baber/WOPTO huggingface dataset:
Patent GB-1034229-A (GB)
Title: Olefine copolymers
Inventor: CLARK KEITH JASPER
IPC: C08F210/00
Filed: 1964-06-16
Abstract: A solid crystalline copolymer of butene-1 with pentene-1 comprising between 10 and 90% of pentene-1 monomer units is obtained by polymerizing in the presence of a stereo-specific polymerization catalyst comprising a transition metal compound and an organometallic activator.  The preferred catalyst comprises titanium trichloride obtained by reducing titanium tetrachloride with an aluminium alkyl sesquichloride, and an aliminium dialkyl aluminium chlo ide. Preferably the copolymer is obtained in the form of a free flowing slurry by initially homopolymerizing a 1-olefine such as propylene, butene-1, 3-methyl-butene and 4-methyl-pentene-1 until at least 0.5% by weight of the final polymer yield has been formed.  The homopolymer acts as a "seed" for the copolymerization step.
Patent GB-798826-A (GB)
Title: Improvements in needle-less hypodermic injectors
Inventor: ZIHERL FRANK ANTON
IPC: A61M5/30
Filed: 1954-08-27
Abstract: 798,826. Hypodermic injection devices. Z. & W. MACHINE PRODUCTS, Inc. Aug. 27, 1954, No. 24987/54. Class 81 (2). [Also in Group XXVIII] A needleless hypodermic injector has an actuator and a plunger by which the contents of a medicament chamber may be discharged, and fluid pressure means for withdrawing the plunger and thereby energizing the actuator. In a device for single shot operation, a piston 13 is slidable within a cylinder 10 and secured to a plunger 6 and an extension rod 15. A compression spring 19 is disposed within the cylinder 10 and tends to urge the piston 13 and plunger 6 forwardly. A fluid pump is housed in a handle 1 and consists of a reservoir 37 connected by a channel 69 containing a ball valve 71 to a cavity 39 housing a pump piston 40 which may be reciprocated by a lever 42 pivoted to the handle 1. On reciprocation of the lever 42, fluid, e.g. mineral oil, is drawn from the reservoir 37 and pumped via a channel containing a ball valve 70, a chamber 54 and a passage 66 into the cylinder 10. The piston 13 is retracted against the spring 19 which thus becomes energized. A charged ampoule c, Fig. 7, is held between jaws 23 at the front of the device. The ampoule c has an aperture 83 of about 0.003 inch diameter at the front and is closed at the rear by a piston 85. The plunger 6 bears against the ampoule piston 85. To make an injection, button 62 is depressed which lifts the head 59 of a valve stem 58 thus connecting the cylinder 10 and passage 66 with the reservoir 37 via a channel 68. Fluid then recirculates to the reservoir 37 to release the spring 19 which drives the piston 13 and plunger 6 forwardly with the resultant ejection of inoculant through the ampoule aperture 83 at a pressure sufficient to pentrate body tissues. The ampoule c may be removed from the jaws 23 on retraction of a sleeve 28, which surrounds a collet 21 forming the jaws 23, by means of a trigger 36. The jaws 23 then expand radially to release the ampoule c. A plate 74 is provided at the rear of the injector body for holding the extension rod 15 and the piston 13 in retracted position after the spring 19 has been energized. The narrow portion of a keyhole slot in the plate 74 is arranged to surround a narrow portion 72 of the extension rod 15. The extension rod 15 has a rearwardly projecting threaded portion 16 which is provided with a longitudinally extending flat 79 carrying indicia 80. An adjusting nut 17 is threaded on the extension rod 15 to coincide with one of the indicia 80 so that on projection of the plunger 6, the stroke is limited by the abutment of the nut 17 against the plate 74. Specification 798,827 is referred to.
Patent GB-140018-A (GB)
Title: Improvements in or relating to carburettors for internal-combustion engines
IPC: F02M9/02
Filed: 1919-10-13
Abstract: 140,018. Hanwell, C. H., and Hanwell. O. E. Oct. 13. 1919. Spray carburettors.-The air supply to the nozzle B is controlled by a valve E, the face of which is shaped to correspond with that part of the passage D in which the nozzle is situated, and is provided with a slot E<1> to accommodate the end of the nozzle. The slot E<1> is of approximately the same width as the nozzle, so that it directs the stream of air from the inlet D<2> on to the nozzle, and is closed against air admission by the wall of the passage D when the valve is closed. The mixture outlet D<1> is controlled by the valve E and also by a throttle valve C<1>. The valves E, C<1> are reciprocated by any means, for example by Bowden wires G<1>, F<1>.
