baber/WOPTO huggingface dataset:
Patent GB-811445-A (GB)
Title: Improvements in or relating to electric heating apparatus
IPC: H02H5/04
Filed: 1955-09-19
Abstract: 811,445. Automatic temperature control systems. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Sept. 19, 1955 [Sept. 28, 1954], No. 26691/55. Class 38 (4). In an automatic temperature control system for an electric heating element, reverse current through rectifying means, having a negative temperature coefficient, associated with or forming part of the element and being coextensive therewith, controls the energization of the element. Temperature changes of a blanket or clothing incorporating a heater 16, Fig. 2, supplied from an A.C. source 17, 18, are detected by change in the back resistance of rectifier material, e.g. selenium, copper oxide, germanium or silicon 14 (see also Fig. 1), between strip conductors 13, 13a wound on a flexible core 10 of jute or flax to form a cable, having a plastic covering 12, which is also incorporated in the blanket or clothing. When the temperature rises to a predetermined value, rectifier 14 passes sufficient reverse current through a rectifier 24 and a bimetallic element 27 to open a switch 19 and disconnect heater 16 until the temperature falls. In a modification, Fig. 3, conductors 13, 13a also constitute the heater, current to which is normally supplied through rectifiers 40 and 14. When the temperature rises to a predetermined value, however, reverse current through rectifier 14 provides sufficient energization of a heater 43 through a rectifier 42, to open a thermallyoperated switch 41 to interrupt the heating circuit. Alternative forms of temperaturesensitive rectifier cable, e.g. in which conductors 13, 13a are concentric and may surround a central core, are described.
Patent GB-749024-A (GB)
Title: Improvements in or relating to deflection systems for cathode ray tubes
IPC: H01J29/76
Filed: 1953-09-29
Abstract: 749,024. Cathode-ray tubes. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Sept. 29, 1953 [Sept. 29,1952], No. 26727/53. Class 39 (1). A magnetic deflecting system produces a spiral distortion of the scanned field which can be used to correct for a spiral distortion already existing elsewhere in the tube. The distortion is produced by arranging that (a) the direction of the mean magnetic field rotates progressively about the beam axis from the entry to the exit of the system, so that the main plane of deflection of the exit beam is not perpendicular to the mean magnetic field at the exit; and (b) that the exit field is non-uniform away from the axis so that the forces perpendicular to the main plane of deflection generated by a condition (a) are non-uniform to give the spiral distortion. In one form the ends 12, 13 and 14, 15, Fig. 5, of the coils are twisted with respect to one another as shown to give the screw field; the windings may be sunk in skewed slots in a magnetic armature and distributed to give a desired law. In another form a toroidal magnetic core is wound with skewed coils, Fig. 7 (not shown); and these may be further skewed radially so that the inner turns of the coils are advanced circumferentially with respect to the outer ones, Fig. 8 (not shown). Applications are described to (1) an image iconoscope in which spiral distortion is produced in the image section by a non-uniform focusing coil; (2) a television receiver tube where the focusing and deflecting systems interfere to give spiral distortion.
Patent GB-696062-A (GB)
Title: Improvements in or relating to control apparatus suitable for internal combustion engines
Inventor: CARRINGTON JAMES EDWARD
IPC: F01L13/02
Filed: 1949-10-19
Abstract: 696,062. Fluid-pressure servomotor-control systems. BRUSH ELECTRICAL ENGINEERING CO., Ltd. Oct. 19, 1950 [Oct. 19, 1949], No. 26784/49. Class 135 Control apparatus, e.g., for the throttle of an internal-combustion engine, comprises a piston 5, Fig. 1, movable in a cylinder 4 and connected to move a shaft 27, controlling the governor loading or the throttle, by a link and lever 26, and movable by a spring 14 in one direction and oil pressure in the other under the control of electromagneticallyoperated valves 6, 11 actuated by switches 12, 13 respectively. The valve 6 controls communication between an oil tank 2 and a pipe 3 leading to the cylinder 4, and the valve 11 controls the application of compressed air to. or, its exhaust from, the space above the oil in the tank. The switches are moved relative to an L-shaped cam plate 23 by levers and links 17 movable by a handle 18 remotely located to open the oil valve and also to cause the air valve to open to exhaust to effect movement of the piston by the spring and to open to pressure to effect movement of the piston against the spring. The piston carries with it by a link 25 a guided plate supporting the cam plate 23 which follows-up the switches to stop the piston when movement of the handle 18 stops. The spring may be replaced by compressed air applied under the control of an electromagnetically-operated valve controlled by a further switch. The switches 12, 13 may be micro-switches or spring contact arms. In a modification, the cam-plate 23, Fig. 4, is arcuate and fixed to a block 23<SP>1</SP> rotatable on the shaft 27 by an arm 31. Contact arms 12, 13 and a supply contact 29 are carried by a projection 30 from the lever 26, whereby after the arm 31 is turned to cause movement of the piston 5, the arms 12, 13 follow-up the plate 23 to stop the piston. In another arrangement, the governor shaft 35, Fig. 5 is turned by a vane 34 movable in a casing 32. The micro-switches 12, 13 are carried on block 36 rotatable on the shaft by an arm 31<SP>1</SP>. The cam plate 23 is arcuate and fixed to a block on the shaft, whereby after the arm 31<SP>1</SP> is turned to cause movement of the vane, the plate 23 follows-up the switches to stop the vane. The control apparatus may be used in a dieselelectric power unit in which the engine governor operates the switches and the piston or vane controls a variable resistance in the generator field. Thus when the speed falls due to overload of the generator, the governor increases the fuel supply to the engine and also causes an increase of the resistance to weaken the' field to bring the speed to normal, and vice versa.
