baber/WOPTO huggingface dataset:
Patent GB-868000-A (GB)
Title: Improvements in or relating to circuit breakers
IPC: H01H33/32
Filed: 1958-04-21
Abstract: 868,000. Gas-blast switches; protective arrangements. I-T-E CIRCUIT BREAKER CO. April 21, 1958 [Oct. 11, 1957], No. 12602/58. Class 38 (5). A gas-blast switch has a hollow contactcarrying member 14 through which blast gas passes into an arc-chute 30 where it acts on an arc extending between arc-runners 36, 37, the member 14 also having an opening 50 intermediate its ends to direct a small portion of the blast gas into the region occupied by the switch contacts 16. . . 19 when closed to scavenge that region and assist transfer of the arc to the arc-runners 36. The blast gas is supplied under the control of a solenoid-operated valve 150 from a reservoir 99 which also supplies gas for opening and closing operations. To open the switch an opening valve 111 is operated to apply gas to a piston 126 which moves to the left to release a latch 130 and to move a valve piston 125 so that gas is supplied to a cylinder 102 on the right of a piston 103. When the valve 111 is permitted to close, a spring 143 restores the valve pistons to the positions shown, so that a subsequent opening of the closing valve 110 results in the return movement of the piston 103 to close the switch. Fig. 3 illustrates an " anti-pumping " control circuit in which the operation of the contacts 204 of a closing switch causes the energization of the solenoid 210 of the closing valve 110 from a supply source 203, the solenoid 210 being de-energized by the opening of contacts 206 which are opened when the member 14 reaches its closed position. Should a fault exist, overload relay contacts 215 close to energize the solenoid 211 of the closing valve 111 and the resulting pressure in the pipe-line 112 operates a pressure switch 220 to change-over contacts 205, 217 and 214. The opening of contacts 205 causes the de-energization of the closing solenoid 210 should the contacts 204 remain closed, and contacts 217, 214 complete a holding circuit for the solenoid 211 so that the member 14 is opened and the contacts 204 must be opened before any attempt at reclosure can be effected. Contacts 216 in series with the operating solenoid 250 of the blast valve 150 open when the member 14 has completed twothirds of its opening stroke. Specification 804,660 is referred to.
Patent GB-118668-A (GB)
Title: Improvements in or relating to Softening Water.
IPC: C02F5/02
Filed: 1917-09-03
Abstract: 118,668. Edser, E., Tucker, S., and Minerals Separation, Ltd. Sept. 3, 1917. Purifying liquids.-Calcium and magnesium salts or other metallic impurities are precipitated by ordinary reagents, the precipitate being formed into a froth with the aid of a suitable frothing- agent. such as oleic acid soap, eucalyptus oil, or turpentine, and removed by flotation, the process being analogous to the processes of ore treatment described in Specifications 7803/05, 2359/09, 21857/10, and 105,627, [Class 82 (ii), Washing granular &c.]. Trisodium phosphate or a mixture of hydrogen disodium phosphate and caustic soda are preferred as precipitants for calcium and magnesium salts; but other known precipitants may be used. Soluble salts of copper or zinc may be precipitated with lime or caustic soda and the precipitate formed into a froth with the aid of turpentine.
Patent GB-216526-A (GB)
Title: Improvements in photographic copying machines
IPC: G03B27/58
Filed: 1924-05-22
Abstract: 216,526. Jones, A. R.., (Assignee of Caps, A. W., and Leininger, I. E.). May 25, 1923, [Convention date]. Enlarging, copying, and reducing; cameras fitted with means for treating negatives.-In a photographic copying machine of the kind in which a sensitized strip is exposed and the exposed portion directed to a severing knife which delivers it to developing and finishing apparatus, a rotatable frame is provided in the camera opposite the knife for holding the sensitized material so that either side thereof can be. brought to the exposure position. In one form, paper strip 14 sensitized on both sides is supported in a roll 15 in a casing 16 carried by a rotatable table 17. The paper is fed forward, by mangle-rollers 24 actuated by handles 25 outside the camera, between two glass plates 19, carried by a frame 22 depending from the table 17, between which it is held in the focal plane of the exposure lens 9. The exposed portion is severed, after being moved forward, by a knife 27 reciprocated to and from a fixed bar 26 by a shaft 29 and a handle outside the camera. The table 17 is held light-tight in a track 18 on top of the camera by a ring 21 and a felt ring 20. The back 37 of the camera can be opened to permit one of the glass sheets 19 to be replaced by ground glass for focusing. The apparatus may be used in conjunction with means of the kind described in Specification 29323/09 for developing and fixing the exposed portions.
