baber/WOPTO huggingface dataset:
Patent GB-569349-A (GB)
Title: Lead base alloy for bearings
IPC: C22C11/02
Filed: 1943-02-26
Abstract: 569,349. Alloys. FEUER, E. Feb. 26, 1943, No. 3215. [Class 82 (i)] Alloys for bearings have the following compositions, viz., tin 10.4-10.9 per cent, antimony 9.5-9.8 per cent, copper 1.6-1.9 per cent, arsenic 1.1-1.4 per cent, cadmium 1.6-1.8 per cent, sodium 0.01-0.005 per cent and the balance lead. In making the alloy, the sodium may be quickly stirred into a melt of the remaining constituents of the alloy ; or the sodium may be added in the form of a leadsodium alloy.
Patent GB-588638-A (GB)
Title: Coupling-stage for radio apparatus
IPC: H03H7/48
Filed: 1945-02-08
Abstract: 588,638. Valve circuits; aerial coupling arrangements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 8, 1945, No. 3249. Convention date, Feb. 9, 1944. [Class 40 (v)] In a high-frequency amplifier, the coupling coil 10, connecting a valve 2 to a load, is mounted by insulators 58 on a conducting panel 50, the end remote from the valve being coupled by a capacitor 14 to the panel, a resistor 52 maintaining the two plates of the capacitor at the same D.C. potential, while the panel 50 is coupled to earth by the R.F. byepass capacitors 68, designed to withstand the full voltage of the anode supply. The valves 2, 4 are preferably arranged in push-pull and feed over further coupling coils 60 and capacitors 18, 22, the capacitors 15 connected to the load, the H.T. supply being fed to the centre tap of inductor. Where the panel 50 and earthed plate are sufficiently close, the capacitor 68 may be omitted.
Patent GB-113825-A (GB)
Title: Improvements in the Manufacture of Red Azo Dyestuffs.
Filed: 1917-03-06
Abstract: 113,825. British Dyes, Ltd., Turner, J., and Dean, H. March 6, 1917. Monoazo dyes are obtained by coupling the diazo compound of 4 - chlor - 2 - aminoanisol with 1 : 4 -, 1: 5 -, or 2: 6 - naphthol sulphonic acids; the products dye wool red shades. Specification 4726/78 is referred to.
Patent GB-852431-A (GB)
Title: Polypropylene waxes and their preparation
IPC: C08F8/06
Filed: 1958-02-03
Abstract: Polypropylene waxes having molecular weights in the range 1000 to 8000 and densities of at least 0,90 are prepared by heating crystalline polypropylene of density at least 0,90 and an average molecular weight of at least 20,000 at 300 DEG C. to 450 DEG C. until the molecular weight is reduced to a value within the range 1,000 to 8,000.  The heating is preferably carried out in the absence of oxygen, e.g. in an inert atmosphere or in a solvent medium or under a vacuum.  Specification 852,432 is referred to.
Patent GB-759017-A (GB)
Title: Improvements in or relating to the production of metal tubing by extrusion
Inventor: HOOKER ERIC JOHN
IPC: B21C25/06
Filed: 1953-02-06
Abstract: 759,017. Extruding. SOUTHERN UNITED TELEPHONE CABLES, Ltd. Feb. 5, 1954 [Feb. 6, 1953], No. 3427/53. Class 83 (4). In the production of metal tubes 16 by the extrusion of metal through an annular extrusion orifice a<SP>1</SP>-b<SP>1</SP> formed between an inner die or mandrel 10 and an outer die 11, the latter has on the outlet side of the orifice an annular surface 13 adapted to exert a contracting action on the extruded tube so as to reduce its diameter beyond the natural contraction in diameter caused by the inward flow of the metal through the orifice. The die and mandrel may be adjusted axially relatively to each other for varying the size of the extrusion orifice. The invention is applicable to the extrusion of lead, aluminium or their alloys and in particular to the sheathing of cables with lead or lead alloy.
