baber/WOPTO huggingface dataset:
Patent GB-1379342-A (GB)
Title: Shaping presses
IPC: B21D43/10
Filed: 1973-05-25
Abstract: 1379342 Shaping presses SOC NATIONALE INDUSTRIELLE AEROSPATIALE 25 May 1973 [8 June 1972] 25150/73 Heading B3E A press for shaping elongate metal panels P comprises a press frame A, supports H disposed on either side of the press frame for the panels, and a supporting beam C for a carriage (97), Fig. 17 (not shown), having a depending bracket Ea, Eb for gripping an end of the panel, arranged either side of the press frame. The press frame also includes a punch carrying carriage B. A table H includes vertically adjustable rollers I for conveying the panels and brackets J which have gauges K for checking the shaping of the panels. A gripping member M is utilized in combination with grippers G of the carriages (97) for turning over the panels. The position of the movable members of the press can be determined and displayed on a board N to allow automatic displacement of the members. The punch carrying carriage B is displaceable along rails 5 by a chain 23 driven by a motor 24 via transmission 25 and the tool carrier 17 is vertically displaced by a jack 13. The too carrier 17 has at least one U-shaped member 19 and preferably a pair of member 20 which can be orientated at various angles in relation to the frame to co-operate with rails 52 disposed on the table 3 in members 50, 51, Fig. 10 (not shown). Vertical displacement of the tool is measured by a sensor 33 which transmits the information to a coding device 34 for display on board N. A coder (36), Fig. 3 (not shown), evaluates the displacement of the carriage B along the frame A. The members 19, 20 are adapted to receive detachable rails (38), Fig. 9 (not shown), whose outer surface is curved for the shaping of the panels. In operation, when a panel P is placed on the rollers I of one of the two tables H a dog-type clutch (111), Fig. 18 (not shown), is actuated to enable motor (101) to cause gripping of the panel by member (Gb) of bracket Eb and then by member (Ga). The two brackets are moved simultaneously in the same direction, at the same speed, to the press frame and the panel is stopped when the position of the panel as determined by a coder (119) coincides with measurements on the board N, whereupon shaping takes place. During the shaping of a first panel, data can be recorded to enable similar panels to be shaped identically. In order to check the shapes the rollers I can be lowered so that the panels P contact the gauges K.
Patent GB-172382-A (GB)
Title: Improvements in talking machines
IPC: G11B17/00
Filed: 1920-09-01
Abstract: 172,382. Gordon, W. E. Sept. 1, 1920. Spring power-storing mechanism.-A gramophone is driven by a spring motor comprising a helical spring energized by pulling a hand lever, means being provided whereby the lever can be advanced step-by-step when desired. The spring 22 is connected to the hand lever 27 by a chain 23, which passes over a wheel 25 connected to a spindle 19 through ratchet mechanism. By this means, when the spring is extended it drives the turntable spindle 11, the transmission being effected from the spindle 19 through chain and other gearing as shown in Fig. 3. The lever 27 is jointed at 44, Fig. 8, and its upper part 43 has pivoted thereto, at 42, the handle 41, which carries a pawl 48 engaging a fixed rack 49. A stop 46 on the part 43 projects behind the handle. With this arrangement, the spring 22 can be stretched to the desired extent, either by a single pull on the handle 41, or by rocking the handle backward and forward on its pivot 42, the coaction of the pawl 48 and rack 49 effecting a stepby-step movement of the lever 27. When the spring 22 has been sufficiently energized, it is brought into action by throwing back the pawl 48 against the stop 46. A spring-controlled arm 38, Fig. 7, carrying a brake-pad 39, extends across a slot in which the lever 27 moves, so that when the lever has been pulled back to the initial position by contraction of the driving-spring, it engages the arm 38 and applies the brake to the turntable 12.
Patent GB-1240639-A (GB)
Title: Combined optical and magnetic transducer
Inventor: ANDREWS BOLEY A
IPC: G07D7/04
Filed: 1970-05-27
Abstract: 1,240,639. Photo-electric currency valedators. VENDO CO. May 27, 1970 [Dec.19, 1969], No.25343/70. Heading G1A. [Also in Divisions G4-G6] A combined optical and magnetic transducer 20 comprises a magnetic core 22 with a transparent gap 24 which may be a glass or quartz spacer and an optical element 36 disposed to sense the optical properties of an article 12 through the gap. In the embodiment described the article is a currency note with magnetic markings 14 carried by a transparent conveyer 10 but may also be, for example, a recording tape; a light source 16 coacts with a diffused-junction silicon photo-voltaic light sensor to determine the transmittance of the note and coil 26 delivers an output through capacitor 32 indicative of the sensed magnetic properties. The same zone of the article is therefore sensed independently and simultaneously for optical and magnetic information.
