baber/WOPTO huggingface dataset:
Patent GB-344015-A (GB)
Title: Improvements in or relating to the manufacture of tanning materials
IPC: C14C3/24
Filed: 1929-11-26
Abstract: The tanning materials obtained from lignite, or degradation products thereof, such as humic acid, by treatment with chlorine, neutralization with alkali lye and chlorination in the presence of alkali lye, as described in Specifications 284,670 and 323,781, [both in Class 2 (iii), Dyes &c.], are improved by removing neutral salts therefrom by lixiviation with water and/or dilute acids such as hydrochloric and sulphuric acids following a dehydration at temperatures below 100 DEG  C.  If sulphite or bisulphite have not been used in the preparation of the crude material, water alone may be used, otherwise hydrochloric acid is employed with advantage, since, after the removal of salts by washing, the residual acid may then be removed by treatment of the lixiviated product with a current of air at temperatures below 70 DEG  C.  Before lixiviation, the tanning materials must be dehydrated to make them less easily soluble than the salts to be removed. This dehydration may be accomplished by prolonged standing in the air of the pressed-out material, or by treatment with air at temperatures below 100 DEG  C. of a partially dehydrated material containing less than 60 per cent of water, or by heating for one half to one hour at 80 DEG  C., with or without the addition of such organic compounds as acetone, alcohols, phenols, or nitrobenzene, followed if desired by treatment in a current of air. When the products contain only 10 per cent of water they can safely be lixiviated.  The final products are soluble in warm water, and, as iron compounds have been removed by the lixiviation they may be employed with such vegetable tanning agents as quebracho which are sensitive to the presence of iron.  In the examples (1) 65 parts of weight of the product obtained according to the example of Specification 284,670 (containing 30 per cent of sulphate ash) p which has been dehydrated during 48 hours by a current of air heated to 60 DEG  C., are introduced into 130 parts of water and the mixture stirred for two hours at normal temperature.  The mixture is filtered and the residue washed twice with 5 per cent hydrochloride acid, then twice with water and dried at about 65 DEG  C. 42 parts of a product containing 1,1 per cent of sulphate ash are obtained.  (2) 70 parts of the product obtained according to example 1 of Specification 323,781 are stirred for two hours with 5 per cent hydrochloric acid, filtered off, washed 3 times with 5 per cent hydrochloric acid and dried in a current of air at 65 DEG  C. until hydrochloric acid can no longer be detected.  The yield is 42 parts of a product containing 2,05 per cent of sulphate ash, and a repetition of this treatment gives 40 parts of a product containing 0,35 per cent of sulphate ash.
Patent GB-913376-A (GB)
Title: Magnetic recording head construction
Inventor: NAMENYI-KATZ LASZLO
IPC: G11B5/105
Filed: 1959-10-26
Abstract: 913,376. Magnetic recording &c. heads. VECTRON ELECTRO-PHYSICS Ltd. Oct. 26, 1959, No. 36272/59. Class 40 (2). In a magnetic recording head comprising U-shaped magnetic member 11, two magnetic side members 21, 22 and two bobbins 15, 16, and wherein insertion of the arms of the member 11 and members 21, 22 into the bobbins from opposite ends locates the members and determines the gap, a screw 46 in the casing urges the assembly downward against sloping casing sides so that a thin portion of non- magnetic material 45 is clamped in the gap. The casing is subsequently filled with compound and the non-magnetic material which fills and determines the gap is cut back to the nose.
