US811843A - Dampener for sheet feeds or separators. - Google Patents

Description

PAT

ENTED FEB. s, 1906.

G. G. HARRIS. DAMPENER FOR SHEET FEEDS OR SBPARATORS.

APPLICATION FILED FEB. 24,1905.

- 2 SHEETS-SHEET 1.

6 llnn nnnnnn VII/ll 3J1 window, W 52; G. fdzi-i'als No. 811,843. PATENTED FEB. 6, 1906.

4 0. G. HARRIS;

DAMPBNER FOR SHEET FEEDS 0R SEPARATORS.

APPLICATION FILED FEB. 24,1905.

2 SHEETS-SHEET 2.

UNITED srA'rRs PATENT OFFICE.

oHARLEs GRANT HARRIS, oF'NILEs. oruo. ASSIGNOR To THE HARRIS AUTOMATIOPRESS COMPANY, or NILES, OHIO, A CORPORATION or OHIO.

IDAMPENQR FOR SHEET FEEDS OR SEPARATORS.

$pecification of Letters Patent.

Patented Feb. 6, 1906.

Application filed February 24, 1905- Serial No. 247,130.

5 useful Imprpvements in Dampeners for Sheet Feeds or Separators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

. In the feeding or separating of paper by bands, rollers, orpushers having rubber faces it is necessary in order to secure best results to frequently clean and dam en the surface enga in the stock. It is t en possible to readily eed or-separate stock of various degrees of thickness and texture; but after the effect of the cleaning and dampening has worn away the most careful adjustment is necessary to make such devices feed even one kind of stock. It has heretofore been sought to furnish thenecessary moisture by means of dampeners com osed of hollow perforated rollers covered wit cloth throu h which water or water and lycerin Wou d percolate. The objection to al such devices has been the inability to secure an even dampening of the surface of the stock-engaging element. With a hollow 'erforated roll of the character specifled the uid will when the feeder or separator is not in operation drip at the bottom side and when the machine is a ain started up will deposit an extra amount 0 water, so much so, in fact, that several sheets will be spoiled before the press can be properly started. If the quantity of water is cut down so as to overcome this trouble, sufficient percolation will not result to answer the requirements.

The object of my invent on is to provide a dampener which when the machine is in operation will supply a sufficient amount of moisture to give to the whole'surface of the paper-engaging element a slight moistening and yet which when the machine is not in operation will not ordinarily allow any greater amount of water to seep to the surface .thereof than may be taken up by evaporation.

My invention comprehends the employment of an imperforate fluid-containing body of-such density of composition that the fluid will gradually seepto the exterior surface in sufficient quantity to properly moisten a paper en a in element contacting therewith. Th e rati or quantity of the flow or seepage may be increased by admitting a supply of air to the interior ofthe body.

The invention will be hereinafter fully set forth, and particularly pointed out in the claims.

of my moistener to a sheet feed or separator.

Fig. 2 is a longitudinal sectional view. Fig. 3 is a side view. Fig. 4 shows the device as used in feeding from the top of a pile. Fig. 5 shows the application of my invention to a different form of feeder or pusher.

Referring to the drawings Figs. 1 and 3, 1 designates the frictionally-retarded element, and 2 the intermittently positively-driven element of a sheet feed or separator .of the type embraced by Letters Patent No. 651,307 issued to me June 5, 1900. As shown in the drawings, the intermittently-driven element is composed of a series of bands passed around rollers 3. In order to'secure good results and keep the bands in perfect condition for enga ing the stock, I locate immediately thereunrfiar and in engagement therewith the dampener 4. This is shown in the form of a hollow roller-like body, mounted at its ends in brackets 5, wherein it is free to turn. This roller is not made with perforations, but is composed of a clay-like substance, preferably diatomaceous earth, solid at one end, while its filling end is preferably hermetically sealed bya stopper or valve 6. By constructing this roller of a clay-like substance and sealing the same against the admission of air the water contained therein will seep through the wall thereof only in sufficient quantity to properly moisten the engaging feeder element. In this way the latter is uniformly dampened, and'this is true even if the feeder sired to secure heavier dampening by a greater flow of water, it is only necessary to allow of the inlet of a small amount of air say by slightly loosening or opening up the In this event the water will flow more freely, and when the machine is stopped it will drip from the bottom of the roller if allowed to stand any length of time, the seepage being in excess of that which can be taken up by evaporation from the exte rior surface.

In Fi 4 the functions of the two elements of the eeder are transposed, as in feeding from the top of a pile. In this arrangement the frictionally-retardedelement is 2 and the positively-driven element is 1", the dampener being shown in engagement therewith.

In Fig. 5 I have shown the application of my dampener 4 to a rubbing or pushing element consisting of a rubber roller 7 on a finger 8. This is done to illustrate the fact that my invention is not limited in its application, since it may be used in connection with various forms of feeders or pushers intended to have frictional contact with paper, cards, &c.

, I claim as my invention- 1. A moistening device for paper feeding or pushing elements, com rising an imperforate fluid-oontaining bo y from which the fluid will gradually seep to the outer surface sufficient to moisten a paper-engaging element.

- 2. A moistening device for paper feeding or pushing elements, com rising an imperforate fluid-containing bo y from which the fluid will seep to the outer surface in quanvalve or stopper.

mg body of diatomaceous earth from which the fluid will be caused to seep to the outer surface in quantity not exceeding that which may be taken up by evaporation or by a paper-engaging element contacting therewith.

5. A moistening device for paper-feeding bands or rollers comprising a fluid-containin body of diatomaceous earth from which the fluid will be caused to seep to the outer.

surface in quantity not exceeding that which may be taken up by evaporation or by a pa per-engaging element contacting therewith, and means for controlling the admission of air to such body to increase the flow therefrom.

' In testimony whereof I have signed this specification in the presence of two subscrib- 1ng witnesses.

., CHARLES GRANT HARRIS.

Witnesses:

J. R. GILBERT,

C. G. PRITOHARD.

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