baber/WOPTO huggingface dataset:
Patent GB-773448-A (GB)
Title: Improvements relating to change-speed gears for tractors
IPC: F16H3/32
Filed: 1955-08-02
Abstract: 773,448. Tractor driving gear. MOTO-STANDARD GES. Aug. 2, 1955 [Aug. 2, 1954], No. 22113/55. Class 79(2). [Also in Group XXIV] Change speed gearing for a tractor has a two-speed gear in series with the normal change-speed gearing and on the shaft of the two-speed gear is a reversing gear at least one of the gear wheels of which intercalates into the space between the wheels of the normal change-speed mechanism. A hollow driven shaft 17 has gears 18, 19 engageable with gears 14, 15, 16, on a shaft 7 to form a normal three speed gear. A compound gear 11 on a shaft 8 engageable with gears. 12, 13, on shaft 7 forms a two speed gear in series with the three speed gear. Also on the shaft 8 are gears 21, 22, driven in opposite directions from an engine driven shaft 3. A clutch 23 engages one or other of the gears 21, 22 to the shaft 8. As shown, the gear 21 extends into the space between the gears 15, 16. The three speed gear has the usual reversing pinion 20. The driven shaft 17 has a worm 30 driving a worm wheel 31 within which is a limited differential 34. Shafts 35, 36, emerging from the differential drive road wheel shafts 39, 40 through reduction gearing 37, 41, and 38, 42. A power take-off shaft 2 passes through the hollow shaft 17 and this may be driven directly from the shaft 8 through gearing 9, 29, or from the hollow shaft 17 by actuation of a clutch member 28. A towing bar pivoted on the floor 43 of the gear casing 1 is guided in a horizontal slot 47 in an extension 48 of the rear cover 10 of the casing 1.
Patent GB-238720-A (GB)
Title: Improvements in apparatus for treating fish offal for the preparation of fish meal
IPC: A23K1/10
Filed: 1924-09-19
Abstract: 238,720. Phillips, E. B., and West, W. Sept. 19, 1924. Fatty oils, extracting by pressure &c. - An apparatus for treating fish offal to convert it into fish meal comprises a vertical closed cylindrical casing a containing an inner perforated cylinder b; steam is admitted from pipes s to the space between the cylinders to cook the offal. After cooking, the offal is compacted by a piston c actuated by a hydraulic cylinder f, the expressed moisture passing through a grid t'o a steam trap k arranged in the bottom g of the casing. The bottom g is formed as a massive slide block carried on wheels l running in channel rails m. Ramps n are arranged alongside, the rails below the casing a, and are adapted to engage the bottom g as it moves to it's operative position and to force it tightly home against the lower end of the casing. The bottom g is moved by a hydraulic cylinder i. After the offal has been compacted and the moisture expressed the bottom g is moved to one side and the piston c actuated to discharge the compressed mass into a wheeled tub u, the inner cylinder b being tapered outwardly at its lower end to facilitate the discharge.
Patent GB-665409-A (GB)
Title: Improvements in or relating to electrically-operated level indicating arrangements
Inventor: MOHIER LUCIEN
IPC: G01F23/24
Filed: 1949-08-25
Abstract: 665,409. Shoots and hoppers. PREPARATION INDUSTRIELLE DES COMBUSTIBLES. Aug. 25, 1949. [Sept. 1, 1948] No. 22127/49. Class 78 (i). The electrical resistance between a pair of electrodes contacting the material in a hopper controls a level indicating or recording device. The electrodes, one of which is suspended from the mouth of the hopper and the other of which is secured to the hopper, are connected in a bridge circuit at C, D. When there is an open circuit between the electrodes, i.e. when the hopper is not filled, the bridge is balanced so that the voltage e applied to the grid of a triode Tu is zero and thus the maximum anode current i will flow through the triode and a resistor N. The resultant volt drop across N will ensure that the voltage applied to the gas filled relay Th will be insufficient to allow it to operate. When the resistance between C-D decreases, due to the accumulation of material between the electrodes, the bridge becomes progressively unbalanced and the grid of Tu is given a progressive negative bias which progressively decreases the anode current i, and thus the volt drop across N, until the voltage applied to the relay Th is high enough for it to operate so operating an indicator M. The relay Th is chosen so that its fully saturated current is insufficient to damage the indicator M. To vary the value of the resistance between the electrodes which is necessary to operate the indicator M, so that this device can be used with various materials, the resistance m is made variable and the area of the electrodes can be altered. Specification 8791/12, [Class 39 (iii)], is referred to.
