baber/WOPTO huggingface dataset:
Patent GB-306459-A (GB)
Title: Process for preventing theft and apparatus for carrying out this process
IPC: G08B13/08
Filed: 1929-02-20
Abstract: 306,459. Eggimann, A. Feb. 20, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Burglar and like alarms. - Comprises a portable burglar alarm, which on coming into contact with the door of a room starts a motor which actuates a sound warning device. A mechanical embodiment of the invention is shown in Figs. 1 and 2 in which a spiral spring 7 tensioned by a key 14 actuates the clockwork mechanism shown. The clockwork mechanism is set in motion by the action of a slidable twoposition starter 22 worked by the push knob 29. When the push knob comes into contact with an opening door the member 22 is shifted to the right, the opening 23 sliding with respect to the pin 24, the lug 28 frees the rod 19 of the hammer 18 whereby the anchor 20, under the action of the teeth of the wheel 17, quickly oscillates moving the hammer which, at each oscillation, strikes the inner well of the sound box 31. The apparatus is made sufficiently adherent to the ground by means of prongs 5. The alarm may. it is stated, be operated by an electric or pneumatic motor.
Patent GB-825907-A (GB)
Title: A novel dodecahydro-phenanthrene derivative and a process for the manufacture thereof
Filed: 1958-02-21
Abstract: The invention comprises 2 - acetyl - 7- oxo - 1,2,3,4,4a,4b,5,6,7,9,10,10a - dodecahydrophenanthrene of the formula <FORM:0825907/IV (b)/1> and the preparation thereof by reacting 1-vinyl-6-methoxy-3,4-dihydronaphthalene with methyl vinyl ketone, e.g. in an inert solvent such as a lower aliphatic alcohol, a fatty acid or a saturated hydrocarbon, isomerizing the resulting 2 - acetyl - 7 - methoxy - 1,2,3,9,10,10a - hexahydro-phenanthrene in acid solution, e.g. in an inert solvent using dry hydrogen chloride, ketalizing the 2-acetyl-7-methoxy-1,2,3,4,9,10-hexahydrophenanthrene so obtained with ethylene glycol, and either reducing the resulting 2 - (11 - ethylenedioxyethyl) - 7 - methoxy - 1,2,3,4,9,10 - hexahydrophenanthrene in liquid ammonia with lithium and an alcohol at low temperature and hydrolysing the so-formed 2 - (11 - ethylenedioxyethyl) - 7 - methoxy - 1,2,3,4,4a,5,8,9,10,10a - decahydrophenanthrene in acid solution or reducing the same in liquid ammonia with potassium and ammonium chloride at low temperature, hydrolysing the resulting 2 - (11 - ethylenedioxyethyl) - 7 - methoxy - 1,2,3,4,4a,9,10,10a - octahydrophenanthrene to form 2-acetyl-7-methoxy-1,2,3,4,4a,9,10,10a-octahydrophenanthrene, ketalizing this compound with ethylene-glycol to form the cyclic ketal thereof, reducing the resulting ketal in liquid ammonia with lithium and an alcohol at a low temperature and hydrolysing the so-formed 2 - (11 - ethylenedioxyethyl) - 7 - methoxy - 1,2,3,4,4a,5,8,9,10,10a - decahydrophenanthrene.  A detailed example is given.ALSO:A therapeutic composition, which may be administered orally or parenterally, contains as the active ingredient 2-acetyl-7-oxo-1,2,3,4, 4a,4b,5,6,7,9,10,10a - dodecahydrophenanthrene of the formula <FORM:0825907/VI/1> Thus the composition may be in the form of a tablet, syrup, elixir or injectable solution.
