baber/WOPTO huggingface dataset:
Patent GB-1352451-A (GB)
Title: Nail magazine for a fastener-driving tool
IPC: F16B27/00
Filed: 1971-07-07
Abstract: 1352451 Nail-magazine for a fastener-driving tool HILTI AG 7 July 1971 [28 Aug 1970] 31803/71 Heading B8C A magazine, fitted with headed nails 16 and for a power-operated fastener driving tool 1, which is adapted to drive the nails, one at a time, by a piston 9 operated by powder detonation, comprises a flat band 17 which is adapted to be inserted into a channel 15 which extends perpendicularly to a piston bore 7 in a stand plate 1a of the tool and which is made of such a material and thickness that the band can be punched through by the heads 16a of the nails as the piston 9 drives each nail, in succession, into material 11. The band, which is preferably made of aluminium alloy, has recesses 17b for effecting feed through the tool 1, a pair of recesses 17a, 17a being cut out round the shank 16c of each nail to define a washer portion which corresponds to the shape of the nail head 16a. When a trigger 3 is pulled a firing pin 4 detonates a cartridge 6 located in a magazine 5 so that the piston head 9a descends in a piston guide 8 and a recessed end 7a of a piston shaft 9c engages a corresponding projection 16b on the respective nail head 16a to drive the nail down through the bore 7 and into the material 11. To raise the piston into its upper, operating, position a handle 12 is depressed to lower the piston guide 8, against the action of a compression spring 14, over the piston head 9a to engage friction surfaces 13 thereon. The handle is then released so that the spring 14 raises the guide 8 carrying the piston 9 with it into its operating position. The entrance side of the channel 15 has a groove which receives the heads 16a of the nails.
Patent GB-338316-A (GB)
Title: Improvements in disintegrating, tearing, kneading, mixing, drying or like machines
IPC: B01F7/04
Filed: 1929-10-19
Abstract: 338,316. Deberag Deutsche Beratungsges. fur die Chemische und Metallurgische Industrie. Oct. 19, 1928, [Convention date]. Openers &c. - Agitator mechanism for a disintegrating, tearing, kneading, mixing, drying, or like machine comprises revoluble operating arms c mounted co-axiallv with the casing a of the machine and a revoluble framework or drum b eccentrically mounted within the casing and operatively engaging the arms, the disposition being such that the arms execute a reciprocatory motion in relation to the framework or drum b during revolutions of the drum and arms within the casing. The arms c are loosely mounted on a shaft d co-axial with the casing a and project through slots z in the drum or framework b mounted on a shaft b<1> eccentrically of the axis oi the casing. As the shaft b<1> rotates the arms c revolve in a casing a and execute a reciprocating motion in the slots in the drum b. The casing is provided with an inlet t<1>, Fig. 3, and an outlet t<2> and the casing may be provided with a jacket f for the circulation of a treating or cooling medium. The slots z may be arranged helically on the drum b or the ends of the rods may be provided with helically disposed blades or scraping members so that the material is advanced along the casing; the drum b may also be provided with helical grooves r for this purpose. If the machine is used for disintegrating or tearing materials the surfaces of the drum b and casing a may be provided with teeth, knives &c. which may be distributed helically around the surfaces. The casing a or drum b may also be in the form of a single or double cone or obtuse cone, so that the action proceeds from one end to the other or from the middle to the ends.
Patent GB-428780-A (GB)
Title: Improvements relating to boxes or containers for metal and other sheet material
Filed: 1933-11-15
Abstract: 428,780. Packing metal and like sheets. GRAY, L. H., Penrice Cottage, Pentrepoeth Road, Morriston, Swansea. Nov. 15, 1933, No. 31828. [Class 94 (i)] Metal &c. sheets are packed in a metal tray - like container provided with L-section metal stiffeners 4, 5, of the same thickness throughout which extend along the sides and/or ends in contact with the floor and walls of the container, the latter being closed by a metal plate which is soldered, &c., to the inwardly and downwardly bent edges of the walls. The container is folded up from a rectangular blank with the ends 6 turned over and brazed or soldered to the sides ; and the stiffeners comprise flat strips placed on the blank and folded up therewith, or they may be preformed, or be formed by folding the edges of the sides of the container downwardly and inwardly. The upper edges of the stiffeners may be brazed or soldered to the sides. The container and stiffeners are made of tinplate &c.
