baber/WOPTO huggingface dataset:
Patent GB-773764-A (GB)
Title: Method of making printing plate
IPC: B41C1/02
Filed: 1955-09-07
Abstract: 773,764. Etching. CIABER BI-METAL PLATE CO., Inc. Sept. 7, 1955 [Sept. 14, 1954], No. 25620/55. Class 100(2) A method of making a metal printing plate comprises the steps of providing on the working surface of the plate a resist covered image, and etching the unimaged areas of the plate by means of an etchant liquid capable of reacting with the metal of the plate to form a precipitate which is insoluble in the etchant liquid. The etchant liquid is directed in streams against the working surface of the plate with a force such as to prevent the accumulation of the precipitate on the unimaged flat surface of the plate while leaving the precipitate as a resist on the etch-produced side 'walls hounding the unimaged areas. Preferably the plate to be etched comprises a magnesium base on which is provided a thin coating of zinc to form the working surface of the plate, the plate being supported face downwards during etching. A suitable etchant comprises 49-57 grams of aluminium nitrate or aluminium sulphate. 183-191 grams of ammonium persulphate, 750 millilitres of water to dissolve the aluminium salt and ammonium persulphate. 14 millilitres of ammonium hydroxide concentrate dissolved in water and water to make 1 litre, the pH value being maintained between 2.5 and 4.3. Alumina gel is precipitated on the metal surfaces of the plate. After etching the plate is treated to crystallize the alumina gel which is then brushed away. Plates curved after the application of the resist may also be etched. In the case of a plate in which the image comprises line work portions and half-tone portions the force of the stream of etchant liquid is adjusted so as to prevent accumulation of precipitate on the unimaged flat surfaces of the plate while leaving the precipitate in and marking the etched pits of the half-tone portion of the plate. Fresh etchant liquid is used for each plate. Specification 750,868 is referred to.
Patent GB-705442-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/04
Filed: 1951-11-02
Abstract: 705,442. Windscreen cleaners. O'SHEI, W. E. Nov. 2, 1951, No. 25744/51. Class 138 (1) In a windscreen wiper apparatus, for driving two wiper blades from a common motor of the kind in which the two wiper arm spindles are carried by a frame member and are each provided with a crank arm, the crank arms being connected by a substantially rigid rod or bar so that they will be moved together and the rod or bar is driven by a crank arm on a shaft carried by the frame member and driven by the motor, one of the crank pins of the three crank arms is movable relative to its associated crank arm in a direction radially with respect to the axis about which said crank arm rotates, whereby the pin automatically takes up a position in said crank arm which avoids binding. Wiper spindles 3, 3a, Fig. 1, carried in bearings 2, 2a at the ends of a frame member 1, are driven in unison from a suction motor 7 by means of a crank arm 9 on the motor shaft 7a , the connecting bar 6, and crank arms 4, 4a. The arm 9 has a slot 10 to slidably receive a crank pin 11 engaging in an aperture 15 in the bar 6. The crank pin 11, Fig. 2, has a shoulder 12 engaging one side of the crank arm 9 and is slidably secured in the slot 10 by rivetting the end 13 over against a washer 14 engaging the other side of the arm. In a modification the pin may be secured to the bar 6 and slidably engage in the slot. The slot may be open at its outer end. Instead of the motor crank-arm being slotted one of the wiper spindle crank arms may be slotted to receive its associated crank pin. The wiper motor with a slotted crank arm may be fitted to existing dual wiper installations providing the throw of the wiper blades is within the limits of the throw of the motor crank pin as defined by the length of the slot. The frame member may be constituted by part of the vehicle body.
