baber/WOPTO huggingface dataset:
Patent GB-1155982-A (GB)
Title: Printing Plates and Methods for Their Manufacture.
IPC: B41N3/08
Filed: 1966-05-19
Abstract: 1,155,982. Printing surfaces. MEAD CORP. 19 May, 1966 [28 May, 1965], No. 22365/66. Heading B6C. [Also in Division C3] Surfaces are rendered more hydrophilic by applying thereto a uniform film of an aqueous solution containing a neutral amide of polyitaconic acid, polymonomethyl itaconic acid or a long chain film-forming itaconic acid polymer, or a copolymer thereof with acrylic acid, having a molecular weight of 15,000-200,000 and a viscosity between 100 and 4000 c.p.s. when in aqueous solution at 33% solids content. The method may be applied to an imaged planographic plate or to a surface intended for use as such a plate. The solution may additionally contain aluminium acid phosphate, monosodium phosphate, monopotassium phosphate, diammonium phosphate, cobalt phosphate, zinc phosphate, nickel phosphate, copper phosphate, cadmium phosphate and aluminium sulphate. The surface may be paper coated with zinc oxide, and a binder, e.g. styrene-butadiene copolymers, melamine resin, acrylic ester polymers, alkyd-styrene resins, vinyl acetatecrotonic acid copolymer, copolymerized vinyl acetate-crotonic acid and melamine crosslinking resins, melamine-alkyd resins, casein, and casein and styrene-butadiene mixtures. Other surfaces specified are aluminium, glass, calcium carbonate coated paper. A method of preparing an electrophotographic planographic plate in accordance with the invention comprises applying to a base, e.g. paper, an aqueous ammoniacal composition comprising a photoconductive pigment and a binder therefor which is a neutral amide of polyitaconic acid, polymonomethyl itaconic acid, or a long chain film-forming itaconic acid polymer, or copolymer with acrylic acid, having a molecular weight of 15,000-200,000 and a viscosity of 100-4000 c.p.s. when in aqueous solution at 33 % solids content; and drying the composition on the base. The photoconductive pigment may be zinc oxide. The plate so produced may be charged, imaged, developed and fixed by known electrophotographic techniques and then etched with prior art etching agents to render all non- image bearing areas hydrophilic.
Patent GB-924616-A (GB)
Title: Process of preparing polymers
IPC: C08G69/04
Filed: 1961-06-21
Abstract: <PICT:0924616/III/1> In an evaporation process, the liquid to be evaporated is introduced through inlet 55 into a frusto-conical chamber 44 wherein the liquid is distributed by rotating vanes 52 in the form of a film on the heated wall 43 of the chamber, the residual liquid being discharged through outlet 57.  The vapours flow through the shaft 46 via ports 51, and are discharged through outlet 62.  The liquid may be passed through a series of such evaporators.ALSO:<PICT:0924616/IV(a)/1> In a process for the continuous preparation of synthetic linear polymers containing recurring carbonamide groups as an integral part of the main polymer chain separated by at least two carbon atoms, an aqueous solution of a material capable of undergoing polycondensation to form said polymer is evaporated to reduce the water content thereof, the residue of the evaporation is heated under pressure to convert said material into a polymer capable of undergoing further condensation into a higher molecular weight polymer with elimination of water of reaction, the pressure on the partially converted product is reduced and the molecular weight of the partially converted product is increased and water of reaction is expelled therefrom, the aqueous solution is continuously annulated in the form of a turbulent thin annular film by being centrifuged against the inner periphery of an annulus, continuously moving said film along the length of said annulus, and the film heated during its movement therealong to reduce the water content of the aqueous solution.  In the example, an aqueous solution of hexamethylene adipamide is fed from the mix tanks 101 and 111 into the thin film evaporator 141 where it is subjected to heat and pressure, the resultant volatile products being removed, a titanium dioxide slurry added and the mass fed to a second film evaporator 221 where further volatile products are removed, then mass then being fed to the flasher 281 where the pressure is quickly reduced to atmospheric, the polymer being discharged via the final evaporator 351.  The construction of the evaporators is described.
