baber/WOPTO huggingface dataset:
Patent GB-686940-A (GB)
Title: Improvements in or connected with dolly-operated electric switches
Inventor: MARR GUSTAVE EDWARD
IPC: H01H23/16
Filed: 1950-11-27
Abstract: 686,940. Tumbler switches. MARBOURN, Ltd. Nov. 2, 1951 [Nov. 27, 1950], No. 28933/50. Class 38 (v) The switch (which may be combined with a socket, as shown) comprises an insulating dolly 13 pivoted at 12 and having a cam projection 16 engaging the upper surface of slidable insulating block 1 which is normally urged upwards by a spring 4. In the position shown, the projection 16 engages a flat face 5 on the block 1 which is thereby depressed against the action of the spring 4. In its other position, the projection 16 lies in a recess 6 in the block, which now occupies its upper position, Fig. 3 (not shown). The block 1 co-operates with two contact springs 17, 18 which are urged upwards by springs 27 and cooperate with fixed contacts 26. As shown, the switch is closed when the block is in its upper position, but the contact arrangement may be such that the switch is open when the block is in this position.
Patent GB-694452-A (GB)
Title: Improvements in and relating to injectable iron preparations
Inventor: NOTTON HAROLD EUGENE FREDERICK
IPC: A61K9/00
Filed: 1950-11-27
Abstract: A colloidal injectable iron preparation comprises the product produced by mixing a precaramelized sugar or sugar mixture, a solution or suspension of a ferric compound, and a suitable alkali to ensure that the pH value of the preparation is 7.5 or over.  The sugar may be sucrose, dextrose, fructose, mannose, arabinose, lactose, galactose, raffinose, rhamnose, sorbose, xylose or any mixture thereof, and the caramelization may be effected by heating the sugar from 180 DEG -205 DEG  C. at a reduced pressure of 1-60 mm. of mercury until it has lost between 10-15 per cent of its original dry weight.  Specified ferric compounds are (a) soluble ferric salts such as the chloride, nitrate, sulphate or acetate, and double salts such as ferric ammonium sulphate, (b) ferric oxy-salts preparable by dissolving ferric hydroxide in a solution of one of the above specified ferric salts, dialysed iron solution B.P.C. and freshly prepared and washed hydrated ferric oxide, and (c) any ferric compound capable of yielding ferric hydroxide when rendered alkaline in the presence of caramel, provided no chemically or therapeutically disadvantageous substance is simultaneously produced or introduced. Suitable alkalis are sodium, potassium, ammonium, lithium, magnesium and calcium hydroxides, sodium and potassium carbonates, sodium acetate and monoethanolamine.  Either the caramelised sugar or the final product may be dialysed against distilled water to make the final product iso-osmotic with human blood.  The preparation may be mixed with a water-miscible solvent such as methanol, ethanol or acetone to precipitate the colloid which may be separated and dissolved in distilled water.
Patent GB-158739-A (GB)
Title: Improvements in or relating to spring forks for motor cycles, and the like
IPC: B62K25/16
Filed: 1919-11-21
Abstract: 158,739. Warner, J., and Luckett, F. H. Nov. 21, 1919. Spring devices.-Spring forks for motor and other cycles comprise rigid fork members A<3> and secondary fork members D carried by pivoted links B, C, the lower links having slots for the wheel spindle. Abutments E, E<3> for a spring E<2> are pivotally supported by the links B and by rods E' carried by arms A<4> and a bracket A<6> from the steering-column, adjusting-nuts E<8> being provided. The lower ends of the members A<3>, D are provided with jaws to receive the links C. The members A<3> may be extended upwardly and connected to the upper end of the steering- column, and the members D may be extended and linked to the column, or the extensions of the members D may be bent to meet and carry a bra.ke-rod D<4>.
