baber/WOPTO huggingface dataset:
Patent GB-788175-A (GB)
Title: Graft copolymers
IPC: C08F257/00
Filed: 1955-02-18
Abstract: Graft polymers are produced by dissolving or dispersing a preformed polymer obtained by polymerizing or copolymerizing a polymerizable polynuclear aromatic hydrocarbon in a medium containing a polymerizable ethylenically unsaturated compound, e.g. styrene, acrylonitrile, vinyl acetate, methyl methacrylate and butadiene, and initiating polymerization by the action of ultra-violet light. Polynuclear aromatic hydrocarbons specified are alkenyl derivatives of naphthalene, anthracene, phenanthrene, triphenylene, chrysene, pyrene, 3,4-benzphenanthrene, 1,2 - benzanthracene, 1,2,5,6 - dibenzanthracene, perylene, rubrene and coronene, e.g. vinyl and isopropenyl naphthalenes and anthracenes.  A copolymer may be used as the preformed polymer, e.g. a styrene/vinyl naphthalene copolymer. As a reaction medium there may be used a mutual inert solvent for the polymer and the unsaturated compound or the polymer may be dissolved in the unsaturated compound without the use of such a solvent. Specification 785,055 is referred to.
Patent GB-450012-A (GB)
Title: Improvements in and relating to electric circuit breakers
IPC: H01H71/50
Filed: 1936-02-18
Abstract: 450,012. Automatic circuit-breakers; snap-action switches.. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Feb. 18, 1936, No. 4924. Convention date, Feb. 18, 1935. [Class 38 (v)] A circuit-breaker of the kind which is manually operable between on and off positions and is automatically opened in response to overload, has an operating mechanism for a movable switch member movable between open and closed position comprising an operating handle having a relatively short radius of movement about a fixed axis between on and off positions, an over-centre spring operatively connected at one end to the switch member, and means including a driving connection between the handle and the opposite end of the over-centre spring for moving the latter through an arc the radius of which is substantially greater than the radius of movement of the handle. The invention is shown applied to a breaker having arc-extinguishing means as described in Specification 420,042. The handle 16 is pivoted at 18 and slotted at 22 to receive a pin 21 which is carried by a pair of links 23, pivoted at 25, and supports one end of the dead-centre springs 19, 20. The other ends are supported on a pin 26 on a member comprising a pair of plates 28 connected by a strap 29 and pivoted at 18, Tn moving from the on position shown in Fig. 1, anticlockwise rotation of handle 16 carries the pin 21 overcentre past the pivot 18, whereupon the pin 26 takes the movable contact 13 to the off position. Just as the overcentre position is reached, the end of a slot 34 in each link 23, 24 engages the pin 26 and positively drives it, and a similar positive drive is imparted in the closing movement. The arrangement is stated to impose only a small strain on the operator, without reducing the closing force on the contacts. On overload, a series bimetal member 32 releases a trip member 30 which is pivoted at 18 and under the action of spring 31, strikes the part 29 to move contact 13 "off", Fig. 4. This action moves the handle to an intermediate position, and to reclose, the handle is moved down to full off position, whereby a part 40 thereon resets the member 30 and tensions spring 31, and is then restored to the Fig. 1 position to effect a rapid movement of the contact 13.
Patent GB-456244-A (GB)
Title: Improvements relating to the cracking of mineral oils
IPC: C10G11/04
Filed: 1936-02-19
Abstract: Oils are cracked in the presence of spent clay previously used in purifying lubricating stock, the oil contained in the clay being thus utilized.  The spent clay is preferably first used to purify the naphtha produced in the cracking process.  Either spent natural clay or acid-treated clay, may be used pre <PICT:0456244/III/1> ferably the finely-divided spent clay from a filtration or contact process. Gas oil from a storage tank 1 is charged to an accumulator tank 2 and passes thence through a line 3, in which it is mixed with spent clay and oil fed from a tank 7, to a cracking coil 4 and drum 5, the products passing into a separator 9 from which tar and spent clay are removed through a cooler 10 to a settling tank 11.  The cracked vapours are fractionated in towers 12, 13 and the reflux formed is collected in the accumulator 2 or directed through a cooler 14a to the mixing tank 7.  The final naphtha distillate is condensed in a cooler 14, passed to a debutanizing tower 16, and thence to a bubble tower 17 provided with a reboiler 18 from which heavy residues pass to a tank 20. The vaporized naphtha is purified in a tower 17a by treatment in counter current with a mixture of spent clay and naphtha from a tank 26.  The purified vapours are condensed in a cooler 23 to give a stable distillate which is stored in a tank 24 and used in part to mix with the spent clay in the mixer 26.  The naphtha clay slurry from the tower 17a is passed to a settling tank 28 from which heavy naphtha is removed through a cooler 29 to storage while the spent clay is discharged to a bin 32 from which it is passed to the bin 6 and the mixing tank 7.  An example is given of the cracking of Mid-continent gas oil, 1,79 lbs. of clay being used per barrel of feed.
