baber/WOPTO huggingface dataset:
Patent GB-1001081-A (GB)
Title: Improvements in or relating to film-thickness measuring instruments
Inventor: YOUNG REGINALD SEARLES
IPC: G01B7/06
Filed: 1960-09-01
Abstract: 1,001,081. Measuring thickness electrically. BRITISH ALUMINIUM CO. Ltd. Aug. 23,1961 [Sept. 1,1960], No. 30219/60. Heading G1N. The thickness of an insulating coating on a base metal is determined by means of an oscillator feeding an investigating coil brought into proximity to the film. The arrangement being that changes in the amplitude of the oscillator output caused by resistance variations of the base metal are automatically compensated . Oscillator construction. The coil 7 forming the sensing coil is connected to a transformer 3 the secondary of which is coupled to a tuned circuit 8,10,11 and a variable capacitor 12. The signal developed across 12 is fed to a cathode follower V3 to develop a signal which is fed back to the grid of V1 which then acts as an electroncoupled oscillator. A further feed-back signal, developed across 11 is fed back through thermistor 27 to provide temperature compensation. The tuned circuit is set to a frequency less than that expected when the coil 7 is adjacent the test piece. If the sample resistivity increases, the frequency of oscillation decreases as does the amplitude of oscillation. However, a frequency decrease results in an increase in the impedance of the parallel tuned circuit because of its low tuning and this results in an increase in feed-back to maintain the amplitude constant. The output of the cathode follower V3 is also fed through amplifier V4 via a full-wave rectifier circuit 20 indicator 46 provided with a protective rectifier 47. A sensing head housing the coil 7 is described in detail and forms the subject-matter of Specification 1,001,082.
Patent GB-1122666-A (GB)
Title: Process for the production of flameproof hardened resins from polyepoxides
Inventor: VOGT WILHELM
IPC: C08G59/40
Filed: 1965-08-16
Abstract: Epoxy resins are hardened to flameproof products using an aromatic ortho hydroxycarboxylic acid anhydride ester of an acid of trivalent or pentavalent phosphorus as hardener. The specified hardeners are of the general formulae <FORM:1122666/C3/1> or <FORM:1122666/C3/2> <FORM:1122666/C3/3> or <FORM:1122666/C3/4> wherein R1 is Cl, Br, -N = C = S, or an alkyl, aryl, aralkyl, alkaryl, chloroalkyl, alkoxyl, aryloxy, or cycloalkyl group and R11 is an alkylene, arylene or divalent heterocyclic radical. Optional ingredients of the curable compositions include accelerators, conventional hardeners for epoxy resins and monoepoxides. The compositions are useful for moulding, casting and coating applications.
Patent GB-247342-A (GB)
Title: Improved process of and apparatus for degasifying or deaerating liquids
IPC: B01D19/00
Filed: 1924-12-18
Abstract: 247,342. Elliott, W. S. Dec. 18, 1924. Feedwater, heating. - Feedwater is passed through two feed heaters in series, in contact with steam in counter current, the steam passing through the first heater without much condensation. and the water being de-aerated therein. while the steam is mainly condensed in the second heater, in which the main heating of the water takes place. Water is supplied through the passage 3 to the heater 2. the quantity being automatically regulated by a valve 5 controlled by a float; 4. The water passes over a distributor 19 in contact with steam, and then passes through a pipe 10 to the heater 9. A valve in the pipe 10 is controlled by a float. 12. Steam is supplied through a valve 14 controlled by a thermostat 15 and passes from the heater 9 through a pipe 16 to the heater 2. A condenser 7 is provided to condense any exhaust steam, and an ejector 18 to induce a flow of steam through the apparatus.
