baber/WOPTO huggingface dataset:
Patent GB-714948-A (GB)
Title: Improvements in or relating to hand winding mechanism for electric lifts and the like
IPC: B66D1/02
Filed: 1952-02-22
Abstract: 714,948. Hand-winding mechanism for electric lifts. EXPRESS LIFT CO., Ltd., and BILLINGTON, J. H. Feb. 2, 1953 [Feb. 22, 1952], No. 4740/52. Class 78 (5) A detachable emergency hand-winding mechanism for an electric lift (e.g. gearless) comprises a handwheel 31 which drives drum shaft 10 through epicyclic gearing 22, 25, 24, 20. As shown, handwheel 31 forms the planet carrier of planet wheels 24, 25, the mechanism being slid into sleeve 13 of the winch frame so that the sungear 20 is fixed by pin .21 and remains stationary and so that driven sungear 22 (which is driven by rotation of the hand wheel) engages shaft 10 at their ends 11, 23 which form a dog clutch, and so drives the winch. The mechanism may be secured in its position by pin 18, the movement into position causing the depression of pin 16 so as to actuate switch 17 to switch out the winch motor. After the mechanism is withdrawn pin 18 secures a cap over the opening of sleeve 13.
Patent GB-778647-A (GB)
Title: Novel ureas and salts thereof and a process for their production
IPC: C07D295/13
Filed: 1956-02-15
Abstract: The invention comprises compounds of the general formula: <FORM:0778647/IV(b)/1> in which R is hydrogen, alkyl, alkenyl, aralkyl or aryl, alkylene is of 2-6 carbon atoms, and Am is a mono- or dialkylamino group of low molecular weight or a 5- or 6-membered alkylene-imino group, and salts of these compounds; and processes for obtaining the compounds by reaction between (1) a suitably substituted carbanilic acid ester, amide halide, &c., with a suitable diamino-alkane; (2) a suitably substituted amine with a suitable carbamic acid or with the compound: <FORM:0778647/IV(b)/2> X being a reactive radical; or (3) a reaction as above in which the terminal group formed as NH2 is subsequently alkylated; and (4) the use of a tertiary amine in (2) above followed by heating or catalytic hydrogenation.  The products form neutral salts with mineral acids, alkane sulphonic acids, succinic, maleic, salicylic, and p-aminosalicylic acids, and other organic acids; and acid salts with 8-chlorotheophylline and theophylline-acetic acid.  In examples, the following ureas are obtained by the isocyanate method: N-2-chloro-6-methylphenyl) - N1 - 21 - diethylaminoethyl -, N1 - 21-dimethyl aminoethyl -, N1 - 21 - pyrrolidinoethyl -, N1 - benzyl - N1 - 21 - diethylaminoethyl- and many others in which R of the above formula is alkyl or aralkyl, and p-methoxy-aralkyl, and Am is piperidino-; and the isocyanate may be replaced by 2-halo-6-methyl carbanilic esters in these reactions; among other products are N-(2-bromo-6-methylphenyl)-N1 - methyl - N1 - (21 - diethylaminoethyl) urea and products in which the group R above is 2-chloro - 6 - methyl - phenyl -, and Am is pyrrolidino- and piperidino; the hydrochlorides of many products are isolated. Starting materials: N-2-chloro-6-methyl phenyl - N1 - 21 - chloroethyl - urea is obtained by the action of the 2-chloroethyl isocyanate on 2-chloro-6-methyl aniline.
