baber/WOPTO huggingface dataset:
Patent GB-765047-A (GB)
Title: Heterocyclic nitrogen compounds and methods for obtaining the same
Filed: 1955-03-21
Abstract: The invention comprises compounds of the general formula <FORM:0765047/IV(b)/1> where in R1 is an alkyl or hydroxyalkyl radical containing at most 10 carbon atoms and R2 is such a radical or hydrogen or R1 and R2 together with -N < form a saturated heterocyclic radical, R3 is hydrogen, methyl or ethyl and Y is a divalent alkylene group containing from 2 to 5 carbon atoms, and acid addition salts thereof; and their preparation by condensing 5-chloro-8-quinolinol with formaldehyde and an amine R3HNYNR1R2 or an acid addition salt thereof or with the product obtained by first condensing said amine and formaldehyde and if desired, when the compound so obtained is a free base, reacting it with an acid to produce an acid addition salt.  The formaldehyde may be in any of the usual forms and the reaction is preferably carried out in an alcoholic solvent, with or without heating.  Salt forming acid referred to are hydrohalic acids, sulphuric, sulphamic, phosphoric, citric, acetic, tartaric, 3-hydroxy-2-naphthoic, 7-iodo-8 - hydroxy - quinoline - 5 - sulphonic and salicylic acids.  Examples describe the preparation of the following 5-chloro-8-quinolinols: 7 - (b  - dimethylaminoethylaminomethyl-, 7 - (b  - diethylaminoethylaminomethyl) -, 7-(g  - diethylaminopropylaminomethyl) -, 7-(g  - piperidinopropylaminomethyl) -, 7 - (o -piperidinoamylaminomethyl)-, 7-(g -heptylaminopropylaminomethyl)-, 7-(g -decylaminopropylaminomethyl)-, 7-(ethyl-b -hydroxyethylaminopropylaminomethyl)-, 7-(g -diethanolaminopropylaminomethyl)-, 7-(diethylaminoethylmethylaminomethyl)-, 7-(diethylaminopropylmethylaminomethyl)-, 7-(diethylaminoethylethylaminomethyl)-, 7-(diethylaminopropylethylaminomethyl)-, 7-(g -morpholinopropylaminomethyl)-, 7-(g -dimethylaminopropylaminomethyl)-, 7-(d -diethylamino-a -methylbutylaminomethyl)-, 7-(g -isopropylaminopropylaminomethyl)- and 7-(o -1-pyrrolidinylamylaminomethyl) - 5 - chloro - 8 - quinolinol, isolated as their hydrochlorides, and in the case of the 7 - (b  - diethylaminoethylaminomethyl)-compound also as its hydrobromide and phosphate.
Patent GB-584267-A (GB)
Title: Improvements relating to ammunition belt feed mechanisms for automatic guns
IPC: F41A9/54
Filed: 1944-05-02
Abstract: 584,267. Cartridge - feed mechanism. WAGHORNE, H. May 2, 1944, No. 8267. [Class 92 (ii)] A belt ammunition feed mechanism for automatic guns comprises a sprocket drum for advancing the ammunition and a device for stopping the firing of the gun, the said device being rendered effective after the last round of the belt has passed beyond means normally engaging the ammunition passing to the feed mechanism, so as to stop the gun before the said last round has passed on to the sprocket drum. In the construction shown, the cartridge belt passes through the feed entry 3 of a housing 1 which contains belt feed mechanism as described in Specification 584,268, the cartridges being fed to the gun through a mouth 7 and the links being ejected through a shoot 6. At one end of the housing is a rotatable cap 36 having finger ribs 41 whereby it may be rotated clockwise against the action of a spring, its rotational movement being limited by a fixed stop 35. Anticlockwise movement of the cap under the action of the spring is normally prevented by a spring- controlled pawl 33 mounted on a pivoted arm 30, the other end of which is connected to the lever 26 of toggle links 25, 26 of which lever 25 is pivoted to the housing 1. Within the feed entry 3 is mounted on a spindle 14 a shoe 13 which is urged downwards by a spring to engage the ammunition, the spindle being mounted on a bracket on a cover 16 hinged at 17. Outside the feed entry the spindle 14 carries an arm 23 fitted with a pin bearing a roller 24. When the last round of ammunition passes the end of shoe 13, the shoe falls and spindle 14 thereby rotates sufficiently to cause roller 24 to engage the toggle links thus moving lever 30 about its pivot and releasing the cap 36. The inside surface of the cap has a cam groove 44 engaged by a pin 45 on a plunger 46, and as the result the rotation of the cap resulting from the fall of shoe 13 causes the plunger 46 to fall into the path of the breech mechanism to prevent further firing. The opening of the cover 16 about its hinge pins 17 also prevents further firing, the means for this purpose comprising a lever 47 pivoted on the common pivot pin 29 of link 26 and lever 30 and embracing the common pin of links 26, 25. When the cover is lifted the spindle 14 passes upwards through an arcuate slot 21 in the wall 18 of the feed entry and engages the lever 47 causing the latter to rock and thereby actuate the toggle levers.
