baber/WOPTO huggingface dataset:
Patent GB-888684-A (GB)
Title: New heterocyclic sulphoxides
Inventor: BRODRICK CHARLES ISAAC
IPC: C07D281/16
Filed: 1958-02-26
Abstract: The invention comprises the compounds of formula <FORM:0888684/IV (b)/1> where at least 2 of the benzene nuclei A, B and C contain one or more nitro substituents, and their preparation by oxidation of the compounds <FORM:0888684/IV (b)/2> similarly nitro-substituted. Specified modes of oxidation are with hydrogen peroxide in the presence of glacial acetic acid as solvent at, e.g. 20 DEG C.-120 DEG C.; with hydrogen peroxide in nitrobenzene as solvent at 120 DEG C.-15 DEG C.; with perbenzoic acid; and with nitric acid at temperature not appreciably above room temperature.  Specifications 696,473 and 696,540 are referred to.
Patent GB-749187-A (GB)
Title: Process for preparing ú­-di-isopropyl benzene and terephthalic acid
Inventor: MAX NICOLAAS
IPC: C07C51/265
Filed: 1953-03-06
Abstract: A continuous process for the preparation of p-di-isopropyl benzene comprises alkylating benzene or cumone or a mixture thereof to produce a product containing o-, m- and p-di-isopropyl benzenes, subjecting the product to a distillation treatment to isolate p-di-isopropyl benzene, a fraction containing o- and m-di-isopropyl benzene and a higher boiling fraction containing higher isopropylated benzene, adding to the fraction containing o- and m-di-isopropyl benzene at least an equimolecular quantity of benzene, subjecting the mixture to a trans alkylation treatment yielding cumone, and recycling the cumone to the alkylation stage.  The p-di-isopropyl benzene may be oxidized by air in the liquid phase, as described in Specification 737,439, or oxidized by means of 30-40 per cent nitric acid to form p. terephthalic acid.  As alkylation catalyst, sulphuric acid is preferred, although aluminium chloride, boron fluoride, boron fluoride with phosphoric acid, hydrofluoric acid, aluminium silicates, phosphoric acid on kieselguhr, and titanium tetrachloride may also be used.  The transalkylation stage may be carried out at 230-260 DEG  C. when the catalyst is composed of Al2O3 and SiO2 and between 0 DEG  and 100 DEG  C. when AlCl3 is used.  Specification 737,439 is referred to.
Patent GB-718535-A (GB)
Title: Improvements in colour lighting control systems
IPC: G05D25/02
Filed: 1952-03-12
Abstract: 718,535. Lighting supply systems. WILLIAMS, R. G. March 12, 1952 [March 13, 1951], No. 6367/52. Class 38(4) In a colour lighting system in which a selected hue is obtained by combining light from a number of different electric lamps of different colours and by controlling the relative degrees of energization of the different lamps, the necessity for dimmers to control the relative energizations is avoided by utilizing the electrical resistance of one lamp, such as one of a colour not required in the production of the selected hue, to control the voltage applied to another lamp. In one arrangement, Fig. 3, permitting of the production of thirty-eight different hues from three different coloured light sources R, G, B and two white sources W, the sources are controlled by two-way micro-switches 30 . . . 37 whereby. any source may be isolated from the mains L, connected directly across the mains, or connected in series with another source (or two or more sources in parallel) across the mains. Further control is afforded by micro-switches 38, 39 which allow series or parallel connection of the two white sources. The several micro-switches may be operated by a corresponding number of cams having a common control shaft which provides for the complete cycle of hues in one revolution. A greater range of hues may be obtained if further switches are provided which allow one or both of the lamps of each source to be energized at full brilliance, or the two lamps to be energized in series with each other. The switches' may be accommodated in the standard of a table lamp, or a casing forming a support for a spotlight.
Patent GB-139022-A (GB)
Title: Strengthened extension for surgical appliances
IPC: A61F5/058
Filed: 1919-03-14
Abstract: 139,022. Lewis, H., and Lewis, L. J. March 14, 1919. Splints; tension apparatus; adjusting-devices generally applicable.-An adjustable device applicable generally to orthopµdic and fracture appliances comprises two stems a, b preferably of metal and formed respectively with a nipple a<1> and a series of recesses b. When the nipple engages the appropriate recess, the whole is held rigid by the combined action of a fixed loop c and a screw clamp d.
