US901485A - Damper. - Google Patents

Description

'.T. G. F. SGHAFER.

DAMPER. APPLICATION FILED APB. 4,1904.

Patntedoct. 2o, 1908.`

JOHN C. F. SCHAFER, OF MOUNT PULASKI, ILLINOIS.

DAMPER.

Specification of Letters Patent.

Patented Oct. 20, 1908.

Application filed April 4, 1904. Serial No. 201,620.

To all whom it may concern:

VBe it known that I, JOHN C. F. Sci-MEER, a citizen of the United States, residing at Mount Pulaski, in the county of Logan and State of Illinois, have invented a new and useful Damper, of. which the following is such a full, clear, and exact description will enable others skilled in the art to make and use my said invention.

My invention relates to dampers such as are commonly used in stove pipes and for similar purposes, and the object of my invention is to provide a damper that can be placed in a pipe more easily than any now made, and one that does not require the pipe to be perforated, and to accomplish the same results as the dampers now in use.

With this end in view my invention consists of the novel features of construction and combinations of parts shown in the annexed drawings to which reference is hereby made, and hereinafter particularly de scribed and finally recited in the claims.

Referring to the drawings Figure 1 is a perspective view of the damper in position on a section of stove-pipe. Fig. 2 is a top plan of the damper-plate detached. Fig. 8 is a perspective view of one of the brackets supporting the damper-plate and Fig. 4 is a perspective view of the other bracket supportin the damper-plate.

Similar reference letters designate like parts in the several views.

The damper-plate A is substantially of the form shown and may be made of cast iron o1l malleable iron or steel.

The brackets B and B', are of sheet iron or steel of the forms shown and bent as at L to fit on the upper end of a section of stovepipe and are mounted on the end of the pipe section in which the damper is to be placed, and the axis a of the damper turns in holes Z in these brackets; a lever II is mounted to turn in a bearing 7L on the bracket B. The upper end of the lever H passes through a slot K in an arm J on the damper-plate, its lower end being bent to form a handle h for convenience in turning the damper-plate. The next section of pipe telescopes a short distance over the section in which the dam per is placed, and it will be found that the brackets do not interfere much with this.

In Fig. 2,A is the damper-plate, and a. a. the axis on which it turns: b. are enlargements or heads on the ends of the axis a. a.

J is an arm on the damperplate, and K is a slot in this arm shown in Fig. l

The axis of the plate A has at its end, heads b, which prevent the axis from slipping out o-f the holes in the brackets. The axis a, turns in the holes l of the hangers B and B. Slits e are cut in the brackets and extend down into the holes d, and permit enlargement of the holes so that the heads .7) may be inserted and the edges of the slits are then pressed together so as to prevent the heads from slipping out of the holes in the brackets.

F. F. are narrow strips cut from the brackets except at their upper ends and when the next section of pipe is in position, the free ends are turned up, to assist in holding the brackets firmly in position. The lower end of the bracket B may be enlarged, and its lower edge notched and bearing on the lever H, to assist in holding it at any point. In both brackets the parts as at m and n are brought closely together, that they may assist in holding the brackets firmly in the pipe. The brackets are separately movable on the upper end of the pipe section on which they are supported, and may withoutl special fitting of the parts be easily and quickly placed on the pipe-section to bring the holes in the brackets into line with the axis of the damper-plate in such position that the damper-plate will be properly centered with respect to the pipe-section.

In use the axis of the damperplate is put in the enlarged holes in the two brackets, and the openings are then reduced that the axis may not pull out of these brackets, as stated. The brackets are then placed over the upper end of the section of. pipe on opposite sides, so that the damper plate can be turned freely. The next section of pipe is then placed on the said section the usual distance: the free ends of the strips F are turned up to hold the brackets firmly in the pipe. The damper plate can now be turned by the handle z, which is on the outside of the pipe, and the damper used. for the purposes intended.

Having described my invention, what I claim as new and desire to secure by Letters Patent is,

l. The combination of a pipe section adapted to fit within a complemental pipe section, brackets fitting on the end of the first named pipe section and having inside members provided with holes, and one of said brackets having an outside member adapted to support a lever, a damper plate having headed trunnions fitting in the holes of the bracket members inside of the pipe section, and a lever mounted on the outside member of one of the brackets and'connected to oscillate the damper plate.

2. The combination of a pipe sect-ion adapted to fit within a complemental pipe section, brackets adapted to be supported upon said first named pipe-section and having members adapted to support the brackets on the first named pipe section and membersl adapted to be bent to lie against the oomplemental pipe section, an oscillative damper plate mounted on the brackets, and a lever supported on one of the brackets and connected to oscillate the damper plate.

3. The combination of a pipe section adapted to telescope within a complemental pipe section, separately movable bracket-s adapted to fit over the end of the iirst named pipe section also adapted to fit around the end of and lie against the wall of said complemental pipe-section, a damper plate supported within the iirst named pipe section upon said brackets, and a lever adapted 12o lie between said iirst named pipe section and the complemental pipe section and connected to operate the damper plate.

4L. A damper attachable to an outer pipesection and a complemental inner pipe-seetion; comprising separate brackets adapted to support an oscillative damper-plate and adapted to engage the walls and ends of both of said pipe-sections to prevent movement of said brackets upon either of said pipe-sections, a damper-plate oscillative on said brackets, and a lever mounted on one ot said brackets and adapted to lie between the telescoping pipe-sections and connected to oscillate said damper-plate.

5. A damper attachable to an outer pipesection and a complemental inner pipe-section; comprising separate brackets adapted to tit on the end of the inner pipe-section, said brackets having an inner member adapted to support a damper-plate and outer members adapted to lie between the walls of the telescoping pipe -sections, a damper -plate oscillative on the inner members of said brackets, and a lever mounted on the outer member of one of said brackets and connected to oscillate said damper-plate.

G. The combination of a bent bracket having two members and adapted to fit on the end of a section of pipe, one member of the bracket being provided with a bearing for said member being bent, a damper-operating gage with the bent end of said member, and a damper adapted to be operated by said lever.

7. The combination of bent brackets adapted to tit on the end of a pipe-section and having bearings adapted to support a damperplate, a damper-plate adapted to oscillate in the bearings of the brackets and a lever mounted on one of the brackets and having a. lateral extension adapted to operate the damper-plate.

In witness whereof I have hereunto subscribed my name, at Mount this 22 day of March, 1904.

JOHN' C. F. SCHAFER.

7itnesses C. E. MUELLER, WM. B. JENNER.

a. damper-operating lever, and the end of ti Pulaski, Illinois, i

lever provided with a handle adapted to en-

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