Patent GB-698457-A (GB)
Title: Improvements in internal shoe-drum brakes
IPC: F16D51/24
Filed: 1952-04-01
Abstract: 698,457. Internal shoe-drum brakes. TIMKEN-DETROIT AXLE CO. April 1, 1952 [Aug. 28, 1951], No. 8286/52. Class 103 (i). In an internal shoe-drum brake, the hydraulic actuator 20 spreads apart the upper ends of two levers 39, the lower ends of which abut against adjustable stop members 63. Pressure is transmitted from the levers 39 to shoes having integral webs 51 and rims 52 by means of central pressure plates 77. The shoes are carried on the levers 39 by means of bolts 44 which, as shown in Fig. 6, pass through oversize apertures in both the shoe webs 51 and the plates 39 and hold them against Hat radial surfaces 42 on losses or pads 41 formed in the brake back-plate 10. At their upper ends, the shoes 39 slidably abut inclined edges 55 on abutment plates 33 rigidly secured to the back-plate 10, the plates 33, as shown in Fig. 2, also acting as lateral guiding means for the levers 39. The lower ends of the shoes also abut against stop members 63, these stop members, as shown in Fig. 5, being adjustable from outside the back-plate by nuts 67. Brake release springs 59 and 72 extend between openings 61 in the shoe webs and abutment plate 33 and between opening 73 and a pair of spring clips 48 mounted on a part 45 pressed out of the back-plate. When the actuator 20 is energized to apply the brake, the upper ends of the levers 39 are spread apart and pivot about their lower ends to apply the shoes to the drum by thrust plates 77. According to the rotation of the drum, the shoes may slide up or down to some extent upon their arcuate end surfaces 55 and 75. The invention constitutes an improvement in the lever mechanism shown in U.S.A. Specification 2,435,955.
Patent GB-1455461-A (GB)
Title: Decorative laminates material handling appaat
IPC: D21H27/26
Filed: 1973-02-20
Abstract: 1455461 Decorative laminates WIGGINS TEAPE RESEARCH & DEVELOPMENT Ltd 1 Feb 1974 [20 Feb 1973] 8316/73 Heading B5N A decorative laminate is produced by bringing a decorative paper sheet impregnated with a thermosetting resin into face to face contact with a support which is also impregnated with thermosetting resin at least adjacent its surface in contact with the decorative paper sheet, the decorative surface of the sheet facing outwards, and applying heat and pressure, e.g. using stainless steel plates, to effect lamination by thermosetting of the resin, the decorative paper sheet having been prepared by coating an un-impregnated paper sheet with a coating mix containing a coloured pigment and a thermosetting resin, thereby to produce a decorative surface and to impregnate the sheet with thermosetting resin, and drying the coated paper. The coating mix, which may be applied to the paper using a reverse roll coating apparatus, may comprise, as thermosetting resin, melamine-formaldehyde resin, a mixture of urea-formaldehyde resin and melamine-formaldehyde resin, or unsaturated polyester resin, a diluent, e.g. water which may contain a solvent compatible with the thermosetting resin, e.g. ethyl alcohol, isopropyl alcohol or methylated spirits, which assists penetration of the resin of the coating mix into the paper, and a loading material, e.g. titanium dioxide. The opposite surface of the paper may also be coated with thermosetting resin and the paper may be further impregnated with thermosetting resin. An overlay paper sheet impregnated with melamine-formaldehyde resin and optionally printed on the reverse side with a decorative design, may be placed over the decorative paper sheet, the overlay sheet being made transparent during lamination. The support may comprise a plurality of superimposed thermosetting resin impregnated paper sheets, the layer sheets preferably being of Kraft paper impregnated with phenol-formaldehyde resin and the upper sheet adjacent the decorative paper sheet being of Kraft paper impregnated with melamineformaldehyde resin. Alternatively the support may comprise a base layer of chipboard having superimposed thereon a sheet of Kraft paper impregnated with melamine-formaldehyde resin, or a fibre mat made by draining a dispersion of fibres and powdered resin on the foraminous support of a papermaking machine, and drying the web so produced.
