baber/WOPTO huggingface dataset:
Patent GB-1355009-A (GB)
Title: Electrical circuit for reducing a voltage
IPC: H02M3/07
Filed: 1972-05-31
Abstract: 1355009 DC-DC converters INTERNATIONAL BUSINESS MACHINES CORP 31 May 1972 [30 June 1971] 25361/72 Addition to 1291330 Heading H2F [Also in Division G3] A circuit for reducing a voltage at 40 comprises capacitors 11, 21, 31 charged in series via a three-electrode switching device 41 and coupled in parallel so as to discharge into a load 71, the switching device 41 being turned on when the voltage across the capacitors falls below a predetermined level. As described, capacitors 11, 21, 31 are initially charged via transistor 41 and diodes 12, 22, 32. When the voltage across capacitor 11 is sufficient, transistor 61 is turned off via capacitor 65, thus turning off transistors 62 and 41. The discharge transistors 13, 23, 33, which have previously been held off by the voltage across diodes 14, 24, 34, are now turned on, discharging capacitors 11, 21, 31 in parallel into capacitor 72 across the load 71. This action continues until,the voltage across capacitor 11, when compared with the reference voltage 60, is sufficient to turn on transistors 61, 62 and 41 thus re-charging the capacitors in series and turning off the discharge transistors 13, 23, 33. A further path via resistor 64 ensures that the mean voltage across the load 71 is maintained constant irrespective of variations in load current and input voltage 40.
Patent GB-890273-A (GB)
Title: Improvements in or relating to lawn mowers
Inventor: KILNER STANLEY RICHARD
IPC: A01D69/02
Filed: 1957-08-12
Abstract: 890,273. Grass-cutters. BRIDGES & CO. Ltd., S. N. June 10, 1958 [Aug.12, 1957], No. 25362/57. Class 6(3). An electrically-driven rotary grass-cutter of the type having blades rotary about a vertical axis comprises a casing 1 having means for detachably but rigidly receiving a portable electric drill 18 so that the chuck 12 can engage one end of a spindle 7 carrying the rotor 8 and blades 9. The means comprises a split sleeve 10 which receives the boss 19 on the drill-casing. Openings 11 in the sleeve permit the tightening of the chuck upon the spindle-end which is conveniently triangular in section. A cover 16 over the openings prevents the ingress of dirt.
Patent GB-1520114-A (GB)
Title: Hardening fixer for use in the processing of photographic elements
IPC: G03C5/38
Filed: 1975-06-13
Abstract: 1520114 Hardening fixer AGFA-GEVAERT 26 May 1976 [13 June 1975] 25405/75 Heading G2C A hardening fixer composition for use in the processing of photographic silver halide elements, comprising a silver halide solvent and an aluminium salt also contains a 1-hydroxy-alkylidene diphosphonic acid the alkylidene group of which contains from 2 to 5 C-atoms. Usual ingredients to give an acidity between about pH 3À5 and about pH 5À5 may also be present.
Patent GB-140020-A (GB)
Title: Improvements in hinges for casement windows
IPC: E05D3/02
Filed: 1919-10-17
Abstract: 140.020. Parkes, S. R. Oct. 17, 1919. Hinges. - The angular members of the hinge for casement windows described in Specification 13123/12 are now made of sheet metal in the forms shown in Figs. 2 and 3, one end 6, 7 of each member 1, 2 being bent over to receive the pivot pin.
