baber/WOPTO huggingface dataset:
Patent GB-731407-A (GB)
Title: Improvements in single-powder photographic developers
IPC: G03C5/26
Filed: 1953-06-26
Abstract: 731,407. Photographic developing compositions. KODAK, Ltd. June 26, 1953 [June 26, 1952], No. 17749/53. Drawings to Specification. Class 98 (2). A single-powder photographic developing composition containing an organic silver halide developing agent and a photographically compatible basic ingredient consisting of an alkali metal sulphite or carbonate, is stabilized by packaging the composition in a closed container having on its interior surface a coating of fused boric anhydride. The container may be of glass, metal, or plastic, or of any other substance which will withstand the heat necessary to fuse the boric anhydride on to the inner wall thereof. Boric anhydride may be dusted on to the inner surfaces of the container heated above the fusing temperature of the boric anhydride, or the boric anhydride may be first dusted on and the container then heated, or molten boric anhydride may be flowed on to the surfaces to be coated. In example 1, boric anhydride is sprinkled over the interior surface of a metal can heated to 577‹ C., the can is cooled, a singlepowder developing composition comprising mono-methyl-p-aminophenol sulphate, sodium sulphite, hydroquinone, sodium carbonate, and potassium bromide, is placed therein, and the can is sealed. In examples 2 and 3, glass bottles are treated similarly, the developing compositions comprising respectively sodium sulphite, sodium carbonate, potassium bromide, and pyrogallol, and p-hydroxyphenylglycine, sodium sulphite, sodium carbonate, and potassium bromide. The bottles are sealed after filling. Specifications 585,366 and 698,311 are referred to.
Patent GB-479414-A (GB)
Title: Improvements in or relating to rock drill feeding devices
IPC: E21B15/00
Filed: 1937-06-25
Abstract: 479,414. Rock-drills. MOSS, E. W. (Ingersoll-Rand Co.) June 25, 1937, No. 17772. [Class 124] The rock-drill 26 is fed to the work by the rotary air motor 36 through the chain 30. Transmission of blows from the rook-drill to the motor is prevented by allowing the worm wheel 38 to slide freely on the motor spindle, its end thrust being supported on bearings.
Patent GB-1480023-A (GB)
Title: Battery voltage indicator
IPC: G01R19/165
Filed: 1975-04-29
Abstract: 1480023 Monitoring battery voltage FLIGHT SYSTEMS Inc 29 April 1975 [24 Dec 1974] 17808/75 Heading G1U A battery voltage monitor indicates whether its input voltage lies above, between or below two predetermined voltage levels and the input voltage is selected to be either the actual battery voltage, or a signal having a predetermined rate of decay for use as a self-test signal for the apparatus. For normal monitoring, switch S1 is as shown and the battery voltage is applied via a potentiometer to capacitor C1, which acts as a memory if the battery is disconnected, and to the gate of IGFET 26. The IGFET source current is thus determined by the battery voltage and thus the input voltages, 36, 38 to comparators 30, 28 are also so determined. The arrangement is such that as the battery voltage falls owing to use, comparator 28 switches its output 40 from 'low' to 'high' at a first upper level indicating that recharging is advisable but not necessary. As the battery voltage falls further, comparator 30 also switches from 'low' to 'high' output at a second lower level indicating that recharging must be carried out. Logic 16 processes the comparator outputs to provide a 'high' signal at terminal 62 and 'low' at terminal 56 indicating a satisfactory battery voltage or a 'high' signal at terminal 56 and 'low' at 62 when the battery voltage is between the switching levels. These signals selectively energize transistors Ql, Q2 which thus energize the respective lamps, or audible alarms, 64, 66. If the battery voltage is below the lower level, neither transistor is energized and diodes D2, D3 are reversed biased, allowing transistor Q3 to turn on, energizing the third lamp 68. At this time, diac 72 becomes reverse biased, turning off SCR 74 which releases a relay operating a switch to de-energize the battery load, e.g. an hydraulic pump in a fork-lift truck. SCR 74 cannot now be further energized until the battery is replaced. In the self-test mode, switch S1 is changed over connecting the memory capacitor C1 to ground via resistor R22. The capacitor therefore discharges slowly, and the lamps 64-68 should sequentially indicate, as also should the relay controlled by SCR 74. In a modified embodiment Figs. 3A, 3B (not shown), the self-test input signal is derived from a Zener diode and resistor chain across the battery such that the three lamps may be energized even if the battery voltage itself is below the lower level. Also, if the mode switch S1 is not returned to its monitor position after selftesting two lamps are caused to flash alternately as a warning.
