baber/WOPTO huggingface dataset:
Patent GB-1081245-A (GB)
Title: 2-(n,n-dialkyl-and n-alkoxy-n-alkyl-carbamoyl-methoxy)-benzoic acid esters substituted in the 5-position
Inventor: HILTMANN RUDOLF
IPC: A61K31/235
Filed: 1966-02-24
Abstract: Novel compounds of Formula I <FORM:1081245/C2/1> wherein R is an alkyl radical having up to 6 carbon atoms, and R1 is an alkyl or alkoxy radical having up to 6 carbon atoms, or R and R1 together with the nitrogen atom and possibly also an oxygen atom form a saturated heterocyclic ring, R11 is an alkyl or alkenyl radical having up to 6 carbon atoms, and R111 is a saturated or unsaturated aliphatic, aliphatic-oxy, aliphatic-oxy-aliphatic, hydroxy-aliphatic or oxo-aliphatic radical having up to 6 carbon atoms, may be prepared (1) by reacting a 5-substituted salicylic acid ester in the presence of condensation agents with a glycollic acid amide of formula HO-CH2-CONRR1 or a reactive ester thereof, (2) by reacting a 5-substituted 2 - carboxymethoxybenzoic acid ester or a reactive functional derivative thereof with an amine of formula R-NH-R1 or a reactive derivative thereof, (3) when R111 represents an alkyl group, by alkylation of the corresponding hydroxy compound, or (4) by reducing the corresponding carboxyaldehyde to give compounds in which R111 represents a hydroxymethyl or methyl radical, or by reacting the aldehyde with a lower aliphatic ketone to give compounds in which R111 represents an oxoalkenyl radical, which may be converted into an oxoalkyl, hydroxyalkenyl, hydroxyalkyl or alkyl radical.  The esters of the invention may also be obtained by esterification of the corresponding acid, acid chloride, mixed anhydride or salt, or by transesterification of other esters.  Methyl 5-n-propyloxysalicylate may be obtained by treating hydroquinone mono-n-propyl ether with carbon dioxide under pressure and esterifying the 5-n-propylsalicylic acid obtained. Methyl 5-acetylsalicylate is obtained by esterification of the free acid.  Other alkyl 5-propionylsalicylates may be obtained by Frie's rearrangement of the alkyl O-propionylsalicylate. n-Propyl 2-carboxymethoxy-5-ethoxy-benzoate is made by reacting n-propyl 5-ethoxysalicylate with sodium chloroacetate and releasing the free acid from the sodium salt obtained.
Patent GB-658314-A (GB)
Title: Improvements in warp knitting machines
IPC: D04B27/22
Filed: 1949-03-25
Abstract: 658,314. Control of motors. BRITISH CELANESE, Ltd. March 25, 1949. No. 8209. Convention date, March 25, 1948. [Class 38(iii)] [Also in Group VIII] The speed of motors permitting rotation of warp beams by thread tension in a knitting machine is controlled by the tension in the threads varying an iron cored reactance in circuit with each motor. Increased tension) causes the movable arm. of the reactance 85 to move and trigger a gas filled tetrode 84 causing changes in phase relationship between grid and anode potential of rectifying valves 66, 67 supplying direct current to the motor 39. The motor 39 is normally driven at constant speed by applied voltages emanating from networks 74, 76, the latter being adjustable by a potentiometer 79 to adjust the normal running speed The changes described above cause additional increments of voltage to be applied to the motor to increase its speed. Excessive tension causes opening of a switch 142 whereby alternating current to the machine driving motor 17 is cut off. Excessive slackness causes opening of a switch 123, de-energizing of a relay 51, opening of switches 52, 53 and reduction of current and motor speed.
Patent GB-838343-A (GB)
Title: New monoazo dyestuffs derived from cyanuric bromide
Inventor: STEPHEN WILLIAM ELLIOT
IPC: C09B62/085
Filed: 1957-03-13
Abstract: The invention comprises dyes which, in their acid free form, are of formula <FORM:0838343/IV(c)/1> where A may bear substituents other than hydroxyl and amino groups, X is H or a substituent other than Hlg and one of Y1 and Y2 is H and the other H or SO3H.  They may be made by coupling an appropriate diazotized o-anilinesulphonic acid with the necessary triazine component or by reacting an appropriate aminoazo dye with cyanuric bromide. The aniline sulphonic acids and aminoazo dyes to be used are those of the parent Specification, which also discloses preferred reaction details.  Indicated as triazine components are the products of reaction of cyanuric bromide and 1-amino-8-naphthol-6-mono- and -3,6- and -4,6-di-sulphonic acids. The dyes dye or print cellulosic materials by methods which preferably include an alkali treatment vide Specification 797,946. Red shades are obtained.  An example is given of the preparation of a dye from cyanuric bromide and the hydrolysis product of the dye orthanilic acid --> 1-acetylamino-8-naphthol-3,6-disulphonic acid.
