baber/WOPTO huggingface dataset:
Patent GB-659350-A (GB)
Title: Drying grass or other fibrous materials
IPC: F26B3/34
Filed: 1949-05-02
Abstract: 659,350. Drying apparatus. CARR. J. B. and HANDLEY, C. G. May 2, 1949, No. 11590. [Class 34(ii)] [Also in Group XI] After initial heating and removal of some of its moisture by squeezing, grass or other fibrous material is compressed into a strip or ribbon and conveyed between the electrodes 13, 14 of a high-frequency heater 15 to remove the remainder of the moisture. The grass &c. is pre-heated in a bath 1 of hot water heated by an immersion heater 2 and then fed between conveyers 3, 4 and carried between pressure rollers which squeeze out a large amount of moisture. The moist grass then enters a casing 8 within which a worm rotates to feed the grass forcibly through a duct 10 of decreasing cross-sectional area towards its exit end so that the grass is compressed and issues from the duct as a compact ribbon directly to between co-operating stretches of endless band conveyers 11, 12 which embrace the ribbon and convey it slowly between the electrodes 13, 14 of the high frequency heater to complete the drying process.
Patent GB-1339472-A (GB)
Title: Hydroxyethylhydroxybutyl celluloses and their preparation
IPC: C08B11/193
Filed: 1971-04-27
Abstract: 1339472 Hydroxyethyl hydroxybutyl cellulose SHINETSU CHEMICAL CO 27 April 1971 [27 April 1970] 11679/71 Heading C3A [Also in Divisions A2 and A4] A hydroxyethylhydroxybutyl cellulose of the formula R<SP>1</SP> m R<SP>2</SP> n A wherein R<SP>1</SP> is a hydroxyethyl group, R<SP>2</SP> is a hydroxybutyl group, A is a cellulose residue and m and n are positive integers is prepared by reacting cellulose with ethylene oxide and butylene oxide in the presence of water and alkali (e.g. NaOH, KOH) and optionally in the presence of a water-soluble organic solvent. The oxides may be reacted one at a time or simultaneously. Where they are reacted simultaneously to avoid side reactions with the solvent e.g. isopropanol an inert solvent is added, e.g. benzene.
Patent GB-109636-A (GB)
Title: Improvements in and relating to the Planes of Aeroplanes.
Inventor: AHLBRECHT AUGUST
IPC: B64C3/00
Filed: 1916-08-17
Abstract: 109,636. Ahlbrecht, A. Aug. 17, 1916. Planes, arrangement of.-To preserve the lateral balance of aeroplanes, inclined superposed surfaces 3, 4 are arranged at the ends of the supporting-planes, and two inclined surfaces 6 are arranged, as shown, near the centre of the upper plane, above which the surfaces 4, 6 extend. The upper edges of the surfaces 6 are at a higher level than those of the surfaces 4, and both have horizontal deflectors 5, 7. The upper supporting- plane is divided into sections 8, 9, 10 with spaces to permit access of air currents to the surfaces 4, 6. The surfaces 3, 4, and 6 are inclined at approximately 30 degrees.
Patent GB-233700-A (GB)
Title: Improvements in and relating to shock absorbers for vehicles
IPC: F16F9/14
Filed: 1925-05-05
Abstract: 233,700. Morgan, Blodgett, Morgan, Inc., (Assignees of Morgan, P. S.). May 12, 1924, [Convention date]. Fluid-friction vibration-dampers. -The vibrations of a vehicle on its springs are damped by a cylinder and piston apparatus actuated by cams which operate in such a way that movements away from the normal position either up or down are free, while the return movements are checked, the apparatus being adapted, however, to check excessive departures from the normal position. The apparatus shown in Figs. 3 and 5 is bolted to the side of the main frame and the hub part 40 is fitted with a lever arm which is rotated when the springs flex by a link connection to the axle. The cylinder 19 is secured in the end of the casing 16 and the piston 23 is moved in and out of the cylinder by cam gearing in which cams are provided on both sides of a fixed plate shown also in Fig. 6, those on one side engaging corresponding cams arranged round the periphery of the piston 23, while those on the other side engage cams on a member 26. The piston 23 and the member 26 are fixed to one another by pins 27, and are slidably connected to but rotate with a member 32 to which is keyed the hub 40 so that the piston is moved longitudinally in its cylinder when it is rotated by the hub. With the apparatus in its normal running position, the cams on the piston 23 and those on the same side of the fixed plate 17 engage crest to crest. Movement in either direction from this position results in free movement of the piston 23 along its cylinder 19, liquid being drawn into the cylinder from the reservoir in the casing 16 through the one-way valve 43. The return movement of the piston is retarded by the return of the liquid to the reservoir through a small orifice 36 leading from a central passage in the member 32. The effective size of this orifice is varied by an eccentric pin 38 operated by a pointer 39 from the outside. A spring-loaded safety valve 46 prevents excessive pressure in the cylinder. If the relative displacements of axle and frame are excessive, the cams bring about the return of the piston 23 so that further displacement is resisted. The contacting surfaces in normal position are slightly flattened to permit slight relative rotation in either direction without movement of the piston.
