baber/WOPTO huggingface dataset:
Patent GB-102595-A (GB)
Title: Improvements in and relating to Roasting Furnaces.
Inventor: FOUARGE FRANZ
IPC: F27B1/08
Filed: 1916-09-04
Abstract: 102,595. Fouarge, F. Sept. 4, 1916. Charges, agitating.-In a superposed-hearth roasting-furnace with reciprocating rabbles, the return strokes of the rabbles are made on guide-rails which raise the teeth above the material on the hearth. Fitted at the sides of each hearth are castings 11 formed with inwardly and upwardly extending flanges 13, 15 serving as guide-rails for the rabbles during their idle and working strokes respectively. The flanges 13 stop short of the ends of the furnace and are then continued by switch-pieces 18, 19, which are weighted to rest normally in the inclined and horizontal positions shown. At the end of the working stroke of a rabble, the switch-piece 18 is lifted and falls back into position after the rabble has passed. On the return stroke, the extensions 23 of the rabble head ride up the inclines 18 on to the guide-rails 13, thus raising the teeth above the charge; and they are again lowered at the end of the stroke by the tilting of the switch-piece 19. Vertical movement of the operating-rods 22 is allowed by freely-moving spring-pressed plates 27. The switch-pieces may be mounted on spindles 29 having squared heads to allow of their positive operation when necessary. The rabbles may be operated all from one side of the furnace, or in two sets from opposite sides. In the construction shown in Fig. 12, two adjacent arms are operated simultaneously by pins 36, 36<1> on an endless chain 35, the direction of movement of which is automatically reversed at the required intervals by a clutch 28. The hearths are provided with the usual end drop openings 8, and also with side openings, which prevent excessive accumulation of ore at the longitudinal edges of the hearths. These latter openings are fitted at one side only of each hearth, and at opposite sides of the furnace for adjacent hearths. The rabble teeth mav be set to push the ore to the sides of the hearths, as well as towards the ends. The hearths are mounted. above a furnace a having two coking-chambers c, which are charged alternately. The products of combustion escape through a regenerator d, which supplies hot air through passages g to the coking-chambers. Above the roasting-hearths are the usual dust-chambers 32.
Patent GB-1428473-A (GB)
Title: Device for passing tubes through a heat-treatment installaion
IPC: C21D9/50
Filed: 1973-03-15
Abstract: 1428473 Roller conveyers VALLOUREC USINES A TUBES DE LORRAINE-ESCAUT ET VALLOUBEC REUNIES 15 March 1973 [22 March 1972] 12505/73 Heading B8A Welded steel tubes T are passed through a heat-treatment station 7 by roller conveyers 1, 6, 8, 31, means being provided to maintain roundness and to avoid faults in the tubes due to stress during processing. Each tube is fed to a stop 3, on conical rollers 2 some of which are driven, after which, by means of rockers 4 and inclined guides 5, the tube is transferred to the conveyer 6; this conveyer and conveyer 8 consisting of conical idler rollers 9. Additional support for the tube while passing through the station 7 consists of a carriage having two heads 10, 11 each including a unit 13 which engages in an end of the tube and maintains the roundness of the end. Additionally, to allow the tube to assume an unstressed curve during processing, the rollers 9 may be adjusted, together with the two units 13 which are pivotally connected to the beam 12. To ensure that the weld of each tube is in uppermost position, the conveyer 6 has mechanisms 28a, 28b for rotating the tube. The heads 10, 11 are horizontally movable to engage the tube by a power-operated screw 16 of a body member 15 supported on some of the rollers 9. The member 15 is also mounted on a beam 12 longitudinally movable on a roller track (not shown) by a screw 21 drivable by one or other of two motors 26, 27. Variable-speed D.C. motor 26 moves the supported tube from the conveyer 6 through the treatment station 7 which includes induction heating means 40 provided with positioning means 41, 42. There may be provision for quenching and tempering. Thereafter the units 13 are retracted, and the tube, by mechanisms 31, is transferred to the discharge conveyer 33. The motor 27, which is an A.C. type, then causes the carriage to be returned at high speed to its starting position. One of the units 13 may be adapted to accommodate longitudinal expansion of the tubes. Further, the units and the heating means may be adapted to receive tubes of differing diameters.
