baber/WOPTO huggingface dataset:
Patent GB-943434-A (GB)
Title: The production of yarns
Inventor: GUTHRIE JOHN CHARLES
IPC: D01F11/02
Filed: 1961-06-28
Abstract: In the production of bulked yarn, viscose rayon e.g. freshly spun or "never-dried" fibres having a wet extensibility of at least 30% are subjected to stretching by at least 20% while wet, the stretched fibre is dried while still under tension and 20-40% thereof (as continuous filaments or staple fibres) is combined in a mixed fibre yarn (which may be plied) with 80-60% of fibre having a lower potential shrinkage e.g. 0-5%.  The yarn is bulked by immersing it in, or spraying with, an aqueous fluid e.g. water at 80-100 DEG C. or steam, to cause and allow differential fibre-shrinkage effects.  The low shrinkage fibres may be of regenerated cellulose (viscose), cellulose acetate, polyethylene terephthalate, polyacrylonitrile, polyamide, cotton, flax, wool or regenerated protein.
Patent GB-885775-A (GB)
Title: Improvements in and relating to electrical translators
Inventor: FREEDMAN ARYE LEIB
IPC: H03K17/81
Filed: 1957-07-23
Abstract: 885,775. Codetranslators. ERICSSON TELEPHONES Ltd. April 15, 1958 [July 23, 1957], No. 23358/57. Class 40 (1). [Also in Group XXXIX] A translator of the saturable-reactor matrix type is arranged to prevent the occurrence of spurious impulses which can occur due to transformer effect in a large number of cores. Inputs on one of terminals a 0 -a 9  and one of b 0 -b 9  switch one of cores C 00 -C 99  to produce an output pulse on the associated terminal e 00 -e 99 . These terminals are the first input terminals of a second array of cores f 000 -f 999  which has a further set of input terminals d 0 -d 9 , one of which is pulsed so that only one of the cores is switched. Each of the cores of the second array has three output windings connected to terminals g 0 -g 9 , h 0 -h 9 , j 0 -j 9 , according to the desired translational code. As a further guard against transformer effect the impulses applied to the d terminals may be longer than those applied to the a and b terminals. Reset and/or inhibit windings are also provided. The system may be used for translation from the decimal to the binary system.
Patent GB-998713-A (GB)
Title: Improvements in or relating to typesetting apparatus
IPC: B41B27/28
Filed: 1961-06-28
Abstract: 998,713. Strip-perforating machines; justifying type. HARRIS-INTERTYPE CORPORATION. June 28, 1961 [June 30, 1960 (2)], No. 23458/61. Drawings to Specification. Heading B6W. Apparatus for preparing a coded record for controlling a phototypecomposing machine comprises a selector counter, means which preset the counter to a code number representing a selected character in a line of composition, means operative with the counter to determine from the character selection code a further code number representing the unit width of the selected character relative to the other characters, means which reset the counter to the further code number upon determination thereof, an accumulator which receives width information and maintains a running total thereof representing the space in a line of composition to be occupied by the selected characters, and means which transfer such width information from the counter into the accumulator. The construction of the apparatus is similar to that described in Specification 989,626. Specifications 768,374, 891,142 and 912,201 also are referred to.
Patent GB-964881-A (GB)
Title: Improvements in or relating to electrostatic records
Inventor: SCHMIEDEL ULRICH
IPC: G03G5/022
Filed: 1960-05-17
Abstract: 964,881. Optical/thermoplastic record/ erase processes. GEVAERT PHOTO-PRODUCTEN N. V. May 17,1961 [May 7, 1960], No. 23486/63. Divided out of 964, 880. Heading G5R. [Also in Division H1] A thermoplastic recording process utilizing a photoconductive record tape layer,first charges the layer by corona discharge means, modulates the charge according to a pattern of electromagnetic radiation, which causes local discharging, and the layer is then developed into a permanent record by heating to the melting point, the charges causing local deformation. The layer is erased by heating it to the melting point in the presence of light. The preferred form of tape comprises a conductive base carrying a layer of polypropenylcarbazole,prepared as in Specification 964,875, ester gum and methylene chloride,the dried layer being 1¢- 2 Á thick. Other suitable materials are described in Specifications 964,871, 964,875, and 964,877 and 964,879. As compared with the previous thermoplastic recording processes (Glenn, J. Appl. Phys. 30 (1959) pp. 1870-73 is referred to) the need for any form of vacuum enclosure is eliminated. Playback is by conventional optical means.
