baber/WOPTO huggingface dataset:
Patent GB-579995-A (GB)
Title: Improvements in or relating to pressure sensitive resistance devices
IPC: H02P9/22
Filed: 1944-02-25
Abstract: 579,995. Compression resistances. CLARK, C. H. W., and STEATITE & PORCELAIN PRODUCTS, Ltd. Feb. 25, 1944, No. 3425. Drawings to Specification. [Class 37] [Also in Groups XXXV and XXXVII] A compression resistance is formed from conducting ceramic bodies containing or consisting of titanium dioxide. A number of such conducting ceramic elements are so arranged that their contact resistance is an appreciable part of the total resistance, their dimensions being small in the direction of current flow. In one construction a quantity of granules of crushed conducting ceramic material, varying in size from fine powder to 1 millimetre across each granule, is contained within a porcelain tube of 6 millimetres bore and 15 millimetres long. One end is provided with a fixed brass terminal fitting, the other terminal comprising a brass piston slidable within the tube. In a resistance for carrying heavy currents, the elements are in the form of thin plates of conducting ceramic materials. The end plates may be coated with metal by spraying or firing-on, in order to obtain a good terminal contact. Metal plates may be interposed between some or all of the conducting ceramic plates in order to dissipate heat. The conducting ceramic material employed possesses the property that its specific resistance decreases as the applied voltage is increased. The variable resistance may be applied for maintaining a constant voltage with a variable speed dynamo [see Group XXXV], and to a circuit breaker for heavy currents [see Group XXXVII]. Specifications 467,113, [Group V], 467,190 and 579,994 are referred to.
Patent GB-668240-A (GB)
Title: Belts for personal wear and the manufacture thereof
IPC: A41F9/00
Filed: 1950-02-14
Abstract: 668,240. Belts for personal wear. RIPAMONTI, A. Feb. 14, 1950, No. 3711/50. Class 141. A belt comprises an intermediate member 1 of flexible material such as rubber or plastic having an integral enlargement 2 at each edge, and leathery or fabric strips 3, 4 secured to the faces of the member 1.
Patent GB-623226-A (GB)
Title: Improvements in or relating to statistical record cards
IPC: B42F3/00
Filed: 1947-02-07
Abstract: 623,226. Filing paper and like sheets; cheques. REMINGTON RAND, Inc. Feb. 7, 1947, No. 3727. Convention date, Feb. 9, 1945. [Classes 16 and 146 (i)] Statistical record cards are bound into a pad by a staple 12 passing through perforations 13 in the cards 11 which perforations are joined by a slit 14 to form a tongue 15 under the staple 12 so that a card can be removed or replaced. A card may be attached to a letter or a cheque to a voucher in the same way. To prevent damage to the bottom card when clamping the staple, a thin metal plate, suitably recessed, may be placed under the card to act as an anvil and is removed after the clamping.
Patent GB-808180-A (GB)
Title: Improvements in anti-set-off devices for printing machines
IPC: B41F23/06
Filed: 1956-02-07
Abstract: 808,180. Set-off preventing. SMYTHHORNE Ltd., and TAYLOR, H. W. Feb. 14, 1957 [Feb. 7, 1956], No. 3781/56. Class 100(2) A device for spraying powder on to printed sheets as they pass through a printing press so as to prevent set-off comprices a container for the powder, means for feeding air under pressure into the bottom of the container below the surface of the powder contained therein to agitate the powder and blow it to the top of the container, means for retaining or supporting a substantially constant quantity of powder at the top of the container, means for continuously circulating powder in the top of the container, and means for conveying powder from the top of the container to nozzles for spraying;the powder on to the printed sheets. The container 4 is closed at its upper end by a closure head 5 and at its lower by a perforated plug 6. An air inlet pipe 8 carried by the head 5 is disposed axially of the container and a reduced threaded portion thereof passes through the hole in the plug 6 and is engaged by a nut 7. The pipe 8 carries a cup-shaped air-deflector 9 which is held in abutment with the plug 6 by a radially slotted nut 10; the radial slot registers with a hole 11 in the pipe 8 and opens into deflector 9. A cylindrical member 12 also carried by the closure head is disposed concentrically with the pipe 8 and forms an annular passage therewith; the bottom of the member is open and a slot 13 is provided at the top of the wall. A frusto conical canopy 14 encircles the cylinder below the slot 13 and is suspended from the closure head by rods 15. A nozzle 16 is arranged eccentrically on the closure head to direct a jet of air at an angle on to the canopy 14 as at 17. The closure head 5 is connected at one end to a source of air under pressure by a pipe 19 and at the other to the powder-spraying nozzles (not shown) by a pipe 20. Conduits convey air under pressure to the inlet pipe 8 and the nozzle 16, while other conduits convey air to a venturi 25 under the action of which air is sucked from the interior of the container 4 through an outlet 26 to convey air and powder in suspension through the pipe 20 to the spraying nozzles. The container 4 is charged with powder to about the level of the dotted lines. In operation air travels down the pipe 8 and out of the hole 11 whence it is deflected up the annular passage formed by the cylinder 12 carrying with it some of the powder from the bottom of the container. The powder emerges from the slot 13 and falls on the canopy 14 whence it is blown about the upper part of the container by air from the nozzle 16 until it is sucked through the outlet 26. In a modification the cylinder 12 is dispensed with and the hole 11 opens directly into the powder which is blown up through an annular opening between the pipe 8 and the canopy 14. In either embodiment a valve may be provided whereby air under pressure is blown intermittently into the container 4.
