baber/WOPTO huggingface dataset:
Patent GB-979456-A (GB)
Title: An arrangement for the indication of recording of the instantaneous angular positionof a shaft
IPC: G04C13/02
Filed: 1961-08-18
Abstract: 979,456. Shaft-position digitizers. O. C. SELDON. Aug. 18,1961, No. 29898/61. Heading G4H. A wiper having two contacts co-operates with a bank of contacts, the distance between the two wiper contacts being greater than the gap between adjacent contacts in the bank, and a change-over contact is controlled to select the leading wiper contact when the lagging wiper contact is about to leave a contact in the bank, the lagging wiper contact being again selected when that contact reaches the next contact in the bank. In the embodiment described a shaft of a clock rotates at a rate of one revolution/minute and drives wiper 1 over contact I so as to energize relay X when lagging wiper contact 2 a  on a shaft which is driven at six revs/hour is about to leave a contact on bank II. Thus leading wiper contact 2b is selected by contact x when contact 2 a  is traversing a gas, relay X being de-energized when wiper 1 leaves contact I, contact 2 a  having then reached the next contact in bank II. Lamps 16 are energized from rectifier 11 through wiper contact 2 a  or 2b and the respective contacts of bank II so as to represent the "minutes" units digit. The "minutes" tens digit is indicated by lamps connected to bank III, wiper contact 3b being selected by contact y of relay Y when wiper contact 2 a  or 2b energizes one of the first three contacts of bank II. The "hours" units and tens digits are respectively indicated by lamps connected to banks IV, V, bank IV having 24 interconnected contacts, and wiper contacts 4 a  or 4b and <SP>5</SP>a or 5b, which are mounted on shafts driven at one rev/day, being selected by contacts of relay Z. A record of the time at any instant may be obtained by applying a voltage to terminals 26, 27, 28, 29 in succession so as to operate a tape punch 21 via conductors 25 and recording matrix 24.
Patent GB-299361-A (GB)
Abstract: 299,361. I. G. Farbenindustrie Akt.- Ges. Oct. 24, 1927, [Convention date]. Fatty oils.-The deposition of driers in linseed oil varnishes is prevented by converting the free fatty acid in the oil into fattv acid salts of calcium, magnesium, zinc or cadmium. The conversion is effected by adding the metals, or their oxides, hydro-oxides, or carbonates, to linseed oil before or after 'adding the driers, heating the mixture to at least about 100‹ C. to effect reaction, and filtering off the fatty acid salts &c. The amount of added metallic oxide must at least correspond to the free fatty acid present, and usually lies between 0.1 and 1 per cent of the weight of linseed oil. Examples are given.
Patent GB-298958-A (GB)
Title: Improvements in and relating to hollow bodies and method of manufacturing same
IPC: B21D53/78
Filed: 1928-10-17
Abstract: 298,958. Rietti, G. Oct. 17, 1927, [Convention date]. Planes, construction of; fuselages; framework.-Hollow bodies such as the planes, screw blades, body, beams and uprights of aircraft are formed of a single sheet or several overlapped sheets of material such as metal cut to different profiles so that when wound one or more times around a cylindrical or conical core and the external modelling completed the resulting body will have the desired thickness at all its parts. The section of the core may be circular, elliptical, or spiral. Alternatively blanks rolled to a graduated thickness may be rolled or folded to form the required body. Fig. 9 shows a screw blade formed by folding up a single sheet or several sheets of equal or different thickness, the edges of the sheet or sheets being shown in dotted lines. These edges occur on the inside of the blade, the outside being pressed against dies by internal fluid pressure during manufacfure. Fig. 17 shows a two bladed propeller in which the edges of the folded material instead of being welded are connected to mechanism, not shown, at the hub for giving a variable twist to the blades. Wings and struts formed by rolling trapezoidal blanks around cores are described, the external form being given by internal or external dies against which the material is forced by fluid pressure.
