US2440026A

US2440026A - Sash latch

Info

Publication number: US2440026A
Authority: US
Inventors: Lawrence H Smith
Original assignee: VICTOR M LANGSETT
Current assignee: VICTOR M LANGSETT
Priority date: 1947-06-20
Filing date: 1947-06-20
Publication date: 1948-04-20
Anticipated expiration: 1965-04-20

Description

L. H. SMITH April 20, 1948.

SASH LATCH Filed June 20, 1947 M a m M v 9 6 d v a H M m m f m w 6 w 4 M 4 m.//// L M fl a Patented Apr. 20, 1948 SASH LATCH Lawrence H. Smith, Chicago, Ill., assignor to .Victor M. Langsett, Chicago, 111., as trustee Application June 20, 1947, Serial No. 755,856

1 This application is a continuation-in-part of m prior application (now abandoned) for Sash latch, filed January 1, 1945, Serial No. 570,879.

This invention relates to a sash latch for horizontally slidable windows used onautomobile buses.

Automobile buses are provided with horizontally slidable windows arranged in a frame which are so mounted with respect to the bus body that they may be pushed or kicked outwardly in cases of emergency. The windows in buses, due to vibration encountered in travel, are relatively hard to open and, when opened, normally tend to j open wider than intended or to close by the vibration of the bus. I

It is therefore the primary object of the pres ent invention to provide a new and improved sash lock or catch for maintaining the bus sash in either closed position or open position, and to maintain the sash in such position.

Another important object of the invention resides in the provision, of a flexible or resilient means applied to horizontally operating sash so as to maintain the sash either in its open or in its closed position, to prevent creeping of the sash caused by allowing for easy operation.

A further object of the invention consists in the provision of a new and improved resilient sash latch which may be manufactured at an extremely low cost, which may be applied readily 2 Claims.

either to new sash or existing sash, which is strong and durable in construction and which is notlikely to get out of order.

Numerous other objects and advantages will -Fig. 1 is a detail elevational viewof apart of a bus body,-there being slidable sash provided therein, the sash lock being. adapted for application tothe sash;

Fig. 2 is a detailed cross section showing one form of the improved sash, frame andlatch of this invention;

' or other transparent material is mounted by means of resilientmaterial 20. A lip 2| extends Fig. 3 is a detailed sectional view of one modi fication of this invention;

Fig. 4is a longitudinal .section showing anotherrform of this invention arranged-in opera tive position. with respect to the window casing, parts-being, broken away for the'sake. of clearness; and I Fig. 5 is a cross section therethrough taken on the line 5-5 of Fig. 4.

The particular construction herein shown for the purpose of illustrating this invention comprises a .bus body I having a casing frame 2 mounted and positioned in suitable parts or portions of the bus body. Horizontally sliding sash 3, 3' are mounted in a window sash frame 4 and are adapted for longitudinal slidable movement in the frame. Each sash 3 may be slidable, or, if desired, one of the sash may be fixed and the other slidable relative thereto.

The window frame 4 comprises an angulated pre-fabricated member as clearly shown in Figs. 2, 3 and 5, and includes an inner. U-shaped'channel member 5 adapted to embrace a wall portion of the busbody I, and is heldthereto by means of a screw 6 passing through the casing frame 2 and a side 'I of thechannel 5. An indented porwith, is an elongated lip I2 extending the length of thewindow frame 4. This elongated lip I2 may be offset at I3, as shown in Fig. 2, or, if preferred, may be made a straight extension of the side II. Carried upon the elongated lip I2 is a strip I4 having spaced detents or depressions I5 which extend transversely across the member I2, spaced at regular intervals along the length thereof. The elongated strip I4 is aiiixed to the member I2 by means of rivetsIIi as shown in Fig. -2 or by welding or the like.

The windowsash 3 comprises a frame I'I having a U-shaped member I8 into which a glass I9 completely-across the-top of the sash -I| and is positioned opposite the U-shaped member I8 as shown: in Fig. 2. Resilient material 22 of any suitable composition forms a weather-tight seal between the frame 4, the sash I1 and the lip. 2I. The: lower side of the window frame I1 and the sash frame 4 may be of anyproper construction so as to permit islidable movement of the. sash and at the same time makela weather-proof and sash frame U water-tight connection between the and the window frame.

It is to be understood that while the particular window frame and sash construction described in the preceding paragraph is designated as being in the upper section of the sash and frame, this construction could be provided also or equally as well in the lower section of the sash and frame, without departing from the spirit of this invention. Obviously, if such a transposition is made, the upper sections of the sash and frame will be suitably constructed so as to permit slidable movement of the sash, and at the same time, make a weather-proof and watertight connection between the sash and frame.

