baber/WOPTO huggingface dataset:
Patent GB-318110-A (GB)
Title: Improvements in and relating to choke-coils
IPC: H01F17/02
Filed: 1929-08-27
Abstract: 318,110. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Aug. 27, 1928, [Convention date]. Inductances. - A choke coil of the type wherein the inductance per unit length is greatest in the neighbourhood of the centre of the coil is constructed so that the end sections have a smaller number of turns per unit length, the internal and external diameters of the sections varying at the same time from end to end of the coil. In one construction, Fig. 1, a number of disc coil sections are wound with a smaller number of turns on the discs c than the intermediated discs d, the contour e of the coil being roughly circular where the inductive effect is a maximum. The main diameter of the sections may be equal or may vary from end to end. The end sections of the coil may be displaced axially in an outward direction.
Patent GB-1332554-A (GB)
Title: Method of preparing surface coverings comprising cellular pile fibres
IPC: D04H1/48
Filed: 1971-04-19
Abstract: 1332554 Pile fabric; non-woven fabric R P CROWLEY 19 April 1971 [2 April 1970] 26048/71 Headings DIK and D1R A pile fabric is prepared by forming an expandable polymeric material containing a thermally activatable blowing agent into thermally exuandable fibres, securing the expandable fibres to a backing sheet to form a surface covering wherein the fibres penetrate at least in part the backing sheet, and heating to activate the blowing agent whereby expansion of the expandable fibres locks them securely to the backing sheet. The fibres may be extruded from polymers of vinyl chloride (polymerised alone or with vinylidine chloride or vinyl acetate), C 2 -C 4  olefins, copolymars of ethylene, propylene and butylene or elastomeric polymers such as butyl rubber, neoprene, polybutadiene or styrene-acrylonitrile-butadiene, and may have eliptical or ribbon-like cross section 0.1 to 25 parts blowing agent per 100 parts resin is included, e.g. azodicarbonamide, oxybisbenzesulphonylhydrazide or dinitrosopentamethylenetetramine. Non expandable fibres may be mixed in, or combined with the expandable fibres in multiple strands. Alternatively the expandable material may be cast as a 2 to 100ml thick sheath over single or multiple strands of cotton, wool, rayon, jute, nylon, polyester, aorylic, vinyl, olefin, or continuous filaments of olefin polyester, nylon, acrylic, glass or steel. The fibres may be tufted, needle punched or woven into the backing. The backing sheet may comprise gas-expandable fibres, a solid flexible gas expandable polyvinyl chloride sheet, paper, resin reinforced paper, a woven fabric of jute or sisal yarns optionally with gas expandable fibres woven in, a sheet of asbestos or fibre glass, knitted, braided or stretched fabrics. The fabric is then heated to expand the fibres and optionally to soften the resin of the fibres and/or the backing sheet to produce bonding.  In an example 100 parts polyvinyl chloride, 10 to 50 parts dioctylphthalate plasticiser, 5 parts titanium dioxide pigment, 4 parts zinccadmium soap stabiliser and 2 parts azodicarbonamide blowing agent is extruded as continuous filaments, optionally over a nylon core. The filaments are tufted onto a closely woven fabric, to which may be laminated a gas-expandable polyvinyl chloride sheet. The fabric is heated at 175-200‹C in a hot air oven or under infrared heaters to decompose the blowing agent and fuse the polyvinyl chloride resin.
Patent GB-814643-A (GB)
Title: Improvements relating to slide valves
Inventor: SELWOOD GEORGE
IPC: F16K11/065
Filed: 1954-09-08
Abstract: 814,643. Slide valves. FAIREY AVIATION CO. Ltd. Sept. 8, 1955 [Sept. 8, 1954], No. 26062/54. Class 135. In a valve consisting of a slidable member 17, 18 controlling the connection of working ports 3, 4 with a pressure fluid supply port 5 or with an exhaust (not shown) as in Specification 606,620, recesses are provided either in the seating 10 or in the movable member 18 to overcome any tendency of pressure fluid in one of the working ports to tilt the member 18 when the valve is partially open. As shown recesses 28, Fig. 2, adjacent the port 3 communicate with the port 4 through passages 43, an annular groove 36, and a passage 42 whilst recesses 29 adjacent the port 4 communicate with the port 3 through passages 43, an annular groove 34, and a passage 41. Thus, any pressure in one of the working ports exerted against the member 18 is also exerted at a diametrically opposite part of the member. The arrangement is such that the recesses 28, 29 are never uncovered by the member 18. Instead of communicating with the working ports the recesses may be blind in which case they may, alternatively, be formed in the member 18.
