baber/WOPTO huggingface dataset:
Patent GB-392606-A (GB)
Title: Improvements in spraying devices
IPC: B05B11/06
Filed: 1931-11-18
Abstract: 392,606. Spray-producers. AMERY, A. H., Rest Harrow, Benty Heath Lane, Willaston Wirral, Cheshire. Nov. 18, 1931, No. 31944. [Class 69 (iii).] In devices for spraying insecticide of the kind comprising a liquid container having a supply pipe opening under the nozzle of an air pump, the nozzle of the air pump is at rightangles to the barrel and the liquid supply pipe is adapted to enable the device to be used in any position. As shown in the Figure, the pipe E delivering air from the pump B passes round a quadrant of the container A, and the liquid supply pipe F has an inlet substantially at the centre of the container so that with a minimum amount of liquid in the container the spray can be directed in any direction by rotating the device about the pump barrel. Alternatively the liquid supply pipe may be flexible and weighted at the free end.
Patent GB-1068706-A (GB)
Title: Improvements in or relating to load change-over switches for variable transformers
IPC: H01F29/04
Filed: 1965-07-27
Abstract: 1,068,706. Transformers. E. SCHEUBECK. July 27, 1965 [July 28, 1964], No. 31988/65. Heading H1T. Apparatus for load change-over switches for tap switches in variable transformers T comprises main switching sections 11 and 14 each having a plurality of series-connected switches 21, 31, 41, 51 . . . and 24, 34, 44, 54 . . . respectively, and auxiliary switching sections 12, 13 each having a switch-over resistance 32, 33 and a switch 22, 23, said resistances 32, 33 each being divided by tappings into equal parts with equal resistance values corresponding to the number of switches 21, 31 . . . and 24, 34 . . . respectively, said tappings being electrically connected to the connecting leads of the switches 21, 31 . . . and 24, 34 . . . Initially, switches 21, 31 . . . are closed, all other switches being open, and to change over from tap A to tap B, switch 22 is closed and switches 21, 31 . . . opened, switch 23 is then closed, switch 22 is next opened, then switches 24, 34 . . . are closed, and finally switch 23 is opened.
Patent GB-1111143-A (GB)
Title: Cyclic polymethylene (substituted or unsubstituted) monothiolcarbonates and hydrocarbl mercaptoalkyl (substituted or unsubstituted) carbonates
IPC: C07D327/04
Filed: 1965-07-28
Abstract: Cyclic polymethylene monothiolcarbonates and/or hydrocarbyl mercaptoalkyl carbonates, either of which may be substituted, are prepared by reacting at least one carbonate diester with at least one mercaptoalkanol having at least two carbons between the SH and OH groups, in the presence of a thorium salt. Hydroxymethylethylene monothiolcarbonate, trimethylene monothiolcarbonate and tetramethylene monothiolcarbonate are claimed per se.  Examples also prepare ethylene monothiolcarbonate and ethyl 2-mercaptoethyl carbonate.  Hydroxymethylethylene sulphide, thietan and tetrahydrothiophen are obtainable by heating the above compounds claime per se to their decomposition temperatures.
Patent GB-446478-A (GB)
Title: Improvements in and relating to cathodes for electric discharge devices
IPC: H01J1/28
Filed: 1935-11-20
Abstract: 446,478. Thermionic cathodes. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Nov. 20, 1935, No. 32182. Convention date, Nov. 20, 1934. [Class 39 (i)] A cathode for use in valves, gas-filled lamps or rectifiers comprises a mass of barium oxide 51 wholly enclosed in a cover consisting of metal washers or helically-wound ribbon 48 held together by rods 49 and refractory end plates 50 ; the oxide forms an emitting film on the cover by migration through the crevices between the washers &c. The oxide may be granular or a compact mass, and nickel or tungsten may be mixed therewith to reduce the oxide during the life of the cathode. A heat shield consisting of an open-ended cylinder with slits in its wall may be used. The filling may be argon, neon, mercury sodium or caesium or a mixture of these materials at a pressure of one micron upwards. Speci- , fication 395,794 is referred to.
