baber/WOPTO huggingface dataset:
Patent GB-201235-A (GB)
Title: Improved means for regulating and controlling paper making and the like machines
IPC: D21F7/02
Filed: 1922-04-26
Abstract: 201,235. Ironside, E. A., and Rose, J. W. April 26, 1922. Transmitting power.-Fluid power transmitting units e for driving the various parts of papermaking machines &c. are supplied from a common source, such as a pump b, through flow and return pipes f, g, and each unit has an automatic speed regulator, which may comprise a pump i driven by the motor e and supplying pressure fluid to a pilot valve l of a fluid relay o controlling a valve h in the pipe f. The speed may be hand adjusted by means of a valve n in a by-pass pipe m to the pipe k, and the valves n of the units may be adjusted relatively and collectively. In the form shown in Fig. 4, one element of a differential gear 8 is driven by a constant speed motor, the other element being driven by the motor e<2> through pulleys 13, 14 and shaft 11. If the speed of the motor e<2> varies, the differential adjusts the valve h<1> controlling the supply of fluid to the motor e<2>. The speed may be varied by adjusting the belt 12 on the pulleys.
Patent GB-795272-A (GB)
Title: Process for the manufacture of hydrogen peroxide
IPC: C01B15/023
Filed: 1956-04-18
Abstract: Alkylated anthraquinols (for use in the production of hydrogen peroxide) are produced by the catalytic hydrogenation of an alkylated anthraquinone in an organic solvent solution comprising an organic nitrogen base having a first dissociation constant greater than 1 X 10-10.  The base preferably has a solubility in water of less than 2 gm/l. at 25 DEG  C.  Bases specified are dibutylamine, diethylamine, tri-n-propylamine, dibenzylamine, diphenylamine, tribenzylamine, ethylene diamine, hexamethylene diamine, phenylene diamine, pyridine, piperidine, a - and b -naphthylamine, quinine, strychnine, o- and m-toluidine, and brucine.  The base may form the whole or part of the solvent. 0.1-1 per cent of base may be employed.  Non-basic solvents specified are benzene, toluene, isoheptyl alcohol, methylcyclohexanol, sec.-butyl alcohol, diisobutyl carbinol, alpha methyl naphthalene, diisobutyl ketone and methylcyclohexyl acetate. The hydrogenation catalyst may be Raney nickel, palladium, rhodium, or platinum, supported on alumina.  Alkylated anthraquinones specified are 2-ethyl, 2-isopropyl, 2-sec. butyl, 2-tert.-butyl, 2-sec.-amyl, 1 : 3-dimethyl, 2 : 3-dimethyl, 1 : 4-dimethyl and 2 : 7-dimethyl anthraquinone.  Specification 465,070, [Group IV], is referred to.ALSO:In the production of hydrogen peroxide by the successive catalytic hydrogenation and autoxidation of an alkylated anthraquinone, the hydrogenation is carried out in an organic solvent solution comprising an organic nitrogen base having a first dissociation constant greater than 1 X 10-10.  The base preferably has a solubility in water of less than 2 gm/l. at 25 DEG  C.  Bases specified are dibutylamine, diethylamine, tri-n-propylamine, dibenzylamine, diphenylamine, tribenzylamine, ethylene diamine, hexamethylene diamine, phenylene diamine, pyridine, piperdine, a - and b -naphthylamine, quinine, strychnine, o- and m-toluidine, and brucine.  The base may form the whole or part of the solvent; 0.1-1 per cent of base may be employed.  Non-basic solvents specified are benzene, toluene, isoheptyl alcohol, methylcyclohexanol, sec.-butyl alcohol, diisobutyl carbinol, alpha methyl naphthalene, diisobutyl ketone and methylcyclohexyl acetate.  The hydrogenation catalyst may be Raney nickel, palladium, rhodium, or platinum, supported on alumina.  Alkylated anthraquinones specified are 2-ethyl, 2-isopropyl, 2-sec.-butyl, 2-tert-butyl, 2-sec.-amyl, 1 : 3-dimethyl, 2 : 3-dimethyl, 1 : 4-dimethyl, and 2 : 7-dimethyl anthraquinone. Specification 465,070 is referred to.
