baber/WOPTO huggingface dataset:
Patent GB-1509304-A (GB)
Title: 7,8-dihydroxy-cyclopentano(f)-1,2,3,4-tetrahydroisoquinoline derivatives
IPC: C07C45/51
Filed: 1975-03-18
Abstract: 1509304 Cyclopentano - tetrahydroisoquinolines MARION LABORATORIES 18 March 1975 [28 March 1974] 113311/75 Heading C2C Novel compounds of the Formula I wherein R 1  and R 2  are hydroxy, alkoxy, alkanoyloxy or aralkanoyloxy, R 3  is hydrogen or alkyl and R 4  is alkyl, aralkyl, benzhydrylalkyl, alkanoyl, aralkanoyl, or benzhydrylalkanoyl, and acid addition and quaternary ammonium salts thereof, wherein alkyl, alkoxy, alkanoyl (mono and divalent) have 1 to 8 carbon atoms, aryl is phenyl optionally with 1 to 3 groups selected from alkoxy, alkyl, halo, hydroxy and amino, and benzhydryl is that group in which both rings are optionally substituted as for aryl above, may be prepared by reacting a compound of the Formula II wherein R 5  and R 6  are alkoxy, R 3  is as above and R 4  is hydrogen with (1) an appropriate acyl halide to produce a compound II in which R 4  is an acyl group specified above other than HCO, optionally followed by reduction of the amide to a tertiary amine, (2) formaldehyde and formic acid to produce II in which R 4  is methyl or (3) an aldehyde R 7 CHO wherein R 7  is alkyl, aryl, arylalkyl, benzhydryl or benzhydrylalkyl and reducing the Schiff's base so formed optionally followed by cleavage of the ether groups R 5  and R 6  and esterification with an appropriate acid. The starting materials II in which R 4  is hydrogen are produced by reacting a 4,5-dialkoxy-7-indanaldehyde with R 3 CH 2 NO 2  to form a 4,5-dialkoxy-7-nitrovinylindane, reducing the nitro group to form a 4,5-dialkoyx-7- (2-amino alkyl)-indane, which with formaldehyde produces the corresponding Schiff's base which is cyclized to the required starting material. The starting aldehyde is produced as described in Specification 1,509,302. #,# - Diphenylpropionyl chlroide and 3,4- dimethoxybenzoylchloride are prepared by reacting the acid with thionyl chloride. Pharmaceutical compositions of the compounds I with the usual excipients show anti-hypertensive activity when administered orally or parenterally.
Patent GB-371596-A (GB)
Title: An improved process for making electrical time and instantaneous fuses of all kinds
IPC: C06C15/00
Filed: 1931-04-16
Abstract: 371,596. Blasting fuzes : explosives. ESCHBACH, W., Troisdorf, Cologne, Germany. April 16, 1931, No. 11335. Convention date, March 13. [Classes 9 (i) and 9 (ii).] In an electric instantaneous or time fuze, the time fuze composition or the electrically ignited pellet or both are such as to give off no gas or only very little gas on combustion. The fuze composition may be a mixture of equal parts of metallic antimony and potassium permanganate ; and the pellet composition may be a mixture of equal parts of calcium peroxide and a pyrophorous alloy, for example cermagnesium. Reference has been directed by the Comptroller to Specifications 210,518, 304,144, and 310,364, [all in Class 9 (i), Ammunition &c.].
Patent GB-465384-A (GB)
Title: Improvements in or relating to reversible internal combustion engines
IPC: F01L13/00
Filed: 1936-04-21
Abstract: 465,384. Reversing; valve gear. AKTIEBOLAGET ATLAS DIESEL. April 21, 1936, No. 11370. Convention date, April 27, 1935. [Classes 7 (v) and 7 (vi)] To enable an engine to be rapidly reversed by means of compressed air, one or more valves 50 for discharging compressed air from the engine cylinders at the end of the compression stroke are pneumatically controlled by an engine-driven distributer 32 for compressed air. As shown, the distributer 32 is a rotary valve driven from a rotary enginedriven distributer 9, supplying compressed air through pipes 10 to starting-air valves 1 on the engine cylinders. The supply of compressed air to the distributer 9 and the valves 1 is controlled by a hand-actuated main air valve 4. The distributer 9 is moved axially for reversing by a control lever 13 and .linkage 16, and a lost-motion connection 33, 34 between the valves 9, 32 allows relative angular adjustment of the valve 32 on reversal. Each of the discharge valves 50, Fig. 3, comprises a valve member 52, the stem 57 of which carries a piston 59 engaged by a spring 58 tending to close the valve, which is opened by compressed air supplied from the valve 32 through a pipe 49 to the upper side of the piston 59. The spring 58 allows the valve 52 to open on excess pressure in the cylinder during normal running. Specification 289,304, [Class 7 (v)], is referred to.