Patent GB-518988-A (GB)
Title: Improvement relating to punch bags
IPC: A63B69/22
Filed: 1938-09-14
Abstract: 518,988. Punch bags. BLOOM, J. A. Sept. 14, 1938, No. 26796. [Class 132 (i)] A punch bag comprises a bolster suspended by short links 5 from a heavy ring 4 which swings by chains 7 from a ceiling hook 9. The bolster is formed of an inflated bladder 1 and a sheath 2 with an interposed resilient cushion 3.
Patent GB-271724-A (GB)
Title: Improvements in starting and stopping means for internal combustion engines
IPC: F01L13/00
Filed: 1926-10-26
Abstract: 271,724. Reddie, L. N., (Soc. Anon. Diremo). Oct. 26, 1926. Cam-and-lever actuated pumps; stroke, varying. - Starting and stopping means for Diesel and like engines comprises two levers 5, U actuated from a single cam 1 and acting through arms 7, 13 pivoted respectively to an extension of the fuel pump plunger 3 and the stem of a starting valve 15 controlling the supply of compressed air to the engine cylinders. The levers 5, 11 are pivoted respectively at 4, 11, the free end of the lever 11 resting on that of the lever 4. The arm 7 is controlled by the engine governor for varying the stroke of the plunger. The arm 13 is manually controlled by a lever 17 which is also connected to a slotted rod 18 engaging a pin 19 on the lever 5. In the position F, F<1> of the lever 17 and the arm 13, the fuel-pump lever 5 is lifted clear of the cam 1 by the rod 18, so that the engine is stopped.
Patent GB-602387-A (GB)
Title: Improvements in or connected with furnaces embodying radiant tubular heating elements
IPC: F23D99/00
Filed: 1945-10-13
Abstract: 602,387. Furnaces. LAMB, A. F. Oct. 13, 1945, No. 26840. [Class 51(ii)] In a furnace wherein the charge is covered by a container b, tubular heatradiating members c are positioned between the furnace walls and the container, and are arranged in relation to the outlet flue a2 that a reverse flow of combustion products is induced in proximity to and around the tubes c. The tubes c are fired by gas and air pressure burners c<2>.
Patent GB-649217-A (GB)
Title: Improvements in practice golf ball
IPC: A63B37/00
Filed: 1948-10-18
Abstract: A practice golf ball having substantially the dimensions, shape and appearance of a standard golf ball is made of closed-cell expanded plasticized polyvinyl chloride.  The ball may be made by forming a paste of finely-divided polyvinyl chloride and a plasticizer therefor, mixing the plasticized resin with a chemical blowing agent capable of generating a gas on the application of heat, heating the mixture in an undersized mould to effect gelation and generation of gas, cooling and removing the miniature moulded ball, expanding it in hot water or an air oven to approximate golf ball size, and dimpling the expanded ball by heating it in a golf ball mould.  The dimpling may be accomplished in the miniature mould if desired.  The blowing agent may be a ,a 1-azobisisobutyronitrile, diazoaminobenzene, 1,31-bis-(o-xenyl)-triazene or 1,3-bis-(p-xenyl)-triazene, and the plasticizer may be dioctyl phthalate, tricresyl phosphate, dibutyl phthalate, or dicapryl phthalate.  A small quantity of calcium stearate may be incorporated as stabilizer.  Fillers and pigments, preferably white in colour, may be incorporated. Specification 500,298 is referred to.ALSO:A practice golf ball of closed-cell expanded plasticized polyvinyl chloride is made by forming a paste of finely-divided polyvinyl chloride and a plasticizer therefor, mixing the plasticized resin with a chemical blowing agent capable of generating a gas on the application of heat, heating the mixture in an undersized mould to effect gelation and generation of gas, this heating being preferably carried out at a temperature of from 250 DEG to 350 DEG  F. for from 6 to 15 minutes, cooling and removing the miniature moulded ball, expanding it in hot water or an air oven to approximate golf ball size, and dimpling the expanded ball by heating it in a golf ball mould.  The dimpling may be accomplished in the miniature mould.  In an example the undersized mould has a cavity 3/4 inch in diameter and the filled and closed mould is heated for eight minutes at 330 DEG  F. and a mould-closing pressure of 3600 p.s.i. The mould is cooled for seven minutes and the ball removed, being about 7/8 inch in diameter.  The ball is heated in water at 85 DEG C. for 15 minutes and then dimpled in a golf ball mould by heating it for 12 minutes at 230 DEG  F. Specification 500,298, [Group IV], is referred to.