Patent GB-681287-A (GB)
Title: Improvements in or relating to magnesium base alloys
Inventor: EMLEY EDWARD FREDERICK
IPC: C22C1/02
Filed: 1950-02-15
Abstract: In the production of Mg-base alloys containing both Zr and Li the Zr is introduced by means of a composition consisting of LiF and ZrF4 together with 12-70 per cent of LiCl by weight of the total composition, the LiCl being at least equal in weight to the LiF and between 1 and 3 molecular proportions of LiF being present for each molecular proportion of ZrF4.  The LiCl may be wholly or partly replaced by an equal weight of LiBr.  The composition may also contain up to 25 per cent of KCl, up to 10 per cent in total of one or more of the salts CaCl2, SrCl2, BaCl2.  Mg base alloys containing Zr and Li may be made by reacting the composition with molten Mg, puddling to effect introduction of Zr into the Mg, adding Li in metallic form and puddling again.  Alternatively the composition is reacted with molten Mg under such conditions as to prevent substantial incorporation of Zr in the Mg, the mixture is stirred to effect reaction, excess Mg and fluid salts are removed leaving a master alloy which may be then used to introduce the Zr into molten Mg. This master alloy consists of a fused anhydrous mixture having at least the following three phases: (1) a salt phase constituting between 1 and 20 per cent by weight of the alloy and consisting of MgF2 in amount between 22 and 53 per cent of the salt phase together with LiCl and LiF, the quantity of LiCl at least equalling that of the LiF; (2) a matrix phase consisting essentially of one or more of Mg, Zn, Cd, rare earth metals, Ag, Tl, Th, Cu, Bi and Pb; (3) a metallic phase embedded in phase (2) and containing Zr in a readily alloyable form, the Zr forming at least 5 per cent of the alloy.
Patent GB-1203726-A (GB)
Title: Improvements in or relating to the continuous coking of solid carbonaceous fuels
Inventor: SCHMALFELD PAUL
IPC: B05B7/14
Filed: 1968-01-25
Abstract: 1,203,726. Coking briquettes and pellets. METALLGESELLSCHAFT A.G. 25 Jan., 1968 [28 Jan., 1967], No. 4031/68. Heading C5E. In a process in which carbonaceous briquettes or pellets are coked in a shaft kiln 1, along with fine coal, by direct heating with fine coke as the heat transfer medium, fine coke produced in the kiln is recirculated through a heating zone 4 and a branch 10 of the fine coke is taken off the circulating stream and used as a component in the briquetting or pelletizing stage. Fine coke separated at 6 from evolved gases is also delivered to the branch 10. A bar grate 3 separates the coked briquettes from the fine coke. If fine caking coal is being used, it should be coked separately in a fluidized bed (12), Fig. 2 (not shown), and then delivered to the top of the kiln 1, and if the briquettes contain moisture or much volatile matter, they should be mildly preheated in a kiln (13), Fig. 3 (not shown), e.g. by distillation gases from a condenser 7 which have been reheated in a coke cooler 8, or by gases which have reheated the fine coke transfer medium. This coke may be reheated by partial combustion, as shown, or by burning another fuel, at 11. The kiln may comprise two superimposed sections each tapering towards the bottom and each having a gas outlet at the top, see Fig. 4 (not shown).