Patent GB-1192887-A (GB)
Title: Swivelable Exhaust Deflection apparatus for Afterburning Gas Turbines Engines
IPC: F02K1/00
Filed: 1968-05-10
Abstract: 1,192,887. Deflecting propulsion jets. UNITED AIRCRAFT CORP. 10 May, 1968 [31 May, 1967], No. 22163/68. Heading B7G. [Also in Division F1] In a jet propulsion engine having an afterburner 8 and a jet pipe and nozzle construction comprising a plurality of relatively rotatable sections 18, 22, 28 which when adjusted effectively deflect the pipe to provide a thrust deflection, a duct 35 for cooling air is formed on the inner periphery of the pipe by liner portions 36 and is so constructed that a greater degree of cooling is effected on the outer part of the deflected pipe than on the inner part. This control may be effected by flow restrictors 38 positioned in the cooling air duct 35 at the bearings between the rotatable sections so that when the sections are rotated the restrictors overlap on the inner curved wall of the deflected pipe and leave free flow on the outer curved wall, or by perforating those parts of the wall of the cooling duct that are positioned on the outside of the deflected pipe.
Patent GB-617927-A (GB)
Title: An improved street lighting system and lamps therefor
IPC: F21S13/00
Filed: 1946-07-25
Abstract: 617,927. Lighting systems ; street lamps. HOLOPHANE, Ltd., and HOLMES, J. G. July 25, 1946, No. 22192. [Classes 75 (ii) and 75 (iv)] A street lighting system for illuminating two traffic lanes comprises spaced lamps at both sides of the street each concentrating the light into two principal beams, one beam B<1>, Fig. 2, directed slightly inward and the other B<2> directed more sharply inward. Each lamp may be provided with a refracting shade formed with vertical prisms, P<1>, P<2>, Fig. 3, for directing the light into the beams B<1>, B2, a lug E on the shade co-operating with locating means on the lamp for ensuring that the axis of symmetry of the two beams is inclined to the plane D at right angles to the direction of the street. The shade may be in two or more parts and may comprise horizontal prisms for refracting the light in vertical planes into a wide hollow cone. Existing forms of prismatic glassware giving a pair of symmetrical beams may be fitted with a supplementary refractor, having vertical prisms which deflect all the radial rays in the beams through the same angle, and located either inside or outside the existing shade. Specifications 351,761 and 576,591 are referred to.
Patent GB-225305-A (GB)
Title: Improvements in folding mechanism for printing presses or the like
IPC: B65H45/16
Filed: 1923-09-04
Abstract: 225,305. Marks, E. C. R., (Goss Printing Press Co.). Sept. 4, 1923. Folding paper. - In folding-mechanism for printing-presses and the like of the type in which the sheets are carried on the periphery of a rotary folding-member which also carries a cam-actuated rotary tucker blade cooperating with a pair of rotary folding- rollers 70, 79, Fig. 2, means are provided for varying the place of actuation of the cam relatively to the folding-rollers. When the folding-roller 79 is adjusted away from the other folding roller 70, to accommodate a greater number of sheets of paper, the cam 23 and the ring 32 which control the tucker blade are both bodilymoved round so that the blade will be timed to strike exactly midway between the rollers 70, 79. This adjustment is made by slackening the bolts in the slotted lugs 42, 43 and 58 rotating a tangential screw 60 which turns the ring 32 and the cam 23 round to the desired position, and then re-tightening the bolts. Fig. 4 shows means for adjusting the folding-roller 79, comprising a hand-wheel 108 actuating wedges 100 sliding between retaining nuts 102 and a fixed end, so that the arms 90 carrying the roller 79 are retracted slightly. The roller 79 is yieldingly held in position by springs 91 in cylinders 88 encasing the supporting arms 90. Fig. 6 shows one of the wedges 100 with an internally threaded hub 104 and a recess 101 to engage the end of the rod 90. Specifications 225,304 and 225,306 are referred to.
