baber/WOPTO huggingface dataset:
Patent GB-220413-A (GB)
Title: Improvements in processes for the purification of burner gases and for obtaining chemically pure sulphuric acid
IPC: C01B17/76
Filed: 1923-06-13
Abstract: Burner gases are purified for the production of pure sulphuric acid by separating dust and then passing them through a washing apparatus, such as a tower in which they come in contact with water or dilute sulphuric acid, at such a rate that the vaporization and condensation occurring in the washer is not such as to remove the suspended matter from the gases, but only such as to increase the size of the suspended particles so that they can be readily separated in an electric precipitator.  The suspended matter, particularly selenium, is thus obtained in a concentrated form in the precipitator instead of as a sludge in the washer. The sulphur trioxide produced catalytically from the purified gases is separated as sulphuric acid in a similar manner by passing the gases first through the washer and then through the electric precipitator.  Reference has been directed by the Comptroller to Specifications 21147/07, 109,106, 119,236, 136,464, and 144,701.ALSO:Burner gases are purified for the production of pure sulphuric acid by separating dust, then passing through a washing apparatus such as a tower in which they come in contact with water or dilute sulphuric acid at such a rate that the vaporization and condensation occurring in the washer is not such as to remove the suspended matter from the gases but only such as to increase the size of the suspended particles so that they can be readily separated in a separate apparatus, preferably an electric precipitator.  The suspended matter, particularly selenium is thus obtained in a concentrated form in the precipitator instead of as a sludge in the washer.  The sulphur trioxide produced catalytically from the purified gases, is separated as sulphuric acid in a similar manner by passing the gases first through the washer and then through the electric precipitator.  Reference has been directed by the Comptroller to Specifications 21147/07, and 109,106, 119,236, 136,464, and 144,701, [all in Class 1 (i), Chemical processes &c.].
Patent GB-729567-A (GB)
Title: Improvements relating to resilient clamping apparatus
Inventor: AINSCOUGH THOMAS
IPC: H05K7/12
Filed: 1952-06-19
Abstract: 729,567. Clamps. METROPOLITANVICKERS ELECTRICAL CO., Ltd. May 6, 1953 [June 19, 1952], No. 15490/52. Class 44. A resilient clamp, for clamping a device, e.g. an electrical component to a support, comprises a resilient metal tensioning member formed at one end with a hook or claw adapted for carrying the device and at the other end secured to a holding member provided with a screw threaded attachment means whereby it is adjusted to be drawn against the support, said tensioning member being formed intermediate its ends with at least one bend, loop, or like formation to give it longitudinal resilience between its ends. As shown the tensioning member in the form of a metal strip 4 is provided with one or more loops 5, a hooked and bifucrated end 6 to engage the rim of the component, e.g. electrical condenser, and an end 7 curved around a rod holding member 8. The end 7 is crinkled to hold the member 8 in position. The rod 8 is pulled towards the support base or chassis 1 by a screw 9 which also passes through apertures in the strip. Two or more clamps may be provided to secure the component to the base. Instead of a rod 8, the holding member may be constituted by a loop formed at the end of a threaded rod passing through the base or by a U-shaped rod with both ends threaded and passing through the base.
Patent GB-1367591-A (GB)
Title: Transesterification process
IPC: C07C69/54
Filed: 1973-03-30
Abstract: 1367591 Methacrylic acid esters RHONEPROGIL 30 March 1973 [17 May 1972] 15558/73 Heading C2C Transesterification of a methacrylic acid ester with an alcohol (3-22 C), the alcohol of the ester having a lower boiling point than the reactant alcohol is performed in the presence of both a titanium alcoholate catalyst and dinaphthylphenylene diamine polymerization inhibitor. Titanium isopropylate is preferred and air may be bubbled through the reaction, a temperature range of 95 to 110 C. is preferred with an auxiliary liquid such as hexane present. Examples describe the transesterification of methyl methacrylate with n-octanol, a distillation wt. of C 12  n-alkanols and C 14  n-alkanols, n-butanol and a C 16 -C 18  alkanol wt.