Patent GB-808393-A (GB)
Title: Improvements in automatic date-printing devices
IPC: B41J3/00
Filed: 1956-10-19
Abstract: 808,393. Typewriters. SIEMAG FEINMECHANISCHE WERKE, G. m. b. H. Oct. 19, 1956 [Oct. 24, 1955], No. 31837/56. Class 100(4) A device for automatically writing the date in a typewriter connected to a calculating machine, comprises a series of contacts 11-15 operated by the carriage of the typewriter, and change-over contacts 6-10 which prepare circuits to manually set date switches 17-20 connected to digit printing magnets 24<0>-24<@9>. Automatic action from the calculation machine, causes closure of contact 1, or manual action causes closure of contact 2 so that a relay 3, 4 is operated and held by contact 5. Operation of relay 3, 4 changes over the contacts 6-10 thereby disconnecting a code device used for normal digit printing, and connecting the carriage operated contacts to the date switches 17-20. Switch 17 is set to the days tens digit, switch 18 to the days units digit, and switches 19, 20 to the month digits, so that as the carriage is letter-spaced contacts 11-15 are closed, one after the other, and circuits to the print magnets are established. In each operation a contact 25 is opened to break the printing magnet circuit and the carriage is advanced one letter-space. After date printing is complete a contact 27 is opened by the carriage and relay 3, 4 is released. A dot is printed between the day and month digits, and if necessary the year may be printed by the use of further contacts as indicated by the dotted line. Specification 737,928 is referred to.
Patent GB-1116352-A (GB)
Title: A resistor having an abruptly changing negative temperature coefficient
IPC: H01L45/00
Filed: 1965-07-27
Abstract: 1,116,352. Semiconductor resistor. HITACHI SEISAKUSHO KABUSHIKI KAISHA. 27 July, 1965 [28 July, 1964], No. 31981/65. Heading H1K. A semi-conductor oxide comprises a crystalline structure of vanadium dioxide as a major component and having therein a solid solution of at least one element which raises or lowers the temperature at which the resistance changes abruptly. The element is preferably Cr, Ti, Ge, Fe, Co, Ni, Mn, Nb, W, Mo, or Ta. In a resistor having platinum electrodes, the VO 2  composition grains are surrounded by an oxide coating which electrically connects the grains. The oxide coating may be at least one oxide of the elements Ag, Mg, Ca, Ba, Sr, Pb, La, P, B, Te, V or Na or V 2 0 5 . Insulating oxides such as SiO 2  may also be incorporated in the oxide coating. The crystalline structure may be made by mixing the components, fusing in air to 1000 C., pulverizing, heating in NH 3  at 350- 400 C., milling, shaping into beads, rods, discs or flakes and sintering in a reducing or inert atmosphere to at least 100 C.
Patent GB-1396207-A (GB)
Title: Prostaglandin intermediates and the preparation thereof
IPC: C07F9/40
Filed: 1973-03-30
Abstract: 1396207 Cyclopenta[b]furan derivatives UPJOHN CO 30 March 1973 [27 April 1972] 32008/74 Divided out of 1396206 Headings C2C and C2P The invention comprises optically active cyclopenta[b]furan derivatives of the formula or racemates thereof, wherein C n H 2n  is C 1-9  alkylene, with 1 to 6 carbon atoms in the chain -CFR 2 - and terminal CH 3 , and either M is or and R 6  is H or 2-tetrahydropyranyl, or M is = O, and R 6  is R 3 , wherein R 3  is benzoyl or naphthoyl optionally substituted 1 to 5 times by C 1-4  alkyl, C 7-10  phenylalkyl, or NO 2 , provided that not more than two of the substituents are other than alkyl, and the total number of carbon atoms in the substituents does not exceed 10, C 2-5  alkoxycarbonylbenzoyl, or acetyl and their preparation. Compounds of the above formula in which M is and R 6  is 2-tetrahydropyranyl are prepared by etherifying the corresponding compounds in which R 6  is H, obtained by hydrolysing the appropriate compounds in which M is and R 6  is R 3 , which are made by reducing the compounds in which M = O, resulting from treating the corresponding 5α - acyloxy - 4#- formyl - 3,3a#,4,5,6,6a# - hexahydro - 2H- cyclopenta[b]furan-2-ones with anions of phosphonates of the formula wherein R 5  is C 1-8  alkyl. 5α - Benzoyloxy - 4# - formyl - 3,3a#,4,5,6,6a#- hexahydro - 2H - cyclopenta[b]furan - 2 - one is prepared by oxidizing 5α-benzoyloxy-4#-hydroxymethyl - 3,3a#,4,5,6,6a# - hexahydro - 2H - cyclopenta[b]furan, resulting from the demethylation of the corresponding 4#-methoxymethyl compound, which is obtained by deiodinating 5α- benzoyloxy - 6 - iodo - 4# - methoxymethyl - 3,3a#, 4,6,6,6a# - hexahydro - 2H - cyclopenta[b]furan-2- one, resulting from the benzoylation of the corresponding 5α-hydroxy compound. Methyl 2,2-difluorohexanoate is obtained by reacting methyl 2-oxohexanoate with MoF 6 .BF 3 . Dimethyl 2 - oxo - 3 - fluoroheptylphosphonate dimethyl 2 - oxo - 3 - fluoropentylphosphonate, dimethyl 2 - oxo - 3,3 - difluoro - 4 - methyloctylphosphonate and dimethyl - 2 - oxo - 3,3 - difluoroheptylphosphonate are obtained by reacting dimethyl methylphosphonate with ethyl 2- fluorohexanoate, methyl 2-fluorobutyrate, methyl 2,2 - difluoro - 3 - methylheptanoate and methyl 2,2-difluorohexanoate respectively.
