baber/WOPTO huggingface dataset:
Patent GB-186961-A (GB)
Abstract: 186,961. Jackson, W. J. Mellersh-, (Bossard Railway Signal Corporation). June 6, 1921. Mercury switches; electromagnetic interrupters.-Devices for automatically and continuously interrupting lamp circuits comprise an armature 5 which is located between pole-pieces 3, 4 energized by series or shunt current coils 2 and is adjustably secured on a spindle 6 and carries a pendulum member 8 with a weight 26. A mercury contact tube 12 with mercury pockets 14 and contact points 16 is mounted in a bracket 9 secured upon the pendulum member so as to allow of longitudinal adjustment. The tube has freedom of movement in one dirsction to the limit induced by energization of the electromagnet and in the other direction by gravity, stops being dispensed with. In the normal balanced position shown in dotted lines in Fig. 1, the mercury in the tube bridges the mercury pockets 16, 17 and, on closing the control switch, the lamps are lit with the magnet coils in series therewith. As a result, the armature and pendulum member are rotated to tilt the mercury container and break the circuit whereupon the pivoted parts return to the normal position under gravity and the operation is resumed. The circuit may be open when the pendulum member isin the normal position and, in this form, the electromagnet coils are of high resistance and are permanently in the main circuit. Alternatively the magnets may be in shunt with one another and with a resistance through which the lamps are suppled except when the circuit is closed through the mercury contacts. The timing may be adjusted by adjusting the positions of the armature, mercury tube, and pendulum weight.
Patent GB-531092-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B62D31/04
Filed: 1939-06-27
Abstract: 531,092. Vehicle bodies. WEYMANN'S MOTOR BODIES (1925), Ltd., IZOD, E. G., and COOK, H. A. June 27, 1939, No. 18696. [Class 108 (i)] A vehicle body comprises front and rear bulkheads resting on the chassis and connected by girders, the rest of the body being supported by the girders and bulkheads The front-bulkhead 11 comprises a beam 12, pillars 13 and intermediate members 15, the space between which is filled in with sheet-metal or other stiffening material. The rear bulkhead, placed immediately behind the driving-wheels, comprises similar members 22, 23, 19, and is provided with a door 20; the beam 22 is connected to the chassis bv brackets 24 ; the bulkheads are connected by girders 25, 26 which support the frame members 13 connected to the chassis by flexible couplings 30. The upper deck is supported by brackets 33 from the girders 25 while the upstair seats are supported by angles 38 on the upper girder. The floor is supported on the chassis and is connected to the side of the vehicle by thin metal sheeting.
Patent GB-236400-A (GB)
Title: Improvements in or relating to machines for feeding powdery or granular material in small regular quantities
IPC: B01F15/02
Filed: 1924-08-07
Abstract: 236,400. Walker, M. W. Aug. 7, 1924. Feeding - devices for granular and like materials.-Relates to machines for feeding powdery or granular material and of the type comprising a stationary container or hopper having a funnel - shaped lower portion provided at its lower end with a central conical opening within which rotates a conical body secured upon an adjustable vertical spindle, the lower edge of the conical body being below the bottom of the container and of somewhat greater diameter than the opening and the spindle carrying a disc within the container on to which the material is delivered. According to the invention, the disc 16 is secured to the spindle 11 just above the conical body 9 and agitators 16, 18 are provided to operate around the edge of the disc 16 and in the opening 2 in the bottom of the container 6 respectively. An inclined shoot 14 with a guard 15 for the spindle 11 may receive the material from the container and deliver it to a conveyer screw &c. The spindle 11 may be adjusted by means of a lever 12 and screw 13. The conical body 9 has at its lower end a flange-like portion 10 having a flatter angle than the main portion 9. The agitator 17 above the disc 16 extends outward from the spindle 11 and downward beyond the edge of the disc 16. The spindle may be driven by gearing arranged above or below the container. The apparatus is applicable for feeding small quantities of one material into larger quantities of some other material which is being carried by a screw &c. through a trough or receptacle.
