baber/WOPTO huggingface dataset:
Patent GB-594160-A (GB)
Title: Improvements relating to electric signalling systems
IPC: H04Q1/446
Filed: 1945-05-11
Abstract: 594,160. Electric signalling systems. SIEMENS BROS. & CO., Ltd., CRUTCH, L. S., MOLE, J. H., and NEWMAN, W. C. May 11, 1945, No. 11914. [Class 40 (iv)J [Also in Group XL] In an electric signalling system, such as a telephone system, using alternating current for signalling, the input and output circuits TRL, TRC of a limiting device LIM are linked by a first coupling including TRL(II), and a second coupling TRL(III) connected in opposition to the output TRC so as to give, by virtue of their special characteristics, a combined output characteristic in which there is no substantial increase in output for increases of input above a critical value. The first coupling comprises winding TRL(II), a series resistance YC and an output shunt arm comprising equal resistances YA, YB and oppositely connected rectilier elements RA, RB biassed by a suitable battery current through resistance YD. The characteristic of this coupling comprises a comparatively steep first portion and a less steep second portion. The second coupling consists in winding TRL(III) which has a linear characteristic. In alternative arrangements, either the windings TRL(II), (III) may be continuous or a resistance and capacity may be inserted between YC and the rectifier elements and the resistance YB reduced to zero. The limiter is described in conjunction with a signal responsive apparatus suitable for use when alternating currents of two separate speech frequencies are used for the transmission of calling and supervisory signals over a conversational circuit. Low impedance highspeed relays X, Y are normally operated and each relay is released when the anode current of the corresponding pentode VA or VB drops on receipt of a pure signal of the appropriate frequency. The normal control grid is given a positive bias by connection to positive battery through resistance YPX. The suppressor grid is used for control purposes and is given a negative bias which is controlled by a non-linear ballast resistance BRX in the cathode lead. The screen grid circuit includes the primary windings of transformers TRX, TRXB, the former sharply tuned and the latter broadly tuned to the same signalling frequency. The signal through TRX(II) and a voltage doubling rectifier RX produces a potential difference across the resistance YX which tends to reduce the anode current to release X. This voltage is countered by a similar potential difference across YXG produced by rectifier RXG according to the differential effects of TRX(III) and TRXB. For a pure signal, this effect is zero and relay X releases. The alternating current signals may be transmitted as modulations on a carrier current. The Provisional Specification states that the signal discriminating arrangements described in Specification 594,159 may be employed and that the circuits may be so arranged that the signal relay is operated by a signal, being normally released.
Patent GB-266171-A (GB)
Title: Improvements in and connected with means for automatically locking and unlocking the doors of railway carriage and other vehicles
IPC: E05B65/42
Filed: 1926-05-07
Abstract: 266,171. Wallace, A. May 7, 1926. Railway-carriage doors and the like, fastening automatically.- A plate D depending from a spindle E carried by a ball-bearing bracket F connected to the underside of the carriage or other vehicle is operated by the pressure of the wind when the vehicle is moving to turn catches G of inverted triangular formation into engagement with a recess H on the underside of each carriage door. The spindles may be in two parts with a catch at each outer end. Specification 16314/91 is referred to.
Patent GB-581863-A (GB)
Title: Improvements in or relating to vehicles
IPC: B62B7/06
Filed: 1944-06-23
Abstract: 581,863. Collapsable vehicles. STAMFORD ENGINEERING CO., Ltd., and HUTCHINGS, J. H. G. June 23, 1944, No. 11972. [Class 108 (i)] In vehicles in which the wheels are folded flat for travelling purposes the body frame a, Fig. 1, is supported by springs b from a chassis member c and the means for locking the wheels d in the open or closed position comprises a spring pressed pin and socket or slot engagement between the chassis members and the supporting members or brackets g carrying the wheels. The brackets g hinge on the longitudinal, chassis tubes c by sleeves h and can be locked to the tubes in the running or retracted position by operating a spring plunger k, Fig. 3, which takes into one of two holes in the tube. In a modification, Fig. 5, the sleeve h is slotted at right angles at h<2>, h<3> to engage a diametrical pin c<2> in the tube c, the' sleeve being slid along the tube against the resistance of a spring c' when changing the position of the wheels. The body frame a is supported on the ends of the side tubes c by the springs b and carries a seat a' slung between a telescopic handle p and front stay w. The handle p is adjustable in inclination by a slotted link t and nut u. The handle is adapted to be folded down on the frame a and the wheels rotated underneath the frame.
