baber/WOPTO huggingface dataset:
Patent GB-357379-A (GB)
Title: Improvements in or relating to anti-fading receivers employing thermionic valves
IPC: H03G1/04
Filed: 1930-10-02
Abstract: 357,379. Valve amplifying circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Oct. 2, 1930, No. 29524. Convention date, Oct. 15, 1929. [Class 40 (v).] In a wireless receiver the effects of fading are avoided by varying the amplification of a valve or valves by and in accordance with the input signal strength, the regulation being effected by a rectifier whose output is utilized to control the heating current of the valve or valves. The Figure shows a rectifying valve 1 controlling the grid bias of an indirectly heated valve 3 the anode current of which serves to heat the filament of amplifying valve E. In modifications a magnetion, Fig. 2 (not shown), and a relay, Fig. 3 (not shown), are operated by the output of the rectifier and serve to control filament heating. The relay is arranged to insert into or cut out resistance from the heating current circuit of the valve or valves.
Patent GB-712539-A (GB)
Title: Improvements in or relating to apparatus for inspecting linear-dimensions of work-pieces
Inventor: LOXHAM JOHN
IPC: G01B5/207
Filed: 1951-12-17
Abstract: 712,539. Linear-dimension gauges. SIGMA INSTRUMENT CO., Ltd. March 9, 1953 [Dec. 17, 1951], No. 29548/51. Class 106 (2) Apparatus for inspecting the linear-dimensions of work-pieces comprises an indicating device 23 for co-operating with a plurality of gauging fixtures 25 each having a reference anvil and a moving anvil and being severally mounted upon a turret 24 rotatable relative to the indicating device 23 to cause any selected fixture 25 to co-operate therewith for gauging a corresponding dimension, the scale plate of the indicating device having depicted thereon a representation 33 of the work-piece showing the several dimensions to be inspected with a corresponding characteristic index reference 1-10 and also having marked thereon tolerance zones 34-37 for co-operating with the indicating needle 29, each zone having a characteristic colour or shading for identification, there being on each fixture means 40 showing the reference corresponding to the dimension the fixture is designed to gauge and the colour or shade 39 corresponding with the appropriate tolerance zone. The turret 24 is adjustably fixed to a plate 22 with its axis approximately perpendicular thereto so that' it can be rotated to bring any desired fixture 25 into register with an actuating plunger 26 of the indicating device 23 also supported by the plate 22. The scale plate or a segmental portion 32 thereof is removably secured by screws 50 and a window 27 is clamped by screws 31. Each fixture has removably secured thereto a strip 39 coloured to correspond with one of the tolerance zones 34 to 37 and superposed on each strip 39 is a removable transparent strip 40 bearing a reference numeral corresponding to the dimension 1 to 10 that is to be measured by the fixture. Specification 712,540 is referred to.
Patent GB-509734-A (GB)
Title: Improvements in or relating to coaster hubs for cycles
IPC: B62L5/04
Filed: 1938-10-12
Abstract: 509,734. Coaster hubs. NOWIGK, H. Oct. 12, 1938, No. 29597. Convention date, Oct. 13, 1937. [Class 136 (ii)] In a free-wheel and back-pedalling brake hub for cycles, of the type in which the driving- clutch consists of rollers or balls mounted in a guide ring or cage and adapted during driving to be wedged against the hub by inclined surfaces on the driver, the rollers or balls are retained at other times in their inner or inoperative position in the following manner, in order to avoid jamming, e.g. when wheeling the cycle backwards. The driver c carrying the sprocket ring d is provided with a number of inclined surfaces g, Fig. 3, separated by radial projections h and adapted on forward rotation to wedge rollers i against the hub shell r. The rollers i are mounted in a cage k, Figs. 1 and 5, which is formed with triangular teeth l co-operating with similar teeth m on the brake-expanding cone n. The projections h are provided with inclined surfaces s cooperating with similar inclined surfaces t on the cage k, whereby on forward driving the cage is moved axially towards the brake cone n, while on free-wheeling and back-pedalling, the cage k is moved to the right by the cone n and is simultaneously rotated backwards until the rollers i are wedged between the lowest parts of the inclined surfaces g and the cage k.