Patent GB-767251-A (GB)
Title: A radially compressible spring support for rolls of yarn
IPC: D06B23/04
Filed: 1955-02-17
Abstract: A radially compressible yarn-carrying shell comprises turns of a spring 1 arranged axially of the shell and staggered relative to one another (or of unequal length) in the axial direction of the shell and linked by fixed rings 2 passing through and carried by arms 3 of a tube 4 forming the core of the shell and being capable of reception on a spindle: other arms 6 of the tube 4 hold an annular plate 5 which may <PICT:0767251/IV(b)/1> be impermeable and corrugated or permeable, e.g. formed of concentric wire rings (Fig. 5, not shown) for supporting a roll 7 of yarn.  In the column of superposed shells shown in Fig. 3, the tubes 4 are pushed on to a spindle 8, the topmost shell is covered with a cap 9 resting on a plate 5, and the assembly of rolls 7 secured by means of a nut 10 coacting with a threaded portion of the spindle 8, with the axial compression of the rolls limited by abutment of the ends of the tubes 4: the plate 5 of the lowest shell has a conical ring 11 which fits on to a complementary ring 12 carrying the spindle 8 and also forming the end of a supply conduit for yarn-treatment liquid.
Patent GB-213083-A (GB)
Title: Improved horn for gramophones, wireless and like apparatus
IPC: G10K13/00
Filed: 1923-02-20
Abstract: 213,083. Ealden, P. H. Feb. 20, 1923.. Sound magnifying and directing appliances.-In a soundmagnifying horn, particularly for use in a cabinet gramophone or with a wireless set, and having a long spiral sound passage consisting of one or more loops 2, the flared mouth portion 3 extends across the spiral so as to give a compact structure. The loops may pass above or below or both above and below the mouth portion 3. The sound may enter through the end 1 or through the wall of the horn at any distancefrom the end.
Patent GB-826138-A (GB)
Title: Improvements in or relating to armature coils for dynamo electric machines
IPC: H02K3/14
Filed: 1956-02-16
Abstract: 826,138. Commutator windings for dynamoelectric machines. FLETCHER, G. H. Jan. 29, 1957 [Feb. 16, 1956], No. 4902/56. Class 35. In an armature winding similar to that described in Specification 792,428, in which the slot conductors occupy the width of the slot and are divided into several electrically-connected sections or strands, one of which, at each turn, is extended beyond the rest to provide commutator connections L at the rear end of the coils, the two sides of each coil between adjacent segments are kept equally spaced above and below the horizontal centre-line of the slots to equalize their reactances, by the transposition of one conductor. In the conventional arrangement in which the coil connection and commutator connections are at the same end, the concentric arrangement of the coil conductors with respect to slot position means that both sides of each coil are equally displaced from the central level of the slot, so that, for instance, a deep conductor is connected in series with a correspondingly shallow one, and the coils thus all have the same total inductance. When the commutator connections are made at the rear end of the coils, this symmetry is upset. It is restored, according to the invention, by transposing one conductor to which the next coil is connected from its concentric position. As shown, the conductor 10 connected to the start S of the coil is transposed from its concentric position 6 just below the central level of the slot, to the bottom of the slot. The commutator coils are now 5 and 6; 4 and 7; 3 and 8; 2 and 9; and 1 and 10 of the next slot through the coil-connection F. Similarly conductor 10 is connected to 1 of the next slot in the other direction at S.
Patent GB-1348951-A (GB)
Title: Printing inks for intaglio flexographic and screen printing
IPC: C09D11/101
Filed: 1972-02-03
Abstract: 1348951 Printing with resin ink BAYER AG 3 Feb 1972 [4 Feb 1971] 5115/72 Heading B6C [Also in Division C3] A substrate is printed by a flexographic, intaglio or screen process by applying to it a printing ink comprising a resin or resin mixture that cures in the presence of an acid, a solvent or solvent mixture, and an initiator that releases acid on exposure to U.V. light, and irradiating the applied ink with U.V. light to release acid and cure the resin. Preferably the ink comprises 3-50 wt. per cent resin, 0-30 wt. per cent physically drying resin, 30-90 wt. per cent solvent, 0-30 wt. per cent colourant and 0À5- 10 wt. per cent initiator. Suitable initiators are the organic halo compounds disclosed in Netherlands Specification 65 12894, alkyl alpha halo ketones, as in Specification 1,299,144, halomethylated benzophenones, as in Specification 1,304,729, and alpha methylol benzoin sulphonic acid esters, as in Specification 1,265,604. In the example an ink is prepared from 10 p.b.w. red azo pigment, 5À6 p.b.w. soya alkyd resin and 5À4 p.b.w. urea formaldehyde resin, in butanol, 4 p.b.w. nitrocellulose, 2 p.b.w. p-benzoylbenzal chloride and an ethanol, ethyl acetate-, and ethoxyethyl acetate solvent mixture. It is applied by a flexographic machine to paper, polyethylene film or A1 foil, which is then led past an IR heat source and Hg lamps as U.V. source.
