US1152751A - Draft-regulator for heating-furnaces. - Google Patents

Description

A T. OLIVER.

DRAFT REGULATOR FOR H EATING FURNAQES. APPLICATION FILED MAY 13. 1913.

1,152,751. PatentedSept. 7, 1915;

2 SHEETS-SHEET 1.

WITNESSES [1V [{EMT 01? 8.114111% I A I I A. T. OLIVER. DRAFT REGULATOR FOR HEATING FURNACES.

APPLICATION FILED MAY 13, I913.

2 SHEETS-SHEET 2.

WITNESSES X1344. my.

Patented Sept. 7, 1915.

ABRAHAM 'I. OLIVER, OF TAMAQUA, PENNSYLVANIA.

DRAFT-REGULATOR FOR HEATING-FURNACES.

Specification of Letters Patent.

Patented Sept. *7, 1915,

Application filed May 13, 1913. Serial No. 767,466.

To all whom/25 may concern:

Be it known that I, ABRAHAM T. OLIVER, citizen of the United States, residing at Tamaqua, in the county of Schuylkill and State of Pennsylvania, have invented certain new and useful Improvements in Draft- Regulators for Heating-Furnaces, of which the following is a specification.

This invention relates to time controlled draft regulators for heating furnaces and pertains especially to mechanism for closing the fuel chamber door and opening the draft door or damper of a furnace simultaneously, and at a predetermined time.

The prime object of this invention is to provide a device of such construction that its operation to open and close the damper and door respectively, of the furnace will be certain, unfailing and without lost motion in itself or in the opening and closing of the damper and door.

A further object of the invention is to provide a novel device connected to the fuel chamber and to the draft door of a furnace and operated by a time set clock, and com prising a simplified and inexpensive arrangement of elements adapted to be quickly and expeditiously set for releasing a weighted lever to open the fuel door and close the draft door simultaneously, or vice versa. 7

A still further object of the invention is to provide practical means affording facilities for mounting thereon the operating mechanism of the device and for holding a clock or time piece thereon and to furnish a special connection between the time piece and such mechanism for operating the latter.

With the above and other objects in view, my invention relates to such details of construction, combination and arrangement of parts as will be hereinafter more fully described and specifically pointed out in the appended claim.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views and in which;

Figure 1, is a front elevation of the fur-- nace showing an ordinary alarm clock as means for actuating the operating mechanism, Fig. 2, is a rear elevation of an ordinary alarm clock showing the same in conjunction with suitable triggers for releasing the operating mechanism atcertain predetermined periods. Fig. 3, is a detail view of the trigger mechanism, and,/Fig. 4, is a fragmentary View of a portion of the furnace showing mechanism having attachment to the fuel door.

In the accompanying drawings wherein is shown the preferred embodiment of my invention, the numeral 10 designates the body portion of an ordinary heating furnace illustrating a heat conducting pipe 11 as having connection therewith for the purpose of distributing heat throughout the different radiators Within the building. Fuel and draft doors 12 and 13 respectively have hinged connection as shown at 1% and 15, to the adjacent portions of the furnace and serve the usual purpose. A heat outlet door 16 is also shown in pivotal engagement with the heat pipe 11, and serves to eliminate the creating of a draft when in an opened position.

Consistent with the above, I have provided improved mechanism for actuating the doors 12, 13 and 16 simultaneously in order to regulate the draft within the furnace. I preferably use, for actuating such mechanism, a clock or time piece of suitable nature, such as will release the doors at a predetermined period without any attention whatsoever on the part of the owner.

Vith the above in view, a support 17 is arranged adjacent the furnace, the same carrying an angle bracket 18 which is secured thereto as shown at 19. The clock or time piece used for releasing the device is preferably carried on the bracket and disposed in close proximity to the trigger elements in order to assure e'lficient operation. In providing the trigger elements, an upstanding standard 20 is provided upon the bracket, the latter carrying oppositely arranged levers '21 and 21, the latter of which is slotted as at 22 in order that it may receive the forward extremity of the former in the manner illustrated in Fig. 8. Suitable cable mechanism is arranged in connection with the door elements and the trigger elements whereby actuation of the latter will release the doors and allow the same to assume predetermined positions. In providing such mechanism for operating the doors simultaneously, a cable 23 is provided, one end thereof having connection as at 24c to the draft door 18 of the furnace, the same traveling about pulleys and 26 as illusabout pulleys 30 and 31 and is finally con-' nected to the door 16 as at 32. Therefore .from the above, it is apparent that when the draft door is in a closed position, the door 16 will be opened or vice versa. A third cable is employed which has connection with the weighted end of the lever 27, extends about a pulley 33 and carries an eyelet 34: on its other extremity as, illustrated in Fig. 2; In order to limit the movement of the eyelet, the latter has connectionwith a cable strand 35 which is secured to the support 17 as at 36. When the doors are set in the position illustrated in Fig. 1, the eyelet 22 is disposed over the lever 21, as is clearly shown in Fig. 3 of the drawings, thus holding the weighted end of the lever 27 in an upper position.

Still another cable 37 has connection with the last mentioned cable between the pulley 33 and the weighted end of the lever 27,

the other end thereof extending about the pulleys 38 and 39 and carrying a fastening member 40 for engagement with lugs ll on the fuel door 12 of the furnace.

Here particular attention is called to the particular construction of the latch or securing member 40. This afiords facilities for attaining the attachment of the cable 37 p I to the door yet allows a quick detachment thereof when desired to admit fuel into the furnace.

From the above, it will be recognized that the doors 12 and 16 are held opened or closed together at the same time while the door 13 is always opposite thereto. "When the doors 12 and 16 are open and the door 13 closed, all draft is eliminated in the furnace consequently the fire will not burn as quickly as would be the case if the door 13 were opened and the doors 12 and 16 closed. At night, the fire within the furnace is allowed to die down somewhat and this is effected by closing the draft door 13 and allowing the doors 12 and 16 to-remain open. In conjunction with the mechanism mentioned, I have provided time control means for allowing the doors. l2 and 16 to close and the draft to open at a predetermined time, consequently allowing the Gopies of this patent may be obtained for a closed position.

and alarm mechanism actuating handle 14:.

The handle 44. is, as is well known, employed for winding the spring'which actuates the alarm mechanism of the clock andwhen the ,alarm rings this key or handle t will travel -in the direction indicatedby the arrow 4 1.

When the clock is disposed as is shown in the drawings the handle 44, will, during the ringing of the alarm, engage the end of the lever 21 and force the same off the end of the lever 20, thus releasing the weighted lever 27. This'releasing of the lever 27 will cause the same to rock and open the draft door of the furnace throughthe medium of the cable 23. When this operation takes place, all pressure is released from the cable 29 whereby the'door 16 is allowed tomo-ve into At the same time the weighted lever 27 will draw the cable 37 to effect, the positiveclosing of the door 12 i as is apparent. V q Gther advantages resultant from the use of my invention will be readily comprehended by those employed in this art.-

Having thus fully described my invention, 7

what 1 claim as new and desire to secure by Letters Patent is as'follows: Y

The combination witha heating element having draft'doors therein, of a draft regulator, said regulator comprising a bracket, a standard supported upon the bracket, an

arm piv'otally connected to thestandard and having an elongated eye in the free end thereof, a second arm pivotally connected to the standard and adapted to pass through the eye in the first mentioned arm, a weighted lever pivotally supported above the standard, a cable connected at one end to the weighted lever and the opposite endprovided with an eye adapted to engage the five cents each, by addressing the Commissioner of Patents.

Washington, D. G.

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