baber/WOPTO huggingface dataset:
Patent GB-661696-A (GB)
Title: Improvements in or relating to methods of, and apparatus for, manufacturing synthetic crystals
IPC: C30B11/12
Filed: 1949-03-23
Abstract: 661,696. Gems. GENERAL ELECTRIC CO., Ltd., and BROWN, K. W. March 21, 1950 [March 23, 1949], No. 7954/49. Class 43. Apparatus for making a synthetic crystal boule or rod of varying composition with substantially no interruption of the crystallization includes a plurality of reservoirs for different constituent materials and means for periodically varying the reservoir from which material is fed into a furnace chamber where it is fused and progressively crystallized on a surface. A powder dispenser 4 houses two powder containers 5, 6, each filled with alumina powder containing a different colouring agent from the other, so that by selective operation of hammer mechanisms 7, 8, a quantity of one or other of the powders may be shaken through a sieve 19 at the bottom of its container to be carried, by a flow of oxygen entering via a union 15, through a funnel 18 of the dispenser and an oxyhydrogen burner 2 to a furnace chamber 3. Hydrogen enters via a union 14 and passes through six passages equally spaced round the burner, while the oxygen passes through a central passage thereof. The molten material progressively crystallizes into a corundum rod on the top of a ceramic rod 10 supported by a metal rod 11, which is vertically adjusted by means of a rack 12 and a pinion 13 driven by an electric motor. Preferably movement of the rod 10 is automatically controlled according to the rate of growth of the corundum rod as described in Specification 633,118. The length of any coloured section may be automatically fixed by mechanism controlling the period of feed from a container, e.g. an electric timing circuit may energise the hammeroperating motors successively for predetermined periods. Material may be fed from more than one container at a time if desired. Crystals of more than two colours may be produced by using more powder containers and hammers, or by mounting several containers in a rotatable turret in the dispenser 4 such that any one of them may be brought beneath a single hammer. Alternatively the dispenser 4 may be in two (or more) parts, each housing a removable powder container, so that one container may be changed while the other is in use; in this embodiment the oxygen supply may be switched by means of valves to flow only through the container in use, escape of oxygen during change of container being thus prevented.
Patent GB-493283-A (GB)
Title: Improved apparatus for raising natural oils and other liquids by gaseous pressure
IPC: E21B34/06
Filed: 1937-04-19
Abstract: 493,283. Raising liquids by gaspressure. BROWN, N. F. April 19, 1937, No. 7975. [Class 102 (ii)] Apparatus for raising liquids in wells by gas pressure comprises a vertical eduction pipe 21 reciprocable in cylinders 6, 12, and having pistons 22 .. 24 controlling orifices 9, 10, 13. An annular chamber 8 in the cylinder 6 is permanently open to a chamber 11 surrounded by a perforated chamber 1. The latter has a gas outlet pipe 4. A pipe 3 attached to the cylinder 6 is connected to a pressure gas pipe 17. The pipe 21 is connected by a flexible tube 30 with a separator 31 having a valve controlled pipe 46 for liquid, e.g. oil, and a gas outlet 49. The pipe 21 has small and large pistons 26, 27. An hydraulic chamber 36 having a pipe opening under the piston 27 is always subjected to gas pressure. Another hydraulic chamber 37 opening to the top of the piston 27 may be subjected to gas pressure and atmospheric pressure alternately by the action of a valve 39 to cause reciprocation of the pipe 21. In a high position of the pipe 21 liquid from the casing 1 passes through ducts 14 and rises in the chamber 11 displacing the gas therein through orifices 10 to the casing 1 and thence to the pipe 4. In the lowest position of the pipe 21, as shown, pressure gas from the pipe 17 passes through. orifices 9, chamber 8, and into the chamber 11, and acts upon the surface of the liquid therein and forces it through orifices 13 and perforations 28, in the pipe 21 to the interior of the latter whence it rises upwardly and is forced into the separator 31. At a position intermediate of the extreme positions the gas pressure is cut off and the liquid is discharged through the pipe 21 by the expansion of the gas. The valve 39 may be manually or electrically actuated.