Patent GB-443001-A (GB)
Title: Ignition noise suppressor system for vehicle radio receivers
IPC: G09F13/08
Filed: 1935-08-09
Abstract: 443,001. Wireless receiving systems. PHILADELPHIA STORAGE BATTERY CO., Ontario Street, Philadelphia, U.S.A. Aug. 9, 1935, No. 22543. Convention date, Sept. 20, 1934. Drawings to Specification. [Class 40 (v)] In a receiver particularly for operation near an ignition system generating damped waves a choke is connected between the aerial and the input tuned circuit, and arranged in an earthed metallic shield containing the receiver.
Patent GB-294994-A (GB)
Title: Improvements in or relating to the rectifying of mixed gases
IPC: F25J3/04
Filed: 1927-10-11
Abstract: 294,994. Allen, S. G., (Assignee of Baufre, W. L. de). Jan. 3, 1927, [Convention date]. Right to Patent relinquished. Separating gases by liquefaction.-The liquid component of rectification is withdrawn from the rectifying column as a liquid, and the pressure of rectification is controlled by the regulated withdrawal of the vapour component. Compressed air is supplied in excess through an interchanger A and an exchanger B in which liquid oxygen from the rectifier is evaporated and from which the gas returns through the intarchanger. The compressed air enters the bottom tube section c partly in liquid form. The liquid is throttled through a valve e and supplied to the tray section d of the rectifier to which the gas is supplied through the tubes f, escaping to the top tubes g which are provided with whirler strips to promote contact. The excess air is passed through an external refrigerating cycle D and supplies refrigeration to the top of the rectifier, as described in Specification 283,101. The rate of nitrogen withdrawal is controlled by an automatic pressure relief valve u in the outlet pipe controlled from the top of the rectifier, as shown, or from a point between the rectifier top and the interchanger or between sections of the interchanger.
Patent GB-1433435-A (GB)
Title: Roller assemblies for travelling webs
IPC: F16C13/00
Filed: 1974-05-21
Abstract: 1433435 Rollers A AHLSTROM DEVELOPMENT GmbH 21 May 1974 [3 July 1973] 22645/74 Heading F2U A roller comprises a non-rotating support 1 on which a plurality of roller sections 4 are rotatably mounted, each supported by a bearing unit 6 whose inner race is non-rotatably mounted on a sleeve 9 which is radially adjustable relative to the support 1 by biasing means in opposition to the contact pressure of a web 20, there being means for restraining the adjustment displacements to motions within a radial plane, and with only one degree of freedom. In Figs. 1 and 2 is shown an embodiment in which a sleeve 9 is mounted on one side in a pivot joint 10, the sleeve 9 being pivoted, and so moved substantially radially, by a headed stem 18, whose head bears against a sleeve 15 containing pressure medium. One sleeve 15 is common to all the stems 18 of the roller sections 4 to create a pressure balance. A pipe 23 and outlets 24 may spray lubricant on to the bearings 6. A resilient sleeve 5 may be provided over the sections 4. In alternative embodiments the sleeve 15 may be replaced by a bellows or a diaphragm individual to each stem 18, with the interior of the support 1 filled with a pressure medium to bias the stems 18 via these (Fig. 4, not shown) or the pressure medium may be in a separate pressure chamber within the support 1 (Fig. 5, not shown). In further alternative embodiments the pivots 10 are replaced by guides for guiding the adjustment of sleeves, bearings and roller sections in a single radial direction. One such is shown in Fig. 8 where two stems 41 are guided in ball bushings 45, rolling seals 47 being provided for the stems which are acted upon by pressure in the support 1. The stems may be as in Fig. 1 and act against a tube 15 (Fig. 6, not shown) and the straight-line guidance may be provided at the ends of a sleeve 9 which extends the entire length of a roller section 4, instead of with the stem or stems (Figs. 10 and 11, not shown). The roller may be a curved axis roller for stretching a material across its width (Figs. 13 and 14, not shown), the resilient cover 5 here being omitted. The web 20 may comprise paper.
