baber/WOPTO huggingface dataset:
Patent GB-830247-A (GB)
Title: Improved olefin polymerization catalyst and process
IPC: B01J37/00
Filed: 1957-05-01
Abstract: A chromium oxide-silica-alumina catalyst is prepared by mixing separately prepared silica gel and hydrated alumina, grinding the mixture with free water, incorporating chromium oxide, or a compound of chromium convertible to the oxide on heating, in the comminuted material, and heating to form a catalyst containing hexavent chromium.  The mixture, containing at least 2%, preferably 10%, of alumina is mixed with water, ground to an average particle size below 25 microns, preferably below 5 microns, pelleted, impregnated with chromic acid, chromium nitrate or chromium chloride to incorporate 0.1 to 10 weight per cent of chromium, dried, activated by heating at 700 DEG  to 1500 DEG  F., and ground.  The silica-alumina base may be heated in air and steam at 1100 DEG  to 1300 DEG  F. before impregnation.  In an example a catalyst is prepared, suspended in cyclohexane and ethylene is polymerized by passing it into the suspension.ALSO:In a process for polymerizing a 1-olefin the feed is contacted with a chromium oxide-silica-alumina catalyst prepared by mixing separately prepared silica gel and hydrated alumina, grinding the mixture with free water, impregnating with chromium oxide, or a compound of chromium convertible to the oxide on heating, and heating to obtain a catalyst containing hexavalent chromium.  In an example the catalyst is prepared, suspended in cyclohexane, and ethylene is passed into the suspension at a pressure of 450 p.s.i.g. at a temperature of 270 DEG  F.
Patent GB-1506831-A (GB)
Title: Method and an apparatus for continuously coating a web with a liquid
IPC: B05C1/08
Filed: 1976-04-06
Abstract: 1506831 Applying release agent to paper webs BILLERUDS AB 6 April 1976 [28 April 1975] 13884/76 Heading D11. Paper webs are coated with small quantities of release agent e.g. 4-12 ml/m<SP>2</SP> by contacting the web 1 with a roller 5 located in the opening of a vacuum chamber 2 so that the web is brought into roller contact by air pressure. The coating may be applied from beneath [Fig. 2]. from above [Fig. 4] or from the side [Figs. 3, 5]. The roller is supplied with coating liq. from a pool 6 or from a supply conduit 14. Excess coating is removed by doctor blade 10. The roller may be lightweight or hollow so as to float on the coating liq.. In a modiscation the coating may be applied firstly to an endless belt. the belt then being brought into contact with the web.
Patent GB-452998-A (GB)
Title: Method for manufacturing surfacings of bituminous aggregates, particularly for roads
IPC: E01C7/18
Filed: 1935-05-11
Abstract: In the manufacture of bituminous surface coverings, stone aggregate is enrobed in soft bitumen, and to this is applied a powdered binder containing hard bitumen obtained by subjecting bituminous matter to oxidation during distillation, a sedimentary rock material, e.g. sandstone, limestone or clay, and a rock of pellicular structure, e.g. mica or slate.  The binder may be obtained by mixing the powdered rocks with the oxidized bitumens, preferably in emulsion, blowing steam through the mixture, and, after a period of rest, heating the mixture to dry it, and then compressing and powdering it.
Patent GB-297076-A (GB)
Title: Improvements in the production of colouring materials
IPC: C09B67/46
Filed: 1927-03-14
Abstract: 297,076. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 14, 1927. Divided on 267,924. Colloidal sols. - Finely-divided colouring materials are obtained by grinding with an addition of sulphonic acids or their salts, obtained by sulphonating mineral oils, oil distillates, brown coal-tar oils, or similar mixtures containing aromatic, hydroaromatic, and saturated or unsaturated cyclic and aliphatic compounds. According to an example, 100 parts of soot are made into paste with 200 parts of water containing 3 parts of sodium mineral oil sulphonate and ground. The product may be used for making Indian ink, In another example, amber is ground with the sodium salt of the sulphonated product obtained from a mixture of naphthenic acids.
