baber/WOPTO huggingface dataset:
Patent GB-1380437-A (GB)
Title: Manufacture of lead styphnate
IPC: C07F7/00
Filed: 1972-06-09
Abstract: 1380437 Production of lead styphnate DEFENCE SECRETARY OF STATE FOR 6 June 1973 [9 June 1972] 27052/72 Heading C2C  Alpha normal lead styphnate is prepared by reacting at elevated temperature an aqueous solution containing lead cations with a solution containing styphnate ions in the presence of a mineral acid present in the range from about 1 to about 15 grammes of mineral acid per litre of the solution containing the styphnate ions. The solution containing the styphnate ions is preferably magnesium styphnate and the acid nitric, hydrochloric or sulphuric acid.
Patent GB-1459771-A (GB)
Title: Tillage implements
IPC: A01B73/04
Filed: 1973-06-07
Abstract: 1459771 Tillage implement BRITISH DEMBLON EQUIPMENT Ltd 17 June 1974 [7 June 1973] 27121/73 Heading A1B A tillage implement comprises a tool frame having a main section 10 supported on ground wheels or on a tractor and a pair of laterally extending wing sections 12 (only one shown) hinged to respective sides of the main section 10, a hydraulic ram 16 being provided for each wing section 12 for swinging the wing section 12 to a vertical transport position. A check chain 18 is releasably connected in parallel with the ram 16 to limit the swinging of the wing section 12 to an intermediate position to facilitate manoeuvring of the implement at field headlands when the tools are raised. A Divisional Specification 1460048 relates to the raising of the main section 10.
Patent GB-1428586-A (GB)
Title: Pipe track slider-hook
IPC: A22B7/00
Filed: 1974-06-19
Abstract: 1428586 Hooks H FESENMEYER J FESENMEYER [trading as FRITZ HIMMERMANN KG] 19 June 1974 [19 June 1973] 27255/74 Heading E2A A plastics hook device comprises a hook 1 for hooking over a rail and rotatably coupled to a load carrying hook 5 by a pin and socket connection. As shown, the pin 6 has an enlarged head 7 and is moulded to the hook 5 and the socket is formed in a socket member 2 of the hook 1 having a lateral opening 4, member 2 being strengthened by flanges 3 on two sides. The cooperating surfaces of the connection have metal bearing washers 8, 9 fastening to the head 7 and member 2 by anchoring projections 10, 11. The opening 4 may be tapered and after insertion of the pin can be closed by a correspondingly shaped stopper 12, Fig. 3 (not shown), glued or welded in position. Alter- .natively, the stopper snap engages with projections 14, Fig. 5 (not shown), on the socket member 2. The hook device may be constructed from glass-fibre, reinforced polyamide and hook 1 may have a sliding bearing of wearresistant material on its rail-contacting surface. The device may be for suspending meat.
Patent GB-704525-A (GB)
Title: Improvements in or relating to tractor parking brake controls
IPC: B60T7/02
Filed: 1952-10-31
Abstract: 704,525. Controlling vehicles. FORD MOTOR CO., Ltd. Oct. 31, 1952 [Nov. 6, 1951], No. 27462/52. Class 79(5) [Also in Group XXXIV] In a parking brake control for a tractor brake having a rotatable brake actuating shaft and pedal operated means connected to said shaft to rotate latter to apply the brake, a manually operated contro1 means is selectively movable between two preselected positions and thereafter is automatically operable upon depression of the brake pedal to either lock the brake in its applied or parked position or to release the brake from its applied position. The rear wheels 16 of a tractor 10 are provided with conventional brake units (not shown) each adapted to be applied by the rotation of a shaft 18 operated by foot brake pedal 22. A parking brake control arm 28 is non-rotatably secured to one of the shafts 18 and carries, at its opposite end, a rotatable pin 40 to which is secured at its inner end a pawl 46 engageable with a fixed rack member 54 mounted on the tractor chassis 12. Rotatably mounted upon the outer end of pin 40 is a control lever 60 fitted with an arcuate flange 64 which engages an abutment pin 70 rigidly mounted at the end of pin 40 and projecting a sufficient distance radially beyond one side of pin 40. When it is desired to park the tractor, the pawl 46 is engaged with rack member 54 by mutually rotating lever 60 to the position shown in Fig. 4. When the foot brake pedal 22 is subsequently depressed, the pawl 46 is kept in engagement with rack member 54 by means of the weight of the overhanging portion 66 of the control lever 60. When it is desired to release the tractor brake from its parked position, the control lever 60 is first manually rotated in' a counterclockwise direction from the position shown in Fig. 4 to the position shown in Fig. 2. Slight depression of foot brake pedal 22 to rotate the shaft 18 and the brake control arm 28 in a clockwise direction to release pressure between the pawl teeth and the rack teeth results in the overhanging weight of the control lever 60 being effective in swinging both the lever 60 and the pawl 46 to the position shown in dotted lines in Fig. 2 and thus releasing the brake from its applied position.
