baber/WOPTO huggingface dataset:
Patent GB-257923-A (GB)
Title: Improvements in type bodies for typewriting machines and in apparatus for fitting the type bodies on to the type levers
IPC: B41J1/00
Filed: 1926-08-27
Abstract: 257,923. Meumann, W. Sept. 1, 1925, [Convention date]. Types. - The typeheads T, Fig. 1, of type-levers are provided between the types a with depressions H for accurately positioning the typeheads at the printing point before they are secured to the typelevers. The type-heads preferably co-operate with a positioning-device consisting of a stationary member C, Fig. 2, provided with a spring pin G for engaging the depression H, a spring-urged lever I for holding the type-head, and a type-abutment B having two or more curved faces of the same radius as the platen and struck from the centres occupied by the platen when in the normal and shift positions. The member C replaces the platen and is adjustably secured to a bracket D on the framework J, a spindle A attached to the member resting in the carriage. A type-head is positioned on the member by the abutment B and pin G and is retained by the forked end of the lever I, the corresponding type-lever F being then swung upwards into engagement with the cheeks L of the type-head and being soldered thereto. The pin G may have a point for engaging the depression or may have a depression engaging a point formed in the depression in the type-head. The Specification as open to inspection under Sect. 91 (3) (a) comprises the following subjectmatter which does not appear in the Specification as accepted : The above-described lever I may be replaced by a lever I, Figs. 5 and 6 (Cancelled), having mounted in the foot 1 a member 2 which is formed with a slot 3 for engaging the cheeks L of the type-head and is provided with semicircular trunnions 4 engaging semi-circular recesses 5 in the foot, the axis of the trunnions passing through the point of the pin G. The member 2 can rock to adjust itself to the typehead and can move laterally to compensate for inequalities in the position of the cheeks L; moreover, the member can be readily replaced by others suitable for different styles of type-heads. The lever I has a slot 7 engaging a pin, and after being depressed to engage the type-head is pressed into contact therewith by tightening a screw.
Patent GB-969684-A (GB)
Title: Rolling apparatus for small sections and wires
IPC: B21B1/18
Filed: 1962-06-01
Abstract: 969,684. Rolling. F. MOELLER, and K. NEUMANN, [trading as VERWALTUNGSGESELLSCHAFT MOELLER & NEUMANN o.H.G.]. June 1, 1962 [June 9, 1961], No. 21226/62. Heading B3M. Rolling apparatus for small sections and wires, having vertical and horizontal roll frames 4-11 arranged alternately in the sequence of travel of the rolled product and guides between the frames permitting free loop formation, has the frames arranged in at least two parallel lines 1 and 2 so that the rolled product traverses groups of frames on adjacent lines successively, the rolled product, after passing the last frame of one group, being fed to a frame of the next group which is in the same line. Loop beds 19-23 are provided while 17 and 18 show run out loop beds for the two passes used. Fig. 2 shows how the frames may be divided into two groups one pass line 24 using frames 4-7 while a second pass line 25 uses frames 8-11. An arrangement using four parallel lines is described, the frames again being divisible into two groups.
Patent GB-347970-A (GB)
Title: Improvements in or relating to variable friction gearing
IPC: F16H15/22
Filed: 1930-07-14
Abstract: 347,970. Variable-speed friction gearing. ROBERTSON, J. H., 1, Albemarle Street, Piccadilly, London. July 14, 1930, No. 21272. [Classes 80 (i) and 80 (ii).] Variable-speed friction gearing of the kind in which a driven or intermediate wheel p is moved eccentrically with respect to a driving disc or cone k comprises means for cooling the wheel p by an internal current of air. As described in Specification 325,466, [Class 80 (i), Gearing, Belt &c.], the disc k is cooled by an impeller m, Fig. 1, which draws air in through a central opening n and drives it radiallv out through apertures k<3>. The impeller m, which is held firmly between the cone k and flywheel l, comprises two alternating sets of ribs or vanes o, 0<SP>1> extending between an annular web m<1> and a central boss m<z>, the latter forming a deflector for the inward air current. The vanes o<1> extend all the way radially with their outer ends swept rearwardly, but the vanes o are shorter. The wheel p may be secured to shaft v which is connected by gearing in a movable radial arm y to ultimately driven fixed shaft y<1>. The wheel p is shown as loose and carrying a ring x of friction material engaging a driven web x<1> secured to shaft v. A ring q engaging the disc k is secured inside a flange p<4> on wheel p. The wheel p, Fig. 2, comprises vaneforming spokes p<1>, Fig. 3, connecting the annular web p<3> to a central hub p<2>. The central opening r of web p3 facing disc k provides an inlet for air which is impelled outwards and escapes through apertures z between the curved ends p<6> of the spokes p<1> and spacing blocks p<5> held between wheel p and ring x. The wheel p is closed on its other side by a plate s, Fig. 1, and is supported on a ball bearing u on the end of shaft v.
