US1726794A - Cabinet construction - Google Patents

Description

Sept 3, 1929. F. A. ANETSBERGER ET AL I 1,726,794

- CABINET coNsTnUcTIoN Filed Dec. 29, 192'? 2 sheets-sheet 1 lig-l Sept 3, 1929- F. A. ANETSBERGER lfl-:T Al. 1,726,794

CABINET coNsTRUcTioN Filed Deo. 29, 1927 2 Sheets-Sheet Reis 23e/ (am Patented Sept. 3, 1929.

Unirse STATES PATENT OFFICE.

CABINET CONSTRUCTION.

Application led December 29, 1927.

This invention relates to improvements in cabinet construction adapted especially for use in connection with bakers proof boxes or other receptacles from which it is desirable to prevent the escape of heated air through the doors thereof.

The principal object of the invention is to provide an improved construction providing sliding doors, which, while they can be easily moved to open or closed position, will, when closed, co-operate one with the other and with the cabinet pro-per to prevent the escape of heated air.

Another object is to provide a cabinet, the doors of which are rigid but light in weight, and which can be moved in use without eX- cessive eort.

A further object of the invention is to so arrange the doors and stops that the jolts caused by sliding the doors will be directed to portions of the cabinet adapted to withstand the same.

An additional object relates to the construction and arrangement of the handles for the doors, one of which is adapted to cooperate with the other door in absorbing and directing the shocks incident to use.

Other objects relate to various features of construction and arrangement of parts which will become apparent from a consideration of the following specification and the accompanying drawings herein.

Fig. 1 is a front elevation of a proof boX embodying the present improvements;

Fig. 2 is a broken side elevation thereof;

Fig. 3 is an enlarged sectional view taken on line 3-3 of Fig. 1, it being assumed that the left hand door is in open position;

Fig. 4 is a vertical sectional view taken on line 4-4 of Fig. 1;

Fig. 5 is a sectional view taken on line 5 5 of Fig. 1;

Fig. 6 is an enlarged broken detached perspective view illustrating certain features of the door construction, and

Fig. 7 is a perspective view of a handle.

In the drawings the cabinet 10 is preferably made ofV sheet metal, the body of which may be of any approvedconstruction The cabinet is provided with a pair of sliding doors 11 and 12 for providing access to the cabinet. In the construction of the forward portion of the cabinet, the top 13, as shown in Fig. 3, is bent upwardly, then horizontally and then downwardly to form the tongue or Serial No. 243,266.

sealing flange 14, the free end of the material of the flange being then bent back upon itself to provide a two layer construction. As will be seen this provides an inverted channel within which the track'15 may be secured. The track vis of sheet metal, preferably of rectangular cross section and having a longitudinalslot or opening 16 extending the entire length thereof. An L shape bar 17 is secured to the rear corner of the channel portion of the top 13 to strengthen the same as shown in Fig. 3. A second or front track member 18 is secured to the top anglemember 19, which is joined at its ends with the front co-rner members 2O and 21, and'they in turn are connected to the bottom angle member 22. The angle bars 19 to 22, inclusive, are preferably united by welding and as will be seen thus form a rigidframe for the door structure. The side wall 23 of the cabinet, as shown in Fig. 5, is bent to form an angle Which contacts with the inner surface ofthe corner member 20 and is folded backvupon itself to form the double flange 24. The opposite side wall 25 of the cabinet is given a U shape in cross section, as shown in Fig. 5, the lfree edge 26 of which is turned toward the wall 25 to form a sealing flange 26a which prevents air circulation past the edge of the 'door when-closed. The edge 26b is turned toward the front of the cabinet to prevent engagement with the edge with the door. A space 26c is provided which aords access to the interior of the U shaped corner for convenience in attaching rivets, bolts (not shown) or other means by which the metal of the wall 25 is secured to the corner bar 21. The bottom 27 of the cabinet as shown in Fig. 4 is bent downwardly, then horizontally, and then upwardly to form the transverse sealing strip 28, the free edge being bent back to form a double construction. The-forward portion of the bottom 27 is secured to the lower angle member 22 by any approved means, such as by bolts, rivets, but preferably by welding. Similar means for attaching the other walls of the cabinet to the respective corner members 19 to 21, inclusive, maybe employed. Certain features of the above described construction are shown in our application Serial Number 167,286, filed Feb. 10, 1927, for bread raising cabinets.

The doors 11 and 12 are also formed of sheetmetal, preferably. Each door has an lll) outer or front sheet 29, which at its vertical edges is bent backwardly and then toward the center of the sheet, the free edges 29a being given an angularity less than a right angle for reasons hereinafter mentioned.

