baber/WOPTO huggingface dataset:
Patent GB-326363-A (GB)
Title: Improvements relating to flyers for spinning frames
IPC: D01H7/48
Filed: 1929-03-20
Abstract: 326,363. Mackie, & Sons, Ltd., J., and Mackie, J. P. March 20, 1929. Spindle apparatus. - Light slit metal bushes b provided with a flange d are mounted in the legs of flyers, especially flyers for flax, hemp, jute, and like fibres, to serve as the yarn guide. The bush is preferably arranged with the flange on the outside of the flyer leg, so that the yarn does not come into contact with the part of the leg immediately surrounding the eye, and the space between the legs is maintained. The slit is formed at an angle to the longitudinal axis of the bush, and the bush may be secured by soldering. When spinning damp yarns, the bushes may be made of brass.
Patent GB-199821-A (GB)
Title: Improvements in electric water heaters
IPC: F24H1/20
Filed: 1922-03-30
Abstract: 199,821. Close, G. W., and Pearson, W. T., (trading as Imperial Engineering Co.). March 30, 1922. Heating by electricity. - An electric waterheater comprises a main receptacle A the sides of which are carried down to a base B so as to form a chamber C which is provided with a second receptacle D formed with a number of flat copper passages E containing heating elements, the walls of the passages being bent up from the metal sheet forming the top and bottom of the receptacle if desired. The receptacles A, D are connected for water circulation by pipes g, d, and a ball valve H maintains a constant water level in the main receptacle. A draw-off cock J is provided as shown. The pipe g may be replaced by a vertical partition. A pipe corresponding to the pipe g may be brought out to one side and carried laterally for some distance and then brought back to the receptacle, so as to form a towel rail or other drying device. Specifications 118,558 and 132,598, [both in Class 64 (i), Heating liquids &c.], are referred to. Electric radiators.-According to the Provisional Specification a radiator or a system of hot water pipes may be provided with a small receptacle containing heating-elements and connected to the top and bottom of the radiator.
Patent GB-141044-A (GB)
Title: Improved process for the recovery of lead and silver from ores and metallurgical products
IPC: C22B13/08
Filed: 1920-03-29
Abstract: Ores containing lead and silver which have been chloridized, for instance by heating with zinc chloride, are treated for the extraction of lead and silver by leaching with a hot brine containing ferric or cupric chloride or like agent to prevent the reversion of the chlorides to sulphides, and carrying out the leaching under conditions in which the time of contact of the solution with the ore is reduced to a minimum.  Instead of adding ferric chloride or the like this agent may be formed in situ by adding a little hydrochloric acid to the leaching solution when the ore contains ferric compounds soluble therein.  The leaching may be effected upon a continuously moving belt filter or upon filter beds having shallow layers of ore and provided with means such as suction or pressure for passing the liquor rapidly through the ore; or the ore mixed with leaching solution may be placed in a centrifugal machine; or the ore mixed with water may be placed in a centrifugal machine which is rotated until a cake is formed by the expulsion of the water, and the leaching solution is then added and the machine again rotated.  In an example, the leaching was effected in 7 minutes at 90 DEG  C. Specification 135,968 is referred to.
Patent GB-573733-A (GB)
Title: Improvements in or relating to fuzes for projectiles
IPC: F42C15/24
Filed: 1943-06-08
Abstract: 573,733. Projectile fuzes. O'SHEI, W. E. June 8, 1943, No. 9183. [Class 9 (i)] A projectile fuze in which striker retaining means are released by a spring-pressed arming sleeve is provided with a ball which functions as a wedge between the arming sleeve and the striker-guide thereby preventing release of the arming sleeve either during assembly of the fuze only, in which case the arming sleeve is retained by means ruptured by discharge, or until the acceleration and rotation of the projectile consequent on its discharge permit displacement of the ball and thereby allow the arming sleeve to move forward to release the striker-retaining means. Where the ball is used only to retain the arming sleeve stationary on the strikerguide during assembly, the arming sleeve 8, Fig. 1, is provided with a cylindrical projection 14 forming a recess which can only accommodate the ball 15 when the ball is in a groove 13 in the striker-guide 3. In this position the arming sleeve spring 9 is held compressed and the sleeve retains balls 6 in a groove in the striker to maintain the striker at " safe ". Springs 10 engage over the arming sleeve and under a ferrule 11 and the whole assembly is screwed into the fuze-body 1 until the ferrule engages a step 12 therein whereupon the arming sleeve is arrested while the striker-guide is advanced by further screwing action, thereby displacing the ball 15 from its recess and thus -leaving the arming sleeve retained only by the springs 10. When the projectile is fired, lugs on the springs 10 are ruptured by set-back of the ferrule 11 and the arming sleeve moves forward to release the balls 6, thereby arming the striker 4. Centrifugal action prevents the ball 15 from re-entering the groove 13 and locking the arming sleeve. Where the ball 15 retains the arming sleeve until discharge, the end of the arming sleeve is formed with a tapering, cup-shaped recess 14a, Fig. 3, the ball 15 being thereby wedged between the arming sleeve and the groove in the striker-guide by the action of the spring 9. The arming sleeve is thus locked until the projectile is fired whereupon the arming sleeve sets back and the released ball 15 is expelled from locking position by centrifugal action.
