baber/WOPTO huggingface dataset:
Patent GB-585050-A (GB)
Title: Improvement in preparation of improved drying oils
Filed: 1944-07-15
Abstract: A fatty oil containing drying constituents is subjected to a treatment for removal of at least a part of the nonpolymerizable constituents, the remaining portion of the oil is subjected to a bodying or polymerization treatment and the bodied oil is subjected to high vacuum unobstructed path distillation to distil off a fraction containing unpolymerized constituents.  The residue remaining behind after the distillation is a drying oil, of shorter drying time than the original fatty oil, dried films thereof having increased hardness, adhesion and resistance to water.  The fatty oil treated may be soyabean or linseed oil or a fish oil such as sardine or menhaden oil, and the first stage of the process, whereby nonpolymerizable constituents are removed, may be effected by high vacuum unobstructed path distillation or by solvent extraction.  In examples, (a) sardine or linseed oil is subjected to high vacuum unobstructed path distillation, the residue is polymerized by heating in an atmosphere of nitrogen and the polymerized product is subjected to high vacuum unobstructed path distillation, (b) sardine oil is treated as in (a) except that the polymerization is effected by blowing out through the heated oil. (c) soybean oil is treated as in (a) except that a two-stage polymerization process is employed, the polymerization process of (a) being preceded or followed by that of (b), (d) soybean oil is subjected to methanol extraction, the residue is polymerized by heat and the polymerized product is subjected to high vacuum unobstructed path distillation.  For comparison purposes, the physical properties are given of sardine oil which has been treated according to (a) but with the initial or final distillation omitted.
Patent GB-1237561-A (GB)
Title: Hydrostatic transmission control system
IPC: F16H59/22
Filed: 1968-06-14
Abstract: 1,237,561. Variable speed gearing. CATERPILLAR TRACTOR CO. 14 June, 1968 [14 June, 1967], No. 13583/68. Heading F2D. A hydrostatic transmission comprising a variable displacement pump 31 in a closed loop 33, 34 with a variable displacement motor 32 is driven by an engine driving a positive displacement pump 70 with an output proportional to engine speed supplying fluid through a venturi 72 and a first chamber 75 and then a speed control valve 79 in parallel with an underspeed valve 80 to a second chamber 76 at a lower pressure due to restriction in the valve 79, the difference in pressure between the chambers 75, 76 being converted by a sensor 90 to a mechanical output adjusting a servo 37 controlling the pump 31 displacement. The underspeed valve 80 may be connected to the venturi 72 so as to open as the engine speed drops to cause the pump 31 displacement to reduce. The valve 80 may be in series with an idling valve 155 which closes when the engine is idling. The control may also vary the motor 32 displacement by a sensor 100 so that as the pressure differential increases the pump 31 displacement is first increased to a maximum and the motor displacement is then reduced. Steering of a two pump-motor transmission for a track-laying tractor may be effected by sensors 161 mounted on linkwork joining the sensors 90 to the pumps 31. The linkwork may comprise a link 65 pivoted to the sensor 90 and at 164 to two plates 162 pivoted at 163 and connected by a link 170 to the pump servo 37. Each sensor 161 is mounted on its plate 162 so that when actuated it moves the pivot of the link 170 on a path across 163. The sensors 161 are selectively controlled by a valve 175. Override control.-The pressure difference between the chambers 75, 76 may be reduced by an override valve operated either if excess pressure build up in the hydrostatic loop 33, 34 signalled via a line 255 to a sensor 136, or if a pedal 134 is depressed. Overspeed control.-If the engine overspeeds the pressure differential in lines 71, 72a of the venturi will actuate a valve 140 to apply the brakes 149. Relief and replenishing of the hydrostatic loop 33, 34 may be effected by the arrangement of ball valves and orifice units of Fig. 2 or of Figs. 8 and 9 (not shown) claimed in Specification 1,237,564. The ball valves of Fig. 2 may be replaced by the variable orifier valve of Fig. 13 (not shown) claimed in Specification 1,237,562.
