US354540A - Chuck for broom-barrels - Google Patents

Description

(No Model.

J. H. DAKIN.

CHUCK FOR BROOM BARRELS.

No. 354,540. Patented Dec. 21, 1886.

UNITED STATES PATENT OFFICE.

JOHN H. DAKIN, OF SOHENFGTADY, NINV YORK. I

CHUCK FORBROOM-BARRELS.

" SPECIFICATION forming part of Letters Patent No. 354,540, dated December 21, 1886.

Application filed November 23, 1885. Serial No. 183,763.

To all whom it may concern:

Be itknown that I, JOHN H. DAKIN, a citizen of the United States, residing at Schenectady, in the county of Schenectady and State of New York, have invented certain new and useful Improvements in Chucks for Broom- Barrels; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain new and useful improvements in chucks for broom-barrels, and particularly to novel means for firmly clamping and holding the broom-handle therein during the process of winding the cord or wire which secures the broom-corn upon the said handle.

Referring to the accompanying drawings, illustrative of my invention, Figure 1 represents a side elevation of my improved broombarrel chuck. Fig. 2 represents a longitudinal section upon the line 2 2, Fig. 3. Fig. 3 represents a front elevation of the same, the annular plate in front of the clamp-lugs being removed to better illustrate the disposition of parts. Fig. 4 represents in detail (side elevation, bottom view, and plan) the shape of the clamping-pieces.

Similar letters of reference indicate similar parts throughout the several views.

A indicates a hollow broom-barrel, shown in Figs. 1 and 2, for sake of convenience, as partially broken away.

Upon its exterior surface the broom-barrel is provided with a projecting screw-thread, 0, cut from left to right. In front of the screwthread the barrel tapers toward its outer end, where it is surrounded by the tapering collar D, firmly attached to it by screws ff, as shown, or otherwise. From its outer end and extending inwardly the barrel is provided with three equidistant longitudinal slots or recesses, cut completely through the walls of the barrel up to the line 3 3, Fig. 2, and from that line gradually decreasing in depth to the line 4 4, san1e figure. Within each of these recesses fits one of three clamping-pieces, E E E. (Shown in detail in Fig. 4.) Each piece is hollowed out in such manner that when inserted within its appropriate recess it will form a continuation (No model.)

of the smooth inner surface of the barrel. It is provided with flanges F F, resting upon corresponding flanges, G G, of the divided end branches, H H H, of the barrel.

The portion I rests within the tapering surface groove of the barrel. At its rear end it has a lug, K, extending above its surface. This lug abuts against and lies within an annular seat or recess, L, in the face of a hand-wheel, M, provided with an internal screw-thread e11- gaging with the screw-thread O of the barrel. The lugs of the various clamping-pieces are held in place within the recess L by means of the retaining-ring N,screwed to the hub of the hand-wheel.

The parts of the device are put together as follows: The hand-wheel M is first passed over the end of the barrel and screwed in place. The clamping-pieces are then set within their recesses, their lugs I resting within the seat L, and the retaining-ring N is then slipped on and screwed fast to the wheel-hub. The conical collar D is then attached by means of the screws ff to the end branches, H II E[.

In order to operate the clamping device the broom-handle is inserted, as in Fig. 1. The wheel M is then turned toward the right, and, traveling outwardly upon the screw-thread C, pushes the clamping-pieces I through the tapering collar D. As the pieces advance they are brought nearer and nearer each other, grasping the broom-handle equally on allsides and clamping it with a force dependent upon the distance traveled by the hand-wheel. Any required degree of clamping action can be thus secured by the operator with the exercise of comparatively little power.

The handle, after the broom is wound, may be released at once by a simple reversal of the wheels motion, and will be found to be unmarred by the clamping-pieccsan important consideration in the manufacture of the better class of brooms. The whole constitutes a device of simple and economical construction, readily operated, and easily repaired, and of tried efficiency.

It is evident that by obvious alteration within the ability of the skilled mechanic the wheel M may be provided with a smooth bore and connected with a hand or foot lever, so as to be slid back and forth over the broom-barrel and operate the clamping-pieces in like manner as above described. In someinstances I contemplate employing this alternative structure, my invention being of a generic character so far as the means for throwing out and retracting the clamping-pieces is concerned.

Having thus described my invention,what I claim, and desire to secure by Letters Patent, 1s

1. The combination, with the main body A of a broo1n-barrel chuck, of the traveling wheel M, the tapering collar D, and clampingpieces E E E, connected with said wheel and passing through the collar, substantially as described.

2. The combination, with the main body A of a broon1-barrel chuck, said main body having the exterior screw-thread, O, and being cut away or slotted at its outer end, of the traveling wheel M, having an interiorly-threaded hub, the sliding clamping-pieces E E E, fitting within the slots of the main body, and the tapering collar D, through which the pieces slide during the forward and backward movements of the wheel, substantially as described.

3. The combination, with the main body A of a broom-barrel chuck, having at its outer ends recesses or slots, as described, of the sliding clamping-pieces E E E, fitting within said recesses and having lugs K, the tapering collar D, the hand-wheel M, having a hub recessed at L for the reception of the lugs K of the clamping-pieces, and the holding-plate N, substantially as described.

' JOHN H. DAKIN. Witnesses:

EDWARD HIBBARD, BENTLEY SNITs.

Images