Patent GB-452540-A (GB)
Title: Improvements in and relating to cellulosic materials and to methods of treating the same
IPC: C08H8/00
Filed: 1935-09-13
Abstract: Moulded products are made from cellulosic material, particularly waste material such as bagasse, sawdust, and cornstalks, by digesting the material with an alkali solution until an acid reaction to litmus is obtained and resinous substances formed from the natural constituents of the material are precipitated on and around the fibres, separating the solid constituents, washing and drying, and moulding under heat and pressure.  In a modification sheets are formed from the treated undried material in accordance with paper making practice, and a number of the dried sheets are moulded under heat and pressure to form laminated board.  A heat-hardening synthetic resin, e.g. a water soluble phenolic resin, may be added to the material before the moulding.  In an example, a charge consisting of 10 lbs. of bagasse, 1 1/8 lbs. of caustic soda and 100 lbs. of water is placed in a digester which is sealed at atmospheric pressure and heated to 180-185 DEG  C. for 18-22 hours.  The mass, which is now acid to litmus, is discharged and filtered, washed and dried.  It may be powdered and moulded without addition of other substances, or synthetic resin, fillers, colouring matter, plasticizers and the like may be added before the moulding.  Specifications 360,637 and 393,412 are referred to.
Patent GB-636066-A (GB)
Title: Improvements in or relating to electricity meters
IPC: G01R11/12
Filed: 1947-09-18
Abstract: 636,066. Supply meters; instrument and meter casings and supports. ELECTRICAL APPARATUS CO., Ltd., and NOBLE, H. F. Sept. 18, 1947, No. 25486. [Class 37] In order to protect the bottom bearing from damage during transit an induction type meter is equipped with a rotor lifting device actuated by the terminal cover. In Fig. 3, terminal cover 29 occupies "meter transit" position with rod 19 spring-urged to press rotor 10 into contact with magnet 12 so that pivot 15 is lifted from bottom bearing 16. When the meter is installed terminal cover 29 is reversed and in this position depresses plunger 33, causing a pin 36 to rock bellcrank 25, whereby link 24 retracts rod 19 against spring 21 and rotor 10 drops into running position. To test the meter with the terminal cover off, plunger 33 is operated by a screw-driver so that pin 36 engaging bell-crank 25 rests in bayonet slot 37.
Patent GB-1509153-A (GB)
Title: Material depth measurement and indication
IPC: G01F23/16
Filed: 1976-06-18
Abstract: 1509153 Depth measuring air gauge: determining cubical content B F WOLFORD 18 June 1976 [27 June 1975] 25492/76 Headings G1M and G1X The depth or volume in Fig. 1 of material 11 in a container 10 is measured by a sensor 20 which comprises a baseboard 21, Fig. 3, sealed and covered by a diaphragm 22 to provide an air space 30 connected by a pipe 51 to an air vent 52, a pressure gauge 53, and a piston 42 which may be moved in its cylinder 41 by rocking a lever 47 about pivot 48. The material 11 such as grain or cement is measured by first of all retracting the piston 42 to the right to suck air to a given negative pressure out of the space 30 in the sensor and allow the diaphragm 22 to flatten over its whole length against the concave backing surface 23. The position of a pointer 61 relative to a scale 60, or the reading of some other indicator, is then noted. The piston is then moved back to push air at a given final pressure into the space 30 and distend the diaphragm 22 away from the backing surface 23 over that part of the sensor not buried in the material 11. The length of distension above the surface 12 is thus measured and directly or indirectly related to volume. In Fig. 5 the piston is replaced by a movable volume of water 72, the quantity of water moved by a pump 74 from a measuring tank 76 being an indication of the proportion of the diaphragm which is not immersed in the material.
