baber/WOPTO huggingface dataset:
Patent GB-1313875-A (GB)
Title: Elastomeric compositions
IPC: C07C45/74
Filed: 1970-06-08
Abstract: 1313875 Dinorbornene compounds E I DU PONT DE NEMOURS & CO 8 June 1970 [9 June 1969] 27656/70 Heading C2C [Also in Divisions C3 and C5] Example I describes the preparation of dinorbornene compounds of the formula in which X and Y are both hydrogen, n is 1 except where indicated below, and R is a variety of divalent radicals containing ether, ester or ketone groups. The following are the actual compounds prepared: (A) 1,4 - bis - (5 - norbornen - 2 - ylmethoxy)- 2-butene from 5-norbornene-2-methanol and 1,4-dichloro-2-butene; (B) bis - [2 - (5 - norbornen - 2 - ylmethoxy)- ethyl]ether from 5-norbornene-2-methanol and bis-(2-chloroethyl)ether; (C) a compound designated 1,5-bis-(5-norbornen-2-yl)-1,4-pentadien-3-one but in which n is 1À6 from 5-norbornene-2-carboxaldehyde and acetone; (D) 5 - norbornen - 2 - ylmethyl 5 - norbornen-2-carboxylate prepared by the oxidation of 5-norbornene-2-carboxaldehyde; (E) the diester of ethylene glycol with 5-norbornene-2-carboxylic acid, starting from the methyl ester of the acid; and (F) to (M) diesters of 5-norbornene-2-methanol with, respectively, adipic acid, maleic acid, succinic acid, sebacic acid, phthalic acid, terephthalic acid, isophthalic acid, and 5-norbornene-2,3-dicarboxylic acid, starting variously from the acid, or its chloride, anhydride or dimethyl ester. The products are anti-ozonants for chloroprene polymers and copolymers.
Patent GB-805584-A (GB)
Title: Steroid compounds
IPC: C07J75/00
Filed: 1955-11-28
Abstract: The invention comprises epoxy-steroid compounds of the general formula <FORM:0805584/IV (b)/1> wherein X represents bromine or chlorine, and R represents a group convertible to a hydroxy group by hydrolysis such as an ether or acyloxy group, and the preparation thereof by reacting an organic peracid with a steroid compound of the general formula <FORM:0805584/IV (b)/2> wherein R and X have the above significance, which may be prepared by a process described and claimed in Specification 805,583.  The invention also includes a process for the preparation of 3b ,17a -dihydroxy-20-keto- D 5-pregnene by treating the above epoxy-steroid compounds with an inorganic base, e.g. sodium or potassium hydroxide or potassium methoxide or any other hydroxide, alkoxide, carbonate or bicarbonate of an alkali or alkaline earth metal.  Suitable organic peracids are aromatic percarboxylic acids such as perbenzoic or perphthalic acid, and aliphatic peracids such as peracetic or persuccinic acid.  The reaction to form the epoxy-steroids may be carried out at a temperature of from -10 to +50 DEG  C. and/or in an organic solvent such as benzene, chloroform or ethyl acetate.  In the examples, 3b -acetoxy-5a -chloro - 20 - formyloxy - 17,20 - epoxypregnane and 3b ,17a  - dihydroxy - 20 - keto - D 5 - pregnene are prepared. Specification 805,585 also is referred to.
Patent GB-422294-A (GB)
Title: Improvements in or relating to coal and like cutting machines
IPC: E21C35/193
Filed: 1933-10-09
Abstract: 422,294. Coal &c. cutting machines- HOPKINSON, A., Delta Works, Audenshaw, Lancashire. Oct. 9, 1933, No. 27757. [Class 68 (i)] In a pick holder for a coal &c. cutting machine comprising a diametrally-slotted cutter carrier 6 rotatable in a circumferentially-slotted housing 1 to a position in which the cutter 5 can be inserted in or retracted from the carrier, a bolster 13 is interposed in the circumferential slot between the carrier and the housing and has one face shaped to fit the surface of the carrier, the cutter in its operative position abutting against the bolster. The housing is integral with the side links 2 of the chain and is formed by bending a blank around the carrier 6 and bolster. The carrier has enlarged central and end portions 61<1>, 6<1>, the end portions 6<1> having notches 7 adapted for engagement with fins 11 on adjacent links to hold the carrier in adjusted position. The cutter preferably has projections 10<1> engaging corresponding recesses 9 formed at each end of the diametrical slot. Specification 404,214 is referred to.