Patent GB-166376-A (GB)
Title: Apparatus for draught inducing on locomotives, and the like
IPC: F23L17/16
Filed: 1920-04-28
Abstract: 166,376. Scott, W. April 28, 1920. Locomotives, draught induced by motion of. -Air is forced, by the motion of the locomotives &c., into a duct A partly surrounding the smokebox and thence into the annular space between the uptake B and the chimney H, thus exerting suction on the smoke &c. issuing from the uptake. The suction is adjusted by means of a sliding sleeve C on the pipe D operable from the cab. The intake is protected by wire gauze, and a fan may be provided in it for use when the locomotive is stationary. According to the Provisional Specification, a damper may be fitted in the intake.
Patent GB-127147-A (GB)
Title: Improvements in Screw Propellers.
Inventor: HOLT JOHN
IPC: B64C11/24
Filed: 1918-07-18
Abstract: 127,147. Holt, J. July 18, 1918. Screw propellers. - Relates to screw propellers, particularly for aircraft, which are made of sheet - metal plates united at their edges and reinforced by internal longitudinal webs. Each blade is composed of two helical steel plates 1, 2, Fig. 3, riveted along their edges. The rear plate 2 is strengthened by two rows of depressions 3. Figs. 1 and 4, arranged obliquely and of such a length as to overlap in a longitudinal direction. The depressions may be omitted near the tip to give flexibility to the blade. The front member 1 of the blade is provided with an extension which is bent around the boss and riveted to the rear plate of the opposite blade. The ends of the boss consist of flanged plates 7, Figs. 1 and 6, riveted to the blade plates. The central sleeve 9 of the boss is surrounded by a ring of smaller sleeves 10 fixed between the end plates 7 and providing sockets for the attachment bolts of the hub. The blades are made more rigid by internal longitudinal webs 11, those of both blades being integral with the central disk 12. The webs extend through slots 13 in the walls of the boss and are stiffened in the same manner as the blade plates, by depressions 14. The webs may be provided along their rear edges with projections 15 which enter holes in the rear plate 2 and are secured by welding. The front edges of the webs are flanged and riveted to the front plate as at 16, Fig. 4. Reference has been directed by the Comptroller to Specification 132,300.
Patent GB-567625-A (GB)
Title: Improvements in or relating to note cases or purses
IPC: A45C1/08
Filed: 1943-07-20
Abstract: 567,625. Note - cases &c. FLINT, A. W. July 20, 1943, No. 11798. [Classes 18 and 133] A note-case, purse, portfolio, or the like, having two pockets b and a central partition c forming a wall common to both pockets, is provided with closing-flaps d, e for the open ends of the pockets attached to one edge of the partition. The pockets are moulded round the edges to allow for expansion and fasteners k are provided. The partition may be made of a different material from that of the pockets, and the edges, which project beyond the pockets, are bound with the same or a different material. For larger cases, the partition may be extended at the top and formed as or provided with a carrying-handle.
Patent GB-194194-A (GB)
Title: Improvements in and in the manufacture of making chain links for conveyor apparatus
IPC: B21L9/02
Filed: 1922-04-28
Abstract: 194,194. Barker, W. H., and Berrisford, W. H. April 28, 1922. Driving and like chains with separate joini pins.-The link plates a of conveyer chains having laterally-extending lugs c for attachment to the conveyer plates are formed by rolling a bar to a cross-section that is partly rectangular, as at a, and partly wedge-shaped, as at b, then cutting this into lengths, then removing the ends of the wedge-shaped section to leave a central integral portion c, then bending over the portion c, and finally shaping the ends and drilling the boltholes, i j.
