baber/WOPTO huggingface dataset:
Patent GB-819588-A (GB)
Title: Improvements in or relating to the production of purified carbonaceous material
Inventor: MCGEER JAMES PETER
IPC: C01B31/00
Filed: 1956-08-02
Abstract: 819,588. Electric furnaces. ALUMINIUM LABORATORIES Ltd. July 25, 1957 [Aug. 2, 1956], No. 23836/56. Class 39(3) [Also in Groups III and XII] Fine particles of anthracite, bituminous coal or coke from coal or petroleum are heated to 1100‹-1700‹C by passing current through a fluidized bed 3 of the particles between electrodes 7, 8, the particles being fluidized by a slowly upwardly moving current of gas which is ineffective to oxidize the carbon of the particles. The gas may include volatile gas liberated from the particles and a chlorinating agent and passes up at 5 through a diaphragm 4 to a gas outlet 6. The calcined carbon particles may be mixed with pitch to form electrodes for furnaces. The apparatus may comprise a steel casing 1 surrounding a refractory lining 2 enclosing a cylindrical graphite electrode 8 arid a central pendant electrode 7. Particles of uncalcined coke or of anthracite are fed to the fluidized bed 3 of calcined particles through a charging port 9 and withdrawn through a diametrically opposite outlet 10. The entering particles may be pre-heated by the withdrawn particles in a solid-tosolid fluid bed heat exchanger either separate from the heater or in a separate zone of the same apparatus. The gas withdrawn is passed through a cyclone dust separator, cooled and re-circulated to the heater at just above atmospheric pressure. Excess volatile gas freed from the coke is removed and burnt. The current is preferably A.C. and the voltage is regulated to maintain the required temperature. The heating removes sulphur from the coke or coal particles, especially at higher temperatures. Some ash, especially iron and silicon components, is removed by treatment in the fluidized bed with a chlorinating agent e.g. chlorine gas, which may be added to the fluidizing gas or be used alone. The treatment of coke with chlorine may take place in batches or continuously and simultaneously with calcination or subsequently thereto, e.g. when hot. The heater may be of inverted conical shape so that the velocity of the rising gas drops, whereby a large range of sizes of particles is maintained fluidized.
Patent GB-225319-A (GB)
Title: Improvements relating to contacts or terminals for electrical switches
IPC: H01R4/30
Filed: 1923-09-25
Abstract: 225,319. Midland Electric Manufacturing Co., Ltd., and Barber, W. L. Sept. 25, 1923. Contacts for knife blade, switches of the type comprising a block 5 having a longitudinal hole for receiving the lead and a separate or integral spring member 6 for pressing the blade firmly against the side of the block, have this spring member projecting above the block and terminating with a reduced end formed with an outwardly curved sparking lip. An opening 9 is formed in the lower portion of the spring member so that any unevenness of the blade 7 due to arcing with the tip of the spring 6 comes opposite this opening when the block is forced home and permits undamaged portions of the blade to be gripped.
Patent GB-708555-A (GB)
Title: Improvements in or relating to the manufacture of twist drills
Inventor: GROSSMANN JULIUS HERMANN
IPC: B23C3/32
Filed: 1951-10-13
Abstract: 708,555. Copy-milling. NED GROSSMAN MIJ. N.V. Oct. 13, 1951, No. 23908/51. Class 83 (3) A machine for forming twist drills comprises four side milling cutters 3, 5 for simultaneously milling the flutes and the clearance spaces on a drill 1. The cutters are rotated by motors 9. The work is rotated and fed by a gear 12 and a helical cam 14. A master' cam 15 actuates eccentrics surrounding the spindles of the cutters 3 and cams surrounding the spindles of the cutters 5 act to lift the cutters clear of the work at the completion of a cutting operation and also to control the depth of the flutes.
