baber/WOPTO huggingface dataset:
Patent GB-1385227-A (GB)
Title: Electronic control devices
IPC: H03K17/00
Filed: 1972-03-28
Abstract: 1385227 Semi-conductor devices ENERGY CONVERSION DEVICES Inc 28 March 1972 [30 April 1971 27 Sept 1971] 11662/72 Heading H1K A device comprising a semi-conductor body of material which is amorphous in a certain state of operation of the device disposed between a pair of primary electrodes, and an electronemitting electrode separated from one of the primary electrodes by an insulating layer, the arrangement being such that with a suitable energizing voltage across the layer electrons flow from the emitting electrode through the insulating layer into the semi-conductor. The insulating layer may be of alumina from 70- 250 A thick, the hot electrons passing from the alumina into the amorphous material directly via a hole in the electrode or through the thickness of the electrode, which is typically 70- 250  when using molybdenum. The amorphous material may be one of the threshold or memory materials described in Specifications 1,070,411 and 1,070,412 or a material such as arsenic trisulphide or triselenide exhibiting neither of these properties. The controlling effect of the hot electrons may be enhanced by constructing the pair of electrodes so as to block entry of normal electrons and holes as by forming oxide at their interfaces with the amorphous material. A matrix of devices may be formed with the X and Y conductors constituting the two electrodes of the electron injectors. Where the amorphous material is of threshold or memory type the device exhibits a switching characteristic between the pair of electrodes, the voltage at which switching from the high to low resistance states occurs being varied by the hot electron current injection, as is the I-V characteristic in the high resistance condition. In the threshold device the holding current required is also varied.
Patent GB-998013-A (GB)
Title: Improvements in or relating to pit shaft conveyance latching means
Inventor: WORRALL ROBERT WILLIAM
IPC: B66B5/20
Filed: 1963-03-25
Abstract: 998,013. Sustaining mine cages on overwind. RELIANCE ROPE ATTACHMENT CO. Ltd. April 28, 1964 [March 25, 1963], No. 11670/63. Heading B8B. In the event of overwind of a mine cage which is connected to the winding rope by a coupling device as described in Specification 892,108, the sleeve 1 of the coupling device which is secured to the mine cage is supported, on detachment from the part connected to the winding rope, by latch members 5, 6 which are slidably mounted on rods 3, 4 supported on a plate P secured to the superstructure. The latch members 5, 6 are urged towards each other by springs 7 and have chamfered lower faces 10. In operation, the sleeve 1 passes through an aperture in the plate P and between the latch members which are forced apart against the action of the springs 7. When the winding rope is detached the cage and sleeve 1 fall back until the sleeve engages and is supported by the latch members 5, 6. The latch members are forced apart to release the sleeve 1 by rotating cams 9, which are mounted on sleeves 8 on the rods 3, 4, by means of nuts 14.
Patent GB-1469215-A (GB)
Title: Device for remote testing and inspection of a structure particularly a nuclear reactor
IPC: G21C17/013
Filed: 1975-03-20
Abstract: 1469215 Endless-track vehicles COMMISSARIAT A L'ENERGIE ATOMIQUE 20 March 1975 [10 April 1974] 11672/75 Heading B7H [Also in Division G6] A test carriage for inspecting the welded seams in the walls of the primary vessel 1 and the containment vessel 2 of a nuclear reactor, and displaceable in the interspace between these vessels 1, 2, comprises a chassis 23 and two endless tracks 24, each driven independently of the other with respect to the chassis 23 by means of front and rear sprocket wheels 25, 26. Each track 24 comprises a series of articulated elements 27 provided with rollers 28 which engage the teeth of the sprocket wheels 25, 26. Permanent magnets 29 carried by the elements 27 produce magnetic attraction of the carriage 13 by the wall of the containment vessel 2 which is formed of black steel whereas the stainless steel primary vessel 1 is non- magnetic. The chassis 23 supports a double deformable parallelogram 30 provided on each side of the chassis 23 with two link-arms 31, 32 pivotally attached to the chassis 23 at 33, 34 while at their opposite ends a supporting member 35 is pivotally attached. Pivotal motion of the deformable parallelograms is effected by means of a pneumatic or hydraulic jack 36. Supporting member 35 carries an orientable TV camera 39 and an ultrasonic testing apparatus 41. The chassis 23 is extended towards the rear by a connecting plate 44 terminating in an end-piece 45 for guiding and fastening the extremity of a suspension cable 14. A series of jacks 46 is carried by the chassis 23 at right angles to the wall of the containment vessel 2 to enable the carriage 13 to be detached from the wall of the vessel 2 if so required, the carriage 13 then being freely suspended from the cable 14. This would be the procedure prior to the withdrawal of the carriage from the interspace between the vessels 1, 2. At the front of the chassis 23, a bumper 48 ensures protection of the TV camera 39. Wire brushes 49 carried by the chassis 23 on each side of the endless tracks 24 clean the wall of the vessel 2 continuously in front of and behind the carriage 13.