Patent GB-257447-A (GB)
Title: Improvements in or relating to coats
IPC: A41D3/02
Filed: 1925-11-03
Abstract: 257,447. Rosenberg, C. J., and Swears & Wells, Ltd. Nov. 3, 1925. Coats.-For securing a detachable lining in place an overlying flap 11 is provided on the coat and provided with inside press fastening elements 14 co-operating with corresponding elements 16 on the lining 15. The elements 14 may be secured to the material of the coat beneath the flap. The flap may be formed as a continuation of the front facing of the coat and may be stretched at 12 to leave a fly part 13 for the fasteners.
Patent GB-244246-A (GB)
Title: Manner and method of the manufacture of meal for making of wholemeal bread
IPC: A21D13/02
Filed: 1924-11-20
Abstract: 244,246. Hitchcock, R. Nov. 20, 1924. Processes for reduction of grain.-In preparing meal for wholemeal bread, the wheat is ground and the bran saparated. The bran is separately ground and re-mixed with the flour. Reference has been directed by the Comptroller to Specifications 2461/82 and 20799/95.
Patent GB-188903-A (GB)
Title: Improvements relating to the manufacture of hexagonal nuts
IPC: B21K1/64
Filed: 1921-10-19
Abstract: 188,903. Wiley, E. J., and Wiley & Sons, Ltd., J. Oct. 19, 1921. Forging nuts; dies.-In a process for the manufacture of hexagonal nuts from bar stock without the formation of outside scrap, a fixed hexagonal die a coacts with cam-operated tools b, c, respectively provided with cam-operated punches d, e, the actuating mechanism being so arranged that the tools and punches are first advanced together in the compressing operation, and then while the tools are stationary one or both punches advances into the blank to complete the shaping operation. The heated bar g of width equal to the length of a side of the hexagon to be formed is fed up to a stop f on the die and a blank is severed by the tool c and compressed to fill the die approximately as shown in Fig. 6. The punch d is then advanced to complete the shaping of the blank, whereupon both punches are moved to the position shown in Fig. 9 to complete the hole in the blank. The tools are then separated, the tool b being finally advanced to eject the finished nut while the punch e ejects the burr i in readiness for the next series of operations.
