US1351209A - Tray mechanism - Google Patents

Description

M. M. HAMMOND.

TRAY MECHANISM.

APPLICATION FILED OCT. 31. I918. RENEWED FEB. 13, 1920.

1 8 5 1 20-9 Patented Aug. 31, 1920.

Mam/um JE ffF/ UNETED STATES MARY M. HAMMOND, KANSAS CITY, MISSGURI.

TRAY MECHANISM.

Original application filed February 14, 1916, Serial No. 78,283.

Specification of Letters Patent.

Patented Aug. 31, 1226.

Divided and this application filed October 31, 1918, Serial No. 260,530. Renewed. February 13, 192-0. Serial No. 358,403.

To all whom it may concern Be it known that I, MARY M. HAMMOND, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented a certain new and useful Improvement in Tray llflechanisms, of which the following is a specification.

My invention relates to improvements in tray mechanisms.

It relates particularly to the type of tray mechanisms in which one tray is pivotally connected with another tray so as to be swung from the position mounted thereon to a horizontal position at one side thereof.

One of the objects of my invention is to provide novel means by which the joint be tween the trays may be made dust and water proof, when the trays are in the superposed position and are subjected to inclement or dusty weather, and which holds the trays from lateral shifting relatively to each other, when they are in the superposed position, thereby eliminating strain on the hinge mechanism which connects the trays.

The novel features of my invention are hereinafter fully described and claimed.

This application is a division of an ap-- plication filed by me February 1%, 1916, having Serial Number 78,283.

In the accompanying drawing which illustrates the preferred embodiment of my invention,

Figure 1 is a perspective view, partly broken away of my improved tray mechanism, the upper tray being shown in the horizontal side position.

Fig. 2 is a vertical sectional view of the same, showing the upper tray swung partly to the horizontal side position and the cover in the open position.

Fig. 3 is a vertical longitudinal sectional view.

Similar reference characters designate similar parts in the diiferent views.

1, 2 and 3 designate respectively the lowermost, intermediate and uppermost trays.

Each tray is connected at its ends with the ends of the adjacent tray by parallel links 4, each pair having its ends pivoted to the adjacent ends of the trays which it connects in a manner such that the trays may be swung from positions superposed one above the other to horizontal upright positions at one side of the superposed positron, as shown in Fig.1.

The upper edge of each tray is provided, preferably, with a continuous flange 5, which extends all around the upper edge of the tray at the inner side thereof, and which is adapted to fit in the lower side of the tray next above, when the trays are in the super posed position, so as to hold the trays from shifting laterally relatively to each other, and also to prevent access of dirt or 1nois-- ture at the joint between the trays, when the trays are exposed to inclement or dusty weather. The flanges 5 are sutliciently shallow to permit the trays to freely swing to and from the superposed position, and the upper edge of each tray, at the outer side of the flange is shouldered so as to support the tray next above, with respect to the trays 1 and 2, and to support a cover 6, with respect to the tray 3, to which the cover 6 is hinged at one longitudinal edge, preferably by means of two flexible strips of leather, canvas or other suitable material, dosignated by 7 and 8 and secured respectively to the inner and outer sides of the tray 3 and cover 6, as is best shown in Fig. 2.

Each tray has a stationary bottom 9 disposed above the lower edge of the tray for the purpose of carrying the article to be displayed high in the trays so that they may be more efficiently presented to view, and in the case of the trays 2 and 3 to permit the entrance of the flanges 5 of the trays next below.

The tray 1 may be provided with a removable bottom 10, which rests upon two inwardly extending flanges 11 of two upwardlyextending plates 12, each having an outwardly turned flange 13, adapted. to rest upon the flange 5, as shown in Figs. 2 and The flanges 11 may be rigidly secured to the removable bottom 10, if desired. The length of the bottom 10 is such that the plates 1.2 will be held firmly against the innor walls of the tray 1, thereby retaining the plates 12 securely in their proper 'posi tion.

lVith the parts assembled as above de scribed, the trays 2 and 3 may be swung i from the superposed position above the tray 1 to the upright horizontal side position occupied by tray 3 ln'Fig. 1. When the trays are swung to the superposed position, the flanges 5 will seal the trays so as to exclude dust and moisture, and will hold the trays from lateral shifting, thus eliminating strain on the links 4L and their pivots due to such shifting.

I do not 'limit'my invention to the structure shown and described, as modifications,

within the scope of the appended claims, may be made without departing from the spirit oi my invention.

1. In a tray mechanism, two trays adapted to be superposed one upon the other, the lower tray having at its upper edge a continuous flanged portion'extench 'ing all around said upper edge, the upper tray having side walls-which embrace said gllanged portion its full length when the around its'upper edge a continuous flanged portion, the upper tray having a raised bottom and side walls which embrace said flanged portion its full length, when the trays are superposed one above the other, the flanged portion holding the upper tray against lateral shifting relatively to the lower tray, a removable bottom fitted'in the lower tray, and two plates supporting said removable bottom and having each an outwardly extending flange supporter:- upon said flanged portion. i

' 3. In a tray mechanism, two trays adapted to be superposed one upon. the other, the lower tray saving extending all around its upper edge a Continuous flanged portion, the upper tray having side walls which embrace said flanged portion its full length, two plates, each having an outwardly extending flange resting upon said flanged portion and having each an in wardly extending flange, and a removable bottom supported upon said inwardly err tending flanges and adapted to hold said plates tightly against the inner walls of said lower tray;

In testimony whereof I have signed my name to this specification.

MARY M. HAMMOND.

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