US1141073A - Magnetic brad-set. - Google Patents

Description

c. H. PARKS. M Tlc BRAD sET.

APPLICA 0 FILED IAII.15, |914..

- Patented May-25,1915.

. 11:1.A ES H. PARKS, OF WATEBBURY, CONNECTICUT, ASSIGNOB. OF-VONE-HI'JF T0' DWIGHT S. GOODWIN, OF WATERBUBY, CONNECTECVUT.

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To all 'whom 'it may coneem Be it known that l, CHARLEsH. PARKS, a citizen ofthe United States, residing at Waterbury, in the county of New Haven and '.State of Connecticut, have. invented certain or n is of small diameter and for settin the same below the surface of the wood an which is at the same time relatively small and com act in size and which is eiicient and relia le in use.

In the accompanying drawing, Figure 1 is a side-elevation of my improved magnetic 'brad-set. Fig. 2 isa longitudinal section'of shown in side elethe same, the brad bein vation. Fig. 3 is a sim' ar view of the same with the parts moved from the position shown in Fig. 2, the wood or board being also in section. 4

My magneticy brad-set comprises a shelllike body l which is'an elongated cylindrical structure, the outer end 11' of whichmay be tapered, and having a bore extending throughout the length, the portion 12 of the said bore at the said outer end 11 being of uite small diameter such as to be a-sliding t for the brad 13 or nailt'obe operated on and the portion 14 ofthe said bore extending along the remainder and major part ofthe length being of considerably greater diameter. 'llhe side Wallis tudinal slot 15.

A ram is eratively housed in the body and comprlses a main `body 16 at the inner end that is of a diameter such as to be a sliding it for the "inner and larger portion provided with a longi- V14 of the bore and which at the outer end 17 bore., A radial y p main body 16 whlch engages with-the ot 15.

is of a diameter such as to' be a slidin l it for the outer and smaller prtion. -12 o the bore and which intermediate'the said ends comprises a body extension liwhi'ch is jot slightly reduced diameter relatively td the main-body 16 so as to accommodate or house a spring 19 between the same and the o osed wall ofthe larger portion 14 of t e in 20 is provided A recessed handle 21 1s provided on the r f n inner end of the main body 16 com- Specication of Letters Patent.

the

stitutes the loading chamber, and the same is of a diameter as already mentioned to slidably receive the brad 13' and is of a length to house the brad and also to receive and house the extreme outer end of the reduced portion 17 of the ram, and which latter is ositioned therein whenthe ram isat the inltial or normal position. The outerend 17- of the ram serves as the ham "er head Patented May 25, 1915. Application led January 15, 1914. Serial Ito. 812,271. r

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and is of sufficient length to extend hrough the loading chamber 12 when the ram is moved forwardly to the driving position to the extreme amount permissible and to extend beyond the said loading chamber 12 and the end 11 of the body 10 by an .amount to correspond to the amount it is desired to set the brad 13 below the surfhce 25 of the wood or board 26. The movement of the ram is limited by the pin 20 engaged with the Slot 15.

4 The larger portion 14 of .the bore serves as an operating cylinder for the ram body composed of the main body-16 and the body extension 18 and the spring 19 which is mounted on the ram and positioned between the main body 16 and theouter end of the` cylinder 14.

The reduced portion of the ram body or body extension 18 is of such reduced diameter and length asis necessary to provide .a housing for the spring 19 when the ram 1s moved to thelimit to the driving position, as shown in :Fi 3, and in this posltlon the ram is essentia ly in abutment with the end` of lthe cylinder 14. Accordingily, as described, the ram body substantia 1y iills the cylinder 14 and extends suiiciently beyond the same at the inner end the handle 21.

#The handle extension 23 covers the e'x-4 treme inner end of the cylinder body 10 l1n the initial position, asshown -in Fig. 2, and as the ram is moved from the said position the said extreme end enters the recess 24 correspondingly.

The ram 1s magnetized so that the brad 13 is held engaged with the hammer 17 bv ma etic attraction.

am aware of the tact that magnetic deto be embedded in vices have been made for driving nails'or carpet tacks and which have relatively lar e heads.' Such devices do not involve the di culties of a device, such as described, for successfully driving such small bodies as n brads. I have succeeded in producing a demits of making the device of compact form and at the same time provides-a handle of convenient size for handling the device.

I prefer to makethe shell body 10 and the nose 11 at the outer en'd of brass or other suitable non-magnetic material.

y This construction serves to maintain the magnetism in the driver or ram indefinitely and also enables the operator to lay down 1 terial in which it may have been placed, as

i l hammer with the yform oi? a cylinder that-is appreciab Vthe instrument when not in use, without the annoyance of the instrument picking up stray pleces of steel, nails or other loose mathe device will not attract objects unless the ram is in forward-position, which can never be except when being operated. l

It will be noted that the casing 10 is a unitary structure' and has a bore composed of two portions, one of these, 14, bein in the yelongated and of relatively large diameter, and the other, 12, being quite small .in diameter. The smaller bore portion, 12, is of proper length and diameter to house the brad, 13, which latter is as usual of small diameter and has `a small head, and has additional length suiicient to house the free end Vof the parts in the normal position, as shown in Fig. 2. In this position the major or body ortion of the hammer 17 it will -benoted is oused in the main cylinder 14.

The ram is composed of the hammer 17 at one end, which fits the loadin' chamber 12 as described, and `the main .bo at the-other end, which fits t elongated and of relatively large `tion at one end that is also ram, the said handle comp y portion 16 e main cylinder 14 and intermediate the said ends has the body extension 18. The said body extension 18 1s reduced relatively to the main body portion 16 and is of proper length to form with the opposed wall of the cylinder 14 a housing for the spring 19 with the parts at the position of the extreme outward movement of the ram, as shown in Fig. 3.

The magnetic body consists of the main body portion 16 and the extension 18. That is to say that these are the parts relied upon to retain the magnetism, the hammer 17 serving virtually as a conductor of the magnetic lines of force to the brad. It will accordingly be noted that the said magnetic body is a maximum possible in bulk or mass, and this feature has an important bearing on the life of the lsame as regards the retention of the magnetism, and is particularly desirable in a percussion device, 1t bein understood that such a device is particu arly susceptible to loss of its magnetism.

I claim as my invention In combination in a magnetic brad-set, a casing having a bore composed ofa main portion in the form of a cylinder, relatively diameter, and a reduced portion that is a .t for a brad of relatively small diameter, a ram of magnetic material, comprising a main body porelongated and is a fit forthe said cylinder, a hammer at the other end that is a t for the said reduced portion of the bore, and a body extension intermediate the said ends, a spring housed between the said extension and the walls of the tive movement of the said casing and ram,

the outer end of the said ram overhan g the outer end of thepsaid casing, and a andle mounted on the said outer end of the rising a body portion engaged with.and outer end of the ram and an extension that its over and incloses the side walls of the said outer end of the casing, whereby the said main body portion of the ram is at al1 times inclosed and protected, and a handle is provided suitable for permitting mani ulatmg the said brad-set conveniently w1th one hand.

. CHARLES H. PARKS. Witnesses: e

B. F. Gmmir, ELLA J. Moons.

mclosmg the said

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