baber/WOPTO huggingface dataset:
Patent GB-789345-A (GB)
Title: Improvements in or relating to heaters
IPC: F24H1/14
Filed: 1956-01-13
Abstract: 789,345. Electric boilers. SEBAC-NOUVELLE SOC. ANON. Jan. 13, 1956 [Jan. 28, 1955], No. 1305/56. Class 39(3) [Also in Group XIII] An apparatus for radiantly heating a fluid at a high rate, for example, for heating and vaporizing water and superheating the steam generated, comprises a container 1 of elliptical cross-section having a highlyreflecting inner surface, a heating element 2 formed of a ceramic tube 4 containing a resistance wire 3 being disposed along one focal axis of the container whilst a tube 5 made of blackened copper carrying the fluid to be heated is disposed along the other focal axis so that it receives directly and by reflection along the lines 6, 7 substantially the whole of the radiant heat emitted by the heat source 2. When the apparatus is used as a steam generator. preheated water enters at the lower end of duct 5, superheated steam discharging at the top to be used, for example, in a turbine. The apparatus may also be used to heat fluids for use in gas tubines, rocket motors, &c. The source of radiation may also be heated by dielectric losses, by nuclear energy or it may consist of a gas burner or an electric arc. In a form utilizing a gas burner the apparatus comprises a series of fluid containing ducts 5<SP>1</SP> each arranged along the focal axis of a partelliptical mirror-finish wall section of a container 1<SP>1</SP>, the sections all having a common focal axis at 14 coinciding with the container axis and at which is mounted a gas burner 16. Pipes 18, 20 deliver gas from a reservoir 17 to the burner, combustion air entering through an inlet 27. The air and gas pass upwardly through a venturi-tube 26 and a metal screen 28 and burn to heat a tube 29 above the stream to a high temperature. The fluid, e.g. water, to be heated is stored in a reservoir 31 whence it flows into a ring-header 33 and then upwardly in the tubes 5<SP>1</SP> to a ring- header 34 whence a pipe 35 conveys it to a superheating chamber 36 disposed around the tube 29. The working fluid, for example, superheated steam, passes to a steam turbine through a pipe 37. Specifications 224,497 [Class 39(iii)], 484,199; 553,019, 561,110 and 715,817 [Group XXVIII] are referred to.
Patent GB-1215171-A (GB)
Title: Improved self-tapping screw
Inventor: STOKES KENNETH JOHN
IPC: F16B25/10
Filed: 1968-01-09
Abstract: 1,215,171. Self-tapping screws; making of self-tapping screws. G.K.N. SCREWS & FASTENERS Ltd. 2 Jan., 1969 [9 Jan., 1968], No. 1346/68. Headings B3A and B3N. A self-tapping screw has a point formation 13 which comprises planar piercing faces 15 and drill flutes 16, each drill flute has a leading side wall in the wall of the flute that faces the direction of rotation when the screw is rotated clockwise, and a trailing side wall, the two trailing side walls lying in spaced parallel planes on opposed sides of the point formation, the outer edge of the leading side wall is contiguous with the edge of the adjacent piercing face whereby said outer edge constitutes a shearing and piercing edge when the screw is impacted in the direction of its axis and rotated about its axis. Each shearing and piercing edge comprises two parts 19, 21 which form an intermediate point 20 which is on a larger diameter than the diameter of shank 10. The point formation 13 is manufactured by reducing one end of a cylindrical blank and then using appropriate dies in a pinch pointing operation. The screw thread is then rolled on shank 10. In a modification the reducing operation is eliminated but a rolling operation is needed on the point formation such that a thickened part is formed on each leading edge (see Fig. 6, not shown).