Patent GB-113780-A (GB)
IPC: B07B4/02
Abstract: 113,780. Laudien, R. Feb. 26, 1917, [Convention date]. Pneumatic separating.-In an apparatus for removing dust from ores, coal, &c., comprising a throwing disk b rotating in an inner chamber c, which is enclosed in a casing e, and means within the apparatus for setting up a current of air in a closed circuit, the areas of the passages at X, Y and of the fan d at Z are made substantially equal to each other and not less than a quarter of the area of the casing. The material is fed at a, the dust escapes at f, and the dust-free material at g.
Patent GB-1351795-A (GB)
Title: Process for preparing aluminium support base for lithographic  printing plate
IPC: B41N3/03
Filed: 1971-04-26
Abstract: 1351795 Anodizing aluminium POLYCHROME CORP 26 April 1971 [3 Aug 1970] 11413/71 Addition to 1235863 Heading C7B A lithographic printing plate comprising an Al supporting base and a light-sensitive coating thereon is made by graining a surface of an Al sheet with a wet mass of hard abrasive particles, anodizing the grained surface to form a hard, dark, steel-grey, lustreless surface, and treating the anodized surface with an undercoating bonding substance prior to coating a lightsensitive composition. The abrasive may be silicate (of Al, K, Na), oxide (of Al, Si) or sulphate (of Mg), e.g. pumice or quartz. Graining may be by machine or hand rubbing using moistened abrasive particles or a slurry or suspension thereof. The Al sheet may be initially degreased and cleaned in NaOH solution. Anodizing may be effected in 8-22% H 2 SO 4  solution at 10-20 volts and C.D. of 10-20 A.S.F. The anodized layer may be sealed.. The undercoating substance may be a solution of alkali metal silicate, silicic acid, alkali metal (e.g. K 2 ) ZrF 6  or H 2 ZrF 6 . The light-sensitive composition may be a condensation product of paraformaldehyde and p-diazo-diphenylamine with tetrahydroxybenzophenone.
Patent GB-1184351-A (GB)
Title: Magnetically focused electron discharge tube
IPC: H01J19/34
Filed: 1967-03-10
Abstract: 1,184,351. Electron beam apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 10 March, 1967 [15 March, 1966], No. 11415/67. Heading H1D. An electron discharge tube employing magnetic focusing of the electron stream, e.g. a high power amplifier tube, comprises an emitter 1 with a flat emissive surface having a shape, e.g. Figs. 2a-2e (not shown), such that its periphery is longer than that of a circle enclosing the same area, a cylindrical collector 3 spaced from and surrounding the emitter 1, a gate electrode 2 of sheet material extending between the collector 3 and the plane of the emitter surface, from which it is spaced a distance g, so that the thickness of the sheet material is parallel to this plane and the normal projection on this plane of the inner surface of the edge of the gate adjacent the emitter is a constant distance f from the emitter surface, where f is larger than one-tenth of the minimum width of the emissive surface and equal to or larger than g. As shown in Fig. 6, two indirectly heated emitters 1 arranged back-to-back, each with its own gate electrode 7, 7<SP>1</SP>, may be disposed within the same cylindrical collector 3 which is water-cooled through channels 4 and permanent magnets 8 arranged outside the collector constrain the electrons from impinging on the gates. The combination of magnetic field and cylindrical collector provides conditions whereby electrons strike the collector surface at an angle less than 90 degrees and preferably less than 85 degrees. The emitter shape and hence the gate shape may be rectangular or elliptical, Fig. 3 (not shown), in which event the gate height h perpendicular to the emitter surface and gate width w parallel to this surface preferably satisfy the relation: 0À5 < h/w <2. The gate electrode may act as a modulator for the electron stream.