Patent GB-1434217-A (GB)
Title: Acylation of aminobenzoic and aminohippuric acids
IPC: C07K1/08
Filed: 1973-05-11
Abstract: 1434217 Acylation of aminobenzoic and aminohippuric acids ROHM & HAAS CO 11 May 1973 [24 May 1972] 22690/73 Heading C2C An N-(N-acylaminoacyl)aminobenzoic acid or an N-(N-acylaminoacyl)aminohippuric acid is obtained by reacting a mixed anhydride of an N-acylamino acid with an aminobenzoic acid or an aminohippuric acid, in the presence of a strong acid as catalyst. Preferred mixed anhydrides are N-acylamino alkyl carbonates. Specified catalysts are strong inorganic and organic acids. The process may be carried out in the presence of an inert organic solvent. Examples are given which illustrate the process.
Patent GB-925744-A (GB)
Title: Improvements in or relating to electrical resistive components such as variable resistors and potentiometers
Inventor: RICHARDS CLAUDE LANGDON
IPC: H01C10/30
Filed: 1960-06-29
Abstract: 925,744. Variable resistors. PAINTON & CO. Ltd. June 29, 1961 [June 29, 1960], No. 22721/60. Class 37. A variable resistor is cooled by means of a resilient member disposed between the resistive element and the casing so as to conduct heat away from the element. As shown, a resistive wire 2 is wound on a synthetic resin or ceramic former 3 and contacted by a slider 6 rotatable by a spindle 7. The element 2 is cooled by conduction via a helix 8 of wire or tape sprung into the space between insulating layers 10, 11 of glass cloth and polyester film and the metal case 1. The resistive element 2 may be coated with insulating varnish. The spindle 7 is sealed by a synthetic rubber gland and the lid (not shown) attached by soldering or brazing. In Fig. 2 (not shown) the member 8 is replaced by an irregular mass of metal wool. The casing 1 may be perforated.
Patent GB-387711-A (GB)
Title: A rotary printing machine
IPC: B41F5/24
Filed: 1931-08-12
Abstract: 387,711. Printing-machines. FISCHER, G., 25, Detmolderstrasse, Bielefeld, Germany. Aug. 12, 1931, No. 22775. Convention date, Aug. 13, 1930. [Class 100 (ii).] Rotary machines.-A rotary machine which is especially applicable for printing in multicolour from rubber relief plates by aniline inks is constructed with two separate couples D2, F ; D3, F, and with an impression cylinder D<1> coacting with two printing-cylinders, and the machine is adapted to print four colours on one side of a web, to perfect a web in two colours, or to print three colours on either side of a web and one on the reverse. When printing in four colours, Fig. 1, the main driving shaft A gears by means of intermediate gears Z1, Z2 with the impression cylinders D1, D2, D3, and the path of the web is indicated in Fig. 1. For printing one side in three colours, the cylinders D2 are driven in the same direction as in Fig. 1, but the cylinder D3 is driven in the reverse direction by means of an extra gear between the cylinder D3 and the driving shaft A. As shown in Fig. 3, both the cylinders D2, D3 are driven by gears Z2, Z4 in directions opposite to that of Fig. 1, and the web is perfected in two colours by being passed first through the lower couples D2, F, D3, F and then around the cylinder D1 ; alternatively the web may be led around the cylinder D1 before the cylinders D2, D3.