Patent GB-1423362-A (GB)
Title: Fuel control apparatus for gas turbine engine reheat systems
IPC: F02C7/232
Filed: 1972-06-21
Abstract: 1423362 Gas turbine jet engines; re-heat fuel control LUCAS INDUSTRIES Ltd 26 March 1973 [21 June 1972] 28998/72 Heading F1J The invention relates to a fuel control apparatus for a gas turbine engine re-heat system which includes a variable metering arrangement 14 for controlling fuel flow to the engine re-heat burners 20, 21, 22, a low-pressure drain 199 and a distributor valve arrangement 130. The valve arrangement 130 is shown in detail in Fig. 5 and comprises a housing 131 having three inlets 132, 133, 134 connected to the outlets 84, 76a, 78a respectively of the metering assembly 14, also three outlets 135, 136, 137 connected to the re-heat burners 20, 21, 22, also a gallery 141 which is connectible through a dump valve 142 and outlet 143 to the low-pressure drain 199. Valve members 138, 139, 140 are associated with the associated inlets and outlets 132 and 135, 133 and 136, and 134 and 137, the valve 140 comprising a pair of interconnected valve members 147, 148 which are biased by a spring 149 so that the valve 147 is closed and valve 148 is open whereby communication between the inlet 134 and the outlet 137 is shut off. The outlet 137 to the re-heat burner 22 is connected through the open valve 148 to the gallery 141 and so through the open dump valve 142 and outlet 143 to the low-pressure drain 199. When pressure PS3 is applied through line 198 and gallery 151 to the pistons such as 150 of the valve members 138, 139, 140 the valve members such as 147, 148 are moved against the bias of the springs 149 to the position in which the valve 147 is open and valve 148 is closed, as shown. Thus re-heat fuel can now flow from inlet 134 through outlet 137 to the burner 22; also the gallery 141 is closed off. The dump valve 142 is in the open position before re-heat is selected, the servo pressure PS4 being at high value and acting on piston 156 to move valve 154 to the open position against the bias of spring 155. When re-heat is selected the servo-pressure PS4 falls to a low value and the valve 154 moves to the closed position by the force of the spring 155. The galleries 141, 151 are interconnected by lines 194, 198 through a relay valve 160.
Patent GB-159300-A (GB)
Title: Improvements in or relating to apparatus for moulding plastic substances
IPC: B28B5/08
Filed: 1919-11-22
Abstract: 159,300. Abbott, B. H. S., and Close. J. B. Nov. 22, 1919. Rotary-table machines; delivery; feeding; moulds; pressure - producing mechanism; cleaning-apparatus. -In machines of the kind in which plastic or powdered material is shaped in moulds F<3>, carried by a rotary table F, between upper and lower dies C, C<1>, carried by cross heads B, B<1>, reciprocated by cams D, E, one or both of the cams are provided with interchangeable portions D<3>, E<3>, secured to the main portion by bolts D<4> E<4> whereby the operation of the dies may be readily varied. The lower dies work through a stationary block M which may assist in the shaping operation and may be adjustable. Motion is imparted by a belt &c. to the shaft D<1> of the cam D and is transmitted through gearing to the shaft E<1> of the cam E The table F is intermittingly rotated from the shaft E<1> through pin and slot mechanism G<1>, H<1>, and spur and bevel gearing H<2>, and is locked, after each movement, by a lever J operated by a cam G carrying the pin G<1>. Material is fed to the moulds from a hopper K having flexible edges engaging the table and fittsd with an agitator K<1> operated by a crank or eccentric K<3> driven from the shaft D<1> by a belt K<4>. The moulded articles are forced from the moulds by an ejector N on to a conveyer O; or the articles may be ejected upwardly or removed by a scraper. An inclined scraper with a flexible edge cleans the upper surface of the table F. The moulds F<3> are interchangeably secured to the plate F by screws.