Patent GB-613466-A (GB)
Title: Improvements in and relating to electrical delay circuits
IPC: H03K5/14
Filed: 1946-04-13
Abstract: 613,466. Pulse delaying circuits. SHAYLER, J. S., and BUCKINGHAM, J. April 13, 1946, No. 71435. [Class 40 (vi)] In an electrical delay circuit, a pulse applied to one end of a delay line is reflected at the other end, the output appearing across an impedance in series with a rectifier connected to one end of the line. In Fig. 1, the load R is much greater than the characteristic impedance of the line which is matched to the impedance of valve V2 in series with the impedance Z. A positive pulse at the input of valve V1 appears as a negative pulse at its anode, travels down the delay line DL, is reflected from the short-circuited end L as a pulse of positive polarity and causes the diode V2 to conduct. The output pulse across impedance Z is thus delayed with respect to the input pulse by twice the delay time of the line DL. In Fig. 2, the negative pulse which travels from D to L is reflected at L as a pulse of positive polarity, by the effective short-circuit of diode V2, is reflected at D by the effective open circuit of valve V1, travels back as a pulse of positive polarity and is absorbed by diode V3. The output pulse produced across Z is delayed with respect to the input pulse by three times the delay of the line DL. In a modification, Fig. 3 (not shown), a negative pulse is applied to the input of a circuit similar to that of Fig. 1, but with the distant end of the line open circuited. A positive pulse produced at the anode of the valve appears across the output impedance Z followed by a pulse reflected from the distant end of the line delay with respect to the first pulse by twice the delay of the line. This circuit may be used as a coding circuit in a communication system by feeding the input with a series of pulses spaced by twice the delay of the line, the output then comprising two series of pulses, each series phase displaced with respect to the other by twice the delay of the line. The resultant is thus a series of pulses of twice the normal amplitude (Fig. 6, not shown). The output pulse train is applied to a biassedoff valve stage so that pulses of normal amplitude are ineffective and only when the input pulses are spaced apart by twice the delay of the line will signals appear in the output of the biassed-off stage. In a modification, Fig. 4 (not shown), the anode of a diode is connected to the input end of the delay line and the cathode of a diode to the output end, pulses delayed with respect to the input by twice the delay of the line and by the delay of the line respectively being taken from impedances in the cathode leads of the two diodes. In a further modification, Fig. 5 (not shown), the circuit is identical with that of Fig. 2, but impedances in the cathode leads of both diodes enables pulses delayed by the delay of the line and three times the delay of the line to be produced.
Patent GB-298871-A (GB)
Title: Improvements in and relating to windscreen wipers used in conjunction with internal combustion engines
IPC: B60S1/06
Filed: 1928-04-18
Abstract: 298,871. Young, F. J. April 18, 1928. Windows and the like, cleaning. - A device for controlling a suction - onerated windscreen wiper and for admitting extra air to an internalcombustion engine, comprises a casing 1 provided with an air inlet port 12 and with bores 8, 10 connected respectively to the induction pipe and the operating cylinder of the windscreen wiper, the junction of the bores 8, 10 being in proximity to a point of construction in the air passage which is controlled by a needle valve 14. Restriction of the opening 17 by the valve 14 ensures a reduction of pressure in the bore 10 and the functioning of the windocreen wiper.
Patent GB-1335458-A (GB)
Title: Method and apparatus for continuously winding t'pe onto elongated body
IPC: B65H81/08
Filed: 1971-04-26
Abstract: 1335458 Covering cores by winding FURUKAWA DENKI KOGYO KK 26 April 1971 [25 April 1970] 11472/71 Heading B8G The elongate core A that is to be wrapped with tape B moves axially through an inner disc 30 that is concentric with an outer disc 32. The tape supply holder 40 is rotatable with the discs 30, 32 about the core A to wind the tape B about the core. The discs 30, 32 have rollers 31, 33 around their periphery and when the tape pad C is ready to be replaced by a new one the rotation of the disc 32 is slowed down to cause an accumulation of tape B around the outer and inner rollers 33, 31 as shown in Fig. 3. The rotation of the tape holder 40 about the body A is then stopped and, whilst the disc 32 is speeded up to allow the accumulated tape to be wound on to the core A without further tape being withdrawn from the pad C, the exhausted pad C is replaced with a fresh one and the tape ends are joined together. The outer disc 32 and tape holder 40 may then be speeded up until the path of the tape B is a straight line between guide rollers 44 on the pad holder 40 and guide and tension rollers 45 rotating with the inner disc 30. The speed of the pad holder 40 and the outer disc 32 are then reduced to the speed of the inner disc 30. In a modified process the outer disc 32 is speeded up to provide the aforesaid accumulation of tape.
Patent GB-1131618-A (GB)
Title: Fractional crystallization
Inventor: COTTLE JOHN ERNEST
IPC: C12H6/04
Filed: 1966-03-16
Abstract: 1,131,618. Fractionating by freezing. PHILLIPS PETROLEUM CO. 16 March, 1966, No. 11541/66. Heading F4H. Slurry from the freezing chamber 2 of a fractional crystallization apparatus is in part passed to a purification zone 6 and in part passed through a duct 7 to a residence chamber 4 for recirculation to the freezing chamber. A feed pre-cooler may be included, Fig. 2 (not shown). The residence chamber may have its axis at right angles to that of the freezing chamber, Fig. 3 (not shown). The residence chamber may include a baffle (201), Fig. 4 (not shown), to lengthen the slurry path through it.
