baber/WOPTO huggingface dataset:
Patent GB-298548-A (GB)
Title: Manufacture of artificial threads
IPC: D06M11/55
Filed: 1927-05-06
Abstract: 298,548. Lilienfeld, L. May 6, 1927. Divided on 274.521. Cellulose xanthates, processes for making filaments from.-Viscose silk, &c. having a high dry tenacity is made by conducting a thread-like stream of viscose into a bath containing in place of the strong mineral acids used in the processes described in Specifications 274,521 and 274,690, an agent capable of coagulating viscose and an agent, which may be the same as the coagulating agent, capable of dissolving, swelling, or plasticizing the coagulated thread; alternatively the viscose may be first extruded into a coagulating bath, and then into a bath containing a plasticizing agent. Suitable plasticizing agents are zinc chloride or other halide in the presence or absence of mineral acids, cuprammonia solution, strong organic bases such as quaternary bases and guanidine, in presence or absence of alkalies, and ammonia derivatives of the type of urea, thiourea and dicyandiamide also in the presence or absence of alkalies. The time during which the thread is in contact with the plasticizing agent must be so chosen that practically no destruction nr degradation occurs, injurious action of the bath on the thread being checked by washing or by subjecting the formed thread to a low temperature either before or during the deposition of the thread on the bobbin or in the centrifugal box and either before or during the stretching of the thread. The viscose used may be prepared from matured, unmatured or partly matured alkali cellulose, or it may be prepared by direct admixture of the re-agents; and to the viscose may be added glycerine, glucose, sodium sulphate or sulphites, alkali silicate or aluminate, or ammonia. The coagulated thread, after washing may be heated or steamed either before or after drying. For examples, the thread is extruded into a bath containing zinc chloride and sulphuric acid, or a coagulated thread is passed into a bath containing zinc chloride and hydrochloric acid.
Patent GB-755515-A (GB)
Title: Improvements in or relating to the manufacture of refractory bricks, shapes, and blocks
Inventor: EICHLER BERTOLD
IPC: C04B35/14
Filed: 1953-06-26
Abstract: Silica bricks are made by mixing ground silica with lime and a metal salt solution which by reaction with the lime precipitates metal hydroxide, shaping and firing, whereby the resulting metal oxide reacts with the silica and increases the glass content. Salts specified are ferrous sulphate, ferric chloride and nitrate and manganous sulphate.  Specification 755,514 is referredALSO:Refractory silica bricks are made by mixing ground silica with lime and a metal salt solution which by reaction with the lime precipitates metal hydroxide, shaping and firing, whereby the resulting metal oxide reacts with the silica and increases the glass contents.  Salts specified are ferrous, e.g. the sulphate; ferric, e.g. the chloride and nitrate; soluble salts of bi-valent metals forming, as oxides, immiscible melts with silica, e.g. manganous sulphate.  Specification 755,514 is referred to.
Patent GB-700256-A (GB)
Title: Improvements in and relating to self-lubricating articles
IPC: C22C33/02
Filed: 1951-07-26
Abstract: A self-lubricating article is made of a sinter alloy of the following composition: Fe 50-60 per cent., Cu 35-45 per cent., Be 0.3-0.8 per cent., graphite powder 4.0-8.0 per cent.  In forming the article the mixed powders are heated to red heat and cooled under pressure.  The sintered mixture may then be hammered.
Patent GB-515950-A (GB)
Title: Improvements in or relating to emergency exit arrangements for vehicle and aircraft bodies
IPC: B60J9/02
Filed: 1938-06-15
Abstract: 515,950. Emergency exits for vehicles, fastenings. ARMSTRONG, A. C. H. June 15, 1938, No. 17753. [Classes 103 (iv) and 108 (i)] [Also in Groups X and XXV] In order to provide an emergency exit from rail or road vehicles or. aircraft in the event of a collision, fire, or other accident, the retaining- latches of doors, windows, sliding panels &c. are released by electro-magnets, the circuit of which is closed, e.g., by the contact of bumpers in the case of a collision, by a mercury gravity switch in the case of overturning, or by thermostatic switch in the case of fire whereupon the doors, windows &c. open automatically under their own weight or under the influence of springs as shown in Fig 1 a motor-coach is fitted with front and rear bumpers e and with side bumpers e' which, in the event of a collision, are pressed inwardly against the action of restoring springs to complete an electric circuit including solenoids h which release the latches k<1>, Fig. 6, of-the windows, doors &c. In the case of windows these may be of a non-adjustable type (b, Fig. 1) or of an adjustable type (c, c<1>, Figs. 6 and 8), and in the latter instance it may be necessary to disengage the operating pinion n from the rack o before the window can be lowered by the springs or by gravity. Instead of operating the latches k<1> directly the solenoids h may, as shown in Fig. 5, operate one or a series of latches t by means of toggle links r and a sliding rod s<1>. Similar arrangements are described for releasing the latches of doors and sliding roof panels, while the 'electric circuit shown also includes a mercury gravity switch y and a thermostatic switch z.
