baber/WOPTO huggingface dataset:
Patent GB-1039755-A (GB)
Title: Improvements in or relating to the manufacture of lacquers for polyurethane surface coatings
Inventor: CHAPMAN JOHN FREDERICK
IPC: C08G18/50
Filed: 1962-04-24
Abstract: A lacquer suitable for polyurethane surface coatings comprises an organic polyisocyanate, an inert organic solvent, and a mixture of hydroxyl-containing polymers of which 0.001-1 molar per cent is a polyether with two or more hydroxyl groups and two tertiary amino groups, each nitrogen being directly attached to an aromatic nucleus so that they are joined by a carbon chain containing an even number of carbon atoms, each of which is part either of an aromatic ring or a chain joining them and in conjugation with both aromatic rings. The polyether reacts to give a blue polyurethane which masks the yellow colour of the main body of polyurethane. Suitable polyethers may be formed by reacting ethylene oxide; 1,2-propylene oxide; 1,2- or 2,3-butylene oxide with N,N1 - dimethyl - p - phenylenediamine or N,N-dimethyl - p - phenylenediamine.  Preferably, they have molecular weights between 300 and 8000.  The other isocyanate-reaction compounds used may be polyesters, polyethers or polyhydric alcohols. In the example, a lacquer contains a polyester (8% hydroxyl content) from hexanetriol, phthalic acid and adipic acid; a solution of oxypropylated p-phenylene diamine in cyclohexanone and methyl isobutyl ketone; urea-formaldehyde resin; TiO2; and a polyisocyanate prepared from glycerol, diethylene glycol and 2,4-tolylimidiisocyanate.
Patent GB-687016-A (GB)
Title: Improvements in and relating to loose-leaf binders
Inventor: BROOKE-HUNT JOHN
IPC: B42B5/10
Filed: 1950-06-22
Abstract: 687,016. Loose-leaf binders. BURN & CO., Ltd., J. Sept. 1, 1950. [June 22, 1950] No. 15610/50. Class 146 (i). A loose-leaf binder having a binding element 12 in the form of a comb the teeth of which are formed of wire in the form of hairpins 18 side by side and connected at 20 at their open ends and bent into tube shape with a longitudinal slot, and means 14, 16 for positively securing the element 12 to the cover 10 with the slot closed and for releasing the element 12 so that it can be completely removed from the cover 10 to allow perforated sheets 22 to be replaced on or removed from the teeth 18. As shown in Fig. 2, the comb 12 is held to cover 10 by a sheet metal channel 14 having the sides bent over at 24 and secured to the cover by rivets 26, one of which has pivotally mounted on it a locking element 16 shown in inoperative position. The comb 12 is slid longitudinally, with the spine portion 20 and ends of the teeth engaging the parts 24 of channel 14, up to a stop at one end of the channel, the locking element 16 at the other end then being pivoted so that its cranked outer end 28 covers the open end of channel 14. As shown in Fig. 4, the comb 12 is held by a channel 14 having inwardly bent sides slotted to form hooks 30 and gaps 32, the spine 20 being engaged under the hooks 30 in one side and the ends of teeth 18 lying in the opposite gaps 32, the locking element 16 being in this case a strip with unturned end 34 and strengthening rib 36 which is slid directed under the hooks 30 so as to lie over and hold the spine 20 and the ends of the teeth 18. Specification 447,231 is referred to in the Provisional Specification.
