baber/WOPTO huggingface dataset:
Patent GB-731900-A (GB)
Title: Step-by-step displacement device
IPC: F16H27/02
Filed: 1953-09-24
Abstract: 731,900. Ratchet gearing. TIME, Inc. Sept. 24, 1953 [Sept. 24, 1952], No. 26357/53. Class 80 (3). Oscillating movement of a lever 14 driven from a rotary eccentric 48 is converted into a linear step-by-step movement of a member 3, such as a carriage of a film scanning apparatus, by means of a driving member 10, which is reciprocated in a direction parallel to that of the movement of member 3 through a resilient hinge section 16 by the lever 14, and an electromagnetic coupling device 18 between the member 10 and the member 3 which is energized in timed relation to the oscillation of lever 14 by a cam 50 on the shaft of eccentric 48 controlling a switch 56. The eccentric 48 acts against a spring-pressed arm 34 on the lever 14, the movement of which is limited by a projection 30 co-operating with fixed stops 26, 28. The pivot of the lever 14 is constituted by a resilient hinge section 8 of a supporting block 6. The device can be applied to the precision positioning of the carriages of automatic machine tools, to ruling diffraction gratings or to ruling precision engraved scales for measuring instruments, optical range finders and the like.
Patent GB-1409625-A (GB)
Title: Surface treatment for aluminium plates
IPC: B41N3/00
Filed: 1973-06-01
Abstract: 1409625 Anodizing aluminium FUJI PHOTO FILM CO Ltd 1 June 1973 [3 June 1972] 26366/73 Heading C7B [Also in Division G2] An aluminium or aluminium alloy plate is anodized using an aqueous solution of 5-50 wt per cent trisodium phosphate at 20-40‹C, 5-20 volts, and 0.8-3 ASD for 3-10 minutes. For use as a printing plate treatment of the plate e.g. of Al, or Al alloy with Cu, Zn, Mg, or Fe, may include prior graining of the surface, e.g. by brushing; cleaning using sodium hydroxide and ammonium bifluoride, or degreasing agent such as trisodium phosphate, trichlorostyrene or carbon tetrachloride; anodizing as above; e.g. using a lead or aluminium cathode; coating with a polymer such as polyvinyl alcohol, polyacrylamide, polyvinyl, pyrrolidone, gelatine, hydroxyethyl cellulose, carboxymethyl cellulose, casein or sodium alginate; coating with a light sensitive material e.g. cinnamic acid ester (other examples given) and exposing to form a desired pattern. The light sensitive material may include a sensitizer nitroacenaphthene or trinitrofluorenone and copper phthalocyanine as pigment,
Patent GB-602022-A (GB)
Title: A safety relief valve
IPC: F16K17/10
Filed: 1945-10-10
Abstract: 602,022. Pressure-regulating and safety cut-off valves. ST. FARE, G. DE. Oct. 10, 1945, Nos. 26403 and 26404. Convention dates, Jan. 29, and Aug. 21. [Class 135] A combined pressure regulating and safety cut-off device for insertion between a high-pressure gas reservoir and a consuming apparatus comprises a passage 108 through which the gas enters the device, the passage containing two valves 116, 117, of which the first controls the inlet to the passage and closes against the flow, and the second controls the outlet and closes with the flow, and the two valves are rigidly connected together so as to be slidable in the passage under the loading of a spring 120 which presses valve 117 towards its seat and they are also connected to an actuating diaphragm 101 whereby valve 116 acts as a pressure regulator and valve 117 as a safety cut-off valve. Diaphragm 101 is loaded by a spring 104 and is open to atmosphere on its upper side through an aperture 107a, and its connection with the valves comprises a Y- shaped lever 124 of which one arm is pivoted at 122, a second arm 125a passes through an aperture in a rod 126 depending from the diaphragm, and the third arm is in contact with valve 117. In normal operation, the pressure of the gas acting on the diaphragm keeps the valves floating between their seats so that gas can pass through the calibrated orifice 136, into passage 108, and through grooves around the member 118 interconnecting the valves and sointo the diaphragm chamber, Member 118 is provided with flats to prevent it rotating, and the housing 113 together with the valves &c. is formed as a removable unit. If the pressure in the diaphragm chamber becomes exceptionally low due to (say) a break in the flexible hose 134 leading to the burners, the diaphragm will be depressed by its loading spring and lever 124 will be withdrawn from valve 117 whereby the latter will be closed by its loading spring 120. To open valve 117 again when normal operation is to be resumed, the valve is pushed off its seat by lever 124 which is raised by pressing on a ball 132, the latter acting on rod 126 through a sealing diaphragm 129 and a spring-loaded plunger 127. In a modification, valve 117 is formed as a plane lift valve with a projecting stem which contacts an abutment on a simple lever substituted for lever 124. The manual resetting device for valve 117 comprises a spring-pressed push-pull knob which engages a projection from the upper face of the diaphragm, the knob having a bayonet slot connection with the casing so that it can be locked when pushed in.