Patent GB-1486135-A (GB)
Title: Electric timepiece
IPC: G04G9/10
Filed: 1975-01-30
Abstract: 1486135 Electronic timepieces FUNAI ELECTRIC CO Ltd 30 Jan 1975 [18 July 1974 22 July 1974 (3) 26 July 1974] 4124/75 Heading G3T [Also in Division H3] An electronic timepiece energized by A.C. mains, uses the mains frequency as a timing reference and has means which, following a power supply interruption, warn that the time displayed is incorrect. The timepiece may be combined with a radio receiver and switches the receiver ON or OFF automatically at predetermined times to function for example as a waking alarm. The timepiece comprises a gas discharge time display tube 2, Figs. 2, 4, driven by an LSIC timing circuit 28 which receives timing reference pulses from power supply circuit 27. Following a power interruption colon dots remain unenergized until the time display is advanced to the correct time by manual operation of a switch 55. Alternatively the colon dots may be maintained continuously ON as in Fig. 5 arrangement (not shown), the colon dots being repeatedly switched ON/OFF when the correct time is being displayed. In another alternative Figs. 6 and 7 (not shown), illumination of the gas discharge tube 2 is prevented until the time advancing switch 55 is operated; in Figs. 8, 9 (not shown), a warning lamp or buzzer is opereated and in Figs. 10, 11 (not shown), an outage detection circuit resets the time display to 00:00 the reset being maintained by a charge on a capacitor until the time advancing switch is operated. In a further alternative, Fig. 19 (not shown), a shutter is moved across the display in the event of mains failure. Interference with the radio by the clock is reduced by enclosing the clock unit in a metal box as in Figs. 12, 14 (not shown), the display tube being viewed through a metallic mesh, or a light penetratable shield in the form of a coating or film.
Patent GB-1241723-A (GB)
Title: Yarn tensioning device for a knitting machine
IPC: B65H57/12
Filed: 1969-01-24
Abstract: 1,241,723. Knitting machines. E. MAYER [trading as MAYER & CIE MASCHINENFABRIK], 24 Jan., 1969 [27 Feb., 1968], No. 4211/69. Heading D1C. A yarn tensioning device 2 is supported by a holder 1 having several input openings 8 upon one of which an elongated guide 7 is fitted. Yarn is thereby prevented from snarling on the holder. The guide is preferably conical so that yarn wrapping round it slips off easily.
Patent GB-541209-A (GB)
Title: Improvements in and relating to record card controlled statistical machines
Filed: 1940-03-06
Abstract: 541,209. Statistical machines. THOMAS, A., and EXCELL, A. W. March 6, 1940, No. 4245. [Class 106 (i)] In a record-controlled statisical machine including pairs of rolls which feed the records through a sensing mechanism, the feed rolls and sensing mechanism are divisible in the plane of the record path so that the part of the mechanism and the feed roll of each pair lying on one side of this path may be moved to allow the record to be removed from the feed rolls. The invention is described as applied to the statistical machine described in Specification 541,210, in which two sensing pinboxes of the kind forming the subject of Specification 401,012 are used. One of these boxes is shown in Fig. 3A, and comprises verticallyreciprocated pin-plates 1, 2 in which are mounted the pins 4. Beneath the pins are upper and lower stationary pin plates 30 between which record cards are fed by rolls 32, 31, and 32a. Above the pins 4 are transmission elements 36 depending from a fixed perforated plate 35 and passing through slots in a reciprocating shutter 44, these elements acting on transmission rods 41 which are slidably mounted in fixed perforated plates 40, all these parts being as described in Specification 401,012. According to the present construction, the pin-box mechanism, apart from the lower pin plate 30 and lower rolls 32, 31, 32a, is carried in a frame 500, 501, Fig. 7, which is pivoted on stub shafts 504, 505 so that it may be raised as shown to give access to the record lying on the lower pin plate 30. The shaft 19 which carries the cams by which the pin-plates 1, 2 and the shutter 44 are reciprocated is driven through skew gears from a shaft 473, which is rotated from the main shaft 73 through gears including an idler gear 471 mounted on the stub shaft 504, so that the drive is not affected when the frame 500, 501 is raised. The frame is held in the operative position by two latches each formed by a plunger 520, Fig. 8, slidably mounted on a screw 521 projecting from a fixed plate of the machine, a spring 522 urging it inwardly, to engage an aperture in a block 523 secured to the frame. To ensure that the pinbox is raised only when the pins are raised clear of the record locking means are provided for one or both plungers 520, consisting of a sliding latch 525 having an offset nose 528, which stands in front of a pin 529 on the plunger when the latch is lowered by a pin 524 on the rod 8 by which the pin plates 1 and 2 are vertically reciprocated. The pin-boxes are counterbalanced by means (not shown) comprising chains passing over sprocket wheels on a shaft carried by lugs extending backwardly from the frame 500, 501, one end of each chain being anchored and the other attached to a spring. The invention may be applied to a tabulating machine such as that described in Specification 526,762. Specification 396,806 also is referred to.