Patent GB-567967-A (GB)
Title: Mechanical modulator for radio beacons utilising two tones
IPC: G01S1/02
Filed: 1940-02-23
Abstract: 567,967. Converting electric currents ; frictional electric machines. STANDARD TELEPHONES & CABLES, Ltd., and EARP, C. W. Feb. 23, 1940, No. 3434. [Classes 35 and 38 (ii)] [Also in Group XL] In a beacon system for guiding aircraft using different radiations identified by different tones, mechanical or rotary modulators are used and are arranged to produce either a single sideband, or a double side-band with carrier suppressed. Double side-bands f, f2 are simultaneously produced by rotating a coil W<SP>2</SP> at a tone frequency f2 in an electromagnetic field created by coils F<SP>1</SP>, F<SP>2</SP> energized at a carrier frequency f<SP>1</SP> ; or by rotating collector platen at frequency f<SP>2</SP> in an electrostatic field of frequency f<SP>1</SP>. When pairs of coils F<SP>1</SP>, F<SP>2</SP> are used, energized in phase quadrature to produce a rotating field, Fig. 2a, or when a rotating electrostatic field is employed, Fig. 2b, the pick-up is of a single frequency f +, f2 or f -, f2 according to the direction of rotation of the pick-up element relatively to that of the field. For higher frequencies f1, the line L carrying the short-wave energy is bent into a loop P of length equal to one or more wave-lengths, and a single collector plate R, Fig. 3a, or a pair of collector plates R<SP>1</SP>, R<SP>2</SP>. Fig. 3b, pick up the side frequency f 1 + mf2, where m is the number of wave-lengths in the loop, and f2 the rotation frequency of the collector plates. To overcome the effect of the open end of the line L, dummy collector plates connected by a tuning-coil may be rotated a quarter-wave in advance of the collector plates R<SP>1</SP>, R<SP>2</SP>, so as to short-circuit the line at this point. The loop may be formed of a series of quarter-wave portions, Fig. 4, brought in to plates 1 ... 8 over which the collector plate R sweeps. In a further arrangement, two loops fed with quadrature phases are connected at half-wave intervals to plates which alternate with each other in their position round the ring swept by the collector plate, Fig. 5 (not shown),
Patent GB-589095-A (GB)
Title: Improvements in or relating to valve devices for fluid pressure supply systems
IPC: F15B1/027
Filed: 1945-02-12
Abstract: 589,095. Valves. AUTOMOTIVE PRODUCTS CO., Ltd., and SIMPSON, J. K. Feb. 12, 1945, Nos. 3486/45 and 418/46. [Class 135] A fluid regulating valve comprises broadly a casing having inlet and outlet ports and between them a spring-loaded valve plunger urged to the outlet opening position and subject on its opposite sides to the pressures at the ends of a restriction interposed in the flow path between the inlet and the outlet. In a hydraulic system including a reservoir 30, pump 31, main operated device 34, such as a servo-operated steering gear, and an accumulator 38 for operating other devices, the valve comprises a housing 10 having an inlet 18 and main and auxiliary outlets 23, 21 respectively communicating with housing grooves 22,20 the flow through which is controlled by a spring- loaded piston 13 having a bore 25 the pressure drop across which determines the position of the piston. On starting the pump, the pressure liquid flows through the bore and the groove 22 to the device 34 from which excess liquid returns to the pump inlet pipe 32. When the flow from the pump reaches a predetermined value, the piston is forced to the left and its end 24 restricts the flow through the groove 22. Continued movement to the left results in the opposite end 19 of the piston uncovering the groove 20 and permitting flow to the accumulator 38. After the accumulator has been fully charged, liquid passing the outlet 21 returns to the reservoir 30. Operation of the accumulator may increase the pressure to the right of the piston and, consequently, the flow through the bore 25. This results in the piston being moved further to the left and restricting the flow through the groove 22 so that the pressure to the left of the piston builds up until it counterbalances the pressure to the right and returns the piston to its original position. Interchangeable bushes having bores of different sizes may be inserted in the end of the piston. The valve may be incorporated in a system without an accumulator and in this case the. auxiliary outlet 21 is omitted.
Patent GB-194103-A (GB)
Title: Improvements in travelling lattices
IPC: D01G23/00
Filed: 1922-02-07
Abstract: 194,103. Hilton, J. P., and Nuttall, J. Feb. 7, 1922. Endless-belt conveyers with slat and lath carriers.-In travelling lattices, particularly those employed in cotton preparing machinery, the slats A are fixed to a length of canvas, leather, &c. B instead of to a continuous band and the first and last slats A<1>, A<2> carry metal plates having tubular projections c', c<2>, respectively, through which a pin D is passed to make the lattice endless. In order to permit the removal of one or more slats should stretching occur, and to strengthen the lattice, two slats adjacent each end slat are provided with similar couplings.
