baber/WOPTO huggingface dataset:
Patent GB-1507909-A (GB)
Title: Film cartridge
IPC: G03B21/32
Filed: 1975-12-16
Abstract: 1507909 Motion picture viewing cartridge MONTRON CORP 16 Dec 1975 [23 Dec 1974] 51492/75 Heading B8M A cartridge 10 suitable for viewing motion pictures comprises a viewing aperture 24, an endless length of film 26 having perforations along one edge, a sprocket 56 for advancing the film past the aperture and an indexing plate 29 having a pair of indexing projections 28 disposed on opposite sides of the aperture and flange 38 and ribs 39, 41, Fig. 7, for guiding the film over the index plate and past the aperture. In the embodiment of Figs. 1-7 the indexing is facilitated by a pair of pivot arms 81 having arcuate film guiding portions 81c and arms 81a that are urged together by leaf spring 86. As sprocket 56 is rotated say counter-clockwise the upper run 67 of the film is tensioned and pulls its guide 81c towards sloping mirror 51 by rotation of arm 81 about its pivot 82. When the movement is sufficient to free the film from the adjacent projection 28 the tension advances the film until the next perforation is engaged by projection 28. This engagement is facilitated by spring 86 causing counter-clockwise rotation of pivot arm 81. The cycle of relatively slow build up of film tension followed by relatively rapid indexing of the film by one perforation and thus one picture frame is repeated. The indexing plate 29 is curved so as to bow the film as shown in Fig. 6. Movement of pivot arm 81 therefor does not cause the film adjacent the aperture to move out of focus. In the embodiment of Fig. 8 spring 86 and pivot arms 81 are replaced by a plastics member 151 having spring-like arms 157 whose curved surfaces 158 urge the film into engagement with plate 29 and projections 28. As the film is advanced one of the arms is flexed inwardly until the film is released from one of the projections 28 and is advanced one frame. The film may be formed into a roll 91 which is disposed on a spool 92. The spool has a hub 97 in the shape of a truncated cone, an annular roll supporting surface 93 and an upstanding rim 94. Helical spring 106 engages a notch 108 on the inner side of hub 97 and a rib 107 on cartridge side wall 14 to allow the spool to rotate counter-clockwise but not clockwise. Ribs (127, 128, 132, 133, Fig. 4, not shown) in the top wall 12 of the cartridge form channels (127, 138) to guide the film between spool 92 and sprocket 56. Further guidance is provided by slots 72 in ribs 69, 71 and by ribs 76. The guides are themselves ribbed so as to contact only the margins of the film and thus avoid scratching the picture frames. A viewer 141 for receiving the cartridge is shown in broken lines in Figs. 1, 2. The cartridge sprocket 56 is driven via crank 144 and pins 147. The cartridge is assembled by inserting all the components through the top and then fixing the top wall 16.
Patent GB-1422277-A (GB)
Title: Activation neutron detector
IPC: G01T3/00
Filed: 1973-11-07
Abstract: 1422277 Detecting neutrons INSTITUT FIZIKI AKADEMII NAUK GRUZINSKOI SSR 7 Nov 1973 51610/73 Heading G6P A neutron detector comprises a moulded and cured composition including a neutron-activable material distributed throughout the volume of a polycondensation resin inert with respect to neutrons; the material includes at least two chemical elements and/or a compound of at least two chemical elements, each of which elements is capable of interacting with neutrons to form respective radioisotopes with different disintegration energies. A wide variety of different compositions, and processes for preparing detectors using them, is described in relation to different neutron measurements. Thus, it is possible, for example, to provide a detector which is capable of use in measuring both fast and thermal neutron fluxes at a number of temperatures.
