baber/WOPTO huggingface dataset:
Patent GB-516890-A (GB)
Title: Improvements in mounting racks for thermonic amplifiers
IPC: H05K7/20
Filed: 1938-07-12
Abstract: 516,890. Valve amplifying apparatus. STANDARD TELEPHONES & CABLES, Ltd., HODGSON, K. G., and LALANDE, M. A. July 12, 1938, No. 20661. [Class 40 (v)] The valves of an amplifier or similar thermionic valve apparatus are mounted between two panels forming a channel for the flow of air or other cooling medium, and the valve coupling elements are mounted on the outer faces of the panels. The main panel 3 of a three-stage amplifier is mounted on the girders 1, 2 of a rack. A sub-panel 4 is fixed to the main panel by metal supports 5 which also act as screens between the valves. The valves are mounted alternately on the panels and the tops of the valves project through holes in the panels; this enables short coupling connections, as for example, from the anode of valve 6 through coupling circuit 15 to the grid (top cap) terminal of valve 7. All components other than the valves are normally mounted on the outside of the panels and screens 19, 20, 21, 22 may be fitted. Screening of the valves may be improved by enclosing the space between the panels with wire mesh or perforated metal 12 at top and bottom. Air circulation may be assisted by a fan placed above or below the panel.
Patent GB-1008662-A (GB)
Title: Fuel systems for gas turbine engines
Inventor: CAMPBELL THOMAS
IPC: F02C7/22
Filed: 1961-06-08
Abstract: 1,008,662. Gas turbine plant. JOSEPH LUCAS (INDUSTRIES) Ltd. May 31, 1962 [June 8, 1961], No. 20698/61. Heading F1G. In a gas turbing engine fuel system comprising an engine driven fuel pump having a variable metering orifice, the size of which depends on the engine speed and compressor pressure, the system is combined with a piston type spillage valve located between the pump and the variable orifice, one end of the piston valve being subjected to pump output pressure while the other end is subjected to the combined action of the fuel pressure downstream of the metering orifice and the engine speed. The pump outlet 5 leads to two main branches 7, 8, the former leading to the variable orifice which comprises an apertured axially moveable rotating tube 9 and a stationary aperture, the size of which depends on the axial position of a sleeve 12. A centrifugal governor 17 acts on the sleeve 12 and the tube 9 is axially responsive to the outlet pressure of the first-stage compressor of the engine through a bellows 14. The chamber 15 is subjected to the second-stage or final compressor delivery pressure. The sleeve 12 is loaded by a spring 16, the load being manually variable, and is movable thereagainst by the governor 26. From the aperture 10 in the tube 9 fuel flows to a chamber 19 and from thence through a passage 20 to the pilot burners, through the passage 21 of a rotary, axially spring loaded, ported member 23 to the main burners, and through a passage 25 leading to a chamber 26. The governor 27 acts upon a piston type spill valve 28 and the governor action is opposed by fuel pressure in the branch 8 thereby axially locating the sleeve with respect to the spill ports 29.
Patent GB-422404-A (GB)
Title: Electrical vacuum cleaner
IPC: A47L9/22
Filed: 1934-03-02
Abstract: 422,404. Motor supports. GRAVE, O., 67, Hobrechtstrasse, Neukolln, Berlin. March 2, 1934, No. 20749. Divided out of 419,702. [Class 35] A vacuum - cleaner motor unit is freely suspended in a region between its ends in an intermediate housing by means of a resilient support and the intermediate housing is resiliently supported in the cleaner casing. In the form shown, the rubber ring 13 grips the flange 12 on the motor fan unit 11 and is held between the two parts 1, 2 of the inner casing which is supported in the insulation covered casing 5 by the rubber ring 14 and the rubber buffer 16.
Patent GB-148939-A (GB)
Title: Improvements in or relating to reflecting signals
IPC: B62J6/20
Filed: 1920-07-10
Abstract: 148,939. Larkin, W. May 4, 1918, [Convention date]. Reflector signals; road signals; road traffic signals on vehicles; signalling proximity of vessels and land.-Relates to reflectors for use on roads, railways, or shore-lines, or as tail-lights or in illuminated signs. The reflector consists of two conical surfaces 3, 4, and in front of it is fixed a transparent panel comprising a clear peripheral zone 7, and a coloured centre 6 which substantially covers the inner reflector 4. Rays entering the clear zone 7 are partly transmitted through the coloured zone 6, and partly reflected back thereby so as to leave the device through the zone 7. The whole surface appears coloured.
