baber/WOPTO huggingface dataset:
Patent GB-495882-A (GB)
Title: Improvements in electric regulating switches employing a conducting liquid
IPC: H01H29/04
Filed: 1937-06-01
Abstract: 495,882. Mercury switches ; controllers. ENGLISH ELECTRIC CO., Ltd., CALVERLEY, J. E., CORNER, H. S. POUND-, and SEDGFIELD, B. June 1, 1937, No. 15195. [Classes 38 (iii) and 38 (v)] A mercury switch for use as a motor controller comprises a stack of metal rings 1 separated by insulating rings 2 each having a lip 2a which forms an annular trough or cup for retaining mercury in contact with the rings 1. A metal rod 3 passes through the rings and has nuts 24, 27 for clamping the stack together and to the lid 4 of a vessel 5. Admission of air through a valve 11 acts on oil in the vessel 5 to cause mercury in an inner vessel 6 to enter a base 3a in rod 3 by way of an electromagnetically controlled valve 12 and rise in the space between rod 3 and rings 1, 2 to complete circuit successively between the common bus-bar 3 and rings 1 through the mercury cups. An oil seal is provided at the top of the apparatus and the whole is filled with inert gas. In a modification, mercury cups are also provided on the bus-bar 3. In a further modification the compressed air acts on a diaphragm which supports the mercury which is forced up through an adjustable needle valve. Fig. 1 shows the device applied to a traction motor control system in which motor acceleration is initiated by the driver's master controller and then continued automatically under the control of a current limit relay. Movement of the controller to the first notch closes a circuit through main circuit-breaker 44, overload relay 45, current-limit relay 46, motor 47 and series field windings 48, 49 and starting resistance 50. On moving to second notch, coil 11a opens air valve 11 and coil 13a opens mercury valve 12 and mercury rises in the column at a speed which is checked by intermittent closure of valve 12 by means of the current-limit relay. When the mercury reaches the top of the column it engages a control contact 42 to energize a relay 52 to close valve 12. Movement of the controller to the off position opens the main circuit-breaker 44 and closes air valve 11 allowing the column to fall, but until all the mercury has returned to the reservoir 6, an interlock relay 51 is energized through control contact 41 to prevent reclosure of the main circuit-breaker. Certain of the upper sections of the column are used to short circuit stops of a resistance 43 in shunt with series field winding 49. Fig. 7 shows an arrangement in which the rising mercury cuts in resistances 50a, 50b in parallel with resistance 50, so as to reduce the localized current in the mercury, the last stage being effected by a separate contactor 59.
Patent GB-378976-A (GB)
Title: A new or improved can or container
IPC: B65D21/02
Filed: 1931-05-22
Abstract: 378,976. Cans &c. SHELL-MEX, Ltd. and HANCOCK, H. W., St. Helens Court, Great St. Helens, London. May 22, 1931, No. 15226. [Class 66.] In a container 1 comprising a compartment 4 for the reception of fuel such as petrol and a second compartment 5 for the reception of a withdrawable container 8 for lubricating oil, the withdrawable container is provided with a cover which extends over the mouth of the compartment 5 when the withdrawable container is in position therein. A partition 2 with an end-piece 3 may serve to separate the two compartments and it may be provided with a flange at the top to secure it to the container ; the withdrawable container having a disc which overlaps the mouth of the compartment for the oil container. Alternatively the top of the partition 2 may be curled over at 6 and soldered to the top 7 of the can and the cover 12 secured to the oil container 8 may have a flange 13 which forms a joint with this rolled-over portion. The withdrawable container has a neck 9, and a handle secured to eyes 10 on the cover 12. Access to the compartment 4 may be had by means of the aperture 14, which may be closed by a screw-cap 15.
