baber/WOPTO huggingface dataset:
Patent GB-646925-A (GB)
Title: Improvements in or relating to separation of water-soluble oxygen-containing organiccompounds from a mixture containing water
IPC: C07C45/80
Filed: 1947-05-27
Abstract: Non-acidic water-soluble oxygen-containing compounds, such as alcohols, aldehydes, and ketones, particularly those obtained by synthesis from carbon monoxide and hydrogen, are separated from mixtures with water by contacting with a normally liquid hydrocarbon at elevated temperature and elevated pressure sufficient to maintain substantially liquid phase conditions, thereby forming a hydrocarbon-rich phase and a water phase, and separating the oxygen-containing compounds from the former.  The hydrocarbon-rich phase may be treated with a glycol, e.g. ethylene or other olefin glycol or polyolefin glycol, glycerol, ketone, aldehyde or amine, e.g. ethanolamines or ethylene diamine, to form an extract rich in oxygen-containing compounds which may be recovered by fractionation. The hydrocarbon used in the primary extraction may be a petroleum naphtha or a naphtha or higher fraction, e.g. a gas oil, produced from carbon monoxide and hydrogen.  Temperatures are preferably about 175-300 DEG  F.  An aqueous mixture containing 7-8 per cent by weight of primary aliphatic alcohols of C2-C8 or higher, by counter-current extraction with 1-2 times its volume of naphtha at 200 DEG  F. gives substantially complete dissolution of alcohols in the hydrocarbon phase.  Synthesis products of a CO-H2 conversion may be cooled to separate a hydrocarbon phase and a water phase, and the latter extracted with naphtha at about 200 DEG  F. and 150 p.s.i. or more, giving a hydrocarbon phase containing alcohols, aldehydes, and ketones.  The water phase contains some low boiling compounds such as ethyl and propyl alcohols and acetone.  Organic acids up to C4 go to the water phase and higher to the hydrocarbon phase.  Aldehydes and ketones may be separated with sodium bisulphite prior to extraction of alcohols from the hydrocarbon phase or aldehydes and ketones in the extract may be hydrogenated to alcohols.  The separation of the synthesis product and extraction of the water phase may be effected in one vessel by introducing it at 200-225 DEG  F. and 100-300 p.s.i. to the middle of a column, the aqueous phase as it settles being extracted with hydrocarbon lean in oxygen-containing compounds.  The hydrocarbon-rich phase may be extracted with 1 to 1 1/2 times its volume of solvent, such as glycol, at 70-150 DEG  F., the hydrocarbons remaining being scrubbed free of residual solvent and used for the primary extraction or converted to gasoline. Alternatively, the hydrocarbon-rich phase is fractionated to give, for example, a naphtha and a gas oil fraction which are separately extracted.  Solvents for treating the latter fraction to extract C9-C20 alcohols include nitro-methane or ethane, furfural, and lower alcohols and ketones.
Patent GB-836046-A (GB)
Title: New polymers
IPC: C08F16/12
Filed: 1957-05-02
Abstract: Polymers comprising repeating units of the general formula <FORM:0836046/IV (a)/1> in which R represents a divalent aliphatic group having at least two carbon atoms and which may contain, if desired, hetero atoms, R1 represents hydrogen or an alkyl group and R2 represents hydrogen, an alkyl or an aryl group, are made by subjecting a compound of the general formula <FORM:0836046/IV (a)/2> (in which R, R1 and R2 have the above-stated meanings) to anionic polymerization.  Compounds of the above formula specified are vinyloxy - ethyl - methacrylate and vinyloxybutyl-methacrylate.  The anionic polymerization may be carried out at a temperature below - 37 DEG  C. in liquid ammonia with the aid of an alkali metal as a catalyst.  The polymers produced may be further polymerized to a cross-linked state through the free vinyl ether groups by a radical or cationic mechanism, such further polymerization being assisted by catalysts such as benzoyl p  peroxide, azodiisobutronitrile or boron fluoride.  During the further polymerization there may be present monomers which take part in the reaction, such as acrylic esters, methyl methacrylate, acrylonitrile or styrene, and/or polymers of such monomers, which act as fillers.  Alternatively the free vinyl ether groups may be reacted with compounds containing hydroxyl, carboxyl or thiol groups or hydrogen sulphide or a compound yielding same; compounds of these types specified are a polyester derived from ethylene glycol and adipic acid and having free hydroxyl or carboxyl groups (Example 5), thioglycollic acid (Example 6), thioformamide and thioacetamide.  By the addition of hydrogen sulphide across the vinyl ether groups polymers are obtained which contain -SH groups and which may be used as ion-exchange resins or polymerization regulators.