Patent GB-312256-A (GB)
Title: Improvements appertaining to joint forming devices in connection with boiler and boiler settingsused in the generating of steam and for like purposes
IPC: F23M5/02
Filed: 1928-02-23
Abstract: 312,256. Ryder, N. Feb. 23, 1928. Settings; flues, external.-A plate f extending across the top of the flue at the back of a Cornish or like boiler and attached to side plates a which are pressed against the end of the boiler by weights d to form a gas-tight joint, slides in a box or casing g supported upon the top of the flue. The top plate is formed with a flange f<1> on the edge within the casing and with a recess f<2> to receive packing on the other edge. The upper ends of the side plates have projections. engaging in openings in the ends of the top plate. The plates are supported upon rollers h within the casing g. The eccentrically mounted weights d press against flanges a<1> on the side plates.
Patent GB-776042-A (GB)
Title: Improvements in or relating to mechanism for the feeding of single sheets from a pack or pile
IPC: B65H1/18
Filed: 1953-07-03
Abstract: 776,042. Feeding sheets. HEYWOOD, B. C. July 3, 1953, No. 5705/56. Divided out of 776,041. Class 100(1) In mechanism for feeding sheets from a pile 9 a resilient scraper finger 41 also acts as a feeler for controlling the height of the pile. The finger 41 is secured to an arm 42 on which it is adjustable by the screw 44, and rests on the leading edge of the sheet 8. When the sheet is secured by suction separator 7 the finger scrapes off any second or third adhering sheet. An electric contact 40 can be set so that when a given number of sheets have been fed the platform supporting the pile 9 is raised. The sheets are fed by the separators 7 between feed rolls 14, 15 and the pile 9 is supported between guides 10 and 11, the guide 11 having a slot cut therein so that a blower 12 can direct air against the leading edges of the pile.
Patent GB-790669-A (GB)
Title: Improvements in or relating to centrifugal fans
IPC: F04D27/02
Filed: 1956-02-24
Abstract: 790,669. Centrifugal fans. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Feb. 24, 1956 [March 1, 1955], No. 5781/56. Class 110 (1). A centrifugal fan comprises a gas recirculation duct leading from the fan outlet to a secondary gas passage extending around and discharging into the axial inlet passage of the fan, spin vanes in the secondary passage near its discharge for spinning the recirculated gas in the direction of impeller rotation, and adjustable damper means in the recirculation passage, the secondary passage being formed by a pair of spaced-apart inwardly converging sheets, the innermost sheet forming the axial inlet passage, and the outermost sheet extending into the axial inlet passage. Under part-load conditions, gas is returned from the tangential outlet 18 of a centrifugal fan to the inlet 17 by way of a duct 23 and an annular passage 19. The passage 19 is formed between the curved inlet wall 16 and a curved wall 20 and contains vanes 22 which give the returned gas a spin in the direction of rotation of the impeller 9, at a speed greater than that of the rotation, whereby energy is recovered from the returned gas in assisting the rotation of the impeller. The return flow is controlled by a damper 24 actuated by an hydraulic jack in accordance with, say, steam pressure in the case where the fan is used as a forced draught fan in a steam plant.
Patent GB-536361-A (GB)
Title: Improvements in closures for containers
IPC: B65D39/02
Filed: 1940-04-01
Abstract: 536,361. Closures for containers. DAIRY SUPPLY CO., Ltd., and STOATE, N. P. April 1, 1940, No. 5795. [Class 125 (iii)] A closure for a carton or other container with a peripheral groove just below its rim consists of a pair of superposed discs 20, 21 pivotally connected by an eyelet or rivet 24 at a point displaced from the centre of the discs. This closure is placed in the mouth of the carton and the upper disc 20 is turned to bind the closure in the groove. The disc 20 may have a semi-circular cut 26 so that the part 27 can be bent upwards to form a finger plate and part of this may be cut away along the line 29 to facilitate the raising of the plate 27. The discs may be of such shape that, when displaced, the outline of the closure is a true circle, and the central part of the top disc near the pivot is shaped as a pointer to indicate whether the closure is sealing the container or not. In the modification shown in Fig. 12, the closure is used in conjunction with a metal cap 40 dished in the centre and having a depending rim 42; small pointed tabs 49 are driven down from the cap into the top disc so that the closure can be operated by rotation of the cap.
