baber/WOPTO huggingface dataset:
Patent GB-550325-A (GB)
Title: Improvements in or relating to the treatment of smokeless powder
IPC: C08B5/10
Filed: 1941-06-30
Abstract: 550,325. Cellulose nitrate. DU FONT DE NEMOURS & CO., E.I. June 30,1941, No. 8189. Convention date, June 28, 1940. Drawings to Specification. [Class 2 (ii)] Smokeless powder, particularly that which has deteriorated and become discoloured as the result of long storage, is rendered suitable for use in making lacquers and coating compositions by heating it under pressure to a temperature above 105‹C. in aqueous ethyl alcohol and continuing the heating until the viscosity of the cellulose nitrate has been reduced to a value below 3,300 centipolses, preferably below 200 centipoises. The viscosity value is expressed as the viscosity in centipoises at 25‹C. of a solution of the smokeless powder having the composition : smokeless powder 15 per cent, ethyl alcohol (95 per cent. by volume) 17 per cent., toluol 25.5 per cent., ethyl acetate (99 per cent. by weight) 42.5 per cent. The strength of the aqueous ethyl alcohol is maintained at such a value that the solvent action on the cellulose nitrate is low, but that the solution has an effective colour-removing power. The time of treatment required is reduced to a great extent for a small rise in temperature but the temperature should preferably be not higher than 120‹C. The strength of the ethyl alcohol should not be above 80 per cent. and preferably it is within the range of 65-80 per cent. by volume. During the treatment, the non-condensible gases which are formed may be continually vented by opening a valve in the dome of the autoclave. The treatment may be carried out in stages, fresh ethyl alcohol solution being used in each stage. Badly deteriorated powder may be subjected to a stabilizing treatment with ethyl alcohol prior to the treatment to reduce viscosity and remove colour. During the viscosity-reducing treatment fresh alcohol may be continuously fed into the apparatus and an equivalent amount of contaminated alcohol may be continuously removed. The process may be carried out by first heating the material under pressure at 105-120‹C. until the viscosity has been reduced to the desired extent, using alcohol of 65-80 per cent. strength and then completing the removal of colour by heating at 100‹C. with fresh alcohol. The treated material may be dehydrated with 95 per cent. alcohol.
Patent GB-1174817-A (GB)
Title: Telescopic Tubular Fittings
IPC: F16L27/08
Filed: 1967-02-22
Abstract: 1,174,817. Pipe joints. HOOVER Ltd. 22 Feb., 1967 [24 Feb., 1966], No. 8367/67. Heading F2G. A coupling between tube parts 22, 19, such as a tube of a clearing tool and a vacuum cleaner socket, comprises a locking ring 41 which is axially split at 57 to permit to be transversely sprung on to tube part 19 and which is axially located between the sides of an external peripheral groove 29 of the tube part 19 to be rotatable thereon between two extreme positions defined by stop surfaces 54, 55 and 52, 45 on the tube part 19 and ring respectively, a lug 37 on the end of tube part 22 which is adapted to pass through axially extending slots 34, 43 in the tube part 19 and ring which are aligned when the ring is rotated to one of the extreme positions, and an inwardly-projecting circumferentially-tapering cam part 50 on the ring which engages behind the lug when the locking ring is rotated towards the other of said positions to draw the lug 50 against an abutment recess in the tube part 19. The tube parts and the ring are preferably of plastics material. The stop surfaces on the tube part 19 are defined by the end walls of a circumferentially extending recess in the base of the groove 29. The lug is formed of frusto-conical shape and corresponds to the co-acting face 56 of the ring cam part 50,
Patent GB-766098-A (GB)
Title: Impression counter for multicolour printing machines
Inventor: SCHUENEMANN HANS BERNHARD
IPC: B41F33/02
Filed: 1955-03-22
Abstract: 766,098. Counters for printing machines. SCHNELLPRESSENFABRIK KOENIG & BAUER AKT.-GES. March 22, 1955, No. 8382/55. Class 100(2) A counter for a multi-colour printing machine having several printing units is controlled in such a manner that it is dependent upon the operation of all the printing units and discontinues counting as soon as any one of the printing units becomes inoperative. This arrangement prevents sheets being counted which are incompletely printed. Each printing unit is provided with an electric switch adapted to close when the unit is started and to open when it becomes inoperative. The switches are connected in series between an impulse generator and an electric pulse counter. When all the switches are closed a pulse is recorded on the counter for each printing operation of the machine. The switches may be individually short-circuited by manually operable switches so that when certain units are not in use, the impulses may still be transmitted to the counter through the switches of the remaining printing units. Instead of using an electric pulse counter, a mechanical counter may be used actuated by a solenoid energized by the pulses.
