baber/WOPTO huggingface dataset:
Patent GB-541699-A (GB)
Title: Improvements in electric incandescent flash lamps
IPC: F21K5/08
Filed: 1940-06-10
Abstract: 541,699. Photographic flash-lamps. BRITISH THOMSON-HOUSTON CO., Ltd. June 10, 1940, No. 10075. Convention date, June 9, 1939. Drawings to Specification. [Class 9 (ii)] In a. gas-filled electric flash-lamp, preferably using pure aluminium in the form of fine wire or ribbon as the combustible material, the tungsten or like heating filament is enclosed in a thin coating of magnesium powder and potassium perchlorate mixed with a suitable binder. Zirconium powder may also be embodied, a particular composition described being as follows:- 4 ... 5 per cent. nitrocellulose solution. 5ccs.; potassium perchlorate, 5 grams; zirconium powder, 6.5 grams; magnesium powder 1 to 4 grams, preferably 2.4 grams. Amyl acetate may be used to assist in obtaining a homogeneous mixture and to thin out the same to the desired consistency, into which the filament and adjacent portions of the leading-in wires are dipped. It is also stated that the magnesium powder may be applied as a final coating or after-dip; and aluminiums-magnesium alloys may replace pure aluminium as the combustible material.
Patent GB-651807-A (GB)
Title: Improvements relating to electric selector switches
Inventor: HARDS ERNEST JOHN
IPC: H01H63/24
Filed: 1948-04-12
Abstract: 651,807. Electric motors. SIEMENS BROS. & CO., Ltd. April 12, 1948, No. 10101. [Class 35] [Also in Group XXXIX] In a uniselector driving motor having a number of field coils or pairs of field coils successively energized by an equal number of contact spring sets each operated by a separate cam on the motor shaft, each set consists of an inner spring riding on the motor shaft and an outer spring operated on by the appropriate cam, thus allowing for slight eccentricity of the shaft. The cams 39a, 39b and an intervening hub 40 formed integrally from an insulating material are secured as an extension of the motor shaft and the cams engage projections 38 on the outer springs 37 of the upper and lower contact sets respectively, so that when a magnet 24 is energized to release a latch 22 and to close contacts 25 in the motor circuit, the two field magnets 26a, 26b located at 90 degrees to each other are successively energized. The inner springs 37 are sprung against the hub 40. The armature 27 is shaped as described in Specification 447,552. Specification 406,840, [Group XXXIX], also is referred to.
Patent GB-174314-A (GB)
Title: Improvements in and relating to vehicle wheels
IPC: B60C7/10
Filed: 1921-04-06
Abstract: 174,314. Barthe, C. Jan. 21, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Block tyres.- Resilient tread blocks 6 are secured in recesses 5 formed in a rim 1 adapted to be detachably mounted on the wheel. The recesses are formed by transverse partitions 4, a fixed flange and a removable flange. The blocks are formed with lips 8 which engage projections 7 on the partitions.
Patent GB-978733-A (GB)
Title: Duplicate bus-bar switchgear
IPC: H02B1/22
Filed: 1963-03-14
Abstract: 978,733. Switchgear structures. ETABLISSEMENTS MERLIN & GERIN S.A. March 14, 1963 [March 23, 19621, No. 10201/63. Heading H2B. In a duplicate bus-bar switchgear the two sets of bus-bars are arranged respectively in two parallel planes which meet in a line parallel to the bus-bars. Each set of bus-bars 11, 12, 13 and 17, 18, 19 are mounted on insulators 14, 15, 16 and 20, 21, 22 on metal screens 23, 24 which alternate with openings accommodating branch bars 45, 46, 47 and 42, 43, 44 either of which may be coupled to a circuit-breaker 26 and branch conductors 25 by means of isolating switches A, B. An interlock device prevents closure of one isolating switch while the other is closed.
Patent GB-955126-A (GB)
Title: Improvements in and relating to a chair unit for children
IPC: B62B7/12
Filed: 1962-03-16
Abstract: 955,126. Collapsible vehicles. I. KARMEL. March 16, 1962 [March 27, 1961], No. 10227/62. Heading B7B. The front legs 13 and rear legs 16 of a collapsible push chair are pivotally connected at 41 and 28 to a U-shaped member 24 which together with the supports 68 and bars 45 form a seat unit. The legs are held in splayed position by a foot-rest 86 pivotally connected at 88 to the rear legs and at 98 to links 97 carried by the front legs thus forming a toggle which is "broken" by raising the foot rest. A handle 132 is also pivotally attached to the seat unit by the pin 41 so that when the retaining catch 141 is released the handle 132 may be swung downwardly to the dotted position to form a tray unit. The handle 132 may be pivotally attached to the pivots 64 and extend rearwardly so that a part of the handle may be swung down to act as a table.
