baber/WOPTO huggingface dataset:
Patent GB-334515-A (GB)
Title: A new or improved drum dryer
IPC: F26B11/02
Filed: 1929-06-01
Abstract: 334,515. Maschinenfabrik Imperial Ges., and Schwieter, A. June 1, 1929. Rotary drums.-In a rotary drum drier of the kind in which the material passes between an outer drum b and an inner perforated drum a, the hot gases which are supplied through the inner pipe c are withdrawn by a fan g located in an intermediate position, so that the material is first dried by the gases in co-current, and secondly in counter-current. The drum is surrounded by a chamber f in which the fan is located and the drum b is cut away or perforated at this point. Blades o, p, r for agitating and forwarding the material are secured to the drums a, b. The ports q in the supply pipe are controlled by shutters k.
Patent GB-1497355-A (GB)
Title: Method of storing subsequently separating flat objects and devices for carrying out the method
IPC: B65H39/14
Filed: 1975-04-24
Abstract: 1497355 Separating and stripping sheets LICENTIA PATENT VERWALTUNGS GmbH 24 April 1975 [24 April 1974] 17067/75 Heading B8R Sheets 1 which are adhered at intervals to a band 2 are stripped from the band as this passes over a guide roller 10 and on to a reel 11. The roller 10 is driven periodically from a sheet forwarding roller 14 by the placing of a solenoid controlled connecting roller 15 between them. A stop 22 prevents the forwarding of more than one sheet. In an alternative form the sheets may be stored in pockets on the band.
Patent GB-1353684-A (GB)
Title: Polyalkenamers and process for their manufacture
IPC: C08G61/08
Filed: 1971-05-26
Abstract: 1353684 Regulated ring-opening polymerization of cyclic olefins CHEMISCHE WERKE HULS AG 26 May 1971 [6 June 1970] 17161/71 Heading C3P Polymers of the formulic having a molecular weight of at least 500 and where each R represents H, alkyl or aryl, the two Xs of each formula representing the corresponding parts of an unsaturated ether cleared at the double bond, y being 2 to 50,000, m being 2, 3 or 5 to 10, n and o are 1 to 7 with n+o being 3 to 8, and p, q and r are each 1 or 2. They may be obtained by polymerizing a cyclic olefinic hydrocarbon using a ring-opening catalyst containing a W, Mo, Re, Nb or Ta compound in the presence of an unsaturated ether containing at least one unsaturated bond not in a ring. The catalysts are suitably (a) a tungsten or molybdenum compound, (b) an organoaluminium compound, and optionally (c) an hydroxyl or sulphhydryl compound. The unsaturated ether is used in such amounts that it does not completely complex with the catalysts; it may also improve the activity of the catalyst in some cases, in addition to acting as a molecular weight regulator and chain-terminator. In examples, cyclopentene, cyclopentene - co - cyclododecene, cyclooctene, cyclododecene, or 1,5 - cyclooctadiene are polymerized in the presence of WCl 6 /Al(C 2 H 5 )Cl 2 , Al(C 2 H 5 ) 2 Cl or in some cases with ethanol, and in the presence of allyl phenyl ether, allyl 2-chloro-, 2,4-dichloro, pentachloro- or 2,4,6-tribromophenylether, vinyl pentachlorophenyl ether, vinyl n. or iso-butyl ether, vinyl lauryl ether, 1,8-dimethoxy - 1,7 - octadiene, 1,4 - dimethoxy - 2- butene, methylallyl ether, and 1,4 - bis - (2,4,6- tribromophenoxy)-2-butene.
