baber/WOPTO huggingface dataset:
Patent GB-1335076-A (GB)
Title: Sub-caliber projectile
IPC: F42B14/02
Filed: 1971-04-19
Abstract: 1335076 Sabot projectiles SPACE RESEARCH CORP 19 April 1971 [12 March 1970] 23995/71 Heading F3A A projectile assembly comprises a projectile 1 and a sabot 4 having a plurality of separate arcuate segments secured in place around the projectile by a driving band 7. The segments intermesh both with the driving band and the projectile such that thrust and spin are imparted to the projectile upon firing from a gun. The driving band is adapted to break under the action of centrifugal force when the projectile assembly leaves the gun so as to enable the segments to separate from the projectile. The intermeshing surfaces between the segments and the projectile are formed by screw threads 8 and keys 11 located in opposed apertures in the segments and projectile. A sabot of the same kind may be provided at the front of the projectile or a simpler sabot 5, from which the keys 11 are omitted, may be provided for barrelguidance purposes. An obturator 15 is adapted to drop away from the projectile in flight. In another embodiment, Fig. 7 (not shown), the forward sabot is formed with perforations.
Patent GB-599461-A (GB)
Title: Improvements relating to load-carrying and releasing devices
IPC: B64D17/38
Filed: 1945-09-17
Abstract: 599,461. Fastenings ; hooks. MALCOLM, Ltd., and LOBELLE. M..J. O. Sept. 17, 1945, No.. 24003. [Classes 44 and 89 (ii)] [Also in Groups XXX and XXXIII] A load-carrying and releasing device used. for example, for connecting a parachute to a load and for releasing the load when it becomes water-borne, comprises a movable member for carrying the load, a pair of arms hinged together like a pair of shears with a spring tending to draw them together, a fixed pivotal support for one of the arms, a fixed support adapted to be engaged by a hook portion on the other arm, and inter-engaging surfaces on one arm and on the said movable member which remain in engagement when the movable member is in its load-engaging position only so long as the weight of the load is sufficient to keep the spring between the arms extended. In the embodiment shown, the device comprises arms 10, 11 pivotally connected at 12 and drawn towards one another by a spring 19, the arm 11 being pivotally mounted at 21 between a pair of side plates 8 and the arm 10 supported by a lug 15 on a pin 16 extending between these plates. The load is connected to the device by a claw 6 pivotally mounted on a stud 7 and engaging a notch 14 in the arm 10, the arm being locked in this position by a latch 24 secured against the arm 11 by a pin 26 engaging in a guide 27. If the load is discharged with a parachute cord connected to the shackle 22, on the parachute opening a heavier pull is gradually exerted on the device. When the pin 26 is automatically released by a cord attached to it and to an extensible connector on the parachute, the weight of the load will hold the arms 10, 11 in the position shown with the spring 19 extended. If the load is now deposited, the pull on the parachute cord is relieved, the arm 10 is pivoted by the spring 19, the arm 11 turns about its pivot 21 to raise the pivot 12 so as to discharge the hook 15 from the pin 16 and release the claw 6 to disconnect the load. Fig. 4 shows a modification in which the latch is held in position by a stop pin 36 working in a guide 37 and supported by an arm 38 on a stem 39 slidably mounted in a guide 48. This stem is normally pressed upwards by a spring 47, but may be depressed to release the latch 24 by the plunger 43 of a time-release device 40. The plunger 43 is held in a raised position against the action of a spring by a setting pin 49 engaging in one of a number of holes in an extension 43a of the plunger. The setting pin is connected by a cord to the parachute and withdrawn from the extension 43a when the parachute opens or when the load is taken by the parachute, allowing the plunger to fall under the control of a clockwork mechanism.
