baber/WOPTO huggingface dataset:
Patent GB-979762-A (GB)
Title: Improvements in devices for operating tool slide of boring and facing machines and the like
IPC: B23B29/034
Filed: 1961-03-09
Abstract: 979,762. Machine tool details. BRAGONZI S.p.A March 9, 1961 [April 15, 1960], No. 8649/61. Heading B3T. The tool-head for a boring and facing machine in which a lead-screw is used to displace the facing slide is characterized in that intermediate gear means are supported for rotation about a shaft secured to the machine frame and in mesh with driving gear means coaxial to and rotatable with the tool-head and with driven gear means supported inside the head and driving the lead-screw, whereby rotation of the lead-screw and displacement of the toolslide results from rotation of the head relative to the machine frame. The facing slide 62 is moved by a lead-screw 58 and nut 60. The lead-screw is driven through a pinion and bevel gears, Fig. 1 (not shown), from a gear 42. The latter is mounted on a sleeve, driven by an adjustable slip clutch 36-38, from a shaft 32 driven by a gear 30. This gear receives its rotation from a ring gear 28 freely carried by a shoulder on the back of the head. The ring gear is rotated at one of three speeds by the gears 10 keyed to the head adjacent the ring gear 28. A pinion 12, slidably keyed to a sleeve 14 integral with a gear 16 and supported by a spindle 18 secured to a fixed part of the machine frame adjacent the facing head, is moved by hand lever 26 to engage one of the gears 10 (of equal pitch diameter but varying in the numbers of teeth). The gear 12 is thus driven and drives the gear 16 and the ring gear 28. For a quick return movement of the tool slide the wheel 12 is moved to a neutral position between the gears 10 and the wheel 16 is locked, thus stopping rotation of the ring gear 28. When used for turning or boring the tool slide may be set by hand and a graduated disc shows the setting.
Patent GB-676830-A (GB)
Title: Improvements relating to electric battery control systems
Inventor: WOLSTENHOLME ARTHUR SCOTT
IPC: H02J7/00
Filed: 1950-04-06
Abstract: 676,830. Charging and discharging batteries. TUDOR ACCUMULATOR CO., Ltd. Feb. 26, 1951 [April 6, 1950], No. 8671/50. Drawings to Specification. Class 38 (iv). A load is supplied alternately by two batteries, each associated with a contact-making amperehour meter controlling relays adapted to switch the load from one battery to the other upon the first reaching a predetermined degree of discharge and to connect it to a charging source until recharged. Each meter may be lagged in the " charge " direction to allow for an increase of charge over discharge. A switch may be provided whereby either battery may be charged independently of its associated meter. The main charge for each battery may be supplemented by a trickle charge through a circuit bypassing the meters. The relay system may comprise (a) a charging relay for each battery having contacts which close the charging circuit of the corresponding battery when the relay becomes energized over the meter contacts, and (b) a change-over relay for connecting one battery to the load whilst the other is either on charge or standing by fully charged, the arrangement being such that the change-over relay is energized over contacts of one charging relay (when energized) and subsequently energized over contacts of the other charging relay (after the first has become de-energized on completion of charge of its associated battery) until the second battery is discharged and said other charging relay becomes de-energized.
Patent GB-708100-A (GB)
Title: Stabilization of acrylonitrile
IPC: C01C3/16
Filed: 1952-04-07
Abstract: The invention comprises acrylonitrile, the polymerization of which has been inhibited by the addition thereto of hydroquinone monobenzyl ether.  Concentrations of the order of 0.5 to 1000 parts per million by weight are suitable.  The stability of the product to oxygen under pressure is shown.  The ether may be removed by distillation or solvent extraction.ALSO:Hydroquinone monobenzyl ether may be used as a polymerisation inhibitor in the distillation of acrylonitrile. Concentrations of the order of 0.5 to 1,000 parts per million by weight are suitable.  The inhibitor may be introduced into the distilling column in which acrylonitrile is being distilled.