Patent GB-130743-A (GB)
Title: Improvements in or relating to the Treatment of Textile Fibres and Fabrics and other Porous or Absorbent Substances to render same Less Inflammable.
IPC: D06M11/52
Filed: 1918-08-03
Abstract: 130,743. Spence & Sons, P., and Craig, T. J. I. Aug. 3, 1918. Proofing.-To prevent smouldering of textile fibres and fabrics and other porous substances which have been treated as described in Specification 16153/14, or by other fire-proofing processes, they are impregnated with sulphur either before or after fire-proofing. A strong colloidal solution of sulphur containing some acid is obtained by passing sulphuretted hydrogen into a saturated solution of sulphurous acid gas. The acid is neutralized with sodium carbonate or bicarbonate and the mixture applied to the fabrics &c., which are then dried, preferably by heat. The fabrics &c. may be impregnated with a dilute solution of sulphur in carbon disulphide, which is then evaporated off and recovered for re-use. The treated fabrics are then washed to remove any soluble salts, and dried.
Patent GB-650119-A (GB)
Title: Improvements relating to devices for the removal of heavy access covers
IPC: E02D29/14
Filed: 1948-05-10
Abstract: 650,119. Picking-up-tools. MARSDEN, H. W., MARSDEN, G. H., and MARSDEN, E. G. May 10, 1948. No. 12748. [Class 61 (ii)] [Also in Group X] A tool for lifting a heavy access cover comprises a circular handle G and a screwed portion F to en gage screwed sockets in the cover. The tool may also comprise an ordinary lifting key H and leverage rods J the ends of which may be formed as tools. The portion F may have a small central clearance hole for the removal of dirt from the sockets.
Patent GB-788431-A (GB)
Title: Improvements in and relating to shaft kilns
IPC: F27B1/20
Filed: 1956-04-26
Abstract: 788,431. Charging shaft furnaces. DELO (ENGINEERS), Ltd. April 26, 1956 [May 10, 1955], No. 12824/56. Class 51 (2). [Also in Group XIII] In a shaft furnace 8 damp granules, e.g. mixed cement raw materials and fuel, pass from a hopper 5 through an annular shoot 3 defined by a perforated or slotted sheet-metal cone 1 and a perforated or slotted, sheet-metal, frustoconical shell 2. Hot gases pass from the shaft through the shoot 3 to dry the incoming granules, and are led off through a duct 4. A stirring bar 7 is provided.
Patent GB-696452-A (GB)
Title: Improvements in fuel supply systems for gas turbine engines
IPC: F02C7/22
Filed: 1951-05-31
Abstract: 696,452. Gas turbine plant. HOBSON, Ltd., H. M., and TYLER, S. R. April 25, 1952 [May 31, 1951], No. 12886/51. Class 110(iii) [Also in Group XXIX] In a fuel system for aircraft gas-turbine engines in which a spill valve 3 is actuated by a servo mechanism 5 governed by a flow control unit (not shown) for maintaining a required rate of flow of fuel selectable by the pilot but varied in response to changes in ambient atmospheric pressure, and by a maximum speed governor, one side of the servo mechanism being exposed to a high pressure fluid and the other side having a restricted connection 7 with the high pressure side and connections 9, 10 to the flow control unit and a governor operated valve 11, .respectively, the high pressure side of the servo mechanism is connected to the spill line 4 upstream of a pressurizing valve 18. The arrangement eliminates " speed run-up " which occurs if the high-pressure side of the servo mechanism is connected to the delivery side of the fuel pump 1, when reduction of pressure in the delivery conduit 2 due to decreased fuel consumption at altitude is transmitted to the governor valve 11 resulting in a smaller force acting on the valve in opposition to the force which is responsive to speed, so that the speed at which the valve opens to bleed fuel from the servo mechanism to increase the spill opening increases with altitude. The valve 11 is operated by a spring-loaded diaphragm 13 (or piston) which is subject to the pressure difference across an engine-driven impeller 15. Alternatively, the valve 11 may be operated by a mechanical governor. Instead of the spring-loaded servo piston 5, differential pistons may be employed.