Patent GB-263491-A (GB)
Title: Waste heat steam generator system
IPC: F22B35/00
Filed: 1926-12-17
Abstract: 263,491. La Mont Corporation, (Assignees of La Mont, W. D.). Dec. 22, 1925, [Convention date]. Producer plants.-A steam generator, heated by the waste heat of the blow gases from a gas producer, is enclosed in a heating chamber having valves for shutting off the chamber from the producer and from the outlet for the heating gases, the valve on the gas exit being closed before that on the gas inlet from the producer, so as to increase the pressure in the heating chamber. An inert gas may be introduced into the heating chamber on closure of the valves, which may be automatically operated. In a carburetted water gas plant the blow gases from the superheater 3 pass in through a chamber 5 containing a steam generator 6. A valve 7 closing the main 4 is operated hydraulically from a cylinder 23 the fluid to which is controlled by a manually operated valve 30. A slack cable 28 connecting the valve lever 27 with a lever 29 causes a valve 9 in the outlet pipe 8 to be raised after the valve 7 and to close before the latter. The same result is obtained by a slotted rod 38 (Fig. 14). Positive hydraulic operation of both valves may be employed. Water is circulated by a pump 17 through the tubes 16 and headers 10, 11, steam being collected through pipes 22 having extensions 14, 15 for injecting steam above and below the valve 7. Inert gases may be employed instead of steam as shown in Fig. 14 and their supply may be manually or automatically controlled. The pressure difference between the inside of the chamber 6 and the atmosphere or the gas main actuates a diaphragm 52 attached by a rod 57 to a slide valve 56 which opens to admit steam or blow gases when the pressure in the chamber 6 falls. Blow gas from the exhaust main 59 is forced into the holder 60 by a pump 61 and this gas is fed when required to the chamber 6 through a pipe 63. An explosion door may be incorporated in the exit valve 9, Fig. 7, and comprises a plate 78 pressed by springs 80 to this valve ring 77. Specifications 252,314 and 268,816 are referred to.
Patent GB-1122211-A (GB)
Title: Moulding compositions for producing abrasive fabrics
IPC: B24D11/00
Filed: 1965-07-27
Abstract: A polishing fabric comprises a supporting fabric, an intermediate layer and a phenolic resin-bonded abrasive grain layer, the intermediate layer comprising a mixture of, (a) an epoxy resin based on bis-phenol A, and (b) at least one epoxy resin containing terminal epoxy groups and based on bis-phenol A, which resin has been internally plasticized, by reaction with castor oil in the presence of a Lewis acid and (c) a hardener. The epoxide resins may be formed by reacting bis-phenol A with epichlorhydrin or dichlorhydrin in alkaline medium and have epoxy equivalents of between 180 and 500 and viscosities of from 10,000 to 60,000 cp. at 25 DEG  C. Liquid resins may be mixed with butylglycidyl ether, phenol-glycidyl ether, cresylglycidyl ether and styrene oxide.  The mixtures may have viscosities of between 400 and 5000 cp.  The plasticized component (b) may be prepared by the reaction of bis-phenol A diglycidyl ether with castor oil in molar ratio of from 1:0.25 to 1:0.3.  There may be from 10 parts by weight of (a) to 90 parts by weight of (b) to 90 parts of (a) to 10 parts of (b).  The hardners may be aliphatic and aromatic polyamines and anhydrides, e.g. metaphenylenediamine, methylene-dianiline and diamino-diphenylsulphone.