Patent GB-693122-A (GB)
Title: Improvements relating to electronic computing apparatus
Inventor: WILLIAMS RAYMOND WILSON
IPC: G06E3/00
Filed: 1950-10-20
Abstract: 693,122. Electric analogue calculating systems. ENGLISH ELECTRIC CO., Ltd. Dec. 21, 1951 [Oct. 20, 1950], No. 25616/50. Class 37. [Also in Group XL (b)] In an electronic multiplying device, polarized light passing successively through two Kerr cells and their associated analysers illuminates a photo-cell whose output signal is proportional to the product of two quantities represented by the voltages applied to the respective Kerr cells, and to which the emergent analysed fraction of the light incident on each cell is proportional. Light from a source 10 (Fig. 1), passes successively through a polarizer 11, a Kerr cell 12, an analyser 13 crossed with the polarizer, a Kerr cell 14, and an analyser 15 crossed with the analyser 13, to illuminate a photo-cell 16. The plates of the Kerr cells are negatively biased from sources 17, 18, and variable voltages u, v proportional to the quantities to be multiplied are superimposed, the direction of the electric field in each cell being orientated at 45 degrees to the plane of polarization of the incident light. When the cells are correctly biased the intensity of light emergent from analyser 15 and thus the photocell output is proportional to (a+bv) (c+du) of the intensity of light incident on the cell 12, and the amplified negative-going photo-cell signal is applied through resistance 21 to a negative feed-back summing amplifier 22, together with a steady voltage from source 25 through resistance 26, and fractions of voltages u, v through resistances 23, 24. These resistances are adjusted so that the voltages proportional to ad.u, bc.v, and ac are cancelled out of the input leaving the voltage proportional to bd.uv, which is amplified and appears on terminal 28 as a measure of the product. In a modification, Fig. 2 (not shown), the Kerr cell response characteristics are linearized by passing separate beams of light from a common source through each cell and additional crossed polarizers and analysers to illuminate separate photo-cells whose outputs are amplified and degeneratively combined with the voltages v, u applied to the plates of the respective cells.
Patent GB-714438-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B15/88
Filed: 1951-11-02
Abstract: 714,438. Knitting-machines. TRENT ENGINEERING. CO., Ltd., WIGFIELD, S., and CUCKSON, H. W. Jan. 22, 1953 [Nov. 2, 1951], No. 25625/51. Class 74 (2) A circular knitting-machine for producing hose or half hose has auxiliary draw-off mechanism comprising one or more hook members A mounted on a slide B movable up and down a pillar C and adapted to be raised at the commencement of a pouch so as to project the members A up the inside of the cylinder but on the outside of the fabric so as to engage the pouch fabric and draw it downwards when the slide is released. The slide is raised by cam mechanism M and when released falls under its own weight to exert the pull on the fabric. If the hook members fail to engage the fabric the arm raising the slide strikes a spring which and stops the machine. The fabric is disconthrough a connecting lever disconnects the clutch nected from the hook members by the action of the usual draw-off mechanism on the fabric.
Patent GB-534827-A (GB)
Title: Improvements in or relating to upward acting closures for doorways
IPC: E05D15/42
Filed: 1939-09-12
Abstract: 534,827. Sliding doors. CRAWFORD DOOR CO. Sept. 12, 1939, No. 25658. Convention date, Sept. 30, 1938. [Class 20 (iii)] A door 10 is adapted to slide into a horizontal position above the doorway. A guide rail 15 is carried by brackets 16, 17 at the centre of the lintel 14 and extends horizontally into the building. Rollers 19, 20, carried by the door run on flanges 15a, 15b, and are carried by a link 22 pivoted at 23 on the angle beam 24 forming the top of the door. The angle beam at the bottom of the door is connected at each end by links 31 to the jambs 12. Striker plates 35 for the door are provided at the bottom of the lintels, and a spring-urged latch bolt may be provided to snap over one striker plate to lock the door in closed position. The bolt may be released manually by means of a chain. Guides may be provided on the jambs to centre the door in closed position. The outer face of the door has a groove 47 running vertically from top to bottom, to receive a cable 48 which is fixed at the bottom, and to a winding drum 50 on a shaft 51 carried by brackets 16, 52 on the lintel. The drum is actuated by a coil spring 53. When the door is in closed position, the cable 48 extends along the length of the groove 47. If the bottom of the door is pushed outwards, the spring actuates the winding drum so that the bottom swings outwards with the link 31 and the top moves inwards along the track 15. In a modification, Figs. 5-7 not shown, two doors are bolted together to form a wider door, and a guide track is provided at each side of the door. The groove for the cable 48 is formed at the junction of the doors. In a modification, Fig. 8, the door comprises horizontal sections hinged together. The hinge pins extend laterally and carry rollers 83 which run in a track having vertical and horizontal portions connected by a curved portion 89. The winding cable extends along a groove on the outside of the door as in Fig. 3.
