US657318A

US657318A - Spring-motor for sewing-machines.

Info

Publication number: US657318A
Application number: US1906200A
Authority: US
Inventors: James Robert Oliver
Original assignee: Individual
Current assignee: Individual
Priority date: 1900-06-04
Filing date: 1900-06-04
Publication date: 1900-09-04
Anticipated expiration: 1917-09-04

Description

No. 6 57,3|8. Patented Sept. 47 |900. J. H. OLIVER. SPRING MOTOR FOR SEWING MACHINES.

(Application led June 4, 19004 2 Sheets-Sheet l (No Model.)

No. '657,313. Patented sept. 4, |900. J. n. OLIVER.. SPBlNG MOTOR FR SEWING MACHINES.

(Application led June 4, 1900.

(No Model.)

2 Sheets-Sheet 2.

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i UNITED STATES liixrieivflr OFFICE.

JAMES ROBERT OLIVER, OF MCMINNVILLE, TENNESSEE.

SPRING-MOTOR FOR SEWING-MACHINES.

SPEClFIQATION forming part of Letters Patent No. 657,318, dated September 4, 1900.

Application filed June 4,1900., Serial No. 19,062. (No model.)

To all whom it may con/cern:

Beit known that I, JAMES ROBERT OLIVER, a citizen of the United States, residing at Mc- Minnville, in the county of Warren and State of Tennessee, have invented a new and useful Spring-Motor for Sewing-Machines, of which the following is a specification.

The invention relates to improvements in 'spring-motors for sewing-machines.

One object of the present invention is to improve the construction of motors for sewingfmachines and to provide an exceedingly simple and inexpensive one adapted to be readily applied to an ordinary sewing-machine without necessitating any material al- 1er-ation in the construction thereof and capable of being readily wound up and controlled by the operator without leaving her position at the front of the machine. y

A further object of the invention is to provide a spring-motor of this character which will admit of the machine being stopped at any position with the'needle up or down and which will permit a bobbin to be wound in the usual manner without running the other part of the machine.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended. l

In the drawings, Figure 1 is a front elevation of a sewing-machine provided with 'a spring-motor constructed in accordancewith this invention. Fig. `2 is a rear elevation of the same. Fig. 3 is a vertical sectional View taken transversely of the machine from front to rear. Fig. 4 is a plan View, the table of the machine heilig removed.

Like numerals of reference designate corresponding parts in all the figures of the drawings.

1 designates a main drive-wheel consisting of a bevel gear-wheel mounted on a horizontal shaft 2 and which meshes with a small bevel-pinion 3, located at one side of the machine andV connected with the" band-wheel 4 thereof. The band-wheel 4 of the machine, which is of the ordinary construction, is mounted on a horizontal bar or shaft 5, which is stationary and which extends from one side of the frame 6 of the machine to the other side thereof to support the said band-Wheel and also to form a support for the front end of the horizontal main shaft 2, as clearly shown in Fig.4 of the accompanying drawings. The front end of the main shaft is preferably provided with cone-bearings, and the rear end or portion which is journaled in the rear diagonally disposed crossed braces 7 of the frame is provided with suitable cone-bear ings; but ball-bearings or any other suitable antifriction devices may be provided for reducing the friction to a minimum.

The main shaft 2 is connected with the inner end of a power-spring 8 by a set-screw or other suitable means, and the outer end 9 of the spring is connected with the frame of the machine by a rod l0, located beneath the top or table l1. The large drive-wheel 1 is mounted loose on the main shaft 2, but is connected with the same by a suitable clutch 12, which may be of any desired construction and which is adapted to permit the shaft 2 to be turned independently of it when winding the spring. The spring when wound up is adapted to drive the shaft 2, and the motion thereof is communicated to the band-wheel 4 through the bevelgearing before described, as clearly illustrated in Fig. 4 'of the accompanying drawings.

The rear .end of the main shaft 2 has loosely mounted upon it a large gear-wheel 13, which is provided with a notched hub 14, adapted to interlock with a notched collar 15 ofthe shaft, -whereby it may be rigidly connected with the sam'e for winding up the spring, as hereinafter explained. The collar 15 is secured to the rear portion of the shaft by a set-screw, and the inner end of the hub o f the rear gear-Wheel 13 is provided with an annular groove 16, receiving the forked end of a bar 17, which is slidingly mounted on the frame and which is connected with an operating-lever 18. 'lhe bar 17 is approximately L-shaped, its rear portion being provided with the said forked end 19 and its front portion being pivoted 'to the operatinglever 18. The forwardly-extending portion of the L-shaped lifting-bar is mounted in suitable guides or brackets of the adjacent side of the machine, and the operating-lever 18, which is fulcrumed at its lower end 20, is provided at its upper end with a handle and is' adapted tobe moved inwardand outward l to engage `therea'r gear-Wheel withfthe collar and todisengage it therefrom.

