|Publication number||US823372 A|
|Publication date||Jun 12, 1906|
|Filing date||Feb 23, 1906|
|Priority date||Feb 23, 1906|
|Publication number||US 823372 A, US 823372A, US-A-823372, US823372 A, US823372A|
|Inventors||Sturley T Stevens, Orval Walcott|
|Original Assignee||Sturley T Stevens, Orval Walcott|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (18), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
PATENTED JUNE 12, 1906. S. T. STEVENS 8: 0. WALGOTT.
APPLICATION FILED r1113. 23. 1906.
1 15. E ,9 1 it 0 a? y E UNITED STATES PATENT OFFICE.
Specification of Letters Patent. I
Application filed February 23,1906. Serial No- 302,448.
Patented June 12, 1906.
To all whom it may concern:
Be it known that we, STURLEY T. STEVENS and ORVAL WALooTT, citizens of the United States, residing at Comstock, in the county of Custer and State of Nebraska, have invented certain new and useful Im rovements in Door-Openers and we do dec are the following to be a full, clear, and exact description of the invention, such as .will enable others skilled in the art to which it appertains to make and use the same. a
Our invention is an improved door-opener which may also be used as a door-closer and for cellar-doors to partially counteract the weight thereof, and may be also used for raising or partly counteracting the Weight of lids of heavy chests, trunks, and the like; and it consists in the construction, combination, and arrangement of devices hereinafter described and claimed. 1
In the accompanying drawings, Figure 1 is a perspective view of a door-closer embodymg my improvements, showing also a portion of a door frame or casing and a portion of a door on which the opener is used. Fig. 2 is partly an elevation and partly a sectional view of the same.
On one side of the door A, near the hinge side thereof, is secured a guide 1, which may be of angle metal and is formed at its inner end with a stop 2. To the door-jainb B are secured a pair of brackets 3, each of which has an arm 4, provided with an opening forming a bearing for one arm 5 of a right-angled member 6, the arm 7 of which is provided with a roller 8, which operates on the flange 9 of the guide 1. On the outer end of the arm 5 of the right-angledmember 6 is a'sleeve 19, which is formed of a piece of sheet metal bent into tubular form and provided at its opposing edges with projections 10 11, the former being formed with an eye 12, in which is secured one end of a spring 13, the said spring being coiled on the arm 5 of the member 6, its opposite end being engaged with one of the brackets, as shown. The arm 5 has a transverse opening, and the sleeve has a number of openings 15, any one of which may be brought into alinement with the opening in said arm, and the pin 16 is then inserted in said alined openings to secure the sleeve to the said arm 5. The action of the spring tends to move the member 6 in one direction to impart partial rotary movement to its arm. 7 an cause said arm, by reason 'of the engagement of its roller 8 with the guide 1, to 0 en the door. When the door is opened to t e desired extent, the roller or tappet member of the arm 7 engages the stop 2 of the guide, said stop, tappet member, member 6, and spring coacting to hold the door in such opened osition.
It Wil be understood that by appro riately mounting our door-opening devices t e same may be employed for closing a door after it has been opened, and it is obvious that our door-opening devices may be used for artially lifting cellar-doors and the lids of hea chests, trunks, and other articles.
From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily iinderstood without requiring a more extended explanation.
Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of the invention as defined in the appended claim.
Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is
A door-opener comprising bearing-brackets, a right-angled member having one arm journaled in the bearing-brackets, a sleeve detachably securedto and longitudinally adjustable on said arm, a. coil-spring on said arm, having one end attached to said sleeve and the other end engaged with one of said brackets, a tappet on the other arm of the right-angled member, and a guide for engagement by the tappet and having a stop to coact therewith, for the purpose set forth.
In testimony whereof we have hereunto set our hands in presence oftwo subscribing witnesses.
STURLEY T. STEVENS. ORVAL WALCOTT. Witnesses:
J. A. BUTLER,
THOMAS S. J AOKSON.
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