Patent GB-462825-A (GB)
Title: Improvements in means for mounting automatic telephone dials
IPC: H04M1/23
Filed: 1935-09-16
Abstract: 462,825. Sets. SANDERSON, T. J. Sept. 16, 1935, No. 25660. [Class 40 (iv)] An impulse transmitter or an apparatus blank mounted in a circular aperture in a support or stand is locked in the aperture of the stand in such a way that it can be unlocked and removed from the stand by operations which can be completely performed on the outside of the stand. A desk-set has a circular aperture 9 formed with recesses 4 engaged by lugs 3'for the insertion of the dial casing into the set and having a cam groove 8 sloping towards and ending adjacent a slot 7 which extends to the outside of the set. A spring loop 5 located inside the dial casing has one end fixed and the other end provided with a radial projection 6 extending through a slot in the casing. The projection 6 which is opposite the deep end of the groove 8 when the lugs 3 register with the recesses 4 snaps into the slot 7 when the dial is rotated in a clockwise direction. To remove the dial, the projection 6 is forced inwardly by a tool inserted in the slot 7 and the dial is rotated in an anticlockwise direction until the lugs 3 are again opposite the recesses 4. In an alternative construction, Figs. 3, 5, a spring 11 secured adjacent the dial aperture is moved inwardly by one of the lugs 3 when the dial is inserted and returns to a locking position when released by rotation of the dial in a clockwise direction. The dial is released for withdrawal by its rotation in an anticlockwise direction after the spring 11 has been depressed by a pin 17 inserted through a hole 18 adjacent the finger stop 22. The flexural movement of the spring 11 is limited by a stop member 16. The locking-spring may be integral with a flat or L-shaped ring secured to the inner surface of the set around the dial aperture.
Patent GB-258214-A (GB)
IPC: F23N3/00
Abstract: 258,214. Muchka, J. Sept. 11, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Air supply, regulating; firebars and grates.- The supply of air to a furnace grate is regulated automatically in accordance with the weight of fuel on the grate which may be divided up into sections so that the air supply to each section may be varied according to the weight of fuel thereon. In the arrangement shown in Fig. 1, the grate 1 is supported on cross beams 2 resting on lateral rails 3 which bear on angular levers 5 pivoted at 6. The free ends of the levers are mounted in a guide and attached to the chimney damper by a chain 8. In the modification shown in Fig. 2, the movement of the grate is transmitted to the damper bv hydraulic means, the rails 3 being connected to plungers 11 in hydraulic cylinders 12 connected bv pipes 13 to a cylinder 14 the plunger 15 of which is connected to the damper. Fig. 3 shows two further modifications in which the grate is formed by a number of transverse stepped channel bars provided with pivoted valves 35 or sliding valves 46. The valves 35 are pivoted on supports 33 and carry lugs 32 on which rest the grate bars and lugs 36 engaged by springs 37 forming seals for the ends of the bars. The valves 46 are connected by rods 45 to counterweighted levers 41 pivoted at 42 and to the grate bars at 39. In each of the modifications shown in Fig. 3, variation of the weight of the fuel on each grate bar or section actuates the valves to vary the supply of air to the fuel.
Patent GB-1038278-A (GB)
Title: A sampling tube for high temperature liquids particularly metal melts
IPC: G01N1/12
Filed: 1965-06-18
Abstract: 1,038,278. Sampling liquids. BERLINERQUARZ SCHMELZE G.m.b.H. June 18, 1965 [June 19, 1964], No. 25946/65. Heading B8N. [Also in Division B4] A device for taking samples of high temperature liquids, such as molten metal, comprises a completely closed tube 1 made from high melting-point material, such as quartz or quartz glass, and having a point of weakness, where the tube is intended to melt or fracture, formed by closing the tube with a sealing element 2 made from a non-porous material, such as glass, of a lower melting point than that of the material of tube. The tube is evacuated before the sealing member is fused on to the tube at a point 3 and, at this point, the stress in the tube material is increased by varying its wall thickness. In modifications, the tube may be bent into a hook shape or, instead of a bulbous sealing element 2, a hole may be formed in the wall of the tube and closed by a sealing element. The device is formed with a restriction 4 so that, in use, when the scaling element melts or fractures, the liquid is drawn into the tube at a slow rate.
