baber/WOPTO huggingface dataset:
Patent GB-1347586-A (GB)
Title: Centrifugal moulding
IPC: B29D19/00
Filed: 1972-03-16
Abstract: 1347586 Centrifugal casting of buttons S G HUDSON 16 March 1972 [16 March 1971] 12430/72 Heading B5A Apparatus for centrifugally casting buttons comprises a rotatable turntable around the periphery of which are pivoted mould supports, each supporting a button mould and a container mounted on each mould to feed material to the mould in use. As shown in Fig. 4, turntable 4 has radial arms 6 with support plates 7 mounted thereon. Mould supports 9 are pivoted at 8 to plates 7 and carry a mould 10 and material container 11. Mould 10 is made from rubber and comprises upper and lower parts 12, 13 connected by bar 18. Part 12 has a material reservoir 14 connected by channel 15 to hole 16 forming the shank in which the thread hole is formed by bar 18. Material container 11 is pivoted on bar 20 to support 9 and has an outlet 21 supplying material to reservoir 14 in use. If hole 21 is not used, a lug 25 is connected to a tipping bar 22 pivoted at 23 on plate 24 which is mounted on arm 6 to tip the container 11 when in use.
Patent GB-972285-A (GB)
Title: Improvements relating to dust-extraction devices for rotary tools
Inventor: HARVEY JOSEPH ERIC
IPC: A47L11/202
Filed: 1960-04-07
Abstract: 972,285. Power-operated brushes. HOLMAN BROS. Ltd. March 30, 1961 [April 7, 1960], No. 12432/60. Heading A4K. [Also in Divisions B3 and F4] A rotary wire abrading brush 10 of the cup type has its tufs 15 clamped within an annular channel 18 formed by an inturned flange 17 of a metal guard 16 which in turn is clamped by a nut 22 to a threaded end 21 of a hollow spindle 14 connected to the drive shaft 13 of a compressed air motor 11. The spindle 14 has apertures 33 in its wall and is surrounded by a stationary tubular shroud 26 having a suction outlet duct 30 branching therefrom and is clamped by a ring 28 to the motor casing 27 and is of such length as to terminate at 29 just short of the rear face of the annular brush 10. Dust-laden air is thus drawn from the space within the brush into the spindle 14 through the aperture 33 into the duct 30 which discharges into a filter (not shown). The brush tufs 15 are prevented from spreading under the action of centrifugal force by a steel band 20.
Patent GB-233152-A (GB)
Title: Improved device for carrying wireless valves and other goods of a fragile nature
IPC: B65D5/50
Filed: 1924-12-13
Abstract: 233,152. Astley, M. Wade-. Dec. 13, 1924. No Patent granted (Sealing fee not paid). Fittings, internal. - A carton for a wireless valve or like comprises a rectangular tubular carton 1 and a second tubular element 2 which is spaced away from the side walls of the carton 1 by flanges 3 and from the ends by tray-like elements 4, 7. The element 2 is lined with felt or like material.
Patent GB-197681-A (GB)
Title: Improvements in and relating to electric dynamos
IPC: H02P9/20
Filed: 1923-05-09
Abstract: 197,681. Soc. l'Electrotechnique. May 13, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Exciting.- The regulation of a generator is effected by means of a solenoid 6 arranged to vary the contact resistance of an auxiliary brush 3 in the circuit of the field coil 7. The solenoid may be in parallel or in series with the load or a compound winding may be employed.
Patent GB-1240042-A (GB)
Title: Improvements in or relating to the measuring of electrical resistance values and similar values
Inventor: WATTS JACK
IPC: G01R1/28
Filed: 1969-03-10
Abstract: 1,240,042. Measuring resistance with Kelvin bridge. WELWYN ELECTRIC Ltd. Feb.20, 1970 [March 10, 1969], No.12511/69. Heading G1U. A resistance measuring Kelvin double bridge Fig. 1 is characterized in that both the yoke resistors a, b, Fig. 1, i.e. the resistors across the shunt 1, and the ratio resistors A, B, are consituted by modified Kelvin-Varley potentiometers Fig. 5 in which each sub-dividing chain of resistors, such as RCH(2) is shunted RSH in such a way that the incremental resistors (10k#) in the sub-dividing chain are of the same value (10#) as those in the chain RCH(1) being subdivided. In this way even with as many as 7 stages in the Kelvin-Varley potentiometer, the contact resistances RC 1 , RC 2  can remain insignificant. As is usual with Kelvin double bridges, the ratios a: 3 and A: B are maintained equal, but in the preferred embodiment the ratio A: B is determined to 7 significant digits, whilst that of a: b is only determined to 4 significant digits, and providing a and b are both moderately high it can easily be shown that only a small error will result. Also in the preferred embodiment, a pulsed D.C. supply A, Fig. 7 is applied to the bridge, the output of the bridge being sampled at a similar frequency, 3 in order to reduce noise. The Kelvin-Varley potentiometers are switched by mercury-wetted relay contacts, and the bridge may be balanced either automatically, using binarycoded decimal transistor control arrangements (no details given) or manually. The result can be displayed or stored, and a balancing sequence may be stopped automatically whenever the signal-to-noise ratio of the bridge output becomes too low, thus preventing an observer being given a false impression of high accuracy.