Patent GB-617227-A (GB)
Title: Improvements in lithographic printing plates
IPC: G03F7/04
Filed: 1946-08-23
Abstract: 617,227. Photo-lithographic printing plates. KODAK, Ltd. Aug. 23, 1946, No. 25175. Convention date, Aug. 23, 1945. [Class 98 (ii)] A cellulose ester sheet is surface hydrolysed as with an alkaline aqueous-alcoholic solution, sensitized on the hydrolysed side with a watersoluble salt of chromic acid; exposed to light under a design, and etched so as to remove either exposed or unexposed areas of the hydrolysed surface, to result in a printing plate. The sheet may be of cellulose acetate, acetate-propionate or acetate-butyrate and it may have a protective lacquer coating on the reverse side, or may have a backing of less easily hydrolysable cellulose ester such as the nitrate, in which case the depth of hydrolysis is more easily controllable. The surface hydrolysed and sensitized sheet may be exposed under a half-tone or line positive and the unexposed skin etched away with zinc chloride solution to leave an intaglio surface, or exposure may be effected under a negative and the exposed material etched with sodium hypochlorite, sodium chlorite or sulphuric acid. The second of two examples describes exposure of Kodalith Ortho Cartographic Film through a half-tone screen in a camera, development, fixing and washing to produce a negative silver image, immersion in a solution of caustic soda in aqueous alcohol to hydrolyse the rear surface of the film, bichromate sensitization of this hydrolysed surface, exposure of the film to an arc light incident on the negative silver image and simultaneous removal of the exposed areas of the hydrolysed surface and the emulsion with the silver image by immersion in a solution of sodium hypochlorite to provide a plate ready for printing. Specification 565,752 is referred to. The Specification as open to inspection under Sect. 91 comprises also a modification in which a surface-hydrolysed cellulose ester film is coated with a resist containing a water-insoluble compound such as dicinnimal acetone, or compositions containing cinnimal ketones and resins, exposed through a screen positive which decreases the solubility of the exposed parts, washed with a solvent such as formamide or triethanolamine to remove the unexposed parts and treated with zinc chloride to remove the solvent and to etch the hydrolysed surface, whereby, upon removal of the resist, a lithographic printing plate is formed. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1310834-A (GB)
Title: Spreading implements and or transport vehicles
IPC: A01C15/00
Filed: 1970-05-26
Abstract: 1310834 Fertiliser distributers and transporters LELY Ltd 26 May 1970 [30 May 1969] 25299/70 Heading A1D [Also in Division B8] A fertiliser vehicle is adaptable for both distributing and transporting. A hopper 9, in the form of an inverted square pyramid, is supported on a frame by members 10, 11. A rotary distributor 25 is mounted at the apex of the hopper and is driven from a gearbox 27 which may be connected with the power-take-off shaft of a tractor. If the vehicle is to be used as a transporter, the delivery mechanism 35 is detachably inserted inside the hopper 9 and the auger 31 is connected to the gearbox. At the destination, the auger is set into rotation to raise the contents to the mouth of the delivery member 61 which discharges the material over the upper edge of the hopper to the outside. When spreading, the delivery mechanism may be replaced by an agitator to prevent clogging.
Patent GB-645191-A (GB)
Title: Improvements in and relating to telephone sterilizers
IPC: H04M1/17
Filed: 1947-09-17
Abstract: 645,191. Telephone instruments. BACKIE, J. Sept. 17, 1947, No. 25432. [Class 40 (iv)] Germicidal lamps 15, 16 are fitted to a telephone set and are shielded so that sterilizing rays are projected on to the mouthpiece 12 and earpiece 11. In one arrangement, Figs. 1, 2, the telephone set stands on a platform 25 spring-loaded so that a switch 23 extinguishes the lamps when the hand-set is lifted. In a modification, Figs. 3, 4, a switch-lever 38 is displaced by the hand-set as it is removed and is held by a latch 45. The latch may be released by a Bowden wire 52 controlled by a handle 54. In a wall telephone, Fig. 7, the earpiece lamp 16 is fixed and the mouthpiece lamp 15 is mounted on a pivoted arm 67 which operates a switch (not shown) when the lamp is in position opposite the mouthpiece. The arm 67 is held in its uppermost position by a clamp 77 which can be released by a contact-piece 84 adjacent the earpiece 11. The clamp and the contact-piece are interconnected by a Bowden wire 83. A similar arrangement may be applied to a telephone of the candlestick type (Fig. 10, not shown). In another arrangement (Fig. 11, not shown), the switch is operated by a lid normally covering the telephone set.
