baber/WOPTO huggingface dataset:
Patent GB-506442-A (GB)
Title: An improved starting trap for greyhound racing
IPC: A63K3/02
Filed: 1938-02-02
Abstract: 506,442. Starting dog races. ROTHFARB, G. Feb. 2, 1938, No. 3236. [Class 132 (i)] In a starting trap for greyhound racing, the iloor 6 of the trap is adapted to be moved backwards automatically when the door 1 has opened sufficiently to give a free exit for the dogs. The movement of the door releases a catch 9 through rod and lever 12 and 11 and thus permits spring 8 to move the floor back. When the door is closed again an abutment 14 thereon engages with levers 15 which are thereby actuated to pull the floor forward until catch 9 can drop again behind abutment 10 on the floor. In an alternative construction the release and resetting mechanism may be both actuated by the same lever connection from the door.
Patent GB-1423601-A (GB)
Title: Lasers comprising dielectric active material
IPC: C09K11/08
Filed: 1973-01-23
Abstract: 1423601 Hyperphosphates WESTERN ELECTRIC CO Inc 23 Jan 1973 [24 Jan 1972] 3285/73 Heading C1A [Also in Division H1] The dielectric active medium in a laser comprises neodymium hyperphosphate, neodymiumchromium hyperphosphate or neodymiumlanthanum hyperphosphate. The crystals may be grown by heating a solution of the metal oxide(s) on phosphoric acid. An inert container, e.g. a gold or graphite crucible is used, the latter in an O 2 -free atmosphere. The solvent acid is metaphosphoric acid, which may be derived from normal acid in situ by heating. The metal oxide(s) may be derived in situ from salts. Examples describe the preparation of NdP 5 O 14 , LaNdO 3 (P 2 O 5 ) 5  and Cr 2 O 3 (P 2 O 5 ) 5 .
Patent GB-162792-A (GB)
Title: Improvements in removable closures or covers for cans and like receptacles
IPC: B65D41/02
Filed: 1920-02-04
Abstract: 162,792. Berry, G. W. Feb. 4, 1920. Opening by cutting and tearing.-The cutter nib a for severing the tagger-tin closure of a can is formed from the lid flange by cutting away the metal as shown at c, Fig. 1, and also by slitting it upwardly and outwardly as shown at d. The rib is formed with an inset crimping shoulder e and with a bead f, and is rounded as a whole to conform with the curvature of the lid flange. The cutting of the tagger is effected by the part b<2> of the nib near to the shoulder e. The slot c serves as a guide and gauge for determining the amount the nib needs to be set back should it fail to spring back into cutting position, shown in Fig. 3, on removing the lid. Such setting back can be effected by fitting the slot over an edge of the can and pressing the lid.
Patent GB-161026-A (GB)
Title: Improvements in incandescent electric lamps
IPC: H01K3/22
Filed: 1920-02-06
Abstract: 161,026. Osborn, H. J. Feb. 6, 1920. Residual gases.-A tungsten-filament lamp is exhausted, then filled with helium at atmospheric pressure, and exhausted again mechanically. The helium admitted should be at least 98 per cent pure and unmixed with argon and neon. The pressure after the first exhaustion may be 2 mm., and the final pressure 10 mm.
Patent GB-100427-A (GB)
Title: Improvements in or relating to Shaft Furnaces or Kilns for Burning or Calcining Limestone, Dolomite and the like.
Inventor: MAGIS JEAN
IPC: F27B1/10
Filed: 1915-05-12
Abstract: 100,427. Magis, J. May 12, 1915. Chimneys.-In a shaft furnace or kiln for burning or calcining limestone and the like an adjustable chimney 49 is provided for getting rid of the carbonic acid or other heavy incombustible gas during the process of calcination. The bottom of the chimney is preferably bell-mouthed to assist the passage of the gases. If it is desired to collect the carbonic acid, branch pipes 52 conduct the gas from the chimney to the chambers 53.
