baber/WOPTO huggingface dataset:
Patent GB-707044-A (GB)
Title: Improvements relating to the separation of sheets of paper or the like from the top of a pile
IPC: B65H3/08
Filed: 1950-05-10
Abstract: 707,044. Feeding sheets. BACKHOUSE, H. T. May 9, 1951 [May 10, 1950], No. 11692/50. Class 100 (1) Sheet-separators.-Relates to a sheet-separator of the kind wherein a suction head 18 is lowered on to the uppermost sheet in a pile, and is elevated by the suction created in a cylinder 5 due to the closing of the suction grippers 19 by the sheet, the lifted sheet being then traversed laterally to a discharge point where the suction is destroyed by the opening of a valve 30, as is described in Specification 674,843. According to the invention, the suction head is lowered by a cam-actuated pivoted lever 10, 12, to which the piston rod is pivoted at an intermediate point, whereby, after seizing the sheet, the head is elevated pneumatically more rapidly than it is lowered mechanically. The device is mounted on tubular cross-bars 2, 3 above a pile 1 and comprises a housing 4 in which are journalled a shaft 11 forming a pivot for the bell-crank lever 10, 12 and a driven shaft 15 carrying cams 14 (not shown), 39 and 67. The arm 10 of the lever is bifurcated and carries at one end a parallellink structure 16, 17, supporting the suction-head 18, the piston rod 7 being pivoted between the bifurcated parts in a cross-head 8. The arm 12 of the bell-crank carries a roller 13 engaging a cam 14 (not shown) on the shaft 15, to lower the head slowly. The lateral movement of the head 18 is derived from a cam 39 engaging a roller 38 on an arm 36 connected to the parallel links 16, 17. A further cam 67 controls the raising of parallel links 60, 61 carrying a presserfoot 62. and air-blast nozzles 63. Spring-blades 50 depend from a fixed part of the housing. The operation is as follows: the cam 67 raises the foot 62 and the nozzles 63 emit an air-blast to fluff up the edges of the pile; the head 18 is lowered slowly and seizes the fluffed-up top sheet in mid-air, retracting, immediately under the action of the piston 6, so that the sheet is bent by. contact with the blades 50 ; a stop 32 then contacts the valve 30 to cut off the suckers 19 from the cylinder 5 and a further blast is directed below-the top sheet to separate adherent lower sheets ; the cam 67 then lowers the foot 62 to clamp the remaining sheets and the cam 39 moves the head 18 laterally until contact between a stop 31 and the valve 30 opens the system to the atmosphere, permitting the release of the sheet. During the subsequent return of the head the slide-valve 30 again moves to open the cylinder 5 to the atmosphere and permit the fall of the piston. Specifications 674,888, 692,034, and 707,043 also are referred to.
Patent GB-572713-A (GB)
Title: Improvements in or relating to apparatus for controlling the release of bombs or thelike from aircraft
IPC: B64D1/04
Filed: 1943-07-19
Abstract: 572,713. Bomb-dropping apparatus. AUTOMATIC ELECTRIC LABORATORIES, Inc. July 19, 1943, No. 11710. Convention date, July 18, 1942. [Class 9 (ii)] Apparatus for dropping bombs from aircraft at timed intervals under the control of an adjustable electronic timing device has a number of scales each graduated in bomb-hit spacing for a given ground speed of the aircraft and arranged to co-operate with a pointer movable by a control member which adjusts the period of the timing device. The electric circuits whereby a predetermined number of bombs may be dropped individually under the direct control of the bomb-aimer, or serially as a train under the control of the timing device are generally as described in Specification 572,648. The rheostat 102, whereby the time constant of the circuit governing the periodicity of energization of the relay 150, and hence the bomb-hit spacing, is adjusted, is formed, however, as a longitudinal member 301, Fig. 3, carrying a uniformly wound resistance 309 which is swept by a wiper 311 mounted on a carriage 310 traversed along guides 304 by a cord 307 on pulleys 305, 306, one of which is manually controlled by a rotatable knob to adjust the position of the carriage. A pointer 313 on the carriage registers with any selected one of a number of scales on a drum 315, each scale being graduated in the bomb-hit spacing corresponding to the ground speed, marked at the end of the scale.