Patent GB-474419-A (GB)
Title: Improved process of producing transparency effects on cotton
IPC: D06M15/05
Filed: 1936-04-27
Abstract: A cotton fabric is treated throughout or locally with a solution of viscose, immersed in a cellulose precipitating bath and then mercerized.  The fabric may be treated with sulphuric or other acid together with wetting agents such as alcohol or glycerine before, after, or alternately with the mercerizing; before such acid treatment and preferably during the application of the viscose solution, the fabric may be treated with oxidizing agents and ester salts of leuco vat-dyestuffs; matting agents such as pigments may also be added.  Reserves may be printed on the fabric before or after the treatment with viscose, and also before the acid treatment.  In an example, a mercerized and partially bleached mousseline fabric is treated with a ripened 2--8 per cent viscose solution, squeezed, passed into a sodium sulphate-sulphuric acid precipitating bath, rinsed and mercerized under tension, rinsed, neutralized, bleached and dried.
Patent GB-289876-A (GB)
Title: Improvements in or relating to storage receptacles
IPC: B65D90/30
Filed: 1928-04-24
Abstract: 289,876. Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij. May 5, 1927, [Convention date]. Tanks for volatile liquids have a cover 2 in the form of a bell, with its edge 4 received in a liquid seal 5 disposed internally or externally at the upper edge of the tank. Vapour may be drawn off through a pipe 9, and pressure relief and air inlet valves may be provided. The reinforcing structure 3 may be carried either by the tank or the roof, and the latter may be connected by chains 11 to loading weights 10.
Patent GB-427926-A (GB)
Title: Improvements in the sizing of textile fibres
IPC: D06M13/02
Filed: 1934-04-21
Abstract: Artificial silk threads in the form of skeins are sized by immersing the skeins in a bath of a sizing product, e.g. glycerin resinate, beeswax, cumoron resin, dissolved in a non-aqueous lubricating solvent boiling between 150 and 250 DEG  C. but volatile in a current of warm air; centrifuging the impregnated skeins; shaking them and then evaporating the solvent in heated air. Suitable solvents are petroleum, turpentine, terpenes such as limonene, dipentene and byeproducts from the synthetic production of camphor, terpeneol, borneol, &c.  Semifluid mineral oils, vegetable oils such as olive and coco-nut oil and sodium sulphonaphthenate oil also mentioned as additions to the sizing baths.
Patent GB-549659-A (GB)
Title: Improvements in and relating to building units
IPC: E04C2/38
Filed: 1941-09-22
Abstract: 549,659. Building slabs. ROWSE, A. G. Sept. 22, 1941, No. 12207. [Class 87 (i)] A concrete &c. building slab 1 is formed with grooves 7 in the top and bottom edges forming a horizontal channel in which a reinforcing rod 8 is grouted and at the side edges with marginal flanges 2, 21 having pairs of grooves 3, 4, 31, 41 forming vertical channels in one of which a vertical reinforcing rod 5 is grouted, the other channel 6 forming an air cavity; the air space 9 between the marginal flanges 2, 21 is enclosed by an internal board or slab 10 which may be formed in one with the flanges or tied to the slab 1 by the rods 11. The bottom and top edges of the flanges may have interengaging beads and recesses.
Patent GB-1018523-A (GB)
Title: Acoustical tile, methods and compositions
Inventor: LEWIS JESSE HENDERSON
IPC: C03C8/14
Filed: 1964-03-23
Abstract: A porous acoustical tile comprises an expanded particulate mineral aggregate bonded by a fired thin coating containing bentonitic and kaolinitic clays, and contains 60-80% perlite or substitutes (defined) 13-26% kaolinitic clay and 6-14% bentonitic clay. Deflocculants can be present e.g. sodium carbonate, silicate or hexametaphosphate.  The surface can be glazed.
Patent GB-245568-A (GB)
Title: Improvements in or relating to means for guarding against unauthorised use of motor vehicles
IPC: B60R25/022
Filed: 1925-03-12
Abstract: 245,568. Stephenson, C. Y. March 12, 1925. No Patent granted (Sealing fee not paid). Guarding against unauthorized use.-The steering hand-wheel may be locked against rotation by an arm pivoted to the fixed steering tube or column and provided with a locking member adapted to embrace one of the spokes. In the construction shown in Figs. 1 and 2, the arm 1 is pivoted by a rivet 13 to lugs 14 on a two part member 3 adapted to be permanently clamped as by rivets 9a to the fixed steering column. The other end of the arm 1 is provided with U-shaped locking members c, d adapted to embrace a spoke of the wheel. The arm 1 when not in use may bs held by a spring clip 16. In one alternative construction, the hinge 13 is arranged radially to the steering tube and a U-shaped locking member of different form is described.
