baber/WOPTO huggingface dataset:
Patent GB-474663-A (GB)
Title: Improvements in ultra-high frequency marker beacon systems
IPC: G01S19/11
Filed: 1936-02-03
Abstract: 474,663. Directive wireless signalling. BARBULESCO, C. D. Feb. 3, 1936, No. 3194. Convention date, Feb. 4, 1935. [Class 40 (v)] In " blind " flying, a marker beacon is used to radiate an upwardly-directed beam from an horizontal dipole which is received by another horizontal dipole mounted underneath the aeroplane parallel to its direction of flight. The effect of the combination is to produce an apparent reduction in the width of the marker beam thus giving a sharper indication of its presence. The transmitter beacon, Fig. 2, is built as a portable unit. A valve generator V, of the general type described in U.S.A. Specification 1,874,222, is coupled to an horizontal dipole aerial 16, 17 through a coil 8 enclosed in a metallic head 18, which serves to screen direct radiation. Operating potentials are derived from a motor-generator set 29, 30 driven from a battery D, and ammeters 32, 33, 34 are inserted in the aerial filament, and plate circuits. Tuning is effected by a condenser 51 in the grid circuit. The dipole is located a quarter wave-length above ground or above a suitable reflector. The receiving circuit is shown in Fig. 10. The dipole H is coupled to the grid circuit and the incoming signals are shown on a Neon lamp L1 shunted across the output transformer. A further indication is also given on a meter L, which, as shown in Fig. 11, allows light from an independently-energized lamp 60 to flash through an opening in the dial when a disc 67 on the indicator needle 65 is deflected from the centre position. In Fig. 15 a crystal detector 72 is connected in series with a condenser 73 across the aerial inductance 50, and feeds an indicator L2 of the same type. As shown in Fig. 20, the receiving aerial 16, 17 is mounted on brackets 101, 102, so as to lie parallel to the long axis of the aeroplane, the receiving circuits I being enclosed in a stream-lined casing. A test switch is provided to show that the receiver is working properly.
Patent GB-792303-A (GB)
Title: Improvements in or relating to electric switching arrangements
Inventor: BRYER ROBERT FRANK
IPC: H05G1/56
Filed: 1955-02-03
Abstract: 792,303. Switching systems for X-ray apparatus. GENERAL ELECTRIC CO., Ltd. Feb. 3, 1956 [Feb. 3, 1955], No. 3211/55. Class 38 (4). In a system for effecting closure of an X-ray contactor at a zero point in the A.C. supply wave, as described in Specification 693,042, wherein the operating coil 1 of the contactor is connected across the A.C. supply 3 in series with a half-wave rectifier 2 and the normally-open contacts 16 of a control relay 4, the relay winding is connected in the anode circuit of a normally non-conducting electronic tube 6 which, when operation of the contactor is required, is rendered conducting by closure of " exposure " switch 15, the arrangement being such that anode current can commence to flow only at instants in the A.C. supply wave which result in the relay contacts closing during halfa cycle when the rectifier 2 is non-conductive. Energization of contactor 1 commences with the next half-cycle and its contacts close half-a-cycle later, as the operating time of the contactor is arranged to correspond to half-a-cycle. The contactor subsequently holds in, over an auxiliary contact 18 which now short-circuits rectifier 2, until the coil circuit is interrupted by the opening of timer contacts 17. The tube 6 is preferably a cold cathode tetrode, normally held " off " by grid bias 12 and rendered conducting by an A.C. voltage applied to its screen grid upon closure of switch 15. A phase change circuit, such as described in Specification 792,111 may be incorporated so that energization of the contactor may be initiated at the beginning of a half-cycle of either polarity.
Patent GB-158562-A (GB)
Title: Bearing metal alloy of high lead content
IPC: C22C11/10
Filed: 1921-01-26
Abstract: 158,562. Goldschmidt Akt.-Ges., T. Jan. 26, 1920, [Convention date]. Alloys for bearings contain about 74.5-84.5 per cent of lead, up to about 10 per cent of tin, 10-15 per cent of antimony, and about 0.5 per cent of phosphorus. The phosphorus may be introduced in the form of an alloy with one or more metals such as copper, manganese, or zinc. Alloys containing 80 per cent of lead, 10-15 per cent of antimony, 5-10 per cent of tin, and a small proportion of copper, are referred to.