Patent GB-388378-A (GB)
Title: Improvements in or relating to collapsible stairways or ladders
IPC: E04F11/06
Filed: 1931-08-21
Abstract: 388,378. Loft ladders. GORHAM, P. H., 5, King William Street, Greenwich, London. Aug. 21, 1931, No. 23559. [Class 20 (ii).] A collapsable loft ladder comprises lazy-tongs structures at the sides and back and is hinged to the lining of the trapdoor opening independently of the trapdoor, the latter being biased to the closed position and being arranged for movement to that position with the ladder upon it when the ladder is contracted. According to one construction, the ladder comprises side lazytongs 15, Fig. 4, and back lazytongs 9b, and is hinged to a bracket 33 fixed to the side 34 of the trap opening. The treads 7 are supported on brackets 16 attached to adjacent pivots of the lazy-tongs 15 on each side of the ladder. The centre pins of the lazy-tongs 9b are attached to cross-bars 8 which are connected at each end to the pins 35 of the side lazy-tongs. In a modified construction, each tread 7 is supported by a pair of bars 4, 6, Fig. 2, which extend across the width of the ladder and are connected respectively to the pins 3, 5 of the side lazy-tongs. The ladder is braced, when extended, by pairs of pivoted links 10, 11, which are connected to the side rails as shown and provided with stop pins 12 to limit their opening ; or, alternatively, are connected in a similar manner to the back lazy-tongs 9. To counterbalance the weight of the ladder, a cord 24, Fig. 6, is attached to the foot thereof and passes over a pulley 25 on a shaft 26, the counterweight being attached to a cord 28 which passes around a second pulley 27 on the shaft 26. To limit the extension of the ladder, a flat metal strip is threaded between the links of the side or back lazy-tongs, the strip being of sufficient width as to form an abutment for the pins connecting the links of the lazytongs. The trap door, in the form shown, comprises two hinged flaps 18, 19 which are interconnected by links 20, 21, 22. A weight 23 tends always to return the door to the closed position, in which position it is held by a latch 32. A rope passing around the shaft 26 may be utilized for raising or lowering the ladder.
Patent GB-186899-A (GB)
Title: Improved manufacture of methane
IPC: C07C1/10
Filed: 1922-08-30
Abstract: Methane is produced by passing a mixture of water vapour with carbon monoxide or a gas, such as water-gas, containing carbon monoxide over two nickel contacts or sets of contacts in series, the water vapour being removed from the mixture between the two contacts.  After elimination of carbon dioxide, the product consists of pure methane or methane admixed with a little hydrogen.  For the second contact, nickel obtained from calcined nickel nitrate and maintained at a temperature of 350-400 DEG  C. may be used; preferably, however, the nickel is prepared from nickel carbonate or organic nickel compounds, and is employed at a temperature of about 260 DEG -300 DEG  C.
Patent GB-1210479-A (GB)
Title: Process for separation of hydrocarbons from hydrocarbon mixtures
Inventor: WEHNER KLAUS
IPC: C07C7/13
Filed: 1969-05-08
Abstract: 1,210,479. Separating hydrocarbons. LEUNAWERKE "WALTER ULBRICHT" VEB. 8 May, 1969, No. 23603/69. Addition to 1,156,499. Heading C5E. In a process for the separation of hydrocarbons from hydrocarbon mixtures by adsorption on natural and/or synthetic molecular sieves, followed by desorption and accompanied by a rinsing process if necessary, at a temperature above 250‹ C. in accordance with the parent Specification, water and/or water vapour is added to the gas mixture accompanying the throughput and/or to the mixture of ammonia and desorption product during the adsorption, the desorption and the rinsing, if any. A Type SA sieve may be used to isolate n-paraffins.
