baber/WOPTO huggingface dataset:
Patent GB-1214406-A (GB)
Title: A method for cooling nitrided workpieces
Inventor: HEINEN HANS
IPC: C21D1/773
Filed: 1968-05-15
Abstract: 1,214,406. Nitriding. H.J. FUCHS. May 15, 1968 [May 17, 1967], No.23164/68. Heading C7U. A workpiece which has been subjected to a nitriding process is, immediately after the nitriding and without further treatment, allowed to cool under vacuum at a pressure not exceeding 20 torr. The workpiece may be transferred from the salt bath or other nitriding furnace to a vacuum vessel which is then sealed and evacuated to the desired, pressure, e.g. 2 torr. Application of the invention to nitrided chrome-nickel steel sinter bodies and to chrome steel and stainless steel tools is described.
Patent GB-1240631-A (GB)
Title: Method of producing a polyurethane film or laminate
IPC: C08G18/66
Filed: 1969-05-06
Abstract: 1,240,631. Polyurethane films and laminates thereof. WHARTON INDUSTRIES Inc. 6 May, 1969 [9 May, 1968; 10 April, 1969], No. 23164/69. Headings B5B and B5N. A film or laminate of a polyurethane is made by coating a continuous moving web having a release surface with a solvent-free polyurethane composition and either curing the resulting film and stripping it off the web, or. partially curing the film by heating, contacting it under pressure with a substrate and then heating to complete, the curing and removing the resulting laminate from the web. The polyurethane composition is formed immediately prior to the coating by mixing, in the presence of a crosslinking catalyst for polyurethanes, substantially equivalent quantities of (I) a liquid prepolymer made by reaction of excess aromatic diisocyanate with a glycol or glycol ether and which contains NCO groups, and (II) a liquid polyol made by reaction of aromatic diisocyanate with excess of a mixture of at least one diol and at least one triol. In examples, toluene diisocyanate is reacted with dipropylene glycol or a mixture of (a) a polypropylene ether diol and triol optionally with dipropylene glycol, or (b) a polypropylene ether triol, an adipic acid/glycol di- and tri-hydroxy polyester and dipropylene glycol. A pigment, e.g. carbon black or iron oxide, may be added. Exemplified substrates for lamination are cowhide or cotton and sateen fabric. Diphenyl mercuric dodedenyl succinate is specified as catalyst.
Patent GB-913234-A (GB)
Title: Purifying tetracycline
Inventor: KARDYS JOSEPH ANTHONY
Filed: 1961-06-27
Abstract: Tetracycline is purified by crystallizing it from an impure solution in aqueous alcohol, particularly aqueous methanol or ethylene glycol monoethyl ether, in the presence of citric acid, an alkali metal citrate or ammonium citrate at a concentration of at least 3 millimoles per gram of tetracycline base activity, while maintaining the pH of the solution between 2.5 and 9.5. The solution may also include urea at a concentration of 1-6 millimoles per gram of tetracycline base activity.
Patent GB-189248-A (GB)
Title: Improved liquid fuel burner
IPC: F23D11/10
Filed: 1921-09-01
Abstract: 189,248. Reside, W., and Thomson, T. Sept. 1, 1921. Spray burners.-A spray burner comprises a fuel tube 3, a steam jacket 1 surrounding the fuel tube and terminating in a diaphragm 2, and an outer hot air or blast jacket 6 surrounding the steam jacket. The diaphragm 2 is formed with a series of recesses 4 adjacent to the orifice accommodating the fuel pipe and with a series of perforations 5, the steam being discharged through the recesses and perforations in two tubular columns. The air is discharged through a nozzle 7 on the jacket 6 to commingle with the steam and fuel. The nozzle 7 mav be adjusted by means of a screw 8 and rod 9. The Provisional Specification states that heated compressed air may be used instead of steam.