Patent GB-246674-A (GB)
Title: Improvements in guards for circular saws
IPC: B27G19/08
Filed: 1925-02-10
Abstract: 246,674. Gandy, H. D., and Bailey, A. Feb. 10, 1925. Guards. - In guards for circular saws, a riving-knife 5 is secured to a flanged segmental guard 1 by frictional clamping-means engaging the knife and a slot 3 in the guard, so that, by adjusting the knife angularly and horizontally, it can be symmetrically disposed in relation to saws 11, 11<a> of varying sizes, without weakening the upper end of the knife. The horizontal slot 3, strengthened by a rib 4, is formed in the guard 1 and. an extension 1<b> thereof, the knife 5 being clamped by a bolt 9, wing-nut 10, and washer 7 provided with lugs 8 for engagement with the slot. The contacting faces of the washer 7 and a boss 6 on the knife are provided with radiating serrations, or are otherwise roughened. The guard 1, which may be adjustably supported on the bench 2 by means 18 - - 24, is open at one side to allow the fence (not shown) to approach the saw closely, and has adjustably clamped to its front edge a slotted curved extension 13 of angular section adapted to prevent buckling of thin timber.
Patent GB-219253-A (GB)
Title: Improvements in equipments or accoutrements for personal wear
IPC: A01M31/00
Filed: 1924-02-13
Abstract: 219,253. Casavola, E. Feb. 13, 1924, Equipments for carrying purposes.-In military equipments of the kind in which cartridge boxes or the like are suspended from the shoulders of the wearer, two crescent-shaped pads are provided for the shoulders and are connected together by a two-part adjustable back strap 4. Two leather cords 5 attached to the shoulderpieces pass under the armpits and are provided with a hook 6 and link 7, the latter engaging the strap 5 by means of a pin 8. Cartridge-box holders 12 are suspended from the hook 6 by means of a ring 13. For carrying stretchers or for other purposes a hemp loop passes through a ring sliding on the, strap 5.
Patent GB-203620-A (GB)
Title: Improvements in raising, lowering and traversing apparatus
IPC: B66C7/00
Filed: 1923-02-08
Abstract: 203,620. Johnson, J. Y., (American Engineering Co.). Feb. 8, 1923. Overhead travellers.-A trolley running on the lower flanges of an overhead track and comprising a winding drum driven by an electric motor for raising the load-block, is constructed so that the load-block may rise to the underside of the track, providing the maximum lift with given head room. The motor 12 and the drum 9 are at opposite sides of the trolley with sufficient space between them for the load-block 27, with the drum shaft 8 above the highest position of the spindle of the load-block. The motor drives the drum through a gear-train in an end-casing 18 on the trolley and no part of the trolley or gear-casing extends below the raised position of the load-hook. The hoisting-rope passes over a sheave 23 on the trolley, and the two ends are secured to opposite ends of the drum 9, the loadblock hanging in a bight of the double rope. The motor controller is operated by a hanging rope. The control includes an adjustable upper and lower limit switch, a solenoid brake for holding the load when the current is off, and a lowering brake.
Patent GB-826053-A (GB)
Title: Improvements in carrying out polymerisation processes
IPC: C08F10/02
Filed: 1957-02-05
Abstract: A process for withdrawing polymerization lost in continuous polymerization processes in which gaseous polymerization components are used, e.g. ethylene, propylene, isobutylene, vinyl chloride and fluorinated ethylenes, which comprises supplying one or more gaseous components of the reaction mixture under a pressure substantially higher than the pressure that prevails in the reactor and expanding said compressed component(s) through a throttle valve into the reactor.  Alternatively, there may be expanded into the reactor, through a throttle valve, a highly compressed gas which does not participate in or adversely affect the polymerization.  The components may be converged in a circulatory path, being expanded through the throttle valve, with lowering of the temperature, into the polymerization vessel, the heat being absorbed therein and withdrawn on a heat exchanger. The process may be applied to the production of low-pressure polyolefins.