Patent GB-417929-A (GB)
Title: Improvements in or relating to coaxial conductor electric cables and to the manufacture thereof
IPC: H01B11/18
Filed: 1933-03-16
Abstract: 417,929. Cables. STANDARD TELEPHONES & CABLES, Ltd., Comiaught House, Aldwych, London.-(Western Electric Co., Inc.; 195, Broadway, New York, U.S.A.) March 16, 1933, No. 7979. [Class 36.] The outer conductor of a coaxial conductor cable is formed of a number of helically wound metal strips outside which strengthening strips are wound and is separated from the inner conductor by a cord or strip of insulating material helically wound thereon. The outer conductor 4 is made of interlocking strips shaped as shown in Fig. 2 and is wound with, metal tape. Between the conductor 4 and the inner conductor 5 is a helically wound insulating tube 6 of acetylated cotton, washed cotton or crinkled paper. The reinforcing tapes and the tube 6 are preferably wound with a lay opposite to that of the strips forming the conductor 4. Instead of the tube 6, two strings twisted together or a twisted tape of cellulose acetate may be employed. Fig. 7 shows a machine for making the cable. The central conductor is fed from a reel 23 and the insulating strip wrapped round it from a spool 25 on a rotating member 24. The strips forming the outer conductor are then supplied from spools 27 on a rotary member 26 and caused to interlock by guides 28, 29. The strengthening tapes are then applied by a rotary member 30 carrying spools 31, 32. Specification 416,865 is referred to.
Patent GB-540898-A (GB)
Title: Improvements in fluorescent lighting fittings
IPC: F21V9/16
Filed: 1940-05-03
Abstract: 540,898. Lighting fittings. SKINNER, G. D. and BENJAMIN ELECTRIC, Ltd. May 3, 1940, No. 7979. [Classes 75 (ii) and 75 (iv)] A fluorescent lighting fitting comprises a tubular electric discharge lamp 1 removably mounted in an elongated trough-like casing or reflector 4 with its axis parallel to the length of the casing, the open side of the casing being closed in by a translucent luminescent wall or screen 2. The screen 2 may have a luminescent coating applied to its inner wall or may be made of glass having luminescent material incorporated while in a plastic or molten condition. The outer surface of the screen may be formed with prisms. The lamp 1 may be cooled by filtered air circulated through the casing 4, the air being then delivered into the room in a sterilized condition. The Provisional Specification states that opaque or semi-opaque louvres may project at right angles below the luminescent screen.
Patent GB-539564-A (GB)
Title: Means for facilitating the levelling of an instrument when it is being mounted
IPC: G01C15/10
Filed: 1940-05-04
Abstract: 539,564. Indicating-apparatus. ENGLISH ELECTRIC CO., Ltd., and TILSTONE, G. May 4, 1940, No. 8063. [Class 106 (iv)] [Also in Groups XXXVI and XX] An instrument is provided with an upper support from which a readily attachable pen dulum or plumb-line can be suspended and another member which is vertically below the support when the instrument is correctly mounted. The case 4 of an instrument such as ar induction meter or relay is pro vided with an external bracket 4c having a countersunk hole and slit from its outer edge to the circumference of the hole sc that a plumb-line 2 carrying a plumb-bob 3 can be slipped into place and suspended by a ball 1 The bracket 4a may be cast integrally with the case, or a separate metal bracket may be moulded into a case which is moulded in insulating material The lower member comprises a ring 5 having its centre vertically below the point of suspension when the instrument is correctly mounted. The ring may be slit in the same manner as the bracket 4a and is attached to the case by screws 6 passing through clearance holes in the case to permit adjustment in one direction transverse to the plumb-line. Adjustment in the other transverse direction is effected by adding or removing packing shims 7. Alternatively the lower member 5 may be fixed and the upper member 4 adjustable, or both may be adjustable. Adjustment is made before the instrument is despatched, and a plumb-line is temporarily inserted when mounting the instrument. In a modification the lower member 5 has an upwardly projecting pointer over which a pointer on the plumb bob 3 lies when the instrument is correctly mounted.
Patent GB-398115-A (GB)
Title: Improvements in or relating to transmission systems for motor vehicles, more particularly for tractors
IPC: B62D49/00
Filed: 1933-03-17
Abstract: 398,115. Tractors. SOC. ANON. DES ETABLISSEMENTS E. BAUCHE, Le Chesnay, near Versailles, France. March 17, 1933, No. 8193. Convention date, Nov. 8, 1932. [Classes 79 (i) and 79 (iii).] Comprises a tractor in which the common axis of the internal-combustion engine 1 and the gear-box 2 is parallel to and between the wheel axles 15, 5, the driving wheels 6, 7 being driven through a differential gear 4 located outside the wheel 6 which is on the same side of the tractor as the gear-box. The engine and gear-box are placed as low down as possible to secure a low centre of gravity. The gear-box drives the differential gear through a chain 9 which is nearly horizontal and is not affected by the flexure of the suspension springs. A hand-wheel 12 controls the gear-box which may be of the epicyclic or other type.
