baber/WOPTO huggingface dataset:
Patent GB-883202-A (GB)
Title: Improvements in the manfacture of sodium carbonate
Inventor: DASCALESCU AURELIAN
IPC: C01D7/12
Filed: 1957-05-09
Abstract: <PICT:0883202/III/1> In the manufacture of sodium carbonate by calcination of sodium bicarbonate, particulate bicarbonate is entrained in a gas stream which includes carbon dioxide, or carbon dioxide and steam produced in the calcining operation and has been preheated to above 500 DEG C. and the gas stream containing the entrained bicarbonate is passed through a reactor in which calcination takes place.  Bicarbonate crystals are fed from screen 1 through feeder 2 into calcining tube 3 at restricted throat 3a.  Gas, preheated to at least 700 DEG C., passes into tube 3 from f, and picks up, and carries, the bicarbonate up the tube, and round the inverted-U 4 into cyclone separator 5.  Separated soda is discharged at 11 at about 120 DEG C. and passed to packing, while the gases containing CO2 and H2O are drawn off by pump 6.  Part of these gases passes through a to storage 7 and part is recycled through b, and superheater 9 to pipe f.  Fuel is fed through e into combustion chamber 10 of the superheater and part of the resulting gases may be recycled through c, fan 8 and d.  The steam may be removed from the CO2 gases by condensation if desired.
Patent GB-1523223-A (GB)
Title: Method of and apparatus for the spectroscopic analysis of gas
IPC: G01J3/44
Filed: 1976-04-12
Abstract: 1523223 Spectrophotometer ALLIED CHEMICAL CORP 12 April 1976 [21 April 1975] 14847/76 Heading G1A [Also in Division G2] In a spectroscopic apparatus a gas sample is illuminated by a plurality 14a-14e spatially superimposed but spectrally separated monochromatic beams, the frequency difference between spectrally adjacent said beams being equal to the periodic frequency interval between adjacent components of the rotational Raman or like spectrum of a particular gas; the scattered light from the sample being passed through a filter having a single narrow transmission window, the arrangement being such that each exciting beam 14 produces a respective Raman spectrum 24 having a respective one of its components at the transmission frequency of the filter, whereby the light transmitted by the filter is composed of a plurality of superimposed spectral components. The beams may be produced by a dye laser having a Fabry Perot interferometer in the cavity, whereby a regularly spectrally spaced series 14 of laser frequencies are produced. The exciting beams may be modulated and an appropriate synchronous modulation applied to the detector. Specifications 1523222 and 1523224 referred to.
Patent GB-181597-A (GB)
Title: Improvements in and connected with pneumatic tyres and wheels therefor
IPC: B60C5/18
Filed: 1921-05-28
Abstract: 181,597. Elliott, T. May 28, 1921. Air tubes and chambers.-In a sectional pneumatic tyre, segments B<1>, B<2>, B<3>, B<4> - - fitted with inner tubes C<1>, C<2>, C<3>, C<4>, - - are mounted on the rim, and the tubes C<1>, C<2>, C<3>, C<4> - - communicate through pipes E with reservoirs formed within the wheel. In the pressedsteel wheel shown in Fig. 1, two reservoirs K<1>, K<2> are formed by the hollow felloe K and the spokes H, and in the steel disc wheel shown in Fig. 4, the reservoirs G, G<1>, G<2> occupy the space between the discs.
Patent GB-1006762-A (GB)
Title: Drive means for operation tables
Inventor: RUTH GERHARD
IPC: A61G13/10
Filed: 1964-04-10
Abstract: 1,006,762. Operating tables. MEDIZINISCHE GERATEFABRIK BERLIN VEB. April 10, 1964, No. 14903/64. Heading A4H. A device for operating the drive of an operating table having electro hydraulic or electro pneumatic drive when there is a current failure or motor breakdown comprises a band roll 9 forming one part with a bearing ring 7 of an idling device mounted on the coupling shaft 2 connecting the armature shaft of the electric motor to an oil pump or air compressor and a spring 8 connected between ring 7 and a pillar 12, a cage 5 within ring having recesses 3 for bearing rollers 4 in chambers 6 of ring 7 so that by pulling on a handle 14 fixed to part 9 by a tension band 10 the shaft is rotated, the spring is tensioned and on the band being released it is rewound while the shaft continues to rotate.