Patent GB-1117782-A (GB)
Title: Nopinic acid derivatives, their preparation and pharmaceutical compositions containing them
Inventor: GILLO LEON
IPC: A61K31/015
Filed: 1964-07-06
Abstract: Novel compounds of the formulae <FORM:1117782/C2/1> <FORM:1117782/C2/2> (wherein X1 is an ammonium cation, a C1- 4 alkyl radical or the group -(CH2)n-NRR1 in which n is 1, 2 or 3 and R and R1 are each hydrogen or C1- 4 alkyl) and acid-addition salts of the amino-esters are prepared (1) by reaction of nopinic acid with ammonia to give ammonium nopinate; (2) by esterification of nopinic acid or transesterification of its alkyl esters with alkanols or aminoalkanols to give corresponding esters of nopinic acid, or by reaction of alkali metal salts of nopinic acid with alkyl halides or aminoalkyl halides; and (3) by mixing nopinic acid and amino-alkanols in suitable solvents to give salts of nopinic acid with the amino-alkanols.  Examples are given.  The novel nopinic acid derivatives may be made up into pharmaceutical compositions for the prevention and control of ulcers and/or of pain due to ulcers.  The compositions may be for peroral, topical or parentaral use.
Patent GB-483290-A (GB)
Title: Improvements in or relating to method of and apparatus for welding metal strips
IPC: B23K11/00
Filed: 1936-10-14
Abstract: 483,290. Uniting by fusion. KINKEAD, R. E. Oct. 14, 1936, No. 27899. Convention date, Oct. 29, 1935. [Class 83 (iv)] Metal strips s, s<1> to be butt-welded together at the ends are held by clamps 17a, 18a against a backing bar 16a and partly welded at 22a from one side and completed at 30 from the other side. The apparatus shown in Fig. 4 comprises an uncoiler 35, strip flattener 36, aligning means 37, clamps 38 and a combined shear and fusion welder 40 which crops the strip ends and welds them partly through from one side ; the strip is then turned over by a roller 43, the other side of the weld completed by a welder 47 and the strip wound on a coiler 49. Modified apparatus, Fig. 5, comprises guide rolls 58-61 for the strips s, s<1> carried by a frame 64 resting on rollers 66 and adapted to be turned over by gears 67, 68 ; after welding the strips from one side the welder 57 is traversed on guides away from the frame 64, the latter then reversed and the welder is then traversed back again to complete the weld. In another modification, Fig. 8, the welder is mounted on a stand 84 and after making the part weld at 90 is moved aside ; the frame 84 is then lowered by the screw 85, the welder moved in again and the weld completed at 92. In a further modification, Fig. 10, the strip passes over guide rolls 104, 105, 109 and 111 and two separate welders 103, 108 are provided. In the apparatus shown in Fig. 11 the positions of the coiler 121 and uncoiler 120 are interchanged for making the two part welds. The Specification as open to inspection under Sect. 91 comprises also the welding together of strips on a line oblique to the length of the strips as shown at W, Fig. 13 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-1009608-A (GB)
Title: Improvements in safety relays
IPC: B61L7/06
Filed: 1962-07-20
Abstract: 1,009,608. Converting. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. July 20, 1962 [July 21, 1961; Dec. 13, 1961], No. 27996/62. Heading H2F. [Also in Division B7] A circuit for converting a D.C. supply to an A.C. square waveform signal comprises a capacitor 5 which is charged from D.C. source S2 via resistor R 2 , a voltage stabilizing circuit comprising resistor R 1  and Zener diode Z, an alternating relay 3 which picks up and opens the charging circuit when the charge on capacitor 5 reaches a set level, and which releases when the capacitor discharge current has dropped to a predetermined low level and a second relay 4 which is picked up and released via a contact of relay 3 and connects the D.C. input supply to output terminals a 1 , b 1  via a set of polarity changeover contacts. In a second arrangement, Fig. 4 (not shown) in which the input is an A.C. supply, a pair of oppositely poled semiconductor triodes are connected in parallel and triggered alternately from a transistor pilot oscillator circuit. The triodes are connected in one of the leads joining the input and output terminals and a smoothing capacitor is connected across the output terminals. Specification 821,373 is referred to.
