baber/WOPTO huggingface dataset:
Patent GB-792684-A (GB)
Title: Improvements in or relating to devices comprising a polyphase transformer for frequency conversion
IPC: H02M5/00
Filed: 1955-11-11
Abstract: 792,684. Converting. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 11, 1955 [Nov. 11, 1954], No. 32303/55. Class 38 (2). In a circuit for supplying a single-phase welding load with current of reduced frequency from a three-phase supply, the sequence of firing of the reversely connected pairs of valves 8, 9; 10, 11; 12, 13 connected respectively in series with primary windings 5, 6, 8 of the output transformer 4 is shifted cyclically so that all valves are equally loaded.
Patent GB-434095-A (GB)
Title: Improvements in and relating to systems of electric motor control
IPC: H02P1/20
Filed: 1933-11-20
Abstract: 434,095. Master control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Starie, G. B.; 73, Van Antwerp Road, Schenectady, New York, U.S.A.) Nov. 20, 1933, No. 32344. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 22, 1934]. [Class 38 (iii)] In a sequential contactor system, movement of a controller 29 energizes one of two reversing contactors 23, 26 to complete energizing circuits for accelerating contactors 18, 19, 20 which open to insert accelerating resistance 12, 13, 14, in the motor circuit and complete, at contacts 41, 42, 43, an energizing circuit for a selfmaintaining starting contactor 44. The motor circuit is thus completed, and the contactor 44 in closing short-circuits the coil of the contactor 18 which is operated by spring or gravity after a time interval to cut out the section of resistance 12. The coil of the next contactor 19 is thus short-circuited, and the operations are repeated to accelerate the motor in timed steps. In a modification, the system is under the control of push-button switches, and the reversing contactors act as starting switches. There is also provided a dynamic braking resistance connected across the motor armature by the operation of a relay, the coil of which is connected across the armature through normally closed contacts on the reversing contactors.
Patent GB-923973-A (GB)
Title: Improvements in or relating to lamp-shades
IPC: F21V1/00
Filed: 1960-09-21
Abstract: 923,973. Lampshades. R. SKIEBE. Sept. 21, 1960, No. 32373/60. Class 75 (2). [Also in Group XV] A multilayer lampshade consists of a rigid, translucent, one-piece carrier layer, an interchangeable decorative layer and a translucent or partly translucent protective layer, the decorative layer and the protective layer being pressed against the carrier layer by a resilient layer having at least one cut-out portion such as a photo-mount or figure. The resilient layer may itself form the protective layer. The layers may be roughened at various points to assist in assembling or may be provided with projections, depressions or perforations for fitting them together. The opposite edges of the layers may be flanged or bent over and spring wire or strip may be introduced into them. In the form shown, the shade is made up of a cylindrical carrier layer 1, a decorative layer 2, a protective layer 3 and a resilient layer 4. The order of the layers may be reversed.
Patent GB-1386997-A (GB)
Title: Pinfall display on ball lift hood
IPC: A63D5/04
Filed: 1972-07-12
Abstract: 1386997 Bowling alleys BRUNSWICK CORP 12 July 1972 [12 July 1971] 32562/72 Heading A6D A pinfall indicator 5 for visually indicating pins standing on a bowling lane is mounted on a hood 1 for a bowling ball return lift positioned at the approach end of the lane. The panel 5 has a plurality of discs 8 each representing a particular pin, and means to illuminate each disc. Means for sensing which bowling pins are standing is arranged to supply electrical signals representative of pinfalls to control means which operates electrical power means to the disc illuminating means so that discs corresponding to pins standing are illuminated. The means for supplying electrical power to the discs and the control means are preferably sited adjacent the illuminating means e.g. in the ball hood 1, so that the discs are illuminated with substantially equal intensity irrespective of the total number of discs illuminated. Further the power supply to the illuminating means is of low voltage e.g. 6 volts to avoid damage due to vibrations. The control means preferably comprises transistorized light driven circuits which are responsive to signals from pin detecting means or from an automatic scoring device. Two indicators may be arranged on the same ball return hood to indicate pins standing in an adjacent pair of lanes. Suitable electric circuitry is illustrated Figs. 5 and 6 (not shown).