Patent GB-1098865-A (GB)
Title: Improvements in or relating to electro-magnetic lenses and to apparatus including such lenses
IPC: H01J37/141
Filed: 1965-06-04
Abstract: 1,098,865. Electron beam focusing apparatus; electromagnets. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 4, 1965 [June 6, 1964], No. 23933/65. Headings H1D and H1P. An electromagnetic lens of long focal length and low spherical aberration is obtained by having certain lens parameters specified in terms of the " half-value length " l which is defined with reference to the inflection points of the curve of axial magnetic field strength Bo and which, as shown, may be approximately equal to the length of the lens. The length l is specified as 1¢-4¢ times the distance a between the focal plane 5 and the adjacent end of the lens and the inside diameter of the lens coil 11 is specified as less than or equal to <SP>1</SP>/ 3  l. The coil 11 which consists of resin-coated wire may be axially compressed to increase the filling factor is wound on a copper tube 21 and is surrounded by a copper sheath 22 electrodeposited on a silver layer. A cooling jacket 23 with a cooling pipe 25 is provided and this jacket may be surrounded with an iron sheath 26. In modifications : the lens may be surrounded by a hollow cooling jacket filled with low-boiling-point liquid, e.g. benzene; the coil may taper and the turns density varied; a high permeability tube may be inserted at one end to obtain the correct value of l; the coil may comprise several layers double wound with a thinner wire than the current wire filling the grooves between successive turns of the current wire; and the separate layers of turns may be interconnected by wires all passing along the outside of the coil. The lens may be used in beam working apparatus; X-ray microprobe analyzers, where the lens focuses the beam on the specimen after prefocusing by a conventional iron-clad lens; electron microscopes where the lens serves as a condenser lens inserted in the entrance cavity of a conventional objective lens and in which arrangement the lens may be provided with stigmator coils housed in the lens cooling jacket; and in electron microscopes adapted for diffraction analysis by inserting the lens between the objective and projector lenses.
Patent GB-254150-A (GB)
Title: Improved manufacture of abrasive articles
IPC: B24D3/18
Filed: 1925-09-25
Abstract: 254,150. Wade, H., (Carborundum Co.). Sept. 25, 1925. Porous compositions.-Bonded abrasive articles are made by mixing abrasive grains, such as fused aluminous grains, a bond, such as Albany clay and plastic ball clay, and comminuted non-volatile organic particles which contain such a small proportion of water that they do not tend to swell during burning, for example oak-wood flour, pressing the mixture to the desired shape and removing the organic particles by burning the article.
Patent GB-1186774-A (GB)
Title: Improvements in and relating to Filters and Filtering
IPC: B01D29/01
Filed: 1967-05-24
Abstract: 1,186,774. Liquid filter. HYDROMATION ENG. CO. 24 May, 1967 [25 May, 1966; 20 Feb., 1967], No. 24035/67. Heading B1D. A filter for water comprises a bed of granular polyvinyl chloride 18, of particle size 0.20 to 0.50 mm. and specific gravity 1.0 to 1.6, confined between wire mesh or nylon cloth members 20, 22, with perforate tubes 28, 30 for supplying backwashing filtrate embedded therein. In Fig. 1, a single filter element of hollow annular form encloses a bed of radial thickness 6 to 12 inches, filtering flow is inwards and tubes 28, 30 are rotated during backwashing by piston-cylinder motor 54. Liquid is delivered from a reservoir (71) by a pump (73) to inlet 70, filtrate flows from outlet 74 to a reservoir (79) by line 76. A pressure monitor in housing 12 operates solenoid valves and pump motors when the filter clogs, stopping the liquid inlet and delivering backwashing filtrate to inlet 64 and outlet 74 simultaneously, the bed being thereby fluidised and contaminated liquid discharging by outlet 82 to a further reservoir (85). The cleaning continues until a timer in the control circuit (Fig. 3, not shown) restores the status quo. In Fig. 1A (not shown) the filtrate outlet acts as a further contaminated backwash liquid outlet, and backwash liquid is delivered only to tubes 28, 30. Tubes 28, 30 could reciprocate vertically instead of rotating, or may be fixed as in other embodiments. Fig. 1 shows a filter element in a closed housing, but in Figs. 4, 5 (not shown) the element is located in an open tank with an inlet overflow (111) and an outlet suction pump (116) ,  Figs. 6, 7 (not shown) illustrate several annular elements in a common housing, with a venturi device whereby air is drawn into the backwashing liquid. Fig. 8 (not shown) illustrates a flat, downward flow element, in which outlet (174) serves for filtrate and dirty backwash liquid.