Patent GB-294313-A (GB)
Title: Improvements in milk coolers
IPC: A01J9/04
Filed: 1927-05-13
Abstract: 294,313. Giles, R. A. Boucher-, and Hollis, J. M. May 13, 1927. Cooling milk.-A milk cooler comprises spaced corrugated plates between and over which the cooling-water and the milk respectively flow, the plates being secured by water inlet and outlet pipes 2, 3 and projections 2a, 3a on the radiator to inverted U-shaped frames 4 which facilitates the cleaning of the corrugations in the plates. Milk distributing and collectity tanks 10, 15 arc detachably secured to the frames which also carry suspension screws 14.
Patent GB-112112-A (GB)
Title: Improvements in and relating to Faucets or Valves.
Inventor: REILEY MATTHEW SIMPSON
IPC: F16K1/48
Filed: 1917-09-08
Abstract: 112,112. Reiley, M. S. Sept. 8, 1917. Closure members; spindles. - A screwactuated lift valve, of the type having a conical seat and substantially spherical head of compressible material rotatably secured to the valve spindle, has the spindle formed with a reduced portion 26 provided with a diskshaped head 22 adapted to be forced into a correspondingly shaped recess in the valve member 25. The head may be integral with the reduced portion or it may be rotatably secured to the spindle and a washer may be inserted in the valve member beneath the head. As shown, the upper part of the valve member is flattened to. bear against a washer 24, but the valve may be spherical and a concave washer employed.
Patent GB-594337-A (GB)
Title: Improvements in and relating to folding tables and the like
Filed: 1945-05-24
Abstract: 594,337. Elastic ferrules and tips. CHARLESWORTH, F.. J. May 24, 1945, No. 12966. [Class 134] [Also in Group XIV] The legs 3a of a folding table may be of angle-section and be fitted each with a dome 6 which is part circular in plan.
Patent GB-891150-A (GB)
Title: Coating metal surfaces
Inventor: SCHUSTER LUDWIG K
IPC: C23C22/03
Filed: 1958-04-24
Abstract: A phosphate coating is formed on a metal surface by contacting the surface with a composition in which 1-15% by weight of water and 2,5-25% by weight of phosphoric or phosphorus acid is dissolved in a hydrophilic organic compound having 12-30 carbon atoms in a connected group, the composition being a stable single phase liquid at a temperature at least as low as 80 DEG C.  The hydrophilic compound may be a non-volatile metal lubricant: alternatively, a non-hydrophilic metal lubricant may be included in the composition. Suitable hydrophilic compounds are amides and amines.  The composition may also contain supplementary lubricants such as mineral and fatty oils; drying or semi-drying oils; and a coupling agent such as an alkylene glycol, an alkylene glycol ether and/or a fatty acid. Metals which may be coated are iron, steel, aluminium and zinc.  The composition may be applied by immersion, flooding, applicator rolls, brushing or spraying, and the phosphate coating is stated to facilitate the cold-working of the metal.
Patent GB-126995-A (GB)
Title: Improvements in Aeroplanes.
IPC: B64C39/00
Filed: 1916-09-14
Abstract: 126,995. Soc. Anon. des Etablissements Nieuport. Jan. 10, 1916, [Convention date]. Aerial machines without aerostats; planes, arrangement of.-An aeroplane is supported by three very narrow planes 1, 2, 3 built up on single spars and connected together by triangular frames 4, 5, 6, one of the planes, preferably the plane 2, being set to the rear of the other two. The plane 3, which may be vertically above the plane 1 or in advance of it, extends over the fuselage, to which it is connected by a pillar member 8.