Patent GB-317881-A (GB)
Title: Improvements in or relating to apparatus for supporting large reels of paper or the like for rotation during winding and unwinding operations
IPC: B65H16/06
Filed: 1928-05-24
Abstract: 317,881. Holland, H. G. May 24, 1928. Feeding and winding webs. - Apparatus for supporting paper or other reels during winding or unwinding comprises two centre pieces to engage the reel bore, one centre piece being axially adjustable in a carrier which is rotatably mounted in a supporting head and provided with a friction driving gear, means being provided to adjust the friction of the drive. One end of the reel 11 is supported on a conical centre piece 12 having a. spindle portion 14 rotatably mounted in a screw 15 which is threaded in a fixed support 18 and provided with a handle 19 by which the centre piece may be engaged with or disengaged from the reel. A screw 20 is provided to lock the screw 15 after adjustment, and a roller bearing 16 and ball thrust bearing 17 for the spindle 14 are also provided. A brake band 34 adjustable by a Bowden wire 36 is mounted on the piece 12 and is movable therewith on an extension of the support 18. The opposite end of the reel is mounted on a centre piece 13 rigid with a screw 21 threaded in a sleeve. 20 rotatable in a fixed support 23. The screw 21 is axially adjustable by a handle 32 after the release of a lccking nut 22. A driving device for the centre piece 13 comprises a gear 24 on the sleeve 20 engaging a gear 25 loose on a shaft 26 and adapted to be connected by a friction clutch to a driven chain wheel 27. The friction of the clutch is adjustable by a handwheel 28 through a spring 29 and thrust bearing 30. In a modification of the driving device, a driving pulley is mounted loosely on the screw 21 and is connected bv a friction clutch directly with the sleeve 20. The centre pieces may be provided with ribs 33 and also with rectangular recesses 50 to receive spindles on which small reels are wound.
Patent GB-992692-A (GB)
Title: Improvements in or relating to xerography and thermography
IPC: H04N1/29
Filed: 1961-04-27
Abstract: 992, 692. Coating apparatus. KODAK Ltd. April 27, 1961 [April 27, 1960(2)], No. 15266/61. Drawings to Specification. Heading D1L. [Also in Divisions B2, B5, G2 and H1] An electrothermographic image on a re-usable insulating web 50 wound between supply and takeup rollers is developed as shown at 63 with a liquid toner suspension 60 supplied through a pipe 61 and carried off through a return pipe 62 for recycling.
Patent GB-544492-A (GB)
Title: Fuels for internal combustion engines
IPC: C10L1/24
Filed: 1940-10-15
Abstract: 544,492. Motor fuel stabilizers. STANDARD OIL DEVELOPMENT CO. Oct. 15, 1940, No. 15287. Convention date, Oct. 28, 1939. [Class 91] Motor fuels are stabilized by the addition of a small amount of a thiazole or a thiazoline of the general formula or a derivative thereof in which one or more of the hydrogen atoms are replaced by one or more of the groups halogen, hydroxyl, alkyl, aryl, amino, alkyl amino, aryl amino, -N-alkyl. -N-aryI, mercapto, alkyl mercapto, aryl mercapto or an isocyclic or heterocyclic ring including a fused on ring. Examples of compounds which are mentioned include thiazole, 5-methyl 'thiazole, 2-amino thiazole, 2-mercaptothiazole, benzothiazole, 6-chlor-benzathiazole, thiazoline. 4-ethyl-5-methyl thiazoline, 2-mercaptothiazoline, 2-mercaptobenzothiazole, 6-butyl-2-mercaptobenzothiazole, and 2-mercapto-naphthothiazole. It is stated that the addition of the compounds referred to above to motor fuel has the effect of repressing the formation of compounds which diminish the anti-knock properties of the petrol and which cause corrosion of the fuel containers.. Examples of fuel compositions are given. Specification 544,417 is referred to.:
Patent GB-168968-A (GB)
Title: Improvements in and relating to fans, propellers, and the like
IPC: B63H1/16
Filed: 1920-06-07
Abstract: 168,968. Lee, C. M. June 7, 1920. Screw and like propellers.-A screw-propeller or fan comprises a conoidal hub, a series of helical vanes, and radial or circumferential bracing means for the blades. The hub 2, Fig. 2, is conoidal in form and carries small helical blades 5 which may be formed in a press die from a sheet-metal blank, the flanges 6 being formed at the same time. The blades are attached to the hub by rivets 7. The blades are braced by rigid rods 8 which may have an elongated cross-section in the direction of movement of the fluid to minimize resistance. In the form shown in Fig. 4, a thin annular conoidal ring 9 connecting the blades is arranged parallel to the hub surface to brace the blades and to deflect the fluid in an axial direction. When the propeller is applied to the bow of a vessel, the conoidal hub deflects the water laterally and thus minimizes the fluid friction. The annular member 9 prevents too great a divergence of the water stream. The surface of the hub 2 preferably forms an angle of 45‹ with the axis, and the diameter of the blades 12 is preferably not greater than the diameter of the base of the hub. The form shown in Fig. 6 is adapted for the forward end of a vessel. The conoidal ring 13 is curved in cross-section with the concave side facing inward. The forward edge 15 is approximately parallel to the hub surface but the rear edge 16 is inclined inwards so that the passage for water is substantially uniform in cross-section. Each blade 14 is formed from a blank 14. Fig. 8, of approximately rectangular shape and bracing-rods 21 are provided. The blades may be extended on the outer face of the ring 13.
