US1565668A - Hammer - Google Patents

Description

M. NlcHoLLs HAMMER Filed March 5. 1924 IN VEN TOR Wvwu BY mw f.

A TTRNE YS Patented Dec. l5, 1925.

` UNITED STATES PATENT OFFICE.

MOSES N ICHOLLS, F LIBERTYVILLE, ILLINOIS,ASSIGNOR OF ONE-HALF TO MILTON .L WOLCOTT, 0F EXELAND, WISCONSIN.

HAMMER.

Application filed Marclr, 1924.` Serial No. 696,631.

To all 'whom t may concern: i

Be it known that I, Mosns NToHoLLs, a citizen of the United States, and afresident of Libertyville, in the county of Lake and State of Illinois, have invented a new and useful Improvement in Hammers, of which the following is a full, clear, and exact description. My inventionA relates to improvements in hammer constructions, and is an improvel ment over fthe hammer construction set forth in my copending applications for patent on hammer, Serial Nos. 604,927 and 677 ,7 90, in which hammer handles were disclosed and shown provided with liber inserts in that portion of the handle intended for projection through the hammer head for the pur` pose primarily of preventing the shrinkage of the hammer handle adjacent to the head. An object of my presentiinvention is to provide a hammer construction in which an insert is provided for reenforcing the handle of the hammer adjacent to the head, and which not only prevents shrinkage of the handle at that point, but which provides great strength to the handleV at that point, thereby precluding the possibility of the handle breaking at that point where it joins the head. j

A further object of my invention is to provide a hammer construction in which means is provided for securely fixing the head against unintentional removal from the handle by the use of a single wedge member. A further object of my invention is to provide a hammer construction of the type described in which great strength is given to the handle adjacent to the head, yet without sacrificing the necessary resiliency of the handle necessary to provide a hammer eflicient in operation.

Other objects and advantages will appearin the following specification, and the novel 4features of the invention will be particularly pointed out in the appended claim.

My invention is illustrated in the accompanying drawings, forming part of this application, in which- Figure l is a sectional view of an embodiment of my invention, v

Figure 2 is a side elevation of a portion of the mechanism illustrated in Figure l,

Figure 3 is a sectional view along the line 3--3 of Figure 2, and

' handle l.

Figure et is a sectional view along the line 4 4 of Figure l. i

In carrying out my invention I make use of the ordinary type of wooden hammer i The handle l has a tapered rabbeted portion 2 on each side of its outer end extending from a point to the rear of the neck 3 of the handle to the extreme outer end thereof. The Vconfiguration of this rabbeted portion may be more clearly seen from inspection of Figure 2, and extends entirely across the handle l, at that point thereof intended for projection through a hammer head el, and partially across the neck portion 3 of the handle.

VA pair of steel inserts 5, substantially the same shape as the rabbeted 'portions 2 ol the handle l, is disposed against the inner Wall of the rabbeted portion, and fiber strips 6 are disposed on top of the steel inserts 5. The thickness of 'the steel inserts 5 and the liber inserts 6 is sullicient to cause the outer surface of the fiber strips 6 to lie contiguous with the outer side walls of the handle l and thereby completely lill the rabbeted portions 2 of the handle. i

A pair of spaced apart rivets 7 project through the liber strips 6, steel inserts 5, and the neck portion 3 of the handle 1, and serves to securely bind the steel and liber elements to the handle l.

The outer end of the handle l is projected through a tapering opening 9, provided in the hammer head l, and a steel wedge 10 is driven into the outer end of the handle l, there being a slot ll provided in the steel inserts 5, and liber strips 6 to permit the entrance of the wedge l0. vWhen the wedge 10 is driven so that it is entirely embedded in the hammer handle, the adjacent portions will be crowded into close engagement with the opening 9 and thereby prevent withdrawal or' the handle from the head 4.

A locking pin l2 is projected through the head portion 4; and through the wedge 10 for the purpose of securely fixing the wedge against dislodgment from the handle, and to further assist in the permanent fixing of the head et upon the handle l.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood. My improved hammer construction as described provides a hammer in which great strength is given to the handle at its normally weakest point i. e., that point adjacent to the head 4. My improved construction there fore provides a hammer that is'exceptionally well lit for use in withdrawing nails, spikes, or the like, with the portion 13. This use, if excessive, will render the ordinary type o'l' hammer handle ineliicient in a very short time, and inally result in the breaking of the handle due to the fact that no reenforeing medium is employed in theordinary handle.

Uy improved handle construction willnot entirely lack resiliency, sincethe portion of the steel inserts extending through the neck oi the handle are relatively narrow and tlierei'orey possessslight, but adequate degree of'resiliency in the handle.

There willbe no shrinkage or undue expansion of the wooden part` of the handle 1 in the head at, sincethis part oi:v the handle comprises an extremely small percentage of the handle construction at th'e head 4.

The majorportion of the handle at thel head 4 is constructedof steel, and fiber, as reference to Figure 3 will show.

The last, and one of the most important advantages obtained in the operation of my improved hammerconstruction, is that the possibility of the unintentional dislodgment of the head. et' is entirely precluded', due to the fact that the head is actually keyed to the steel inserts, and is fitted upon separate steel inserts forming a part of the handle and incapable of shrinkage or distortion by normal usage.

I claim:

In a device of the type described', a handle for supporting a tool head, superimposed metal and liber inserts disposed at the side of said handle at the tooli head supporting' end thereof, said inserts being of' uniform thickness throughout their length, said liandle tapered towardthe toolsupporting'end to a relatively narrow extremity, andsaid inserts being further fashioned to the same width as said handle at thel outer end and being relatively narrow in width at the neck portion of the handle, and meansfor securing said inserts against removal from said handle.

Mosns NIo'HoLLs,

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