Patent GB-495171-A (GB)
Title: Improvements in deaf-aids for use in cinema auditoriums or the like
IPC: H04R27/02
Filed: 1938-05-02
Abstract: 495,171. Sets for deaf persons; inductive signalling. BALBI, C. M. R. May 2, 1938, No. 13096. [Class 40 (iv)] [Also in Group XL] An electrical deaf-aid set, for use in kinema auditoriums and the like, comprises a pick-up coil in addition to a microphone and is provided with a change-over switch so that the output of the pick-up coil or of the microphone may be fed to the reproducer. As shown, the set comprises a casing 1 containing a thermionic amplifier, a microphone 2 disposed behind a grille 3 and a pick-up coil 7 wound around the lower part of the casing. Currents are induced in the coil 7 by a magnetic field produced by wires arranged for example along the backs of seats or around the auditorium. The receiver 4 is connected by a plug 5 and the switch is located in a recess in the bottom of the casing. In a modification the switch has a third operative position so that the outputs of the coil and of the microphone can be fed simultaneously to the reproducer. The coil may be carried on a separate former attached to the casing which incorporates a rectifying device if the set is to be used for the reception of modulated high-frequencies.
Patent GB-855639-A (GB)
Title: Device for controlling a transductor or other electric amplifier
IPC: H03F9/04
Filed: 1959-04-17
Abstract: 855,639. Magnetic amplifiers. ALLMANNA SVENSKA ELEKTRISKA A.B. April 17, 1959 [April 18, 1958], No. 13120/59. Class 40 (9). The response time of a magnetic amplifier is reduced by passing a large current through the control winding during the transitional period when the current is increasing. The amplifier 1, Fig. 1, may be of the auto-self-excited parallel type, Fig. 2 (not shown), and has its control winding 5 connected in a closed circuit which comprises a variable D.C. control voltage and a D.C. auxiliary voltage of substantially higher value, these voltages being provided respectively by A.C. sources 13, 17 in association with rectifiers 12, 16. Both the D.C. voltages act in the same direction in the closed circuit, and during transient conditions set up a large circulating current which is maintained constant by a high resistance 15. The points 18, 19 on the closed circuit are connected by a resistor 20 and a rectifier 21, a D.C. voltage being developed across the resistor by current through a rectifier 2 and the amplifier output power windings. Under steady operating conditions, the auxiliary voltage supplies current to both the control winding and resistor 20. If the control voltage is raised, however, by adjustment of potentiometer 14, this voltage cuts off rectifier 21 and the whole of the constant current supplied from the auxiliary voltage passes through the control winding. A rapid increase in current through the output power winding then takes place until the voltage across resistor 20 builds up to such a value as to cause the rectifier 21 to conduct. The constant current then passes through both the control winding and resistor 20 once more and a state of equilibrium is reached. The effect of current flow through the control winding when the control voltage is zero may be neutralized by a counteracting winding 22, Fig. 3, energized by the auxiliary voltage. This arrangement also includes the features of output alternating current applied directly to the resistor 20, the provision of a full-wave rectifier between points 18 and 19, a tuned circuit 27 connected to resistor 20 to eliminate the third harmonic and smoothing capacitors 24, 25, 30 across rectifiers 12, 16, 26. Harmonic voltages induced in the control winding are suppressed by a rectifier 31. An amplifier is also described, Fig. 4, in which a further control winding 32 connected in series with the resistor 20 provides rapid transient response when the control voltage is reduced.
Patent GB-131296-A (GB)
IPC: F21L4/00
Abstract: 131,296. Nurnberger Metall und Lackierwaarenfabrik vorm. Geb. Bing Akt.-Ges. Oct. 10, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Battery lamps.-The reflector 5 which carries the bulb 8 slides in guides 10 on the inside of the casing as shown in plan in Fig. 1, the lens 3 being permanently fixed to the exterior of the casing. Access to the bulb is obtained by removing the top of the casing and withdrawing the reflector.
Patent GB-1195667-A (GB)
Title: Improvements in or relating to Packaging and Preserving Vegetables
Inventor: BALLARIN CLAUDE
IPC: A23L19/12
Filed: 1969-03-13
Abstract: 1,195,667. Preserving vegetables. C. BALLARIN. 13 March, 1969 [29 March, 1968], No. 13239/69. Heading A2D. Vegetables are peeled, soaked in a salt solution (concentration 5 gm/litres), drained and placed in a bag which is sealed under vacuum, this bag then being cooked and sterilized for 15 to 45 minutes. The salt solution may additionally contain sodium bisulphite. The process is particularly applicable to potatoes and carrots.