Patent GB-934469-A (GB)
Title: Stereoregular polymers of alpha-substituted acrylonitriles
IPC: C08F20/50
Filed: 1962-03-02
Abstract: Linear, head to tail, high molecular weight polymers of monomers of alpha-substituted acrylonitriles having the general formula <FORM:0934469/IV(a)/1> where is a linear aliphatic group containing at least two carbon atoms or a branched aliphatic or cycloaliphatic group are prepared using as catalyst a metal organic compound of the general formula MR1aR11bHac where M is a Group Ia, II or III metal of the Mendel<\>aeeff Periodic Table; R1 and R11 are the same or different alkyl, aryl or cycloalkyl groups; Ha is a halogen; a is 0, 1, 2 or 3, b is 1, 2 or 3 and c is 0, 1 or 2 and is zero when M is a Group Ia metal; a+b+c corresponds to the valency of M.  The preferred catalysts are the magnesium, beryllium and lithium compounds, e.g. lithium n-butyl, magnesium phenyl bromide and beryllium diethyl.  The monomer/catalyst molar ratios are usually between 10 : 1 and 200 : 1. The polymerization is preferably carried out in an inert solvent which does not react or form complexes with the catalyst, e.g. aliphatic or aromatic hydrocarbons such as toluene and benzene. Complex forming solvents cannot be used.  The examples describe the preparation of polymers of a -ethylacrylonitrile, a -n-propylacrylonitrile and a -isopropylacrylonitrile.  The polymers may be saponified and then acidified to yield polyacids which may be used in ion-exchangers.  On heating the polymers to a few degrees below the melting temperature, cyclization through the nitrile groups which are transformed into a system of conjugated groups of the type =N-C-N-C=N-, occurs, giving the polymers the properties of oriented semiconductors.ALSO:Alpha-n-propyl acrolein is prepared by reacting together under reflux n-valeraldehyde, dimethylamine hydrochloride and a 40% formaldehyde solution.  The oxime is formed by treatment of the acrolein with hydroxylamine hydrochloride.  Alpha-n-propyl acrylonitrile is then formed by reacting the alpha-n-propyl acrolein oxime with acetic anhydride in the presence of hydroquinone.
Patent GB-1263974-A (GB)
Title: Cutting apparatus for severing a pipe
Inventor: COBLITZ SANFORD EUGENE
IPC: B23D21/10
Filed: 1969-02-14
Abstract: 1,263,974. Wheel cutters. S. E. COBLITZ. 14 Feb., 1969 [24 Jan., 1969], No. 8305/69. Heading B3W. A wheel cutter for severing pipes comprises a cutting chain 14, first and second pressure clamping jaws 10, 11, the pin 22 on which the end cutter 13 is mounted being fixed to the jaw 11 and the pin 41 of the cutter 12 at the other end of whatever length of chain is required for wrapping round a pipe to be cut being engageable in a socket 42 in the jaw 10, and stop means 18, 19 associated with the cutters 12, 13 only for limiting their depth of cut. The stop means 19 takes the form of a pair of rollers mounted on the pin 22 outside the spaced portions 23, 24 of the jaw 11. The stop means 18 also takes the form of rollers 27, 28 rotatable on journal bolts (31 only shown) and spaced from portions 29, 30 of the jaw 10 by plates 34, 35 interconnected by a bar 33 to prevent the portions 29, 30 from spreading apart. There are hooks 39, 40, only 39 visible in Fig. 3, on the inner faces of jaw portions 30, 29 respectively behind which the mounting pin 45 of a cutter on the surplus length of chain is engaged.
Patent GB-284106-A (GB)
Title: Improvements relating to shaft couplings
IPC: F16D3/10
Filed: 1927-03-26
Abstract: 284,106. Woodward, A. J. March 26, 1927. Shaft couplings; universal joints.-An adjustable shaft coupling, particularly for timing ignition magnetos, comprises a sleeve 11, Fig. 1, surrounding bosses 12, 13 respectively on the driven and driving shafts 14, 15, the boss 12 or each boss being secured to its shaft by a tapered connection to allow setting in any angular position. The sleeve coacts by an axial keyway 17 with a spline 16 on the boss 12 and by an inclined slot 19 with a stud or projection 18 on the boss 13. The sleeve 11 is actuated by a fork 20 from, say, the steering- wheel of a vehicle. In a modification, the sleeve 11, Fig. 7, surrounds the driven boss 12, on which it is axially slidable, and is surrounded by a drum 25 on the shaft 15, this drum carrying an inwardly-directed pin or helical spline or splines to engage a helical recess or recesses 27 in the sleeve 11. The coupling-parts may be of metal or, particularly in the form shown in Fig. 7, of fibre or rubber.
