baber/WOPTO huggingface dataset:
Patent GB-641543-A (GB)
Title: Improvements in or relating to frequency-modulation circuits
IPC: H03C3/08
Filed: 1946-07-04
Abstract: 641,543. Frequency modulation. PHILIPS LAMPS, Ltd. July 4, 1946, No. 20021. Convention date, June 30, 1942. [Class 40 (v)] Frequency modulation is produced by feeding back from a modulator comprising one or more valves to the anode circuit of an oscillator valve 1, Fig. 1, an amplitude modulated signal derived from but differing in phase by about 90 degrees from the anode voltage of the valve in such a way that no coupling exists between the anode of the oscillator and the modulating oscillations except that due to the electron stream of a valve. A condenser 5, Fig. 1, of high reactance and resistance 7 feed to a modulator valve 6, having in its anode circuit a modulator 10, a grid voltage in phase quadrature with the anode voltage of the oscillator valve 1 to produce a modulator valve anode voltage also in quadrature which is impressed by a condenser and inductively coupled coils 9, 2, on a tuned anode circuit of the oscillator 1, additional coupled coils 8, 11 negativing any in-phase coupling between the anode circuits of the valves. Alternatively, Fig. 2, the modulator valve 6 is connected by resistance capacity coupling with a reactance valve 12 with anode connected to the oscillator valve and to a phase quadrature condenser 5 and resistance 7 input of the modulator valve 6. Alternatively, Fig. 3, amplitude modulation of the quadrature volate fed from the oscillator valve 1 to the grid of the reactance valve 12 by a condenser 5, resistances 7 and 19, and a circuit 17 tuned to the mean oscillator frequency"damped by a resistance 18, is effected by a diode 14, battery 15 and modulation source 16 across the grid. The diode limits the modulating carrier wave amplitude to the difference between the battery and modulation voltages. Valves in push-pull may alternatively be used.
Patent GB-907377-A (GB)
Title: Improvements relating to shuttering for use in forming a column, beam or like structure
Inventor: GOSTLING PETER ERIC
IPC: E04G13/02
Filed: 1958-06-24
Abstract: 907,377. Shuttering for concrete. KWIKFORM Ltd. June 23, 1959 [June 24, 1958], No. 20120/58. Class 20 (2). Shuttering for concrete columns or beams comprises four panels 12 connected perpendicularly to each other by adjustable clamps each comprising a bolt 26 secured in a bracket 27 fastened on one panel with its other T-shaped end 28 received between two angle-sections 23 on an adjacent panel. In use, the end 28 is rotated to bear against the outer sides of the sections 23 and is clamped by a nut 30 fastened on its threaded inner end. An abutment 36 prevents the panels from pivoting about their edge flanges 16 on tightening. A U-section member comprising flat sides 31 prevents damage to the bolt 26. A wedge 33 is inserted in selected slots 25 in the sections 23 to bear on a convex web 32 connecting the plates 31. The shuttering panels are stiffened by V and anglesection bars. The assembled shuttering is supported from the ground by stays.
Patent GB-379053-A (GB)
Title: Improvements in or relating to rotary vacuum filters and like machines
IPC: B01D33/00
Filed: 1931-07-14
Abstract: 379,053. Filters. MANLOVE, ALLIOTT & CO., Ltd., Bloomsgrove Works, Notting- ham, and TITTERTON, F., 17, Clifton Road, South Norwood, London. July 14, 1931, No. 20164. [Class 46.] The cloth 4 covering each separate peripheral cell of a rotary drum suction filter is held in place over the cell by means of reinforcements 5 on its longitudinal edges, which cannot pass through the spaces left between adjacent cells or are held in undercut grooves. The cloths are drawn longitudinally over the cells, apertures being provided in the ends 2 of the drum for the passage of the hems. The cloths may be stretched over the cells by means of screwed bolts 11, Fig. 6, connected to rods 10 threaded in the hems. Springs may be provided on or replace the bolts 11. One or both ends of each cloth may be provided with a pocket 6, Fig. 2, which fits over a projection 7 on the end 2 of the drum. Or the ends of the cloth may be secured mechanically as by packing into grooves or by means of spring hooks. The cells may be formed to taper slightly in the longitudinal direction, adjacent cells being tapered in opposite directions or separated by tapering division members which provide independent slots for the adjacent edges of the cloths.