Patent GB-906574-A (GB)
Title: Injection instrument
IPC: A61M5/31
Filed: 1961-03-08
Abstract: 906,574. Surgical injection appliances. GERMANY, FEDERAL MINISTER OF DEFENCE. March 8, 1961 [March 29, 1960], No. 8431/61. Class 81 (2). For self-administered injections a closed body 1, of flexible plastic material, encloses a bellows-like ampoule 6 carrying a double-ended hypodermic needle 9. When released, by disengaging lugs 13 by distortion of the body, a spring 4 first drives the ampoule and needle downwards so that the needle passes through a portion 11 of reduced thickness into the flesh of the user, and then forces a plug 8 into the recess in the end cover 7 so that the needle perforates the reduced portion 12 and the ampoule is compressed to expel the contents.
Patent GB-1038804-A (GB)
Title: Improvements in flat warp knitting machines
Inventor: PORTER ALLAN WILLIAM HENRY
IPC: D04B35/00
Filed: 1964-02-28
Abstract: 1,038,804. Knitting-machines. HOBOURN AERO COMPONENTS Ltd. Feb. 11, 1965 [Feb. 28, 1964], No. 8448/64. Heading D1C. A temperature differential is maintained between the needle bar 14, 15, tongue bar 22, 23, sinker bar 28 and thread guide bars 33 by heaters located in all but the thread guide bars 33 and controlled by a wheatstone bridge circuit. Two arms of the bridge are formed by resistance thermometer wires 48, 45 located in the thread guide bar 33 and any one of the other three bars respectively. The temperature difference is preset by the variable resistance 54 so that the bridge is balanced at that temperature difference. A differential amplifier 57 measures the out of balance current and operates the heater switches to raise the temperature of the heated beds. In the event of an excess temperature differential a safety differential amplifier 56 operates an alarm system and stops the machine.
Patent GB-925888-A (GB)
Title: Production of dehydrated potato granules
IPC: A23L19/15
Filed: 1961-03-08
Abstract: 925,888. Dehydrated potatoes. J. & J. COLMAN Ltd. March 8, 1961 [March 16, 1960], No: 8530/61. Class 49. In a process for preparing dehydrated potatoes, cooked potato mash is subjected to repeated mild compression and mild shear forces until the mash is connected into a bulky, loosely coherent mass of unicellular particles and small aggregates of unicellular particles and is then subjected to final drying. Raw potatoes are prepared preferably as described in Specification 925,886, cooked preferably as described in Specification 925,887, and are conditioned, mashed and partially dried as described in Specification 925,886. The mash is then granulated and dried in a device, Figs. 1 and 2, which comprises a trough 22 with a removable lid 23 and a shaft 24 which is rotated at a low speed and to which are attached a series of arms 25 with rearwardly slanted paddles and arms 27 with flexible blades 28. The base of the trough 22 may have wires welded longitudinally along it. A conduit 29 serves to introduce gases, e.g. drying air. Final drying of the granulated product may be effected by passing hot air at such a velocity through the conduit 29 that it carries the dried potato particles out through an exit conduit 30 to a collecting chamber. In another embodiment, Fig. 4, a rectangular frame 35 supporting a fine mesh screen 36 is connected to a vibrator 37. Shafts 38 bearing paddles 26 and blades 28, of similar construction to those in the embodiment of Figs. 1 and 2, are fitted. Specification 542,125 also is referred to.
Patent GB-232206-A (GB)
Title: Manufacture of esters of 4-oxy-piperidine derivatives
IPC: C07D211/46
Filed: 1925-04-01
Abstract: Substances possessing anaesthetic properties are prepared by esterifying an N-aralkyl-4-oxypiperidine or a C-substitution derivative thereof having the substituent in the piperidine ring. Examples are given of the preparation of the benzoic and mandelic acid esters of 2 : 6-dimethyl-N-phenyl-ethyl-4-oxypiperidine. N-Aralkyl-4-oxypiperidines are obtained by the action of an aralkyl halide on g -pyridone or a substitution derivative thereof, followed by reduction.  Thus, 2 : 6-dimethyl-N-phenylethyl-4-oxypiperidine results when the product of the action of phenylethyl bromide on lutidone is reduced with sodium and alcohol.
