US 1711282 A
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W. J. ORR
DOOR HOLDER April 30, 1929.
Filed March 30 1928 N 3 3 M M1 7 9 k 7.
// ATTORNEYSTL Patented Apr. 30, 1929.
UNITED STATES PATENT OFFICE.
WILLIAM J O-RRyOF WILMINGTON, DELAWARE.
Application filed March 30, 1928. Serial No. 26 5,872.
My invention relates to a new and useful door stop whereby a door may be retained in the opened position or it maybe releasedto be closed at will.
My invention further relates to a door stop tained in the open position only when sufficiently opened to permit of the engagement of the fastening hook with the lug or other anchoring means wherever the latter happened to be. positioned. Furthermore, the lug formed an obstruction over which persons stumbled and which interfered with .the movement or positioning of furniture.
Another expedient resorted to was the employment of means carried by the lower end of the door and adapted to engage the floor at any desired point, to permit of-the opening of the door to any desired extent. This con? struction was disadvantageous in that it tended to damage floors or floor Coverings.
To overcome these disadvantages I have devised means for retaining an open doorin any desired position, withoutin-any way damaging the floor or floor covering .and without obstructing the available floor or vall space near said door.
To the above enls my invention consists of a bracket secured to the top of the door and having a guide hole therein, a bracket secured to the doorjamb or casing and carrying a rod which passes through said guide hole, a cam shaped clamp carried by the bracket on said door and adapted normally to engage said rod, and pendant means for disengaging said clamp or dog from said rod.
. My invention further consists of various other novel features of construction andadvantage hereinafter described and claimed.
For the purpose of illustrating my invention I have shown in the accompanying drawings one form thereof which is at present preferred by me, since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of the instrumentalities as herein shown and described.
In the accompanying drawings 1 Figure 1, represents a side elevation of a door stop embodying my invention shown in the engaging position with the door closed.
Figure 2, represents a front view of Figurev 1.
Figure 3, represents a top plan view of Figure 1.
Figure 4, represents a section on an enlarged scale on line 44: of Figure 3. .7
Figure 5, represents on a small scale a view similar to Figure 1 showing my novel door stopin the disengaging position.
Referring to the drawings in whichlike reference characters indicate like. parts, 1 designates the upper portion or edge of a door to which is secured a bracket 2 by. the screwsor bolts 3. To the horizontal. portion or arm 4 of the bracket2 is secured the vertical carriage 5 in the upper portion 6 of which is fulcrumed the clamp 7 as at 8. To the door head 9 is secured the bracket 10 by the screws or bolts 11. A horizontally pro- 'j'ecting rod 12 is hinged to the horizontal for wardly projecting arm 13 of the bracket 10 by a universal ball and socket jointld and 4. The dog or clamp 7 is cam shaped and is provided with the lower curved serrated edge 16 which terminates in the rear substantially right angle edge or corner portion 17. A spring 18 is secured'to the clamp Tat 19 and to the carriage 5 at 20. The clamp 7 is provided. with an offset terminal portion 21 to which is secured the upper end of the pendant rod 22 or its equivalentas by the eye 23 or in any other suitable manner. The upper surface or edge of the rod 12 is preferably serrated asat 24:. The carriage 5 is secured to the arm 4 by a swivel joint 26, so that as the door opens and the rod 12 slides through the hole in the carriage 5 the latter will turn or revolve about its axis to prevent. jamming or binding, as will be apparent from Figures 1, 4 and 5. 27 designates a stop to limit the downward movement of-the bent portion 21 of the dog or clamp 7 when the rod 22'is pulled. down thus preventing the excessive distortion Of the spring 18 and serving to retain the clamp 7 in a position from which it can be sprungfrom'the position it occupies in Figure 5 to that it occupies in Figure 1, by merely pushing the rod 22 upwardly in the manner above set forth.