Patent GB-803744-A (GB)
Title: Improvements relating to guard arrangements for circular saws and like rotary tools
Inventor: KESTEVEN WILFRED SYDNEY
IPC: B27G19/02
Filed: 1956-04-24
Abstract: 803,744. Machinery guards. BRITISH THOMSON-HOUSTON CO., Ltd. April 10, 1957 [April 24, 1956], No. 12526/56. Addition to 790,233. Class 80 (4). A displaceable guard for a rotating tool such as a circular saw 2 projecting through a table 3 comprises for each side of the saw two rotatable discs 19, 20 carried on pivoted arms 15, 17 and an intermediate plate 6 overlapping the discs and carried on parallel links 7, 8. The arms and links are pivoted on a rib 4 of a fixed shield 1. The arm 17 is preferably bifurcated at its pivot end and formed with a quadrant 171 guarding the space between the two coaxial discs 20. An extension 24 on the arm 17 co-operates with a stop 22 on an extension 5 of the rib 4. The arm 15 comprises a pair of members lying on opposite sides of the extension 5 and connected by a bridge 23 co-operating with a fixed stop 21. Each of the two plates 6 is carried by a link 7 and a link 8, the two links 8 being connected by a bolt and spacer 12 passing through an aperture 13 in the extension 5. A stop 14 co-operates with one or each of the links 8. The stops 14, 21, 22 determine the height of the plates and discs above the table and may be provided with rubber pads. The stops 21, 22 may, however, be omitted so that the discs rest on the table 3. When material of thickness less than the spacing h between the plates 6 and table 3 is fed to the saw it engages and lifts the discs 20, passes beneath the plates 6 and then engages and lifts the discs 19. If, however, the thickness is greater than the spacing h, the material lifts the discs 20 sufficiently for rollers 28 on the disc spindle to come into engagement with nose portions 29 of the plates 6 to raise the plates, and in turn tail portions 30 of the plates engage rollers 31 on the spindle of discs 19 and start to raise the discs 19. It is stated that for each side of the saw a further disc or discs may be provided.
Patent GB-275351-A (GB)
Title: Improvements relating to water controlling devices associated with centrifugal pumps
IPC: F01B25/00
Filed: 1926-05-17
Abstract: 275,351. Fothergill, H., and Hillier, H. May 17, 1926. Pumping apparatus; regulating.-A centrifugal pump used in a liquid flow system is designed to give a rising pressure with a falling quantity and a loaded control valve permits flow from the discharge to the suction side of the pump when the discharge pressure exceeds a certain value. The pumping apparatus is shown applied to a steam condensing and feed water system. The exhaust steam from the turbine 1 is condensed in the condenser 2; the air and other gases are withdrawn by the multi-stage ejector 3, 4 and any steam which reaches the ejectors is condensed on the outside of the tubes 5. The water from the condenser 2 is discharged by the pump 7 through the tubes 5 and a conduit 8 to the boiler feed pump 9. When the quantity of water condensed in the condenser 2 is greater than that discharged to the boiler by the feed pump 9, the rising level lifts the float 10 to operate the valve 11 thereby allowing water to pass from the conduit 8 through pipes 13, 14 to the feed tank 12. When the quantity of water condensed is less than that discharged to the boilers the falling level permits the float 10 to drop and the valve 11 connects the pipes 14, 15 so that water flows from the tank 12 to the condenser 2. To ensure a sufficient flow through the tubes 5 associated with the ejectors 3, 4, when only a small quantity of water is passing to the boilers, a valve 16 is provided in a pipe 17, 18 connecting the conduit 8 to the condenser 2. When the delivery pressure of the pump 7 rises above a predetermined value, owing to the falling quantity, the valve 16 is lifted against spring pressure to pass water from the conduit 8 back to the condenser. The valve may be constructed as shown in Fig. 3. The pressure pipe 17 is connected to the chamber 21 above the piston 19 and when the pressure is sufficient the valve 16 is depressed, against the lift of the spring 23, to connect the pipes 17, 18.
