baber/WOPTO huggingface dataset:
Patent GB-1233403-A (GB)
IPC: C07D303/48
Filed: 1969-04-03
Abstract: 1,233,403. Hexafluoropropylene epoxide. E. I. DUPONT DE NEMOURS & CO. 3 April, 1969 [9 April,1968],No.17711/69. HeadingC2C. Hexafluoropropylene epoxide is prepared by oxidizing hexafluoropropylene in the presence of an inert neutral aromatic compound. Examples of such aromatic compounds include benzene, nitrobenzene, halo-benzenes (e.g. hexafluorobenzene, dichlorobenzene or bromobenzene) naphthalene, anthracene, diphenyl, diphenyl ether and polyphenyl ether. Preferably the oxidation is effected by contacting hexafluoropropylene with oxygen at a temperature of 130 to 250 C. under superatmospheric pressure, e.g. 100 to 700 p.s.i.g.
Patent GB-1234041-A (GB)
IPC: B41N1/18
Filed: 1968-05-21
Abstract: 1,234,041. Etching. DOW CHEMICAL CO. 21 May, 1968 [23 May, 1967], No. 24167/68. Heading B6J. A curved plate (e.g. a metal printing plate) 17 is etched by applying a resist image to the surface and repeatedly impinging a series of increments of liquid etchant against the surface while rotating the plate about its axis of curvature, the axis being substantially horizontal, the increments being directed towards the plate, alternately at an angle of x degrees relative to the axis and then at an angle of (180 - x) degrees to the axis, x being a number from 30-60. The plate is supported on a holder 19 rotatable about an axis 18 and the etchant may be directed towards the plate by jets 31 and rotating vanes 29. There are two sets of jets at each point 31 running longitudinally of the supported plate, and angled to provide the abovementioned angles of incidence on the plate after deflection from the vanes. A sliding valve distributes the etchant alternately to each of the sets of jets. Vanes 30 may splash etchant upwardly against the plate. Heating and cooling coils 15, 14 may be provided in the sump. The plate may be of magnesium alloy and the etchant may be nitric acid, a filming agent and an immiscible organic solvent.
Patent GB-1238893-A (GB)
IPC: C08F10/00
Filed: 1968-10-23
Abstract: 1,238,893. Ethylene-vinyl ester copolymers. WACKER-CHEMIE G.m.b.H. 23 Oct., 1968 [23 Oct., 1967], No. 50393/68. Heading C3P. Copolymers of ethylene and 10-80% mol. of a vinyl ester of a C 9 , branched chain carboxylic acid are obtained by aqueous emulsion polymerization in the presence of a peroxy compound, hydrogen and a colloidal noble metal of Group VIII of the Periodic Table, particularly palladium. The branched chain acid is preferably a mixture of "Versatic" (Registered Trade Mark) acids, or isononane acid; vinyl acetate may also be included to form a terpolymer.