Patent GB-1481644-A (GB)
Title: Rotary kiln provided with planetary cooling tubes
IPC: F27B7/40
Filed: 1975-03-21
Abstract: 1481644 Rotary kiln with planetary cooling tubes POLYSIUS AG 21 March 1975 [17 April 1974] 11832/75 Heading F4B A rotary kiln (1), Fig. 1 (not shown), has planetary cooling tubes 2, each tube 2 being connected with the kiln via an inlet tube 4 mounted on the kiln and a transition member 3 acting as an inlet shoot to the cooling tube. Each transition member 3 comprises a frustoconical portion whose larger cross-section end is circular. The frusto-cone has straight line generatrices 9, 10 which are tangential to the inlet tube 4. As shown the tube 4 is of elliptical cross-section but it may be circular. A control dam 16 with an edge 17 prevents return of material from the transition member 3 into the kiln during rotation of the kiln.
Patent GB-1022101-A (GB)
Title: A new or improved sheet material which incorporates a thermoplastic substance
Inventor: CHISHOLM WILLIAM DOUGLAS
IPC: D21H25/04
Filed: 1961-04-04
Abstract: 1,022,101. Laminates. H. FLEEMANHARDWICK. April 2, 1962 [April 4, 1961], No. 11953/61.. Heading B5N. Laminated sheet material usable as an underlay for asphalt mastic comprises two or more sheets of paper interlaid with plastic sheets or coatings, e.g. of polythene, polypropylene or P.V.C., and embossed to provide protuberances (and corresponding depressions) on both faces. In an example, three paper layers and two interposed plastics layers are pasted together between heated embossing rollers.
Patent GB-1103452-A (GB)
Title: Improvements in or relating to multistage distillation apparatus
Inventor: WILLIAMSON WILLIAM RODGER
IPC: B01D3/06
Filed: 1964-03-20
Abstract: 1,103,452. Evaporators; multi-stage flashtype; desalination of water. AMERICAN MACHINE & FOUNDRY CO. 15, March, 1965 [20, March, 1964], No. 11954/64. Heading B1B. Water is desalinated by distillation in a series of flash evaporator stages 11 . . 18 each housing a condenser coil in which the feed water is heated, the water being further heated, before being introduced into the flash stage of highest temperature, by using it as cooling medium in the coil of a condenser 48 in which is condensed the vapour of a fluid, such as dichlorodifluoromethane, which circulates around a secondary system comprising the condenser 48, evaporator 29, compressor 60, expansion valve 63 and automatic control 65. Salt water is introduced into the system through pipe 19 and enters open tank 21, which may contain Rasching rings. The water is pumped from tank 21 through condenser coils 25, 26, 27 of stages 18, 17, 16. The salt water then flows through pipe 28 which passes through evaporator 29 where it causes the evaporation of the secondary heat transfer liquid. The water is returned to tank 21 through eductor 31 which aspirates air and carbon dioxide from the condenser section of stage 18. Excess water is discharged through pipe 34. Some of the circulating water is drawn off through pipe 36 and valve 35 into the flash evaporator section of stage 18, where it mixes with brine. Water is drawn from this flash stage through pipe 39 into surge tank 40, from which the water flows through pipe 41 to the condenser coils 42 . . 46 in stages 15, 14, 13, 12, 11. From coil 46, the water flows through pipe 47 in condenser 48 where it is heated to at least 140‹F. in heat exchange with the condensing heat transfer vapour. The temperature of the water is controlled by automatic valve 50 which admits it to flash stage 11. The steam evolved in the flash stages passes through wire mesh droplet separators and condenses on the adjacent condenser coil. The condensate, i.e. desalinated water, is withdrawn by pump 53. A suction pressure control 68 regulates the amount of feed water introduced into tank 21 through pipe 19 and valve 20. At intervals, sediment such as CaSO 4  is discharged from tank 40. In a plant suitable for the distillation of water from a deep well under pressure, the evaporator of the secondary heat transfer system is heated by the brine leaving the last flash stage. The brine then flows through a gas-eductor and returns to the open feed tank. In a third embodiment, the distillate and plant are deaerated by an eductor operated by a stream of cooled distillate. The concentration of radioactive wastes is referred to.
