baber/WOPTO huggingface dataset:
Patent GB-425549-A (GB)
Title: Improvements in and appertaining to domestic wringing machines
IPC: D06F45/00
Filed: 1933-09-18
Abstract: 425,549. Wringers. SUMMERSCALES, W. H. G., HOLMES, W., and HOLGATE, B. R., (trading as SUMMERSCALES' SONS, W. & S.), Parkside Works, Keighley, Yorkshire. Sept. 18, 1933, No. 25732. [Class 138 (ii)] In a folding wringer, slotted eye-bolts 5, 5<a>, Fig. 3, projecting from the base B<1> of the turnover frame B swivel on studs or a cross-bar 4 carried by notched brackets 2, 2<a> secured to one side a' of a rectangular washing receptacle a let into and supported by a rectangular frame A having legs 7. During the pivotal movement of the turnover frame the ends of the base B<1> travel along the edges of the brackets 2, 2<a> and in the operative position of the wringer engage in the notches 2d, Fig. 6. The wringer is held in the operative position by the engagement of catches 6<a>, 6<b> on a cross-bar 6 carried by the turnover frame with the cross-bar 4. A sliding shelf 11 having legs 12 is fitted to the stand so that when drawn forward it may support a clothes basket. In a modification, Fig. 7, the turnover frame is held in the operative position by sliding members 6<c> mounted on the cross-bar 4 and engaging the apertures in the eye-bolts.
Patent GB-873934-A (GB)
Title: Improvements relating to multiplex transmission systems
Inventor: FOOT GEORGE HELIER
IPC: H04J3/17
Filed: 1958-08-11
Abstract: 873,934. Multiplex pulse signalling. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 11, 1959 [Aug. 11, 1958], No. 25744/58. Class 40(5) A multiplex transmission system includes at the transmitter a storage device into which the multiplexed signal samples are written in recurrent parallel sweeps (e.g. columns) to form a rectangular matrix, Fig. 1, in which signal samples of the respective channels are aligned laterally (i.e. in rows), the signal samples being read out in recurrent lateral sweeps (rows) so that bursts of signals from each channel are transmitted in turn, and means are provided to prevent a read-out sweep taking place on a line in which no signal samples were stored in the preceding writing frame. Preferably, two storage devices are employed signals being written into one device while signals of the preceding frame are being read out of the other device. A similar storage device or a pair of devices is employed at the receiver, lines having no signals being omitted during writing, but included during reading whereby the original multiplexed train is obtained for distribution to the respective channel receivers. A line synchronizing pulse is transmitted at the end of each line read out, two line synchronizing pulses following each other in close succession when a line is omitted, and the frame scan generators at the transmitter and receiver being stepped to the next line each time a line synchronizing pulse occurs. Long frame synchronizing pulses are transmitted at the end of each read-out frame to reset the frame scan generators. Alternatively a coded group of pulses may be employed to provide frame synchronization. The read-out line scanning speed at the transmitter is preferably greater than the writing line scanning speed whereby pulse frequency compression is obtained, corresponding expansion taking place at the receiver.
Patent GB-482283-A (GB)
Title: Improvements in or relating to the supply of air to internal combustion oil engines
IPC: F02B39/16
Filed: 1936-09-22
Abstract: 482,283. Pumps. HILLMAN, M., and HILLMAN, L. C., [Representatives of HILLMAN, E. C.]. Sept. 22, 1936, No. 25759. [Class 7 (ii)] In a charging arrangement the output of the blower is proportionate to the load on the engine throughout a predetermined load range, but is cut off below said load range. A. Diesel engine 1 drives an electric generator 2 which supplies current to a motor 3 driving a blower 4, preferably of the Roots' type. The speed of the motor is controlled by a rheostat 10 the arm 7 of which is moved in accordance with the load on the engine. When this load falls below a predetermined minimum, contacts 11 are closed, and either, a relay 13 opens a vent-valve 14 in the delivery pipe 6 of the blower, or a relay 15 opens the motor circuit. The arm 7 is preferably moved by the engine governor, and, in a modification, it may operate a change-speed gear, e.g. of the type known as the Hayes self-selector transmission gear, or a hydraulic coupling of the type described in Specification 457,746, which may be directly driven by the engine.