Patent GB-1200698-A (GB)
Title: Process for the manufacture of 3 phenyl or substituted phenyl-7-amino-cumarins
IPC: C07D311/00
Filed: 1968-05-29
Abstract: 1,200,698. Coumarin derivatives. SHOWA KAGAKU KOGYO K.K. 29 May, 1968 [15 June, 1967], No. 25811/68. Heading C2C. Aminocoumarin derivatives of the formula in which Ar denotes a phenyl or substituted phenyl group, are prepared as follows. (1) A toluene derivative of the formula in which R denotes an alkyl group of 1-4 carbon atoms, is treated with an alkali-metal polysulphide in an alcohol to produce an aminobenzaldehyde derivative of the formula (2) The aminobenzaldehyde derivative, without isolation, is reacted with phenylacetic acid or a substituted phenylacetic acid or a derivative thereof, particularly a nitrile thereof, to produce an acrylic acid derivative of the formula which is claimed in Specification 1,200,699. (3) The acrylic acid derivative is dealkylated, suitably by treatment with aluminium chloride in a solvent, and (4) the dealkylated product is subjected to ring-closure by boiling in an acid. Examples are given in which Ar denotes phenyl, p-tolyl, p-chlorophenyl and p-methoxyphenyl.
Patent GB-190813-A (GB)
Title: Improvements in devices for typewriting machines for feeding, cutting off and removing forms
IPC: B41J11/70
Filed: 1921-09-30
Abstract: 190,813. Schoenenberg, W. Sept. 30, 1921. Web feeding and cutting arrangements; paper-shelves. - In apparatus supported on the papercarriage and comprising web feeding and cutting devices operated by moving a hand-lever in opposite directions, the hand-lever is arranged, after operating the cutting-device, to rock a frame for transferring the cut sheet to a pile supported by a shelf. In the apparatus shown, the hand-lever 20 on being moved forward operates a web-feeding roller 6, and on being moved rearward operates a vertically movable knife 54 and then operates a rocking frame 10 for transferring the sheet to a shelf 12. The web is folded and is supported by a tray detachably mounted on brackets 9 on the framework 1 of the apparatus. The web passes over a guide-roller 16 to the platen roller, and thence is lead over the feed-roller 6 and over a support 61 which is arranged underneath the knife, pressure-rollers 19 being arranged in contact with the feedroller. The hand-lever has a one-way connection with a pinion 32 gearing with a pinion 36 on the feed-roller. The connection consists of a ratchetwheel which engages a pawl on the pinion 32 and is provided on the hub with a pin engaging the front of a projection on the hub of the hand-lever, a returning-spring being arranged between the two hubs. The forward movement of the handlever is limited by an adjustable arm 26, in the path of a stop-screw 38 on the hand-lever. The arm is mounted on the spindle 22 of the handlever and is secured by passing a pin through one of a number of holes 41 in the arm. The knife is secured at the ends to blocks 54 sliding in guides 7 and connected by links 53 to arms 52 on a rock-shaft 51. An arm 50 on the rockshaft is provided with a pin 49 co-operating with a shoulder 63 formed in a slotted link 47 which is connected to a rocking arm 44 on the spindle 22 and is supported by a spring 64. On moving the hand-lever rearward, an arm 42 thereon engages an abutment 45 on the arm 44 and causes the link 47 to be drawn forward, the knife being thereby depressed. When the stroke of the knife is complete a screw 66 on one of the links 53 engages and depresses the link 47, thereby releasing the pin 49 and permitting springs 60 to return the knife to the normal position. The knife is provided at the front and back with vertically-movable web-clamping plates which are pressed downward by springs and normally depend below the edge of the knife. The plates press the web into contact with the support 61 when the knife descends, and the plates yield when the knife passes into a slot in the support. The frame 10 is secured to a rock-shaft 11 geared to a shaft 71 which is provided with an abutment 69 in the path of an arm 68 on the hand lever, the arm engaging the abutment at the end of the rearward movement of the hand-lever. The shaft 71 is provided with a returning-spring.
