baber/WOPTO huggingface dataset:
Patent GB-1116872-A (GB)
Title: Selector valves
Inventor: BRUCE DONALD MARSH
IPC: F15B13/04
Filed: 1965-05-06
Abstract: 1,116,872. Valves. ELECTRO-HYDRAULICS Ltd. 12 May, 1966 [6 May, 1965], No. 19155/65. Heading F2V. A selector valve comprises a valve body 2 having opposed cylindrical bores 4, 5, a valve plunger 23 with cylindrical end portions 21, 22 slidable in the bores between mechanical stops 15, 33, a flat ported plate 40 co-operating with the valve body, a valve member 49 of resilient material arranged to be moved by the valve plunger to place ports in the plate selectively in communication with one another, spring means 50 to urge the member 49 on to the plate, means to supply fluid pressure to the body to urge the member 49 into sealing engagement with the plate and a further plunger 27 slidable in a cylinder 25, the plunger and cylinder being responsive to a pilot pressure to move the valve plunger in one direction. Pilot pressure applied to port 42 or port 43 shifts the plunger from one end position to the other or applied simultaneously to both ports holds the plunger in a central position when a plunger and cylinder, such as that shown at 25, 27, is provided at both ends of the valve body. A filter element 37a is provided in each cylinder and in a modified construction the mechanical stop 33 at each end of the body extends through the stem of the piston and has flats to provide fluid communication with the spaces subjected to pilot pressure. In a further modification, each end of the plunger has a bore to receive a piston cooperating with a stop in the end wall of the valve body and the two bores are connected by an axial and a radial passage in the plunger with the space 6. Slotted lugs 35 are provided to receive the fulcrum pin of a lever when the plunger is to be actuated manually.
Patent GB-927914-A (GB)
Title: Electric arc welding
Inventor: SMOUT DONALD DUPREE
IPC: B23K25/00
Filed: 1958-06-16
Abstract: 927,914. Automatic control of welding. BRITISH OXYGEN CO. Ltd. June 15, 1959 [June 16, 1958], No. 19174/58. Class 38 (4). [Also in Group XXII] In welding an upright seam between upright members by depositing weld metal under a bath of molten slag using a consumable electrode fed downwards past a welding current contact and maintaining an arc of constant length, the electrode extension beyond the current contact and the current density are such as to produce appreciable variation of the electrode burn-off rate due to resistance heating if the spacing between the welding current contact and the surface of the molten metal varies from a predetermined value and the speed at which the current contact is raised is controlled in accordance with a physical factor that varies with the burn-off rate of the electrode. The physical factor is a control voltage varying with the voltage between the current contact and the weld metal, the feed rate of the electrode or the welding current. The welding head 6 which is driven up a rack 4 by a variable-speed motor 7 carries a pair of water-cooled copper supports 15 which retain the melt. An electrode 9 is fed through the current contact 11 by rolls 10 driven at constant speed. An electrode extension of three inches is used with a welding current density in excess of 40,000 amps. per square inch. The current source has a drooping volt-ampere characteristic so that the arc length is maintained constant by self-regulation. The voltage between the contact member 11 and the members 1 and 2 is used as the control voltage 30, Fig. 3. When the control voltage 30 varies from a reference voltage 37 a polarized relay 32 closes contacts 33 or 34 to operate a relay 36 or 35. The motor 7 raising the welding head 10 has series and shunt windings 38, 39, respectively. Operation of relay 35 increases the resistance in the shunt circuit and operation of relay 36 decreases the resistance in the shunt circuit and increases the resistance in the series circuit. The motor 7 is thus controlled to maintain the control voltage 30 constant. In a modification the electrode feed speed is kept constant and the control voltage varies in accordance with the welding current. In a further modification, the arc length is maintained constant by varying the electrode feed speed under control of the arc voltage. The control voltage for controlling the motor 7 is derived from a tachometer generator driven by the electrode feed-motor 10.
Patent GB-1062971-A (GB)
Title: Improvements relating to packing cases
Inventor: FERREY MARTIN
IPC: B65D5/50
Filed: 1964-05-08
Abstract: 1,062,971. Laminates. MARTIN FERREY Ltd., M. FERRY, and B. S. BRENNER. April 22, 1965 [March 8, 1964], No. 19196/64. Heading B5N. [Also in Division B8] A multiply paperboard material is built up from single faced corrugated paper (9), (10), Fig. 2 (not shown), by mating two sheets together flute to flute with the flutes interengaging and secured by adhesive. The plies so formed may be secured together by a layer of glue (11) with their flutes either parallel or in different directions.