Patent GB-1299081-A (GB)
Title: Improvements in and relating to crash barriers
Inventor: PEARSON LEONARD CHARLES
IPC: E01F15/04
Filed: 1969-03-05
Abstract: 1299081 Vehicle crash barriers L C PEARSON 4 March 1970 [5 March 1969] 11824/69 Heading E1G A hollow crash barrier rail 1 is frangibly connected to each of its posts 2 by a latch 5 of T or hook (Fig. 6, not shown) shape which is inserted through an opening 3 in the bottom or side wall of the rail and then bolted to the post, either the bolt 6 or the cross bar of the latch 5 being frangible. The connection shown also includes a protrusion 4 on the post which loosely engages the same or another aperture 3 and which is wholly or partly withdrawn on impact. The posts may be of Z, I or U section disposed to be weak in the direction longitudinally of the rail.
Patent GB-1006098-A (GB)
Title: A gas-discharge lamp having a coiled cathode
IPC: H01J61/067
Filed: 1962-03-28
Abstract: 1,006,098. Discharge lamp electrodes. QUARHLAMPEN G.m.b.H. March 28, 1962 [April 1, 1961], No. 11847/62. Heading H1D. A cathode, particularly for a H.P. mercury vapour discharge lamp, comprises an activated tungsten coil 1 which is wound around a support wire 2 to form a coiled coil and extends from the discharge end of the support wire towards the anode as a simple coil 3. The portion 3 of the coil has a constant diameter and is coaxial with the support wire 2. The support wire 3 can form the leading-in wire of the lamp. Dimensions are stated.
Patent GB-436876-A (GB)
Title: An improved material for electrical insulating purposes
IPC: D06M15/39
Filed: 1934-04-19
Abstract: An impregnating-composition for electric insulation purposes comprises a non-oxidizing or slightly oxidizing stearin pitch--obtained by controlled distillation of cotton seed--and a synthetic resin insoluble in mineral, but soluble in fatty oils such as castor oil, e.g. synthetic resins made from phthalic anhydride with glycerine and oleic acid or treated phenolformaldehyde or cresol-formaldehyde condensation products. The compositions may contain 1--76 per cent of synthetic resin and castor oil up to 20 per cent may be added to increase tackiness.  Examples are given.
Patent GB-591528-A (GB)
Title: Improvement in coupling means
IPC: F16D3/10
Filed: 1945-05-11
Abstract: 591,528. Automatically-adjustable couplings. CLEVELAND, F. J. (Bendix Aviation Corporation). May 11, 1945, No. 11899. [Class 80(ii)] [Also in Group XXVII] In an automatically-adjustable coupling timing ignition in a magneto drive, the driving and driven members are connected by means which, with increase of speed, effect relative circumferential movement between the members in different directions over different speed ranges, whereby the spark is advanced with increase of speed over one speed range and retarded with speed increase over another, and preferably higher, speed range. As shown, a driving sleeve 19, carrying an arm 12 and freely journalled on a magneto rotor shaft 10 carrying an arm 13, drives the shaft 10 through centrifugal links 23, 16 pivoted on the arms 12, 13 respectively, and each having a pin and slot connection 27, 28 and 39, 41 respectively with a freely journalled intermediate member 14. Centrifugal force acting on the weighted end 24 of the link 23 moves the pin 27 inward against a pair of springs 29 and increases the angle between the arm 12 and the member i4; whilst centrifugal force acting on the link 16 moves the pin 39 outward against a pair of springs 43 to decrease the angle between the member 14 and the arm 13. The characteristics of the centrifugal linkages are so chosen that the link 23 operates over one speed range and the link 16 over a higher and distinct speed range, so that the magneto timing is first advanced and then retarded as the speed is progressively increased. By suitable choice of the slot contours and of the design and connection points of the springs, the timing may be made to vary with the speed in any manner. Additional springs coming into action at different speeds may be provided. Another construction described and shown comprises the subject-matter of Specification 591,529, which is referred to.