Patent GB-1107886-A (GB)
Title: Improvements in or relating to glass articles
IPC: C03C17/10
Filed: 1964-06-23
Abstract: A method of treating glass articles containing in at least a part of their surface a reducing agent, in particular flat glass produced in ribbon form on a bath of molten tin, comprises treating the said part of the article surface with a metal which does not normally exhibit a valency of one or a compound of such a metal for a sufficient time and at a sufficient temperature to introduce some of said metal into the glass article.  The bromides, chlorides, oxides, nitrates, sulphates or sulphites of iron, manganese, nickel or cobalt are sprayed or pasted on to the glass surface containing tin, the treated sheet then being maintained at 450 DEG -700 DEG  C. for up to ten minutes, the glass article then exhibiting an appropriate colour such as red, pink or brown, particularly red to reflected light and blue to transmitted light. Alternately a thin metal film may be deposited on the glass surface by vacuum deposition and subsequently oxidized and finally heated.  The reducing agent in the glass surface may be a reduced compound of arsenic or lead instead of tin.  To develop the colour, an additional heading step may be used in a non-oxidizing atmosphere.
Patent GB-887243-A (GB)
Title: Process for making cellular phenolic materials
Inventor: PHILLIPS LESLIE NATHAN
IPC: C08J9/00
Filed: 1959-07-29
Abstract: Cellular phenolic resins with improved texture are prepared by foaming a liquid phenolaldehyde resin containing a small amount of cellulose acetate butyrate using a carbonate and an acid.  In an example, a 15% solution of cellulose acetate butyrate in methyl "Cellosolve" (Registered Trade Mark) acetate is added to a phenolic syrup which is then blended with a carbonate and a strong acid added to give a rapidly foaming mixture.ALSO:Cellular phenolic resins with improved texture are prepared by foaming a liquid phenolaldehyde resin containing a small amount of cellulose acetate butyrate.  In an example, a 15% solution of cellulose acetate butyrate in methyl "Cellosolve" (Registered Trade Mark) acetate is added to a phenolic syrup which is then blended with a carbonate and a strong acid added to give a rapidly foaming mixture.
Patent GB-1186636-A (GB)
Title: Anaplasmosis Vaccines
Inventor: WELTER CLARENCE JOSEPH
IPC: A61K39/02
Filed: 1968-05-30
Abstract: 1,186,636. Anaplasmosis vaccine. DIAMOND LABORATORIES and UNIVERSITY OF ILLINOIS FOUNDATION. 30 May, 1968, No. 26021/68. Heading A5B. Anaplasmosis vaccine comprising an avirulent Anaplasma marginale mutant in a red blood cell carrier selected from the red blood cells of cattle, deer, sheep and goats may be prepared by exposing virulent Anaplasma margiriale to an amount of radiation sufficient to accelerate the rate of dissociation of the virulent Anaplasma marginale and to permit the selection of an avirulent form of this organism, passing the irradiated Anaplasma marfinale through the blood of at least one non- bovine ruminant host, and withdrawing blood of at least one host with the attentuated organism for use as said vaccine. The irradiated Anaplasma marginale may be serially passed through the blood of a plurality of non-bovine ruminant hosts. The radiation used may be X-ray or cobalt 60 radiation. The blood may be stored .under preserving conditions e.g. by desiccating the vaccine in admixture with polyvinylpyrrolidone, or by freezing the vaccine in admixture with glycerol. The withdrawn blood (with the addition of a clotting-preventing agent e.g. heparin) may be freeze-dried or frozen and the powder or frozen liquid respectively is stored. The vaccine may further comprise. a stabilizer e.g. polyvinyl pyrrolidone. The anaplasmosis vaccine may be suspended in sterile water or it may be in dry powdered or frozen liquid form.
