baber/WOPTO huggingface dataset:
Patent GB-421340-A (GB)
Title: Improvements in or relating to methods of and arrangements for modulating high frequency transmitters
IPC: H03C1/62
Filed: 1933-06-19
Abstract: 421,340. Wireless transmitting systems. PUNGS, L., Technische Hochschule, Brunswick, Germany. June 19, 1933, Nos. 17428 and 17429. Convention dates, July 6, 1932 and Aug. 15, 1932. [Class 40 (v)] In a modulating system of the kind described in Specification 387,182 in which the mean carrier intensity is varied with variations in signal volume, and in which weak original signals are over-amplified prior to modulation, means are provided for imposing a lower limit on the carrier intensity, and a variable-mu valve is used for pre-modulation amplification of the signal. As shown in Fig. 2, signals from a microphone M are amplified at V1 and are applied by a transformer T1 to modulate the carrier wave, which is also supplied to the grid circuit of the amplifier RS from a source O. The mean carrier amplitude is determined by the bias applied to the grid of the valve RS from the potentiometer P. This is so adjusted that with no modulation present, a low limit is placed on the carrier amplitude, whilst as the signal increases in volume, the carrier grows in amplitude owing to the effect of the amplifier V2, the full-wave rectifier G and the directcurrent amplifier R. The circuits may be arranged so that a feeble signal steps up the carrier immediately to a higher level than that prevailing during pauses ; or a long pause may, by means of a time-delay switch, raise the carrier amplitude above its lower limit for the purpose of conveying an interval signal. The amplifier V1 includes a variable-mu valve arranged to amplify weak signals more than strong signals with a view to correcting the non-linear detection at the receiver. The valve has its screen-grid connected directly to its plate ; its grid is negatively biassed, and a resistance in its grid circuit causes the bias to increase with stronger signals. The output circuit may include resistance or transformer coupling.
Patent GB-530648-A (GB)
Title: Improvements in travelling grate stokers
IPC: F23H1/04
Filed: 1939-06-16
Abstract: 530,648. Travelling grates. BABCOCK & WILCOX, Ltd., and HAYWARD, C. H. G. June 16, 1939, No. 17693. [Class 51 (i)] In a travelling grate comprising rows of bars 8 mounted on transverse carrier bars 10, slotted sleeves 11 are provided between the bars 8 and carrier bars with which the openings 12 of the bars 8 engage. The ends of the sleeves are chamfered and when it is desired to replace a bar 8 it is first broken and removed and the sleeve or sleeves with which it was engaged moved to one side to allow a new bar to be inserted after which the sleeve is moved into engagement with the new bar. To allow the sleeve to be moved split pins 14 for retaining the rows of bars on the carrier bars are first removed from the ends of the carrier bar. The bars on one carrier bar engage between the bars on adjacent carrier bar and rest on the sleeves thereon. The end bars 8a of alternate rows of bars engage directly with a carrier bar and rest at one end on a short sleeve 11a of an adjacent carrier bar. Chamfering of the sleeves facilitates their movement to one side when it is desired to renew a bar 8. Specification 520,850 is referred to.
Patent GB-612989-A (GB)
Title: Improvements in and relating to portable folding chairs and the like
IPC: A47C4/52
Filed: 1946-06-13
Abstract: 612,989. Seats. HILL, L. G. June 13, 1946. No. 17698. [Class 52 (ii)] A portable folding chair comprises two armrests of box formation to accommodate a back rest and a seat when not in use, connecting means whereby the armrests may be closed one against the other and means for assembling the back rest and the seat with the armrests when the latter are extended. As shown two armrests 5, 6 of box formalion are adapted to house the seat 13, and back rest 14 when not in use and are connected together by a pair of flaps 7, hinged together which serve to support the seat 13, the flaps 7 being supported by pairs of flaps 10, 11. The flaps 7, slope rearwardly and the front flaps 10 also slope rearwardly at their top. The seat 13 is built on a wood or metal base 16 and is provided with a fillet 21 behind which the edge of the base 17 of the back rest engages. The back rest is supported additionally by a rod 18 provided with heads 19 which engage slots 20 in the armrests. When closed together the armrests are held by spring-loaded rotatable catches 22 on one armrest and having hook portions to engage the upper portions of the opposite armrest while the lower ends of the catches enter apertures 27 in lugs carried the opposite armrest. The armrests when the chair is in use may house an electric lamp or serve as receptacles for other articles. Telescopic supports may be built into the armrests which, when extended, may support a canopy.