Patent GB-845725-A (GB)
Title: Variable speed control for spinning and similar machines
IPC: F16H61/662
Filed: 1957-07-02
Abstract: 845,725. Spinning &c. machines. SHUFORD MILLS Inc. July 2, 1957 [Jan. 22, 1957], No. 20842/57. Class 120(2). [Also in Group XXIV] In a spinning &c. machine having a reciprocating traverse and winding spindles driven from a common shaft, a variable-speed drive is coupled to the shaft and is operated by a fluid-pressure system including a regulator valve, means being provided which respond to movement of the traverse in one direction to open the valve and to movement in the opposite direction to close it. In the ring-spinning machine shown, packages are wound on bobbins having cone-shaped lower portions so that the diameter of the package decreases on the up-stroke and increases on the downstroke of the traverse; the aim being to decrease the speed of winding on the up-stroke to avoid placing the yarn under tension, and to increase the speed on the down-stroke. The spindles and the builder-motion are driven from a shaft 16 to which a variable-speed drive is transmitted from a motor 60 through pulley pairs 74, 61 ; the upper pair are each of the expanding-type described in Specification 845,722 and the motor is resiliently mounted e.g. as described in Specification 845,724. The pulleys 61 expand or contract under control of a piston on a cylinder 102 which in turn is controlled by a valve 120 operated by a lever 150 linked at 151 to a pivoted extension of the arm of the builder motion at 30, which extension moves down as the arm moves up with each downward movement of the ring-rail and vice versa. With each down movement of the extension the link is pulled to move the arm 150 to the right and gradually to open the valve 120 and admit air under pressure to the cylinder 102 to enlarge the effective diameter of the pulleys and increase the speed of the drive. With each up movement of the extension, a spring 154 in the link, tensioned during the down stroke, is relaxed to allow the arm 150 to move to the left and close the valve, whereby the air supply is cut off and a subsidiary valve opened gradually to exhaust the pressure in the cylinder. The subsidiary valve is adjustable to determine either the maximum or the minimum spindle-speed; in the one case it can be adjusted to open to exhaust the pressure when it attains a level to correspond to the desired maximum speed; in the other case, it can be adjusted to close when the pressure falls to correspond to the desired minimum speed. The maximum and minimum speeds may also be determined to some extent by the stroke of the piston. When it is desired to build "bunches" at the foot of the spindle instead of using bobbins with coneshaped bottoms, the valve 120 is caused to remain open for winding to proceed at uniform minimum speed. To this end, the link 151 can be disconnected: or a valve can be interposed on the pressure line to be opened by a solenoid through a switch which is operated only after the desired number of strokes have been made by the traverse.
Patent GB-1349789-A (GB)
Title: Scoring sheet metal
IPC: B21D51/38
Filed: 1971-04-19
Abstract: 1349789 Making tearing lines for opening RASSELSTEIN AG 19 April 1971 [6 Feb 1970] 20884/71 Heading B3J A die 7 for forming a line of weakness in sheet metal 8 comprises an end face 9 bounded by lateral faces 6 which slope at an angle (α3) of 16-45 degrees, e.g. 26 degrees, so as to exert a wedging action for tensioning the sheet beneath the die. The end face 9 may be inclined at a small angle α4 and the anvil 10 may have a raised abutment surface (11), Fig. 4 (not shown).
