baber/WOPTO huggingface dataset:
Patent GB-1489273-A (GB)
Title: Collapsible tables having wheel assemblies
IPC: A47B25/00
Filed: 1975-01-23
Abstract: 1489273 Folding tables; castors S G HJELMQUIST 23 Jan 1975 [5 Feb 1974] 3063/75 Headings A4H and A4U A collapsible table has two tops 1 hinged together at 2 and a wheel assembly for moving the table when collapsed, said assembly comprising at least one rigid bracket member 3 disposed on each top close to the hinge, and respective wheels 2a mounted on said bracket members, said bracket members and wheels being mutually offset in the direction of the hinge axis, the bracket members of the respective tops protruding in opposite directions from the parallel table tops when the table is collapsed. The wheels are castor wheels. Each bracket member 3 has a headed projection 9 engaged in a T-shaped aperture 7 in a fastening 4 secured to hinge 2 and a lug 10 inserted through an opening 18 in a U-shaped pressure distributing plate 15 fixed to top 1 and screwed to the top 1 at 19. An abutment 11 on top 1 engages in a recess 12 in the bracket member 3.
Patent GB-633235-A (GB)
Title: Improvements in or relating to emergency release gear for locked parts of aircraft
IPC: B64C25/30
Filed: 1948-02-03
Abstract: 633,235. Emergency release gear. BLACKBURN & GENERAL AIRCRAFT, Ltd., (formerly BLACKBURN AIRCRAFT Ltd.), WOODWARD, S. C., and JACKSON, J. C. Feb. 3, 1948, No. 3142. [Class 4] An emergency release gear for locked poweroperated parts of aircraft comprises an operating member which rotates a plurality of cams each operative on a lever connected to one of the locks, the cams being so positioned that the levers are operated in turn and after operation ride on idle portions of the cams, the movement of each lever effecting disengagement of the lock to which it is connected. The invention is shown applied to a release gear for the undercarriage and arrester gear locks of a ship-borne aircraft, and comprises a rotary member 1 carrying a series of six cams 4, 5 ... 9, which respectively engage release levers 14, 15 .... 19. The arrangement is such that on rotation of the member 1 by a control lever 20 moving in the portion 21 of a gate in a housing 22, the lever 14 is first operated to release the nose or tail wheel lock, the next two levers 15, 16 then release the selector valves for the nose or tail, and the main undercarriages respectively, and the levers 17, 18 next release the main undercarriage locks. Finally, the arrester gear lock is released by the movement of the lever 20 in a separate, laterally-disposed gate portion 21<SP>1</SP>.
Patent GB-524417-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J43/02
Filed: 1939-01-30
Abstract: 524,417. Electron multipliers. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Jan. 30, 1939. No. 3156. Convention date, Jan. 28, 1938. [Class 39 (i)] An electron beam from a cathode K, Fig. 1, is focussed by intermediate annular electrodes A, A<SP>1</SP> on to an impact electrode P part only of which is a good secondary electron emitter, and a varying control potential is applied to one or more of the electrodes A, A<SP>1</SP>, P to vary the focussing of the beam and so the proportions of the beam falling on the emissive and non- emissive parts of the electrode P. The secondary emission from the electrode P is thus controlled and the output may be taken from resistances Wa, Wp in either or both of the circuits to the electrodes A, P. Push-pull control voltages may be supplied to the electrodes A, A<SP>1</SP>. A strip or flat beam may be used with suitably shaped secondary emission surface on the impact electrode. The emissive part 2 of the electrode P may be a central circular area or an outer annular area and may be insulated from the non-emissive part ; dynatron action may be obtained. In a modification, Fig. 7, the cathode K is replaced by a second target electrode p<SP>1</SP> Z<SP>1</SP> to form a to-and-fro electron multiplier and the intermediate electrodes A, A<SP>1</SP> may be annular plates as shown, or rings. Oscillatory potentials are applied to the electrodes P, P<SP>1</SP> or to'the electrodes A, A<SP>1</SP> so that only properly phased electrons are focussed on to the central emissive parts Z, Z<SP>1</SP> of the electrodes P, P', these arrangements providing an oscillation generator or amplifier. A magnetic field may be applied to the tube for electron control. Specification 496,705, is referred to.