Patent GB-289575-A (GB)
Title: Improvements in vanes for rotary engines, pumps and the like
IPC: F01C21/08
Filed: 1927-02-08
Abstract: 289,575. Ralston, A. A., Beck, H. J., and Rimmer, C. Feb. 8, 1927. No Patent granted (Sealing fee not paid). Fixed-abutment type; packing vanes.-A vane for a rotary engine or the like comprises two blades A, B which slide on one or more guide rods 0 and which are pressed apart by springs E, F and by the pressure of the motive fluid which is admitted through the piston drum to a space between the inner ends. The blades are provided with spring-pressed packing bars on their faces and on their sides, those on the side, Fig. 3, sliding on a guide bar M. On the outer end of each blade are packing strips, Fig. 2, with an overlapping joint and with spring means for expanding them lengthwise.
Patent GB-1008546-A (GB)
Title: Means for agitating a foundry ladle or like metallurgical container
IPC: F27D27/00
Filed: 1963-01-28
Abstract: 1,008,546. Foundry ladles. DEMAG A.G. Jan. 28, 1963 [Jan. 27, 1962], No. 3522/63. Heading F4B. A support framework for a foundry ladle is provided with driving mechanism which moves the framework so that the longitudinal central axis of the latter generates the surface of an inverted cone. The ladle 1, Fig. 1, is mounted with its pivot bearing 2 in a carrier 3, at the bottom of which is provided a support shaft 4 which has a domed end 5 resting in a correspondingly shaped socket 6. A ring 7 fitted to the outer face of the carrier 3 rolls on a ring 8 which transmits horizontal forces through a frame 9 to the shop floor 10. A collar 13 is rotatably attached to the support shaft 4 and is made to describe a circular path by driving means, illustrated in Fig. 2, wherein three fixed cranks 11 drive the collar 13 by their crank rods 12 which are flexible to some extent. An alternative driving means, Fig. 3 (not shown) uses only one crank rod driven by a pair of cranks. In both driving arrangements, the cranks may be driven by a rigidly secured, geared, electric motor (not shown). In another embodiment, Fig. 4 (not shown) the ladle is supported on an upper ring of a carrier by the provision of claw lugs. The carrier is supported by two or more struts which are joined together at their lower ends to form a dome which rests in a socket, the bearing so formed being provided with a central, vertical hole. The upper end of a vertical shaft passing through this hole engages the carrier whilst the lower end is rotated by driving means housed in a chamber under the apparatus. Each end of the vertical shaft is provided with a Cardan joint, and the shaft may be constructed as a torsion bar.
Patent GB-151892-A (GB)
Title: Improvements in removable covers for books
IPC: B42D3/04
Filed: 1920-02-05
Abstract: 151,892. Middle, W. H. Feb. 5, 1920. Covers.-Removable covers for books are made with the two sides independent, each having riveted to it a plate with slots A, Fig. 4, and a plate hinged at D and carrying loops C. The book is bound in the usual way up to the stage of having the covers put on, but has the leather back applied and is provided with perforations G, Fig. 5, in the stiff card pieces F. The piece F is inserted between the plates fixed to the cover, and the hinged plate is closed down so that the loops pass through the perforations G and is secured by passing a metal pin through the loops C.
Patent GB-197379-A (GB)
Title: Improvements in and relating to spring means for applying and relieving pressure
IPC: F16D13/38
Filed: 1922-02-07
Abstract: 197,379. Mence, G. E., and Mence, H. A. Feb. 7, 1922. Clutches, friction.-In spring means for applying and relieving pressure on clutch surfaces and in other apparatus, the pressure of a number of springs, such as u, y, z, Fig. 7, is applied to a member s, which may be pressed against a clutch or other member (not shown) through parts t, w, x provided with projections. A separate controlling-member or the part t, which is shown secured to an operating-rod g, is moved downwards so as to relieve the member s from the pressure of the springs u, y, z in succession, release of the rod reversing the operation. The projections on the parts t, w, x may be turned outwardly, the outer part forming the operating- member. Fig. 6 shows a clutch in which a plate 19 on the driven shaft 21 is pressed against a driving-drum 17 by a series of plates 2, 3, 4 under the pressure of springs 5, 6, 7 respectively, the pressure being removed successively by a stepped slidable controlling-sleeve 22. The sleeve 22 may have a radial operating-flange only, the plates 3, 4 having stepped lugs as in Fig. 7.
Patent GB-857337-A (GB)
Title: Improvements in or relating to shelving arrangements
IPC: A47B47/02
Filed: 1957-02-01
Abstract: 857,337. Shelves. EBDON, D. L., and EBDON, L. A. Jan. 31, 1958 [Feb. 1, 1957], No. 3608/57. Class 52(1) Shelves 1 have flanged front and side edges the side edge flanges 3 being apertured to receive securing bolts &c. which pass through apertures in standards 7 of less width than the shelves. The rear edge of the shelf may also be flanged and apertured to receive a bolt securing it to a vertical rear flange on the standard. Label holders may be provided on the front flanges of the shelves and projecting feet 10 can be bolted to the standards.