Patent GB-401313-A (GB)
Title: Improvements in or relating to the manufacture of metal articles
IPC: C22C9/06
Filed: 1932-05-03
Abstract: In a process for the manufacture of articles the surfaces of which contain designs and/or lettering such as coins, medals, and tokens, the articles are stamped from a soft copper-nickel-aluminium alloy containing 0,5-5,0 per cent of aluminium (preferably 1-3 per cent) and nickel about 3-4 times the aluminium content, the stamped article being hardened by heating them to 300-600 DEG  C.  The initial alloy may be softened by heating to 800-900 DEG  C. and then cooled rapidly.  The alloy may also contain up to 37 per cent of zinc. Specifications 250,194, 254,042, [both in Class 72, Iron &c.], and 386,017 are referred to.
Patent GB-432068-A (GB)
Title: Improvements in the port arrangements of two-cycle internal combustion engines
IPC: F02B25/00
Filed: 1934-04-27
Abstract: 432,068. Cylinders. PETTERS, Ltd., Westland Works, and JACKSON, P., Catterall House, West 'Coker Road, both in Yeovil, Somerset. April 27, 1934, No. 12789. [Classes 7 (ii) and 7 (iii)] In a two-stroke oil engine cylinder, having opposed groups of piston - controlled scavenging parts b arranged to direct air upthe cylinder wall opposite the exhaust ports c, additional air ports e are arranged tan. gentially. These ports are controlled by an engine-driven valve f, or by an automatic valve, and all the air is supplied under pressure from a trunk g running along the cylinders. The combustion chamber is formed as shown dotted, and the liquid fuel is sprayed outwards from a nozzle h.
Patent GB-826201-A (GB)
Title: Improvements in ships' davits
Inventor: THOMSON WILLIAM GILBERT
IPC: B63B23/18
Filed: 1957-04-23
Abstract: 826,201. Ship's davits. DAVIT DEVELOPMENTS Ltd. May 12,1958 [April 23, 1957], No. 12826/57. Class 115. A davit arm or arms 2 are mounted at their inner ends to fixed pivots 3 on the underside of the framework 6 of a ship the axis of the pivots incline inwards and downwards away from the ship's side. On releasing the securing means the davit arm or arms will swing from the stowed position, shown in dotted lines, to the fully outboard position, shown in full lines, under gravity, a stop 7 being provided to limit the swing and a cable 9 connected to a winch may also control the swing. The boat 5 is suspended from a tackle 10 which is suspended from swivel connection 18 attached to the davit arm. In the outboard position the boat is lowered and raised by a cable 8. In a inodified form the cables 8 and 9 may be replaced by a single cable and the outer end of the davit arm may be a separate member adapted to swivel with respect to the longitudinal axis of the davit arm. The lowering tackle or the swivelled end may be provided with releasable locking means between the two ports which are released only in the fully outboard position as in, Figs. 7-12, (not shown). The pivot 3 may be provided with helical surfaces such that the arm moves relatively to pivot axis in swinging between its stowed and outboard position.
Patent GB-1235572-A (GB)
Title: Sleeve pressing apparatus
Inventor: FORSE HARRY DONALD
IPC: D06F71/34
Filed: 1969-03-12
Abstract: 1,235,572. Sleeve pressing apparatus. H. D. FORSE. 12 March, 1969 [25 March, 1968], No. 12968/69. Heading D1A. Sleeve pressing apparatus comprises two vertically movable upright sleeve bucks 26, 27 pressing heads for each buck movable into contact with the bucks and means for moving the bucks between dressing and pressing positions, the upward movement being limited by the body portion of the garment engaging sensing means so that only the sleeves are placed between the pressing heads. Each buck 26, 27 comprises a steam heated element 110 and removable padding 101a and is mounted on the piston rod 29 of lift cylinder D. The pressing heads comprise, e.g. steam heated movable heads 34, 36 engaging an e.g. steam heated fixed head 35 and are mounted on pivoted levers 45, 46 whose lower ends are connected to the piston and cylinder of actuator B and are connected by a coil spring 53. The buck assembly is moved from dressing to pressing position through levers by actuator A assisted by spring 73. The bucks are so mounted that they may be swung between a position facing divergently outwards to which they are biassed by springs to a substantially parallel position when actuator F acts on their supporting linkage. They can also move slightly to accommodate variations in padding and the fact that head 35 is stationary while heads 34, 36 move inwards. Expanders 117, 118 mounted in recesses formed by padding 101a, 101b are actuated as a result of the actuation of a manually operated cuff clamp on top of the buck which causes the operation of actuator G. In operation when the shirt is dressed on the bucks a pivoted rod 204 adjacent buck 26 is held inside one sleeve. Then upward movement of the bucks takes place until rod 204 is released which is arranged to stop the action of cylinder D. Pressing heads 34, 36 then move into position and are held there for the required time as determined by the fluid actuated timing cylinder C after which they are released and the bucks return to dressing position. In operation, the sleeves are dressed on the bucks 26, 27, the cuff clamp is closed and the expanders are actuated after which the bucks are lifted to the extent determined by rod 204, a pedal being provided by which they can be released at this point. Then one of two levers 249, (250) is actuated manually and the bucks are moved from dressing to pressing position and pressing heads 34, 36 move in to engage the bucks lightly cylinder C being charged. The heads 34, 36 then close tightly on the bucks and timing starts. When pressing is complete the pressing heads move back and the bucks return to dressing position.
