baber/WOPTO huggingface dataset:
Patent GB-790013-A (GB)
Title: Improvements in or relating to wheel steering mechanism for camera dollies and the like
IPC: B62B3/00
Filed: 1955-08-08
Abstract: 790,013. Steering vehicles. KRILANOVICH, S. Aug. 8, 1955 [Aug. 13, 1954], No. 22764/55. Class 79(5) The steering shaft of a camera dolly is associated with a cam and a cam-follower linkage, so that when the cam is held against rotation, at least one wheel of the dolly is steered on rotation of the shaft through the linkage, while when the cam and linkage are held against relative movement, at least one other wheel is steered on rotation of the shaft. In Fig. 2, each pair of wheels 16, 17, 18, 19 mounted on a vertical shaft journalled in the body 10 and individual wheels 16, 17, and the pair 18, 19 are steered by three separate chains passing over one of three sprockets on the steering shaft 12 which carries handle bars 13, 14 (not shown). In Fig. 4, the sprockets 31, 32, 33 are integral respectively with sleeves 27, 28, 29 concentric with the steering shaft 12, the innermost sleeve 27 carrying a slotted cam 38, Fig. 6 the cam follower disc 49 of which is attached to the shaft 12 by the bolt 48 and the actuator crank 46. The sleeves 28, 29 are each attached to the bolt 48 by a toggle mechanism, Fig. 6, consisting of cranks 51, 53 and connecting links 50, 52. The handlebar shaft 55, Fig. 4 may be rotated by hand to move a clutch shaft 54 downwards wfnich causes disengagement of the end of a bell crank lever 74 from between arms 78 bolted to the underside of the cam 38 and engagement of a cross pin 82 in notches 84 in a collar 85 which is fixed to the sprocket 31. This movement is only possible when all four wheels are parallel to the sides of the camera dolly when a pin 91 may pass through a notch 89 in a horizontal plate 87. With the lever 74 disengaged from the arms 78, rotation of the shaft 12 causes equivalent rotation of all three sprockets 31, 32, 33 so that the wheels all turn through the same angle and the camera dolly may be steered in a straight line in any oblique direction. When the clutch shaft 54 is in the upper position, the cam 38 remains stationary on rotation of the shaft 12 so that the front wheels 18, 19, remain in the undeflected position. The cam follower disc 49 follows the slot in the cam 38 and rotates the sleeves 28, 29, through different angles such that the normals 94, 95 to the rear wheels 16, 17 always intersect on the common axis 92 of the front wheels 18, 19. The end portions 43 of the cam slot are nearer to the shaft 54 than the base 42 of the slot so that as the cam follower disc 49 moves relative to the slot from its central position in Fig. 6, the angle between the cranks 51, 53 becomes more obtuse, the crank 53 rotating through a greater angle than the crank 51. The change from one mode of steering to the other is effected without the operator taking his hands from the handle bar shaft 55, whilst rotation of this shaft is normally prevented by a thumb operated spring detent which locks the shaft relative to a bearing sleeve 57 which is integral with a collar 58 welded to the shaft 12.
Patent GB-498611-A (GB)
Title: Improvements in vices
IPC: B25B1/10
Filed: 1937-08-20
Abstract: 498,611. Vices. LANE, E. J. Aug. 20, 1937, No. 22858. [Class 61 (ii)] A vice comprises a sliding jaw b adjusted by a screw c working in an abutment d and a jaw e pivoted to the vice body at its lower end and having an apertured boss through which passes a clamping screw g inclined to the line of thrust of the jaws, the jaw e being actuated to engage the work by means of the nuts k and to give the final grip by means of an eccentric h, In the modification shown in Fig. 4, the screw g is actuated relatively to the barrel nut l by means of a head gl at its lower end provided with holes for a tommy bar and in another modification, Fig. 7, the screw head is adjacent the pivoted jaw and its lower end works in a nut l<1>. A spring m is interposed between the jaw e and an abutment on the screw.