Patent GB-220938-A (GB)
Title: Improvements in or relating to unions or joints for metal or like pipes
IPC: F16L19/04
Filed: 1924-08-07
Abstract: 220,938. Tecalemit, Ltd., (Assignees of Soc. Anon. des Etablissements TÚcalÚmit). Aug. 20, 1923, [Convention date]. Void [Published under Sect. 91 of the A.ct]. Joints with longitudinal pressure and with yielding outer part compressed.-A pipe union or joint comprises a female member a with a partly threaded and partly tapered bore c, d, and a male member b adapted to screw thereinto and to accommodate an axially disposed pipe h, said male member b having a tapered extension g which is contracted to grip the pipe by contact with the flared part d of the membe ra. The member a is provided with a bevelled abutment e, against which the pipe h bears during completion of the joint. Single or double unions may be used.
Patent GB-531184-A (GB)
Title: Improvements in or relating to invalid chairs and the like
IPC: A61G5/14
Filed: 1939-06-28
Abstract: 531,184. Seats. FLEMING, R. A. D. June 28, 1939, No. 18879. [Class 52 (ii)] [Also in Group I] A chair for arthritic and like patients is provided with means whereby the seat can be raised and tilted for raising the user into a standing position ; the invention is also applicable to seats for water closets, commodes &c. In the arrangement shown the seat 23 is hinged at its front edge to a frame 22 which can be raised vertically by a hydraulic jack 27 operated by a handle 30 within reach of the user of the chair. To the rear end of the seat is attached a cord 32 passing over pulleys 33, 34 at the top and bottom of the chair back and a pulley 35 secured to the frame 22. The other end of the cord is wound on a drum mounted on a spindle 36 which can be turned by a worm-and-wheel gear 37, 38 so as to tilt the seat.
Patent GB-927537-A (GB)
Title: Knife sharpening attachment
IPC: B24B3/54
Filed: 1960-05-27
Abstract: 927,537. Flexible shafts; universal Joints. SUNBEAM CORPORATION. May 27, 1960 [July 9, 1959], No. 18901/60. Class 80 (2). [Also in Group XXIII] A flexible connection between the drive shaft 30 of one wheel 38 of a knife-sharpener and the driven shaft 46 of the other wheel 40 is effected by a length of helical spring 42 having supporting balls 50 therewithin, the ends of the spring being secured by appropriately " threading " them to the shafts so that, when transmitting the drive, they screw more tightly into the spring. A splined member 48 provides the " threaded '' element of the shaft 46. Specification 860,608 is referred to.
Patent GB-478125-A (GB)
Title: Improvements in and relating to aluminium base alloys
IPC: C22C21/12
Filed: 1936-07-08
Abstract: Aluminium alloys containing up to 12 per cent of copper with or without zinc, up to 0,5 per cent of magnesium, and 0,2 per cent of tin, contain also 0,1-5 per cent of antimony which is added by a process comprising forming a preliminary alloy of antimony with, for example, half the aluminium and adding this to the remainder of the ingredients.  The alloys may be worked at about 500 DEG  C. and cooled in air.
Patent GB-150508-A (GB)
Title: Indoor game of quoits
IPC: A63F9/02
Filed: 1919-07-31
Abstract: 150,508. McConnell, J. July 31, 1919. No Patent granted (Sealing fee not paid). Table games.-A ring laid upon the spring 3 at one end of the board 1 is projected towards one or more pegs 2 at the other end of the board. The hinged piece 5 prevents the ring from passing beyond the board. By reason of the slot 6 the piece can be laid down when not in use without fouling the pegs. Specifications 17994/90, 5323/94, 5324/94, and 1401/02 are referred to.
Patent GB-296172-A (GB)
Title: A process for recovering concentrated acetic acid from dilute acetic acid
IPC: C07C51/42
Filed: 1927-07-18
Abstract: 296,172. Suida, H. July 18, 1927. Addition to 230,4.47. Acetic acid.-In the extraction of acetic acid from aqueous solutions by treating the vapour with solvents of higher boiling-point than acetic acid as described, in the parent case, esters of cyclic carboxylic acids with mono- or polyvalent a7cohols are employed as solvents. The esters mentioned are the 11wth<y>l, eU1Yl. and butyl esters of the naphthene acids and of phthalic acid, and hexyl, heptyl, glycol and glycerine esters of phthalic acid. Specification 218,271 is referred to.