Patent GB-764767-A (GB)
Title: Improvements in or relating to refrigeration apparatus
Inventor: BUCHANAN LESLIE BYRON MOORE
IPC: F25D17/04
Filed: 1955-03-30
Abstract: 764,767. Thermally actuated valves. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 30, 1955, No. 9247/55. Class 135. [Also in Group XIII] In a domestic refrigerator the flow of air from an upper deep freeze compartment past a baffle 28 to a lower food-storage compartment is regulated in known manner by a thermostatically operated damper 36. The invention relates to means for increasing the response of the thermostat to small variations in temperature of the food storage compartment. The thermostat (Fig. 2) comprises a reservoir 38, the capacity of which may be varied by means of a screw control 51 acting on a diaphragm 44, connected by a thin small bore pipe 41, preferably of brass, to a bellows 65 mounted on the outside of the refrigerator cabinet by a cap 62 attached to a non-conducting plastic collar 57. A rod 77 is screwed to the base of the bellows and varies the angular setting of the damper 36 which is pivoted to a bracket 73 screwed to collar 57. The reservoir 38 and pipe 41 are filled with volatile liquid so that at the minimum required temperature of the food-storage compartment the level of the liquid is approximately at A. Since the temperature of the room is higher than that inside the food-storage compartment there exists a temperature gradient from about 65 ‹ F., say, at the outer shell 13 of the cabinet to about 40‹ F. at the inner liner 21. When the temperature of the food-storage compartment rises slightly the liquid vapour front in the pipe 41 is moved to position B, say, where due to the heat it receives from the cabinet wall additional liquid to that already affected vaporizes and the vapour pressure in the bellows increases. The bellows expands and causes the damper to open. The heat in the cabinet wall may be increased by applying additional heat to the outer shell 13 by mounting the condenser 86 of the refrigerating system at the back of the cabinet (Fig. 3) or by using an electric heater. Further, the reservoir of liquid may consist in a long.pipe 90 (Fig. 4) attached to the inner liner 21 and extending throughout the food-storage compartment and having a large capacity by comparison with the reservoir 38, so that the level of liquid in pipe 41 reflects the average temperature of the food-storage compartment.
Patent GB-160804-A (GB)
Title: Improvements in dental-plate attachments
IPC: A61C13/00
Filed: 1921-03-29
Abstract: 160,804. Dresch, I. J. March 26, 1920, [Convention date]. Teeth, artificial. - Dentures, such as bridges, are secured to crowns or caps for natural stumps, or to clasps for natural teeth by means which allow movement during mastication but do not allow complete dislodgment. A plate 5 with a flange 6 slotted at 7 is permanently secured to a metal crown 1 or to a. toothclasp, and is engaged by the upturned portion 10 of a plate 8 secured to the denture. The part 10 is a loose sliding fit in the slot 7, but is prevented from withdrawal therefrom by the ears 11. The parts are assembled as shown in Fig. 3, and the plate 8 is then embedded in the rubber of the bridge or plate and vulcanized. The crown carrying the denture is then secured to the natural stump or root. Usually the bridge or plate is secured at each end in the manner described. Fig. 6 shows a denture 3 with artificial teeth 4 and secured to a clasp 12 for the natural tooth 2.
Patent GB-269177-A (GB)
Title: Improvements in and relating to electric circuit interrupters
IPC: H01H77/08
Filed: 1927-04-05
Abstract: 269,177. British Thomson-Houston Co., Ltd., (Assignees of Roberson, F.). April 9, 1926, [Convention date]. Automatic circucit-breakers.-In the circuitbreaker described in Specification 252,185, in which two contact-arms 10, 11, Fig. 1, are maintained in contact with one. another (after actuation by hand or electromagnetically) by the poles 20, 21 of an electromagnetic, in order to adapt the breaker to A.C. or D.C. circuits in which the current may be in either direction or may reverse, the bucking-bar 26, Figs. 1 and 2, instead of being of U-form is S- or Z-shaped so that the main current through it weakens the hold-on flux for one of the contact arms and strengthens it for the other according to the direction of the main current. In a modification the same result is obtained by using a separate magnetic core and separate excitation for each of the pairs of poles 20, 21 and employing as before a U-shaped bucking-bar which may be energized from a current transformer in the line. In this case the flux across the two pole gaps instead of being in the same direction as in Fig. 1 are in opposite directions. Specifications 125,279, and 29980/10 are referred to also.
