baber/WOPTO huggingface dataset:
Patent GB-536651-A (GB)
Title: Improvements in radial flow turbines for elastic fluid
IPC: F01D5/04
Filed: 1939-12-02
Abstract: 536,651. Elastic-fluid turbines. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. Dec. 2, 1939, No. 31339. Convention date, Dec. 30, 1938. [Class 110 (iii)] Labyrinth packing disc 5 is anchored to a turbine rotor 2 by inter-engaging shoulders.8, 9. The engaging, surfaces may be cylindrical or conical. The other surfaces are spaced from one another.
Patent GB-1300364-A (GB)
Title: Cellulase production
IPC: A23K1/165
Filed: 1971-07-05
Abstract: 1300364 Cellulase SOC FARMACEUTICI ITALIA 5 July 1971 [10 July 1970] 31359/71 Heading C3H [Also in Division A5] Cellulase is produced by cultivation of Penicillium iriensis under aerobic conditions in a culture medium comprising an assimilable source of carbon, an assimilable source of nitrogen and mineral salts, the resulting broth being filtered and the cellulase precipitated, preferably by 70% saturated ammonium sulphate.
Patent GB-1223044-A (GB)
Title: IMPROVEMENTS IN PRODUCTION AND RECOVERY OF METHYL alpha-D-MANNOPYRANOSIDE
IPC: C07H15/04
Filed: 1968-07-02
Abstract: 1,223,044. Methyl α-D-mannopyranoside. ITT RAYONIER Inc. 2 July, 1968 [2 Nov., 1967 (2)], No. 31449/68. Heading C2C. A process for producing essentially pure methyl α-D-mannopyranoside and other methyl glycosides from impure plant materials containing a mixture of carbohydrates including mannose or mannose polymers or co-polymers, is characterized in that the impure dry mannosecontaining plant material is reacted with methanol in the presence of a mineral acid under substantially anhydrous conditions at a temperature of from 66-116‹ C. for up to 24 hours to convert the carbohydrates in the plant material to a mixture of the corresponding methyl glycosides, and in which pure crystals of methyl- α-D-mannopyranoside are preferentially crystallized from the alcoholic solution of methyl glycosides or from an aqueous solution of these glycosides prepared from the alcoholic solution and in which crystals of α-D-mannopyranoside are recovered. One means of precipitating the crystals of methyl-α-D-mannopyranoside is by cooling the mixture of methyl glycosides to ambient temperature or below. Alternatively the solution of methyl glycosides is neutralized to a pH of about 7, evaporated to a thick syrup, cooled below 50‹ C. and then dissolved in water at about 55‹ C. The water insoluble materials are removed and the solution decolorized and filtered. The crystals of methyl-α-D-mannopyranoside are precipitated by either cooling the solution below 30‹ C. or dehydrating the aqueous solution and precipitating the crystals from an alcoholic solution. In the examples the mannose containing starting materials are a non-cellulosic carbohydrate extract obtained from southern pine wood chips, a high pressure, high-temperature extract of wood, a spent sulphite liquor from coniferous woods, mannan extracted from coffee grounds, guar gum and glucomannan extracted from wood pulp during refining with cold caustic solution.
Patent GB-1032938-A (GB)
Title: Centrifugal pumps for liquids
Inventor: LAWRENCE OWEN NAPIER
IPC: F04D29/22
Filed: 1963-08-10
Abstract: 1,032,938. Centrifugal pumps. JOSEPH LUCAS (INDUSTRIES), Ltd. Aug. 7, 1964 [Aug. 10, 1963], No. 31667/63. Heading F1C. The flow through the inlet 14 of a centrifugal pump is controlled by a manually-adjustable valve 16. When the valve is almost closed, the liquid is directed by blading 25 in the impeller eye to auxiliary blading 21 which delivers it through ports 24 in an annular partition 20 into the main blading 19 and thence to the outlet 18. When the valve is opened further, to provide a flow greater than can be handled by the auxiliary blading 21, the excess liquid flows over the inner periphery of the partition 20 and thence through the main blading 19 to the outlet 18.