Patent GB-613699-A (GB)
Title: Method for freshening air and composition therefor
IPC: A61L9/01
Filed: 1946-06-27
Abstract: An air freshening composition contains chlorophyll and an aldehydic compound selected from the groups consisting of acetaldehyde, paraldehyde, caproaldehyde, crotonaldehyde, ethylacrolein bromals, chlorals, acetals (including ketals and cylic acetals) and halogenated acetals.  The chlorophyll may be in the form of chlorophyll-a, chlorophyll-b, or the copper, sodium, magnesium, sodium-copper, sodium-iron, or sodium-magnesium derivatives thereof, e.g. the chlorophyllins.  The composition may also comprise a vehicle such as dilute ethylalcohol.  The composition may be dispersed in air by flowing the air over a body of the solution or by spraying, or the composition may be absorbed within or upon a suitable carrier with which the air is contacted.  The composition may be applied to air in an air-conditioning system.
Patent GB-925515-A (GB)
Title: Improvements in or relating to rotary engines, pumps and power transmission units
IPC: F02B53/00
Filed: 1959-06-04
Abstract: 925,515. Rotary engines and pumps. J. F. SLAUGHTER. June 4, 1959, No. 19215/59. Class 110 (2). A rotary I.C. engine, Fig. 1, comprises a hemispherical stator 1 having a driving plate 2, 2a, journalled therein by bearings 5 and a thrust ring 6, the plate being recessed to receive one end of an oscillating spherical vane 3 which is pivotably secured thereto. The vane is provided with an arcuate recess 3b engaging a bearing block 4a which is free to rotate on a pin 4 mounted in the stator 1. The stator 1 is provided with a sparking-plug S and inlet and outlet valves and ports which are adapted to register with ports formed in the plate, see Fig. 2 (not shown). The fixed pin 4 may be replaced by a floating or revolving pin, see Figs. 3, 4 and 5 (not shown). The unit may comprise a pump, Fig. 10, wherein the vane-supporting pin 11 is eccentrically mounted in cylindrical supports 12, 13 forming part of the spherical wall of the stator. The supports 12, 13 may be relatively rotated in order to vary the capacity of the pump by means of a worm-wheel 51, gears 58, 59 and a frame 52 carrying gears 54, 55, 56-see also Figs. 11 and 12 (not shown) for a modified form of gear control. The device may function as an I.C. engine provided with a sparking- plug, atomizer or injection ignition means, as a pump, meter, power transmission unit or as a motor operated by compressed air or steam. For further details and mode of operation the Specification should be referred to.
Patent GB-765964-A (GB)
Title: Improvements in or relating to the manufacture of luminescent materials
IPC: H05B33/14
Filed: 1953-07-10
Abstract: 765,964. Luminescent materials : electroluminescence. GENERAL ELECTRIC CO., Ltd., HUNT, B. E., and McKEAG, A. H. July 12, 1954 [July 10, 1953], No. 19242/53. Class 39(1). Method of manufacturing luminescent or electro 1-1 luminescent Cu-activated ZnS comprises firing ZnS at a temperature above 950‹C., preferably in the range 1100‹-1300‹C., preferably 1250‹C., cooling the ZnS, forming a mixture containing the fired ZnS and a Cucontaining actuating material, preferably Cu SO4. 5H2O, in an amount such that the proportion of Cu present is not more than 1 per cent., preferably from 0À1 to 0À25 per cent., by weight of the mixture, and heating the mixture at a temperature in the range of 600‹-950‹C., preferably 700‹-900‹C., preferably 850‹C. The mixture may include ZnO in a proportion not greater than 50, preferably 25, per cent. by weight of the mixture. It is stated that hexagonal ZnS is probably produced in the pre-firing step and that partial transformation to cubic ZnS probably takes place in the second heating step. Tests for electroluminescence were carried out by forming a dispersion of the powdered material in a dielectric medium, placing the dispersion, with an insulating sheet of mica, between plates of tin-treated conducting glass, and applying an alternating potential of 1000 volts, at a frequency of 1500 cycles per second between the plates.
