baber/WOPTO huggingface dataset:
Patent GB-728217-A (GB)
Title: Improvements in the dosing of a liquid, such as water, with a reagent
IPC: C02F1/68
Filed: 1951-05-28
Abstract: 728,217. Filters; purifying liquids. SUTCLIFFE SPEAKMAN & CO., Ltd., and EDWARDS, W. E. June 25, 1952 [May 28, 1951], No. 12454/51. Class 46. [Also in Group II] In method of dosing liquids, e.g. water, with a reagent, e.g. a chlorinating agent, the liquid to be dosed is passed into an auxiliary container from which it is periodically siphoned into a main container, a sealed reagent container being connected in parallel with the auxiliary container and the main container by a conduit, so that air pressure built up in the auxiliary container is communicated to the reagent container and a dose of reagent proportional to the volume of liquid siphoned from the auxiliary container into the main container is passed to the main container prior to the siphoning of the liquid from the auxiliary container. Incoming liquid at 19 after filtration through sand 4 passes up vent-pipe 5 and down pipe 5a into an auxiliary container 2 furnished with an automatic siphon 20 above its outlet 24. As the level of the liquid rises the open end of a bell 13 on a pipe 11 is sealed. Further rise in the level causes air pressure proportional to the height of the rise to be exerted upon reagent (from a container 10) standing in pipe 11. This pressure causes the reagent to be forced back into the container 10. The level of the reagent in a pipe 14 is not affected because of the vent 22. When reagent has receded to the junction of pipes 11 and 14 the pressure is released by ejection of reagent from pipe 14 into the container 3. The level of reagent in pipes 11 and 14 then reverts to the level of atmospheric pressure, that is, the lower end of a bell 12 extending into the container 10. Further rise of liquid in the bell 13, until the siphon 20 operates, causes further air pressure in the pipe 11 but not sufficient to cause further ejection of reagent. The treated liquid may leave the main container 3 by outlets 16a and 17 or may be further purified by activated carbon 6 and leave by pipe 16 and outlet 17. The reagent container 10 may be mounted on a balance which operates a valve to cut off the supply of incoming fluid when the reagent container is empty.
Patent GB-792152-A (GB)
Title: Improvements in or relating to dry cells
IPC: H01M6/08
Filed: 1955-04-29
Abstract: 792,152. Primary cells. EVER READY CO. (GREAT BRITAIN), Ltd., and GIBBINS, A. E. March 14, 1956 [April 29, 1955], No. 12548/55. Class 53. A dry cell has an impermeable washer 12 embedded in the medial area of the seal 11 between the carbon electrode 4 and the container electrode 1. The washer may be of wax- or resin-impregnated card and the seal is preferably of bitumen. The cell is surrounded by a polythene-laminated spirally wound tube 9 which is curled over at 10 together with the container electrode to secure the outer periphery of a metal cover 8. An insulating washer is inserted between the metal cover 8 and the brass cap 5 on the electrode 4. An additional wax-impregnated card washer 18 may be incorporated.
Patent GB-611044-A (GB)
Title: Improvements in or relating to wheels of turbines and the like machines
IPC: F01D5/30
Filed: 1945-05-18
Abstract: 611,044. Making turbines. SOC. RATEAU. May 18, 1945, No. 12587. Convention date, March 3, 1944. [Classes 83 (ii) and 83 (iv)] [Also in Group XXVI] Welding.-In welding blades to turbine rotors the blade is first formed with an integral enlarged shoe c having a cylindrical end face and is then electrically butt-welded to the wheel rim. The blade may be formed from a drawn bar in which an end is swaged to form the shoe and may then be gripped in a pair of jaws constituting one electrode of a welding machine. The rotor disc is clamped between two rings which form the second electrode and the blade is brought against a part of the rotor periphery to be butt-welded thereto. The blade e, Fig. 3, has parallel grooves d in the undersurface of the root to constrict the area of contact during welding. It is gripped by the jaws n of a welding machine which has bearings h and h<SP>1</SP> to support a shaft g having a rotor disc f integrally forged thereto. The disc is clamped between two rings i and j at a point near the weld zone and one of the discs j is provided with a locking screw k to secure to the shaft. Indentions l in ring j co-operate with a spring-pressed finger m to index the rotor and correspond in number to the blades to be welded. Where hollow rotor discs are employed the root has a medial groove s, Fig. 4, in communication with the hollow portion t of the blade and the air passage q of the rotor disc when welded thereto, forming an air cooling system.