Patent GB-749853-A (GB)
Title: Improvements in or relating to apparatus for cleaning and dredging ditches
IPC: E02F5/02
Filed: 1953-08-22
Abstract: 749,853. Ditch-dredging apparatus, CONSERVATORS OF THE RIVER THAMES, and STOCK, R. V. W. March 23, 1954 [Aug. 22, 1953], No. 23211/53. Class 68(1) A ditch-dredging apparatus adapted to be mounted on a vehicle 15 comprises a jib 14 from which is suspended by a chain 17, of fixed length, a dredge 10 having forwardly directed skids 19 to which drag ropes 23 are so connected that the dredge is maintained as a suitable angle for dredging and for mounting the bank of the ditch to deposit the material removed.
Patent GB-1472799-A (GB)
Title: Consolidating ballast
IPC: E01B27/00
Filed: 1974-05-24
Abstract: 1472799 Method of consolidating ballast BASF AG and HEINRICH CRONAU GmbH & CO KG 24 May 1974 [26 May 1973] 23234/74 Heading E1G In a method of consolidating railway ballast, the ballast is tamped and rammed by mechanical means and, during tamping and ramming, a liquid binder is sprayed into the ballast at the operating regions of the mechanical means. The binder may be an aqueous polymer dispersion or a molten, dispersed, or dissolved form of bitumen. For details of the polymer mixtures which may be used the reader is referred to the Specification.
Patent GB-240448-A (GB)
Title: Improvements in or relating to sheet glass drawing apparatus
IPC: C03B15/18
Filed: 1925-09-18
Abstract: 240,448. Libbey-Owens Sheet Glass Co., (Assignees of Blair, J. C.). Sept. 24, 1924, [Convention date]. Drawing.-A device for maintaining the width of the sheet in a continuous drawing-process consists of a pair of refractory blocks, partly submerged in the mass of glass, having spaced lips forming a slot through which the edges of the sheet are drawn. The sheet 22, Figs. 1 and 2, is drawn upwards from a mass of metal 21 contained in a draw pot 20, and the sheet may continue to move vertically, or it may pass around a bending- roller as in the Colburn process. At each side of the pot is supported a refractory block 24 provided with a pair of spaced lips 25, and these lips are curved downwardly so that their lower ends are submerged in the molten glass. The space between the lips forms a slot 26 through which the edges of the sheet pass. The tendency of the glass to adhere to the blocks create a dragging- action which retards the movement of the edges of the sheet and maintains its width. The blocks 24 may have lips of various shapes, and may be so mounted that the dragging-action can be controlled. In the construction shown, the blocks are supported by a bracket 32 keyed to a shaft 33 which can be turned by a worm 41 and segmental gear 37. Thus the extent to which the lips are submerged in the glass can be adjusted by turning the worm shaft 38. In a modification, shown in plan in Fig. 17, separate refractory shoes or blocks 42 are arranged on both sides of each edge of the sheet. The blocks can be adjusted about their vertical axes, and may be moved up or down to regulate the depth to which they dip into the glass. Water-coolers mounted on the blocks keep the device at the required temperature, and also serve to cool the edge portions of the sheet as they leave the blocks. Specifications 114,977 and 184,990 are referred to.
