baber/WOPTO huggingface dataset:
Patent GB-253505-A (GB)
Title: Improvements in or relating to electron discharge tubes
IPC: H01J21/10
Filed: 1926-05-21
Abstract: 253,505. Siemens - Schuckertwerke Ges. June 15, 1925, [Convention date]. Vacuum tubes.-In a valve having a filament in several lengths arranged non-axially of the anode, one or more auxiliary electrodes are maintained at such a potential that the electrostatic force on the filament due to the anode is eliminated. As shown, the filaments 2 are arranged in the form of a cylinder concentric with the anode 1 and with an inner cylinder 5 connected with the anode. The radius of the filament cylinder is the geometrical mean of the radii of the inner and outer electrodes. The lengths of filament may be in series or parallel, and a continuous length may be wound zig-zag; a control electrode may be mounted on each side of the filament. The valve is mounted in a jacket 6, and cooling liquid circulates as indicated by arrows. The electrodes may be of polygonal or elliptical section, and may be prismatic. In a modification the auxiliary electrodes consist of two conductors mounted parallel with the filament. In another arrangement the inner electrode has concave portions opposite to each length of filament.
Patent GB-979635-A (GB)
Title: Travelling suction cleaning apparatus
IPC: D01H11/00
Filed: 1962-04-05
Abstract: 979,635. Removing lint and fibre waste in industrial processes. PARKS - CRAMER (GREAT BRITAIN) Ltd. April 5, 1962 [April 24, 1961], No. 13086/62. Heading F4X. [Also in Division D1] An overhead suction cleaning apparatus 10, e.g. for removing lint and fibre waste from the floor of a room containing a plurality of textile machines, comprises a carriage 11 mounted on wheels 12 and 13 which run on tracks 14 and 15, at least one suction nozzle 29 (Fig. 1) communicating with the suction side of fan 23, at least one outlet duct 32 or 33 and at least one collection chamber 34 or 35 mounted to travel with the fan 23. As shown, the apparatus 10 travels over textile machines 20. Fan 23 is rotated by a motor 21 and sucks in fibre-laden air via nozzles 29, flexible tubes 27, 28, inlet ducts 26, 25 into a casing 22 from which it is sucked through opening 22b into fan easing 22a. Fan 23 then discharges the air stream and material through outlet ducts 32, 33 into collection chambers 34, 35 where the air escapes through screens 36, 37, 38 and 39. Baffles 40, 41 direct the air stream in such a manner that the air currents within the chambers 34, 35 assume a circular path, creating a low pressure area in the central portions of said chambers, thus causing the waste material to be deposited in the centre of the chambers and away from the screens. The collection chambers are substantially cylindrical with vertical axis and the ducts 32, 33 are offset with respect to the axis of the chambers in order to help create the circular movement of the air. At spaced points along tracks 14, 15 a screen cleaning device 62 may be incorporated. The device 62 comprises an air supply pipe 63 and pipes 64, 65, 66 and 67 which are so positioned that when the collecting chambers move past said points on the tracks, openings formed in the pipes immediately overlie the screen members 36, 37, 38, and 39 respectively. Air is blown through the screens via pipe 63, the flow of air being controlled by a valve 71. Valve 71 is operated by a solenoid 72 which is controlled by a box 73 having timing means for maintaining solenoid 72 energized for a predetermined length of time after initial energization. A switch 74 mounted on a bracket 16 on the side of track 15 initiates the energization of the solenoid and this is triggered by a feeler arm 75 mounted thereon being engaged by an extension 76 mounted on the side of wheel 13.
Patent GB-1460171-A (GB)
Title: Magnetically operated switch unit
IPC: G01F23/38
Filed: 1974-03-25
Abstract: 1460171 Movable magnet switches BESTOBELL MOBREY Ltd 19 March 1975 [25 March 1974] 13127/74 Heading H1N In a float switch, displacement of a float 11 due to changes in fluid level causes pivotal movement of a permanent magnet 13 which by magnetic influence through a non-magnetic wall 5 causes pivotal movement of a permanent bar magnet 31 in a carrier, this carrier having portions which co-operate with tongues 36 integral with contact carrying spring blades 25 clamped in a fixed block 24 and associated with a spring 38 such that the pivotal movement of the magnet 31 and its carrier causes the spring blades 25 to snap between one or other of two extreme positions at one or both of which are fixed contacts 27 so that contact between them and the movable contact 26 on the blades is made or broken. The fulcra of the bar magnet carrier are provided by extensions 30 of the spring blades 25 in the fixed block 24. The contact carrying ends of the spring blades 25 may be joined in which case only one spring 38 is needed. Reduction of the torque required to pivot the bar magnet can be obtained by biasing the bar magnet to a central position by means of springs or adjacently positioned magnets.