Patent GB-1503746-A (GB)
Title: Mountings for bobbins containing filamentous material
Inventor: KAUFMANN JOSEF
IPC: D03D47/00
Filed: 1975-04-11
Abstract: 1503746 Looms SULZER BROS Ltd 11 April 1975 [11 April 1974] 14989/75 Heading D1E A loom has a weft bobbin support comprising a rod 2 carrying a cup shaped member 3 with at least one longitudinal slot 4 and a member 6 to expand the cup 3 to grip the bobbin 11. The member 6 may be a circlip, a foam block or an inflatable bag.
Patent GB-201694-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41F1/28
Filed: 1922-05-29
Abstract: 201,694. Harries, A. W. May 29, 1922. Platen machines ; set-off, preventing.-In a web-printing platen machine, the web i is drawn intermittently from the supply roll i<1> across the typebed c by geared rollers j, k, the shaft of the roller j having a spur wheel s engaged by a driving-wheel o which has no teeth on a portion r of its circumference. The wheel q is driven by a sprocket o, chain n, and pinion p from the main shaft of the machine. Tension is applied to the web between the supply roll and platen press by a device x consisting of springs 3 carried by a bar 4, the paper passing between the free ends 7 of the springs and a fixed bar 8. A wiper or doctor 17 is applied to the surface of the roller k to remove any ink collecting thereon. Fig. 3 shows modified feed-rollers 18, 19 with portions 23 of their surfaces raised. The feedrollers revolve continuously but the web is fed only during the time the raised segments 23 are in contact, so that by angularly adjusting the top roller the length of web fed at each revolution of the rollers may be varied.
Patent GB-585709-A (GB)
Title: Improvements in or relating to boring tools
IPC: E21B10/46
Filed: 1944-08-08
Abstract: 585,709. Boring earth. HURDITCH, J., and HOWARD & CO., Ltd., J. Aug. 8, 1944, No. 15086. [Class 85] [Also in Groups XXII and XXIII] In a boring tool for earth or rock, the head 12 is of dome shape and carries one or more spiral flukes each having a cutting edge along the whole of their length or, spaced cutters 15 ; both may have tungsten carbide tips and they progressively decrease in depth from the rear to the nose. The cutting tips overlap laterally and in the case of separate cutters these also overlap to leave no path untraced in boring. Spaced cutters may have the inter-spaces armoured with tungsten carbide. For drilling rock a pilot cutter may be affixed to the head. The boring shaft may be divided into lengths each containing a spiral extractor thereon and adapted to be jointed together by keying, screwing, bolts or sockets, &c. The shaft may be tubular to allow coolant or compressed air to reach cutting surfaces and assist boring and removal of spoil. Diamonds or diamond dust may be incorporated in the cutting-edges. Specifications 13964/95 and 2600/99, [both in Class 85], are referred to.
Patent GB-219661-A (GB)
IPC: B64C31/024
Filed: 1924-06-23
Abstract: 219,661. Daimler-Motoren-Ges. July 27, 1923, [Convention date]. Aeroplanes; fuselage.-An aeroplane body a is provided with detachable and interchangeable fore parts, namely, a fore part d, Fig. 2, carrying an engine and propeller for power flight, and a fore part c, Fig. 1, (fitted with a cock-pit and seat) for glider flights. When the machine is adapted for power flight, a pilot's seat situated in the main body is occupied. Any suitable form of joint may be employed for detachably connecting the fore parts to the main body.
Patent GB-657767-A (GB)
Title: Improvements in low frequency meters
IPC: G01R23/02
Filed: 1948-06-04
Abstract: 657,767. Frequency measurements. BRITISH THOMSON-HOUSTON CO., Ltd., EDMUNDSON, D., and ATKINS, B. June 4, 1948, No. 15185. [Class 37] A low-frequency meter comprises a condenser alternately connected to charging and discharging circuits synchronously with the frequency to be measured by a relay, the contacts of which dwell in both the charging and discharging position for periods sufficient fully to charge and discharge the condenser, and a thermal meter for measuring the R.M.S. value of either the charge or discharge currents of the condenser. The low-frequency to be measured appears across the winding 1 of a relay having an armature 2 which is operated between contacts 3, 4 in synchronism with the low-frequency. A glow discharge tube 11 is fed through a resistance 8 from a D.C. source 5, 6 and maintains a constant voltage to which a condenser 7 is charged when the relay armature 2 is on the contact 3. When on the contact 4, the armature completes a discharging circuit through a thermal meter 9 and a resistance 10, the thermal meter thus indicating the R.M.S. value of the discharging current of the condenser. Since the stored energy discharged during each cycle is the same, the meter reads with a linear scale of frequency. In the arrangement shown, the voltage of which the frequency is to be measured is induced in a pick-up coil 11a responsive to the slip frequency' of an induction motor or coupling. The normal 50-cycle supply frequency is eliminated by means of a balanced low-pass filter circuit 12, the output from which is passed to a push-pull amplifier 13 which supplies the operating winding 1.