Patent GB-525710-A (GB)
Title: Improvements in electric battery lamps for use in surgical and like examination
IPC: A61B1/24
Filed: 1939-02-27
Abstract: 525,710. Electric battery lamps. GRINTON, R., and SMITH & SON (GLASGOW), Ltd., J. Feb. 27, 1939, No. 6383. [Class 39 (ii)] A battery lamp for use in surgical examinations comprises the usual battery casing 1 with a screwed-on extension 4 to which is pivoted at 9 a short tubular member 10 carrying a lampholder 14 and a flanged plate 11 into which a spatula may be fitted. The normal position of the parts is shown in Fig. 3 ; for use, the lamp carrier is turned about the pivot 9, to the position shown in Fig. 4, by finger pressure on the extension 13 until the end of the member 10 engages the edge of a recess in a spring-collar 18 sliding on the extension 4. Further movement depresses the collar against the action of the spring 19 until the member 10 can slide into the recess, whereupon the collar rises and locks the parts in the operative position where the contact 17 engages the contact 5 in connection with the battery terminal 4. By depressing the collar, the parts are released so that the lamp carrier may be swung down to the inoperative position of Fig. 3.
Patent GB-549455-A (GB)
Title: Improvements in and relating to master cylinders for liquid pressure control systems
IPC: F16K1/00
Filed: 1941-05-19
Abstract: 549,455. Hydraulic apparatus ;fluid-pressure brakes. SCHNELL, S. May 19, 1941, No. 6425. [Class 69 (ii)] [Also in Group XXXIV] In a hydraulic system in which slave units such as motors for applying brakes are operated by a master cylinder 3, the cylinder 3 is mounted so as to have a limited sliding movement in the casing of the liquid reservoir 2. In the inoperative position of the piston 7 liquid can pass to the cylinder 3 from the reservoir past a valve 16, 17 and a loosely fitting valve 24 normally pressed on its seat by a light spring 25. On operation of the piston rod 11 to the left the cylinder 3 moves with it owing to the friction between the cylinder and the skirt 9 of the piston 7 and the friction due to liquid pressure on the packing 10 of the piston. The valve member 16 on the cylinder 3 closes on the seat 17 and pressure then builds up the pipe line 20 by the passing of liquid through an aperture 19 and past a spring-controlled valve member 27 which moves off its seat under fluid pressure and thereby permits fluid to pass via a small aperture 28 and via cut-away portions 32 in the periphery. When the pressure on the piston is released the valve member 27 restricts the return flow from the slave units, but the valve member 24 permits easy flow to the cylinder when the valve member 16 opens. Sub-atmospheric pressures are thus prevented in the cylinder 2. The valve 27 may be omitted, in which case the opening of the valve 24 is assisted by injector-like action. In a modification the valve members 24, 27 are connected by a rod so that the closing of one valve automatically opens the other, and vice-versa.
Patent GB-491719-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B1/06
Filed: 1937-03-05
Abstract: 491,719. Sewing-machines. UNION SPECIAL MACHINE CO. March 5, 1937, No. 6520. Convention date, Sept. 19, 1936. [Class 112] A feed-off-.the-arm sewing-machine is provided with means for bringing the margins of fabric sections into upstanding contacting relationship, for laterally folding over both the margins flat upon one of the fabric sections and means for forming a line of seaming stitches through all three fabric thicknesses including a locking thread on the exposed face of the fabric. The general set-up of the machine is as disclosed in Specification 253, 620, [Class 112]. The feeding mechanism is as disclosed in Specification 491,720 and the presser foot is as disclosed in Specification 491,721. Needle mechanism. Three transversely spaced needles 68, 69, 70, Fig. 2, are carried by an arm 66, Fig. 2, pivoted within the worksupporting arm 7. The needles are curved concentrically with the pivot 67 of the arm 66. The arm 66 is swung on its pivot to actuate the needles by a link 71 connected to a bell-crank lever 72 having an arm 75 connected to the main shaft 12 by a pitman 76. Looper mechanism. A pair of loopers 78, 79, Fig. 2, are carried by an arm 80 swinging across the line of feed about a stud 81 carried on an arm 82. The loopers are swung by a pitman 86 connected by a ball joint to a crank on the countershaft 89 driven in unison with the main shaft by mitre gears. Trimming mechanism. A flexible arcuate trimming blade 127 is clamped to the projecting end of the sleeve 99 at the bottom of the head 5, Figs. 2 and 4. The sharp edge of the blade shears against the edge of a ledger blade 128 which overhangs the passage 107 in the presser foot. The blades are maintained in correct cutting relation by the tongue 130 of the blade 127 bearing on the top of the fixed blade 128. The sleeve 99 is oscillated to operate the blade 127 by a ball arm 131 at the top of the sleeve having a short link 132 connected to the looper-operating mechanism. Thread control. Threads for the loopers 78, 79 pass from the supply to usual disc tensioning devices mounted on the machine top, and through suitable guides to a rotary take-up 138, Fig. 4, forming part of the hand-wheel 139. The take up comprises two discs 140, 141 with an eccentrically disposed loop-engaging stud. The threads for the three needles 68, 69, 70 pass through similar tension discs and through suitable guides along the arm 7 to the needles. Operation. The fabric F is rounded upwardly above the rear end of the work arm 7 and the margins M, M<1> brought into upstanding relation. These edges are placed in the presser foot slot and the fabric advanced by the feed dogs to be turned, trimmed and stitched as shown in Figs. 19, 21, 27.