Patent GB-398897-A (GB)
Title: Arrangement for controlling switching operations in telephone plants by means of alternating current impulses
IPC: H04M7/10
Filed: 1932-03-24
Abstract: 398,897. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. March 24, 1932, No. 8847. Convention date, March 26, 1931. [Class 40 (iv).] An inter-exchange connection is held by a relay at the outgoing end of the junction operated in response to a backward A.C. impulse when the called party replies and released by a further A.C. impulse when the called party replaces his receiver, a long A.C. impulse being then sent forward over the junction, if or when the calling party has hung up his receiver, to release the distant apparatus. As described, a calling line 33, 34 in exchange A is connected over a finder switch AS to junction 23, 24, the connection being completed over group and final selectors (not shown) at the distant exchange B. Line relay R1 pulls up and operates R4 whereupon the finder hunts for the line and switching relay R5 pulls up. Impulses are repeated by R1 to R6 which repeats them over operated contacts of slow releasing relay R8 to R12 which sends A.C. impulses over the junction to set up the connection. The impulses are received by relay R15 associated with rectifiers 14 .. 17. On receipt of the first impulse at exchange B, R16 pulls up and back-stroke magnet SM2 of sequence switch S2 moves the switch to position 2 in which R16 holds and connects holding battery over the upper cam of the switch to the outgoing c wire. When the called party replies, R18 pulls up and S2 moves to position 4. In passing position 3, the switch operates R13 which sends an A.C. pulse to exchange A to operate R10 whereupon sequence switch S1 steps to position 2 in which R3 is operated to complete a further holding circuit for R4. When the called party replaces his receiver, R18 relapses, sequence switch S2 goes to position 6 and in passing 5 operates R13 to send back an A.C. pulse to operate R10 which sends S1 to position 3. R3 falls back, and, if R1 has been released by the calling party, R4 falls back and releases finder AS. When R5 relapses, sequence switch S1 goes to position 1 and in positions 4 .. 8 operates R12 which sends a long A.C. pulse to exchange B to ensure the release of R16. Sequence switch S2 goes to position 1 and the consequent removal of battery from the c wire releases the switch train at exchange B.
Patent GB-591946-A (GB)
Title: Improvements in spark gaps
IPC: H01T4/12
Filed: 1944-05-10
Abstract: 591,946. Spark-gaps. JONES, F. L. May 10, 1944, No. 8868. [Class 39 (i)] [Also in Group XXVII] A spark-gap arrangement operating on pulses of E.M.F. of alternating polarity comprises one or more envelopes 3, Fig. 1, containing gas, each envelope 3 having therein at least two plate electrodes 4, 5 disposed parallel to one another and providing two conducting paths for the electrical impulses, one path being sensitive to impulses of one polarity and the other path being sensitive to impulses of the opposite polarity, the sparking potential of both paths being substantially equal. Two pairs of electrodes 4, 5 may be connected in parallel in opposite sense, the electrodes 4 being of tungsten and the electrodes 5 of titanium oxide, aluminium oxide or magnesium oxide sintered on to the tungsten.. Alternatively. the electrodes 5 may be " formed " as described in Specification 582,938. In a modification, Fig. 2 (not shown), each pair of electrodes 4, 5 is enclosed in a separate envelope. Two pairs of gaps in parallel may be used, one pair of gaps being sensitive to impulses of one polarity and the other pair of gaps being. sensitive, to impulses of the other polarity. In a further modification, two composite electrodes only are used, one comprising a circular oxide portion 8, Fig. 7, surrounded by an annular tungsten portion 7 and the other comprising a circular tungsten portion 9, Fig. 6, surrounded by an annular oxide portion 10. The line of junction between the parts of each composite electrode may be undercut to prevent sparking along this line. Nitrogen gas is used as a filling. Specification 582,932 also is referred to. The Provisional Specification states that the sparkgaps may not be enclosed and refers to a further polarity sensitive spark-gap arrangement comprising two pairs of electrodes, each pair being made up of two concentric cylinders, The spark-gap arrangements may be used in the high-frequency ignition system of an internalcombustion engine in an automobile or aircraft, or in various radio circuits.
