baber/WOPTO huggingface dataset:
Patent GB-390181-A (GB)
Title: Improvements in absorption refrigerating machines
IPC: F25B15/10
Filed: 1931-07-27
Abstract: 390,181. Refrigerating. S€RNMARK, A. U., Gothenburg, Sweden. July 27, 1931, No. 21458. Convention date, July 28, 1930. [Class 29.] Absorption systems.-In a continuous-cycle system containing a pressure-equalizing auxiliary gas such as hydrogen lighter than the refrigerant and in which the evaporator is at a higher level than the absorber, the evaporation surfaces are substantially vertical and an unobstructed passage is provided for the refrigerant vapours flowing from the evaporator to the absorber so that these vapours flow through the auxiliary gas under the direct action of gravity and without diffusion. The evaporator and absorber may be separate or combined, and the refrigerant may consist of ether, methyl formate, methylene chloride, ethyl bromide, methylol or carbon disulphide, or mixtures of these. Dichlorhydrin or other organic substance may be used as absorbent. The generator may comprise a vessel divided into lower and upper compartments 5, 6 traversed by a flue for gases or by a tube 3 containing an electric heating element 4, and the liquor is raised through a " pumping " coil 9 from the lower to the upper chamber. The condenser 12 may be air or water cooled, and the liquefied refrigerant is delivered to the top of a combined. evaporator-absorber vessel 15 through an annular nozzle 17. The weak liquor after passage through a heat exchanger 23 is cooled in a coil 24 and is delivered through a spray pipe 25 to the lower part of the evaporator-absorber. A tube 18 with flared open ends extends through the evaporator-absorber and serves to prevent diffusion of the gases. The evaporation and absorption surfaces may be roughened, as by sand blasting, or may be covered with a porous material. The vessels mav be of various metals or of glass or quartz, and may be gilled. The Specification as open to inspection under Sect. 91 comprises also the following :- Various forms of gilled and corrugated evaporator and absorber vessels and a #-shaped combined evaporator and absorber are described. The middle part of the combined vessel may serve as a gas heat-exchanger, and the gas and liquor conduits may have throttle valves to control the flow of fluids. Propellers for circulating the gases and liquids in the system may be driven by the condensed refrigerant issuing through the nozzle in the evaporator, or by external or internal electric or magnetic forces, e.g. rotating magnetic fields. Various other organic media as refrigerants and absorbents are mentioned. This subject-matter does not appear in the Specification as accepted.
Patent GB-840637-A (GB)
Title: Control for the pitch stop of a variable-pitch, aircraft propeller
Inventor: ELLIOTT FREDERICK RALPH
IPC: B64C11/32
Filed: 1957-07-08
Abstract: 840,637. Variable pitch propellers. ARMSTRONG WHITWORTH AIRCRAFT Ltd., Sir W. G. June 25, 1958 [July 8, 1957], No. 21489/57. Class 114. A control system for the flight fine pitch (FFP) stop of a variable pitch aircraft propeller comprises a switch 22 arranged to operate the stop and to be actuated by a lever 3 which is so associated with a pilot operated engine-throttle lever 1 that when the latter is positioned for take-off, the FFP stop is moved to its operative position and is left there until the throttle lever has been adjusted for touch down, when the switch-actuating lever 3 is manually operated to move the FFP stop to its non-operative position. In Fig. 2, there are two banks of four throttle levers 1 with a lever 3 in each bank, all the levers pivoting on a common shaft 2, and the levers 3 being connected to each other and to the switch 22 via links 15, layshaft 17 and link 19. Each lever 3 has telescoping parts 5, 4, the latter having a pin 6 which travels in a guide 7. Fig. 2 shows levers 3 in the position in which the FFP stop is non-operative. When lever 3 is moved to the position in which the stop is operative, the pin 6 engages a fork 9 pivoting on a layshaft 10 and held in the position shown by a spring-loaded pin 13 carried by a latchplate, the lever then being pushed against the pin 13 causing the latter to disengage from the fork 9, whereupon the layshaft 10 and fork 9 are turned clockwise by a spring 11. The pin 6 enters the downwardly extending recess 8, the part 4 being telescopically moved on the part 5 towards the axis of the shaft 2 so that the free end of the lever 3 is no longer adjacent the ends of the throttle levers 1. When a pilot, after trimming throttle levers 1 for touch-down, extends parts 4 and 5 of the stop-operating lever 3 to move pin 6 to guide 7, fork 9 is turned anticlockwise to return to the position shown in Fig. 2, and continued movement of lever 3 to the position shown in the Figure results in movement of the FFP stop to its non-operative position.