Patent GB-898515-A (GB)
Title: A foundry shell molding apparatus and method
IPC: B22C23/00
Filed: 1960-09-22
Abstract: 898,515. Moulding-machines. CHRISTENSEN, A. C., and CHRISTENSEN Jun., A. C. Sept. 22, 1960 [Sept. 28, 1959], No. 32570/60. Class 83 (1). In a shell moulding process the sand mix is fluidized in the mix chamber by the introduction of compressed gas thereto, and then displaced into the cavity of a heated mould box by reducing the size of the chamber. Mould box halves 62, 64, for forming a shell core and radiant heaters in housings 44 are carried on brackets 30 which are slidable on guides 26 and moved thereon to open or close the box halves, Figs. 1 and 3 respectively by linkages 74, 76, 78 actuated by a shaft 70 rotated by a cylinder MC. A mix chamber 88 is supported below the mould box on a pivoted yoke 90, so that it may be raised into sealing engagement with the box by actuation of a cylinder IC whose piston rod 100 is secured to the inner end 98 of the yoke 90. The mix chamber returns to its lower position under its own weight when the cylinder IC is exhausted. Pressure air is supplied to the chamber to fluidize the mix through jets 118, Fig. 6, in a manifold 120, and the fluidized mix is lifted into the box by applying pressure air behind a diaphragm 106 relief of such pressure allowing surplus mix to fall back. The control circuit includes timers for the investment and curing periods and a buzzer and warning light to indicate the need to operate valves IV and MV which control the raising and lowering of the mix chamber, and the opening and closing of the mould box respectively. A limit switch LS is actuated by the end 98 of the yoke 98 when the chamber 88 is raised to energize the timers IT and CT. In a modification the valves IV and MV are held in the operative position by latches which are released by magnets under control of timers IT and CT.
Patent GB-316065-A (GB)
Title: Improvements in gaiters for personal wear
IPC: A43B23/02
Filed: 1928-11-08
Abstract: 316,065. Ballard, r. R. Nov. 8, 1928. Gaiters. - To each side of a gaiter is fastened a strap 2 or the like having a hook element 3 for co-operating with a complementary eye element 6 on each side of a boot or shoe, thereby obviating the use of a strap passing under the instep of the boot or shoe. The strap 2 may have adjustment means provided at 4. The fastening element 3 is preferably a flat hook which lies flat against the shoe when engaged by the eye portion of the fastening element 6. The pair of fastening elements 6 may be carried on a plate passing under the instep.
Patent GB-501333-A (GB)
Title: Apparatus for electrically testing the thickness of coatings or of other thin layers
IPC: G01B7/06
Filed: 1938-03-16
Abstract: 501,333. Magnetic tests; inductance measurements. TAIT, W. H. March 16, 1938, No. 32595. Divided out of 498,032. [Class 37] Apparatus for determining the thickness of a coating upon a metal base, for example, a vitreous enamel on iron or steel, or tin or nickel on steel, or nickel on brass, or of a layer of magnetic or non-magnetic material such as foil, paper or rubber, comprises a transformer having two U-shape cores arranged in parallel planes and connected by a pivot. Fig. 1 is a diagram of a testing circuit, the transformer, Fig. 6, comprising two cores s, t connected by a pivot device pv. An opposing potential can be applied to the instrument circuit for modifying the zero point. The transformers are provided with a magnetic link y closing the circuit between the poles and the layer of material being tested. Specification 498,032 is referred to.
Patent GB-984148-A (GB)
Title: Improvements in gas turbine power units, particularly for automobiles
IPC: F02C3/10
Filed: 1963-08-17
Abstract: 984,148. Change-speed gear; positive clutches. A. P. PEDRICK, and J. BOTTRILL. Aug. 17, 1963, No. 32624/63. Headings F2C and F2D. [Also in Division F1] A gas turbine engine, Fig. 1 (see Division F1), comprises a compressor 2 driven by a turbine 4 and a sleeved plate 9 carrying pinions 11 meshing radially inwardly with a pinion 13 on a collar 14 keyed to the compressor 2 and radially outwardly with a fixed ring gear 12 to form an epicyclic assembly, Fig. 1A, Plate 9, incorporates a centrifugal clutch. Fig. 10, comprising balls 15 engaging in hemispherical recesses in the driving shaft 5, springs 16 and adjustable stops 17. A freewheel device, Fig. 1D, comprising balls 19 in inclined slots 20 is provided between collar 14 and shaft 15. During low speed running the turbine 4 drives the compressor 2 through the step-up epicyclic gearing so that the compressor 2 rotates faster than the turbine 4. At a predetermined speed balls 15 of the centrifugal clutch disengage from shaft 5 to leave compressor 2 freewheeling on shaft 5. When the speed of the accelerating shaft 5 reaches that of the compressor 2 the freewheel engages so that the turbine 4 and compressor 2 rotate at the same speed. Specifications 347,206, 597,261, 755,925 and 768,370 are referred to.