Patent GB-419492-A (GB)
Title: Improvements in pistons
IPC: F16J9/06
Filed: 1933-12-27
Abstract: 419,492. Pistons; cylinders. FREEDMAN, L., 3705, Washington Boulevard, St. Louis, Missouri, U.S.A. Dec. 27, 1933, No. 36387. [Class 122 (i).] Spring devices for expanding piston packing- rings in locomotive and other engines, comprise axially-extending casings externally threaded into openings in the piston wall 5 and housing springs which, through pins, expand the packing-rings. The springs may be removed without disturbing the piston assembly. The casing comprises a rectangular portion 14 housing oppositely-bowed leaf springs 17, 18 riveted together, which are arranged between plates 20, 22 provided with abutments 21, 23 respectively. The plate 22 acts upon pins 24 carrying thrust plates 27 which engage the packing-rings 9. Shims may be placed between the bottom of the casing and the plate 20 to take up wear without removing the piston. The end of the casing is closed by a screwed plug 13<a> held by a split retaining-ring 15. A casing plate 20<a>, 20<b>, 20<c> may hold the plate 22 against displacement when the piston is removed from the cylinder. Leakage steam has access to the bores 26 housing the pins 24, and equalizes expansion. In the modified form of piston shown in Fig. 7, a part 29 riveted upon the rim 28 of the piston and the piston body, are bored to house the casings. The cylinder head 38 is provided with removable plugs having clearance cavities.
Patent GB-1393143-A (GB)
Title: Method of lubricating a billet during extrusion
IPC: B21C23/32
Filed: 1972-08-04
Abstract: 1393143 Extruding BATTELLE MEMORIAL INSTITUTE 4 Aug 1972 [16 Aug 1971] 36533/72 Heading B3P A billet 10 is extruded by precoating it with a solid lubricating material 23, providing between the coated billet 10 and the extrusion container 20 a lubricating liquid film 22 having a thickness less than 1% of the billet diameter when the diameter is 1 inch or more or less than 0À010 inch when the diameter is less than 1 inch and advancing a ram 30 into the container 20 to pressurize the liquid material 22 and to force the billet 10 through the die 21. A seal 31 is positioned on the ram 30 or on a dummy block contacting the billet 10. The liquid may also be provided between the ram 30 and billet 10. The extrudate may be a tube. In one embodiment, the wall of the container 20 is coated with a solid lubricant and a heated, precoated billet 10 inserted into the container 20 to cause the lubricant coating the container 20 to melt and form a liquid lubricant film 22. In another embodiment, a precoated billet 10 is inserted in the container 20 which is heated by heating elements 40 causing a portion of the billet coating contacting the container 20 to melt and form the liquid film 22. The solid layer of lubricant 23 may comprise copper plating, zinc phosphate and stearate soap, fluoroplastics hydrogenated castor oil, grease, wax or ice. The liquid layer of lubricant 22 may comprise, petroleum or vegetable oil, synthetic fluid, water, grease or wax.
Patent GB-349951-A (GB)
Title: Improvements in and relating to towing hawsers for cable ships
IPC: B63B21/20
Filed: 1929-11-28
Abstract: 349,951. Towing. FELTEN & GUILLEAUME CARLSWERK AKT.-GES., M³lheim, Cologne, Germany. Nov. 28, 1929, No. 36551. Convention date, Jan. 23. Void [Published under Sect. 91 of the Acts]. [Class 114.] A towing cable, either in consequence of its own weight or by the provision of loading weights, has a considerable sag when normally stressed so that sudden pulls are not transmitted to the cable ship.
Patent GB-1202053-A (GB)
Title: Device for hanging and unhanging curtains
Inventor: STANLEY WILLIAM JAMES CECIL
IPC: A47H7/02
Filed: 1967-08-10
Abstract: 1,202,053. Suspending curtains. W. J. G. STANLEY. 29 Sept., 1967 [10 Aug., 1967], No. 36719/67. Heading A4B. A curtain suspension comprising a rail 1 with a depending extension 2 at each end includes a device which enables curtain runners to be transferred between a waistlevel position and an operative position on the rail 1, the device comprising a curtain advancing member 9 slidably mounted on the extension 2 and provided with an aperture 10 to receive the endmost curtain hook 17<SP>1</SP>, downwardly extending control means for raising and lowering the member 9, and means for retaining the member 9 in a raised position in which it forms an end stop. As shown the control means comprises an arm 7 with a pair of resilient heads 8 slidably engaged in a slot 4 in the extension 2 and lockable therein by friction or by clamps. The lower head 8 may be omited and the arm 7 may be pivoted to the member 9. Alternatively, the arm 7 may be replaced by a pulley and cord. In use, to removed a curtain, the member 9 is lowered to draw the runners 19 into the slot 4 in the extension 2 so that the curtain hooks 17 may be removed from the runner eyes 18 at a convenient height. The rail 1 and extension 2 are a push fit in recesses 6 in opposite ends of an arcuate connector 3 having slots aligned with rail and extension slots 4, 5. The rail and extension are carried by inserts 11, with screw holes 14, fitted in the slot 5.