Patent GB-654131-A (GB)
Title: Improvements in spring suspensions for road vehicles
IPC: B60G15/02
Filed: 1948-10-06
Abstract: 654,131. Vehicle suspension. BLACK, W. Oct. 6, 1948, No. 26094. [Class 108(ii)] A road vehicle suspension comprises a semi-elliptic laminated spring articulated at its ends to an axle-supporting member and also to auxiliary shock absorbers which are mounted on the vehicle body or frame, the axle supporting member being resiliently supported by main shock absorbers mounted on the body or frame. All the shock absorbers are preferably carried by an inverted channel member. Fig. 1, shows an axle-carrying member 12 whose ends are articulated by shackles 28 to the ends of laminated spring 21. Spring 21 abuts the transverse web of the inverted channel member 10, with or without the provision of buffer springs, or it may be bolted thereto. The ends of the laminated spring are also connected by shackles 22 to piston rods 18 of hydraulic auxiliary shock absorbers 16 fixed to the channel member 10. The ends of axle-carrying member 12 have upstanding pillars 13 which have pads 15 at their upper ends engaging helical springs 14 enclosed in housings 11 fast with the channel member 10. In a modification, Fig. 4, each end of the spring 21 is articulated to a sliding plate 27, and is slotted for sliding movement over a reduced portion 25 of the piston rod 18 of the auxiliary shock absorbers 16; the figure shows also an axle 30 carried in brackets 20 by the axle-carrying member 12. In a further modification of the auxiliary shock absorber mounting, Fig. 5, each end of the spring 21 has a shackle pin 31 slidably mounted in a block 38 disposed between a pair of helical springs 39 located between the axlecarrying member 12 and the channel shaped member 10.
Patent GB-599712-A (GB)
Title: Cyanine dyes and photographic materials containing them
IPC: C09B23/06
Filed: 1945-10-06
Abstract: A meso-substituted carbocyanine dye is prepared by condensing a quaternary salt of a thiazoline, benzthrazole, or naphthathiazole containing an R2-CH2 group (wherein R2 represents H or an alkyl group) in the 2-position to the quaternary nitrogen atom with an ester of a dithiocarboxylic acid and isolating the carbocyanine dye from the reaction mixture, e.g. by chilling or by adding water and precipitating with an organic solvent.  A basic condensing agent (e.g. a trialkylamine, dimethylaniline, N-methyl-piperidine, or pyridine) may be used. In example 1, 3 : 31 : 7-trimethylthiazolinocarbocyanine iodide is prepared by refluxing together 2-methylthiazoline methiodide, methyl dithioacetate, ethyl alcohol, and triethylamine, and precipitating with water.  In examples 2 to 4, 7-ethyl-3- : 31-dimethylthiazolinocarbocyanine iodide, 3 : 31-diethyl-9-methylthiacarbocyanine iodide, and 3 : 31-diethyl-9-methyl-4 : 5 : 41 : 51-dibenzthiacarbocyanine bromide are similarly prepared. Specication 585,666 is referred to.
Patent GB-407683-A (GB)
Title: Improvements relating to doors for garages and like structures
IPC: E05F1/02
Filed: 1932-09-20
Abstract: 407,683. Operating doors by weights. MOTT, S. F., Spinney Close, Leamington- Hastings, near Rugby. Sept. 20, 1932, No. 26139. [Class 65 (i).] A garage or like door hinged at its upper horizontal edge 19 has a pivoted weighted balancing and operating lever 1 connected to the lower edge of the door by a cable 4 guided by pulleys 6-9, the pulleys 8, 9 being mounted on a strut 24 of the frame 12-14 secured to the wall and projecting outwardly a distance equal to the height of the door. More than one lever may be provided, the weight of the combined weights being equal to half that of the door. A short operating lever may be provided on the spindle of the counterweighted lever or the weighted lever may be mounted outside the garage.
