baber/WOPTO huggingface dataset:
Patent GB-232745-A (GB)
Title: Improved means for delivering pneumatically conveyed grain and other material
IPC: B65G53/46
Filed: 1924-03-17
Abstract: 232,745. Zimmer, G. F. March 17, 1924. Addition to 206,350. Pneumatic conveyers.-The flexible discs or pistons of the parent Specification are reciprocated instead of moved continuously in the same direction. In one form a rod 9 reciprocated by a crank 11 has flexible discs 13, 14 mounted at its centre and flexible discs 15, 16 secured to its ends. The discs fit a pipe 2 which is connected by a pipe 3 to the receiver 1 and has delivery ports 4, 5 in its underside. In another form, two movable discs are mounted on the rod on each side of a central fixed disc and are moved towards and away from the fixed disc.
Patent GB-1074514-A (GB)
Title: Improvements in or relating to telegraph receiving apparatus
Inventor: BOWSHER EDWARD ALBERT HENRY
IPC: H04L1/20
Filed: 1963-02-21
Abstract: 1,074,514. Telegraphy; transistor  pulse shaping circuits. PLESSEY-U.K. Ltd. Feb. 12, 1964 [Feb. 21, 1963], No. 6944/63. Headings H3T and H4P) A telegraph receiver includes means for determining the maximum and minimum levels of the received signal, which may vary due to noise &c., and a unit which compares the instantaneous level of the signal with a threshold level which lies approximately midway between the said levels. When there is a long Mark or Space signal the threshold level is prevented from exceeding a chosen fraction of the maximum signal level. In a first embodiment, Mark and Space channels, e.g. from a f.s.k. demodulator, feed capacitors C1, C2, which assume, respectively, the maximum and minimum levels of the received signals. Since R1=R2 the threshold level on line 14 lies midway between these levels and the outputs of units 10 indicate clearly the Mark and Space bits, which are combined at 12 on to a single line 13. During a long Mark or Space signal, C2 in the appropriate channel will become charged to the level of the signal, and, to prevent the threshold level from rising to the signal level, which would render units 10 very sensitive to noise, the line 14 is clamped to a fraction of the level of the long signal determined by the ratio R3: R4. The other channel does not have its line 14 clamped and will emit low level, spurious, but negligible, signals to unit 12. In a second embodiment, Fig. 2 (not shown), it is arranged that during long Mark or Space signals both channels give accurate indications of the inputs.
Patent GB-1056902-A (GB)
Title: Electrode structure for an electric circuit interrupter
IPC: H01H33/662
Filed: 1965-02-18
Abstract: 1,056,902. Vacuum switches. GENERAL ELECTRIC CO. Feb. 18, 1965 [March 16, 1964], No. 6985/65. Heading H2B. The contact members of a vacuum switch each comprise a hollow copper cylinder 25 having raised weldresistant contact surfaces 30, 31 at one end and mounted, at the other end, on a copper. disc 34, attached to a conducting rod 18a. by means of high resistance stainless steel pins 42 and a single, large, low resistance copper member 40, the cylinder 25 being slotted at 28 at an angle such that the current through the contact to an arc 32 rooting anywhere on the arc running surface 26 of the contact is forced to follow a path L to the member 40 which has a component circumferentially of the cylinder. Since the path L to an arc rooting just to the left of slot 28 passes through a full 360 degrees, the magnetic field created and therefore the circumferential force on the arc is greatest just before it jumps the gap. To produce a more constant force the mating contact (Fig. 1, not shown) is displaced through 180 degrees. In a simplified form of the invention (Fig. 5, not shown) only one contact is provided with the slotted cylinder. To further increase the proportion of the current flowing through the member 40, slots 50 (Fig. 6, not shown) can be cut in the cylinder adjacent to the pins 42.
Patent GB-1441461-A (GB)
Title: Benzene-azo-pyridone dyestuffs
IPC: C09B29/42
Filed: 1973-02-13
Abstract: 1441461 Benzene-azo-pyridone dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 7 Dec 1973 [13 Feb 1973] 7004/73 Addition to 1377613 Heading C4P Novel dyestuffs of the formula (wherein X is halogen, esterified carboxy, CN, CF 3  or acyl; n is 1 or 2; ring A may be further substituted; T is C 1 -C 4  alkyl or aryl; and Z is NR<SP>1</SP>R<SP>2</SP> wherein R<SP>1</SP> is an optionally substituted alkyl, alkenyl or cycloalkyl group and R<SP>2</SP> has these values or is optionally substituted aryl, or -NR<SP>1</SP>R<SP>2</SP> is a heterocycle; and Y is an alkyl group containing at least 3 carbon atoms and their acid-addition salts are prepared by the methods described in Specification 1,377,613. They are used to dye polymeric textile materials, particularly polyesters, polyamides and cellulose esters and those based on acyronitrile and dicyano ethylene.