Patent GB-245911-A (GB)
Title: Improvements relating to electric welding apparatus
IPC: B23K9/12
Filed: 1924-12-15
Abstract: 245,911. Hume, W. R. Dec. 15,1924. Heating by electricity.-In electric-arc welding- apparatus, the electrode is fed to the work by fluid-operated means. The work carriage 6, Fig. 1, is moved by a flexible line 5 connected to a piston 9 working in a hydraulic cylinder 11. The electrode 12 is simultaneously fed by means of a second line 13 connected to the carriage. The rate of the electrode feed relatively to the rate of traverse of the work is varied by connecting the two parts of the line 13 to different holes 19 in the pivoted lever 18. The angular direction of the electrode is adjusted by shifting the pin 31 on the guide bars 24 into different holes 32 in the horizontal bar 33. The electrode is guided by the guide-sleeve 37 pivoted to a rocking bar 41 supported by the guide-wheels 42 which run along the joint to be welded and run freely over such obstructions as spot welds owing to the pivoted movement of the rocking bar. The electrode is adjusted laterally by means of a hand-wheel 43 operating a transverse screwthreaded rod attached to the member 38. The work and the pivoted cradle 50 are held balanced by the pressure of the guide-wheels so that, should the guide-wheels accidentally leave the jointing groove, the cradle will rotate laterally and the arc will thus be automatically extinguished. The electrode is moved into its initial position by means of a winch 17 geared to a hand-wheel 49. The supply of fluid to the hydraulic cylinder 11 is controlled by the valve 54, Fig. 3, which is opened initially by a screw 53 operating 'the arm 57. After starting, the supply is controlled by the current in the solenoid 63 which is wound in circuit with the electrode and influences an armature on a sliding rod 62, connected to an adjustable tension spring 67. The opening movement of the valve is limited by the stop 72 engaging the adjustable stop 73 and the normal closing movement is limited by the stop 62 and the co-operating yielding stop 77. If excessive current passes through the electrode the resistance of 'the yielding stop is overcome and the rod 62 continues its movement to operate a release valve 81 thus causing the piston to descend and 'the point of the electrode to recede from the work whilst the work moves back correspondingly under the action of the weight 80, Fig. 1. A secondary pipe 92 leads into the main supply pipe 56 and is fitted with a hand controlled valve 93, for example for advancing the work to the starting position. The arc is struck by the action of the solenoid 104, Fig. 4, which when the current flows owing to the electrode touching the work draws back the sliding core 103 to which the electrode is fastened.
Patent GB-602935-A (GB)
Title: Improvements in and relating to the refining of fats
IPC: C11B3/06
Filed: 1945-11-12
Abstract: Low grade fats are refined and their acidity reduced by esterifying their free fatty acids by heating the fats with a lower dialkyl sulphate, e.g. dimethyl or diethyl sulphate, preferably within the range 70 DEG  to 150 DEG  C. in the presence of an acid neutralizing agent, preferably one sufficiently alkaline to react with the sulphuric acid formed in the process but not so strong as to saponify the free fatty acids.  Soda ash, sodium bicarbonate, sodium borate &c. may be used.  If the fat is to be rendered completely neutral or nearly so a small excess of the alkylating agent above that theoretically required according to the acid value of the fat should be used, otherwise smaller amounts suffice.  The quantity of sulphuric acid neutralizing agent used should preferably be slightly in excess of that theoretically equivalent to the amount of dialkyl sulphate used. In an example the acid value of a tallow is reduced from 23 mgm. to 1.0 KOH per gram by heating 1000 parts of the tallow with 32 parts of dimethyl sulphate and 43 parts of sodium bicarbonate for 3 hours at 110-115 DEG  C., provision being made for the escape of the carbon dioxide and moisture evolved.  After cooling to ordinary temperatures the mass is directly suitable for conversion to fatty acid methyl esters according to the methods described in Specification 543,604.  The process has the advantages over those at present in use or previously proposed, that it is applicable to fats having considerable moisture content, involves no loss of neutral fat due to entrainment in soap curds, and does not require the use of high temperatures, a large excess of alcohols, or of sulphuric acid and acid-resisting plant.ALSO:Fatty acid esters of lower mono-hydroxy alcohols, especially those of methyl or ethyl alcohol, are obtained by heating fats containing free fatty acids with a lower dialkyl sulphate in the presence of an agent sufficiently alkaline to react with the sulphuric acid formed in the process, but not so strong as to saponify the free fatty acids.  In an example, 1000 parts of tallow containing about 11 1/2 per cent of free fatty acids are heated with 32 parts of dimethyl sulphate and 43 parts of sodium bicarbonate for 3 hours at 110-115 DEG  C.  The product consisting of a mixture of unchanged fatty acid triglycerides and fatty acid methyl esters is suitable for direct conversion into fatty acid methyl esters according to the methods described in Specification 543,604. The process may be employed for removing any free fatty acids from fatty acid esters of polyhydric alcohols in general.