Patent GB-312167-A (GB)
IPC: F02C5/12
Filed: 1929-05-16
Abstract: 312,167. Holzwarth, H. May 21, 1928, [Convention date]. Working-fluid supply.-In a combustion turbine using solid fuel such as coal dust with the addition of a separate priming medium such as gas or oil, the coal dust is introduced into the combustion chamber before the priming medium. The admission of combustion air may take place during the whole, period of admission of coal dust and of priming medium. Fig. 2 shows an arrangement in which the admission valves are housed in a casing u formed integral with the combustion chamber h. The coal dust is supplied at a and passes through a hollow valve stem c past a valve seat e<11> into the combustion chamber. The combustion air is supplied from a duct n, and is controlled by a valve l concentric with the valve c. The valves are operated intermittently by fluid pressure. Baffles p are provided as a protection against back-firing, and the priming fluid which facilitates ignition is fed into the air stream from a pipe s as it passes through the baffles. In a modification the priming medium is sprayed into the combustion chamber through a separate valve, and a spring- pressed non-return valve is arranged on the coaldust feed pipe.
Patent GB-1261935-A (GB)
Title: Bipyridinium compounds
IPC: G03C1/73
Filed: 1969-03-25
Abstract: 1,261,935. Bipyridinium salts. DREXEL INSTITUTE OF TECHNOLOGY. 25 March 1969 [10 June, 1968], No. 15432/69. Heading C2C. N,N<SP>1</SP>-dimethyl-bipyridinium and N,N<SP>1</SP>-diarylbipyridinium salts are prepared by reacting an N-methyl- or N-aryl-pyridinium salt with an ionic cyanide.
Patent GB-562005-A (GB)
Title: Improvements in or relating to winch blocks
IPC: B63B23/18
Filed: 1942-11-03
Abstract: 562,005. Pulley hoists. LINE, C. A. Nov. 3, 1942, No. 15485. [Class 78 (v)] A winch pulley block comprises a drum H mounted between the cheeks C of the block and operated by a handle. A fairlead sheave P is mounted on the same shaft M as the plurality of main sheaves N<2> of this bottom block. The rope T from the upper block passes first round the main sheaves of the two blocks and is then taken for several turns round the drum H and finally led by way of the sheave P over a sheave G carried by a brake lever R pivoted at r<2> to the cheeks C. The lever R is hollow to allow of the rope passing through it on its way to and from a reservoir. The rope may be held in the hand while gripping the lever R and by exerting downward pressure on the latter the rope is pinched between the sheaves P and S with braking effect. The handle is disconnectable from the drum H by first swinging a spacer out of action and then pushing the handle and drum shaft G axially to slide keys on the latter out of corresponding ways on the drum.
Patent GB-515307-A (GB)
Title: Jointing between boiler shells and their settings
IPC: F23M5/02
Filed: 1938-05-24
Abstract: 515,307. External flues and settings of steam boilers. DANKS OF NETHERTON, Ltd., and MACMASTER, K. J. G. May 24, 1938, No. 15515. [Class 123 (ii)] A flexible joint between a boiler and its setting and flue walls is formed by a strip 3 of asbestos cloth or like non-metallic heat-resisting material which is secured at its edges to the boiler end plate or shell 1 by metal strips 5, Fig. 6, held by studs 6 and to the setting or wall 2 by plates 7 held by rag bolts 8. The space between the boiler plate or shell and the wall is filled with slag wool held in place by asbestos rope 13 secured by fastenings 14. The strip of cloth forming the joint around the blow-down recess is secured by an angle iron strip 17, Fig. 5, one limb of which shields the cloth from the hot gases. Asbestos or slag wool is packed in recesses in the top of the flue cover blocks and between the blocks and tapered tiles at the back of the blocks. The boiler sits on hollow asbestos rope in the seating blocks.
Patent GB-674040-A (GB)
Title: Improved fireplace
IPC: F24B1/183
Filed: 1948-06-09
Abstract: 674,040. Open fireplaces. SWAN, I. Feb. 2, 1950 [June 9, 1948], No. 15538/48. Class 126 [Also in Group XIII] An open fireplace comprises a box-shaped casing open at the front with a firegrate arranged near the bottom, a hot-water boiler which is constructionally distinct from the casing being disposed in the casing at the rear and spaced from the top of the casing to form a flue leading to the flue opening in the closed top of the casing, and firebricks being arranged in the casing at the sides and rear. The casing which is open at the front has upper and lower firebricks 13, 14 above which, against the rear of the casing is disposed a hot-water boiler 17. This boiler 17 slopes upwardly and forwardly and is spaced from the top of the casing to form a flue 21 leading to the flue opening 22. Upper and lower firebricks are arranged against the sides of the casing and a firebasket 10 is placed on a firebrick 12 in the bottom of the casing. The casing may be secured to the wall by tiebolts 29 attached to lugs 30, embedded in concrete at the front of the fireplace opening and extending to a cross-bar 32 which bears against the rear 9 of the casing.
