baber/WOPTO huggingface dataset:
Patent GB-798486-A (GB)
Title: Roll control system for craft
IPC: B64C13/24
Filed: 1955-10-27
Abstract: 798,486. Fluid-pressure servomotor-control systems. BENDIX AVIATION CORPORA. TION. Oct. 27, 1955 [Nov. 5, 1954], No. 30798/55. Class 135. [Also in Group XXXV] In a system for controlling the operation of the roll control surfaces of a craft, such as an aircraft through a servomotor having a manual control and also an automatic compensatory control responsive to the yaw or side slip of the craft, the automatic compensatory control acts on the control surfaces through an auxiliary servomotor separate from the main servomotor and a positional follow-up coupling is provided between the output of the auxiliary servomotor and the automatic compensatory control. In Fig. 1 a control surface 20 is actuated by a servo-piston 21 under the control of a spool valve 24 operated by the pilot's control member 42 through a linkage 12 including a differential lever 30 pivoted to the piston-rod 33, a link 31 and a further differential lever 32, the pivot 45 of which is adjusted by an auxiliary servo-piston 44 which is normally at the right-hand end of its cylinder. The piston 44 is controlled by a spool valve 49 in turn controlled by an armature 53 co-operating differentially with leak-off nozzles 50, 51. The armature 53 is controlled by automatic compensating mechanism 15. The latter includes a vane 60 responsive to the difference between the heading of the craft and the relative wind and operative to energize a signal generator 62 the signal from which is effective through an amplifier 66 of the discriminator type and a low-pass filter 67 to energize a coil 68 surrounding the armature 53. The movement of the servo-piston 44 operates a further signal generator 71 which supplies a negative feed-back signal to the stator coil 63 of the signal generator 62. Following any manual control of the surface 20 the latter is re-positioned by the action of the auxiliary servo-piston 44 on the valve 24 if any yaw or side slip is detected by the vane 60. In the case of craft in which banking is controlled by spoiler surfaces which operate in one direction only from a neutral position, it is necessary to adjust this neutral position at landing or take-off and this is done by a spring- loaded piston 82 which is moved up against a shoulder 83 by fluid pressure admitted by a solenoid-operated valve 80 on closing a switch 78. Should the electric supply fail, a solenoid 95 is de-energized and a spool valve 93 is moved to the right by a spring 96 so that pipe 90 leading to the nozzles 50, 51 and the valve 49 is cut off from the fluid pressure supply P and the latter is connected through a pipe 56B direct to the left-hand side of the piston 44 so that the pivot 45 is moved to a safe position.
Patent GB-364214-A (GB)
Title: Improvements relating to the construction of floors and ceilings
IPC: E04B5/32
Filed: 1930-10-16
Abstract: 364,214. Floors. BLACK, W. H., 24, Brazennose Street, Manchester. Oct. 16, 1930, No. 30978. [Class 20 (iv).] Ceiling slabs a, hooked by their projecting bars c on the flanges of the joists b, support permanent centres d of metal or other material which extend between the inner edges of the joists. Concrete e is then filled in, and a rod or mesh reinforcement f may be added. The main girders k are protected by channel-shaped slabs a3 which are secured to the lower flanges by the projecting bars c. Pipes o may be housed in the hollow n.
Patent GB-1273317-A (GB)
Title: Device with flexible elements for processing textile fibres
IPC: D01H5/02
Filed: 1970-06-26
Abstract: 1,273,317. Drafting device. N. SCHLUMBERGER & CIE. 26 June, 1970 [11 July, 1969], No. 31008/70. Headings DID and D1N. A fibre processing element comprises a flexible tubular member 1 fattened into a figure of 8 having one lobe thereof inserted in a slotted tube 4 and located there by a locking rod 5. The width of slot in the tube being less than the diameter of the lobe fitted with the locking rod. The element can be releasably fastened to a driving chain (Figs. 2-5). Each link of the chain may support one or more elements. The element can be used in a drawing machine, see Specification 1,232,919, or for cleaning drawing members by means of a scraping action. The drawing operation may be carried out by rollers, aprons or pins.
Patent GB-846894-A (GB)
Title: Method of coating glass articles and articles coated thereby
Inventor: YATES KENNETH
IPC: H01J29/24
Filed: 1956-10-11
Abstract: A surface reflection reducing coating is produced on a glass article, e.g. a cathode ray tube by spraying an aqueous solution of sodium or potassium silicate on the surface of the article after heating the surface to a temperature at which the silicate will adhere thereto. The temperature may be between 130 DEG C. and 420 DEG C. and the surface may be maintained thereat for a short period after spraying, or cooled and subsequently reheated to a temperature of e.g. 500 DEG C.  The sodium or potassium silicate solution may have a specific gravity of between 1.0125 and 1.1. After coating, the surface is preferably washed to remove excess sodium or potassium hydroxide.
