baber/WOPTO huggingface dataset:
Patent GB-960204-A (GB)
Title: Polyvinyl alcohol films coated with vinylidene chloride-vinyl chloride copolymer
IPC: C08J7/052
Filed: 1963-02-11
Abstract: A coated film comprises essentially a polyvinyl alcohol base sheet directly coated on at least one side with a polymer mixture of from 90 to 95% of a copolymer of from 50 to 75% vinylidene chloride and from 25 to 50% vinyl chloride, and from 5 to 10% of a terpolymer of from 75 to 94,5% vinyl chloride, from 5 to 24,5% vinyl acetate, and from 0,5 to 5% of an ethylenically unsaturated aliphatic carboxylic acid or anhydride thereof.  The copolymer may contain substantially 60% by weight vinylidene chloride and substantially 40% by weight vinyl chloride.  The unsaturated acid or anhydride is preferably a compound containing 3-6 carbon atoms, e.g. acrylic, methacrylic, crotonic, maleic and itaconic acid, and maleic anhydride.  The terpolymer may contain substantially 86% vinyl chloride, 11% vinyl acetate and 3% maleic anhydride, or 86% vinyl chloride, 13% vinyl acetate and 1% maleic anhydride, the percentages being by weight. The film may have a thickness of between 0,0008 and 0,0012 inch and the polymer mixture may form a coating of a thickness of between 0,0001 and 0,00025 inch.  The polymer mixture may be applied as a solution in an inert organic solvent, e.g. methyl ethyl ketone, methyl isobutyl ketone, ethyl acetate, and tetrahydrofuran.  The film may be dried at a temperature between 40 and 110  DEG C. Conventional additives for improving slip can be incorporated in the coating composition.  Static can be removed from the film by conventional means, e.g. passage of the film through a dilute aqueous or alcoholic solution of a surface active agent such as glycerol mono-oleate.  Specifications 960,203 and 960,205 are referred to.
Patent GB-629414-A (GB)
Title: A process for the manufacture of pentaenes
IPC: C07C403/00
Filed: 1947-02-26
Abstract: Pentaenes are obtained by condensing by means of a Grignard reaction, b -ionone with 3 - hydroxy - 3 - methyl - hexene - (1) - yne - (5), adding to the triple bond of the 3.7-dihydroxy-3.7 - dimethyl - 9 - (21.61.61 - trimethylcyclohexene - (11) - yl) - nonadiene - 1.8 - yne - (5) so obtained 1 mol. of hydrogen by catalytic hydrogenation, subjecting the resulting 3.7-dihydroxy - 3.7 - dimethyl - 9 - (21,61,61 - tri methyl - cyclohexene - (11) - yl) - nonatorine-(1,5,8) to a re-arrangement and dehydration by the action of an organic acylation agent, e.g. acetic anhydride in the presence of an alkali metal acetate, preferably in the presence of a diluent. Detailed examples are given.
Patent GB-855484-A (GB)
Title: Improvements in resinous compositions
IPC: C08K5/524
Filed: 1959-02-18
Abstract: A resinous copolymer of acrylonitrile with 15 to 70 wt. per cent of vinyl chloride or vinylidene chloride or both are stabilized by incorporating in the copolymer a triorgano-phosphorus compound of the general formula:  <FORM:0855484/IV(a)/1> where X, X1 and X2 represent unsubstituted or substituted hydrocarbyl or hydrocarbyloxy radicals and when one or more of the X, X1, and X2 radicals is a hydrocarbyloxy radical at least one of the hydrocarbyloxy radicals contains an aliphatic carbon atom connected through an oxygen atom to the phosphorus atom, and further X1 and X2 may together represent a divalent radical consisting of a carbon chain terminated by oxygen atoms, which radical may be unsubstituted, or substituted by hydrocarbyl and/or hydrocarbyloxy radicals.  The Specification contains a very extensive list of compounds of the above general formula.  Examples of these compounds are triethyl phosphate, tridodecyl phosphate, tri-(2-methylpropenyl) phosphite, dibutyl phenylphosphonite, triphenyl phosphine, 2-(2-hydroxyethoxy)-1, 3, 2-dioxaphospholane, 2-methoxy-4-propyl-5-ethyl-1, 3, 2- dioxaphosphorinane.  The resin and the organophosphorus compound may be dissolved in an organic solvent such as acetonitrile, acetone, and dimethyl formamide. The solutions may be spun into fibres.
