US1159614A - Sash-holder. - Google Patents

Description

C. S. SWIFT.

' SASH HOLDER.

,15 ,614. PL-CANON "LED JULY22,1915.

COLUMBIA PLANOGRAPH COHWASIHNGT w Patented Nov. 9, 1915.

3 SHEETSSHEET 1.

' C. S. SWIFT.

SASH HOLDER.

. APPLICATION FILED 1U YZZ, l9 1,159,614. 1 L Patented Nov. 9, 1915.

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SASH HOLDER. APPLICATION FILED JULY 22. I915.

Patented Nov. 9, 1915.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

CHARLES S. SWIFT, OF NEW YORK, N. Y.

SASH-HOLDER.

Application filed July 22, 1915.

T 0 all whom it may concern Be it known that I, CHARLES S. Swrrr, a citizen of the United States, and a resident of New York, county of New York, and State of New York, have made and invented certain new and useful Improvements 1n Sash-Holders, of which the following is a specification.

My invention relates to a new and useful improvement in window locking mechanisms and more particularly to a novel sash holder, wherein the sashes of the window may be locked when the same are in their closed position, or the locking mechanism may be so set that either sash may be opened only a slight distance.

It is oftentimes desirable for the purpose of ventilation to leave the sash part way open from the bottom or from the top, and at the same time be able to lock the same in this position or to prevent it from being opened a greater distance.

In the device herein illustrated the sash may be locked in its closed position or the lock may be so set that the window can be raised for a short distance only, and such distance not being great enough to admit the body of an intruder. Furthermore the locking mechanism is so designed that when the device is so set that the sash can only be opened for a short distance, it will be impossible to raise the sash to its full open position, even though the handle of the lock be turned, unless first the partly open sash be fully closed. In other words, an intruder cannot simply place his arm through the opening below the lower sash or above the upper sash if the same be open and rotate the locking mechanism unless, the partly open sash first be fully closed, which is not possible if his arm extends through the opening.

An object therefore of the present invention is to providea sash holder and locking mechanism wherein both sashes may be locked when the same are in their closed position or both sashes may be limited to a partly open position.

Still another object of my invention is to providea locking mechanism of the class described wherein it will be necessary to close the partly open sash before the sash can be opened to its full extent and the mechanism released for such movement.

Specification of Letters Patent.

Patented Nov. 9, 1915.

Serial No. 41,230.

Still another object of my invention is to provide a lock of the class describedcom sisting of but few parts, easy to assemble,

occupying but little space and cheap to manufacture.

lVith these and other objects in view my invention consists in certain new and novel constructions and combination of parts as will be hereinafter more fully described and pointed out in the claims.

In the drawing forming a part thereof Figure 1 is a front elevation partly in section of a window with the invention applied, and showing the lower sash limited to a part way open position. Fig. 2 is a fragmentary perspective view of one edge of the upper sash. Fig. 3 is a perspective of the complete sash holder or locking mechanism;

and detached from the frame of the'window.

Fig. 4 is a detail perspective view of the locking dog or arm. Fig. 5 is a sectional view of the sash holder that cooperates with the lower sash and showing the said sash in its closed and locked position. The pawl however is shown in front of the arm for the sake of clearness. Fig. 6 is a similar view showing the beginningof the operation of releasing the locking dogs, the dotted lines showing a continuation of the movement. Fig. 7 is a sectional view showing the locking mechanism released, and the lower sash in a part way open position. Fig. 8 is a similar view of the locking mechanism in the same relative position as shown in Fig. 7 but being the locking mechanism that cooperates with the upper sash.

Referring now to the drawings and particularly to Fig. 3, a base plate 1 is provided having oppositely extending end portions 2 and 3, and disposed on the opposite sides of the plate are the bearing posts 4: and 5, in which is journaled the main operating shaft 6, which is provided at its one end with a key or handle 7 and formed on said shaft are the two contacting or crank arms 8 and 9, which are'preferably formed integral with the shaft 6 and are disposed parallel to each other.

Formed in the base plate 1 are two parallel slots 10 which are directly beneath'the arms 8 and 9 and which allow the said arms when rotated to pass therethrough.

Located on and also formed integral with the operating shaft 6 are the two cams 11 I and 12 which are much shorter in length than the arms 8 and 9, which arms are also parallel to each other but positioned to extend in directly the opposite direction to the aforementioned arms 8 and 9.

Located on the aforementioned arms 8 and J and at a slight distance from the inner ends thereof are the stubs or pinions 13 and 11- which contact with two arcuate stops when the said stops are in a certain position.

