baber/WOPTO huggingface dataset:
Patent GB-326375-A (GB)
Title: Modulated carrier wave transmission systems
IPC: H03C1/52
Filed: 1929-04-08
Abstract: 326,375. Kirke, H. L. April 8, 1929. Thermionic modulating systems. - To secure high efficiency in transmission, a pure carrier-wave is passed through one set of amplifiers whilst independently derived side-band components are amplified separately. The carrier and side bands may be combined before radiation, or they may be radiated from different aerials as shown in the figure, the carrier frequency generated by a valve oscillator V1 is fed in parallel to two valves V2, V3. From the valve V3 the pure carrier is passed through phase-adjusting circuits to an amplifier V7, the output of which is applied across one diagonal of a wheatstone bride B. The output from valve V2 is applied together with low-frequency current from a. microphone M, to a balanced modulator arrangement V4, V5. The side-band components, from which the carrier frequency has been eliminated, are then passed through an amplifier V6 and applied to the opposite diagonal of the bridge B. The carrier and side bands are combined in the bridge, without interaction, and are fed from the terminals 1, 2 to one or more aerials, or to feeder wires, forming the fourth arm of the bridge.
Patent GB-1021341-A (GB)
Title: Improvements in or relating to spindle drives for textile spinning, twisting, doubling and like machines
Inventor: FOSTER JOHN RAYMOND
IPC: D01H1/241
Filed: 1961-03-24
Abstract: In a spinning &c. frame where a single tape drives more than one spindle, so that the frame can be kept as narrow as possible by using driving-members of small diameter while ensuring sufficient contact between each tape and its driving-member so that when one spindle is braked the drive to the associated spindles is unaffected, each tape is arranged to form at least two loops each of which engages the member and the tensioning-pulley.  The axis of the tension-pulley is inclined relatively to that of the member to separate the loops, and so that the drive can be reversed, the pulley is adjustably mounted or an idler pulley may be provided.  A guard encloses the driving-members and tensioning pulleys.  This is in sections: a front part 25, Fig. 2, not shown, with a lip 28 turned under the spindle rail, an L-shaped part 27 and a top cover 26 laid on strips, the latter and the part 27 being hinged to a rail 29 while the parts 25, 27 are releasably connected at 34.  A pad 37 protects the part 27 should the pulley fall.
Patent GB-888399-A (GB)
Title: Arrangement for locking a sewing needle on the needle bar of a sewing machine
IPC: D05B55/02
Filed: 1959-04-01
Abstract: 888,399. Sewing machines. NECCHI S.p.A. April 1, 1959 [April 11, 1958], No. 11028/59. Class 112 [Also in Group XXV] Means for locking a sewing machine needle within a groove in the needle bar comprise a member displaceable transversely of the groove and formed with a sloping surface adjacent thereto, and spring means adapted to urge the member in a direction such that the sloping surface presses the needle against a wall of the groove with wedge action. A support member 5, encircling the needle bar 1, is fixed thereto by a screw 4<SP>1</SP>. A cylindrical pin 12, slidable in aligned transverse recesses provided in the support member and needle bar, is formed with a frusto-conical surface 13. A spring 14 biases pin 12 axially to engage the thicker end of surface 13 with the needle 7 for urging a flat surface on the latter against a corresponding surface in a needle-receiving groove 6 formed in the needle bar. A knob 15 on pin 12 may be pressed inwardly to release the needle, when return movement of the pin is limited by the engagement of a washer 17 on the latter with the member 5.
