baber/WOPTO huggingface dataset:
Patent GB-1358445-A (GB)
Title: Anthraquinone dye-stuffs manufacturing process
IPC: C09B1/515
Filed: 1971-05-20
Abstract: 1358445 Dyestuff mixtures IMPERIAL CHEMICAL INDUSTRIES L td  14 April 1972 [20 May 1971] 16009/71 Heading C4P Mixtures of disperse dyestuffs consisting of a dihydroxydiaminoanthraquinone and N- methyl - derivatives thereof are prepared by reacting a di-hydroxydiaminoanthraquinone, or mixtures thereof with formaldehyde in aqueous medium containing 1-20% by weight, based on the weight of water present, of hydrochloric or sulphuric acid. Preferably 0À1-2À0 moles formaldehyde per mol. of anthraquinone starting material is used and a sulphite compound may be present to minimize methylation of both amino groups. Specified starting materials include diaminoanthraruffin and diaminochrysazin. The dye mixtures give blue shades on polyesters.
Patent GB-457777-A (GB)
Title: Improvements in or relating to degassers
IPC: B01D19/00
Filed: 1935-06-04
Abstract: <PICT:0457777/III/1> A liquid is degassed by causing it to flow down the inner surface of an evacuated chamber while subjecting it to an increasing temperature gradient.  The process may be carried out in one or more stages.  As shown in Fig. 2 the apparatus may comprise an inner cylinder 1 heated by radiation from the outer cylinder 2. The liquid is distributed by the device 4 to the inner surface of cylinder 1 and after traversing this is passed by the conduits 6, 9 to the inner surface of cylinder 2, which is surrounded by jacket 13 providing an increasing temperature as the liquid flows downward. The process is particularly applicable as a preliminary to high-vacuum distillation, and a part of the distillation may be effected in the degasser.
Patent GB-187276-A (GB)
Title: Improvements in interference tubes for phonographs and telephones
IPC: G10K11/22
Filed: 1921-06-13
Abstract: 187,276. Wolvekamp, M. E. June 13, 1921. Sound-directing appliances. - Sound passages in phonographs or in the receivers or transmitters of telephones or telemegaphones, are provided with fixed or extensible by-passes to permit equal volumes of sound to traverse simultaneously paths of unequal length to eliminate false tones by interference. Fig. 2 shows a fixed by-pass 4 and an extensible by-pass 5a applied to the tone - arm of a phonograph, and Fig. 6 shows a similar bypass 4 applied to a telephone receiver. In the application to a telephone transmitter, the main sound passage x, Fig. 7, is formed by passages 11, 12 around the disc. Fig. 8 shows the passages 11, 12 formed round a cylindrical partition 16. Fig. 9 shows by-passes of varying lengths embodied in the receiver 22 of a telemegaphone.
Patent GB-291734-A (GB)
Title: Improvements relating to apparatus for the inter-conversion of mechanical and electrical oscillations
IPC: H04R9/12
Filed: 1928-06-05
Abstract: 291,734. British Thomson-Houston Co., Ltd., (Assignees of Robinson, L. T.). June 6, 1927, [Convention date]. Magnetic instruments; phonographic recorders and reproducers. - A device for the interconversion of mechanical and electrical oscillations and more particularly for recording sound or for reproducing sound from a record comprises magnetic means arranged to form an air gap, a tensioned current-carrying conductor lying in the gap and attached at or near its middle point to a resiliently mounted movable member, such as a sound-emitting diaphragm or stylus needle, and resilient means arranged at the opposite sides of the movable member and acting substantially perpendicularly to the conductor for adjusting the tension thereof. In the construction shown, magnets 1, 2 are clamped to an insulating support 3 by non-magnetic members 4, 5 between which a spring 6 is supported. A movable member 7 carrying a record cutter or phonographic needle is attached to the spring intermediate its ends. A conductor 9, located in the air gap between the magnets 1, 2 and connected between terminals 10, 11, is attached to the member 7 and subjected to a variable tension by adjustment of nuts 12 - - 15. The nuts 14, 15 are threaded on bolts 16, 17 respectively, the bolts being connected to the conductor by springs 18, 19 and suspended from members 20, 21 attached to the support 3. The apparatus is enclosed by a cover 22 containing a damping fluid, such as oil. Specification 286,719 is referred to.
