baber/WOPTO huggingface dataset:
Patent GB-591627-A (GB)
Title: Improvements in and relating to synthetic rubber compositions
IPC: C08K3/06
Filed: 1944-03-29
Abstract: Synthetic rubber compositions comprise a copolymer of a mono-olefine with a diolefine, e.g. isobutylene copolymerized with butadiene or isoprene, p-quinone dioxime, a peroxide, sulphur and one or more compounds from the class consisting of thiurams and dithiocarbamates. The peroxide may be either inorganic such as lead peroxide or organic such as benzoyl peroxide or 3-4-dichlorobenzoyl peroxide.  Specified thiuram compounds are tetramethylthiuram mono-, di- and tetrasulphides; tetraethylthiuram sulphide; and dipentamethylenethiuram mono-, di- and tetrasulphides.  Specified dithiocarbamates are zinc, lead, selenium, tellurium, bis-benzal, dinitrophenyl and benzoyl ammonium dimethyl dithiocarbamates; zinc, lead, tellurium, sodium and diethyl ammonium diethyldithiocarbamates; zinc dibutyldithiocarbamate; zinc dibenzyldithiocarbamate, silver di - n - octyl dithiocarbamate, zinc, benzyl ammonium and piperidinium pentamethylenedithiocarbamates; diphenylammonium diphenyldithiocarbamate and the reaction product of methylene dipiperidine with carbon disulphide.  In addition, plasticisers, softeners, reinforcing agents and fillers, including stearic acid, gilders' whiting, carbon black, paraffin wax, clay, magnesium oxide and mineral lubricating oil may be added.  A typical mix comprising butyl rubber, p-quinone dioxime, lead dioxide, selenium diethyldithiocarbamate, magnesium oxide, sulphur, stearic acid and zinc oxide is cured by heating for 12 1/2 minutes at 300 DEG F.ALSO:Copolymers of a mono-olefine with a di-olefine such as butyl rubber are vulcanized in the presence of p. quinone dioxime, a peroxide, sulphur and one or more compounds from the class consisting of thiurams and dithiocarbamates.  The peroxide may be either inorganic such as lead peroxide, or organic such as benzoyl peroxide or 3-4-dichlorobenzoyl peroxide.  Specified thiuram compounds are tetramethylthiuram mono-, di-, and tetra-sulphide; tetraethylthiuram mono- and disulphide; tetra n-butylthiuram mono- and disulphide; and dipentamethylenethiuram mono-, di-, and tetrasulphide.  Specified dithiocarbamates are zinc, lead, selenium, tellurium, bis-benzal, dinitrophenyl, and benzyl ammonium dimethyl dithiocarbamates; zinc, lead, tellurium, sodium, and diethyl ammonium diethyldithiocarbamates; zinc dibutyldithiocarbamate; zinc dibenzyl dithiocarbamate; silver di n-octyl dithiocarbamate; zinc, benzyl ammonium, and piperidinium pentamethylenedithiocarbamate; diphenylammonium diphenyldithiocarbamate; and the reaction product of methylene dipiperidine with carbon disulphide.  In addition plasticizers, softeners, reinforcing agents and fillers including stearic acid, gilders' whiting, carbon black, paraffin wax, clay, magnesium oxide and mineral lubricating oil may be added.  A typical mix comprising butyl rubber 100 (parts by weight), p. quinone dioxime 1.25, lead dioxide 1.75, selenium diethyldithiocarbamate 3.75, magnesium oxide 8.75, sulphur 1.5, stearic acid 3, and zinc oxide 5 is cured by heating for 12 1/2 minutes at 300 DEG F.