Patent GB-241097-A (GB)
Title: Improvements in and relating to boxes or containers for fragile articles
IPC: B65D85/42
Filed: 1925-03-16
Abstract: 241,097. Creasey, B. J. March 16, 1925. Fittings, internal; boxes made from special blanks. - Collapsable and other cardboard boxes &c. for thermionic valves, electric lamps, bottles &c. are provided with internal supporting units each of which consists of a pair of surface elements a, a<1>, Figs. 1, 2 and 4, connected only at the edges a<2>, a<3>, the article being inserted between the two elements so that the middle parts can open and support the article resiliently. The two elements may be connected at the point a<6> of the bottom edge and scorings a<5> may be formed so that the bottom edges may bend outwardly at these points. Tabs a' may be secured to or formed on the elements so that when bent over they secure, or in some cases seal, the article in place. The article may also be secured by an inner lid b<1>. The supporting unit may be stapled or glued to a box-forming blank, or, as shown in Fig. 4, may be formed integral with a blank of well-known type, the closure flaps being in some cases omitted. Blanks as shown in Fig. 2 may be inserted in open-ended boxes which are disposed in the cubicles of a partitioned box, or the blanks may be inserted directly in the cubicles. Specification 2012/10 is referred to.
Patent GB-100588-A (GB)
Title: Improvements in and relating to the Precipitation of Copper.
Inventor: RAMEN ARTHUR
IPC: C22B15/00
Filed: 1916-05-18
Abstract: 100,588. Ramen, A. May 31, 1915, [Convention date]. Precipitating.-Copper is precipitated from solutions by metallic scrap in a vessel adapted to be closed and to be rotated or oscillated on a longitudinal horizontal or inclined axis, and provided with a sieve through which the copper and solution are forced by means of a pressure medium after the precipitation. The vessel A is oscillated or rotated and, after completion of the precipitation, is inverted, and steam, air, or other medium is admitted through a pipe E by pressure or suction to drive out the copper and solution through a sieve B, chamber C, and pipe D, to a filter, centrifugal separator, or filter-press. A filter-press may be combined with the vessel A so as to participate in its movements. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modification without means for introducing a pressure-medium. This subject-matter does not appear in the Specification as accepted.
Patent GB-294700-A (GB)
Title: Improvements relating to fillers for egg boxes
IPC: B65D85/32
Filed: 1927-12-02
Abstract: 294,700. Best, F. R. Dec. 2, 1927. Cellular boxes.-One set of strips for forming the fillers or cells of egg boxes is formed with ventilating openings or recesses 3, Fig. 1, between the slits 2 each of which has a lateral projection 7, and the other set has T-shaped openings 6, Fig. 2, formed in line with. the slits 5 so that. when the slits of the strips are interengaged the projectors 7 engage the openings 6 and give rigidity to the structure.
Patent GB-162871-A (GB)
Title: Improvements in the manufacture of cartridges for fowling pieces
IPC: F42B7/12
Filed: 1920-03-09
Abstract: 162,871. Wood, T. Page-. March 9, 1920. Gun cartridges.-Relates to short cartridges b, Fig. 6, of the kind in which the end of the cartridge about the over-shot wad c is pressed in a die after the cartridge has been loaded, in order to reduce the diameter, as described in Specification 19327/08. According to the invention, the over-shot wad c is weakened at or near its periphery to facilitate the reduction in diameter. For example, the edge of the wad is indented or undulated as shown in Fig. 2; or the wad is made with recesses c<1>, Fig. 3, or an annular groove c<2>, Figs. 4 and 5, close to the edge.
