baber/WOPTO huggingface dataset:
Patent GB-730298-A (GB)
Title: Improvements in and relating to the manufacture of cyanamides
IPC: C01C3/16
Filed: 1952-07-23
Abstract: In the production of alkali and alkaline earth metal cyanamides, particularly calcium cyanamide, by the reaction of the carbonate, with ammonia or the oxide with carbon dioxide or monoxide and ammonia at a selected reaction temperature above 600 DEG  C., the ammonia is fed to the reaction chamber at a temperature at which decomposition thereof does not occur and which is below the selected reaction temperature and the oxide or carbonate is injected as a suspension in a carrier gas at a temperature lying sufficiently above the selected reaction temperature to supply the heat required to establish and maintain the selected temperature in the reaction chamber.  Suitable temperatures are, for the ammonia, 400 DEG  to 500 DEG  C., for the lime, 1000 DEG  C., and for the carbon mon- or dioxide, 400 DEG  to 500 DEG  C.  A suitable apparatus is shown in Fig. 1 where a system A serves to convert calcium carbonate to lime and system B to convert the lime to calcium cyanamide.  Calcium carbonate passes from hopper 1 to an injector 2 from which it is injected as a gaseous suspension into an externally-heated reactor 5, preferably as a helical flow along the heated walls.  The lime after separation from the gases passes to a bunker 12.  The gases drawn off by pipe 10 from separator 9 are passed through a cyclone separator 14 and a heat exchanger 17 where their heat is employed to preheat the ammonia gas entering at 18 and leaving at 19.  The cooled waste gases leave at 20.  The carbon monoxide or dioxide is preheated in regenerative heaters 52 and is fed to an injection device 23 (Fig. 2, described below). The lime/gas suspension is given a helical movement in entering reactor 46 through line 45 and ammonia is injected through lines 19 and at points 48 through openings in the reactor wall.  The reaction products pass to a separator 53 from <PICT:0730298/III/1> <PICT:0730298/III/2> which solid calcium cyanamide is withdrawn at 54 and gases from pipe 55.  The latter pass to a separator 56 and a cooler 58 in which water is deposited.  The residual gases, still containing ammonia leave at 59 and may, after suitable enrichment be recycled to the cyanamide reactor.  The injection device (Fig. 2) is fed with hot solids (i.e. lime in injector 23 or calcium carbonate in injector 2) through pipe 26, to pass through a conveyer worm 28 to a grinder 37.  The solids pass between grinder members 37, 38 to an annular passage 39 to which several nozzles 40 open from lines 41 for the supply of carbon monoxide or dioxide.  The suspension formed may be passed directly to the reactor.  Specification 719,716, [Group II], is referred to.
Patent GB-498393-A (GB)
Title: Improvements in and relating to bracken-cutting machines
IPC: A01D34/86
Filed: 1937-07-06
Abstract: 498,393. Cutting bracken. COLLINS, C. M., and HENDERSON, W. M. July 6, 1937, Nos. 18724/37 and 18341/38. [Class 6 (iii)] A bracken cutter comprises a frame 1 carried by a wheel 2 and guided and held vertical by handles 6, this frame being fitted with a stub shaft 10 on which a bracket 9, carrying a dead axle 7 on which a rotating cutter 4 is journalled, is adjustably clamped so that while the machine is maintained upright, the bracket may be swung round the shaft 10 so as to bring the axis of the axle 7 approximately perpendicular to inclined ground. A motor 3 drives the land wheel 2 and also the cutter 4, the latter being driven through friction wheels 17, 21. The knives 5 are pivoted to their carrier and swing outwards due to centrifugal action. A transverse arm 15 carrying skids 16 extending downwards from the axle 7 may be used to position the cutter parallel to the ground, the clamp 11 in this case being merely frictiontight. Means operated from the handles may be provided to adjust the position of the cutter.