Patent GB-329750-A (GB)
Title: Improvements in hoists
IPC: B66D1/08
Filed: 1929-03-22
Abstract: 329,750. Holman Bros., Ltd., Shaw, H. S. Hele-, Beacham, T. E., and Mills, E. C. March 22, 1929. Winches ; driving-gear.-In a winch driven by a rotary motor of the kind described in Specification 319,606 mounted coaxially within the drum, the latter has axial extensions mounted in bearings in the standards of the machine, one extension having the motor-operating valve extending through it, while the other has an axial extension of the motor cylinder carrier extending therethrough and forming the driving shaft of the drum. The axial extensions of the drum a rotate on ball bearings a<6> in the end frames. The cylinders c of the motors are connected to two central sleeves of which one carries the driving pinion h connected through compound spur gear to the internally-toothed ring a<10> of the drum forming the inner surface of the usual brake ring. Rollers e on snafts projecting from the pistons c<2> engage rotary cam tracks f mounted on inwardly-extending eccentric flanges g on the ends of the drum. The fixed central shaft b forms the valve and can be set by manipulation of the handwheel w to run the motor in either direction with a mid-position of rest. The inlet port b<3> communicates with an annular supply chamber k while the outlet port b<4> leads to a suitable discharge point. Specification 319,386 is referred to.
Patent GB-117114-A (GB)
Title: Tractor Machines.
Inventor: STRAIT WILLIAM
IPC: B62D55/10
Filed: 1917-06-29
Abstract: 117,114. Strait, W. June 29, 1917. Secondary frames. - A traction engine has an endless tractor structure secured to the main frame so that the tractor can rock, and the main frame is flexibly supported by the tractor, the endless structure having a downward bulge making contact with the ground only at a point lying in front of the pivot of the tractor frame and in rear of the middle. The tractor is pivoted at or near the axis of the drive shaft 4, and rocking engagement of the tractor belt with the ground occurs near the point 34. The free end of the tractor unit is guided in respect to the main frame to permit vertical movement and prevent lateral movement. The belt passes around the pulleys 10, 11, 12, and the shaft 8 of the forward pulleys 10 is movable in the tractor frame and the yielding device 18, 19 is interposed to permit the shaft to move and, if necessary, the nuts 20 break, to prevent injury to the mechanism when an obstruction comes between the belt and any of its supporting-devices. The shaft 27 also has a spring 32 interposed between it and the tractor frame.
Patent GB-247427-A (GB)
Title: Improvements in machines for sizing textile sheets
IPC: D06B3/10
Filed: 1925-04-08
Abstract: 247,427. Johnson, C. B. April 8, 1925. Impregnating fabrics in long lengths.-Superposed coacting quetch rolls for sizing fabric are rotated by a variable-speed drive which allows of exact adjustment of the peripheral speed of the quetch rolls to that of drying rolls which draw the fabric forward. The fabric is drawn from a beam 17 on a carriage movable transversely on the machine, passed between rolls 22, 23, or between rolls 23, 24, then around three drying drums t, and is finally wound on to a beam 3; also movable transversely on the machine. The roll 22 dips into sizing liquid in a trough 44, carried by rods 45 vertically adjusted by means of links 47, 48. The drying rolls are driven by spur gearing from a sleeve on a shaft h, the rolls 22, 23, 24 from the nearest drying drum by spur gearing and a belt 41 passing round coned pulleys 39, 36, and the beam 3 by a belt 11 which connects pulleys on shafts h, 6. A spur wheel 32, Fig. 4, on the shaft of the pulley 36 can be engaged directly with a spur wheel 28 on the shaft of the roll 22 or indirectly by means of a pinion 35, according as it is desired to pass the fabric between the two upper rolls 23, 24 or the two lower rolls 22, 23. The belt 11 is provided with an adjustable tensioning roller 16.