Patent GB-233234-A (GB)
Title: Improvements in packages or containers for tobacco or other similar commodities
IPC: B65D75/38
Filed: 1924-10-10
Abstract: 233,234. Peterson, J. Oct. 10, 1924. Lined folding boxes; bands, strengthening.- Relates to packages or containers for tobacco or like substances. A reinforcing and securing strip of paper &c. is inserted within an inner composite wrapper so as to secure adhesively the longitudinal side folds and bottom tuck folds, and the opening is folded down so as to present a flat surface. As shown, the package is formed by advancing a plunger 6, Fig. 4, so that a strip 9, 10 of paper is applied to the forward end and narrow sides, and is covered on the outside by adhesive g. The continued advance of the plunger applies the part 9 of the strip to the centre of a composite blank S comprising paper P and foil F united by strips a of adhesive..The parts 13, 14 and flaps 1 are turned down upon the flat sides of the plunger as shown in Fig. 6 and end tucks 16 are formed, after which the side flaps 15 are turned down on to the adhesive strip 10. A further advance of the plunger envelops the container in an outer wrapper W, Fig. 9, end tucks and side flaps 20 being formed as in the previous operation. The plunger is withdrawn, the container is filled with tobacco &c., and the flaps 1 of the inner composite wrapper turned down upon the contents. The outer wrapper W is then folded down upon the flaps in the usual manner.
Patent GB-267026-A (GB)
Title: Improvements in blades or shares for horse hoes
IPC: A01B35/20
Filed: 1926-09-29
Abstract: 267,026. Martin, W. E. Sept. 29, 1926. Tools, construction of; disc-tool implements; implements with adjustable tool frames.-A blade for a horse-hoe is made from a strip of metal of triangular section by bending it on an oblique line so that the plane of one part is perpendicular to the plane of the other part, the forward part b being forwardly and upwardly inclined in a vertical plane in use and the rear part a being laterally and rearwardly inclined in a horizontal plane. The sharp edge is the lower edge of the part b and the forward edge of the part a. The part b is attached to the downwardly and rearwardly curved lower end of a stem d. A disc e mav be located against the inner side of the blade between it and the crop. Two discs may be mounted between a right-handed blade and a left-handed blade on an axle f supported in a bearing g on a stem h.
Patent GB-703228-A (GB)
Title: Improved apparatus for the automatic pressure-testing of tubes or the like
IPC: G01M3/28
Filed: 1952-09-26
Abstract: 703,228. Testing hollow tubes. HOLZER, C., BUSHE, M. VON, and HENSEL, L., [trading as KIESERLING & ALBRECHT, T.]. Sept. 26,1952 [Sept. 28, 1951], No. 24202/52. Class 106 (2) Apparatus for pressure-testing tubes comprises two rotatable drums on which are arranged a plurality of pressure cylinders controlled through an adjustable pressure reducing valve and accommodating piston rods carrying receiving heads for the tube ends. The drawing shows one cylinder only 3 mounted between end plates 1, 2 of the drum in which slides a piston 8 carrying a piston rod 7 and tube receiving head 5. The tube receiving head 5 supports tube sealing means 6 with a rubber sealing washer 14 which engages the end of the tube 4 to be tested. Pressure is applied to the sealing washer via a conduit 12. Water, and water under pressure, for filling and testing the tube 4 is supplied via conduit 11 and chamber 15. In order to prevent escape of water if the testing position is not occupied by a tube 4 a valve 19 is provided, if no tube is present the valve and head 5 are forced out further than normal until the end 22 of the valve 19 hits an abutment 23 when it is arrested, the head 5 continues to advance until the ball 24 closes the chamber 21 and the associated passage 11 so that no water can enter the chamber 15. Inside the hollow piston rod 7 there is a further inner piston 16 rigidly connected to the rotating drum 1, 2 by means of a connecting rod 17. The diameter of this inner piston corresponds approximately to the internal diameter of the tube 4 so that the water under pressure does not subject the tube 4 to any additional axial stress since these two forces neutralize one another. The piston 16 also ensures that water under pressure in the tube 4 exerts no opposite pressure on the piston 8 acted on by compressed air. If the tube diameter is changed the piston 16 and cylinder liner 18 can be removed and replaced by others corresponding to the new tube diameter. The left and right hand drums of the machine are the same except that means for admitting water and water under pressure is provided at one end only.
