baber/WOPTO huggingface dataset:
Patent GB-143351-A (GB)
Title: Improvements in apparatus for boiling water at pre-arranged times and for similar purposes
IPC: H05B1/02
Filed: 1919-04-02
Abstract: 143,351. Smith, J. A. Manners-. April 2, 1919. Electric stoves.-In apparatus for boiling water electrically at prearranged times, the movements of a spring-actuated rotary switch are controlled by two stops, one of which is operated by a clock to allow the switch to close the heating-circuit, and the other is operated by movement of a kettle when the water boils, to allow the switch to open the circuit; an alarm is also provided. As shown in Figs. 1 and 3, the switch f, actuated by a spring f<1>, has a contact f<4> and a projection f<2>, the edge of which engages with a catch g, which is released by a clock through a rod j<1>, and allows the switch to turn, so that the contact f<4> bridges two fixed contacts f<3> to close the circuit of a heater in the kettle a. The switch is held in the closed position by the engagement of the projection f<2> with a second stop h mounted on arms c<2> carrying a platform c and a counterbalance weight e. The water, when boiling, siphons out through a tube b, and the consequent movement of the platform causes the catch h to release the switch, which then rotates in the same direction as before and opens the circuit. As shown in Fig. 4, at the second movement of the switch, the projection f<2> engages with and moves one end of a lever m<2> and releases the other end m, which is forked, from engagement with the bell hammer of an alarm; or an electric bell may be used. A stop k is then withdrawn by hand from the projection f<2> and allows a small movement of the switch and lever m so as to lock the bell hammer by means of the fork. An additional stop may be provided to prevent the spring f<1> exerting pressure on the hammer. The switch is reset by turning in the reverse direction, thereby rewinding the spring. The stops may be arranged as an escapement. In a modified arrangement, the platform is arranged directly over the switch. An additional switch may be provided which is closed by movement of the counterweight. Specification 28116/10, [Class 129, Tea &c.], is referred to.
Patent GB-484249-A (GB)
Title: Improvements in or relating to lubricating oils
Filed: 1937-03-22
Abstract: A lubricating oil consists of a solution of mineral oil in castor oil stabilized by the addition of a small percentage of triethanolamine.
Patent GB-195400-A (GB)
Title: Improved process of separating constituents of mixtures of gases and vapours
IPC: B01D53/06
Filed: 1923-03-24
Abstract: In the process of the parent Specification in which a gaseous mixture is separated into its components by treatment with successive moving layers of activated charcoal, the course of the separation is controlled by the use of charcoal layers of different absorptive capacities instead of, or in addition to, by varying the rate of movement of the layers, which may be stationary.  Generally the mixture is treated with layers of successively increasing absorptive capacity, but layers of lower capacity may be interposed between layers of higher capacity, which may be maintained in motion while the layers of lower capacity remain stationary.
Patent GB-331477-A (GB)
Title: Improvements in and relating to gramophones
IPC: G03B31/00
Filed: 1929-08-08
Abstract: 331,477. Roberts, J. H. T. Aug. 8, 1929. Divided on 331,267. Driving; turntables; sound-reproducing apparatus associated with kinematographs. - Means for running a gramophone in synchronism with a kinematograph or for driving the gramophone from an external device, such as an electric motor, consists of a horizontal record-carrying disc c provided with gearing g, h mounted below the disc and operatively connected with a shaft j which is linked with the kinematograph or other external device, such means being adapted to be mounted upon a gramophone turntable a. The gears g, h may be disposed between two discs c, d, the lower disc d being mounted on the turntable and adapted to engage the spindle b. If desired, the two discs may be rigidly connected by a solid member e on which the gear wheel g is mounted. The gear wheel h is attached to the shaft j which rotates within a tube k connected with a box m enclosing the gear wheels g, h. The member e has a projection constituting the record-engaging spindle. In this construction, the external device referred to above may be an electric motor connected with the shaft j so as to assist the power of the gramophone machine. In an alternative construction, the upper disc c, member e, and gear wheel g, are integrally connected and rotate independently of the lower disc d and turntable, which latter parts may then remain stationary while the other parts and record on the disc c are rotated from an external source of power. The upper surface of the disc c and the lower surface of the disc d may be covered with felt &c. The Provisional Specification describes the lower disc as constituted by the supplementary turntable described in Specification 331,242.