A sash latch 23 of the "bullet type is provided in the sash frame II as shown in Fig. 2. A

spring 24, held in place by means of a screw tent to hold the window in place against vibration of the bus.

It is here further. pointed out that the compact assembly'ofthealatm and detent strip lends itself to a simple, economical and compact assembly, which canbeproduced and fabricated very economically. Obviously this structure like-.-

wise provides ready. accessibility to all of the parts subject-to wear in case repairs are needed.

It is further pointed .out that in-providin' in Fig.. 3, all of the, parts are similar to those shown and described relative to'Fig. 2 with the exceptionthat elongated detents flare provided inthe lip l2- prQb n-iinsteadof beingformed in a separate'strip i4. Obviously. this construction would n accordingly, may .bemore economical to produce.

In the modification of this invention shown in Figsd'and 5, there is a window frame 4 comprising an elongated pre-fabricaied element which includes an inner U-shaped channel ,21 which is aflixed to the bus body I by means of a screw 6 connecting the sash frame 2 to a side 28 of the U-shaped channel 21. .A depressed portion 29 is provided within the U-shaped channel 2! as shown in Fig. 5. i

In this embodiment of the invention, an outer U-shaped channel 30 is provided opposite the inner U-shaped channel 31 and comprises an elongated lip 3i on one side of the U-channel I! and a second elongated side 32 forming one side of the depressed portion 29 in the U-channel 30. Depending from and being a continuation of the side 32 is a lip 33 which may be off-set at 34, as shown in Fig. 5, or may be a direct continuation of the side 32 if desired. In this modification, the elongated lip 33 is provided to form a weather-strip for the window sash. which is also a function of the lip i2.

The window frame of Figs. 4 and 5, as in the embodiment of this invention shown in Fig. 2, comprises a U-shaped member 38 into which a glass or other transparent material it is mounted. A resilient material for securing the glass iS'in fixed position within the 1m 3 ake windowfr'ame lighter, and

is provided as shown. A lip 31 is provided on the window sash 38 and is surrounded by resilient material 22' as shown.

Elongated shoulders 38 are provided within the U-channel 33, which shoulders as receive an elongated strip 39 provided with detents 40, as shown in Fig. 4. A small recess 4i is formed in the U-channel to provide space to receive the backsportions of the detents u.

A sash latch 42 may be secured to a vertical bar or muntin 43 of the sash, being rigidly secured thereto in any desired manner, such as by means of screws or rivets 44. The latch 42 preferably is made in onepiece from resilient materiaL-such as spring bronze or the like, and comprises a straight part 4| which abuts a piece of the bar or muntin 43, as shown in Fig. 4. An upwardly extending part 46 of the latch is bent outwardly at an angle and terminates in the form of a hook or eye 41. The top of the member 41 is relatively round and smooth, as shown, for engagement with the detents in the strip 38.

' The recesses or indentations 40 are so spaced that a depression 40 will be engaged by the hook or eye 41 when the sash is in an open position, the indentations 40 being spaced so that certain definite degrees of window opening may be had. The sash latch 42 being made of flexible resilient material is adapted to slide across the indentations 40 when pressure is applied to the sash for openin'g'or closing. However, the resil iency of the latch 42 is suchthat the sash may be retained in closedaor adjusted open position when the eye 41 is in one of the recesses 40.

claims.

The sash, therefore, may be'slid to any position desired and then maintained in said position against vibration of the bus. by the resilient characteristics of the material from which the spring latch 42 is made.

Changes may be made in the form, construction and arrangement of the parts without departing from the spirit of this invention or sacriflcing any of its advantages, and the right is hereby reserved to make all such changes as fairly fall within the scope of the following 'Ihe invention is hereby claimed as follows:

1. In a sliding window structure adapted for use in a vehicle. the combination of a window frame having a channel shaped member with opposite sides, a slidable window sash having sliding engagement within the channel member in guiding relation thereto and with a clearance space between the channel member and the sash, said channel member having a flange carried thereby oflset relative to one side thereof and extending in overlapping relation with the adjacent frame member of the sash and overlapping the clearance space between the sash and channel member, and an elongated strip carried 'by the flange and extending longitudinally thereof,said strip having longitudinally spaced indentations located in a side face thereof opposing an adjacent side face of the window sash ar- 5 her having a flange carried thereby extending in overlapping relation with the adjacent frame member of the sash, said flange being provided with spaced indentations located on the inside face of the flange facing the opposite side of 5 REFERENCES CITED The following references are of record in the file of this patent:

Number Number UNITED STATES PATENTS Name Date Brufl Aug. 19, 1856 Dysart May 4, 1920 Manegold et a1 Feb. 17, 1925 FOREIGN PATENTS Country Date Great Britain Nov. 9, 1922 Germany 192'!