baber/WOPTO huggingface dataset:
Patent GB-794012-A (GB)
Title: Improvements in or relating to the manufacture of continuous, non-fibrous, regenerated cellulose sheet material which is subject to shrinkage during drying
Inventor: STEVENS WILLIAM HENRY
IPC: B29D7/00
Filed: 1955-12-05
Abstract: A continuous web of non-fibrous gel regenerated cellulose sheet material produced by the viscose process, and not previously dried and re-wetted, is passed through a drying zone in which it is subjected to a drying temperature maintained substantially uniform across the width of the web, the web being maintained under longitudinal tension just sufficient to prevent its wrinkling or distortion until the moisture content of the edge lanes of the web has been reduced to about 0.1 to 0.5 times the weight of the dry cellulosic material, and the moisture content of the centre section of the web has been simultaneously reduced to approximately 0.3 to 1.5 times the weight of the dry cellulosic material, the moisture content of the centre section being higher than that of the edge lanes.  Thereafter the longitudinal tension on the web is increased to an amount sufficient to elongate the centre section to about the same length as the edge lanes, and the drying of the web is completed.  The tension just sufficient to prevent wrinkling of the web is not sufficient to prevent shrinkage of the web as it dries. The edge lanes of the web are areas 3-6 inches wide extending lengthwise of the web and each bounded on one side by an edge of the web.  The centre section constitutes the remaining area of the web between the edge lanes. In the illustrated example, wet regenerated cellulose film web, containing 3.0-3.5 times as much water as cellulose, enters a dryer, which contains a series of driven heated rolls, such as are described in Specification 488,137, [Group XIII]. In the first section of the dryer the web passes over a series of rolls operated at a speed which maintains the web under just sufficient longitudinal tension to prevent wrinkling.  When the moisture contents of the edge lanes and the centre section of the web have been simultaneously reduced to 0.1-0.5 and 0.3-1.5 times the weight of the dry cellulose in the web, respectively, the web is passed over a second series of dryer rolls, the peripheral speed of which is about 0.4 to about 3.0 per cent above that of the preceding dryer rolls.  The increase in web tension resulting from this increase in peripheral speed causes the moister and still plastic centre section of the web to elongate to approximately the same length as the already dried edge lanes.  The drying is then completed with the centre section of the web having the same length as the edge lanes, and the film leaves the dryer and is collected as a roll having a moisture content about 0.06 times the weight of the dry cellulose in the roll.  Fibres dried according to the invention have improved flatness, as shown by a reduction in the centre and edge droops of unsupported lengths of film. Specification 794,013 also is referred to.
Patent GB-1151307-A (GB)
Title: Novel Alkyl o-Carboxyphenylcarbonates and the Preparation thereof
IPC: C07C69/86
Filed: 1967-07-28
Abstract: 1,151,307. Alkyl o - carboxyphenylcarbonates. SMITH KLINE & FRENCH LABORATORIES. 28 July, 1967 [2 Aug., 1966], No. 34940/67. Heading C2C. Novel alkyl o-carboxyphenylcarbonates of the general formula wherein R is a C 4-8  alkyl group, are prepared by reaction of salicyclic acid with a C 4-8  alkyl chloroformate. Pharmaceutical compositions having analgesic activity comprise an alkyl o-carboxyphenylcarbonate of the general formula above and apharmaceutical carrier.
Patent GB-340375-A (GB)
Title: A process and apparatus for melting scrap metal
IPC: C22B7/00
Filed: 1929-11-15
Abstract: 340,375. Charging furnaces. HIRSCH, KUPFER-UND MESSINGWERKE AKT.- GES., Messingwerk, near Eberswalde, Germany. Nov. 15, 1929, No. 34943. Convention date, Jan. 19. [Class 51 (ii).] Charges, agitating.-In melting scrap metal the unmelted material is stirred and prevented from bridging by a stirring arm 3 moved to and fro above the molten metal. As shown the stirrer 3 together with a shaking charging tray 4 are mounted on a frame 2 adjacent the furnace. The stirrer, which has a head 13 tapering upwardly, is secured in a frame 6 swingingly pivoted at 7 and actuated by an eccentric 8 so that it receives an up and down movement. The tray 4 swings about pivots 14, 14<1> and is actuated by an eccentric 16, which, as also the eccentric 8, is driven by a motor carried on the frame.