Patent GB-145616-A (GB)
Title: Improvements in and connected with shears for metal bars
IPC: B23D21/00
Filed: 1920-06-29
Abstract: 145,616. Vitte Geb. May 7, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Shearing.-A machine with one blade c on a fixed arm a and the other blade d on an arm b pivoted at e has a secondary operating-lever f pivoted on the movable arm and actuating through an eccentric pin g, a pawl h which engages teeth i on the fixed arm, and thereby forces down the movable arm to effect the cut. During the return strokes of the secondary lever between successive actuations of the movable lever, the latter is held down by a pawl k on the fixed arm engaging teeth on the movable arm. To open the shears after a out has been completed, the pawls are disengaged and a locking-arm m is turned to lock the secondary lever to the movable arm, thus causing the lever and arm to move together, this arrangement being also suitable for light cuts. A U- shaped extension n of the fixed arm embraces the movable arm to keep the two arms in contact.
Patent GB-973501-A (GB)
Title: Protection circuit for use with multi-phase a.c. systems
Inventor: DAVY KENNETH
IPC: H02H3/10
Filed: 1960-05-20
Abstract: 973,501. Semi-conductor relay circuits. ROTAX Ltd. May 15, 1961 [May 20, 1960], No. 17822/60. Heading H3T. [Also in Division H2]  In a polyphase overload protective arrangement, when the highest phase current exceeds a predetermined value, the voltage across the capacitor 15, after a time lag imposed by the charging of the capacitor 18, causes a 4-layer diode 20 to break down and so render an NPN transistor 24 conductive. A relay 25 is now energized and closes contacts 26 to complete a holding circuit for itself and opens contacts 27 to cause isolation of the protected machine. The resistors 9, 10, 11 have a high temperature coefficient to provide added protection against excessive temperature rise of the machine.
Patent GB-1093269-A (GB)
Title: Extracorporeal artificial organ
IPC: A61M1/24
Filed: 1965-04-28
Abstract: 1,093,269. Treating blood. DOW CORNING CORPORATION. April 28, 1965 [May 6, 1964], No. 7864/65. Heading A5R. [Also in Division Bl] A device for treating body fluids in an extracorpareal circuit by dialysis, e.g. an artificial kidney, comprises a membranous envelope 11 containing a spacer (13) and having an inlet 18 and an outlet 19 for dialysing fluid, and wound upon a spool 10, the assembly being held together by a jacket 12. Body fluid, e.g. blood, is passed under gravity or by a pump into the assembly through a tube 15, along grooves 16 in one end flange of the spool between the turns of the envelope where dialysis takes place and out of the device through grooves 16 in the other end flange of the spool and a tube 17. Dialysing fluid passes through the envelope either under gravity or by the application of a constant or oscillating negative pressure at the outlet 19. The membrane walls of the envelope are of silicone rubber, regenerated or viscose cellulose, polyethylene or latex. The spacer is of mesh material and may be made of metal, fibreglass, polyethylene, cellulose or silicone rubber. The envelope inlet and outlet are made of silicone rubber.
Patent GB-833541-A (GB)
Title: Improvements relating to apparatus for heating liquid by means of steam
Inventor: ROBERTS EDWARD CLIFFORD
IPC: F28D1/053
Filed: 1957-06-06
Abstract: 833,541. Heating liquids in bulk. MORTON & CO. Ltd., R. June 5, 1958 [June 6, 1957], No. 17967/57. Class 64(3) An apparatus for heating liquids in bulk by means of steam comprises an annular chamber formed by walls 10, 12 and distance pieces 13, 14, and inlet pipe 24 for the steam joined to a header 16 formed as an extension to the annular chamber and communicating therewith by means of tubes 18 which are disposed to project jets of steam into the upper regions of the annular chamber and so disperse air pockets and an exhaust pipe communicating with an opening 30 in the annular chamber. The chamber is supported within the container for the liquids by means of the inlet and exhaust pipes although a further supporting means may be provided. The inlet and exhaust pipes may be disposed on the outside of the chamber instead of the inside.
