baber/WOPTO huggingface dataset:
Patent GB-249277-A (GB)
Title: Improvements in drag buckets or scoops for excavating
IPC: E02F3/60
Filed: 1925-02-07
Abstract: 249,277. Savage, W., and Ruston & Hornsby, Ltd. Feb. 7, 1925. Scraping-apparatus.-A drag bucket or scoop a has hauling brackets n mounted on substantially vertical pivots r on fixed side brackets j, or on the sides of the bucket, and the hauling brackets n have horizontal eyes pivotally receiving shackles w on the ends of the side hauling chains f. Superposed eyes are provided for the shackles w to vary the digging angle, and a number of holes i are also provided to vary the point of attachment of the holding rope g.
Patent GB-733710-A (GB)
Title: Improvements relating to electrical selector switches
Inventor: DITCHFIELD GILBERT
IPC: H01H9/00
Filed: 1953-02-07
Abstract: 733,710. Regulating switches. FERRANTI, Ltd. Feb. 5, 1954 [Feb. 7, 1953], No. 3511/53. Class 38 (5). An electrical regulating switch includes a moving contact member 10 comprising two helically shaped strips 12, 13 which form an incomplete turn of an external screw thread and which are spring urged together and secured to an insulative body 16 by a series of gimbal mountings 14, the body 16 being keyed to an operating shaft 20 so that it is capable of being rotated about the axis 11 of the screw thread and movement along this axis, the fixed contact members being formed by certain of the elements 30 which are mounted in banks 31-34 so that they define a screw thread which is complimentary to and coaxial with that formed by the moving contact member so that upon rotation of the shaft 20 the moving contact member 10 is moved to sequentially engage the fixed contacts 30 between the strips 12, 13. The fixed contacts 30 are capable of rotational adjustment about an axis 40 whilst the moving contact member is adjustable according to the degree of movement allowed by the gimbals 14. In another embodiment the moving contact member may comprise one strip only which may be received between two conductive surfaces spring urged together forming each of the fixed contacts. In a transformer tap changing system two such switches may be mounted on a common shaft with the rotors displaced by 180 degrees.
Patent GB-922692-A (GB)
Title: Improvements in or relating to lame fabrics and yarns therefor
Inventor: SCHARF WALTER GEORGE
IPC: D02G3/12
Filed: 1962-01-30
Abstract: In the manufacture of a coated web which is cut into ribbons to form yarn components (see Group IX), a transparent, flexible synthetic material 10 drawn from a roll 11 is passed through a high vacuum chamber 12 wherein one surface is metal-plated, e.g. with aluminium, gold, magnesium, nickel, silver or titanium, by conventional thermal evaporation or cathodic sputtering methods, and rewound.  The web is then coated (on the metal-plated side or both sides) by roller-coating apparatus, such as rollers 15, 16, 17, combined with a liquid bath 14, <PICT:0922692/IV(a)/1> or flexographic or rotogravure means (not shown), with a film of plastic material, e.g. a mixture of vinyl chloride and vinyl acetate with protective additives.  Th coating is dried and cured by steam, gas heat or infra-red radiation in an oven 18, and the web is slit on a cutter 20.
Patent GB-1407873-A (GB)
Title: Enzyme test
IPC: G01N31/22
Filed: 1973-01-24
Abstract: 1407873 Stirring rod test device F HOFFMANN-LA ROCHE & CO AG 24 Jan 1973 [25 Jan 1972] 3527/73 Heading G1B A rigid rod has adhered thereto at one end an absorbent material containing a predetermined amount of an unstable reagent in lyophilized form. The rod may be a stirring rod of paper or plastics; the absorbent may also be paper or plastics glued to the rod. The unstable reagent may be NADH plus glutathione; NADH, glutathione and ADP; NADH, glutathione, lactate-dehydroginase and malate-dehydroginase; or NADH, glutathione and lactate-dehydroginase only. The rod may be used for quantitative determination of enzymes, co-enzymes and other components in serum, urine or other body fluids.