Patent GB-749553-A (GB)
Title: Improved method of and apparatus for passing strips of metal twice through a surface-working machine to work first one surface and then the other
IPC: B21B41/04
Filed: 1953-11-24
Abstract: 749,553. Sheet-delivery apparatus. AKTIEBOLAGET SVENSKA METALLVERKEN. Nov. 24, 1953 [Nov. 24, 1952], No. 32646/53. Class 100 (1). [Also in Group XXII]  Apparatus for passing metal strip twice through a surface-working machine to work first one side and then the other, comprises a feed-platform 1 from which a strip 4 is fed by apparatus 3 which may be of the kind disclosed in Specification 737,069, on to a bed 4a and to one or more treating machines 8, e.g. milling machines, and a curved roller conveyer 16 capable of being connected to bed 4a by pivoted switch 14 whereby the strip is guided upwardly and rearwardly, in relation to the feed-in direction of machine 8, so as to be turned over. The strip then passes down a shoot 22 or roller conveyer to engage feed rollers 24 which pass it on to a bed 25 with its previously lower surface uppermost. Alternatively, the shoot may feed the strip back on to platform 1. On reversing the feed rollers 24, the strip is fed along guide 26 and on to bed 4a to pass through machine 8 which treats the other surface. The feeding cycle may be repeated until both sides have been sufficiently treated and finally the strip is passed out either by engaging the strip with feed rollers 3 which are reversed, or by raising switch 14 so that the strip passes on to a conveyer 12.
Patent GB-335776-A (GB)
Title: Improvements in or relating to apparatus for tipping and discharging railway wagons
IPC: B65G63/06
Filed: 1929-10-28
Abstract: 335,776. Ellson, B. E. Oct. 28, 1929. Tipping-apparatus.-Apparatus for the hoisting and endwise tipping of railway wagons, of the kind described in Specification 329,177, is provided with means for tilting the wagon so as to discharge the contents at any desired level and with means such as hooks on the hoisting ropes to allow loads other than wagons to be handled. The hoisting platform. A has an anchoring post B carrying a hook C with which the wagon coupling is engaged. Ropes E connected to the platform carry the major part of the load while ropes F operated from the tippler hoist (not shown) tip the platform endways so that the wagon discharges through the end door D. The hoisting ropes G, H, Fig. 4, may be fitted with hooks for connection to the platform and the apparatus can be used without the platform for handling loads other than wagons. Specifications 291,489 and 294.847 are referred to.
Patent GB-1208483-A (GB)
Title: Gate circuit and switching system
IPC: G11C11/06
Filed: 1968-07-09
Abstract: 1,208,483. Diode switch; magnetic storage arrangements. INTERNATIONAL BUSINESS MACHINES CORP. 9 July, 1968 [29 Nov., 1967], No. 32730/68. Headings H3B and H3T. A circuit 10B is switchable to at least two conditions, in one of which it causes a chargestorage diode 14 to forwardly conduct and accumulate stored charge carriers which, when the circuit 10B again reverse biases the diode 14 are available to effectively connect the diode cathode potential Eref to a load, such as a diode 16 and memory word line 17 of a word organized thin film storage matrix 18. With no input to either of the control terminals A<SP>1</SP>, a<SP>1</SP> of the circuit 10B, transistor 1 is OFF and transistor 2 conducts to keep the diode 14 discharged. Positive current in a<SP>1</SP> turns OFF transistor 2 and prepares transistor 1 to be turned ON by a negative voltage on A<SP>1</SP>; conduction of transistor 1 charges the diode 14. Subsequent current flow by charged carriers from the diode 14 to the line Y1 occurs when, for example, an X-line is selected by its corresponding current sink 19 to provide a low impedance load for the diode. Current flow ceases when: the charge carriers are exhausted; or the current sink returns the load to a high impedance condition; or when the transistor 2 conducts upon cessation of the current in a<SP>1</SP>. The circuit 10B, alternatively, could be switched to a condition where both transistors 1 and 2 are OFF (a<SP>1</SP> present, A<SP>1</SP> absent) after the diode 14 has been charged and before the load is switched to its low impedance condition, so that the diode holds its charge until a line X1, X2 &c. is selected; termination is as before. Further circuits 10<SP>1</SP>, 1011 &c. similar to 10, and a plurality of current sinks 19 complete the drive circuits for the matrix 18. A matrix (40, Fig. 2, not shown) of circuits (10) each similar to the combination 10<SP>1</SP> of 10A and 10B of Fig. 1, may be used to drive a set of selection lines of a memory, or may drive the word lines 17 directly. The A<SP>1</SP> inputs of the circuits (10) are provided by a set of voltage signal sources (20), and the a<SP>1</SP> inputs by a set of current drive signal sources (30). The voltage sources each consist of a transistor whose base receives a control signal (21a, 22a &c.) and whose emitter is connected to the terminal A and collector to the reference voltage (Earth) through a diode (46). The current sources (30) each have two transistors (47, 48), one (47) being an emitter follower passing the input control signal (31a, 32a &c.) to the second (48) which has a collector resistor (30b) and from whose collector the signal to the corresponding a<SP>1</SP> input is taken.
