US2376226A - Knife - Google Patents

Description

May 15, 1945- A. B. BRl'sTo 2,376,226

KNIFE Filed Feb. 8, 1944- qu 5 rsig,

INVENTOR.

Patented May 15, i945 Abb Binghman Bristo, AKansas City, Mo;

v 8,' 19.44, Serin No, 521,537

Application February 4 claims.

This invention relatesto cutlery.-` and more particularly to a knife havinga-handle and a blade so formed that the handle and the blade may be taken apart and a newblade substituted in place ofv one in use in case the blade becomes broken or is worn to such an extent by repeatedsharpenings that it is no longer serviceable.

, Another object of the invention is to provide the blade with a shank consisting of frontv and rear sections having interengaging tongues to hold the two sectionsin `firm engagement with each other, said sections carryingribsfforv en'- gagement in grooves formedv in side grips disposed atL opposite sides ofthe shank and together therewith forming a handle of such dimensions that it may be easily grasped in a persons hand when using the knife. f

Another object of the invention is to provide hand grips so mounted that they are slidable longitudinally into and out of position at opposite'sides of the shank, fasteners being provided for securing the hand grips in place and preventing them from accidentally slipping outl of place against sides of the shank.

Another object of the invention is to provide -a knife having a removable blade which maybe easily removed when necessary but is not liable to work loose at other times.

The invention is illustrated in the accompanying drawing, wherein:

Figure 1 is a side elevation lof the improved knife. l f

Figure 2 is a view showing one of the side grips removed, the blade being broken off nearv the handle.

Figure 3 is a sectional view taken longitudinally through the handle along line 3-3 of Figure 1 or Figure 2. i

Figure 4 is a sectional view taken transversely through the handle along line 4 4 of Figure l or Figure 2.

A ning a recess or pocket I4 to receive the tong-.ue

8 of the companionshank section. This engagement ofy the tongues in the recesses or pockets is shown in Figure 2, and referring4 to this iig-ure it will be seen that when the twoshank sections. 2 and 3 are engaged with each other the tongues have interlocking engagement with eachother andprevent the two` shank sections from shi-fting longitudinallyV orftran'sverselyout of close fitting and aligned engagement. The two shank.

sections are of the same width and thickness and when they are in interlocked engagement with each other a shank is formed which is of even width and thickness throughout its length as shown in Figures 2,'3 and 4. The two shank sections must be firmly braced against any movement which might tend to separate them or allow transverse twisting movement of the blade during use of the knife and in order to do so there have been provided ribs I5 formed from strip of metal or other stiff material. I'hese strips which have undercut side edges, as shown in Figure 4, extend longitudinally of the shank midway the width thereof are secured against edges of the strips are beveled, las shown in Fig-` ure 4, they form ribs having undercut side edges and when the side plates or hand grips I l are slid longitudinally into place with the ribs engaged in the undercut recesses or grooves I8 formed in the hand grips, the hand grips will be prevented from shifting transversely away from the shank. 'Therefore the hand grips will be held close against the shank for the entire length thereof and when the bolts I9 are passed through straight throughout its length and tongues 4, 5 y

and 1 are hook shaped, tonguell being formed with a short bill v5I directed towards but termisunk nuts 20 the two hand grips will be prevented from accidentally shifting longitudinally Y out of place. The hand grips may be formed of wood or other suitable material and have been shown ornamented by plates 2| which are countersunk in the outer faces of the hand grips and secured by rivets 22. Under normal conditions the two shank sections will be iirmlyheld together and the hand grips firmly held in place against opposite sides of the shank with the blade Having thus described the invention, what is k claimed is:

1. A device of the character described comprising a blade, a shank' having front and rear sections each formed with spaced tongues defining pockets to snugly receive the tongues of the other section and interlock the tongues of the said sections to firmly hold the shank sections in engagement with each other, strips extending longitudinally of said shank in opposed relation to each other midway the width of the shank, said ribs having undercut side edges, removable fasteners for securing said strips against the shank sections, hand grips slid longitudinally into place against opposite sides of the shank and formed with longitudinally extending undercut grooves into which said strips fit, and removable fasteners passing through Athe hand grips and securing the hand grips against accidental displacement.

2. A device of the character described comprising a blade and a handle, said blade having a rear extension constituting a front shank section, a rear shank section, said shank sections having portions overlapped in edge to edge engagement with each other and formed with tongue receiving recesses and tongues for engaging in said recesses and interlocking to hold the shank sections interlocked with each other, ribs extending longitudinally of said shank sections against opposite side faces thereof, hand grips at opposite sides of the shank formed with longitudinal seats, said strips being slid into said seats, and removable fasteners for securing said hand grips against accidental displacement.

3. A device of the character described comprising a blade, a shank for said blade having companion sections formed with recesses and with tongues engaged in the recesses, ribs at oppositesides of said shank extending longitudi nally thereof, and hand grips detachably mounted at opposite sides of said shank and formed with recesses into which said tongues fit.

4( A device of the character described comprising a blade, a shank for said blade having companion sections formed with recesses and with tongues engaged in the recesses' to hold in said sections in longitudinal alignment, ribs at opposite sides of said shank extending longitudinally thereof and undercut along their side edges, and hand grips detachably mounted at opposite sides of said shank and formed with undercut longitudinally extending recesses, said ribs being slid longitudinally into the recesses of said hand grips and holding the hand grips tight against opposite side faces of the shank.

ABB BINGHMAN BRISTO.

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