baber/WOPTO huggingface dataset:
Patent GB-1390261-A (GB)
Title: Method and apparatus for transforming an analogue signal into a binary signal
IPC: G06V10/28
Filed: 1972-03-16
Abstract: 1390261 Code reading circuit ZELLWEGER USTER Ltd 16 March 1972 [24 March 1971] 12340/72 Heading G4M [Also in Division H3] A binary signal formed by optically scanning a coded pattern is regenerated by differentiating the signal, suppressing before or after differentiation signals having a slope exceeding a given value, and producing one output level when the differentiated signal exceeds a given positive value, the output signal being maintained until said signal falls below a given negative value. As shown, the signal obtained by optically scanning the pattern illustrated in Fig. 1, is received as shown in Fig. 4, together with noise pulses not illustrated. The received signal is amplified (at 48) and differentiated (at 27) to produce the wave shown in Fig. 8, a low-pass filter (34) serving to suppress signals having excessive slope. A positive signal comparator (73) sets a bi-stable circuit (105) when the differentiated signal exceeds a positive voltage at (77) and it remains set until the signal falls below a negative level at a comparator (85) to provide the reconstituted signal, Fig. 2. A reset pulse may be applied (at 110) if the output has dwelt in one state too long. The filter could be before the differentiator.
Patent GB-666653-A (GB)
Title: Improvements in or relating to methods of duplicating magnetic recordings, the elongated magnetic record members resulting from said method and apparatus for duplicating magnetic recordings from a master tape
IPC: G11B5/86
Filed: 1949-05-11
Abstract: 666,653. Duplicating sound records. MINNESOTA MINING & MANUFACTURING CO. May 11, 1949. [June 21, 1948] No. 12555/49. Class 40 (ii). Magnetic recordings are duplicated by placing the magnetic surface of a master record in contact with the magnetic surface of a record blank in the presence of a field that introduces strains in the lattice structure of the second magnetic surface so that it has larger residual magnetism and a more linear response to the magnetic field of the master record. Such fields may include thermal strains, mechanical vibrations, magnetic fields, X-rays, electrostatic fields, or spark discharges. The coercive force of the master record should be greater than that of the copy so that a field strong enough to produce the copy will not erase the master trace. In one construction a master tape 1 and a blank tape 3 are held in contact with a revolving drum 4 by pulleys 2 and 2a. They are subjected to a disturbing magnetic field from an electromagnet 6, the strength of this field decreasing progressively to zero along the line of travel of the tapes. In a modification a master tape passes from reel 13 to reel 15 over a number of drums 11 and at each of these it makes a separate copy on a tape 16. The disturbing fields are provided by electromagnets 8 which may be replaced by permanent magnets. In a further modification the master tape is fixed permanently at the bottom of a spiral groove 24 in a revolving drum 21, carriages 27, bearing reels for copying tapes and pulleys to press these into an adjacent part of the groove on the drum, are traversed along slides 28 to record the full length of the master tape.
Patent GB-1022138-A (GB)
Title: Gas pressurised container
IPC: B65D83/14
Filed: 1964-03-25
Abstract: 1,022,138. Pressure-resisting doors. GASPAK PTY. Ltd. March 25, 1964 [April 10, 1963; Nov. 27, 1963], No. 12661/64. Heading F2P. [Also in Division F1] A pressurized dispenser for liquids or gases is provided with a detachable cap member 17 in which is mounted the discharge valve and discharge passage 5 and orifice 11. A pressure plate 23 is fastened to the cap 17 by screws 28 which are secured to a bridge bar 29. A rod 16 is screwed into the bar 29 to secure the cap member 17 on the container 12 of the dispenser. In an alternative embodiment the bridge bar is replaced by a hollow conical member, the base of which is screwed to the cap 17 and the rod 16 screws into the apex thereof. The dip tube 34 passes through a side opening of the conical member into the interior thereof.
Patent GB-280805-A (GB)
Title: Improvements in sewing machine presser foot hemmers
IPC: D05B29/00
Filed: 1927-05-13
Abstract: 280,805. Fairweather, H. G. C., (Greist Manufacturing Co.). May 13, 1927. Presser-feet.-A presser-foot hemmer formed of sheet metal parts comprises a presser-foot 12 to which are riveted two thin plates 14, 17, the former having a tongue 15, and the latter a bent portion 18 carrying a downwardly bent scroll finger 19 which surrounds loosely the tongue 15. The inclined groove in the bottom of the presser-foot is milled out..
