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Publication numberUS1242067 A
Publication typeGrant
Publication dateOct 2, 1917
Filing dateApr 23, 1915
Priority dateApr 23, 1915
Publication numberUS 1242067 A, US 1242067A, US-A-1242067, US1242067 A, US1242067A
InventorsCharles F Stiglitz
Original AssigneeDaniel R Stiglitz, Charles F Stiglitz
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Door for coal-chutes.
US 1242067 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)


' A PPLICATION FILED APR.23. I915. 1,242,067, Patented Oct. 2,1917.


- /6 1 Fia- 1 a INVENTOH C. F. STIGLITZ.


APPLICATION FILED APR.23,1915- Patented 00:. 2,1917.

2 SHEETSSHEET 2 A T TOR/V5 Y 'nnir s'ra rs "a CHARLES F. S'IIIGLITZ, on LOUISVILLE, KENTUCKY, Assienon on oNE-IIA F'ro DANIEL n. s'rieri rz, or Lo IsvrLLn, KENTUCKY. l

noon non coAL-cHUTEs,


T 0 v all to ham it may concern:

Be it known that I, CHARLES F, STIGLITZ,

a citizen of the United States, residing in the cityof Louisville, county ofJefferson, and State of Kentucky, have invented a certain new and useful Improvement in Doors for Coal-Chutes, of which the following is a specification. j

Thisinvention relates to doors for coal chutes with special reference to that class of chutes placed in the walls of residences to facilitate the deposit of coal in the cellars or basements thereof. 7

An object is the provision of a door, of the class described, the operative connections whereof lie within thev chute, hence the working thereof will not be interfered with by conditions of the weather such as,

11 hinge lugs on the exterior, the lugs may be readily broken off with a hammer and access thus afforded to the interior of the house.

A further object is the provision of a door which will be economical in construction, easy of installation and durable in service.

With the foregoing and other objects in view, the invention consists of the novel arrangement and construction'of parts illustrated in the accompanying drawing which forms a part of this specification, wherein is set forth an embodiment of the invention, but it is to be understood that such changes and modifications may be resorted to as come within the scope of the appended claims.

In the drawing wherein similar reference characters designate like parts in the several views Figure 1, is a front elevation of a coal chute with an embodiment of my invention applied thereto showing the door closed;

Fig. 2, a rear elevation of the same showing the door open;

Fig. 3, a vertical Fig. 1.

Fig. Fig. 2.

Fig- 5, a perspective view of the hinge member. 7

Fig 6, a perspective of a modified form of a hinge member.

section on line 1-1 of 4, a vertical section on line 2-2 of Specification of Letters Patent.

I Patented Oct. 2,1917;

Application filed April 23, 1915. Serial No. 23,280.

nates a chute, usually of quadrangular shape, adapted to be built in the wall of a building. It may be formedof any suitable material though preferably sheet iron. is

used as it may readily be bent to form the walls. Secured to the front end of the chute,

surrounding the mouth thereof, is a frame,.- A door ,13- fits in theframe, normally closing the mouth of. the

. chute. Arms'1 1-, 15 pivotally connected,

respectively with the doorand with a wall of the chute, adjacent the front end thereof,

provide means whereby thedoor may be swungfromthe closed to the open position, i and conversely, the door at all'times occu-. 1

pying planes substantially parallel with, that in which it lies when closed. As illustrated, the door swings'forward, upward and backward to a position abovethe'mouth of the chute where itis supported by suitable means, such as a lug 16 which projects forward from the frame'12. The arms 14L,

15 be connected with the door and the chute in any suitable manner which will permit a relative pivotal or swinging movement thereof. As illustrated lateral projections 17- on the lower, or outer ends of the arms 14 and 15, are engaged in perforations 18 in lugs -19- which project from the inner surface of the door intermediate the extent thereof. The inner ends of the arms are connected, or united, by an integral transverse member 20 and are positioned on the upper wall'of the chute adjacent the forward end thereof by means of clips -21. The arms 14:, 15 are each provided near their inner ends with a recessed, or curved portion 22 adapted to fit about, or receive the frame, when the door is swung open, permitting the rectilinear portions of the arms to assume a position substantially parallel with the face of the frame.

It will be observed with the construction described that the door will be retained in a closed position by its own weight. To prevent the door from being forcibly opened from the outside a lug 24- is pro vided 0n the lower edge of the door which is adapted to engage behind the frame when the door is closed. A spring latch 25 positioned on the inner surface of the door,

near the upper edge thereof, is adapted to engage behind the frame, when the door is closed, whereby the door is securely held in the open position against any attempt at forcible entry from the outside. To open the door the latch is first released from the interior; a handle 26 on the outer face of the door is grasped and the upper edge of the door is swung out slightly, in order that the latch may clear the frame; the door is then lifted, the arms 14, 15 causing it to first swing forward, then as the arms pass the horizontal, backward until the lower edge of the door is just above the lug 16, projecting from the frame, when the lower edge is swung slightly rearward and thedoor lowered until it engages with the lug whereby it is held. A hopper comprising triangular sides 27 and a connecting base 28 is swung from pivots 29 in the side walls of the chute adjacent the top of the mouth thereof and is adapted to be drawn out when the door is opened. De pending projections 30 on the rear edge of the base are adapted to be engaged with the frame and hold the hopper in an extended position. The sides 27 are provided with slotted bearings -31 which are engaged over the pivots 29 and which permit the hopper to be raised to allow the projections 30 to clear the frame in swinging it in and out ofthe chute. 7

Having thus described my invention so portion fitting about the inner edge of the frame whereby the rectilinear portion may extend above the frame exterior thereof in a plane substantially parallel with the face of the frame, a door to the inner surface of which the outer end of said arm is pivotally" connected, and a lug projecting from the frame above the doorway whereo'n the lower edge of the door may be rested to hold it in its elevated or open position.

2. In combination, a vertically disposed door frame, a door adapted to close the opening therein, a lateral projection'from the face of the frame immediately above the opening, arms pivotally connected respectively to the inner side of the door and to the interior of the frame at the upper portion thereof, said arms having a curved portion adapted to fit about the edge of the doorway whereby the door may be swung to a position above the doorway with its lower edge supported on said lateral projection, in which position the door is substantially parallel to the position which it occupies when closed.


Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. r

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4928858 *Apr 22, 1988May 29, 1990Massey-Ferguson Services N.V.Metering device for seed or fertilizer
U.S. Classification49/253, 49/394, 49/70
Cooperative ClassificationE05D15/30, E06B3/40