Patent GB-651156-A (GB)
Title: Improvements relating to refuse vehicles
IPC: B65F3/20
Filed: 1948-06-04
Abstract: 651,156. Conveyers ; loading vehicles. DOORNE, H. J. VAN. June 4, 1948, No. 15199. Convention date, June 6, 1947. [Classes 78 (i) and 78 (iv)] [Also in Group XXIV] A refuse vehicle which comprises a loading receptacle or hopper of part circular shape behind the refuse tank has a device for pressing the refuse from the loading receptacle into the tank, the device consisting of a plate arranged in the loading receptacle and adapted to be reciprocated in a swinging motion about a vertical or inclined axis. The vehicle 1 has a rear door 2 pivoted at 3 and a rear hopper 4 within which a plate 12 is reciprocated by the rotation of a shaft 10 which encloses a shaft 19 geared to the coupling 15, 16 with the vehicle driving-means at one end and at the other end to a shaft 28 operating a pinion 29 cooperating with a curved rack 32 which reciprocates an arm 30 connected to the outer shaft 10 and to which the plate 12 is attached to give it a swinging motion within the hopper and to compress the contents into the vehicle body. The plate may be otherwise operated hydraulically through a valve. A cam on the driven shaft operates arms alternately which in turn contact spring- pressed plungers operating opposite ends of a piston to drive fluid to a lower piston chamber operating a reciprocating piston connected to a shaft to which the plate is attached which is caused to rotate to feed the material into the vehicle. A double-acting piston may be used or two single-acting pistons, or the plate may be operated by a chain driven from the driving. shaft of the vehicle through suitable gearing.
Patent GB-439154-A (GB)
Title: An improved spinning arrangement for the production of artificial filaments, more particularly artificial silk
IPC: D01D7/00
Filed: 1935-05-24
Abstract: <PICT:0439154/IV/1> In a spinning arrangement for making artificial filaments, more particularly artificial silk, a small deviating roller 5 is preinserted with respect to the crossing filament guide 6 of the spinning bobbin 7, and is rotatably disposed freely displaceable in both directions on a shaft 8 parallel with the spinning bobbin shaft, so that it may follow laterally the crossing effect of the filament 3 passing thereover from the positively driven draw-off roller 4.
Patent GB-110597-A (GB)
Title: Improvements in Pressure Releasing Devices for the Rollers of Clothes Wringers.
Inventor: HEMENWAY JOHN FRANCIS
IPC: D06F45/00
Filed: 1916-10-25
Abstract: 110,597. Hemenway, J. r. Oct. 25, 1916. Wringers, roller-separating arrangements for.- The top-bar 8, slidably mounted between the jaws of the slotted side-bars, carries a bowed spring 11 secured by screws passing through slots therein. The outer ends of the spring are formed with T-shaped heads 12 engaging in T-shaped slots 10 in plates 9 secured to the side bars. By depressing a. pin 14, furnished with teeth engaged by a pawl 16, the ends of the spring are drawn inwards until the neck of the head 12 registers with the plate 9, whereupon the top bar will be freed and will be moved upwards by the pressure springs 4, thus releasing the pressure on the rollers.
Patent GB-1191204-A (GB)
Title: Metallic Composition
IPC: C09D5/38
Filed: 1968-03-29
Abstract: 1,191,204. Aqueous metallic pigment pastes. SHOWA ALUMINIUM POWDER CO. Ltd. 29 March, 1968 [9 May, 1967], No. 15306/68. Heading C4A. An aqueous metallic flake, particularly for use as a pigment, is prepared by grinding a malleable metal or alloy, e.g. Al, Cu, Zn, brass or bronze in an aqueous medium containing a C 12 -C 18  fatty acid, at least an equimolar amount of morpholine, and a solubilized non-water-soluble organic liquid. " Aqueous medium " herein means a liquid existing uniformly in one phase during the grinding. The fatty acid may be stearic, palmitic, oleic, lauric, linoleic or linolenic in an amount 2-10% by wt. of the metal. The organic liquid may be mineral spirits, solvent naphtha, turpentine oil, benzene, toluene, xylene, xylol or a halogenated hydrocarbon e.g. trichlorodiphenyl in an amount 2-20% by wt. of the metal. A water-soluble organic compound e.g. n- or i-propanol, acetone, or dioxane may replace 5-40% of the water content to aid solubilization of the water-insoluble organic liquid, and the total aqueous medium is preferably 80-150% of the metal weight. The final metal paste preferably contains 20-40% by wt. of water.