Patent GB-545020-A (GB)
Title: Improvements in or relating to lids and/or back plates for gas and the like cookers
IPC: F24C15/12
Filed: 1940-12-20
Abstract: 545,020. Gas &c. cooking stoves. TURLEY & WILLIAMS, Ltd., SMITH, C. D., and OTTON, D. H. Dec. 20, 1940, No. 17972. [Class 126] A pivoted lid or backplate 9 for a gas or like cooker is held when in the raised position by one or more spring or gravity-operated catches 5 secured to a spindle 4 rotatably mounted in upstanding bars 1 welded to the cooker body. The catches 5 are formed with bevelled noses 7 engaging slots 10 in the lid 9. The lid 9 is pivoted to a plate 2 fixed to the bars 1 and in the raised position abuts against rubber blocks 8 projecting from the bars 1  through holes in the plate 2.
Patent GB-530290-A (GB)
Title: Improvements in or relating to tumbler switches
IPC: H01H29/20
Filed: 1939-06-21
Abstract: 530,290. Tumbler switches. WALSALL CONDUITS, Ltd., and GOUGH, E. June 21, 1939, No. 18057. [Class 38 (v)] A tilting mercury switch 18 is operated by a tumbler 15 pivoted on a bridge 13 on pillars 11 secured to a base plate 10, on which is supported a pivot pin 17 for the carrier of the container 18. The carrier comprises a cranked member 29 having one part 30 pierced to provide a bearing on pin 17 and another part 31, which is riveted at 27 to a U-shaped clip 26 for the container and to a T-shaped plate 28 apertured to provide another bearing on pin 17. The pressure of the limbs of clip 26 is taken by a further U-shaped clip 43. A lug 36 on part 31 anchors one end of a spring 37 which is anchored at the other end to a lug 40 on the base plate. Part 30 is formed with a cam slot 32 in which engages a roller 33 on the inner end of the tumbler lever 15. A nose 34 on the cam slot 32 snaps the container into and.from the closed position shown, the opening stroke and, if desired, the closing stroke also, being absorbed by a buffer 35. Two containers may be mounted one behind the other in a suitably-enlarged carrier, each having its clip 43 and leads 21 and terminal blocks, Figs. 6, 7 (not shown). A number of these switches may be assembled alone or with tumbler switches of ordinary pattern on a grid in a box, Fig. 8 (not shown).
Patent GB-661631-A (GB)
Title: Improvements in or relating to frequency selective circuits
IPC: H03H9/54
Filed: 1949-07-08
Abstract: 661,631. Electric selective signalling. WESTERN ELECTRIC CO., Inc. July 8, 1949. [July 10, 1948] No. 18113/49. Class 40 (i). [Also in. Groups XL (b) and XL (c)] In a signalling system comprising a central station and a number of substations, the latter are provided with a number of frequency responsive circuits tuned by mechanical reeds, which operate a signalling device when all reeds are resonant. Thus each substation only responds to a signal including all the frequencies of its reeds. As shown the input signals are connected across a number of Wheatstone bridges, which all include common resistances 52 and 53 and which each include one of the four pairs of inductances 44, 45, 46 and 47. These inductances include vibrating reeds 40, 41, 42 and 43 and adjusting cores which permit the bridges to be balanced for frequencies other than that of their respective reeds. Thyratron 54 will only fire and actuate the signal means when all the bridges are unbalanced and thus transmitting signals to their respective grids. In modifications the bridges may be separate and distinct or a single bridge may be used with several tuned reeds in one inductance.
Patent GB-186704-A (GB)
Title: A device for utilising the vibrations of vehicles
IPC: G09F21/04
Filed: 1921-07-04
Abstract: 186,704. Canale, M. A., and Frias, R. July 4, 1921. Reel and web apparatus; rotary apparatus.- Vibration-operated mechanism for driving an advertising band on vehicles comprises masses 4 mounted on springs 3 which carry pawls 5 engaging a ratchet wheel 6 which, through bevelwheels 8, 9, rotates a toothed wheel 12. The mechanism intermittently moves a band 26 from one to the other of two rollers 33, 34, the operating or free-running state of a roller at any one time depending on which of two gear-wheels 27, 28 the wheel 12 is engaging. The reversing- mechanism for the band, whereby the wheel 12 is shifted from one to the other of the wheels 27, 28, comprises a rocking arm 10 in which is journaled the shaft 11 carrying the wheels 9, 12. The arm 10 has a slide 13 engaged by the end 17 of a lever 18 pivoted at 19. A member 24 on the free end of the lever 18 is engaged by tongues 25 situated one near each end of the band 26, and is mover thereby to one of the positions A, B, thus rocking the arm 10 and altering the position of the wheel 12. The movement is facilitated and the arm 10 positioned by notches 14 thereon engaged by a spring-pressed roller 15, and by notches 20 on the lever 18 engaged by a spring-pressed roller 21. The motor may be stopped at will by a leaf spring surrounding the masses 4 and brought against them by levers 44, 46. The bearings 37, 38 for the rollers are in twc spring-pressed parts.
