baber/WOPTO huggingface dataset:
Patent GB-427423-A (GB)
Title: Stabilisation of aqueous formaldehyde solutions
IPC: C07C47/058
Filed: 1933-10-24
Abstract: Aqueous solutions of formaldehyde are stabilized by adding hydrogen sulphide in a proportion appreciably less than an approximate saturation, preferably 5--10 per cent by weight of the formaldehyde solution.  The stabilizing effect is not appreciably affected by small changes in acidity, the stabilizer being effective in the pH range of 2--8.  Hydrogen sulphide may be used in conjunction with other stabilizers, e.g. methyl or ethyl alcohol.  An example describes the effect of adding various amounts of hydrogen sulphide and, for purposes of comparison, various amounts of methyl alcohol to a 37 per cent aqueous formaldehyde solution containing 0,5 per cent of methyl alcohol.
Patent GB-656697-A (GB)
Title: Improvements in or relating to power operated farm implements
IPC: F15B7/02
Filed: 1948-11-15
Abstract: 656,697. Reciprocating pumps. KAMMER, G. S. Nov. 15, 1948, No. 29566. [Class 102(i)] [Also in Groups I and XXIX] Agricultural implements (see Group I) are operated by hydraulic motors (see Group XXIX) energized by a plunger type pump. A casing 1, Fig. 2, which also serves as a sump, has a shaft 2 therein driven from a tractor ; the end of the shaft inside the casing has an adjustable crank or eccentric which actuates pump plungers 12 through a connecting rod 5 and lever plate 8. When a make-up pump plunger 17, Fig. 3, operated from another eccentric on shaft 2, is forced upwardly it draws liquid from the sump through passages 19 and 20, the latter incorporating a relief valve 28, and upon the plunger descending the liquid is forced past a ball valve 21 through a filter 22 into a space 23. The filter is located in the space 23 which acts as a pressure reservoir and communicates with the pumping spaces 16, Fig. 2, beneath the plungers 12, through non-return valves 27, Fig. 3. When a predetermined pressure has been attained in space 23 any further delivery from plunger 17 is byepassed to the sump due to operations of valve 28.,. A relief valve is also associated with the spaces 16, the latter being connected by flexible pipes with slave units, whilst the adjustable crank is provided to enable the displacement of plungers 12 to be varied to accommodate the pumps for use with different numbers of slave units one such unit being on each tractor; the setting shown in Fig. 2 is suitable for operating three pairs of motors. Air in the liquid is driven into the sump, as ducts 34 in the plungers 12 register with cylinder grooves 35, when approximately at the midpoint of the stroke of plunger 12 make-up liquid enters the spaces 16. Liquid is also driven out through groove 35 in such quantities as to provide for the constant introduction of fresh liquid into the operating circuits.
Patent GB-482149-A (GB)
Title: Improvements in or relating to processes for the manufacture of magnesium
IPC: C22B26/22
Filed: 1936-10-31
Abstract: Magnesium sulphide or nitride is heated with aluminium in a reducing or inert atmosphere such as hydrogen or argon, with or without the addition of a flux such as one or more fluorides of magnesium, calcium, sodium, or aluminium, whereby aluminium sulphide or nitride is produced and magnesium distils off.  The magnesium sulphide treated is other than that produced by the process described in Specification 465,366, and may be that produced by the process described in Specification 465,421. Specification 464,812 also is referred to.ALSO:Magnesium is obtained by heating powdered magnesium sulphide or nitride with aluminium in a reducing or inert atmosphere such as hydrogen or argon.  A flux such as one or more fluorides of magnesium, calcium, sodium, or aluminium may be added.  Aluminium sulphide or nitride is produced and the magnesium distills off. The magnesium sulphide treated is other than that produced by the process described in Specification 465,366, and may be that produced by the process described in Specification 465,421. Specification 464,812 also is referred to.