Patent GB-238649-A (GB)
Title: Improvements in disinfecting attachments to water waste preventers
IPC: E03D9/03
Filed: 1925-03-11
Abstract: 238,649. Silvester, M. March 11, 1925. Water-waste preventers, disinfecting - apparatus for. - An arm m clamped to the pivot rod of the flush handle j carries a hinged lifting member n which engages a weight j<1> pivoted on a bell-crank lever h controlling a pair of valves f, g through which a quantity of liquid disinfectant is discharged from a container b, secured inside the cistern, into a tray o. The arm m is adjustable by means of screw and slot connections r, s, and the quantity of disinfectant discharged at each flushing may be varied by means of a nut q.
Patent GB-937160-A (GB)
Title: Improvements in or relating to diazotype reproduction coatings
IPC: C07D207/34
Filed: 1960-04-22
Abstract: Esters of substituted pyrrole carboxylic acids and tertiary alcohols, for example, 2,4-dimethyl-3-carbmethoxy-5-pyrrole carboxylic acid-t-butyl ester <FORM:0937160/IV(a)/1> are prepared by nitrosation of acetoacetic acid t-esters in glacial acetic, the addition of acetoacetic acid ester and zinc dust to the reaction mixture and subsequently pouring into water and recrystallising the separated product.  Acetyl derivatives may be prepared analogously using acetyl acetone in glacial acetic acid with zinc dust, and the 1,2,4 compounds may be prepared by further methylation with dimethyl sulphate.  Examples describe the preparation of 2,4 dimethyl-3-carbethoxy-5 pyrrole carboxylic t-butyl and t-amyl esters; 2,4-dimethyl-3 carbethoxy-2,4-dimethyl-3-carbisopropoxy-, 2,4-dimethyl 3-carb-t and n butoxy-, 2,4-dimethyl-3,5-dicarb-t-butoxy-5-pyrrole carboxylic acid-t-butyl and t-amyl esters; and the preparation of 2,4-dimethyl-3-acetyl-5-pyrrole carboxylic acid t-butyl and t-amyl esters.  The compounds are used with a diazo-compound in a diazotype composition.
Patent GB-396192-A (GB)
Title: Pneumatic spring suspension means for vehicles
IPC: F24C7/00
Filed: 1932-05-18
Abstract: 396,192. Spring suspension ; pneumatic springs. BONELLI, G. A., Kingman, Arizona, U.S.A. May 18, 1932, No. 14166. [Classes 108 (ii) and 108 (iii).] A pneumatic vehicle suspension comprises a yieldable air receptacle 21 for each wheel mounted between abutments 33, 28 secured respectively to the frame and to a lever 12 pivoted at one end 13 to the frame and at the other end to a link 18 connected by a shackle 16 to the frame. The abutments are adjustable to vary the leverage of the axle 19 on the spring. The normal action of the pneumatic spring may be modified by abutment members 52, 58 which are moved horizontally by slidable rods 56, 54 connected to the lower end of the shackle 16. The springs may be interconnected to ensure simultaneous inflation.
Patent GB-1527934-A (GB)
Title: Electrical connectors
IPC: H01R24/50
Filed: 1976-04-07
Abstract: 1527934 Electrical connectors WESTERN ELECTRIC CO Inc 7 April 1976 [15 April 1975] 14172/76 Heading H2E  An electrical connector comprises a housing 11, 20, 30, electrically conductive means, e.g. ground plane assembly 40, disposed therein, and a plurality of jacks each having first and second conductive portions 45, 61. Each first portion 45, which as described is a tubular element having a longitudinal slit, is in electrical contact with the conductive means, and the second conductive portions 61 are for electrically contacting a respective one of a plurality of conductors. A first plurality of conductive resilient members, e.g. springs 42, are provided, one end of each being in electrical contact with the assembly 40, a second plurality of conductive resilient members, e.g. springs 60, also being provided, each having one end in electrical contact with a respective second conductive portion 61. The other ends of the members 42, 60 effect, in use, external electrical contact. As described, the housing has an elongate slot 16 within which said other ends of springs 42, 60 are located. The connector further includes a first and a second plurality of terminals 43, 67 which extend from the housing end opposite to that having the slot 16, each first terminal 43 being in electrical contact with ground assembly 40, and each second terminal 67 being in electrical contact with a respective one of a third plurality of springs 65 having an end 66 within slot 16. The ends 48 of springs 42 within the slot 16 are situated opposite ends 62, 66 of springs 60, 65 alternately. The jacks as described are coaxial jacks for receiving jack plugs 50 which are prevented from being accidentally removed by locking springs 44 having a respective tab 47 at its free end which enters a recess 54 in a backplate 53 of plug 50 when the plug 50 is mated. The ends of the first, second and third springs 42, 60, 65 in slot 16 are for contacting metallic strips on opposite faces of a printed circuit board or ceramic substrate, and the first and second terminals 43, 67 are for wire wrapped termination of low frequency signal lines.