Patent GB-1341338-A (GB)
Title: Anti-skid braking systems
IPC: B60T8/38
Filed: 1972-06-09
Abstract: 1341338 Antiskid braking systems FIAT  SpA 9 June 1972 [14 June 1971] 27037/72 Heading F2F An hydraulic modulator for an antiskid braking system has an inlet 21 for connection to a source of fluid under pressure such as a master cylinder 10, an outlet 101 for connection to a wheel brake motor, a discharge orifice 32 for connection to a fluid reservoir 11. A piston 39 in a cylinder 28 and biased to a first position by a spring 145 and movable to a second position when the braking pressure overcomes the spring, a chamber 27 communicating with the discharge orifice, a valve member 40 movable by a spring 41 to close communication between the chamber and orifice but held open by the piston in its first position a first valve 24 controlled by a solenoid connected to an antiskid control-unit 103 and normally allowing communication between the inlet 21, outlet 101 and cylinder 28 and operable to interrupt the communications and establish communication between outlet 101 and the chamber 27 upon energization of the solenoid, an absorber arrangement 34a in communication with the chamber and in throttled communication with the orifice 32 and a second solenoid valve 45 normally allowing communication between the chamber and discharge orifice and operable to prevent such communication upon operation of solenoid.
Patent GB-1276208-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B19/04
Filed: 1970-06-05
Abstract: 1276208 Cameras E KURBI [trading as KURBI & NIGGELOH] 5 June 1970 [6 June 1969] 27155/70 Heading G2A The housing of a camera comprises two parts 1 and 5 which can slide apart, the part 1 containing the lens 2 and shutter, the transport-operating wheel (3) Fig.3 (not shown), and the shutter release lever 4, while the other part 5 contains the viewfinder 6. When parts 1 and 5 are pulled apart into the Fig.1 position, the lens and view-finder are exposed. When the parts are pushed together Fig.4 (not shown), both lens and view-finder are covered. A flash-bulb socket 8 is urged upwards by a weak spring 7. An exposure setting lever 12 can be moved right or left to one of two settings. When set as shown, at 1/30 sec, an extension 12a of the lever locks under the socket 8 to hold it firmly so that a flash-bulb can be inserted. In this position the socket 8 also prevents the parts 1 and 5 from being closed together. In the alternative lever setting of 1/90 sec the lever extension no longer locks under the socket. Thus if an attempt is made to insert a flash-bulb, the socket moves downwards against spring 7. The shutter release 4 has an extension lug 15 which acts as a locking latch when parts 1 and 5 are pushed together into the "closed" position.
Patent GB-886143-A (GB)
Title: Improvements in and relating to pressure vaporiser burners fed with liquid fuel
IPC: F23C99/00
Filed: 1960-08-05
Abstract: 886,143. Vapour burners. WEBASTOWERK G.m.b.H. Aug. 5, 1960 [Aug. 20 1959], No. 27233/60. Addition to 850,725. Drawings to Specification. Class 75(1) The flow of combustion gases through the central passage of the annular vaporizing chamber of the burner of the parent Specification is controlled by an adjustable obstruction disposed downstream of the vaporizing chamber. The obstruction may consist of a convex disc at the end of the central passage or a shield obstructing the end of the annular passage between the annular vaporizer and the burner casing. The convex disc is mounted on arms connected by bayonet unions in either of two positions to the burner casing.
