US1729319A - Damper-control-lock mechanism - Google Patents

Description

Sept. 24, 1929. E. o. YOUNG 1,729,319

DAMPERbONTROL LOCK MECHANISM Filed 001;. 1928 ll/l/l/TTII anoentoz EMIL 0' YOUNG Y attoznu Patented Sept. 24, 1929 EMIL O. YOUNG, OF CLEVELAND, OHIO DAMPER-CONTROL-LOCK MECHANISM Application filed October 8, 1928.

p This invention relates to damper control lock mechanism used both for regulating the position of a damper in an air flue and to 1ndicate upon the inner surface of the wall of a room, what such position is.

within such wall.

plied to rotate said axis.

It is a special advantage of my improved structure, that the rotation of such axis will not only rotate the damper, but will indicate upon the outer surface of the control mechanism, the are through which the damper has been turned. A further object of my invention is the provision of an indicator to be applied to the surface of a room and having a rotatable central axis, and means for locking the axis in position.

A further object of my damper control mechanism lies in its provision of two discs one rotating Within the other, but the outer disc being stationary and provided with an arc-shaped slot'through which the position of the inner rotatable disc ma be seen. To render such operation more e ieient the inner disc has a mark or indentation thereon travelling in the path of the said slot, and the outer disc has a suitable scale marked thereon to indicate the relative position of the two discs, the latter having rotatable means relatively movable by engagement of a suitable tool upon the axial portion of one of them to effect the desired adjustment.

With these and other objects in view later to be more fully set forth, my invention consists in the described structure recited in the appended claims and illustrated in the accompanying drawings, in which Figure 1 is a perspective view of a flue in the wall of a room broken away to show a damper therein and a control device shown diagrammatically upon the surface of the wall;

Serial No. 311,235.

Figure 2 is a plan view of my control lock mechanism;

Figure 3 is a central vertical section taken on the plane indicated by the line 33 of Fig. 2, and Figure 4 is a perspective detail of a lock nut used in my device.

My control mechanism comprises a rim l0 adapted to be applied to the wall of a room or upon the face of a duct, as the case may be, an apertured metal plate 11, a central sleeve member 12 mounted in said aperture, and an inner disc 13 mounted upon said sleeve.

The peripheral edge of the rim is formed as a head 14 to engage the wall, the central portion of the plate 11 being raised inwardly upon the rim thereby spacing the center plate from the rim. This rim 10 is provided with small apertures 16 for suitable fastenings to secure the parts 10 and 11 rigidly to the wall.

The sleeve 12 is provided with a peripheral flange 17 at its inner end designed to be positioned within the raised portion 15 of plate 11, the disc 13 having an aperture 18,receiving therein the sleeve and snugly fitting against the flange 17. The aperture 19 of the plate 11 receives the sleeve 12 rotatably therein by a loose fit, but the disc 13 is secured tightly upon the sleeve, so that the two will always rotate together. The outer end 20 of the sleeve is smooth and is adapted to receive thereon a closed cap 21 fitting neatly over the end of the sleeve. Suitable means is provided for detachably locking the cap and sleevetogether, which may be a pin 22 adapted to be inserted through registering apertures 23 in the parts. Thus, the sleeve 12 is mounted solely upon the plate '11 and is rotatable therein, while the disc 13 is carried by the sleeve just forward of the flange 17 and the disc and sleeve together rotate relative to the plate 11, the flange 17 and disc 13 being positioned in the space between the plate 11 and the plane of the rim 10.

Between the aperture 19 and the end portion 20, the sleeve 12 is provided with an outer and enlarged threaded surface 24 adapted to receive thereon the clamping nut 25. The latter is an integral nut comprising an inner circular flange 26 and an outer polygonal portion 27 serving to receive thereon an actuating tool, such as a wrench, for screwing the nut tightly against the plate 11 which is in turn, pressed against the inner disc 13, which is crowded against the flange 17.

The disc 13 is secured non-rotatably upon the sleeve 12 by any conventional means, as by insertion of a pin 28 through the flange 17 and into the sleeve. Thereby, the tightening of the nut 25 will hold the'disc 13 relative to plate 11.