Patent GB-1417259-A (GB)
Title: Electrolytic refining of metals
IPC: C25C7/08
Filed: 1973-06-29
Abstract: 1417259 Separating electrolytically refined metals BICC Ltd 28 June 1974 [29 June 1973] 31030/73 Heading C7B A partially refined bi-polar electrode 3 comprising a boundary portion 11 on which substantially no pure metal has been deposited is freed from the pure deposit 13 by effecting relative movement between portion 11 and the remainder of the electrode such that the pure metal starts to peel off, a separator 17 being then driven into the split formed to complete the separation. A pivoted clamp 14 may hold the electrode with a stop 16 preventing movement of the main electrode portion when the clamp rotates. A temporary support 18 may engage the electrode during separation. Separate chutes may collect the pure and backing portions after separation. Operation may involve piston-cylinder devices working automatically; alternatively the support 18 may come into operation by virtue of mechanical interaction of stop 16 with the electrode. Cu, Ni and Zn may be so separated.
Patent GB-1203338-A (GB)
Title: A transport vehicle for heavy loads
Inventor: ANDERSSON GUSTAF VERNER
IPC: B60P1/02
Filed: 1968-06-28
Abstract: 1,203,338. Transport vehicle for heavy loads. HAGGLUND & SONER AB. 28 June, 1968 [28 June, 1967], No. 31038/68. Heading B8E. A vehicle 100 is provided with an outer fixed frame 17, 18 within which is mounted an inner frame 24, 24, the inner frame being supported at 32 and 23 of which, the point 32 is mounted on arm 29 of T-shaped lever 101 and the point 23 is mounted on sliding carriage 22, which carriage is connected by cable 31 to arm 30 of the said T-shaped lever, so that, by operation of fluid cylinders 26, the T-shaped lever is moved anticlockwise to raise the inner frame. Additionally the inner frame may be moved longitudinally by pivot 57 operated by fluid cylinders 56. Operation Fig. 5.-A cradle 43 of molten slag is stood within the inner frame and rests on the floor. Cylinder 26 is operated to move the T-shaped lever 101 anticlockwise and thus to lift the inner frame at points 32 and 23 which frame then moves upwards to engage by means of flanges 41, the flange 50 of the cradle 43. The weight of the ladle is now taken by the inner frame. Cylinders 56 are then operated to push the inner frame plus ladle backwards i.e. leftwards. The inner frame plus ladle then begins to tilt about pivot 23 until the ladle is discharged, the contents tipping leftwards. When the cylinders are reversed the inner frame (plus empty ladle) comes back to its original position within the outer frame.
Patent GB-520781-A (GB)
Title: Boxes, cartons and like containers
IPC: B65D5/66
Filed: 1938-10-27
Abstract: 520,781. Cartons, &c. GILL, W. V., GILL, F. J., GILL, C. W., and GILL, A. R., [trading as GILL & SONS, J. W.], and HAMBLETON, J. Oct. 27, 1938, No. 31065. [Class 18] A box, carton &c. of the kind made from a shaped cardboard blank having panels which fold up from all sides of a rectangular base and which may be of the type in which a front wall a folds over extensions from end walls e, has extensions i on the ends passing through a slot or slots j in the back and continued to strengthen the structure either in the manner shown or across the box to form partitions. Extensions i may be secured inside the box at the corners by forming tongues in them which engage slits in the end walls e. Specification 501,922 is referred to.
Patent GB-887991-A (GB)
Title: Rotary shears for subdividing continuously rolled material
Inventor: JORN JOHANNES
IPC: B23D25/12
Filed: 1959-09-11
Abstract: 887,991. Shearing; rolling. KONSTRUKTIONSBURO FUR SCHWERMASCHINENBAU MAGDEBURG VEB. Sept. 11, 1959, No. 31084/59. Class 83 (4). A rotary shear comprises a blade-drum 3 on a hollow shaft 1 enclosing a control shaft 13 which is coupled at one end to the blades 14 and at the other to an operating cylinder 10 controlled by slip rings 8, 9, one of which is angularly-adjustable and has a conducting insert in a ring of non-conducting material. Links 15 connect the rod 13 to pivoted quadrants 17 having cam-slots operating the blades 14. Drive for the drum 3, which co-operates with a similar drum or one 3a with fixed blades 18, is by an electric motor 4 connected in parallel with a roll-stand (not shown) and through a coupling 5 rotating the shaft 2 of drum 3a which is geared at 6, 7 to shaft 1. The slip rings control admission of fluid to the cylinder 10. In a modification, Fig. 6, the control shaft 13 has cam-slots 20 for operating the blades and is splined at 21 to the shaft 1. The shaft 13 may be integral with the pistonrod 12 rotatable in the piston 11. The electric motor 4 may operate synchronously with the roll-stand, and coolant is introduced between casings 22, 24 to the drum, leaving by casing 25, 26. The cam slots may be symmetrical for cutting operations of the blades in both directions of movement of the piston, which may be operated by an explosive.