Patent GB-326134-A (GB)
Title: Improvements in electric motor control systems
IPC: H02P5/68
Filed: 1928-11-27
Abstract: 326,134. Miller, L., Filmer, C., and Associated Electrical Industries, Ltd. Nov. 27, 1928. Controlling motors by varying terminal voltage; varying field. - The motor armature 4 receives current from the generator 9 of a motor-generator set, which has a separately excited field-winding 10, an opposing series field-winding 11, and a self-excited shunt field-winding 16. The object is to exaggerate the inverse variation of speed with torque as compared with a series motor, and thus to allow of stalling without injury. The generator of the set may be connected as a booster in series with the working motor armature and the mains. As a modification, the winding 16 may be excited jointly from the mains and the generator 9. The series field-winding may be partly short-circuited or have resistance inserted automatically when the current exceeds a given value. Reference has been directed by the Comptroller to Specification 183,894.
Patent GB-202576-A (GB)
Title: Method of and means for controlling or regulating the thickness of sheet glass obtained by vertical drawing
IPC: C03B15/06
Filed: 1922-12-22
Abstract: 202,576. Soc. Anon. Brevets Fourcault. Oct. 25, 1922, [Convention date]. Drawing.-Relates to the Fourcault process cf drawing sheet glass in which the sheet f, Fig. 9, is drawn through a slot in a block Z of refractory material. According to the invention, the recess e in the block, instead of being uniform in crosssection, as shown in Fig. 1, is made broader towards the ends, as shown in Fig. 5, the drawing slot d being kept of uniform width as before. This arrangement is stated to avoid the lack of uniformity in the thiekness of the sheet due to the lower temperature of the metal along the walls of the tank.
Patent GB-987744-A (GB)
Title: Process for moulding footwear having reinforcing elements
IPC: B29C33/12
Filed: 1963-09-05
Abstract: 987,744. Shoe stiffeners. SOC, INDUSTRIELLE DU CAOUTCHOUC REGENERE. Sept. 5, 1963 [Oct. 16, 1962], No. 35103/63. Heading A3B. [Also in Division B5] In a process for moulding footwear from rough forms of vulcanisable material, said footwear having at least one metallic reinforcing element 1, Fig 1, a rough form 6, Fig. 4, having at least one cut-out portion 5 is placed with the cut-out portion located substantially symmetrically about the plane in which two shells of the mould meet, between the reinforcing element and the mould core prior to vulcanising the rough forms together.
Patent GB-487411-A (GB)
Title: Weft fork mechanism for looms
IPC: D03D51/34
Filed: 1936-12-22
Abstract: 487,411. Weft stop-motions for looms. SMITH, R. H., and SHACKLETON, G. W. Dec. 22, 1936, No. 35153. [Class 142 (i)] The centre shed weft fork 12 is lifted by a cam 2 on the main or other shaft 3 and is lowered under the control of the cam 2 by an adjustable torsion spring 18 on the fork pivot 11c. The cam 2 acts through a lever 4 and rod 5 on a lever 6 loose on a shaft 7 mounted on the lay 8 and extending across the loom. The dagger 15 also is loosely mounted on the shaft 7, but has a projecting lug 14a to engage a lever 13 fixed on the shaft by which the dagger is lowered against the action of a spring 14b. Fixed on the shaft 7 also are a forked lever 10 and a lever 9 which is positively moved in one direction by the lever 6 and in the other direction resiliently through the spring 7a. The lever 10 operates the fork 12. When weft is present the lever arm 10b passes through a slot in a projection 11b connected with the fork. When weft is absent the projection 11b and lever arm 10b lock as shown in Fig. 2, with the dagger 15 in the stop position. The spring 7a allows the rod 5 &c. to complete their movement. The parts are arranged so that the loom is stopped before the beat-up.