Patent GB-596592-A (GB)
Title: Production of benzenesulphonylguanidine and p-substituted derivatives thereof
Filed: 1945-01-16
Abstract: Benzenesulphonyl guanidines of the formula <FORM:0596592/IV/1> in which R is hydrogen, an acylamino, an alkylamino or an alkyl radical or halogen are produced by heating at fusion temperature in the range of 160-260 DEG  C. a mixture of p-R-benzenesulphonamide, a guanidine salt of a strong inorganic acid and an inorganic alkaline agent stronger as a base at said fusion temperature than is guanidine, until the guanidine liberated from its salt has fused, which the p-R-benzenesulphonamide to form the corresponding p - R - benzenesulphonyl guanidine which is recovered from the reaction mixture.  Alternatively, the guanidine salt of a strong inorganic acid may be fused with a salt of p-R-benzenesulphonamide, e.g. the sodium or potassium salt or a mixture of a p-R-benzenesulphonamide, a guanidine salt of a strong inorganic acid and an inorganic alkaline agent, the metal radical of which reacts at fusion temperature with the acid radical of the guanidine salt forming a water-insoluble salt may be fused together.  Further, the guanidine salt of a strong inorganic acid may be heated with a salt of p-R-benzenesulphonamide, the metal radical of which reacts at fusion temperature with the acid radical of the guanidine salt forming a water-insoluble salt. Examples of inorganic alkaline agents which are stronger as bases at fusion temperature than guanidine are sodium and potassium hydroxides, the oxides, carbonates or bicarbonates of sodium and potassium, trisodium phosphate or sodium sulphide.  As a guanidine salt there may be used the hydrochloride, nitrate, thiocyanate or sulphate.  In the method in which the metal radical of the inorganic alkaline agent combines with the acid radical of the guanidine salt, the oxides or hydroxides of calcium or barium may be used.  In examples, guanidine hydrochloride is reacted in the presence of sodium hydroxide with (1) benzene-, (2) p-acetylamino-, (3) p-chlorobenzene-, (4) p-toluene- and (5) p-ethylaminobenzenesulphonamide.  Reference has been directed by the Comptroller to Specification 568,850.
Patent GB-1006653-A (GB)
Title: Improvements in or relating to constant-speed drives
Inventor: MOSS NORMAN
IPC: G05D13/00
Filed: 1961-01-12
Abstract: 1,006,653. Variable speed control. PLESSEY CO. Ltd. Jan. 10, 1962 [Jan. 12, 1961], No. 1368/61. Heading F2D. Constant speed of an electric alternator 1 driven through a variable ratio planet gear 4 by a variable input 2 is obtained by speed responsive control of an auxiliary motor 8 which controls the ratio of the variable gear 4, the input shaft 5 of which is maintained above a predetermined speed by a second auxiliary motor 10 when the variable input 2 falls below the predetermined speed. Variations in output speed are sensed by a governor 9 which controls an electric, liquid or, as shown, air motor 8 which drives or is driven by a reaction planet carrier 7 to provide constant output speed as the input speed varies. As shown the input shaft 5 is normally driven from the variable input 2 through a one-way clutch 6 which overruns when the speed of the variable input 2 falls below the predetermined speed and the input 5 is driven from the second air motor 10 through a fixed ratio reduction gear 12 and one-way clutch 13. The speed of the air motor 10 is maintained constant by a governor 14 when the motor 10 drives the shaft 5. When the variable input 2 drives the shaft 5 at a speed exceeding the predetermined speed a governor 15 stops the air motor 10. In Fig. 2 (not shown) the input shaft of the planet gear 4 is driven from the output member of a second variable ratio planet gear the other two elements of which are connected through a one-way clutch and directly to the variable input 2 and air motor 10 respectively. A governor responsive to the output speed of the second variable gear controls the air motor 10 to maintain the output speed of the second gear and thus the input speed of the gear 4 above the predetermined speed when the speed of the variable input drops below said predetermined speed. Oneway brakes prevent reverse rotation of the shaft 2 and air motor output shaft. Specification 952,982 is referred to.
Patent GB-112949-A (GB)
Title: Electric Igniter for Combustion Motors.
Inventor: JAEGGI KARL
IPC: H01T13/46
Filed: 1918-01-24
Abstract: 112,949. Jeggi, K. Jan. 24, 1917, [Convention date]. Sparking-plugs.-The insulator is formed with a conical portion against which a ring 6 of soft metal such as aluminium is forced by a screwed ring 7, The ring enters completely within the body 1, the outer portion of which is chamfered and turned over so that a portion is forced into the diametral slot 8 in the ring 7. The insulator may be double-conical, two softmetal rings being employed.
Patent GB-571434-A (GB)
Title: A portable track or runway for vehicles
IPC: B60C27/18
Filed: 1942-02-03
Abstract: 571,434. Temporary roads. DAY, F. W. Feb. 3, 1942, No. 1427. [Class 107] Temporary roads for military transport, emergency Landing grounds and runways for aircraft &c. comprise a diamond mesh fabric formed of lengths of stout gauze wire of sinuous form, the bends 3 of each length of wire being linked together with the bends 3 of adjacent wires, and a number of stiff metal slats 2 each passed through a single length of wire so that alternate limbs 4 of the wire lie on opposite sides of the slats without bending the wire out of its normal formation ; the slats are secured by staples 5 which are passed over the wires and through holes in the slats, the limbs of the staples being then bent flat against the slats. Adjacent panels may be connected together by the slats or, as in Fig. 3, panels may be held in spaced relation by long slats 7. Slats may be passed through each wire, or through alternate wires only.