Patent GB-707571-A (GB)
Title: Process for the preparation of threo-1-p-nitrophenyl-2-amino-1,3-propanediol
Filed: 1951-05-22
Abstract: The invention comprises threo-1-phenyl-1 : 3-diacyloxy-2-aminopropane hydrochlorides of the general formula <FORM:0707571/IV (b)/1> (wherein R and R1 represent like or different alkyl groups), and a process (in which they are intermediates) for preparing threo-1-p-nitrophenyl-2-amino-1 : 3-propanediol in which an N : O3 - diacylated 1 - phenyl - 2 - amino - 1 : 3 - propanediol, whether of the erythro or threo series or a mixture of diastereoisomers, is first transformed into the hydrochloride of the O : O-diacylated threo - 1 - phenyl - 2 - amino - 1 : 3 - propanediol by treatment with thionyl chloride, phosphorus pentachloride or phosphorus oxychloride, in an inert organic solvent substantially immiscible with water, and subsequent decomposition of the reaction mixture with water at 0-80 DEG  C., the resulting product, optionally isolated, is nitrated at a temperature below 0 DEG  C., and the nitration product is hydrolysed. The nitration is preferably effected with fuming nitric acid or mixed (sulphuric and nitric) acid, free from nitrous acid, and hydrolysis may be effected directly on the nitration product by dilution with water and heating to 60-100 DEG  C. Alternatively the nitration product may be diluted with icy water, alkalized to pH 7-8, and extracted, preferably with ethyl acetate, and the extracted product (which is an N : O3-diacylated threo-1-p-nitrophenyl - 2 - amino - 1 : 3 - propanediol) hydrolysed with hot dilute mineral acid.  In examples: (1) threo - 1 - phenyl - 2 - acetylamino - 3 - acetoxypropan-1-ol is warmed with phosphorus pentachloride in chloroform, the reaction mixture is stirred into a cold aqueous solution of sodium carbonate, and threo-1-phenyl-1 : 3-diacetoxy - 2 - aminopropane hydrochloride is crystallized from the chloroform layer; the product yields an N-benzoyl derivative which can be hydrolysed to threo-1-phenyl-2-benzamido-1 : 3-propanediol; (2) the phosphorus pentachloride and chloroform in (1) are replaced by thionyl chloride and benzene, the reaction being effected without heating; (3) erythro-1-phenyl - 2 - acetylamino - 3 - acetoxypropan - 1 - ol is treated as in (1) or (2); (4) the product of (1)-(3) is nitrated, the nitration mixture poured on to ice and alkalized with sodium carbonate, and threo-1-p-nitrophenyl-2-acetylamino-3-acetoxypropan-1-ol is extracted with ethyl acetate and hydrolysed with dilute hydrochloric acid to threo-1-p-nitrophenyl-2-amino-1 : 3-propanediol; (5) the nitration mixture in (4) is diluted with ether to crystallize threo - 1 - p - nitrophenyl - 1 : 3 - diacetoxy - 2 - aminopropane nitrate, which is then converted to threo - 1 - p - nitrophenyl - 2 - amino - 1 : 3 - propanediol by the two-stage process as in (4); (6) the nitration mixture in (4) is diluted with water and heated to effect hydrolysis directly; (7) the processes of (1), (2) or (3) and (4), (5) or (6) are combined without isolation of the first intermediate. Specification 687,214 is referred to.
Patent GB-1203912-A (GB)
Title: Improvements in the production of reinforced aerated concrete
Inventor: EKSTEDT G
IPC: E04C2/04
Filed: 1969-03-06
Abstract: 1,203,912. Moulding reinforced aerated concrete. YTONG INTERNATIONAL A.B. 6 March, 1969 [8 March, 1968], No. 11969/69. Heading B5A. [Also in Division E1] Reinforced aerated concrete products, e.g. a panel, are moulded by casting into a mould a first layer thereof which is permitted to expand under the action of gas developing materials, e.g. to twice the original volume, and set to a load bearing consistency and, after making the upper surface plane, e.g. with a rotating miller, a reinforcing mat comprising cross-welded steel rods is located thereon, followed by a further similar concrete mass which expands and sets. The reinforcing mats may be provided with short steel rods perpendicular to and welded to the mat which extend into the concrete to fix the position of the reinforcement therein.
Patent GB-414016-A (GB)
Title: Improvements in or relating to tables
IPC: A47B1/02
Filed: 1934-04-21
Abstract: 414,016. Tables. LUPTON, F., and LUPTON & SONS, Ltd., J., Tong Road, Leeds. April 21, 1934, No. 12031. [Class 52 (iii).] A table comprising two pairs of folding leaves is arranged so that the top may be a two-leaf, a three-leaf, or a four-leaf top. Fig. 2 shows the table arranged as with a three-leaf top, consisting of two extended leaves 7, 8 on sliding bars 3, and two superposed leaves 11, 5 on similar sliding bars 4. As a two-leaf top table the leaf 9 is superposed on the leaf 7, and the links 6 are inclined so that the leaves 7, 9 are at the same levels as the leaves 5, 11. When the leaves 7, 9 are pulled outwards, lazy-tongs 13 move similarly the leaves 5, 11. Simultaneously the leaves 7, 9 rise on the links 6, and the leaf 9 may then be inverted on the links 8 and set so that the leaves 7, 9, 11 are all in the same plane as shown. To extend the table again, the leaves 7, 9 are further withdrawn until the leaf 11 may be turned on its links 10 into the space between the leaves 5, 9 ; the leaves 7, 9 then fall to the level of the leaves 5, 11, the links 6 assuming an inclined position. Pins on the bars 4 and on their guides 2 co-operate with pivoted spring catches 16 to control to a certain extent the outward movements of the bars 4 and the leaves.
