US1408174A - Door and operating mechanism therefor - Google Patents

Description

1 0. L. DAUTRICK.

DOOR AND OPERATING MECHANISM THEREFOR.

'Patented Feb. 28, 1922.

0; L. DAUTRICK.

1 DOOR AND OPERATING MECHANISM THEREFOR.

APPLICATION FILED NOV: 18, 1919.

Patented Feb. 28, 1922.

2 SHEETSSHEET 2- awemlfiazzfijc' 9 owm o UNITED STATES PATENT OFFICE.

OWEN I4. DAUTRICK, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF TO FREDERICK M. SUMNER, OF DETROIT, MICHIGAN.

DOOR AND OPERATING ISM THEREFOR.

Specification of Letters Patent.

Patented Feb. 28, 1922.

Application filed November 18, 1919. Serial No. 338,791.

residing at Detroit, in the county of lVayne and State of Michigan, have invented certain new and useful Improvements in Doors and Operating Mechanism T herefor, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to doors and operating mechanism adapted for opening and closing the doors, and has special reference to large doors, other than the hinged or horizontally sliding type, used for closing large doorways.

The primary object of my invention is to provide a rollable or flexible door that may be advantageously used as a garage door, it being constructed so as to be shifted upwardly near the roof or ceiling of the garage and thus occupy a space where the movement of an automobile or other vehicle cannot interfere with the door. It is a well known fact that ordinary hinged doors must be propped open against wind pressure and that there is considerable annoyance and trouble experienced with a garage equipped with such doors.

Another object of this invention is to furnish a rollable or flexible door with a novel operating mechanism by which the door may be easily and quickly opened or closed and positively retained in its adjusted position, the mechanism being located at the inner side of the door and disposed so that the door may positively seal the doorway to exclude the elements and prevent the doorway from being surreptitiously entered.

A further object of this invention is to provide a door and an operating mechanism therefor wherein the parts are constructed with a view of reducing the cost of manufacture and at the same time retain those features by which safety, durability, and ease of operation are secured. With such ends in wow, the invention resides in the novel construction hereinafter described and then claimed.

Reference will now be had to the drawings, wherein- Figure 1 is a horizontal sectional view of a doorway provided with a door and its operating mechanism in accordance with this invention;

Fig. 2 is a view of the inner side of the door and its operating mechanism;

Fig. 3 is a side elevation of the doorway and the operating mechanism supported thereby;

Fig. 4 is a vertical sectional View of a portion of a door in accordance with this invention, and

Fig. 5 is a perspective view of a portion of one of the slats or members adapted to form the door.

In the drawings, the reference numeral 1 denotes the side frames of a doorway 2 and these side frames are provided with guide rails 3 for the vertical side edges of a rollable or foldable door composed of a plurality of articulated transverse slats or members 4, best shown in Figs. 4 and 5. Each slat or member has its longitudinal edges shouldered or chamfered, as at 5 so that adjoining slats or members will have interlocked or lapped connection when all of said slats or members are in a common plane, but the joint between abutting slats or members is such that the door structure may be rolled or shifted at an angle, for instance as indicated by dotted lines in connection with the uppermost slats or members shown in Fig. 4.

Suitably connected to the inner walls of the slats or members 4 are fixed links 6 forming part of chains or flexible members which include links 7 at the joined edges of the slats or members, the links 7 connecting the fixed links 6 so that all of the slats or members will be articulated and the links 7 will permit of the door structure being rolled or shifted with the slats or members separating sufficiently to permit of the door structure being moved at an angle to its vertical plane between the side rails 3. The links 6 and 7 of the chain afford shoulders or abutments 8 and it is against these shoulders or abutments that the teeth 9 of wheels 10 engage. The wheels 10 are disposed in parallelism on a shaft 11 j ournaled in bearings or brackets 12 carried by the side frames 1 of the doorway, and one end of the shaft 11 has a worm wheel 13. 1

That bearing or bracket 12 adjacent the worm wheel 13 is provided with bearings 14 for a shaft 15 disposed in a plane transverse to the shaft 11. On the shaft 15 is a worm 16 meshing with the worm wheel 13 and on the outer end of said shaft is a driven wheel 17 over which is trained an endless chain 18 I danger of the chain buckling or becoming thereof. However, with the mechanism 10- a accidentally displaced. The guide members 20 are somewhat funnel shaped and automatically adjust themselves during the movement of the chain: 18. The chain-18 represents a convenient means of imparting movement to the wheel 15 from a point remote therefrom, it being obvious that the door operating mechanism must be located above the doorway or at such an elevation as not to interfere with the passage of vehicles through the doorway.

From the foregoing, it will be observed that my door provides a very durable structure having an uninterrupted exterior surface and with the edges of the door in the guide rails '3 it is practically impossible to manipulate the door from the outer side cated at the innerside of the door it is possible to quickly raise and lower the door and this is accomplished without much effort on the part of the operator. In some instances the door may be made a rigid structure and or supporting means maintaining the door in such position. Racks and pinions may be substituted for the articulated links and toothed wheels at the door and various kinds of transmission devices can be used at the side of the doorway for revolving the main shaft, therefore we do not care to confine our invention to the precise construction and arrangement of parts shown, other than defined by the appended claims.

What I claim is 1. The combination with a vertical doorway frame, a sectional flexible door slidable vertically therein, chains on the inner side of said door and having links connected to the door sections, wheels engaging the links of said chains for controlling the movement of the door, a shaft supporting said wheels at .the upper portion of the door, and means operable at the lower portion of the door for imparting movement to said shaft.

2. The combination set forth in claim 1, whereinthe door sections are articulated by the chains connected thereto.

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

OWEN L. DAUTRICK.

Witnesses:

O. F. BARTHEL, G. E. MCGRANN.

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