baber/WOPTO huggingface dataset:
Patent GB-275469-A (GB)
Title: Improvements in or relating to couches convertible into beds
IPC: A47C17/32
Filed: 1926-12-09
Abstract: 275,469. Jackson, L. Mellersh-, (Greenpoint Metallic Bed Co., Inc.). Dec. 9, 1926. Bedsteads convertible into seats.- In a couch or settee convertible into a bedstead, of the kind comprising a vertically movable frame 16 and an extension frame 17 connected together by bell-crank levers 31, 32, the arms 34<a>, 38 of the levers are of different lengths, so that a tilting movement is imparted to the frame 17 as it is swung outwardly whereby it is able to clear the vertically moving frame 16. Portions of the front corner posts 11 are deflected inwards at 46, so as to hold the frame 16, against loose longitudinal movement, when in its raised position.
Patent GB-877673-A (GB)
Title: Improvements in or relating to pistons
IPC: F16J1/04
Filed: 1959-09-14
Abstract: 877,673. Pistons. CORNET, A. Sept. 14, 1959 [Sept. 13, 1958], No. 31312/59. Class 122 (1). The gudgeon-pin bosses 7 of a trunk piston are supported from the head 1 by a partition 10 and from the skirt 4 by partitions 13, 14 transverse to the gudgeon-pin axis and connected to the skirt over a major portion of its length. The bosses have a clearance 16 in trapezium-shaped slots 5 in the upper edge of the skirt which is separated from the head 1. The partition 10 has stiffening ribs 11 and the partitions 13, 14 extend substantially in line with the internal faces of the bosses 7. The minimum thrust face of the skirt has an inclined slot 30 therein between the partitions 13. Specification 848,734 is referred to.
Patent GB-783664-A (GB)
Title: Treatment of polyethylene
IPC: B29C59/08
Filed: 1955-11-02
Abstract: <PICT:0783664/IV (a)/1> Polyethylene surfaces, e.g. films, are contacted with a flame having a temperature of at least 4000 DEG  F. under such conditions that the surface cools rapidly and the object treated is not distorted.  The flame 19 preferably strikes the film 11 at an angle of at least 10 degrees, so that the surface passes through the secondary cone 23 at a point between the tip of the primary cone 22 and 1/2 to 2 1/2 primary cone lengths from the tip, so that combustion products do not condense on the surface. The film, supported on a cooled roll, may be treated by a row of individual flames spaced 1/8 inch apart and produced by burning a mixture of oxygen and fuel gas such as propane, butane, ethane, ethylene, acetylene, natural gas or mixtures thereof.  The treated surfaces have improved ink adhesion and heat sealability. Specification 704,665 is referred to.
Patent GB-615736-A (GB)
Title: Improvements in containers for liquids and pastes
IPC: B65D55/16
Filed: 1945-11-21
Abstract: 615,736. Stoppers. RUETZ, J. Nov. 21, 1945, No. 31401. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 11, 1946.] [Class 125 (iii)] A container for liquids and pastes is provided upon its neck 2 with cavities 3 on either side, each bounded by end walls 5, lower wall 6 and having at its upper extremity a guide edge 4 parallel to the mouth plane, and has a closure comprising a cap 12, sealing member 13 and a clamping stirrup 9 which is provided with tubular pins 7<1> having integral eccentric projections 7 which enter the cavities 3 through passages 16 in one of the walls 5. The pins 71 are rotatable in openings 10 in lateral straps 11 of the cap 12, so that when the cap is placed in position over the mouth shown in broken lines, Fig. 5, the stirrup 9 may be turned clockwise for the projection 7 to engage under the edges 4 to cause a clamping action. A tongue 15 on the stirrup may engage under a projection 14 of the cap, the openings 10 being elongated to permit this, to lock the closure in the clamped position. An extension 31 of the cavity 3 may be provided in which the projections 71 are located when the closure is in the open position. The projections 7 may engage the upper upper part of wall 6 to positively raise the closure. In a modification, Fig. 8, the container has a spout 17 and an inclined portion 18 upon which the cap rests in the open position. The eccentric projection 7 is formed radially and may engage the upper edge 4 to clamp the cap 12 on to the container in any desired position and so provide different sized pouring outlets.
Patent GB-197638-A (GB)
Title: Improvements in electrodes
IPC: H05B7/14
Filed: 1922-11-17
Abstract: 197,638. Baumgartner, H. May 12, 1922, [Convention. date]. Void [Published under Sect. 91 of the Act]. Rod couplings. - Electrodes 1 for carbide and aluminium furnaces and the like a,re provided with a continuous bore 2 threaded at the ends 4 and a nipple 3 mounted in the threaded part. The nipple is provided at the ends with grooves to enable it to be rotated bv a tool inserted in the bore of a second electrode placed end to end with the first so as to connect the two electrodes together. The joint may be filled with paste. The electrodes may be rectangular in section.