Patent GB-1124715-A (GB)
Title: Travelling longwall supporting assembly
IPC: E21D23/06
Filed: 1967-02-22
Abstract: 1,124,715. Advancing mine roof supports; mineral mining equipment. GEWERKSCHAFT EISENHUTTE WESTFALIA. 22 Feb., 1967 [1 March, 1966], No. 8364/67. Headings E1E and E1F. In a travelling longwall support assembly having a relatively extensible cantilever beam 12 the latter is provided with a wedge-shaped cutter 18 to dislodge the overhanging upper coal 19. The cutters may be mounted on a common beam which is disposed transverse to the frames and secured thereto by an advancing jack and a supporting jack, see Fig. 2 (not shown).
Patent GB-546985-A (GB)
Title: Improvements in and relating to snap-action electric switches
IPC: H01H21/42
Filed: 1941-07-03
Abstract: 546,985. Snap-action switches. DORMAN & SMITH, Ltd., and RYDER, F. E. July 3, 1941, No. 8390. [Class 38 (v)] On moving the operating handle 8 from the " off " position shown, a projection 14 engages, after some lost-motion, a semi-circular plate 11 on a contact-carrying spindle 7, further rotation causing the plate - 11 to depress plate 10 against the action of thrust springs 9. In "opening" the switch, the springs 9 provide a quick break. The member carrying the projection 14 may also have a flat edge 13 bearing on the plate 10 which thus prevents looseness of the handle in the " off " position.
Patent GB-267331-A (GB)
Title: Improvements in or connected with lifting jacks
IPC: B66F3/16
Filed: 1926-03-29
Abstract: 267,331. Lake, A. E. March 29, 1926. Jacks. -Screw jacks of the kind having a non- rotatable screw carrying a nut and in which rapid adjustment can be effected by.raising and so disengaging the nut and then spinning it to the desired position, are provided with an anti-friction bearing which is secured inside the nut. The nut 4 is provided underneath with a recess 4A containing a ball bearing 8, the lower washer 5 of which is slightly larger than the opening 4AA of the recess, so that when the ball bearing is forced into the recess it is retained therein. The ball bearing may be retained in position by a ring 11, Fig. 2, engaging in a groove 4<c> in proximity to the lower washer 5 of the ball bearing.
Patent GB-974127-A (GB)
Title: Oil-in-water vat dyeing emulsions and processes of dyeing fibrous materials therewith
Inventor: KING JOSEPH CLARENCE
IPC: D06P1/22
Filed: 1962-03-05
Abstract: Fibrous materials especially of cellulose, silk or wool, are vat dyed with an oil-in-water emulsion comprising an outer phase constituted of vat dye particles of mean size 20-100 m , preferably 60-80 m , dispersed in an aqueous solution of a water-soluble caseinate, soya bean proteinate or mixture thereof and an inner phase consisting essentially of a volatizable hydrocarbon oil.  The caseinate may be the ammonium, borax or alkali metal compound obtained by reacting a casein slurry with the appropriate alkali at 60 DEG C. in aqueous medium.  The caseinate solution may contain a preservative (sodium o-phenylphenate). The soya proteinate is prepared in the same way. The aqueous phase of the emulsion may also contain glycerin, diethylene glycol triethylene glycol or mixtures of such glycols as lubricants as well as surfactants and anti-foam agents for example 2-ethylhexyl alcohol which contains the properties of both. Advantageously the aqueous phase also contains sodium alginate. The hydrocarbon oil may be aliphatic, aromatic or a mixture having a boiling range of 100-300 DEG C. and a KB value of 45-55.  The emulsion may be prepared by dispersing the vat dye in a solution containing the caseinate or poteinate and other additives using an Eppenbach homogeniser at a temperature of 80 DEG F. and then adding the hydrocarbon oil to form the emulsion which has a viscosity of 700-3100 cp.  The emulsion may be applied by padding followed by dipping, padding in a reducing bath, steaming, reoxidising with bichromate, rinsing, soaping, rinsing again and drying.  Examples are given.