Patent GB-959593-A (GB)
Title: Oxidation of powdered iron alloys
IPC: C22B34/32
Filed: 1961-01-27
Abstract: Powdered iron alloys containing chromium, manganese, nickel, cobalt, silicon, titanium, vanadium or tungsten, are oxidized by suspending in an oxygen containing gas and passing, at a velocity sufficient to avoid fusion, through an oxidizing oxygen fuel gas flame at a temperature above the fusion temperature of the metal but below that of the oxidized particles, and cooling the oxidized powder to avoid fusion. Excess oxygen is preferably employed and the alloy powder is advantageously fed coaxially through the centre of the burner; the oxidized powder is collected in a cyclone. Various other mechanical arrangements are described with reference to diagrams (not shown) and examples give analyses of the treated powders.  Specifications 769,269 and 800,205 are referred to.ALSO:Powdered iron alloys containing chromium, manganese, nickel, cobalt, silicon, titanium, vanadium, or tungsten are oxidized by suspending in an oxygen-containing gas and passing at a velocity sufficient to avoid fusion, through an oxidizing oxygen/fuel gas flame at a temperature above the fusion point of the metal and below that of the oxidized particles, and cooling the oxidized powder to avoid fusion.  Excess oxygen is preferably used and the alloy powder is advantageously fed coaxially through the centre of the burner.  The product is collected in a cyclone.  Various other mechanical arrangements of the burners and plant are described with reference to diagrams (not shown). Specifications 769,269 and 800,205 are referred to.
Patent GB-1143312-A (GB)
Title: Improvements in or relating to electron beam magnetic focussing systems
IPC: H01J23/087
Filed: 1966-01-25
Abstract: 1,143,312. Electron beam focusing apparatus. SIEMENS A.G. 25 Jan., 1966 [26 Jan., 1965], No.3226/66. Heading H1D A magnetic system for focusing an electron beam along an axis includes a plurality of permanent magnets arranged along and symmetrically about the axis, the magnets being magnetized in a direction perpendicular to the axis with similar poles adjacent the axis, their length perpendicular to the axis decreasing from one end of the system to the other such that their distance from the axis exhibits an associated increase, and a magnetically soft bridging member linking the poles remote from the axis, and extending axially beyond the shortest magnet to a magnetically soft iris disposed perpendicular to the axis. A travelling wave tube 4 is mounted in a focusing system formed by a pair of opposed sets of hard ferrite magnets 1, which provide a uniform axial field along the tube, with its gun-end projecting through the aperture of iris 3, and its collector 5-having an internal magnetic screen 10 and a cooling surface 6-disposed between the pair of longest magnets. The member 6 is supported from the bridging member 2 by non-metallic stays 11, and the tube input and output waveguides 12 and 13 project sideways between the two sets of magnets. In an alternative arrangement (Fig. 1, not shown), the position of the travelling wave tube with respect of the focusing system is reversed, the collector projecting beyond, and being shielded by, the iris 3. For the system of Fig. 4, in which the magnets are of rectangular bar shape, the ratio of the spacing between the two longest magnets to their width transverse to the axis is preferably less than or equal to 4. Reference is made to alternative arrangements in which four sets of magnets are symmetrically disposed about the axis, and to the use of a single set of annular disc magnets.
Patent GB-627626-A (GB)
Title: Improvements in or relating to methods of knitting
IPC: D04B1/10
Filed: 1947-02-04
Abstract: 627,626. Knitting. HEMPHILL CO. Feb. 4, 1947, No. 3306. Convention date, Feb. 13, 1946. [Class 74 (ii)] To form a diagonal wrap pattern on a circular independent needle machine by periodically retarding a wrap spindle, which rotates in the same direction as the needle cylinder and which feeds the wrap yarn, the wrap yarn is fed to two adjacent needles and then cast off from the leading needle so that the wrap yarn is knitted with a body yarn on the other needle. In a multi-needle wrap pattern the wrap yarn is fed to the selected needles for that course and a needle or needles immediately preceding the selected needles. The needle or needles immediately preceding the selected needles then cast off the wrap yarn and it is knitted with the body yarn on the selected needles only.
Patent GB-947838-A (GB)
Title: Apparatus for row crop cultivation
Inventor: CHAMBERS JOHN MALET
IPC: A01B39/06
Filed: 1962-01-29
Abstract: 947,838. Agricultural implements. STANDARD MOTOR CO. Ltd. Dec. 10, 1962 [Jan. 29, 1962], No. 3320/62. Heading A1B. A tow crop cultivator is supported at the front of a vehicle by a pair of links which are arranged side by side and converge to a focus point 11, the cultivator being provided with a ground engaging fin 17a which opposes its movement bodily in a lateral direction but will act in the manner of a pivot for enabling it to be turned by an orientation of the links due to the vehicle course being changed by a steering error. As shown a tractor lift linkage 5, 6 is utilized and the tractor is driven rearwardly. A pointer 21 is provided to enable the tractor driver to observe more sensitively a steering error.
