baber/WOPTO huggingface dataset:
Patent GB-521083-A (GB)
Title: Improvements in or relating to collapsible photographic cameras provided with light sensitive cells
IPC: G03B7/12
Filed: 1938-11-25
Abstract: 521,083. Photographic cameras with photoelectric exposure meters. KODAK, Ltd. Nov. 25, 1938, No. 34324. Convention date, Nov. 27, 1937. [Class 98 (i)] A collapsable photographic camera is provided with a light-sensitive cell having an adjustable shield in front to vary the light reaching it, together with means for moving the shield to light-passing and light-excluding positions when the objective is moved respectively from operative to inoperative position, thus protecting the cell from light when the camera is not in use. The invention is described as applied to the folding camera described in Specification 497,302, the light-sensitive cell controlling the lens diaphragm as described in Specification 497,301. In this form a plurality of lenses 22 in front of a multi-cell baffle 20 focus the light on to the sensitive cell 19, and a vertically-slidable grid 21 biassed downwardly by a spring 23 co-operates with turned-down front edges 26 of the baffle partitions 20 to form a hit-and-miss grating which controls the light reaching the cell 19. The position of the grid 21 is varied in accordance with the exposure setting of the shutter by means of a pivoted cam-arm 24 engaged by a cam 32 on the exposure setting ring 33 and engaging a cam 25 on the grid. The cam-arm 24 is mounted in the hinged cover 18 which, as described in Specification 497,302 contains the shutter-operating machinery and when this cover is lowered in closing the camera the arm 24 moves away from the grid cam 25 allowing the spring 23 to move the grid 21 to the fully-closed position.
Patent GB-371336-A (GB)
Title: Method for the preservation of articles of food, fodder and other organic substances
IPC: A23L3/358
Filed: 1930-11-14
Abstract: Vegetables, roots, green folder, &c. are preserved by keeping in a solution containing hydrochloric acid and common salt, the hydrochloric acid content of the solution being predetermined so that it does not act injuriously on the protein content of the materials and the salt being used in an amount sufficient to prevent the dissolving action of the acid on the protein.  A method by which the amounts of acid and salt to be used are determined is described.  The hydrochloric acid and common salt may be partly replaced by other acids and salts, e.g. sulphuric acid or Glauber's Salt, and the salt by sugar.  Before use, the acid in the materials may be neutralized by sodium bicarbonate or other alkaline materials and the salts produced removed by washing.  Salts originally present which are removed in the final washing of the materials may be added thereto subsequently. Examples of solutions used are given.  The treated materials may be transported in vessels filled with carbon dioxide, nitrogen, or other indifferent gas.ALSO:Fish, meat, and other foodstuffs, vegetables roots, green fodder, and other organic materials are preserved by keeping in a solution containing hydrochloric acid and common salt, the hydrochloric acid content of the solution being predetermined so that it does not act injuriously on the protein content of the materials, and the salt being used in an amount sufficient to prevent the dissolving action of the acid on the protein.  A method by which the amounts of acid and salt to be used are determined is described.  The hydrochloric acid and common salt may be partly replaced by other acids and salts, e.g. sulphuric acid or Glauber's salt and the salt by sugar.  Before use the acid in the materials may be neutralized by sodium bicarbonate or other alkaline substance and the salt produced removed by washing. Examples of solutions used are given.  Salts originally present which are removed in the final washing of the materials may be added thereto subsequently.  The treated materials may be transported in vessels filled with carbon dioxide, nitrogen, or other indifferent gas.
Patent GB-429198-A (GB)
Title: Improvements in or relating to mops for polishing floors or the like
IPC: A47L13/30
Filed: 1933-12-08
Abstract: 429,198. Reservoir mops. BANKS, W. A., 8, Thornton Road, Rusholme, WOODS, G. F. and WOODS, R. S., 372, Dickinson Road, Longsight, both in Manchester. Dec. 8, 1933, No. 34545. [Class 19] A reservoir mop for polishing floors in which polish is ejected from a container 10 by pressure on a handle is characterized by springs 16 which raise the feed member 12 directly pressure is taken off the handle. The mop is of the reversible type with a felt pad 9 and a finishing brush 13.
Patent GB-908163-A (GB)
Title: Method of and apparatus for treating metals by heat
Inventor: PICKTHALL JOHN EDWARD
IPC: C21D1/74
Filed: 1959-10-13
Abstract: A method of heat-treating a metal comprises placing the metal in a gas-tight chamber, filling the chamber with an inert gas, heating the metal in the inert gas while maintaining the pressure within the chamber at or near atmospheric pressure and, after heating, passing a cooling fluid round the chamber to accelerate the cooling of the metal.  The chamber may be evacuated of air and then filled with an inert gas, e.g. argon.  Electric heating may be employed and air may be blown round the chamber to assist in cooling.