Patent GB-382564-A (GB)
Title: Improvements in means for mounting electric horns on vehicles
IPC: B60Q5/00
Filed: 1932-05-05
Abstract: 382,564. Arrangement of audible warning devices. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. May 5, 1932, No. 12920. Convention date, May 30, 1931. [Class 79 (iii).] An electric horn b is mounted in a recess in an element of a vehicle, e.g. the fuel tank a of a motor cycle, and is supported in the recess out of contact with the walls thereof so that it is capable of oscillation as a whole in a direction perpendicular to the plane of the diaphragm f. In one form, triangular plates d are secured by screws to a flange c of the horn casing and by a nut to a stay bolt e riveted to the wall of the tank a.
Patent GB-401654-A (GB)
Title: Improved means for the remote control of locomotives, engines and other machines
IPC: F01B25/00
Filed: 1932-05-05
Abstract: 401,654. Pneumatic relays. SMITH, R. J., 2, Heath Avenue, Littleover, Derby. May 5, 1932, No. 12967. [Class 8 (ii).] Remote-control means for locomotives, engines and other machines, comprises a control fitting consisting of a reducing valve and a release valve, the springs of which are loaded and unloaded simultaneously by the control handle, the reducing valve passing pressure fluid, such as air or steam, to a pipe line so as to maintain a pressure therein determined by the spring loading of the reducing valve, and the release valve allowing of the escape of pressure fluid from said pipe line if the pressure therein overcomes that of the valve loading spring, the pipe line leading to a cylinder having a piston therein which is displaced against spring pressure in proportion to the pressure in said line and the piston acting either directly or indirectly to effect the desired control. In the construction shown two controlling handles k are provided one controlling the regulator of a locomotive and the other the reversing gear. Each handle k rocks a spindle acting through rack and pinion gears h, i on the springs d, e of a reducing valve a and a release valve b so as to alter the loads on the springs simultaneously. The valve a controls admission of fluid from a pipe m to a pipe o leading to the part to be controlled ; the valve b allows fluid to escape to the atmosphere by an outlet n. Thus, the pressure in the pipe o depends on the loading of the springs d, e, and therefore on the position of the handle k. The pipe o is connected to a cylinder p having a piston r loaded by a spring s so that the position of the piston depends on the pressure in the pipe. A gauge t indicates the pressure in the pipe o and therefore the position of the piston r. The throttle or reversing gear may be directly operated by the piston r, but preferably the piston controls a servo-motor comprising a valve z which controls the supply of boiler water to a cylinder 12 having a piston connected by rack and sector to an arm 17 controlling the locomotive throttle. A rack u on the piston r gears with a loose pinion v which is carried by the valve z and gears with a rack x fixed to the piston working in the cylinder 12. When the piston r is moved the rack u rolls the pinion v along the rack x and the valve z is operated to admit water to one end or other of the cylinder 12, the piston in this cylinder being thereupon operated to rock the arm 17 and simultaneously to roll back the pinion v and return the valve z to its neutral position when the piston r has stopped moving.
Patent GB-1006945-A (GB)
Title: Production of adipic acid
IPC: C07C51/31
Filed: 1962-04-04
Abstract: Adipic acid is produced by contacting a cyclohexanone-containing substrate in an oxidation zone with a gaseous molecular oxygen stream in the presence of a manganese compound as catalyst at a temperature of from 60 DEG  to 105 DEG  C. and an oxygen partial pressure of from 1 to 30 p.s.i.a. and recovering adipic acid from the reaction mixture, the peak oxygen reaction rate being controlled such that it is at least 0.002 gm. mols./100 gms.substrate/min. when the reaction temperature prior to achieving the peak rate is 60 DEG  C. or higher, at least 0.004 gm. mols./100 gms. substrate/min. when the reaction temperature prior to achieving the peak rate is 70 DEG  C. or higher and at least 0.008 gm. mols./100 gms. substrate/min. when the reaction temperature prior to achieving the peak rate is 80 DEG  C. or higher.  The peak oxygen reaction rate may be controlled by altering the rate of flow of the molecular oxygen into the oxidation zone, or by adjusting the amount of mechanical agitation provided or by a combination of both methods.  The substrate may be obtained by reacting cyclohexane with molecular oxygen at a temperature of from 125 DEG  to 175 DEG  C. at a pressure of 55 to 500 p.s.i.g., and removing unreacted cyclohexane; cyclohexanol and adipic acid are obtained in addition to cyclohexanone.  The process of the invention is preferably carried out in the presence of a liquid reaction medium and the catalyst, which is normally a manganese salt and may include a copper salt as well, should be in a form soluble in the liquid reaction medium.  Examples are given, together with comparative examples having peak oxygen reaction rates below the values specified above.  Reference has been directed by the Comptroller to Specifications 941,662, 946,382 and 956,779.