Patent GB-1196984-A (GB)
Title: Improvements in or relating to the Prepation of 17alpha-Hydroperoxy and 17alpha-Hydroxy Steroids
IPC: C07C/
Filed: 1968-02-21
Abstract: 1,196,984. Preparation of 17α-hydroperoxy and 17α-hydroxy steroids. UPJOHN CO. 21 Feb., 1968 [16 March, 1967], No. 8469/68. Heading C2U. A 17α-hydroperoxy group is introduced into a 20-keto pregnane by treating the pregnane with an alkali metal tertiary alkoxide in a tertiary alkanol and a polar aprotic solvent and oxygenating in the same solution the 17,20-enolate thus-obtained at a temperature below -10 C. If desired, the 17α-hydroperoxide thus obtained may then be reduced with a trialkylphosphite (including triphenyl and tribenzyl phosphites) to obtain the corresponding 17α-hydroxy-20-keto steroid. The preferred solvent is tetrahydrofuran, and the volume of solvent to the volume of alkanol can range from 2/3 to 4 times. The alkoxide is preferably used in an amount of 1À1 to 2.5 equivalents per equivalent of steroid. Labile ketone functions other than at C 20  are protected, e.g. by enol-ether formation, during the process and subsequently released. The preparation of 17α- hydroperoxy- and 17α-hydroxy-progesterone 3- methyl enol ethers; 11α,17α-dihydroxyprogesterone via the 3-ethyl enol ethers; and 17α-hydroxypregnenolone is described. Specification 898,093 is referred to.
Patent GB-869261-A (GB)
Title: Improvements in or relating to flame-throwers
IPC: F41H9/02
Filed: 1958-03-17
Abstract: 869,261. Flame-throwers. MAUSER-WERKE A. G. March 17, 1958 [March 16, 1957], No. 8500/58. Class 119. A flame thrower for providing a single burst comprises a cylindrical container 10 Fig. 1 for the liquid charge 18 which is ejected through a nozzle 11a by a piston 19 actuated by a propellent charge 21 in the base of the container. The charge 21 is ignited by a striker pin (not shown) actuated, by a firing knob 15 and engaging a priming charge 22 in a tube 16 having firing passages 16c. The tube 16 extends through the container 10 to an apertured support plate 17 and conveys a jet of flame to a point near the nozzle 11a to ignite the liquid charge. A safety cap 13 is removed from the nozzle before firing and the closure plug 12 is ejected by the fluid. In a modification a separate priming charge 106, Fig. 5 for igniting the fluid is formed as a closure plug in the nozzle 11a and is set off by a separate striker pin 104 which is actuated through a plunger 101 and rod 103 by the explosion of the propellent charge 102. The plunger 101 slides within a cylinder 100 containing the propellent charge and opens ports 100a which allow the escape of propellent gas to the piston 19. In a further modification the igniting cartridge is inserted in the forward end of the tube 16 behind a plug in the nozzle.
Patent GB-1143111-A (GB)
Title: Improvements in or relating to a loom
IPC: D03D49/58
Filed: 1966-02-28
Abstract: 1,143,111. Shuttleless loom. A. E. MOESSINGER. 28 Feb., 1966 [1 March, 1965; 9 April, 1965], No. 8651/66. Heading D1E. In a gripper shuttle loom a shuttle feeler 9 is located in the shed and must be moved by the shuttle to prevent the loom stopping, failure of the gripper shuttle to reach the switch operates a thyratron controlled stop motion. A similarly acting feeler 28 is provided in the shuttle box to stop the loom if the gripper shuttle is incorrectly boxed. Fig. 6 shows the weft 111 before beat up by the comb 102. The weft is held by a suction tube 108 and pulled back. A weft feeler stop motion 112 is provided to detect the wefts presence at beatup and yarn cutters 115 and a suction tube 114 to remove the weft end are provided near the fell. The nozzle 110 is not mounted on the slay and a guide 113 is provided to push the weft away from it at beat up. In a modification the nozzle 110 is replaced by a fan shaped nozzle. The thyrotrons in the control circuit may be replaced by relays.