Patent GB-1352790-A (GB)
Title: System for converting electrical energy to rotational mechanical energy
IPC: G04B11/04
Filed: 1971-04-19
Abstract: 1352790 Reciprocating motors GRUEN INDUSTRIES Inc 19 April 1971 [21 Sept 1970] 26166/71 Heading H2A [Also in Divisions F2 and G3] In a ratchet mechanism for converting reciprocating motion of an electrically powered arm 28 into rotary motion of an output shaft 100, e.g. to drive a watch gear train, an arm 78 is attached to the arm 28 and carries a pallet jewel 80 which is interjected between the teeth of an index wheel 106 on the shaft 100 to ensure that the latter is advanced in regular steps. As shown the ratchet mechanism includes springs 114, 116 which encircle a drum 110 on the shaft 100 and are respectively carried by a fixed part 130 and a socket 74 on the arm 28. As the latter is reciprocated by a solenoid coil 24, the springs are wound and unwound so as to grip and slip alternately on the drum 110 to advance the shaft 100. The magnetic circuit comprises permanent magnets 36, 38 and soft iron polepieces 46 and 48 which have poles 52, 54 and 58, 60. In its rest position, the arm 28 is held magnetically against the pole 52. In an alternative embodiment, the index wheel 106 is provided with a disc 204, Fig. 5, having radial ribs 216 or other surface irregularities which co-operate with brushes 214, 220 on the armature 28 and a fixed arm 222 respectively. Each brush comprises natural or synthetic fibre(s) or metal wires. The irregular surface may be a cylindrical surface (230, Fig. 8, not shown) and the positions of the fibres and surface may be reversed, the wheel 106 carrying the fibres and the irregular surfaces being on the arms 28, 222. The arrangement is shown driving a watch the coil 24 being pulsed once per second by a transistor switch controlled by an oscillator. The shaft 100 carries a seconds hand.
Patent GB-1415857-A (GB)
Title: Separation plant for removal of solid particles from liquids
IPC: B01D21/00
Filed: 1972-06-06
Abstract: 1415857 Purifying machine tool coolant W LUK-PASZYC 4 Sept 1973 [6 June 1972] 26286/72 Heading BID Dirty machine tool coolant enters the space between baffle 2 and the adjacent tank wall to reduce turbulence, endless chain scraper 4, 5 removes solids from the tank floor and coolant returns to machine(s) through a filter 10, surge tank (9) and pump 11. The surge tank is a compartment to one side of the main tank (Fig. 3, not shown) with which the filter communicates via duct 8. The filter may be as in Specification 1398284 and is removable from duct 8 so that the apparatus can function as a settling tank alone.
Patent GB-227909-A (GB)
Title: Improvements in talking machines
IPC: H04R7/14
Filed: 1923-10-23
Abstract: 227,909. Gramophone Co., Ltd., and Buckle, H. L. T. Oct. 23, 1923. Reproducers, arranging and supporting toolarms and mountings.-In a gramophone or like machine, a member carrying the rocking stylusbar is pivotally mounted on the diaphragm-holder in such a way that it can be folded back to lie substantially parallel to the diaphragm when not in use, to allow the diaphragm to be then brought to an horizontal position. The invention is particularly intended for machines having large diaphragms. In the construction shown, the diaphragm 2 is mounted in a ring 24 having girders 3 which are pivoted upon a bracket 4. This is so mounted in a bearing 5 that the diaphragm can swing across the record. During playing, the diaphragm is held in the inclined position shown, by means such as spring-catches 7. The stylusholder 10, which may be constructed as described in Specification 202,488, is mounted on a tubular member 21, having a yoke-shaped end 20 which is pivoted between screws 18, 19 arranged as shown in Fig. 2. A transmission rod 12 connected to the stylus-holder and passing through the tube 21 is coupled by a ball-and-socket joint 14, 15 to a short rod 13 attached to the diaphragm. The arrangement described enables the tube 21 to be laid flat against the diaphragm as shown in dotted lines in Fig. 1.
Patent GB-942816-A (GB)
Title: Vinyl chloride interpolymers
IPC: C08F214/06
Filed: 1960-07-29
Abstract: Copolymers consist of 99.95 to 99.998% wt. vinyl chloride units and 0.05 to 0.002% wt. units of an ester of the general formula: <FORM:0942816/C3/1> where R and R1 are each H or CH3, x is 2, 3, 4, 5 or 6 and n is 1, 2 or 3.  The ester components may be obtained by esterifying one mole of the appropriate alkylene or polyalkylene glycol with two moles of the allyl or methallyl half ester of maleic or fumaric acid or a mixture thereof, several such esters being specified. The copolymerisation may be effected at 30 to 70 DEG C. in aqueous suspension using a maleic anhydride/vinyl acetate copolymer or gelatine as suspending agent and lauroyl or benzoyl peroxide as catalyst. The copolymers may be used as insulating coatings for electrical conductors and in paints and other surface coating compositions. An exemplary wire coating composition has the following formulation:-100 parts by weight vinyl chloride-triethylene glycol bisallylmaleate copolymer 42 parts by weight di-(2-ethylhexyl phthalate) 22 parts by weight polyaromatic hydrocarbon oil 20 parts by weight clay 15 parts by weight calcium carbonate 8 parts by weight white lead 1 parts by weight stearic acid.