The operation is as follows WVhen the door 1 is opened, the carriage 5, having the hole 15 through which passes the rod 12, slides over said rod in the direction of the arrow seen in Figure 1. When the door has been sufiiciently opened, it is retained in that position since the right angled edge or corner 17 of the clamp 7 frictionally engages the upper surface of the rod 12 and prevents the sliding of the carriage 5 over said rod in the reverse or closing direction. When it is desired to close the door, the rod 22 is pulled down thus disengaging the corner 17 of the clamp 7 from the rod 12, which permits the carriage 5 to slide upon the rod 12 in the reverse direction to permit of the closing of the door. The spring 18 is secured to the carriage 5 and the clamp 7 at such points as to permit said spring to retain said clamp in the engaging position shown in Figure 1 or in the disengaging position shown in Figure 5. Thus when the rod 22 is pulled down to disengage the clamp 7 from the rod 12, the spring 18 assumes a position to one side of the fulcrum point 8 and keeps the bent portion 21 of the clamp 7 in its lower position and the clamp 7 is disengaged from the rod 12, as will be understood from Figure 5. In this position the door can be moved in both directions, that is, opened or closed at will. When it is desired to keep the door opened, the rod 22 is pushed upwardly thus raising the bent portion 21 and lowering the clamp 7 into engagement with the rod 12. lie-spring 18 now assumes a position on the other side of the fulcrum point 8 and serves to retain the clamp 7 in engagement with the rod 12 as will be understood from Figure 1. In this position the door can be moved in but one direction, that is, it can be opened only but not closed.
It will thus be apparent that I utilize the principle of an eccentric cam surface 16 which engages the rod 12 and which while engaging said rod permits the opening but not the closing of the door and which when disengaged from said rod permits of the movement of the door in both directions. I further employ a spring or its equivalent which is adapted to assume positions on either side of the fulcrum point of the clamp with which it coacts, to retain said clamp in its engaging or disengaging position at will.
It will further be seen that by my novel device it is merely necessary to push the rod 22 upwardly to bring the clamp 7 into engagement with the rod 12 in which position the door can be opened to any desired extent and whereby the door will be retained in that particular position automatically and without further attention. When it is desired to close the door, therod 22 is pulled down thus disengaging the clamp 7 from the rod 12 whereupon the door can be closed in the usual manner.
By my novel device the floor or floor covering is not in any way damaged and the floor or wall space near the door is unobstructed. It is further to be understood that my novel device is equally applicable to doors provided with conventional checks, which prevent slamming of the door, since the principal object of my invention is to retain a door opened to any desired extent and to permit of the closing of the door in any desired manner and whenever desired.
While in my drawings I have illustrated the lower edge 16 of the clamp 7 and the upper edge 24: of the rod 12 as being toothed or serrated, it is to be understood that my novel door stop will operate with equal. efliciency without the use of teeth or serrations since the eccentric mounting of the clamp 7 serves to urge the corner edge 17 thereof against the rod 12, when the clamp is in the posit-ion seen in .Fig. 1 thus frictionally engaging said rod and preventing the closing of the door.
It will be apparent that while I have described my invention as being applicable to doors, it is equally applicable to windows,
transsoms, Windshields, traps, trap-doors,
and to any kind of a closure for an aperture used for ventilation, as is evident.
I am aware that the invention may be embodied in other specific forms without departin from the spirit or essential attributes thereof, and I therefore desire the present embodiment to be considered in all respects as illustrative and not restrictive, reference being had to'the appended claims rather than to the foregoing description to indicate the scope of the invention.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is
1. In a device of the character stated, the combination of a rod, a pivotal support for the inner end thereof, a carriage having a guide hole therein through which said rod passes, an arm supporting said carriage, a dog ecentrically mounted in said carriage and a spring common to said dog and carriage adapted to urge said dog against or away from said rod.
2. In a device of the character stated, the combination of a rod, a pivotal support for the inner end thereof, a carriage having guide hole therein through which said rod passes, an arm supporting said carriage, a dog eccentrically mounted in said carriage, a spring common to said dog and carriage and adapted to urge said dogagainst or away from said rod, an offset terminal for said dog and means-connected to said offset terminal for actuating said dog. I
.8. In a device of the characterstated, the combination of a rod, a pivotal support for the inner end thereof, a carriage having a guide hole therein through which said rod passes, a swivel support for said carriage, a dog eccentrically mounted in said carriage, an offset terminal for actuating said dog towards and away from said rod, a stop for limiting the movement of said dog and a spring common to said dog and said carriage adapted to retain said dog in its extreme positions.
4. In a device of the character stated, the combination of a carriage adapted to be carried by a door, and having a guide hole therein, a horizontally disposed rod adapted to be pivoted to a fixed point in proximity to said door and passing through said guide hole, an eccentric clamp carried by said carriage and adapted to engage the upper edge 01": said rod to prevent the closing of said door when the latter has been opened and to permit the opening of the door When the latter is closed, means for disengaging said clamp from said rod to permit the closing of said door and tensioning means for retaining said clamp in its engaging or disengaging positions.
WILLIAM J. ORR,