baber/WOPTO huggingface dataset:
Patent GB-240946-A (GB)
Title: Improvements in or relating to means for bridging terminals of an electric circuit
IPC: H01R13/703
Filed: 1924-07-24
Abstract: 240,946. Sutter, J. July 24, 1924. Inductances.-A device for automatically bridging terminals of an electric circuit, especially applicable to coil holders in wireless receiving sets, comprises a spring arm 6 fixed at one end to one terminal member 5 and normally engaging, at the other end, a terminal socket member 2, the arm carrying, at this end, an insulating member 8 against which the plug pin inserted into the socket member bears for moving the spring arm out of electrical connection with the socket member.
Patent GB-515949-A (GB)
Title: Improvements in or relating to melting crucibles or pots
IPC: F27B14/08
Filed: 1938-06-15
Abstract: 515,949. Crucible furnaces. PITTAWAY, H., and WARD, E. G. June 15, 1938, No. 17740. [Class 51 (ii)] To prevent a crucible burning away in one spot it is raised every now and then on a support, which, being rotatable, can be made by hand to turn. with the supported pot.
Patent GB-874115-A (GB)
Title: An improved driving circuit for square loop magnetic cores
Inventor: LOUGHHEAD WILLIAM ALBERT EDWAR
IPC: H03K3/30
Filed: 1959-05-25
Abstract: 874,115. Transistor switching circuits. ERICSSON TELEPHONES Ltd. May 18, 1960 [May 25, 1959], No. 17808/59. Class 40(6) A driving circuit for a square loop magnetic core, comprises a transistor VT2 having its collector connected through a driving winding 2 of a magnetic core 1 to a first terminal, its emitter connected through a resistor R2 to a second terminal, and its base connected through a resistor R1 in parallel with a diode D1 to a third terminal and a second diode D2 connected from the third terminal to the collector. Either the second or the third terminal is connected to the output of a blocking oscillator and the other two are connected to the two poles of a source of operating potential, the arrangement being such that output pulses from the blocking oscillator cause the collector of VT2 to bottom to an extent controlled by diode D2. As shown in Fig. 4, the blocking oscillator comprises a transistor VT1 with a transformer TF connected between the collector and emitter electrodes, the primary winding being shunted by a diode D3 and a resistor R6 in series. Triggering pulses are applied to terminal 15, and the oscillator output is produced in one or more tertiary windings 10 on transformer TF, each winding being connected to a separate driving circuit. The output from the winding 10 is fed on to the base of transistor VT2 to cut it on and cause current to flow through the winding 2 of core 1. Several cores may be connected to each driving circuit with their windings 2 in series. In an alternative arrangement, Fig. 6 (not shown), the input to the drive circuit is fed on to the emitter instead of the base.
Patent GB-1105566-A (GB)
Title: Mounting member for vibratory device and extrusion apparatus incorporating the same
Inventor: JONES JAMES BYRON
IPC: B29C48/03
Filed: 1965-04-28
Abstract: 1,105,566. Extrusion; die vibrators. AEROPROJECTS Inc. 28 April, 1965, No. 17869/65. Heading B5A. [Also in Divisions B3 and H4] Materials such as metals, alloys, plastics, carbon and ceramics are forced from a cylinder 12 by a ram 14 to be extruded through a nozzle 16, the cylinder 12 and nozzle 16 being interconnected by a resonant mount 34 having a flange 38, and the mount 34 having attached to its lower end a vibrator comprising horns 50 and magnetostrictive transducers 52. In the case of metals, a billet is placed in tube 12 and heating is effected by gas flame or electric filament cartridges. The flange 38 is situated a distance Y from the open end 36 of resonant mount 34 equivalent to an acoustical distance of an odd number of  wavelengths, i.e. a nodal position, with the length X of the mount being equivalent to an even multiple of  wavelengths. The above dimensions are determined by the material of which the mount is made and the frequency at which it is to be used. The transducer 52 may be made of metal, e.g. nickel, or alloys of iron with cobalt, nickel or aluminium, or, particularly for frequencies above 75,000 c.p.s., of piezoelectric materials such as barium titanate, lead zirconafe, or quartz crystals. Alternatively, the transducers may be electromagnetic, utilizing a moving coil. A frequency range of 30-30,000 c.p.s. is mentioned, a preferred operating frequency being 20,000 c.p.s. In a modification, Fig. 2 (not shown), the vibrator encompasses the resonant mount 34. Several detailed examples are given.
