US1476297A - Movable doorpost and latching means therefor - Google Patents

Description

Dec. 4 1923.

r R. H. GREEGOR MOVABLE DOORPOST AND LATCHING MEANS THEREFOR Filed Nov. 20, 1922 2 Sheets-Sheet 1' NTOR INVE RALPH H.GREEGOR M ATTYS.

De.4,1923. j 1,476,297-

R. H. GREEGOR Y MOVABLE DOORPOST AND LAT CHING MEANS THEREFOR Filed Nov. 20. 1922 2 Sheets-Sheet 2 I m ,2; V 2.9. (/12 ja gr 20 1 INVENTOR RALPH H.GREEGOR 4;, ATTYS.

Patented Dec. 4, 1923.

UNITED STATES 1,476,297 PATENT OFFICE.

RALPH H. GBEEGOR, COLUMBUS, OHIO, ASSIGNOR TO THE KINNEAR MANUFAOT UR- ING COMFANY, OF COLUMBUS, OHIO, A CORPORATOI'N OF OHIO.

MOVABLE meme AND LATCHING MEANS 'rnnmaroa.

Application filed November 20, 1922. Serial No. 602,012.

To all whom it may concern:

Be it known that I, RALPH H. Gammon, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Movable Doorposts and Latching Means Therefor, of which the following is a'specification.

This invention relates to door posts and their operating and latching means of the kind shown, for example, in the United States patent to Edward H. McCloud, No. 1,283,836, dated November 5, 1918, and the invention has for its object to simplify the construction and dispense with an elaborate mechanism to release the p st latch and thereby render such a construction less expensive and make it equally, if not more, certain and efficient in operation.

The invention is embodied in the example herein shown and described.

' In the accompanying drawings Figure 1 is a side view showing the door post in closed and latched position.

Fig. 2 is a similar view showing the post raised.

Fig. 3 is a side view 'on a larger scale). broken out showing the post in closed and latched position.

Fig. 4 is a side view of the lower end of the post unlatched and partially removed from latched position.

Fig. 5 is a front view of the post partially broken out.

Fig. 6 is a cross section of the post.

Fig. 7 is a detail in vertical section of the Weight and the latch it carries pivoted thereto.

The post includes, in the instance shown, an angle member 17 secured to channels or guides 17 hinged at 18 to end brackets 19. The end brackets 19 support the shafts of rolling metallic doors (not shown) the'edgles of which travel in the channels 17. character 29 designates a weight that travels on guiding edges 17 on the angle member 17. The weight carries in its lower end a latch 20 pivoted at 20 to the weight saidlatch being provided with a toe 2O striking against a. shoulder in the weight so as to permit it to swin on a small arc across a radius substantially at right angles to the post 17 The weight 29 has secured to it a light cable 32 that is passed upward around a pulley 27 journaled between brackets 27 on the upper end of the member 17. The 2 free end of the cable .32 has attached to it a small pulley 34-. The lower end of the post has attached to it a rigid extension 35 to which is attached a stout cable 33, which cable is extended upward around the pulley 34 to a point where power may be applied to it for drawing it to'raise the post and from which it may be released for lowering the post to closing position.

21 is a stop on the floor for arresting the post at its closed position and 22 is a. stop on the floor behind which the latch falls when the post is in closed position to prevent the post from swinging inward until operated by the cable.

The operation is as follows: \Vhen the post is in closed position the stout cable 33 is flexed as shown in Fig. 1, and when the cable is drawn upon with sufficient force it tends to straighten as shown by broken lines in that view. Such draft on the cable 33 draws down on the free end of cable 32 and up on the weight thereby lifting the weight and with it the latch 20 from engagement with the stop 22 as illustrated in Fig. 4. After this release of the latch further draft on the cable 33 may be used to raise the post as far as the position indicated in Fig. 2 if desired. To lower the post to closing position the cable 33 is released and slackened thereby lowering post and the weight until the latch 20 drops behind the stop 22.

The fact that most of the weight is at one side of the hinge 18 as shown causes the post to swing readily toward the stop 21.

The forms of the-parts can be changed without departing from the gist of the invention as claimed. What I claim is:

provided with a pulley atits upper portion, a sliding weight on the post, a latch carried by said weight, a cable attached to said weight and, passed over said pulley, a second cable connected with the lower end of the post and slippingly engaging the free end of said first named cable and a stop engaged by said latch when the post is in closed position.

2. In combination with a swinging post provided with a pulley at its upper portion, a sliding weight on the post, a latch carried by said weight and pivoted to the weight to swing on a short are intersecting a line substantially at right angles to the post, substantially at right angles to the post, a 10 means for raising said post and for raising cable attached to mid weight and passed said weight and a stop engaged by said latch over mid pulley, a second cable connected when the post is inclosed position. with the lower end of the post and slip- 5 3. In combination with a swinging post pingly engaging the free end of said first provided with a pulley at its upper portion named ca le, and a stop engaged by said 15 a sliding weight on the post, a latch carrie latch when the post is in closed position. by said weight and pivoted to the weight to swing on a short are interseding a line RALPH H. GREEGOR.

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