Patent GB-1260278-A (GB)
Title: An improved rotating gantry for circular basins
IPC: B01D21/18
Filed: 1970-05-27
Abstract: 1,260,278. Rotating gantries for treating sludge. U. PASSAVANT A.G. 27 May, 1970 [28 May, 1969], No. 25509/70. Heading B8E. A rotating gantry 3, Fig. 1, is supported on the rim of a settling tank 1 by wheels 7 and is centred and guided by a pin 4 attached to a fixed bridge 2. Floor clearing plates 5 and rake bars 6 are attached to the bridge. In a second embodiment, Fig. 3, a pin 4a is provided with a bearing 11 which supports part of the weight of the grantry 3. In both embodiments the wheels 7 are driven to rotate the gantry.
Patent GB-1047014-A (GB)
Title: Improvements in or relating to hydraulic pumps, turbines or reversible pump turbines
Inventor: KERENSKY GLEB
IPC: F03B11/00
Filed: 1962-07-03
Abstract: 1,047,014. Hydraulic turbines; centrifugal pumps. ENGLISH ELECTRIC CO. Ltd. July 2, 1963 [July 3, 1962(2); July 16, 1962(2)], Nos. 25515/62, 25517/62, 27217/62 and 27219/ 62. Headings F1C and F1T. An hydraulic turbine, pump or pump-turbine comprises a runner 11 having shrouds 16, 17 surrounded by a stator 12 to form annular spaces 20, 30 to which compressed air is supplied through restricted pipes 25, 35 so as to exclude leakage water from the spaces and thus improve efficiency. Labyrinth seals 19, 29 define the radially inner limits of the spaces 20, 30 respectively and are supplied with leakage water under pressure through pipes 21, 31 from collecting chambers 24, 34 so as to prevent the escape of air from the spaces. Excess air or water collects in chambers 27, 37 and exhausts through pipes 28, 38. In a modification, Fig. 4 (not shown), pairs of chambers 24, 27 and 34, 37 are each replaced by a single chamber from which water and air flow through pipes 21, 31 to seals 19, 29 respectively. In a further modification, Fig. 7 (not shown), a runner 61 having a shroud 67 is mounted within a stator 62 to form an annular space 70. Seal 69 is fed with high pressure leakage water from chamber 74 through pipe 71 and compressed air is supplied through pipe 75. The leakage water finally discharges from chamber 77 through holes 80 to the low pressure side of the runner at 65. Air discharges through a restricted pipe 78. Further modifications are described with reference to Figs. 8 to 11, including such features as slightly modified seals and an additional sealing water supply reservoir. Orifices such as 26, 36, may be variable and restrictions may be provided in pipes such as 21, 31.
Patent GB-746581-A (GB)
Title: Improvements in or relating to power-operated mobile hoists
Inventor: LUNN ROBERT TURNER
IPC: B66B9/16
Filed: 1954-09-02
Abstract: 746,581. Builders' hoists; safety catch gear; winches. A. C. E. MACHINERY, Ltd. Sept. 2, 1954, No. 25525/54. Classes 78 (3) and 78 (5). In a builder's hoist the mast 1 is moved from the position shown to a horizontal transport position by means of arcuate ground engaging members 52 secured thereto, the engine-driven winch 3 being mounted on a wheeled chassis 70 which is pivoted to the mast at 53 and is arranged to be automatically raised from the ground when the mast is erected. Jacks 48, and pads 49 mounted on horizontally movable arms 50, support the hoist in its operative position ; and for transport the mast rests against a spring loaded bar 55 which, together with a slot 59 engaging pivot 53, provides a spring suspension for the hoist. Safety catch gear.-The platform pulley 21 (Fig. 6) is normally held at the top of slots 71 by the tension in the hoisting cable, but in the event of this cable running slack, downward movement of the pulley is communicated by a flexible member 36 to a shaft 37 which moves toothed eccentrics 38 into engagement with guide rails 4. Winches.-The winch drum 12 (Fig. 7) is mounted in eccentric bearings 11 rotation of which cause the periphery of the drum to be moved into contact with either a friction driving roller (not shown) or a brake shoe 15 (Fig. 1). Rotation of bearing 4 is effected by a weighted control lever 13 pivoted at 40 to a lever 33 connected to a control cable 9. In the event of the platform being over wound a cable 23, which is secured to an anchor (not shown) at the top of the mast and to a spring device 27, is engaged by a member on the platform and tensioned so releasing a catch 31, 32 and allowing the arm 13 to brake the drum. A padlock 45 is provided to lock the arm 13 in its braking position.