Patent GB-313185-A (GB)
Title: Improvements in or relating to methods of and/or means for moulding articles from a "slip"
IPC: B28B1/26
Filed: 1928-02-06
Abstract: 313,185. Morgan Crucible Co., Ltd., and Speirs, C. W. Feb. 6, 1928. Casting and moulding hollow - ware; moulds ; processes.- Articles are cast or moulded in a perforated mould by applying pressure to liquid slip, preferably through a flexible diaphragm, the surplus liquid being expelled through the perforations in the mould. In some cases the mould may have the dimensions and configuration of the completed article. Fig. 1 shows a. perforated mould 1 for casting plates or slabs. The mould is lined with filter cloth 3 secured by a clamping ring 4, and the lid 5 clamps a rubber or like sheet 8 in position. Pressure applied through the system of pipes 9, 11 distends the rubber sheet and applies pressure to the liquid slip thus expressing liquid through the, filter-cloth and the perforations in the mould. After setting, the filter-cloth and moulded article are stripped from the mould. Fig. 2 shows a mould in which the pressure is introduced between the flexible and solid parts 18, 17 of a core member. The filter-cloth 3 in this case is secured to a loose ring 13 provided with screwed holes 16 to receive hooks to facilitate the stripping process. In a modification of the latter apparatus the walls of the article to be produced are cast or moulded on to a pre-formed plastic base member, and the mould is split longitudinally into two halves. In another construction the article produced has a narrow neck like a flask, and the core collapses sufficiently to be withdrawn through the neck.
Patent GB-1363776-A (GB)
Title: Telescopic crane jibs
IPC: B66C23/70
Filed: 1972-01-26
Abstract: 1363776 Telcscopic crane jibs LEO GOTTWALD KG 26 Jan 1972 [26 Jan 1971] 3713/72 Heading B8B A telescopic crane jib comprises four sections with spars 1a, 1b: 2a, 2b; 3a, 3b and 4a, 4b with their upper ends respectively rigidly connected by cross-braces 14, 11, 12, 13. Rollers, such as 35 and 32, or wear-plates (not shown), guide the sections during movement by hydraulic rams 42, 43, 44 connected (in various arrangements, Figs. 9, 12 (not shown)), between adjacent sections. In a modification the lowermost twin spar section 1a, 1b is replaced by a closed section (1c), Fig. 4 (not shown). The jib is mounted for luffing, by hydraulic rams 7, on a base 6.
Patent GB-290547-A (GB)
Title: An improved band clip
IPC: F16L33/14
Filed: 1928-02-06
Abstract: 290,547. Alford, P. C. Feb. 6, 1928. Clips, band.-A band clip for securing hosepipes &c. comprises a bent-metal U-piece b in the upstanding sides of which a slotted rotatable tightening member or bolt d is mounted, and a band a one end of which is bent double round the transverse portion of member b and the other end, after being passed round the pipe &c. is passed through the slot in bolt d. Bolt d is then rotated to tighten the band and is clamped in the tightened position by a nut f screwed on to one end of the bolt and bearing against member b. The transverse portion of member b may be flat, as shown, or curved to conform to the surface of the pipe. The bolt d, shown separate, Fig. 4, is slotted by a saw-cut e entering at the threaded end so that it may be passed laterally on to the band a.
