US1286059A - Organ-action. - Google Patents

Description

Ox?. n of@ l.. D. MORRIS.

ORGAN ACTION.

APPLICATION HLEDJUNEB.19|8.

. Patented Nov. 26, 1918.-

LEONARD D. Monnrs, orl CHICAGO, ILLINQs.

ORGAN-ACTION.

Specification of Letters Patent.

Patented Nov. .26, 1918.

Application led June 8, 1918. Serial No. 238,806.

To all whom t 'may concern: l

Be it known that I, LEONARD D. Morris,

la citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented certain newand useful Improvements in Organ-Actions, of'

which the following is a specification.

My invention relates to organ actions and has for its pri-mary object t e provision of a unitary'structure of improved type wherein the 'valve' is'carried as a part of the u nit as is also the valve seat, and wherein both are operatively related to each other before the action is placed in the organ where it is toh be used.

A second object is the provision with a unitary organ action of the type just described ofV improved means whereby the actionfmay be accurately located withgreat facility in the organ in proper `relation to the pipe which it is to control.

A third object is the provision of an improved form of organ actions wherein the force necessary to unseat the valve from its closed position is reduced to a minimum and whereby maximum speed in the action is attained.

Other objects and advantages of my, invention will appear from the following description, taken in conjunction with the accompanying drawings which form a part of thisspeciication and illustrate the pref ferred embodiment of the invention.

In the drawings:

Figure 1 is a side elevation of an organ action embodying the present invention, showing the same partially sectioned approximately on the vertical center of the valve passageway and operatively related to its pipe and the wind chest supporting and supplying air to the pipe.

Fig.`2 is a perspective view of my improved action.

Fig. 3 is a fragmentary'side elevation of a modified construction illustrating one way of providing a valve seat of large diameter.

Fig. 4 is a top plan view of Fig. 3.`

Reference numeral 10 indicates generally the frame of my invention comprising a strip of iron bent to a U shape to form an upright portion 11, a top 12, and a bottom 13. As described in my co-pending application Serial No. 191,855 I secure an electromagnet 14 to the bottom 13, and, in operative relation thereto, pivot an armature 15 toa leaf spring 16 adjustable by means of a set screw 17 toward or from the magnet, the armature being normally upheld in the full line position shown by a spring 1S conipressed between the head 19 ,of a machine screw 21 threaded into a boss 22 formed on the-top 12 and the lower surface of the armature through which the screw 21 passes. The present construction, however, diers from my co-pending applications 191,274 and 191,855 in that the screw 21 herein is threaded-into a portion of frame 10 and thus adjustably carried thereby, instead of passing loosely through a hole formed in the frame and being threaded into the wood of the windchest 23. By this construction I make the screw 21 a unitary part of the organ action.

The wind chest 23 is provided with an aperture 24 of standard diameter foi` given kinds of pipes, cylindrical in its lower end where it intersects the lower surface of the wood, and contracted at its upper end to form a rest 27 for an organ pipe 26 which has its lower end bearing on the rest 27 and seated in a recess 25 formed in the wind chest just above the rest. Aperture 24 and recess 25 are, of course, in communication with each other for passage of air from the wind chest into the lower end of pipe 26. Heretofore it has been common practice to place the valve for an organ pipe in flat contact with the lower iat surface of the windchest so that, about the aperture 24, there was a large annular area of fiat surface contact between the -valve and the windchest wall or a flat surfaced valve seat secured to the windchest. Of course, there being air under greater than atmospheric pressure within the windchest, the valve must always eXert suflicient force to overcome the wind pressure exerted within the windchest against the valve over an area of valve `equal to the cross-sectional area of theraperture24. But heretofore organ actions have, because of the above mentioned fiat surface contact, had to exert an additional force to open the valve; namely, that force necessary to quickly separate the valve and windc-hest surfaces in flat contact over an area annular in contour-and equaling in extent the difference between the whole area of the fiat top of the valve and the cross-sectional area of aperture 24. As a means of removing the necessity for exertion of this additional force by the action, I provide a circular flange 28 about the air passage 29 vof the top .12v of the frame, the outer vor loweredge of this ange being sharpened to formja valveseat which contacts with the vvalve 31 iny practically, a

circular line. Preferably t ne" edge of the valve seat is rounded fvtndtlie;n valve surface engaging it formed of soft, toughifleather t0 prevent cutting of the valve under constant use. The valve'3'1 is carried on the armature 15 and drawn from its seat against the pressure in the windchest by the energization of magnet 14' until the down-turned free end 32 of the armaturestrikes and is stopped by a layerof-felt 33 held on the tog of the magnet. .Because of the'. negligi le area of contact between valve `31 and seat 28 the. opening of the valve is facili.

tated. l

As a means of instantly and simply locating the organ action, with its valve vand valve seat, in accurate operative relation to the pipe which it is to'control, I form about the passageway 29 an upstanding -guide-rib 34; of, an external diameter litting snugly in air tight joint within aperture 24 in the cylindrical portion of the latter; the internal diameter of the guidelet rib being suiiciently large to provide ample iow of air for the proper sounding of pipe 26. Thus the complete organ action may,

as a unit, belocated in proper position by insertion of guide-rib 34 in aperture 24; and the setting of wood screws 35 and 36 to hold it in place. 'i

I contemplate the manufacture of my improved organ actions as an independent industry in the art .of organ building, and

top 12 of frame 10.

