US98777A - Improvement in enamelling ovens - Google Patents

Description

2 Sheets-Sheet 1.

.V. KELLER. ENAMBLING OVEN.

No. 98,777. Patented Jan, 11,; 1870.

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Letters Patent N 98,77 7

, dated January 11, 1870.

IMPROVEMENT IN ENAMBLLING- OVENS.

The Schedule referred as in these Letters Patent and making part of the sane.

To all whom it may concern:

Be it knownthat I, Vroron Knnnnn, .of the city and county of Allegheny, and State of Pennsylvania,have

invented anew and useful Improvcment'in' Enamelling Ovens; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the accompanying drawings, and to the lettersof reference marked thereon. The nature of my invention consists in constructing an cnamelling-oven, so that the heat will be equally distributed over the bottom and around the mui'l'ler or crown of the oven, also in providing the oven with opcrating-gear, so arran ed, with relation to the oven, as to automatically open and close its doors, and convey into and out ofit the articles to be dried, baked. or enamelled. v t

To enable others skilled in the art to'make and use ,my invention, I will struction and operation.

In the accom m-nying drawings, which form part of my speciiication-- Figure 1, Sheet A, is a side and front elevation of my iml'n'ovement in eimmelling-ovens.

Figure 2 is a side and backelevation of the same;-

Fignre 3, Sheet 1}, is a longitudinal section of the same.

Figure 4 is an end view of the same.

Figure 5 is a transverse section of the oven when cut through at line y oflig. 1.'

Figure 6 is a transverse section of the oven, representing the upper part of it removed, as indicated at line y of fig. 5.

In the accompanying drawings- A represents the walls of the oven.

'13 represents the fire-chambers, which-are provided each with a-flne, 1, 2, and 3, from which radiates a series offlues, as'sho'wn at 5 in fig. 6, Sheet B; .These.

lines 5' connect with the line 4, which surrounds the mufiler or crown Z of the oven A.

From the flue 4, lead three fines, as indicated HUG,

and are arranged, so that they arerona vertical line with the flues'l, 2,'and 3, leading fromthe fire-chambers B, and are connected by'fines IOwit-h ,t-he flue x, which is connected to a suitable chimney or stack.

' The bottom 11 of the oven is formed of tiles made of fire clay, or other refractory material, and the 1nuf-- fler 01' crown Z of the oven may be formed of tile, brick, or iron, and may be made in one or more pieces, as indicuted at 12 in fig. 3 of Sheet B.

At each end of the oven A are arrangedframes G, which support the gearing which is used for operating the endless aprons PP, and opening and closing the doors 8 of the oven A.

Onthe bottom 11 of the oven; are two iron bars, R, which are held together by cross-bars. These bars It proceed to describe its co'n- J are used asguldes,-upon which the endless aprons P P travehaud hold the aprons up of!- the bottom 11,

tbrthepnrpose of preventing them from causing any dust to'arIse in the oven in their passage through it. The endless aprons P1 are arranged on pulleys D I I), and c, andtravelin opposite directions,and more through the oven at snitabletintn'als. v

To the door 8 of the oven, are attached rods or chains '7, which are connected to the inner ends of levers m, which are pivoted on the shafts of the pulleys e. To the outer ends of the levers are attached rods or chains n,.

the lower ends of which are attached to levers w, which are pivoted at 9. a

The endless aprons P P'auddoors 8 are operated through-the medium of the gearing marked-Z 0 ts j k fg It i, and cone-pulleys B and C, the construction and arrangement of :which will be readily understood by the skill'nl mechanic.

The inovenlentsof the'endlessaprons and doors being dependent upon-the driving or operating-gear,

"and as the. movements of the endless aprons'and-doors rof theoven must be-adjnsted to the kind of drying,

baking, japanning, or 'euamelling .to be done in the oven, therefore, I wish'itclearly understood that I do not confine myself to any single arrangement of the gear, or to the size or form of the pulleys and wheels used.

As the construction and arrangement of the several partsot' my improvement, and the relation that the Jseveral parts bear to each other, will'be readilynnder- .stood from the foregoing description, and by reference to the accompanying drawings,I will therefore proceed to describe the operation of my improvement; which is as follows In the process oi'cnamelling the interior ofiron- *are, I have foundit to he of greatadvantage to use three ovens, constructed substantially as herein described,

,two of the ovens to be provided each with a single endless apron, and arranging the lever for opening the door at one end of the oven, as indicated by the dotted i lines 13, so that the gearing at one end of the oven will open and closehboth doors at the desired time.

The levers in and 1? may be lengthened for obtaining greater leverage, as indicated bythe dotted lines 14,

thereby requiring less power to raise the doors, For enamelling iron, as stated, the three ovens should be arranged so as to be convenient for-conveying the article to be enamelled from the ovens to theworkmen, and from one oven to the other. I ,7 The two single ovens, I use for drying the coatings of the enamel on the ware,'and the third one, which is the oneherein described and represented, I use for baking the enamel on theware. When the ware is coated with the enamellin'g-material, the vessels or articles are-placed on one of the endless aprons P.

Now, by turning the crank 'f, it will revolve the wheels f and g, which will revolve the cone-pulley C,

. which will, through the medium .of a belt, revolve the cone-pulley B, which will revolve the wheel h, which will revolve the wheel i, which will revolve the wheels 10,

shalt 15, and wheels 8 and-'t, which will revolve the section of a wheel, J, which gears into the wheel f.

The revolving of the wheelt will also revolve thesec- J J, are arranged cams'u, which are so arranged, with relation to the sections ofwheels J J that the cams will press down the levers w, which, through the medium of the rods or chains 11 and 7, and 'the levers on, will raise the doors Sof the oven A, and as soon asthe doors. begin to'rise, the sect-ions of wheels-J J will commence to rotate the wheels. f and k,-which will revolve the pulleys D and D until one of the endless aprons has carried a vessel intothe oven, and the other has carried a vessel out of-theo'ven. The sections of wheels J J will,by this time, become unshlpped from the wheels f and 7t, and the motions of the aprons stopped, and the cam'su will also become unshipped from the levers 7c, and thereby allow the doors 8 of the oven to close by their own gravity, and thus will the revolving of the gear continue to act, and cause the endless aprons to travel, and the doors of the oven to open and close at suitable intervals, suitable to the movements of the workmen for manipulating and-enainelling the wares or articles to be dried, baked, japanned, or enamelled.

' The heat from the fire-chambers B passes up through the dues 1, 2, and 3, and from them through the fines 5, and passes into lines 4, and up through them, around the mrfiler or crown of the oven, into the fines 6, and

through them into lines 10 and x, and from flue a; into the chimney or stack.

It will readily be seen and understood, that an oven I constructed and provided with the operating-gear, as

herein described,'ean be used for drying, baking crackem or bread, japanning tin or sheet-iron iva-re, as well as for enamelling ironwar e, by simply arranging the operating-gear so as to obtain that mot-ion of the parts which is best adapted to the works required of the oven.

Having thus described the nature,- eonstruction, ar-

rangement, and operation of my improvement in ensubstantially as herein described, and for the purpose set forth.

vlc'roa KELLER.

Witnesses.

A. G. JOHNSTON, JAMES J. Jorms'rox.

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