US1636549A

US1636549A - Doorcheck

Info

Publication number: US1636549A
Application number: US746499A
Authority: US
Inventors: Brown Max
Original assignee: BROWN DOOR CHECK CO Inc
Current assignee: BROWN DOOR CHECK CO Inc; BROWN DOOR-CHECK Co Inc
Priority date: 1924-10-29
Filing date: 1924-10-29
Publication date: 1927-07-19
Anticipated expiration: 1944-07-19

Description

July 19, i927.

M. BROWN DOOR CHECK Filed Oct. 29, 1924 INVENTOR ATTORNEYS Patented July 19, 1927.

UNITED sTATEs PATENT; OFFICE.

max BROWN, or" NEW YORK, N. Y.-, ASSIGNOR TO THE BROWN DOOR-CHECK o0. INC.,

A CORPORATION o'F'NEw YORK.

Application filed October 29, 1924. Serial- No. 746,499.

My invention relates to improvements in door-checks vparticularly adapted for interior or domestic use. To this end it is designed to be used either on polished or carpeted floors.

It has'for its main object to provide meanswhich, while permitting the partial opening of a door to allow inspection of the person seeking entrance, will positively stop it againstenlarged opening, and so protect the occupant against forced or stealthy intrusion.- i

Another object of the invention is the provision of a simple but effective door-check designed to permit a door to be opened to a predetermined degree, and there held against further opening until released from engagement with the floor.

Another object is the production of a door-check with a minimum of parts, one which is cheap and durable and always ready for use, and which can be easily mounted in place, and readily adjusted to operative and inoperative positions.

Further objects and advantages will appear from the following description and claims, taken in connection with the accompanying drawings forming part hereof.

Referring to the drawings, Figure 1 is a perspective view of apartly opened door with my door-check applied thereto, and showing the check operating to prevent further opening of the door; Fig. 2 is a side view showing the door-check in position ready for use; and Fig. 3 is an elevation of the check in operated position, together with its related parts, attached to a section of door.

Similar numerals of reference refer to corresponding parts in the different figures.

In the drawings the numeral 1 designates a partly opened door to which my improved device has been attached. This device comprises a plate 2 mounted on the door in any suitable way. Extending from the plate 2,

and preferably integral therewith, as a channelled projection 3 in which is movably mounted by means of a pivot 4, one end of a bar 5, the other end of which bar 1s pivotally mounted in a similar w ay, by means of pivot 6, between the pro ections 7 on rocker member 8. The projections 7 are mounted eccentrically on the member 8 for the purpose hrreinafter explained.

To the curved surface 9 of the rocker member. is v preferably. attached a rubber covering which may be smooth, or be provided with suction cups, or with the corruga'tions 10 illustrated in Fig. 2, the reason for which will be explained hereafter. In the form shown in the drawings this rubber covering extends to the points 11 of the rocker member, and is held in place between the plane surfaces 12mm 13 of the rocker member by the screws shown. ,Above the plate 2, and on a line therew th, a spring clip" 14- is mounted, which grasps and holds the bar 5 when it is desired to place the check in inoperative position by swinging it from engagement with the floor. In Fig. 2 it is shown in dotted lines elevated to such inoperative position.- The operation of by device is evident. When mounted on a door and in operative position, as shown in Fig. 2, the opening of the door will cause the bar 5, mounted eccentrically on the rocker member, to depress one end of the rocker member and raise its opposite end until the latter contacts with the said bar, as illustrated in Fig. 1. This will check the door at that point, and effectually prevent its further opening. Continued efforts to open the door will result in forcing the rocker member into firmer engagement with the floor and bar, and as its curved surface is preferably covered with a corrugated or suction rubber mat, the friction and suction combined will make it impossible to force the door open.

It will be seen from the foregoing that I have devised a door-check which contributes materially to the safety of its users, and makes it impossible for an intruder to enter through an unlocked door either by force or stealth. It is preferably made of metal, and its construction is such that continued efforts to enlarge the opening of the door to which it is attached, only operate to defeat their purpose by forcing the rocker, member into closer engagement with the floor and bar.

While I have described the preferred embodiment of my invention do not wish to be limited thereto, as it is evident that various changes might be made therein without departing from the spirit of m invention. For instance, the rocker mem er may be made in one piece, and the rubber fastened to its curved surface in any way desired, or the bar may be pivoted to the door plate and rocker member in any way, and not necessarily by the use of' channelled members, and other minor changes made within the scope of the claims appended hereto. Q

What I claim as new and desire tosecure by Letters Patent, is:

1. In a door check, a plate for attachment to a door, a rocker member having projections.thereon, a bar pi-votally' connected to said plate at one end, its opposite end being so mounted pivotally between the said" projections on the rocker member that in operation the inner end of the rocker member is adapted to contact with the bar some distance from the pivoted end thereof.

'2. In adoor check, a plate for attachment to a door, a" rocker member with aconvex fioor-engaging surface and provided with projections, a bar pivotally connected to the plate and rocker member, its pivotal connection to thev rocker member between said projections being such that the said member .engaging surface, a bar adapted for up and down movement pivotally connected to the plate and rocker member, its connection to the rocker member preventing the end of the bar from at any time contacting with the rocker member, the rocker member having a rubber mat attached thereto, the operation of the door check being such that the depression of one end of the rocker memberiwilla cause the opposite end thereof to engage said bar some distance from the end thereof, and:

means for holding the-door check in inopera tive position, substantially as described.

In testimony whereof, I have signed my name to this specification.

MAX BROWN.