Patent GB-1127147-A (GB)
Title: Improvements in alloy steels
IPC: C22C38/38
Filed: 1966-07-14
Abstract: 1,127,147. Alloy steels. GENERAL ELECTRIC CO. July 14, 1966 [July 26, 1965], No. 31701/66. Heading C7A. A steel suitable for a cold worked, generator retaining ring with a grain size no larger than ASTM5 has the following percentage composition:- Mn 16.5-20.5 Cr 3.5-6 V more than 0.25-less than 1 C 0.4-0.6 P up to 0.07 S up to 0.015 Si up to 1 Fe the remainder After forging, the ring is solution treated at 1800‹ F to 2100‹ F for 2 to 4 hours before cold expansion.
Patent GB-663026-A (GB)
Title: Improvements in cap stacking machines
IPC: B21D51/44
Filed: 1949-12-10
Abstract: 663,026. Packeting-machines. AUTODAIRY ENGINEERS, Ltd., and GODWIN, C. W. July 3, 1950 [Dec. 10, 1949]. No. 31766/49. Addition to 642,690. Class 94(i). The machine for inserting bottle caps into a magazine described in the parent Specification is modified by the provision of a sleeve G<SP>1</SP> surrounding the upper end g of the plunger G which raises the caps into the magazine N, the sleeve being raised by the plunger to depress the pawls M<SP>2</SP>, which retain the caps on the subsequent lowering of the plunger, and thus prevent damage to the caps. The sleeve is prevented from rotating by a pin g<SP>3</SP> engaging a slot g<SP>4</SP> and is slidable on the plunger against the frictional resistance of spring rings g<SP>1</SP> or a cup leather. The upward and downward movements of the sleeve are limited by the engagement of a flange g<SP>2</SP> thereon with the plate E and sleeve H, the plunger continuing its upward movement after the sleeve is retained by the plate E to carry a cap into the magazine, and continuing its downward movement after the sleeve is retained by the sleeve H until the top of the plunger is level with the top of the sleeve. The pawls are urged inwardly by a circular coil spring or rubber band m.
Patent GB-341130-A (GB)
Title: Improvements in and relating to the manufacture of oxidation products from hydrocarbon materials
IPC: C07C27/10
Filed: 1929-10-19
Abstract: Liquid oxygen containing derivatives particularly alcohols are prepared by passing a relatively cool mixture of a hydrocarbon and oxygen into a reaction zone, forcing heated hydrocarbon into said zone whereby the mixture of hydrocarbon and oxygen is raised to a temperature at which reaction takes place and withdrawing the products of the reaction.  Carbide-forming metals such as iron, nickel or cobalt, or salts such as borax or copper, clay, silicious or vitreous materials may be used as catalysts.  Pure hydrocarbons such as methane, ethane, propane, and the like to hexane and mixtures such as are obtained from natural gas or refinery gas and also higher boiling mixtures such as gasoline, kerosene and heavier hydrocarbons may be treated.  Thus, air and hydrocarbon in liquid state are passed in counter current relation under pressure through an absorption tower 1 whereby oxygen <PICT:0341130/IV/1> is dissolved in the hydrocarbon and undissolved nitrogen is withdrawn by the pipe 8, the mixture of hydrocarbon and oxygen is passed through a heater 11 where it may be heated to not above 200 DEG  C., and thence to a reactor 13, which is maintained at a temperature below 600 DEG  C.  A second portion of hydrocarbon is passed by a pipe 9 to a pre-heater 10 and heater 15 and thence to the reactor.  The reaction products are used for heating the heaters 10, 11 and then pass to the cooler 22.  The unchanged hydrocarbon is separated from the oxidized products by distillation or by solvents for the oxidized products such as aqueous methyl alcohol in towers 26, 29, and returned to the process.  An example is given of the preparation of a mixture of ethanol, propanol, butanol, acetaldehyde, acetic acid and acetone from pentane.  Specification 321,494, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-204589-A (GB)
Title: Improvements in variable speed and reversing gearing
IPC: F16H1/28
Filed: 1922-11-21
Abstract: 204,589. Pearn, H. W. Nov. 21, 1922. Variable-speed gearing comprises an epicyclic train controlled by a variable-speed chain gear of known type. A driven casing h carries planet gears g, j meshing respectively with gears f, k upon shafts e, e<1>. The shaft e is driven from driving-shaft a through constant-speed chain pair d, b. The shaft e<1> is driven from the shaft a through variable chain pair l, c the construction of which is no part of the invention.
