baber/WOPTO huggingface dataset:
Patent GB-457134-A (GB)
Title: Improvements in the treatment of cellulose acetate and other organic esters of cellulose
IPC: D06M11/38
Filed: 1935-05-23
Abstract: The acidyl content of filaments, fibres, yarns, fabrics, films, or like materials having a basis of an organic ester of cellulose is reduced by treatment with a hydrolyzable halide of an amphoteric metal.  Examples are titanium tetrachloride stannic chloride, and tungstic chloride or silicon tetrachloride may be used.  Affinity for cotton dyes may be imparted with small loss of weight, e.g. 0,5 per cent, the melting point may be raised, e.g. to 270 DEG  C., and the materials char at lower temperatures than the melting point as a warning that the temperature is too high.  The solubility of the materials and their reactivity towards various reagents may be greatly affected.  The halide is preferably applied in solution in a liquid having a hydrolyzing action on it, e.g. water, methyl, ethyl or isopropyl alcohol or aqueous alcohol. An acid other than that formed by hydrolysis may be applied with the halide, e.g. formic, acetic or propionic acid.  Suitable solutions contain 10--40 per cent titanium chloride and 5--20 per cent acetic acid, the temperature being maintained below 50 DEG  C. The time of treatment may vary from \ba1/2\be--24 hours depending on the temperature, particular halide employed.  The materials may be treated by impregnation by immersion followed by removal of excess solution and batching if desired under reduced pressure or in presence of a current of air.  Yarns and like materials may be treated in hank form or as packages on foraminous supsupports or while travelling through treating baths.  In an example cellulose acetate yarn in hank form is impregnated with an aqueous solution containing 10--40 per cent titanium tetrachloride and 5--20 per cent acetic acid by immersion for 1 to 2 minutes.  The material is then centrifuged until it contains 60--100 per cent of its weight of solution and is batched at a temperature between 10 and 20 DEG  C., for 12--24 hours.  It is then washed and dried.  The yarns may be wound on foraminous bobbins through which the solution is pumped. In another example a cellulose acetate fabric is impregnated with the solution described above, then drawn through padding rolls set to leave in the fabric solution equal to 60--100 per cent of its weight.  The fabric is batched at 10--20 DEG  C., until substantially dry and is then washed and dried.  Preferably the materials are treated to such an extent that they attain affinity for cotton dyes while retaining affinity for cellulose ester dyes.  The invention is particularly suitable for materials of high tenacity obtained by stretching threads under the action of organic agents or of water or steam as described in Specifications 438,584, 438,585, 438,655, and 438,656.  The stretched threads prior to treatment may have undergone a shrinking treatment as described in Specification 389,823.  Specifications 441,868 and 441,869 also are referred to. The Provisional Specification refers also to Specifications 417,220, 429,103, 430,349, 430,350, 430,351, 432,027, 432,028, and 443,726.
Patent GB-253562-A (GB)
Title: Improved process for cracking hydrocarbon oils
IPC: C10G11/04
Filed: 1926-06-15
Abstract: 253,562. Chemical Research Syndicate, Ltd. June 15, 1925, [Convention date]. Hydrycarbons, cracking. - Vapours of high boiling hydrocarbon oils are cracked by being heated, in some oases in presence of a metal oxide such as iron oxide, to temperatures of 1000‹ F. or over and are cooled to below 600‹ F. to cause deposition of carbon. The vapours are then submitted to dephlegmation and condensation. Oil, supplied to an inlet A<1> passes through a pipe still A and to a vapour separator B. Unvaporized residue runs off at B<2>. The vapours pass, together with steam from an inlet D, to a converter C, the inlet header C<1> of which is divided by a partition C<2> so that the vapours pass through the upper tubes and then through the lower tubes to an outlet C<4> leading to a chamber E, in which they meet a spray of oil, water or other liquid from a nozzle F, which causes separation of carbon. The vapours subsequently pass through a dephlegmator H to a condenser L and a separating tank M. When oil is used as the cooling liquid, the liquid from the base of the chamber E together with reflux from the dephlegmator is passed to the inlet A<1> of the pipe still. The tubes Q of the converter may contain cores of star-shaped crosssection formed of iron oxide or other substance mixed with a plastic material. The inlet Q<1> to the upper tubes of each section of the tubes Q are made smaller than those of the lower tubes or the cores are made of different sizes in order to obtain a slower flow of vapours through the upper tubes than through the lower tubes. Metal bodies T are supported on wires below the nozzle F.