Patent GB-807008-A (GB)
Title: Ring roller mill
IPC: B02C23/00
Filed: 1957-07-15
Abstract: 807,008. Roller-and-ring mills; impact pulverizers; separating solid materials. PETERS, W. July 15, 1957 [July 14, 1956], No. 22400/57. Classes 59 and 117 In a roller-and-ring mill comprising an air or gas separator 6, Fig. 1, and a grinding roller 2 co-operable with a rotatable grinding ring 1 which is provided with thrower blades 3 for centrifuging material to be ground into a separator line 5, the inlet 8 for the fresh material is connected to the separator line above the centrifuging region of the throwr blades. The separator air, or gas, which may be heated, is supplid at 9. The grit separated in the separator 6 is supplied to the grinding chamber through a line 7. In a modification, Fig. 2, the mill is provided with a pre-separator 11 for separating coarse pieces of material which are returned, by means of pipes 14, to the centrifuging region or to a point of the separator line between the centrifuging region and the air inlet 9. The pre-separator comprises a break 12 in the separator line, which break is surrounded by a packet 13 and is adjustable by means of a telescopic tube 15.
Patent GB-240003-A (GB)
Title: Manufacture of tanning substances
IPC: C14C3/20
Filed: 1924-09-23
Abstract: Tanning agents are prepared by treating a resinous phenol condensation product with an aromatic or aliphatic sulphonic acid containing an exchangeable halogen other than an aralkylhalide sulphonic acid, or alternatively by first treating phenol with such a sulphonic acid and then condensing with an aldehyde.  In examples a solution in caustic soda of the resin from sulphur chloride and phenol is heated under pressure with sodium 1-chlor-4-nitrobenzene-2-sulphonate, the product being used as such to obtain yellow leathers, or it may be evaporated to dryness or reduced to the corresponding amino compound, also a tanning agent; a solution in caustic soda of a phenolformaldehyde condensation product is refluxed with aqueous 2.4-chlorbenzene sulphonic acid, the resulting solution being acidified and filtered: the product from sodium a -chlorethane sulphonate and b -tetrahydronaphthol is dissolved in water and condensed under a reflux with formaldehyde in presence of hydrochloric acid; and a caustic soda solution of a cresol-acetaldehyde or paraldehyde resin is treated with sodium 1-chlor-2-nitrobenzene-4-sulphonate and the product acidified.
Patent GB-728572-A (GB)
Title: Vat dyes of the pyrazolanthronyl series and process of preparing the same
IPC: C09B5/06
Filed: 1953-08-14
Abstract: A greenish navy-blue dye is prepared by fusing with alcoholic caustic alkali at 110-160 DEG  C. a compound of the formula <FORM:0728572/IV (c)/1> in which X is chlorine or bromine, until the resulting product is substantially free of halogen.  The said compound is prepared by condensation of 6Bz.1-dibromo- or dichloro-benzanthrone with pyrazolanthrone.  An example describes the process using caustic potash and methanol at 140-145 DEG  C.
Patent GB-430216-A (GB)
Title: Improvements in wringers for laundry purposes
IPC: D06F45/00
Filed: 1934-08-03
Abstract: 430,216. Wringers. TENNANT, W. J., 111, Hatton Garden, London.-(Williams, C. B. ; Kinsman, Ohio, U.S.A.) Aug. 3, 1934, No. 22709. [Class 138 (ii)] One of the pressure rollers 11, Fig. 6, of a wringer is journalled in bearings 32 carried by the underside of the pivoted cover 23 of the frame 15. The other pressure roller 10 is journalled in blocks 35 slidably mounted in the frame 15 and provided with studs 36 engaging sockets 37 pivoted at 38 in the frame 15. As shown the pressure rollers when in the operative position are in the same horizontal plane whilst the pivot 38 is somewhat below this plane. Pressure springs 39 are confined between the blocks 35 and the socket members 37. Feeding rollers 12, 14 are journalled at each end in a block 63 and are yieldingly pressed into engagement with the pressure rollers by light springs 78. The blocks 63 are provided with projecting pins 65 engaging slots in a sub frame 53 whereby the feed rollers can rock relatively to one another or in unison as required. The cover 23 is normally latched to the frame 15 by latches 45, Fig. 4, on a rock shaft 43 journalled in the cover, the latches engaging pins 46 projecting within the frame 15. Depression of one of two buttons 81 positioned at the two ends of the frame and engaging the latches releases the latter ; the springs 78, 39 then raise the cover and release the pressure between the rollers. The blocks 63 are provided with projections 88 which, when either roller 12, 14 is depressed abnormally during the passage of goods, engages one arm 89 of a bell-crank lever pivoted in the frame, the other arm releasing the latches 45. The drive is transmitted from an external source through a shaft 114, Fig. 5, which is provided within the casing 15 with a gear wheel 116 normally engaging a gear wheel 117 on the shaft 29 of the pressure roller which is journalled in the cover 23 ; the raising of the latter-whether manually by depression of a button 80 or automatically upon abnormal movement of a feed roller-therefore simultaneously disconnects the drive. The arrangement of rollers also permits feeding of goods from either side without reversing the direction of rotation of the rollers. The goods are stripped from the feed rollers and directed to the nip of the pressure rollers by a stripper and guide 70, Fig. 7, carried by the blocks 63 and they are stripped from the pressure rollers by pivoted curved plates 130 and are directed to either side by a pivoted flap 140. The gap in the frame at the side opposite to that at which the goods are being fed is closed by a plate 150 which is linked to the pivoted drip tray 160 whereby movement of the latter to direct the discharged water to the appropriate side is transmitted to the plates 150. The tray is held in either position by knobs 170 engaging depressions 171. Undue opening movement of the cover 23 is prevented by the engagement of a hook 84, Fig. 5, carried thereby with stops 86 provided within the frame 15.