Patent GB-295289-A (GB)
IPC: D06P1/02
Filed: 1928-08-08
Abstract: 295,289. I. G. Farbenindustrie Akt.- Ges. Aug. 8, 1927, [Convention date]. Samples furnished. Azo dyes yielding dyeings fast to kier-boiling and to light are produced in substance or in the fibre by coupling diazotized 1-amino-3:4- dimethyl-6-halogenbenzenes with arylides of 2 : 3-oxynaphthoic acid. The products obtained from diazotized 1-amino-3 : 4-dimethyl-6-chlorobenzene and the 5<1>-chloro-2<1>-anisidide, the 2<1>- anisidide and the 2<1> : 5<1>-dimethoxy-1<1>-anilide yield bright neutral red to bluish red dyeings. The following examples are specified of the production of the dyestuffs on the fibre:-(1) Cotton fibre is dyed a bright bluish red by treating with a grounding liquor containing the 4-anisidide. of 2 : 3-oxynaphthoic acid. and developing with a solution containing diazotized 1-amino-3: 4-dimethyl-6-chlorobenzene; (2) a bright scarlet dyeing is obtained by grounding with the 2<1>-anisidide and developing as in (1); (3) a bright bluish red dyeing is obtained by grounding with the 5<1>- (or 4<1>-) chloro-2<1>-anisidide and developing as in (1) ; (4) a bright bluish red dyeing is obtained by grounding with the. 2<1> : 5<1>-dimethoxy-1<1>-anilide and developing as in (1). Specifications 6379/12.; and 17279/13, [Class 15 (ii), Dyeing, Processes &c. for], are referred to. 1-Amino-3 : 4-dimethyl-6-chlorobenzene is obtained by chlorinating the acetyl compound or the salts of 1.amino-3 : 4-dimethylbenzene, or by substituting chlorine for the amino group of 1- amino-3 : 4-dimethyl-6-nitrobenzene and reducing the product.
Patent GB-258609-A (GB)
Title: Improvements in or relating to charging and adjusting apparatus for the metal members of the cartridge belts for the vickers' machine gun
IPC: F42B39/10
Filed: 1926-09-17
Abstract: 258,609. Ceskß Zbrojovkß Akciova Spolecnost V. Praze. Sept. 17, 1925, [Convention date]. Cartridge belts. - An apparatus for assembling the metal links and the cartridges of a Vickers machine-gun belt comprises a transverse reciprocating slide 13 for feeding the links one by one from a hopper 30, and a longitudinal plunger 17, in conjunction with a rotary drum 25, for feeding the cartridges one by one and forcing them into the links. The hopper 30 is obliquely arranged, as shown in Fig. 3, to relieve the slide 13 from the full weight of the links in the hopper; and the rear wall of the hopper has a rib 31 which fits between the eyes a, b of the links, Fig. 11, thereby correctly positioning them with the eye c forward. The slide 13 is reciprocated by a double-armed lever 8, 9, Fig. 2, pivoted at 10 and rocked by a cam groove 6, 7 on a cylinder 5 at the end of a crank shaft 3, which is connected by a link 14 to a slide 16 carrying the plunger 17. The drum 25 has an extension 24 formed with a longitudinal slot 26 terminating in an oblique slot 27 and engaged by a pin 21 on the slide 16. When the crank shaft is turned by a handle 4 to draw the plunger 17 to the left, the cam 6, 7 rocks the lever 8, 9 and reciprocates the slide 13 backwards and forwards. This double movement of the slide 13 extracts one link from the hopper 30 and feeds it forward bringing its eye c into line with the eyes a, b of the preceding link and with the plunger 17. At the end of this first half of the revolution of the crank shaft, the pin 21 enters the inclined groove 27 and rotates the drum 25, which is formed with a groove 28 which feeds a cartridge from a hopper into line with the plunger 17. During the second half of the revolution of the crank shaft, the lever 8, 9 and the slide 13 are unaffected, but the drum 25 is rotated back and the plunger 17 drives the cartridge in front of it through the eyes a, b, c of the adjacent link. The eye a abuts against a stop 36, Fig. 4, and the bullet of the cartridge enters a recess 37 in this stop, thereby correctly positioning the cartridge in the belt. The belt as it is thus gradually built up is guided forwards by two star wheels 40, 41, one 40 engaging the bullets, and the other 41 the cartridge cases. Beyond these star wheels the belt passes and falls over a curved end 51 of the baseplate of the apparatus, and is dragged forward by its own weight, this forward movement being made to proceed in steps corresponding to the movements of the slide 13 by means of a sliding bar 43 provided with faces 52, 53 allowing a step-by-step escape of fingers 42 on the star wheel 40 when the bar 43 is reciprocated by the slide 13 by a loosemotion connection 45.
