baber/WOPTO huggingface dataset:
Patent GB-786960-A (GB)
Title: Polymeric amidoximes
Inventor: SCHOUTEDEN FERDINAND LEONARD
IPC: D06P3/70
Filed: 1954-09-24
Abstract: Polymeric materials such as starch, alginic acid, zein, gelatin and casein are cyanoethylated with acrylonitrile and then reacted with hydroxylamine or a derivative thereof, the reaction giving rise, at least initially, to the formation of amidoxine groups. Specifications 698,524, 700,172 and 715,194, [all in Group IV (a)], are referred to.ALSO:Polymeric materials containing nitrile groups are reacted with hydroxylamine or a derivative thereof, the reaction giving rise, at least initially, to the formation of amidoxime groups. Polymeric starting materials specified are polyacrylonitrile, polymethacrylonitrile, copolymers of acrylonitrile with vinyl acetate, vinyl chloride, styrene and methacrylic acid, a graft copolymer of acrylonitrile and polyvinyl pyrrolidone, polymers of vinylidene cyanide and the cyanoethylation products of polyvinyl alcohol, polyvinylamine, polyacrylamide, polymethacrylamide and polyethylene glycol.  The hydroxylamine may be used as the free base or in the form of a salt which is neutralized in the reaction medium, or it may be liberated from a substance such as ammonium hypochlorite.  The reaction may be carried out with the polymeric materials in the form of a solution, in dispersion or in swollen state, e.g. the material may be in fibre form.  After reaction with hydroxylamine the products may be further treated by hydrolysis or salt formation or by reaction with nitrous acid, aniline, an acylating agent, carbon disulphide, alkylene oxides, acetic acid, ethyl acetoacetate, or acrylonitrile; in examples of this type of reaction: (20) polyacrylonitrile which has been reacted with hydroxylamine is cyanoethylated with acrylonitrile and then further reacted with hydroxylamine; (21) polyacrylonitrile which has been reacted with hydroxylamine is subjected to alkaline hydrolysis; (22) a copolymer of acrylonitrile and vinyl chloride which has been reacted with hydroxylamine is treated with nitrous acid.  The products may be used in the manufacture of dyeable films and fibres and in treating textiles and paper.  In examples the preparation of the following polymers containing nitrile groups is described: (1) acrylonitrile is polymerized in solution in benzene in the presence of benzoyl peroxide; (8) vinyl acetate and acrylonitrile are bulk copolymerized in the presence of benzoyl peroxide; (14) polyvinyl alcohol is cyanoethylated with acrylonitrile; (15) polyethylene glycol is cyanoethylated with acrylonitrile; (16 and 17) "Viscose" (Registered Trade Mark) fibres are cyanoethylated with acrylonitrile. Specifications 698,524, 700,172 and 715,194 are referred to.
Patent GB-1183575-A (GB)
Title: Improvements in Ground Sweeping Vehicles
IPC: E01H1/05
Filed: 1966-06-21
Abstract: 1,183,575. Ground sweeping vehicles. JOHNSTON BROS. (ENG.) Ltd. and A. J. RUTHIE. 21 June, 1967 [21 June, 1966], No. 27741/66. Heading E1G. In a ground-sweeping suction or other vehicle the height of a power-driven cylindrical brush in a cowling 13 is controlled by one or more pneumatic rams 24, 25 supplied with air from the vehicle braking system. The brush may be driven hydraulically. The cowling 13 is tiltably suspended by drag arms 16, 17 and a Y frame 22 slidable in a saddle 20. The brush movements may be damped by restrictors in the rams or by auxiliary shock absorbers. The rams may be double acting but as described have their upper ends open to atmosphere and are supplied with air either (a) at full pressure or (b) at independently adjustable partial pressures, so that the brush is either (a) raised clear of the ground or (b) rests on the ground with part of its weight supported by the rams. A control circuit, Fig. 3 (not shown) includes a two-position raise/ lower valve (39), partial-pressure adjusting valves (50, 51), and a pressure-operated safety valve (34) giving priority to the brake-operating reservoir (33) over the brush-operating reservoir (37). Specification 938730 is referred to.