Patent GB-647988-A (GB)
Title: Improvements in or relating to a roll stand
IPC: B21B13/00
Filed: 1945-12-03
Abstract: 647,988. Die-rolling. CRUCIBLE STEEL CO. OF AMERICA. Dec. 3, 1945, No. 28006/48. Convention date, Jan. 15, 1945. Divided out of 647,942. [Class 83 (iv)] A roll stand comprises a frame, a pair of rolls journalled in bearing blocks slidably mounted in the frame, means spacing the bearing blocks apart, including a support interposed therebetween. and secured to the frame and the blocks for urging the blocks towards the fixed support and so tensioning the frame in opposite directions from the support. A mill stand comprises side frames 116, 118. Fig. 4, supported on pedestals 120 and rigidly secured together by upper and lower horizontal tie-rods 142, 144. One of the pedestals carries a bearing 124 for the main drive shaft 66 and the side frame 118 carries bearings for a vertical shaft 132 coupled to the main shaft by bevel gears 134, 136 and to horizontal countershafts 162 and 222 by bevel gears 158, 160 and 218, 220 respectively. The side frames are formed with guideways for upper and lower bearing blocks carried by bridge members 212 and 152. These bearing blocks carry the countershafts 222 and 162 and also the upper and lower roll shafts 228 and 168 which are driven from the countershafts by helical gears 224, 226 and 164, 166 respectively. Gears 164 and 224 are axially adjustable on the countershafts in order to adjust the angular relationship between the die rolls. The die rolls 174 and 234 are shown with V-shaped grooves but actually are provided with contured depressions of various shapes and depths depending on the product to be made. The lower bridge member 152 is vertically adjustable by means of two screws 186, 188 rotated from a shaft 198 coupled by bevel gears to a manually operable shaft 204. A single handoperated screw 246 carried by the side frame 116 acts through a breaker block on the upper bridge 212 and a parallel movement of the bridge under the action of the single screw is ensured by a linkage comprising a wide rigid horizontal link 254 pivoted to a shaft 256 anchored between the side frames of the machine and to a rigid substantially vertical link 266 which is in turn pivoted on a horizontal shaft 272 anchored in the bridge member 212. Keys  274 and 276 are bolted within shallow grooves in the frame and extend transverselv across the opposed faces of the guideways, bars 284 and 286 are rigidly secured to the bearing blocks 148, 150 and wedge blocks 280 and 282 are movable between the keys and bars by means of hexagonal rods 288 and 290 each having left-hand and right-hand screw threads at its opposite ends. The frame may thus be prestressed by adjusting the wedges or by keeping the wedges fixed and adjusting the upper and/or lower screwdown means so as to force the bearing blocks against the wedges.
Patent GB-1323611-A (GB)
Title: Electrophotography
IPC: G03G5/147
Filed: 1970-06-10
Abstract: 1323611 Photo-conductive alloys vapour depositing photo-conductors CANON K K 10 June 1970 [10 June 1969 24 Nov 1969 (2)] 28176/70 Heading C7A and C7F [Also in Division H1] The Specification discloses specific alloys of Se + Te containing 5-10 wt per cent Te and specific alloys of Te + As + Si + Ge containing 60, 24, 5 and 11 or 62, 25À8, 3À6 and 8À6 wt per cent respectively. A three-layer structure is formed vapour depositing at 600‹ C an amorphous layer of Te + As + Si + Ge alloy on to an aluminium plate held at 60‹ C in a vacuum of 10<SP>-4</SP> to 10<SP>-5</SP> mm Hg, followed by vapour deposition at 250‹ C of a layer of Se + Te alloy with the plate held at 65‹C and then vapour deposition at 250‹ C with Se with the plate held at 68‹ C. The alloys we made by grinding the elements together, heating in a quartz ampoule at low pressure and quenching in water.
