baber/WOPTO huggingface dataset:
Patent GB-711925-A (GB)
Title: Improvements in or relating to process for sweetening hydrocarbon oils
Inventor: KRAUSE JACK HARRY
IPC: C10G27/08
Filed: 1952-02-21
Abstract: Mercaptan-containing hydrocarbon oils are sweetened by intimately contacting them, in the liquid state, with a catalyst consisting essentially of an inert adsorbent material, copper fluoride and at least about 8 per cent. by weight of water, at a temperature between about 190 DEG  and 230 DEG  F., and in the presence of free oxygen. Hydrocarbon oils mentioned are petroleum distillates such as naphthas, kerosene, Diesel oil, furnace oil and heater oil.  The inert adsorbent may be Fuller's earth, attapulgus clay, silica gel, activated carbon or alumina.  In an example, the oil is washed with caustic soda to remove H2S and then passed through a rock salt filler to remove traces of caustic soda.  The oil is then heated to 190-230 DEG  F., saturated with water and blown with air or commercial oxygen.  A slurry made up of hot oil and the catalyst, which consists of 72 per cent. by weight of Fuller's earth, 8 per cent. of copper fluoride and 20 per cent. of water, is then pumped into the oil and the mixture allowed to settle.  The oil is decanted, washed with water, cooled, and finally dried by passage through a salt filter. The catalyst may be revivified by addition of water to the spent catalyst-oil slurry and contacting this with oxygen.
Patent GB-753993-A (GB)
Title: Improvements in or relating to cable supporting devices
IPC: H02G7/05
Filed: 1954-02-17
Abstract: 753,993. Supporting cables. ESSANDEM WORKS & McPHERSON, Ltd., and HAYES, E. F. Feb. 14, 1955 [Feb. 17, 1954], No. 4602/54. Class 36. A cable supporting device comprises a collar 5 embraced by a wire loop 8, a channel-section member 10 having sides 15 of decreasing height and secured to the free ends of loop 8, and a second channel-section member 16 telescopically engaging the member 10 and clamping by wedging action a cable 22 laid between the bases of said members 10, 16. The ends of the loop 8 are passed beneath bridges 13 formed in the base of member 10, the bridges being pressed down to secure said ends. The base of member 16 is formed with transverse ribs 21 which grip the cable 22 as the member 16 is pushed along the member 10, any pull on the cable 22 tending to tighten the clamping effect. The collar 5 loosely surrounds a pillar 4 secured to the wall W of a building, so that the device is capable of swinging in a horizontal plane.
Patent GB-992927-A (GB)
Title: Improvements in filtration apparatus
Inventor: BALFOUR GERALD PETER
IPC: B01D33/04
Filed: 1963-02-05
Abstract: 992,927. Travelling-band filters. STOCKDALE ENGINEERING Ltd. Feb. 4, 1964 [Feb. 5, 1963], No. 4751/63. Heading BID. [Also in Division B8] b<SP>3</SP> formed at each edge, which sealingly engages in a slotted tubular passage b<SP>1</SP>. Fig. 3, the passages b<SP>1</SP> extending lengthwise along each side of a trough a<SP>6</SP> having a drain pipe a<SP>2</SP>. Solid material enters shoot a, Fig. 1, and is delivered by rotary distributer a<SP>1</SP> to the belt B, which is supported by a plate B<SP>1</SP>. As material travels along on belt B, hot sparging liquor is delivered to it by connection a<SP>5</SP>, filters through the material and belt and is withdrawn as wort. The beads b<SP>3</SP> may be formed by sewing lengths of rope to the edges of belt B.
Patent GB-746663-A (GB)
Title: Improvements relating to thermostatic mixing valves
Inventor: HOLLANDS HERBERT WILLIAM
IPC: G05D23/13
Filed: 1952-02-23
Abstract: 746,663. Thermally-actuated valves. THERMOSTATIC MIXING VALVE CO., Ltd. March 3, 1953 [Feb. 23, 1952], No. 4810/52. Class 135. In a thermostatic mixing valve for mixing water and steam in which the fluids are controlled by a valve having tapering head portions 32, 33 operating respectively in tapering bores 31, 30 under the control of a thermal element, e.g. the bimetal coils 44, 45 acting through the screw 42 in the mixing chamber 13, thermal communication between the element and one of the fluids before mixing, e.g. the hot fluid in inlet 21, together with frictional engagement between the head portion 33 controlling this fluid and its bore is such that the head stops the flow of this fluid for a substantial period if the other fluid, e.g. the cold, fails. The wall 19 is made a good thermal conductor and the apex angle of the coned heads is so chosen that, although the valve is frictionally held closed, when cold water again flows in the inlet 23 its pressure on the cone 32 together with the action of the cold water on the thermal element via passage 28 will reopen the valve head 33. The construction and operation of the mixing valve is described in Specification 746,662.