Patent GB-180504-A (GB)
Title: Improvements in fourdrinier paper making machines
IPC: D21F1/18
Filed: 1921-04-07
Abstract: 180,504. Milne, S. April 7, 1921. Addition to 128,425. Fourdrinier paper-machines; shaking-apparatus for wire cloths.-Comprises a Fourdrinier machine in which the return portion e of the wire is free to vibrate laterally with the top portion, the portion e being carried forward horizontally to a point f as near the couch roll as practicable and supported on small rolls i similar to tube rolls d.
Patent GB-921475-A (GB)
Title: Improved solvent extraction process for the separation of uranium and thorium from protactinium and fission products
IPC: C22B60/02
Filed: 1961-03-21
Abstract: In a liquid-liquid extraction process for recovering thorium and uranium values from a neutron-irradiated thorium composition by forming a nitrate ion-deficient aqueous solution from said composition and countercurrently contacting said solution with an aqueous immiscible organic solvent in a liquid-liquid extraction system containing a plurality of extraction stages divided into a first end extraction stage wherein said nitrate ion-deficient solution is introduced into said system, a plurality of intermediate extraction stages and a second end extraction stage for introduction of said organic solvent into said system, and a plurality of scrub stages preceding said first and extraction stage, the improvement consists in introducing an aqueous salting solution of nitric acid into any intermediate extraction stage of said system, countercurrently contacting said salting nitric acid solution with the solvent in said intermediate and succeeding extraction stages, passing thorium and uranium enriched solvent from each of said intermediate extraction stages to the first end extraction stage and thence to said scrub stages in countercurrent contact therein with an aqueous scrub to decontaminate said enriched solvent of residual amounts of fission products and protoactinium, cycling at least a portion of the thus contacted aqueous scrub to join the aqueous phase in said extraction stages and thereafter removing the decontaminated thorium and uranium enriched solvent from the scrub stages and the protoactinium and fission product-containing aqueous raffinate from said extraction stages.  The aqueous scrub may be selected from the group consisting of water and an aqueous solution of nitric acid, the solution being no greater than 4 molar in nitric acid.  Preferably the scrub solution contains a small amount of phosphate ions. The salting nitric acid solution should preferably be 13 to 16 molar. The organic extractant may be tributyl phosphate in a paraffinic hydrocarbon diluent.  Specification 865,011 is referred to.
Patent GB-594948-A (GB)
Title: Improvements in machines for shaving gears
IPC: B23F19/06
Filed: 1944-05-30
Abstract: 594,948. Gear cutting. MICHIGAN TOOL CO. May 30, 1944, No. 10394. Convention date, July 26, 1943. [Class 83 (iii)] In a machine, for crowning gear-wheels on the intermeshing generator principle by means of a tool having cutting edges on the flanks of its teeth, the work and tool are arranged on crossed axes and are given relative reciprocation parallel to the work axis, the centre distance of the axes being shortened automatically by a cam at each end of the reciprocations, without altering the angular relationship, to round off the ends of the teeth. The work is mounted on an arbor located between head and tailstocks 16, 18, Fig. 4, whereof the former is driven by chain and toothed gearing from an electric motor 154 and both are axially adjustable on ways 14 on the bed 10. The tool arbor 22, Fig. 7, is mounted in bearings 48 carried by bosses 44, 46 on a head 32, Figs. 4 and 7, which is angularly adjustable, to vary the crossed axis position. of the tool, on a pin 36 attached to a housing 24 slidable on ways 28 on - a carriage 26. A gear ring 50 is attached to the housing 24 and is engaged by a pinion on the head 32, rotated by hand at 52 to vary the angular adjustment, locking being effected by nuts 58 engaging the housing and gear ring and co-acting with bolts 62. For reciprocating the tool parallel to the work axis a lead screw 180 engages a nut on the housing 24 and is rotatable on the carriage 26 by spur, worm and belt gearing from a motor 186 which is reversed automatically by switches 220, 222 on a casing 70 and adjustable dogs 224, 226 on the housing 24. For normal gear finishing the carriage 26 is attached by bolts 82<1> to the casing 70 slidable on ways 68 on the bed 10 by means of a screw 96, Fig. 5, rotatable in the casing and engaging a nut 98 secured to the bed 10. The screw 96 is rotatable, either by hand at 118 or from a motor 124 and gearing 112, to feed the tool into the work, a clutch being provided to disconnect the power feed when the hand feed is in operation. When rounding the ends of the teeth on the work, the bolts 82<1> are removed and the carriage 26 is yieldingly held to the casing 70 by long screws 82 carrying nuts 92 which abut on lugs 90 attached to the base 10 and serve to compress springs 86 between the ends of the screws and the carriage. As the housing 24 nears the end of each reciprocation an adjustable slipper 240 or 242 thereon, Fig. 6, engages a cam 236 mounted on the casing 70 to displace the housing and carriage 26 towards the work and thus press the tool into deeper mesh therewith for the crowning operation whilst preserving the same angular relationship of the work and tool.
