baber/WOPTO huggingface dataset:
Patent GB-328496-A (GB)
Title: Improvements in or relating to frames for photographs and the like
IPC: A47G1/14
Filed: 1929-06-24
Abstract: 328,496. Hill, A. G., and British Metallising Co., Ltd. June 24, 1929. Picture and like frames. - In picture, photograph, or like frames in which a detachable back is held in place by rotatable fastening-devices, the fastening-devices are so arranged as to lie flush with the back of the frame. The corners of the back-plate b are formed with rabbets c, which are adapted to rest in circular depressions in the frame a. In the depressions are mounted turnbuttons e having recesses h in their edges, to allow the rabbets c to pass. The turn-buttons are rotated by means of a screwdriver &c., so as to pass over the rabbets and hold the back-plate in position. The turn-buttons may be disposed at the sides of the back-plate, instead of at the corners. A hinged strut l may be provided.
Patent GB-516498-A (GB)
Title: Improvements relating to apparatus for the abrasive cleaning or polishing of castings and other products
IPC: B24C9/00
Filed: 1938-06-30
Abstract: 516,498. Sand-blast. LUCAS, A. R. June 30, 1938, No. 19464. [Class 60] Castings &c. are cleaned or polished by abrasive material, which may be crushed chilled cast iron shot, projected on to the casting by means of pressure liquid, or pressure liquid associated with pressure air ; the spent abrasive being collected for re-use. The casting &c. is placed in a chamber a having a sliding door a<1> and rests on a turn-table b having an axle' b' in bearings on a bogie c which may be moved on rails c<1> into and out of the chamber a. The axle carries a pulley b<2> encircled by a belt d connected at one end to a spring, and at the other end to one arm of a pedal.d' pivoted to the bogie c the other arm of the pedal projecting through a slot in the chamber wall, so as to be operated to cause the table b to rotate; the table may be rotated by power. The abrasive is projected by a nozzle e<1> on the end of a tube e passing through a slot a<3> and movable by the operator; an inspection window a<4> is provided andan electric light may be provided in the chamber a. The bottom of the chamber a is inclined at a<5> towards an outlet grid a<7> from which water, abrasive &c. passes to a tank f, divided to provide an upper tank f normally closed by a valve g, engaging a rubber seating washer g' and operable through a lever h by a handle h<2>. The lower part of the tank f is connected at k' to a pressure water conduit k, which also passes through the lower part of the tank f and has an opening k<2>, which may have a scoop k<3> to allow abrasive to be drawn into the conduit and passed through a flexible pipe e<2> to the tube e. In operation, water and abrasive &c. collects in the tank f<1>, overflow carrying dust passing along an inclined trough j which may have transverse baffles to trap abrasive and heavier sand carried off ; the supply of abrasive in the lower tank f is replenished at intervals by closing a valve k' in the conduit k and depressing the valve g to allow abrasive to pass from the tank f<1>. The abrasive in the tank f<1> is stirred up by leakage of water past the valve g, or perforations may be made in the valve for this purpose. Pressure air may be used with the pressure water, being introduced into the conduit k; abrasive may be fed to the circuit in any desired manner other than from the tank f.
