US1566647A - Chalk-line device - Google Patents

Description

Dec. 22, 1925..

1,566,647 o. M. BRYAN CHALK LINE DEVICE Filed May 23. 1922.\

Patented Dec. 22, 19725.

UNITED STATES.

osoAn M. EEYALL'OE PERU, INDIANA.

onALK-LINE DEVICE.

Appneatifon filed May 23, 1922. serial No. 562,951. v

To @ZZ whom t may concern.'

Be it 'known that I, OSCAR M. BRYAN, a citizen of the United States, residing at Peru, in the county of Miami and State of 6 Indiana, have invented certain new and useful Improvements inChalk-Line Devices, of which the following is a full, clear, and exact description.

My invention relates to devices for automatically applying chalk to lines used by artisans for` striking a straight line and known as chalk lines. An object of my invention is to provide a combined reel and chalk device which Vwill be convenient to operate, which will be positive in its chalking operation, and which willoperate so as to cause all of the chalk to be used up and will avoid the formation vof grooves and resultant breakingof the chalk. Other Vgeneral ob, jects are simplicity, inexpensiveness and durability of construction, as well as facility in assembly and renewal of the chalk.

of chalk is mounted yfor rotation and has a f drive connection, such as suitable gearing or a lpulley and belt construction, with the line reel, and the parts are so related that the line contacts with the side face of the chalkV as the line is being drawn out and the chalk A spring holds the chalk yieldingly against the line and thus compensates forvwear, andv preferably the side wall of the casing forms.

an abutment for the chalk and is so shaped as to provide a clearance between the wall and the face of the chalk fromv the periphery` well toward its center, thus affording easy access for the line to the chalking surface and at the same time avoiding a squeezing modate the line in both its chalking and returning positions.

j My invention also includes other features .Q QSfllO and 913212115 and arrangements is being rotated, thereby causing the chalk' to be worn off evenly in an axial direction."

of parts as will hereinafter more fully appear. I shall now describe the illustrated embodiment of my invention and shall there after point out my invention in claims.

Fig. l is a side elevation of a complete device embodying my invention. Y

Fig. 2 is 'a sectional plan4 of the same, on line 22 of Figure 1. j Y

F ig. 3 is an end elevation of the same.

The ,operating parts are contained within a flat casing '1, generally'of oblong shape with one end rounded and provided with a cover 2. The reel 3 for the line 4:. is mounted in the rounded end of the casing upon a square shaft 5, ythe oneend of which is rounded and bears in the cover2, and the other end 'of which extends through the casing ,l andis secured lto the hub of a handle 6 which bears in the -side of the casing l, The handle 6 is shown'asjointed 70 so as to enable it to befolded up, the knob v entering the ,hollowv shaft 5 as indicated in Inaccordance with my invention the body.

dotted lines in Figure 2. On the cover end ofthe shaft 5 is fixed a gear wheel 7, a snitable spacing washer 8 being interposed be- 75 tween the gear 7 and the side of the reel. A friction member, such as a spring 9, may be carried by the cover in position to bear yagainst the side of the reel and steady it and prevent it from turning accidentally. 80

The chalking' element is rotatively mount- -ed on yanother transverse shaft or post 10 near the opposite end of the casing. Surrounding theV post l0 is'f a sleeve. 11, the outer surface .of which is squared, and the body y ofchalk l2, preferably of disc shape, has a square axial hole and isv disposed-upon the sleeve-l1. The bodyl of chalk 12 is preferably contained in a cup-shaped metallic holder 13 which is' disposed on the cover 90 side of the chalk and fits'a little way over the edge'leaving substantially all of the rest ofthe Vchalk exposed. The chalk and its container are freely slidable longitudinally upon the sleeve l1 and a bow-shaped spring 95 .14 having its ends inrholesi inthe cover,

bears against the metallic covered face of the' chalking element and holds the chalk against the opposite side of the casing. A portipzn of the side wall of the casing Il. im-

meiiately surrounding the bearingfor the Apost l is concaved, as shown, or otherwise shaped so as to provide an abutment for the chalk near its axis While leaving substan- 5 tially all of its side face clear from the o asing, thus affording ample room for the line engage :theside "face of the' chalk.

A bearing l5 surrounds and ts over the sleeve 1l and bears in t'heveover- 2. kfigear 'Wheel 16 is non-rotatably secured upon this bearing l5 and is joined to ther! ea'r'fvh'ee'l 7 throughy an intermediate gear l Whichis the end of the spring member 14 straddles ffthe lfge ar 'vvhfeel l 6'.