Patent GB-210843-A (GB)
Title: Improvements in shaving or other reservoir brushes
IPC: A46B11/02
Filed: 1922-11-04
Abstract: 210,843. Hibbert, G. Nov. 4, 1922. Reservoir brushes; bristles, fixing.-A shaving brush comprises a hollow handle 11 of vulcanized rubber, vulcanized fibre, wood, or other material, one end of which is screwthreaded to engage a reservoir cap 14, the other end carrying a feed tube 7 provided with a flexible nozzle 4. The bristles 8 are bound around the tube 7 and are secured to the handle by means of a ferrule 12. The tube 7 may be made of vulcanized rubber or vulcanized fibre and may have a flat, tapered, or conical tip and perforations may be provided in the tip or along the body.
Patent GB-844131-A (GB)
Title: Improvements relating to permanent magnet roller conveyors
IPC: B65G39/00
Filed: 1958-09-22
Abstract: 844,131. Roller conveyers. SPODIG, Ltd. Sept. 22, 1958 [Sept. 26, 1957], No. 30209/58. Class 78 (1). A power-driven permanent magnet roller conveyer includes at least two adjacent rollers 1 of magnetically soft material which are carried by supports 3, 4 of soft magnetic material and are magnetized by permanent magnets 7 inserted in recesses 6 of truncated conical shape in the supports adjacent the end faces of the rollers, the arrangement being such that adjacent rollers are of opposite polarity and the supports form part of the magnetic circuit. The recesses are covered by rings 8 of non-magnetic material and the ends of the rollers are surrounded by 9 of similar material which may be profiled. The axles 2 of the rollers are of non-magnetic material.
Patent GB-1451901-A (GB)
Title: Sealing devices for gas turbine engines
IPC: F01D11/18
Filed: 1973-06-26
Abstract: 1451901 Turbines-rotor blade tip sealing ROLLS-ROYCE (1971) Ltd 20 Sept 1974 [26 June 1973] 30377/73 Heading FIT  The invention relates to a gas turbine engine and to an arrangement for sealing rotor blade tips in which blade tip seal members mounted on the stator casing may be moved radially inwardly or outwardly so as to adjust the tip clearance in response to temperature of the gas leakage through the clearance. The engine shown comprises rotor blades 24 having blade tips 45 which rotate in close proximity to segmental shroud members 25 each of which is formed with a radial flange 26 received between a pair of flanges 27, 28 formed integrally with the stator casing member 23. A further flange 31 is formed integrally with the stator casing member and a lever 29 is pivotally mounted within an opening 32 formed in the flange 31, one end 30 of the lever passing through an opening in the flange 28 to be received within an opening in the flange 26 of the shroud segment. The other end 33 of the lever is received within a flange member 35 to which is secured a temperature responsive ring member 42. The flange member 35 is mounted for radial sliding movement between flanges 37, 38 of the stator casing members 23, 39. Thus in the event of the blade tip clearance increasing, increased flow of turbine working fluid will pass through the clearance, the ring member 42 is heated and expands. The lever 29 thereby pivots about the point 32 in an anti-clockwise direction and so the shroud member 25 is caused to move inwardly whereby the clearance is reduced.
Patent GB-346653-A (GB)
Title: Improvements in or relating to electrode systems for rectification purposes having unsymmetrical conductivity
IPC: H01L29/00
Filed: 1929-10-07
Abstract: 346,653. Static contact rectifiers. DICKER, S. G. S., 20, Holborn, London.- (Naamlooze Vennootschap Philips' Gloeilampenfabrieken; 6, Emmasingel, Eindhoven, Holland.) Oct. 7, 1929, No. 30419. [Class 37.] An asymmetrical resistance for use as a wireless detector or for other purposes consists of two electrodes and an intermediate layer, one of the electrodes and the intermediate layer being mutually adsorbed, i.e. one of the materials is deposited from the other from a vapour, the deposited substance having a lower vapour pressure than in its normal condition ; the Specification describes a test by which it can be determined whether this is the case. The intermediate layer may consist of halides, such as common salt or calcium fluoride. The adsorbal electrode preferably consists of a material having a higher electron emissive power than the other electrode and having no component in common with the intermediate layer. The electrodes may be enclosed in an airtight box-like casing of "Bakelite" &c., one electrode consisting of a sheet of brass or tinfoil on which common salt is deposited by spraying or volatilization. The other electrode consists of magnesium deposited on the salt from vapour and adsorbed thereto. The device shown in Fig. 2 comprises a glass envelope 11 silvered inside and provided with electrodes 13, 16, the electrode 13 being connected to the silvering. The electrodes are at first connected by wires 18, 19 and a spring 17 secured to the wire 19 by fusible material. The wires are coated with common salt which is volatilized by passing a current through them and deposits on the silvered surface. The temperature of the wires is then raised until the spring 17 is liberated and presses against the wall of the tube as shown. Vapour of magnesium, sodium, or potassium is then admitted to the envelope and is adsorbed to the salt. The envelope is then exhausted or filled with inert gas. Instead of a glass envelope a metal envelope, which may itself form the electrode, may be employed.