Patent GB-1261330-A (GB)
Title: Corrosion resistant metallic articles
Inventor: PRYOR MICHAEL J
IPC: C23F13/02
Filed: 1968-11-06
Abstract: 1,261,330. Composite metallic material. OLIN CORP. Nov.6, 1968 [Jan.12, 1968], No. 17317/71. Divided out of 1, 252, 274. Headings C7A and C7D. A corrosion resistant composite comprises a copper or copper alloy matrix, having structural integrity with, and interspersed with 0À1-25% of Zn, In, Cd, Co, Ni, Al or Mg, which is not in solid solution nor in intermetallic form, wherein some of the added metal is exposed to an aqueous medium at the surface of the composite, whereby an insoluble dispersed hydroxide film is formed which is electro-phoretically deposited on the matrix from a positively charged colloid or fine precipitate. The matrix material may be alloyed with one or more of:- Al 0À5-10% Si 0À2-5% Cr 0À5-20% Mn 0À2-10% Ni 0À5-40% Zn 1-35% Be 0À05-4% Mg 0À01-2% Ti 0À01-5% Zr 0À01-2% and Co 0À01-4%; and when the matrix is so alloyed, the dispersed phase may be Fe. When the matrix and the dispersed phase show little tendency to react, the composites may be made by casting and working, in the case of reactive pairs powder metallurgy must be used. In the example very low heating temperatures are used.
Patent GB-292951-A (GB)
Title: Improvement in process for the high concentration of nitric acid
IPC: C01B21/44
Filed: 1928-06-15
Abstract: 292,951. Du Pont de Nemours & Co., E. I., (Assignees of Zeisberg, F. C.). June 27, 1927, [Convention date]. Acids, concentrating and distilling.- Concentrated nitric acid is obtained by passing vapours of dilute nitric acid into the foot of a dehydrating tower A from a boiling vessel D, cold strong sulphuric acid or other dehydrating agent being run into the top of the tower from a reservoir B. The vapours of strong nitric acid are condensed in a reflux I from which part of the acid runs back through a pipe K into the tower A to act as an auxiliary cooling agent while the remainder is led off to storage. The sulphuric acid passes from the tower A into a de-nitrating tower G of usual construction.
Patent GB-720510-A (GB)
Title: Hinges
Inventor: HARRIS HARRY
IPC: E05D7/04
Filed: 1952-07-11
Abstract: 720,510. Hinges. RADIATION, Ltd. June 23, 1953 [July 11, 1952], No. 17492/52. Class 65(2). An oven door d is mounted adjustably on a fixec frame a by a hinge comprising a pair of sheet meta plates f and g interconnected at one end by a knuckle joint h, the other end of plate g being beni over at i through a righi angle and having a notch therein engaging a circumferential groove k in an adjusting screw m, the plates being secured to the door and frame respectively by screws and n. Screw n passes through an elongated slot in plate g to allow for adjustment of the latter in a direction perpendicular to the hinge axis.
Patent GB-851908-A (GB)
Title: Mechanism for clamping flexible printing plates to the plate cylinder of machines for flat printing
IPC: B41F27/12
Filed: 1958-06-02
Abstract: 851,908. Printing surfaces. ALLER PRESS A. S. June 2, 1958 [July 4, 1957], No. 17541/58. Class 100(2) Flexible printing plate clamping mechanism in which the ends 40 of the printing plate 36 are connected to two bars 30, 32 received in an axially extending groove 26 in the circumferential surface of a cylinder 10 is characterised by comprising a number of pins 44 extending transversely of the bar and each mounted in bores in both bars, and having an adjusting disc 42 accommodated in the slot between the bars, the ends of the pins 44 co-operating with abutment faces 48 in the walls of the groove so that by turning the pins the bars may be adjusted in different directions within the span defined by the walls of the groove. The cylinder is provided with an axially extending recess 12 in which are located bars 16 attached by screws 20 to a bar 18 which is screwed to the cylinder. The clamping bars 30, 32 are located in the groove 26 defined by the bars 16, 18. The discs 42 are mounted in groups of five as shown in Fig. 3 for adjusting the bars 30, 32 in three different ways. In the first the pins 44 are screw-threaded into the bar 30 and rotate freely in the bar 32 (type A) so that by turning the discs 42 the bar 30 is moved tangentially towards or away from the other bar 32. In the second the pins are screwed into bar 32 but rotate freely in the bar 30 for tangentially adjusting the former bar (type B). In the third the pins are free to rotate in both bars 30 and 32 and are provided at their ends with eccentric pins 50 which are received in bores in slide blocks 52 displaceable in axially extending grooves 54 in the bar 16 (type C). Rotation of these pins effects radial movement of the bars 30, 32 and final tightening of the printing plate 36. The discs are provided with circumferential notches 56 for turning by means of a hook spanner.