Patent GB-300898-A (GB)
Title: Improvements in or relating to the treatment of water or sewage
IPC: C02F1/50
Filed: 1928-10-30
Abstract: 300,898. Ornstein, G. Nov. 10, 1927, [Convention date]. Treating-materials. -In treating water or sewage a metal salt is formed on the spot from the basic metal bv the action of chlorine or hydrogen chloride in the presence of water, and the resulting solution containing the metal salt is delivered directly into the liquid to be treated, with or without the simultaneous addition of chlorine to the liquid. Chlorine gas is passed from a container A through a meter and regulator C into a vessel D in which the gas is absorbed by water. The chlorine water is led through a vessel H containing metal and a solution of metal salt passes through a pipe J to a main G through which the liquid under treatment is passing. Chlorine solution from the vessel D may also pass through a pipe F direct to the main G. A regulator E controls the flow through the pipe F and the vessel H.
Patent GB-820897-A (GB)
Title: Improvements in or relating to relief valves
IPC: F16K17/04
Filed: 1956-10-16
Abstract: 820,897. Valves. ARO EQUIPMENT CORPORATION. Oct. 16, 1956 [Aug. 13, 1956], No. 31446/56. Class 135. A two-stage relief valve comprises a first stage relief valve, means for opening the first stage relief valve wide open once it cracks open, a second stage relief valve adapted to be opened by pressure from the first stage relief valve, detent means to hold the second stage valve open until the pressure acting thereon is substantially zero and an adjustable orifice in the outlet from the second stage relief valve. On the pressure exceeding the setting of the first stage relief valve the ball valve member 14 is unseated permitting a build-up of pressure in the conduit 22, the outlet of which is closed by the valve member 26 of the second stage relief valve. The pressure in conduit 22 quickly reaches a value sufficiently high to act on the diaphragm 18 to bow it down and open the first stage relief valve to its maximum extent. The ensuing build-up of pressure in the conduit 22 cracks open the second stage relief valve which opens to its maximum position. The adjustable orifice 42 is set such that the back pressure is just sufficient to maintain the first stage relief valve wide open for continuous flow. The adjustable orifice may be replaced by a restricted orifice if adjustment is not required. Detent means in the form of a spring-loaded ball 34 coacting with a groove 32 on the valve member 26 are provided to hold the second stage relief valve open until the pressure in the conduit 22 drops to substantially zero.
Patent GB-815264-A (GB)
Title: The production of white oil from used oils
IPC: C10M175/00
Filed: 1956-10-16
Abstract: White oils are obtained from used lubricating oil by chromotographic separation using activated alumina as the adsorbent.  The white oil is obtained as a direct filtrate and the undesired constituents adsorbed by the alumina are burnt during its regeneration.  A system in which the adsorbent moves in counterflow against the oil flow is described; in the early stages it is preferred to operate at increased temperature to reduce the viscosity of the oil, and in the final stages it is preferred to operate in the presence of a volatile solvent, e.g. low boiling paraffins containing up to 8 carbon atoms. The solvent is subsequently recovered by distillation. Specifications 609,688 and 711,487 are referred to.
Patent GB-600699-A (GB)
Title: Cell suction filter for suspensions of fibrous material
IPC: B01D33/00
Filed: 1945-11-22
Abstract: 6 0 0,6 9 9. Filters. AKTIEBOLAGET KAMYR. Nov. 22, 1945, No. 31461. Convention date, Dec. 20, 1944. [Class 46] A filter for removing suspensions of fibrous material from liquids, of the type comprising cells connected through pipes to a suction head whereby the liquid in different concentrations can be collected in separate containers, is provided with one or more transverse pipes above the cells, these pipes which supply washing or displacing fluid being inclined with respect to the dividing walls of the cells whereby mixing of fluids of different concentration is minimised. In the arrangement shown, a rotary filter drum 2 formed with cells 10 is partly immersed in a trough 1 to which a pulp suspension is supplied through a pipe 28. Filtered liquid flows down inclined floors of the cells into one end 15 of the drum where it is removed through a passage 19 connected to a suction pump. The filter cake is washed by water supplied through a pipe 26 and the weak liquor displaced by this water is collected in a hopper 21 and returned to the filter cake by way of pipe 23, collecting tank 30, pump 31 and pipe 27. This liquor displaces stronger liquor which passes through cells to a hopper 20 and from there to an outlet pipe 22. The pipes 26 and 27 are inclined so that in the cells below, the liquid furthermost away from the outlet end of the cells is the earliest to be displaced as the drum rotates, whereby the liquids collected by pipes 22, 23 are each maintained in substantially uniform concentration.
