baber/WOPTO huggingface dataset:
Patent GB-855485-A (GB)
Title: Improvements in the production of unsaturated hydrocarbons by cracking hydrocarbons
Inventor: STEINHOFER ADOLF
IPC: C07C11/02
Filed: 1959-03-13
Abstract: Gaseous unsaturated hydrocarbons, particularly ethylene and propylene, are prepared by cracking liquid hydrocarbons at 600-900 DEG C., in the presence of 20-200% by weight of steam in a fluidized bed of solid to which is added a small amount of a compound of an element of Group 1a or 2a of the Periodic Table. The liquid hydrocarbon may be a petroleum fraction, crude oil or residue. Normal pressure or increased pressure, e.g. 5-20 atmospheres may be used.  Oxygen may also be added separately or mixed with the hydrocarbon.  The solid material may be a synthetic or natural material containing magnesium, aluminium or silicon, e.g. sillimanite, corundum or magnesite, or carbon, e.g. high temperature coke anthracite, brown coal low temperature coke or oil coke, preferably that formed in the process.  The added compound may be impregnated into the solid or added direct to the bed in solid, pulverulent form, particularly when coke is the solid.  The solid may contain 0,01-1% of the element of Group 1a or 2a which is preferably added as the oxide or a compound forming the oxide such as the nitrate or carbonate.  Specified elements are sodium, potassium, beryllium, calcium and magnesium.  If the initial material contains sulphur this appears in the product as hydrogen sulphide and not the corrosive oxides.
Patent GB-777460-A (GB)
Title: Improvements in and relating to microphones
IPC: H04R1/22
Filed: 1954-03-25
Abstract: 777,460. Microphones. COSMOCORD Ltd., and KELLY, S. March 24, 1955 [March 25, 1954], No. 8748/54. Class 40 (4). A rigid member 29, substantially filling the air chamber between a non-planar diaphragm 23 and the cover plate or an acoustic resistance 33, has holes 32 therethrough which are dimensioned to be resonant at the upper end of the frequency range of the instrument. A bimorph crystal 21 is housed in a cavity 18 in base 12 which cavity is dimensioned also to extend the upper limit of the frequency range, and the remainder of the base has a contour corresponding with that of the diaphragm. Webs 31 from a boss 30 on the cover 13 prevent resonance of the cover and by presenting reflecting surfaces adjacent the apertures 32 increase the sensitivity. The cavities formed between adjacent webs are also resonant at the upper end. The cover is secured to the base by rivets 16, and flexible connections are terminated on terminals 27 secured to the base. An alternative arrangement is described with reference to Figs. 4 and 5 (not shown).
Patent GB-348292-A (GB)
Title: Improved process for the manufacture of cellulose acetates
IPC: C08B3/06
Filed: 1930-03-19
Abstract: Cellulose acetates are prepared by treating cellulosic material in an acetylating bath which contains a relatively small quantity of sulphur dioxide, for example, not more than 5 per cent calculated on the weight of the bath.  According to one method of procedure, the sulphur dioxide is added to the pretreatment bath comprising a lower fatty acid and also, if desired, acetic anhydride and/or sulphuric acid, the main bulk of the anhydride necessary for the acetylation being added subsequently. Alternatively, the sulphur dioxide may be added to the acetylation bath before the addition of the cellulosic material.  When working according to the former method, the temperature during pretreatment preferably does not exceed 20 DEG  C. in the event that lower fatty acid is used alone, or 10 DEG  C. when acetic anhydride or sulphuric acid is present.  According to examples, (1) cotton linters are pretreated with glacial acetic acid and sulphur dioxide, and then introduced into a mixture of glacial acetic acid, acetic anhydride, and concentrated sulphuric acid; (2) cotton linters are pretreated with glacial acetic acid containing concentrated sulphuric acid and sulphur dioxide, and then introduced into a mixture of acetic acid and acetic anhydride; (3) cotton linters are introduced into a mixture of acetic acid, acetic anhydride, sulphuric acid, and sulphur dioxide; (4) cotton linters are pretreated with acetic acid, acetic anhydride, and sulphur dioxide, and then acetylated by means of a mixture of acetic acid, acetic anhydride and sulphuric acid.