Patent GB-955334-A (GB)
Title: Improvements in or relating to electrode dies for heat sealing thermoplastic materials
IPC: B29C65/74
Filed: 1960-06-08
Abstract: 955,334. Dielectric heating electrodes. E. A. PETERSON, and H. W. PETERSON. June 8, 1960 [June 8, 1959], No. 20176/60. Heading H5H. [Also in Division B5] An electrode die for electronic heat sealing of thermoplastic laminations 15, 16 of which one, 15, is materially thicker and softer than the other, 16, comprises a base, a die element 3 of electrically conductive material on said base, and a knife edge 4 on said die element 3 defined by a pair of intersecting bevels of which one is at a materially smaller angle to the horizontal than the other, thereby to force the material of the thicker and softer lamination 15 away from the heat seal seam as the die is pressed into the lamination to ensure a fine line heat seal seam. The die may be of brass, mounted on a reciprocable plunger in a press and provided with a housing containing an electric heating element for pre-heating the die (Fig. 2, not shown). In the embodiment described the lamination 15 is polyurethane foam and the lamination 16 is a vinyl film. The press includes a conductive base-plate, forming the other electrode, surmounted by a dielectric buffer plate 13 and an optional further buffer 14 of a material to which polyurethane does not adhere.
Patent GB-875626-A (GB)
Title: Improvements in windscreen wipers
Inventor: SMITHERS PHILLIP GEOFFREY KENT
IPC: B60S1/40
Filed: 1959-06-12
Abstract: 875,626. Windscreen wipers. TRICOFOLBERTH Ltd. June 9, 1960 [June 12, 1959], No. 20239/59. Class 138(1). A box portion of a " spoon-and-box " type of connection between a wiper blade and a wiper arm is mounted on a rigid floor on which rests a strip 22 of stainless steel or resilient plastic, having the shape shown, and within which is positioned a block 30 of resilient material, such as rubber, having an outline following that of the strip 22 except that the surface 32 is convex upwards. The box portion is pivotally attached by lugs 14 to a web 10 of an inverted channel member 12 which is attached by a pin 16 to a backing strip 18. Alternatively the box may be attached by bent lugs to a harness yoke.
Patent GB-950011-A (GB)
Title: Improvements in or relating to electric connectors
IPC: H01R13/20
Filed: 1961-06-06
Abstract: 950,011. Two-part couplings. CAMBRIDGE THERMIONIC CORPORATION. June 6, 1961 [June 10, 1960], No. 20372/61. Heading H2E. A plug-and-jack assembly comprises jackunit 2 (Fig. 5) with a sleeve 8 open at least at one end 12 provided with an axial groove 30 and a notch 18, partly within a reduced diameter portion 16 of the sleeve, extending through the sleeve wall with a key 32 fitted therein, and a cylindrical plug unit 4 having a groove 48, the key being inwardly constrained to hold the members 2 and 4 in locked relation by a circumferential split ring 40 movable outwards by the action of a tool T sliding in the groove 30 to permit withdrawal of plug member 4. Contact between the plug and jack members is improved by the pressure of the split-ring through the key.
Patent GB-652010-A (GB)
Title: Improvements in or relating to cabinets
IPC: E06B3/36
Filed: 1948-07-30
Abstract: 652,010. Cabinet doors. BERESFORD, J., BERESFORD, E. G., HICKS, R. B., and HICKS, W. S. July 30, 1948, No. 20378. [Class 52 (i)] A cabinet is provided with one or more doors 9, 10 lying in the plane of the front and mounted on pivoted arms 11 moving beneath a false bottom 13 or, in the case of horizontally pivoted doors, behind a side screen. Shelves may be mounted on the inner faces of the doors.