Patent GB-368956-A (GB)
Title: Improved electric lighting fitting
IPC: F21V21/30
Filed: 1931-02-23
Abstract: 368,956. Brackets. GENERAL ELECTRIC CO., Ltd. and RANDALL, E. L., Magnet House, Kingsway, London. Feb. 23, 1931, No. 5635. [Class 52 (v).] A lamp bracket comprises a loop member 8 slidable in 'a hole in a pillar 9 provided with a lock-nut 10 for securing the member in any selected position. The pillar 9 is screwed into a boss 11 o n a fixing plate 12 so that it can be turned through 360‹ and is secured in an adjusted position by screwing a wing-nut 13 therein against the boss 11.
Patent GB-802423-A (GB)
Title: Improvements in or relating to the production of wire for use in pre-stressed concrete construction
Inventor: HANN KENNETH GRAEME
IPC: B21C3/12
Filed: 1955-02-25
Abstract: 802,423. Making wire and rod; drawing; bending. SOMERSET WIRE CO., Ltd. May 24, 1956 [Feb. 25, 1955], No. 5644/55. Classes 83 (2) and 83 (4). In a method of forming crimped wire, Fig. 2, for reinforced concrete construction, a wire is drawn down to the required diameter and simultaneously given a helical configuration. A wire 11, Fig. 4, is drawn through a die 15 and on leaving the die passes through a guide 26 which is mounted in a rotary holder 24 at a position slightly eccentric to the axis of the die 15. The holder 24 is rotated at such a speed relative to the drawing speed that the helical pitch is from four to ten times the diameter of the helical path followed by the axis of the wire. The holder 24 is attached by a pivot 28 to a head 18 rotating on bearings 20 about the casing 14 of the drawing machine and is adjustable in position about the pivot 28 to vary the eccentricity and locked in position by a bolt 29 passing through a slot 30. In a modification the guide member 26 may be of helical form corresponding to the required form of the wire and may be rotatable on its own axis in the holder 24 at an eccentric position so that rotational rubbing on the wire is avoided. The formed wire may be heat-treated by passing electric current as it leaves the apparatus by the method described in Specification 748,357, the holder 24 being used as one of the current supply points. Specification 802,424 also is referred to.
Patent GB-563005-A (GB)
Title: Improvements in and relating to electrically heated blankets, flying suits and otherarticles of clothing
IPC: H05B3/34
Filed: 1943-04-08
Abstract: 563,005. Electrically heated clothing. LLOYD, R., and SUN-VIC CONTROLS, Ltd. April 8, 1943, No. 5680. [Class 40 (i)] An electrically heated flying suit, blanket, or the like, used in an aircraft cabin, ambulance, or the like, is combined with a regulator responsive to the temperature conditions external to the heated article so as to increase the electrical input with fall of such temperature. The temperature-responsive element is provided with a heating winding under control of the switch contacts so as to modify the temperature of the element in response to the operation of the switch contacts in the sense to cause inverse operation of the latter and maintain them in intermittent closure the percentage time of closure being dependent on the temperature conditions in the aircraft cabin or the like. The regulator may be similar to that described in Specification 517,538, [Group XXXVII], Figs. 1-4, with the modification that the strip 29 which is subject to ambient temperature is arranged to move its lower end in the opposite direction. The temperature setting is controllable by the knob 35.
