US532395A - Sash-lock - Google Patents

Description

(No Model.) P. S. RIDDELLE.

SASH LOCK.

No. 532,395. Patented Jan. 8, 1895..

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PHILIP S. RIDDELLE, OF \VOODSTOCK, VIRGINIA.

' SASHYY-LO'CK.

SPECIFICATION forming part of Letters Patent No. 532,395, dated January 8, 1895. Application filed April 16, 1894. Serial No. 507,729. (No model.)

To aZZ whom it may concern:

Be it known thatI, PHILIP S. RIDDELLE, a

citizen of the United States,residin g at Woodstock, in the county of Shenandoah and State 5 of Virginia, have invented new and useful Improvements in Sash-Locks, of which the following is a specification.

. In that type of sash and otherlocks wherein a sliding spring-projected bolt is retracted by [O a wedge-shaped slide, movable in engagement with the bolt at right angles to the axis thereof, it is desirable to lock the bolt projected,

so that the sash is securely held in its adjusted position, and if more or less raised and r 5 held is not liable to fall by the accidental retraction of the bolt. 7 It has heretofore been proposed to lock-the bolt in its projected or locked position; but-prior locking devices are complicated and expensive, and do not in 2:0 fact constitute a part of the bolt and bolt- -projecting slide themselves.

The chief object of my invention is to provide a novel, simple, efficient, and durable lock particularly designed for holding the window-sashes of railway cars in any position to which adjusted, but useful as a bolt for doors and other purposes not necessary to specifically 'mention.

The invention also has for its object to provide very simple and economical means for rendering it impossible to retract the bolt when the slide and bolt are in their normal locking positions, whereby the sash or other object locked cannot be unlocked by burglars or outside persons pushing back the bolt, while the sash, it raised and locked, cannot fall by the accidental retraction of the bolt. To accomplish these objects my invention consists essentially-in the combination of a sliding bolt having a locking notch or recess, and a wedge-shaped slide moving in engagement with the bolt at right angles to the axis thereof, and having a locking-finger or stud to enter the locking notch or recess when the bolt is projected for the purpose of preventing the bolt being retracted until the wedge slide is intentionally operated for that pur pose.

The invention also consists in certain other features of construction and combination or arrangement of parts hereinafter described and claimed, reference being made to the accompanying drawings, in wh1ch Figure 1 is a perspective view of the 1mproved Jsash lock. Fig. 2 is a perspective view of the casing, bolt and slide, showing a part of the bolt in section. Fig. 3 is a perspective view of the cover or cap-plate. Fig. 4 is a detail sectional View, showing a modification of the invention; and Fig. 5 is'a de- 6o, tail sectional view of a modified construction of bolt.

In order toenable those skilled in the art to make and use. my invention, I will now describe the same in detail, referring to the drawings, where I have illustrated my invention in connection with a rim-lock, comprising a casing 1, and a cover or cap-plate 2, adapted to be secured to the casing through the medium of screws passing through the screw holes 3 and engaging the screw-holes 3 of the casing. The interior surfaces of the casing and the cover or cap-plate are suitably constructed to receive and permit the necessary movements of the sliding-bolt 4, '7 5 and the Wedge-shaped slide 5 which is employed to retract the bolt against the tension of a suitable spring. The bolt is preferably cylindrical, and is provided with a longitudinal slot 6, through which the upper end of the wedge-shaped slide 5 extends, and between one end of the slot and the wedge face 7 of the slide, is arranged an anti-friction roller 8, for the purpose of rendering the parts susceptible of easy operation. 8 5

A coiled or other. suitable spring 9 is ary ranged in a recess of the casing to act upon the sliding bolt, so that when the bolt is retracted by moving the wedge slide 5 upwardly,

the spring will be compressed, and when the slide is released from pressure, the spring will automatically shoot or project the bolt, and restore the slide to its normal position,

In a sash-lock of the character described and shown, it is desirableto lock the bolt in 5 its projected position, and this I accomplish in a very simple and economical manner by providing the inner end portion of the bolt4 with a locking notch or recess 10, adapted to receive a locking-stud or finger 12, formed on the extremity of an overhanging arm 13 which is integral with the wedge-slide 5, in such manner that when the bolt is projected and notch or recess 10 and renders it impossible.

for the bolt to be retracted until the wedgeslide 5 is intentionally raised for the purpose of disengaging the finger or stud 12'from the notch or recess 10, and causing the wedgeface or incline 7 of the slide 5 to retract the bolt into the casing.

