baber/WOPTO huggingface dataset:
Patent GB-1326472-A (GB)
Title: Apparatus and methods for controlling the electrostatic  condition of moving sheet or web material
IPC: H05F3/00
Filed: 1971-01-18
Abstract: 1326472 Discharging static electricity from webs EASTMAN KODAK CO 18 Jan 1971 [16 Jan 1970 20 Nov 1970] 2252/71 Heading B8R The electrostatic charge on a moving web 11, e.g. of photographic film or paper, is neutralized or controlled to a desired condition by apparatus including a first roller 13 having-an electrically conductive surface for engaging one side of the web and a second roller 15 having a partiallyconductive surface 17 for engaging the other side of the web; one roller, e.g. roller 13 as shown, is earthed, whilst the other roller 15 is connected to a variable D.C. source 19 having adjusters 21, 23 which can be set so that a direct voltage of the correct sign and magnitude is applied to the roller 15, the value of this voltage being determined either empirically or by means of a meter 25, 27. The roller surface 17 has a resistivity of between 1 Î 10<SP>7</SP> and 1 Î 10<SP>12</SP> ohm per square and is preferably constituted by a cotton velour plush sleeve treated with a surfactant material to make it partially conductive, this property of the surface preventing undesirable sparking should the roller 13 contact the roller 15, as may occur if the web should break or run out. Modifications of the apparatus for treating sheets of material cut from a web, and for treating a web with an electrically conductive coating on one side, are described with reference to Figs. 2 and 3 (not shown).
Patent GB-818862-A (GB)
Title: Apparatus for mixing and dispensing an adhesive plasticized material
IPC: B01F13/10
Filed: 1956-01-24
Abstract: 818,862. Mixing machines. TRUE, M. M. Jan. 24, 1956, No. 2302/56. Class 86 A machine for mixing and dispensing adhesive plasticized materials comprises a pair of cylinders 160, 162, Fig. 2, housing agitators 208, Fig. 4, which are mounted upon axially-aligned shafts 176, 178 adapted to be rotated by a motor 182 through a chain 184. As shown, the machine is in two parts, the cylinder 160 being supported on wheels 218 and a castor wheel 220 and the cylinder 162 on wheels 222, and the two cylinders being fitted, respectively, with interengaging socket members 230 and guide bars 226 for aligning the agitator shafts 176, 178 to facilitate coupling at 180. The two cylinders are preferably provided with guiding handle bars 252, 254 to facilitate assemblage. The materials to be mixed are supplied to the mixing cylinders through openings 198, 200 having removable covers 202, 204 and are discharged, preferably under air pressure, through nipples 234, 236, respectively, coupled to the opposite inlet legs 244, 246, Fig. 5, of a valve 238 having a common discharge outlet 240, the inlets 244, 246 and outlet 240 being fitted with rotatable plug valves 248, 250, 242.
Patent GB-301672-A (GB)
Title: Improvements in and relating to prismatic systems suitable for telescopes
IPC: G02B5/04
Filed: 1928-01-24
Abstract: 301,672. Hasselkus, J. W. Jan. 24, 1928. Prism systems.-A prism system suitable for telescopes has each pair of associated prisms fused or welded together with or without the interposition of a cylindrical or other block. The prisms A, B of the usual form are associated in correct position in optical contact and by the application of heat and pressure united into an integral block of glass. In a modification, Fig. 3, a lens D may be similarly unitel to a prism B, or may form one end of a cylindrical block, the plane surface of which is fused or welded to the prism.
Patent GB-178901-A (GB)
Title: Improved means for converting reciprocating motion into rotary motion, and vice versa
IPC: F16H25/14
Filed: 1921-01-17
Abstract: 178,901. Hamilton, J. R. Jan. 17, 1921. Driving-gear.-In means for converting reciprocating into rotary motion, and vice versa, the, or each, reciprocatory member carries cam-surfaces contacting with a number of radial fingers on the rotary shaft. As applied to an internalcombustion or other engine having an even number of cylinders, the piston rods or connecting- rods d are coupled in pairs by a slotted link h, Fig. 1, or a frame h, Fig. 2, and have pairs of cam-surfaces e engaging the extremities f of, or rollers carried by, three or other number of fingers c, which are secured to the main or other shaft b and preferably run in a crank-case. One of the pairs of cam-surfaces may be omitted. The device replaces reduction-gearing, and is directly reversible. When converting reciprocations into rotation, a fly-wheel may be employed.