Patent GB-219763-A (GB)
Title: Improved razor strop
IPC: B24D15/08
Filed: 1923-05-11
Abstract: 219,763. Wentzell, C. E. May 11, 1923. Strops for razors have the surface provided with longitudinal zig-zag ribs 4 which may have the cross-section shown in Fig. 2.
Patent GB-493502-A (GB)
Title: Amalgam printing process
IPC: B41C1/16
Filed: 1938-04-28
Abstract: 493,502. Printing-machines. RENCK, H. April 28, 1938, No. 12692. Addition to 481,410. [Class 100 (ii)] In printing from amalgamated printing- plates, the amalgam on the plates is replenished by means of a roller, independent of the inking- apparatus, which periodically or continuously makes contact with a plate or roller made of or covered with a cast amalgam as described in the parent Specification. The roller replenishing is preferably of rubber.
Patent GB-1449886-A (GB)
Title: Mine roof support equipment
IPC: E21D23/00
Filed: 1973-03-16
Abstract: 1449886 Ventilating mines COAL INDUSTRY (PATENTS) Ltd 1 March 1974 [16 March 1973] 12738/73 Heading F4V [Also in Divisions E1-E2] In a mine roof support assembly comprising at least one hydraulic prop 10 supporting a roof canopy 11, apparatus 20 for inducing an air flow is arranged along the said canopy for directing fines into the goaf. The apparatus 20 is in the form of a tube, open at one end 23 and with a hinged flap at the other end. A fluid outlet nozzle is disposed on a radial arm adjacent the open end 23 and a jet of water issuing therefrom induces a flow of air through the tube which is provided with a wedge-shaped inlet slot 27. For numerous minor details concerning number and disposition of nozzles, shapes of tube and slots &c. the Specification should be referred to.
Patent GB-234131-A (GB)
Title: Improvements in the method of, and apparatus for, nobbing herringbone bevel gears
IPC: B23F7/00
Filed: 1925-05-15
Abstract: 234,131. Klingelnberg S÷hne, W. F., Schicht, H., and Preis, G. May 16, 1924, [Convention date]. Gear-cutting.-Herring bone bevel gears having tooth portions Which are longitudinally of involute form are generated by means of a pair of tapered worm hobs 1, 2, arranged so that their operative portions 3, 4, represent an imaginary crown gear engaging the blank 5, the tool head being rotated about the blank pitch-cone apex 34 in timed relation to the rotation of the blank to generate the tooth profiles. The cutters, which are of opposite hand and rotate in opposite directions, are mounted on spindles 6, 7, carried in blocks supported by inclined planes 10, 11, on a turntable 12 carried by a slide 13 which is adjustable from the centre of the crown wheel represented by the tools. The plane 18 containing the cutter axes is tangential to the base circle K of the involutes 21, 22 and is inclined at an angle a to the centre line 23 of the slide 13. For cutting the mating wheel, the turntable 12 is moved to place the cutters in the, dotted position in Fig. 3, the angles a and # being equal. The cutter 2 is provided with an adjusting device 29 to facilitate accurate setting of the cutter teeth 3, 4. Specifications 230,884 and 230,885 are referred to.
Patent GB-1285001-A (GB)
Title: Improvements in or relating to collapsible containers
Inventor: JOHN KENNETH STEPHEN
IPC: B65D19/16
Filed: 1970-03-17
Abstract: 1285001 Collapsible bins; box pallets R & H WALE (EXPORT) Ltd 19 April 1971 [17 March 1970] 12811/70 Headings B8H and B8P A collapsible fruit bin comprises a tray having shallow walls 2 and 3, bars 6 secured to and projecting outwardly from opposed walls 2, and deep collapsible walls 8, 12 located above the shallow walls 2 and 3. The bars 6 provide shoulders beneath which slings or the prongs of a fork-lift truck can be inserted. The collapsible walls may be detachable, Fig. 1, from the shallow wall 2, 3 and when detached stored inside the tray or they may be hinged to the shallow walls 2, 3 such that when collapsed a pair of opposed collapsible walls overlie the other pair of collapsible walls. When the collapsible walls 8, 12 are detachable, they are secured to the tray by bayonet-like interengagement between pairs of mating male and female locating plates (9, 10, Fig. 2) provided on the upper and lower edges of the tray and the collapsible walls 8, 12 respectively. The collapsible walls may be latched together at the corners at the top of the bin or secured together by screws passing through plates into sockets in the edges of the walls 8. Small gaps for air circulation are provided between the base 1 of the tray and the shallow end walls 3.
