baber/WOPTO huggingface dataset:
Patent GB-455326-A (GB)
Title: Means for destroying growing bracken
IPC: A01B31/00
Filed: 1935-10-10
Abstract: 455,326. Destroying bracken &c. HOLT, V. H., Ravenswick, Kirby Moorside, Yorkshire. Oct. 10, 1935, No. 27983. [Classes 6 (i) and 6 (iii)] To break down bracken and similar weed growths a bar 1, long in relation to its cross sectional dimensions, is provided with a shackle or shackle 2 for pivotal attachment to a tractor or harness. In the form shown, an iron bar 1 of square cross-section has at each end a shackle relative to which the bar is rotatable. Each shackle comprises complementary upper and lower yoke members 2, 3 embracing cylindrical portions 4 of the bar 1 with a split lining 5 of antifriction metal interposed. The members 2, 3, are held together by bolts 6 and nuts 7 carrying hooks 8, 9, from which chains 10 extend forward to a stretcher bar 11 and to horse harness or a tractor and drag chains 18 extend backwards. For uneven ground a number of short bar sections may be ganged together. The bars may be arranged on a loose axle to which the shackle or shackles are secured. The bar may be of ovoid section but is preferably of polygonal section e.g. triangular, rectangular or hexagonal and may have its faces concave.
Patent GB-510833-A (GB)
Title: Systems for matching impedances aperiodically
IPC: H01P5/02
Filed: 1938-09-27
Abstract: 510,833. Transmission systems. STANDARD TELEPHONES & CABLES, Ltd. Sept. 27, 1938, No. 28114. Convention date, Oct. 9, 1937. [Class 40 (iv)] [Also in Group XL] A transducer 50 comprising spaced wires may be used for matching the impedance of a line 31 to the resultant impedances of a pair of lines 61, 71. Alternatively, in a system in which the loads 60, 70 are mismatched to the lines 61, 71 the transducer 50 may be matched to the surge impedances of the lines 31, 61, 71 without reference to the manner in which they are terminated ; under these conditions the standing-wave ratio (i.e. the ratio of maximum to minimum amplitude in the combination of standing or travelling waves produced by partial reflection at the terminal mismatches) is not enhanced by the transmission of reflected waves from lines 61, 71 back into line 21. A further transducer 30 matches the surge impedance of line 21. to the actual impedance of line 31, account being taken of the impedances of lines 61, 71 with loads 60, 70; this match may be effective at a number of discrete frequencies.
Patent GB-181291-A (GB)
Title: A new or improved fire-bridge with water circulation
IPC: F23M3/00
Filed: 1921-10-24
Abstract: 181,291. Hansen, R. W. Oct. 24, 1921. Fire-bridges.-A hollow fire-bridge 2 is so arranged in the flue 1 of a steam-boiler that there is a small clearance between the sides of the bridge and the furnace flue. It is connected to the boiler by lateral pipes 3, 4. In new boilers the fire-bridge may be mounted on stands, and in old boilers it is mounted on the usual bottom firebridge.
Patent GB-957370-A (GB)
Title: Textile fibres
IPC: D01F6/08
Filed: 1962-07-23
Abstract: Compositions comprise polyvinyl chloride or post-chlorinated polyvinyl chloride and 1 to 25% by weight of the total solids of a basic nitrogenous polycondensate of epichlorhydrin and an amine. The epichlorhydrin may be condensed with amines, amines and diamines, amines and imines, diamines and alkyl halides, amines and di-secondary amines, or di-secondary amines. Preferred condensates are those of epichlorhydrin with octadecylamine and piperazine or hexamethylene diamine.  The compositions may be dissolved in solvents, e.g. cyclohexanone, tetrahydrofuran, dimethyl formamide, dimethyl acetamide, N-methyl pyrrolidone, 2-pyrrolidone, chlorobenzene, nitromethane-trichlorethylene mixtures and ketone-nitrohydrocarbon-halohydrocarbon mixtures, to provide solutions from which fibres may be spun.  The fibres may be stretched and the polycondensates rendered water-insoluble before or after stretching by reacting with formaldehyde, diisocyanates, diepoxy compounds, divinyl benzene or vinyl acetylene. The fibres may be dyed. In Example 1 fibres containing a condensate of epichlorhydrin, octadecylamine and piperazine are treated with the diglycidyl ether of ethylene glycol before dyeing.