Patent GB-1591522-A (GB)
Title: Apparatus for controlling a plurality of looms or knitting machines
IPC: G05B19/418
Filed: 1977-08-17
Abstract: The system contains an input block (1), a ferrite memory (2) to which a pulse generator (5) is connected via a counter (4), and actuating members (10) which are controlled by a change-over switch (8) from the address register (9) and photoelectric transmitter (11). Between the ferrite memory (2) an the change-over switches (8) a register memory (3) is connected in order to control each actuating member (10). As a result, it is not necessary for the machines of a group to work synchronously and the individual machine does not need any program carrier and reader. <IMAGE>
Patent GB-921452-A (GB)
Title: Improvements in tea or like trolleys
Inventor: LIDDLE JAMES
IPC: A47B31/04
Filed: 1960-10-11
Abstract: 921,452. Tables &c. T. N. WALDRON Ltd. Aug. 3, 1961 [Oct. 11, 1960], No. 34722/60. Class 52 (3). A folding tea trolley comprises two inverted U-shaped frames 1, 2 pivoted together intermediate their ends on pins 3, cross bars 4 . . . 7, an upper tray 8 pivotally mounted on bar 4 and engageable with bar 5 by a keeper 13 and a lower tray 9 pivoted to bar 6 and engageable to bar 7 by means of a catch 12, the lower tray 9 being biased upwardly by torsion springs 16. Specification 877,805 is referred to.
Patent GB-918625-A (GB)
Title: Improvements in automatic gas lighters
IPC: F23Q2/167
Filed: 1959-05-29
Abstract: 918,625. Cigarette lighters using liquefied gas. FLAMINAIRE M. QUERCIA. May 29, 1959 [June 3, 1958; May 4, 1959], No. 34740/62. Divided out of 918,624. Drawings to Specification. Class 75 (3). The whole of the subject-matter of this Specification is included in Specification 918,624.
Patent GB-1498423-A (GB)
Title: Removal of aluminium-rich coatings from heat resisting alloys
IPC: C23F/
Filed: 1975-08-07
Abstract: 1498423 Stripping Al rich coatings from Ni and Co alloys ROLLS-ROYCE Ltd 7 Aug 1975 [7 Aug 1974] 34760/74 Headings C7D and C7E A diffused Al coating is removed from a component of Ni-base or Co-base high-temperature alloy by immersion in a solution of HNO 3 -50-70 vol %, H 2 SO 4 -25-50 vol %, balance, if any, water. Treatment is preferably at 80-90C; the removal process is self-extinguishing when the Al content in the diffused interlayer becomes minimal; any remaining Al may be removed in a solution consisting of FeCl 3  75-90%; H 2 SO 4  5-20% and HF 3-7%, immersion being for 2-15 minutes.
Patent GB-1379967-A (GB)
Title: Marine propellar stern bearing shaft design and seal arrangement
IPC: B63H1/20
Filed: 1972-07-25
Abstract: 1379967 Stern frame assembly MOBIL OIL CORP 25 July 1972 [20 Oct 1971] 34764/72 Headings B7S and B7V [Also in Division F2] In a marine propulsion assembly propeller shaft 8 extends through cylindrical journal 14, an annular space forms an oil passageway between the shaft and the journal and retaining nut 10 holds drive ring 6 against thrust surface 8a on the shaft. The drive ring is spaced apart from the rear end of the cylindrical journal to permit flow of oil and is fastened by bolts 50 to the rear end of hub 4 of the propeller. Bearing 12 is between the hub and the journal and seal 18 forward of the bearing is positioned between the hub and stern frame 16 to exclude sea water from the bearing. The seal comprises interconnected labyrinth passageways 36, 40 between the stationary 32 and moving 30 surfaces of the seal, which are out of rubbing contact with one another and air or fresh water is injected through passage 42 into the intermediate part of the labyrinth. In the embodiment shown the journal comprises a cylindrical stern tube which is an extension of the stern frame.