Patent GB-273785-A (GB)
Title: Improvements in drying machines for loose textile yarns and fabrics and other materials
IPC: F26B13/10
Filed: 1927-01-31
Abstract: 273,785. Wood, T. E., and Heymann, H. Jan. 31, 1927. Endless-band conveyers, articles carried by.- The yarns &c. to be dried are supported in hank form upon bars 3 which are conveyed through the drying chamber by endless chains disposed at the sides of the chamber, heated air being circulated continuously upwardly through the chamber by a fan 15. The suction side of the fan communicates with a space 12 at the top of the chamber, while the pressure side communicates through a heater 16 and vertical side ducts with a space 20 at the base of the chamber, the spaces 12, 20 being separated from the drying space by perforated plates 13, 21.
Patent GB-750467-A (GB)
Title: Improvements in or relating to card filing devices
IPC: B42F17/02
Filed: 1954-03-25
Abstract: 750,467. Filing papers. ROSS, H. H. Jan. 13, 1955 [March 25 1954], No. 8712/54. Class 146(1) A division member for a stack of cards in a vertical filing tray 5 comprises a plate 9 to extend fully across the tray, a lug 12 projecting from one side of the plate 9 to enter a slot 7 in the side wall 10 of the tray and either a downwardly directed strip 14 to engage the same wall 10 or an upwardly directed strip 13 to engage the opposite side wall 11 of the tray. As shown, both upwardly and downwardly directed strips 13 and 14 are provided, both normal to the plate 9, and the lug 12 extends only part way along the side edge. The tray 5 has an outwardly directed flange 6 on the side wall 10 and the wall 10 and flange 6 have a series of slots 7 at spaced intervals extending parallel to each other towards the bottom 8 of the tray. Each plate 9 has a projecting ear 15 downwardly inclined and adapted to carry an indicating tab relating to the group of cards below. In the topmost group an upstanding plate 16 is provided for an indicating tab relating thereto and to the general subject matter of the cards in the tray. The ears 15 may be bent at different angles according to the position relative to the user's eyes and, where bent at almost a right angle to the plate, may be carried on an extension 17 so that cards may be more easily removed from beneath. According to the Provisional Specification, the upstanding strip 13 is at an obtuse angle, of about 95 degrees, to the plate 9.
Patent GB-1461916-A (GB)
Title: Vehicle with retractable guard
IPC: B66F9/075
Filed: 1974-02-26
Abstract: 1461916 Vehicle safety devices CROWN CONTROLS CORP 26 Feb 1974 [26 Feb 1973 7 Feb 1974] 8721/74 Heading B7B A fork lift truck is provided with an overhead guard 118 which is movable to a stowed substantially upright position in front of the operator. The front corners of the guard are pivoted to uprights 122, 123 telescopically received in lower uprights 119, 120, the uprights being telescoped by an hydraulic ram assembly 132, 134. The rear of the guard is mounted by pivotally interconnected members 124, 126 which cause the rear edge of the guard to pivot upwardly about the front edge as the front uprights are telescoped. Each upright 122, 123 carries a chain 144 which meshes with a respective sprocket 138 carried by a shaft 136 mounted on uprights 119, 120. An electrical circuit for controlling the hydraulic ram assembly is provided (Fig. 6, not shown), the circuit including solenoid control valves and a pressure sensitive switch (76) which opens to shut off pressure supply when the ram reaches the end stroke positions. Apparatus is provided for controlling the operation of the fork 150 and guard so that the guard cannot be lowered when the fork is above a given height and so that the fork cannot be raised above a predetermined height when the guard is lowered. A control circuit, Fig. 10, includes a switch 164 on upright 119 which is opened as upright 122 is lowered and a switch 152 on the fork mast which opens when the fork is raised above a predetermined height. With both the fork and guard lowered switches 152 and 164 are respectively closed and opened and a relay 178 is energized to close relays RC1, RC2. To raise the guard a selector switch 174 is moved to the left actuating a guard raise solenoid 184 and allowing hydraulic fluid to flow through a valve to the hydraulic ram assembly. When the guard is raised pressure in the ram assembly opens pressure switch 176 to de-energize solenoid 184. The fork may now be raised by closing switch 186 energizing a valve controlled by solenoid 188 and a lift pump solenoid 192 connected to switches 152, 164. As the fork goes above a predetermined height switch 152 opens but solenoid 192 remains energized since switch 164 is closed with the guard raised. With both fork and guard raised switches 152, 164 are respectively open and closed hence the guard cannot be lowered since solenoid 196 cannot be energized until the fork is lowered to close 152. The fork may be operated whilst switch 164 remains closed. When the guard is lowered switch 164 opens and the fork may only be raised to the height at which switch 152 opens.