Patent GB-599714-A (GB)
Title: Manufacture of biguanide derivatives
IPC: C07D295/215
Filed: 1945-10-08
Abstract: Biguanide derivatives of the general formula <FORM:0599714/IV/1> wherein A represents an aryl radical which may bear one or more neutral or basic substituents, R represents an alkyl or p  cycloalkyl radical and R1 hydrogen or an alkyl or cycloalkyl radical, or R and R1 form, with the adjacent nitrogen atom, a heterocyclic ring, X represents hydrogen or an alkyl or cycloalkyl radical, but either R1 or X is always hydrogen, and R11 represents hydrogen or an alkyl radical, are manufactured by the interaction of a substituted dicyandiamide <FORM:0599714/IV/2> with an arylamine ANHR11, e.g. by heating the substituted dicyandiamide with a salt of the arylamine in the presence of a solvent, e.g. water or b -ethoxyethanol.  The products are useful as chemotherapeutic agents or intermediates therefor, those in which A is an aryl radical substituted by at least one halogen atom in m- or p-position to the nitrogen atom and in which R, R1 and X together contain more than one and fewer than 8 carbon atoms being particularly suitable as antimalarial agents. In examples, the following compounds, in most cases in the form of their hydrochlorides, are prepared from the appropriate dicyandiamide derivatives and the hydrochlorides of the appropriate arylamines: (N1-phenyl-, N1-o-, -m- and -p-chloro-, -p-bromo-, -2 5 -, -2 : 3-, -2 : 5-, -2 : 6-, and -3 : 4- and 3 : 5-dichloro-, -p-methylthiol-, -p-31 : 51-dimethylphenoxy-, -p-odo-, -4-chloro-2-methyl-, -3-chloro-4-methyl-, -4-chloro-3-methyl-, -p-fluoro-, -p-nitro-, -m-and -p-cyano-, -3-chloro-4-bromo-, -3-chloro-4-iodo- and -3 : 4 : 5-trichloro-phenyl-, N1-6-bromo - 2 - naphthyl-, N1 - p - phenetyl-, N1-(diphenyl-4)- and N1-o-, -m- and -p-tolyl-N5-isopropylbiguanide; N1-p-tolyl- and N1-p-bromophenyl-N5-ethylbiguanide; N1-p-chlorophenyl-N1 - methyl - N5 - isopropylbiguanide; N1-o-, -m- and -p-chloro-, -p-nitro-, -p-cyano- and -p-iodo - phenyl - N5 - methyl - N5 - isopropylbiguanide; N1 - p - chlorophenyl - N5 : N5-cyclopentamethylenebiguanide; N1-m- and -p-chlorophenyl-N5 : N5-diethylbiguanide; N4 : N5-di-isopropyl-, N4-ethyl-N5-isopropyl-N4 - n - proyl - N5 - isopropyl-, N4 : N5-di-, methyl-, N4-methyl-N5-ethyl-, N4-methyl-N5-n-, butyl-, N4 - isopropyl - N5 - cyclohexyl-, and N5 - isobutyl - H1 - p - chlorophenylbiguanide; and N1 - p - phenetyl - N4 - isopropyl - N5 - n - butylbiguanide. Additional starting materials specified are, on the one hand, N3-n-propyl-N3-methyl-N3-n-propyl-, N3-ethyl-N3-n- and -isopropyl-, N3-methyl-N3-n-, -sec.- and -iso-butyl-, N3-sec.- and -tert.-butyl-, N3-n-amyl-, N2-methyl-N3-n- and -iso-propyl-, N2-methyl-N3-n-, -iso-, -sec.- and -tert.-butyl- and N2-ethyl-N3-n-propyl-, -butyl- and -amyl-dicyandiamide; and, on the other hand, m-bromo-, m-iodo-, 3 : 4-dibromo-, 3 : 4-diiodo-, 3-chloro-4-fluoro-, 3 : 5-dichloro-4-bromo-, 3 : 5-dichloro-4-iodo-, 3-iodo-4-chloro-, 3-bromo-4-chloro-, 4-chloro-3-nitro-and 3-chloro-4-nitroaniline. Specifications 599,713 and 599,722 are referred to.
