baber/WOPTO huggingface dataset:
Patent GB-549651-A (GB)
Title: Improvements in liquid-break electric circuit breakers
IPC: H01H33/12
Filed: 1941-06-09
Abstract: 549,651. Liquid-break switches. BRITISH THOMSON-HOUSTON CO., Ltd. June 9, 1941, No. 7277. Convention date, June 8, 1940. [Class 38 (v)] A liquid-break switch has separate operating mechanisms for arcing-contacts and seriesconnected, liquid-immersed isolating-contacts, interlocking means being preferably provided for ensuring that the circuit is made and broken at the arcing contacts. In Fig. 1, arcing contacts arranged as in Specification 493,262 to provide a plurality of breaks, are located in chambers 41 at the foot of insulators 13, 13<SP>1</SP> and connected in series with isolating fixed contacts 15, 15<SP>1</SP> and movable bridge 16, the latter being carried by operating rod 17 within a tank 10 constructed as in Specification 295,037, [Class 38 (v)], and operated through straightline linkage as in Specification 295,036, [Class 38 (v)], from rods 32, 34 and trip-free actuating mechanism (hot shown) in housing 35. Each chamber 41 comprises movable contacts 43, 44 on a rod 45 which is pivoted to a lever 54 pivoted in turn at 55 and urged open by a spring 56. Levers 54 are connected by rods 53 to a link 58 bell-crank connected at 59 to rod 62 and hence to rod 64 and a further trip-free actuating mechanism in chamber 35. The rod 62 carries an interlock 65 preventing closure of the arcing-contacts before the isolating contacts have been closed, and there may be provided contacts 79, Fig. 2, for reclosing the arcing- contacts at least once at high-speed before the isolating-contacts are opened. In this Figure, also, the number of moving parts that have to be tripped is reduced by arranging the operating means of rod 64 to be de-energized and the rods 62, 64 to be restored to a position corresponding to the open position of the arcing contacts. Thus the link 58 is operated by a lever 68 which is pivoted at 69 and carries a roller 74 engageable with a latch 75 which can be tripped by a coil 76. Also pivoted at 69 is bell-crank lever 70 one arm of which is pivoted at 71 to rod 62 whereas the other carries a pin 73 that engages lever 68 to move it into latched-close position, the lever 70 being moved back to the dotted-line position when the actuating-means in 35 is de-energized. If the rods 32, 34 are moved to open position, a hook 77 on rod 32 trips latch 75 and opens the arcing-contacts first. In Figs. 3 and 4 (not shown), the rod 68 is operated to closed position by a chain mechanism as set out in Specification 490,641 and directly by an electromagnet respectively, the rods 62, 64 being dispensed with in the latter case. In Fig. 5 (not shown), the rods 53 are directly operated by a self-latching solenoid constructed as set out in Specification 536,281, the proper sequence of operation being ensured by electrical interlocks.
Patent GB-557723-A (GB)
Title: Cement composition and method of making the same
IPC: C04B24/06
Filed: 1942-05-29
Abstract: 557,723. Hydraulic cements. MASTER BUILDERS CO. May 29, 1942, No. 7321. Convention date, Aug. 14, 1941. [Class 22] Hydraulic cement clinker is ground with the addition of, e.g. up to ¢ per cent. of a compound of the formula where R is a metal, hydrogen, or ammonium, or an organic radical, X is a group with replaceable hydrogen or a derivative thereof or a group without replaceable hydrogen and Y is hydrogen or a group with replaceable hydrogen or a first derivative thereof, together with, e.g. up to ¢ per cent. of a cement dispersing agent, e.g. a waste sulphite liquor residue, saponin, naphthalene- or other aromatic sulphonic acid or their derivatives or homologues. The substances are added to facilitate grinding, increase the compression strength of concrete made from the cement and reduce the tendency to " bleed " &c. Specifications 431,679 and 557,721 are referred to.
