baber/WOPTO huggingface dataset:
Patent GB-159523-A (GB)
Title: Improvements in alarm actuating apparatus for automatic sprinkler systems
IPC: A62C35/60
Filed: 1919-08-11
Abstract: 159,523. Imray, O., (Meadowcroft, J. C.). Aug. 11, 1919. Alarms operated by flowing liquid. -Relates to alarm apparatus of the type operated by the flow of water in automatic sprinkler systems and so constructed as to prevent false alarms due to water hammer or momentary fluctuations of pressure. The alarm valve casing, Fig. 2, has a water inlet 3 controlled by a main valve 10 on a lever 18, and is provided with a bypass 12 controlled by an auxiliary valve 13, which is rotatably mounted on a pivoted arm 21 and is adapted to open independently of the main valve and at a lower pressure. The auxiliary valve 13 seats on a bush 24 and is provided with a flexible diaphragm 93, which normally closes the end of a pipe 25 under the pressure of the water on the upper side of the auxiliary valve acting through an axial bore 95. When one or more sprinkler heads are opened, the auxiliary valve 13 is first opened, and when the main valve 10 opens on the operation of further sprinkler heads, its lever 18 engages the arm 21 and retains the auxiliary valve open; some of the water then passes through the pipe 25 and a duct 29, and some through an annular duct 14 in the main valve seat and thence through a port 15, the duct 29, and port 15 leading through a pipe to a retarding- chamber communicating with the alarm-sounding device. In case of water hammer &c., the sensitive auxiliary valve 13 opens, and the small spurts of water thus admitted escape through the pipe 25 and the duct 29 to the retarding-chamber. The retarding-apparatus comprises a retarding- chamber 50, Fig. 6, and an accumulating-chamber 51 leading through a port 86 to the alarm device. Water from the alarm valve passes through a pipe 60 into a sub-chamber 55 and thence through a small port 66, thus lifting a valve 74 on a weighted double-armed lever 73, and passing into the retarding-chamber 50. In the case of a small spurt, the valve 74 closes again by gravity, thus lifting a second valve 72 on the lever 73 away from a large port 68, through which the water escapes to a sub-chamber 56 leading to a drainage pipe 69. In the case of a steady flow of water, the valve 74 remains opens and the valve 72 closed, and the water then fills the chamber 50 and passes throuhg a small port 83 and past a baffle-plate 85 into the accumulating- chamber 51 and thence to the alarm device.
Patent GB-314537-A (GB)
Title: Improvements in dams or the like
IPC: E02B7/36
Filed: 1929-06-26
Abstract: 314,537. Tahara, H. June 30, 1928, [Convention date]. Movable dams.-A roller dam is moved up and down by means comprising a single wire rope. Fig. 2 shows a front view of a dam 3 moving on inclined racks 4 at its ends. A single wire rope 13, attached to the point 14 and to a hoist passed over pulleys 7, 8, 11, 12, and lifts the dam by means of axles 19 in stirrup journals 9. In modifications, the racks 4 and wheels 1 are replaced by chains.
Patent GB-234331-A (GB)
Title: Improvements in and relating to variable inductance coils
IPC: H01F21/00
Filed: 1924-08-21
Abstract: 234,331. Coleman, W. H. Aug. 21, 1924. Inductances.-A variable inductance such as the aerial tuning inductance of a wireless receiving-set comprises a drum 1 on to which a conductor 2, preferably of tape form, is wound from a drum 3 together with an insulating and spacing strip 4, preferably of corrugated paper, from a drum 5. One end of the conductor 2 is connected to the drum 1 and the other end to the drum 3. The turns on the drum 3 are shortcircuited bv their contact. The drums 3 and 5 may be spring-controlled or tney may be geared to the drum 1. Two or more inductances of the kind described may be mounted so as to be simultaneously controlled.
Patent GB-215704-A (GB)
Title: Improvements in caps
IPC: A42B1/06
Filed: 1923-08-02
Abstract: 215,704. Llavina, I. C. May 8, 1923, [Convention date]. Caps. - The seams are arranged in the manner of those of a football.
