baber/WOPTO huggingface dataset:
Patent GB-241314-A (GB)
Title: Method of degreasing raw wool
IPC: C11B11/00
Filed: 1924-07-28
Abstract: Raw wool, preferably dried until it contains about 2 to 5 per cent of water, is degreased by treating it with liquid acetone so as to leave from 2 to 5 per cent of fat in the wool.  According to one method the raw wool is treated at room temperature in a tightly closed extractor with three to five times the quantity of acetone.  After half an hour the extract is withdrawn, the wool treated with fresh acetone, and finally washed with water. According to a second method the degreasing operation is effected in stages, the raw wool being passed by means of a suitable transporting device through three or other number of serially disposed extraction chambers.  In the first bath the majority of the easily soluble constituents of the wool fat pass into solution, in the second bath the remainder of the easily soluble wool fat and a small part of the more difficulty soluble wool wax are separated out, whilst in the third bath, the main portion of the more difficulty soluble wool wax passes into solution.  The wool then passes into a connected chamber, where it is washed with water.  The temperature of the baths is selected according to the fat content of the particular wool under treatment, the temperatures of the separate extraction baths being correctly stepped.
Patent GB-390149-A (GB)
Title: Improvements in and relating to the manufacture and use of colouring matters
IPC: C09B47/06
Filed: 1931-06-22
Abstract: Phthalimide or substances yielding it under the conditions of reaction of a derivative thereof are heated with ammonia and magnesium or antimony, to give coloured products containing probably the iso-indole nucleus which may be polymerized and containing also magnesium in combination where this has been p  employed.  Magnesium may be removed from products containing it, by treatment with concentrated sulphuric acid, and reacts with the metal-free products to give the original compound.  According to examples, phthalimide is treated with ammonia and magnesium turnings or powder, the product extracted with caustic soda and purified with hydrochloric acid and organic solvents; phthalimide is treated with ammonia and antimony powder, the metal-free product isolated and further treated with magnesium powder; and 4-chlorophthalimide, 3 : 4-dichlorophthalimide, 3 : 6-dichlorophthalimide and 4-nitrophthalimide are treated with ammonia and magnesium.  The product obtained from magnesium and phthalimide, after removal of the magnesium, may be made into a lake by mixing with aluminium sulphate, treatment with barium chloride followed by drying and converting into an ink by grinding with a Middle Litho varnish.  In place of phthalimides the phthalamide or phthalic anhydride may be employed. Specification 322,169, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-1010818-A (GB)
Title: Frequency standard
IPC: H03L1/04
Filed: 1962-05-10
Abstract: 1,010,818. Automatic temperature control. P. G. SULZER. May 10, 1962 [Feb. 14, 1962], No. 18059/62. Heading G3R. [Also in Division H1] An automatic temperature-control circuit for a crystal oven comprises a three-stage transistor amplifier having regenerative feedback derived from a bridge circuit 17, 26, 27, 28 and applied by lead 31 to the base of the first transistor 19. The circuit does not oscillate until a change in temperature of the oven is detected by thermistor 17, whereupon the bridge becomes unbalanced and feedback voltage is generated. The rectified output of the circuit is proportional to the change in temperature and is applied through lead 35 to the heater winding of the crystal oven.
Patent GB-821496-A (GB)
Title: Improvements relating to gas-heated ovens
IPC: C10B21/18
Filed: 1958-06-06
Abstract: 821,496. Coke ovens. KOPPERS G.m.b.H., H. June 6, 1958 [Aug. 16, 1957], No. 18091/58. Classes 51 (1) and 51 (2). In a twin-flued coke oven in which a portion of the waste gases from the heating flue 1 in which combustion is to take place is passed into the flue 2 at 3 and recirculated through the port 5, a rich gas nozzle 6 is located in the flue 1 laterally of the port 5 and extends upwardly into the flue 1 far enough to form beneath it a mixing chamber in which combustion air from an inlet 8 in the base 11 of the flue can mix with the recirculated waste gas before mixing with the rich gas to produce an extended flame and reduce the deposition of soot. The direction of air and waste gas flow may be reversed at intervals and the flue 2 with nozzle 7 and air inlet 9 be used for combustion. The part of the nozzles projecting above the base 11 of the flues 1 and 2 may be of enlarged cross-section, Fig. 4, and may comprise masonry shields 12, 13 respectively of similar height to the nozzles 6 and 7 shown in Fig. 1.