Patent GB-1263377-A (GB)
Title: Mattress supports for beds or the like
Inventor: SPROLL FRANZ XAVER
IPC: A47C23/06
Filed: 1969-06-11
Abstract: 1,263,377. Mattresses &c. F. X. SPROLL. June 11, 1969 [June 11, 1968; March 5, 1969], No.29645/69. Heading A4M. A mattress support comprises a rectangular frame 1, resilient elements which may be wooden slats 2 or a wire netting attached to and extending across the frame 1, and two adjustably positionable, stiff bearer bars carried by the frame and adapted to support the resilient elements from below to vary the degree of resilience of the mattress support. In one embodiment, Fig.1 symmetrically disposed bearer bars 10 are provided at their ends with strips 11 slidably engaged in grooves (12) in the frame ends 13. The bars 10 are adjustably spread apart either manually or by a handle 20 driving spindles 18, 19 each having both left and right hand threads engaging nuts on the bars 10. In another embodiment, Fig.4, bearer bars 38 are selectively supported between spaced ledges 40 formed on the webs of an inverted-V section, plastics nails fitted over cross rails (36) of the frame 31. In a further embodiment, Fig. 8, the bearer bars 63 extend longitudinally of the frame and are pivotally mounted at their ends, as at 64, to the ends of the frame. Each bar 63 is movable between an operative position in which it rests on a stop 68 and its rounded upper end 65 bears on the underside of the slats 52 and a retracted position in which it rests on a further stop 71 and does not bear on the slats 52.
Patent GB-357380-A (GB)
Title: Process for the preparation of new dyestuffs of the anthraquinone series
IPC: C09B1/32
Filed: 1930-10-03
Abstract: Aminoanthraquinone derivatives.-A derivative of the general formula: <FORM:0357380/IV/1> wherein X represents a halogen or a sulphonic group and Z represents a halogen or sulphonic group, is condensed with a phenylenediamine or a homologue or derivative thereof, in presence of copper or copper compounds and acid binding agents.  The substituent Z as well as the halogen in the 4-position may be replaced by the phenylene diamine.  The products dye wool grey shades from an acid bath, and the dyeings are transformed into pure grey shades by an after-treatment with chromates or bichromates.  In examples, (1) 1-amino-2,4-dibromo-5-chloranthraquinone is condensed with p-phenylenediamine and the product sulphonated; it dyes wool a green-grey shade which is rendered very fast by after-chroming; if the condensation is carried out at a higher temperature the chlorine in the 5-position is also replaced by the p-phenylenediamine radicle to give a product which, after sulphonation, dyes wool in blue-grey shades rendered purer by after-chroming; (2) 1-amino-2,4-dibromanthraquinone-8-sulphonic acid is condensed with p-phenylenediamine and the 2-bromine atom replaced by a sulpho group by treatment with potassium sulphite; the product dyes wool green-grey shades which are transformed to blue-grey by after-chroming; (3) a similar dyestuff is obtained by treating 1-amino-2,4-dibromanthraquinone-5-sulphonic acid as in (2). 1-Amino-2,4-dibromo-5-chloranthraquinone is prepared by nitrating a -anthraquinone sulphonic acid, chlorinating the 1,5-nitroanthraquinone sulphonic acid, reducing the nitrochloro derivative with sodium sulphide and treating the product with bromine to introduce two bromine atoms.
Patent GB-403507-A (GB)
Title: Engine starter mechanism
IPC: F02N15/06
Filed: 1932-10-24
Abstract: 403,507. Turning-gear. ABELL, R., 5, Norway Road, Milton, Massachusetts, U.S.A. Oct. 24, 1932, No. 29721. Convention date, Oct. 22, 1931. [Class 7 (v).] The pinion 12 of an engine starter is driven from the shaft 11 of the starting motor through a spring 30 constructed and arranged to yield axially and torsionally and also to slip as a friction clutch at approximately the stall torque of the motor while functioning as a driving medium. As shown in Fig. 2, the pinion 12 is loosely mounted on a sleeve 22 on the shaft 11 and has an extended hub 15 reduced at 16 and provided with an annular groove 17 adjacent to the pinion. A member 23 is secured to the shaft 11 by a pin 24 having a head 25 and a sleeve 26 engaging helical slots 27 in a sleeve 28 in order to effect the axial movement of the sleeve 28, spring 30 and pinion 12 to bring the pinion into engagement with an engine gear. This axial movement compresses a light spring 20 between the hub of the pinion and the end of the sleeve 22. The spring 30 has a number of centre turns spaced apart and end turns 35 frictionally engaging the periphery of the hub 15, the last turn being sprung into the groove 17. The end turns 33 of the spring are flattened at 34 and forced into the enlarged bore 29 of the sleeve 28, the end being sprung into a groove 31. The spring 30 is wound left-hand, so that the turns 35 are self-wrapping on the hub 15, but the turns 33 can slip within the sleeve 28 in case of overload or backfire or if the teeth of the pinion clash with those of the engine gear. In a modified form of spring, Fig. 7, the turns are all in contact and the intermediate turns 51 are flattened at 52 to increase the flexibility of the central portion. In another form, the spring is wound from flat wire, all the turns being in contact. In a modified form of pinion, the hub is formed with a helical groove engaged by the end turns such as 35 of the spring. A modified form of starter is described in which the hub of the pinion is provided with pins engaging helical slots in a sleeve driven through a spring such as 30 ; the spring is wound right-hand, one end being coiled upon an extension of the slotted sleeve and the other end being coiled on a member which corresponds to the member 23, Fig. 2, and is secured to the shaft by a pin engaged positively by the extremity of the spring.
