baber/WOPTO huggingface dataset:
Patent GB-190672-A (GB)
Title: Improvements in and relating to educational boards
IPC: G09B1/10
Filed: 1922-03-04
Abstract: 190,672. Watkins, V. O'N. March 4, 1922. Models; blackboards. - An educational appliance comprises a series of figures of animals, people, and other objects mounted on pegs, for illustrating the theme of a story, and a reversible support 3 having upon one face a blackboard and upon the reverse face a panel 9 perforated throughout to receive the pegs, for appropriate arrangement of the figures by the pupils as the story is read by the teacher, the panel being removable so that the setting can be used as a model for drawing upon the blackboard. The support 3 is in the form of a tray, with a drawer at one end to contain the figures, and is provided at the corners with sockets 4 for reversible attachment upon legs 1.
Patent GB-365385-A (GB)
Title: Loading chute
IPC: B65G37/00
Filed: 1931-03-02
Abstract: 365,385. Endless chain conveyers ; jigging conveyers. ZURKIN, G., Peterswald, Land Mõhren, Silesia, Czecho-Slovakia. March 2, 1931, No. 6477.. [Class 78 (i).] Coal is transferred from a jigging conveyer 1 to a mine tub by an endless chain conveyer 10 of the scraper type which is driven by the jigging conveyer through connecting-rods 3, 4 and pawl-and-ratchet mechanism. One end of each rod is pivoted to a rocking arm 12 provided with a spring-loaded pawl 14 which engages one of the toothed wheels 15, 16 keyed on a common shaft 13. The driving sprockets 17 of the conveyer are keyed on the same shaft. The pins 11 connecting the rods and rocking arms are inserted in various apertures 19 in the arms in order to vary the stroke. The framework 6 of the conveyer is attached to pit props 5 at any height by clamps 21.
Patent GB-565793-A (GB)
Title: Improvements in or relating to fuel injection devices for internal combustion engines
IPC: F02M61/14
Filed: 1943-04-22
Abstract: 565,793. Burners. DAVEY, PAXMAN, & CO., Ltd., and PAXMAN, E. P. April 22, 1943, No. 6487. [Class 75 (i)] [Also in Group XXVII] An injection nozzle comprisesa valve member c formed of com pressible materia adapted to be raised by fuel pres sure from a fixed, seat m formed in a steel nozzle r. The valve member d has a steel coated conical tip and a cylindrical body provided with radial passages k which connect a space between the valve and the nozzle r with an axial passage j forming a continuation of a fuel inlet pipe o. The outer end of the valve, containing the passage j is enlarged to provide a shoulder h adapted to be pressed against the end of the nozzle r by a screwed sleeve q engaging a shoulder n on the inner end of the inlet pipe o, the sleeve q being screwed into a casing a, itself screwed into the cylinder head and housing the valve assembly. The nozzle may be protected from combustion gases &c. by a perforated button l of heatresisting material formed as described in Specification 563,163, [Group XXVII].
Patent GB-822205-A (GB)
Title: Improved process for the production of -a-estradiol
IPC: C07J1/00
Filed: 1957-02-26
Abstract: a -Estradiol is prepared by reacting at an elevated temperature an alkali metal acetate and a 17-tosyl derivative of b -estradiol having the general formula <FORM:0822205/IV (a)/1> wherein R represents hydrogen or an acyl or tosyl radical, in the presence of dimethylformamide to form the 17-acetoxy derivative of a -estradiol which is then saponified.  The 17a -acetoxy derivative may be isolated before the saponification step, e.g. by extraction with chloroform, and purified by cystallization.  The alkali metal acetate may be potassium acetate, the reactants being preferably refluxed. The saponification is preferably carried out with methanolic or ethanolic potassium hydroxide solution and the resulting crude a -estradiol is precipitated by acidification and purified by crystallization from benzene.  Suitable reactants for the above process are 3-benzoyl-17-tosyl-, 3,17-ditosyl-, and 17-tosyl-b -estradiol.  The above process may be modified in that the 17-tosyl derivative of the above general formula is prepared by reacting b -estradiol or a 3-acylated derivative thereof with tosyl chloride in the presence of a tertiary base, e.g. pyridine or methylethypyridine. The examples a -estradiol is prepared and the intermediate compounds 3 - benzoyl - 17 - tosyl - b  - estradiol, 3,17 - ditosyl - b  - estradiol, 17 - tosyl - b -estradiol and 17a -acetoxy-estradiol.