The base plate is further provided with the bearing posts 15 and 16, the one 15 being slightly different from the bearing 16 as it has preferably one of the posts enlarged as at 17 to form a bearing for the pawl 18,

which is pivoted as at 19 and which pawl contacts in its outmost position with a stop located on said post as at 90. Pivoted in these bearings 15 and 16 are the two looking dogs 21 and 22 which, as will be noticed extend in the opposite directions, the upper ends of which however are directly beneath the main operating shaft 6. These dogs are free to pass through a second pair of slots in the base plate 1. The form or shape of these dogs is clearly shown in Fig. -l, and it is to be understood that a description of the one will be a description of the other.

The dog is provided with an enlarged portion at its one end, and a notch or a stop is cut in its outer edge which portion contacts with the catch mechanism located in the window sashes, also formed on the enlarged portion of the locking dog is a projecting lug 29 which limits the inward movement of the same.

The upper end of the locking dog is cut away as at 26, and secured to one side of the same is the arcuate stop 27, which is recessed at 28 and which recess is in alinement with a second recess 30 in the cutaway portion 26 of the locking dog or arm 21. Positioned conveniently behind each of these locking dogs 21 and are the springs 31 and which will normally force the sash contacting portion of the dogs normally inwardly.

A turning of the operating shaft 6 therefore will force the cams 11 and 12 against the upper portion of the locking dogs 21 and and thereby force the inner ends of both inwardly and naturally trie outer ends outwardly or away from the window sashes.

A further revolution of the shaft will cause the studs 13 and 1 on the arms 8 and 9 to pass behind the arcuate stop members 27, so that even though the window sashes were forced against the enlarged por tion of the locking dog, the studs 13 and 1% will be behind the stop member 27 and prevent the arms from rocking on their pivots.

Referring now especially to Figs. 1 and 2 it will be seen that both sashes are pro vided both at their upper and lower ends with slots or grooves 38 and 3%, and that both sashes are also provided with a catch member 35, which is spring pressed and free to move inwardly though normally held in its outward position. The sash is also grooved to allow for the movement of this spring pressed member and provided with a cover plate 10. The purpose of these slots and 8%, (and taking for illustration the lower sash) is that the arm 8 of the operating shaft 6 may be revolved and pass through the slot 33, and as the upper sash is in its closed position the slot in the lower portion thereof also will be in alinement with the arm 9 and thereby allowing the operating shaft 6 to be rotated.

T he pawl 18 prevents the operating shaft 6 from being rotated in the reverse position,'as if this were not present, when the window sash was in its part way open position. an intruder could simply place his arm through the open space and revolve the key in the wrong direction thereby forcing the cams against the locking dogs to release them from their looted position.

lVhen the upper and lower sashes are closed the outer ends of the locking dogs will contact with the catch mechanism and prevent either window from being raised, and the locking mechanism for the upper sash will be in exactly the same relative position as the lower.

To release the locking mechanism tne operating s left is turned and the slot 33 in the lower window is directly behind the arm 8 and the lower slot in the upper sash also directly in line with the arm 9, the operating shaft may be revolved and the cams 11 and 12 will contact with both locking dogs and force the inner ends inwardly and the outer ends outwardly thereby permitting the raising and lowering of both window sashes.

it now it is desired to permit the lower sash for instance to only raise a portion of the way the operating shaft is again revolved, allowing the locking dogs to again spring to their locking position and the enlarged portion of the locking dog will then contact with the lower portion of the plate a0 in the window sash, thus preventing any further opening movement of the lower sash. Furthermore the operating shaft 6 cannot be revolved until the lower sash is closed to its lowermost position, as the arm 8 will contact with the edge of the sash, as the groove 33 is above the said arm. The shaft cannot be reversed inits movement, as the arm 8 would also contact with the pawl 18. To therefore revolve the operating shaft 6, it is necessary to lower the open sash, and the spring pressed catch mechanism will be forced inwardly and the groove tical with that just described of the lower sash, it being understood that the little catch member 35, is however also reversed in the upper sash.

in Figs. 7 and 8 the position of the parts clearly shows the window sashes in a partly open condition; show the locking dog out of its locking position, and show the groove in the sashes not in alinement with the arms 8 and 9, so that either sash will have to be raised or lowered to its closed position before the operating mechanism can be turned.

From the foregoing it will be seen that a. threeouarters movement of the operating shaft will force the locking dogs out of position, and that the remaining quarter move will allow them to spring back in place. However both windows have to be in a closed position before the operating shaft can be revolved.

