baber/WOPTO huggingface dataset:
Patent GB-1225041-A (GB)
Title: Double-beam photometer
Inventor: RIEGLER HEINZ
IPC: G01J1/36
Filed: 1968-05-06
Abstract: 1,225,041. Photo-electric photometers. CARL ZEISS JENA VEB. May 6, 1968. No.21369/68; Heading G1A. [Also in Division H3]. In an alternating double beam photometer of the type in which the beams are intensity modulated, a waveform is generated phase-locked to the alternation and modulation and used to control an electronic switch which simultaneously separates the signals due to the two beams and synchronously rectifies them. The waveform is preferably generated by a control plate admitting light to a pair of photo-diodes and mounted on a common motor driven shaft with the modulator and a mirror for alternating the beams. Fig. 5 shows the relative phases of the modulator 2 mirror 3 and control plate 13, 15 and 17 are the photo-diodes. Illumination of a photo-diode causes a corresponding transistor 25, 26, Fig. 6, to conduct opening a corresponding gate 19, 20 or 21, 22 to open. Positive half cycles of photometer output U 1  (t) thus form the output U 2 (t) when they relate to one of the photometer beams and U 3  (t) when they relate to the other. U 2  and U 3  are smoothed and their quotient measured. Gates 19, 20; 21; 22 may be replaced by means which invert the signal instead of merely closing to effect fullwave rectification.
Patent GB-259189-A (GB)
Title: Improvements in poppet valve mechanism for fluid pressure servo-motors or power actuators
IPC: G05D13/00
Filed: 1926-08-30
Abstract: 259,189. Bragg, C. S., and Kliesrath, V. W. Oct. 2, 1925, [Convention date]. Manually-actuated multiple-way valves; leakage, preventing.-In a servomotor of the kind described in Specification 243,332, [Class 108 (iii), Springs &c.], sealing-means between the shaft and the valves are made integral with the valves, which are pressed to their seats by spring plates arranged between the backs of opposed valves. The valves 40 - - 43 are arranged in chambers 11, 12 communicating with either side of the piston and with a suction source through port 24 and the hollow spindle 20, when the valves 41, 42 are raised from their seats. Sealing is effected by conical parts 47 provided in the valves, Figs. 3 and 3<a>, which preferably are of moulded rubber, being pressed by fluid pressure against the shaft 20.
Patent GB-811282-A (GB)
Title: Improvements in or relating to index carriers for magnetic recording strips
IPC: G11B27/34
Filed: 1957-07-05
Abstract: 811,282. Magnetic tape record apparatus. STARCK, A. L. July 5, 1957 [July 6, 1956], No. 21432/57. Class 40 (2). An index carrier adapted to be fitted on the spool of a magnetic record tape comprises a plurality of radial elements each provided with a tangential reference mark defining the location of a corresponding elementary record. The first embodiment, Fig. 1, comprises a transparent disc with a central hole G for fitting over the carrier spindle for the spool and having a series of angularly equidistant radial reference lines D each with a reference mark E corresponding to a predetermined winding diameter. Titles or references for the different elementary records may be written in the spaces provided. A second embodiment, Fig. 2, shows a similar disc, but which is opaque and provided with apertures E<SP>1</SP>1 for observing the amount of tape on the spool. The discs may have projecting tongues H to retain them in position while the spools beneath rotate. In a third embodiment, Fig. 6, reference marks M are imprinted on a number of separate tongues N pivotally mounted on a common eye O adapted to fit over the carrier spindle so as to form a sort of gauge which opens to form a fan-like arrangement.
Patent GB-672270-A (GB)
Title: Improvements in or relating to electrolysis apparatus
IPC: C13B20/18
Filed: 1949-08-18
Abstract: 672,270. Electrolysis. RAFFINERIE TIRLEMONTOISE SOC. ANON. Aug. 18, 1949 [Aug. 27, 1948], No. 21475/49. Class 41. An electrolysis apparatus, suitable for example for the de-ionization and purification of sugar solutions or sugar juices, comprises a container divided by at least one partition which contains at least one ion-exchanger. As shown, an electrolytic cell is divided into chambers 3, 4, 5 by partitions 2, at least one ion-exchanger being embodied in each partition. The partitions may be of annular shape and arranged concentrically.