Patent GB-796976-A (GB)
Title: A supply system for feeding electrical discharge lamps with high-frequency current
IPC: H05B41/24
Filed: 1956-04-27
Abstract: 796,976. High-frequency supply and switching systems for space discharge lamps. soc. TRIFLUX. April 27, 1956 [May 6, 1955], No. 12993/56. Class 38 (4). In a supply system for selectively feeding H.F. current produced by a self-oscillating thermionic valve generator to a plurality of electrical discharge lamps arranged in parallel circuit branches, the generator feeds the branches through a coupling impedance, each branch comprises in series a discharge lamp 7, 7a and a lamp current limiting impedance, and control switches 8 are provided to select the lamp to be lit. As shown, each limiting impedance is a capacitor 9 which may be housed in the lamp terminal cap and whose impedance value is of the same order of magnitude as the working resistance of the lamp, and the coupling impedance comprises magnetically-coupled inductances 3, 5. The generator comprises either two tetrodes 1, 1a, or pentodes, not shown, whose anodes are connected to the inductance 3 whose mid-point is connected through a choke coil 4 to an H.T. supply. The frequency of the H.F. current fed to the lamps is such that the duration of each half-wave is substantially shorter than the de-ionization time of the gas or vapour, e.g. mercury, argon, neon or krypton, in the lamp.
Patent GB-1333689-A (GB)
Title: Apparatus for testing the strenth of breakable articles
Inventor: ZAPPIA A T
IPC: G01N3/00
Filed: 1972-03-20
Abstract: 1333689 Endless conveyers A T ZAPPIA 20 March 1972 [22 March 1971] 13003/72 Heading B8A [Also in Division G1] Bottles carried along a conventional belt conveyer 40 are tested for strength by passing them between a conveyer belt 34 and a pressure head 63. Guides 41, 43, 44, and 42 are arranged on conveyer 40 so that during their passage in contact with conveyer belt 34, the bottles overhang the edge of conveyer 40. A guide 50 which has adjustable lips 51 and is vertically adjustable is provided for the tops of the bottles. Conveyer belt 34 comprises a pair of chains 35 mounted around sprocket wheels 31, 32 and a series of blocks 37 mounted on the chains. Each block 37 has a rubber friction facing 38. Sprocket wheel 31 is driven by motor 28 through a speed adjuster 29, and shoes 39 maintain belt 34 tensioned.
Patent GB-215580-A (GB)
Title: Improvements in or relating to measuring and mixing devices for liquids
IPC: B01F15/04
Filed: 1923-05-15
Abstract: 215,580. MeGown, R. O. May 15, 1923. Mixing by distributing one liquid into another- -A device for mixing petrol and oil, or other liquids in predetermined quantities, comprises a container A in which one liquid is placed, while the other, placed in a compartment B, is ejected by depressing a piston B<1> fitted with a bent pipe B<2> dipping into the container A. The end of the pipe is fitted with discharge openings b<2> which spray the second liquid through the whole volume of the first as the plunger is depressed.