Patent GB-541242-A (GB)
Title: Improvements relating to reinforced-concrete structures
IPC: E04G13/02
Filed: 1940-05-15
Abstract: 541,242. Casting beams and pillars in situ. HOLE, E. R., and TRUSSED CONCRETE STEEL CO., Ltd. May 15, 1940, No. 8722. [Class 20 (ii)] Pillars and beams are cast in situ by erecting a skeleton framework support, lining the support with precast slabs, or other facing material, filling between the slabs with concrete, and, after setting, removing the supporting framework. For a pillar the framework is built up of angle iron uprights 1 disposed at the corners with their flanges facing inwardly and supported at intervals by adjustable transverse members 3 of angle or T-bar section, formed of bars at 2 to the uprights and notched or slotted at their other ends, adjustably, to engage either pins 5 on the opposite uprights, or locking pins 8 passed through apertures in the turned over ends of other bars. The ends of the transverse frame bars instead of being pivoted may be welded to the uprights. The panels 12 are disposed between the uprights on the inner side of the flanges so as to straddle the spaces between opposed uprights and the corners may be clipped together by clips 13, or plates wired to the uprights. The inside surfaces of the panels may be ribbed to bind with the concrete and the edges may be bevelled. The pillar is cast in successive courses, each course being stamped. The shuttering for a joint between a column and beams is shown in Figs 6 and 7 and comprises spaced uprights 20 of channel section, secured by bolts 18 which pass into apertures 17 cast in opposite faces at the top of the column and joined in spaced relationship by upper and lower transverse bars 36 on opposite sides of the column. The upper bars support the lower angles, 22, 22A of the beam skeleton supports, while the upper angles 24A which define the widths of the beams in one transverse direction are carried by the projecting ends of the upper angles 24 which define the widths of the beam in the other transverse direction. The angle bar for those beams are inter connected on each side by vertical struts 25 which are interconnected in turn by further horizontal angle bars 27 and screw bolts and the lower angle bars for these beams are further supported by inclined struts 23 projecting from the upright channel - section bars. In a modification for cases in which the width of the beams is not greatly less than the width of the column, the upper angle bars for the beams are supported directly by the upper ends of the channel uprights, the lower angle bars being directly connected at their ends to these uprights. The precast panels 29, 30 are disposed to straddle the spaces between the angle bars and the concrete forming the beams is placed between the panels.
Patent GB-101523-A (GB)
Title: Improved Means for Controlling and Regulating Electric Motors.
IPC: H02P7/288
Filed: 1916-01-28
Abstract: 101,523. Igranic Electric Co., (Cutler- Hammer Manufacturing Co.). Jan. 28, 1916. Systems for continuous-current motors only; master control systems.-A number of contactors for controlling a motor have series operating and lock-out coils 6, 8. Shunt coils 10 are arranged to assist the series lock-out coils, and their connexions are completed through a hand-operated controller 11. The contactors 3, 5 are provided with shunt holding-coils 9 subject to the controller 11. If the controller is moved to its last position e, the main switch 1 closes and the contactors 2 - - 5 follow in sequence to cut out resistance, subject to the retaining action of the coils 8. When the contactor 3 closes, all the series windings on contactors 2, 3 are short-circuited. The contactor 2 opens, but the contactor 3 is held closed by the shunt winding 9, the circuit of which is completed through the contacts 17, 17<1> of the controller. The contactors 4, 5 operate in the same way as the contactors 2, 3, so that at the end of the starting operation, the contactors 3, 5 are closed and the contactors 2, 4 are open. By setting the controller to an intermediate position, the closure of the contactors may be stopped at any desired point, owing to the energization of the appropriate shunt lock-out coil 10.