Patent GB-789655-A (GB)
Title: Improvements in or relating to ball couplings
IPC: B60D1/06
Filed: 1956-06-08
Abstract: 789,655. Vehicle couplings. THOMPSON, R. E. June 8, 1956, No. 17723/56. Class 103(5) The ball member 12 of a coupling is secured in position by a bolt 11 which is insulated from it to enable an electrical connection 16a to be made from the towing vehicle to the trailer via the flexible leads 10, 18 and 20. The earth return from the trailer is through the socket 14 and the ball 12 to the tractor chassis 13 but a spring contact 21 may also be provided.
Patent GB-167659-A (GB)
Title: Protective covers for electric ignition plugs
IPC: H01T13/06
Filed: 1920-06-29
Abstract: 167,659. Evans, A. F., and Royal National Lifeboat Institution. June 29, 1920. Sparking-plugs.-A cover a of insulating-material envelops the whole of a sparking-plug and has embedded therein a connecting- member for the high-tension lead. An additional U-sheath may be clamped within the open end of the cover a by the screwing of the plug against its seating in the engine.
Patent GB-545917-A (GB)
Title: Improvements in or relating to the lubrication of bearings
IPC: F16N7/32
Filed: 1940-12-17
Abstract: 545,917. Lubricators; bearings. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Dec. 17, 1940, No. 17796. [Classes 12 (i) and 12 (iii)] Bearings are lubricated by an oil-laden gas whirled around by a turbulator so. as to impinge on the surface of the lubricant and then moved laterally to the bearings. The rotary-cutter shaft 24 of a boot-sole trimming machine is carried by ballbearings with outer races 16, 18 mounted in a housing 12 containing lubricant the level of which is kept below the balls and below a disc or collar 50 integral with the shaft. 'This collar' creates a turbulence in the air or gas within the housing so as to form a groove A in the surface of the lubricant. This air, becoming ladeii with lubricant, is thrown off the collar in the directions B, C towards and through the bearings and to spaces D, E behind the bearings, the oil returning by passages F, G to the sump. The outer race 18 slides in the housing under pressure from a washer 26 and springs 28. The level in the sump is maintained by a barometric oil-feeding device comprising a glass container 70 clamped into the hinged lid of an oil cup 74, the lid being secured by a bail 90 and screw 92. The level may be adjusted by washers between the cup and the container which may carry a spring-pressed valve to close the container when disengaged from the cup.
Patent GB-240131-A (GB)
IPC: C01B32/942
Filed: 1925-07-13
Abstract: 240,131. Siemens & Co., Geb. Sept. 19, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Speci. fication. Alloys.-According to the Specification as open to inspection under Sect. 91 (3) (a), ferrosilicon is prepared in an electric furnace employing resistance heating, and the electrodes, which are fixed or stationary, are protected by a mass of granular carbon or other non-fusible material. The conductor which is placed between the electrodes in order to initiate the reaction is preferably composed of materials which ultimately take part in the process. This subject-matter does not appear in the Specification as accepted.
Patent GB-1181815-A (GB)
Title: Means for Feeding Components
IPC: B23Q11/00
Filed: 1967-04-19
Abstract: 1,181,815. Feeding articles. LA TELEMECANIQUE ELECTRIQUE. 19 April, 1967 [26 April, 1966], No. 17968/67. Heading B8S. Holed article 80 slides down shoot 14 and is stopped by the nose 91a of shoot portion 91 pivoted at 92 to the fixed shoot 14. Operating part 33 is connected to portion 91 by rope 95 and descends to lower said portion 91 to permit the article to slide down said portion 91 and to fall through hole 81 on to element 62 carried by rotating table 9. At the same time finger 93 secured to portion 91 passes upwards through hole 94 in shoot 14 to stop the next article. The cycle is repeated.