Patent GB-197338-A (GB)
Title: Method of making, without and photographic exposure, two negatives of a sheet of paper printed on both sides, which method may also be used for other purposes
IPC: G03F1/00
Filed: 1923-05-04
Abstract: 197,338. Cato, C. C. May 4, 1922, [Convention date]. Negatives, producing by means other than photography. - A method of splitting paper printed on both sides along its middle plane to form two negatives consists in moistening it with water, placing it between two agglutinizing layers such as gelatin films, pressing the layers together, and then separating them by hand, or by known mechanical means.
Patent GB-1163666-A (GB)
Title: Device for Grouping Folding Cartons or the like.
Inventor: KORNER SIEGFRIED
IPC: B65H33/02
Filed: 1967-03-15
Abstract: 1,163,666. Delivering sheets. KARTONAGENMASCHINENWERK KAMA VEB. 15 March, 1967, No. 12075/67. Heading B8R. Collapsed cartons 36 are fed from a gluing machine between press cloths 1, 2, sensed by an electromechanical emitter 32 associated with a counter, and pass to a grouping station 38 where they are stacked on edge on a guide plate 5. Freely pivoted between chains 19 are three pockets each comprising a curved part 18 and a spike 17, normally resting in the slanting position shown for the topmost pocket. With the chains stationary, one pocket is above the stack being formed and when a given number of cartons is counted, a solenoid 14 operates a rod 16 to engage the spike, which moves into the stack and separates the counted batch from the cartons subsequently fed. The chains 19 are then moved, so that the pocket is lowered around the stack and moves it to the left to where it can be manually removed, while the following cartons are held back by brushes 12 and retaining flaps 7. The chains then come to rest in the position shown with the next pocket in position.
Patent GB-855391-A (GB)
Title: Nuclear reactors
IPC: G21C15/06
Filed: 1958-04-17
Abstract: 855,391. Nuclear fuel elements. SULZER FRERES S.A. April 17, 1958 [May 29, 1957], No. 12255/58. Class 39(4). A fuel element comprises three rods of fissile material in which are embedded cooling tubes, each of the rods enclosing two cooling tubes and having a cross-section in the form of a figure 8 and such that the three rods form a bundle in which five cooling tubes are grouped to form a pentagon about a sixth centrally situated cooling tube. In the figure the three rods 2, 3, 4 are enclosed in a protecting tube 10 and each contain two zirconium cooling tubes 1. The spaces between the rods and the tube 10 provide thermal insulation and may be evacuated or filled with gaseous or solid insulating material such as granular graphite. The thickness of the rod 4 surrounding the central tube is less than elsewhere to prevent overheating of the central tube. The rods 2, 3, 4 may first be produced in partial lengths which are arranged end to end and joined together by welding the cooling tubes projecting from the fissile material of the partial lengths. The tubes may be connected together in pairs at one end of the element so that the coolant, which may be water at a pressure up to 1400 p.s.i., flows down one tube and returns by way of its pair.
Patent GB-859772-A (GB)
Title: Pressure control servo valve
IPC: G05D16/20
Filed: 1957-04-16
Abstract: 859,772. Fluid-pressure servomotor-control systems. MOOG SERVOCONTROLS Inc., [formerly MOOG VALVE CO. Inc.]. April 16, 1957] [April 18, 1956], No. 12385/57. Class 135. A valve for controlling a fluid-pressure differential applied to an external hydraulic motor coupled to a load has a valve spool adapted to maintain a balance between a spool driving differential pressure which is applied to the spool and produced by an electro-hydraulic amplifier in proportionate response to an electrical control input and a differential pressure which is developed between actuating ports communicating with the chamber in which the spool is driven and the hydraulic motor. The input signal is fed to a solenoid motor 32 to cause the flapper portion of a regulator member 34 to vary its position in relation to the discharge openings of nozzles 35 and 36 fed from a pressure port 16 via passage 41 and restrictors 42. The difference in pressure between the two nozzles is sensed by the end faces 27 and 27a of the valve spool 21 via passages 45 and 46, respectively to cause the spool to move to bring one of the actuating ports 18 or 19 in communication with the pressure supply port 16, at the same time opening the other port to the return port 15. The pressure difference across the actuating ports 18 and 19 and hence across the hydraulic motor represented by the piston and cylinder 20 is communicated to the ends of the spool by passages 47 and 47a in an opposed sense to the controlling pressure differential applied to the surfaces 27 and 27a. When the pressure difference across the load reaches a predetermined value relative to the control pressure differential the spool is returned to the neutral position and a state of balance is achieved. The ratio of the controlled pressure difference across the motor to the control pressure differential applied to actuate the spool is determined by the ratio of the areas 27 to 29. Specification 854,287 is referred to.