Patent GB-1241094-A (GB)
Title: Method of and apparatus for continuously treating solutions, suspensions and like fluid materials containing liquid to wholly or partly remove one or more of the constituents thereof by evaporation
IPC: B29C48/76
Filed: 1969-02-11
Abstract: 1,241,094. Evaporators; recovery of solvent from polymer compositions. WERNER & PFLEIDERER. 11 Feb., 1969 [15 Feb., 1968], No. 7392/69. Heading BIB. One or more volatile constituents is/are removed from a solution or suspension, e.g. a solvent is removed from a plastics composition, by introducing the material to be treated through inlet pipes 3 spaced at a plurality of points along the length of an elongated container 2 through which the material is forced by two rotating interengaging screws 1 while the volatile constituent(s) is/are evaporated. Vapours leave the container through openings 4, one of which is associated with each inlet pipe 3. The treated material is discharged through outlet 5. The inlet pipes 3 are provided with metering devices. Heating or cooling medium may be passed through cavities 6.
Patent GB-587386-A (GB)
Title: Improvements relating to roof construction
IPC: E04D13/064
Filed: 1945-03-23
Abstract: 587,386. Roofs. HILLSON, E. March 23, 1945, No. 7404. [Class 20 (iv)] An eaves unit for a roof comprises a soffit a, drip g, fascia b for carrying gutters and tilt c to support the eaves course of tiles d. The unit, which may be of asbestos cement, may be secured to a steel, timber or concrete roof member h (which also supports the steel roofing k) by bolts i which may also secure gutter brackets e. The part a may extend into the wall j or according to the Provisional Specification, it may be turned downwards at its end.
Patent GB-222667-A (GB)
Title: Improvements in taps or cocks for preventing waste of liquid
IPC: F16K21/10
Filed: 1923-12-04
Abstract: 222,667. Pilkington, L. G., and Soden, E. E. Dec. 4, 1923. Valves closing after predetermined interval of flow.-A self-closing valve is opened by a handoperated piston which transmits pressure through liquid in a cylinder to the valve member, which is provided with a slow-leakage valve to allow pressure fluid in the cylinder to escape and so allow the main valve to close. The cylinder 3 is normally pressed by fluid pressure and by a spring 4 against a rubber ring 5 to close the outlet 18. The piston 6 also rests normally against the ring 5, but when pressed inwards the seating 3 is lifted off the seating 5 due to the closing of the check valve 13 and trapping of liquid within the cylinder. Liquid gradually leaks through the openings 14, 17 so that the cylinder 3 slowly returns to its seating 5 even if the handle 9 is held in the " open '' position. On releasing the handle, the piston returns to the position shown.
Patent GB-1481289-A (GB)
Title: Amplifier arrangement
IPC: G11C11/4096
Filed: 1976-02-25
Abstract: 1481289 Transistor switching circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 Feb 1976 [28 Feb 1975] 07414/76 Heading H3T An arrangement for amplifying small signals from a capacitive source C1 comprises: an IGFET inverter I1 having its input coupled to the input 1 of the arrangement; a first switch T5 for connecting the inverter output to its input; and a signal restoration circuit including a second switch T9 exhibiting a threshold for connecting the inverter input to a predetermined potential and having its control input coupled to the output of the arrangement, the arrangement being such that the output is one side of the threshold when the first switch T5 is conducting and the other side of the threshold when the switch T5 is non-conducting and the input to the inverter changes by a given amount in a given sense, conduction of the second switch then assisting the voltage change at the inverter input. The circuit is used for refreshing a capacitive memory cell C1 during readout. Initially a signal is applied to terminal 10 to charge capacitance C2 at input node 1 to a reference potential determined by the geometry of transistors T1, T2 and the voltage supply at terminal 8. The signal at 10 is then removed and a read signal is applied to terminal 11 to connect capacitive memory cell C1 to input node 1 so that the voltage across C2 will rise or fall depending on whether the voltage stored in C1 is greater or less than the reference voltage stored in C2. If the voltage at node 1 rises the voltage at node 2 rises sufficiently to overcome the threshold of transistor T9 this conducts to apply to node 1 a voltage which augments the change already existing at this node, and recharges capacitor 1. Similarly transistor T10 is turned on to produce an output at node 7. The voltage at node 2 also turns on transistor T7, and if a signal is also applied to 12 (either at the same time as the signal applied to 11 or slightly later) then T8 turn on and a signal is applied to node 3 to augment the change occurring there. If the charge on capacitor C1 is such that the voltage at node 1 falls or remains the same when switch T6 is closed, then no refreshing of C1 is required. In these cases the signal produced at output node 2 remains below the threshold of transistors T7, T9, T10 and no output occurs at 7. Transistor T8 may alternatively be connected between node 2 and earth, and may then be controlled by the signal applied to node 10.