Patent GB-1030261-A (GB)
Title: Improved microswitch
IPC: H01H37/50
Filed: 1964-02-12
Abstract: 1,030,261. Retractive switches; thermal switches. S. D. McKIE. Feb. 12, 1964 [Feb. 25, 1963; Aug. 8, 1963], No. 5906/64. Heading H2B. A microswitch (Fig. 1) comprises a stressed member 3 with an aperture 16 therein which member is mounted at a single point 14 to a pillar 2 on the base 1 and is further supported at two opposite points on its longitudinal edges by a support 7 which engages the member between the aperture 16 and a slot 15. The member 3 carries contacts 18, 19 and is normally concave downwards but a push-button 24 engages the member 3 adjacent where it is supported by the support 7 whereby the member can be flipped over to its other position. In a second embodiment three stressed members are stacked one above another and are angularly spaced thereby providing a three-pole microswitch. The operating member has collars thereon which individually engage the stressed members to operate them either simultaneously or sequentially according to the disposition of the collars. A microswitch similar to that shown in Fig. 1 can be modified to form a flasher, by providing a bow to apply the pressure to operate the microswitch and restraining the bow from continual engagement with the stressed blade by a wire whereby the switch is only operated when current through the wire causes it to expand sufficiently for the bow to apply pressure to the switch blade. In a further modification the position of the bow, and hence the temperature at which the switch operates, can be adjusted by a cam on a spindle. This cam has a position where it causes the bow to bear continually on the stressed member thereby giving an " off " position. In addition the cam engages a member, the end of which engages under the stressed member, so that, in the " off " position, the cam raises the switch blade, thus ensuring that the contacts open even if they should tend to stick.
Patent GB-1490465-A (GB)
Title: Process for the preparation of carboxylic acid alkenyl esters
IPC: B01J31/00
Filed: 1976-02-16
Abstract: 1490465 Alkenyl esters HOECHST AG 16 Feb 1976 [14 Feb 1975] 05957/76 Heading C2C In a process for the preparation of an alkenyl ester of a carboxylic acid by reacting an olefine with the carboxylic acid and oxygen in the vapour phase in the presence of a palladium carboxylate, the concentration of the acid in the feed gas is increased over a period of 1 to 60 hours, from an initial to final concentration in a ratio of from 0À1 to 0À8, and the temperature and pressure are such that there is no condensation of the acid on the catalyst. The final concentration is when the reaction is in continuous operation. Ethylene, propylene or isobutylene may be reacted with acids such as propionic or butyric acids. The palladium carboxylate may be supported on a conventional carrier and activators may be present. The initial concentration of the carboxylic acid in the feed may be from 10 to 80% of the final concentration and the increase may be by continuous or stepwise addition. Examples describe the preparation of vinyl, allyl and methallyl acetate, and allyl propionate and butyrate.
Patent GB-231448-A (GB)
Title: Arrangement for providing the front wheels of motor vehicles with brake drums
IPC: F16D65/10
Filed: 1925-03-04
Abstract: 231,448. Gallo, C. March 31, 1924, [Convention date]. Compression - spoke wheels; detaching from, and attaching to, permanent hubs. - A front wheel brake drum is formed by a flanged disc 7 having a central hole to clear the sleeve 3 of the permanent hub 2, holes 9 for the passage of the wheel-securing bolts 4, and smaller holes 10 to receive screws for attaching the drum to the flange of the hub 2.
Patent GB-1424313-A (GB)
Title: Apparatus for the plastic working of metal-
IPC: B21B31/26
Filed: 1974-02-11
Abstract: 1424313 Rolling mills; metal working presses METALFORM AB 11 Feb 1974 [12 Feb 1973] 06082/74 Headings B3M and B3H . A metal rolling mill or press tool has a base portion carrying a tool (or roll) and upstanding bars, a carriage slidable on the bars and carrying an upper tool (or roll), and separate means for moving the carriage along the bars and for clamping it in a desired position. In the case of a rolling mill, Fig. 3, a base portion 2 carries a roll 11 and upright bars 4. A carriage 13 is slidable on the bars by an hydraulic ram 14 and carries an upper roll 12. Hydraulically expandable sleeves 42 allow the carriage to be locked to the bars. One bearing chock 7 or 26 of each roll may be shifted axially to permit removal of the roll. The upper roll, Fig. 4, may be removed by sliding the chock 26 to the dotted position, having first undamped the roll ring 12 from its shaft 21. This is effected by releasing an hydraulically expandable sleeve 25, and drawing the ring magnetically on to a shoulder 35.  Vertical rolls 44, disposed in pairs on the upstream and downstream sides of the rolls 11 and 12 may be carried in frames 55 supported on the bars 4. An outer portion of each frame may be pivoted outwardly and downwardly to allow removal of the rolls. The rolls may be adjusted by spacers or eccentrics. A press tool, Fig. 6, has a lower table 101 carrying a lower tool and a carriage 109 carrying an upper tool. The carriage is movable by a low power hydraulic ram 107 and is lockable in position relative to the bars by hydraulically expandable sleeves 113. The carriage 109 incorporates a relatively short-stroke ram 116 which serves as a tool holder and can exert a comparatively large force.