Patent GB-200954-A (GB)
Title: Improvements in and relating to portable electric lamps particularly intended for use in mines and other places where explosive gases are present
IPC: F21L4/00
Filed: 1922-05-02
Abstract: 200,954. Watts, Fincham, & Co., Ltd., and Jolly, F. W. May 2, 1922. Lantern door fittings. -A frame for securing a lens in a gas-tight portable electric lamp is secured in position by a clamp 30 which engages the bevel edge of the frame 28, and a detachable casing 1, containing the battery. The clamp is moved into the locking position against a spring 36 by a screw 31 engaging a fixed nut 34.
Patent GB-750967-A (GB)
Title: Improvements in lifting appliances having a cable drum driven via a hydraulic clutch
IPC: B66D5/26
Filed: 1954-04-29
Abstract: 750,967. Winch control. WESTINGHOUSE BREMSEN-GES. April 29, 1954 [June 12, 1953], No. 12432/54. Class 78 (5). A lifting appliance having a cable drum 5 driven from a driving motor 3 via an hydraulic clutch 4, has a drum brake 8 which is applied by mechanical force 7 and which is released, when the driving motor is switched on, by means of pressure fluid produced by an air compressor 9 operatively coupled to the said driving motor. As shown, the air circuit also comprises cooling pipe 12, filter 13, spill valve 17, throttle screw 15; and electromagnetic valve 16 controlled by press-button switch 23. Alternatively, the air circuit may include a storage tank so that the air therein may be used to release the brake when the motor is stationary.
Patent GB-248595-A (GB)
Title: Improved air compressor
IPC: F04B39/00
Filed: 1925-05-13
Abstract: 248,595. Vooght, L. de. May 13, 1925. No Patent granted (Sealing fee not paid). valves, arrangements and actuation of. - A compressor with horizontally opposed cylinders and a single crank is provided with inlet valves in the pistons each adapted to be opened by a projection in the small end of the connecting rod. A crank 11 is coupled by connecting rods 10 to the pistons 6 which have cup-shaped packing 8 and spring-pressed valves 7 adapted to be opened by projections 14 on the rods. The cylinder heads have valves 4, 4<1> leading to a common duct 15 in the base which has a safety valve 12 and a nozzle 13 for tubing.
Patent GB-541130-A (GB)
Title: Stretching work-clamp for sewing machines
IPC: D05B3/06
Filed: 1940-08-01
Abstract: 541,130. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Aug. 1, 1940, No. 12436. [Class 112] Button hole sewing-machines. With an undivided work-clamp, the work is stretched after the clamping pressure is fully applied. In one form a groove 68, Fig. 3, is cut in the work plate 30, on to which the clamp closes, and when the clamp is closed a plate 65 slidably mounted on pins 66, Fig. 7, on one inner wall of the clamp, is pressed into the groove 68. In another form, one of the walls 108, Fig. 17, of the clamp is pivotally mounted on the clamp structure and is turned slightly after the clamp is closed to move its work-engaging surface away from that of the other wall 107. In the former case, the depression of the plate 65 is caused by a cam 72 on a shaft 73 which may be operated by a finger piece 75 or automatically. In the latter case, the cam 72 in co-operation with a spring 113 acts only as a holding device and the wall 108 is tipped by means of ball-ended screws 111 which engage a lever arm 110 secured to the wall 108. The stretching device is depressed automatically, after the clamp is closed by means of a lever 77 connected to the stitch starting gear which engages a ball-ended projection 76 on the shaft 73 and is raised after the stitching operation by means of a link 86 connected with the clamp-opening gear. The machine may be used to stitch a line or bar of stitches at the end of a garment waistband and the cutter, normally used for cutting the buttonhole, trims off the projecting end of the waistband. The cutter is given a needle-avoiding movement as described in Specification 542,617.