Patent GB-499890-A (GB)
Title: Testing hardness of materials
IPC: G01N3/42
Filed: 1937-08-04
Abstract: 499,890. Testing hardness of materials. WARMAN, R. T. Aug. 4, 1937, No. 21481. [Class 106 (ii)] Consists of a base 1 upon which are mounted gripping means 9, 11 8, 8A for the work, a unit embodying an indentor 7 and a measuring microscope 10 which is pivotally or slidably mounted so that either the indentor or the microscope may be brought to the working position, and a manually operated hydraulic device 2, 4 for applying a load to the indentor. The cylinder 2 contains pistons 6, 6A between which is a liquid such as oil or glycerine. The microscope indentor unit can pivot about the axis A, A the indentor being connected to the piston 6 by a joint which allows of this. With the indentor in position when the hand nut 4 is turned the piston 6A is advanced and through the liquid moves piston 6 and indentor. Continued movement of nut 4 after engagement of indentor applies the load which is measured by a pressure gauge 20. A battery 3 supplies a source of light located in the part 12 for illuminating the indentation by use of a lens 13 and plain glass reflector 14. The indentation is measured by swinging the microscope into position the latter being provided with a transparent diaphragm on which are located two or more fine lines, one of which is set at an angle to the others, a micrometer head 17 being provided to measure movement of the lines relative to an indentation.
Patent GB-153417-A (GB)
Title: Improvements in forms for constructing concrete walls
IPC: E04G11/10
Filed: 1919-09-03
Abstract: 153,417. Yamaguchi, K. Sept. 3, 1919. Moulding walls in situ.-In shuttering for concrete walls each board comprises an outer part 1 and an inner part or lining consisting of the detachable portions 3 with an intervening fixed part 2. At the outer corners of the parts 3 are undercut notches 4 which, when the boards are in place, form recesses to receive the dovetail ends 9 of the cross ties. The ends 9 are connected to the ties by hollow extensions 10 and long nuts 11. Thus after a length of wall is set the lower boards are readily detachable by releasing the couplings 5, 6 whereupon the parts 1, 2 of the boards come away allowing ready removal of the tie ends 9, 10 and inner boards 3. The upper and lower edges of the boards are rebated as shown in Fig. 3 and the abutting edges of the parts 2 and 3 are sloped as shown in Fig. 4. Modifications suitable to various angles, columns, &c. are described. The boards on the inside may take the form of permanent slabs.
Patent GB-281397-A (GB)
Title: Improvements in or connected with electric cables and conductors
IPC: H01B13/30
Filed: 1926-09-03
Abstract: 281,397. British Insulated Cables, Ltd., Nisbett, G. H., and Brislee, F. J. Sept. 3, 1926. Mineral oils, purifying. - Transformer oil, cylinder oil, petroleum jelly &c. is de-aerated or degasified for use in impregnating cable-insulating coverings by admitting it into a vacuum tank in the form of a fine spray, or by slow cooling in vacuo accompanied by stirring.
Patent GB-516264-A (GB)
Title: A new or improved dental bite-taking appliance
IPC: A61C9/00
Filed: 1938-07-22
Abstract: 516,264. Dental appliances. KELSO, H. July 22, 1938, No. 21746. [Class 81 (ii)] A dental bite-taking appliance comprises two pairs of plates e (one pair for each jaw) charged with impression material and pivotally supported on rods d, which are attached to U-shaped pillars b, b<1>, c, c<1>, slidably mounted in a sleeve member a so that the distance between the upper and lower plates can be adjusted to fit the patient's mouth. A gag k. is adjustably mounted on a rod f passing through the centre of the sleeve member. The rods can be locked in position by screws f. Openings e are provided in the trays e through which the impression material extrudes so that when the material sets the trays are retained in the angular position to which they have been moved. In a modification the trays are adjustable laterally for different widths of mouth.
Patent GB-826074-A (GB)
Title: Improvements in or relating to flushing cisterns
Inventor: WALL BERNARD PHILIP
IPC: E03D1/012
Filed: 1957-07-09
Abstract: 826,074. Water-waste-preventing cisterns. GENERAL ELECTRIC CO. Ltd. July 9, 1958 [July 9, 1957], No. 21765 /57. Class 26. In a flushing cistern having a lever 3 for manual operation of the syphon mechanism a protuberance 5 is rockable in a recess 6 at or in the upper edge of the wall of the tank 1. The lid 2 has a proturberance 8 so located, with the lid in position, to prevent the protuberance 5 jumping out of the recess 6. The lever may pass through a gap 9 in the wall, a slightly curved portion 10 contacting the edge of the lid 2 serving to retain the lever in the gap. A bracket secured to the upper edge may retain the lever in position with no lid. The tank 1 may be of moulded synthetic resin material, the recess having a brass liner 7.