Patent GB-122958-A (GB)
Title: Improvements in and relating to Evaporators.
Inventor: KESTNER PAUL
IPC: B01D1/06
Filed: 1918-03-22
Abstract: 122,958. Kestner, P. March 22, 1918. Separate heater and evaporator apparatus -In an evaporator of the type described in Specification 29061/10 comprising a long duct consisting of three or more vertical tubes through which the liquid passes, a separator is provided at the upper end of the vertical duct. In the apparatus shown, the liquid enters at F, passes up and down the steam-heated tubes a, a<1>, a<2>, and enters the separator c, whence it may be passed for further treatment to vessels E, E<1>.
Patent GB-221733-A (GB)
Title: Improved portable cigarette-making machine
IPC: A24C5/44
Filed: 1924-02-28
Abstract: 221,733. Brydges, S. M. Feb. 28, 1924. Cigarette-making appliances.-A port'able appliance comprises a metal or other base 1 provided with a cylindrical trough 2 and with a slot 3 containing a wad 4 of cigarette papers. A metal plate 7 is fixed to the base 1 or is slidably connected therewith by the engagement of pins 14 with slots in the plate. The plate 7 has hinged thereto a plate 8 curved at its edge t'o form a tobacco-moulding surface 9. The cigarette papers are held in the slot 3 by means such as a spring pin 5. In use, tobacco is loaded into one of the papers 4 placed in the trough 2. The plate 8 is then folded upon the plate 7 and the tobacco is moulded by the pressure of the former 9. An arcuate plate 10 sliding in lugs 11 upon the former 9 is then pressed forward, wrapping the free edge of the paper about the tobacco and at the same time detaching the other edge from the slot 3. The cigarette is completed by moistening the det'ached edge with a brush 13 carried in a recess in the base 1 and pressing it down upon the body of the cigarette. The plates 7, 8 may be dispensed with, the former 9 being hinged directly to the base 1. In this modification, the pin 5 is formed by one end of a wire spring, the other end of which engages one lip of the slot 3. A strip of flexible material attached to a loop of the wire spring is wrapped about the device when not in use. In a further modification, the device is constructed of sheet metal bent to form the slot 3 and the trough 2. The slot 3 grips the wad 4 resiliently. The former 9 is integral with the trough 2 and t'he brush 13 is dispensed with.
Patent GB-1137066-A (GB)
Title: Improvements in or relating to mountings for sanitary fittings
Inventor: GOSLETT WALLIS MAYNARD
IPC: E03C1/32
Filed: 1965-02-05
Abstract: 1,137,066. Mountings for sanitary fittings. ALFRED GOSLETT & CO. Ltd. 2 May, 1966 [5 Feb., 1965], No. 5152/65. Headings A4B and A4N. A mounting for sanitary fittings comprises a bracket having one end 1 for location within a supporting surface or wall, an opposite end 2 for engagement with a fitting 5, e.g. a lavatory basin, and an intermediate part 6 for carrying a shield or sleeve member 7 having parts 8, e.g. flanges having one or more apertures 9, for attachment to the supporting surface or wall and to the fitting. The end 2 may have a threaded aperture 3 for engagement by a threaded member 4 which acts as a levelling device. The latter is mounted on to the supporting surface by inserting one end of the bracket in the supporting surface to project from it through plumbing concealing means, engaging the fitting with the free end of the bracket, interposing the shield member between the means and the fitting and anchoring one end of the shield member to the concealing means and the other end to the fitting.
