baber/WOPTO huggingface dataset:
Patent GB-699888-A (GB)
Title: Photographic materials and processes
IPC: G03C5/305
Filed: 1952-01-25
Abstract: 699,888. Photographic silver images. DU PONT DE NEMOURS & CO., E. I. Jan 25, 1952 [Jan. 26, 1951], No. 2117/52. Class 98 (ii). The colour of developed photographic silver images is modified by incorporating in the photographic silver halide emulsion or applying thereto at some stage in its preparation of processing to produce a fixed and dry photographic record, a small quantity of a salt of a mercapto-azole with an N-hydrocarbon (preferably N-aryl) substituted biguanide. The salt may be incorporated in a colloid (e.g. gelatin) sub-coating or super-coating layer, in the developer, or in a solution applied to the processed layer, which may or may not have been dried, and which is then hot-dried. The mercapto-azole may be 2-mercaptobenzthiazole, 2-mereaptobenzoxazole, or 5-mercaptotetrazole or an alkyl or aryl derivative thereof. In example 1, the effect of the addition of phenylbiguanide-2-mereaptobenzthiazole salt to a silver chlorobromide emulsion is compared with a similar control emulsion and with a similar emulsion containing 2-mercaptobenzthiazole as regards warmth of image colour, stabilization of image colour on hot drying, and emulsion sensitivity. In example 2, a similar comparison is made between the effect of gelatin supercoats containing phenylbiguanide- 1-phenyl-5-mercaptotetrazole salt and containing 1 - phenyl - 5 - mercaptotetrazole and of a plain gelatin supercoat. In example 3, a print is treated with an aqueous solution of phenylbiguanide - 2 - mercaptobenzthiazole salt and hot dried. In examples 4, 5 and 7, o-tolylbiguanide salts of 1-phenyl-5-mercaptotetrazole, 2-mercaptobenzthiazole, and 2-mercaptobenzoxazole, phenylbiguanide salts of 1- phenyl - 5 - mercaptotetrazole, 2 - mercaptobenzoxazole, and 2 : 5 - dimercapto 1 : 3 : 4 - thiadiazole, and diphenylbiguanide salts of 2 : 5 : dimercapto - 1 : 3 : 4 - thiadiazole and 1 - phenyl-5-mercaptotetrazole are added to silver chlorobromide emulsions. In example 6, processed prints are treated with aqueous solutions of o-tolylbiguanide 1-phenyl-5-mercaptotetrazole, 2 - mercaptobenzthiazole, and 2 - mer - captobenzoxazole salts and phenylbiguanide 1- phenyl - 5 - mercaptotetrazole and 2 - mer - captobenzoxazole salts. Other salts, e.g. of 1-α- naphthyl - 5 - mercaptotetrazole, 5 - mercapto - 1: 3 :4-triazole, thiobarbituric acid, mercapto- - thiadiazole, and mercaptopyrimidines, may be used. The emulsions may contain sensitizing - dyes, or antifogging, hardening, wetting, or matting agents, and may have as binder gelatin, agar-agar, polyglucuronic acid, zein, collodion, part-hydrolysed cellulose acetate, cellulose esters of lactic or glycolic acids, alkali metal salts of cellulose esters of dicarboxylic acids (e.g. phthalic acid), polyvinyl alcohol, partially hydrolysed polyvinyl acetate and interpolymers thereof with styrene or maleic acid, or a watersoluble polyvinyl acetal. Specification 527,283 is referred to.
Patent GB-258772-A (GB)
Title: A new or improved device for facilitating the removal and insertion of the valves ofinternal combustion engines
IPC: B25B27/24
Filed: 1926-01-26
Abstract: 258,772. Parkes, P. Jan. 26, 1926. Prizing-tools.-The spring 6 of an internal combustion engine valve is held compressed by a sleeve 1 which is inserted below the valve collar 2 while the valve is held raised by means of a lever 7, and when the valve is lowered its end enters the bore of the sleeve and is thereby freed from spring pressure so that the cotter 9 can be removed through a gap in the sleeve 1. Various forms of sleeve modified for different types of engines are described.