Patent GB-489466-A (GB)
Title: Improvements relating to electrical connectors or contact-making and breaking devices
IPC: H01R13/635
Filed: 1937-09-23
Abstract: 489,466. Two-part couplings. WIGHT, H. D., SPEERS, W., and SUNDERLAND FORGE & ENGINEERING CO., Etd. Sept. 23, 1937, No. 25799. [Class 38 (i)] A coupling having a quick break action comprises a,pair of contacts 6 carried on arms 5 pressed upwardly by springs 7 and coacting with plate contacts 11 on a plug member 10. The latter also carries an earthing socket 12 that engages a pin 8 on the casing 1 before the contacts 6, 11 meet and on withdrawing the plug 10, the pin 8 and socket 12 are in engagement after the contacts 6, 11 are separated by the arms 5 flying back under the action of the springs 7. A groove 10a in the plug 10 coacts with a pin 14 in the entry opening 15 to ensure correct positioning of the plug. A larger number of contacts may be provided.
Patent GB-1154029-A (GB)
Title: Oxydehydrogenation Process
IPC: C07C5/48
Filed: 1966-06-09
Abstract: 1,154,029. Oxydehydrogenation catalyst. STANDARD OIL CO. 9 June, 1966 [10 June, 1965], No. 25829/66. Heading B1E. [Also in Division C5] A catalyst for the oxydehydrogenation of C 4  to C 10  monoolefins to conjugated dienes has the composition A a  B b  Fe c  Bi d  P e  Mo f  O 2 , where A is Group VIII transition metal other than Fe, B is at least one of Sb, Sn, Cu and As, and a is 0.1 to 12, b is 0 to 12, c is 0.1 to 12, d is 0.1 to 12, e is 0 to 12, f is 6 to 12, and the Mo@ may be at least partially replaced by W. The catalyst may be used alone or on a carrier material, for example silica, alumina, thoria, zirconia, titania, boron phosphate, silicon carbide, pumice, diatomaceous earth or clay ,the carrier being used in amount less than 95% by weight of the final catalyst composition. The catalysts may be made by dissolving soluble salts of the metals in water or acid and heating the mixture with an aqueous silica dispersion until a gel forms. The gel is heated to dry it then calcined in air.
Patent GB-366476-A (GB)
Title: Improvements in slabs or moulded blocks made of glass to be employed as building materials
IPC: E01C17/00
Filed: 1930-08-29
Abstract: 366,476. Glass blocks. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST-GOBAIN, CHAUNY ET CIREY, 1 bis, Place des Saussaies, Paris. Aug. 29, 1930, No. 25834. Convention date, Aug. 31, 1929. [Class 87 (i).] Slabs or moulded blocks of glass for building are tempered during manufacture to increase their resistance to loads, blows, changes of temperature and to obviate the formation of dangerous splinters when broken. The Specification as open to inspection under Sect. 91 (3) (a) comprises the manufacture of sheets, mouldings, or other objects of tempered glass. This subject-matter does not appear in the Specification as accepted.
Patent GB-632542-A (GB)
Title: Improvements in or relating to filler blocks for the manufacture of floors
IPC: E04C3/22
Filed: 1947-09-23
Abstract: 632,542. Filler blocks. DELOUPY, G., and REIMBERT, M. Sept. 23, 1947, No. 25861. Convention date, March 12. [Class 20(iv)]  Filler blocks to be arranged in adjacent lines each have a deep axial recess a forming in each line a longitudinal channel to be filled with reinforced concrete c to form a floor skeleton, and the upper ends of the contacting surfaces of cooperating blocks in adjacent lines have longitudinal lateral recesses b which together form an elongated dovetailed channel which is adapted to be filled at least partly with reinforced concrete d to increase the rigidity of the floor. The reinforcement of the beam c joining a single row of blocks may be pretensioned, and the beadings d may be cast only over a limited length near the supports. Each block may have a transverse recess e at one top edge in which a transverse reinforced concrete beading f is cast, inner partitions g reinforcing the upper recesses, and inclined walls h which transmit forces applied at any point on the surface. The blocks may be made of various materials, and formed of portions which are assembled together.
