US527047A - Shutter-bower - Google Patents

Description

(No Model.) v

A. G. OHRISTMAN. SHUTTER BOWER.

No. 527,047. Patented Oct. 9, 1894.

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AUGUSTUS G. CHRISTMAN, OF READING, PENNSYLVANIA.

SHUTTER-BOWER.

SPECIFICATION forming part of Letters Patent No. 527,047, dated October 9, 1894.

Application filed April '7, 1394.

To all whom it may concern.-

Be it known that I, AUGUSTUS G. CHRIST- MAN, a citizen of the United States, residing at Reading, county of Berks, State of Pennsylvania, have invented certain Improvements in Shutter-Bowers, of which the following is a specification.

The object of my invention is to provide an improved device for locking and bowing shutters which will be simple and cheap in construction and easy and satisfactory in operation.

The invention is described in connection with the accompanying drawings and is specifically pointed out in the claims.

Figure 1 is an elevation showing my device applied to a pair of shutters, the latter being represented as closed and locked. Fig. 2 is a partly sectional view on line x m Fig. 1. Fig. 3 is a top view representing the shutters as bowed. Fig. 4: is an edge view of the shutter Ashowing the keeper plate in full and the bolt in cross-section. Fig. 5 is a view of the separately formed plate D of the bolt casing.

A, A represent hinged shutters to the adjoining edges of which my device is attached.

B, B is the keeper plate or box which is fixed to one shutter and adapted to receive the sliding bolt 0 which is guided as usual in a casing D fixed to the other shutter.

The bolt 0 is provided with a pivot hole 0 at its outer end and with a series of notches c in its upper edge extending from its opposite end. It is also formed witha finger piece 0 which serves as a stop by coming in contact with the cross-bars d and d of the casing, which bars serve to hold the bolt in place. The casing plate is open at the rear to permit the bolt 0 to be entered back of the crossbars 61 and d, the opening being made at least as long as the bolt measures from the finger piece a to its inner end, and a separate plate D being provided to close a portion of this opening after the bolt is inplace as indicated. The bolt is mounted in the casing D before the latter is secured to the shutter by first passing the apertured end through the'opening in the rear plate of the casing, under the cross-bar or keeper at until the finger piece'or stud c engages said crossbar as shown in Fig. 1 when the opposite end of the bolt may be moved outward against SerialNo. 506,683- (No model.)

the cross-bar or keeper (1 and the removable plate D secured in place back of it. This construction enables me to cast the finger piece integral with the bolt while at the same time providing a metal backing for it at all times. The box B is provided with a pivot pin 1) which projects toward the other shutter and the point of which is turned inward, sufi'icient space being left between itand the box plate to permit the passage of the bolt 0. The bolt as shown is grooved longitudinally on its inner face thus allowing the point of the pivot pin to reach nearer to the face of the shutter without interfering with the movement of the bolt.

Pivoted' to the face of the casing plate D is a lock arm F the point f of which is arranged to drop down into engagement with one or other of the notches c. A somewhat similar movable piece E is pivoted at e to the box or keeper plate B, the end ,6 of which is arranged to swing down between the point of the pivot pin b and the keeper plate so as to to prevent the passage of the bolt 0.

In operating my device to lock the shutters when closed the hinged pieces E and F are thrown back out of engagement with the bolt until the latter is moved outward into the box B as shown in Figs. 1 and 2 when the lockF may be dropped into one of the notches c to secure it. of the bolt is withdrawn from the box B, the end of the pivot pin b is entered in the pivot hole 0 and the. movable piece E is thrown the box plate thus preventing the disengagement of the bolt from the pivot pin. The shutters may now be opened to any desired angle as indicated in Fig. 3, and so held by merely dropping the lock arm f into one of the notches c.

Having thus clearlydescrlbed my invention I do not limit myself to the exact construction shown, but 7 What I claim is v 1. The combination with the sliding bolt having a pivot hole at the outer end thereof, of a keeper or box fixed to the opposite shutter and provided with a pivot pin b and a movable piece adapted to swing into the path of the bolt and to move the end thereof into reduce the space between them sufficiently To bow the shutters the outer end down between the rear face of the bolt and ,i

engagement with the pivot pin,'thebolt being free to ride past the pin when said movable piece is moved from its path, substantially as set forth.

2. The combination with the sliding bolt having a pivot hole at the outer end" thereof and a series of adjustment notches near the opposite end, of a keeper or box fixed tothe opposite shutter and provided with a pivot pin 61, a movable piece adapted to swing into the pathof the bolt and tomove the end thereof outward into engagement with the pivot pin and a look to engage one or other of said notches, substantially as set forth.

3. The combination with the sliding bolt having a projecting finger piece a? formed integral therewith, of a casing therefor, havlng raised cross-bars d and d, and an opening in the back large enough to admit the bolt to the rear of said cross-bars, and a separate plate D arranged to fill a portion of said opening after the bolt is entered substantially as set forth.

In testimony whereof I afiix my signature in presence of two Witnesses.

AUGUSTUS G. CI-IRISTMAN.

Witnesses:

CAMERON E. STRAUSS, W. G. STEWART.

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