Patent GB-1198363-A (GB)
Title: Coating Processes
Inventor: WINT TERENCE
IPC: B22C23/02
Filed: 1968-01-16
Abstract: 1,198,363. Lining and coating moulds and cores. FOSECO INTERNATIONAL Ltd. 10 Jan., 1969 [16 Jan., 1968], No. 2403/68. Heading B3F. [Also in Division B2] Sand or metal moulds, cores or dies are coated by spraying with a liquid composition comprising a particulate coating forming material and a bonding agent therefor in an inflammable liquid while burning the liquid of the composition. The inflammable liquid may be hexane, isopropanol, gas oil, white spirit or kerosene and constitute 10-75% of the coating composition. The particulate material may be a refractory such as zircon, alumina, chromite, silica, talc or olivine or a carbonaceous material such as pulverized coke, coal, graphite or lamp black. A binding agent may be present such as an alkali metal or alkaline earth metal silicate, phosphate or borate, glass, bitumens or thermoplastic or thermosetting resins such as phenolformaldehyde, urea-formaldehyde and cyclized rubber. A suspending agent such as hydrogenated castor oil and quaternary alkyl ammonium montmorillolite gels may also be present. A spray gun with an annular gas burner (10) for igniting the issuing material is described.
Patent GB-837970-A (GB)
Title: Improvements in or relating to cattle crushes
IPC: A01K1/06
Filed: 1959-01-22
Abstract: 837,970. Cattle stocks. CAVANAGH, J. Jan. 22, 1959 [April 30, 1958], No. 2415/59. Class 81 (2). In order to facilitate removing an animal from a cattle crush, the exit door is placed in one side and forms one side of the neck yoke. The end wall 5 extends partway only up the height of the pen so as to leave an opening through which the animal can thrust its head. A yoke member 30, pivoted to the upper bar of the wall 5, serves to hold the animal's neck against the upright 18 of the door 4 when this is held closed by latch members 10, 11, pivoted at 10a, 11a. The door forms the forward part of the side wall 3 and, when released, tends to swing open partly owing to the animal pushing it and partly owing to a spring 27. The yoke 30 is retained in the gripping position by a pawl 32 and the latch 10 may be secured by a pivoted locking plate 41. An end bar 28, engaging in slots 29, prevents the animal backing out of the crush and, if desired, an additional holding bar 36 may be engaged between slots 38 on the upright 18 and hooks 40 on the side members 20.
Patent GB-865463-A (GB)
Title: Improvements in or relating to time-base circuit arrangements
IPC: H03K4/14
Filed: 1958-01-24
Abstract: 865,463. Sawtooth generator circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan. 24, 1958 [Jan. 25, 1957], No. 2439/58. Class 40(6) The Figure shows a sawtooth voltage generator in which tubes 1, 3 are connected in a flip-flop circuit so that if tube 1 is conducting capacitor 5 charges linearly through the tube which acts as a constant current device. The voltage of its anode rises until it approaches the screen grid voltage when series connected tube 2 conducts the voltage drop at its anode causing the grid voltage of tube 4 to be reduced and thus its anode volts to rise. The voltage of the grid of tube 3 thus increases so that this tube is rendered conductive and tube I is cut off. Since the screen grid current of tube 1 is reduced to zero the grid voltage of tube 2 increases very rapidly and capacitor 5 discharges rapidly through tube 2. At the end of the discharge time the voltage of the anode of tube 2 is low with respect to its cathode so that the tube is cut off and via the intermediary of tube 4 tube 3 is also cut off. Thus tube 1 is rendered conductive again and the cycle recommences with the charging of capacitor 5 through tube I, a sawtooth voltage being taken from the anode of tube 1. The circuit may be triggered by adjusting resistor 14 to such a value that at the end of the fly back period of the sawtooth waveform the flip-flop 1, 3 can only be switched by a negative pulse applied for example to the anode of tube 4, the grid of tube 4 being connected via variable resistor 16 to a constant potential.