Patent GB-455253-A (GB)
Title: Improvements in preparation of cellulose ethers
IPC: C08B11/00
Filed: 1935-09-18
Abstract: Cellulose ethers are obtained by treatment of cellulose with etherifying agents in presence of quaternary ammonium hydroxides. Trimethyl-ethyl-ammonium hydroxide trimethyl-2-methylallyl ammonium hydroxide trimethylp - chlorobenzyl ammonium hydroxide and similar compounds containing methyl, ethyl, propyl, butyl, amyl, hexyl, benzyl, allyl, and chlor - benzyl, radicals are specified.  The reaction may be carried out in solution or suspension.  Cotton linters, cotton, sulphite wood pulp, regenerated cellulose such as viscose or cuprammonium rayon, or hydrolyzed cellulose esters may be used as starting material. Degraded cellulose material may also be used.  Cellulose may be dissolved in the quaternary ammonium base and then treated with etherifying agent.  Caustic soda may be added to the solution of cellulose in the organic base prior to etherification.  The etherifying agent may be an alkyl, aralkyl, hydroxy alkyl, or alkylene ester of an inorganic acid such as ethyl chloride, bromide, iodide, or sulphate, or ethylene chlorhydrin, or it may be an ethylene oxide.  In an example, wood pulp is dissolved in trimethyl-benzyl ammonium hydroxide in a heated dough mixer. Caustic soda solution is added and then dimethyl sulphate.  After several hours the reaction mass is diluted with water and neutralized with acetic acid so as to precipitate methyl cellulose.  Dilute sulphuric acid may be used for neutralization. In other examples ethyl bromide, diethyl sulphate, benzyl chloride, 2-methyl-allyl chloride, and ethylene oxide are used as etherifying agents.  The cellulose ethers in their primary solutions may be further etherified and mixed ethers such as ethyl benzyl cellulose may be obtained. Ethylene oxide may be used in gaseous form and passed into a solution of cellulose in trimethyl benzyl ammonium hydroxide.  In another example, bleached sulphite wood pulp is dissolved in an aqueous solution of trimethyl benzyl ammonium hydroxide and then 2-methyl allyl chloride is added.  The cellulose methylallyl ether which separates is filtered and washed.  It is soluble in strong acetic acid solution.  The cellulose ethers obtained may be used for the manufacture of filaments and films.  Cellulose and a cellulose ether obtained by the process may be dissolved in an aqueous solution of a quaternary ammonium hydroxide and the solution may be used for the production of filaments or films.
Patent GB-251491-A (GB)
Title: Improvements in and relating to dyes and dyeing
IPC: C09B9/00
Filed: 1924-11-01
Abstract: 251,491. Morton, J., Jones, J. I. M., Wylam, B., Harris, J. E. G., and Morton Sundour Fabrics, Ltd. Nov. 1, 1924. Leuco compounds of vat-dyes, esters of.-Vat dyestuffs are converted into soluble derivatives by treating in the presence of a metal and a tertiary base with chlorsulphonic acid or its salts, fuming sulphuric acid, sulphuric anhydride, or salts of pyrosulphuric acid; the dyestuff, metal, and base may be heated together prior to the addition of the chlorsulphonic acid etc.; the reaction is in some cases facilitated by an addition of an acid or a salt. The products may be isolated by filtration after addition of a little water; the solid residue may be further dissolved in dilute alkali and reprecipitated by addition of salt. The following parent materials are specified:-as tertiary bases, pyridine, quinoline, dimethylaniline, or a homologue or substitution product thereof; as metals, copper, zinc, and magnesium; as acids or acid salts, stannous chloride; as vat dyestuffs, flavanthrone, indanthrone, dibenzanthrone, dichlor-isodibenzanthrone, dimethoxy-dibenzanthrone, anthraquinone-1(NH)-2(CO)-naphthacridone, indigo, and dichlor- or dibrom-indigo. Specifications 186,057, 202,630, and 202,632 are referred to.
Patent GB-168781-A (GB)
Title: Improved safety device for colliery and the like winding engines
IPC: B66B1/12
Filed: 1920-09-10
Abstract: 168,781. Pratt, F. Sept. 10, 1920. Emergency stop gear.-A brake is applied automatically to a winding-gear when the operator releases the controlling-handle unintentionally. During winding, a trigger b is gripped to the main handle a by the operator. When the handle a is released, the trigger is drawn into the position shown in dotted lines through the medium of a weighted lever f. This movement rotates a valve k and thus allows steam or other pressure fluid to depress a piston o and apply a brake by tilting the weighted lever q. The brake can be applied independently at any time during the winding- operation by pressing the treadle formed on the shaft q.