Patent GB-413688-A (GB)
Title: Process for the production of a coloured sound film
Filed: 1932-11-14
Abstract: 413,688. Producing photographic sound-records in colour; combined sound and picture films. GASPAR, B., 38, Innsbrucker Strasse, Schoneberg, Berlin. Nov. 14, 1932, No. 32191. Convention date, Nov. 19, 1931. [Class 40 (ii).] A sound-record in the form of a dyestuff image is produced on a film by forming a metal deposit image in single or multi-layer photographic material which is diffusely coloured either before or after the formation of the metal image, and subsequently destroying the dyestuff either at the image or non-image portions in a manner dependent upon the density of the metal deposit. The production of the dye image may be effected by known processes, preferably those described in Specifications 395,718, 397,159, 397,188, and 397,192, [all in Group XX]. Steps are preferably taken to prevent diffusion of the dyestuff images, e.g. by fixing them in the layer by formation of mordants or lakes, by using an acid or substantive dyestuff which is selectively destroyed in an acid medium, or by using a basic dyestuff which is selectively destroyed in a neutral or alkaline medium. The destruction of the dyestuff may, in some cases, be effected by means of coupled reactions, or by converting the metal deposit image into a mordant or tanning it, and then causing a dyestuff-destroying agent to act on it. For producing a combined coloured sound and picture film, the emulsion of the film may consist of a number of superimposed layers, differently coloured and sensitized, and the sound record which may be in the form of several component images may extend over one or more layers, and may be in any desired colour. The colours may be specially adapted to the colour-sensitivity of the photo-electric cell used in reproduction, or a mixture of complementary colours which produce the effect of black may be used. In the case of variable density sound records, it is preferred that the sound track is restricted to a single layer and colour, and for this purpose the dyestuffs in the other layers of a multi-layer film are destroyed at the sound-track portion after diffuse exposure to appropriately coloured light. By control of the exposure, time of development, concentration of coloration, or by the duration of action of the dyestuff destroying agent, the characteristic curve of the sound record image may be given any desired shape requisite for distortionless reproduction. Specifications 408,991 and 415,040, [both in Group XX], also are referred to. The Specification as open to inspection under Sect. 91, describes also a method of testing or measuring the photographic characteristic of a print, wherein " either a wedge or a degree scale is copied and is compared with the copy matter in light that is complementary to the colour of the sound strip ; or comparison may be effected not with the eye but with a photo-cell intended for the sound reproduction." This subjectmatter does not appear in the Specification as accepted.
Patent GB-322610-A (GB)
Title: Improvements relating to recording apparatus for measuring instruments
IPC: G01K1/02
Filed: 1928-11-05
Abstract: 322,610. Siemens Bros. & Co., Ltd., Turner, F., and Hadlow, H. J. Nov. 5, 1928. Recording by co-ordinates. - To record the readings of a plurality of measuring instruments a single recording apparatus comprising a recordstrip divided into individual sections or bands co-operates with the marking element of an indicating instrument movable transversely across the record-strip and adapted to be coupled successively to the different measuring instruments. The marking action is effected intermittently by a chopper bar operated by a notched bar arranged across the record-strip. As shown in Figs. 1, 2, and 3, applied for the purpose of recording the temperature measured by electrical distant thermometers or pyrometers an indicating instrument 1 of the voltmeter type is mounted on a carriage 2 supported by rollers 3 on rails 4 of a framework 5. The carriage has a projection 18 engaging a spiral groove 17 in a cylinder 16 rotated by reduction gearing 14, 15 from an electric motor 13. A pin 19 on one of the gear wheels 15b operates a lever 20 which, through a projection 23 on a rod 21 supported by springs 22, 22<a> and carrying a pawl 24, actuates a ratchet wheel 25 on a feed roller 10 around which passes the record-strip from a supply roll 8 to a receiving roll 9. The roll 9 is rotated by the frictional engagement therewith of a pad 26 carried by the rod 21. The needle 12 of the voltmeter carries a stylus 11 and a pointer that co-operates with a scale 38 on a bracket 39a of the carriage 2. The stylus is pressed on to the record-strip by a U-shaped chopper bar 30 operated by a notched or toothed bar 29 arranged across the apparatus, a pivoted member 31 on the chopper bar riding along the teeth until it drops off the incline. The chopper bar is held clear of the needle by means of a spring 40, Fig. 4, its position being adjusted by means of a set-screw as shown. The shaft of the cylinder carries a cam contact 34 which, by its rotation, closes in succession the circuits through the contacts 35, Fig. 4, associated with the various distant instruments. At the end of the travel when the projection 18 on the carriage enters the straight part of the groove 17 the carriage is returned to its left hand position by a spring in a drum 32 connected by a band 33 to the carriage the pivoted member 31, during this movement, riding over the teeth of the bar 29. In instances where the current for the operation is supplied by a small battery a record of the battery voltage may also be recorded preferably at the left hand section.