Patent GB-687337-A (GB)
Title: Amino-propane diol compounds
Filed: 1950-02-15
Abstract: The invention comprises 1-biphenylyl-2-aminopropane-1 : 3-diols of the general formula <FORM:0687337/IV (b)/1> (wherein n is 1 or 2 and R represents hydrogen, halogen, a nitro group or an alkyl or alkoxy group of not more than 4 carbon atoms) and their salts, and the preparation thereof by hydrolysing a mono-, di- or triacyl derivative thereof, of the general formula <FORM:0687337/IV (b)/2> (wherein R1 and R2 are the same or different and represent hydrogen or acyl radicals, but R1 is always hydrogen when R2 is hydrogen and R2 always acyl when R1 is acyl) with an acidic or alkaline hydrolytic agent until the removal of the acyl group or groups is complete.  The hydrolysis is preferably effected with a dilute mineral acid (e.g. hydrochloric, hydrobromic, hydriodic, phosphoric or sulphuric acid), yielding the corresponding salt of the aminodiol, which may be isolated as such or neutralized to liberate the aminodiol. The products may be resolved into their optically active isomers via a salt with an optically active acid.  Examples describe the hydrolysis of: (1) dl-q -1-(41-biphenylyl) - 2 - acetamidopropane - 1 : 3-diol; (2) dl-q -1-(31-biphenylyl)-2-benzamidopropane-1 : 3-diol; (3) dl-q -1-(31-biphenyl)-2-benzamido-3-acetoxypropane-1-ol; (4) dl-q -1 - (411 - methoxy - 41 - biphenylyl) - 2 - phenylacetamidopropane-1 : 3-diol; (5) dl-q -1-(411-nitro - 41 - biphenylyl) - 2 - acetamidopropane-1 : 3-diol.  The dl-q -1-(41-biphenylyl)-2-aminopropane-1 : 3-diol obtained in (1) is resolved by fractional crystallization of its d-tartrate from methanol or its d-camphorsulphonate from n-butanol or isopropanol. Acylated 1 - biphenylyl - 2 - aminopropane-1 : 3-diols of the second general formula above are obtainable by preparing ketones of the general formula <FORM:0687337/IV (b)/3> according to Specification 687,336, reducing them according to Specification 687,284 and, if desired, monoacylating the products (also according to Specification 687,284) or diacylating them in one or two stages.  The preparation of dl-q -1-(41-biphenylyl)-2-acetamidopropane-1 : 3-diol from 4-biphenylyl bromomethyl ketone via its hexamethylenetetramine complex, 4-biphenylyl aminomethyl ketone hydrochloride, 4-biphenylyl acetamidomethyl ketone and 4 - biphenyl - a  - acetamido - b  - hydroxyethyl ketone is described in detail.
