baber/WOPTO huggingface dataset:
Patent GB-934606-A (GB)
Title: Improvements in or relating to the measurement of magnetic field strength
Inventor: DIX JOSEPH CHARLES
IPC: G01R33/028
Filed: 1959-04-22
Abstract: 934,606. Magnetic testing apparatus. GENERAL ELECTRIC CO. Ltd. April 13, 1960 [April 22, 1959], No. 13784/59. Class 37. Magnetic field strength or direction is measured by apparatus which includes a measuring coil and a comparison coil, and means for synchronously rotating the coils in the field to be measured and the constant field of a comparison magnet, respectively. A cylindrical body 1, Fig. 1, rests in and can be rotated in saddle-shaped mounts 2a and 2b. The coaxially mounted tube 3 contains the measuring coil 6 and the comparison coil 7 mounted in end sections 3c and 3b of insulating material, with the planes of their windings parallel to the axis of rotation. Tube 3 is rotatable by motor 12, has a middle section 3a of a non-magnetic alloy, and three slip rings 14, 15 and 16. The comparison magnet consists of bar magnets 8 mounted between two annuli 10 (one not shown) of soft iron, and is shielded by Swedish iron 11. In the circuit of Fig. 2, 20, 21 and 22 represent the brushes contacting slip rings 16, 15 and 14 respectively, and block 29 includes an amplifier. The field component at coil 6 perpendicular to the axis of rotation is determined by driving tube 3 with motor 12, rotating body 1 in saddles 2a and 2b to give coil outputs in anti-phase, and adjusting resistor 23 to give zero output from amplifier 29. An angular scale may be provided on body 1 for measuring the direction of the field component, and the effect of stray magnetic fields on coil 7 may be eliminated by providing a reversing switch in the circuit of one of the coils, rotating the body through 180 degrees subsequent to operation of the switch, and averaging the readings obtained.
Patent GB-138007-A (GB)
Abstract: 138,007. Ames, B. May 29, 1919. Magneto-electric machines.-In a magneto in which the interrupter is carried on a base-ptate secured to the end of the magneto-shaft the interrupter is so attached as to be as secure as possible against torsional stresses produced by the rotation of the machine. For this purpose, the base-plate 12 is provided with a hollow boss 13 fitting outside the hollow shaft 10 of the magneto and prevented from rotation by a projection 14 struck up on the boss 13 and entering a recess in the shaft 10. The fixed contact of the interrupter is carried on a post 15 having diverging feet 16. 17, 18, Fig. 3, by which it is secured to the baseplate 12 from which it is insulated. A screw 40 passes through the post 15 and connects it to one end plate of the conductor 38, which may be of the construction described in in Specification 137,002. A spring bears on the end of the screw 40 and is connected to a binding-post through which the magneto can be short-circuited if desired. Current is conveyed to the moving contact of the switch through a brush 35 rubbing against the casing of the machine and connected with the moving contact through a blade spring.
Patent GB-242898-A (GB)
Title: Improvements in the process of decorating or finishing earthenware or pottery
IPC: C04B41/81
Filed: 1925-05-27
Abstract: 242,898. Lovatt & Lovatt, Ltd., and Lovatt, A.. E. May 27, 1935. Ink. - An ink for printing on transfer paper to be applied to pottery for decorative purposes, comprises a metallic oxide mixed with 5 parts of quartz, 1 part of lime, and 1 part of clay, liquid gum or other viscous substance being added to make the mixture adhere to the paper. By the use of this mixture the decoration on the pottery is obtained with a matt finish after firing.