Patent GB-616795-A (GB)
Title: Improvements relating to high frequency electrical heating
IPC: H05B6/50
Filed: 1945-07-30
Abstract: 616,795. Automatic control systems. MITTEL MANN, E. July 30, 1945, No. 19513. Convention date, July 21, 1944. [Class 38 (iv)] [Also in Group XL (c)] In a high-frequency heating apparatus, in which a high-frequency generator feeds a reactive heater through a coupling device, the voltage across the resonant circuit controls means for adjusting the coupler. The power output of the high-frequency oscillator G, Fig. 3, is adjusted to an arbitrary level by setting resistance G1 in the common cathode lead of the oscillator valves, the indication of the valve voltmeter V being brought to the point O. The material H to be heated is inserted between the electrodes and the coupling condensers C2, adjusted until the valve voltmeter indicates the value M. The potentiometer P may be ganged to the resistance G1 to render the indications independent of the power level at which the adjustment is being made. One or other of the thyratrons F5 and F6 fed from the secondaries of the transformer F9 is fired if the amplitude of the high-frequency oscillations varies from the predetermined value causing the motor F4 to vary the coupling condenser C2 and restore the amplitude to the optimum value. Various methods of coupling the load to the oscillator are described (see Group XL (c)). In a modification, Fig. 7, an inductive heater H6 is employed, the coupling being varied by slugs C8 driven along the axis of the coil G9 by a. screwed shaft C10. A coil V4 coupled to the coil G9 produces a D.C. potential across the resistance. V6 to provide negative bias for the valve V7, the bias of valve V8 being derived from a potentiometer V9 connected across the power supply. If the bias potential applied to valve V7 varies from normal, the potential of the anodes of valve V7, V8 varies and causes one of the thyratrons F15, F16 to fire and the motor F20 to run and adjust the coupling to nullify the variation.
Patent GB-1040232-A (GB)
Title: Improvements in or relating to blocking oscillators
IPC: H03K3/30
Filed: 1964-05-11
Abstract: 1,040,232. Transistor blocking oscillator circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 11, 1964 [May 14, 1963], No. 19541/64. Heading H3T. In a transistor blocking oscillator the timing capacitor 2 is discharged (or charged) during the flyback through the transistor and the inductance of the primary winding of the transformer in order to add a sine-wave component to the capacitor flyback current and thereby to linearize the voltage wave developed across the capacitor during the flyback. The waveform is used to drive an output transistor 16 feeding the deflection coils 18 of a frame timebase circuit and it is explained that the peak value of the back E.M.F. developed across the output transistor and the tendency to avalanche breakdown is reduced if the change in current during the flyback is linear and this requires a linear flyback driving waveform. Resistors 4 and 8 permit adjustment of the amplitude and frequency of the output wave and negative feedback can be applied to a capacitor in series with the timing capacitor 2 to linearize the deflection waveform, Fig. 6 (not shown). The timing capacitor may alternatively be connected across resistor 4 and the resulting D.C. component of the output waveform eliminated by a blocking capacitor or as described in Specifications 935, 722 and 1,040,231.
Patent GB-1407145-A (GB)
Title: Heterogeneous melt stabilization hydrolysis of oxymethylene  copolymers
IPC: C08G2/18
Filed: 1973-04-25
Abstract: 1407145 Stabilization of oxymethylene copolymers CELANESE CORP 25 April 1973 [26 April 1972] 19589/73 Heading C3P An oxymethylene copolymer having a melting point above 150‹ C., the molecules of the copolymer containing from 60 to 99À6 mol per cent of comparatively unstable oxymethylene units interspersed with comparatively stable -OR- units wherein R is a divalent radical containing at least two carbon atoms directly linked to each other, with any substituents on the R radical being inert and each -OR- unit being positioned between two oxymethylene units, at least part of the terminal portions of the molecules comprising the unstable units, is stabilized by forming from the copolymer and from 2 to 25 weight per cent, based on the copolymer, of a reactant which is water, an alcohol, or a mixture thereof, a heterogeneous system consisting essentially of molten copolymer and vaporous reactant in a reaction zone by maintaining the reaction zone at a temperature above the melting point of the copolymer and at a pressure sufficient to maintain the copolymer in a molten state and the reactant in a vaporous state, and reacting the system under the above conditions of temperature and pressure for from 0À1 to 15 minutes to remove unstable oxymethylene units from the terminal portions of the copolymer molecules so that at least 90% of the terminal chains of the resulting poymer are terminated by the stable -OR- units, the stabilization reaction being conducted in the presence of from 0À05 to 10À0 weight per cent (based on copolymer weight) of a stabilizer comprising an acid scavenger or an acid scavenger and an antioxidant. In the examples a trioxane-ethylene oxide copolymer is treated with water, calcium ricinoleate, 2,2<SP>1</SP>-methylene bis-(4-methyl-6-t-butyl phenol), ethylene bisstearamide, cyanoguanidine and melamine in a single screw extruder and a co-rotating, intermeshed twin-screw extruder.