Patent GB-912683-A (GB)
Title: A d.c. source for electrolytic metal machining
IPC: G05F1/32
Filed: 1961-09-06
Abstract: 912,683. Electrolytic machining. DEUTSCHE EDELSTAHLWERKE A.G., and ALLGEMEINE - ELEKTRICITATS - GESELLSCHAFT. Sept. 6, 1961 [Sept. 7, 1960], No. 32072/61. Class 41. In the electrolytic machining of metals preferably using a grinding-wheel, arcing and spark erosion between the tool 5 and workpiece 4 is prevented by bridging the D.C. output circuit with a Zener diode 6, the break-down voltage of which is below the arcing voltage. A resistance 7 and condenser 8 may be included to reduce power load on the Zener transistor at arcing voltage, and may also be connected to a controller 9, e.g. a grid-controlled valve, which on load reduces the D.C. output voltage.
Patent GB-824355-A (GB)
Title: Improvements in or relating to methods of and apparatus for extracting a moulded article from the mould in which it is made
Inventor: MILN PETER MCNAB
IPC: A23G3/02
Filed: 1956-10-22
Abstract: 824,355. Extracting table jellies &c. from moulds. BIRD & SONS Ltd., A. Jan. 22, 1958 [Oct. 22, 1956], No. 32102/56. Class 87(2). A moulded article, such as a table jelly, is removed from the mould by forcing a hypodermic-type needle through the article to supply beneath it a fluid under pressure, e.g. compressed air so as to "float" it in the mould and by holding it by means of a vacuum against a member with which it is removed. The needle 5 is attached to a piston 4 reciprocable in a cylinder 3 mounted on the base plate 1 by means of the compressed air which is fed, as required, from a valve through either of the conduits 19, 20. It is only when the compressed air is fed through conduit 20 to force the needle down through the moulded article that air is also supplied through the needle, air fed through conduit 19 merely serving to retract the needle. The base plate is provided with recesses 24 connected together and with conduit 25 through which the vacuum is applied. A second valve may also be included and this serves to pass compressed air to the recesses via conduit 23 after the articles have been removed from the mould so as to release them from the base plate. In a modified form of apparatus, the cylinders 3 are inclined to the base plate so that the needles 5 enter the mould at an angle, in which case it is unnecessary to use suction to hold the article against the base plate.
Patent GB-1096388-A (GB)
Title: Retrieval system for logging while drilling
Inventor: GROSSMAN GEORGE JOHN
IPC: E21B47/12
Filed: 1965-07-27
Abstract: 1,096,388. Borehole logging. TEXACO DEVELOPMENT CORPORATION. July 27, 1965, No.32144/65. Heading G1N. Signals from a "logging sonde" in a drill pipe are transmitted to the surface by electromagnetic coupling between an inductor in the top of the sonde capsule and an "overshot device" which is lowered down the drill pipe. The signals may be transmitted immediately or played back from a tape-recorder in the logging capsule. Coded D. C. pulses or R. F. signals may be transmitted over the signal channel to switch on the logging circuitry and control the tape recorder. The play-back may be at high speed, e.g. during rewind.
Patent GB-304585-A (GB)
Title: Improved manufacture of metal alcoholates
IPC: C07C29/70
Filed: 1928-11-05
Abstract: 304,585. Wacker Ges. f³r Elektrochemische Industrie Ges., Dr. A. Jan. 21, 1928, [Convention date]. Alcoholates.-Alkali metal alcoholates are prepared from alcohols having more than three carbon atoms in the molecule by boiling the alcohol with an alkali metal hydroxide. The reaction may be conducted in a fractionation apparatus arranged so that the water produced passes away with part of the alcohol vapour, the excess of alcohol returning to the reaction vessel. The alcohol in the condensate, if only slightly miscible with water, may be separated and returned to the reaction vessel. Neither the alcohol nor the metal hydroxide need be anhydrous. In one example, n-butyl alcohol is boiled with caustic soda in a distillation apparatus. Water and alcohol are distilled over, and when the reaction is complete the excess of alcohol is distilled at ordinary or diminished pressure. Other examples, conducted similarly, describe the preparation of the sodium derivatives of a mixture of amyl alcohols from fusel oil, and of potassium butylate. Reference is made also to the preparation of alkali metal derivatives of cyclic alcohols, such as benzyl alcohol and cyclohexanol.