Patent GB-168592-A (GB)
Title: Improvements in and connected with non ferrous metal articles having an electricallyinsulating and mechanically adhesive coating
IPC: C23C22/48
Filed: 1921-08-11
Abstract: 168,592. Krupp Akt.-Ges., F. Sept. 3, 1920, [Convention date]. Coating.-Non-ferrous metallic articles are insulated by an adherent coating consisting of oxides of manganese, which may be combined with other metallic oxides. The articles are cleaned in dilute -caustic solution and then immersed in an acid pickle, or a similar bath such as chloride of iron. The articles are then immersed in a one-per-cent solution of potassium permanganate heated to 80-100‹ Celsius. The bath is acidified, and salts of iron or lead, or silver nitrate, may be added. The articles are immersed for five minutes in constant motion, and after washing and drying may be provided with a protective coating.
Patent GB-358157-A (GB)
Title: Improvements in the manufacture and production of explosives and blasting charges
IPC: C06B25/34
Filed: 1930-07-15
Abstract: Dihydroxypropylamine, dipropanolamine, n-butylmonoethanolamine, and other saturated aliphatic amines containing one or more hydroxyl groups and N-alkyl derivatives of said amines are nitrated for use as or in explosives, for example as described in Specification 357,581, by treating the amines at a temperature of from 0-10 DEG  C. with an excess of a mixture of concentrated nitric acid and sulphuric acid, the products being recovered by pouring the resulting solutions into a mixture of ice and water.  The nitrates separate out as oils or crystals; and in the latter case they may be purified by recrystallization from water, ethyl alcohol, or mixtures thereof. These nitrates may be used in conjunction with the nitrates of monoethanolamine and diethanolamine.
Patent GB-833175-A (GB)
Title: Preparation of aromatic carboxylic acids
IPC: C07C51/265
Filed: 1958-07-04
Abstract: A process for preparing an aromatic carboxylic acid comprises providing a solution of a methylaromatic compound in a lower fatty acid having 2 to 4 carbon atoms, said methyl aromatic compound being present in an amount of from 2 to 20% by weight of said fatty acid, said solution initially containing 1% to about 9% by weight of water based on the weight of the solution and from 1% to 75% by weight based on the weight of said fatty acid of a ketone having at least one methyl group attached to the carbon of the carbonyl group and minor proportions of a cobalt salt of a lower fatty acid containing 2 to 4 carbon atoms, and contacting said solution with an oxygen-containing gas at a partial pressure of oxygen of about 100 to 10,000 pound per square inch at a temperature of 125 DEG  C. to about 145 DEG  C., and continuing the reaction until 30% to about 95% of the methyl-aromatic compound has been oxidized.  Starting materials mentioned include toluene, m- and p-xylenes.  Mixtures of starting materials may be employed, e.g. mixed xylenes.  Inert nuclear substituents which may be present in the starting materials are chlorine, bromine, fluorine, nitro, carboxyl, alkoxy, aryloxy and tertiary alkyl.  Typical conversions mentioned include the oxidation of toluene to benzoic acid, m-xylene or m-toluic acid to isophthalic acid, p-xylene or p-toluic acid to terephthalic acid, 1,4-dimethyl-2-chlorbenzene to chlorterephthalic acid and 1,4-dimethyl-2-nitrobenzene to nitroterephthalic acid.  Ketones mentioned include methyl ethyl-, methyl n-propyl- and diethyl ketones, 2,4-pentanedione and 2,5-hexanedione.  The process may be carried out by continuing the reaction until from 30 to about 95% of the methyl-aromatic compound has been oxidized, then subjecting the solution to distillation to recover the ketone, separating insoluble product from the residual solution and combining the recovered residual solution and ketone with a methyl-aromatic compound for recycling in the oxidation reaction.  Examples are furnished.