Patent GB-924279-A (GB)
Title: Sound-proofed gas-blast circuit-breaker
IPC: H01H33/58
Filed: 1960-09-15
Abstract: 924,279. Air-blast switches. BROWN, BOVERI & CIE A.G. Sept. 15, 1960 [Sept. 15, 1959], No. 31863/60. Class 38 (5). In a gas-blast switch of the kind having at least one arc-extinguishing chamber with an exhaust valve which closes on the extinction of the arc to maintain the contacts open and under pressure, and a main blast valve which controls the admission of compressed air into the chamber when the switch is opened and the release of air from the chamber to effect the closing of the switch, silencers are provided to silence both the blast exhausting through the exhaust valve and the air released from the chamber through the main valve. Fig. 2a shows the main valve 3, which in the position shown releases the compressed gas from the insulating column 5 supporting the arcextinguishing chamber or chambers, the air passing through a silencer 4 into a casing 4a and thence to the atmosphere through openings 4g. In Fig. 3a the gas-blast passes through a nozzle contact 9 and the exhaust valve 11 into a silencer 7. In a modified arrangement, Fig. 4, the silencer 7 is arranged in two parts, each extending around the exhaust valve casing but in opposite directions.
Patent GB-257470-A (GB)
Title: Improvements relating to the manufacture of chromates
IPC: C01G37/14
Filed: 1925-12-17
Abstract: 257,470. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). Dec. 17, 1925. Alkali chromates are obtained by treating with oxidizing gases a heated mixture of chrome ore, an alkali metal compound such as sodium carbonate and a solid diluent such as lime in a loose layer of little thickness, without agitating the mixture. The mixture, in a finely ground state, is placed in a uniform thin layer upon a travelling grate which moves from the charging position to the heating and oxidizing zone where it is exposed to the direct heat of oxidizing fire gases for two to three hours and moves further to the discharging position. Alternatively, a thin layer may be heated for one half to one hour in a similar furnace and withdrawn, when a fresh layer is spread over the first and so on until a mass of the desired thickness is obtained. The weight of lime used does not exceed the weight of carbonate.
Patent GB-1113525-A (GB)
Title: Fluorine compounds,process of preparing said compounds and process of imparting repellent resistance to solid materials
IPC: C07F5/06
Filed: 1965-07-27
Abstract: The invention comprises compounds of the formula (Y)aM(R1)b(R)c wherein Y=RfCHOHCH2COO-, <FORM:1113525/C2/1> , RfCONH(CH2)xCOO- or <FORM:1113525/C2/2> Rf is CnF2n+1; M=Al, B, Cd, Ga, Mg, Th or Zn; R=H, halogen, benzyl, phenyl or a C1-C8 alkyl radical; R1 is phenyl or a C1-C8 alkyl radical; a=1 or 2; b and c are each 0, 1 or 2; a+b+c=the valence of M minus the valence of (Y)a; n is an integer of 1 to 20, and x is an integer of 1 to 10.  They are prepared by reacting a fluorinated organic acid having the formula C2F2n+1CHOHCH2COOH or CnF2n+1CONH (CH2)2COOH with dimethyl benzyl aluminium, Ph3Al or a compound of the formula MR(R1)d, where M=Al, B, Cd, Ga, Mg, Th or Zn, R is H, halogen or a C1-C8 alkyl radical, R1 is a C1-C8 alkyl radical and d is an integer equal to the valence of M minus 1, in a molar ratio of 0.5:1 to 2:1 in the presence of a solvent such as heptane, ethylacetate or ether in the absence of O2 or water.  The reactions of b -hydroxy b -perfluoroheptyl propionic acid and perfluorooctanoylglycine with Et2Zn (isoBu)3Al and Et3Al are described in the examples. The compounds of the invention may be used for the treatment of cellulosic, protinaceous and synthetic materials to render them resistant to soiling, staining and wetting by both water and oil (see Division D1).ALSO:Novel fluorine compounds (see Division C2) of the formula: (L)a M(R1)b (R)c wherein <FORM:1113525/D1-D2/1> halogen, benzyl, phenyl, or a C1 - C8 alkyl radical; R1 = phenyl or a C1 - C8 alkyl radical; a = 1 or 2; b and c are each 0, 1 or 2; a +b+c = the valence of M minus the valence of (Y)a; a is an integer of 1 to 20; and x is an integer of 1 to 10, are used for treating cellulosic, protineinaceous and synthetic materials to render them resistant to soiling staining and wetting by both water and oil borne materials.