Patent GB-927472-A (GB)
Title: High frequency tube apparatus
IPC: H01J23/00
Filed: 1959-07-02
Abstract: 927,472. Velocity-modulated tubes. VARIAN ASSOCIATES. July 2, 1959 [July 17, 1958], No. 21546/61. Divided out of 927,471. Class 39 (1). [Also in Group XL (b)] High - frequency velocity - modulation tube apparatus comprises a cavity resonator tuned by a movable member 13 which changes the reactive parameters of the resonator, a portion 20 of the movable member forming with a flange 22 on the drive shaft 21 of a coolant chamber through which water is circulated by means of helical pipes 23, 24 which may have the same or different diameters. The member 13 is a plate fixed to two thin side diaphragms 14 (only one shown) and carries capacity plates 15. Specifications 927,473 and 927,474 also are referred to.
Patent GB-217088-A (GB)
Abstract: 217,088. Llewellin, W. M. Aug. i, 1923. Factory and like time-rccorders, card type.- Consists in mounting the main operating lever pivotally for both horizontal and vertical movement for the purpose of selecting the columns on the card to be stamped and for effecting the actuation of the impression mechanism. The operating lever G is pivoted at H to a horizontal lever C pivoted at D in a bracket B extending from the front plate A of the machine casing. The lever C at its inner end is provided with a slot S with which engages a projection E on the card-holder F. The operating-lever carries a pawl for co-operation with a part M of the impression mechanism. The front plate A has a series of slots P - - P<3> and the operating lever G passes through a slot in a plate N slidably mounted on the slot A and which is adapted to be locked in one or other of the positions coincident with the slots P by means of a stop R and lock Q.
Patent GB-650943-A (GB)
Title: Production of aluminum and other similar metals
IPC: C22B21/00
Filed: 1947-08-07
Abstract: <PICT:0650943/III/1> <PICT:0650943/III/2> Aluminium and magnesium are recovered from refractory compounds containing them by operating an electric arc in an atmosphere of chlorine, bromine, iodine or fluorine, the anode being composed of the refractory compound in admixture with carbon and the energy of the arc at the anode face being so high as to produce a stream of ionized vapour of the ore material thereby producing a halide of the metal which is then collected.  Referring to Fig. 1 the electrodes 11, 12 are so positioned in a chamber 10 as to maintain an arc 13 between them. The cathode 11 is preferably made of carbon and the anode 12 is composed of a mixture of carbon and the ore, e.g. kaolin, the anode being carried by a conducting and adjustable sleeve 15.  Chlorine is fed from a source 17 to the chamber 10 through a sleeve 20 surrounding the cathode.  The liberated aluminium is immediately converted to volatile aluminium chloride and the oxygen, silicon and other constituents of the ore form gaseous products such as the oxides of carbon and chlorides of silicon.  Gaseous reaction products are withdrawn through conduit 21 to a vessel 24 cooled to, for example, 500 DEG  C., by a jacket 26 whereupon the high melting point chlorides are condensed and withdrawn at 30 DEG  C.  Gaseous products are withdrawn through conduit 31 to a vessel 32 cooled to, for example, 170 DEG  C., by a jacket 33 whereupon the aluminium chloride is condensed and withdrawn at 38 into an electrolysing bath 39.  To maintain a high current density on the active end surface of the anode the core of the anode preferably contains a higher proportion of carbon than that of the periphery.  In a modification (Fig. 2) the anode 112 comprises a short briquette supported on a conducting terminal 112a.  The terminal is adapted to be withdrawn from the chamber and a new briquette supplied thereto by a horizontal thrust-rod 53.  To provide maximum contact between the new briquette and the terminal a brush 54 serves to wipe powder from the face of the terminal.