Patent GB-131288-A (GB)
IPC: F42B30/08
Abstract: 131,288. Brandt, E. Aug. 10, 1918, [Convention date]. Projectiles. - Relates to projectiles provided with tails secured thereto by soldering, welding, or spinning. According to the invention, one of the elements, i.e. the projectile or the tail, is provided with a recess into which extends a projection on the other element, and these engaging parts are secured by soldering, welding, or spinning. As shown in Fig. 4, a dovetailed head a<2> on the tail fits into a recess in the base b<2> of the projectile, which is spun over the head a'.
Patent GB-101546-A (GB)
Title: An Improved Flexible Shaft Coupling.
Inventor: SCHAUFFELBERGER EMIL
IPC: F16D3/52
Filed: 1916-09-18
Abstract: 101,546. Schauffelberger, E. Sept. 22, 1915, [Convention date]. Shaft couplings; clutches, claw.-The driving and driven members of a shaft coupling are connected by a flat, sinuous, resilient band or strip. In the form of coupling shown, the members a, b, are connected by the sinuous steel band e, which engages projections d and is enclosed by a cover f. In modifications, the band e passes round pins parallel to the shaft on the two members a. b, or is rigidly attached to one member by casting or otherwise and engages projections on the other member. Oil may be placed inside the coupling to minimize friction and heating. One of the members a, b may he movable axially on its shaft to disconnect the coupling. The Specification in the original form, as open to inspection under Sect. 91 (3) (a), stated that one of the coupling members might be movable axially on its shaft to form a clutch. This subject-matter does not appear in the complete Specification as accepted.
Patent GB-946329-A (GB)
Title: Radio navigation apparatus
Inventor: ASTERAKI JOHN DIMITRI
IPC: G01S3/14
Filed: 1961-04-13
Abstract: 946,329. Radio navigation. MINISTER OF AVIATION. June 7, 1962 [April 13, 1961], No. 13291/61. Heading H4D. In a system wherein the distance between a highly stable transmitter and a receiving station is determined by comparing at the receiver the phase of the signal received from the transmitter with that from a highly stable local oscillator, the receiver channel devoted to the signal received from the transmitter and that devoted to the signal from the local oscillator, are substantially identical such that any phase disturbances in the two channels substantially carried out. The receiver, Fig. 2 (a), may be of the superheterodyne type employing a common oscillator 7, with the received signal channel comprising an R.F. amplifier 5, a mixer 6 and any I.F. amplifier 8 and the local signal channel comprising corresponding items 12, 13 and 14. The high local stability oscillator 10 may be a Colpitts-type controlled by a quartz crystal vibrating in an overtone mode to give a 5 mc/s. signal. The 5 mc/s. signal is frequency divided into a 100 c/s. pulse signal and the pulses are applied to shock excite a very high Q-tuned circuit in the R.F. amplifier 12, to produce oscillations at the transmitter frequency. Both the high stability oscillator 10 and the receiver I.F.'s are enclosed in temperature controlled ovens and the entire receiver is enclosed in temperature controlled means, whilst the phase detector shown in Fig. 2 (a) measures the difference in the phase of the I.F. amplifier outputs, which is then transferred into a distance indication at 7, Fig. 2 (b), shows an alternative phase detector wherein a phase shift is introduced at 19 into one of the I.F. outputs and the detector 16 produces the vector sum and the vector difference of the outputs of the I.F. amplifier 14 and the phase shifter 19 and feeds them, via amplifiers 20 and 21 to two windings 22 and 23 of a motor having its shaft controlling the phase shifter 19. A servo-action is produced having a stable state when the sum and difference signals are equal. The position of the motor shaft can then be used to indicate the required distance.
