US1842775A - Drier for typewriting machines and the like - Google Patents

Description

Jan. 26, 1932. H. s. BASOW 1,842,775

DRIER FOR TYPEWRITING MACHINES AND THE LIKE Filed March 27, 1931 2 Shets she'et 1 6417172 c2728 .asaaurman 1.

H. s. BASOW 1,842,775

Jan. 26, 1932.

DRIER FOR TYPEWRITING MACHINES AND THE LIKE Filed March 27, 1951 2 Sheets-Sheet 2 m6. .Bmow

' the intake of air.

Patented Jan. 26, 1932 UNITED STATES PATENT OFFICE HAYMAN S. BA SOW, IE BBYN MAWR, v PENNSYLVANIA, ASSIGNOR TO RAPIDRYER MANUFACTURING COMPANY, INC., 01 BRYN MAXVR, PENNSYLVANIA, A CORPORA- TIQN OF PENNSYLVAN IA DRIER FOB TYPEWRITING MACHINES AND THE LIKE Application filed March 27, 1931 Serial No.'525,689.

Typewriting machines, adding machines andother machines requiring repairs or renewals are frequently immersed in or otherwise cleaned with an ap ropriate fluid and thereafter have to be ried, an operation which heretofore required considerable time and in many cases resulted in the presence of rust spots on the machines.

The principal object of the present invention is to providegfor. drying such machines inv a comparatively. very short time and in such a way that rust spots are avoided.

To thatand other ends hereinafter stated or appearing, the invention comprises a drier constructed,arranged and adapted for oper ation in the manner to be presently described and referred to in the claims.

In the following description reference will be made to the accompanying drawings forming part hereof and in which Figure 1 is a front elevational view, principally in section, with parts removed.

Fig. 2 is a transverse sectional view.

Fig. 3 is an elevational view of the lefthand side of Fig. 1 with parts removed, and

Fig. 4 is a transverse sectional view taken on the line 44 of Fig. 1.

In the drawings 1 is a drying chamber provided with a door 2 and having openings 3 through its floor which communicate with the atmosphere. The chamber is shown as supported upon a frame 4. At the top of the chamber and in its back wall 5 is provided an opening 6 of substantially the width of the chamber and of comparatively small width in respect to the height of the wall 5 or, in other words, the opening 6 is narrow. 7 is a motor driven blower mounted below the chamber 1 and which is provided with a casing 8 having an intake 9. 10 is a housing enclosing the blower casing 8 and communicating with the inlet opening 9. 11 is a fine extending from the housing 10 upward past the chamber and itis open at its top at 12 for This flue includes an outward enlargement 13 at its upper part. 1 1 represents electric heating elements of which the number may be increased or diminished, and they project inwardly from the wall of the enlargement 13 of the flue. 15 is a baflle )arts are united b a con lin 21. i b

plate extending from the wall of the flue opposite the enlargement, and it is arranged over the ends of the heating elements in order to deflect incoming air awayfromthe hot ends of the heating elements and in that way prevent the incoming air from injuring or darkening them. There is a second the 16 extending from the casing 8 of' the blower past the chamber, and it communicates with the opening 6. 17 is a deflector for keeping the air entering the chamber 1 away from the hot ends of the heating elements 18 which project through the opening 6 and of which the number may be increased or diminished. Roof 19 ofthe chamber 1 is shown as inclined from the opening 6 downward-and its purpose is to avoid space at the top-0f the cham her in which quiescent or dead air might accumulate,or, in other words, the roof 19 promotes uniform distribution of air passing through the chamber 1. Alongside of the flue 11 space is provided for a switch box 20, in which may be conveniently arranged switches for controlling the motor and the heating elements or groups of them. These switches and their connections require neither illustration nor description because they are well understood by those skilled in the art. The fine 16 is shown as constructed of two parts properly united byv a coupling 22, and this is true of the flue 11 of which the The couplings are convenient in assembling and disassembling the device.

The operation may be described as follows: V

The machine to be dried is placed in the chamber 1 and exposed to the uniformly dis tributed current of heated air by which it is dried in a few minutes in such a way that rust spots are absent. Air entering at 12 is deflected, by the bafiie plate 15. from direct impingement upon the ends of'the heaters 14. and is heated by these heaters. The heated air passes through 11 into 10 and enters the lower casing 9 from which it is expelled by way of 16, and upon leaving the flue 16 it is deflected by the deflectorplates' 17 from direct impingement upon the ends of the heaters 18. The air is additionally heated, and flowing past the root 19 descends through the chamber 1 and escapes at the openings 3, and it is this current of air which dries the machine in the chamber 1.

23 is a movable pivotally mounted damper and by adjustment it serves to deflect air to different parts of the chamber 1 as desired.

It will be obvious to those skilled in the Quito Which the invention relates that modifications may be made in details of construction and arrangement and matters of mere form without departing from the spirit of the invention which is not limited to such matters or otherwise than the prior art and the appended claims may require.

I claim;

1. A drier for typewriting machines and the like comprising a frame, a drying chamber carried "by the frame and open at its lower portion-to the atmosphere and having at the top of its rear wall a narrow inlet openingfot substantially the width of the chamber, a blower mounted below the chamher, a housing enclosing the blower, a flue extending {from the blower upward past the rear wall of the chamber and open at its top fer theintake of air and having an outward enlargement at its upper -part,electric heat ing elements projecting inward from the wall of the enlargement of the flue, a bafile plate extending from the wall of the flue opposite theenlargement and overlying the ends ofythe heaters, a second flue extending from the outlet of the blower past the rear wall of the chamber and communicating with said inlet opening, heaters projecting inward from the outer wall, of the last named flue through said inlet opening, and a shield provided in the wall of the chamber and projecting-into the last named flue adj acent to the heaters.

2. A drier for typewriting machines and the {like comprising a frame, a drying chamber carried by the frame and open at its lower portionto the atmosphere and having atthetop of its rear wall a narrow inlet opening of substantially the width of the chamber, a blower mounted below the chamber, a housing enclosing the blower and communicating with its inlet opening, a flue extending from the housing upward past the rear wall of the chamber and open at its "top forthe intake of air and having an outward enlargement at its upper part, electric heatmg elements projecting inward from, the wall of the enlargement of the flue, a baflie plate extending from the wall of the flue opposite the enlargement and overlyingthe ends of the heaters, a second flue extending from the outlet of the blower past the rear Wall of the chamber and communicating jecting into the last named flue adjacent to the heaters, and an inclined roof for the chamber.

3. A drier for typewriting machines and the like comprising a frame, a drying chamber carried by the frame and open at its lower portion to the atmosphere and having at the top of its rear wall a narrow inlet opening of substantially the width of the chamber, a blower mountedbelow the chamber, a housing enclosing the blower and communicating with its inlet opening, a flue extending from the housing upward along one side of the side wall of the chamber and open at its top for intake of air and having an outward enlargement at its upper part, a switch box arranged at the side wall of the chamber beside said flue, electric heating elements projecting inward from the wall of the enlargement of the flue, a bafile plate extending from the Wall of the flue Opposite the enlargement and overlying the ends of the heaters, a second flue extending from the outlet of the blower past the rear wall of the chamber and communicating with said inlet opening, heaters projecting inward from the outer wall of the last named flue through said inlet opening, a shield provided in the wall of the chamber and projecting into the last named flue adjacent to the heaters, and an inclined roof for the chamber.

HAYMAN S. BASOW.

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