Patent GB-671674-A (GB)
Title: Improvements in mountings for aerial survey cameras
IPC: G03B15/00
Filed: 1949-04-26
Abstract: 671,674. Camera mountings. WILLIAMSON, S. May 11, 1950 [April 26, 1949], No. 11047/49. Class 97 (i). In a mounting for an aerial survey camera which has a base adapted to be secured to the floor of an aircraft and camera holding means attached to the base and providing a transverse axis on which the camera may be pivoted, the transverse axis is spaced below the base so that when the mounting is in place in an aircraft the axis lies as nearly as may be convenient to the skin of the aircraft, the camera itself being held with its nose on or near this axis. In the form shown, the mounting comprises a base-plate 1, which is apertured at 2, secured to the floor 3 of an aircraft and supported by shock absorbers 4 a frame 6 which has an opening 7 in register with the base plate opening. The level of frame 6 is adjustable by screws 5. Resting on frame 6 and rotatable by means of a pinion meshing with a toothed edge 9 to correct for drift is another frame 8; this frame is supported on frame 6 by clips 22 which are detachably mounted on frame 6 and engage grooves 23 on the longer sides of frame 8. These clips, together with curved projections 16, 17 on frame 6 guide frame 8 in its rotary movement about the vertical axis. Depending from frame 8 are check plates 18 which terminate in a ring 19 on which the camera 20 is pivoted by trunnions 21. Rotation of the camera about the trunnion axis is effected by links 24, one end of each of which is hooked over a pin 25 on the camera and the other end passes through a housing 27 on the frame 8 and is formed with teeth 26 for engagement with pinions on a shaft, which can be rotated manually or by a remote control electric motor 31.
Patent GB-1108791-A (GB)
Title: Electrophotographic developer mixes
IPC: G03G9/10
Filed: 1965-03-16
Abstract: 1,108,791. Electro-photographic developer. ADDRESSOGRAPH-MULTIGRAPH CORPORATION. March 16, 1965 [April 6, 1964], No. 11074/65. Heading G2H. Electro-photographic developer powder comprises a magnetic carrier and a coloured toner comprising a blend of a tough infrangible resin and a frangible resin. Polyamides are suitable infrangible resins. Suitable frangible resins are phenolic resins (e. g. diphenolic or phenol/formaldehyde resins, which may be modified with a fatty acid) and the reaction product of maleic anhydride, rosin and a polyhydric alcohol. The toner may also comprise a fluxing agent, e. g. a polyhydric, alcohol, wood rosin, a toluenesulphonamide or butylated hydroxytoluene. In the Examples, carbon black and nigrosine are used as colouring agents.
Patent GB-402089-A (GB)
Title: Improvements in and relating to translating circuits
IPC: H02M7/15
Filed: 1932-04-18
Abstract: 402,089. Rectifying alternating current. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Fitzgerald, A. S. ; Warwick Road, Wynnewood, Pennsylvania, U.S.A.) April 18, 1932, No. 11078. Convention date, April 17, 1931. [Class 38 (ii).] Relates to a voltage-regulation arrangement for a grid controlled valve rectifier 13, 14 in which means are provided for effecting a predetermined time delay between variations of the current transmitted and the adjustment of the grid control. The grids of the valves 13, 14 are fed from a phase shifting circuit comprising a resistance 18 in series with a saturable reactor 19 the impedance of which is varied in dependence on load by means of saturating windings 20, 21 supplied from a full wave valve rectifier 22, 23. The valves 22, 23 are controlled by the variations of potential across a condenser 28 supplied from a current transformer 25 through a rectifier 26, 27. To modify the response of the arrangement to overload or short circuit conditions a resistance 30 is connected in parallel with the condenser 280, a resistance 29 in the supply lead and a condenser 31 in parallel with the rectifier 26, 27. If the resistance 29 is large, on the occurrence of short circuit the condenser will charge slowly and delay the application of the control potential. This gives an opportunity for the short circuit to burn itself clear. If the resistance 29 is small and the resistance 30 is large, on the occurrence of short circuit the condenser 28 will charge rapidly and interrupt the flow of current in valves 13, 14 but since the charge will only leak away slowly through the resistance 30, the removal of this control is delayed. Specification 399,236 is referred to.