Patent GB-759850-A (GB)
Title: Improvements relating to electrically heated soldering irons
IPC: B23K3/03
Filed: 1953-02-16
Abstract: 759,850. Soldering irons. ADAMSON, R. A. Feb. 16, 1954 [Feb. 16, 1953], No. 4250/53. Class 83 (4). In an electrically heated soldering iron in which the bit 13 has a shank 14 fitting within a tube 6 of. material of good heat conductivity such as stainless steel surrounded by the heating element 9, a sleeve 14a of material resistant to tinning, such as stainless steel, is interposed between the shank 14 and the tube 6. The bit 13 is secured by a cotter pin or bolt 16 of nickelchrome or stainless steel wire having a bentover head 17 located in a transverse recess in the tube 6. A rod 7 connects the tube 6 to the handle and the tube 6, rod 7 and heating element 9 are encased in a winding 12 of iron wire.
Patent GB-747558-A (GB)
Title: Improvements relating to the sorting and counting of packages
Inventor: HIGGINS BERTRAM GEORGE
IPC: H01J40/14
Filed: 1953-02-16
Abstract: 747,558. Sorting packages photo-electrically. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 24, 1954 [Feb. 16, 1953], No. 4252/53. Class 40 (3). Packages on a conveyer are sorted by producing for each package a group of electrical impulses proportional in number to the length of the package, counting the impulses produced in each group and counting the undivided groups of impulses having the same number. As shown, the packages 2, 3 are carried on a conveyer 1 and the pulses are produced by a chopper plate 6 driven by the conveyer and interrupting the light incident on a photoelectric cell 7. The arrival of a package at a receiving station is detected by a second photoelectric cell 9 which then opens a " gate " so allowing the pulses produced by cell 7 to pass to an electron counter comprising stages 13, 14, 15 and at the same time holding the shield grids of thyratrons T1 to T5 negative. The counter may be as. described in Specification 704,816, [Group XIX], and comprises three stages arranged on the decimal system so that the count can be one of three figures, each impulse representing a conveyer travel of one millimetre. All stages other than the units stage are provided with selector switches which may be set to give three or more numbers representing three possible sizes of package. In operation when the number of pulses representing the smallest package has been counted the counter operate a coincident circuit 16 to move the discharge path of an electronic counter tube 17 from zero cathode to cathode number one. The cathode load develops a voltage which conditions a first thyratron T1 which does not fire until the package has passed cell 9 when the gate 11 closes and the negative potential is removed from the thyratron shield grid. If this does not happen the counter continues to count the pulses until the next setting of the counter circuit is reached when coincident circuit 16 moves the discharge path in tube 17 to cathode T2 restoring thyratron T1. If now the end of the package passes cell 9 thyratron T2 fires operating its counter C2. Relay 19 is also energized and contacts with relay 21 to remove the anode potential from the thyratrons. A time delay relay 23 is provided to prevent anode potential being applied to the thyratrons until they have been heated. The Specification states that the thyratrons may be used to sort the article by impressing their output signals on a magnetic disc driven from the conveyer so as to operate on the electrohydraulic device by means of a pick-up situated around the disc, thus introducing a time lag to allow the article to reach the appropriate receiving bin.
Patent GB-917706-A (GB)
Title: Burner
IPC: F23D11/10
Filed: 1959-02-06
Abstract: 917,706. Burners. PEREDI, K. Feb. 6, 1959 [Feb. 7, 1958; Feb. 10, 1958; Feb. 21, 1958; Oct. 6, 1958; Oct. 11, 1958], No. 4342/59. Class 75 (1). A method of burning fuel oil comprises a first stage of burning the oil in atomized state with insufficient air so that the oil is decomposed at a temperature between 600‹ C. and 1300‹ C. into a gas, and a second immediately subsequent stage of burning the uncooled gas. In the burner of Fig. 1 oil is delivered by a connection 3 and air or steam by a connection 4 to an atomizer 1 and the atomized oil is sprayed into a cylindrical gasifying chamber 7. Primary air is delivered by a connection 5 to a housing 2 surrounding the atomizer and is directed into the atomized oil by exchangeable bent nozzles 6 which are rotatable on their own axes and are slidable forwardly and backwardly. The nozzles may be bent at different angles and may be of different lengths; they may be operated individually, or together, by gears 9 meshing with a gear ring 10. The gasified oil is supplied with secondary air at the outlet of the gasifying chamber 7 by adjustable nozzles 18 and combustion is completed in a burner block 26. In a modified burner construction the primary and secondary nozzles are replaced by rings having inclined apertures through which the air passes. In further burner constructions a combustible gas is discharged into the atomized fuel at the inlet end of the gasifying chamber or into the gasified fuel at the outlet end of the gasifying chamber or into both ends of the gasifying chamber. Figs. 3, 4, 5, 6 (not shown) show two or more burners constructed as shown in Fig. 1 discharging into a furnace inlet, the burners being disposed either parallel to or inclined to each other.