Patent GB-401800-A (GB)
Title: Improvements relating to means for extracting water from paper pulp and like substances in paper-making and like machines
IPC: D21F3/08
Filed: 1932-07-04
Abstract: 401,800. Press rolls for paper-making and like machines. REDDAWAY, F., and MUSKETT, J., Victoria Mills, Cheltenham Street, Pendleton, Manchester. July 4, 1932, No. 18802. [Classes 42 (ii) and 96.] A press roller for paper-making and like machines comprises in combination, a roll body a, with outwardly tapered extremities a<3>, and a recess a' for an inflatable tube c, a withdrawable exterior sleeve B with a fabric base b, reduced extremities b<x> and a rubber composition face b<1>, and cup-shaped end member d tapered to fit the roll extremities, said end members clamping the sleeve extremities to the roll and being held in place by concentrically disposed studs d<1>. The tube c is inflated by means of a channel c<1> extending through one of the axle ends a<1>. The cavity a<4> for the tube c may have a base wrapping of fabric.
Patent GB-694504-A (GB)
Title: Improvements in ring-roller machines for extruding plastic substances
IPC: B30B11/20
Filed: 1950-07-28
Abstract: 694,504. Roller-and-ring extrusion machines. SIZER, A. W. Oct. 26, 1951 [July 28, 1950], No. 18854/50. Class 87 (ii) The die ring 11 is positively driven from one side by a driving shaft located in bearings 13, 14, and one or more eccentrically adjustable extruding rollers 12 are disposed in rolling contact with the interior of the ring and may be withdrawn axially (to the left in the drawings) to give access to the interior of the ring. The rollers are journalled on the eccentrically turned ends of shafts 18 which extend oppositely to said driving shaft. The shafts 18 are fixed in brackets 19 by means of pad bolts 20, and to adjust the rollers to and from the ring, first these bolts are loosened and then the shafts 18 are turned by means of a key applied to their shaped ends 18a. The axial displacement of the rollers is effected by turning a screw 21 secured to bracket 19, the latter sliding on the bedplate 15.
Patent GB-1456300-A (GB)
Title: Cyclic compounds
IPC: C07C213/00
Filed: 1974-12-20
Abstract: 1456300 Cyclic ketones F HOFFMANN-LA ROCHE & CO AG 20 Dec 1974 [21 Dec 1973] 18884/76 Divided out of 1456299 Heading C2C The invention comprises compounds of the formula where R<SP>7</SP> and R<SP>8</SP> are H, amino, nitro, benzyloxy, diphenylmethoxy, triphenylmethoxy, -OR<SP>5</SP>, -OCOR<SP>6</SP> or -NHCOR<SP>5</SP>, R<SP>5</SP> is H or C 1 -C 7  alkyl, R<SP>6</SP> is C 1 -C 7  alkyl or phenyl, R<SP>3</SP> is C 1 -C 7  alkyl, R<SP>4</SP> is an oxygen function, R<SP>9</SP> is H, CN or -COOR<SP>10</SP>, R<SP>10</SP> is C 1 -C 7  alkyl or benzyl and n is 1 or 2. The compounds may be prepared by reacting a compound of the formula where X is OR<SP>11</SP>, N(R<SP>12</SP>) 2 , SR<SP>11</SP>, N<SP>+</SP>(R<SP>12</SP>) 3 , S<SP>+</SP>(R<SP>12</SP>) 2  or where R<SP>11</SP> is H, C 1 -C 7  alkyl, acetyl or benzoyl, R<SP>12</SP> is C 1 -C 7  alkyl and m is 1 or 2 with a compound of the formula in the presence of a base, or with an alkali salt of a compound of Formula III.