Patent GB-198415-A (GB)
Title: The manufacture of new vat dyestuffs
Filed: 1922-02-27
Abstract: Thioindigoid dyes dyeing cotton in fast brown shades from the hydrosulphite vat are prepared by condensing 2 : 1-naphthooxythiophene, or a nuclear substitution product thereof such as a halogen derivative, with isatin, or a substituted isatin such as a 5 : 7-dihalogen isatin, or a cyclic o-diketone containing two or more nuclei, for example acenaphthenequinone, 1 : 2-diketohydrindene, 2 : 3-diketo-(1)-thionaphthene; b -naphthisatin is however excluded. In an example, 5 : 7-dichlorisatin is used, the condensation being effected in the presence of glacial acetic acid.
Patent GB-368050-A (GB)
Title: Improvements in variable-speed belt gearing
IPC: F16H9/16
Filed: 1931-02-24
Abstract: 368,050. Expanding pulley gearing. BILLON, M.. 2, Square St-Armour, Besanþon, Doubs, and BONAME, G., 37, Rue Taitbout, Paris, both in France. Feb. 24, 1931, No. 5819. Convention date, March 28, 1930. [Class 80 (ii).] Belt pulley gearing comprises a multiple expanding pulley with alternate coned discs 10, Fig. 1, fast on a shaft 1, and paired discs or movable flanges 9 rigidly secured to keys 3 connected to a common control sleeve 4 sliding on that shaft. The keys 3 pass through apertures 5, Fig. 2, in the discs 10. An arrangement comprising driving and driven multiple pulleys with a plurality of belts may be operable by hand or automatically by torque-transmitting screws or cams exerting axial thrust on the connecting-means. A driving - shaft 1<1>, Fig. 10, which carries the fixed discs 10<1> exerts axial thrust through a transmitting cam 14<1> on a sleeve 3<1> which connects and carries the movable discs 9<1>. The power passes by two belts 6 to a double pulley 92, 102 in which a sliding connecting sleeve 3<2> drives a shaft 1<2> through a cam 14<2>. Levers 171, 172 connected to the two sliding sleeves respectively are connected by a cross-bar 19 having a cam surface 20 against which the lever 17<2> rests. Manual control may be superposed by a hand-lever 22. An arrangement is described with a single torque control cam acting against a spring. Connecting-means for the movable flanges may comprise a frame or grid supported about the shaft and passing freely through the fixed flanges.
Patent GB-793476-A (GB)
Title: Improvements in construction of filter presses especially those used for filtering beet sugar juice
IPC: B01D29/00
Filed: 1956-02-24
Abstract: 793,476. Filters. SZAREJKO, R. Feb. 24, 1956 [Feb. 24, 1955 ; Feb. 24, 1955], No. 5905/56. Class 46. [Also in Group VI] Liquid to be filtered, e.g. sugar beet juice, is admitted at 3, Fig. 1, to a closed cylindrical container 1 and passes through filter frames 11 covered on both sides with filter cloth and through individual pipes to a collecting pipe (not shown). When the space between the frames 11 is filled with mud the flow of juice is stopped and water for de-sweetening the mud is supplied through a pipe (not shown) adjacent the pipe 3. Water for removing the mud is supplied through a pipe 12 to a pipe 5a provided with holes or nozzles and capable of being  rotated and moved longitudinally from outside the container. The mud is washed along the container bottom to an outlet 6 by a stream of water from a pipe 7. The filter frames may be arranged in two banks 11, 11a, Fig. 4, in which, case two collecting pipes 9, 9a are provided and preferably two mud outlets and a plurality of wash water pipes 7. In either case water may be supplied to the filtrate collector for flushing the filter frames by reverse flow. The frames may be arranged longitudinally.