Patent GB-939505-A (GB)
Title: Blades suitable for use in a hot fluid stream
Inventor: JOHNSON FRANCIS MURRAY
IPC: F01D5/28
Filed: 1962-04-24
Abstract: 939,505. Turbine blades. ROLLS-ROYCE Ltd. April 24, 1962, No. 15636/62. Class 110 (3). A blade suitable for use in a hot fluid stream has a leading edge 16 of ceramic material and metal trailing surfaces. In a gas turbine nozzle guide vane the trailing surfaces comprise a hollow metal part 17 and ribs 26 on the leading edge 16 are in contact with the part 17 to maintain a space allowing for differential expansion therebetween. Cooling air from the compressor enters the radially outermost portion of the blades from a manifold 29 and passes into the working fluid stream through slots formed between the leading edge 16 and the part 17. The leading edge 16 is made of silicon nitride and the blade ends fit into axial slots 21, 22 in flanges 23, 24 of the inner and outer concentric walls 11, 12 of the main turbine duct. The part 17 is welded into the slots and a flanged abutment is provided at the upstream end of the slots to position the leading edge 16. A metal tube may be mounted, either slidably or fixedly, longitudinally of the leading edge 16.
Patent GB-1497509-A (GB)
Title: Device for sealing the annular gap between the shield casing of a tunnel driving shield and a tunnel lining
IPC: E21D9/06
Filed: 1976-04-15
Abstract: 1497509 Tunnelling shields WAYSS & FREYTAG AG 15 April 1976 [11 Dec 1975] 15650/76 Heading E1F A device for sealing the annular gap 1 between the tail casing 2 of a tunnel driving shield and a tunnel lining 3, 3a comprises successive sealing elements 4, 6, 9 of which one sealing element 4, which has a seal 5 engageable with the rough irregular outer surface of the lining, is constructed to have a stationary relationship with the shield whilst another sealing element 6, which has seals 7, 8 engageable with the smooth inside face of the casing 2 and the rough, irregular outer surface of the leading portion of the lining after said portion has been constructed, has a longitudinal sliding relationship with the casing. Preferably the body of the sealing element 4 is located in the rear of the gap between the shield and the lining, is directly and rigidly secured to the tail of the shield and the seal 5 thereof is radially expandable when required to seal against the lining. The other sealing element 6 is so constructed that it may be moved longitudinally in the annular gap between the shield and the lining independently of and relatively to the shield when the shield is advanced. This movement of the sealing element 6 is caused by providing on each driving press 12 acting between the shield and the erected tubbings 3, 3a of the lining for stepwise advance of the shield relative to the erected lining a bracket 12a carrying a driver 12b having a stud 12c engaging in an elongated hole 12d located in a member 13 connected to an annular support ring 10 of the sealing element 6. The length of the hole 12d in the member 13 is such as to compensate for the difference between the travel of the presses 12 and the distance to be travelled by the sealing element 6. The seals 5, 7 may be inflatable hose that can be filled and expanded by a suitable medium against the lining, or elastic material which may be deformed by suitably provided means when required to engage the lining. The element 6 also includes a seal 8 slidably engaging with the inner wall of the shield and a bearing ring 11 to prevent tilting of the element in the gap when the seal 7 is applied. A sealing element 9 may be secured to the shield to the rear of the sealing element 4 for engaging with the lining 2 to keep out ground water, grout and the like. Provision may be made in the construction of the shield for filling the annular space between the sealing elements, the shield and the lining with a barrier medium, e.g. air, water or a bentonite suspension under pressure.
Patent GB-380410-A (GB)
Title: Centrifugal machine
IPC: D01D7/02
Filed: 1932-06-02
Abstract: A centrifugal machine has an enclosing flexible casing built on to the motor casing as described in the parent Specification, and at least that part of the casing which surrounds the drum or cage is constructed from an artificial resin with or without reinforcement.
Patent GB-110802-A (GB)
Title: A Crutch Supported Body Sling for Invalids.
