baber/WOPTO huggingface dataset:
Patent GB-756733-A (GB)
Title: Improvements in and relating to grabs
IPC: E02F3/47
Filed: 1953-01-28
Abstract: 756,733. Grab-buckets; opening and closing mechanism. BARNARD, D. E. B., and BARNARD, E. G. Jan. 27, 1954 [Jan. 28, 1953], No. 2441/53. Class 78 (4). A sliding motion between a single rope grab and the hooks 17, 18, Fig. 1A, by which it is supported from an opening crown 19 increases the opening effort on the buckets. As shown in Fig. 1A the lower beam 9 to which the buckets are pivoted at 8 is raised to close the grab by ropes 39 wound on drums 16 secured on opposite sides of a drum 12 on which is wound the closing rope 13. The anchorages 41 for the ropes 39 are welded to plates 42 sliding in guides 42x on the head 3 and connected to pins 21, 28, Fig. 4, by which the hooks 17, 18 are mounted to slide in slots 22, 29 in the head. Thus when the grab is suspended by the hooks 17, 18 from the crown 19 and the closing rope 13 slackened the head 3 and the remainder of the grab fall relatively to the hooks and the anchorage 41 to provide an increased opening effort in the rope 39. The rope 39 passes between the drums 16 by way of an aperture in the drum 12. A guide pulley 30 for the closing rope 13 is carried by the pin 28. A foot 24, Fig. 4, bolted to the hook 17 carries rollers 25 for guiding the rope and is formed with a toothed slot 26 engaging a tooth 27 on the hook 18. The drum 16 may be geared to the drum 12 instead of integral with it. In a construction employing only a single hook 17 the anchorage 41 slides with this hook relatively to the head and the pulley 30 is supported by a bracket from one of the spreader arms 4. In the construction of Fig. 6 the pins 21, 23 are pivoted to fixed points in the head 3 which is mounted by slots 6x to slide on the pivot pins 6 of the spreader arms 4 and carries a block 49 forming part of a purchase by which chains 44 raise the lower beam to close the grab. Pocket wheels 46 guide the lifting chain to a pocket wheel 47 by which a pocket wheel 51 forming part of the purchase is rotated. To avoid the use of a button on the closing rope a member 20, Fig. 4, sliding on the shank of the pin 17 is disposed so that when the flange of the crown 19 engages beneath it, it shields the hook 17 so that the crown pushes the hook aside as the grab is lowered. The grab is locked open by a pair of parallel links 35, Fig. 1A, pivoted at 36 to the bucket 2 and guided by links 33 to bring a pair of teeth 37 into engagement with notches 38 in the drum 12 when the buckets are fully open so that the drum is held against rotation in the direction to close the buckets. The drum 12 is mounted in blocks 15 sliding in vertical guides 11 at opposite sides of the lower beam 9 so that when the rope 13 is slackened with the grab resting on the ground the drum 12 descends in the guides 11 to clear the catch 37 and permit the drum to be rotated to close the grab.
Patent GB-555761-A (GB)
Title: Improvements relating to the protection of films of cellulosic materials against attack by bacteria, mould and the like
Filed: 1942-02-26
Abstract: 555,761. Protecting cellulosic films against attack by bacteria &c. VISCOSE DEVELOPMENT CO., Ltd., Feb. 26, 1942, No. 2512. Convention date, Jan. 17, 1941. [Class 140J Cellulosic films such as shrinkable caps or bands of regenerated cellulose used as secondary closures on bottles &c. usually stored in gel form in liquid-tight containers containing water and a softening agent such as gelatine, are protected against bacteria, mould &c. by impregnation with a phenyl biguanide of the general formula where R represents hydrogen or alkyl, e.g. by adding the preserver to the softening solution. The biguanide shown may have a substituent in the benzene ring, e.g. a CH 3  group in the orthoposition. Other suitable biguanides are described in Specification 548,876, [Group IV]. Films thus protected may also be stored in the dry state. Low-substituted cellulose ethers &c. which are precipitated from aqueous or aqueous alkaline solutions or dispersions may be thus protected. A sample composition for an impregnating and storage solution is glycerol 8 per cent., phenyl biguanide .25 per cent., disodium phosphate dodecahydrate 1.31 per cent., water remainder. Specifications 2880/05, [Class 2]. and 405,575, [Group IV], and U.S.A. Specifications 1,647,439, 2,164,505 and 2,179,571 also are referred to.
