US504158A - Half to elisha hewitt - Google Patents

Description

(No Model.)

P. FREDIN. f TRUSS.

No. 504,158. 'Patented Aug. 29, 1893.

UNITED STATES i PATENT Gerlos.

PERJOI-IAN FREDIN, OF NEW HAVEN, CONNECTICUT, ASSIGNCR OF ONE- HALF TO ELISHA HEWITT, OF SAME PLACE.

TRUSS.

SPECIFICATION forming part of Letters Patent No. 504,158,1`dated August 29, 1893.

Application led February 24,1893. Serial 110.463,542. (No model.)

To a/ZZ whom it may concern;

Be it known that I, PERJOHAN FREDIN, of New Haven, in the county of New Haven and State of Connecticut, have invented a new Improvement in Trusses; and I do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure 1, a perspective View of a truss oonstructed in accordance with my invention; Fig. 2,' a View in front elevation of the device with the main portion of its strap or band broken away; Fig. 3, a view in Vertical section on the line .fc-x of Fig. 2; Fig. 4, a detached View of the cup-shaped frame showing the recess formed in it to receive the end of the inflation tube of the ball-pad; Fig. 5, a view showing the two members of the frame support detached from each other.

My invention relates to an improvement in that class of trusses in which the pad consists of an inflated ball, the object being to produce a simple, eective, and comfortable article, having provision for the ready inflation of the pad without its removal, for the circulation of air under the pad, and for a wide range of adjustment in the position of the frame and hence the pad, with respect to the ,band or strap which passes around the body.

With these ends in view, my invention consists in a truss having certain details of construction and combinations of parts as will be hereinafter described and pointed out in the claims.

In carrying out my invention, I employ a Lpad consisting of an iniiated rubber ball A,

having a small iniiation tube A', by means of which the ball is kept inflated to the required degree. This ball is set into a cupshaped frame Bconforming to it in curvature, and nearly hemi-spherical in form as herein shown. This frame may be of wood, or other suitable material, and is constructed with perforations B', to permit air to circulate around that portion of the ball which it incloses. As shown herein the said perforations are arranged in a circular series, and each consists of a long narrow slot. The 1nmetal.

, flation tube A of the ball is passed through one of the said openings, and hence to one side of the center of the frame, as shown in Figs. 2 and 3 of the drawings, whereby it is got out of the way, or cleared from the inside of the frame, and whereby also it is brought into an accessible position for iniiating the ball without removing the same from the frame.

As herein shown, the frame is constructed upon its outer face and near its center, with a recess B2, which is designed to receive the end of the tube, the same to be subjected to compression in the said recess, and in that way kept closed to prevent the escape of the compressed air within the ball. By locating the recess as described, the end of the tube will be compressed by the lower end of the long member C, of the two-part frame support of the device. This is clearly shown in Fig. 3 of the drawings.

It is apparent that if desired, a special opening might be made in the frame for the inflation tube of the ball to pass through, and also that special means might be provided for compressing the end of the tube in its recess. I do not therefore limit myself to the exact construction shown.

The two-part frame-support consists ofthe long member C, before mentioned, and a short member C', which are made of heavy spring The lower end of the member C, has a perforation c, which receives a screw D, passing also through .the center of the frame, and into a threaded nut D', located in the bottom of the same, whereby the frame is firmly secured to the said member of the frame-support. The upper end of the member C, is constructed with a longitudinal slot c', which receives a screw E, by means of which the said member is adj ustably attached to the band or strap F, which may be of any ICO long member C, thereof, virtually forming a wide base for the attachment of the member C to the band or strap. By loosening either the screw G, or the screw F, or both, it isapparent that the member C, which carries the frame, and hence the pad, may be adjusted vertically or `laterally within therangeof the @l slots c', c2 and c3, the combined range of which enables the pad to be set in a great variety of positions with respect to the band or strap. y It will be apparent that if it is designed tol either raise or lower -the compression of `thef air within the ball, it may readily be doneby 1 `loosening `the screw D, suiiiciently to permit `the end of the tube A', to be drawn outof the'recess B2, formed in the outerlface ofthe If it is desired, for instance, to inframe.

l l i i 4 crease the pressure of airwithin the baILthe mouth may be applied to the tube, and the;

ball blown into, after which the tube may.

be pinched at its inner end between the tingers, while its outerend is inserted into the recess and clamped therein by `turning up,

the screw D, again.

Or, the screw may,

simply beloosened until a portion of the airl within the ball has been allowed to es-l cape, after which it may be tightenedagain. By preference I shall employ a loose cover I, of -soft wash-leather orother equivalent mat terial, as a protection for the ball-pad. This cover will be fitted over the ball-pad VandI adapted in size to sufficiently extend over the frame to he firmly attached thereto `by means of a pucker-string J, passingthrough holes I', formed in its edge. It is apparent that by tightening this string, the cover willlbe drawn down upon the f1'ame,and thus secured `in place. This coverI have found makes my improved truss more comfortable in use, as well as more cleanly, for it avoids discoloration of the rubber ball pad, and may readily be removed and washed. It preferred it may be extended `so as to nearly cover the frame, but it will be sufficient to simply carry it over the edge of the same far enough for its attachment thereto.

In view of the suggestions made herein, `I would have it understood that I do not limit myself to the exact construction herein shown and described, but hold myself at liberty to an opening located at one side of its center to permit the tube to project through it for clearance and inflation, a framesupport atft-ached `tothe center of the said cup-shaped frame, and a band or strap to which the said frame-support is attached, substantially as described.

2. A truss having-aball-pad furnished with anintlation tube, a cup-shaped-frame adapted to receive "the said pad `and permit its tube to project through itat a pointoneside of its center, and constructed at its outer face with a recess to receive the end of the tube, and means for clampingr the tube in thesaid recess, substantially as described.

3. A truss having a `band or strap to pass around the body, a frame-support attached to the said band or strap, aiball-pad `furnished with an inflation tube, and a cup-shaped frame adapted to be attached to "the said support and to `receive the said ball-pad, and permit the tube thereof `to `pass through it, andconstructed with a recess to `receive the end of the said tube, and located in position for `the compression of the tube by-the said support when the frame isattached thereto, substantiallyas described.

4,. A truss lhavinga `balLpad, a `frame to receive the same, a band-0r strap to pass around thebody, and a-pad-support consisting of a long and a short member, both attached `at their upper ends to the -band,and the-former having the trame attached to its lower end, and theupperend of the longlmember, and the lower endof the short `member being longitudinally slotted, and the long member having a substantially transverse slot to receive a stud also passing `through the slot `inthe lower end of the short member, substantially as described.

In testimony whereof `I -have signed this specification inthe `presence of two subscribing witnesses.

PERJOIIAN FREDIN.

Witnesses:

FRED C. EARLE, (1I-ias. P. KELLOGG.

IOO

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