Patent GB-1102555-A (GB)
Title: Electromagnetically-actuated reciprocating piston pumps for liquids
IPC: F23K5/14
Filed: 1965-02-15
Abstract: 1,102,555. Reciprocating motors. W. EBERSP€CHER, and H. EBERSPACHER, [trading as J. EBERSP€CHER]. 15 Feb., 1965 [14 March, 1964], No. 6508/65. Heading H2A. [Also in Division F1] An electromagnetically actuated pump for liquids comprises a piston 5 connected to an armature 7 by a piston-rod 6 which adjacent to the armature is of non-magnetic material, a magnet coil 4 co-axial with the pump cylinder, resilient piston biasing means 9 and inlet and outlet valves 10a and 2. The biasing spring 9 may be of non-magnetic rubber material. Resilient stops 20 and 26 are provided for the piston and armature. In a further embodiment, Fig. 3 (not shown), a valved inlet passage (50) in the cylinder wall communicates with the pumping chamber (34) via an annular groove (51) and an axial passage (52) in the piston. In another embodiment, Fig. 4 (not shown), the pumping chamber (34) communicates with the pump inlet via ducts (c) defined between the piston and cylinder and an annular groove (33) in the cylinder. The armature (7) acts as a valve to close the inlet when biased into engagement with the stop (26) by spring (9).
Patent GB-1370191-A (GB)
Title: Burners for liquid and or gaseous fuels
IPC: F23D17/00
Filed: 1972-02-11
Abstract: 1370191 Burners DR SCHMITZ & APELT INDUSTRIEOFENBAU GmbH 11 Feb 1972 [18 March 1971] 6563/72 Heading F4T A burner for liquid or gaseous fuels comprises a fuel outlet (16), Fig. 1 (not shown), surrounded by a swirl chamber 9 definedat its outlet by a convergent-divergent constriction 12, 13 and an air inlet means 17 providing a substantially tangential air flow into the swirl chamber 9, the acoustic capacity and/or the acoustic inductivity, of the burner being variable. The acoustic capacity is varied by a longitudinally slidable rear wall (20) of the swirl chamber, Fig. 2 (not shown). The acoustic inductance may be varied either by means of a ring of air inlet holes (18), Fig. 1 (not shown), in the. swirl chamber which holes can be closed or opened by a ring (19), or by a slidable cover-plate 23 and an opening 22 at the rear end of the swirl chamber. To prevent the incoming air from apertures 22, 18 from interfering with combustion a pump 25 is used whose pressure side is connected to a tubular channel 24 surrounding the burner, and the suction side connected via conduit 27 and a valve 28 to a zone in the swirl chamber directly upstream of the fuel outlet. The valve 28 is adjustable so that selective amounts of air can be removed from the combustion zone. Apertures 22 and 18 may be covered by a wire screen. The fuel supply means may be such that oil and/  or gas can be burnt in the combustion chamber.