Inventor: HUMPHRIES GARNET HENRY
IPC: A61H3/00
Filed: 1916-11-04
Abstract: 110,802. Humphries, G. H., and Biene, E. van. Nov. 4, 1916. Crutches.-The weight of the body is carried wholly or in part by means of a sling secured to the tops or handles of the crutches, thereby relieving the wearer's arms and arm-pits from strain. From a wide belt B, shaped to fit the waist, two slings C depend, each supporting two belts E, adapted to be fastened by buckles around the corresponding thigh. An elastic crosspiece G between the right and left lower leg belts prevents the wearer's legs from swaying unduly, and the various members of the sling are also united by means of side pieces J. a half-belt D, and back and front straps H. The whole structure is composed of flexible materials, such as webbing or leather, and is attached to the crutches by means of straps A carried over the top or handle and secured at the ends either to the side pieces J or to the crutches. The thigh belts may be modified in cases of paralysis or amputation of lower limbs, and, if both are wanting, a central stick or artificial leg is secured to the sling.
Patent GB-136774-A (GB)
Title: Improvement in Furnace Regulation.
Inventor: GIBSON GEORGE HERBERT
IPC: F23N3/02
Filed: 1919-06-23
Abstract: 136,774. Gibson, G. H. June 23, 1919. Drawings to Specification. Reverberatory furnaces.-Relates to the regulation of the ratio between the primary and secondary air supplies and in some cases the fuel, and in connexion with one application the combination of a reverberatory reduction furnace with a steam generator furnace is described, the arrangement being that the partially burnt products from the former receive additional or secondary air and fire the latter,
Patent GB-476249-A (GB)
Title: Improvements in nut and bolt structures for the securing of members
IPC: F16B37/06
Filed: 1936-06-05
Abstract: 476,249. Bolting. ELASTIC STOP NUT CORPORATION. June 5, 1936, No. 15816. Convention date, June 27, 1935. [Class 89 (i)] Nuts 22 are held in a strip member 10 of channel section, the nuts being spaced by projections 30. The strip is secured to one of the members to be joined by rivets 48 passing through holes 40, and the nuts are thus held in the desired position. The nuts have fibre inserts in the conical extensions to render them self-locking.
Patent GB-233191-A (GB)
Title: Improvements in and relating to the arrangement and disposition of ships' screw propellers
IPC: B63H5/16
Filed: 1924-07-01
Abstract: 233,191. Gebers, F. July 1, 1924. Propeller shafts, arrangement of. - A ship is fitted with both fully and semi-submerged propellers. When an odd number of semi-submerged propellers is used, one of them is constructed as a counter-propeller or is fitted with separate guide apparatus. The semi-submerged propellers can also be arranged so that the blade circles intersect. Two semi-submerged propellers 2, 3 are arranged behind a flat vertical stern 1, and a fully submerged propeller 6 is arranged beneath the stern its shaft 7 being carried in a fin bracket 8. With all propellers working at high speed the tail water is at level A, and when cruising with propeller 6 only the tail water is at level B.
Patent GB-789613-A (GB)
Title: Improvements in or relating to magnetic recording media
Inventor: DUTTON GILBERT FARADAY
IPC: G11B5/845
Filed: 1955-06-02
Abstract: 789,613. Magnetic dust structures. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 1, 1956 [June 2, 1955], No. 15829/55. Class 38 (2). A magnetic recording medium is made by discharging on to a thin film 1 of material such as polyvinyl chloride, cellulose-acetate or polyester resin, a coating of magnetically anisotropic magnetic particles in a binder rendered fluid by a solvent. After forming a free loop 8 the coated support 1 travels with its uncoated face adjacent a magnetic pole 11 having a knife edge form to concentrate the flux. This magnetically orientates the particles which are fixed in position when, after being driven by belt 12 over rollers 13, 14, the tape passes through drying chamber 16, where hot air passes in and out at ports 17, 18, respectively. The film 1 is held against the knife edge, and belt 12 by vacuum boxes 9, 10 and 15. The support 1 which may be 14 inches wide and 0.001 inch thick and coated with a layer 0.0005 inch thick, of acicular gamma, ferric oxide particles 0.5 Á by 0.08 Á in size, is then cut into strips of suitable width such as “ inch. The knife-edge of the pole may be rounded and not. sharp and longer than the support is wide. It may be formed by chamfering the pole of a permanent or electromagnet, or on a separate polepiece attached to the pole. A number of spaced knife-edged poles may be employed, e.g. two at the ends of a horse-shoe magnet.
