US1608937A - Damper-operating mechanism - Google Patents

Description

- Nov. 30, 1926. 1,608,937 v P. P. HENSHALL DAMPER OPERATING MECHANISM Filed Feb. 25, 1925 IN VEN TOR.

momma Patented Nov. 30, 1926.

UNITE STATES PATENT ()FFICE.

PERCIVAL "R I-IENSI-IALL, GE ATLANTIC CITY, NE'W JERSEY, ASSIGNOE TO JOHN J. NESBI'IT, INC., 0F ATLANTIC CITY, NEW JERSEY, A CORPORATION OF. NEW JERSEY.

DAMPER-OPERATING MECHANISM.

Application filed February 25, 1925.

This invention relates to damper control mechanism for ventilating units and the like and more particularly to a novel and improved means for adjusting the position of the damper within the said unit whereby the air may pass through the heating chamber or the bypass chamber or partially through both the by-pass and heating chambers.

One of the objects of my invention resides in the construction of a manually controlled mechanism for regulating and adjusting the damper of a ventilating unit from the end of the cabinet or casing whereby access may be readily gained to the interior of the ventilating unit and particularly to the motor board, radiator and inner compartments without disassembling the damper control mechanism.

A further object of my invention resices in the provision of a control mechanism for hingedly connected dampers located within the cabinet or casing of a ventilating unit and operable from one end thereof as dis tinguished from those devices extending through the front of the cabinet or casing, including rotatable means for actuating the said damper whereby it may be set to any desired position between two extremes to permit the air to pass through the bypass chamber or heating chamber or partially through the by-pass chamber and heating chambers.

Another object of my invention is to provide a manually operable disk located within the cabinet or casing of a ventilating unit, said disk being operable through a shaft and from the end of the said cabinet or casing and constructed and arranged for cooperation with the damper whereby said damper may be moved in the path of the arc of a circle or set at any position between two extremes to regulate the passage of air into the by-pass chamber, the heating chamber or partially through the bypass and heating chambers.

In order to more fully appreciate and understand my invention, reference is had to the accompanying drawing wherein:

Fig. 1 is a vertical sectional view through the cabinetor casing of a ventilating unit showing the application of my invention.

Fig. 2 is a front view, a portion of the cabinet or casing being shown broken away.

Fig. 3 is an enlarged view showing the Serial No. 11,619.

relation of the disk control with the hinged damper.

Referring now to the drawings wherein like reference characters designate corresponding parts throughout the several views, designates the front wall and 6 the rear wall of a cabinet or casing of a heating and ventilating unit. The interior of the cabinet or casing is divided to provide a blower chamber 7, preferably in the bottom, a heating chamber 8 and a bypass chamber 9, in the top, said last mentioned chambers being separated by a partition or wall 9. The lioor 10 of the heating chamber is bent or struck up as indicated at 11 so as to provide a stop for the bottom of a damper 12, said damper being usually hingedly connected as at 13 to the partition or wall 9 above referred to. The damper may thus swing in the path of the are of a circle between the front wall of the cabinet or casing and the struck up portion of the floor 10 so as to control the upward passage of air to the bypass chamber, heating chamber or to both the by-pass and heating chambers.

It has been the practice heretofore of adjusting the damper of the heating and ventilating units by various means located at the front of the cabinet or casing. This practice has always been found to be obj ect-ionable for the reason that it is frequently necessary to gain access to the radiator, motor board, by-pass or heating chamber, in which instance it has been necessary to first disassemble the damper control mechanism. In order to overcome this objection and at the same time produce an eiticient damper control and operating mechanism, I have provided an operating shaft 1 1: supported by suitable hangers 15, 16 connected to the partition or wall, said hangers being spaced and located substantially intermediate the end walls of the cabinet or casing. The lower ends of the hangers are provided with bushings 17 for the shaft and the ends of said shaft are also mounted in suitable bushings 18 as shown by Fig. 2 of the drawing. An operating handle 19 located at one end or wall of the casing permits of the rotation of the shaft for the proper operation and control of the damper in the manner now to be described.

An enlarged disk 20 having a bushing 21 is mounted or keyed to the shaft between the lower ends of the hangers, said disk being operable through a slot '22- of the damper 12. A bracket 23 is riveted or secured to the damper and retains a pin 2st, one end of the said pin extending through a spiral slot 25 in the body of the operating disk 20, as shown by Fig. 3 of the drawing. The spiral slot extends from a point adja: cent the disk bushing to a point near the periphery of the disk and thus permits of the adjustment or actuation of the damper between the front wall of the cabinet or casing and the struck up portion 11, It will thus be seen that as the operating shaft and the disk carried thereby is rotated by the handle, the connecting pin attached to the damper will move through the spiral slot and consequently the damper will be actuated in the path of the arc of a circle and thus control the passage leading to the lay-pass and heating chambers. The connecting pin prevents the relative movement of the disk and damper so that when the shaft is rotated by the handle, the damper may be set at any position between one two extremes to regulate the flow of air into the respective chambers.

Having shown and described my invention what I now claim as new and desire to secure by Letters Patent is 1. Means for regulating and controlling the air circulation within an enclosed ca ing comprising a shaft mounted vi hin the casing, a disk mounted on rotatable with the shaft, a damper pivoted to the casing and means connecting the di and damper for movement of the latter to set the casing, a. slotted disk keyed to the shaft, a slotted damper hinged within the cats ing for movement relative to an air passage therein and a connecting pin for said disk and dam er whereby the latter may be actuated upon the rotation of the shaft .to open or close or partially open the said air passage.

4-. Means for regulating and controlling the air circulation within an enclosed casing comprising a shaft mounted within the casing, a disk having a spiral slot keyed to ant rotatable with the shaft, a slotted damper hr ged tn the said casing at a point above an interior air passage, pin connecting the damper 'ith the spiral slot of the disk and means for rotating said shaft whereby the damper may be set to predetermined positions to control the air passage,

5. Means for regulating and controlling the air circulation within an enclosed casing comprising a shaft, hangers connected within the interior of the casing for supporting said shaft intermediate its ends, a disk having spiral slot keyed to the shaft and between the hangers, a damper hinged to the casing above an interior air passage, a bracket connected to the damper, a pin *arried by said bracket, one end of the pin .rrtending into the spiral slot and a handle exteriorly of the casing for actuating said shaft whereby the damper :may be set :to letermined positions relative to the air .s age to control the circulation of air ierethrough.

iii leans for regulating and controlling the air circulation within an enclosed casture.

PERCIVAL HEN SHALL.

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