Patent GB-1218361-A (GB)
Title: Production of fibre-forming and film-forming compositions
Inventor: VAUGHAN MERVYN FRANCIS
IPC: D01F6/74
Filed: 1967-03-21
Abstract: 1,218,361. Polyamide-acid solution. NATIONAL RESEARCH DEVELOPMENT CORP. 15 March, 1968 [21 March, 1967], No. 13245/67. Heading C3R. Solvents for polyamide-acids comprise an aliphatic ether containing an hydroxyl group and optionally up to 15 wt. per cent of water. Specified ethers are 2-methoxyethanol, 2- ethoxyethanol and 3-methoxypropanol. In examples 4,4<SP>1</SP>-diaminodiphenyl ether in solution in 2-methoxyethanol (with and without 7% water) is poured on to pyromellitic anhydride to give a solution used to form films or filaments which are then converted to polyimide.
Patent GB-543400-A (GB)
Title: Improvements in or relating to electron discharge devices incorporating high-frequency resonators
IPC: H01J25/08
Filed: 1940-08-23
Abstract: 543,400. Electron oscillators. STANDARD TELEPHONES & CABLES, Ltd., and SMYTH, C. N. Aug. 23, 1940, No. 13396. [Classes 39 (i) and 40 (iii)] A quarter wave co-axial resonator consisting of the tube A and inner conductor B is wholly enclosed in an envelope E with a returned end D ; the tube A is produced beyond the end of the conductor and projects into the returned end which receives-outside the tube-an adjustable plate F for varying the capacity across the end of the resonator. The plate is carried by a screw ; a rod may replace the plate. The resonator is used with a velocity modulated beam such as described in Specification 537,490 ; a cathode and collector electrode not shown constrain the beam to flow through gaps between the fins L.
Patent GB-189719-A (GB)
Title: Improvements in or relating to pistons
IPC: F02F3/04
Filed: 1922-05-12
Abstract: 189,719. Napier & Son, Ltd., D., and Tryon, H. C. May 12, 1922. Pistons, balancing laterally.-In a piston A for internal-combustion engines made of aluminium or aluminium alloy, of the kind in which the head and skirt are formed integral connected by a truncated conical portion, the skirt B is slit longitudinally and provided at the junction between the connecting member and the skirt with an undivided internal ring E of iron, steel, or other metal having a coefficient of expansion substantially the same as that of the metal of the cylinder. The conical member is formed with bosses B<1> for the gudgeon and the skirt may be provided with a second ring F similar to the ring E.
Patent GB-138005-A (GB)
Title: An improved system of scaffolding
IPC: E04G7/02
Filed: 1919-05-28
Abstract: 138,005. McMillan, J. May 28, 1919. Scaffolding; ironwork, constructional.-A scaffolding consists of any desired number of sections, each section comprising steel tubes, iron or steel fittings, and wire stays with means of securing same to the fittings. Each section consists of two parallel series of tubular frames 9, 20, 12, 17 jointed by tubes at each of the four corners and braced by wire stays 22. Fig. 2 shows two sections, one superimposed on the other. The scaffolding is supported by plates 24 and screws 23. The fittings 2, Fig. 5, are provided with three socket arms 25, 26, 27 to support the horizontal tubes, one of which 14 is shown. These tubes are provided with flanges 30 which take into grooves 32 and are provided with slots 31 to accommodate the shackle 21, which is also housed in a hook-shaped part 28 in the socket arm. The vertical tubes 10 rest on a ledge 37 and are provided with pins which take into the bayonet slots 38, 39. Intermediate platforms are secured, if desired, by means of rods and clamps attached to the vertical and horizontal rods by means of the holes shown therein. Handrails of tubular form may be secured to the tubes by cleats.
