baber/WOPTO huggingface dataset:
Patent GB-862250-A (GB)
Title: Improvements in or relating to thiolcarbamates
Inventor: TILLES HARRY
IPC: A01N47/10
Filed: 1959-09-07
Abstract: The invention comprises thiolcarbamates of the formula X-S-CO-NR3R4 wherein X is an R1-S-R2-, R1-O-R2-, cyanoalkyl, bromoalkyl or cycloalkyl radical, R1 is a C1-6 alkyl radical, R2 is a C1-6 alkylene radical, provided that at least one of the radicals R1 and R2 has at least two carbon atoms, and R3 and R4 individually are alkyl radicals, substituted alkyl radicals, unsaturated aliphatic radicals (e.g. allyl and chloro or alkyl substituted allyl radicals), or cycloaliphatic radicals, or together comprise a linear hydrocarbon radical (e.g. -CH(CH3)CH2CH2CH2CH2-) in which the terminal carbon atoms are bonded to the nitrogen atom so as to form a heterocyclic ring.  When X is a cycloalkyl group the compounds are prepared by reacting a cycloalkyl chlorothiolformate with an amine HNR3R4.  The remaining compounds are prepared by reacting together carbonyl sulphide, an amine HNR3R4 and an X-bromide or X-chloride.ALSO:A phytocidal composition comprises a thiolcarbamate of the formula X-S-CO-NR3R4, wherein X is an R1-S-R2, R1-O-R2-, cyanoalkyl, bromoalkyl or cycloalkyl radical, R1 is a C1-6 alkyl radical, R2 is a C1-6 alkylene radical, provided that at least one of the radicals R1 and R2 has at least two carbon atoms, and R3 and R4 individually are alkyl radicals, substituted alkyl radicals, unsaturated aliphatic radicals (e.g. allyl and chloro or alkyl substituted allyl radicals), or cycloaliphatic radicals, or together comprise a linear hydrocarbon radical in which the terminal carbon atoms are bonded to the nitrogen atom so as to form a heterocyclic ring, together with a solid carrier or liquid diluent and/or a surface-active agent.  The composition may be in the form of a dust, spray, drench, emulsifiable concentrate or wettable powder.
Patent GB-856326-A (GB)
Title: Process for drying olefin polymers
IPC: B29B13/06
Filed: 1957-09-30
Abstract: A process for drying solid aliphatic olefin polymers which have been prepared in the presence of a liquid solvent and which polymers have been separated in the solid state from the major portion of said solvent, comprising drying said polymer by evaporation at a temperature below the softening temperature of said polymer to 95-98% solids, and heating the thus partially dried polymer to at least the softening temperature thereof but below the temperature at which decomposition of said polymer takes place in an extruder-dryer so as to reduce the volatile matter associated with said polymer to not more than 0,05% and recovering a substantially dry polymer from said extruder-dryer. The olefin polymer may be produced by the low-pressure process, e.g. using a supported chromium oxide catalyst, and the drying is applicable to polymers mixed with both hydrocarbon polymerization solvent and water such as are obtained after initial separation from the polymerization mixture, e.g by steam stripping. The polymer may be derived from a 1-olefin such as ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene or alkyl substituted derivatives of these.  The drying below the softening temperature may be carried out using an apparatus such as an apron drier or steam tube.  A continuous polymer recovery system is described.  Specifications 790,195 and 804,641 are referred to.
Patent GB-1048278-A (GB)
Title: Vacuum dielectric variable capacitor
Filed: 1963-08-01
Abstract: 1,048,278. Capacitors. STANDARD TELEPHONES & CABLES Ltd. (International Telephone & Telegraph Corporation). Aug. 1, 1963, No. 30560/63. Heading H1M. Vacuum dielectric capacitor (Fig. 1) comprises a ceramic cylinder 10 metallized at both ends and attached to a pair of rings 11 having backing rings 12 attached to the flanges thereof. Rings 11 are attached to end walls 13, 14 having integral annular mounting ribs 15, 16. A fixed electrode welded to the inside of wall 13 comprises plural concentric spaced metallic rings 17 formed with interfitting re-entrant flanges 18. Wall 14 carries an axial drilled sleeve 19 in a central aperture, carrying a slidable hollow stem 20 whose inner end bears a boss to which a plate 22 is fitted. The plate carries a moving electrode 23 comprising concentric spaced metallic rings similar to 17 and intermeshing therewith, and a bearing shaft 25 carried axially by the centre of plate 22 slides in annular bearing 26 carried by the innermost ring of the fixed electrode to centre the moving electrode relative to the fixed electrode. An evacuated bellows 27 extends between ring 28 attached to plate 22 and ring 30 attached to flange 31 integral with wall 14, and a cap 32 sealed by 0-ring 37 to annular rib 16 rotatably receives screw 33 in a ball race 34 fitted in a central recessed opening 35, and the screw engages a threaded sleeve 38 also threaded into the bore of stem 20 so that rotation of drive 36 slidably adjusts the stem and the movable electrode to vary the capacitance. Sleeve 38 is flanged at 40 to engage the outer end of sleeve 19 as a stop, and the sleeve is screwably adjustable to set maximum capacitance, after which it is locked to stem 20 by set screw 41. Vacuum nozzles 42, 44 are provided in apertures of walls 13, 14 to permit washing, cleansing and evacuation of the interior, after which they are sealed and covered with protective caps 43, 45. The several attachments are effected by arc welding in a helium atmosphere. A modified centring bearing for the stem 20 is described (Fig. 2, not shown).
