US2240410A - Paring knife - Google Patents

Description

pril 29, 19M., J. A. MURDOCK PARING KNIFE Filed June 18, 1958 Z /J- @2M Patented Apr. 29, 1941 UNITED STAT its` PATENT OFFICE 2 claims.

This invention relates to paring knives having blades adapted to locate themselves on the articles to be pared so as to limitl the thickness of the paring and to follow the contour of said articles automatically as the blades are moved in contact with saidarticle.

One of the objects of the invention is to provide an improved paring knifeof this type.

A further object is to provide a paring knife of this type in which the blade is located completely beyond its supporting handle so that the supporting handle in no way interferes with the functions of the blade.

A further object is to provide a paring knife which can be inexpensively fabricated and which is simple and effective in use.

Other objects of the invention will appear in the following description of a preferred embodiment thereof taken in conjunction with the accompanying drawing, in which Fig. 1 is a perspective view of my improved knife,

Fig. 2 -is an elevational view thereof,

Fig. 3 is a sectional elevation thereof, the section being taken on the line 3-3 of Fig. 2,

Fig. 4 is a transverse sectional detail of the blade the section being taken on the line 4-4 of Fig. 3,

Fig. 5 is a diagrammatic view showing the manner in which the blade locates itself upon the surface of an article to be pared, and

Fig. 6 is a sectional detail view of a modified blade member comprising two cutting blades.

Referring to the drawing, the knife comprises a handle III, which may suitably consist of a strap of metal bent into the form of an elongated hollow frame. The ends of the strap may be bent into overlapping relation to form the haft portion II of the handle, these ends being secured together by spotwelding or in other suitable manner. The handle I0 may comprise a relatively small fiat portion I2 at its outer end.

I'he blade member I3 comprises the cutting blade I4 and a pilot bar I5 which is rigidly secured to the blade in advanceof the cutting edge. The blade member I3 may suitably be formed from a cradle shaped piece of steel as suggested in Fig. 4, in which is formed a longitudinal :.lct I6 which separates the blade I4 from the pilot bar I5. As best seen in Fig. 4 the blade I4 is ground on tho outer or converse side of the cradle formation to provide a at face l1, the projection of which is in slightly spaced relation to the pilot bar I5. It will thus be seen that if the blade member is moved over the surface' of a potato I8 or other article to be pared with the bar I5 in advance, then the blade I4 tends to move into the article to a certain extent and to pare off aA peeling of limited thickness.

'Ihe blade I4 and the pilot bar I5 are located in substantially parallel relation and are connected by the outer pointed or prow shaped portion I9 and the socket portion 20. The prow shaped portion I9 is preferably sharpened as at 2I so that it may be used for removing eyes from potatoes and for other boring and coring purposes. The socket portion 20 receives a stem or spindle 22 and is rigidly secured thereto by spotwelding or in other suitable manner. 'I'he socket portion 20 extends in rotatable relation through an opening in the haft portion II of the handle I0. 'I'he stem 22 extends through the handle I0 and projects freely through an opening in the fiat portion I2 of the handle I0.

The blade assembly is secured in the handle In in suitable manner so as to enable the blade to rotate freely about the axis of the stem. Thus the extremity of the stem 22 tnay be upset beyond the fiat portion as indicated at 23, and the stem may be deformed on the inner side of said fiat portion to form ears as shown at 24. Care is taken lduring the assembling operation to ensure the free movement of the blade assembly in the handle.

It will readily be undertsood that the user grasps the knife by the handle I0. 'I'he blade assembly is brought into contact with the surface of the potato I8 or other article to be peeled with the flat face I'I of the cutting blade I4 in contact with the article. The pilot bar I5 also contacts the surface of the article and locates the blade I4 so that it moves to the proper depth for paring. It will be seen from the several positions of the knife shown in Fig. 5, that the blade position is quite independent of the handles position, it being only necessary for the user to maintain the blade in contact with the article to be pared and to move the knife in the proper direction over the surface of the potato or other article being pared. The cantilever mounting of the blade locates it beyond the handle so that no element of the handle at any time impedes the proper location of the blade.

Referring to Fig. 6 it will be noted that two opposed cutting blades 25 may be provided in the relation of the blade I4 and bar ouslydescribed embodiment. It will be understood that the forward blade 25 acts as the pilot bar when/cutting in one direction and as the operating blade when cutting in the opposite I5 of the previ- Although the invention has been described in connection with specific details of preferred embodiments thereof, it must be understood that such details are not intended to be limitative of the invention except as set forth in the accompanying claims.

Having thus described 'my invention, I declare that what I claim is:

1. A paring knife comprising a handle consisting of an elongated loop of metal strap, a knife assembly in end to end relation to said handle, said knife assembly comprising a knife and bar in parallel spaced relation. and a spindle rigidly connected to one end of said assembly and extending through the extreme ends of the elongated loop handle and pivotally mounted therein. 2. A paring knife comprising a handle, a knife assembly in coaxial end-to-end relation thereto,v

said knife assembly having a cutting blade and a pilot bar in parallel spaced relation and joined together at both ends thereof, a member extending from one end of said knife assembly into said handle and pivotally mounted upon a plurality of supportsl therein. and means to prevent relative axial movement between said member and said handle.

, JAMES A. MURDOCK.

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