Patent GB-716705-A (GB)
Title: Improvements relating to the control of textile ring spinning and like frames
Inventor: HOLT FREDERICK BRERETON
IPC: D01H1/30
Filed: 1950-07-28
Abstract: 716,705. Variable drives for textile spinning &c. machines; builder motions. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 14, 1951 [July 28, 1950], No. 18927/50. Class 120(2) [Also in Group XXXVII] An arrangement for effecting change in the driving speed of a spinning frame electrically driven at two different 'speeds comprises a switch effective according to its position to determine the driving speed and means for controlling the switch position consisting of a cam that is rotated under the influence of the ratchet wheel shaft of the builder motion in such a manner that, at a predetermined stage in the spinning operation, the position of the switch will be changed to cause the frame to be driven at a higher speed. A builder motion lever 1 mounted for oscillation by a cam engaging a roller 3 carries a ratchet wheel 4 fixed to a shaft provided with two worms 5, 6. The worm 5 engages a rack 7 carried in a slide on the lever 1 and the worm 6 engages a worm wheel 8 mounted alongside a chain block wheel 9 on a spindle carried by the lever 1. A chain 10 connected through a compound pulley 11 to a chain 12 attached to ring rail lifter members may be fastened to the chain block wheel 9 for winding a cop build or a combined build or to a lug 14 on the rack 7 for a roving build. A cam 16' may be mounted on the wheel 9 or on the shaft of the wheel 9 for actuating a two-position switch. This cam is formed by two ring members 25, 26, Fig. 4, which may be adjusted relatively to one another to alter the position of the leading and trailing edges of the operative portion of the cam that acts upon a roller 29 resting on the plunger 31 of a switch 15<SP>1</SP>. A similar switch controlling device having a rotary cam operating a switch plunger has the cam rotated by a lever system driven by the rack 7. Mercury switches in which the mercury is displaced by an iron body movable by magnetic means may be employed. The switches may control a twospeed motor or may energize one or other of two motors that are both permanently coupled to the frame for driving it at different speeds, as described in Specification 716,704.
Patent GB-319830-A (GB)
Title: Improvements in or relating to collapsible suit cases and the like
IPC: A45C7/00
Filed: 1928-06-29
Abstract: 319,830. Flint, A. W. June 29, 1928. Folding cases; lids.-A suit or like case made of leather, stiff fabric, &c. comprise front and rear walls 1, 2, side, walls 4 creased at 5 to fold vertically midway of their length, a bottom 3 creased midway parallel to the front and back portions and also diagonally at 7 and a cover 9 hingedly attached to the upper edge of the rear wall and capable of being wrapped around the case when folded. The case is collapsed by the folded sides and bottom being brought to lie flat between the front and rear walls and is main. tained in the folded state by the engagement of fastenings 10, 11, provided on the front edge and upper surface respectively of the cover. When the case is in use, tabs 13 on the sides are secured to the studs 11, 14, on the cover and the fastenings 10 on the cover engage fastenings 17 on the front wall to keep the case closed. The front wall carries a handle 15 and a lock 16.
Patent GB-759603-A (GB)
Title: Method for the production of esters of penicillin
IPC: C07D499/32
Filed: 1953-07-09
Abstract: Esters of penicillin are produced by reacting an acid halide of penicillin with an alcohol in the presence of an inert organic solvent.  The acid halide is preferably produced according to Specification 758,653 and may be used without separation from the reaction solution employed therein.  Preferably a tertiary amine such as pyridine or quinoline is present to bind the halogen acids produced during the esterification.  Such is not necessary where the alcohol is an aminoalcohol such as a mono- or di-alkylamino alcohol, e.g. diethylaminoethanol.  Examples describe the preparation of the diethylamino ethyl ester of penicillin G in the form of the hydrochloride and hydroiodide; dimethylaminoethyl ester of penicillin G; the methyl and cyclohexyl ester of penicillin G.