Patent GB-734863-A (GB)
Title: Improvements in closure and terminal construction for electrolytic devices
IPC: H01G9/10
Filed: 1952-12-04
Abstract: 734,863. Capacitors ; mounting terminals. BRENNAN, J. B. Dec. 4, 1952, No. 30778/52. Classes 37 and 38 (1). An electrolytic device has the open end of its container sealed by two resilient insulating members with opposed mating surfaces, between which extends at least one conducting member. Fig. 1 shows an electrolytic condenser in which the leads 12, 13 from the electrode assembly 10 in an aluminium can 11, pass between layers 15, 16 of rubber or like material. The leads may consist of narrow strips of aluminium foil. A flanged disc 17 of aluminium supports the inner rubber ring 16, and the top of can 11 is spun over to press the resilient portions together and provide a sealed container. Modifications are described in which conductor 12 is fixed to disc 17 which is also provided with a terminal for mounting the condenser, or with a threaded projecting portion so that the condenser can be screwed into a threaded socket. The disc 17 and the inner portion of the top of can 11 may be coated with rubber material, instead of using the individual rubber member 15, 16. As shown in Fig. 9, the top of the can need not be spun over, and the disc 17 may consist of a solid disc of metal or plastic material such as phenol-formaldehyde. The edge of disc 17 may be provided with a ribbed projection to give a portion of increased pressure. An external metal ring may also be provided to strengthen the upper portion of the container, which can be made of plastic material.
Patent GB-745646-A (GB)
Title: Improvements in or relating to apparatus for oximetric measurement
Inventor: STOTT FRANK DUDLEY
IPC: G01N21/31
Filed: 1952-12-05
Abstract: 745,646. Blood testing apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 7, 1953 [Dec. 5, 1952], No. 30932/52. Class 81(2). [Also in Group XL(b)] The invention relates to apparatus for measuring the oxygen content of blood in the human ear, of the type comprising an ear attachment having a lamp mounting, a photocell mounting carrying a pair of photo-cells one provided with a filter having different absorption coefficients for oxidised and unoxidised haemoglobin and the other with a filter with the same absorption coefficient for both, a pair of transparent pressure members, between the lamp mounting and photo-cells and means for adjusting the pressure applied to the ear. According to the invention the transparent member furthest from the lamp mounting, the photo-cells and the colour filter are so disposed as to permit visual and photo-metric observations to be made simultaneously. As shown, the lamp 2 is mounted in a housing the end portion 5 of which acts as a transparent pressure member. The housing is mounted on a parallel motion linkage comprising four strips 12 of spring steel mounted vertically near one end of the base. The photo-cells 18 on red sensitive with a red filter and the other infra-red sensitive with an infra-red filter, are mounted on one face of a prism 13 another face 15 of which forms the other pressure member while a third face 20 is directed downwardly and enables visual observation of the ear to be made. An overcentre spring 1 and toggle 3 enable the lamp housing to be biased towards the prism thus clamping the ear and rendering it bloodless. Circuit. The photo-cells 18 are connected with their negative terminals, common and positive terminals to opposite ends of a resistance chain comprising potentiometer P2, rheostats P1 and register R1, The difference voltage developed by the cells is rendered alternating by a vibrating contact SV and are fed through a transformer, the primary of which is tuned to the vibration frequency, to the grid of the first stage of a two stage resistance capacity coupled amplifier comprising triodes V1, V2. A continuously variable gain control potentiometer is provided in the second stage of the amplifier which feeds a nicroammeter and bridge-type rectifier M. The gain of the amplifier may be reduced by 60 per cent. by means of switch S2 which tops the anode load of valve V1. Milliameter M may be used for measuring the voltage applied to the lamp 2 by changing over a switch S3 and thus putting the milliameter and its associated rectifier in series with a resister R1. A jack J is provided to enable recording apparatus to be connected, the recorder comprising a pentode amplifier, a voltage doubler detector, a smoothing network, a current amplifier and a pen-type recorder. Details of the setting up of the apparatus are given in the Specification.