Patent GB-715869-A (GB)
Title: Improvements in pyrotechnic distress signals
Inventor: SCHERMULY ALFRED JAMES
IPC: F42B12/68
Filed: 1952-08-07
Abstract: 715,869. Pyrotechnic  distress signals. SCHERMULY PISTOL ROCKET APPARATUS, Ltd. May 15, 1953 [Aug. 7, 1952], No. 19893/52. Class 9(2) A pyrotechnic device for emitting star shells is assembled by inserting into a metal tube 1 a propellant charge 2 a star signal 3, a delay composition 6, a second propellant charge 7, star signal 8 and delay composition 11. Around each star signal is wrapped a strip of glazeboard and in the gap 16 between the ends of the strip is placed a strip of primed cambric 10 with its ends extending over the end faces of the star signal. An igniter 12 is placed in the mouth of the tube 1 which is mounted within an outer casing 13, the tube and casing being closed by a screw cap 14 and adhesive sealing tape 15. Instead of the glazeboard, a split sleeve of synthetic plastic material may be placed round the star signals.
Patent GB-247841-A (GB)
Title: Improvements in or relating to printing surfaces in the form of rollers, plates or blocks
IPC: B41N1/12
Filed: 1925-08-08
Abstract: 247,841. Jaek, C. Aug. 8, 1925. Printing-surfaces.-A printing roller or block is produced by providing a support such as a roughened aluminium cylinder 1 or an aluminium plate with a layer or layers 2 of soft material such as soft rubber, then applying a thick layer of hard rubber, securing the latter by vulcanization, and engraving the same by a sand-blast, preferably after turning, planing, or grinding the surface and applying paper stencils. The roller or block may be employed for a new design after turning or grinding away the surface. The sandblast may be allowed to act until the layer 2 is exposed when additional printing members 4, such as brass lines or cast patterns, may be inserted in the manner employed in pattern cutting. The soft layer 2 may consist of 10 per cent rubber, 10 per cent sulphur, 5 per cent factis, 5 per cent linseed oil, and a looze filler such as sawdust, ground paper, or cork, and the hard layer 3 may contain fillers such as chalk or zinc white.
Patent GB-128844-A (GB)
Title: Improvements in or relating to Flush Tank Bulb Valves and like Articles.
Inventor: ROBERTS FRED THOMAS
IPC: E03D1/34
Filed: 1918-12-04
Abstract: 128,844. Roberts, F. T., and Rosenfeld, R. H. Dec. 4, 1918. Junction rubber.-A flush-tank bulb-valve or the like hollow article of rubber or similar material comprises two sections A, B, Figs. 2 and 4, one more flexible than the other; the upper part B is made thick and conical and, preferably, of semi-cured stock, and the lower part is made thin and of hemispherical form of soft flexible raw rubber. The edges of the two sections extend one into the other with a bevelled or other lap seam which is cemented. The subsequent vulcanization sets the seam and also cures the lower part, and completes the curing of the upper part of the article. During vulcanization the article is kept seated against the mould walls by fluid pressure supplied to the interior. The width of the seam is made greater than the thickness of either section. The upper section has a slightly overhanging edge b, or, as shown in Fig. 4, is set back to receive a veneer G of high grade rubber. In the latter case the thick inner portions can then be made of a low grade quality of rubber. An internally-screwed spud D is embedded in the rubber to receive a spindle.
Patent GB-1144036-A (GB)
Title: A vane for an aerial flow turbomachine
IPC: F01D5/18
Filed: 1967-05-02
Abstract: 1,144,036. Turbine and compressor blades; gas turbine engine cooling. GENERAL ELECTRIC CO. May 2, 1967 [Sept. 14, 1966], No.20227/67. Headings F1G and F1T. A hollow turbine or compressor blade for a gas turbine engine contains an insert or partition 61 dividing the blade interior into central, leading edge, and trailing edge chambers 66, 70 and 73 respectively, the insert 61 being located by radial ribs 64, 65 which also define passages 71, 72. As shown, the blade is a nozzle guide blade to the radially outer end 62 of which cooling air is supplied to flow inwards through chambers 66, 73 and passages 71, 72, a blanking plate 74 preventing direct flow of air to chamber 70. Some of the air in chamber 66 flows through radially spaced orifices 63 to enter chamber 70 before exhausting into the gas stream through orifices 80a, b, c. The remainder of the air in chamber 66 flows through apertures 75 in a plate 60 attached to a shroud band segment 35 to effect cooling of a seal member 39 secured to a flange 37 on the segment. Some of the air in the region 85 adjacent the seal 39 flows outwards through small passages 86 in the shroud segment 35 to effect cooling thereof. The air in chamber 73 flows mainly through passages 82 to cool the blade trailing edge 55, although some may flow through apertures 75. The passages and chambers in the blade may be formed by machining or during casting rather than by an insert. The blade could be a rotor blade.
