US670791A - Door-holder. - Google Patents

Description

No 670,79l. Patented Mar. 26, MIDI. P. F. LEHMANN.

0R HOLDER.

:A ica. ion filed July 16. 1900. (No Model.)

2 Slieets-5haet 2.

W/TNESSES INVENTOR UNITED STATES PATENT I FFICE.

PAUL F. LEHMANN, OF CHICAGO, ILLINOIS.

DOOR-HOLDER.

SPECIFIGATION forming part of Letters Patent No. 670,791, dated March 26, 1901.

Application filed July 16, 1900. Serial No. 23.752. \lIo mociel.)

To all whom it may concern:

Be it known that LPAUL F.LEHMANN,a citizen ofthe United States of America, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Door-Holders, of which the following is a specification.

My invention relates to door-holders, and has for one object the construction of a device that will hold a door or a pivoted window in either of two positions or will permit it to be freely opened or closed. Another object is to make it extremely difficult or impossible to operate the device from the outside. One of the positions in which the device holds the door is tightly shut, and in this case it serves the purpose of a bolt or look. Another position is holding the door slightly ajar and so that it cannot be blown open or shut by the wind.

My invention is illustrated in the accompanying drawings, in which- Figure 1 is a section of a door and jamb with the device in position to hold the door tightly shut. Fig. 2 is a similar section with the device holding the door ajar. Fig. 3 shows the device in a position to permit a free movement of the door. Fig. 4: is an enlarged detail, and Fig. 5 is a front elevation of Fig. 1.

In the said drawings, J represents the jamb or casing, and D the door. Secured to the jamb J by screws is a bracket B, in which is pivoted the arm A on the rivet R. Secured to the outer end of the arm or lever A is a chain O, on the free end of which is a hook H, having the general shape shown in Fig. 5. In the enlarged end G of the arm A is a slot S, in which the hook H may be inserted. When the arm or lever A is in the position shown in Figs. 1 and 5, the slot S has the relationship to the bracket B that is shown in Fig. 4.. In this case when the hook H is inserted in the slot S the contact between the hook and the bracket B prevents the hook and the free end of the arm A being swung outward, and consequently prevents the door from being opened. The hook H is not only curved in the manner shown in Fig. 5, but is made tapering, so that by pressing it down it acts as a key or wedge to force the free end of the arm A toward the door. By this means it is not necessary that the bracket B be accurately located in regard to its distance from the edge of the door, and the device will work equally well under considerable variations in height between the face of the door and the face of the jamb. On the arm A at a dis tance a little more than the thickness of an ordinary door from the point of connection with the chain O is a boss E, in one side of which is a rubber plug F. The shape of the arm A is such that when it is in the position shown in Fig. 1 the rubber alone comes into contact with the face of the door. The object of this is to prevent the device from marring the face of the door. The length of the chain O is made as short as will permit the hook H being readily inserted in the slot. S.

Secured to the face of the door on a level with the bracket B is a second bracket K. The distance between the edge of the door and the bracket K is such that when the door is in the position shown in Fig. 2 the chain when hooked to said bracket is very nearly taut. There is, however, enough slack in the chain to permit the arm A to be drawn back by hand far enough to permit the door to be moved past the rubber F. The normal sag of the nearly tight chain acts to keep the arm A drawn into the position shown in Fig. 2, in which position the door will be held from blowing shut by contact with the boss E, while it will be held from being opened by the tension of the chain 0. By observing Fig. 5 it will be seen that the end of the hook is given such a curve that the said hook must be turned through a long are before it can be released from whatever it is engaged with. It will therefore be evident that with the hook H hooked into the bracket K the said hook cannot be released while the door is in the position shown in Fig. 2, because the nearly tight chain will not permit the hook to be turned. As a consequence before the door can be opened it must first be partially closed,so as to slacken the chain and permit the hook to be turned. The extreme open position of the door that will permit the hook to be released from the bracket K is one just inside of or slightly more closed than that shown by the dotted lines X of Fig. 2. In this position the hook cannot be reached by a person on the outside of the door. From this it Will be seen that the door may be left open some five or six inches, but cannot be opened wide enough to permit any one to pass without first being closed, and when closed the holding device cannot be released by any one on the other side of the door.

By swinging back the arm A and inserting the hook H in the slot S, but on the opposite side of the bracket B, as shown in Fig. 3, the

device is held clear of the door and it (the door) may be freely opened and closed. The position shown in Fig. 3 is the extreme position that the arm or lever A can swing to the right when the hook is inserted on the righthand side of the bracket B. The arm may,

- ing therefor, of a bracket secured to said casing, a lever pivoted to said bracket and adapted to engage one side of said door, a second bracket secured to the other side of the 1 door, and a chain secured to the free end of said lever and arranged to be attached to the bracket on the door, said parts being arranged substantially as described so that said door must be closed before said chain can be attached to or detached from the bracket on said door.

3. The combination with a door and a casing therefor, of a bracket secured to said casing, a lever pivoted to said bracket and provided with a boss on one side, located at a pointintermediate the ends, said lever being movable on its pivot so as to bring said boss into contact with said door when closed, a yielding cushion secured to said boss and interposed between it and said door, and a key arranged to hold said lever securely in such contact.

4. In a door-holding device, a bracket, a door-holding lever pivoted to said bracket and provided with a slot adjacent to its pivot, said slot being so located that it may appear at either side of said bracket by moving said lever on its pivot, and ahook connected to said lever and adapted to be inserted in said slot.

5. In a door-holding device, a pivoted lever, a chain secured to the end of the lever, and a hook on said chain adapted to engage a projection or bracket on said door, said hook having its end curved inward beyond the normal curve of a hook substantially as shown and for the purpose set forth.

6. The combination with a door and its casing, of a bracket secured to the casing, an arm or lever pivoted to said bracket, a chain secured to said arm, a second bracket, and a boss or projection on said arm adapted to engage the edge of said door, said parts being arranged to hold said door ajar substantially as described.

Signed at Chicago, Illinois, this 14th day of July, 1900.

PAUL F. LEHMANN.

Witnesses:

WM. A. ROWLAND, O. L. REDFIELD.

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