Patent GB-403729-A (GB)
Title: Improvements in apparatus for producing metal binding strips for boxes, crates or the like
IPC: B21D53/36
Filed: 1932-06-30
Abstract: 403,729. Spiked binding-strips. NONAIL CASES PROPRIETARY, Ltd., 39, New Broad Street, London.-(Bohm & Kruse Maschinenfabrik; Hemelingen, near Bremen, Germany.) June 30, 1932, No. 11758/33. Divided on 403,722. [Class 89 (ii).] Binding - strips Fig. 11 for crates &c., are made with teeth 172.
Patent GB-615522-A (GB)
Title: Improvements in acylations with enol esters
IPC: C07C69/145
Filed: 1945-05-11
Abstract: 1-Acyloxy-1.3-dienes are made by acylating an unsaturated aldehyde, in presence of an esterification catalyst, with an aliphatic carboxylic acid ester, derived from an acid containing 2-8 carbon atoms, of the enol form of a ketone, which ketone contains 3-9 carbon atoms.  The aldehyde has an aliphatic chain of 3-7 carbon atoms attached to the carbonyl group and a hydrogen atom attached to an aliphatic carbon atom, either adjacent to the carbonyl group or joined to it by at least one pair of olefinically linked carbon atoms.  The enol esters may be derived from the following acids: acetic, propionic, butyric, pentanoic, hexanoic, heptanoic, octanoic, acrylic, crotonic, angelic, pentenoic, or hexenoic.  The mixture of starting materials may be reacted at 0-275 DEG  C., preferably 50-200 DEG  C., in liquid or vapour phase, and at atmospheric or higher or lower pressures.  If the ketone is of lower boiling point than the aldehyde, it may be removed as formed.  Catalysts specified are phosphoric, sulphuric and toluene sulphonic acids.  The catalyst is preferably neutralized before purification of the product.  Examples describe (1) the preparation of 1-acetoxybutadiene-1.3 from isopropenyl acetate and crotonaldehyde using sulphuric, phosphoric and p-toluene sulphonic acids each as catalysts; (2) the preparation of 1-acetoxy-2-ethyl butadiene-1.3 from 2-ethylcrotonaldehyde and isopropenyl acetate or 2-acetoxybutene in presence of sulphuric acid. Isopropenyl butyrate and isopropenyl sorbate are obtained by reacting isopropenyl acetate with butyric or sorbic anhydrides respectively, in presence of sulphuric acid.  The Specification as open to inspection under Sect. 91 has an example of the reaction of 2-ethylhexaldehyde with isopropenyl acetate in presence of sulphuric acid, and other saturated aldehydes referred to are pentaldehyde, hexaldehyde, heptaldehyde, octaldehyde, non-aldehyde, decaldehyde, lauric, palmitic and stearic aldehydes.  This subject-matter does not appear in the Specification as accepted.
Patent GB-353055-A (GB)
Title: Process of refining hydrocarbon oils
IPC: C10G29/06
Filed: 1930-04-15
Abstract: <PICT:0353055/III/1> Gasolene, lamp oils, and lubricating or other mineral or shale oils are refined by contacting the vapour with a hot aqueous solution of salts of zinc, cadmium, or mercury, or mixtures thereof which may contain 0,5-3,0 per cent of oxide or hydroxide in solution or suspension.  Chlorides, bromides, iodides, sulphates, nitrates, and sulphonates of benzol, toluol, xylol, and petroleum are specified.  Washing with a solution of sodium or potassium hydroxide or carbonate or calcium hydroxide may follow.  The oil may first be purified by sulphuric acid or other known agent, or afterwards caustic alkali and sulphuric acid.  For example, vapours of cracked or straight gasolene from a fractionating tower are passed by a pipe 2 into a tower B filled with firebrick, spiral tile, or other resistant material 3 over which flows a 50-85 per cent solution of the salt or salts from a tank 12.  The vapour passes to a condenser 11, the solution to a discharge pipe 7.  The vapours and solution are maintained at 300-400 DEG  F. in the tower B, and steam or water is continuously or intermittently supplied by a pipe 8 to maintain the fluidity of the solution.  In place of the above apparatus centrifugal or other mixers or bubble-cap or other contact towers may be used.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the use of salts of copper, iron, chromium, manganese, aluminium, nickel, or cobalt, with or without their oxides or hydroxides.  This subject-matter does not appear in the Specification as accepted.