Patent GB-1366441-A (GB)
Title: Preparation of antioxidant
IPC: C07C43/23
Filed: 1972-06-23
Abstract: 1366441 Preparation of butylated hydroxyanisole EASTMAN KODAK CO 23 June 1972 [23 June 1971] 29614/72 Heading C2C Butylated 4-hydroxyanisole having the 3- isomer (i.e. 3-t-butyl-4-hydroxyanisole) present in a concentration of greater than 95% by weight, is prepared by adding an aqueous solution of lithium, sodium, potassium, rubidium, or caesium hydroxide over one to three and a half hours to an agitated system of t-butylhydroquinone and dimethyl sulphate in an organic solvent at 30‹ to 50‹ C.
Patent GB-1335159-A (GB)
Title: Electronic component
IPC: H05K5/00
Filed: 1972-06-26
Abstract: 1335159 Capacitors MATSUO ELECTRIC CO Ltd 26 June 1972 [19 July 1971] 29758/72 Heading H1M [Also in Division H2] Flat terminal leads 4 extending from opposite end faces of the body of an electronic component 1, e.g. a solid electrolytic capacitor, are bent so as to face the bottom surface of the component. The space left when the component is soldered to a printed circuit board permits excess solder flux to be readily washed away, and a recess (7) in the body (Fig. 5, not shown) may enhance this.
Patent GB-504631-A (GB)
Title: Improvements in and relating to pile wire operating mechanism for weaving looms
IPC: D03D39/10
Filed: 1937-11-01
Abstract: 504,631. Pile-fabric looms; converting rotary into reciprocating motion. NEEDHAM, V. E. Nov. 1, 1937, No. 29766. [Class 142 (ii)] [Also in Group XXIV] In a pile wire mechanism for weaving looms, the pile wires are attached to the free ends of arms disposed on two shafts which are reciprocated longitudinally and oscillated angularly. Cams H, J, Fig. 2, rotated intermittently by ratchet gear, impart the required movement to the shafts D, E. The ratchet gear comprises a ratchet wheel having teeth Q<1>, Fig. 1, with which a pawl P', carried by a lever P, can engage. The lever is oscillated by a rod P<2> connected to a crank on a shaft in the loom. A retaining pawl T prevents reverse movement of the ratchet wheel and another pawl V stops the ratchet wheel positively at the end of each forward movement by engaging notches R<1> in a locking wheel fixed to the ratchet wheel. The pawl V is released to permit rotation of the ratchet wheel by the inclined end of the lever P engaging a roller V<2> on the pawl. The intermittent rotation of the ratchet wheel is transmitted to the cams H, J by a chain drive W<2> and bevel wheels K, each oscillation of the lever P turning the cams through half a revolution. The shafts D, E are reciprocated by the cam H, through levers L having forked ends engaging projections on the shafts and carrying rollers H<2> engaging the cam groove H<1>. The shafts are oscillated by the cam J which has a rise J', arms N on the shafts having cam followers N<1> held in contact with the cam by springs N<5>. Arms A<1>, B<1>, mounted on the shafts D, E, respectively, carry pile wires A, B for each shed C. The operative end of each pile wire is slidably supported by being passed through a hole in the end of its arm, a resilient bowed portion being formed by fixing the other end of the wire to an intermediate point on the arm. During one half-revolution of the cams, the pile wires A carried by the shaft D are withdrawn from the shed and re-introduced behind the wires B, the wires B being similarly moved during the next half-revolution. To produce patterned fabric, jacqnard or pawlbluffing mechanism may be employed to control the rotation of the cams.
Patent GB-533482-A (GB)
Title: Deflation indicating means for twin tyres
IPC: B60C23/00
Filed: 1939-11-10
Abstract: 533,482. Actuation of switches. DUNLOP RUBBER CO., Ltd. Nov. 10, 1939. No. 29819. Convention date. Nov. 12, 1938. [Class 38 (v)] [Also in Group XXXIV] A device for indicating pressure-differences in twin tyres comprises a deformable metal diaphragm 3, forming a common wall of two chambers 4, 5 communicating with the individual tyres of a twin unit, normally spaced from a pair of fixed contacts 8. 9 in a circuit which includes a voltmeter 14 and, as shown, an audible signal 18. The contact 9 is connected directly to the meter 18, a resistance 15 being included in the line from the contact 8, so that the needle of the meter is deflected to different positions such as 16, 17 according to which tyre is defective. Fig. 3 illustrates a dashboard panel whereon discs 24 fitted to the meter needles are arranged to swing over windows 22 depicting the various tyres on a back-axle represented at 20. The discs 24 may be perforated and covered with coloured material for illumination by lamps 23.
