US1185644A - Door-stop. - Google Patents

Description

H. J. FARRINGTON.

- DOOR STOP.

APPLICATION .FILED APR. 26, 1915.

1 1 85,644 Patented June 6, 1916.

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TIIB COLUMBIA PLANOORAPH 60-. WASHINGTON, n. C.

HARRY J. FARRINGTON, OF BOSTON, MASSACHUSETTS, ASSIGNOR- TO FARRIN'GTON MANUFACTURING COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

DOOR-STOP.

Patented one 6, 1916.

Application filed April 26, 1915. Serial No. 23,823.

To all whom it may concern Be it known that I, HARRY J. FARRINGTON, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented new and useful Improvements in Door-Stops, of which the following is a specification.

My invention relates to door stops; and its objects are to effectively secure the door for a temporary period in the open position dedoor in such position without injury to the floor beneath the stop, to adjust the length of the stop and its pressure upon the floor, to render such adjustment accessible to the control of the human foot, to secure yielding pressure means for the foot of the stop independent of the plunger spring, and to simplify and render more effective the operation of the severalparts.

My invention primarily consists in constructing within a housing and in sliding contact therewith an adjustable cylindrical plunger rod one end of which is secured by a helical spring to the closed top of the housing, and the other end of which telescopes with the cylindrical shank of a yielding pressure plunger foot, the axis of each said housing and plunger being co ncident with the axis of said shank.

My invention further consists in other novel construction and arrangement ofparts hereinafter more particularly pointed out, illustrated in the drawing and covered in the claims.

While there are a number of forms of door stop of the prior art in which plural springs have been employed in connection with the plunger, such forms are complicated and cumbrous and difficult of adjustment. No one, so far as I am aware, has heretofore succeeded in successfully incorporating in a door stop, tension spring mechanism located within the plunger and connecting the same with the housing, and confined compression spring mechanism independent thereof for the plunger foot, or in constructing a plunger foot shod with rubber or the like and having a cylindrical shank yieldingly connected with the plunger and telescoping therewith.

Attention is hereby directed to the drawin in which similar numerals of designation referto similar parts throughout the several views.

Figure 1 is a side elevation of my device;

sired, to hold the 2 is a front elevation of the same, and Flg. 1s a longitudinal section on line 3-3 of Fig. 2, looking in the direction of the arrows.

Referring to the drawing: to the swingmg door 1, I afiix the housing 5 by means of the flanges 6 and 7 integral therewith, screws f5 passlng through holes out for the purpose in the said flanges and firmly engaging with the wood of the door. Preferably said houslng and flanges are stamped from one single sheet ofmetal. In the front wall of the housing is cut the elongated slot 9, one side of which is provided with a rack formed by the notches 10, which are shaped to engage with the shank 11 of the handle 12 protruding through said slot and arranged to move freely therein. The inner end of said handle 12 passes through and is firmly secured to the wall of the cylindrical plunger 13 in slidmg contact with the inner face of the housing 5 and is also preferably formed from a single sheet of metal. The outer end of said handle is flattened as shown in order to provide an adequate means for engagement with the human foot.

A-helical spring 14: secured to the pin 15 at the top of the housing 5, and to that por tion of the shank of the handle 12 which is within the hollow of the plunger, serves normally when the said handle is out of engagement with the notches 10, to hold the upper end of the plunger 13 in close engagement with the top of the housing 5.

Within the lower end of the plunger 13 is secured the hollow cylindrical shank 16 of the plunger foot 17, a longitudinal slot 18 in the wall of the shank 16 engaging with a pin 19 afiixed to thewall of said plunger and permitting a limited longitudinal movement of the plunger foot 17. A spring 20 interposed in the bore of said shank 16 between said pin 19 and the top of the plunger foot 17, serves to provide a yielding pressure therefor. Preferably the said foot is shod with a shoe 21 of some elastic material preferably rubber. As will be observed, the axis of each said housing and plunger is coincident with the axis of said cylindrical shank.

To operate my improved device, the handle 12 being out of engagement with the rack of the slot 9, the door is swung into the desired position, and the plunger 13 is driven downwardly by pressure of the human foot on the handle until the plunger I foot is in close contact with the floor 22, and

the shank of said handle is engaged with the notch of the rack adjacent thereto. As is obvious, a greater or less pressure of the plunger foot can be obtained by adjusting the handle in accordance with the desire of the operator; and the yielding shank 19 taken in connection with the elastic shoe 21 preserve a yielding self adjusting contact with the floor and prevent the scratching 0r marring of its surface.

WVhile I have described my device as especially fitted for use as a' door stop in its preferred form of construction, I by no means desire so to limit the same since the said device may be otherwise applied to uses where a stop of the same character could be used to advantage, and various modifications and changes could be made without departing from the spirit or scope of my invention.

What I claim and desire to secure by Letters Patent is,

1. A door stop comprising an elongated housing provided with a slot, a hollow plunger slidably mounted within said housing,- a handle extended through said slot and attached to said plunger to move therewith, a spring attached at one end to said handle and anchored at its other end Within. said housing above said handle to yieldingly support said plunger, said spring extending through the plunger, a plunger foot having a shank slidably telescoping with the lower end of said plunger, and means within the shank for cushioning the plunger foot, said housing having means for engaging said handle to hold the plunger depressed.

2. A door stop comprising an elongated housing provided with a slot, a hollow plunger slidably mounted within said housing, a handle extended through said slot and attached to said plunger to move therewith, means within the housing and plunger, engaged with said handle to resiliently support the plunger, a plunger foot having a shank slidably telescoping with the lower end of said plunger, and means within the shank for cushioning the plunger foot, said housing having means for engaging said handle to hold the plunger depressed.

3. A door stop comprising an elongated housing provided with a slot, a hollow plunger slidably mounted within said housing, a handle extended through said slot and attached to said plunger to move therewith, a spring attached at one end to said handle and anchored at its other end within said housing above said handle to yieldingly support said plunger, said spring extending through the plunger, a plunger foot having a slotted shank slidably telescoping with said plunger, an abutment attached to the plunger and passed-through the slotted portion of the shank and a spring interposed between said abutment and the foot of the plunger, said housing having means for engaging said handle to hold the plunger depressed.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses, this 24th day of April 1915.

, HARRY J. FARRINGTON.

"Witnesses EBEN JORDAN, M. E. JoNns.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents. Washington. D. C."

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