Patent GB-1463028-A (GB)
Title: Substituted amino-s-triazines and their use in herbicidal compositions
IPC: A01N43/70
Filed: 1975-05-23
Abstract: 1463028 Substituted amino-s-triazines CELAMERCK GmbH & CO KG 23 May 1975 [24 May 1974] 22836/75 Heading C2C Novel compounds of Formula (I) where R 1  is Cl or CH 3 S-; R 2  is mono- or di- (C 1 -C 4 )alkylamino; R 3  is Cl, CH 3 S-, C 2 H 5 S-, or mono- or di-(C 1 -C 4 )alkylamino; and R 4  is C 1 -C 4  alkyl are used in herbicidal compositions. Compounds of Formula (I) in which R 3  is CH 3 S-, C 2 H 5 S- or mono- or di-(C 1 -C 4 )alkylamino may be prepared by reacting a compound of Formula (II) with a compound of Formula (VII) to give a compound of Formula (III) followed by reaction with a compound of formula H-R<SP>1</SP> 3  to give a compound of Formula (IV) where R<SP>1</SP> 3  is CH 3 S-, C 2 H 5 S-, or mono- or di- (C 1 -C 4 )alkylamino. Reaction of the compound of Formula (IV) with a compound of formula H-R 2  then results in the compound of Formula (I). Compounds of Formula (I) in which R 3  is chlorine may be prepared by reacting a compound of Formula (II<SP>1</SP>) with a compound of Formula (VII) above. Compounds of Formula (I) in which R 3  is chlorine may be converted to compounds of Formula (I) in which R 3  is CH 3 S-, C 2 H 5 S-, or mono- or di(C 1 -C 4 )alkylamino by reaction with a compound of formula H-R<SP>1</SP> 3 . Compounds of Formula (IIIG) in which R<SP>1</SP> 2  is chlorine may be prepared by reacting a compound of Formula (IIG) with a compound of Formula (VII) above.
Patent GB-372189-A (GB)
Title: Process for the recovery of arsenic from arseniferous metallurgical intermediate products and by-products
IPC: C01G28/00
Filed: 1931-08-13
Abstract: Acid solutions containing arsenic acid are treated with reducing agents, for instance with sulphur dioxide or sulphurous acid under pressure in a closed vessel having agitating means, and the arsenious acid produced allowed to precipitate, precipitation being assisted if necessary by concentration or cooling, or by addition of finely divided arsenious acid to the stirred solution. The solutions treated should preferably contain 100-120 grms. As2O5 per litre.  Materials treated comprise cadmium-bearing flue dust from lead shaft furnaces, refinery slags, and waste liquors from copper sulphate processes. Solid materials are roasted if necessary to convert arsenious to arsenic acid, and then extracted with sulphuric acid, preferably so that the solution obtained contains 100-200 grms. of free H2SO4 per litre.  In one example flue dust obtained from lead shaft furnaces is extracted hot with sulphuric acid, the lead sulphate sludge separated, the solution reduced with liquid sulphur dioxide under pressure, and the arsenious acid formed and precipitated removed. The strongly acid mother liquor is concentrated to deposit anhydrous cadmium sulphate, which is separated, and may then be used to leach a fresh batch of dust. In a second example a strongly acid residual liquor from a copper sulphate process containing nickel, copper, and arsenic acid is reduced with liquid sulphur dioxide, and the arsenious acid formed and precipitated removed.  From the mother liquor copper is removed by electrolysis, and anhydrous nickel sulphate by concentration.  In treating solutions containing a relatively small amount of arsenic, the solution is first concentrated to remove metallic salts present, and the arsenic then removed by reduction to, and precipitation as, arsenious acid.