Patent GB-1376540-A (GB)
Title: Web handling apparatus
IPC: G03B21/32
Filed: 1972-03-15
Abstract: 1376540 Cinematography EASTMAN KODAK CO 15 March 1972 [15 March 1971] 12164/72 Heading G2E In a web handling apparatus, e.g. a cine projector, in which a web F is to be guided from threading channel 32, 34 to take-up reel hub 20, two web paths are provided. One is via link 36 and an arm 52 pivoted about 54 and the second is direct and represented by web F<SP>1</SP> in Fig 1. The path taken depends on the tension of the web which pivots snubber 44 against spring 48 to switch the web from the first to the second path. Fig. 1 shows part of a cine projector having horizontal plates 10, 12 and a reel 14 having flanges 16, 18, the reel being inclined relative to these plates. The link 36 is of a J-shaped cross-section having high and low walls 38, 40 respectively, the wall 40 having a taper 42 and a tab 58 is fitted adjacent to it. The taper 42 and tab 58 aid the web F to ride over the wall 40 so that as web tension increases, e.g. after the leading end of web F is attached to the projections 30, the web can be fed via the direct second path. When the web F has  completely peeled off the link 36 the web tension acts on the snubber 44 to move it to the position shown in phantom. The arm 52 is of T-shaped cross-section, the stem 60 of the α strengthening the arm.
Patent GB-663066-A (GB)
Title: Improvements relating to the dyeing or other treatment of textile and like materials
Inventor: HANNAY ROBERT STEWART ERSKINE
IPC: D06P1/22
Filed: 1948-05-04
Abstract: Fabrics, webs, sheets and the like made of natural fibres or artificial materials are dyed by treating them with a liquor containing a hydrosulphite, e.g. a vat or sulphur dye bath, and an antioxidant such as a reducing sugar, benzaldehyde, tannic acid or gallic acid, and are then heated by passing them through a bath of molten metal as described in the parent Specification.  The treating liquor may be floated on the surface of the molten metal. Examples are given of vat dyeing in which the dye liquors used contain glucose, benzaldehyde and tannic acid.
Patent GB-1461553-A (GB)
Title: Self-inflating structure
IPC: B63C9/18
Filed: 1975-03-24
Abstract: 1461553 Mattresses; absorbent bed pads PROCTER & GAMBLE CO 24 March 1975 [29 March 1974] 12228/75 Headings A4J and A4M [Also in Divisions A5 B1 B5 and B7] A self-inflating structure (see Division B1) is used in an absorbent composite structure 30 as an absorbent bed pad. The structure comprises selfinflating pillows 21 with a pad 31 of absorbent material having a plurality of spaced apertures defined by walls 33. An impervious plain lamina 22 prevents urine from soaking the bedding below the bed pad. Urine passes through the liquid permeable but gas impervious lamella 23 and reacts with the gas-cooling material which inflates the pillows 21. The user's body weight is supported by the inflated pillows after being wetted allowing the absorbent pad (e.g. creped cellulose wadding, hydrophilic fibre aggregates, hydrophilic foams) to absorb more liquid than when compressed.