Patent GB-300801-A (GB)
Title: Improvements in automatic drilling machines
IPC: B23Q5/02
Filed: 1927-11-30
Abstract: 300,801. Armstrong, J. J. V., (Kingsbury, E. J.). Nov. 30, 1927. Drilling-machines. - In a drilling-machine having a yielding feed, the spindle-sleeve is fed by gearing including a worm drive, the worm of which is axially movable and rotated through a friction clutch, so that when the drill encounters resistance the rotation of the worm-wheel will be impeded and the worm will screw itself along axially to relieve the friction clutch. A stopmotion is also provided, in which the wormwheel is positively prevented from rotating and the friction clutch becomes completely disengaged. The drill-spindle 3, Fig. 2, is slidably keyed within a sleeve 4 rotated through gearing 7 from a motor, and is rotatable within a sleeve 9 adapted to be fed axially by a pinion 13, the journal and thrust ball bearings 10, 11 being provided in the sleeve. The pinion 13 is rotated alternately in opposite directions by a co-axial pinion 15, Fig. 7, engaged bv a toothed segment 17 oscillated about a pivot 18 by a roller 19 thereon and a cam groove 20 in a disc 21 keyed to a shaft 22, Fig. 6, which is driven by a wormwheel 23. The worm 24 is rotated from the spindle-sleeve 4 by gearing 31 and a friction clutch 29, 30, the action being such that when rotation of the worm-wheel 23 is impeded owing to the drill encountering resistance, the worm will overcome an adjustable spring 34 and screw itself along axially to separate the parts of the clutch, the feed being restored by the spring 34 when the resistance is removed. To stop the reciprocation of the drill-spindle at any predetermined point (preferably in its rearmost position) a lever 41 Fig. 7, is moved to bring a projection 42a thereon into the path of a stop 40 on the cam disc 21 and thus cause the friction clutch to be opened. The lever 41, pivoted at 18, is normally pressed upwardly by a spring 42, but may be depressed to cause the spindle to be fed by means of a hand lever 43 pivoted at 44 and carrying a link 45. The hand lever is normally pressed upwards by a spring 46, and an adjustable stop 44a serves to position the projection 42<a> correctly. The pinion 15 is angularly adjustable on its shaft by means of a conicallyshaped coupling and a nut on the end of the shaft.
Patent GB-691362-A (GB)
Title: Improvements in self-priming pumps
IPC: F04D9/02
Filed: 1949-12-15
Abstract: 691,362. Centrifugal pumps. MARLOW PUMPS. Dec. 15, 1949 [Nov. 3, 1949], No. 32274/49. Class 110(i) In a self-priming centrifugal pump, the pump housing includes a reservoir through which the pump discharge passes on its way to the discharge outlet, and the diffuser. which is intermediate the impeller and the reservoir, contains a series of continuous repetitive groups of flow passages of unequal size. To facilitate priming, the disturbing effect of counterflow from the diffuser passages 20 towards the impeller 11 is increased by making every alternate passage 20 about twice the width of the other passages 20, and providing alternate diffuser vanes 24 with a larger clearance from the impeller periphery than the remaining vanes 24: At least one priming hole 20<SP>1</SP> communicating with a liquid reservoir 10 is provided in each larger diffuser passage and, it may be, in each smaller diffuser passage also. Check valves 16 and 22 are provided in the suction and discharge respectively. The diffuser passages may be arranged in repetitive groups of three or more passages instead of groups of two as shown. There may be a float-operated ventilating air separator in series with the pump. The Specification as open to inspection under Sect. 91, comprises also the statement that the liquid reservoir may be separate from the pump housing. This subject-matter does not appear in the Specification as accepted.
Patent GB-600393-A (GB)
Title: Improvements in or relating to the frame construction of high-speed boats
IPC: B63B3/00
Filed: 1945-11-29
Abstract: 600,393. Framing systems. BRISTOL AEROPLANE CO., Ltd., and COOPER, F. Nov. 29, 1945, No. 32318. [Class 113 (ii)] In a boat construction, as shown in Fig. 5, transverse frame members 11 are threaded through slots 19 in wooden longitudinal frame members 10 and are secured in position by screws and/or adhesive means. The frame members 10 and 11 comprise a pair of spaced wooden flange members 14, 15 and 20, 21 respectively with plywood sheeting 18 and 22 secured to the flanges. The sections of transverse frame members 11 are butt or scarf jointed together as shown at 24 and 23 in Fig. 1, each butt joint having a grooved wooden butt strap lying between and attached to the sheetings. Specification 600,392 is referred to.