Patent GB-1098552-A (GB)
Title: Improvements in and relating to fixed-bed gasification of solid fuels
Inventor: HOY HERBERT RAYMOND
IPC: C10J3/08
Filed: 1963-07-04
Abstract: 1,098,552. Slag tap gasifiers. C.U.R.A. PATENTS Ltd. Oct. 5, 1964 [July 4, 1963], No. 26646/63. Heading F4B. In a slag tap gasifier having a number of tuyeres 7, which may be retractable, the arrangement of the tuyeres is such that the zone of intense reaction is inclined, so that an inclined slag path is formed at the bottom of the reaction zone leading to the slag outlet 4. The gasifier may have a central tuyere assembly, and the arrangement may be such that a stepped series of inclined slag paths lead to a number of outlets spaced round the furnace floor.
Patent GB-331748-A (GB)
Title: Photographic copying apparatus
IPC: G03B27/00
Filed: 1929-09-02
Abstract: 331,748. Neithold, C. Sept. 2, 1929. Enlarging.-A fixed-focus enlarging apparatus, adaptable for contact printing, comprises a rigid tubular casing 7, having a frame 8 for the sensitive material mounted at the upper end, and a lens holder 6 and negative carrier 4 spaced at invariable. distances above a source of light I at the bottom of the casing behind a diffusing screen 17. The negative 10 is held in an open frame resting on a calibrated glass plate 11 against which it is pressed by a second glass plate 12. A ground glass plate 27 is provided at the upper end to enable the time required for printing to be determined before the sensitive material is inserted. To adapt the apparatus for contact printing, the lens holder and negative carrier are pivoted so as to be swung out of the way, or the source of light may be removed from the bottom of the casing and placed on ledges above the lens holder. Additional lamps with reflectors may be mounted at the sides of the casing.
Patent GB-354583-A (GB)
Title: Improvements in or relating to staves for use in surveying
IPC: G01C15/06
Filed: 1930-09-06
Abstract: 354,583. Levelling staves. GAYER, A. E., 9, Heath Hurst Road, Hampstead, London. Sept. 6, 1930, No. 26665. [Class 97 (ii).] A surveyor's stave applicable for short range and for long range and stadia work has numerals B indicating tenths of a foot and sets of hundredth divisions C, D in staggered arrangement as shown. The feet numerals A are repeated three times within the range of one foot. The tenth numerals are each a tenth of a foot in height. The hundredth divisions are for the most part represented by alternate white spaces D and black bars C but the white spaces representing the fifth and sixth hundredth divisions are separated by a fine line F joining the bottom and top edges of two short bars E.
Patent GB-691583-A (GB)
Title: Improvements in or relating to methods of making supply cathodes and supply cathodes manufactured by means of these methods
IPC: H01J9/04
Filed: 1951-11-15
Abstract: A molybdenum casing forming part of an electron discharge tube cathode is pickled in a bath of three parts 70 per cent sulphuric acid, one part concentrated nitric and one part water, followed by rinsing, drying, and annealing in hyrodgen at 1100 DEG C.
Patent GB-151280-A (GB)
Title: Device for attaching photographic apparatus or the like to stands
IPC: F16M11/14
Filed: 1920-09-20
Abstract: 151,280. Weidner, J. Sept. 18, 1919, [Convention date]. Levelling-heads. - A stand head for photographic apparatus, surveying-instruments, &c. comprises a segment of a sphere of relatively large radius upon which rests a member, with a correspondingly curved surface to which is attached the instrument. The two-part spherical members 8, 3 are held in loose engagement by means of the member 9 attached to the plug 10. The plug 10 is movable axially in the member 3 and is attached to the stand by means of the screw 2. The member 8 which carries the instrument may be fixed in any desired position by tightening-up the screw 2.
Patent GB-1482404-A (GB)
Title: Playing piece for a tabletop hockey game
IPC: A63F7/24
Filed: 1976-06-28
Abstract: 1482404 Hockey player J AYER 28 June 1976 [30 June 1975] 26844/76 Heading A6H A table hockey game player comprises a hockey stick 6 pivotable against a spring 9 or rubber band towards the foot 12 of the player so that it will hit a ball or puck on release. The player is moulded or blanked. The pivot is formed by a wire loop 4 passing through the stick. The tension spring 9 at the top of the stick may be replaced by a compression spring at the bottom. The stick could be held in its operative position by a hinged catch.