Patent GB-1317956-A (GB)
Title: Erosian resistant composites
IPC: B22F7/08
Filed: 1970-05-27
Abstract: 1317956 Sintered refractory coatings G T E SYLVANIA Inc 27 May 1970 [28 May 1969] 25562/70 Headings C7A and C7D A metal substrate such as stainless steels, Ni or Co superalloys has a coating of the following composition by weight per cent: 14-80% Ni, 0À5-10% Cr, 0À2-5% B, 0À3-8% Si and 6-82% TiC. Optionally, the coating may also include 0À1-5% Ag. The coating is formed by applying a first layer of a slurry of an organic binder and solvent containing 6À5-30% Ni, 0À5-3À5% Cr, 0À2-2% B, 0À3-2À5% Si and 67-91% TiC. The layer is sintered at 1750-1900‹F. in an inert atmosphere, and isostatically compacted at 10,000-40,000 p. s.i. A second slurry containing 75-90% Ni, 4À6-11À5% Cr, 2À2-5À5% B and 3À2-8% Si is then applied and sintered in an inert atmosphere at 1780‹F. minimum. The weight ratio of TiC to ether metal components in the first slurry is 4:1 to 6:1 and the weight ratio of the first coating to the second coating is 1:5 to 5:1. The powders are preferably -325 mesh and may be added as separate powders as an alloy containing 86% Ni, 6À5% Cr, 3% B, 4À5% Si with the TiC added separately. The isostatic compaction is effected by sealing the coated substrate in a plastic bag.
Patent GB-789832-A (GB)
Title: Monocular mirror reflex cameras
Inventor: FISCHER OSKAR
IPC: G03B19/12
Filed: 1955-09-08
Abstract: 789,832. Photographic reflex cameras. VEB ZEISS IKON DRESDEN. Sept. 8, 1955, No. 25728/55. Class 98(1) In a reflex camera having a film covering plate, and a built-in objective shutter which has an additional opening arrangement for view-finding by means of the mirror and ground glass screen, an electrical flashlamp contact device, and rotatably mounted shutter blades moved to open and closed positions by the oscillation of a blade-drive ring, a member of the bladedrive mechanism has an arm projecting out of the shutter housing to serve as an actuating member to open the shutter for view-finding. As shown, the setting arm 4 is moved clockwise to tension the spring 5 connected to the control ring 3. Release of the ring 3 and arm 4 permits the lever 6 to strike the end 11 of the transmission lever 9 and pivot it counter-clockwise to drive the blade ring 2 clockwise by the pin-and-slot connection 22, 13 and open the shutter. The lever 16 urged clockwise by the spring 21 is permitted to turn due to the movement of the pin 14 and to contact the bolt in the flash-lamp circuit. When the control curve 8 on an extension of the arm 4 strikes the end 11, the lever 9 is turned clockwise to drive the blade ring counter-clockwise to close the shutter and to move the lever 16 out of contact with the bolt 17. Manual operation of the arm 15 of the lever 9 effects direct actuation of the blade ring 2 to open the shutter. and, although the lever 16 again contacts the bolt 17, the contacts 23, 24 have previously been opened by the automatic movement of the mirror 25 to view-finding position and the flash-bulb is not fired.
Patent GB-839416-A (GB)
Title: Process for the manufacture of n-cycloalkylsulfamic acids and alkali or alkaline earth metal salts thereof
Filed: 1958-08-11
Abstract: N-cycloalkyl sulphamic acids are prepared by reacting a cycloalkylamine with sulphamic acid at below 160 DEG  C. in the presence of a tertiary amine which is liquid at the reaction temperature.  The acids may, if desired, be converted to the alkali or alkaline earth metal salts by treating the reaction product with the metal hydroxide.  The reaction is preferably carried out by adding 1 mol. of sulphamic acid to a mixture of about 3 mols. of cycloalkylamine and at least 2 mols. of the tertiary amine heated to 140 DEG  C. and heating the resulting mixture for 2-5 hours at 140 DEG  C.  The cycloalkylamine is preferably one with 4-7 ring carbon atoms and the tertiary amine may be aliphatic, aliphatic-cycloaliphatic, aliphatic-araliphatic or heterocyclic.  The reaction product may be purified from residual sulphate ions by precipitating with a small excess of barium hydroxide and the barium ions removed by treating with carbonic acid in the pH region corresponding to weak alkalinity to mimosa or by passing the solution over a cation exchange resin.  Examples describe the preparation of N-cyclohexyl- and N-(3-methyl-cyclopentyl)-sulphamic acid and their sodium and calcium salts using as tertiary amines N,N - dimethylamino - cyclohexane, a mixture of b - and g -picoline, 1,6-bis-dimethylamino - hexane, tri - n - propylamine, N,N-dimethyl - benzylamine and dimethylaniline.  Specification 662,800 is referred to.