Patent GB-899086-A (GB)
Title: Improved railway control system
IPC: B61L3/14
Filed: 1959-03-11
Abstract: 899,086. Railway control systems. PATERSON, F. C. March 10, 1960 [March 11, 1959], No. 8348/59. Class 105. In a railway control system, the motive power to a train is supplied under the control of a relay 18 mounted in the train and energized by respective members of two groups of conductors 1, 2 disposed along the railway line; the supply of electricity to the conductors being controlled by train operated switch means. One conductor of each group 1, 2 is provided in each section of the railway line; and each conductor of group 1 is electrically connected to the conductor 2 lying in the next-but-one succeeding section. Each train carries a shorting member 17 to connect the conductor 2, in the section through which the train is passing, to a continuous earthed conductor 3 lying along the railway line; and a relay 18 in each train is connected between conductors 1b and 2b of this section. A track-side control unit 4a, 4b, &c. is provided for each section of the railway line, and comprises relay switch means whereby an energizing line voltage is connected to the associated conductor 1, the relays being energized or deenergized by trip switches 5a, 6a, &c. actuated by the train. If no trains are on the railway line, the line voltage is applied, by way of each control unit 4, to each conductor 1; and hence to each conductor 2 by the interconnection of each conductor 1 to the next-but-one succeedng conductor 2. A train 19 now placed at B will short 2b to 3, and the consequent current flow in track side unit 4d actuates a relay therein so that 1d and 2b are disconnected from the line voltage. The line voltage is now across relay coil 18, since 2b is earthed and hence motive power is fed to the train, through the actuation of relay 18, and it can proceed along the railway line. If another train 20 attempts to enter section d whilst the first train is still in section b, the shorting member 17 will earth conductor 2d and, since conductor 1d is already earthed by train 19, relay 18 of train 20 will be deenergized and the train deprived of motive power. When train 19 reaches the end of section b it momentarily actuates switches 5b, 6b, whereby conductors 1c and 2a are reduced to zero potential, and conductors 1d and 2b are reconnected to the line voltage; train 20 will now be connected, by energizing of relay 18, with motive power and enabled to proceed. The system is adaptable to railway junctions.
Patent GB-550398-A (GB)
Title: Improvements in or relating to bullet-resisting screen assemblies for aircraft or other vessels
IPC: B64C1/14
Filed: 1941-07-02
Abstract: 550,398. Preventing condensation on windows. TILLYER, A., and BRITISH INDESTRUCTO GLASS, Ltd. July 2, 1941, No. 8363. [Class 20 (iii)] In a bullet-resisting screen assembly for an aircraft, ship or tank and the like, a detachable frame carrying a transparent demisting panel is secured to the main frame carrying the laminated screen. The de-misting panel 18, which may be made of laminated glass, is mounted in a channelled rubber gasket 19 held, so as to include an air space, against the inner side of the bullet-resisting screen 12 by a frame 20 recessed to receive the gasket. The frame 20 has lugs 21 through which pass screwthreaded bolts 22 which take the place of three of the screw studs 16 which hold together portions 13, 14 of the main frame. Lock nuts 23 are tightened to hold the panel 18 securely, and to ensure that it is parallel with the main screen 12, and does not interfere with the optical requirements of the assembly. This panel may readily be applied to existing screens. Specifications 477,941 and 479,317 are referred to.
Patent GB-186079-A (GB)
Title: Improvements in or relating to apparatus for developing, and other wise treating cinematographic films
IPC: G03D3/14
Filed: 1921-03-17
Abstract: 186,079. Bourdereau, A. March 17, 1921. Continuous apparatus for developing and like treatment.-In apparatus for developing, fixing, washing, and otherwise treating kinematograph films of the kind in which the film passes through a series of tanks or vats in a continuous length, being supported by upper and lower rollers so as to take a zig-zag path through the apparatus, the lower rollers 14 are mounted so as to be capable of lateral adjustment in forked members 15 adjustably attached to rods 9 which are displaceably mounted in bearings 12, 13 carried by a bracket 10. The desired degree of tension may thus be imparted to the film. As shown, the rollers run on conical-ended screws 19. The rods 9 are of rectangular section and may be raised or lowered, being locked in any desired position by pins 28 pressed against them by cam levers 26, Fig. 4, the pins being retracted by springs. The front plates 30 of the bearings are hinged at 31, Fig. 3, and may be lifted and turned aside to allow the rods to be readily removed.
