US1415256A

US1415256A - Chime-striking action

Info

Publication number: US1415256A
Application number: US315801A
Authority: US
Inventors: Leonard D Morris
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-08-07
Filing date: 1919-08-07
Publication date: 1922-05-09
Anticipated expiration: 1939-05-09

Description

l.. D. MORRIS. CHIME STHIKING ACTION.

APPLICATION FILED Au,e.7. I9I9.

Emma y 9, w22.

2 SHEETS-SHEET l mmf L. D. MOHM.

- CHIME STRIKING ACTION.

APPucATloN FILED AUGJ. 19|9.

Lmee, l y Patented Maw, 1922.

. 2 SHEETS-SHEET Z.

unirse s'mfiesI ArNT orifice.

LEONARD D. Moms, or CHICAGO, IL'LINoIs.

CHIMEHSTRIKING ACTION.

`. lTo all whom t may concemi vention, it is'to be Chicago,

Another object Be' it known that I, LEONARD D. MORRIS, a citizen of the United States, residing at in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Chime-Striking Ac# tions, of which the following is a specification. i

My 4invention relates to chime striking actions and has for its primary object the provision of an improved device for mechanically sounding resonant objects, such as chimes, bells and the like, 'and to produce a strong and unobstructedvibration of the same. A further object is tolprovide an action by which such vibration may be damped. lies in the provision of a novel form of electrically operated action whereby a hammer driven against the chime,

from, to leave the chime free to vibrate.

Other objects and advantages of the invention will appear from the'following description, taken in conjunction with the accompanying drawings which form a part of this specilication and illustrate the preferred embodiment of the invention.

In the drawings:

Fig. 1 is aside elevation of the invention, certain` stationary frame members being shown in section.

Fig. 2 is a similar view illustrating in full and dotted lines respectively, positions of the'paIUS.

Fig. 3 is a section on line 3 3 of Fig. 2.

Fig. 4 is a fragmentary front elevation of a set of chimes, illustrating two positions of the chime damper of the present invention.

The main support for this invention comprises a lower frame member 10, an upper front member 11, and an upper rear member 12, as well as a bar13 intermediate these upper and lower members and against which the hammer lever rests.

The

chimes

14, 15 and 16 are suspended a cord 17 which passes over carried by a late 19, the latter being screwed to the front iiame member 11. This form of chime mounting is not claimed herein, as it forms the subject-matter ofi my co-pendiiig application Serial No. 315,802, filed August 7, 1919. While tubular chimes are herein illustrated and described as the sound producing elements to bevibrated by this inunderstood as being with- Specicaton of Letters Patent.

two different buttons 18 other resonant objects adapted for vibration by a haminer-may be substituted therefor. The invention cont'emplatesa separate ac- Patented May 9,1922. Application mea August 7, 1919. serial No. 315,801.

' inthe purview of the invention that many tion for sounding and damp-ing each chime. l

Secured to' and projecting from the` rear face ofthe lower frame member 10, is a bracket 21 from which depends an electromagnet generally indicated at 22 and havingthe axes of its two core ends vertically positioned, the cores of magnets22 being indicated at 23. The axes of the cores 23 define a -vertical` planeindicatedby the line' 24 `in Figures 1 and 2." "Hinged as at 25 to 'bracket 21, is a'pivot. plate 26, carrying an' .oppositely extending pivot pin 27 soldered orotherwise secured'to said plate and having its outer end adjustably spaced from the free end of' bracket 2l by means of a spacing screw 28 and a lock nut 29 carried thereby.

are respectively pivoted on the pivot pin-27 and extend ufpwardly therefrom and are inbent toward each other to carry a hammer a'rm-V 33 which is rigidly secured to them by rivets 34. The pivot pin 27 has its axis positioned horizontally Y-in the plane vindicated at 26 and above the cores 23 of the magnet. The armature 31 is thus mounted to swing across the-lowerends of the cores 23. By means of screws 35 va metal hammer rod 36 1s attached tothe wooden hammer arm 33 and, at its uppervend, carries a 'hammer 37 employed in sounding the chime 15 'for eX- ample. In the position of rest ofthe ham- .An armature 31 is secured in the lower end of an armature yoke 32, the sides-30 of which mer and armature the upper end of the haml' the best sounds from the chime the hammer 37 is so positioned as to strike the chime at its upper end and above the level at which cord 17 passes through the chime. A post 42 extends upwardly'from the upper rear frame member 12 and carries a pivot 43 .upon which is mounted the rear end of a damper arm 44. The forward end of the damper armis formed with a downwardly flaring aperture 45 through which passes a damper rod 46, ,the` upper end or the latter being threaded retaining nuts'47 and 48 by means of which the damper rod is adjustablyretained in position in the damper arm and at the samev time is allowed a slight amount of angular 'for reception of upper and lower play with respect tothe damper arm. Preferably the damper rod 46 passes through a guide bearing 49 comprising a horizontally outbent flange formed on the plate 19. The damper rod carries on its lower end a damper 51 of any suitable fo-rm by -means of which the hammer induced-vibration of the chime is damped. A link 52 forms the operating connection between the upper end of hammer arm 33 and the medial portion of damper arm 44, the, link being pivoted on horizontal axes in each of these members.