Patent GB-293461-A (GB)
Title: Improvements in processes and apparatus for the combustion of fuel in furnaces
IPC: F23H9/02
Filed: 1928-07-03
Abstract: 293,461. Crossley, J. S., and Turri, C.Gr. July 7,1927,[Convention date]. Grates; fuel, feeding.-Fuel is supplied to and burnt within a hollow cylindrical grate by carrying it well into the interior of the grate intermediate of its ends and dropping it upon rapidly rotating circular firebars the fuel being distributed and caused to progress during combustion to circular firebars of greater diameter. As shown in Fig. 1, the grate comprises a series of circular bars 1 at the front and a series of circular bars 2 at the rear, the bars 1 being of increasing diameter towards the rear and forming a stepped conical surface. The bars are formed in sections secured together by longitudinal members and the bars 1 are provided with ribs 7. Passages 8, 8<a> are formed between the bars 1 and provide for the admission of air and outlet of ashes. The ends of the grate are provided with tracks 22 which rest on pairs of rollers 23 adapted to be driven. The grate is enclosed by a casing 9 having one or more air admission openings 10. Fuel is fed to the grate by a trough 17 which is supplied with fuel from the . hopper 15 and then advanced into the furnace and inverted.
Patent GB-180930-A (GB)
Title: An improved device for partitioning trunks and drawers, applicable also for use as a press
IPC: A45C13/02
Filed: 1921-07-18
Abstract: 180,930. Martin, H. July 18, 1921. Fittings, internal; boxes combined with presses.-A device for partitioning off a corner of a trunk or drawer, comprises a pair of hinged flaps a, b. which may be retained in an open position by a stay d. The inside faces of the flaps are lined with felt or other fabric, the lining having extensions which form a part cover for the space partitioned off. The device also serves, when closed, as a press for ties, laces, or the like.
Patent GB-459452-A (GB)
Title: Improvements in and relating to toy building blocks or bricks
IPC: A63H33/10
Filed: 1935-07-05
Abstract: 459,452. Toys. PREMO RUBBER CO., Ltd., and LEVY, A., Petersfield, Hampshire. July 5, 1935, No. 19300. [Class 132 (iii)] Toy building blocks or bricks arc apertured for the reception of connecting pegs provided separately or on the blocks, either or both of the blocks and pegs being formed of resilient material, and smaller apertures are formed in the blocks for the reception of lugs extending from a model window frame, door, or like structural member. In the construction shown in Figs. 1, 2, and 3, the blocks 15 are moulded from rubber and are provided with pegs 16 for engagement with apertures 17 in an adjacent block, and the blocks are also provided with smaller apertures 18 for the reception of lugs 20 on a door or window frame 19. Fixed windows are provided by providing more than one pair of lugs. In the construction shown in Fig. 4, the blocks 15 are connected by a separate peg 25 provided with an enlarged head 23 at each end for engagement with beaded recesses 21 in the blocks. The blocks are of substantially the same proportions and colour as ordinary bricks and may be made in single brick lengths or in longer or shorter lengths. The lengths may be formed with indentations to represent gaps between the bricks for subsequent subdivision. The blocks may be formed of wood and the pegs of rubber or vice versa. The pegs may be of round, square, or other crosssection.
Patent GB-1217164-A (GB)
Title: Control of electric induction motors
Inventor: WILCOCK GEOFFREY WALTER
IPC: G01P3/42
Filed: 1967-04-27
Abstract: 1,217,164. Control of A.C. motors. MINISTER OF TECHNOLOGY. 26 July, 1968 [27 April, 1967], No. 19370/67. Heading H2J. Slip of an A.C. induction motor is controlled by an output frequency formed by compounding with the actual running speed of the motor an adjustable electrical reference frequency representing a desired slip. A squirrel-cage motor 1 driving a load 12 is supplied via an inverter or cycloconverter 2 controlled by an output, from a synchro-resolver 5, compounded from the motor speed and an adjustable reference frequency from an oscillator or other source 3. The output from winding 5c of device 5 is two-phase, and is converted to polyphase by a device 6 and passed to a device 7 incorporating electronic means producing a series of pulses applied to control the converter 2 to supply the motor winding 1a at a frequency resulting in the desired slip frequency in the circuit of rotor 1b. The composite frequency is supplied also to a frequencyto-voltage converter 8, and via a regulator 9, to the voltage control of the source 11, which is D.C. or rectified A.C., supplying inverter 2, to maintain the correct value of magnetic flux in the motor 1. The manual adjustment of adjuster 4 for source 3 and of regulator 9 may be by a common control 10. Step frequency is maintained constant at the value set by adjuster 4. There is also automatic adjustment of device 4 to vary the reference frequency as a predetermined function of the composite frequency, whereby the motor has a predetermined variable-speed characteristic instead of a constant slip, by applying the voltage output of device 8 to the device 4. Application to electric traction purposes is mentioned, and a plurality of traction motors driving separate axles can be controlled to run at related speeds with each, however, settling down to its own particular appropriate speed. Each motor has a separate inverter and control system, but the source 3 can be common and controlled by a voltage dependent upon the control frequency of a selected one of the inverters. The synchroresolver 5 may be geared to run at a multiple or sub-multiple of the motor running speed and, if an appropriate gear ratio is selected, can be replaced by a control transformer. The invention is applicable to braking of an induction motor running at hypersynchronous speed, the system maintaining a determined value of negative slip by decreasing the motor supply frequency to reduce its synchronous speed progressively to values below the running speed. The connections from source 3 to synchroresolver 5 are reversed and the system may be arranged so that the machine is working within the range at which it will regenerate.