Patent GB-994882-A (GB)
Title: Improvements in or relating to apparatus for punching tapes, cards or other record members to produce coded records of information
Inventor: SMITH CHARLES SPROSON
Filed: 1961-09-06
Abstract: 994,882. Selective punching apparatus. GENERAL ELECTRIC CO. Ltd. Sept. 12, 1962 [Sept. 6, 1961], No. 32015/61. Heading B4B.  Apparatus for punching a tape 11, card or other record member comprises a plurality of punches 3 to 7 associated with selectively operable selecting members 21 to 25, and an operating member 12, which carries the punches and an associated die 9, having an armature 17 associated with an electromagnet 18 which when energized actuates the member 12 so as to apply a sharp blow to any punch which has its associated selecting member actuated. The member 12 is pivotable about a knife edge bearing 13 against the action of a spring 15. An end of each member 21 to 25 rests on the upper face of an anvil 19 fixed to a plate 14. The punches 3 to 7, and a further punch 8, have heads 38 to 42, and 44, the head 44 being disposed above a raised portion 43 of the anvil 19. The action of the spring 15 is supplemented by the action of a leaf spring 58 when this is released from a stop -59 by a screw 60. The members 21 to 25, which are mounted on the plate 14, have attached thereto armatures 28 to 32 associated with electromagnets 33 to 37. The tape is fed through a gap between plates 49, 50 after each punching operation by means of a sprocket wheel 52 which together with a ratchet wheel 53 is mounted on a rotatable shaft 54 carried by the member 12, the periphery of the wheel 52 extending through slots in the plates 49, 50. A spring detent 56 attached to the member 12 engages the teeth of wheel 53 to prevent this wheel and hence the wheel 52 from rotating in a clockwise direction. A spring pawl 57 attached to the plate 14 is stressed to engage the teeth of wheel 53. Any actuated punch is withdrawn from the tape by means of tines 46, 47 of a forked member 48. Punchings ejected from the die 9 enter a cowling 65 and due to the movement of the member 12 are vibrated through a spout 66. The punches may be carried by the plate 14 and the selecting members by the member 12.
Patent GB-392581-A (GB)
Title: Improvements relating to the metallic lining of metal bodies
IPC: B23K20/22
Filed: 1931-11-19
Abstract: 392,581. Liners for brake drums and other articles. BERSEY, F. T., HARDY, E. A., NEWSON, S. C., and LAYSTALL MOTOR ENGINEERING WORKS, Ltd., Laystall House, Ewer Street, London. Nov. 19, 1931, No. 32083. [Class 103 (i).] A method of securing a metallic liner to a metallic body, for example, a brake drum, consists in interposing a ring of ductile metal between the body and the liner and then subjecting the liner to a chemical or like process, for example nitrogenization which causes the liner to permanently expand or " grow." The liner c and the brake drum or body a may each have projections d, e which as a result of the expansion of the liner become embedded in the ductile ring b. The liner c may be a steel alloy containing carbon, silicon, manganese, nickel, chromium, and aluminium. The ring b may be of aluminium, brass, copper or other good heat-conducting metal to assist the dissipation of the heat during braking. In carrying out the process the parts are assembled as shown and a protective coating which may be of sodium silicate, barium, or potassium chloride is applied to the drum which is then placed in a box heated in a furnace and subjected to the action of ammonia gas. Specification 372,401 is referred to.