Patent GB-705680-A (GB)
Title: Stabilization of fats and oils
IPC: C11B5/00
Filed: 1951-03-19
Abstract: Non-foaming fatty glycerides, particularly those used for deep fat frying and cake- or pastry-making (i.e. "shortenings"), are stabilized against oxidation and gum formation by the addition of 0.03 to 0.5 p.p.m. of an alkyl silicone in which the alkyl groups are methyl or methyl and ethyl, and which has a viscosity of at least 50 centistokes at 20 DEG C.  The preferred concentration of the silicone is from 0.05 to 0.2 p.p.m., and silicones with viscosities as high as 1,000,000 centistokes at 25 DEG C. may be used. These additives also inhibit destruction of tocopherol, which is generally present in fats used in deep-frying processes. Reference is made to the prior use of propyl gallate, syringic acid, noc-di1-hydro-guaiaretic acid and hydroquinone for the stabilization of oils and fats against oxidation.ALSO:Shortenings used for cake or pastry making and deep fat frying are stabilized against oxidation and gum formation by the addition of 0.03 to 0.5 parts per million of an alkyl silicone in which the alkyl groups are methyl or methyl and ethyl, and which has a viscosity of at least 50 centistokes at 25 DEG  C.  The preferred concentration of the silicone is from 0.05 to 0.2 p.p.m., and silicones with viscosities as high as 1,000,000 centistokes at 25 DEG C. may be used.  These additives also inhibit destruction of tocopherol, which is generally present in fats used in deep frying processes.  Reference is made to the prior use of propyl gallate, syringic acid, nor-di-hydroguaiaretic acid and hydroquinone for the stabilization of oils and fats against oxidation.ALSO:Non-foaming fatty glycerides, particularly those used for deep fat frying and cake or pastry making (i.e. "shortenings"), are stabilized against oxidation and gum formation by the addition of 0.03 to 0.5 parts per million of an alkyl silicone in which the alkyl groups are methyl or methyl and ethyl, and which has a viscosity of at least 50 centistokes at 25 DEG C.  The preferred concentration of the silicone is from 0.05 to 0.2 p.p.m., and silicones with viscosities as high as 1,000,000 centistokes at 25 DEG C may be used.  These additives also inhibit destruction of tocopherol, which is generally present in fats used in deep frying processes.  Reference is made to the prior use of propyl gallate, syringic acid, noc-di-hydro-guaiaretic acid and hydroquinone for the stablilization of oils and fats against oxidation.
Patent GB-215888-A (GB)
Title: An apparatus for regulating the braking action of railway vehicle brakes operated by compressed air
IPC: B60T15/54
Filed: 1923-03-07
Abstract: 215,888. Heme, J. March 7, 1923. Fluid-pressure.-Valve mechanism adapted to be interposed in the .exhaust passage from the usual triple valve to permit of a graduated release of the brakes comprises a piston 3 subject on its two sides respectively to the pressure in the train-pipe connected at 9<1> and that in the auxiliary reservoir connected at 11<1>. The exhaust passage from the triple valve is connected at 8 and is controlled by a valve 14 on a rod 4 secured to the piston 3. Normally with the train-pipe and auxiliary pressures equal and by reason of the effective area of the piston exposed to the train-pipe pressure being less than that exposed to the auxiliary reservoir pressure the valve 14 is held seated. When, however, the train-pipe pressure is raised the piston 3 is moved to the right to unseat the valve permitting escape of air from the brake cylinder by the ports 13 until the supply of air to the trainpipe having been stopped, the pressure therein equalizes with that in the auxiliary reservoir and the valve re-closes.
Patent GB-104091-A (GB)
Title: Improvements in and relating to Two-stroke Internal Combustion Engines.
Inventor: GILL JAMES HERBERT WAINWRIGHT
IPC: F02B25/00
Filed: 1916-05-09
Abstract: 104,091. Gill, J. H. W. May 9, 1916. Regulating; valves.-To augment the charge entering the crank case of an engine using crankcase compression, four blades 7 are secured to the crank disks, the charges being drawn in through an orifice (not shown) controlled by a port in one end of the crank shaft. An exhaust valve 17 in the head of the cylinder is actuated bv a longitudinally adjustable cam 20 which closes the valve at different points of the compression stroke to vary the compression at starting or during normal running.