Patent GB-1350453-A (GB)
Title: Process for polymerizing unsaturated fatty acids and their esters
IPC: C07C57/02
Filed: 1971-05-21
Abstract: 1350453 Dimers of unsaturated fatty acids and their esters KAO SOAP CO Ltd 21 May 1971 [4 June 1970] 16311/71 Heading C2C The invention comprises an improved process for the production of a polymer product mainly composed of dimer having a cyolohexene structure by the thermal polymerization of an unsaturated fatty acid containing conjugated unsaturated bonds or its ester, wherein the improvement comprises carrying out the process in the presence of an aryl sulphohalide as catalyst. Specified conjugated unsaturated fatty acids are those derived from safflower oil, linseed oil, soy-bean oil, sunflower oil, tall oil and rape seed oil. Examples are given in which a methyl ester of safflower fatty acid and a soybean oil fatty acid are polymerized.
Patent GB-181967-A (GB)
Title: Improvements in or relating to the grass boxes of lawn mowers and the like
IPC: A01D43/063
Filed: 1921-06-14
Abstract: 181,967. Poppe, P. A., and White & Poppe, Ltd. June 14, 1921. Lawn-mowers. - The grass-box of a motor-driven lawnmower is carried by arms pivoted so that it can be moved from its normal position into one in which it forms a protective covering for the mechanism. The box A is suspended at each end from an arm B pivoted at B<2> to the frame of the machine each end of the box being provided with a trunnion which engages a slot B<3> in the corresponding arm. In the normal position of the box projections B<4> on the arms engage stops C<2> on the frame, but they can be moved to the position indicated in dotted lines, thus supporting the box in an inverted position over the engine, magneto, and silencer. According to the Provisional Specification, the invention may be applied to grass-cutters generally.
Patent GB-221300-A (GB)
Title: Improvements in straining or refining liquids, pastes, pulp, and the like fluid or quasi-fluid materials
IPC: B01D29/00
Filed: 1923-06-23
Abstract: 221,300. Torrance, J. R. June 23, 1923. Straining liquids.-Matter is separated from fluid or semi-fluid by passing the fluid &c. as a film or stratum between a roller and a fixed breast plate which form a slot-like passage of such width that only particles of the desired fineness can pass. The apparatus shown is applicable for treating paint. A roller 1 dips into the paint in a receptacle 3 and carries a film of the paint up past a breast plate 2 which prevents the passage of coarser matter. The paint is removed from the roller 1 by a scraper 4 and directed by the upper surface of the plate to a receiver 5. The plate is supported by arms 6, mounted eccentrically on the axis of the roller, and can be adjusted vertically to regulate the width of the passage by means of screwed bolts 12 connected to the arms 6. Scrapers of leather or other material may be fixed to the angle iron surrounding the container at the top to operate on the end faces of the roller 1. According to the Provisional Specification a second roller may take the place of the fixed breast plate.
Patent GB-299687-A (GB)
Title: Improvements relating to holding-down screw installations for plate-edge planing machines
IPC: B23D1/26
Filed: 1928-06-06
Abstract: 299,687. Smith Bros. & Co. (Glasgow), Ltd., and Ferguson, A. June 6, 1928. Planing.-Plates are clamped on edge in an edge-planing machine by a number of headed screws 1 which are advanced by rotation through nuts 6 by rotating a common shaft 4 geared with each screw, each screw having a slip clutch. Each clutch comprises a sleeve 8, slidably keyed on the screw 1, and carrying between upper and lower friction-drive rings 12 a worm wheel 9 driven directly or through gearing by the shaft 4. Located above the upper friction rings is a collar 13 pressed by a spring 15 which is adjusted by a nut 16 on the screwed end of the sleeve. The mechanism is mounted on and within the beam 2.
