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Publication numberUS823372 A
Publication typeGrant
Publication dateJun 12, 1906
Filing dateFeb 23, 1906
Priority dateFeb 23, 1906
Publication numberUS 823372 A, US 823372A, US-A-823372, US823372 A, US823372A
InventorsSturley T Stevens, Orval Walcott
Original AssigneeSturley T Stevens, Orval Walcott
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 823372 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)



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.




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US2700524 *Jun 22, 1951Jan 25, 1955Ritter Co IncCounterbalanced supporting arm
US2828806 *Dec 27, 1955Apr 1, 1958Chrysler CorpLatchable tilting seat back
US3153255 *Apr 17, 1962Oct 20, 1964IbmTorsion rod cover support
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US4832067 *Aug 13, 1987May 23, 1989Josef FelberWeather protective roofing for light aircraft
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US5931415 *May 9, 1997Aug 3, 1999The Boeing CompanyPlug-type overwing emergency exit door assembly
US6276027Jun 18, 1999Aug 21, 2001Bobrick Washroom Equipment, Inc.Swing-up grab bar
US6446307Feb 22, 1999Sep 10, 2002Electromechanical Research Laboratories, Inc.Manway lid lifter
US7779508 *Aug 24, 2010Hardesty Bryan ARefrigerator door closer and method
US20060236610 *Apr 22, 2005Oct 26, 2006East Jordan Iron Works, Inc.Cast hatch with lift assist
US20080078052 *Oct 2, 2006Apr 3, 2008Hardesty Bryan ARefrigerator door closer and method
US20100270813 *Jun 4, 2008Oct 28, 2010Roth Dipl-Ing FranzMethod and arrangement for fully automatic function checking of internal combustion engines
USRE29925 *Jan 23, 1978Mar 6, 1979 Vehicle door latch
Cooperative ClassificationE05F3/16