Patent GB-820189-A (GB)
Title: Control system for earth moving machine
IPC: E02F9/20
Filed: 1957-06-18
Abstract: 820,189. Automatic position control systems. COLLINS RADIO CO. June 18, 1957 [Nov. 27, 1956], No. 19193/57. Drawings to Specification. Class 38 (4). The cutting blade of an earth-moving machine is maintained at a predetermined height above a reference plane by computing the position of the blade and generating an electrical signal which then controls the blade in an undisclosed manner. It is shown that the height of the blade is equal to H + R sin (# + #) and that H= # sin f(#)dL, where H is the height of the machine itself above the reference plane, R is the distance from the cutting edge of the blade to its pivot point on the machine, # is the angle between the vertical axis of the machine and a plane perpendicular to the reference plane, # is the angle of elevation of the cutting blade with respect to the machine, and L is the horizontal distance travelled by the machine. To solve the equation for H, the angle # is measured by a vertical gyro (not shown) having a synchro take-off, Fig. 2 (not shown), which rotates the disc of a pin and slotted disc sine generator, Fig. 3 (not shown). Movement of the pin of the generator (sin #) adjusts the position of the ball-cage of a ball and disc integrator, the disc of which is rotated in proportion to L, the distance travelled, as measured by a " fifth wheel " or by movement of the machine drive. Rotation of the output roller of the integrator adjusts the slider of a potentiometer to produce an A.C. signal proportional to H. This signal is added in an undisclosed circuit to the signal proportional to R sin (#+#) to produce the blade position control voltage. The signal proportional to R sin (#+#) is generated, Fig. 4 (not shown), by connecting the synchro take-off of the vertical gyro (#) to a differential synchro, the rotor of which is moved in accordance with the blade angle (#), and passing the #+# signal to a synchro resolver from which the sine of the angle is obtained.
Patent GB-242708-A (GB)
Title: Improvements in or relating to presses
IPC: A43D27/00
Filed: 1924-08-13
Abstract: 242,708. British United Shoe Machinery Co., Ltd., Gouldbourn, J., and Keall, F. B., (United Shoe Machinery Corporation). Aug. 13, 1924. Drawings to Specification. Addition to 220,010, [Class 31 (i), Cutting and severing machines, &c.]. Alloys.-The beam of a radial-arm press is made of lightweight alloy consisting of 94 per cent of aluminium, 4 per cent of copper, 1 per cent of nickel, 0.5 per cent of manganese, and 0.5 per cent of magnesium; or 89.05 per cent of aluminium, 7 per cent of zinc, 2.75 per cent of copper, and 1.2 per cent of iron.
Patent GB-421788-A (GB)
Title: Apparatus for the treatment of bone-fractures
IPC: A61B17/64
Filed: 1934-06-29
Abstract: 421,788. Fracture appliances. RENEVEY, E., Rue de la Maison Rouge, Yverdon, Switzerland. June 29, 1934, No. 19243. Convention date, June 29, 1933. [Class 81 (ii)] Apparatus for the extension and positioning of fractured bones comprises a pair of metal wires a, b, such as piano wires, which are passed through the bone above and below the fracture, two arcuate yokes f, g, adapted to embrace the ends of and to tension the wires, and two extension members w, v, lying one on each side of the bone and capable of elongation to force apart the yokes to which they are connected. The yokes are each made in two parts, one part carrying a pair of pins j, l, which enter recesses in the other part. The wires a, b, pass through bores in the yokes and are secured thereto by set screws s which press the wires into recesses t. The halves of the yokes are then pressed apart to tension the wires by turning the pins l, which are screw threaded, the pins serving as guides for this movement. The extension members each comprise a screw v engaging a tapped portion of the part w, these parts having ball heads y secured in sockets in the yokes by set screws 2. By rotating the parts w, by a tool inserted in holes x, and subsequently securing them, the parts of the fractured bone e may be drawn apart and fixed. The apparatus permits the fixing of the wires a, b, and the yokes f, g, in any relative angular positions in parallel or non-parallel planes according to the part, such as the shin, the forearm, or the finger, to be treated. The yokes and extension members may be made of non-corroding metal, hard metal seatings being provided for the wires a, b, in the bores of the yokes.