Patent GB-191303-A (GB)
Title: Improvements relating to surface grinding machines
IPC: B24B41/047
Filed: 1922-02-14
Abstract: 191,303. Lumsden, T. Feb. 14, 1922. Flat extended surfaces, surfacing.-A flat surface is ground on the work, which is supported on a table 46, by the face of a grinding-wheel 10. The wheel spindle 11 is carried by a ram 12 mounted eccentrically of a revoluble carrier 13 which is supported by a housing 14 on a slide 15 movable laterally on a bed 16. The carrier is revolved in either direction, or oscillated, by means of a worm-wheel 22 and a worm 21 driven, through gearing 24, 25, by an open belt 26, or a crossed belt 27. The spindle 11 is driven by a chain 17 engaging a sprocket wheel 33, Fig. 4, rotatably mounted on a non-rotating shaft 18, the wheel 33 having a sleeve 34 slidable within a sprocket wheel 35 and driven therefrom by a key 36; gearing other than chain-gearing may be employed. The wheel 35 is driven by a chain 19 or other gearing from an electric motor 20. In order to adjust the grinding-wheel to or from the work, the shaft 18 is moved axially by a nut 28, Fig. 4, mounted in a fixed bearing 38 and rotated through gearing and shafts 43, 44 by a hand-wheel 45. The shaft 18 is freely supported in the carrier 13 and transmits its sliding movements to the ram through a lug 32 thereon. The machine may be arranged with the grinding spindle vertical, and the work table may be fixed, rotary, or reciprocatory.
Patent GB-910922-A (GB)
Title: Nitrates of dextranic acid
Inventor: NOVAK LEO J
IPC: C08B37/02
Filed: 1959-02-07
Abstract: The invention comprises nitrates of dextranic acid which may be produced by reacting dextranic acid with fuming nitric acid in the cold, preferably at about -10 DEG C., and the mixture is kept cold until an acid insoluble nitrate of dextranic acid precipitates. The precipitate is separated and washed to remove residual nitric acid. The filtrate is adjusted to pH 6 by the addition of an alkali metal hydroxide and the solution is concentrated by heating until crystallization of alkali metal nitrate is initiated and the solution is dialysed to recover the acid soluble nitrate of dextranic acid. When desired the acid insoluble nitrate may be partially de-nitrated by treating it with alkali in the presence of a water-miscible aliphatic alcohol.  The dextranic acid starting material may be obtained by introducing the dextransplitting enzyme produced by the mould Aspergillus Wentii p  into an aqueous solution of high molecular weight dextran and allowing the hydrolysis to proceed to the desired extent whereby dextranic acid is produced as a byproduct. The hydrolysed dextran can be precipitated from the solution at pH 1,0 to 5,0 by addition of a water-miscible aliphatic alcohol, leaving the dextranic acid in solution from which it can be recovered by adjusting the pH to within the range 8,0 to 13,9 with 50% methanolic sodium hydroxide to precipitate sodium dextranate, redissolving the salt in water at neutral or acid pH, adding an equal amount of lower aliphatic alcohol and adding alkali to a pH of about 12 to precipitate the dextranic acid.
Patent GB-588745-A (GB)
Title: Improvements relating to hydraulic power equipment
IPC: F15B1/12
Filed: 1945-02-21
Abstract: 588,745. Reciprocating pumps. ELECTROL, Inc. Feb. 21, 1945, No. 4393. Convention date, May 20, 1944. Drawings to Specification. (Class 102 (i)] [Also in Group XXIX] A hydraulic accumulator comprises outer and inner casings, an extensible member therebetween separating air and liquid chambers, and a pump as described in Specification 587,380 mounted within the inner casing.