Patent GB-166527-A (GB)
Title: Improvements in diffusion apparatus for the extraction of sugar from beet and like purposes
IPC: C13B10/10
Filed: 1921-07-05
Abstract: 166,527. Rak, A. July 13, 1920, [Convention date]. Exacts, making.-Apparatus for extracting juice from sugar beet and similar operations comprises an open ended vertical diffusion chamber A and screw straining device C connected at the bottom by a horizontal conduit. The beet slices are fed to the top of the chamber A and discharged from the bottom by rotary blades b, e and other blades coacting therewith through the conduit to the press C, from the top of which they are discharged by blades k to a shoot h. Fresh liquid enters the press at m, and the expressed liquid is passed by a pump p, through a heater u if necessary, to the chamber A, which it enters at n. Liquid overflows from the chamber A through a strainer o and gutter l. A number of such units may be arranged in a battery, the liquid and beetroot passing through them in counter current. The first two units may be arranged in parallel and the remainder in series.
Patent GB-551851-A (GB)
Title: Improvements in or relating to snap-action electric switches
IPC: H01H5/18
Filed: 1939-06-22
Abstract: 551,851. Snap-action switches. LANDIS & GYR AKT.-GES. June 22, 1939, No. 18197. Convention date, April 19. [Class 38 (v)] A snap-action switch has a tilting strip contact member supported at two points between. which the. actuating means bears, the contact member being a stiffened flat leaf spring provided with an integral spring tongue and being mounted between one end and the free end of the tongue, the other end being the contact. In the example an insulating pin 20 borne by a moving member of a thermostat presses on a single-piece contact arm 11 near one bearing point 10 causing the contact 14 to leave an adjustable stop 15 and meet a fixed contact 17 against the action of a spring 12, shown as slit out of the contact arm 11, bowed between the bearing points 9, 10. A pin 21 prevents the arm passing over the dead point. In a modification the pin 21 is not used and the contact arm snaps over from one contact to second, thus forming a changeover switch.
Patent GB-1344763-A (GB)
Title: Cable splicing moulds
IPC: B29C33/00
Filed: 1972-04-19
Abstract: 1344763 Cable splicing mould M BARENBLATT 19 April 1972 [20 April 1971] 18222/72 Heading B5A A cable splicing mould comprises two cylindrical shells 10, 12 telescopically connected for adjusting the length of the mould, each shell being split into interlocking sub-shells 14, 16 and 18, 20 to enable it to be assembled about a cable splice. The abutting edges of the subshells 16, 20 and 14, 18 carry interengaging grooves and ribs respectively( Fig. 3, not shown). An annular rib 28 on the end of shell 10 selectively engages annular grooves 26 in shell 12. Each shell has a hole 30 for passing in an epoxy potting compound.
Patent GB-613309-A (GB)
Title: Improvements in and relating to overhead line fittings for electric supply systems
IPC: B60M1/14
Filed: 1946-06-18
Abstract: 613,309. Electric cable supports. LIVINGSTONE, R., and ANTI-ATTRITION METAL CO., Ltd. June 18, 1946, No. 18264. [Class 36] An overhead line fitting for electric supply systems of the kind comprising a yoke and a runner has a connection between the runner and yoke such that the runner forms a reasonably straight line under tensioned conditions and is not influenced by any curve produced in the yoke. Drive tips 2 are connected to the yoke 1 by means of bolts 3. A runner 4 is provided at each end with lugs 5 which embrace the yoke 1 and are secured thereto by bolts 6. Distance pieces 7 prevent the lugs 5 being pressed together when the bolt 6 is tightened. Insulating members 8 and 9 insulate the runner 4 from yoke 1.
Patent GB-1443125-A (GB)
Title: Manufacture of 2 cyano propionate esters
IPC: C07C/
Filed: 1974-04-26
Abstract: 1443125 2 - Cyanopropionate esters IMPERIAL CHEMICAL INDUSTRIES Ltd 3 March 1975 [26 April 1974] 18372/74 Heading C2C 2-Cyanopropionate esters are obtained by hydrogenating in the presence of hydrogenation catalysts mixtures of 2-cyanoacetate esters, formaldehyde and condensation catalysts. Specified starting materials are cycloalkyl, e.g. cyclohexyl, substituted alkyl, e.g. 2-hydroxyethyl or 2-cyanoethyl, or lower alkyl, e.g. ethyl, cyanoacetates. The formaldehyde may be formed in situ from derivatives which yield it under the reaction conditions.