Patent GB-783836-A (GB)
Title: Cathode structure for magnetrons
IPC: H01J23/05
Filed: 1956-01-25
Abstract: 783,836. Cathode constructions and materials. WESTERN ELECTRIC CO., Inc. Jan. 25, 1956 [Feb. 2, 1955], No. 2468/56. Class 39(1). A magnetron cathode includes a metallic core provided with an emissive coating in the form of a sintered matrix of nickel-coated tungsten particles interspersed with emissive material ; the amount of nickel on the particles is so related to the amount of tungsten that the coating expands on heating at the same rate as the core. A nickel submatrix may be provided between the core and the emissive coating. In this case the total amount of nickel on the particles and in the submatrix is related to the tungsten. Preferably the core is of molybdenum and there is a linear relation of tungsten to nickel of 4 to 1 taken along a radial line, out from the core. The method of manufacture may include the steps of moistening the tungsten particles with a plasticized nitrocellulose solution as a binder dusting a fine powder of nickel, nickel oxide, or both, on the tungsten particles while agitating them, and reducing the coated powder when dry in hydro. gen. Instead of by dusting, the coating may be applied by vapour deposition or by an electroplating technique. A cathode blank 15, Fig. 3, may have a spiral groove 27, and first receives a nickel submatrix 28 formed by painting on a suspension of fine nickel powder in a nitrocellulose solution. The nickel powder is fused at the entectic. temperature of the molybdenum and nickel to form an interdiffused layer between the submatrix and the core. A further coating of fine nickel powder is then applied followed by a thin deposit of coarse nickel powder. A permanent bonding is obtained by a hydrogen sintering treatment. The cathode blank with the nickel submatrix is then positioned in a mould of oxidized stainless steel, and the tungsten-nickel powder 16 is then applied. The blank is fired in hydrogen at 900-1000C., then removed from the mould and the matrix resintered at 1200-1300C. It is found that on interdiffused alloy, of nickel and tungsten, is also formed between the nickel submatrix and the nickel coated tungsten matrix. The emissive material 30, e.g., barium-strontium carbonate or one or more alkaline earth oxides, such as those of barium and strontium, is placed on the surface of the matrix 16 and soaks into it. The normal compressing of the blank and activation and aging then follow. The cathode 11, Fig. 2, has an internal heater 26 on an insulating core 25 which has a spacer and conductor 28. End portion 19 is a heat radiator; flange 21 is pole-piece member.
Patent GB-588164-A (GB)
Title: Improvements in or relating to hinged cast metal doors and doorways for ovens
IPC: F24C15/02
Filed: 1945-02-01
Abstract: 588,164. Hinged oven doors. MAIN, Ltd., R. & A., BOWMAN, A. G. C., and SAVAGE, D. E. Feb. 1, 1945, No. 2547. [Class 126] [Also. in Group XXV] The hinged metal door and doorway of an oven are both provided with continuous peripheral ridges 17 and 13 projecting away from the plane of the door and doorway respectively and so ground that they abut evenly against each other when the door is closed. On the outer face of the doorway flange 12, Fig. 1, and adjacent the ridge, are formed metal pads 14 which are ground to the level of the ridge; these form the seatings to which smooth based hinge arms 15 are screwed. In a position corresponding to flange 14 but on the frame of the door, the flange 16 is cut away at 18 to accommodate the hinge arm, and immediately above each aperture so formed,cast integrally with the flange, is a boss 19 which forms the other half of the hinge to 15. The bosses 19 are drilled to accommodate the smooth upper portion of a hinge pin 21, which m'ay be threaded at its lower end to engage the bore in the hinge arm, and which is held in position by a lock nut 22. Both sides of the door frame are provided with sheet metal covers; the outer one 23 rests against the ridge 17 and is bent over to meet the periphery of flange 16 while the inner cover 25 is flanged to rest against the inner portion of 16. In order partially to obscure the gap between the door and the doorway frame, the sheet metal side wall 27 of the cooker is extended at 28 and then bent back upon itself to meet the doorway frame at 30.