Patent GB-421008-A (GB)
Title: Improvements in or relating to alternating current rectifying systems
IPC: H02H7/127
Filed: 1933-09-20
Abstract: 421,008. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin) Sept. 20. 1933. No. 25989. Convention date, Sept. 20, 1932. [Class 38 (ii)) In a mercury arc rectifier 10 having main anodes 12 associated with the secondary winding 13 of a supply transformer and with control grids whereby the rectifier may be rendered inoperative, an auxiliary anode 18 is provided within the main discharge vessel and is so controlled as to cause the smoothing inductance 14 in series with the load 15 to be short-circuited when the rectifier is rendered inoperative under overload or shortcircuit conditions. In the arrangement shown, the grid 19 associated with the anode 18 is normally connected through a switch 20 to the negative side of a battery 17 so that the discharge circuit across the inductance 14 is blocked, whilst a switch 16 controlling the grids associated with the main anodes 12 is open. Under overload or short-circuit conditions, however, the switch 16 is caused to close thus blocking the main discharge, and at the same time the switch 20 is caused to open thus permitting the inductance 14 to discharge through the anode 18. Specification 358,569 is referred to. The Specification as open to inspection under Sect. 91 comprises also a modification in which the grid 19 is permanently connected to a selected point on the battery 17 so that its potential is such that whilst under normal operating conditions no discharge at the anode 18 takes place, when the voltage across the inductance rises under overload or shortcircuit conditions the blocking effect of the grid is overcome and discharge commences. This subject-matter does not appear in the Specification as accepted.
Patent GB-1469974-A (GB)
Title: Heat exchanger
Inventor: BRATTHELL L
IPC: F28D7/06
Filed: 1974-06-12
Abstract: 1469974 Tubular heat exchangers; steam superheaters STAL-LAVAL APPARAT AB 12 June 1974 [13 June 1973] 26010/74 Headings F4S and F4A In a shell and tube heat exchanger used for heating gas, vapour or liquid, e.g. superheating steam, and comprising at least two superimposed and series connected tube nests 11 and 12 or horizontally disposed U-tubes through which heating medium in the form of steam is passed, the tube nests 11 and 12 are connected to respective condensate draining tubes 19 leading to one or more steam barriers 18. In use steam from a steam inlet chamber 17 is fed to the upper limbs of the lower tube nest 12 and is thereafter transferred from the lower limbs thereof to the upper limbs of the upper tube nest 11 through pipes 14, said steam leaving the lower limbs of said upper tube nest 11 through an outlet 16. The lower tube nest 12 has more tubes than the upper one 11. The fluid to be heated passes upwardly over the U-tubes in cross-flow relationship, and the tubes are supported in the shell by apertured support plates 13.
Patent GB-1426875-A (GB)
Title: Oxidation of ammonia
IPC: C01B21/26
Filed: 1972-06-05
Abstract: 1426875 Ammonia oxidation initiation system IMPERIAL CHEMICAL INDUSTRIES Ltd 18 May 1973 [5 June 1972] 26130/72 Heading C1A NH 3  oxidation with air to produce nitrogen oxides using a particulate cobalt oxide catalyst is initiated by heating the space upstream of the catalyst with a hot gas heated by combustion of H 2  within it. As shown H 2  and air are injected tangentially from spargers 82 and 84 respectively into the space above a circular bed 24 of cobalt oxide catalyst. In an alternative arrangement the H 2  may be fed through the lower sparger 84. The H 2 /air mixture is ignited by spark plug 94. The NH 3 /air reaction gas stream is fed into the top of the reactor at 11 before starting the H 2  flame.
Patent GB-389400-A (GB)
Title: Improvements in and relating to metal lined casks
IPC: B65D8/04
Filed: 1932-09-20
Abstract: 389,400. Metal-lined casks. HARROW, H. U., Brewery Cottage, St. John's Road, Isleworth, Middlesex, and METAL CONTAINERS, Ltd., Transport House, Smith Square, London. Sept. 20, 1932, No. 26135. [Class 21.] A cask of the kind comprising a metal lining enclosed within an outer casing built up of wooden staves b and heads a bound together by hoops c in the manner customary in the coopering trade, is constructed with the lining d of sections of stainless steel butt-welded together, and the shell fits closely around it. Two similar cup-shaped sections joined at their rims may be used, or three sections, the end sections being shallow cups. The bung bushes h are preferably also of stainless steel. Studs k may engage holes in the casing and corrugation l may be employed to strengthen the lining.