Patent GB-1339403-A (GB)
Title: Timepiece
IPC: G04G99/00
Filed: 1972-01-19
Abstract: 1339403 DC-DC converters STTWASEIKOSHA KK 19 Jan 1972 [3 Feb 1971] 2576/72 Heading H2F [Also in Divisions G3 and H3] In a time-piece such as a wrist-watch driven from a vibrator such as a tuning fork 1 and having a liquid crystal display element 10 under the control of a signal 12 from a frequency divider (not shown), means such as a transformer 8, 9 is provided to step up the voltage to that necessary for driving the liquid crystal display 10. In the example shown, a piezoelectric detector 2 has its output amplified by a transistor 6 to provide a pulsed D.C. output to the transformer 8, 9 which supplies current to both a piezo-electric vibrator 3 for the tuning fork 1 and to the liquid crystal display 10. A modified system is referred to in which a quartz crystal vibrator is used in place of the tuning fork whereby the size of the transformer may be reduced.
Patent GB-760797-A (GB)
Title: A pack or wrapper for sausage casings
Inventor: WHITE FREDERICK GEORGE
IPC: A22C13/00
Filed: 1953-01-29
Abstract: As a pack or wrapper for sausage casings of animal origin there is used an impermeable foil, e.g. a foil of polyethylene containing a coloured or non-coloured substance capable of reducing appreciably the transmission of ultra-violet light of wave length 1800-2500   and present in quantity sufficient to give a cloudy appearance to the foil without preventing visibility of the enclosed casings.  Suitable substances are titanium dioxide and Monastral Fast Blue.
Patent GB-1378572-A (GB)
Title: Photochromic image forming process
IPC: G03G13/08
Filed: 1972-01-19
Abstract: 1378572 Toner/photochromic images: photoconductive member FUJI PHOTO FILM CO Ltd 19 Jan 1972 [19 Jan 1971] 2663/72 Headings G2C and G2H A coloured image is produced by charging a photo-conductive member containing photoconductive and photochromic material, imagewise exposing to radiation to which the photochromic material is insensitive, developing with toner which modifies or masks the photochromic compound and exposing to ultraviolet light. The photo-conductive member may have a coating comprising a photo-conductive resin and 0À1-10% of a photochromic compound based on the resin. The photo-conductive resin may be polyvinyl naphthalene, anthracene, diphenyl, fluorene, acenaphthalene, pyrene, naphthacene, perylene, carbazole, phenothiazine, acridine, benzofuran, pyrazoline, oxazole or fluorene or polyacryloylcarbazole. The photochromic compound may be of the general formula: wherein R<SP>1</SP> represents an alkyl radical having 1-5 carbon atoms, a carboxyl-, cyano- or estersubstituted alkyl radical or a phenyl radical, R<SP>2</SP> and R<SP>3</SP> each represent alkyl radicals having from 1-5 carbon atoms or phenyl radicals or together represent the group -(CH 2 )-n where n is 4 or 5, X represents a hydrogen or halogen atom or a nitro, alkoxy, hydroxycarbonyl or alkoxycarbonyl group or an alkyl radical having 1-5 carbon atoms and Y represents one or more of any of a hydrogen or halogen atom or a nitro, aldehyde or alkoxy group. Development may be with (a) a resin which hinders colour-development of the photochromic compound, (b) a resin which colourdevelops upon contact with the photochromic compound in the absence of light, (c) a mixture of a resin and a more polar compound, which mixture colour-develops upon contact with the photochromic compound and exposure to light, or (d) a coloured resin. Superimposed development may be effected using two or more of the above developers. Resin (a) may be polyvinyl chloride, polyvinylidene chloride, vinylchloride/ vinyl acetate copolymer, polyhydroxy methacrylate or polyvinylpyrrolidone. Resin (b) may be cellulose acetate, ethyl cellulose, cellulose acetate butyrate or cellulose acetate phthalate. Resin (c) may be polystyrene, polyvinyl acetate or polymethacrylic acid ester. The more polar compound may be phthalic, benzoic, nitrobenzoic, chlorobenzoic, oxybenzoic, salicylic, toluylic, naphthoic, anthranilic, anisic or picric acid or nitrophenol, naphthol, chlorophenol, oxyacetophenone, resorcin, hydroquinone or oxybenzophenone.
