baber/WOPTO huggingface dataset:
Patent GB-645548-A (GB)
Title: Improvements in or relating to electric circuit arrangements for operating an electric discharge device from an a.c. supply
IPC: H05B41/40
Filed: 1948-09-30
Abstract: 645,548. Control systems for space discharge lamps. GENERAL ELECTRIC CO., Ltd., and WILLIAMS, C. E. Sept. 30, 1948, No. 25516. [Class 38 (iv)] In a circuit for a discharge device (particularly a lamp 1) supplied through a reactive ballast impedance 11 and including power factor correcting means and control means for controlling the intensity of the discharge current, e.g. for dimming, the power factor correcting means is adjusted consequent upon adjustment of the control means to ensure a good power factor with different values of discharge current. Preferably the power factor correcting means is gauged or combined with the control means for adjusting the discharge current to obtain simultaneous adjustment. In the arrangements described, the power factor correcting means comprises a condenser 16 connected in parallel with an adjustable choke 31 across the supply leads and the lamp current control means comprises an adjustable choke 30 in series with the lamp. Adjustment of the chokes may be effected by either tappings or control windings. In the case of tapped chokes (Fig. 1, not shown), the two selector arms are ganged and arranged so that the inductance of one choke is increased when the inductance of the other choke is decreased, to obtain the required compensation. With control windings this may be effected by connecting the two control windings 32, 33 on the respective chokes in series through a resistor having a variable tapping point connected to one pole of a D.C. supply, the other pole of which is connected to the lead between the two windings (Fig. 2, not shown), so that upon adjustment of the tapping point the current in one saturating winding is increased upon decrease in current in the other winding. Alternatively, the two control windings may be supplied in series through a variable series resistor 34, with an opposing biassing winding 36 provided on one choke such that upon increase of current in winding 32 the resulting magnetizing effect is decreased. According to the Provisional Specification variation of the inductance value may also be effected by adjusting the position of the iron cores.
Patent GB-609824-A (GB)
Title: Improvements in or relating to resonant electric circuits
IPC: H03J3/18
Filed: 1945-10-02
Abstract: 609,824. Impedance networks. COURSEY, P. R., SNELL, L. J., STEATITE & PORCELAIN PRODUCTS, Ltd., and DUBILIER CONDENSER CO. (1925), Ltd. Oct. 2, 1945, No. 25565. [Class 40 (viii)] [Also in Group XL (c)] In a band-pass filter or aerial coupling having automatic control of selectivity, a voltage-sensitive condenser having a ceramic dielectric based on compounds of titanium and alkaline-earth metals, as described in Specifications 574,577 and 601,109, [both in Group XXXVI], forms part of a circuit whose natural frequency consequently depends on the voltage applied. An amplifier with automatic selectivity-control may comprise a bandpass filter 33, 34, Fig. 5, in which as the signalstrength increases the band width is widened by the action of the voltage-sensitive condenser 32. A similar result is obtained by using the voltage-sensitive condenser as a series arm coupling two tuned circuits, Fig. 7 (not shown), or as at 43 in an aerial coupling, Fig. 8. The Specification describes several other network arrangements.
Patent GB-1172886-A (GB)
Title: Universal Joints
Inventor: INGHAM MICHAEL JOHN
IPC: F16C11/12
Filed: 1967-06-02
Abstract: 1,172,886. Tillers. RICHMOND MARINE Ltd. 4 June, 1968 [2 June, 1967], No. 25581/67. Heading B7V. [Also in Division E2] A tiller 11 and tiller extension 12 may be connected by a universal joint having a pair of elements 1 and 2 whose joining portions 4 have outer surfaces 5 which are domed. A co-axial bore 6 extends through each domed portion 5 and is enlarged at 7. A length of line 8 is located in the bores 6. Each end of 8 is knotted and the knots 9 are housed in 7. The arms 3 of each element are provided with holes 10 so that the brackets may be fastened to 11 and 12.