Patent GB-542588-A (GB)
Title: A brick for use in building barricades for protecting buildings, and method of forming same
IPC: E04C1/40
Filed: 1940-07-19
Abstract: 542,588. Moulding bricks; walls. NOTT, J. A. W. July 19, 1940, No. 11904. Drawings to Specification. [Class 87 (ii)] [Also in Group X] A brick of cellular texture is made by loosely packing together in a mould, bars, strips, rods, threads or laminations of plastic clay, applying thereto as by spraying a clay slip of cream-like consistency, and drying and firing the mass. The slip serves to unite the strips &c. The strips &c. may be made by extrusion, shaving or otherwise. A wall is made by stacking the bricks in tiers, the bricks of each tier being bonded in any usual manner, and then uniting adjacent tiers by nails or rods, or by a cement facing which holds the bricks together by reason of the keying provided by the interstices in the bricks. U.S.A. Specifications 1,843,184 and 1,956,607 are referred to.
Patent GB-725866-A (GB)
Title: Improvements in scratchers or abrading devices for well bores
IPC: E21B37/02
Filed: 1953-04-30
Abstract: 725,866. Well scratchers. HALL, J. E. April 30, 1953, No. 12012/53. Class 85. A well bore scratcher consists of a collar 10 which is adapted to be positioned on a pipe or casing so that it slides between stops welded thereon when the pipe or casing is reciprocated in the well and from which extend flexible abrading wires 12a and 12b arranged in an upper and lower row. At the points where the wires project from the collar they are formed into coiled springs 12c, each wire being secured to the collar internally by means of three tabs 11 which are pressed on to a mid-section 12d of the wire extending between corresponding springs 12c located in each row. Adjacent the projection point of each wire a flat-topped protuberance 13 of height sufficient to project slightly above each spring 12c is formed on the collar. When the pipe or casing is reciprocated in the well the wire ends scrape the sides of the bore, the collar passing up and down through the rows of wires which ride freely over the protuberances 13 without becoming entangled with each other or with the adjacent springs 12c.
Patent GB-528058-A (GB)
Title: Improvements in and relating to lubricating systems, more particularly for internal combustion engines
IPC: G01F23/04
Filed: 1939-04-21
Abstract: 528,058. Indicating liquid levels. GROVES, W. W. (Fleming Manufacturing Co.). April 21, 1939, No. 12031. [Class 123 (i)] [Also in Group XXXIV] A dipstick for determining the level and condition of clarity of the oil in lubricating system of internal combustion engines, comprises an element 47 having smooth surface areas of contrasting light reflecting properties which exhibit a contrast of so limited a character that, while these areas are distinguishable when covered by a film of clear oil they become indistinguishable when covered by a film of oil of such reduced clarity as to indicate an undesired state of contamination but still sufficiently clear readily to reveal normal engraved or incised dipstick markings. The element 47 may be formed on a rod 32 or it may be a decalcomania secured to the rod. The light contrasting areas may comprise wording such as the word "clean" and the device may have instructions thereon such as is indicated at 51. The usual dipstick marking 48 may also be added. The rod may have a turned up edge 43 so that it is in the form of a shallow tray to retain a little lubricant thereon when a test of the latter is required.
