baber/WOPTO huggingface dataset:
Patent GB-834655-A (GB)
Title: Improvements in ionic vacuum pumps
Inventor: GUREWITSCH ANATOLE MATVEY
IPC: H01J41/16
Filed: 1958-08-25
Abstract: 834,655. Discharge apparatus. GENERAL ELECTRIC CO. Aug. 25, 1958, No. 27179/58. Class 39(1). The cathode of an ionic vacuum pump is produced by evaporating metal from the anode to form a deposit on the envelope. In the arrangement shown a gas absorbent metal 13 such as titanium, zirconium, barium, magnesium, aluminium or an alloy thereof is supported on a ring anode 2 which is heated by current from a source ES to evaporate the metal and form a deposit 17 on the wall of the envelope 1 which is previously evacuated to a pressure below 1 micron by a fore pump (not shown). The entry points of the anode support leads 5 and 6 are masked from the deposit by a shield 15 mounted in a bulbous portion 14 of the envelope. Connection to the cathode 17 is effected through a terminal 12 and a deposit 18 of gold, if the envelope is made of glass or ceramic, and a source PS applies a voltage of a few kilovolts between the anode 2 and cathode 17. Alternatively the envelope 1 may be of a non-magnetic metal such as stainless steel, in which case the terminal 12 is omitted. A magnetic field is applied axially of the anode 2 by a magnet (not shown). The anode 2 may comprise one or more intertwined resistance wires of tantalum coated with titanium or overwound by a coil of titanium. An alternative form of anode comprises a hollow circular tube supported by a single lead and containing a gas absorbent metal such as barium. The tube is ground away to provide thin lateral surfaces through which the barium permeates and is evaporated by inductive heating.
Patent GB-713404-A (GB)
Title: An improved device for hand-line fishing
IPC: A01K89/08
Filed: 1952-10-29
Abstract: 713,404. Fishing tackle. SKARSTEN, P. Oct. 29, 1952 [Jan. 21, 1952], No. 27183/52. Class 48 A device for hand-line fishing comprises a preferably cylindrical casing 1 having an outer peripheral wall around which the line can be wound, a handle 8 on one side of the casing for holding the device with one hand while casting the line with the other hand in an axial direction of the casing, a spool 2 rotatably mounted in the casing and on which the line can be wound when the device is not in use, and an aperture 12 in the peripheral wall of the casing through which the line can pass when being wound on the spool. The handle 8 is secured to a lid 5 which is attached to the casing by bayonet fastenings 9, 10 and which is provided on its inside with oppositely disposed sets of hooks for holding artificial bait, spare lines and other tackle. The spool 2 is mounted on a shaft 3 secured to the bottom of the casing and is spaced from the lid so that it does not foul the tackle carried therein. A projection 13 forms a handle for rotating the spool. A slot 11 extends from the aperture 12 to the top edge of the casing to enable the line to be moved from the aperture into the casing.
Patent GB-323200-A (GB)
Title: Improvements in microphones
IPC: H04R21/02
Filed: 1928-09-22
Abstract: 323,200. Green, H., and Celebritone, Ltd. Sept. 22, 1928. Microphones; diaphragms. - A carbon granule microphone consists of a block of insulating material 1 having a shallow recess 2 for the granules and holding two electrodes 3, the recess being deepened near the electrodes 3 so as to accommodate a larger number of granules in the active granule layer near the electrodes. The electrodes 3 are held in place by caps 4 provided with a metal nipple 6 connected to the carbon electrode 3 by a spring 7, the leads being taken from nipples 6. Openings 17 provide for addition of granules. The diaphragm 11 is preferably of gelatinous substance, such as gelatine and potassium bichromate, and may be made by pouring the gelatinous fluid over the granules and subsequently solidifying the film so formed. It may be protected by a gauze 14. The back wall 9 of the recess may be curved as shown, or plane, provided that the depth increases from the centre to the electrodes. The opening 2, exposing the active layer of granules preferably has circular sides 10.
Patent GB-1099667-A (GB)
Title: Carton
IPC: B65D5/10
Filed: 1966-06-17
Abstract: 1,099,667. Cartons. KELLOGG CO. June 17, 1966 [July 6, 1965; May 26, 1966], No. 27287/66. Heading B8P. A carton comprises bottom closure flaps 13<SP>1</SP>, 17<SP>1</SP>, 22<SP>1</SP> and top closure flaps 13, 17, 22 hinged to the walls 10, 11. Outermost flap 22 has hooked end tabs 24 which engage slots 15 in the innermost flaps 13. Slots 15 each have an inclined portion 16 enabling the hook of tab 24 to lock under flap 17. Tabs 24 may have two opposed hooks (28, Fig. 10, not shown) to engage in slots 15 which then each have an inclined portion (29) at each end.