Patent GB-151370-A (GB)
Title: Improvements in housings and casings for electrical switch gear
IPC: H02B1/30
Filed: 1919-06-24
Abstract: 151,370. Breeze, V., and West & Co., A. June 24, 1919. Corner joints; covers.-A casing for electric motor controllers, electric switch gear, &c. consists of a sheet-metal body 1 and end-plates 3 which are dished, the flanges 4 being outwardly splayed. Cover-plates 5, 6 are placed over the end-plates and the whole assembled by through bolts, the splayed flanges being straightened as they are drawn against the body 1. Suitable openings are made in the walls of the casing for the control handles &c.
Patent GB-357605-A (GB)
Title: Improved means applicable for use in the evaporation, concentration or condensation of fluids or liquids
IPC: F28D9/00
Filed: 1930-05-24
Abstract: 357,605. Plate heat exchangers. SELIGMAN, R., 51, Parkside, Wimbledon, and ALUMINIUM PLANT & VESSEL CO., Ltd., Point Pleasant, Wands worth, both in London. May 24, 1930, No. 16057. [Class 64 (iii).] In plate apparatus for evaporating, concentrating, or condensing fluids, of the kind comprising plates having ribs or internal partitions forming passages for the treated fluid and the heating medium, as described in Specifications 223,033 and 225,109, [both in Class 64 (iii), Surface apparatus &c.], each plate is formed with free spaces a, b, Fig. 1, at the top and bottom to provide, when the plates are assembled, inlet and outlet channels respectively for the liquid to be treated and the heating or cooling liquid. The liquid to be treated flows from the inlet to the outlet channels through passages d between the plates. These passages may be divided by vertical ribs d<1> on the plates. The heating or cooling medium flows from the inlet e through sinuous passages formed by partitions c<1> in the plates to the outlet f. The sinuous passages may decrease in area towards the direction of flow of the heating medium. Concentrated liquid may be conducted from the upper channel b back to the lower channel a. In an apparatus for treating a liquid in stages, series of plates are divided by a plain plate n. Fig. 14, and concentrated liquid is conducted from the upper channel of one series through a return passage l in a plate i to the lower channel of the next series. A plate k intermediate the stages is so formed as to allow vapour to pass from the first stage of concentration into the heating passages of the next stage.
Patent GB-1473011-A (GB)
Title: Drying apparatus
IPC: G03D15/02
Filed: 1974-04-11
Abstract: 1473011 Drying photographic paper ILFORD Ltd 17 March 1975 [11 April 1974] 16082/74 Addition to 1369298 Heading F4G The apparatus described in Specification 1,369,298 for drying cut sheets of processed photographic paper and giving them a high gloss is modified by having the open support at two levels connected by a curved portion, the level nearer the entrance to the apparatus being below the level of the pair of feed rollers so that incoming sheets do not touch the support until they reach the curved portion. This arrangement reduces the occurrence of shadow marks on the dried sheets.
Patent GB-612638-A (GB)
Title: Improvements in shuttles for looms for weaving
IPC: D03J5/08
Filed: 1946-05-28
Abstract: 612,638. Loom shuttles. KIRK & CO. (BLACKBURN), Ltd.. and WRIGLEY, H. May 28, 1946, No. 16142. [Class 142(iii)] Means for maintaining the correct alignment of the shuttle tongue comprise a spring plate A secured to the rear of the upper surface of the head C of the tongue, the plate A having lateral extensions at its front which engage the bobbin clips C when the tongue is turned down into the weaving position, and being acted on by an adjustable screw D passing into the head of the tongue. In a modification, Fig. 5 (not shown). the spring plate is secured to the rear of the under surface of the head of the tongue.