Patent GB-484302-A (GB)
Title: Improvements in or relating to whip-stitching
IPC: D05B1/20
Filed: 1936-11-02
Abstract: 484,302. Sewing - machines. BILDE, T. E. D. Nov. 2, 1936, No. 29754. Convention date, Dec. 3, 1935. [Class 112] An attachment for laying an additional thread over the edge of a fabric has a horizontal needle carrying this thread guided to pass above and below the fabric edge and operated by the usual needle bar. The bar 37 for the needle carrying the additional thread is reciprocated horizontally by the bell-crank lever 29 pivoted at 30 in a casing 20 and connected to the usual vertical needle bar 12 by a second bell-crank lever 33. A pin 38 on the bar 37 rides in slots 43 in a block 54 suitably shaped as shown in Figs. 2 and 3 to cause the horizontal needle 39 to pass alternatively above and below the edge of the fabric 18 to cause the additional thread carried by the needle 39 to be placed round the edges of the fabric and caught in the stitches formed by the usual stitching mechanism. The over- and-under movement of the needle 39 is facilitated by the engagement of a triangular piece at the end of a spring 47 with inclined surfaces on the end of the bar 37. Alternatively the bar 37 may carry a pawl 55, Fig. 4, deflected by the pin 42 to tilt the rear of the bar. An alternative method of imparting the hairpin motion to the horizontal needle bar 37 consists of a lever 29 having a pin 63 traversing the slots 43a, 43b to turn the bar 37 on its axis, its needle holding end being cranked as at 37a as shown in Fig. 6.
Patent GB-360595-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: G08B5/36
Filed: 1930-10-06
Abstract: 360,595. Electric signalling systems. WHITEHALL, H., 11, Church Gate, Loughborough, Leicestershire. Oct. 6, 1930, No. 29787. [Class 40 (i).] In an electric signalling system, more particularly for facilitating the control of a musical performance from a point unseen by the performers or audience, groups of lamps and groups of corresponding control switches are connected to a common circuit by plug-and-socket connections in order that the lamps and switches may, if desired, be connected at alternative points of display and control. As shown in Fig. 3, the signalling lamps H<2> are mounted in a compartmented casing G and may be coloured or adapted to illuminate a coloured transparency or a stencil. A control unit, Fig. 5, comprises a core J having a longitudinal ridge which forms a fulcrum for spring contacts L<1>, L<2>, L<3> attached to the core and adapted to be moved into engagement with a contact strip P by press buttons N<1>, N<2>, N3. The parts are mounted in a casing O suitable for holding in the hand. A larger control unit of the type shown in Fig. 5 may be provided for manipulation by the feet of the operator. In a modification a group of lamps and control switches are mounted in a common casing. The lamps and switches may, if desired, be incorporated in existing furniture.
Patent GB-1376482-A (GB)
Title: 3,5-dialkyl-4-hydroxyphenylalkanoic acid esters of glycols and compositions stabilized thereby
IPC: C09K15/08
Filed: 1972-06-26
Abstract: 1376482 Phenylalkanoic acid esters CIBAGEIGY AG 26 June 1972 [1 July 1971] 29861/72 Heading C2C [Also in Divisions C3 and C5] Novel compounds of Formula I (in which each of R<SP>1</SP> and R<SP>2</SP> is C 1-4  alkyl, X is OH, OMe or OEt, a is 2 to 6, n is 1 to 9 and m is 1 or 2, provided that n is 3 to 9 when X is OH). are prepared by reacting a compound of Formula II (in which Y is OH, Cl or C 1-6  alkoxy), with a compound of formula HO[O(CaH 2a )] n X using known esterification methods. Compounds I are useful for stabilizing organic materials, e.g. alkyleneglycols and their monoethers, against oxidative deterioration.