Patent GB-252303-A (GB)
Title: Improvements in cases for propellor or other pencils
IPC: B43K23/00
Filed: 1925-12-19
Abstract: 252,303. Harley, A. G. Dec. 19, 1925. Pencil holders; guards; grips for facilitating writing. - Outer casings for pencil holders formed from a tube having three or more longitudinally - projecting V-shaped ribs 3 with intermediate part-circular portions 4 for the purpose of preventing rolling and to enable the pencil holder to be gripped more comfortably. The holder may be built up of outer and inner tubes 6, 7, Fig. 4, the inner tube projecting beyond the end of the outer one to leave a shoulder 8 against which a cap 9, closed by a knob 13, abuts. The cap, which in a modification is adapted to screw into position, may serve as a receptacle for refills.
Patent GB-1067718-A (GB)
Title: Improvements in or relating to the impact adjustment of type-bars in power-driven typewriters
IPC: B41J7/94
Filed: 1964-08-07
Abstract: 1,067,718. Typewriters. OLYMPIA WERKE A.G. Aug. 7, 1964 [Aug. 7, 1963], No. 32218/64. Heading B6F. Type - bar machines; power - assisted type actions.-A power-operated typewriter comprises a plurality of type bars 42, Fig. 1, articulated via links 41, 40, levers 39 and pivoted drive levers 1 carrying the cams 2 cooperating with a continuously rotating roller 37. On depression of a key lever 3 a release 36 connected thereto engages a projection 2<SP>111</SP> on said cam 2 to bring it into contact with the roller 37, whereupon the cam through the intermediary of the lever 1 raises a slide 5 so that one or the other of stop surfaces 12, 13 engage one or the other of screws 15, 16 of an impact adjustment device, the continued rotation of the roller 37 pivoting the cam 2 about projection 35<SP>1</SP> to displace the drive lever 1 to the right to pivot the type-bar 42 for impression. Impact adjustment arrangements.-For impact adjustment of the type bars 42 the typewriter is provided with an adjusting screw carrier 14, Fig. I, having disposed thereon two rows of letter-by-letter adjustment screws 15, 16, one row 15 serving for upper case letter and the other row 16 serving for lower case letters, said rows co-operating with stop surfaces 12, 13, respectively. The impact of each type bar is adjusted by setting the screws to vary the gaps between the screws and the stop surface to thereby control the upward travel of slides 5, which is limited by a rod 8 engaging a slot 5<SP>111</SP> in said slides. Collective adjustment of the impact is effected by rotation of a disc 49, having a cam plate 46 mounted thereon said disc co-operating with a roller 45 to thereby pivot the carrier 14 about a pin 17 to vary the gaps between the screws 15, 16 and stop surfaces 12, 13. In the embodiment shown in Fig. 1, the screws 16 co-operate with the surfaces 13, i.e. for lower case shift, the screws 15 being staggered with respect to the screws 16 by half a letter space. In order to engage the screws 15 with their corresponding stop surfaces 12, when the typewriter is in its upper case shift position a lever 20 attached to the type bar basket is articulated to a lever 23, which for upper case shift is pivoted anticlockwise to rock a further lever 25, Fig. 3, via a spring 33, whose arms 32, 34 engage a pin 26 on the lever 25. The lever 25 has a roller 28 engaging a groove 30 to displace the carrier 14 laterally against a stop pin 19. In another embodiment (Fig. 5, not shown), the screws 15 and 16 are aligned with respect to the slides 5 and the levers 23, 25 are replaced by a single lever 123, which displaces the carrier 14 for case shift pivotally about said pin 17 assisted by a toggle spring 133.
