baber/WOPTO huggingface dataset:
Patent GB-361493-A (GB)
Filed: 1930-09-25
Abstract: The p-nitrobenzoic acid esters of 3-dimethylamino-2-dimethylpropanol-1, 3-diethylamino-2-dimethylpropanol-1 and 3-dimethylamino-2-isopropylpropanol-1 are reduced to the corresponding p-aminobenzoic acid esters by treatment with hydrogen under pressure in the presence of palladium chloride.  Reference has been directed by the Comptroller to Specification 17162/05, [Class 2, Acids and salts, Organic &c.].ALSO:Alkamine esters are prepared by esterifying amino-alcohols of the formula-- <FORM:0361493/IV/1> (in which R represents alkyl and R<1> signifies alkyl or hydrogen) with benzoic acid or its nitro derivatives, followed if desired by reduction of the nitro group.  The products possess therapeutic properties.  The examples describe the preparation of esters from (1) benzoyl chloride and 3-dimethylamino-2-dimethyl-propanol-1; (2) p-nitrobenzoyl chloride and 3 - dimethylamino-2-dimethylpropanol-1, followed by catalytic reduction under pressure in the presence of palladium chloride; (3) benzoyl chloride and 3-diethylamino-2-dimethylpropanol-1; (4) p-nitrobenzoyl chloride and 3-diethylamino-2-dimethyl-propanol-1, followed by reduction with hydrogen under pressure using palladium chloride as catalyst; (5) p-nitrobenzoyl chloride and 3-dimethylamino-2-isopropyl-propanol-1, with subsequent catalytic reduction to the amino compound; (6) benzoic acid and 3-dimethylamino-2-dimethyl-propanol-1. Amino-alcohols.--The amino-alcohols employed in the foregoing process are prepared by condensing aldehydes of the formula <FORM:0361493/IV/2> with formaldehyde and secondary amines <FORM:0361493/IV/3> , and reducing the resulting aldehyde-amines.  An example is given of the preparation of 3-diethylamino-2-dimethyl-propanol-1 by interaction of isobutylaldehyde, diethylamine and paraformaldehyde and subsequent reduction of the 3-diethylamino-2-dimethyl-propionaldehyde with the aid of sodium amalgam.  Specification 17162/05 is referred to. Reference has been directed by the Comptroller to Specification 17162/05, [Class 2, Acids and salts, Organic &c.].
Patent GB-1360566-A (GB)
Title: Data processing systems
IPC: G06F11/00
Filed: 1972-06-20
Abstract: 1360566 Data processing systems INTERNATIONAL BUSINESS MACHINES CORP 20 June 1972 [28 June 1971] 28810/72 Heading G4A On request from a hardware or software source, the identity ID of an event and the time interval #T during which the event is expected to occur are entered in a register 10, the actual time from a clock 23 is added to #T at 17, the resulting future time is stored in a write register 16 together with the event ID, the contents of register 16 are transferred to a vacant slot in a store 19, and a comparison is made at 22 between the stored future times and the actual time from clock 23 to indicate when an event is overdue. The store 19 is described as being an array of FET's rows of which are accessed successively by a counter so as to act as a recirculating store. Clock 23 is advanced once for each cycle of the store 19. In addition to #T and ID the registers 10, 16 and store 19 include control bits having the following significance when on: H = hardware as opposed to software originating source; S = cancel as opposed to store request; B = register full; U = slot available; M = overdue event not yet acknowledged. When an overdue event is recognized at 22, the event ID and bit H are transferred to a register 25 for subsequent transfer to the originating source as indicated by the H bit. If register 25 is busy however, the M bit is set in the appropriate row of store 19. If an event occurs within the expected interval #T, the originating source enters a cancellation request (S = 1) in register 10. Successive comparisons are then made between the event ID of the request transferred to register 16 and the stored event ID 's, and when the corresponding slot in store 19 is found the U bit is turned on to indicate that the stored event data is no longer valid and the slot is available for storing another event. An associative store may be used in place of the recirculating store 19.