Patent GB-629528-A (GB)
Title: Improvements in or relating to furnace or like walls or linings
IPC: F27D1/00
Filed: 1946-01-28
Abstract: 629,528. Furnaces. FOSTER WHEELER, Ltd., and SAMPSON, W. Jan. 28, 1946, No. 2702. [Class 51 (i)] Bricks 1, 2 and 3 in a furnace wall construction intended particularly for boiler walls are formed with juxtaposed grooves 7 and 9 in which is a locking key 6 which also cooperates with the extending lip 5 of weight supporting brackets 4 said brackets being clamped by cotter pins 16. Each groove 7 is made deep enough to accommodate the key 6 clear of the brick below so that a brick may be replaced without disturbing adjacent bricks. The bricks are clamped against relatively soft insulating material 11 a harder insulating layer 12 separating the whole from the outer casing 13.
Patent GB-236478-A (GB)
Title: Improvements in and relating to kettles
IPC: A47J27/21
Filed: 1925-01-30
Abstract: 236,478. Petrie, K. C. Jan. 30, 1925. Kettles; lids and covers.-The top 1 of a kettle fits detachably within the upright sides of the body, the engaging spigot part 2 being separately formed and secured to the top by a beaded or rolled joint. The spout passes through a hole 6 formed in the front end of the handle 5.
Patent GB-534398-A (GB)
Title: Improvements in and relating to smokers' ash-trays
IPC: A24F19/00
Filed: 1939-12-14
Abstract: 534,398. Smoker's ash-trays. REID, J. Dec. 14, 1939, No. 2797. [Class 130] Grooves 4 for cigarette rests are formed in a bowl 2 upstanding from the base of a polygonal receptacle 1, the distance from the bowl to the rim and also the depth of the intervening space being greater than half the length of an ordinary cigarette. At each corner the outer wall is inclined upwardly and outwardly.
Patent GB-556466-A (GB)
Title: Improved portable hoist
IPC: B66C23/36
Filed: 1942-03-03
Abstract: 556,466. Hoists. STANHAY, Ltd., and GOLDUP, C. E. March 3, 1942, No. 2813. [Class 78 (iii)] A hoist comprises a framework a, a crane jib d pivoted thereto at d<SP>1</SP>, and a fluid pressure operated piston-rod l connected by linkage k, h, g to a point near the top of members f extending upward from the jib rear. A compressor o supplies air to reservoirs n from which it is passed to the operating cylinder m by way of a foot-controlled valve p. A counterpoise may be fitted, or the cylinder m and reservoirs n may be located so as to fulfil this function. In order to prevent sudden fall of the jib and load in the event of a break in the air pipe &c. or to support them for a prolonged period, a toothed quadrant r may be fitted, engagable by a pawl r<SP>1</SP> in case of emergency either manually or automatically. An automatic means comprises bails r<SP>4</SP> normally pressed up by the air pressure to raise the weighted rear end of the pawl r<SP>1</SP> and disconnect the pawl from the teeth. When the air pressure sinks the pawl engages the teeth and supports the load. A modified form is shown, representing a larger construction of jib &c. relative to a tractor engine b, and fitted with pressure gauges connected to the cylinder m and reservoirs n respectively. The hoist may be statically mounted, and may be furnished with a turn-table.