Patent GB-564484-A (GB)
Title: Improvements in or relating to erecting devices for gyro-verticals
IPC: G01C19/44
Filed: 1943-01-28
Abstract: 564,484. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. Jan. 28, 1943, No. 1471. Convention date, Jan. 29, 1942. [Class 97 (iii)] An erecting device for a gyro-vertical comprises an element rotatably mounted about a normally vertical axis on the rotor case to control erecting torques according to the angular position of the element, and means operative when the spin axis of the rotor is in its normally erected position for continuously rotating the element slowly about its axis and means operative when tilt occurs for bringing the element to rest in a position in which the torque applied erects the rotor. In Fig. 2 is shown the erector case 19 through which passes air from the superposed rotor case (not shown), the air issuing from four ports 15 to apply the erecting torques. The passage of the air to the ports is controlled by a rotatable valve element formed of two parts 30, 31 united by a key 32 and slot 33. The upper part 30 is formed with inclined vanes 40, and the lower part 31 is provided with an arcuate channel 39 of such a length that it can communicate either with one air port 15 or with two adjacent ports. The slot 33 has a curved base on which a ball 41 has limited movement imposed by a stop 43. During operation, when the gyro rotor is in a normal erect position, the air passing through the vanes 40 slowly rotates the valve element and is directed by the arcuate channel 39 to the successive ports 15, the duration of the resulting torques being insufficient to displace the gyro from its erect position. If departure from the erect position occurs, the ball 41 moves by gravity to the position shown in Fig. 2 by broken lines and stops the rotation of the valve element, the arcuate channel 39 then directing air to the port or ports 15 requisite to provide the necessary erecting torque.
Patent GB-846442-A (GB)
Title: Improvements relating to the production of phthalic acids from xylenes
Inventor: MAYURNIK GEORGE
IPC: C07C51/265
Filed: 1957-01-15
Abstract: Phthalic acids are prepared by reacting a xylene with oxygen and/or an oxygen containing gas to form an oxidation reaction mixture comprising unreacted xylene and toluic acid, intermixed with partial oxidation products of the xylene and toluic acid and subjecting the whole of this reaction mixture without intermediate separation to oxidation with nitric acid to form a phthalic acid.  Both steps are preferably carried out in the liquid phase, the first using air at 155-75 DEG C. in the presence of an oxidation catalyst, e.g. cobalt naphthenate and the second using 12-35% wt. nitric acid at 175-210 DEG C.  The examples describe the preparation of isophthalic and terephthalic acids.
Patent GB-247926-A (GB)
Title: Method of and means for capping bottles
IPC: B65D41/14
Filed: 1926-01-20
Abstract: 247,926. M³ller, P., and Rahlwes, K. Feb. 18, 1925, [Convention date]. Capsules, applying.-A bottle capsule, consisting of single strips of metal foil arranged with their central portions across the bottle mouth and their free ends laid singly or several in succession around the bottle neck, is applied by a chuck having a separate roller for each strip end. The strips, which may be assembled in the chuck instead of on the bottle mouth, are pressed on a foundation of thin leaves of gelatine &c. to cause them to adhere to the neck.
Patent GB-523922-A (GB)
Title: Improvements in photographic diazotype printing processes
IPC: G03C1/58
Filed: 1939-01-17
Abstract: 523,922. Photographic diazotype processes. KALLE & CO. AKT.-GES. Jan. 17, 1939, No. 1637. Convention date, Jan. 26, 1938. [Class 98 (ii)] Light-sensitive material comprises a support, a light-sensitive diazo compound, especially a p-aminodiazo compound, and, as coupling component, a hydroxynaphthionidazole, preferably a 6<SP>1</SP>- or 7<SP>1</SP>-hydroxynaphth-1<SP>1</SP>:2<SP>1</SP>:4:5- imidazole. Further substituents such as alkyl groups or chlorine may be present in the ring. The hydrogen atom attached to the carbon atom of the imidazole ring may be replaced by a low molecular weight alkyl group, for example, methyl or ethyl. Examples specify the use of (1) 2-methyl-61-(or-71-) hydroxynapth-1<SP>1</SP>:2<SP>1</SP>-4:5-imidazole and the zinc chloride double salt of the diazo compound from either p-amino-N-diethylaniline, p-amino- N-ethyl: N-benzylaniline, or p-amino-N-dimethylaniline ; (2) 6<SP>1</SP>- (or 7'-)-hydroxynaphth- 1<SP>1</SP>:2<SP>1</SP>:4:5-imidazole and the zinc chloride double salt of the diazo compound from p-amino-N- diethylaniliiie ; (3) 2-methyl-(or 2-ethyl-) 6<SP>1</SP>- hydroxynaphth-1<SP>1</SP>:2<SP>1</SP>:4:5-imidazole and the sulphate of the diazo compound from p-aminodiphenylamine and (4) 2-carboxyethyl-7<SP>1</SP>- hydroxynaphth-1<SP>1</SP>:2<SP>1</SP>:4:5 - imidazole and the zinc chloride double salt of the diazo compound from either p - amino - N - diethylaniline or p-amino-N-hydroxyethyl:N-ethylaniline. The usual additions to the layers may be present.