Patent GB-858439-A (GB)
Title: Gummer for mineral mining machines
Inventor: PAUL THOMAS CAMPBELL
IPC: E21C35/20
Filed: 1958-09-27
Abstract: 858,439. Mineral-mining equipment. MINING ENGINEERING CO. Ltd. Sept. 25, 1959 [Sept. 27, 1958], No. 30953/58. Class 68(1). [Also in Group XXX] Gummings are collected from the cutter chains of a mineral - mining machine by the part helical blades 11 of a rotor 11, 12 mounted horizontally in a casing 10 having an open leading end and a discharge port 14 at the top of the rear wall of the casing chamber in which the rotor is mounted. The gummings pass through this opening to an upwardly inclined scroll conveyer 16, the axis of rotation of which intersects that of the rotor at right angles. The blades 11 of the rotor, which is driven through a clutch which slips at a predetermined load, are a close fit in the chamber and do not project beyond the open end of the casing.
Patent GB-218193-A (GB)
Title: Improvements in portable electric inspection lamps
IPC: F21V21/32
Filed: 1923-12-10
Abstract: 218,193. Carroll, W. W. Dec. 10, 1923. Hand lamps without lanterns; lamps for illuminating enclosed spaces.-In a portable inspection lamp comprising a flexible tube 1 enclosing an electric conductor 8 insulated therefrom the tube being provided at its outer end with a sleeve 2 screwed internally to receive an electric lamp 3 and secured at its inner end to a handle portion 6, a detachable reflector 4 carrying a lens and screwing over the sleeve 2 is provided. The device, however, may be employed without the reflector when a diffused light is required. The tube is secured to the handle portion by a screw cap 5 and the handle portion is adapted to contain a battery 7, the central terminal of which contacts with the conductor 8, a switch being provided on the handle portion for completing the return circuit through the sleeve 2 and the tube 1. In a modification the battery is dispensed with and two conductors are enclosed in the tube 1 connected to, or extended from, a flexible cable terminating in a plug for connection with an external source of current.
Patent GB-784813-A (GB)
Title: Device for locking handles to implements
IPC: B25G3/00
Filed: 1955-10-31
Abstract: 784,813. Fixing handles to brooms. McCRINK, J. J. Oct. 31, 1955 [Aug. 23, 1955], No. 31116/55. Class 61. A device for holding a handle 22 of a brush in a threaded aperture 20 in the brush head 12, Fig. 2, comprises a U-shaped clamp 26 provided with legs 28, 30 through apertures 31, 33 of which the handle 22 may pass to be secured by a screw 34. A strip 40 extends from the leg 30 and has a flat portion 42 which bears against the surface of the brush head 12. An angulated portion 46 bears against the corner 44 of the brush head and is of sufficient width to prevent rotation of the handle. The screw is provided with an eye 36 so that the brush may be hung. In a modification shown in Fig. 5, the body of the attachment 56 is shaped to conform with the contour of the brush head 52. The attachment consists of a strip 58 of metal having an opening 60 about which a collar 64 is welded. The brush handle 54 passes through the collar 64 and aperture 60 and is held in place by a set screw 66. The strip 58 has angulated end portions 72, 76 which engage the corners 74, 78 respectively of the brush head. In a further modification, shown in Fig. 9, the brush handle 102 is held in place by a clamp 104. The attachment for the brush head 100 is made from a single piece blank from which a tang is struck to form the clamping lugs. The attachment shown in Fig. 10 has a strip 134 protruding from a collar 128. The front edge 136 of a strip 134 may be sharpened to form a scraper.