Patent GB-324340-A (GB)
Title: Improvements in and relating to apparatus for coating paper, films and the like
IPC: G03C1/74
Filed: 1928-10-22
Abstract: 324,340. Pease, W. H. Oct. 22, 1928. Coating materials in long lengths.-Apparatus for coating paper, films, &c. with a drying solution or emulsion comprises, in a single unitary structure, a feed roll of the material to be coated, at least one coating trough and coating roller, a cooling roller, a series of guide rollers, thermostatic means for controlling the temperature of the solution in the coating trough and of the cooling drum, thermo-sensitive means for stopping the operation of the machine in the event of non-permissible variation of temperature of the materials or of suitable parts of the machine, for example the emulsion troughs, cooling rollers or other pertinent parts of the machine, and a common drive operating simultaneously the feed roll, coating rollers, guide rollers and cooling rollers. The emulsion troughs, each of which is followed by a cooling drum, may be heated by electric heaters either directly or through an oil or water bath In the apparatus shown, the paper or film in rolls is placed in an unwinder 1 and runs over guide rollers 3 mounted on roller or ball bearings to the first coating device which consists of a trough 5 of pure nickel or of a suitable alloy fitted with a thermostatically controlled electric heater and with a dipping roller made of the same material as the trough. In the case of a double coating, the trough is fitted with a second roller which is fitted with a fine adjusting device and an instantaneous stopping and starting device. The paper or film runs vertically from the coating trough to a copper or nickel cooling drum 7 about 30 inches in diameter and cooled by water or brine. It then passes over guide rollers 8, 9, 10 to a further coating device 11, 12. In the preparation of photographic film one of these devices coats the back of the film with a substance such as gum or resin which prevents the generation of static electricity by keeping the material of the film from contact with parts of the camera. This coating may be washed from the film during developing and finishing. All the rollers over which the material passes are driven by belt or chain. From the final coating device the web runs vertically to a copper or nickel cooling drum 15 and then passes over guide rollers to the suction table of an automatic festooning apparatus of known type. The whole apparatus is driven from one common drive, such as an electric motor. Stoppage of the machine, for instance by the operation of the thermally operated means associated with the heating or cooling means may be effected by stopping the motor or operating a clutch on the main drive.
Patent GB-485909-A (GB)
Title: Improvements in sound-insulating plates or sheets
IPC: E04B1/86
Filed: 1937-11-08
Abstract: 485,909. Sound - insulating plates. ISAKSEN, N. J., and MOLDESTAD, B. Nov. 8, 1937, No. 30579. [Classes 20 (iv) and 87 (i)] [Also in Group XIII] A floor, wall, ceiling, &c. 5 is sound insulated by means of a porous fibre plate 1 provided with square, rectangular, triangular circular or other shaped bosses 2 arranged perpendicularly thereto and contacting with the surface to be insulated, the bosses being of such area and mutual spacing that the maximum ratio between their area and the area of the whole plate is limited to about 0'8 and the minimum ratio to that permitted by the bearing strength of the bosses. The latter may be produced by pressing a fibre plate or by securing loose bosses thereto. A finishing layer of cement 6 may be applied.
Patent GB-775314-A (GB)
Title: Improvements in and relating to breathing apparatus
Inventor: DANIELS LESLIE STEWART
IPC: A62B9/02
Filed: 1954-10-25
Abstract: 775,314. Respirators &c. NORMALAIR, Ltd. Oct. 24, 1955 [Oct. 25, 1954], No. 30640/54. Class 81(2) Breathing apparatus for use in noxious atmospheres or under water or for administering anaesthetics comprises a metal or synthetic plastic casing b having a gag - type mouthpiece a and a connection o to a cylinder of compressed air or oxygen &c., the admission of which to the casing is controlled by a tilt valve j having a stem operated by a rubber disc g mounted on a snap-action diaphragm f carrying an exhalation valve m. The stem of the valve j passes through an aperture q in a perforate baffle p against which the rim of the diaphragm is held by a spring s. The casing has a cover having an aperture e through which a finger may be inserted to open the valve j. In normal operation, inhalation results in a lowering of the pressure in the casing so that the diaphragm moves to the left under the ambient pressure and effects opening of the valve j. Upon exhalation, the pressure in the casing rises thus snapping the diaphragm over to the right, the valve being closed by the pressure in the air cylinder.