Patent GB-1093833-A (GB)
Title: Improvements in or relating to apparatus for the automatic introduction of additivesto dry-cleaning fluids
IPC: D06F43/00
Filed: 1965-08-26
Abstract: 1,093,833. Delivering measured quantities of liquid. P. DELANEY. Aug. 24, 1966 [Aug. 26, 1965], No. 36817/65. Heading B8N. An apparatus for dispensing a measured quantity of liquid, such as a dry-cleaning additive, comprises a measuring chamber 10 adapted to be supplied from a tank 13, a dip-tube 15, and an inlet port 16 adapted to be connected to a source of compressed air. In use the dip tube is positioned to give the required volume to be dispensed and a valve 19 in a pipe leading to the inlet 16 is closed. A valve 14 in a pipe 12 leading into the measuring chamber from the supply tank 13 is opened so that the chamber fills with liquid. The valve 14 is then closed and the valve 19 opened so that incoming compressed air forces the liquid out of the chamber via a pipe 18. The measuring chamber may be transparent or provided with a sight tube 20. The valve 19 may be actuated by means of an electromagnetic device.
Patent GB-898062-A (GB)
Title: Improvements in or relating to travel cases
Inventor: BISHOP WILLIAM HENRY CHATTERLE
IPC: A45C3/00
Filed: 1957-11-26
Abstract: 898,062. Wardrobe suitcases. GILCHRIST & FISHER Ltd. Nov 19, 1958 [Nov. 26, 1957], No. 36838/57. Class 133. A wardrobe suitcase which can be hung up and opened out has on one side an inner wall 4 comprising a flap 5b connected by zip fasteners 12, 13 to a boundary portion 14, and a double-thickness flexibly under wall 5 which overlies the inner wall 4 when the case is closed, being then secured by straps and buckles 6, 7. Means are provided within the case for positioning garments; the flap 5b may have an externally-opening zipped pocket. Specification 867, 533 is referred to.
Patent GB-1182119-A (GB)
Title: Starter Assemblies for Internal Combustion Engines
Inventor: BOWCOTT ROY PRICE
IPC: F16D3/84
Filed: 1966-08-19
Abstract: 1,182,119. Washers. JOSEPH LUCAS (INDUSTRIES) Ltd. 19 July, 1967 [19 Aug., 1966], No. 37251/66. Heading F2H. A starter assembly for an I.C. engine comprises a roller clutch 13, 14, 15 adapted to be driven by a starter motor engaging with a sleeve 12, a pinion 16 adapted to engage a toothed wheel on the engine, and a sealing washer formed by an annular resilient ring 27, having a bead 26 at its periphery, and an annular washer formed by two halves 21, 22. The halves 21, 22 are bonded to the ring 27 at 30 so that the sealing washer may be stretched, as shown in Fig. 1, to pass over the clutch portion 15, of greater diameter than the bore of the washer, and secured in position by a retaining sleeve 23.