Patent GB-388800-A (GB)
Title: Improvements in or relating to locks suitable for use in entrances to lift shafts
IPC: E05B65/00
Filed: 1931-08-26
Abstract: 388,800. Operating and locking lift cages and doors. MARRYAT & SCOTT, Ltd., 75, Clerkenwell Road, London, SCOTT, M. D., Denholme, Windmill Hill, Enfield, Middlesex, and SNEWIN, A. H., 82, Taylor Road, Wallington, Surrey. Aug. 26, 1931, No. 24040. [Class 78 (iii).] Relates to locks for lift-well doors wherein a mechanical interlock prevents operation of the lift control unless the door is locked, the lock comprising main and auxiliary bolts so interconnected that when the main bolt is withdrawn to the unlocking position, the auxiliary bolt is shot out, into a position to which it cannot move when the door is shut, by a stop which is withdrawn when the lift cage is opposite a landing. According to the invention, the stop is free to move sideways, even when the cage is not opposite a landing, so as to accommodate the swinging-in movement of the auxiliary bolt as the door closes. As applied to a hinging door the lock comprises tubular bolts 3, 4, interconnected by a lever 10 which is fixed to the door handle and engages balls 11. When the door is closed, the beak 5 of the bolt 3, projected to its locking position by a spring 7, engages a slot 51 in a casing 1, secured to the lift well, withdrawal of the bolt normally being prevented by a stop 15 on an arm 14 of a lever (not shown) extending outside the casing, obstructing the passage of the beak 8 through a slot 8<1> extending through the front and side wall of the casing. When the cage approaches a landing, a cam on the cage engages a roller on the lever extending from the casing and displaces the stop 15 to permit opening of the door. Simultaneous with the withdrawal of the beak 5 from the casing, a lever 19, provided with an adjustable head 21 engaging the beak, falls against a shoulder 26, thereby opening contacts 23, 24 in the lift circuit. In the event of the door being closed when the cage is not at a landing, the beak 5 moving in the direction of the arrow A, Fig. 4, engages a plate 12 so as to project the beak 8 outwardly and displace the stop 15 rearwardly, as above. As the closing movement of the door is completed, the beak 5 moves into the slot 5<1> and the beak 8 is retracted, thus enabling the stop 15 to be returned by a spring 18. A plate 27 prevents tampering with the lock when the door is closed. The stop 15 may be formed with one or more notches.
Patent GB-1014716-A (GB)
Title: Polymerisation process
IPC: C08G2/10
Filed: 1964-06-10
Abstract: Particulate trioxane is compressed under a pressure of at least 500 lb/square inch to form a sheet, the sheet irradiated with high energy ionising irradiation to form active polymerisation sites, and the sheet treated without melting to above 30 DEG  C. to polymerize the trioxane to polyoxymethylene.  Unpolymerized trioxane may be separated from the polyoxymethylene by extraction with water and the polyoxymethylene ground to fibres with a major dimension of less than 50 microns and a length to thickness ratio greater than 10 to 1.
Patent GB-444751-A (GB)
Title: Improvements relating to settings of retorts for use in the distillation of solid carbonaceous substances
IPC: C10B21/10
Filed: 1934-08-21
Abstract: 444,751. Vertical retort furnaces. LOW TEMPERATURE CARBONISATION, Ltd., BRISTOW, W. A., and POSTLETHWAITE, J. P., 28, Grosvenor Place, London. Aug. 21, 1934, No. 24117. [Class 51 (ii)] In a vertical retort setting in which pairs of combustion chambers are provided between adjacent retort-containing chambers, as described, e.g. in Specification 301,361, all the combustion chambers, or the combustion chambers of selected pairs, have independently - controlled supplies of fuel gas. By this means the heating of groups of retorts which are charged and discharged simultaneously, can be controlled independently in accordance with requirements determined by the cycle of operations. If, for example, the retorts are operated in pairs, the pairs of combustion chambers between the second and third, and fourth and fifth retortcontaining chambers, and so on, would have independently controlled gas supplies. In the construction shown applied to a setting as described in Specifications 299,795 and 301,361, [both in Class 51 (ii)], the wall a<4> between the two combustion chambers a, and the walls a<3> of the retort-containing chambers are supported on gas conduits 1, 2 mounted in a channelled substructure 3, in which is an air passage 9. The conduits are formed of hollow blocks spigotted together, and are spaced apart to provide an air equalizing passage 7 connected to the combustion chambers by ports 12 having inclined top faces 13.
Patent GB-234357-A (GB)
Title: Cigarette package
IPC: B65D85/10
Filed: 1924-10-13
Abstract: 234,357. Hodgson, H. E. Oct. 13, 1924. Boxes formed of separate bodies combined in tiers; matches, boxes specially designed for.-A cigarette packet or case has provided in one of its outer walls an open-ended pocket to receive a book of paper matches. As applied to a case with a hinged lid, the pocket is formed by slitting the lid 3 so that a section 6 can be lifted to receive the book 8, the inner wall of the pocket being formed by a sheet of paper applied to the inside of the lid. In lined packets the outer covering is slit in the same manner, the match book being arranged between the lining and the lifted section of the outer covering.