Patent GB-1031095-A (GB)
Title: Improvements in or relating to inflation devices for pneumatic tyres
Inventor: WELLS WILLIAM NEIL
IPC: B60C23/00
Filed: 1962-05-11
Abstract: 1,031,095. Tyre inflation devices. DUNLOP RUBBER CO. Ltd. April 24, 1963 [May 11, 1962], No. 18125/62. Heading B7C. A device which enables tyre inflation pressure to be adjusted to suit varying speeds comprises a pump 5 driven by rotation of the wheel 2 to inflate the inflationary chamber 14 of the tyre 1, and at least two pressure-relief valves 18, 20 which open to the atmosphere at different pressures, means 21 being provided to take at least one valve 20 out of operation. As shown, an aircraft wheel 2 rotates on a stationary axle 3 to operate the pump 5 by means of rod 15 eccentrically pivoted on the axle 3. The pump 5 inflates the tyre 1 through chamber 13 and passage 13a, the valve 18 being set to open at the desired maximum inflation pressure. The valve 20 is set to open at the desired minimum pressure, but may be taken out of operation by closing a switch 26 to close the solenoid operated valve 21, which is otherwise held open by a spring 23. Thus the tyre pressure will adjust towards the minimum or maximum if switch 26 is open or closed respectively. A number of valves 20, each with a cut-off valve 21, may be provided, opening at different pressures. The valve 21 may be placed between valve 20 and the atmosphere. The pump 5 may be of the eccentric vane type, and more than one pump may be provided on one wheel. One switch 26 may operate valves on all the wheels of an aircraft. The device may be detachable from the wheel.
Patent GB-928518-A (GB)
Title: Improvements in or relating to joint boxes for electric cables
Inventor: TAYLOR GORDON AUSTIN
IPC: H02G15/10
Filed: 1959-05-28
Abstract: 928,518. Junction boxes. AUSTIN TAYLOR ELECTRICAL Ltd. April 14, 1960 [May 28, 1959], No. 18156/59. Class 38 (1). A joint box has a protective cover 13, an attachment plate 15, an intermediate gland member 18 and a nut 19 in screw threaded engagement. Seals 16, 20, e.g. neoprene O-rings, are provided.
Patent GB-1508390-A (GB)
Title: System for hanging curtains
IPC: A47H1/102
Filed: 1976-05-04
Abstract: 1508390 Suspending curtains; curtains S SILVESTRE 4 May 1976 18190/76 Headings A4B and A4S A curtain suspension system which maintains gathers in the curtain 21 comprises a suspension bar 6 with a top, longitudinal slot 19, supports 7 for the bar 6 having a head 20 disposed within the bar and a neck extending through the slot 19, a curtain 21 having circular holes 12 adjacent its top edge and having extension slots 22 extending to the top edge, and rings 1, 3 and 24 surrounding adjacent holes 12 and connected by a link 5 which limits the spacing apart of the holes 12 to maintain gathers, the rings 1, 3 and 2, 4 also being open at the top, as at 23, so that the curtain may slide freely past the supports 7. Each ring comprises a plastics part 3 or 4 and a metal part 1 or 2, the parts 1, 3 and 2, 4 co-operating to clamp the curtain between them.