Patent GB-511236-A (GB)
Title: Improvements in or relating to extractor head for ingot strippers
IPC: C21D9/70
Filed: 1938-09-23
Abstract: 511,236. Extracting ingots. ALLIANCE MACHINE CO. Sept. 23, 1938, No. 27777. Convention date, Oct. 9, 1937. [Class 83 (i)] A device for extracting big-end-up ingots from moulds and which is attachable to a stripping crane normally used for big-end-down ingots comprises a body 2 secured to the ram 4 of the stripping crane by a cotter 10 and having a bracket 18 attached thereto by bolts, the bracket carrying feet 20 engageable with the top of the mould 21. A cross-head 24 is slidable on guide rods 25 secured to the body 2 and bracket 18 and carries extensions 43 adapted to engage the link tongs 5 of the stripping crane. An extension 28 of the cross-head has slidable thereon a yoke 29 provided with pivot pins 33 whose ends normally rest on the bracket 18 and which support ingot tongs 34 carrying removable hard metal grippers 35 secured by keys 36. Slippers 38 are pivoted at 39 to the upper ends of the tongs 34 and have T-slots slidable on inclined guides 42 on the cross-head 24. In operation, the device is attached to the stripping crane by the cotter 10 and is lowered until the feet 20 rest on the top of the mould 21. The link tongs are then engaged with the extensions 43 and raised, thus lifting the crosshead 24 which acts through the slippers 38 to rock the tongs 34 and cause the grippers 35 to bite into the sink head 45 of the ingot. When the grippers have penetrated fully the rocking movement of the tongs 34 ceases and further upward movement of the tongs 5 raises the yoke 29 and pivot pins 33 together with the crosshead, thus causing the tongs 34 to extract the ingot from the mould. Co-operating lugs 46, 47 limit the inward motion of the lower ends of the tongs 34.
Patent GB-710089-A (GB)
Title: Improvements in and relating to reinforcements for prestressed concrete and to meansfor use in stressing such reinforcements
IPC: E04C5/12
Filed: 1950-11-14
Abstract: 710,089. Rod joints. COFF, L. Nov. 14, 1951 [Nov. 14, 1950], No. 27798/50. Class 99 (1). [Also in Group X and XXV] A clamp for surface patterned reinforcements for prestressed concrete (see Group X) comprises a plurality of sections mating with the pattern of the reinforcement, and is adjustable longitudinally of the reinforcement and suitably shaped to serve as an abutment to hold the reinforcement in its tensioned state. Fig. 1 shows two identical rods 10a, 10b provided with longitudinal ribs 11<SP>1</SP>, 11" (not shown) and peripheral ribs 12<SP>1</SP>, 12" and joined by a clamp consisting of two symmetrical portions 13a, 13b, each with a semi-cylindrical channel 14 bearing a pattern of grooves 15<SP>1</SP>, 15", and 16 which mate with the ribs of the rods. The two portions 13a, 13b are joined together and forced into engagement with the rods by means of nuts 19', 19" and bolts 17<SP>1</SP>, 17<SP>11</SP> passing through holes 18', .  18<SP>11</SP> which may be elongated to allow for any relative displacement of the pattern halves 13a, 13b. The clamp shown in Fig. 4 comprising half shells 113a, 113b of tropezoidal longitudinal section is applied to the patterned rod 110, and wedge-shaped shoes 120a, 120b bear on the inclined sliding surfaces of the shells. The shoes 120a, 120b are held together by nuts and bolts 119, 117, and an anchor plate 122 is located between the shoes and the concrete 121 to be prestressed. The clamp may comprise more than two complementary parts.