Patent GB-717981-A (GB)
Title: Improvements in or relating to electric circuit arrangements for affording a stable voltage or current
Inventor: MILNES ARTHUR GEORGE
IPC: G05F3/06
Filed: 1952-05-12
Abstract: 717,981. Automatic voltage control systems. NATIONAL . RESEARCH DEVELOPMENT. May 19, 1953 [May 12, 1952], No. 12035/52. 'Class 38(4) An automatic A.C. voltage stabilizing circuit of the type consisting of a resistance and a saturable reactance in series across the A.C. supply, the output voltage appearing across the reactance, is additionally compensated for 'changes in supply voltage and/or frequency. The resistor R1 and saturable reactor L1 are across the supply 11, 12 and the load R is connected across reactor L1 in series with a relatively large inductance L2 so that the load voltage is substantially independent of the supply frequency. To compensate for variations of supply voltage. a transformer T1 injects into the load by way of a resistance R2 a current which subtracts from the load current from the reactor L1 and is of such value as to compensate the said error. In a modification, Fig. 4 (not shown), the input is derived from a transformer with a tapped secondary, part of which replaces the transformer T1. In a further modification, Fig. 5, the sense of the load voltage derived from the saturable reactor T6 is reversed by a secondary winding T7 and the compensating current is derived directly from the supply via resistor R2. In a further modification, Fig. 6 (not shown), a second transformer supplies the compensating current so that the load may be isolated from the supply. In all cases any residual frequency error may be compensated by shunting the inductance L2 with a resistance R3 (shown in broken lines in Fig. 3 only). The arrangements disclosed may be used to provide a refer- 'ence voltage for a magnetic amplifier, Fig. 7 (not shown), controlling a carbon pile in series with a D.C. supply in accordance with the D.C. output voltage.
Patent GB-666597-A (GB)
Title: Improvements in or relating to machines for delivering coins
Inventor: DEBENHAM COLIN HENRY
IPC: G07D1/00
Filed: 1949-05-05
Abstract: 666,597. Money-delivering apparatus. BELL PUNCH CO., Ltd. May 5, 1949, No. 12085/49. Class 27. Fig. 1 shows a portion of a key-operated coin-delivering machine in which means are provided for locking the coin ejector associated with a coin magazine which needs replenishment. An ejector slide 27 extending into a slot 28 in a coin magazine 13 is adapted to be reciprocated to eject one or more coins from the magazine by a pivoted ejector arm 26, and is guided by springs 29, 30. A trigger arm 31 pivoted at 34 to the magazine is biased by a spring (not shown) to swing, when there are less than a predetermined number of coins in the magazine, to the position shown in broken lines. When the arm 31 thus moves it releases a bolt 35, which engages a slot 37 in the slide 27 to lock it. In an alternative construction the arm 31 is integral with a latch which moves pivotally into a slot in the ejector slide when the arm 31 swings to the broken line position. The mechanism for operating the ejector arms 26 is described in Specification 666,598.
Patent GB-371165-A (GB)
Title: Method of electric welding
IPC: B23K9/067
Filed: 1931-04-23
Abstract: 371,165. Electric welding. BORNAND, E., 112, Route Florissant, and SCHLAEPFER, H. A., 13, Rue Verdaine, both in Geneva, Switzerland. April 23, 1931, No. 12094. Convention date, May 6, 1930. [Class 39 (iii).] The parts 1, 2 to be welded are arranged at A some distance apart and connected to a source of current. The gap 4 is ionized by an X-ray device 5 to allow current to pass and the parts are finally pressed together.
Patent GB-577027-A (GB)
Title: Improvements in or relating to percussive tools
IPC: B25D11/12
Filed: 1944-06-26
Abstract: 577,027. Percussive tools. DEAN, W. H. June 26, 1944, No. 12103. [Class 124] [Also in Group XXIV] In a percussive tool actuated by a resilient medium such as pneumatic power or a spring, between a reciprocating hammer and a rivet set or the like carried by a working head, there is interposed means which control the operation of the tool independently of the source of power and operate automatically on the tool being applied to and removed from the work. In the form shown, a cylindrical block 18 is pressed laterally of a hollow working head 17 by a spring 20 and is formed with a central socket 25 tapered to correspond with the rear end 13 of a rivet set 14 and with a central aperture 26 slightly larger than the hammer head 12 of a reciprocating piston 10. When the rivet set is not pressed against the work, it is projected forwards by a spring 28 until its tapered rear end 13 is clear of the socket 25, and on the rear stroke of the piston 10 the hammer head 12 is clear of the aperture 26. The block 18 then moves into an eccentric position and absorbs the blows of the hammer. When the rivet set is pressed against the work, its tapered rear end 13 enters the socket 25 and presses the block 18 into a concentric position in which the hammer head strikes the rivet set. The tool is provided with a cylindrical or pistoltype of handle 51. The piston 10 is drawn rearwardly by a flexible cable 43 inside a non- reciprocating flexible sheath 44 protected by a flexible tube 54, and is given a quick-return forward stroke by a powerful spring 52. The ends of the tube 54 are fitted with guard springs 55 and it is filled with oil or light grease. Specifications 424,914 and 535,353 are referred to.