Patent GB-359830-A (GB)
Title: Improvements in or relating to calendars or date indicators
IPC: G09D3/06
Filed: 1931-02-02
Abstract: 359,830. Date-indicators. NAMIKI MANUFACTURING CO., Ltd., 87, Bishopsgate, London.-(Kabushiki Kaisha Namiki Seisakusho ; 1356, Sugamo-Machi, Kitatoyoshima, Tokio.) Feb. 2, 1931, No. 3294. [Class 106 (iv).] In a date indicator in which the day names and date figures are marked on two drums rotatably mounted on a common axis one of the drums is adapted to move angularly while the other drum is movable angularly and axially, the two drums being connected by detent means which permits them to move as a single unit in one direction but independently in the opposite direction. In the form shown in Figs. 1 and 2, a base g carries end supports f for a screw e with ball bearings h for flanged endplates c, k. The endplate c is formed integral with a drum a bearing the names of the day of the week and the endplate k has mounted thereon rods j extending through slots in a plate d forming a nut engaging the screw e and constituting the endplate of a second drum b bearing the date figures which are arranged in the form of a spiral, Fig. 4. The inner surface of the drum a is formed with a detent or pawl r, Figs. 3 and 4, adapted to co-operate with any one of a number of grooves q cut in the flanged end p of the drum b. In one direction of rotation the pawl r rides over the grooves but in the other direction the rotation of the drum a carries the drum b with it as a unit. The endplates c, k support a cover m with apertures n, o, through which the date indications are renewable. A small container s is mounted on the base g for the reception of cards bearing the names of the months.
Patent GB-426086-A (GB)
Title: Improvements in gas-heated hand irons
IPC: D06F75/02
Filed: 1934-02-01
Abstract: 426,086. Hand-irons. GAS LIGHT & COKE CO., DUNNING, E. W. B., and HOLLOWAY, D. M., 84, Horseferry Road, Westminster. Feb. 1, 1934, No. 3297. [Class 138 (ii)] A gas-heated hand-iron is provided with two supporting surfaces of which one is the usual working surface 1 and the other, which is unheated and is disposed at an angle, usually a right angle, to the first may be formed by the swan neck 2 of the gas supply pipe and an abutment 3 whereby the iron can be upended and heated while in this position. At least two sets of openings 12, 13 disposed as shown are provided which serve respectively as secondary air inlets and as outlets for the products of combustion when the iron is in use and as outlets and inlets respectively when the iron is supported on the surfaces 2, 3.
Patent GB-344164-A (GB)
Title: Improvements in wardrobes
IPC: A47B61/00
Filed: 1930-01-31
Abstract: 344,164. Wardrobes. WEBB, W., 97, Hackney Road, London. Jan. 31, 1930, No. 3337. [Classes 52 (i) and 52 (iii).] A wardrobe of the kind divided into two parts by a vertical partition is fitted also with a sliding shelf serving also as a writing table. The Figure shows a wardrobe with a central partition 5, drawers 12, 13,14, and shelves 11,15. Beneath the shelf 15 and on the partition 5 and the right-hand side of the wardrobe are runners for channelled edges of a board 16 which may be drawn out to serve as a desk. Partitions 21 form receptacles for stationery. Garment supporting fittings 6, 22, 26 are added, together with a toilet-accessory shelf 24 and mirror 25.
Patent GB-848503-A (GB)
Title: Improvements in the feeding mechanism of sewing machines
IPC: D05B27/02
Filed: 1958-02-03
Abstract: 848,503. Sewing machines. LESLIE, I. A. Jan. 5, 1959 [Feb. 3, 1958], No.3391/58. Class 112 A sewing machine work feed comprises a cam member mounted on a hollow rotary driving shaft for imparting vertical movement to a feed member, a lever pivoted within said shaft and having an end projecting from and end of said shaft, means for adjusting the angular position of said lever to vary the eccentricity of said projecting end in relation to the axis of said shaft, and means for transmitting the throw of said projecting end to said feed member for imparting horizontal movement thereto. A vertical feed dog 4 is carried at one end of a flexible spring bar 3 pivoted at its other end, at 2, to a fixed frame 1. A hollow rotary shaft 15 carries at one end a cam 14 which engages a flange 12 on bar 3 for imparting feed lift movements thereto. A lever 17 is pivoted at one end, at 18, within shaft 15, and the other end 16 of lever 17 projects beyond shaft 15 to engage in a vertical slot 13 formed in a lug 11 on bar 3. An intermediate inclined portion 19 on lever 17 is engaged by opposed fingers 20 which project inwardly through slots 22 in shaft 15 from a sleeve 21 slidable on the latter. A rod 25, slidable in frame 1, carries a yoke 24 engaged in a groove 23 in sleeve 21 for moving the latter to vary the position of end 16 relative to the axis of shaft 15. whereby forward or reverse feed advance movements of varied degree may be imparted to bar 3. In a modification lever 17 is pivoted intermediate its ends, and the inclined portion 19 is located at one end thereof. In further modifications bar 3 is dispensed with and the feed dog 4 is mounted to slide in the vertical direction. As shown in Fig. 7, the feed dog is carried by a horizontal bar 38 pivoted at 40 to the upper end of a vertical bar 41 pivoted at its lower end, at 42, to a crank 43. Cam 14 engages bar 38, and end 16 engages a slot provided in a plate 39 on bar 38. Alternatively, the plate 39 may be dispensed with and end 16 coupled by a bar 44 to bar 41. By turning crank 43 the feed dog may be lowered below the work plate for darning.