Patent GB-240031-A (GB)
Title: Improvements in ledgers and the like
IPC: B42D12/00
Filed: 1924-11-25
Abstract: 240,031. Tollit, C. C., and Tollit & Harvey, Ltd. Nov. 25, 1924. Column markers or indicators for ledgers &c., of the kind comprising a strip movable lengthwise to register its columnar ruling with that of the ledger pages, are mounted on the cover of the ledger so as to have a movement similar or approximating to that of one member of a pair of parallel rulers. The strip with ruling and indications may be held by flanges 9, Fig. 2, of a sheet-metal holder 6 with a stop-flange 8, and the holder is connected to a sheet-metal carrier 2 which may be permanently secured to the cover 1 by rivets, pins, &c. or may be detachably mounted on the cover by a U-shaped spring 5 and by flanges 3, 4 engaging the edges of the cover. The holder 6 and the carrier 2 may be connected by a pair of parallel links guided and controlled by a plate which is secured to the carrier and has raised parts overlying the links and also securing the spring 5 to the carrier; or a link 10 may connect one end of the carrier 2 to an extension plate 12 on the holder 6, the other end of the holder being guided by a tongue 17 with a projection 18 engaging a raised part 15 of the carrier 2 between slits 24, 25. Parts 13, 14 formed similarly to the part 15 then guide the link 10 and secure the spring 5 to the carrier 2. The upper slit 24 may be curved, as shown, or straight and parallel to the slit 25, and the projection 18 at the centre of the tongue 17 may then be replaced by projections at the sides of the tongue. When the indicator is not in use, the tongue 17 may be disengaged from the part 15 and the holder 6 swung parallel to the cover in an arcuate path about the link 10 into a position within the ledger, as shown by dotted lines. In a modification in which the strip-holder is connected by parallel links to the carrier and can be moved within the ledger when not in use, the carrier 2. Fig. 4, is U-shaped to engage the cover 1 and links 10 pivoted to the rear side of the carrier are bent over the top of the carrier and hinged at 26 to plates 20 on the strip-holder 6. Side ears 21 on the links 10 guide the plates 20, and the holder 6 may be swung forwardly about the hinges 26 and held in position within the ledger by flanges 23 on a plate 22 secured to the carrier.
Patent GB-1066765-A (GB)
Title: Process for the removal of acetylenes from hydrocarbon mixtures containing diolefines
IPC: B01J23/90
Filed: 1964-07-09
Abstract: Acetylenes are removed from hydrocarbon mixtures containing diolefines by selective hydrogenation in the gas phase at 30-250 DEG C. and 0.2-30 ats. abs. in the presence of a mixed catalyst which contains 5-50% copper, 0.1-50% of one or more oxides, hydroxides or salts of metals of Group Ia or IIa whose oxides are not reducible with hydrogen below 600 DEG  C., and chromium and/or 0.01-20% of one or metals of Group VIII and/or silver and/or zinc, the proportion of carrier being at least 40%. Carriers specified are silica gel, pumice, kaolin, alumina, silica and silicates containing small amounts of the oxides of sodium, iron, calcium and magnesium. Diolefines specified are butadiene-1,3 and -1,2, isoprene, 2,3-dimethylbutadiene-1,3, pentadiene-1,3 and -2,4 and hexadiene.ALSO:A selective hydrogenation catalyst for acetylenes comprises 5-50% copper, 0.1-50% of one or more compounds of one or more metals of Groups Ia or IIa and chromium and/or 0.01-20% of one or more metals of group VIII and/or silver and/or zinc, the proportion of carrier being at least 40%.  The catalyst may be prepared by impregnating the carrier with solutions or suspensions of copper acetate, carbonate, formate or nitrate together with the carbonates, acetates, nitrates or chlorides of the group VIII metals and/or chromium and/or silver and/or zinc and solutions or suspensions of oxides, hydroxides, carbonates, nitrates, acetates, formates or other salts that may be converted to oxides or hydroxides of metals of Groups Ia or IIa.  The mass may then be heated to 500 DEG C and finally reduced conventionally with hydrogen at 100-250 DEG C.  Carriers specified are silica gel, Stuttgart composition, pumice, kaolin, alumina and magnesia.  The catalyst may be regenerated by treating with steam at 200 DEG C, oxidising with air at 200-400 DEG C and finally reducing at 100-200 DEG C.