Patent GB-857259-A (GB)
Title: Recovery of hydrocarbon diluent from process off-gas containing same
IPC: C08J11/02
Filed: 1959-07-03
Abstract: Hydrocarbon diluents are recovered from off-gases from processes in which the diluent has been used as reaction medium, the rate of flow of off-gas varying periodically, by introducing the off-gas into an absorption zone where the diluent is absorbed in an oil, and stripping the diluent from the oil which is recycled to the absorption zone.  The process may be an olefine polymerisation effected in the presence of pentane, isopentane, benzene, toluene, isooctane, cyclohexane, methylcyclohexane, decane or dodecane or other C3-C12 hydrocarbon. Off-gas saturated with the diluent is passed by a blower to the absorption tower.  If the off-gas rate varies from 1,000 to 50,000 SCF per hour the blower may pass gas at a rate of 15,000 SCF per hour.  The gas exit line from the absorber and the inlet to the blower are connected by a line in which gas may flow in either direction according to whether the off-gas rate is higher or lower than the blower output.  Excess gas from the absorber is burned at a flare.  Mineral seal oil of molecular weight 100-250 and boiling in the range 400 DEG  F.-600 DEG  F. is used as absorption oil and is stripped with steam.
Patent GB-1423215-A (GB)
Title: Microscopes
IPC: G02B21/24
Filed: 1973-05-14
Abstract: 1423215 Microscopes AMERICAN OPTICAL CORP 14 May 1973 [12 May 1972] 22904/73 Heading G2J A microscope comprises a support frame 5, a nosepiece 10 slidably mounted on the frame and adjustable by means of a rotatable cam 62 mounted on the frame. Coarse and fine adjustment means are provided for rotating the cam 62, the fine adjustment means acting through a reduction gear train 44,46,48,50. In the embodiment shown, the coarse adjustment hand wheels 32, 34 rotate a hollow shaft 39 to which is attached a gear-box 40 housing a gear train 44, 46, 48, 50 between an inner shaft 54, having fine adjustment handwheels 56, and internal gear teeth on the cam 62 which is rotatably mounted by a bush 64 on shaft 30. A cam follower 72 is mounted at the lower end of connecting rod 20 which actuates a pivoted rocker arm 16 on a bearing surface 14 of which rests the nosepiece 10 of the microscope.
Patent GB-424427-A (GB)
Title: Improvements in adjustable wheel mountings for tractors and similar vehicles
IPC: B62D61/12
Filed: 1933-08-17
Abstract: 424,427. Arrangement of vehicle wheels. CAPO, E., 37, Via Palestrina, Turin, Italy. Aug. 17, 1933, No. 22985. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 1, 1934.] [Class 108 (ii)] [See also Group XXXIV] In double-wheel systems comprising e.g. a road wheel 1 fitted with an elastic tyre alongside a tractor wheel 7 fitted with ground-engaging strakes, or a dual road-and-rail system of wheels, having adjustable double-eccentric mountings, the raising and lowering of the wheels is automatically effected by coupling one or both eccentrics to the axle. As shown in Fig. 1, road wheels 1 keyed to the axle 2 are arranged alongside tractor wheels 7 having hubs 6 mounted on eccentrics 5 which are adjustable around eccentrics 4 fixed to the ends of the axle-casing 3. By means of such adjustment, the wheels 1, 7 are arranged centralized on the axle so that the wheels 7 are operative, or the latter are raised clear of the ground-and de-clutched from the axle, as shown, respectively at the left- and right-hand sides of the Figure. The hubs 6 carry clutch-members 8 adapted to co-operate with clutch-members 9 keyed on the axle 2 and adjusted by a shaft 141. A second shaft 14<11>, parallel with the shaft 14<1>, carries a fork 13 engaging a sprocket 10 which meshes with an internal gear on the eccentric 5 and is fitted with clutch-teeth 10<1>, 10<11> for selective engagement with teeth on the end of the axle-sleeve 3 or a collar 11 fast on the axle. The clutch-wheel 10 is normally constrained to engage the axle-sleeve by means of a spring 12. The wheels 1, 7 are locked in either operative position by means of a lug on the shaft 14<11> cooperating with a cam-surface on the eccentric 5. The shafts 14<1>, 14<11> are normally locked together by the engagement of a spring-pressed pin 13<1>, Fig. 5, carried by the fork 13, with a notch in the shaft 14<1>. During the movement of the shaft 14<11>, the pin 131 is withdrawn from the shaft 14<1> by abutment with a projection on the axle-casing. In modifications, the two types of wheel, such as road-and-land or road- and-rail, are fitted on separate axles.