Patent GB-124710-A (GB)
Title: Improvements in or relating to Hollow Girders.
Inventor: ETTORE CARETTA
IPC: B64C1/06
Filed: 1918-11-01
Abstract: 124,710. Caretta, E. March 25, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Framework.-A tubular girder applicable for the frames of aircraft is four or more sided in cross-section and made of a single piece, as by extrusion through a die. It is stiffened by flanges 1, or projections 2 on one or more of the walls, or by corrugations 3, or by the hollow-edge, formation shown in Fig. 7. The walls may be of different thicknesses.
Patent GB-504005-A (GB)
Title: Improvements in or relating to engine stop gear more particularly for power-driven vehicles
IPC: H01H35/14
Filed: 1938-06-16
Abstract: 504,005. Engine stop-gear. SCHWIEBERT, J. June 16, 1938, No. 17928. [Class 122 (iv)] A weight D connected by a wire rope M to a switch P controlling the ignition and the supply of fuel to a motor, rests in a recess C of a drum, and is displaceable in all directions from which a collision or shock may occur. The weight is held in position by spring-pressed plates N and adjustable helical springs H. The bottom of the drum is inclined so that, after displacement, the weight under the action of the springs returns to its. normal position. Shoulders 0 on the springs N normally retain the weight in its rest position. The stop gear may be cut out by a switch.
Patent GB-1086393-A (GB)
Title: Improvements in or relating to adhesive tape dispensing appliances
IPC: B65H35/00
Filed: 1965-04-29
Abstract: 1,086,393. Tape dispensers. J. B. CURRY. April 29, 1965, No. 18000/65 Heading A4G. In a tape dispenser, on turning lever 3 about pivot 3b a spring-loaded plunger 4 pivoted on finger 6 lifts a cross-bar 6a in an inclined slot 13c in a shoe 13 to grip the adhesive side of the tape 16a and then swings a finger projection 6b into contact with the tape, after which the tape is shifted by the projection and shoe along the base of a channel member 2 towards an application point and cutter 2d. On releasing lever 3, the shoe moves back between stops 2e, the shoe and projection detaching themselves from the tape and a further propulsion of the tape may be effected by again depressing lever 3. A pawl 15 prevents reverse tape movement.
Patent GB-1031112-A (GB)
Title: Improvements in and relating to knitted fabric
Inventor: PRINCE FRANCIS WILLIAM
IPC: D04B1/06
Filed: 1962-05-11
Abstract: A plain, run resistant fabric consists of a repeating sequence of courses which comprises a one-and-one tuck loop course having tuck loops in even wales, a plain course following the tuck loop course, a further one-and-one tuck loop course with tuck loops in odd wales and a plain course following the second tuck loop course, wherein the courses of the two kinds are knitted relatively tightly and slackly and at least some of the courses contain stretch yarn.  Various combinations of "S" and "Z" twist yarns and high torque yarns may be employed.
Patent GB-897028-A (GB)
Title: Improvements in foundation piles and methods of making them
IPC: E02D5/52
Filed: 1960-05-23
Abstract: 897,028. Piles. NIPPON SHARYO SEIZO KAISHA Ltd. May 23, 1960 [May 25, 1959], No. 18163/60. Class 68(2). A concrete pile unit 1 has a number of longitudinal grooves 11, ribs 12 having steel reinforcements 13, a central grout hole 14 with sockets 15 at each end and a number of grout holes 18 opening into grooves 11. Pile units are connected together by means of steel joints 21 (Fig. 4) and are lowered into a hole 3 being guided by a steel pipe 31. The lower pile unit is connected through wire 51, quick release device 52, wire 53 to a winch (not shown) and the assembly is lowered until skin function is sufficient to hold the units together, and the assembly is then driven further by thrust yoke 6. Aggregates 7 are then filled in grooves 11 and finally cement milk under pressure is forced through grout hole 14 to penetrate to the grooves 11, the end 33 and connecting parts 22 of a regular surface to the pile is required then cover-plates can be used to enclose the grooves 11. In a further embodiment the units are formed having longitudinal holes instead of grooves.