Patent GB-512485-A (GB)
Title: Process for the manufacture of artificial resins
IPC: C08G8/30
Filed: 1938-03-03
Abstract: 512,485. Resinous polymers; phenols phenol ethers. CARPMAEL, A. (I.G. Farbenindustrie Akt.-Ges.). March 3, 1938, No. 6752. [Class 2 (iii)] Rosins are prepared by heating polyhydric phenols containing at least two allyl groups or allyl groups containing on one or more of the three carbon atoms, methyl substituents, the groups being either attached to the aromatic nucleus direct or, in the form of ethers, by means of the oxygen atom. Suitable bodies include allyl derivatives of dihydroxydiphenyl, dihydroxynaphthalene, polyhydroxypolyphenyl paraffins, cycloparaffins or olefines. In examples, resins are prepared by heating an allyl or crotonyl derivative of 4-4<1>-dihydroxydiphernldimethylmethane, or allyl derivatives of 1-1-di-(4- hydroxyphenyl)-cyclohexane, resorcinol, -7- dihydroxynaphthalene or 4-4'-dihydroxydiphenylsulphone. The allyl or crotonyl derivatives of the phenols are prepared by treating the phenol in solution in ethyl alcohol with allyl or crotonyl chloride in the presence of caustic soda.
Patent GB-512713-A (GB)
Title: Improvements in and relating to weft stop motions for looms for weaving
IPC: D03D51/00
Filed: 1938-03-04
Abstract: 512,713. Weft stop-motions for looms. HUDSON, I. March 4, 1938, No. 6782. [Class 142 (i)] A weft-fork stop-motion comprises a lever L, Fig. 2, the nose L<1> of which is engaged by a mask B, operated by the weft fork, covering a gap B<1> in the slay A when no weft is present so that the lever is turned to apply a band brake by means of a compression spring mounted on a rod R between one end of the brake band and a collar on the rod, the brake beirfg applied gradually when the pressure of the spring overcomes a weaker spring tending to release the brake. At the same time, the starting handle H is knocked out of its notch by a buffer (not shown) carried by the lever L. When the handle H is knocked off, either by the buffer or by hand, a cam shaped lever D<6>, which was held up by a stud D<3> on the handle H, is released allowing a spring D<2> to pull down a bell-crank lever D<1> the nose of which applies pressure to the rod R to partially apply the brake. Before restarting the loom after stoppage by the weft. fork, a lever X is pulled from under a bell crank lever F which by means of a rod V normally supports the lever L. The lever L is mounted on its pivot by means of a slot so that, when released, its nose L' falls below the level of the mask B. In this position the stop-motion is out of action and pressure on the brake due to the lever L is removed. Pressure is still being applied by the spring D<2> and to release the brake completely the bell-crank lever D' is lifted on to a gravity catch D' pivoted on the starting handle. The slay is then brought to the back centre and the lever L lifted to its normal position. On moving the handle H to start the loom, the catch D<4> moves from under the lever D' but the lever is prevented from falling by the stud D<8> engaging the cam lever D'. The mask B, Fig. 3, is operated by a link B' reciprocated by the weft-fork which may be as described in Specification 196,000, [Class 142 (i)]. The link B<7> has a slot engaging a pin B' on the mask B. When weft is present the mask is moved to uncover the gap B'. The stop-motion may be put out of action for one pick by lifting the link B' and turning the mask B so that the pin B' enters a narrow extension of the slot. When the link B' moves to the left after the first pick, the pin B' regains its normal position in the slot.