Patent GB-204665-A (GB)
Title: Improvements in the manufacture of handles for household and like utensils
IPC: A47J45/06
Filed: 1923-07-31
Abstract: 204,665. Soc. Franþaise des Fers EmaillÚs. Oct. 17,1922, [Convention date]. Handles.-A metal loop or handle for household or like utensils is formed from a pair of stamped annular shells A, B, each provided with a fixing plate b, d, the shells being assembled together and seized by chasing a projecting edge e of the shell A into a depression f on the other. The handle is stated to be especially suitable for vessels intended to be subsequently enamelled or otherwise treated.
Patent GB-314397-A (GB)
Title: Improvements in sprinkler heads for fire-extinguishing apparatus
IPC: A62C37/10
Filed: 1929-06-26
Abstract: 314,397. Doughty, H. W. June 26, 1928, [Convention date]. Sprinkler, automatic. - In a sprinkler head of the kind in which the liquid outlet is closed by a frangible diaphragm which is held in place by a fusible link, a thin metal diaphragm 18 is held between two centrally apertured washers 14, 15 between the nozzle member 5 and the yoke 9. The aperture in the upper washer is closed by a dished disc 20 which is held in place by a fusible link 12 adjustably held by a screw 10 and locking clamp 13. The washers may be coated, before assembly, with a suitable luting material such as glycerine and litharge. In use, the disc 20 is released by fusion of the link 12, and the pressure in the sprinkler system or apparatus then ruptures the diaphragm 18.
Patent GB-1379521-A (GB)
Title: Cyanine dyes and photographic silver halide emulsions containing them
IPC: C09B23/10
Filed: 1972-04-27
Abstract: 1379521 Cyanoethyl-phenylindole and its carboxaldehyde EASTMAN KODAK CO 27 April 1972 [3 May 1971] 19693/72 Heading C2C [Also in Divisions G2 and C4] Acrylonitrile and 2-phenylindole are reacted using trimethylbenzylammonium hydroxide as catalyst to form 1-(2-cyanoethyl)-2-phenylindole which is then reacted with phosphorus oxychloride/dimethyl formamide complex to form 1 - (2 - cyanoethyl) - 2 - phenylindole - 3 - carboxaldehyde.
Patent GB-318341-A (GB)
Title: Improvements in signalling devices for road and other tracks
IPC: G08G1/09
Filed: 1928-07-06
Abstract: 318,341. Mehta, D. P. July 6, 1928. Road signals for controlling traffic.-Signalling- apparatus for use in directing traffic at road junctions comprises a box 8 containing a source of light 9 and a bell 25 and adapted when rotated about a pillar 1 to lift or release by means of a cam plate 14<a> and levers 16 semaphores 11 so as to mask or expose " stop " or " go on " signs on fixed plates 18<a>. When desired, the semaphores 11 may all be held in the raised position by pivoted supporting levers 19 or by hinged brackets attached to the plates 18a. The clapper of the bell 25 is moved by stops 32 carried by the box 8. Lamps 33 are arranged in the box 8 which has four panels fitted with red and green glass alternately. The box may be rotated by handles 18 or by an electric motor through gearing. The cam plate 14<a> has a removable attachment whereby only one semaphore is worked by the revolution of the box.