Patent GB-433685-A (GB)
Title: Improvements in or relating to escapement mechanism for electric clocks
IPC: G04C3/04
Filed: 1933-11-04
Abstract: 433,685. Electric clocks. VUILLE, L. SANDOZ-, La Rochette, Auvernier, NeuchÔtel, Switzerland. Nov. 4, 1933, No. 30724. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 9, 1934]. [Class 139] The invention relates to a clock wherein a spring 12, periodically energized by an electromagnet 3, maintains the balance 2 and drives the hands. The spiral spring 12 is mounted about the pivot of and biasses a lever 11. In the position shown, the lever 11 is held stationary by a stop 16, Fig. 2, engaging the end 12b thereof. The stop 16 is fixed to a plate 14 screwed to the free end of a pivoted spring 13 normally held against a fixed stop 15. The armature 4 of the magnet 3, pivoted at 5, has one end 4<a> engaged by a fork 11<a> of member 11. A hook 6 fixed to the end 4<a> advances the hands (not shown) through a ratchet wheel 19 also engaged by a stop pawl 21. Also secured to the armature is a screw 7, nuts 8, on which serve to adjust the position of a pivotal contact member 9. During clockwise movement of the balance 2 a projection 17 thereon wipes idly past the end of spring 13 and a projection 18 thereon passes the end 12<a> of lever 11. During anticlockwise movement the projection 17 moves the spring 13 from the stop 15. The lever 11 is released by this movement and rocks clockwise under the action of spring 12. During this movement of member 11 the end 12<a> imparts an impulse to the balance through projection 18 and the fork 11<a> rocks the armature 4 to close contacts 10 to energize the magnet 3 which attracts the armature to reset the lever 11 to the position shown and open the contacts 10. In a modification, Fig. 3, the spring 13 is replaced by springs 13<a>, 13b connected by a rigid plate 141 and coacting with a projection 18<a> on the balance 2. An arm on the plate 14<1> normally locks the rocking member 11<1> biassed by the spring 121 and coacting with a projection 17<a> on the balance. The operation is as described above.
Patent GB-941400-A (GB)
Title: Improvements relating to dielectric devices
Inventor: FRANKS JOSEPH
IPC: H01L21/00
Filed: 1959-09-09
Abstract: 941,400. Solid state devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 19, 1960 [Sept. 9, 1959], No. 30813/59. Heading H1K. A solid state device is made by evaporating a thin layer of pure dielectric material on to a first conducting layer to form an ohmic contact therewith and providing on the dielectric layer a conducting layer in rectifying contact therewith. In an example a layer 12, Fig. 2, of stannic oxide or indium is deposited on a glass plate 11, and pure cadmium sulphide or selenide is evaporated thereon to form a microcrystalline or monocrystalline layer 13 in ohmic contact with layer 12. From this blank diode rectifiers or triodes may be formed. For instance: a triode may be formed by applying a conductive electrode 14 to the evaporated layer, evaporating a second layer 15 similar to layer 13 over this electrode, and finally providing a conductive electrode 16 on this second layer. Electrode 14 is selected to provide a rectifying contact to layers 13 and 15, and may, for example, be an-- evaporated copper layer, or a layer formed from colloidal graphite, whereas electrode 16 may be in ohmic or rectifying contact with layer 15. Analternative triode is formed by applying two interdigitated electrodes to the evaporated layer 13, one forming a rectifying contact therewith and the other an ohmic or rectifying contact. The blank may also be made into a rectifier diode by merely applying a single rectifying contact to layer 13. The technique of evaporating the semi-conductor layer enables any ofthese devices to be formed in situ as part of a printed circuit. A typical diode with an ohmic contact of area 1 cm.<SP>2</SP>, rectifying contact of area 6 mm.<SP>2</SP> and semi-conductor layer 2Á thick gives a forward current of 1-8 mA. and a reverse current of 1 ÁA. with an applied voltage of 2.5.