Patent GB-1383822-A (GB)
Title: Punched tape readers
IPC: G06K13/26
Filed: 1972-03-23
Abstract: 1383822 Tape transports; braking LICENTIA PATENT-VERWALTUNGS GmbH 23 March 1972 [24 March 1971] 13684/72 Headings G5R and G4M [Also in Division H2]  A transport motor 2 of a punched-tape reader includes a magnetic braking and locking device 12 comprising a rotor 3 on the motor shaft 1, a surrounding coil 6 located between stator rings 7, 8, and magnetically permeable webs 4 on the rotor periphery which are co-operable with webs 11 on the rings 7, 8. When the coil 6 is energized the motor is braked and held in a position in which webs 4 and 11 are aligned, and a magnetic circuit is formed by rings 7, 8, web 4 and a spacer ring 9. The tape is driven between contacting rollers, one of which is driven by the motor 2. A motor control circuit, Fig. 2, provides that (i) the motor 2 receives a drive signal when the speed f thereof is less than the nominal speed U thereof; (ii) when a stop signal L is applied, the drive circuit, is de-energized, the motor 2 is supplied with a reverse braking current if its speed f is higher than a predetermined low speed f 0 , and the locking device 12 is energized.
Patent GB-752499-A (GB)
Title: Improvements in devices for detection of faults in very long electrical cables
IPC: G01R31/11
Filed: 1954-05-12
Abstract: 752,499. Pulse echo fault detection. COM. PAGNIE GENERALE D'ELECTRICITE. May 12, 1954 [May 18, 1953], No. 13840/54. Class 40 (7). A pulse echo fault detector for determining the position of faults in long electric cables is provided with means for increasing the signalto-noise ratio. The detector comprises a pilot oscillator 1 synchronizing a first pulse generator 2 supplying the test pulses to the cable 4 to be tested over transformer 5 to which is also connected balancing network 6. The distant end of the cable is provided with a matching network 17. Returned echo signals produced by the reflection of the test pulses from cable defects are applied to the input of amplifier 7, which feeds a recording device 15 over a non- linear bridge 12, filter 13 and amplifier 14. The whole of the signal received after the transmission of a given test pulse is not applied to the recorder 15 but only that part of it occurring during the period of a pulse not longer than the transmitted pulse (and preferably shorter) supplied by pulse generator 10. This generator is synchronized by signals from the pilot oscillator 1 fed through rotary phase shifter 3 driven by motor 8 through reduction gearing 9. Control of the speed of motor 8 enables the phase shifter 3 to complete one rotation in a period varying from a few seconds to a few minutes as required and the gating pulse from generator 10 moves at a corresponding speed through the time following the test pulses. This enables desired signals to build up relative to random noise and to produce a recognizable indication. The recorder itself is driven by the motor 8 through'reduction gear 16 similar to reduction gear 9. It is not essential to the invention that the indicator is a recorder and it may be a cathode-ray oscillograph. The rotary phase shifter may be replaced by an electronic arrangement controlled by an electric system synchronized with the motor rotation. Reference has been directed by the Comptroller to Specification 678,366.
Patent GB-196827-A (GB)
Title: An improved device for holding doors and the like in the open or partly open positions
IPC: E05C17/50
Filed: 1922-05-17
Abstract: 196,827. Lang, A. May 17, 1922. Door-holders. - A spring-pressed catch 1 mounted pivotally on a bracket 2 fixed to the wall 3 is arranged to engage with a metallic ring 9 secured in the hollow knob 10 of the door-handle to retain the door in its open position. To release the door, the handle is turned, bringing a chamfered part of the ring 9 opposite the catch so that a pull upon the door causes the catch to be raised and pass out of the knob. In a modification, the catch is arranged upon an arm pivoted to the wall or door-post so as to retain the door in a partially-open position; this arm may be telescopic so that the position may be varied.
Patent GB-397815-A (GB)
Title: Improvements in and relating to gas detectors
IPC: G01N7/12
Filed: 1933-05-12
Abstract: <PICT:0397815/III/1> In gas detectors of the kind comprising a chamber with porous walls through which the gas diffuses, a heated filament within the chamber, and means for indicating a reduction in pressure in the chamber due to the combustion of inflammable constituents, the sensitivity of the apparatus is increased by cooling the chamber and optionally also by humidifying the gas to be tested.  The Figure illustrates a device comprising a chamber with permeable side walls 16, an electrically heated filament 17, and a diaphragm device 38 for signalling reduction in pressure by closing electric contacts 44.  The chamber is enclosed in a larger chamber 11 containing water and the gas to be tested is introduced through a porous plate 23 below the water level.  A cooling coil 28 is provided in the inner chamber.  In a modification the gas is humidified by surrounding part of the porous walls of the chamber with water or by conducting water to them by means of a wick.