Patent GB-1211985-A (GB)
Title: 7-triazinyl-coumarins
Inventor: BODE KLAUS-DIETER
IPC: C07D521/00
Filed: 1969-04-09
Abstract: 1,211,985. 7 - Triazinyl - coumarins. FARBENFABRIKEN BAYER A.G. 9 April, 1969 [11 April, 1968], No. 18222/69. Heading C2C. [Also in Divisions C3 and D1] Novel compounds of the formula in which Ar and Ar<SP>1</SP> represent identical or different aromatic or hetero-aromatic radicals, may be obtained by reacting a coumarincarboxylic acid chloride of the formula in the presence of aluminium chloride, a nitrile Ar-CN and ammonium chloride. Preparation of the following intermediates is also described: 7-amino-3-phenyl-coumarin is treated with H 2 SO 4  and nitrosyl sulphuric acid then reacted with CuCN and KCN to form 7 - cyano - 3 - phenylcoumarin, The 3 - p - tolyl, 3 - p anisyl, 3 - pyrazolyl - 1 and 3 - (1,2,4- triazolyl - 1) 7 - cyano - coumarins are prepared analogously. 7 - Cyano - 3 - phenylcoumarin is hydrolysed with polyphosphoric acid to yield 3 - phenyl - coumarin - 7 - carboxylic acid. The 3 - p tolyl. 3 - p - anisyl and 3 - pyrazolyl - 1 coumarin - 7 - carboxylic acids are similarly obtained. 3 - Pyrazoylyl - 1 - coumarin - 7 - carbxoylic acid is also obtained by condensing 4-carboxy-salicyl aldehyde with pyrazolyl-(1)- acetic acid. The coumarin carboxylic acids are converted to corresponding acid chlorides by heating under reflux with thionyl chloride.
Patent GB-958565-A (GB)
Title: Logical circuit
IPC: G06F7/57
Filed: 1960-05-24
Abstract: 958,565. Logical switching circuits. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORPORATION. May 24, 1960 [May 25, 1959], No. 18342/60. Heading H3T. [Also in Division G4] A logical switching network whereby any one of a plurality of transmission paths between each of a plurality of first points and at least one second point is completed by the simultaneous application of a first signal to one or more devices (e.g. transistors or diodes) to render the path conductive and of a second signal via the primary winding of a corresponding one of a plurality of transformers whose secondary windings supply the energy to produce flow of electric current in a respective transmission path or one of a group of respective transmission paths. In Fig. 2 the application of a continuity-completing pulse to the emitter of transistor H 1  at x 1  and a current-supply pulse to the primary winding of transformer L 2  at y 2  causes current to flow in a path P and produce an output across a corresponding load resistor R at u 2 . Diodes d 1 , d 2 , d 3  prevent current flow in paths such as those indicated by arrows P<SP>1</SP>, P<SP>11</SP>. The inputs x 1 , x 2 , x 3  may be alternatively applied to the base electrodes of their corresponding transistors, Fig. 6 (not shown). Fig. 3 shows how transistors H 1 , H 2 , H 3  may be replaced by diodes d<SP>1</SP> selectively rendered conductive by the outputs of bi-stable circuits F 1 , F 2 , F 3 . In Fig. 8, the application of a switching-on pulse to transistor H between terminals x, x<SP>1</SP> results also in an output at terminal u unless a current-supply pulse is applied to one or more of inputs y 1 , y 2 , y 3  when the current flowing in the lower half of the split primary of the output transformer cancels that flowing in the upper half. Fig. 11 shows a circuit for displacing the digits of a binary number by any selected one of a number digit positions. The inputs x represent the digits of the input binary number and the inputs Y the displacement to be effected, the suffixes indicating the magnitude of the displacement. Thus the application of a pulse at YÁ will cause the displacement of the binary number applied at x by Á digit positions. To achieve thus, terminals (1, Á), (2, Á) ... (n, Á) are connected to corresponding terminals (1, Á)<SP>1</SP>, (2, Á)<SP>1</SP> . . .(n, Á)<SP>1</SP> via primary windings of successive transformers T# so that the digit corresponding to input x 1  produces an output u in the secondary winding of the (Á + 1)th transformer, that corresponding to input x 2  in the secondary winding of the (Á + 2)th transformer and so on. Fig. 14 shows a modified form of shift circuit in which the current supply inputs Y are inserted between the digit inputs x and the outputs u developed across resistors R u .
Patent GB-218494-A (GB)
Title: Improved baby carriage or go-cart
IPC: B62B9/18
Filed: 1923-07-17
Abstract: 218,494. Giles, F. N. July 17, 1923. Springs, arrangement of.-In a folding baby carriage having crossed members f<2>, f<3>, g<2>, g<3> pivoted together at h, coiled springs j with shackles m, n are connected between the parts. f<2>, g<3>, or between the axles of the wheels or the upper parts of the crossed members, to oppose the tendency of the parts to spread outwardly under the weight of the occupant or pressure on the handle.