Patent GB-1275035-A (GB)
Title: Improvements in or relating to impact absorption devices
Inventor: SCHARFENBERG WALTER
IPC: F16F7/12
Filed: 1971-03-16
Abstract: 1275035 Impact absorbers for use with railway couplings SCHARFENBERGKUPPLUNG GmbH 16 March 1971 7343/71 Heading B7T [Also in Division F2] An impact absorber, for use with railway combined buff and draft gear of a central buffer coupling, comprises coaxial hollow cylinders 1, 2 defining an annular gap 3 which at its open end diverges at 9 and is engaged by the chamfered free end of a further holder cylinder 8 whose wall thickness is greater than the gap width, such that an impact force on a coupling in excess of 200 tonnes is absorbed by the cylinder 8 entering the gap 3 with permanent deformation of cylinders 1 and 2. The cylinder 1 has at its free end an outer reinforcement 4 and the cylinder 2 is reinforced by being closed by a plate 7. The portion 8a of the cylinder 8 is greater than the remainder of the cylinder and may be case-hardened.
Patent GB-651651-A (GB)
Title: Improvements in or relating to bobbins
IPC: H01F5/02
Filed: 1948-03-10
Abstract: 651,651. Bobbins. TAYLOR, A. March 10, 1948, No. 7363. [Class 120(iii)] A bobbin of the type consisting of a hollow core of square or rectangular crosssection made up of four separate panels, and end cheeks or flanges attached to the ends of the core, has at least one longitudinal edge of each of the four panels rabbeted or stepped to receive a longitudinal edge of an adjoining panel, and each end cheek formed with a perforation corresponding in shape to the cross-section of the core and provided on two opposite edges with tongues which engage grooves in the corresponding panels, the other two edges of the perforation being plain. As shown, one of the longitudinal edges of each of the core panels 2, 3 is plain and the other has a rabbet or step 5 to receive the plain longitudinal edge 6 of the adjacent panel. Grooves in panels 2 are engaged by tongues on the end cheeks 4 in the manner disclosed in Specification 595,083. In a second embodiment both longitudinal edges of each of the four panels are formed with rabbets, the rabbets of one panel engaging with the rabbets of the two adjacent panels.
Patent GB-662072-A (GB)
Title: Improvements in and relating to apparatus for separating dust from gases
IPC: B01D45/16
Filed: 1949-03-18
Abstract: 662,072. Centrifugal separators. KONINKLIJKE MACHINEFABRIEK GEB., STORK & CO., N.V. March 18,1949. [March 22, 1948] No. 7427/49. Class 23. [Also in Group XXVIII] An apparatus for separating dust from gas comprises a duct 1 having a tubular bend 5 having limits A-A, B-B through which the dust-laden gas flows and which forms a passageway having inner and outer curved wall portions, and a grating of arcuate blades 7 extending across the passageway from one curved wall portion, e.g., the inner wall; the dust-laden gas changing its direction of flow before traversing the grating, and the heavy particles being thrown against the outer wall a. The latter which is subject to wear may be provided with replaceable plates. A small portion of gas containing light particles byepasses the grating through a duct 8 and a cyclone separator 9 which delivers into the main stream in a chimney 6.