Patent GB-524543-A (GB)
Title: Improvements in or relating to cinematographic cameras
IPC: G03B7/06
Filed: 1939-02-01
Abstract: 524,543. Kinematograph cameras. LEITZ GES., E. Feb. 1, 1939, No. 3413. Convention date, April 1, 1938. [Class 97 (i)] In a camera having means for adjusting the exposure frequency coupled to means for adjusting the shutter opening, an indicating device is connected both to such means and to means for controlling the lens aperture, and is so arranged relatively to the indicator of a light intensity measuring device, comprising a photo electric cell and a galvanometer, that the " light sensitivity " of the camera indicated by it may be adjusted to suit the intensity of illumination ; adjustment may be effected by setting two of the variable camera elements, and then adjusting the third until the two indicators occupy the same part of a scale. As shown, the light intensity is indicated by the needle 3 of a glavanometer moved over a scale 4 by a photo-electric cell 2. A pointer 5, on a pivot 7, also indicates on the scale 4, and is positioned by adjustment of the variable camera elements. Adjustment of the diaphragm of the camera lens 11 causes a lever 10, engaging a cam surface on a lever 6, to turn the lever 6 about the pivot 7, and, through a spring 8 connecting the arms 12, 13 of the pointer and lever, to move the pointer 5. The arms 12, 13 are variably separated by the tapered end 14 of a rod 15 movable longitudinally through mechanism operated by knobs 36, 37. The spindle 22 of the knob 36 carries a disc 25 having a cam groove engaging a pin 26 on a lever 27 sliding a sleeve 28 on a tubular shaft 32 carrying a shutter blade 34. The sleeve 28 carries a pin 29 passing through a longitudinal slot 30 into a helical slot 31 in a shaft 33 within the shaft 32 and carrying a shutter blade 35 ; movement of the knob 36 and, consequently, of the sleeve 28 produces relative rotation of the shafts and shutter blades. The knob 37 is carried on a plate 38 secured to a sleeve formed with a cam flange 19 engaging a pivoted rocker 39 serving to regulate a speed governor 40 ; rotation of the sleeve by the knob 37 varies the exposure frequency. The knobs 36, 37 normally move together, being locked by a pin 41 entering a hole in the plate 38, and the relative movement of the shutter blades is compensated by the accompanying adjustment of the exposure frequency. The knobs may be separately rotated by first lifting the knob 36 to remove the pin 41 from the hole in the plate 38. The resulting relative movement between a pin 20 on the sleeve 19 and a helical groove 21 in a sleeve 18 slidably keyed to the spindle 22 then raises or lowers the sleeve 18, and causes a circumferential groove 17 thereon to turn a lever 16 and move the rod 15 longitudinally, thus varying the separation of the arms 12, 13 and moving the pointer 5. A modification is described in which the function of the tapered end 14 is performed by cams, and toothed racks operated by lateral or rotational movement of a single knob cause variation of the exposure frequency and the shutter opening.
Patent GB-1460852-A (GB)
Title: Method of producing metal from metal oxides
IPC: C21B11/02
Filed: 1974-01-25
Abstract: 1460852 Reduction of metal oxides SVENSKA KULLAGERFABRIKEN AB 25 Jan 1974 [26 Jan 1973] 03481/74 Heading C7D Metal is extracted from oxides by a process which includes blowing pre-reduced oxide material in a carrier gas into the lower part of a furnace containing a stack of solid reductant, the temperature of that part of the stack being at or above the melting point of the metal. In a preferred embodiment, coke 5 is contained in a shaft furnace 4 while oxygen in pipe 8 and hydrocarbon in pipe 7 is blown in though tuyeres 10; alternatively or additionally, the furnace may be heated electrically, e.g. with plasma burners or through graphite electrodes. Pre-reduced oxidic ore is blown through pipe 21 into the bottom of the furnace using inert or reducing carrier gas and final reduction and melting occur simultaneously to provide molten iron 9. Preferably, outgoing gases 12, a mixture of carbon monoxide and hydrogen, are used to prereduce the oxidic material 16 in a fluidized bed 20, and to dry ingoing oxidic material at 17, and may be recycled to an upper part of the furnace at 30. By using these outgoing gases in the pre-reduction step, the process is self-regulating. The method is particularly applicable to iron ores e.g. haemetite, but it may be applied to ores containing tungsten, chromium, manganese, nickel, copper, cobalt or vanadium.