Patent GB-957941-A (GB)
Title: Sulpholene addition products and their preparation
Inventor: MASON KENNETH GEORGE
IPC: C07D333/48
Filed: 1959-03-04
Abstract: The invention comprises 3-(11-cyano) benzyl-sulpholane and a process for preparing addition products of beta-sulpholenes having a carbon atom linked to the 3-position of the sulpholane ring by reacting under basic conditions a beta-sulpholene of the formula: <FORM:0957941/C2/1> where R, R1, R11 and R111 are H, alkyl containing 1 to 4 carbon atoms, substituted alkyl, aryl or substituted aryl, the substituents being such groups as halide, hydroxyl, amine or nitro, with a compound of the formula: <FORM:0957941/C2/2> where X is <FORM:0957941/C2/3> or <FORM:0957941/C2/4> CONH2, CHO or CN, and R2 is the same as R, except that when X is CO2C2H5, Y is not CO2C2H5 or CN.  Typical compounds which react with the sulpholene are ethyl acetoacetate, acetyl acetone, malonic mononitrile, cyano-acetamide, malondiamide, benzyl cyanide and phenyl acetaldehyde.  The preferred sulpholene is butadiene sulphone, but isoprene sulphone and dimethyl sulpholenes are also suitable.  The basic conditions may be obtained by adding sodium or piperidine.  3-Sulpholanyl phenyl acetic acid may be made by reacting beta-sulpholene with benzyl cyanide and hydrolyzing the resulting sulpholanylphenylacetonitrile.
Patent GB-458391-A (GB)
Title: Process of preparing aldehydes
IPC: C07C45/68
Filed: 1936-03-12
Abstract: Higher aldehydes are prepared by reacting a vaporized saturated or unsaturated fatty acid containing at least 6 carbon atoms or its aliphatic esters with formaldehyde vapour in the presence of an oxidizing catalyst.  Fatty acids specified are caprylic, capric, lauric, myristic, palmitic, stearic, arachidic, behenic, lignoceric, carnaubic, cerotic, melissic, oleic, linoleic, and linolenic.  Their alkyl esters, e.g. ethyl, propyl or butyl esters, or glycerides, e.g. stearin or lard, can also be used. The catalysts comprise oxides of metals of the fifth and sixth groups, e.g. V, Co, Mo, or MnO, preferably a mixture MnO.V2O3 which may be supported on a carrier such as pumice.  The presence of carbon dioxide and steam facilitates the reaction.  The temperature may range from the boiling point of the acid up to about 600 DEG  C.  In place of formaldehyde, substances yielding it, e.g. meta- or para-formaldehyde, can be used. An example describes the conversion of oleic acid by passing the vapours together with formaldehyde, steam, and carbon dioxide over MnO.V2O3 at about 400 DEG  C.  The oily layer of the condensed product is fractionated to separate oleyl aldehyde. Unchanged oleic acid may be freed from accompanying ketones and recycled.  The acid may be steam-distilled and the mixture passed direct to the reaction zone, or reduced pressure of, say, 5 lbs./sq. in. may be used to facilitate vaporization.  A further example describes the reaction of ethyl stearate, formaldehyde, and steam using MnO at about 400 DEG C.  Using mixed fatty acids or esters, such as lard fatty acids or lard, a mixture of aldehydes is obtained.  The products can be reduced to alcohols, and sulphonated or sulphated to form "wetting out" agents.
Patent GB-243591-A (GB)
Title: Improvements in or relating to mechanical ladders
IPC: E06C5/04
Filed: 1925-03-19
Abstract: 243,591. Magirus Akt.-Ges., C. D., and Mattes, H. March 19, 1925. Portable wheeled ladder escapes.-Inclinable ladders with a power drive for use on inclined surfaces are provided with automatic means gravity controlled for rotating the ladder laterally about a pivot perpendicular to the axis of inclination to bring the rungs horizontal. The screwed shaft 22 causing the lateral movement is rotated in either direction required -through sliding bevel gearing 16 on it driven from a shaft 26 which in turn is driven from the motor shaft 24. The sliding gear is controlled through lever gear 12, 13, 14, 15 from a servo-motor 8 the power to which is controlled by a valve 9 operated by levers 10, 4 which are under the control of the automatic gravity system fixed to the ladder and comprising connected cylinders 1, 2 containing a heavy liquid and pistons 5. If the ladder carriage is on sloping ground the heavy liquid flows to the lower cylinder moving the piston therein to operate the control valve 9 of the servo-motorwhich controls the lateral movement of the ladder until the cylinders are at the same level. To prevent the nut 26 from striking its bearings, stops 18 are used on a rod 17 to contact with the ladder side and actuate the control valve 9 and the sliding gear 16. Specification 232,870 is referred to.