Patent GB-1239073-A (GB)
IPC: C07J1/00
Filed: 1968-07-09
Abstract: 1,239,073. Beta - hydroxy - steroid - ketones. CIBA-GEIGY A.G. 9 July, 1968 [13 July, 1967], No. 32617/68. Headings C2C and C2U. Beta - hydroxy - steroid - ketones (including those derived from ring-expanded or -contracted steroids) are prepared by treating α,#-oxido. steroid-ketones in which at least one of the two named functional groups is directly attached to the steroid ring-system with a trialkylstannane in a solvent under ultraviolet irradiation, possibly in the presence of a sensitizer such as triphenylene. Suitable starting materials include 4,5-oxido-3-oxo-, 1,2-oxido-3-oxo-, 4,5- oxido-6-oxo-, 5,6-oxido-7-oxo-, 9,10-oxido-11- oxo-, 3,4-oxido-2-oxo- and 9,11-oxido-12-oxosteroids. Novel products are 17-oxygenated-5- hydroxy-3-oxo compounds of the 5α- and 5#- androstane and -19-nor-androstane series unsubstituted in position-4 and containing at least one of the 3 features (a) #<SP>1</SP>-unsaturation; (b) a 7-methyl group; and (c) beta configuration at C-5 together with 19-nor-structure, the 17- substituent(s) being either an oxo group or a free, esterified or etherified OH group together with a hydrogen atom or a C 1-4  substituted or unsubstituted aliphatic hydrocarbon radical. Examples are given; a by-product in the splitting of (a) #<SP>5</SP>-3#-acetoxy-16α,17α-oxido-pregnen- 20-one is #<SP>5</SP>-3#-acetoxy-pregnene-16,20-dione; (b) 1α,2α - oxido - 17# - acetoxy - 5α - androstan - 3 - one is 17# - acetoxy - 5α - androstan - 3- one; (c) #<SP>4</SP>-1α,2α-oxido-17#-acetoxy-androsten- 3-one is #<SP>3</SP>-1-hydroxymethylene-17#-acetoxy-#- nor-androsten-2-one; (d) #<SP>1</SP>-4#,5#-oxido-17#- acetoxy-androsten-3-one are 4#,5#-oxido-17#- acetoxy-androstan-3-one, #<SP>1(10)</SP>-17 #-acetoxy- 5,10 - seco - androstene - 3,5 - dione, testosterone acetate, 1 - dehydrotestosterone acetate and 5#- hydroxy - 17# - acetoxy - androstan - 3 - one; and (e) 4α,5α - oxido - 17# - acetoxy - androstan - 3 - one is the same as that under (b) above. The novel steroids possess pharmacological activity and may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1252061-A (GB)
IPC: G03C1/91
Filed: 1969-03-14
Abstract: 1,252,061. Photographic paper 4-methylpentene-l polymer coating. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb.24, 1970 [March 14, 1969], No. 13575/69. Heading G2C. A photographic paper is coated on both sides with a moisture-impermeable layer, one of which is of a 4-methylpentene-1 polymer coated with the radiation sensitive material. The other moisture-impermeable layer may be of the same polymer or of polythene for example. Before applying the radiation sensitive layer the coating of the pentene polymer may be subjected to a corona discharge treatment to reduce the water contact angle to less than 75 degrees, thus promoting adhesion to an initial gelatine layer, which may be unsensitized, and is preferably applied within one hour of the treatment. The gelatine layer may be a gelatine silver halide emulsion layer. The thickness of the paper sheet is preferably between 120 and 250 microns and the thickness of the moisture impervious layer is preferably 20 to 25 microns. The melting point of 4-methylpentene-1 polymers is about 240‹C. and is well above the usual temperature of drying rolls (about 140‹ C. ) and thus little, if any, melting of the polymer occurs during drying- after processing, and no smearing of pigments is caused.