Patent GB-845824-A (GB)
Title: Improvements in apparatus for and method of removing impurities from a vapour mixture such as carbon dioxide vapour containing other vapours
Inventor: HOUGEN OLAF ANDREAS
IPC: C01B32/50
Filed: 1958-09-19
Abstract: A method of purifying a vapour such as carbon dioxide in a vapour mixture containing vapours of at least two other and mutually soluble compounds such as water and alcohol having widely different solidification temperatures so that one compound substantially lowers the solidification temperature of the other compound when the two materials are <PICT:0845824/III/1> in solution, comprises the steps of increasing the proportion in the vapour mixture of the compound having the lowest solidification temperature, and then cooling the vapour mixture to a temperature substantially lower than the solidification temperature of the mutually soluble compound having the higher solidification temperature, condensing the said other vapours of both compounds in said vapour mixture while utilizing the original low temperature solidifying compound of said vapour mixture as enriched, to permit such low temperature condensation while preventing solidification of the condensate with resulting accumulation on cooled surfaces, continuously refluxing substantially all of the condensate to the vapour mixture for use in increasing the proportion of the lower temperature solidifying compound therein, and withdrawing the cooled uncondensed vapour. In a preferred embodiment used to remove the impurities from the fermentation vapour mixture of a brewing process, CO2 containing water vapour, alcohol, aldehydes and esters is led via a pipe 21 from a fermentation tank 20 to a separator 22 where suspended solids and liquids are deposited.  The vapour mixture then passes through a line 24 into a blower 25 and after passing through a heat exchanger 26 it leaves through pipe 30 at about 80 DEG F. and is then cooled in a heat exchanger 31 to about 320 DEG F. by a medium such as ethylene glycol.  The vapours then pass to a fractionating column 39, in which the vapour mixture becomes enriched with alcohol, and leaves through an outlet pipe 50 and enters a horizontal heat exchanger 51 in which it can be cooled to -45 DEG F. without forming ice.  Fog which may be formed is removed by a trap 55 and purified CO2 passes to a compressor 58 which is compressed to 75 p.s.i.a.
Patent GB-882042-A (GB)
Title: Improvements in or relating to core holders for use in multitrack erasing heads
IPC: G11B5/29
Filed: 1960-08-31
Abstract: 882,042. Magnetic recording &c. heads. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 31, 1960 [Sept. 3, 1959], No. 30036/60. Class 40 (2). A magnetic head structure, particularly for the double erasing head in " 4-track " tape recorders, incorporates a moulded resin member, Fig. 2, which comprises a cruciform portion forming the gap spacers 3 and the inter-head spacers 2 to which are assembled two pairs of ferrite cores 9, one of each pair carrying a winding 10. Staggered blade portions 5 and a handle 8 support the assembly in a mould for encapsulation. The outer surface of the head may be ground and the finished head mounted to the recorder with reference to the recess in the handle 8, or the handle portion may be removed.