Patent GB-201581-A (GB)
Title: Improvements in safety catch gear for mine cages and lifts
IPC: B66B5/24
Filed: 1922-11-22
Abstract: 201,581. Severn, J. G. Nov. 22, 1922. No Patent granted (Sealing fee not paid). Catch gear of mine-cage type.- Levers C pivoted to the top of the cage E and having eyes G through which pass the guides Fare made in two parts connected by bolts H. Chains B connected to the hoisting chain normally maintain the eyes G in position to permit the passage of the guides F.
Patent GB-1426184-A (GB)
Title: Conveyor systems
IPC: B61B10/02
Filed: 1973-02-02
Abstract: 1426184 Power and free conveyers AMERICAN CHAIN & CABLE CO Inc 2 Feb 1973 [4 Feb 1972] 5253/73 Heading B7L A trolley body 20 for use.in a power-and-free conveyer system comprises a one-piece casting having longitudinally spaced axle-receiving openings and -a vertical opening 21 which accommodates a pusher and holdback dog assembly 40. The assembly 40 in the lead trolley 15 of a carrier 11 may comprise a pusher member 41 reciprocable in the opening 21 by a pivotal actuating member 59, 60 so as to lower a pusher dog 48 from the path of pushers 14 in the event that the actuating member contacts an obstacle such as a member 59a on a preceding carrier. The assembly 40 also includes a pivotal hold back dog 52. The central trolley 16 has a secondary dog 70 with lateral ears which engage track flanges to hold the dog out of the path of the pushers 14 except at track branches where the track is cut away to allow the dog 70 to pivot upwardly and to take over control of the carrier. A carrier may consist of a single trolley having both members 59 and 59a. Reference is made to Specification 1,426,185.
Patent GB-191641-A (GB)
Title: A combined fuel economiser or feed water heater and air heater for steam boilers
IPC: F22D1/06
Filed: 1922-02-23
Abstract: 191,641. Green & Son, Ltd., E., and Tansley, G. E. Feb. 23, 1922. Feed-water, heating. - A combined feed-water and air heater using waste furnace gases in steam boilers is positioned in a casing having partitions between the units and dampers for isolating the feed-water heater. In a casing on top of the boiler B are two feed - water heaters E separated by partitions P from the air heater S. Dampers D are provided so that the heaters E can be cut out. The heaters E may be of the kind set out in Specification 155,388.
Patent GB-1004734-A (GB)
Title: Improvements relating to voltmeters
Inventor: STURDY BRIAN
IPC: G01R15/00
Filed: 1962-02-12
Abstract: 1,004,734. Voltage measuring instruments. ELLIOT BROS., (LONDON) Ltd. May 13,1963,No. 5335/62. Heading G1Q. In a linearly-indicating suppressed-zero voltmeter, the D.C, voltage to be measured is applied through a series rheostat RV1 across one diagonal of a bridge comprising Zener diodes Z1, Z2 in one pair of opposite arms, and resistors R1,R2 in the other arms, an indicating or recording instrument M being connected, preferably in series with a rheostat RV2, across the other bridge diagonal. While the test voltage is below the breakdown voltage of the Zener diodes, a reverse current flows in the meter M; when this breakdown voltage is reached, the meter current changes its direction and deflects the meter pointer. RV1 is adjusted to set the lower limit of the meter scale, and RV2 determines the full scale reading. R1 and R2 act as current limiters for the Zener diodes and protect the meter from excessive reverse current.