Patent GB-1180295-A (GB)
Title: Method and Means for Extrusion of Plastics Tubes for Subsequent Forming by Blowing or Vacuum
Inventor: SVENDSEN JOHAN PER GREIJNER
IPC: B29C48/09
Filed: 1967-03-28
Abstract: 1,180,295. Stretching and blowing tubes. GRUBERNES SPRAENGSTOFFABRIKER A/S. 28 March, 1967, No. 14049/67. Heading B5A. Plastics tubes 3, Fig. 2, are extruded horizontally and supported from the extruder by a support member 4 used for expansion in substantially two opposite directions only transverse to the axis of the tube to flatten it. The tube may be subsequently blow-moulded or vacuum-formed in dies 5, 6. In one embodiment, the tube 3 is extruded intermittently, the support member comprising two rods 4<SP>1</SP>, 4<SP>11</SP>, Fig. 4, drawn through the core 2 of the extruder 1 at the same speed as the tube and which diverge to expand the tube, before expansion in the blow-mould halves 5, 6. Alternatively, the support may comprise one support rod, there being an underlying or inserted rod to expand the tube in conjunction with the support rod. Adhesion is prevented by cooling the rods.
Patent GB-112405-A (GB)
Title: Improvements in Agitators for use in Amalgamating and other Apparatus.
Inventor: BERRY SENECA LUCIEN
IPC: C22B11/10
Filed: 1917-09-28
Abstract: 112,405. Berry, S. L. Sept. 28, 1917. Continuous-discharge apparatus with circulating-devices.-Agitating-apparatus for use in amalgamating and other apparatus comprises a casing 6, rotatably mounted within a tank 2 and having outwardly extending hollow arms 18 through which the liquid is forced towards the bottom of the tank by a rotatable impeller 15 arranged within the casing. The annular casing 6, which is provided with a flaring mouth 14 at the top and with guide-vanes 30 to arrest the rotation of the pulp, is secured to a hollow neck 7, which is supported by a bearing-ring 4 from the cross-beam 5 and driven by worm gearing from a shaft 9. The impeller 15, provided with vanes 20, is secured to a vertical shaft 16 which extends through the neck 7 and is driven through reversing-gearing 24, 25, 26 from the shaft 23 of an electric motor. An eccentric-bearing mounting 27 at the inner end of the shaft 23 is rotatable by a handle 28 to move the friction cone 26 into gear with either of the wheels 24, 25. The shaft 9 is preferably driven through cone pulleys 31, 32 and a belt 33 from the shaft 23. The impeller 15 draws the pulp into the casing and forces it into the diffusion chamber 17 forming the lower part of the casing, whence it passes into the hollow arms 18 formed with outlet slots 19. A casing 21, supported on the neck 7 and connected to the chamber 17, contains a gauge 22 to indicate the pressure in the chamber. When the apertures 19 become clogged, as indicated by the gauge 22, the direction of rotation of the impeller is reversed. The pulp is fed into the tank through a pipe 34, and is discharged through a pipe 35 having an adjustable inlet 36 on its inner end. The outlet 42 in the bottom of the tank through which the mercury is discharged is fitted with a plug valve.
Patent GB-431258-A (GB)
Title: Improvements in or relating to television transmitters
IPC: B65H29/04
Filed: 1934-01-03
Abstract: 431,258. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.- (Assignees of Kell, R. D. ; 102, Jess Avenue, Haddonfield, New Jersey, U.S.A.) Jan. 3, 1934, No. 14056/35. Convention date, Jan. 3, 1933. Divided out of 431,207. Drawings to Specification. [Class 40 (iii)] Relates to television transmitters of the cathode - ray type. The apparatus is as described in Specification 431,207. The claims relate to means for neutralizing the shock impulse caused by sudden changes of illumination due to intermittent projection of an optical image on to the light-sensitive screen.
Patent GB-691065-A (GB)
Title: Improvements in the feeding of collapsed cartons and the like
Inventor: PAGE JAMES
IPC: B65H3/08
Filed: 1950-06-06
Abstract: 691,065. Feeding sheets. ROSE BROS. (GAINSBOROUGH), Ltd. May 10, 1951 [June 6, 1950], No. 14088/50. Class 100(i) Sheet-separators.-A suction-feed for collapsed cartons comprises a suction-head 18 adapted to seize the lowermost carton in a stack 11 and to move transversely to the stack to pass the carton to feed-rollers 63, deflecting fingers 46 being inserted into the stack to deflect the sealing tabs of the seized carton during the movement to prevent their interference with the adjacent carton in the stack. Suction is appliedcontinuously through hollow shafts 21, 19 and 27 but may be interrupted at the release point by a valve 36 controlled by a cam 42. The head 18 is moved up to the stack by a cam 33 acting through a lever 29 and link 28 and is then moved transversely by an eccentric 26 to pass the carton into the nip of rollers 46 which forward it to a platform 66 along which it is propelled by pushers 68 on endless chains 67. Simultaneously, the fingers 46 are moved forward by an eccentric 54 to engage the tabs and then outward by a cam 61 to displace them away from the adjacent carton, the various cams and eccentrics being operated in timed relation. Specification 678,094 is referred to.
