会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明专利
    • Improvements in or relating to pianofortes and like keyboard instruments
    • GB627304A
    • 1949-08-05
    • GB2348846
    • 1946-08-08
    • CHARLES EDWARD WRIGHT
    • G10C3/12
    • 627,304. Pianofortes. WRIGHT, C. E. Aug. 8, 1946, No. 23488. [Class 88 (ii)] A handle at the end of the keyboard is set according to the key signature of the composition to be played and the appropriate white notes are automatically sharpened or flattened. The black keys are required only for accidentals. The white keys may be coloured to identify them with the notes they represent. Auxiliary keys provided between B and C and between E and F may also be distinguished by colouring and are used to play the naturals of these notes when they occur as accidentals. Piano action, Figs. 2, 16 and 29. Each hammer is operated by a jack J mounted on a lever H1 which is coupled to a similar lever H2 pivoted at a lower level. Each white key LK is coupled by a wire W to a lever or lift MIL pivoted at PC to a control lever L. When the key is pressed, the lift MIL engages H2 to operate the hammer. The control lever L is adjustable about a vertical pivot NL so that he lift MIL may engage the lever H2 of a note a semitone above or below the note which is normally operated by the key. Each black key SK is similarly associated with a lift MIS and a control lever M so as to engage an upper lever H1. The tail ends of the control levers are coupled by tie rods KR (Fig. 2) to levers LV in the control mechanism, which is operated by the handle HA. Corresponding notes in different octaves are coupled together by ties (not shown). The auxiliary keys are normally inoperative as the associated lifts MIS engage stops HL in lieu of levers H1. When the auxiliary control lever is adjusted to either side, however, the key operates the adjacent natural E or F, B or C. The lower levers H2 on either side of a stop HL are provided with wide ends HT so that the B and E lifts may be able to engage the C and F levers H2 and vice versa in spite of the intervening stops HL. Control mechanism, Figs. 2, 5, 17, 19, 25 and 30. Locks LO carrying the levers LV, to which the coupling rods KR are connected at LU, are arranged in two series of seven (Fig. 30). The locks are held in their normal positions by spring catches SP (Fig. 17). Turnkeys TIC (Fig. 19) carrying keys KE can together be moved along and rotated about their axes by means of the handle HA, which is guided by a slotted plate 7 (Fig. 5). As the handle is advanced along the slot 75, the keys KE displace the catches SP .and unlock the levers LV encountered in the forward movement. When the handle is turned to one side, the unlocked levers are displaced to operate the control levers. The levers LV of the left-hand series of locks (Fig. 30) are tied by rods KR to the control levers of the auxiliary keys relating to E, F and to B, C, and to the black keys F#, C#, G#, D# and A#. The inverted levers of the right-hand series are tied to the control levers L of the white keys F, C, G, D, A, E and B. The righthand turnkey TK (Fig. 19) operating the control lever for the white keys carries a single long key KE which can operate seven locks together. The left-hand turnkey operating the control levers for the black notes carries one long key which can operate nine locks together and a short key which can operate only two locks together. The locks corresponding to E, F and B, C (Fig. 25) can be turned only by the short key. As the turnkeys are advanced two positions into the locks (Figs. 19, 30), the locks are unaffected as locks E, F and B, C are not released by the long key. With subsequent advances and turning of the handle to the right, F will be sharpened and F# flattened, C sharpened and C# flattened &c. The auxiliary key E, F is brought into use for the key of six sharps when the short key enters the first lock, and the auxiliary key B, C is also brought into use for seven sharps. Turning the handle HA to the left and further advances of the turnkeys provide adjustments in the range seven flats to one flat (Fig. 5). A bar HS (Fig. 16) may be turned about a hinge Z by means of a pedal so as to lift all the levers H1, H2 clear of the lifts MIS, MIL and to avoid fouling whilst the control is adjusted.
    • 2. 发明专利
    • Improvements in and relating to weighing scales
    • GB604201A
    • 1948-06-30
    • GB762245
    • 1946-03-22
    • GEORGE EDWARD WRIGHT
    • G01G3/08
    • 604,201. Spring balances. WRIGHT, G. E. March 22, 1946, No. 7622/45. [Class 143] In a weighing scale, particularly for domestic and cookery use, having at least two flat springs each anchored at one end and rigidly interconnected at their opposite ends by a member carrying the load, a further flat spring is combined with said member, the other end of which spring engages an abutment after a predetermined flexing of the other springs whereby a greater movement is obtained for light loads than for heavier ones. A back plate 1 carries blocks 2, 3 to which are anchored the parallel springs 4, 5. Their free ends carry blocks 6, 7 connected by a rigid member 8 comprising the bent over edge of a triangular member 9 which has an upwardly turned flange 11 over which a scale pan can engage. Alternatively, the member 9 may extend above the casing. A pointer 12 and scale 13 indicate the extent of flexing of springs 4, 5. The pointer pivots on a member 14, adjustable by a screw 15 for zeroising, and has an arm 17 engaging arm 18 on the block 7. Zeroising may, alternatively, be effected by adjustment of the flexing of one of the springs. A pin and slot 25, 26 limit movement of the member 9. A third spring 30, anchored to block 6, after a predetermined flexing of springs 4, 5, engages an abutment 31. Thus, the scale may register ounces up to one pound from the zero 32 to the mid point 33, and from 1 to 4 pounds over the latter half.
