US1781344A - Renewable head tool - Google Patents

Description

Nov. 1 1, 1930. J. G. SALAZAR RENEWABLE HEAD TOOL Filed July 18, 1929 "abbmcqo Patented Nov. 11, 1930 UNITED STATES JESS G. sALAzAn, or warm, camromvm A RENEWABLE HEAn 'roon Application filed July 18, 1929; Ser ia1 No. 379,229.

. The invention relates to nail-driving tools and primarily to box-makers and lathers hatchets. i

It is the principal object of the invention to provide a new and improved construction of simple and inexpensive nature which will enable a worn out or damaged nail-driving head to be replaced with a new heador will permit easy interchange of heads having 1 teeth of different degrees of fineness, or no teeth, according to the character of work be ingdone.

In carrying out the above end, the head is provided with an integral threaded stud and the body of the tool is formed with a socket into which saidstud is threaded, and it is a further aim of the invention to provide a unique washer between the head and body which is of yieldable character and will assist in holding the head against loose movement, even though the screw threads connecting it with the body may become worn. This washer-also assists in receiving the impact when blows are struck and consequently it prevents'battering of the contiguous faces of the tool body and head. It is a further object of the invention to provide new and improved construction whereby a stud on a renewable head is locked against accidental rotation within its receiving socket and whereby a washer between the head and the'tool body is held against turning with respect to eithertsaid head or saidbody. A still further object is to provide a construction in which only a minimum amount of machining is necessary during manufacture and in .whichsuch machining may be performedon readily accessible surfaces.

With the foregoing inview, the invention resides in the novel subject matter hereinafter described and claimed, descriptionbeing accomplished by reference to the accompanying drawing. a

Fig. 1is a side elevation of a box-makers hatchet constructed inaccordance with the invention. I

Fig. 2 is a detail vertical sectional view on line 22 of Fig. 1. i a Fig. 3 is a disassembled perspective view.

The drawing above briefly described illustrates the preferred form of construction and while this construction will be specifically explained, itis to be understoodthat within the scope of the invention as claimed, variations may be made. 1

- The numeral 4 denotes the tool body carried in the usual way by thehandle 5 and projecting laterally from the latter. The end of the body. .4: remote from the conventional blade 16, which end is denoted at 7 is fiat, and the body 4 is formed with a threaded socket 8 which opens through said flat end 7 and has its axis at right angles thereto. Lying against the flat end 7 is a washer 9 of yieldable material such as rather' highly compressed felt, said washer having an opening 10 aligned with the opening 8 and being provided witha lug 11 projecting inwardlyfrom the wallof said opening. Lying against the outersideof the washer 9,is a head 12 having a flat innerside and provided with an integral threaded stud13 whose axis is at right angles to said side. This stud passes through the opening 10 and is removably threaded into the socket 8. Stud 13 is formed with a longitudinal groove 14 which receives1 the lug 11 ofthe washer9,preventing turning of the latter with respect to the stud 13 and head 12. Then too,.a pointed set screw 15 is threaded into the body 4 with its pointed in ner end received in the groove 14, holding stud13 and head. 12 againstaccidental turning with regard to said body. l I lVhen applying the head 12, it may b turned to an extremely tight position on ac count of the yieldability of the washer 9 and when so tightening the head, the washer 9 will rotate bodily with it due to the connection 11-14. It is thus insured that when the head reaches its final position, the edges of the washer shall be in. common planes with the sides of the head 12 and body 4. Tightening of the screw 15 now holds all parts in V ofthe impact When strikingblows andpre- Within the scope ofth invention'qlyingagai nst said outer end of said body and 7 requires little machining; 'Iiecssitate ssuch machining only on surfaces wh ch are 7 readily accessible.

As above stated, While-thepreierredcom struction is'disclosed, variations may be made What is claimed isle. 1 I 5 '1. Anail driving'tool coinprisinga'handlee carried body projecting laterally from the V a handle axis and having a socket opening through its outer end, a compressible- Washer 7 having an opening: alined With said socket-,

anaildrivinghead lying against theouterl' a 31(18 of sa'id'vvaslierand having an ntegral threaded studpassing throughsaid opening and removably received in said socket, means for preventing relative turning of said Wash- VI er and head, and means-for locking said-stud 7 against accidental turning 2. A nail drivingztool comprising'a-handle carried body. projecting: laterally from the I handle. axis "and having a"socketT-ope'ning through its outer end, awasher lying against '2 said outer end'of said'body and having an opening registering Witlrsaid'socket',,a' nail. driving head lying against the outer side,-

ofsaidvwasher and having an-integralthread-l;

stud passing through saidopeningand: l t. "'r'emovably received in saidso'cket,rsaid stud" r 1 I havingaloilgitudinal groove and said washer" being providedvvitha lugreceived'in 1saidl grooveito. prevent.'relativerturning of the a,

Washer'and' head, and a set screw threaded in 7' saidbody and havingits'innerrend received infsaid groove to hold-said "studland head against'accidentalpturning.

In --testimony I wherjeof-v I have herewithaffixed my signature}

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