Patent GB-1435783-A (GB)
Title: Device and method for measuring the humidity of gases
IPC: G01N25/62
Filed: 1973-05-30
Abstract: 1435783 Measuring humidity of gases WERNER-PFLEIDERER 30 May 1973 [30 May 1972] 25646/73 Heading G1S Gas to be humidity tested is filtered and its temperature is controlled by its being passed through a finned heat exchanger 1 which may be heated by an electric means 3 or cooled by a blower 4 both controlled by a device 5 co-operating with a dry thermometer 9 in a measuring chamber 8. A wet thermometer in the form of a lithium chloride feeler 10 has a wick extending into gas condensate in the bottom of chamber 11, and furnishes directly a precise indication of the humidity. In order to obtain the condensate the gas is sucked by a pump 18 through a conduit 12, a cooler 13, the condenser 14 which are cooled by peltier elements 15 and an air blower 17, the pump 18 also draws off excess condensate.
Patent GB-426120-A (GB)
Title: Improvements in or relating to gates
IPC: E06B11/04
Filed: 1934-09-06
Abstract: 426,120. Hinges. GIBSON, P. N., Elderden Farm, Staplehurst, Kent. Sept. 6, 1934, No. 25658. [Class 65 (ii)] In order to allow of adjustment for sagging, the upper hinge of a gate is attached to the gate adjustably by bolts J passing through slots K in the hinge member H; security against slipping is obtained by a stud on the gate engaging one of a series of holes L, or recesses, in the hinge member, or vice versa. In order to allow for tilting consequent on adjustment, the member H is angularly adjustable relative to a hinge block carried on the hinge pin E fixed to the gate post, being attached thereto by two bolts F, F<1>, of which the latter engages an arcuate slot in the hinge block. Preferably, the member H is duplicated on the other side of the gate, the two members embracing the hinge block, and a U-shaped member embraces the rear upright of the gate and part of the top member thereof and is formed with the locating studs or the holes L. In a modification, one or more of the slots K may be replaced by a series of holes, the studs and holes L then being unnecessary; one set of holes K may be replaced by a series of inclined notches in the lower side of the hinge member. The hinge member may have a series of holes for the bolts F, F<1>, allowing further adjustment. The lower hinge member is fixed to the gate, but is adjustably attached to a hinge block in the same way as the upper.
Patent GB-949994-A (GB)
Title: Improvements in or relating to fastening devices
Inventor: PARKIN LESLIE
IPC: B60R13/10
Filed: 1961-07-14
Abstract: 949,994. Stud & socket fastenings. CARR FASTENER CO. Ltd. July 3, 1962 [July 14, 1961], No. 25662/61. Heading E2B. [Also in Division F2] A fastener for securing an article having a rearwardly extending pin to an apertured panel comprises an annulus 1 formed of spring steel, the periphery of which defines an opening, the fastener having fingers 2 extending rearwardly from one face and substantially normal thereto, the fingers being biased inwardly so as to be engaged and urged radially outwards by the pin when inserted through the opening in the annulus such that reversely bent, forwardly extending portions 2a of the fingers are positioned in engagement with the adjacent face of the panel to secure the fastener thereto. The inner periphery of the annulus 1 is formed ,with inwardly extending resilient segments 3 the edges of which are adapted to frictionally grip the pin.
Patent GB-255690-A (GB)
Title: Improvements in grease and oil pumps for motor cars and machinery
IPC: F16N3/12
Filed: 1925-10-14
Abstract: 255,690. Drummond, H. E. M. Oct. 14, 1925. Piston apparatus for discharging receptacles. -A device for forcing grease or oil comprises a cylinder with removable upper and lower covers 3, 4, a screwed rod 8 passing through the upper cover and being held up by a spring 12. A piston is mounted on the rod provided with cup leathers 20A, a spring packing-ring 21, a grease-catching groove 17. and vanes 22 which engage in the grease and prevent the piston from rotating with. the rod 8. A cartridge 24 filled with grease is put in the cylinder after removing the bottom cover 4, the bottom cover is replaced and the base of the cartridge punctured by depressing the rod 8, which has a pointed end. By rotating the handle 9 the piston is moved down to expel the grease. The upper end of the cartridge, is flared and the base is dished. A gauge rod may be inserted through a hole 6 in the top cover.