    • 4. 发明专利
    • Improvements in or relating to television transmission systems
    • GB393960A
    • 1933-06-09
    • GB3415131
    • 1931-12-09
    • JOHN CHARLES WILSONERNEST EDWARD WRIGHTBAIRD TELEVISION LTD
    • H04N7/12
    • 393,960. Television. WILSON, J. C., WRIGHT, E. E., and BAIRD TELEVISION, .Ltd., 133, Long Acre, London. Dec. 9, 1931.. No. 34151. [Class 40 (iii).] In a television transmission system the frequency spectrum of the image currents is divided into a number of bands, and components lying in frequency bands except the lowest after being reduced and inverted in frequency are trans- .mitted over channels allocated to the various bands and at the receiving end are restored to their original frequency values. The frequencies forming the limits of bands are the " elided " frequencies of the scanning system which are defined as the number of times (and multiples of that number) an aperture covers its own length in the direction of traversal in one second. On the assumption of elided frequencies of 10, 20, 30 kilocylces and a number of channels passing frequencies up to 10 kilocycles, the picture signal components lying in the lowest band are transmitted directly over a channel 1 to the receiving end. The image signals are also applied to band-pass filters 15, 16 which select components in the ranges 10-20 and 20-30 kilocycles respectively, and the components so filtered are applied to modulators 6, 7 to modulate carrier currents of frequencies 20, 30 kilocycles respectively. The lower side bands which are inverted with respect to the frequency of the original signal components solely pass over the low-pass channels 2, 3. At the receiving end the signals from the lines 2, 3 are applied to modulators 9, 10 modulating frequencies of 20, 30 kilocycles respectively. The modulated currents are passed to band-pass filters 11, 12 which pass components in the bands 10-20, 20-30 kilocycles respectively proportional to the components selected by the band-pass filters 15, 16. The restored image components are then applied in combination with the components passing over the channel 1 to an amplifier 8 and a glow-discharge lamp 14. The theory of the system is discussed mathematically in the Specification. Specification 381,254 is referred to.
    • 5. 发明专利
    • Improvements in and relating to air speed and other indicators
    • GB556564A
    • 1943-10-11
    • GB916442
    • 1942-07-02
    • MECHANISM LTDGEORGE EDWARD WRIGHT
    • G01P5/16
    • 556,564. Air speed indicators. MECHANISM Ltd., and WRIGHT, G. E. July 2, 1942, No 9164. [Class 106 (ii)] A pressure responsive indicating device such as an air speed indicator has two concentrically mounted indicators arranged to traverse a common scale plate bearing two distinct scales, each indicator being independently actuated by a common fluid pressure. One of the indicators has a limited range of operation while the other responds only at higher pressure. In the form shown in Figs. and 2 pressure from a Pitot tube or similar device is led to a cylindrical chamber 1 with metal bellows 4, 5 mounted on the end walls. The more sensitive of the bellows 5 has its movement limited by a hollow sleeve 6 through which passes a rod 8 attached at its outer end to an adjustable radius arm 9 on a shaft 10. The shaft 10 carries an arm 11 with a rack 12 engaging a pinion 20 on a spindle 21 to which a pointer 25 is attached. The less sensitive bellows 4 has a rod 7 bearing on or attached to a leaf spring 14 which contacts with a cam surface 15 and a hook shaped arm 16 on a shaft 17. The shaft 17 has an arm 18 with a rack 19 engaging a pinion 22 on a hollow spindle 23 surrounding the spindle 21 and carrying a pointer 26. The pointer 25 traverses a dial 24, Fig. 3, with an outer scale representing tens of miles per hour and the pointer 26 cooperates with an inner scale calibrated in hundreds of miles per hour. A shield or plate 27, 28 is provided to mask whichever pointer is not operative.
    • 10. 发明专利
    • Improvements in or relating to electric circuits incorporating magnetic amplifiers
    • GB775142A
    • 1957-05-22
    • GB222955
    • 1955-01-25
    • GEN ELECTRIC CO LTDRONALD EDWARD WRIGHT
    • H03F9/04H03F9/06
    • 775,142. Magnetic amplifiers. GENERAL ELECTRIC CO., Ltd., and WRIGHT, R. E. Jan. 18, 1956 [Jan. 25, 1955], No. 2229/55. Class 40 (4). A pair of "high speed" or " resetting" magnetic amplifiers 1, 2 of the type in which alternating sources 10, 13, 17, 19 cyclically apply demagnetizing and magnetizing currents over rectifiers 9, 16, 18 to control and output windings 4, 7 and 3, 6 respectively during different time periods, are connected in cascade in association with P-N-P junction transistors 11, 14 which directly control the demagnetizing currents over the base and collector electrodes in accordance with the emitter-base current. As shown, positive control signals are applied to terminal 12 and a directly proportional and amplified output is obtained at terminals 20 after a delay time of one and a half cycles of alternating voltage. A resistor 15 is included in the output circuit of amplifier 1 to limit the current through winding 3 and the transistor 14 when the core 5 becomes saturated. It is stated that the four alternating sources, which are the same as to frequency, phase and amplitude, may be taken from separate secondary windings on a single transformer, and that the emitter-base connections of the transistors may be reversed. The arrangement is also stated to be applicable to high-speed magnetic amplifiers of the fullwave type.