Patent GB-907804-A (GB)
Title: Tryptamine derivatives
IPC: C07D401/06
Filed: 1958-11-14
Abstract: The invention comprises 18b -acetoxy-10,17a -dimethoxy - 16b  - methoxycarbonyl-3-oxo-2,3-seco-20a -yohimbane, 18b  - hydroxy-10,17a -dimethoxy-16b -carboxy-3-oxo - 2,3 - seco - 20a -yohimbane and the corresponding lactone, together with a process for their preparation by condensing 5-methoxytryptamine with an ester of 1b -carboxymethyl-2b -methoxycarbonyl-3a -methoxy-4b -acetoxy-6b -formyl cyclohexane in an inert solvent, alkali metal borohydride reduction of the resulting 18b -acetoxy-10,17a -dimethoxy - 16b  - methoxycarbonyl-3-oxo-2,3-3,4-diseco-D 4(21) -20a -yohimbene 3-oic acid to give 18b  - acetoxy - 10,17a  - dimethoxy - 16b  - methoxycarbonyl - 3 - oxo-2,3-seco-20a -yohimbane, which may then be saponified to the 18b  - hydroxy - 16b  - carboxy compound and lactonised, e.g. with acetic anhydride and lithium acetate.  Detailed examples illustrate the invention.  Specifications 868,475 and 907,803 also are referred to.  Reference has been directed by the Comptroller to Specification 799,271.
Patent GB-796321-A (GB)
Title: Improvements in pressure ratio control mechanisms
IPC: B64D13/02
Filed: 1955-01-18
Abstract: 796,321. Fluid-pressure servomotor-control systems. GARRETT CORPORATION. Jan. 18, 1955 [Feb. 5, 1954], No. 29145/56. Divided out of 796,320. Drawings to Specification. Class 135. A pressure ratio control means for enclosures such as aircraft cabins comprises an absolute pressure-responsive device and a differential pressure-responsive device interconnected by means including lever and fulcrum means and also resilient means for loading the differential pressure-responsive device, the said loading being determined at least in part by the absolute pressure-responsive device. The invention is described with reference to the disclosure in Specification 796,320. Specifications 655,601 and 664,143 also are referred to.
Patent GB-941202-A (GB)
Title: Improvements in endless belt conveyors
IPC: B65G39/16
Filed: 1959-11-03
Abstract: 941,202. Endless belt conveyers. GOODMAN MANUFACTURING CO. Nov. 3, 1959 [Nov. 5, 1958; April 17, 1959], No. 29190/63. Divided out of 941,201. Drawings to Specification. Heading B8A. The description is included in that of Specification 941,201, but the claims differ.
Patent GB-1094276-A (GB)
Title: Improvements in the electrodeposition of paint
Inventor: CLAY HERBERT FRANK
IPC: C25D13/22
Filed: 1965-07-09
Abstract: While electro-depositing anodically a coating of paint on an article, the article is vibrated, e.g. directly or by vibrating a conveyer from which it is suspended or by vibrating the coating bath container.  The frequency of vibration may be 25 to 1000 c/s and may have an amplitude less than 1 mm.  The coating may be effected at constant current or constant voltage, and the coating bath may contain 8 to 16% by weight solids in suspension with a pigment volume concentration of 10 to 35%.  In an example steel plate is coated with a water paint of pH 8.2 (containing ammonia) including a polyglycol butyl ether solution of an alkyd-phenol formaldehyde resin admixed with ferric oxide and barium sulphate pigments using aluminium strip cathodes with an applied P.D. of 40 volts.  The resulting coating is stoved.
Patent GB-1260689-A (GB)
Title: Cooling means for semiconductor rectifiers or the like
Inventor: HEDFORS PER
IPC: H01L23/473
Filed: 1969-06-10
Abstract: 1,260,689. Cooling electrical apparatus. ALLMANNA SVENSKA ELEKTRISKA A.B. 10 June, 1969 [11 June, 1968], No. 29319/69. Heading F4U. [Also in Division H1] Semi-conductor devices such as controlled or non-controlled rectifiers arranged about a shaft are provided with combined air and liquid cooling in which air is forced down an air channel within the shaft by means of a fan and passes through a heat exchanger which cools the cooling liquid, part of the air flow being directed back along the duct formed between the air channel and the shaft. As shown, semi-conductor rectifiers 1 are mounted round the wall of a shaft 2 within which is located an air channel 3 through which air is forced by means of a fan 4. The devices are cooled by a closed circuit liquid flow in which oil is pumped through a heat exchanger 8 and  distributed via pipes 14 to the devices from which it returns along pipes 15 to pump 11. The heat exchanger is mounted at the lower end of the air channel 3 so that the air flow cools the oil. Due to the air resistance of the heat exchanger 8 an overpressure is produced in the channel 3 which causes some of the air to flow up the annular duct 6 to provide additional cooling for the semi-conductor devices which have fins 9 projecting into the duct.