Patent GB-898869-A (GB)
Title: Synthesis of 3-4:lutidine
Inventor: HARGRAVE KENNETH RAYMOND
IPC: C07D213/09
Filed: 1959-07-04
Abstract: Catalysts for use in the production of 3,4-butidine from crotonaldehyde, propionaldehyde and ammonia comprise alumina and/or silica.  In addition the catalyst may also contain titania, zirconia, ceria or thoria and also, as promoter, zinc, cadmium, tin, lead, tungsten, nickel, cobalt, chromium, molybdenum, iron, copper, palladium, silver, or a compound thereof.  In the examples mixtures of silica and alumina are used as catalysts with, in some cases, a promoter.  Promoters specified are lead fluoride, lead oxide, stannic oxide and zinc oxide.ALSO:3,4-Lutidine is produced by heating a mixture of crotonaldehyde, propionaldehyde and ammonia.  Preferably the reaction is carried out in the presence of a vapour phase condensation catalyst, e.g. alumina, silica or a mixture of alumina and silica.  The catalyst may also contain a proportion of a promoting metal or metal compound, e.g. zinc, cadmium, tin, lead, tungsten, nickel, cobalt, chromium, molybdenum, iron, copper, palladium or silver or their compounds.  The preferred temperature range for carrying out the process is 300 DEG C.-500 DEG C.
Patent GB-1438895-A (GB)
Title: Voltage multiplier arrangement
IPC: H02M7/10
Filed: 1974-05-23
Abstract: 1438895 Capacitors INTERNATIONAL STANDARD ELECTRIC CORP 23 May 1974 [4 June 1973] 23048/74 Heading H1M [Also in Division H2] In a voltage multiplier (see Division H2) multiple capacitors are formed into a common roll and utilize aluminium foils, using as a dielectric, two polystyrene foils with an intermediate polyester foil.
Patent GB-199294-A (GB)
Title: An improved artificial tooth
IPC: A61C13/093
Filed: 1922-08-24
Abstract: 199,294. Ash, Sons, & Co., Ltd., C., and Grainge, H. J. Aug. 24, 1922. Teeth, artificial. - An artificial tooth of the kind described in Specification 114,576, having a screw-threaded recess B and a duct C opening to the inclined rear face of the root, is now provided with one or more longitudinal grooves D in the sides. The material of the denture enters the grooves, the recess, and the duct.
Patent GB-356891-A (GB)
Title: Improvements in seats
IPC: B60N2/70
Filed: 1930-07-31
Abstract: 356,891. Spring seats. LAMPLUGH, H. A., 6, Cloister Crofts, Leamington, Warwickshire and LAMPLUGH SPRING SEATS, Ltd., New Oxford House, Hart Street, Holborn, London. July 31, 1930, No. 23063. [Class 52 (iv).] A seat of the blade spring type has an upper cushioning pad of moulded material, preferably sponge rubber. The pad is preferably made with increased depth at its front edge, or at both the front and rear edges. The distortion of the springs is limited by stops 4, 5 as in Specification 324,947, [Class 52 (iv), Upholstery &c.].
Patent GB-501718-A (GB)
Title: Improved electric discharge tube comprising a fluorescent screen
IPC: H01J29/28
Filed: 1938-08-04
Abstract: 501,718. Luminescent screens for discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 4, 1938, No. 23077. Convention date, Aug. 7, 1937. Addition to 441,813. [Class 39 (i)] In electric discharge tubes having fluorescent screens as described in the parent Specification comprising a transparent support and a fluorescent material having a layer of metal with a melting point greater than 1800‹. C. on the fluorescent material or between this and the support, the metal employed is rhodium. The rhodium layer has the advantage that it does not readily oxidize.