Patent GB-344276-A (GB)
Title: Improvements in the manufacture of wall sheathing tiles and like surface coverings
Filed: 1930-04-25
Abstract: Wall tiles and like surface coverings, made of synthetic resin, are moulded in a press in which one platen is heated to a higher temperature than the other, thus producing an article having a hard polished front surface and a porous softer back layer suitable for affixing to the wall.  Suitable fillers may be used in the resin and the backs of the tiles are moulded with keying projections and recesses.  As an example, 180 parts by weight of phenol condensed with 180 parts of formaldehyde in the presence of 6 parts of dicyandiamide, is mixed with 50 parts of wood flour to 50 parts of resin content and is subjected for three minutes to a pressure of 1500 lbs. per sq. inch in a mould of which the upper platen is heated to 160 DEG  C.  The lower platen meanwhile is cooled by water circulation so that its temperature does not exceed 110 DEG  C.
Patent GB-219122-A (GB)
Title: Improvements in and relating to electric devices for singeing hair and like purposes
IPC: A45D26/00
Filed: 1923-05-14
Abstract: 219,122. Barnard, J. W., and Dawkins, T. C. May 14, 1923. Hair-cutting appliances, barbers' and like; hair curling, crimping, and frizzing appliances.-In an electrical heating device for singeing hair and like purposes wherein current is supplied through a switch and a variable resistance to a heating element held between the forked arms of a holder, the holder is formed from a casting 3, Fig. 1, of aluminium made in two parts with a circular chamber 9 at the junction of the handle 4 and the forked arms 2 between which the heating element' 1 is held. The chamber 9 contains the regulatable resistance which comprises a number of mica plates upon which a resistance wire 11, Fig. 5, is wound, the ends of the wire 11 being connected to contacts 12 and a strip 13 mounted in a block 14 of fibre, vulcanite, &c. A slider 16, provided with a knob 17 projecting through a slot 18 in the chamber 9, works in a groove 15 between the contacts 12 and the strip 13, and is moved to regulate the temperature of the heating element 1.
Patent GB-216872-A (GB)
Title: Improvements in or relating to apparatus for eliminating stalks from tea
IPC: A23F3/00
Filed: 1924-05-26
Abstract: 216,872. Myddelton, R. F. May 29, 1923, [Convention date]. Separating by pitted surfaces and on inclined endless bands.-A device for separating stalks from a mixture of stalks and large tea, consists of a wood or metal surface having parallel grooves a inclined towards the end and of a width about equal to the diameter of the stalks. The surface b between the grooves is inclined so that one side of the grooves is lower than the other. Ridges d, dd, of varying depth may be provided on the surfaces b and stops c may be provided in the grooves. In operation, the surface is slightly tilted so that the grooves are open towards the higher end on which the mixture of tea and stalk is fed. Oscillating movement is imparted in the direction of the grooves and the stalks are trapped in the grooves while the tea passes off at the lowed ends. In a modification, a number of narrow surfaces are mounted on an endless travelling band which is so disposed that the upper run moves upward at an inclination to the horizontal. The supporrt for the band is reciprocated at right angles to the length of the band and the stalk and tea are delivered at the upper and lower ends respectively of the run. side plates being provided to prevent lateral discharge of the material. Specification 181,941 is referred to.
Patent GB-353521-A (GB)
Title: Improvements in and relating to thermo-electric batteries
IPC: H01L35/00
Filed: 1930-04-25
Abstract: 353,521. Thermo-electric batteries. NEALE, J., 15, Acacia Road, St. John's Wood, London. April 25, 1930, No. 12863. [Class 53.] The couples 3, 4 of a thermo-electric battery, Fig. 3, are arranged end to end and the complete length is bent into zig-zag or sinuous form in such a way that the hot and cold junctions 12, 14 do not lie on the bends. The lengths of the elements are inversely proportional to their specific resistances. Several such banks of couples may be arranged parallel to one another over a furnace 9 as shown in transverse section in Fig. 2, the hot gases passing up ducts 10 and between the layers of elements into ducts 11 communicating with the outlet flue 13. The ducts 10, 11 are formed as shown in plan in Fig. 1 by means of partitions 16 which enclose the hot junctions 12. Sloping baffles may be arranged in the ducts to guide the hot gases through the spaces between the layers of couples on one side only of the ducts. The couples may be arranged radially, the ducts being then of annular form.
Patent GB-106214-A (GB)
Title: Improvements in or relating to Net Supports for Lawn Tennis and the like.