Patent GB-711224-A (GB)
Title: Improvements in apparatus for feeding envelopes
IPC: B65H3/26
Filed: 1951-06-11
Abstract: 711,224. Feeding sheets &c. MILLERLAUFFER PRINTING EQUIPMENT CORPORATION. June 11, 1951, No. 13842/51. Addition to 711,223. Class 100 (1) Pile supports, sheet-separators.-In an apparatus according to the parent Specification, a bracket is fixedly supported on either side of the moving stack of envelopes on the feed belt, while a finger secured to the bracket makes frictional contact with the flap fold edge of the moving stack, the point of contact being adjacent, but slightly rearward of the position at which the envelopes are extracted, whereby as the stack moves forward the envelopes escape successively from frictional engagement with said finger. Envelopes are fed on edge on a pair of belts 52, Fig. 4, between laterally adjustable guides 52a to a second pair of belts 39 driven faster than the belts 52, the belts 39 and 52 being vertically adjustable to carry various length envelopes. A U-shaped bracket 63, Figs. 4 and 6, supports adjustment devices 64 having knobs 66 which adjust the position of slidable members 67 carrying pivoted arms 68 carrying rollers 69 engaging the envelope behind that being withdrawn by the chains 45 thus preventing double feed of envelopes. Air from a nozzle 58a blows the flaps of the envelopes forward to ensure their engagement by the fingers on the chains 45. Two vertical columns 1, Fig. 1, extend from a base frame and rotatably support rollers 3. Transverse bars 5 secured to the columns 1 support a vertically adjustable post 7 also adjustable laterally by slots 6. The post 7 carries a horizontal bracket 10 carrying rollers 11 at its end by means of laterally adjustable sockets 12 and also laterally adjustable rollers 19 on axles 17 supported in sockets 16 attached to the sockets 12 by rods 13. A U-shaped rack 21, Fig. 4, is vertically adjustable on the columns 1, the rack 21 carrying two laterally adjustable extendable arms 29 each comprising two parts releasably connected by screws, the rear parts supporting a shaft carrying conveyer drums 38, while the front parts support @ shaft carrying drums 35. The belts 39 pass around the drums 38 and 35, the shaft carrying the drums 35 being driven by a chain 56 and sprockets from a shaft 50 supporting drums 51 for the belts 52. The shaft 50 is driven by worm gearing 53 and a shaft 54 having universal joints 55 so as to permit vertical adjustment of the shaft 50. The columns 1, Fig. 1, support axles 41 carrying laterally-adjustable vertically-aligned rollers 42, the number of rollers in use depending on the vertical position of the rollers 11 and 19 which approximately corresponds to the height of the envelopes being fed along the belts 39. The envelopes on the belts 39 are pressed against the rollers 42, thus stopping their forward travel, such that when fingers 47 on a pair of chains 45 engage the flap-fold of the foremost envelope the envelope is withdrawn vertically, thus rotating the rollers 42, 3, 19 and 11, the inertia of the rollers tending to maintain this rotation.
Patent GB-203747-A (GB)
Title: Improvements in and relating to mats for use on golf tees
IPC: A63C19/04
Filed: 1922-05-17
Abstract: 203,747. Ball, S. May 17, 1922. Mats.-A reversible golf tee mat is composed of plies of rubber alternating with plies of woven textile fabric each surface of the mat being formed of rubber suitably roughened at appropriate points to give a firm grip to the tread of the user. For instructional purposes, a line 6 may be provided to indicate the direction of follow through, the ball being placed in the position x. Portions 5 are roughened to give a grip to the feet of the player.
Patent GB-353957-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04M15/10
Filed: 1930-05-06
Abstract: 353,957. Automatic exchange systems. AUTOMATIC TELEPHONE MANUFACTURING CO., Ltd., Strowger Works, and SAVILLE, W., 6, Haselbeech Crescent, West Derby, both in Liverpool. May 6, 1930, No. 13950. [Class 40 (iv).] A meter M connected in the third wire circuit is shunted by a rectifier RC, e.g. of the copper oxide type, to prevent its operation by normal holding potential, and is operated by temporary reversal of current flow over the third wire, release of the holding relays being prevented by the shunting effect of the rectifier. As described, current reversal is effected by applying higher voltage alternating current e.g. ringing current, the half cycles in the direction of holding current being ineffective while those in the opposite direction operate the meter steadily owing to the rectifier shunt. The meter releases with certainty at the end of a metering pulse so that the arrangement is useful for repeated metering. The arrangement shown comprises an adaptation of the known metering system in which booster battery is connected to the third wire during the release period of a relay J the circuit of which is opened by the answering relay D, normal holding ground for the cut-off and switching relays BCO, HI, H2 being connected over a contact of B. In the present case, booster battery is replaced by the secondary of the ringing transformer, and meter M is shunted by rectifier RC, excessive current flow being prevented by resistance N1.
