US832603A - Door holder, check, and closer. - Google Patents

Description

No. 832,603. I PATENTED OCT. 9, 1906. J. C. FRITTS.

DOOR HOLDER, CHECK, AND CLOSER.

APPLICATION FILED MAR.'I.1906.

v ,2 SHEETS-SHEET 1 witmeooco awbewtpz JCEW T/L No. 832,603. PATENTED 0016,1906.

- J. 0. FRITTS.

DOOR HOLDER, CHECK, AND CLOSER.

APPLICATION FILED MAR.7. 1906.

2 SHEETS-SHEET 2.

UN ITED I PATENT OFFICE.

Specification of Letters Patent. Application filed March 7, 1906. Serial Ila-304.619.

Patented Oct. 9, 1906.

1'0 all whom it mag concern:

Be it known that I, JAMEs O. FRITTS, a

citizen of the United States, residing at-Newark, Essex county, State of New Jersey, have invented certain new and useful Im rovements in Door Holders, Checks, and O osers,

of which the following is a full, clear, and ex act description.

My invention relates to a mechanism adapted to serve the combined purposes of a door holder, check, and closer.

The object of the invention is to provide a simple construction for accomplishing the functions of holding a door closed or open and checking its opening or closing move-.

ment. I have endeavored to avoid the use of-numerous or complicated parts, so that the construction may be manufactured economically and readily set up or adjusted and which will not be likely to get out of order.

The form illustrated in the accompanying drawings and described in the following specification is particularly adapted to use on doors of railway-cars. It will be obvious, however, that the construction is not limited to such use.

Figure 1 is a plan view of mechanism embodying the improvements of my invention with the door in closed position. Fig. 2 is a like view of the mechanism with the *door open. Fig. 3 is a front view of the mechanism with the parts in the closed position. Fig. 4 isa detail view of the spring device. Fig. 5 is a plan view of another construction embodying my invention.

1 indicates the door, which is hinged to the door frame or casing at 2.

3 is one of the levers, ivoted at 4 to the bracket 5, which is attac edto the door. 6 is the other lever, which is pivoted at 7 to the bracket 8, which is attached to the door-casing. The two levers 3 and 6 are pivotally connected together at 9. The lever 3 has a projection 10, and the lever 6 has a projection 11, to which the. opposite ends of the spring device 12 are attached at points 13 and 14. In the preferred form this s ring device is made up of a coiled spring p aced under compression between the cap- pieces 15 and 16. The rods 17 and 18 are attached, res ectively, to the cap- pieces 16 and 15, and sac of said rods passes freely through the respective op The head of t e rod 18 is referably slotted and connectedto the T-s aped pivot-post 14. The end of the rod 17 is threaded and osite cap-pieces 15 and 16.v

passes through the 0st 19 on the extension 10. The tension 0 the spring is regulated by means of the adjusting-nut 21 and washer 20 on the projecting screw-threaded end of the rod 17 and bearing against the outer face of the post 19. The rod 18 may be readily connected to the extension 11 by meansof a T-and-slot construction.

When the door is closed, the end of the extension 1 1 preferably rests against the yield 23 may be provided for f ing stop 22. A stop the door in its opened position. Thespiing device holds the door in either position by reason of the relative osition and proportions of the parts. n the modification shown in Fig. 5 it is obvious that the spring device might consist simply of a coiled spring having its opposite ends attached at the points 13 and 14 and placed under tension instead of compression/as in the other form of device shown. The compression form is preferred, however, as it is more durable.