Patent GB-779415-A (GB)
Title: Improvements in cigarette and like boxes or cases
Inventor: HARMAN HARRY ISAAC
IPC: A45C13/10
Filed: 1954-10-28
Abstract: 779,415. Spring catches. HARMAN BROS., Ltd. July 4, 1955 [Oct. 28, 1954], No. 31095/54. Class 44. A spring catch for holding a lid or first section 1 of a box in a closed position on a body or second section 2 comprises a plunger 3 in the form of a cylindrical pin which passes through a hole in a wall 2a of the body or second section of the box and has a head 3a on the outer end between which and said wall of the box a coiled spring 7 is arranged, and a catch plate 6 on the inner end of the plunger, one edge of which is shaped to form a catch head 8 for engaging a keeper 9 on the inside of the lid or first section of the box, whilst the opposite edge is guided on the bottom of the box or second section to prevent rotation of the catch plate about the axis of the plunger. A cup-shaped head 4 forming a thumb-piece is mounted on the plunger to bear against the head 3a and a spacer in the form of a sleeve 5 is also mounted on the plunger to bear against the head 4 and pass through the hole in the wall 2a. The catch plate 6 bears against the sleeve 5, the end of the plunger being riveted over against the catch plate to fix it in position. The catch plate 6 is made of sheet metal and its outer edge is bent to form the catch head 8, the catch plate being cranked so that the catch head can engage the keeper 9. As shown, the box is made of sheet metal and the keeper 9 is formed by a bent lip on the lid or section 1.
Patent GB-1148008-A (GB)
Title: Method and apparatus for reclaiming rubber scrap
IPC: B31B50/59
Filed: 1966-07-11
Abstract: 1,148,008. Reclaiming rubber in a continuous fashion. ULTREX-CHEMIE G.m.b.H. 11 July, 1966 [20 July, 1965], No. 31097/66. Heading C3E. Rubber scrap is pulverized, mixed with reclaiming aids and then simultaneously exposed to centrifugal forces whilst subjecting in a pulsating manner to friction, milling, shearing, and crushing forces, the last part of the treatment being carried out within 5 seconds from the start of the centrifugal forces. In an apparatus for carrying out the invention the ground scrap is passed through an aperture 11 in a disc 12 provided with teeth 22. The scrap is given a centrifugal force by impeller 25 and passes through the gap between the teeth 22<SP>1</SP> of disc 13 and teeth 22. Disc 13 rotates thereby imparting pulsating flow to the scrap and also shearing and crushing the scrap. The scrap passes into the chamber 12<SP>1</SP> having grooves 23, 23<SP>1</SP> wherein it is milled and then between close parallel surfaces 24, 24<SP>1</SP> wherein the scrap is subjected to frictional forces. The reclaimed scrap may then be cooled and treated conventionally.
Patent GB-339414-A (GB)
Title: Improved means applicable for pulverising materials such as pieces or agglomerationsof clay for use in the ceramic art
IPC: B28C1/18
Filed: 1929-10-14
Abstract: 339,414. Wade & Son, Ltd., G., and Wade, G. A. Oct. 14, 1929. Continuous-discharge apparatus with stationary containers.-An impact pulverizer for clay &c., comprises a plurality of wheel-like structures a, a<1>, arranged one above the other on independent coaxial shafts d, e, adapted to rotate at different directions and speeds and supported pendently in a casing f through a U-shaped casing i, which encloses the driving pulleys d', e<1>. The material is fed in at l through a hopper or travelling belt and is discharged into a receptacle g or on to a travelling belt &c. Each wheel a, a<1>, comprises a concave or flat rim b<1> and cycle-like spokes c or expanded metal. A central, tubular, guide k is fixed by a block k<1> to the casing i and receives through its centre the shaft d which carries the wheel a at one end and the pulley d<1> at the other. The other wheel a<1> is supported on a tubular shaft e which revolves on the outside of the guide k and is driven by the pulley e<1>. A sight-hole or window h<1> is fitted in the cover h.