Patent GB-1074891-A (GB)
Title: Process for the manufacture of infra-red reffective materials, and infra-red reflective products
IPC: C09C1/40
Filed: 1955-07-07
Abstract: Infra-red reflective pigments are formed by sintering the mixture of at least one inorganic material with at least one infra-red reflecting material and then comminuting the sintered body.  The pigments may be rendered weather resistant by the application of inorganic colloids and agglomeration prevented by wetting agents. The pigments may be added to inorganic paints, cements, synthetic resin and lacquers and to synthetic fibres and rubber.  The inorganic materials may be oxides, carbonates, ferrites, sulphates, phosphates and oxygen containing compounds of aluminium silicon, titanium, molybdenum, zirconium, vanadium, tungsten or elements of the second group of the Periodic Table. High reflectivity is obtained from the carbonates and silicates in this group and other materials used, having high reflectivity, are sulphides, selenides and tellurides of the second Periodic group elements or of antimony arsenic, thallium, lead and bismuth.  To aid sintering, alkali metal salts, boron and chromium compounds are added.
Patent GB-1081868-A (GB)
Title: Resilient joint for transmitting torque
IPC: F16D3/68
Filed: 1965-05-11
Abstract: 1,081,868. Universal joints. SOCIETA APPLICAZIONI GOMMA ANTIVIBRANTI "S.A.G.A." S.p.A. May 11, 1965 [Feb. 12, 1965], No. 19738/65. Heading F2U. A universal joint for a motor vehicle comprises two polygonal rings of rubber blocks 7, 8, the alternate apices of which carry metal inerts 10, 12 connected by b Its 22 o a central plate 14 whilst the other apices of the rings are respectively connected to arms 2, 5 of spiders 1, 4. The rubber blocks are precompressed during assembly. The spider 1 carries a pin 3 slidable in a ball 6 engaging a socket 9 fast with the spider 4 to centre the joint.
Patent GB-147745-A (GB)
Title: Process and apparatus for the continuous extraction of oil and the like
IPC: C11B1/10
Filed: 1920-07-08
Abstract: 147,745. Wilbuschewitsch, M. July 8, 1920. Fats and fatty oils, extracting by solvents. In an apparatus for the continuous extraction of oil from seeds &c. by treatment on the countercurrent principle with solvent and removal of the extract by pressure, the seed passes through a funnel a and pipe c to the bottom of a solvent or extract container b from which it is carried through solvent by conveyers d, e to a press f. The pressed mass falls into a pipe h and is passed through as many similar apparatus as desired to the last press s from which it falls to a chamber v through which it is taken by a conveyer x while being treated with steam from a pipe w for the removal of residual solvent. Pure solvent from the container 10 is brought by a pipe 21 on to the most exhausted material just before it reaches the last press s, and flows through the conveyer tubes R, Q to the container m from which it overflows to the conveyer tubes L, K, and so on to the pipe 12 and still 13. The extract squeezed out by the presses f, n, s passes by pipes i, o, t to the previous extraction apparatus. The extract is distilled by steam, the vapours passing oy a pipe 17 to a condenser 18, connected to the container 10 from which the water is withdrawn by a pipe 20. Vapours from the container b, g m and 10 are led by pipes 8 to a separator 7 connected to a vacuum pump, and the residual solvent vapours pass to a separator 2 connected by a pipe 6 to the vacuum pump.