Patent GB-958314-A (GB)
Title: Continuous sheet extrusion apparatus
IPC: B29C48/08
Filed: 1962-02-26
Abstract: 958,314. Sheet extrusion presses. W. S. SHAMBAN & CO. Feb. 26, 1962 [March 14. 1961], No. 7433/62. Heading B5A. [Also in Division G3] A die for the extrusion of sheet material includes a wide wall for confining the fluid mass being extruded under pressure, and provided with means to apply a force to counteract the tendency of the wide wall to bow outwardly. The die comprises a passage structure 20 providing successive upper heating zones A and B, and lower cooling zones C and D. Material is forced in successive increments into the forming passages 20 by a reciprocating ram 30. In the upper heating zones A and B the die passage is formed between thick metal side plates 22. Heating elements 32, 36 are mounted on thick aluminium plates 34, 38 mounted on corresponding side plates 22, the temperature being controlled through thermocouples 35, 40. To resist the tendency for the side plates 22 to bow outwardly, anti-deflection plates 50 are mounted on each of the side plates 22 at the entrance to passage 20 and connected to side plates 22 at their inner edges. The temperature along the inner edge of each plate 50 may be controlled by directing cooling fluid through a tube 54 releasably fitted along that edge, and along the outer edge by cooling means 55 in the form of a zig-zag channel through a plate abutting against anti-deflection plates 50, or heating means 56. The lower cooling zones C and D are formed from a pair of heavy side plates 44, stage C maintaining the temperature in passage 20 substantially lower than in zones A and B, and higher than room temperature, has heating elements 45 and a pair of thermocouples 46 to control this temperature. In an alternative embodiment of the invention the resistance to outwardly bowing of the side plates 22 is created by an hydraulic system of cylinders and pistons acting on transverse pressure members reinforcing corresponding sides of side plates 22.
Patent GB-721695-A (GB)
Title: Improvements in and relating to reciprocating pumps
IPC: F04B53/16
Filed: 1952-03-24
Abstract: 721,695. Pistons. DAVIS, C. F. Feb. 17, 1953 [March 24, 1952], No. 7466/52. Class 122 (1). [Also in Group XXVIII] A plunger 15 in a reciprocating pump has a portion of reduced diameter extending to its working face and carries a tightly fitting sleeve 17 detachably or non-detachably retained on said reduced portion, the outer surface of the sleeve bearing in a stationary sealing ring 18 of synthetic rubber or similar sealing material. The sealing ring may be U-shaped in crosssection and the Specification lists non-metallic and metallic materials from which the sleeve may be made. Alternatively, the sleeve may be built up on the reduced portion by electroplating or spray welding or similar processes.
Patent GB-800158-A (GB)
Title: Process for the production of hydrocyanic acid from formamide
IPC: C01C3/02
Filed: 1956-03-09
Abstract: Hydrogen cyanide is produced by the catalytic decomposition of vaporized formamide produced by passing liquid formamide as a thin film down the internal walls of an externally heated evaporation tube, evaporation being assisted by the presence of one or more vanes rotating at high speed within the vessel near the surface of the film.  The liquid formamide may have an extended period of stay in the tube, e.g. 5-60 seconds.  Vaporization may take place under reduced pressure, e.g. 130-150 mm. of mercury, at a temperature of 120-160 DEG  C. or in an atmosphere of ammonia, e.g. preheated to 250 DEG  C., at a temperature of e.g. 180-205 DEG  C., or alternatively, the formamide may be vaporized first and the mixed with gaseous ammonia, which is if necessary preheated.  A proportion of the formamide preferably is passed right through the evaporator, e.g. 4 per cent of that vaporized, is cooled, a portion or the whole thereof is purified by filtration, centrifugation or adsorption, and is thereafter recycled to the evaporator.  The condensate produced by cooling the reaction product gas, which consists mainly of formamide, may be similarly purified and recycled to the evaporator. Polymerization of hydrogen cyanide contained in the formamide being recycled may be prevented by adjusting the pH to 5-7.  The catalyst may form the wall of the reaction vessel and may e.g. be of steel coated with a thin layer of Fe3O4.  A vessel of similar material may be used for preheating and partial catalytic decomposition of the formamide vapour.  The catalyst may also be aluminium phosphate supported on kaolin.  Catalyst activity may be increased by injecting phosphoric acid, an iron salt, or air into the formamide vapour before catalytic decomposition.