Patent GB-710738-A (GB)
Title: Improvements in and relating to magnetising apparatus
Inventor: BRAYBROOKS KENNETH ARNOLD
IPC: H01F13/00
Filed: 1952-04-07
Abstract: 710,738. Magnetizing apparatus; condenser arrangements. ADVANCE COMPONENTS, Ltd. April 7, 1953 [April 7, 1952], No. 8834/52. Classes 35 and 38(4) A magnetizing apparatus for producing a magnetic field of high flux density comprises a condenser 11, means for charging the condenser to a high voltage and a discharge tube 12 for discharging the condenser 11 through a magnetizing coil 10. The tube 12 is triggered by a switch 27 operated by a contactor 28 which is energized by the charging current of the condenser 11 but the tube 12 may also be triggered by a triggering pulse derived from the discharge of a second condenser 17. When the condenser 11 is charging, the current operates the relay 28 and holds open the switch 27 so that no triggering can occur; but when the condenser 11 is almost fully charged, the relay 28 becomes de-energized, the switch 27 closes and the circuit of the transformer pimary winding 14 is complete. The magnetizing pot comprises a cylindrical casing 18 in which the magnetizing coil 20 is placed. The pot has a cover (not shown) to which a switch 33 is mechanically interlocked so that just before the cover can be removed, the switch 33 puts a resistance 32 across the condenser 11 in order to discharge the latter. When the lid 21 is closed the condenser 17 is discharged through the primary winding 14 of the transformer TT, thus a pulse is. applied to the triggering electrode of the tube 12 to initiate the discharge of the condenser 11 through the magnetizing coil 10. Now if the lid 21 is closed before the condenser 11 is fully charged, whilst the relay 28 is still energized and the switch 27 still open, the condenser 11 holds the charge which it receives during the time that the lid 21 was open. As soon as the condenser 11 becomes fully charged, the relay 28 becomes 'de-energized as before and the contacts 27 close, thus discharging the condenser 17 through the transformer winding 14 and thus initiates the discharge through the tube 12. The lid 21 has a hinge comprising a ring 23 surrounding a block 24, the latter being bolted to the rim of the sleeve 18. A micro switch 26, Fig. 2 (not shown), is also fitted on the sleeve 18: to operate when the lid 21 is moved into position over the sleeve 18. This switch, may be the switch 29 in Fig. 1 or it may operate the latter electromagnetically.
Patent GB-1324583-A (GB)
Title: Automatic conduit couplings for hoses or pipes
IPC: F16L37/413
Filed: 1972-02-25
Abstract: 1324583 Pipe couplings K O NYBERG 25 Feb 1972 [9 March 1971] 8910/72 Heading F2G To prevent accidental release of a quickrelease coupling under tension, locking sleeve 32 cannot be moved into the released position (Fig. 2), until the spigot 10 has been pushed further into the socket 11, so that its end 15 further compresses valve spring 25. The inward movement brings the deep part 18 of annular groove 16 opposite ball 12, so that annular step 37 can pass over it, as the sleeve 32 is moved into its released position. During subsequent withdrawal of spigot 10, the ball 12 is received in annular groove 35, while spring 25 closes valve seating 19a and positions ring 27 in contact with the ball 12, to latch sleeve 32 in the released position.
Patent GB-308267-A (GB)
Title: Improved manufacture of artificial silk
IPC: D01F2/06
Filed: 1929-03-19
Abstract: 308,267. Lafond, L. M. V. Gros-., Lafond, V. M. L., Lafond, E. M. V. Pansu-, (Representatives of Lafond, H. G.), and Banzet, P. March 20, 1928, [Convention date]. Right to Patent relinquished. Yarns etc.; yarns &c., stretching.-To improve the textile qualities of artificial silk, the latter is drawn out in the dry state to beyond, the range over which there, is an absence of elasticity, that is, to a point between the limit of this range and the breaking elongation. Silk so drawn out, has an elasticity sufficient for weaving. Drawing out may be effected by winding from a feeding bobbin to another bobbin rotating at a higher peripheral speed, or by passage over rollers moving with increasing surface speeds. Reference has been directed by the 'Comptroller to Specification 277,089.
Patent GB-130435-A (GB)
Title: Improvements in, or in connection with, Dynamo-electric Machinery.
Inventor: BURLEIGH JOHN WESLEY
IPC: H02K9/18
Filed: 1918-05-30
Abstract: 130,435. Burleigh, J. W. May 30, 1918. Plate apparatus. - Relates to apparatus for cooling dynamos &c. of the type in which air is circulated through the dynamo casing and passed through a heattransferring apparatus mounted on the casing in the opposite direction to cooling fluid. The heat-transferring apparatus which may be mounted on the casing in the manner described in any of the Specifications 116,481. 116,571 and 118,392, [all in Class 35, Dynamo-electric generators &c.], is composed of two sets of flat-sided ducts 23 and 24. The ducts 23 are closed at the ends bv walls 27 and communicate through openings 30 in the bottom plate 29 with the dynamo casing. The ducts 24 communicate at one end with a duct containing a fan or rotary pump and at the other end are open to the air or lead into a waste pipe for water. Specification 128,330 also is referred to.
