US1064388A - Concealed-hinge stove-door. - Google Patents

Description

.L. SGRUGGS.

GONGEALED HINGE STOVE DOOR.

APPLICATION FILED DBO. 30, 1911.

1,064,338, Patented. June 10, 1913.

v UNITED STATES PATENT OFFI I-OYD S CRUGGS, OF ST. LOUIS, MISSOURI, ASSIGNOR T COPPER GLAD MAIiLEABLE RANGE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF NEBRASKA.

GONCEALED-HINGE- STOVE-DOOR.

Specification of Letters Patent. Patented June-10, 19.13,

Application filed December 30, 1911. Serial No. 668,620.

and useful Improvement in Concealed- .Hinge Stove-Doors, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to stove doors, and is an improvement on the concealed hinge stove door described in my prior United States Patent No. 1,007,147, dated Oct. 31, 1911. B

One object of my present invention is to provide a concealed hinge stove door that can be manufactured cheaplyand which is not liable to break or get out of order.

Another object is to provide a-concealed hinge stove door that can be fitted quickly and easily to the stove on which it is used.

And still another object is to provide. a door of the character referred to which is so designed that there is no possibility of its sticking or becoming jammed in case the person who operates the door pulls it in a direction tending to cause the lower edge of the door to move away from the door frame on the stove.

Other objects .and' desirable features of my invention will be hereinafter pointed out.

I have herein shown my inventionembodied in a door for the warming compartmentpr oven of a cooking range but, it will,

of course, be understood that the invention is not limited to such doors for various other doors on the stove could be constructed inthe same manner without departing from the spirit of my invention.

Figure 1 of the drawings is a front elevational view of a portion of a cooking range whose warming ovens or compartments are equipped with concealed hinge doors constructed in accordance with my invention; Fig. 2 is a vertical sectional view taken on the line 22 of Fig. 1, looking in the di-' 'rection indicated by the arrows Fig. 3 is a similar view showing the door raised sli htly so as to disengage 'the hooks or catches t ereon from the shoulders on the door frame with which said hooks cooperate; Fig. 4 is a similar view showing the door in its open position; Fig. 5 is a vertical sectional view taken on the line 5--5 of Fig. 2,.looking in the direction indicated by the arrows; Fig. 6 is a vertical sectional view taken on the line 6-6 of Fig. 5, looking in the direction indlcated by' the arrows; and Fig. 7 is a sectional view similar to Fig. 5 illustrating a slight modification of my invention.

Referring to the drawings which illustrate the preferred form of my invention, A

designates a stove door whose lower edge portion is hinged to a door frame B The door A is so proportioned that it laps over the portions of the-door frame B that lie adjacent the edges of the door/opening in the frame, and the hinges on which the door is mounted are so designed and arranged that they are completely concealed or hiddenfrom view when the door is in'its closed position. In the form of my invention herein shown, a pair of hinge members .1 j which consist of downwardly curved arms,'project inwardly from the lower edge of the door through openings 2 in the door frame and engage cooperating hinge members .3 which consist of legs or projections arranged on the inner side of the door frame B at the lower ends of the openings 2 in said door frame. members 3 on which the hinge members 1 on the door travel, are curved, and are preferably concentric with the point where the lower edge of the door terminates when the door is in its closed position, and theunder sides of the hinge members or arms 1 on the door are also concentric with the lower edge of the door and are of approximately 'the same radius as the curved surfaces of .the

stationary hinge members 3 so that they will Slide over the convex surfaces of said stationary hinge members without changing the axis about which the. door revolves.

- The door A is provided with hooks 4.- that engage shoulders or lugs 5 on the door frame B so as to hold the door in its closed position, and as it isnecessary to raise the door to disengage the hooks 4 from their cooperating shoulderson the door frame, as

The surfaces of the hinge shown in Fig. 3, when it is desired to open I by means of sto s 6 on the' arms 1 that strike against stationary shoulders 7 consis t' ing of portions of the door' frame B, said stops being herein shown as integral w1th the arms 1.

To eliminate the possibility of the door sticking orjamming in case a careless personpulls the door in a direction tending to move the lower edge of the door u wardly and outwardly away from the door 'ame B during the operation of closing the door I have provided the hinge members 1 on the door with auxiliary stops or supplemental stops 6 that project downwardly below the lower'e'dges of the openings 2 the doorframe and lie behindthe curved hinge members 3 when the door is open, as shown in Fig. 4, the stops 6 projecting upwardly above the upper edges of said openings. The stationary members 3 on the door frame are so proportioned that there is suflicient clearance in a vertical line between the same and the auxiliary stops 6 on the hinge members 1 on the door to permit the door to be raised far enough to disengage the hooks 4 on the door from their'cooperating shoulders 5 on the door frame when the door is in a vertical position, as shown in Figs. 2 and 3,-but said auxiliary stops 6 overcome any tendency of the door to pullaway from the door frame and thus bind or jam when the door is moved from its open'into its closed position on account of the fact that the said auxiliary stops 6 are curved and project downwardly behind the hinge members 3 on the door frame.