Patent GB-1412151-A (GB)
Title: Extensible strut adjuster with overload prevention device
IPC: F16D65/56
Filed: 1972-11-09
Abstract: 1412151 Slack adjusters GIRLING Ltd 5 Nov 1973 [9 Nov 1972] 51733/72 Headings F2E and F2K An automatic slack adjuster, particularly for vehicle brakes comprises first and second members 1, 14 having a non-reversible screwthread connection 4 therebetween and having respective thrust surfaces 2, 45, control means for turning the second member 14 relative to the first responsively to a requirement for adjustment, the second member 14 being in two parts 14a, 14b the first, 14a, of which has the non- reversible screwthread connection 4 and thrust surface 45 and the second 14b, of which is acted on by the control means, the two parts being so connected that the second part 14b rotates the first 14a when the control means is operative and the second part 14b turns relative to the first when an axial force is applied in one direction to the first part 14a. The adjuster shown is in a drum brake actuated by a wedge member 35 which acts on actuator members 11, 42 to spread them apart. During normal braking there is sufficient axial clearance at the reversible screwthread connection 23a, 23b between a control member 24 of the control means and the part 14a of the second member for the normal axial travel of member 14 not to take up fully this clearance. If lining wear takes place this clearance is taken up and member 14 acts on control member 24 tending to separate friction surfaces 25a, 25b respectively provided on the member 24 and the internal bore of the adjuster housing 25. The load of a spring 26 acting between the control member 24 and a retaining cup 27 is thereby partially relieved so that the reversible screwthread connection 23a, 23b turns member 24. On brake release screwthread 23a moves to the opposite flank of screwthread 23b before full release is attained. The screwthread connection 4 is thereby relieved of axial load and friction surfaces 25a, 25b are biased together by spring 26 thereby preventing rotation of control member 24. The second member 14 is thereby unscrewed from a strut 1, engaging one brake shoe lining to increase the length of the adjuster.  It is stated that providing the second member 14 in two parts 14a, 14b relieves the reversible screwthread connection of shock loads.
Patent GB-1047090-A (GB)
Title: Method and apparatus for charging a liquid with a gas
IPC: B01F3/04
Filed: 1964-12-22
Abstract: 1,047,090. Contacting gases with liquids: aerating liquids. KARTRIDG PAK CO. Dec. 22, 1964 [Dec. 26, 1963], No. 51995/64. Headings B1C and B1R. In a process for continuously producing a liquid charged with a gas an atmosphere of the gas is maintained in the upper part of a preferably cylindrical vessel 10 and the liquid is sprayed upwardly through nozzles 20 and is deflected downwardly by the top of the vessel and collected in the bottom of the vessel from which it is continuously withdrawn. The upper portion of the vessel may have a lining 23 of mesh material to prevent a film of liquid forming on the inner surface of the vessel.
Patent GB-520396-A (GB)
Abstract: 520,396. Pyridinium compounds. CHEMICAL WORKS, FORMERLY SANDOZ. Oct. 20, 1938, No. 30383. Convention date, Oct. 21, 1937. [Class 2 (iii)] Water soluble condensation products are prepared by the treatment with aldehydes or alkylolureas of pyridinium compounds of the general formula where X indicates hydrogen, a nitro, halogen or amino group, and " anion " represents hydroxyl or a radical of an inorganic or an organic acid. The phenyl and pyridine radicals may contain substituents. The amino group may, prior to the treatment with aldehydes or alkylolureas, be treated with alkylating, aralkylating or acylating agents, or these treatments may be performed subsequently. The compounds of the invention will form insoluble addition products on treatment with water soluble acid or substantive dyestuffs containing the sulphur group. Acylation products of soap-like character are prepared by using as acylating agents the acid chlorides of fatty acids of high molecula weight such as stearoyl chloride or the acid chlorides of the coconut fatty acids. Other acylating agents mentioned include p-toluenesulphonyl chloride, benzoyl chloride, acetyl chloride and chloracetyl chloride. Alkylating and aralkylating agents mentioned include, dimethyl sulphates, methyl chloride, ethyl bromide, p-toluene sulphuric acid esters, or benzyl chloride. In examples : (1) an aqueous solution of the hydrochloride of 2:4-diaminophenyl-1-pyridinium chloride is treated. with formaldehyde, and after 2¢ hours the solution is made alkaline with sodium carbonate, to give a brownish precipitate of the required condensation product. (2) The product obtained as above is treated with dimethyl sulphate solution in sodium carbonate solution. (3) An aqueous solution of the hydrochloride of 2:4-diaminophenyl-1-pyridinium chloride is treated with formaldehyde solution for two hours, and after neutralisation the product is reacted with stearoyl chloride in the presence of sodium carbonate. The product thus obtained is peralkylated with dimethyl sulphate. (4) An aqueous solution of 2:4-diaminophenyl-1-pyridinium chloride is treated with benzaldehyde, and the condensation product thus obtained is alkylated with dimethyl sulphate. (5) An aqueous solution of the hydrochloride of 2:4- diamino-phenyl-1-pyridinum chloride is treated with dimethylolurea for two hours at 20‹C. (6) The dimethylolurea in example (5) is replaced with dimethylolthiourea. (7) The condensation product obtained according to example (1) is reacted with p-toluene sulphonyl chloride. The p-toluene sulphonyl chloride may be replaced with chlor-acetyl chloride.