Patent GB-1215545-A (GB)
Title: Composite conductor for electrical alternating-current apparatus
IPC: H01B7/30
Filed: 1968-02-23
Abstract: 1,215,545. Transformers and inductors. LICENTIA PATENT - VERWALTUNGSG.m.b.H. 23 Feb., 1968 [24 Feb., 1967], No. 8931/68. Heading H1T. A composite conductor for transformers, inductors and similar apparatus comprises a plurality of individual conductive elements a, b and c, which are twisted together so that each conductor element takes up all conductor positions in the cross-section of the composite conductor characterized in that the direction of twist reverses after a length A in which all conductor elements have passed at least once through each position in the cross-section of the composite conductor. Normally the number of individual twists in each direction will be equal, and reversion of direction of twist will be after one or a multiple of complete interchanges of the elements. The conductor elements may themselves be composite conductors.
Patent GB-921319-A (GB)
Title: Azo dyestuffs of the benzene and naphthalene series containing triazine rings
IPC: C09B62/53
Filed: 1960-03-14
Abstract: The invention comprises dyes of formula <FORM:0921319/IV(a)/1> where A and B are benzene or naphthalene residues, R is CH2CH2OSO3X or NHR1OSO3X X is H or an alkali metal, R1 is a straight or branched chain bridge member with 2 or 3 C atoms between N and O, R6 is H or alk, R7 and R8 are OH, NH2 or substituted NH2, n is 1 or 2, m 0 or 1 and p 1 or 2, and R5 is H, alk or Oalk, substituent NR6 being attached to B para to the azo group.  R7 and R8 may themselves be derived from the aminoazo dye represented by A B.  The dyes may be made from corresponding sulphonic acids by converting the SO3H groups to SO2R groups by usual processes.  The sulphonic acids are made by conventional diazotization and coupling processes to give an amino azo dye which is reacted with cyanuric chloride to yield a dichlorotriazine, the halo atoms of which are replaced by R7 and R8. Alternatively the RO2S groups may be formed in the amino azo dye before reaction with cyanuric chloride.  Amongst specified diazo components are aniline-3-sulphonic acid and 2-naphthylamine 4,8-disulphonic acid.  Amongst specified coupling components are 2-methoxy- and methyl-aniline, 2,5-dimethoxyaniline, 1-naphthylamine and its 7-sulphonic acid and N-ethylaniline.  Representative of specified substituted amines from which R7 and R8 may be derived are methylamine, dimethylamine, hydroxyethylamine, aniline and naphthylamine sulphonic acids.  The dyes colour hydroxyl-group containing material especially natural and regenerated cellulose. The colouring processes are effected in the presence of acid-binding agents.  Nitrogenous materials, e.g. wool and silk, may be coloured by conventional processes.  Examples are provided of the preparation of the dyes and their use in colouring cotton in reddish-yellow shades.  Reference has been directed by the Comptroller to Specifications 733,471, 779,781, 837,750 and 854,158.
Patent GB-474665-A (GB)
Title: Illuminated displays
IPC: G09F13/00
Filed: 1936-03-26
Abstract: 474,665. Displaying. VIBRA-LITE, Ltd. March 26, 1936, No. 8989. Convention date, May 13, 1935. [Class 3 (i)] An animated or moving light effect is produced by colouring an object or a representation thereof with pigments 132-136, Fig. 11, gradationally varied in respect of hue, brightness, or purity, and illuminating the whole of said object or representation by coloured light which is made up of a continuous illumination by light of one colour, and an intermittent or cyclically varying illumination by light of another colour or colours. The apparatus employed may be that described in Specification 470,005, with a modified form of shutter mechanism which is shown in Fig. 7. In this arrangement the colour filter 104 has twelve sectors, four of which, 106, forming a cross, are of one colour, say red, four, 107, of another colour, say green, and four, 108, of a third colour, say blue. A cross-shaped obturator pivoted at 110 is adapted to be oscillated by a bell-crank 92 to cover alternately all the green and all the red, the blue filters remaining continuously in action.
Patent GB-550868-A (GB)
Title: Improvements in exhaust silencers for internal combustion engines
IPC: F01N1/16
Filed: 1941-07-16
Abstract: 550,868. Exhaust silencers. MILLENER. H., and FAIRMILE MARINE CO., Ltd. July 16, 1941, No. 8999. [Class 7 (ii)] An exhaust-silencer comprises a cylindrical chamber 1, Fig. 2, having an inclined inlet pipe 2 for the gases, with a downward bend 3, and an outlet pipe 4 in line with the inlet pipe, the gases being allowed either to pass straight through the pipes 2, 4, or to be diverted through the branch 3 into water in the bottom of the chamber, according to the position of a slide valve 5 operated by a handle 9.