Patent GB-954669-A (GB)
Title: Winding process and apparatus
Inventor: SPEAKMAN RAYMOND HOLDEN
IPC: B65H54/28
Filed: 1960-08-30
Abstract: 954,669. Winding bobbins. IMPERIAL CHEMICAL INDUSTRIES Ltd. Aug. 9, 1961 [Aug. 30, 1960], No. 29864/60. Heading D1J. An apparatus for winding yarn packages by means of a yarn guide mounted on a reciprocating traversing bar is so constructed that at the reversal of the traverse bar the guide continues to move at substantially undiminished speed for at least a substantial part of the time during which the traversing bar is slowing down and then regaining speed in the opposite direction. As shown the yarn guide 1 is in an arm 2 which is free to pivot between two stops 3, 3'on pivots 5, 5, the pivots 5, 5 and the stops 3, 3 being rigidly mounted on the traversing bar by bolts extending through the holes 6. The arm 2 is normally held in its mid position between the stops 3, 3 by resilient means 4. The means 4 may be a spring made of high hysteresis rubber. In operation as the traverse bar is slowing down just prior to reversal, the arm 2 continues to move with substantially undiminished speed at the same time pivoting about one of the pivots 5 until it contacts one of the stops 3 by which time reversal of the traverse bar is complete and the whole unit moves off in the reverse direction at substantially full speed while the arm 2 is brought back to the mid position by the resilient means 4. According to a second construction the yarn guide is free to slide between two stops that are rigidly mounted on the traversing bar. In this construction separate means must be used to ensure that little or no bounce occurs at reversal of the yarn guide and such means may be in the form of high hysteresis rubber stops; a bar magnet mounted on the guide; a hollow section on the guide containing steel shot or a small weight surrounded by a viscous medium; or a catch system similar in operation to a clock escapement.
Patent GB-1504060-A (GB)
Title: Process for coating a refractory support with an active metal oxide film
IPC: B01J23/40
Filed: 1975-07-16
Abstract: 1504060 Treating exhaust gases AIR PRODUCTS & CHEMICALS Inc 16 July 1975 [10 Sept 1974] 29915/75 Heading C1A [Also in Divisions B1-B2] Carbon monoxide and hydrocarbons in an engine exhaust gas are oxidized by contact with a catalyst comprising platinum and palladium supported on a gamma-alumina coated alpha-alumina monolith which has been made by dipping the alpha-alumina monolith into an alumina hydrosol, removing the coated monolith from the hydrosol and spinning it to remove centrifugally excess hydrosol, drying and calcining, the coating process being repeated until the desired thickness of coating was obtained.
Patent GB-519469-A (GB)
Title: Traverse motion mechanism for drum winders for winding strand material
IPC: B65H54/28
Filed: 1938-10-17
Abstract: 519,469. Winding yarns. SAKAMOTO, K. Oct. 17, 1938, No. 30051. [Class 120 (ii)] In a yarn winding machine in which the bobbin is drawn by a drum having a continuous and helical groove for traversing the yarn along the bobbin, the yarn is guided in the correct part of the groove by a guide bar mounted in front of the drum and adapted to move between two opposite positions in which it lies obliquely to the axis of the drum, the guide bar being moved rapidly from one of its positions to the other when the yarn has to change its direction of traverse and being held stationary in one or other of the positions throughout the greater part of a traverse in one direction ; the guide bar is preferably rocked to and fro between the two oblique positions by means of a link driven by a cam rotated in timed relation with the drum so that the cam rotates once during the time the drum rotates a number of turns corresponding to twice the number of turns of the helical groove in each direction. As shown the yarn passes under a rod 22 on the rocking bar 20 which is rocked on the pivot 21 by a bell-crank lever, 12, 14 the arm 14 thereof being pivoted to the bar and the arm 12 carrying a roller held by a spring 16 against the cam 9 carried by a pinion 8 driven by a pinion 7 on the drum shaft 2. The bar 20 is actuated by the cam so that it takes the position A-A while the yarn is travelling from the point E to the point G and the position B-B when the yarn is travelling from the point G to the point E, the movement of the bar from one oblique position to the other taking place during the time the yarn is then travelling from the point G to the point H and back again and during the time it is travelling from the point E to the point F and back again.
Patent GB-633699-A (GB)
Title: Process for neutralizing acid, phosphate-containing solutions of calcium nitrate
IPC: C05B11/06
Filed: 1946-10-08
Abstract: An acid solution of calcium nitrate containing phosphoric acid or phosphates is neutralized by treatment with a clear solution of calcium oxide or hydroxide in an aqueous solution or melt of calcium nitrate containing little or no phosphate.  The last mentioned solution may be the product of a previous treatment from which the phosphate ions have been removed as insoluble calcium phosphate.  The starting solution may be obtained from the crystallized calcium nitrate from the decomposition of phosphates with nitric acid.