Patent GB-792189-A (GB)
Title: Improvements in locks for doors
Inventor: ROBERTSON ROBERT
IPC: E05B65/32
Filed: 1956-09-12
Abstract: 792.189. Latches. HALLAM, SLEIGH & CHESTON, Ltd. Sept. 12, 1956, No. 27843/56. Class 44 A door lock comprises an angularly movable or pivoted latch element 4 disposed within a casing 1 or behind a cover plate 2 and adapted to be engaged by a striker 6 entering through an aperture in, or formed by the casing or cover plate, so that the latch is moved by the striker into a door-retaining position during the closing of the door, a spring-pressed wedge or abutment 7 disposed within the latch casing or behind the cover plate and means for retaining the latch element in a door locking position comprising a pivoted part or detent 14 engaging the latch element and adapted to be moved into a position to release the latter by. a slide 19. In the arrangement shown, the detent 14 forms part of a two armed pivoted lever 15, the other arm 17 of which constitutes a detent which is biased into engagement with a stud 18 on the slide 19 by a torsion spring 27. The slide, which passes through a slot in an edge wall 21 of the casing is formed with a part 19a for engagement by a push button (not shown) disposed adjacent or combined with an outside door handle. The lever 15 may be operated from inside the vehicle, to release the bolt 4, by a bell crank lever 22 pivoted about a pivot 23 on the casing and connected through an arm 25 to a handle (not shown) and through arm 26, an extension 26a of which lies below a nose 14c of the lever 15. The arm 26 also carries a lug 26b, which when the inside handle is turned in a direction opposite to that for opening the door, blocks the slide 19 to prevent operation thereof to release the latch. In the case of a driver's door, the lug 26b is prevented from blocking the slide by a screw 9. The striker 6 is carried by a plate 28 and relative lateral movement of the striker and latch bolt 4 and the engaged position thereof is limited by a pressed end portion 30 of the lock cover plate 2. A stud 31 engaging the slide 19 prevents lateral movement of the lever 15. Specification 680,069 is referred to.
Patent GB-187238-A (GB)
Title: Improvements in or relating to electric installations
IPC: H02P9/00
Filed: 1922-10-13
Abstract: 187,238. Etablissements H. Crochat. Oct. 14, 1921. [Convention date]. Void [Published under Sect. 91 of the Act]. Systems for continuous-current motors only.- The speed of the driving motors d is varied by varying in direction and magnitude the excitation of a generator e mounted upon the same shaft as the generator b. A clutch may be placed between the prime-mover a and the shaft of the generators b, e in order that the machines b, e may operate as a motor-generator.
Patent GB-429150-A (GB)
Title: Improvements relating to coke ovens
IPC: C10B27/00
Filed: 1934-09-28
Abstract: 429,150. Coke ovens. CLAYTON, C. E. EVERY-, 51, Chancery Lane, London.- (Didier-Werke Akt.-Ges. ; 90, Westfõlische Strasse, Wilmersdorf, Berlin) Sept. 28, 1934, No. 27894. [Class 55 (i)] A gas-collecting channel 1 in the top of a coke oven leads into the uptake pipe 2 which has no direct communication with the oven chamber, and extends over the whole length of the chamber into which it opens through controllable passages 4 of the same cross section. Dampers 5 are provided to control the gas outlets 4, and a damper 12, which may be provided between any of the charging openings, shuts off any desired portion of the gas-collecting channel, that lying farthest from the uptake pipe being shut off first, this being done towards the end of the carbonizing period. The gas collecting channel and the outlets 4 may extend across the width of the oven, and charging hoppers 11 passing through the channel may be used. These hoppers may be left in position as in Fig. 6, or may be removed, and covers inserted in the openings, in the oven top and in the horizontal partition 6. The gas passages 4 may be oblique as in Fig. 6 to avoid undue heating in the channel 1.
