US2385590A - Door or gate gloser - Google Patents

Description

Sept. 25, 1945. Bfs rRdsNmER I 238 5 DOOR OR GATE CLOSER Filed Sept. 1, 1944 2 Sheets-Sheet 1 Inventor I Sept. 25, 1945.

B STROSNIDER DOOR OR GATE CLOSER Fil ed' Sept. 1, 1944 2 Sheets- Sheet 2 M \N Q Inventor 52m} fr0J/7 cZer B a a Attorneys Patented Sept. 25, 1945 DOOR R GATE CLOSER Bush Strosnider, Ashland, Ky.

Application September 1, 1944, Serial No. 552,272

1 Claim.

My invention relates to door, or gate, closers of the type forming the subject matter of my U. S. Letters Patent No. 2,343,817, dated March 7, 1944, and over which the instant invention is designed as an improvement.

The primary object of the instant invention is to simplify the structure disclosed by said patent and reduce the cost of manufacture without impairing efficiency in operation.

Other an subordinate objects are also comprehended by my invention, all of which, together with the precise nature of my improvements, will be readily understood when the succeeding'description and claims are read with reference to the drawings accompanying and forming part of this specification.

In said drawings:

Figure 1 is a view in front elevation illustrating my improved door, or gate, closer applied to a door,

Figure 2 is a view in longitudinal section taken on the line 2-2 of Figure 1,

Figure 3 is a view in vertical section taken on the line 33 of Figure l and drawn to an enlarged scale,

Figure 4 is a similar view taken on the line 4-4 of Figure 1, and

Figure 5 is a similar view taken on the line 5-5 of Figure 2 and drawn to an enlarged scale.

Referring to the drawings by numerals, my improved closer has been shown therein as applied to a wall I having a door 2 hinged thereto, as at 3.

According to my invention, a bracket 4 of U shape in cross section and embodying a back web 5 and right angled upper and lower edge flanges 6 on said web is attached to the wall I adjacent the hinged edge of the door 2 by means of a back plate 1 to which the web 5 is pivoted, as at 8, centrally of the plate and web, the back plate being fixed to the wall by screws as at Be.

An elongated, channel-type, door-closing lever 9 fitting at one end between the flanges 6, channel side outermost, is pivoted at one end, as at It, to said bracket at the side of the bracket nearest the door 2 and so as to swing about a vertical axis in opposite directions into dooropening and closing positions respectively. The other, or free, end portion of the lever 9 is slidably interposed between a pair of guide flanges II of a bracket l2, similar to the bracket 4, and which is similarly secured to the door 2 by screws, as at [3, at a suitable distance from the hinged edge of the door 2 for a purpose presently seen. The lever 9 is adapted to ride on and bear against an upright roller l4 suitably mounted in the bracket I2 by a pintle [5 extending through the flanges ll of said bracket l2. The bracket [2 is provided with a front upright keeper wall I2a for preventing the free end of the lever 9 from being pulled out of said bracket. The lever 9 is yieldingly urged towar the door 2 and against the roller I4 by a pair of relatively long and short toggle levers I 6, I1, both of channel form for reinforcing purposes. The long lever I6 includes a forked rear end extension l6a terminating in a pair of laterally spaced disks lBb1 straddling the flanges 6 of the bracket 5 and pivoted thereto by means of a bolt [8 extended through the disks lfib with a wing nut I8a on the upper end thereof. Suitable washers l8b are interposed between the disks I61) and the bolt head and the wing nut I8a respectively. A pair of annular friction brake disks I are interposed between the disks [6b and the flanges 6. A bushing lad is provided on the bolt I8 between the disks 6. The short lever H is pivoted at one end, as at IS, in the other end of the long lever l6 and has its other end pivoted, as at 20, in the lever 9 substantially midway between the ends of the latter. A pair of vertically spaced coil springs 2| connects the joint of the toggle levers l6, H, or, in other words, the pivot pin I9, to the lever 9 close to the pivot ID. A second pair of similarly spaced shorter coil springs 22 connect the lever l1 intermediate its ends to the lever 9 further from the pivot l0. Bolts 23, 24 connect the pairs 0f springs 2|, 22 to the lever 9 and a bolt 25 connects the pair of springs 22 to the lever ii.

The operation of the described invention will be readily understood. The pairs of coil springs 2 I, 22 tend to straighten out the toggle levers I6, I! and at the same time swing said levers and the pivot I0 in the proper direction to cause the lever 9 to swing into door-closing position while bearing against the roller l4 and thereby closing the door The brake disks I80 serve to retard such swinging of the lever 9 and by tightening the wing nut Ida the braking action of the disks [80 may be increased. When the door 2 is opened the toggle levers i6 and i! are swung into increasing angular relation whereby the pairs of springs 2 i, 22 are gradually stretched to impose increased tension against said levers up to a maximum whereby when the door is released it will be closed under the action of gradually decreasing force exerted against the same by said springs through the levers I l and i6. By having the bracket 5 pivoted as by the pivot 8 the bracket and levers may swing to compensate for sag in the door'Z or tilt thereof in opening and closing.

What I claim is:

A closing device for a hinged door comprising a bracket, means for securing said bracket to a fixed part at one side of the doorway, a roller, means for attaching the roller to the door, a door-closing lever pivoted at one end to said bracket to swing in opposite directionsintp doorclosing and ofiehinglposjitionsfrespectively, and

' adapted to bear against said roller; and spring tensioned means for swinging said lever into doolr l thefiatter.

BUSH STROSNIDER.

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