Patent GB-789005-A (GB)
Title: Improvements in and relating to electrolytic devices
IPC: H01G9/04
Filed: 1954-11-09
Abstract: The electrode of the parent Specification invention is modified (a) by having the porous metal coats not substantially overlapping the base strip and/or (b) by having the base strip composed of two separate layers so that the splitting of the coated strip can be effected more easily.  The layers of the strip may be of paper, gauze, parallel yarns or fibres or combinations of two of these.
Patent GB-848450-A (GB)
Title: Device for forming a pad-like pile of sheets of different sizes
IPC: B65H31/40
Filed: 1956-10-24
Abstract: 848,450. Bookbinding; filing papers. HESSELMANN, W. Oct. 24, 1956 [Oct. 25, 1955; April 27, 1956; May 12, 1956], No. 32418/56. Classes 16 and 146(1). [Also in Group XVII] A device for bringing sheets of paper 6 of different size into a position in which the edges of the paper along at least one edge lie flush, comprises a container 1 open along at least two sides, formed with slots 5 or 5<SP>1</SP> at opposite lateral sides of the container so that the sheets may be brought together with their edges flush along at least one side 3 or 4 and can be removed by hand through the slot 5 or one of the slots 51. The slots are of such depth that the smallest sheets 6<SP>1</SP> can be gripped. The containers 1 are adapted to rest on a shaking device 9 to assist in bringing the sheets with edges flush. A number of different shaped slots are shown.
Patent GB-1169140-A (GB)
Title: Improvements in or relating to Apparatus for Electro-Chemical Analysis
Inventor: CLARK LELAND C JR
IPC: G01N33/487
Filed: 1966-10-06
Abstract: 1,169,140. Electro-chemical analysis. L.C. CLARK. Oct.6, 1966 [Oct. 8, 1965], No. 32470/69. Divided out of 1,167,317. Heading G1N. To determine nitrous oxide in the presence of oxygen (e.g. in anesthesiology) voltage selectivity is used with a cell having a cathode of palladium, gold, platinum or pyrolytic graphite. For example oxygen alone gives rise to a current at 0À3v with a palladium cathode or 0À6v with a gold cathode.
Patent GB-1434587-A (GB)
Title: Cyanophenoxy-acetonitriles
IPC: C07C255/13
Filed: 1973-07-09
Abstract: 1434587 Substituted cyanophenoxy acetonitriles SCHERING AG 9 July 1973 [13 July 1972] 32518/73 Heading C2C [Also in Division A5] The invention comprises cyanophenoxy acetonitriles of the general formula in which X 1  and X 2  each represent a halogen atom, which may be prepared by reacting the corresponding phenol compound of the general formula or an alkali metal salt thereof in the presence of an organic solvent with a compound of the general formula Compounds claimed per se are 2-chloro-6-iodo- 4 - cyanophenoxy - acetonitrile; 2 - chloro - 6- bromo - 4 - cyanophenoxy - acetonitrile, 2- bromo - 6 - iodo - 4 - cyano - phenoxy - acetonitrile, 2,6 - diiodo - 4 - cyanophenoxy - acetonitrile, 2,6 - dibromo - 4 - cyanophenoxyacetonitrile and 2,6 - dichloro - 4 - cyanophenoxy acetonitrile. They are useful as herbicides.
Patent GB-205378-A (GB)
Title: Improvements relating to the valve gear and fuel pumps of internal combustion engines
IPC: F02D1/02
Filed: 1922-11-28
Abstract: 205,378. Wennerby, A. O. L. Nov. 28, 1922. Cam-actuated pumps ; lever-actuated pumps ; rack-and-pinion actuated pumps.-The fuel pumps 18, 19 of an internal-combustion engine are actuated by cams mounted on shafts 10, 11 which -are oscillated by the engagement of pinions 12, 13 with a rack 14 connected to the piston 4 of the airpump. The return stroke of the pumps 18, 19 is effected by springs as shown. The rack teeth 14 may be replaced by abutments or cam members arranged to oscillate the cam-shafts 10, 11. Specification 190,037, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], is referred to.
