US 888224 A
Description (OCR text may contain errors)
PATENTED MAY l9, 1908.
M. G. CLBMONS. ATTACHMENT FOR ROCKING CHAIRS.
APPLIOATION FILED NOV. 21,1907,
INVENTOR. M. C C/emons W X Q, r v W.
' backward movement of the occu ant.
UNITED STATES PATENT OFFICE.
MELVIN C. CLEMONS, OF DENVER, (.OLORADO, ASSIGNOR OF ONE-THIRD TO WILLIAM E. WILLIAIBES AND ONE-THIRD TO CHARLES J. DICKINSON, BOTH OF DENVER, COLORADO.
ATTACHMENT FOR ROCKING-CHAIRS.
Specification of Letters Patent.
Patented. May 19, 1908.
Applicatioxi filed November 21, 1907. Serial No. M3314? T 0 all whom it may concern:
Be it known that I, MELVIN C. CLEMoNs, a citizen. of the United States of America, residing at Denver, in the county of Denver and State of Colorado, have invented certain new and useful Im rovements in Attachrhents for Rocking-C hairs, of which the following is a specification.
This invention relates to certain new and useful improvements in attachments for rocking chairs and more especially in the device shown and described in the application for patent Serial #358,129, filed by me in the United StatesPatent Oifice, Feb. 18- 1907; and allowed November, 81907.
The object of the present invention is to provide a pneumatic'shoe or tread which may readily be applied to the rockers of a chair irrespective 0 their width or form and which when thus attached, will render the motion of the chair easy and noiseless, avoid creeping and damage to the floor and walls of the apartment or to furniture with which the rockers may come in contact and which will effectively prevent accidental overturning of the chair by excessive forwar? or attain this object by the device i ustrated in the accom anying drawing in the various views of w ich like parts are similarly designated and in which Figure 1- represents a pers ective view of a rocker with my im roved s 0e or tread in operative osition, Fig. 2 a plan view of the detache article, Fig. 3, a side elevation thereof, Fig. 4+ a longitudinal section taken along a line 44, Fig. 2, Fig. 5 an enlarged transverse section through the rocker and the thereto attached tread and 6- a cross sfiction illustrating a modifie form of the s cc.
Referring to the drawings, let the reference character A designate the curved rocker of a rocking chair, B the improved shoe or tread and O the clips by means of which the latter is held in osition underneath the rocker. The tread Ifis composed of a tubular body 5 made of rubber or other elastic material, which terminates in and is integral with solid heads 6, the extremities of which are re curved to provide the hook-shaped members 7 which, in practice, engage the ends of the rocker to which the device is attached.
The cylindrical body portion 5 of the trend is provided with two or more flat plates 8, whose upper surfaces are preferably tangent to the circumferential surface of the said portion at its uppermost point and which project laterally beyond the said surface to provide lugs or ridges 9 adapted to occupy seats 10 formed by the down and inwardly bent sides of the before named clips C which, for the purpose of attaching the shoe to the rocker, are secured in enga ement withthe under surface of the latteriy means of centrally disposed screws 12. The solid terminal portions 6, the outer cylindrical surface of which form a continuation of the circumferential surface of the hollow portion 5, are formed with depressions 13 and that of the lugs '9.
The de ressions 13 are, in practice, occupied by t e flat portion of the corresponding clips 0, thereby allowing the heads 6 of the shoe to enga e the lower surface of the rocker to which the article is attached. The terminal portion 6 which when the device is in position on the chair, engages the rearmost extremity of the-rocker A, is provided with a dependent, integral bumper 15 which during excessive backward movement of the chair, engages the floor and thus prevents overturning. A valve 16 extending laterally from the tubular portion of the article in communication with its interior, is rovided for the purpose of distending the said portion by forcing air thereinto. In. the form illustrated in F i 6 of the drawings, the upper ortion of t e tread has. been flattened to orln a b' tring surface which engages the lower sui .ace of the rocker to which the article is attached.
The shoe is secured to the rocker of a chair by means of the clips C as hereinbefore described and by placing the terminalhook members 7 over the corresponding extremities of the said rocker.
By reason of the pliability of the members 7, the may be adjusted to the rocker irres motive of the shape-of its extremities and the terminal portions of the heads 6, when the shoe is in place, present elastic bumpers which effectively avoiddamage to the walls of an apartment or to articles of furniture with which they come in contact.
The solid heads extending underneath the extremities of the rocker as well as the bumping block at the rearm-tist end thereof, prevent overturning of the chair by excessive movement in either direction, while, when the chair is in motion, they secure the tubular portion of the shoe against damage by unequal distribution of the air contained therein, when, in the extreme positionsof the chair, the weight of the occupant is brought to bear upon the extremities of the shoes.
Having thus described my invention What I claim is: '5
A device of the class nemed comprising an elastic cylindrical body including a tubular