Patent GB-490949-A (GB)
Title: Improvements relating to floor, wall and ramp arrangements in cattle containers, trucks and the like
IPC: B60P1/43
Filed: 1937-02-25
Abstract: 490,949. Vehicle fittings for loading. THORNE, J. H., and THORNE, I. J., (trading as THORNE & SON, J. H.). Feb. 25, 1937, No. 5127. [Class 78 (iv)] [Also in Group XXXII] In a vehicle body, cattle container, or the like, a section 8, Figs. 1, 2, of a floor or deck 4 is movable angularly about a pivot 9 from a substantially horizontal position to form a ramp and a part 11, e.g. a tail-board is pivotally attached to the section so as to be swingable between alternative positions about a pivot 10 parallel with and movable about the pivot 9, a strut-like member or members connected to the part 11 to swing therewith being adapted to support the section 8 when horizontal. The animal-carrying, doubledeck vehicle shown in Figs. 1, 2 comprises a frame 1, side walls 2, floor 3, upper deck 4, side gates 7, and a hinged rear door 5 adapted when swung down to form a ramp. The pivot 10 supports at each end a cranked lever 12 having a projection 12A rigidly connected by a lug 11A to the board 11. The lever 12 is pivoted and connected by a strong tension spring 15 to a lower strut 14, having a tongue 14A adapted to engage a slot 17 on the floor 3, the lever and strut forming a toggle linkage the extended position, Fig. 1, of which is determined by lugs 16. When the parts are moved from the positions shown in Fig. 1, to those shown in Fig. 2, the weight of the board 11 and part of the weight of the deck-section 8 is more or less balanced by the increasing tension of the spring 15. Figs. 4, 5 show parts of a single-deck vehicle comprising a frame-member 21, side walls 22, and floor 23, the rear section 28 of the floor being hinged at 29 to the main floor portion and at 30 to a rear door 31 adapted to form a ramp. Rails 32 fixed below the section 28 are engaged by grooved rollers 35 at the forked lower ends of struts 34 rigid with the door 31, strong torsion springs 36 acting between the struts and the section 28. When the parts are moved from the positions shown in Fig. 5, to those shown in Fig. 4, the springs 36 balance the weights of the section 28 and door 31. Additional balancing means, e.g. a spring-winding device 37, Figs. 1, 2, for the door, of known type, may be provided. Specification 402,554 is referred to. The Provisional Specification describes a construction in which the rear section of the floor is hinged to a tail-board or the like side members of which project downwardly and are jointed to lower strut members, torsion springs being provided at the joints.
Patent GB-1168093-A (GB)
Title: Improvements in Floor Covering Dispensers
Inventor: SCHWAB HELMUT
IPC: A47F7/17
Filed: 1967-02-07
Abstract: 1,168,093. Roll dispensers. H. SCHWAB. 7 Feb., 1967, No. 5765/67. Heading A4G. Equipment for unwinding rolled floor covering, rewinding and cutting it comprises two separate co-operating units, namely an unwinding unit having a base 1, Fig. 1 carrying a turntable 3 supporting the vertical roll with non-rotatable open support and guide rings 7, 10, and a take up and cutting unit having a base 20, Fig. 2 on wheels 22 carrying a turntable 54 with removable spindle 56 supported at 58 and a column having a guide 34, a hinged gripping bar 28, and a vertically movable cutter 38, 40. The take up unit is wheeled to a selector unwinding unit, the covering leading edge fed between bar 28 hinged at 26 on upright 24 and an upright 32 and fed into open rings 60, 61 on spindle 56 where it is gripped by manually operated gripping bar 65. The covering is rolled manually or via handle 69 and gearing onto the spindle 56, wheel 52 actuating the length counter 50. Handle 30 is moved down to press bar 28 against upright 32 after which cutter 38 is moved down a column 36 to sever the covering along the edge of the bar 28. The rewound covering on spindle 56 is removed, gripper 65 manually released and spindle 56 withdrawn.