The bottom of the sheet 29 is bent to form a. flange 30, shown in Fig. 6, spaced from the sheet 29, a distance corresponding to the desired width of the door. The doors may have continuous inner walls, but we have found the construction shown in Figs. 5 and 6 suitable for the purpose an-d as shown, the inner walls are formed in two sections 31 and 32 of similar construction. These sections are formed of sheet metal having portions 33, 33a, bent at suitable angles with reference thereto, the free edges of which are bent back into parallelism with the main body of the members to form the flanges 34, 34a. The corners between the flanges 33 an-d 34 seat in the inner forward corners of the sheet 29 to reinforce the same as will be clear. The flanges 34, 34a, are secured, as by welding, to the back surface of the sheet 29 and are prefer* ably disposed at their bottom ends in the channel 30a between the sheet 29 and the flange 30. The angularly disposed flanges 29 of the sheet 29 contact with the flanges 33, 33 of sheet 31 and 32, and are secured thereto preferably by means of welding at suitable points', such as at 35, 35.

yThe lines of contact of the flanges 29a and the flanges 31 and 32 are -disposed slightly inwardly of the plane of the inner surface of thedoor thus precluding engagement of the edges of flanges 29a of the outer door with any portion of the inner door and lessening the likelihood of the corresponding flanges of the inner door engaging any obstruction of the cabinet interior which might cause damages to the door. r

The upper end of the sheets 29, 31 and 32 are bent inwardly and then upwardly as shown in Fig. 6 to embrace an inverted T shaped bar 36, said members being riveted or welded together. lt is also desirable to weld the sheet metal to the edges of the horizontal flange of the T bar as shown at 36a, 36a, to provide additional rigidity.

.Each door is provided kwith two pairs of rollers 37, which slide in one or the other of the tracks 15 and 18. The rollers are carried on pins or axles 37a which are confined in position by the vertical side walls of the respective tracks. By this construction no door hangers are required and a less costly and tighter construction is provided. As shown in 3, the upwardly extending portion ofthe bar 36 isl spaced but a short distance from the top portion of the respective tracks, thus providing a baffle construction which assists in preventing the escape of heated air from. the cabinet. In order for air to escape from the upper portion of one side ofthe cabinet it must pass into the track 15 over the member 33 and out of the track beneath the flange 14 or at the other side of the cabinet into and out of the track member 17 and between the lower portion of the angle member 19 and the outer door 12. The rollers 37 eX- tend slightly above the upper edge of the bar 36 and will thus prevent the bar engaging with the track and interfering with the free operation of the door should the door tend to rock on a horizontal axis as when obstructed slightly near the bottom or when the user imbalances the door in operating it. This construction has been found to provide a door which moves freely at all times and renders unnecessary the application of excessive effort in operating the doors which in prior constructions results frequently in such jolts and vibrations being imparted to the cabinets that the rising dough is caused to fall.

The doors 11 and 12 are provided with handles 39, having extended bases as shown in detail in Fig. 7. rllhe wide bases of the handles afford additional areas for securing the same to the doors and thus prevent the handles from being torn from the doors when the latter are slammed to open or closed position in use. As shown in Fig. 5, the eXtension 40 of handle 39 on the inner door 11 will slide under the left hand edgeof the door 12 when door 11 is moved to open position. The width of the door 11 is such that its handle 39 acts as a stop against the left hand edge of door 12 when door 11 is opened, and thus prevents the right hand edge of door 11 from being stopped solely by the sheet metal wall 23. When door 11 is moved to closed position, as shown in Fig. 5, the left handle 39 engages the bar 21, which prevents the stresses and jolts from being imparted to the side wall 25 by the left hand edge of the door. When door 12 is moved to open position, the left hand edge thereof is stopped by the left handle 39, the extension 40 being suliiciently thin to permit the door 12 to slide over the same into contact with thefbody of the handle. The right hand edge of door 12 engages the side wall 23 along a line thereof which is reinforced by the corner member 20. rlhis arrangement results in materially prolonging the life of the door` and cabinet construction.

The handles 39, preferably have recesses 41, 41 therein for engagement by the hands of the user. The recesses, however, do not extend through the handles and thus the user cannot get his fingers caught in the handles and pinched in operating the doors.

A sealing strip 42 is secured to the inner door 11 and when the door is closed it serves to seal the space between the overlying portions of the doors to prevent the escape of heated air therethrough. The construction described provides a door of ,suitable depth or thickness at its lateral edges and at the bottom and it is also sufficiently light in weight to operate easily and without developing excessive stresses when slammed to open or closed positions.

In installing the doors in operative position, the respective track members 15 and 18, which are open at their ends, are slid into position with reference to the rollers 37 and flanges 36 of the doors, and the doors and tracks are then together inserted in their respective channels at the upper end of the cabinet, and attached in position by bolts or other approved means. It will be noticed that suitable space is provided at the bottom channels, as shown in Fig. 4, for permitting the doors to be dropped down suliiciently so the upper ends thereof will clear the lower horizontal edge of the corner member 19 when installingr the doors. This space beneath the doors also provides room for particles of foreign matter, which may be dropped therein, but for the depth of which the free movement of the doo-rs might be interfered with.

Although we have shown certain features of our improvements for the purpose of illustration, it will be apparent that various changes may be made therein without departing from the spirit of the invention and we do not wish to be restricted to the specific details of construction herein shown and described except as limited thereto by the appended claims.