Patent GB-1171572-A (GB)
Title: A Device having Separate Components Secured to a Shaft, Sleeve or Pin
IPC: H02K1/24
Filed: 1968-02-09
Abstract: 1,171,572. Making dynamo-electric rotors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 9 Feb., 1968 [14 Feb., 1967], No. 6523/68. Heading B3A. [Also in Divisions E2 and H2] A rotor comprises individual, laminated polepieces 1 carrying pre-formed coils 3 and having hook-like portions 5 which interlock with a shaft 6 and with each other to form a rigid assembly. To assemble the rotor, the polepieces with the coils in position are slid radially towards each other in the direction of the arrows A until the portions 5 define a hole, preferably of polygonal shape, into which the shaft is then driven.
Patent GB-814003-A (GB)
Title: Supported catalysts
Inventor: LACEY RICHARD NORMAN
IPC: B01J23/58
Filed: 1956-03-02
Abstract: Catalysts suitable for the selective hydrogenation of unsaturated aldehydes are prepared by depositing the oxide and/or hydroxide of a platinum group metal on a solid mildly alkaline supporting material, treating the product with an aqueous alkali metal hydroxide, carbonate or bicarbonate solution, and reducing the oxide to the metal.  The platinum group metals are ruthenium, rhodium, palladium, osmium, iridium and platinum.  Supporting materials mentioned are solid, substantially water-insoluble metal oxides, hydroxides, basic oxides, carbonates and basic carbonates, e.g. alumina, magnesia, titania and chromia; charcoal; silica gel and pumice.  If the support is not intrinsically alkaline (e.g. magnesia) it is rendered mildly alkaline, e.g. by impregnating with a solution of an alkali metal hydroxide, carbonate or bicarbonate and drying.  The metal oxide is deposited by contacting the support with a solution of a platinum group metal compound in an organic solvent.  Solvents mentioned are C1-4 primary and secondary aliphatic alcohols; acetone and methyl ethyl and diethyl ketone; esters containing up to four carbon atoms; 2-ethoxy and 2-butoxy ethanol; dioxan and dihydropyran; and esters of sufficiently high M.W. to offset the hydrophilic character of the glycol group, e.g. hexylene glycol and 2-ethylhexan-1:3-diol.  The solvents preferably contain 1 to 15 vol. per cent of water.  The carrier with the deposited oxide is washed and then treated with dilute alkali solution (e.g. 1 wt. per cent) and may be reduced either prior to or in the course of the hydrogenation reaction in which it is to be used.  In an example magnesia is treated with sodium carbonate and dried, the product then being successively treated with palladous chloride in acetone, washed, drained, treated with 1 per cent sodium carbonate solution, washed and dried.  The product was reduced in the hydrogenation reactor wherein it was to be used.  According to the Provisional Specification similar catalysts may be prepared wherein the platinum group metal compounds are replaced by compounds of other metals, e.g. auric, mercuric and uranyl chlorides and the trichlorides of the rare earth metals.  The organic solvents mentioned therein also include acetals. Specification 813,382 is referred to.
Patent GB-1528722-A (GB)
Title: Apparatus for treating coal
IPC: C10J3/20
Filed: 1977-02-16
Abstract: 1528722 Coal gasification KRAFTWERK UNION AG 16 Feb 1977 [6 March 1976] 06562/77 Heading C5E Apparatus for treating coal comprises a hydrogenation gasifier for the coal followed by a steam gasifier for the coal, the steam gasifier being provided with steam supply means, with oxygen supply means, and with gas outlet means for the gases produced in use, the coal treating apparatus further comprising gas processing means for removing at least hydrogen from the gases produced in the steam gasifier, such means being connected to supply the removed hydrogen to the hydrogenation gasifier for hydrogenation of the coal therein, there being provided between the hydrogenation gasifier and the steam gasifier a pressure air lock which prevents the passage of gases from the steam gasifier into the hydrogenation gasifier but is constructed to allow coal to pass from the hydrogenation gasifier to the steam gasifier, the gas outlet means comprising a gas conduit leading from the steam gasifier to a heat exchanger which is connected in said steam supply means so as to use to provide heat exchange as between the gases and steam respectively supplied to the heat exchanger by the gas conduit and by the steam supply means.