Patent GB-1117711-A (GB)
Title: Vinyl acetate copolymer products and process of marking same
Inventor: LINDEMANN MARTIN KARL
IPC: C08F218/00
Filed: 1966-03-24
Abstract: A latex having a solids content of at least 45% of a copolymer of 5-40% ethylene and vinyl acetate is produced by polymerizing vinyl acetate in an aq. emulsion at 0-80 DEG  C. in the presence of an emulsifying agent and a polymerization catalyst while maintaining a continuous atmosphere of ethylene in the polymerization zone, the polymerization being initated after the aq. emulsion has been brought to equilibrium with respect to dissolved ethylene at a pressure of 10-100 atm.  The catalyst may be sodium formaldehyde sulphoxylate and potassium persulphate or ferrous sulphate.  The aq. emulsion may be maintained at a pH of 2-6 using ammonium or sodium bicarbonate or disodium phosphate. The latex may be of average particle size 0.1-2.0m  and may be maintained in emulsified form using a polyoxyethylene nonylphenyl ether, sodium lauryl sulphate, sodium vinyl sulphonate, polyoxypropylene, a polyoxyethylene/polyoxypropylene glycol, a hydroxyethyl cellulose or an ethylene oxide/tetramethyl decynediol adduct. The copolymer may also contain a third monomer, e.g. maleic acid, or a cross-linking agent, e.g. triallyl cyanurate, glycidyl acrylate, allyl glycidyl ether or N-methylol acrylamide. The vinyl acetate may be formed in situ using acetic acid in the aq. phase.  The latex may be formed into a paint by compounding with hydroxy ethyl cellulose, nonyl phenoxy polyoxyethylene ethanol, ethylene glycol, titanium dioxide, calcium carbonate and silicate, phenyl mercuric acetate, diethylene glycol monoethyl ether acetate and water.
Patent GB-441811-A (GB)
Title: Improvements in roll towel fixtures
IPC: A47K10/40
Filed: 1935-05-03
Abstract: 441,811. Roller holders. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Griffith-Hope Co. ; 6607, West Mitchell Street, West Allis, Wisconsin, U.S.A.) May 3, 1935, No. 13201. [Class 52 (v)] [See also Group XVII] Roll towels, paper rolls, &c. 127 are mounted between a pair of brackets 118 attached to a base plate 110 by stirrup-shaped springs 117 engaging the rear of the base plate at 124 and having integral retractable legs projecting forwardly through apertures 116 in the base plate and pivoted to the brackets. The base plate is flanged at 111 to house the springs 117, and the brackets have embossments 125 adapted to enter the ends of the roll and inturned side flanges 119 with openings 120 to receive hooks 121 formed on the ends of the springs 117, the inner corners of the flanges being rounded at 122. The outer parts of the side flanges 119 rest against ribs 123 on the base plate about which the brackets pivot when forced outwards for the insertion of a roll. The brackets may be swung inwards against the base plate for packing. Holes for the fixing screws are provided in dished portion 115 of the base plate. U.S.A. Specification 1,955,067 is referred to.
Patent GB-1122963-A (GB)
Title: Locking device
IPC: D03D51/00
Filed: 1967-03-21
Abstract: 1,122,963. Securing elements on shafts. CROMPTON & KNOWLES CORP. 21 March, 1967 [5 April. 1966], No. 13217/67. Heading F2U. To releasably lock a cam or gear-wheel 14 to a shaft 10 on which it is splined, a projection 44 on the side of the cam or gear-wheel and a projection 44 on the side of a locking member 16, also splined on the shaft 10, are acted upon by screw means 48 to urge the cam or gearwheel and the locking member in opposite circumferential directions about the shaft. The locking member 16 may be a second cam or gear-wheel. As shown, the screw 48 is screwed in one projection 44 and urges the projections apart. A locking screw 54 holds the screw 48 against rotation. In a modification (Fig. 5, not shown), a headed bolt (48a) urges the projections (44a, 44b) together. The invention is applied in a loom dobby to lock pairs of cams to a drive-shaft (Figs. 1, 2, not shown). The cams operate via bell-cranks to reciprocate harness lifter knives.
Patent GB-132483-A (GB)
Abstract: 132,483. Buratti, R. June 11, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Chloramine compounds are prepared by treating hexamethylenetetramine with solutions of alkali or alkaline-earth hypochlorites which have been neutralized by an organic acid or a weak mineral acid, e.g. boric acid. Mono-, di-, tri-, and tetrachloramine compounds can be obtained; an example is given of the preparation of a tetrachloramine formulated as C6H8N4Cl4.
Patent GB-132682-A (GB)
IPC: B23Q35/10
Abstract: 132,682. Herzog, J. Dec. 7, 1918. Lathes; face-plates; work-holders. - Curved panels for talking-machines, cabinets. &c. are shaped by a plurality of spring-pressed tools fed parallel to a rotating face-plate carrying the workpieces and controlled by a pattern. The workpieces 4 are held by the pins 5 of brackets 7 engaging holes therein, the brackets being mounted on bars 8 adjustably fixed on the plates 1 rotated by a pulley 2. In front of each plate is a slide 14 carrying a series of tool-bars 15 pressed by adjustable springs 18 to keep rollers 16 in contact with a pattern 17. The slide 14 is traversed along a slide 11 by a screw 24 and hand-wheel 22 a distance slightly greater than the distance between adjacent tools, the slide 11 having been moved by a screw and hand-wheel 12 to bring the tools up to the work.