Patent GB-1036638-A (GB)
Title: Building structure
Inventor: ISAAC GWYLON
IPC: E04B1/24
Filed: 1963-09-05
Abstract: 1,036,638. Framed building structures. PRESTRESSED & REINFORCED CONCRETE ENGINEERING Ltd. Dec. 4, 1964 [Sept. 5, 1963], No. 35192/63. Heading E1V. A panel 11 is applied to each aperture of a framework formed by framework components 14, 15, each panel comprising at least a concrete frame 12 which fits within and is shear- and tension-resistantly united to the framework components 14, 15. The panel frame 12 has recesses 13 within which studs 16 projecting from the framework components 14, 15 are bonded by concrete filling. A floor 17 is also bonded with the frame panel 12. The panel may have a central opening, as shown, or may be completely closed, or may be a plain flat panel wholly fitting within the framework components 14, 15, Fig. 7, not shown, in which case the panel frame is constituted by the periphery of the panel. The floor 17 may extend beneath the panel frame, Figs. 5 and 7 (not shown). The framework components 14, 15 may be formed of steel or may be wholly or partly of concrete.
Patent GB-216462-A (GB)
Title: Improvements in or relating to the treatment of oxidised ores or other oxidised compounds of copper
IPC: C22B15/00
Filed: 1922-12-27
Abstract: 216,462. Edwards, G. W., and Durant, H. T. Dec. 27, 1922. No Patent granted (Sealing fee not paid). Roasting.-Ores or other materials containing copper in the oxidized condition, including oxides, hydroxides, carbonates, silicates, basic or oxychlorides, &c., such as malachite, azurite, chrysocolla, and atacamite, are mixed with a solid carbonaceous material and heated at a temperature of 300‹ C. to 550‹ C. in an oxidizing atmosphere, after which the product is amenable to an ammoniacal leaching process, such as that described in Specification 215,802, [Class 1 (ii), Inorganic compounds, other than &c.]. The ore &c. is crushed to a fine state of division, for example to a linear mesh of 30, and is mixed either before or during crushing with coal, coke, charcoal, sawdust, straw, hay, or manure, &c., and is charged into a reverberatory furnace, where it is heated with an excess of oxygen for about an hour, during which time it is agitated by rabbling &c. After discharge from the furnace the product is allowed to cool, and recrushed if necessary before being submitted to the leaching process.
Patent GB-469230-A (GB)
Title: Improvements in shears, primarily intended for cutting plaster bandages
IPC: A61F15/02
Filed: 1936-12-23
Abstract: 469,230. Hand shears. ERICSSON, E. A. J. Dec. 23, 1936, No. 35242. [Class 30] A double jaw B is caused to reciprocate relatively to a flanged jaw A by means of two handles 20 which are moved about pivots 21 in a plane perpendicular to that of the jaws. The jaw B is pivoted at 10 to the jaw A, which is slotted to receive the pivot pin, and at 12 to a link 13 pivoted to a shank 1 integral with the jaw A. Also pivoted on the pin 12 is a rod 16 formed with rack teeth in gear with teeth on the ends of the handles, which are enclosed between plates 2, 22. The device is intended for cutting plaster-bandages, the jaw A, which remains at rest relatively to the pivots 21, being placed inside the latter, so that the patient is unaffected by the cutting movements which are confined to the jaw B.
Patent GB-505928-A (GB)
Title: Improvements in or relating to hydraulic brake apparatus
IPC: B60T11/228
Filed: 1937-12-20
Abstract: 505,928. Hydraulic brakes. WEIHE, H. K. Dec. 20, 1937, No. 35305. Convention date, Dec. 19, 1936. [Class 103 (i)] A hydraulic brake system has a reservoir communicating with the master cylinder through a non-return valve and an auxiliary chamber containing liquid under pressure and which communicates with the cylinder through a piston controlled port so as to maintain the liquid in the system normally under pressure and .to compensate for liquid losses. The reservoir 20 and a chamber 14 disposed within it communicate with the master cylinder 6 through a non-return valve 26 and a port 15 respectively, the liquid in the chamber 14 being under the pressure of a piston 16 loaded by a spring 22. The outlet passages 9, 10 are restricted so that during the return stroke of the master piston 4, liquid is drawn through the valve 26 into the cylinder, the excess being forced into the chamber 14 through the port 15 when this is uncovered and returning to the reservoir through ports 23 adapted to be uncovered by the piston 16. In filling the system, liquid put into the reservoir 20 is drawn therefrom and forced into the pipe lines 11, 12 by reciprocating the piston 4 the excess being returned through ports 23. The cylinder 6 may be formed with a side flange by which it may be bolted to the longitudinal chassis member of a vehicle, the reservoir 20 being offset laterally to permit of this.