Patent GB-993056-A (GB)
Title: Improvements in or relating to arresting means for use in aircraft arresting apparatus
Inventor: BYRNE JOHN JAMES
IPC: B64F1/02
Filed: 1961-03-27
Abstract: 993,056. Dashpots; disc brakes. E. W. BLISS CO. March 27, 1961, No. 11147/61. Headings F2E and F2S. [Also in Division B7] A dashpot, Fig. 5, comprises a water-filled cone 30 containing a piston 32 connected to a cable 10 of an aircraft arrester mechanism (see Division B7) to act as an energy absorber. The cable may alternatively be attached to tapes which are wound on to a reel 24, Fig. 4, and paying out of the tapes is retarded by piston means 35 being moved to frictionally engage the sides of reel 24. Specification 993,057 is referred to.
Patent GB-1489150-A (GB)
Title: Dyeing and printing of polyester and cellulose acetate
IPC: D06P1/44
Filed: 1976-03-19
Abstract: 1489150 Dyeing polyester and cellulose acetate materials HOECHST AG 19 March 1976 [21 March 1975] 11153/76 Heading D1B Textile materials consisting of or containing a polyester, cellulose tri-acetate or cellulose 2.5-acetate are pad-dyed or printed using a padding liquor or print paste containing a disperse dyestuff and an ester made from an unsaturated fatty acid having 11 to 21 carbon atoms and a condensation product of butane- 14-diol with 8 to 30 moles of ethylene oxide followed by fixation of the dyestuff. Preferably 5 to 50 gms of ester is present per litre of padding liquor or print paste, fixation may be by steam or hot air. The esters are easily washed out of the material after dyeing and do not therefore affect the light fastness of the dyes.
Patent GB-549233-A (GB)
Title: Improvements relating to the catalytic isomerization of hydrocarbons
IPC: C07C5/27
Filed: 1940-07-03
Abstract: 549,233. Catalytic isomerization of hydrocarbons. STANDARD OIL DEVELOPMENT CO. July 3, 1940, Nos. 11183 and 11184. Convention dates, Aug. 31, 1939, and Dec. 20, 1939. [Class 2 (iii)] Normal paraffin hydrocarbons are isomerized by a process which comprises subjecting the paraffin at a temperature of from 30‹-40‹F. to the action of a metal such as will with a halogen containing compound form a Friedel- Crafts type of catalyst, and a halogen containing compound capable of reacting with the metal and thus forming a Friedel crafts catalyst in situ. The preferred metal is aluminium, but zinc and iron may also be used. A catalyst such as mercury or a mercuric salt may also be added. Small amounts of promoters such as hydrogen halides, and lower alkyl halides are advantageously present. Starting materials mentioned include the normal paraffins butane pentane, hexane, heptane and higher homologues. The presence of hydrogen, either produced in situ or added, tends to reduce decomposition of the reactants. The reaction is preferably carried out in the liquid phase, superatmospheric pressure being employed when necessary for this purpose. In examples (1) Aluminium powder is added to normal pentane and to this is added amyl chloride containing HCl. The mixture is agitated for' 20 hours at 75‹C. Isopentane is produced. (2) As in example (1) except that mercuric chloride was also present as a catalyst. (3) Normal butane is treated in a closed reactor with an excess of powdered aluminium, HCl, and a small amount of mercury. Isobutane was formed. Specification 432,310 is referred to.
Patent GB-205538-A (GB)
Title: Improvements in, and relating to, fluid-pressure presses, particularly applicable for spreading metal blanks into any required shape
IPC: B21K1/28
Filed: 1922-04-21
Abstract: 205,538. Craven, J. M. F. April 21, 1922. Steam and other fluid pressure presses. - A steam &c. or a hydraulic press for forging blanks by a spreading operation comprises a number of nested cylinders and rams b - - f. An axially movable supply pipe k provides for varying the effective number of cylinders, and for causing either sequential or collective action. The rams may carry dies or may be themselves formed to act as dies as in the example shown for forging a wheel blank sequentially from the centre outwards.