Patent GB-306554-A (GB)
Title: Improvements in or relating to diaphragm pressure gauges
IPC: G01L7/00
Filed: 1929-02-22
Abstract: 306,554. Rodanet, C. H. H., and Soc. Anon. Etablissements E. Jaeger. Feb. 24, 1928, [Convention date]. Elastic-diaphragm pressure gauges. - Comprises a construction in which the bellows is constituted by two discs 41, 41<a> of air-tight material such as goldbeater's skin the edges of which are clamped together by a metal ring 45 of U-shaped cross-section. The disc 41<a> is provided with a central hole through which passes a bored screw 42 entering the nozzle 26, the disc being clamped centrally between flanges 42<a>, 26<a>. The coupling nozzle is passed through the bottom 32 of the casing to which it is clamped by a nut 47. The nozzle is provided with a central triangular piece 49 or is otherwise divided into several orifices unaligned with the channel 48 so that a clearing rod inserted into the nozzle will not pass through the channel 48 and puncture the diaphragm 41. A spring 19, through a disc 60, bears on the diaphragm at one end, the other end being bifurcated and riveted to a ring 14 which is in turn secured to the bottom of the casing. The spring 19 actuates indicating mechanism.
Patent GB-557171-A (GB)
Title: Preparation of salts of amidines
Filed: 1942-05-04
Abstract: 557,171. Amidine salts. MAY & BAKER, Ltd., and BARBER, H. J. May 4, 1942, No. 5994. [Class 2 (iii)] Hydroxyalkanesulphonates of amidines are made by reaction of the corresponding amidine sulphite or bisulphite with an alkylene oxide. Salts of the compounds described in Specifications 507,565, 510,097 and 549,634 may be thus prepared. Ethylene oxide and propylene oxide are preferred, epichlorhydrin may also be used. An example is given of the preparation of the isethionate of 4:4<SP>1</SP>-diamidino-stilbene from ethylene oxide and the corresponding bisulphite which is prepared by treating a solution of the base with sulphur dioxide. Specification 549,639 also is referred to.
Patent GB-720779-A (GB)
Title: Improvements in heat pump water heater
IPC: F25B29/00
Filed: 1953-03-04
Abstract: 720,779. Refrigerating; heat pumps for heating liquids in bulk. PATTERSON & ASSOCIATES, Inc., V. C. March 4, 1953 [March 31, 1952], No. 6001/53. Classes 29 and 64 (3). A hot water storage tank 11 is heated by a heat pump comprising a compressor 12 having high and low pressure discharges 19, 20 the former of which supplies refrigerant in series through a desuperheater coil 13 in the upper part of the tank, a high temperature condenser 14 in the middle of the tank, a pressure reducing device 23 such as a throttle valve or a capillary tube and a low temperature condenser 15 and the latter of which supplies refrigerant through a pipe 22 to the low temperature condenser 15. From condenser 15, liquid refrigerant flows through pipe 16, expansion valve 17, evaporator 10 and suction pipe 18 back to the compressor. A thermal device 24 responsive to the tank temperature controls the compressor motor and the motor of a fan 25 circulating air over the evaporator. The compressor 12 is immersed in electric-insulating oil contained in a chamber 27 let into the upper part of the tank 11 to convey the compressor waste heat to the water in the tank.
Patent GB-216923-A (GB)
Title: Improvements in and relating to the manufacture of paper
IPC: D21H21/16
Filed: 1923-03-02
Abstract: In the manufacture of paper, the size is rendered into colloidal form in a high-speed mechanical disintegrator such as is described in Specification 155,836, [Class 59, Grinding, crushing. &c.], in the presence of a small quantity of a chlorinated hydrocarbon such as mono- or dichlorbenzene, or tetrachlorethane, and is added to the pulp in a high-speed heater or in a colloid mill.  A positively-charged substance, such as alum, or for cheap papers, ferric oxide, is added in small quantity.  The beating, sizing, bleaching, dyeing and addition of fillers may be performed either in one colloid mill or in a series of mills.  To accelerate the colloidalizing of the size, a small quantity of solvent, such as alkali, or ammonia, may be added.ALSO:In the manufacture of paper, the size is rendered into colloidal form in a high-speed mechanical disintegrator such as is described in Specification 155,836, [Class 1 (i), Chemical processes &c.], in the presence of a small quantity of a chlorinated hydrocarbon such as mono- or dichlorbenzene, or tetrachlorethane, and is added to the pulp in a high-speed beater or in a colloid mill.  A positively charged substance, such as alum, or for cheap papers, ferric oxide, is added in small quantity.  The beating, sizing, bleaching, dyeing and addition of fillers may be performed either in one colloid mill or in a series of mills.  To accelerate the colloidalizing of the size, a small quantity of solvent, such as alkali, or ammonia, may be added.