Patent GB-536291-A (GB)
Title: Cylinder mold paper-making machine
IPC: D21F9/04
Filed: 1939-09-13
Abstract: 536,291. Cylinder paper-making machines. GOLDSMITH, P. H. Sept. 13, 1939, No. 25736. Convention date, Sept. 27, 1938. [Class 96] Flow of pulp adjacent to the cylinder mould 2 of a paper-making machine is regulated and leakage of pulp at the ends of the mould prevented by a vatcircle or false vatbottom 8 concentric with an outer rigid vatcircle 7 and adjusted and supported by rods 18, 19, 20, the adjustment being with slotted plates at the ends of the vat. Pulp flows to the vat from a double-walled conical flow-box in which it passes up the inner cone and down between the two walls thereby removing air or gas, reducing turbulence &c. Excess pulp from the vat flows over an adjustable dam 12 through a pipe 13 &c. and is mixed with part of the white water, and with fresh pulp at constricted parts of pipe-lines so as to induce turbulence and effect thorough mixing before the pulp reaches the flow-box.
Patent GB-404087-A (GB)
Title: Improvements appertaining to ambulances
IPC: A61G3/00
Filed: 1932-09-16
Abstract: 404,087. Ambulances ; spring buffers. SOUTHERN, H., 22, Ashworth Lane, and SOUTHERN, H., 284, Blackburn Road, both in Bolton. Sept. 16, 1932, No. 25756. [Classes 108 (i) and 108 (iii).] In ambulances in which the stretcher is adapted to be brought to a lower level for loading and subsequently raised, the stretcher support is carried by lever arms counterbalanced by spring devices which are adjustable. The upper stretcher supporting device 15, 18, 18a is carried by lever arms 5, 5a, 5b and is adapted to be lowered against the resistance of an adjustable spring device which consequently assists the subsequent raising. The front lever arms may be detached from the supporting device which may then be turned up as shown in Fig. 5 to permit access to the lower stretcher supporting device 18b. The upper stretcher device may be locked in its upper and lower positions by means of a rod 5w adapted to enter apertures in the bracket 20 as shown in Fig. 7. Spring buffers.-The spring device comprises two telescopic casings 8, 9 enclosing a spring 11 while the casing 9 further telescopes into a casing 10 in which are housed two springs 12, 13 separated by an abutment plate 10a and provided with an adjustable plate 14 to vary the compression and consequently the resistance of the device.
Patent GB-924501-A (GB)
Title: Process for the orientation of tubular films
IPC: B29C48/03
Filed: 1959-07-27
Abstract: A tubular film of a thermoplastic polymeric material made by extrusion of a melt through an annular nozzle 2 followed by inflation with air or other gas, is conveyed through a first duct 4 at a temperature of from 5 DEG  to 20 DEG C. below the softening point of the film but above its second order transition temperature, the pressure in the first duct corresponding to the internal pressure of the air or other gas in the tubular film, and the hardened and substantially amorphous film is then passed into a highly polished pipe 7 heated to substantially the same temperature, the diameter of the pipe being equal to the diameter of the tubular film, and is then guided into a second heated duct 8 in which <PICT:0924501/IV(a)/1> the pressure is lower than that in the first duct, and wound up by rollers (not shown) rotating at such a speed as to effect longitudinal stretching of the film.  In the apparatus shown hot air is supplied to duct 4 via inlet 5, escaping through outlet 6, while the tube is inflated with air or other gas via 3.  The duct 8 is heated with radially-arranged infra-red heaters 9. Specified materials include polyethylene, polyamides, polyesters, polyvinyl chloride and polyvinylidene chloride.