Patent GB-376206-A (GB)
Title: Improvements in or connected with hood fittings for motor and other vehicles
IPC: B60J7/12
Filed: 1932-02-23
Abstract: 376,206. Vehicle hoods. SALMONS, G., 53, Tickford Street, and BALLS, A. H. DALBY-, 153, Tickford Street, Newport Pagnell, Buckinghamshire. Feb. 23, 1932, No. 5381. Addition to 253,736, [Class 108 (i), Road vehicles, Body details &c. of], and 370,324. [Class 108 (i).] In vehicle hoods as described in the parent Specifications a quadrant A meshing with the operating gears is connected by a link Z to an extension Y of the falling pillar 7, 8 the link being of any suitable length or telescopic or adjustable in length to enable the gears to be placed as near to the rear of the vehicle body as desired. The operating shaft for a crank handle is shown at 25.
Patent GB-456246-A (GB)
Title: A process for the preservation of cement, mortar and concrete
IPC: C04B41/50
Filed: 1936-02-22
Abstract: A process for the preservation in the mass of cement, mortar or concrete which has already set or hardened, consists in injecting into holes bored in the mass a solution of a salt adapted to react with the free lime in the mass to form a comparatively insoluble salt.  Suitable solutions are aqueous solution of carbonates, phosphates or alkaline silicates.  The invention may be applied to all concrete and like masses subjected to the destructive action of infiltrations of water, especially sea water, such as dams, maritime works, mine shafts, tunnels, &c.
Patent GB-1401230-A (GB)
Title: Multibeam cathode ray tube apparatus
IPC: H01J29/50
Filed: 1972-08-10
Abstract: 1401230 Cathode ray tubes A W STANDAART 10 Aug 1972 [18 Aug 1971] 5453/74 Divided out of 1401229 Heading H1D The description corresponds generally to that of the parent Specification 1,401,229. The multi-beam c.r.t. apparatus claimed for producing a matrix display pattern, includes, among other components, a resistive helical accelerating anode 28 and means for applying to same a negative potential gradient progressing from a maximum negative voltage at the cathode end to eliminate beam divergence due to repulsion of like charges in the beams. Helix dimensions, resistance and potentials are given.
Patent GB-190063-A (GB)
Title: Improved construction of press for dry-mounting photographs, pictures and the like
IPC: B30B1/04
Filed: 1922-02-24
Abstract: 190,063. Homewood, R. W., and Burrell, P. J. Feb. 24, 1922, Presses.-A press for dry-mounting photographs &c. is so constructed as to allow the photograph to project beyond the pressure head, so that a large photograph can be mounted in successive portions; the press can also be easily taken to pieces for packing and transport. For these purposes a bar 5 extends from a slotted lug 3 on the under side of a table 1 to a supporting-pillar 8 screwed through the bar. A blade spring 10 is held between the head 11 of the pillar 8 and a distance-piece 9 and is detachably secured at its other end to a pressure-head 13. Pressure is applied by means of a screw 14 screwing into the bar 5 and bearing on the blade 10 at a distance from the table 1.
Patent GB-1494446-A (GB)
Title: Continuous dyeing of cellulose fibres with reactive dyestuffs
IPC: D06P5/20
Filed: 1975-02-10
Abstract: 1494446 Dyeing cellulose materials with reactive dyes HOECHST AG 10 Feb 1975 [9 Feb 1974] 5630/75 Heading D1B Textiles containing or consisting of cellulose fibres are continuously dyed by applying to the textile an aqueous liquor containing a reactive dyestuff, a liquid alkali metal silicate, and an aqueous alkali metal hydroxide solution, the alkali metal silicate and alkali metal hydroxide being present in liquor quantities relative to one another equivalent to liquid alkali metal silicate of 37 to 60 Be' and aqueous alkali' metal hydroxide solution of 30 to 45 Be' in a ratio of 1:1 to 1:0.5 by volume, the material then being placed in a dwelling chamber in a cuttled-up of opened out condition and exposing the material to a moist atmosphere at 20 to 80C for 5 to 30 mins. The cellulose may be blended with polyester fibres which may be previously dyed with disperse dyes by the thermosol process. The reactive dye liquor may also contain soda, and the material may be steamed or treated with hot alkali metal silicate after the dwelling process.
