US1994100A - Mat drier - Google Patents

Description

March 12, 1935.

A. J. HARTLEY MAT DRIER Filed Jan. 16, 1933 Patented Mar. 12, 1935 7 l e UNITED STATES PATENT OFFICE MAT DRIER Andrew J. Hartley, Janesville, Wis. Application January 16, 1933, Serial No. 652,066

3 Claims. (01. 34-16) My invention relates to devices for drying mats ends has a hook-form arm 15, adapted to catch used in casting stereotype printing plates, which or latch into an eye or loop 16, fixed to the loose are in a moist onsemi-wet state. These mats are or free end of the outer asbestos blanket 17. applied to the outer cylindrically curved exterior Such free end is shown fixed between opposite 5 surface or periphery of a hollow drying drum and metal strips, 12. The rock shaft has applied to it 5 an object of my invention is to effect the close a coil spring 18, which tends to swing the hook conformation of the mat to the curved surface of upward and away from the free edge of the outer the drum or support, and another object is to blanket so as to exert a drawing or pulling force accomplish that by simple and efiicient means upon it which causes the outer blanket snugly or and to promote or facilitate the manipulations closely to press the mat smoothly against the 10 required to be performed, all as hereinafter more inner blanket. The rock shaft has at one end a fully set forth in the description of that embodiank arm by Which to rock it against the ment of my invention which I have selected for action of the spring 18, to release the hook from illustration thereof. I the eye or loop and thus free the hitherto clamped My invention consists in whatever is described mat. 15 by or is included within the terms or scope of the The other end of the outer blanket, as has been appended claims. I I explained, is secured to the periphery of a spring In the drawing: roller 20 (which may be similar to the familiar Fig. 1 is a View in side elevation of enough of a shade roller) which when the loose end of the 20 mat drier to illustrate an embodiment of my outer blanket is freed from the pull of the hook 20 invention; arm, automatically rolls or winds the then loose Fig. 2 is a detail view in perspective of a portion outer blanket upon itself, freeing and exposing thereof with especial reference to the devices for the mat for removal and exposing the inner clamping the moist mat upon the periphery of blanket for the application of another mat.

the drying drum. To limit or stop the swing of the hook or latch 25 Briefly described, the embodiment of my into unlatching positionby the action of the spring vention shown in the drawing is a hollow drum on the rock shaft 14, a suitable stop may be prowith a curved exterior with two concentric as vided such as a collar 21, fixed to the rock shaft bestos blankets or sheets, the inner one of which and having a finger 22, situated to engage the is in a fixed position and the outer is fixed at side of the adjacent shaft bearing 13. 30 one end on a line parallel with the drum axis and As will be evident from what -I have already at the other end is free and is engageable by a said, my invention may be embodied in construcspring-actuated hook-form catch device which I tions differing from that shown in the drawing draws and holds the outer one tightly upon the and described in detail and the scope of my promat interposed between the two blankets, so that tection therefore, extends to and includes struc- 35 the mat is subjected to uniform pressure throughtures of various forms but embodying the same out its extent due to the force exerted by the principle. spring in drawing or pulling the outer blanket What I claim is: upon the drum. The fixed end of the outer 1. A mat drier comprising a mat-supporting blanket is attached to the periphery of a stationsurface and a flexible mat clamping member and 4.0 arily supported spring-actuated roller which releasable means exerting tension on such memtends to wind the outer blanket upon it so that ber between opposite edges thereof over a mat when the latched or hooked end is released, the lying between it and such supporting surface, blanket will automatically be wound upon such said means including a hook-form latch and an roller and thereby the dried mat released and at eye engageable therewith connected with one 45 the same time the outer blanketwill be convenof the edges of said member a rock shaft jouriently taken care of ready for further use with nalled parallel with said edge and a spring acting another mat to be dried. on said rock shaft to cause the latch to exert pull Describing in detail what is shown in the draw- 0n aid y ing, the hollow drying drum is designated 10, 2. A mat drier comprising a mat-supporting 50 and the asbestos blanket fixed to the periphery surface and a flexible mat-clamping member and thereof is designated 11, its opposite ends being releasable means exerting tension on such memsuitably secured to the drum. Projecting from ber between opposite edgesthereof over a mat the drum, at opposite sides, are spaced apart bearlying between itand such supporting surface, and

ings 13, for a rock shaft 14, which between its a stationarily supported winding roller to which 55 said member is connected and upon which it may be wound when it is free from such tension-exerting means.

3. A mat drier comprising a convexly curved, mat-supporting surface, a flexible mat-clamping member secured along one side adjacent to said surface, and adapted to reach therefrom over such convexly-curved surface in contact with a mat thereon and having its opposite edge free, when not in clamping position, and means for temporarily securing such free edge against the matsupporting surface, such securing means including means to exert tension on said flexible member in a direction substantially tangential to such curved surface.

ANDREW J. HARTLEY.

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