Patent GB-457228-A (GB)
Title: Improvements in and relating to apparatus for producing bricks closed on five sides
IPC: B28B11/16
Filed: 1935-10-12
Abstract: 457,228. Conveyers. KOHN, P., 122, Lehmstatte, Br³nn, Czecho Slovakia. Oct. 12, 1935, No. 28239. [Class 78 (i)] [See also Group V] In apparatus for producing hollow bricks in which a rod of clay from an extrusion press 1, Fig. 1, is cut into pieces on a cutting table on which it passes over rollers 2 and a conveyer band 5 and from which the pieces are transferred to a boring machine and then to a discharge conveyer 37, 38, the transfers are effected by a lifting device consisting of a carriage 20, Fig. 4, running on wheels 18 on a pair of bars 14 and having rails 23 which simultaneously remove a bored-out piece to the discharge conveyer 37, 38 and take a fresh piece from the cutting mechanism to the boring machine. The carriage 20 is reciprocated by connection by a rod 21 to a crank 22 secured to a shaft 8 which is rotated under control of the cutting mechanism. A lifting motion is simultaneously imparted to the carriage 20 and rails 23 by the rocking against action of a spring 171 of a pivoted frame 13, which carries the bars 14, by the engagement with a roller 15 thereon of an eccentric 17 mounted on shaft 8.
Patent GB-926523-A (GB)
Title: Spark ignition apparatus for internal combustion engines
Inventor: JUKES NORMAN ALFRED
IPC: F02P7/067
Filed: 1960-08-16
Abstract: 926,523. Ignition magnetos. JOSEPH LUCAS (INDUSTRIES) Ltd. July 24, 1961 [Aug. 16, 1960 ; Dec. 6, 1960], Nos. 28323/60 and 41898/60. Class 35. [Also in Group XXVII] The generator illustrated in Figs. 1 to 4, is suitable for use with a four-cylinder engine, and includes a stator 11 (Figs. 3 and 4), incorporating two permanent magnets 12 and three polepieces 13, 14, 15, separated by a resin moulding 16. Embedded within the moulding 16 are a pair of pickup coils 17, 18 which surround the poles 13, 15 respectively. The stator 11 is fixed to the body of the engine, whilst the rotor 19 is fixed to the engine crank-shaft for rotation therewith. The rotor 19 is of generally annular form, but at diametrically opposite positions has secured thereto a pair of magnetic plates 20 which rotate between the extremities of the poles 13, 14, as shown in Fig. 4. The plates 20 when considered in the direction of rotation of the rotor 19 vary from a minimum radial width to a maximum radial width at the points 21. It will be appreciated that the shape of the pulses generated in the coil 17 will depend on the speed of rotation of the rotor and on the radial thickness of the portion of a plate 20 between the poles 13, 14. Thus, during each half-revolution of the crank-shaft the voltage of the pulse developed in the coil 17 will vary between limits determined by the speed of rotation and the shape of the plates 20, the plates 20 being shaped so that the pulses have a sloping or curved leading edge the steepness of which increases with increasing engine speed. The generator produces a secondary output in the coil 18 by virtue of a pair of studs 22 passing between the poles 14, 15. The studs are conveniently of square cross-section, but may be of any other cross-section such that the leading edge of each stud cuts the lines of force at right angles when passing between the poles 14, 15. The positioning of the studs 22 is such that a relatively large voltage will be developed in the coil 18 immediately before the maximum voltage is developed in the coil 17. In Figs. 6 and 7 the rotor 57 is formed from magnetic material, whilst the stator comprises a pair of plates 58, 59 of magnetic material interconnected by a magnet 60. The plates 58, 59 are slotted to provide a series of unequal limbs 61 on some or all of which unequal windings 62 are wound in series. In a further modification (not shown), the limbs 61 may project axially out of the plane of the plate 59. In this case the limbs 61 are the same length, but again carry unequal windings. In a further modification, the rotor may be driven by the engine through gearing Ignition systems are described (see Group XXVII).