Patent GB-1369299-A (GB)
Title: Connection of webs
IPC: B65H19/18
Filed: 1972-06-15
Abstract: 1369299 Splicing webs BAYERISCHE BERG - HUTTEN - UND SALZWERKE AG 15 June 1972 [16 June 1971] 27922/72 Heading B8R  In a method of and apparatus for splicing an end portion of a new web from a new roll to an expiring moving web, the webs being fed through tension control means in web loops of varying lengths are provided, the end portion is firstly attached to a transfer element, the transfer element and expiring web are brought together, the element is accelerated to the speed of the expiring web, and the end portion secured to the expiring web and detached from the transfer element the new roll being accelerated up to speed only after splicing. The expiring web 6, 6<SP>1</SP>, 6<SP>11</SP> is unwound from a roll 4. The end portion 16<SP>1</SP> of the new web 16 is adhered to the periphery of a transfer roller 17 by means of an adhesive strip 18 coated on both sides, and moved towards the running web 6. When the roller 17 contacts the expiring web 6 it rotates up to the web feed speed and when the adhesive strip contacts the expiring web 6 it attaches the new web 16 thereto and detaches itself from the roller. During this time a loop 16<SP>11</SP> in the new web 16 is expanded and subsequent tension in the joined webs, whilst new web roll 5 is accelerating to web feed speed, is taken up by movement of a tension roller 11 connected to a spring 13 and weight 15. The expiring web is cut by a blade 19 after the joining operation. When the web 16 from roll 5 has nearly expired a new web is attached to roller 8 in a retracted position, the roller then being moved towards the web 16. After this joining operation blade 20 cuts the web 16. A pressure sensitive switch and time relay may control operation of the transfer rollers. Brakes on the web roll spindles tension the running webs. In alternative embodiments, the transfer roller is held stationary whilst the expiring web is moved towards it by a pneumatically or hydraulically driven guide roller, or both the expiring web and the transfer roller are moved. The web rolls may be held on a rotatable turret. When web tension returns to normal, the tension roller 11 is moved to its normal position by a motor. The cutting blade may have tri-angular teeth operated by a solenoid. The transfer roller, which may be driven so that contact with the running web is unnecessary, may be replaced by a belt, the tension spring 13 by a pneumatic or hydraulic motor, and the adhesive strip by an adhesive coating.
Patent GB-158699-A (GB)
Title: An improved method of and means for working vacuum automatic brake apparatus
IPC: B60T13/46
Filed: 1919-11-11
Abstract: 158,699. Vacuum Brake Go., Ltd., and Walker, W. P. Nov. 11, 1919. Fluid - pressure. - Vacuum brake apparatus for electric railway trains is provided with a double - beat valve actuated by a solenoid and adapted in one position to connect the vacuum chamber to the upper chamber of the brake cvlinder and in the other position to isolate the vacuum chamber and to connect the two chambers of the brake cylinders together. Each motor coach carries an exhauster electrically controlled by the driver's valve so as to be driven at moderate or full speed, when this valve is in the " running " or " brake off " positions respectively. In applying the brakes, air is admitted by the train-pipe to the lower chamber of the brake cylinder connected at d, and the solenoid b being de-energized the doublebeat valve a is in the position shown so that the upper chamber of the cylinder connected at c remains in communication with the vacuum chamber connected at e. To release the brakes rapidly, the driver's valve is moved to the "brakes off" position, thereby energizing the solenoid and so lifting the valve a to connect the two chambers of the brake cylinder through the passages c, d and to isolate the vacuum chamber.