Patent GB-744052-A (GB)
Title: Improvements in or relating to electric circuit arrangements
IPC: G05B11/01
Filed: 1952-09-15
Abstract: 744,052. Phase-sense sensitive circuits. GENERAL ELECTRIC CO., Ltd., and DALE, S. H. Sept. 15, 1953 [Sept. 15, 1952], No. 23123/52. Class 38 (4). The output voltage and polarity of a D.C. generator 2 is controlled in accordance with a D.C. signal applied to the control windings 17, 18 and 19, 20 of a pair of saturable reactors connected with resistors 6, 7 to form a balanced A.C. bridge modulator. The modulated A.C. output is amplified at 8. The output of the amplifier is supplied by a phase-splitting transformer 26 to a pair of opposed rectifiers 29, 30 supplying the generator field, demodulating transformers 34, 35 energized from the same A.C. source as the modulator bridge being connected in series with the rectifiers. In the event of amplifier failure, no signal is applied to the rectifiers 29, 30 and the circuit therefore fails to safety.
Patent GB-996177-A (GB)
Title: Improvements in or relating to brazing alloys
Inventor: CAPE ARTHUR TREGONING
IPC: C22C9/00
Filed: 1961-06-27
Abstract: Stainless steel and superalloys are brazed with a Cu-Mn brazing alloy (containing not less than 15% Cu) to which has been added 3-25% Ni. The Mn content of the Cu-Mn alloy is preferably 10-70%.  The resultant alloy may also contain up to 25% Co, up to 0.5% B, up to 5% Ge, up to 3% Si, up to 3% Fe.  Specification 996,178 is referred to.
Patent GB-1104698-A (GB)
Title: Improved tank construction
Inventor: WARBURTON STANLEY BRYCE
IPC: B65D90/02
Filed: 1964-06-04
Abstract: 1,104,698. Freezing liquids. J. & E. HALL Ltd. 3 June, 1965 [4 June, 1964], No. 23141/64. Heading F4H. The walls of a freezing tank are protected from damage as the liquid expands during freezing by flexible liquid impermeable membranes 8 spaced from the walls, the spaces between membrane and wall being occupied by cushioning means. The latter may comprise pads of resilient material or a liquid such as brine or a water/ethylene glycol solution, connections 13 being provided for supplying liquid displaced from the cushions to a header arranged above the tank. The latter is provided with rows of cooling tubes 10 extending between headers 11, 12, has a sloping bottom 5 and an outlet 6, and may be used in the freezing and thawing of sludges for facilitating precipitation therefrom. The tank may be cylindrical or spherical in which case a one-piece membrane is employed.
Patent GB-442544-A (GB)
Title: Improvements in typographical composing machines
IPC: B41B11/18
Filed: 1934-08-10
Abstract: 442,544. Type-bar-making machines. LINOTYPE & MACHINERY, Ltd., 9, Kingsway, London, and SCOTT, R. H., 5, Manor Way, Bush Hill Park, Enfield, Middlesex. Aug. 10, 1934, No. 23146. [Class 100 (iii)] Escapements.-In an escapement-locking device for preventing accidental actuation of the escapements during the removal or replacement of the magazine, a locking-bar mounted on the magazine is automatically moved edgewise into and out of active position as the magazine is removed from, and applied to, the machine frame. The locking- bar 8, Fig. 3, is secured at its ends to levers 9 pivoted on the escapement-bar 2, and is moved into active position by springs 11, so as to engage behind the plungers 6, Fig. 4, that actuate the escapements. The plungers are thereby locked when the magazine is removed. On replacement of the magazine, contact of the ends 12 of the levers 9 with the magazine-supporting member 7 withdraws the locking-bar.