Patent GB-574080-A (GB)
Title: Improvements in or relating to the jointing of flexible pipes
IPC: F16L37/14
Filed: 1944-06-13
Abstract: 574,080. Jointing flexible pipes. SAYERS, J. L. June 13, 1944, No. 11265. [Class 99 (i)] [Also in Group XXII] A coupling for connecting lead or similar pipes 1, 2 comprises a double-tapered split sleeve 9 located over the pipe ends and coacting with a pair of correspondingly-tapered sockets 8, 10 which are drawn together over the tapered ends of the sleeve and locked in position. The pipe ends are bored out to receive a ferrule 7 of the same internal diameter as the pipes, the boring being effected by a hand tool, Fig. 5, comprising a handle 3 with a shank 4 fitted with a locating pilot portion 5 and one or more cutters 6. The sockets have undercut shoulders 11, 12 and may be drawn together by means of a tool consisting of forked members 13, 14 provided with projections 18, engageable with diametrically-opposed points of the shoulders 11, 12. The initial spacing of the members 13, 14 is adjusted by chains 20 connected to a sliding member 23 which carries a spring pawl 24 coacting with a rack on the member 14. By applying pressure to the lower ends of members 13, 14 leverage is exerted to force the sockets into the position shown in Fig. 1 A wire or pin is then inserted tangentially into an extension of socket 11 and into a registering groove 25 thus locking the sockets together. In a modification flanges on the two sockets are locked together by an encircling ring of channel form. In another modification, Fig. 4, a pipe is joined to a brass or like T-piece 26, provided with an extension 33 forming the ferrule and the split sleeve 34 has a single taper coacting with a taper socket 35 which is forced against a flange 29 and locked to the flange extension 30.
Patent GB-117851-A (GB)
Title: Improvements in or applicable to Brake-cylinder Piston-rods.
IPC: B61H13/34
Filed: 1917-08-07
Abstract: 117,851. Vacuum Brake Co., and Mitchell, G. Aug. 7, 1917. Fluid-pressure.-The piston-rod c of a railway-brake cylinder is provided with a tubular end A secured by a nut c or by a split pin, and having an upward extension a and integral arms a<1> for engaging the brake lever B. The end A may be of malleable cast iron, or a steel casting or stamping, and is loosely fitted in order to permit it to adjust itself to the lever B, but is incapable of rotation. When applied to existing rods, the end is screwed on to the rod and secured by a cotter.
Patent GB-636449-A (GB)
Title: Improvements in or relating to peelheads
IPC: A21B3/00
Filed: 1948-04-27
Abstract: 636,449. Oven peel. CLARK, J. S., and CLARK, L. B., (trading as LITAPEELS). April 27, 1948, No. 11487. [Class 28(i)] The head of a baker's peel is flat on the back for inserting the dough lumps and is formed with at least a front edge ridge 7 and with side ridges 2 on the other side forming a recessed surface for withdrawal of the baked loaves. A lower central ridge 3 is also provided which merges into a fork 4 for receiving the end 5 of the handle. The head may be made of aluminium with slots 8 and openings 9 for lightness.