Patent GB-734603-A (GB)
Title: Improvements in or relating to valves more particularly for hydraulic shock absorbers
IPC: F16F9/34
Filed: 1952-09-22
Abstract: 734,603. Non-return valves. ARMSTRONG PATENTS CO., Ltd., [formerly ARMSTRONG'S PATENTS CO., Ltd.], and CHAMBERS, H. D. Sept. 10, 1953 [Sept. 22, 1952; Jan. 14, 1953], Nos: 23674/52 and 1074/53. Class 135. [Also in Group XXXII] A check or non-return valve which is particularly suitable for use in conjunction with the dependent anti-foam tube of the shock-absorber described in Specification 657,030, [Group XXXII], comprises a valve spindle 6 projecting from, fixed with respect to, and of smaller crosssectional area than the mouth of the tube, a valve spindle head 5 situated within the tube and fixedly connecting the spindle to the tube, a valve plate 9 slidable on the spindle, and adjustable elastic loading means, such as the spring 10 and the nut 11, disposed externally of the tube to maintain the plate seated against the end of the tube in the absence of abnormal pressure within the tube. The tube may be internally threaded to receive a threaded valve spindle head. As shown in Fig. 1, a valve spindle head 5 with arcuated cutaway parts and an enlarged portion 5a is " rolled " into the mouth of the tube 7. A bleed path 12 is provided adjacent the end of the tube or in the surface of the plate 9. In a further form, Fig. 5, the tube has its end 13A of reduced diameter and externally threaded to receive a threaded sleeve 14 the lower end of which forms the valve seat. The valve spindle head 15 is integral with the sleeve 14 and has a number of longitudinal holes 16.
Patent GB-287789-A (GB)
Title: Improvements in or relating to oil cooking stoves
IPC: F24C5/16
Filed: 1927-09-08
Abstract: 287,789. Latham, J. E. Sept. 8, 1927. No Patent granted (Sealing fee not paid). Ovens. - In an oven having an opening 9 in the bottom, beneath which an oil burner is placed, and a ventilating opening 2 in the upper part of a wall, the latter opening is controlled by a circular shutter 3 angularly rotatable about a point outside its periphery. In the construction shown the shutter is operated by a rod 7 passing from back to front of the oven, and the movement is limited by a pin 8 on the shutter which projects into the opening 2. A baffle plate 10 covers the opening 9 in the bottom of the oven.
Patent GB-860467-A (GB)
Title: Metal window frames
Inventor: SMITH HAROLD DESMOND
IPC: E06B1/36
Filed: 1957-07-26
Abstract: 860,467. Windows. HOPE & SONS Ltd., H. Oct. 13, 1958 [July 26, 1957], No. 23711/57. Class 20(3) In a metal window frame provided with a rectangular frame for accommodating a hinged or pivoted window, and an incomplete frame for receiving fixed glazing, the free ends of the incomplete frame being secured to the rectangular frame, the incomplete frame is constructed from bars of T section having end portions shaped to form tongue pieces e which overlap and which are secured to parts of the side members of the rectangular frame so as to form lap joints therewith, the end portions also being shaped to form shoulders f, g, which abut closely against edge. portions of the rectangular frame. The T section bars of the incomplete frame may be thickened by a flange h and the bars of the rectangular frame may be of Z section.
Patent GB-188440-A (GB)
Title: A device for lifting manure, gravel, or the like
IPC: B62B1/14
Filed: 1921-09-06
Abstract: 188,440. Bevan, D. Sept. 6, 1921. Tip-buckets.-A tip-bucket 5 for lifting manure, gravel, &c., is pivoted at 4 in its supporting frame 1 so as to tip forwards when released, and is provided with prongs 6 for use with manure, and with a shoe 7 which can be bolted beneath the prongs for use with gravel, coal, sand, &c. A weighted latch 17 on the bucket engages a, catch 15 on the frame 1 and is released by a cord 22. In a modification, a forked latch is provided at each side of the bucket engaging the frame 1 and is knocked aside to release the bucket. The bucket or the frame 1 may be provided with wheels 9 and detachable handles 8. The rear wheels may be secured to the bucket at various heights, or they may be dispensed with. When the handles are secured to the bucket they may be fixed at various inclinations.
Patent GB-498537-A (GB)
Title: A novel or improved paint
IPC: B05D5/06
Filed: 1937-08-31
Abstract: A method of preparing a mottled paint which will give a variegated pattern of different colours in one coat, consists in suspending in the body of a separating liquid, two or more liquid paints which may have similar pigment carriers.  According to one example, a separating liquid contains casein, water, ammonia, alcohol, acetone, linseed oil and formaldehyde, and four differently coloured enamels are added thereto to produce a mottled liquid enamel.  The separating liquid itself may be coloured, thereby introducing an additional colour to the final variegated effect obtained.  For certain casein paints, a mixture of butyl alcohol and formaldehyde forms a suitable separating liquid.  Volatile liquids may be added to render the paint quick drying.