Patent GB-671220-A (GB)
Title: Improvements in or relating to a variable pitch pulley
IPC: F16H55/56
Filed: 1949-05-25
Abstract: 671,220. Expanding pulleys. STEVENS, A. H. (Gerbing Manufacturing Corporation). May 25, 1949, No. 13970/49. Class 80 (ii). Opposed flanges 4, 5 of single or multiple expanding pulleys are connected together for equa' and opposite axial movement by diametrically opposite keys 11 sliding ir slotted keyways in the supporting shaft, pinned at 12, 14 to the respective flanges and connected together by an equalizing pinion 18 carried in a diametral slot in the shaft and meshing rack-teeth on 'the keys. A spring 25, enclosed by a sleeve 26 and abutment plate 21 loads the flanges to the closed position snd a lubricator 32 is provided in the plate 21. With two pulleys side-by-side on a common shaft, either in parallel or series, the respective flanges are connected by separate pairs of keys engaging two separate equalizing pinions mounted side-by-side in the shaft. A twin series pulley Fig. 8 (not shown) for use on a countershaft, dispenses with the loading spring 25, loading being effected by belt tension only.
Patent GB-1179051-A (GB)
Title: Phenethylamino-Propan-2-ones and -Propan-2-Ols
IPC: A61K31/135
Filed: 1968-03-22
Abstract: 1,179,051. α,α - Dimethyl - # - phenethylamino - propane derivatives. AYERST, McKENNA & HARRISON Ltd. 22 March, 1968 [23 March, 1967], No. 14054/68. Heading C2C. Novel α,α - dimethyl - # - phenethylamino - propane derivatives of the general formula wherein R is a hydrogen or chlorine atom and Z is a -CO- or -CHOH- group, and pharmaceutically acceptable acid addition salts thereof are prepared by reaction of α,α-dimethyl-#- phenethylamine or a derivative thereof of the general formula with chloro- or bromo-propanone, followed optionally by reduction of the resulting ketone of the first general formula above to form the corresponding hydroxy compound, followed optionally by conversion of the product to a pharmaceutically acceptable acid addition salt thereof. Pharmaceutical compositions having anorexiant activity comprise, as active ingredient, an α,α - dimethyl -# - phenethylamino - propane derivative of the first general formula above or a pharmaceutically acceptable acid addition salt thereof, in association with a pharmaceutically acceptable carrier, and may be administered orally.
Patent GB-253349-A (GB)
Title: Improvements in apparatus for treating coke when discharged from retorts and the like
IPC: C10B39/04
Filed: 1925-05-29
Abstract: 253,349. Drakes, Ltd., and Drake, J. W. May 29, 1925. Cooling discharged materials. - Coke is discharged from retorts into an inclined shoot a closed at the lower end by a door c and arranged beneath a series of pivoted buckets d which receive water from taps p on a supply pipe k. The buckets are interconnected by links f and an arm g which is moved by a hand-lever h to invert the buckets; after quenching the door c is opened to discharge the coke.
Patent GB-1223386-A (GB)
Title: Improvements in variable inductors
Inventor: O'REILLY TERENCE MICHAEL
IPC: H01F21/12
Filed: 1969-03-18
Abstract: 1,223,386. Inductors. G. & E. BRADLEY Ltd. 18 March, 1969, No. 14235/69. Heading H1T. A variable inductor comprises two interfitting, coaxial coils 11, 12 which are relatively movable along their common axis, each coil having a tapping point and end connections which may be connected to those of the other coil in selected combinations to provide a range of inductance including at least one continuous range of at least one and a half to one. The coil 11 is wound on an insulating cylindrical former 13, which may be of vinyl resin, mounted between support boards 23, 24 which slide along a pair of brass rods 25. The coil 11 is driven between end stops 27, 28 by means of a rack 29, pinion 30, gearing 31, 32 and a knob. The coil 12 is held stationary between supports 33, 34 by rods 37, 38 fastened to end plates 35, 36. The coils are wound with a double layer of Silk-covered Litz wire with the odd-numbered turns (with the exception of the second) next is the former and the even-numbered turns outermost (Fig. 5, not shown), thus reducing self-capacitance. The ends and tappings of the coils are soldered to terminals on the insulating support members. The coils may be connected together in series to provide either positive mutual inductance (Fig. 1, not shown) to give a continuous range of 1¢ to 1, or negative mutual inductance (Fig. 2, not shown) giving a continuous range of more than 4 to 1. Alternatively, one half of each coil may be connected in series to provide negative mutual inductance over a continuous range of 2¢ to 1 (Fig. 3, not shown).