Patent GB-264001-A (GB)
Title: Improvements in circulation or pressure indicators
IPC: G01L7/08
Filed: 1925-12-10
Abstract: 264,001. Rotherham, K., and Eyles, A. E. Dec. 10, 1925. Diaphragm and spring - pressure gauges.-Comprises a circulation and/or pressure indicator in which the pressure fluid acts upon a diaphragm and plunger 5, 4, and causes axial movement of the plunger, which movement through a helical slot 12 and fixed pins 11 causes rotation of the plunger and of a disc 15 carried thereby, which is viewed through a fixed slotted screen 17. The disc is provided with radial zones of different colour. The pins are carried in a disc 8 which is screwed into the cylindrical casing 2 and is provided with a shoulder which bears against the dashboard, the instrument being secured by a clamping nut 19 on the casing 2. A screwed ring secures a glass front.
Patent GB-722984-A (GB)
Title: Steroid production
Inventor: NATHAN ALAN HART
Filed: 1952-12-09
Abstract: The invention comprises a process for the saturation of the double bond in the 4(5)-position of an 11(a )-acyloxyprogesterone to produce 11(a ) - acyloxypregnane - 3,20 - diene having the normal stereo configuration of hydrogen at carbon atom five of the steroid nucleus, which comprises hydrogenating an 11 (a )-acyloxyprogesterone wherein the acyloxy group has the formula AcO, Ac being the acyl radical of an organic carboxylic acid, with hydrogen in the presence of a palladium hydrogenation catalyst, e.g. palladium, together with a carbonate or oxide, or a mixture of the carbonate and oxide, of a Group 2B element of the Periodic Table.  The hydrogenation may be carried out in an alkanol containing up to eight carbon atoms, e.g. methanol. Specific catalysts mentioned are palladium black, palladium on charcoal, palladium-barium sulphate, palladium on an ion exchange resin, palladium on calcium carbonate and palladium in the presence of zinc oxide, zinc carbonate or cadmium oxide. Subsequently the 11(a )-acyloxypregnene-3,20-dione may be reduced to 11(a )-acyloxypregnane-3(a ),20-diol by means of lithium aluminium hydride, sodium borohydride or lithium borohydride and hydrolysed to pregnane-3(a ),11(a ),20-triol, which may be oxidized, e.g. with chromium trioxide, chromic acid or potassium dichromate to pregnane 3,11,20-trione.  Examples disclose the use of starting materials in which the acyloxy group in the 11-position is formyloxy, acetoxy, propionyloxy, butyloxy, valeryloxy, hexanoyloxy, heptanoyloxy, octanoyloxy and benzoxy. Specification 697,150 is referred to.  11a -Acyloxyprogesterones are obtained by reacting 11-hydroxyprogesterone with an acid anhydride, acyl halide, ketene or a ketene of a selected acid.  Examples disclose the production of compounds in which the 11-acyloxy group is formyloxy, acetoxy, propionyloxy and benzoyloxy.ALSO:A palladium catalyst supported on zinc oxide-zinc carbonate mixture is obtained by precipitating zinc carbonate from a solution of zinc chloride by means of sodium carbonate, adding a solution of palladium chloride and formaldehyde, and precipitating palladium by means of sodium hydroxide.  The precipitate is filtered and heated, likewise there may be obtained palladium supported on zinc carbonate, mercury carbonate, cadmium carbonate, "Amberlite" (Registered Trade Mark), calcium carbonate, barium carbonate, barium sulphate or carbon may be used as catalyst carriers.
Patent GB-705595-A (GB)
Title: Improvements in thimble tube boilers
Inventor: SPURR SAMUEL WILLIAM
IPC: F22B33/04
Filed: 1950-12-22
Abstract: 705,595. Vertical steam boilers. CLARKSON THIMBLE TUBE BOILER CO., Ltd. Dec. 21, 1951 [Dec. 22, 1950], No. 31209/50. Class 123(2) The outer shell of a thimble tube boiler includes an intermediate part 30 which is axially movable relatively to the upper and lower parts 2a, 2b thereof to afford access to the tubes which are in two opposed banks 4, 5 extending inwardly from the inner shell 1. The inner shell may also be fitted with three equiangularly-spaced cross tubes 7, 8, 9, with the upper one 9 disposed between the two tube banks 4, 5. The upper and lower shell parts 2a, 2b are rigidly connected together by axiallyextending distance pieces, not shown, welded to the inner surfaces thereof at spaced intervals, and, normally, the part 30 is secured to said shell parts by bolts which engage end flanges 31, 32 on the part 30 and mating flanges 19, 25 on the parts 2a, 2b, and, upon removal, permit the part 30 to be lowered by peripherally spaced screw-jacks 33. Each screw-jack comprises a spindle 40 with an integral hexagonal portion 41, the ends of the spindle being oppositely threaded for engagement with bars 42, 44 which are, respectively, hinged m lugs 43 on the lower edge of the shell part 30 and supported in recesses 45 of lugs 46 on the shell part 2b. Handholes 50, 51 are provided in the shell part 2b opposite the cross tubes 7, 8.