Patent GB-296745-A (GB)
Title: Improvements in and relating to electric time switch mechanism
IPC: H01H43/10
Filed: 1927-06-07
Abstract: 296,745. Williamson, C. M., and Williamson, S. June 7, 1927. Winding - apparatus, electric.-Electric time switches which may be used in automatic photographic cameras of the type described in Specification 222,548, [Class 98 (i), Photographic cameras &c.], wherein a cycle of switching operations is effected by a clock which runs down for a certain time and is rewound by electromagnetic action for each cycle, the period of the cycle being adjustable, have the contacts for the winding solenoid and for the controlled devices such as warning lamps and an exposure solenoid arranged in a group mounted adjacent to the clockwork. As shown in Figs. 1 and 2, a spring 17 drives a shaft 11 through a one-way clutch 13 and an escapement mechanism 4 - - 10 the shaft 11 carrying a radial pin 35 bearing against a face cam 34. At the end of a predetermined period, the pin 35 rides on to the raised portion of the cam so forcing a contact controlling lever 30 about its pivot 31 against the action of a spring 33. The consequent movement of the insulated end 32 of the lever 30 first allows the spring blade 19 to bring contacts 23, 24 into engagement, so completing the circuit of the warning lamps 40, Fig. 4, and then permits the spring blade 20 to bring contacts 25, 26 into engagement to complete the circuit of the winding solenoid 36. The energization of the solenoid 36 causes the rotation of a toothed sector 16 to re-wind the spring 17, the escapement being unaffected because of the one-way clutch 13. At the end of the winding movement an arm 37, carried by the sector 16, strikes an insulated pillar 29 carried by the spring blade 19 breaking the winding circuit at contacts 23, 24. The lower end of the pillar 29 also bears on a blade spring 21 closing at contacts 27, 28 the circuit of the exposure solenoid 41. The sector 16 is then driven slowly by the spring 17 to its former position under the control of the escapement mechanism, the pillar 29 being thus allowed to rise and contacts 27, 28 to open. The ends of the blades 19, 20 are however held under the end of the lever 30 until this lever is again tripped by operation of the cam 34. The time of the switching cycle may be varied by adjustment of the cam 34 which may be effected by forming teeth 43 on the cam which are geared to a handcontrolled sector, rotation of which varies the initial position of the cam relative to the pin 35
Patent GB-1332098-A (GB)
Title: Dispenser package
IPC: B65D83/00
Filed: 1972-04-04
Abstract: 1332098 Dispensing package; packaging batteries P R MALLORY & CO Inc 4 April 1972 [7 April 1971] 15292/72 Headings B8C and B8P A plastics dispensing package for a plurality of individually removable hearing aid cells, comprises a case 12 having windows 22, 24, 26, 22A, 24A, 26A which expose part of each cell for viewing and testing, and a flexible cover 14 which is snapped over the case to close the case and hold the cells in position. The case 12 has a top wall 16, side walls 32, 44, and is divided into cell-receiving compartments by walls 37, 20. The cover 14 comprises a base, spacing columns 70, 72, hinged latches 74, 76 which engage the case 12 through apertures 80, and hinged doors 52, 54, 56, 62, 64, 66 having lips 40 which engage with ribs 36 of the case 12 to close each compartment individually. The case 12 has further ribs 88, 90 and the doors of the cover 14 have dimples 86 to hold the cells 29 in position in the compartments. A terminal card 90 with a tab 92 is placed inside the cover 14, the card 90 having an aluminium top layer 94 to facilitate testing of the cells and a dessicant body layer 96.
Patent GB-240228-A (GB)
Title: Improvement relating to the concentration or separation of minerals
IPC: B03B4/00
Filed: 1924-06-25
Abstract: 240,228. Lockwood, A. A. June 25, 1924. Separating by shaking-apparatus and rebounding surfaces; pneumatic separating. - Granular material is separated on a tray 1 with a smooth surface near to an end wall 2 from which the material is caused by the reciprocation of the tray to rebound to different degrees according to specific gravity. The material fed from a hopper 3 is spread by a baffle 4 with an adjustable gate 4<1>, and is fed along the table, which is adjustably inclined by gravity, the various strata into which the material collects being discharged at the front 6 and gates 7 in a wall 8. Riffles 9 may be provided to break up the material and prevent caking. The tray is adjustable about a pivot 10 so as to vary the angle between the wall 2 and the direction of reciprocation of the tray. In a modification, the wall 2 may be hollow with a permeable inner face. 2<2>, and air under pressure may be supplied thereto to assist in the separation. The material may be dry or suspended or floating in water.