Patent GB-1107892-A (GB)
Title: Improvements in or relating to controls for reversible variable flow pumps
IPC: F04B1/32
Filed: 1965-05-20
Abstract: 1,107,892. Fluid-pressure servomotor systems. T. BUDZICH. May 20, 1965 [May 21, 1964J, No.21516/65. Addition to 1,102,871. Heading G3P. [Also in Division F1] A flow reversible, variable displacement pump is provided with two identical control systems for varying the displacement of the pump in accordance with the output pressure to maintain the latter constant at a preselected value, and means to render one only of the systems operable according to the sense in which the pump is working. As shown in Fig.2, a swash plate 32 is displaceable by rocker arm 72 or 72a, When port 40 is required to be the outlet port a solenoid-actuated valve 174 (Fig.3) connects the output of a gear pump 59 driven by the main pump shaft 50 with a chamber 105 to cause a piston 102 to compress a spring 108 to urge rocker 72 to a position corresponding to maximum displacement of the swash plate. A further solenoid-actuated valve 174a Fig.3A (not shown) connects a chamber (105a) to exhaust to allow a piston (102a) to move under the action of a spring (108a) to remove loading from rocker (72a). The pressure at port 40 will rise and at a value predetermined by a spring 154 will lift a pilot valve 130 to connect port 40 to a port 123 to allow pressure fluid to act on a piston 116 to reduce the displacement of the swash plate. When the pilot valve is lifted it also allows fluid to pass to chamber 124 housing spring 154 where the fluid acts to cause closure of the pilot valve. A recess 142 in the pilot valve connects chamber 124 and port 123 to an exhaust path 141 if the output pressure falls below the required level. When it is required to make port 42 the outlet port, valve 174 is actuated to unload piston 102 and valve (174a) is actuated to load piston (102a) and thereby urge rocker (72a) to a position corresponding to the opposite maximum displacement of the swash plate. The pressure at port 42 is then controlled by means of pilot valve (130a) and piston (116a) in a manner identical to that described above. By unloading both pistons 102, 102a, the swash plate assumes a central position under the action of springs 120, 120a and the pump plunger springs 36.
Patent GB-341492-A (GB)
Title: Improvements in and relating to lamps
IPC: F21V21/26
Filed: 1929-07-12
Abstract: 341,492. Projector &c. lamps. DENNYS, A. V. L., 59, Blenheim Crescent, Ladbroke Grove, London. July 12, 1929, No. 21517. [Classes 75 (ii), 75 (iii), and 75 (iv).] Electric lamp lanterns ; projectors ; pendants ; stands ; reflectors.-A lamp casing e or shade element is open at one end and carries at the other end one or more lamp sockets, and is directly mounted for pivotal adjustment on an axis transverse to the casing between connected side arms c of a supporting member, the part b connecting the side arms being pivotally mounted directly on a support d on an axis transverse to the first, there being compressible means, such as rubber or fibre washers, between the shade or casing and the side arms for frictional maintenance in adjusted position. Compressible means are also provided between the part b and the support d. In the form shown in Fig. 3, the casing e comprises three sections, the section 1 which carries the lamp bulb, the section 2 on which the trunnions k, l are mounted, and the section 3 mounted to slide within the section 2. In front of the bulb a magic lantern lens system is carried by a hollow frustoconical element 8 having spring blades 9 engaging the inside of the section 1, and is adjustable therein. The distance between the lenses may also be adjusted.. A lantern slide 16 or the object lens 11 may bear a legend. In a modification, the casing comprises two sections only, one of which telescopes within the other. In the modification of Fig. 5, for use by surgeons or dentists, the shade element 18 has an aperture 19 and a rearwardly-facing 45‹ mirror 20 which projects a beam of light through a convex lens 21 so as to illuminate a spot. In the form shown in Fig. 7, the casing comprises two boxes 30, 31, the box 30 carrying four lamp sockets which project through apertures in the back of the box 31, which carries dome-shaped reflectors. The forward portion 33 of each side of the box 31 is spring hinged so as to be turned back for the insertion of coloured screens between ribs in the upper and lower walls. A dome-covered aperture and a series of apertures, screened by a pair of screens, along each side of the top and bottom walls, allow for ventilation. The casing is pivotally mounted between arms c as before, the part connecting them being provided with a circular plate 25 bearing on a plate 29 carried by a stem 26 which is adjustable in the tubular standard d, the stem 26 extending through both bearing plates. In a form for a standard or desk lamp, the shade element is carried by a ring member, within which the lamp socket is axially secured, and which is pivotally mounted as before. The reflecting surfaces of the shades may be prepared by first coating with a plastic fire clay cement, such as is known under the Registered Trade Mark " Purimachos." When dry, a coating of asbestos fireproof paint is applied.
Patent GB-127518-A (GB)
Title: Improvements in the Valve Gear of Internal Combustion Engines.