Patent GB-429552-A (GB)
Title: Improvements in and relating to safety devices for window cleaning and like purposes
IPC: A47L3/00
Filed: 1934-06-28
Abstract: 429,552. Safety supports for workmen. CAHILL, H., and ADAMS, J., 26, Westmoreland Street, Dublin. June 28, 1934, No. 19152. [Class 141] [See also Group X] A safety device foi supporting workmen working at heights comprises two symmetrical telescopic parts and a right and left hand screw adjuster between the parts. Each part is formed of telescoping tubes 1, 2, which are adjusted for length by cross-pins entering registering holes in the tubes, or by means of spring pins 11 on the inner tube entering opposed holes in the outer tube. The central screwadjuster 5 works in nut portions 4 secured to the inner ends of the inner tubular members, while the outer ends of the outer tubular members are provided with padded flanged portions 3 which are pressed against the sides of window recesses or any two opposed surfaces. The body-harness of the workman is hooked over the support, or, alternatively, a rope may be suspended from the bar to aid escape from a burning building.
Patent GB-495215-A (GB)
Title: A new or improved device for reducing the effects of secondary and scattered x-radiation during x-ray exposures
IPC: G21K1/02
Filed: 1937-07-12
Abstract: 495,215. R÷ntgen ray apparatus. COZENS, S. C. July 12, 1937, No. 19220. [Class 98 (i)] A reciprocating diaphragm or grid a for reducing the effects of secondary and scattered radiation during X-ray exposures, is mounted in a frame b, and is operated by a lever d pivoted at e to a fixed arm e<1>. The lever d is slotted and engages at one end a pivot g carried by an arm g<1> fixed to the diaphragm, and at the other end a pivot f carried by an arm f<1> fixed to a rack h moving on a guide rod j. The end of the arm f moves on a guide rod k. The rack h is actuated by an electric motor m through gearbox m<1> and pinion m<2>, and the motor is reversed at each stroke of the diaphragm by means of a projecting bracket which engages a switch arm o which reverses the electrical connections. Bells v are sounded by strikers t to indicate when the exposure may be made. To vary the speed of the diaphragm the arm e<1> is adjustable relatively to the pivot f by moving in a slot in the frame associated with an indicating scale e<3>.
Patent GB-1085165-A (GB)
Title: Hot melt adhesive compositions
IPC: C08L29/14
Filed: 1966-05-02
Abstract: Thermoplastic hot melt adhesive compositions comprise more than 50% by weight of atactic polypropylene having a Brookfield viscosity of 4200 to 5800 cp. at 300 DEG  F. and a ring and ball melting point in the range 115 DEG  to 121 DEG  C., a minor proportion of an ethylene/ acetate copolymer resin and a minor proportion of a terpene resin. The terpene resin may be derived from alpha-pinene or beta-pinene. The compositions may be prepared by mixing the constituents at 200 DEG  to 400 DEG  F., and may be used to bond aluminium foil, polyolefins, regenerated cellulose and paper. e.g. in the formation of corrugated paper boards. In examples butylated hydroxytoluene is used as antioxidant.ALSO:Sheet materials such as paper and regenerated cellulose film may be coated with a hot melt thermoplastic adhesive composition comprising more than 50 weight per cent. of atactic polypropylene having a Brookfield viscosity of 4200 to 5800 cp at 300 DEG F. and a ring and ball melting point in the range 115 to 121 DEG C., and minor proportions of an ethylene/vinyl acetate copolymer resin and a terpene resin, e.g. derived from alpha- or beta-pinene.