The flat portion of the plate 11 within the annular raised portion 15, is provided with an arc-shaped slot 29 just bordering the flat portion and adjacent the raised portion, such slot ordinarily extending for about 180, through which the outer surface of the disc 13 may be seen, and the movement of the latter being clearly indicated by the provision of a mark or indentation 3O travelling in the slot, which plate has a suitable scale 31 marked thereon to show the relative position of the two parts 11 and 13. Since the plate 11 is fixedly secured to the wall of the room or flue, the rotation of the sleeve 12 will be indicated by the movement of the disc 13 carried thereon. The actuation of the sleeve is effected by application of a suitable tool to the cap 21, by any suitable means as by the provision of holes 32 in the cap adapted to receive corresponding pins upon a bar of some sort which by rotation will rotate the cap and sleeve.

Anyconventional tool may be used for the purpose, the same not being described in detail since it is not claimed in this case. It is therefore clear that rotation of the nut 25 will tighten the parts 12 and 13 in any desired position relative to the plate 11, while rotation of the cap 21 will positively rotate the disc 13 and its marl: 30 to the desired position. The sleeve 12 has a non-cylindrical, axial opening which may receive therein end of the pivotal bar carrying the part to be rotated within the flue, which We have shown in this case as a damper 33 mounted upon a bar 34. It will thus be seen'that, since the plate 11 is mounted upon the rim 10 which in turn is mounted upon a supporting surface, the rim 10 carries the entire control mechanism, and when removed from such support surface, will readily detach the sleeve 12 from the end of the bar 34 whose rotation is to be adjusted. When theparts 10 and 11 are removed from said surface, the entire indicating mechanism as shown in Fig. 2, is removed with them, no part of such mechanism being indicated on the surface itself.

The end of the bar 3% will have a form corresponding to the opening 35, this being described to merely illustrate a means of effecting detachable connection between the bar and sleeve, but for which other means are recognized. and for which no patentability is claimed in this case. The control mechanism of this application is designated by numeral 5 as a whole.

While the lock mechanism 5 is illustrated for convenience of description as mounted upon the surface of a wall for actuating the damper of a fine and indicating in such mechanism what the position of the damper is, it is to be understood that the mechanism is equally applicable for mounting upon a duct for controlling a damper within the same. The structure of the damper or line is not limited to any particular form, as this application is designed to claim the control mechanism, and not a particular damper, its connection with the lock mechanism being stated generally only.

In operation, the pivotal bar of the damper being assumed to extend through the adjacent wall where the lock mechanism is to be mounted, the circular plate 11 with its peripheral rim will be secured to the wall in axial alinement with such bar,the disc 13mounted upon the sleeve and the latter positioned in the aperture 19 before the plate 11 is secured to the wall. The end of the said bar will be inserted in the opening 35 of the sleeve so that these parts will rotate together. The nut2l is then screwed upon the threaded portion24, and the cap 21 locked in position upon the end of the sleeve as by the pin 22. It will now be seen that positive rotation of the cap will turn the damper on its pivot in the flue, and that turning the nut 25 will lock or unlock the parts 12 and 13 in a given position. Before the nut is tightened on the sleeve, the latter will be rotated by a tool applied'to the openings 32 of the cap, and as the disc 13 revolves,the pin 30 thereon will'indicate upon the scale 31 theposition-of the disc and therefore of the damperin the pipe. WVhile so held in position, a wrench applied'to the polygonal portion 27 of the nut will tighten the 'disc against the stationary plate 11. This will tighten the disc and plate against the 'flan e 17. A reverse operation will actuate t 1e damper as desired;

Having thus described my invention, "I claim:

1. A control. 'i'nechanism for operating a damper which is pivoted with n a flueupona bar extending out through the wall of a room or duct, the dampersecured to the bar to be actuated rota ably thereby, said control mechanism comp .nga centre.lly-apertured plate for mounting on a wal sur faceby rim fasteners, a sleeve mounted rotata'bly in said aperture and carried bvsalid plate, and having' a peripheral flan; on its inner endyand an extei'nally threaded portion, said sleeve adapted for uonrotatable'connection with the outer end of said bar, flanged cap detachably secured upon theouterend of saidslecve and having holes in the outer SHId QCB Of bllG cap for receiving pins'on an actuating tool for rotating the sleeve and bar, and means including a clamping nut mounted on the threaded sleeve outside the said plate for indicating on said plate, the rotatable position of the damper in the flue and locking the parts in position.