Patent GB-524496-A (GB)
Title: New or improved moulds for the production of centrifuge pipes of cement aggregate
IPC: B28B21/80
Filed: 1939-01-30
Abstract: 524,496. Moulding pipes by centrifugal machines. LUSSANA, A. Jan. 30, 1939, No. 25819. Convention date, Jan. 9, 1939. Divided out of 524,408. [Class 87 (ii)] A mould for use in centrifugal moulding machines for making cement pipes comprises an assemblage of laths 1 of trapezoidal section secured to a flexible band or bands 12, the assemblage being rolled up into a cylindrical form and held therein by tightening rings. In one form of the latter, the ring comprises three segments 13, Fig. 2, having a hinge joint 14, a double slotted link connection 17, and a hasp closure 15. Wedges 16 driven into the slots 17 ensure tightness. In another form of the ring, two semi-circular parts 23, Fig. 4, are hingedly connected and are provided with offset external projections 23<SP>1</SP>, the ring being closed by causing the projections to snap past one another by twisting them with the aid of a key. The ends of the mould may be provided with perforated annular heads, the perforations being spaced and disposed so as to give a correct setting for reinforcing rods.
Patent GB-1399712-A (GB)
Title: Method of electroslag welding copper
IPC: B23K35/30
Filed: 1972-06-02
Abstract: 1399712 Electroslag welding INSTITUT ELECTROSVARKI IMENI E O PATONA AKADEMII NAUK UKRAINSKOI SSR 2 June 1972 25823/72 Heading B3R [Also in Division C7] In a method of electroslag welding copper plates, the slag- and melt-retaining portions or shoes of the welding apparatus are made of a material, such as graphite, which is capable of inhibiting oxidation of the weld metal and has a thermal conductivity lower than that of copper. A slag bath is formed by means of a non-consumable electrode and a fluoride containing flux (for an example see Division C7) and then welding of the plates is carried out using a consumable electrode which may be in laminated plate form with longitudinal grooves or built up from separate elements and may contain a deoxidizer of a high melting point metal such as Ti, Nb or Zr which may be in the form of one or more internal wires.
Patent GB-1352938-A (GB)
Title: Thermo-gelable polysaccharide
IPC: A23L29/269
Filed: 1971-04-19
Abstract: 1352938 Food preparations from polysaccharides TAKEDA YAKUHIN KOGYO KK 19 April 1971 [24 March 1970 7 April 1970 (2)] 25858/71 Heading A2B [Also in Division C3] The Specification is directed to a novel polysaccharide, designated PS which is a microbial metabolite composed of glucose units connected to each other via mainly #-1, 3-glucosidic linkages. Among its many characteristics, it has a M.W. of from 44000 to 77000, contains no nitrogen, is soluble in aqueous 0.5N NaOH solution, formic acid and dimethyl sulphoxide, silghtly soluble in aqueous ammonia but sparingly soluble or insoluble in plain water, ethanol or acetone, and is gellable by heating in the presence of water forming a gel irreversibly. The polysaccharide PS may be incorporated into food material in amount ranging from 0.05 to 13% by weightrelative to the finished food as served and in the case of starch-containing food, in amounts ranging from 0.0015 to 1 part PS per part of the starch. The finished foods may contain water in an amount of 7-200 times the weight of PS. The agar-like gel obtained by gelling PS is stable even under strongly acidic conditions. A very large number of food (or feed) constituents and food products that may be enhanced with the aid of the polysaccharide PS are specifically mentioned. The preparation of an edible jelly from PS, cane sugar, citric acid, sodium tripolyphosphate, guar gum and water is disclosed. Examples are directed to the incorporation of PS in Japanese kamaboko based on salted fish, potato starch, sweet cake and monosodium glutamate (optionally containing preservative such as sorbic acid or 2 - (2' - furyl - 3 - (5' - nitro - 2' - furyl) - acrylamide)); a simulated jelly-fish delicacy made by steaming a paste of