Patent GB-887387-A (GB)
Title: Adhesive sheets
IPC: C09J7/38
Filed: 1958-02-28
Abstract: A release coating composition for a pressure-sensitive adhesive sheet or tape comprises the reaction product of a polyfunctional compound A, the molecules of which are unreactive with each other and consist essentially of an organic group to which is attached a long, straight chain alkyl group of 12 to 24 carbon atoms and at least two functional groups; and a polyfunctional compound B, the molecules of which are unreactive with each other and consist essentially of at least one atom to which are attached at least two functional groups, the functional groups of compound A being reactive with the functional groups of compound B to form polar linkages between the respective nuclei of compound A and compound B, said linkages being ester, ether, amide, ureido, urethane and/or sulphonamido linkages. Examples describe the preparation of release agents by reacting tolylene diisocyanate (in toluene \sB acetone, with a triethylamine catalyst) with (1) and (2) 5-n-pentadecyl resorcinol; (3) N-methyl-N-(2,3,4,5,6-pentahydroxyhexyl)-N1-octadecyl urea; (4) an alkyl ether R-O-(CH2)n-NH2 of M.W. 310 to 330; (4) alpha-sulphostearic acid; (6) kojyl palmitate; (7) mono- and diglycerides of fatty acids; (9) octadecylamine; (10) N,N-diethanol -N1-octadecyl urea; (11) sorbitan palmitate; (12) sorbitan mono-oleate; (13) polyoxyethylene sorbitan monostearate; (16) glyceryl monostearate.  Other release agents are obtained from (8 and 15) p,p1-diisocyanato-diphenylmethane with N,N1-ethylene-bis-stearamide and 5-n-pentadecyl resorcinol; (14) 5-n-pentadecyl resorcinol and p,p1,p11-triisocyanato-triphenylmethane; (20) 3-n-pentadecyl phenol and formaldehyde in alkaline aqueous propanol; (21) p-aminophenol, octadecyl isocyanate and formaldehyde in aqueous alkalineisopropanol; (23) 5-n-pentadecyl resorcinol and tetraisopropyl titanate in toluene.  Water, ammonia, imines, alcohol, phenol, urea, melamine, hydrogen sulphide, mercaptan, thionic or thioic acid, thiothiolic acid, 2,4-diketo-heneicosane, N-monostearoyl-melamine, 3-n-octadecyl glutardi-aldehyde and compounds with activated methylene groups are other specified reactants.
Patent GB-1421627-A (GB)
Title: Bag making machines
IPC: B31B23/00
Filed: 1973-02-12
Abstract: 1421627 Bag making machines; seaming non-metallic sheet material FMC CORP 12 Feb 1973 [30 March 1972] 6751/73 Headings B5D and B5K A thermoplastic bag making machine comprises a pair of draw rolls 74 intermittently rotated to feed a folded web to a seal roll 80 and a reciprocable sealing bar (78), and a common drive mechanism which, through an oscillating shaft 162, clutch 166 and brake 176, rotates the draw rolls, and through a Geneva drive mechanism 182 rotates the seal roll. The machine apart from the Geneva drive is generally the same as in Specification 1,279,441. The seal roll is arranged to start rotating before the draw rolls. The sealing bar, which is reciprocated by push rods operated by cams 82, seals and cuts the folded web into bags.
Patent GB-1529669-A (GB)
Title: Vacuum switch and electro-magnetic coil assembly therefor
IPC: H01H33/66
Filed: 1977-02-17
Abstract: 1529669 Vacuum switch HAZEMEIJER BV 17 Feb 1977 [19 Feb 1976] 06753/77 Heading H1N A vacuum switch 15 having the envelope surrounded by a series-connected electromagnet coil 3 is provided with coaxial connections to the coil to avoid field disturbance by connecting one end of the coil to a ring 1 and -thence by a conducting cylindrical envelope 2 to a discshaped base 12 into which a hollow terminal stud 14 is fitted, and connecting the other end of the coil to a ring 4 connected to a conducting disc 11 into which another terminal stud 10 is fitted, the latter being screwed on to one of the switch contacts 16, 18. Thus the switch per se can be used with or without the electromagnet assembly. Insulation 5, 6 and 9 is provided and the coil may be a single turn of three parallel strips 3<SP>1</SP>, 3<SP>11</SP> and 3<SP>111</SP>.