Patent GB-567752-A (GB)
Title: Process for the manufacture of hexamethylene diisocyanate
Filed: 1942-04-29
Abstract: Hexamethylenediisocyanate is obtained by reacting hexamethylenediaminedihydrochloride with phosgene at 155 DEG  C. or above in the presence of a liquid, inert cyclic non-solvent boiling above 155 DEG  C.  In examples, the solvents employed are: tetrahydro- and decahydronaphthalene, amylbenzene, p-cymene and o-dichlor benzene.  Others mentioned are: n-dodecylbenzene, naphthalene, n-heptylcyclopentane and diphenyl.  Specification 462,182 is referred to.
Patent GB-685756-A (GB)
Title: Extensible ladders
IPC: E06C1/12
Filed: 1949-03-03
Abstract: 685,756. Ladders. AKTIEBOLAGET WIKSTRAND & BERG WIBE. March 3, 1949 [Aug. 16, 1948], No. 5868/49. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 5, 1949]. Class 20(ii) In an extensible ladder the uprights 1, 4, Figs. 1, 3, of the telescoping parts are of rectangular cross section and the uprights 1 of the lower ladder guide the uprights 4 of the extension ladder. Rollers 8, 11 on the uprights 1 engage the uprights 4, there being two rollers 8 mounted on a pivoted cradle. Safety guiding rails 16 operate in case the rollers break. Rollers 17 on the underside of the unrights 4 and rollers 17a at the lower end of the extension engage the uprights 1, guide rails 12 detachably mounted on stringers 13 of triangular cross section engage the upper side of the extension. The uprights may be of wood with a metal covering. The Specification, as open to inspection under Sect. 91, also described a latch for an extensible ladder comprising a hooking arm 19, Fig. 4 (Cancelled) mounted on one ladder unit and held by a spring 32 in the operating position as shown in the Figure so as to be engageable with the rungs of the next lower ladder unit and a stronger spring 28 adapted when tensioned to hold the hooking arm 19 inoperative by overpowering the spring 32. When the upper ladder unit is raised the arm 19 and a feeler 20 having a return spring 29 are pressed in against their return springs by each rung of the lower unit and the upper unit is held in the required position by engaging the arm 19 with a lower unit rung, whereupon the feeler 20 is turned anticlockwise and carries with it by means of catches 25, 26 a member 21 pivoted on the same axle 23, which tensions the spring 28, and also moves the lower end of the spring past the dead centre position of the spring and the member 21 so that when the arm 19 is disengaged from the rung it will be moved to inoperative position by the spring 28 and allow the upper unit to be lowered, the feeler 20 returning to initial position and clicking over the rungs. If now the upper unit is raised the feeler 20 will be turned clockwise by a rung and return, by means of a pin 27, the member 21 past the dead centre position and release the spring 28. This subject-matter does not appear in the Specification as accepted.