Patent GB-200400-A (GB)
Title: Improvements in or relating to skimmer attachments for ploughs and other agricultural implements
IPC: A01B15/02
Filed: 1922-08-28
Abstract: 200,400. Morton, R. C., and Stirrat, J. R. Aug. 28, 1922. Coulters and shares.-Skimmer attachments for ploughs &c. are provided with reversible cutting- plates and adjustable and reversible points. The reversible plate D and point E are bolted to rearward extensions of the usual front plate A. The plate D has two cutting-edges H, J, and the point E is of elliptical or stream-line form in cross section, and is adjustable vertically. The supporting- bar fits into a recess in the rearward extension C of the front plate A. The point E may form a continuation of the ordinary coulter blade.
Patent GB-952291-A (GB)
Title: Improvements in or relating to a method for the production of steel
IPC: C21C5/32
Filed: 1962-06-18
Abstract: Crude iron is surface blown with a high-oxygen gas stream containing in suspension iron ore together with carbonaceous matter such as coal, coke, charcoal, lignite oil or tar.
Patent GB-928815-A (GB)
Title: Process for the production of phenolic compounds
Inventor: III WILLIAM HUNT TAPLIN
IPC: C07C37/56
Filed: 1960-07-05
Abstract: A process for the production of phenolic compounds such as phenol by decarboxylation of aryl monocarboxy compounds, such as benzoic acid, in the presence of a copper salt which is soluble in the reaction medium, oxygen and water is characterized in that the build-up of tar or tarry products in the reaction zone is prevented by treating a withdrawn portion of the reaction mixture with superheated water, separating the tar and returning the aqueous extract thus obtained with or without subsequent removal of any part of all of the water from the extract, to the reaction zone.  The process may be operated continuously.  The examples relate to the preparation of phenol from benzoic acid in the presence of copper benzoate and magnesium oxide. The process may be applied to benzoic acids substituted with alkyl, phenyl, chloro, bromo and nitro radicals to obtain the corresponding phenols.  Reference has been directed by the Comptroller to Specification 762,738.
Patent GB-277339-A (GB)
Title: Improvements in or relating to variable-speed gearing
IPC: F16H29/18
Filed: 1927-09-06
Abstract: 277,339. Ditisheim,. R., (Assignee of Progression Soc. Anon.). Sept. 7. 1926, [Convention date]. Variable-speed gearing comprises an intermediate rotary disc f which is displaced eccentrically with respect to driving and driven shafts a, b to vary the speed ratio between these shafts. On each side of the disc f are radial guide grooves f<1> in each of which is the aquare head g<1> of a pin g which engages and carries a locking segment or block g<2>. The blocks g<2> are situated round the peripheries of two circular heads c fast on the shafts a, b respectively. When the disc f is eccentric, the blocks g<2> close in and open out as they revolve, that is, they revolve faster and slower cyclically, and by clamping them at one point to a disc c, a specific speed which may be varied is transmitted. Round each circle of blocks g<2> is a ring d which turns in a roller bearing m within a non-rotary ring n. Each ring n can be moved to a slightly eccentric position by screws o so as to create a constriction between head c and loose ring d where the blocks g<2> are clamped and drive with a ratchet-like action. A direct drive is obtained on a step-up in each grip train. The speed controlling displacement of the intermediate disc f is effected by turning a worm p which engages a worm-wheel k within which the disc f rotates. The wo-rm-wheel k rolls over a fixed worm i as fulcrum.
Patent GB-1218100-A (GB)
Title: Pressure operated expansion valve
Inventor: SALISBURY FRANK RINGER
IPC: F16K7/07
Filed: 1968-05-17
Abstract: 1,218,100. Valves. EASTMAN KODAK CO. 17 May, 1968 [22 May, 1967], No. 23532/68. Heading F2V. Control of fluid flow from an inlet 4 via an annular chamber 3 to an outlet 5 is by a resilient tube 2 which is expanded into the chamber 3 by compressed air from a source 14 under the control of valve 16. The ends of the tube 2 are formed with integral flanges 7 which are clamped in recesses of the valve block 1 by end plates 12. The tube 2 is internally supported by a tubular insert 9 having holes 10 therein. A number of such valves may be formed in a single block, the outlet of one valve forming the inlet of another and the valves may be actuated by programmed pressure signals and released by vacuum for high-speed operation.