Patent GB-913829-A (GB)
Title: Control device for moving picture projectors
IPC: G03B19/18
Filed: 1959-09-15
Abstract: 913,829. Cinematograph projectors. AGFA A.G. Sept. 15, 1959 [Sept. 26, 1958], No. 31492/59. Class 97 (1). A moving picture projector comprises electrical control means for operating the electric motor and the projector lamp, and a cam and cam follower mechanism arranged for controlling the coupling of both of the reel spindles one at a time to a driving means, the electrical control means and the cam being operated by a common control shaft. The projector shown comprises a feed reel (not shown), a take-up spool (not shown) and two advancing sprockets 6, 9. A knob 17 on the outside of the projector moves over a dial having five setting positions, one each for forward and reverse running with and without the projector lamp on, and one for fast reverse running for rewinding the film with the lamp off. The knob 17 is mounted on a shaft 18 at the other end of which there are two cams 21 and 20. The cam 21 has a cam follower 32 on a lever 27 pivoted at 26, the other end 33 of which engages a groove 34 on a sleeve 35, said sleeve also having a ratchet wheel 37 for engagement with driving wheel 38 and a belt 39 connected to take-up reel. The cam comprises two parts 20a, 20b spaced at different distances along the shaft 18 and these connect, through a follower 29 on the pivoted lever 24, the ratchet wheel 44 on the slidable sleeve 42 with the driving wheel 38 or ratchet wheel 45, also on sleeve 42, with the driving wheel 46 depending on which cam part the follower rests. Sleeve 42 drives feed reel through belt 48 at different speeds depending on which of ratchets 44, 45 is connected to a driving-wheel. The driving-wheels 38, 46 are mounted on the same shaft and are rotated through worm gearing 49 by an electric motor (belt 50). This motor also serves to drive advancing sprockets 6, 9.
Patent GB-281479-A (GB)
Title: Improved apparatus for separating solid materials by the float and sink method
IPC: B03B5/18
Filed: 1926-12-13
Abstract: 281,479. Kemp, C. N., and Thomson, J. L. Dec. 13. 1926. Wet . separating. - Apparatus for separating solids of different specific gravity by means of a liquid of intermediate specific gravity comprises a tank 1 having a lateral extension 2, a perforated bucket 4 submersible in the tank and a scoop 7 movable in the extension 2. The bucket is cut away at 5, the lower edge being level with the bottom of the extension, which may be partitioned from the tank by rotating the bucket. The bottom of the scoop may be perforated. The tank is connected through valves 15 to reservoirs 12 from which a suitable liquid may be forced into the tank.
Patent GB-966092-A (GB)
Title: Liquid dispensers
IPC: G01F11/02
Filed: 1960-09-14
Abstract: 966,092. Delivering measured volumes of liquids. K. ARTMANN. Sept. 14, 1960 [Sept. 14, 1959], No. 31629/60. Heading B8N. A measuring dispenser for liquids comprises an actuating lever 5, a spring-loaded rod 25 connected with the lever, a double-acting valve coupled with the rod 25 and a measuring chamber 3 having a cover 12 which has a part projecting into the chamber to provide a guide for the rod 25 and valve and carries a rotatable ring 42 forming part of a counting mechanism for counting the number of portions of liquid dispensed. The cover 12 of the measuring chamber 3 is carried by a tube 2 which is held by a compressed rubber sleeve 10 in a bottle 1 from which the liquid is to be dispensed. Valve seats 15, 17 are provided in the outlet ends of the tube 2 and chamber 3 for coaction with the double-acting valve which is formed of two relatively-slidable parts 16, 18 guided in a part 24 projecting from the cover 12 and urged apart by a spring 22. A bore in the part 24 houses a spring 26 and the actuating rod 25 connected to the lever 5, and a transverse extension of the rod 25 engages slots 20, 23 of the valve; the spring 22 is weaker than the spring 26. A vent valve 30 is operated by a rod 29 attached to the member 18 and consists of a tube 32 having a slot 31 which may be placed in communication with a vent 33, 35 when the valve is set for charging or with the atmosphere when the valve is set for discharging. The lever 5 has a yoke member 38 which engages a pivotal member 39 carrying a spring-loaded pawl 40 which advances the ratchet ring 42 by one step at each operation. The operating unit is enclosed by a casing which is padlocked to prevent tampering with the mechanism and which is provided with an index mark for cooperation with the ring 42. In operation, the lever 5 is pressed towards the bottle and raises the rod 26 which allows the member 18 to slide upwards, the member 16 being maintained in contact with the seat 15 by the spring 22 until the member 18 has seated, further movement of the lever 5 then opening the outlet 4. In an alternative embodiment, the vent valve 30 is dispensed with and the inlet and outlet pipes 2, 4 are partitioned to allow a counterflow of air, the members 16, 18 being provided with rubber ends. The measuring chamber is also continued as a sleeve above the base 12 and is adapted to have a further sleeve bayonetted on to it and locked in position. The pawl and ratchet arrangement is also modified so that, when the bottle is the right way up, the pawl falls away from the ratchet ring 42, and depression of the lever 5 causes no advancement of the ring 42. To dispense from an open vat a siphon tube is used and the vent tube 35 carried to a point above the highest level of the siphon. In dispensing from very large vessels, for example rail tankers, the lever 5 is preferably operated automatically by a rotating cam.