Patent GB-1458940-A (GB)
Title: Method of and device for grinding grooves
IPC: G11B5/127
Filed: 1975-06-20
Abstract: 1458940 Grinding grooves PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 June 1975 [5 July 1974] 26316/75 Heading B3D [Also in Division G5] A method of forming a number of shallow mutually parallel grooves 3 ... 7, Fig. 1, in a workpiece 2 comprises pressing the workpiece against a rotating drum 1 on the circumference of which a metal wire 8 is stretched in a circumferential groove in such a manner that part of its cross-section projects above the surface of the drum. The method may be applied to the manufacture of a magnetic transducer head of a ferrite composition and the drum may have a groove or grooves around which a wire is stretched once or a number of times or, as shown, have a plurality of parallel grooves in each of which is stretched a wire 8 ... 12, the cross-section of the or each groove being V- shaped. The workpiece is pressed against the drum so that the wires, in the presence of an abrasive and abrasive liquid, grind semicircular grooves in the surface of the workpiece, the grooves being at a mutual distance of 10 microns. A magnetic transducer having two components 16, 17, Figs. 2a and 2b, of ferrite composition are initially connected together and formed with grooves 18 ... 22 using the drum shown in Fig. 1. Sawcuts 23 ... 26 are then made in the assembly and filled with non- magnetic material and the assembly is then severed into separate transducer head cores 27...30. Three ferrite components 31, 32, 33, Figs. 3a and 3b, are formed with grooves 34 ... 40 using the drum shown in Fig. 1, and are cemented together to form an assembly 41 which is then severed along lines 42, 43, the central portion forming the core of a "tunnel erase" head having a writing gap 44 behind which, in the direction of tape travel are two erasing gaps 45, 46 separated by a tunnel constituted by the groove 35.
Patent GB-332113-A (GB)
Title: Improvements in variable speed and reversing gearing
IPC: F16H3/42
Filed: 1929-08-29
Abstract: 332,113. Kambo, L. Dec. 3, 1928, [Con. vention date]. Course-recording apparatus. - Variable-speed gearing suitable for use in the course-recording apparatus described in Specification 300,525 comprises a driving-wheel 3 with teeth which can yield inwardly against springs gearing with a wheel 7 with straight teeth. The wheel 7 is fast on a spindle 8 which can be turned about an axis in the plane of Fig. 1 so as to vary the inclination of the straight teeth to the paths of the rows of pin teeth, and so vary in a continuous manner the speed and direction of motion of shaft 8. Shaft 8 is supported in a ring 9 which is turnable in its own plane by a handle 12 projecting through a slotted member 10. A bevel pair 13, 14 makes connection at all times to a driven shaft 2 fixed in position.
Patent GB-738456-A (GB)
Title: Improvements in or relating to preparation of diacyl cyanides
Inventor: ARNOLD LAWRENCE FRED
Filed: 1953-09-24
Abstract: Di-acyl cyanides are prepared by reacting, in the liquid phase, a carboxylic acid anhydride with hydrogen cyanide in the presence of a picoline as catalyst.  The catalyst may be dissolved in a liquid carboxylic acid anhydride and then gaseous hydrogen cyanide bubbled into the solution with cooling or the three components may be mixed in a closed vessel and the mixture forced through a reaction tube under pressure.  Inert solvents such as benzene, dioxane and nitrobenzene may be present.  In general from 0.01 to 5 per cent of catalyst may be used.  Preferably about 1.2 to 4 mols. of acid anhydride are present per mol. of hydrogen cyanide. Temperatures not exceeding 100 DEG  C. are normally used and may be as low as -70 DEG C.  Examples describe the use of a -, b - and g -picolines in the liquid phase formation of 1-acetoxy-1,1-dicyano-ethane from acetic anhydride and hydrogen cyanide and comparison is made with the yields obtained using other basic catalysts.  Specifications 653,468 and 690,128 are referred to.
Patent GB-997201-A (GB)
Title: Fluid flow control valves
Inventor: KUNZER WERNER DR
IPC: F16K1/30
Filed: 1962-07-10
Abstract: 997,201. Valves. BADISCHE ANILIN- & SODA - FABRIK A.G., and KNAPSACK - GREISHEIM A.G. July 10, 1962 [July 21, 1961] No. 26423/62. Heading F2V. The conical obturating member 7 has a lower stem-portion 5 with a head member 12 engaged in a recess 31 in an upper stem portion 13 threaded into a gland element 17 which is screwed into the body 1 and retained by a locknut 18. The stem portion 5 passes through packing 6 which latter is supported on bushes 14, 15 and forced into contact with the body 1 by the element 17 via an intermediate member 16. A nut 25 securing the stem portion 13 to an operating wheel 22 is covered by a ring 26 of synthetic plastic material, e.g. P.V.C. polystyrene or polyethylene. The top 30 of the body 1, a bonnet 27 and the upper part of the gland 17 are of hexagonal shape; the bonnet 27 embodies a port 29 to permit escape of gas leaking past the packing 6. The lower end of the body 1 has a threaded conical-portion for screwing into a gas cylinder. The packing 6 consists of pre-stressed self-lubricating rings; the lubricant may be graphite, P.T.F.E., chlorinated paraffins, molybdenum disulphide or P.T.F.E. impregnated with the latter.