Patent GB-870148-A (GB)
Title: Improvements in or relating to methods of and means for providing suspension threadsor the like on articles or packages
IPC: B65B61/14
Filed: 1958-02-06
Abstract: 870,148. Attaching suspension threads to packages. RASCH, W., [trading as RASCH SPEZIALMASCHINENFABRIK WILHELM.] Feb. 6, 1958 [May 20, 1957], No. 3896/58. Class 94(1). A suspension thread is attached to an article such as a wrapped chocolate novelty by arranging the thread adjacent the article and adhesive tape in front of the thread, and pressing the tape and thread against the article. The article 1 is held by grippers 2. and a thread 3 positioned adjacent its end by a feed disc 7. The disc 7 has a peripheral groove to receive the thread and two opposed gripper arms 14, 15 which alternately clamp the thread according to the position of a sliding plate 21. The thread stretches across gaps 29, 30 in the disc. Adhesive tape 37 is fed from a roll 39 by a moveable gripper 36, a fixed gripper 40 cooperating to position the tape in front of the thread. A horizontally moveable slide 42 moves to advance a spring loaded pusher 41 against the tape which is then pressed, with the thread, against the article. At the same time, a knife 44 severs the tape and the jaws 36 open to release it. Continued movement of the slide 42 causes rollers 47, 48 to wipe the tape round the sides of the article. The string, initially gripped by the arm 15, is cut by a knife 32. An abutment 35 on the knife arm moves the plate 21 so that the arm 15 releases the thread attached to the article and the arm 14 clamps the thread end extending from the supply. The disc then rotates 180 degrees to present a new length to the next article. In lieu of rollers 47, 48 brushes may be employed. Specification 870,149 is referred to.
Patent GB-1208864-A (GB)
Title: Device for pleating curtains
Inventor: BEARD JOHN ERIC
IPC: A47H13/14
Filed: 1967-01-26
Abstract: 1,208,864. Cooling vehicles. JOHN E. MITCHELL CO. 19 Feb., 1969 [19 April, 1968], No. 9100/69. Heading F4V. A casing for an evaporator of a vehicle cooling system comprises extruded plastic or aluminium upper and lower panels 31, 32, and end caps 33, all held together by screws 192. The walls are cut to the appropriate length corresponding to the length of the evaporator and interengaging bead and socket portions are formed on the extrusions. On assembly, one or more louvre units 40, made of a plastic or of aluminium, form the front of the casing and may be spaced by filler panels 36 and by a panel 35 mounting control knobs 141, 142 for such units as blowers and thermostats. A control knob 56 in each louvre unit can be moved horizontally to pivot vertical louvres and by moving knob 56 vertically the complete louvre unit can be pivoted in the casing about a horizontal axis.
Patent GB-112854-A (GB)
Title: Improvements in and relating to Doffing Mechanism for Spinning Frames.
Inventor: NEWSHOLME NORMAN ROBERT
IPC: D01H9/04
Filed: 1917-03-19
Abstract: 112,854. Newsholme, N. R., and Hudson, V. March 19, 1917. Doffing-arrangements.-A shaft S, Fig. 2, carrying, by means of brackets P<3>, a rail P having two series of pegs, one P' to hold the empty bobbins, and the other P<2> to receive the full bobbins, is mounted in front of the machine and is adapted to be raised and lowered, moved longitudinally, and turned through an arc. The shaft S also carries a longitudinally slidable rail F with a series of fingers F<2> adapted to hold the bobbins on the pegs during the necessary movements. The device is shown in Fig. 1 as applied to a ring frame. The ring-rail R, Fig. 5, is pivoted in brackets carried by the lifter-rods L. A sliding tray T with projecting portions T<3> and cut-out portions to clear the bobbins also is carried in the same brackets. The ring rail is turned about its pivot and lowered until the projections T<3> on the tray T can be slid under the full bobbins to support them. The shaft S is then raised by a lever O and chains O<2> and turned over by a handle so that the pegs P<2> are above the full bobbins. The lifter rods are then raised to push the bobbins on to the pegs where they are supported by the projections T<3>. The rail P is then moved laterally to bring the empty bobbins over the spindles. This movement is imparted also'to the tray T by a projection P<4> on the shaft S engaging' the handle T<2>. The empty bobbins are then released from the fingers F<2> and fall on to the spindles. The fingers F<2> move under the full bobbins and the tray T is withdrawn. The rail P is now withdrawn and lowered, the ring-rail is turned back, and the yarn severed by the notched cutters C on the spindles.
