US79683A - morton poole - Google Patents

Description

No. 79,683. ,PATENTED JULY 7, 1868.

' f J. M. POOLE.

MACHINE FOR TURNING CYLINDERS.

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nu: NORRIS PETERS co, WASHINGTON, v. c

iigiv'ron'ron-rootn, on W-nimnerefn; DELAWARE, AssIe-nou' r0 HIMSELF,

- WILLIAM r ron'rnn, Ann rues-s.- roots, er'sh' imes;

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a et c eetti nrom hg mo'r' etieiraentuo. ue,;ee'e.,aatea;it1y=1, rese. l

1T6: all 607mm it may concern:

Be it known that-I, J. Mon-rote Poem, of-

Wilniington in the cuuhty-of lilewfiastle and" sewer Delaw'are have invented anew and lnlprovedfmaehine 'forlurning or Grinding Objects-Cylindrical and I def hereby declare.

.thattthecfollot'yin is a full, ele'ar andex'aet description thei e'oi, 'aebonipanying drawings making part of this specification,iu'whieh- Figure 1 is an eleva ferenee being had to the tio'n of'one side of'th o se perigeehe machine which are nece sary 'illustratemyint'ention, Fig. 2 :is a plan'view of Fig.1, showing an object in: the act of be ing rendered eylindrieah Fig.3"is. a-traneverse section through the machine, tal'renl in a'vertical plane, indicated by red line-a? a: in. Fig; 1

;---"Si1ni1arletters of reference indicate cox're spending parts in the several figures; This invention relatesto anew and useful iniprovemenuwhieh is designed to overcome certain difiiculties hitherto experienced'in ma chinery for turning or grinding "objects ey lin- Theg'reatest dif fieulty in' thisoperation has arisen from the fact-that it is impracticable to make a machine Whieh' will always admit of -;-the work-being 'adjusted'in'itso as to be perfectly'true with-respect to other partsof'such machine; for the several. parts composing the machine-could be'madefto fworkperfectl5 true at first; itnis. .obuious that they: would soon-losetheir truism inconsequence of the natural wear .of one partmovin'g upon an? "130 overcome this difliculty, the nature I my invention consists in applying two or more grinding or turning tools, or a suitable an end-a stop, which are arranged opposite-each other, on each side of the axis of the object} to be rendered cylindrical, upon a saddle or support, which is free to move trans'versely'to' the axis'of said object, and still maintain a umformor a given distance between said tools,

ortool. and stop; said saddle or support also being free to move longitudinally or in a iii: rectron; with the axis of said object, as will be hereinafter explained,

a To enable others skilled in the art to unilerstruetion and operation.

. The'horizontal bed A of the machine. m

mutin invention, r lwm describe its tot-f be constructed of any required length and" width; and should be substantially, supported upon a; 'frame'or stand somewhatgaiteri the. manner of constructing the frame andbe ci' of aturniug-lathe Upon; this horizontal bed A a slide-rest, B; is supported and guided by the tenons' on said rest fitting into groovesu a" formed in side veliwations of the bed, as shown in Fig. 3. Thisrest B lies transirersely across the bed, and may be moved. back and forth in. a direction with the length thereof by means of a leader-screw, O,'turnedby' hand or otherwisegwliich screyv is tapped through an -eye,' b*' uponthe-bottom of the rest,'-'aud utter v. upon the bedel; At or near the extremities of the bedA are bearings 'E E, which are de signed for supporting the. ends'oi the. object 'D whieh'it is required to turn-o1- grind eyliii drical. These bearings "should be i so eonstrueted that the work can be readily intrw 'du'eed into the machine and 're no'ved therefrom. .F F represent grinding wheelanrh eha are placed on opposite 'sideso'f 'theaxis'oi the object 1) and upon horizontal shaft d d, have their bearings-inlthe standardsoi lat erally-adjustable tool-rests G G, and -which carry wheelsor drums e aground-which belts pass for communicating rotary" motion to. the

grinding-wheels, Instead of employing grind-' in g-wheels suitable .turningtheir!) arranged opposite each other, maybe substituted, or,

it desirable, a single turning-tool anda stop arranged opposite it nay be em ployed instead 7 of the grinders or the two turningrtools. The

screws G Gflwith their band'wheels are de-.