Patent GB-817320-A (GB)
Title: Preparation of perfluorodienes
IPC: C07C21/18
Filed: 1954-07-26
Abstract: Perfluorodienes of the general formula F2C=CF(CF2)mCF=CF2 (1) (wherein m is zero or an integer from 1 to 16) are prepared by the pyrolysis, at a pressure below 300 mm. Hg absolute, of an anhydrous compound of the formula MO2C(CF2)m+4CO2M (2) F2C=CF(CF2)m+2CO2M (3) (wherein M represents an alkali metal).  The pyrolysis is preferably effected at a pressure of 10-3 to 20 mm. Hg absolute and a temperature of 100 DEG  to 450 DEG  C.  When the pyrolysis of a compound (2) is effected under relatively mild conditions, there is obtained as a by-product an acid fluoride of the formula F2C=CF(CF2)m+2COF (4) which may be converted to a compound (3) and the latter pyrolysed to give a further yield of compound (1).  In examples: (1) anhydrous disodium octafluoroadipate is heated gradually to 450 DEG  C. at 10-2 mm. pressure and the product is fractionated to give a lower boiling fraction consisting mainly of hexafluorobutadiene-1 : 3 and a higher boiling fraction containing an acid fluoride from which, after hydrolysis, perfluoro-4-pentenoic acid is recovered; (2) the last named compound is neutralized with caustic soda and the sodium salt is dried and then pyrolysed at 450 DEG  C. and 10-2 mm. pressure to give a further yield of hexafluorobutadiene-1 : 3, which reacts with chlorine to form 1 : 2 : 3 : 4-tetrachlorohexafluorobutane.  Additional starting materials specified are NaO2C(CF2)5COONa, NaO2C(CF2)8CO2Na, NaO2C(CF2)20CO2Na, KO2C(CF2)4CO2K, LiO2C(CF2)12CO2Li, F2C=CF(CF2)4CO2Na, F2C=CF(CF2)5CO2Na, F2C=CF(CF2)10CO2Na, F2C=CF(CF2)20CO2Na, F2C=CF(CF2)2CO2K and F2C=CF(CF2)7CO2Li.  Specification 687,685 is referred to.
Patent GB-930736-A (GB)
Title: Industrial trucks
IPC: B66F9/20
Filed: 1960-06-22
Abstract: 930,736. Controllers. YALE & TOWNE MANUFACTURING CO. June 22, 1960 [July 23, 1959], No. 21824/60. Addition to 880,057. Class 38 (3). The truck described in the parent Specification (see Group XXXI), which is driven by two, independent, reversible, electric motors, has a controller which, by movement of its single handle 28 in one plane 40, 41, causes both motors to run at the same speed and in the same direction (depending respectively on the amount and direction of displacement of the handle), while movement at right angles to 40, 41 provides differential control of the motors, by which the truck is steered. The motors are controlled by resistors successively shortcircuited by contacts 16 on resilient fingers 15, 17, there being one bank of such contacts for each motor. The contacts above each central operating finger 19 cause motor rotation in one direction, those below in the reverse. The handle 28 is ball-pivoted at 26 but the part 30 is constrained between guide rods 31; thus the bar 35 may be moved bodily up and down or twisted so that the motors are driven at the same or different speeds, in the same or in opposite directions. Specification 811,275 also is referred to.
Patent GB-479601-A (GB)
Title: Improvements in or relating to sheet-metal containers
Filed: 1936-08-07
Abstract: 479,601. Making tearing-strips for cans. SPEIDEL, E. F. M. Aug. 7, 1936, No. 21826. Convention date, May 23. [Classes 83 (ii) and 83 (iv)] [Also in Group XVII] Stamping; welding.- An integral tearing-strip, carrying a pull member and adapted to be torn out by hand, is formed in the wall of a container or a closure therefor by forming two weakened lines by compression of the material, a rib which accompanies one weakened line having a gap through which extends one end of the tear strip, the pull member being secured upon this end of the strip. A tearing-strip 8, Fig. 13, in a cover 5 lies between the flange 7 and a strengthening corrugation 6, there being an area 33 of unaffected metal between the ends of the strip which is unsevered when the container is opened and serves as a hinge for the cover. An opening member 35 normally lying flat on the cover, is secured by spot-welding at projections 39 to the end of the strip which passes through a gap in the rib 6. The end 40 is curved so that the tearing-strip may not be cut when the member 35 is initially raised to a vertical position. The end of the eye 36, which may lie at the centre of the cover or adjacent the opposite side, is bent upwardly to facilitate the commencement of the tearing operation. A weakened line is produced in a container cover by stamping and flanging between dies 11, 12, Fig. 5, projections 26, 27 on the die 12 co-operating with a flat surface 18 on the die 11 to produce compressed, weakened lines 30, 31. In a modification, the walls of the recess 25a, Fig. 8 between the projections 26, 27 are curved, and the depth of the recess is greater than the thickness of the metal to allow displacement of the metal. The weakened lines may, alternatively, be formed by flanges 103, 104, Fig. 27 on a roll 101 which co-operates with a roll 100. A modified opening device comprises a member 91, Fig. 23. welded to the strip at projections 92, and having an extension 93 of substantially triangular form which is engaged by an independent, key 94. In a further modification, a hole in a member 91a, Fig. 25, is engaged by a hook 96a, Fig. 26 of a key 94a. Further modifications of the form of the tearing-strip are shown in the Specification. According to the Specification as open to inspection under Sect. 91, a tearing-piece 58, Fig. 17 (Cancelled), of circular or oval form, is provided within a strip 55 bounded by compressed and weakened lines 56, 57. The piece 58 lies between the ends of one or more corrugations 51, and may be partly enclosed by strengthening ribs or corrugations 52, 53. The opening means may comprise a ring 89. Fig. 30 (Cancelled), hingedly mounted on a member 88 which is secured by welding to the strip 86 in the side of the container, or in the end similarly to the construction of Fig. 13. Weakened lines 120, 121, Fig. 35 (Cancelled), forming a tearing-strip 122 are formed in a strip 124 of metal having prongs 125 the strip being used to connect parts of a non-metallic container. This' subject-matter does not appear in the Specification as accepted.