Patent GB-452658-A (GB)
Title: Improvements in or relating to the manufacture of esters of the aliphatic series
IPC: C07C69/54
Filed: 1935-02-26
Abstract: Esters of unsaturated monocarboxylic acids of the aliphatic series are manufactured by heating an ester of an aliphatic a -chloromono-carboxylic acid with ferric chloride, e.g. to 100 DEG  C. or above.  The reaction is advantageously carried out by heating under a reflux condenser, or preferably under a fractionating column adjusted so that the unsaturated ester passes over while the chloro-ester is returned, such a process being capable of being operated continuously.  The process is applicable to the treatment of mixtures of esters of a - and b -chlorocarboxylic acids, e.g. the mixture obtained by esterifying the product obtained by chlorinating isobutyric acid, whereby the b -chloro-ester is unchanged and a separation of the isomers is effected.  The recovered b -chloro-ester may be converted into the unsaturated ester by dehalogenation, e.g. by heating with alcoholic caustic alkali.  In examples: (1) methyl a -chloroisobutyrate is heated with anhydrous ferric chloride under a fractionating column, producing methyl methacrylate; (2) the same reaction is carried out continuously on a large scale under a column packed with the material known under the Registered Trade Mark "Carborundum"; (3) in the process of (2), a mixture a - and b -chloroesters is treated; (4) ethyl a -chloroisobutyrate is heated with ferric chloride under a fractionating column, the process being continuous, to yield ethyl methacrylate; (5) methyl a -chloropropionate is heated with anhydrous ferric chloride to produce methyl acrylate.
Patent GB-214964-A (GB)
Title: Improvements in stoves with hot water circulation
IPC: F24H1/40
Filed: 1924-03-11
Abstract: 214,964. Courtot, L. April 26, 1923, [Convention date]. Addition to 14005/14. Closed solid-fuel stoves; casings. - A waterheating stove as claimed in the parent Specification, comprising tubular panels disposed on the outer sides of upper and lower rectangular collectors, is characterized by there being at least two of the panels a<1>, a<3>, and a<2>, a<4> on each of the long sides of the collectors d. The collectors may also be formed in sections, that shown, for example, being in two halves divided at XX, and the panels may in this case be assembled to the halves of the collectors to form two horse-shoe shaped elements which are joined to form the complete stove. There may also be more than one panel on each of the remaining sides of the collectors, one form described having two panels on each short side and three on each long side.
Patent GB-468352-A (GB)
Title: Improvements relating to slate and like roofing
IPC: E04D1/34
Filed: 1937-03-03
Abstract: 468,352. Roofing. RYN, A. March 3, 1937, No. 6314. [Classes 20 (iv) and 87 (i)] A clip, which is adapted to be used in a roofing formed of hexagonal plates laid so that three successive courses of plates are in overlapping relation, is accommodated in a gap 4 disposed between adjacent plates 20, 30 in the intermediate course of plates, and comprises a circular base 1 placed as a spacer between the plates of the intermediate and lowest courses and a member for supporting the plate 40 of the uppermost course in spaced relation to the plates 20, 30 of 'the intermediate course. The clip comprises a wire 2 which is secured centrally to the plate 1 and is passed through an aperture in the plate 40 of the upper course and then bent downwardly on to the same. The spacing member for the upper plate 40 is in the form of a strip 3 which is threaded on the wire 2 and has downturned ends wherebv it is supported above the lowest plate 10. The spacing member for the plate 40 may, alternatively, be bent from the wire 2 and in the form of one loop s, Fig. 5, or two loops s<1>, s<2>, Fig. 6. The clip shown in Fig. 7 is formed wholly of wire, the circular part 2<c> constituting the base and the ends 2<d>, 2<e> serving as spacing and securing members. Instead of the gap between adjacent intermediate plates 20, 30 being shaped as shown in Fig. 1, it may be formed of V-shape or by serrating the adjacent edges of the plates. The plates may be in the form of slates.