Patent GB-1477485-A (GB)
Title: Metal removal apparatus
IPC: B24B9/00
Filed: 1974-07-26
Abstract: 1477485 Grinding B O C INTERNATIONAL Lid 26 July 1974 [26 April 1973] 23370/74 Heading B3D Metal removal apparatus for gouging a groove in the bottom of a channel between two abutting metal parts welded together and into the back of the weld metal includes a motor driven grinding wheel 20 which is biased towards the weld and which is mounted so that it can move laterally against an axial centralizing bias, in a direction parallel to its rotational axis by contact with the walls of the channel. The grinding wheel is effective to gouge out a groove of substantially uniform cross-section as apparatus and weld are moved relatively. In the apparatus shown in figures 7 and 8, wheel 20 is rotatably mounted on a sub-assembly 40 which also supports motor 42 for driving the wheel through V-belt drive 21. The sub-assembly is mounted on a slidable carriage 38 biased centrally by compression springs not shown. The carriage is carried by an arm 36 pivoted on a support shaft 34 on an arcuate supporting arm 32 which is pivotable at 30 to a bracket 28 between two limit positions disposed orthogonally relative to one another and the arm 32 is lockable in either position. Shaft 34 also supports a lever 46 with a riding roller 44 at one end and adjustment screw 54 engaged between the other end 48 and extension 50 of arm 36 for adjusting the depth of grinding. The subassembly 40 and wheel 20 are biased in use by gravity to pivot around shaft 34 on arm 36 and this is limited by adjustable screw 60 and stop 66 on lever 46 and arcuate arm 32 respectively shield casing 68 for the wheel carrier means 70, e.g. including industrial diamond tools, for dressing the wheel edge. Bracket 28 is mounted on the end of a boom 26 movable horizontally by rack 82 and means inside a slide 72 which is movable vertically by chain and sprocket drive 80, 78 on a column 74. A platform, not shown, may be provided for the operator on one side of the boom. The apparatus may grind longitudinal welds on a cylinder 16 in the position shown in Fig. 7. Alternatively cylinder 16 may be rotated on rollers 88, the apparatus moved to its other limit position about pivot 30 and held stationary in order to grind circumferential welds.
Patent GB-457354-A (GB)
Title: Improvements in cartridge feed mechanism for machine guns
IPC: F41C33/08
Filed: 1935-08-21
Abstract: 457,354. Automatic guns. FABRIQUE NATIONALE D'ARMES DE GUERRE SOC. ANON., Herstal - lez - Liege, Belgium. Aug. 21, 1935, No. 23506. Convention date, Sept. 28, 1934. [Class 92 (ii)] Relates to cartridge-feed mechanism for gasoperated guns in which the feed slide 17 for a cartridge belt arranged beneath the barrel is operated by a guide groove in the upper face of a slide 6 connecting the gas piston 4 with the mechanism for operating the breech block 10. According to the invention, a member 19 for extracting cartridges from the belt is pivoted to the rear of the breech bolt in the central plane thereof and is provided with guide pins 21 engaging grooves 23, 22 in the casing one of the pins being extended by a resilient pin 24 which co-operates with a separation surface 22a provided between the parts 23, 22 of the grooves. These grooves cause an upward movement of the extractor to position the cartridge in line with the breech and a downward movement to engage a fresh cartridge in the belt. The invention is shown applied to a gun in which the slide 6 is connected with the breech block by a link 8 and a locking block 9. The Specification as open to inspection under Sect. 91 also includes the subject-matter of Specifications 451,489 and 457,368. This subject-matter does not appear in the Specification as accepted.
Patent GB-203883-A (GB)
Title: Means for securing thin metal printing plates to the cylinders of printing machines
IPC: B41F27/12
Filed: 1922-08-30
Abstract: 203,883. Murray, J. Aug. 30, 1922. Printing-surfaces. - In devices for securing thin metal printing-plates to their cylinders, of the kind in which detents engaging the edge of the plate are carried by a shaft mounted in a cavity in the cylinder and adapted to be rocked to tighten the plate, the detents are arranged radially to the cylinder and engage the plate at the circumference of the cylinder so that bending of the edge of the plate is avoided. Two similar clamping devices are arranged to clamp two plates C, and each device comprises a shaft A carrying a number of hooked detent fingers B' secured in recesses in the shaft by set-screws B<2> and engaging slots C<1> in the end of the plate. The shafts C are supported in plates D', fixed to the end of the cylinder, and have fixed to them pinions E engaging pinions F freely mounted on pins H. Worm-wheels G, fast to the pinions F, are engaged by worms K on spindles L provided with worm-wheels M engaging screwed spindles N having squared ends N<1> to receive a wrench. By turning the spindles N the shafts A are rocked to tighten the plates C. To allow of adjustment of the plates C transversely of the cylinder, the shafts A are supported by sleeves D threaded into the plate D<1> and internally threaded to engage screwed parts of the shafts A. The external and internal threads of the sleeves are of different pitch so that upon turning the sleeves, the shafts A are adjusted in the direction of their length.