Patent GB-1501292-A (GB)
Title: Web tension control apparatus
IPC: B65H23/16
Filed: 1975-03-04
Abstract: 1501292 Web tension controlling apparatus BUTLER AUTOMATIC Inc 4 March 1975 [4 March 1974] 8968/75 Heading B8R A web tension controlling apparatus comprises a dancer roller assembly 12, Fig. 1, including a pair of rollers 32, 34 mounted pivotally on fulcrum levers 36a, 36b, and biased in the loop forming direction by a piston cylinder assembly 44, the angular displacement of the assembly 12 from a horizontal plane of reference being sensed by a potentiometer 56 producing electric signals which in conjunction with signals corresponding to the rate of angular displacement are applied to a controller 58 whose output signals depending on the direction of the angular displacement of the assembly 12, engage one or the other of an overspeed or underspeed clutches 62, 64, respectively, to restore the assembly 12 to its reference plane. In operation deflection of the assembly in the clockwise direction results in the potentiometer 56, Fig. 2, emitting a positive signal which is applied both to an amplifier 83 and a differentiator 85 (which takes account of the rate of deflection), the outputs of the amplifier and the differentiator being applied to a leg circuit 87 which feeds its output signal to the overspeed clutch firing circuit. The circuit 104 causes the clutch 62 to be engaged until the assembly is deflected in the anticlockwise direction. In a similar manner the potentiometer 56 emits a negative signal which prior to application to the underspeed clutch firing circuit 116 is passed through an inverter 96 to invert the signal to a positive one.
Patent GB-435463-A (GB)
Title: Improvements in or relating to fire alarm systems
IPC: G08B17/06
Filed: 1934-03-22
Abstract: 435,463. Fire-alarm systems. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm.-(Assignees of Soc. des Telephones. Ericsson) March 22, 1934, No. 9004. Convention date, March 24, 1933. [Class 47 (i)] [See also Group XXXVIII] Relates to automatic alarm systems of the kind comprising one or more single conductor loops 1, each of which includes thermal contact members 2 adapted, under fire conditions, to insert an additional resistance into the loop, and each connected across a relay 3, the winding 12 of which is included in a closed control circuit comprising a source of current and a fault relay 8, the current flowing normally in the circuit being sufficient to energize relay 8 but not relay 3 ; and consists in the provision at each relay 3 of a contact 4 adapted to be opened when the relay is energized either by fire or by a fault, and so to open the control circuit. As shown, the relay 3 includes a holding winding 13, and the relay 8 normally closes contact 9 and opens contact 10. In case of fire, the resistance of the loop 1 is increased, so that the relay 3 is energized, and the contact 4 is opened and contacts 14-16 closed. Contact 14 energizes the holding winding 13 through switch 29, so that contact 4 remains open. Contact 15 closes a circuit through contact 9 and alarm circuit 11. Contact 16 closes a circuit through two lamps 22. Under fire conditions, the current still flowing through loop 1 is sufficient to keep relay 8 energized. If a break occurs in the loop 1, relay 3 is again energized. Opening of the contact 4 then opens the control circuit, so that relay 8 is de-energized, contact 9 opened, and contact 10 closed. A fault alarm circuit is then operative through contact 15, contact 10, resistance 18 and lamp 17, and alarm device at 19. The system is restored to the normal condition of rest by opening contacts 6, 7, 29 and closing contact 30, thus energizing relay 8 to close contact 9 and de-energizing winding 13 to close contact 4. Contact 30 is then opened and contacts 6, 7, 29 closed. A switch 26 and resistance 25 are provided for testing the system.
Patent GB-453566-A (GB)
Title: Improvements in or relating to electric transmission systems
IPC: H04H20/81
Filed: 1936-03-26
Abstract: 453,566. Distributing music &c. LORENZ AKT.-GES., C., 1, Lorenzwez, Tempelhof, Berlin. March 26, 1936, No. 9009. Convention date, April 6, 1935. [Class 40 (iv)] In a system in which programmes are distributed at high frequency to subscribers, for example, of a telephone exchange, the lines are grouped in accordance with their length, each group except that of the shortest lines having an individual high-frequency amplifier 15, 16. Impedance-matching transformers and filters are provided where necessary. The system partially shown in the Figure provides for the distribution of three programmes from high-frequency transmitters I, II, III to three groups of exchange lines Gr1, Gr2, Gr3.