Patent GB-340627-A (GB)
Title: Improvements in safety devices for the doors of motor vehicles
IPC: B60J5/00
Filed: 1929-10-08
Abstract: 340,627. Vehicle door fastenings. HOLLAND, I., 96, John Street, Biddulph, Staffordshire. Oct. 8, 1929, No. 30432. Addition to 254,081, [Class 44, Fastenings, Lock &c.]. [Class 44.] In safety fastenings for vehicle doors of the kind described in the parent Specification an end of the safety bar is supported in a U-shaped bracket carried on the door-post, the safety bar may carry a bolt serving to secure it until positively released, the weight of the bar may be wholly or partly counterbalanced by a spring, and the bar and door may be released by a cord operated, for example, from the driver's seat. A number of doors may be released simultaneously by cords connected together. The safety bar B, Figs. 1, 2, is mounted on the post on a pivot b provided with a weight-balancing spring b<1>, the other end of the bar resting in a U bracket B<1> secured to the other post. A sliding bolt B<2> on the bar engages under the bracket and the bolt may be withdrawn and the bar raised by pulling a cord C operable from the driver's seat, or by lifting a lever handle C<1>. The door A is hinged to the post carrying bracket B<1> and its opposite edge carries a latch-bolt a<1> engaging a catch-plate on bar B, the catch-plate being withdrawn from the path of the bolt to free the door when bar B is raised. Bolt a<1> may also be withdrawn by a handle a<2>. The pivot b may pass through the door-post and be provided externally with a handle, not shown, by which it may be rotated to lift the bar. A second cord C<2> may be provided to lower the bar when pulled. In modifications, the free end of the bar rests in a U-bracket B<4>, Figs. 7, 8 carried by an arm H pivoted to the door-post and carrying a catchplate D<1> with which the door latch-bolt D engages. The cord C is attached to the upper end of the arm and, when pulled, moves the bracket away from the bar and the catch-plate from the door-bolt. A pin b2 on the bar engaging an aperture in the door A, and a projection a<4> on the door engaging the top edge of the bar, retain the bar until the door is opened. The other end of bar B may, as shown, rest in a recess a<3> in the door-post to which the door is also hinged, in which case the bar falls when released, or may be pivoted to the door-post. The door-bolt may also be withdrawn by a handle C<3> and a spring d may be provided to initiate opening of the door when released.
Patent GB-958678-A (GB)
Title: Photographic developer concentrates
Filed: 1960-09-02
Abstract: 958,678. Photographic developers. KODAK Ltd. Sept. 2, 1960 [Sept. 4, 1959 No. 30436/60. Heading G2C. A concentrated photographic liquid developer which contains no free water comprises a mixture of a hydroxyalkylamine and a hydroxyalkylamine sulphur dioxide addition product or sulphite and a photographic developing agent soluble in the said mixture, both the free hydroxyalklamine and that used for the addition product or sulphite being of the formula RÀNÀR 1 R 2  wherein R is a hydroxyalkyl or dihydroxyalkyl group of 1 to 5 carbon atoms and R 1  and R 2  are each hydrogen, an alkyl group of 1 to 3 carbon atoms or a hydroxyalkyl group of 1 or 2 carbon atoms. For use, the concentrate may be diluted with more than 20 times its weight of water. Only sufficient water may be present for the addition product to be in the form of the hydroxyalkylamine sulphite. Hydroxyalkylamines specified are 2-aminoethanol and its N-methyl, N-ethyl, N-npropyl, N-methylol, N; N-dimethyl, N; N-diethyl and N; N-di-n-propyl derivatives, 2- or 3-aminopropanol, 3-diethylamino-1-propanol, 3-methylaminopropanol, 1-dimethylamino-2-propanol, 3-dimethylamino-1, 2-propane-diol, 4-aminobutanol, 4-diethanolaminobutanol, 5-aminopentanol. 5-diethanolamino-2-pentanol, 2-isopropylaminoethanol, 2- amino-α-methyl-1-propanol, diethanolamine, triethanolamine, 5-diethanolaminopentanol, methylolamine, and trimethylolamine. The developing agent may be p-phenylenediamine, N-methyl-p-aminophenol, N-methyl-o-aminophenol, o- or p-aminophenol, hydroquinone and its methyl, chloro and bromo derivatives, a 1-phenyl-3-pyrazolidone, a 1-aryl-3-aminopyrazoline, 2, 4-diaminophenol, glycine, pyrogallol, catechol, reductone or ascorbic acid, or certain mixutres of such developing agents. The developer concentrates also may contain 8- quinolinol or its 5-sulphonic acid, salicylaldoxime, antifoggants such as benzotriazole, methylbenzotriazole, chlorobenzotriazole, bromobenzotriazole, 6-nitrobenzimidazole, 5-nitroindazole, 1-phenyl- 5-mercaptotetrazole, thiobenzanilide and phenosafranin; or sequestering agents such as ethylenediamine tetracetic acid, 1, 3-diamino-2-propanoltetracetic acid and diglycolic acid. The concentrate of Example 6 contains 2-anthraquinone sulphonic acid, that of Examples 10 and 11 contains α-picolinium (3-phenylethyl bromide, that of Example 18 contains imino-ascorbic acid, and that of Example 23 contains m-cresol. Specification 768,071 is referred to.
