baber/WOPTO huggingface dataset:
Patent GB-434228-A (GB)
Title: Improvements in fluid power transmission devices
IPC: F16D33/18
Filed: 1934-05-15
Abstract: 434,228. Hydraulic transmission of power. DELL, C., 25, Swing Gate Lane, Berkhamsted, Hertfordshire, and READ, H. L., Netherton, Herington Grove, Hutton Mount, Essex. May 15, 1934, No. 14648. [Class 69 (ii)] In hydraulic transmission devices of the F÷ttinger type, a chamber containing liquid and air is formed by a clearance between the casing and a vane wheel, and means secured to the element on the driving shaft are provided in the chamber to aid centrifugal action in pumping liquid over the back of the vane wheel into the working chambers when the pressure in the latter permits. The means may consist of spiral fins or grooves 4, Figs. 1 and 3, provided on the back of the vane wheel or the opposing internal casing wall, and the chamber, when the casing is a fixed one, may have a gravity tank or other external source of supply. The invention may be applied to the transmission system described in Specification 434,204.
Patent GB-1177863-A (GB)
Title: Improvements in and relating to Digital Data Computer Systems
IPC: G06F13/38
Filed: 1968-03-27
Abstract: 1,177,863. Computer systems; terminal unit identification. BURROUGHS CORP. 27 March, 1968 [27 March, 1967], No. 14697/68. Heading G4A. In a digital computer system in which a plurality of terminal units may be connected by way of data communication lines, adapters, control units and input-output channels to a central memory, execution of an input-output identity test enables the types of terminal units connected to be checked automatically. As shown (Fig. 4), the multiline control unit of the time-sharing computer system described in Specification 1,176,894 is modified by the addition of a connection 97 between the line adapters 34 and a descriptor word register 70 whereby the terminal type identification signals generated by the adapters may be transmitted together with other data from control circuitry 77 in a result descriptor word to the central memory 11 in response to decoding in the multiline control unit of an input-output identity test command. The identification signals may be utilized by the central processor for selecting suitable test routines. The invention may also be applied to single line control units, as at 20 (Fig. 1, not shown).
Patent GB-1073082-A (GB)
Title: Tetrahydro-4:4'-bipyridyl derivatives and the preparation thereof
Inventor: COLCHESTER JOHN EDWARD
IPC: C07D211/82
Filed: 1965-04-07
Abstract: Tetra-hydro-4:41-bipyridyls having as N-substituents on each nitrogen atom a group of the form -R1-CO-NR2R3 wherein R1 is a hydrocarbon radical, e.g. a methylene group, and R2 and R3 are hydrocarbon or substituted hydrocarbon radicals or taken together with the hydrogen atom to which they are attached, make up a heterocyclic ring, e.g. a piperidine or morpholine ring, and preparation thereof by reductive coupling, at a temperature in the range 0 DEG  to 100 DEG  C., of two molecules of a quarternary pyridinium salt having the corresponding group -R1-CO-NR2R3 as the nitrogen substituent using an alkali metal amalgam, e.g. sodium amalgam, in aqueous solution or by electrolytic reduction at a cathode made of a metal of high over-potential, e.g. mercury or lead, in a cell having as aqueous alkaline electrolyte a solution of an alkali metal salt.  N:N1 - di - (N:N - diethylacetamido)-tetrahydro - 4:41 - bipyridyl and N:N1 - di-(N - cyclopenta - acetamido) - tetrahydro - 4:41-bipyridyl are obtained from the corresponding quarternary salts derived from pyridine and N,N - diethyl - chloroacetamide or N - (chloroacetyl)-piperidine by reduction with sodium amalgam and electrolysis respectively.ALSO:Electrolytic reductive coupling of two molecules of a quaternary pyridinium salt is effected at a cathode made of mercury, lead or another metal of high hydrogen over-potential in an aqueous alkaline electrolyte to give tetra-hydro-4:4'-bipyridyls. N:N'-di(N-cyclopenta-acetamido)-tetrahydro -4,4'-bipyridyl is obtained by electrolyzing the quaternary salt derived from pyridine and N-chloroacetyl-pipiridine under nitrogen at a mercury cathode in a cell having a platinum anode and a porous alumina diaphragm using a 5M aqueous sodium chloride electrolyte and a current density of 0.02 amp. /sq.cm.