Patent GB-896239-A (GB)
Title: New cobalt-containing monoazo dyestuffs and their preparation
Inventor: DEHNERT JOHANNES
IPC: C09B45/20
Filed: 1960-04-01
Abstract: The invention comprises cobalt complexes of monoazo dyes of formula A-N=N-B, wherein A is the residue of 1-phenyl-4-amino-5-methyl-pyrazolone-(3) and B is the residue of an aromatic or heterocyclic hydroxy compound which couples in ortho-position to the hydroxy group or of an enol capable of coupling in the alpha-position to the enolic hydroxyl group.  They are prepared by treating monoazo dyes, obtained by reacting diazotised 1-phenyl-4-amino-5-methyl-pyrazolone-(3) with a suitable coupling component, with an agent supplying cobalt in aqueous solution or suspension or in an organic solvent at elevated temperature.  They give yellow and bordeaux shades on wool and also dye silk, leather, polyamides and polyurethanes. In an example the dye 1-phenyl-4-amino - 5 - methyl - pyrazolone - (3) --> 1 - phenyl - 3-methyl-5-pyrazolone is treated in aqueous ammonia with cobalt chloride.  Further coupling components specified are 1 - (21 - methyl - or 31-nitro- or 41-sulphamido-phenyl)-3-methyl-5-pyrazolone, acetoacetic acid-21-chlorophenylamide or -21-ethylhexylamide, 2 : 4-dihydroxyquinoline, 1 - methyl - 4 - hydroxy - quinoline - (2), 2 - hydroxy - 3 - naphthoic acid - (21 - hydroxyethyl) - amide, 2 - naphthol - 6 - sul - phonic acid - (31 - methoxypropyl) - amide, 6 - bromo - 2 - naphtho and 1 - naphthol - 2 - sulphonic acid methylamide.
Patent GB-115230-A (GB)
IPC: A01D46/10
Abstract: 115,230. Stukenborg, L. C. April 21, 1917, [Convention date]. Cotton, gathering. - A cotton-picking machine comprises a frame 10 mounted on travelling wheels 18 and a picker head 35 which is connected to the frame 10 by a flexible tube 36 and a flexible shaft 69. The frame 10 carries a cotton receptacle formed by wire netting stretched over bars 26 and a motor driving through belts a pump 37 and the flexible shaft 69. Handles 20 are provided for moving the frame along. The picker head, shown in Fig. 6, contains two interacting picking brushes 45 driven from the shaft 69 and mounted in an expanded casing 51. The cotton which is picked and combed by the brushes is stripped from them by pins 64 mounted on a freely rotatable sleeve 62 encircling a shaft 60 secured in the head. The pins are rotated and freed from the cotton by the rotation of a shell 65 provided with openings for the pins and which is mounted eccentrically to the shaft 60, thus causing the pins to be projected some distance beyond the shell at the side adjacent to the brushes but to be withdrawn within the shell as they move to the side facing the tube 36. The shell is driven through bevel-gear from the shaft 69. The freed cotton is carried by a current of air drawn by the pump 37 through openings 90 formed in the back portion of the picker head down the tube 36 until it reaches the pump whence it passes to the cotton receptacle. Any dirt which may be released during the combing action of the brushes 45 and the stripper pins 64 is carried along the tube 36 and shot through the meshes of the cotton receptacle. The front of the picker is provided with U-shaped wire guards 92, the forward leg of the U projecting through and being secured to the casing 51. In a modification, the cotton is stripped from the brushes by a toothed drum. Several picker heads may be connected to one central frame.
Patent GB-583195-A (GB)
Title: Improved chucking, rolling and the like mechanism
IPC: B21H3/06
Filed: 1944-06-16
Abstract: 583,195. Rolling annular bodies; screwing; chucks. BRASSERT & CO., Ltd., H. A., UDALL, W., and WEEKS, W. A. June 16, 1944, No. 11545. [Classes 83 (iii) and 83 (iv)] Relates to the rolling of annular bodies as described in Specification 583,187 and consists in means for opening and closing the segments of the outer roll without stopping rotation and for closing and opening the pass. The segments 2, Fig. 2, are located by dowels 5 in holders 4 in which they are secured by cotters 3. Shanks on the holders are guided in the legs of a spider 6 and carry rollers 10 engaging in cam slots 11 carried by a housing 12 secured to a sleeve journalled in a bearing 13, Fig. 3,.in a mounting 14 carried by a head 15 rocking in bearings 21 in the frame. The spider is secured to a sleeve 8 journalled in the housing sleeve and in a bearing 17 and carrying a brake drum 20. The housing sleeve is driven at 24 from a shaft 27 carrying a brake 29 and electromagnetic clutch 31. The segments are opened and closed by causing rotation between the sleeve 8 and housing 12 by manipulating the clutch 31 and brakes 29, 20. The ring blank to be rolled, mounted on the divided internal roll 1 as described in the prior Specification and held by the segments 2, is rolled out by-rocking the frame 15 by means of a driven cam 40. - Automatic controls for the clutch and the brake solenoids may be synchronized with the camshaft 41. In a modification, the parts 8, 12 have independent drive and brakes so that each part may be controlled independently of the other and the two may be looked in any desired relative angular positions.' Screwing die-heads; chucks.-The roll segment opening &c. mechanism is stated to be applicable to chucks, screwing-dies and holders for taps and dies.