Patent GB-1265001-A (GB)
IPC: C07F7/21
Filed: 1968-03-29
Abstract: 1,265,001. Lithium-substituted silazanes. MIDLAND SILICONES Ltd. 25 March, 1969 [29 March, 1968; 11 July, 1968], Nos. 15280/68 and 33067/68. Heading C3S. Novel lithium-substituted cyclic silazanes of the formulµ wherein each R represents a C 1-4  alkyl or alkenyl radical or a phenyl radical, X represents hydrogen, lithium, a monovalent hydrocarbon radical or an inertly-substituted monovalent hydrocarbon radical, and Y represents a monovalent hydrocarbon radical, an inertly-substituted monovalent hydrocarbon radical, an -R 2 SiOLi radical, a silyl group or a siloxane residue, are prepared by reacting in the presence of an organic solvent (A) an alkyl, alkenyl or aryl lithium compound with (B) a compound of the general formulae wherein X<SP>1</SP> represents hydrogen, a monovalent hydrocarbon radical or an inertly-substituted monovalent hydrocarbon radical, and Z represents a monovalent hydrocarbon radical, an inertly-substituted monovalent hydrocarbon radical, a silyl group or a siloxane residue, to form intermediate cyclic silazane compounds having one or two lithium atoms directly attached to nitrogen in the cyclic structure, and thereafter allowing said intermediates, if necessary by increasing the temperature, to convert to cyclic structures having fewer ring members, whereby there is obtained by the reaction of (A) with (a) a compound of the general formula (1), or, when X<SP>1</SP> is hydrogen and sufficient of (A) is employed to react with both -NH groups in (a), a compound of the general formula (2), wherein Y is the -R 2 SiOLi radical, with the formation as an intermediate product of a compound having the general formula (1) in which X represents a lithium atom, and whereby there is obtained by the reaction of (A) with (b) a compound of the general formula (2). Uses.-as chemical intermediates, particularly for further reaction with organochlorosiloxanes and mono-, di-, tri- or tetrachlorosilanes to provide polymers or other monomers. In examples lithium-substituted silazanes of the above general formulµ are prepared and further reacted without isolation with dimethylvinylchlorosilane, (dimethylamino) dimethylchlorosilane and chlorotrimethylsilane to give as products 1 - pentamethyldisiloxanyl - 2,2,4,4, 6,6 - hexamethyl - 1,3 - diaza - 5 - oxa - 2,4,6- trisilacyclohexane, 1 - pentamethyldisiloxanyl- 3 - trimethylsilyl - 2,2,4,4,6,6 - hexamethyl- 1,3 - diaza - 5 - oxa - 2,4,6 - trisilacyclohexane, 1 - (1,1,3,3 - tetramethyl - 3 - vinyldisiloxanyl). 3 - dimethylvinylsilyl - 2,2,4,4,6,6 - hexamethyl - 1,3 - diaza - 5 - oxa - 2,4,6 - trisilacyclohexane, 1 - dimethylamino - dimethylsilyl- 3(3 - dimethylamino - 1,1,3,3 - pentamethyldisiloxanyl) - 2,2,4,4 - tetramethylcyclo-disilazane, and 1 - trimethylsilyl - 3 - pentamethyldisiloxanyl - 2,2,4,4 - tetramethylcyclodisilazane.
Patent GB-1288571-A (GB)
IPC: A01K1/10
Filed: 1969-05-30
Abstract: 1288571 Animal feeding apparatus R WILLEY 8 May 1970 [30 May 1969] 27507/69 Heading AIM Animal feeding apparatus comprises an annular feeding trough in the centre of which stands a cylindrical forage container having a perforated base wall and a conical base 3 such that animals can withdraw forage from the container. The trough and conical base are preferably integrally formed of plastics material and a plastics sleeve 7 prevents food from being withdrawn from the upper portion of the container wall. Teats which are connected to a liquid container in the base I may be provided.
Patent GB-1288783-A (GB)
IPC: B60R1/076
Filed: 1969-11-12
Abstract: 1288783 Vehicle rear-view mirrors SOC COMMERCIALE DU COMPTOIR DES INVENTIONS PRATIQUES POUR L'AUTOMOBILE 12 Nov 1969 [13 Dec 1968] 55323/69 Heading B7J A vehicle rear-view mirror assembly comprises a mirror 32 mounted on a tubular support arm 1 housing a resilient device, such as a rod 4, 5 and spring 8 as shown; prior to fixing the arm 1 to a sole-plate 18 mounted on a vehicle body the spring 8 is maintained in compression and a portion 10 of the rod 4, 5, the portion forming part of an interfitting connection with the sole-plate, is held outside the arm by a releasable means such as a removable pin 12 (Fig. 2); after the portion 10 has been connected to the sole-plate the pin 12 is removed and the spring 8 urges the arm 1 and sole-plate into engagement. In Figs. 1 and 2, the portion 10 is T-shaped and engages under two spaced lugs 21 formed in a washer 20 of the sole-plate 18. In an alternative embodiment (Figs. 7 and 8) the resilient device is a coil spring which is tensioned prior to fixing, the interfitting connection comprising a hook and strap. Alternatively, the sole-plate may be formed on a part of a vehicle body during manufacture.