Patent GB-184590-A (GB)
Title: Improvements in connection with steering mechanism for cycles, tri-cars and the like
IPC: B62H5/06
Filed: 1921-05-20
Abstract: 184,590. Elverson, A. J. H. May 20, 1921. Guarding against unauthorized use. -A device of the kind described in Specification 176,222 is applied to the handlebars or tiller of a cycle, motor-cycle, tri - car, or like vehicle terminating in a fork carrying a steerable road-wheel, whereby the handle-bars &c. are adapted to be locked at will in either a rigidly-connected or a rotatable condition upon the steering-pillar, thus preventing unauthorizied use. The handle-bars &c. 8 are carried by a flanged plate 9 rotatably mounted on a collar 7, which is rotatably mounted on the upper end of a cap 2 fixed to the pillar 1 and has a flanged extension 7<a> formed with scroll-gear threads adapted to operate radial bolts 5 so as to connect or disconnect the handle-bars 8 and pillar 1. The collar 7 is operated by means of a knurled nut 10, and is locked in either of its effective positions by means of a key-operated or other lock 13, 14.
Patent GB-636406-A (GB)
Title: Improvements in or relating to electrically driven reciprocating tools
IPC: B23Q5/027
Filed: 1947-05-28
Abstract: 636,406. Grinding-machines; reciprocating saws. BRITISH RAWHIDE BELTING CO., Ltd., and DIBOVSKY, V. V. May 28, 1947, No. 14165. [Classes 60 and 145 (ii)] [Also in Group XXII] An electrically-driven reciprocating tool comprises a horizontal work-table through which a grinding-bar or saw reciprocates, the table being spring-urged upwardly and connected to electric switching-means controlling the circuit of a driving motor, such that when the work is placed on the table adjacent the tool the circuit to the motor is closed. A tubular framemember c is provided with a bracket and clampscrew e for attachment to a table or shelf. The tubular part carries at its lower end a detachable electric motor a and driving gears p, q, for reciprocating a chuck-member b for the grinding bar or saw. At the upper end of the tubular member is arranged a telescopic stand f for a work-piece, a slot n in which serves as a guide for the saw &c. The lower end of this stand rests on three spring-pressed balls h, one of which transmits movement to a vertical rod j to close a switch m when the stand is depressed. The switch controls the starting and stopping of the driving motor.
Patent GB-560349-A (GB)
Title: Improvements in and relating to compressor unloaders
IPC: F25B31/02
Filed: 1942-10-09
Abstract: 560,349. Gas compressors. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 9, 1942, No. 14211. Convention date, Oct. 9, 1941. [Class 8 (i)] The unloading means of a refrigerant compressor enclosed in a casing comprises a cylinder containing a sleeve with a cup 51 welded to it to form a piston subject to the pressure of lubricant, the sleeve having a port 58 which co-operates, at low speeds and correspondingly low lubricant pressures, with a passage 59 leading to the compression space, which is thus connected with the interior of the casing forming the compressor inlet space. The piston is pressed by a spring 57 abutting on a cup-shaped member 53 spaced from the sleeve 52 and forming with it muffling means.
Patent GB-725386-A (GB)
Title: Improvements in or relating to aerials
IPC: H01Q21/30
Filed: 1953-05-21
Abstract: 725,386. Aerials. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. May 21; 1953 [May 21, 1952], No. 14266/53. Class 40(7). A slotted aerial system comprises two aerial units arranged end-to-end about a common axis and designed for operation at different frequencies, the unit designed for operation at the higher frequency having a larger number of slots than the other. The two units preferably comprise tubular conductors, in which the slots are cut, arranged one above the other. The tubular conductors may be of the same transverse dimensions or the upper one may be the smaller. Equal transverse dimensions of the units can be obtained when the numbers of slots in the units are approximately in the same ratio as the frequencies and such dimensions should be sufficiently large to permit an engineer to ascend inside the system. Fig. 3 shows an embodiment with one aerial unit comprising 6 elements 1 having two diametrically opposed slots, a non-radiating spacer unit, and a unit operating at a higher frequency consisting of 8 elements, 2 each with 4 slots. The elements are rigidly attached to each other and to the top of a mast 5. Stays 6 and 7 may be provided. For omnidirectional operation the elements in each unit may be staggered circumferentially.