Patent GB-927416-A (GB)
Title: Improvements in and relating to machines for dispensing strip material
IPC: B65H35/00
Filed: 1961-04-19
Abstract: 927,416. Tape dispensers. BETTER PACKAGES Inc. April 19, 1961 [April 22, 1960], No. 14182/61. Class 18.  A machine for dispensing strip material such as gummed package sealing tape comprises intermittently-acting tape-dispensing means, electrical means including a resettable switch for starting and stopping the tape-dispensing means, a tape-contacting element movable by the advancing tape being fed, a switchactuated element connected with the tapecontacting element and settable in a condition to actuate the switch to start the feed of the tape when a preceding piece of tape is removed from contact with the tape-contacting element, and means for actuating the switch to stop the tape-feeding operation immediately on completion of the feeding of a measured length of tape. As shown in the drawings tape from a supply-roll 12 is fed between feed-rolls 14 and 16, the roll 16 being driven from an electric motor 17 by a chain 18. Roll 14 is carried by an arm 20 actuated by a lever 24, the roll 14 being moved towards the roll 16 to cause feeding of tape when energisation of a solenoid 28 pulls down a link 26 and the lever 24. The lever 24 forms part of a yoke 30, swingable about a shaft 32 and carrying a knife 34 which coacts with a fixed blade 36. When the solenoid 28 is energized, the knife 34 is raised to its uppermost position and on de-energization thereof is moved downwardly under the action of a spring 38 to sever a fed length of tape, feeding of the tape being stopped simultaneously by withdrawal of the roll 14. A severed length of tape is withdrawn between moistening brushes 40 and a pivoted pressure plate 44 and the feeding of the next piece of tape is initiated by a feeler element 50 mounted above the pressure plate and which drops down through a slot therein when the severed length of tape has been completely withdrawn and through a lever arrangement closes a switch which energizes the solenoid 28. Preferably the motor 17 is started and stopped simultaneously with the energization and deenergization of the solenoid. The length of the strip to be delivered is measured by means of a reciprocable control disc 60 driven during and by rotation of the roll 16 through a friction wheel 64 and returnable to a zero position by a spring when the friction wheel is disengaged from the control disc. The control disc carries a contact member which during rotation thereof is brought into contact with and opens the switch of the solenoid 28 and motor 17 thereby stopping feeding of the tape, the length of tape fed being determined by the arc of travel of the contact member. A manual control switch, normally shunted out, may be provided for starting and stopping the feed of tape. Specification 565,623 is referred to.
Patent GB-1378305-A (GB)
Title: Method and apparatus for manufacturing briefs
IPC: A41F9/02
Filed: 1972-03-27
Abstract: 1378305 Making briefs BONDS-WEAR PTY Ltd 27 March 1972 [30 March 1971] 14192/72 Heading A3V [Also in Division D1] Briefs are made by cutting a web of fabric lengthwise to obtain strips of profiled garment blanks; forming a transverse line of slits between successive blanks and along the sides of a gusset flap on each blank; gripping the leading edge of the first blank under grippers 6/3 on a forming board 61 and tensioning the blank to position the junction of the first and a second blank under the grippers of a second forming board there being a plurality of such forming boards equally spaced along an intermittently driven first conveyor on which they are supported and driven by shafts 6/12 and chains 6/13; completely severing the two blanks and turning the forming board through 180‹ by cam means acting on an arm 6/14 thereby folding the blank over the sharp end of the wedge-shaped forming board; applying brushes to the now-uppermost surface of the blank to engage its free edge under grippers 6/3 on the other face of the forming board;; aligning and seaming the upper and lower side edges of the blank to form the side seams of the finished briefs; completely severing the gusset flap and temporarily glueing it into position on the crotch portion of the finished briefs; forming a closed elastic waistband on the apparatus described in Specification 1,374,030 and applying the waistband round the waist opening of the blank; temporarily heat sealing the preglued waistband into position; transferring the half-finished briefs from their forming board to a body form C1 on a second endless conveyor intermittently driven in synchronism with the first using pneumatically operated arms and grippers; permanently sewing the elastic waistband in place; inverting the body form and trimming and finishing each leg opening of the briefs by a mechanism comprising a sewing machine on a carrier C11 which describes a circle about a central locating shaft C8 while accommodating the wavy profile of the leg opening by means of a cam and follower C26, C27 elastic thread from a spool C35 being thereby sewn into the leg opening; and stripping the finished briefs from the body form.
