baber/WOPTO huggingface dataset:
Patent GB-406107-A (GB)
Title: Improved process for obtaining opium alkaloids, more particularly from poppy-plants
Filed: 1932-11-29
Abstract: Opium alkaloids are extracted from ripe dry plant-portions (particularly poppies) by treatment with agents which dissolve the alkaloids.  Suitable solvents are aqueous acids such as hydrochloric, sulphuric or sulphurous acid or acid salts such as sodium bisulphite, the concentration of the extracting agent being preferably 1.5--2 per cent.  In an example chopped dry poppy-straw is treated in a series of 8 containers with 1.5--2 per cent sulphurous acid solution in counter-current.  To the extract from the last container which is first evaporated in vacuum to one-fifth of its volume, is added a base such as calcium hydroxide to reduce the acidity to 0.1 to 0.02 per cent and an equal volume of alcohol and the precipitated substances are removed.  The solution is then again evaporated in a vacuum to a fifth of its volume, an equal volume of alcohol is added and enough soda lye to dissolve all the morphine.  Other alkaloids such as narcotine, codeine and narceine precipitate with the impurities and are filtered off.  The filtrate is acidified, evaporated in a vacuum to a third of its volume and made weakly ammoniacal to precipitate the morphine, which is purified in known manner, for instance, by crystallization from water.  The other alkaloids obtained may be separated by means of solvents such as benzene.
Patent GB-624854-A (GB)
Title: Improvements relating to means for tracing or checking the contours of shaped profiles
IPC: G01B11/24
Filed: 1945-12-13
Abstract: 624,854. Surface and outline gauges. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and BIGGS, R. H. Dec. 13, 1945, No. 33837. [Class 106 (ii)] [Also in Group XX] Apparatus for indicating the profile of a work-piece comprises a pivoted follower arm adapted to traverse the profile and a pivoted repeater arm actuated by the follower arm, the follower and repeater arms having respectively exploring and tracing parts of finite size and effectively of circular cross-section so that the tracing part will sweep a path whose width is also finite and of which one side is always related in shape to the profile traversed by the exploring part and the tracing part being combined with an optical projector so that a shadow of the tracing part is projected upon a screen. The apparatus shown incorporates two pairs of follower and repeater arms so that both sides of a profile may be examined simultaneously. A turbine blade 1 under test is mounted on a support (not shown) adjustably secured to a base 3 having guides for a transversely movable support 5. Two rigid extensions of the support 5 carry respectively a pair of follower arms 9, 19 and a pair of repeater arms 12, 20. The arms are in the form of bellcrank levers and the follower arms, which may be spring-loaded to ensure contact with the test surface, are connected to their respective repeater arms by links 14, 21, one of which may be adjustable. The exploring and tracing ends of the follower and repeater arms respectively are preferably formed by rotatably mounted balls. An enlarged image of the tracing end of the repeater arm is projected on to a screen 17 by means of a light source (not shown), a collimator 15 and a lens 16. The base 3, which carries the lens 16, may be arranged to slide on rails in order to vary the degree of magnification or lenses of different focal lengths may be used. By traversing the support 5 and observing the position of the image on the screen at intervals, the profile may be checked against an enlarged true profile. Specification 616,970 is referred to.
Patent GB-344334-A (GB)
Title: Supporting device for perforating hammers sliding on a pedestal
IPC: B21J13/08
Filed: 1930-02-28
Abstract: 344,334. Percussive tools. SOC. METALLURGIQUE DE NORMANDIE, 16, Boulevard Malesherbes, Paris. Feb. 28, 1930, No. 34114. Convention date, Nov. 12, 1929. [Class 124.] A support for perforating-hammers comprises a carriage B sliding on an I girder A and connected with the rear end of the hammer D by a cardan joint D<2>, E, Fig. 6. The front end of the hammer rests in a cradle B<1> fixed to the carriage B and embracing the upper flange of the girder A. A frame A<4> secured to the girder A, serves as a drill guide and prevents lift of the hammers. The latter is fed forward by a frame F pivoted to the carriage B and surrounding the said girder. The curved faces f, f<1> of the frame F, bear on the flanges of the I girder under the action of a spring H and become wedged therewith when the hammer tends to move backward. In a modification, the faces f, f<1> are replaced by free and fixed rollers respectively, the upper roller forming the pivot for the frame.