Patent GB-793564-A (GB)
Title: Snap action electric switches
IPC: H01H61/06
Filed: 1955-08-19
Abstract: 793,564. Thermal switches. SIGNALSTAT CORPORATION. Aug. 19, 1955 [April 8, 1955], No. 23945/55. Class 38 (5). A snap-acting electric switch incorporates a resilient vane 10 described in Specification 761,713, [Group XXXII], and comprises an improvement on the switch disclosed in copending Specification 762,046, the improvement being constituted in that the moving contact 60 of the pair of auxiliary contacts 55, 60 controlling the pilot lamp PL is carried on a conductive spring arm 65 secured to the heat expansible ribbon 30 near the centre point thereof, such that when the contol switch 45 is closed and the ribbon 30 begins to heat up the contacts 55, 60 make before the contacts 25, 35 open and, due to the residual heat in the ribbon 30, stay made as long as the switch 45 is closed, the pilot lamp supply being controlled through the contacts 25, 35. The signal lamps SL-1, SL-2 and the pilot lamp PL flash together in synchronism.
Patent GB-170980-A (GB)
Title: Process of manufacturing electric insulators
IPC: H01B3/04
Filed: 1920-08-18
Abstract: 170,980. Bernard, P. J. H. Aug. 18, 1920. Wire and ribbon resistances, cored. - In the manufacture of electric insulators composed of a plurality of mica sheets 1, Fig. 3, pressed together facially on a supporting bar 10, the sheets are coated with gum or resin and subjected repeatedly to heat and end pressure so as to eliminate gases arising from said coating. The resultant solidified mass is then turned in a lathe to provide a continuous spiral groove 50, Fig. 6, to accommodate a resistance element.
Patent GB-1351248-A (GB)
Title: Apparatus for enabling microfilm to be evalueated
IPC: G03B21/11
Filed: 1971-04-19
Abstract: 1351248 Web-operated apparatus control AGFA-GEVAERT AG 19 April 1971 [14 March 1970] 24055/71 Heading G2E For use in a microfilm reader/printer a film 4 bearing marks 3, corresponding to each frame thereon, is advanced under the control of electric circuitry by means of which the viewing time of each frame is predetermined, but can be prolonged for the printing of a particular frame. As shown the circuit includes a bi-stable tripper 7 whose outputs 8, 9 emit stop and start signals respectively to a motor advancing the microfilm 4. The apparatus is started by closing the switch 14, which provides a signal to the tripper 7 so causing an output on 9. The film 4 advances until photo-cell 1 detects one of the marks 3 which causes an input to the tripper 7 and an output on 8 stopping the film advance. The photo-cell output signal is also received by delay circuit 10 which after a given period emits the signal via leads 19, 20, 21 to the device 7 and so restarts the film advance. The period of delay can be varied by potentiometer 11. A counter 12 registers the number of times an output from delay circuit 10 results. After a predetermined, adjustable number the counter 12 will not forward the delay circuit output. To produce an indefinite delay the switch 13 is opened, its opening being caused by either direct control or a linkage with switch 16 for operating the printing apparatus; movement of the film 4 during printing is therefore avoided. The apparatus is then restarted by closing switch 14 again.
Patent GB-803065-A (GB)
Title: Improvements in or relating to honeycomb panel and method of making same
Inventor: PAJAK THEODORE PETER
IPC: B21D47/00
Filed: 1955-08-20
Abstract: 803,065. Making airfoils &c. GLENN L. MARTIN CO. Aug. 20, 1955, No. 24058/55. Class 83 (2). [Also in Group VIII] In a laminated panel comprising a metal core 2 having open-ended cells, e.g. a honeycomb core, sandwiched between and united to two metal sheets 3 and 4, the core is crushed in areas where greater compressive strength is required, before or after its union with the metal sheets. The edges may be compressed to facilitate attachment of the panel to supports, e.g. riveting to a beam 5. Alternatively, the area around a circular opening in the panel may be crushed and reinforced by a metal ring secured by rivets, so that the panel may support a tube passing therethrough. The core may be tapered before crushing, e.g. to form the trailing edge of a thin wing airfoil. In this case the core may be crushed to the shape desired, and the upper and lower skins, constituted by a single metal sheet bent around the tapered edge, united to the core.