Patent GB-915613-A (GB)
Title: Mounting of insulators on supporting spindles
Inventor: MEHEGAN ROBERT EMMANUEL
IPC: H01B17/20
Filed: 1961-06-06
Abstract: 915,613. Insulators. GALVANIZING INDUSTRIES PROPRIETARY Ltd. June 6, 1961, No. 20391/61. Class 36. An insulator spindle comprises a metallic stem 1 to which is firmly fixed a moulded head 9 of resilient plastic such as polyethylene or nylon. The head may be injectionmoulded, Fig. 3 (not shown), on the spindle end which bears a T- shaped indentation or is otherwise suitably shaped, Figs. 5-8 (not shown) to prevent axial and rotational movement of the head. A porcelain or glass insulator 2 screws on to the spindle head and the spindle is bolted to the cross-arm 3 of the. telephone pole.
Patent GB-865860-A (GB)
Title: Self-hardening alkali- and acid-resistant water glass cements capable of swelling
IPC: C04B28/26
Filed: 1957-06-28
Abstract: A cement comprises alkali metal water glass, a divalent metal cyanamide and a powdered calcium-aluminium-iron silicate of approximate composition by weight: 5-15% of SiO2; 30-50% of Al2O3; 5-15% of Fe2O3; 35-45% of CaO.  The preferred proportion of metal cyanamide is 0,1-10%, and of the calcium-aluminium iron silicate 5-50%, based on the weight of the cement powder.  Specified cyanamides are lead, calcium or barium. The alkali metal water glass consists of a sodium and/or potassium water glass, the molar ratios being between 2,0 : 1 and 3,0 : 1 for SiO2:Na2O and between 1,7 : 1 and 2,5 : 1 for SiO2 : K2O and may be incorporated either in powder form or in solution, the molar ratio SiO2 : H2O in the latter case being higher than 0,33 : 1.  When used in the powdered form there may be added, to make up the cement, an emulsion with water of polyvinyl chloride or co-polymer of vinyl chloride and vinyl acetate, or other plastic material miscible with water glass solutions.  A hardener may also be added, e.g. 1-10% based on the weight of the cement powder of a silicafluoride, sulphochloride, acid ester, acid amide, or metal oxide; formamide, p-toluene sulphochloride or homologue, methyl acetate or homologue, or an oxide of magnesium zinc or lead being specified as suitable such additives.  Quartz powder may also be incorporated.
Patent GB-352730-A (GB)
Title: Improvements in or connected with road, garden and like rollers
IPC: E01C19/26
Filed: 1930-07-07
Abstract: 352,730. Road and garden rollers &c. BRETHERTON, C., 50, Ranelagh Gardens Mansions, Hurlingham, London. July 7, 1930, No. 20513. [Class 6 (i).] The frame of an engine-driven roller comprises a tube A forming a fuel tank and inclined downwardly from the steering socket B to an engine frame or casing L mounted on the rear axle P. The steering head Q is of the shape shown being pivotally connected with the steering socket B by a vertical pin S and with the front roller stem or fork T by a horizontal pin U passing through lugs Q<4>, Q<5> on the head Q and through a bearing bracket V bolted to the fork T. The upper arm Q<1> of the head Q carries a lever R or is connected with other steering mechanism. The tube A is provided with a filling hole G and with a pipe H leading to the carburetter N of the engine M. It may be connected to the socket B and casing L by clip appliances J, K. The tube A carries foot-rests Z<1>, and the clip K carries a spring support Y for the driver's seat Z.