Patent GB-893620-A (GB)
Title: A mounting arrangement for the rolls of rolling mills
IPC: B21B31/07
Filed: 1960-05-25
Abstract: 893,620. Yielding bearing supports. SCHLOEMANN A.G. May 25,1960 [June 3, 1959], No. 18414/60. Class 12 (1). A mounting arrangement for rolls 1 of rolling mills comprises multiple roller bearings 3 having rollers 3a, and a pair of chocks 5, each of which has an annular hub 5a tapering conically towards the roll 1, has a web 5b in line with the row of rollers 3a positioned the farthest from the roll 1, and has an extension 5c. An integral flange 7, of the member 5, is connected by a bolt 9 to a flange 8 of a cover 10 which houses a ball thrust bearing 4 and screw-threaded bushes 12, 13. Axial adjustment is effected by rotating the bush 13 by a bar 15 attached thereto and locking is effected by a nut 14 on the bush 13. In an embodiment as shown in Fig. 2, the portions 5c of a pair of members 5 are extended and, when connected together, form a housing cap.
Patent GB-717923-A (GB)
Title: Portable tape dispensing device
IPC: B65H35/00
Filed: 1951-08-03
Abstract: 717,923. Tape dispensers. JOHNSON & JOHNSON. Aug. 3, 1951, [Aug. 16, 1950.] No. 18492/51. Class 18. An adhesive tape dispensing device comprises a housing 14 rotatably supporting a roll of tape and having a fixed jaw 30 with a tear edge 35 and a slidable jaw 31 with a table surface 42 to which the tape adheres when the jaw is in the closed position. When the jaw 31 is closed the tape is clamped between a ramp 43 on the table 42 and the tear edge 35 so that it may be cleanly severed. A depression 44 in the table 42 facilitates the lifting of the tape adhering to this surface. The slidable jaw 31 is guided between the peripheral wall 20 of the housing 14 and rails 36 having stops 39 which prevent jamming of the jaw 31 in the closed position. A knurled thumb piece 41 engages the wall 20 to limit the opening movement of jaw 31. Specification 717,959 is referred to.
Patent GB-180586-A (GB)
Title: Process for automatically regulating the addition of a treating agent to water, sewage, or the like
IPC: G05D11/13
Filed: 1921-07-08
Abstract: 180,586. Simsohn, J. S. July 8, 1921. Reagents, supplying.-The supply of a treating agent is varied in accordance with variations in the electrical conductivity of the untreated liquid or the treated liquid or both. The Figure shows apparatus for varying the supply of soda solution to water in accordance with the variation in the difference between the conductivities of the treated and untreated water. Soda solution passes from a vessel c through a valve x to water flowing through a pipe a. The conductivity of the untreated water is measured by the current flowing in a circuit d comprising a coil g, and that of the treated water by the current in a circuit h comprising a coil k. The currents passing through the coils g, k regulate the position of a solenoid core l attached to a spring- controlled lever m, from the other end of which is supported an electrode r. The valve x is controlled by a lever w connected to a spring v and to the core of a solenoid u in a circuit t, which comprises also a vessel p, provided with a fixed electrode s and the movable electrode r. This arrangement by ensuring the requisite excess of reagent in the treated water will regulate the amount of reagent supplied according to the rate of flow of water, the concentration of the reagent solution, and the degree of hardness or impurity of the water.
Patent GB-558543-A (GB)
Title: Improvements in or relating to electric wall switches
IPC: H01H1/16
Filed: 1942-12-31
Abstract: 558,543. Tumbler switches. SMART & BROWN (ENGINEERS), Ltd., and COLE, S. W. Dec. 3,1, 1942, No. 18596. [Class 38 (v)] In a switch a pair of spaced metal contacts 8 are bridged by a metal ball 6 or roller 22 pressed upward by a spring. A cam member on a lever 16 depresses the ball &c. to break the contact. The ball may have an insulating member 20 interposed between it and the operating cam, and in a modification this member extends around the ball. In Fig. 11 the roller 22 is pressed upward by the ends of a plate spring 24. In a further modification a ball is pressed upward by the bowed part of a similar spring.
Patent GB-558723-A (GB)
Title: Improvements in and relating to valves
IPC: F16K1/30
Filed: 1942-12-31
Abstract: 558,723. Valves. SPECIALTIES DEVELOPMENT CORPORATION. Dec. 31, 1942, No. 18607. Convention date, Dec. 31, 1941., [Class 135] An eccentrically positioned inclined member 47 on a valve stem engages a shoe member 41 received in a recess in a valve 31, and the ends of a flexible sleeve 70 are secured to the shoe and a member 52, the latter being held on a gasket 54 by a bushing 55.