Patent GB-705853-A (GB)
Title: Improvements in auxiliary air admission devices for internal combustion engines
IPC: F02M23/08
Filed: 1951-05-23
Abstract: 705,853. Auxiliary air admission devices. MICHIELS. E. May 23, 1951 [May 24, 1950], No. 12103/51. Class 7(2) An extra air admission device comprises a casing 1 which can be screwed by threads 2 into the induction pipe at a position downstream of a throttle valve therein. When the throttle valve is open, an air-admission valve 6 is held away from its seat 12 by a spring 8, and as the valve is closed and the suction in the induction pipe rises the valve is drawn down on to its seat. Adjustment of the effect of the spring is made by turning a cap 9 which may be screwed on or into the casing 1. The air passes to the induction pipe through orifices 11 in the cap and through an orifice 14 and bore 13 on the valve when the valve is off its seat. A cap locking device, consisting of a spring steel rod 15 engaged in one of several grooves 9a cut. in the thread of the cap 9, is provided.
Patent GB-1301685-A (GB)
IPC: G06M1/30
Filed: 1970-03-13
Abstract: 1301685 Counters CROUZET 13 March 1970 [14 March 1969] 12105/70 Heading G4D Resetting mechanism in an electromechanical counter disengages an anchor operating directly on the lowest numeral wheel and operates heart cam mechanism. The casing is of standard dimensions for plugging into a rack. Energization and release of electromagnet 3 acts through armature 6 to oscillate an anchor 7 to act directly on a star-wheel fixed to the lowest numeral wheel 11. Resetting is effected by depressing lever 12 which is swung counterclockwise as its lower end depresses shaft 9, disengaging the transfer pinions from the numeral wheels and pressing them against a fixed spacer 2. The shaft 9 also displaces anchor 7 to an intermediate position at the same time as a projection 12e on the lever 12 drives the heart cams and therefore the numeral wheels to zero.
Patent GB-215949-A (GB)
Title: Improvements in hinges
IPC: E05D7/08
Filed: 1923-05-07
Abstract: 215,949. Herbert, Kershaw, & Co., Ltd., and Russell, H. R. May 7, 1923. Pivoting adjustments. - Swing mirrors and similar articles are frictionally held in an adjusted position by the engagement of a member 4 of an attachment plate 1 between the spaced integral plate members 8, 10 connected by a bent part 13. The member 4 is dome-shaped at 5 and has a pin 6 that seats in a slot 11 of the member 10, the member 5 and the part it engages being serrated to increase the friction. The part 10 is formed by bending the plate 8 upon itself, the curled part 13 tending to press the spaced plates together.