Patent GB-1365610-A (GB)
Title: Method of producing p-methoxybenzoic aldehyde
IPC: C07C45/28
Filed: 1972-04-26
Abstract: 1365610 Methoxybenzaldehyde VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT SINTETICHESKIKH I NATURALNYKH DUSHISTYKH VESCHESTV 26 April 1972 [30 April 1971] 19261/72 Heading C2C p-Methoxybenzoic aldehyde is produced by oxidizing p-cresol methyl ether with a persulphuric acid salt in an aqueous medium and in the presence of a catalyst comprising a variable valency metal or an oxide or salt thereof, In the examples silver salts, copper and copper oxide are employed as catalysts. The process may be conducted in the presence of oxalic acid ions when reduced amounts of catalyst may be employed.
Patent GB-1314263-A (GB)
Title: Blood diagnostic methods employing radioactive tracer compounds and ion-exchange resin membranes
IPC: G21H5/02
Filed: 1970-04-22
Abstract: 1314263 Determination of blood components MALLINCKRODT CHEMICAL WORKS 22 April 1970 [1 Ma,y 1969 13 Oct 1969] 19391/70 Heading BIX Blood components which can be bound by serum protein, for example thyroxine or triiodothyronine, or iron are determined by a method comprising preparing a liquid sample containing blood serum protein and a predetermined amount of a radioactive tracer compound capable of being bound by the serum protein and by an ion exchange resin, adding to the sample a thin strip of an ion exchange resin membrane and maintaining sample and strip in contact for a predetermined time, separating the membrane from the sample and determining the relative amounts of the labelled compound bound to the serum protein in the sample and to the membrane. The blood serum protein may be globulin, albumin or prealbumin. The radioactively labelled compound may be I<SP>125</SP>-thyroxine or I<SP>131</SP>-L-triiodothyronine for determination of the total thyroxine content of serum or the throxine binding capacity of serum protein, or ferric (Fe<SP>59</SP>) ammonium citrate for determination of the iron-binding capacity of serum proteins. The membrane may be a strip, sheet or film of solid hydrous gel of thickness 5 mils to 50 mls and may be comprise anionic or cationic exchange resin. Exemplified is a membrane comprising a vinyl copolymer carrying quaternary ammonium groups, the membrane being reinforced with loosely woven fibres of a co-polymer of vinyl chloride and acrylonitrile. A reagent for use in the determination of thyroxine content is prepared by diluting blood serum with barbital buffer pH 8.6, passing the diluted serum through an anion exchange column, which adsorbs about 80% of the thyroxine, and adding radioactive thyroxine to the filtered eluate.
Patent GB-351738-A (GB)
Title: Improvements in or connected with aerial railways for amusement purposes and the like
IPC: A63G7/00
Filed: 1930-06-26
Abstract: 351,738. Amusement apparatus. HAMILTON, W. L., 87, Union Street, Glasgow. June 26, 1930, No. 19428. [Class 132 (i).] An aerial railway of the kind comprising a track suspended between towers down which carriages travel by gravity, consists of a station tower A and a distant tower B between which the aerial track D extends in one or more circuits, each circuit comprising two runs an outward run from the station two and a return run from the distant tower, each run between the towers being in a straight line in plan. The tracks may comprise cables between the towers and curved rails 3, 5, 7 around the towers terminating in a switchback 9. An auxiliary tower C may be provided furnished with the cable supports described in Specification 217,723, [Class 104 (ii), Railway and tramway permanent way &c.]. A lift 10 may be provided to raise the cars E at the station tower.
Patent GB-237737-A (GB)
Title: Improvements in or relating to heating stoves, boiler furnaces and the like
IPC: F24B5/02
Filed: 1924-08-18
Abstract: 237,737. Hejma, V. Aug. 18, 1924. Air-heating stoves; closed solid-fuel stoves; air supply for combustion; air, moistening; grates; heat-radiators. - Secondary air is admitted by ports 3 in the sides of the combustion chamber, the ports being inclined downwardly and arranged, as shown in Fig. 2, so as to direct the air tangentially to the more or less conical upper surface of the fuel bed. In the heating-stove shown the air is supplied in a preheated state to the ports 3 from ducts 5 in communication with a chamber 7 below the ash-pit. Air is heated in a casing surrounding a radiating body 16, and after passing through radiators 21 is led through a perforated coiled pipe 20<a> arranged in the chamber 7 which contains water, the steam from which is carried along by the circulating air. A number of flat radiating chambers 17 containing baffles 18 are connected to the flue. The circular grate, Fig. 4 is supported on a cam-shaped bearing 14, so that on rotating it it is simultaneously moved vertically.