Patent GB-651291-A (GB)
Title: Improvements relating to thermionic valve oscillators
IPC: H03B5/10
Filed: 1948-03-25
Abstract: 651,291. Converting. WILLIAMS, R. STUART-, and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 25, 1948, No. 8766. [Class 38 (ii)] [Also in Group XL (c)] In order to obtain a constant output from a multigrid valve oscillator the feed-back is applied to an outer grid and the control grid is taken to a tapping point on a potential divider R1, R2 connected between a source of reference potential RP and a point whose potential follows variations in the amplitude of oscillation. In the embodiment shown the back-coupling is between anode and suppressor grid, the resistance R1 being returned to the suppressor circuit in which a D.C. potential, proportional to the strength of oscillation is produced by self-rectification. In other embodiments, Figs. 2, 3 (not shown), the back-coupling is respectively between screen and suppressor grid and between screen and anode; in the latter arrangement the suppressor grid is strapped to the anode and the resistance R1 returned to the anode circuit. The arrangement is more particularly intended for generating a stabilized negative D.C. potential, which is obtained at the terminal O.
Patent GB-197799-A (GB)
Title: Improvements in microphones
IPC: H04R21/02
Filed: 1922-03-27
Abstract: 197,799. Young, E. D. March 27, 1922. Microphones.-The conductive particles are enclosed between two electrodes b, e attached to diaphragms i, h respectively, the diaphragms being strained so that the cup a is under tension or compression. The cup a has a mica diaphragm secured to the diaphragm h by a screw-threaded terminal stem d faced with an electrode e, and the second diaphragm i is secured to the back of the cup a by a rear terminal stem f and a nut l. One diaphragm only may be subjected to the sound impulses.
Patent GB-613460-A (GB)
Title: Improvements relating to oil seals or the like
IPC: F16J15/32
Filed: 1946-03-21
Abstract: 613,460. Stuffing-box substitutes. TRIST & CO., Ltd., R., and WILLIAMS, H. S. March 21, 1946, No. 8815. [Class 122 (v)] A method of securing a flexible sealing ring 12 in a metal casing 11 of an oil seal or like device in which the casing 11 has an annular channel or groove 14. An edge 15 of the sealing ring is introduced into the channel, and the deformable wall 16 is bent or deformed towards the rigid wall 17 to clamp the edge of the sealing ring. The ring 12 may be bent into a frusto-conical shape by making the deformable wall 16 deeper than the rigid wall so that the free edge of the deformable wall forms a rigid lip bearing against the sealing ring 12. As an alternative, a resilient backing ring 29 may be introduced into a correspondingly enlarged groove 30, Fig. 5. Two sealing rings 25 and 26 may be secured in a casing 24 with or without backing rings by two deformable walls 27 and 28, Fig. 6, for maintaining a seal against the surface of a cylindrical bore in a rotary member. Specification 602,746 is referred to.
Patent GB-1070925-A (GB)
Title: Improvements in the treatment of polyacrylonitrile fibre fabrics
Inventor: BLEARS MICHAEL JOHN
IPC: D06M13/402
Filed: 1963-03-06
Abstract: A fabric exhibiting a seer sucker or other effect is produced by applying to a part only of the area of a fabric containing at least 25% by weight of polyacrylonitrile fibres a printing paste which contains a cyanoalkyl amide, e.g. bis-cyano ethyl formamide, the proportion of cyano alkyl amide in the paste and the quantity p  of the paste applied to the fabric being so related as to result in 10-60% by weight of the amide based on the total weight of the fabric being applied to the printed areas of the fabric and then exposing the printed areas to steam for a time sufficient to allow the printed areas to shrink.  The fibres are made from homopolymers of acrylonitrile or copolymers containing at least 80% by weight of acrylonitrile with other monomers, e.g. styrene, methyl acrylate, itaconic acid, methallyl sulphonic acid or its salts, vinyl acetate or vinyl pyridine.  The fabric treated is preferably of relative open construction, e.g. one having a cover factor of the order of 10 units.  The printing paste, which may also contain Nafka crystal gum (the word Nafka is a Trade Mark), may be applied in the form of stripes, a check pattern or circular areas displaced regularly or randomly over the fabric. The fabric may be steamed for 5-60 minutes to allow the treated areas to shrink by 10-20%.  The fabrics may then be scoured, subjected to a relaxing treatment, e.g. in boiling water, and treated with a softening agent.  A printing to colour the fabric may be carried out simultaneously with the application of the amide or as a second operation which may precede the steaming operation.