Patent GB-405974-A (GB)
Title: Improvements in the automatic regulation of the exciting currents of dynamo-electricmachines
IPC: H02P9/26
Filed: 1932-05-10
Abstract: 405,974. Automatic regulation. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. May 10, 1932, No. 13469. Convention date, Aug. 8, 1931. [Class 38 (iv).] In an arrangement for the automatic voltage regulation of an A.C. generator 1 the excitation winding 3 is supplied from the main or an auxiliary line through a grid controlled arc discharge rectifier whose grid potential is regulated by the voltage of the generator so that, during regulation, the displacement of the instant of ignition of the discharge tubes is momentarily allowed to exceed that measure necessary for the continuous delivery of the new value of excitation current for maintaining the voltage of the machine constant. In one arrangement a Ferraris motor 15 energized from the voltage of the alternator acts on a spring controlled carbon pile resistance 17 in the grid circuit of the rectifier 4. The grids 7 are supplied through a transformer 10 with voltage 120‹ out of phase with their anodecathode voltage and a variable D.C. bias is provided by a battery 20 in a circuit comprising rheostat 17, a resistance 18 and an inductance 19. Changes in the voltage of the line 2 vary the pressure on the rheostat 17 and, due to the lag of current through the inductance 19 cause a momentary over regulation of the rectifier 4. This overcomes the magnetic inertia of the machine and prevents hunting. A further control 21 responsive to excitation current may act on the Ferraris movement 15. The device may be arranged so that on short circuit the control on the rectifier 4 causes it to work as a inverter to feed the inductive energy of the winding 3 into the line 2 and provide for rapid de-magnetization. In a further modification the device 14, 17, 19, 20, 21 is replaced by an uncontrolled rectifier supplied from the alternator voltage which feeds the grid circuit of an amplifier valve through a condenser and resistance in parallel, and a glow discharge tube and batteries, the output current of the amplifier valve providing, through a resistance, the control bias voltage on the grids or grid sheaths of the rectifier. In this case the condenser and resistance replace the inductance 19 transient voltage variations effecting a momentarily exaggerated control of the rectifier through the amplifier valve. An inductance and resistance connecting the neutral points of the anode and grid transformers provides a lagged application of the excitation voltage to the grid circuit so as to provide a new inoperative position for the regulating apparatus. The device may be used in combination with the Tirrill method of control. The Specification as open to inspection under Sect. 91 stated that the device is applicable to speed regulation of motors. This subjectmatter does not appear in the Specification as accepted.
Patent GB-135083-A (GB)
IPC: F42C1/02
Abstract: 135,083. Davison, G. C. Feb. 21, 1919. Projectiles; projectile fuses. - Relates to percussion fuses of the kind in which a. delayed action on impact is produced by the ignition of a charge of gunpowder enclosed in a chamber within the shell, the detonation of the main charge being effected when the chamber bursts. According to the invention, a strong chamber or envelope E, which is, secured to the base of the fuse and communicates by a passage with the primer d, is only partly filled with gunpowder F. The primer is fired on impact by a pellet C which is locked by centrifugally released devices. A charge of fulminate may be added to transfer the explosion from the gunpowder F to the main bursting charge of the projectile A..
Patent GB-1033535-A (GB)
IPC: G09B1/06
Filed: 1963-04-04
Abstract: 1,033,535. Labels. C. HOLLMAN. April 4, 1963 [April 5, 1962], No. 13513/63. Heading B8F. [Also in Division G5] A card 10 has windows or apertures 12-16 adapted to receive interchangeable panels 20-23, which bear letters, words and the like to complete a display legend of which parts 11, 17 are printed on the card, the card and panels having adhesive layers on the front or back. The card may be transparent plastics, printed to leave windows 12-16 in an otherwise opaque area, or may be opaque paper or metal foil with apertures 12-16 therethrough. The adhesive layers on the card and panels are protected by a backing 24, which is removed prior to sticking card 10 to a window or windscreen for display and may then be folded to form a pocket for storing panels not in use.
Patent GB-135624-A (GB)
IPC: F01L33/02
Abstract: 135,624. Mazijk, N. van. Dec. 2, 1918. Hand, foot, and like gear.-In a steam engine wherein the distribution is effected by a rotary valve in conjunction with rotating expansion values which are adjusted relative to the main value, the rotary valve is driven by tooth-gearing through rods 10, 50 which are connected bv a claw clutch held in action by a spring. Reversal is effected by disengaging the parts 51, 52 of the clutch by means of a lever 40, which also controls the action of the expansion valves, and rotating the rods 10, 50 relatively through 180 degrees. The lever 40 is normally pivoted at 41, but on actuating a catch 56 the lever is pivoted to a shaft 57 allowing the clutch to be opened.
Patent GB-964119-A (GB)
Title: Mechanism for effecting selective operation of a number of micro-switches
IPC: G05G9/047
Filed: 1962-04-10
Abstract: 964,119. Retractive switches. M. C. HARLEY. March 20, 1963 [April 10, 1962], No. 13724/62. Heading H2B. A mechanism for manually operating individually a number of microswitches comprises a spindle i and disc j so that when the spindle i is moved in one plane switches a and b are operated by the spindle, and when it is moved in a perpendicular plane switches c and d are operated by the disc j. The spindle is held vertically by spring k acting against a plate h. A plate f has a cruciform opening so that the spindle may only be tilted in one plane at a time.