Patent GB-133502-A (GB)
IPC: B24D15/08
Abstract: 133,502. Humphryes, W., and Walker, Ltd., J. Nov. 6, 1918. Razors, stropping. Relates to devices for holding and stropping blades of the Gillette type in which a central handle 2 carries a frame 1 supporting in bearings a roller 5 geared to the spindle of a blade-carrying fiap 8, this flap being turned over from one side to the other when the whole device is moved to and fro on a strop 21 engaging with the roller 5. The blade 9 is clamped on the flap 8 by a plate 10 made with projections 11, which pass through holes in the blade and flap. The projections are engaged by a cotter passing through holes formed in them, or by a locking- plate formed with keyhole slots and adapted, when placed on the projections and moved endways, to engage with saw-cuts in the projections. The projections may be raised out of the substance of the plate 10; or they may be made separate therefrom and be fixed thereto. In a modification, the projections are on the flap 8 and pass through holes in the plate 10. The handle 2 is a metal tube shouldered down at 20 and inserted in a hole in the frame 1 and secured by spreading out its end, as shown.
Patent GB-276428-A (GB)
Title: Improvements in machine tools for boring non-circular holes
IPC: B23Q35/10
Filed: 1926-05-26
Abstract: 276,428. Jennings, I. C. May 26, 1926. Lathes.-In a metal-cutting machine-tool for boring non-circular holes having a revolving work-holder and a cross-rail upon which a toolcarriage slides loosely, the latter is provided with an attachment which engages a cam secured to the work in order to control the position of the tool as the work rotates. As applied to a boring- mill, the work W is secured to the rotary table A and the cross-slide D, which carries a tool-ram E and is freely slidable on a rail C, is provided with a bracket 10 carrying a slide 11 on which is mounted a roller 15 engaging an annular cam 21 secured to the work. In operation the top of the work is first faced and bored and then a flange 18 having a part 19 accurately fitting the bore of the work is secured by bolts 20, the cam 21 being attached to the flange 18 by screws 22. The roller 15, which is preferably mounted by a ball-race on a pin 16, is maintained in contact with the cam as the work rotates by a spring 23, and the ram is fed downwards by the usual feedgear. The depth of cut is adjusted by a handwheel 14 actuating a screw 13 which engages a nut 12 on the roller carrying slide 11. Rigidity of the device is assured by having the points of contact between the roller and the cam and between the tool and work, both on the same side of the centre of rotation, and both in direct opposition to each other.
Patent GB-1331708-A (GB)
Title: Liquid atomizer
IPC: B05B3/10
Filed: 1971-05-05
Abstract: 1331708 Liquid atomiser NIRO ATOMIZER AB 5 May 1971 [15 May 1970] 13369/71 Heading B2F In a liquid atomiser, a rotatable vertical shaft 3 supports a liquid distributor 7, 8, and a coaxial cup-shaped atomiser wheel 2 having a plurality of uniformly distributed ejection apertures 4 in a lateral wall thereof. The distributor is formed of two members 7, 8 which have coextensive external and internal walls respectively, helical ducts 6 being formed in one of the surfaces for passage of liquid from conduit 5 to wheel 2. An annular conduit is formed between member 7 and member 9 which conduit is conical with a downwardly diminishing diameter except for a very short section at the lower end of the conduit which as shown, is conical with a downwardly increasing diameter. The inner edge of the annular conduit extends below the outer edge to protect the shaft and bearings against splashes.
Patent GB-397440-A (GB)
Title: Improvements in and relating to welded joints for hollow metal bodies, particularly pipe joints
IPC: F16L13/02
Filed: 1933-05-08
Abstract: 397,440. Uniting by fusion. DIETRICH ROHRLEITUNGSBAU AKT.- GES., E. O., 2, Leopoldstrasse, Bitterfeld, Germany. May 8, 1933, No. 13386. Convention date, May 9, 1932. [Class 83 (iv).] A welded joint between hollow bodies such as pipes consists of internal and external seams varying in cross section from a maximum to a minimum in inverse ratio to one another. The external seam c has its largest cross section at the top of the point and merges to a minimum at the bottom, whereas the cross section of the interior seam d is largest at the bottom of the joints. The respective seams may be in the same transverse plane, or in different transverse planes. The plane or planes may also be inclined to the axis of the pipe. In Fig. 5 the ends of the pipe are in contact and are provided with an external butt strap e of uniform thickness and an internal butt strap f of variable thickness inserted in a recess in the pipes. The tapered seams c, d are effected between the edges of the straps and the pipes. To join pipes which are not in alignment, the pipe b may be formed with a spherical spigot g engaging a similar recess in the pipe a. A tube bend may comprise a series of segments similarly welded to each other by internal and external tapered seams.
