US606262A - Sash lifter and lock - Google Patents

Description

(No Model.)

' G. 0. YOUNG.

SA$H LIFTER AND LOOK.

Patented June 28,1898.

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llniinn STATES GEORGE CURSON YOUNG, OF WASHINGTON, NEW JERSEY.

SASH LIFTER AND LOCK.

SPECIFICATION forming part of Letters Patent NO. 606,262, dated June 28, 1898.

Application filed July 29, 1897. Serial No. 646,352. (No model.) I

To all whom it may concern:

Beit known that LGEoRoE OURsoN YOUNG. a citizen of the United States, residing; at Washington, in the county of Warren and State of New Jersey, have invented certain new and useful Improvements in Window- Sash Lifters and Locks, of which the following is a specification.

This invention relates to certain new and useful improvements in combined lifting and and it consists, substantially, in such features lockin g devices for the sashes of windows; of construction, arrangement, and combinations of parts, as will hereinafter be more particularly described.

While being applicable to Window-sashes generally, my invention is intended more particularly for use in connection with car-windows and the objectof the invention is the provision of exceedingly simple and effective devices whereby the window-sash is easily raised and lowered to any height within the range of movement thereof, and when so moved is automatically engaged or locked in position, and thereby prevented from rattling,

either from the motion of the cars or from elementary causes.

A further object of the invention is the provision of devices of this character which renders it impossible to raise or lower the window-sash from without, as well also as .to dispense with the use of weights or balances, which are essential with many forms of sashlifters at present in use. p

A still further object isthe almost complete inclosure or concealment of the operative devices from view, whereby the devices are not only protected from injury by dust and dirt, but they are not easily tampered with, and therefore are not so liable to become disarranged.

The above objects are attained by the means illustrated in the accompanying drawings, in which- Figure 1 is a front elevation of a car-Window embodying in connection therewith the combined lifting and locking devices constructed and arranged in accordance with my invention, certain parts being removed, to indicate more clearly the disposition of the devices, and other parts being in section. Fig.

2 is a vertical sectional elevation taken on the line m x of Fig. 1. Fig. 3 is a horizontal sectional plan view taken 011 the line y 'y of Fig. 1. Fig. 4 is a view in detail representing the operation and arrangement of the auxiliary locking device preferably employed in' the practice of my invention and'Fig. 5 is another view of the auxiliary locking device,

parts being broken away.