What we claim is:

1. A sliding door construction comprising a pair of parallel members each having a central longitudinal slot in the lower side thereof forming a pair of co-operating track members, a sealing strip extending downwardly between said track members, a pair of doors each supported by one pair of tracks, each door having inner and outer sheet metal side walls, said walls adjacent the upper end of the door being bent inwardly of the door, a member engaged by said bent portions and having a vertical flange extending through one of said slots, and rollers carried by said flange for running on said tracks, said sealing strip co-operating with said doors below the inwardly bent portions thereof to prevent the escape 0f heated air therethrough.

2. A door having an outer sheet metal wall, said wall being bent horizontally to form the bottom end of the door and upwardly to form a channel, the vertical sides of said wall being bent rearwardly to form the edges of the door, the edge portions terminating in flanges disposed at a slight angle with reference to the plane of the inner surface o f the door, the inner wall of the door comprising a sheet of metal having its lateral edges bent to form angular flanges which contact with the rear surface of the front sheet, the lower end of said inner sheet seating in the channel formed at the bottom of the outer sheet, said flanges of said front sheet contacting with and being secured to one of the angular flanges of the inner sheet in lines slightly inwardly of the inner surface of the door, said inner and outer sheets being bent inwardly of the door at their upper ends, va rigid member embraced by said bent portions of said sheets and being secured thereto and having a vertically extending flange, and door supporting rollers carried by said flange.

3. A door structure comprising a transverse vertically disposed flanged member at the top thereof and inner and outer spaced sheet metal wall members secured to said member and depending therefrom, one of said sheets being provided with a channel at the lower end, the other sheet seating in said channel, said inner sheet having vertical flanges contacting with the inner surface of the outer sheet, said outer sheet extending rearwardly at its lateral portions to form the vertical edges of the door structure, said rearwardly extending portions terminating in ianges contacting with the adjacent vertical flanges of the inner sheet and being secured thereto.

4. kA door structure comprising a transverse vertically disposed flanged member at the top thereof and inner and outer spaced sheet metal wall member secured to said member and depending therefrom, one of said sheets being provided with a channel at its lower end, the other. sheet seating in said channel, said inner sheet having vertical iianges contacting with the inner surface of the outer sheet, said outer sheet extending rearwardly at its lateral portions to form the vertical edges of the door structure, said rearwardly extending portions terminating in flanges contacting with the adjacent vertical flanges of the inner sheet and being secured thereto, the lines of contact of said flanges being disposed slightly inwardly of the plane of the inner surface of the door.

5. A door structure comprising a transverse rigid member at the top thereof, and inner and outer sheet metal wall members se cured thereto and depending therefrom, said outer sheet being bent at its bottom and lateral edges to form channels, said inner sheet seating in the bottom channel and having its lateral edges angularly disposed within said side channels, the free vertical edges of the outer sheet being secured to the inner sheet along lines disposed slightly inwardly of the inner plane of the door.

6. A door structure comprising a transverse rigid member at the top thereof, an outer sheet metal wall member secured thereto and depending therefrom, the bottom of said sheet being bent to forni a channel, the lateral edge of said sheet being bent first rearwardly to form the vertical edges of the door and then 'inwardly substantially toward each other to form side channels, inner sheet metal wall members secured to said rigid member and seating at their lower ends in said bottom channel, said inner sheet members having their lateral portions inclined toward the outer sheet, said portions terminating in flanges contactingpwith the inner surface of said outer sheet and being secured thereto, the lateral portion of each of said inner sheets adjacent the respective edges of the door being disposed in one of said side channels, the free edges of the outer sheet being secured to the adjacent inclined portions of said inner sheets.

7. A sliding door comprising spaced inner 'and outer sheet metal walls, said walls hav ing lateral flanges co-operating to stiften the door along its vertical edges, one of said walls having a base flange to stiffen the door along the bottom thereof, and a rigid transverse bar disposed between said walls adjacent the upper ends thereof and being secured thereto, said bar having a vertical flange of less width than the door structure, transverse members carried by the flange and roll` ers on said members.

8. A sliding door construction comprising a pair of parallel members each having a longitudinal slot in the lower side thereof forming a pair of cooperating track members,a sealing strip extending downwardly between said track members, a pair of doors each supported by one of said tracks, each door having an upwardly projecting flange at the top thereof extending through one of said slots, and rollers carried by each of said flanges for running on therespective tracks, said sealing strip cooperating with said doors below the junction of the same with said flanges to prevent the escape of heated air therethrough.

9. A sliding door construction comprisingy a pair of parallel members each having a longitudinal slot in the lower side thereof forming a pair of cooperating tracks, a pair of doors each supported by one of the pairs of tracks, each door having an upwardly directed flange secured within the door structure and extending through one of said slots, rollers carried by each of said flanges for running on its respective tracks, and a downwardly directed sealing member disposed between said `doors and cooperating with the same beneath the junction thereof with said flanges.

In testimony whereof, we have subscribed FRANK A. ANETSBERGER. NILLIAMv ANETSBERGER.

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