Patent GB-370699-A (GB)
Title: Improvements in or relating to materials for protecting metal and other surfaces
IPC: C09D101/12
Filed: 1931-05-12
Abstract: A lacquer containing diphenyl guanidine or meta-, ortho- or para-diphenyl benzene is applied as an overcoating to protect a main coating from ultra-violet light, especially a main coating consisting of a cellulose nitrate lacquer on metal and other surfaces.  The overcoating may be a shellac or gum varnish or the vehicle may be a cellulose ester such as the acetate, propionate, or butyrate or a mixed ester such as the aceto-propionate, acetobenzoate, nitro-acetate, phospho-acetate.  The quantity of diphenyl guanidine or diphenyl benzene is preferably between 0,25 and 10 per cent of the vehicle, and is usually 3 per cent. A plasticizer may be added, such as tricresyl phosphate, chlorinated naphthalene, or preferably triphenyl phosphate.  In an example, a solvent mixture for the cellulose acetate overcoating consists of ethyl acetate, acetone, ethyl lactate, and alcohol.ALSO:A cellulose lacquer for use as an overcoating for protecting a main coating, especially a cellulose nitrate coating from ultra-violet light consists of an ester such as the acetate, propionate, or butyrate, or a mixed ester such as the aceto-propionate, aceto-benzoate, nitro-acetate, or phospho-acetate, with diphenyl guanidine or ortho-, meta-, or paradiphenyl benzene, preferably 0,25-10 per cent. with or without a plasticizer such as tricresyl phosphate, chlorinated naphthalene, or preferably triphenyl phosphate, and solvents.  In an example the solvent mixture consists of ethyl acetate, acetone, ethyl lactate, and alcohol.
Patent GB-333229-A (GB)
Title: Improvements in taps, cocks and the like
IPC: F16K43/00
Filed: 1929-05-06
Abstract: 333,229. Hamilton, J., and Hynd, J. May 6, 1929. Closure members.-In a tap, valve, or cock of the kind comprising in addition to the main valve, such as 3, a spring-supported auxiliary valve, such as 9, disposed on the pressure side of the valve seating, the spring 13 is disposed within the guide recess for the stem 10 of the auxiliary valve and acts upon the end of the stem in conjunction with fluid pressure admitted to the guide recess by a small passage or passages 17, for lifting the auxiliary valve 3 to the closed position. The bottom of the guide recess is fitted with a screw plug 14 which is removable for cleaning or inspection. The upper part of the screw is provided with flat portions 15 to allow of the escape of dirt without completely removing the screw plug.
Patent GB-239599-A (GB)
Title: Improvements in and relating to the generation of waves by thermionic valves for wireless telegraphy and telephony
IPC: H03F1/13
Filed: 1924-06-12
Abstract: 239,599. Seymour, C., and Shearing, G. June 12, 1924. Thermionic generators.-Relates to separatelyexcited valve transmitters of the type described in Specification 219,053 wherein a local oscillator D is connected by fixed tappings to an inductance T, from which the main oscillator F is impulsed through an adjustable tapping e. According to the present invention, a resistance r is inserted in the grid circuit of the main oscillating valve F, in order to prevent the setting-up of retroactive parasitic oscillations due to the grid inductance and valve inter-electrode capacities. The transmitted wave-length is altered by varying the tapping points c, d or by altering the value of the condenser C. The plate voltage of the main valve F is supplied through rectifiers L, M; that of the valve D is derived from a rectifier H. As the supply transformers A, B to both rectifiers are in parallel, the optimum setting of the intermediate tapping e to the grid of the main valve will remain constant for any change in the value of the supply voltage. The arrangement is also described as applied to three generator tubes arranged in parallel. Any known method of keying may be employed.
Patent GB-643694-A (GB)
Title: Improvements in or relating to television receivers
Inventor: GRAYSON HARRY
IPC: H04N5/62
Filed: 1948-05-26
Abstract: 643,694. Diplex radio signalling. STANDARD TELEPHONES & CABLES, Ltd. May 26, 1948, No. 14224. [Class 40 (v)] In a television receiving system, the carrier wave for the vision signals is used to heterodyne the incoming sound-modulated carrier wave. The vision and sound modulated carriers are passed through an H.F. amplifier 3 and are fed to two band-pass filters 5, 6, the filter 5 passing only the vision-modulated carrier and the filter 6 passing only the sound modulated carrier. The vision modulated carrier is then fed to a detector 13 and display tube 15, and also through a filter or limiter 16 serving to remove any modulation so that a pure carrier wave is fed to a mixer 18, where it is used to heterodyne the incoming sound modulated carrier from the filter 6. The sound signal is then fed to a reproducing device 23 through a detector and A.F. amplifier 21. In the case of a frequency modulated sound carrier the band-pass filter 5 is rendered unnecessary (Fig. 2, not shown), and a discriminator is inserted between the mixer 18 and amplifier 21.