Patent GB-729493-A (GB)
Title: Improvements in and relating to hydraulic turbines or pumps
Inventor: DERIAZ PAUL
IPC: F03B3/14
Filed: 1952-11-11
Abstract: 729,493. Hydraulic turbines; screw pumps. ENGLISH ELECTRIC CO., Ltd. Nov. 6, 1953 [Nov. 11, 1952], No. 28423/52. Classes 110 (1) and 110 (3). [Also in Group XXIX] In a hydraulic turbine or pump; of the feathering rotor-vane type in which'the vanes are adjusted by a servomotor in the runner and the two ends of the servomotor are connected by axial passages and radial bores 6, 7 in the runner shaft 3 with grooves 8, 9 in a spherically mounted bearing 10, the control valve 14 of the servomotor is arranged within or forms a structural unit with the casing of the bearing. In the case of a turbine the control valve is actuated by an annular cam 18 on a governoroperated control ring 19 for the guide vanes whereas for a pump the valve may alternatively be controlled by an operator. Movement, of the cam rocks a lever 15 to move a control rod 14a which is slidable in the valve 14, relative to a closure surface on a lever 20. Pressure. fluid is supplied at a port 14c and acts on the two lower lands of the valve, to produce a resultant upward thrust which is balanced by pressure fluid in a chamber above the upper land of the valve fed through a restriction 13a and communicating with an axial bore in the rod 14a. Thus, movement of the rod results in a variation of pressure above the upper land of the valve causing the latter to move, and in so doing to re-position the rod 14a relative to the lever 20 due to the lever 15 being pivotally mounted on a bracket 14b movable with the valve. The movement of the servomotor consequent upon displacement of the valve is transmitted by'an axially displaceable rod 5 carrying a ring 22 to the lever 20 whereby the pressure above the upper land of the valve is varied to return the valve to the neutral position.
Patent GB-747096-A (GB)
Title: Steroid ketals
IPC: C07J75/00
Filed: 1952-11-12
Abstract: The invention comprises 3-hydroxypregnane-11,20-dione-20-ketals of the general formula <FORM:0747096/IV(a)/1> wherein R represents hydrogen or an alkyl radical containing from one to six carbon atoms and n is one or two, and the preparation thereof by mixing the required alkane-1,2-diol or alkane-1,3-diol and a 3-hydroxypregnane-11,20-dione in the presence of an acid substance which acts as a catalyst.  The ketal group may be derived from ethylene glycol, propane-1,2- or 1,3-diol, or butane-, pentane-, 3 - methyl-pentane-, or octane-1,2-diol, or hexane-1,3-diol.  The acidic substance is preferably a mineral or organic sulphonic acid, e.g. m- or p-toluene-sulphonic acid, or naphthalene-, benzene- or o-chlorobenzene-sulphonic acid, or hydrochloric or sulphuric acid. Other acid catalysts which may be used are boron trifluoride, aluminium trifluoride, ferric bromide and acidic synthetic resins. The reactants may be employed in the ratio of at least one mol. of diol per mol. of pregnane reactant, an excess of the diol reactant being preferred.  The preferred reaction temperature range is between about 20 DEG  and about 200 DEG  C., e.g. between about 20 DEG  and 150 DEG  C.  The reaction can be conducted in the presence of an inert organic solvent, e.g. benzene, toluene, xylene, nitrobenzene, dioxan, dinitrobenzene, ether or nitrotoluene, the preferred organic solvents being those which form an azeotrope with the water as it is formed in the reaction.  In the examples the following compounds are prepared: 3a  - hydroxypregnane - 11,20 - dione-20-ethylene glycol ketal and the corresponding 20-propane-11,21-diol, 20-butane-11,21-dio diol, 20-31-methylpentane-11,21-diol and 20-propane-11,31-diol ketals, and 3b -hydroxypregnane - 11,20 - dione - 20 - ethylene glycol ketal.  Specifications 738,611 and 747,097 are referred to.