Patent GB-536304-A (GB)
Title: Improvements in a.r.p. street-lighting fittings
IPC: F21V11/00
Filed: 1939-12-20
Abstract: 536,304. Street lighting fittings. GENERAL ELECTRIC CO., Ltd., DEBENHAM, W. F. S. and SMYTH, J. B. S. Dec. 20, 1939, No. 32611. [Classes 75 (ii) and 75 (iv)] An A.R.P. street lighting fitting comprises a light source 1. Fig. la, surrounded by an opaque casing 2 coated internally with a white vitreous enamel or other diffusing light-coloured material, the casing 2 having a skirt 5 below its base 4 and being fitted with a screen 6, Fig. 1b. having a serrated edge. The intensity of the light issuing from a hole 3 in the base 4 is a maximum in directions between the lines P, Q, but the diffusing surface also diffuses light passing through the sawcuts 7 in the direction Q<SP>1</SP>. The lower surface of the plate 6 is non-reflecting except for a central white patch 8. In another construction shown in Fig. 2a an opal cylinder 9 forming a light-diffusing surface is suspended below the hole 3 in the base of the casing 2 and its upper part is surrounded by a screening cylinder 11. Fig. 2b formed with sawcuts 16. A plate 10 below the cylinder 9 allows the emission of light through a gap 12 below the skirt 5 and may be formed with a central hole 14 covered with an opal sheet 15 for illumination of the surface directly below the light source 1. A short opaque cylinder 13 surrounds the lower surface of the cylinder 9. The sawcuts 7. 16 may be V-shaped and holes may be provided in the screens 6, 11.
Patent GB-431372-A (GB)
Title: Improvements in or relating to receptacles having bodies of paper or similar frangible material
IPC: B65D3/10
Filed: 1934-11-13
Abstract: 431,372. Cartons &c. GEE, L. F., Moor Lodge, Moor Lane, Crosby, Lancashire, and BATCHELOR, G. H. R., 57, Gracechurch Street, London. Nov. 13, 1934, No. 32638. [Class 66] A rupturable cupshaped paper, tagger tin or like closure b provided with a turned - over flange or skirt b<1>, b<2>, is secured to the plain end of a receptacle of paper or similar frangible material by means of a metal bonding annulus, compressed thereover as shown in Fig. 4, or in the manner shown in Fig. 8, in which construction a fold c<3> of the annulus is disposed between the skirt b<2> and the wall of the receptacle. The annulus is formed from a strip the ends of which are abutted, overlapped or dovetailed together.
Patent GB-789258-A (GB)
Title: Refining of molten ferrous metal containing carbon
IPC: C21C5/32
Filed: 1955-11-16
Abstract: A method of refining pig iron in a rotatable furnace by blowing with a gas containing at least 40 per cent oxygen comprises blowing the metal with the axis of rotation of the furnace inclined at an angle of more than 45 degrees from the vertical during one part of the process and during another part of the process with the axis of rotation vertical.  When the furnace is in the inclined position the oxygen is supplied through an opening at one end and when the furnace is vertical the oxygen is supplied through a tuyere from above on to the surface of the metal.  The early part of the conversion, i.e. the oxidation of manganese and silicon, may be performed with the furnace (which may be a drum furnace closed at one end and having an opening at the other for the supply of oxygen, the furnace being mounted on trunnions and rotatable about the centre line passing through the opening and the closed end) lying in the horizontal position and rotating at 30-40 r.p.m.  When the carbon boil commences the furnace may be brought to the vertical and maintained steady or rotated slowly while oxygen is blown on to the surface of the metal through a tuyere passing through the opening.  The dephosphorization may be carried out with the furnace in the horizontal position.  Pig iron containing more than 1 per cent silicon and more than 0.5 per cent phosphorus may be treated. Specification 677,349 is referred to.
Patent GB-1074444-A (GB)
Title: Valve control system
IPC: F01L1/30
Filed: 1965-07-31
Abstract: 1,074,444. I. C. engine valve gear. L. ZANINI. July 31, 1965, No.32879/65. Heading F1B. In valve gear having intake and exhaust valve stems coupled respectively to operating levers 5a, 5b, two cam-shaft-driven transfer levers 12, 13 are in driving connection by means of pins 11 with each operating lever so that one transfer lever opens the valve and the other transfer lever closes the valve. In a modification the operating levers have bifurcated ends. The operating levers are mounted on a common shaft 4 received in bearing blocks 3 which are biased against adjustable stops 19 by springs 17.