Patent GB-851344-A (GB)
Title: System and apparatus for magnetically recording binary digits
IPC: G11B20/14
Filed: 1959-05-28
Abstract: 851,344. Electrical digital-data storage apparatus. OLIVETTI & CIE S.p.A. ING. C. May 28, 1959 [June 5, 1958], No. 18165/59. Class 106 (1). In magnetically recording binary digits on a moving magnetic record medium, each digitrepresenting pulse PP or NP energizing the recording head is preceded by a saturating pulse AP of constant polarity. As shown in Fig. 3 binary digits are stored in a shift register 1 advanced by pulses on a line 6 from pulse generator 8. Recording pulses are derived from bi-stable magnetic cores 18 to 20 of which 19 and 20 are connected as a trigger pair. When energized windings 21, 25 and 30 drive the associated core to the positive stable state, windings 22, 26 to 29 drive the associated core to the negative stable state. Generator 8 emits A, B and C pulses the relative timings of which are shown in Fig. 4. In operation an A pulse drives cores 18 and 19 positive, core 20 negative. A B pulse switches core 18 and advances register 1. If the register output is a binary 1 cores 19 and 20 are switched but the output of core 20 is suppressed by diodes 34 resulting in a binary 0 being written. If the register output is a binary 0, denoted by absence of a pulse, the switching of core 18 causes a binary 0 to be written. The C pulse then drives all cores negative causing a 1 or 0 to be written dependent on the previous output of the shift register.
Patent GB-1502450-A (GB)
Title: Fuser member and method for fixing toner
IPC: G03G15/20
Filed: 1975-05-01
Abstract: 1502450 Rollers XEROX CORP 1 May 1975 [14 Aug 1974] 18220/75 Heading F2U [Also in Divisions C3 B2 and B6] A fuser roller for fixing a resin-based powder image to a substrate in a xerographic process at elevated temperatures has a fuser surface of silicone rubber capable of degradation in the presence of water at 200 F. or more and containing a water-bearing agent which supplies sufficient water to the rubber at said temperature to cause said degradation. The degradation product appears to be an oil which forms at the surface to prevent degradation. Suitable sources of water include hydrated starch, hydrated minerals, colloidal silica, substances decomposing to give water, substances reacting to give water, and capsules of water. In the examples a copper fuser roll is given a 10 mil coating of a methyl vinyl polysiloxane blended with 1À5 or 5 wt. per cent of colloidal silica and a conventional curing agent, then heated at 400 F. for half an hour.
Patent GB-1593127-A (GB)
Title: Filter of the porous metal type
IPC: B01D65/02
Filed: 1978-05-08
Abstract: A porous isopermeable tubular inertial filter with a large pore size has a slurry of fine particles flowed through it while an effluent is withdrawn through a jacket disposed about it until a thin inner layer of pores become clogged by the fine particles. The filter is then dried and the fine particles sintered in place to provide an inertial tubular filter with a upstream inner surface having a thin layer providing a high degree of filtration supported by the larger pore tubular filter.
Patent GB-908368-A (GB)
Title: Tape applying machine
Inventor: ODELL LESLIE CHARLES WILLIAM
IPC: A43D43/06
Filed: 1960-05-24
Abstract: 908,368. Tape applying machines. FAIRE BROS. & CO. Ltd. May 24, 1961 [May 24, 1960], No. 18340/60. Class 73. A taping machine, e.g. for applying adhesive tape along the vamp seam of footwear uppers, is designed to allow differential motion of the work support surfaces when applying the tape along the sharp curvature of the seam. For this purpose the tape T, Fig. 1, and workpiece, Fig. 3 (not shown), are fed between a driving feed roll 6 and work support rolls 3, the rolls 3 comprising two outer bevelled and rubber-tyred rolls 3a, Fig. 2, and a central roll 3b of smaller diameter, each being mounted for free and independent rotation on a spindle 4, the rolls being shown spaced apart in Fig. 3 for clarity but actually running in face to face contact. A guide 5 runs in the outside crease of the seam which faces downwardly, while in the inside of the vamp the stitched margins pass through a groove in the lower end of a guide 12 (shown in its upper position) and are flattened and covered by tape drawn from a tape guide 7 as the work passes between the rolls 3 and the feed rolls 6, 8. The guide 12 is brought to its lower guiding position by presentation of the work into the machine which moves a trigger 9 to operate a microswitch 11, this switch also controlling the movements of a tape-severing knife 13. The roll 6 and/or 8 may be formed similarly to the rolls 3. U.S.A. Specification 2,871,493 is referred to.
