US1307216A - Adjustable boob-jamb - Google Patents

Description

C. C. SMITH.

ADJUSTABLE DOOR JAMB. APPLICATION FILED DEC.2, I9I6. RENEWED FEB. 17, I9I9.

Patented June 17, 1919.

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ilNiTED STATES PATENT @FFlQE.

CHARLES 0. SMITH, OF DES MOINES, IOWA.

ADJUSTABLE DOOR-JAMB.

Specification of Letters Patent.

Patented June 17, 1919.

Application filed December 2, 1916, Serial No. 134,570. Renewed February 17, 1919. Serial No. 277,655.

i To all whom z'tmay concern:

Be it known that 1, CHARLES C. SMITH, a citizen of the United States, and resident of Des Moines, Polk county, Iowa, have invented a new and useful Adjustable DoorsJamb, of which the following is a specification.

The object of this invention is to provide an improved adjustable door j amb'w'hereby a permanent adjustment may be made to insure a close fit between a door and jamb, without binding, for any condition of temperature or other atmospheric conditions.

A further object of this invention is to provide improved means to insure a tight closure of doors relative to their jambs under all conditions of temperature, atmosphere and the like within and without a building on which the structure is employed.

A further object of this invention is to provide improved means to efi'eot a desired relation of a door to its jamb at all times and under all conditions.

A further object of this invention is to provide an improved adjustable door jamb of simple and inexpensive construction and easy of application, whereby to prevent or minimize the necessity for frequent repairs and alterations of the door relative to the jamb to suit varying conditions of use.

A further object of this invention is to facilitate the hanging and fitting of doors and keeping them in proper relation to the jambs under varying conditions of use.

My invention consists in the construction, arrangement and combination of elements hereinafter set forth, pointed out in my claim and illustrated by the accompanying drawing, in which- Figure 1 is a horizontal section through a portion of a door and its casing, showing my improvement in position for practical use. Fig. 2 is a perspective view of a portion of the jamb, partly in section and on a reduced scale.

In the construction of the device as shown the numeral 10 designates a side jamb of a door casing, on one margin of which jamb is secured a casing member 11, and on the inner face of which jamb is secured a stop strip 12 to receive contact of the free margin of a door 13 when said door is closed. In the inner face of the jamb 10, and adjacent one margin thereof, at a point adjacent the free margin of the door 13 when in closed position, is formed a vertical rabbet 14, said rabbet being of any desired and suitable depth and of a width preferably corre' sponding to the thickness of the door, and of the distance of the stop 12 from such margin of the jamb. An adjustable jamb strip 15 is provided, and is of a width corresponding to the width of the rabbet 14 and door 18, and of a thickness materially less than the depth of said rabbet, and said strip'is mounted in said rabbet, it being understood that said rabbet and strip extend throughout the length of the j amb member 10, or from top to bottom of the door. A plurality of screw-headed bolts 16 are mounted through the adjustable strip 15 at selected intervals and extend loosely through apertures in the jamb member 10,

and are seated in bearing plates 17 mounted in or on the opposite face of said jamb member from the rabbet 14. Yielding pressure devices 18, in this instance composed of curved leaf springs, are mounted in the rabbet 14 behind and bearing at opposite ends against the adjustable jamb strip 15 adjacent the side margins of said strip, and it is the function of said springs to hold said strip to its outermost limit, of movement as limited by the screws or bolts 16 and prevent oscillation of the strip on said screws or bolts. It is the function of the screws or bolts 16 to adjust the position of the strip 15 toward or away from the door 13, within the rabbet 14 and relative to the springs 18, thereby adjusting and regulating the amount of space or the joint between the door when closed and its jamb. The connecting devices 16 also pass through the springs 18, thus holding said springs in position and tending to prevent rocking movement thereof, while at the same time permitting sufficient freedom of movement that the springs may compensate for any unevenness of the jamb members, and hold the strip 15 in the desired position of adjustment. It is preferable to leave a small space such as is indicated by the numeral 19 in Fig. 1, between the closed door and the jamb, especially when said door is used in the interior of a building, or in other words is not an outside door, thereby preventing a sliding or grating contact of the door with the jamb in the operation of opening or closing the door. This space may be provided for, in greater or less degree as desired, by employing my device herein shown and described.

The heads of the screws or bolts 16 are countersunk in the strip 15, and may be bronzed or otherwise finished to harmonize With the finish of the hardware employed on the door; or With the finish of the Woodwork of the room.

The use of this device provides an easy means for regulating and adjusting the joint or closure of a door in its casing, and assures a proper relation between said door and the jamb under .varying conditions. It elimi- Hates the annoyance of binding or loose fitting doors, and the necessity forfrequent repairs in the Way of dressing, adjusting or repairing doors and door casing members.

The casing member 11 closes the end of the rabbet l4, and no openings or spaces are formed and, no members are left to protrude to render the device objectionable v V I desire it to be understood that although specific terms are employed,- they are used in a generic and descriptive sense and not Copies of this patent may be obtained for five cents each, by

for purposes of limitation, the scope of the invention being set forth in the appended claim.

Washers may be mounted behind the heads of the bolts or screws 16, if desired.

I claim as my invention A device of the class described, comprising, in combinaiton with a hinged door, and a, fixed jamb member adjacent the free margin of said door When in closed position, said jamb member being formed With a vertical .r abbet in alinementwith said door, an adjustable strip mounted in said rabbet, leaf springs between said fixed jamb member and adjustable strip, said springs extending transversely of and engaging at their ends with said strip adjacent the mar gins thereof, and adjustable connecting devices passing through said strip, said springs and through said fixed jamb member, Whereby said strip may be adjusted and held against oscillation relative to the door.

Signed by, me at Des Moines, Iowa, this 28" day of November; 1916; V

CHARLES C. SMITH.

addressing the commissionerv of Patents,

Washington, D. G.

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