Patent GB-777420-A (GB)
Title: Improvements in or relating to variable speed gearing
Inventor: DENT KENNETH HENRY
IPC: F16H3/00
Filed: 1951-02-06
Abstract: 777,420. Motor driving arrangements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 29, 1952 [Feb. 6, 1951], No. 2870/51. Class 35. [Also in Group XXIV] A variable speed gear, particularly for moving the electrodes of a reactor in either direction, comprises a driven sun wheel meshing with a planet gear rotatable on a carrier, another gear wheel fixed to rotate with the planet wheel and meshing with an output gear, a mechanical free wheel device between the input shaft and the carrier the latter being restrainable electromagnetically. As shown, the drive to the worm 6 for the forward direction of motor 1 with unity ratio is through free wheel 4 (rollers 7 on wedges 8 press on member 9) rotating carrier 10 of studs 16, 17 for gear wheels 20, 22 driving worm 6 through pinions 21, 23 and gear 24. For reverse rotation coil 29 is energized acting as a brake on the toothed member 14 attached to carrier 10 so that the drive to gears 20, 22 is through pinion 5 and the ratio is 1-10, free wheel 4 being inoperative. Worm 6 drives another worm 36 through worm wheel 90 and gears 93, 94 and the drive to the second epicyclic train and hence gear 61 on the output shaft 40 is via worm wheel 37 and pinion 37a. In the epicyclic train carrier 43 is normally held stationary by energizing braking coil 53 held in the stationary pole pieces 54, 55. Should shaft 40 be prevented from rotating carrier 43 would rotate by gears 58, 60, moving around gear 61, slip occurring at the 52, 54, 55. If a drive is applied to shaft 40 from its output end, e.g. by a pulley on spline 62 and coil 53 is de-energized, the shaft 40 rotates and drives carrier 43 so that gears 57, 59 revolve about pinion 37a held by irreversible worm wheel 37. The position of shaft 40 is given by magslip 63 when being driven by gear 61 and by magslip 72 when driven directly from spline 62. Specification 777,421 is referred to.
Patent GB-487611-A (GB)
Title: An improved machine for cutting spectacle lenses, watch glasses and like pieces of glass in accordance with a pattern or former
IPC: C03B33/04
Filed: 1937-02-01
Abstract: 487,611. Cutting or dividing glass. JORDAN, A. T., and LEVER, P. Feb. 1, 1937, Nos. 2883 and 33687. [Class 56] Relates to a machine for cutting-out spectacle lenses, watch glasses, or other shapes from a piece of glass clamped on a table which can be rotated, relatively to a glass cutter, a template being arranged to rotate synchronously with the work table and to guide a feeler that moves the cutter. According to the present invention, the template is supported on a spindle separate from that carrying the work table, and is attached to its spindle without clamping-nuts or screws so that it can be changed readily for another. For this purpose, a vertical spindle 14 terminates in a central spigot 54 and has one or more offset pins 55 which engage in corresponding holes formed in the templates 16. The work table 15 is carried by a vertical spindle 13, and the spindles 13, 14 are rotated in unison with one another by a handle 20. The spindle 14 is journalled in a carriage 21 which can be moved along guides 22, to and from the table 15, by a graduated handwheel 26 to vary the size of the article to be cut out of the work piece. The table 15 is faced with rubber 27, and the spindle 13 is hollow and accommodates a counter - pressure rod 28. A clamping-member 29 is carried by a pivoted arm 30 and is swung to and from the table 15 by a cam 31 rotated by a hand wheel 32. The arm 30 and the cam 31 are both pivoted on a vertical shaft 33 the lower end of which carries a bracket 34 that supports the counterpressure rod 28. Thus when the member 29 is lowered, the rod 28 is lifted simultaneously and the pressure on the two sides of the glass on the table 15 is balanced. A cutter 38 is pivoted on an arm 37 which also carries a pivoted feeler 39 that engages the template 16. The cutter and the feeler carry cranks which are connected by a link 42 in order to direct the cutter in accordance with the movement of the feeler. The arm 37. is pivoted to levers 43 which, in turn, are pivoted to the carriage 21, and a hand lever 45 enables the cutter to be swung in a vertical plane. When the lever 45 is depressed, the feeler 39 is moved into contact with the Lemplate 16, and continued movement of the lever brings the cutter into contact with the glass on the table 15. The handle 20 is then rotated to rotate the table 15 and the template.