Patent GB-785581-A (GB)
Title: Improvements in and relating to resistance welding machines
IPC: B23K11/31
Filed: 1956-02-20
Abstract: 785,581. Welding by pressure. SCHLATTER AKT.-GES., H. A. Feb. 20, 1956 [Feb. 21, 1955], No. 5154/56. Class 83 (4). In a resistance welding machine a movable electrode 1 is mechanically connected to a main hydraulic ram 9, the latter being acted upon by mechanically transmitted force from a pneumatic ram 14 during a setting stroke and the cylinder space 10 above the ram 9 being in communication through a port 32 with a container of hydraulic fluid and being in communication with a cylinder 22 containing hydraulic fluid, the pneumatically operated ram 24 in the cylinder 22 forcing fluid in the cylinder 22 into the space above the main ram when the passage is closed to perform the welding stroke. The electrode 1 is held in a chuck 4 connected to a supply cable 5 and a plunger 6 rigid with the chuck and guided in a bush 7 carries the main ram 9. The auxiliary ram 14 is located in a cylinder 13 above the main ram and the lower end of the rod 17 of the ram 14 is engageable with the plunger 6 and the upper end of the rod 17 carries a handwheel 19 forming an adjustable stop. The space 10 above the ram 9 communicates with a bore 22 containing the plunger 24 secured to a pneumatic piston 25 normally urged to the right by a spring 26. An oil tank 30 communicates by a port 32 with the bore 22. In operation with the ram 9 raised by air beneath the ram entering through a pipe 12, the ram 14 in its top position and the ram 24 in its extreme right-hand position, a pedal 33 is depressed to close contacts 34 which energize a solenoid valve 16 to allow air to enter above the ram 14 to lower the ram 14 and through the rod 17, the ram 9. The ram 14 is lowered until handwheel 19 engages stop 20 and closes contacts 21. On depressing the @e @al 3@ to @close contacts 35 the solenoid valve 29 is energize to allow air to enter behind the piston 25 to move the ram 24 to the left to close the port 32 and force the oil in bore 22 to the left to lower the ram 9 in the welding stroke. After welding the contact 35 is opened, the valve 29 closes, the spring 26 returns the piston 25 and the ram 9 is lifted by air from the pipe 12 to engage the rod 17. Opening of the contact 34 allows the parts to return to their original position. The ram 9 need be raised only to contact the rod 17 between welds and a roller electrode may replace electrode 1. The return stroke of the piston 25 may be effected pneumatically and the ram 14 may transmit its force to the ram 9 by levers. A valve may be arranged to close the port 32.
Patent GB-1009886-A (GB)
Title: Improvements in or relating to electric heating devices
IPC: H01H37/14
Filed: 1961-02-11
Abstract: 1,009,886. Control systems for electric heating devices. J. ARCHER, and J. L. OWNER. Feb. 12, 1962 [Feb. 11, 1961], No. 5164/61. Heading H2H. A heating device comprising a heating element 4 surrounded by a non-distortable tube containing a fluid such as air is provided with temperature regulating apparatus which comprises two switches, a cycling switch having contacts 8, 9 which are operated by a bellows 3 responsive to changes with temperature in the pressure or volume of the fluid in the tube surrounding the heating element 21 and a thermal switch 15 having contacts 16, 18, the contact 18 being carried by a bimetal strip 19 having an associated heater 20. The heater 20 and the switch contacts 16, 18 are connected in series with the heating element 21 and the contacts 8, 9 are connected in parallel with the heater 20. Whilst the heating device is below a predetermined temperature set by an adjuster 14 the contacts 8, 9 are closed to shortcircuit the heater 20, the heating element 21 then being continuously energized. At the preset temperature expansion of the fluid in the tube surrounding the heating element 21 causes the bellows 3 to open contacts 8, 9 which then allows the switch 15 to cycle the' contacts 16, 18 in a normal manner to regulate the energy supply to the heating element 21. In a second embodiment the contacts 16, 18 are replaced by a microswitch operated by the bimetal strip 19. The device may be used to control refrigerating apparatus. Specification 1,008,311 is referred to.
Patent GB-109223-A (GB)
Title: Improvements in Power Transmission Mechanism Operating by Frictional Engagement.
Inventor: GILL HUBERT ALEXANDER
IPC: F16H15/12
Filed: 1917-04-13
Abstract: 109,223. Gill, H. A., (Donaldson & Fisher Co.). April 13, 1917. Change-speed and reversing gearing.-Variablespeed friction gearing for motor vehicles is so arranged that the pressures between the friction elements is balanced. A driving-shaft 11 carries two friction disks 12 engaging two pairs of rollers 23, 24 on opposite sides of the shaft 11. The rollers are movable along shafts 21, 22, the inner ends of which are supported in bearings 25 mounted in a divided sleeve 29 enclosing the shaft 11. The bearings are adjusted by screws 31 and can yield against springs 30. The rollers 23, 24 are moved simultaneously to vary the speed by connexions from a single lever 65. The outer ends of the shafts 21, 22 are mounted in adjustable bearings 37, Fig. 4, in gear boxes 19, each containing two trains of toothed gearing conveying forward or reverse movements to a driven shaft 20. Either train is put into gear by a sliding sleeve clutch 46, 47, operated by a lever 53, Fig. 1, the operating-means in the two gear boxes being connected by a rod 52<1>. Since the shafts 21, 22 rotate in opposite directionu the trains connecting them to the driven shaft 20 contain one an odd and the other an even number of wheels, and in the trains for reversing the numbers are transposed.