Patent GB-1318820-A (GB)
Title: Apparatus
IPC: G01N22/00
Filed: 1971-04-19
Abstract: 1318820 Electron resonance spectrometers SAGAMI CHEMICAL RESEARCH CENTER 19 April 1971 [31 March 1970] 25814/71 Heading G1N A C band electron resonance spectrometer for gaseous samples comprises a cylindrical cavity resonator comprising a cylindrical body 1 and two end plates 2 insulated from the body 1 by spacers 5 and serving also as Stark electrodes, a pair of coils 6 for Zeeman modulation mounted on the end plates, and a nuclear magnetic resonance probe 7 for measuring the magnetic field, the cavity resonator resonating in the TEoIn mode at a frequency in the range 3 to 5 G Hz. A coupling hole 3 is connected to a micro-wave source (not shown). The gaseous sample flows through the resonator from inlet 4 to outlet 9.
Patent GB-649765-A (GB)
Title: Improvements in the desulphurisation of vegetable foodstuffs
IPC: A23B7/144
Filed: 1946-08-28
Abstract: 649,765. Removing sulphur dioxide from foods preserved therewith. FABRE, J. M. L. Aug. 28, 1946, No. 25836. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 28, 1946]. [Class 49] In the removal of sulphur dioxide from vegetable foods preserved with sulphur dioxide or a derivative thereof, e.g. potassium metabisulphite, sulphur dioxide together with condensable constituents of the food under treatment are caused to evolve in the gaseous state by agitation of the food, the evolved gases are brought into contact with a cooled surface on which the volatilized constituents other than the sulphur dioxide condense, and the condensate is returned, preferably by flowing down the surface on which it has condensed. to the food under treatment. With the apparatus of Fig. 1, a batch of grape juice previously treated with sulphur dioxide is delivered through a pipe 2 into a container 1 heated by a steam jacket 7, the juice is made to boil at 70‹C by production of a pressure of 55 cm. of mercury in the container by means of a suction pump 3, the vapours evolved from the juice pass into a column 10 having successive restrictions 14, which column is cooled by a water jacket 4, and the liquid condensed on the walls of 10 runs into a gutter 12 and down a passage 13 back into the bulk of juice, the sulphur dioxide being bubbled into, and absorbed in an alkaline solution in a vessel 11. With the apparatus of Fig. 2, juice previously treated with sulphur dioxide flows continuously in a thin layer over the outer wall 21 of a conical chamber 23 heated by the passage of steam therethrough, and the condensable constituent of the gases thus evolved from the juice is condensed upon the wall 24 of a water jacket 26 surrounding the conical chamber 23 and flows down this wall 24 to rejoin, at an outlet 29, the juice flowing from the wall 21 onto a sloping base 28.
Patent GB-694125-A (GB)
Title: Improvements in or relating to liquid level indicators
IPC: G01F23/292
Filed: 1950-10-24
Abstract: 694,125. Batteries. OLDHAM & SON, Ltd., and MARTIN, J. R. Oct. 12, 1951 [Oct. 24, 1950], No. 25918/50. Class 53. [Also in Group XVIII] The normal level of electrolyte in an electric accumulator, for example, is indicated by a cylindrical transparent element constituted by a tube 1, Fig. 1, which is fitted at its lower end with a conical plug 2 and, adjacent an enlarged head 5 at its upper end, is screw-threaded for engagement with an apertured neck 7 in the lid 8 of said accumulator, and either the upper face of the plug 2 or that of the head 5 is formed with an annular groove 9 or circular recess which has a diameter equal to that of the plug 2 at the optimum height level 10 of the electrolyte and is preferably filled with a red or yellow pigment. In a modification the plug 2 is of stepped form, Fig. 10, with conical parts 16, 18 and an intermediate substantially cylindrical part 17.