Patent GB-1526668-A (GB)
Title: Facsimile transmitter receiver system
IPC: H04N1/029
Filed: 1977-04-27
Abstract: 1526668 Facsimile systems KOKUSAI DENSHIN DENWA CO Ltd and YAMURA SHINKO SEISAKUSHO CO Ltd 27 April 1977 [28 April 1976] 17649/77 Heading H4F A facsimile transceiver system operable selectively in local, transmission and receiving modes, comprises a carrier 1 supporting a read head 5c and a write head 3a and movable linearly backwards and forwards by a pulse motor 11 for main scanning in two directions of a printing paper 16 and an original document 15; and a control circuit for applying a predetermined number of pulses to the pulse motor for each scanning cycle and sending a synchronization signal for each scanning cycle in the transmission mode, the control circuit being initiated by receiving the synchronization signal or by the insertion of the original document. The printing paper and the original document are moved by a predetermined length at the end of each scan by an auxiliary pulse motor 51. A change-over switch 67 is installed for switching between the local mode, wherein operation occurs only within a facsimile device, and a communication mode, wherein transmission to, or reception from, other facsimile devices is carried out.
Patent GB-421290-A (GB)
Title: Improvements in or relating to apparatus for the reduction of sulphur dioxide to elemental sulphur
IPC: C01B17/04
Filed: 1933-06-21
Abstract: In the reduction to elemental sulphur of the sulphur dioxide content of gaseous mixtures, the gas to be treated is passed into a furnace and through a comparatively shallow layer of solid fuel, or other solid contact mass containing combustible carbonaceous material, disposed on a chain or other mechanically-actuated grate, the depth of the layer being controlled by the rate of fuel fed, the rate of travel of the fuel, and the distance above the grate of a fuel distributer.  The gaseous mixture to be treated may consist of sulphur dioxide and air together with any of the well known reducing gases.
Patent GB-356299-A (GB)
Title: Improvements in and relating to the manufacture and production of artificial threadsand filaments and products therefrom
IPC: D01F2/30
Filed: 1930-06-10
Abstract: Carboxylates.-Artificial threads and filaments are formed by dry-spinning a solution of an organic ester of cellulose in a volatile organic solvent, which solution also contains a soluble compound of an hydroxylated alkylamine with a fatty acid.  Threads and filaments so produced readily lose lustre when treated with soap solution at or near boiling-point or when boiled with water. In an example 24 parts of cellulose acetate and 2 parts of triethanolamine oleate are dissolved in 71 parts of acetone and 3 parts water and the solution dry spun to produce threads of 3,5 denier.  The threads are woven into cloth which assumes a dull or matt appearance on treatment with boiling water or soap solution.