Patent GB-837035-A (GB)
Title: New monoazo dyestuffs containing dihalogenotriazinyl groups
Inventor: STEPHEN WILLIAM ELLIOT
IPC: C09B62/085
Filed: 1957-06-05
Abstract: The invention comprises monoazo dyes of formula <FORM:0837035/IV(c)/1> wherein X is a halogen atom, the nucleus A may be substituted other than with hydroxyl, amino or monoalkylamino and B is a sulphonated naphthol nucleus wherein the hydroxy group is ortho to -N = N-.  The naphthol nucleus may be further substituted by halogen atoms, or hydroxy, alkoxy or amino groups or substituted amino groups such as acylamino, halotriazinylamino and alkyl- and aryl-amino.  The nucleus A may be substituted by halogen atoms or alkyl, alkoxy, nitro, carboxylic and sulphonic acid groups.  They are prepared by diazotizing the condensation product from at least one mol. of a cyanuric halide and 1 mol. of a suitable phenylenediamine and coupling with a naphthol sulphonic acid or by condensing an aminoazo compound of formula <FORM:0837035/IV(c)/2> prepared by known methods, with at least one mol. of a cyanuric halide.  Many suitable components are specified.  The dyestuffs may be applied to cellulosic materials by the process of Specification 797,946 and give orange, red, violet or blue shades. In examples: (1) the condensation product from cyanuric chloride (1 mol.) and 1 : 3-phenylenediamine-4-sulphonic acid (1 mol.) is diazotized and coupled with 1-acetylamino - 8 - naphthol - 3 : 6 - disulphonic acid; (2) the monoazo dye 3-aminoacetanilide-4 - sulphonic acid --> 1 - amino - 8 - naphthol-3 : 6-disulphonic acid is hydrolysed with aqueous hydrochloric acid and the product condensed with cyanuric chloride; (3) the monoazo dye 4-nitroaniline --> 1 : 8-dihydroxy-naphthalene-3 : 6-disulphonic acid is reduced with sodium sulphide to the aminoazo compound which is condensed with cyanuric chloride.  Many similar dyestuffs are specified.  Specification 221,843 also is referred to.
Patent GB-305119-A (GB)
Title: Improvements in or relating to hose couplings
IPC: F16L33/24
Filed: 1928-06-21
Abstract: 305,119. Adolf, J. Jan. 31, 1928, [Convention date]. Joints with longitudinal pressure and with yielding outer part compressed. - The adjacent ends i, k of two hose pipes a, bare enlarged by the insertion o f conical nipples c, d and are surrounded by external flanged rings f, g adapted to bear against the said enlargements and to be drawn together by a coupling nut h. The nipples c, d are provided exteriorly with a deep thread having a sharp edge adapted to cut into the hose and have an internal diameter equal to that of the hose, while the outer ends thereof are provided with holes e for engagement with a screwing key. The ends of the hose are arranged to project slightly beyond the conical nipples so as to press against each other after coupling and secure fluid-tightness. Specification 12599/05 is referred to.
Patent GB-601220-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/258
Filed: 1944-09-21
Abstract: 601,220. Condensers. COURSEY, P. R., DUBILIER CONDENSER CO. (1925), Ltd., and STEATITE & PORCELAIN PRODUCTS, Ltd. Sept. 21, 1944, No. 18022. [Class 37] A condenser system as described in Specification 601,109 wherein the di-electrics are of the kind described in Specification 574,577, comprises tubular di-electrics 1, 2 of differing permittivity/temperature characteristics assembled end to end with internal electrodes 3, 4, seriesconnected by soldering, in the example, on to a conducting member 7, and external electrodes 5, 6 with lead-out wires 11, 12 from end caps 9, 10 connected thereto. The condensers may be cup-shaped by forming the di-electrics 1, 2 and electrodes 3, 4, 5, 6 with closed outer ends and the whole encased in a material, such as varnish or glaze, impervious to water. If required, a plurality of such series-connected condensers may be connected in parallel.
