US451012A

US451012A - Machine for grinding cutlery

Info

Publication number: US451012A
Authority: US
Publication date: 1891-04-28
Anticipated expiration: 1908-04-28

Description

(Model.)

H. A. AXTELL. MACHINE POR GRINDING GUTLERY.

No. 451,012. Patent-8111111128, 1891.

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' UNITED STATES PATENT OFFICE.

HENRY A. AXTELL, OF TURNERS FALLS, MASSACHUSETTS.

MACHINE FOR GRINDING CUTLERY.

SPECIFICATION forming part of Letters Patent .No. 451,012, dated April 28,1891. Application led November 6, 1890. Serial No. 3701441. (Model.)

To all whom t may concern.-

Be it known that I, HENRY A. AXTELL, a citizen of the United States, residing at Turners Falls, inthe county of Franklin and State of Massachusetts, have invented certain new and useful Improvements in Machines for Grinding Cutlery, the.; 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.

My invention is an improvement in machinery for grinding and polishing cutlery and other articles; and it relates particularly to the grinding of table-cutlery in the process of manufacture.

My invention has for its object to provide a machine of simple construction and easy operation, whereby an operator of ordinary skill may effect the grinding of such mentioned articles to as high a degree of perfection as an expert may do by hand with the ordinary grinding device.

In my drawings, Figure l is a side elevation of the machine. Fig. 2 is a plan or top view of the same. Fig. 3 is a detail showing the knife-holder as applied to the machine.

Similar reference-lettersindicate like parts in all figures of the drawings.

In my machine I mount upon a box-like frame A, provided with suitable journalboxes, as a, a grinding-Wheel B, fixed upon an arbor C. To the said frame uprights D D are fixed, to which latter pedal-bars E E, having` stirrups e', are pivoted. The pedal-bars E are held normally up by strap-springs F F, which are secured each at one end to a part 0f the frame A, their opposite ends being free and resting under the pedal-bars E.

To the part G of the frame A are secured a base H for a saddle I, upon which the operator sits when at work. A frame provided with uprights K, having slots b b, and a connecting-bar K2 are held against the saddlebase by screws c c. These uprights K are connected to the pedal-bars E E by bolts d.

To the connecting-bar Kzis adj ustably lixed by means of a screw e a guide-frame L, havinga pivoted wheel M, which stands immediately above the axis of the grindstone.

N is a holder for the plate or piece of cutlery to be ground, which consists of a long bar provided with a longitudinal cleat f and handles g. On the under side of the holder N is the place for the piece of cutlery to be ground, and itis secured to place by some simple means. In the hands ofthe operator ther holder Nis held upon the grindstone with the longitudinal cleatf bearing against the wheel M. The operator moves the lholder with its article to be ground beneath laterally over the face of the stone as the latter revolves under the inuence of the applied power through the medium ,of apulley P and a connecting-belt or other suitable gear.

In the operation of the device the operator sits upon the saddle with his feet upon the stirrups e of the pedal-bars E. By a proper pressure on said pedal-bars he brings down the frame K, with the wheel M and holder N, to give the proper bearing upon the stone to the article being ground. No effort is required upon the part of the operator to hold the article against the outward movement of the stone, as this is precluded by the cleat f, bearing against the inner flat surface of the wheel M. Brackets Q Q, fastened to the frame K2, have springy arms 7l, extending outward to serve as rests for theholder N. These arms readily yield to the pressure of the feet of the operator, but materially assist him in managing the article bearing on the stone.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is i l. The combination, with tli'e plate-holder described, of the guide-.frame L, the wheel M, journaled in said frame, and thel verticallymovable frame formed of uprights and a connecting bar, to which is attached the said guide-frame, as and for the purpose set forth.

2. The combination, with the plate-holder, as described, and the guide-wheel secured to the vertically-movable frame, of the spring supporting-arms attached to the verticallymovable frame, substantially as specified.

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

HENRY A. AXTELL.

Vitnesses:

EDWARD A. SEVERANCE, Louis MARCH.