Patent GB-223407-A (GB)
Title: A new or improved hinged joint
IPC: A47G1/16
Filed: 1923-10-31
Abstract: 223,407. Jewsbury & Co., Ltd., J., and Jewsbury, J. Oct. 31, 1923. Pivoting adjustments. - The pivot pin c secured to a swing mirror or other article is encircled by a bent metal strip d that is inserted' downwardly into a box member g attached to the side supporting posts by plates a when assembling the parts of the joint. The member g has inclined sides and causes the member d to grip the pin c so that the mirror may be set into any desired angular position.
Patent GB-462559-A (GB)
Title: Improvements in or relating to parachutes
IPC: B64D17/20
Filed: 1935-10-03
Abstract: 462,559. Parachutes. POOL, J. H. Oct. 3, 1935, No. 27321. [Class 4] A parachute incorporates an air vent in the canopy and means whereby the effective area of the vent is gradually increased automatically by deployment of the canopy and after reaching a maximum is gradually reduced by the approach of the canopy to complete deployment. In one form, a parachute includes a canopy 1 provided with an air vent 2 around which eyelets 3 are provided. Rigging lines 4 extend from the eyelets 3 and over the canopy. A closure-member 5 which is of an area sufficient to close or nearly close the vent 2 has rigging lines 7 led through the eyelets and connected to a central disc 8. A pilot parachute 9 is provided. The disc 8 may be omitted. In a modification, the disc 8 is connected to the apex of the rigging lines for the member by a frangible connection adapted to break after a predetermined time. A cord may be provided such that a manual control can be superimposed on the automatic control, and this may be replaced or combined with an automatic control in the form of a time switch whereby removal of the member 5 may be effected automatically or periodically. The movement of the member 5 may be limited by stops.
Patent GB-209014-A (GB)
Title: Improved means for drying copra
IPC: F26B21/00
Filed: 1923-10-31
Abstract: 209,014. Elsworth, O. Oct. 31, 1923. Heating-fittings. - Apparatus for drying copra in the mass comprises a casing containing an airheating furnace a, the products from which pass through the tubes b to a flue c, and chambers for the copra. The floors s of the chambers are perforated and communicate with a duct p to which hot air is supplied by a fan n; the air is drawn through the opening f, over the tubes b, and through the passage m. The pressure of the air throughout the chambers is equalized by arranging the covers u above the tops of the chambers. Relief valves v are arranged on the covers.
Patent GB-1213170-A (GB)
Title: An automatically operated multiple barrel weapon for producing a hail of shots effect
Inventor: KOCH ANTON
IPC: F41F1/08
Filed: 1968-06-08
Abstract: 1,213,170. Weapons. CENTRO DE ESTUDIOS TECNICOS DE MATERIALES ESPECIALES. 8 June, 1968, No. 27378/68. Heading F3C. A weapon comprises a chamber block 4 having a plurality of chambers 3, a barrel 5 associated with each chamber, a common breech block 2 for feeding cartridges to the chambers 3 and for extracting spent cartridges after firing, a locking system 8 for locking the breech block 2 in the firing position and a loading device 1 operated by energy which is generated and stored independently of the weapon. In the construction disclosed the weapon is actuated by compressed air, the sequences of operation being controlled by a series of valves, and the breech block, after being unlocked by compressed air operation, is returned to its rearward position by spring loading (Fig, 2, not shown). Cartridges are fed to the weapon in belts (Fig. 3, not shown) and spent cartridges are returned to the belt. The extractors comprise strips fixed to the breech block (Fig. 4, not shown) or spring-loaded strips urged into an operative position by engagement with a rod passing through the breech block (Fig 6, not shown). The cartridges are fired electrically and the firing pins may be kept out of engagement with the cartridges until the breech block is locked by plungers slidable transversely of the firing pin receiving bores (Fig. 6, not shown).
