US51202A - Improved automatic fan for sewing-machines - Google Patents

Description

IJNITED STATES T. It. LOVETT, OF MOUNT AIRY, PENNSYLVANIA.

IMPROVED AUTOMATIC FAN FOR SE-WING-MACHINES.

Specification forming part of Letters Patent No. 5l ,202, dated November 2S, 1865.

To all 'whom 'it may concern:

Be itknown that I, T. R. LOVETT, of Mount Airy, in the county ofPhiladelphia and State of Pennsylvania, have invented a new and Improved Fan Attachment for Sewing-Machines; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is aview of my fan attachment applied to a sewing-machine table. Fig. 2 is a vertical section taken in the line x w, Fig. l.

Similar letters of reference indicate corresponding parts.

My invention consists in an improved inanner of arranging and applying a fan attachment to a sewing-machine, whereby the power required to operate it is reduced. It is more easily put out ofthe way when not in use, and every marring or injury of the machine is avoided.

To enable others to understand my invention, I will proceed to describe it.

A represents the table ofa sewing-machine,

a a, being its legs, and B the treadle for operrating the driving-wheel b, all ot the ordinary construction.

To the table A, and at the back thereof, and opposite the operator, I attach a standard, O, either by clamping the same thereto so thatit may be removed when desired, (E being a clamp suitable for the purpose,) or by securing it in any other suitable manner.

On or near the top of the standard the handle c of a fan, D, is hung by a pivot-joint, d, in such manner thatthe fan my be freely oscillated or swungup and down to agitate the air or produce currents therein for keeping the operator cool while at work.

To the outer end of the handle c (see Fig. 2) I attach acord or wire, c, and carry itdown over a pulley,f, at thelowerend of the standard, and secure a hook, g, to the end thereof'.

Another cord or wire, h, is attached to the treadle at the back part thereof, which is to be secured tothe hook g when it is desired to operate the fan.

At the end of the handle nearest the fan I attach an elastic cord or rubber strap, i, having a hook, k, which is to be hooked into a staple or hook, j, on thel standard C, the spring or elastic band i being of such a length as to draw down the front end of the handle, and consequently the fan D, after the treadle has d rawn down the other end ofthe handle through the medium ofthe cords or wires 7i c, and these, operating in conjunction, give to the fan the necessary up-and-down or oscillating motion.

A spiral spring or other contrivance may be employed instead of the rubber band or elastic cord z', if desired.

By unhooking the cord or elastic bandi the fan can he thrown upward and out of the rway; and by unhooking the cord or wire h the connection between the treadle and the fan will be broken and the fan will remain at rest; and, when desired, the whole arrangement can be removed from the table by unclamping the standard C therefrom.

This fan attachment is simple and operates well; the latter fact being demonstrated by the application of my fan attachment to a fullsized sewing-machine.

In the summer season it is very warm work to sit at a sewing-machine and operate the same, and it is impossible for the operator to cool herselt' by tanning, or otherwise, as both hands are employed, and it is inconvenient as well as troublesome to use any such fanning devices as are made to operate by clock-work. My fan attachment will therefore be found to be a very desirable and useful acquisition to a sewing-machine.

I am aware that Letters Patent were granted September 23, 1862, to W. I. Spence, for a fan attachment for sewing-machines. This, there fore, I do not claim.

My invention is superior to that of Spence in the following respects:

First, by the use ofthe springt'to move the fan in one direction I am enabled to dispense with the connecting-rod, thus reducing the weight ot' the apparatus, and consequently reducing the power required to operate it.

Second, by unhitching from the hooliy, the weight of the handle, or any suitable weight or hook applied to the rear side ot' the rockshat't, may be made to turn the fan into a vertical position completely out of the way when not wanted for use.

able, not bein g a permanent xture uponl the machine.

What I claim as my invention, and desire to secure by Letters Patent, is

The combination of the standard C, fan D,

Third, the entire apparatus rock-shaft d,spring hookj, and cord or Wire l1, e, all arranged to operate inthe manner and for the purpose set forth.

THOS. R. LOVETT.

Witnesses EDMUND WILcoX, WM. J. DELLE RU.

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