Patent GB-873318-A (GB)
Title: Process for fixing pigments on fibrous material
IPC: D06P1/44
Filed: 1958-09-26
Abstract: An aqueous bath or paste containing a pigment, a resinous condensation product containing reactive carboxyl groups and obtained by reacting at least one polycarboxylic acid with at least one polyhydric aliphatic alcohol, which condensation product is dissolved in an alkaline medium, and a water-soluble precondensation product derived from phenol, urea or a derivative thereof or melamine, and an aldehyde, is applied to fibrous materials and the latter are subsequently dried and then heated. Additionally the aqueous bath or paste may contain other natural or artificial resins and/or softening agents, and/or thickening agents, e.g. an oil-in-water emulsion of an organic solvent that is only sparingly soluble in water.  The fibrous materials to be treated may be fabrics made of natural or regenerated cellulose, polyamide or polyester threads.  In an example cotton or rayon fabrics were treated with (1) a printing paste containing copper phthalocyanine, the condensation product of phthalic acid and 1,3,5 hexanetriol, the precondensate from melamine, ethylene glycol and formaldehyde, triethanolamine and a thickening agent emulsion of alkylaryl-polyglycolether in water and benzine before drying the fabrics at 80 DEG C. and heating for 5 minutes at 140 DEG C. Other specified printing paste constituents include tetramethylol-acetylenediurea, hexamethylol melamine, pentamethylol melamine-butyl ether as water-soluble precondensates, chlorinated copper phthalocyanine and the dyestuff obtained by coupling 1-amino-2-methyl-4-chlorobenzene and 1-(21 : 31-hydroxynaphthoyl-amino)-2-methyl-4-chlorobenzene as pigments, the product formed by condensation of maleic acid and diethylene glycol and phthalic acid pentacrythrite ester as resinous condensation products, ammonium caseinate and wheat starch-tragacanth as thickeners.  The heating of the fibrous materials may be carried out in the presence of steam. Alternatively the fibrous materials may be steamed after heating and drying.  Specification 810,548 also is referred to.
Patent GB-158767-A (GB)
Title: Improvements in and relating to fluid flow indicators
IPC: G01P13/00
Filed: 1919-12-10
Abstract: 158,767. British Thomson - Houston Co., Ltd., (General Electric Co.). Dec. 10, 1919. Indicating interruption of flow of fluids.-In a device for indicating fluid flow, a section 5, Fig. 1, of a conduit is made of non-magnetic material and surrounded by a solenoid 13 connected to a source of alternating current, a lamp or other signalling device being included in the circuit. Inside the pipe section is a core 14 of magnetic material having a tapered seat adapted to engage the tapered head of a member 17 slidably mounted on a post 18, provided with stops 20, 21. The core 14 has a greater range of movement than the member 17, its upward limit being fixed by a ring 25 adapted to engage a shoulder 24. The fluid flow causes reciprocation of the core, and the lamp is thereby caused to become bright and dim. In a modification, the core 14a, Fig. 3, is not reciprocated but moves away from a stationary member 17<a> the amount of the movement indicating the velocity of the flow.
