US2305957A

US2305957A - Dehydrator for double glazed windows

Info

Publication number: US2305957A
Application number: US333452A
Authority: US
Inventors: Edwards Harold
Original assignee: OM Edwards Co Inc
Current assignee: OM Edwards Co Inc
Priority date: 1940-05-06
Filing date: 1940-05-06
Publication date: 1942-12-22
Anticipated expiration: 1959-12-22

Description

Dec. '22, 1942. EDWARDS 2,305,957

DEHYDRATOR FOR DOUBLE GLAZED WINDOWS Filed May 6, 1940 Patented Dec. 22, 1942 DEHYDRATOR F R DOUBLE GLAZED WINDOWS Harold Edwards, Syracuse, N. Y., assignor to The 0. M. Edwards Company, 1110., Syracuse, N. Y., a corporation of New York Application May 6, 1940, Serial No. 333,452

This inventionrelates to double glazed windows such as are used in railway cars, buses, etc., and has for its object a dehydrator or dehydrator tube for absorbing the moisture content of the air between the glass panes, also a particularly simple mounting for the tube in th space between the glass panes and secured to one sash section only when the glass panes are held by opposing sash sections.

It further has for its object a dehydrating tube which can be handled without liability of the dehydrating material, which is usually granular, as activated alumina, from sifting or pouring out through the ventilating openings of the tube when the tube is being heldor handled with the ventilating Openings thereof downward, and also for preventing the dust from such material from passing through the ventilating openings 'out of the tube.

The invention consists in the novel features and in the combinations and eonstructionshereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawing in which like characters designate corresponding parts in all the views.

Figure 1 is a fragmentary elevation of a window construction embodying this invention.

Figure 2 is an enlarged sectional view on line 2-2, Figure 1.

Figure 3 is a fra mentary isometric view of the sealing strips of the sash, the dehydrating tube assembled therewith, and the mounting for the dehydrating tube. a

Figure 4 is a fragmentary, longitudinal sectional view of the dehydrating tube and one of the mountings therefor.

Figure 5 is a view, similar to Figure 4, of a dehydrator tube embodying sections with couplings between the sections.

Figure 6 is an end view of one of the mountings for the dehydrator tube.

Figure 7 is a fragmentary, isometric view 01' a modified form of the dehydrator tube.

' I have here shown this invention as embodied in a double glazed window in which the glass panes are mounted in sash sections which are I opposed to each other.

and 6 respectively of resilient material, as rubber.

' 4 Claims. (Cl. 189-64) compressible resilient material as rubber suitably held by each sectiond, 2, and extending between the margins of the glass panes. compressible against the margins of the glass panes and also against each other.

The sash sections I, 2 are clamped toward each other by suitable clamping means designated generally by the numeral l0 and operable by suitable means, as screws Ii, Figure 1. Usually, the outer sash section I, that is, the one toward the outer side or the car body is mounted so as to stay in place when the other sash section 2 is demounted or opened, the inner section 2 being usually the demountable or openable section, it being demountable or openable for the purpose of giving access to the inside of the glass panels for the purpose of cleaning them, or for renewing the dehydrating material, or for any other purpose. The construction of the clamping means l0 per se forms no part of this invention.

The sealing strips 1 and 8 tightly seal the space between the

glass panes

3, 4 against the interchange of air between the panes 3, l and the outer atmosphere outside or inside of the car body.

For the purpose of keeping the air in the space between the

glass panes

3, 4, as free of moisture as possible, a dehydrator is employed, this being usually mounted along the lower rail of the sash section.

"designates the dehydrator tube which may be of any suitable material, it being usually of thin metal or almuinum. The tube her shown is elliptical in cross section and is formed with ventilating peripheral openings in one side thereof, these openings being shown as perforations IS in Figure 3, and as a lengthwise slot H in Figure '7.

l5 designates a granulated dehydrating material, as activated alumina, in the tube, but not completely filling the same so that when the tube is laid over on one side, there is a space, as at M,

between the top surface of the material and the The ends of the tubeadjacent wall of the tube. are'closed by porous plugs IT. The plugs may be of gauze or cotton. 1

One of the features 01 this tube is means for preventing the granular material from sitting or pouring out through the perforations 13, or slot ll, when the tube is held with the perforated or slotted side downward, or is carried in an upright position. The means here shown is a strip or flap I 8 extending lengthwise of the tube and lying on the granulated material [5 under the perforations l3, or the slot I 4, so that when the tube is held in such a manner that the granular I and 8 designate respectively sealing strips of 5d material will move, or shift, toward the perfora- These strips are.

tions 13, or the slot ll, the flap or strip I! will cover and close the perforations or the slot.

Another feature of the invention is the mounting for the tube. This mounting, as here shown, consists of opposing abutments l9 which are preferably of rubber secured to the sealing strip 1 of the sash section, which is not readily demountable or openable, but unsecured to the other sealing strip 8 of the demountable or openable sash section 2. The abutments iii are spaced apart, and the ends of the tube are joined to the tube with a telescoping action. As here shown, porous plugs ll are inset in the ends of the tube a little distance from the extreme ends of the tube forming a socket 20 for receiving a reduced end or plug portion 2| of the plug. Also, preferably, the abutment is formed with a ventilating passage 22 opening through its periphery and through its end adjacent the tube.

For extremely long windows, and to avoid making the tubes extremely long, the tube may be made up in sections, as seen in Figure 5, and adjacent sections coupled together by a plug coupling 23. These also have ventilating passages 24 therein opening into the tube and through the periphery of the plug.

By reason oi! the construction of the tube, and particularly by reason of the flap l8, the granular dehydrating material is prevented from sifting out of the tube, and hence, the tube does not have to be carefully handled. By reason of the abutments I9 being carried only by one sealing strip, the tube is readily placed in position and removed, and owing to the construction of the tube and of the abutments, and the passages in the plugs, there is a comparatively free circulation of air through the dehydrating material.

What I claim is:

1. A dehydrator for use in double glazed windows comprising a tube for holding a granular dehydrating material partially filling the tube whereby the material is capable of shifting in the tube, the tube being formed with peripheral ventilating openings and closure means within the tube and operable by the shifting of the material under the action of the gravity weight of the material to close said openings when the tube is held with the openings directed other than upward.

2. A dehydrator for use in double glazed windows comprising a tube for holding a dehydrating material and formed with peripheral ventilating openings in one longitudinal side thereof, and a freely movable flap extending lengthwise of the tube within the same and overlying the dehydrating material therein partially filling the tube, the flap serving to close said openings when the partially filled tube is held in any position except when said side with .the perforations is upward, and to open said perforations when the tube is positioned with the perforated side upward. V

3. The combination with a double glazed window comprising opposing sash sections, each having means for supporting a glass pane, and Sealing means between the margins of the glass pane comprising strips individual to each sash section, and the sealing strips abutting against each other, and means for clamping one section toward the other, 'whereby one of the sections is demountable from the other; or opposing spaced apart abutments secured to the sealing strip 01' one sash section and unsecured to the other sealing strip, and a dehydrator located between the abutments and held in position thereby, the dehydrator comprising a tube for receiving a dehydrating material, and coacting at its ends with the abutments to be held in position.

comprising strips individual to each sash section,

and the sealing strips abutting against each other, and means for clamping one section toward the other, whereby one of the sectionsis demountable from the other; of opposing spaced apartabutments secured to the sealing strip of one sash section and unsecured to the other sealing strip, and a dehydrator including a tube for receiving a dehydrating material located between the abutments and held in position at its ends by the abutments, one of the abutments having a passage opening from the exterior thereof into the end of the tube.

HAROLD EDWARDS.