Patent GB-415528-A (GB)
Title: Improvements in or relating to fluid pressure gauges
IPC: G01L19/14
Filed: 1933-04-25
Abstract: 415,528. Bourdon pressure gauges. GRIGIONI, G., 41, Mersey Street, Canning Place, Liverpool. April 25, 1933, No. 12026. [Class 106 (ii).] The sealed free end of the tube c is fitted with an extension d<1> adapted to project into the plane of and adapted to engage and disengage from a projection h on the pointer carrying element so that when the tube returns to zero the pointer f remains at the reading attained. The pointer spindle e passes through the casing and is provided with a finger gripping member e<1> outside the casing whereby it may be returned to zero.
Patent GB-527865-A (GB)
Title: Improvements in alloys
IPC: B23K35/30
Filed: 1939-04-21
Abstract: 527,865. Alloys. HANDY & HARMAN. April 21, 1939, No. 12094. Convention date, April 23,1938. [Class 82 (i)] An alloy particularly for use as a solder for stainless steels comprises 40-60 per cent of silver, 5-15 per cent. of manganese, 10-30 per cent. of zinc, 2-7.5 per cent. of nickel, and 0.15-0.4 per cent. of silicon, with or without up to 15 per cent. of copper. In making the alloy, the silicon may be added in the form of 20 per cent. siliconcopper.
Patent GB-1036619-A (GB)
Title: "process and apparatus for treatment of solutions by bodies of granular substances which may be regenerated"
IPC: C13B20/14
Filed: 1964-03-23
Abstract: An ion-exchange apparatus of the type described in Specification 1,019,037 has a timing device and means to move the ion-exchange containers it a rate such as to prevent simultaneous feeding of two containers through a single conduit.
Patent GB-214095-A (GB)
Title: Improvements in, or relating to, lining shafts, wells and the like
IPC: E21D5/012
Filed: 1923-05-05
Abstract: 214,095. Walker, F. E., and Mckenzie, K.. S. May 5, 1923. Wells and shafts. - Shafts, wells, and the like are lined from above downwards by suspending blocks b as by bolts d so as to leave gaps at intervals, packing rubble &c. e behind the newlysuspended blocks and grout-proofing the top of the rubble with tallow etc.; shuttering f is then placed over the gap and held by brackets g and cement, concrete &c. is forced through pipes h to fill the gap and the lower part of the space between the upper blocks and the shaft. Brackets j carried by the bolts d and engaging the face of the shaft may form additional supports. The blocks may be steadied by spear pins c.
Patent GB-1108150-A (GB)
Title: Improvements in or relating to pyrophoric lighters
Inventor: KAWAKAMI HEIKICHI
IPC: F23Q2/06
Filed: 1967-03-15
Abstract: 1,108,150. Pyrophoric lighters. KAWAKAMI SEISAKUSHO (MFG.) CO.Ltd. 15 March. 1967, No. 12217/67. Heading F4F. A pyrophoric lighter has a fuel tank 1 with a top wall 1a above which is a windguard chamber formed by flat side cheeks 1c and an arcuate roof 1b the side cheeks having aligned apertures 5 aligned with the wick and a ring of small apertures 5a and the roof 1b having an aperture 5b above the wick.
Patent GB-702777-A (GB)
Title: Ink mist control system
IPC: B41F31/00
Filed: 1951-05-28
Abstract: 702,777. Dust confining in industrial processes. RUNION, H. E. May 28, 1951 [Feb. 8, 1951], No. 12428/51. Class 8 (2). A printing press 8, Fig. 4, is enclosed in a casing 12 having vents 14 through which air from the press room 2, 4, 6 and a vent 10 therein is drawn by a fan 30 which also draws ink mist from the casing 12. The mist is retained by a filter 24a comprising a band mounted on rollers 50, 52 and drawn intermittently across and between chambers 22, 26 when the back pressure in chamber 22 exceeds a value sufficient to depress a diaphragm 64 and so actuate a switch to energise a motor 74 driving the roller 52. In a modification the drive motor 156, Fig. 7, is controlled by a relay 158 energised by a photoelectric cell 162 receiving light from a source 160 through the filter 154.