Patent GB-815420-A (GB)
Title: Diamond cut-off wheel
IPC: B24D5/12
Filed: 1957-08-22
Abstract: 815,420. Moulding abrasive wheels. NORTON GRINDING WHEEL CO. Ltd. Aug. 22, 1957 [Aug. 27, 1956], No. 26506/57. Class 87(2). [Also in Group XXIII] The segments 40a, Fig. 8, of an abrasive cutoff wheel (Group XXIII) comprise an inner part 42a secured to the metal centre 70 of the wheel and an outer part inetgrally bonded to the inner part. The segments are formed initially as a ring in a mould comprising a lower plate 11, Fig. 1, outer band 10 and upper plate 12. The inner part of the ring, consisting of sintered tungsten, titanium or tantalum carbide, nickel or iron, bonded together with cobalt, is spread in a recess 25 formed between the plate 12 and a ring 14 and subjected to a pressure of 2 tons per sq. in. applied through a ring 13. The ring 14 is removed and the outer part of the ring, consisting of diamond abrasive and sintered carbide bonded together with cobalt, spread in a recess formed between the outer band 10 and the ring 13 and a pressure of 2 tons per sq. in. applied, this time, through the ring 14. Bothrings 13, 14 are then removed and a 50 ton per sq. in. pressure applied through a ring 31, Fig. 3. to bend both parts together. The bonded ring is removed from the mould and cut into the segments 42a which are placed between upper and lower graphite plates in a graphite mould consisting of segments 55, Fig. 5, which are located in bars 53, 54, in turn, positioned between segments 51, 52 in an outer ring 50. The whole is then induction heated to a temperature between 1200‹C. and 1300‹C. and subjected to a 2 tons per sq. in. pressure. After removal from the mould, the segments are secured to the metal centre 70.
Patent GB-1494103-A (GB)
Title: Process for rendering at least part of a surface phosphorescent
IPC: C09K11/06
Filed: 1975-01-21
Abstract: 1494103 Luminescent compositions and uses thereof POST OFFICE 21 Jan 1975 [25 Jan 1974] 26556/77 Divided out of 1494102 Heading C4 A surface is rendered phosphorescent by applying thereto and curing in situ a solution containing a phosphorescent activator and a soluble precondensate which is capable of forming an insoluble condensate which does not absorb UV radiation at any wavelength at which the phosphorescent activator does, and which is capable of forming an insoluble condensate in the presence of the phosphorescent activator, in the amount used, which is phosphorescent. The preferred solutions are those claimed in parent Specification, viz., using aminoplast precondensates, particularly urea-or melamine-formaldehyde precondensates, and having a pH of 6-9À5. They preferably contain up to 20 vol. per cent of a C 1  -4  alcohol and a sodium carbonate or borate buffer, and have a water-tolerance of 2À0-2À5 ml./ml. Suitable phosphorescent materials are carbazole sulphonic acid, p-aminobenzophenone, alpha-naphthoflavone, 8- amino-1-naphthol-3:6-disulphonic acid, 2-naphthylamine-6-sulphonic acid, p-aminobenzoic acid, terephthalic acid, fluorene sulphonic acid, diphenylene oxide sulphonic acid and 4,4'-dihydroxydiphenyl sulphonic acid. Activators are exemplified. In the examples melamine-formaldehyde solutions of M:F molar ratios approx. 1À3:1 and 1:3 are prepared and mixed with about 2 p.h.r. of sodium carbazole sulphonate or sodium or calcium p-aminobenzoate. The solutions are diluted and used to render paper phosphorescent. Coding applications such as for postage stamps and printing inks such as for jet printers are disclosed.
Patent GB-984556-A (GB)
Title: A tower of scaffolding having safety means for a winch operated hoist therein
Inventor: CLAY EDWARD HARTLEY
IPC: B66B13/14
Filed: 1963-07-04
Abstract: 984,556. Safety devices for lifts and hoists. PARKSIDE PLANT CO. Ltd. July 4, 1963, No. 26558/63. Headings B8H and B8L. A safety control circuit for a winch-operated hoist for use on a building site comprises hoist operated switches 18, 19, 20, 20<SP>1</SP>, located at the stopping positions of the hoist and connected in parallel and through the contacts of a selector switch 21 in series with gate operated switches 15, 16, 17, 17<SP>1</SP>, such as the switches disclosed in Specification 984,557. Current from a generator 22 passes through a voltage regulator 23 and a relay 25 controls the supply of current through a main switch 26 to a solenoid 27 which controls the connection of a manually-operated winchoperating lever to a weighted winch stopping and braking lever such as is described in Specification 984,558. Thus the winch stops when any one of the gate-operated switches or the hoist-operated switch at the level determined by the selector switch 21 is opened, and cannot be started unless all the gate-operated switches are closed and the selector switch 21 is moved to select a hoist-operated switch at a level other than that at which the hoist is stopped.