Patent GB-1215553-A (GB)
Title: Self-contained sewage system
IPC: B64D11/02
Filed: 1968-02-06
Abstract: 1,215,553. Self-contained sewage systems. KOEHLER-DAYTON Inc. 6 Feb., 1968 [24 March, 1967], No. 5850/68. Heading B7B. [Also in Division E1] A self-contained sewage system for buses, railway passenger carriages, and aircraft, comprises a tank 10 rotation- or blow-moulded from polyethylene, in one piece and of constant wall thickness, and having a flush bowl 20 extending by its spout 132 thereinto, and a reinforcing bridge 18 of moulded plastics or metal, disposed around the outside of the tank 10 (or moulded partially or entirely within the tank) and comprising a plate 100 fastened to a shoulder 102 of the top 17 of the tank and to the flange 107 of the bowl 20, two sides 110 connected by horizontal flanges to the plate 100, and a cross member 120 tying the sides 110 together. Reinforcing indentations e.g. 42 are provided in the ends 13 14, sides 11 and (12) and top 15 of the tank 10, and are formed in the bridge sides 110 to mate with some of those in the sides 11 and (12). In use, a pumpmotor unit 21, controlled by a timer 22 actuated by an operator, draws flushing liquid (filling the tank to a preset level) through a filter 127 and supplies it via conduit 128 to the bowl manifold 129 and then into the tank via spout 132. The system is emptied by connecting a service vehicle to a discharge conduit 125 and raising a valve member 76 from its seat by means of a spring device and of a cable 90 connected to a remote actuator, so as to drain the tank 10, and then flushing the tank 10 out with fresh liquid supplied to a tube 25. Tie-down rods 31 are pivoted to brackets 32 on a support surface 28, and are secured by nuts 38 against a cross member secured to the tank.
Patent GB-723908-A (GB)
Title: An improved machine for producing lock seamed tubing
IPC: B21C37/10
Filed: 1952-03-06
Abstract: 723,908. Making seamed tubing. LAWRENCE, J. W. April 24, 1953 [March 6, 1952], No. 5889/52. Classes 83 (2) and 83 (4). Drawing.-A machine for producing lock seamed tubing comprises, in combination, a die head carrying fixed contoured dies between which an initially flat strip of thin metal can be drawn, the said dies converting the metal strip in progressive stages into lock seamed tubing and means for gripping and feeding forwards the finished tubing emerging from the die head and thereby continuously drawing the strip through said head in a straight path. The die head A comprises a trough 1 a following die unit 2 having a channel 5 and carrying opposed sets of die plates 6-12 clamped to the top surface of the unit. The trough 1 has inwardly directed flanges 1a which fold the copper strip 13 into a U-shaped formation, the strip being lubricated with oil, the surplus being collected in a drip-tray 15. As the folded strip issues from the trough the upper ends of the limbs 13a and 13b pass through the die plates which are contoured as shown in Figs. 4, 9 to 12 to progressively form the lock seamed joint. Extending through the channel 5 in the die unit 2 is a mandrel 21 about which the tubing T is formed. The end of the mandrel is attached to a lever 22 which inserts or extracts the mandrel into or from the channel 5, the mandrel being locked in position by a screw 25. A pair of knurled feed wheels 26 and 27 mounted between a base plate 28 and a superimposed plate 29 grip and feed forward the finished tubing T emerging from the die unit. The mandrel extends between the feed wheels to prevent crushing of the tube. The feed wheel 27 is driven from the wheel 26 through integral spur gears 32 and 31 respectively, the wheel 27 being driven by an electric motor. The spindle of the feed wheel 27 is mounted in adjustably spring-loaded bearing blocks .33 slidable in transverse slots 34 and 35 in the plates 28 and 29. From the feed wheels the tubing passes between pairs of straightening rolls 41 and 42, the rolls 42 being mounted on manually adjustable eccentrics. Between the die unit and the feed wheels there is pair of rollers 43, .44 which flatten the seam 13f and bring the tubing to the correct size. The bottom roller 43 is mounted in the die unit and the upper roller 44 is mounted in a spring-loaded adjustable block 48 which slides on vertical rods 51. The machine may include an automatic parting-off saw, a coil holder for the strip metal together with a tensioner and also tanks for flux and solder for tinning or soldering the strip metal. Alternatively, the feeding means may comprise an endless roller chain furnished with pairs of laterally spaced shoes arranged on opposite sides of the tubing issuing from the die unit. Specification 723,907 is referred to.