Patent GB-840821-A (GB)
Title: Improvements relating to the production of polyhydric alcohols
Filed: 1957-04-09
Abstract: Polyhydric alcohols are produced by catalytic hydrogenation of hexitols, e.g. sorbitol, at a temperature above 180 DEG  C. and a pressure above 10 atm.; for the preferential production of 1.3-propylene glycol the process is carried out at 190-220 DEG  C. and 140-160 atm. using as catalyst copper chromite activated with silver; nickel, copper and cobalt deposited on a carrier or nickel and copper deposited on a carrier; for the preferential production of 1.2-propylene glycol the process is carried out at 180-210 DEG  C. and 20-30 atm. using as catalyst copper and nickel on a carrier; and for the preferential production of glycerol and ethylene glycol the process is carried out at 200-220 DEG  C. and 140-160 atm. using as catalyst cobalt and nickel on a carrier.  The hydrogenation is preferably carried out in aqueous solution which has been made approximately neutral.  The reaction products may be recovered by fractional distillation.
Patent GB-840674-A (GB)
Title: Improvements in or relating to electric cut-outs
IPC: H02G3/14
Filed: 1957-04-09
Abstract: 840,674. Switch covers. BUSCH-JAEGER. DURENER METALLWERKE A.G. April 9, 1957 [April 25, 1956], No. 11576/57. Class 38 (5). The cover 4 of a switch is clamped to the base 1 by inserting resilient pins 5, 6, into grooves. 7, 8, and engaging the underside of terminals 2, 3, projecting through holes in the cover.
Patent GB-270699-A (GB)
Title: Improvements in variable-speed and reversing gearing
IPC: F16H61/662
Filed: 1927-04-30
Abstract: 270,699. Fontaine, R. F. M. May 4, 1926, [Convention date]. Variable-speed and reversing gearing. - A spur epicyclic train A, C, B, Fig. 1, is controlled by driving the annulus B through a worm D and through a disc and roller variable gear 10, 12, the whole being controlled by a governor F upon the driving-shaft 1. The planet gear C is supported on a spider 3 fast on the driving shaft 1. The sun gear A is fast on an intermediate driven shaft 2 which drives a shaft 31, which may be the cardan shaft of a vehicle, through a countershaft reversing - gear. The worms D are supported in a iixed frame and are driven through skew and bevel gearing 16, 14 from the shaft 13 of the friction roller 12. The disc 10 is driven through a pair 9, 8 from the shaft 1. The speed at which the shaft 2 is driven depends on the position of the roller 12, which is moved through a screw 29 by the governor F. The governor shifts axially a pair of friction bevels 26, 27 so that a bevel 28 carried by the screw 29 is turned in one direction or the other. When a clutch-faced gear 35 is slid to the left, the shaft 31 is driven directly. When the gear 35 is slid to the right into mesh with an idler 36, the shaft 31 is driven reversely through train 35 - - 39. A free-wheel clutch 40 prevents the road-wheels from driving back to the engine. The governor within drum F is constructed as shown in Fig. 3. Levers 20 pivoted to the rotary drum at 21 carry each a weight 19 and are pulled inwards by springs 22. The outer end of each lever 20 is connected by a link 24 to a nut 23 the turning of which effects the axial shift of the bevels 26, 27.
Patent GB-436800-A (GB)
Title: Improved construction of garment hanger
IPC: A47G25/54
Filed: 1934-04-18
Abstract: 436,800. Garment hangers and protectors. HAFFENDEN, J. WILSON-, 12, Well Street, Jewin Street, London. April 18, 1934, No. 11673. [Class 52 (v)] [See also Group XVII] A garment hanger and protector consists of a strip 4, a hook 3 or other suspension device, a hanger 2, and a bag 5 adapted to be supported by the strip 4. The hook &c. 3 passes through the aperture 6, and the lower edge of the bag is closed by clips 7. In modifications, the body of the bag is transparent, and the clips 7 are fitted on a vertical edge ; the strip 4 may form part of the bag 5 ; a number of hangers 2 may be hung upon an 8-shaped loop at the lower end of the hook 3, which loop hangs in an inverted U-shaped guard.