Patent GB-807174-A (GB)
Title: Reel pay-out devices of the tension-controlled type
IPC: B65H67/00
Filed: 1956-08-30
Abstract: 807,174. Reel brakes. STANDARD MACHINERY CO. Aug. 30, 1956 [Dec. 9, 1955], No. 26566/56. Class 103 (1). In a reel pay-off device for unwinding wire or other continuous flexible stock W over a bodily movable guide or dancer roller 16, when the movement of such roller is caused by the variation of tension in the wire W to control the force applied by a brake shoe 158 to the drum 96, the brake actuating linkage includes a main spring 22 connected to a fixed anchorage and a weaker spring 218 adapted resiliently to oppose the take-up of lost-motion in a link 182. The arrangement prevents the strong main spring 22 having a direct action upon the brake shoe. Compression and extension of spring 218, Fig. 4 (not shown) within the strut 182 will normally be sufficient to vary the brake force for the changes in tension likely to take place during normal running, but if due to breakage of the flexible stock, the dancer roller 16 should move from the full line to the dotted position shown in Fig. 1, thus taking up all the lost-motion between the end of adjustable screwed rod 214, the stronger main spring 22 becomes operative to apply the brake strongly.
Patent GB-461090-A (GB)
Title: Improvements in, or relating to, the contact systems of electric switches
IPC: H01H1/20
Filed: 1935-09-26
Abstract: 461,090. Switch contacts. CRABTREE, G. E., ELLIOTT, W. T., BADHAM, E., and THORNTON, R. W., [Representatives of CRABTREE, J. A.]. (Schiele & Bruchsaler Industriewerke Akt.-Ges.) Sept. 26, 1935, No. 26590. [Class 38 (v)] A contact member adapted to bridge two fixed contacts 1a, comprises two pieces 2 held between the parts 5, 6 of a clamp and adapted to roll both on the clamp and on the fixed contacts when the switch is opened or closed. The part 5 is urged by a spring 7 towards the part 6. Hooks on the members 2 retain them in the clamp longitudinally and side plates 8 extending from the part 5 retain them laterally. The contact pieces 2 may be split longitudinally or laminated.
Patent GB-1008781-A (GB)
Title: Improvements in and relating to dehydrating devices and methods of making the same
IPC: B65B25/00
Filed: 1962-07-11
Abstract: 1,008,781. Adsorbent elements ; presses for separating liquids from solids. DYDRA S.a.r.L. July 11, 1962 [July 29, 1961; April 5, 1962], No. 26708/62. Headings BID and B1L. [Also in Division B5] Compact dehydrating elements for use in sealed packages comprise as a desiccant, argillaceous earth, e.g. montmorillonite, silica gel, bentonite, calcium sulphate or synthetic aluminium silicate and as reinforcing material less than an equal weight of fibres of cellulose, asbestos or rock wool which are loosely and randomly distributed in the desiccant. If so desired a portion of the surface may be dyed with cobalt chloride to provide an indication of the condition of the dehydrating element. The elements may be in the form of circular discs (e.g. to form a force-fit in, or to be glued on to, a stopper for a tube) flat or curved plates, rods, or as illustrated, a spiral (Fig. 4) suitable as a retaining pad for pharmaceutical products. In Fig. 9 there is shown a hot press-filter in which may be formed the bodies or a sheet from which they may be cut. A paper mash or paste of liquid consistency may be mixed with argillaceous earth and placed at 54 between filter cloths 52, 56 and perforated plates 50, 58, the former of which forms the lower part of a rigid pan. Weights 60 are placed on the upper plate and hot air is passed through container 42. A vacuum pump may be applied to the pipe 68 connected to the apex of the collecting cone 62. The temperature may be increased slowly at first, from 50 ‹C. up to 150 ‹C. over a period of 36 hours. Fig. 10  shows a generally similar apparatus in which separate filters 70 are acted upon by a single press 72 to form the desired pellets or tablets directly. Further methods of forming the elements specified are (a) forming an aqueous paste of asbestos fibre and adsorbent substance, mixing by kneading, desiccating, crushing, partly humidifying and pelleting or tableting, (b) mixing asbestos and partly humidified argillaceous earth and pelleting under a pressure of 15 tons/pellet, and (c) casting a paste into a porous cardboard sleeve after drying as described in connection with Fig. 9 to a water content of 50% and cutting the bodies from the so-formed rod, or (d) extruding a paste produced as in (c) and obtaining plates or rods therefrom.