Patent GB-726617-A (GB)
Title: Bag bottom shaping device
IPC: B31B29/00
Filed: 1953-06-11
Abstract: 726,617. Making bags. ST. REGIS PAPER CO. June 11, 1953 [July 11, 1952], No. 16154/53. Class.94 (2). The apparatus described in Specification 706,860 is provided with an improved tube end spreader means for forming the bag bottom. Flattened bag tubes which are fed by a conveyer 27, are slit at the ends and suitably scored, and have the ends bent up at right angles to the main body of the tube. The tube ends are then opened by a suction device and the tube is fed to the spreader unit which comprises pairs of spreader arms 32a, 32b, pivotally secured between a pair of endless chains 33a, 33b. A pivotally mounted, grooved guide, comprising a horizontal portion 34a, and inclined portions 34b, 34c, co-operates with follower arms 40, 41 which are fixed to the arms 32a, 32b, which are thus moved linearly with the bag tube and simultaneously moved angularly to fold the bag bottom. A plurality.of pairs of spreader arms may be mounted on the chains 33. The centre guide portion 34a is movable in a vertical direction to engage the spreader tips 72 simultaneously with the tube end corners, by means of bell cranks 83 and 84, which are interconnected by a rod 89, adjustable by means of a turnbuckle 90, a follower 94 on one arm of the bell crank 84 co-operating with a cam 91. The spreader arms 32a, 32b, have additional follower arms 61, 62 respectively, which co-operate with a further guide member 35 provided with arcuate portions 35a, 35b. Retractible spreader fingers 65, 66, Fig. 6, are pivotally mounted between the bifurcated end 32b<SP>1</SP>, 32b<SP>11</SP> of each spreader arm, by means of pins 67, 68, angular movement being restricted to about 15 degrees by a spring-loaded stud 69 having a conical tip engaging in a recess in the frame 64. The fingers 65, 66 are connected through links 76, 77 to the frame 64, and are pivotally connected at 65a, 65b to a member 72 which is attached to a spring-loaded plunger 73 movable axially in the frame 64. The spreader fingers are initially retracted, but when the device is inserted in the open end of the bag tube and the tip 72 engages the corner thereof the movement of the arm 32b forces the frame 64 to the right and spreads the fingers 65, 66, to form the corner and side flaps for the bag bottom. To return the spreader arms 32a, 32b to their initial unspread condition prior to their withdrawal from the tube end, an arm 96 connected to the bell crank 86, co-operates with a cam 92, a pair of guides 97, 98 holding the spread tube end while the arms are withdrawn. The spreader unit is adjustable to accommodate different sizes of bag tubes. Specification 677,256 also is referred to.
Patent GB-568474-A (GB)
Title: A pastry cutter with rotating disc cutters
IPC: A21C5/00
Filed: 1943-10-02
Abstract: 568,474. Cutting pastry. TRACY, J. W. Oct, 2, 1943, No. 16174. [Class 5 (i)] [Also in Group VIII] A pastry cutter comprising one or more rotary discs 7 is constructed with spindles 8 held in bushes 9 or resilient members formed of two round steel wires 10 braced by a clip 14 and anchored to a clip 11 by means of which the cutters can be adjustably secured to a flat bar 4 attached to a frame 1 secured to a handle 3, wing nuts 13 engaging screw studs 12 passed through holes 5 in the bar 4. More than one disc 7 may be secured to the bar, and the distances apart of the discs may be adjusted so that pastry strips of different widths can be cut. The upward movements of the wires 10 is limited by a bar 15 secured to the frame 1.