Patent GB-940370-A (GB)
Title: Improvements in or relating to rocket launchers
Inventor: GREGORY-HUMPHERIES ERIC WILLIA
IPC: F41F3/065
Filed: 1961-05-31
Abstract: 940,370. Launching rockets from aircraft. THOMAS FRENCH & SONS Ltd. May 29, 1962 [May 31, 1961], No. 19600/61. Heading F3C. To increase the load of rockets which can be carried by an aircraft, a supplementary launcher is provided which can be attached to the fixed launcher in such a way as to form a composite launcher. The supplementary launcher may be a sleeve 12, Fig. 1, which slides over the fixed launcher 11 and is secured by a locking-plate 12. The plate 12 may carry electric contacts to connect the rockets to the firing mechanism. In Fig. 2, the launchers are both semi-cylindrical, the launcher 21 being secured to the aircraft by lugs 21e and the launcher 22 being secured to launcher 21 by assemblies 23, 24, Fig. 3. Each launcher has tubular rocket housings 21b spaced along its length by pairs of plates 21c separated by foamed plastic. A plate 21d separates the two launchers, and the assemblies 23, 24 are located between the pairs of plates 21c, a rocket tube 21b extending through each member 23,24. The members 23, 24 comprise rigid blocks 23a 24a, a pin 23c housed in the block 23a being engaged by a hook 24c pivoted in the block 24a. The hook is held by a leaf-spring 24f and bears against a stop 24e. Additional locking- bolts may be provided to secure the launchers together and a back-plate may carry the lead wires from the firing mechanism.
Patent GB-994775-A (GB)
Title: Improvements in or relating to drill bits
IPC: E21B10/40
Filed: 1964-05-12
Abstract: 994,775. Percussive drills. SANDVIKENS JERNVERKS, A.B. May 12, 1964 [May 14, 1963], No. 19698/64. Heading B4C. A percussive drill bit comprises a rod 12 connected by a drive transmitting means 13, 24 to a sleeve 15 and stop means 20, 23 which have to be negotiated and passed by at least a partial relative rotational movement of the rod and sleeve before the drive transmitting means can be engaged. The sleeve 10 is formed with cutting inserts 11, such as of sintered carbide, and also a bore 17 into which a bush 25 is brazed, the bush being formed with a thread 20 adapted to co-operate with a thread 23 on the rod; alternatively, the bush may be dispensed with and the thread 20 formed directly in the sleeve. The drive transmitting means is formed by co-operating tapered surfaces 13, 24 on the rod and sleeve respectively. In operation, if the sleeve becomes disengaged from the rod, the sleeve is lifted from the hole by the abutment of threads. A pilot peg 14 is provided on the rod and may be fitted with cutting inserts.
Patent GB-1002053-A (GB)
Title: Improvements in or relating to induction furnaces
IPC: F27B14/02
Filed: 1964-05-12
Abstract: 1,002,053. Induction furnaces. A. WERTLI. May 12, 1964 [May 25, 1963], No. 19717/64. Heading H5H. An induction furnace 1 of the type comprising a space 9 containing induction coils (not shown) and surrounded by an annular chamber 10 containing molten metal, has an orifice 4 connected to a conventional casting die 5 and cooling unit 6, the metal being fed through a hollow body 11 made of refractory non-conducting material which interrupts the current induced by the coils so that turbulence caused thereby in the metal flow to the die 5 is eliminated or reduced. The molten metal around the body 11 serves to keep warm the feed to the die, several of which may be connected to the orifice 4.