Patent GB-798685-A (GB)
Title: Separation of plutonium
IPC: C01G43/00
Filed: 1944-03-04
Abstract: Plutonium is recovered from an aqueous solution, in which it is present together with uranium, by making the solution sufficiently acid to prevent the precipitation of uranium phosphate and then forming a precipitate of mixed bismuth and plutonium phosphates. Neutron-irradiated uranium may be dissolved in nitric acid, the acidity adjusted to IN with sulphuric acid, bismuth nitrate added and then phosphoric acid, the mixture heated, and the precipitate removed.  The mixed bismuth and plutonium phosphates may be dissolved in concentrated hydrochloric acid, diluted, lanthanum nitrate added, and plutonium fluoride precipitated together with lanthanum fluoride by addition of hydrogen fluoride.  Tables are given showing the effect on the amount of plutonium precipitated of variations in the phosphoric acid concentration, the time of heating, the precipitation temperature, the amount of bismuth carrier, the uranyl nitrate concentration, and the nature and concentration of the acid used for adjusting the acidity.
Patent GB-1525336-A (GB)
Title: Filter for a high dust content gas analyser in particular for the flue gases of boilers and cement furnaces
IPC: G01N1/24
Filed: 1976-02-03
Abstract: 1525336 Sampling gas LEEDS & NORTH RUP ITALIANA SpA 3 Feb 1976 [25 Feb 1975] 04228/76 Heading BIT [Also in Division Gl] A filter for a sampling device which analyses a dust-containing gas, comprises duct 9 having nozzle 10 for attachment to the probe (not shown) of the device for withdrawing a sample of gas (e.g. flue gas of boilers or cement furnaces), a nozzle 11 for attachment to discharge duct 12, and nozzle 13 for attachment to the suction side of the aspirator (not shown) of the device, a filter sleeve 15 coaxially located in duct 9 and inlet 19 for the introduction of air in a direction towards duct 12. In use, the air introduced through inlet 19 sucks most of the gas withdrawn by the probe along the filter sleeve, only a minor portion of the withdrawn gas passing through the filter sleeve to the aspirator and an analysing instrument connected thereto.
Patent GB-512127-A (GB)
Title: Improvements in pyrophoric lighters
IPC: F23Q2/08
Filed: 1939-02-09
Abstract: 512,127. Frictional pocket &c, igniters. SIEGEL, A. Feb. 9,1939, No. 4294. [Class 75 (iii)] In an igniter in which the friction-wheel 6 is coupled with the pivoted wick-cap carrier 11 by a spring-pressed one-way roller clutch 21, the carrier 11 is pivotally connected at the sides to an operating lever 12 mounted on a flexible strip 15 connected to a return spring 17.