Patent GB-1452262-A (GB)
Title: Pessary ring electrode system
IPC: A61F6/08
Filed: 1972-07-13
Abstract: 1452262 Pessaries DEVICES IMPLANTS Ltd 12 Oct 1973 [13 July 1972] 32914/72 Heading A5R A ring-shaped flexible pessary incorporates two metal electrodes 2, 3, Fig. 2, connected to insulated leads 5 to which an electric potential difference may be applied for the control of urinary incontinence, the complete ring being made up of a limb 1 carrying an electrode at, or near, each end, and a second limb 4 which may be cut to a suitable length so as to make the pessary fit any patient. Each electrode (Fig. 8) is a push-fit within the tubular limb 1, and comprises an annular ring-portion 11 supported by a web 12 on a body 13 terminating in toothed portions 16, which engage the bores of the tubes 1, 4. The outer edges of the tube-ends are accommodated within the ring-portion 11. A threaded hole 18 is provided to secure the lead by means of a screw (not shown). After the leads have been attached to the electrodes, the interior of the tubular limb 1 is filled with a flexible heat-curable resin.
Patent GB-262961-A (GB)
Title: An improved waterproof composition
IPC: C08L95/00
Filed: 1925-12-31
Abstract: 262,961. Illemann, R. Dec. 31, 1925. Bituminous compositions. - An elastic waterproof composition is made by adding a liquid bituminous substance or a mineral wax to a heated creamy suspension of stone flour in water. the mass being boiled and stirred until it assumes a stiff pasty condition.
Patent GB-365680-A (GB)
Title: Improvements in or relating to the control of direct current electric power systems
IPC: B63H23/24
Filed: 1930-11-03
Abstract: 365,680. Running generators in series. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, JAFFREY, J. A., 135, Murray Road, and ORCHARD, H., 30, Claremont Road, both in Rugby. Nov. 3, 1930, No. 33034. [Classes 35 and 38 (iv).] Exciting.-In a series system means are provided to enable a machine to be inserted in, or inserted in and removed from, circuit without breaking the switch contacts. To insert a machine, switch F being closed and switches G being closed on their upper contacts, exciting current is supplied to the shunt winding C through a resistance K which is adjusted to give a current in the short-circuited armature A equal to that in the main circuit. The differential series field B facilitates this being done in a stable manner. Switch F is then opened and the resistance is short-circuited. To remove the machine the exciting winding C is sectionalized and the sections connected in parallel with the armature A to demagnetize the field, as described in Specification 364,176, and the switch F is closed.
Patent GB-945769-A (GB)
Title: Improvements in or relating to apparatus for use in the production of frozen confections
IPC: A23G9/26
Filed: 1959-09-29
Abstract: 945,769. Endless conveyers. J. OLDHAM. Dec. 8, 1960 [Sept. 29, 1959], No. 33063/59. Heading B8A. Sticks 24 for " iced lollies" are fed from a laterally spaced series of shoots 27 by pushers 28 actuated by a pneumatic cylinder 33a in timed sequence with the movement of an endless conveyer 17. The sticks 24 are thereby fed into receiving elements (which have means to grip the sticks) 18 carried by a member 22 secured to endless chains of the conveyer 17. The member 22 carrying its four vertically spaced rows of stick receiving elements 18 passes eventually to a withdrawal station 5 where a projection 50 on the holder 22 engages a switch 49 to stop the motor 34 of the conveyer 17. A stick holder 6 is then lowered and it has apertures which engage the sticks in the elements 18 of the holder 22 and thereby removes them from the elements 18. Next the holder 6 is raised to remove the sticks and a projection 51 engages a switch 52 to start the motor 34 again. The holder 6 transfers the sticks to a mould in which the " lollies " are to be frozen. Instead of the elements 18 of each holder 22 being loaded one row at a time as shown, all the elements 18 may be loaded simultaneously. Instead of the endless chain conveyer shown a reciprocating transfer may be effected between the shoots 27 and the holders 5.
