US1760822A - Washing machine - Google Patents

Description

y 1930. w. A. FRANTZ 1,760,822

WASHING MACHINE Original Filed Sept. 24, 1923 Walter I Fran zz Inventor- Attorneys Patented May 27, 193

UNITED STATES WALTER A. FRANTZ, OI CLEVELAND PATENT. OFFICE HEIGHTS, OHIO, ASSIGNOR TO THE APEX ELEC- OHIO WASHING MACHINE Original application filed September 24, 1928, Serial No. 664,388. Divided November 26, 1926.

This invention relates to washing machines and has especial reference to machines of that type wherein a clothes-containing cylinder is rotated alternately in opposite directions in a bath of cleansing liquid. The objects of the invention are the provision of a cheap, simple and reliable connection between the operating shaft and the cylinderfwhich shall be tight, and reasonably silent during operation while permitting the cylinder to be readily removed when desired; the provision of a new and improved form of driving head for the purpose described; while further objects and advantages of the invention will become apparent as the description proceeds. This case is a division of my prior application filed September 24, 1923, Serial No. 664,338, patented December 20, 1927, No. 1,653,266.

In the drawings accompanying and forming a part of this application Fig. 1 is a sectional view showing a part of a washing machine containing my present improvements; Fig. 2 is a perspective view and 3 is a longitudinal view through my improved drivin head together with its shaft.

such a washing machine ordinarily comprises a casing 1, which may be either horizontal or vertical, having mounted therein a clothes receiving member 2, generally cylindrical. In the present embodiment this member is mounted on a horizontal axis, one end being provided with an axial stub 3 removably mounted in a recess in a bearing 4 carried by one end of the casing. The opposite end 5 of the cylinder has formed therein a rectangular socket 6 receiving the head 7 of,

a drive shaft 8 journaled in a bearing 9 carried by the wall of the casing. Outside this bearing the shaft 8 is provided with a bevel gear 10 by which a motion of rotation in opposite directions is produced. I have shown bevel gears 11 and 12 loosely sleeved on the driving thereto by means of the clutch spool 14 which is moved into engagement first with one and then with the other by suitable mechanism (not shown). The bearing 9 is secured in place by the ring 16 screwed to the exterior thereof and clamping the same to the casing wall, and leakage along the shaft is preventshaft 13 and clutched alternately and this application filed Serial N0. 150,773.

ed by suitable packing 17 compressed by packing glands 18.

The head 7 is preferably made of an alloy consisting largely of aluminum, generally alloyed with copper, zinc, silicon or other substances as customary in the aluminum casting art, and is secured to the end of the shaft 8 y being preferably roughened or knurled as indicated at 20. In order to effect this, a mold is made in the usual way as though it were intended to cast both shaft and head in a single piece, but before the mold is closed a steel shaft 8 is laid therein so that the aluminum head is poured therearound. Owing to the tendency of these aluminum alloys to shrink on solidification, and also due, possibly, to the fact that the steel shaft is already much cooler than the molten alloy, this head contracts upon the steel and grips it so tightly as to withstand the shocks of the continued re-' versals of the mechanism indefinitely whereas all other modes of attachment heretofore attempted have failed aftera short period of use.

The prismatic portion of the head is preferably terminated by a circular flange 21 which limits the insertion of the head into the socket 6. In addition to the mechanical advantages-of this mode of connection, such aluminum alloys are substantially unaffected by washing fluids, and materially shield all adjacent steel and iron parts from corrosion by galvanic action.

Having thus described my invention what I claim is:

Operating means for a washing machine wherein the mechanism to be operated comprises a non-circular recess having driving faces and arranged to receive a driving head, comprising a shaft, and an aluminum head adapted to cooperate with said recess and cast upon said shaft, said head being complementary in shape to said recess.

In testimony whereof I hereunto afiix my signature.

WALTER A. FRANTZ.

being cast directly thereon, said shaft

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