Patent GB-718175-A (GB)
Title: Improved draw-off mechanism of straight bar knitting machines
Inventor: MONK SAMUEL ARTHUR
IPC: D04B15/88
Filed: 1950-10-04
Abstract: 718,175. Knitting-machines. MONK (SUTTON-IN-ASHFIELD), Ltd., S. A. Oct. 1, 1951 [Oct. 4, 1950], No. 24272/50. Class 74 (2). The take-up roller 1 of a straight-bar machine is driven by pawl and ratchet mechanism, the pawl 3 being mounted on a lever 4 actuated through a spring 12 from a truck lever 5 which is oscillated by a cam 8. The spring 12 is connected to the lever 4 by being attached to a knob 15, which is adjustably positioned in a slot 16 in the lever 4, so that the effective force of the spring on the take-up roller may be varied. Reverse stop pawls 17, 18 are provided to engage the ratchet wheel, and during fashioning they are engaged by arm 13 of lever 5 so as to release the ratchet wheel and relieve the tension of the fabric. This engagement of the pawls 17, 18 is achieved by shogging the cam shaft carrying the cam 8 and bringing a further cam into engagement with the truck on the truck lever 5.
Patent GB-947481-A (GB)
Title: Improvements relating to a relief valve device in vacuum braking apparatus
Inventor: MARSH GERALD CRANTON
IPC: B60T13/46
Filed: 1959-07-15
Abstract: 947,481. Vacuum braking systems. GRESHAM & CRAVEN Ltd. June 21, 1960 [July 15, 1959], No. 24277/59. Heading F2F. Vacuum braking apparatus comprises at least one brake cylinder 14 having an upper chamber 16 connected with an exhauster pipe 11 and a lower chamber connected with a normally evacuated train pipe 12, and a controllable relief valve device 19 for determining the degree of vacuum in pipe 11, the setting of device 19 being variable steplessly in proportion to the reduction in train pipe vacuum. The device 19 comprises a valve 20 biased by a light spring to separate atmospheric chamber 23 from chamber 22 connected with upper chamber 16, and a check valve 21 closed by its own weight to separate chamber 22 from pipe 11 to maintain vacuum in chamber 16 and reservoir 18 at a value slightly less than the exhauster pipe vacuum. A plunger 20a loaded by an adjustable spring 31 away from valve 20, has a diaphragm 27 subject to train pipe pressure via pipe 30 and exhauster pipe pressure via pipe 29, and a diaphragm 28 subject to exhauster pipe pressure and atmosphere. On brake release, driver's valve 13 interconnects pipes 11, 12; the plunger 20a is subject to the pressure differential across diaphragm 28 acting against spring 31; should the exhauster pipe vacuum exceed the normal value set by spring 31, then valve 20 is unseated to dissipate the excess. In the applied position of driver's valve 13, atmosphere is admitted to train pipe 12 and device 19 is loaded to assist spring 31, the exhauster pipe vacuum building up as a higher vacuum is needed to unseat valve 20, this increased vacuum in chamber 16 creating a stronger brake application. A moderating valve 34 enables flow out of reservoir to be more restricted than flow to the reservoir 18 to ensure that vacuum in chamber 16 increases in preference to that in reservoir 18.