Patent GB-712816-A (GB)
Title: Fluid-liquid contacting device and process
Inventor: COPPOCK PHILIP DALTON
IPC: C02F1/20
Filed: 1950-06-08
Abstract: <PICT:0712816/III/1> A diaphragm for dispersing fluids in liquids comprises a substantially rigid sheet V bearing at least 25 apertures Q, each aperture being provided with an overlying flexible flap S which opens and closes in response to variation in pressure across the diaphragm.  Preferably the diaphragm has at least one aperture per square centimeter of its surface; the diameter of the apertures may be 1/16 -\ba1/4 inch.  The diaphragm may be made from steel, stainless steel, brass, copper, bronze, aluminium or aluminium alloys, or from "Bakelite" (Registered Trade Mark) or other plastics. The flexible flap may be of metal of thickness 0.005-0.025 inch.  The diaphragm may constitute the outlet from a container into which a fluid is introduced, the container being immersed in a liquid.  The device may be used in chemical processes involving reacting a gas with a liquid, or in degassing liquids by blowing through an inert gas.
Patent GB-662996-A (GB)
Title: Adjustment mechanism for a kneading arm or the like pivoted to move about the vertical shaft of a household machine for kneading, mixing, mincing or the like
IPC: A21C1/00
Filed: 1949-05-28
Abstract: 662,996. Mixing appliances. JENSEN, R., and JENSEN, H. A., (trading as DANSK APPARAFABRIK.). May 28, 1949. [May 28, 1948] No. 14331/49. Class 86. In a kneading, mixing, mincing or like machine for kitchen use of the type comprising a rotating bowl having a kneading roller or other tool supported therein by an arm secured to a vertical shaft placed exteriorly of the bowl, the shaft being spring loaded in a direction to urge the roller towards the side of the bowl, the arm 2, Fig. 1, is provided with a pin 11 having its axis substantially parallel to the said shaft, said pin being movable in its longitudinal directions whereby it acts in combination with a stepped spiral surface 8, 9, 10 on that part of the machine casing which surrounds the said shaft so as to limit in an adjustable manner, the spring impelled movement of the arm towards the side of the bowl. The pin 11 may be spring-urged in its downward direction so that automatic adjustment of the swinging movement of the arm may be obtained.
Patent GB-786793-A (GB)
Title: Improvements in and relating to swim suits
IPC: A41D7/00
Filed: 1955-05-18
Abstract: 786,793. Swim suits. JANTZEN, Ltd. May 18, 1955 [Aug. 23, 1954], No. 14390/55. Class 141 A swim suit comprising .a. portion formed of non-stretchable fabric has loose gathers extending across this fabric and a line of puffed shirring extending transversely of the loose gathering the puffed shirring comprising a relaxed band of elastic web underlying the fabric and joined thereto by parallel lines of stitching. The band has longitudinal stretch only and is resistant to longitudinal folding. A women's swimsuit comprises a bodice portion 10 incorporating breast cups 11 and ornamental shirring 12 and a body portion composed of a front part 14 having vertical stretch only and a back part 15, Fig. 4, united to the front part by elastic side seams 16, the back part having horizontal stretch only. Puffed shirrings produced by underlying elastic bands 28, Fig. 3, having longitudinal stretch only and stitched at 29 to the front part, are disposed along seams 25, 26 located between the centre front and the side seams. The back panel may be in two sections united along a central seam 20.
Patent GB-127476-A (GB)
Title: Improvements in Rubbers.
Inventor: BEAUMONT WILLIAM WORBY
IPC: B43L19/00
Filed: 1918-09-05
Abstract: 127,476. Beaumont, W. W. Sept. 5, 1918. Erasers.-An erasing, cleaning, or surface-gripping body is formed so that it continues to present a number of sharp edges unimpaired by wear. According to one method, an eraser &c. is formed by rolling up a strip or sheet of rubber or rubber composition to form a laminated block, the free end of the strip being cemented down or secured by an encircling band of rubber or adhesive paper. The operative portion of the roll being its ends, the edges of the covering wear away as the ends of the roll wear down. In use, as there is a certain degree of interlaminal flexibility, the sharp edges of the several layers are brought into operation. The block may otherwise be formed by folding the strip to form a laminated structure, by employing a succession of tubes of increasing diameters, or, according to the Provisional Specification, by superimposing numerous small sheets. Several sheets may be rolled up &c. to form the block, the sheets being of different degrees of hardness. Thin layers of spun glass may be interposed between the layers of rubber.