Patent GB-449433-A (GB)
Title: Protecting means for ionic valves
IPC: H02H7/127
Filed: 1935-10-18
Abstract: 449,433. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Vasteras, Sweden. Oct. 18, 1935, No. 28812. Convention date, Oct. 22, 1934. [Class 38 (ii)] [See also Group XL] In gas- or vapour-filled valves acting in rectifying, inverting or frequency converting arrangements wherein on overload or back-arcing a blocking voltage is impressed on the main control grids to cause extinguishing on all the anodes, an auxiliary valve is arranged within the main converter vessel and comprises an auxiliary grid 8 and anode 9 which act with the main cathode 1. The main grids 3, Fig. 1, are connected to a bus-bar 6 over glow lamps 5 and have connections 4 for independent control of the grids. The auxiliary grid is connected to a resistance 11 bridging the D.C. side of the converter, and is normally maintained at a negative potential, to prevent auxiliary discharge. A relay 13, energized through rectifiers 15 from auxiliary coils 14 on the main primary windings, maintains a circuit closed through the anode 9 and a battery 7. On failure of current on the D.C. side a condenser 12 raises the potential of the grid 8 and thereby enables the battery 7 to apply a blocking bias to the main grids 3. A condenser 16 with a leaky rectifier 17 maintains the relay 13 closed for sufficient time for the blocking voltage to be applied, when current fails in the coils 14. If the auxiliary arc can be established with the grid 8 at zero potential the condenser 12 can be dispensed with. In a modification, the auxiliary grid 8, Fig. 2, receives its releasing bias from the secondaries of the A.C. side of the converter, through condensers 25 connected to a bus-bar 24; this grid is normally maintained negative from a battery 26 connected to the cathode. The anode 9 is biassed from transformer 21 with rectifier 22, condenser 20 and smoothing resistance 23 ; the main grids 3 are connected to the negative side of the condenser 20. The positive biassing on the grid 8 is maintained by a condenser 29 charged, when current flows through the auxiliary gap, by a transformer 27 ; the primary of this transformer may replace the resistance 28. In a further arrangement using a three phase auxiliary discharge valve, coils 14, Fig. 3, on the main primaries, act on a load resistance 32 in series with a glow lamp 33 the cathode 1 and grids 8 ; the voltage on the grids 8 is raised only on excess voltage through the main primaries, the condenser 34 maintaining the bias when the current falls in the supply line. In place of the external means for raising the potential of the auxiliary grid the rise in ionization within the converter due to heavy discharge may effect the change ; the auxiliary valve should then be arranged symmetrically with respect to the main anodes. The auxiliary anode may be placed within a main anode sleeve to keep it at high temperature, but should be screened from the main anode.
Patent GB-617366-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: B60L7/12
Filed: 1946-09-27
Abstract: 617,366. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 27, 1946, No. 28875. Convention date, March 22, 1944. [Class 38 (iii)] An electric motor control system comprises a direct-current motor having an armature and a field exciting winding, a line switch for connecting the motor to a supply source, a reversing switch, operable only when the line switch is open, for reversing the motor armature connections without reversing the field connections, means independent of the supply for exciting the field winding while the line switch is open, and a relay arranged so as to prevent the line switch being closed while the motor is coasting in one direction with the reversing switch set for rotation in the other direction, until the speed falls to a predetermined value. A series traction motor 14 is adapted to be supplied from an engine-driven generator 11, which may be of the variable-speed type provided with a mechanically-coupled exciter 12, through a contact of line switch LS and contacts of a reversing switch RS, which co-operates with a reverser interlock device 22. The line and reversing contactors are governed by a master controller MC and a reversing controller RC which is so interlocked with the main controller, through means which may be of the type described in Specification 212,675, [Class 38 (iii)], as to be immovable except when the main controller is in the " off " position. A switch 35 is closed for starting, to energize a polarizing winding 32 of a relay PR, which is not, however, closed, and to close a relay AP to connect the motor series winding 15 to a battery 30. If the reversing controller is moved to a " forward " position, a winding 19 of the switch RS is energized and, upon closure of the main controller, a winding 39 of the switch LS is energized. A contact 13 is closed for forward motor operation and the motor series field winding is disconnected from the battery. Movement of the master controller to the " off " position causes the switch LS to drop out and a winding 31 of the relay PR is connected across the motor armature and the field winding 15 is re-connected to the battery. The traction motor therefore acts as a generator and applies a voltage to the winding 31, the polarity of which is such that the relay PR does not pick up provided that the reversing switch remains in its original position. If the reversing controller is moved to reverse the motor armature during coasting operation, the polarity of the winding 31 is reversed by movement of the switch RS and the relay PR picks up to open its contact 40. Thus, if the master controller is moved to an operative position, the winding 39 of the line switch will not be energized to reverse the motor whilst it is still in motion.