Patent GB-381933-A (GB)
Title: Manufacture of emulsions
IPC: C08L95/00
Filed: 1931-05-27
Abstract: Bituminous paint or compositions are prepared by mixing with finely divided siliceous earth such as kieselguhr, or with a finely divided mixture of such earth and asphalt, a bituminous emulsion prepared with humic acid or similar substances as described in Specification 317,496, [Class 2 (iii), Dyes &c.]. Examples: (1) a bituminous emulsion containing 50 per cent petroleum asphalt or coal-tar pitch and prepared with humic acid is mixed with (a) 4 or 6 per cent of kieselguhr, (b) 10 or 20 per cent siliceous earth, or (c) 2 per cent of a mixture of siliceous earth and asphalt; the smaller proportions in (a) and (b) give products applicable with a brush, the larger proportions products constituting filling masses applicable with a palette-knife: (2) a bitumen dispersion prepared with acid, brown, alkali-soluble, high molecular constituents of beech-wood tar is mixed with 6 per cent of kieselguhr to form a product which can be applied with a palette-knife to fill joints or to cover stone surfaces. Specification 367,782, [Group V], is referred to.  The Provisional Specification states that the bituminous composition may be prepared by emulsifying the bitumen with the aid of finely divided silica, and humic acid or like substance, as emulsifying agents, or may be prepared with one of these agents and re-emulsified with the other agent.ALSO:Bituminous compositions are prepared by mixing with finely divided siliceous earth such as kieselguhr, or with a finely divided mixture of such earth and asphalt, a bituminous emulsion prepared with humic acid or similar substances as described in Specification 317,496, [Class 22, Cements &c.].  Examples:-(1) A bituminous emulsion containing 50 per cent petroleum asphalt or coal-tar pitch and prepared with humic acid is mixed with 6 per cent of kieselguhr, 20 per cent siliceous earth, or 2 per cent of a mixture of siliceous earth and asphalt, to produce filling masses applicable with a palette-knife.  (2) A bitumen dispersion prepared with acid, brown, alkali-soluble, high-molecular constituents of beech-wood tar is mixed with 6 per cent of kieselguhr to form a product which can be applied with a palette-knife to fill joints or to cover stone surfaces. Specification 367,782 is referred to.  The Provisional Specification states that the bituminous composition may be prepared by emulsifying the bitumen with the aid of finely divided silica, and humic acid or like substance, as emulsifying agents, or may be prepared with one of these agents and re-emulsified with the other agent.
Patent GB-843554-A (GB)
Title: Improvements in or relating to devices for lifting marine vessels
IPC: B63B9/00
Filed: 1957-05-16
Abstract: 843,554. Lifting marine vessels. WARNOWWERFT WARNEMUNDE VEB. May 16, 1957, No. 15566/57. Class 68(2) In a device for lifting a ship or the like on a platform 4, Fig. 2, to the level of a building slip by means of hydraulic lifts provided on the longitudinal sides of the platform, lifting parts, which in their bottom position reach to the level of the building slip, consist of pistons 9 carrying cross members 10 on which are disposed tie rods 7 which grip underneath the platform and the platform can be locked at the level of the building slip after having been lifted as by jacks 3 on a foundation bearing 1 engaging in recesses 5 in the platform. After the lifting operation, the parts projecting above the building slip can be lowered so that the upper part of the cross member 10 forms part of the building slip, connecting this to a runway on the platform 4, Fig. 7, on which the dolly supporting the ship runs. Cables 12 may be used to move the dolly or as an anchor in high winds.
Patent GB-102609-A (GB)
Title: Improvements in Reinforced Flexible Transparent Medium.
Inventor: HENRY ELLSWORTH BUTTS
IPC: B29C70/22
Filed: 1916-11-01
Abstract: 102,609. Butts, H. E. Dec. 6, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Ornamental plates, sheets, and surfaces.- Celluloid and like sheets, suitable for the windows of vehicle tops and other like purposes, are reinforced with intersecting strands B of fibrous material, which may be incorporated within the body of a sheet or cemented between two celluloid sheets.