Patent GB-385296-A (GB)
Title: Improvements in and relating to systems of electric motor control
IPC: H02P7/34
Filed: 1931-05-19
Abstract: 385,296. Control of D.C. motors. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) May 19, 1931, No. 14787. Convention date, May 19, 1930. [Class 38 (iii).] Varying E.M.F. ; following movement of control member.-In a " follow-up " system with Ward Leonard drive a polarized relay effects circuit controlling operations in accordance with the direction of voltage in the control field. Upon movement of a transmitter c, the field b<1> of an exciter b is energized, and a motor e receives current from the Ward Leonard generator a, and drives the receiver d. Connected in parallel with the field b<1> are coils l, m of two contactors g, h, and the fixed coil of a polarized relay f, so that when the motor e is started, the armature of the relay f is moved to bridge contacts q and energize a stronger and differential coil k of the contactor h, which is prevented from closing by the coil m. When the receiver d has copied the movement of the transmitter c current is cut off from the field b<1>, and the coil m is de-energized, so that the contactor h closes to connect the field b to the supply through resistances n, o in a reverse manner, thereby removing the remanence of the field and ensuring a correct stopping of the motor e. The armature of the relay f is prevented from opening its contacts when its fixed coil is de-energized or even when it is energized in the reverse direction through the resistances n, o by the remanence of its magnet core. Mechanical locking means may replace the locking action' of the differential coils of the contactors g, h, and also the remanence locking of the armature of the polarized relay.
Patent GB-459129-A (GB)
Title: Improvements in or relating to wrapping machines
IPC: B31B1/90
Filed: 1936-04-03
Abstract: 459,129. Wrapping-machines; packages. TREDGET, C., and MOLINS MACHINE CO., Ltd., 2, Evelyn Street, Deptford, London. April 3, 1936, No. 14844/35. [Class 94 (i)] A wrapping-machine is provided with means to secure a tearing strip to the wrapper by the application of a line or lines of adhesive or solvent to the central portion only of the strip, to keep the edges thereof free from adhesive. The wrapping material is fed from a reel 2 and is passed over rollers 3 ... 5 to rollers 6, 7 with a knife 8 and die 9 which form a semicircular slit 16, Fig. 2. A rotating knife 14 co-operates with a fixed knife 15 to sever a wrapper, of the shape shown in Fig. 2, from the web. In order to provide the blank with the tearing strip, a strip 21 of material, which may be similar to that of the web, and may be coloured, is fed from a reel 22 over and under guide rollers 23, 24 having peripheral grooves. A roller 25 rotating in a bath 26 applies solvent or adhesive in a line or lines of less width than that of the strip 21. The strip is next led through a guide 27 of substantially C-cross-section extending almost to the roller 3. At this point the strip is superposed upon the web and is united thereto by being led over a heating element 28. The strip is thus disposed on the wrapper as shown in Fig. 2. In a modification, Fig. 5, the strip may be applied to the wrapper so that, after application, the cuts 16 and the end of the strip may be on a longitudinal edge of the packet instead of at the end.
Patent GB-612056-A (GB)
Title: Ethylene polymers and co-polymers
IPC: C08F10/00
Filed: 1946-05-16
Abstract: Ethylene is polymerized under a pressure of between 100 and 600 atmospheres in an aqueous liquid phase containing a catalyst, in the absence of dispersing agents and non-polymerizable water-immiscible liquids, the weight ratio of ethylene to water being at least 2 : 1. Catalysts specified are benzoyl, acetyl, lauryl, diethyl, methyl ethyl, diphenyl and tert-butyl peroxides, hydrogen peroxide, ammonium and alkali metal persulphates, oxygen, diazo-amino-benzene, benzene-diazo-hydroxide, benzene - diazo - acetate, benzene - azo - triphenyl - methane, nitroso - acetanilide and tetraphenyl-succinonitrile.  Activators, e.g. iron, cobalt, nickel, chromium, manganese and vanadium, preferably as co-ordination compounds, e.g. potassium ferro- and ferri-cyanides, and potassium cobalti-nitrite, or in the presence of complex forming substance, e.g. aminocarboxylic acids and water-soluble polysaccharides, may be present.  Copolymers may be formed with propylene, styrene, butadiene, isoprene, piperylene; vinyl and vinylidene chlorides, vinyl acetate, vinyl ethers, vinyl ketones; acrylo- and methacrylo-nitriles, acryl- and methacryl-amides, ethyl acrylate, methyl methacrylate; carbon monoxide, formaldehyde.