Patent GB-1156805-A (GB)
Title: Penicillins and a process for the preparation thereof
Inventor: LEMIEUX RAYMOND URGEL
IPC: C07D275/02
Filed: 1966-06-28
Abstract: 1,156,805. Penicillins; isothiazolyl acetic acids. R. & L. MOLECULAR RESEARCH Ltd. 28 June, 1966 [28 June, 1965], No. 29016/66. Headings C2A and C2C. 6 - Isothiazolylacetamido penicillanic acids have the following Formula I: wherein R<SP>1</SP> and R<SP>2</SP> are H, Cl, Br, I or CH 3 . Salts include the potassium, calcium, aluminium, ammonium and substituted ammonium salts, e.g. procaine and N-ethyl-piperidine salts. The penicillins are prepared by acylating 6-aminopenicillanic acid with an acylating derivative of an acid of Formula II wherein R<SP>1</SP> and R<SP>2</SP> have the above meanings. Typical penicillins are 6-(isothiazol-5-yl-acetamido) penicillanic acid, 6-(4-chloroisothiazolyl- 3-yl-acetamido) penicillanic acid and 6-(3- methylisothiazol - 5 - yl - acetamido) penicillanic acid. Alternatively, the penicillins are prepared by cultivating Penicillium notatumchrysogenum in a nutrient medium in the presence of a precursor of Formula II or a functional equivalent thereof. Lsothiazol-3-yl acetic acid is prepared by the following steps:- (A) 3-Bromomethylisothiazole is prepared by treating 3-methylisothiazole with N-bromosuccinimide. (B) A mixture of 3-cyanomethylisothiazole and 3-carbonamidomethylisothiazole is prepared by treating 3-bromomethylisothiazole with sodium cyanide and methanol. (C) Methylisothiazol-3-yl acetate is prepared by treating the aforesaid mixture with cone. HCl and methanol. (D) Isothiazol-3-yl acetic acid is prepared by treating methylisothiazol-3-yl acetate with NaOH and methanol. Isothiazol-4-yl acetic acid, isothiazol-5-yl acetic acid, 4-chloroisothiazol-3-yl acetic acid, 4-bromoisothiazol-3-yl acetic acid, 3-methyl isothiazol-4-yl acetic acid and 3-methyl-isothiazol- 5-yl acetic acid are prepared in a similar manner. p-Nitrophenyl isothiazol-3-yl acetate is prepared by treating isothiazol-3-yl-acetic acid with p - nitrophenol and N,N<SP>1</SP> - dicyclohexylcarbodiimide. p-Nitrophenyl isothiazol-4-yl acetate, p-nitrophenylisothiazol-5-yl acetate, p-nitrophenyl-4- chloroisothiazol-3-yl acetate, 2,4-dinitrophenyl- 3 - methyl - isothiazol - 4 - yl acetate, p - nitrophenyl - 3 - methyl - isothiazol - 5 - yl - acetate and 2,4 - dinitrophenyl - 4 - bromo - isothiazol - 3 - yl acetate are likewise prepared. Pharmaceutical compositions comprise a 6-isothiazolylacetamido penicillanic acid of Formula I or a salt thereof and a carrier. They may be used for the treatment of mastitis in cattle.
Patent GB-174406-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H3/46
Filed: 1920-10-14
Abstract: 174,406. Cable Accessories Co., Ltd., Reeves, F. H., and Crawford, A. Oct. 14, 1920. Switches, quick-break, have an external handle c secured to an operating- spindle d which carries a crank e connected by links f, g to the contact-carrying member a, which oscillates about a fixed plate b, the axis of which pivot is eccentric to that of the operating-spindle d. A spring i tends to draw the contact-carrying member a from the fixed contacts h, and in the opening operation the link g can be displaced in a certain arc of movement, after which the contact-carrying member a is withdrawn from the fixed contacts with a snap-action.
Patent GB-889401-A (GB)
Title: Improvements in or relating to magnetic sound recording and playback apparatus
IPC: G11B17/34
Filed: 1958-09-10
Abstract: 889,401. Magnetic sheet records; shrinkage. TOKYO DENKI KAGAKU KOGYO KABUSHIKI KAISHA, and HOSHINO, Y. Sept. 10, 1958 [Dec. 18, 1957], No. 29042/58. Class 40 (2). [Also in Group XX] To measure and compensate for elongation and shrinkage of magnetic sound-and-picture sheet records as used on a machine such as described in Specification 850,291, the machine incorporates record measuring means. In Fig. 3, a sample of typical record material 27 is laid under a transparent window 31, perforated for atmospheric access and an indication is given on a scale 29. In Fig. 5, a sample 34, treated with a material, such as cobalt chloride, whose colour indicates humidity is matched with one of a series of tinted spots 35<SP>1</SP>, forming a colour scale. In Fig. 7, rocking a lever 42 marks the record at 35, 35<SP>1</SP> at the time of recording, the marks being compared with a zero mark 39 and a scale 40 on playback. In Fig. 8, the record is mounted over the usual locators 15, 15<SP>1</SP>, of which 15 is fixed, the edge of the record 44 registering with a scale 29 or in a further embodiment (Fig. 9, not shown), movement of the locator 15<SP>1</SP> is shown on a lever and scale. Appropriate tracking adjustments on playback are made by a screw 20, Fig. 10, which moves the plate 11 which supports and locates the record.