Patent GB-1073627-A (GB)
Title: Polyamide resins
IPC: C08G69/34
Filed: 1964-06-24
Abstract: Polyamides are prepared from an aliphatic polycarboxylic acid having 10 to 20 C atoms per COOH group and a polyamine having 2 primary amine groups and not more than 8 C atoms in each unit connecting the amine groups in proportions providing 0.6 to 0.9 COOH groups per amine group, an aromatic or hydrogenated aromatic orthodicarboxylic acid or anhydride, and, if necessary to provide a "functionality" in the product of 1.8 to 2.0, an aliphatic monocarboxylic acid. "Functionality" is defined as the product of the number of moles of each constituent and the number of COOH or NH2 groups in that constituent divided by the total number of moles of all constituents. Specified aliphatic polycarboxylic acids are dimers and trimers of unsaturated monocarboxylic acids and specified polyamines have the formula H2N(RNH)xH where R is C1- 8 alkylene and x is 1 to 6.  In examples polyamides are prepared from an 83/17 mixture of di- and tri-linoleic acids, ethylene diamine, hexahydrophthalic anhydride and isooctanoic acid.  They may be used in printing inks.  An exemplified ink comprises the polyamide, barium lithol pigment, oleamide, polyethylene wax, aliphatic naptha, propyl alcohol, propyl acetate and dimethylpolysiloxane fluid.  They are also stated to be compatible with nitrocellulose.
Patent GB-158498-A (GB)
Title: Improvements relating to the treatment of water for softening, sterilising and like purposes
IPC: C02F1/42
Filed: 1920-09-13
Abstract: 158,498. Magrath, H. J. Sept. 13, 1920. Multiple-way plug-cocks. -A plug-cock described in connection with apparatus for treating water with zeolite &c. is constructed so that in the portion shown a chamber 29 communicates with a passage 41, and water from a chamber 30 passes through an opening 43 into the lower hollow portion of the plug and away through an aperture 48 in a screw plug 47. A more rapid discharge is obtained by screwing down the plug 47 so that water passes the seating 46 into an annular space 50 from which it is discharged through apertures 49. On rotating the plug 37 communication is opened from the chamber 29 to a passage 42 and from the chamber 30 to an outlet connected to an annular passage 45.
Patent GB-969094-A (GB)
Title: Gas-lubricated journal bearings
IPC: F16C33/10
Filed: 1962-07-09
Abstract: 969,094. Bearings. BROWN, BOVERI & CO. Ltd. July 9, 1962 [July 10, 1961], No. 26233/62. Heading F2A. A fluid bearing has a bush 2 with series of arcuate recesses 3 therein, one series being adjacent one end and the other series being adjacent the other end of the bearing. Each recess 3 has a groove 4 positioned at the leading part thereof, relative to the direction of rotation indicated. The grooves 4 are not connected with the atmospheric environment. The bush 2 has, in addition to the recesses 3, an annular groove 5 at each end which serve to stabilize the shaft. The depth of the recesses is equal to the clearance between the bush 2 and a shaft 1 mounted therein.
Patent GB-729813-A (GB)
Title: Remote registering and/or control systems for use with gas-filled or so-called pressurised power and telecommunication cables
IPC: G01M3/18
Filed: 1950-10-27
Abstract: 729,813. Indicating leakages in pipes. SINCLAIR, S. Jan. 24, 1952 [Jan. 27, 1950], No. 26257/50. Class 99 (2). [Also in Groups XIX, XXI and XXXVIII] Apparatus for indicating the presence of a fault in a gas-filled electrical cable comprises a plurality of pressure gauges arranged at spaced points along the cable and adapted to close electrical contacts when the pressure at their locality falls below a predetermined value, the closure of the contacts corresponding to any one gauge causing a sequence of electrical pulses characteristic of that gauge to be sent to a central station and thereby operate a selected one of a plurality of signal elements to indicate the location of the fault. The pressure gauges 2 arranged along the gas-filled cable.form parts of units A, B, C, D, E, &c. each comprising contacts a, b and c which are arranged to be bridged by members 1 attached to the pointers 3. In the normal positions of the pointers, the members 1 bridge the contacts a and b so that successive ones of the units A ... E are arranged in series with the conductor 11 from a central station 10. When a fault occurs along the cable, for example at unit A, the pressure there falls and the member 1 bridges the contacts band c, thereby dissociating all succeeding units from the conductor 11 and central station 10 which are then connected instead to impulse-generating apparatus via the contact c. Similar impulse-generating apparatus is associated with each of the units A ... E. Current flowing through the coil 15 attracts the armature 18 which consequently separates the contacts 16 and 17, so opencircuiting the circuit of the coil 15 and releasing the armature 18, whereupon contacts 16 and 17 close and current flows once more through coil 15. The repeated movement of armature 18 thus steps ratchet 20 round and, together with the ratchet 20, a cam 21 carrying a number of lobes corresponding to the particular impulsegenerating apparatus with which it is associated. Thus in the arrangement shown, rotation of the cam 21 causes a single impulse to be sent to the central station where it actuates a rotary switch 9 to position the wiper arm upon the first contact 23 thereof. Each contact is associated with its own indicating circuit comprising a self-holding .relay 27 and visual and audible alarm 25 and 26. A switch 28 is provided for releasing the self-holding relay 27. Each of the units A....E may be provided with further contacts d which may be used to control further apparatus, such as a valve 4 for injecting make-up gas from a cylinder 5 or for releasing fire-extinguishing or fire suppressing fluid.