Patent GB-194024-A (GB)
Title: Improvements in or relating to adjustable racks for airing clothes and like purposes
IPC: D06F57/12
Filed: 1921-12-19
Abstract: 194,024. Kinsey, F. M. Dec. 19, 1921. Clothes racks.-An adjustable rack for airing clothes &c. comprises a post 17 pivoted to a bracket 10 which is secured to, or formed integrally with, a clamp 11 by which the rack is secured to a mantelpiece or the like, and adjustable. rods 25 for supporting the clothes, the rack being held in any angular position by the latch 20 engaging with a pin 24 secured to the bracket. The rack can be supported in an horizontal position by an abutment 19 on the clamp. In a modification, the clamp is dispensed with and the bracket provided with means for securing the rack to a wall. According to the Provisional Specification, the latch is formed with laterally-extending pins adapted to engage with slots formed in the edges and sides of the bracket.
Patent GB-1116624-A (GB)
Title: Reinforced bag
IPC: B65D33/02
Filed: 1964-08-10
Abstract: 1,116,624. Containers. K. BJARNO. 9 Aug., 1965 [10 Aug., 1964], No. 34199/65. Divided out of 1,116, 623. Addition to 1,024,241. Heading B8P. The composite container of the parent specification has a sheet 81, Fig. 1, of relatively stiff material inserted between the bottom of the bag 2 and the outer U-shaped stiffener 1, when the container is erected, to provide it with a flat bottom. A cutout 10 (Fig. 2, not shown) in the base panel 6 of the shell is provided to assist in the insertion of the strip 81.
Patent GB-1160731-A (GB)
Title: A Method of Image Storage and Reproduction
IPC: G03G5/022
Filed: 1966-07-29
Abstract: 1,160,731. Electrostatographic deformation image viewer; spatial filtering. RANK XEROX Ltd. July 29, 1966 [Aug. 2, 1965], No. 34294/66. Headings G2H and G2J. A thermoplastic imaging member carrying a deformation pattern composed of a periodic carrier pattern amplitude modulated by an image to be reproduced is viewed by passing a parallel beam of coherent light through the deformation pattern and demodulating the image signal from the carrier in the projected beam by spatial filtering. As shown in Fig. 2 a beam from a laser 28 at a calculated angle to the optical axis of the viewing system is passed through a deformation pattern 31 on a thermoplastic web 17, and the beam produced is demodulated by forming Frauhoffer diffraction spectra using a lens 33 and filtering off all but one of the diffraction spectra using an apertured screen 34 or a small mirror (not shown), and focused by a lens 35 on to a screen 36. The deformation image may be produced by forming an electrostatic image on the thermoplastic imaging member and softening the member by heat or solvent to form the deformation image, which is fixed by cooling. The electrostatic image may be produced by transfer, by using a modulated electron beam or electrical discharge, or by using a thermoplastic layer which contains or is bonded to, a photo-conductor which is uniformly electrostatically charged and simultaneously or sequentially exposed to an optical image of a screen (to form the carrier pattern) and an optical image to be reproduced.
Patent GB-357002-A (GB)
Title: Improvements relating to electron discharge tubes
IPC: H01J1/28
Filed: 1930-11-14
Abstract: 357,002. Leading - in wires for electric-discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Nov. 14, 1930, No. 343348. Convention date, May 31. [Class 39 (ii).] The leading-in wires for the electrodes of an electric discharge tube are sealed into ferrochromium tubes 10 which are sealed through glass bushes 11 into a ferrochromium disc 2. The wires are separated from the tubes 10 for the greater part of their length to increase the cooling effect.
Patent GB-371335-A (GB)
Title: Improvements in the manufacture and production of styrene and its homologues
IPC: C07C5/333
Filed: 1930-11-14
Abstract: In the process of producing styrenes and other hydrocarbons by dehydrogenating aromatic hydrocarbons having at least two carbon atoms in the aliphatic side-chain in the presence of water or other inert gases according to the parent Specification, the catalysts are replaced by dehydrogenating catalysts comprising more than 3 per cent of their weight of a metal or metals, the oxides of which are readily reducible by hydrogen, the said metal or metals being maintained in a heat-resisting chemical combination during the reaction such as in the form of salts or carbides.  If water vapour or carbon dioxide are present, the said metals or their reducible compounds may be used, if desired in conjunction with the above difficultly reducible compounds. Suitable catalysts include metals of the first and eighth groups of the periodic system, such as copper, silver, gold and the metals of the iron group and their oxides or compounds, e.g. heavy metallates such as vanadates, molybdates, tungstates, chromates, borates or phosphates are suitable when working in the absence of water vapour or carbon dioxide.  Nickel and its compounds may lead to a partial decomposition of the initial materials and the formation of carbon.  In conjunction with the above catalysts there may be used compounds of metals of which the oxides are difficultly reducible such as compounds of tin, antimony or bismuth, and also the catalysts referred to in Specification 340,587 provided that the whole catalytic mass contains more than 3 per cent of its weight of a metal, the oxide of which is readily reducible by hydrogen, in the form of a heat-resistant compound, as defined above.  The reaction may also be applied to alkylated aromatic compounds containing at least two carbon atoms in the aliphatic side-chain, such as ethyl-chlorbenzene, and is carried out at temperatures between 500 DEG  and 700 DEG  C.  Specification 351,310 also is referred to.