Patent GB-546356-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L19/065
Filed: 1941-03-12
Abstract: 546,356. Pipe joints. SHANKS & CO., Ltd., and SHANKS, G. M. March 12, 1941, No. 3366. [Class 99 (i)] A coupling for metallic pipes for example of copper or non-ferrous alloys comprise a tubular member 1 providing a socket 2 to receive the end of the pipe 3 and a coupling- member 4 having a conical shoulder 5 adapted to bear on the peripheral edge 7 of a conical joint element 6 of softer metal than the pipe, the narrow end of the element 6 entering the bore 2a of the socket 2. The element 6 is preferably undercut at 9 and the mouth of the socket rounded off at 8.
Patent GB-372351-A (GB)
Title: Manufacture of cellulose xanthates
IPC: D01F2/08
Filed: 1931-02-03
Abstract: In the manufacture of viscose, carbon bisulphide is used in the stoichiometric proportion corresponding with the formation of a mono- or dicellulose xanthate, and the sulphiding is begun at a temperature not above 16 DEG  C. and terminated at a temperature not lower than 22 DEG  C.  The viscose obtained is homogeneous and uniform and can be used for making artificial silk of either coarse or fine titre with the same spinning orifices, say of 0.1 mm. diameter the silk has uniform dyeing properties.  The mono-cellulose xanthate, dissolved to the amount of 8 per cent in 7 per cent caustic soda solution, gives a solution of no measurable immediate ripeness, while the dicellulose xanthate under similar conditions has an immediate ripeness of 15 DEG Hottenroth, and can either be used forthwith or stored for some time; if the solution is to be spun immediately, weaker caustic alkali, say 6-7 per cent, may be used for dissolution.  In an example, dicellulose xanthate is made by treating ripened alkali cellulose with carbon bisulphide first at 14 DEG  C. and finally at 25 DEG  C. Specifications 183,882, 193,926, 212,865, and 216,828, [all in Class 2 (ii), Cellulose &c.], are referred to.  According to the Specification as open to inspection under Sect. 91 (3) (a) tri- or tetracellulose xanthates may be made by employing corresponding amounts of carbon bisulphide; viscose made from lower xanthates can be transformed into higher xanthates by adding carbon bisulphide; and in an example of the manufacture of tricellulose xanthate the temperature rises from 5-15 DEG  C.  This subject-matter does not appear in the Specification as accepted.
Patent GB-251369-A (GB)
Title: Improvements relating to colophony, resins, oleo-resins, balsams and the like applicable to bows for stringed musical instruments
IPC: C08K3/00
Filed: 1925-02-07
Abstract: 251,369. Cadett, J. W. T., and Cadett, E. V. Feb. 7, 1925. Resin substitutes.-A composition for application to bows for musical instruments consists of a powdered abrasive such as amber, glass, pumice, carborundum, corundum, ruby, sapphire, or diamond dust, mixed with colophony, resins, oleo-resins, balsams, or like carriers. In an example, rosin is melted, one fourth of its weight of powdered silica is stirred in, and the mixture is cast in blocks.
Patent GB-255347-A (GB)
Title: Improved spiral separator, or the like
IPC: B07B13/11
Filed: 1926-02-08
Abstract: 255,347. Ellis, G. B., (Anthracite Separator Co.). Feb. 8, 1926. Density separators. - A coal separator has a spiral runway 14 built up of overlapping sections 20 some of which have an outer portion cut away on a line 28 at an acute angle with a radial line through the axis of the runway. Friction plates 32 are arranged to move over the gaps thus formed. The plates are secured to a spiral movable bar 36 guided in brackets 38. This arrangement enables simultaneous variation of the frictional area of the runway, and of the distance from the axis of the point at which coal is discharged into the coal conveyer thread 18.
Patent GB-771446-A (GB)
Title: Improvements in alloy steels
Inventor: GEMMILL MATTHEW GEORGE
IPC: G06K21/02
Filed: 1954-02-08
Abstract: Bolts for use at high temperature are formed of an alloy steel having a composition within the following range. .Cr.0.5-2.0.per cent .Mo.0.65-1.25.per cent .C.0.15-0.3.per cent .V.0.4-1.15.per cent .Mu.up to 2.0.per cent .Si.up to 2.0.per cent .Fe and impurities the remainder... The bolts may be solution treated at 1050 DEG C., oil-quenched and tempered at 700 DEG C. e.g. for 9 hours.  The Provisional Specification describes also an alloy of the above composition except that the Mo range is 0.5-2 per cent, the C range is up to 0.3 per cent and the proportion of V is 3 to 5 times the C content.