Patent GB-418524-A (GB)
Title: Improvements in or relating to cigar making machines
IPC: A24C3/00
Filed: 1933-05-18
Abstract: 418,524. Cigar-making machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (International Cigar Machinery Co. ; 5520, 2nd Avenue, Brooklyn, New York, U.S.A.) May 18, 1933, No. 14396. [Class 130.] In a cigar-making machine bunches B are transferred from the rectifying transfer 11 of the rolling device 8, where a charge of filler tobacco is rolled within a binder with the latter projecting beyond the ends of the charge to the loading carriage 14 of the turret mould 40 by means 13 which include gripping devices 69, 70 provided with laterally-spaced fingers adapted to grip the projecting ends of the said binder. The grippers 69, 70 are secured, the latter by a pivot 72, to a holder 68 mounted on the end of a shaft 65 which is journalled in a bearing 61 and is provided at its upper end with a gear 66 which meshes with a gear 67 carried by a shaft 62 journalled in a bearing 60, both bearings 60, 61 being formed in a bracket 59 affixed to a shaft 54. The shaft 54 is journalled in one end of an arm 51 which is secured at its other end to a driven shaft 47 and is fitted with a sprocket 55 connected by a chain 56 with a sprocket 57 loosely mounted on the shaft 47 but fixed to the frame of the machine. This construction is such that upon operation of the shaft 47, which is swung successively clockwise and anticlockwise through one-half revolution by a rack 49 coupled to the main shaft 18, the arm 51 will be swung through 180‹, simultaneously the shaft 54 and holder 68 will be rotated through 180‹ by the chain 56 to bring them into the position shown in Fig. 3 and the holder itself rotated through another 180‹ by the gears 66, 67 to swing the bunch end for end. The gripper 70 is moved automatically towards and away from the gripper 69 in the initial and final positions to grip and release the bunch by hooks 82, 83 on the transfer 11 and loading carriage 14 respectively. The loading carriage comprises a pair of jaws mounted on wheels 37, and it is moved to and from the mould 40 by a lever 39 actuated by the main shaft; one, 14<a>, of the jaws is movable, and both are shaped to correspond to the longitudinal section of the mould pockets so that the bunches can be pushed therein without injury. The mould is loaded when horizontal at position 40 and the bunch is ejected for transfer to the wrapping mechanism at position 40<1111>, the mould in the meantime having been brought into a vertical position and closed by a stationary cam 44 mounted on the turret shaft 34. Mechanism is also described for intermittently delivering bunch charges from a hopper containing a supply of scrap tobacco to the rolling apron 8 ; also a die 6 for cutting a binder of the desired size and a device 7 for transferring it to the apron in such a position with respect to the charge delivery that the binder when rolled about the charge will project beyond the ends thereof.
Patent GB-299278-A (GB)
Title: Improvements in mail stamping mechanism
IPC: B65C9/18
Filed: 1927-08-03
Abstract: 299,278. Cogswell, A. G. Aug. 3, 1927. Divided on 299,118. Drawings to Specification. Affixing stamps. - A mail-stamping machine comprises a movable cutter, means for moving the end stamp of a roll of stamps over its cutting edge, means for moving the cutter to advance the stamps and pressing them into contact with a previously moistened envelope &c., and means for giving the cutter an additional movement which severs the end stamp from the roll, the next stamp to be used being held during the subsequent retraction of the cutter. The machine is fitted with rolls of stamps of different denominations for stamping envelopes with the flaps sealed, or tucked in, respectively, the means for tucking in the flaps being put out of action when the appropriate roll for sealed envelopes is brought into operation. The mechanism is the same as that described in Specifiaction 299,277.
Patent GB-774190-A (GB)
Title: Improvements relating to means for locating electronic discharge tubes in holders therefor
Inventor: DEAKIN STANLEY THOMAS
IPC: H01R33/76
Filed: 1954-05-17
Abstract: 774,190. Caps and holders for thermionic valves. EDISON SWAN ELECTRIC CO., Ltd. May 17, 1955 [May 17, 1954], No. 14467/54. Class 38 (1).  A valve-holder has an upstanding locating surface which is divided into quadrants 14, 15, 16, 17, the quadrants 14, 16 being of larger diameter than the other two and the quadrant 14 being longer circumferentially than quadrant 16, this asymmetry ensuring that a valve base 6 formed with corresponding quadrantal formations 4 ... 7 can be inserted in one position only. The quadrants prevent tilting of the valve when incorrectly presented, thereby preventing incorrect engagement of the contacts, the lengths of the pins 3 being suitably restricted. Asymmetry of the quadrants alternatively may be produced by making opposite quadrants of different diameter.