Patent GB-550142-A (GB)
Title: Improvements in or relating to tractors for agricultural implements
IPC: A01B61/00
Filed: 1941-07-04
Abstract: 550,142. Implements for working land. FERGUSON, H. G. July 4, 1941, No. 8453. [Class 6 (i)] In a tractor 1 with an agricultura implement attached by links 3, 4, and adapted to be raised and lowered by a power unit in accordance with variations in the draught, overload release means being provided for placing the power unit out of operation upon excess draught on the. implement, thus allowing slipping of the tractor wheels, as described in Specification 470,087, means are provided for maintaining the power unit out of operation during the decrease of draught consequent on the wheel slipping, thus preventing shuddering of the tractor. A pivoted lever 11, Fig. 2, operating a valve 8 controlling the oil supply and discharge ports of the cylinder 6 of the power unit is rotated about its pivot 12 by a hand lever 17 through an eccentrich 15 to raise or lower the implement and through a compression spring 24 on an extension of a link 3 to maintain the implement at the predetermined depth, abnormal compression of the spring acting to release the power unit as described in Specification 470,087. The lever 11 is provided with delay action mechanism or with a spring-held pivoted lever 26 carrying a latch 29 which, upon excessive draught; maintains the levers in a position to open the oil release port of the power unit until the latch is released by the operation of the hand lever 17 to raise the implement. Specifications 160,248, 253,566, 320,084, [all in Class 6 (i)], 470,069 and 471,515 also are referred to.
Patent GB-198831-A (GB)
Title: Improvements in or relating to the construction of coal heating stoves for domestic use
IPC: F24B1/189
Filed: 1922-03-23
Abstract: 198,831. Clark, C., and Clark, G. H. March 23, 1922. Outlets to chinmeys.-In a domestic stove the outlet to the chimney is provided with a supplementary fitting so shaped that the gases, on their way to the chimney, are deflected backwards away from the vertical. As shown, the fitting, which is supported by flanges D<1>, F, provides a comparatively narrow inlet B, extending across the whole width of the stove back, the path for the gases curving backwardly and upwardly and gradually increasing in depth as shown at C but at the same, time decreasing in width. A sliding register E is provided to allow access to the chimney G for sweeping, this register being omitted when an opening into the chimney is formed in the breast. Specification 5112/85 is referred to.
Patent GB-662180-A (GB)
Title: Improvements relating to printing blocks
IPC: B41N1/12
Filed: 1949-03-29
Abstract: 662,180. Printing - surfaces. SEMPERIT OSTERREICHISCH-AMERIKANISCHE GUMMIWERKE AKT.-GES. March 29, 1949 [April 20, 1948], No. 8543/49. Drawings to Specification. Class 100 (ii). [Also in Group VIII] A multilayer printing block comprising a thin hard printing layer, at least one soft resilient layer, such layers being of rubber mixtures, a shrink proof insertion and a further, lower, layer, has binding layers arranged in at least three places, namely between the printing layer and the cushion layer, between the cushion layer and the shrink proof insertion and between such shrink proof insertion and the following layer. A suggested composition for the binding layers in parts by weight is given as follows: 50 " Perbunan," (R.T.M.); 50 "Buna" S (R.T.M.); 5 cumarone resin; 5 colophony-brown coal-tar (1:1); 5 mineral oil; 10 zinc oxide; 40 reinforcing carbon black; 40 non-reinforcing carbon black 2 sulphur; 2 "Vulkacit" A2 (R.T.M.). In other respects the subject-matter of this Specification is identical with that described in Specification 662,179. Specification 659,924 also is referred to.
Patent GB-775395-A (GB)
Title: Improvements relating to the electric heating of flexible containers
IPC: H05B6/46
Filed: 1955-03-24
Abstract: 775,395. Scanning non-metallic sheet material. FLAX, V. March 24, 1955 [March 24, 1954], No. 8585/55. Class 42 (1). [Also in Group XI] Flexible containers formed of a thermoplastic material are sealed by pressing the container walls together between welding dies supplied from a high frequency current source through an oscillatory circuit the frequency of which is dependent upon the distance apart of the dies and which is brought into resonance only when the dies reach predetermined relative positions in which their separation is less than the combined thickness of the walls to be welded together. The welding dies may be continuously connected to the high-frequency current source, welding taking place automatically upon the dies reaching their predetermined positions.