Patent GB-752614-A (GB)
Title: Arrangement for the step-by-step energisation of a directly working step-by-step switch with the aid of an impulse sender provided in common for several step-by-step switches
Inventor: KOPPE JOHANNES WILLEM
IPC: H01H67/06
Filed: 1954-08-18
Abstract: 752,614. Automatic exchange systems. STAATSBEDRIJF DER POSTERIJEN, TELEGRAFIE EN TELEFONIE. Aug. 18, 1954 [Aug. 22, 1953], No. 24087/54. Class 40 (4). A directly operated switch (i.e. one which advances on the attraction of its armature) driven from a common impulse source, is arranged to be pre-energized in a local circuit, the transfer of the operating circuit to the common impulse source being arranged so as to ensure that the magnet does not release during the transition. By this means partial movement of the switch by an incomplete impulse from the common source is avoided. Fig. 5 illustrates a finder-preselector link in which the invention is applied to the preselector. The link is seized by the operation of R over lead AN. R completes the driving circuit for the finder magnet DMF and P operates, when the calling line is found, to stop the switch and R releases slowly. During the slow release of R the preselector magnet DMIIVK receives a preliminary energization and makes its first step. When R releases the magnet is connected to the impulse source IG for further stepping. When the interrupter is supplying earth the rectifier SC and resistance R2 provide the magnet with sufficient current to hold it operated during the transit time of the r contact. This current is however insufficient to bring up the magnet from the unoperated state. Rectifier SC also prevents interference with other switches stepped over lead IG. Operation of the test relay T to a free outlet stops the switch. In a modification, Fig. 1, the drive magnet DM is connected to a make-before-break contact of relay R, being pre-energized over the direct earth, and subsequently by impulses from IG. A rectifier SC prevents disturbance of the common impulse source during the " dwell " period of the contacts. In a further modification use is made of a simple change-over contact whose transit time is less than the release time of the magnet.
Patent GB-1512494-A (GB)
Title: Method of and apparatus for bending thin glass sheets
IPC: C03B27/044
Filed: 1976-06-10
Abstract: 1512494 Bending thin glass LIBBEY-OWENSFORD CO 10 June 1976 [23 June 1975] 24134/76 Heading C1M A thin glass sheet S is heated in a furnace to soften it, conveyed horizontally between press members 30, 31 and bent to a desired curvature, and then conveyed to a tempering device, excessive heat loss (and consequent poor tempering) being prevented by applying supplemental heat to at least selected portions of the sheet while advancing the sheet between the press members, the supplemental heat supply being interrupted immediately before the press members are actuated. The upper press member 30 comprises an outline mould 42, and lower press 31 comprises a broken outline mould 60. Gas burners 70 provide the supplemental heating, these being actuated (e.g. by photoelectric detector) when the sheet begins to enter between the press members, and the heating being terminated when the sheet contacts stops 37 and the presses are actuated. Preferably, supplemental heat is applied only to the upper surface of the sheet.
Patent GB-296060-A (GB)
Title: Apparatus for electrolytically producing metal alloys
IPC: C25C1/24
Filed: 1928-08-22
Abstract: 296,060. Kelsen, E. Aug. 24, 1927, [Convention date]. Metals, depositing; electrodes, moving; cells; electrolytes, circulating and purifying. - A cathode 3 in the form of a cylinder or other surface of revolution is mounted so that opposite halves are surrounded by cells 1, 2 having apertures through which the electrode passes with very slight clearance. The cells contain soluble anodes 8, 9 and electrolytes suitable for the deposition of different metals so that on rotation of the cathode a succession of thin layers of the metals is deposited. Electrolyte escaping from the cells is collected in trays 4, 5 and returned by pumps 6. Filters may be incorporated in the trays or elsewhere in the circulating system.
Patent GB-337483-A (GB)
Title: Improvements in or relating to glazing or like bars
IPC: E04D3/08
Filed: 1929-08-08
Abstract: 337,483. Leaver, J. J. Aug. 8, 1929. Glazing.-A U-section glazing or like bar of the kind which spans between two supports, such as rafters, and supports the overlapping edges of two sheets of glass, is shaped so that the lower sheet is held between the flanges of an inverted U-section bar and the upper sheet is supported by spaced upturned tongues on the bar, which tongues are so disposed that the lower edge of the top sheet of glass overlaps the tongued edge of the U-section. A glazing bar a, Fig. 1, of metal or paper pulp sheet material is secured at b to adjacent rafters of a structure and is bent over to form a groove c which receives the upper edge of a sheet of glass. The lower edge of the top member of the bar a has spaced tongues d which receive the lower edge of an upper gdass pane. The said tongues are so disposed that the lower edge of the pane overlaps the lower edge e of the upper flange of the bar a. By this means capillary action is prevented. The upper edge of the lower sheet of glass may be held in the groove c by pressed out tongues or clips in the top flange. When the span between the supports is large, the glazing bar is made substantially of Z-section, as shown in Fig. 2.