US729611A - Metal casing for tugs. - Google Patents

Description

PATEN-TED JUNE-:2, 1903..

No. 729,611. x

w. A. LANE.

METAL CASING FOR TUGS.

APPLICATION IILBD MAY'I. 1902. MLMODBL.

Ll IIIIII I INVENTOR WI TNESSES Attorney UNITED, STATES Patented June 2, 1903.

WILBER A. LANE, OF NORTH HAVEN, CONNECTICUT.

METAL CASING FOR TUGS.

SPECIFICATION forming part of Letters Patent N 0. 729,611, dated June 2, 1903.

\ Application filed May 1. 1902. Serial No. 105 ,454- (No model.)

To all whom, it may concern;

Be it known that I, WILBER A. LANE, a citizen of the United States, residing at North Haven, county of New Haven, and State of Connecticut, have invented anew and useful Improvement in Metal Casings for Harness- Tugs.

My invention relates to improvements in metal casings for harness shaft-tugs, the objects of the improvements being to add by practical means to the usefulness and durability of same, first, by furnishing an efficient metal casing adapted for immediate application to tugs already in use; second, by a change of material from a spring to rigid metal furnish a stronger and heavier casing for application to new tugs when manufacturing same; third, to furnish a metal wearing-casing that shall possess within itself the means for securing same within the tug-opening from lateral and vertical movement. I attain these objects by 'means shown in the accompanying drawings, in which- Figure 1 is a tug employing a light springcasing; Fig. 2, a perspective view of a heavier casing; Fig. 3, a cross-section along line a a, Fig. 1; Fig. 4, a View of a light springmetal casing; Figs. 5 and 6, sectional views along dotted line b b, Fig. 1, showing inner surfaces of casing and tug and means e d for securing the casing from verticalfinovement within the tug.

Similar letters refer to similar parts in. all the figures.

A is a view of a tug, showing form and application of casing.

B is the body of casing, showing general form of construction, both compressible and rigid, for old and new tugs. (See Figs. 4 and 2.)

For ready application to old tugs a light compressible spring metal is employed. (See Fig. 4.) For new tugs a heavier form constructed of rigid metal is preferred. (See Fig. 2.) The general outward form of casing is preserved for either adaptation and metal.

0 C are narrow flanges extending along each outside edge backfrom body of easing, having sufficient width to stiifen the casing and inclose the inner side corners of the tug, the casing being held securely from transverse movement by the flange projections f f f f,

extended from flanges O C, (see Figs. 1, 2, and 4,) and from vertical movement by bending inwardly the ends of the flange projections f f ff, by this means locking securely the body of. the casing through side flanges and the flexible material forming the tug, whether the casing be of spring or rigid malleable metal.

The side flanges C C are preferably made slightly tapering from center of casing toward the ends.

The body of the spring-casing is held in place by pressure from the spring expansion exerted through the ends of the casing on inner surface of the tug.

In constructing the casing from spring sheet metal a strip is cut to the length and width of body of casing, including flanges and flange projections, and latter bent to angle required withbody of easing, which is then drawn between rollers, bending same to required curve of the tug, after which the ends of the springcasing are drawn nearer together and secured by a wire preferablypassing through rivetholes (Z d at ends of same. (See Figs. 2, 5, and 6.) hen the compressed steel casing is applied to the opening" in the tug, the wire is removed and the casing held in place, as

before stated.

. To meet variations in sizes in old tugs, ad ditional means of fastening are provided through the V-shaped tongues e e at ends of easing, the points of which are driven back into the tug when applied (see Figs. 1, 2, 5, and 6 or through rivets passing through holes (I and sides of tug and same riveted together. I

The rigid metal casing is constructed from pattern of malleable iron, brass, steel, or other suitable metal, excepting an'additional thickness of material for stiifness and durability. (See Fig. 2.) The spring and rigid casings are alike in form. (See Figs. 2 and 4.) Being non-compressible, the rigid casing is better adapted for employment when the tug is being constructed. The compressible form gives to old tugs the practical benefit of the improvements through readyapplication, as before stated. r

I am aware that metal casings with plain side flanges have been made, and I do not claim such, broadly, as my invention; but

IOC

What I do claim, and desire to secure by Letters Patent, is

1. The harness-tug casing herein described, constructed of metal, open at one end, and having a rounded outer surface corresponding with inner surface of tug, and provided with side flanges, and flange projections extending from same, substantially as shown, and for purposes specified.

2. The harness-tug casing herein described, constructed of metal, open at one end, and having a rounded outer surface corresponding with inner surface of tug, and provided with side flanges having side-flange projections, and V-shaped tongues on the ends of casing for securing the same, substantially as shown, for purposes specified.

3. The harness-tug casing herein described, constructed of spring metal, open at one end, having a rounded outer surface, correspond-;

WILBER A. LANE.

Witnesses:

ROBERT B. HUGUNIN, MARY L. HUGUNIN.

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