Patent GB-338305-A (GB)
Title: Improvements relating to searchlights
Filed: 1929-10-14
Abstract: 338,305. Sperry Gyroscope Co., Ltd., and Pearse, E. Oct. 14, 1929. Searchlights; lantern screens.-In a searchlight of the kind in which the reflector is split vertically into two halves which are adapted to be deflected laterally to leave a relatively dark zone straight ahead, as required by vessels passing through a canal by night, and in which short cylindrical rings are mounted concentrically with the beam to cut off stray rays of light proceeding directly from the source of light, the cylindrical rings also are split vertically and are adapted to be deflected laterally correspondingly with lateral deflection of the two halves of the reflector. The reflector may be paraboloidal, or parabolic in vertical section and elliptical in horizontal section, whilst the source of light may be an electric are or an incandescent lamp bulb. In the form shown the half reflectors 2 are mounted in half carrier rirgs 8 which are pivoted about pins 9 and are connected to the half cylindrical rings 3 by means of bars 16, 17 or by means of gearing, linkage, or other mechanical transmission. One half of the cylindrical rings 3 are pivoted about a rod 4<a> and the other half about a sleeve surrounding this rod. The half reflectors and the half cylindrical rings are operated simultaneously bv means of a handle 10 pivoted about a vertical pin 11 on a bracket 12 mounted at the centre of the back of the lamp casing 5, the handle being connected to the half carrier rings 8 by means of horizontal links 11<x>, 13 and curved vertical arms 12<x>. The points of connection of the horizontal links to the handle, are on opposite sides of the pin 11, and those of the vertical arms to the half carrier rings 8 are on opposite sides of the pins 9. so that horizontal rocking of the handle 10 causes lateral deflection of the half reflectors and the half cylinder rings. Each of the latter is provided with a vertical wall 3a so that, when in the opened position, they present an obstruction to the rays directed forwardly from the source of light.
Patent GB-385398-A (GB)
Title: Improvements in drag nets and the like
IPC: A01K73/02
Filed: 1931-11-11
Abstract: 385,398. Trawl nets. ROBERT, A, V. A., Lorient, Morbihan, France. Nov. 11, 1931, No. 31232. [Class 48.] Trawl nets comprise a covering net a, with kites h, t, and a belly b shown dotted. The ground rope is weighted by iron rollers f and the otter boards n are of the type described in Specification 212,265, [Class 48, Fish &c.].
Patent GB-505638-A (GB)
Title: Improvements in or relating to metal-clad electric switchgear
IPC: H02B1/00
Filed: 1937-11-15
Abstract: 505,638. Sluice valves. REYROLLE & CO., Ltd., A. and ALLAN, A. Nov. 15, 1937, No. 31343. [Class 135] [Also in Group XXXVII] A sluice valve for separating adjacent bus-bar sections of oil or gas-filled electric switchgear, comprises a pair of plates E<6> connected by toggles to a pair of rods E<3> mounted on the ends of a cross-bar which is carried by a nut E<2> threaded on a spindle El. When the plates E<5> are brought against stops E<5> at the base of the valve chest, further downward movement of rods E<3> presses the plates against the walls E<7>. In another form, Fig. 6 (not shown), a single plate is employed and is pressed into position by a pair of wedges operated from the top of the chest.
Patent GB-651506-A (GB)
Title: Improvements in electrical induction apparatus
IPC: H01F38/30
Filed: 1948-12-03
Abstract: 651,506. Transformers. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Dec. 3, 1948, No. 31375. Convention date, Dec. 6, 1947. [Class 38 (ii)] [Also in Group XXXVI] Electrical induction apparatus such as a current transformer comprises a pair of spaced - apart coaxial and concentric generally annularly shaped hollow metal members in the inner of which is an annular magnetic core carrying a low voltage winding whilst a high voltage winding, which need be only lightly insulated, is wound about the outermost hollow metal member on the outside thereof and electrically connected thereto, said hollow metal members being insulated from each other by a filling therebetween of dielectric gas, preferably sulphur hexafluoride, said annular metal members being so relatively mounted that the inner one is connectable to earth so as to assume an " earthly " potential whilst the outer one is simultaneously connectable to a source of high potential. A current transformer has a porcelain shell 1, a generally toroidal-shaped metal casing 2, low-voltage winding 3 wound on core 4, and a high-voltage winding 5, consisting of a cable wound over the casing 2, which is connected to the casing. The secondary winding may be tapped. The members 3, 4 are supported by a metal pipe 6 which is welded to base 7, shields 8 being supported by insulating cylinders 9. Compressed gas, preferably sulphur hexafluoride, is used as the insulating medium between the windings. The chamber 2 is provided with insulating ring 10 with metallic bellow inserts 10a. The winding 3 is shielded by metallic sheath 11 having sealed gap 12. The interior of the transformer may be connected to a bellows (Fig. 3, not shown), and through an electrically-operated valve to a gas reservoir, the valve being also controlled by another bellows connected to a capsule placed inside the transformer. If the loading on the transformer is such that its temperature is lowered, the two bellows balance each other and there is no resultant action on the valve. When there is gas leakage from the transformer, however, the valve is opened to connect the reservoir to the interior of the transformer until equilibrium is restored. The base 7, which is connected to casing 11, may be insulated from earth (Fig. 4, not shown), use being made of the capacity between members 2, 11, and between member 11 and earth to determine the potential of the member 2, a voltmeter being connected between member 11 and earth. A thermostatically-controlled liquid capacitor may be connected in parallel with the voltmeter. The ammeter for measuring the secondary current may be connected through an insulating transformer.