Patent GB-515468-A (GB)
Title: Improvements in or relating to processes of extracting and refining glycerides and products resulting therefrom
IPC: C11B7/00
Filed: 1938-03-04
Abstract: 515,468. Drying-oils ; extracting fatty oils and acids; oil-cake; phosphatides. PITTSBURGH PLATE GLASS CO. March 4, 1938, No. 6808. Convention date, May 22, 1937. [Class 91] [Also in Group IV] Highly unsaturated fractions of glycerides and acids are extracted from crude glyceride oils or materials containing them by treating with furfural at an effective temperature of at least 77‹F. to produce 2 liquid phases. The solvent power of the furfural may be increased by adding phenol or pyridine in a proportion not unduly impairing the selective action. The residual oil -the more saturated fraction-with or without hydrogenation, may be used as food or soap stock. The acid and lecithin content of the extract solution may be reduced by adding thereto water or methyl, ethyl, or other,alcohol. The crude oil may be dissolved in a paraffinic hydrocarbon such as hexane ; on treatment with furfural the glycerides containing conjugate double bonds are dissolved out. Materials subjected to extraction include linseed soya, hempseed, cottonseed, perilla, tung, oiticica and fish oils, and meals or pulps of the seeds, fish, or other oil-source. The extracted meal or pulp is exceptionally rich in phosphatides if the extraction temperature is not too high; the phosphatides may be extracted therefrom by solvents such as petroleum ether, and used as emulsifying and wetting agents, e.g, in paints, drugs, and food products. In examples :-(1) Linseed meal is extracted with 1 or more vol. of furfural, leaving cake retaining most of the phosphatides; the solution of unsaturated and saturated glycerides and fatty acids with colouring matters sterols and some phosphatides is reduced in temperature to 104-106‹F., whereby the phosphatides and highly saturated acids separate and are removed; water is then added to the solution causing separation of the unsaturated glycerides ; the remaining solution is heated to distil off water and furfural, leaving acids, sterols, and colouring matter ; the acids are recovered by vacuum distillation. (2) Fish oil is extracted with a mixture of 3 vols. of furfural and 1 vol. of phenol; water is added to the solution and the mixture cooled to 68‹F. to complete separation of the drying fractions. (3) Soya bean meal is extracted at above 122‹F. with 2 vols. of furfural; water is added to thehot solution to separate lecithin as a sludge. (4) 3 per cent. of phosphatides obtained according to the invention is added to alkalirefined linseed oil to improve its power of wetting titanium oxide or other pigment.
Patent GB-318012-A (GB)
Title: Improvements in or relating to man-hole covers and frames and the like
IPC: E02D29/14
Filed: 1928-03-05
Abstract: 318,012. Elkington, V. March 5, 1928. Manhole frames and covers.- Rectangular manhole, grating, and like frames a are constructed in sections a<1>, a<2>, Fig. 2, united at the corners so that the bevelled seatings a' can be more readily machined. The sections are shown connected by bolts a<5>, Fig. 9, passing through mitred joints which have recesses f preferably undercut for the reception of lead or type metal poured in through suitable apertures to key the sections together. The cover b may also be formed in similar sections mitred together and connected by angle brackets d. The cooperating seats a<7>, b<1> on the frame and cover may have longitudinal grooves a<8>, b<4> filled with oil to form a water or gas seal. The cover is secured by a screw b<7> at one side and projections a<10> on the opposite side of the frame engaging recesses b<8> in depending projections b<6> on the cover. To facilitate the removal of the cover bv a rising lateral movement, the projections b<6> engage parallel and partly inclined rails a<9> on each side of the frame. The cover may be filled with concrete reinforced with wire e', Fig. 9, or wood blocks may be placed in cells in the cover. Figs. 13 and 14 show the invention applied to a gully grate.
Patent GB-268746-A (GB)
Title: Improvements in or relating to the manufacture of electrical condensers
IPC: H01G13/00
Filed: 1927-03-12
Abstract: 268,746. Lorenz Akt.-Ges., C. March 31, 1926, [Convention date]. Electric con. densers. - The end portions 1 - - 1<11> of the plates of an electrical condenser are clamped between jaws 3, 4 and a mass of metal 8 is clamped in jaws 6, 7 advanced by a screw 13 into such a position that an arc occurs between it and the end portions whereby it is welded thereto. The jaws 4 7 are connected tc the secondary of a transformer. The welded - on portion may serve as a terminal.