Patent GB-384329-A (GB)
Title: Weight indicating rotary swivel for well drilling apparatus
IPC: E21B21/02
Filed: 1931-05-26
Abstract: 384,329. Well-drilling plant. NATIONAL SUPPLY CORPORATION, 120, Broadway, New York, U.S.A. May 26, 1931, No. 15367. Convention date, March 28. [Class 85.] In a swivel for a rotary well-drilling plant, the swivel stem 8 has a head 10 supported on a bearing comprising rollers 11 and upper and lower race rings 37, 12, the lower race ring fitting within an annular recess 13 in a ring 14 within the swivel body 5 ; the recess 13 contains oil &c., and is connected directly or through a flexible tube to a gauge 21 whereby the load is indicated. Oil may be admitted past a non- return valve 31 to the recess 13 through an aperture 34 in the body, which also serves for draining lubricant from the body ; leakage is made up on relieving the load on the swivel, by means of springs 36 which force upwards the race ring 12, whereby oil is drawn from the body 5 past the non-return valve. Specification 380,487 is referred to.
Patent GB-1093875-A (GB)
Title: Improvements in or relating to electron tubes
Inventor: DAY WALTER RANSON
IPC: H01J25/40
Filed: 1966-04-07
Abstract: 1,093,875. Velocity modulated tubes. SPERRY RAND CORPORATION. April 7, 1966 [April 7. 1965], No. 15523/66. Heading H1D. A microwave tube includes a slow wave structure in the form of an assembly of coupled resonant cavities formed by assembling together in alignment a plurality of conductive plates 26-37, Fig. 1, each of which has an aperture for the passage of an electron beam. and each of which, except at least one of the end plates, has a second aperture (41, Fig. 2, not shown), providing electromagnetic coupling between the cavities; means is also provided for deforming one of the end plates to tune the assembly. In the oscillator tube described, each plate is in the form of a disc having peripheral notches to aid alignment, a central beam aperture, and a ridge of increased thickness around its periphery, such that the discs may be brazed together in abutment to provide the cavities, preferably so arranged that their offset coupling apertures are rotated through 180 degrees in passing from one disc to the next. The collector 21 has a short tubular projection 53 which is brazed to the end-plate of the slow wave structure, a system of tuning and locking nuts 64, 68 and 69 permitting axial adjustment of the collector with consequent flexing of the end-plate to produce a small change in the resonant frequency of the slow wave structure, and hence in the frequency of the oscillator. An output waveguide 13 is coupled to the gun end of the slow wave structure by a stepped impedance transformer 14. A member 22, having cooling fins 23, is screwed on to the collector.
Patent GB-529224-A (GB)
Title: Improvements in foot arch supports
IPC: A43B7/22
Filed: 1939-05-25
Abstract: 529,224. Foot-arch supports. SCHOLL MANUFACTURING CO., Ltd., and LENTHALL, R. May 25, 1939, No. 15544. [Class 17 (ii)] The leather &c. covering b of a foot-arch support is detachably secured to the metal plate a by means of the engagement of punched-up projections c<SP>2</SP> on arms c<SP>1</SP> of a thin spring metal plate c riveted to the covering with recesses a<SP>1</SP> or holes in the metal plate. A detachable rubber protecting pad b may be sprung over the front end of the support.
Patent GB-440332-A (GB)
Title: Improvements in plate heat exchange apparatus applicable to milk pasteurization
IPC: A23C3/033
Filed: 1934-05-25
Abstract: 440,332. Plate heat - exchangers. PRESTAGE, E., 74, Great Russell Street, Bloomsbury, London. May 25, 1934, No. 15585. [Class 64 (iii)] The hollow plates 1 and covers 3 of a heatexchanger, e.g. a pasteurizer of the kind described in Specification 440,331, are hinged by plates 8 and pins 5, 6 to a standard 7 to facilitate opening out of the plates for cleaning. The heating or cooling fluid is supplied to, and withdrawn from, the plates through flexible tubes 16. The pasteurizer may comprise a preheater section 10 separated by a heatinsulated plate 9 from a heater section 11 through which hot water is circulated, and water and brine cooled sections 12, 13 also separated by a plate 9, the water from the section 12 being passed through the preheater section 10.