Patent GB-543551-A (GB)
Title: Improvements in or relating to circular knitting machines of the links and links type
IPC: D04B9/10
Filed: 1940-10-05
Abstract: 543,551. Knitting - machines. MELLOR, BROMLEY & CO., Ltd., BROMLEY, T. C., and SHORTLAND, A. Oct. 5, 1940, No. 14900. [Class 74 (ii)] To ensure separation of the sliders from the double-ended needles of a two - cylinder machine one or more rigid elements are inserted into each cylinder for applying a force to the backs of the sliders so that during the transfer operation the sliders are deflected outwardly. The elements may be in the form of rings 20 common to all of the tricks in a cylinder, or alternatively pins, pegs or cams may be inserted in the individual tricks. The elements engage cam forma- 'tions 18 on the backs of the sliders. The leading ends 42 of the sliders may be pointed or wedge-shaped to open the needle latches. Specifications 15008/00, [Class 74], and 24290/12, [Class 74 (ii)] are referred to.
Patent GB-746027-A (GB)
Title: Improvements in or relating to methods of preparation of phenanthridinium salts
Inventor: WALLS LESLIE PERCY
Filed: 1952-06-13
Abstract: Phenanthridinium salts having a primary amino group in the 2- or 3-position and an acylated amino group either in the 7-position of the phenanthridine nucleus or in a 9-aryl substituent thereof are prepared by reacting a 2- or 3-aminophenanthidinium salt carrying another amino group in the position required for acylation with substantially one molecule of an acylating agent in aqueous and/or alcoholic solution.  The following compounds, which may be so produced, are novel:-the 10-alkyl (particularly methyl) quaternary salts of 2-amino-7-propionamido - 9 - phenyl -, 2 - amino - 7 - nbutyramido - 9 phenyl -, 2 - amino - 7 - acetamido - 9 - p - aminophenyl - and 3 - amino - 7-acetamido - 9 - phenyl - phenanthridine.  In the examples (1) (a) 2,7-diamino-9-phenyl-10-methyl - phenanthridinium chloride ("Dimidium chloride") is boiled with acetic anhydride in aqueous methanol and in methanol alone to give 2-amino-7-acetamido-9-phenyl-10-methylphenanthridinium chloride. (b) Dimidium chloride is shaken at 100 DEG  C. with acetic anhydride in water and the product is reacted in boiling methanol with silver ethanesulphonate to give the ethanesulphonate.  (c) The ethane sulphonate is obtained directly from Dimidium bromide and silver ethanesulphonate.  (d) 7-Acetamido - 2 - amino - 9 - phenyl - 10 - methylphenanthridinium bromide is prepared from Dimidium bromide. The sulphate is similarly prepared, directly from the Dimidium salt or by metathesis of the chloride with silver sulphate.  The acetate, isethionate and lactate are obtained by metathesis of the sulphate with the barium salts.  (2) 2-Amino-7-formamido-9-phenyl - 10 - methylphenanthridinium chloride is prepared from Dimidium chloride and aceticformic anhydride, and the ethanesulphonate is also prepared.  The 7-propionamido-, n-butyramido- and benzamido-derivatives are similarly prepared.  (3) The 2-amino-7-acetamido-9-phenyl - 10 - ethylphenanthridinium bromide and ethanesulphonate are prepared. (4) 2-Amino-7-acetamido - 9:10 - dimethylphenanthridinium chloride is prepared.  (5) 3-Amino-7-acetamido9 - phenyl - 10 - methylphenanthridinium chloride is prepared.  (6) 2-Amino-7-acetamido9 - a  - thienyl - 10 - methylphenanthridinium chloride and ethanesulphonate are prepared. (7) The 9-p-nitrophenyl derivative is similarly prepared from which the ethanesulphonate is obtained.  This is reduced with ferrous hydroxide and treated with ammonium chloride to give the 9 - p - aminophenyl derivative (as the chloride).  On acetylation, 2 - amino - 7-acetamido - 9 - p - acetamidophenyl - 10 - methylphenanthridinium chloride is obtained.  (8) 2-Amino-9-p-acetamido-phenyl-10-methylphenanthridinium chloride is prepared.
Patent GB-643620-A (GB)
Title: Improvements in and relating to the production of acetic anhydride
IPC: C07C51/56
Filed: 1948-06-02
Abstract: Acetic anhydride is prepared by mixing acetic acid with at least one sulphur-containing compound which is either liquid or gaseous at about 20 DEG  C. and also with a dehydration catalyst, passing the mixture so formed through a heated reaction vessel constructed of an alloy containing nickel so that acetic acid is dehydrated to form ketene, separating the ketene from the water and unchanged acetic acid, and absorbing the ketene in glacial acetic acid to form acetic anhydride.  The catalyst may be a volatile phosphorus-containing compound, and a volatile basic nitrogen compound may be added to the vapours leaving the reaction vessel (see Specifications 435,219 and 441,956).  The sulphur compound is preferably carbon disulphide, but others specified are hydrogen sulphide, ethyl mercaptan, thioglycollic acid and allyl isothiocyanate.  Specifications 305,147 and 313,418, [both in Class 2 (iii)], also are referred to.