The door is preferably held in operative position with relation to the door frame by means'of a locking-device 8 on the inside of the door frame, as shown'in Fig. 5, that cooperates with one of the hinge members 1 on the door to prevent the door from moving or shifting'laterally, said locking device consisting of a plate that is detachably connected to the door frame B by means of one or more suitable fastening devices 9. After the hinge members 1 on the door have been inserted in the openings 2 in the door frame the locking device 8 is connected to the door frame so as to prevent the hin e members 1 from shifting laterally out o engagement with the statlonary hinge members 3 on the door frame with which they cooperate. The openings 2 can be formed in the side edges of the door frame, as shown in Fig. 5, or, if desired, openings 2 of the form shown in Fig. 7 can be formed in the door frame some distance inwardly from the side edges of same. Each of the openings 2 is deep enough or high enough at one point to permit the coiiperating hinge member on the door to be introduced into same, and said deep portion communicates with a lateral offset portion whose depth is approximately the same-as the extreme width of the 00- operating hinge member 1 at a point just in front of the stops 6 and 6* on the inner end of said hinge member. The hinge members 1"on the door are introduced into the deep portions of the openings 2' in the door frame and the door is thereafter shifted laterally as shown in Fig. 7 so that said hinge members will be positioned in the offset reduced portions of the openings 2". Finally the locking device 8 1s connected to the s'dOOI' frame as shown in Fig. 7 so as to prevent the hinge members 1 on the doorframe from moving laterally into the deep or high portions of the openings 2.

One advantage of a concealed hinge stove door of the construction above-described is that it can be fitted quickly and easily to the door frame on which it is mounted.- This is due to the fact that the means which looks thedoor in operative position is separate and distinct from the shoulders 7 on the door frame which cooperate with the stops 6 on the hin e members on the door to limit the outward movement of the door and therefore does not have to be arranged in position until after the door has been fitted.

If the devices that held the door in operative position in the frame, also cooperated with the hinge members on the door to limit the outward movement of the door it would be necessary to arrange said devices in operative position while the door was being fitted- If the workman found that the door did not fit properly after the door, the door-frame, and the door-retaining devices had been assembled it would be necessary to remove the door-retaining devices in order to disassemble the door and frame and file off the surfaces that did not fit accurately.

Consequently, a great deal of time might be consumed in fitting the door to its frame and this, of course, would add greatly to the cost of manufacturing the structure.

The structure described in my present application is so designed that the workman can fit the door to the frame without arranging the locking device 8 in operative position so that no time is wasted in case it is necessary to remove the door several times during the work of fitting it to the frame.

Another advantage of my improved construction is that only a single device. 8 is employedfor locking the door in operative position; and still another advantage of such a structure is that it is exceptionally strong and is not liable to get out of order, this being due to the fact that the door-frame B is provided with integral portions 7 that oooperate with the stops on the hinge members on the door to limit the outward movement what I claim as new and desire to secure by Letters Patent is:

1. In a stove, a door frame provided with openings and with hinge members that are located adjacent said openings, a door that operates in a vertical plane and which completely hides said openings from view when it is closed, and cooperating hinge members projecting inwardly from said door throughsaid openings and having curved surfaces which are concentric with the axis about which the door revolves when it is beingopened or closed, the hinge members on the door traveling .on the hinge members on the door frame and each hinge member on the door being provided with a stop that strikes against the door frame and thus limits thetoutward movement of the door and also with means separate and distinct from said stop for preventing the-lower edge of the door from moving outwardly away from the door frame in case the door is pulled outwardly and upwardly during the operation of moving it from its open to its closed position.

2. In a structure of the character described, a door frame provided with openings and with hinge members adjacent said openings that have arc-shaped surfaces, a door that operates in a vertical plane and which completely conceals said openings from view when the door is closed, curved arms on the lower edge portion of the door projecting inwardly through'said openings and having cooperating arc-shaped surfaces, said curved arms bein provided at their inner ends withstops w ich are so designed that they lap over the hinge members on the door frame and project downwardly below the lower edges of the openings in the door frame when the door is in its open position,

thereby preventing the loweredge of the door from pulling away from the frame.

3. In a stove,'a door frame provided with openings and with hinge members adjacent said openings that have arc-shaped surfaces, a door that swings in a vertical plane and which completely conceals said openingsfrom view when the door is closed, hinge members on the lower edge of the door pro? vided with cooperating arc-shaped surfaces arranged in sliding engagement with the hinge members on the frame, the hinge members on the door projecting inwardly through the openings in said door frame and pro-- vided at their inner ends with stops which strike against the door frame and thus limit the outward movement of the door, and a locking device on the door frame' arranged at one side of one of the hinge members on the door so as to prevent the door from shifting laterally or sidewise far enough to carry the hinge members thereon out of engagement with the cooperating hinge members on the frame.

4. In a stove, a door frame provided with opemngs having reduced portions, a downwardly swinging door that completely con ceals said openings from view when. it is closed, curved hinge members projecting inwardly from the lower edge of the door and normally lying in the reduced portions of the openings in the door frame, and a 'lock ing'device on the door frame that cooperates with one of the hinge members on the door to hold said members in the reduced portions of the'openings in the door frame.

5. In a stove, a doorframeprovided with openings and with integral shoulders, said frame also having hinge members located it is closed, curved hinge members projecting inwardly from the door through said openings and provided with stops that strike against the integral shoulders on the door frame and thus limit the outward movement of the door, and a locking device on the door frame arranged alongside of one of the hinge members on the door and projecting into the opening in the frame through which said member passes so as to prevent the door from shifting relatively to the door frame, the hinge members on the door being provided at their rear ends with stops which lap over the hinge members on the door frame and project downwardly below the lower edges of the openings in the door frame when the door is in its open position. In testimony whereof I hereunto afiix my signature in the this twenty-secon day of December, 1911.

' LOYD SCRUGGS.

Witnesses:

' TELLS L. CHURCH, GEORGE BAKEWELL,

adjacent said openings, a door that completely hides said openings from view when presence of two witnesses,

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