Patent GB-514239-A (GB)
Title: Method of making relief printing formes, sign plates and the like from synthetic resin by stamping
IPC: B41C3/06
Filed: 1939-03-08
Abstract: 514,239. Synthetic resin articles. KLINGENBURG, F. March 8, 1939 No. 7546. Drawings to Specification. [Class 2 (iii)] [Also in Group XVI] A plate of synthetic resin, consisting of phenol, urea or vinyl resin and carbolic acid, which will swell in a hot liquid is used for making relief-printing plates, sign plates, &c. The text matter is impressed in the plate, the surface parts surrounding the impressed matter are ground off and the plate is then swollen in hot liquid until the text matter stands in relief. The plate may be bent round a printing cylinder and used for printing textiles or wallpaper.
Patent GB-1152766-A (GB)
Title: Hydrogenation Process
IPC: C07C31/18
Filed: 1967-02-16
Abstract: 1,152,766. Liquid-phase catalysis. MELLEBEZONS. 16 Feb., 1967 [10 March, 1966], No. 7555/67. Heading B1F. [Also in Division C2] Compounds to be hydrogenated and an excess of hydrogen from 3 to 6 times as large as the hydrogen consumption during the same time or, otherwise expressed, from 4 to 10 cubic metres/hour/sq. decimetre of horizontal cross section of the bath are introduced into a reactor 1 containing a bath of liquid medium of dispersed hydrogenation catalyst. The bath has a fixed level 3 surmounted by a free space for separated hydrogen and comprises an inert solvent for compound(s) to be hydrogenated and the product(s) of hydrogenation which solvent has a boiling temperature above the reaction temperature and may be the compounds in or products of the hydrogenation. The bath is of great height compared with its other dimensions and the compounds to be hydrogenated are introduced at 7 in the lower part of the bath. The hydrogen stream introduced at 4 emulsifies in the liquid medium and is removed at 13 for recycle. An amount of liquid is continuously withdrawn at 9, decanted in 10, the catalyst slurry is returned at 11, the products of the reaction are separated and the solvent recovered is returned to the bath at 11. The fixed level is maintained by returning and adding liquid to compensate for that withdrawn.
Patent GB-925264-A (GB)
Title: Improvements in or relating to folding chairs
Inventor: MARTIN HENRY SAVILLE
IPC: A47C4/50
Filed: 1961-03-02
Abstract: 925,264. Adjustable chairs. HOME-EASE Ltd. March 2, 1962 [March 2, 1961], No. 7623/61. Class 52 (2). A folding chair comprises a seat frame 15 and a back frame 10 pivoted together at 22 (Fig. 1) and having a pair of arm-rests 28 which incorporate means for adjusting the angle between the frames. Each arm-rest is pivotally connected to the frame 15 at 34 and adjustably connected to the frame 10 by means of a projection 37 on the frame 10 engaging in any one of a number of notches 36 forming part of a closed slot 35. The fabric seat surface 13 is stitched at one end around an upper cross-bar 11 of the frame 10 and at the other end has a pair of pockets 42 which receive the ends 27 of the seat frame 15.