Patent GB-744718-A (GB)
Title: Improvements in or relating to oxygen supply valves for breathing apparatus
IPC: A62B9/02
Filed: 1953-11-09
Abstract: 744,718. Respiratory apparatus. AUERGES. AKT.-GES. Nov. 9, 1953 [Nov. 13, 1952], No. 30954/53. Class 81(2). [Also in Group XXIX] An oxygen supply valve unit for breathing apparatus has the whole of a valve assembly including an oxygen supply valve 12, an auxiliary valve 31 controlling the valve 12, and a lung pressure controlled element e.g. diaphragm 25 for actuating valve 31, arranged in a two-part housing 1, 2, and a diaphragm 5 for actuating the valve 12 is clamped between the joint forming surfaces of the two-parts and each of the parts has a port 44, 7 respectively for admitting inhalation suction to the diaphragm 25 and for conducting the oxygen from the valve 12 to the apparatus connected at 16. The supply valve slides in a seat 8 and is pressed by a spring 15 through a plate 14 on to the diaphragm 5 which carried a member 18 with an orifice 19. Inhalation at 44 moves the diaphragm 25 downwards and through a compound lever system 38, 42 opens the auxiliary valve to evacuate the oxygen which has passed through the orifice 19 to the chamber above diaphragm 5. The diaphragm 5 is thus lifted against the spring 20 to open the supply valve by the pressure of oxygen from a reducing valve connected at 7.
Patent GB-1123648-A (GB)
Title: Universal gas burner
IPC: F23D14/10
Filed: 1967-07-05
Abstract: 1,123,648. Gas burners. SAUNIER DUVAL. 5 July, 1967 [2 Nov., 1966], No. 30996/67. Heading F4T. A burner capable of operating with different kinds of gas has a body portion composed of two stamped parts 10, 11 held together by a looking tab (12) and a member 22 is clipped over the upper portion of the parts 10, 11 and is formed with a number of parallel slits from which arches 24 have been pushed out so that a gas air mixture issuing from the orifices produces individual flat flames (26) between the adjacent arches.
Patent GB-743385-A (GB)
Title: 8-bromotheophylline-2-amino-2-methyl-1-propanol
IPC: A61K31/00
Filed: 1953-11-09
Abstract: The invention comprises a salt of 8-bromotheophylline with 2-amino-2-methyl-1-propanol, which is made by reacting the two components in an aqueous medium and recovering the product from the solution, preferably after filtering the solution.  The salt is used as a diuretic.  In an example, 8-bromotheophylline is suspended in water, 2-amino-2-methyl-1-propanol is added, the mixture is stirred and, if necessary, heated to effect solution and the resultant solution is filtered and evaporated to dryness under reduced pressure to give the desired salt.ALSO:A diuretic composition contains as its active ingredient the 2-amino-2-methyl-1-propanol salt of 8-bromotheophylline.
Patent GB-1111357-A (GB)
Title: Improved fuel injection pump
Inventor: WOLFF GEORGE D
IPC: F02M55/00
Filed: 1966-07-11
Abstract: 1,111,357. Fuel injection pumps. ALLISCHALMERS MANUFACTURING CO. July 11, 1966 [July 15, 1965], No.31057/66. Heading F1A. In a fuel injection pump comprising a rotary and reciprocating distributing and injection plunger 22, driven from an engine driven shaft 21, and having a rotatable and axially movable control sleeve 44 actuated by a control rod 51, the control rod is provided with a flat (68), Fig. 4 (not shown) which connects vapour venting cavity 62, communicating with the supply chamber 19, via a passage 64 with governor chamber 18 communicating via port 39 with the fuel supply reservoir 36. The control rod opens passage 64 when the rod is manually moved to position the control sleeve 44 to connect the pumping chamber 41 with the supply chamber 19 on the pumping strokes of the plunger 22. Fuel is supplied under pressure to the chamber 19 by a gear pump provided by gears 31, 35 in the train rotating plunger 22. The pressure in chamber 19 is regulated by a relief valve 37.
Patent GB-153329-A (GB)
Title: Improvements in or relating to vapour lamps or burners
IPC: F23D99/00
Filed: 1920-11-04
Abstract: 153,329. Coleman, W. C. Aug. 31, 1917. [Convention date]. Lighting burners, lighting-holes and doors for. -In an incandescent vapour lamp, the metal reflector 60 is provided with an opening 61 having a displaceable cover to allow the insertion of a lighted match to heat the vaporizing- tube 39 at starting.