Patent GB-206181-A (GB)
Title: Improvements in processes and apparatus for the extraction of oil from vegetable fruits and nuts
IPC: C11B1/04
Filed: 1922-05-08
Abstract: 206,181. Moseley, L. H., Dyke, F. M., and Lever Bros., Ltd. May 8, 1922. Fats and fatty oils, extracting.-Palm oil fruit is treated to remove the pericarp and extract the oil therefrom by subjecting a pulp of the wet cooked pericarp to attrition by the nuts so that the cell walls are ruptured and the detached fibres are disintegrated into short lengths. The fruit is cooked by steam, heating to 60‹ C., autofermentation, or other known process, and is then agitated, preferably at 85-90‹ C., in a kettle 1 provided with a perforated bottom 2, stationary arms 6 and beaters 5. About 10 per cent of water is added through a pipe 7, and after 5 minutes further amounts up to a total of 35-50 per cent. The comminuted mass of fibre and flesh is worked through the bottom and is then treated in a centrifuge with a closed basket to separate the oil and water. The oil is afterwards separated from the water as by centrifuging or by allowing to stand in heated tanks. The nuts are exposed to sunlight for a week or two, or are heated rapidly as described in Specification 206,536, [Class 58, Grain &c.] to separate the kernels. Specifications 6365/14 and 206,762 also are referred to.
Patent GB-791726-A (GB)
Title: Improvements in or relating to level recording apparatus
IPC: G01D1/14
Filed: 1956-04-27
Abstract: 791,726. Counting-apparatus. STANDARD TELEPHONES & CABLES, Ltd. April 27, 1956 [April 29, 1955], No. 12977/56. Class 106 (1). [Also in Group XVIII] In apparatus for recording variations in the level of a parameter a first counter is stepped on by one when the parameter level increases (or decreases) through a predetermined level, and a source of pulses of fixed frequency is rendered operative while the parameter level is greater than (or less than) the predetermined level, which pulses actuate a second counter, thereby giving an indication of the time spent above (or below) the predetermined level. The time variation of a parameter is shown in Fig. 1. If it is desired to count the number of times the parameter level decreases through level 3 and the amount of time spent below level 3 the discriminating unit 2, Fig. 2, is adapted to give an output whenever the parameter level passes through this level. At point B an output passes from the discriminating unit 2 to the counter 4 which steps on one and to the time integrating circuit 5 which is rendered operative, thereby causing a timing circuit 6 to emit pulses at predetermined regular intervals to step on the counter 7. When the point B<SP>1</SP> is reached the counter 4 is not altered but the time integrating circuit is rendered inoperative. There is no further registration until the point C is reached when registration is re-commenced as described for point B. The counter 4 thus registers the number of times the parameter level has decreased through level 3 and the counter 7 will give an indication of the number of units of time during which the parameter level is below level 3. The counters may be adapted to give a printed record at predetermined time intervals on a paper tape 8. An arrangement adapted to operate with respect to five different predetermined parameter levels is described (Fig. 4, not shown).
Patent GB-236350-A (GB)
Title: Means for introducing capacity effects in alternating electric current systems and apparatus
IPC: H01G9/02
Filed: 1924-05-27
Abstract: 236,350. Wall, T. F. May 27, 1924. Electrolytic condensers.-Plates for an electrolytic condenser such as that described in Specification 215,129 are prepared by immersing lead plates coated with spongy lead in dilute sulphuric acid to which has been added an oxidizing agent such as chromium trioxide until the lead has been sufficiently oxidized, and then washing. A small amount of oxidizing agent, such as nitric acid, is preferably added to the acid in the condenser. as described in Specification 215,897.
Patent GB-715414-A (GB)
Title: Improvements in or relating to watering devices
IPC: B05B3/04
Filed: 1952-05-22
Abstract: 715,414. Spray-producers. SALMINEN, P. V. L. May 22, 1952, No. 13015/52. Class 69 (3) A rotary sprayer comprises a stationary base 1, a body 2, thereon which turns about a vertical axis and carries a spray pipe 6 which is mounted on a horizontal shaft 16 and oscillated in a vertical plane, and a regulator comprising a guide rail with associated levers which controls the spray pipe movement so that areas of predetermined shape can be sprayed. A hydraulic motor in the body drives the moving parts and includes a cylinder 40, Fig. 5, a piston 41 and a piston rod 3 and water is fed alternately to opposite ends of the cylinder by an oscillated valve device 43. Transverse rods 4 are connected to the top of the piston rod, and levers 5 on the rods 4 are connected by a pin 9 to levers 8, which are connected by pins 7 to the spray pipe. A rod 17 is joined to a rod 4, and is connected to a bell-crank 19 pivoted at 20 to the body and carrying a pivoted catch 23. The catch engages a circular ratchet ring 24, and on each complete stroke of the piston the body is turned through a predetermined angle. The regulator controlling the elevation of the spray pipe comprises a rectangular or quadrangular guide rail 25 engaged by a fork 26 on the end of a rod f2 pivoted at 27 on a part 28 of the body. A lever 10 is connected between the rod 12 and pin 9, and the rod takes different slanting positions as the body turns. In order to spray circular areas the fork is removed and the rod fixed on the body. The valve device 43 has a shaft 49, Fig. 1, which includes a pin 50, and the valve is oscillated by a disc 51 which is reciprocated about its axis by a lever 55. The latter is secured to a rod 4 on the piston rod, and its opposite end is slotted and engages a pin 57 on a disc. The pin 50 is engaged alternately by disc parts 52, and the disc is moved to its limit positions by a spring 58. Water is supplied at 30, Fig. 1, and passes through a shaft 31, Fig. 5, to the spray pipe, and a part thereof passes through a passage 34, and a strainer, to the hydraulic motor. The exhaust from the motor is directed through a pipe 62 to a nozzle 63, and the velocity of the sprayer, and hence the quantity of water sprayed during each revolution, is regulated by changing the said nozzle.
