baber/WOPTO huggingface dataset:
Patent GB-922111-A (GB)
Title: Improvements in or relating to magnetic chucks
IPC: B23Q3/154
Filed: 1958-06-06
Abstract: 922,111. Magnetic holding devices. WINDLEY BROS. Ltd., and E. M. WINDLEY. May 27, 1959 [June 6, 1958], No. 18232/58. Class 35. A magnetic chuck comprises a base 1, Fig. 2, of magnetic material, a frame 6 of non-magnetic material secured thereto, a top member 5 of magnetic material secured to the frame and spaced from the base 1, one or more magnets 4 fixed in the frame to provide a path for the lines of force between the top and base members, and a keep 3 of magnetic material movably disposed between these members and having sliding portions in contact therewith ; the top member has spaced cut-away portions in which inserts 8 of magnetic material are secured by non-magnetic material 9, the keep 3 having cut-away portions to form castellations 16 which are similarly shaped to the inserts 8 and in sliding engagement therewith whereby the chuck is rendered " off " or " on " when the castellations are respectively out of or in register with the inserts 8. In the embodiment of Figs. 1 and 2, the ring magnet 4 lies between the top and bottom members, the whole chuck being in dynamic balance about its rotational axis XX. The insert 8 and castellations of the keep 3 are of segmental shape. Rotation of the keep between stops is effected by a member 2 having means 12, 14 for effecting this movement, together with clamping means, not shown. In a modification (Figs. 4 and 5, not shown), the ring magnet 4 may be replaced by four individual magnets in contact with the top member 5 but spaced from the base and radially and angularly equi-distant about the axis XX, the whole being dynamically balanced thereabout. In a further modification, Figs. 6 and 7, a rectangular frame 6 of non-magnetic material, e.g., an aluminium casting, has a mild steel base 1, two bar magnets 21 secured between a mild steel top member 5 and the base, and a sliding keep 22 the upper face of which is castellated to provide upstanding portions 29 of the same width, or slightly less than, the magnetic inserts 26 which are magnetically insulated from the top member 5 by whitemetal or other fusible non-magnetic material.
Patent GB-986852-A (GB)
Title: Method of preparing uranic oxide in granulated form
Inventor: BURKO JAKUB
IPC: C01G43/01
Filed: 1962-05-11
Abstract: Granules of uranium trioxide are obtained by treating a mixture of UO3 particles and solutions of uranyl nitrate or pastes of ammonium uranate in a one or two-stage heating process, fine particles of uranium trioxide may be recycled to the mixing step at start of the process.  Concentrated solution or paste of uranium salts are heated in a rotating drum at 170-250 DEG  C. and to the drum is added between 80% and 300% by weight of fine uranium trioxide, the dry product being then passed to a second heated drum at 290 DEG -360 DEG C. from which the granules of uranium dioxide are obtained and then sifted.  In a one stage process the initial heating is not used. Large granules (> 4 mm.) are crushed, intermediate granules (1-4 mm.) are separated and collected, and fine granules (< 1 mm.) are recycled with crushed granules to the start of the process. A separation of fine particles may also be made after the first heating, and the initial mix may be made before heating starts or in the heated drum.
Patent GB-546995-A (GB)
Title: Improvements in variable pitch airscrews
IPC: B64C11/34
Filed: 1940-12-31
Abstract: 546,995. Screw propellers. DE HAVILLAND AIRCRAFT CO., Ltd., GILLMORE, K. B., BROWN, G. H. F., and READ, P. H. Dec. 31, 1940. No. 18264. [Class 114] Pitch-change of an airscrew is effected by a motor which runs continuously in one direction, even if the airscrew engine is stopped, and is connected to the blades through reduction gearing and clutches which are selectively operable to transmit pitch-changing movement in either direction. An electric, hydraulic or other motor may be employed. In the mechanism shown in the Figure, a pitch-change motor 10, mounted on the front of the airscrew hub 11, drives a sun-wheel 13 co-operating with a planet-wheel 14 which is mounted in a cage 16 and co-operates with an annulus 15 fixed in the hub. A spindle 17 mounted in the cage carries a planetpinion 18 which drives epicyclic reduction-gearing 21, 22, 22<SP>1</SP> for rotating the blades 23. The spindle carries also planet-pinions 19, 20 of different diameters co-operating with sun-wheels 26, 30 on shafts 27, 29 carrying splined clutchplates 28, 31 which can be moved into engagement with brake-surfaces 34, 36 by means of an axiallymovable band 32. Complete braking of either clutch-plate locks the associated sun-wheel and causes the reduction-gearing to rotate the blades in one direction or the other for pitch-change. The band 32 may be operated by means of a piston 38 which is moved in one direction by pressure-fluid delivered to a space 37, and in the other direction by a spring 39 or by fluid-pressure. The fluidsystem may be controlled by a governor. Alternatively, the band 32 can be operated by handoperated mechanical means or a remote-control system. In a modification, all the mechanism, excepting the second stage 221 of the reductiongearing, is mounted on the aircraft-engine. The reduction-gearing may effect pitch-change at a higher speed in one direction than in the other. The Provisional Specification refers to Specification 470,284.