Patent GB-124668-A (GB)
Title: New or Improved Method of Super-imposing Films of Material to be Dried on a Pair of Heated Cylinders, the same being also applicable for Evaporating Moisture from Solids.
IPC: F26B17/28
Filed: 1918-09-02
Abstract: 124,668. McIntyre, J., and Milne & Son, J. Sept. 2, 1918. Film evaporators. - In apparatus for drying liquids or semi-liquids on heated rollers, the material being applied at several points of the rollers in successive layers, the material is placed in the hopper D and is applied to the drying- rollers A, B by feed-rollers E, F at the points 1, 1. Material adhering to the rollers E, F is removed therefrom by scrapers X and falls on to the rollers A, B at the point 2. A third layer may be applied at the points 3, 3 by feed-rollers I, J. The dried material is removed from the rolls A, B by scrapers G, H.
Patent GB-943672-A (GB)
Title: Improvements in the preparation of hydrated ferric oxide for use in gas purification
IPC: C01G49/06
Filed: 1961-04-20
Abstract: Hydrated ferric oxide is produced by reacting an aqueous solution of a ferrous salt which contains at least 100 grams per litre of another water-soluble salt with such amounts of a base that a pH of 4 to 8 is obtained, and with oxygen, chlorine or hydrogen peroxide at between 0 and 75 DEG  C. and the hydrated ferric oxide obtained is separated, washed with water and dried, said other water-soluble salt being one which does not react with ferrous or ferric ions to form water-insoluble salts. Suitable salts are: chlorides, sulphates, nitrates, acetates and bromides of the alkali metals, the alkaline earth metals and ammonia. Preferably the salt has the same anion as the ferrous salt and the same cation as the base used.  Ferrous chloride and sulphate may be used as the ferrous salt.  The process is carried out by passing air or oxygen into the solution of the ferrous salt and other salt and adding the lease little by little to maintain the pH in the range 4-8, preferably 5.5-6.5.  The solution is preferably saturated. The base may be an aqueous solution, pure gas, a gas and inert gas mixture e.g. alkali metal and alkaline earth oxides, sodium hydroxide potassium hydroxide, suspensions of calcium oxide and hydroxide, ammonia or organic amines. The entire process may be continuous, a fixed amount of solution being regularly drawn off from the reaction vessel, from which the ferric oxide is precipitated. The salt solution is then cooled to crystallize out the salt, mixed with fresh ferrous salt and returned to the reaction vessel.  The hydrated oxide is suitable for gas purification.
Patent GB-406520-A (GB)
Title: Improvements in and relating to warp tension adjusting devices for looms
IPC: D03D49/06
Filed: 1933-05-18
Abstract: 406,520. Tensioning and letting - off warps in looms. NOGAMY, Y., 55, Arahata Gokisocho, Nakaku, Nagoya, Japan. May 18, 1933, No. 14365. Convention date, Dec. 2, 1932. [Class 142 (ii).] Rotation of the warp beam is controlled by the varying tension of the warp by connecting the pivoted back bearer to a slotted link 1 that is operatively connected to the sley sword, or other reciprocating or oscillating member of the loom by means of a link 14, and to the pawl and ratchet mechanism on the beam shaft 17. The link 1, which is connected to the back bearer by a link 6, is displaceable, under the influence of warp tension, relatively to a fixed pivot 5 and has a pin 3 that engages a slot 10 in an arm 8 of a pivoted double armed lever 8, 9, the arm 9 having a slot to accommodate an arm 16 on the beam shaft operating pawl.