Patent GB-1346518-A (GB)
Title: Cutting apparatus and method
IPC: B23D45/18
Filed: 1972-01-19
Abstract: 1346518 Parting-off pipes C GATTO 19 Jan 1972 [23 June 1971] 2633/72 Heading B3T [Also in Divisions B4-B5] Apparatus for cutting an axially moving pipe P, e.g. from an extruder E, Fig. 8, comprises a cutting element 40 or 42, fluid operable means 84 or 90 for moving the cutting element into and out of a cutting position, means for supplying fluid to the fluid operable means, and means for mounting the cutting element, fluid operable means, and fluid applying means for movement with and rotation about the moving pipe. As described the apparatus comprises a carriage which is reciprocable along rails 24, Figs. 3 and 8, by means of a fluid cylinder 136 controlled by a valve 138. A drum 14, Fig. 3, is mounted on the carriage so as to be rotatable about the axis of the pipe P by means of a motor 34 and drive wheel 108, and the drum carries a compressor 58, Fig. 8, connected to a pressure fluid reservoir 62 which is connected via valves 100, 102 respectively with fluid cylinders 84, 90. The pistons of cylinders 84, 90, Fig. 5, are connected to the free ends of pivoted arms 80, 96 which carry the drive shafts 76, 87 of cutting elements 40, 42, Fig. 8, the arrangement being that extension of a piston-rod urges the corresponding cutting element into its cutting position. The element 40, Fig. 3, is a bevelled milling cutter driven by an electric motor 44, Fig. 8, and the element 42 is a circular saw blade driven by a motor 46 which also drives the compressor 58. Power is supplied to the motors and valves from a console 118 via stationary brushes 116 and slip rings 114 which rotate with the drum. In operation the advancing pipe P engages a trip switch 140 thus causing actuation of the valve 138 to advance the carriage with the pipe and also causing the drum to be rotated, and at least one of the cutting elements to be rotated and advanced to its cutting position. Conventional clamps 122 hold the pipe as the carriage moves and the pipe is centred by adjustable pins 126. The pipe may have straight or bevelled ends depending on which of the cutting elements 40, 42 is/are used.
Patent GB-607144-A (GB)
Title: Improvements relating to electrically actuated razors
IPC: H02K33/04
Filed: 1946-01-26
Abstract: 607,144. Dry shavers. HINDS, G. A. Jan. 26, 1946, No. 2635. [Class 131] A reciprocable cutter unit for an electric or other razor comprises a number of separate cutter blades having toothed cutting edges mounted side by side in a retaining rack so as to be capable of movement outwardly towards the face of the guard. As shown the cutter blades 18, of sheetmetal and five in number, are spaced apart in a slotted rack 45 and are provided with rectangular cutting teeth 47 which are guided in grooves 58 on the under face of the guard 57. The blades are provided with end stems 48 having out-turned portions 49 which are engaged by down-turned ends 50 of the rack 45. Springs may surround these stems to force the blade in a direction normal to the rack but as shown the springs 56 are placed instead on staggered stems 55. Central stems 52 are provided to embrace the operating member whereby the cutter blades are reciprocated and the rack is bow shaped at 51 against which the operating member may abut. The guard 57 is of channel shape closed at the ends by posts and is provided with rows of apertures 62 corresponding to the number of blades the channel shaped guard also having slots at each upper edge and extending partly along the face and partly down the sides. The cutter head is removable and secured in place on the razor casing by a set screw.
Patent GB-668930-A (GB)
Title: Improvements in hoists for trucks
IPC: B66C1/22
Filed: 1950-02-01
Abstract: 668,930. Load-handling machines. CELANESE CORPORATION OF AMERICA. Feb. 1, 1950. [Feb. 2, 1949] No. 2636/50. Classes 78 (iii) and 78 (iv). A lift for a truck adapted to carry large numbers of yarn packages such as cones, cheeses and bobbins comprises a pair of connected lifting beams disposed one above the other and relatively rotatable about a vertical axis, means attached to the upper beam for raising and lowering both beams and means on the lower beam for securing a truck thereto. Beams 18, 19 are pivotally connected by a king pin 52, Fig. 6, and the upper beam is connected by rods 17, Fig. 1, to a pulley block 15 which is suspended by tackle 14 from an electric hoist 12 mounted on a beam 11 supported by pipe rails 22, 23. Sleeves on the ends of the beam 18 guide it on the rails and stops 26, 27 limit its downward movement. When the beam 18 reaches its lowest position an arm 29 attached to it actuates a switch 31 to put the hoist 12 out of action. Hooks 21 depending from the beam 19 engage the tubular frame members of the truck 28. The hooks 21 are keyed to shafts 58, Fig. 4, which are rotatably mounted in the flanges 55 of the beam and are encircled by torsion springs (not shown). One end of each spring is anchored to the web of the beam and the other is held under torsion by a collar adjustably fastened on the shaft, the arrangement being such that the hooks are urged downwards. The action of the springs is damped by air cushioning devices 69. The hooks can be held in the horizontal position by the engagement of rods 72 with lugs 73 on collars 62 fixed to the shaft 58. The rods are slidably mounted in brackets on the beam, are urged towards the lugs by springs 76 and are provided with handles 78 for withdrawing them. Guides 37, 38 and 39 at the base of the hoisting apparatus direct the truck into correct position as it is wheeled in. The guides 37, 38 are at right angles to each other, but the guide 39 is at a slight angle to the guide 37. A flange 41 at a slight angle to the guide 37 directs the truck between the guides 37, 39. The beams 18, 19 are prevented from relative rotation when the core 83 of a pull-type solenoid 81 mounted on the beam 18 engages an aperture in the web of the beam 19. The solenoid is counterbalanced by a weight 88. Means is provided for preventing the actuation of the hoist 12 when the beams are not parallel consisting of a pair of brushes 89, Fig. 6, which are slidably mounted in insulating bushes 90 passed through the web 46 of the beam 18. The brushes are urged downwards by conducting springs 91 which are held in place by fibre plugs 92 and to which current is fed through screws 93 passed through the plugs. When the beams are not parallel, the brushes bear on a fibre ring 94, but when they are parallel, the circuit is completed through screws 95 and a motor starter is actuated.