Patent GB-1385423-A (GB)
Title: Variable eddy current couplings
IPC: H02K49/04
Filed: 1972-05-16
Abstract: 1385423 Eddy current couplings ETABS E RAGONOT 16 May 1972 [18 May 1971] 23008/72 Heading H2A In a variable eddy current coupling comprising a toothed rotor 3 and a plain rotor 5 arranged within a stator 1 in which is mounted a fixed excitation coil 2, and two supporting end plates 7, 8, the stator includes at one extremity a radial portion which has axial cooling air openings 13 arranged in a circle and defines a passive air gap 11 with a relatively small diameter axial portion of the toothed rotor 3, a casing 9 for the coil 2 is firmly attached to the stator and forms an annular gap 10 with the toothed rotor small diameter portion, the toothed rotor includes at least two coaxial sets of teeth 31, 33 of which individual teeth are separated by slots 32, 34 and the sets are spaced by radial mechanical tics which have axial cooling air openings, the plain rotor 5 includes at least one plain circular ring 51 defining two coaxial active air gaps 14, 15 with the toothed rotor teeth and integral with the ring 51 a radial portion of a boss such radial portion having both axial openings 17 arranged in a circle and integral therewith a plurality of blades 52 also arranged in a circle so as to supply centrifugal ventilation when the plain rotor is rotating, and the end plates 7, 8 have radial openings 26, 27; when the coupling is operational cooling air is drawn in through the openings 26 in the end plate 7, flows along a path 25 which is generally axial and curving round the coil 2 and through the sets of teeth, and is expelled through the openings 27 in the end plate 1. Whilst in the embodiment shown the ties are formed by arms or plates 16, they alternatively may be formed by a ring or by casting. Preferably, a shaft 4, screwed to the toothed rotor 3, is coupled to a driven load whilst a shaft 6, keyed to the plain rotor 5, is coupled to a motor, but the functions of the shafts may be reversed. The shaft 4 may be hollow and receive a speedreducing device, and the coupling torque is adjustable by controlling the current feeding the coil 2 the resulting flux taking the path 24. In a modification, Fig. 4, the active air gaps are provided.
Patent GB-980479-A (GB)
Title: Motor or generator utilizing nutational motion
IPC: H02K41/00
Filed: 1963-06-10
Abstract: 980,479. Dynamo-electric-machines. BENDIX CORPORATION. June 10, 1963 [June 13, 1962], No. 23089/63. Heading H2A. In a nutatory motor, e.g. for starting I.C. engines, the rotor carries four armatures 46 which are subject to alternate axial force from stationary cores excited in sequence through a commutator 48, the nutational motion being converted to rotation of shaft 40 by interengaging toothed rings having a tooth-number difference of one tooth. The stator cores are polarized by magnets 28a-28d. If a high ratio of nutation to rotation is required, the meshing gears may have different ratios, the the drive being then taken from one of the toothed " stators." In a modification, the commutator consists of a series of spring- contacts which are closed in sequence by direct pressure of the armatures. The machine may act as a generator.
Patent GB-1369119-A (GB)
Title: Air pump for supplying air for afterburning exhaust gas of an internal combustion engine
IPC: F04C29/00
Filed: 1972-05-17
Abstract: 1369119 Rotary positive-displacement pumps ROBERT BOSCH GmbH 17 May 1972 [18 May 1971 30 June 1971] 23092/72 Heading F1F A vane-type air-pump for an I.C. engine exhaust system has its rotor 7 driven by a D.C. electric motor 2, which is cooled by air entering the pump by way of an inlet 14 and passage 15. The rotor is hollow, attached to a hub 8 on the shaft 9 of the motor and co-operates with vanes 5 carried by roller bearings on a fixed pin 4.