Patent GB-340263-A (GB)
Title: Improvements in rotary engines or motors
IPC: F03C1/36
Filed: 1929-06-21
Abstract: 340,263. Revolving-cylinder engines. ANDERSON, H. P. H., 62, Elgar Avenue, Tolworth, and PETERSEN, R. J., The Lea, Esher, both in Surrey. June 21, 1929, No. 5919/30. Divided on 325,556, [Class 122 (iii), Steam engines, Kinds &c.]. [Classes 122 (ii) and 122 (iv).] In a radialcylinder engine of the type in which the cylinder block 11 revolves on a distributing valve 1 and the reciprocating pistons engage a surrounding eccentric track, the valve is divided by a web 2 into inlet and exhaust compartments. The inlet port is formed by a gap 10 between the web 2 and a movable segment 8, carried by arms 9 on a rotatable spindle 6. Rotation of the spindle 6 to reverse the valve automatically closes the gap 10 and opens a corresponding gap at the other end of the segment.
Patent GB-540177-A (GB)
Title: Improvements in the manufacture of bearings
IPC: F16C33/14
Filed: 1940-04-02
Abstract: 540,177. Casting composite articles ; making bearings. GLACIER METAL CO., Ltd., HOLLIGAN, P. T., and BATE, J. April 2, 1940, No. 5936. Addition to 540,048. [Classes 83 (i) and 83 (ii)] Bearings are made by coating a strip of steel or other backing metal with aluminium or zinc or an alloy of either, as in the parent Specification, machining the coated face while keeping the strip flat, cutting to form blanks which are then formed into whole or semicylinders with the coating inside, performing one or more further pressing operations on each blank to produce a permanent set, and finally machining the inner surface to the required size, the coating at no time being subjected to sufficient tension to crack it. The cleaned strip 1 may be fed by rolls 2 past pots 3, 6, which apply zinc-ammonium-chloride, a furnace 4 at 300‹C, a pot 8 and bath 12, which apply zinc containing 1 per cent of aluminium at 450 to 500‹, an asbestos wiper 17, and a pot 15, having a gate 18 to determine the thickness of the aluminium layer which it applies at 700‹C. A furnace 10 heats the strip during coating and it is slowly cooled by an air jet 19. The strip then passes between feed or pressure rolls 21 to a milling device 20, 22, as described in Specification 522,831, and a blanking machine 23. If desired the coating may be given an additional coat of soft antifriction metal 0.001 to 0.003 inch thick. Specification 100,448, [Class 83 (i)], also is referred to.
Patent GB-122331-A (GB)
Title: Improvements in Ground Levers for Railways.
Inventor: WILLIAMS LLEWELLYN WYNN
IPC: B61L5/02
Filed: 1918-04-08
Abstract: 122,331. Williams, L. W. April 8, 1918. Ground levers.-Safety hold-over treadles f for one-way point levers are formed with a bent or inclined part g adapted to engage a projecting pin b on the lever so as to hold the same over. To adjust the treadle to point blades having different amounts of travel, a series of fulcrum pin holes l are provided and a guard is mounted on the handlever to engage the opposite side of the treadle lever so as to ensure its engagement with the pin b.