Patent GB-130397-A (GB)
Title: Improvements in and relating to Incendiary Darts, Bombs, and other Missiles.
Inventor: HILDT EUGENE VICTOR
IPC: F42B12/44
Filed: 1917-03-27
Abstract: 130,397. Hildt, E. V. March 27, 1917. Projectiles; projectile fuses.- Consists in an incendiary dart or bomb having a tubular body filled with the main charge which is capable of burning without air, a tail being provided at one end of the body, and, preferably at the other end, a delay-action igniting device comprising Bickford fuses. The invention differs from that described in Specification 127,050 only as regards the igniting-device. This comprises a bundle of Bickford cords u attached at one end to a wooden plug v, over which a small quantity of priming- powder y, preferably in a tinned lead capsule, is arranged. The fuses u are also secured to a cardboard cylinder s on which a cardboard tube p is mounted so as to slide upon it when the striker g is driven in on impact, thereby carrying a fulminate cap r against a firing-pin t. The striker g normally abuts against a lead or other washer x held down by a spring.
Patent GB-1193052-A (GB)
Title: An Apparatus for Washing, Sterilizing and Sterilized Storing Surgical Instruments.
IPC: A61L2/06
Filed: 1969-01-17
Abstract: 1,193,052. Cleaning apparatus. C. PANIGHI and U. BERTUZZI [trading as NUOVA TECHOFARMO DI PANIGHI & BERTUZZI]. 17 Jan., 1969 [3 Oct., 1968], No. 2743/69. Heading A4F. [Also in Division A5] Apparatus for cleaning, sterilizing, and sterilized storing of surgical and dental instruments and other articles comprises a basin 1 having means for generating ultrasonic vibrations in a cleansing liquid therein, and in which the articles are washed, a basin 6 through which a flow of water is passed for rinsing the articles, a chamber 15 provided with means, such as an electrically heated quartz tube 16, for sterilizing the articles after they have been dried, as by an electric heater 13, and a chamber 19 in which the sterilized articles are stored and maintained sterilized as by a germicidal ultraviolet ray lamp 20. Separate timing devices control the generation of ultrasonic vibrations, energization of the heater 13, and energization of the heater 16, respectively. A stirrer 10 mounted adjacent the basin 10 may be pivoted downwardly and operated to agitate washing liquid in the basin 6 for washing the articles when washing in the basin 1 is not required.
Patent GB-930407-A (GB)
Title: Improvements in or relating to vegetation cutters
IPC: A01D34/86
Filed: 1961-01-24
Abstract: 930,407. Hedge-cutters; reaping machines. D. R. BOMFORD. Jan. 24, 1962 [Jan. 24, 1961], No. 2818/61. Classes 6(2) and 6(3). A tractor-mounted hedge cutter comprises a cutter 17 carried by a beam 16 to which is pivoted a lever arm 20 one end of which is pivoted at 21 to a link 22 pivoted on the support structure 11. The other end of the lever is pivoted to a link 25 connected with a spring.26 so that when the cutter meets an obstacle the beam 16 swings rearwardly carrying with it the lever 20 thereby extending the spring and causing it to move closer to the beam 16 so that the resistance of the spring to movement of the beam diminishes as the beam swings rearwardly.