Patent GB-931463-A (GB)
Title: A profile transferring device
IPC: G01B5/20
Filed: 1961-04-07
Abstract: 931,463. Profile transferring devices. E. F. MADDEN. April 3, 1962 [April 7, 1961], No. 12535/61. Class 106 (2). A profile transferring template comprises a series of rods 7 axially slidable between upper and lower housing members 2, 3 containing friction means such as a length of rubber tubing 12 to hold the rods in an adjusted position. As shown in Fig. 9 the rods may ride between rollers and be looked in position by a rotatable cam 47 which slightly bends them. Fig. 6 shows two devices hinged together to give an increased gauging range. Individual devices may be adapted for joining together to form a series.
Patent GB-1248916-A (GB)
Title: Improvements in or relating to neutron radiography
Inventor: SPOWART ALEXANDER ROLLO
IPC: G01N23/09
Filed: 1968-03-14
Abstract: 1,248,916. Detecting neutrons. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 20 Feb., 1969 [14 March, 1968], No. 12540/68. Heading G6P. In a neutron radiographic system, a polychromatic neutron beam is directed on to the object, after filtering through cadmium. Neutrons having energies above 0À4 e.v. are, therefore, directed on to the object and greater penetration is achieved, than by thermal neutrons. This is effected as the cross-section of certain materials decreases in the neutron energy band above the thermal value. Detection of the neutrons is effected by indium using a "transfer" technique which is gamma sensitive.
Patent GB-162658-A (GB)
Title: Low-water alarm for steam-boilers
IPC: F22B37/47
Filed: 1921-05-02
Abstract: 162,658. Leavitt, J. A. May 2, 1921. Alarms, low-water.-A lowwater alarm for steam boilers comprises a plug N fitted to the crown B, having circumferential openings 0 and downwardly extending openings Q communicating with the fire-box, a filler P of fusible material, a pipe M connected to the plug and passing through the top of the boiler, a pointed rod L mounted in the pipe and fitted with a shoulder K and engaged by a spring J engaged in turn by an adjustable screw G fitted to a cage C mounted on the top of the pipe, and a pipe D leading from the cage to a piston fitted to a valve R in the fuel supply pipe U normally held open by a spring, the pipe D being also fitted with a whistle E. When the water falls to a dangerous level, the temperature of the plug rises sufficiently to fuse the filling P, the rod L breaking through any scale formed thereon. Steam enters the pipes M and D, sounding the whistle E, and shutting the valve R, at the same time steam and water being blown into the furnace through the openings O.
Patent GB-1459729-A (GB)
Title: Apparatus for storing fishing line
IPC: A41D13/00
Filed: 1975-03-26
Abstract: 1459729 Aprons R BATEMAN 26 March 1975 12625/75 Addition to 1289778 Heading A3V The apron of Specification 1289778, for storing fishing line, includes a flat tray 11 having a panel 22 of net or like material. A pocket 26 is provided.
Patent GB-418990-A (GB)
Title: Improvements in or relating to electron discharge devices or valves
IPC: H01J19/00
Filed: 1933-05-02
Abstract: 418,990. Thermionic valves. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. May 2, 1933, No. 12826. Convention date, May 2, 1932. [Class 39 (i).] In a valve having a cathode structure R K according to Specification 418,132 consisting of an electron-emitting element and two grids for regulating the electron density and velocity, a system of rods or plates GA, GB is so arranged between the cathode structure and the anode A that a field can be applied at right angles to the path between the cathode structure and the anode so as to deflect the electrons. Control of the electrons is thus effected at the region where their speed is low. Alternate rods &c. may be connected together, the connections to the two sets being taken through the envelope separately. A negative bias is applied to one rod &c. or set of rods &c. G B, so that electrons cannot be collected by that rod &c. Input voltages are applied to the rods &c. G B and electrons are deflected to the rods G A. The electron density and velocity from the cathode structure should be such that the dependence of the anode current on the voltage on the rods G B is a maximum.