Patent GB-1522999-A (GB)
Title: Silencers for damping sound waves in gases
IPC: F01N1/00
Filed: 1975-12-20
Abstract: 1522999 Exhaust silencers SAAB-SCANIA AB 20 Dec 1975 52270/75 Heading F1B A silencer for damping sound waves in gases comprises a damping unit A having a tubular body 2 with end-walls 4, 5 through which an inner tube 1 passes in gas-tight fashion, the inner tube having openings to connect its inside with an annular chamber 6 which contains sound absorbent material 9, the tubular body 2 being surrounded by an outer tube 10 containing a space 13, 14 in communication with the inside of the inner tube via a transversely extending pipe 15 or 16. Three damping units A, B and C may be surrounded by two spaces 13 and 14, which may be separated by radial partitions 17, 18 or longitudinal partitions. The perforated portions of the inner tube are denoted by hatching. The perforations (101) are surrounded by collars (111) Fig. 2 (not shown).
Patent GB-1528180-A (GB)
Title: Computers for use in aircraft
IPC: G06G7/78
Filed: 1975-12-22
Abstract: 1528180 Radio navigation computer SPERRY RAND CORP 22 Dec 1975 [27 Jan 1975] 52428/75 Heading H4D A navigational computer for an aircraft processes positional data from both an OMEGA system and a VOR/DME system to give computed positional data which are more accurate than those obtainable (a) at long range from a VOR/DME station alone or (b) from an OMEGA receiver alone in the absence of elaborate correction for varying propagation effects. In the Fig. 1 embodiment, latitude data are processed: a similar system would be used for longitude data. At 15 the difference is determined between the VOR latitude signal # v  and a fed-back computed latitude # c . The difference is multiplied at 16 by a factor k inversely dependent on the DME range signal R (e.g. k is proportional to I/R, or I/R<SP>2</SP> or I/R<SP>3</SP>). The result is integrated at 17 to give an OMEGA compensation signal 8 which is added at 11 to the OMEGA latitude signal # o , giving the computed latitude # c . At short range, k will be large and the integration will cause # c  to track # v . At long range (k small), # c  will track # o . If either the VOR/DME or OMEGA signals are detected as being invalid the integration at 17 is stopped so as to freeze # at its prevailing value. Invalidity of the OMEGA signal also actuates switch 12 so that # c  takes up the value of # v . The Fig. 1 embodiment may use analogue and/or digital processing. An alternative embodiment uses an appropriately programmed computer to perform essentially the same processing (Figs. 2, 3, 4, not shown) and additionally provides a change-over to a deadreckoning computation in the event that both the OMEGA and VOR/DME system signals are invalid.
Patent GB-1536408-A (GB)
Title: Dc-dc converter circuits
IPC: H02M3/325
Filed: 1975-12-24
Abstract: 1536408 Automatic voltage control SIEMENS AG 24 Dec 1975 [27 Dec 1974] 52771/75 Headings G3R and G3X [Also in Division H2] In a DC-DC converter having automatic voltage regulation by monitoring the output voltage and using the error to control the keying ratio of a switching device such as transitor Tsl, an additional feed-forward regulator is included comprising a capactitor Cr charged from the input voltage Ue via a resistor R1 and via a constant-current source Ts3 and periodically discharged, the sawtooth voltage being preferably compared with the error from the closed loop regulator RV so as to provide further control of keying ratio in dependence on variation in input voltage Ue. As described, each sawtooth voltage developed across Cr is terminated by a pulse generator T which periodically turns on a discharging transistor Ts2. The comparison is achieved by a Schmitt trigger S feeding an AND gate M the output of which is coupled via a driver LV to the chopping transistor Ts1.
Patent GB-1202407-A (GB)
Title: Improvements in cutting dies
IPC: B21D5/01
Filed: 1967-11-21
Abstract: 1,202,407. Press knives. SANDVIKENS JERNVERKS A.B. 21 Nov., 1967 [25 Nov., 1966], No. 52989/67. Heading B4B. A press knife having a cutting edge only on one edge and having the other edge shaped as a lateral back surface to take up the punching pressure is characterized in that the knife has its thickest portion around the middle portion vertically and in that the section of the knife from the thickest portion gets thinner towards the cutting edge as well as towards the back surface. In one form, the thickest portion 30, Fig. 4, has parallel sides 31, 32 and the length A of the tapering side 39 of the back portion 37 is at least about as long as the length B of the cutting edge portion 33 including bevel surface 36. The portion 33 has cutting edge surfaces 34, 35. The decrease in thickness C of the portion 37 is small e.g. 0À2 mm. to 0À4 mm. The portion 37 may also have a tapering side 40. The width of the back surface 38 is at least 0À75, preferably at least 0À80, and at most 0À95, of the largest thickness of the knife. In another form, the surfaces 36, 39 meet at a point 51, Fig. 5, and a bevel surface 50 is situated between the cutting edge surface 34 and the side surface 31.