Patent GB-881129-A (GB)
Title: Reciprocating pumps
Inventor: KNIGHTS RICHARD NORTHAM
IPC: F04B43/067
Filed: 1959-06-12
Abstract: 881,129. Mud pumps. DOWTY ROTOL Ltd. June 7, 1960 [June 12, 1959], No. 20247/59. Class 102(1). [Also in Group XXIX] A reciprocating pump for liquids comprises cylinders 13, 14, pistons 15, 16 reciprocable in the cylinders by an actuating liquid, each assembly having a flexible diaphragm 62, Fig. 2 (not shown), separated from that face of the piston which is remote from the actuating liquid and which contains, with said face, a liquid filled chamber of substantially fixed volume, and a pumping chamber 64, Fig. 2 (not shown), on the other side of the diaphragm to receive the liquid to be pumped by the action of the piston / liquid/diaphragm assembly. A pilot valve spool 19 and main valve spool 24, both movable between two end positions, cause the pistons to reciprocate automatically under liquid pressure at the inlet 26, Fig. 3 (not shown), the spool 19 being moved by each piston at the inner end of its stroke to cause the spool 24 to move and thereby redirect pressure liquid to reverse the stroke of the piston. A safety vent valve 66, Fig. 2 (not shown), in the chamber between the piston 16 and diaphragm, is opened by a tension cord between the valve and the diaphragm when excess pressure is exerted on the latter due to internal leakage of liquid from outside the chamber.
Patent GB-148361-A (GB)
Title: Improved method of and means for controlling the lubrication of pistons and other engine parts
IPC: F01M1/10
Filed: 1920-07-09
Abstract: 148,361. Daimler-Motoren-Ges. Oct. 26, 1918, [Convention date]. Force-feed lubricating.-To lubricate the piston of an internal-combustion engine, an air-compressor a is connected to the crank-chamber so as to create sufficient pressure to force oil in an atomized condition between the piston and cylinder. The suction of the compressor may also be connected by a pipe f to the crank-chamber so as to reduce the pressure therein if the ordinary lubrication is too copious. The pipes b, f are controlled by three-way cocks d<1>, g<1>. If the cylinder is supplied with pre-compressed air, a second compressor driven by the engine is used for this purpose.
Patent GB-665006-A (GB)
Title: Process for the production of a sulphonated copper phthalocyanine dye
IPC: C09B47/12
Filed: 1949-08-04
Abstract: Copper phthalocyanine is sulphonated with an excess of 15 per cent oleum at 170-175 DEG  C. for about two hours in presence of mercuric sulphate, the reaction mixture is cooled, diluted with water, and brought to a pH not less than 8 (e.g. with 40 per cent caustic soda solution); the pH is then reduced to not more than 5 with acetic acid, and the mixture is cooled, e.g. to 30 DEG  C., and treated with excess of a -triphenyl guanidine in hot aqueous alcoholic acetic acid solution to form a guanidine salt of the dye, which salt is removed and dissolved in ethyl alcohol. Finally, the sodium salt of the sulphonated copper phthalocyanine is precipitated, e.g. by adding anhydrous sodium acetate at about 70 DEG  C.  The amount of oleum may be 10 times the weight of copper phthalocyanine, and the amount of mercuric sulphate up to 4 per cent of that weight.  The product is useful in colour photography.
Patent GB-710340-A (GB)
Title: Improvements relating to snap-action electric switches
Inventor: WHALE THOMAS HARPER
IPC: H01H23/16
Filed: 1950-08-16
Abstract: 710,340. Snap-action switches. TELEPHONE MANUFACTURING CO., Ltd. Aug. 10, 1951 [Aug. 16, 1950], No. 20360/50. Class 38(5) A snap-action switch comprises, Fig. 1, a blade spring member 1 and rigid member 3 pivoted together at 2 and having their other ends respectively pivoted at 4a, 5, to a mounting 4 and dolly 6. The member 3 is conducting and bridges contacts 11, 12. When the dolly is moved to the chainline position the toggle snaps down and the circuit is opened. An abutment 13 engages the member 3 to provide a positive action in the event of contact welding or spring failure. A further abutment 14 is required if a pair of lower fixed contacts are fitted. According to Figs. 2, 3, the dolly 22 has knife-edge pivots 26 and is slotted at 19 to receive a rigid insulating member 31 to which it is pivoted at 30. The member 31 has a V-notch 35 receiving the trough portion of a U-shaped wire spring 36 whose ends are pivotally supported in an opening 37 in the base 29. A contact piece 32 carried by the member 31 bridges fixed contacts 45, 46, when the dolly 22 is moved to the right to snap the member 31 down. On movement of the dolly to the left an abutment 51 is engaged by the member 31 to provide positive action should the contacts weld. The snap mechanism may be duplicated to form a double-pole switch, Fig. 5 (not shown). Alternatively, the mechanism may be duplicated to form a two-way switch in which a different pair of contacts is bridged in each of the switch positions. A push-pull rectilinearly-moving member may replace the dolly.