Patent GB-1034762-A (GB)
Title: Gas-shielded arc torch
Inventor: HILL CLIFFORD WARREN
IPC: B23K9/29
Filed: 1964-01-14
Abstract: 1,034,762. Welding by fusion. UNION CARBIDE CORPORATION. Jan. 14, 1964, No. 1676/64. Addition to 927,729. Heading B3R. [Also in Division H5] In an arc working torch as described in the parent Specification, the gas permeable barrier is annular and is enclosed within inner and outer retaining sleeves by means of which it can be detachably mounted in the body of the torch. The barrier comprises rings 24, Fig. 2, of wire mesh located by spacers 25 and held by sleeves 27, 28. The lowest ring is preferably of larger mesh and is stronger than the others. The sleeves 27, 28 may be secured in the torch by clips 30, 38 or may be held in a place by a threaded bush and by locking between the gas nozzle and the body of the torch. As shown in Fig. 3, the permeable barrier is secured by the outer sleeve only, the inner sleeve closely surrounding the non-consumable electrode 16. The gas nozzle may or may not extend substantially past the barrier and the collet holding the electrode 16.
Patent GB-228332-A (GB)
Title: Improvements relating to the conversion of vibratory into rotary motion
IPC: B06B3/00
Filed: 1924-01-21
Abstract: 228,332. Down, P. B. Jan. 21, 1924. Machinery, utilizing inertia to obtain movements in.- Oscillatory movements set up in a spring mounted weight by external vibrations are converted through ratchet gearing into uni-directional rotary motion, and the ratchet-actuating member is adjustably attached to the spring between the fixed and weighted ends thereof. The position of the weight on the spring may also be adjusted to adapt the natural period of oscillation of the device to the normal frequency of the external vibrations, which may be set up in or by moving bodies such as ships, trains, motor or other vehicles, &c. The apparatus may be utilized to actuate moving advertisements or to wind up a clock or otherwise store up energy in positions exposed to vibration, or as a toy to set mechanical figures in motion. In the advertising device shown in Fig. 1, the weight 13 is adjustably attached to the free end of a flat spring 8 of wood, metal, or other suitable material, the fixed end of which is clamped between blocks 9 on a support 10 secured in required position on a base board 1. A ratchet wheel 19 is engaged by pawl members 17, 18 pivoted at 16 to a bracket 12 adjustably secured to the spring 8 between the weight 13 and the fixed end. The device serves to drive an endless chain 3 passing round sprocket wheels 2 and carrying advertising figures &c. which may be viewed through an opening or window in a cover plate. A screen 24 may be interposed between the figures &c. and the actuating parts. Sagging of the chain may be prevented by intermediate sprockets 7. In a modification, Fig. 5, the plate or bracket 12 carrying the ratchet actuating members is attached to a block 23 adjustably secured to a vertically arranged coiled spring 20 between the fixed point of support and the lower end which adjustably carries the weight 21. A number of springs of the forms referred to and of the same or different natural periods of vibration may drive separate ratchet wheels secured to the end or intermediate chain wheels in the arrangement shown in Fig. 1.