Patent GB-879988-A (GB)
Title: Improvements in or relating to motion converting apparatus
Inventor: WOODHEAD JAMES
IPC: B41J11/24
Filed: 1957-08-13
Abstract: 879,988. Converting rotary into reciprocating motion. INTERNATIONAL COMPUTERS & TABULATORS Ltd. July 17, 1958 [Aug. 13, 1957], No. 25534/57. Class 80 (1). Reciprocation of a member such as the carriage assembly 6, 8, 9 of a typewriter is effected by a continuously rotating sprocket 3 engaging with a length of chain 4 connected at its ends by links 16 to the carriage assembly. At the limits of the travel of the carriage pins 18, 18a on the ends of the chain 4 engage cam surfaces 19 on a spring-centralized arm 20 which latter maintains the end roller of the chain in contact with the sprocket (see Fig. 3) as it passes around the sprocket to the opposite side thereof when the carriage will then be driven in the reverse direction. Instead of a chain and sprocket, a wire and friction pulley may be used or a rigid rack could be utilized adapted to move transversely as its end passes around the driving pinion.
Patent GB-990881-A (GB)
Title: Machine for clipping lace and similar textile products
Inventor: VERLEY MARC
IPC: D06C13/04
Filed: 1962-07-04
Abstract: 990,881. Trimming fabrics. LACE CLIPPING CO. July 4, 1962, No. 25639/62. Heading D1S. A reciprocatable cutting head 2 for lace clipping machines comprises an articulated cutting blade 13 in co-operation with a trough-shaped beak 9 having at its projecting end a rounded palette 9b, the blade 13 having at its lower non- cutting part a rounded end 13a which enables the blade 13 to be raised over loose threads or over the lace when the head 2 is displaced for the palette 9b to engage loose threads and the shape of the blade 13 being such that the lower part 13b of its cutting edge is below the level of the tops of the sides 9c of the beak 9 when the end 13a rests on the palette 9b. The head 2 is supported on a body 1 fixed to a split pivot 3 and to a driver 4 which reciprocates the head 2. A plate 7 secured to the body 1 by eyelets 8 abuts against the driver 4. A coil spring 6 in slots 5 bears against the body 1 at 5a and against the driver 4 so as to be compressed if the head 2 strikes an obstacle during advancement thereof and decomprossed during the return thereof until the head 2 no longer encounters the object. A blade support 10 is secured to the body 1 by eyelets 11. The blade 13 is pivoted to the support 10 by an eyelet 12 having a flat 12a. The beak 9 comprises a trough 9a extended by the palette 9b. In use, the head 2 first moves to the left of Fig. 2 and a loop 15 passes through a space 16 between the palette 9b and the rounded portion 13a of the blade 13 which is thus pivoted anticlockwise from its rest position contacting the trough bottom. The blade 13 then returns to its rest position, Fig. 4, and on reversal of the direction of movement of the head 2 the loop 15 is cut by the end 13b of the cutting portion of the blade 13. If the beak 9 engages in a hole 17, Fig. 7, the portion 14a of the lace fabric is disposed above the beak whilst the portion 14b remains below and the blade 13 cannot sever the lace.
