 1,158,819. Sanding. CARBORUNDUM CO. 18 April, 1968 [21 April, 1967], No. 18312/68. Heading B3D. Apparatus for urging an abrasive belt against a workpiece comprises a contact roll engageable with said abrasive belt and having an axis of rotation, and means mounting said contact roll for free rotation about an axis normal to a vertical plane including the axis of rotation of said contact roll. An automatic stroke sanding machine comprises an endless abrasive belt 24 trained round pulleys 20, 22 journalled on a frame 12 supported by pedestals 14, 16 on a base 18. Either of the pulleys may be driven. A work-table 32 has rollers 30 running on guide rails 26, 28 secured to the pedestals; the work-table is reciprocated manually or by automatically controlled means. An endless conveyer belt may be used in lieu of the worktable. Alternatively, the work-table may be stationary and the frame 12 have rollers running on guide rails mounted on the pedestals or on a ground surface. A slide 42, slotted at 120 to reciprocate on a guide bar 122 has a cable rope 44 secured to its ends, the rope being trained round pulleys 114, 116 secured on the frame 12 and wrapped about a winding drum 118 rotated alternatively in opposite directions by an hydraulic motor. A bracket 50 secured to the slide 42 has a dovetail slot 52 in which is slidably mounted a member 54 secured in adjusted position by set screws 56. A flat plate 58 is secured to the member 54 and has secured thereto blocks 62 housing bearings 64 which permit free rotation of a shaft 66. The blocks have grease fittings 76. A flat plate 78 is secured to a flat portion 77 on the upper side of the forward end of the shaft 66. The bight portion (84) of a yoke member is secured to the plate 78; the arms 86 have slots 94 receiving the end portions of a shaft 106 on which a contact roll 82 is journalled by bearings (110). Rotational movement of the yoke about the axis of shaft 66 is limited by adjustable stop screws (91), 93 on lugs (95), 97.
Patent GB-263055-A (GB)
Title: Means for dissipating heat in pistons
IPC: F02F3/18
Filed: 1926-07-22
Abstract: 263,055. Reddie, L. N., (Soc. Anon. Diremo). July 22, 1926. Pistons; cooling. - An aluminium piston is formed with a thin crown, behind which is a cavity b containing powdered metal of high conductivity, such as copper. The cavity is closed by a hollow screw plug c, which compresses the powdered metal.
Patent GB-801790-A (GB)
Title: Improvements in heat-insulating panels
IPC: E04C2/54
Filed: 1956-06-14
Abstract: 801,790. Transparent building panels. INGRAM, G. May 13, 1957 [June 14, 1956], No. 18392/56. Classes 20(3) and 87(1) A transparent building panel comprises a frame 1 of wood, aluminium, cork or stiff plastic material, enclosed by a single sheet 2 of polythene, fibre-glass, etc.; the sheet 2 is wrapped around the frame and heat-sealed at its overlapping edges. A single cavity 3 may be formed, as in Fig. 1, or the opposed portions of the sheet may be flexed inwardly and joined together by spot-welding &c. at spaced positions, as in Fig. 4. In a further modification, Fig. 5, the cavity is subdivided by webs 4 of translucent plastic material. The sheet 2 may be reinforced by wire mesh or by extra pieces of stiff plastic material. Valved apertures may be provided in the frame for inflating or evacuating the cavity.
Patent GB-1038016-A (GB)
Title: Sliding vane motor or pump
IPC: F02B53/00
Filed: 1964-05-04
Abstract: 1,038,016. Rotary vane motors and pumps. E. F. HANSON. May 4, 1964 [May 22, 1963], No. 18393/64. Heading F1F. [Also in Division F2] A rotary vane motor or pump of multiple abutment type, comprises a cylindrical casing 12, Fig. 3, having a cammed inner surface 15, and closed at its ends by end caps 26, Fig. 2, supporting in bushings 24 a shaft 22 carrying a rotor 18 formed with slots 38 slidably mounting vanes 14. The shaft 22 is formed with an axial inlet passage communicating through radial ports 48 with the bottoms of the slots 38. As shown, the cammed inner surface is formed with three lobes 16 to provide three working chambers 20 each of which is connected by a port 52 with an exhaust passage 50. Each vane is formed on its rear face with a plurality of slots 46 which when the vane is fully or partly extended permits the entry of pressure fluid into a working chamber behind the vane. When pressure fluid (compressed air) is admitted to the passage 32 the vanes 40 are urged outwardly into sealing contact with the surface 15 and with the casing 12 held stationary the rotor 18 is rotated anticlockwise and with the rotor 18 held stationary the casing 12 rotates clockwise. In a modification, the shaft 22, Fig. 6 (not shown) is made solid and the inlet passage 56 is formed in one of the end caps 26 communicating with the slots 38 through annular recesses 58 formed at the ends of the rotor 18. In another embodiment, an inlet passage is formed adjacent each exhaust passage 50 with the inlet passages opening into the working chambers on the forward faces of the lobes 16 and the exhaust passages on the after faces thereof. In a still further modification, both the inlet and exhaust passages are formed by axial passages in the shaft, one each from either of the shaft with an intervening barrier. The invention may also be employed operating as a vacuum pump (Fig. 17, not shown) or as a brake or governor (Figs. 14 to 17, not shown).