2. A control mechanism comprising a circular plate having a rim for attachment to a flat surface and an apertured central portion spaced from the plane of said rim, an externally-threaded sleeve rotatable within said aperture and a disc fixedly secured upon the sleeve for position in contact with the inner surface of the said central portion, means connecting the disc and central portion to indicate the relative position of the sleeve in the aperture, a locking nut mounted upon said sleeve outside of said central portion for clamping the central portion and disc together, and detachable means on the outer end of the sleeve for rotating the latter and the disc relative to said apertured plate.

3. A control mechanism comprising a circular plate having a rim for attachment to a flat surface and an apertured central portion raised above the level of said rim, an externally-threaded sleeve having a peripheral flange on its inner end and rotatably mounted Within said aperture and having a disc secured non-rotatably thereupon for position in contact with the inner surface of the said central portion, the latter having an arc-shaped slot through which may be seen a mark near the periphery of said disc to indicate the relative position of the sleeve in the aperture, a locking nut rotatably mounted upon the sleeve outside of the said plate for clamping the disc and said central portion together, against the said inner flange, and detachable means on the outer end of the sleeve for rotating the latter.

4. A control mechanism comprising a circular plate having a rim for attachment to a flat surface and an apertured central portion raised above the level of said rim, an externally-threaded sleeve rotatable within said aperture and a disc fixedly secured upon the sleeve for position in contact with the inner surface of the said central portion, means connecting the disc and central portion to indicate the relative rotatable position of the sleeve in the aperture, a locking nut mounted upon said sleeve outside of the said plate for clam ing the said central portion and disc toget ier, against the said inner flange, and a cap having a peripheral flange for detachably engaging the outer end of the sleeve, there being a transverse pin for insertion in registering apertures in the flange and sleeve, and the outer surface of the cap having holes to receive pins on an actuating tool for rotating the sleeve and a member therein to be adjusted relative to the circular plate.

5. A control mechanism for operating the damper which is pivoted Within a flue upon a bar extending out through the wall of a room or duct, comprising a sleeve having an axial opening for detachably connecting the same with the outer end of said bar and having an externally-threaded portion, an inner peripheral flange and a smooth outer end, a flanged cap detachably secured upon said smooth outer end and having holes in the outer surface for receiving pins on an actuating tool for rotating the sleeve and bar, a supporting plate for mounting on a wall surface, and centrally apertured to rotatably mount said sleeve therein, means including a disc mounted on said sleeve for indicating outside said plate the rotatable position of the sleeve and of the damper in the flue, and a clamping nut mounted on the threaded portion of the sleeve for tightening the said disc against the said inner flange and thereby looking the sleeve and bar in position relative to said plate.

6. A control mechanism comprising centrally-apertured plates relatively rotatable about their center and one adapted to be mounted upon a wall, a sleeve mounted in said aperture and carrying one plate relative to the other, the sleeve adapted to receive a bar end therein for adjustment of the latter, indicating means on said sleeve for indicating on the stationary plate the position of the sleeve and bar, and means on the outer end of said sleeve for actuating said sleeve and the movable plate.

7. A control mechanism comprising a circular plate centrally-apertured for encircling the protruding end of a bar connected with a damper pivoted within a flue in a wall, in combination with a sleeve for operative connection with said bar end, said plate ada )ted to be attached to the surface of said wall at its rim, and the said sleeve rotatably mounted in said aperture of the plate, a central portion of said plate being spaced out of contact with said wall surface, a disc apertured to receive the sleeve end therein and rotatably connected thereon, the disc and spaced portion of the plate having indicating means to show outside the plate the relative position of the disc and sleeve to the plate, clamping means on said sleeve for tightening the disc and plate against relative longitudinal move ment with the sleeve, and means for'actuation of the sleeve to adjust the bar rotatably, and indicate the amount of such adjustment.

In witness whereof I have hereunto set my hand this fifth day of October, A. D. 1928.

EMIL O. YOUNG.

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