Patent GB-384346-A (GB)
Title: Improvements in or relating to methods of synchronisation in television and like syst
IPC: H04N5/04
Filed: 1931-06-22
Abstract: 384,346. Motors. JACOMB, W. W. and BAIRD TELEVISION, Ltd., 133, Long Acre, London. June 22, 1931, No. 18071. [Class 35.] Rotary machines ; driving arrangements.- In a television or like receiving system of the kind in which an electric motor driving the picture reconstituting means is synchronized by means of a tuned oscillator or valve circuit responsive to a frequency component of the incoming signals, the motor may comprise an annular stator provided with four poles and a toothed rotor, or, as shown in Fig. 5, the stator 33 may have two poles 34, 35 only, each provided with bifurcated tips 36 .. 39 of which two, viz, 36 and 39, are wound with copper to render the motor self-starting. In another construction, Fig. 11, a two-pole motor is furnished with a starter comprising a lever 57 fitted with a toothed segment 55 that meshes with a pinion 52 on the motor shaft 48, a buffer 58 contacting, at the end of the lever's movement, with the knob of a tumbler switch 46 controlling the supply of current to field windings 42, 43, while simultaneously the segment 55 is slid axially to disengage the pinion 52. In order to obtain a sharp synchronism the teeth of the rotor are made relatively narrow, while the wave form of the synchronizing current, instead of being sinusoidal, has acute peaks, e.g. as shown in Figs. 7 and 8. The form shown in Fig. 7 may be generated in known manner by overloading the grid of the power valve driving the motor and by working the valve near the bottom bend of its characteristic curve, while the form shown in Fig. 8, is derived by tightening the coupling between the grid and anode of the power valve beyond the point at which self-oscillation would be maintained.
Patent GB-562790-A (GB)
Title: Improvements in the manufacture and production of cellulosic textile materials with improved crease-resisting properties
IPC: D06M15/423
Filed: 1942-12-21
Abstract: The crease-resisting properties of cellulosic textile materials are improved by impregnating the materials with a solution containing formaldehyde and urea or thiourea, either as such or in the form of a water-soluble pre-condensate, together with an acid catalyst consisting of a mixture of boric acid and an aliphatic hydroxycarboxylic acid, and thereafter subjecting the treated materials to the action of heat to convert the formaldehyde and urea or thiourea or the water-soluble pre-condensate into an insoluble condensation product.  The hydroxycarboxylic acid may be tartaric acid or lactic acid.  The impregnating liquid containing boro-tartaric or boro-lactic acid remains clear for a long time without precipitation of an insoluble compound and it causes less reduction of tensile strength of the material than a similar liquid containing tartaric or lactic acid but no boric acid.  A small proportion of a diaryl-guanidine may be added to the impregnating liquid.  In an example, urea is added to a 40 per cent solution of formaldehyde and then caustic soda is added till the mixture has a pH of about 9.  The solution is heated for a few minutes at boiling point, cooled rapidly and then diluted with water.  There is then added a small amount of an aqueous solution of boric and lactic acids.  A fabric made of viscose staple fibre yarn is impregnated with the solution on a pad mangle and immediately dried at 60-90 DEG C. and then heated for several minutes at 135-140 DEG  C.  The fabric is washed in a warm solution of soap and ammonia.  Specification 546,122 is referred to.
Patent GB-868360-A (GB)
Title: Manufacture of quinacridone pigments
Inventor: WILKINSON DONALD GRAHAM
IPC: C09B48/00
Filed: 1958-06-06
Abstract: 2 : 5-Bis-(phenylamino)-terephthalic acids substituted in the 31 position of the phenyl groups by methyl, trifluoromethyl or chlorine or substituted in the 41 position by chlorine are made by hydrolysing the corresponding dimethyl esters which are made by dehydrogenating the corresponding dimethyl 3 : 6-dihydro-2 : 5-bis (phenylamino) terephthalates prepared by condensing dimethyl succinylosuccinate with m-toluidine, m-trifluoromethyl-aniline or m- or pchloro-aniline respectively.  2 : 5- Bis- (21-methoxyphenylamino) terephthalic acid, 2 : 5- bis- (41-phenylaminophenyl amino)-terephthalic acid and 2 : 5-bis(pyridyl21-amino) terephthalic acid are made by hydrolysing the corresponding dimethyl esters. Specification 868,361 is referred to.ALSO:Linear quinacridones are made by heating a 2 : 5-bis(arylamino) terephthalic acid or an alkyl ester thereof with a polyphosphoric acid.  Examples are given.  The products are yellowish-red to bluish-red pigments and are used for colouring paints, lacquers and plastic materials.  Specification 868,361 is referred to.