Patent GB-633155-A (GB)
Title: Improvements in or relating to lamp shades and lamp shade holders
IPC: F21V1/00
Filed: 1947-06-21
Abstract: 633,155. Lampshades. PAGE, A. June 21, 1947, No. 16430. [Class 75(ii)] A lampshade comprises a horizontally disposed support plate 1 with radial slits 3 to receive the inwardly directed edges or seams 5 of shade elements 4 bent to curved form from the flat; alternatively the edges or seams 5 may be notched to fit over the plate, or both the edges or seams 5 and the plate 1 may be notched to interlock. Wire staples 7 are attached to the shade elements 4 immediately above and below the plate 1 to prevent axial movement. Holes 6 may be provided in the shade elements 4 to receive a string or tape to prevent outward radial movement of the edge ports 5. An additional slotted metal plate of larger diameter may be fitted lower down the shade to preserve its shape, and the side edges of the elements 4 may be held together by headed and pronged paper clips 8, or by adhesive. The plate 1 may be formed with radial extensions between the slots which may be bent to the required angles to assist in holding the shade elements 4. The slots 3 may be formed with barbs, or wire hooks may be provided to prevent the shade elements from slipping back out of the slots. Nearby oppositely disposed edge ports 5 may be bridged by light tension springs to hold them in position on the disc. The plate 1 may have openings formed to allow hot air to escape, and may be formed star shaped with the slots 3 formed in the points thereof. Adjacent edge ports 5 may engage in separate slots which may be formed in pairs around the disc periphery. Fig. 5 shows an arrangement wherein the troughshaped elements face outwardly, the sides being pressed together at their upper edge 5a to form a seam 5 which engages in the slots 3. Alternatively the shade may be formed of one or more elements which are creased to produce a desired shape, and the creases introduced into the slits or slots.
Patent GB-922083-A (GB)
Title: Improvements in and relating to the production of thermoplastic film and tubing
IPC: B29C48/10
Filed: 1959-05-14
Abstract: Biaxially stretched tubular film composed of a synthetic organic atactic thermoplastic polymer in which the crystallinity does not exceed 10% by volume is continuously produced by extruding the polymer in tubular form at a temperature between 60 DEG  and 100 DEG C. above the second order phase transition temperature but below the first order phase transition temperature of the polymer, stretching the tubular film longitudinally while it is being allowed to cool by withdrawing it from the extrusion die at a rate greater than the linear rate of extrusion, simultaneously stretching the tubular film radially by inflating it and thereafter collapsing the inflated tubular film.  The polymer may be a polymer or copolymer of styrene or of parachlorostyrene, alpha methyl styrene, or paraethylstyrene, or a polymer of vinyl naphthalene.  There may be used copolymers of styrene and styrene homologues and substituted styrenes with acrylic esters, acrylonitrile, vinyl carbazole, dimethylalkyl maleate, octyl alkyl maleate, 2-ethyl hexyl acrylic esters, and butyl, hexyl or octyl methacrylate.  In an example, an atactic styrene-acrylonitrile 72/28 w/w copolymer having a degree of crystallinity 0% by volume and a second order phase transition temperature of 90 DEG C. is extruded at 160 DEG C. and a rate of 30 in./min. in the form of tubing of 7/8 inch o.d. and 1/32 inch wall thickness.  The tubing is withdrawn from the die by means of pinch rolls at a rate of 15 feet per minute and is inflated by means of air introduced through an inlet in the extrusion head to about six times its original diameter to form a biaxially oriented tubular film having a wall thickness of 0,0015 inch.  Specification 922,084 is referred to.
Patent GB-536567-A (GB)
Title: Improvements in and relating to the production of photographic blue-prints by "semi-dry" development
IPC: G03C1/64
Filed: 1939-06-06
Abstract: 536,567. Photographic blue-print processes. HALDEN & CO., Ltd., J., HOLDEN, J., and NORTON & GREGORY, Ltd. June 6, 1939, No. 16544. [Class 98 (ii)] In the semi-dry developing and fixing of the blue-prints by the application of a film developing solution, the prints, before development, are damped with water, or with an aqueous solution of a wetting agent or a plasticizing agent, applied as a film, spray, or vapour. The papers used are those sensitized by coating with a ferrocyanide or a ferricyanide or both and an iron salt, preferably a double iron salt, together with an alkali salt of an organic acid, buffer salts, alkalis or acids. As wetting agents may be used organic alkyl sulphonic acid salts (e.g. an alkyl naphthalene sodium sulphonate), or sulphuric acid esters of higher fatty alcohols ; and as plasticizers glycerine, di-ethylene glycol, butylene glycol, or propylene glycol. The predamping may be effected with a sponge or swab or by a ductor roller ; and the application of developer may follow immediately or after an interval, preceded or followed by the application of heat. Examples are given in which a paper is sensitized with a mixture of an aqueous solution containing ferric ammonium oxalate and sodium borate with an aqueous solution containing ferrocyanide, ferricyanide, oxalate and chlorate of potassium, sugar and gum arabic, to which sodium nitrite is added ; and after pre-damping is developed with an aqueous solution containing mono-sodium orthophosphate, magnesium sulphate, potassium bromate, zinc sulphate, and citric acid. In one example, the pre-damping solution contains as wetting agent isopropyl alcohol and cyclohexanol which evaporate from the print after development ; in another it contains a mixture of a volatile wetting agent and a non-volatile wetting agent ; and in a third it contains, in addition to a wetting agent, phosphoric acid which assists even absorption of the developer and prevents " bloom " in the developed print.
