US515573A - Carpet-beater - Google Patents

Description

(No Model.) w I r G. S. OHAPPEE, A S. HOFFMAN & F. A; GREEN.

GARPBT BEATER.

No. 515,573. Patented Feb. 27, 1894.

r H, W

"mi mmamu. Cm-(eanAr-nme COMPANY.

WABH NDYOrL u. c

Un ts!) STATES PATENT @rrrcn.

CHARLES SJOHAFFEE, ALVIN S. HOFFMAN, AND FRANK A. GREEN, OF BIRMINGHAM, CONNECTICUT.

CARPET-BEATER.

SPECIFICATION forming part of Letters Patent No. 515,573, dated February 27, 1894;.

Application filed June 26, 1893.

part of this specification, and represent, in'

Figure 1, a plan view of a carpet-beater constructed in accordance with our invention,

with its top removed; Fig.2, a sectional view on the line ctb of Fig. 1, the two-part hinged top of the box or case of the device being, however, shown; Fig. 3, a detached reverse plan view of the operating arm secured to the beater shaft; Fig. 4, a broken view partly in elevation and partly in section and showing one end of the brush; Fig. 5, a broken view showing in particular one of the pivotal arms in which the brush is suspended; Fig. 6,a detached view of the brush in end elevation.

Our invention relates to an improvement in carpet-heaters, the object being to produce a simple, compact, convenient and efiective device, composed of few parts, and not liable to derangement.

With these ends in view, our inventionconsists in a carpet-beater having certain details of construction and combinations-of parts as will be hereinafter described and pointed out in the claims. v In carrying out our invention, we construct a box or case A in substantially the usual form, adapting it for the attachment of a handle, which is not shown. Within the extreme forward end of the said case, and at the lower corner thereof, we journal a beatershaft B, to which is attached a series of boaters 13', located at equal distances apart, extending rearward, and each consisting of a thin strip of flexible sheet-metal. A rigid operating arm 0, firmly secured to the said beater-shaft midway the length thereof, is shaped to extend over and to the rear of a driving-shaft D, journaled at its ends over the heaters in the forward portion of the case, at a higher elevation therein than the beater- Serial No. 478,925. (No model.)

shaft before mentioned, the said arm being provided at'its extreme rear end with a pivotal or hinged operating finger O, which is engaged by lugs D formed upon the said driving-shaft or which might be furnished with equivalent projections. ger is constructed and arranged so that when the lugs are engaged with its lower face in the forward movement of the beater, it will not yield, forcing the lugs to lift the arm 0, and rock the beater-shaft. When, on the other hand, the beater is moved in the opposite direction, and the lugs engage with the upper face of the finger O, the same will turn on its hinge, and permit the lugs to pass, whereby the boaters are not actuated when the device is moved backward. As herein shown the said finger O is pivoted to the under face of the plate or head 0, located at the outer end of the operating-arm O, in position so that the said head resists its upward movement. A spring 0' fastened to the under face of the said head 0, engages with the under face of the finger, and normally holds it in place, but yields to permit it to be dis placed as shown by broken lines in Fig. 2 when the lugs D of the driving-shaft are brought into engagement with its upper face. The operating arm 0 is constructed with a long clearance space 0 through which the said lugs pass for engagement with the pivotal finger just above described. A spring E, secured to the front of the case, extends rearward therefrom for engagement with the upper edge of the arm 0, and furnishes the power for snapping the heaters against the carpet after they have been lifted therefrom by the engagement of the lugs on the beatershaft with the under face of the pivotal finger carried by the arm. The said shaft is furnished at its ends with driving-wheelsd d, the peripheries whereof are recessed to receive belts F F, as shown. These wheels are arranged to extend sufficiently below the case to support the same just above the surface of the carpet. The brush is located to the rear of the driving-shaft adjacent to the rear ends of the heaters, and as herein shown, is suspended in the rear ends of two arms H H, the forward ends of which are hung upon the ends of the said shaft D.

The said fin-.

As herein shown the brush consists of a shaft I, provided at its respective ends with metal rings J J, each provided with a circular series of radial slots J, closed at their outer ends and receiving fingers 70, formed by cutting away the. ends of folded sheet-metal holders K,- hetween which strips L, of felt are clamped, the said holders being thus radially arranged around the shaft I, to which they are additionally secured by means of staples Each of the said holders consists of a single strip of sheet-metal, folded longitudinally upon itself so as to virtually form two complementary leaves or members which receive a strip of felt directly between them, the said leaves being brought sufficiently close together topinch and securely hold the strip;

Inasmuch asthe outer ends of the radial slots J'" areclos'ed, the holders are preventedfro-in outward displacement by the impingement of their fingers against the outer end walls of the slots; By this construction also, the rings at theends of the shaft prevent the holders trom longitudinal displacement. The inward displacement of the holders is prevented by the shaft itself. At each of its ends the shaft I, is provided with a trunnion 'i, the'said trnnnions taking into the rear ends of the arms H H before mentioned, and also: carrying wheels- M M, having their peripheries recessed to re= over as stated,.the driving wheels dd, mounted upon the driving-shaft D. By recessin'g. the

scribed, thehelts running over them are let down below their treads, so that the belts are notworn.