Patent GB-717574-A (GB)
Title: Improvements in or relating to socks and stockings
Inventor: HURTLEY FRED
IPC: A41B11/08
Filed: 1951-08-15
Abstract: 717,574. Socks. HURTLEY, Ltd., F. Nov. 12, 1952 [Aug. 15, 1951], No. 3667/51. Class 141 Leg wear, adapted to be worn with an ordinary sock. comprises the leg portion 1 of a football or like stocking extending upwardly from the ankle and having a stirrup-like lower extension 3 which fits under the foot. The extension 3 may be formed integrally with the leg portion or may be formed separately and may include elastic threads.
Patent GB-896577-A (GB)
Title: Improvements relating to semi-conductors and to voltage regulating systems employingsame
IPC: H02J7/24
Filed: 1960-02-03
Abstract: 896,577. Automatic voltage control systems; automatic regulation. BOSCH G.m.b.H., ROBERT. Feb. 3, 1960 [Feb. 3, 1959], No. 3792/60. Addition to 863,052. Class 38 (4). In a voltage regulating system a constant voltage is developed by employing a semiconductor, comprising a disc of germanium to one side of which is soldered a lug by an alloy of copper, indium and incidental impurities, having a copper content of 1/ 100 th to 5/ 6 th. The voltage-current characteristic of the semi-conductor contains a sharp bend and a forward current through the semi-conductor has a value such as to operate the semi-conductor in the steep part of its characteristic and maintain the temperature of the semi-conductor sufficiently high as to increase the steepness of the characteristic. As shown, a field winding F of a generator G supplying a battery 50 through a reverse current rectifier is energized from lines 42, 44 in series with the emitter-collector path of a transistor 40 and a semi-conductor 30 of the kind described. A control transistor 41 is responsive to the difference between the voltage at a tapping of a resistive potential divider 48, 49 and the constant voltage across a semi-conductor 31 of the kind described. The control transistor 41 renders the transistor 40 non-conductive when the voltage of lines 42, 44 is above a pre-determined value. The consequent reduction of the field current lowers the generated voltage below the value at which transistors 40, 41 are rendered conductive. The transistors cycle between these two conditions so as to tend to maintain the generated voltage constant. Specification 892,725 also is referred to.
Patent GB-607511-A (GB)
Title: Improvements in machines for spreading artificial fertilisers and the like
IPC: A01C15/00
Filed: 1946-02-06
Abstract: 607,511. Manure distributers. MASSEYHARRIS, Ltd., RESEARCH ENGINEERS, Ltd., and DAIN, G. R. Feb. 6, 1946. No. 3793. [Class 6(i)] In a machine for distributing artificial fertilizer and the like, comprising a troughlike hopper 1 containing material which is delivered through openings to a series of dish-like discharge pans 2 rotatably mounted about vertical axes, the material being spread by a series of spreaders or flickers which dip into the discharge pans, the flow of material from the hopper is controlled by a series of shutters 4, lying vertically in the pans and mounted on fixed axes 5, the shutters dipping into the discharge pans to a greater or less extent when adjusted, to vary the amount of material discharged. The shutters 4 are pivoted to a link 7 which is connected to a handlever 11 for varying the shutter positions, the link 7 being locked in the desired position by means of a wing nut 15.