Patent GB-1123160-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F39/00
Filed: 1967-04-12
Abstract: 1,123,160. Washing machines. G. BORGHI. 12 April, 1967 [17 June, 1966], No. 16659/67. Heading D1A. In a washing machine the washing chamber 2 is resiliently suspended from the housing 1 and is connected thereto by shock absorbers 5 formed by fractionally engaged relatively movable parts 9, 10, locking means 11 being provided which can prevent relative movement of these parts. Washing chamber 2 is suspended by springs 4 and contains a rotatable drum 3. Discs 9 are of high friction material and are carried on laminations 6 attached to housing 1, plate 10 being secured 'to chamber 2. To prevent vibration of the rank, pin 11 is passed through registering openings in laminations 6 and plate 10.
Patent GB-152090-A (GB)
Title: Improvements in or relating to gyro compasses
IPC: G01C19/38
Filed: 1919-07-03
Abstract: 152,090. Brown, S. G. July 3, 1919. Gyroscopic compasses.-The damping-means are rendered inoperative, either at will or automatically, during turning or change of speed of the ship &c. in order to eliminate disturbances of the compass due to such turning or change of speed. The drawing shows the invention applied to the compass described in Specification 124,529 in which the damping means comprise a liquidcontaining bottle B communicating by a pipe b with a similar bottle on the opposite side of the gyro-casing. Within the bottle B is an electromagnet E which when energized attracts an armature e and operates a valve e<1> carried by the armature so as to stop the flow of liquid through the pipe b. A balance-wheel F is operated by the repeater so that when the ship changes its course the circuit of the electro-magnet is completed through one of the pairs of contacts f, d'. The valve e<1> may be adapted to allow free communication between the damping bottles when operated, instead of cutting off the flow of liquid entirely. When a change of speed occurs, the electro-magnet circuit may be closed, either by hand, or by a mechanical device operated by changes in the speed of the engine.
Patent GB-1190714-A (GB)
Title: Earth Moving Bowl Type Scrapers.
IPC: E02F3/64
Filed: 1968-04-08
Abstract: 1,190,714. Earth-moving bowl scrapers. CATERPILLAR TRACTOR CO. 8 April, 1968 [24 Nov., 1967], No. 16720/68. Heading E1F. To minimise stresses in the draft yoke 13, 14, 17 of a bowl scraper the two hydraulically operable piston cylinder units 22 for controlling the raising and lowering of the front of the bowl of the scraper are pivotally connected by plain pivots 27 to the ends of a spreader member 21 extending across the top of the bowl between the fronts of the side walls thereof and by gimbal type connections 28 to the facing ends of the transverse tube 13 of the draft yoke.
Patent GB-258369-A (GB)
Title: Improvements in or relating to means for dusting or cleaning paper prior to printingoperations
IPC: B41F23/06
Filed: 1925-06-29
Abstract: 258,369. Hunt, H. W. June 29, 1925. Dust, removing and collecting. - Apparatus for dusting paper prior to printing operations comprises a carrier frame detachably connected to the framework of a printing- machine, a dust-receiving casing 1 adjustably mounted on the carrier frame, and a cleaning-brush 3 mounted adjustably on the carrier frame and situated within the casing. The brush may be stationary or rotary, and the dust may be removed by suction from the casing. The brush 3 is slidably mounted in supports 10 adjacent to an impression cylinder 2, and is adjustable relatively to the supports by means of screws 9. The supports 10 are fixed to arms 15 connected together by cross-rods to form a carrier frame at the lower end of which are extensions 23 engaging in sockets 24 on the frame of the machine. The arms 15 are extensible, and are provided at their upper ends with rollers 25 resting on another part 26 of the machine frame. The casing 1 is provided with slotted lugs 27 resting on the supports 10 and adjustably secured thereto by screws 28. The top surface 31 of the casing 1 is made concave so as to collect dust falling off the sheets after they leave the cylinder 2 ; also, a flexible apron 33 arranged like a spring blind on a roller 32 is provided to collect dust falling off the sheets in their progress to a delivery table 34. A spring-mounted brush 35 removes the dust from this apron and it is collected on the surface 31. The Provisional Specification describes a method of hooking the casing 1 on to the cross-rods.