Patent GB-519167-A (GB)
Title: Improvements in or relating to apparatus for the administration of anaesthetics
IPC: A61M16/10
Filed: 1938-09-12
Abstract: 519,167. Respiratory appliances. CADZOW, R. Sept. 12, 1938, No. 26517. Drawings to Specification. [Class 81 (ii)] In anaesthetic or analgesia apparatus of the self-administering type the change-over or selecting valve is mounted directly on to the facepiece. The valve is preferably fitted with a . return spring so that the valve tends to admit air to the facepiece.
Patent GB-323016-A (GB)
Title: Improvements in or relating to sound reproducing apparatus
IPC: H04H60/04
Filed: 1928-09-18
Abstract: 323,016. Electramonic Co., Ltd., Tyrrell, S. J., Tyrrell, L. N., and Sayers, D. W. Sept. 18, 1928. Systems for transmitting music. - The invention relates to systems in which an amplified reproduction is obtained selectivelv from several sources, such as gramophone records, and comprises in 'its simplest form the arrangement shown in Fig. 1, in which by moving the contact arm 5 over the high resistances 3, 4 from the central point, either of the sources 1, 2 may be introduced with increasing effect. In a modification, the sources are coupled to the resistances 3, 4 through transformers. Fig. 5 shows an arrangement in' which a third source 19 may be introduced by a contact arm 21 moving over a resistance 20 either independently or superposed on either of the sources 1, 2, while Fig. 7 shows a further development in which any of the four sources may be switched in independently, or either of the sources 1, 2 may be combined with either of the sources 17, 22.
Patent GB-922099-A (GB)
Title: Improvements in electrical resistors
Inventor: NOBLE SAMUEL MCCRUDDEN
IPC: H01C10/32
Filed: 1960-08-02
Abstract: 922,099. Resistive coatings. SHORT BROS. & HARLAND Ltd. July 28, 1961 [Aug. 2, 1960], No. 26740/60. Class 37. A resistance element comprises a substrate having a surface consisting of a large number of minute isolated plateaux standing out of the substrate, and a thin conducting layer deposited on the surface of the substrate in such a way that the oblique faces heading up to the plateaux have a thinner deposit of conducting material than the plateaux surface. A sintered aluminium oxide substrate 12, Fig. 5, with a diamond ground finish to form a large number of isolated plateaux is passed through a cleaning process, Fig. 1, and heated to 300‹ C. in a highvacuum chamber. High purity argon is admitted to the chamber to increase the pressure to a point where an intense discharge forms on a pure aluminium cathode maintained at high voltage. The substrate surfaces are bombarded and become extremely hot and the flow of argon is stopped and high vacuum 10<SP>-4</SP> mm. is restored in minimum time and the deposition of metal via a mask with an annular slot, Fig. 2 (not shown), is carried out before the surface can be contaminated. The resistive element is then aged for several hours at 300‹ C. in an atmosphere of pure argon. The terminal sections of the track may be reinforced by an additional heavy deposit of the track material. The mounted resistance element 26 thus produced is used in a potentiometer, Fig. 5. The potentiometer comprises a cylindrical body 16 provided with an axial bore which carries two bearings 18, 19 supporting a spindle 20. The spindle and bearings are retained by screwing plate 21 to the body and a wiper assembly 23, 24 is secured to spindle 20 by screw 25. The resistance element 26 carries terminals 28, 29, 30 and fits into the body portion so that a section of the wiper assembly bears on the centre terminal 30. The unit is sealed by O rings 31, 32 and the element is retained by spinning over the edge of the body 16.
Patent GB-1388982-A (GB)
Title: Slide identification clip
IPC: G03B21/64
Filed: 1973-06-05
Abstract: 1388982 Audio-visual apparatus MINNESOTA MINING & MFG CO 5 June 1973 [6 June 1972] 26774/73 Heading G5R A photographic transparency slide 12 carries an identification clip 10 comprising two mutually perpendicular walls 16, 17 supporting a strip or magnetic record tape 23 backed by a strip of resilient material 21. The clip 10 may be secured to the slide 12 by a pressure-sensitive adhesive layer 25, Fig. 4, by a resilient upward extension (40) of the lower wall of the clip, Fig. 5 (not shown), or by bent-over tabs (49, 50) at the ends of the front wall of the clip Figs. 6 to 8 (hot shown).
Patent GB-884825-A (GB)
Title: Improvements in or relating to the purification of liquors containing thiocyanate
Inventor: BADGER EDWARD HENRY MICHAEL
IPC: C02F3/12
Filed: 1959-08-05
Abstract: The treatment of gas-works liquors with an aerobic micro-organism capable of removing thiocyanate by oxidation is improved by cultivating the organism on wooden slats or baffles placed in the treatment tank.