Patent GB-916608-A (GB)
Title: Improvements in or relating to the machining of cylindrical finned bodies
Inventor: ACTON ERIC WILLIAM VICKERS
IPC: B23Q35/00
Filed: 1959-04-27
Abstract: 916,608. Copy-planing. GENERAL ELECTRIC CO. Ltd. April 22, 1960 [April 27, 1959], No. 14271/59. Class 83 (3). A machine for machining parallel-sided helical slots in a cylindrical body 3 comprises a mandrel 4 for supporting the body, means 5, 6 for rotating the mandrel in synchronism with traverse of a cutter and means 13 for adjusting the position of the cutter with respect to the axis of the body. In a planing machine, the workpiece body 3 is a straight-finned protective can of magnesium alloy for a nuclear fuel element. The fins are to be slotted helically to receive helical extension fins as described in Specification 859,960. The body 3 is rotated in unison with a former 5 associated with a weight 8 to prevent backlash. The cutterhead 10 carries followers 11 engaging the former 5 so that, as the ram is reciprocated, a helical slot is cut in the body. The cutter is fed between strokes by the mechanism 13. The body is indexed when a slot has been cut. The spaces between the original fins are filled by candle wax loaded with graphite to prevent deformation by the cutter. The original fins may be helical also.
Patent GB-625408-A (GB)
Title: Improvements in electric condensers and in radio circuits including same
IPC: H03H5/02
Filed: 1938-05-13
Abstract: 625,408. Variable condensers. DODDS, J. M., LUDLOW, J. H.,and METROPOLITANVICKERS ELECTRICAL CO., Ltd. May 13, 1938, No. 14377. [Class 37] [Also in Group XL (c)]  The tuning circuit, particularly the grid circuit, of a high power valve transmitter comprises an adjustable corrugated plate condenser in combination with a series-parallel switch for connecting at will the condenser in series or parallel with the inductances. The arrangement is such that when the condenser plates are close together, the condenser acts similarly to a vane-type condenser wherein the overlap is varied, whilst when the plates are separated the condenser operates mainly as a condenser of the variable gap type. Fig. 1 shows an arrangement for tuning the grids 30, 31 of a pair of push-pull valves, the condenser comprising fixed corrugated plates 3, mounted on members 1 insulated from each other, and co-operating with a common movable plate comprising two corrugated plates 4, 5 supported on a main plate 8 which is movable on pivoted links 9 toward and away from the fixed plates by a pivoted lever 19 carrying a roller 22. Adjustment of the movable plates is affected under the control of a spring or counterweight. Pairs of switch arms 33, 25 pivoted on the grid terminals and fixed condenser plates respectively co-operate with a plurality of sets of fixed contact jaws 34, 26 connected to the inductances. Specifications 414,753, [Group XL], 625,404, 625,405 and 625,406, [all in Group XL (c)], are referred to.
Patent GB-243307-A (GB)
Title: Improvements in well casings or tubing
IPC: F16L15/00
Filed: 1925-06-02
Abstract: 243,307. Keck, W. M. Nov. 22, 1924, [Convention date]. Spigot - and - socket screwed joints.-A well. casing or tubing comprises sections A of uniform diameter throughout and with the two ends B, C of each section upset outwardly, said upset ends being so formed as to provide an external shoulder, substantially at right angles to the axis of the tubing, whereby said tubing may be lowered into or raised from the well. An external thread 1 is formed on the end B of each section while a corresponding internal thread 2 is formed in the opposing end C, both threads being tapered and of such form that connecting sections may be screwed together fluidtightly without allowing any part of the end B to come to a seat against a shoulder 3 in the end C of the adjoining section. The upset ends B, C are of substantially the same diameter.
Patent GB-860889-A (GB)
Title: New dyestuffs of the perylene tetracarboxylic acid series and process for their manufacture
IPC: C09B5/62
Filed: 1957-05-06
Abstract: Pigments of the formula <FORM:0860889/IV (a)/1> where X is hydrogen or chlorine, are used to colour polyvinyl chloride containing a plasticizer or polyethylene.ALSO:The invention comprises dyes of the formula:  <FORM:0860889/IV(c)/1> where X is hydrogen or chlorine, and a process for making them by condensing perylene-3:4:9:10-tetracarboxylic acid or its anhydride with 3-chloraniline or 3:4-dichloraniline.  The dyes colour plastics, such as polyvinyl chloride containing a plasticizer, or polyethylene, or printing inks and lacquers.  In examples, perylene-3 : 4 : 9 : 10-tetracarboxylic acid dianhydride is heated with (1) 3-chloraniline in excess of the amine or in quinoline, or (2) 3 : 4-dichloraniline in quinoline or in water.  Specification 659,529 also is referred to.
Patent GB-440016-A (GB)
Title: Photographic printing paper
IPC: G03C1/765
Filed: 1935-05-17
Abstract: 440,016. Photographic printing paper and prints. DURKOPPWERKEAKT.-GES., 2, Nikolaus-D³rkopp-Strasse, Bielefeld, Germany. May 17, 1935, No. 14476. Convention date, May 19, 1934. [Class 98 (ii)] The sensitive paper comprises a continuous roll or strip which is provided along the margin of each picture area with holes and two lines of perforations, so that the prints can readily be separated and mounted in album form on clips or like fastenings. The prints a are detached at the main perforated lines f and mounted on button pins which are passed through the holes b in the prints. Afterwards, any print can be detached from the main assembly by tearing along the perforations e.