PS in water; a substitute for Japanese konnyaku powder prepared by extending konnyaku powder with the polysaccharide PS; a konnyaku-like gel based on sodium tripolyphosphate, stearyl monoglyceride and sodium glutamate; salad dressing based on corn oil and vinegar; Berliner ham; corned beef; sausage meat; Hamburg steak based on ground beef, butter-roasted hashed onion, egg, rusk and spices; noodles; cookies based on butter, granular sugar, egg yolks and wheat flour; rice; bean jam jelly based on starch, cane sugar and bean jam; cream jelly based on milk, whole eggs and cane sugar; a jelly premix based on cane sugar, citric acid, sodium tripolyphosphate and guar gum; ice-cream based on fresh cream, unpasteurised milk, defatted condensed milk, cane sugar, sucrose palmitate and stabiliser; and a confection based on egg white and cane sugar. The polysaccharide PS may be used as a coating for breading pork chops, in the preparation of imitation fruits for cakes, also in sesame curd and margarine.
Patent GB-442034-A (GB)
Title: Improvements in and connected with lifting trucks or trolleys and other apparatus for lifting and lowering loads
IPC: B62B3/06
Filed: 1934-09-08
Abstract: 442,034. Elevating trucks &c. KIMBER, W. E., 12, Tachbrook Road, Feltham, Middlesex, and AJAX TRUCKS, Ltd., 70, Atlantic Chambers; 7, Brazennose Street, Manchester. Sept. 8, 1934, No. 25890. [Class 108 (i)] [See also Group XXXIV] A brake device for an elevating truck comprises a drum C rotatable in the direction of the arrow, Fig. 2, and having a load applied vertically. Inside the drum is a central member A having stops B. Intermediately are arranged brake lining elements D with a base of springy metal E struck to a radius which is greater than that of the member A. In action the rotation of the drum causes the elements D to press against the stops B and to be expanded against the drum to exert a braking effort in accordance with the load on the drum. In the reverse direction the drum acts as an antifriction roller since the member A and elements are allowed to rotate in the same direction. Figs. 6, 8 and 9 show the brake applied to a lifting truck in which the platform is raised up inclined ways by means of chains 5 operated by means of sectors 4 and handles h. On the platform g, brackets z are provided with inclined portions z<1> adapted to ride on drums t which serve as antifriction rollers when the platform g is being elevated. The bracket z also carries a rack 1 adapted to engage with teeth 1<a> in the drum t on the lowering movement and to rotate the drum t, the pressure of the load being also transmitted to the drum through the inclines z<1>. The interior member or shaft r, s is held from rotation by ratchet- and-pawl 2, 3 and the brake elements u are therefore brought into action to retard the descent of the platform g. Specifications 108,255 and 261,062, [both in Class 108(i)], are referred to.
Patent GB-1049234-A (GB)
Title: Improvements relating to internal combustion engines
Inventor: BASTER FOREST SCOTT
IPC: F02F1/24
Filed: 1964-06-23
Abstract: 1,049,234. Cylinder intake passages. WHITE MOTOR CO. June 23, 1964, No. 25921/64. Heading F1B. An intake passage is formed, adjacent the valve seat 23, with a machined cylindrical portion 22 opening into a conical portion 31. The axis of the conical portion preferably coincides with the valve axis IVA, Fig. 2 (not shown), to which the axis IPA of the cylindrical part of the passage is inclined at an angle of between 0 and 45 degrees. Axis IPA is inclined to the plane DP through the intake port at an angle C of 30 to 80 degrees and is preferably at right angles to the cylinder diameter R, though this angle B may vary from 75 to 105 degrees. The vortex V of the conical portion may lie on the wall of the cylindrical portion so that a part E of the cone coincides with the cylindrical wall. In Fig. 5 (not shown) the inner end of the intake passage is formed in an insert 45; alternatively the insert may include the whole of the cylindrical and conical portions.