Patent GB-961004-A (GB)
Title: A thermionic converter
IPC: H01J45/00
Filed: 1963-03-22
Abstract: 961,004. Thermionic generators. SIEMENSSCHUCKERTWERKE A.G. March 22, 1963 [March 22, 1962], No. 11549/63. Heading H1D. In a thermionic generator in which the electrodes 1, 2 define the vacuum space, an insulating seal is effected by a single copper packing ring 10 and a ceramic layer 9, e.g. Al 2 O 3 , sintered to at least one electrode. As shown, the electrode 1 is the cathode and is a disc 3 of Al 2 O 3  with a layer 4 of MoSi 2  and supports the active material 5 of LaB 6 . The anode 2 is of copper with a layer 7 of AgO. The ceramic layer 9 is several hundred microns thick, and screws, not shown, clamp the electrodes together. An alternative cathode is of tungsten with an external layer of MoSi 2  and an active layer again of LaB 6 . The vacuum is 10<SP>-6</SP> to 10<SP>-4</SP> mm. Hg. and contains a trace of caesium.
Patent GB-575434-A (GB)
Title: Improvements in or relating to draw-bar cradles for railway and like vehicles
IPC: B61G9/22
Filed: 1944-06-16
Abstract: 575,434. Draw-bar cradles. DERBYSHIRE CARRIAGE & WAGON CO., Ltd., and BUXTON, W. June 16, 1944, No. 11550. [Class 103 (v)] [Also in Group XXII] The ends 13 of two rectangular tie bars 12 connecting the end plates 10 of a draw bar cradle are chamfered or bevelled so that acute angled grooves are formed between the tie bars 12 and the edge faces of the end plate 10 to receive a welding fillet 14. This welding may be continued round the ends of the tie bars 12 to form a further fillet 15, while the end portions of the edge faces of the tie bars may be bevelled as shown at 16. The inner corners of the edge faces of the end plates 10 may also be bevelled to receive another fillet 17.
Patent GB-755273-A (GB)
Title: Improvements in resilient suspension devices
IPC: F16F1/40
Filed: 1954-04-21
Abstract: 755,273. Resilient mountings. LUXEMBOURGEOISE DE BREVETS ET DE PARTICIPATIONS. April 21, 1954 [April 25, 1953], No. 11578/54. Class 108 (3). A resilient mounting comprises an annular mass 8 of rubber bonded between opposed faces of parallel rigid first and second plates 6, 7, the inner outline of the rubber-metal interface at the first plate being outside the inner and outer outlines of the rubber-metal interface at the second face, the inner and outer side surfaces 21, 20 of the mass 8 being so shaped that any section of the inner or outer surfaces by a plane P<SP>2</SP> lies inside a section of the corresponding surface by a plane P<SP>1</SP> disposed between the plane P<SP>2</SP> and the first plate 6. As shown, the mountings are of circular cross-section, but they may be rectangular with rounded corners (Fig. 8, not shown). A stack of the mountings may be disposed in series (Fig. 7). Under load the surface 20 progressively engages the surface 1 of a machine base &c. while the surface 20a progressively engages the floor 4. The mounting thus has a steeply rising characteristic to normal loads but exhibits a constant low flexibility to transverse loads irrespective of the intensity of the normal load.