Patent GB-511257-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M1/04
Filed: 1938-12-01
Abstract: 511,257. Spray carburetters. BECK, L., BERTELE, L., and DUSTERLOH, A. Dec. 1, 1938, No. 35069. Convention date, Dec. 1, 1937. [Class 7 (iii)] A starting or accelerating device comprises two passages opening into the induction pipe behind the throttle and controlled by a single valve 7 which, in one position admits air through one, the smaller passage 5, to neutralize suction on a starting nozzle opening into the passage between the valve 7 and the induction pipe 1, and which in a second position admits combustion air to the other, larger, passage and cuts off the air from the smaller passage to permit the suction to draw fuel through the starting nozzle. The air for both passages enters a chamber 6 containing the valve 7 through an adjustable opening 10. In a modification, the passages open into opposite sides of the induction pipe and have separate outlets 33, 34 to the atmosphere, the outlets being remote from the induction pipe and oppositely disposed to permit a valve 36. carried by a thermo-sensitive strip 37 mounted on the exhaust pipe 30, to close the larger passage 34, 25 when the strip is hot and the smaller passage 33, 21 when it is cold. Fuel is supplied from a reservoir 23 which is raised by the suction when it has been emptied, fuel passing a calibrated orifice 39 beneath it is emulsified by air entering through an inlet 40. A cam on the throttle valve spindle may be adapted to close the opening 33 and open the inlet 34 against the pressure of the strip to facilitate acceleration.
Patent GB-822630-A (GB)
Title: Method of carrying out catalytic reactions
Inventor: COPPOCK PHILIP DALTON
IPC: B01J8/02
Filed: 1956-11-16
Abstract: <PICT:0822630/III/1> <PICT:0822630/III/2> A process for carrying out exothermic reactions by contacting a solid catalyst with fluid reactants in a reaction chamber consisting of a plurality of compartments containing catalyst, comprises feeding the reactants into one compartment, through further compartments, withdrawing the reaction products from another compartment, thereafter feeding the reactants to the compartment next to the previous inlet compartment, through other compartments, withdrawing reaction products from another compartment, and thereafter repeating the process, moving the feed point in turn to as many successive compartments as desired.  In one embodiment wherein a reaction chamber is divided by partitions into compartments filled with catalyst, the reactants are introduced at 1 (Fig. 1), passed through the compartments in an anti-clockwise direction, and removed from the last compartment by an outlet 6.  As the temperature of the catalyst mass 7 in the last compartment rises, the inlet 1 is changed from its original position to this compartment in a clockwise direction (Fig. 2), so that the catalyst 7 therein is cooled by the reactant stream, and the reactants are passed through the compartments in an anti-clockwise direction as before and catalyst mass 8 becomes the last to contact the reactants.  This is repeated to control the temperature of the catalyst.  In another embodiment the reactants are divided into two streams, one passing through compartments in a clockwise direction and the other in an anti-clockwise direction, the products being removed through an outlet diametrically opposite the inlet; the positions of the inlet and outlet are moved in a clockwise direction as before.  In a further embodiment the reaction stream is again divided and the streams sent through the compartments in clockwise and anti-clockwise directions, but the last compartment on each side is omitted, these being cooled by separate streams of reactants; again the positions of the inlets and outlets are moved round.  In another embodiment the reaction chamber comprises a series of separate vessels containing catalyst connected by pipes so that reactants are fed into one vessel, and passed through the other vessels in series, the positions of the inlet and outlet being changed at intervals to control the temperature of the catalyst.
Patent GB-959219-A (GB)
Title: Iron alloys for use as filler rods in welding
IPC: B23K35/04
Filed: 1961-09-29
Abstract: An iron alloy for an electrode or filler rod for welding carbon steels in a protective gas consists of: .C.0.08-0.15%, .Mn.1.0-1.5%, .Si more than.0.65-1.0%, .Ti.0.10-0.25%, .Al.0.2-0.5%, .P or S.up to 0.03% each, with or without .Cr.0.1-0.15%, and/or one or more of V, Mo, Ni, Ta/Nb, B, alkaline earth metals and/or rare earth metals in a total of up to 2.5%, balance iron and impurities. Any Ti content in excess of 0.10% may be replaced by an equal amount of Zr. Prior art alloys for filler rods are disclosed consisting of: .C.0.08-0.15%, .Mn.1.0-1.2%, .Si.0.2-0.5%, .Ti.0.08-0.25%, .Al.0.01-0.05%, .P or S.up to 0.03% each, with or without .Cr.0.1-0.15%, balance iron and impurities
Patent GB-913770-A (GB)
Title: Improvements in or relating to shell moulds
IPC: B22C1/16
Filed: 1959-10-19
Abstract: In a method of making a shell mould (see Group XXII) by successively dipping an expandable pattern of e.g. wax or synthetic resin, into a slurry of e.g. sillimanite or aluminium silicate in a binder liquid, and then dusting the coating with solid refractory particles, the average size of the particles of the first layer is smaller than that of the last layer.  This process gives a mould which has a fine inner and a coarse outer structure.  The binder may be ethyl or sodium silicate, and it may be hardened with carbon dioxide or ammonia.  The binder may include a high temperature binder which may contain e.g. an alkali metal fluoride or an ammonium phosphate, an alkali metal borate or tetraborate or a mixture of an alkali metal fluoride and an alkali metal borate or tetraborate or an aqueous solution of phosphoric acid or an alcoholic solution of phosphorus pentoxide. Details are described of the particle sizes of the dusting material.