Patent GB-1401485-A (GB)
Title: Vehicle support system
IPC: B61B7/00
Filed: 1972-11-16
Abstract: 1401485 Elevated railways P PATIN 16 Nov 1972 [16 Nov 1971] 53012/72 Heading B7L An elevated railway support system comprises a catenary suspension formed by a carrying cable 2 secured to pylons 1a, 1b &c. and provided at intervals along its length with hanger bars 4a, 4b, 4c &c. carrying at their lower ends a substantially rigid track 6, 7 (forming a Vierendeel beam with rails 6 and 7 interconnected by C-shaped brackets 5a, 5b, 5c &c.) for suspended vehicles. The rails 6 and 7 are parallel one above the other and are bolted to the brackets 5a, 5b, 5c &c. which are in turn fastened to respective hanger bars 4a, 4b, 4c &c. These bars vary in length according to their distance from successive pylons so that the rails 6, 7 are substantially straight. The rails 6, 7 are tubular and successive sections thereof are connected by a tubular pin element (25), Fig. 8 (not shown), received frictionally and telescopically within the ends of the sections. Traversers and points for the system are described with reference to Figs. 12-17 (not shown).
Patent GB-1390180-A (GB)
Title: Apparatus for mixing ingredients of synthetic plastics compositions
IPC: B01F27/73
Filed: 1971-11-19
Abstract: 1390180 Mixing apparatus COWIE & RIDING Ltd 9 Nov 1972 [19 Nov 1971] 53767/71 Heading B1C Mixing apparatus for mixing constituents of synthetic plastics material comprises a plurality of coaxial mixing chambers 14, 15, 16 through which the constituents pass in sequence, each chamber being substantially wholly occupied by a rotary mixing member 23, 24, 25 all of which are mounted on a common shaft 21 for rotation therewith. The mixing members are provided with concentric rungs of axially extending projections 29 which interengage with corresponding projections 30 on the inner walls of the mixing chambers. The constituents are supplied through port 31 at one end of the apparatus in the vicinity of the shaft support, and subsequently by way of passages 32, 33 to the projections on one side of the first mixing member 23 and thereby radially through the projections, around the outer peripheral chamber 34 and thence radially inward to be passed into the next chamber 15 by way of passage 19. The constituents are moved in a similar manner through all the chambers and ultimately through an outlet in the boss 13 concentric with the shaft 21 axis. Additives may be supplied to the constituents as they pass through the chambers at such places as ports 35 and 36. Although three coaxial chambers are shown with respect to the embodiment described two chambers only or more than three may be used. Coolant may be supplied to cavities formed between any two chambers.
Patent GB-1401418-A (GB)
Title: Plastics composition
IPC: C08L7/00
Filed: 1971-11-24
Abstract: 1401418 Degradable thermoplastics compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 27 Oct 1972 [24 Nov 1971] 54566/71 Heading C3P Degradable thermoplastics compositions comprise 0À001 to 40 weight per cent of prodegradant comprising (1) a free carboxylic acid of formula RCOOH where R is a hydrocarbon group with up to 30 C atoms and (2) a carboxylic acid salt of a metal of atomic number 22-29, present in such proportions that the free acid constitutes 10 to 95 per cent of the weight of acid and salt. Specified thermoplastics are polymers of ethylene, propylene, butene-1, 4-methylpentene- 1 and/or styrene, optionally together with vinyl chloride, vinyl acetate, methyl acrylate, methyl methacrylate, acrylic acid, methacrylic acid or hydroxyethyl methacrylate. Examples describe compositions comprising polyethylene, ferric stearate, stearic acid and optionally 2,6-di-t-butyl-4-methylphenol, or benzoic, pelargonic, lauric, oleic, linoleic or behenic acid; comprising polyethylene, manganese stearate and stearic acid; and comprising ethylene/vinyl acetate copolymer, polypropylene stabilized with calcium stearate and 2,6-di-t-butyl-4-methylphenol or ethylene/ methacrylic ionomer resin together with ferric stearate and stearic acid.