Patent GB-247621-A (GB)
Title: Machine for cutting and buttering slices of bread
IPC: B26D7/34
Filed: 1924-10-13
Abstract: 247,621. Steinkellner, W. Oct. 13, 1924. Cutting slices in succession.-A bread slicing and buttering machine comprises a table along which the loaf is fed by a pusher 32, a knife 34 having a combined downward and longitudinal motion in one plane, a reciprocating butter receptacle 53 from which the butter is pressed by a plunger and means for varying the time and vertical extent of the butter extrusion according ta the sectional shape of ths loaf. The machine is operated by a handle 11 on a shaft 10 carrying a bevel wheel 12 which drives a bevel wheel 6 attached to the flywheel 5. A pin 13 on the flywheel 5 works in a slot 14 on a lever 16 pivoted at 15 and reciprocating a spring-returned rod 19 by engaging at one of its ends a slot in the rod. The rod 19 actuates a pawl lever 22 which operates a ratchet wheel 24 on the feed screw 29 which intermittently advances the pusher plate 32. The other end of the lever 16 is slotted at 35 to receive a vertical bar 36 which is attached to a slide 40 having guide rollers 43 which run in U-shaped tracks in the casing 44. The slide 40 has an inclined rib 52 which engages a pin 51 on the knife 34, the knife having other pins 48 which work in oblique slots 47 in the casing 44. Movements of the slide to the right, Fig. 1, depresses the knife 34, which moves also longitudinally along the slots 47. A spring 50 returns the knife on the reverse movement of the slide 40. The buttered slices drop on to a grating 109 and slide forward and crumbs drop into a drawer 110.
Patent GB-1205888-A (GB)
Title: Improvements in or relating to curved mould continuous casting machines
Inventor: MOLOCHNIKOV MIKOLAI VLADIMIROV
IPC: B22D11/08
Filed: 1968-05-22
Abstract: 1,205,888. Continuous casting. VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY I PROEKTNO-KONSTRUKTORSKY INSTITUT METALLURGICHESKOGO MASHINOSTROENIA. 22 May, 1968, No. 24405/68. Heading B3F. A rigid starter bar 4 of an arcuate path continuous casting machine is held (when not operative) by the side of the casting axis by a catch 2 engaging a recess 3 in the starter bar 4. In operation the starter bar is moved upward by rollers 8. As the catch 2, at the end of a lever 5 and urged by a counterweight 6, engages the recess 3, a limit switch (not shown) is actuated and the rolls 8 are stopped. The starter bar is released by operating an hydraulic cylinder 7 which tilts the lever 5 to disengage the catch.
Patent GB-492078-A (GB)
Title: Improvements in apparatus for raising and forcing liquids by air pressure
IPC: C10B53/02
Filed: 1937-09-08
Abstract: 492,078. Cleaning gear cases &c. AERO EQUIPMENT CORPORATION. Sept. 8, 1937, No. 24473. Convention date, Sept. 15, 1936. [Class 116] [Also in Group XXVIII] An apparatus for cleaning gear cases &c., in which the cleansing liquid is injected and withdrawn by air pressure, is provided with a transparent chamber 38 in the liquid pipe 52. The apparatus comprises a container 10 having an air pressure pipe 14 connected to an injector device V. When the valve 20 is opened, air passes through the injector and out of the opening 26 drawing out the air in the chamber 10 and drawing in liquid through the pipes 52, 32. When the opening 26 is blocked, the air under pressure forces the liquid in the chamber through the pipe 52. The manner in which the cleaning operation is proceeding is determined by observing the clarity of the liquid passing through the transparent chamber.