Patent GB-182668-A (GB)
Title: Improvements in pencil holders
IPC: B43K21/08
Filed: 1921-06-17
Abstract: 182,668. Warman, W., and Cook, W. J. June 17, 1921. Pencil-holders.- In a pencil-holder of the screw-propelled type, the rotating member 13 is sprung on a reduced end 10 of the casing 1 and has a slotted tube 9 secured to it by a tapered pin 15. The slotted tube contains a follower 7 provided with nicks 8 which engage internal screw-threads 6 in the casing 1, so that when the member 13 is rotated the lead is fed forwards. The casing 1 is tapered and has a split end to grip the lead 3. The movable member 13 has four or five slots towards its end 12, which is shaped to spring into a nick 11 in the casing; a similar clip 16 holds a cap 17 at the other end and provides a chamber 18 for lead refills. By turning the member 13 in the direction opposite to that for feeding the lead forwards, the follower 7 bears against the end of the pin 15, and further rotation disengages the casing and rotating member.
Patent GB-637497-A (GB)
Title: Improvements in or relating to the manufacture of resistors comprising a liquid high resistance medium
IPC: H01C11/00
Filed: 1948-06-22
Abstract: 637,497. Liquid resistances. GENERAL ELECTRIC CO., Ltd., GOSSLING, B. S., SOUTER, L. S., and PHILLIPS, N. M. June 22, 1948, No. 16756. [Class 37] A liquid resistor, Fig. 2, comprising an envelope formed by a glass tube 1 and tubular platinum electrodes 2, 3 and containing a liquid high resistance medium having a water content, for example a mixture of toluene, ethyl alcohol picric acid with a small amount of water, is characterized in that the internal surface of the envelope as a result of treatment fully described in the Specification is so conditioned in regard to water absorption, i.e. water content, as to be in water equilibrium with the liquid resistance medium 8. This feature it is stated ensures stability of resistivity and temperature coefficient which latter is made zero by suitable proportioning of the ingredients in the medium 8. A coating of silicone on the outer surface of the glass tube 1 prevents surface humidity effects. The internal surfaces of the platinum tubes are coated with platinum black to suppress polarization effects. In Fig. 2 the platinum tube 3 is dimpled at 10 trapping vacuous space at 9 so that liquid cannot flow into 9 in any position of the envelope, but can expand into the space when heated. In a modification, the dimpling is omitted and the vacuum space appears as a bubble free to move along the length of the envelope, but in this case the resistor must be so mounted that the bubble is located inside one of the platinum tubes 2, 3. The latter are wound with double wire 11, 12 with the free ends of the wire forming leads 13, 14 passing through holes 17, 18 in cupro-nickel end caps 15, 16.
Patent GB-1426732-A (GB)
Title: Stock tubes for machine tools
IPC: B23B13/08
Filed: 1972-04-12
Abstract: 1426732 Bar-stock feeding WICKMAN MACHINE TOOL SALES Ltd 6 April 1973 [12 April 1972] 16757/72 Heading B3B A tube for supporting stock in a machine tool comprises a rigid tube 10 within which are disposed a plurality of axially spaced apart, or abutting, sleeves 11 having their external surface in contact with the internal wall of the rigid tube and formed from non-metallic material to reduce noise. The non-metallic material may be plastics such as polyurethane or other polymers and plastics, or rubber. Individual sleeves may be spaced apart by spacer sleeves 12 which create a gap 13 which can be filled with a foam material. The spacer sleeves 12 may engage rebates in the sleeves 11. Chamfers 16 may be provided on the sleeves 11 at one or both ends to facilitate feeding stock. The tube 10 and sleeves 11, 12 may be longitudinally split and openable to provide lateral loading of stock.
Patent GB-795142-A (GB)
Title: Process for the preparation of salts of dithiocarbamic acids, having a low water solubility
IPC: C07F3/00
Filed: 1956-05-30
Abstract: Zinc dithiocarbamates of low solubility in water are obtained by reacting an aqueous suspension of zinc oxide or hydroxide with an aqueous solution of an ammonium dithiocarbamate, if desired in the presence of excess ammonia to get the product in a suitable physical form.  There may be present an anionic or non-ionic dispersing agent such as sodium lignin sulphonate.  The reaction temperature may be 10-40 DEG  C.  Examples are given of the preparation of zinc ethylene-bis-dithiocarbamate, in one case the ammonium salt being made in situ from ethylene diamine, carbon disulphide and ammonia.