Patent GB-217103-A (GB)
Title: A new or improved method and apparatus for preserving food
IPC: A23L3/3418
Filed: 1923-08-29
Abstract: 217,103. Bley, W. Aug. 29, 1923. Check lift valves.- The inlet valve 2 of an air pump is formed of a cylindrical body in which are two axial bores 18 and 19, terminating in radial ports 20, 21. The port 21 is closed by a movable disc 22 and the whole is enclosed in a sleeve 17.
Patent GB-685694-A (GB)
Title: Improvements in or relating to the preparation of guanidine salts
Filed: 1949-08-24
Abstract: Guanidine salts are prepared by heating gaseous ammonia and carbon dioxide together with finely-ground calcium cyanamide at a temperature between 65 DEG  and 250 DEG  C. in a closed reaction zone under superatmospheric pressure and under substantially anhydrous conditions, the mol. ratio CO2 : Ca being at least 2.4 : 1 and the mol. ratio NH3 : Ca being at least 6 : 1.  Ammonium carbamate may be employed in the reaction as a source of at least part of the ammonia and carbon dioxide, and the calcium cyanamide may be used in the form of lime-nitrogen.  Preferably, the ammonia, carbon dioxide and calcium cyanamide should be in the mol. ratio of 20-30 : 3-7 : 1. Improved yields result if the reaction vessel or autoclave is periodically or continuously partially vented during the reaction period.  Inert solvents, e.g. methanol, may be present.  In examples: (1)-(2) calcium cyanamide, carbon dioxide and ammonia in specified amounts are forced into an autoclave and heated for 2 hours at 150 DEG  C. under the autogeneously developed pressure; (3) lime-nitrogen, ammonia and carbon dioxide are reacted in an autoclave and the effects on yield of employing various temperatures in the range 65-250 DEG  C., various CO2 : Ca mol. ratios from 2.4-8.1 : 1, various NH3 : Ca mol. ratios from 6.1-21.7 : 1 and various reaction times of from 1/12 -16 hours are illustrated; (4)-(5) lime nitrogen, carbon dioxide and ammonia in specified proportions are heated in an autoclave at 150 DEG  C. for 2 hours during which the initially developed pressure of 1600-1800 lbs./sq. inch is reduced by continuous venting to 480-425 lbs./sq. inch.  In all cases, the reaction mass is extracted with hot water whereby the guanidine carbamate formed is converted to the carbonate which is leached out and recovered from the aqueous extract by evaporation or by salting out with ethanol; other salts may be obtained by leaching the reaction mass with the corresponding aqueous acid. Specification 661,966 is referred to.  The Specification as open to inspection under Sect. 91 is not restricted to the use of the above-mentioned mol. ratios and includes examples employing lime-nitrogen, ammonia and carbon dioxide using lower CO2 : Ca mol. ratios.  In one example a glass cylinder is provided with a porous glass disc in the centre; in one half is placed ammonium carbonate and in the other, lime-nitrogen.  The charged tube is placed in an autoclave, ammonia is forced therein and then the vessel is heated at 150 DEG  C. for 2 hours and guanidine carbonate recovered as above.  This subject-matter does not appear in the Specification as accepted.
Patent GB-601535-A (GB)
Title: Improvements in and relating to the composition and preparation of catalyst masses
IPC: B01J37/00
Filed: 1945-08-28
Abstract: A catalyst comprises an agglomerated or briquetted mass containing amorphous carbon, one or more of the hydroxides of magnesium, calcium, strontium, barium, and beryllium, and an alkali hydroxide or carbonate, e.g. potassium carbonate.  In preparing the catalyst an oxide, or compound convertible to the oxide, of the metals specified above may be mixed with charcoal, activated carbon or carbonaceous matter, e.g. a tar emulsion; briquettes are formed from the mixture calcined at 700 DEG -850 DEG  C. and then sprayed with water to form the hydroxides.  About 5 per cent of ferric oxide may be present in the catalyst mass.  The catalysts may be used in the production of hydrogen from carbon monoxide and steam, and in the removal of carbon disulphide from gases by reaction with hydrogen; reference is also made to the conversion in the presence of steam of acetylene into acetone or alcohols, phthalic acid or anhydride to benzoic acid, and ethylene to alcohol or ether.  By using the catalysts below the dissociation temperature and pressure of the hydroxide present, formation of the oxide is avoided, and this prevents disintegration and loss of activity of the catalyst mass. Specifications 355,861, 367,577, 417,829, and 464,667 are referred to.ALSO:The catalytic conversion of acetylene into acetone or alcohols, phthalic acid or anhydride to benzoic acid, or ethylene to alcohol or ether, is carried out in the presence of steam using as catalyst an agglomerated or briquetted mass containing amorphous carbon, one or more of the hydroxides of magnesium, strontium, barium and beryllium, and an alkali hydroxide or carbonate (see Group III).