Patent GB-1497732-A (GB)
Title: Carrier particles suitable for electrostatographic developers
IPC: G03G9/113
Filed: 1975-05-02
Abstract: 1497732 Developer carrier particles XEROX CORP 2 May 1975 [30 May 1974 (2)] 18406/75 Heading G2H Carrier particles, suitable for use with toner particles to form an electrostatographic developer, are selected to have a specific surface area of at least 150 cm<SP>2</SP>/gram and preferably have a particle size volume distribution geometric standard deviation (defined in the Specification) of less than 1À3 and an average particle size diameter of less than 100 microns. Any known carrier material may be classified to produce carrier particles, which may be coated or uncoated, of the required size. In the Examples, nickel-zinc ferrite particles are coated with a known plastics coating material, are classified by sieving and then mixed with known toner particles.
Patent GB-108108-A (GB)
Title: Improvements in Automatic Pressure-releasing Devices for the Rollers of Clothes Wringers.
Inventor: WRIGHT REA PATTISON
IPC: D06F45/00
Filed: 1916-12-22
Abstract: 108,108. Wright, R. P. Dec. 22, 1916. Wringers, roller-separating arrangements for.- The top-bar is automatically released from a pair of pivoted latches, when the upper roller is unduly raised, by means of cams formed on the upper roller axle or bearings. The latches 17 are formed with extensions 18 to which are adjustably mounted trip members 21 situated just above the conical extensions 25 of the upper roller axle. If a foreign body is drawn between the rollers, the cam ends 25 rise and force the trip members 21 inwards, and the latches outwards, thus freeing the top bar. A bevelled extension of the upper bearing may replace the axle cam 25.
Patent GB-353636-A (GB)
Title: An improved regulating device for an automatic automobile clutch
IPC: B60K23/02
Filed: 1930-06-17
Abstract: 353,636. Operating clutches. JANDER, H., 51, Emdenerstrasse, Berlin. June 17, 1930, No. 18478. Convention date, July 5, 1929. [Class 80 (ii).] In means for automatically controlling motor vehicle clutches bv engine suction, the induction pipe 4 is connected to a valve chamber 8 communicating by a passage 18 with a chamber containing a piston vane 22, the shaft 23 of which carries a pulley 24 connected by a rope or chain pull 25 to the clutch pedal 26, so that on the valve 9 being opened the suction of the engine disengages the clutch. The valves 9, 10 are operated by an electromagnet 17, the circuit of which is made and broken by contacts 35, 36 during the initial movement of the accelerator pedal 1. The lead 28 to the winding 27 is preferably connected to the main cable 30 of the ignition battery 31 beyond the battery switch 29 and, to save current, a manual switch 34 may be included in the lead 33, so that, by opening it, the clutch can be operated by the normal pedal 26 during prolonged light running of the engine. In a modification, Fig. 2 (not shown), further contacts are mounted on the grip of the change-speed lever in parallel with the contacts 35, 36, so that the clutch can be taken out for gear-changing without interrupting the fuel supply.
Patent GB-120910-A (GB)
Title: Improvements in or relating to Change Boxes for Photographic Cameras.
Inventor: ROTHMEYER CHARLES
IPC: G03B17/34
Filed: 1918-11-12
Abstract: 120,910. Rothmeyer, C. Nov. 12, 1917, [Convention date]. Change-boxes.-A change-box of special construction is loaded and unloaded in daylight by means of a specially constructed loading-slide adapted to be fitted on a store-box. The store-box has sliding shutters forming two of its opposite faces, and a wall between and parallel to the shutters dividing it into compartments for exposed and unexposed plates respectively. Flanges surround the shutter openings to enable the loading-slide to be fitted in a light-tight manner to either compartment. The loading-slide comprises a box, Figs. 8 and 9, having a sliding shutter k at the front and a removable bottom f fitted with bars f<1>. The bottom f is capable of being secured to the loading-slide by means of sliding lugs f<2> engaging catches p and operated by finger pieces f<3>. It is fitted with studs f<4> which may be passed through holes in the bottom of the change-box (shown in Fig. 5) and held by a sliding plate f<5> having slots f<6>. The back of the loading-slide is fitted with arms l pivoted at l<1> and pressed forward by springs m. A sliding plate n having lugs n<1> engaging the arms l is drawn upwards when it is desired to hold the arms against the back of the slide. Spring catches h are fitted on the sides of the loading-slide to engage stops fitted within the sides of the change-box near the top. The changebox has an open top, a sliding shutter at the front, and an aperture d<4> in the bottom, Fig 5, into which the finger-pieces f<3> project so that they may be operated. The unexposed plates in one compartment of the store-box are transferred to the leading-slide by placing the slide with its shutter towards the shutter of the store-box, drawing the shutters, and letting the plates fall into the slide, the springs m being held out of action. The slide shutter is then replaced and the slide is passed into the change-box through its open top. The bottom of the slide is then disconnected from the slide and secured to the change-box, the plate n is pushed down to free the springs m, the shutter k is withdrawn to allow the springs to force a plate into the focal plane, and the exposure is made. The shutter k is then replaced, separating the exposed plate from the others, the slide is drawn out of the change-box to the extent determined by the catches h, the plate is allowed to fall back on to the bars f<1>, and the slide is again pushed into the change-box. The necessary operations are repeated until all the plates in the change-box are exposed, and the slide is then removed and applied to the store-box to enable the plates to be transferred thereto.