Patent GB-1338800-A (GB)
Title: Amides and their use in antiseptic detergent compositions
IPC: C11D3/48
Filed: 1971-11-24
Abstract: 1338800 Substituted amides MONSANTO CO 24 Nov 1971 [25 Nov 1970] 54615/71 Heading C2C [Also in Division A5] Substituted amides of the general formula in which n and m are each 0 or 1 provided that the sum of n and m is at least 1; a and b are each 0 or 1 provided that the sum of a and b is at least 1 and provided that when n is 0, a is 0; and X 1 , X 2 , X 3  and X 4  are each a chlorine or a bromine atom are prepared by (a) when n is 0 and m is 1 reacting a dihalogenated benzylamine of the formula with a dihalogenated benzoyl chloride of the formula and (b) n is 1 and m is 0 or 1, by reacting a dihalogenated phenyl-acetate of the formula in which R is a radical derived from an alcohol or phenol with a dihalogenated amine of formula V Compounds claimed per se are N-(3,5-dichloro- 2-hydroxybenzyl)-3,4-dichlorobenzamide; N- (3,4 - dichlorobenzyl) - 3,5 - dichloro - 2- hydroxy-phenylacetamide; N-(3,5-dichloro-2- hydroxybenzyl) - 3,5 - dichloro - 2 - hydroxyphenylacetamide; N-(3,4-Dichlorophenyl)-3,5-  dichloro-2-hydroxy-phenylacetamide. The compounds have antiseptic properties.
Patent GB-1438989-A (GB)
Title: Process for the purification of formaldehyde
IPC: C07C47/058
Filed: 1973-11-27
Abstract: 1438989 Purification of formaldehyde ASAHI KASEI KOGYO KK 27 Nov 1973 54922/73 Heading C2C Formaldehyde containing impurities (especially water, methanol and formic acid) is purified by scrubbing gaseous formaldehyde at 100‹ to 160‹ C. with at least one polyoxyethylene ether polyol ester of the general formulµ where R is a C 1 -C 3  alkyl group, R<SP>1</SP> is hydrogen or a methyl group, m is an integer from 2 to 5 and n is an integer from 1 to 13, and the n's in one molecule may be the same or different. The scrubbing liquid may be prepared by polymerizing ethylene oxide in the presence of a polyhydric alcohol RC(CH 2 OH) 3 , C(CH 2 OH) 4  or R<SP>1</SP>(CHOH) m CH 2 OH, and esterifying the terminal hydroxy groups of the product; preferred compounds are obtained from glycerin, pentaerythritol, sorbitol, trimethylol propane and trimethylol butane and preferred molecular weight (sum of oxyethylene units in a molecule) 200-2000. A counter-current method of operation is preferred, using a suitably packed column at 1-5 kg./cm.<SP>2</SP> pressure. The scrubbing liquid may be regnerated by stripping with an inert gas at atmospheric or reduced pressure.
Patent GB-1445473-A (GB)
Title: Ore pellets suitable for reductive roasting
IPC: C22B34/12
Filed: 1973-11-28
Abstract: 1445473 Roasting of ores 1CI AUSTRALIA Ltd 28 Nov 1973 [4 Dec 1972 2 March 1973 12 June 1973] 55148/73 Heading C7D [Also in Division C1] A reductive roasting process is characterized by the provision of the ore in the form of pellets containing sufficient solid carbonaceous material to metallize the iron values within the ore together with a flux, the core of the pellets being surrounded by a matrix of coke, and the pellets thereby retaining their shape throughout the process so that the product is discrete pellets of reduced ore set in the coke matrix. The ore may be ilmenite, low-grade manganese ore, a vanadiumniobium or tantalum-containing slag or concentrate or a chromite ore concentrate; the flux is preferably sodium chloride and/or potassium chloride. The process is particularly applicable in the beneficiation of oxide materials by removal of the iron values as metallic iron. The pellets are initially produced by coating the ore with a coke precursor e.g. coking coal, and heating.
Patent GB-1245194-A (GB)
Title: An apparatus for connecting pipe sections together
IPC: F16L1/09
Filed: 1969-11-11
Abstract: 1,245,194. Pipe jointing tools. GEWERKSCHAFT EISENHUTTE WESTFALIA. 11 Nov., 1969 [17 July, 1969], No. 55164/69. Heading F2G. A tool for joining a pipe section la to other pipe sections 1b ... 1f comprises a twin hydraulic ram 3 pressing a beam 4 against pipe la and having a beam 5 connected by chains (10) and a cable 11 to a beam 7 at the other end of the other pipe sections. As beam 5 is held against leftward movement by the chains (10) and cable 11, operation of the ram 3 causes beam 4 to press pipe la against pipe 1b. The pipe joint is a spigot and socket separated by a rubber sealing ring (2), Fig. 5 (not shown). After jointing, the ram 3 is retracted and cable 11 is payed out from a spool 8 ready for the insertion of another pipe section. This method is used for connecting concrete pipes in an open-topped excavated trench.