Patent GB-266711-A (GB)
Title: Improvements in and relating to the manufacture of silica glass articles
IPC: C03B23/207
Filed: 1927-02-21
Abstract: 266,711. Quartz & Silice. Feb. 24, 1926, [Convention date]. Forming silica-glass articles. -A method of enlarging or building up an article of fused silica, by the addition of more material, consists in surrounding the article with pulverized silica and in heating it locally at the place to be enlarged, so that both the article and some of the pulverized silica become plastic and are fused together. In the construction shown, a tube b of fused silica is placed in a container f and is packed around with pulverized silica c. An electric heating element d, connected with supply leads e, is arranged in the interior of the tube. The part of the tube b surrounding the heater, and a part a of the pulverized silica, become plastic and are welded together. The element d may be heated by high-frequency induction, and the absence of the leads e enables a bottom to be fused on to the tube b. By raising the tube b and keeping the element d stationary, the tube can be lengthened by the progressive addition of the pulverized silica.
Patent GB-1268031-A (GB)
Title: Improvements relating to hydraulically operated disc brake assemblies for motor vehicles
IPC: F16D55/228
Filed: 1970-02-02
Abstract: 1,268,031. Disc brakes; slave cylinders. DAIMLER-BENZ A.G. 2 Feb., 1970 [5 Feb., 1969], No. 4840/70. Headings F2E and F2F. An hydraulically operated disc brake assembly includes two brackets 2 and 3 both of which straddle a disc 1 and are secured to an axle 13 and to which brackets 2, 3 are attached respective cylinder ports 4, 5 one on each side of the disc 1, each cylinder port 4 or 5 accommodating one or two cylinders having respective pistons actuable on brake blocks. As shown the brackets 2, 3 are fixed to the axle 13 by bolts 12 and have tapped holes 6 which receive bolts 7 to secure the cylinder ports 4, 5 to the brackets 2, 3. The brake blocks bear on the brackets 2, 3 which also have ducts 8, 9 which serve as hydraulic connections to the cylinder ports 4, 5. The brackets 2, 3 and the cylinder ports 4, 5 may be of different materials-the brackets 2, 3 of high grade material, and the cylinder ports 4, 5 of light alloy or grey cast iron.
Patent GB-1154661-A (GB)
Title: Catalysts Suitable for Oligomerization of Olefins.
Inventor: HILL THOMAS
IPC: C07C2/24
Filed: 1967-02-01
Abstract: 1,154,661. Oligomerisation catalyst. BRITISH HYDROCARBON CHEMICALS Ltd. 1 Feb., 1968 [1 Feb., 1967], No. 4874/67. Heading B1E [Also in Division C5] An oligomerisation catalyst containing Co or C is prepared by the successive steps of (1) bringing a Co compound supported on activated carbon into simultaneous contact with a gas containing molecular oxygen and a solution of alkali metal hydroxide, (2) heating the carbon on which the Co is supported in an inert atmosphere, the latter including a vacuum as well as nitrogen, argon and helium. In examples (CH 3 COO) 2 Co is impregnated onto C in the presence of air and NaoH solution.
Patent GB-513896-A (GB)
Title: Improvements in or relating to the extraction of protein from ground nuts
IPC: D01F4/00
Filed: 1938-02-16
Abstract: 513,896. Protein. McLEAN, A., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 16, 1938.No.4883. [Class 2 (iii)] Protein is extracted from ground nuts by adding gradually to an agitated aqueous suspension of finely divided blanched or unblanched ground nuts an aqueous solution of an alkaline substance so that the pH value of the mixture never exceeds 8.5, and finally remains between 8 and 8.5. The insoluble matter is separated and the protein is reprecipitated by neutralizing the alkaline substance with sulphur dioxide or by allowing acid-forming fermentation to occur in the solution. Suitable alkaline substances are sodium carbonate or hydroxide, ammonia and strongly alkaline salts such as sodium sulphide. Examples are given using sodium sulphide and sodium hydroxide. A mixture of indicators such as one of the so-called universal indicators or an indicator such as Phenol Red or Cresol Red along with litmus or Bromthymol Blue may be used. The products are suitable for conversion to filaments, e.g. by a wetspinning process.