Patent GB-1433092-A (GB)
Title: Phenolic polymer products and processes thereof
IPC: C08G8/24
Filed: 1974-02-25
Abstract: 1433092 Laminates CELOTEX CORP 25 Feb 1974 [26 April 1973] 8281/74 Heading B5N [Also in Division C3] A laminate comprises either (1) a paper facing sheet and a layer of a phenolic polymer cellular material, or (2) a layer of the said cellular material between 2 facing sheets of an asphalt impregnated felt. The cellular material is prepared from a phenolic composition comprising a phenolic polymer and free phenol prepared by (I) first reacting o-cresol and paraformaldehyde in the presence of NaOH and (II) then reacting the resulting intermediate with paraformaldehyde and phenol, and neutralizing the product.
Patent GB-181814-A (GB)
Title: Improvements in pigeon timing clocks
IPC: G07C1/26
Filed: 1921-03-18
Abstract: 181,814. Stenberg, E. March 18, 1921. Portable checking and recording clocks for races, &c.-Relates to apparatus for recording the arrival of pigeons in a race, and for giving a permanent record on paper dials, applicable also for use as a stop-and-start clock, or for running continuously. The clock-case consists of two cylindrical members, one a fitting into the other c and locking by a partial rotation. A carrier plate h, attached to the base portion a, supports the time movement i and the pricking, locking, and releasing mechanisms; and is so arranged that these mechanisms are concealed when the casing is opened; also by this construction no indication is given on the outer casing of the position of any screws, pivots or rivets when the case is closed. The top portion c of the case carries the ring box x<2> and its operating mechanism, a toothed rim x<12> on the ring box gearing with the pinion n of the pricking and locking mechanism when the case is closed. The ring box x<2> carries a spring plunger z<2> which, in the inoperative position, engages the orifice z through which the rings are inserted. In this position, the clock is stopped by a brake i<3>, actuated' by the snail cam o<3> and bearing on the balance wheel i<2>. The case in this position can be opened by a partial rotation of the bottom a to disengage the catches g, h<5>; g<2>, h<4>; the locking- arm m being held back by the spring arm v<2>. In resetting, the lever f, which prevents overrotation of the ring-box, is moved to expose the groove d into which fits the bottom a of the case. The locking-arm m is allowed to swing out by depressing a stud r<3>, which disengages the spring arm q. On replacing the bottom of the case, the locking-arm m takes up a position behind the catch g, and, as soon as the ring box is operated, it becomes looked by the cam o<4>, to prevent opening, the cam also, through the pin o<6> and arm q<4>, returning the spring arm q to the active position. The blocking is recorded on the dials, j<2>, k<2>, as is each subsequent operation of the handle x which actuates the ring box mechanism. and further the automatic unlocking at the end of the cycle of operations. On each movement of the handle x the pricking-needle t<5> takes up a new radial position given by the snail cam o<3> through the lever u. The hinged flap v<3> strikes the needle t<5> at each operation of the ring box; the impulse being given by the lever u moved against its spring v<2> by the pins o<6> on the cam o<4>. The clock is freed at the first movement of the operating handle x subsequent to the blocking of the lock, and thus the apparatus can be used as a stop-and-start clock; the dials j<2>, k<2> rotate in 24 hours and 1 minute respectively, and as the time movement is not interfered with by the additional mechanism, any ordinary movement may be used.
Patent GB-797621-A (GB)
Title: Improvements in or relating to remote indicating system
Inventor: DICKINSON HORACE
IPC: G01D5/16
Filed: 1956-03-19
Abstract: 797,621. Electric measuring systems. VAPOR RECOVERY SYSTEMS CO. March 19, 1956, No. 8494/56. Class 40 (1). Apparatus for measuring the height of liquid 66 (Fig. 1) in a tank 67 and indicating it, in feet and inches, on separate meters, comprises a float 65 driving an inch potentiometer 30 and a foot potentiometer 32 with step-down gearing between them, the output of the inch potentiometer 30 being fed directly to the inch meter 11, and the output of the foot potentiometer 32 being fed to the foot meter 10, but opposed by a proportion of the output from the inch potentiometer 30, the proportion being determined by potential divider resistors 12, 14 and being such as to neutralize the fractional foot voltage fed to foot meter 10, so that the foot meter only reads in units of feet, and jumps from one unit to the next as the slider of potentiometer 30 completes a revolution. A rectifier 15 is located between the meters to prevent the foot meter voltage from affecting the reading on the inch meter. Adjustable resistors 16, 22 provide calibration facilities. Ganged switches may be added so that the meters may be switched to a plurality of tanks, or one tank can be indicated at a plurality of receivers.