Patent GB-679124-A (GB)
Title: Improvements in or relating to cathode-ray tube circuits
IPC: H04N3/227
Filed: 1949-07-06
Abstract: 679,124. Television receivers. PHILIPS ELECTRICAL, Ltd. July 6, 1949 [July 9, 1948], No. 17873/49. Class 40 (iii). A circuit for centring the beam of a cathoderay tube employing magnetic deflection, comprises two equal resistors 7 and 8, arranged in parallel with a further resistor 9 having an adjustable tapping thereon, the deflecting coil 10 and transformer 4 supplying saw-tooth deflection current being arranged in series between this tapping point and the common point of resistors 7 and 8. A direct current i is fed through the network 7, 8, 9. The resistors 7, 8, 9 are each made small compared to the resistances of coil 10, e.g. resistors 7, 8 and 9 may each have a value of 20 ohms while that of the coil may be 80 ohms. In this event the impedance of the circuit supplied by transformer 4 varies only slightly over the whole range of control by resistor 9. The Specification as open to inspection under Sect. 91 describes a circuit illustrated in Fig. 1 (Cancelled), and used for beam-centring in conjunction with the line-deflection coil 5. In this arrangement, the controlling circuit is shortcircuited to alternating current by condenser 6 to reduce changes in input impedance of the circuit with respect to transformer 4 due to movement of the slider 3. This arrangement would require an excessively large condenser for centring if it were used in conjunction with the frame-deflection circuits. This subject-matter does not appear in the Specification as accepted.
Patent GB-241312-A (GB)
Title: Improvements in or relating to grinding and polishing machines for bifocal or multifocal lenses
IPC: B24B13/00
Filed: 1924-07-26
Abstract: 241,312. Reid, R. C. July 26, 1924. Lenses, grinding and polishing.-In a machine for grinding or polishing bifocal or multifocal lenses of the kind wherein the lens is rotated about its axis whilst a rotatable tool rocks about an adjustable point corresponding with the centre of curvature, the tool, preferably of tubular form and of less diameter than the lens to be ground, is universally mounted on the driving spindle and the latter is mounted in a bearing block adjustable axially or angularly, or both, on the rocking member so that the radius of curvature or the arcuate path swept out may be varied. The tool 1 ie mounted on a projection 2 on a block 3 pivoted on a bell end 4 of a plate 5 and provided with rollers 3a engaged by driving pins 5<a> on the plate, which latter is carried by a taper plug 6 driven into a spindle 7 splined to a hollow spindle 8 rotated by a stepped pulley 12. The spindle 7 is pressed down by a spring 9, the tension of which may be adjusted by a screw 10. An axial rod 11 secured to the spindle 7 enables the tool to be lifted from 'the work when required. The hollow spindle 8 is mounted in bearings 13 in a block 14 adjustably attached to a rocking plate 15, which is pivoted to the machine frame and carries an arm 36 oscillated by means of an adjustable link 37 connected to a crank pin 39 mounted in a slot 40 in a rotating face-plate 41. The lens is secured to a plate 18 carried by a taper plug 19 driven into a hollow spindle 20 mounted in bearings 22, 30 in a block 23 slidable on guides 24 and rotated by a stepped pulley 21. In order to take up wear caused by abrasive entering the bearings, the upper part 29 of the hollow spindle 20 is of downwardly-converging taper form and the bearing 30 is tapered correspondingly. Vertical adjustment of the thrust bearing 32 by means of a screw 28 threading through a block 33 attached to the block 23 enables a running fit of the part 29 in the bearing 30 to be obtained. The guides 24 carry a cross-bar 26 to which is fixed a long screw 31 projecting into the hollow spindle 20. After adjusting the thrust bearing 32 by the screw 28, the height of the block 23 may be adjusted by a wheel nut 27 threading on the screw 31 and abutting the screw 28, after which the block 23 is locked to the guides 24 by the screws 25. Covers 34, 35 are provided to catch abrasive and prevent it entering the bearings.
Patent GB-1187962-A (GB)
Title: Roofing.
Inventor: BONAFONT ROGER LOUIS
IPC: E04D3/366
Filed: 1966-04-25
Abstract: 1,187,962. Metal roof structures. RUBEROID CO. Ltd. 5 May, 1967 [25 April, 1966], No. 17946/66. Heading E1K. A roof structure comprises a preformed plane panel 1 which spans between supporting .structures without intermediate support, the panel including two or more corrugated metal members 2 at least one adjacent pair of which are secured together in overlapping relationship by bolts which engage in slots in the metal members, and a series of reinforcing members 3 secured to the metal members transversely of the troughs. The roof structure may also include adjacent pairs of panels secured together in edge-to-edge or co-planar relationship. A layer 7 of thermal insulation such as a foamed synthetic resin may cover the external surface of the panel, over which a layer 8 of weatherproofing material is applied. The reinforcing members may be secured to the inner or outer faces of the panels and may be formed by pairs of members of Z-section. Adjacent metal members may be connected by an expansion joint.