Patent GB-1510150-A (GB)
Title: Electrically controllable attenuators for vhf circuits
IPC: H03H7/24
Filed: 1975-05-02
Abstract: 1510150 Variable attenuators SIEMENS AG 2 May 1975 [10 May 1974] 18364/75 Heading H4R The duality condition is maintained between the impedances of the bridge and shunt arms of a bridged-T-section of an electrically controllable attenuator by providing variable impedance elements which are maintained equal and one of which is connected via a transmission line transformer whose electrical length is an odd-numbered multiple of a quarter wavelength at the mean operating frequency. The surge impedance of the line transformer is preferably equal to that of the attenuator.The line transformer may be a coaxial line, a symmetrical twin-conductor line or a waveguide. As shown the impedance elements are PIN diodes r 2 , Fig. 2, and r 1 , Fig. 3, and the attenuator input and output are constituted by coaxial lines Le, La. In the embodiment of Fig. 2 a quarterwavelength line transformer LT is connected to shunt impedance r 2 . The value of the impedance r 2  is determined by a device EE which supplies a common current ir to both diodes via impedance R 0  and choke Dr. The embodiment of Fig. 3 comprises a line transformer LT' in the bridge arm of the attenuator.
Patent GB-1221810-A (GB)
Title: Improvements in or relating to mechanical oscillator control circuits
IPC: G04C3/06
Filed: 1968-04-19
Abstract: 1,221,810. Electric clocks. SIEMENS A. G. April 19, 1968 [April 19, 1967], No. 18385/68. Heading G3T. The control circuit of a mechanical oscillator such as a clock pendulum or balance wheel comprises a drive coil S and a magnet system (not shown) mounted for relative movement, the coil S being connected to the collector of a transistor T 2  controlled by a complementary transistor T 1 , the transistors T 1 , T 2  forming an astable multi-vibrator arrangement and having a coupling path from each collector to the other base, the coupling path from the collector of the drive transistor T 2  to the base of the control transistor T 1  including two parallel paths one including a resistor R 5  and the other including a resistor R 8  and a phase-shifting device, such as a transistor T 3  so that the junction 3 of the two branch paths has a current mode point when the control circuit is operating.
Patent GB-244668-A (GB)
Title: A measuring device for use in the game of bowls and the like
IPC: A63B67/06
Filed: 1925-07-20
Abstract: 244,668. Small, W. July 20, 1925. Measuring-tapes. - A measuring device for use in the game of bowls comprises a spiked cup 1 adapted to fit over the " jack " and having a pin 4 carrying a rotatable member 5 and a cord reel 7. The cord is drawn out to the desired length through a slot in the member 6, and further rotation of the reel relatively to the member 5 is prevented by inserting a pin 11 into holes 8, 9.
Patent GB-146436-A (GB)
Title: Dynamic system adapted to impart to a mechanical system a rapid movement of oscillation
IPC: F04F7/00
Filed: 1920-07-03
Abstract: 146,436. Denis, L. L. B. June 25, 1919, [Convention date]. Momentum apparatus.-Relates to means for imparting rapid oscillations to mechanical systems such as the water-raising devices described in Specification 130,332, and consists in providing an elastic attachment between the part to be oscillated and the stationary base and in utilizing the inertia of an auxiliary mass oscillated by the motor to cause oscillations in the said part. Fig. 1 shows the invention as applied to a device for raising water described in the earlier Specification. The pipe a is secured by a spring d to a fixture e, and pivoted to it at i is a lever f carrying a weight g which is oscillated by a motor &c. connected to the lever at h. In starting the motor, the weight g alone is oscillated, but when the frequency of the oscillations of the weight g becomes that natural to the pipe a the latter also is oscillated. The spring d may take various forms other than that shown, and the lever may be oscillated by the motor in various ways, e.g. by a crank p<1> as shown in Fig. 7. In modifications, the pipe a is connected directly to the piston or cylinder of a fluid-pressure motor, or a motor may be carried on the pipe. Fig. 11 shows an apparatus for giving the lever f a number of oscillations driving one revolution of a hand or motor-driven shaft x<1>.