Patent GB-864697-A (GB)
Title: Polymeric organosilicon compositions
Inventor: GALLAGHER JAMES JOSEPH
IPC: C08L63/00
Filed: 1958-06-20
Abstract: Coating compositions are made by reacting an organopolysiloxane having from 1,35 to 2,0 organo groups per Si atom with an epoxide resin by heating to a homogenous state in the presence of an oxygenated solvent of boiling point not less than 150 DEG C.  If desired the solvent may be diluted with up to 75% by weight of an aromatic hydrocarbon solvent.  The reaction is preferably effected at 150 DEG  to 250 DEG C. with removal of water as it is formed and, if desired, in an inert atmosphere, at normal or under reduced pressures, and in the absence or presence of catalysts, e.g. metal carboxylates, oxides and carbonates, mineral acids, certain halides and bases.  The siloxanes used may contain Sibonded alkyl, alkenyl, aryl and alkaryl groups and H atoms.  Numerous examples of epoxy resins and solvents are given, the preferred solvents being 2-ethoxyethyl acetate, cyclohexanone and methyl- and dimethyl-cyclohexanones.  The epoxy resin can be used in amount of 10 to 90% and the solvent in amount of 10 to 200% of the total weight of the epoxy and siloxane resins.  If desired the reaction products can be isolated from the solvent in which they are made.  The products may be hardened by heating at 300 DEG C. in the absence or presence of hardening agents, numerous examples of which are given, which may be used in amount of 0,1 to 80% by weight of the reaction product. In typical Examples (1) solutions of a methylphenylsiloxane in xylene and zinc 2-ethylhexoate in toluene were mixed with a solution of an epoxy resin (based on diphenylolpropane) in cyclohexanone, and the resulting solution was heated to 200 DEG C. with partial removal of solvent, and further p  heated at 200 DEG  to 220 DEG C. after addition of more cyclohexanone. The reaction product was diluted with xylene-n-butanol mixture, filtered through diatomaceous earth and adjusted to a 50% solids content by adding further solvent mixture; (8) methylphenylsiloxane in butyl acetate was similarly reacted with a cyclohexanone solution of a phenolformaldehyde condensate etherified with epichlorhydrin, in the presence of AlCl3.
Patent GB-1147947-A (GB)
Title: Continuous crystallization apparatus for even grains
IPC: B01D9/00
Filed: 1966-05-05
Abstract: 1,147,947. Crystallizing. DAIDO NAMARIKAKOKI CO. Ltd. 5 May, 1966, No. 19868/66. Heading BIG. In a cyclic system for continuously producing sodium sulphate crystals of substantially uniform size involving supersaturation by evaporation or cooling, the supersaturated solution passes down a tube 7 and up around the tube in a crystallization vessel 8 having walls 8 which in cross-section (ignoring the top section) approximate to an invented hyperbolic curve of formula x<SP>12</SP>y=1. As shown in Fig. 3, the upward flow from tube 7, and consequently the crystal size, may be varied by vertically moving the position of a partial obstruction 21.
Patent GB-229583-A (GB)
Title: Improvements in seats or saddles for cycles, motor cycles, and like vehicles
IPC: B62J1/08
Filed: 1924-08-23
Abstract: 229,583. Lowenthal, A. E., and Sargent, A. Aug. 23, 1924. Saddles. - In a saddle for motor and other cycles &c., the frame of the top, which may be of the hammock type, comprises an inverted U- shaped peak member 1 having a sliding pin-andslot connection 11, 12 with the under frame 7, a spring 13 being interposed. The rear end 2 of the top frame is supported on springs 14, and is connected by side members 3 to the peak member 1.
Patent GB-696862-A (GB)
Title: Manufacture of new methylpyridines
IPC: C07D213/74
Filed: 1951-08-24