Patent GB-441867-A (GB)
Title: Improved appliance for serving ice cream wafers
IPC: A23G9/28
Filed: 1934-07-26
Abstract: 441,867. Ice-cream. GIUSTI, T., 52, Pembroke Street, Islington, and MARCANTONIO, F. F. L., 7, Sebert Road, Forest Gate, both in London. July 26, 1934, No. 21853. [Class 28 (i)] In an appliance for serving ice-cream wafers, the movable bottomplate is provided with an uneven surface so that it does not provide a smooth water-carrying surface for the biscuit to rest upon. As shown, the plate is apertured at 3, the periphery 4 being connected to the centre portion 5 by arms 6 which may themselves be ribbed or grooved. Alternatively, the plate may have a surface rendered uneven by ribs, grooves, projections or hollows. The appliance may be shaped to accommodate rectangular, circular or other wafer biscuits.
Patent GB-158183-A (GB)
Title: Improvements relating to machines for recording, totalling and compiling cash and other sale transactions by means of perforations in record strips
IPC: G06C11/08
Filed: 1919-10-27
Abstract: 158,183. Haddan, A. J. H., (National Cash Register Co.). Oct. 27, 1919. Cash registers; perforating-mechanism. - In machines, as described for example in Specification 158,083 which perforate record-strips to represent amounts, nature of transaction, and other data, and to be subsequently removed and run through a totalizing and recording machine as described in Specifications 158,084 and 158,180, means are provided to ensure that the strip prior to its removal receives a particular perforation, for example one representing the number of the registering-machine. Moreover when a fresh strip is inserted in the machine it is automatically punched and this perforation may be utilized to stop the totalizing-machine when the strip has completed its run. The record strip 447 passes from a supply roll 497 to a storage roll 498, which is removably mounted between axially movable spindles 514 as described in Specification 158,190. Movement of these spindles for allowing removal or insertion of a roll is normally prevented by arms 558 which are fast on a shaft 559 and project over the outer ends of the spindles. Rollers 563 on the arms engage levers 564 loose on a shaft 358 and connected by a cross rod 566 with a series of levers 565 the noses 574 of which co-operate with notched plates 570 on the differential sectors 310. The notches are so positioned that they register with the noses, only when the machine is operated with its number set up on the amount keys. Consequently only under these conditions can the arms 558 be rocked counterclockwise so as to permit the dismounting of the storage roll. The shaft 559 is rocked by means of hand-levers 575 and cams 580 on the shaft are arranged to engage and rock arms 583 of levers 553 so that rollers carried by them pass into off-sets of cam grooves on discs fast on the main shaft 97. The latter is therefore locked while the record-strip is being inserted or removed. The terminal perforation is made when a. new record-strip is inserted, by a punch 587 operated by arms 593, 595 controlled bv an arm 596 which is rocked counterclockwise by the roller 563 when the arms 558 are being restored to normal position for blocking the storage-roll spindle against removal.
