US93995A - Improved sash-balance - Google Patents

Description

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SAMUEL W. HUNTINeToN, or AUGUSTA, MAINE.V

Letters Patent No; 93,995,` dated August24, 1869:'. i

' The Schedule referred to in theae Letters Patent and :baking part of same.

To who-m it may concern Be it known that I, SAMUEL W. HUNTINGTON, of

Augusta, ,in the county of Kenneb'ec, and State of Maine, have invented certain new and useful Im-l place.

Figure 3 is a section of the same on the line y, ii g. 2:

My invention relates to that classer" balaucvsh in which a rack, on the sash, is combinedivith an intermediate pinion and a weighted rack, whicli'serves to counterbalance the sash. I ani aware. that sashes have been made ou tlle'same general plan, and I make no broad claim to this feature.

My invention is directed to the remedying' of de- 'fects which have heretofore existed in such sashes,

and have prevented theiruse to anygreat extent, and its object is to so .construct and arrange the parts as to render the devices easy of application,-e`ective in operation, and capable of` being made and used with little trouble or expense.

The nature of' `my invention can be best explained hy reference to the accompanying drawings, in which- A represents the window-frame, and B, the sash es, the latter having attached to them, by any ordinary or suitable means, vthe racks a, which 'engage with pinions b, set in the window-jambs, as will be understood hy reference to the drawing, and vwithout further explanation;

The pinions b are so set in the` jambs that their teeth shall slightly enter grooves or recesses c, formed on the further side of the jarnbs opposite each rack?, on the upper and lower sashes.

Phese grooves, thus cut in the Wood, extend the height of the window, and are ii nded-'to receive the weighted balance-racks (l, wh 'ow `e'ver, are not guided by and need' not it accu but' have shoulders c formed on :them ivl1ich fit and slide in a slot, f, cutin a strip of nail-plate, g, or other metallic strip, adapted for: the purpose, which covers each groove, and'is attached to the jamb by screws, so as to securely hold each rack [l in the groove in which it is placed.

The advantages of this arrangement are, that while the racks are received in the body of the jainb, and thus do not occupy unnecessary room, they neverthelyj said grooves, i

less are not required to fit the grooves, as this would render them liable to be jammed, or otherwise rendered inoperative, owing toswelling or contraction or splitting of the wood, but are provided with the xed V,and invariable ways formed in the nail-plate, in which `their shoulders t and slide..A Andagaimall the devices attached to thejamb, the pinions, racks, and

guide-plates, may be fitted in place before the jamb isjset in position, andy the-latter'can then berxed to the otherparts of the window with thesame ease and' in the samemanner that an ordinary7 jamh is.

Under this arrangement there is little or no possibility ofthe balance-racks getting out of order, no more room is taken up than in cases where such devices are not employed, and the cost of manufacture is very smallv The formation vof thev'grooves adds nothing to the expense, the slotted strips of nailfplate or sheet-metal can be struck out at a triiiing cost, and the racks themselves oost but little more. l The arrangement also enables me to readily attach additional Weights h, when required, they being placed outside the grooves andjplates, and secured by nuts i to the shoulders of the racks, as indicated in the drawing.

Incase, however, these devices are applied to canwiudows, for which I have more especially designed them, the auxiliary weights 71I need not be applied, as the rackscan, themselves, be' made of sufficient Weight.

In other cases, however, the weights may be necesi sary. v- 1 It is of course understood, that each balance-rack ,is about half the weight of the window-sash, so that the weight 'of each set of racks will counterbalancc that of the sash to which they are applied.

Having now described my invention, and the manner in which the same is or may be carried into ef# feet, i

What I claim, and desire to secure by Letters Iatracks in place, andi-'forming ways, in which the pro jectingportions of the racks move and are guided, in

combinationwith the window-sash, its racks, and in .termediate pinion, as herein set forth.

vIn. testimony whereof, I have Vsigned my rname to this specication; before two subscribing witnesses. 1 S. W. HUNTINGTON.

Witnesses:

M. BAILEY, 'EDM F. BROWN.

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