Patent GB-692014-A (GB)
Title: Improvements in or relating to dynamo-electric pulse generators
IPC: H02K39/00
Filed: 1952-02-12
Abstract: 692,014. Echo sounding apparatus. ASKANIA REGULATOR CO. Feb. 12, 1952 [Feb. 15, 1951], No. 3735/52. Class 118 (ii) [Also in Group XXXV] Voltage pulses periodically generated by passage of a magnet 63 carried by a rotor 35 past fixed pick-up heads (see Group XXXV) selected by a switch 68 are used to trigger a supersonic transmitter 90 used in a depth-measuring device. When start switch 75a is closed, the opening of switch 75 by a cam driven by the same motor 67 as drives rotor 35, but at half the speed, results in the application of every alternative pulse to the grid 73 of amplifier valve 80, every other pulse being diverted through connection 74 when switch 75 is closed. The pulses which are negative reduce the anode current and produce in the anode circuit of valve 80 corresponding positive pulses which are transmitted through a resistance capacity coupling to grid 85 of a valve 83. By cut off of the anode current, negative pulses are produced in the anode circuit of valve 83 and transmitted through electrostatically screened cable 87 to fire a gas discharge valve 92. This energizes the supersonic transmitter 90, which may be on the hull of a ship, by discharge of a condenser 95 fed from a local power supply 91.
Patent GB-1084765-A (GB)
Title: Improvements in draw hook arrangements for tractors
IPC: B60D1/46
Filed: 1965-01-28
Abstract: 1,084,765. Coupling agricultural implements to tractors. V. ISOSAARI. Jan. 28, 1965 [Jan. 30, 1964], No. 3745/65. Heading A1P. A trailer hitch for a tractor comprises a hook 3 connected to the lift arms of the tractor by telescopic links 7, the hook 3 being held in the raised position by hooked levers 1 which engaged hooked members 2 associated with the hook 3. The levers 1 are released to lower the hook 3 by means of a lever 4.
Patent GB-690371-A (GB)
Title: Improvements in and relating to nut members
IPC: F16B37/04
Filed: 1948-02-09
Abstract: 690,371. Anchor lock nuts. UNITED-CARR FASTENER CORPORATION. Feb. 9, 1948 [Feb. 8, 1947], No. 3771/48. Class 89 (i) Anchor lock nuts formed from sheet metal are in two loosely assembled parts, one of which is riveted or welded to a supporting member. The nut part has a threaded barrel 12 stamped from the sheet so as to leave side flanges 13 and end extensions 14 that are upturned to engage the bolt wheels resiliently at 18 as described in Specification 651,270. The retainer part 24 is loosely flanged over the plugs 13 at 23. The flanges 23 are located with play between the upturned parts 14. Specification 650,330 also is referred to.
Patent GB-573077-A (GB)
Title: Process for the manufacture of articles or masses from metal powders
IPC: C22C33/02
Filed: 1942-03-23
Abstract: 573,077. Obtaining coherent masses from metal powder ; cementation. LENNOX, J. W. March 23, 1942, No. 3824. [Classes 72 and 82 (i)] Metal articles are produced from powders wherein an iron powder containing less than 1 per cent of carbon is pressed in the cold and then sintered in a carburizing atmosphere at a temperature between 900‹ and 1400‹ C. Graphite, cementite or amosphous carbon such as lamp black may be added. The carburizing atmosphere may be of hydrogen, ammonia, cracked ammonia or nitrogen to which has been added from 5 to 10 per cent of butane, propane, petrol, benzol, fuel oil, coal gas or other hydrocarbon gas, whether modified or not by cracking or otherwise. Carbon may also be added as carbides of nickel, chromium, benzotes and manganese. Small proportion of phosphorus may be added either as elementary phosphorus, as the iron-iron phosphide entectic, as alloy with copper, nickel or tin, or by means of a phosphorus-containing atmosphere. The Specification specifies a number of metals and alloys that may be added in small proportions and refers to impregnation with lubricants either liquid or solid such as graphite, or molybdenum sulphide and to addition of abrasives such as carborundum, diamonds, and various oxides. The article produced may have the properites of carbon, also high permeability and low hysteresis loss. Powdered scrap alloys, for example steel turnings, may be employed. Laminated or other compound structures may be produced or the products of the invention may form facings, solid backings, or cores. Articles such as piston rings, gear-wheels or blanks, crank and cam-shafts, pistons and cylinder liners may be produced. The Specification contains lists of numerous other articles and mentions fluxes that may be added. As a detailed example of how the invention may be performed, a Swedish powder containing about 0.2 per cent of carbon was mixed with 3 per cent of powdered iron-iron phosphide entectic and 1.75 per cent of graphite in a ball mill for 20 hours, pressed in the cold at 40 tons per square inch and sintered for 10 minutes between 1080‹ and 1100‹ C. in an atmosphere consisting of, parts by volume, hydrogen 100 and coal gas 20. The pressing was effected in a mould suitable for the manufacture of a piston ring and after sintering the ring was cut to gap size and finished by cold pressing at 30 tons per square inch. The Specification gives nine other detailed examples.