Patent GB-556654-A (GB)
Title: Improvements relating to electromagnetic relays
IPC: H01H50/34
Filed: 1942-05-06
Abstract: 556,654. Electromagnetic switches. GRAHAM & CO., Ltd., A., and VAUGHAN, C. H. May 6, 1942, No. 6093. [Class 38 (v)] For setting the air-gap between the armature 12 and the poles of the electromagnet 11, the knife-edge fulcrum 14 for the armature is made adjustable. The knife-edge 14 may form part of a member which is U-shape in section for most of its length and which slides on the R.H. wing of a frame 1, being finally fixed in its adjusted position by screw 21.
Patent GB-677658-A (GB)
Title: Improvements relating to frequency-responsive electric relays
Inventor: HAIGH RICHARD WOOLLISCROFT
IPC: H01H51/32
Filed: 1950-03-11
Abstract: 677,658. Electromagnetic relays. LUCAS, Ltd., J. Feb. 22, 1951. [March 11, 1950] No. 6178/50. Class 38 (v). A frequency responsive relay has two windings i, j acting in opposition and respectively connected through rectifiers e, g to two differently tuned circuits a, band b<SP>1</SP>, a<SP>1</SP> arranged in series between A.C. supply terminals c. The core k of the relay is polarized, and when the frequency of the supply reaches a predetermined amount the predominance of the current in one winding i causes the switch h to be closed and at another frequency the predominance of the current in the other winding causes the switch to be re-opened under the action of a spring. Specification 623,970 is referred to.
Patent GB-858664-A (GB)
Title: Improvements in or relating to the production of phenthiazine derivatives
Filed: 1957-02-25
Abstract: Phenothiazine derivatives of the general formula I : <FORM:0858664/IV(b)/1> and salts thereof, wherein B represents a halogen atom, X is a straight or branched aliphatic chain and R1 and R2 are alkyl radicals, are prepared by hydrogenolysing a compound of the general formula II :  <FORM:0858664/IV(b)/2> wherein Z is an acid radical and Y is a group removable on hydrogenolysis, for example a benzyl or cinnamyl group. Preferably Z is a sulphonic acid radical, for example a p-toluenesulphonic, methanesulphonic or benzenesulphonic acid radical, or a halogen atom.  The hydrogenolysis may be carried out in any convenient manner; where Y is a benzyl group the process is advantageously carried out in the presence of a palladium-charcoal catalyst.  Starting materials of the general formula (II) are prepared by quaternising a compound of the general formula :  <FORM:0858664/IV(b)/3> with the appropriate tertiary amine.  In an example, 3-chloro-10-(31-dimethylaminopropyl)-phenthiazine is obtained by hydrogenating [31 - (3 - chloro -phenthiazinyl-10) -propyl]-benzyl-di-methylammonium-methanesulphonate over a palladium-charcoal catalyst in 5% acetic acid.  [31-(3-Chloro - phenthiazinyl - 10) - propyl] - benzyl-dimethylammonium-methanesulphonate is prepared by reacting 3-chloro-10-(3-methane-sulphonyloxypropyl)-phenthiazine with dimethyl benzylamine in acetone.  Reference has been directed by the Comptroller to Specifications 716,206, 716,207, 731,966 and 741,618.