Patent GB-130272-A (GB)
Title: Improvements relating to Files and the like.
Inventor: WHYTE SAMUEL
IPC: C23F1/06
Filed: 1918-01-30
Abstract: 130,272. Whyte, S. Jan. 30, 1918. Etching.-Worn files and other appliances having multiple cutting-edges are renovated by etching with a warm aqueous solution of nitric and hydrochloric acids without the aid of electrolytic action. The solution preferably consists of about equal parts of the acids and of water, and is kept at a constant temperature. After treatment with the acid, the files &c. are washed, preferably in lime water or other alkaline solution, and wiped with oil.
Patent GB-109008-A (GB)
Title: Improvements in and relating to Steam and other Fluid Engines.
IPC: F01L21/04
Filed: 1917-02-15
Abstract: 109,008. Nichols Pump & Engineering Co., and Nichols, W. W. Feb. 15, 1917. Combined mechanical and fluid-actuated gears; expansion.-The adjacent cylinders of duplex or compound direct-acting pumps and other engines are controlled by fluid-actuated piston valves controlled by a single auxiliary valve actuated by the piston-rod of one of the cylinders. The auxiliary chest and the cylinders are provided with separate steam supplies. Means for transferring the tappet mechanism from one rod to another and for cutting out one or more of the cylinders are described. One or more cylinders in the compound engine may be cut out and the exhaust of the preceding engine put to atmosphere. An adjustable tappet-actuated piston cutoff valve may be arranged between the distributing-valves of pairs of cylinders. The auxiliary valve 16 is actuated by a lever 18 from the rod 3 of one of a pair of cylinders, is arranged in a chest 17 with a separate steam supply 40, and is provided with edges 16a, 16b and a port 16<c> for controlling separate auxiliary admission and exhaust ports 27 - - 30 of a piston valve 6 controlling the cylinder 1, and ports 16d, 16<e>, 16f controlling separate admission and exhaust ports 31 - - 34 of the valve 8 of cylinder 1<a>. Steam is supplied by a cock 9 through passages 11, 11<a> to the chest 5, and by a cock 12 through passages 13, 13<a> to the chest 5<a>. The valves 6, 8 put the cylinder ports 4, 4a, 7, 7a alternately into communication with the supply and exhaust ports 42, 42a. When the cylinder 1<a> is cut out by closing the valve 12, the valve is stopped by closing plugs 43, 43<a> in auxiliary admission passages. The movement of the spindle 8a may, however, be used to drive a lubricator. When the cylinder 1 is cut out by closing the cock 9, the lever 18 is transferred to the other end of a shaft 20, Fig. 3, the link 19 coupled to the member 44 on the rod 3<a>, the slide valve 16 is changed round, and the direction of the auxiliary exhaust ports 33, 34 changed by means of the plug valves. In the case of more than two cylinders arranged side by side, the valve 16 controls all the piston valves, or, if the engines are wide apart, a number of valves 16 coupled by a cross-head bar may be provided. Expansive working may be effected by a tappet-actuated adjustable cut-off valve 50, Fig. 8, with angular edges which may be arranged between the valve chambers 5, 5a. The steam is admitted to the ends and centre of the cut-off valve chamber. A modification is described wherein the cylinders work compound. The auxiliary exhaust passes to an intermediate receiver which may be put to atmosphere by turning a plug valve.
Patent GB-768751-A (GB)
Title: Improvements relating to bonding high resistance wires to copper or copper alloys
IPC: B23K11/20
Filed: 1955-01-26
Abstract: A fusible wire for welding a high resistance wire to a metal member (see Group XXII) is of an alloy containing Ni 10-30 preferably 18 or 30 per cent; Zn 13-33 preferably 27 or 14 per cent and Cu 50-75 preferably 55 or 56 per cent or is of an alloy containing Ni 24-34 preferably 29 per cent, Co 5-25 preferably 18 per cent and Fe 41-72 preferably 53 per cent.