Patent GB-691402-A (GB)
Title: Improvements in or relating to combing machines
IPC: D01G19/04
Filed: 1950-11-23
Abstract: 691,402. Arrangements for rollers in textile spinning &c. machines. FAIRCLOUGH, R., MILLER. N., CHADWICK, J. S., and BALSHAW, W. M. Nov. 21, 1951 [Nov. 23, 1950], No. 28603/50.. Class 120(ii) In a device for relieving the weight A acting on a detaching roller of a Heilmann or Nasmith type of combing machine, application of pressure on a foot-pedal E rocks a two-armed lever E<SP>1</SP>, E<SP>2</SP> pivoted on a bracket C so that the arm E<SP>2</SP> raises a bar B, connecting two chains as at A<SP>1</SP> by which the weight is attached to hooks bearing on the ends of the roller (not shown), thus lifting the weight.
Patent GB-887516-A (GB)
Title: Improvements relating to electronic image tubes
Inventor: ENNOS ANTHONY EDWARD
IPC: H01J29/39
Filed: 1957-09-11
Abstract: 887,516. Television pick-up tubes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 29, 1958 [Sept. 11, 1957], No. 28675/57. Class 39(1) In a television pick-up tube, the target comprises a signal plate 6, a photo-conductive or bombardment-induced conductive layer 5 and a carbon or metallic deposit 8, in the form of a flocculent dispersion of finely divided particles which forms a spongy layer full of small crevices and holes, and which has a low conductivity over its surface but a high conductivity in a direction normal thereto. This layer improves the electron-collecting properties of the screen, and may be of gold, zinc, cadmium, bismuth, iron aluminium, tin or carbon. A gold layer is preferred and may be formed by evaporating gold wire in an atmosphere of nitrogen at 0.25-1 mm Mg. pressure.
Patent GB-910290-A (GB)
Title: Machine for making sewing ribs for the insoles of footwear
IPC: A43B15/00
Filed: 1959-08-21
Abstract: 910,290. Sewing ribs for insoles. SHERBROOK, V. A. Aug. 21, 1959, No. 28721/59. Class 17 (2). [Also in Group VIII] In a machine for making plural folded sewing ribs, tape of canvas or some similar material with an adhesive on one side surface only, is supplied from a reel 10 and passes through a first fixture 14 where a narrow edge of the tape is folded over by a guide plate 16, this edge being subsequently pressed down by a pair of rollers 28, 30. The tape then passes to a second fixture 48 which comprises a pair of U-shaped guide members 52, 54 (Fig. 8) located substantially facing each other, and which again folds over the edge so as to produce a superimposed fold 72 and a reverse fold 74. The tape then passes through pressure rolls 76 and 78 producing a tape formed of four layers cemented at 80 and 82 but not at 84 (Fig. 12). The underside of layer 86 is coated with adhesive by which it can be cemented to an insole 92 and then when stitching is passed through the extending edge 90 and the insole, the thicker layer 88 of the tape is caused to pivot upwards as shown in Fig. 11 for use as a sewing rib. The peripheries of the rolls 28 and 30 are such as to produce a pre-creasing effect on the tape at 70 prior to its passing to the second fixture 48.
Patent GB-871794-A (GB)
Title: A method for preventing the transmission of vibrations in the different components of a machine
IPC: E01C19/28
Filed: 1958-09-09
Abstract: 871,794. Vibrating rollers. DOMINIGHETTI, C. Sept. 9, 1958 [Sept. 13, 1957], No. 28827/58. Class 6(1). [Also in Group XXXII] An air spring 2, (see Group XXXII), is positioned between an axle 1 and members 3 attached to a frame 4 of a vibrating road roller. To prevent axial movement of a roller 9 annular air springs 10 mounted on shafts 11 are in contact with each end of the roller. A motor may be connected to shafts 11 to drive the roller through springs 10.