The wedge-slide may be moved lengthwise for retracting the bolt by any means suitable for the purpose, but, preferably, I provide'a lever 14, pivoted to the casing l by a pivotpin 15,, and having one end formed into a tinger-piece 16, and the opposite end curved or extended upwardly into an arm 17 which bears against the lower end of the slide, so that by depressing the finger-piece 16, the upwardly projecting arm 17 will raise the slide and thus disengage the locking-finger or stud 12 from the locking-notch or recess 10 and retract the bolt into the casing.

To facilitate the operation of the lever 14, I provide the cover or cap-plate 2 with a rigidly projecting arm or finger-piece 18, which is in such position on the cover or cap-plate that it lies below the finger-piece 16 of they lever and affords a fulcrum for the fingers while depressing the finger-piece 16.

Instead of employing the pivoted lever 14 for raising or moving the Wedge-slide to retract the bolt, I may prolong the body of the wedge-slide, so that it of itself constitutes a handle 19, Fig.4, which may be grasped or manipulated to raise the slide.

In the modified construction exhibited by Fig. 4, the same reference numerals indicate parts corresponding with those above described with reference to Figs. 1 and 2, and, therefore I do not deem it necessary to enter into a detailed description of Fig. 4, as the-construction and operation Will be obvious from the foregoing explanations.

In Fig. 2 the anti-friction roller can be inserted into the bolt through the slot 6, and then secured in position by a transverse axle 20; but, insteadof this particular anti-friction roller 8, I may employ a ball 21, Fig. 5, which can be inserted through an enlarged bore formed in the inner extremity of the bolt and confined by a transverse axle or pin 22.

The lock-casing may be attached to the window-sash or other object in any suitable manner, but, as here illustrated, the cover or cap-plate 2 is provided at each end with a flange 23 having screw-holes 24 for the passage of screws by which to secure the lockcasing in position.

My improved lock is particularly designed for the window sashes of railway cars, and for this purpose it possesses advantages, in that if the sash is raised, it is impossible for the bolt to become accidentally retracted, which would permit the sash to suddenly fall and possiblycause damage or injury. Furthermore, if the sash is locked in any position, it cannot be moved unless the wedge-slide is intentionally operated, because the lockingfinger or stud engaging the locking-notch or recess effectually prevents the retraction of the bolt unless the slide is moved to disengage the bolt, and this is unlikely to accidentally occur, because the Weight of the slide, or the action of the spring, will normally hold the slide in its lowest position with the finger or stud engaging the notch or recess when the bolt is projected.

' The improved lock is useful for many purposes other than that specifically mentioned. It can be used on the window-sashes of dwell- ""ings and other buildings, and is a protection against burglars, or outside persons inserting instruments to retract'the bolt, so that the sash can be raised.

The simplicity of the device for operating the bolt and locking it in its projected or locked position renders it possible to very economically manufacture the device; and provides very efficient and durable contrivances for the purpose in hand, which are so arranged and so operate that they are not liable to become disarranged or inoperative.

Having thus described my invention, what I claim is 1. The combination of a sliding-bolt having a locking-notch or recess, means forprojecting the bolt, and a wedge-slide moving in engagement with the bolt'and carrying a locking-finger or stud to enter the locking-notch or recess and. hold the bolt projected, substantially as described.

2. The combination with a lock-casing, of a sliding-bolt having a transverse-slot and a locking-notch or recess in proximity to one end of the slot, a wedge-slide extending through the slot of the bolt for retracting the latter and carrying an arm having a locking-finger or stud which enters the locking-notch to hold the bolt projected, and a pivotedlever acting upon one end of the Wedge-slide for moving the latter to disengage the finger or stud from the notch or recess and retract the bolt, substantially as described.

3. The combination with a lock-casing, of a sliding-bolt having a transverse slot, and a locking-notch or recess in proximity to the slot, a wedge-slide extending through the slotted part of the bolt and having an arm provided with a finger or stud to enter the locking-notch or recess and hold the bolt projected, and a roller-bearing mounted on the bolt between the inner end of the slot and the wedge-slide, substantially as described.

In testimony whereof I have hereunto set my'hand and affixed my seal in presence of two subscribing witnesses. I

P. s. RIDDELLE. [1 s.] Witnesses? ALBERT H. NORRIS, NATHAN H. ROBBINS.

TIO

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