Patent GB-908802-A (GB)
Title: Improvements in and relating to cutting tools
IPC: B23B27/00
Filed: 1959-02-04
Abstract: 908,802. Tool-holders. TANZI, E. Feb. 4, 1959, No. 3907/59. Class 83 (3). A tool A is located in a tool-holder B by concentric journals a<SP>1</SP>, c<SP>1</SP> co-operating with complementary bores a, c in the holder, and locked by a frusto-conical journal b eccentric to the journals a<SP>1</SP>, c<SP>1</SP> co-operating with a complementary frusto - conical eccentric bore b in the toolholder. The tool is released by turning a lever C and the larger diameter of the journal b<SP>1</SP> is slightly smaller than the smallest diameter of the bore b.
Patent GB-875613-A (GB)
Title: Electrolyte container
Inventor: PECH WERNER
IPC: C25D17/02
Filed: 1959-02-04
Abstract: 875,613. Electrolysis. RIEDEL, A., and BACHMANN, F., [trading as RIEDEL & CO. SPEZIALFABRIK FUR GALVANISIERANLAGEN]. Feb. 4, 1959, No. 3932/59. Class 41. An electrolyte container has secured within it, e.g. by welding, a device for separating the anode space from the cathode space, the device comprising a frame 1 having on one face 2 a peripheral groove 3 formed with a bead 4, and an electrolyte-resistant fabric 5 formed with a seam 51 or edge portion in or over which is an elastic member 6, e.g. of rubber, which detachably secures the fabric 5 to the frame 1 in liquid-tight manner by engagement of the seam 5<1> or edge portion with the member 6 over the bead 4 and into the groove 3. The member 6 may comprise an endless inflatable tube which presses an edge portion of the fabric 5 into the groove 3. The container is intended for use in cases where anolyte is pumped through a purifying apparatus to the cathode space.
Patent GB-889036-A (GB)
Title: Improvements relating to the production of linear polyesters
IPC: C08G63/06
Filed: 1959-02-04
Abstract: High molecular weight linear polyesters obtained by the polycondensation of (a) a dicarboxylic acid and a dihydric alcohol (or esterforming derivatives thereof) or (b) a monohydroxymonocarboxylic acid, are viscosity-stabilized by including in the condensation reaction mixture an anhydride of a monocarboxylic acid or a mixed anhydride of two monocarboxylic acids, the monocarboxylic acid or at least one of the monocarboxylic acids forming an ester linkage which has a lower polycondensation equilibrium constant than the polyester-forming acid.  The anhydride may be that of stearic, palmitic, p-toluic, alphamethylbetanaphthoic, 1-ethyl-4-naphthoic or o-benzoyl benzoic acid.  In the mixed anhydrides, one of the components may be volatile, e.g. acetic or propionic acid.  The stabilizers may be added to the starting materials or to low polymers.  They may also be added to polymers having a higher molecular weight than is desired, followed by heating under reduced pressure to slightly depolymerize the polymer.  In Examples, (1) A low polyester, obtained by reacting dimethyl terephthalate with ethylene glycol in the presence of lead acetate, was polycondensed after the addition of stearic anhydride; (2) Bis-(beta-hydroxyethyl) terephthalate, obtained by reacting terephthalic acid with ethylene glycol, was polycondensed in the presence of antimony acetate and the product slightly depolymerized by heating it with the mixed anhydride of p-toluic acid and acetic acid; (3) A low polymer, obtained by heating vanillic acidbetahydroxyethyl ether in the presence of boric acid, was further condensed after adding the mixed anhydride of o-benzoyl benzoic acid and propionic acid.  Specification 610,138 is referred to.