Patent GB-791842-A (GB)
Title: Improvements in bituminous bonding compounds
IPC: C08K5/20
Filed: 1956-03-12
Abstract: The invention comprises acylated tris-(aminoalkyl)-amines corresponding to one of the formul : <FORM:0791842/IV (b)/1> wherein one or more of the basic N atoms may be combined as a salt with RCOOH; A represents the same or different aliphatic hydrocarbon residue of 2-6 carbon atoms and RCO represents the residue of the same or different acid of 2-20 carbon atoms; at least one of the acylating acids and at least one of the saltforming acids has 10-20 carbon atoms.  The compounds are made by mixing the tris-(aminoalkyl)-amine with the appropriate number of mols. of acid or acids (or halides or esters thereof) and heating sufficiently to effect partial or complete amide formation.  Alternatively the amide may be prepared first and the saltforming acid added later.  Examples show the preparation of (1) oleic acid salt of N-(2-linoleoylaminoethyl) - N - (2 - linoleoylamino - isopropyl) - N - (6 - linoleoylamino - hexyl) - amine; (2) N : N - bis - (2 - aminoethyl) - N - (2 - palmitoylaminoethyl) - amine and its disalt with tall oil acid; and (3) the amine of (1) tri-acylated with oleic, linoleic and palmitic acids.  Other products are mentioned in which the amine of (1) or tris-(3-aminopropyl)-amine is reacted with oleic, palmitic, linoleic, acetic, butyric or stearic acid or mixtures of these.  Other suitable amines are tris-(2-amino-isopropyl) - amine, tris - (6 - aminohexyl) - amine and N - (2 - aminoethyl) - N - (3 - aminopropyl)-N - (6 - aminohexyl) - amine.  Other suitable acids are linolenic, lauric, abietic, naphthenic, hexanoic, 2-ethylhexanoic, caprylic, 2-ethylbutyric, benzoic and toluic.ALSO:Bituminous compositions contain as thermally stable bonding agent an acylated tris-(amino-alkyl)-amine corresponding to one of the formulae R-CO-NH-A-N(-A-NH2)2, (R-CO-NH-A)2N-A-NH2 and (R-CO-NH-A)3N wherein one or more of the basic N atoms may be combined as a salt with RCOOH; A represents the same or different aliphatic hydrocarbon residue of 2-6 carbon atoms and RCO represents the residue of the same or different acid of 2-20 carbon atoms; at least one of the acylating acids and at least one of the salt-forming acids has 10-20 carbon atoms.  The compounds are incorporated in asphalt to the extent of 0,1-5 per cent by weight and it is possible that some of the N atoms may react with the naphthenic acids present in the asphalt.  Specified compounds are (1) the oleic acid salt of N-(2-linoleoylaminoethyl)-N-(2-linoleoylamino - isopropyl) - N - (6- linoleoyl - aminohexyl) - amine; (2) the amine of (1) triacylated with oleic, linoleic and palmitic acids; (3) N : N - bis - (2 - aminoethyl) - N - (2 - palmitoylaminoethyl) - amine and its di - salt with tall oil acid.  Other suitable amines and acids are mentioned.
Patent GB-1477422-A (GB)
Title: Material handling vehicle
IPC: B60G13/10
Filed: 1975-02-24
Abstract: 1477422 Vehicle suspension J I CASE CO 24 Feb 1975 [15 May 1974] 7634/75 Heading B7D In a materials handling vehicle comprising a backhoe carried at the rear end of a tractor having steerable wheels 22 mounted on a front axle 24 which is connected to the tractor body 14 so as to be pivotable about a horizontal axis extending longitudinally of the tractor, a pressurized pneumatic shock absorber 40 is connected between the body 14 and the front axle 24 on one side of the vehicle for maintaining a continuous downward bias on one front wheel 22. This helps to maintain the one front wheel in contact with the ground if the vehicle oscillates about its rear axle when driven at high speed between construction sites. The shock absorber 40 is charged with compressed air through a valve 68 to exert the required downwards force on the axle 24, and includes chambers 52, 60 between which air flows through restricted openings 64. The vehicle shown carries a front end loader in addition to the backhoe.
Patent GB-609347-A (GB)
Title: Improvements in or relating to iron cored high frequency coils
IPC: H03H7/01
Filed: 1946-03-12
Abstract: 609,347. Inductances and transformers. KAMMER, F., and PLESSEY CO., Ltd. March 12, 1946, No. 7637. [Class 38 (ii)] A high-frequency inductance comprises a hollow powdered iron core in which is located a coil through which passes a slidable magnetic core, the hollow core having a pressed insulating panel fixed at one end, and being closed by a cover at the other. A transformer may be made from two such inductances as shown in Fig. 1. Each inductance comprises a hollow core 1 with a bore having at one end 2a a larger diameter where a coil 11 is located and at the other end 2 a smaller diameter where the movable powdered iron slug 5 moves. An insulating panel 3, which carries a bush 4 in which an extension of the slug 5 moves, is fixed to the upper end of the hollow core 1, the lower end of which is closed by the spigotted cover 7 on which the coil 11 is pressed. An insulating washer 13 between the two covers 7 separates the inductance structures which are mounted in a can 17. The coil ends are taken out through holes in the covers 7 to two pairs of conductors 15, 15a mounted in the lower panel 3, across which condensers 16, 16a are also connected.
