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Publication numberUS878395 A
Publication typeGrant
Publication dateFeb 4, 1908
Filing dateMar 22, 1907
Priority dateMar 22, 1907
Publication numberUS 878395 A, US 878395A, US-A-878395, US878395 A, US878395A
InventorsPaul Ferdinand Holsters
Original AssigneePaul Ferdinand Holsters
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 878395 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

PATENTED FEB. 4, 1908.




Pfllhesses. dig



Specification of Letters Patent.

Patented Feb. 4, 1908.

Application filed March 22. 1907- Serial No. 363.975-

T 0 all whom it may concern:

Be it known that I, PAUL FERDINAND HOLsTERs, a subject of the King of the Belians, residing at 6 Rue de Theatre, Brussels, Felgium, have invented new and useful Improvements in Door-Hangers, of which the following is a specification.

This invention relates to door hangers, and it. consists in the provision of a hanger for sliding doors embodying a grooved member adapted to be secured to the framework of a building, and a device attached to the door and engaging the grooved member, said device consisting of a knob having a cylindrical portion provided with a flattened head, and a base portion forming a dovetailed joint with the grooved member.

The invention consists further in providing means for engaging the flattened portion of the head in order to secure the device permanently in position in the door.

In the accompanying drawings, Figure 1 is a view in side elevation of a door provided with my improved hanger. Fig. 2 is a view in cross section of a portion of the door and framework, showing the hanger applied to the former. Fig. 3 is an elevation of a portion of the grooved member, showing the mannor in which the device on the door engages said member. Fi 4 is a detail view of the groove-engaging device, showing the same from its inner side. Fig. 5 is also a detail view, showing the front of the groove-engaging device.

Referring to the drawings in detail, a represents a door which may be supported at the top by a han er I) having its bearing on a track I. In the drawing I have shown this upper hanger as being of the ordinary construction and secured to one of the upper corners of the door, while the hanger embodying my invention is secured to the door at a point between the upper and lower panels. This arrangement of the hangers is designed to prevent the door from being forced out of its proper position during the operation of opening or closing.

Secured to the framework of the building, and preferably embedded in said framework, is a horizontal grooved track II, having a narrow entrance slot at, and this track is engaged by the inner projecting portion of the hanger, which may be mounted on the door about on a line with the handle 9. It will be noted that the central hanger is adjacent to the inner edge of the door and that the upper hanger is near the opposite edge. This central hanger consists of a main cylindrical portion 2 passing throu h an aperture in the door and provided with a head 11), the sides of which are flattened or cut away. The head is provided with an annular groove 8, and the flattened portion of the head extends only to this groove. A plate q is secured to the side of the door, and is provided with an aperture, approximately circular 'in form, but having straight portions on opposite sides, forming inwardly projecting lugs, as shown in Fig. 5. These lugs engage the annular groove previously referred to, and when the parts are placed in proper relation to each other and the plate is turned through a uarter of a revolution and secured to the oor, the device is in operative position.

Connected with the cylindrical portion 2 is an elongated base portion 1), corresponding in cross section with the grooved member or track II, and engaging the same in such mannor that a substantially dovetailed joint is formed. A flange 3 bears against a countersunk plate 4, and is flush with the inner surface of the door.

From the foregoing description, the operation of the device will be readily understood.

What Iclaim as new and desire to secure by Letters Patent, is:

1. In a device of the character described, a grooved member secured to the frame-Work of the building or other structure, a door, a knob on said door engaging said groove, the knob consisting of a cylindrical shank portion having a flattened head and a base portion forming a dovetail joint with the grooved member, and a locking device bearing against the flattened portion of the head. i

2. In a device of the character described,a grooved member secured to the framework of a building or other structure, said grooved member having a narrowed entrance slot, a door, and a knob on said door engaging said groove, the knob consisting of a cylindrical name to this specification in the presence of shank portion having a iliatteneid head and a tWo subscribing Witnesses. base ortion formin a c ovetai ed joint With T the gEOOVGd Inembe i, and a device bearing PAUL FERDINMD HOLSTERS' 5 against the flattened portion of the head for Witnesses: a holding the knob in position. A. GRAETZ,

In testimony whereof I have signed my OH. DIERICKE.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4588049 *Sep 3, 1985May 13, 1986Inventio AgDouble panel sliding door, especially for elevators
US6247272 *Dec 11, 1998Jun 19, 2001Steelcase Development Inc.Curved door assembly for workstation
US7197904 *Jan 14, 2004Apr 3, 2007Master Lock Company LlcLockout device
US7752876 *Apr 2, 2007Jul 13, 2010Master Lock Company LlcLockout device
US20040159133 *Jan 14, 2004Aug 19, 2004Master Lock CompanyLockout device
Cooperative ClassificationE05D15/0656