Patent GB-1382389-A (GB)
Title: Transport apparatuses for bedridden persons
IPC: A61G7/10
Filed: 1973-08-06
Abstract: 1382389 Invalid lifting devices GEURTSEN BV 6 Aug 1973 [9 Aug 1972] 37261/73 Heading B8H An invalid transporting and lifting apparatus for moving patients between a bed and a bath or shower closet comprises a wheeled carriage 4 with a pair of vertical, telescopic, guide pillars 6, 7 interconnected at their upper ends by a beam 8. An hydraulic jack 9 extends between the carriage 4 and the beam 8 to raise and lower said beam. Also connected to the upper ends of the pillars are the telescopic limbs 12b of U-shaped frames 12. The limbs are pivoted to respective pillars and each have an obtuse angled arm 13 interconnected by a linkage 14 whereby movement of a lever 15 connected to one of the arms 13 moves the frames between a vertical position and a horizontal position. The height of the frames 12 are adapted to engage the top edge of a bath or shower closet and the other limbs support horizontal bars 18 which extend parallel to the pivot axis of the frames with the pillars and support a patient supporting litter 5. The litter has a hinged head portion 5a whereby when the litter is lowered into a bath the head portion engages the head of the bath and tilts a patient from a prone position to a semi-seating position. A spring 23 may be connected to the arm 13 to bias the frames towards a horizontal position.
Patent GB-445731-A (GB)
Title: Improvements in or relating to the production of mineral lubricating oils
IPC: C10M175/00
Filed: 1934-12-31
Abstract: Petroleum lubricating-oils containing no or not more than 0,5 per cent of paraffin wax are refined by sulphuric acid at below -2 DEG C.  Fuller's earth treatment may follow.  Suitably, 6--30 per cent. of acid is used, and the oil is thinned by a hydrocarbon solvent. Example: Lubricating oil distillate is diluted with 1,5 vol. of petroleum, freed from all but 0,5 per cent of wax, treated at -10 DEG C., with 14 per cent of concentrated acid, and settled for 6--7 hr. at -10 DEG  C.; the upper layer is withdrawn, treated with 0,4 per cent of fuller's earth, and freed from diluent.  Specification 410,103 is referred to.
Patent GB-955129-A (GB)
Title: Improved process for producing nitriles
IPC: C07C255/49
Filed: 1962-10-02
Abstract: Nickel peroxide may be made by treating in aqueous alkaline medium a nickel salt, e.g. sulphate, chloride, nitrate or carbonate with an alkali metal persulphate or hypohalite, e.g. sodium or potassium hypochlorite or hypobromite. An example is given using nickel sulphate and sodium hypochlorite.  The product, a black precipitate, is vacuum dried over calcium chloride and is said to have an empirical composition corresponding to Ni2O3.3H2O or Ni(OH)3.  German Specification 127,388 is referred to.ALSO:Nitriles are made by contacting an amine having a structure -CH2-NH2 with nickel peroxide (see Division C1) in an inert solvent. It is preferable not to use more than twice the theoretical amount of nickel peroxide.  It is also possible to use less than the theoretical amount of nickel peroxide for effecting the oxidation by regenerating it in situ with alkali metal hypochlorite under alkaline conditions. The spent nickelous hydroxide may also be regenerated by means of alkali metal hypochlorite after recovery from the reaction.  Persulphates may also be used for regenerating the nickel peroxide.  In the examples the following nitriles have been prepared from the corresponding amines; benzonitrile, 4-methoxy benzonitrile, capronitrile, adiponitrile 2-, 3- and 4-chlorobenzonitrile, 2-, 3-, 4-methyl benzonitrile, 2-, 4-nitro benzonitrile 2 furanitrile, 1-naphthonitrile, caprylonitrile, lauronitrile.
Patent GB-780868-A (GB)
Title: Improvements relating to sewing needles
Inventor: EVERETT SAMUEL JAMES
IPC: B21G1/00
Filed: 1954-12-24
Abstract: 780,868. Sewing needles. EVERETT & CO., Ltd., S. & R. J. Dec. 14, 1955 [Dec. 24, 1954], No. 37392/54. Class 112 [Also in Group XXII] In a surgical needle a tubular, suturereceiving member 5 is deformed so as to grip a neck formed by a shallow annular groove 2 at the rear end of the needle shank 1 The latter is ground to form the groove 2, and is further ground to form a terminal chamfer 3. The member 5 is slid over the chamfer and groove, and is secured in position by swaging or rolling it to the shape of the groove.