Patent GB-309373-A (GB)
Title: Improvements in combination garments
IPC: A41B9/08
Filed: 1928-10-29
Abstract: 309,373. Akt.-Ges. vorm W. Achtnich et Cie. July 3, 1928, [Convention date]. Combination undergarments. -A drop flap 1 is provided at the. back of combination and like undergarments, which flap is connected across the front by a band 3. The band is elastic, at least in part, to allow of being slipped downwardly without undoing fastenings, which may be in the form of buttons 2 on the end of the band. The front of the knickers is integral with the trunk portion, but the back of the trunk portion terminates at the dotted line 4, the rear flap being integral with the rear of the knickers.
Patent GB-1014539-A (GB)
Title: Polymer compositions
Inventor: JOLLES ZVI ENRICO
IPC: C08K5/19
Filed: 1963-08-09
Abstract: Synthetic polymer compositions having anti-static properties comprise a synthetic organic polymer having incorporated therein up to 10% by weight of the polymer of a quaternary ammonium compound of formula <FORM:1014539/C3/1> where R1 is C10- 18 straight chain alkyl, R3 and R4 are C1- 6 straight chain alkyl, R2 is C10- 18 or C1- 6 straight chain alkyl, R5 is a straight or branched aliphatic group containing up to 18 carbon atoms, an aryl group, or an alkaryl or aralkyl group the alkyl residue of which contains up to 18 carbon atoms, and X is an anionic group.  Specified polymers are polyvinyl acetate, polyallyl compounds, polyethylene, polypropylene, polystyrene, polyvinyl chloride, vinyl chloride/vinyl acetate copolymers and polyvinylidene compounds. Specified anti-static agents are distearyl dimethyl ammonium dodecylbenzene sulphonate, stearate or palmitate; dicetyl dimethyl ammonium dodecyl benzene sulphonate, stearate or palmitate; stearyl trimethyl ammonium or cetyl trimethyl ammonium dodecylbenzene sulphonate and mixtures thereof; lauryl dimethyl ethyl ammonium dodecylbenzene sulphonate or palmitate; oleyl dimethyl ethyl ammonium stearate and palmityl dimethyl butyl ammonium dodecylbenzene sulphonate.  The agent may be added in the molten state, absorbed on an oil absorbent filler or pigment, or in solution or suspension in a liquid medium which may comprise a plasticizer, stabilizer or antioxidant for the resin.  Specified pigments and fillers are silica, chalk, dolomite, diatomaceous earth, calcium silicate, barytes, barium sulphate, china clay, kaolin or titanium dioxide. Examples describe the incorporation of distearyl dimethyl ammonium dodecylbenzene sulphonate in compositions comprising polyvinyl chloride, dioctyl phthalate and (1) tribasic lead sulphate and (2) a barium/cadmium stabilizer; a vinyl chloride/vinyl acetate copolymer and (3) dibutyl tin maleate and (4) tribasic lead sulphate; polystyrene and (5) diatomaceous earth, (6), (7) and (10) silica, (8) and (9) calcium silicate and (11) to (14) titanium dioxide; (15) to (17) polyethylene and titanium dioxide; the incorporation in polystyrene of distearyl dimethyl ammonium (18) palmitate, (19) stearate, (20) cetostearyl sulphate and (21) p-toluene sulphonate; the incorporation in polyethylene of (22) distearyl dimethyl ammonium p-toluene sulphonate and (23) distearyl dimethyl ammonium palmitate and silica; and the incorporation in (24) polystyrene and (25) polyethylene of cetostearyl trimethyl ammonium dodecylbenzene sulphonate.