'into the air passageway 29 punched in the In Figs. 3 and 4 is illustrated a modified I form of action adapted to supplying large quantities of air from the windchest to the largervpipes of an organ for soundingthe large pipes of the pedal stops. These ypipes require ai'r passages of great diameter. To provide such passages I shorten the top 12 of frame l0 and upon its upper surface rivet, as at 37, a--plate 38 of metal having an outer or forward end of larger diameter than frame 10 to accommodate the formation through it of an air passageway 29 of,

the required size. About the edge of this large passageway I position the annular valve seat 28 and ide-rib 31 asheretofore described.' By this construction a lighter gage of metal may be used for plate 38 than for framelvO.

insecte.

` while I have' illustrated and described the preferred embodiment of my.- invention I contemplate the use of any and all modifications thereof that fall-within the purview of the appended claims. .I claim: v

1. Au organ action comprising, aval-ve, a

valve seat, valve actuating elements, andja frame -jiudependent of the windchest of-an organ on which all of said parts Vare carj-g ried. 2. An organ able with respect thereto, valve operating elements adjustable to vary the force"A with which thervalve is actuated, and a frame,- independent of the windchest of an organ on which all of said parts are carried. 3. A unitary, electro-magnetic organ action comprising, a frame independent of and attachable to the windchest of an organ, a valve seat carried thereby, an electro-magnet fixed to the" frame, an armature pivotally action comprising, a valve. seata valve operatively relatedand adjust-- supported on the frame, traversing an end of the magnet and adjustable withres'pect thereto, a valve mounted on the armature and operatively related to said valve seat,

and means adjustably carried by the frame for normally' holding the valve againstI its seat. 4. A unitary organ action comprising, a frame independent of theswindchestof an organ,'a valve seat carried thereby, an electro-magnet xed to the frame, an armature for-the magnet movably'supported inthe frame, a valve mounted on the armature and operatively relatedto the `,valve seat, and means carried bythe frame for normally holding the armature and valve in a glven position relative to said magnet and valve seat.

'5. In an organ action, thecornbination with a frame, of a circular guiding rib fixed to the frame and projectingoutwardly thereof.

6. ln an organ action, theA combination with a frame independent of the windchest 'of an organ, and a valve seat, a valve, and

valve operating elements carried by the frame, of means forlocating the action in a windchest in alinement with the air o utlet aperture which itis to control, corn rising an annular guide-rib concentrici? f ysaid valve seat projecting outwardly/'fof the frame in rigid relation thereto and fitting snugly within the inner en d of said aperture.

7. A unitary organ' action comprising, a vframe independent of the windchest of an organ, a valve seat carried thereby, an electro-magnetA fixed to the frame, an armaturefor the magnet movably supported in the frame, a valve mounted on the armature and operatively related to the valve seat, means carried by the frame for normally holdingAl the valve in a given position relative to its seat, and an annular rib concentrlc with said ice valve seat projecting outwardly of the an airv passageway, lof an lannular flangeabout the passageway Xed to the frame and projecting therefrom,`the free edge of the flange lying in a plane at' right angles to the axis ofthe passageway and remote from y the frame, and a ilat surfaced XValve for .con

tact with theiange edge to close the passageway, said valve being piVoted-to'the lframe on an axis at right angles to that of said passageway. l

9. As an article of manufacture, ainetal ,"strip -forming an organ action frame independent of and attachable to the windchest of an organ and apertured to provide an air l passageway, and a metal cylinder Xed to the strip within said aperture and projecting from both sides of the strip.

j l0. A frame piece for organ actions cornprising, a fiat strip independent off and attachable to the windcl'iest of an organ and apertured to provide an air passageway, a

cylindrical valve seat surrounding the aperf ture and projecting inwardly of the strip, and a cylindrical guide ri'b concentric with said seat, surroundlng the aperture and projecting outwardly of the strip.

l1. In an organ action, the combination with a frame independent of the windchest of an organ, of a valve seat, and an electroniagnet both fixed upon the frame, an armature for the electro-magnet, a valve flXedly carried thereby, anl adjustable device carried by the frame for mounting' the armature in operative position inthe ranie whereby the distance of the armature from the core of the magnet may be varied, and a spring adjustably supported' from the frame and opposing the force exertedy by the magnet on the armature.

LEONARD D. MORRIS.

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