In all positions of the door and mechanism the distances between the points 2 and 4, 2

and 7 4" and 9, and 7 and 9 are fixed. The

lines connecting the points 2, 4, 9, 7, and .2

present a quadrilateral when the door is o ened to stand, for instance, at a right ang e to the lintel of the door and lie in nearly a 7 straight linewhen the door is closed, the

point 4, however, having passed inside of the ine connecting the points 2 and 9. When the door is opened, the action of the s ring device is to draw the point 14 towar the point 13. The result is a pressure which holds the door a ainst the stop 23. As the door is closed a cad-point is reached when the oints 13, 9, and 14 are in alinement. At t 's point there is no effective pressure of the'spring, so that the door is checked in its movement, toward the closing osition. As the door asses by this chec 'ng positio into the c osed position the point 14 passrs inside the line connecting the points 13 and 9, so that the action of the spring is to draw the point '14 toward the door-casing. The effective pressure of the spring for this closing action, however, decreases, as the door reaches its closed position, since the points 13 and 4 again approach each other, but on the inside of the center line. This has atendency to draw the oint 4 inside the line of points2 and 7 and c oses the door. When the door is closed, the spring is expanded and resistance to the ening of the door. When the door is open, t e spring is also expanded and under little pressure, but exerts its pressure at the most efiective angle, so that the door is held securely against the stop 23.

What I claim is 1. A combined door holder, check and closer comprising two levers adapted to be respectively connected to adoor and to the casing, a common pivotal connection for said levers, an extension from each lever beyond the line connecting its two pivot ends and a sprln device connecting sa1d extensions.

2'. n a combined doorholder, check and closer, two levers of unequal length pivotally connected to ether and adapted respectively to be pivotalfi connected to a door and doorcasingand a spring device connected to each of said levers at points on opposite sides of said levers when the parts are in the closed position.

3. In a'device of the character described,

. two bracketsadapted to be respectively atta'ched to a door and door-casing, a lever pivoted to each of saidbrackets, a common pivotal-conne'ction for said levers, and a spring device-connected with said door-lever at one sideof theline joining its pivoted ends, and

ever, at one sideof'the extension of the line joining its ivotedcenters.

5. In a evice of the character described,

brackets adapted to be respectively attached to'a door and door cas levers pivoted to said'brackets and pivote to each otherfand a compression-spring device connecting said levers comprising a pair of caps, a coiled spring, the ends of said spring abutting against-said" caps, and a air of-rods, each of said rods'passing throng one cap and, being secured to the opposite cap.

'6. In'a device'of he-character described,

I brackets adapted to be secured to a door and larldisposed extensions provided with vertlca ly-dlsposed posts a spring device conrespectively, levers pivoted 'thereto'an' to each other and having angunecting said posts and a spring adjusting member com rising an arm projectingthrough one oi said posts and an adjustingnut for said arm. v

7. In a construction of the character described, a'door-casing, a hinged door, a lever pivoted to said casing, a longer lever pivoted to said door between the polnt of support of said first lever and the axis of the door when the parts are in the closed position, said levers being pivoted together and a spring device connectingsaid levers.

8. In a construction of the character described, a door-casing, a hinged door, a lever pivoted to said casing, a longer'lever'pivoted to said door between the o1nt of support of said first lever and the axis of the door when the'parts are in the closed position, said-levers being pivoted together and a spring device connecting said levers, one of said levers having an extension and a stop ad-a ted to be enga is entirely closed.

9. In a .do0rcl0ser, two levers adapted to be (pivotallyconnected respectively to a door an door-casing, said levers being pivoted together and each having a vertical post disposed eccentrically of the common-pivot and a coiled'spring having its opposite ends connected to saidposts.

ed by said extension before t e door 10. In a construction of-the character'd'escribed, the combination of a door-casing, a

hinged door, two levers of unequal length pivotally connected together, the shorter lever being connected to the door-casing, the

other lever being connected to the door between the -door-casing connection and the door-hinge, an extension carried by one of said levers, and a spring normally holding said levers with said extension 1n engage-' inent with the door-casing.

11. In a door-closer, a pair of levers pivotally connected together and pivotally con-- nected to a door and doorcasing respectively, and a horizontally-disposed compression-spring device connecting said levers.

12. In a door-closer, a pair of levels pivotally connected together and pivotally con nected to a door and door-casing respectively, a horizontally disposedcompressionspring device connecting said levers, and

means for'adjusting the compression of said spring device. 7

JAMES C. FRITTS- Witnesses:

: L. VREELAND,

Ro'nr. S. ALLYN.

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