US154748A - Improvement in photograph-burnishers - Google Patents

Description

P. H. DEAN.

Photograph Burnishers.

No.154,748. Patented Sept.8,1874.

FIG I WITNESSES INVENTOR UNITED STATES PATENT OFFICE.

PATRICK H. DEAN, OF WINCHESTER, INDIANA.

IMPROVEMENT lN PHOTOGRAPH-BURNISHERS.

Specification forming part of Letters Patent No. 154,748, dated September 8, 1874; application filed June 11, 1874.

To all whom it may concern:

Be it known that I, PATRICK H. DEAN, of Winchester, in the county of Randolph and State of Indiana, have invented a certain Impro vement in Photograph-B urnishers, of which the following is a specification:

This invention relates to that class of machines for finishing photographic pictures which consist, in the main, of a metallic burnishing-surface capable of being readily heated, over which the picture, with its face exposed to the heated burnisher, is drawn under suitable pressure by a revolving roll, and becomes highly polished in its passage.

My improvement consists in constructing the frame with converging sides, united on top, where it is dressed and highly polished on the exterior side, to form the burnishingsurface, to be heated by a lamp or otherwise,

placed under it between the converging sides.

The bearings of the pressure and feed roll are supported on springs in slotted standards on the ends of the frame, are adjusted to regulate the distance between the burnisher and the roll by set-screws, and can be readily lifted, together with the roll, out of the standards when it becomes necessary to clean the burnisher.

In the annexed drawings, Figure 1 is a perspective view of my improved photographburnisher. Fig. 2 is avertical transverse section thereof.

The same letters of reference are used in both figures in the designation of identical parts.

The converging sides A A of the frame are connected on top, as at B, the upper or exterior surface of which is suitably polished, and constitutes the hurnishing-surface. The sides terminate in horizontal flanges a a below, by which the machine can be properly secured to a table or stand. Part-way down these converging sides are also connected at the ends by connecting-plates a, as shown in Fig. 2, so that the heat issuing from the lamp C will be confined near the burnisher B, and be made more effective on the latter.

Instead of the lamp shown, the burnisher may be heated by means of gas jets, or even a small furnace suitably placed under the converging sides. The latter serve, to a great extent, to deflect and concentrate the heat upon the burnishing-surface, by reason of which the latter can be heated to the proper degree at a less expense of fuel than is required in machines of this kind now known.

D and E are two standards, respectively bolted to the end plates at a of the frame. They are forked at their upper ends, and receive between their vertical legs the bearings or boxes F and G, in which the journals of the pressure and feed roll'H are supported. The boxes F and G rest on springs f and g, and are adjusted by set-screws I and K, which pass through nuts formed in the caps i and k, covering the upper ends of the slotted standards, to the legs of which they are secured by tap-bolts z" and 70. One of these tap-bolts for securing each cap passes through a notch, l, out in the side of the cap, so that on slightly loosening these bolts the caps may be swung around on the other bolts to open the forked ends of the standards, and permit the bodily removal of the pressure roll and its boxes.

I do not wish to confine myself to the use of straight converging sides composing the frame. They may assume an arched form, or any other shape which will have substantially the same effect as the configuration shown.

One of the journals of the roll II protrudes through its bearing, and is provided with a winch as a means for revolving the roll.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. A photograph-burnisher having its frame formed with converging sides A A, and the junction B of which constitutes the burnishin g-surface, substantially as and for the purpose specified.

2. In combination with the frame, the pressure and feed roll H, boxes F and G, springs f and g, slotted standards D and E, swinging caps 'i and 7c, and set-screws I and K, substantially as and for the purpose specified.

In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

PATRICK H. DEAN.

Witnesses:

N. T. LITTLE, JAMES S. ENGLE.

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