Patent GB-359333-A (GB)
Title: An improved apparatus for the development of photographic roll films
IPC: G03D13/06
Filed: 1931-01-23
Abstract: 359,333. Developing roll-films. LEITZ, GES., E., Optical Works, Wetzlar, Germany. Jan. 23, 1931, No. 2352. Convention date, Nov. 17, 1930. [Class 98 (ii).] The upper part 3 of a casing has a rotatable holder 7 for winding the film and a separating band from adjacent holders, the lower part of the casing constituting a tank into which the holder 7 can be lowered. The stem 2 of the holder is hollow for filling the tank and has light baffles 5, 6, a liquid outlet 19 from the tank is also provided. A plate 18 on the stem 2 forms a lighttight cover for the tank when the holder is lowered. The upper part 3 is removable for mounting the separating band roll and the film spool 11, and for preliminarily attaching the ends of the band roll and the film to the holder 7. The spool is carried in a magazine 12 which is held in the compartment provided by a turn button 26. The magazine comprises two slotted cylinders, one of which can be turned to open the slot fully by an outside wing or handle 15. A knife or cutter 21 on a sliding holder is provided to sever the film or its backing by which it is attached to its spool. In a modified construction the stem is in two detachable parts, the lower part 2a, Fig. 5, carrying the cover 18 which remains in the tank when the upper part 3 is removed. In this construction the upper part is mounted on the tank 4 bv a bayonet joint, the section below the spool and separating band being fitted with a hinged plate 29, Fig. 4 (not shown). The liquid outlet 33, 19 extends to the bottom of the tank.
Patent GB-164288-A (GB)
Title: Improvements in hand bags, travelling bags and the like
IPC: A45C3/06
Filed: 1921-01-18
Abstract: 164,288. Stember, J. June 29, 1920, [Convention date]. Bags.-A hand, travelling, or like bag has a secret pocket 16 formed in and of the entire width of one side of the lining and closed by a flap 18 secured to the mouth frame 11, the rear of the flap and the front of button fastenings. T h e flap 18 is also constructed as a pocket and similarly closed by a second flap 25.
Patent GB-234864-A (GB)
Title: Method of and apparatus for the recovery and fractional separation of the distillates of shale, coal, and other organic substances
IPC: C10G1/02
Filed: 1924-01-30
Abstract: 234,864. Black, A. G. Jan. 30, 1924. Hydrocarbons, distilling. - Distillation gases from a retort 5 flow downwardly to a pipe 14 one end 15 of which enters a receiver 16 and the other a chamber 20 enclosing a filter 19 of fabric such as linen or silk to remove from the gases vapour which condenses and runs down into the tank 16. The gases then pass through a condenser 22 and second receiver 26 and filter 27<a>, the condensates being removed fractionally. The filter chambers may be operated under pressure and either in conjunction with the filters above described or in lieu thereof.
Patent GB-306532-A (GB)
Title: Improvements in or relating to the lubrication of bearings and lubricants therefor
IPC: F16N7/12
Filed: 1929-01-25
Abstract: 306,532. Penniman, W. B. D. Feb. 23, 1928, [Convention date]. Drawings to Specification. Lubricants for Machinery.-Lubricant used in a shaft or axle bearing is compounded of oil of the lowest practicable viscosity mixed with about 10 per cent of lard or other animal oil having high adhesive properties, or with palm or castor oil or with metallic soaps such as lead oleate or with oils treated with sulphur or oxygen.
Patent GB-847448-A (GB)
Title: An improved machine for vacuum drawing or shaping thermoplastic sheet material
IPC: B29C51/04
Filed: 1959-01-26
Abstract: 847,448. Vacuum-moulding thermoplastic sheet materials. SCHMIDT, M. Jan. 26, 1959, No. 2708/59. Class 87(2). A sheet 15 is fed intermittently from a roller 16 to a clamping frame 14, and a die 9 is raised to stretch the sheet through a lever 11, cam 12, roller 11<SP>1</SP>, and a piston rod 3, which also operates a piston 2 causing vacuum to be applied to the die through a valve 6 and a pipe 8, and cold air to be blown through a valve 5, pipe 7 and nozzle 10 to cool the article.