signed-for adjusting and fixing the --grindi1;ig or turning tools at any desired distance apart; according to the required diameter of the ob; ject tobe operated upon. "These screws are supperted by-mealis .of bearings g 9-, which" are fast upon the upper surface of a horizontal transversesaddle', H. The saddle His hung from the upper ends of links or armsih h-h h, a

so that it is free to swing transversely-abet. is to say, it will swing at right angles to the axis of the object D. The'four arms hare pivat' its ends by suitable bearings e e cient .space'. being left between this saddle and v motion, it, is

' above mentioned.

were made pert ctly straight,

. et-ill i tools or grinders, this transverse motion being the-direct converse of the lateral motion pro-' -r=-' duced in the rest bed and want of V be turned or ground. Theefl'ect of transverse the restto allow of the swinging movement 1 If-the bed A the toolstor grinding-wheels rigidiy fixed'to an r unyielding saddle, the axis of the, object to be ground perfectly parallel to the lineof motion of the rest, and the machine set in avidentthat a perfectly cyIindricalpbject could be obtainedfiB at in practice -1t is found impossible to make a straight, and, even if it were so,- the varying travel of th I the parts out of true.

tl'ietool-resta'jis free tomove transversely and preserve a bythe irregularities of the parallelism of theobject to' motion of the rest B would be to'force one tool or grinder against the work away from it, but the saddle H, being suspendor supported in any suitable manner, so that it is free to.move transversely,

instantly yields and moves-either to the right or the left, as the case may be, and restores the,

equality of the pressure of the tools or grinders against the work.

It will be understood that my invention is specially designed for turning cylinders'to a uniform diameter after such cylinders have seemingly to the eye and even under the application of .the' calipers been turned true; in a lathe which has but one stationary tool, or which has been turned thus seemingly true, in my machine he ein described, by adjusting one of the pair of tools, and hiring it and its support so that it works singly and alone up? on the article being turned;

I am aware that it is not new to construct sides and near hand arrange turning and nd at their 11 grind -cl1ned to the axis of v operated upon, 'I also am .aware that theobbed perfectly. ject which is being wrought has been arranged; e rest with objects of difierent' .length would soon wear I Byfmy invention it will'be seen that, while the main rest Bis forced to follow any irregularities-of the bed A, the saddle H, carrying uniform distance between the and the other contact with the surt object atopposite points thereof, substantially I 'as'herein described.

grinding mechanis'm. tools shall simultaneously cut or opposite surlacesof a metallic object moving between?- t em, such tools having chance tom'ove-with one another transversely to the article being'wrought during the act or grinding or turning. ;I- such fixed or rotating axes, have'been arranged so as to have imparted to them a 'translatory movement in a direction either the object so that two which is being with relation to two such tools,

so as to have a movement of translation in the direction tioni, ,But [am not aware that two 0: more tool's,or a pair consisting of a tool and have been arrangedso as to be free to which'is being turned or .ground during the act of grinding and turning;

My invention doesnot consist simplyin any one'of the arrangements which I I am but stated, that aware of, nor inany combination of them;

to secure byLetters Patent, is- An arrangement of oneor more pairs of cut: ,ting or grinding tools, or one or more pairs composed respectively of a cutting or grinding tool and a rest, upon-a to move laterally or transversely to the ob? ject which is ment and fixation thereon in relation to one another, and dependent for their movements to and from the surface of the object placed between them to be turned or ground by their act! or surfacesof. said J. onroNroOnnL. Witnesses:

JOSEPH Harms,

WM. T. PORTER.

also'a'm aware that" grinding or'cuttin'g tools, whetheron a rest, move together laterally or transversely-to the object What I claim as my inventioni'and desire frame which is free being turned or gr0und,the tool s 'constituting'a pairbeing capable of adjust-

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