Patent GB-1303378-A (GB)
IPC: C10L3/02
Filed: 1971-06-18
Abstract: 1303378 Fuel gas storage IWATANI & CO Ltd 18 June 1971 28791/71 Heading F4P A fuel gas comprising a mixture of 65 to 90% acetylene and 10 to 25% by volume of ethane, ethylene, propylene, propane, butane or a mixture thereof is stored under pressure in a container charged with porous material, e.g. charcoal impregnated with a solvent for the gas mixture and comprising acetone, toluene, xylene or a mixture thereof. Other porous materials include silica gel, alumina slag and diatomaceous earth.
Patent GB-1303995-A (GB)
IPC: B23C5/22
Filed: 1969-05-29
Abstract: 1303995 Milling cutters WICKMAN WIMET Ltd 8 May 1970 [29 May 1969] 27149/69 Heading B3K The body 10 of a milling cutter has a central recess at one end, defining an annular end portion 11 in which a plurality of generally radial slots 12 are formed (only one shown), each slot embracing a tip retaining wedge 18 whose radially inner end 18a has a lateral extension accommodating a grub screw 19 which abuts the inner periphery of end portion 11 to draw wedge 18 inwards to clamp tip 17. The tip 17, which is square, but could be triangular or rhomboidal, seats against a shoe 15 in an elongate recess 13; the shoe is secured in the recess by a wedge piece (14) (Fig. 2, not shown).
Patent GB-1306958-A (GB)
Title: Process for the preparation of substituted cobamides
IPC: C07H23/00
Filed: 1970-09-30
Abstract: 1306958 Substituted cobamides PIERREL SpA 2 Sept 1971 [30 Sept 1970] 46545/70 Heading C2V In a process for the preparation of α-(5,6- dimethylbenziminazolyl) - methyl - cobamide a solution of α-(5,6-dimethylbenziminazolyl)- hydroxy-cobarnide is exposed to white light while being reduced with stannous chloride in an inert atmosphere, the resulting solution under nitrogen and away from light is passed through an anionic exchange resin to remove impurities, then reacted with a methyl halide to obtain the methyl derivative which is absorbed on a non-ionic resin in a column, eluted and the final product crystallized from the eluate. An example is given.
Patent GB-1307991-A (GB)
Title: Moving contact arrangements for electric circuit-breakers
IPC: H01H33/666
Filed: 1969-01-23
Abstract: 1307991 One-way detents; stopping machines at definite positions A REYROLLE & CO Ltd 23 April 1970 [23 Jan 1969] 3885/69 Heading F2E [Also in Division H1] An electrical circuit breaker has automatic adjustment to compensate for contact wear. As shown in Figs. 1 and 2, a spring-biased plate 27 is rotatably mounted on the end wall 14 of the switch casing 10 and carries an arcuate, stepped abutment block 28 which provides an adjustable fulcrum for the roller 20 at the end of operating lever 17. The plate also carries a latching mechanism 30 comprising a lever 31 engaging a stepped block 34, thus retaining a selected step on the block 28 under the roller 20 as long as contact wear does not exceed a certain value. A closing movement of operating rod 15 pivots lever 17 about roller 20 as it engages a step on block 28. After the contacts 11, 12 have engaged, the lever 17 pivots about pin 19, lifting roller 20 clear of the block 28. When the contacts have worn to a predetermined extent, the latch lever, which is raised by the contact-closing movement, clears the side of the adjacent step of the latch block 34, thereby unlatching the plate 27. When the roller 20 now rises off the block 28, the plate will be rotated by spring 29 until the lever 31 engages the side of the next higher step thus also moving the next lower step of block 28 beneath the roller. After the maximum permissible contact wear has taken place, a projection 37 moves under lever 17 to prevent reclosing of the contacts. The plate may carry a scale so as to give a visual indication of the extent of contact wear. Several vacuum interrupters of the above type may be connected in series and have a common operating shaft. In Fig. 6 (not shown) the block 28 is replaced by a radially-stepped edge cam, having a series of radial steps of progressivelyincreasing height.