Patent GB-242428-A (GB)
Title: Improvements in looms for the manufacture of fur pile fabrics
IPC: D03D39/00
Filed: 1924-10-31
Abstract: 242,428. Morton Sundour Fabriks, Ltd., Morton, J., and Webster, J. B. Oct. 31, 1924. Reeds.-In an open-shed loom for weaving fur-pile fabrics, the tops of the reed dents c are bevelled to allow the fur weft inserted by a carriershuttle p to travel easily thereover.
Patent GB-241580-A (GB)
Title: Improvements relating to the manufacture of mixtures yielding salts of sulphocholoramides
Filed: 1925-10-17
Abstract: Stable mixtures which yield salts of sulphochloramides when added to water are prepared by mixing a sulphonamide or a salt thereof with a hypochlorite.  A salt may be added to the mixture which precipitates the metal of the hypochlorite as an insoluble salt to avoid the formation of an insoluble soap when the mixture is used for washing. According to one example, calcium hypochlorite is mixed with p-toluene sulphonamide and in a second, calcined soda is added to a mixture of these two substances.  In a third example, calcium hypochlorite, potassium toluene sulphonamide and Glauber's salt are mixed together.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the production of sulphohalogenamides. This subject-matter does not appear in the Specification as accepted.ALSO:Stable mixtures for use in washing and bleaching which yield salts of sulphocloramides when added to water are prepared by mixing a sulphonamide or a salt thereof with a hypochlorite.  A salt may be added to the mixture which precipitates the metal of the hypochlorite as an insoluble soap when the mixture is used for washing.  According to one example calcium hypochlorite is mixed with p-toluene sulphonamide and in a second, calcined soda is added to a mixture of these two substances.  In a third example calcium hypochlorite, potassium toluene sulphonamide and Glauber's salt are mixed together.  The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the production of mixtures yielding other sulphohalogenamides.  This subject-matter does not appear in the Specification as accepted.
Patent GB-734425-A (GB)
Title: X-ray diffraction apparatus
Inventor: WAUGH JOHN BLAKE STEELE
IPC: H01J35/30
Filed: 1952-10-16
Abstract: 734,425. X-ray apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 16, 1953 [Oct. 16, 1952], No. 26007/52. Class 98 (1). [Also in Group XL (a)] The electron beam 8 of an X-ray tube is arranged to sweep over an annular sloping target 13, the resulting X-rays being directed as a sheet through a narrow slit towards the central axis of the target. The circular path in which the beam strikes the target is represented by the circle fff in Fig. 2. A specimen I undergoing diffraction analysis is placed at the centre L of this circle, adjacent to a fixed collimator J and radiation detector K. The X-ray beam Hc passing through L sweeps round the target, and each time it strikes the specimen I at the appropriate angle for the diffracted beam to pass into the collimator, the detector K registers a signal; a reference signal is also registered at zero diffracting angle, when the beam Hc becomes collinear with the collimator J. The specimen, detector, and associated equipment is housed in a re-entrant part of the tube envelope, which part has a further extension 11.