Patent GB-167208-A (GB)
Title: An improved guard for motor vehicles
IPC: B60R21/34
Filed: 1920-12-31
Abstract: 167,208. Guppy, A. E. Dec. 31, 1920. Wheel-guards and obstruction-removers.- Relates to safety-guards for motor and like vehicles of the type which are adapted to move downwards and backwards when struck by an obstacle. The guard comprises a main horizontal platform 1 combined with vertical side frames 3 which are connected at the rear by rods 12, and the front edge of the platform is supported by rigid side-irons 9 pivoted at 11 to the platform and at 10 to the chassis or axle 17, while the near edge of the platform is supported by springs 18 located between fixed stops 19 on rods 14 pivoted to the chassis at 15 and the lower set of sleeves 13 mounted on the transverse rods 12 and slidable on the suspended rods 14. The platform 1 may be provided with slots 22 embracing the rods 14 and with side angle-irons 2 having slots 4 in which the side frames 3 engage so that the platform can be adjusted forwards and backwards. At their front edges the side frames 3 have vertical rollers 8 and the platform 1 an horizontal roller 7 which may be rotated in the opposite direction to the road wheels. Auxiliary platforms 24 may fill up any gaps existing between the platform 1 and side frames, and are provided with rollers 25 along their front edges. The rear edge of the platform is also provided with wheels 20 adapted to contact with the road surface and to relieve the springs 18 when the guard is depressed.
Patent GB-924679-A (GB)
Title: Automatic height control for oxygen jet cutter
Inventor: SEMPER KENNETH DAVID SEYMOUR
IPC: B23K7/10
Filed: 1960-02-26
Abstract: 924,679. Control of A.C. motors. HAN. COCK & CO. (ENGINEERS) Ltd. Feb. 10, 1961 [Feb. 26, 1960], No. 6819/60. Drawings to Specification. Class 38 (3). [Also in Groups XXII and XXXV] A three-phase motor has one phase winding fed from the line conductor of a single phase supply, a second phase winding fed from the line conductor through a capacitor and a third phase winding fed through a resistor from the neutral conductor of the supply. The capacitor is permanently connected between the said one and the second phase windings, and a relay in the circuit operates to connect the line conductor directly either to the one phase winding or to the second phase winding to cause the motor to run in one direction or the other.
Patent GB-648925-A (GB)
Title: Improvements in or relating to discharge-tube oscillator circuits
IPC: H03B5/10
Filed: 1948-03-05
Abstract: 648,925. Converting. PHILIPS ELECTRICAL, Ltd. March 5, 1948, No. 6860. [Class 38 (ii)] [Also in Group XL (c)] In an oscillator of the type used for producing high direct voltages, as described in Proc. I.R.E., April, 1943, page 158, comprising a valve with an over-coupled band-pass filter 4, 5, in its output-circuit and with back-coupling to the grid from the secondary 5, the feed-back network 16, 17 is arranged to give a phase-shift of the order of 90 degrees. A grid-leak and condenser 18, 19 giving negligible phase-shift are also included. In this manner the circuit is caused to oscillate at the centre frequency of the filter and the output impedance is reduced, thereby improving the regulation. In an alternative embodiment, Fig. 1 (not shown), the grid leak and condenser are omitted and the phase-shift is opposite in sign, being produced by means of a condenser shunting the resistance 17 and a further resistance in series with condenser 16 which functions solely as a blocking condenser.
Patent GB-986915-A (GB)
Title: Improvements in and relating to evacuating arrangements employing a roots pump
IPC: H02P29/40
Filed: 1963-02-21
Abstract: 986,915. Rotary pumps. MICAFIL A.G. Feb. 21, 1963 [March 1, 1962], No. 7005/63. Heading F1F. [Also in Divisions G3 and H2] A D.C. motor GM drives a Roots pump RP and is energised from three-phase source RST through thyratrons Th associated with firing-angle control apparatus E. The armature current of the motor is limited by comparing the voltage-drop across series resistor R1 with a reference voltage, the resultant of this comparison being adapted to change the phase position of the firing impulses in the appropriate sense. Since the motor is shuntexcited, the pump does not exceed a desired speed under no-load conditions. The system provides automatic regulation of the driving torque applied to the pump when the intake pressure or difference of pressure between intake and exhaust is below a level at which the pump can safely be operated with full torque.