Patent GB-1015331-A (GB)
Title: Improvements in plaster mixing
Inventor: TAYLOR JOHN BORIS
IPC: C04B28/14
Filed: 1963-01-23
Abstract: Plaster mixes are prepared by gauging a cementitious calcium sulphate type plaster in a spray pelletizer and forming the moist pellets under pressure into a desired shape before setting.  The plaster may be calcium sulphate hemihydrate and/or anhydrite.  The plaster mix may include a lightweight aggregate e.g. expanded polystyrene, Portland cement, lime, hydrated lime, pulverized fuel ash and a setting retarder or catalyst e.g. keratin or potassium, zinc or aluminium sulphate.
Patent GB-550168-A (GB)
Title: Treatment of cellulosic materials regenerated from viscose and similar cellulosicaterials
IPC: D06M13/148
Filed: 1941-03-04
Abstract: 550,168. Artificial, filaments, films &c. proofing cellulosic materials against fire and chemicals. POSNER, W. March 4, 1941, Nos. 2955 and 2956. [Class 2 (ii)] [Also in Group VIII] Cellulosic materials, such as sheets, foils, or threads, regenerated from viscose are rendered soft and pliable and also fire-resistant by treating them, while still wet from the precipitation process and subsequent washing, with a solution of boric acid in aqueous triethanolamine with or without a proportion of glycerine. In order to render the materials also resistant to the corrosive action of war gases such as mustard gas, they may be treated with a drying oil, an oxidized drying oil acid, a fatty acid from a boiled drying oil, an acid from a semi-drying oil, or an unsaturated fatty acid. In examples, regenerated cellulose sheets are treated while in freshly-produced wet condition with alkaline solutions containing boric acid, triethanolamine, glycerol, and linseed oil fatty acids. The boric acid may be present in the solution partly in the form of an ester of triethanolamine. The solution may be prepared by heating boric acid with the triethanolamine until a clear solution is obtained and then diluting with water. The cellulosic material may be treated, before or after the application of the boric acid solution, with a solution of tin chloride to increase the fire-proofing effect. After drying, the treated sheets may be coated with waterproofing compositions containing natural or synthetic resins, drying oils, varnishes, or chlorinated rubber. The first Provisional Specification refers also to the use of perboric acid, or perborates, instead of boric acid. The second Provisional Specification describes also a fireproofing treatment in which boric acid is omitted. The sheets are treat ed with a solution of triethanolamine and drying or semi-drying oils or their fatty acids, and subsequently with tin chloride. Instead of. triethanolamine there may be used glycerol, e.g. in the form of a glyceroboric ester.
Patent GB-1078081-A (GB)
Title: Structural beams
IPC: E04B9/12
Filed: 1965-01-22
Abstract: 1,078,081. Suspended ceiling grid; connecnections for beams. DONN PRODUCTS, Inc. Jan. 22, 1965 [Dec. 7, 1964], No. 2980/65. Headings E1K and E1W. In a beam structure, which in the exemplified embodiment forms part of a suspended ceiling, each transverse beam 2 has a web 3 which at at least one end is provided with a tongue 12 having a portion 14 bent out of the plane of the web 3, a marginal edge portion of the tongue portion 14 being overlapped by a hook like portion 29 projecting from one side of the web 19 of a main beam 18. A detent on the web 19 engages an indentation 37 in the tongue portion 14. The beams 2, 18 have bilaterally extending flanges 6, 23, the end of the flange 6 being joggled to engage the flange 23 so that the bottom surfaces of the flanges are coplanar. Projections 29 are formed at slightly relatively displaced positions on opposite sides of the web 19 and such opposed pairs of projections are provided at intervals along the web 19. The tongue portions 14 at opposite ends of the beams 2 are bent out of the plane of the web 3 to point in opposite directions.