Patent GB-384179-A (GB)
Title: Apparatus for the treatment of bodily cavities
IPC: A61F7/12
Filed: 1932-05-06
Abstract: 384,179. Surgical irrigators ; heating and cooling appliances ; dilators. BOROSINI, A. DE, 1, Bayrische Vereinsbauk, Garmisch, Germany. May 6, 1932, No. 13098. [Class 81 (ii).] A surgical irrigator is provided with dilatable rubber mantles and metal or like casings closed at their upper ends, which can be exchangeably secured in air- and watertight manner over that part of the irrigation tube introduced into the body cavity, by way of parts to be screwed, or fastened by means of a bayonet lock or co-operating conical or domed surfaces, to a supporting head provided on said irrigation tube without the body cavity. The irrigation tube 2 is detachably secured to a supporting head 1 over which is screwed a nut 7 which grips the rubber mantle 4 between a pressure ring 6 and the head 1. Dilation of the body cavity or internal heating or cooling is effected by injecting liquid or air by means of a bulb 8. A non-return valve may be provided or the tube 3 supplied with a cock. The nut 7 may have an upward extension acting as a shield for part of the mantle 4 and allowing expansion of the end part only. If the tube 2 is shorter than the mantle 4 it may be prolonged by fitting a rubber tube thereover. For cooling or heating without dilation, a metal or like casing is secured over tube 2. As shown in Fig. 3, the nut 7 is formed with a domed seating for the casing 13. The casing could, however, be adapted to fit directly over the head 1, or the nut 7 be secured to the head by means of a bayonet lock. A three-way cock 14 and an evacuation tube 12 are provided, whereby alternate heating and cooling can be effected. The tubes 3, 12 may be united within the head 1 into one double tube.
Patent GB-278401-A (GB)
Title: Improvements in or relating to timing devices for electrical toasters and like apparatus
IPC: H05B1/02
Filed: 1927-01-15
Abstract: 278,401. Amos, C. F. Jan. 15, 1927. Clockwork actuation.-An electric time switch for toasters &c. comprises a clock-driven arm traversing an arcuate contact plate for determined periods, together with means for disengaging the arm from the clock spindle for initial setting purposes, and a movable stop for holding the arm in its initial position. As shown, the clock-driven contact arm 6 traverses the arcuate contact 14 under spring pressure exerted by a nut 9 through a spider 13, the arm 6 being clutched to the clock spindle 3 bv clutch plates 4, 5. The initial setting of the contact arm is obtained by de-clutching and the time of traverse is regulated by varying the spring pressure upon the arm, a pivoted stop 16 being provided for retaining the arm in its initial position. The circuit to the toaster &c. is moved when the arm comes over one or more insulating insets and adjustable stops may be provided for arresting the arm at determined points. One form of adjustable stop, Fig. 4, comprises an insulating wedge 25 adapted to travel along and be clamped to a recessed arcuate contact plate at any point thereon. Another form of contact comprises grooved stops co-operating with slots in the casing above the contact plate. The face of the apparatus may be in the form of a time dial.
Patent GB-131231-A (GB)
IPC: A62C13/00
Abstract: 131,231. Meigs, C. H. Jan. 30, 1919. Extincteurs.-Relates to means for supporting and rigidly clamping the acid receptacle in the neck of the casing of an extincteur, more particularly applicable to the type adapted to produce fire-extinguishing foam. The acid-receptacle 15 is supported by means of a cage consisting of straps 17<a> secured to a ring 18, which is pressed by the cap 13 and a washer 13<a> against an inwardly-projecting flange 19a of a ring 19 secured to the neck 12 of the casing 10. Openings are provided in the flange 19<a> for the passage of the straps 17<a>, whereby proper seating of the cage and receptacle is ensured when the extincteur is charged, and subsequent rotary movement due to shocks &c. is prevented. The gravity stopper 16 is grooved on the underside to seat upon a ring 25 having a knife-edge top, sticking of the stopper due to the deposition of crystals being thus avoided.