Patent GB-1496307-A (GB)
Title: Hypolipidemic agents
IPC: C07D333/34
Filed: 1976-05-03
Abstract: 1496307 Thiophene derivatives RICHARDSON-MERRELL Inc 3 May 1976 [16 June 1975] 17956/76 Heading C2C Novel compounds I in which Y is O or S, R is C 10-20  alkyl or C 10-20  alkenyl containing 1 to 4 double bonds, R 1  is H, C 1-6  alkyl, benzyl, phenethyl, pyridylmethyl, -(CH 2 ) n -NR 2 R 3 , where n is 2 or 3, R 2  is H and R 3  is C 1-4  alkyl-carbonyl, or each of R 2  and R 3  is C 1-4  alkyl or R 2  and R 3  together with the nitrogen atom represent pyrrolidino, piperidino, morpholino or piperazino, or R 1  is the group of Formula A where the sum of m and p is 3 to 5 and R 4  is C 1-4  alkyl, and pharmaceutically acceptable salts thereof, are prepared by reacting an R-Y- substituted thiophene methyl ketone with magnesium methyl carbonate followed by treating the resulting complex with an acid and water to give a compound I in which R 1  is H, if desired esterifying this to form esters of Formula I, and, if desired, transesterifying a resulting ester. Compounds I where R 1  is other than H may also be formed by condensing a compound VII in which X is halogen, 1-imidazolyl or C 1-4  alkyl, with an ester of acetoacetic acid followed by alkaline hydrolysis of the resulting thenoylacetoacetate, or with an ester of acetic acid. These compounds may also be obtained by acylation of compounds VII in which X is halogen or 1-imidazolyl, with a magnesium complex of malonic acid mono-ester. R-Y-substituted thiophene methyl ketones are prepared by (a) reaction of methyl magnesium bromide with the imidazolide derivative of an R-Y-substituted thiophene carboxylic acid (itself prepared from a halo-substituted thiophene carboxylic acid or an R-Y-substituted thiophene), or (b) acylationofan R-Y-substituted thiophene, or (c) treatment of the corresponding acid with methyl lithium. Compounds VII in which X is halogen are prepared from the corresponding acids while compounds VII in which X is 1-imidazolyl are prepared from the corresponding acids or acid chlorides. 2-R-O-substituted thiophenes are prepared by reacting 3-thiolen-2-one with a suitable hydrocarbylating agent. Pharmaceutical compositions having hypolipidemic activity, for oral or parenteral administration, comprise one of the above novel compounds together with a pharmaceutical carrier.
Patent GB-482856-A (GB)
Title: Improvements in or relating to electrolytic condensers
IPC: H01G9/045
Filed: 1937-06-28
Abstract: 482,856. Electrolytic condensers. RADIOWERK E. SCHRACK AKT.-GES. June 28, 1937, Nos. 18001 and 18002. Convention dates, July 1, 1936 and Nov. 28, 1936. [Class 37] [Also in Groups XVI and XXII] The anode, and possibly the cathode, of an electrolytic condenser is made of etched aluminium at least 99À8 per cent pure, having a crystal grain size of less than À001 mm. This fine grain structure may be obtained by any known method. Aluminium in sheet of 2 mm. thickness may be rolled to À2 mm. thickness in one operation or, if in stages, no heating beyond a short-period annealing is allowed between stages. Tempering by transient heating not above 270‹ C. may be carried out, after rolling. Aluminium of greater than 99À98 per cent purity is preferred. Before etching, the usual oxide film is removed mechanically. With the purest metal, etching may be effected by a concentrated hydrochloric acid and a spongy surface of fine grain is produced which may extend throughout the thickness of the foil, the system of crystallites having then a fibrous form.