Patent GB-201400-A (GB)
Title: Improved parlour or table game apparatus
IPC: A63F7/06
Filed: 1922-07-26
Abstract: 201,400. Macinnes, P. G. R., and Black, G. July 26, 1922. Table games.-Appliances for playing a table game comprises a series of striking appliances F slidably mounted on universal joints situated on the upper edges of a rectangular frame B, C. A cloth is stretched beneath the frame and secured by spring clips A to the end pieces C. Each striking appliance is formed of a stiff wire bent at right angles and provided at the one end with a club-like head G and at the other with a handle H. The upper part of the wire passes through a sleeve J pivoted to one end of an angled link K, the other end of which is pivoted on a screw L to the frame. Goals E are provided in the end members C. The frame is collapsable and held together during play by pivoted hooks D.
Patent GB-695641-A (GB)
Title: Improvements in and relating to fishing
IPC: A01K73/00
Filed: 1950-08-17
Abstract: 695,641. Fishing. GERNOW, A. Aug. 17, 1950 [Aug. 20, 1949], No. 20448/50. Class 48. A fish-catching device comprises a funnel shaped trawl net 3 provided with towing warps 2 connecting the net mouth to towing craft 1, with additional warps 6 connecting the bag end of the net with a mother-ship 8, and with a releasable blocking device normally closing the bag end and adapted to be connected to an opening in the ship, the additional warps 6 being adapted for hauling the net, when filled with fish, up to the mother-ship whereupon the blocking device is connected to the opening in the ship and then opened to allow the fish to pass into the ship. The blocking device comprises a circular or rectangular frame 5 fitted to an extension of the bag end and a piece of metal netting releasably secured in the frame. The opening in the mother-ship is located under the water surface and comprises a frame 7 corresponding to the frame 5 and normally closed by a throttle. A pump on the mother-ship draws the fish through the frame 7 and along a tube to a sorting grid on the deck or to holds. A closure device comprising steel wires running through rings may be fitted to the mouth of the net. The towing craft 1 may be surface vessels or underwater vessels electrically driven from a dynamo on the mother-ship and provided with side and depth steering devices controlled from the mother-ship.
Patent GB-577291-A (GB)
Title: Process for uniting rubber to textile fabrics
IPC: C08J5/06
Filed: 1943-12-08
Abstract: Textile fabric is bonded to rubber by depositing on the fabric a bonding metal which is attacked by sulphur under the conditions which exist when the rubber is vulcanized in contact with it, applying the metallised fabric to an unvulcanized rubber base, and vulcanizing the combined rubber and metallised fabric elements. The metal may be an alloy containing at least one constituent which is attacked by the sulphur, such as an alloy of copper and zinc, in which case the copper is attacked and the zinc is a diluent.  A brass containing 70 per cent of copper and 30 per cent of zinc is suitable.  The bonding metal must firmly adhere to the fabric and may be applied by electro-deposition or by metal spraying (for example to asbestos fabric).
Patent GB-827104-A (GB)
Title: Improvements in or relating to rotary pumps
Inventor: ANDERSON FRANK
IPC: F04C2/344
Filed: 1957-06-28
Abstract: 827,104. Rotary pumps. COAL INDUSTRY (PATENTS) Ltd. June 27, 1958 [June 28, 1957], No. 20543/57. Class 110 (2). A miniature pump of the outwardly-sliding vane type is driven by an electric motor 22 of <1>/750 to <1>/1000 H.P., the diameter of the casing bore 10 is between ¢ and # inch, the outlet port 18 is disposed at an angle of 75 to 90 degrees to the normal through the point of minimum clearance between the rotor 15 and stator 10, and the inlet port 17 is placed diametrically opposite the port 18. A universal coupling 23 connects the motor 22 and the pump. The vanes 21 may be made of resin-bonded paper or linen, the casing of cast iron and the rotor of mild steel.