Patent GB-583942-A (GB)
Title: Improvements in or relating to seats
IPC: B60N2/04
Filed: 1944-08-04
Abstract: 583,942. Adjustable seats. COX & CO. (WATFORD), Ltd., and TOON, C. Aug. 4, 1944, No. 14948. [Class 52 (ii)] A seat comprises tubular seat and back frames a, b movable as a unit in relation to a guide e which forms part of the seat support and has hand manipulated means g in the seat back which actuates mechanical means controlling the movement of the seat and back unit. The front bar of the seat frame a is pivotally supported on the upper ends of a stirrup member c pivoted to the vehicle floor and of rearwardly extending stays d which also rest on the floor. The U-shaped guide e is pivoted to upturned ends of the stays d. The handle g operates an eccentrically mounted cam f the sides of which co-operate with -the transverse part of the guide e to raise or lower the seatback unit which pivots about the point of support of the tube a on the stirrup e. In modifications a rack and pinion may be used instead of the cam or the seat may be spring-pressed to its highest position and depressed into a lower position by a suitably shaped cam. In any of the modifications the support c, d of the seat frame a may be associated with notched stays o.
Patent GB-873355-A (GB)
Title: Precision linear dimension measuring instrument
IPC: G01B3/22
Filed: 1958-05-09
Abstract: 873,355. Dial gauges; indicating-apparatus. MAHR, C. May 9, 1958 [May 11, 1957], No. 14999/58. Classes 106 (2) and 106 (4). A dial gauge comprises a casing 1, an operating plunger 21 arranged to move a pointer 5 through gearing 8, 9, 10 and a leaf-spring 24 in the form of an arc of a circle the tangents T, T1 at the end of which arc subtend an angle at their point of intersection not greater than 120 degrees, the spring being fixed at one end to the casing 1 and at the other attached directly or indirectly to the plunger 21, the arrangement being such that it is subjected to flexing only by a buckling force. As shown, the spring 24 is held in an adjustable bracket 25 and is acted on by a lever 22 which moves with the plunger 21.
Patent GB-1431088-A (GB)
Title: Joint structure including two preformed reinforced structural elements
IPC: E04B1/04
Filed: 1973-03-29
Abstract: 1431088 Joining preformed elements J A WEY 29 March 1973 [6 April 1972] 15032/73 Heading E1W Preformed spanning building elements e.g. concrete floor slabs are interconnected by dowel means or wedges 11, 12 which bear on the edges of vertical plates 9, 10 which project from the adjacent edge faces of adjacent elements 1, 2 at least one wedge being in each the tensile zone and compression zone of the elements. A plurality of plates are fixed to a backing flange 5, 6 anchored in the concrete by reinforcement 8 and the plates may be shaped to transmit shear forces or to transmit tensile and compressive forces. In a further alternative, wedges are used to transmit tensile forces and a cast concrete fillet to transmit compressive forces.
Patent GB-818400-A (GB)
Title: Improvements in or relating to magnetic heads
Inventor: MOGG ROY MERIDYTH
IPC: G11B5/127
Filed: 1957-05-11
Abstract: 818,400. Recording &c. heads &c. ELECTRIC & MUSICAL INDUSTRIES Ltd. May 6, 1958 [May 11, 1957], No. 15037/57. Drawings to Specification. Class 40 (2). An erasing head with a ferrite core has a copper or beryllium-copper gap spacer in good thermal contact with two metallic support plates. Since the core material is of relatively low thermal conductivity, eddy current heat in the spacer cannot readily escape through it, but according to the invention this heat can escape via the support members. The method of construction is also claimed for record/playback heads.
Patent GB-991992-A (GB)
Title: Electrical waveguide arrangement
Inventor: KAO CHARLES KUEN
IPC: H01P5/00
Filed: 1963-04-17
Abstract: 991,992. Waveguide bends and junctions. STANDARD TELEPHONES & CABLES Ltd. April 17, 1963, No. 15072/63. Addition to 905,774. Heading H1W. The reflecting junction of the parent Specification is modified in that the dielectric diaphragms are formed of a material the electrical constants and dimensions of which are such that, at the operating wavelength, energy incident upon them at a glancing angle is absorbed. Fig. 1 shows an H-plane section of a right-angle reflecting junction between two rectangular waveguides 1, 2 utilizing the H 01  mode of propagation. Waves incident at near-normal angles on the dielectric diaphragms 5, 6 are transmitted as indicated by typical paths ABCDE and FBTUW. Waves striking either diaphragm at a glancing angle, e.g. at P and G, are absorbed, typical paths being MNP and FG. In the Figures the angle # has been exaggerated and represents the angle (#10 degrees) of reflection which ordinary plane waves may be considered to make with the walls of the waveguide. The waveguide mode may be considered as the resultant of such waves striking the walls at an angle #=#/2a. The dielectric material has a dielectric constant not exceeding 1À2 and a loss factor of about 0À1. The thickness should be of the order of #/2. Foamed polyvinyl chloride and balsa wood are referred to. The invention may be applied to hybrid junctions and to channel-dropping filters as in the parent Specification.