Patent GB-277259-A (GB)
Title: Improvements relating to skips
IPC: B65F1/12
Filed: 1927-05-18
Abstract: 277,259. Nixon, J. B. May 18, 1927. Skips.-The bottom doors b hinged at c are connected to the bail m, k by slotted links f or the like, and the ends of the bail move in channel guides q projecting upwardly from the bucket. Weighted pawls r pivoted at r<1> in the guides, take over the bail when the bucket is set down, so that on lifting the bucket the doors fall open as shown in Fig. 3. For lifting the bucket again with the doors closed as in Fig. 1, the pawls are turned aside whilst the bail is lifted past them. The two pawls are connected by a transverse rod u so as to move simultaneously. A second lifting rope may be attached to the bucket, for example at the top of the guides q, so that the doors may be opened and closed in mid-air, and the pawls may then be secured out of the way.
Patent GB-528371-A (GB)
Title: Process for the resolution of the racemic condensation product from phytyl halides and trimethyl hydroquinone
IPC: C07D311/72
Filed: 1939-05-05
Abstract: 528,371. α-Tocophenol; vitamins. HOFFMANN-LA ROCHE & CO., AKT.-GES. F. May 5, 1939, No. 13458. Convention date, May 24, 1938. [Class 2 (iii)] The racemic condensation product from phytyl halides and trimethyl hydroquinone is resolved by converting it into the 3-bromcamphor sulphinate and subjecting the product to a fractional crystallization. In the example, 1 part of the condensation product between phytyl bromide and trimethyl hydroquinone is dissolved in pyridine and 3 parts of 3- bromcamphor sulphochloride added. The solution is heated and then poured on to ice and extracted with ether. The ether solution is washed, and evaporated and then allowed to stand whereby the bromcamphor sulphonate of α-tocophenol crystallizes. The bromcamphor sulphonic acid is removed by alkaline saponification and the product is identical with natural α-tocophenol.
Patent GB-134653-A (GB)
IPC: A47J31/14
Abstract: 134,653. Coles, F. J. Nov. 26, 1918. Pots.-In a tea-pot provided with a strainer of the type adapted to be held in place by a spring fork engaging with a part of the pot, the strainer a is secured to an horizontally projecting ledge d at the bottom of the spout. The spout is short, as shown, and the strainer is inserted from beneath, the prongs b of the fork, which are bent to engage with the ledge d, projecting upwards into the spout.
Patent GB-184563-A (GB)
Title: A new or improved composition for use in the manufacture of buttons and other articles
IPC: C08L91/00
Filed: 1921-05-12
Abstract: 184,563. Devonshire, G. C., and Foord, E. T. May 12, 1921. Plastic compositions containing bone.-A composition for making buttons, insulators, and other articles, consists of 12 parts of ground bone, 3 parts of casein, and 2 parts of lime, with or without 1-2 parts of sodium silicate, sufficient water being added to produce a plastic mass.
Patent GB-1288172-A (GB)
IPC: B22D11/06
Filed: 1971-05-06
Abstract: 1288172 Continuous casting PROLIZENZ AG 6 May 1971 [8 May 1970] 13505/71 Heading B3F In a continuous strip casting machine in which two circulating endless series 10, 11 of mould parts 12, 13 co-operate to form a mould, a pair of electrically-insulated contact wires 23 (with uninsulated tips) are clamped between two successive mould parts and casting is started by permitting a flow of melt into the mould until the wires are short circuited and emit a signal, e.g. from a lamp 25, and then setting the mould in motion. The mould parts 12, 13 are preheated and sprayed with a graphite coating. A tundish stopper 18 is removed to start flow through a spout 19. The melt reaches the contact wires 23 (at an experimentally-determined location) in the stationary mould and the space between the wires and a dummy bar 20 is filled while the mould parts accelerate to speed. The mould cavity may be horizontal, inclined or vertical. The process may be maintained by automatic regulation of the level in the tundish 17 and the machine may be tilted after starting as described in co-pending Specification 26973/71. The mould blocks are sprayed for cooling, in a region of reduced air pressure, as described in Specification 1,186,466, an exhauster and pump being switched on when the mould is set in motion.