Patent GB-1041605-A (GB)
Title: Improvements in or relating to implements for laterally displacing material lying onthe ground
IPC: A01D78/00
Filed: 1963-05-08
Abstract: 1,041,605. Haymaking machines; tractor power-lift mechanisms C. VAN DER LELY N.V. May 8, 1963 [June 4, 1962], No. 18273/63. Headings A1F and A1P. In a rake-wheel type haymaking machine each rake-wheel 9 is carried on the crankpin 35 of a crank 34 pivoted on the implement frame, there being a helical spring 38 surrounding the crank axle 33, one end 39 of this spring being held in a fixed position relatively to the frame and the other end 41 co-operating with the crank-pin 35 whereby the rake-wheel is movable vertically against resilient opposition. The implement-frame comprises an oblique main beam 1 with downwardly extending legs 5, 6, 7, 8. Arms 2, 3, extend forwardly to join a beam 4 mounted between tractor hitch-links 13 on pins 11 which are extended inwardly to carry chains 21 on their opposite ends, the chains crossing each other before being connected to the tractorchassis 14. The beam 4 carries an adjustable ground-wheel 19 and the arm 2 carries upwardly-extending struts 17 which are joined to the upper hitch-link 18. Each leg 5-8 terminates in a bracket 25 in which is mounted a vertical pin 27 carrying a boxlike bracket 28 in which the crank axle 33 is journalled and which houses the spring 38, which is surrounded by a sleeve 36 cut away to form stops 37 for the spring-ends 39, 41. The end 41 enters a diametral hole in the crank-pin 35. The bracket 28 is movable, about the axis of the pin 27, together with a sector-plate 42 having holes 43 through which a spring-loaded pin 44 may be passed to lock the bracket 28 and rake-wheel at a fixed orientation to the bracket 26. For tedding the rake-wheels may be swung into the dotted positions in Fig. I. Reference has been directed by the Comptroller to Specification 892436.
Patent GB-189826-A (GB)
Title: Improvements in watering can roses
IPC: A01G25/14
Filed: 1921-07-06
Abstract: 189,826. Arkinstall, H. July 6, 1921. Roses. - A watering-can rose, comprising a chamber of rigid construction having a perforated end plate 3, is provided with a resilient ring 6 to fit around and form a water-tight joint with the outlet pipe of the can. The ring is held between two plates 7, 8, which are themselves comparatively resilient. The rose is formed of inner and outer shells 4, 5 secured together and to tha spraying plate by a rolled-over flange 10, and the ring 6 is retained in position between the inner and outer shells.
Patent GB-1104314-A (GB)
Title: Hydrocarbon separation process
Inventor: GOLDUP ALAN
IPC: C07C7/152
Filed: 1966-04-27
Abstract: One or more components of a hydrocarbon mixture comprising C8 and/or C9, alkyl and/or alkenyl, aromatic hydrocarbons are separated by contact in the liquid or vapour phase with a compound having the basic nuclear structure <FORM:1104314/C4-C5/1> and which forms an inclusion complex more readily with one or more components of the mixture than with the other components, and desorbing the absorbed component(s) therefrom. Suitable materials are tris-(o-phenylenedioxy) -phosphonitrile trimer, o-phenylenediamino -phosphonitrile trimer, and 2,3-naphthyl-dioxy -phosphonitrile trimer.  Such materials may be used in the free state, or on a support, suitable supports being ground firebrick, diatomaceous earth, silica gel, alumina or porous glass, the support preferably being silanized. The feed may be diluted by an inert gas or liquid, and the subsequent desorption of the absorbed components may be effected by displacement with another absorbate, by elution with an inert gas or liquid, or by reduction in the ambient pressure.  A purging stage may be interposed between the absorption and desorption steps.  Para-di-substituted benzenes are absorbed preferentially to mono-substituted benzenes, and both of these types of compounds are absorbed preferentially to other types.  Typical separations are as follows:- <TABS:1104314/C4-C5/1> Examples describe (1) and (3) separation of pfrom m-xylene, (2) separation of p-xylene and ethylbenzene from o- and m-xylene, and (3) separation of n-propylbenzene and p-ethyl-toluene from a C9-alkylaromatic mixture.