Patent GB-920250-A (GB)
Title: Improvements in or relating to electrically operated pumps
Inventor: JACKSON HAROLD ERNEST
IPC: H02K33/10
Filed: 1959-01-16
Abstract: 920,250. Reciprocating motors. TECALE. MIT Ltd. Jan. 12, 1960 [Jan. 16, 1959], No. 1771/59. Class 35. [Also in Group XXVIII] In an electric fuel pump, make-and-break contacts 55, 56 in the energizing coil circuit are held closed during at least a part of the travel of a plunger 32 by an auxiliary armature 38. The contacts are biased open by a resilient member 42 which carries one of them, the other being attached to a rigid plate 57. The member 42 is moved by a rod 39 through a lost-motion arrangement comprising two insulating washers 43, 44, spaced apart. The rod is attached to. the plunger 32 which operates a pumping diaphragm 14 and is urged downwards by a spring 35 to produce the pumping stroke. At its lowest position (as shown) the contacts close to energize a coil 7 which attracts the plunger upwards to give a suction stroke. The contacts remain closed because of the downward pull of a U-shaped auxiliary armature 38, which is secured to the member 42, until the lower washer 44 forces them open near the top of the plunger stroke. They then remain open until closed by the upper washer 43 when the plunger again reaches the bottom of its stroke. The cycle is repeated until the delivery pressure counterbalances the force of the spring 32. A capacitor 67 is connected across the contacts, and the resilient member 42 is stiffened along most of its length by flanges at its edges. The diaphragm 14, e.g. of nylon, has metal backing discs 17 on both sides, with radial slots to give flexibility. It is stated in the Provisional Specification that the auxiliary armature may be attracted by a separate coil, in series or parallel with the main coil or controlled by its own contacts, or by a permanent or permanently energized magnet, and that one or both armatures may be fixed while the coil or coils are movable. Specification 526,500 is referred to.
Patent GB-815939-A (GB)
Title: Vulcanizing compositions comprising chlorinated butyl rubber
IPC: C08K5/17
Filed: 1957-01-17
Abstract: Chlorinated butyl rubber is vulcanized by compounding with an organic nitrogen-containing compound having (1) at least one -NH2 group, (2) at least one -NH2 group and at least one -NH- group, (3) at least two -NH-groups, or (4) a compound which under vulcanizing conditions, forms the nitrogen groups in situ; or mixtures thereof, and curing in the absence of sulphur. The butyl rubber contains a major proportion of iso-olefines, e.g. isobutylene, 2-methyl butene-1, and a minor proportion of diolefines, e.g. isoprene, dimethyl butadiene, piperylene, cyclopentadiene, myrcene, 1-vinylcyclohexene-1,3, and dimethyl fulvene, chlorinated to contain at least 0.5 wt. per cent of combined chlorine but not more than one combined atom of chlorine per double bond in the copolymer.  The nitrogen-containing organic compounds may be present in an amount of from 0.1 to 20 weight per cent based on the weight of the chlorinated rubber, and examples are monofunctional primary amines, such as hexyl-, octyl-, decyl-, hexadecyl-, dodecyl-, dimethyl pentyl-, pentamethyl hexyl-, methyl octyl-, diethyl heptyl-, 9-hexadecyl-, a - or b -phenyl ethyl-amines; and naphthyl- and hydrogenated naphthylamines; phenyl-, ethyl-, t-butyl and 2,4,6-trimethyl anilines; toluidines; formaldehyde-p-toluidine reaction products; 2-amino- and 2-methylamino-4-chlorotoluene, 5-amino-1- and 5-methylamino-1-naphthols; o-m- and p-amino-, 2-amino-4-nitro, 2-amino-4-phenyl-, and 2-methylamino-4-phenyl phenols; p-methyl, p-amino and p-methylamino phenyl-acetic acids; p-methyl and p-methylaminophenylacetonitriles; p-amino and p-isopropylamino propriophenones; 4-chloro-, 4-nitro-, 4-chloro-N-methyl-, and 4-nitro-N-methyl anilines, 2-amino-, 2-amino-3-methyl-, 2-amino-4-methyl-, 2-amino-5-methyl-, 2-amino-6-methyl-, 2 - methylamino - 3 - methyl -, 2 - ethylamino - 4 - methyl -, 2 - hexylamino - 5 - methyl -, 2 - methylamino - 6 - methyl -, and 2 - methylamino - pyridines; 3-amino-, 8-amino-, 3-methylamino-, 8-heptylamino-quinolines; ethanolamine and N-methyl ethanolamine; glycine and N-methyl glycine; b -alanine and N-methyl b -alanine; 4-nitro- and N-methyl-4-nitrobenzylamine; b -aminoproprionitrile; a -aminoacetamide; m-(p-anilinophenylazo)- and p-amino-benzene sulphonic acid; b -chloroethylamine; and N-methyl anthranilic and sulphanilic acids.  Optional ingredients may be zinc, magnesium, calcium and lead oxides or basic metallo-organic lead stearate or mixtures thereof; pigments and fillers such as titanium dioxide, clays, ultramarine blue, carbon black, silica, calcium carbonate, ferric hydroxide, chrome yellow, and Prussion blue; tackifiers such as phenol or p-toluidine formaldehyde resins; accelerators and calcium silicate and the composition may be vulcanized at from 270-400 DEG  F.  The vulcanized composition may be used in tyres, electrical insulation, tyre curing bags, car window channels and tie-ply compositions, and proofed goods.