Patent GB-709860-A (GB)
Title: Improvements in metering devices for regulating the flow of liquids, particularly applicable to such devices for regulating the flow of oil
IPC: G05D7/01
Filed: 1952-05-17
Abstract: 709,860. Regulating volume of flow of fluids. BAXENDALE, J. G. T. April 23, 1953 [May 17, 1952], No. 12533/52. Class 135 A device for insertion in a line for metering the flow of fluid therethrough comprises a plug P screwing into a casing C, the space between the inter-engaging threads providing a helical and restricted path for the fluid, and the plug is positioned by means of a screwdriver inserted in a slot P4 at the upper end to force the lower end into a restricted conical counterbore in the casing and flow will then take place through a transverse slot P5. A spring washer may be inserted under the lower end of the plug to assist in holding it in position. The threads on the plug may, as shown, be of the same profile as those in the casing but of smaller diameter, or one or other of the two threads may be machined to a flattened triangular cross section, or the thread in the casing may be rounded. The outer portions C2, C3 of the casing are threaded to enable the device to be inserted in a line and the middle portion C4 is formed as a hexagonal nut.
Patent GB-1032301-A (GB)
Title: Improvements in or relating to powder filling machines
Inventor: PEPPER ERNEST ERIC
IPC: B65B1/10
Filed: 1964-03-25
Abstract: 1,032,301. Feeding powder from a hopper; packaging-machines. ARENCO-ALITE Ltd. March 24, 1965 [March 25, 1964], No. 12582/64. Heading B8C and B8S. Powder is fed to the chambers 2 of rotary table 1 of a pelleting machine from a hopper 4. The hopper is divided by a conical inner wall 5, the rotating shaft 9 carrying agitator 16 to stir the material above the wall and carrying fingers 11 to stir the material below the wall. Shaft 9 also carries baffle 13 to take the weight of the superposed material, and is adapted to be lowered periodically to stir the material in chamber 2 to even the density of the material discharged.
Patent GB-539766-A (GB)
Title: Improvements in control systems for electrically driven vehicles
IPC: B60L9/26
Filed: 1940-08-05
Abstract: 539.766. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 5, 1940. No. 12604. Convention date, Aug. 4, 1939. [Class 38 (iii)] [Also in Group XXXV] A motor 10 is supplied from a tapped transformer 14 through mid-point chokes 19, 20 across which are connected resistors 34, 35 during tap changing operations so as to prevent surges in the motor circuit. The operation of the various tap switches and the resistor switches 36, 37 are sequentially controlled by a drum 33. Before coil 26a is de-energized coil 46 is energized and the latter is maintained energized until after coil 30a is energized. In case the drum is inadvertently left in a position where coil 46 is continuously energized, a resistor 54 is inserted in series with the coil 46 by time delay drop cut relay 45. Should the resistor 34 overheat, a thermal switch 56 opens the circuit of the coil 46. Switches 36, 37 may be electrically controlled pneumatic contactors.
Patent GB-142856-A (GB)
Title: Improvements in cardboard boxes of the knock-down kind
IPC: B65D5/44
Filed: 1920-05-06
Abstract: 142,856. Schul, M. March 28, 1919, [Convention date]. Knock - down boxes; corner joints. - The sides of a cardboard knock-down box are secured together by wire loops b connected together by a wire a, the loops being passed through slots e in corner-pieces c, d of the box and secured by a wooden rod or bar f passed through them in a downward direction. The loops are all on one side of the wire a, which is situated within a fold formed by a side and the corner piece c. A wooden frame. g, inserted into the upper part of the box to stiffen it, rests upon the tops of the rods f, and is retained in position by angular hocks h driven into the rods.
Patent GB-812633-A (GB)
Title: Improvements in or relating to indicating devices
IPC: A63B71/06
Filed: 1956-04-25
Abstract: 812,633. Sports - marking apparatus. MATWIEJEW, A. July 16, 1957 [April 25, 1956; May 14, 1956], Nos. 12668/56 and 14899/56. Class 132(2) [Also in Group XXXVIII] An indicating device especially for use in sports clubs comprises a board having a series of recesses parallel to each other and receiving the ends of spring clips 14, 15 which can be released from frictional engagement with the surfaces of the recesses by pinching between the fingers of the user so that the clips can be slid along the recesses and regain frictional engagement upon release. As shown, "Perspex" (Registered Trade Mark) strips 12 are attached to boards 11 by pins 13 or by glue. In the recesses between the strips slide spring- steel clips 14 of I shape and 15 of substantially capital omega shape which can slide over the clips 14 without displacing them. The strips 12 may be of I shaped cross-section thereby providing grooves to take ends of clips 14 and 15; or they may be of T or trapezoidal section (Figs. 4, 5, not shown). A further indicating device is provided by a wire 17 stretched between sliders 18 and 19, the latter being easily removable so that wire 17 may be moved without interfering with the clips. The clips may be coloured according to a colour key 16 and further information may be recorded in an indexed book 22.