Patent GB-502823-A (GB)
Title: Improvements in and relating to welding electrodes
IPC: B23K35/04
Filed: 1937-09-25
Abstract: 502,823. Uniting by fusion. PETERS & CO., Ltd., G. D., and GOODWIN, R. L. Sept. 25, 1937, No. 26021. [Class 83 (iv)] A flux coated arc welding electrode of the kind in which welding current is conducted from the surface to the wire or rod core, comprises a metallic core A on which is wound an open spiral metallic winding B such as a round or polygonal wire or strip, between the turns of which flux or slag forming material C is applied leaving a portion D of the metallic winding exposed, the whole surface being then furnished with a conductive coating E by dipping, spraying, or electrolytic or chemical deposition. The flux may be applied by extrusion of a paste or by winding a fibrous flux between the convolutions of the wire &c. The conductive coating may be applied by electrolytic or chemical deposition or by spraying with or dipping in a metal or other bonded conductive powder. The exposed surface D may be cleaned or etched prior to application of the coating E. The electrode may be in the form of a flexible wire suitable for coiling or in short rod lengths.
Patent GB-731954-A (GB)
Title: Improvements in or relating to panelling for ceilings, walls and like structures
IPC: E04B9/34
Filed: 1952-10-17
Abstract: 731,954. Panelling. BARNSHAW, F. R. Oct. 19, 1953 [Oct. 17, 1952], No. 26043/52. Class 20 (4). Panelling comprises panels having all their edges bevelled so that each panel shall have the form of an oblique prism. Preferably all the panels are identical and they may have the shape of isosceles triangles, rectangles, or regular hexagons. The panels may be solid and made from plasterboard or aerated cement or, as shown, may comprise a light rectangular wooden frame a to either or both sides of which is attached a sheet of translucent or opaque material b. Holes e are provided for the passage of suspension wires on pegs to support the panels spaced from the ceiling or wall respectively. Filling strips f may be utilized at the edges of the assembly or the bevel may be removed on each outer edge of each marginal panel.
Patent GB-629443-A (GB)
Title: A machine for conveying and distributing documents or other objects
IPC: B07C3/08
Filed: 1947-09-26
Abstract: 629,443. Sorting documents ; endless conveyers and elevators; delivering articles from hoppers. NAAMLOOZE VENNOOTSCHAP TECHNISCHE MAATSCHAPPIJ MARCHAND-ANDRIESSEN. Sept. 26, 1947, No. 26181. Convention date, Jan. 29. [Class 78 (i)] In a machine for conveying and distributing documents and other objects of the type in which the documents .or the like are carried by carriers on a conveyer, each carrier delivering its contents to one of a series of receptacles according to the setting of means on the carrier, a subsidiary conveyer carries the documents or the like from a central position to the main conveyer and the means on the carriers are set under control from the central position when they are at such a distance from the point at which they receive the documents or the like that each carrier will receive the document or the like for which it has been prepared. The carriers 20, Figs. 4 and 5, are angularly adjustable on bridge pieces 13a mounted between the links 13 of an endless chain conveyer 14 and are set by a device 19 under the control of a keyboard 10 at the correct angle to deliver to one of the shoots 21 leading to receptacles 22. After leaving the setting device 19 each carrier travels to a point at which the correct document is inserted from an elevator 17 transferring the documents from a position adjacent the keyboard 10, then to an unloading position over the receptacles 22 and finally to a device 23 which realigns the carriers. The elevator 17, Fig. 8, comprises an endless chain carrying members 18, 26 between which and a pivoted member 28 the documents are gripped under the tension of a spring 27. At the upper part of the elevator 17 adjacent the conveyer 14 a roller 30 on an arm 29 secured to each member 28 engages a ramp 31 so that the member 28 is moved to permit the document to fall into a slot 32. In the slot 32, Fig. 7, are mounted two pairs of spring steel cams 37, 38 mounted on shafts 39, 40 to which an oscillatory rotation is imparted by chains 43 passing round sprockets 41, 42 on the shafts 39, 40 and operated by a member 44 on a rod 45. The rod 45 is reciprocated by a linkage driven by a lever intermittently operated by the passage of the link pins of the conveyer 14 so that each time a carrier 20 is opposite the slot 32, the cams 37, 38 are moved to eject the document in the slot 32 into the carrier. The setting device 19 is preferably controlled electrically from the keyboard 10.