Patent GB-738316-A (GB)
Title: Improvements in or relating to lubricating devices
Inventor: EDGE STANLEY HOWARD
IPC: F16N13/16
Filed: 1953-02-12
Abstract: 738,316. Reciprocating pumps. CLAYTON DEWANDRE CO., Ltd. Jan. 26, 1954' [Feb. 12, 1953], No. 4006/53. Class 102 (1). A device for the periodic distribution of lubricant from a reservoir to a number of points on a machine, vehicle, &c., comprises plungers 15, Fig. 1, slidable in bores 14 concentrically arranged in a liner 12 mounted in the central portion 2 of a casing 1 having end portions 3 slidably mounting pistons 9 connected together by a rod 10 and subjected on their outer faces either to fluid pressure or vacuum transmitted through pipes 7 in end covers 8. The plungers 15 are formed with heads 25 engageable in recesses in the pistons 9 and so arranged that each piston engages half the plungers. The discharge ends of the bores 14 are controlled by non-return flap valves 28, Fig. 4, formed by the cutting of arcuate slots 27, in resilient annular metal discs 26 clamped between the liner 12 and the end portions 3. Lubricant is sucked into the bores 14 from the reservoir through a common inlet 18 and discharged through outlets 21, there being one to each bore, on reciprocation of the pistons 9 by the alternate connection of the pipes 7 to vacuum and atmosphere, one half of the plungers sucking whilst the other half are discharging. Alternatively, the pistons 9 may be operated by compressed air or liquid pressure. In a modification, one of the pistons is replaced by a plate member and the associated end of the casing blanked off. In this case movement of the pistons in one direction is effected by a spring.
Patent GB-524775-A (GB)
Title: Harmonic producing apparatus
IPC: H03K5/00
Filed: 1939-02-07
Abstract: 524,775. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd. Feb. 7, 1939, Nos. 4017 and 4018. Convention dates, April 9, 1938 and May 5, 1938. [Class 40 (v)] In a harmonic generator fundamental waves are amplified and distorted'to produce sharply peaked waves that are fed back to the amplifier for amplification therein. Fig. 4 shows an arrangement in which a source 10 is coupled to the valves 16, 17 in push-pull and the output applied through transformer 29 and phase shifter 31 to a non-linear inductance 33 as described in Specification 477,875, [Group XXXV], to produce sharply peaked waves. The output is applied through transformer 40 to the valves 16, 17 in push-pull and the output of odd or even harmonics taken from transformers 45, 47. Inductances 13, 14, and 27, 28 respectively prevent energy due to the peaked pulses from passing to transformers 11, 29. The phase shifter may control the phase shift so that the peaks of the two waves are substantially in phase opposition and the peaks may be made substantially equal. Alternatively the fundamental and sharply peaked waves may be 90 degrees out of phase preferably with the sharply peaked waves leading. Fig. 6 shows a modification in which the peaky waves are applied in parallel to the input and a parallel output circuit is used for setting up both odd and even harmonics. The Specification as open to inspection under Sect. 91 also describes Fig. 4 (Cancelled and not shown) an arrangement in which peaky waves are applied in parallel and the fundamental in push-pull arranged to produce odd harmonics in the output circuit. This subjectmatter does not appear in the Specification as accepted.
Patent GB-215453-A (GB)
Title: Improvements in or relating to physical exercising apparatus
IPC: A63B23/16
Filed: 1923-02-10
Abstract: 215,453. Campbell, G. Feb. 10, 1923. Drawings to Specification. Gripping-devices exercising the fingers, hands, wrists, &c. comprises a solid hand-grip of elongated form and of dimensions to suit the size of the user's hands and constructed of yieldable indiarubber, such as sponge rubber having a patterned surface.