Patent GB-1428103-A (GB)
Title: Apparatus for the manufacture of fibres
IPC: D01D5/00
Filed: 1973-06-12
Abstract: 1428103 Forming fibres from a melt IMPERIAL CHEMICAL INDUSTRIES Ltd 12 June 1973 [16 June 1972] 27982/73 Heading B5B An apparatus for the manufacture of fibres by stretching apart and cooling a molten thermoplastic material comprises webs 1, 2 running over supports 3 to 7 and 8 to 12 forming between them a gap into which the molten material 13 is fed, the width of the gap increasing from the feeding end in the direction of movement of the belts through the gap, the width of which at the feeding end is defined by a pair of supports 3, 8 adjustable in relation to each other, the increase in gap width being defined by at least one pair of supporting means, e.g. (4, 9); (5, 10); (6, 11); (7, 12) which are adjustable as to their distance relative to each other and are provided with at least a partly perforated support surface for the webs running across them. Preferably a means, e.g. 14, is provided to exhaust a gaseous medium through the perforated surfaces. In a further embodiment (Fig. 2, not shown) means are provided for blowing gaseous medium through the support surfaces. The suction and blowing means may be arranged to provide defined temperature and stretching conditions in the fibres being formed. As shown in Fig. 1 the suction and/or the blowing means may be arranged in the interior of the supporting, gap defining rollers. In Fig. 2 (not shown) the supporting means are collector shoes having appropriate suction or blowing means arranged in their interior, several shoes being distributed along the length of the web. The apparatus may be equipped so as to heat or cool the gaseous medium exhausted through the web. Means may also be provided for cooling at least part of the support surfaces defining the increasing width of the gap. The web utilized may be a net, or a perforated foil, made of a material adapted to release the thermoplastic material on sufficient cooling. In a particular embodiment (Fig. 3, not shown) the web is adapted to remain attached to the fibres produced and form part of the product.
Patent GB-519697-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P3/18
Filed: 1938-09-26
Abstract: 519,697. Control of A.C. motors. GENERAL ELECTRIC CO., Ltd., and COATES, H. J. Sept. 26, 1938, No. 27991. [Class 38 (iii)] Non-regenerative braking.-A three phase induction motor for a hoist is braked by D.C. energization when the controller is returned from a motoring position into the " off " position. Initially, reset contactor 45 is energized over segment 32 of the controller in its "off" position, and is maintained at contact 51. Movement of the controller into, for example, its " raise " position energizes coil 57 of "raise" contactor, over contact 46 of reset contactor 45 and segment 33. Thereupon an auxiliary make-before-break contact 49 transfers the circuit of coil 57 to segments 28. Release of a mechanical brake throws over switch 53, thereby de-energizing reset contactor 45 and preparing a circuit for coil 64 of the contactor controlling the D.C. energization of the motor, which circuit is still interrupted by interlock contacts 66 on the " raise " contactor, and by contacts 10 opened by a relay responsive, due to transformer coupling, to A.C. at the motor terminals. Further movement of the controller reduces a liquid resistance associated with the rotor of the motor. Return of the controller to the "off" position causes contacts 10, 66 to close and institute D.C. braking, and thereafter movement into either " raise " or " lower " positions causes reduction of the liquid resistance and consequential increased braking effect. Should the mechanical brake be released whilst the controller is " off " the coil 64 is energized and D.C. braking is instituted and interlock contact 59 in circuit with coil 57 is opened. Operation of bypass switch 63, by hand or automatically on failure of the D.C. supply, interrupts the circuit of coil 64 and allows the controller, by bypassing contacts 46 of reset contactor 45, to effect reverse current braking upon movement from one running position through " off " to the opposite running position.
Patent GB-772288-A (GB)
Title: Improvements in or relating to devices for the production of head coverings and the like
Inventor: OLIVER CEDRIC WILLIAM
IPC: A42B1/20
Filed: 1953-10-12
Abstract: 772,288. Headgear; pleating. OLIVER'S (RUBBER) Ltd., W. Jan. 7, 1955 [Oct. 12, 1953], No. 28018/53. Classes 63 and 141. Relates to a pleating device for making a water-proof collapsible bonnet comprising a thin rectangular sheet of material, e.g. polyethylene, provided with parallel pleats 1, Fig. 1, gathered at their ends 2 so that on pulling the ends, the bonnet collapses. into a narrow folded strip. According to the invention the pleating device comprises a pack of flat thin flexible strips 12, Fig. 6, secured at one end to a flat bar 7 and clamping means 13, 14, 15 for compressing the pack against the bar 7. A sheet 8 of the bonnet material is secured to the bar 7 by clips 9, 10 and then by means of a tension bar 17, the sheet 8 is passed to and fro over the device while successive strips 12 are laid thereon the strips and material being compressed by a loose bar 13 and clamps 14, 15. A jet of steam is directed along both edges of the " sandwich to permanently crease the material and provide a " crinkly " effect on the edges.
