US350802A - Blotter-case for copying-presses - Google Patents

Description

(No Mbdel.)

'J. W. GALLARD.

BLOTTBR CASE FOR COPYING PRESSES No. 350,802. Patented Oct. 12, 1886.

UNITED STATES PATENT OEFicE.

JOHN \V. OALLARD, OF TOLEDO, OHIO.

BLOTTER-CASE FOR COPYlNG-PRESSES.

SPECIFICATION forming part of Letters Patent No. 350,802, dated Octo er 12, 1886.

Application filed Xovemher 16, 1885. Serial No.1'2,936. (No model.)

To all whom it may concern.-

Be it known that I, JOHN W. CALLARD, a citizen oft-heIInited States, residingat Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Blotter-Cases for Copying-Presses; and I do 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, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form apart of this specification.

My invention relates to receptacles for blotters used in connection with copying-presses.

The object of my improvement is to provide an air-tight case for dampened blotters employed in obtaining letter-press copies of letters inscribed with a copying-ink. The airtight casing prevents and retards any evaporation of the saturated blotters, which would otherwise take place were they exposed to the air.

In the accomplishment of the above object my invention consists in the following construction and arrangement, which will first be fully described, and the points of novelty held to be new therein will then be set forth in the claims.

Figure 1 represents a perspective view of a device to which I have applied my improvements. Fig. 2 represents a vertical section through such a device, and Fig. 3 is a similar view of a modified form of receivingcase with the cover removed.

To enable others skilled in the art to make and use my improvement, I will proceed to describe it in detail, employing the same refen ence-1etters to indicate the same parts in all the figures.

In the drawings, A represents the case proper, which receives the blotters B. Case A is a plain shallow receptacle of such size as to conveniently receive any sized blotters desired.

O is another shallow case or pan, of similar configuration to case A, but proportionately larger, and which holds the pan A centrally within it, whereby a narrow trough, D, is

formed on all sides of the latter.

Case A or C may have lugs it upon it, so that the former maybe kept slightly away from the latter. I prefer this construct-ion, although I may dispense with it.

E is the coveref the case, the edges of which are upset or turned at right angles. It is of such dimensions that its edges (when closed) rest about centrally within the trough D on all sides of the case A.

G isa hinge device, whereby the cover may be raised or lowered; but I may dispense with the hinge and lift the cover bodily from the case, if desired, in which event I would use a centrally-arranged handle, instead of the one shown at the side of the cover, and also a differently-operating air-val ve.

The air-valve H and operating catch or handle I (shown in Figs. 1 and 2) are arranged so that lifting the catch to raise the lid or cover will depress or open the air-valve, but which latter normally remains closed by the preponderance of the pivoted catch.

\Vater is poured into the trough made between the pans A and O to a sufficient degree to insure an air-tight sealing of the cover and ease, and to prevent the evaporation of the saturated blotters therein. The space between the bottom of the two cases A 0 serves as an additional water-reservoir supply. In order to neutralize the suctionor vacuum tendency when raising the lid to obtain access to the case, the operation of raising the catch I opens the valve and produces the desired result.

In Fig. 3 is shown a modified form of case, in which it and the trough are integral.

Blotters, when once properly saturated, will retain their moisture for an indefinite period, as the evaporative action of the outer air is checked. The blotters therefore require less attention and are always ready for immediate use, which cannot be said for the ordinary way of keeping blotters moist.

Of course it will be understood that other liquid than water may be used to effect the sealing of the blotter-ease.

I It is presumed that the method of using dampened blotters in the obtaining of letterpress copies from copying presses is well known, and the operation, therefore, will not be described.

What I claim is- 1. A case consisting of a box, a liquid-receptacle surrounding the box, a cover adapted" to rest within the liquid-receptacle, an air- 5 valve in the cover, and a handle on the cover,

adapted to unseat said valve upon lifting the cover, all in combination, as set forth.

2. A case for holding dampened blotters for copying-presses, consisting of two pans, one

10 within the other, in combination with a waterseal between the two anda cover resting between the said two pans within the water-seal, for the purpose set forth.

3. In a blotter-case, an outer pan, and anin- I5 ner pan resfing within the former, with lugs arranged between the two, whereby a space for liquid is provided, all in combination with a cover, the edge of which rests within the space between the sides of the b1otter-case.

4. A cover for a blotter-case, having a-pivoted lever located thereon, carrying a catch or handleat one end and a valve at the other,

whereby the raising of the catch will open the valve, as set forth.

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

JOHN XV. OALLARD.

\Vitnesses:

E. WV. TALERTON, H. F. SHUROK.

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