Patent GB-572334-A (GB)
Title: Mechanical improvements in or relating to silicon-iron parts of dephlegmators used in concentration plants for sulphuric acid
IPC: C01B17/88
Filed: 1941-10-20
Abstract: 572,334. Column stills. HUNTINGTON, HEBERLEIN & CO., Ltd., COPLEY, E. D., and MARCKWALD, H. G. B. Oct. 20, 1941, No. 8604/43. Divided out of 572,328. [Class 32] [Also in Group XII] The bubble trays of the fractionating tower described in the main Specification are provided with deflectors 5, Fig. 2, of the usual hook shape cast integrally with the trays but a broken connection allowing for expansion is provided by making in the deflector near the periphery of the tray a gap 8 provided with recessed parts 9 adapted to receive a small plate 10 which is cemented in the gap. The trays are supported on a flat section silicon iron ring cast in two pieces 6.
Patent GB-678048-A (GB)
Title: Improvements in or relating to electron microscopes
IPC: H01J37/20
Filed: 1950-04-06
Abstract: 678,048. Electron microscopes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 6, 1950 [April 9, 1949], No. 8763/50. Class 39 (i). In a microscope having adjacent the object a diaphragm for restricting the beam, the object is carried by an apertured disc movable at right angles to the beam between adjacent parts of the tube wall to which it is sealed. The object 7, Fig. 1, is spring clamped to a removable rod 6 in the disc 19 in which conical depressions 39 are engaged by projections in the tube parts 3, 4 and sealed by stretched rubber rings 37 whereby the disc can be moved relatively to the beam. The beam diaphragm 13 of metal is secured to a holder 14, Fig. 2, which is sealed by a flexible coupling in a radial passage in the disc and is adjustably clamped against the outer wall 17 by screws 15 and nut 16. A spring-loaded valve 9 seals the tube when the object holder is withdrawn. The disc 19 can be moved within a recess in the surrounding tube parts 17 by flexible rods 21 at right angles to each other and clamped by screws 26 to levers 25, each of which is secured by a screw 28 so as to be rotatable on a shaft 27. The lever is adjusted against the pressure of a spring- pressed plunger 30 by a rod 29 through a screw 33 carrying a knob 34 adjacent the fluorescent screen. Focusing coils 1, 2 are provided.
Patent GB-258499-A (GB)
Title: Apparatus for the manufacture of expansion rings for pipe systems
IPC: B21D53/16
Filed: 1926-04-01
Abstract: 258,499. Harvie, D., and Harvie, D. April 1, 1926. Pipes. - Expansion-rings for pipe systems are made by flanging the ends of a short pipe 4, Fig. 1, into the form shown in Fig. 7. The pipe is clamped at its mid-length between the halves 6 of a die, the punch 1, Fig. 4, being spigoted in a ring 2 which is clamped to the die-holder or ram 3. The flanging of the ends may be performed either consecutively or simultaneously. The work is carried out in stages by a set of progressively shaped punches co-operating with a set or correspondingly shaped dies, or with a single die shaped to the final contour. The work may be annealed between the pressing operations.
Patent GB-1513822-A (GB)
Title: Backrest adjustment mechanism for chairs
IPC: A47C1/024
Filed: 1975-03-04
Abstract: 1513822 Adjustable backrest PARNALL & SONS Ltd 23 Feb 1976 [4 March 1975]  8848/75 Heading A4J [Also in Division E2] An angularly adjustable backrest support 10, 11 is provided with a stay 17 pivotally connected to the support and passing through aligned openings 19, 20 in a rotatable detent 15 mounted below the seat 12, the walls of the opening being provided with teeth 19a, 20a which mesh with teeth 17a on the stay to hold the backrest in adjusted position. Rotation of the detent about an axis normal to the axis of the stay causes disengagement of the teeth and allows adjustment of the backrest support about pivot 13. The backrest is urged forwards when the teeth are disengaged by a spring 22. The backrest support comprises an upholstered backrest carried by a stem 10 which is vertically adjustable in a channel 11 pivoted to the seat 12 by the pin 13.