Patent GB-988623-A (GB)
Title: Process for the reaction of isobutene with formaldehyde
IPC: C07D319/06
Filed: 1961-06-29
Abstract: 4,4-Dimethyl-m-dioxane is prepared by reacting isobutene with formaldehyde in the presence of catalysts comprising cation exchange resins based on cross-linked aromatic vinyl polymers and containing sulphonic acid groups.  Suitable aromatic vinyl compounds for use in the production of the polymers are styrene, vinyl toluenes, vinyl naphthalenes, vinylethyl benzenes, methyl styrenes, vinyl chlorbenzenes and vinyl xylenes. The vinyl compounds may contain sulphonic groups or sulphonic groups may be introduced into the polymers.  Polymers already containing sulphonic groups may have further sulphonic groups introduced by treatment with oleum. Advantageously, the reaction is carried out in several reactors in series with thorough mixing of the reactants.  Preferably, the reaction is carried out at 50-120 DEG  C. at a pressure higher than the vapour pressure of the hydrocarbon at the reaction temperature and C4 fractions from thermal or catalytic processes are suitable for use as starting materials. In some cases some tert-butanol is obtained as by-product. Specification 974,834 is referred to.
Patent GB-483640-A (GB)
Title: Improvements in shuttering for use in concrete work
IPC: E04G11/30
Filed: 1936-08-29
Abstract: 483,640. Concrete-wall shuttering. DON, C. Aug. 29, 1936, No. 23721. [Class 20 (ii)] Relates to shuttering for concrete work of the kind in which pairs of shutters 1 are linked together in such manner that they can be advanced step-by-step by swinging one about the other. According to the invention the shutters are linked by pairs of arms 3 which are pivoted to ribs 2, or the like, on the backs of the shutters midway of the depth of the latter, the ribs and arms having holes for the reception of locking pins 6. Further, ribs 7 having slots 8 for the reception of taper pins or wedges 9 are provided adjacent the abutting edges of the shutters for locking the latter in the operative position. Lugs 14 adapted to be engaged by locking pins may be provided for locking one pair of shutters to an adjacent pair. The shutters may be fitted with handles 12 and may be provided with holes 10 for the passage of the usual bolts 11 which temporarily hold the shutters in place.
Patent GB-863930-A (GB)
Title: Improvements in and relating to one-way clutches and brakes
IPC: F16D41/07
Filed: 1957-06-21
Abstract: 863,930. One-way clutches. GENERAL MOTORS CORPORATION. June 21, 1957 [July 25,1956], No. 23730/57. Class 80 (2). In the one-way clutch or brake described in the main Specification 826,548, sprags 22, arranged in sets of four in openings in a cage 10, and biased inwardly by a surrounding garterspring 42, are retained in the cage by shoulders 52 on the sprags and 54 on the cage. The cage openings are formed between cross-bars 20 of similar D-section to the sprags. A folded spring 46, to maintain sprag alignment, is arranged between the flat face of a bar 20 and the adjacent sprag and seats in a recess 48 in the bar 20 to prevent it being fully compressed. The springs 46, bars 20 and sprags 22 are notched to receive the garter-spring 42. As in the main Specification 526,548, a radius 38 through the centre of gravity 36 of the sprags 22 passes to the left of the outer contact point 40 so that centrifugal force provides an additional wedging moment. A spring-ring 56, seated in grooves in the cage 10 and outer race 12, tends to make the cage rotate frictionally with that race.
Patent GB-907888-A (GB)
Title: Improvements in or relating to screw type conveyors
IPC: B65G33/32
Filed: 1959-07-10
Abstract: 907,888. Screw conveyers. CLARK Ltd., GORDON V., and CLARK, G. V. Oct. 10, 1960 [July 10, 1959], No. 23730/59. Class 78 (1). The screw 1 of a screw conveyer is rotatably supported intermediate its ends by rollers 6 which are arranged in pairs, one on each side of the axis of the screw, the length of each roller preferably being at least twice the screw pitch.