Patent GB-1044582-A (GB)
Title: Hydraulic and spring actuated shock absorber
IPC: B61G11/12
Filed: 1963-03-24
Abstract: 1,044,582. Shock-absorbers. Z. O. KARAKASHJAN, S. N. FATEEV, A. M. VORONTSOV, and A. I. CHERNYSHEV. March 24, 1963, No. 5905/63. Heading F2S. [Also in Division B7] An hydraulic and spring actuated shockabsorber, Fig. 2, comprises hydraulic cylinders 34, 35, an hydraulic piston 36 movable over part cylindrical, part cruciform metering pins 49, fluid-return poppet valves 57, fluid-filling ducts 61, 62, a fixed cylinder dividing wall 32 forming a base mounting for helical and disc plate springs 43, 45, a further hydraulic piston 52 mounted on a rod 38 and also provided with metering pins and return valves, further springs 44, 46, and an additional piston 39. In operation (see also Figs. 6-10, not shown), an inward force on the rods 37, 38 moves the pistons 36, 52 over the metering pins 49 and carries the stems of spring-pressed valves 57 away from abutment with the walls 29, 32 so that the valves shut after small travel of the pistons. At the end of the stroke the valves 57 contact the stops 47, 48 and the disc springs 45, 46 are operated. On recoil, the valves 57 open to give rapid return. As the closed-ended rod 38 moves inwardly, the volume of the chamber 35 decreases and excess fluid runs through duct 41 into a reservoir within the hollow of the rod and pushes back the piston 39 which is used to compensate for loss of fluid in the chamber. Safety valves, Fig. 5 (not shown), are also built into the pistons 36 and 52. In the embodiment of Fig. 1, a single hydraulic piston 6 with tapered metering pins 9 and poppet valves 11 moves in a cylinder 1, and springs 13, 16 are compressed by the piston-rod 7. Fluid leaking past the piston-rod is returned to the low-pressure side of the piston via ducts 25, 26 and the leakage is compensated for by the spring-pressed piston 19 operating in the reservoir 18.
Patent GB-945432-A (GB)
Title: Improvements in or relating to composite photography
Inventor: ATKIN LAURENCE WALTER
IPC: G03F3/08
Filed: 1961-02-17
Abstract: 945,432. Composite photographic reproduction. TECHNICOLOR Ltd. Feb. 19, 1962 [Feb. 17, 1961], No. 5926/61. Heading H4F. In a method of producing a composite photograph (or cinematograph) from two separate records of original scenes (for example foreground and background) each record is scanned by a separate raster, the luminosities of which are controlled by an electrical signal produced during the scanning of one of the records or of a copy thereof by a part of this record or copy which has a different intensity or colour from the remainder. In the only embodiment (Fig. 1) which uses a copy, foreground scene 20 and background scene 14 are simultaneously scanned by cathode-ray tubes 11 and 12, the combined image activating the photographic stock 19. A copy 23 of the foreground scene 20 is simultaneously scanned and the output from the photomultiplier 26 activated thereby is amplified and applied to bistable circuit 32. The outputs 30, 31 switch " on " or " off" the C.R.T's. 12, 11, depending on the relative amplitude of the outputs 30, 31. This in turn depends on whether the copy 23 is a " negative " or a " positive " copy. To make the photomultiplier 26 colour sensitive a selective filter (not shown) is inserted between it and the copy 23. In an alternative arrangement, Fig. 2, which eliminates the need for a copy controllable shutters 48, 41 are provided in front of the photomultiplier 45 and the photographic stock 42 respectively. During one complete scan the shutter 48 is open and the shutter 41 is closed (as shown), and the photomultiplier output (activated by light transmitted through the foreground scene 43) is stored in the storage tube 48. During the alternate scan the stored information is read out and used to control the electron beams of the tubes 33, 34 while the shutter 48 is closed and the shutter 41 is open. In a further arrangement (Fig. 3, not shown), polarizing filters are used to ensure that the photomultiplier is activated only by an auxiliary C.R.T. provided for this purpose. In a final arrangement (Fig. 4, not shown), the gating signal provided by the photomultiplier is not sufficient to extinguish either tube, thereby eliminating the need for an auxiliary tube.
Patent GB-267496-A (GB)
IPC: G05D3/14
Filed: 1927-03-03
Abstract: 267,496. Siemens & Halske Akt.-Ges. March 9, 1926, [Convention date]. Drawings to Specification. Electromagnetic switches.-In a motor control system for transmitting movements to a distance by means of a Wheatstone bridge arrangement, the responsive instrument in the neutral arm of the bridge is relieved of friction &c. by disposing the movable contact clear of the fixed contact and providing independent means, such as a vibrating electromagnet armature, to bring the contacts together. The variable resistances in the bridge arms may be constituted by wires dipping into mercury tubes of annular form. The invention is applicable to steam-boiler regulation.