Patent GB-1428731-A (GB)
Title: Apparatus for reading records by optical means
IPC: G11B7/1381
Filed: 1973-03-26
Abstract: 1428731 Automatic control of focus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 March 1973 [29 March 1972] 14452/73 Heading G3R [Also in Division G1] A system for determining the focus of a radiation beam on a track on an information carrier (disc) comprises a pair of radiation detectors arranged one after the other in the direction of the track length and means for deriving a focus error signal from the relative sign and magnitude of the phase difference between the outputs of the two detectors when the carrier is in motion. In The Figure, if the plane of the disc is at e, in the focal plane of lens 18, information from a track 3 is received simultaneously by both detectors 10' 10". If there is a focus error (e.g. the disc is at g or f) an information element b cuts the extremes of beam at different times when travelling in the direction 15 so that there is a time (i.e. phase) difference in the outputs of the two detectors. This is processed by unspecified electronic means to produce a control signal for "known means" for correcting the focus. A wedge prism (14), Fig. 5 (not shown) may be placed behind condenser 19 to allow wider separation of the detectors. To avoid errors due to radial displacement of the tracks a further lens may be placed in front of the condensors Fig. 6, (not shown) and the two detectors may form a single integrated circuit element. The detectors in the above are also used to reproduce the information signal, but there may also be provided a similar system using a wide beam and specially recorded marks, e.g. in the frame flyback period of a video signal. This system Fig. 7 (not shown) has an image forming slit in front of the detectors combined with a grating structure for radial position control as described in Specification 1391335. The record may be in the form of radiation reflecting rather than absorbing form. The information may be in the form of light/dark areas, sinusoidal density changes or thickness changes (which affect the phase of the light beam).
Patent GB-825786-A (GB)
Title: A weft detection device for looms
Inventor: WINSTANLEY JAMES WILLIAM
IPC: D03D51/34
Filed: 1957-05-07
Abstract: 825,786. Weft detecting arrangements for looms. BRITISH NORTHROP Ltd., [formerly BRITISH NORTHROP LOOM CO. Ltd.]. May 7, 1958 [May 7, 1957], No. 14479/57. Class 142(2) Light from a source 40 is reflected by a plate 42, through a lens 44 on to the pirn in a shuttle in the box and if the pirn is substantially exhausted, the light is reflected back on to a photo transistor 46. The output signal from the photo transsistor passes to an amplifying transistor and subsequently operates a relay. The relay causes a solenoid to initiate weft replenishment if fitted to a single box loom or, if fitted to a multiple box loom, causes the setting of a selector mechanism whereby that particular shuttle is replenished when it next arrives at the replenishing side of the loom. Two or more amplifying transistors can be arranged in series. The pirn may have a band of bright reflecting material fixed thereto. The photo transistor can be mounted on the end of the main tube 34 and the portion 38 be dispensed with. A thermistor is provided to maintain the characteristics of the photo transistor during any temperature rise.
Patent GB-1185657-A (GB)
Title: Improvements in Fork Loading Trucks
Inventor: JACOBSSON KNUT FOLKE
IPC: B66F9/075
Filed: 1967-03-30
Abstract: 1,185,657. Stabilizing devices. K. F. JACOBSSON. 30 March, 1967, No. 14479/67. Headings B7D and B7J. A fork lift truck comprises a lift tower 4 having guide means 5 for a fork carrier 6. Stabilizing arms 10 are pivoted on the lower portion of the tower, at each side, upon shafts 9 parallel to the lift arms, and may be raised to a stowed position shown in broken lines, and lowered to a stabilizing position, by hydraulic jacks 14. Each arm may carry a swivel wheel 11. An abutment 16 on each jack prevents the jack and stabilizing arm from assuming an in-line position. The extended length of the hydraulic jacks may be additionally screw adjustable.
Patent GB-659464-A (GB)
Title: Improvements in a valve mechanism for container filling apparatus
IPC: B67C3/26
Filed: 1949-05-31
Abstract: 659,464. Filling bottles &c. CREAMERY PACKAGE MFG., CO. May 31, 1949, No. 14584. Convention date, July 9, 1948. [Class 125(ii)] A valve mechanism for a bottle filling apparatus comprises a sleeve 1 secured to a tank containing liquid, a slidable sleeve 4 and a vent tube 9 carrying valves 10 and 11 supported by a plate 16 so that in an intermediately open position as shown in Fig 3 the vent tube 9 and valves 10 and 11 are tilted relatively to the discharge orifice and remain in this position until the dependent legs 18 of the plate 16 contact the upper edge of the sleeve 4 on further opening of the valve mechanism moving them back into a vertical position. In a modification the dependent legs 18 of the plate 16 are replaced by an annular member having a conical under-surface formed with recesses to provide liquid flow passages and the upper end of the sleeve 4 is tapered.