Patent GB-433384-A (GB)
Title: Improvements in or relating to eye-protectors
IPC: A61F9/02
Filed: 1934-02-14
Abstract: 433,384. Goggles. BRITISH A.O. CO., Ltd., 39, Hatton Garden, London.-(American Optical Co. ; Southbridge, Massachusetts, U.S.A.) Feb. 14, 1934, No. 4954. [Class 97 (i)] An eye protector comprises a pair of separate and rigid eye cups 1 connected by a bridge 3 and shaped to conform to the contour of the orbital rim of the eye, each cup having a seat for a lens 2 which is inclined to the normal line of vision 9, and the inner walls of the cups being provided with angled portions 6 to increase the field of vision. The inner edges of the eye cups are provided with projections 17 that fit into the cavity between the eye and the nose. The lenses are inclined to the vertical.
Patent GB-669339-A (GB)
Title: Improvements in plowshares
IPC: A01B15/04
Filed: 1949-02-23
Abstract: 669,339. Ploughshares. LANFRANCO, C. Feb. 23, 1949. No. 4998/49. Class 6(i). A ploughshare has a flange along the leading front extending above and below the general plane of the share, the upper part of the flange forming an obtuse angle with the plane of the share with its upper edge forming a cutting edge, while the lower part of the flange forms the heel of the share and its surface is at less than 90 degrees to the general plane. The share blade a is so bent that the upper end point 2 of the leading edge is substantially higher than the rear 3 of the upper edge 4. The cutting edge 5 is approximately straight from the rear 6 to the middle of the blade and is then curved to form the front projection which ends in a sharp. point 7. The leading front edge is a knife b extending between the point 2 and the sharp point 7 and is formed by a crest with a cutting edge 10, Fig. 2. The side 11 of the knife b meets the main face of the blade a in a dihedral obtuse angle which is rounded so that the two surfaces merge in a depression 8 thus forming a smooth path for the cut earth towards the mould board. The opposite side 12 of the crest extending to a heel 13, is inclined at less than 90 degrees to the general plane of the blade a, Fig. 4, and is in the form of an isosceles triangle with an acute angle at the point 7 so that this point is a sharp spear-like member curved slightly downwards. In operation the side 12 is vertical, the knife b forming the leading end and also acting as a reinforcing rib.
Patent GB-501949-A (GB)
Title: Improvements in or relating to devices for cutting and clamping the needle thread ofsewing machines
IPC: D05B65/00
Filed: 1938-02-18
Abstract: 501,949. Sewing-machines. SCHMID, M., and SCHMID, K., (trading as SCHMID & CO.). Feb. 18, 1938, No. 5149. Convention date, Feb. 19, 1937. [Class 112] In a machine having a rotatable loop-taking bobbin-carrier 1 and a device for cutting and clamping the needle thread F comprising a slide-block 4 movable towards the axis of the bobbin-carrier against the action of a return spring 14, the slide-block pivotally carrying a thread gripping arm actuated by a cam, the gripper arm 7 forms the movable blade of a scissor-like pair of cutting and clamping jaws, the other blade 5 being fixed to the slide block 4, and the cam is constituted by a face 1a formed directly on the bobbin carrier 1 to co-operate with the arm 7. The slide-block 4 is moved to the operative position shown by means of an arm 15 connected to it by a rod 10 adjustably screwed into it, the return spring 14 acting on a shoulder on this rod. The arm 7, pivoted to a part 6 fixed to the block 4, is pressed towards the open position by a wire spring 8, this movement being limited by an adjustable stop screw 9 engaging the tail of the arm 7. The cam face 1a is formed in a groove in the bobbin-carrier 1 and has a concave end 1k to give the arm 7 a sharp closing movement to cut and hold the thread.
Patent GB-349076-A (GB)
Title: Improvements in bearings more particularly intended for steam heated rotary drying cylinders
IPC: F26B13/14
Filed: 1930-02-17
Abstract: 349,076. Hollow rollers or cylinders. OLSON, J., Stannary Hall, and CROSSLEY & SONS, Ltd., J., Dean Clough Mills, both in Halifax, Yorkshire. Feb. 17, 1930, No. 5318. [Class 34 (i).] A fluidtight joint is made between the trunnion of a steam-heated, rotary drying cylinder and the bearing thereof by means of a rubbing-collar device mounted upon a diaphragm. A periodically camoperated valve controls the discharge of condensation water from each cylinder of a battery connected to a common sump. A steam-heated rotary cylinder 1 is provided with a trunnion 2 rotating in a bearing 3 and maintained against axial displacement by an arcuate, ribbed, locking-plate 5 secured by studs 6 and in engagement with a recess 8 in the trunnion. A ground face on the trunnion engages a metal ring 9 carried by the diaphragm 10 held between the bearing and a cap 11 secured thereto. Steam is supplied through the passage 15 which contains a pipe 16 communicating with an outlet 17. The recesses 4, 13 are subject to atmospheric and steam pressure respectively. In a ball-bearing construction, Fig. 5, the trunnion 2 is operatively connected to the bearing 3 by locking members 22, 23. The steam inlet 14 and water outlet 17 extend through the cap 11. The outlets of a battery of cylinders communicate with a sump 26 provided with a gauge glass 29 and an outlet periodically opened and closed by a valve 31 operated by a cam 34 driven by a chain and sprocket wheel from a cylinder. The chain drives a wheel 40 loose on a spindle 43 and thereby rotates a mutilated pinion 39 engaging a pinion 38 on the cam shaft. The diaphragm acts as a vent and puts the cylinder into communication with the atmosphere when the pressure therein falls below atmospheric.