Patent GB-815254-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F17/00
Filed: 1956-09-05
Abstract: 815,254. Washing machines. KOVOTECHNA PRAHA, NARODNI PODNIK, and HODEK, V. Sept. 5, 1956, No. 27237/56. Class 138 (2). A washing machine comprises a horizontal container 6 of substantially toroidal shape, a pump unit near the bottom of the container arranged coaxially therewith, means for directing a stream of washing liquid from the pump unit in a substantially radial direction near the bottom of the container, and an inlet for the pump unit near the centre of the container and above the level at which the washing liquid enters the container. The pump unit comprises a rotor 1 driven by an electric motor 3, and a stator 4 provided with fins 5 which impart a slight tangential component to the streams of washing liquid. The pump inlet comprises a perforated member 7 which is removable as a unit together with the upper parts of the stator 4 for cleaning purposes. The upper part of the container 6 may also be removable. The rotor 1 may be provided with a thrust bearing and coupling 11 adapted to receive a shaft 12 carrying a spin drying drum 10. The shaft 12 passes through a bearing 8 supported by an elastic corrugated cylinder 9. In a modification (not shown) the container 6 is perforated and provided with separate driving means. The pump outlets are preferably at a height above the bottom of the container 6 equal to approximately 2¢ times the vertical dimension of the stream of liquid.
Patent GB-263974-A (GB)
Title: Improvements in hinges or brackets for tipping bodies on motor or other vehicles
IPC: B60P1/28
Filed: 1925-10-30
Abstract: 263,974. Jennings, J. H. Oct. 30, 1925. Tipping - wagons, of the kind in which the body when tipping passes from one pivot to another, are provided with a member B on the body coacting with a member C on the end of the chassis, the members being provided with two pivots E, F and J. K, with intermediate teeth H<1> - - H<4> and notches G<1> - - G<4> which are disposed radially. Flat sur. faces L<1>,L<2> serve as a stop to prevent over-tipping. The members B, C enable a relatively long chassis to be employed.
Patent GB-305278-A (GB)
Title: Improvements in lock nuts
IPC: F16B39/28
Filed: 1927-10-14
Abstract: 305,278. Hawthorn, H. Oct. 14, 1927. Locking nuts. -A lock nut consisting of two inseparable portions interconnected by axial stem b on one portion a which engages and fits in an undercut recess d in the other portion c is designed so that the mutually engaging profiles of the stem and the recess are substantially globular. In assembling the portion e is formed with a taper which is expanded into position and excess of metal is removed either before or during the tapping operation. Preferably the major part of the thread is located in the portion a.
Patent GB-890197-A (GB)
Title: Method and apparatus for descaling annealed workpieces
IPC: C23G3/00
Filed: 1960-08-05
Abstract: 890,197. Cleaning workpieces. FAHR, O. Aug. 5, 1960 [Aug. 21, 1959], No. 27311/60. Class 99(2). [Also in Group XXIX] Apparatus for descaling an annealed workpiece 1 spaced by points 2<SP>1</SP> from a stationary support 2, comprises a nozzle ring 4 which emits converging water jets 3 when a plunger 6 is forced downwardly into a stationary water tank 5 supplied with water on the upstroke through an inlet 5<SP>1</SP>. The ring 4 is suspended from the plunger by rods 7 attached to a beam 8 and moves with it, and is fed with the water from the tank through passages 9, 10 and 11. On the downward stroke the ring embraces the workpiece and descales its entire peripheral surface, the underside being treated by deflecting the water jets from the top of the support 2.
Patent GB-1039015-A (GB)
Title: Improved skirting trunking for electrical wiring
Inventor: HOMES ARTHUR SYDNEY
IPC: E04F19/04
Filed: 1964-07-02
Abstract: 1,039,015. Skirting boards &c. DAVIS SHEET METAL ENGINEERING CO. Ltd. May 28, 1965 [July 2, 1964], No. 27315/64. Heading E1V. For securing removable covers 8 and/or cover strips 11 to skirting 1 (which also constitutes trunking for electric wiring), straps 10 readily engageable with the trunking are first positioned so as to present a screwthreaded bore in an appropriate location to receive a screw 9 passed through an aperture in the subsequently applied cover 8 or cover strip 11. The strap 10 has ends bent to lie parallel respectively with an upper flange 4 of the trunking and with an edge flange 7 of a shelf 6 within the trunking, the strap being dimensioned across its diagonal so that it can be introduced into a position with the ends engaging the flanges 4 and 7 by a turning movement.