Patent GB-1310667-A (GB)
Title: Rotating blade folder
IPC: B65H45/18
Filed: 1971-03-16
Abstract: 1310667 Rotary folders TIMSONS Ltd 8 March 1972 [16 March 1971] 7351/71 Heading B8R In a rotary folder of the kind in which a blade 1 mounted in a holder 4 rotatable about an axis a provided on a rotatable carrier 5 tucks sheets, signatures or collections thereof between the nip of fold rollers 2, 3 at regularly spaced intervals, toothed pulleys 17, 18 or sprockets are rigidly secured respectively to fixed coaxial shafts 11 about which the carrier is rotatable, and to the holder 4 and toothed endless driving members, e.g. resilient belts 19 or chains, are passed around said pulleys or sprockets. Thus when the carrier is rotated about shafts 11, e.g. by driven toothed belts 16 engaging toothed pulleys 10 fixed to the carrier 5, the blade holder 4 is rotated aboutits own axis a. The carrier may comprise two spaced arms 6 carrying a balance weight 7 at one of their ends and the holder at their other ends.
Patent GB-1311432-A (GB)
Title: Guanidine derivatives their preparation and antiviral compositions containing them
Inventor: SWALLOW D L
IPC: A61K31/17
Filed: 1971-01-07
Abstract: 1311432 Substituted ureas IMPERIAL CHEMICAL INDUSTRIES Ltd 13 Dec 1971 [7 Jan 1971] 777/71 Heading C2C [Also in Division A5] Novel substituted ureas of the formula and pharmaceutically acceptable acid addition salts thereof, wherein either R<SP>1</SP> is ethyl, R<SP>2</SP> is bromophenyl and the group -NHCONHR<SP>2</SP> is in the meta-position, or R<SP>1</SP> is isopropyl, isobutyl, isopentyl or phenyl, R<SP>2</SP> is chlorophenyl, bromophenyl, nitrophenyl, ethoxyphenyl or tolyl and the group -NHCONHR<SP>2</SP> is in the meta- or para-position, or R<SP>1</SP> is chlorophenyl, R<SP>2</SP> is C 3-10  alkyl and the group -NHCONHR<SP>2</SP> is in the meta-position, or R<SP>1</SP> is chlorophenyl or tolyl, R<SP>2</SP> is phenyl or o-chlorophenyl and the group NHCONHR<SP>2</SP> is in the para-position are prepared by one of the following processes: (a) reacting the appropriate 1-R<SP>1</SP>-3-(aminophenyl) guanidines with isocyanates of the formula R<SP>2</SP>NCO; (b) reacting thioureido compounds of the Formula III with ammonia in the presence of a catalyst; (c) reacting alkyl or aralkyl thiourium salts derived from thioureas of the above Formula III with ammonia; or (d) oxidizing thioureido compounds of the Formula V 1 - (3 - p - Chlorophenylureido - 3 - (3 - isobutylthioureido)benzene is obtained by reacting p-chlorophenyl isocyanate with 1-isobutyl-3-mphenylaminothiourea. 1 - (p - Chlorophenyl) - 3 - (m - aminophenyl)- guanidine dihydrochloride is prepared by reacting ammonia in the presence of mercuric oxide with 1-(p-chlorophenyl)-3-(m-aminophenyl)thiourea, obtained by reacting p-chlorophenyl isothiocyanate with m-phenylenediamine. 1 - (3 - Isopropylthioureido) - 3 - (3 - p - chlorophenylureido)benzene is made by reacting isopropyl isothiocyanate with 3-(3-p-chlorophenylureido)aniline resulting from the reaction between m-phenylenediamine and p-chlorophenyl isocyanate. 1 - Isobutyl - 3 - (m - aminophenyl)guanidine dihydrochloride is prepared by reacting ammonia in the presence of mercuric oxide with 1-isobutyl-3-(m-aminophenyl)thiourea obtained by reacting isobutyl isothiocyanate with m-phenylenediamine.