Patent GB-754343-A (GB)
Title: Improvements in the production of hydroxylammonium salts
IPC: C01B21/14
Filed: 1954-02-24
Abstract: In the catalytic production of hydroxylamine by the reduction of nitric oxide with hydrogen in aqueous acid medium, e.g. sulphuric acid, the catalyst consists of an alloy of platinum with another noble metal of the eighth group of the Periodic System, or silver or gold, with or without a carrier.  Carriers specified are graphite, active carbon, pumice, barium sulphate and kieselguhr. 1-10 per cent of silver, gold, iridium, or palladium may be employed, 1 per cent iridium and 5 per cent gold catalysts may be prepared by reduction of corresponding aqueous salt solutions with formic acid in the presence of graphite powder.
Patent GB-589598-A (GB)
Title: Improvements in prepayment mechanisms for meters
IPC: G07F15/04
Filed: 1944-03-23
Abstract: 589,598. Prepayment mechanism for meters. LANDIS & GYR SOC. ANON. March 23, 1944, No. 5407. Convention date, May 1, 1943. [Class 27] The coin mechanism of a prepayment meter comprises a coin carrier rotatable by hand or by a motor, and provided with a resilient base member which is deflected by the weight of the coin to control the setting of the quantity mechanism during the rotation, which rotation also displaces the base member, laterally to release the coin. The form shown is operable by any one of three coins, insertable through separate slots 2, 3 and 4 leading to respective compartments 6, 7 and 8 in a rotatable carrier block 9, where they rest on the edges 25 of cutout portions of spring blades 21, 22 and 23 normally closing the bases of the compartments. The coin of intermediate value is shown in compartment 7, and it depresses the blade 22 so that a depending pin 26 depresses an arcuate rail 36 about an axis 37 so that an arm 38 closes contacts 40 to energize a motor 20. The motor is connected to the carrier by gearing including a crank 15, which makes one revolution for each operation, and rocks the carrier to and fro once about a shaft 13 on which it is loosely mounted. At a point in the forward travel appropriate to the coin value, the pin 26 engages the intermediate one 30 of three stepped teeth in an arcuate member 28, carrying it forward for the remainder of its forward stroke and turning the shaft 13, to which the member 28 is secured through an angle proportionate to the value of the coin. This movement is transmitted through pawl and ratchet gearing 46, 47 to the quantity mechanism shaft 50. In the case of the other two compartments 6 and 8, the pins 26 on their blades 21 and 23 are so disposed as to engage respectively the furthest 29 and nearest 31 of the stepped teeth in member 28 so as to turn it an amount appropriately less or more when a coin is passed to either of these compartments. Coin - discharging mechanism. The coin carrier 9 has limited lateral movement against springs 12 on an intermediate plate 11 by which it is pivotally mounted on shaft 13. Towards the end of the forward stroke, the carrier is arrested by a stop 44 and the continued slight movement of the intermediate plate 11 displaces the blades 21-23, which are secured to it, laterally from beneath the compartments to release the coin. The circuit of the motor is maintained for the return stroke owing to the depressed blade having passed under a fixed guide 32 which retains it until the double stroke has been completed when the blade snaps up and breaks the motor circuit. Testing coins. Undersized coins slip between the edges 25 of the cut-out portion of the spring blades and pass straight to the till or are returned.
Patent GB-255358-A (GB)
Title: Improvements in or relating to counting apparatus.
Inventor: FREDERICK WEBB CHRISTOPHER
IPC: G07B11/05
Filed: 1926-02-25
Abstract: 255,358. Webb, C. F., and Bell Punch & Printing Co., Ltd. Feb. 25, 1926. Zcrozing mechanism- In a counter wherein the numeral wheels are frictionally connected with their spindle by spiral springs the zeroizing action disengages the actuating pawls from the numeral wheels and these pawls in their turn free the detents from the wheels to allow the springs to restore the wheels. The disengagement of the pawls is effected by a pin thrust into the casing to depress a lever k bearing on an extension g<0> of the actuating pawl carrier and this in turn displaces the detents i. The wheels are stopped in zero position by a lateral nose i<1> on each detent which nose lies in the orbit of a projection j at the side of each ratchet wheel f.