Patent GB-874827-A (GB)
Title: Improvements in or relating to wood working machines
Inventor: ALDERROT ARNOLD
IPC: B27C1/12
Filed: 1960-04-25
Abstract: 874,827. Woodworking. STOCKAMOLLANS A.B. April 25, 1960, No. 14466/60. Class 145. The infeed table 1 of a woodworking machine, particularly a planer, has guide means 8 in the form of a narrow rib which is arranged at right angles to the axis of the cutter 3 and on which the workpiece 5 rests arid, above the table and bearing on the upper surface of the workpiece, guide means 12 arranged parallel to the axis of the cutter. The rib 8 may be round, semicircular or rectangular or may have an acuteangled guiding edge. The guide means 12 comprises a pair of interconnected rollers in arms 14 pivoted in a carriage 18 movable along an adjustable fence 19. A feed device 6 is arranged on the outfeed table 2.
Patent GB-793373-A (GB)
Title: Improvements in and relating to the conveyance of powdered and granular materials
Inventor: MOORE EDWARD AYLETT
IPC: B65G65/44
Filed: 1955-05-19
Abstract: 793,373. Jigging conveyers. McDOUGALLS, Ltd. May 16, 1956 [May 19, 1955], No. 14507/55. Class 78 (1). Powdered or granular material is conveyed from the outlet 13, 23 of a pipe 11 depending from a hopper 10 to the inlet 19 of a pipe 22 along the sloping bottom 14 of an open-topped box 12 which is vibrated by an electromagnetic vibrator 16. The inlet 19 is connected by a sleeve 21 of woven fabric to the pipe 22. The pipe 11 can be adjusted vertically to vary the distance between its bottom 13 and the bottom 14. The bottom 14 is relatively rigid, but the walls 15 of the box are made of light material, e.g. thin steel. The distance between the axes of the pipe 11 and the inlet 19 is less than twice the diameter of the pipe 11.
Patent GB-562915-A (GB)
Title: Improvements in or relating to radio transmission systems
IPC: H04J9/00
Filed: 1942-10-16
Abstract: 562,915. Multiplex wireless signalling. BEATTY, W. A. Oct. 16, 1942, No. 14540. [Class 40 (v)] In a multiplex system using polarisation methods for separating the respective channels, residual interference between the channels is eliminated or reduced by adding on any particular channel a fraction of the signals on the other channels, such addition being in anti-phase and effected at the transmitting station or at the receiving station. The channels may be distinguished by the direction of polarization of the transmitted waves, a number of dipoles being set up in the same vertical plane but at different inclinations ; and anti-phase signals corresponding to the signals on channels B, C, &c, may be superposed on channel A in addition to the true signal to be transmitted on that channel. If these antiphase signals are of correct amplitude, the signal received on channel A is free of interference from channels B, C, &c. In a modified arrangement, only the true signals are transmitted on their respective channels, and the signals received on the respective channels are mixed in such proportions that a true signal without interference is derived for each channel. The Specification gives details as to the proportion in which the signals received on the respective channels are mixed with each other. When the signals are conveyed in the form of time-modulated pulses, the mixing may be performed at the pulse stages of the transmitter or receiver. The system may be used for simultaneous transmission of sound and vision signals on the same frequency spectrum, the vision signals being sent in the normal manner as amplitude modulation with interposed synchronizing signals, and the sound signals as time-modulated pulses. Horizontal and vertical polarization are used for the respective transmissions, and anti-phase sound signals are introduced into the vision transmission. Preferably, the pulse frequency is equal to, or a multiple of, the line synchronizing frequency, and the fixed edges of the time-modulated pulses coincide with the line signals.
Patent GB-892728-A (GB)
Title: A feeding device for a conveyor
IPC: E21F13/02
Filed: 1960-04-26
Abstract: 892,728. Feeding conveyer buoyancy apparatus. JOY MANUFACTURING CO. April 26, 1960 [May 11, 1959], No. 14551/60. Classes 78 (1) and 78 (2). In a method of feeding coal 60 to an endless scraper conveyer 7, the coal is dumped on to a pair of inflatable nylon members 30, one disposed at each side of the conveyer, and air is pumped into the members so that they swell to urge the coal inwards on to the conveyer 7 as shown. Each member 30 is covered by a thick protecting member 56 and is secured to the conveyer frame 2 by clips.