Patent GB-1315131-A (GB)
Title: Compositions containing plant growth regulants
Filed: 1970-03-11
Abstract: 1315131 Plant growth regulant compositions RUBBER RESEARCH INSTITUTE OF MALAYA 19 April 1971 [11 March 1970] 11750/70 Heading C1B A composition for use in plant growth regulation, particularly for stimulating yield of rubber latex from Hevea brasiliensis, comprises (a) a volatile or gaseous plant growth regulant and (b) a solid non-volatile adsorbent material dispersed in (c) a viscous fluid medium. Specified composition components are: (a) ethylene, propylene, acetylene, and the halogenoparaffins; (b) activated charcoal, silica gel and the alumino-silicates known as zeolites or molecular sieves; and (c) animal, vegetable or mineral fats or oils, petroleum jelly, paraffin and other waxes, polyethylene oxide, polyethylene glycol, gelatine, agar and natural rubber coagulum.
Patent GB-1317207-A (GB)
Title: Printers
IPC: B41J2/49
Filed: 1970-08-19
Abstract: 1317207 Selective printing CROSFIELD BUSINESS MACHINES Ltd 28 July 1971 [19 Aug 1970] 39967/70 Heading B6F A printer includes a stylus 10 which is displaced within the writing plane to trace characters by members 14, 16 formed of material which is dimensionally responsive to electric signals Vx, Vy applied thereto. The members 14, 16 may be bimorph elements which bend in response to the electrical signals, and may be formed of lead zirconate titanate. Alternatively magnetostrictive elements may be employed. A solenoid may be provided to lift the stylus from the writing plane.
Patent GB-1334534-A (GB)
Title: Deflection and pincushion correction circuit
IPC: H04N3/233
Filed: 1971-04-19
Abstract: 1334534 Cathode-ray tube circuits RCA CORPORATION 19 April 1971 [11 March 1970] 11688/70 Heading H4T In a (television) cathode-ray tube display circuit arrangement for producing top and bottom pincushion distortion correction, the correction waveform, comprising parabolic shaped line frequency pulses amplitude and polarity modulated by the vertical deflection sawtooth (waveform D) is supplied from a low impedance output Z of the vertical deflection output amplifier 100 to the vertical scanning yoke 126, 126 and because of the high impedance of the yoke to the line frequency correction components the latter are introduced into the yoke by means of an "impedance matching" transformer the secondary 145 of which is connected in series with the yoke windings and the primary 142 of which together with a capacitor 146 resonates at line frequency and therefore presents a high impedance at the vertical deflection frequency across the yoke. Waveform E shows the actual yoke current during the upper and lower halves of the vertical scan, periods T1 and T2 respectively and to maintain the parabolic shape of the line frequency components a sample of the latter, developed across resistor 134, together with a sample of the vertical deflection current, developed across resistor 132 is employed in a negative feed-back path via resistor 129. A waveshaping network 155 supplies an S-shaping signal at terminal B to the B input of the vertical deflection generator 50 and centring is effected by means of adjustable resistor 136. For the production of the parabolic line frequency components the vertical sawtooth from terminal A of the vertical deflection generator 50 is supplied to the collector of transistor 62 and "chopped" into line frequency pulses by means of horizontal fly-back pulses supplied to the base electrode from the horizontal deflection generator 40. The "chopped" waveform is then amplified by transistor 64 and the parabolic shape is produced by a negative feed-back path which includes a first differentiating circuit comprising capacitor 75 and resistor 76, transistor 66 and a second differentiating circuit comprising capacitor 77 and a resistive portion formed by the input impedance of the base circuit of transistor 64. The phase of the correction is adjusted by resistor 73. Parameter values are given.