Patent GB-724128-A (GB)
Title: Improvements in or relating to yarn winding and twisting machines
IPC: D01H1/30
Filed: 1952-06-10
Abstract: 724,128. Textile twisting machine building motions. SCRAGG, Ltd., S. & E., and SCRAGG, F. Sept. 7, 1953 [June 10, 1952], No. 14534/52. Class 120 (2). A ring twisting machine has the rings divided into two sets carried by separate frames that are raised and lowered by connected bell crank levers and a reciprocating bar in such manner that the two sets of rings move in opposite directions. The frames 5, 6 carrying rings 4 slide on pillars 7, 8 under the influence of the bell crank levers 9, 10 connected by links 12 and to the reciprocating bar 14 by links 13 and levers 15 pivoted on brackets 16 secured to the bar 14. For part of the traverse of each frame 5, 6 its associated lever 15 bears against a stop 17 on the bracket 16, but as the frame approaches the top of its traverse its movement is accelerated by an abutment 18 on an auxiliary bar 19 that additionally pivots the arm 15. Co-axial cams 22, 23 effect reciprocation of the bars 14, 19, the cam 23 being rotated from the cam 22 through epicyclic gearing 24, 25, 26.
Patent GB-817701-A (GB)
Title: Improvements in gymnastic apparatus
Inventor: CORNER FREDERICK
IPC: A63B9/00
Filed: 1954-05-18
Abstract: 817,701. Gymnastic apparatus. NEW EQUIPMENT Ltd. Aug. 18, 1955 [May 18, 1954], No. 14575/54. Class 132(1) A gymnastic apparatus comprises a substantially rectangular frame with horizontal top and bottom bars c, d which are detachably secured to two tubular end members a, b each of which has a triangular support structure with inclined stays e, g, f extending respectively forwardly, laterally and rearwardly of the tubular member. The stays may be provided with rubber shoes e<SP>1</SP>, g<SP>1</SP>, f' and may be connected by horizontal bars h and j. The ends of bar c have perpendicular portions c<SP>1</SP> which telescope into tubes a, b and may be held in the required position by pins k inserted through, coinciding holes. Bar d has end clips a<SP>1</SP> which embrace tubes a and b and are notched to fit over pins m thrust transversely through and projecting from the tubes a, b. In a modification, bar d may be a rectangular section balancing beam. As shown, a ladder n is suspended by hooks n<SP>1</SP> and held steady by two or more U-shaped members n<SP>2</SP> which embrace member d and may be secured by pins. Ropes o may be provided suspended from loose collars o<SP>1</SP>.
Patent GB-143916-A (GB)
Title: Improvements in or relating to dumping trucks and the like
IPC: B60P1/14
Filed: 1920-05-28
Abstract: 143,916. Wood, G. A. Dec. 26, 1916, [Convention date]. Tipping-wagons.-Relates to wagons in which the body is pivoted at its rear end to the chassis, its front end being lifted by hydraulic mechanism. According to the invention, the upper end of the piston-rod 16 carries a pivotally mounted equalizing-bar 22 from the ends of which are suspended pulleys 25 over which pass cables 31 attached at one end 30 to a fixed point such as the cylinder base and connected at the other end to depending brackets 26 secured to the body 4. In the arrangement shown, the brackets 26 lie outside the side-bars 1 cf the chassis, and are bent forwardly at 28, where they are secured by braces 29 to rails 5 which carry the body. The cylinder 10 is inclined rearwardly, and the pulleys 25 lie in vertical longitudinal planes. The cables 31 are preferably attached to the brackets 26 by means of a shackle 32 and pivot 33. In a modification, the cylinder 10 is vertical, and the brackets 26 are straight, the pulleys 25 being mounted transversely of the vehicle, and the equalizing bar, instead of comprising two bars 22 connected by bolts, as shown in Figs. 1 and 2, consists of a single bar of channel section. The piston-rod, which is of tubular formation, and the cylinder 10 form a reservoir for the operating liquid which is forced to the underside of the piston by means of a pump 13 operated from the propeller shaft 14 by means of a clutch 15. The cylinder and pump are carried by transverse angle-bars 8 mounted on the chassis 1. The bar 22 may in some cases be fixed to the piston-rod 16.