Patent GB-450802-A (GB)
Title: Improvements in and relating to corrosion-proof coatings for cables or the like and method for producing the same
Filed: 1935-11-15
Abstract: An anti-corrosion coating for the metallic surfaces of cables which may be applied as a band comprises a polymer of acrylic acid or an ester thereof together with about an equal proportion of quartz dust with or without the addition of a small amount of b -naphthol.  The Specification as open to inspection under Sect. 91 referred generally to the use of polymers of acrylic acid or derivatives thereof with or without the use of fillers such as gas soot or french chalk as anti-corrosion coatings.  This subject-matter does not appear in the Specification as accepted.
Patent GB-958900-A (GB)
Title: Process for the production of glycidyl ethers of polyhydric phenols
IPC: C08G59/00
Filed: 1961-09-04
Abstract: Glycidyl ethers of polyhydric phenols are prepared by etherifying the polyhydric phenol with epihalohydrin, using 2 to 15 moles of epihalohydrin per phenolic hydroxyl group of the phenol, in the presence of 90 to 98% of an equivalent of alkali metal hydroxide per equivalent of the phenolic hydroxyl group of the phenol; separating at least part of the unreacted epihalohydrin by passing superheated steam through the reaction mixture, and contacting the etherified phenol with alkali metal hydroxide in excess amount of that needed to react with the halogen in the ether on a chemical equivalent basis. The steam distillation may be effected using steam at 90-260 DEG C. and under pressures of 2 atmospheres or more down to 5 mm. Hg. In an example bisphenol is reacted at 100 DEG C. with 10 moles of epichlorohydrin by adding 1.9 moles of aqueous sodium hydroxide.  The product is distilled at atmospheric pressure to remove some of the unreacted epichlorohydrin and then steam is passed through at a pressure decreasing from atmospheric to a reduced pressure to remove the remainder of the unreacted epichlorohydrin.  The ether residue is then taken up in methyl isobutyl ketone, and then treated with aqueous sodium hydroxide, and then washed with sodium dihydrogen phosphate, and then recovered by removal of the solvent.  In a comparative experiment, the removal of unreacted epichlorohydrin is effected by simple distillation. Specification 788,887 is referred to.ALSO:Glycidyl ethers of polyhydric phenols are prepared by etherifying the polyhydric phenol with epihalogohydrin, using 2-15 moles of epihalohydrin per phenolic hydroxyl group of the phenol, in the presence of 90 to 98% of an equivalent of alkali metal hydroxide per equivalent of the phenolic hydroxyl group of the phenol; separating at least part of the unreacted epihalohydrin by passing superheated steam through the reaction mixture and contacting the etherified phenol with alkali metal hydroxide in excess of that needed to react with the halogen in the ether on a chemical equivalent basis. The steam distillation may be effected using steam at 90-260 DEG C. and at a pressure of 5 min. Hg to 2 atmospheres. In an example, bisphenol is reacted at 100 DEG C. with 10 mols of epichlorohydrin by adding 1.9 mols of aqueous sodium hydroxide. The product is distilled at atmospheric pressure to remove some of the unreacted epichlorohydrin and then steam is passed through at a decreasing pressure. The ether residue is then taken up in methyl isobutyl ketone, and then treated with aqueous sodium hydroxide, washed with sodium dihydrogen phosphate and then recovered by removal of the solvent. Specification 788,887 is referred to.
