US487163A

US487163A - Ventilated car-door

Info

Publication number: US487163A
Authority: US
Publication date: 1892-11-29
Anticipated expiration: 1909-11-29

Description

(No Model.)

No. 487,163. Patented Nov. 29, 1892.

' 1f ??fA gigi" UNITED STATES PATENT OFFICE.V

JOHN L. STAGG AND CHARLES W. FENN, OF CHICAGO, ILLINOIS, AND

CHARLES T. SCHOEN, OF ALLEGHENY, PENNSYLVANIA.

VENTILATED CAR-DOOR.

SPECIFICATION forming part of Letters Patent No. 487,163, dated November 29, 1892. Application filed April 7, 1892. i Serial No. 428,224. (No model.)

To all whom t may concern:

Be it known lthat we, JOHN L. STAGG and CHARLES W. FENN, residing at Chicago, in the county of Cook, in the State of Illinois, and CHARLES T. SoHoEN, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, citizens of the United States, have invented a certain new and useful Improvement in Ventilated Car-Doors, of which the following is a full, clear, and exact description.

The object of this invention is to provide an economical and efficient Ventilating-door principally for use in box or freight cars. In box-cars it is oftentimes necessary to close their openings tight against the admission of air and at other times it is equally necessary to provide for a free circulation of air in them. For economical and other reasons it is desirable to have as few openings in and additions to such and other cars as possible, and so we utilize the necessary doors for ventilation as Well as security, and While we herein show and describe our invention as embodied in a door only, nevertheless We wish to be understood as not thereby restricting the use of its essential features and characteristics to doors, for it is obvious that the ventilators may be applied as well in the sides and ends of cars and elsewhere and in otherobjects as in doors.

In the accompanying drawings, illustrating our invention, in the several figures of which like parts are similarly designated, Figure l is anelevation with one of the hooded plates broken away; and Figs. 2 and 3, sections taken, respectively, in the planes of lines and y y 0f Fig. 1.

We prefer to construct our door with stiles a, three rails b, and mullions c, so as to provide four panels; but of course we do not limit our invention to such a door; also, We prefer to unite the stiles and rails by jointbolts, as indicated by the dotted lines. In our invention the panels d are ventilators, which may be opened and closed at pleasure. These panels we prefer to construct of steel plate or other wrought metal; but we prefer steelrplate because of its lightness, strength,

and stiffness. We use in each panel a plate e, fixed in between the stile, mullion, and rails adjacent thereto and having the inclined holes are formed by4 slitting the plate andpressing, punching, stamping, or drawing up the hoods, and in order lto straighten and stiffen the plate after such operation of forming the hooded openings we form a bead or rib m around its margin. A gravity-butt-on n is pivoted to the lower edge of the hooded plate. Normally the hooded plate uncovers all the openings. When it is desired to cover the openings, the hooded or sliding plate is raised and its button dropping rests upon the lower edge of the fixed plate and so holds t-he said hooded plate closed. Other means than the gravity-button may be employed for holding up the movable or sliding plate. Each hooded plate is capable of independent operation, and hence the Ventilation may be from the top or bottom or at both points. The hoods are provided to exclude the suns rays, snow, sleet, and rain while freely admitting air. We have shown the fixed plate secured in rabbets in the doors by means of moldings o; but we do not limit our invention thereto. The sliding plate may be arranged to close or open the fixed plate in normal position, and so, also, it may be raised to open the ventilator or to close it, or it may be lowered to open or close it.

1. A Ventilating-door having fixed perforated plates at top and bottom and sliding perforated plates applied to such fixed plates by means of slots and pins and normally having their perforations in register, substantially as described.

2. A Ventilating-door having a series of panels, each composed of a fixed perforated metal plate and a sliding plate applied thereto and supported by it by means of slots and pins and having hooded openings normally registering with the openings in the fixed plate vand adapted to be 'moved to close the openings in the fixed plate and to be held in such closing position, substantially as described.

3. A ventilator having a fixed perforated metal plate and a sliding plate applied thereto and supported by it by means of slots and pins and having hooded perforations and adapted to be moved to open or close the perforations in the xed plates, substantially as described.