Patent GB-1434371-A (GB)
Title: Calcination of pulverous material
IPC: F27D13/00
Filed: 1973-03-14
Abstract: 1434371 Preheating and burning cement raw materials F L SMIDTH & CO AS 29 Jan 1974 [14 March 1973] 12193/73 Heading F4B Apparatus for calcining lime bearing material, e.g. cement raw material comprises a shaft 1 connected by an offtake 2 to a separator, a bottom central duct 7 supplying oxidizing gas and enclosing a burner 8, and around the duct, an annular space 5 for a fluidized bed with supply pipes 12 for preheated material and a ring of inert fluidizing gas supply pipes 10. In a modification (Fig. 3) four burners 8 are used and in another modification (Figs. 4 and 5) the duct 7 is initially horizontal, terminating in a vortex producing manifold (7B) which gives a helical swirling motion to the oxidizing gas. The apparatus is shown, Fig. 6, incorporated in a suspension preheater of the multiple cyclone type associated with a rotary furnace 16 and a clinker cooler 21. The suspension preheater includes cyclones 24, 26 and 28, a material supply hopper 33 with a rotary feed valve 35, an exhaust fan 30, and a dust separator 31. Hot air from the cooler enters the duct 7 and waste gases from the furnace pass to one or all of line 43 feeding the fluidizing pipes 10, line 42 opening into riser pipe 25 or line 41 passing to cooling tower 44 and then to the intake of fan 30. Preheated raw material from hopper 26 passes to a valve casing 39 sharing it between the supply pipes 12 and calcined material from the shaft 1 passes from cyclone 24 to the rotary furnace 16. Alternatively, the one-stringed cyclone preheater may be double-stringed or even four stringed as in Specification 1,319,009.
Patent GB-1060360-A (GB)
Title: Improvements in or relating to heat curable compositions
IPC: C08K5/375
Filed: 1964-11-16
Abstract: A heat-curable composition comprises (1) polyethylene, (2) an organic peroxide in an amount sufficient to promote cross-linking of said polyethylene on heating and (3) an organic cross-linking regulator which is a bis-(N,N-di-substituted thiocarbamoyl) sulphide having the general formula <FORM:1060360/C3/1> wherein n is 1 or 2; R10 and R11, when taken alone, are alkyl having 1 to 7 carbon atoms or benzyl; and R10 and R11, when taken together, form the divalent pentamethylene group.  Other compounding ingredients are carbon black and 2,6-di-tert-butyl-para-cresol.
Patent GB-941995-A (GB)
Title: Process of condensation monohydric phenols and ketones
IPC: C07C37/20
Filed: 1961-04-06
Abstract: The invention describes a process of condensing a monohydric phenol e.g. phenol, o-cresol or m-cresol and a ketone e.g. acetone, ethyl methyl ketone, diethyl ketone or cyclohexanone, in the presence of a complex compound of boron trifluoride and a saturated aliphatic carboxylic acid.  The latter may be monobasic, e.g. formic, propionic, butyric or dibasic fatty acid, e.g. oxalic or a hydroxy derivative of such fatty acids e.g. lactic acid, and the complex may have the general formula BF3(R.COOH)2 where R is hydrogen or an aliphatic saturated monovalent radical having not more than 9 carbon atoms. The phenol is preferably applied in excess of the ketone the molar ratio being 3:10 mols of the monohydric phenol for 1 mol of the ketone.  A dehydrating agent e.g. calcium chloride, magnesium chloride or silica gel is preferably present. In one example phenol and acetone are reacted together in the presence of calcium chloride and a complex of boron trifluoride and acetic acid to give 4,41dioxydiphenyl dimethyl methane. The same compound is produced according to other examples by using a formic, propionic, butyric, lactic or oxalic acid complexes. 1,1-bis-(4-hydroxy phenyl) cyclohexane is obtained by reacting phenol and cyclohexanone in the presence of calcium chloride and boron trifluoride acetic acid complex. 2,2-bis-(4-hydroxyphenyl) butane is obtained by reacting phenol and methyl-ethyl ketone in the presence of calcium chloride and boron trifluoride acetic acid complex. 4,41dihydroxy 3,31dimethyl diphenyl dimethyl methane is obtained by reacting o-cresol and acetone in the presence of calcium chloride and boron trifluoride acetic acid complex.  4,41dihydroxy- 3,31dimethyl diethyl methane is obtained by reacting o-cresol with diethyl ketone in the presence of calcium chloride and boron trifluoride acetic acid complex. 2,21-bis-(4 hydroxy-2 methylphenyl) propane is obtained by reacting m-cresol and acetone in the presence of calcium chloride and boron trifluoride acetic acid complex.