Patent GB-378403-A (GB)
Title: Improvements in sound reproducing systems
IPC: G10K11/02
Filed: 1931-04-09
Abstract: 378,403. Acoustic horns. WEITLING, T., 195, Fingerboard Road, Fort Wadsworth, Staten Island, New York, U.S.A. April 9, 1931, No. 10480. [Class 13.] A rigid sound-reproducing horn or cone has a peforated wall or walls 5 coated inside and out with a sounddamping material 7, 8, such as loosely compacted felt, burlap, carpet, plush felt, or sponge rubber. The body of the horn may be of metal, papier mache, wood, wicker, or bamboo and the slits, slots or other perforations 6 may be limited to parts of the body. The horn may be provided with transverse partitions 10, 11 and a surrounding concentric member 14, all constructed similarly to the coated walls 5. Two or more horns may be arranged concentrically or nested, or a horn may be provided with baffle-plates similar in construction to the coated walls.
Patent GB-739971-A (GB)
Title: Vitreous coating of non-metallic articles
IPC: C04B41/50
Filed: 1954-04-09
Abstract: 739,971. Vitreous coatings. THORNTON, A. A. (Ferro Corporation). April 9, 1954, No. 10497/54. Class 56. The vitreous coating on a structural building element made of hydraulic cement is made from two separately fused continuous non- porous layers, the inner layer comprising a fused mass of fritted glaze and the outer layer consisting essentially of fused fritted glaze. The ingredients of the inner layer are smelted and then fritted in water or air; the frit is then intimately mixed with specified amounts of refractory materials of higher melting point and applied to the work by spraying, dipping or rolling. After firing and cooling this layer the outer layer is applied and fired, the firing takes place slowly so that there is but a small temperature gradient across the element. The inner layer frit may be made from an enamel consisting of silica sand 44.3 per cent, dehydrated borax 37.3 per cent and calcium carbonate 18.4 per cent or silica sand 36.1 per cent, dehydrated borax 30.4 per cent and litharge 33.5 per cent. The outer layer may be made from the same ingredients (but omitting the refractory material which has been added to the inner layer frit) to which a small amount of pigmentation may be added. Alternatively the outer layer may be made from a fritted glaze comprising silica sand 48 part by weight, dehydrated borax 24, soda ash 36, sodium nitrate 7.5, fluorspar 1.5 and titania-silica mixture (1 of TiO 2  to 2 of SiO 2 ) 36 parts.
Patent GB-548506-A (GB)
Title: Improvements relating to the application of labels to envelopes and like articles
IPC: B65C1/02
Filed: 1941-08-18
Abstract: 548,506. Labelling-machines. WILLIAMS, W. P. (Standard Register Co.). Aug. 18, 1941. No. 10507. [Class 73] In applying imprinted indicia or legend-bearing labels to separate envelopes, small packages and like units, the labels are advanced in a connected chain and secured to the envelopes, &c., and are then carried to a device which detaches the labelled envelope, &c., from the chain; the chain of labels is a continuous strip in which the labels are defined by weakened division lines. In a machine for carrying out this method a strip 1, Fig. 5, is used having pin-feeding holes 2 along its margin, the strip having previously been fed through an addressograph or other machine to print thereon a succession of labels 35, the back of the strip being gummed throughout or at localized areas 3. A known type of glue-spotting device may, however, be incorporated in the machine. The strip is fed from a magazine 4, Fig. 2, by interconnected pin-type feeding devices 6 operated periodically by a chain belt 7 driven from a shaft 9 by a single cycle electric motor 8, and passes in turn beneath a cutting die 28, an electricallyheated presser head 29 in register with a compartment 11 for the envelopes &c., and a punch head 32 co-operating with a spring-pressed frame 31 in register with a receiving compartment 13. These operative elements are carried by a presser head 25 and operate simultaneously respectively to score but not detach an area defining the label, to soften the adhesive and apply a previously scored label to the top envelope in the compartment 11, and marginally to hold the strip with an envelope attached to it by means of the frame 31 while the punch 32, by continued movement, breaks the scored area and discharges the labelled envelope into the compartment 13, The compartments 11, 13 are provided with travelling bottoms 12, 14, respectively rigidly and yieldingly supported on threaded stems 15, 15<SP>1</SP>, which are geared together to move in unison in opposite directions. An electrically-controlled system is provided to operate the various devices in timed relation with each other, but, in a modified machine, the presser head 25 is mounted for swinging movement manually. U.S.A. Specification 1,741,442 is referred to.