Patent GB-578794-A (GB)
Title: Improvements in or relating to electrical devices for sensing holes in insulating sheet material
Filed: 1944-10-06
Abstract: 578,794. Detecting, indicating, and locating faults. BRITISH TABULATING MACHINE CO., Ltd. Oct. 6, 1944, No. 19241. Convention date, Oct. 9, 1943. [Class 37] [Also in Group XIX] A device for sensing holes in insulating sheet material comprises a pair of contact members, one on each side of the sheet material, one contact member having a surface of an electrically conducting fluid adapted to be extruded through a hole in the sheet material to establish an electrical connection with the other contact member, the latter member having a surface not wetted by the fluid. The invention as applied to the sensing of perforated record cards comprises two rollers between which a record card C passes. The lower roller picks up a film of mercury from a bath 106 and, where a perforation occurs in the card, the mercury is extruded through the hole to contact the metal surface 35 of the upper roller and thereby complete a circuit through a wire 133, brush 113 (bearing upon one of a series of insulated rings corresponding with the columns of the record card), the mercury (or mercury amalgam) film, the mercury bath 106, and wire 132. The lower roller may be formed by a conducting sleeve 101, made from a metal wetted by mercury, disposed between an insulating sleeve 100 and a rubber sleeve 102 formed with cells 103 partly filled with substantially solid mercury amalgam 104 which picks up the mercury 108. Alternatively the rubber sleeve may be thinner and the mercury amalgam dispensed with, or the rubber sleeve also could be dispensed with in which case the mercury would be picked up by the metal sleeve 101. A surface of roughened rubber is also proposed or a metal powder may be incorporated in the rubber. A scraper 107 removes surplus mercury from the roller and a further scraper 116 removes mercury from the card.
Patent GB-117397-A (GB)
Title: Improvements in and relating to Drop Hammer Mechanism for use in the Manufacture of Horse Shoes.
Filed: 1917-12-31
Abstract: 117,397. King, W., and Scottish Iron & Steel Co. Dec. 31, 1917. Forging horse-shoes; power hammers. - Drop hammers for use in making horse-shoes have rack- and-pinion lifting mechanism with releasing means and the die is formed to separate the heels of the shoe the required distance. As shown, the hammer 9 is carried on a rod 12 and is adapted to slide in guides 11. The rack 15 has a limited movement on the rod, controlled by a pin and slot 18, and is pressed down by a spring 19. The pinion 16 is carried on a rotating shaft. To lift the hammer, the handle 21 is turned to cause the pinion and rack to engage and the hammer is held up by a projection 22 engaging a spring catch 23 mounted on a cross arm. To release the hammer, the handle is turned until the rack is disengaged from the pinion and the projection 22 can fall through a slot in the cross arm 14. The hammer carries a wedge piece 8 which passes between the heels of the shoe and forces them apart, the die plate being slotted for its passage. The wedge piece is secured by a pin 10 so that it may be readily removed.
Patent GB-335265-A (GB)
Title: Improvements in or relating to brake rigging for railway and like vehicles
IPC: F16D65/06
Filed: 1929-06-22
Abstract: 335,265. English Electric Co., Ltd., and Baldie, J. June 22, 1929. Blocks and shoes.- Means for attaching brake shoes of railway vehicles to the hangers which permits pivoted movement of the shoe with frictional restraint and wherein the shoe is provided with a pair of lugs 3, 3<1> embracing the hanger 4 comprises a pivot pin 1 screwed into one lug 3' or as shown into the cross-member 5 connecting brakes on each side of the vehicle. The pin passes through the hanger 4 and has a head 12 which passes freely through the lug 3. The hanger is thus clamped between the lug 3<1> and the head 12, a spring washer being interposed as shown. The pin is locked against rotation by a plate 7 having a hexagonal &c. hole fitting on the correspondingly shaped end 2 of the pin. The plate is prevented from turning by the engagement of a projection thereon with one or two studs 8 screwed into the brake shoe.