Inventor: CUMMINGS FRANCIS
IPC: F01L1/26
Filed: 1918-12-30
Abstract: 127,518. Cummings, F. Dec. 30, 1918. Valve-gear.-A valve-lever 1, particularly suitable for use with an overhead cam-shaft, is formed with a part-spherical portion 9 which is supported by part-spherical bearing-surfaces on the ends of sleeves 8 carried in brackets 7. The lever is also pivoted on a hollow spindle 10 with clearance 11 for lubricating, and oil is led to the bearing-surfaces through the hollow spindle 10 and radial passages 13. Ball bearings may be provided between the sleeves 8 and the spherical portion of the valve-lever, and the ends of the sleeves may then be conical. In a multicylinder engine, the hollow spindle 10 may extend across the cylinder heads and lead oil to all the valvelever bearings, or the hollow sleeves 8 may be connected by tubular members, forming, with the sleeves and with central passages in the valvelevers, a continuous passage for the supply of lubricating-oil.
Patent GB-460891-A (GB)
Title: Drying or conditioning apparatus
IPC: F26B21/02
Filed: 1935-07-31
Abstract: 460,891. Tea withering apparatus. BROOKE BOND & CO., Ltd. (Walker, F.) July 31,1935, No. 21758. [Class 34 (ii)] A tea-withering installation comprises a main withering loft having a separate withering chamber therein through which, in respect of the feeding or discharge of the tea leaf to or from the withering loft and the separate compartment, the tea leaf moves in a direction transverse to the direction of movement of the tea leaf through the main loft, a unidirectional fan or like device being disposed in the roof of the loft above the compartment so as to deliver drying medium thereto. There may be several such compartments each with a fan. In the construction shown, a tea-withering loft is divided into transverse compartments 1 adapted to receive withering tats 2, and each compartment is provided with a fan 3 which is centrally disposed within the roof of the loft and may have a heating unit 5 associated therewith. The drying air from each fan passes down a vertical trunk 6 and then to the left or right depending upon the position of valves 11a, 11b. In the position shown, the valve 11a uncovers an opening 8 leading from the vertical trunk 6 to the passage 7a, and closes an opening leading from the passage 7a to the roof. The valve 11b uncovers the opening 9 leading from the passage 7b to the roof, and closes the opening between the trunk 6 and the passage 7b. The drying air flows in the direction indicated by the arrows, this direction being reversed when the positions of the valves are changed. Passageways 12, 12a extend longitudinally of the withering loft for the conveyance of the tats to and from the compartments.
Patent GB-206595-A (GB)
Title: Improvements in ironing tables
IPC: D06F81/02
Filed: 1922-08-10
Abstract: 206,595. Dehn, F. B., (Everett Manufacturing Co., Ltd.). Aug. 10, 1922. Ironing-tables.-A collapsable ironing- table is supported by frames 16, 19 pivoted to the table top at 15 and connected together by a telescopic tension member 24. A locking bar 21, attached to the table tap by a chain 22 and pivoted to frame 19, engages over a cross-bar 18 and bears against an abutment 13 to lock the table in condition for use. The sleeve board 11 is slidably mounted on the table top, and when removed therefrom may be secured to the bar 21 by a loop 27 and turn-button.
Patent GB-597768-A (GB)
Title: Improvements in screw-cutting die head operating means
IPC: B23G5/10
Filed: 1945-08-24
Abstract: 597,768. Screwing die-heads. FAIRWEATHER, H. G. C. (National Acme Co.). Aug. 24, 1945, No. 21820. [Class 83 (iii)] In a die-head of the type comprising a body 3, carrying chasers 6, mounted on a shank 2 and operated by sliding an external sleeve 13 over the body, means is provided for sliding the sleeve consisting of a spring-loaded plunger 16 having an eccentric pin 17 engaging a peripheral slot 9 in the body. Rotation of the plunger in either direction shifts the sleeve axially over the body to open or close the chasers. A second peripheral slot 8 in the body may be engaged by the pin, by lifting the plunger 16, and thus allowing further relative movement of the sleeve and enabling the chasers to be removed. Extreme upward movement of the plungerallows the sleeve and body to be separated for dismantling the diehead. Specification 597,753 is referred to.