Patent GB-963829-A (GB)
Title: 17ª,21-alkoxy-methylenedioxy pregnenes and pregnadienes and process therefor
Inventor: ERCOLI ALBERTO
IPC: C07J5/00
Filed: 1962-06-13
Abstract: The invention comprises steroids of the general formulae: <FORM:0963829/C1/1> <FORM:0963829/C1/2> wherein X represents a methylene, b -hydroxymethylene, or carbonyl group, Y represents hydrogen or fluorine, R represents an alkyl group containing 1 to 3 carbon atoms and R1 represents hydrogen, chlorine or fluorine or a methyl group, and the preparation thereof by reacting the corresponding 17a , 21 - dihydroxy - 20 - keto - steroids with an excess of the required alkyl orthoformate in the presence of an acid catalyst, for example an aromatic sulphonic acid, a Lewis acid such as stannic chloride or antimony pertochloride, or a salt of an organic base with a mineral acid such as pyridine hydrochloride. 2-Methyl-D 4-3, 20-diketo-17a , 21-dihydroxysteroids are prepared by reacting steroids of the first general formula above with diethyl oxalate and sodium methoxide, treating the resulting corresponding 2-enolate with methyl iodide to form the corresponding 2-methyl compound, and removing the grouping protecting the 17-dihydroxy-acetone side chain with a mineral acid in hot methanol. 11b -Acyloxy-17a , 21-dihydroxy-steroids are prepared by treating steroids of the above general formulae wherein X represents hydroxymethylene in the first general formulae with an acylating agent to form the corresponding 11b -acyloxy compounds, and then hydrolysing the 17a , 21-alkoxymethylene group with a mineral acid. 11b , 21-Dihydroxy-D 16-steroids are prepared by dehydrating at the 16, 17-position the above 11b -acyloxy-17a , 21-dihydroxy-steroids with phosphorus oxychloride or thionyl chloride and then hydrolysing the 11b -acyloxy group in the resulting 11b -acyloxy-21-hydroxy-D 16-steroids.  17a -Monoformates of 17a , 21-dihydroxy-steroids are prepared by hydrolysing the 17a , 21-alkoxy-methylenedioxy steroids of the above general formulae with dilute mineral acid or with an organic acid to form a mixture of the 17a -monoformates and 21-monoformates and separating the two formates from one another. Specification 894,168 is referred to.
Patent GB-478603-A (GB)
Title: Improvements in and relating to the temperature measuring devices used in reaction vessels for the hydrogenation of carbonaceous materials
IPC: G01K1/08
Filed: 1936-08-19
Abstract: 478,603. Thermometers. POTTS, H. E. (International Hydrogenation Patents Co., Ltd.) Aug. 19, 1936, No. 22797. [Class 97 (iii)] A casing C containing thermo-elements E and protruding into the high pressure space within the reaction vessel A of a plant for the hydrogenation of carbonaceous material is connected with alarm devices or pressure measuring devices F which detect leakages through the walls of the casing C. As shown, the casing C is double walled. The space between the two walls may be filled with hydrogen or nitrogen at a pressure only slightly ,different from that within the vessel A so that the outer wall need only be made of thin material. The casing C may however comprise a single walled tube closed at the bottom and tightly fixed at the top to a moulded piece through which the leads to the thermo-element pass by a construction similar to that in a sparking plug. The casing C may be braced in the operative position by means of chains or guide rings.