Patent GB-654236-A (GB)
Title: Improvements in or relating to the preparation of beta-propiolactone
Filed: 1945-10-22
Abstract: Beta-propiolactone is obtained by reacting ketene with formaldehyde in the presence of a catalyst comprising as an essential component a mixture of an aluminium halide with a minor proportion by weight of a zinc halide.  A ferric halide may also be present in admixture with the zinc halide.  It is preferred to use about one part by weight of aluminium halide with from 0.03 to 0.5 part by weight of the zinc halide and when ferric halide is also present a preferred catalyst contains the same relative weights of aluminium chloride and zinc chloride together with 0.05 to 0.15 part of ferric chloride.  The reaction may be effected in the vapour phase or in solution.  A carrier, such as silica gel, activated charcoal or diatomaceous earth is best employed in conjunction with the catalyst in vapour phase reactions.  The reaction is preferably effected at below 30 DEG  C. and any of the solvents specified in Specification 649,028, and also ethylene dichloride, may be used.  Beta-propiolactone may itself be used as solvent as in Specification 654,235.  An example is given which is identical with the example in Specification 654,235.  The Specification as open to inspection under Sect. 91 is not restricted to the production of beta-propiolactone but refers to all the beta lactones obtained from the ketenes and carbonyl compounds specified in Specification 654,235, as open to inspection under Sect. 91, and to the use of such beta-lactones as solvents for the reaction.  This subject-matter does not appear in the Specification as accepted.
Patent GB-883891-A (GB)
Title: Improvements in or relating to treatment of materials, such as the drying of paper
Inventor: COAR RONALD
IPC: D21F5/02
Filed: 1958-08-30
Abstract: 883,891. Drying-cylinders of paper-making machines &c. SPOONER DRYER & ENGINEERING CO. Ltd. Aug. 21, 1959 [Aug. 30, 1958], No. 27902/58. Class 96. A web of paper 10 is pressed against a drying cylinder or a machine glazing cylinder 12 by rollers 13, 14 and subjected to high-speed jets of hot air &c. discharged from openings 23 in a series of pressure compartments 16 ... 20 in a hood 15, the air being re-circulated, by axialflow fans 30 driven by motors 34, via exhaust compartments 26 ... 29, steam heaters 32 &c. and compartments 67, 68, 69. The jets are directed over the surface of the paper towards the exhaust compartments, the last of which, 29, has an outlet 22 leading to a heat-exchanger for pre-heating the inlet air either directly or with the use of water as an intermediate, and a further heat exchanger. Thereafter, the inlet air may be further heated by a live-steam heater, and led into the hood at 21. Spring-loaded panels 601 may be opened by piled up paper, and facilitate removal of torn paper after a break. Trap-doors in these panels allow access to the exhaust compartments 27 &c. Lamps and inspection windows and doors in side-ducts are provided. Specification 883,892 is referred to.
Patent GB-218177-A (GB)
Title: Improvements in or relating to rubber surfaced roads and flooring
IPC: E01C5/18
Filed: 1923-11-06
Abstract: 218,177. Read, C. W. Nov. 6, 1923. Flooring blocks.-Rubber pads for road surfaces are formed as channel-shaped members a, which are placed in position, without the use of any adhesive or binding agent, upon a prepared, hard set, and dry bed of concrete b formed with channels b' to receive the adjacent flange a<1> of two adjoining pads. The fianges may be of uniform thickness, as shown, or they may taper inwardly or outwardly. A protective coating of bitumen, which is allowed to set before laying the pads, may be applied to the concrete surface.
Patent GB-978176-A (GB)
Title: Improvements in or relating to nuclear reactors
IPC: G21C3/18
Filed: 1962-07-19
Abstract: 978,176. Controlling reactors. GENERAL DYNAMICS CORPORATION. July 19, 1962 [Aug. 2, 1961], No. 27909/62. Heading G6C. A nuclear reactor core contains selected neutron absorption materials such as to give to the reactor at temperatures in excess of 1200C. a negative temperature coefficient of reactivity. The preferred materials are plutonium 240, rhodium 103, and erbium 167, and they may be contained within the reactor fuel elements, or otherwise positioned at points throughout the reactor. Plutonium 240 may be formed in the reactor from U238. The invention is particularly applicable to graphite moderated gas cooled reactors, in which may be used a fuel element comprising an outer graphite tube containing a plurality of annylar fuel pellets mounted on a central spine of graphite. The selected neutron absorber, or mixture thereof, may be uniformly distributed through either the fuel pellets or the graphite spine. Placing the neutron absorber directly in the fuel elements has the advantage that there is no delay in its effect of decreasing reactivity as the fuel temperature rises, as would be the case when heat transfer would have to take place through the gas (e.g. helium) to increase the absorber temperature. It is a feature of the materials chosen that they provide a substantial negative contribution to the coefficient of reactivity only at temperatures at or in excess of 1200C., and are compatible with all other components of the reactor at such temperatures.