Patent GB-1378411-A (GB)
Title: Holding devices for poultry
IPC: A22C21/06
Filed: 1973-06-27
Abstract: 1378411 Conveying and eviscerating poultry COPE WHELON & CO Ltd 27 June 1973 [5 April 1972] 15693/72 Heading A2U A carrier for mounting poultry on a conveyor comprises (a) means for holding the bird on the carrier and (b) means for mounting the carrier on a conveyor such that movement of the bird independently of the conveyor is substantially prevented. In one embodiment, Fig. 1, the bird is clamped on stainless steel plate 1 by clamps 2 and 3. In Fig. 2, number of carriers 1, according to the invention are mounted on conveyor 5 and conveyed past a neck-slitting tool 7, a vent-cutting tool 9 for automatically cutting out an orifice adjacent the vent of the bird, a vent-slitting tool 14 and an eviscerating station 16.
Patent GB-1490056-A (GB)
Title: Desulphurizing iron melts
IPC: C21C7/064
Filed: 1976-04-15
Abstract: 1490056 Desulphurizing process ACIERIES REUNIES DE BURBACH EICH DUDELANGE SA 15 April 1976 [18 April 1975] 15703/76 Heading C7D A process for desulphurizing iron and/or steel or ferro alloys wherein a desulphurizing agent comprising finely divided calcium formate is introduced beneath the melt surface. The calcium formate may be mixed with other desulphurizers or slag-consistency controlling additives and briquetted, or may be blown into the melt through a lance using a carrier gas e.g. air, nitrogen argon, a hydrocarbon, or mixtures thereof. The calcium formate may be the by-product of the synthesis of pentaerythritol.
Patent GB-1328948-A (GB)
Title: Pressure limiting valves
IPC: B60T15/36
Filed: 1972-04-05
Abstract: 1328948 Valves ROBERT BOSCH GmbH 5 April 1972 [8 April 1971] 15765/72 Addition to 1278305 Heading F2V In a pressure limiting valve of the type described in Specification 1,278,305, the ring 15 which is formed with the valve seat 17, has on its outer periphery a flexible sealing lip 31 that acts as a check valve to permit flow from the outlet to the inlet of the valve via axial passages 32 in the ring and radial passages 33 in the valve body.
Patent GB-384569-A (GB)
Title: Improvement in or relating to mixers for beverages and the like
IPC: A47J43/044
Filed: 1932-06-04
Abstract: 384,569. Signs. HORLICK, O. P., of Horlick's Malted Milk Co., Stoke Poges Lane, Slough, Buckinghamshire. June 4, 1932, No. 15788. [Classes 3 (i) and 3 (ii).] An electric mixer of liquids is combined with an electrically illuminated box sign which may be permanently or intermittently lit, or which may be lit only when the mixing motor is in operation. Fig. 1 shows a sign 1 carried by two legs 5, 6 to which is secured a clamping band 9, 9d which grips the motor 7 driving the mixer 8. Contact balls 21, 22 and strips 12, 13 put the sign lamp in circuit with the motor. The band 9, 9d may be replaced by a permanent connection between the sign 1 and motor 7. Fig. 7 shows a modification in which the sign 1 is mounted on a hollow part 25 of a pedestal 24 carrying the motor 7 in brackets 26.
Patent GB-529341-A (GB)
Title: Braun tube
Inventor: SCHLESINGER KURT
IPC: H01J29/84
Filed: 1939-05-30
Abstract: 529,341. Cathode-ray tubes. RADIOAKT.- GES. D. S. LOEWE. May 30, 1939, No. 15885. Convention date, May 31, 1938. [Class 39 (i)] In order to prevent injury by ions to the screen of a Braun tube in which the ray is deflected in one plane electrostatically and in the other electromagnetically the ray is deflected by plates between the anode and the ordinary deflection plates to a point at the edge of the screen and returned to its normal position by electromagnetic deflection. In the arrangement shown the plates 8, 9 deflect the ray towards the point P on the screen and it is returned to the point Q by a constant current applied to the ordinary deflecting coils. The plates 8, 9 may be given potentials symmetrical with that of the anode 1 by means of batteries 10, 11, or one of them may be connected to the cathode and one to a diaphragm of low potential.
Patent GB-494501-A (GB)
Title: Multi-unit dry rectifiers
IPC: H01L25/07
Filed: 1938-05-27
Abstract: 494,501. Asymmetrically-conducting resistances. LORENZ AKT.-GES., C. May 27, 1938, No. 15934. Convention date, May 29, 1937. [Class 37] Spacers 6, for insertion between the units 2 of dry contact rectifiers, are made of metal faced with insulating-material 6<1>, for example of aluminium oxidized on both sides. The spacers may have annular grooves to increase the leakage path.