Patent GB-543795-A (GB)
Title: Improvements in injection valves and nozzles for internal combustion engines
IPC: F02M45/04
Filed: 1940-12-24
Abstract: 543,795. Fuel-injection valves. KAMMER, G. S. Dec. 24, 1940, No. 18120. [Class 7 (iii)] A valve for effecting fuel injection at different times with differing characteristics in the same cycle comprises a valve body 4 which is oscillated to bring ports 5, 6 therein into register with corresponding injection orifices 1, 2 in the valve casing 3. The valve 4 is oscillated by means of a crank arm 12 which is engaged by a check valve 14 opened by the pressure of the fuel admitted at 15, the valve 4 being returned, when the fuel pressure is relieved, by a spring 13. The form shown is adapted for use with a jerk pump P of the kind described in Specification 542,844, having two deliveries of fuel which are supplied to the valve at 15 and 10. The former delivery opens the check valve 14, and rotates the valve 4 to bring the ports 5, 6 into register with the orifices 1, 2, so that fuel is at first delivered through the passage 11 and orifices 1, and later through passages 10, 8 and the orifices 2. In a modification an ordinary jerk pump is used, delivering fuel only to the check valve, which is so constructed that it first opens the passages to the upper orifices 2, and later those leading to the lower orifices 1. There may be two orifices in the upper set, and four in the lower. In another form the check valve takes the form of a piston slide valve working in a transverse bore at the top of the valve 4, and formed with a groove engaging a crank pin on the valve 4.
Patent GB-820426-A (GB)
Title: Fluid pressure brake mechanism
IPC: F16D55/00
Filed: 1957-06-07
Abstract: 820,426. Fluid-pressure brakes. SANFORD, R. S., EATON, W. A., SEDERGREN, E. D., CASLER, R. H., and EAMES, J. O. June 7, 1957 [June 11, 1956], No. 18136/57. Class 103 (1). In fluid - pressure brakes of the type set forth in Specification 801,073, wherein friction elements are cooled by a circulating liquid under pressure, such liquid being further pressurized for effecting engagement of the friction elements 29 and 41, in Fig. 1, the brake-plate 20 is slidably mounted on the inner surface of member 18 and carries friction-rings 22, the friction elements 29 and 41, which are preferably of a highly conductive metal such as copper, being corrugated on their back faces to increase heat flow to cooling liquid flowing in channels 26 and 40 below the elements. As shown in Fig. 1, a piston 33 of rigid type is disposed below the left-hand friction element 41 and slidable in the stationary brake cylinder member 13. The liquid spaces behind the friction elements to each side of the brake disc are connected by registering ports 47 and 48 in the two halves of the members 13 and 14. The circulation of cooling and actuating liquid through the brake takes place in the following manner. Liquid is supplied to the plenum chamber 49 and thence to the cylinder or pressure chamber through cored passages 34 and port 37. From this point the cooling liquid circulates through the cylinder and enters channel 40 in the piston through inlet port 55. It then circulates through the channel and discharges through a tubular dam mechanism 56 shown in detail in Fig. 3. From the passage 59 behind the dam 56, it passes to the outlet from the plenum chamber and an outlet port (not shown). In an alternative embodiment there are two axially spaced brake discs, which are forced towards each other against a central member through which the cooling liquid is circulated.
Patent GB-1140932-A (GB)
Title: Aircraft antenna fittings
IPC: H01Q1/28
Filed: 1967-04-20
Abstract: 1,140,932. Rod couplings. W. C. ROGERS. 20 April, 1967, No. 18211/67. Heading F2G. [Also in Division H4] A connector which may be used between the end of an aircraft aerial wire and a support on the aircraft comprises means such as a pin 80 which shears when pull on the wire exceeds a certain amount, thereby allowing the connector to extend by the movement of another pin 82 in a slot 48, said pin 82 then taking the pull of the aerial wire. If the pull on the wire is further increased, the pin 82 will shear, and the connector pull apart, so releasing the aerial wire, as it is aranged that the pin 82 is stronger than the pin 80, but not stronger than the aerial wire 2. As described, the aerial wire, which is insulated, is inserted in a hole 8 in a bullet-nosed cap 7, and its central conductor is secured in a wire adaptor 12 which screws into the cap 7. A piston assembly is screwed into the adaptor 12 by its threaded stem 42 and over its piston 44 is slid the inner bore of the cylinder wall 54 of a cylinder assembly. The pin 80 is inserted through registering holes in the cylinder wall 54 and the piston 44, and the pin 82 is inserted through holes in the cylinder wall 54 which register with one end of a slot 48 in the piston 44. An outer housing 72 is then slid over the cylinder assembly and is screwed on a threaded stem 60 thereof, so trapping the pins 80, 82. An insulator 20, which screws on a threaded stem extending from the outer housing 72, carries at its other end a spring-mounted eye member. The outer surfaces of the component parts of the connector are smoothly merged in order to reduce corona formation.