Patent GB-1040411-A (GB)
Title: Method of and apparatus for securing flexible material
Inventor: WEBB LESLIE
IPC: B31B1/74
Filed: 1963-02-01
Abstract: 1,040,411. Pleating and crimping. VESCO Ltd. Jan. 31, 1964 [Feb. 1, 1963], No. 4301/63. Addition to 913793. Heading D1S. [Also in Division B5] Apparatus for pleating or crimping flexible covering material folded in at a corner, e.g. of a loose leaf binder, comprises clamping jaws 1, 2 converging from a work-receiving inlet and cooperative for simultaneous movement in the direction of convergency whilst approaching one another, one of the jaws being a pleating or crimping jaw. The apparatus comprises a pivoted jaw 2 in the form of a bar pivoted about an axis 3 adjustable in vertical guides 4 to accommodate work of different thicknesses. The jaw 2 has a tongue 7 thereon which engages in a groove 8 formed by a plate 9 attached to the underside of a sliding jaw 1. A metal block 10, e.g. of beryllium or an alloy thereof, with an undercut recess 11 having a wall 11a shaped to conform to the corner edge of the work, is detachably secured to the jaw 2. A steel support plate 14 is secured to the jaw 1 in front of which a platform 17 is fixed. An inclined fence 19 to guide the work is secured to the jaw 1 to extend over the platform 17. The jaws 1, 2 are operated by a lever device 20 comprising a member 21 hooked into engagement with the jaw 2. Movement of the device along the jaw 2 is prevented by lugs 22 cooperating with stops 22a on the jaw 2 and which stops may carry a spirit level 22b to facilitate horizontal positioning of the jaw 2. As a lever 23a comprising a shaft 23 rotating on an axle 24 is operated to turn the jaw 2 against the action of compression springs 29 a cylinder 26 depending from the shaft 23 and which houses a spring-loaded plunger 27 is brought to bear against the front edge 28 of the jaw 2. Continued movement of the lever 23a causes a resilient tip, e.g. of rubber, on the plunger 27 to engage the work and the jaws are displaced rearwardly whilst closing. The top wall of the recess 11 is provided with a series of ribs and grooves to form a serrated pleating and pressure face. To form the rounded corner shown in Fig. 6, a corner 33 of a flexible covering, gummed over one face and the centre area of which is adhered to a board 34, is folded about a 45 degrees axis, Fig. 5. The side margins 35 are folded in and the exposed gummed faces are secured to the board 34 by the apparatus described in the parent Specification. The work is then fed cornerwise into the recess 10 with the edge of the work against the wall 11a whilst the corner area is supported on the plate 14. The jaws 1, 2 are closed and displaced rearwardly by the handle 23a. In a modification (not shown) no adhesive coating is applied to the flexible covering and the parts are made of thermoplastic material and are secured by heat and pressure, one or both of the jaws being heated.
Patent GB-1140780-A (GB)
Title: Method and apparatus for reconcentrating liquid desiccant
Inventor: GRAVIS CHARLES K
IPC: B01D53/26
Filed: 1968-01-26
Abstract: 1,140,780. Drying expended liquid desiccants; distillation apparatus. MALONEYCRAWFORD TANK CORPORATION. 26 Jan., 1968, No. 4314/68. Heading B1B and B1L. Liquid desiccants, e.g. glycol or polyglycols, which are laden with water are passed by line 16 to distillation column 12 where a major proportion of the water content is driven off and leaves at 22, partially dehydrated desiccant falling into compartment 18 where it is further heated by fire tube 20. Heated desiccant from compartment 18 passes over baffle 24, under baffle 26 and over baffle 28 before leaving by overflow 17 and pipe 34 to heat water-laden desiccant entering the system in the heat exchanger; Stripping gas, e.g. dry natural gas, is passed upwardly through the desiccant in the compartments formed by baffles 24, 26 and 28 and by the overflow compartment end-wall, so that the gas flow is countercurrent to the liquid in the first and third of these compartments and cocurrent in the second. The effluent gas stream containing the residual water vapour passes up through column 12 and also leaves at 22. A system is also described in which baffle 24 is missing, sparger 40 extending a short distance into main compartment 18.