Patent GB-535826-A (GB)
Title: Improvements in harness for personal wear
IPC: A62B35/00
Filed: 1939-10-20
Abstract: 535,826. Harness for airmen &c. TERRY & SONS, Ltd., H. and TERRY, C. D. Oct. 20, 1939, Nos. 28299 and 29264. [Class 141] Harness for personal wear, particularly that used in connection with parachute equipment, has a laminated spring of V formation to stiffen part of the harness to admit of ready fitting of the equipment on the person. The fabric straps 5 are stiffened by their laminated springs 6 connected by a yoke. Preferably, the construction is combined with a "Sutton" harness equipment, the yoke being bolted to a plate 9 slotted to engage headed bolts 11 connecting the harness to the seat back or frame 12. A resilient or flexible strap 13 connects the harness with the frame.
Patent GB-1087645-A (GB)
Title: Improvements in or relating to a machine for filling pastries
IPC: A21C15/00
Filed: 1965-07-05
Abstract: 1,087,645. Filling and coating confectionery. W. E. EGERTON. Sept. 20, 1966 [July 5, 1965], No. 28314/65. Headings A2A and A2B. A machine for filling and coating, flour confectionery such as pastries, cakes and buns, hereinfater described as applied to the filling and coating of eclairs, comprises an intermitently movable conveyer 1, on which are mounted a plurality of open carriages 2, each holding an eclair. The machine also comprises a piercing and filling unit 4 mounted on a carriage 5, which is reciprocated horizontally in a direction perpendictular to the conveyer, so that two needles 19, projecting from said unit, pierce two eclairs, when the carriage is moving towards the stationary conveyer 1, and leave holes in these eclairs, when the carriage retreats from the conveyer. When the needles are completely withdrawn from the holes, the conveyer 1 moves to bring the two pierced eclairs into alignment with the filling unit's two filling tubes 9 projecting from a valve 6, actuated by an arm 11, connected to a double-acting pneumatic ram 12. The conveyer 1 is then halted. Cream is supplied to the inlet 7 of the valve 6 through a flexible pipe 17 and a rotary pump 14, connected to the base of an open-topped cream reservoir 13. When the carriage 5 moves towards the conveyer 1, the tubes 9 enter and traverse the holes in the two eclairs, and when the carriage is about to retreat, the ram 12 moves the arm 11 ,  so that cream is fed through the retreating tubes into the holes. When the tubes are about to leave the filled eclairs, the ram 12 moves the arm 11 so that the supply of cream is switched from the tubes 9, through an outlet 8 from the valve 6 and a flexible pipe 18, into the top of the reservoir 13. The conveyer then moves to bring the two filled eclairs into alignment with two tubes 32 extending from a valve 25, mounted on a second reciprocating carriage. The valve 25 is similar to the valve 6, and is actuated, by a pneumatic ram 28, to dispense chocolate icing from the tubes 32, as they move over the eclairs during retreat of the second carriage from the conveyer 1, which is again halted. The chocolate icing is circulated through the valve 25 and a reservoir 23. The conveyer 1 again moves to bring the two completed eclairs into alignment with a pusher unit 30 mounted on the second carriage, which again moves towards the conveyer 1, so that the two complete eclairs are pushed, by two pusher elements, on to a discharging conveyer 3. The two reciprocating carriages advance more slowly towards the conveyer 1 than they retreat. In filling confectionery according to the invention, jam or sweet-meat fillings may be used instead of cream.