Patent GB-788500-A (GB)
Title: Improvements in chain or belt tensioning devices
Inventor: BAYLISS CECIL THOMAS
IPC: F16H7/08
Filed: 1956-05-25
Abstract: 788,500. Belt and chain tensioning. PERRY CHAIN CO., Ltd. June 8, 1956 [May 25, 1956], No. 16192/56. Class 80 (1). In a belt or chain tensioning device comprising a spring-loaded piston 1 carrying or actuating a slipper 2 or a jockey wheel engaging, for example, a valve timing chain 3 of an internal combustion engine, oil or other liquid fed to the cylinder 4 housing the piston 1 functions as an hydraulic ratchet to prevent any appreciable return movement of the piston from a position set by the spring 9, but allows small return movements to account for impacts due, for example, to eccentric mounting of a sprocket or pulley. As shown, the piston 1 is hollow and open-ended, and the cylinder 4 communicates with a reservoir 6 by one or other of a number of apertures 8 in the piston which, as the latter is moved outwardly, successively register with a hole 7 in the reservoir. At any position of the piston the space behind it is thus maintained full of oil which prevents any appreciable return movement. Under impact on the slipper 2, however, the piston may be forced back to a small extent determined by the amount of oil which can escape through the aperture 8 adjacent the hole 7 before the hole is closed by the piston movement. The apertures 8 shown are forced by a number of deep raw cuts ensuring registry with the hole 7 even if the piston turns on its axis. In a modification the apertures 8 are formed as holes in the piston and the hole 7 is replaced by an arcuate slot in the bottom of the reservoir extending partly around the piston. In other constructions a single aperture in the piston coacts with a number of apertures in the reservoir. The block 5 containing the open reservoir 6 shown may be secured to an engine crankcase so that it is splash fed to maintain the oil level, and a hood 11 may be provided to intercept any spurts of oil from the hole 7. Alternatively, the reservoir 6 may be closed and be fed thrcugh conduits; it may then be secured in any position. Instead of carrying the slipper 2 the piston 1 may press against a slipper hinged to a fixed support. In further constructions a jockey wheel is rotatable on a carrier surrounding a block corresponding to the block 5, the carrier being slidable on guides supported by the block and being acted upon by a spring-urged piston. The single piston may be replaced by a pair of pistons sharing a common reservoir, the jockey wheel then having one, two or three rings of teeth. It is also stated that a slipper or slippers may be carried by a pair of pistons sharing a common reservoir.
Patent GB-828566-A (GB)
Title: Improvements in or relating to cell-type liquid decanting devices and decanting tankderiving therefrom
IPC: B01D21/00
Filed: 1957-05-22
Abstract: 828,566. Gravity-separation apparatus. COMPAGNIE DES MACHINES BULL. May 22, 1957 [May 28, 1956], No. 16223/57. Class 46. Open-topped baffled tanks 1 to 1<SP>11</SP> are stacked vertically with their drain holes 9 to 9<SP>11</SP> at opposite ends alternately upon a mobile bottom tank 14 whence liquid from a liquidsolid mixture introduced at 8 (e.g. machine-tool coolant) is withdrawn through a strainer 18 by a pump 15 and returned to the machine tools by a delivery pipe 19.
Patent GB-968626-A (GB)
Title: Filtration plant
Inventor: AUSTIN CYRIL ERNEST
IPC: B01D33/00
Filed: 1962-04-27
Abstract: 968,626. Filters. AUSTIN-IBIS DEVELOPMENTS Ltd. April 27, 1962, No. 16270/62. Addition to 965,274. Headings B1D and B1T. The separated solids and washing liquid delivered from a tray 10, as in the parent Specification, are subjected to a second filtration process, passing into a tank 23 having a wire gauze filter screen 24 and outlet 25. The tank is supported on lever arms held up by springs (not shown), so that when the weight of lint in the tank reaches a predetermined value, a micro-switch is closed to operate a visual or aural warning. This will also accur should the drum 1 stop rotating and become clogged on its lower surface, so that the level of liquid in the drum rises, and liquid overflows into the tank. Blades 30 fitted to the interior of the drum assist in lifting off the lint so that it drops into the tray 10.