Patent GB-829631-A (GB)
Title: Improvements in or relating to dynamic braking systems for electric motors
IPC: H02P3/12
Filed: 1956-02-16
Abstract: 829,631. Control of D.C. motors. IGRANIC ELECTRIC CO. Ltd. (Cutler-Hammer Inc.). May 16, 1957 [Feb. 16, 1956], No. 15607/57. Divided out of 829,629. Class 38 (3). If, when a series motor M is operating in a " forward " direction, an under-voltage relay having coil UV1 should become de-energized, the motor is disconnected from supply-lines L1, L2. Due to dynamic action of the motor, current passes through rectifier 19 to relay-coils 1R1, 2R1, whereby contacts 1R2, 2R2, are closed. Accordingly braking current flows through field winding f, resistor 12, and contacts DB2, and the motor is brought to rest. As the motor approaches standstill, coils 1R1, 2R1 become de-energized to interrupt the braking circuit. When the motor is running in the " reverse " direction, and dynamic braking action is initiated, relay-coils 1F1, 2F1, are connected across armature a through rectifier 20. Thus, the braking circuit is completed through contacts 1F2, 2F2. During coasting operation of the motor, a voltage relay-coil VR1 is energized to close contacts VR2 so that coil 1M1 maintains contacts 1M2 closed. Coil TF1 is also energized in the " off " position of the master controller MS, and contacts TF2 are closed to connect field winding f across lines L1, L2, through resistor 18. This allows dynamic braking operation to be established if such is called for while the motor is coasting. In a modification, capacitors are charged from the lines L1, L2, when running connections for the motor are established. These capacitors discharge through the coils 1R1, 2R1, or 1F1, 2F1, during dynamic braking operation, so boosting the current afforded by the back-E.M.F. of the motor and ensuring the immediate response of the appropriate contactors, Fig. 3 (not shown).
Patent GB-1389324-A (GB)
Title: Fluid dispensing devices
IPC: A61M15/00
Filed: 1972-04-05
Abstract: 1389324 Pressurized dispensing containers J F GORMAN 5 April 1972 [5 April 1971]  15608/72 Heading F1R A dispenser e.g. for inhalation purposes comprises a container 12, Fig.3, mounted in a two part housing 11, the upper part 11b of which is movable from the position shown in Fig. 1 to that in Fig.3 in which it acts as a shield for the dispensed medicament. As shown, the container valve stem 15 is surmounted by an actuator 17  which at each end has a pivot 24 which engages a groove 25. Each groove 25 extends substantially the length of the part 11b. The actuator 17 also has a cam surface 29 which co-operates with a groove 31. In use, the part 11b is raised until the pivots 24 contact the end of the grooves 25 after which the part 11b is pivoted, guided by the cam surface 29 and groove 31, to the dispensing position of Fig.3. A notch 28 receives the stem 15 during the pivotal movement and the part 11b is retained in its horizontal position by engagement with an edge 27 projecting from the actuator 17. Assistance is only provided by the cam 29 which slightly deflects the adjacent wall portion to frictionally hold the part 11b. In a modification, Figs.6, 7 (not shown), the part 11b is prevented in the dispensing mode from being moved sideways, by a yoke (36) having two leg portions (38) one on each side of the valve stem 15, and a depending sleeve (37) which surrounds the top of the container 12. The stem 15 is secured to the yoke (36) by a U-shaped spring clip (41).
Patent GB-635291-A (GB)
Title: A new or improved material for use in road making
IPC: E01F9/04
Filed: 1947-06-13
Abstract: A traffic-directing sign (see Group X) comprises a layer containing a white or near-white synthetic resin, which may be a polyterpene, alkyd, polystyrene, chlorinated diphenyl, polymerized cyclohexanone, acrylic or vinyl resin, a phenol-formaldehyde resin, a resin formed from maleic anhydride and rosin as such or esterified with a polyhydric alcohol such as glycerine, or an ester resin prepared from rosin, modified rosin or natural copal, and a mineral filler, preferably titanium dioxide, either alone or mixed with white silica sand or carbonate of lime, the proportion of resin being preferably 20-30 per cent by weight of the material.  A small proportion of polyisobutylene or other synthetic rubber may be incorporated and the composition may include mica, finely-divided glass, aluminium powder or asbestos.  Specifications 556,935, 586,594, 586,595, 598,330, [all in Group XX], 598,696 and 618,162, [both in Group V], are referred to.ALSO:A traffic directing sign, (see Group X) comprises a layer containing a white or near-white natural or synthetic resin, in which the natural resin may be rosin, natural copal, an ester resin prepared from rosin, modified rosin or natural copal, or a metallic resinate, and a mineral filler, preferably titanium dioxide, either alone or mixed with white silica sand or carbonate of lime, the proportion of resin being preferably 20-30 per cent by weight of the material.  A small proportion of polyisobutylene or other synthetic rubber may be incorporated and the material may include a proportion of mica, finely divided glass, aluminium powder or asbestos. Specifications 556,935, 586,594, 586,595, 598,330, [all in Group XX], 598,696 and 618,162 are referred to.