Patent GB-176303-A (GB)
Title: Improvements in and relating to carbureting devices
IPC: F02M7/22
Filed: 1920-08-24
Abstract: 176,303. White, A. E., (Rector Carbureter Co., Inc.). Aug. 24, 1920. Vaporizers, external.-Fuel from a flame-heated vaporizer 16 enters a mixing-chamber 90<1> past a valve 97. An air valve 95 with substantially triangular ports is worked from the usual throttle lever by bevel-gear; the fuel-valve is opened simultaneously with the air-valve; the hub 98<1> of the latter is screwed and moves the fuel-valve through the corresponding screwed sleeve 119, the fuel-valve being adjustably attached to the sleeve. The air supply is in two parts, one direct from the atmosphere through the port 116, the other through the air-heating chamber 113; the relative proportion of these two parts is controlled by a half barrel 117 moving with the airvalve 95, so that at slow running the air supply is very hot, while at top speed relatively more cold air is admitted. A spring-pressed piston 128, Fig. 3, is subject on the closed side to the engine suction; with the engine running the atmosphere keeps the spring compressed, but when the engine stops the spring moves the piston out. A stop 131 on the piston is then taken out of the path of a rod 133 on the air-valve 95, to allow the usual retracting-spring on the throttle lever to close the fuel valve 97 completely and prevent leakage; normally, the stop is in the path of the rod, and during slow running just keeps the valve open.
Patent GB-1026660-A (GB)
Title: Slide and vibrato circuits for electronic musical instrument
IPC: G10H1/043
Filed: 1965-01-27
Abstract: 1,026,660. Electrophonic musical instruments. WURLITZER CO. Jan. 27, 1965 [Jan. 27, 1964], No. 3608/65. Heading G5J. The Figure shows one of twelve tone generators providing the top and two lower octaves of an electrophonic musical instrument. Each tone generator consists of a transistorized Hartley oscillator 62 providing the basic tone and coupled to two transistor frequency divider circuits 28, 32 providing respectively the first and second octaves below the basic tone. The output of the Hartley oscillator is converted to a triggering pulse by a differentiating circuit 100 and 106 and is fed through diode 108. The oscillator output is connected to a keying arrangement at 36 and the divider outputs to key and pedal at 38, 116 and 40, 130. A vibrator effect is introduced by applying the output of a seven c.p.s. oscillator to the Hartley oscillator base. The oscillator is voltage sensitive so that its output is frequency modulated. A glissando effect is produced by switching the base to earth through resistor 60 thus flattening the oscillator a semitone, the frequency sliding up when the switch is opened.
Patent GB-161760-A (GB)
Title: Improvements in or relating to luggage, parcel or the like carriers
IPC: A45F5/10
Filed: 1920-02-06
Abstract: 161,760. Dickens, C. Feb. 6, 1920. Parcel and like carriers.- A parcel or like carrier comprises a frame 1 having pivotally mounted within it a second frame formed with slotted end parts 4 through which and also through perforations 8 in the bottom of the outer frame the carying slings &c. 7 pass. The slings are adjusted to the required size by rotating the inner frame within the outer one; a sliding part 12 on the upper member 10 of the latter carries depending tongues 13 adapted to engage and retain in position the upper member 11 of the inner frame. The parts 10, 11 are grasped by the hand for carrying.
Patent GB-719536-A (GB)
Title: Improvements in and relating to clip devices for ground joints in glass or like material
IPC: B01L3/00
Filed: 1951-02-16
Abstract: 719,536. Valves. ROBINSON, C. V. May 15, 1952 [Feb. 16, 1951], No. 3820/51. Class 135. [Also in Groups XVII, XXV and XXVIII] A device for applying end pressure to ground joints in glass or like material consists of a spring clip of generally hairpin form with the ends of the limbs 6, 7 terminating in part loops 2, 3 substantially coaxial with one another which are respectively adapted to be sprung over the respective parts of the joint to each take a bearing on a convenient part thereof, the clip being sufficiently resilient to enable it to apply end pressure to the joint. The clip is adapted for holding together joints in articles such as a ball and socket pipe joint, a turn-cock or a bottle stopper. The end pressure is supplied by a loop joining the limbs 6, 7. The loops 2, 3 may be unequal in size and one may be inset if desired. In a modification, the limbs 6, 7 may cross over.