Patent GB-1274805-A (GB)
Title: Electrical coupling
IPC: H02G15/18
Filed: 1970-04-30
Abstract: 1,274,805. Jointing by stamping. THOMAS & BETTS CORP. 30 April, 1970 [17 June, 1969], No. 20920/70. Heading B3Q. [Also in Division H2] A coupling between two electrically conductive members 12, 14 is made by inserting a bare end of each conductor into a respective end of an inner sleeve 30 of electrically conductive malleable material and forcing incompressible material through a port 52, into a sealed space 46 between the inner sleeve and an outer rigid sleeve 44 until the inner sleeve is deformed to grip the inserted conductors. Incompressible materials such as a tube or wrapped strip of a high dielectric elastomer 48 and uncured silicon 50 may be used to prefill the space 46. The inner sleeve may be aluminium and may be provided with a centre stop 32, an inner serrated surface 34 and, at each end, a shoulder 38 to abut an anti-collapse ring 40. The outer sleeve 44 may be of aluminium or cured fibreglass and has at each end an extension ring 54 which is glued in position. A plug 24 may be used to seal the port 52.
Patent GB-948733-A (GB)
Title: Improvements in and relating to remotely controlled gas-operated grabheads
Inventor: CREEAR REGINALD WILLIAM
IPC: G21C19/105
Filed: 1959-06-19
Abstract: 948,733. Remotely controlled grippers for lifting articles. ENGLISH ELECTRIC CO. Ltd. June 17, 1960 [June 19, 1959], No. 21121/59. Heading B8H. [Also in Division G6] In a remotely-controlled grab-head a remotely-controlled valve 41 controls the flow of gas from a reservoir 12 to actuating mechanism 43 which moves jaws 11 between gripping and non-gripping positions. The reservoir 12 is charged through a non-return valve 16 by temporarily enclosing the grab-head in a vessel containing gas under pressure. In operation, an electrically-controlled valve 33 is energized to admit gas from the reservoir 12 to a cylinder 22, thus moving a jaw carrier 20 down to its lowest position so that the jaws are as shown in dotted lines. The grab-head is lowered until a lower contact ring 48 of a probe 47 engages with a contact ring 54 in a socket 53 in a fuel element 10. The valve 41 is next energized to admit gas to a chamber 36, thus lowering the actuating mechanism 43 which forces the jaws inwardly to engage their hooked ends 50 in the annular recess 51. This downward movement also inserts the probe 47 further into the socket 53, thus engaging the lower contact ring 48 with a contact ring 56, and the upper ring 48 with the ring 54. These contact rings operate indicators for the operator of the grabhead. The valve 33 is now de-energized and gas is exhausted from the cylinder 22 as the jaw carrier 20 and the actuating mechanism are raised by a spring 30, with the hooks 50 engaged in the recess 51. The valve 41 is then deenergized but the mechanism 43 remains in the extended position owing to the self-gripping action produced by the shape of the jaws. When the element 10 is placed on a supporting surface the self-gripping action is released and a spring 38 raises a cam 44 to open the jaws. In a second embodiment the spring 38 is disposed above instead of below a piston 37, thus holding the jaws closed, the jaws being opened by gas pressure acting beneath the piston 37.
Patent GB-154147-A (GB)
Title: Improved holder for the cover brick of a crucible hole
IPC: F27B14/12
Filed: 1920-07-13
Abstract: 154,147. Silvester, W. H. July 13, 1920. Lids and covers.-To make the fire-brick of a crucible-furnace cover readily replaceable, the sides 1, 3 of the frame are detachably connected to the sides 2, 4 by T-headed lugs, which engage in slots in the sides. The lug shanks enter enlarged portions of the slots, are rotated through 90 degrees, and then slide outwards. A fire-brick is clamped in the frame by a plate 11 operated by a bolt 10 engaging a tapped hole in one side. The bolt-head 12 has several intersecting tommy-holes, and the hole for the time being at right-angles to the cover also serves to receive, at either opening, the end of the canting lever 14.