Patent GB-689341-A (GB)
Title: Improvements in and relating to electric heating elements and the like
IPC: H05B3/42
Filed: 1949-12-12
Abstract: 689,341. Electric heating elements. BADER, K. E. Dec. 12,1950 [Dec. 12, 1949], No. 31800/49. Class 39(iii) An electric heating element comprises a resistor 1 of metal tape. or wire located in a silicone rubber impregnated woven glass fibre sleeve 2 in a seated metal sheath 3. The resistor 1 is slid in the sleeve 2 which is then drawn e.g. by a pump, into the sheath 3, the sleeve 2 being previously powdered on its cuter surface; e.g.. with talc. The completed element is then bent as desired and flattened to drive out the air. Nickel leads 4 are brazed at 5 to the resistor ends, and are themselves insulated with the material 2. The resistor 1 may have long leads within the sheath 3 which leads in effect form an inactive Dart of the element.
Patent GB-920543-A (GB)
Title: Apparatus for the recovery of polymers
IPC: C08C2/06
Filed: 1960-09-15
Abstract: <PICT:0920543/III/1> <PICT:0920543/III/2> In an apparatus for the manufacture of synthetic rubber crumb a mixture of the elastomer with a hydrocarbon solvent is extruded and contacted with jets of steam whereby the solvent is flashed off.  The elastomeric polymer and solvent mixture is supplied by a pipe 5 and is extruded from the annular chamber formed between the tubes 34, 43 into that between tubes 20, 25.  Steam is supplied by pipe 3 to the space between tubes 22, 25 and to the interior of pipe 20, contacting the extruded tube of polymer solution both inside and outside, flashing off the solvent and coagulating the elastomer into crumbs; both are carried along between tubes 20, 25, quenched by water supplied through pipe 50 and carried into a vessel 2, Fig. 1 (not shown), where additional water is added, the mixture agitated to form a slurry which is continuously withdrawn, and solvent vapour drawn off for recovery.  The quenching water on its way to pipe 50 passes from a pipe 4 through a cooling jacket 46 surrounding the elastomer feed section.  The tubes 20, 25 have a telescopic head 21 which may be advanced or retracted by means of the hand wheel 52 to regulate the volume and velocity of the steam supply; similarly, the tube 34, 36 may be axially adjusted by the hand wheel 49.  The piston 37 may also be adjusted axially relative to the tube 36 to obtain a differential pressure between the two steam jets.
Patent GB-1459148-A (GB)
Title: Touch button control system
IPC: H02P25/14
Filed: 1974-07-18
Abstract: 1459148 Variable speed control of DC motors GENERAL SIGNAL CORP 18 July 1974 [18 July 1973] 31958/74 Heading H2J Apparatus for controlling the speed of a D.C. motor 30 at any one of a plurality of values comprises a plurality of push-button switches 50, 1-50, 15, voltage storage means 70 connected with the switches and responsive in use to momentary depression of any one of the switches to store a respective one of a plurality of control voltage values, and output control means connected with said voltage storage means to provide a motor drive voltage as a function of the value of the control voltage stored therein. A voltage divider 60 powered with D.C. via rectifier 66 and capacitor 69 from A.C. source 62, 64 has taps 1-15, each tap being selectively connectable with point A via a respective switch. The circuit is controlled by a control switch 28 having movable contacts 98A -98B and stationary contacts 90A, 90B ... 96A, 96B. When switch 28 is moved to position "ON", depression of a selected switch 50 will charge capacitor 70 (connected across points A, B) to a voltage corresponding to a desired motor speed indicated by the switch pressed and this voltage will be present after the switch 50 is released and hence appear at the base of a transistor 78. The charge stored on 70 does not leak away and hence maintains the potential on the base of the transistor 78 at a value corresponding to a particular transistor impedance, which determines the time constant of charging circuit 78, 80 which in turn determines the firing angle of a thyristor 32 with respect to the phase of the A.C. supply, and hence controls the speed of motor 30 at the value corresponding to the switch pressed. The motor may be energized at the set speed for a predetermined time by actuation of a timer circuit 106, opening of whose switch 110 and setting of whose potentiometer 108 causes a capacitor 114 to charge to switch on a transistor 124 after a predetermined time. Thus transistor 124, also connected across points A and B, discharges the capacitor 70 and thereby stops the motor. The circuit controls the operation of a food mixer/blender, Fig. 2 (not shown). Movement of switch 28 to a PULSE position removes capacitor 70 from circuit and deactuates the timer 106, whereby the motor 30 may be operated for a desired time at a desired speed by continued push-button depression of a selected one of the switches 50, 1 ... 50, 15.