Patent GB-191095-A (GB)
Title: Improvements in or relating to couplings for hose, taps and the like
IPC: F16L37/252
Filed: 1921-07-11
Abstract: 191,095. Brown, H. B. July 11, 1921. Overlap joints with packing at base of socket; butt joints.-Relates to spigot-and-socket bayonettype joints having a washer between the two parts and consists in forming the washer as a resilient ring j mounted on a metal ferrule or tube k loosely fitting in recesses o formed in the spigot and socket portions c, e. In the construction shown in Fig. 2, the spigot portion c is formed integral with a tap b. In the modification shown in Fig. 3, the spigot portion p is screwthreaded so that it can be attached to an existing tap b, hose or the like. The socket portion in this modification comprises a flanged tubular part f and a union r. A locking-wedge may be provided to prevent rotation of the parts.
Patent GB-638081-A (GB)
Title: Improvements in or relating to glassware lehr
IPC: C03B25/06
Filed: 1947-07-14
Abstract: 638,081. Glass-annealing leers. HARTFORDEMPIRE CO: July 14, 1947, No. 18733. Convention date, July 8, 1939. [Class 51 (ii)] A glass-annealing leer, in which heating and cooling gases are circulated, comprises means associated with the entrance end of the tunnel for supplying heated gases and circulating them about the ware on the conveyer, a series of independent muffles completely surrounding a subsequent section of the tunnel and means for passing cooling gases in the muffles entirely around the tunnel. The leer shown comprises a tunnel 11 divided into a conditioning zone heated by three sets of transversely-spaced, rearwardlydirected burners 18, a slow cooling or annealing zone, a muffled cooling zone and a rapid cooling zone, the ware being transported on an openwork conveyer 15. The slow cooling zone is heated by burners 20 in passages formed by cover blocks 21, these burners being arranged to produce a transverse circulation of the tunnel atmosphere which may be assisted by jets of compressed air supplied by a fan 22. The means for the supply and discharge of air in the rapid cooling zone are as described in Specification 491,954, and comprise longitudinally-extending pipes 27, 28 fitted with nozzles 29 through which air jets are directed against central baffles 30. The muffled cooling zone comprises a series of transverse muffles, Figs. 4 and 5, having bottom passages 34 provided with damper-controlled openings 37; side passages 35 and top passages 36 each communicating with an exhaust stack 39 controlled by a damper 40. Compressed air supplied from the fan 22 may be admitted through jet nozzles 41 to accelerate the flow through the muffles. The bottom wall 32 of the tunnel may be of metal and the side and/or top walls of heatinsulating material so that the ware is subjected to a greater cooling effect at the bottom than at the sides. Alternatively the walls may be of unequal thickness. The pipes 27, 28 and baffle 30 may extend into the muffled cooling zone.
Patent GB-1068997-A (GB)
Title: Bis (haloalkyl) disulphides
Filed: 1964-05-06
Abstract: The invention comprises (a) compounds of the general formula (C2RnX4- nYS-)2, wherein n is 1,2 or 3, each X is independently a hydrogen, chlorine or bromine atom, Y is a chlorine or bromine atom, R is an alkyl group when n is 1, and R is a hydrogen atom and at least one of the substituents X and Y is a bromine atom when n is 2 or 3, and (b) the compounds <F\1> and (Cl-C2HBr3-S-)2 The compounds are prepared by forming a mixture of a chloroolefine and a catalytic amount of a Lewis acid, and adding thereto sulphur monochloride or sulphur monobromide.
Patent GB-530663-A (GB)
Title: Improvements in and relating to steam traps
IPC: F16T1/34
Filed: 1939-06-29
Abstract: 530,663. Steam traps. SPITZ, E. June 29, 1939, No. 18909. [Class 64 (ii)] Condensate is discharged through metal, glass or ceramic, small ball or other shape bodies 30 in concentric compartments 22, 27 in a casing 11. The condensate enters at the base of the inner compartment through a nozzle 16 controlled by a set screw 19, and passes upwards and downwards through the compartments. It escapes around the outer compartment to an outlet 13.
Patent GB-210366-A (GB)
Title: Process for the manufacture of bauxite cements free from metallic impurities and novel products resulting therefrom
IPC: C04B7/32
Filed: 1923-07-23
Abstract: 210,366. Patrouilleau, L. G. July 23, 1923. Cements, processes for making; treating after manufacture.-Cements derived from bauxite are freed from magnetic metallic impurities by treatment in a magnetic separator after manufacture. The cements are obtained by treating a mixture of lime or limestone and bauxite in a furnace, with the addition of carbon to reduce metal oxides. After the first smelting the metallic pig or slag is removed by pouring or sorting, and the remaining alumino-silico-calcic slag is crushed, screened and passed to the magnetic separator, which preferably comprises an endless band with magnets so arranged as to allow the non-magnetic particles to drop from the band while the magnetic particles remain adhering to it. By thus freeing the cement from metallic impurities, a constant proportion of lime, alumina, silica and as an accessory magnesia may be obtained.