Patent GB-756867-A (GB)
Title: A new or improved means for securing blankets to the impression cylinders of printing machines
Inventor: PHYTHIAN THOMAS EWART
IPC: B41F27/12
Filed: 1953-09-02
Abstract: 756,867. Printing machines. CRABTREE & SONS, Ltd., R. W. Aug. 24, 1954 [Sept. 2, 1953], No. 24275/53. Class 100 (2). A blanket 8 is attached to an impression cylinder 1 by attachment bars 7, Fig. 1, secured to the ends of the blanket and adapted for engagement with a pair of shaped recesses 6 formed longitudinally of a tensioning bar 4 accommodated in a slot 2 in the cylinder and rotatable to tension the blanket. As shown, in Fig. 4, the recesses 6 are formed with parallel surfaces 9, 10 and a surface 11 disposed at an angle to them. The attachment bars 7 consist of shaped strips 12, 13 drawn together by screws 14 so as to grip the end of the blanket 8 between them. The bar 7 has sloping surfaces engaging the surfaces 9, 10 and 11 so as to be held in position by the tension of the blanket. In the form of Fig. 1, both ends of the blanket are connected to the tensioning bar 4 so that rotation of the bar draws the ends into the slot 2 and tightens the blanket around the surface of the cylinder. In the form of Fig. 5 the attachment bar 7 at one end is held in a recess 6<SP>1</SP> of similar shape, formed in the wall of slot 2 and the bar at the other end is received in one of the recesses 6 in tensioning bar 4 as above. Rotation of the bar 4 then draws one end of the blanket into the slot and thereby effects tensioning. The cylinder is adapted for rotation in both directions by the provision of another slot 6<SP>1</SP> in the wall of the slot 2, the bars 7 being changed over before the direction of rotation is reversed. The bar 4 is mounted in bearings at the ends of the cylinders and carries a worm-wheel at one or the other or both ends. The bar is rotated by a self-locking worm co-operating with the worm-wheel.
Patent GB-705652-A (GB)
Title: Manufacture of 3-aminopropane compounds
IPC: C07D409/06
Filed: 1950-09-19
Abstract: The invention comprises compounds of the general formula R1 R2 CH-CH2-CH2 -N(R3)2 in which R1 and R2 represent a substituted or unsubstituted aromatic or heterocyclic radical and at least one of R1 and R2 represents an indolyl radical and R3 represents hydrogen or a methyl group, and salts of such compounds.  They are obtained by reacting an organo-magnesium halide of the formula R1-Mg-halogen with an a -cyano-acrylic acid alkyl ester of the formula R2-CH=C (CN)-COO alkyl to form a b :b -disubstituted a -cyano-propionic acid ester containing an indolyl radical as at least one of the b -substituents, converting the ester by hydrolysis and decarboxylation into the corresponding nitrile, hydrogenating the nitrile to the amine, and if desired, methylating the amine.  As starting materials are mentioned a -cyano-acrylic acid ethyl esters containing in the b -position a thienyl-(2)-, furyl-(2)-, pyridyl-(2)- or (3)-, quinolyl-(2) or (4)-, quinoxalyl -(2)-, indolyl -(3)-, 2-methylindolyl-(3)-, N-methyl-triazolyl-(2)-, p  N-methylpyrrole-(2)-, phenyl-, fluorophenyl-, chlorophenyl-, iodophenyl-, p-anisyl-, or a naphthyl -(1) or (2)-radical. Organo-magnesium halides are mentioned in which the organic radical is a phenyl, b -indolyl-, p-chlorophenyl-, p-fluorophenyl-, p-anisyl-, naphthyl -(1) or (2)-, 4-fluoronaphthyl -(1)-, 4-methoxy-naphthyl -(1)-, 2-methyl -b - indolyl or an a - thienyl radical.  Methylation may be effected by reaction with formaldehyde and formic acid or by concurrent catalytic hydrogenation and reaction with formaldehyde. In examples (1) a -cyano-cinnamic acid methyl ester is reacted with b -indolyl magnesium bromide to give a -cyano-b -phenyl-b - [indolyl- (3)] -propio-nitrile and the latter is hydrogenated to 1-phenyl- 1- indolyl -b - propylamine -(3); a similar process to (1), using b -2-methyl -indolyl magnesium bromide yields 1-phenyl -1- [(21)-methyl-indolyl -(31)] -3- aminopropane hydrochloride; (3) a - cyanom-methoxycinnamic acid methyl ester and b - 2- methyl-indolyl magnesium bromide are reacted and worked up as in (1) to give b -2- methyl -indolyl -b -m-methoxyphenylpropionitrile, which is reduced to 1- (m-methoxyphenyl) -1- (21-methylindolyl)-3-aminopropane hydrochloride; (4) a - cyano -b - thienylacrylic acid methyl ester and b - 2- methylindolyl magnesium bromide are reacted to give a - cyano -b -thienyl -b - 2-methylindolyl propionic acid methyl ester which is hydrolysed with sodium hydroxide and the product decarboxylated by heating in quinoline to give b - 2-methylindolyl -b - thienyl propionitrile, which on reduction gives 1- thienyl- 1- (21- methyl) -indolyl -3-aminopropane hydrochloride.  Specification 646,198 (as open to public inspection under Sect. 91) is referred to.