While my invention is capable of a great .many different embodiments, I preferably resort, to the general construction and arrangement of parts such, for instance, as I have illustrated in the accompanying drawings, wherein- 1 designates .an ordinary sash-frame of a car-window, while 2 represents the upper sash of the window, Which, as shownherein, is immovable or permanently fastened within the frame, but which, as is evident, could be made to slide up and down in suitable guides of the frame, or, if desired, in lieu of this the said upper sash may consist only of a screen for ventilating purposes, in which lattercase the movable sash would be ,made to extend the whole height of the window-frame when closed or else only one-half the height, accordingly as maybe desired. The lower or movable sash is indicated at 5, and this sash moves in the ordinary way betweenvertical guide strips or beads, while attached or secured to the under side thereof in any suitable way are two vertical rack-bars 6 6,'arranged at opposite sides of the sash and in alinement with the side portions '7 7 thereof, which rack-bars also move in'suitable channels or guides formed in vertical wooden strips :8 ,8, suitably secured'in place between the double 'walls of the car-body; These said rack-bars are engaged by a set of enlarged gear-wheels 8 8,mesl1ingwith each other, as shown, and having their bearings at 9 9 in a metal strip or cross-piece 10, secured in horizontal position between the inner and outer walls of the car-body, and oneof the enlarged gear-wheelshas its shaft extended inwardly and is supported or has its bearing in additional horizontally-disposed metal strips or plates, (designated at 14 and 15.) These said plates are firmly secured in position by means of bolts or screws .16, passing through the same at or near the ends thereof and entering suitable blocks 17, and in order to accom- ICO modate a smaller gear-wheel 18 and an engaging pinion 19 the said metal plates or strips 14: and 15 are separated or held apart a suitable distance by means of spacing blocks or strips 20. The said gear-wheel 18 is keyed or made fast to the shaft or axis of the extended shaft 20 of one of the enlarged gear- Wheels, and the pinion 19, en gaging therewith, is made fast toa tubular bearing-sleeve 21 a short distance from the inner end of the latter, and the arrangement is such that when the said pinion is turned to the left the movable sash will be lowered, and when turned to the right it will be elevated or raised. The said tubular bearing-sleeve is notched at its inner end all around the edge in such manner as to constitute one-half of a clutch device, through the medium of which the sash is automatically locked at the point to which it may be raised or lowered, the said notches being indicated at 25 and the intervening teeth or projections at 26. It will be observed that the straight sides of the said teeth or projections are at the left, while the beveled or inclined faces thereof are at the right. The other half of the clutch or locking device is indicated at 27, the same being correspondingly notched at 28, with the straight and inclined or beveled faces or edges of the teeth thereof arranged opposite those of the other half of the clutch, so that it is evident that when the tubular bearing-sleeve 21 is turned to the right the inclined faces of its teeth or projections will slip past the inclined or beveled faces of the teeth of the part 27 of the clutch, and thus cause the straight edges of the two sets of teeth to become engaged in such manner as to prevent the turning of the bearing-sleeve in the opposite or reverse direction.

In'order to effect the desired working of the parts, the part 27 of the clutch or locking device is provided with an extension 30,which passes through the tubular bearing-sleeve 21 and which is hollow and screw-threaded interiorly at its outer end, so as to adapt the same to receive the screw-threaded stem 31 of a push-button or lever 32, and the said tubular bearing is also formed or provided at its outer end With a small hand-wheel 33 for enabling the proper and easy manipulation of the devices, as will hereinafter be more fully explained. The said sleeve, it will be observed, has its bearing in the metal cross plates or strips 1 f and 15. The part 27, constituting the inner half of the clutch, is held or supported at the end of a metal spring 35, attached to the inner metal cross-strip 10, the tendency of which spring being to force the said inner half of the clutch into engagement with the teeth of the tubular bearing 21, which, as before stated, constitutes the outer half of, the clutch. It will be seen also that by reason of the outward pressure exerted by the spring the rod or extension of the part 27 will be pressed outward. beyond the hand-wheel, and to release the two parts of the clutch it is simply necessary to apply the thumb or finger to the push-button and push upon the rod or extension 30, whereupon the teeth of the clutch are disengaged and the window-sash can then be readily lowered.

While it has been found that the clutch itself is of sufficient strength under ordinary circumstances to prevent the window-sash from being lowered from without or by the mere application of a slight force, I prefer to use in connection therewith an auxiliary locking device or lever, which is indicated at and which constitutes practically a part of the clutch. This locking device or lever, as will be observed, is united with the inner half 27 of the clutch and extends over and rests upon the shaft 20, to which the gearwheel 18 is keyed, or may be engaged in a slot in the gear-wheel, the free end thereof being formed with a hook which ext-ends around the said shaft substantially in the manner indicated. As the hand-wheel is turned in the direction necessary to effect the raising or elevation of the movable sash, the said auxiliary locking device or lever simply rises and falls with a slight movement, while also conforming to the action of the clutch device; but whenever the said hand-wheel is attempted to be turned in the reverse or opposite direction the hooked end of this lever 40 will become engaged with the under side of the shaft 20 and it will require a force necessary to absolutely break either the said shaft or lever before the lowering of the sash can take place in this way. It will thus be seen that in addition to the ordinarily secure engagement which is effected between the straight edges or sides of the clutch-teeth an arrangement is thus had which absolutely prevents injury or disarrangement to the parts if subjected to excessive or violent strain.