Patent GB-470080-A (GB)
Title: A vehicle in which means are provided for varying the tread surface of the pneumatic tyres and for varying the force of adhesion of the wheels
IPC: B60B15/26
Filed: 1936-02-07
Abstract: 470,080. Vehicle wheels. MICHAEL, P. Feb. 7, 1936, No. 3815. [Class 144 (ii)] A device for adjusting tyre pressures according to road conditions comprises means which in one position connect the tyres to a pressure supply, said means being movable to another position for connecting the tyres to atmosphere to lower the inflation-pressure to a predetermined minimum. Auxiliary road-gripping devices may be fitted at one or both sides of the wheels to operate when the tyres are running under low-pressure. The apparatus shown comprises a manually-operated cock 1 by which the pressure-device pipe 2 may be placed in communication with a pipe 5, directly through a branch 3 or through a reducing-valve 8 in the branch 4, the pipe 5 leading to a chamber 57 in the axle-casing. Pressure-controlled means are provided for connecting the chamber 57 with the tyres through an axle-bore 6 and conduits 37, 47, the effective tyre-pressure being controlled by the position of the cock 1. For reducing the tyre-pressure, the cock is turned to the position shown in Fig. 2 whereby air at the desired reduced pressure is fed through the core 6 and ports 14, 16, 19 to a space 22 which is normally closed at its axially-outer end by a spring-loaded valve 24 and, at its inner end, is fitted with a piston 26 carried by a valve 28. The load on the valve 24 is adjusted to prevent the valve being unseated by the low-pressure in the space 22. This pressure, however, is sufficient to lift the valve 28 against the pressure of a spring 40 fitted between the valve 28 and a valve 38. Displacement of the valve 28 opens the chamber 84 to atmosphere through ports 29, 30, space 20, and ports 31 ... 35. The high-pressure existing in the tyre then operates, through conduit 37 and space 83, to unseat the valve 38 thereby opening the tyre to atmosphere through the chamber 84. After a predetermined fall of pressure in the tyre determined by the adjustable spring-load on the valve 38, the latter is returned to its seat to shut off the tyre from the chamber 84. The cock 1 is then turned to vent the space 22 and its. communications through the passage 8, the valve 28 being reseated by the spring 40. To reinstate high-pressure in the tyre, the cock 1 is moved to place the space 22 in direct communication with the high-pressure supply. The valve 28 becomes unseated and the valve 24 moved to close the atmosphere-vent 35, the tyre being further inflated through the conduit 47 and, after unseating of the valve 38, through the conduit 37. When the desired pressure is obtained in the tyre, the cock 1 is moved to vent the space 22. As shown in Fig. 5a, a rim 65 having ground-engaging strokes 61 is fitted at the side of the wheel to function when the tyre is operating at low pressures. A rubber cushion 64 is vulcanized to the rim 65 and an inner rim 66 which is detachably secured to a carrier ring 63 on the wheel.
Patent GB-1122283-A (GB)
Title: Improvements in or relating to means for lowering reels
IPC: B65G37/00
Filed: 1965-01-28
Abstract: 1,122,283. Endless conveyers. J. H. W. SMITH and D. T. R. BALDWIN. 10 Jan., 1966 [28 Jan., 1965], No. 3841/65. Heading B8A. Newsprint reels 10 are controlled by two successive pairs of stops 36, and stops 33 on endless chains 31, as they pass to load carrying members 29 on four pairs of endless chains 16. The stops 36 are controlled by a cam 43 on a drive shaft of the chains 16. The chains 31 are also linked to the drive of the chains 16. The reels 10 are released on to a sloping platform 30, from which they roll under control of stops 47 carried by four side-by-side endless chains 48. In a modification (Fig. 6 not shown), the stops 47 have a purely rotary motion. The platform 30 may be made to incline to either side of the device.
Patent GB-621242-A (GB)
Title: Improvements in or relating to the drilling or sowing of seeds and the like
IPC: A01C7/04
Filed: 1947-02-10
Abstract: 621,242. Sowing seeds; treating seeds. PARISH, W. R. Feb. 10, 1947, No. 3859. [Classes 6(i) and 58] A method of sowing seeds comprises coating the seeds with a magnetic powder, such as magnetic iron oxide, picking up the seeds magnetically and subsequently releasing them at predetermined intervals to be deposited in the ground. The seeds are coated with gum acacia, and then agitated with magnetic powder, and finally allowed to dry. The sowing device comprises a drum E within which are mounted solenoids A, B arranged radially and energised through contacts on the axle F. The end of each solenoid is flush with the drum and is of such a size as to pick up a single seed from the outlet of a hopper (not shown). The seeds are carried round by the drum and are released as each solenoid reaches the bottom dead-centre position, the electrical connections being automatically interrupted at this point. The seeds then fall into a sowing shoot.
Patent GB-839206-A (GB)
Title: Improvements in or relating to the automatic advancement of film-strips
Inventor: KEIR ROBERT ALEXANDER
IPC: G03B21/50
Filed: 1957-02-05
Abstract: 839,206. Sound and picture apparatus. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Jan. 14, 1958 [Feb. 5, 1957], No. 3861/57. Class 40 (2). Apparatus for advancing a film strip FS in a projector PR in accordance with commentary on a magnetic record tape having a second track containing control signals which are picked up by a head FCRH to operate a relay R to energize an electric motor M having associated therewith a notched cam assembly CA whereby the motor remains energized after the release of the relay until the motor has advanced the film strip by one frame. The cam assembly is provided with means for presenting double the number of notches to the follower according to whether it is desired to move the film an amount corresponding to a picture comprising one frame or two frames on standard 35 mm. film.