Patent GB-551318-A (GB)
Title: A moulding machine for use in making concrete blocks and other concrete units
IPC: B28B3/02
Filed: 1941-07-25
Abstract: 551,318. Reinforced concrete railway sleepers. RUEGG, A. E. July 25, 1941, No. 9484. Convention date, July 27, 1940. [Class 104 (ii)] [Also in Group V] Reinforced concrete railway sleepers are formed in a mould the top 7 of which, vibrated by hammers 46, is fixed to a stationary crosshead 16, while the sides 6, ends 8 and base 5 are secured in recesses in a press table 15. The inside of the mould is lined with cloth 24 out through which water and air are sucked and pass through apertures 20 in the mould walls into suction channels 21. Through the base 5 pass pressing plungers 26 fitted with moulding " helmets " 9, 10, 11. Expressed air and water pass through grooves 27 in, the plungers 26 to channels 28 and apertures leading to suction chambers 30 in the mould base 5. The plungers 26 slide in pneumatic or hydraulic cylinders 33. The press table 15 accommodates stationary pistons 40 secured within pneumatic or hydraulic cylinders 39, and slides on vertical guide rods. The mould shown is for making a railway sleeper with three under cavities separated by cross-ribs 3, for which purpose the helmets are three in number, leaving between them the cross-ribs 3, and have secured thereto cores 12a which pass through slots in the mould top 7 to form slots for fixing the rail plates. If one of the plungers 26 tilts out of the horizontal, arms 52 move disc valves 51 so that one is closed while the other remains open. A tensioning tool 47 pre-stresses reinforcing wires 45 laid in the mould.
Patent GB-691644-A (GB)
Title: Improvements in and relating to laminated magnetic cores
IPC: H01F27/245
Filed: 1951-04-24
Abstract: 691,644. Transformers and inductors. BRITISH THOMSON-HOUSTON CO., Ltd. April 24, 1951 [May 4, 1950], No. 9505/51. Class 38 (ii). The lap and butt joints in successive layers or groups of layers of a laminated magnetic core for stationary induction apparatus are displaced from one another, in the direction of the magnetic circuit length, alternatively in opposite directions in accordance with a repetitive zig-zag sequence of more than four steps, the corresponding joints in each sequence being in the same plane perpendicular to the plane of the laminations. Figs. 1 and 6 show respectively four step joint sequences in bent strip and flat stacked lamination type cores, and modifications consist, of various forms of fivestep sequences, of which the relative mechanical strengths are compared. Specification 673,821 is referred to.
Patent GB-892573-A (GB)
Title: Improvements in electronic flash apparatus and like apparatus
IPC: H05B41/32
Filed: 1959-03-19
Abstract: 892,573. Condenser charging arrangements for photo-flash arrangements. INTERMETALL GESELLSCHAFT FUR METALLURGIE UND ELEKTRONIK. March 19, 1959 [April 11, 1958], No. 9627/59. Class 38 (4). Photo-flash apparatus comprises a capacitor Cb which is charged from a direct current source Q by way of an oscillator including a transistor T 1  and a transformer W 1 , W 2 , W 3 , the arrangement being such that when the capacitor Cb becomes fully charged an indicator lamp A ignites whereupon a control transistor Ts becomes conductive to short circuit the base-emitter circuit of the oscillator transistor T 1  so disabling the oscillator. A fall in the charge of the capacitor Cb then causes the lamp A to extinguish whereby the oscillator once more starts oscillating to bring the charge on the capacitor Cb up to its full value. Closure of the camera shutter switch S energizes a trigger transformer T whereupon the capacitor Cb discharges into a gas-discharge tube B to produce a flash. A capacitor Ch charges up over a diode D 2  and assists the disablement of the oscillator by impressing on the base of the transistor T 1  a positive potential relative to the emitter. A battery may be connected in parallel with the capacitor Ch to obviate the effect of temperature on the transistor T 1 .