Patent GB-459020-A (GB)
Title: Improvements in the production of metal bottles for the manufacture of tubes
IPC: B21J9/04
Filed: 1936-05-13
Abstract: 459,020. Billet - piercing. ALFINA IMMOBILIEN-, FINANZIERUNGS & VERWALTUNGS. AKT.-GES., Glarus, Switzerland. May 13, 1936, Nos. 13575 and 13576. Convention dates, Feb. 17 and March 9. [Class 83 (iv)] Relates to a process and apparatus for piercing blanks with a tapered bottom for tube drawing by means of a mandrel forced into a glowing blank not completely filling the crosssection of a matrix, and consists in subjecting the blank in the region surrounding the piercing mandrel to a continuous feed pressure acting parallel to the pressure of the mandrel, thereby assisting in overcoming the friction against the walls of the matrix. Means are employed to centre the blank before piercing. As shown, the blank is placed in a matrix a of tapered form and provided at its base with an ejector r. A feed ring c surrounds the mandrel b and may have wedge-shaped surfaces h for centring the blank. The ring is carried by a cross-bar e attached to pistons d operating in cylinders f which communicate with a supply m of compressed air by means of a valve v. A second valve W loaded to a greater pressure and adjusted by a control x determines the maximum pressure acting in the cylinders f. The mandrel is operated by a plunger after the feed ring c is pressed against the blank and on retraction of the mandrel, the feed ring strips the blank which remains in the matrix until ejection by the rod r.
Patent GB-202055-A (GB)
Title: Improvements in steam traps
IPC: F16T1/24
Filed: 1922-05-15
Abstract: 202,055. Hutchinson, r. Le C. May 15, 1922. Steam traps.-A float-actuated steam trap, particularly adapted for use with steam radiators, has the float indirectly connected with the water exit valve and directly connected by means of levers with the steam inlet valve. Condensation from the radiator enters the trap through a connection 11, raises a floating ball 20 from a seat 19, and passes into a chamber 21, where it raises a float 23. This float is guided by the spindle 24 of the discharge valve 25, and is connected by a link 33 to a counterweighted lever 41 adapted to engage a collar 35 on a tumbler 34. The tumbler has an arm 37 arranged to engage a collar 36 on the valve spindle to open the valve, and has a cam surface 40 adapted to release a catch 39 to permit the valve to close. The lever 41 is also connected by means of a lost-motion connection 44<a>, 44<b> with a lever 43 on the spindle of a butterfly valve on the steam inlet pipe. This valve may also be actuated by means of a handle 42.
Patent GB-1248888-A (GB)
Title: Compressor regulation in refrigerating plants
IPC: F25B5/02
Filed: 1970-03-20
Abstract: 1,248,888. Refrigeration. STAL REFRIGERATION A.B. 20 March, 1970 [3 April 1969], No. 13596/70. Heading F4H. [Also in Division G3] In apparatus for refrigerating spaces or objects 2 ... 4, the supply of refrigerant or heat transfer medium to an air cooler 8 in each space is regulated via a temperature sensing transducer 6, temperature regulator 5 and valve 9 in the feed line to each space which commences the refrigeration of each space so that the refrigeration period for each space is proportional to the difference between the actual and desired temperatures of the spaces and the capacity of a compressor 1 forming part of the refrigeration system is changed to a level proportional to this mean value. In operation, the refrigeration periods are started sequentially after each other and the duration of each period is controlled by electronic control means 7 which sequentially sense the temperatures of all spaces via the transducers 6 and control the valves 9 via the regulators 5 so that the duration is proportional to the difference between actual and desired temperatures although the duration has a predetermined maximum. The capacity of the compressor 1 is adjusted by the control means 7 in accordance with the mean value of the refrigerating periods as computed by the control means 7 when the refrigeration of all the spaces has started.