Patent GB-201658-A (GB)
Title: An improved device for the support of the body and feet
IPC: A47C16/00
Filed: 1922-05-06
Abstract: 201,658. Hodges, H. May 6, 1922. Parcel and like carriers.-A device for supporting the body in a sitting posture is stated to be capable of use as a holder for rugs or wraps, the footboard serving as a handle. It comprises a flexible member f connected by cords c to a footboard a. The cords are adjustable by tent runners d.
Patent GB-1068252-A (GB)
Title: Improvements in and relating to lighting control apparatus
IPC: B60Q1/14
Filed: 1963-04-02
Abstract: 1, 068, 252. Photo-electric control of vehicle lighting. J. HAYES and D. J. D. BROWN. March 25, 1964 [April 2, 1963; Sept. 20, 1963 ], Nos. 12970/63 and 37061/63. Heading G1A.  In an arrangement for dipping the headlamps of a vehicle on the approach of another vehicle, a photo-resistance 1 mounted in a forward-looking position controls through a two-stage transistor amplifier 4, 5 a relay 10 operating change-over contacts 12, the amplifier being such that the light-level required to hold the relay is considerably less than that required to operate it initially. The resistor 15 produces a degree of negative feedback and tends to stabilize the amplifier besides reducing the effects of temperature. The potentiometer 6 provides a sensitivity control. The normal dip switch 13 is effective when the relay 10 is inoperative.
Patent GB-258315-A (GB)
Title: Improvements in thermionic amplifiers
IPC: H03F3/36
Filed: 1925-05-18
Abstract: 258,315. Smith, S. B. May 18, 1925. Thermionic amplifiers.-In a multi-stage thermionic amplifier suitable for operating telegraphic relays &c., an adjustable grid-bias for each of the separate valves is derived from a single common battery B3 through resistances or impedances r1, r2 arranged in parallel with the anode resistances R3. The tapping-points from the battery to the three valves t1, t2, t3 are shown at T1, T2, T3 respectively. The value of the potentiometer resistances r1, r2 should be high in comparison with the anode resistance R3, and the dividing point P leading to the grid is adjustable. A stabilizing condenser C may be connected across the anodes of the valves t1, and t3.
Patent GB-406510-A (GB)
Title: Improved method of rolling metal
IPC: B21B37/48
Filed: 1933-05-04
Abstract: 406,510. Rolling. McBAIN, W. C., 1054, Mahoning Avenue, Youngstown, Ohio, U.S.A. May 4, 1933, No. 13035. [Class 83 (iv).] In pulling cold strip metal between driven or non-driven working rolls and tensioning at both sides as in a mill described in Specification 292,494, [Class 83 (iv)], the restraining tension is between 10 and 25 per cent of the elastic limit and the roll pressure is less than 95 per cent of the pressure required for the same reduction with no pull on the strip. Specifications 281,364, [Class 83 (iv)], and 340,933 also are referred to.
Patent GB-437608-A (GB)
Title: Improvements in or relating to envelope or bag making machinery
IPC: B31B19/00
Filed: 1934-05-01
Abstract: 437,608. Making bags &c. DICKINSON & CO., Ltd., J., Apsley Mills, Hemel Hempstead, Hertfordshire.-(Assignees of Novick, A. ; Flushing, New York, U.S.A.) May 1, 1934, No. 13045. Convention date, Dec. 12, 1933. [Class 94 (ii)] An envelope or bag making machine comprises in combination a feeding cylinder 7, a gripper 22 carried thereby, a conveyer 32 running substantially tangentially to the cylinder 7, grippers 37 carried thereby, and means for transferring the leading end of a bag &c. from the gripper 22 to one of the grippers 37 comprising cams 27, 38 to open and close the respective grippers, and rockable fingers 40, running in grooves in the cylinder 7, adapted to deflect the leading end of the bag away from gripper 22 into a gripper 37. The bag blanks are cut from a tube of paper, regenerated cellulose, &c. and passed to rolls 6, 7 where a cam-operated tacker 9 inserts the end into the gripper 22 and a cam-operated gumming bar 15 gums the blank transversely. A plate 31 folds over the bottom flap which is then ironed by pads 36 carried by the conveyer 32, these pads also carrying the grippers 37. Rods 46 support each bag body 29 while it is being moved by the conveyer 32, and strippers 49 aid in removing the bags released by a cam 39 on to an adjustable transverse conveyer 48 from which the bags are removed by the operator. Specification 437,449 is referred to.