Patent GB-498813-A (GB)
Title: Improvements in hair-curling devices
IPC: A45D2/32
Filed: 1938-08-19
Abstract: 498,813. Hair-curling devices. GOTTFRIED, B. Aug. 19, 1938, No. 24488. [Class 131] In hair curlers wherein a spindle b is rotated relatively to a tubular casing a, a cap c is secured to the spindle and is provided on its inner circumference with ratchet teeth c<1> which co-operate with an outwardly - urged spring pawl bl secured to the outer circumference of the casing a. Alternatively, the casing may carry the teeth and the cap the pawl. The casing may have a tapered or stepped form. A releasing extension may be formed on the pawl.
Patent GB-410374-A (GB)
Title: Improvements in or relating to thermionic valve apparatus
IPC: H03G3/22
Filed: 1933-09-04
Abstract: 410,374. Valve circuits for wireless reception. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Sept. 4, 1933, No. 24491. Convention date, Sept. 3, 1932. [Classes 39 (i) and 40 (v).] The potential developed across a resistance 15 by the anode current of a leaky-grid detector valve 13 is applied to the control grid 3 of a high-frequency amplifying valve 1 to vary the magnitude and /or sign of the internal impedance thereof and hence the damping of its anode circuit 10, 11 which is coupled to the grid circuit 12 of the detector 13. The valve 1 comprises also a positively-biassed screening grid 4, a positively-biassed perforated anode 5, a negatively-biassed "piling-up" grid 6 and an outer anode 7, in the order named, the latter electrode being positively biassed to a less value than that of the anode 5. The control potentials may alternatively, or in addition, be applied to the piling-up grid 6.
Patent GB-910813-A (GB)
Title: Improvements relating to electrical appliances
IPC: H01H3/20
Filed: 1961-07-07
Abstract: 910,813. Cam-operated switches. HOOVER Ltd. July 7, 1961 [July 15, 1960], No. 24710/61. Class 38 (5). [Also in Group XXIII] An electrical appliance includes a body having an elongated handle pivotally connected to it to move between operative and inoperative positions, and arranged to actuate a switch to switch off the appliance when the handle is moved to an inoperative position, and further comprises a U-shaped bracket 16, Fig. 2, mounted on the body and affording a bearing for a pivot shaft 21 secured to an arm 31 of the handle bail, an end 22 of shaft 21 extending through hub 24 of a switch actuating member 25. Cam surface 75 of member 25 presses in plunger 74 of switch 70 to open the switch when the appliance handle is moved to its inoperative position, Fig. 3. Shaft 21 also carries a locking sector 56 which co-operates with a foot-operated locking lever 55, detent 57 of sector 56 engaging surface 64 of an arm 63 of lever 55 to lock the handle in its inoperative position. Leg 19 of bracket 16 supports switch 70, and also supports lever 55 via tension spring 66.
Patent GB-155672-A (GB)
Title: New or improved method of and means for tilting the bodies of vehicles such as railway wagons and the like
IPC: B61D9/02
Filed: 1919-10-09
Abstract: 155,672. Balthasart Freres, A. & M., and Marcq, C. Oct. 9, 1919. Tip-wagons.-In a railway tip-wagon of the type in which a number of pivots 2, 4, 5 on the body 1 successively engage a series of stepped recesses 8, 9 on the end supports 3, final tipping movements of the body are arranged to take place about one or more axes provided by the underframe 6, or by a support on the underframe, or by the wheels 7. In the construction shown, the wagon body, after tipping about the pivot 5 to the position Y, tilts to the position Z about the wheels 7, the movement being limited by the pivot pins 5 engaging the hooked ends 11 of a curved safetybar 10. In the normal position, accidental tilting is prevented by means of a round locking-bar 12 with bent ends which passes between the support 3 and strengthening-webs 13 and engages over the pivot pins 4, being held in position by a catch 14 on the support engaging a notch in the bar. The bar is released by turning it until the bent ends are upwards, and then sliding it clear of one or other of the pins 4 according to the side to which tipping is desired.