Patent GB-971352-A (GB)
Title: Forming rigid structures of expanded thermoplastic material
Inventor: EVERARD KENNETH BOOTHBY
IPC: B29C44/50
Filed: 1962-08-15
Abstract: <PICT:0971352/C3/1> <PICT:0971352/C3/2> A block, sheet, channel or pipe of a rigid thermoplastic polymeric composition, e.g. polyvinyl chloride, comprising a core of expanded material between skins of smooth unexpanded material is made by mixing the composition with a blowing agent having a decomposition temperature above the 1/10th Vicat softening point of the composition, and whilst maintaining the walls of the structure at a temperature below the decomposition temperature of the blowing agent, applying a high frequency field to the body of the composition to cause it to expand. As shown in Fig. 1, the composition 2 is extruded over a stray field heater 3 comprising separate conducting plates 10.  The temperature of the walls may be controlled merely by the air or by upper and lower belts. In a modification, Fig. 2, the composition is extruded to just pass between platens, 5, 6. To obtain a more uniform heating one of the platens may be inclined with respect to the other (see Fig. 3, not shown). The platens may be coated with polytetrafluoroethylene, and may be hollow for the circulation of cooling fluid. In an example the composition comprises (parts by weight) 100 parts of polyvinyl chloride, 10 parts of mixed phthalate esters of alkyl groups having 7 to 9 carbon atoms, 3 parts of a Ba/Cd soap, 2.5 parts of a condensation product of epichlorhydrin and diphenylopropene, 1.0 part of calcium stearate, 0.5 parts of stearic acid, and 2.0 parts of azodicarbonamide.
Patent GB-1002671-A (GB)
Title: Slurried blasting explosives
IPC: C06B47/14
Filed: 1964-08-04
Abstract: A slurried blasting explosive composition, resistant to segregation of its ingredients during storage, comprises an inorganic oxygen-supplying salt, a particulate organic explosive, a gel-forming or thickening polysaccharide, finely divided aluminium or an alloy thereof, water, and a metal chromate which is either sodium or potassium dichromate in an amount of 0.01 to 0.1% by weight or zinc or barium chromate in an amount of 0.1 to 2% by weight.  The oxygen-supplying salt may be ammonium, sodium, barium, potassium, or calcium nitrate, or a mixture thereof. Organic explosives referred to are TNT, PETN, tetryl, RDX, pentolite, Composition B, smokeless powder, and mixtures thereof. The polysaccharide is preferably a mannogalactan, for example guar gum or carob seed gum, and may be mixed with ethylene glycol or glycerine.  The chromate acts as a cross-linking agent on the polysaccharide, and its action may be delayed by addition of a small amount of a metal oxalate or citrate, oxalic acid, citric acid, tarteric acid. or gluconic acid. Specifications 869,155 and 1,002,672 are referred to.  Canadian Specification 617,006 also is referred to.
Patent GB-923170-A (GB)
Filed: 1960-09-13
Abstract: The invention comprises 4-(prop-2-ynyl)-4-piperidinol esters of the general formula:  <FORM:0923170/IV(a)/1> their non-toxic pharmaceutically acceptable acid addition salts wherein R represents a straight chain aliphatic monovalent C1-4-hydrocarbon radical, an alkoxyalkyl radical, a phenoxyalkyl, a cycloaliphatic or a straightchain or branching aralkyl or a straight-chain aralkenyl radical, and R1 represents a straight-chain alkanoyl or alkenoyl radical containing 2 to 4 carbon atoms, a trimethylacetyl, a benzoyl, an alkoxybenzoyl, a substituted or unsubstituted carbamoyl or a phenoxyalkanoyl radical and the preparation thereof by reacting a prop-2-ynyl halide in the presence of an amalgam of magnesium, aluminium or zinc and of an ether with an appropriate N-substituted piperidone, hydrolysing and then esterifying or directly esterifying the metallic complex so formed to give the basic ester which may, if desired, be converted into an acid addition salt.  The intermediate piperidinol may be isolated.