Patent GB-316569-A (GB)
Title: Apparatus for setting the course in vessels, in particular flying machine
IPC: G01C21/22
Filed: 1929-02-26
Abstract: 316,569. Lauritsen, O. B. July 31, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Magnetic compasses.-Apparatus particularly for use on aircraft for finding the course to be followed to pass over a given point comprises means for optically projecting an image of the compass card on to a screen in juxtaposition to a chart. The compass card a is illuminated from below by a lamp b and mirror c and an image of the graduations is formed by a mirror d and lens e on an annular ground glass screen f which surrounds the fixed chart, Fig. 2.. Concentric with the screen f is a rotatable ring h carrying arms m mounted on diametrically-opposite pivots k. These pivots are connected by a wire n and the outer ends of the arms are connected by wires p parallel to the wire n. By rotating the ring h and turning the arms m about their pivots, one of the wires can be made to lie along the line on the chart corresponding to the course to be followed. The course is then given by the angular setting of the ring h relatively to the screen f.
Patent GB-565519-A (GB)
Title: Shock-absorbing mountings for electrical apparatus
IPC: H01R33/975
Filed: 1943-04-21
Abstract: 565,519. Telephone transmission systems. WESTERN ELECTRIC CO., Inc. April 21, 1943, No. 6389. Convention date, April 21, 1942. [Class 40 (iv)] [Also in Group XL] An electrical device 13, such as an electron discharge device forming part of a repeater, is mounted resiliently within a cylindrical casing 10, which may form part of an underwater cable, by means of hollow spacer members 21 which make a sliding fit within the casing. Rubber collars 16 are interposed between the end caps 14 of the device and the spacers 21, which have a groove 24 and flange 22 interlocking with a corresponding flange and groove on collars 16. Conducting tapes 29 connecting the leads from the device to other parts of the circuit pass through longitudinal slots 26 in the spacers. The spacers are fixed to the cylinder 10 by radial pins (not shown). The cylinder 10 is a transparent plastic, for example, the methylmethacrylate composition " Lucite."
Patent GB-540330-A (GB)
Title: Method of manufacturing composite lead powder for the electrodes of storage batteries
IPC: H01M4/56
Filed: 1940-04-09
Abstract: 540,330. Lead oxide. ISAKI, S. April 9, 1940, No. 6400. [Class 1 (iii)] [Also in Group XXXVI] Composite lead powder for electrodes is made by dropping molten lead into water, leaving the granulated lead in a drying chamber for several days, sprinkling it with water repeatedly to form oxidized films, and finally pulverizing it. The resulting product comprises a mixture of lead, lead sub-oxide, lead hydroxide, and white lead oxide.
Patent GB-1425096-A (GB)
IPC: A47K10/28
Filed: 1973-02-09
Abstract: 1425096 Band towel dispenser SEBRAN 9 Feb 1973 [22 June 1972] 6462/73 Heading B8M  A band towel dispenser in which a predetermined length of towel can be unwound and the same length of towel rewound by a single pull on the towel band comprises a pair of side walls, e.g. 11, supporting a cradle 29 for clean towel, a measuring roller 42, a pressing roller 44 mounted in guides 16 and adapted to press the towel against the roller 42 when the towel is pulled, a recovery roller 46 for used towel, and a driving roller 43 for frictionally engaging the last turn of towel on the roller 46 for winding the towel thereon. The rollers 42 and 43 are connected by transmission means including a blocking device controlled by a timing device to determine said predetermined length. The roller 46 is supported on pivoted arms 19 urged upwardly by springs 25 and as the amount of used towel on the roller 46 increases the arms 19 lower against the action of the springs so that the used towel roll partially occupies the space left free by the roll 30 of clean towel. The dispenser may include a pivoted flap 49 to prevent drips of water from the used towel roll falling on to the clean roll. Guides 12 may be provided for the used towel and are mounted on the side walls 11 which are pivoted to a rear wall 1 of the dispenser housing at 6 so that the walls 11, and hence the rollers carried thereby can be pivoted forwardly to facilitate insertion of a new towel band. When the towel band is all used up the ends of the roller 46 engage abutments 14 on the side walls 11 and thus are lifted from sockets 21 in the arms 19. The blocking and timing device, Fig. 6, includes pinions 54, 55 fixed to the shafts 39, 40 of the measuring roller 42 and the driving roller 43 respectively. A chain 61 passes round these pinions and also a further pinion on the shaft 57 of a cam 56. When the towel is pulled the chain moves in the direction of arrows f4, f5, f6, until a portion 58 of the cam 56 engages one end 62 of an escapement lever 59 to cause it to pivot in the direction f7. This causes the other end 63 of the lever to block further rotation of the cam and also urges together suction cups 75, 76 against the action of a spring 67. After a certain time the cups 75, 76 part to allow pivoting of the lever 59 back to the position shown in which a further length of towel may be dispensed.