Patent GB-519507-A (GB)
Title: Manufacture of saturated and unsaturated compounds of the bis-nor-cholanic acid and aetio-cholanic acid series and substitution products thereof
IPC: C07J7/00
Filed: 1938-11-07
Abstract: 519,507. Bile acid. SOC. OF CHEMICAL INDUSTRY IN BASLE. Nov. 7, 1938, No. 32224. Convention date, Nov. 9, 1937. [Class 2 (iii)] Saturated and unsaturated compounds of the aetiocholanic acid series are obtained in addition to corresponding compounds of the bis-norcholanic acid series by subjecting the acid products of the oxidation of sterols or sterol derivatives which contain a side chain in the 17-position to a fractional treatment. Treatments mentioned include fractional esterification, fractionalsaponification of esters, fractional crystallization if desired by way of suitable derivatives such as salts, esters,ethers and addition products with halogen or halogen hydride, and fractional vacuum distillation if desired in the form of derivatives. The preferred method is fractional esterification and fractional saponification. During the oxidation process nuclear double linkages and hydroxyl groups may be protected if desired. In examples (1) cholesterol acetate dibromide. is oxidized with chromic acid and the acid oxidation products are .completely esterified with diazomethane. The ester fraction is partially saponified with methyl alcoholic potash, and the neutral fraction separated and fractionally distilled to yield aa fraction comprising 3-oxyaetiocholenic acid methyl ester, which is purified by recrystallization. The mother liquors from the above crystals are saponified and the acids so obtained are treated with acetic anhydride and then with acetic acid. Working of the. product with strong sodium carbonate gives a sodium salt which when decomposed in the usual way and fractionally crystallized yields 3-oxy aetiocholenic acid and also 3-oxy-bisnorcholenic acid ; (2) The acid fraction obtained by the oxidation of sitosterol acetate dibromide is esterifiedwith ethyl alcohol until about 2/3 of the acid has been esterified.The neutral and acid constituents are separated. Fractional crystallization of the acid fraction yields pure oxy-bisnorcholenic acid and oxy-aetiocholenic acid.
Patent GB-281681-A (GB)
Title: Outfit for rice powder, face powder, and other similar products
IPC: A45D33/00
Filed: 1927-11-30
Abstract: 281,681. Povel, H. A. Dec. 1, 1926, [Convention date]. Powder distributers.-A vanity case comprises a box A containing a receptacle for face or other powder Having one or more small openings through which the powder may be ejected in small quantities by tapping a flexible wall of the receptacle or a flexible wall in contact with an apertured wall of the receptacle and a powder puff B lying adjacent the side of the receptacle having the openings and normally covering and blocking them. As shcwn, the receptacle 1 is bent from a blank to enclose a dish-like portion 4 containing the powder, a sheet of flexible material 3 being interposed between the apertured wall 2 of the receptacle and the open side of the portion 4 while a cardboard &c. sheet 7 resting on the powder is secured by turned-over lugs 8 on the receptacle; a notch 9 in the side wall of the receptacle provides the small opening 10. When the puff is removed from the box it serves to collect the powder ejected when the material 3 is tapped. The notch 9 may be replaced by a number of small holes.
Patent GB-741372-A (GB)
Title: Improvements in or relating to fuel shovels
IPC: F24B15/08
Filed: 1952-12-22
Abstract: 741,372. Sieves. HIGGINS, H. R. March 22, 1954 [Dec. 22, 1952], No. 32396/52. Class 117. [Also in Group I] A combined fuel-shovel and ash-sieve comprises a shovel-portion proper 3 with a handle 4, and a cover 5 pivoted on the shovel-portion and provided with a perforated front-wall 7 so that with the cover open the device can collect cinders from a fireplace and the cover can then be lowered over the shovel-portion and the device inverted over a receptacle, for sifting the ash. The cover is shaped so as to be higher above the shovel-portion at the front end, and has a trigger 8 at the rear, a spring-clip (not shown) being optionally provided to maintain the cover in a closed position during sifting.