Patent GB-338612-A (GB)
Title: Improvements in the manufacture of screens for illuminated picture projection
IPC: G03B21/62
Filed: 1929-08-27
Abstract: 338,612. McCormack, W. E. Aug. 27, 1929. Projection screens comprise linen or like fabric bases which are first dyed a grey colour and are then made translucent by a varnish, gelatin, or other appropriate substance.
Patent GB-170182-A (GB)
Title: Improvements in and relating to temperature compensating device for weighing scales
IPC: G01G23/00
Filed: 1920-09-10
Abstract: 170,182. White, A. E., (Computing Scale Co.). Sept. 10, 1920. Temperature variations, compensating for.- In a weighing-scale wherein the load is balanced by springs, errors in the zero reading of the scale due to expansion or contraction of the springs under variations in temperature are neutralized by the expansion or contraction of an actuating- connection situated between the indicating- mechanism and the load support. The invention is shown as applied to a computing scale. The goods on the scale pan, platform, &c. act on the draw-rod 18, shackle 17, transverse member 16, links 15, and weighing-springs 14. The shackle 17 carries a transverse bar 19 terminating in actuating-members 20 and racks 21 for rotating the computing-drum 10. The actuating-members 20 are made of zinc or other expansible material of such a length as to compensate for the expansion and contraction of the springs 14 and thus maintain the zero position of the computing-drum constant. The transverse member 16 may be a thermostat of known type to compensate for changes in elasticity of the spring due to changes in temperature.
Patent GB-414235-A (GB)
Title: Improvements in and relating to the manufacture of cast metal pipes and like articles centrifugally
IPC: B22D13/10
Filed: 1933-07-18
Abstract: 414,235. Casting-plant. CARRINGTON, F. G., 1030, Christine Avenue, Anniston, Alabama, U.S.A. July 18, 1933, No. 26170. Divided on 414,217. [Class 83 (i).] Metal-pouring.-A centrifugal pipe-casting machine has a ladle d on a carriage d<1> for transporting it to the mould and means, on an arresting stop, for operating pouring mechanism, controlled from a point near the mould. The carriage is traversed by a motor d<5>, gearing d<6> and wheels d', arrested by stops d<27>, f<3> and drawn into position for pouring by catches d<30>, f<4>, the former being normally held up by its tail d<33> engaging a stop d<34> and moved by a hand-controlled hydraulic plunger d<29> or by a motordriven screw-and-nut mechanism and the latter operated by a lever f<6>. A plunger d<22> is then advanced by screw mechanism d<23> and a motor d<25>, as shown in Fig. 3, to operate rack d<21>, pinions d<19>, d<18>, lever d<16>, and chain d<14>, and thus tip the ladle d. The Provisional Specification describes a number of moulds each having an associated ladle and rail leading to the source of molten metal.
Patent GB-206318-A (GB)
Title: Improvements relating to carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1922-09-28
Abstract: 206,318. Overaasen, E. J. Sept. 28, 1922. Spray carburettors. - Alternative fuels are admitted by interconnected valves actuated through a spring snapmechanism either from a piston subjected on opposite ends to suction and exhaust pressure, or from a manuallycontrolled throttle valve, in such a manner that one valve closes and the other opens instantaneously. The suction conduit 1, Fig. 1, communicates with a cylinder 3 containing a piston 4 the rod 5 of which actuates through an arm 6 a spindle 14 to which is keyed another arm 7. This arm is connected through a spring 8 with a lever 9 which engages the heavy and light fuel valves 10, 11 respectively and turns about the spindle 14. With an increase of suction through the conduit 2 or of exhaust pressure through a valved conduit 12, the arm 7 is raised until the axis of spring 8 is above the centre of spindle 14, when the lever 9 is moved suddenly to lift valve 10 and lower valve 11. A valve 15 may control the movement of piston 4. In the form shown in Fig. 3, the throttle valve 17 actuated by rod 22 is connected by linkages 21, 20, 19 with the arm 7 which acts in a manner similar to that described above, except that 11 is the heavy fuel valve. The air inlet is provided with a non-return valve 25, and a stop 26 may keep the heavy fuel valve closed and the valve 10 open irrespective of the position of the throttle valve.