Patent GB-259102-A (GB)
Title: A process for the production of "blanc fixe" from barium sulphide
IPC: C01F11/46
Filed: 1926-02-25
Abstract: 259,102. Jahl, A. Nov. 5, 1925, [Convention date]. Barium sulphate or " Blanc Fixe " is prepared pure by precipitation with alkali sulphate from an aqueous solution of barium sulphide containing more molecules of hydrosulphide than hydrooxide. To effect this, 10 to 15 per cent of the sulphide is converted into hydrosulphide by the addition of the. requisite quantity of an acid, or acid salt such as a bicarbonate or magnesium chloride &c., and this may be done before or during the precipitation of the sulphate.
Patent GB-1452986-A (GB)
Title: Process for the preparation of stilbene-azo dyes
IPC: C09B56/04
Filed: 1974-02-06
Abstract: 1452986 Preparing stilbene-azo dyes E I DU PONT DE NEMOURS & CO 6 Feb 1974 [7 Feb 1973] 05433/74 Heading C4P Stilbene -azo dyes are prepared by tetrazotizing a diaminostilbenesulphonic acid, isolating the resulting tetrazonium salt, slurrying the tetrazonium salt with water and reacting with at least one coupler. Preferred couplers are naphthalene sulphonic acids having an amino and/or hydroxy substituent, phenols, aminobenzenesulphonic acids and aminobenzenecarboxylic acids. The preferred diaminostilbenesulphonic acid is 4,4<SP>1</SP> - diaminostilbene - 2,2<SP>1</SP> - disulphonic acid. The water-solubilizing cations preferred are a lithium base and/or an alkanolamine. In the preparation of solutions, urea is preferably used as a stabilizing aid. The aqueous dye compositions prepared by the above process are used to dye cellulosic materials, particularly cotton and paper, and leather.
Patent GB-105915-A (GB)
Title: Improved Process and Apparatus for Calcining and Roasting certain Ores.
Inventor: TISSIER LOUIS ETIENNE
IPC: F27B1/08
Filed: 1917-04-18
Abstract: 105,915. Tissier, L. E. April 28, 1916. [Convention date]. Lime.-The heat of exhaust gases of engines worked with poor gas is utilized by passing the gases through calcareous materials to be calcined for use in the manufacture of lime. Some wood charcoal may be mixed with the charge. The gases are admitted to a chamber R at the bottom of a cylindrical furnace A in which the charge is supported on a removable perforated plate G.
Patent GB-1377187-A (GB)
Title: Cathode ray tubes
IPC: H01J31/06
Filed: 1972-02-16
Abstract: 1377187 Sealing glass to glass EMI Ltd 16 Feb 1972 [26 Feb 1971] 5512/71 Heading C1M [Also in Division H1] The faceplate of an electrostatic printing cathode-ray tube comprises two glass blocks 2 and 3, Fig. 2, sealed together with a plurality of conducting paths 4 of deposited material extending between them from the interior to the exterior of the envelope. The paths 4 may be deposited on the block 2 by screen printing, or if greater accuracy is required by a photo-etching method. The two blocks are sealed together by fusion or by a glass solder, and the assembly is ground to remove excess solder or sealing distortion and joined to the remaining envelope portion by means of a glass frit. If desired a plurality of further conductive paths are provided on the inner surface of the faceplate before it is joined to the envelope; each further path extends normal to the line of paths 4 and intersects one of them so that the electron beam need not be aligned accurately on the line.
Patent GB-1532769-A (GB)
Title: Control switch with overcurrent protection
IPC: H01H71/00
Filed: 1977-02-10
Abstract: 1532769 Limit switch with overload trip H STOGER 10 Feb 1977 [11 Feb 1976] 05568/77 Heading H1N An on-off switch 2 having snap-action operation controlled by a device (e.g. bellows 3) sensing change in a physical quantity has also overload protection 1 which operates independently of the snap-action, the contact separation on overload being greater than that during normal switching. The sensor 3 operates via the omega-spring linkage 34, 36, 38 and 43, whereas the overload trip 1 releases the toggle linkage 17 and crank 24 which acts upon the movable contact carrier 30 or, in alternative arrangements, on both contact carriers. Electromagnetic, thermal and manual release of the overload trip is provided.