` kThe large rear gear-Wheel 13 meshes 'with l abracket or'hanger 23.

an upper rear pinionvor gear 21, mounted ona rod 22, forming ashaft and extending tothe g front of the machine, vWhere it is journ'alied'in` ,The bracket or hanger23 Vconsists of two substantially U- shaped sides-provided Aattheirterminalsfwith vattachment-plates, which are screwed orfoth'- erwise secured tothe top or table of the, ina-nV chilies?Thefronit'end ofthe rod or shaft '22i 1 "carries a ,small` gear or pinion 24', which meshes with a` spurpinion 25 of. a shaft or` spindle 26,Which iextendedbeyondvthefront f of t-'he'machineand carries. a vcrank-handle` i 27,. asclearly illustrated in Fig. 4 of the ac- `companyingl drawings. The crank-handle is adaptedto be rotated,and through the front spur-pinions andV the'- rear spurr gear-Wheels land 21 is adapted to'rotate the main shaft 4carrying a swivel'ed wheel 30 at its inner end for engaging therim of the band-Wheel, and the said swiveled Wheel is provided' with aV rubber rim or tire and is adapted to run on `when the needle is either up or down.

the said band-wheel. The swivel Vconnection between the brak-e or.` controlling wheelBO and the screw permits the latter to be adjusted or rotated independently of the former. c By' adjusting the screw the machine may be stopped, started, and caused to run at thehvdesired rate of speed, and the stopping oi"- the machine may be effected at any time and:

What is'claimed is-` 1. In a device of the class described, the combination with a sewing-machine, of ahorizoutal main shaft, a spring connected there-y with, bevel-gearing con necting the main shaft with the band-wheel of the machine, a rear gear-wheel having a clutch connection with the shaft, an operating device for throwing the rear gear-wheel into and out of engagement with themain shaft, andgearing mesh# ing with the rear gear-Wheel for Winding'the spring, substantially as described.

` 2. In a device of the-class described, the combination with a sewing-machine, of a horizontal main shaft, a spring -connected with the same, gearingconnecting the main shaft with the band-wheel of the machine, a rear gear-Wheel slidingly mounted on the main shaft and havinga clutch KAconnection with the same, tan operating-'lever arranged lat the front of 'the machine,"a*sliding` bar connected with the lever-aud with the `rear gear-wheel, and windingmechanism meshing with the rear gear-wheel, substantially as described.

l AIn a device, of thel class f described, the combination with a sewing-machin e, of-a horizontal Amain shaft, a spring.connected with 'the same, gearing con uecting the' main shaft with the band-Wheel of the machine, a gear `wheel" slidinglyl mounted onthe main "shaft and havin ga clutchjconn'ection w-ith the same, :asu'bst'antially Leshaped bar slidingly mount- `eden the frame of the machine and connected with the gear-whjeel,iand -iajlever fulcrumed at `'its lowerpend' at the front of the machine and provided :at-its upper endwith a handle and-connected between its ends withlthe sliding bar, substantially asf described. 'Y

4, In aldeviceof v.the class described, the combination Withajmachine, of a mainV shaft 2, gearing connecting the mainshaft with the band-wheelof the machine,a spring connected with the main shaft, a gear-wheel slidingly mountedon themainshaft andkhaving a .clutch connection with the same', -a countershaft 22,agear-Wheelmounted on the countershaft and `meshing with the said gear-Wheel,

infront gearing "connected with the front end of the counter-Shaft 22, and a crank for op- @rating the front gearing, substantially as de- '5. In a device of the class described, the combinationy of a machine :having a frame provided with a horizontal bar supporting the band-wheel ofthe machine, a main shaft journaled 011 the frame and on the horizonn tal bar, gearing connecting the main shaft counter-shaft, arear gear-wheel 13 slidingly mounted on the main shaft and having a clutch connection with the same and mesh- JAMES ROBERT OLIVER.

Y Witnesses:

W. F. ELKINS, C. M. MoRFoRD.

IOO

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