Patent GB-598240-A (GB)
Title: Improvements in or relating to holders for boring tools
IPC: B23B29/034
Filed: 1944-11-17
Abstract: 598,240. Boring - heads. BOWDLER, J. A., and BELLAMY, E. W. Nov. 17, 1944, No. 22804. [Class 83 (iii)] Boring-heads have the cutter carrying member rotatable, for adjustment of diameter of cut, about an axis eccentric to that of the hole. The shank 1, Fig. 1, has a slightly eccentric spigot 2 that carries a sleeve 3 having roughing and finishing cutters 4 secured by screws. An enlargement 5 of the sleeve mounts a worm engaging a worm-wheel 7 on the spigot and is slotted at 10, Fig. 7, for clamping by a screw 11 after adjustment. The thrust flange on the worm spindle has a segment removed to clear the worm-wheel during assembly. Graduations on the flange 12 assist in adjusting the cutter, but preferably do not directly give cut diameter. If, however, a direct reading scale be adopted separate zero marks are required for different materials, and these may be provided on interchangeable rings. In a modification for boring small holes, the sleeve is shortened, increased in diameter and provided with an inclined slot to receive the shank 4a, Fig. 6, of a single point boring-tool. Axial adjustment of the cutter in the slot provides a rough diameter setting prior to clamping at 14. The spigot is recessed at 2a to clear the end of the tool. In another form, the worm 6, Fig. 7, has a thrust collar 15 screwed on the spindle and locked by a screw 16 of finer pitch or opposite hand. In another form, the spigot is tapered and the flange 12 carries an annular projection seating in a groove in the enlargement 5. In a further form, the spigot has a conical seating located between the flange 12 and the worm-wheel. The worm-teeth may extend round part only of the spigot as shown in Fig. 7 to prevent use of that part of the eccentric throw that would cause dig-in, in the event of slipping during cutting.
Patent GB-461667-A (GB)
Title: Improvements in or relating to governing means operating by fluid pressure, and particularly to speed-sensitive governing means for injection pumps
IPC: F02D1/00
Filed: 1935-08-13
Abstract: 461,667. Fluid-pressure servomotors. AUTOMOTIVE PRODUCTS CO., Ltd., and TRAPP, G. J. Aug. 13, 1935, No. 22819. [Class 135] [Also in Group XXVIII] A feed pump 12 supplies fuel through the passage 26 to a fuel injection pump 10. A plunger 27 is mounted in the passage 26 and is of smaller diameter than the passage. The plunger 27 is loaded by the springs 31, 33 and is connected to a lever 39 mounted on an adjustable fulcrum 42 and connected to the regulating rack 45 of the fuel injection pump. The chamber 17 is fitted with a relief valve 20 which keeps the pressure constant or causes it to rise as the valve 20 opens. The pressure on the plunger 27 is proportional to the speed of the engine and adjusts the output of the fuel. In the construction shown the spring 31 controls the idle running speed and the spring 33 the maximum speed. The plunger 27 is shown as having a parallel portion 34 and a tapered portion 35. In modifications the plunger has two parallel portions joined by a tapered portion, or the plunger is tapered and works in a tapered bore, or has a projection or projections and in the latter case it has a valve seating to cut off the flow when the engine is at rest. The plunger may be loaded by a single spring.
Patent GB-889236-A (GB)
Title: Improvements relating to bed-settees
IPC: A47C17/13
Filed: 1960-06-30
Abstract: 889,236. Bed settees. GREAVES & THOMAS Ltd., and COBB, W. R. June 30, 1960, No. 22930/60. Class 52(2) A bed settee (Fig. 1) has a seat 1 and backrest 2 pivotally connected to each other and the frame 3 by links at 4 so that actuation of pedal 7 through links 10 and 5a will move the seat and back into the same plane against the action of a spring 6. The pedal may be extended at 11 for raising the back. In another embodiment (Fig. 3) the seat 1 is drawn forward from its inclined seat position by depressing pedal 7a to rotate link 28, the rear of the seat riding on roller 12 in track 13, so as to provide a horizontal bed surface: the pedal 11a returns the seat into the seat position.
Patent GB-238089-A (GB)
Title: Improvements in or relating to locks or fastenings for attache cases and the like
IPC: E05B65/50
Filed: 1924-09-30
Abstract: 238,089. Hill, W. J. Sept. 30, 1924. Hasp fastenings. - The bolt-operating knob a of a hasp fastening for attachÚ &c. cases is blocked against accidental retraction by lugs c<2> on a ring c mounted on a fixed centre behind the knob, the ring being turned through a right angle to blocking position. Projections on the casing bear against the inner circumference of the ring, and two of the projections co-operate with a projection on the ring to limit its rotation. A projection on the knob may lie over the hasp in the engaging position, or a cranked bolt projecting through the casing, as described in Specification 205,740, may be used.