Patent GB-504813-A (GB)
Title: Improvements in respiratory apparatus for protection against toxic bodies and deleterious gases
IPC: A62B18/02
Filed: 1937-07-26
Abstract: 504,813. Gas - masks ; eyepieces. AUDY, J. A. July 26, 1937, No. 20642. Void. Convention date, July 25, 1936. [Class 81 (ii)] [Also in Group XX] A rubber gas-mask 1, Fig. 1, is provided with ear-covering flaps 3, which may be cupped and stiffened by wire or a metal framework, or may enclose a diaphragm connectible with a microphone. A portion 13 covering the chin is provided and the eyepieces are spaced from the forehead by the part 14. The eyepieces 10, Fig. 3, are bedded in a rubber or guttapercha mastic 9a held between a flanged screw ring 9 and a cardboard or like washer 11 upon which the ring seats, or, as shown, between the ring 9 and an angle-section ring 12. The ring 9 is screwed into a screw ring 5 which co-operates with a ring 6 to clamp the material of the mask. The edges of the mask sight holes are reinforced with wire 4 received in annular recesses 7 in the parts 5, 6. A thin iron washer 8 prevents tearing of the mask material on screwing parts 5, 6 together. A disc, coated to prevent the deposition of moisture, may be clamped in contact with eyepiece 10 or spaced therefrom by a washer similar to but thicker than 11, the space between disc and eyepiece being evacuated or filled with air, or communicating with a crescent-shaped chamber around the eyepiece leading to a tube opening into the mask.
Patent GB-148934-A (GB)
Title: Improvements in self-lubricating pistons
IPC: F16J15/32
Filed: 1920-07-10
Abstract: 148,934. Arbuckle, S. F. Feb. 26, 1918, [Convention date]. Capillary-action lubricating.- A piston is formed with a cupshaped chamber containing lubricant, and closed by a diskshaped packing which absorbs the lubricant by capillary action. In the form shown, a leather packing-disk 17 is clamped between a cup 16 and a washer 18. The chamber thus formed contains lubricant, which may be supplied by a passage 22 in the piston-rod. Alternatively, the edges of the disk 17 may point downwards, in which case the cup 16 may be underneath and the washer 18 above.
Patent GB-909632-A (GB)
Title: Apparatus and method for treating cast aluminum particles
IPC: E21B43/267
Filed: 1961-06-09
Abstract: 909,632. Wells. REYNOLDS METALS CO. June 9, 1961 [Dec. 1, 1960], No. 20881/61. Class 85. [Also in Group XXII] An agent for propping open oil well fractures to increase the permeability of the well comprises surface hardened aluminium particles, Fig. 1, suspended in a fluid such as crude oil or water. Initially a fluid such as crude oil, kerosene, acid or water with an agent to prevent fluid loss into the formation may be pumped under pressure to enlarge the fracture. Preferred particle sizes are given as being within a limiting screen size of 5 and a retaining-screen size of 20 (U.S. Sieve Series, Standard Screen Series 1919).
Patent GB-199629-A (GB)
Title: Improved combined cigar and cigarette holder and ash tray
IPC: A24F13/14
Filed: 1922-07-31
Abstract: 199,629. Hearsey, W. A. July 31, 1922. Ash-trays; ash-retaining attachments for cigars and cigarettes.-A combined cigarette or cigar holder and ash-tray comprises a tray c with an absorbent lining f and a holder g consisting of two gripping jaws attached to the tray by a flexible member h. The tray has lips d, e which, when the tray is flushed with water and held in the vertical position, retain a small amount of water so that the lining f is kept moist. The holder, tray, and connecting member h may be formed from one piece of aluminium, celluloid, &c. The cigarette may be placed directly in the holder g, or an ordinary holder may be inserted into the holder g and secured by a split ring. The bottom or sides of the ash-tray may serve as match-strikers.