Patent GB-1284698-A (GB)
Title: Safety brake for passenger conveyer
IPC: B66B29/00
Filed: 1971-04-19
Abstract: 1284698 Endless passenger-conveyers GOODYEAR TIRE & RUBBER CO 19 April 1971 [3 April 1970] 23600/71 Heading B8A In a belt constraining apparatus for a belt type passenger conveyer having a pulley 3 for supporting the belt between its upper and lower run at the end of the conveyer, a belt retaining member 18 is disposed adjacent the pulley 3 for supporting and retaining a released portion of the upper run of the belt. A belt engaging member 32 adjacent the pulley 3, is connected to the belt retaining member 18 so as to be urged into braking engagement with the belt upon movement of the released portion of the upper run of the belt on to the belt retaining member, when a breakage occurs in the belt. The retaining member 18 is pivotally mounted at 21 to the conveyer frame so that when belt breakage occurs (Fig. 5), the weight of the belt slipping back into the member 18 tilts the latter into braking position. This action also operates a switch 37 for stopping the conveyer drive.
Patent GB-852535-A (GB)
Title: Improvements in corrosion protection for buried pipe lines and electric cables
Inventor: DAVIES RICHARD LAURENS
IPC: C23F11/18
Filed: 1957-07-25
Abstract: 852,535. Preventing corrosion. BRITISH INSULATED CALLENDER'S CABLES Ltd. June 18, 1958 [July 25, 1957], No. 23607/57. Class 123(1) [Also in Group XXXVI] Corrosion of pipes and electric cable sheaths of aluminium, lead or aluminium or lead base alloy when buried in corrosive soils is prevented by providing around and adjacent the pipe or cable a layer of backfill material consisting partly or completely of powdered hydrated aluminium silicate in the form, for example, of kaolin, china clay, bentonite or fuller's earth. At least 5 % preferably at least 10% by weight of the silicate may be mixed with sand or sandy soil with or without the addition of from 10 to 30% by weight of powdered calcium carbonate and used as a bed for the pipe or cable and as a trench backfill, the layer around the pipe or cable being at least one inch and preferably two inches thick. The layer consisting of or containing the silicate may also contain up to 5% of a corrosion inhibitor such as a metal chromate, nitrate, or phosphate or an amine, ketone, aldehyde or natural gum or resin. Specification 852,536 is referred to.
Patent GB-1386635-A (GB)
Title: Disposable heating containers
IPC: A47J36/02
Filed: 1972-05-19
Abstract: 1386635 Heatable containers MARDON SON & HALL Ltd 7 May 1973 [19 May 1972] 23677/72 Heading A4A [Also in Divisions B2 and B8] A heating container is made from fibreboard 10 protected on each side with a heat-resistant layer 11,12 of packaging material, the protective layer 12 on the inside being impermeable to water and water vapour and the protective layer 12 on the outside being made of heat-resistant plastics or heat-resistant heat-sealable varnish and being permeable to water vapour so that when the container is heated the water vapour escapes quickly enough to avoid the formation of blisters. The outer layer 11 has minute perforations 13 in the base 7 and the side walls 8. The fibreboard 10 has a weight of 300-350 glm<SP>2</SP> while that of the layers 11, 12 is 20-25 glm<SP>2</SP>. The layers 11,12 may be of polypropylene extruded on to the fibreboard 10. The perforations 13 are 25mm in diameter and staggered in rows 12mm apart, adjacent perforations in a row being 11 mm apart. Other suitable protective layers are listed, e.g. a porous clear varnish for the outside and impermeable polymethylpentene polymer for the inside.