Patent GB-437185-A (GB)
Title: Improvements relating to the supply of fuel to oil burners
IPC: F23K5/00
Filed: 1934-03-21
Abstract: 437,185. Spray-producers. FRASER, R. P., 20, Margravine Gardens, Barons Court, London. March 21, 1934, No. 8885. [Class 69 (iii)] [See also Group XI] The pressure of the air or oil supply to a burner is caused to build up slowly on the free surface of a liquid, preferably mercury, extending up a column connected to the fuel supply passage, the head of liquid so produced being suddenly released when the burner is shut down and the oil being quickly withdrawn from the burner mouth. Fig. 1 shows an oil burner 5 supplied with air and oil from pumps 2, 3 driven by an electric motor 1. The air supply pipe 2<a> is connected by a pipe 2<c> and a leaky valve 11 to a control device consisting of a casing 6 enclosing a cylindrical vessel 7 containing mercury 8 and the oil supply pipe 3<a> is connected by a pipe 3<c> to a pipe 9 inside the vessel 7. When the motor 1 starts, the compressed air leaking past the valve 11 causes the mercury to rise slowly in the pipe 9. This condition is maintained until the motor stops, when the compressed air in the vessel 7 escapes rapidly past the valve 11 and the mercury level in the pipe 9 falls thereby withdrawing oil from the burner mouth. Fig. 2 shows a modification in which a valve 16 in a gravity oil supply passage 17 is allowed to lift when the air pump is operating by the upward movement of a plate 15 carried by a plunger 13 floating in the mercury 8 which is subjected to the air pressure communicated from the pipe 2<c> through a dashpot 10. When the air pump stops, the mercury level quickly falls so that the valve 16 closes and the oil is withdrawn from the burner. In another modification, the oil control device is built on to or arranged adjacent to an oil pre-heating tank supplying the burner. In this construction the leaky valve, instead of being in the air passage, controls the flow of mercury, and the mercury is prevented from being driven into the preheating tank by a floating ball valve or by an air passage connecting the lower part of the vessel 7 to the upper part of the mercury chamber. In other modifications, (i) the difference in oil pressure on the two sides of a pressure reducing valve is utilized to produce the head of liquid, (ii) oil is substituted for mercury in the control device.
Patent GB-1474004-A (GB)
Title: Cyclohexane alcohols and esters
IPC: C07C213/00
Filed: 1975-03-04
Abstract: 1474004 Basic alcohols and esters PENNWALT CORP 4 March 1975 [4 March 1974 29 Jan 1975] 8915/75 Heading C2C Compounds of the general Formula IV (Flow Sheet A) are prepared by the following routes (R<SP>1</SP> = H, C 1-8  alkanoyl; R<SP>2,3</SP> = H, C 1-8  alkyl, C 3-8  alkenyl or R<SP>2</SP> + R<SP>3</SP> = straight-chain C 3-6  alkylene, CH 2 CH 2 OCH 2 CH 2 , R=H, Ph; R<SP>4</SP>=H, C 1-8  alkyl; R<SP>5,6</SP>=H, OH, C 1-8  alkyl or alkoxy; n=0, 1). The products may be isolated in the form of an acid addition or quaternary ammonium salt. The above compounds are analgesics, local anaesthetics and anti-arrhythmic agents, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-236644-A (GB)
Title: Improvements in rotary compressors for acting upon covered rollers used in the textile trades
IPC: D06C15/00
Filed: 1924-04-09
Abstract: 236,644. Dronsfield, J. April 9, 1924. Rollers.-In machines for rolling the cloth, leather, or other covered rollers used in textile machines and of the kind in which an upper treadle-controlled roller j is movably mounted with respect to the bed rollers c, means are provided for adapting the machine to treat the covers of rollers of widely different diameters. As shown, the pressure roller i is mounted in auxiliary brackets i adjustably secured to main brackets g on a shaft d carrying a lever d<1> connected by an adjustable connecting rod e with a treadle f. The lever d<1> has a tail d<2> working to an adjustable stop k. The rollers c are driven by pulleys c<1>.
Patent GB-1068223-A (GB)
Title: Crystal growing method and apparatus
IPC: C30B15/30
Filed: 1966-03-01
Abstract: In a process of crystal-pulling from a crucible surrounded by a heating means, the level of the melt is maintained constant relative by to the heating means as pulling proceeds by lowering the heating means (according to Figs. not shown) or raising the crucible.  The crystalpulling and level adjustment are each effected by manual (fast) and automatic (slow) operation.  The crystal and melt are additionally rotated in opposite directions. The crystal pulled is of germanium or silicon, the crucible is of quartz, and the heating means is a double graphite helix.  The crucible is contained in an inner water-cooled chamber having an inert gas atmosphere and PTFE seals through which pass into an outer chamber the pulled crystal and level adjustment and crucible rotation gear.