Patent GB-690644-A (GB)
Title: Gas or electric cookers
Inventor: HARTLEY HAROLD
IPC: F24C15/08
Filed: 1950-11-30
Abstract: 690,644. Cooking stoves. RADIATION, Ltd. Nov. 1, 1951 [Nov. 30, 1950], No. 29334/50, Class 126 A frame for a gas or electric cooker having an oven comprises a rear part formed by at least two uprights and at least one pair of cantilever members extending forwardly from'the uprights, the cantilever members being arranged parallel with each other and joined by a front part at their outer ends. The metal uprights a, of angle form, are joined near their lower ends by a cross piece b and provided .with feet c. Metal cantilever members d, g, of channel section, are secured at the upper and lower ends respectively of the uprights a. The upper cantilevers d are connected by a front piece e and serve to carry the hotplate and burners of the cooker. A short distance below these cantilevers d a horizontal' plate f, forming the base of a grilling chamber, is secured to the uprights a. The front ends of the lower cantilevers g are connected by a front piece h and provided with feet i. A rectangular sheet metal oven extending to the plate is supported, on the front piece h, and may be secured to the uprights a. The oven may be spaced from the cantilevers and secured to the uprights or the frame may have a single pair of cantilevers carrying the hotplate. the oven being secured to the uprights and provided with feet or a skirting. In another construction the uprights may be short, and the oven may rest on an upper pair of cantilevers, while the space between the upper and lower pair of cantilevers forms a cupboard. The cantilevers may be integral with the uprights.
Patent GB-149927-A (GB)
Title: Improvements in or relating to the production of metal oxides and other compounds ofmetals
IPC: C22B19/36
Filed: 1919-11-26
Abstract: 149,927. New Jersey Zinc Co., (Assignees of Singmaster, J. A., Breyer, F. G., and Bunce, E. H. July 22, 1919, [Convention date]. Zinc and other oxides; basic lead sulphate.- In the production of volatile compounds such as zinc and other oxides and basic lead sulphate from ores by the Wetherill process on a travelling hearth, the bed fuel or the reduction fuel or the ore or any two or all of them are briquetted as described in Specification 137,513, and the bulk of the fuel, for instance 75-85 per cent of the total fuel, may be arranged in the fuel bed, the remainder being mixed with or briquetted with the ore as described in Specification 147,530. A travelling-hearth furnace is described. A pervious endless travelling grate 10 attached to chains passing over wheels 14, 15 receives fuel from a hopper 62, regulated by a gate 53 and. when the fuel has become ignited between arches 32, 33 the ore or ore and fuel is charged on from a hopper 55 regulated by a water-cooled gate 56. Air is admitted from a main 72 through pipes 71 to the air boxes 67 which are disposed between partitions 68 in a chamber under the travelling grate and escapes through openings 74 which are controlled by dampers operated by handles 76. The fumes are withdrawn by flues 38, 39, 40 and the products recovered, the gases from the chambers 31, 34 being separately withdrawn by flues 41, 42. Carborundum bricks 51, Fig. 5, are arranged along the walls adjoining the edge of the travelling grate to prevent the charge fusing on to the furnace wall. The roof 49 is supported by skewbacks 30, Fig. 4, in the known way, and buckstays 25 are held against skewback plates 29 by springs 28. The arches 32, 33, 36, and 37 are hung from the roof by bars 47 set in the brickwork.