Patent GB-295250-A (GB)
Title: Driving mechanism for internal combustion engines
IPC: F01B7/12
Filed: 1927-05-06
Abstract: 295,250. Szydlowski, J. May 6, 1927. Driving-gear; two-stroke-cycle engines; crank chambers, casings and frames.-In an engine with four cylinders arranged in pairs above and below a central crank shaft 4, each cylinder having oppositely-moving pistons 7, the pistons are connected in pairs to bars 11, 11<a>, 16, 16a rocking on two shafts 12. As shown in Figs. 1 and 2, the bars are carried on hubs 17, 18, 17<a>, 18<a> the drive on the crank shaft being through arms 19, 19<a>, 20, 20a on the hubs and connecting rods 13, 13<a>, 14, 14<a>. In each cylinder one piston controls the admission port and the other the exhaust port, the latter opening after the former on the outstroke but closing earlier on the instroke. The four connecting rods 13, 13<a>, 14, 14a are at such angles that the two pistons in one cylinder are not simultaneously at their dead centres and that the cycles in the four cylinders take place in sequence. The ports are arranged so that a piston in one cylinder controlling an inlet port is above a piston controlling an exhaust port. The connecting rods 13, 14 are hinged on lugs on the rods 13<a>, 14<a>. The engines and shafts 12 are mounted in and supported by a divided casing 1, 2. In a modification a divided frame 21, 21a, Fig. 5. carries the crank shaft 4 and the rock shafts 12 and has lugs for mounting of the engine casing 1, 2; the shafts 12 are carried in brackets 2a fixed to the two part frame. In modifications the duration of the expansion stroke of and the output of the upper and lower pistons is equalised by connecting the connecting rods 13, 14. Fig. 7 and it may be the other pair 13<a>, 14<a>, Fig. 9, to arms 19, 20 off-set from the bars 11, 16; a single crank pin or two pins 5, 5<1>, Fig. 7, on the same or opposite sides of the shaft are used, to give the necessary advance of one piston over the other in the same cylinder. In one construction reservoirs for the charge are formed in the casing either between each horizontal pair of cylinders or between each vertical pair; the shafts 12, Fig. 14, are received in bearing bridges 24 with cover plates 25, these bridges being bolted on to lugs 29 formed on the main cylinder castings by through bolts 28. The connecting rod big end at one side of the engine is forked, the big end from the other side lying between the fork. In another arrangement the shafts 12 are carried by bearings in frames 30, Fig. 16, attached by through bolts 28 to the, twopart main casing 1, 2; the connecting rods13, 13<a>, 14 14a are displaced axially to enable simple big ends to embrace the same crank pin 5.
Patent GB-1455387-A (GB)
Title: Cathode ray storage tube having a target dielectric provided with particulate segments of collector electrode extending therethrough
IPC: H01J31/08
Filed: 1974-03-20
Abstract: 1455387 Cathode-ray storage tubes TEKTRONIX Inc 20 March 1974 [30 April 1973] 12276/74 Heading H1D A CRT storage target comprises an insulating substrate 50, a transparent electrode 52, a dielectric layer 56 and conductive elements 54 extending from the electrode through the dielectric layer. The elements 54 are of Co particles and are conical, pyramidal or triangular; they may be strips extending across the target continuously or the strips may be subdivided by the dielectric layer. The layer 56 is a P-1 type phosphor. The target is planar or curved. The target is formed by placing the substrate 50 and electrode 52 on an apertured mask, applying a slurry of PVA, NH 4  dichromate, isopropyl alcohol and Co powder. This is illuminated via the mask to polymerize the slurry. The remaining dot elements are shrunk by a hydrophilic agent, e.g. acetone. A further slurry of PVA, dimethyl sulphoxide and phosphor is applied and illuminated to polymerize the slurry in regions other than the dots. The phosphor layer is shrunk as before, this pulls the layer away from each dot. Dry films may be used instead of the slurries. The target is used in a CRT and provides electrical read out and a display. The tube includes 2 flood guns collimated and focused by 4 electrodes comprising coatings on the envelope. The coating adjacent the target also collects secondary electrons emitted from the target.