Patent GB-889915-A (GB)
Title: Vehicle mounted derrick
IPC: E21B15/00
Filed: 1960-03-15
Abstract: 889,915. Portable derricks. CABOT CORPORATION. March 15, 1960 [June 10, 1959], No. 9040/60. Class 78 (4). A derrick 16 mounted on a vehicle 10 may be pivoted through 180 degrees by power means carried by the vehicle to three positions respectively disposing the derrick horizontally in a position A over the vehicle, vertically, and horizontally in a position B. As described, the derrick is raised from the position B to a vertical position by hydraulic rams 26 which, when extended, pivot trusses 22 about bearings 24 thus pivoting the derrick about its mounting 18 on the vehicle chassis by pulling on links 20. A locking pin is inserted through holes 38 in the trusses and brackets 34 on the derrick when the latter is vertical. To lower the derrick to position A bearing caps 40 are removed and the ram 26 is retracted, thus pivoting the derrick about bearings 24. When in use the rear end of the vehicle is supported by jacks 44 and the derrick by jacks 51. The derrick may be transported on a vehicle other than the vehicle 10 by placing it in position B and removing the bearing caps 40 and the links 20. One truss 22 only may be provided.
Patent GB-1249799-A (GB)
Title: Improvements in and relating to machine controls
Inventor: FREELAND EDWARD JOSEPH
IPC: B30B15/28
Filed: 1970-02-25
Abstract: 1,249,799. Controlling clutches. GULF & WESTERN INDUSTRIAL PRODUCTS CO. 25 Feb., 1970 [17 April, 1969], No. 9044/70. Headings F2J and F2L. The clutch L of a reciprocating press is actuated by compressed air controlled by two solenoid-actuated valves A, B arranged so that when the valves are de-energized air flow to the clutch is prevented even if one of the valves is stuck in its open position, each valve A, B being associated with a proximity switch or, as shown a fluid pressure switch E, F in the energizing circuit of the solenoid coils 74, 76 so as to prevent starting of the press if one of the valves is stuck in its open position. As shown, the compressed air C is delivered to the clutch L through the valve A and a valve 46 positioned by compressed air delivered via valve B, both valves A and B having to be open to engage the clutch. The switches E, F have respective contacts 68, 72 and 66, 70 in the run and hold circuits, K and H, of the press. Initially, current flows in run line 78 through run button contacts 82, 84 and normally closed switches 66, 68 to the anti-repeat relay 1CR closes contacts 1CR1 in line 80. On depressing the run buttons to close contacts 86, 88, (requiring both hands of the operator), relays 2CR, 3CR are energized closing contacts 2CR-1, 3CR-1 and 2CR-2, 3CR-2 to energize the coils 74 and 76 respectively. Valves A and B open, actuating switches E and F to open contacts 66, 68 and close contacts 70, 72 in the hold circuit H. A switch RLS-1 in the hold circuit is then closed by a cam on the press crankshaft to maintain current flow there through to the coils to allow the run buttons to be released. The press is then stopped at the end of its cycle by the camoperated switch. Should either valve A or B be stuck open, one of the contacts 66 or 68 would be open to prevent initial energization of relay 1CR. The valves A and B are formed as poppet valves, Fig. 1, (not shown), the valve A being formed in an integral housing with the valve 46, and both valves E and F being actuated by the output compressed air from the valves A and B. Again, Figs. 3 and 4, (not shown), the valves A and B are arranged in series, valve 46 being omitted. The first valve A again has a fluid pressure actuated switch associated therewith, whereas the second valve B has a proximity switch (116) associated with it. When the valve is opened, a pin (118) is moved so that a mass (120) thereon passes in to the field of the switch to open it. Also, Figs. 5, 5A, (not shown), the two solenoid-actuated valves (134), (136) are connected in parallel, (or in series), and are mechanically linked to three-way valves (138), (140) which, when valves (134), (136) are open, direct compressed air to pressure sensitive switches (154), (156) in the electrical control circuit. Should either valve (134), (136) be stuck open, it breaks the electrical circuit, and compressed air passing through the open valve is exhausted through the closed valve providing an audible signal to the operator.