Patent GB-790646-A (GB)
Title: Bismaleamic acid
Inventor: REED RONALD ARTHUR
Filed: 1955-05-09
Abstract: The invention comprises bis-maleamic acid of the formula HOOC-CH : CH-CO-NH : NH-CO-CH : CH-COOH and salts and functional derivatives thereof.  The acid may be prepared by reacting together maleic anhydride, a weak acid such as acetic and hydrazine, hydrazine hydrate or a salt of hydrazine, at a temperature below about 100 DEG C.  The hydrazine salt is preferably derived from a weak organic acid.  The functional derivatives of bis-maleamic acid may be prepared by any methods known in the art for the preparation of functional derivatives of dicarboxylic acids.  Specified functional derivatives are esters and amides of bis-maleamic acid.  Specified salts are alkali metal, ammonium and diethanolamine salts.ALSO:A plant growth regulant composition comprises bis maleamic acid or salts or functional derivatives thereof together with a solvent and/or a carrier and/or a wetting or dispersing agent. Specified functional derivatives and salts are amides and esters and alkali metal and ammonium salts of bis maleamic acid respectively.  The solvent may be water or an organic liquid, and diethanolamine may be employed to solubilize suspensions of bis maleamic acid in water. Specified solid carriers are clays, sands, talc, mica and fertilizers.  Specified wetting agents are aliphatic or aromatic sulphates or sulphonates such as cetyl potassium sulphate, sodium oleyl sulphate, sulphonated ethers, esters and amides, isopropyl naphthalene sodium sulphonate and dioctyl sulphosuccinate; amines, amides and quaternary ammonium compounds such as oleyl amide, trimethyl cetyl ammonium iodide and cetyl pyridinium bromide; and ethers or esters of polyhydric alcohols or polyhydric compounds.  The above described compositions may be used to retard the growth of grass.ALSO:A phytocide composition comprises bis maleamic acid or salts or functional derivatives thereof together with a solvent and/or a carrier and/or a wetting or dispersing agent.  Specified functional derivatives and salts are amides and esters and alkali metal and ammonium salts of bis maleamic acid respectively.  The solvent may be water or an organic liquid, and diethanolamine may be employed to solubilize suspensions of bis maleamic acid in water. Specified solid carriers are clays, sands, talc, mica and fertilizers.  Specified wetting agents are aliphatic or aromatic sulphates or sulphonates such as cetyl potassium sulphate, sodium oleyl sulphate, sulphonated ethers, esters and amides, isopropyl naphthalene sodium sulphonate and dioctyl sulphosuccinate; amines, amides and quaternary ammonium compounds such as oleyl amide, trimethyl cetyl ammonium iodide and cetyl pyridinium bromide; and ethers or esters of polyhydric alcohols or polyhydric compounds.
Patent GB-587408-A (GB)
Title: Improvements in or relating to valves
IPC: F16K31/143
Filed: 1944-07-12
Abstract: 587,408. Fluid-actuated valves. ROSS, J. C., and BRITISH ARCA REGULATORS, Ltd.July 12, 1944, No. 13312. [Class 135]- A valve member 2 is closed by the pressure acting on it from the inlet 1<1> and opened by the inlet pressure admitted to a chamber 22 above a piston 6 through an axial passage 5 in the spindle 4. The pressure in the piston chamber is controlled to effect opening or closing of the valve by a leak-off valve (not shown) in a pipe-line 20 leading from the chamber and an auxiliary valve member 27a which closes the axial passage 5 through the spindle under pressure of a spring 15 and is opened by means of a manuallyoperable spindle 11. Thus, to open the main valve 2 the leak-off valve must be closed and the auxiliary valve 27a opened. Closure is effected by opening the leak-off valve, the auxiliary valve being' closed under its spring pressure. A needle 14 in the axial passage 5 restricts the flow through this passage and the piston 6 seats on to a seating 26 when the valve is in the open position. A diaphragm or bellows may be used in place of the piston 6.