Patent GB-1027959-A (GB)
Title: Process for the polymerization of diolefins
IPC: C08F36/04
Filed: 1965-03-23
Abstract: A catalyst for use in the polymerization of conjugated diolefins comprises (a) a complex compound obtained by reaction of an inorganic salt of a transition metal with air organonitrile component and (6) an organo-aluminium compound of the general formula: RnAlCl3- n, where R is an alkyl group containing 1-12 carbon atoms and n has a value from 1 to 2.  The organonitrile compound may be an aliphatic or aromatic nitrile or an isonitrile.  The transition metal is preferably cobalt, nickel, titanium, copper, vanadium or rhodium. The polymerization is preferably carried out in an inert solvent. Preparation of component (a) is exemplified.
Patent GB-705518-A (GB)
Title: Apparatus for filling bottles or like containers with liquid
Inventor: BROADHURST STANLEY FREDERICK
IPC: B67C3/16
Filed: 1951-05-25
Abstract: 705,518. Bottling. AKTIEBOLAGET WICANDERS KORKFABRIKER, Nov. 26,1951 [May 25, 1951], No. 12344/51. Addition to 638,053. Class 125 (2) In the liquid outlet 2 of the suction-filling device of the parent Specification there is provided, on a spider 8, a tube 9 which allows the escape from the Bottle 4 to the bell 10 of air displaced by the inflowing liquid. The main tank 1 is surmounted by a suction chamber 12 communicating through a large hole 14 with the bell 10 and -through smaller holes 16, 17 with the tank 1 and surroundings to allow the attainment of a higher vacuum in the bell 10 than in the tank 1.
Patent GB-378100-A (GB)
Title: Improvements relating to paper-making machines
IPC: D21F9/02
Filed: 1932-01-27
Abstract: 378,100. Paper-making machines. AITKEN, J. E., Westerton, Guard Bridge, Fife. Jan. 27, 1932, No. 12349/31. [Class 96.] In paper-making machines having an imperforate diaphragm beneath the wire-cloth 3 and adjacent the breast-roll 2, the diaphragm 7 comprises a strip of apron-cloth &c. secured to the first table-roll 4 and lying over certain of the remainder so as to be immovable in the direction of travel of the wire. The strip 7 is of the same width as the machine frame and may be secured to the side-bars 1, a cushion of water being maintained between the wire 3 and the diaphragm 7, and the fibres being felted by the shake prior to the pulp being drained.
Patent GB-567256-A (GB)
Title: Improvements in or relating to remote control of condensers in electrical circuits
IPC: H03J1/18
Filed: 1943-07-29
Abstract: 567,256. Distant control of condensers. STANDARD TELEPHONES & CABLES, Ltd., SEATH, E. G., SMITH & SONS (ENGLAND), Ltd., S., (formerly SMITH & SONS (MOTOR ACCESSORIES), Ltd., S.), and KLEPP, E. C. July 29, 1943, No. 12354. [Class 40 (i)] [Also in Group XXXVI] A tuning condenser is driven by the receiver of a distant control system of A.C. or D.C. resultant field type as described e.g. in Specifications 529,583, 537,833 and 545,730, the movements of the condenser being damped by enclosing the whole in an oil-filled casing. The oil also serves to protect the parts from moisture and to provide the condenser dielectric. The case may have a bellows form to allow for thermal expansion and contraction. The device may be mounted on an octal valve base.
Patent GB-914189-A (GB)
Title: Apparatus for recording high frequency electric signals
Inventor: CHATTAWAY MAURICE DAVID
IPC: G01N29/06
Filed: 1960-04-07
Abstract: 914,189. Ultrasonic flawdetection. T.I. (GROUP SERVICES) Ltd. April 6, 1961 [April 7, 1960], No. 12354/60. Class 40 (7). [Also in Group XXXVI] A frequency pen - recorder, particularly for use with ultrasonic flaw detectors, in which the pen 6 is oscillated over the paper 30 at a frequency synchronized with the frequency of the signals 3, 5, 4 to be recorded characterized in the provision of a gate 24 opened a predetermined number of times during each oscillation of the pen, the arrangement being that the pen only marks the paper on transmission of the signals to be recorded through the open gate. Signals 3, 5, 4 are displayed on an oscillograph 1 and represent the boundary of the material under test, the flaw, and the other boundary respectively. The pen is oscillated by a waveform 10 derived from a mains signal 8 (50 c.p.s.) and the ultrasonic transmitter repetition rate is synchronized at 7 to a multiple of 50 c.p.s. equal to the C.R.O. scan frequency of 1000 c.p.s. Signal 8 is also fed to a square-wave generator 13 and fed to the time-base unit 15 producing a ramp waveform 16 which is mixed with a scan-frequency signal 18 in mixer 17 to produce a waveform 19 which is converted into the gating signal 23 consisting of a burst of 10 pulses corresponding to half an oscillation of the pen and a time interval corresponding to the other half. When the gate is open the transmitter output signals are fed via pulsing circuits to the pen modulator 29 to cause the pen to mark the record 30. The outer marks correspond to the material boundaries and the inner ones to the flaw. If the traversing of the material under test is done by hand the rate will not be constant and the longitudinal position of the flaw will not be indicated. A space-dependent recording can be effected by a commutator 41, driving a pen 44, driven by relative movement of transceiver and billet. Trace 45 and record 30 can then be compared. The seriousness of the flaw can be determined by measuring the amplitude of the signal produced by reflections from the flaw. A pulse generator 51 incorporating a time delay is triggered by a pulse 2 and a gating pulse 52 for amplifier 25 is produced the duration of which extends from the end of signal 3 to the beginning of signal 4, so that only flaw signals pass through to peak amplitude modulator 54 on pen recorder 58. In order to avoid false indication of flaws a separate record is made on 68 of the amplitude of pulse 4.