Patent GB-146041-A (GB)
Title: Improvements in and relating to electric motor controllers
IPC: H02P1/20
Filed: 1919-12-05
Abstract: 146,041. Galer, C. R. Dec. 5, 1919. Master control systems; electric braking.-In a motor control system having one or more " lockout " contactor switches and corresponding resistance steps, arrangements are made whereby the set of contactor switches and resistance are connected in one of two alternative circuits, of which the first determines progressive acceleration of the motor and the other determines progressive braking. The arrangement shown comprises a shunt-wound motor A, three contactor switches 5, 6, 7, and three resistance sections R<1>, R<2>, R<3>. When the operator momentarily closes a pushbutton switch 17, an electro-magnet 18 is energized to close a main switch M. The contactors and their windings and the resistance sections are thus connected to the motor A and the lines L', L<2>, forming the first of the alternative circuits referred to above. As the motor starts and speeds up, resistances are successively cut out. The last-closing contactor 7 short-circuits the series windings of all the contactors and is itself held on by a shunt-coil 14. To stop the motor, the operator momentarily opens a push-button switch 23, de-energizing the electro-magnet 18. The main switch then assumes the position shown in the Figure, where it connects the motor, resistances, and contactors in a braking circuit by way of a conductor 3 leading to a tapping terminal on the resistance R<3>. This forms the second alternative circuit. The tapping point is so chosen that the current in the braking circuit is greater than the maximum current at which the contactors close. They begin to close when the motor slows down to a determined speed and thereafter act progressively in the same order as before. Specification 22435/14, [Class 38 (v), Electric switches &c.], is referred to.
Patent GB-111773-A (GB)
Title: Improvements in or relating to Hinges for Swinging Closures such as Doors, Lids, and the like.
Inventor: BLANEY WILLIAM THOMAS
IPC: E05F1/12
Filed: 1917-03-02
Abstract: 111,773. Blaney, W. T. Maxch 2, 1917. Hinges.-The door &c. 3 is mounted to turn to some extent on the pintle 9 under the control of yielding means such as a helical spring 23 which is connected at one end 25 to one of the hinge straps 5 and at the other, 24, to the pintle. The pintle is mounted by eccentric extensions 11 to turn in barrels 12, 15 fixed to the wall, &c., and is operated to open and close the door by a handle 18. When closing the door, the spring transmits the effort under normal tension until the door contacts with the face of the opening. Further rotation of the handle 18 causes, by the excentrio arrangement, a sliding of the door on the facing until its swinging edge engages in a recess 22 to lock it in position, the spring 23 yielding to allow of this movement.
Patent GB-856530-A (GB)
Title: Improvements in hermetically sealed couplings
Inventor: MUNRO ROBERT
IPC: F16J15/52
Filed: 1959-01-29
Abstract: 856,530. Linkwork. MUNRO, R., and KINGSBURY, W. G. March 18, 1959 [Jan. 29, 1959], No. 3179/59. Class 80 (3). , In couplings of the type in which rotation of one shaft 3 is transmitted to an aligned shaft 4 through a mutating pin 7, 8 secured at its centre to a flexible diaphragm 2, a backing plate 9 is provided to support the diaphragm against the pressure difference across it and which is provided with teeth 12 meshing with a bevel gear 13 on the pin 7, 8 to prevent any tendency for the said pin to rotate. Specification 705,038 is referred to.