Patent GB-665296-A (GB)
Title: Improvements in gas fires
Inventor: RAINS EDWARD REGINALD
IPC: F24C3/12
Filed: 1949-02-01
Abstract: 665,296. Gas fires. NORTH THAMES GAS BOARD. March 31, 1950 [Feb. 1, 1949], No. 2791/49. Class 126 A gas fire is provided with non-aerated burners surrounded by a chamber having air inlets controllable in accordance with the quality of the gas supply, the rate of the gas supply and the temperature in the vicinity of the burners or flames. The chamber surrounding the burner tube is provided at the front with a slot the area of which is reduced by slide 8 which is fixed in a position selected according to the quality of gas used. Another slide 9 mounted by means of inclined slots 12 on screws 13 is provided at one end with an opening 16 which accommodates an eccentric 14 carried by the spindle of the gas supply cock, so enabling the area of the slot in the front of the chamber to be altered in accordance with the rate at which gas passes to the burners. Additional screws 17 are provided as limit stops to prevent the slides 8, 9 being brought closer than a predetermined minimum. Air inlet apertudes 18 are also provided in a rearward extension of the chamber. Each aperture is controlled by a plate 19 actuated by a bimetallic strip which causes gradual closure of the apertures 18 as the gas: fire approaches normal operating temperatures. In one form of the invention the plates 19 are. each connected by a pivoted screw and nut to a bimetallic strip 22 anchored to a central pillar 23. In another form of the invention the plates 19 are pivoted to toggle levers 24 fixed to cams 25 each of which is engaged by a bimetallic strip carried on a pillar 27 within a cavity in the firebrick back.
Patent GB-607185-A (GB)
Title: Improvements in or relating to domestic cooking utensils
IPC: A47J27/10
Filed: 1946-01-29
Abstract: 607,185. Cooking utensils; steamers. BAILEY, W. H. Jan. 29, 1946, No. 2829. [Class 66] A cooking utensil comprises an outer pan 1, an inner pan 3 which may be perforated and a lid 6 which has two or more inward projections 7 engaging the outwardly turned flange 4 of the inner pan. One or more notches (not shown) in the flange 4 enable the lid to be engaged or disengaged by rotation.
Patent GB-736005-A (GB)
Title: Electronic time base circuits
Inventor: STONE ALAN
IPC: H03K4/90
Filed: 1952-02-02
Abstract: 736,005. Sawtooth generating circuits. MURPHY RADIO, Ltd. Feb. 2, 1953 [Feb. 2, 1952], No. 2845/52. Class 40 (6). In a sawtooth generator in which during the long flank the output valve receives a rectangular input wave on its grid and is of low impedance, a voltage is injected into an additional impedance in the circuit of the output transformer and deflection coils to linearize the scan. The circuit shown is of the damping diode type with a boost capacitor and includes a pentode output valve operated in the low impedance condition below the knee of the anode voltage/anode current characteristic. Non linearity of the scanning stroke due to the resistance of the anode circuit is prevented by injecting a voltage from an additional transformer winding through a resistance 6 into an inductance 5 in series with the scanning coils. The resistance and inductance may be interchanged if the polarity of the voltage from the winding 7 is reversed. In Figs. 2, 3 and 11 are the conventional ganged inductances used to vary the amplitude of the scan without varying the inductive load on the output valve, and a resistance 12 is added to shape the voltage induced in inductance 8 to linearize the scan. Alternatively winding 7 may provide a compensating voltage in the manner illustrated in Fig. 1 and also supply the voltage for amplitude adjusting inductor 11 of Fig. 2.
