US193918A - Improvement in churns made of bent wood - Google Patents

Description

y zSheets-Sheetl.- M. BROWN, F. J. MoFARLAND & J. BROWN.

cHURNs MAD-E 0F BENT Woon'.

Patented Aug. 7,1a77f 70. an., n ra I'NVENTORS WITNESSES ATTORNEY 2 Sheets-Sheet 2. M. B RO W N, F. J.' Mc F A RLA N D & J. B B. 0 W N.

CH'LIRNS MADE 0F BENT WOOD.

atented Au 7,1877. g

lili/WIT: s

ATM N s WITNESSES TTORNEY UNITED STATES MICHAEL BROWN, FRANCIS J. MGFARLAND, AND JOSEPH BROWN, OF

' WAPAKONETTA, OHIO.

IMPROVEMENT IN CHURNS MADE OF BENT WOOD.

Specification forming part of Letters Patent No. l93,9l8, dated August 7, 1877; application filed A June 30, 1877.

To all whom it may concern Be it known that we, MICHAEL BROWN, FRANCIS J. MCFARLAND, and JosEPHBRowN, of Wapakonetta, in the State of Ohio, have invented a new and valuable Improvement in Bent-Wood Churns; and do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and gures of reference marked thereon.

Figure l of the drawings is a representation of a top view of our improved churn. Fig. 2 is a longitudinal central Vertical section thereof. Fig. 3 is an end view of the same. Fig.l4 is a vertical section, and Figs. 5 and 6 are dctails.

This invention has for its object the im provement of churns having rotary dashers.

The nature of the invention consists in certain novel means of forming the box, whereby the latter is made of three pieces only; in the novel construction of an improved packing, whereby the leaking of cream through the joint of the dasher-spindle and box is effectually prevented; in the employment of angular metallic corner-plates for holding the end pieces and the sides and bottom piece in proper juxtaposition and in the novel arrangement and construction of the various devices employed, as will be hereinafter more fully set forth.

In the annexed drawings, the letter A designates the box of our improved churn, and B the legs upon which it is supported. The former is composed of two end pieces, c, of suitable material, preferably ash wood, and the latter of a single piece of board of sufficient width, bent into the form ofthe letter U, and let into grooves b, of corresponding shape, formed in the said end pieces. rEhe bottom and side piece and the ends are then rigidly secured together by means of screws s passing through the latter into the edges of the former. The end pieces at their upper edges are rabbeted, as shown at c, and a corresponding rabbet is formed at c ou the corresponding edges of the sides by means of a bracing-strip, U, which is bolted to the outside thereof, as shown in Fig. 4. The rabbets c c form a seat for PATENT Ormea.

the lid D, which is correspondingly rabbeteil, as shown at d. In order to prevent all tendenoy to springing which the natural elasticity of the bent sides and bottom piece migl cause, we employ strong metallic angle-plate E, rigidly secured by means of bolts and screws to each upper cornerof the box. These plates, as shown in perspective, Fig. 6, are compose d ot' two side wings, d d1, and of a top plate, d2, connecting the former. When in position the wings d d1 embrace the side and end pieces, and the plate d2 lies snugly upon the upper ed ge of the box and bracing strip; consequen v met off. The legs B, before alluded to, are a o formed by bending a strip of wood in U for n, and bolting or screwing the said strip to extensions of the ends (t in an inverte-d p ition. The dasher E is composed of a rect ngular frame, having spaced perforations e an outside screw-threaded plate, c' i', and e screwed up, will be forced by the collar af resaid against the inside of the endwall of he cap, and cause the spindle to form an a solutely tight joint with the spindle. By n- 2 esame screwing the adjusting-screw F the dasher may be removed from the box, even though the latter be half full. In practice we may use a suitable locking device for the purpose of preventing the spindle-screw from rotating backward and allowing the dasher to become unshipped. Rotary motion is imparted to the dasher through an annular master-gear, K, meshing with gear k upon the projecting end of the spindle G, and a suitable crank, L, rigidly but removably secured to the said mastergear near its hub. This wheel is connected with a hub, m, by means of radial arms or spokes n, that unite with the perimeter of said wheel outside of and clear from its inside cogged surface, and is journaled on an independent axis or spindle, M, projecting from the box. To get at the packing for renewal,v

take off the master and gear Wheels, remove the dasher, and unscrew the cap. The spinand the side and bottom `pieces; N, formed as described, of the corner angle-plates E, having the upper wing d2 raised above the sides and ends of said box, and serving as stops for its lid, substantially as specified 2. The combination, with churn-body A, of`

MICHAEL BROWN. FRANCIS J. MCFARLAND. JOSEPH BROWN.

Witnesses:

F. C. LAYToN, C. P. DAVIS.

Images