Patent GB-334616-A (GB)
Title: Improvements relating to the combustion chambers of internal combustion engines
IPC: F02D15/04
Filed: 1930-02-18
Abstract: 334,616. Fraser, R. P. Feb. 18, 1930. Cylinders, adjusting clearance in, combustion chambers of, and baffles for.-Cylinder clearance is adjusted by a supplementary piston 3 which is loaded by fluid pressure in a chamber 6, and means for ensuring that the compression-ratio is increased as the speed increases comprises a vent pipe 16 having a valve 20, which is closed when the throttle valve is opened by depression of the accelerator pedal 19. The fluid pressure may be built up, by combustion products admitted from the combustion chamber 8 by a non-return valve 15 and a pipe 7, or compressed air from a storage vessel. A heavy-oil seal may be provided above the piston 3 and a, projection 11 arranged to act as a dash-pot; a conical part 4 seals the piston when in its lowest position and in a multicylinder engine the pressure chambers 6 over the separate cylinders are connected by passages 22. The chambers 6 have safety valves, and in a modification the piston is arranged over the passage between the valves and the cylinder, so that when in its lowest position, it baffles the inflow of the charge.
Patent GB-128585-A (GB)
Title: Improvements in or relating to Gun Carriages with Endless Tracks.
IPC: F41A27/22
Filed: 1919-06-20
Abstract: 128,585. Schneider et Cie. March 30, 1918, [Convention date]. Field carriages; recoil apparatus.-Relates to endless-track field carriages adapted to pivot around the trail spade for training. According to the invention, the connexion between the trail A and the trucks J, K of the endless track is such that the trucks receive a rectilinear transverse movement while the trail moves in an arc (shown by dotted lines in plan in Fig. 2) about the training-pivot X on the spade platform L. The invention also comprises a universal joint connexion a, a<1>, a<3>, L<2> between the trail and the platform L to allow for differences of level between the endless tracks and the platform. The front end of the trail is trunnioned at D in a pedestal E eccentrically and rotatably mounted in a bearing F in a saddle G. The saddle is rotatable on the under-carriage I by a worm-gear w<1>, g actuated by handles U on a shaft S mounted in the trucks J, K. Sprocket wheels R loose on the shaft S may be clutched to the handles; they then propel the trucks on the endless tracks through the chain and sprocket gear Q, P, O. The endless tracks may be laid out flat, as shown, or used in the ordinary way.
Patent GB-1489943-A (GB)
Title: Apparatus for handling packets of cigarettes
IPC: B65B19/00
Filed: 1975-04-16
Abstract: 1489943 Conveying and orientating cigarette packets GD SpA 16 April 1975 [17 April 1974] 15624/75 Heading B8A Freshly glued cigarette packets fed from a drum 1 of a packaging machine are displaced by a pusher P together with a column of preceding packets into engagement with opposed conveyer belts 7, 8, by means of which the packets arrive on a higher speed conveyer belt 20. At the upstream end of the latter, they are also engaged by a conveyer belt 23, and by the periphery of a wheel 30 carried by a pivotally mounted arm 31. The packet engaging the wheel 30 is thereby turned about a vertical axis and into a position in which a sealing strip or state revenue stamp (Figs. 1-8, not shown) may be applied. When the wheel 30 is deflected, a microswitch 36 is thereby operated to halt the feed of the packets.
Patent GB-1111064-A (GB)
Title: A process and apparatus for the treatment of crystalline substances
Inventor: HAWKINS SYDNEY RONALD
IPC: C09K3/14
Filed: 1966-04-12
Abstract: <PICT:1111064/C4-C5/1> Sharp edges and corners on industrial diamonds in comminuted form for use as abrasive material are removed by allowing the diamonds to fall downwards through a succession of plasma flames 5 in a torch 1.  The working gas may be argon.  The rate of fall may be decreased by a countercurrent of nitrogen.ALSO:Sharp edges and corners on industrial diamonds in comminuted form for use as abrasive material are removed by allowing the diamonds to fall downwards through a succession of plasma flames 5 in a torch 1.  The working gas may be argon.  The rate of fall may be decreased by a countercurrent of nitrogen. <PICT:1111064/C1/1>
Patent GB-1509985-A (GB)
Title: Process for the manufacture of d-homosteroids
IPC: C07J63/00
Filed: 1976-04-20
Abstract: 3-Oxo- DELTA <4>-19-nor-D-homosteroids are prepared in a process which starts from naphthalenones of the formula <IMAGE> in which R<1> is hydroxyl or tert-lower-alkoxy and R<2> is hydrogen, or R<1> and R<2> together are oxo or a ketal group and R<3> is lower alkyl, and R' is hydrogen, and which results in a first stage in compounds of the formula II in which R' is the radical R<4>SO2CH2, where R<4> is lower alkyl, phenyl, halophenyl, lower alkoxyphenyl, phenoxyphenyl, phenyl-lower-alkyl or lower alkylphenyl. After elimination of a ketal group which is present in these compounds where appropriate, the double bond is hydrogenated. The resulting compounds are subsequently condensed with a 7,7-alkylenedioxyoctan-3-one 1-acid ester and then reacted further to give the corresponding 3,3-alkylenedioxy-4,5-seco-D-homogona-9-en-5-ones. The corresponding 19-nor-D-homosteroids are obtained from these secohomosteroids after hydrogenation, deketalisation and cyclisation of the 3,5-diketones which are formed. The 3-oxo- DELTA <4>-19-nor-D-homosteroids obtained in this way are valuable intermediates especially for the preparation of D-homosteroids with hormonal activity.
