US665388A - Drier. - Google Patents

Description

N 665,388. I U D. BENNER. Patented Jan |90 DRIER.

(Applicltion filed July 20, 1899 ({No Model.)

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(Application filed July 20, 1898.)

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UNITED STATES PATENT OFFICE.

LORENZO D. BENNER, 0F PEORIA, ILLINOIS, ASSIGNOR TO LUOIUS G. FISHER, OF CHICAGO, ILLINOIS.

DRIER.

SPECIFICATION forming part of Letters Patent No. 665,388, dated January 1, 1901.

Application filed July 20, 1899. serial No. 724,509. (No model.)

To all whom it may concern:

Be it known that I, LORENZO D. BENNEE, a citizen of the United States,residing at Peoria, in the county of Peoria and State of Illinois, have invented certain new and useful Improvements in Driers; and I do hereby declare that the following is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improved construction in driers, and more particularly to that class of driers wherein it is purposed to receive a paper bag immediately after the end of the bag has been folded and pasted and carry the same on an endless belt around the peripheral surface of a rotary drier.

The object which I have in view is the construction of a rotary drier that shall be heated by electricity, it being purposed in the construction of the drier to arrange a series of heating-coils in transverse line to the circumferential surface of the drier at intervals around the same in a suitable compartment and wherein the same will be carried adjacent to the surface which it is purposed to heat,of suitable means forconducting the current to the coils and for regulating the quantity of electricity passing into said drier, and of details hereinafter more fully described.

That my invention may be more fully understood, reference is had to the accompanying drawings, forming a part of this application, in which Figure 1 is a view in elevation .of the complete drier and component parts, such as the endless belt purposed to carry the finished bags around the surface of the drier and the folding-rolls of the bag-machine, these latter devices shown in dotted lines. Fig. 2 is a general plan showing the drier and electrical connections. Fig. 3 is an enlarged sectional face elevation of the drier, showing the manner of arranging the coils. Fig. 4 is a vertical cross-section through the drier with a portion of the outer ends of the shaft cut away. Fig. 5 is an enlarged sectional detail of the heating-coil and the form or block on which it is wound and the manner of securing the same therein. Fig. 6 is an enlarged elevation, a

portion of the same being in section, showing the manner of conducting the electricity to the coils.

In the drawings, Afiis the supporting-shaft,

on which the drier is carried, the shaft being journaled in the standards a a, which may be suitably secured to the floor of a building.

The drier is shown formed substantially of the spiderB, rotating with the shaft A, which is driven by the pulleywheel a from suitable motive power. The spider has the circumferentiallypresented surface B and the covering 13*, of asbestos.

C is a supplementalcovering or heatingsurface for the drier, somewhat larger in diameter than the main supporting body A and is purposed to be supported thereon by the detachably-secured engaging plates 0 C carried on opposite sides of the drier, and when fitted in place forms the heating compartment 7o D,within which the heatiug-coi ls are put-posed to be carried. These coils consist of the conductors E, formed of one piece of conductingwire coiled in loose spiral form around the form or block E, which may be of earthenware, porcelain, or other similar no1rintla1nmable material, which are arranged at intervals and transversely carried in the compartment D and suitably supported therein by means of the bolts 6 or other suitable sup- 8o porting means carried through the plates 0 C the conductor E passing from one to the other of the forms E until the entire series have been traversed, the asbestos lining or covering B for the main frame or body A keeping the frame from becoming overheated, at the same time forcing the heat out onto the heating-surface formed of the covering 0, which is made of suit-able material.

The electric current is led to the heater 0 through suitable electrical conductors (represented by the wire f) leading from a suitable dynamo F and from thence to a suitable support adjustably carried in the frame f,

which is supported on the standard ct, the

same being purposed to contact with the conductor E, carried through the perforations f f in the shaft and main frame, and from thence into the compartment D and around the forms E, as described, and passing from thence is carried down through the perforations f f in the frame and shaft upon the opposite side of the drier, where the conductor is adapted to contact with suitable adjustable electrical contact, which leads back to the dynamo, the adjustable contact being suitably supported in the frame f carried on the standard a.

A suitable regulating-switch G is placed at a suitable point in easy reach of the operator on the positive wire f for the purpose of varying the strength of the current passing to the drier.

The manner of supporting the drier and making the contacts such as are herein shown, wherein it is made possible to rotate the same without twisting or disconnecting the electrical conductors, enables me to provide for a bag-machine or for other suitable purposes a drier which is simple in construction, durable, and one which will radiate any quantity of heat without raising the temperature to such an extent when it becomes unbearable, as is the case with driers of this character heated by steam.

In the construction of the drier I do not wish to limit myself to the exact means herein shown and described for conducting the current to the drier nor to the means of regulating the same nor to the manner of arranging the coils, as other well-known conducting means may be employed and the coils may be circumferentially arranged and in many other ways connected and carried to accomplish the same result. At the same time I do not wish to confine the use of this machine to paper-bag machines alone nor for drying paper bags in the manner I have described, as the same may be used with good results in any number of ways.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent of the United States, is

1. An electricz'iliy-heated rotatable drier, comprising a supporting-frame rotating with a suitable shaft, the outer casing C, supported by suitable rings or plates from the frame forming the concentric chamber D, a series of studs or cores arranged in parallel lines with the axial center of the shaft carried in the concentric chamber D, and an electrical conductor E, forming part of an electric circuit Wound in helices around the cores, substantially in the manner and for the purpose set forth.

2. A drier comprising a shaft and a frame rotating therewith, a concentric chamber in said frame,'-a series of studs or cores supported in said concentric chamber in lines par allel with the axial center of the shaft, an electric circuit passing through the shaft and frame and to the concentric chamber and wire helices wound on the cores and lying in the circuit, substantially in the manner specified.

3. In an electrically-heated rotatable drier, the combination with the shaft A, the spider B, and the electrical conductor E, of the concentric chamber D, outer and side walls 0, O and 0 for said chamber, the studs or cores E, circumferentially arranged in said chamber whose axial centers are parallel with the axial center of the shaft, a wire wound in successive helices around the cores and forming part of the electric circuit, and an asbestos lining interposed between the cores and the spider, all arranged substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

LORENZO D. BENNER.

\Vitnesses:

W. H. OTIS, J. M. WELLS.

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