Patent GB-986900-A (GB)
Title: Etching method and machine
Inventor: HARRIS JEROME R
IPC: C23F1/08
Filed: 1963-04-02
Abstract: 986,900. Etching. ART COLOR PRINTING CO. April 2, 1963, No. 13027/63. Heading B6J. .A printing cylinder 28, Figs. 1, 5 and 6, is rolled from a truck 198 over rails 60, 64 which are thereafter lowered to inoperative positions, on to a carrier comprising vertically reciprocable standards 32, 34. The cylinder is then above an etching trough 30 comprising two wells 90, 92 horizontally reciprocable by means of an air piston and cylinder 108 to bring the wells in turn into etching position. Two different etching liquids are pumped into the wells by pumps EP<SP>1</SP>, EP<SP>2</SP> operated by motors MT<SP>1</SP>, MT<SP>2</SP>. The carrier lowers the cylinder into each well in turn, the cylinder being rotated in both directions in turn while in each well by a reversible motor MT<SP>3</SP>. The etching liquids are drained into a recovery tank 140 or into a main drain line. After etching, the cylinder is washed with water from a boom 178 swing- able about a pivot 176 by an air piston and cylinder 186. Air from a supply pipe 164, Fig. 4, is passed through passages 156 and openings 160 to bubble through the liquid in each well. The movement of the etching trough and of the water boom, the drain connections, the etching liquid supply and the water supply and draining are controlled by solenoid-actuated valves. The position of the trough, of the cylinder carrier, and of the rails 64, and the setting of the etching supply valves and the drain valve for the well 92, affect the setting of a plurality of microswitches, while two further microswitches are responsive to proper seating of the cylinder on the carrier. The motors and the valve solenoids are controlled by an electrical control system, in dependence on the setting of the microswitches, so as to operate the machine automatically, the several machine functions taking place in the requisite order and for periods controlled by timing relays. Individual machine functions can also be performed manually by closing manual switches, the circuits of which are disabled during automatic operation.