Patent GB-383353-A (GB)
Title: An improved means of preparing goffered films bearing sound records
IPC: G03C7/24
Filed: 1931-09-21
Abstract: 383,353. Combined sound and picture films. KELLER-DORIAN COLORFILM CORPORATION, 522, 5th Avenue, New York, U.S.A. Sept. 21, 1931, No. 26387. Convention date, Oct. 13, 1930. [Class 40 (ii).] Goffered films for use in the recording of coloured talking-picture films are treated so that the grooves are eliminated from part of the width of the film either by abrading or polishing off the material of the film down to the bases of the grooves or by filling in the grooves up to the level of the tops thereof. After the grooves on a portion of the width of the film have been filled in, a non-goffered sound-record film may be secured, by an adhesive, to the levelled part. A film 3, Fig. 3, is goffered by feeding it between the engraving cylinder 2 and a supporting cylinder 4, the film being guided by guides 5, 6. A band 7 is subjected to treatment for removal of the goffering therefrom, thus leaving a portion 8 on which the coloured motion-picture may be photographed, the non-goffered portion 7 being adapted to receive the sound-recording 10. The goffering may be removed from the band 7 by polishing with the aid of abrading materials. Alternatively, the goffering along a band 11, Fig. 2, may be removed by applying a transparent composition 13 from a supply nozzle 14 so as to fill in the grooves of the goffered surface, the film being fed forward by a sprocket 15. The composition 13 may be an adhesive composition of collodion, or a solution of gelatine, or a cellulose solution. According to a modified method, after the band 11 has been levelled by application of the adhesive composition, an ordinary non-goffered sound-record film may be applied thereover and secured by the adhesive. Specification 317,060, [Class 97 (i), Optical systems &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also means for producing lentioulations across a portion only of the film by effecting the goffering by means of a cylinder which is engraved along a part only of its length. This subject-matter does not appear in the Specification as accepted.
Patent GB-932487-A (GB)
Title: Piperidine derivatives
IPC: C07D211/62
Filed: 1961-07-20
Abstract: The invention comprises compounds of the formula:-<FORM:0932487/IV(a)/1> (wherein R1 is a phenyl, benzyl, trifluoromethylphenyl, fluorophenyl or chlorophenyl radical, R2 is a hydrogen atom or a lower alkyl or lower hydroxyalkyl radical, and R3 is a hydrogen atom or an amino, lower alkyl, lower monodi- and tri-hydroxyalkyl radical) and their non-toxic acid salts, e.g. hydrochloride, hydrobromide, tartrate, maleate, methobromide, ethochloride and ethobromide.  The compounds are prepared by treating an alkoxycarbonyl pyridine with a primary or secondary amine or hydrazine, catalytically hydrogenating the pyridine carboxamide or hydrazide obtained and alkylating the resulting piperidine carboxamide or hydrazide by reaction with a primary alkyl halide of the formula <FORM:0932487/IV(a)/2> itself prepared by condensation of an o -haloalkyl phenyl ketone with an aralkyl Grignard reagent R1MgX. The invention is illustrated by 22 detailed examples.  The compounds display anti-inflammatory activity and other pharmacological properties.