Patent GB-219061-A (GB)
Title: Improvements in, or relating to, siemens open-hearth furnaces
IPC: F27B3/00
Filed: 1923-09-14
Abstract: 219,061. Westwood, W. A. Sept. 14, 1923. Gaseous-fuel furnaces.-In a gas-fired openhearth furnace of the kind in which the gas uptakes are situated on the medial line of the furnace and forward of the air uptakes, lateral recesses are provided in the block enclosing the air and gas uptakes to give access to the arches of the gas uptakes. The block r enclosing the gas uptake f and air uptakes g is provided with recesses p, the end walls of which may be knocked away to gain access to the arch j over the gas uptake. The end wall of the block is also provided with a recess n to gain access to the gas uptake f.
Patent GB-106701-A (GB)
IPC: B28D1/18
Filed: 1916-06-24
Abstract: 106,701. Fairbrother, H.. (Rotary Power-Tool Co.). June 24, 1916. Tools and tool-holders.-A tool for treating natural and artificial stone, concrete, &c., comprises a rolling cutter 9 in which the front or leading side 15<c> of each tooth lies behind the radius that passes through the cutting-point of the tooth. The ends 15<a> of adjacent teeth are preferably equidistant from a radius parallel to the side 15<c> of one of the teeth. In the surfacing-tool shown, the cutters 9 are carried by spindles 10 which are held in grooves in a plate 7 by a plate 12, a flange on the plate 12 engaging a recess 10<a> in each spindle to prevent rotation thereof. One of the spindles is extended to lock the nut 6<a> by which the plate 7 is secured to a shaft 6. Washers 10<b> are mounted at the sides of and between the cutters, the outer washers being of substantially the same diameter as the cutters and forming auxiliary cutters. The shaft 6 is mounted in a casing 5, 5<a> carrying a handle 34, and is driven by a shaft 47, which may be moved so as to give an axial drive. The casing carries adjustable screws 17, 20 forming gauges, the screws 20 carrying rollers 23 which are prevented from rotating with the screws by telescopic members 26 connected to the handle. The casing parts 5, 5a have a threaded connexion and are locked together by a stud 52. The shaft 6 is slidable against the resistance of a spring 71, stops 76, 87 limiting its outward movement. The tension of the spring is adjustable by a worm 67 and sleeve 62. Lubricant is supplied to the casing part 5<a>, and passes through ducts to the lower part of the tool.
Patent GB-713043-A (GB)
Title: Improvements in or relating to apparatus for spraying or atomising liquids
IPC: A01M13/00
Filed: 1952-04-08
Abstract: 713,043. Spray-producers. HEIZMOTOREN GES. April 8, 1952 [April 13, 1951], No. 8949/52. Class 69 (3) A combustion chamber 1 contains a glow plug 6, and is fed with fuel and air through a carburettor 4 and a non-return valve 5 respectively, and a succession of rhythmic explosions are produced, the resultant gases of which are exhausted through a tube 2 to which liquid is fed. Spray liquid in a tank 8 is pressurized from the combustion chamber via a pipe 9 and a non-return valve 9a, and liquid is delivered through a valve 12 and pipe 10 to a nozzle 11 in the exhaust tube. The tube and chamber are surrounded by a tube 14 which extends forwardly of the exhaust tube outlet, so that air drawn into the annular passage L from an adjustable inlet 15 is heated and delivered to the said outlet. The length of that part of the tube 14 extending beyond the end of the exhaust tube 2 is adjustable by means of an axially movable extension piece 18 which, together with adjustable air inlets 17 and 20 provided in the tubes 14 and 2 respectively, effects variation of the exhaust gas temperature and the rhythm of the explosions. In Fig. 2 the spray liquid is introduced through an annular nozzle 25 disposed in front of the exhaust tube outlet, and the nozzle comprises adjustable parts 30, 31 providing a variable outlet s. A tubular extension 32 may be secured to the nozzle and provided with apertures 33 which may be closed by a ring 34. An attachment 35 may close the covering tube 24, Fig. 2, after removal of an adjustable extension 26 and an associated protective tube 27. The tank 8 or pipe 10 may be adjustably heated by the excess heat of the machine.
Patent GB-835510-A (GB)
Title: Method and apparatus for pouring varnish
IPC: B05C5/00
Filed: 1958-03-20
Abstract: <PICT:0835510/III/1> <PICT:0835510/III/2> Apparatus for coating a workpiece with varnish by pouring comprises a table which supports a workpiece being fed beneath a discharging nozzle, the table being pivotally mounted on a supporting frame so that it can be rotated about an axis in the direction of feed, and capable of being fixed at a desired angle. A workpiece having two surfaces intersecting at an angle to one another may thus be passed beneath the nozzle with both surfaces at the same angle to a vertical longitudinal plane passing through the line of intersection, and with this line parallel to the direction of feed.  As shown, the workpiece 13 rests on a conveyer belt 12 which is guided on a conveyer table on rolls 4, 5, 6, 7, 8, 9, 10 and 11 and is driven by an infinitely variable drive 14.  The belt passes beneath the roll 5, to provide a space in which is placed a varnish collector trough 16, beneath the outlet of the tank 51. The conveyer table and trough 16 may be inclined about a shaft 17 by means of a hand wheel 26 which rotates a threaded shaft 22 acting on a nut 29, pivoted to one of the side walls 2 of the table.  An adjustable guide is provided to prevent the workpiece from slipping sideways off the belt.