Patent GB-112157-A (GB)
Title: Improvements in Bottle Capping and Sealing Machines.
Inventor: WESTLAKE ALBERT
IPC: B67B3/02
Filed: 1916-12-22
Abstract: 112,157. Westlake, A. Dec. 22, 1916. Capsules, applying.-In a bottle capping and sealing machine, the sealing-disks are fed by a slide from a disk-supplying device to a rotary carrier which conveys them to the capping-tool. the bottles being fed in continuous succession t( and from the capping-tool. Means may be provided for heating the disks before applying them to the receptacles. As shown, the sealing-disks are fed from a stack C, Figs. 3 and 4, by a reciprocating slide J to rings I on a carrier G which is rotated step by step to bring a disk first under the heating-oven D and afterwards under the capping-plunger E. Vertically reciprocating plates o, o<1>, Fig. 6, which pass through the rings I, serve to convey the disks from the slide J to the rings I, and to raise the disks into and lower them out of the oven D, respectively. The upper surfaces of the rings I are grooved to coact with the sealing-fingers of the tool E. Angular holders w on an endless apron R feed the bottles H along the table F, and a spring device s<11> centres each bottle beneath the plunger E. A rod Q, Fig. 5, pivoted to a counterbalanced lever P reciprocates the plunger E, the lever P being oscillated by a link h and lever N from a. cam M driven from the shaft of the electric motor B. The carrier G is rotated by bevel and spur gearing from a ratchetwheel m, which is actuated by a pawl l on a shaft a<4> carrying a segmental wheel d<1> rocked by a rack j on the reciprocating plunger casing E<1>. A shaft a<8> carries a pinion c<11> gearing with teeth on the underside of the feed-slide J and a pinion c<3> gearing with a rack j<1> on the casing E<1>. The plates o, o<1> are reciprocated by a rock shaft a<6> carrying an arm q engaged by a lug on the rack j. Toothed arms q<1> on the shaft a<6> gear with pinions c<1> on a shaft a<7> carrying wheels m<1> which are connected by steel bands s<1> to the vertical stems p, p<1> of the plates o, o<1>. The driving-sprocket S<1> of the apron R is driven from the carrier G through gearing n<1>, n<4>, jointed crank-rod T, and gearing n<11>, n<3>. A stamp U for imprinting the date on the sealing-diske is provided.
Patent GB-184161-A (GB)
Abstract: 184,161. Tartrais, E. H. Aug. 3, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Valves. -- The exhaust is controlled by a rotary or other engine-driven valve 11 so that at the end of the power stroke there is a free outlet to atmosphere, the valve wholly or in part closing the outlet pipe before exhaust is completed, so that scavenging is done under a back pressure. The rotary valve shown, driven at engine speed, may serve to control the exhaust of two cylinders.
Patent GB-758185-A (GB)
Title: Improvements in and relating to fastening devices
IPC: F01L13/00
Filed: 1952-07-22
Abstract: 758,185. Strap fastenings. MOTLEY, L. July 14, 1953 [July 22, 1952], No. 18492/52. Class 44. A device for fastening together a plurality of lugs 7 or the like attached to straps or other harness (e.g. an aircraft pilot's harness) comprises two plates 1, 2, a post 3 extending from one plate 1 through a hole in the other, cam means 5 on the remote side of the other plate 2 operable to press the plate 2 towards the plate 1, and means whereby, upon inserting the lugs between the plates at different positions therearound and operating the cam means 5 to hold the plates at a given relative position the lugs 7 will be positively locked against withdrawal. The plates 1, 2 are biased apart by a helical spring 4. A resiliently yieldable connection is provided between the post 3 and the plate 1 by means of a spring washer 11, the post 3 carrying a washer 14 whose movement is restricted by a circlip 15 and a shoulder 13 in the plate 1. The cam 5 and an operating lever 16 therefor are mounted on a pivot pin 6 on the post 3. The cam means is self-sustaining in each of three positions, viz. an unlocking position (Fig. 1, not shown) at which the plates are held apart by the spring; an intermediate position (Fig. 2, not shown) at which the plates 1, 2 are held by the cam means sufficiently close to retain the lugs 7, but can be forced further apart against the action of the spring washer 14 to permit the lugs to be inserted between them; and a locking position (Fig. 3) at which the lugs cannot be removed. A lost motion connection is provided between the cam 5 and lever 16, and comprises an extension 19 projecting into a hole 18 in the lever 16. A spring 20 ensures that when the lever 16 is moved in the " secure" direction the action is immediately positive. Inadvertent movement of the lever 16 in the " release " direction will be absorbed in the lost motion connection. In the example shown in Fig. 3 a circumferential flange 9 on the plate 1 engages a groove 10 in each lug 7. Figs. 6 to 9 (not shown) depict modified ways of locking the lugs between the plates.