Patent GB-173631-A (GB)
Title: Improvements in or in connection with extrusion machines or presses
IPC: B30B11/24
Filed: 1920-10-15
Abstract: 173,631. Sizer, A. W. Oct. 15, 1920. Extrusion machines; stream-cutting machines ; feeding.-A machine for compressing and moulding meal into a form suitable for feeding cattle &c., of the kind having two cylinders on the same axis and means for forcing the material fed into the two cylinders in opposing directions out through the delivery ends, comprises cylinders A, A' of the same diameter, and forcing screws D, D' of opposite hands and of constant and equal diameter. The screws are mounted on a shaft E driven by gears E, E<1> from the main shaft F. The material is fed from a trough L by a feed worm l down the shoots M, M' to the cylinders. A slide may be provided to cut off the supply of material to either or both of the shoots. The material is extruded through perforated die-plates J, J<1> and is cut by knives K, K<1> fixed on the outer ends of the screw spindles. Spirally grooved liners may be fitted inside the cylinders.
Patent GB-1146490-A (GB)
Title: Improvements in or relating to getter pump assemblies
IPC: H01J41/16
Filed: 1966-06-29
Abstract: 1,146,490. Ionization pumps. SIEMENS A.G. 29 June, 1966 [30 June, 1966], No. 29158/66. Heading HID. A discharge tube-e.g. a travelling wave tubehaving a main cathode includes also a getter pump assembly having an indirectly heated auxiliary cathode mounted adajcent at least one target electrode coated with or formed of a getter substance, such that the auxiliary cathode both heats the target electrode by electron bombardment and also ionizes the gas. A metal capillary dispenser auxiliary cathode (Fig. 1, not shown) may be mounted in front of a zirconium or titanium coated molybdenum disc target electrode, the region directly opposite the cathode being left uncoated. The normal radial decrease in temperature of the disc may be modified to provide optimum temperatures for the gettering of a plurality of gases by a variation of the disc thickness with radius, and by adjustment of the voltage applied across the electrodes. In an alternative arrangement, as shown, two getter-coated target electrodes 2 and 3, the latter being apertured, are employed, the temperatures being determined by the relative potentials and spacing. In a further embodiment (Fig. 3, not shown) a cylindrical dispenser cathode having an emitting surface at each end is disposed between two gettercoated electrodes. The ionizing effect of the electron beam may be increased by using a convex or concave cathode surface, and a gettercoated electrode in the form of a hollow cylinder, with an open end facing the cathode and getter material at the bottom of the cylinder, is referred to. The heating element of the auxiliary cathode may be connected in series or parallel with that of the main cathode of the discharge tube; in a further arrangement, the tube incorporates a two-faced cathode, one emissive surface acting as the main cathode of the tube, and the other as the auxiliary cathode.
Patent GB-1437181-A (GB)
Title: Reduction of metal oxides
IPC: C21B5/06
Filed: 1972-06-22
Abstract: 1437181 Reduction of metal oxides EXXON RESEARCH & ENG CO 22 June 1973 [22 June 1972] 29246/72 Heading C7D In a process for the reduction of a metal oxide, e.g. of iron oxide in a blast furnace, with consequent production of a gas stream containing H 2 , CO and CO 2 , at least a portion of the gas stream produced is treated (a) to decrease the CO 2  content with simultaneous heating, e.g. by passage through a heated fluidized bed of lime particles, and (b) to increase the Hz and/or CO content, e.g. by passage through a fluidized cracking bed in which hydrocarbon fuel is partially oxidized, the thus treated portion of the gas stream then being recycled for the reduction of further metal oxide. Regeneration of carbonated particles from the fluidized lime particle bed, and of carbon carrying particles from the fluidized cracking bed may be achieved by an exchange of particles with a calcination fluidized bed and a carbon removing fluidized bed respectively; the latter two beds being fluidized in series and the gases which have passed in sequence through these beds being used in heating of blast air for the blast furnace.
