US65930A - Samuel m - Google Patents

Description

N. PETERS, PHOTJJTHOGEAPHER, WASHINGTON D @einen faire @anni @time SAMUEL M.` MEGUTGHEM. or rHILADEE-PHIA, PENNSYLVANIA. Leens Manilva. sassenage Jam 18, 1867.

IMPROVED METHOD 0F ADJUSTING ROLLBBS.

TO ALL WHOMIT MAY GONCERN: I

Be it known that I, SAMUEL M. MECUTCHEN, of Philadelphia, Pennsylvania, have invented an improvement in Rolling-Mills; and I do hereby declare the following to be a full, clear, and exact description of the same.

Myjnvention consists ofl one or more wedges combined with the sliding bearing and set-screw of a rollingmill, substantially as described hereafter, so that, should the screw become xed in-`consequence of an excessive pressure applied to the same, it may be readily relieved by driving back the w dgc.

In order to enable others skilled in the art to maire and use my invention, will now proceed to describe its construction and operation,reference'being had to the accompanying clrawing,iwhich forms a' part of this speci iieation, and in which- Figure 1 is a sectional elevation Aof ar'olllng-mill with my improvement; and

Figure 2, a side vi'ewl y A is a baseplate,t`o which aresecurd the opposite frames B B, and in bearings a a in the side frames turn the journals of the lower roller C, above which turns a parallel roller, C, the journals of the latter being' adapted to bearings b, arranged to slide vertically in-the frames. In a recess in thc top of each bearing` b iit two wedges c e, the latter resting on the former, and the thick end of one wedge being adjacent to the thin edge of the other, so that the upper side of the wedge e shall be parallel to the under side of the wedge c. Through the upper .cross-piece of each frame passes theV usual set-screw j', the lower end of which bears against the top of the 'upper wedge e. In rcllinganills of the ordinary construction the set-screws are in direct contact with the bearings, so that when the plate or other object acted on becomes jammed between the rollers, and the latte: are thereby prevented from turning, such an upward pressure is frequently exerted against the screw thatit cannot beturned by the ordinary appliances, and its end has to be cut away to allow the roller C to be raised and the partly-rolled plate to be withdrawn. When such an accident occurs in a. mill with the above-described improvement, thefsetscrews may beinstantly relieved by driving back the lower wedges, the expense, labor, and delay required in cutting away the screws being thus avoided. A single wedgemay be interposed between the set-screw and the bearing, although two are preferable-for obvious reasons.

I claim as my invention, and desire/to secure by Letters Patentv The arrangement, substantially 'as' described, of the wedges, sliding bearing b, and set-screwf, with a rollingmill, for the purpose specied. l

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

' SAMUEL M. MEcUfreHEN.

Witnesses:

C'nAELEs E. Fosrnn, W. J. R. DELANY.

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