Patent GB-994670-A (GB)
Title: Improvements relating to composite sheet-forming articles
IPC: C09J7/30
Filed: 1962-10-03
Abstract: A coated sheet material comprises an organic-solvent-sensitive adhesive first layer consisting of a mixture of, by weight, from 60-90% of a bituminous material on a wax having a melting point, e.g. 160-285  DEG F., such that it is non-tacky and non-adhesive at ambient temperatures, 1-25% of polyvinyl chloride or butyl rubber, and the remainder a plasticizer, and an elastic layer of thermoplastic material intimately bonded to the first layer.  The layers may be bonded by a bonding agent which may consist of, by weight, 40-45% of coal tar pitch, 6-8% of polyvinyl chloride, 8-10% of a ketone, and the remainder an aromatic solvent; or of equal percentages by weight of coal tar pitch and toluene, 6% polyvinyl chloride and 10% methyl ethyl ketone.  The bituminous material may be plasticized or unplasticized coal tar enamel, asphalt pitch, asphalt base enamel, other asphalt base or material.  The first layer may be bonded to the elastic layer by means of heat or other means such as surface pretreatment which renders the bituminous layer reactive with the elastic layer.  The elastic layer may be of "Cellophane" (Registered Trade Mark), cellulose butyrate, acetate, acetate-butyrate, nitrate and propionate, polyolefins, e.g. polyethylene and polypropylene, polyamides, vinyl and vinyl ester polymers, e.g. polyvinyl alcohol, polyvinyl-nitrile, polystyrene, polyvinyl chloride and vinyl chloride-vinylidene chloride or vinyl chloride-vinyl acetate copolymer.  The thermoplastic material may be plasticized and examples of suitable plasticizers are given.  The first layer may be in a solid or plastic state and may be squeezed or calendered to produce a sheet of the required thickness prior to application to the layer of thermoplastic material.  The coal tar of the bituminous composition may contain coal tar pitch, creosote oil, pulverized coal and a filler such as talc, diatomaceous earth, ground mica and slate.
Patent GB-340735-A (GB)
Title: Automatic lighter construction
IPC: F23Q2/08
Filed: 1929-12-06
Abstract: 340,735. Fricitional pocket igniters. E V AN S CASE CO., North Attleboro, Massachusetts, U.S.A. Dec. 6, 1929, No. 37474. Convention date, Dec. 13, 1928. [Class 75 (iii).] The sparking wheel and a pivoted snuffer arm are actuated against the action of a spring by a pivoted finger piece which overlaps the snuffer arm and is operable at one end thereof more remote from the wick than the axis of the snuffer arm. In the form shown in the Figure, the top wall 7 of the fuel container 5 is formed with upstanding side webs 10 between which extends a shaft 11, which may be a screw, and on which is loosely mounted a pressed metal actuating member 13 and a sparking wheel 12 carrying a ratchet 16. A pressed metal channel-shaped snuffer arm 18 carrying a snuffer 19 is similarly mounted on a second shaft 17, preferably arranged midway between the ends of the top wall 7, and a ratchet arm 22 pivotally mounted on a cross-pin 23 on the arm 18 is pressed into contact with the ratchet 16 by means of a spring 24. The actuating member 13 comprises a broad finger piece 25 and a pair of arms 26 in the form of a fork extending on either side of the arm 18, which arms are cut away at 27 to admit the shaft 17 when the member 13 is depressed. A pin 29 extends between the arms 26 and supports a sleeve which extends through elongated slots 32 formed in the side walls of the arm 18 so as to form a pin and slot connection between the actuating member 13 and the snuffer arm 18, the slots 32 preferably being formed with reinforcing edges 33. A spring 34 acting against the snuffer arm normally retains the actuating member 13 in the raised position and causes the snuffer 19 to press firmly on the bevelled shoulder 21 of the burner 6 to prevent evaporation of fuel from the wick 8, the channel-shaped arm 18 acting as a housing for the sparking wheel 12 and the pyrophoric metal 14. An end web 35 between the side webs 10 may be provided to act as a shield for the burner. When the finger piece 25 is depressed the pin and slot connection raises the arm 18, and the ratchet arm 22 rotates the ratchet 16 and the sparking wheel 12 so as to produce a shower of sparks. When it is released the spring 34 returns the snuffer to extinguish the flame, thereby advancing the ratchet arm 22 into engagement with the next tooth on the ratchet wheel 16, and the pin and slot connection swings the actuating member 13 into the raised position ready for re-use.