Patent GB-287399-A (GB)
Title: Improvements in or relating to speed reduction gearing
IPC: F16H1/32
Filed: 1927-09-09
Abstract: 287,399. Heap, W., Read, W. G., Barnes, J., and Kermode, G. N. Sept. 9, 1927. Epicyclic gearing.-In epicyclic toothed reduction gearing, a driving-shaft a or the like drives two or more eccentrics c, d, arranged in balanced relation, loosely carrying gears g, f held so as only to gyrate by pins n on the casing b engaging circular holes o, o<1> in the gears. The driven shaft l or the like is aligned with the driving-shaft and is connected by a plate to a toothed ring h gearing with gears f, g. The casing b contains oil, which is fed to the eccentrics and pins by holes a.
Patent GB-1516555-A (GB)
Title: Plasticized sulphur composition
IPC: C08L81/00
Filed: 1976-06-09
Abstract: 1516555 Plasticized sulphur compositions CHEVRON RESEARCH CO 9 June 1976 [4 Aug 1975] 23744/76 Heading C1A [Also in Division C5] A plasticized sulphur composition comprises at least 50% by weight total sulphur, based on the total composition, a sulphur plasticizer, an aromatic polysulphide comprising the product obtained by reacting one mol of an aromatic carbocyclic or a heterocyclic compound, substituted by at least one functional group selected from -OH and -NHR in which R is H or C, to C 4  alkyl, with at least two mols of sulphur, and an inorganic filler selected from mica, asbestos and an asbestos-talc mixture. Suitably 2 to 25% of the filler is present; glass fibres may also be present in addition to the other fillers. Preferred sulphur plasticizers (which are defined as excluding aromatic polysulphides having free OH or NHR groups) include aliphatic linear polysulphides, dioctyl phthalate, acrylic acid, epoxidised soy bean oil, triglycerides and tall oil fatty acid. An aliphatic linear polysulphide with one or more ether linkages and having the recurring unit -S x CH 2 CH 2 OCH 2 OCH 2 CH 2 S x - where x is an integer of about 2 is especially preferred but many others are listed. An aromatic polysulphide formed by reacting phenol with sulphur is preferred. The composition may be applied molten to the walls of buildings.
Patent GB-182036-A (GB)
Title: A folding wind-shoot
IPC: B63J2/10
Filed: 1921-09-08
Abstract: 182,036. Hawkins, W. F. Sept. 8, 1921. Wind-scoops.-A folding wind-scoop for use in ships' port-holes comprises a number of sheetmetal semicylindrical sections hinged together. Three sections A, B, C, hinged at f, g, are described, the outer sections B, C being formed with ridges k, m to act as stops when the device is fully extended. The inner end of the section A is formed as a complete ring a, which is riveted to a stiffening-collar D and is provided with a flange E to limit the outward movement of the scoop. The device is folded by first turning the section C about the hinge g through 180‹, and then turning the annulus so formed about the hinge f, whereupon the collapsed form, shown in Fig. 2, is obtained. Handles 0 are riveted inside the ring a, and spring-buttons P are provided, which pass over the rim of the port-hole and keep the device in position.