Patent GB-577831-A (GB)
Title: Conversion of hydrocarbon oils
IPC: C10G11/18
Filed: 1942-11-11
Abstract: 577,831. Cracking oils. STANDARD OIL DEVELOPMENT CO. Nov. 11, 1942, No. 15979. Convention date, Sept. 13, 1941. [Class 32] In processes for the catalytic conversion of hydrocarbon oils containing substantial amounts of constituents unvaporisable without decomposition, e.g., heavy crudes, gasoils, into motor fuels, the oil is passed upwardly through a cracking zone maintained above 900‹F. in suspension in an active cracking catalyst at such velocity that a dense phase of a catalyst and vapours is maintained, the amount of catalyst being at least two parts by weight per part of oil and sufficient to absorb completely the unvaporisable constituents of the oil which is kept in contact with the catalyst for a period of from 5-50 seconds sufficient to convert at least 30 per cent. of the oil into a gasoline of about 80 octane number. Catalysts specified are activated clays and silica-alumina-magnesia-boric-zirconia gels. The plant comprises cracking and regeneration chambers 27, 59 provided with similarly arranged separation apparatus comprising cyclones 34, 63 steam strippers 46, 65 repressuring hoppers 49, 67, and feed hoppers 52, 69. The cracked vapours pass to conventional recovery apparatus comprising fractionator 36, condenser 38 and gas separator 40 gasoline being recovered through line 41. The contaminated catalyst may be fed through line 61 direct to regenerator 59 or in admixture with regenerating gases through line 58. Similarly the regenerated catalyst is fed direct through line 32 to the convertor 27 or first admixed with the stock in lines 26, 72. When the stock contains gasoline this may be recovered by preheating it in coil 12 and passing it to a separator 15 from which light fractions are removed through line 16. A coil 31 is provided for heating the topped stock to incipient cracking temperatures but the oil may be passed direct to the convertor in which case it is fed through line 75 and preheated by bottoms from the tower 45. Where the catalyst is fed without admixture with the feed to the reactor it is suspended in steam injected through line 74. It is stated that the required conversion temperatures may be maintained in the reactor (a) by heat of catalyst (b) by admission of oxygen containing gases which are burnt with a small proportion of the oil. A reduced crude of 25.7 A.P.I. gravity is distilled to remove 48 per cent. by preheating to 500‹F. and injected into a stream of activated clay heated to 1,000‹F. the equilibrium temperature of the mix being 700‹F. Contacting times of 10, 9.5 and 10.5 seconds and weight ratios of 5, 4 and 3.6 catalyst to oil are employed giving yields of from 38-46 per centof 400‹F. end point gasoline.