Patent GB-443030-A (GB)
Title: Improvements in clothes washing and similar boilers
IPC: D06F1/00
Filed: 1934-08-24
Abstract: 443,030. Washing-boilers. VERITYS, Ltd., and THORPE, F. W., Plume & Victoria Works, Aston, Birmingham. Aug. 24, 1934, No. 24382. [Class 64 (i)] A washing or similar boiler has a removable invertible lid 4 of shallow tray form with a rim of two diameters joined by a rounded shoulder 8, one diameter 6 fitting closely over the top of the boiler so that a flat top is obtained, and the other diameter 6 fitting fluid-tight within the boiler to form a tray. Two hinged hooked handles 9 are provided on the lid, one hook engaging over the side of the boiler to support the tray outside the boiler.
Patent GB-356433-A (GB)
Title: Improvements in connection with the heating of buildings
IPC: F24D3/14
Filed: 1930-08-15
Abstract: 356,433. Radiators for heating buildings. CRITTALL, R. G., 43, Bloomsbury Square, London, CRITTALL, W. F., CRITTALL MANUFACTURING CO., Ltd., Manor Works, Braintree, Essex, and CRITTALL & CO., Ltd., R., 43, Bloomsbury Square, London. Aug. 15, 1930, No. 24538. [Class 64 (ii).] In a system for heating buildings constructed with metallic window frames, some or all of the frames B have a radiator A enclosed in a metallic casing b<3> arranged under the window sill b<1>, and the flow and return pipes a<1> connected to the radiator located in cavities b<5> formed between the window jambs b<2> and the structural part of the building D. The pipes pass from floor to floor of the building on either side of the window respectively. The cavities b<5> may be enlargements of the spaces in which the balance weights of the window sashes operate. Contact between the pipes and the metal structure or jambs may be made by surrounding the pipes with metallic shavings, or by a coiled spring or by metallic clips.
Patent GB-239725-A (GB)
Title: Improvements in electric motor control gear
IPC: B60L15/34
Filed: 1924-10-16
Abstract: 239,725. English Electric Co., Ltd., and Bremner, F. D. H. Oct. 16, 1924. Master control systems; controllers with checking devies actuated by the motor current. - A device for temporarily suspending the action of a currentlimit check in order to allow a traction motor to be accelerated under overload, comprises a driver's advance switch 5 which puts in a winding 4 in opposition to the usual overload winding 10 and an additional relay 2 which acts to break the advance connection immediately after the current-limit contact member 6 has moved to its advance position. The advance connection remains broken across the gap 3 until the driver's advance switch is opened.
Patent GB-1579559-A (GB)
Title: Electrical heating element
IPC: H05B3/20
Filed: 1977-06-13
Abstract: The heating element, intended in particular for the heating of large heating areas, has an inner, electrically conducting layer (2), containing electrodes (3), and outer, electrically non-conducting layers (1). To achieve a greater stability of the characteristic electrical values and a high mechanical strength of the heating element, the electrodes (3) are arranged in the electrically conducting layer (2), which consists at least of a polyester resin composition containing at most 10% by weight of carbon black, referred to the amount of polyester resin, in the form of a metal network or carbon-fibre network or of a perforated metal foil in the same form as the heating element. The electrically conducting layer (2) and the insulating layers (1) are reinforced with glass fibres (4). <IMAGE>
Patent GB-838824-A (GB)
Title: Foamed articles from high molecular weight thermoplastic polycarbonates
IPC: C08J9/04
Filed: 1957-08-02
Abstract: The invention comprises foamed materials made from high molecular weight thermoplastic polycarbonates derived at least in part from a dihydric phenol.  The foams may be made by (a) firstly incorporating into the polycarbonate melt under pressure a vaporizable organic liquid (e.g. pentane, cyclohexane, ligroin or petroleum ether), an inert gas (e.g. nitrogen or carbon dioxide), or a compound which splits off nitrogen or carbon dioxide (e.g. an ester of pyrocarbonic acid), (b) secondly, allowing the melt to cool to produce a block of the polycarbonate containing the blowing agent and (c) lastly, heating this block, or a granulate obtained from it, in an open or closed mould under atmospheric pressure to obtain a foam. Alternatively (Example 7), the foam may be made by heating a mixture of polycarbonate granules and pyrocarbonic acid diethyl ester in an extruder adapted to provide increasing compression, whereby a polycarbonate melt is obtained containing dissolved carbon dioxide, and thereafter extruding the melt to produce tapes of foamed polycarbonate.  