Patent GB-489810-A (GB)
Title: Improvements in or relating to reversing control apparatus for a plurality of electric motors
IPC: H02P23/00
Filed: 1937-07-24
Abstract: 489,810. Control of several motors. IGRANIC ELECTRIC CO., Ltd. July 24, 1937. No. 20548. Convention date, July 24, 1936. [Class 38 (iii)] Continuous reversals.-Each of a number of motors 5, 6, 7, which may drive the cylinders of a washing machine, is periodically reversed under the control of respective cam-shaft controllers, and means are provided whereby the relative angular positions of the controllers may readily be adjusted during normal use to give correct timing of the reversal of the motors. The reversing control is effected by contactors 10, 11, controlled by cam-shafts 28 actuating contacts 33a, 34b, 44b, and 45a, and the cam-shafts are driven by respective pilot motors 14. The relative angular positions of the several cam-shafts are initially adjusted by means of discs 31 marked with the legends shown, so that the adjustment is determined by the number of motors forming an operative group. The pilot motors may be used for the adjustment by operation of switches 17, and, the motors are grouped by closing switches 21 and 20, the switches 17 being operated to their left-hand positions. Where three motors of a group operate, one disc 31 is moved to register the legend 3<1> with its pointer 47, the next disc is adjusted to the legend 3<2>, and so on, two of the legends 2<1>, 2<2>, being employed where only two motors operate. The marking of the discs for a group of eight motors is described with reference to Fig. 2 (not shown). By the initial adjustment of the cam-shafts the relative angular displacement of the shafts is made appropriate to the number of motors operating and the reversing of the motors is effected in a suitable timed sequence. Instead of the singlephase pilot motors (as shown), the cam-shafts may be operated by respective ratchet mechanisms actuated by respective electromagnets energized intermittently in common from an intermittent contact maker driven by a single pilot motor which may be electrical or mechanical. The cams may operate reversing switches directly.
Patent GB-828412-A (GB)
Title: Process for agglomerating iron concentrates
IPC: C22B1/24
Filed: 1958-06-26
Abstract: A process for preparing hardened aggregates from loose, finely divided reduced iron concentrate material containing an appreciable amount of metallic iron comprises the steps of agglomerating the material to form a green aggregate, treating the green aggregate with carbon dioxide and moisture, and ageing the treated aggregate in the presence of an oxygen-containing gas to convert the green aggregate to a hard aggregate.  Finely ground reduced iron ore containing at least 60% metallic iron and 1% moisture is pressed into briquettes using pressures between 500 and 100,000 pounds square inch and then treated with carbon dioxide followed by ageing in air.  Part of the moisture may be added simultaneously with the carbon dioxide. Pre-reduction may take place in a rotary kiln and treatment with CO2 may be at atmospheric pressure or above.
Patent GB-615757-A (GB)
Title: Improvements relating to variable pitch propellers
IPC: B64C11/42
Filed: 1946-07-10
Abstract: 615,757. Fluid-pressure servomotor-control systems. GENERAL MOTORS CORPORA. TION. July 10, 1946, No. 20558. Convention date, Aug. 30, 1945. [Class 135] [Also in Group XXXIII] The pitch of the blades of a variable-pitch propeller is varied by hydraulic pistons in the blade roots, moving on helical splines, the pressure of the liquid being normally under the control of a centrifugal governor. Means are provided for blade control independent of the governor when engine starting, idling, when " braking " the aircraft by the propeller, when taxi-ing, and when the governor fails, to avoid exceeding a maximum pitch, and for " feathering." The adjustment of the governor valve 315 is made by hand (lever 500, Fig. 40, lever 152, Fig. 1), this controlling the pressure applied to the piston 378 by pump 165. Movement of this piston moves cam 4061 through differential 392<1>, 394<1>, 395<1> to open distributer valve 109 and allow fluid from pump 168 to move pistons P in the blade roots. These pistons reset valve 190 through the differential. For engine starting, when fluid pressure is low, movement of piston 378 by the spring 386 is limited by the cam surface 381a contacting roller 357 so that a minimum pitch is maintained. This limit also operates when the engine is idling. For braking, roller 357 is moved to contact cam surface 381b allowing cam 406<1> to move up and admitting pressure fluid to reduce blade pitch to negative values. The simultaneous movement of roller 325 puts the governor 315 out of action. A similar position of the control is used during taxi-ing. For feathering, control 500 is moved to make roller 357 contact cam 381c, thus causing valve 190 to move to the right. Simultaneous movement of roller 325 puts the governor valve 315 out of action, the cam surface 381c acting to move the piston 378 instead of fluid pressure. Valves 432, 456 are provided to allow the accumulator 59 to complete the feathering movement after the pressure from pump 168 has fallen below a given minimum. Flow control valve unit 240 operates to bring into play the output of the two auxiliary pumps 166, 167 when the pitch movement required is large, the fall of pressure in the main pipe 239 being great. Specification 545,520, [Group XXXIII], is referred to.