Patent GB-323856-A (GB)
Title: Improvements relating to anti-dazzle screens or light shields for use upon motor cars and the like
IPC: B60J3/02
Filed: 1928-11-12
Abstract: 323,856. John, A. S. Nov. 12, 1928. No Patent granted (Sealing fee not paid). Anti-dazzle screens.-An anti-dazzle screen for the use of vehicle drivers is attached to the windscreen 1 or similar support by means of a pneumatic sucker 2, Fig. 1, having projecting to the rear thereof a threaded stem 3, which carries a wing-nut 5 or similar fastening device and upon which the anti-dazzle screen 4 is pivotally adjustable by movement relative to the fastening device. To allow adjustment of the screen 4 without first loosening the wing-nut 3, spring washers 6 may be disposed between the anti-dazzle screen and the wing-nut 5 and an annular bearing-piece 7, the hinge being sufficiently rigid to prevent displacement of the screen 4 by vibration of the vehicle. In a modification, Fig. 2, the screen 4 is carried by an horizontal arm 11 which is rotatable about a stem 8 adjustably mounted on the threaded stem 3. The antidazzle screen preferably has an inclined lower edge, various shapes of screen being described, while the hole for the passage of the stem 3 may be made either in the screen itself or in the frame thereof.
Patent GB-363469-A (GB)
Title: Improvements in or relating to gearing for steering mechanically propelled vehicles and for other purposes
IPC: B62D3/04
Filed: 1930-11-05
Abstract: 363,469. Steering boats. JOHNSTON, R. H. and BISHOP TRANSMISSION CO., Ltd., Kingsbury House, King Street, St. James's, London. Nov. 5, 1930, No. 33259. [Class 114.] Relates to steering gear of the kind in which a helical or worm groove 1 cut in a cylindrical or conical member fixed on an operating shaft is engaged by a pin or roller 3 mounted on a rocker arm 2 movable in a plane parallel to the axis or the side of the cam. The present invention comprises the combination with gearing of the above kind of means to press or maintain the pin or roller in engagement with the cam constituted of (1) a plurality of plates, such as 7, 8, arranged one behind the other and close together and normally separated by a thin film of oil, or (2) a single plate so arranged that a thin film of oil exists between it and the rocker arm and between it and the coverplate 6. In the construction shown applied to the steering gear of a motor vehicle shims 9, 12, 13 are provided between the plates 7, 8, the rocker arm, and the cover-plate. The casing 5 contains a liquid such as oil, and holes 10, which may be in line or staggered, are provided in the plates so that when the plates are deformed a dashpot action is obtained. The plates are preferably spring plates. For light loads the shock is taken by the springiness of the plates, and for heavy loads first by the springiness of the plates and then by the oil films between the plates. Specification 361,497 is referred to.
Patent GB-1007580-A (GB)
Title: Improved method of flameproofing
IPC: D06M15/673
Filed: 1962-08-30
Abstract: Cellulosic textile material is flame-proofed by impregnation with an aqueous polymerizable solution comprising a tetrakis (a -hydroxyorgano) phosphonium chloride, urea or thiourea, a copolymerisable cyclic nitrogen-containing compound, and an acid polymerisation catalyst, drying at 150-250 DEG F. for 2-60 min, and finally treating with aqueous or gaseous ammonia.  The aqueous polymerizable solution may have a pH of 4-8.  It may contain 10-30% of the phosphonium chloride, 1-10% of urea or thiourea, 5-15% of cyclic nitrogen-containing compound, 1-10% of catalyst, and 35-80% of water.  The organo group of the phosphonium compound may be methyl, ethyl, propyl, propenyl, or butenyl.  The cyclic nitrogen-containing compound may be trimethylol melamine, dimethylol triazone, methylol melamine trimethyl ether, dimethylol ethylene urea, or dimethylol propylene urea.  The catalyst may be trimethylol, triethanol, tripropanol or tributanol amine hydrochloride, which may be formed in situ from the tertiary alkanol amine.  It may alternatively be a tertiary amine hydrochloride, magnesium sulphate or chloride, or zinc sulphate or nitrate.  The aqueous ammonia may be in the form of aqueous ammonium carbonate, acetate or formate.  Aqueous ammonium hydroxide may contain 3-10% of ammonia.