H. F. BOOK.
GOFPEB MASTER. No. 346,459. Patented Aug. 3, 1886.
UNTTED STATES PATENT OFFICE.
HENRY F. BOOK, OF LANSING, ILLINOIS.
lECIl-ICATION forming part of Letters Patent No. 346,459, dated August 3, 1886.
Serial No. 158,102. (No model.)
To all whom t may concern:
Be it known that I, HENRY F. BOOK, of Lansing. in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Coffee-Roasters, of which the following is a description, reference being had to the accompanying drawings, in which- Figure l is a back view of said device with the cover partially raised, showing the cylinder beneath and an opening slide for access thereto. Fig. 2 is a longitudinal vertical sectional View of said cylinder and the supporting-frame. Fig. 3 is an end view showing the application thereof to the fire-box of an ordinary stove, the latter appearing in section. Fig. 4 is a transverse vertical sectional view of the cylinder in which the construction of the interior is indicated. Fig. 5 is a perspective view in detail, showing a modified form of a adjustable flange; and Fig. 6 is an end View of the same.
Like letters of reference indicate like parts in the different figures.
The object of my invention is to so construct a coffee-master that wh en placed over the re box of an ordinary stove the heat therefrom may be more effectually utilized than in the ordinary way, while at the same time the mechanism used for said purpose may be adjusted to stoves of varying sizes. A further object is to permitthe inspection of the coffee within said roaster, and thereby ascertain its condition during the process of roasting, which features are hereinafter more particularly described and claimed.
In the drawings, A represents an oblong metal plate, preferably of sheet or cast iron, adapted to rest over the fire-box of an ordinary stove or range, and rest upon the top plate, B, thereof, thus forming a supportingframe for the parts hereinafter described. At or near the respective ends of the frame B are rigidly attached upwardly-projecting lugs b b, which form supports or bearings for a rod or shaft, C, provided with a crank, c, Fig. 1. Said rod is removably inserted within a cylinder, D, of which it forms the axis, the two being attached as follows: Upon the respective ends of the cylinder are attached, by means of rivets or otherwise, collars or sleeves d cl, in the former of which a screw-thread is cut, into which the end of said shaft is screwed, as clearly shown in Fig. 2, the end thereof, protruding` from said sleeve, being journaled to tit within the bearing formed by the lug b. The perforation within the collar d is smooth, so that the rod O may be loosely inserted therein.
In the end plate olq the cylinder D, I make one or more perforations, d2 di, over which I place one'or more sheets of niiea, d, secured in place by lneans of a plate or washer, dt, having perforations corresponding with those in the end plate, d2, with which the former are made to conform when a piu, c', is inserted through the rod O to support the plate d in place, a notch being provided in the collar d to receive said pin, and thus prevent the rod C from becoming unscrewed at the opposite end.
Vithin the chamber or cylinder I place one or more flanges, d6 d, Fig. 4, which serve to tumble the berries more effectually while being roasted.
A flange, E, having a row of perforations, e, at its top, is attached to the plate A at the back, said flange extending down sufficiently to fill the throat of the tire-box F, as clearly shown in Fig. 3, thus causing the products of combustion to pass upwardly in direct contact with the cylinder D, and through the perforations e, in order to escape. Vings c2 e2, Fig. 1, are preferably hinged to the respective ends of said flange F, in order that the same may be adjusted to fire-boxes of different lengths.
Should the part A be constructed from sheetiron the flange E may be formed from the same piece of metal, the opening caused by the downward bending of said flange constituting a portion of the opening over the fire-box through which the cylinderD protrudes, the remaining portion ofthe metal necessary to complete said opening being bent upwardly, as shown at D', Fig. 3, to which a semi-cylindrical lid, D2, of sheet metal, is hinged at d7 for the purpose of retaining the heat.
An oblong opening, d", Fig. l, may be made in the cylinder for inserting the berries, said opening being closed by a slide, (Z9, having perforations therein, as shown, by which it may be moved back and forth.
In Figs. 5 and 6 I have shown a modification' of the construction above described. Instead of making the flange E a part of the frame A, by bending the former downwardly, as described, or attaching it directly thereto, I intcrpose bolts ei e3 e* e4, Figs. 5 and 6, the former ofwhich are provided withjam-nuts eewhich retain them firmly secured within the plate A, the opposite ends being screwed into the flange E, said bolts being provided with nuts e6 e7, adjusted, respectively, as shown, with relation to said flange. Thus it is apparent that by turning said screws and nuts the flange E may be raised or lowered or adjusted to any angle or pitch, as desired, in order to fit the same to fire-boxes, While wings e2 l may be attached thereto at the ends, respectively; and instead of' 4being hinged, as shown in Fig. l, they may be provided with slots e e8, through Which a stud may be inserted for them fo slide upon.
It is obvious that by means of the mechanism described a greater degree of heat may be brought into direct contact with the revolving cylinder, and thus roast the coffee in a shorter time, with less fuel, than by the usual method, while the various stages ofthe process may be closelywatched and accurately determined by means of the mica Windows at the end of the cylinder Without opening the slide d.
Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s-
l. In a coffee-roaster of the class described, the depending flange E, provided with snitable pcrforations, e, said flange being located beneath and at the back of said roaster, and arranged to close the throat of the iire-pot over which said roaster is placed, whereby the products of combustion are caused to partially circulate around the cylinder. and to pass through said perforations, substantially as and for the purposes set forth.
2. The combination, with a revolving cylindrical coffeeroaster, of the depending adjustable flange E, located beneath and in the rear of said roaster, so as to partially close the throat of thevfire-pot over which said roaster is placed, and provided with bolts c3 e, Whereby the pitch of' said flange may be adjusted to conform to the incline of the back of said firepot, substantially as described.
3. A coffeeroaster consisting of a cylinder mounted in suitable bearings upon a plate adapted to be placed over a fire-pot, a depending perforated flange, E, in the rear of said roaster, and arranged to be adjusted in the throat of the fire-pot, a hinged cover to retain the heat around said cylinder, suitable mica windows to admit light within the latter, and interior flanges for tumbling the coffee when said cylinder is revolved, all combined, arranged, and constructed substantially as described.
HENRY F. BOOK.
D. H. FLETCHER, L. BUTTERFIELD.