Patent GB-1062102-A (GB)
Title: Improvements in or relating to motor-driven wheeled vehicles
IPC: B62D61/00
Filed: 1964-08-21
Abstract: 1,062,102. Motor vehicles. R. A. SLAY. March 1, 1965 [Aug. 21, 1964], No. 34381/64. Headings B7D and B7H. A motor vehicle comprises at least one castor wheel 16, 17 at each end and one or more driving wheels 50 therebetween steerable about a vertical axis. The driving wheel 50 is suspended by swinging arms 22 and a coil spring 25 from a yoke 21 on a platform 45 journalled by a bearing 46 in the vehicle chassis 10 and rotated by a steering-wheel 60 through worm gearing 78 and spur gearing 55, 56, 57. An electric motor or I.C. engine on the platform 45 drives the wheel 50 through belt drives 52, 53. Each castor wheel 16, 17 is similarly suspended from a vertical spindle journalled in a tubular member on the chassis 10. Motors 61 which drive worms 39 engaging wormwheels 35 rotatable on each spindle orientate the castor wheels 16, 17 when required upon coupling the wormwheels 35 to the spindles by cone clutches controlled through flexible cables 74 from levers 82 on a control panel 79. Dials 81 on the panel 79 are connected by flexible drives 77 to further worms engaging wormwheels on the spindles to indicate the attitude of each castor wheel 16, 17. Brakes 26 on the castor wheels 16, 17 communicate through flexible pipes 27, bores in the spindles, and tubes 29 with a master cylinder 31 actuated by a pedal 32. The driving wheel 50 is steerable through 360 degrees or 180 degrees only if a reversible drive is provided, and may be movable vertically from engagement with the ground to facilitate pivoting of the wheel when the vehicle is stationary. In another embodiment (Figs. 1 and 2, not shown) the castor wheels are orientated manually and locked in position by pins engaging a series of apertures. In a further embodiment (Fig. 17, not shown) guide wheels for engagement with a rail or groove are provided at each end of the vehicle, and two laterally spaced steerable driving wheels may be driven differentially to assist the steering action.
Patent GB-1083351-A (GB)
Title: Process for matting leather coatings
IPC: C14C11/00
Filed: 1964-08-24
Abstract: An agent for the matting of leather coatings comprises an aqueous dispersion of a vinyl acetate/dibutyl maleate copolymer. The copolymer may contain 95-60% vinyl acetate and 5-40% dibutyl maleate. The dispersion may also contain polyvinyl alcohol, a leather coating colour, ammoniacal albumin and casein degradation products, turkey red oil, formaldehyde, a butyl acrylate/vinyl acetate or acrylic acid/vinyl chloride terpolymer, oxidized polyethylene wax, hydroxyethyl cellulose, nitro-cellulose, castor oil, methyl cyclohexanone, butanol and/or cyclohexanone.ALSO:A process for matting coatings on leather comprises treating leather with an aqueous dispersion of a vinyl acetate/dibutyl maleate copolymer.  The aqueous dispersion may be applied twice to leather using a plush-roller, dried, again applied twice by means of a spray gun, dried and then ironed at 60 DEG C and 120 atms. pressure. Alternately the aqueous dispersion may be applied twice using a spray gun to leather treated with aqueous coating colours.