Patent GB-1424428-A (GB)
Title: N-substituted carbamate ester compounds for the control of insects
IPC: C07C239/00
Filed: 1973-07-25
Abstract: 1424428 Insecticidal application of N-substituted carbamate esters HERCULES INC 25 July 1973 [7 May 1973] 35357/73 Heading A5E [Also in Division C2] Dispersible insect control compositions consist of a quantity effective to inbibit pupal metamorphosis of at least one compound selected from isopropyl N-(p-iodophenyl) carbamate 1-butyn-3-yl N-(p-bromophenyl) carbamate and 1-butyn-3-yl N-(p-iodophenyl) carbamate or comprise a quantity, effective to inhibit pupae metamorphosis, of at least one compound selected from isopropyl-N(p-iodophenyl) carbamate and 1-butyn-3-yl N-(p-iodophenyl) carbamate in either case the active compound being together with an application aid material (an inert material that facilitates distribution or dispersion of the compound on application) e.g. diluents, carriers, extenders, surfactants, spreading agents, sticking agents, wind drift control agents and inert gases such as are used in aerosol sprays, and may also comprise other biocidally active components such as insecticides, acaricides, herbicides, fungicides and plant nutrients. The invention also comprises a method for the control of an insect preparation, e.g. mosquitos, by applying to the habitat of said insect an effective quantity of at least one compound selected from those named above and:-isopropyl N-(p-chlorophenyl) carbamate and isopropyl or N-(p-bromophenyl) carbamate.
Patent GB-1189026-A (GB)
Title: Process for Dyeing Synthetic Materials
IPC: D06P5/24
Filed: 1968-07-24
Abstract: 1,189,026. Dyeing synthetic materials. FILATURES PROUVOST MASUREL ET CIE. 24 July, 1968 [24 July, 1967], No. 35387/68; Heading D1B. Synthetic materials e.g. cellulose acetate, polyamides, linear polyesters which may be mixed with cotton or wool are dyed by a) applying to a support an ink comprising a disperse dye which vapourises at 160-220C and an organic solvent substantially free of water (i.e. 15% or less) and removing the solvent medium to leave a support printed with dyestuff b) effecting oontact between the support and the textile to be dyed, c) heating said support and textile whilst in contact to a temperature above the vaporisation temperature of the dyestuff d) maintaining the heat to permit vaporisation of the dye and penetration thereof into the textile material, e) terminating the heating and separating the support and textile. Multi colours are obtained by printing the support with several dyes, the support may be paper, cellophane film or aluminium foil.
Patent GB-798101-A (GB)
Title: Improvements in or relating to gyratory crushers
IPC: B02C2/04
Filed: 1955-12-09
Abstract: 798,101. Gyratory crushers. ESCH, W., and ESCH, P., [trading as ESCH-WERKE KOMM.-GES.]. Dec. 9, 1955 [Dec. 21, 1954], No. 35394/55. Class 59 [Also in Group XXIII] A gyratory crusher comprises a crushing head supported from below for gyratory movement on an eccentric bush bearing, a crusher shell surrounding the crushing head and defining therewith a crushing gap, and a spherical bearing encompassing the shell and head. As shown, the core 1 of the crushing head 2 is connected by cross ribs 5 to a peripherial wall 6, the upper end of which carries a ring 8 formed with a part-spherical surface 9 which rests on a part-spherical bearing 12 secured to the outer wall 13 of the crusher casing by means of rings 14, 15. The wall 6 terminates at its lower end in a funnel 7 which is supported by a bearing 16 on a rotatable eccentric bush 17, the crushed material from the crushing gap 34 discharging through the funnel and eccentric bush The shell 23 is carried on a body 24 provided with a screwthreaded ring 25 which engages with a screwthreaded ring 28 provided with a groove 29 which is held in contact with a rib 31 of the ring 14 by means of spring-influenced screwthreaded bolts 32. In a modification, Fig. 2 (not shown), the peripheral wall of the crushing head is provided with lateral apertures through which the crushed material is guided downwardly outside the eccentric bush.