Patent GB-239113-A (GB)
Title: Improvements in the manufacture of printer's ink
IPC: C09D11/02
Filed: 1925-02-09
Abstract: 239,113. Carpmael, W., (Chemische Fabrik auf Aktien vorm. E. Schering). Feb. 9, 1925. Ink.-Printing-ink which is easily removable from the paper is prepared by mixing a manganese printing-ink with a fat-soluble blue dye. Preferably, a dye, which is removable together with the manganese compound, by a sulphite or sulphurous acid, is used, suitable dyes being indophenol, indo-aniline, or indamine dyestuffs. In examples, stated proportions of pyrolusite, cumarone resin, anthracene oil, or mineral oil, and a fat-soluble blue dye are mixed together. For deeper colours, manganese pigment is impregnated with iron tannate, and stirred with a varnish in the usual way; a fat-soluble blue dye may also be added.
Patent GB-1381905-A (GB)
Title: Machine tool with automatic tool changing apparatus
IPC: B23Q3/155
Filed: 1972-01-26
Abstract: 1381905 Tool changers TOYODA KOKI KK 26 Jan 1972 3769/72 Heading B3B A machine tool comprises a bed 1, a column 2, a spindle head 7 movable along the column, and a spindle 9 in the head 7, the spindle having a coaxial bore and a driving projection 81 at one end thereof and drawing means 87, 92 for clamping a tool holder 10 in the spindle 9, there being provided power means M, 78 for rotating the spindle 9, a tool magazine 11, tool transfer means 16, 17 and the machine tool being characterized by a driving projection 48 on each of the tool holders 10, first control means for controlling a stopping range of the projection 81, second control means for operating the power means M, 78 to rotate the spindle at least one revolution while the tool holder for use in a succeeding operation is held by the tool transfer means in said bore of the spindle to ensure that the driving projections 48 and 81 circumferentially abut one another, and third control means for causing the drawing means 87, 92 to clamp the tool holder in the spindle after completion of the above mentioned rotation of the spindle. When the spindle stops after a machining operation micro-switches 95, 96 coact with different length dogs 93, 94 to register whether the spindle has stopped in a first or second stop range. Also when a tool holder is extracted from the magazine by an intermediate transfer arm 16 and is swung to an intermediate exchange position, an arcuate stop and a micro-switch indicate whether the driving projection 48 is in a dangerous range or a safe range. If it is indicated that the projections 48, 81 are in a range to axially interfere with each other, then the control means initiates rotation of the spindle at a slow speed to reposition the projection 81. Tool changers.-The magazine 11 has gripping fingers 39 for each tool and is mounted on ways 12 and moves vertically synchronously with the spindle head 7 by means of a chain 15. The intermediate transfer arm 16 is rotated and moved laterally by pressure fluid to place a tool at the intermediate position. A transfer device 17 comprises an arm having pressure-operated grippers at each end which can be controlled to loosen their grip, but not open, during a tool change. The device 17 is rotated 90, 180 and then 90 degrees by a rotary pressure cylinder, and is also moved laterally. Machine tool details.-The tool holders have tapered ends having a draw-bar extension 37 which is grasped by a ball locking part 82. Springs 92 act on draw-bar 87 to firmly lock the tool holder in the spindle. The draw-bar is released by a pressure fluid ram 85, 86. The machine tool bed 1 has ways 3 on which a saddle 4 slides. The saddle carries ways 5 on which a work-table 6 moves perpendicular to ways 3. The spindle head 7 moves on the column 2 by a feed screw device, and an hydraulic actuator 13 is connected to the spindle head by a chain 14 to ensure synchronous movement of the magazine and spindle head.
Patent GB-738186-A (GB)
Title: Apparatus for contacting gases or vapours with liquids
IPC: B01J19/30
Filed: 1953-02-11
Abstract: 738,186. Treating gases with liquids. SOC. LE CARBONE-LORRAINE, and HILLIARD, A. Jan. 21, 1954 [Feb. 11, 1953], No. 3812/53. 'Class 55 (2). Gases are treated with liquids in a tower formed by a number of horizontal passages defined by solid rigid permeable material connected with headers on opposite sides of the tower, one or more spaces extending from top to bottom; gas flows vertically transversely of the passages into which liquid from a header is introduced so that it must pass through some of the permeable material before reaching the gas. Hollow permeable elements, e.g. carbon or ceramic tubes of various cross -sections may be arranged in parallel layers with the tubes in each layer at right angles to those in adjacent layers. Valves in the headers may control the flow of liquid through the elements. The exit header valves may be closed, reacted liquid being withdrawn at the bottom of the tower. Or to dispose of heat of reaction, the valves may be opened to cause some liquid to escape through the headers. The elements may be in block form with horizontal or vertical passages or both. In this embodiment the horizontal passages connect with headers and the vertical passages of successive blocks are stoppered a short free space between the blocks increasing turbulence of the gas. Headers may be connected against non- apertured surfaces.