Patent GB-772932-A (GB)
Title: Improvements in and relating to induction furnaces operating in a rarified atmosphere
IPC: H05B6/26
Filed: 1955-09-14
Abstract: 772,932. Induction furnaces. VOGT, A. Sept. 14, 1955 [Sept. 17, 1954], No. 26298/55. Class 39(3) A crucible is enclosed within a furnace casing in which a partial vacuum is maintained, and an induction coil surrounds and extends along the crucible, and of the two current supply conductors feeding the coil one is earthed to the furnace casing and connected to the upper end of the coil nearest the crucible mouth, and the high tensioned conductor is connected to the opposite end of the coil remote from the mouth. The formation of arcing by the influence of metal vapour from the crucible mouth is thereby prevented, and only the lower part of the coil may be insulated.
Patent GB-606576-A (GB)
Title: Improvements in or relating to ovens for gas cookers
IPC: F24C15/00
Filed: 1945-10-09
Abstract: 606,576. Gas cooking-stoves. MAIN, Ltd., R. & A., and ADAM, A. J. Oct. 9, 1945, No. 26360. [Class 126] In a gas cooking-stove having a burner 17 extending across the back wall of the oven, the gases escape through a top flue 19 which opens at 21 into the oven near the front thereof and communicates with a rear outlet 20. The burner nipples 18 are inclined in a direction substantially parallel with an inclined lower portion 15 of the oven back wall 13 while a vertical baffle 14 projects above the bottom plate 11 to form a pocket for the burner which is open at its lower side to provide for the free access of air.
Patent GB-1522928-A (GB)
Title: Production of sintered steels
IPC: C22C33/02
Filed: 1977-06-23
Abstract: 1522928 High-phosphorus sintered steel HOGANAS AB 23 June 1977 [24 June 1976] 26398/77 Headings C7A and C7D Sintered steel compacts comprising 0À65-1À1 wt. per cent P and 0À05-0À6 wt. per cent C are obtained by compacting a mixture of Fe powder, P (as Fe-P), 0-0À6 wt. per cent graphite or C powder, and 0-1À5 wt. per cent lubricant (e.g. zinc stearate), and sintering at 950-1250C for 5-90 minutes in a reducing atmosphere such that the desired C content is obtained by dissolving the C in the powder and/or by taking up C from the atmosphere. The reducing atmosphere may comprise partially combusted hydrocarbons, or cracked ammonia.
Patent GB-142400-A (GB)
Title: Improvements in and relating to the construction of brushes
IPC: A46D3/00
Filed: 1919-10-28
Abstract: 142,400. Rees, S., Barclay, W. R., Coates, J., and Kean, T. P. Oct. 28, 1919. Bristles, fixing; stocks.-A brush comprises a metal stock with a series of endless grooves which are angularly disposed so as to spread the bristles cemented therein. In Fig. 1, the bristles are shown cemented in alternate grooves between the outside flange 1 and partitions 2, 3, 4, but they may be first bound with tape by stitching or adhesive. An open reinforcing-plate may be secured to the face of the stock to assist in holding the bristles. In the form shown in Fig. 7, the stock consists of a channelled " bristle-section " 21, which may be made in parts, fitted within a dished back-plate 25, and held by spring hooks 27 engaging eyes 26, or by spring-supported crosspins turned through a right angle after passing through slots in the bristle-section. The tufts may be forced out of the grooves when they require to be renewed, and the stock refilled.