Patent GB-544746-A (GB)
Title: Improvements in or relating to electrical carrier wave signalling systems
IPC: H04J1/00
Filed: 1940-10-24
Abstract: 544,746. Two-way transmission. STANDARD TELEPHONES & CABLES, Ltd., and FAIRLEY,. F. Oct. 24, 1940, No. 15653. [Class 40 (iv)] In a carrier system, a station, Fig. 1, having separate modulating and de-modulating paths M, DM for transmitting and receiving the alternate side-bands of the same carrier frequency co-operates with a second station, 'Fig. 2, provided with a combined modulatordemodulator MD, the carrier frequency being supplied from the first station. The line currents therefore consist of one side-band in one direction and both side-bands in the other direction. In order that the first station may work in conjunction with another station of the same kind, switching means may be provided for changing the filters BF, TDF, RDF in order to transmit either the upper or lower side-band and to receive the other one, and for transmitting or suppressing the carrier. In such an arrangement, a station of the kind shown in Fig. 2 may be connected in shunt at an intermediate point of the line, being supplied with the carrier from the nearer terminal station. At the other terminal station, it may sometimes be preferable to switch out the oscillator O and to amplify the carrier received over the line. Specification 427,605 is referred to.
Patent GB-200496-A (GB)
Title: Improvements in or relating to power transmission mechanism
IPC: F16H1/46
Filed: 1923-06-18
Abstract: 200,496. Gamot FrÞres. July 8, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Epicyclic gearing. - Toothed reducing-gearing which will not overhaul and is specially adapted for electrically - driven winches comprises planet gears W, V turning together on an axle a in a planet carrier B and meshing respectively with a fixed gear T and a gear U on the driven shaft R. The gears U, T may be of same diameter and differ bv one tooth only. The carrier B may be driven directly by the driving- shaft M, or a gear P on the shaft M may engage a third gear secured to the pair V, W. In the arrangement shown, the carrier B is driven at reduced speed by a pair Q, H which it carries driven from the gear P and running round on a fixed annular track S.
Patent GB-648367-A (GB)
Title: Improvements in and relating to electric detector of vapours and the like
IPC: G01N27/70
Filed: 1948-06-14
Abstract: 648,367. Determining physical qualities of materials. BRITISH THOMSON-HOUSTON CO., Ltd. June 14, 1948, No. 15957. Convention date, June 14, 1947. [Class 37] [Also in Group XL (a)] Apparatus for detecting the presence of certain substances in a gas comprises means for bringing the gas into contact with a positively charged heated electrode, whereby positive ions are produced and collected by a negatively-charged electrode, giving a current indicative of the concentration of the substance. Certain substances, e.g. the halogens, require the presence of a sensitizing material to allow the formation of positive ions, which material can be controllably heated independently of the positive electrode. In a " direct action " detector (Fig. 1) the gas to be examined is drawn between two platinum cylinders 8, 9, the latter being heated by a filament 11 which may be supported on an alumina cylinder 12. A positive potential is applied to electrode 9, and the ion current measured by a meter 16, the potential of electrode 9 being sufficiently high to cause the ion current to be saturated. The initial impurities in the alumina cylinder 12 may be used as the sensitizing materials where required, or alternatively, the cylinder may be made of an alkali metal glass. In an " indirect action " detector (Fig. 2), i.e. one essentially requiring a sensitizing material, two platinum filaments 25, 26 are employed, the inner filament 26 being wound on a cylinder of sensitizing, material 27. The current through each filament is separately controllable, and the ion current between them is measured by a meter 43, or by a ballistic galvanometer, if the H.T. is made intermittent by switch 44.
Patent GB-690233-A (GB)
Title: An improved toasting device
Inventor: NUTBROWN THOMAS MANBY
IPC: A47J37/06
Filed: 1950-06-27
Abstract: 690,233. Toasting device. NUTBROWN, Ltd., T. M. Sept. 27, 1951 [June 27, 1950], No. 15992/50. Class 28 (i). A toasting device comprises a pair of saucerlike elements a', a<SP>2</SP>, which fit together to form a hollow box, each having a handle b', b<SP>2</SP> overlying its back, the handles being hinged together. As shown, the elements a', a<SP>2</SP> are metal pressings having flanges f<SP>1</SP>, f<SP>2</SP>, flange f' fitting over flange f<SP>2</SP>. Handles b<SP>1</SP>, b<SP>2</SP> are steel wire, whose ends are flattened, cranked and pivoted together at c, and which have flattened part c<SP>1</SP>, c<SP>2</SP> at which they are riveted to elements a<SP>1</SP>, a<SP>2</SP>.