Patent GB-1115663-A (GB)
Title: Improvements in yachts having centre-boards
IPC: B63B41/00
Filed: 1966-03-01
Abstract: 1,115,663. Centre-boards. W. F. VONCK. 10 Feb., 1967 [1 March, 1966], No. 8963/66. Heading B7V. A yacht has a centre-board 5 which is slidable upwards and downwards in a slot 6 in the hull by a lifting and lowering device, the clearance around the centre-board in the slot being sealed by a resilient gasket 8 which is fixed to the hull and presses against the centre-board, and fixing devices are provided for securing the centreboard in its lowered position with flanges (18), Fig. 3 (not shown), which are fixed one to each side on the top of the centre-board, projecting laterally above the gasket. In the embodiment described, flanges (18) each consist of an assembly of two steel plates 19 and 20 stiffened by ribs and welded to each of the steel strips 16 fixed to the top of the aluminium centre-board by a series of through bolts and nuts 17.
Patent GB-1526025-A (GB)
Title: Hybrid coils
IPC: H04B1/58
Filed: 1977-02-18
Abstract: 1526025 Hybrid transformers COMMUNICATIONS PATENTS Ltd 18 Feb 1977 [6 March 1976] 9081/76 Heading H4R [Also in Division H1] A hybrid transformer has a primary with two sections 4, 5 connected directly in series by a capacitor 22, and two secondaries each having two sections 6, 7 and 8, 9 connected directly in series and intermediate its sections to respective terminals of the capacitors via HF terminating impedances 23, 24 (i.e. resistors, possibly shunted by chokes 25, 26, so that AF signals at 10, 12 pass directly to outputs 14, 18 and 17, 21 whilst HF signals pass by induction. A subscriber may therefore connect two receivers to the hybrid, each to receive HF and AF programmes.
Patent GB-720411-A (GB)
Title: Improvements in machines for forging bolt heads and the like
IPC: B21K1/44
Filed: 1952-04-10
Abstract: 720,411. Forging bolts. HOLZER, C., BUSHE, M. VON, and HENSEL, L., [trading as KIESERLING & ALBRECHT, T.]. April 10, 1952, No. 9199/52. Class 83 (4). A machine for heading bolts 4 and the like comprises means for feeding heated bolts automatically to the forging hammers 28, 29. These are operated by a belt-driven crank-shaft 3 which reciprocates the hammer 29. The hammers 28, and others if required, for forging the head flats, strike upon withdrawal of the hammer 29. A cam-shaft 8 controls the automatic feed of blanks from a shoot 5 or the like to the usual gripping jaws 27 of the work slide 26 and also effects feed of the slide to the forging position, the shaft being driven by step-down change-gear wheels 22, 23 and 24, 25 from the crank-shaft 3 and the drive arranged so that it can be de-clutched by a lever 30, Fig. 1, when it is required to dispense with the automatic operation of the supply of blanks, closure of the jaws 27 and feed of the slide 26. Blanks fall from the shoot 5 on to a bifurcated slide 6 which is reciprocated by a lever 10 controlled by a cam 9 on the cam-shaft to deliver the blanks to the spring fingers of a gripper 7 arranged to deposit them between the jaws 27, the gripper being operated by a cam 11 on the cam-shaft acting through a lever 12, a link 13 and a bell-crank lever 14. The slide is advanced to the forging position by a lever operated by a pneumatic jack 16 which is controlled by a valve 15 operated by the cam-shaft direct or by movement of the gripper 7, the jaws 27 being closed by stationary cams upon movement of the slide. After a succession of hammer blows, the slide 26 is returned by a. pneumatic jack 20 which rocks the levers 21 for withdrawing the slide and opening the jaws 27, the jack being controlled from the cam-shaft by a cam 19 acting on a valve 18. The sloping attitude of the machine facilitates the removal of scale by water.
