US106120A - Improvement in boring-machine - Google Patents

Description

" "fl'o all whom it Quay/concern.' y l Be ,it known thatIwe, WILsoN W, lG'AnuY and l GEORGE W. HARRIS, of` Lowell, in the county of' Midl dlesex andState of Massachusetts, have invented new canta (salles winsovw.;OAREYAND G oncnw; HARRIS, orLow'nmgA MASSACHUSETTS.

1 Lette/rs Patent No. 106,120, dated August 9, l1870.

.IMPROVEMENT IN BORING-MACHINE.

` fl'lie 4Slzahec'inle referred. to in these Letters Patent and making part of the sme and useful Improvements inpBol-ing-liIaC-hines; and we do` hereby declare that the followingis a full and exact description thereof, reference' being had 'to 'the accompanyingdrawings and to the letters of refer encemarked-thereon.

The nature of orinvention consists in First,providinga-boring-niachine with an adjustar ble table havinga pivoted, gaugefbar, a slide, and

clamp-screw, as described. l

" #l 'Secondyin the i device for adjusting and operating the perpelulicularfand" horizontal bits ota boringff llfigure `1 'representsajside elevation ofonr improved- Y boring-machine.

' AFigure 2 -reprcsentsa plan: of the same.

Figure 3 representsa front'elevation of the same.

Fgurc4 represents aside elevationof the same,`

adjustable head-stools, j

Similar letters iu thedilferent figures indicate correspondingparts'.

We constrnct;the frameoi .our improved boring-` l with parts broken dnt,showing the operation of the machine of suitable end-pieces act, which are provided with` -boxes :andthe requisite caps, through and 1n` which Vthe driving-shaft?) revolves.

These end-pieces agafare` secured 'together bythe gir-ts b b and c, the girt cforming the top of the frame, which is iinished` olf true andsmooth, and provided with a suitable slot on fand in which the adjustable head-stock c' slides and-rests, the bottom 4side of `which being finished'to .correspond with thctop of j the frame.

Through the bottom of the 4head-stock c' a suitable stud, g, passes, which is provided with awheel, f', and pinon f, this pinion gearing into the rack c', which is secured to the under side of the girt c.

By this 'devicethe heini-stock c' is adjusted as de sired. When the head-stockctis required t-o be used permanent, it is secured tot-he girtcby suitable bolts or screwk. l U l Between the end-pieces c a, of the fraine, and se- `cured to the driving-shaft 11,"is the adjustable pulley d, which is adjusted andysecured in the required'loc-ation by means of a set-screw. l v

Outside fof the frame, and secured to the driving'- shal't are Ythe tight and loose pulleys d and e, 'from which rnot-iou is imparted to the entire machine. Passing through the head-stock c', and running 1n the bearings whichare located vthe 'required distance from the to'p of the frame, is the horizontal shalt g', one end of which is supplied witlra suitable device torV 'stock' c in the desired location.

Between the guide h and the adjustable head-stock I. vc', and sliding on the shaft g', is the/pulley It', which connects with 'the adjustable pulley d by'a belt, and is provided with a suitable spline, which is secured to tl1e`sa| ne,`this spline sliding inthe slot in the shaft g',

this adjustablehead-stock c' being constructed 'of the required jsize and shape, inthe front of. which, .at a suitable distance apart, is provided with boxes, which Y form bearings for'the upright or perpendicular shaft t', on one end of which is'fornied asuitable device for the purpose otholdingV the bit, the other end being `secnredto the swinging lever t" by a socket bearing.

` ,Between thebearings, and running on'the shal'ti,

`is `the pulley which connects with the adjustable 'pulleyd by a suitable belt, which passesover the' binders jj', whichvare secured to the adjustable head- This pulleyjl is provided with a spline, which slides in the slotmade in theshaft'i.-` g

Located between the topbearngand'swinging lever t', on the shaft '5,' is' the adjustable collar la', which regulates the depth of the hole to be bored, more or less.