Patent GB-526954-A (GB)
Title: Improvements in or relating to electron discharge devices for use in the transmission of images
IPC: H01J29/80
Filed: 1939-03-22
Abstract: 526,954. Cathode-ray tubes. MANIFOLD, M. BOWMAN-, and MILLER, H. March 22, 1939, No. 9067. [Class 39 (i)] In a television or like transmitting device in which an electron image is focused on to a mosaic screen which is scanned by a cathode beam the deflection of the scanning beam is so controlled by a steady field as to compensate for distortion produced by the focusing means. Fig. 1 shows such a device in which an image produced on a photo-electric screen 5 is focused by a coil 7 on to a mosaic screen 2 which is scanned by a ray from the cathode 3. A coil 10 surrounding the arm 4 of the tube containing the cathode 10 controls the beam to produce the desired compensation. To compensate distortion produced by the inclination of the scanning beam to the screen the coil 10 may be made unsymmetrical. The invention is also described in connection with apparatus, such as that described in Specification 442,666, in which the projected image and the cathode ray are on opposite sides of the mosaic. In such a device the scanning beam may be produced by a photoelectric or secondarily emission screen, which is scanned by a light beam or cathode ray, so that the scanning beam is always parallel to the axis of the device. Specifications 457,493 and 495,338 also are referred to.
Patent GB-377723-A (GB)
Title: Improvements in and relating to means for cleansing tubes
IPC: F28G1/12
Filed: 1931-03-25
Abstract: 377,723. Cleaning condenser &c.tubes. BRENDLIN, A., 15, Bearntenkolonie, Knapsack, near Cologne, Germany. March 25, 1931, No. 9109. Convention date, March 25, 1930. [Class 99 (ii).] A condenser &c. tube x is cleaned by a pistonshaped member a which is of smaller diameter than the tube and is driven therethrough by water &c. under pressure. The motion of the piston is restrained by an hydraulic device r through a cord &c. b, thus causing an accumulation of pressure at the back of the piston with a resultant high velocity of water through the gap between the piston and tube. The device r may be such that the piston, after passing through the tube, is automatically returned when the pressure of the cleaning water is removed. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a spring for restraining the piston. This subjectmatter does not appear in the Specification as accepted.
Patent GB-766029-A (GB)
Title: Improvements in or relating to discharge nozzles
IPC: B60S1/48
Filed: 1955-03-29
Abstract: 766,029. Windscreen washers. BACHRACH, C., NEUFELD, L. C., MORGAN, W. C., McGINN, S. F., and GIMBEL, J. W., [trading as DELMAN CO.], March 29, 1955, No. 9182/55. Class 138(1) [Also in Group XXIX] Two windscreen washer nozzle assemblies 22 (see Group XXIX), Figs. 1 and 2, are mounted on the cowl 12 of the vehicle and are fed with liquid from a container 21 via a 3-way valve 52 on the container and tubes 50 and 44. A pump 19 is operated by a foot-operated plunger 54 on the vehicle floorboard, and when the plunger is depressed liquid is sprayed from the nozzles and when released liquid is drawn from the container into the pump.
Patent GB-640362-A (GB)
Title: Improvements in and relating to apparatus for tracking the motion of an object relative to an observer
IPC: F41G3/22
Filed: 1947-04-05
Abstract: 640,362. Sighting device for guns. BOULTON PAUL AIRCRAFT Ltd., and NORTH, J. D. April 5, 1947, No. 9239. [Class 92 (ii)] [Also in Group XX] A sighting device for guns comprises a screen 1, means for viewing an optical or other image T of the target on or through the screen, a transverse mark or marks A, B, C, D, on or next to the screen, means for rotating the marks into parallelism with the direction of motion of the target, a mark G representing the direction in which the gun is pointing, and means for moving the mark in a direction parallel to AB and CD, and means for aligning the path of movement of G with that of the target image. The point G may be a spot of light. In use, after the lines have been brought parallel to the target's course from the initial stage shown in Fig. 1, the gun mounting and screen are moved so that the path of T passes through G, Fig. 3, and the gun then moved so that G and T coincide. The gun may be mounted to rotate in a plane parallel to the screen, and is pivoted on the mounting so that the point G, representing the direction of aim, can move across any desired diameter. The lines may be on the screen, in which case the screen rotates ,or they may be independently mounted.