Patent GB-248943-A (GB)
Title: Method and apparatus for forming sheet glass
IPC: C03B17/06
Filed: 1925-04-08
Abstract: 248,943. Marks, E. C., R., (Libbey-Owens Sheet Glass Co.). April 8 1925. Drawing.-Relates to the method of making sheet glass in which molten glass flows on to the top of a wedge-shape slab and then runs down the sides of the slab in two streams which unite at the lower edge to form a sheet. According to the invention, the casing containing the slab is adjustable to or from the outlet in the tank furnace in order to control the amount of glass drawn from the tank. The glass is melted in a tank furnace 10 and flows to a shallow refining- end 12 whence it passes through an aperture 14 in a stream 3. The outlet 14 is surrounded by a casing 16 that forms a heating-chamber, and a second casing 22 telescopes within the casing 16 and is moved vertically by means of screws 41. A hopper 24 is mounted at the upper end of the casing 22, and the sheet-forming slab 27 is mounted below a distributing-slot 26 at the lower end of the hopper. The stream 3 of glass flows into the hopper and forms a pool 25, whence it flows through the slot 26 into a trough 28 formed on the upper edge of the slab. The glass then flows down the sides of the slab and forms a sheet 31 which is drawn away by suitable drawing-apparatus 36. By moving the casing 22 vertically, the mass of the portion of the sheet 31 suspended from the slab 27 can be altered and the drawing-force is correspondingly altered. The amount of glass flowing into the pool 25 is controlled by raising or lowering a gate 13. The lower edge of the slab, instead of being straight, may be curved so that the glass flowing into the central portion of the sheet remains on the slab longer than that which flows into the edges of the sheet. The upper edge of the slab may also extend through the slot 26 into the hopper. In another construction, a passage may extend from the trough 28 downwards through the body of the slab so that a portion of the glass will flow through this passage and join the streams flowing over the sides. Electric heating-elements may be embedded in the slab to enable the temperature of the streams of glass to be regulated. The slot 26 may have metallic lining members the lower edges of which are flared outwardly to prevent the formation of dog metal along the side walls of the slot.
Patent GB-514158-A (GB)
Title: Improvements in and relating to wind screen wipers
IPC: B60S1/34
Filed: 1938-03-28
Abstract: 514,158. Windscreen cleaners. O'SHEI, W. E., and TRICO-FOLBERTH, Ltd. March 28, 1938, No. 9427. [Class 138 (i)] A Windscreen wiper of the kind in which the arm is adapted to be turned away from the screen to permit replacement of the blade, is provided with stop means such that lifting of the blade from the screen, due to air resistance at high speeds, is prevented. As shown, Fig. 2, the arm 11a is pivoted to a short arm 10 and is biassed towards the screen by a spring 31. Lifting of the arm from the screen is prevented by a stop 27 carried by a pivoted plate 26 which can be turned aside to allow tilting of the arm from the screen. In a modification, the stop consists of a nut on a bolt secured to the arm 10 and passing' through a slot in the arm 11a.
Patent GB-1138027-A (GB)
Title: Disengageable friction drive mechanism producing intermittently progressing rotational movements
Inventor: STUENDEL DIETER
IPC: F16H27/10
Filed: 1966-03-04
Abstract: 1,138,027. Friction gearing; controlling clutches. ELEKTRONISCHE RECHENMASCHINEN WISSENSCHAFTLICHER INDUSTRIEBETRIEB KARL - MARX - STADT VEB. 4 March, 1966, No. 9523/66. Headings F2L and F2Q. A disengageable friction drive for converting uniform rotation into intermittent rotation comprises a continuously rotating friction wheel 9 drivingly engageable with a driven friction wheel 13, both having fixed axes of rotation and one being in the form of a hollow cylinder surrounding the other wheel, the driven wheel having at least one recess 14 in its friction surface, which recess when adjacent the continuously rotating wheel interrupts the drive, and control means are provided for stopping and releasing the driven wheel and for initiating rotation thereof. As shown, friction wheels 9 driven from an input shaft 8 through gears 10, 11, 12 engage the inner periphery of a cylinder 13 secured to an output shaft 22. Diametrically opposed recesses 14 (Fig. 4, not shown) in the cylinder 13 are adjacent the wheels 9 in the rest position of the cylinder. When the cylinder 13 is brought to rest by engagement of a stop 16 with a control lever 29 a cylinder 21, coaxial with the cylinder 13 and having angular freedom relative thereto limited by a pin 24 and slot 25, continues to rotate briefly to tension a spring 28 between the two cylinders. Spring loaded brakes 15 prevent back-running of the cylinders. On energization of a solenoid 36 the lever 29 is rotated clear of the stop 16 and the spring 28 imparts a starting impulse to the cylinder 13 to bring its friction surface into engagement with the rotating wheels 9. Recesses and stops may be arranged to provide additional fractional rotational steps of the cylinder 13. A single continuously rotating wheel 1 inside the cylinder 2 may have a corresponding counterpressure wheel 4 (Fig. 2, not shown), outside the cylinder which may be an idler, or a driving wheel, in which latter case recesses are provided on the outside of the cylinder 2 corresponding to those on the inside. Alternatively the wheel 4 may comprise a slipping clutch, and be used to impart the starting impulse to the driven cylinder.