Patent GB-1342119-A (GB)
Title: Electric coin detecting apparatus
IPC: G07D/
Filed: 1971-04-19
Abstract: 1342119 Semi-conductor switching circuits MODERN RESEARCH Inc 19 April 1971 [16 Feb 1970] 21914/71 Heading H3T [Also in Division G4] In a coin tester (see Division G4) the effect of a coin on an oscillator comprising field effect transistor F.E.T. 1 and resonant tank circuit L2, C9, VC1 is monitored by a pair of transistors Q3, Q4 connected across resistor R9. The amplitude of the output pulse at the collector of transistor Q3 is dependent on the material of the coin passing inductor L2 and this pulse is differentiated by circuit C13, R12 to provide positive and negative spikes (Figs. 6 and 7, not shown) the latter of which fires SCR3 to energize an accept solenoid if the coin is genuine. Transistor Q4 is set by potentiometer VR3 to become conductive when the voltage drop across resistor R9 is greater than that of a genuine coin and energizes relay RS1 to change over switch RS1a discharging capacitor C13 and ensuring that SCR3 is not fired. In another embodiment (Figs. 2 and 3, not shown) the build up of a coin material dependent control signal at the gate of (SCR1) controlling accept solenoid (SC3) is delayed by RC network (R5), (C8) and if the signal reaches an unacceptable level Zener diode (D2) will break down and fire (SCR2) to hold the gate electrode of (SCR1) at ground potential.
Patent GB-481433-A (GB)
Title: Improvements in or relating to the control of internal combustion engines
IPC: F02B25/00
Filed: 1936-08-10
Abstract: 481,433. Two-stroke engines; regulating. DAIMLER-BENZ AKT.-GES. Aug. 10, 1936, No. 21963. Convention date, Aug. 9, 1935. [Classes 7 (ii) and 7 (vi)] In engines, particularly twostroke engines, wherein the scavenging and charging are substantially effected by the suction created in the cylinder by the escaping column of exhaust gases, the time of closing the exhaust is controlled so as to take place earlier at lower speeds than at higher speeds, to prevent the backflow of the exhaust gases from affecting the charging operation. The Figure shows a pistoncontrolled exhaust port 4 further controlled by a rotary valve 5, the time of closure of which is varied by adjustment of a helical spline between the valve spindle and its driving- gear or the adjustment of a helically toothed driving-gear. The adjustment may be effected by a centrifugal governor or by hand. Specification 433,502 is referred to.
Patent GB-155006-A (GB)
Title: Improvements in cinematograph apparatus
IPC: G03B15/08
Filed: 1919-09-06
Abstract: 155,006. Bolam, T. H., and Newman, A. S. Sept. 6, 1919. Kinematograph apparatus for films having two rows of pictures comprises a laterally movable lens mount, means whereby lateral movement of the lens causes one spool to be unclamped from its spindle and the other to be clamped, and means for giving warning when the film is nearly unwound from one spool. The mechanism preferably comprises five parallel spindles b - - b<4> geared together and running at the same speed, the spindles b, b<4> carrying spools n, n<1>, and the spindles b<1>, b<3> carrying sprockets g. The spindle b<3> is driven by a handle b<23> and is geared to a claw feed i<3> and the shutter h<5>. The spindles b, b<4> have disks b<10> fixed to them and disks b<20> sliding on them, the disks clamping loosely mounted gear wheels c, c<4> between them. A lever m, pivoted at m<1>, has leaf springs m<2> carrying forks e engaging grooves b<12> in the sleeves b<11> of the disks b<20> so that engagement of one disk b<20> with its gear wheel causes disengagement of the other disk b<20> from its gear-wheel. The lever m is linked bv another lever to an arm k<2> on the mount k of the lens, the lens k being slidable in guides k<1>. The spindle b<2> is connected by a worm j to a worm-wheel j<1> carrying an adjustable cam j<2>. The cam is adjusted so that, just before the film becomes unwound from the spool n, it rocks a hammer j<4>, and a gong j<5> is struck, thus warning the operator to slide the lens and reverse the direction of feed. One long spring may be employed instead of the two springs m<2>, and the lens may be fixed, the other parts being movable with respect to it. The film g<1> may have a single row of perforations g<2>, each perforation being at the junction of two pictures. According to the Provisional Specification, the feed-mechanism may comprise a slotted lever rocked by a pin on a disk engaging in the slot; a cam on the spindle of the disk moves a claw, pivoted on the lever, into and out of engagement with the film. The hammer that strikes the gong may also be actuated by a nut which travels along a screw as the film is fed.