Patent GB-964321-A (GB)
Title: Improvements in the preparation of polyethylene sheeting
IPC: B29C55/18
Filed: 1960-08-04
Abstract: 964,321. Producing polyethylene film. KODAK Ltd. Aug. 4, 1960 [Aug. 5, 1959], No. 27061/60. Heading B5B. A polyethylene film is produced by heating a polyethylene having a density of 0.930 to 0.970 gram/c.c. to obtain a clear melt, forming the molten polyethylene into a sheet or film having a thickness from 2 to 10 times the desired thickness of the final film, then, without stretching the sheet, passing it between pressure rollers having a temperature between 180‹ F. and the "fatigue temperature" of the polyethylene, and under sufficient pressure to reduce the thickness of the sheet to the desired value, and then heat-setting the film by heating it under sufficient tension to prevent it from shrinking, but without stretching it, at a temperature in the range between 10‹ C. less than the " creep temperature " and the fatigue temperature. The " fatigue temperature " is defined as the temperature at which the tensile strength of the polyethylene is between 14 and 20 lbs. per square inch. The " creep temperature " is defined as the temperature at which the length of a test specimen has increased or decreased 2% of its original length when the test specimen is supporting a linear load of 10 grams per square millimetre and the temperature is being increased at the rate of 10‹ C. per minute. The pressure exerted by the pressure rollers on the polyethylene sheet or film may be at least 1500 lbs. per linear inch. The polyethylene sheet or film may be formed by melt extrusion, followed by quenching it by passage through cold water or on to a chilled roll to cool it to a temperature of at least 100 ‹ F. below its " frost line temperature " within not more than 60 seconds from the time it leaves the extruder. The rate of cooling must be rapid enough to limit the formation of spherulites. The " frost line temperature " is defined as the temperature at which a film being melt cast from a polyolefine becomes suddenly hazy or shows a significant loss in transparency on cooling.
Patent GB-734404-A (GB)
Title: Improvements in and relating to elevator-conveyors
IPC: B65G65/00
Filed: 1950-11-07
Abstract: 734,404. Vehicle castor wheels. REFFOLD, G. Feb. 6, 1952 [Nov. 7, 1950], No. 27132/50. Class 108 (2). [Also in Group XXX] A retractable castor 10 normally supporting one end of the framework 5 of a portable conveyer (see Group XXX) is rotatably mounted on an axle 55 carried by forks 56 depending from a plate 57. This plate is provided with an integral axle 58 passing through a plate 59 supporting a channel member 60 which is mounted by pivots 63, 64 on plates 65, 66 secured to the framework 5. By turning a handle 11 through 180 degrees a cam 68, slidably mounted in an aperture 69 of a plate 70 secured to the channel member 60, causes the plate 70 to rotate about the pivot 63 whereby the castor is retracted.
Patent GB-1097176-A (GB)
Title: Acoustic diaphragm
Inventor: NOREN MAURITZ FRANK
IPC: H04R7/14
Filed: 1965-06-28
Abstract: 1,097,176. Diaphragms. HAWLEY PRODUCTS CO. June 28, 1965, No. 27205/65. Heading H4J. A shallow, elliptic, loud-speaker diaphragm comprises a portion, adjacent its suspension corrugations 2, which is convex " upwardly " and a portion 28, adjacent its voice coil former 4 which is concave upwardly. The convex portion is provided with a plurality of coaxial ribs 22-27 whilst the concave portion has at least one such rib 21. The diaphragm is made by accreting cellulose fibres from an aqueous slurry on to a porous former.
Patent GB-390074-A (GB)
Title: Games-practising apparatus
IPC: A63B69/00
Filed: 1932-10-01
Abstract: 390,074. Practising-appliances for ball games. TWIST, H. G., 3, The Quadrant, Coventry. Oct. 1, 1932, No. 27299. [Class 132 (ii).] For practising ball or like games, a ball or other suitable projectile 2 is secured by a ring or loop 4 to an elastic cord 3 swivelled upon or otherwise connected to the end of a rod 6. In operation the grip 7 is held in one hand and the ball 2 played by a racket held in the other hand. The apparatus may be adapted for practising lawn or table tennis, badminton, rackets, fives, and Association football.