Patent GB-831454-A (GB)
Title: Equipment for the sterilization of gardening materials, such as earth for cultivation, turf dust, gardening implements and the like
IPC: A01G11/00
Filed: 1957-08-14
Abstract: 831,454. Treatment of soil. ISELI & CO. Aug. 14, 1957 [Aug. 29, 1956], No. 25656/57. Class 6(2). [Also in Group XI] Sterilization apparatus having one compartment for soil &c. and another for gardening tools and the like comprises a corrosion resistant container 1 having handles 4<SP>1</SP> and an easily detachable floor 2. A heater comprising two layers of uniformly spaced heating elements 5 joined by transverse heat distributer plates 6 is fixed longitudinally in the container 1, at least the outer elements in the lower layer being supported at the end walls. A thermostat 7 having a detector 7<SP>1</SP> connected to several plates 6, a contactor 8, Fig. 2 (not shown), and an indicator lamp 9 are also provided A hood 11 resting on the container 1 encloses the sterilizing space for the gardening tools &c., which can be supported on a grid or perforated plate 10 resting loosely on the plates 6. The hood 11 has handles 12, a thermometer 14 and a flap 13 closing an opening through which the handles of long-handled tools may project.
Patent GB-258051-A (GB)
IPC: F16K24/06
Abstract: 258,051. Glenfield & Kennedy, Ltd., and Price, O. A. July 25, 1925. Vacuum relief valves.-Avacuum relief valve for use on large water mains and hydro-electric power penstocks has the inlet protected by a shroud or baffle 14 formed to present in conjunction with the valve chest a smoothly contoured annular passage in which the air accelerates to a maximum velocity so reducing to a safe limit the velocity of the air entering the valve. The valve member 1 co-operates with a seating 2 secured to the casing 3 and is carried by a spindle 5 secured to the moving cylinder 7 of a dashpot which in turn is connected by links 9 to counterweighted levers 10. The inner member 8 of the dashpot is secured to a superstructure 12 and is thin walled and only slightly less in diameter than the outer member so that in operation the drop of oil level is substantially the same in both inner and outer members. The outer member has metallic packing rings 18 and the inner member overflow openings 21. The bottom of the member 8 is fitted with a non-return valve 19 and a needle-valve 20 arranged to allow a rapid flow from the chamber 8 but only a restricted flow in the reverse direction. The annular passage in the shroud or baffle is divided up by radial ribs to prevent the entry of wind blown foreign material. In the form shown the valve member and seat have flat contacting surfaces and have their upper surfaces shaped to form a wedge-shaped groove so that should a film of ice form on said surface it cannot adhere thereto. Modifications are desscribed in which tapered seating surfaces are employed and in which the seat member is provided with drainage passages or shaped to present a substantially continuous self-draining surface.
Patent GB-136849-A (GB)
Title: Improvements in Spring for Controlling the Angular Movement or Oscillation of a Body about an Axis of Rotation.
Inventor: ANDRADE JULES
Filed: 1919-10-22
Abstract: 136,849. Andrade, J. Dec. 21, 1918, [Convention date]. B a l a n c e springs.- Four helical or flat spiral springs S, S', T', T of the same dimensions &c. are arranged in symmetrically formed pairs, all the springs being unstressed in one and the same position of the body and their geometrical axis coinciding with the axis of oscillation Z-Z of the body. The springs are attached to the oscillating body at the points V, V<1>, W<1>, W respectively. Two such groups of springs may be used, the eight springs being all of the same dimensions and one group closing when the other group opens. Such an arrangement is stated to be applicable for example to chronometers and precision spiral balance springs.
Patent GB-847390-A (GB)
Title: Ioniser
IPC: B23K9/073
Filed: 1957-08-17
Abstract: 847,390. Supply systems for welding arcs. HIRSCHMANN, F. Aug. 11, 1958 [Aug. 17, 1957], No. 26034/57. Classes 38 (2) and 38 (4). In a system for injecting a high frequency into a welding arc, the main welding current is supplied by a transformer 1 through a dustcored autotransformer 6, Fig. 1, to which the h.f. generator comprising a spark gap 8 fed from a transformer 7 is connected. The oscillatory circuit comprises a capacitor 9 and part of autotransformer 6 across the whole of which a tuning capacitor 10 is connected. A tapped choke 5 and a capacitor 11 prevents the flow of h.f. current to transformer 1. The autotransformer comprises a cylindrical coil 61, 67 wound on an insulating former 62 which encloses an iron dust core 63 held by the end plates 64 by a spacer 65 and a bolt 66.