Patent GB-712541-A (GB)
Title: Improvements in or relating to methods of testing work-pieces for correctness of linear dimensions
Inventor: LOXHAM JOHN
IPC: G01B5/00
Filed: 1951-12-17
Abstract: 712,541. Linear-dimension gauges. SIGMA INSTRUMENT CO:, Ltd. Feb. 26, 1953 [Dec. 17, 1951], No. 29550/51. Class 106 (2) A method of testing nominally identical workpieces for correctness of a linear dimension comprises the steps of firstly constructing a setting master, then measuring the setting master in regard to the dimension and determining the error in the setting master, placing the measured setting master in a comparator and causing the comparator indicating device to indicate the known measured error of the setting master thereby correctly setting up the comparator, and thereafter gauging the work-pieces for inspection as to the dimension, with the use of the comparator just set up. The work-pieces may be cylinders whose external diameters and lengths are to be inspected by means of a turret comparator as described in Specification 712,539 having appropriate fixtures as described in Specification 712,540, each adjusted in relation to the common indicating device by using a measured setting master.
Patent GB-914373-A (GB)
Title: Improvements in or relating to hydraulic motors
IPC: F16H53/02
Filed: 1960-08-26
Abstract: 914,373. Hydraulic machines. RICHIER, S. A. Aug. 26, 1960 [Aug. 31, 1959], No. 29560/60. Class 69 (2). An hydraulic motor comprises two doubleacting cylinder/piston units 1, 2, of which the outer ends of the cylinders and piston respect tively are pivoted on fixed points 6 and a motor shaft crank-pin 8, and a cam 12, secured on the motor shaft to control the slide valves 10, 11 of two distributers 3, 4 to the respective units, and shaped to maintain each slide valve in the position to hydraulically lock the relevant unit as the piston clears each of its deadcentre positions, and to unlock the unit only after the shaft has taken up the subsequent longitudinal play on the pivots of the unit. A systematic leakage is provided between the cylinder ends of each unit by using rings as piston packing means.
Patent GB-318772-A (GB)
Title: Improvements in and relating to display racks
IPC: A47F5/13
Filed: 1928-10-13
Abstract: 318,772. Croad, A. K., (Weston, E. B.). Oct. 13, 1928. Rack stands.-A display rack for boxes, cartons, &c. consists of an open frame providing a number of rectangular framed openings each with a number of U-shaped members adapted to form pockets to receive the boxes &c. In the construction shown an inverted U-shaped frame 1 is provided with crossbars 3, 4 forming a pair of rectangular frames to which are pivoted U-shaped members 13 which can be swung into a plane at right-angles to the frame 1 to form pockets for the boxes &c. A third rectangular frame is provided by an inverted U- shaped frame 11 secured to the top of the frame 1. The limbs of the pivoted U-shaped members 13 may be adjustable in length to vary the depth of the pockets. The frame 1 is supported easel fashion by pivoted legs 6.
Patent GB-196008-A (GB)
Title: Improvements in and relating to the production of photomechanical printing surfaces
IPC: G03F1/00
Filed: 1921-11-07
Abstract: 196,008. Seyfferth, E. Nov. 7, 1921. Photo-mechanical printing-surfaces; negatives, producing by means other than photography; films.-Negatives or diapositives used in the production of photo-mechanical printing-surfaces comprise a support of cellon, manufactured as described in Specifications 18189/10 and 27258/10, [both in Class 7C, Indiarubber &c.], the surface of which is treated with a weak gelatine or chromated gelatine solution, or with glacial acetic acid or acetone in order to prepare it for the reception of letterpress printing. Illustrations, previously mounted on thin cellon sheets, may be attached to the same support. Photographic films may be so employed, and these are transferred from their original supports to the thin cellon sheets by coating with a dilute solution of caoutchouc followed by a dilute solution of cellon or gelatine, cutting round the part to be transferred, coating this part with a solution of cellon, or gum arabic, pressing a thin cellon sheet thereon, and then stripping the cellon and adhering film.