Patent GB-977168-A (GB)
Title: Improved centrifugal dryer
IPC: D06F49/02
Filed: 1961-08-02
Abstract: 977,168. Spin-driers. C. SOMVILLE. Aug. 2, 1961 [Aug. 25, 1960], No. 27969/61. Heading F4G. A spin-drier basket which may be of P.V.C. or light metal alloy has a truncated conical body part 1 provided with apertured hollow discharge ribs or channels 5 which extend from top to bottom of the basket in straight, curved or helicoidal lines. The body part 1 has a lower radially-extending peripheral rim 3 secured as by rivets 8 to a flange 7 of a lower stamped dished part 2 which has reinforcement ribs of substantially triangular shape with a rounded apex.
Patent GB-1194324-A (GB)
Title: Hydraulic Vehicle Transmission Systems.
Inventor: FREEMAN FRANK GEORGE
IPC: F16H61/42
Filed: 1966-06-23
Abstract: 1,194,324. Controlling hydraulic variable-ratio gears. JOSEPH LUCAS (INDUSTRIES) Ltd. 1 Sept., 1967 [23 June, 1966], No. 28141/66. Heading F2D. In a motor vehicle hydrostatic transmission, e.g. of the type described in Specification 1,117,785, including an engine-driven variable displacement swashplate pump driving a fixed displacement swashplate motor, a pump displacement control servo 9 is actuated in accordance with engine accelerator pedal 29 position and the pressure in the main fluid line from the pump to the motor. The input member of servo 9, movable leftwards and rightwards from a central neutral position to increase pump displacement from zero for forward and reverse drive respectively, is pivoted at 40 to an arcuate slotted lever 21 having a fixed pivot 22. Accelerator pedal 29 is connected via a push rod 28, a compression spring 26, and a link 24, to a lever 18 having a fixed pivot 23. A link 16, pivoted at 17 to the lever 18 and having a pin 19 engaging the slot 20 of lever 21, is positioned by a manual forward-neutral-reverse selector 11 so that the pin 19 engages one end of the slot 20, as shown, for forward drive, the other end for reverse, and the centre, with pin 19 and pivots 22, 17 in alignment, for neutral. A member 42 on link 16 engages a surface 43 of lever 21 at the neutral position to lock the lever 21. An arm 33 on lever 21 is engaged by plungers 34, 35 acted upon by fluid pressure in the supply and return lines respectively of the transmission. A spring 31 counteracts the effect of reversal o pressures during overrun,. During forward drive, depression of the pedal 29 urges lever 21 anticlockwise to increase pump displacement and supply line pressure on plunger 34 urges lever 21 clockwise. In reverse, pedal 29 depression urges lever 21 clockwise to increase pump displacement and supply line pressure on plunger 35 urges it anticlockwise. Pump displacement is limited in reverse. The lever system may be connected electrically to the servo 9.
Patent GB-443042-A (GB)
Title: Method for the manufacture of velvet articles
IPC: D03D39/00
Filed: 1934-10-02
Abstract: 443,042. Pile fabrics. SOC. ANON. ETABLISSEMENTS MOTTE-BOSSUT FILS, 58, Boulevard Gambetta, Roubaix, France. Oct. 2, 1934, No. 28160. Convention date, Oct. 27, 1933. [Class 142 (iv)] Several pieces of fancy velvet are produced simultaneously by weaving pile or covering threads 3, 4, into a main fabric T<2> at l, and into one or more supplementary fabrics T <1> at s, cutting the threads on the surface of the supplementary fabric, and separating the fabrics as shown in Fig. 3, the threads bound into the main fabric being drawn through the fabric T<2>. The method is shown applied to weft pile velvet, but may be applied to warp pile fabrics woven with wires and also to double piece weft pile or velvet. As shown in Figs. 6 and 7 it may be applied to double piece warp pile velvet, wherein the pile threads c interweaving with the main fabrics T\ T<2> also interweave with one or more supplementary fabrics T<3>, so that three or more pile fabrics P<1>, P<2>, P<3> result after the pile threads are cut.