Patent GB-500780-A (GB)
Title: Improvements in and relating to printing machines for printing variable items
IPC: B41L45/00
Filed: 1938-05-30
Abstract: 500,780. Printing-machines. LATZ, H., and LATZ, G., (trading as LATZ SERVICE, H.). May. 30, 1938, No. 16093. Convention date, July 2, 1937. [Class 100 (ii)] Addressing and like machines.-In machine for printing variable items, wherein type slugs 54 of an intermittently-advanced supply are successively fed to a reciprocating member 41 on which each one in turn is held during printing, the member 41 comprises a fixed wall 55 and a movable wall 56 carried, for instance, by a spring-pressed arm 57 between which the slugs are clamped, either or both walls being grooved or otherwise adapted to receive types 61, 63 to print constant items. A platen 17 is reciprocated in a vertical guide 14 by a lever 25 rocked about a pivot 26 by a rotary cam 29, the member 41 being reciprocated in a similar manner by a cam-operated lever 44, and an arm 65 being rocked about a pivot 66 so as to engage under the carrier and take the printing pressure. The type-bars 54 are stacked vertically in an horizontal shoot 78 and are pushed through a guide slot 79 on to the carrier 41 by a slide 89 reciprocated on guides 82, 84 by an arm 91 oscillated about a pivot 92 by a rotary cam 102. The connection between the arm and the slide includes a pivoted spring-pressed latch which yields in case of obstruction to the movement of the slide. The type-bars 54 in the shoot are fed forward intermittently by a follower 102a advanced by an endless chain 110 passing over' sprockets, one of which is rotated intermittently by ratchet mechanism. The follower 102a may be released fromthechain and adjusted by means of a hand-lever 105 pivoted about a vertical pivot to a slide movable in a guide-slot 107, the arrangement of the slide relatively to the slot being such as to allow tilting for easy removal therefrom. After printing, the slug is pushed off the carrier by the succeeding slug and drops into a receiver 144 in which stacking is effected by a pusher 145 actuated from an adjustable crank 156. To prevent the leading slug in the shoot from sticking to the adjacent slug, a pin 162 carried by a lever 158 rocked about a pivot 159 by the arm 65 is arranged to strike the slug prior to its transference to the carrier 41. Specification 476,083 is referred to. Inking-apparatus.-The slugs are inked by mechanism similar to that of Specification 476,083. The present machine, however, comprises a duct-roller 175 rotated intermittently by a pinion rigid with a ratchet 181 rotated by a pawl 184 carried by a lever rocked about a pivot 182, and a distributing-plate 194 rotated intermittently by a pawl 198 carried by a lover 199 rocked about a pivot 200 by a cam on the lever 44.
Patent GB-797930-A (GB)
Title: Improvements in or relating to pulse amplitude distribution recorders
Filed: 1956-05-24
Abstract: 797,930. Random pulses classifying. ATOMIC ENERGY OF CANADA, Ltd. May 24, 1956 [May 25, 1955], No. 16139/56. Class 37. In apparatus for plotting a histogram of pulse-amplitude distribution in random pulses produced for example by a Geiger tube, a pulse analyser feeds signals corresponding to the amplitude of the input pulses to scaling circuit 3-7. When the first of these circuits reaches its capacity the output pulse to the appropriate one of sheet markers 12-16 associated with it is used to operate a switch 18. This switch starts a motor 9 driving the sheet, stops further pulses operating the pulse analyser, and sets oscillator 19 generating further impulses. These pulses fill up the vacant channels, each channel marking the sheet as it becomes filled and puts calibration marks along the edge of the sheet. A scaling circuit 20 counting the output pulses from oscillator 19 restores switch 18 when pulses equal in number to the channel capacity have been counted. In the arrangement of Fig. 2 (not shown), each of the scaling circuits is arranged to give an output after either 10, 100, or 1,000 pulses, switches being provided to select the appropriate count. A further switch selects a corresponding output from scaler 20.
Patent GB-1424975-A (GB)
Title: Manufacture of welded renforcing elements
IPC: B23K11/00
Filed: 1974-04-11
Abstract: 1424975 Welding by pressure; shearing EVG ENTWICKLUNGS-U VERWERTUNGS GmbH 11 April 1974 [3 May 1973] 16193/74 Headings B3R and B3W In making a reinforcing element comprising a pair of rods with transverse rungs welded between them, the rods are fed, in substantially parallel relationship, stepwise between a pair of welding electrodes, a rung longer than the distance between the rods is positioned between the rods and is rotated into a position perpendicular to the rods, thus forcing them slightly apart, and the rung is welded to the rods by passing current between the electrodes. The rods L, L, Figs. 1, 3, in one embodiment, are fed through parallel guides 1 between pivoted electrodes 60, 60 suspended beneath transformers 61 and a bar ST from which the rungs are to be cut is fed between rollers 10 beneath the guides 1, one of the rollers 10 being driven intermittently by a bevel gear 13 rotated through a ratchet drive and crank from a main shaft 4. When the bar ST is advanced it enters a guide 20 and a recess in a cutter slide 21, Fig. 2, whose width is equal to that of the rung length, the slide being caused to slide across the guide 20 against a spring 22 and sever a length of bar ST. The movement of the slide is effected by a lever 7 rockable by a rod 6 acted on by a cam 5 on the shaft 4. The cut length of bar ST is advanced by the advancing bar ST through the guide 20 into a slot in a carrier 30 which is then raised by levers 33 and push rods 34 acted on by cams 32 and then rotated through 90 degrees by a cam 35 acting through a lever 36, triangular lever 39 and push rod 41 to press the rods L, L apart between the electrodes. The electrodes are actuated by the cylinder 62 to press against the rods L, L and current is passed between them. When welding is complete, the carrier 30 is lowered and rotated and the welded element is advanced by a hook 50 on a rocket arm 51. In a modification five welding units are combined, side-by-side, in one machine, all the carriers being operated by a single mechanism and one cutting slide being provided to cut five rungs simultaneously and in yet another modification two welding units are arranged one behind the other so that two rungs are welded at a time. In another embodiment several welding assemblies are arranged side by side, each assembly comprising a pair of units one behind the other. This embodiment may be combined with a device for welding transverse bars on to the parallel rods to produce a welded lattice work, the device having a magazine for transverse bars and upper and lower electrodes for welding them to the longitudinal rods.