Patent GB-164128-A (GB)
Title: Improvements in or relating to oxidation and colouration of ferrous surfaces
IPC: C25D5/48
Filed: 1920-03-02
Abstract: 164,128. Rondelli, T., Sestini, Q., and Sestron Colour Oxidising Co., Ltd. March 2, 1928. Addition to 106,774. Metallic oxides, obtaining; treating after electrolysis.-Iron and steel articles are coloured by anodic oxidation in a hot concentrated alkaline liquid. A caustic soda solution, having a boiling- point of 135-180‹ C., is suitable. Organic or inorganic oxidizing agents, such as nitrates and chlorates, may be present; 10-20 per cent sodium nitrate may, for instance, be added. The temperature may be 5-15‹ C. below the boiling-point of the electrolyte, and the articles are left in sufficiently long to attain the same temperature, current being passed either throughout the whole time of immersion or only after the articles are hot. For steel of ordinary hardness, the current density may be 10-15 amperes per sq. dcm. Violet or bronze colours may be obtained. After drying, the coloured articles may be dipped in olive oil or a mixture of linseed and mineral oil, heated to 150-180‹ C.
Patent GB-958463-A (GB)
Title: Driving mechanism for the recording support in sound recording equipment in which recording and playback are effected transversely with respect to the direction of advance of the support
IPC: G11B5/008
Filed: 1962-02-20
Abstract: 958,463. Electric motors. USINES GUSTAVE STAAR S.A. Feb. 20, 1962 [July 28, 1961], No. 6535/62. Heading H2A. [Also in Division G5] A motor for incrementally advancing a record tape on which are recorded transverse sound tracks (see Division G5) comprises a rotor 11 carrying permanently magnetized poles 13, 14 of alternating polarity and an equal number of integral non- magnetic cogged treads 22, the poles facing an equal number of stator poles 19, 20 formed by interlacing a pair of coronet-form members 17, 18, between which is a winding 15 which polarizes alternate poles oppositely. The winding is energized in alternate directions in accordance with movements of the recording head (Figs. 9, 10, not shown and Specification 958,464, Division G5) to advance the record tape in onepole increments. To provide for drive in a selected preferred direction, a spring-biased roller 15 (Fig. 3) engaging between the treads 22, ensures that the rotor comes to rest at an angle α offset from the neutral position in a direction determined by a solenoid 37, which is energized to provide a reverse drive. Rapidly-succeeding steps, for back- and forward-spacing of the record tape, may be provided by closing switches 53, 54 (Fig. 11), whereupon a self - sustaining system 10, 49, 43 operates the motor independently of the recording-head movements. The extent of this movement may be predetermined by a thick-tooth mechanism, drivable from the motor and opening stop contacts (Figs. 12, 13, not shown).
Patent GB-1105159-A (GB)
Title: Improvements in gas burners
Inventor: BINKS JOHN ALFRED
IPC: F23D14/04
Filed: 1966-02-15
Abstract: 1,105,159. Igniting burners. BROWN BROS (AIRCRAFT) Ltd. 15 Feb., 1967 [15 Feb., 1966], No. 6606/66. Heading F4F. A gas burner with three parallel bars 10 each having an individual injection nozzle 14 fed from a main pipe 16 with a valve 17 has a pilot jet 18 and a cross lighting bar 19 which has a side port 20 facing jet 18 and further ports 21 and is supplied with gas through an injector nozzle 22 connected by a pipe 23 to the pipe 16 between the valve 17 and nozzles 14.