Patent GB-547175-A (GB)
Title: Improvements relating to automatic lubricating systems
IPC: F16N13/16
Filed: 1941-04-25
Abstract: 547,175. Lubricators. HIGGINS, A. G., and LONDON PASSENGER TRANSPORT BOARD. April 25, 1941, No. 5351. [Class 12 (iii)] Grease is ejected from a cylinder 1 by a piston 2 having two opposed cup washers 3, 4 and intermittently subjected to fluid pressure preferably obtained from an automatic oil distributer, the cylinder being charged and discharged through a head 5 having a filler-plug 13 or gun-nipple and a valve 6 actuated by a knob 15 so as to engage in valve seats 8, 9. The cylinder base 22 has a ball-release valve 25 to prevent excessive ejection of grease. The cylinder is carried by a bracket 17 supporting the pressure inlet pipes 19, 20. The piston may be operated by electrical or mechanical means with fluid-pressure transmission.
Patent GB-1067142-A (GB)
Title: Improvements relating to ropes, twines, cords and the like
Inventor: BEAUMONT ALBERT GORDON
IPC: D07B1/02
Filed: 1963-02-11
Abstract: A process for increasing the tensile properties of a rope or the like, formed by twisting a number of polyolefine filaments together to form separate strands which are themselves twisted together, comprises stretching the rope or the like at a temperature above 100 DEG C but below the softening point of the polyolefine.  The stretching may be effected in air heated to the required temperature. In one embodiment the rope is composed of twisted strands made from the Zieyler type of polyethylene and the degree of stretching is from 25 to 35 per cent based on the original length of the rope, the stretching being effected at a temperature in the range 110 DEG  to 125 DEG C.  The filaments used may be made from any of the polyethylenes or polypropylenes.
Patent GB-598557-A (GB)
Title: Improvements in and relating to the desulphurisation of hydrocarbons
IPC: G08B17/00
Filed: 1945-03-05
Abstract: Hydrocarbons such as gasoline and kerosene are desulphurized by passing them in the gaseous phase into contact with a mixture of one or more alkali carbonates and catalytically active metallic iron at a temperature of 80-400 DEG C.  The temperature of the desulphurizing agent is increased in accordance with the increase in the amount of sulphur absorbed thereby.  The process may be effected under pressure.  The desulphurizing mixture may also contain an oxide of iron.  A suitable desulphurizing agent is prepared by mixing soda ash and iron ore with water to form a paste which is then slowly dried. The mixture is crushed and then subjected to a reduction process with, e.g., hydrogen, carbon monoxide or blue water gas at 210 DEG C. to 225 DEG C. to convert some or all of the oxide to iron.
Patent GB-325114-A (GB)
Title: Improvements in flushing valves
IPC: E03D3/04
Filed: 1929-02-19
Abstract: 325,114. Tews, H. W. Feb. 19, 1929. Fluid-actuated valves. -In a flushing-valve of the type actuated by fluid pressure on the manual operation of a relief valve, the main valve 16 is secured to a spool-shaped member 15 which divides the casing into upper and lower chambers, 21 and 22 respectively. The top portion of the spool member 15 forms a piston 19, on the upper surface of which the water pressure bears to maintain the valve in its closed position, the water passing from the lower to the upper chamber through a bleed port 23. The relief valve 36 is arranged eccentrically to the piston 19 and is carried in the detachable top portion of the casing, the eccentric arrangement enabling a plurality of levers, 41, 43, 47 to be interposed between the push button 48 and valve stem 39. The relief valve is normally retained on its seating by a spring 37 which is housed in a casing 38, the seating being secured by the top edge of the casing 38, whilst the latter projects into the cupped piston so that the spring casing clears the piston as it rises. When the relief valve is opened, the pressure on the top of the piston is released, the water passing from the upper chamber through the passages 28, 29, 30 to the outlet side of the main valve, which is then lifted by the inlet pressure acting on the underside of the piston.