Patent GB-873881-A (GB)
Title: Ironing machines
IPC: D06F67/08
Filed: 1959-04-15
Abstract: 873,881. Ironing machines. ATELIERS DE CONSTRUCTION E. D'HOOGE S.P.R.L. April 15, 1959 [Jan. 12, 1959], No. 12716/59. Class 138 (2). The bed of a roller-and-concave bed ironing machine comprises a semi-cylindrical inner plate 16, and an outer plate 17 provided with a series of bulges 18 forming a multi-cellular heating chamber 23, all cells of which are interconnected. The plates 16, 17 are welded together at the bulges 18 and at 21, 22. Openings 25 lead to a condensate-collecting manifold 24.
Patent GB-864435-A (GB)
Title: Improvements in a device for hydraulically operating a ship hold hatch cover
IPC: B63B19/197
Filed: 1959-04-15
Abstract: 864,435. Hatch covers. INDUSTRIHYDRAULIK A.B. April 15, 1959 [April 15, 1958], No. 12863/59. Class 113. [Also in Group XXV] An hydraulically operated ships hatch cover comprises a section hingedly connected to the coaming at 12 which is caused to open and close by axial movement of the piston rod 9 in the hydraulic cylinder 10. The cylinder 10 is pivotally connected to the section at 11 and the rod 9 is pivotably connected at 6 with one end of a pulling link 5, the opposite end of which is hingedly connected to the stand 4 and with one end of a link 7, the other end of which is pivotably connected to the bracket 8. The cover may comprise two sections 3a and 3b adapted to open in an inverted like manner with a roller 14 adapted to run along the hatch coaming. The members 5, 7 and 8 may have U-shaped cross-section.
Patent GB-593015-A (GB)
Title: Improvements in or relating to valves for controlling the passage of fluids
IPC: F16K25/00
Filed: 1945-02-08
Abstract: A valve seating is made from a thermoplastic resin such as polythene, polystyrene or acrylic resin.
Patent GB-645768-A (GB)
Title: A method of rendering fabrics water-repellent
IPC: D06M15/643
Filed: 1948-05-11
Abstract: Fabrics are made permanently water-repellent and, in some cases, lubricated or softened, by wetting them with an aqueous emulsion of a siloxane polymer, a major proportion of the siloxane units of which are of the type <FORM:0645768/IV (a)/1> which emulsion contains an emulsifying agent decomposible by heating, drying the fabric and heating to above 100 DEG  C.  The emulsifying agent may be a quaternary ammonium halide such as trimethylbenzylammonium chloride or bromide.  The siloxane polymer is made by hydrolysis of methylhydrogendichlorosilane alone or with other organosilicanes such as dimethyldichlorosilane, octadecyltrichlorosilane, octadecylmethyldichlorosilane, phenylmethyldichlorosilane, and triorganosilicon halides such as trimethylchlorosilane, and triethylchlorosilane.  An organic acid such as acetic acid may be added to the emulsion to inhibit evolution of silane hydrogen. Cotton, woollen, silk, rayon, glass and nylon fabrics may be treated.ALSO:Fabrics are made permanently water-repellent and, in some cases, lubricated or softened, by wetting them with an aqueous emulsion of a siloxane polymer a major proportion of the siloxane units of which are of the type <FORM:0645768/IV (c)/1> which emulsion contains an emulsifying agent decomposible by heating, drying the fabric and heating to above 100 DEG  C.  The emulsifying agent may be a quaternary ammonium halide such as trimethylbenzylammonium chloride or bromide.  The siloxane polymer is made by hydrolysis of methylhydrogendichlorosilane alone or with other organosilicanes such as dimethyldichlorosilane, octadecyltrichlorosilane, octadecylmethyldichlorosilane, phenylmethyldichlorosilane, and triorganosilicon halides such as trimethylchlorosilane, and triethylchlorosilane.  An organic acid such as acetic acid may be added to the emulsion to inhibit evolution of silane hydrogen. Cotton, woollen, silk, rayon, glass and nylon fabrics may be treated.