Patent GB-1156645-A (GB)
Title: Adhesive-Printing Ink Vehicle Compositions and Laminates prepared therewith
IPC: C09J133/06
Filed: 1967-06-14
Abstract: 1,156,645. Ornamenting. E. I. DU PONT DE NEMOURS & CO. 14 June, 1967 [15 June, 1966], No. 27377/67. Heading B6G. [Also in Divisions B5 and C3] Decorative articles are obtained by printing and laminating surface-receptive polyvinyl fluoride film with an adhesive/printing ink vehicle composition comprising an organic solvent solution of (1) a vinyl polymer having attached to the main chain thereof monovalent radicals of the formula wherein Z is a tetravalent aliphatic hydrocarbon radical of 2 or 3 carbon atoms, R is H or C 1 -C 8  alkyl, R 1  is H, OH or C 1 -C 8  alkyl and R 11  is H or C 1 -C 8  non-tertiary alkyl or C 1 -C 8  #- hydroxyalkyl, the amino nitrogen content of said vinyl polymer being at least 0À01%, based on the weight of the vinyl polymer, and (2) an epoxy ether or epoxy thioether reaction product characterized in that the precursor epoxy ether (or thioether) is partially reacted with an ethylenically unsaturated compound of the formula wherein R 3  is H or carboxyl or C 1 -C 4  alkyl, R 4  is an alkyleneoxy, alkyleneoxy carbonyl, divalent aromatic, other divalent aliphatic or divalent alicyclic radical, or when A is R 4  may be a single bond, A is -O-, -TH-, and R 7  is H or a carboxy, carboalkoxy, hydroxy, sulphhydryl, sulphonyl, amino, non-hindering alkyl or non-hindering alkyl-aryl group, said reaction product having unhindered ethylenic unsaturation, an epoxide equivalent of from 50 to 3000, and a bromine number of from 0À1 to 100; said components (1) and (2) being present in a ratio, by weight, of from 1 : 99 to 99 : 1. Preferred vinyl polymers contain 80-97% by weight of units of (meth)-acrylate esters of C 1 - C 8  aliphatic alcohols, and have the amino-ester groups present in amino-ethyl, amino-propyl or amino-hydroxypropyl methacrylate units, the amino group generally being introduced by modification of a suitable preformed polymer (e.g. by imination of a polymer containing carboxylic acid groups). The epoxy-(thio)- ether reaction product is generally derived from an epoxy compound containing on average more than one epoxy group per molecule; the preferred precursor epoxy-compounds being diphenylol-propane diglycidyl ether resins (and corresponding thio - derivatives). The other component of the epoxy reaction product is preferably an olefinically unsaturated carboxylic acid. The polyvinyl fluoride film is rendered surface receptive by chemical, electrical or flame-treatment methods. It is then printed with the aforesaid solution and laminated to a substrate composed of a thermosetting resin, optionally reinforced with, e.g. glass fibres. The laminating/printing solution may contain a pigment, e.g. a brown pigment or titanium dioxide. In the examples, the polyvinyl fluoride film is printed with the solution in a pattern by stamping a series of " X's " into a template, spraying the solution over the X's and drying; after laminating with a polyester/ styrene/glass fibre mat there are obtained exterior trim panels suitable for use in station wagons.
Patent GB-1244439-A (GB)
Title: Improvements in or relating to the production of electrical sheets from an iron-silicon steel alloy
IPC: B22D11/12
Filed: 1969-05-30
Abstract: 1,244,439. Heat-treating silicon steel. AUGUST THYSSEN-HUETTE A.G. May 30, 1969 [June 18, 1968], No.27389/69. Heading C7A. Silicon steel sheet having an easy magnetic direction in the direction of rolling is produced by heating a continuously cast block in a tunnel furnace to 1250‹-1300‹ C., hot rolling, cold rolling and subjecting it to a final anneal, there being additionally included prior to hot rolling a heating at 1350‹-1400‹ C., the heating being effected by internal passage of electric current i.e. by induction or direct resistance heating. The electric heating step may precede or follow heating in the tunnel furnace.