Patent GB-235947-A (GB)
Title: Improvements in and relating to the production of permanent magnets
IPC: C21D6/00
Filed: 1924-03-25
Abstract: 235,947. Gee, J. E., and Gee, F. S. March 25, 1924. Annealing.-Permanent magnets are made by casting and heat treating the castings before magnetizing, the castings being first softened and then hardened by three successive heatings and coolings. When steel containing cobalt is used, the castings are softened by heating to approximately 6.10‹ C. for half-an-hour and then cooling. The castings are then hardened by heating to approximately 1200‹ C., cooling, and leaving for 18 hours, reheating to approximately 750‹ C. and cooling and finally heating to approximately 1000‹ C. for ten minutes, cooling and then leaving for about 12 hours before magnetizing. Letters or characters used for display devices are preferably cast with feet so positioned that when magnetized the feet form the poles, each letter &c. being provided with more than one pair of feet as described in Specification 193,987, [Class 3 (ii), Advertising &c. other than moving &c.]. The letters or characters are then treated as described above before being magnetized.
Patent GB-226078-A (GB)
Title: Improvements in portable combined food-storing and cooking apparatus
IPC: A47J36/24
Filed: 1924-03-25
Abstract: 226,078. Asche, O. March 25, 1924. Cooking-stoves combined with food-storing apparatus; supports for articles to be heated.-A portable combination food-storing and cooking- apparatus comprises a cabinet 1 with a lining 2 forming a jacket 3 around the bottom, rear, and side walls, through which air from the exterior circulates. A partition 4 divides the interior into two compartments, one containing an icechest 8 for storing food, and the other fuelburners 13 and a grid 14 for supporting utensils above them. The partition 4 is hollow and removably held in guides 5. The ice-chest 8 has a cover formed of. two hinged parts 9, 10, the latter being detachably hinged at the rear to the lining 2 and the partition 4, thus allowing either the front or both parts of the cover to be raised. The lid 21 of the cabinet is held in the raised position by slotted end sector plates secured by nuts. 25. Hinged flaps 11, 29 close the front of the cabinet, and when in the horizontal position form shelves. The rear wall of the cooking compartment is formed of double plates with insulating packing between and having their top edges 37, Fig. 7, flanged to deflect the gases from the lid 21. Air is supplied to the burners by tubes 38 passing through the bottom of the cooker compartment. Wood may be used as fuel in place of the spirit or other burners 13. By removing the ice-chest and central partition 4 the whole 'of the space is available for cooking. The utensil-supporting grid 14 may be replaced by the broiling-grid shown in Fig. 6, having bars 18, 18a of V- section communicating with concave catchments 19 for the juices. The bars and catchments serve as heat-deflectors, and additional heatdeflecting elements, such as those indicated by 20 in Fig. 5, may be detachably fitted. A wire basket 26 for warming plates or the like is detachably secured to the lid 21, and may be placed on the cooking grid for toasting purposes.
Patent GB-1496941-A (GB)
Title: Method for manufacture of magnesium composite and method for manufacture of hydrogen by said composite
IPC: C01B3/10
Filed: 1975-02-24
Abstract: 1496941 Hydrogen M SUKUKI 24 Feb 1975 [1 March 1974] 7627/75 Heading C1A [Also in Division B2] A composite for manufacturing hydrogen by contact with water containing at least 1% of NaCl, KCI, Na 2 SO 4  and/or K 2 SO 4  is made by attaching powder of one or more of Fe, Ni, Zn, Cr and Mn, or oxidized powder thereof, having a mesh size finer than 200 mesh Tyler, in an amount of 0À01-30%, to the surface of magnesium (e.g. in the form of powder, granules, plates or foils) by pressurized friction. In examples the Mg is mixed with the powder in a mortar and stirred with a pestle or powder is put on an Mg ribbon which is then lightly rolled.