Patent GB-1259793-A (GB)
Title: Electrical control equipment for a heating system
IPC: F23N5/08
Filed: 1969-04-30
Abstract: 1,259,793. Controlling burners. DANFOSS A.S. 30 April, 1969 [2 May, 1968], No. 21968/69. Heading F4T. In an oil-burner control system including a motor 5 controlled by a relay M having contacts M1 the flame is monitored by a photo-resistor 9 the current through which is amplified by a transistor Tr and energizes a relay F having contacts F1, F2, the collector-emitter path of the transistor being connected in parallel with the relay F and a resistor R4 is connected on the collector side in the common lead to the parallel connection. Upon a call for heat from a thermostat KT relay F is energized to close contacts F1, F2 and supply current ignition to transformer 8 and motor relay M. The presence of flame detected by photoresistor 9 renders the transistor Tr conductive and relay F releases to interrupt the ignition and open the contact F2 thus switching in resistor R1 to the motor relay circuit to reduce the current to a value between starting and holding currents. Flame failure during start-up or during operation causes a heavier current through the heater of safety switch V to trip contact V1 after a predetermined period.
Patent GB-479773-A (GB)
Title: Improvements in or relating to non-detonating blasting explosives
IPC: C06B23/04
Filed: 1936-08-10
Abstract: 479,773. Explosives. TYRE, A. T., and IMPERIAL CHEMICAL INDUSTRIES. Ltd. Aug. 10, 1936, No. 22051. [Class 9 (ii)] A non-detonating blasting explosive composition comprises an alkali metal hypophosphite, or preferably ammonium hypophosphite, and a mixture of an ammonium salt and an alkali metal nitrate, said mixture being adapted to form by metathesis a mixture of ammonium nitrate and a cooling salt. If desired, the composition may contain an initial proportion of either or both of the ammonium nitrate and the cooling salt in the free state. The proportion of ammonium hypophosphite in the total composition preferably does not exceed one-half molar proportion. An example contains 101 parts of potassium nitrate, 53À5 parts ammonium chloride, 41À5 parts ammonium hypophosphite and 20 parts ammonium nitrate. All these are in the form of crystalline powders which are ground together in a mill and the mixture then pressed and granulated. The mixture is loaded direct into the borehole and tamped in the usual manner and may be ignited either by a safety igniter or by a blasting-detonator.
Patent GB-683998-A (GB)
Title: Improvements in or relating to constant load-voltage electric circuits
IPC: H03H2/00
Filed: 1951-09-21
Abstract: 683,998. Dielectric heating. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Sept. 21, 1951 [Oct. 27, 1950], No. 22151/51. Class 39(iii) [Also in Groups XXXV and XL(c)] Apparatus for supplying constant voltage across a varying load (e.g. a high frequency dielectric heater 24) comprises a radio-frequency source 10 coupled to the load 24 through an impedance-inverting quarter-wave line 14, the load being tuned away from resonance by a variable shunt reactance 28 of opposite sign to the load, and the source being coupled to the line through an impedance (e.g. the transformer 12 and condenser 16) which is high compared with the load impedance as seen from the input end of the line. As shown, the load 24 is capacitive, and the reactance 28 is inductive, the reactance 28 being adjusted so that the circuit 24, 28 remains on the inductive side of resonance throughout the heating process, and is of high impedance. This impedance is reflected as a low impedance at the input end of the line 14 and its variations have little effect on the current fed to the line through the condenser 16, which forms, together with the output coil 18 of the transformer 12, an off-tune series combination of high impedance. Current at the input end of the line thus remains substantially constant, and produces constant voltage at the load end of the line. -
Patent GB-707602-A (GB)
Title: Manufacture of new vat dyestuffs containing sulphur
IPC: C09B49/12
Filed: 1951-09-21
Abstract: New vat dyes containing sulphur are made by treating with aluminium chloride and a halide of sulphur, such as sulphur chloride, or a halogen compound of an acid of sulphur such as a thionyl or sulphuryl halide at elevated temperatures anthrimides having linked to the nitrogen atom an anthraquinonyl radical which may be substituted and a radical of a ring system consisting of six condensed benzene nuclei which may be condensed with rings of five carbon atoms.  The melting point of the mixture may be lowered by addition of alkali chloride or bisulphite or sulphurous acid.  In examples, the following are added to a melt of aluminium chloride, rock salt, and thionyl or sulphuryl chloride; (1) the anthrimide prepared from 1- or 2-aminoanthraquinone or 1-amino-4- or 5-benzoylamino - anthraquinone or 3\sv-4\sv-phthaloyl-6-amino-acridone and the dichloracedianthrone from 1-chloranthrone; (2) the anthrimide from dibromoanthanthrone and 1-aminoanthraquinone.  Specifications 286,669, 288,291, [both in Class 2(iii)], 369,765, 410,552, and 519,123 are referred to.