Patent GB-168591-A (GB)
Title: Improvements in or relating to life saving appliances
IPC: B63C9/105
Filed: 1921-08-09
Abstract: 168,591. Souliotis, K., and Antonakis, J. C. Aug 23, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Body attachrnent.s, inflatable and buoyant; inflating. - In a waterproof life-saving suit, the front opening 2 in the body piece 1 is provided with a gusset 9 of sufficient width to permit donning of the garment and attached at each side of the opening so as to prevent ingress of water. The upper portion of the gusset, held close to the hood 10 by straps 11, serves to protect the face of the wearer from the waves. When in use, the front opening is closed over the gusset by fastenings 8. The sleeves of the suit terminate in elastic cuffs 6 for preventing ingress of water at the wrists. For maintaining the wearer in an upright position in the water, weighted angle-straps 7 are provided. Buoyancy is obtained by securing around the waist of the wearer a buoy comprising two sections 12, each having radially-projecting enlargements 13 for giving stability and providing protection against blows from floating timber &c. The buoy is secured in position by straps 17 passing between the legs of the wearer and a strap 18 passing round the neck. When an inflatable buoy is used, the parts 12 form separate air chambers, and are each provided with an inflating-tube 30 having a valve 31 and an auxiliary inlet tube 32 adapted for attachment to a compressed-air ccntainer. The Specification states that the suit may also be provided with food, water, and signalling apparatus.
Patent GB-408128-A (GB)
Title: Improvements in or relating to apparatus for reproducing on incandescent lamp screens pictures derived from cinema films
IPC: G09G3/00
Filed: 1932-12-07
Abstract: 408,128. Monogrammic signs. ROSENBERG, H., 7, Parkstrasse, Dahlem, Berlin. Dec. 7, 1932, No. 21169/33. Divided on an application under which a Specification was laid open to inspection under Sect. 91 of the Acts, June 9, 1933. [Class 118 (ii).] The invention relates to a system in which pictures on a continuously moving film or band are reproduced for viewing on a screen of incandescent lamps which are selectively illuminated under the control of photo-electric cells cooperating with the film or band. The number of cells is arranged to correspond to the number of lamps in a horizontal row of the lamp screen, and each cell is sequentially connected to the lamps of an associated vertical row. The row of cells is located behind a slit past which the film moves and each cell 1 of the row is sequentially associated through the arm 261 and contacts 26 with relays 25 individually controlling the switching on of lamps in the corresponding vertical row. Each relay 25, when energized closes a holding circuit through its winding 2 to maintain its associated lamp illuminated until it is to be controlled by the corresponding element of the succeeding picture. The interruption of the holding circuit is effected by a member 38 which rotates, in synchronism with the arm 26<1>, over contacts 36 each connected to a horizontal row of lamps and which has a gap 36<1> equal to or greater than the distance between two contacts 36 so that the horizontal rows of lamps are switched off in succession. Alternatively each row of lamps may be associated with an electromagnet which in its de-energized condition maintains the lamp circuits closed when the lamps have been illuminated and when operated breaks the circuits of the lamps and of the holding windings. The pictures for transmission may be formed by perforations on the control band or film.
Patent GB-574436-A (GB)
Title: Improvements in or relating to root vegetable cutting machines
IPC: B26D3/18
Filed: 1943-12-17
Abstract: 574,436. Cutting vegetables &c. LYONS & CO.. Ltd., J., and SNELL, A. W. Dec. 17, 1943, No. 21212. [Class 5 (i)] Knives carried by a pivoted quadrant B which is reciprocated across the base of a hopper A cut vegetables and discharge them on to a conveyer F. The quadrant and the conveyer are both actuated from the shaft N, the quadrant by crank and connecting rod, and the conveyer by a chain. A double-acting knife C is mounted on and parallel to the surface of the quadrant, and subsidiary knives D depend at right angles from the knife C. Fingers E projecting from the hopper at each end engage between the knives D and cause the cut material to be ejected through an opening in the quadrant. The ends of the hopper are hinged and connected by links H and a member J which shears under excessive stress, such as might be caused by stones &c. in the hopper.