My improved devices are mounted in the space between the inner and outer walls of the car-body directly beneath the window, and it is of course understood that they are completely inclosed by the said walls, so that no dust or dirt can gain access thereto. order to exclude the hand-wheel as much as possible from View, the arrangement is such as to bring the wheel at a point beneath the ordinary side arm of the car-seat, and the occupant of the seat has only to reach over and turn the wheel to the right whenever it is desired to elevate or raise the sash, and as soon as the wheel is released the clutch becomes locked in such manner as to require to be separated in the manner hereinbefore described before the window-sash can be low cred.

The relative dimensions of the several gearwheels and other operative parts is intended to besuch that a single turning of the hand wheel will suffice to elevate the sash its full height, and it is clear that the parts will operate positively and with certainty under all circumstances.

IIS

I am not confined to the precise details of construction and arrangement herein shown and described, since various changes could be adopted in the practice of the invention, accordingly as the invention is to be applied to car-windows or to the windows of houses, and while I have shown and described the invention as being inclosed within the inner and outer walls of a car and prefer to so arrange it, it will be readily understood that the mechanism may be supported upon the outer face of one of the car-walls and left exposed to view, or it may be boxed in, if desired.

The devices are simple, easy to manipulate, and not liable to soon get out of order.

I claim- 1. In combined lifting and locking devices for window-sashes, the combination with the movable sash, of rack-bars depending from said sash at opposite sides thereof, one or more pairs of gear-wheels meshing with each other and with the racks, an additional gearwheel, and a pinion meshing therewith, and means for operating said wheels in a direction to elevate the sash, and means for checking or looking the said devices against movement in the opposite direction until released by hand, substantially as described.

2. In combined lifting and locking devices for window-sashes, the combination with the movable sash, of rack-bars depending from said sash at opposite sides thereof, one or more pairs of gear-wheels meshing with each other and with the racks, an additional gearwheel and an engaging pinion, means for operating said devices in a direction to elevate the sash, means for automatically locking said devices against return movement until released by hand, and an auxiliary locking device, the whole operating substantially as described.

3. In combined lifting and locking devices for window-sashes, the combination with the movable sash, of intermediate rack-and-gear mechanism for operating said movable sash, and a two-part clutch yielding to movement in one direction and resisting movement in the opposite direction, and a spring-actuated push-rod for holding the parts of the clutch together as well as enabling the separation of said parts, substantially as described.

4:. In window-sash-lifting mechanism, the combination with the movable sash, of rackbars depending from said sash at opposite sides thereof, two gear-wheels of equal diameter intermeshing with the racks and with each other, and means for rotating one of said gears, substantially as described.

5. In combined lifting and locking devices for window-sashes, the combination with the movable sash, of intermediate rack-and-gear mechanism for operating said movable sash, the tubular bearing-sleeve constituting one part of a clutch at its inner end, and carrying a pinion meshing with said gear mechanism, a spring supporting the other part of the clutch which engages with the first part, and a push-rod attached to the inner part of the clutch and extending outward through the tubular bearing-sleeve and provided with a push -button or lever, substantially as described.

6. In combined lifting and locking devices for Window-sashes, the combination with the movable sash, of rack-bars depending therefrom on opposite sides, a pair of gear-Wheels meshing with each other and with the racks, one of said wheels having an extended shaft or axis, an additional gear-wheel carried at the inner end of said extended shaft, and a pinion meshing therewith, the spring-pressed two-part clutch operating and constructed as described, and the auxiliary locking-arm formed with the inner part of the clutch and having its outer end turned over the extended shaft, substantially in the manner and for the purpose set forth.

In testimony whereof I have signed my name tothis specification in the presence of two subscribing witnesses.

' GEORGE CURSON YOUNG.

Witnesses:

CHAS. D. V. BIssET'r, WM. L. BowNE.

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