Patent GB-1107047-A (GB)
Title: Improvements in or relating to a receiver for a multi-channel time division multiplex telecommunication system
Inventor: SMITH GEORGE MITCHELL
IPC: H04J3/06
Filed: 1965-06-04
Abstract: 1,107,047. Multiplex pulse code signalling. GENERAL ELECTRIC CO. Ltd. 6 June. 1966 [4 June, 1965], No. 24013/65. Heading H4L. In a time division multiplex system in which the transmitted signal includes a regularly recurring pulse pattern forming a synchronizing signal controlling the channel distribution at the receiver, the receiver includes means for checking the timing of the channel distribution in relation to the synchronizing signal and providing an indication of synchronism or loss of synchronism at each check, and means for adjusting the timing of the channel distributer only after a predetermined number of successive indications of loss of synchronism. As described there are 24 channels per frame each channel consisting of 8 bits. 23 information channels are provided and the 24th channel carries the synchronizing signal, i.e. 00011011. The incoming signal is supplied via terminal 1 to a shift register 2 controlled by a bit-rate signal extracted from the incoming signal and supplied via terminal 3. The outputs of the shift register are connected in accordance with the synchronizing signal to an AND gate 4 which also receives as a reference signal a pulse at the frame frequency via AND gate 8 derived from the frequency dividers 7, 9 controlling the channel distribution. The bit-rate signal is supplied via terminal 5 and AND gate 6 to the frequency divider 7 which provides an output at the channel frequency, divider 9 providing an output in the digit eight position of channel twenty-four of each frame. Thus only when the receiver is synchronized will a pulse appear at the output of gate 4 and this inhibits gate 14 and via bi-stable circuit 15 enables AND gate 6. The pulses from divider 9 are also supplied via a delay 12 and differentiator 13 to the gate 14 so that if synchronism is lost a pulse will be supplied via INHIBIT gate 16 to set the bi-stable circuit 15 to remove the enabling input from gate 6 and block the pulses controlling divider 7. To prevent temporary errors in the received signal from initiating this operation the pulses from gates 4 and 14 are applied to a bi-stable device 17 so that when the receiver is synchronized an integrator 18 is charged and when an error occurs it is discharged. The arrangement is such that four successive error signals (four frames) are required for the integrator 18 output to fall to a sufficient level to trip a bi-stable device 21 and remove the inhibiting input from gate 16. The receiver will be stopped at its channel twentyfour digit eight position and the gate 8 will maintain its output reference pulse so that when the synchronizing pulse pattern appears again channel distribution will restart as soon as the integrator 18 has recharged to the required level.
Patent GB-761503-A (GB)
Title: Improvements in cooking utensils
IPC: A47J37/10
Filed: 1954-08-18
Abstract: 761,503. Cooking-appliances. BRAUN, R., BRAUN, O., and KEMMLER, J. [trading as BRAUN & KEMMLER]. Aug. 18, 1954 [Aug. 29, 1953], No. 24025/54. Class 66. A frying pan, which may also be used for toasting or steaming, comprises in one form, Fig. 1, a grid plate 5 of wire mesh formed with a handgrip 6 and an upwardly-directed loop 7 which engages under a nose-piece 8 welded to the side wall of the pan opposite the handle 2, the nose-piece acting as a fulcrum when the plate is used as a lever to press down food, e.g. meat, to be fried against the base of the pan. The handle 2 may be fitted with a pivoted wire loop which may be engaged over the grip 6 to hold the plate in position and the loop 7 may be bent upwardly and downwardly so as to pass over the edge of the pan and engage under a nose piece welded to the outside of the side wall, see Fig. 6 (not shown). In a modification, Fig. 4, the plate is formed or provided with a cranked pin or pins 17 which engage in a hole or holes 18 in the side of the pan. If the pan is to be used as a steamer, it is provided with a domed cover and slots are formed in the side wall adjacent the handle 2 for the reception of the hand grip 6, see Fig. 3 (not shown), the food being supported by the grid plate.
Patent GB-825744-A (GB)
Title: Improvements in sampling yarns and threads
IPC: A47F7/18
Filed: 1955-08-22
Abstract: 825,744. Yarn &c. packages. WINDER, J. [trading as SHEPHERDESS WOOLS]. Aug. 10, 1956 [Aug. 22, 1955], No. 24062/56. Class 94(1). [Also in Group XXV] A package of yarn or thread samples comprises a wire 1 having the samples 3 threaded thereon and bent to form a ring with a releasable connection 2 e.g. hooks or a sleeve.