Patent GB-218145-A (GB)
Title: Improvements relating to weighing machines or scales
IPC: G01G19/00
Filed: 1923-08-20
Abstract: 218,145. Crossley, T. Aug. 20, 1923. Relieving and locking mechanism. - An equal-armed balance having relieving mechanism as described in Specification 13127/96, is provided with means for locking the beam in the relieved position. The beam A is supported on vertically slidable bearing blocks a<1> which are adapted to be raised and lowered by cams C counted on a shaft c. In the lowered position, extensions a<2> on the beam, engage stops b<3> on the frame B, and a latch D, Fig. 1, mounted on the shaft c engages the upper surface of one of the beam pivots a thereby locking the beam in the relieved position. In a modification the locking device comprises an arm which projects downwardly from the shaft c and is adapted to engage the usual link E. As shown in Fig. 5, the locking device comprises an arm D<1> pressed into a cross-piece a<3> of the beam by a spring d<6>, and adapted to be rotated out of engagement by a wing-nut d<4>.
Patent GB-698173-A (GB)
Title: Improvements relating to the joining of metal or non-metal parts by brazing, soldering, or casting-on
IPC: B23K35/00
Filed: 1949-08-12
Abstract: In joining parts by brazing, soldering, or casting-on to a part containing or consisting of a carbide or boride or consisting of an alloy of tungsten or molybdenum, a superficial layer of a wettable metal or alloy is provided first on the part and then diffusion is effected by heat.  This diffusion may occur in either direction and may include some alloying.  The layer may comprise nickel, copper, iron, tin, zinc, copper, silver, gold or lead or an alloy thereof and be formed by chemical, electro-chemical or physical operation.  The metals may be applied as salts, e.g. sulphates or chlorides or oxides and heating be carried out in hydrogen or other reducing gas or the metals may be applied by electrolysis, by decomposing a substance, such as nickel-carbonyl gas or iron-carbonyl liquid, on the surface of the preheated part or by spraying, dipping or painting with a solution or suspension.  The material may be applied in successive layers with or without heating between the applications.  The temperature used and the duration of application is regulated to ensure the formation of an adherent wettable surface layer.  This heating is preferably carried out in a vacuum or in inert or reducing atmosphere and may occur as the first step in the joining operation. The method may be used in making X-ray anticathodes by electroplating a tungsten carbide piece with nickel, heating to 1150 DEG C for 1 hour and casting-on a body of copper.  In joining a cemented carbide part to a steel body, both may be provided with a wettable layer before joining.
Patent GB-743945-A (GB)
Title: Improvements in or relating to the mounting of electric discharge devices
Inventor: HAMILTON DONALD
IPC: H01R33/76
Filed: 1953-07-29
Abstract: 743,945. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. July 16, 1954 [July 29, 1953], No. 21047/53. Class 39 (1). A discharge tube 1 of the flying lead type is mounted on an insulating block 4 having connecting tags 3 at its other side, a container 15 being secured to the block, with resilient means such as a spring 6 to hold the tube firmly against the block, and with projections 13 for securing to a chassis. The flying leads 2 are threaded through a central aperture, hitched round and welded to the tags. The container has lugs 9, 10 for securing to the block 4. It may be blackened, and have cooling slits 14 which may engage the tube. An inter-terminal shield 12 may be secured into the block during moulding.
Patent GB-325460-A (GB)
Title: Improvements relating to piston-ring devices
IPC: F16J9/20
Filed: 1929-07-09
Abstract: 325,460. Beer, G. July 9, 1929. Pistons, packing. - In a packing-ring for pistons, the ribs 4 of the sprung inner ring 6 press against the sides of grooves 3 in the outer ring 1, the oblique surfaces being staggered to cause relative displacement of the rings when in the piston groove. The ends of the outer ring are bevelled off tangentially forming a gap 7 which increases in width either towards the inside or the outside. Adapted to stuffing-boxes, the inner ring acts as the closure-ring and the outer produces the pressure.