Patent GB-1099859-A (GB)
Title: Remote counting device for a meter
Inventor: WALKER LESLIE
IPC: G01F15/06
Filed: 1965-07-17
Abstract: 1,099,859. counting -apparatus GEORGE WILSON GAS METERS Ltd. Oct. 17, 1966 [July 17, 1965], No. 30446/65. Heading G4D. A gas meter drives a shaft 10 bearing two oppositely directed magnets 15 which actuate and release a magnetic reed switch 21 each time they pass, so pulsing an electromagnetic counter which may be outside the building.
Patent GB-1511189-A (GB)
Title: Self-supporting guilding unit such as a roof unit comprising hollow elements of extrudable transparent plastics
IPC: E04D3/28
Filed: 1976-07-22
Abstract: A profile element, in particular for use on roofing surfaces, has two vertical side walls (1, 2) and two horizontal side walls (3, 4), all of which together form a channel. The profile element further has, at one side, strip-shaped coupling elements (5, 6) of L-shaped cross-section and, at the opposite side, has strip-shaped coupling elements (7, 8) of U-shaped cross-section. If two profile elements are fitted together, in each case an L-shaped coupling element (5, 6) is inserted in a U-shaped coupling element (7, 8). A band-shaped locking element (9) is fitted in the resulting channel to provide mutual connection of the profile elements. The profile has an intermediate wall (11) located between the horizontal side walls (3, 4) and, as a result, good heat insulation is achieved. In its longitudinal direction, the locking element has a thickened portion (10) which runs in the form of a web and is respectively aligned with an intermediate wall (11) of each profile element. <IMAGE>
Patent GB-691132-A (GB)
Title: Improvements in or relating to cathode-ray tubes
IPC: C03C27/04
Filed: 1950-12-15
Abstract: 691,132. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 15, 1950 [Dec. 19, 1949], No. 30599/50. Class 39(i). A cathode ray tube comprises a mild steel cone and a glass window sealed thereto with a high melting-point enamel the fluorescent screen being deposited by settling and in order to prevent reaction of the settling liquid with the steel the enamel layer extends up the core a distance greater than that to which the settling liquid rises in the settling process. The enamel is applied as a paste. The window is of glass of high expansion coefficient e.g. iron-glass.
Patent GB-487027-A (GB)
Title: Improvements in holders for thermionic valves and like devices
IPC: H01R33/76
Filed: 1937-11-08
Abstract: 487,027. Two-part couplings. PLESSEY CO., Ltd., COSTA, H. DA, and PACKMAN, P. J. Nov. 8, 1937, No. 30653. [Class 38 (i)] The contacts 13 of a thermionic valve holder or like coupling member are fixed by means of recesses 16 that engage the margins of openings 12 in a base-plate 10 into which the contacts are inserted by a lateral movement. A second plate 19 having openings 20 that fit the upper end 14 of the contacts is then applied to the base-plate to secure the contacts. The plate 19 has the usual central guide hole 22. In a modification, Fig. 6 (not shown), the openings 12 are replaced by closed slots through which the end 14 of the contacts is passed and the contacts are turned through 90 degrees to engage the recesses 16 with the sides of the slot. The plate 19 then prevents the reverse movement and so secures the contacts.