Patent GB-933958-A (GB)
Title: 16ªá-alkyl-pregnane compounds and process for their manufacture
IPC: C07J75/00
Filed: 1959-10-12
Abstract: The invention comprises (1) a process for preparing 16a -alkyl-pregnanes by reacting a D 16-20-keto-pregnene with an alkyl magnesium halide in presence of a cuprous halide and tetrahydrofuran and absence of an alkyl halide and decomposing the resulting metalenolate either with a hydrolysing agent to form a 16a -alkyl-20-keto-pregnane or with an acylating agent to form a 20-enol-ester thereof; and (2) the 20-enol-acylates of D 5-3b -acyloxy- 16a -methyl- 20-keto pregnenes, 3b :11a -diacyloxy- 16a -methyl- 20-keto-allopregnanes, 3b -acyloxy-16a -methyl-11:20-diketo-allopregnanes and D 4-3:20-diketo-16a -methyl-pregnenes; and D 5:17(20) -3b :20-diacetoxy- 11-keto- 16a -methyl-pregnadiene and D 5:17(20)- 3b :11a :20-triacetoxy- 16a -methylpregnadiene. Suitable hydrolysing agents are dilute acids or ammonium chloride and suitable acylating agents are the anhydrides, halides or quaternary amides of aliphatic, araliphatic, aromatic or heterocyclic carboxylic acids such as lower fatty acids, phenylacetic acid, p-nitrophenylacetic acid, benzoic acid and substituted benzoic acids and furane-2-carboxylic acid.  Examples describe the preparation of compounds representative of the classes described above and of D 17(20)-3a :20- diacetoxy-11-keto- 16a -methyl-pregnene by the acylating process and of 3a -and 3b -hydroxy- 11:20-diketo- 16a -methylallopregnanes, 3b :11a -dihydroxy-16a -methyl-20-ketoallopregnane, D 5-3b -hydroxy- 16a -methyl-20-keto-pregnene and the corresponding 21-hydroxy compound, 3b -hydroxy-16a -methyl-20-keto-pregnane and 16a -methyl-progesterone by the hydrolysing process, all except the last-named of these 20-ketones being subsequently converted to acetates thereof by reaction with acetic anhydride in pyridine. Similarly, D 4-3,20-dioxo-21-acetoxy-16a -methyl-pregnene is prepared from D 5,16-3-ethylenedioxy- 21-acetoxy- 20-oxo-pregnadiene.  A list of further starting materials containing, in addition to the features disclosed above, D 9(11), D 1:4 and D 3:5 double bonds, free or ketalized oxo groups in the 6-, 7- or 12-positions, and a 3-ethoxy group, is also provided, and reference is also made to the conversion of 3- and 21-ols into esters and ethers thereof.  The conversion of 16a -methyl-progesterone-20-enol acetate to 16a -methyl-17a-hydroxy-progesterone is also described.
Patent GB-199414-A (GB)
Title: Improvements in or relating to machines for the manufacture of glass articles
IPC: C03B9/24
Filed: 1921-12-23
Abstract: 199,414. Hall, R., F. Dec. 23, 1921. Blowing.-In a machine in which the parison moulds, open at the bottom, are lowered on to the surface of the molten glass, the trailing glass being cut off by a pivoted or sliding knife, the mould is adapted to be raised to an intermediate position in which the cut-off is effected, the mould being then raised from the knife before the return stroke of the knife. In the form shown, in which the machine is of the type described in Specification 164,763, the mould 52 is carried on a counterbalanced arm 47 operated by a cam 22 on the central pillar 16. The cam is shaped so that the mould is halted, between its extreme lowered position 52b and its raised position 52a, at the position 52 in which the knife 109 is operated; on the elevation of the mould to the position 52a the knife is returned. The cam may be formed of removable sections of varied contours to vary the timing of the operations and the invention may be applied to machines in which the moulds are carried by vertically reciprocating secondary frames. Specification 165,112 also is referred to.
Patent GB-859496-A (GB)
Title: Improvements relating to the impregnation of liquids with gases
IPC: C12H1/14
Filed: 1956-11-14
Abstract: A process for producing wine or other aqueous liquid impregnated with carbon dioxide or other gas supplied solely from an external source consists in filling the head space above the liquid when maintained in a quiescant condition in a bottle or other stopperable container with gas under pressure in a closed system; the impregnation process being terminated by releasing the pressure of the gas in the head space and then stoppering the liquid in the container.  In the example described wine is first freed from air and other gases by agitation under reduced pressure.  The fluid is then placed in unstoppered bottles which are tilted to about 70 degrees to the vertical in a rack in a pressure vessel where the impregnation process takes place.
Patent GB-620066-A (GB)
Title: Improvements relating to sachets for hair-waving
IPC: A45D7/04
Filed: 1946-11-25
Abstract: 620,066. Hair-waving appliances. EUGENE, Ltd., and VOSS, H. J. Nov. 25, 1946. No. 34908. [Class 131] A sachet for hair waving comprising a pad of absorbent material to be wetted with a liquid and a backing of sheet material, e.g., paper having an integral marginal portion which when the sachet is rolled on a coil of hair will extend beyond the pad towards the patient's head is characterised in that the marginal portion nearest the patient's head is thicker than the rest of the backing sheet. As shown a portion 18 of the backing sheet 10 is folded over a stiffener 16 of thread or thin plastic rod to provide the thickened edge an absorbent pad 15 being placed on a perforated portion 14 of the backing sheet and folded to flattened tubular form open at both ends so that drainage of excess wetting agent is easy and standardised.