Foams not produced in a closed mould may be given a coherent outer skin by a heat treatment.  The polycarbonate used may be produced as described in Specifications 772,627, 808,485, 808,486, 808,487 or 808,489. The polycarbonate used in the examples is that of 2,2-(4,41-dihydroxydiphenyl)-propane.ALSO:The invention comprises foamed materials made from high molecular weight thermoplastic polycarbonates.  The foams may be made by (a) firstly, incorporating into the polycarbonate melt under pressure a vaporizable organic liquid (e.g. pentune, cyclohexane, ligroin or petroleum ether), an inert gas (e.g. nitrogen or carbon dioxide), or a compound which splits off nitrogen or carbon dioxide (e.g. an ester of pyrocarbonic acid), (b) secondly, allowing the melt to cool to produce a block of the polycarbonate containing the blowing agent, and (c) lastly, heating this block, or a granulate obtained from it, is an open or closed mould under atmospheric pressure to obtain a foam. Alternatively (Ex. 7) the foam may be made by heating a mixture of polycarbonate granules and pyrocarbonic acid diethyl ester in an extruder adapted to provide increasing compression, whereby a polycarbonate melt is obtained containing dissolved carbon dioxide, and thereafter extruding the melt to produce ropes of foamed polycarbonate.  Foam not produced in a closed mould may be given a coherent outer skin by a heat treatment.  The polycarbonate used is derived in part, from a dihydric phenol and may be produced as described in Specifications 772,627, 808,485, 808,486, 808,487, and 808,489.  The polycarbonate used in the example is that of 2, 2-(4, 41 dihydroxydiphenyl)-propane.
Patent GB-1459373-A (GB)
Title: Device for feeding bar-shaped work-pieces in machine tools  particularly lathes
IPC: B23B13/08
Filed: 1975-06-09
Abstract: 1459373 Bar-stock feeding HAGENUK 9 June 1975 24639/75 Heading B3B A device for feeding bar-stock to machine tools, e.g. lathes, comprises a guide tube 4 held coaxially within a casing 8 by means of noise damping hoses 5-8 extending parallel to the guide tube, and is characterized in that the damping hoses have a closed cavity which is pressurized with a gaseous or liquid medium to fix the guide tube in the casing and which can be de-pressurized in order to remove the guide tube from the casing. A pump supplies pressure medium to the hoses through a control valve, and a pressure switch prevents operation of the lathe until the guide tube is gripped by a sufficient pressure. Where the guide tube and casing are pivotally operable along their length to allow feed access of bars 23 from a feed shoot 22, the damping hoses 5 and 6, and 7 and 8, are controlled separately through control valves. The feed shoot 22 is actuated by a solenoid 24 to raise push rods 31 to lift a bar 23 over an edge 32. The pivoting open of the top half of the casing and guide tube occurs with the operation of the push rods 31 by means of linkage 25, 34, 35. The damping action of the hoses prevents propagation of noise, and can be adapted to requirements by varying the pressure or the medium used.
Patent GB-713019-A (GB)
Title: Improvements in or relating to shock-absorbing devices
IPC: B65D81/07
Filed: 1951-10-23
Abstract: 713,019. Resilient supports for seats. ROSS, H. A., and METALPACKS, Ltd. Oct. 17, 1952 [Oct. 23, 1951], No. 24698/51. Class 52(1) [Also in Groups XVII, XXV and XXXII] A shock-absorbing device comprises two plates a, a<SP>1</SP> spaced apart by springs f and provided with inwardly-directed spring- locating bosses d, the plates a, a<SP>1</SP> being held together to pre-load the spring f, by ties g which engage apertures e in the plates. The ties are secured by mutuallyengaging hooked ends which are locked by idented ferrules h. Additional springs i, abutting plates j, may be provided. The plates j may be held together by the wires g or by separate wires, or (as shown) by ties k having nipples l. The plates a, a' may be aluminium pressings and may be curved longitudinally or transversely to suit the shape of containers for fragile contents such as radio sets. The invention may also be applied to seats of vehicles. An assemblage of the devices may be formed by bolting together at holes n. Means (not shown) may be provided for minimizing wear of the wires g in the neighbourhood of the holes e. The springs f are normally precompressed to half their unstressed length.