Patent GB-354328-A (GB)
Title: Improvements in or relating to apparatus for feeding coins and the like
IPC: G07D9/00
Filed: 1930-02-08
Abstract: 354,328. Feeding coins from hoppers and shoots. AUTOMATIC COINWRAPPING MACHINE CORPORATION, 78, Greenwich Street, New York, U.S.A.- (Assignees of Seemel, B. E.; 623, Macon Street, Brooklyn, New York, U.S.A.) Feb. 8, 1930, No. 4330. Convention date, Feb. 9, 1929. [Class 117.] Apparatus for feeding coins, tokens, &c. to wrapping, counting, &c. machines, of the kind in which the coins are moved by a reciprocating pusher 18 along a track 2 to a position in which they are propelled by a reciprocating pusher 30 along a track 14 into the machine, is provided with a gate in the form of a pin 39 which is projected into the track in timed relation to the movement of the pusher devices so as to avoid the transfer of a coin from one to the other at an incorrect time. The coins may be passed singly into the track or may pass downwardly by gravity from a slot in the end wall of a magazine 8, and the leading coin is temporarily retained by spring-pressed rollers 15. The pusher 18 is driven by the shaft 25 by means of the lever 22 and the preferably resilient link 52. The pin 39 is urged by a spring into the track closing position and is retracted' by a lever driven by a link 44 and cam-actuated lever 45 from the shaft 25, which also drives the propelling member 30.
Patent GB-414768-A (GB)
Title: Process for the manufacture of stable diazonium compounds
Filed: 1933-02-13
Abstract: Stable diazonium salts are prepared by treating a diazonium compound with a sulphonic acid of the cyclic series containing at least once as substituent an amino group which is substituted by an acyl radicle of an aliphatic or aromatic carboxylic acid which may be further substituted by halogen, alkyl or the carboxylic acid group. Preferably, a concentrated aqueous solution of the amine is diazotized and the free acylaminosulphonic acid or a water soluble salt thereof added to this solution at a low temperature; the products generally crystallize out as stable water soluble substances which couple in solution in the usual manner.  In examples or a table, reference is made to the production of diazonium salts from the following components: 1 - acetylaminobenzene - 4 - sulphonic acid and 3-chloro- or 2,5-dichloraniline, 4- or 6-chlor-2-aminotoluene, 4- or 5-nitro-2-aminotoluene, 3-nitro-4-aminotoluene or 2-amino-5-benzoylaminohydroquinone - diethyl - ether; 1-acetylaminobenzene-3-sulphonic acid and 3 - chloraniline; 1 - chloracetylamino - benzene-4-sulphonic acid and 3-chloraniline; 1 - propionylaminobenzene - 4 - sulphonic acid and 4 - chloro - 2 - aminotoluene; 1 - benzoylaminobenzene-4-sulphonic acid and 4-chloro-2-aminotoluene; ethylester-oxalylaminobenzene-4-sulphonic acid and 3-chloraniline; 4-sulphophenyloxamic acid and 4-nitro-2-aminotoluene; 4-sulphophenylurea and 4-chloro-2-aminotoluene; urea of 1-aminobenzene-4-sulphonic acid and 4-chloro-2-aminotoluene; 4,4<1>-disulphodiphenyloxamide and 3-chloraniline; 1-acetylamino-2-chlorobenzene-4-sulphonic acid and 4-chloro-2-aminotoluene; 1,3-bis-acetylaminobenzene-4-sulphonic acid and 4-chloro-2-aminotoluene; 2-acetylamino-4-sulphobenzoic acid and 5 - nitro - 2 - aminotoluene; 1 - acetylaminobenzene-2,4-disulphonic acid and 5-nitro-2 - aminotoluene; 2 - acetylaminotoluene - 4,5 - disulphonic acid and 4-nitro-2-aminotoluene; 1 - acetylaminonaphthalene - 4 - sulphonic acid and 4-chloro- or 4- or 5-nitro-2-aminotoluene; 1 - acetylaminonaphthalene - 5 - sulphonic acid and 4-chlor- or 5-nitro-2-aminotoluene, or 3-chloraniline; 2 - acetylaminonaphthalene - 5,7-disulphonic acid and 4-chloro-2-aminotoluene; 1 - acetylaminonaphthalene - 4,6,8 - trisulphonic acid and m - toluidine - azo - m - toluidine. Reference is made to the use of acylaminosulphonic acids of the benzene, naphthalene, carbazole, anthracene or acenaphthene series and their substitution products; such derivatives are prepared by reacting upon the appropriate aminosulphonic acids with an acylating agent.