Patent GB-1270305-A (GB)
Title: Improvements in vending machines
Inventor: COLLINS RONALD JUDAH
IPC: G07F13/06
Filed: 1969-04-16
Abstract: 1,270,305. Dispensing granular material. R. J. COLLINS. 16 April, 1969, No. 19398/69 Heading B8N. [Also in Divisions A4 and G4] A coin freed beverage dispenser comprises a plurality of reservoirs 4 each containing a constituent to be dispensed via respective metering mechanisms and spouts. Each metering mechanism comprises a butterfly valve 16 which may be moved into either of two positions by an over centre toggle arrangement 20A, 22, 24 operated by a knob 30. Every time a valve 16 changes position a predetermined quantity of the selected material is dispensed. A bar 40 has cut-outs arranged to engage the arms 24 of all toggles and thereby prevent dispensing from any of the reservoirs. Upon insertion of a coin through slot (6) (Fig. 1, not shown) an electromagnet 58 causes rod 52 to move a parallel linkage 50 leftwards so as to remove the bar 40 from arms 24 and allow materials to be dispensed for a limited timed period. The coin controlled time switch also allows hot water to be dispensed from a reservoir (32) (Fig. 1) via a manually operated tap 7. At the expiry of the timed period the electromagnet is de-energized and the bar 40 is returned to look arms 24 by spring 44. The locking bar, as shown, has two cut-outs (corresponding to the terminal positions of the toggle) per arm 24. It is stated that a mechanism having three " non-dispensing positions " could be envisaged.
Patent GB-1104484-A (GB)
Title: Improvements relating to endless track vehicles and idler wheel units therefor
IPC: B62D17/00
Filed: 1965-05-07
Abstract: 1,104,484. Endless track vehicles. ROBINNODWELL MFG. Ltd. 7 May, 1965 [15 May, 1964], No. 19453/65. Heading B7H. In a tracked vehicle, an idler track wheel is mounted at each end of a pair of transversely disposed, substantially parallel, elliptical springs by a yoke 10 connected to the spring ends 3. The wheel is mounted on a stub-shaft carried by a member 9 slidably supported in the yoke 10 and adjustable of the vehicle by means of a cylinder 12 and piston 15. The piston may be moved against the tension of the track by applying grease through a nipple 16.
Patent GB-716378-A (GB)
Title: Induction heating method and apparatus incidental to pressure welding seams of tubes
IPC: B23K13/02
Filed: 1951-08-17
Abstract: 716,378. Induction heating. DEUTSCHE EDELSTAHLWERKE AKT.-GES. Aug. 17, 1951 [Aug. 18, 1950], No. 19455/51. Class 39 (3) [Also in Group XXII] A surrounding inductor through which a tube is fed for heating its edges incidental to pressing and welding them to form a longitudinal seam, has a lateral loop of hair pin form extending along the edge of a length equal to a figure of 75 per cent. of the external diameter of the tube or equal to that figure plus or minus up to 15 per cent. thereof. A tube blank 1 is fed through an inductor coil 3 having a hair pin loop 4 extending along the edges 9 to be welded. Induction coils 10, 10<SP>1</SP> having laminated cores 12, 12<SP>1</SP> are provided in front of the coil 3 to preheat the edges 9. The coils 10, 101 may be connected in series or parallel and may be supplied from the generator supplying the coil 3 but are preferably supplied from a separate generator. The end 5 of the loop 4 is preferably arranged beyond the welding point 6.