Patent GB-1298218-A (GB)
Title: NOVEL BEZ[e]INDENE AND PHENANTHRENE DERIVATIVES
Inventor: SAUCY G
IPC: C07D317/72
Filed: 1969-11-20
Abstract: 1298218 Steroid precursors F HOFFMANNLA ROCHE & CO AG 20 Nov 1969 [22 Nov 1968] 28139/71 Divided out of 1298214 Heading C2C The invention comprises d, I and dl compounds of Formulµ Ia and Ib wherein m is 1 or 2; R<SP>1</SP> is C 1-5  primary alkyl; R<SP>2</SP> and R<SP>3</SP> are identical lower alkyl groups or one of R<SP>2</SP> and R<SP>3</SP> is H and the other is lower alkyl; Z<SP>1</SP> is carbonyl, (lower alkylenedioxy)- methylene, di - (lower alkoxy) - methylene, phenylenedioxy-methylene or a group of formula where R<SP>5</SP> is H, lower alkyl, (lower alkoxy)- (lower alkyl), phenyl-(lower alkyl), tetrahydropyran-2-yl or lower acyl and R<SP>6</SP> is H or lower aliphatic or alicyclic hydrocarbyl; and Z<SP>2</SP> is di- (lower alkoxy) - methylene, phenylenedioxymethylene, a methylene group substituted by a divalent -ORO-, -ORS-, -SRS- or -ORNH- group (where R is lower alkylene), or is a group of Formula III defined above. The term " lower" means having up to 8 carbon atoms. Compounds Ia are prepared by hydrogenation of the corresponding 9,10-unsaturated compounds (steroid numbering) which are in turn prepared as described in Specification 1,298,212. Compounds Ib are prepared by ketalization, thioketalization, iminoketalization or reduction (optionally followed by etherification or esterification) of the carbonyl group(s) in compounds Ia.
Patent GB-1029119-A (GB)
Title: Apparatus for producing yarns of conjugate filaments
IPC: D01D5/32
Filed: 1964-07-08
Abstract: 1,029,119. Spinnerets. SOC. RHODIACETA. July 8, 1964 [July 19, 1963], No. 28197/64. Heading B5B. Apparatus for spinning yarns of conjugate filaments having two constituents comprises a spinneret having a single ring of orifices, and two coaxial tubes, the axes being substantially perpendicular to the face of the spinneret, whereby one of the constituents may be fed under pressure through the inner tube and the other constituent may be fed under pressure through an annular space between the two tubes. The internal diameter of the outer tube may be the same as the diameter of the useful internal part of the spinneret. The diameter of the ring of spinneret orifices need not be the same as the diameter of the inner tube, since the pressures exerted on the two constituents to be spun cause them to leave side-by-side through each orifice of the spinneret regardless of the distance between the orifices and the ends of the wall of the inner tube. In one embodiment, Fig. 1 (not shown), one constituent is fed through the interior 6 of tube 1 and the other constituent through the annular space 7 between tubes 1 and 2. The two constituents pass together through orifices 4 in spinneret 3. In a further embodiment, Fig. 2 (not shown), the end of the inner tube, instead of being open is provided with a cap 16 having orifices 17. The proportions of the constituents in each filament may be adjusted by controlling the relative rates of flow of the constituents. The apparatus may be used in the wet, dry, melt or semi-melt spinning of e.g. cellulose xanthate, cellulose esters, or addition or condensation polymers. Two-colour yarns and yarns having a helical crimp may be obtained.