Patent GB-325038-A (GB)
Title: Improvements in guards for carding-engines
IPC: D01G31/00
Filed: 1928-11-30
Abstract: 325,038. Pickford, J. Nov. 30, 1928. Guards, controlling. - A guard for carding- engines, which, in its operative position, prevents a belt from being engaged by a fast pulley, and in its inoperative position locks the cylinder door until the cylinder has been brought to rest, is supplemented by a device, which for the purpose of grinding, allows the belt to be transferred to the fast pulley, and can only be operated by giving to the cylinder a small reverse motion. The strap arm 1 is connected to an arm 7 which has a nose 14 riding on an incline 15 of a rod 5 connected to the door 6 of the cylinder. The arm 7 is held in position by a pin 12 and a shoulder 11 on a pivot 9, sliding in a lug 21 and in an auxiliary casing 16 and abutting against a roller 17. When the cylinder door is closed, the rod 5 slides in a slot in a casing 2, the arm 7, 1 falls and a roller 3 drops into a slot 15a to prevent the door from being opened whilst the cylinder is rotating. When the cylinder is brought to rest, the roller 3 is rolled upwards out of the slot by a small roller 4, and the movement of the rod 5 in opening the door raises the arm 7 into its normal position for preventing the belt from being shifted on to the fast pulley. To grind the cylinder, the arm 7 and pivot 9 is pressed against spring 13 towards the cylinder, which is given a slight reverse motion with the roller in contact and the latter is moved up into the position shown in Fig. 4. The arm 7 can now be moved laterally, and into a depending position, in which it is held against the rod 5 by the spring 13. When the door is closed, and the arm 6 withdrawn, the arm 7 snaps into its normal lateral inoperative position, and the guard functions as before. In lieu of the roller 17, a finger pivoted to the member 9 may be used. In an alternative construction, Figs. 6, 7, the locking mechanism and the roller function as previously described, but the arm 34 can swing only and the rod 41, 42 is pivoted at 43. When it is desired to grind, the pivot 39 carrying an L- shaped support 35 is moved towards the reversed cylinder, allowing the rod 41, and the arm 34 to drop. On closing the cylinder door, the arm 41 is withdrawn into the casing, the support 35 snaps into position, and the door becomes locked.
Patent GB-1200351-A (GB)
Title: Improvements in and relating to radiation detector circuits
IPC: H02H9/02
Filed: 1967-08-01
Abstract: 1,200,351. Photo-electric detector circuit. HONEYWELL Inc. Aug.1, 1967 [Aug.22, 19661, No.35373/67. Heading G1A In a fail-safe ultraviolet radiation detector circuit a diode is reversed biased to prevent an output from the circuit if the radiation detector short circuits. During half cycles of the A.C. supply when the upper end of the transformer secondary winding is positive, capacitor 14 together with the A.C. voltage ignite the Geiger tube 10 when irradiated with ultraviolet radiation. The capacitor 14 discharges to fully ionize the tube and recharges via diode 13 during alternate half cycles. Capacitor 17 and resistor 16 integrate the current through diode 13 and at 18 give an indication of the presence of ultraviolet radiation. If the Geiger tube short circuits, short circuit current flows through diode 30 to charge capacitor 19 to a voltage higher than is reached during normal working and is sufficient to reverse bias diode 13 so capacitor 14 does not charge and no output is given and further full secondary voltage is prevented from appearing across diode 30 and capacitor 14.
Patent GB-294842-A (GB)
Title: Improvements in or relating to coal conveyors and the like
IPC: B65G27/00
Filed: 1927-12-31
Abstract: 294,842. Poxon, W. Dec. 31, 1927. Addition to 284,556. Jigging conveyers.-The rope 4 used for connecting adjacent sections of the conveyer as described in the parent Specification is passed below pulleys 8 carried by brackets 9 which are anchored to the floor in order to hold down the conveyer sections on their roller or other cradles.