Patent GB-930291-A (GB)
Title: Improvements in the production of textile yarns
Inventor: BEAUMONT ALBERT GORDON
IPC: D02G1/18
Filed: 1960-04-29
Abstract: 930,291. Yarns and threads. COURTAULDS Ltd. April 28, 1961 [April 29, 1960], No. 15098/60. Class 120 (3). Bulked, mixed staple fibre yarn is produced by forming a yarn from a blend of polypropylene staple fibres with one or more other fibres e.g. heat-stabilized acrylic or crimped viscose rayon, which show little or no tendency to contract on heating and then, prior or subsequent to knitting or weaving, subjecting the yarn to a dry (oven) or wet (steam or boiling water) heattreatment to cause differential shrinkage of the fibres. The heat-treatment may be effected during standard processing e.g. in a heated scouring or dyeing bath. Reference has been directed by the Comptroller to Specification 876,928.
Patent GB-102050-A (GB)
Title: Improvements in Reinforced Concrete and like Railway Sleepers and Means for Fixing the Rails and Chairs thereto.
Inventor: PELNARD-CONSIDERE LOUIS
IPC: E01B3/32
Filed: 1916-10-24
Abstract: 102,050. Considere, L. Pelnard-. Nov. 3, 1915, [Convention date]. Sleepers, composite, and securing rails and chairs to; chair plates.-Railway rails and chairs are secured to reinforced-concrete sleepers by one or two clamping-members a which surround the sleepers and are prevented from moving by giving the ends of the sleeper a double-wedge form. Fig. 3 shows a modified clamping-arrangement. Fig. 6 shows a construction of chair plate c' having ribs g between which the upper part of the sleeper is wedged by the clamps a. The clamping members a and supporting plates may also be held in position by shoulders f. The Specification as open to inspection under Sect. 91 (3) (a) describes also a sleeper having its ends in the form of a cross in plan and the vertical arms of the clamps arranged at the four angles. This subject-matter does not appear in the Specification as accepted.
Patent GB-880411-A (GB)
Title: Biocidal compositions
IPC: C07F15/04
Filed: 1958-05-12
Abstract: Compositions comprising as active ingredient a compound of the formula (ArO.)nX-(O.CO.R)m wherein Ar is an optionally substituted phenyl radical, e.g. a chlorophenyl such as pentachlorophenyl radical, R is an acylic or cyclic organic radical containing more than six carbon atoms and derived from a non-volatile organic acid, X is a polyvalent fungicidal metal, e.g. manganese, iron, cobalt, nickel, copper, zinc or mercury and m and n are positive integers the sum of which equals the valency of the fungicidal metal X, are prepared by reacting an oxide, a hydrate or a volatile organic acid salt, e.g. of acetic or formic acid of the fungicidal metal with a solution in a heavy organic solvent of the organic fungicide in a substantially equimolecular quantity of a non-volatile organic acid preferably at a temperature below 100 DEG C.  In an example colophony (or naphthenic acid or tall oil) pentachlorophenol and heavy aromatic solvents or methyl naphthalenes, polyisopropylbenzenes or the like are refluxed and copper or zine oxalate added.ALSO:A biocidal composition for the protection of organic materials against insects, fungi, bacteria and the like comprises as active ingredient a compound of the formula (ArO.)nX-(O.CO.R)m wherein Ar is an optionally substituted phenyl radical e.g. a chlorophenyl such as pentachlorophenyl radical, R is an acyclic or cyclic organic radical containing more than six carbon atoms and derived from a non-volatile organic acid, X is a polyvalent fungicidal metal e.g. manganese, iron, cobalt, nickel copper, zinc or mercury, and m and n are positive integers the sum of which equals the valency of the fungicidal metal X.  The composition may be prepared by reacting an oxide, a hydrate or a volatile organic acid salt e.g. of acetic or formic acid of the fungicidal metal with a solution in a heavy organic solvent of the organic fungicide in a substantially equimolecular quantity of a non-volatile organic acid preferably at a temperature below 100 DEG  C.