Patent GB-271808-A (GB)
Title: Devices for eliminating microphonic noises in electron tubes
IPC: H01J19/66
Filed: 1926-11-12
Abstract: 271,808. Federal Telegraph Co., (Assignees of Kolster, F. A.). May 25, 1926. [Convention date]. Vacuum tubes. - Microphonic noises due to the vibration of thermionic valves are reduced by applying to the valve a hollow metallic weight increasing its inertia and raising its centre of gravity to a point approximately central of the electrodes, the weight having a partly spherical or bulbous portion 10, Fig. 4, resting on the dome portion of the valve 2 and an integral cylindrical or straight-walled portion 9. The part 10 may be apertured at 12 and flattened as shown and the edge of the part 9 may have an annular bead 11. The part 9 may be hemispherical without an aperture and the weight may be applied to a valve having a cylindrical envelope with hemispherical' end. In a modification, Fig. 5, the weight comprises a dome 20 with an outwardly extending flange 19 connected by springs 18 to extensions 17 of the valve socket 6. The valve may be rigidly mounted, or the socket 6 may be flexibly supported by contacts 7 with associated limiting stops 8. The weights may be cast. Felt or other soft material 15, Figs. 4 and 5, may be interposed between the weights and the valve bulb.
Patent GB-697110-A (GB)
Title: Improvements in or relating to the manufacture of plastic sheet material
IPC: B29C43/30
Filed: 1950-11-22
Abstract: 697,110. Making variegated plastic sheet material. ARMSTRONG CORK CO. Nov. 22, 1950 [Nov. 26, 1949; Nov. 26, 1949], No. 28540/50. Class 87 (ii) A sheet is formed from a plastic base and a plastic mottling colour composition, the sheet is cut into rods, and the rods are fed to rolls where they are coalesced and rolled into sheet form; this second sheet may be reduced in thickness by rolling. The plastic base may be linoleum composition, asphalt, "Vinylite" (R.T.M.) or rubber. Figs. 1 and 2 illustrate a method in which the material is fed from a hopper 4 and sheeted between hot rolls 5, 6. The sheets 9 formed on the cooler roll 6 are cut from the roll by doctor blade 7 and drop on to conveyer 8. The mottling colour composition is arranged in a series of jaspe lines, each line extending across the width of the sheet. The conveyer 8 takes the sheets through a slitting device 11, which cuts each sheet into longitudinal strips, and a cutter 12 which cuts the strips transversely to form rods 13 of a size, e.g. 3 x 0.25 x 0.25 inches. The rods fall into a hopper 14 and thence, haphazardly arranged, between sheeting rollers 15. In a modified procedure (not illustrated) the jaspe lines of colour may run diagonally. Fig. 3 (plan view) illustrates another method, in which sheets 20 are arranged in overlapping relationship on a conveyer 19 with the jaspe lines extending transversely. The sheets are cut once only, transversely, to form long rods 23 of, say, 0.25 x 0.25 inch section and the rods fall into sheeting rolls 25 with their axes parallel to the roll axes. The rod axes may not be parallel to the axes, and the rods may be bunched in masses by hand and dropped into the rolls. U.S.A. Specification 1,939,045 is referred to.
Patent GB-442459-A (GB)
Title: Improvements relating to road vehicle seats
IPC: B60N2/08
Filed: 1935-04-10
Abstract: 442,459. Sliding seats. MORRIS MOTORS, Ltd., and FOULKS, F., Cowley, Oxford. April 10, 1935, No. 28541/34. [Class 52 (ii)] A motor-car front seat b slidably adjustable in an inclined direction passes at its rear end, under the lower end of the back squab c. Transverse members of the frame a support bars d the seat b being secured to the bars by wing nuts g on bolts e passing through slots in one member. Inclined bars supporting the rear seats are secured to the heel board and other parts of the body. Specification 173,772, [Class 52 (ii)], is referred to.