Patent GB-1060412-A (GB)
Title: Cellular thermoplastic material
IPC: B29C44/34
Filed: 1964-04-14
Abstract: Cellular thermoplastic material is prepared by heating thermoplastic material mixed with discrete particulate matter to above the softening point of the thermoplastic material under pressure of a gas soluble in and essentially saturating the thermoplastic material, and extruding the resultant composition into a zone of lower pressure under conditions such that the thermoplastic material is super-saturated with respect to the gas, the discrete particulate matter having a thermal conductivity of 0.001 to 1.0 (cal) (cm.)/(sec.)(cm.sq.) ( DEG  C.) and a specific heat of 0.003 to 0.3 cal/g., whereby the gas leaving solution nucleates at the sites of the said particulate matter. The particulate matter may be a metal such as lead, silver, zinc, tin, mercury, aluminium, copper, palladium and bismuth, an alloy such as Wood's metal and molybdenum-Permalloy and a metal compound such as an acetate, halide or oxalate which decomposes to the metal.  Suitable thermoplastic material is that obtained by polymerizing or copolymerizing compounds such as ethylene, propylene, vinyl chloride, styrene and methylmethacrylate. The gas soluble in the thermoplastic material may be argon, nitrogen, helium, air and carbon dioxide.  Wire may be covered with the cellular material using a wire covering crosshead attached to the extruder (see Division B5).
Patent GB-144649-A (GB)
Title: Improvements in weighing-scales
IPC: G01G1/26
Filed: 1920-06-07
Abstract: 144,649. Soc. Industrielle d'Instruments de PrÚcision. June 7, 1919, [Convention date]. Balances, links and stays for; pendulum-weight apparatus; steelyard apparatus. - The pans of weighing scales are supported on their knife - edges by means of two vertical members resting one on the other and are steaded laterally by stretched horizontal wires. In the scale shown in Fig. 1, the pan a is supported on a vertical member b which rests on a vertical members e bearing on one end of a steel. yard h. Stretched wires c arranged in the form of crosses steady the member b. In a modification, the lower end of the member b and the lower wires c are situated below the knife-edge f, the steelyard being replaced by a pendulum-lever. In a machine wherein a scale beam is provided with a pan at each end, the pan supports b<3>, Fig. 5, rest on hooks b<2> and are steadied by wires c.
Patent GB-496029-A (GB)
Title: Improvements in blade systems for elastic fluid reaction turbines
IPC: F01D1/06
Filed: 1938-05-23
Abstract: 496,029. Steam &c. turbines. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. May 23, 1938, No. 15374. Convention date, May 26, 1937. [Class 110 (iii)] In an elastic-fluid reaction turbine, shown in the Figure as of the outward-flow oppositelyrunning rotor type, the blades 1<11>, 8<11> are disposed forwardly relatively to the blade carriers 1, 8, so that leakage fluid passing the packings 10 enters the main fluid stream without forming eddies. The edges of the blade carriers are rounded.
Patent GB-683389-A (GB)
Title: Improvements in or relating to the repairing of broken ceramic-ware and glass-ware
IPC: B28B11/00
Filed: 1949-06-09
Abstract: 683,389. Repairing broken ceramic-ware and glass-ware. BOCK. W. June 9, 1950 [June 9, 19491, No. 15387/49. Class 128 [Also in Groups XXIII and XXV] Broken ceramic-ware and glass-ware are repaired by assembling the parts, e.g. parts 3 and 4 of a plate, forming channels 6 across the line of fracture 2, e.g. on the underside of the plate, placing cement in the channels and embedding at least one dowel pin 5 in each cement filling so that the parts are held firmly together when the cement sets. The parts may be cemented together before the channels are made. The pins 5 are preferably made from wire or rigid strip material. They may have irregular surfaces, e.g. they may be ribbed, grooved, serrated or helically twisted. The cement may be covered with paint or enamel.
Patent GB-195302-A (GB)
Title: Improvements in or connected with mining dials, theodolites, and such like
IPC: G01C1/02
Filed: 1922-06-01
Abstract: 195,302. Thornton, A. J., and Eagle, G. June 1, 1922. Stands.- A support for a miners' dial, theodolite, or surveyor's level is provided with a cylindrical top a upon which fits a split cylindrical socket c on the carrier for the instrument, the socket being formed with an external screw thread upon which screws a clamping ring d. A rubber or other buffer e is provided between the top a and the socket c.