Patent GB-1146113-A (GB)
Title: Machine for spark discharge cutting of holes in workpieces made of current-conductive materials
IPC: B23H7/02
Filed: 1967-02-22
Abstract: 1,146,113. Spark erosion. E. V. KHOLODNOV, B. I. STAVITSKY, N. V. LOMOV and J. A. SHEVELEV. 22 Feb., 1967, No. 8455/67. Heading B3V. A spark erosion machine for cutting holes D in conductive workpieces 3 comprises two carriages 1, 2 movable in mutually perpendicular directions, one carriage 1 supporting the workpiece 3 and the other carriage 2 supporting a rotatable eccentric 7 connected to an arm 4 carrying means 6 for guiding the electrode 5, whereby upon rotation of the eccentric the electrode will move in a closed path. The electrode is preferably a longitudinally moving wire driven by a motor and guided by ceramic guide rollers (12), Fig. 3 (not shown), in the bracket 6 which is adjustable on the arm 4. The eccentric 7 comprises a pin 10 secured to a block 14 adjustable in a radial groove in a disc 13 on shaft 8 driven by means 9 which includes a follow-up arrangement for maintaining the required clearance between the electrode wire and workpiece.
Patent GB-900497-A (GB)
Title: Arc-extinguishing device for liquid electric circuit breakers
IPC: H01H33/75
Filed: 1960-03-10
Abstract: 900,497. Liquid-blast switches. ELEKTROTECHNICKE ZAVODY JULIA FUCIKA NARODNI PODNIK. March 10, 1960 [March 11, 1959], No. 8482/60. Class 38 (5). The arc - extinguishing chamber 1 of an oil circuitbreaker is suspended from a lead-in bushing 2 whose lower end 6 surrounds part of a holder 3 joined to the lead-in conductor 5 and carrying a spring-urged contact 4 co-operating with a movable contact 7. The end 6,contains a helically-curved channel 10 connected to a venting orifice 9, this arrangement increasing the insulating distance through the orifice between the holder 3 and the space of the breaker tank. The bushing 2 is made of cast insulating material and the end 6 is designed to prevent electric discharge from its outer surface. The channel 10 may alternatively be formed by a curved tube surrounding the extinguishing device.
Patent GB-160778-A (GB)
Title: Improvements in fusible links and struts for fire appliances and the like
IPC: A62C37/12
Filed: 1921-03-18
Abstract: 160,778. Lewis, L. M. March 26, 1920, [Convention date]. Alarms operated by fusible devices.-In fusible links and struts for sprinkler heads, fire-alarms, &c., of the type formed of two or more plates and a rigid key or strain member so arranged in a socket &c. formed in the plates as to force the plates apart when the solder melts, the key is provided with one or more projections extending to project through an aperture 12 beyond the surfaces of the plates and solder, in order to indicate that the parts are in correct operative position. In the construction shown in Figs. 1 and 2, the plates 1, 2 are formed with laterally-bent portions 7, 8 to form a socket for the reception of a rectangular key, which is formed with a laterallybent central portion or annular ridge 15 adapted to project through an aperture 12 beyond the surface of the solder 17. The ridge 15 is shortened by bevelling or cutting off its ends so as to clear the edges of the opening 12 as the key rocks in the socket on operation of the fusible link. In the construction shown in Fig. 7, a central plate 24 forms one member of the link and two outer plates 25, 26 the other member, and the key 38 and socket are spherical, the key 38 having two indicating-projections 41, 42. The plates 25, 26 may be provided at the top with flared portions 33, 34, between which is seated a bearing-member 35 of hard material or of fusible material. In further modifications, keys of polyhedric and cylindrical form and with indicating-projections are used, the sockets being correspondingly shaped.