IPC: A63B71/02
Filed: 1916-09-15
Abstract: 106,214. Ayres, Ltd., F. H., and Kearns, W. T. Sept. 15, 1916. Net supports.-A support for a lawn-tennis net comprises a base e into which fits a postcarrying socket c provided with two segmental lugs d. The lugs d pass through correspondingly shaped apertures g in the base and the socket is locked by a partial rotation thereof. The lugs may be of different sizes to ensure correct insertion of the socket, and indication marks may be placed on the socket and on the base. The post may be of the cylindrical or diagonal type.
Patent GB-401295-A (GB)
Title: Improvements in the manufacture and production of solid greases
IPC: C08L91/08
Filed: 1932-05-06
Abstract: Solid lubricating-grease is made by mixing a lubricating grease with a high molecular polymerization product of hydrocarbons, other than iso-olefines, which are capable of forming a polymeric homologous series, or with products obtained from the polymerized hydrocarbons by hydrogenation or isomerization.  Suitable addition products are made by polymerizing styrene, indene, terpenes, cyclohexene, tetrahydronaphthalene, or by hydrogenating the polymerization products of styrene, rubber, diolefines such as butadiene, or cyclo rubber.  These polymerization products are mixed with the saponification products of fats or oils with alkalies, alkaline earths, aluminium oxide or lead oxide; or with the saponification products of bleached montan wax mixed with mineral tar or other oils as described in Specification 317,630, [Class 91, Oils &c.].  In examples, an oil obtained by polymerizing cracked paraffin wax with aluminium chloride, is mixed with tallow or bleached montan wax and caustic soda solution, and polymerized hexene, turpentine or rubber is added. The mixture is stirred and heated to drive off the waters. Specifications 379,717 and 399,527 are referred to.  According to the first Provisional Specification polymerization products of iso-olefines such as iso-hexene and isobutylene may also be used.
Patent GB-634919-A (GB)
Title: Process for the treatment of baker's yeast
IPC: C12N1/04
Filed: 1946-05-01
Abstract: Bakers' yeast separated from the wort in which it has grown and retaining at least 75 per cent of moisture, e.g. a suspension containing 40-30 parts of water and 60-70 parts of yeast, is frozen at a temperature below 0 DEG C but not so low as to destroy the cells.  The freezing may be undertaken after packaging the yeast suspension.  A yeast "snow" may be prepared by spraying the yeast suspension into air or other gas at the temperature below 0 DEG C. The Specification as open to inspection under Sect. 91 comprises also any partial separation of the yeast from the wort, and drying of the yeast, before the cooling, to 15-40 per cent water content. This subject-matter does not appear in the Specification as accepted.
Patent GB-945474-A (GB)
Title: Improvements in and relating to substituted hydrazines
Inventor: DRAIN DAVID JOHN
Filed: 1959-04-18
Abstract: The invention comprises substituted hydrazines of the general formula: R2-X1-CH2-CHR1-NH-NH2 wherein R1 represents a hydrogen atom or a lower alkyl radical, X1 an oxygen or a sulphur atom or the group NH and R2 a phenyl radical substituted by hydroxyl, lower alkyl, lower alkenyl, lower alkoxy, lower alkylene dioxy groups or halogen atoms or a naphthyl group or (when either R1 is a lower alkyl group or X1 is a sulphur atom or the group NH) an unsubstituted phenyl radical, together with their acid addition salts and the preparation thereof by reacting hydrazine with a compound R2-X1-CH2CHR1-Y where Y is a halogen atom of atomic weight greater than 20 or a group -OSO2R5 where R5 is an alkyl or aryl radical. The term "lower" indicates 1-4 carbon atoms in the groups so qualified.