Patent GB-1130183-A (GB)
Title: The recovery of magnesium salts from brines
IPC: C01D5/10
Filed: 1965-10-01
Abstract: 1,130,183. Recovering K and Mg salts from brine. NATIONAL LEAD CO. 1 Oct., 1965 [2 Oct., 1964], No. 29678/68. Divided out of 1,130,182. Heading C1A. MgCl 2  hydrate is obtained from naturally occurring brines by (a) selective evaporation to crystallize out first NaCl and then kainite KCl.MgSO 4 .3H 2 O and/or picromerite K 2 SO 4 . MgSO 4 .6H 2 O, (b) treating the mother liquor (which contains MgSO 4 , MgCl 2  with some KC1, NaCl) with CaCl 2  to precipitate CaSO 4  and give a solution of MgCl 2  (with some KCI and NaCI), (c) evaporating this solution to crystallize out camallite KCl.MgCl 2 .6H 2 O(+NaCl), (d) washing the carnallite with half its weight of water to form a MgCl 2  solution, and (e) combining the mother liquor from (c) with the solution from (d) and evaporating to dryness, e.g. by spray drying to give MgCl 2 .1¢-2 H 2 O. If picromerite is obtained in step (a) it may be treated with water to form kainite by reaction with the KC1 impurities present. The kainite may then be mixed with the KC1 residue from step (d) and purified by froth flotation as described in Specification 1,130,182. The pure kainite may be roasted with steam, e.g. at 1250 F. to form K 2 SO 4  and MgO  MgSO 4  and evolve HC1, and the residue may be leached with water to give a solution of K 2 SO 4   MgSO 4 . This solution may be selectively evaporated to crystallize out K 2 SO 4  and give a solution of MgSO 4  which is combined with the mother liquor from step (a). The HC1 evolved may be reacted with CaCO 3  to form CaCl 2  for use in step (b).
Patent GB-778175-A (GB)
Title: Improvements in or relating to arrangements for heating vehicles
Inventor: ROZUMEK ERNST
IPC: B61D27/00
Filed: 1954-10-15
Abstract: 778,175. Electric control systems for heaters. VOIGT & HAEFFNER AKT.-GES. Oct. 15, 1954, No. 29788/54. Class 38 (4). [Also in Groups XIII and XXXVII] The heat output of a radiator for heating a vehicle, say a rail vehicle, is cyclically varied between upper and lower values under the control of a manually adjustable electrically heated thermal cycling switch which is uninfluenced by the output of the radiator. The radiator may be electrically heated and directly controlled by the cycling switch. Alternatively, a non-electric radiator may be employed, in which case the cycling switch controls mechanical means for periodically varying the output of the radiator. A safety fuse may be provided for cutting off the supply of heat upon excessive temperature rise of the heating system. In the arrangement shown, a railway carriage is heated by a steam pipe, or the like, 2 and an electric heater 3, both contained in a housing 4 open at the bottom and closable at the top by a flap 5 to control air flow through the housing. A manually adjustable shaft 17 carries cams 8, 9 by which the degree of opening of the flap 5 and the setting of a cycling switch 13-16 controlling the electric heater are simultaneously adjusted.
Patent GB-928521-A (GB)
Title: Improvements in welding apparatus
IPC: B23K11/31
Filed: 1959-09-01
Abstract: 928,521. Control systems for resistance welders. HEXCEL PRODUCTS Inc. Sept. 1, 1959 [Sept. 12, 1958], No. 29869/59. Class 38 (4). A resistance welder having a plurality of electrodes such as is employed in welding a steel honeycomb section has a plurality of electrodes 17 energized in sequence with half-wave pulses of A.C., the duration of which is controlled by thyratrons fired by a counter 35. By supplying the electrodes in sequence instead of in parallel the peak current drain on the supply is reduced. The counter 35 opens gating circuits 118 IXII sequentially to fire the thyratrons, odd and even numbered electrodes being fed with pulses of opposite polarity respectively.