Patent GB-202987-A (GB)
Title: Improvements in highway signal lamps
IPC: G08G1/095
Filed: 1923-08-21
Abstract: 202,987. American Gasaccumulator Co., (Assignees of MedÚn, E. H.). Aug. 25, 1922, [Convention date]. Signal lamps.-In highway or road signal lamps for use at crossings where roads meet at acute angles or where the meeting roads are of different gradients, means are provided in front of one or more of the lenses of the lamp for deflecting the light in the required direction. As shown, a rectangular lamp casing 2, mounted on a hollow support containing a gas supply chamber for the burner, is provided with light-emitting apertures in which are disposed lenses 5 facing the roads 8 - - 11. In front of the lens facing the road 11 is secured a glass plate 16 provided on its inner face with prisms 15 so as to deflect the light in the direction shown. The plate 16 is detachably secured between a flange on the mouth of a ring 18 secured to the casing and a flanged ring 21 by a clamping ring 22 of V-shaped cross-section which embraces the flanged portions of the parts 18, 21. The plate 16 may be turned so that the prisms 15 run in a horizontal direction for deflecting the light in a vertical plane for use on inclined roads.
Patent GB-372171-A (GB)
Title: Improvements in or relating to temperature controlling devices
IPC: F25B49/00
Filed: 1931-07-24
Abstract: 372,171. Thermostats. ELECTROLUX, Ltd., 153, Regent Street, London.- (Assignees of Platen-Munters Refrigerating System Aktiebolag ; 2, Norrmalmstorg, Stockholm, Sweden.) July 24, 1931, No. 21173. Convention date, Aug. 20, 1930. [Class 64 (ii).] In thermostatic apparatus operating by change of state of a medium such as water, sub-cooling and delay in the change of state of the medium are avoided by subjecting it to the radiation of a radio-active substance, which mav be added to the medium in small proportion, e.g. the thermostat may contain 1-500 mg. of uranium oxide. Specification 308,773, [Class 15 (ii), Dyeing, Processes &c. for], is referred to.
Patent GB-358909-A (GB)
Title: Improvements in or relating to cylinder heads for internal combustion engines
IPC: F02B23/08
Filed: 1930-07-14
Abstract: 358,909. Cylinders. RICARDO, H. R., 21, Suffolk Street, Pall Mall, London. July 14, 1930, No. 21228. [Class 7 (ii).] In a side-valve engine a sparking plug socket F in the combustion chamber roof, which is flat and shown in plan in the Figure, is located in the plane through the axes of the cylinder and the exhaust valve. The sides E<5>, E<6> are tangential to the cylinder bore and the dimensions shown are such that g is between 3/3À25 and ¥ and h and j are respectively not greater than 3/1À75 and 3/1À4.
Patent GB-1286724-A (GB)
Title: Furnace for heat treatment
IPC: F27B17/00
Filed: 1970-05-04
Abstract: 1286724 Industrial heat treatment store; burner mixing chambers APPLICATION DES GAZ 4 May 1970 [30 June 1969] 21309/70 Headings F4T and F4W A stove for heat treatment, particularly for firing small enamelled metal parts, comprises a hearth plate 10 arranged over a well in a refractory block 8, a heat source 13 being arranged in the well, and a removable cover 21 of refractory glass. The block 8 is a felt of compressed mineral fibres, and the well is of upturned frusto-conical form with a cylindrical bore 8b at the bottom. The burner comprises a wire gauze 13 at the top of a tube 12 fed from a mixing chamber 11 removably secured to the bottom of the stove body and fed with gas under pressure from a nozzle 16. The cover 21 has an out-turned lip surrounding an exhaust aperture and forming a groove to accommodate a wire 22a which extends to form lugs 22b pivoted to the body to allow the cover to be raised. The hearth plate 10 is supported by lugs 10a, spaced to leave apertures through which gases rise from the well to the exhaust outlet in the cover 21.