Patent GB-917225-A (GB)
Title: Process for purifying sorbic acid
IPC: C07C/
Filed: 1959-04-16
Abstract: Crude sorbic acid, especially the acid obtained by synthesis from crotonaldehyde and ketene, is purified by treating at a raised temperature with water containing a salt as electrolyte and having a pH value within the range of 0.5 to 7.0 and preferably 2.5 to 3.5 to dissolve out the sorbic acid, crystallising the sorbic acid from the aqueous medium and separating it from the mother liquor, and if desired, further purifying the sorbic acid so obtained by recrystallisation from an aqueous organic solvent.  The initial extraction step should preferably be effected at a temperature not less than 80 DEG C., e.g., at 90 to 115 DEG C.  Higher temperatures, e.g. up to 150 DEG C. may be used by working under superatmospheric pressure.  Specified acids which may be used to acidify the aqueous extracting medium are sulphuric, phosphoric, benzene sulphonic and toluene sulphonic acids.  Volatile acids such as hydrochloric and nitric acids may also be used but the acids of low volatility are preferred. Specified salts used as electrolytes are soluble alkali metal and alkaline earth metal salts of strong acids, especially strong mineral acids, e.g. sodium and potassium sulphates and phosphates, sodium and potassium chlorides, and potassium nitrate. It is preferred to use a salt of the same acid as that used to adjust the pH value of the extracting agent and if desired two or more acids or salts may be used.  Suitable aqueous organic solvents for the optional final crystallisation step are aqueous alcohols and/or ketones, e.g. methanol, ethanol, propanol, glycol, glycol methyl ether, glycerine, acetone or methyl ethyl ketone, and the water content is preferably 30 to 70% by weight.  The aqueous extracting agent is used in a proportion such as to enable the liquid, oily, and pitch-like constituents to settle out free from sorbic acid. Suitable apparatus for carrying out the process is described with reference to a drawing (not shown) and the extraction and recrystallisation may be carried out in a continuous manner.  In an example the extraction is effected with water containing 1-3% by weight of sodium sulphate and acidified to pH 2.5 to 3.5 with sulphuric acid, the water used being preheated to a temperature near its boiling point and the purified sorbic acid being finally crystallised from an aqueous acetone solution containing 30% by weight of water.  Specification 854,383 is referred to.
Patent GB-293162-A (GB)
Title: Improvements in and relating to miners' electric safety lamps
IPC: F21L4/00
Filed: 1927-05-16
Abstract: 293,162. Ceag, Ltd., and Plummer, R. J. May 16, 1927. Battery lamps. - In miners' safety lamps of the kind wherein the lantern is partly rotatable on the battery container for switching purposes, both the switch plate 10 and the wellglass 8 are positively locked against displacement in relation to the lamp top. This locking action is produced by pins 20 fixed in the lantern frame 2 and projecting into notches or holes formed in the flange 13 of the wellglass 8. The pins may also engage in notches in the flange 17 of the bulb-holder 9, which is secured to the switch plate. One or both surfaces of the wellglass flange may be formed with annular corrugations to bed into the resilient packing rings. The exterior of the glass 8 may be smooth while its inner surface is grooved or corrugated to form a series of diffusing prisms, which may be frosted.
Patent GB-150056-A (GB)
Title: An improved copper tube for refrigerators
IPC: F27D9/00
Filed: 1919-05-26
Abstract: 150,056. Dyche, A. May 26, 1919. Tubes of special section. -In a refrigerator of the kind comprising a number of tubes A of substantially isosceles triangular section arranged in two rows in staggered relation, the bases D of the tubes are formed with interfitting rabbets C and the sloping sides G with projections F, so that only a narrow strip of solder B is required between the projections F to complete the joint. Specifications 15995/99, [Class 29, Cooling &c.], and 2570/14 are referred to.
Patent GB-367638-A (GB)
Title: Improvements in or relating to the grouping or assembling of cigarettes or like shaped articles for packing
IPC: B65B19/10
Filed: 1931-05-04
Abstract: 367,638. Arranging cigarettes for packeting. UNITED CIGARETTE MACHINE CO. AKT.-GES., 5, Junghanstrasse, Dresden, Germany. May 4, 1931, No. 13160. Convention date, Dec. 17, 1930. [Class 94 (i).] In the assembly of cigarettes in batches in which one row contains a smaller number of cigarettes than the others, laterally displaceable guide faces are used to position the smaller row in a positive manner. If batches of twenty are to be formed, the superposed rows contain seven, six and seven cigarettes respectively. The cigarettes descend between vertical guides 2 from the hopper, the bottom layer being removed therefrom at intervals on to an inclined table 3 and beneath guides 8. The layer then falls, between flared guides 9, 10, on to a table 11. The next layer contains six cigarettes only, the right-hand compartment being stopped by any suitable device operated by a bellcrank lever 17. By the time that the layer of six is ready to fall between the guides 9, 10, slides 21, 22 are advanced through slots in the sides into the positions shown, so that the bevelled edges cause the layer to be correctly disposed with regard to the other layers. A succeeding layer of seven cigarettes is added and the batch of twenty is fed away for packeting. In a modified form, portions of the guides 9, 10 may be adapted to be swung inwardly at appropriate times.