Patent GB-635280-A (GB)
Title: Production of mono-chlor-alpha-chlorethylbenzene
IPC: C07C17/12
Filed: 1947-03-20
Abstract: Alphachlorethylbenzene is treated with chlorine in the presence of at least 0.8 per cent of iodine as catalyst at 30 DEG  C. or below, whereby the main product is a nuclear mono-chloroalphachlorethyl-benzene.  The proportion of chlorine reacting by addition instead of substitution is reduced by increasing the iodine concentration (2 per cent specified), and the formation of styrene dichloride is minimized by introducing the chlorine at 0 DEG C. at a rate not exceeding one mol. per hour per 7 mols. of alphachlorethylbenzene with efficient agitation of the mixture. After the completion of the reaction, the excess free iodine is removed, e.g. by shaking with alkali hydroxide or thiosulphate solution, and the combined iodine liberated by successive treatment with chlorine and alkali thiosulphate.  The product is then fractionally distilled under reduced pressure to give a pure monochlor-alphachlorethylbenzene.  The latter may be used for the preparation of nuclear chlor-styrene by dehydrochlorination with a tertiary base or hydrolysis to alpha-(chlorphenyl)-ether alcohol and dehydration of the latter. The chlor-styrene is stated to polymerize more readily when the process of the invention is carried out at lower temperatures (0 DEG  C. as in example 2) than at higher temperatures (20 DEG  C. as in example 1).  The iodine catalyst may be added directly or it may be formed in situ by the action of the chlorine on an iodine-containing substance, e.g. iodoform, sodium or potassium iodide.  Specification 605,284 is referred to.
Patent GB-145095-A (GB)
Title: Improvements in starting devices for internal combustion engines
Filed: 1918-05-08
Abstract: 145,095. Imray, 0., (Bosch Akt.-Ges., R.). May 8, 1918. Turning-gear.-In an electric starter in which the armature of the starting-motor is displaced axially to bring a pinion d into mesh with an engine member e, a main switch h leads current to the field coils b, the armature being in a branch circuit, and a second switch sending full current to the armature is afterwards closed automatically by a timing-device. In the form shown in Fig. 1, the main switch h is closed by means of a push k and coil i and supplies current to the field coils through a conductor l, a resistance w, one side of a switch n, and a conductor z<1>. A second conductor z<2> supplies both the armature and the field coils. The main switch h is connected by a spring 20 to a dashpot piston 21, which after a time moves sufficiently to close contacts 23, 24 in the circuit of a coil q. This moves the switch n from contacts o<1>, o<2> to contacts m<1>, m<2>, so that full current is supplied to the armature. When the main switch is closed, a trembler may be excited which supplies high-frequency current to the primary coil of the magneto. In a modification, Fig. 2, the main switch h is closed by a push k and an electromagnet m<1>, which separates contacts n<1>, o<1> so that part of the current passes through a resistance w and a conductor z<2> to the armature and field coils, the remainder passing by contacts r<1>, t<1> to the field coils. The contacts o<1>, r1 are carried by the piston p<1> of an air cataract, so that after a time the contacts n<1>, o<1> are closed and the contacts r<1>, t<1> separated, and full current is supplied through the conductor z<2> to the armature and field coils. When the conductor k has been released, the springe y after a time raises the piston p<1> and opens the main switch h.