' The' fend' of the'leas'ingf adjacent the chalk- K 18. @For ycon'venieiieY -inV Y manufacture,"this vis"-'s`ho`Wn aseiitending the-,Whole vheight of the casing, 'but for purposes lof its function,

vfitfnee'd extend# no 'farther than `4rto accommodate the li-ne inl theftvv'o positionsshovvn Y Ucha'llledrandll""is flits I`position `When'- it lisv bemaybe fthe A'vliole Width'fof the casing, it

need bei providedv only i adjacent to f the "side *Ol'iof-Athe casing" WhiehVVV serves asV an abutment *vided onft-he'end' o'ffthe line to prevent its {dravvn ei'itireljv Within t'he easing,` and vithefJbottomlofthedcasing andthe-lower corg-nerof thesiide Wall may 4'Ibecut afWay,jas ylgs'hownf' atf20,"t-oprovfide a-rseat-or this knob.

` `in :dotted lines, =tting Within the@ cover to fadd'rigidity tothe Structure.

r-fltj'is n 'oifapparentfthat 'in'orderto elialk the line,' the*operator grasps the"knob and "pulls it' outfin itheffposition shon'fn'at la in contaet with 'the vexiposed side Vface 'of the ehalkf-theeoncaved; portionof the si'delrvvall "foiithenasing' surrounding the loeafringfacilin l'tating the admission ofthe? line to the vface mits -fr'otationrto the yehalking element and 550 lthe "side face-of` the "cha-lisis `thus rotated foverf-thejline an'dwernavvay evenly. 'After 5 the- =linel has been used, the operator turns rzithe vr-han'dle'fd'to reel in"the ling-during which operation, it lfalls to the position @5* "my "invention, Y v

of theachalk. As 'the'V reel"'tiirnsit"trans-y ing`te`lenientanY upright slot' adjacent one H'side providing a passage for the chalk line, fla idrive @connection between the reel and chalking element, and a spring bearing betiveenfthe other side oi' the casing and the chalking element and operative to press the chalking e'l'e'inentjfieldingly against the first mentioned'side of the casing.

2. A chalk line'jdevce"comprising'a -easing, 'line reely and:V4 a oh'a'llino "element ro- 4tati-'velyn'iounted V`,ontvvo paralfeltran'sverse `'bearings in' theA casing', and" thelialkingelenient being` slidab'le f-onV its' f'bearings; 'the feas#l l-iifigt having in `theend adjaeent" thefohalking element any upright s'lot-alongone side lproviding a passage for the chalk -line,"lthe"said *one side'y of the casing'beng fini'vvafrdlyi-concaved" opposite'` theaxes 'off the lc halkii'ifjr ele- Imentlso that' the ,said aXisJfcoincides With a fradius" yof "the coneaved portion, a spring bearing between the foth'er'* side' of the l casing f arr'd the challriug` I`,element and 'operati-ve to f press the -challin'g-elementjyieldingly*With 95 its face lagainstfthe"said concave'd'portion "llthe' casing', Tand a.fdriveconneetion between 'the re'elandr'chalking: element.

3. A 'chalk line Adevice Comprising a oas- Vingj'openatf one end,"- afreely for Ythe line 190 "mounted -in said""ca`sing and vi'nelu'ding a transverse :shaft having its bearings' inthe f-s'ide of tliecasinga gear WlieeliXeclly posi -tioned`r 'on' 'the reel-shalt,-I a second *transverse ysh-ditbea-'ring in the'sidesofthe easing be- X05 tween the' reel:-fairdopenfend of the i-'Ca`sing, ya squared sleevesurrounding theI second @transverse shaft,-a gearfw'vheellixedly positioned 'on the sleeve, clia-flkfin'g element '-it'ting upjonfthe' sleeve' and slidable lengt 110 Lti'i'dinallyv thereof, a springfinember bearing If'a einst'y thelface of the fehalking element adjacent'the"gearfav-heel and pressing itV yieldingly with 1 its n other face' 'against i -thel op- 'l-posite #side of "thef' Casing,v an'd'an interi i115 *mediate gear v pivoted fto" the Casing and "meshing With-the two said *gear-1 Wheels.

491A olialkilitne Vdevice comprising ya cas- `v ing fopenatonefend, a reel for the-line *mounted in said-cajsing'jand `linclfuding a`120 transverse 'shaft having its" 4vbearings in 'opposite' sides ofthe' easing', agear-"wheel iiXedllypositioned on the "reelfshaft, a second transverse* shaftfbearinginthe sides of' 'the Casing betweenftlie'lelfandi open' e'nd 'of-"the"n 125 easing, 'afsq'uaredjsleeve `surroun'ding the second transverse shafua' ,Qearfvvheel lixe'dly positioned on `the sleeve-*infalignmentWfith the "Flirstnamed' gear Vvvhee'l, a 'chalkin'g ele- Y einem @fitting apen-fthe `y`vsleeve and slidable" 130 Y iongitudinally. thereof, the side Wall of the against the said concaved portion of the opoasing opposite the gear Wheel being inposite side Wall, and an intermediate gear Wardly eonoaved for a portion immediately pivoted to the casing,r and meshing With the 10 surrounding the shaft for the chalking ele two said gear Wheels. ment7 a spring member bearing against the In Witness whereof, I hereunto subscribe face of the ohalking element adjacent the my signature. gear Wheel and pressing it yielding-ly OSCAR M. BRYAN.

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