Patent GB-1116705-A (GB)
Title: Improvements in or relating to the control of electric motors
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B66C13/26
Filed: 1966-03-21
Abstract: 1,116,705. Control of A.C. motors. G. W. KING Ltd. 10 March, 1967 [21 March, 1966], No. 12395/66. Heading H2J. A hoist motor 1 has separate high and low speed windings and an electromechanical brake winding 2 which, when either motor winding is fully energized, is energized in series with the other motor winding, the current through it being insufficient to influence the motor. Speed is selected by push button contacts 6, slight and heavy pressure being used to obtain low and high speed respectively.
Patent GB-1103765-A (GB)
Title: Improvements relating to mine ploughs
Inventor: RENWICK GEORGE
IPC: E21C27/32
Filed: 1964-03-24
Abstract: 1,103,765. Mineral mining machinery. COAL INDUSTRY (PATENTS) Ltd. 18 June, 1965 [24 March, 1964], No. 12399/64. Heading E1F. A double ended plough body is formed in two hollow parts providing compartments 6 for accommodating removable weights (not shown) to selectively increase or decrease the mass of the plough body to enable changes in the inertia of the moving plough to be made in accordance with changes in the resistance to stripping offered by the mineral. The body may, alternatively, be solid and have removable parts to alter the mass. The plough body is mounted on an armoured conveyor 10 and retained thereby plates 11 on the goaf side and by a curved plate 12 embracing a chain guide tube 13 on the face side of the conveyor. The underside 16 of the plough is of inverted U- shape to form a conveying tunnel 17 for the mineral above the conveyor and at least some of the cutter blades 8 are mounted on vertical pivot pins 7 and horizontal members 9.
Patent GB-767919-A (GB)
Title: Winding protection for coils
IPC: E06B9/90
Filed: 1955-04-29
Abstract: 767,919. Electric coils. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. April 29, 1955 [May 8, 1954], No. 12432/55. Class 35. A coil 1 is protected from surges by means of lightly insulated heavy gauge screens 7, 10, connected to its terminals and interposed between the coil and its magnetic core 2. The surge temporarily pierces the light insulation 11, 13, and being of heavy metal, the screen is not readily burnt by the ensuing arc. As shown, the screens consist of sheets of metal wrapped round so as to overlap and do not carry any significant load current, but in a modification the inner and outer layers of turns are of heavy strip which do carry load current. The screens may be of a material resistant to melting.
Patent GB-102929-A (GB)
Title: Device for Animating Photographs.
Inventor: PEREZ ALVARO MULLOR Y
IPC: G03B15/08
Filed: 1916-09-04
Abstract: 102,929. Mullor y Perez, A. Dec. 27, 1915. [Convention date]. Moving and changing apparatus. - Relates to apparatus for imparting animated effects to photographs by means of a superposed relativelymovable line screen, and comprises constructions of such apparatus in which the effects are produced by a rubbing action between the thumb and finger holding the apparatus. As shown in Fig. 2, a card B on which the photograph e is mounted is provided with long slots, and the card A carrying the screen b has tongues c, d, which are a little shorter than the slots and are passed through them and folded over at the back of the card A. In a modification, the line-screen card has outwardly-extending tongues engaging in grooves formed by the in-folded edges of the photograph card, one of the cards having a projecting strip for the operator. Elastic threads may connect the cards to cause them to resume their original position when released, and a frame h and a sheet of paper i are pasted to the cards to complete the apparatus. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification, particularly intended for photographs in albums, wherein the card carrying the screen has oblique slots into which the corners of the photograph are inserted. This subject-matter does not appear in the Specification as accepted.