Patent GB-1176737-A (GB)
Title: Umbrella Hat.
Inventor: SLATON JOYCE MARIE
IPC: A45B23/00
Filed: 1967-05-12
Abstract: 1,176,737. Umbrellas. J. M. SLATON. 12 May, 1967 [31 May, 1966], No. 22175/67. Heading A4P. An umbrella hat comprises a collapsible box-like housing 4 for receiving and protecting the head of the user supported by a handle 5, at least the side walls being transparent. The top wall 6 and side walls, 8, 10, 12 and 14 are supported by framelike ribs or strengthening members 26, 28, 30, 34 and 36 the horizontal ribs 28, 30, 34 and 36 are broken or knuckled at their mid-points 32 and 38 to permit folding. The front wall 10 may be cut away somewhat as at 16. To collapse the device, the top 16 is folded inwardly along lines 18, 20 and 22 and sides 10 and 14 are simultaneously folded inwardly. The whole may then be folded inwardly about the centre of side 12 and fastened by a clasp. The handle may be removable or may be arranged to fold or telescope.
Patent GB-347069-A (GB)
Title: Valve mechanism for rock drills
IPC: B25D9/24
Filed: 1930-07-23
Abstract: 347,069. Rock drill valve-gear. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Ingersoll-Rand Co.; 15, Exchange Place, Jersey City, New Jersey, U.S.A.) July 23, 1930, No. 22197. [Class 124.] A fluid-actuated rock drill is provided with an oscillating plate valve which is reversed by compression and suction due to release and also by pressure and suction set up by auxiliary passages which are continually supplied with leakage fluid and are alternately opened to exhaust and closed by the piston. The rifle bar O passes through an aperture L in the plate K which closes the cylinder end and forms the valve seat. The bar head P carries spring-pressed pawls Q which engage teeth R in a ratchet S. The back head of the drill is seated on the ratchet S, and is provided with a handcontrolled rotary throttle valve Y communicating with a reservoir e. The distributing-valve k is an oscillating-ring plate with converging seats o, p which meet to form a fulcrum q, and is housed in an annular recess f in the ratchet to which fluid is supplied by passages g. Fluid is supplied to the cylinder ends by passages h, j. Pins s in the plate K engage holes r in the valve. The drill is provided with a pair of kicker passages u, v to prevent damage due to excessive, forward, piston stroke. The passage u enters the cylinder to the rear of the exhaust port D ; the passage v enters the cylinder at a forward point. The passages enter cavities w of considerable area in the valve seats in the plate K. Leak passages x beyond the valve edge lead to the passages u, v and set up suction therein when they communicate with the exhaust. When the piston covers passages w, v, the fluid supplied through passages x helps to throw the valve. The valve is shifted immediately or at about the time of delivery of the blow. The disposition of the leak passages prevent further fluttering. Air may be blown into the drilled hole by closing the exhaust port D by means of the valve shown.
Patent GB-952470-A (GB)
Title: Improvements in or relating to textile machines
IPC: B65H54/70
Filed: 1960-06-24
Abstract: 952,470. Cleaning spinning &c. machines. W.REINERS. June 24, 1960 [July 1,1959],No. 22210/60. Heading DIF. A bobbin-winding machine comprises, at each station or group of (2-5) adjacent stations, a duct extending therethrough from the front i.e. operator's side, to the rear with its central axis in a vertical plane which is perpendicular to the longitudinal direction of the machine. Air is drawn into the duct past the yarn and yarn-engaging parts of the station &c.,thereby to entrain air-borne fluff and dust in the vicinity thereof, and through a filter in the duct. In the machine shown in Fig. 1, a current of air is drawn by a variable-speed fan 24 past a supply spool 10, through a slowly rotating filter drum 12 and into a duct 23 formed by frame parts 1 and 1a, thence through adjustable flaps 25. A removable tray 15 and receptacle 18 receive heavy bodies such as slubs, drawn from a cleaner 7, and a mat 22 of fluff and dust which has been liberated from the running yarn F or tensioner 6, accumulated on the lower part of drum 12, lightly compressed by guide plate 19 and finally removedby a stripper plate 16. In a modification, Fig. 2, the fan 24 coacts with a stationary plane filter grid 26 and a protective plate 9 is rockable into position 9<SP>1</SP> to allow the grid to be cleaned by a suction nozzle 27. The apparatus shown in Fig. 3 comprises an endless moving filter grid 28 from which a mat 22 of fluff &c. is progressively removed by stripper plate 16 and transferred to receptacle 18 by an endless conveyer belt 31. A separate or a single air duct and associated fan 24 may serve each station or group: two or more fans may be driven from a single belt, Fig.4 (not shown).