Patent GB-1259689-A (GB)
Title: Improvements relating to directional couplers
IPC: H01P5/18
Filed: 1969-04-08
Abstract: 1,259,689. Strip-line directional couplers. INTERNATIONAL BUSINESS MACHINES CORP. 8 April, 1969 [8 April, 1968], No. 17995/69. Heading H1W. A strip-line directional coupler includes a layer of semi-conductor material. As shown, a layer 5 of, e.g., silicon carries a relatively thin coating 4 of insulating material (e.g. SiO 2 ) on one side and a conductive layer 3 on the other. Coupled conductors 1, 2 are deposited on the insulating layer 4. It is stated that the capacitance of the transmission line 1, 2 is determined by the thickness h 1  whilst the inductance is determined by h 1 +h 2 . Since the line has large inductance and capacitance it has large delay and advantageous reduction in physical length of the line is possible. The Specification contains a theoretical discussion of the coupler.
Patent GB-574946-A (GB)
Title: Improvements in or relating to electrically insulating plates provided with a systemof electrical connections
IPC: H05K1/09
Filed: 1943-11-02
Abstract: 574,946. Wireless receiving sets. STANDARD TELEPHONES & CABLES, Ltd. Nov. 2, 1943. No. 18107. Convention date, Nov. 5, 1942. [Class 40 (v)] [Also in Group XXXVI] Multiple-connection panels for radio sets &c. are produced by printing on the surface of an insulating sheet 9 with a conductive ink, such as graphite ink, the pattern of the connections 10, 11 required, and then depositing metal on the inked surface by electrolysis. Areas 18, 19 for temporary connections during electrolysis are included in the printed pattern and are joined to the connections 10, 11 by necks 16, these being subsequently punched out leaving holes 20, 21 so isolating the connecting elements. Holes 22 may be punched prior to the printing operation so that the conductive ink coats the periphery of the holes and may connect with conductive areas to be formed on both faces of the sheet.
Patent GB-545265-A (GB)
Title: Improvements in device for lifting the warp threads on looms
IPC: D03C1/14
Filed: 1940-12-24
Abstract: 545,265. Loom healds. EGLI, E. Dec. 24, 1940, No. 18110. [Class 142 (i)] Healds 1 on a bar 2 are held upright by accurate fitting, by their own weight, or by springs or weights located beneath the bar 2, which is slidable vertically in guides 3. The means for raising and lowering the healds may be below the bar 2. Springs 5 serve to hold the bars 2 downwardly in the guides 3. By providing a bar 12 within a slot in each of the bars 2, and securing the healds to the bar 12,the free portions of the healds can be balanced. Alternatively the healds can extend downwardly through the carrier to serve this purpose. The springs 5 can be attached either to the bars 2 or to the bars 12.
Patent GB-1248115-A (GB)
Title: Improvements in or relating to apparatus for treating webs, films, sheets or the like with liquids
Inventor: GREENHALGH HAROLD
IPC: B29C71/00
Filed: 1969-04-09
Abstract: 1,248,115. Zig-zag roller apparatus. TRANSPARENT PAPER Ltd. 7 April, 1970, No. 18196/69. Heading D1L. The treating of a web with liquid is performed in an apparatus having at least one upper non-rotating tube or rod, at least one driven upper roller, and a series of lower rods, tubes or rollers, these being undriven and all the rods, tubes or rollers being disposed in a tank of liquid. The non-rotating upper guide(s) # may be above, at or below the liquid surface. The web is passed through the bath in a serpentine manner around the guides as shown. Two webs may be passed through at once in paths such that they are separated occasionally (Fig. 8, not shown). The guides 8 may be of glass or ceramic material and the web may be cellulose film which is passed through several baths to be washed.