Patent GB-1384612-A (GB)
Title: Circular knitting machines
IPC: D04B15/58
Filed: 1972-06-19
Abstract: 1384612 Knitting machines BILLI SpA 19 June 1972 [19 June 1971] 28557/72 Heading D1C In a circular knitting machine the yarn guides are lifted to an inoperative position by sloping ramps 19 on a ring 17 which is rotatable by means of a handle 23, the ramps acting on the yarn guides through tappets 21, the yarn guides being restored to their operative position by means of a cam segment 3x on a drum 3 acting through levers 25, 33 and links 29, 33 to move the, handle in the opposite direction. The pivot pin 31 is mounted on a spring blade 32 so that the link 29 can be disconnected from the lever 33.
Patent GB-743044-A (GB)
Title: Improvements in or relating to locks
Inventor: ATTWOOD LEONARD
IPC: E05B67/22
Filed: 1953-10-16
Abstract: 743,044. Padlocks. WORMALD PATENT LOCKS CO., Ltd. Sept. 15, 1954 [Oct. 16, 1953], No. 28567/53. Class 44. Relates to padlocks containing provision whereby the key cannot be withdrawn until the bolt has been moved into the locked position. According to the invention the padlock is provided with a plate mounted in a plane parallel to that of the lock lever or levers to rock in its own plane with respect to the lock casing, a hole being provided in the plate through which the key and at least one bit of the key can pass and be rotated when the bolt is in locked position, there being a pin and slot connection between the bolt and the plate to control the position of the plate, movement of the bolt towards open position rocking the plate to bring the edge of the hole over a bit of the key that has passed through the plate. As shown, the lock comprises a hollow casing 10, a cover and a sliding bolt 17. A pivot-pin 15 projecting from the casing passes through a slot 16 in the bolt and the latter is provided with a pin 22 which is adapted to engage three spring-loaded levers 23 pivoted about the pin 15 and which is also engaged in a slot 35 of a guard-plate 24. The plate 24, which is freely pivoted about the pin 15 and is disposed below the second lever, is provided with a hole 34 through which a key 25 freely passes. In operation, rotation of the key frees the levers 23 from the pin 22, and raises the bolt 17, the upward movement of which rocks the plate 24 to bring a part 39 thereof between a bit for the third lever and the corresponding part of an opening in the cover, to prevent withdrawal of the key. The bolt is fully extended by pulling against the casing 10 and is closed by pushing inwardly of the casing, when the key is released and can be withdrawn. In another arrangement, Figs. 9 and 10 (not shown) the guard plate lies between first and second levers pivoted about a pin fixed to the lock casing, there being a third lowermost T-slotted lever pivoted to the bolt by a retention pin for the other levers, the pivot-pin for which projects through the bolt into the slot of the third lever. The hole in the guard plate is elliptical. The arrangement is such that the slotted lever must be rocked by a key-bit before the bolt can be moved by engagement of a key-bit with a cam surface thereon.
Patent GB-533260-A (GB)
Title: Improvements relating to electro-magnetic clutching means
IPC: F16D27/00
Filed: 1939-10-25
Abstract: 533,260. Clutches ; brakes, ROVER CO., Ltd., and IVERSON, P.A. SCOTT-. Oct. 25, 1939, No. 28631. [Class 80 (ii)] [Also in Group XXXIV] An electromagnetic clutch for clutching an element, e.g. a gear wheel 20 to a shaft 11 comprises a coil 17 supported by a non- magnetic member 16 which is secured to a flange 12 on the shaft 11 and slidably and drivingly supports the inner peripheries of a set of clutch plates 14, a second set of clutch plates alternating with the first set being slidably and drivingly supported by a non-magnetic member 21 fixed to a second flange 18 on the shaft 11. One flange is integral with the shaft and the other loose upon it and fixed to the wheel &e. 20 to be driven. The member 16 may be secured to either the integral flange as shown or to the loose flange. Current is supplied to the coil by a brush 23 and slip ring 24 mounted on an insulating strip 25. Two clutches for driving toothed wheels of different sizes may be arranged one on each side of a common integral flange. By holding the loose flange stationary such a clutch may be used as a brake for the shaft 11. The clutch plates may be crimped about a diameter or about a number of equally-spaced radii. If the gear wheel 20 has helical teeth, these are arranged to provide an axial thrust upon the clutch plates. Specification 15640/05, [Class 103], is referred to.