Patent GB-569618-A (GB)
Title: Improvements relating to welded steel structures
IPC: F17C1/14
Filed: 1943-11-18
Abstract: 569,618. Making welded containers &c. STEVENS, A. H. (Pittsburgh-Des Moines Co.). Nov. 18, 1943, No. 19289. [Classes 83 (i), 83 (ii) and 83 (iv)] [Also in Group II] Uniting by fusion ; casting processes.-A welded steel structure, which during normal use is subjected to load while at a temperature below - 100‹ F., such as a container for storing liquefied natural gas &c. at temperatures as low as - 260‹ F., and which is ductile at such temperatures having a Charpy impact value in the base metal and in the welds of 10 ft.-lbs. or more, is formed by welding parts of an alloy steel containing 3-10 per cent of nickel and 0.1 to 0.3 per cent of carbon by weld metal containing 20-30 per cent of chromium, 18-25 per cent of nickel, up to 0.3 per cent of carbon and the rest iron. The parts may consist of steel containing 3 to 10 per cent of nickel, 0.1 to 0.3 per cent of carbon, 0.3 to 0.5 per cent of manganese, 0.1 to 0.2 per cent of silicon and sulphur and phosphorus, each up to 0.04 per cent. A covered or uncovered metallic arc-welding electrode may be used having approximately 25 per cent of chromium and 20 per cent of nickel. The Charpy impact value of such materials at a temperature of - 260‹ F. may be 18-20 foot-pounds. The steel may be made by casting in ingot moulds, being preferably deoxidized by adding 0.08 per cent of aluminium while the steel is molten. The ingots are reduced and rolled into plates or bars &c. and normalized at 1550‹ F. The plates are prepared for welding by cleaning, pickling, sandblasting or polishing, and are preheated, preferably only in the region of the welds to 170-350‹ F., and are then buttwelded.
Patent GB-632160-A (GB)
Title: Follow-up system stabilizing circuit
IPC: G05D3/12
Filed: 1946-06-27
Abstract: 632,160. Electric follow-up systems. BENDIX AVIATION CORPORATION. June 27, 1946, No. 19291. Convention date, June 28, 1945. [Class 40 (i)] [Also in Group XL (c)] In a remote control system the motor driving the controlled device is actuated in accordance with a voltage corresponding in sense and magnitude to the displacement between the controlling and controlled devices and to the second time derivative of the voltage. A controlling device 40 positions the rotor 24 of a transmitting Selsyn and also the rotor 26 of a further transmitting Selsyn geared to the first with a 36 1 step-up. The corresponding rotors 52, 60 of the receiving Selsyns, similarly geared, are selectively connected, over relay contacts 216, 218, 220 across resistors 70, 72 to parallel connected transformers 78, 80. The sense of a displacement signal is determined by feeding the two transformers in phase opposition with A.C. from the same source as Selsyn rotors 24, 26. Each transformer has two secondary windings and outputs from windings 90, 94, after rectification in diodes 98, 10 4 appear across resistors 100, 106 in opposition, to represent the displacement voltage, while the outputs from windings 92, 96 are rectified in diodes 110, 116 and appear across resistors 112, 114, after which they are differentiated by capacitor 122 and capacitors 126, 128 to impress a second derivative on lines 130, 132, in addition to the voltage already produced across resistors 100, 106. The combined output is fed in balanced phase opposition to triodes 142, 144, the D.C. outputs from which influence saturable reactors 158, 164 to cause a controlled A.C. to flow in one phase winding 172 of a twophase motor 166, the other winding 170 of which is fed from the source 10. The motor is consequently made to run and drive the load 44 in a direction necessary to remove the displacement between it and the controller 40. The output voltage from rotor 52 is also fed to a transformer 186 the output from which is rectified and applied to a pentode 198 having a relay winding 68 in its anode circuit. When the displacement voltage exceeds an amount within the correction capabilities of Selsyn rotor 60, i.e. 10 degrees, the relay is operated and rotor 52 is connected to the motor control circuit in place of rotor 60. Thus there is no possibility of the controlling and controlled devices getting out of step owing to the high step-up ratio employed. The arrangement described also incorporates a meter 256 which indicates the extent of displacement at any instant. The transformer 224 is connected across the potentiometer- 70, 72 and feeds the anodes 236, 238 in phase opposition, while the cathodes 242, 246 are connected through balancing potentiometer 254 to the unearthed heater terminal. The variation in anode potential influences the grid currents and therefore the potential across the meter 256, the indications of which follow the curve shown in Fig. 2. The indications are limited by the saturation currents of the grids.