Patent GB-705399-A (GB)
Title: Improvements in or relating to hay sweeps
IPC: A01D87/08
Filed: 1951-04-12
Abstract: 705,399. Hay-sweeps. THOMPSON, W. T., ALDERSON, T., and THOMPSON, J. F. April 15, 1952 [April 12, 1951], No. 8530/51. Class 6 (3). [Also in Group XXX] A tractor-pushed hay-sweep has metal tines I each with an upstanding longitudinal reinforcing rib 3 which engages a slot 6 in each of two transverse frame bars 4, 5, separate plates 7 being provided for removably securing the tines in place. At the outer end, the rib is tapered off and the tine is shaped and curved upwardly. The end portions 9 of the frame bars may be hinged at 10 to swing upwardly to lessen width for travelling or to provide a sweep of scoop form. The sweep is mounted on the tractor by a hinge bar 13 allowing free rise and fall during working or to permit raising by winding gear or the power lift on the tractor.
Patent GB-104607-A (GB)
Title: Improvements in and relating to Pitot Tubes.
IPC: G01F1/46
Filed: 1916-06-20
Abstract: 104,607. British Thomson-Houston Co., (General Electric Co.). June 20, 1916. Pitot-tube apparatus used in connexion with a fluid conduit 5, Fig. 1, is so constructed that the tubes can be removed from the conduit without the necessity of shutting off the conduit. The leading tube 36 is carried by a ring 24 fixed to a disk 25, and the trailing tube 40 is fixed to a block 38 inside the tube 36 and passes through an opening in a screw nipple 30 on the disk 25. Bolts 29 secure the disk 25 to a disk 17 secured to a member 7 screwed into the conduit. When the tubes are to be removed, the bolts 29 are disengaged, and the disk 25 is moved to the left for a distance sufficient to disengage an arm 54 from a recess in the disk 17. The arm is then turned to rotate a sleeve 50 to throw its apertures out of register with the apertures in the tubes 36, 40, and the disk 25 is further moved until a cap 55 on the end of the tube 36 engages a sleeve 18. The valve 12 is then closed on to its seats 11, after which bolts 16 are removed to enable the disk 17 and the tubes to be removed from the member 7. The apparatus shown in Fig. 3 may be used to effect the removal, the free ends of rods 60 being screwed into two of the bolt-holes in the disk 17, and a rod 67 with its end screwed into a socket on a screw cap 31 being moved lengthways by means of a nut 64.
Patent GB-1386737-A (GB)
Title: Head rest with yieldable edge zone
IPC: B60N2/02
Filed: 1973-02-22
Abstract: 1386737 Headrests for vehicle seats RECARO GmbH & CO 22 Feb 1973 [22 Feb 1972] 8756/73 Heading A4J A vehicle seat headrest comprises a plate 2 on which is supported a cushion 4, the upper edge and sides of the plate being formed with at least two grooves 5, 6 open in opposite directions, and deformable upon impact from above or at the sides of the headrest. The central part 7 of the plate is provided with apertures 12 such that the central part 7 deforms if the energy of impact cannot be completely absorbed by the grooves when the headrest is subjected to impact from above or the side but does not deform when the headrest is subjected to impact from the front. The headrest is adjustable about a horizontal axis defined by screws 9 and is held against movement by friction discs 8.
Patent GB-872273-A (GB)
Title: An electromagnetic measuring apparatus
IPC: G01F23/00
Filed: 1959-03-13
Abstract: 872,273. Measuring liquid-level electrically. VYZKUMNY A ZKUSEBNI LETECKY USTAV. March 13, 1959 [March 21, 1958], No. 8777/59. Class 40 (1). An electromagnetic measuring- apparatus e.g. for remotely indicating the height, or the quantity, of fuel in a tank 1 comprises an immersed body 3 which is of similar section to the tank 1 and is balanced by upper and lower arms 5, 4 having counterbalancing weights 7, 6, respectively. The upper arm 5 is fast, at its fulcrum, with a torsion-rod 8 which is keyed to the core of a toroidal coil 12 mounted within a casing 9 secured to the tank 1 and freely around which are mounted coils 10. A source 13 of alternating current is supplied to the coil 12, the electromotive force developed across the coils 10 and supplied to an indicating device 11 being varied in direct proportion to the degree of distortion of the magnetic field of the rod 8 produced by the uplift of the body 3 acting through the lever 5. In a modification, Fig. 2, the torsional body comprises a double-wound helical member 16 having its upper ends connected to a cylindrical immersed body 14 through contacts leading to a source 20 of alternating current, its lower end being connected to a rod 17 fitted to the container 18 by a lid 19. A coil 21, wound upon the helical member 16, is connected to the terminals of an indicating device 22. In both of the embodiments the alternating current may be supplied to the coils 10, or the coil 21, the indicating device being correspondingly connected to the coil 12 on the helical member 16.