Patent GB-647346-A (GB)
Title: Improvements in or relating to liquid fuel burners
IPC: F23D5/00
Filed: 1947-06-20
Abstract: 647,346. Liquid-fuel burners. TRIGGS, W. W. (Homestead Valve Manufacturing Co.). June 20, 1947, No. 16396. [Class 75(i)] In a burner structure including a combustion chamber 11, an open-ended air guide 35 extending into a fire-pot 7 mounted within the cobustion chamber, and a burner 31 with a bell deflector shield 37 projecting through the air guide 35 into the fire-pot 7 and cooperating therewith to produce a vortex of air and atomized fuel that extends from the burner to the firepot, the combustion chamber is mounted on a wind-box 14 to which the air guide is connected and the burner and bell deflector are mounted on the end of a fuel line 30 supported from a lid 43 which closes an opening 45 in the bottom of the wind-box aligned with the air guide 35. The apparatus shown is a portable agricultural sprayer in which a chemical mixture is sprayed by the partial vapourization thereof and comprises a hollow rectangular chassis serving as the wind-box 14 on which is carried an electric motor 20 which drives a blower 23 to force air through a hood 33 to the wind-box 14 and thence through an opening 34 therein and cylindrical air guide 35 to the space between the inwardly turned lip 36 of such air guide and the bell-shaped deflector 37 so into the fire-pot 7. The deflector 37 which allows some air to flow there-through deflects the air radially outwards in a rolling turbulent action to shape the burning and non-burning atomized fuel into a vortex. Liquid fuel is supplied from tank 13, through pipe 27, fuel pump (not shown), pipe 28, flexible hose 29, pipe 30 to the burner jet 31. To ensure a uniform air flow through the open-ended air guide 35, baffles 55 and 56, Figs. 1 and 2, are placed as shown within wind-box 14 to eliminate the rotational swirl imparted to the air by blower 23. The burner head is adjustably carried on the closure lid 43 which is held in position by lugs 46 fitting under bridge locking strips 47. The burner may be centralized by longitudinal movement in a slot 48, in the lid 43 and by rotating the horizontal portion of fuel pipe 30. Ignition may be commenced by a spark from electrode 51 to shield 37, the electrode being held in fixed relation to the burner by a clamp 53.
Patent GB-1471374-A (GB)
Title: Induction crucible furnace
IPC: F27B14/06
Filed: 1974-04-11
Abstract: 1471374 Coreless induction furnace BROWN BOVERI & CIE AG 11 April 1974 [11 April 1973] 16406/74 Heading H5H In a coreless induction furnace having an upright crucible 2 surrounded by an induction coil 5 stressed between upper and lower members 9, 8 which are interconnected by tie bars 10 the upper and lower ends of the induction coil 5 are spaced from members 9, 8 by helical non- magnetic electrically conductive spacers 6 to reduce power losses in the members 8, 9 and the remainder of the supporting frame. The spacers 6 are water cooled and are insulated from the coil ends and the members 8, 9 by insulators 16. An asbestos sleeve thermally insulates the coil from the crucible.
Patent GB-570933-A (GB)
Title: Improvements in straight bar knitting machines
IPC: D04B11/32
Filed: 1943-10-07
Abstract: 570,933. Knitting-machines. COTTON, Ltd., W., and COOPER, W. A. Oct. 7, 1943, No. 16411. [Class 74 (ii)] In a straight-bar machine in which the welt straps are attached to a beam roller rotatable to wind up and unwind the straps and wherein a second roller coupled to the first roller is connected by cords to the hook ends of the welt straps to provide means for positively drawing off the straps from the beam roller, the two rollers are coupled together by a spring coupling. Sprockets 18, 20 are provided upon the shafts 15, 21 carrying the rollers and are connected by an endless chain 19. A pin or anchorage 28 at one end of an arcuate slot 25 in the sprocket 20 is connected by a spring 26 to a pin 24 projecting from the second roller into the slot 25. The coupling therefore provides a solid drive after the spring has yielded.