Vl is'an arm, which is pivoted'to the adjustable headstock c' at one end, the other end connecting with and hingiug tothe swinging lever i. p -Between this arm lanci adj ustablev head-stock c' is the slotted guide Z', in 4and through which the lever 'i' moves. l

On thetop oi'. this lever i', each side of the guide l',

are thenotches m and m', which keep therod u in its required position when in operation, the rod nbeing placedin the notch m" when the horizontalbit is used-and' in the notch m' when the perpendicular bit .is used, 4this rod a connecting with the foot-treadle s',

which'is hinged at the bot-tom to ,the Aback part'ot' the frame.

n' n are elbows, which are secured to the frame, and connect with the strap o and o', the strap o connecting with the guide h, the strap o connecting with the spring seat p, through which the rod p' passes, and is connected to the swinging strap g at the bottom, the other end passing through-the swinging lever-t, the

strap q being pivoted to the girt c on both sides, the

spring seat p being connected to the lever t" by suitable rods q q'.

i r is an adjustable' collar, which slides on the rod p',

regulating the tension ofthe spring r', which is placed on the rod p', between the collar r-and spring seat p.

s ls areadjustable rods used when operating the np- `right bit for' keeping the work in its required place.

tisthe adjustable table, which is raised and descrew o' and circular slot c.

rBhe boring-machinebeing thus constructed-and arranged, and its several parts adjusted in position, is then ready for use.

For upright boring or using the uprightbit, the` operator disconnects the strapsel o' from the spring seat 1), places the wood to be bored on the table t', between therest a and the ways w, securing the same to the table t by sliding down the adjustable rods s s, and securing the saine by aid of the thnn'lh-scrcws, thus holding down the piece of ywood to. he bored.

Power is then applied to the tight pulley ll', which communicates motion to the pulley j bythe belt passing over the-.binders jj around the adj nstable pulley d;

The upright bit being in motion, the operator, with Y his foot, presses' down the freadle s, which depresses lcan be bored ou this line parallel with the front ofthe table t,

,When the holes come irregular, or more than this one line, which cornesdirectly in under the bit, by operating the wheel f', aided by the pinion f, which v the notch my into the notch m.

gears into the rack c', the adjustable bead-stock c is adjusted back or forth at will. At the same'- time the adjustable pulley d canl be adjusted as desired, and secured by a'setscrew. This adjustable head-stock c' can be secured, if required, bythe screw k, thus bringing the bit over any point desired.

For horizontal boring, the straps of o are connected to the spring seat jp, and the shaft 'i is disconnected from the swinging lever i', and the rod n is slid from rfhe adjustable rods s s are elevated and secured. The piece to be bored is placed on the table t, between the rest u and ways w, the rest being firmly secured by the thumb-screw c, thus securing the piece to be bored in its desired location. rlhen the same operation is required to bore horizontally as in upright boring.

When holes are to be bored angular, the rest u' is turned on its-pivot, bringing the wood to its required angle, and firmly secured by the thumb-screw c.

'lhns it will 'be seen vthat upright, horizontal, and angular boring can be accomplished by this one maf chine, where heretofore it has taken two distinct ruachines. Also, the adjustable head-stocke' can be pew lnancntly secured to the frame, or adjusted nicely and accurately, as required, so as to bringthe upright bit over any point desired That we claim as our invention, and desire to secure by Letters Patent, is

1. The arrangement ot' the siide u, the pivoted gauge-bar a', clamp-screw fv, and table t,'in the manner and for the purpose shown and described.

2. The levcr i', arm l, `rod 4)', spring seat up, spring r', rods q q', adjustable collar r, iucombination with y the arbor i, rods n n', and footderer s', all constructed and arranged as described, for the purposes specified.

WILSON NV. CAREY. GEO. XV. ARRIS.

W ituesses W. W. GLADNER, Guo. E. PEVEY.

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