Patent GB-1598957-A (GB)
Title: Device for the production of ions
IPC: H01T23/00
Filed: 1978-03-10
Abstract: The device is used especially for ionising air. It consists of a wire (5), which is connected to a high-voltage source (7) and consists of electrically conductive material, and of a reflector screen (1) which is arranged at a distance from the wire, is at a high-voltage potential and partially surrounds the wire. In order to increase the ion emission, it is proposed that the reflector screen be insulated from earth and be connected to the high-voltage source, the high-voltage potential on the reflector screen being at least 3000 V, but preferably 5000 to 10,000 V. <IMAGE>
Patent GB-1108684-A (GB)
Title: Improvements in or relating to thermometric devices
IPC: G01K7/34
Filed: 1966-03-04
Abstract: 1,108,684. Measuring temperature electrically. HITACHI SEISAKUSHO KABUSHIKI KAISHA. March 4, 1966 [March 13, 1965], No. 9659 /66. Heading G1N. The temperature of a rotating structure 1, Fig. 3, e. g. the rotor of an ultracentrifuge, is measured by installing in the rotor a tank circuit consisting of a temperature sensitive capacitor 2, e. g.. a ceramic capacitor, and an induction coil 3 which is continuously, Fig. 3, or intermittently, Fig. 5 (not shown), coupled to a coil 7 of a LC oscillator 8. In the former embodiment the two coils are concentrically arranged around a dust core 6 while in the latter embodiment the coils are wound on separate cores (61a, 62) and are coupled together once per revolution of the rotating structure (1a). By the "pulling" effect, the oscillator frequency fo, Fig. 2 (not shown), changes as the resonant frequency f 2  of the tank circuit changes, due to changes in the value of capacitor 2. Thus by measuring the frequency of the oscillator an indication of the temperature of the structure 1 can be obtained. This can be done directly or by mixing with the oscillator output signal, a signal from a standard oscillator 9, e. g. a crystal oscillator, in a mixer 10. The resultant inter-modulated signal is converted into a corresponding voltage by a converter 11, which is then recorded at 12. In the second embodiment, since the output from the oscillator is pulsating due to the intermittent coupling, the signal from the converter is fed first to a smoothing rectifier 14 before being applied to the recorder 12. Types of oscillators which can be used with the device are shown in Figs. 4a, 4<SP>b</SP> (not shown), of which Fig. 4a shows a grid-resonant type oscillator and Fig. 4b shows a plate-resonant type oscillator, both with positive feedback coils (7a) which are also wound round the dust core 6 in the first embodiment, or the core (62) in the other second embodiment. A Hartley, Colpitts, or Meissner oscillator may also be used as the oscillator 8.
Patent GB-1092587-A (GB)
Title: Pushbuton switch, for operating accoustic horns on motor vehicles
IPC: B60Q5/00
Filed: 1966-03-04
Abstract: 1,092,587. Retractive switches. FIAT S.p.A. March 4, 1966 [March 10, 1965], No. 9684/66. Heading H2B. A motor-horn switch comprises a push button 6 carrying a movable earthed contact 9 and sliding in a sheet metal annular support 1 attached to the steering wheel hub and having projections 7 engaging slits 4, and a fixed plate contact 21 having a tongue 22 for connection to a lead to the horn. Contact 21 is a force fit in a plastics case 18, which itself is a force fit in an opening in a sheet metal base wall 13. Wall 13 has lobes 13a, 13b, the former engaging projections 3a on support 1, and wall 13 is held in position by a broken ring spring 23 engaging in slits (5) in projections 3a.
Patent GB-638158-A (GB)
Title: Improvements in or relating to shot-gun cartridges
IPC: F42B7/04
Filed: 1947-04-11
Abstract: 638,158. Shot-gun cartridges. OLIN INDUSTRIES, Inc. April 11, 1947, No. 9700. Convention date, Sept. 15, 1945. [Class 9 -(i)] A shot-gun cartridge comprises a paper tube 1 assembled to a metal base cup 2 accommodating a priming assembly 3 and a base wad 4, and contains a propellent charge 5 confined by a self-sealing gun wad 6 above which is a shot charge 9, the tube having an integral end-closure 10 formed by folding as disclosed in U.S.A. Specification 929,866. The gun wad 6 is of fibrous material and has a flange of depth <SP>1</SP>/ 10  to <SP>1</SP>/ 3  the diameter of the wad. Gun-wads for 12-gauge shot cartridges were formed with a cupping die of 0.720 inch diameter from paper discs 0.035 inch thick and diameter 0.875 to to 1.20 inch. Heavily calendered paper board impregnated with high-melting point microcrystalline waxes of petroleum origin may be used. The web of the gun wad may be spaced from the propellant to form an air space. One or more resilient wads 7 may be laid over the gun wad. The resilient wad may have one or both faces dished. Test results are given for a cartridge according to the invention and two other types of shot cartridge.
Patent GB-235345-A (GB)
Title: Improvements in appliances for toasting bread and for like purposes
IPC: A47J37/06
Filed: 1924-04-22
Abstract: 235,345. Whitehead, F. April 22, 1924. Trivets.-A plate-warming device, used also for toasting, comprises a sliding box-like carriage e, a holder h consisiting of wire loops and a base g revoluble on the carriage, guide bars for the carriage and hooks attached thereto for securing the device to the grate bars. The carriage e is slidably adjusted and the holder h is rotated by a rotary rod n slidable in a loop p and connected to bevel gearing m, o. A stop on the carriage e limits the angular movement of the holder h.