Patent GB-616169-A (GB)
Title: Improvements in or relating to metal supported vacuum-tight vitreous seals
IPC: H01J5/26
Filed: 1946-02-22
Abstract: 616,169. Metal-to-glass seals. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Feb. 22, 1946, No. 5585. Convention date, March 29, 1943. Drawings to Specification. [Class 36] [Also in Groups XL (a) and XL (c)] A metal-supported vacuum-tight vitreous seal for use as a window for electromagnetic waves between two sections of a hollow waveguide comprises a glass member filling an aperture in a metal plate so as to be flush with both sides thereof, the glass member having the same coefficient of expansion as the plate. The glass member may be secured in a circular or rectangular aperture in a metal annulus which in turn is secured in an aperture in the metal plate. The glass is a borosilicate glass and the metal-support consists of an ironnickel-cobalt alloy. The edges of the glassfilled aperture are preferably rounded and oxidized prior to the insertion of the glass. The glass member may comprise an outer portion suitable for sealing to metal, and an inner portion suitable for the transmission of electromagnetic waves.
Patent GB-271788-A (GB)
Title: Improvements in or relating to spectacle or eye glass cases
IPC: A45C11/04
Filed: 1927-02-28
Abstract: 271,788. Robinson, F. Feb. 28, 1927, Spectacle cases.-A spectacle case comprises a central partition 5 on each side of which is a compartment for spectacles. Each edge off the partition has an inwardly turned flange 6 and a lid 7 is provided on each side to overlie the flanges when closed. The flanges may be on one edge only of the partition 5, and in that case both lids would be hinged to the opposite edge. The case is approximately of elliptical shape in cross-section.
Patent GB-1452734-A (GB)
Title: Mineral wool
IPC: C03B37/022
Filed: 1975-02-10
Abstract: 1452734 Mineral wool GRANGES OXELOSUNDS JARNVERK AB 10 Feb 1975 [12 Feb 1974] 5647/75 Heading C1M The composition of still-molten blast furnace slag is modified, so as to enable it to be spun into mineral wool, by adding to the molten slag at least 10% by weight of the slag of a silicacontaining acidic oxide as additive, any heat losses (e.g. caused by melting of the additive) being replaced by supplying further heat to the melt. The molten slag may then be spun directly into mineral wool. The additive may be SiO 2  and/or chamotte, or granite scrap or sand, and is preferably heated before its addition to the melt. The heat losses may be replaced by combustion (e.g. of coal or oil) in the molten slag (thus agitating the melt), and/or by induction heating employing a bath of molten metal disposed beneath the molten slag. Preferably, molten slag is supplied to a processing furnace in which additive is added to achieve substantially the desired composition, and then passed to a homogenizing furnace in which the composition or temperature may be further adjusted. Two processing furnaces may be used to supply alternately molten slag to the homogenizing furnace.
Patent GB-1398376-A (GB)
Title: Boring bars
IPC: B23B29/034
Filed: 1974-02-07
Abstract: 1398376 Boring bar ERICKSON TOOL CO 7 Feb 1974 [2 Nov 1973] 05694/74 Heading B3C In a boring bar, the cutter cartridge 7 is keyed in a bore 4 of the boring bar by at least one key and keyway 16, 18, and one side of a key and keyway are forced into engagement by a screw 20 which provides a couple DF on a flat 21 on cutter 10. The screw may replace one of the keys Fig. 4 (not shown) or, the lock screw may be locked eccentrically of the axis of bore 4, Fig. 5 (not shown).
Patent GB-608440-A (GB)
Title: Improvements in or relating to metronomes
IPC: G04F5/02
Filed: 1946-02-23
Abstract: 608,440. Metronomes. BLAIKLEY, A. S., and BOOSEY & HAWKES, Ltd. Feb. 23, 1946, No. 5698. [Class 88 (ii)] [Also in Group XXXVII] A metronome comprises a self-interrupting relay in which the discharge of a condenser through a variable resistance determines its time of release. A condenser 2, Fig. 1, is connected across the winding 1 of the relay, which connects the winding and condenser across the supply 6 when unoperated and across a variable resistance 8 when operated. The sound of the relay contacts closing on operation is communicated to a plastic casing 9, Fig. 2, through a screw 30. Two controls are provided, a main switch 5a and a sliding knob 11 which taps off the appropriate length of variable resistance to give the desired periodicity of operation. The components are carried on insulating panels 13, 33.