In the position of rest of the action, shown in Fig. 1, the hammer mounting, comprising yoke 30, hammer wrm 33, 'hammer rod 36, and the armature 31, is obliquely positloned so that its upper" portion above pivots 27 stands rearwardly of the Vertical plane 24 while its lower portion, including armature 31, stands forwardly of the lower ends of the magnet cores 23. Upon energlzatlon of the electro-magnet, the cores 2 3 exert a sudden and violent pull onarmature 31 thereby dra-wing the armature backward and swinging the hammer and its whole mounting 1n a counter-clockwise direction as the parts are viewed in Figs. 1 and 2. rIhe axis of the hammer mounting is indicated b-y a line 53 in Fig. 1. 'Ihe' sudden magneticallyv induced rearward movement of armature 31 sets up sufficient momentum in the whole hammer mounting and the hammer to cause the .armature t0 swin veven across the lines of magnetic force, to

across the cores 23 and,

carry .the hammer and mounting to the opl f positely inclined dottedrline posltion of Fig.

2, in which position the hammer strikes chimel 15. The continued energlzation of Y'the magnet however. draws the armature from the rear end' of its. path of movement as indicated in dotted lines in Fig. 2 to a position directly below and centrally of the magnet cores 23, thereby withdrawing hammer, 37 instantly from contact w'ith the chime andholding i-t firmly in 'spaced relation to the chime as indicated in'full lines in Fig. 2. In this latter position ofthe parts the axis 53 of the hammer mounting coinL plane 24 defined by the axes wise movement of the 'hammer mounting throws the upper end4 of the hammer yfor-y ward and upward thereby conveying an up# .with which the hammer 37 the hammer mounting, the hammer and its mounting are returned to the position of rest offFig. 1 upon de-energization of the magnet. As the hammer returns to. this position the damper 51 is lowered upon the upper end of the chime thus arresting the vil'iration of the latter. 0bviously, the force is projected against the chime may be varied by adjust ment of the pivot plate 26 to bring armature 31, during its arcuate movement, closer to the cores 23 0r to position it farther from them. Should it be desired 'to employ a magnet relatively extremely powerful with respect to the weight of hammer and hammer mounting which it is to actuate, Icon template the use of spring steel in hammer rod 36 so that, if the power of the magnet is so great as 'to prevent the momentum of the parts from swinging armature 31 rearwardly of a central position below cores 23, the yforward momentum of the hammer 37 will bend the resilient spring arm 36 causing it to travel forward to the dotted line position of Fig. 2 and strike the chime while the remainder of the hammer mounting occupies rigidly the vertical position shown in full lines in Fig. 2.

I claim:

1. In a chime striking action, the combination with a suitable frame, of a chime vertically suspended therefrom, an electro-magnet carried by the frame with the axis of its core parallel with that of the chime, a substantially straight hammer mounting pivoted by its medial portion on a horizontal axis near the upper end of the magnet core, a hammer carried on the upper end of said mounting, an armature fixed on the lower end thereof, a stationary cushion stop limiting movement of the hammer from the chime, and a spring normally holding said mountingagainst the cushion stop;

*2.,v In a chime striking action, the combination offa vertically disposed electro-magnet-'3"r ayoke pivoted above said magnet and provided at its lower' end with an armature adapted-to be actuated by said magnet, a hammer carried by said yoke above the magnet, a chime ydisposed in the path of move- 'ment-of. said hammer, anhorizontally disposedarm pivotally 4mounted labove said hammer, a. damper suspended .from said arm in' alignment `with 'said chime, .a link pivotward thrust through link 52 to the damper arm 44, with the result of elevatingthe: damper 51 to a position spaced above the 'allycnnectingsaidzarmand said hammer 120 .support providing in conjunction with said support a toggle adapted upon movement of upper end of the chime as shownini-"Fi" .12.

the chime is free to vibratelunder the 'p silxiigle tolie *y y I "hime spring 54 compressed betweenlthe loweryh frame member 1,0 .andthe upprlportionof sa1dhamme`rtoward said chimey to lift said arm whereby saiddampe'r is lifted outl of engajigementl withisaid chime, and means for restorin said' 'hammer to jinoperative posing'agi'ng said damper with said 3.; action, the combinationgofa ch1me,' a n'armppivoted above said lee chime, a damper suspended from said arm in position to engage said-chime, toggle mechanism for actuatlng said arm comprisinga pivotally mounted hammer support and a link pivoted thereto and to said arm, a hammer carried by said support, means for swinging said supportv so asv to straighten said toggle and thereby lift said damper from said chime, and means acting on said toggle mechanism to restore said hammer to inoperative position and positively depress said damper into engagement with said chime. 4 i y 4. In a chime striking action, the combination of a chime, a pivotally mounted arm, a damper adjustably suspended from the free end of said arm in verticaly alignment With said chime, a hammer support pivoted upon a horizontal axis, a hammer carried thereby, means for swinging said support across a vertical plane passing through the pivot of said support, a positive toggle link connection between said arm' and said Isupport for lifting .said damper carrying arm upon striking movement of said hammer,

5. In a chime striking action, the combi- 4 nation of a chime, a hammer therefor, a support for said hammer mounted to oscillate upon a horizontal axis, means'for normally maintaining said support in an inclined position With respect to a vertical plane through said axis, a damper carrying arm fulcrumed at one end, a damper adjustably carried by the free end of said arm, and a link conne-ction between said arm and said hammer support for positively lifting said damper'upon movement of said hammer toward the chime and for positively depressing said damper