Patent GB-498231-A (GB)
Title: Improvements in or relating to devices for the impulse-testing of electrical machines and apparatus under operating voltages
IPC: G01R31/06
Filed: 1937-07-01
Abstract: 498,231. Testing for faults. SIEMENSSCHUCKERTWERKE AKT.-GES. July 1, 1937, Nos. 18363 and 18364. Convention dates, July 1, 1936 and Sept. 8, 1936. [Class 37] Windings or other parts of electrical apparatus are impulse-tested while under ordinary operating-voltages by connecting them to an impulse generator through quenched sparkgaps traversed by a moving quenching medium. The arc formed can initiate the quenching conditions, or a separate medium can be conveyed, this medium being oil, water, gas under pressure or compressed air. The sparkgap may be located in a chamber and the length of the gap varied. The flow of the quenching medium can be controlled by a relay, or its rate of flow can be regulated. The impulse generator comprises a known condenser bank 5 discharging through sparkgap 6 and resistor 8, the windings of apparatus 1 under test being connected to the impulse circuit through quenched gaps 4, the arc formed being quenched by the moving medium 9. Three-phase apparatus may be tested by a single-phase impulse fed through a quenched gap, the other phases being connected to earth through quenched gaps and resistors. The Specification as open to inspection under Sect. 91 describes spark-gaps in the form of a pile of resistance plates insulated from each other by air or mica. This subjectmatter does not appear in the Specification as accepted.
Patent GB-707912-A (GB)
Title: Improvements relating to laundry and like folding machines
Inventor: WOODWARD STANLEY
IPC: D06F89/00
Filed: 1951-08-03
Abstract: 707,912. Folding sheets &c. BAKER PERKINS, Ltd. July 15, 1952 [Aug. 3, 1951] No. 18394/51. Class 42 (2) In a sheet or flatwork folding machine of the type in which the leading edge of the article is arrested and raised to provide a stationary upper ply beneath which a lower ply travels to form the fold, means are provided adapted to cause a ballooning or floating of the upper ply whereby such ply is maintained substantially out of contact with the lower ply during the folding operation. As shown, ballooning is effected by jets of air 4 directed forwardly of a perforated or slotted pipe 2 extending transversely across the machine rearwardly of the pivoted gripping fingers 1 ; alternatively, a series of independent nozzles, or a pair of flattened nozzles located one at each side of the machine, may be used. Similar air-blast ballooning means may be provided for a second fold. Where the once-folded article has to enter a second folding zone or pass beneath an obstruction, the folded leading edge may be progressively flattened by passing beneath air jets directed downwardly from pipes forming a flat V with the apex forwardly directed, so that flattening takes place from the centre outwards ; alternatively, flattening may be effected by a series of independent nozzles, an inclined guide plate extending across the machine, a series of endless conveyer bands having a lower inclined lap, or a rotating roller mounted above the folder conveyer.
Patent GB-857083-A (GB)
Title: Improvements in surface springing
Inventor: HOOPER THOMAS
IPC: A47C23/15
Filed: 1957-06-11
Abstract: 857,083. Spring surfaces. BERESFORD, E. G. Sept. 11, 1958 [June 11, 1957], No. 18449/57. Class 52(4) The ends of helical tension springs 2 are connected to the supporting frame 1 by zig-zag lengths of spring wire or strip 3 secured to the frame and to the springs at the angles of the zig-zag. The helical springs may be parallel as shown or in a network and similar zig-zag lengths may form intermediate connectors for springs not spanning the frame.
Patent GB-741817-A (GB)
Title: Pneumatic insole
IPC: A43B17/08
Filed: 1952-07-22
Abstract: 741,817. Ventilating footwear; foot-arch supports. HICKS, T. L. Oct. 13, 1953 [July 22, 1952], No. 18453/52. Class 17 (2). [Also in Group VI] An insole adapted to provide ventilation to a shoe comprises an envelope 1 having an air inlet 3 in the lower wall of the heel portion 4 and outlets 5 in the upper wall of the toe portion. An inlet tube 7 has an outlet 10 and is secured in the shoe, as by adhesive, so that the openings 3, 10 coincide. The tube may be provided with a screen 11 on which may be placed medicaments for introduction into the air stream. A one-way valve 6 is provided between the inlet 3 and outlets 5 consisting of a flexible flap secured to the top wall so that air is forced past the valve by heel pressure to the outlets 5. An air-filled arch support 12, Fig. 6, having an air inlet 13 and valve 14 may be secured within the envelope 1. Modified methods of admitting air to the inlet 3 such as by holes in the heel or a perforation in a button secured to the counter are also described.