Patent GB-163303-A (GB)
Title: Improvements in or relating to colour printing
IPC: B41F17/00
Filed: 1921-05-10
Abstract: 163,303. Lakos, L. May 17, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Inking-apparatus; platen machines; printing in several colours.-A machine for printing wallpapers, fabrics, &c. in several colours comprises a plurality of single-colour printing plates arranged round the circumference of a drum below which the paper &c. is supported on a heated table, the drum being rotated to bring the plates successively into position for printing, and lowered to make the impression. After an impression has been taken from all the plates, the paper &c. is fed forward to bring the next portion into position for printing. The printing plates a are secured to the end plates b of the drum, which is mounted on a shaft c carried by rocking levers d, said shaft c being guided in slots k. The drum is continuously rotated by the gears e, f, g from a shaft h on which the rocking levers d are loosely mounted, the intermediate gear f carrying a cam i acting against a fixed guide so as to lower the drum for taking an impression as each printing plate a comes into printing position over the heated table w on which the web x is supported. Over each printing plate is provided a colour trough l which is caused to remain in upright position by its own weight or by gearing. Each colour roller m is guided by angled slots n in the end plates of the rotating drum so that at the highest position of a particular printing plate its colour roller is moved by a fixed cam o outwardly along the radial part of the guide n and then rolls across the printing plate, being then moved back again by a second fixed cam p. The web x is fed forward intermittently by a feed roller t of adjustable diameter driven by a gear s actuated by a gear segment r on a large gear wheel q in mesh with the driving gear g. In preparing the series of single-colour printing plates, the pattern is drawn by an artist on a printing plate and then engraved, a print from the plate being taken on transfer paper. This print is then transferred to another plate, from which all parts are wiped out except those that are to be printed in one particular colour, the remaining parts being engraved. Plates for each of the other colours are prepared similarly. Suitable combinations of colours may be chosen by arranging, as shown in Fig. 4, a number of different colours and tints A - - E in vertical and horizontal overlapping columns to produce different colour mixtures.
Patent GB-955233-A (GB)
Title: A method for the electric separation of dust from furnace waste gases
IPC: B03C3/01
Filed: 1962-04-06
Abstract: 955,233. Electrostatic precipitators. KLOCKNER-HUMBOLDT-DEUTZ A.G. April 6, 1962 [April 7, 1961 ; Dec. 29, 1961], No. 13301/62. Heading B2J. [Also in Division F4] Hot material emerging from a furnace is cooled by an air flow which is passed through the furnace against the flow of emerging material and is cleaned after its passage through the furnace by means of an electrostatic precipitator, such cleaning being facilitated by adding water to the air flow at the cooling stage. As shown in Fig. 1 a rotary cement kiln of the dry type comprises a kiln 1 with a burner 23. The powdered cement raw material is supplied to the kiln from a conveyer 10 and the four cyclone separators 5, 4, 3, 2 arranged in series and driven by the exhaust gases of the kiln. By this means the raw material is preheated before admission to the kiln. On emerging from the kiln as clinker the cement passes over a cooling grate 26 with an air stream from a blower 27 forced through the clinker from underneath the grate. The hot clinker and air stream are sprayed with water from a nozzle 30 to provide a dew point of 40 ‹C. in the precipitator 18. The kiln air flow is withdrawn through the cyclone separators by a fan 16 and passed to the electrostatic separator 18 from which the cleaned air is drawn into a chimney 20 and the extracted dust is conveyed by a screw 21 and duct 22 back to the cement raw material conveyer 10. Fig. 3 shows a different arrangement of the cooling stage in which the clinker is sprayed over a section of the grate through which air is forced by blowers 39 and 40. The moistened air is drawn into a throttled chimney 65 to a cyclone separator 56 from which it is returned to the blowers including a further blower 41 which cools the clinker at the hottest part of the grate. The air from the blower 41 is led into the kiln 1. Each blower 39, 40, 41 has valves to control the amount of air drawn from the atmosphere and the secondary supply from the cyclone 56. The clinker is crushed in a mill 63 and transported away on a conveyer 64.
Patent GB-133279-A (GB)
IPC: G09F15/00
Abstract: 133,279. Harvey, S. T. June 6, 1919. Moving and changing apparatus.-Relates to advertising-devices of the class wherein a series of slidable panels carrying advertisements are laterally movable in front of and behind a series of fixed advertisements, whereby periodic exposure of the fixed and movable advertisements is successively effected. Fig. 1 shows a front view and Fig. 2 a cross-sectional plan of the device, in which panels 8 slide between two stationary rear surfaces 11 and a stationary front surface 7. The panels 8 are of such a length as to be half hidden by the surface 7, and are mounted on wheels which ride on rails located in grooves in the cross-members 5, 4 of the frame, the tops of the panels being also guided in grooves. The panels are moved from side to side of the frame in turn, to expose the advertisement on the surface 11 previously hidden by the panel, and that on the panel previously hidden by the surface 7. The mechanism for effecting the movement comprises a motor which drives a flexible member 12, e.g. a chain, carrying a pin 27 which engages a forked projection on each of the panels. The chain passes round sheaves arranged so that, after taking one panel to its required position, the pin 27 moves to engage the neighbouring panel and to convey it in the opposite direction, and so on. The device may be double-faced, the same mechanism operating both sides.