Patent GB-271679-A (GB)
Title: Improvements in or relating to mountings for course-setting bomb sights for use on aeroplanes, airships, and the like
IPC: F41G3/24
Filed: 1926-07-21
Abstract: 271,679. Hawker Engineering Co., Ltd., H. G., and Cowdrey, C. L. July 21, 1926. Sights.-A mounting for a course-setting bomb sight comprises a pair of telescopic members one of which carries the sight. As shown, the sight b, of any suitable form, is carried at the lower end of a tube a mounted to slide without rotation in a tube c which is attached to the cockpit. The tube a is moved axially by a screwed spindle h operated by a handle i at the top, and is clamped in any position by a split ring m. The tube c may be mounted so as to be rotatable, if desired, about one or more axes.
Patent GB-1375212-A (GB)
IPC: H01J37/24
Filed: 1972-01-28
Abstract: 1375212 Automatic power regulation GENERAL ELECTRIC CO Ltd 28 Jan 1972 [29 Jan 1971] 8320/74 Divided out of 1375211 Heading G3X [Also in Division H2] A glow discharge electron gun 1 is supplied by a circuit comprising a series ballast impedance 9 connected between the gun and a power source 10, the impedance having a value such that the variation of the power dissipated in the gun with variations of the anode-cathode impedance of the gun is minimized. A graph of the normalized voltage across the gun plotted against the normalized power dissipated in the gun has a portion for which a substantial variation of the voltage causes only a small variation in the power. By selecting the value of the impedance so that the gun operates in this portion of the graph, the power dissipated in the gun is independent of the gun impedance.
Patent GB-186185-A (GB)
Title: Improvements in and relating to crank shaft bearings
IPC: F16C9/03
Filed: 1921-07-06
Abstract: 186,185. Knapp, F. E. July 6, 1921. Portable turning-apparatus; cutters. - In an end thrust bearing mounted on the forward end portion of an engine crank shaft to coact with the engine body at the exterior thereof, a boss 13<1> of a disc 13 has a radial dove-tailed groove 23 in which is fitted a cutter 29. Before the parts are assembled, the disc 13 is slipped on the shaft until the cutter 29 bears against the body 11, and the disc is rotated until the cutter has made a seat 11<1> for the boss 20<1> of a thrust ring 20.
Patent GB-339658-A (GB)
Title: Improvements in receptacles for gramophone records or similar disc-like articles
IPC: A47B81/06
Filed: 1929-06-14
Abstract: 339,658. Lawler, A. C. June 14, 1929. Contents, delivering.-In a case or cabinet for gramophone records the records &c. 6 are projected from compartments defined by strips 4, 4<a> and pins 5 by an oscillating arm 7 sliding on a rod 8 and engaging a forked end 32 of a member 10 which slides in a slot 11 and carries a pointer 10<a> to indicate which record &c. the projecting mechanism is opposite. When the indicating member is positively moved, the actuating member moves with it. In a modified form shown in Fig. 3, the ejecting arm 7 slides on a roller 20 and the pointer 10<a> is in a vertical position. In both cases the surface on which the records &c. rest is arranged to slope downwards towards the back of the receptacle. The handle of the arm 7 may be arranged to be shorter than the length of its sliding-piece.
Patent GB-1491837-A (GB)
Title: Liquid detergent and softening composition
IPC: C11D1/04
Filed: 1976-05-05
Abstract: 1491837 Detergent composition MORTONNORWICH PRODUCTS Inc 5 May 1976 [20 Aug 1975] 18416/76 Heading C5D [Also in Division D1] A liquid composition having detergent and softening properties for use in washing of fabrics comprises a surfactant linear primary alcohol ethoxylate, 8-(4-hexyl-5-carboxycyclohex-2,3- en-1-yl)-octanoic acid or its disodium salt, and an alkanolamine, such as diethanolamine. The composition may also contain water.
