US2020874A - Adjustable support - Google Patents

Description

A. A. BUDNICK ADJUSTABLE SUPPORT Filed April 12;, 1955 Nov. 12, 1935.

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Patented Nov. 12, 1935 UNITED STATES PATENT OFFICE 6 Claims.

This invention relates to a radiator construction and has particular reference to the provision of novel adjustable supporting feet for radiators.

7 v The principal object of the invention is to-provide for simple and. low cost production and. at the same time securing a durable, rigid and readily adjustable construction.

A further object is toproduce a device which will realize the foregoing object and at the same 10 time afford a construction which will tend to remain in any adjusted position and which can be accommodated exactly to such irregularities of floor surfaces as are likely to be met in practice.

With the foregoing and other and more limited objects in View, the invention consists in the novel construction and arrangement of parts that is hereinafter more fully described and illustrated in the accompanying drawing in which Fig. l is a side elevation and Fig. 2 is a fragmentary end view showing one of the adjustable feet in section.

In the drawing, the numeral I0 indicates generally a radiator which may be of usual construction except as to the supporting feet and the end sections of which are provided with integral externally threaded shanks II. Received on each of the shanks II is an internally threaded sleeve I2 which may be adjusted upwardly and downwardly for varying the length of the four feet independently. Preferably each of the sleeves I2 flares toward the bottom whereby to present a relatively large surface for engagement with the floor. The degree of taper may be greater than that shown, if desired. In such cases as the radiator feet or any of them rest on a carpet, it will be desirable that the lower surface be, quite large. Conveniently, sleeves of different degrees of taper may be made available to users.

As will be apparent from Fig. 2, I prefer to have the shanks I I extend downwardly at a slight angle to the vertical, preferably, outwardly, whereby to afford a broader supporting base. Each of the sleeves I2 has its lower surface cut in such manner that in one position of rotation, such lower surface will be perpendicular to the vertical (assuming that the main body of the radiator is vertically positioned). It will be clear that by this construction I secure a tendency of the sleeve to remain at the point of adjustment and to resist any tendency to loosen up and recede from the floor, as might occur in the event the shank II projected vertically downwardly and the bottom of the sleeve I2 were perpendicular to the axis thereof. Thus by a very simple construction, I avoid the necessity for set screws or other means oflocking the sleeve in position and provide a construction wherein none of the parts can be lost or get out of order. It will of course be necessary to adjust the feet by full turns since at only one position will the lower surface be parallel 5 with the floor. This is not objectionable however since it is convenient to use threads of about 1; of an inch pitch and this gives a sufficiently close adjustment. It does give rise to one problem, namely, that of exact adjustment of the 10 length of the feet to the fioor, but this problem is effectively solved by placing a lock nut I3 on one of the shanks I I, preferably one which is adjacent a wall and therefore not visible. 7

As is well known, any three legs of a four--' 15 legged appliance can be fitted exactly to any surface since three points define a plane. By the use of the type of construction disclosed, it clearly will be possible to secure an exact adjustment to any surface within one thread width of the 20 fourth leg. On account of the angular position of the shanks II, the lower surface of the fourth leg can be made to function as a final adjustment for the fourth leg, since by rotation through a portion of a turn, the difference in the length of 25 the sleeve I I at the various points around its surface can be taken advantage of to make adjustment for the last thread width and held in such rotated position by means of the lock nut I3. It is only necessary to use one such lock 30 nut on each radiator where such fine adjustment is desired. In view of the foregoing, it will be clear that the difference in greatest and least length of each sleeve, that is, the difference in length between the long and short sides thereof, 35 should be at least equal to the pitch of the threads on the shank II, that is, equal to one thread width. It is usually desirable that this difference should not greatly exceed one thread width,

since the greater the difference, the more diflicult 40 will be the adjustment especially in cases where the free vertical movement of the radiator is extremely limited.

Angularity of the shanks I I is indicated in the drawing by the line a-b which indicates the axis of the shank II and the line ac which is vertical and defining between them an angle A, in the present illustration, about l of arc. The divergence between the plane of the bottom 50 of the sleeve I2 and a plane perpendicular to the axis ab is indicated by means of the angle B. It will be understood that the particular dimensions and angles are only illustrative and that I am not limited to the details as shown but 55 only in accordance with the appended claims and prior art Having thus described my invention, what I claim is:

1. An article of furniture, a threaded element carried, thereby and extending downwardly therefrom at an angle to the vertical, a second element threadedly engaged with said first threaded element and having its lowermost surface lying in a plane perpendicular to the vertical in one position only.

2. An article of furniture, a plurality of threaded elements carried thereby and extending downwardly at an angle to each other, additional elements threadedly received by said first elements for adjustment up and down with respect thereto, said additional elements having their lowermost surfaces substantially horizontal in one relative position of rotation when said article of furniture is level.

v 3, A metallic article of furniture having a pair ofintegral, threaded shanks projecting downwardly therefrom at a slight angle to the vertical, sleeves threadedly received on said shanks and having their lower surfaces shaped to lie in a horizontal plane in one position of rotation when said article of furniture isvertically positioned.

4. A radiator or the like having its terminal portions each provided with a pair of threaded shanks projecting downwardly at an angle to the vertical, sleeves threadedly received on said shanks and having their lowermost surfaces shaped to lie in a horizontal plane in one posi- 5 7 tion of rotation and one of said projections being provided with a lock nut adapted to hold one of said sleeves in any selected position of rotation.

5. A radiator or the like including a portion provided with a threaded. projection extending 1o 7 downwardly therefrom at an angle to the vertical, a sleeve threadedly received on said projection and havingits lowermost surface adapted to lie in a horizontal plane in one position of rotation,

the difference in length between the longest and 15 ALFRED A. BUDNICKL

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