Patent GB-595881-A (GB)
Title: The preparation of new polymerisable organic materials and polymers thereof
IPC: C08F22/10
Filed: 1945-07-20
Abstract: Polymerizable esters are obtained by reacting one or more mono-acrylic or alpha-substituted mono-acrylic esters of dihydric alcohols with a dicarboxylic acid or an ester-forming derivative thereof in the presence of a polymerization inhibitor, thus forming a tetraester of the formula CH2=CX1.CO.O.R1.O.CO.Z.CO.O.R11. O.CO.CX11=CH2, where X1 and X11 are hydrogen, halogen, or monvalent hydrocarbon radicals, R1 and R11 are divalent organic radicals, and Z is nothing or a divalent hydrocarbon radical.  The tetra-esters may be polymerized, preferably in presence of a polymerization catalyst. Substituted acrylic acids specified are methacrylic and alpha-chloracrylic acids, dihydric alcohols specified are ethylene, trimethylene, a -propylene and di- and other polyethylene glycols, and dicarboxylic acids specified are oxalic, maleic, succinic, adipic and phthalic acids.  The dicarboxylic acid is preferably added to the mixture obtained when a monoacrylic ester of a dihydric alcohol is prepared in presence of a water-azeotrope forming liquid, a polymerization inhibitor and esterification catalyst, and substantially all the water has been removed from the mixture, e.g by azeotropic distillation.  One molecule of dicarboxylic acid is preferably used for two molecules of the monoester, and the reaction, and also the preparation of the monoesters are carried out in glass- or enamel-lined vessels. A polymerization inhibitor specified is hydroquinone, esterification catalysts are sulphuric or benzene-sulphonic acids, or hydroquinone disulphonic acid may be employed to serve both purposes.  Polymerization may be effected of the tetraesters alone or in admixture, or of the tetraesters mixed with another unsaturated substance such as glycol dimethacrylate, methyl methacrylate, vinyl chloride, vinyl acetate, styrene, maleic anhydride, or the polyesters of maleic or fumaric acid and dihydric alcohols.  Dyes, pigments, fillers, reinforcing materials and thermoplastic polymers may also be incorporated during polymerization.  The tetraesters are used for bonding sheets of fibrous material together, when a dissolved polymer, e.g. polymethyl methacrylate, is preferably present.  In examples: (1) ethylene glycol was heated with methacrylic acid, trichlorethylene and hydroquinone disulphonic acid, and the water of reaction was distilled off with the trichlorethylene; the monoester obtained was heated with oxalic acid to give di-(methacrylyl glycol) oxalate, which in (2) was mixed with styrene, benzoyl peroxide and polymethyl methacrylate, the mixture being placed between sheets of glass fibre and the whole being then heated.  Examples (3), (5) and (6) are the same as example (1), except that the oxalic acid is replaced by phthalic, adipic and alphachloracrylic acids respectively, and example (4) repeats the process of example (2), using di-(methacrylyl glycol) phthalate.  Specification 423,790 is referred to.
Patent GB-386556-A (GB)
Title: Improvements in wheeled gun carriages
IPC: F41A23/32
Filed: 1932-07-01
Abstract: 386,556. Ordnance field-carriages. SCHNEIDER ET CIE, 42, Rue d'Anjou, Paris. July 1, 1932, No. 18685. Convention date, Sept. 7, 1931. [Class 92 (i).] Field carriages with divided trails are adapted for allround anti-aircraft fire from a fixed position by adjustably connecting the forward ends of the trail beams d with the fixed gun pedestal b so that the beams can occupy a raised position for travelling and firing on wheels, or a lowered position in which they do not interfere with all-round training or recoil during high-angle firing. Fig. 1 shows the invention applied to a carriage having a wheel axle which can rock on a longitudinal pivot c<2> in a bracket c<3> detachably mounted on the pedestal b. Each trail beam d can be spread on a pivot e carried by a bracket f which can turn about a pin b<2> on the pedestal to the full line position shown in Fig. 3. In this position, a forward leg h can be coupled to the beams by a projection h<1> and to the pedestal by bolts i. Each beam can turn within its spade portion g on a pivot g<1> in line with the axis of the pin b<2>. The forward ends of the trail beams may be made adjustable in arcuate guides on the pedestal or may be separately attached to the pedestal in the raised or lowered position. Where the beams are connected together for movement about a longitudinal pivot k, Fig. 11, they may be lowered together by turning them through 180 on this pivot, or by lowering the pivot itself in rectilinear or helical guides on the pedestal.
Patent GB-968242-A (GB)
Title: Improvements in or relating to tool holders
Inventor: OAKES VICTOR WILLIAM
IPC: B23B27/16
Filed: 1962-05-16
Abstract: 968,242. Tool-holders. EDGAR ALLEN & CO. Ltd. Feb. 6, 1963 [May 16, 1962], No. 18780/62. Heading B3B. The subject-matter of this Specification is the same as that described in Specification 968,241, but the claims are directed to the feature that the tool-holder has a separate seating. The bit projects slightly beyond the seating at the operative corner and edge of a triangular tip, or at the corner and both adjacent edges of a tip with four or five sides.