To the rear of thehrush we locate a dust receptacle N, which may be of any'suitable description, and which extends under the" brush in such a manner that when the device is lifted from the floor, the said receptacle is engaged by the brush and the latter held within the box or case of the device.

It will he understood from the foregoing that by arranging the heaters to extendrear ward from the extreme forward end of the case,- they are caused to beat directly into the brush, which is obviously a very advantageous arrangement. This construction also causes the heating. to'be done in about the middle of the device, which is advantageous. Furthermore by this arrangement, economy of space is secured, for it permits the loca- I tion of the driving-shaft between the beatershaft and the brush.

By the employment of a; pivotal finger arranged to resist the lugs on the driving-shaft when they are moving in one direction, but yielding and allowing them to pass when they are moving in the other direction, we avoid the actuation of the beaters when the machine is being moved backward, whereby we prevent any dirt from being beaten up and left on the floor, as would result if the heaters responded to rearward movement of the device, for when the device is moving rearward, the brush precedes the heaters, and will not take up the dirt they raise. By journaling the brush as set forth, in the outer ends of pivotal arms, free to move up and down on their pivots-4t rests upon the floor under a pressure represented by its weight, instead of beingheld in a fixed position with relation to the floor. In this way we secure a more intimate connection between the floor and the brush, and compensate for inequalities in both. It is apparent, however, that the particular arrangement of heaters, driving-shaft and brush, does not call for the exact construction shown and described, and equally apparent that all the de vices set forth are not necessarily used with each other.

We would: therefore have it understood that we do not limit- OUI'SBIVGSIOlIhBTGXfifGt constructionherein shown and described; but

hold on-rselvesatliberty tomahe such changes and alterations as fairly tall'within-thespirit and scope'of our invention; We are aware that it is not now, however, to journal rotary brush in arms pivotal'ly'mou-nted within 5 the box or case of a carpet-heater, and we-are also'aware that a brush having: radially arranged holders) or bristles is old; WG'dOHOl; I therefore claim either ot those-constructions .broa'dly.

ceive the driving belts F B, which also pass 3 ;i we claim asnew,and desiretosecure'by Leti ters- Patent,-is-

peripheries of the wheels M and d, as de-' the casethereof of aheatershaft loca-tedifn the forward end of the said case, heaters at- Having fully described our invention, what 1. I11 carpet-heater,.the combination with tached to the said shaft, and extending; rearward therefrom, a brush located adjacentto the rear ends or the beaters,.a driving-shaft located between the brush and the heater shaft, and connection between the driving shaft and the heater-shaft,- whereby thelatter is actuated,and connection between thedriv-- ing-shaft and the brush, whereby the sameis rotated, substantially as described.

2. In a carpet-heater, the combination with the case thereof, of a heatershaft-l'ooated in theforward end of the said case, heaters attached to the said shaft and extending rearward therefrom, a brush located adjacent to the rear ends of the heaters, a driving-shaft located above the heaters, and between the brush and the beater-shaft, an operating-arm rigidly connected with the beater-shaft, lugs or projections located upon the'driving-shaft' and engaging with the said arm to oscillate the beater-shaft, and connection between the driving-shaft and the brush, whereby the latter is rotated, substantially as described.

3; In a carpet-beater, the combination with the case thereof, of a beater-shaft located in the forward end of the said case, heaters attached to the said shaft and extending rearward in the case, a brush located adjacent to the rear ends of the heaters, a driving-shaft located above the heaters between the brush and heater-shaft, and provided with lugs or IIO projections, a pivotal finger connected with the heater-shaft, and constructed and arranged to resist the said lugs or projections when they impinge on one of its faces, bnt yielding to let them pass it when theystrike its other face, and connection between the driving-shaft and the hrnsh, for rotating the latter, substantially as described, and whereby the heaters are only operated when the device is being moved forward.

4. In a carpet-heater, the combination with the case thereof, of a beater-shaft journaled the other instrumentalities thereot',of a brush, comprising a shaft, rings or heads applied to the ends thereof, and constructed with radial slots closed at their'onter ends, folded sheetmetal holders interposed between the said heads which prevent them fromlongitudinal displacement, and having their ends cut away to form fingers adapted to be inserted into the slots in the said heads, and each holder consisting of a single strip of sheet-metal longitudinally folded upon itself to form two leaves or members, and strips of felt clamped in the saidholders directly between the leaves thereof, substantially as described.

In testimony whereof we have signed this specification in the presence of two subscribing witnesses.

CHARLES S. OHAFFEE. ALVIN S. HOFFMAN. FRANK A. GREEN. Witnesses:

S. H. Lnssnv, WM. S. BROWNE.

Images