Patent GB-386305-A (GB)
Title: Improvements in or relating to the method of and apparatus for treating fibrous material to form pulp
IPC: D21C3/26
Filed: 1931-04-09
Abstract: Chestnut or other deciduous wood chips are leached to extract tannic acid prior to their being pulped.  Logs &c. are fed to a chipper 10 and the chips passed by a conveyer 13 comprising a trough 14 and chain 15 with drags 18 and a similar conveyer 20 through <PICT:0386305/IV/1> shoots 28 to leaching tanks 30, the leaching liquor preferably passing through the vessels in contra-flow.  The tanks 30 may be open at the top and have an inner perforate bottom 32 and are supplied with water or leach liquor discharged from a previous tank through pipes 33 and with steam through pipes 34, the tannin containing liquor being drained through pipes 35 and the chips being expelled through pipes 47 with the aid of stirring arms 44 each rotated by and sliding on a shaft 40 and having inclined blades &c. 45 directing the chips outwardly.  The leaching liquor from the last tank 30 passes to a storage tank supplying evaporators for concentration and extraction of tannic content. It is stated in an example that an open tank is used for leaching for about 34-42 hours at 160-212 DEG  F. using about 1800 gallons of water per " long cord " of chestnut chips giving an extract of " purity of at least 70 as measured on the arbitrary scale used in the industry."
Patent GB-105855-A (GB)
IPC: B60B27/00
Abstract: 105,855. Wright, W. H. Aug. 29, 1916. Roller bearings.-In a roller bearing for wheel hubs &c. having conical rollers, retaining-rings 12, Fig. 3, are fixed tightly and permanently in grooves 11 in the inner race rings 7 by shrinking. The flanges 13 project over pins 10 formed on both ends of the rollers 9. At one end, the flanged ring 12 may be integral with the race ring 7, and may be large enough to project over the roller itself, the pins 10 being dispensed with. Fig. 8 shows a modification in which the rollers are retained by shoulders on both race rings. One of these shoulders consists of a rectangular ring 40 shrunk into a groove 41, and one may be a removable screwed ring 44.
Patent GB-676432-A (GB)
Title: Method and apparatus for the drying, concentration or crystallization of liquid materials
IPC: B01D9/00
Filed: 1949-04-21
Abstract: <PICT:0676432/III/1> In evaporators, crystallizers and driers wherein the liquid-to-be-treated is atomized into the upper part of a chamber and is contacted therein with a drying-medium which is introduced through a pipe disposed below the atomizer, the treated product and the drying-medium being withdrawn from the base of the chamber, the drying-medium is given, before or just after it leaves the inlet-pipe, a circulating-velocity which is greater than, preferably \st2 times, its velocity of advance whereby a p  diffuse distribution of the drying-medium is obtained and the formation of vortices is avoided.  The desired velocity distribution may be effected by inserting stationary or rotary guide-vanes in the pipe.  Rotary guide vanes which may project outside the mouth of the pipe, are preferably put into rotation by the drying-medium itself.  In another embodiment, the pipe is placed at an appropriate distance from a rotary atomizer whereby circulation of the drying-medium is effected by the rotation of the atomizer.  In the Fig., vanes 3 are driven through gearing 6 by gas turbine 7 which is placed in the interior of the inlet-pipe 1 for the drying-medium, in such a way that the drying-medium flows through the turbine and thereby drives the vanes. Specification 627,050 is referred to.