Patent GB-1173703-A (GB)
Title: Constant Conductivity Alloys.
Inventor: OGREN JOHN ROGER
IPC: H01B1/02
Filed: 1968-03-27
Abstract: 1,173,703. Alloys. TRW Inc. March 27, 1968, No. 14804/68. Heading C7A. An alloy having substantially constant conductivity over the temperature range of 70‹ -500‹ K. consists, by weight, of:- The alloy may be made by melting a mixture including a W-25% Re master alloy. Alternatively, a device may be fabricated by painting a slurry of the alloy components on a ceramic substrate and heating to produce alloy formation.
Patent GB-1284142-A (GB)
Title: Filamentary carbon materials and process for manufacture
IPC: D01F9/32
Filed: 1970-03-26
Abstract: 1284142 Treating polyacrylonitrile filaments GREAT LAKES CARBON CORP 26 March 1970 [2 April 1969] 14809/70 Heading B5B [Also in Division C1] In preparing carbon or graphite filaments a polyacrylonitrile filamentary material is subjected to a preliminary tension-free non-combustive oxidation in air at a temperature of 200-250 C. for from 1 to 8 hrs. followed by stretching of the partially oxidized material by up to 200% of its original length in a steam or boiling water environment before being subjected to the conventional steps of non-combustive oxidation under tension and carbonization in a non-oxidizing atmosphere at a temperature of at least 700C. The polyacrylonitrile filamentary material may have been stretched to 150% of its length before being subjected to any oxidation treatment.
Patent GB-612051-A (GB)
Title: Coupling for pressure-water spraying hose for horticultural, agricultural and viticultural purposes
IPC: F16L27/08
Filed: 1946-05-16
Abstract: 612,051. Pipe joints. WOOD, C. H., and BRODRIBB, M. T. May 16, 1946, No. 14842. [Class 99 (i)] A swivelling hose coupling comprises a socket 2 and an assembly adapted to be introduced into the socket and compressed against its base 3, including a tube 8 adapted to be secured to a hose at its outer end, a collar 3 fast on the tube, ball-bearings 12, a loose collar 11, packing 13 and a cap or gland-nut 7. In a modification the packing is compressed between two loose collars, the ball-race being between the fast collar and and the gland-nut.
Patent GB-672476-A (GB)
Title: Hot water measuring device on the calorimeter principle with registration according to the evaporation principle
IPC: G01K17/06
Filed: 1950-06-14
Abstract: 672,476. Measuring heat quantities. INGENIORFIRMAET C. BRUN AKTIESELSKAB, C.B. VARMEMALER AKTIESELSKAB. June 14, 1950 [June 18, 1949], No. 14853/50. Class 97 (iii). A hot water measuring device comprises a Venturi element VE, or the like, built into the main supply line R<SP>1</SP> to produce a pressure drop proportional to the square of the main flow, a substantially frictionless divided flow circuit R<SP>2</SP> including one or more nozzles N, a calorimeter K included in circuit R<SP>2</SP> having a volume of the same order as the divided flow conveyance at maximum quantity drained, and a closed translucent measuring ampulla A. The ampulla A consists of a reservoir, containing the liquid to be evaporated, inserted in a pocket of the calorimeter and a vertical condensing tube M sealed into the reservoir for collecting the evaporated liquid to indicate the quantity of heat drained off. A metal sheet T is soldered to the pipes R<SP>2</SP>, R<SP>2</SP> to prevent heat being conducted along them to the calorimeter and it may constitute a wall of, or a support for, a protective casing surrounding the calorimeter. To obtain consistent registrations in different installations the width of the reservoir is made several times that of tube M, the inside diameter of the latter is the same throughout its length and the length of tube M within the reservoir is constant. The ampulla may be of polymethacrylic acid methylester or other translucent thermoplastic material.
Patent GB-753774-A (GB)
Title: Improvements in and relating to alarm watches
IPC: G04B23/10
Filed: 1954-05-21
Abstract: 753,774. Watches. MANUFACTURE DES MONTRES & CHRONOGRAPHES PIERCE SOC. ANON. May 21, 1954 [June 25, 1953], No. 15072/54. Class 139. A watch has an alarm device adjustable to give one of two different sound intensities. The stem of the pusher 1 has a pinion 2 which engages a rack 3 of a lever 4 which may be moved by rotation of the pusher 1 to either of two positions. In the first position of the lever 4 a stud 5 carried thereby is located between the hammer 6 and the spring gong 7. In the other position of the lever 4 the stud 5 is away from the hammer 6. The hammer actuating wheel 9 is mounted on its spindle by an adjustable friction clutch.