Patent GB-1092774-A (GB)
Title: Improvements in "cyclic siloxanes"
IPC: C08G77/06
Filed: 1965-06-29
Abstract: Novel compounds of the formula <FORM:1092774/C3/1> wherein each R individually may represent alkyl, cycloalkyl, aryl, aroxyaryl, aralkyl, alkenyl and halogen or cyano substituted hydrocarbon, are prepared by reaction in solution at 0-80 DEG  C., in the presence of an acid acceptor, of a trisiloxane of formula <FORM:1092774/C3/2> wherein R is as defined above and Y is Cl or OH, and a tetraorgano disiloxane of formula <FORM:1092774/C3/3> wherein R and Y1 are as defined above, but Y and Y1 must be dissimilar.  Suitably, R is methyl and/or phenyl.  Polysiloxanes may be prepared from the cyclosiloxanes of the first formula given above by reaction with an organopolysiloxane rearrangement and condensation catalyst (e.g. KOH) at 60-140 DEG  C. A novel such polysiloxane has the recurring unit <FORM:1092774/C3/4> and is claimed per se.  A silicone rubber may be made from this novel polymer by curing it with, e.g. benzoyl peroxide, in admixture with a filler, e.g. silica.  The rubber product may be used as an electrical insulator, and for making gaskets and washers.
Patent GB-864741-A (GB)
Title: Reamer manufacture
IPC: B23D77/00
Filed: 1959-08-12
Abstract: 864,741. Grinding. LARALLEE & IDE Inc. Aug. 12, 1959 [Sept. 5, 1958], No. 27555/59. Class 60. [Also in Group XXII] A method of making a reamer R comprises centreless grinding a hardened blank to the cutting diameter of the reamer, and then grinding flutes in one end of the blank leaving lands 32 of the cutting diameter between the flutes. Before flame &c hardening of the blank, centre holes 10 are drilled in its ends. The blank is held in a collet 26 while the flutes are ground and the lands sharpened and relieved at 30 by grinding wheels 22, 24. The shank is further ground at 34 before conical enlargements 42 are turned or ground in the centre holes 10.
Patent GB-151650-A (GB)
Title: Improvements in separators for the elements of electric storage batteries
IPC: H01M50/463
Filed: 1920-03-08
Abstract: 151,650. Philadelphia Storage Battery Co., (Assignees of Holland, W. E., and Skinner, J. M. C.). May 17, 1919, [Convention date]. Separators.-A separator consists of a sheet of rubber or other insulating- material formed with elongated rectangular parallel slots 2 arranged in columns and at an angle other than a right-angle to the direction of the columns. The distance between the slots may be equal to the width of the slots. Unperforated strips 3 which may be formed with ribs may be left between the columns of slots. The total area of the slots is at least 40 per cent of the area of the separator as described in Specification 143,493.
Patent GB-483274-A (GB)
Title: Improvements in flexible cables
IPC: H01B7/22
Filed: 1936-10-12
Abstract: 483,274. Cables. SIEMENS BROS. & CO., Ltd., and ROBERTS, A. H. Oct. 12, 1936, No. 27585. [Class 36] [Also in Group XXV] A cable, more particularly an electric cable, comprises one or more layers of helically applied strands 3, the or each layer consisting of an even number of strands and each strand consisting of a number of wires twisted together. The wires of adjacent strands in a layer are twisted in opposite directions but with the same length of lay so that the wires of adjacent strands intermesh. As shown, the strands 3 form a layer on the insulation 2 of a conductor 1 which may be of usual construction or consist of a central core surrounded by a layer of strands formed similarly to the strands 3. The layer of strands 3 may serve as an armouring, a screen, or outer conductor and may be surrounded by a layer of insulation over which is applied a further layer of the strands. A number of insulated conductors may be individually or collectively surrounded by a layer of the strands and embedded in insulation to form a multiconductor cable.