Patent GB-846497-A (GB)
Title: Improvements in or relating to devices for the detection of individual faulty fuel elements and the precise location of the position of the fracture on the surface of thefaulty element
Inventor: CUNNINGHAM KENNETH WILLIAM
IPC: G21C17/07
Filed: 1957-09-11
Abstract: 846,497. Nuclear reactors. PLESSEY CO. Ltd. Sept. 9, 1958 [Sept. 11, 1957], No. 28698/57. Class 39(4). A group of fuel elements is tested whilst in a neutron flux to identify faulty elements. A carrier 12 is mounted within the biological shield 3 but outside the pressure vessel 2 of a reactor, and this carrier holds all the elements 15A from one fuel channel. It is rotatable so that each element in turn can be examined, with testing gas collected at 20 for radioactivity. The gas flowing over the element 15A may be withdrawn from the carrier 12 at varying points along the length of the element by raising or lowering the pipe 22, Fig. 3, and the element may be rotated to locate the position of a fault. Specification 837,443 is referred to.
Patent GB-425374-A (GB)
Title: Improvements in or relating to friction clutches
IPC: B60K17/02
Filed: 1933-10-18
Abstract: 425,374. Friction clutches; variablespeed gearing. BOLTON, A., 182, Radford Road, Coventry, and ENGLISH, J., North Leam, Felling, Gateshead-on-Tyne. Oct. 18, 1933, No. 28769. [Class 80 (ii)] In a friction clutch, a member 2, mounted freely on the driving shaft 3 and movable axially into frictional contact with the driven member 4, has V-shaped projections 5 coacting directly with similar projections 6 on a shoulder 7 of the shaft 3, whereby the pressure between the members 2, 4 increases automatically with the driving torque, in either direction of rotation. The member 2 is normally hold in light contact with the member 4 by a spring 13, and is adapted to be withdrawn by a collar 8 splined on the shoulder 7 and connected to the member 2 by flexible pins 9. When used as the tail clutch of a motorvehicle gear-box, the rod 12, which through a fork 17 controls the collar 8, has a lost-motion connection with the main clutch control, whereby the initial engaging movement of the main control allows the tail clutch to become engaged under the action of the spring 13, further engaging movement of the main control effecting the engagement of the main clutch and consequent tightening of the tail clutch. During disengagement, the friction between the fork 17 and the collar 8 serves to brake the shaft 3.
Patent GB-496771-A (GB)
Title: Improvements in or relating to methods of and means for the production of diamond grinding and lapping implements
IPC: C04B14/32
Filed: 1937-10-22
Abstract: A composition for making grinding implements consists of diamond particles mixed with particles of another hard mineral, such as sapphire, ruby, corundum, emery, silicon carbide, and a ceramic binder.  In an example, 7 parts of diamond powder, 2 parts of synthetic sapphire, 1 part of alum, 2-5 parts of clay, 3 parts of glycerine, and 4 parts of glue size are moulded and burnt at 1000-1500 DEG  C.
Patent GB-168540-A (GB)
Title: Fire grates
IPC: F23H9/00
Filed: 1920-10-13
Abstract: 168,540. Ellis, J. G., and Mingie, G. W. Oct. 13, 1920. Fire-bars.-The shakerbracket A of a rocking firebar C is cast separate from the bar, and detachably connected thereto. The firebar is cast with downwardlytapered slots G, G<1> preferably at each end, to receive the similarly tapered end K of the shaker-bracket A, which is held rigid by a split pin B inserted in a slot J in the bracket.