Patent GB-1366284-A (GB)
Title: Electrical length measuring system
IPC: G01B7/02
Filed: 1973-03-06
Abstract: 1366284 Displacement transducers H U MEYER 6 March 1973 [22 March 1972] 10716/73 Heading G1N A differential capacitor transducer 5 Fig.1 for measuring linear displacement of the movable electrode 53, has the fixed electrodes 51, 52 each connected synchronously in alternate periods to a fixed D.C. voltage V1, V2 respectively and an adjustable voltage Vo, and it is shown that when Vo is set to produce no resultant A.C. voltage on electrode 53 it is linearly related to the displacement X of electrode 53 from its median position. Switching is effected electronically at 1-4 by a square-wave generator 8 and inverter 9. In one half-cycle of the square wave switches 1, 3 are closed to connect electrodes 51, 52 to voltages V1, V2 respectively, and in the other half-cycle switches 2, 4 are closed to connect both electrodes 51, 52 to voltage Vo. Any resultant voltage change V3 on electrode 53 is used to vary the D.C. output voltage Vo of a control unit 7 until the voltage change V3 is zero. The unit 7 may consist of a synchronous demodulator and an integrator to give an anolog or digital value of Vo. In one embodiment Fig.6 the fixed electrodes comprise a series of groups of ten plates 31-40 connected to switches 11-30, and the movable electrode is a series of plates 53 located between earthed plates 54. The switches 11-30 are controlled by a counter J1 to inter-connect a first group of five adjacent plates e.g. 33-37 to form fixed plate 51 and a second group of five adjacent plates 38-32 to form fixed plate 52. If the movement of electrodes 53, e.g. to the right, is more than T/10, where T is the distance between consecutive plates 53, counter J1 stops the switches 11-30 so that plates 34-38 and 39-33 now form electrodes 51, 52.
Patent GB-594820-A (GB)
Title: Steering mechanism for tractors and other mechanically propelled vehicles
IPC: B62D1/24
Filed: 1944-06-06
Abstract: 594,820. - Automatic steering mechanism. SILCOCK, N. E. R. June 6, 1944, No. 19836. [Group 79 (v)] [Also in Group XXXIV] An automatic steering mechanism for mechanically propelled vehicles comprises a steering arm associated with the steerable wheels of the vehicle and controlled by steering control means operated by an auxiliary shaft driven from the axle of the driving wheels the steering control means comprising two mechanisms adapted alternately to operate the steering arm so as to steer the vehicle in straight and turning courses alternately and according to a predetermined timed cycle. As shown in Figs. 1, 2 and 6, the steering wheels are operated by a link C pivoted at H<1> the link being operated by a cam F. The arrangement is such that the follower E<2> for a desired period bears upon a concentric portion A of the cam during which period the vehicle is held on a straight course. At a given time the rear portion C' of the link which is pivoted at H is pivoted downwardly by a further cam O so that the follower E<2> now bears on portions F<1> or F<2> of the cam F. As the cam turns it deflects the link C about the pivot H' and the steering wheels are operated. The cam O lowers the link part C' by means of a cut-away portion O<1> into which a follower N is drawn by a spring Q. The cams are driven by a shaft W geared to the rear driving axle the shaft carrying worms U, V engaging worm wheels R, S associated respectively with the cams F and O. Spring bars B hold the follower E<2> against the cam. According to the ratio of the gearing and the shape of the cam O the length of time during which the follower E<2> is held against the concentric portion of the cam F and consequently the steering wheels held straight is determined. The gearing and arrangement is such that the vehicle will be steered on a straight outward course, then turned through a semi-circle and steered on a straight inward course for a distance equal to the outward course. At the end of the inward course the radius of the turn is less than the previous turn and the next outward movement is in a direction parallel with the first but spaced from it. The difference in radius of the turns is obtained by suitably shaping the cam F. The invention, is stated to be applicable to tanks, amusement vehicles, self propelled rollers, mowers or other mechanically propelled vehicles.
Patent GB-791938-A (GB)
Title: Retractable brush applicator with magnetic brush retainer
IPC: A46B11/00
Filed: 1956-04-10
Abstract: 791,938. Brushes. PALICO, Inc. April 10, 1956 [Dec. 30, 1955], No. 10870/56. Class 19. In a liquid applicator of the retractable brush type there is provided on the brush assembly 7, 8, 9, 10 a magnet element 8, 9 and in association with the nozzle structure 4 is a further magnet element 26 and the elements are so positioned on the assembly and structure that when the assembly is in the use position, i.e., a position in which the bristles of the brush assembly project beyond the nozzle, then the magnetic forces existing between the elements, one of which is magnetized, tend to retain the brush in the use position. Seven other constructions to that shown in the accompanying Figure are described. U.S.A. Specification 2,485,494 is referred to.