Patent GB-400843-A (GB)
Title: Packing for eggs and the like
IPC: B65D85/32
Filed: 1933-03-25
Abstract: 400,843. Boxes for eggs &c. LEVINE, H., 2151N, Uber Street, Philadelphia, U.S.A. March 25, 1933, No. 9006. [Class 18.] A packing for eggs &c. of the type in which an incised flat cardboard blank is folded to form a box of approximately W-shaped cross section with two rows of compartments separated by transverse walls, is characterized by the provision, in the top edge of the roofshaped bottom 13, of triangular incisions 22 having a nose 24 projecting into them, the transverse walls 15 having holes 26 disposed in such a manner that when the box is folded together the noses 24 will slip into the holes 26 and the box will be locked in the folded state. The incisions 22 have extensions 23 which may be slightly wider than the thickness of the walls 15 so as to allow lateral shifting of the walls to accommodate eggs of different sizes. The corners 27, which as shown protrude through slots 25 in the sides walls 11, 12, may be made integral with these walls by cutting the blank along the dotted lines 32, in which case the parts 19 together with the pointed portions thus attached to them may be painted to represent chickens' heads. A lid 28 is held in position by the edges being formed with tongues adapted to be introduced into the spaces 18. In place of the arrangement shown, in which the strip 20 is to be pasted or otherwise attached to the part 11, that part to the left of the line 7 may be formed on the righthand side of the blank so that the lines 10, 21 coincide, the bottom part 13 then consisting of two half portions held together by the transverse parts.
Patent GB-265810-A (GB)
Title: An improvements in or relating to brick-making machines
IPC: B30B11/12
Filed: 1926-04-06
Abstract: 265,810. Fawcett, Ltd., T. C., Fawcett, D. L., and Bottomley, A. E. April 6, 1926. Cylinder machines. - A brick-making machine comprising a mould drum a is provided with means for adjusting the length of stroke of the toggle-actuated plunger b. The outer end of the link d is pivoted to a block g carried by a lever h which turns on a pivot i; as the road c is raised, the free end of the lever h bears against an adjustable stop j. By arresting the lever h early in its swing, the outward stroke of the plunger is increased, and vice versa; more or less material is thus fed from the hopper which is placed above the plunger. The block g normally bears against a fixed abutment f. The stop may be adjusted by a screw k or by wedges, and the lever h may be inverted and may be weighted or assisted in its fall by a spring. To ensure prompt movement of the plunger away from the drum, the inner end of the link d is provided with runners d<3> which bear against guides n.
Patent GB-199500-A (GB)
Title: Improvements in mechanism for opening and cleaning cotton and like fibrous substances
IPC: D01G9/00
Filed: 1922-03-30
Abstract: 199,500. Taggart, W. Scott-. March 30, 1922. Openers, cleaners, &c.-In a machine in which the cotton &c. is passed from side to side of a casing and treated by a rotary beater, the space provided for the treatment of the material gradually diminishes from the feed end to the exit. The enclosure K in which the beater A rotates may be in the form of an oblique cone as shown, the material being fed in through an opening L and passing out at M. The beater may be conical in form, with its small end at the feed end of the casing, the upper portion of the casing being cylindrical in form, and the lower part conforming to the shape of the beater. Suction may be applied through the rotary cages at the exit end or a current of air may be supplied near the entrance L to assist the material to pass through the machine.
Patent GB-1483722-A (GB)
Title: Converter system
IPC: C10B7/06
Filed: 1976-03-08
Abstract: 1483722 Incinerators; treating refuse K M KEMP 8 March 1976 09165/76 Heading F4B [Also in Division C5]  A converter system 10 for converting organic, pseudo-organic and inorganic materials including waste, includes an elongated housing 11 defining a longitudinally extending material treatment chamber 79 with an endless conveyer 30 carrying waste W 2  therethrough and driven by means 35. Heating means, e.g. 85 in upper combustion chamber 80 fed with fuel and air serve to heat and beak down waste W 2  through radiant heat transmitted through barrier 78. The products created in chamber 79 are drawn into troughs 81 and liquids are collected in containers, e.g. 44 while gases and vapours pass to condenser 54 where further condensation occurs. Uncondensed fluids pass via gauge 56 and regulator valve 55 to gas scrubbers 58, 60 containing, e.g. excelsior and activated carbon. A stream of combustible gas passes via booster pump 62 to combustion chamber 80.