Patent GB-855186-A (GB)
Title: Improvements in or relating to the manufacture of cutlery
Inventor: GREGORY JOHN HENRY
IPC: B24B3/54
Filed: 1958-05-14
Abstract: 855,186. Grinding cutlery. WESTALL RICHARDSON Ltd. April 29, 1959 [May 14, 1958], No. 15394/58. Class 60.  A machine for grinding flutes in a blade blank involving the processes described in Specification 855,185 comprises a motor-driven grinding wheel 10 the peripheral face of which is adapted to receive a rib formation 10A, Fig. 5, corresponding to the shape of the flutes, a reciprocable carrier 14 adapted to support a blade 15 in an oblique or tangential position transverse to the wheel face, guides 32A, 32B for the ends of a stack of blades located to the rear of the blade 24 presented to the wheel, and a pusher plate 33 movable on the carrier 14, as the latter is retracted from the wheel, to move the bottom blank from the stack and to cause it, on the return of the carrier to replace the ground blade 24. Compressed air or other fluid is admitted by a valve 45, Fig. 7, to a cylinder 8 to move the carrier 14 towards the wheel, against the tension of a spring 22 attached to the upper arm 16 of a vertical lever pivoted at 17, Fig. 1, grinding being effected until the arm 16 contacts a stop 19. Fluid is simultaneously supplied to a cylinder 49 causing a piston rod 53 to move slowly outwards until it operates a reversing valve 54 to direct the fluid pressure to the opposite ends of the cylinders 18 and 49, the grinding period being thus controlled by the rate at which the piston rod 53 is extended. The carrier 14 is then retracted by the spring 22 until the lower arm 20 of the pivoted lever contacts a stop 21, the piston rod 38 of the cylinder 18 continuing its rearward movement until a stop 41, Fig. 5, on an upper plate 35 meets a stop 40 when the pusher plate 33 has been withdrawn from beneath the stack to allow the bottom blank to reach the carrier surface in front of it. As the lower arm 20 meets the stop 21, a bracket 60 operates a second reversing valve 55 to restore the connections to the main valve 45 so that the cycle is repeated. The 'initial outward movement of the piston rod 38 moves the upper plate 35 until the stop 40 contacts its attachment lugs 36, the pusher plate 33 advancing through the stack to move the blank into a slot previously occupied by the ground blade 24 which is thus pushed into a shoot 61 and delivered to a receptacle 62, Fig. 2. In accordance with the process referred to above, the shaped blanks have serrated edges which are used to form the ribbed edge of the wheel 10 at a low grinding speed by connecting a low-speed motor 65. Fig. 2, directly to an extension 66 of the wheel shaft ; after the wheel has been formed it is belt-driven at normal grinding speed by another motor 13.
Patent GB-495486-A (GB)
Title: Improvements in or relating to electric transformers
IPC: H01F29/06
Filed: 1937-06-03
Abstract: 495,486. Electric transformers. MARYLIN & CIE, GES., GEB. June 3, 1937, Nos. 15441 and 15442. Convention dates, June 4, 1936 and Jan. 13, 1937. [Class 38 (ii)] A transformer for supplying toy electrical devices has its windings arranged on a straight core, the turns of the secondary winding b being bared along an arcuate path f and a pivotally supported resilient lever arm d being arranged so that its end can be moved in contact with the secondary winding turns along the path f. The other end of the arm d moves over a contact segment h and may be arranged as shown to open the secondary circuit in one of its end positions. The secondary winding may be divided into several sections, one or more of which may be wound in a direction opposite to that of the others. A thermostatic switch s may be connected in the primary circuit and open this circuit when the primary current becomes too large or the temperature of the primary and or secondary winding rises above a desired value. The secondary winding may be shunted by a signal lamp o and may have tappings to which connection can be made through plug-in connections.
Patent GB-310215-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of leather cloth, rubber cloth and the like materials
IPC: D06N3/00
Filed: 1928-05-25
Abstract: 310,215. Jeffery, J. H. May 25, 1928. No Patent granted (Sealing fcc not paid). Coating webs. - A spreading knife or gauge for use in machines for coating webs, as in the manufacture of leather cloth or rubber cloth comprises a flat metal bar a the length of which is greater than the width of the web. The front part of the bottom face of the bar is flat or it may be slightly rounded as shown at b and from the point where the flat or slightly rounded portion ends, the back of the bottom face is sloped upwardly as at c to form an angle of from 30‹ to 80‹ with the front vertical edge. The " dope " is applied at the rear edge, and the knife may be inclined backwardly or forwardly.