Patent GB-396993-A (GB)
Title: Switch device for adapters for electric lamps
IPC: H01R33/94
Filed: 1932-12-10
Abstract: 396,993. Electric-lamp holders. HOCHKÍPPER, P., WINKEL, 0., 49, Gartenstrasse, and ASSMANN, E., 5, Lindenau, both in L³denscheid, Germany, (trading as HOCHKÍPPER & CO., P.). Dec. 10, 1932, No. 35078. Convention date, Dec. 12, 1931. [Class 39 (ii).] An adapter provided with a plug by which it can be connected to a flexible conductor and a switch for remote control consists of an insulating casing formed in two halves secured together by screws &c. and holding the conducting portions in recesses in the halves without further fixing means. The casing a is hollow and the two halves are secured at the upper end by a screw s and at the lower by the holder sleeve h. One plunger f is connected by a rod e to one of the contacts u, and the other to one of two sockets k, the other socket k being connected to the second contact t. Pins o on a plug m connected to a switch q engage the sockets k and are secured against accidental withdrawal by a spring pin l engaging a groove in one of the pins.
Patent GB-941145-A (GB)
Title: Improved sampling device for pneumatically conveyed powdered or granular material
Inventor: FARRAND WILFRED JOHN
IPC: G01N1/20
Filed: 1961-09-29
Abstract: 941,145. Sampling powdered and granular materials. HENRY SIMON Ltd. Sept. 3, 1962 [Sept. 29, 1961], No. 35107/61. Heading B8N. Powdered material conveyed upwards by a gas under pressure in a duct 3 is sampled periodically by opening a port 5 normally closed by a spring-pressed flat-headed valve 7 and opened by moving the valve transversely on an arm 11. The head of valve 7 slides on a flat surface 4a extending round the port 5. The valve is operated via a shaft 12 by an arm 16 and a pneumatic motor 19, the connections between which are not shown. Each sample is collected in a container 22 mounted at the bottom of a screen 15 surrounding the valve. The top of screen 15 is covered by a textile filter 20 held taut by a spring and hoop 21.
Patent GB-830300-A (GB)
Title: Improvements in or relating to tape storage apparatus
Inventor: WALLENS ANTHONY WALTER
IPC: H04L13/06
Filed: 1957-11-12
Abstract: 830,300. Feeding webs. CREED & CO. Ltd. Nov. 12, 1957, No. 35171/57. Class 100(1) [Also in Group XL(b)] Tape storage apparatus comprises a container, feeding means for feeding tape into the container, and indicator means. for indicating when the pressure required to be exerted longitudinally of the tape to advance further tape into the container by the feeding means reaches a predetermined value. As shown, tape 1 is fed through a perforator 2 which perforates tape in accordance with received signals. Tape is fed by a tape sprocket 3 into a guide 4 leading to a container 5 in which tape is stored in loops 7. A portion 8 separate from the main portion of the guide 4 is mounted on a pivoted arm 9. An arm 11 integral with the arm 9 is urged by a spring 13 against a stop 12. In the formation of loops 7, the tape presses back against the lower surface of the portion 8 of the guide 4, the pressure exerted on the portion 8 increasing as the level of loops 7 in the container 5 increases. When the container is filled to a predetermined level this pressure causes arms 9 and 11 to rock against the action of the spring 13, thereby closing electrical contacts 14 which complete an electric circuit to a signal lamp 16, thus warning an operator that the container is filled to the predetermined level. Specification 685,067 is referred to..
Patent GB-306659-A (GB)
Title: Improvements in devices for taking up or absorbing cords or the like flexible bodies
IPC: F21V21/16
Filed: 1927-12-30
Abstract: 306,659. General Electric Co., Ltd., Quance, F. G., and Freeth, T. C. Dec. 30, 1927. Cords, adjusting length of.-A device for taking up a cord, e.g. an electric conductor, between the ends thereof comprises a spool 2 provided with a pair of diametrically disposed apertures 15, 16, and a winding member 10 rotatably secured thereto and having an aperture 17 which can be brought into register with one of the apertures 15, 16 so that the cord which normally passes through the apertures 15, 16 can be engaged thereby.