Patent GB-1499121-A (GB)
Title: Colour changing device
IPC: F21S10/00
Filed: 1976-01-22
Abstract: 1499121 Lamps E C WALKER 22 Jan 1976 [12 Feb 1975] 5963/75 Heading F4R [Also in Divisions G4-G6] In a device for displaying changing colours, a disc 35 having transparent or translucent segments of different colours is rotated stepwise between a light source 34 and a central aperture 33 in a plate 32, the bunched ends of sets 14, 16, 17 of glass fibres being mounted closely above aperture 33. Drive for disc 35 is provided by a motor 43 in the base 30 of housing 1 through an elongated spring 44 transmitting drive to a plate 38 with recesses 39 engaged successively by a detent spring 41, plate 38 being mounted on a collar 36 to rotate with disc 35.
Patent GB-1525154-A (GB)
Title: Transducers
IPC: H04R7/24
Filed: 1976-02-17
Abstract: 1525154 Diaphragms; electrets WESTERN ELECTRIC CO Inc 17 Feb 1976 [18 Feb 1975] 06058/76 Heading H4J A diaphragm 20 is pressed against a rim 16 of a transducer housing 10 by a clamping means 50 via a spring washer 40, e.g. a bellville steel washer, and an annular insulator 30, the arrangement being characterized in that annular ridges 55 and a centre post 56 of the clamping means are brought into contact with the diaphragm during clamping so as to tension the diaphragm. The heights of the ridges and the centre post are graduated, of the order of microinches, so as to provide a slightly domed locus. The clamping means 50 is provided with holes 57 for pressure equalization. The diaphragm is preferably an electret, e.g. a P.T.F.E. dielectic -membrane coated with aluminium on the face adjacent the lip 16 of the housing 10 which is metallized with a film of gold applied over a copper flash so as to act as one electrode. A rear contact plate 60 is separated from the housing wall by an airgap and is insulated from a locking ring 80 by an annular dielectric spacer 70, the rear contact plate 60 being electrically connected to the clamping means 50 which sits inside the annular insulator 30 when the locking ring 60 is screwed into the housing (cf Fig. 3, not shown).
Patent GB-941953-A (GB)
Title: Improvements in or relating to the feeding of material to a conveyor
Inventor: SMALLEY WILLIAM
IPC: B65G47/00
Filed: 1959-02-21
Abstract: 941,953. Trimming conveyed material. WM. GARDNER & SONS (GLOUCESTER) Ltd. Feb. 19, 1960 [Feb. 21, 1959], No. 6059/59. Headings B8A and B8S. [Also in Division G1] Wood shavings are discharged from bunker 8 into hopper 5 by rotating helical blades 11 so that a substantially constant level of shavings is maintained over endless belt 2. The material conveyed by the belt is trimmed by rotating trimmers 14 and 23 and passes on to weighing belt 33. Belt 33 operates pivoted roller 34 which controls either the speed of belt 2 or the height of a trimmer to give a substantially constant discharge of material through opening 27. The trimmer 13 may be pivotally mounted for adjustment of height above belt 2 and the hopper 5 may be shaped (Fig. 2, not shown) to limit the lateral dimension of the shavings conveyed on said belt 2.
Patent GB-877121-A (GB)
Title: Improvements in or relating to props, particularly pit props
IPC: E21D15/32
Filed: 1958-02-26
Abstract: 877,121. Pit props. EGGEMANN, W., and CAMPENHAUSEN, VON E., [trading as SCHWARZ KOMM.-GES.,HERMANN]. Feb. 26, 1958 [March 19, 1957], No. 6146/58. Class 20(2) [Also in Group XXVIII] A telescopic pit prop having an inner part 11 of circular cross section frictionally held extended by a clamp 16 in an outer part 9 of circular cross - section, comprises guiding slots 27 in the outer part engaged by the ends of a pin 28 in the inner part to prevent the relative rotation of the two parts. The clamp is closed by a wedge claw 19 driven over the ends 17, 18 of the clamp by a wedge 21 passing through holes in these ends. The clamp is welded and connected by straps 14 to the outer prop part 9. The prop is set by wedges 34, 35 adapted to be pushed through holes 30, 31 in the outer prop part and to engage inclined surfaces 32, 33 on the inner prop part.