Patent GB-990370-A (GB)
Title: Improvements in or relating to cameras
IPC: G03B19/18
Filed: 1961-08-04
Abstract: 990,370. Cine cameras having cassettes. EASTMAN KODAK CO. Aug. 4,1961 [Aug. 8, 1960],No. 28390/61. Heading G2E. In a motion-picture camera of type adapted to receive a removable film cassette, co-operating means on the camera and on the cassette are provided to ensure correct attachment of the cassette to the camera at all times. The film is of the double-run 8 mm kind. As shown,a pair of contacts 31, 32 are provided in the camera body in series with an electric driving motor (not shown) which is drivingly connected to a shaft 9. Contact 31 is carried by a flexible blade 28 which has a projecting portion 34. Before attachment of a film cassette 5 to the camera, the projection 34 engages in a notch 27 in a disc 25 mounted on a rotatable shaft 16 and the motor is open circuited. On attaching the cassette 5 to the camera a boss 48 engages with a spring-urged button 44, and, by way of a flexible blade 46 supporting said button and a disc 35 having an abutment edge 38 engaged by said blade 46, the shaft 16 and disc 25 are rotated a small amount to bring the contacts 31, 32 together. The camera may now be operated for exposure of the first longitudinal half of the film in cassette 5 by actuation of a switch (55 in Fig. 3, not shown) in series with the contacts 31, 32. During feeding of the film, the shaft 16 is rotated by transmission mechanism comprising a spiral gear 11 on the shaft 9,a pinion 13, a shaft 12, a worm 14 a worm gear 15 and a one-way helical spring clutch 18. It is arranged that when the end of the film is reached the shaft 16 has been rotated through 180 degrees so that a second notch 26 on disc 25 registers with projection 34 to cause open circuiting of the driving motor and, further, so that an abutment edge 4 of a disc 36 mounted on the shaft 16 is brought into position to be engaged by a blade 47. Blade 47 in a manner similar to blade 46 supports a spring-urged button 45 but the cassette 5 is provided with a recess 49 so that this button is not actuated during exposure of the first half of the film. However, after the cassette has been removed and inverted (so that side 53 is lowermost) a recess 52 now comes into registry with the button 44 and a boss 51 into registry with the button 45-as shown in dash-dot fashion in Fig. 1. The cassette may now be re-inserted into the camera for exposure of the second longitudinal half of the film. A manually actuable reset disc 56 is provided on shaft 16 together with a footage indicating disc 19, a portion of which is visible at a time in a view finder mask 22 provided with an index mark 20.