Patent GB-662948-A (GB)
Title: Improvements in or relating to dust collecting devices in apparatus for the separation of dust from air
IPC: B01D46/00
Filed: 1949-02-03
Abstract: 662,948. Centrifugal machines. MOLINS, D. W., and MOLINS MACHINE CO., Ltd. Feb. 2, 1950. [Feb 3, 1949] No. 3004/49. Class 23. [Also in Group XXVIII] A dust collector in apparatus, e.g. a cyclone separator for removing dust from air comprises a box-like casing 2 having an opening 1 in its top wall forming an outlet from the cyclone, and containing a dust bin 5 having its open top clamped against an elastic sealing gasket 4 by levers 8 rocked by a shaft 7 to elevate a base 6 supporting the bin 5. The shaft 7 is held in position by its control lever 10 engaging a spring latch 11, and the bin 5 is removed for emptying through an open side 3 of the casing 2.
Patent GB-1475633-A (GB)
Title: Process for forming a cyan dye photographic image
IPC: G03C7/34
Filed: 1975-01-23
Abstract: 1475633 Cyan couplers containing monohydro - polyfluoroalkylcarbonamido groups KONISHIROKU PHOTO INDUSTRY CO Ltd 23 Jan 1975 [25 Jan 1974] 3014/75 Heading C2C [Also in Division G2] 2 - (# - Monohydro - octafluoropentanoylamino) - 5 - [α - (2,4 - di - t - amylphenoxy)- butyramido-]phenol is obtained by treating #- monohydro-octafluoropentanoic acid with PCl 5  to give the corresponding acid chloride which is then reacted with 2-amino-5-nitro-phenol and hydrogenated over Pd/C catalyst, and reacting the resulting 2( #-monohydro-octafluoropentanoylamino) - 5 - aminophenol with α - (2,4 - di - tamylphenoxy)butyroyl chloride in dioxane to give the required product. 2-( #-Monohydrooctafluoropentanoylamino) - 5 - [α - (2,4 - di - tamylphenoxy) - acetamino] - phenol is obtained in a similar manner replacing the α-(2,4-di-tamylphenoxy)-butyroyl chloride with α-(2,4- di-t-amylphenoxy)acetyl chloride.
Patent GB-904346-A (GB)
Title: Improvements in or relating to centrifuges or spin dryers
IPC: D06F49/00
Filed: 1960-01-28
Abstract: 904,346. Spin driers. PHILIPS ELECTRICAL INDUSTRIES Ltd. (Philips Gloeilampenfabrieken N.V.). Jan. 17, 1961 [Jan. 28, 1960], No. 3123/60. Class 34 (2). A spin drier comprises a casing divided into upper and lower chambers by a partition characterized in that the partition has a peripheral flange spot-welded to the casing and the joint between the casing and the partition is sealed by vacuum or pressure impregnation with a sealing compound. The casing 5 is divided in watertight manner into an upper and lower chamber containing drum 4 and motor 5, respectively, by a partition 7 which has a peripheral flange 13 spot-welded to the casing and sealing compound 12 inserted in a channel formed by a re-entrant depression adjacent the periphery of the partition by pressure or vacuum impregnation. In a modification the re-entrant depression is replaced by a normal radius of curvature between the partition and flange. A suitable vacuum may be achieved within the lower chamber by connecting a pressure pump through a resilient bung in a central aperture of the partition, and/or the air pressure in the upper chamber may be raised to force the sealing compound into any crevices in the joint. The sealing compound may comprise polymerized polyvinyl chloride which may contain a softener such as dioctylphthalate.
Patent GB-382825-A (GB)
Title: Improvements in and relating to high tension cut-outs
IPC: H01H85/42
Filed: 1932-02-02
Abstract: 382,825. Fusible cut-outs. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Feb. 2, 1932, No. 3127. Convention date, Feb. 4, 1931. [Class 38 (i).] In a high tension fusible cut-out device in which the fusible element d is disposed within a cartridge, the gas produced upon fusion of the element d is expelled into a chamber connected to the cartridge, and accommodated there at a moderately high pressure. The fusible element d is fused to leads e<1> and e<2>, tensioned by spring f and positioned in the cartridge of insulating material b. A small plate g separates the cartridge from the expansion chamber which comprises a, tube k of hard paper, a cap m with a small orifice o, and an intermediate wall n of small deionizing metal rings or balls.