Patent GB-543584-A (GB)
Title: Improvements in or relating to levelling devices
IPC: E02F9/02
Filed: 1940-08-15
Abstract: 543,584. Automatic control systems for mobile platforms. RUSTON-BUCYRUS, Ltd. Aug. 15, 1940, No. 13065. Convention date, Aug. 17, 1939. [Class 38 (iv) ] Altitude.-A level-responsive control for four power-operated jacks supporting four separate caterpillar tractors the base of a heavy excavator or other machine comprises a single motor-driven pump P and double-acting valves V1 ... V4 selectively controlling the supply of pressure oil to jacks 1 ... 4 and the release of oil to a common suction pipe 11. Electro-magnets 20 (E Fig. 3) are controlled by pairs of switches F on each diagonal of the base through relays A associated with relays B, G operated by switches closed by each jack when fully contracted and expanded respectively. The relays comprise interlock contacts so that no jack can be expanded (or contracted) when the opposite one is fully contracted (or expanded) and one or both of the other jacks is fully expanded (or contracted) but causing automatic levelling to proceed beyond the point when a given jack has been fully expanded (or contracted) by simultaneous contraction (or expansion) of the jacks on the other diagonal. Simultaneous contraction is obtained by automatically energizing an electro-magnet 18 which opens a valve connecting a sump S to the suction pipe 11 and simultaneous expansion by relays D associated with the respective diagonals which cause actuation of valves V, V3 or V2, V4. An adjustable constriction 9 controls the speed of contraction. The coil 18 may be manually controlled by a switch 81. Firm contact with the ground is ensured at each corner by switches 27 (H, Fig. 3) which close when the pressure in any jack falls below a given value; these energize the appropriate electro-magnet 20. Manual control of each electro-magnet 20 (E), is obtained by push-button switches G, but the pump motor starting circuit is opened by relays C if the jack is fully expanded. When the tractors are in motion the control circuits described are disabled by a relay 91 and the equivalent of a three point support for the base is obtained by a coil 31 opening a valve 30 connecting the oil pipes of two adjacent jacks. The valves V1 ... V4 may each be replaced by two single acting valves. No automatic system may be applied to a system using any kind of power acuated means for raising and lowering the corners of the base. Specification 503,932 and U.S.A. Specification 2,202,009 are referred to.
Patent GB-249696-A (GB)
Title: Improvements in or relating to cooking stoves and similar apparatus
IPC: F24C3/02
Filed: 1925-05-19
Abstract: 249,696. Lambert, F. J., and Lambert, G. R. May 19, 1925. Cooking - stoves; ovens; doors; boilers, arrangement of.-A stove comprises a double - walled body, preferably of cylindrical form, mounted on a hollow 'base 2, there being a removable asbestos-lined slide 11 at the bottom of the oven chamber, beneath which is a gas burner 14; the top 3 is arranged for the support of a utensil, and on either side are off-set hobs 4, the gases being directed to or cut off from, them by adjustable hinged baffles or dampers 7. Flanged or sliding covers 5 are provided for closing the apertures in the hobs. A vessel may be heated in the oven by placing it over the gap left by the removal of the plate 11. Hooks may be provided on the rear face of the stove to attach it to a kitchener or like stove, a hinged baffle at the lower part of the rear face directing the heat from the fire into the stove. The front of the stove is closed by a door which may be removably held in position by a pivoted bar held in fittings on either side of the body, and may be hollow and provided with a filling- .aperture and discharge tap to serve as a waterheater.