Patent GB-635149-A (GB)
Title: Well drilling rig
IPC: E21B3/02
Filed: 1947-07-08
Abstract: 635,149. Well-boring apparatus. MENHALL, J. W. July 8, 1947, No. 18001. Convention date, Dec. 3, 1946. [Class 85] [Also in Group XXX] A drilling rig mounted on a single base frame 1, has the draw-works positively driven from the power take-off shaft whilst the drive to the rotary table 16 has incorporated in it a coupling which yields if undue strain occurs on the drill rods with the possibility of breakage. Power from the engine 14 is taken through a gear-box 18 to a coupling 19 to drive a shaft 20 which is mounted in bearings 21 and carries fixed and free portions 63, 64 of a clutch, the free portion having formed thereon a sprocket 22. A chain 30 passes over the sprocket 22 to drive the worm-gearing 32 of the draw-works drum 17, but this chain drive may be replaced by a shaft and gear drive. The drive to the rotary table is taken from the shaft 20 through a friction clutch 23, 24, a fluid coupling 36 and a reduction gearing 35 to a coupling 37. The drive to the table 16 may be direct from the coupling or through a chain drive from a sprocket 38 on the coupling 37 during the initial drilling when the rotary table is raised with respect to the frame. The shaft drive may be replaced by chain drives provided a yieldable coupling is provided in the drive to the rotary table and worm-gearing in that to the winch.
Patent GB-458239-A (GB)
Title: An improved hurricane lantern with burner hood and a flame plate attached to the wick sheath
IPC: F21L19/00
Filed: 1936-06-29
Abstract: 458,239. Wick burners. NIER, B., Beierfeld, Saxony, Germany. June 29, 1936, No. 18022. Convention date, July 20, 1935. [Class 75 (i)] The wick-sheath 4 of the burner of a hurricane lantern is prevented from becoming overheated by the provision on the flame plate 5 of wires 6 of copper or other good heat-conducting material leading into the fuel holder 1. The flame plate 5 may be attached to the wicksheath either directly or by means of an asbestos or similar heat-insulating ring.
Patent GB-299006-A (GB)
Title: Improvements in or relating to draw works drums for use in well-boring and like plant
IPC: B66D1/30
Filed: 1928-06-22
Abstract: 299,006. National Supply Co. of Delaware, (Assignees of Faulkner, D. S., and Timbs, E.). Oct. 19, 1927, [Convention date]. Drums.-The draw- ' works drum of a wellboring or like plant comprises half - drum sections 1, 2, each integral with a flange 4 and provided at their meeting ends with inwardly-extending flanges 7 each formed with a groove 8 and outwardlyextending machined flanges 9; the halves are connected by a split ring 10 provided with a machined groove 11 in which the flanges 9 fit tightly, the ring being out of contact with the drum sections at other parts. The ring may be secured as by welding the edges to the drum sections; triangular welded joints 20 or undercut welds 19 may be employed. The flanges 7 and radial members 22 extend inwardly to near the supporting shaft 6 which may be keyed to the drum or drive the latter through differential mechanism. Specification 291,049 is referred to.
Patent GB-181803-A (GB)
Abstract: 181,803. O'Brien, B. H. March 17, 1921. Push-button switches. - A switch for dimming the headlights of motor vehicles is adapted to be placed on the steering wheel or column and consists of a push-button i, the stem t of which carries a conducting-ring u, spring contacts r, surrounded by a resistance coil s having its ends secured to the contacts r, a sleeve n forming an abutment for a spring m, terminals e, g secured to the spring contacts r, and a casing h. Normally the resistance s is short-circuited by the engagement of the ring u with the contacts r and the resistance s is inserted in series with the lamps by the depression of the button i.