Patent GB-747779-A (GB)
Title: A new antibiotic tetracycline and salts thereof
Filed: 1953-10-06
Abstract: A new antibiotic tetracycline is prepared by reacting chlortetracycline in organic solvent solution with hydrogen in the presence of a hydrogenation catalyst such as palladium in the form of the finely divided metal or as palladium on charcoal.  The quantity of catalyst is at least 5 per cent of the antibiotic. The temperature is room temperature up to 50 DEG  C. and the pressure is atmospheric up to 200 p.s.i., preferably 5 to 50 p.s.i. Solutions containing 1 to 10 per cent of chlortetracycline are employed.  1 molecule of hydrogen is absorbed and the reaction takes 1 to 12 hours.  It is preferred to use chlortetracycline base, but acid salts such as the hydrochloride may be used, in which case, a base such as calcium, strontium or barium carbonate is added to the reaction mixture. Specified solvents are methanol, ethanol, isopropanol, mixtures of methanol and dioxane, tetrahydrofurane, dimethoxyethane and 2-ethoxyethanol. Tetracycline may be precipitated from the filtered reaction solution by the addition of a non-polar solvent such as diethyl ether, pentane, benzene, toluene or chloroform.  Tetracycline base melts at 170-175 DEG  C.; <FORM:0747779/IV(a)/1> in methanol; molecular weight 444; ultra-violet absorption maxima occurs at 270 and 362 mu inmethanolic solution 0.01 N.HCl and 245, 265 and 382 in methanolic solution 0.01 N.NaOH.  Forms acid salts, e.g. phosphate, hydrobromide and nitrate by reacting the antibiotic base with the acid in aqueous or organic solution.  The antibiotic is employed in pharmaceutical and veterinary preparations (see Group VI).ALSO:A pharmaceutical or veterinary preparation comprises tetracycline or a salt thereof and a carrier or diluent therefor. Tetracycline is prepared by the catalytic hydrogenation of chlortetracycline (see Group IV(b)).
Patent GB-265274-A (GB)
Title: Rotary deep well drilling apparatus
IPC: E21B10/06
Filed: 1925-11-02
Abstract: 265,274. Reed, C. E. Nov. 2, 1925. Borehole apparatus.-A well-boring drill comprises a head 1 with a core-opening 2, projections 4, 4<a>, Fig. 2, round the head, and a central portion 5 surrounding the core opening. As shown in Figs. 1 and 2, the bit head 1 has on its lower face three unequally spaced inclined recesses 3 receiving rolling side cutters, and two recesses 17 receiving rolling bottom cutters 16, the recesses 3, 17 merging together and forming a channel for the flushing- fluid, which is directed through ports 3<x>. The side cutters are supported on stepped bearing pins 7 the larger ends of which have flattened sides; the ends of the pins 7 slide into grooves 10, 14 at the sides of the recesses 3 to contact with shoulders 10<a>, 14<a> in the grooves, the pins 7 being then locked by screws 15. The bottom cutters 16 are of different widths and are carried on pins 21 which are unsupported at their inner ends and have at their outer ends eccentric heads held by screws; washers 22 and bearing plates 18 sliding into grooves assist in supporting the pins 21, the plates 18 of the two recesses 17 being at different radial distances. The bit head is threaded to a reamer block 46 and contains a core tube 27 with a removable shoe 28 which is perforated to admit flushing water to the core; a pivoted core-trap 31 is provided!. In lateral recesses of the reamer block 46 are arranged cages 45 rigidly held by a tube 56 and an upper sleeve 47; the ends of the cages seat bearing members 49, 50 supporting reaming cutters 44, the upper bearing members being locked by a plug 52. Specifications 265,504 and 265,507 are referred to.
Patent GB-431467-A (GB)
Title: Improvements in and relating to diesel engine driven locomotives, and other apparatus
IPC: B61C9/08
Filed: 1933-10-06
Abstract: 431,467. Starting. ORENSTEIN & KOPPEL AKT.-GES., 23, Tempelhofer Ufer, Berlin. Oct. 6, 1933, Nos. 27595 and 27596. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 7, 1934]. [Class 7 (v)] [See also Group XXXI] An opposed-piston Diesel engine of a locomotive, which has driving wheels directly coupled to the two crank-shafts, is started by de-clutching one of the crank-shafts and causing individual pistons connected to this shaft to work on pistons of single-cylinder Diesel engines and act through the compressed gas produced on the corresponding pistons of the other crank-shaft. Opposed pistons 2, 3 act on crank-shafts 4, 5, respectively coupled, by connecting rods 17, 18 and a clutch 7, and directly, to the driving wheels. At starting the crank-shaft 4 is declutched, and a cylinder is selected at which a piston 3 is near the inner end of its stroke; air, compressed by a pump 20, which is always driven by the crank-shaft 4, enters by valve 24 and is further compressed ; a two-stroke Diesel cycle follows, but the exhaust valve 23 is not opened at the end of the expansion stroke and a second two-stroke Diesel cycle follows, owing to the super charge of air originally supplied, after which exhaust takes place. The piston 3 thus commences to move and the operation is repeated until the compression ratio is so low that firing cannot take place. The process is then repeated in another cylinder. When the locomotive is moving sufficiently fast, the crank-shaft 4 is slowed down and the two shafts 4, 5 are clutched together, the clutch being arranged to ensure correct relative positioning of the shafts. The engine then operates as an ordinary Diesel engine, valves 22, 23, 24 being held open. In a modification the cylinders are divided by a transverse partition containing a chamber into which air is compressed by two of the cylinders and from which air is delivered by valves as described above. A small amount of fuel may be burnt during the pumping operation to ensure that the air is sufficiently heated. The engine may work on the four-stroke cycle.
