US326457A

US326457A - James h

Info

Publication number: US326457A
Authority: US
Publication date: 1885-09-15
Anticipated expiration: 1902-09-15

Description

(No Model.)

J. H. ROHME. I MEGHANISM FOR GONTROLLING STEAM DRIVEN SEWING MACHINES.. No. 326,457. Patented Sept. 15 188 \J mu w R J INVENTOR:

ATTORNEYS.

WITNESSES N. PETERS Plwto-Lflhognphur. Washington, 0.0

ijNlTED ST TES PATENT Fries.

JAMES H. ROHME, OF NEVVBURG, NEWV YORK, ASSIGNOR TO HIMSELF, JAMES ORR, OF SAME PLACE, CLINTON W. S\/VEET, OF NEW YORK, AND CLAYTON E. SWEET, OF XVAPPINGERS FALLS, N. Y.

MECHANISM FOR CONTROLLING STEAM-DRIVEN SEWING-MACHINES.

SPECEFICATION forming part of Letters Patent No. 326,457, dated September 15, 1885.

Application filed July 2?, 18P5 (No model.) I

To all 1072,0717 it may concerw Be it known that 1, JAMES H. Rornun, of Newburg, in the county of Orange and State New York, have invented certain new and useful Improvements in Controlling Mechanisms for Steam-Driven Sewing-Machines, of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional side elevation of my improvement shown as applied to a sewingmachine. Fig. 2 is a sectional end elevation of the same, taken through the broken line or war, Fig. 1. Fig. 3 is a plan view of a part of the same, showing the mechanism for throwing the driving-pulley into and out of gear. Fig. 4 is a side elevation of the driving-pulley, the driving-shaft being shown in section.

The object of this invention is to provide controlling mechanisms for steamdriven sewing-machines, by the use of which the said machines can be instantly started or stopped, and their speed can be readily controlled.

The invention consists in the construction and combination of the various parts of the mechanism, as will be hereinafter fully decribed, and then claimed.

A represents a sewing-machine; B, the sewinginachine table, and O the frame. D is the driving-shaft, to which motion isgiven from a steam-engine in the ordinary manner.

To a standard, E, secured to the floor beneath the rear part of the table B, is secured a bearing, F, which is provided with a sleeve, G, upon which revolves thehub of the driving-pulley H. Upon the side of the pulley H is formed an annular rib or-flange, I, which enters an annular groove, J, in the side of a friction-Wheel, K, the hub of which is secured to the driving-shaft D by set-screws L, or other suitable means. The face of the pulley H is grooved to receive the driving-belt M, which also passes around a pulley, N, attached to the shaft of the sewing-machine A. The hub of the driving-pulley H projects upon only one side of the said pulley, and upon it, near its outer end, is formed an annular rib or flange, O, upon which.at the op posite sides of the said hub, rest the slotted heads of two pivots or pins, P. The pins 1? are pivoted to the upper ends of two arms,Q, which project upon the opposite sides of the hub of the drive-pulley H. The lower ends of the arms Q are formed upon the shaft R, which rocks in hearings in the upper ends of the standards S, attached to the floor of the room. Upon the shaft D, and projecting at right angles with the arms Q,is formed, or to it is rigidly attached, an arm, '1, to the outer end of which is hinged the upper end of a connecting-rod. U. The lower end of the connecting-rod U is hinged to the end of the treadle V, which is fulcruined at or near its center to a rod, W, attached to the frame 0, so that the operator by operating the treadle V can throw the pulley H into or out of gear with the friction-wheel K, or so adjust the said pulley that it will be driven at any de sired speed.

Upon the shaft R is formed, or to it is rigidly attached,an arm, X,which projects downward at such an inclination that when the said shalt R is rock-ed to throw the pulley H out of gear with the friction-wheel K the end of the arm X will be brought into contact with the side of the said pulley H, and will act as a brake to instantly stop its movement. When the shaft R is rocked to throw the pulley H into gear with the friction-Wheel K, the brake-arm X .Will be withdrawn from the said pulley H. \Vith this construction, by operating the treadle V the operator can stop the pulley H, and withit the sewing-machine, instantly, and can instantly start the said pulley and sewing-machine at any desired speed.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination,with asewing-machine, A, having pulley N and the driving-shaft D, of the friction-wheel K,having annular groove J, the pulley H, connected with the pulleyN by a belt,1 \/I, and having an annular flange, I,

H and the rock-shaft R, connected with the said pulley by the arms and pins QP, and with the treadle V by the arm and rod T U, 15 of the brake-arin X, substantially as herein shown and described,whereby the said pulley will be instantly stopped when thrown out of gear with its friction-wheel, as set forth.

JAMES H. ROHME.

Witnesses:

JOHN M. PoLLocK, ROBERT BOYD, Jr.