Patent GB-802345-A (GB)
Title: Improvements in and relating to fuel oil compositions
IPC: C10L1/22
Filed: 1956-10-02
Abstract: A fuel oil composition comprises a hydrocarbon distillate fuel oil and a minor proportion of a compound of formula R2NCH2C(R1)2CHO, wherein R is a C1-C22 aliphatic hydrocarbon radicle (at least one R radicle having 8-22 carbon atoms) and R1 is hydrogen or a C1-C4 alkyl radicle.  The fuel oil may be gas oil, furnace oil, burner oil, diesel fuel oil or kerosene and has components normally distilling from about 300 DEG  F. to about 700 DEG  F. It may be a cracked oil or a blend of cracked and straight run oils.  The compound of the above formula may be alpha-dimethyl-beta-dicocoamino-propionaldehyde or the corresponding di-tallow derivative, the coco and tallow radicles being the alkyl radicles corresponding to those present in coconut oil fatty acids and tallow fatty acids respectively.  A list of alternative radicles R and R1 is given.  In the examples, alpha-dimethyl - beta - dicocoamino - propionaldehyde is added to a domestic furnace oil which is a catalytically cracked oil or a blend of catalytically cracked and straight run oils.ALSO:Fuel oils (see Group III) contain compounds of the formula R2NCH2C(R1)2CHO, wherein R is a C1-C22 aliphatic hydrocarbon radicle (at least one R radicle having 8-22 carbon atoms) and R1 is hydrogen or a C1-C4 alkyl radicle.  A list of suitable radicles R includes alkyl radicles, octadecenyl, octadecadienyl, octadecatrienyl and mixtures of hydrocarbon radicles as derived from tall oil, tallow, soybean oil, coconut oil, cottonseed oil and other animal and vegetable oils.  The preferred compounds are alpha-dimethyl - beta - dicocoamino - propionaldehyde and the corresponding di-tallow derivative, the coco and tallow radicles being the alkyl radicles corresponding to those present in coconut oil fatty acids and tallow fatty acids respectively.  In the preparation of the compounds, aqueous formaldehyde, a solution of secondary amine R2NH (for example in denatured alcohol), and an aldehyde HC(R1)2CHO (R and R1 having the significance indicated above) are mixed together, refluxed, settled and the aqueous layer then discarded.
Patent GB-648085-A (GB)
Title: Improvements relating to the burning of cement, lime, ores and the like
IPC: F27D99/00
Filed: 1948-11-18
Abstract: 648,085. Rotary kilns. EVERY, C. E. (Smidth & Co., Aktieselskab, F. L.). Nov. 18, 1948, No. 30040 [Classes 51(i) and 51(ii)] A rotary kiln 1 for the burning of cement, lime &c. extends into a stationary discharge casing 2 into which projects the burner 8 of a removable refractory-lined cylindrical combustion chamber 5 supplied tangentially with pulverized fuel and air through a pipe 6 and provided with an offtake 7 for molten ash and slag. Combustion is completed at the burner 8 around which circulates secondary air, and the primary air may be drawn from the kiln itself or the cooler 4. Solidified ash &c. may be ground up and incorporated with the batch material. A modification shows the invention applied to a rotary kiln with planetary coolers, air from the kiln passing through a fuel pulverizer from which a fan delivers the fuel/air mixture to a removable combustion chamber and in another modification the discharge casing and combustion chamber form a single movable unit.
Patent GB-460061-A (GB)
Title: Improvements in or relating to sheet materials
IPC: B44C1/24
Filed: 1935-11-01
Abstract: Flexible sheets of cellulose acetate or other cellulose ester or ether are pleated uniformly to give a product suitable for ornamenting generally, and in particular for use in lampshades, as coverings for flower pots, hoods for flowers, hat bands, brims, &c., bracelets, eyeshades, curtains, garters, belts, receptacles and wrappers, ribbons, collars, holders and tabs.  Thus, a blank may be bent into tubular form, the edges cemented, and the tube so obtained stretched over a wire frame to form a lamp shade, being secured to the frame by cement or by tape, &c.  Two or more sheets may be superimposed, the pleats of the several sheets being of the same or different sizes and arranged parallel to one another or at an angle; and the sheet material may be laminated with paper, silk or other fabrics, or celluosic sheet material, in particular, with a film or foil having an embossed cr<\>zepe or other design. Similarly another material may be applied as an edging to the pleated sheet.  The pleated sheet may be stretched into a fan-shaped form and then cemented to glass for placing behind wall lights.  The pleated sheet may be lacquered varnished or coloured either all over or in designs, and effect materials may be included in its composition.  During pleating, the material is preferably protected by sheets of paper, &c., and to assist pleating, the material may be softened by heat or solvents; after pleating, the material while held in a tightly-pleated condition is advantageously cooled to set the pleats. Specification 308,659, [Class 121], is referred to.