Patent GB-410344-A (GB)
Title: Device for preventing the unexpected sudden penetration of water into rooms of different kinds, especially ships' rooms
IPC: B63G8/04
Filed: 1933-07-10
Abstract: 410,344. Operating and controlling ships' doors. SCHWEFEL, J., 15, Sch³ttelstrasse, Vienna. July 10, 1933, No. 19519. Convention date, Aug. 16, 1932. [Classes 44 and 65 (i).] In a door installation, particularly for the compartments of ships, in which the entry of water causes the release of devices holding one or more doors open so that these doors then close, two or more doors are connected together so that one closing also closes the others, but the arrangement is such that the doors can be operated independently. Fig. 1 shows the application to a submarine conning-tower with upper and lower hinged doors 5, 4, the lower door being provided with a closing spring 35, but being normally held open by a catch 34. Entry of water into a chamber 9 causes floats 24 to rise, lifting a ball 15 and thus allowing a second ball 26 to be pushed up by a spring 29 and to release the catch 34 by means of a cable 30. The door 4 is thus released and closes under the action of the spring 35, at the same time opening a valve 46, by a cable 42 and a linkage, to drain the water from the chamber 9. A cable 39 attached to a pulley fixed on the hinge shaft of the door 4 is also attached to a pulley which is free on the hinge shaft of the door 5, but has clutch engagement therewith. Closing of the lower door thus causes closing of the upper one, but by disengaging the clutch, which operation is effected by releasing the fastening of the door (not shown), the two doors are freed for independent opening.
Patent GB-147686-A (GB)
Title: Improvements in or relating to apparatus for grinding, crushing and dividing granular substances
IPC: B02C7/08
Filed: 1920-07-08
Abstract: 147,686. Antoine, V. July 14, 1917, [Convention date]. Disk mills.-In apparatus for grinding, crushing and dividing granular substances and comprising oppositely-rotating disks provided with removable working-segments, one of the disks is mounted on a ball-and-socket joint at the end of its driving-shaft and is subjected to the action of a lever loaded with an adjustable counterweigbt; the lever is adapted to act, according as to whether the disks are horizontal or vertical, either as a balancing means or as a direct pressure means for regulating the pressure of the disks against one another, the maximum and minimum distances between the disks being determined by an adjustable stop in the path of the loaded lever. The upper annular plate 9, Fig. 1, is connected to a funnel-shaped piece 8 carried by a cross-bar 7 the hub 6 of which can oscillate on a spherical part 5 at the upper end of the vertical shaft. 4. Teeth or projections 6<1> on the hub 6 engage in notches in a sleeve 6<2> keyed to the shaft 4. The lower annular plate 11 is carried by a sleeve 10, and the plates 9, 11 are driven in opposite directions by a belt 14 passing round pulleys 12, 12<1> on the shaft 4 and sleeve 10 respectively. The lower end of the shaft 4 rests on a lever 16 which is pivoted at 17 to the lower cross-piece 2 and acted upon by one or more weights 20 suspended from a cable 18 passing over a pulley 19 so as to hold the plate 9 at a distance, limited by an adjusting-screw 21, from the plate 11. Oil is supplied from a cup 23 to the sleeve 10 by a passage 24 in the shaft 4 opening into a groove 25 leading to a passage 26 in the sleeve. Segments 30 having teeth, grooves, &c. are secured to the plates 9, 11 by bolts 31 and nuts 32. The arms of the cross-bar 7 are triangular or trapezoidal so that the inclined faces act as a converging-screw for feeding the substance from the hopper 28 to between the plates 9, 11. Fig. 5 shows a modification with vertical plates, the substance being fed through a hollow shaft 33 and the plates 9, 11 driven in opposite directions by belts 44, 45 passing over pulleys 41, 43 on the shafts 33, 35 respectively.
Patent GB-1096718-A (GB)
Title: Method for forming welds between large tubular metal sections such as pipelines
Inventor: VERYARD KENNETH JOHN
IPC: B23K9/028
Filed: 1965-05-10
Abstract: 1,096,718. Welding by fusion. ESSO RESEARCH & ENGINEERING CO. May 10, 1965, No. 19676/65. Heading B3R. Pipes in end-to-end abutting relation are welded by cutting a groove or gap at the seam in one direction around substantially one half the circumference, initiating welding in the same direction not later than the completion of the groove or gap, completing the weld whilst simultaneously bringing a cutter idly along the un-cut section of the circumference to substantially the position where cutting started, and initiating cutting a groove or gap in the opposite direction immediately the weld has been completed. Welding is effected downwardly in both directions. The welder and cutter may be mounted on the same carriage. Alternatively two welding and cutting combinations may be used.