Patent GB-538320-A (GB)
Title: Improvements relating to time-lag devices such as incorporate gearing
IPC: F16H19/00
Filed: 1940-03-02
Abstract: 538,320. Intermittent toothed gearing. ROTHERHAM & SONS, Ltd., and LITCHFIELD, S. E. March 2, 1940, No. 3939. [Class 80 (i)] Relates to a time-lag device of the kind including a driving element in the form of a rack, quadrant or like gear with discontinuous teeth, which is always returnable after an operation to the same position, a time-delay mechanism and a train of gearing there-between, the timedelay mechanism including a vaned member, escapment wheel or the like which is not itself adjustable. According to the invention, the train of gearing includes a pinion meshed with the driving element which pinion can be positioned by an irreversible mechanism relatively to the teeth of the driving element when stationary, so that the period of operation of the time-lag device may be varied without varying the length of the operating stroke. The driving element comprises a toothed sector 11, Fig. 1, integral with an arm 12 pivoted to an actuating rod 13 which may be spring or solenoid actuated, a stop 14 being provided to limit the return movement. The sector meshes with a pinion 15 which is long enough to mesh also with a wheel 21 which drives a pinion 22 which, through a ratchet wheel 24, Fig. 2, and gearing 25, 26, 28 drives the escapement wheel 27. The pinion 15 is mounted on an arm 16 carrying a toothed portion 17 with which a worm 18 engages. By rotating this worm, the pinion 15 can be moved to any position on the sector 11 to vary the time during which the delay mechanism is effective. After the sector 11 leaves the pinion 15, it completes the remainder of its stroke rapidly. Specification 537,697 is referred to and the Provisional Specification refers also to Specification 538,209.
Patent GB-138897-A (GB)
Title: Improvements in or relating to the manufacture of lace, nets, veilings, curtains and the like
IPC: D04C1/10
Filed: 1920-02-10
Abstract: 138,897. Cordier, G. Feb. 11, 1919, [Convention date]. Lace. - Relates to making lace, nets, veilings, curtains &c. on machines of the Levers or gothrougti type. The pattern is made as a single fabr i c simultaneneously with two grounds or openwork nets of different characters which are superposed but quite distinct. The threads which form the two grounds may be combined at certain parts of the lace to unite the grounds into a single fabric. Before or after finishing and trimming off the floating threads, certain parts of one or other ground may be removed. In the example shown in Figs. 1 and 2, a fine ground B is made simultaneously with a course hexagonal ground C. In making the spots in which the pattern shows on the fine ground, the two grounds are united round the edges of the spot whilst the coarse ground threads are utilized as far as possible to form the single fabric pattern D together with the fine ground threads. In making the band E, the threads of the two grounds are combined along the lines F, K and the coarse ground C is subsequently removed between these lines. In the example shown in Figs. 3 and 4, the threads of the two grounds are used to form the single-fabric pattern G, and the fine ground is removed, leaving the pattern showing on the coarse ground.
Patent GB-1039661-A (GB)
Title: Improvements in or relating to the manufacture of connecting rods e.g., for compressors
IPC: B23K11/00
Filed: 1964-01-30
Abstract: 1,039,661. Making connecting rods or pistons; welding by pressure. DANFOSS A.S. Jan. 30, 1964 [Jan. 30, 1963], No. 4058/64. Headings B3A and B3R. [Also in Division F2] A connecting rod with a spherical head, e.g. for compressors of refrigerators, is made by depositing a steel ball in a closely fitting electrode and joining a shaft to the ball by electrical welding under pressure. The ball may fit into a socket in a piston or after a flat has been ground on its end the ball may fit directly into a cylinder and function as a piston. A hardened steel ball 1, Fig. 2 (not shown), e.g. a commercial ball bearing is located in a fitting recess 2 in a one or two piece electrode 3. The shaft 4 of a softer metal than the ball 1 and having a flat end is connected to an electrode 5 and resistance welded to the ball 1 which remains substantially undeformed. Subsequently the weld is post-heated by a short intense current passed between the electrodes 3, 5. A ring 10 or a block which is subsequently bored is resistance welded to the other end of the shaft 4 using electrodes 5, 11. The shaft 5 may be solid or tubular or provided with a recess 8.