Patent GB-691291-A (GB)
Title: A process for the recovery of volatile flavours from plant products such as fruit juices
IPC: A23L27/10
Filed: 1946-09-14
Abstract: <PICT:0691291/III/1> Products in which the volatile flavours of plant extracts are concentrated at least 25-fold are obtained by vaporizing a part of the juice or the like to produce a vapour containing water vapour, the volatile flavours and non-condensible gases, removing water therefrom, and recovering the volatile flavours from the non - condensible gases.  With the apparatus of the drawing, fruit juice is delivered from a container 1 into a vaporizer 5, where 5-25 per cent is evaporated, and into a vapour-liquid separator 7; therefrom the unvaporized juice is led, after cooling in 13 if desired, into a container 17, and the vapour led into a fractionating column 20; in this column the volatile flavours are concentrated by removal of water vapour, which is condensed and so drained off at 34; the concentrated vapour and non-condensible gases pass through a condenser 22 into a collecting chamber 24, from which a fraction of the condensate is passed to a cooler 41, the remainder back to the column 20, and the non-condensible gases to a cooler 40; the fraction of condensate is led to the top, and the cooled gases to the bottom, of a scrubbing tower 43, the resulting essence being collected in a receiver 48 and the gases being vented at 51 to the atmosphere.
Patent GB-1242573-A (GB)
Title: Improvements in or relating to up and over door assemblies
Inventor: HARWOOD KENNETH PERCY
IPC: E05D15/44
Filed: 1968-06-12
Abstract: 1,242,573. Counterbalanced up-and-over door. WESTLAND ENGS. Ltd. 28 March, 1969 [12 June, 1968], No. 27843/68. Heading E2M. An up-and-over door 10 is counterbalanced by springs 12 housed in the radius arms 11 about which the door pivots. The springs may be tension or torsion springs and may be coupled to a motion reducing device such as pulleys 18.
Patent GB-1519154-A (GB)
Title: Apparatus for and method of constructing tunnels
IPC: E21D19/04
Filed: 1975-07-02
Abstract: 1519154 Tunnelling; tunnel lining GEWERKSCHAFT EISENHUTTE WESTFALIA and HOCHTIEF AG FUR HOCH UND TIEFBAUTEN 2 July 1975 [2 July 1974 27 Feb 1975] 27884/75 Headings E1F and E1S A method of constructing an underground tunnel comprises successively advancing elongate drive members 11 relative to a frame 10 which supports and guides the members, moving the frame forwardly when the members have been advanced, moving a rear shield 11' forwardly either with the frame or separately so that the rear end portions of the members 11 are supported by the rear shield at all times, and sealing and supporting the tunnel wall exposed behind the rear shield as the latter is moved forwardly. The rear shield may be in the form of a multi-part ring with arcuate sections individually adjustable relative to the frame by rams or a metal structure having a maximum length over the roof zone and whose lower ends terminate adjacent the horizontal plane containing the tunnel axis. The sealing and supporting may be effected by spraying fluid concrete from a nozzle rotating about the tunnel axis; or by forming a floor lining within the rear shield, e.g. by spraying, introducing fluid concrete, or placing arcuate elements 22', placing preformed metal lining elements 24 and wire mesh mats 24 into the rear shield so as to lie adjacent the roof and side walls, and spraying or introducing fluid concrete over the tunnel wall and lining elements when the rear shield is moved forwardly. Rotary cutters 16a are mounted on arms 16, 16' which are pivotable in a vertical and horizontal plane and movable linearly in planes parallel to and transverse to the tunnel axis. The arms also comprise endless conveyors for transferring the debris from the cutters to endless conveyors 18, 18'. A drifting cutting may be provided for cutting a channel in the floor of tunnel.