Patent GB-525956-A (GB)
Title: Improvements relating to processes for the manufacture of polarizing materials
IPC: G02B5/30
Filed: 1938-12-05
Abstract: 525,956. Polarizing apparatus herapathite and similar compounds. INTERNATIONAL POLAROID CORPORATION. Dec. 5, 1938, No. 35427. Convention date, Dec. 4, 1937. [Class 97 (i)] Also in Group IV] In the production of minute needle-shaped herapathite crystals by precipitation from a mixture comprising quinine, hydrogen ions, iodine ions, sulphate ions and iodine, the ratio of the quinine units to hydrogen ions in the mixture is maintained between the limits 1 to 1, 1 to 3, preferably 1 to 2, and the concentration of the iodide ion is maintained substantially in excess of the theoretical value calculated from the empirical formula for herapathite, C 20 H 24 O 2 N 2 .¥H 2 SO 4 .¢HI.I, preferably at 1¢ times and not more than 3 times that value. Crystals of a herapathite-like body may also be so produced from a similar mixture containing selenate ions instead of sulphate ions. The concentration of iodine in the mixture is preferably no greater than the theoretical value. The iodide ions may be provided by including in the mixture arsenic or antimony triiodide or stannic iodide in an amount substantially 1¢ times the theoretical amount ; or by including iodide of ammonium, potassium, sodium, magnesium, barium, or ferrous iron in an amount substantially three times the theoretical amount. When producing herapathite crystals, the quinine reagents may be quinine sulphate, quinine bisulphate or quinine dihydriodide. Preferred methods of procedure are described. Crystals so formed may be distributed throughout a transparent medium and the polarizing axes of the crystals oriented within the medium. For this purpose, the reagents employed to precipitate the crystals may be dissolved in a volatile solvent of the transparent medium, and the medium dissolved in the liquid after the precipitation. As the medium may be used cellulose acetate, nitrate, acetate butyrate, acetate stearate, or acetate propionate dissolved in ethyl acetate and methanol ; or a vinyl resin such as polystyrene, a polymerized ester of vinyl alcohol such as the acetate, or a polymerized ester of acrylic acid or its derivatives such as the methyl methacrylate dissolved in a chlorinated hydrocarbon, e.g. carbon tetrachloride or chloroform, or an aromatic hydrocarbon such as benzene.
Patent GB-490497-A (GB)
Title: Systems for the remote control of loudspeakers
IPC: H03G1/02
Filed: 1937-12-22
Abstract: 490,497. Transmission systems. LORENZ AKT.-GES., C. Dec. 22, 1937, No. 35505. Convention date, Dec. 22, 1936. [Class 40 (iv)] A receiver including a loud-speaker 4 fed by modulated carrier from a distant transmitter 7 and controlled for operation by signals over the line, is retroactively connected with the transmitting station so as to indicate there the performance of the loudspeaker. High-pass filters 8, 5, line 11, rectifier 2, and amplifier 3, are provided as shown and low-pass filters 6, 9 enable part of the sound currents to be transmitted back to the indicator 10. To put the receiver into operative condition a low-frequency current is first impressed upon the line to render the high-frequency portion of the receiver effective. Whereupon a carrier modulated by a further control frequency is transmitted to render the low-frequency stage effective.
Patent GB-1186050-A (GB)
Title: A Process for the Production of an Alkali Metal Borohydride
Inventor: VIT JAROSLAV
IPC: C01B6/00
Filed: 1967-08-02
Abstract: 1,186,050. Alkali metal borobydrides. CESKOSLOVENSKA AKADEMIE VED. 2 Aug., 1967 [13 Aug., 1966], No. 35518/67. Addition to 1,155,304. Heading C1A. An alkali metal borohydride is prepared by a process according to claim 1 of the parent Specification 1,155,304, by reacting at a temperature between 250‹ and 350‹ C. inclusive in the presence of hydrogen an alkali metal fluoborate or methyl borate and finely divided sodium or potassium hydride in an homogenized suspension in a thin film of an hydrocarbon capable of steam distillation and which has a critical temperature greater than the maximum reaction temperature. The preferred boron materials are trimethyl borate or sodium fluoroborate and the preferred hydride is sodium hydride. Two examples of the production of sodium borohydride are given the hydrocarbons being xylene and motor spirit, and the boron compounds trimethyl borate and sodium fluoroborate respectively. Toluene may also be used as the hydrocarbon medium.