Patent GB-377397-A (GB)
Title: Flexible couplings for rotating shafts and the like
IPC: F16D3/04
Filed: 1931-06-27
Abstract: 377,397. Motor vehicle driving gear. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and ANDREWS, H. I., 9, St. Andrew's Road, Enfield, Middlesex. June 27, 1931, No. 18637. [Class 79 (ii).] The invention comprises improvements in a linkwork coupling particularly for driving electric railway vehicle axles wherein the coupled members have relative radial but only slight relative angular movements, of the kind in which torque is transmitted from a driving spur wheel 3, rotatably mounted on a fixed quill shaft 4, to a floating intermediate member 6 by a pair of equal parallel links 7, 8 and from the intermediate member to the driven member, a crank disc 22, by a similar pair of links 14, 15 perpendicular to the first pair. Spherical bearings may. be fitted to both ends of the links 14, 15 to permit the slight deviation from parallel alignment of the shafts. The improvement consists in making one member, such as the driving spur wheel 3, hollow to form a housing for the intermediate member 6 which is restrained from axial movement by the walls 3, 3a of the driving wheel 3. The intermediate member 6, which houses the links, is also hollow being composed of flanged discs 6a, 6b welded together. The links 7, 8 are attached at one end to pins 9, 10 not diametrically opposite on the intermediate member 6, and at the other end to pins 11, 12 on the wheel 3. The links 14, 15 are attached at one end to pins 16, 17 on the intermediate member and at the other, to pins 20, 21 on the driven crank disc 22. The pins 11, 21 ; 12 and 20 pass through three equidistant clearing apertures 6c in the intermediate member leaving an equilateral triangular bracing between them. Clearing apertures are also provided in the driving member 3 for the pins 20, 21. A two part cover 27, 27a is provided.
Patent GB-741423-A (GB)
Title: Improvements in or relating to electric protective systems
IPC: H02H3/30
Filed: 1952-07-24
Abstract: 741,423. Protective cut-out arrangements. GENERAL ELECTRIC CO., Ltd., and GOODINGS; D. B. July 24, 1953 [July 24, 1952; Oct. 20, 1952], Nos. 18786/52 and 26334/52. Class 38(5) In a balanced voltage protective system, the integrity of the land lines or pilot wires is checked by a circulating direct current, means being provided responsive to a change in the value of the circulating current from normal for rendering the system unresponsive to supply system faults. As shown in the drawing of the first Provisional Specification, a battery 20 is connected directly to one pilot wire 15 and through relay coils 21, 24 to the other pilot wire 14, the return including a resistance 30 and coil 31 of a relay 32. The effect of coil 24 is normally balanced by that of a coil 26, so that contacts 29 of this relay (25) are normally closed. Similarly, coil 31 (in relay 32) is normally balanced by a coil 34 fed from a separate battery 35, so that contacts 33, 37 are normally closed. In the event of a short circuit, open circuit or reversal of the pilot wires, relays 25, 32 become unbalanced and contacts 29, 37 open to prevent operation of comparison means 13, and contact 33 opens to break the circuit of the the circulating current. The coil 21 changes over its contact from contacts 28 to 18 in the event of a reduction of the insulation resistance and so de-energizes coil 26; at the same time a resistance 19 is put in series with coil 31 so upsetting the balance of relay 32 also. In a modification, the relay coil is omitted and coils 24, 26 act as balanced restraining windings in a relay also having an operating winding fed by a current proportional to the circulating A.C. in the pilots, and a further restraining winding responsive to the current in the system to be protected. Coils 31, 34 are similarly arranged at the other end of the system. A further relay corresponding to relay 32 has a contact in series in the circuit of the circulating D.C. It is stated that an indication may also be given on failure of the the pilot wires. Specification 699,638 is referred to.
Patent GB-602306-A (GB)
Title: Improvements in and relating to electrode structure for x-ray generators
IPC: H01J35/08
Filed: 1943-11-12
Abstract: 602,306. X-ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 12, 1943, No. 18830. Convention date, Nov. 16, 1942. [Class 39 (i)] The target surface of the anode of an X-ray tube for radiographic or diagnostic purposes is formed of a metal treated so as to have its grain structure arranged in parallel relation and extending obliquely to the target surface. The whole surface of the anode may be formed in this manner ; as described, a button 21, Fig. 4, is cut transversely from a bar of the target material, e.g. tungsten or copper which has been rolled along its length. The button may be elliptical or circular in shape and is cast in or soldered in a recess 31 of the anode and is arranged so that the grain structure is directed along the direction of the cathode. Preferably, pure electrolytic metal is used.