Abstract: The invention comprises 6-[N-(b -piperidinoethyl)-N-alkylamino]-methylpyridines of the general formula <FORM:0696862/IV (b)/1> wherein the alkyl group contains 1 to 3 carbon atoms and the methyl group occupies the 2- or 4-position of the pyridine nucleus, and acid addition salts thereof, and a process for the preparation of the above compounds by reacting the required 6-alkylamino methylpyridine, or an N-alkali metal derivative thereof, with a b -piperidino-ethyl halide, e.g. the chloride or bromide, or by reacting the required 6-(b -piperidino-ethylamino)-methylpyridine with an alkyl halide, e.g. the chloride, bromide or iodide.  The above reactions are preferably carried out in a hydrocarbon solvent, e.g. benzene or toluene, and in the presence of an alkali metal amide or hydride, e.g. sodamide or lithium amide or sodium or lithium hydride.  The reaction temperatures may be in the range 75 DEG  to 150 DEG  C. and preferably from 100 DEG  to 120 DEG  C.  Acid addition salts are formed by normal methods.  In the examples the following compounds are prepared: 6-[N-(b -piperidino-ethyl)-N-methyl-amino]-2-methylpyridine and its salts derived from hydrochloric, sulphuric, tartaric, maleic and citric acid, 6-[N-(b -piperidino - ethyl) - N - isopropylamino] - 4 - methylpyridine and its hydrochloride salt, 6 - [N - (b  - piperidino - ethyl) - N - ethylamino] - 4 - methylpyridine and its hydrochloride salt, and 6 - (N - (b  - piperidino - ethyl) - N - n - propylamino] - 4 - methylpyridine and its hydrochloride salt.  The following compounds are also mentioned: 6-[N-(b -piperidino-ethyl)-N methylamino] - 4 - methylpyridine, 6 - [N - (b  - piperidino - ethyl) - N - isopropylamino] - , 6 - [N - (b  - piperidino - ethyl) - N - ethylamino] -, and 6 - [N - (b  - piperidino - ethyl) - N - n - propylamino] - 2 - methylpyridine.  Similar 2-and 4-methylpyridine derivatives may be prepared having an N-methyl, ethyl and isopropyl radical.  6 - Ethylamino - and 6 - isopropylamino - 4 - methylpyridine are prepared from the reaction of 6-amino-4-methylpyridine and sodamide and adding ethyl iodide and isopropyl bromide respectively to the reaction mixture.  6 - Methylamino - 2 - methylpyridine is prepared by a similar method using methyl iodide.  6 - (b  - Piperidino - ethylamino) - 4 - methylpyridine is prepared from the reaction of sodamide and 6-amino-4-methylpyridine and adding b -piperidino-ethyl chloride to the reaction mixture.
Patent GB-380877-A (GB)
Title: Improvements in method of and means for controlling webs of web slitting machines
IPC: B65H18/10
Filed: 1931-07-13
Abstract: 380,877. Slitting webs. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Cameron Machine Co. ; 61, Poplar Street, Brooklyn, New York, U.S.A.) July 13, 1931, No. 20058. [Class 31 (i).] A system for slitting flexible material comprises a feed roll, a take-up roll driven at suitable speed, slitters either score-cut or shearcut, driven at an appropriate speed, and one or more stabilizing rolls situated between the feed and take-up rolls and adapted to engage the web with a greater tractive effect than that of the slitters, and driven at such a speed as to oppose excessive acceleration or retardation of the web, and thus prevent tearing at the slitters. The web 3 is led from a braked supply roll 4 over guide rolls 5 and stabilizing rolls 9, 10 to a backing roll 1, where it is slit by a scorecut slitter 2 ; the slit webs then passing on to frictionally-driven take-up rolls 7, 8. The backing roll 1 is power driven and drives the stabilizing rolls through positive gearing (not shown).
Patent GB-358054-A (GB)
IPC: H01F21/04
Filed: 1930-07-02
Abstract: 358,054. High frequency transformers. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Pressley, J. H. ; 1137, West 6th Street, Marion, Indiana, U.S.A.) July 2, 1930, No. 20127. Convention date, Aug. 3, 1929. [Class 38 (ii).] A high frequency transformer has three windings L1, L2, L3 so arranged that the magnetic coupling coefficient between L1 and L2 is substantially 70 per cent, between L2 and L3 15 to 20 per cent and between L1 and L3 a relatively low percentage. In the construction shown in Fig. 3, the winding L3 is mounted in a narrow groove on a former 20 which has collars 22, 21 of different diameters to receive respectively the insulating tubes on which are wound the windings L2, L1. In a modification shown in Fig. 5 the winding L3 is mounted in a groove in a disc 31 that is mounted in the end of an insulating tube D on which the winding L2 is mounted. Two further windings L1, L4 are mounted on the tube at the end remote from the disc 31 and are insulated from the winding L2 by a thin strip I of insulating material such as celluloid. The Specification contains tables of dimensions. Specifications 273,639 and 315,399, [both in Class 40 (v), Wireless signalling &c.], are referred to.