Patent GB-300621-A (GB)
IPC: F25B31/00
Filed: 1928-04-20
Abstract: 300,621. Wayne Co., (Assignees of Myers, L. V.). Nov. 17, 1927, [Convention date]. Refrigerating, compression machines for.-Means are provided to prevent collection of lubricant with the refrigerant, e.g. sulphur dioxide, in the liquid refrigerant receiver 1. The receiver is fitted with an inlet pipe extending up into a depending outlet pipe 9, so that the bubbles of lubricant flow with the bulk of refrigerant through the valve 10 to the pipe 14 leading to the evaporator. The valve 10 with tube 9 and inlet branch 6 with tube 8 screws into bosses 12, 3 respectively welded to the receiver. In a modification the tube conveying refrigerant and lubricant passes through the receiver and is provided below the normal liquid level with downwardly directed holes through which mainly refrigerant passes into the receiver. Air leaking into the system may be released through a valve on the receiver.' The Specification as open to inspection under Sect. 91 (3) (a) comprises also a screw-down air release valve in the upper part of the receiver. This subject-matter does not appear in the Specification as accepted.
Patent GB-548932-A (GB)
Title: Telephone systems
IPC: H01J17/30
Filed: 1941-09-12
Abstract: 548,932. Automatic exchange systems STANDARD TELEPHONES & CABLES, Ltd. Sept. 12, 1941, No. 11701. Convention date, Sept. 20, 1940. [Class 40 (iv)] In a system for identifying a calling line, each meter wire is connected to one of 100 control electrodes of a discharge tube such as 68XX individual to a group of lines having the same thousands and hundreds digits and to one of 100 control electrodes of a discharge tube such as XX47 individual to a group of lines having the same tens and units digits. The cathodes of the ten tubes associated with a particular thousands digit are connected respectively to the ten control electrodes of one of a group of " thousands auxiliary tubes, and the main tubes associated with a particular hundreds digit are similarly connected to a particular "hundreds" auxiliary tube. The tens/units main tubes are similarly associated with ten tens and ten units auxiliary tubes. The main anodes are fed with A.C. superposed on D.C. so that momentary breakdowns due to transients are not effective. When an identification is to be made, an alternating current marking is applied to the meter wire and the cathodes of the auxiliary tubes are connected up via register relays by a relay H (winding not shown). These relays lock under control of a relay Z (winding not shown) and apply marking potentials, in combinations in succession to five wires to the printer. Specifications 484,568 and 484,647 are referred to.
Patent GB-313699-A (GB)
Title: Golf clubs
IPC: A63B69/36
Filed: 1928-04-21
Abstract: 313,699. Swan, D. April 21, 1928. Golf clubs.-In a golf club having a flange extending at an angle to the blade, the flange D is formed integral with the blade C and projects from the top thereof, so as to overlie the ball E and indicate the direction the ball will take after being struck. The flange may be coloured to serve as an indicator or may be of the wedge shape shown.
Patent GB-1037992-A (GB)
Title: Improvements in digital data storage devices
Inventor: TAUB DANIEL MATTHEW
IPC: G11C17/02
Filed: 1962-03-28
Abstract: 1,037,992. Read-only stores. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 26, 1963 [March 28, 1962], No. 11825/62. Heading G4A. A read-only store comprises rows and columns of sense and drive lines respectively and overlaying them a conductive sheet which to store a binary one is punched at intersections of the lines in a pattern which links the lines inductively and to store a zero a hole covering the intersection is punched. It is preferred that the conductive sheet is initially punched to store ones at all locations and that the store is of such a size that a hand card punch can be used to punch zeroes. In Fig. 3 a rectangular storage location is defined by the intersections of the drive lines 1 (a central conductor and two earthed return conductors) and guard conductors 3. The sense line 2 crosses the location to define six sub-rectangles. To store a binary one three of these are punched out as shown so that change of current in the drive lines induces a circulating current in the remaining subrectangles which in turn induce a current pulse in the sense lines. To store a binary zero all six sub-rectangles are punched out. Several other patterns for varying configurations of drive and sense lines are described in the Specification.
Patent GB-1466945-A (GB)
Title: Stopcock
IPC: F16K17/168
Filed: 1974-03-18
Abstract: 1466945 Valves E CAVAGNA A CAVAGNA C CAVAGNA S CAVAGNA and G B CAVAGNA [trading as OMECA OFFICINA MECCANICA CAVAGNA DI CAVAGNA ENRICO & C Snc] 18 March 1974 [16 March 1973] 11855/74 Heading F2V A stopcock for use with a liquefied petroleum gas cylinder comprises a manually operable valve closure member 5 and a valve 9 normally held in the open position by a spring, the valve 9 being moved into a closed position in contact with a seal ring 10 if there is any leakage past the closure member 5 after a regulator has been disconnected from a duct 4.