Patent GB-173368-A (GB)
Title: Improved mechanism for providing feed holes to the paper tape of telegraph perforating instruments
IPC: H04L13/06
Filed: 1920-10-20
Abstract: 173,368. Booth, A. C., and Willmot, A. S. Oct. 20, 1920. Punching-apparatus on revolving drum.-The feed-holes in the paper tape used in telegraph code perforating-instruments are made by means of a disc 2 fitted with peripheral punches co-operating with a die-disc 1, the device being installed in the code perforating- instrument. A sharpener 3. of abrasive material is held against the punchers by a spring 4. The punching-device is rotated by the return action of the keyboard levers in the case of keyboard perforators, and from the spindle which moves forward the paper tape in the case of receiving-devices. The punching-disc 2 serves also to feed the paper strip forward to the code punchblock.
Patent GB-1008492-A (GB)
Title: Rod aerial/radio receiver systems for motor vehicles
Inventor: WHITE HUGH RUSSELL
IPC: H01Q1/08
Filed: 1963-07-26
Abstract: 1,008,492. Two-part couplings. FORD MOTOR CO. Ltd. July 10, 1964 [July 26, 1963], No. 29633/63. Heading H2E. [Also in Division H4] In u rod aerial/radio receiver system for a motor vehicle, the lower end 9 of a rod aerial I constitutes the central contact member of a connector 7 for a coaxial cable 21, extended from the input terminals of a radio receiver, and is carried in an insulating sleeve 15 contained in an outer contact member 13 having a spherical portion 19, which makes good electrical earthing contact with the edge of a hole 39 in a vehicle body part 3 when the screws 43 of a clamping device 5 are tightened, and allows the aerial to be tilted as desired. The outer contact member 13 also has a cylindrical portion 17 with a bore for receiving the cable 21, which has a hollow central conductor 23 into which the end 9 of the aerial enters. The outer conductor 25 of the cable is crimped to form a collar 27 which is held against the end of cylindrical portion 17 by a screw cap-nut 33, a sealing ring 29 preventing the ingress of moisture. The clamping device 5 comprises a pressure plate 41 with an opening 45 having a part spherical surface which bears upon the spherical part 19 of the outer contact member 13, and self-tapping clamping screws 43 engaging in holes in the vehicle body part 3. A spacing plate 49 with a part spherical face 53 and a gasket 51 are located beneath the pressure plate 41 and the whole is contained within a dished cover plate 5, an inwardly projecting flange 61 on one side of which is trapped beneath the plate 49 and an indentation 63 on the other side of which latches in a re-entrant part 65 of the plate.
Patent GB-966483-A (GB)
Title: Copolyesters
IPC: C08G63/193
Filed: 1960-08-29
Abstract: Random copolyesters contain the residues of terephthalic acid, isophthalic acid and bis-phenols of formula: <FORM:0966483/C3/1> in which R and R1 are alkyl, alkenyl, alkaryl or aryl radicals or hydrogen or in which R and R1 may together form a cycloaliphatic ring and BETA is hydrogen, chlorine or C1-C4 alkyl; the bis-phenol terephthalate units comprising from 10-40% or 60-90% of the sum of the bis-phenol terephthalate and bis-phenol isophthalate units. The copolyesters may be made by reacting the acid chlorides of terephthalic and isophthalic acids with the bis-phenol whilst removing hydrogen chloride from the mixture, e.g. in a current of an inert gas. Reaction may be effected in the presence of a solvent, e.g. dichloroethyl benzene.  After the reaction the polyester may be precipitated from the mixture by adding toluene. Some of the copolyesters are soluble in chloroform, ethylene dichloride, trichloroethane, chlorobenzene, benzene, cyclohexanone, dioxane and tetrahydrofuran.  Uses:  films, fibres, moulded articles and coating compositions.
Patent GB-503969-A (GB)
Title: Improvements relating to seats
IPC: A47C9/02
Filed: 1937-10-30
Abstract: 503,969. Folding seats; brackets. STEVENS, T. J. Oct. 30, 1937, No. 29694. [Classes 52 (ii) and 52 (v)] A seat 1 is carried by arms 3, 4 extending from a column 5 which is rotatably and slidably mounted on a guide member 6 and supported in a base or floor socket 9, and which forms the sole support of the seat and is, held against rotation when the seat is turned into position for use by a projection 14 dropping into a locking or retaining recess. The socket 9 may have three recesses spaced apart by 90‹, and the upper edge of the wall of the socket may slope from the middle recess 11 to the outer recesses 12. The pillar 5 may be inclined so as to cause the seat to swing to one side or the other when the pin 14 is lifted from the central notch. A retaining cap 15, Fig. 6, may be fitted over the socket 9.