Patent GB-135754-A (GB)
Title: Improvements in and connected with Filing Cabinets, Letter Racks and the like.
IPC: A47B63/02
Filed: 1919-04-15
Abstract: 135,754. Egerton & Co., M., and Wilford, G. L. April 15, 1919. Cabinets.-Relates to means for facilitating the quick attachment or removal of labels which indicate the contents of each shelf or the like of a rack or cabinet. The label-holders are preferably arranged so as to be parallel to, but slightly in front or rear of, the front edges of the shelves. Fig. 2 shows an arrangement in which the label-holders are to the rear. In this arrangement, the side wall b of the rack forms an abutment for the labels j. The holder comprises a member f which extends at the side of the shelving, and a series of guides g for the labels. The guides may be of the form shown in Figs. 6, 7, and 8, the turned-in tubular edges g<2> forming clips to hold the edges of the labels. Like clips may also be used to support the shelving. By these means, the labels are kept quite clear of the shelving e. The rack is serviceable on a desk or table as a reference rack.
Patent GB-1206535-A (GB)
Title: Process for the production of elastic polyurethane filaments
Inventor: KEBERLE WOLFGANG
IPC: C08G18/08
Filed: 1968-02-28
Abstract: 1,206,535. Polyurethane filaments. FARBENFABRIKEN BAYER A.G. 28 Feb., 1968 [10 March, 1967], No. 9588/68. Heading B5B. [Also in Division C3] Elastic filaments are made by spinning an aqueous dispersion, free of emulsifiers, of a polyurethane containing 0À1-3À0% of salt groups and which has been prepared by condensation of a substantially linear polyol of M.W. 500-10,000 with a polyisocyanate and a chain-lengthening agent from which the salt groups are derived, into an aqueous bath. The dispersion may contain cross-linking agents, e.g. hexamethylolmelamine hexamethyl ether, TiO 2 , NH 4 Cl and a sodium naphthalene sulphonate/HCHO condensate (pigment dispersant). Polyether and polyester types of polyurethane are exemplified, containing saltgroups derived from lysine or an ethylene diamine/propane sultone adduct. The coagulating bath may be aq. CaCl 2  and the spun filaments may be heated to cross-link them.
Patent GB-1372064-A (GB)
Title: Wheel alignment gauge
IPC: G01B7/315
Filed: 1971-10-16
Abstract: 1372064 Measuring wheel alignment electrically V L CHURCHILL & CO Ltd 16 Jan 1973 [16 Oct 1971] 9614/71 Heading G1N Apparatus for measuring the angular inclinations of the wheels of a road vehicle comprises a block 1 Fig.1 which is mounted on each front wheel, with a reference face perpendicular to the axis of rotation, and carrying two mutually perpendicular inclinometers which measure wheel camber and King-pin inclination. As shown in Fig.4, the two inclinometers consist of three inter-connected vertical bores in block 1 containing oil, forming two perpendicular U-tubes, the height of the oil in each bore being measured by a capacitive transducer 12. The differences in height indicate the angle of inclination of each wheel in each of two perpendicular planes, representing the camber and King-pin inclination of each wheel. The capacitive transducers 12 determine the frequency of a multi-vibrator, which is converted to a proportional current. Each block 1 is also connected by a tube 2 to a further block 3 carrying a rotary capacitive transducer for measuring angular displacement of a spindle 4. The spindles are maintained aligned by a bar 9 located in V-blocks,5, or by a spring tensioning arrangement, and each transducer measures the angle between the tube 2 and the bar 9. The difference between the sum of the measured angles and 180 degrees is the toe-in or toe-out of the wheels, and is measured by the multi-vibrators referred to above, whose outputs may be fed to a loud speaker after the circuitry has been adjusted to give zero frequency output when the wheels are set to a desired toe-in.