Patent GB-975438-A (GB)
Title: Pumping apparatus for liquified gases or vapours
Inventor: BEST KENNETH ROY
IPC: F04B43/06
Filed: 1962-07-20
Abstract: 975,438. Reciprocating pumps. DISTILLERS CO. Ltd. June 7, 1963 [July 20, 1962], No. 27924/62. Drawings to specification. Heading F1A. In a diaphragm pump for pumping liquefied gases at a temperature below 0‹C., the temperature of the pumping chamber is reduced by passage of pumped liquid from the outlet through a heat exchange system positioned in or adjacent to the pump.
Patent GB-1551742-A (GB)
Title: Circuits for defining pulse occurrence times in wave forms of predetermined frequency
IPC: G01P5/24
Filed: 1976-07-05
Abstract: In order to obtain an accurate value of the propagation time of the ultrasonic signal, the arrival of the high-frequency ultrasonic vibration train (S8) at the receiver must be established very accurately. Since the amplitude of the received signal (S8) rises starting from zero, the start of the same is not precisely defined. Consequently, a delayed instant at which the received vibration is at approximately the maximum amplitude is chosen for establishing the accurate arrival time. For this purpose, the ultrasonic signal is used to derive an electric square-wave signal (S12) which is synchronous with said ultrasonic signal, and said square-wave signal is compared in a phase detector (15) with a signal (S14) which is delayed with respect to the start of the vibration train (S8). The signal delivered by the phase detector alters the arrival delay time in such a way that the delay signal coincides precisely with a specific edge of a pulse of the square-wave signal (S12). As a result, the arrival time is accurately defined and the propagation time of the signal can be determined by means of known methods, e.g. counting the pulses of a clock pulse sequence. <IMAGE>
Patent GB-535664-A (GB)
Title: Improvements relating to the treatment of hydrocarbons with mineral acids
IPC: C07C2/62
Filed: 1939-10-16
Abstract: 535,664. Hydrocarbons; alcohols. STANDARD OIL DEVELOPMENT CO. Oct. 16, 1939, No. 27988. Convention date, Dec. 7, 1938. [Class 2 (iii)] In a process in which hydrocarbons are contacted with mineral acids, e.g. sulphuric or phosphoric acids, under conditions which cause degradation of the acid, and in which a requisite acid strength is maintained by replacing part of the acid in the system with fresh acid, the acid withdrawn is that portion of the acid which is degraded to the greatest extent. The process is particularly applicable to the reaction between an isoparaffin and an olefine in concentrated sulphuric acid. In the arrangement shown, a circulatory system comprising line 1, tanks 2, 4 and 6, and line 7 is maintained full of reaction mixture composed of acid and hydrocarbons. Tank 6 is a settling tank, in which acid settles at the bottom and is returned to the system through line 7. Hydrocarbons containing some dispersed acid are withdrawn from the top of tank 6, and are in part returned to the system through line 9 and in part led to a settling tank 13. Any desired portion of the spent acid settling in the tank 13 may be withdrawn through a line 16, while the remainder is returned to the system, together with fresh make-up acid from the line 17. The invention is also applicable to the polymerization of olefines.
Patent GB-778087-A (GB)
Title: Improvements in or relating to wire-drawing machine jaws
Inventor: THROP ARNOLD
IPC: B21C1/28
Filed: 1954-09-29
Abstract: 778,087. Drawing tongs and grippers. PRYOR & SON, Ltd., E., and MARSHALL RICHARDS MACHINE CO., Ltd. Sept. 28, 1955 [Sept. 29, 1954], No. 28041/54. Class 83 (4). Jaws 8, Fig. 1, which are slidable in oppositely inclined holes 7 for gripping the work 6 in a wire-drawing machine have teeth 13, Fig. 2, with protruding angles of 80-110 degrees and bisectors B which are parallel to the resultant forces on the teeth or generally at 50-70 degrees to the gripper surface. The dog 1 for drawing the end 5 of a wire 6 prior to its attachment to a drawing drum comprises gripper faces 12 mounted on the jaws 8 which are slidable in rectangular section holes 7 at an angle of 20 degrees to axis of the work. Springs 9 are held in recesses 10 of the jaws by plates 11 and press the jaws into engagement with the work. The gripper faces may have an arcuate or V-notch section and the teeth may be oblique or helical across the faces.