US1070357A - Can-opener. - Google Patents

Description

H. J. SCHMIDT.

CAN OPENER. APPLICATION FILED JULY 27, 1912.

1,070,357, Patented Aug. 12, 1913.

HARRY J. SCHMIDT, 0F SPOKANE, WASHINGTON.

CAN-OPENER.

Specification of Letters Patent.

Patented Aug. 12, 1913.

Application filed July 27, 1912. Serial No. 711,798.

To all whom it may concern Be it known that I, HARRY J. SCHMIDT, a citizen of the United States, residing at Spokane, in the county of Spokane and State of lVashington, have invented certain new and useful Improvements in Can- Openers, of which the following is a specification.

My invention pertains to can openers, providing an easy and simple method of opening cans, and has for its object to provide a device of the character mentioned, that will cut the tin or metal covering-on the tops of cans of any size, by means ofa pointed blade descending and ascending, operated by means of a handle on said device.

Other objects will be hereinafter disclosed and shown in the drawings.

The principal features of the device are a base and upright stationary back to which is adjusted a shaft by means of a groove and a pin permitting said shaft to be raised and lowered by means of a handle, which handle is secured at one end to a projection of the upright stationary back, and is attached to the shaft by means of a pin, so that when the handle is raised and lowered it will raise and lower the shaft, and at the top of the shaft is a shoulder to which a blade sharpened on the lower edges and cut gradually to a point at the lower end, is attached; and other detail features hereinafter described and pointed out in the accompanying drawings, in which Figure 1, is the front view of the entire device; Fig. 2, is the right side view of the entire device; Fig. 3, is the right side view from above, of a portion of the shaft and of the shoulder at top of shaft and of the blade, which is attached to and held in place by said shoulder of shaft and said shaft.

Similar numbers refer to similar parts throughout the several views.

The base 10 and upright stationary back 11, are one part. The base 10 is so shaped that a can may be easily held firmly against the upright stationary back 11, and the sides 10 of the base 10 are slightly raised above said base for that purpose. The holes 10 in the base are to be used for the purpose of attaching the device to a table or board or other stand, if desired. The shaft 12 fits into a groove or depression 11 as shown in Fig. 2 made in the rear of upright stationary back 11, thus permitting said shaft 12 to slide up and down in said groove or hollowed portion 11 and be held in place by the sides of said upright stationary back which extend beyond the sides of said shaft, and partially inclose said shaft. Shaft 12 is also held in place by means of a pin which is fastened to upright stationary back 11, and the head 18 of which pin overlaps opening l3 made in shaft 12, said opening 13 being made to permit the shaft 12 to which the blade 15 is attached to slide up and down. The handle 21 is secured at one end to the upright stationary back 11 on a projection thereof 11 by means of a screw or pin 22. Handle 21 is attached to shaft 12 by means of a pin, and the head 20 of said pin overlaps opening 19 made in handle 21, said opening 19 being made to permit the handle 21 to slide when said handle 21 is being raised or lowered for the purpose of raising or lowering the blade 15.

At the top of upright stationary back 11 is a short projection 11 as shown in Fig. 2 extending toward the front, for the purpose of guiding the blade 15 and supplying a back support for said blade as said blade 15 ascends and descends or is raised and lowered. At the top of shaft 12 is attached a slightly concaved shoulder 14, at the far upper ends of which are small projections 14* extending out and overlapping the top 15 of the blade 15, for the purpose of holding said blade 15 firmly and to prevent it from slipping upward. The blade 15 which is slightly concaved, is attached near the top and upper center to the shoulder 14 and with the shoulder 14 to the shaft 12, by means of the screw and nut, or pin, 16. As shown in Fig. 3, the blade 15 is slightly concave in formation, the middle of the back from top to bottom, 15, is straight and vertical, the edges 15 are straight and vertical fro-m the ends of the top 15 to 15", and the edges 15 are gradually curved from 15 and brought to a point 15. The edges 15 of the blade 15, which extend from 15 to the actual point 15, are sharpened, for the purpose of cutting the tin or other metal.

The practical application of the device in opening cans is as follows: By raising the handle 21, the blade 15, which is attached to the shoulder 14 and t0 the shaft 12 (said shaft 12 being attached to the handle 21 by the pin 20), is raised, and as the handle is lowered it consequently causes the blade to descend, and the can being placed in the base of said device, the tin or metal forming the top of said can, will be pierced and cut by the point 15 and the edges 15 of said blade 15 as saidblade descends; and by simply revolving the can, and repeating the process, the entire top will be easily cut out, detached or severed.

Having thus described my invention, what I claim as new and useful and desire to secure by Letters Patent, is as fellows:

I claim:

The combination, in a can opener, of a base having slightly raised sides and an upright stationary back, said upright stationary back having a groove or hollowed portion in the rear thereof for the purpose of containing a shaft, and said upright stationary back having a projection at the top and front thereof for the purpose of guiding a blade, with a shaft which fits into the groove or hollowed portion in the rear of said upright stationary back, With a handle attached to the shaft and to the upright stationary back, with a concaved shoulder having projections at the upper ends, attached to the shaft at the top thereof, with a blade attached to and fitting into the shoulder, all substantially as set forth and described.

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

HARRY J. SCHMIDT.

WVitnesses:

FRANK T. POST, THOMAS B. Hnooms.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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