US409980A - Double-acting bellows - Google Patents

Description

(No Model.) I I H. KOHN.

DOUBLE ACTING BELLOWS. q Patented Aug. 27, 18891.

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N. PETERS, FholoLilhcgnphar. Washington D. C.

UNITED STATES PATENT OFFICE.

HERMAN KOHN, or SAN rnAncisoo, CALIFORNIA.

' DQU BLE -ACTING BEL'LOWS.

SPECIFICATION forming part of Letters Patent No. 409,980, dated August 2'7, 1889.

Application filed November 24, 1888. Serial No. 291309. (No model.)

To all whom, it may concern:

Be it known that I, HERMAN KOHN, a subject of the Emperor of Germany, residing in the city and county of San Francisco, and State of California, have invented certain new and useful Improvements in Double-Acting Bellows, of which the following is a specification.

My invention has for its object to produce a double-acting bellows for blacksmiths and other purposes in the arts and trades that shall possess certain features of power, simplicity, durability, and cheapness of construction, as hereinafter fully set forth. This ob ject I accomplish by means of the construction illustrated in the accompanying drawings, in Which Figure 1 is a front elevation of my bellows set up for operation. Fig. 2 is avertical sec tion taken longitudinally through the parts. Fig.3 is an end view taken from the righthand end of Fig. 1. Fig. 4 is a top view in detail of one of the guide-rollers and a portion of the fixed rail on which it travels.

The same letters of reference are used to denote corresponding parts in the several views.

The frame consists of side pieces A and end pieces A within which the main bellows B is fixed, while on the top is arranged an expansible receiving-chamber O, having communication with the bellows B through a passage and aperture D at each end. These lead out at the heads A of the frame between which the bellows is set, and contain the upwardlyaeting valves E E, arranged to control the inlets into the chamber 0 above.

The bellows Bis of the do uble-act-ing kind that is, it operates to take in air at one side and force air out at the other side at every stroke, so that loss of time during the return frame is a horizontal guide-rail G, with a channel for the wheel to travel in, and beneath the rails on suitable supports furnished by crossbeams A at the bottom of the frame a rockshaft- H is set to one side of the center and with a fixed arm I'I on each end. To these compressed and the other distended at each stroke, and the lever K thus acts to force air' into the chamber above ineither direction of its movement. The passages ortrunksD lead out from the fixed heads and enter at the bottom of the box (J, which projects beyond the frame at the endsfor this purpose, and from this box at one end the conductorL also leads to carry and deliver the air to any point for service. A valve M is provided in this conductor to shut off and to control, as well, the supply of air. Above this box portion the chamber is formed of the expansible section C the two constituting anexpansible receiver, that is also capable ofojperatihg as an I accumulator by suitably weighting thetop. The air-inlets N, controlled with suitably-acting valves, are formed in each fixed head of the bellows B, as shown in Figs. 2 and 3. By this construction I produce a powerful as well as a strong and durable bellows, that will be found to work smoothly and furnislran even blast with a comparatively small ex.- pendit-ure of power. 1 p

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

l. The herein-described bellows, consisting of the two suction and force compartments placed end to endand separated by an imperforate movable partition, the fixed heads.

having valved inlets for air from the outside,

and air-passages controlled by valves to deliver air into a common receiving-chamber,

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above which said chamber is adapted to form an expansible receiver, and a rock-shaft provided With an operating-lever connected, substantially as described, to the said partition.

2. The combination, With the double-acting bellows, of the rock-shaft H, provided with the operating-lever K, and having fixed arms H H the movablehead-board B having the fixed studs F F, which are mounted on Wheels or rollers f, the links I, connecting the fixed arms IF, and the studs F, and the guide-rails to G G, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand and seal.

HERMAN KOHN. [L.

WVitnesses:

EDWARD E. OsBoRN, OTIS V. SAWYER.

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