Patent GB-759317-A (GB)
Title: Area measuring apparatus
Inventor: LOESCHER FRIEDRICH AUGUST
IPC: G01B5/26
Filed: 1954-07-21
Abstract: 759,317. Area-measuring machines; counting-apparatus. MASCHINENFABRIK TURNER AKT.-GES. July 21, 1954, No. 21268/54. Class 106 (1) An area-measuring machine comprises measuring wheels, each associated with contacts which are closed a number of times proportional to the number of revolutions of the wheel and with a condenser which is charged at each operation of the contacts, and a condenser common to all the wheels which receives the charges of the other condensers. The work 2 to be measured passes between a driven roller 1 and equally-spaced measuring wheels 3 which are independently mounted on arms 4. Each wheel carries radial pins 27 which on engaging the work move inwardly and rock a contact plate 7 carried by the arm 4 so as to break a charging circuit for the associated condenser 14 extending through contacts 9, 11 and to make a circuit through contacts 9, 10 connecting the condenser 14 to a large condenser common to all the wheels. The potential drop across the large condenser, after a measuring operation, corresponds to the area. In one arrangement, Fig. 3, on operation of a switch 42, a pulse generator 48 associated with a counter 49 is, by means of a relay 46 having contacts 47, operated, or connected to the counter, for a period proportional to the number of charges previously received by the large condenser 19 from the small condensers 14. The relay 46 is controlled by a discriminating circuit 45 which energizes the relay when a lead, connected to the switch 42 and through a resistance 43 to a negative potential, is positive. On operation of the switch this lead is connected also to the condenser 19 through a condenser 41 and so becomes positive and remains so for a period depending on-the charge of the condenser 19 and the time constant of the circuit 41, 43. The counter may alternatively be operated for a period controlled by the discharge of the condenser 19. In a further arrangement, Fig. 4, on receipt of a predetermined number of pulses, the potential drop across the condenser 19 is sufficient to fire a gas-filled triode 50, the control grid of which is connected to a potential-divider 51, 52, 53 extending from the condenser 19 to a negative potential. The condenser 19 then discharges and a counter 49 is actuated. Prior to an operation, a switch 40 is closed to cause the condenser 19 to receive an initial charge which determines the number of charges that that condenser will receive prior to the first discharge. Grand total counters may be provided.
Patent GB-243824-A (GB)
Title: Means for automatically adjusting the head lamps of motor vehicles
IPC: B60Q1/124
Filed: 1924-09-09
Abstract: 243,824. Papini, R. Sept. 9, 1924. Vehicle lamps, directing.-Means for directing vehicle lamps from the steering-gear comprises a plate spring a, slidably supported in the head h' of a pin h, mounted rotatably in an arm n fixed on the front axle s, and pivoted at one end to an arm m, secured on the connecting-rod x, and bent and connected at the other end to a lamp holder l, rotatably mounted in a support S secured by a flange t to the chassis. The lamp holders may be connected by arms b and a rod z or may each be operated by a separate spring a. The axis of rotation of the pin h is in a line with the axis of the lamp holder, the pin being retained in a socket in the arm n by balls g<1> pressed by a spring g into a groove in the socket. The spring a engages a groove v<1> in the lamp holder having slightly recessed cylindrical side surfaces to prevent transmission to the lamps of slight movements of the spring due to unevenness of the road, the lamp holder being restored to, or retained in, the named position by balls i pressed outwardly by pistons g and a spring p into grooves in the support S diminishing in depth from the centre towards the ends.
Patent GB-830347-A (GB)
Title: Process for the bacterial treatment of cellulosic materials
IPC: D01B1/48
Filed: 1956-07-10
Abstract: Cellulosic fibrous material such as wood chippings, cereal straws, bagasse &c. is preserved by impregnation with water containing (a) lactobacteriacae culturer upon the material itself at a temperature of 105-115 DEG F. so that unwanted bacteria are overwhelmed, (b) an independently prepared culture of other lactobacteracae which are selectivity active within the temperature range extending from the lower limit to be experienced during treatment up to the lower limit at which the first culture is active and (c) a nutrient if necessary. The first culture may be selctively active between 38 and 62 DEG C., the second culture, which may be prepared from milk, being selectively active between 28 and 40 DEG C.  The material to be treated is impregnated with water containing the two cultures and molasses until the liquid/solid ratio is as high as possible (for bagasse it should be 3 : 1 to 4 : 1), and is then stacked and drained.  With bagasse &c., the stack is compacted to reduce the quantity of air present and keep the temperature below 110 DEG F. Subsequent compaction and application of water may be used to keep the temperature down. With wood chippings, the stack is covered with a 6 inch layer of sawdust and kept damp to maintain the temperature below 120 DEG F.