Patent GB-1300440-A (GB)
Title: Current control arrangement
IPC: H04M19/00
Filed: 1970-07-02
Abstract: 1300440 Protective arrangements COMPAGNIE INDUSTRIELLE DES TELECOM. MUNICATIONS CIT-ALCATEL 2 July 1970 [8 July 1969] 32279/70 Heading H2K A protective arrangement for a plurality of fused supply circuits SE, e.g. in telecommunication exchanges, comprises a diode gate circuit D1 ... D5, D11 ... D15, D21 ... D25 operative to render a transistor T1 conducting when one or more (but not all) of the fuses F1 ... F5 are ruptured. When the transistor T1 conducts, it renders a transistor T2 conducting to gives a fault-indicating signal at Sg. It also renders transistors T3, T4 non-conducting so that a relay CA, connected to terminal Sc, releases and opens its contacts Cα1 ... Ca5 to interrupt the supply to the circuit SE. When a fuse blows, it closes associated contacts f1 ... f5 to complete a circuit f to the terminal Sg to ensure that a signal is given should all fuses F1 ... F5 blow simultaneously, as under that condition the transistor T1 would not be rendered conducting. Interconnections BLe and BLs to identical protective arrangements cause all the arrangements to operate simultaneously.
Patent GB-506731-A (GB)
Title: Improvements in accumulators
IPC: H01M50/627
Filed: 1937-11-23
Abstract: 506,731. Batteries. ANDRE, H. U. Nov. 23, 1937, No. 32289. Convention date, Dec. 28, 1936. Addition to 491,782. [Class 53] The grids or screens for receiving deposited metal in the accumulator of the parent Specification are made of flattened strips which are arranged normally to the surface of the adjacent negative electrode except at the points where they cross where they are oblique. Fig. 4 shows a portion of a grid made from strips 108. The grid may be made in the form of a cylinder within which the negative electrode is placed, the grid being subsequently flattened to conform to the shape of the electrode. The negative electrode covered with the grid may be folded as shown in Fig. 6 to form compartments to receive the positive electrodes with their cellulosic coverings. Fig. 1 shows the upper part of an accumulator having a metal casing 5 with which the negative electrodes are in direct contact, the positive electrodes being connected together by conductors 21 which pass through the caps closing the cellulosic coverings of the positive electrodes.
Patent GB-1267371-A (GB)
Title: Variable-pitch bladed rotors
Inventor: CHILMAN JOHN ALFRED
IPC: B64C11/30
Filed: 1968-07-08
Abstract: 1,267,371. Variable-pitch propellers. DOWTY ROTOL Ltd. 17 June, 1969 [8 July, 1968], No. 32404/68. Heading B7V. A variable-pitch propeller comprises a blade 16 carrying at one side a fly-weight to effect pitch-coarsening and at the opposite side on plunger 50 engageable with a stop on the hub 11, 12 when the rotor speed is below a predetermined value. At speeds below the predetermined value the plunger 50 is spring-biased into hole 56 in a plate 55 on the hub and locks the blade at zero pitch, at higher speeds the plunger moves outward under centrifugal force and adjustment of pitch is allowed. In pitch change motor 24, a member 28 and diaphragms 29, 30 form a chamber 32 containing pressurized nitrogen and a chamber 31 connected by bore 40 of tube 33 to a manually operable fluid control valve. Supply of fluid to chamber 31 moves member 28, tube 33 and a yoke 35 engaging a pin on the blade root, and thus effects pitch change.
Patent GB-637561-A (GB)
Title: Improvements in or relating to continuous nitration apparatus
IPC: C06B21/00
Filed: 1947-12-09
Abstract: 637,561. Mixing appliances. OLIN INDUSTRIES, Inc. Dec. 9, 1947, Nos. 32441 and 32442. Convention dates, March 31, 1943. [Class 86] A mixing appliance for nitration processing comprises a vessel with means for controlling the temperature of its contents, an inlet at one end and an outlet at the other end, and containing two sets of agitators mounted upon two shafts arranged in axial succession, at least one agitator on one of the shafts being pitched oppositely to another agitator on the shaft. As described, nitrating acid and the material to be nitrated are introduced through inlets 10 into the upper end of the, arm 11 of a vessel 1 comprising a U-tube with cooling or heating jackets 2-8. Within each arm the vessel contains a plurality of agitators 14-16 and 20-22 carried respectively by shafts 19, 17, which are driven in the same direction by gearing 37-39, thus separating the contents under treatment into two zones of opposing circulation on either side of the connecting portion of the U-shaped vessel to prevent a return flow of mixture from the arm 13 to the arm 11. The blades of the agitators 14, 16, 22 are arranged to force the mixture inwardly as indicated by arrows 30, whilst the blades of agitators 15, 20, 21 force the mixture outwardly as indicated by arrows 29. The reacted material is discharged by overflow into the outlet 12.