Patent GB-504406-A (GB)
Title: Improvements in, or relating to, signals for use in connection with mechanically-propelled vehicles
IPC: H01H35/06
Filed: 1937-11-04
Abstract: 504,406. Gravity and inertia switches. EXCELSIOR GAUGE CO., Ltd., and TOMEY, J. L. Nov. 4, 1937, No. 30185. [Class 38 (v)] The circuit of a stop light is completed by a switch operated by the deceleration of the vehicle, the switch comprising a so-called pendulum b mounted substantially horizontally on a rearwardly inclined axis between the bracket a<2> and the base a, the pendulum moving forward when the vehicle slows, causing, through a buffer b<8>, a spring d to move forward and close contacts d<1>, c. The pendulum normally rests against the buffer f<1> and the circuit may be connected to the ignition switch.
Patent GB-300632-A (GB)
IPC: C01D9/04
Filed: 1928-10-18
Abstract: 300,632. Kali-Industrie Akt.-Ges., Thorssell, C. T., and Kristensson, A. Nov. 18, 1927, [Convention date]. Alkali and' alkaline-earth nitrates.-The solution of nitrate and nitrite obtained by causing a solution or suspension of an alkali or alkalineearth hydroxide or carbonate to trickle over the absorption towers of a nitric acid plant is freed from nitrite as by treatment with nitric acid and steam and then cooled to say 0‹ C. to deposit a part of the nitrate in solid form. The mother liquor after being warmed, say to 15-20‹ C., as by passage in countercurrent to further nitrate solution to be cooled, is re-used in the absorption process after addition of further hydroxide or carbonate.
Patent GB-710324-A (GB)
Title: Improvements in apparatus for delivering measured volumetric quantities of granular,pulverulent and like fluent solid materials
IPC: G01F11/26
Filed: 1952-11-29
Abstract: 710,324. Dispensing measured quantities of granular and like materials. LOCKER, M. July 24, 1953 [Nov. 29, 1952], No. 30302/52. Class 106(5) Apparatus for dispensing measured quantities of granular and like materials has a nozzle 5 provided internally with a measuring cup 22 opening towards an annular baffle 11 with a central spout 18 and is characterized in that the cup is integrally united to the baffle by legs 23, the spout having marginal formations 25 engaged between the baffle and a container 8. The cup 22 is filled by inverting the container, subsequent movement of the container to an upright position allowing the measured quantity of material to empty itself on to the baffle ready for delivery at the next inversion of the container. The baffle 11 comprises an outer part integral with the cup 22 and an inner part integral with the spout 18, the two parts having inter-engaging surfaces 16, 19. All parts of the apparatus are of plasticmoulded construction and the nozzle 5 has formations 10 to enable it to be screwed on or off the container. The cup 22 may be changed for one of different capacity.
Patent GB-670002-A (GB)
Title: Improvements in or relating to attitude-indicating instruments for air and other craft
IPC: G01C9/00
Filed: 1948-11-22
Abstract: 670,002. Attitude indicators for ships and aircraft. REID, G. H. Dec. 21, 1949 [Nov. 22, 1948], No. 30335/48. Classes 4 and 113 (i). An attitude indicator for air or other craft comprises an indicator member which is mounted relative to the instrument casing for movement about its pitch and roll axes, and an electric synchronous remote control motor which moves it about one of these axes and is arranged to be electrically actuated from a remote transmitter unit susceptible to motion of the craft about that axis. The aircraft attitude indicator shown consists of a model aircraft 29 universally supported above a landscape member 21 by a U- shaped gimbal frame 30 comprising arms 31, 32 to which the tips of the model aircraft wings are pivotally connected, and a spindle 33 about which the frame can rotate, the spindle being in alignment with the longitudinal axis of the model. Rolling and pitching movements of the aircraft are reproduced by the model through selsyn motors 35, 40 connected to transmitters 50, 47 operated by roll and pitch reference devices such as artificial horizon gyroscopes 51, 48 respectively, The landscape member 21 is orientated by selsyn units 25. 27 operated by a directional gyroscope, or master compass 24. Angles of pitch and roll may be indicated by pointers moving over scales 52, 56, while the member 21 may carry a scale for use in conjunction with an index pointer 23. The indicator is of particular use in cases where the pilot has to lie in the prone position, and may be mounted on an arcuate supporting rail, being slidable into the desired position. The form of mounting employed enables the model aircraft to rotate through any angle about any of its principal axes. Specification 425, 111, [Group XX], is referred to in the Provisional Specification.