Patent GB-865164-A (GB)
Title: Improvements in or relating to pincers or like tools
IPC: A01K11/00
Filed: 1958-11-21
Abstract: 865,164. Pliers. ARNOLD & SONS VETERINARY INSTRUMENTS Ltd., and OLDFIELD, E. G. Nov. 19, 1959 [Nov. 21, 1958], No. 37574/58. Class 61. In pincers or like tools comprising a pair of hand operable levers 10, 11 pivoted together at 16, the lever 10 having fixed thereto a first work engaging member 13 and a guide 14 in which a second work engaging member 15 is slidably mounted, the lever 11 urges the second work engaging member towards the first work engaging member through mechanism which provides increasing leverage as the hand levers are squeezed together. As shown the second work engaging member is a punch 15 having a fixed collar 34 on which a number of tattoo needles 35 are mounted. The first work engaging member includes a die 41 for receiving the punch 15 and needles 35 and an ink pad which is penetrated by the needles. The rear end of the punch has a ball shaped projection 19 which abuts the inner face of an intermediate lever 18 pivoted at 17 to lever 10. A pair of crank levers 21 fixed to the upper end of the handle lever 11, carry between.them at the outer end a roller 23 rotatable on a pin 24, the roller being arranged to bear on a ramp-like part 25 of the outer surface of the lever 18. The crank lever 21 is connected to the punch by a lost motion link 28. , The punch is urged into retracted position by a compression spring 27. The handles are urged apart by a compression spring 26.
Patent GB-1588047-A (GB)
Title: Acid esters of trimellitic acid and their use as hardeners for epoxide resins
IPC: C07C317/22
Filed: 1977-09-09
Abstract: Powder coating compositions comprise an epoxide resin and a carboxylic acid of formula   <IMAGE>  +TR  <IMAGE>  where R1 represents a phenylene or naphthylene group or a group comprising 2 or 3 phenylene radicals linked by one or two carbon-carbon bonds, ether oxygen atoms, sulfur atoms, or sulfonyl, sulfoxide, carbonyl or alkylene groups, R2 represents a saturated alkyl group, a benzenoid group or an aralkyl group, and both n are the same and represent zero or 1.
Patent GB-1160951-A (GB)
Title: Process for the Purification of Tris-Chloropropyl Phosphate
Inventor: HAGGIS GEOFFREY ARTHUR
IPC: C07F9/09
Filed: 1965-09-03
Abstract: 1,160,951. Purifying tris-chloropropyl phosphate. IMPERIAL CHEMICAL INDUSTRIES Ltd. 24 Aug., 1966 [3 Sept., 1965], No. 37697/65. Heading C2C. Tris-chloropropyl phosphate obtained by reacting propylene oxide with POCl 3  in the presence of a catalyst, e.g. TiCl 4 , and containing malodorous impurities is purified by steam distillation. In carrying out the process steam at atmospheric, sub-atmospheric or elevated pressure may be passed through the trischloropropyl phosphate which may, optionally, be heated. In one of the examples the residue from the steam distillation is stirred with calcium hydroxide, dried in vacuo at 65- 70‹ C. for 4 hours and filtered with kieselguhr to give the purified product. The purified trischloropropyl phosphate is particularly suitable as a flame-proofing agent for polyurethane foams and for this purpose may be incorporated in a reaction mixture containing an organic polyisocyanate, a polyol of molecular weight of at least 250 and a gas generating agent, e.g. in the mixture used in the process disclosed in Specification 1,159,435.