Patent GB-1017601-A (GB)
Title: O-(ª‰-hydroxyethyl)-hydroxylamine and derivatives thereof
Inventor: NICHOLAUS BRUNO JOHN ROBERT
IPC: C07C275/64
Filed: 1961-02-22
Abstract: The invention comprises compounds of the general formula RO(CH2)2ONR1R11 (wherein R is a hydrogen atom or an alkanoyl, aroyl, aralkanoyl, aralkenoyl, (diary)alkanoyl, carbamyl or phenylcarbamyl group, R1 is a hydrogen atom or an alkyl, carbethoxy, alkanoyl, aroyl, aralkanoyl, aralkenoyl, (diaryl)alkanoyl, carbamyl or phenylcarbamyl group and R11 is a hydrogen atom or an alkyl group, provided that (i) when R1 is other than an alkyl group R11 is always a hydrogen atom, (ii) when R1 is an alkyl group R11 is also an alkyl group, (iii) when R and R1 are both acyl groups they are identical and (iv) when R1 and R11 are both hydrogen atoms R is also a hydrogen atom) and non-toxic acid addition and quarternary ammonium salts of the compounds in which R1 and R11 are alkyl groups, and their preparation by reducing ethyl carbethoxyaminoxyacetate with lithium aluminium hydride, optionally followed by introduction of R, R1, R11 groups, the carbethoxy group being removed if necessary, and (if required) salt formation in appropriate cases. The preparation of the starting material is described.
Patent GB-1380922-A (GB)
Title: Machines for granulating metal
IPC: B23D31/00
Filed: 1971-03-11
Abstract: 1380922 Comminuting apparatus A D KENNEY 13 April 1972 [11 March 1971] 6544/71 Heading B2A Comminuting apparatus particularly for comminuting metals comprises an outer casing 10 incorporating a comminuting chamber 17, one or more fixed blades 19, 20 located in the chamber 17, a rotor 16 journalled in bearings 14 in the casing and comprising a plurality of cutting blades 24 coacting with the fixed blade or blades, an inlet 25 in the casing for material to be comminuted, and an outlet 26 for comminuted metal granules, the outlet including a perforate screen 28 which is adjustably located by means of rods 30 and resiliently mounted, e.g. by springs 3.1. A disc or plate 34 is mounted on each end of the rotor shaft 15 so as to be a running clearance fit with the granulating chamber internal wall 17. The rotor 16 is removable by detaching an upper part 11 of the casing from a lower part 12. The blades 19, 20 are adjustable by means of screwthreaded rods.