The purpose of a slot in the upper portion of the upper sash and in the lower portion of the lower sash is, that if anyone happened to turn the mechanism from the inside when the upper sash were at the bottom of the frame or the lower sash at the upper portion of the frame, these slots would register with the arms so that the operating shaft 6 could again be turned. If these additional slots were not provided it would be impossible to turn the operating shaft forward, as there would be no allowance for the swing of the arms, and the same could not be revolved in the opposite direction, as the arm 8 would contact with the pawl 18 and be held against further movement.

It will be readily seen that the device could be made with but one locking dog and in this instance it would be used to be able to lock say a lower sash'when in its closed position or prevent that sash from. being raised when locked to alimited opening.

From the foregoing it will be seen that the sashes may be locked in their closed position or that the upper sash may be opened a part way, but held against further clownward movement, or on the other hand the lower sash may be open part way and held against further upward movement, and it will be necessary to close the same before the operating mechanism may be actuated.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1. A sash holder comprising a base, a lockin dog pivoted thereon, a shaft provided with means for contacting with and operating said locking dog, an arm carried by said shaft and adapted to pass through an opening in said base.

2. A sash holder comprising a base, a locking dog pivoted thereon, a shaft provided with means for contacting with and operating said locking dog, an arm carried by said shaft and adapted to pass through an'opening in said base and means to prevent the shaft from rotating in a reverse direction.

3. A sash holder comprising a base, a locking dog pivoted thereon, a shaft provided with a cam for contacting with and operating said locking dog, said locking dog provided with an arcuate stop near its upper end, an arm carried by said shaft and adaptedto pass through an opening in saidbase and means carried by said arm to contact with said arcuate stop when the said shaft is in a locked position to thereby prevent the pivoting of said locking dog.

4. A sash holder comprising a base, a looking dog pivoted thereon, a shaft provided with a cam to contact with the upper portion of said locking dog, an arcuate stop located on the upper portion of said locking dog and directly beneath the said shaft, an arm on said shaft adapted to pass through an opening in said base, and a pinion located on said arm and adapted to pass behind said arcuate stop to thereby prevent the pivoting of said locking dog.

5. A sash holder comprising a base, a locking dog pivoted thereon and means connected with said locking dog to normally hold,

the same in an outward position, a shaft provided with a cam located above said locking dog and adapted to contact with and operate the same, an arcuate stop carried by said locking dog and directly beneath said shaft, an arm carried by said shaft having a pinion located thereon and adapted to pass behind said arcuate stop when said shaft is rotated to thereby prevent said locking dog from being forced inwardly, a pawl located at one side of said locking dog to be tripped by said arm and prevent the same from being revolved in a reverse direction.

' 6. A sash holder comprising a base, a plurality of locking dogs pivoted thereon, said locking dogs being disposed in the opposite directions, a shaft extending transversely of said locking dogs and provided with a plurality of cams to contact with and operate said locking dogs, a plurality of arms car-c ried by said shaft and adapted to swing through openings in said base when said shaft is rotated. r

7. A sash holder comprising a base plate, a plurality of locking dogs pivoted thereon and extending in the opposite direction, the

upper end of said locking dogs being cut away, a transverse shaft extending above said locking dogs and provided with a plurality of cams to contact'with the upper end of said locking dogs when the said shaft is rotated, stops located on said locking dogs and means connected with said locking dogs to normally hold the same in an outward position, arms carried by said transverse shaft and disposed parallel to each other and adapted to pass through parallel openings in said base plate when said shaft is rotated and pinions on said arms to contact with the said stops.

8. A Window sash provided with a groove in its upper portion. and the catch mechanism located in the edge thereof in combina tion With a base plate provided with a locking dog, a shaft for operating said locking dog, an arm on said shaft and adapted to pass through an opening in said base plate and in the groove in the upper portion of said Window sash when the sash is in its lowermost position.

9. A Window sash provided with a groove in its npperportion, a longitudinally extending plate provided with a longitudinally extending slot located in an edge of said sash, a spring pressed catch member located. in one end of said longitudinally extending plate, in combination With a base plate pro vided with a locking dog, a shaft for operating said locking dog to force the same in and out of contact with said catch member in said longitudinally extending plate, an arm carried by said operating shaft adapted to pass through an opening in said base plate when said shaft is rotated and pass through said groove in said Window sash when said Window sash is in its closed position.

Signed at New York and State of New York this 21st day of July A. D. 1915.

CHARLES S. SWIFT. lVitnesses A. M. LINDENSTRUTH, JOHN C0011.

Copies Of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C

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