Patent GB-403962-A (GB)
Title: Improvements in and relating to a cleaning device or material for windows, silver and other articles
IPC: C11D17/04
Filed: 1932-06-30
Abstract: A device for cleaning and polishing metal, glass, and rubber surfaces consists of a bag or other pad-like container of soft porous material holding a composition consisting wholly or chiefly of finely divided calcium carbonate, calcium sulphate, red oxide of iron, and silica. For example, a bag of white twill swansdown is filled with a mixture of 96.40 lb. of whiting containing a trace of magnesia, 0.75 lb. of calcium sulphate, 0.85 lb. of rouge, and 2.00 lb. of diatomaceous earth.  The pad may be circular, rectangular, or other shape ; it is wetted and kneaded before use.
Patent GB-718469-A (GB)
Title: Improvements in and relating to hypodermic syringes
IPC: A61M5/178
Filed: 1952-07-22
Abstract: 718,469. Hypodermic  syringes. LEWIS, O. E. C. May 21, 1953 [July 22, 1952] No. 18533/52. Class 81(2) In a syringe of the type in which a glass barrel 4 is hel( against an end closure 8 by a surrounding frame 5, the co acting surfaces of the closure member and frame are o part-spherical shape so as to allow correct alignment o the member 8 with the barre 4. To ensure liquid-tigh sealing of the barrel the inner face 17 of the member 8 may be made frusto-conica or spherical and the end o the barrel flat, so as to prc vide a line contact. Specifi cation 718,150 is referred to in the Provisional Specification.
Patent GB-718562-A (GB)
Title: Improvements in adjustable ultra high frequency electric circuit structures
Inventor: PAN WEN YUAN
IPC: H03H7/01
Filed: 1952-07-22
Abstract: 718,562. Ultra-high-frequency filtersRADIO CORPORATION OF AMERICA. July 22, 1952, No. 18549/52. Class 40 (8). [Also in Group XXXVI] A variable ultra-high-frequency filter comprises two resonant structures each comprising two capacitance members one of which can be varied by means of a movable tuning-member whilst the other remains constant, the capacitance members being connected to conductors representing inductances, whose free ends have a common connection. The structures are disposed adjacent to each other to provide electrostatic and electromagnetic coupling. As shown capacitance members of the structures 11, 12 consist of sleeves of copper or silver 13, 14; 27, 28 coated onto glass tubes 12, 26 within which are movable conductive tuning cores 20, 32. The position of the tapered ends of these cores determines the capacitance between the cores and the sleeves 13. 27, the capacitance between the cores and the sleeves 14, 28 remaining substantially constant. The sleeves are connected by conductors 15, 16; 30, 31 to a common conductive plate 17. The input is connected to an intermediate point 45 on the conductor 30 and the plate 17 which is earthed, whilst the output is connected to an intermediate point 47 on the conductor 16 and the plate 17. In the equivalent circuit of Fig. 2 the reference numerals of the various elements in the two structures are applied to the lumped inductances, capacfies &c., which represent them. The coupling between the two structures, represented in Fig. 2 by two coupled series resonant circuits, is preferably greater than the critical coupling in order to obtain a greater width of band-pass. The coupling and hence the band-pass may be varied by adjusting the angular setting of a metal' plate 55 which represents a short-circuited coil. The plate may be perforated, Fig. 10 (not shown), or may take the form of a circular, rectangular or oval annulus, Figs. 4, 5, 6, 7, 8, 9 (not shown).