Patent GB-936504-A (GB)
Title: Improvements in compressor intakes for gas turbine engines
Inventor: BEALE RICHARD DERBY
IPC: F01D25/16
Filed: 1961-02-22
Abstract: 936,504. Gas turbine engine air intakes; axial-flow compressors. ROLLS-ROYCE Ltd. Feb. 16, 1962 [Feb. 22, 1961], No. 6574/61. Classes 110 (1) and 110 (3). A gas turbine plant compressor comprising a housing enclosing a compressor bearing, supported by a plurality of struts disposed upstream of the compressor and extending tangentially of the housing, has a plurality of inlet guide vanes disposed between the struts and the compressor, the axis of each of the inlet guide vanes extending parallel to the axis of a respective one of the struts. The compressor 12 is mounted on a shaft 16 journalled within a bearing 17 supported from the engine casing 10 by hollow aerofoil section struts 18 extending across the air intake 11. Rotatable inlet guide vanes 20 are mounted at 21, 22 with axes parallel to the struts 18, the pivot 21 of one or -more of the vanes 20 being connected to a ram 25. The pivot 22 is attached to a forked member 26 having a pin 27 which is slidably mounted in a part-spherical member 30 located in a vane operating ring 31 journalled within the casing 23 and connected to the remaining vanes 20 by further forked members 26. Additional inlet guide vanes may be located intermediate the guide vanes 20.
Patent GB-816758-A (GB)
Title: A heat generating and retaining cover adapted to be used in the open end of an ingot mold or of a hot top used with said mold and in which molten metal is cast
IPC: C07D211/22
Filed: 1957-03-15
Abstract: 816,758. Casting processes. FERRO ENGINEERING CO. March 15, 1957 [May 2, 1956], No. 8584/57. Class 83 (1). A cover for use on the exposed molten surface of a casting or ingot consists of a box 1 of heatdestructible material, e.g. cardboard, and containing a layer 3 of exothermic material, a non- collapsable partition plate 10, e.g. of steel, or ceramic, above the said exothermic material, and a layer 5 of heat-insulating material, e.g. asbestos, insulating grog, above said plate. In use the box 1 burns away, the exothermic material 3 rides the lowering level of the melt and the plate 10 supports the insulating layer to minimize heat losses through the open end of the hot tap 9.
Patent GB-123647-A (GB)
Title: Improvements in Valve Caps for Internal Combustion Engines.
Inventor: WILLIAMS LLEWELLYN WYNN
IPC: F02M63/00
Filed: 1918-04-19
Abstract: 123,647. Williams, L. W., and Ainsley, R. April 19, 1918. Valve chests. - The flange a of the valve chest cover has dovetailed notches b which receive similarly shaped teeth e on a wrench d to avoid slipping. The head of the wrench may be annular or it may carry pins k which engage the inner face of the flange on the cover and thus avoid lateral movement.
Patent GB-1501784-A (GB)
Title: Crushers
IPC: B02C7/00
Filed: 1976-02-19
Abstract: 1501784 Disc mills DSO "CHERNA METALURGIA" 19 Feb 1976 [26 Feb 1975] 06673/76 Heading B2A A mill comprises a disc 4 rotatable above a vertical axis, a conical or frusto-conical member 6 spaced from the disc surface and rotatable about a second inclined axis, means 7 to feed material to be crushed on to the surface of the disc, means to remove crushed material from the disc, and means to rotate the disc 4 about the vertical axis. Material is removed from the disc by a rake or plough 5 which is adjustably mounted. A bearing box 8 which is secured to the mill housing 10 permits the member 6 to be moved axially relative to the disc 4 and thus permits variation of the spacing of the two members. The conical member 6 may be independently driven and a cleaning rake may be provided on the opposite side of the disc 4 to the side facing the conical member.
Patent GB-412348-A (GB)
Title: Improvements in and relating to rear reflectors for use upon pedal bicycles
IPC: B62M3/12
Filed: 1933-03-06
Abstract: 412,348. Reflectors. NEWTON, M., 15, Abbotsford Road, Hull Road, York. March 6, 1933, No. 6724. [Class 97 (i).] A rear reflector for a bicycle is adapted to be secured to the underside of a pedal, The reflector 1 is mounted in a recess in a rubber &c. block 2 having along its upper surface a ridge 5, formed with a semicylindrical trough to receive the central rod 6 of the pedal. A stirrup 7 passes over the rod 6 and through apertures in the block, and is secured by sleeve nuts 8.