Patent GB-377755-A (GB)
Title: Improvements in and connected with radio loud speakers and the like sound reproducing apparatus
IPC: H04R1/28
Filed: 1931-05-04
Abstract: 377,755. Sound magnifying and directing appliances. BROCKWAY, W. A., 2709, Birchwood Avenue, Bellingham, Washington, U.S.A. May 4, 1931, No. 13127. [Class 13.] External and internal resonators are connected directly to each other by a supporting-device carried by a wall of a horn. In one form, external resonators 21, 24 which each consist of sounding boards 21, 29, Fig. 5, secured to end partitions 28 so as to leave edge spaces 21a, are each connected, through the wall of the horn, by a wooden rod 22, one end of which engages a hole in a cross-piece 30 joining the partitions 28, with an internal resonator 20 consisting of a sounding board mounted on a oross-piece 27 which is secured to the other end of the rod 22. The horn is supported in a cabinet 8 on rails 12, 13, and a shelf 11 is provided for supporting a radio set. The horn may be made of bagasse board.
Patent GB-904362-A (GB)
Title: Improvements in mounting of targets
IPC: F41J1/00
Filed: 1959-04-17
Abstract: 904,362. Targets. WOODFORP, H. G., and SPEAR & SONS Ltd., J. W. April 19, 1960, No. 13139/59. Class 20 (1). [Also in Group XV]  A target 1, e.g. of card, used in toys or games, is mounted so that when struck it pivots on a sheet-metal base 2, the target being attached to a W-shaped spring wire 6 having spigot ends 7 pivoted in tubular sleeves 3 of the base. The central limb of the spring wire 6 bears against a surface 8 of a tag 4 in the form of a rectangular U and yields when the target is struck to allow the target to pivot through a right-angle. The base 2 has an orifice 11 to facilitate mounting on a rotatable spindle.
Patent GB-1125415-A (GB)
Title: Rotary internal combustion engine
IPC: F02B53/00
Filed: 1966-03-25
Abstract: 1,125,415. Rotary internal combustion engines. H.M.A. ASHTON. Oct. 11, 1966 [March 25, 1966], No.13189/66. Heading F1F. A rotary I. C. engine comprises a casing ring D, Fig. 1, eccentrically mounting a rotor A encompassed by a steel strength casing ring G and having a plurality of radial slots fitted with vanes B urged outwardly into sealing engagement with the ring D by the engagement of pegs C in annular cam tracks in the casing and plates to divide a crescent-shaped space into variable volume chamber FF. The casing ring D includes exhaust ports L, and a variable compression exhaust port M and is fitted with a glow-plug at location R whilst the vanes B include enlarged heads dividing the slots into main and auxiliary suction and compression chambers E and F. A gaseous fuel air mixture from a carburetter is sucked into both the chambers E and F when these chambers are expanding on outward movement of a vane for the chambers E and inward movement for chambers F. On reversal of vane movement the mixture is compressed in the respective chambers ignited'and transferred through ports in the casing and plates to the smallest of the chambers FF (chamber EE) where it expands to rotate the rotor A anti-clockwise. Not all the spent gases are exhausted through the ports L, some remains trapped between the vanes and is compressed in the chamber FF adjacent the chamber EE to create a back pressure whose value is controlled by the amount of opening of the port M. The spent gases at a pressure of about two atmospheres mix with the incoming fresh charge in the chamber EE to raise the effective compression ratio of the engine. To start the engine fuel is supplied through a priming tap to the chamber FF adjacent the glow-plug. The glow-plug is switched on whence the fuel vapourizes and the expanding gas causes rotation of the rotor. After starting the glow-plug is switched off and the engine continues running by the ignition of the gaseous mixture in the chamber EE.
Patent GB-255026-A (GB)
Title: A process of manufacture of wafer sandwich biscuits
IPC: A21D13/00
Filed: 1926-05-25
Abstract: 255,026. Komolka, J. July 10, 1925, [Convention date]. Biscuits and cakes.-In making sandwich biscuits, cocoa powder is included in the paste constituting the intermediate layer and it is also made an ingredient of the two wafers or sheets, and after the sheets have been baked, one side of one of them is dipped into the paste which then serves as a binding medium when the two sheets are pressed together, no further baking being necessary.