Patent GB-1018001-A (GB)
Title: Improvements relating to oil circuit breakers
Inventor: ROXBURGH ALBERT
IPC: H01H33/32
Filed: 1961-08-04
Abstract: 1,018,001. Automatic circuit breakers; liquid blast switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 3, 1962 [Aug. 4, 1961], No. 28395/61. Heading H2B. In a circuit breaker having contact rod 18, Fig. 1 (not shown), immersed in an insulating liquid in a chamber 10, the static pressure of the liquid is increased during contact opening by a piston 6, a valve 11 being provided between the chamber 10 and an overflow space 23 to close an outlet when the pressure exceeds a preset value and a relief valve 12 preventing excessive pressures. Contact rod 18 is moved to the open position by a linkage 17 under the action of a spring 16 when a latch 14 releases a lever 44 for pivotal movement. Latch 14 is removed by energizing a solenoid 31. At the same time another solenoid 30 operates a valve 61 to supply compressed air of a reservoir 4 to a cylinder 5 which is linked to piston 6 to pressurize the oil in chamber 10. The breaker is reclosed by energizing a third solenoid 46 which through a lever 24 operates a valve 60 to supply air from reservoir 4 to cylinder 27 moving a piston 45 to pivot lever 44. The pivot of lever 24 comprises a member 28 removable by the solenoid 31 so that solenoid 46 is ineffective to close the breaker while the solenoids 31, 30 are energized. The latter may be energized either through a manual switch 32 or through a protective relay. In a modification solenoid 30 is omitted, the valve 61 being actuated mechanically by the link 44. In another modification valve 12 is placed on the wall of chamber 10, the space 9 being divided by a partition so that oil directly surrounding the chamber 10 is not pressurized by the piston 6.
Patent GB-816704-A (GB)
Title: Coating casein films
IPC: B05D7/04
Filed: 1955-10-05
Abstract: A nitrocellulose lacquer comprises a mixture of 10 parts by weight of a composition containing 20 per cent low viscosity nitrocellulose, 10 per cent oily phthalic acid resin, 3 per cent dibutyl phthalate, 9 per cent castor oil, 10 per cent butanol, 20 per cent butyl acetate, 8 per cent hexalin acetate, and 20 per cent toluene, with 30 parts by weight of a composition containing 6 per cent formamide, 25 per cent butyl acetate, 25 per cent toluene, 25 per cent ethyl acetate, and 19 per cent alcohol.
Patent GB-827909-A (GB)
Title: Improvements in or relating to the cloth guide control of sewing machines
IPC: D05B35/10
Filed: 1957-09-10
Abstract: 827,909. Sewing machines. PFAFF A.G., G. M. Sept. 10, 1957 [Sept. 14, 1956], No. 28476/57. Class 112 A control is moved laterally to raise lever and lower the presser foot and vertically to operate electrical means effecting the displacement of a cloth guide. The control level comprises a knee stirrup 15 axially slidable along a lever 13 pivoted at 12 to the table 1. Lateral movement of the stirrup about the pivot 12 deflects a lever 10 to raise the presser bar 4 by means of members 6, 7, 8, and 9, while movement of the stirrup axially along the lever 13 operates a switch 21 to energize a solenoid 22, the armature of which then displaces, by means of a cable 24, the work guide 23. The guide and the presser bar are each spring loaded to return to their original positions when the stirrup returns to its undeflected position.
Patent GB-690583-A (GB)
Title: Lubricated valves
Inventor: LEACH EDWARD BLACKWELL
IPC: F16K3/36
Filed: 1950-11-22
Abstract: 690,583. Lubricating valves. AUDLEY ENGINEERING CO., Ltd. Oct. 12, 1951 [Nov. 22, 1950], No. 28510/50. Class 135 In a valve construction. lubricant is conveyed to the distributing grooves formed on the surface or surfaces of the valve closure member through a valve operating spindle which is formed separate from but connected to the valve closure member means being provided after the grooves are filled to spill excess lubricant into a valve body chamber. As shown, a valve spindle a Fig. I having a reservoir d connected by a passage d<SP>1</SP> with a recess k, mounts hollow telescopic parts m, n urged apart by a spring o into engagement with the recess and a complementary recess l formed in the top of a rotary plug cock b. The recess l is connected by passages f with distributing grooves j. Should pressure in the grooves rise above that of the spring o the part n will be unseated to spill excess lubricant into a valve chamber above the cock. Alternatively a loose-ball check valve may be fitted in one of the passages f to spill the excess lubricant. The telescopic parts m and n and the spring o may be fitted to the hollow operating spindle of a rotary disc valve or a sliding gate valve to spill excess lubricant from the distributing grooves.