Patent GB-484494-A (GB)
Title: Improvements in or relating to lime-zeolite water-softening processes
IPC: C02F5/02
Filed: 1936-11-05
Abstract: The raw water is first treated with a slight excess of lime over that theoretically required to remove temporary hardness and is then passed over sulphonated coal, produced by treating coal (including anthracite but not lignite) with a sulphonating agent such as sulphuric acid or chlorosulphonic acid until base exchange properties have been developed, this step removing free lime and calcium carbonate: the water is finally passed over a zeolite to remove the permanent hardness.  The sulphonated coal is preferably used in the 'spent' condition, i.e. after it has been used for softening water up to the point of its thorough exhaustion with calcium and magnesium salts.  The sulphonated coal may be regenerated by treatment with dilute acid or by passing water containing carbon dioxide there over this water then passing on for the lime, sulphonated coal and zeolite treatments. Specifications 450,575 and 455,374 are referred to.
Patent GB-1474802-A (GB)
Title: Method of making a lead-storage battery and the battery itself capable of activation by the addition of electrolyte
IPC: H01M10/08
Filed: 1974-07-08
Abstract: 1474802 Lead-acid battery GOULD Inc 8 July 1974 [9 July 1973 (2)] 30217/74 Heading H1B Crystal growth between the formed negative and positive plates of a dry-charged lead-acid battery which may occur before activation of the battery by the addition of electolyte thereto, is prevented by treating the plates with a metal sulphate soluble in sulphuric acid or water. The preferred sulphate is of sodium, other suitable sulphates being of K, Li, Mg, Ca, Zn, and Al; additionally, the sulphates of Be, Ce, In, La, Sn, Tl, Zr and Rb, may be used. In one method of making the battery the metal sulphate is added to the formation electrolyte, viz. H 2 SO 4  solution of S.G. in the range 1À020- 1À100, the metal sulphate being present in an amount of about 2 per cent by wt. The electrolyte is subsequently removed by inverting the battery. In a preferred method, the formation electrolyte does not contain the metal sulphate and after removal of this electrolyte the battery is filled with a H 2 SO 4  rinse solution of S.G. in the range 1À200-1À400, this solution containing 0À05-5 per cent by wt. of the metal sulphate. The plates and separation are soaked for about 10 minutes in the rinse solution which may be stirred and the solution is then removed by inverting the battery. In another method the metal sulphate is dissolved in water in an amount 0À05-5 per cent by wt. and the battery is filled with this solution either after draining the formation electrolyte or after draining the rinse solution, the water being subsequently drained from the battery. Whatever method is used for adding the metal sulphate the battery is subsequently sealed in a manner such that gas-pressure build-up within the battery may be vented and slight ingress of air into the battery is permitted. The very small amount of oxygen permitted to enter the battery during its shelflife tends to equalize the self-discharge of the positive and negative plates and reduces the tendency for the initial battery performance to be positive plate limited. The vent aperture may be circular in shape and have a diameter of 0À0005-0À006 inch. A venting arrangment, Figs. 4, 5, comprises two groups 35 of three vent caps each having a main body 36 formed with normal labyrinth passages (not shown) for breathing of the battery after it has been made operational. During the battery shelf-life the cell apertures 34 in the battery lid 33 are sealed by plugs 38 each having a small vent aperture 40 (referred to above) and the caps 35 are retained by flanges 42 cooperating with upstanding portions 43 on the seal plugs 38. The battery is brought into operation by removing the plugs 38 by tabs 41, filling with electrolyte, and engaging the cap flanges 42 in the apertures 34. In a modified venting arrangement (Figs. 7-9, not shown) the small vent aperture is replaced by a small groove formed in the outer surface of the side wall of the seal plug.
Patent GB-509969-A (GB)
Title: Improvements in and relating to joint structures
IPC: F16C11/06
Filed: 1938-10-19
Abstract: 509,969. Universal joints. POLLAK, J. E. (Thompson Products; Inc.). Oct. 19, 1938, No. 30260. [Class 65 (ii)] A universal joint having two pairs of bearing surfaces, such as 12, 16 and 18, 22, Fig. 1, to accommodate respectively tilting and rotational movements of the stud 19, is provided with separate spring or resilient members such as 40, 42 to maintain each pair of surfaces in contact. A collar 23 may be provided to prevent withdrawal of the stud and a sleeve 18 is press-fitted into the bore of the seating element 15. Lubrication grooves 33 cut in the seating element help to prevent rotation of the sleeve 18. The stud 19 may be formed from a cylindrical rod by extrusion and upsetting operations.