Patent GB-619704-A (GB)
Title: Improvements in gauges for measuring liquid levels
IPC: G01F23/02
Filed: 1946-12-02
Abstract: 619,704. Liquid - level pressure gauges. YARNALL-WARING CO. Dec. 2, 1946, No. 35656. Convention date, March 6. [Class 106 (ii)] A gauge assembly for measuring liquid levels comprises a gauge body with an indicating portion, the body being laterally and rigidly attached to a liquid column and having intersecting passages connecting the indicating portion to the column through the point of attachment. A plurality of high pressure gauges 11 is mounted on a seamless pipe 10 connected to a boiler above and below the water level. Each gauge comprises a body part 12 having a longitudinal slot 13 terminating at each end in a hole 14 .intersecting a transverse hole 15 and so communicating with the central pipe 10. Each slot 13 is sealed laterally by flat glasses 17 with packing 18 clamped by slotted plates 19 with screws 20 and spring washers 21. The external ends of the holes 14, 15 are sealed with plugs 22 which may be removed for cleaning. The sides of the body parts 12 may be milled to the contour of the pipe 10, to which the gauge may be fixed by welding from the fillet 26 to 27 or only where necessary to seal the communications from the holes 1,5. The gauge may be clamped to the pipe by a yoke 29 bearing on a flat 30 and tightened by a screw 31, the communicating passage being sealed by a thimble 34 fitting within recesses 33, 34. Alternatively, where one gauge is disposed opposite another, bolts, straddling the pipe, may pass through the glass of one and co-operate with a threaded bore in the glass of the other. Each gauge is symmetrical and so reversible and interchangeable with any other. The gauges may overlap as in Fig. 1, be placed in spaced relation at varying diametrical positions on the pipe or one or more may be fitted in line with the pipe.
Patent GB-829742-A (GB)
Title: Electric circuit for producing power amplification of an input signal
IPC: H03K7/08
Filed: 1956-11-23
Abstract: 829,742. Magnetic amplifiers. JOHANNESSEN, P. R., and SIMONS, J. C. Nov. 23, 1956 [May 29, 1956], No. 35979/56. Class 40 (9). [Also in Group XL (c)] A power amplifier comprises a saturablereactor pulse-width modulator followed by a transistor class-B amplifier and an output circuit comprising a low-pass filter. The pulse width modulator 3 delivers a resultant train of pulses 6 whose lengths are proportional to the amplitude of the input signal 4, Fig. 3, the pulse train being applied to a class B transistor amplifier 7 operating effectively as a switching circuit and the output therefrom being passed through a low-pass filter 15 to recover an amplified version of the input signal. Fig. 2 shows the circuit in detail. The input signal is applied over conductor 1 to the input windings of a magnetic amplifier comprising a saturablereactor bridge circuit 3 operating as a pulsewidth modulator. The excitation windings of the modulator are supplied from a transistor oscillator 2 comprising NPN transistors I and II retroactively coupled by the primary windings of a transformer having a saturable core. The oscillator supplies a rectangular-wave output from which is derived the modulator output comprising two width-modulated pulse trains appearing at 27 and 29. The modulator output is applied to class B push-pull-connected amplifier 7 comprising NPN transistors III and IV and PNP transistors V and VI. The transistors V and VI are normally substantially non-conductive; however, when a resultant pulse output is supplied from the modulator 3 one or other of them becomes fully conductive and a heavy resultant output current flows. The pulse component in the output circuit is removed by capacitor C so that an amplified version of the input is applied to the load, shown as a resistor R.
Patent GB-754093-A (GB)
Title: Improvements in or relating to fluid pressure responsive motors, more particularly for internal shoe-drum brakes
IPC: F16D51/30
Filed: 1954-12-13
Abstract: 754,093. Internal shoe-drum brakes. BENDIX AVIATION CORPORATION. Dec. 13, 1954 [Dec. 28, 1953], No. 36041/54. Class 103 (1). In an internal shoe-drum brake, the shoes 10 and 12 are arranged to anchor by abutment of the pistons 42 upon members 38 disposed transversely across the middle of the actuator cylinders. Such members 38 being provided with longitudinal passages therein affording hydraulic inlet to, and exit from, the wheel cylinders and arm secured to the torque spider 38. A strut 46 transmits thrust from one of the pistons 42 to shoe 12 by means of a pivoted lever 52 which increases the force on the shoe. Thrust between the other piston 42 and shoe 10 takes place through a threaded rod 48 co-operating with a crown-wheel 74 and star-wheel 76 to provide an adjustment mechanism. The shoes have parallel web members 16 and-18 and are guided laterally by bands 77 disposed therebetween and secured at each end to the spider member 28 which withstands all the brake torque.