Patent GB-948013-A (GB)
Title: The ventilation of asynchronous electric motors
IPC: H02K9/04
Filed: 1961-05-23
Abstract: 948,013. Cooling dynamo-electric machines. SIEMENS-SCHUCKERTWERKE A.G. May 23, 1961 [May 20, 1960], No. 18626/61. Heading H2A. An asynchronous A.C. motor is cooled by a fan, mounted on the rotor shaft so as to rotate with respect to it, driven by an auxiliary fan motor, which acts as a commutatorless A.C. machine having a smaller number of poles than the main motor, and which has its " stator " rigidly connected to the rotor of the main motor and fed with the rotor current thereof. The arrangement is such that when the speed of the rotor of the main motor changes in one sense, the speed of the fan changes in the opposite sense. As described, some of the bars 7 of a 6-pole 3-phase squirrel cage motor 1 are extended axially along slots in the laminations 6 of the auxiliary motor driving the fan 4 and are shorted by a shorting ring 12. The remaining bars are shorted by an intermediate shorting ring 11 which is shaped to avoid shorting the extended bars a, b, c, d and a<SP>1</SP>, bl, c<SP>1</SP>, d<SP>1</SP>, Fig. 2. In order to produce a sinusoidal field in the auxiliary motor, the bars 7 may be bent over in the spaces between ring 11 and laminating 6. The auxiliary rotor 8, which may be for example a permanent magnet or reluctance type is mounted together with the fan 4 on a loose sleeve 9 on the shaft 3 so that the speed of rotation of the fan is equal to the sum of the two motor speeds.
Patent GB-1491566-A (GB)
Title: Phosphonic acid monoazo dyestuffs
IPC: D06P3/66
Filed: 1976-04-09
Abstract: 1491566 Phosphoric acid monoazo dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 9 April 1976 [5 May 1975] 18715/75 Heading C4P Novel mono azo dyes, in the acid form, have the formulae wherein A is an aromatic radical contining one or more phosphoric acid groups, and X is the acyl radical of an organic carboxylic acid containing 3 or more carbon atoms, or the acyl radical of a non-carboxylic organic acid (X includes an s-triazinyl-2-yl or a pyrimidin-2-yl or -4yl radical). The dyes are prepared (a) by diazotization and coupling or (b) by acylation. They may be used for the colouration of textile materials which can be dyed by dyes solubilized by anionic groups, e.g. polyamides such as wool, silk, polyhexamethylene adipamide and polycaproimide, but more especially natural or regenerated cellulose textiles, e.g. cotton, linen and viscose rayon; in the case of cellulones they are preferably fixed by baking at 95-205‹ C. in the presence of a carbodiimide. The dyes are particularly suitable for application together with disperse dyestuffs from a single dyebath or print paste, with mixed fibres, e.g. with cellulose/polyester blends.
Patent GB-146858-A (GB)
Title: Improvements in cigarette gripping and cutting devices
IPC: A24C5/12
Filed: 1920-07-05
Abstract: 146,858. Guttmann, N. June 25, 1919. [Convention date]. Void [Published under Sect. 91 of the Act]. Cigarette-making machines.- Relates to tube filling machines and comprises means for gripping the cigarette tube while it is on the filling tube a<1>, removing the filed tube, and cutting off the projecting ends of the tobacco f. Gripping jaws e, e<1> are pivoted to a slide d, operated by a spring r and a cam and slotted lever r<1>, and are opened against the force of a spring g during the forward movement of the slide by a wedge b on the half mould a engaging with projections h on the jaws. When the projections h pass the wedge b, the jaws close on the cigarette. The lower jaw e<1> is adjusted by a spring k and set-screw i. The jaws e, e<1> are cleaned by a brush l operated by levers o, p. The curved cutting blades x, x<1> are carried by levers w operated by a spring w<2>, levers t, and a sliding rod u carrying rollers v.
Patent GB-964218-A (GB)
Title: Improvements in or relating to tapered ball bearings
IPC: F16C19/18
Filed: 1962-05-15
Abstract: 964,218. Bearings. F. J. L. DORL. May 15, 1962 [Dec. 1, 1961], No. 18757/62. Heading F2A. A bearing has an inner cone 1 with thrust flanges 7 and 8 and tracks thereon. Each track has a series of balls mounted therein, the lefthand track receiving the balls 2 of large diameter, the right-hand track receiving the balls 4 of small diameter, and the middle track receiving the balls 3 of a diameter intermediate the diameters of balls 2 and 4. An outer race 5 engages the balls, which have a diameter less than the width of the track in which they are retained, and a cage may be provided.