Patent GB-922474-A (GB)
Title: Improvements in or relating to extensible belt conveyors
Inventor: MIRFIN LESLIE HARRY
IPC: B65G21/14
Filed: 1960-02-05
Abstract: 922,474. Endless conveyers. DISTINGTON ENGINEERING CO. Ltd. Feb. 6, 1961 [Feb. 5, 1960], No. 4162/60. Class 78 (1). The return reach 1b of an endless conveyer belt passes through a belt storage unit 7 comprising a framework 8 supporting two clusters of belt-training rollers 9, 10. The cluster 9 is mounted on a carriage 11 which runs on rails (not shown) and the cluster 10 is fixed relative to the framework 8. The carriage 11 is positioned by a wire rope 13 connected to a winch 12. By training the belt through the unit 7, as shown, a reserve length of belt is built up corresponding approximately to four times the distance between the two clusters. In use, the additional effective belt length resulting from advancing the tail end unit 2 is provided by adjusting the position of the carriage 11 in the storage unit 7 which may remain in position or be moved forward. The rollers of the movable cluster may be mounted on separate carriages and more than two rollers may be provided in each cluster. The conveying reach of the belt runs on rollers strung between ropes extending between supports 6.
Patent GB-311362-A (GB)
Title: Improvements relating to the cracking of hydrocarbon oil and to apparatus therefor
Filed: 1928-02-10
Abstract: 311,362. Arnold, C., (Standard Oil Development Co.). Feb. 10, 1928. Hydrocarbons, cracking.-In a process' for cracking oils of the type comprising a heating coil 1 and a digestion drum 3 maintained under the same pressure, the temperature of the oil in the digestion drum is controlled by partially condensing the vapours formed in the drum 3 in a tower 7 maintained under the same pressure and returning the condensate through a pipe 11 into admixture with the oil passing from the coil to the drum 3 at a point 'anterior to that at which it enters the drum 3 through the pipe 1<a>. The uncondensed vapours from the tower 7 and the residual liquid in the drum 3 are mixed, after passage through pressure reducing valves 14, in a pipe 12 and discharged into a separator 18 in. which vaporization is aided by a steam spray. The condensed vapours pass to a condenser 22 while the condensate produced by the cooling coil 18, and the tar collecting at the bottom of the separator are removed through pipes 20, 17 respectively. The amount of condensate formed in the tower 7 is controlled by a cooling coil 10 through which the crude oil may be passed on its way to the coil 1. The coil 1, drum 3, and tower 7 are maintained under a pressure of. about 350 lbs. per sq. inch. Specification 302,415 is referred to.
Patent GB-677059-A (GB)
Title: Improvements in or relating to tools for surfacing the bores of cylinders
IPC: B24B33/08
Filed: 1951-02-22
Abstract: 677,059. Cylinder hones. AMMCO TOOLS, Inc. Feb. 22, 1951 [April 17, 1950], No. 4321/51. Class 60. A tool for surfacing the bores of cylinders comprises a plurality of surfacing units 15 secured pivotally to the free ends of resilient members 25 which are supported at their other ends by a body 10 so that they can be moved into contact therewith substantially throughout their lengths, each unit 15 pivoting about one axis only passing approximately through the mid-point of its length and extending- transversely of the corresponding member 25. Preferably three surfacing units 15, each comprising an abrasive element 21 secured as by an adhesive to a shoe 16, pivot on the outwardly-directed ends 27 of ears 26 forming part of the members 25, the ears engaging holes 19 in the shoes.. The ears 26 and ends 28 of the members 25 limit pivotal movement of the units 15. A clamping ring 30 is slidable towards the free end of the body 10 so as to deflect the members 25 into grooves 11 in the body and reduce the overall diameter of the tool. The members 25 and the body 10 are retained in a socket 12 by screws 14 and are rotated and fed axially through a universal coupling from a shaft 40.