Patent GB-160779-A (GB)
Title: Improved process for the recovery of rubber
IPC: C08J11/14
Filed: 1921-03-18
Abstract: 160,779. Bouvery, O. R., and Conort, F. P. March 26, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Devulcanizing rubber; plastic compositions containing india-rubber, &c., and paraffins.- Vulcanized rubber, &c. is ground up, mixed with about 10 per cent by weight, of water containing 2 per cent of glycerine, and 2 per cent of paraffin in powder or small fragments. The mixture is heated until the reaction sets in. The process may also be applied to new natural or imitation rubber, gutta-percha, resinous rubber, &c., and produces a product of increased plasticity and di-electric power.
Patent GB-513910-A (GB)
Title: Improvements in or relating to films, filaments, fibres or other shaped articles made by hardening proteins coagulated from their solutions
IPC: D01F4/00
Filed: 1938-03-21
Abstract: 513,910. Filaments and films from vegetable globulin. FIELDSEND, E. C., BOYES, W. H. D., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 21, 1938, No. 8659. [Class 2 (ii)] Films, filaments and the like made by coagulating and hardening dispersions of denatured vegetable globulin in aqueous media, are rendered more resistant to attack by boiling water or hot dilute acids by treating them, during or after the hardening operation, and preferably at a raised temperature, with a concentrated aqueous solution of a freely soluble halide of an alkali or alkaline earth metal or of ammonium or magnesium, said solution containing a low concentration of a hydrogen halide. The solution preferably contains not less than 30 parts of salt to 100 parts of water, and the concentration of hydrogen halide preferably lies between 0.5 and 1.5 per cent. The articles may be subjected to a subsequent treatment with a weakly alkaline solution. The following examples are given : (1) and (2), Protein extracted from pea-nuts by the process of Specification 513,896, is spun as described in Specification 467,704, and treated in a bath comprising saturated salt solution and hydrochloric acid. (3) Filaments spun as in (1) are treated in a bath containing formaldehyde, hydrochloric acid and salt. (4) to (7) Pea-nut protein and urea are dissolved in water and the solution spun into a bath containing sulphuric acid and sodium sulphate decahydrate. After stapling, the fibres are treated in a bath containing salt (calcium chloride or ammonium chloride), formaldehyde and hydrochloric acid. (8) and (9) Fibres are spun and coagulated as in (4), hardened in 30 per cent. formaldehyde, and treated in a saturated salt solution containing hydrochloric acid. (10) The treatment of (8) is modified by using one 'of the following salts-potassium chloride, lithium chloride, magnesium chloride, calcium chloride, strontium chloride, barium chloride, potassium bromide, or potassium iodide.
Patent GB-328737-A (GB)
Title: Improvements in or relating to gramophones and like talking machines
IPC: G11B19/00
Filed: 1929-03-18
Abstract: 328,737. Hibbs, L. E. March 18, 1929. Driving; speed-regulating; starting and stopping.-A gramophone turntable is driven throughout playing of a record by the energy from a flywheel which is set in motion, by a drive from a hand-lever or a pedal, to the required speed and drives the turntable spindle through a friction wheel engaging a friction disc on the spindle and movable radially thereof under the control of a governor on the flywheel shaft. A friction disc C, Fig. 1, rotates with, but can slide along, the spindle B of the turntable A and is driven by a friction disc D rotating with, but slidable on, a shaft F rotated by the revolving flywheel G fixed thereto, the position of the friction disc being controlled by a governor J on the flywheel shaft F, so that it is moved radially of the disc and inwardly as the speed of the flywheel decreases. The governors can be adjusted by a screwed boss 0, and the turntable spindle is mounted in a bracket P, Fig. 3, adjustable by a screwed rod R about a pivot Q to adjust the initial position of the disc C. The flywheel is set in motion by a hand-lever or a pedal M acting through a link, gearing V, V<1>, and a clutch W, which is disengaged by a reversal of the manual power owing to the inclination of the teeth of the gearing V, V<1>. When the machine is at rest, the disc C is raised clear of the wheel D by a pivoted lever T supported on a pivoted arm S, which arm is displaced by the wheel D under the action of the governor when the flywheel attains the required maximum speed, so that the disc descends into contact with the wheel to be driven thereby. The disc can be raised to arrest the turntable at any time by depression of a spindle U to rock the lever T.