Patent GB-223772-A (GB)
Title: Improvements relating to quick-return motions
IPC: B24B47/04
Filed: 1923-12-13
Abstract: 223,772. Gear Grinding Co., Ltd., Orcutt, H. F. L., and Snarry, J. W. Dec. 13,1923. Converting rotary into reciprocating motion.- Relates to a quick-return motion for planing, shaping or slotting machines and for grinding tools of the kind in which a rotary grinding disc is carried by a reciprocating slide traversed by a crank or cam acting on the slide. The crank is driven by a two-speed gear in which the lower speed is automatically picked up by a ratchet clutch m, Fig. 2, upon release of a friction or other clutch n, which is engaged to accelerate the return stroke. Gears b, d secured to a shaft f driven from the driving-shaft a mesh with gears c, e loose on a shaft g, which through a worm i and crank, not shown, reciprocates the slide j, Fig. 1. The gears c, e are connected alternatively to the shaft g by the disc clutch n and free-wheel m for operative and return strokes respectively. The clutch n is operated automatically from the slide j by means shown in Fig. 1. The disc is pressed into engagement by a spring 3 surrounding a bar t and acting on the end of a fork-lever s. A projection w upon the slide j strikes a Collar v fast on the bar t to effect this engaging motion. The clutch is held in engagement by the lower arm of a bell-crank lever z engaging a notch y<1> in a stop-collar x fast on the bar t. The last movement of the projection w to the left compresses a spring u while the lever z is running down an incline y on the stop x. Near the end of the return stroke, a projection 2 on the slide strikes the lever z and unlocks the bar t. Thereupon the spring u asserting itself thrusts the bar t to the right, and a collar 4 carries the lever s with it, positively releasing the clutch n. The hand-wheel 5 and gearing 6 are for turning the shaft g by hand when setting up.
Patent GB-152893-A (GB)
Title: Automatic doffing apparatus for the simultaneous removal of full bobbins or cops on spinning and twisting machines and also the simultaneous mounting of empty bobbins ortubes to take the places of the removed full ones
IPC: D01H9/04
Filed: 1919-12-15
Abstract: 152,893. Graf, F. Dec. 15, 1919. Doffing - arrangements for spinning and twisting machines, of the type comprising a rod which carries the holders for the full and empty bobbins and is rotatable in blocks sliding on arms pivoted about a horizontal axis, are provided with means for engaging the rod in the required positions for removing and replacing the bobbins, and the blocks are moved longitudinally of the arms by means of screwed sleeves. A rod 18, Fig. 1, which carries bobbin holders 19, extends longitudinally of the machine and is rotatably mounted in blocks engaging screwed sleeves 4 on arms 3 hinged to the spindle rail. Guide rods 36 hinged to the spindle rail engage diametral holes in the rod 18 and in a sleeve 40, Fig. 7, freely mounted thereon to ensure the correct position of the rod to bring the empty bobbins above the spindles. When the rod 18 is at the outer end of the arms, the guide rods are free from the holes therein and are housed in extensions 41 of the sleeves, thereby allowing the rods to be turned. The sleeves 4 are rotated by bevel gearing and a hand-wheel 9 to raise and lower the rod 18 to remove full bobbins from, and to place empty bobbins upon, the spindles. When the full bobbins are removed, a hand-wheel 12 is operated to pay out a wire rope 14 connected to the arms 3, whereupon the arms, moved initially by a spring 16, turn outwardly into the position shown on the right-hand side of Fig. 1. In this position the rod 18 is turned through 180 degrees ; the arms are then drawn back to the vertical position and the hand-wheel 9 operated to lower the empty bobbins on to the spindles. The bobbin-holders consist of grooved plates secured on the rod 18 between distancepieces. During spinning the arms 3 are turned so as to house the parts carried thereon below the spindle rail.