Patent GB-200121-A (GB)
Title: Improvements relating to hooks and suspension or fastening devices for curtain and other fabrics
IPC: A47H13/04
Filed: 1922-08-04
Abstract: 200,121. Hay, J. P. Aug. 4, 1922. Hooks. - A hook adapted to engage an eyeletted band a &c. on a curtain c comprises a substantially inverted ' U ' portion d provided with an upwardly bent limb f situated between the two limbs of the U,' the engagement of the hook with the curtain being such that the weight of the fabric is imposed directly on that limb of the U which adjoins the upwardly bent limb f.
Patent GB-1519875-A (GB)
Title: Rail fastenings
IPC: E01B9/30
Filed: 1977-01-24
Abstract: 1519875 Rail fastening clips PANDROLL Ltd 24 Jan 1977 [27 Jan 1976] 03187/76 Addition to 1519349 Heading E1G In a resilient rail fastening clip of the kind, Fig. 5, comprising a length of rod at least 08 cm thick bent so that third and fifth portions 9, 8 lie on opposite sides of a first straight-leg portion 7, while second and fourth portions 12, 15 are reverse bends, the underside of the end portion 8, Fig. 9 has a stop face 40 facing the rod end 41 to interlock as in the parent specification with a ramped projection 23 on the clip anchorage block. As shown the stop face 40 is vertical and is a wall of a recess 42-43; in a modification, Fig. 7 (not shown), the flat roof (42) of the recess extends to the rod end (41), which may be widened. Adjacent the vertical face 40, the clip has a horizontal flace face 30 for riding up the ramp surface 24 of the projection 23. In a modification wherein the clip has no fifth portion 8, the stop face and recess are provided near the end of the fourth reverse-bend portion 15.
Patent GB-468674-A (GB)
Title: Improvements in dies for forging metal articles
IPC: B21J13/02
Filed: 1937-02-03
Abstract: 468,674. Metal-forging dies. POHLIG, E. Feb. 3, 1937, No. 3223. [Classes 83 (ii) and 83 (iv)] Making forks &c.-A two part die for forging agricultural forks and the like pronged articles, comprises an upper part 1 and lower part 2 combining to form a die aperture 4 for prong to be operated upon. The die has apertures 5, 6, 6<1> for the prongs not acted upon in any given operation. The number of apertures in the upper part is one less than one half of the number of prongs of the article, if such is an even number, or is the next whole number less than one half if an odd number, and the number in the lower part is one less than the total number of prongs. By reversing the fork during operation, all the prongs may be treated in the die.
Patent GB-305143-A (GB)
Title: Improvements in the manufacture of silver halide emulsions
IPC: G03C1/34
Filed: 1929-01-31
Abstract: 305,143. I. G. Farbenindustrie Akt.- Ges. Jan. 31, 1928, [Convention date]. Addition to 271,475. Emulsions.-An organic compound (other than imidazole or derivative thereof) which forms a stable silver salt of solubility not greater than that of silver chloride is added to a silver emulsion or to a constituent thereof. The effects on the grain formation, tendency to fog, and otherwise, are described, and reference is made to Specification 271,475. Five examples are given. (1) 100 milligrams of thioglycollic acid per 100 grams of silver nitrate are added to the potassium bromide before the silver solution is run into the bromide. (2) 50 milligrams of thiolactic acid are used in the same way. (3) During the manufacture of a highly-sensitive negative emulsion there is added to the gelatin, while it is being digested, 50 milligrams of tetrazole per 100 grams of silver nitrate. (4) To a high speed negative emulsion, made as in example 3, there is added, per kilo, of emulsion, 7 milligrams of 2 : 6-dimercapto-4-keto-3 : 5-diphenylpenthiopen. (5) To a positive emulsion, and before the pouring operation as in example 2, there is added 20 milligrams of allylaminothiobiazodesulphhydrate.