Patent GB-946488-A (GB)
Title: Novel pyrimidine compounds and a process for the manufacture thereof
IPC: C07D239/69
Filed: 1961-07-28
Abstract: The invention comprises 4-amino-5,6-di (lower-alkoxy)-pyrimidines (the word "lower" indicating a group of 1-6 carbon atoms) and their preparation by heating a 4-amine-5-(lower alkoxy)-6-halogeno-pyrimidine with an alkali metal alcoholate solution containing a lower alkoxy group. Specification 946,487 also is referred to.
Patent GB-741318-A (GB)
Title: Improvements in or relating to winding machines especially as employed in the textile and associated industries
IPC: B65H67/04
Filed: 1953-03-13
Abstract: 741,318. Winding yarn &c. RAWSON & SONS, Ltd., J., and FREELAND, C. A. March 12, 1954 [March 13, 1953], No. 7046/53. Class 120 (2). In a pirn &c. winding machine, the release of a fully wound pirn &c. from winding position and the feeding, positioning and securing of an empty tube &c. in winding position is effected by fluid pressure actuated devices, means being provided for controlling the sequence of operation of those devices. As a pirn is about to be completed, a slidable carriage 37 carrying the yarn traverse guide 38 (not shown) and feeler member 39, brings a cam 130 into contact with an arm 128 and also opens the motor switch 147 to stop the drive. The spring-biased catch lever 124, pivoted at 125, is disengaged from a collar on a spring-urged valve rod 92a to open a valve 91 and permit hydraulic fluid to move the piston 98, the rod 99 of which swings the arm 99b and the shaft 61 to rotate a shaft 54 and withdraw the centre 40 to allow the completed pirn to fall into a shoot 135. A pin 89 is also moved by the shaft 61 to lift the foot 20 of a movable rack, comprising pivoted levers 18, to lift pirn &c. tubes (fed to pivoted levers 11 of a stationary rack from a magazine 21, 22), the topmost tube falling over the ram 49 on to a pair of transfer levers 43. Hydraulic fluid now enters the cylinder 105 to move the piston 106 which, through a lever 62 (not shown) returns the carriage 37 to its starting position for the commencement of a new wind and positions the yarn end across the driving centre 41. Hydraulic fluid now enters the cylinder 113, by way of a non-return valve 111, to move the pis-  ton 114 and actuate the lever 47 to move the transfer levers 43 and position the new pirri tube &c. between the centres 40, 41. At the same time the yarn end is trapped by a spring-biased vertical roller 76 (not shown) and severed from the pirn in the shoot 135 by blades 72, 74. The return of the hydraulic piston 98 allows the centre 40 to close upon the empty tube and trap the yarn end between the empty tube and the driving centre 41. The movable rack of the tube-feeding device is also lowered, the empty tubes being supported on the levers 11 of the stationary rack. The return of the piston 114 brings back the transfer lever 47 which through the shaft 48 and a trip device 150b (not shown) closes the motor switch 147 to restart the driving motor. The movement of the carriage 37 brings a pawl 141 into contact with an arm 143 on a latch 140 to release the door 137, normally closing the bottom of the shoot 135, to discharge the wound pirn. A yarn-breakage stopping motion may also be included. Specification 661,610 is referred to.
Patent GB-107215-A (GB)
Title: Improvements in Power Actuated Hammers.
Inventor: MARTIN HENRY
IPC: B21J7/12
Filed: 1916-05-18
Abstract: 107,215. Martin, H., and Wolstenholme, J. May 18, 1916. Power hammers. - In a parallel-arm hammer, the length of stroke and mean position of the head E is varied by adjusting an eccentric 6 on which a ring Y is oscillated by a crank 8, the ring being connected by spring arms 2 to the arms F. The eccentric is adjusted by a chain 11, spring 21, bell-crank 14, and treadle 13. The head E &c. is traversed across the machine by a screw G rotated by chain and toothed gearing M, V one of the friction gears P engaging the gear I to rotate it in the desired direction according to the position of the pivoted plate U rocked by a treadle R. The head is raised by springs 18.