Patent GB-1405544-A (GB)
Title: Device for the releasable fastening of hose or pipe ends
IPC: F16L33/02
Filed: 1973-04-19
Abstract: 1405544 Clamps K WEINHOLD 19 April 1973 [22 June 1972] 19019/73 Heading E2B [Also in Division F2]  A pipe-clamp has a pair of flanged jaws 10, 11 which are secured together at one end by an adjustable nut and bolt 19, 20, and at the other by a toggle lever 12 pivoted to one jaw at 14 and connected by a spring link 13 to the other jaw. The jaws are axially aligned by interfitting arms 22, 24, Fig. 4, and 27, 29, Fig. 3, at one side. In the form shown in Fig. 6, the clamp is secured to a double nozzle 52 in that its bolt 47 passes through a staple 53 projecting from the side of the nozzle. Modifications of this arrangement are described.
Patent GB-1151772-A (GB)
Title: Laminar Structure.
IPC: G03B21/64
Filed: 1966-04-29
Abstract: 1,151,772. Laminates. INTERNATIONAL POLAROID CORP. 29 April, 1966 [29 April, 1965], No. 19034/66. Heading B5N. [Also in Division G2] A laminar structure comprises a generally planar information-bearing surface which comprises a photographic print and which is laminated to a substantially transparent sheet-like element at least a portion of the surface area of which is light polarizing . The information-bearing surface which may also carry lettering may be of paper, wood or metal. Specified lightpolarizing materials are oriented polyvinyl alcohol containing metal, metal complexes, iodine or dichroic dye, partially dehydrated polyvinyl alcohol, oriented cellulose stained with dichroic dye, cellulose acetate containing dichroic crystals, hydrolysed cellulose acetate and glass carrying an oriented dichroic dye. The photograph may be of the silver transfer type supported on polyvinyl alcohol. Bonding may be effected by pressure-sensitive adhesives e.g. butadiene-acrylonitrile copolymers, epoxy based adhesives, cyanoacrylate polymers or a copolymer of methyl vinyl ether with maleic anhydride. A transparent layer e.g. of polyvinyl chloride, blends of polyvinyl chloride with polyvinyl acetate, copolymers of vinyl chloride with vinyl acetate, polystyrene or glass may be bonded to the polarizing element. The laminates may be embossed. In the embodiment of Fig. 5, only a portion 14 of the transparent layer is stained with a dichroic dye.
Patent GB-1186203-A (GB)
Title: Production of Inorganic Pigments.
Inventor: SCHOLTZ JOZEF
IPC: C09C1/20
Filed: 1967-04-25
Abstract: 1,186,203. Inorganic pigments. CHEMOKOMPLEX VEGYIPARI GEP-ES BERENDEZES EXPORT-IMPORT VALL. 25 April, 1967, No. 19082/67. Heading C1A. Pigments based on lead chromate or zinc chromate are produced by suspending PbO or ZnO in water, or in a mixture of water and acid, and feeding the suspension to the top of a reactor, an aqueous solution containing CrO4= ions, being added simultaneously to the reactor, the said solution being introduced at 3 or more levels, the minimum distance between the levels being one-tenth of the height of the liquid in the reactor, and the amount of chromate solution added through each inlet being at least one tenth and at most three-quarters of the total, whereafter the precipitated zinc chromate or lead chromate is matured at at least 20‹ C. for at least 0À5 hours, washed and separated from the solution. Preferably FbO is added to water and acid such that a suspension of basic lead salts is formed, the addition of PbO and acid being completed before half the amount of water has been added. In the example PbCrO4.PbSO4 is produced by adding PbO to HCl to give PbCl2.3PbO, and treating the resulting suspension with K2Cr2O7 and H2SO4.
Patent GB-121635-A (GB)
Title: Improvements in or relating to the Manufacture of Nitric Acid.
Inventor: TONIOLO CARLO
IPC: C01B21/26
Filed: 1917-12-27
Abstract: 121,635. Toniolo, C. Dec. 27, 1917. Nitric acid.-In the production of nitric acid by absorbing nitrogen oxides in water in a series of towers in counter-current, strong cooling of the acid passing from tower to tower is effected by artificial refrigeration so that the acid entering each tower may be in the neighbourhood of its freezing-point; for instance the acid entering the last tower may be at 4-5‹ C., that entering a preceding tower receiving 13 per cent. acid-8‹ C., and. in an earlier tower receiving 65 per cent. acid -25‹ C.