Patent GB-222144-A (GB)
Title: Improvements in pneumatically operated typewriting machines
IPC: B41J5/38
Filed: 1924-09-20
Abstract: 222,144. Devlaminck, R. S., and Desailly, (nÚe Pesce), J. Sept. 20, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Pneuntatic type-lever actions; strip-controlled driving-mechanism.-Type-levers a, Fig. 1, are actuated by collapsable bellows d connected by tubes f to chambers g which are connected to a suction pipe. h, and are provided with double valves i j actuated by keys m, the bellows collapsing when the keys are touched. The impression can be adjusted by means of a cock n. The bellows and valves may be arranged so that the bellows expand to operate the type-levers. To permit control by means of a perforated strip, the valve-stems v may be connected to diaphragms arranged over cavities in the base of the chambers g, the strip passing over a tracker-board connected to the chambers by means of tubes. Pneumatic letter-spacing and carriage-returning mechanisms.-The paper-carriage is controlled for letter-spacing by means of an escapement r, Fig. 1, actuated by bellows q in communication with the valve-chambers g. The paper-carriage C, Fig. 4, is provided with a rack 1 geared by means of pinions 2, 3 to a rack 5 on a longitudinally-movable cylinder 6 which is provided with a partition 7, and is mounted on supports 8, 9. Tubes 10, 11 passing through the supports lead to a suction-chamber 12 provided with a quadruple valve 13 - - 16 which is normally held in the position shown by a spring 18. Normally, the chamber 21 is under atmospheric pressure, and the paper-carriage is urged to the left, release for letter-spacing being effected by the escapement. When the valve is moved to the left, by means of a key 17, the chamber 20 is put under atmospheric pressure, and the paper-carriage is returned. Pneumatic ink-ribbon mechanism. - Feeding- mechanism is actuated bv bellows t communicating with the valve-chambers g referred to above.
Patent GB-318360-A (GB)
Title: Improvements in foot wear
IPC: A43B9/10
Filed: 1928-08-01
Abstract: 318,360. Playshoe Co., Ltd., Barlow, R. H., Crabtree, H., and Barton, P. Aug. 1, 1928. Insoles; connecting uppers fo insoles and soles; soles.-The insole portion of a compound sole for boots, particularly those of the Veldtschoen type, is formed from a sheet of material composed of asbestos fibres impregnated with an adhesive material, such as balata or gutta-percha in solution, and moulded or compressed to form a sheet. The insole portion A is secured by an adhesive to a sole of crepe or other rubber B, rubber composition, or of leather or other material and then stitched to the upper C. When the sole is of crepe rubber, an outer sole D may be solutioned to it to cover the stitches, and a heel lift D<1> may be also affixed. Alternatively, the sole B when of rubber or other material may be formed with projecting surfaces to protect the stitches.
Patent GB-1515324-A (GB)
Title: Process for treating sewage sludge and fertilizer products thereof
IPC: C02F11/13
Filed: 1975-05-22
Abstract: 1515324 Granulated sludge ORGONICS INC 22 May 1975 [23 May 1974] 22287/75 Heading C1B Sludge (e.g. sewage sludge) is reduced to # ins particle size or less, is reduced in moisture content to 30-50%, mixed at 30-80C and pH 3-5 with an aqueous alkaline N methylolurea prepolymer solution (made by reacting 2:1 urea:formaldehyde for 10-30 mins) to condense said prepolymer, and drying the product, at less than 95C, to 3-10% moisture. The prepolymer may be sprayed into an agitated bed of sludge particles. Product (e.g. fines) may be recycled to aid in the drying stage. An NH 4  salt, e.g. the sulphate or phosphate may be added to the partially dried sludge. The prepolymer may be contacted with the sludge for a time before polymerizing for sterilization purposes.