Patent GB-745040-A (GB)
Title: Apparatus for making tapered flexible tubing
Inventor: CARR ROBERT SIMMONDS
IPC: B21C37/12
Filed: 1954-02-09
Abstract: 745,040. Making tubes; coiling helically jointed tubes; seaming. AIRTRON, Inc. Feb. 9, 1954, No. 3818/54. Classes 83 (2) and 83 (4). Apparatus for making tapered, flat-sided flexible tubes includes a tapered flat-sided mandrel adapted to be rotated and onto which strip, guided by means yieldably urged towards the mandrel, is wound and means yieldably urged towards the mandrel to press the spiral seam between adjacent turns of the strip on the mandrel. A tapered flat-sided mandrel 29 is mounted between centre pins 14 (not shown), 24 of a lathe 11 and rotated by a face plate 13 thereof. A saddle 26 of the lathe, moved parallel to the mandrel axis by a screw 27 driven from the mandrel rotating means, carries a plate 33, adjustable transversely thereon. The plate 33 in turn carries a plate 45, adjustable about a transverse axis thereon, carrying adjustably slidable thereon a plate 44. Metal strip 39 from a reel 35, pivotable about a vertical axis on a support 37 bolted to the saddle 26, passes through forming rolls 40, carried by a frame 41 on a support 42 adjustable about a vertical pivot 43 on the plate 44, which give it the desired cross-section. Thence the formed strip is guided onto the rotating mandrel 29 by a guide block 50, and lug 64 thereon, carried by an arm 51 pivoted at 53 to the plate 44 and urged towards the mandrel by a spring 61. A seaming roller 54 carried by an arm 57 pivoted at 58 to the plate 45 is urged against the spiral seam between adjacent turns of the strip on the mandrel by the spring 61 secured to the arm 57. The roller 54 is adjustable on the arm 57 about a vertical axis. A support wire 68 is guided from a reel 69 by rollers 67, 70 to the underside of the formed strip to support the seam when it is pressed on the mandrel. String solder 72, preferably with flux thereon or incorporated therewith, is drawn from a spool through a wire loop 71 to the underside of the strip. After the tube has been formed it is heated to melt the solder and then allowed to cool. Specification 676,076 is referred to.
Patent GB-267280-A (GB)
Title: Improvements in and relating to brakes of tramcars and like vehicles
IPC: B61H7/02
Filed: 1926-02-10
Abstract: 267,280. Maley, A. W. Feb. 10, 1926. Skid; force-transmitting mechanism; fluid-pressure. - A bogie truck of the maximum traction type for tramcars and the like is provided with a track brake 18 on the side of the large wheels 13 remote from the small wheel 14 to a brake shoe 19 operating on the small wheel. The brakes are actuated by a single pneumatic pressure or vacuum cylinder 20 and a, rod 21, a bell-crank 22, operating the track brake 18. while the shoe 19 is operated through a spring 23 so that the maximum pressure which can he applied will not skid the pony wheels 14. In a modification, the brakes are operated by separate pneumatic cylinders the areas of the pistons of which are proportioned to the weight which comes upon the track brake and the pony wheels respectively. The cylinders are controlled by a single cock.
Patent GB-564133-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B13/00
Filed: 1943-03-10
Abstract: 564,133. Optical objectives. TAYLOR, TAYLOR & HOBSON, Ltd., and WYNNE, C. G. March 10, 1943, No. 3905. Drawings to Specification. [Class 97 (i)] In a photographic &c. objective comprising two compound divergent meniscus components located between two simple convergent components and having concave surfaces towards one another, the concave surfaces are axially separated by more than .27 F, F being the equivalent focal length of the objective, and preferably less than .33 F. Each divergent component may comprise a convergent element and a divergent element ; the divergent elements may have refractive indices between 1.62 and 1.68 and AbbÚ V numbers between 21.0 and 31.0, and all the convergent elements refractive indices between 1.70 and 1.80 and AbbÚ V numbers greater than 50. Data for one example are set out in which the divergent elements are made of potassium iodide crystal and all the convergent elements of # magnesium oxide.