Patent GB-783932-A (GB)
Title: Improvements relating to boxes
Inventor: CASTLE JOHN
IPC: B65D5/00
Filed: 1955-09-26
Abstract: 783,932. Cartons. BOWATER-EBURITE Ltd., [formerly EBURITE CORRUGATED CONTAINERS, Ltd.]. May 15, 1956 [Sept. 26, 1955], No. 27350/55. Class 18. A tray-form carton with doubled side walls has tongues 7 projecting above the walls and slots 8 in the base, so that identical cartons may be stacked with the tongues of one entering the slots of another placed above it.
Patent GB-1448300-A (GB)
Title: Digital signal generators
IPC: H03B19/00
Filed: 1974-06-20
Abstract: 1448300 Frequency synthesizers WESTERN ELECTRIC CO Inc 20 June 1974 [25 June 1973] 27352/74 Heading H3F A digital signal generator comprises at least one controllable digital signal source for selectively generating pulse signals at each of a plurality of frequencies which are converted by a low pass filter into sine waves, in which the filter has a break point at a frequency lower than the highest frequency to be generated, means being provided for adjusting the amplitudes of the individual rectangular waveforms to a level depending on the attenuation characteristic of the filter so that the amplitude of the sine wave from it is constant for all generated signals. In a multifrequency generator, clock pulses from clock pulse generator 101, Fig. 1, are fed to the inputs of a number of variable ratio dividing units 102-1 to 102-N, the outputs from which are combined at summing point 115, forming the input to low-pass filter unit 120 which has a cut-off frequency below the lowest generated frequency, and which feeds output terminal 125 with a combination of selected sine-wave signals. Each dividing unit, e.g. 120-1, comprises a programmable digital divider 104, the division ratio of which is determined by a control signal on one of the control lines 102-1A to 102-1M. The output from divider 104 is at four times the desired frequency, a four times division together with conversion to a square wave being performed by digital shaping circuit 106: this comprises two interconnected J-K flip-flops 201, 202, Fig. 2, controlled by logic circuit 203 operated by the control signals on lines 102-1A, &c. The output from the digital shaping circuit 106, Fig. 1, is applied to one input of each of a number of "tri-state" logic gates 108-1 to 108-M each of which receives a second input from the corresponding control line 102-1A to 102-1M. These gates are such that with an input terminal 2 the output is open, with input on terminal 1 only the output is zero, and with input on neither terminal the output is "1". Resistors 109-1 to 109-M have values such that after filtering all outputs are equal, the gates being such that mutual shunting does not occur. The filter network 120 commences with a lossy integrator stage 121 in which the rectangular waveforms are converted to triangular waves, followed by a third order low-pass filter 122. The digital shaping circuit 106 and gates 108-1 to 108-M are so arranged that the rectangular output wave commences with an initial pulse of half width, which minimizes transient signal components in the output from the filter. Transient components are likewise reduced by a D.C. bias from source 116 which is applied to summing terminal 115 and biases the waveforms so as to be symmetrical about zero.
Patent GB-603360-A (GB)
Title: Improvements relating to lubricant greases
Filed: 1945-10-18
Abstract: A lithium stearate grease is prepared from a mixture of oils comprising a medium to light mineral oil, a superheated steam cylinder oil, a saturated steam cylinder oil and castor oil, and also contains glycol laurate, butyl cellosolve, pyrrol, and lead, magnesium and aluminium stearates, the ingredients all being in specified proportions and the liquid content comprising 75 to 80 per cent by weight of the whole.  In a modified grease, the proportions of lithium stearate and lead stearate are reduced and specified proportions of a mixture of ethyl cellulose, beeswax and stearic acid are added.  The light mineral oils, examples of which are given, contain naphthenic acids which form antioxidant naphthenates with the metallic soaps.  Pyrrol is also an antioxidant, castor oil an oiliness and film strength agent, and butyl cellosolve a penetrative compound.
Patent GB-732568-A (GB)
Title: Improvements relating to thermionic valve circuits
Inventor: GARGINI ERIC JOHN
IPC: H02M1/10
Filed: 1952-11-03
Abstract: 732,568. Valve circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Oct. 6, 1953 [Nov. 3, 1952], No. 27564/52. Class 40 (6). In a valve circuit of the A.C./D.C. type, in which a chain of valve heaters 6 is connected, in series with a voltage-dropping resistor 7 across the mains terminals 2, 3, a boosted H.T. supply is obtained when operating on A.C., by connecting an auto-transformer with its primary 4 in series with the heater chain and its secondary 5 in series with the supply to the H.T. rectifier 8.