US1691653A - Line-casting machine - Google Patents

Description

Nov. 13, 1928.

A. W. F. GUEST LINE CASTING MACHINE Filed March 22, 1928 2 Sheets-Sheet 1 'Nov. 13, i928.

A. W. F. GUEST LINE CASTING MACHINE Filed March 22, 1928 2 Sheets-Sheet 2 in contact with the wedge bar E by a compression spring D which (as best shown in Fig. 1) surrounds the free endof a rod D connected'to said block and reacts against a nut C mounted in the fixed bracket C Since the maximum adjustment of the left-handjaw in standard machines is 30 ems, the screw D.

in the present instance need only be of a corresponding length; but, inorder "to effect its rotation from aipoint convenient to the operator,"it isipr'ovided at its end opposite that attached to the block D with a shaft ex tension D 'whi'chj is: journaled in a fixed bracket Fat the right of the viseframeC and is furnished with a spiralgearD I A rectangular nut D', threaded on the screw and slid,'

, ably mounted in the guideway C behind. the

block A, presents 'a square banking surface forthe jaw and is intended to sustain it duriing justification. It is also adapted, byrotation of thescrew, to be moved therealeng in one direction or thefother' to adjust the aw to diife'rent predetermined positions; Itwill be observed, see Fig. 1, that the nut D serves as a bearing for the'screw'D, the connection'between the block D and the sc-rew being merely a joint to holdtheseparts together longie 'tu'dinally while permitting rotation of the screw and" the thrust of the jaw to be'tra-nsmitted directly to the vertical bar-FE when the'lineisexpanded.

. ingvand-unlocking the jaw A preparatory to e moving it from ts ad usted posit1ons,"such means, 1n the present nstance, "VCOITIPIISQ" a Referring now to the means employed for.

rotating the screw D and themanner'of lockshort/shaft G journaled inthebracketF and provided with; aispiral gear G meshing with the gear l) above mentioned; The shaft .G,

crank diskG, with which it-ispro'vi ded, will" altho arrangedfin a horizontal plane, 1 0 jects forwardly preferably at an inclination to the shaftexten'sionD so that a rotatable face the operator. TheIdisk G (see Figs. 1, 4,;and 5) "is formed with; a' hub portion G pinned to the shaft G and at its outer periph- [ery' with apair of diametrically opposed notches G, An operating'handle. G which projects forwardly fromth'e frontfac'e of the disk at a point remote from the center,'is employed to -rotate the diskuG- and, thru the shaft'Gr and the spiral-gears D G turn the fscrewD in one direction or thefoth er as 'de-.

sired. When thenut D, by'suoh operation, has been fed a'longthe screw to 'a'prede'termined point, it merely necessary to look the disk against rotation to secure the nut so that it' may 'serve in the, manner before de scribed. The lockingand releasing of the disk G (as best shown in Figs. 1 and 2) is" accomplished by means of aypawl G pivot ally mounted in an upright portion of the bracket F and arrangedin superposed rela 'tion to the disk so as to engage. one or the other of the notches Gfas' the disk is 'rotated "A .the left-hand jaw moved The foregoing partsland'their mode of op 'eration are substantially known to the art and in themselves constitute no part of the present invention, the latter being directed more specifically to a device for indicating the position of the nut D. and the jaw A relativeiy to the fixed jawjB. This device con sistsin part of a rotary dialplate H which,

in the present embodiment, is operatively connectedto the disk G As best shown in Figs.- l and 5, the dial plat'efis in. the form of a gear wheel which is loosely mounted on the hub seer the disk G2 and isarranged' flush against the rear face thereof, so that markings on the front face of the dial plate may be clearly read thru suitable apertures G", G formed.

in the disk; The two small apertures G (see Fig. 4) are located diametrically opposite each other and are distinguishable by the relative markings 0 and 6. Itis thru the 'small apertures Gr that the setting of the dial is determined; the larger apertures G on the other hand, valtho arranged to expose the greater "portion of the dial markings, are merely intended to enable the operator to choose without hesitation the proper direction to rotate the disk in adjusting the jaw A. The figures of the dial herein shown run from 1 to 30 and indicate the adjustment in ems according to the nonpareil pica systemv of measure. Meshing with the teeth of the dial lateH is a small pinion H} secured to a radially slotted Wheel H which constitutes one elementof a Geneva stop-motion device, and which together with the pinion, is loosely mounted on a short. foresand-aft stub shaft H supported in an arm F? of the fixed bracket F. Theother element of the said Geneva device ;is in the form of adiskH secured to the hub of the crank disk" G and provided with an offset arm H carrying a pin H to cooperate in the usual manner with the wheel H By this arrangement,each complete rotation of thecrank disk G? will imparta' H and enable quarter-turnto the pinion the dial plate Hto be moved step by step to diiferent positions as'th e crank disk 71s, rog tated. The relativesize of the pinion H and the dial plate H is such that the quarter-- turn thus imparted to the former is just enough to bring the. next adjacent figure into position where it will beexposed to'view'thru one or the other of the small 'aperturesGr Consequently, at eachcomp'lete rotation of the crank disk,"a new figureisexposed and distance of'one em.

The ad ustment of cording, to the foregomgarrangement will a corresponding the left-hand jaw 'acnow be clear: Assuming the jaw to be set at 16 ems and a change to a longer measure de y sired, the pawl G is first lifted out of lockingsengagement with the crank disk G and the latter rotated clockwise until the dial ii I ure selected is brought into vertical aline ment with the shaft Grv and exposed to view 0. It the measure happens to be in halfems instead of full ems, an extra halt-tur1n is given the crank diskto expose the figure selected thru the small aperture at the bottom marked 96. In this connection, it should be understood that the small apertures re ferred to, along with the'corresponding locklng notches G' in the crank disk G might be increased in number (as shown in Fig. 6) in order to provide for the ad ustment ot the jaw A in ems, points, or other fractions; I

but for all practical purposes the em and halt-em adjustment suffices. When the dial and crank disk have been operated in the manner described, pressure on the locklng pawl G is released so that it may automati cally snap into the notch G and thus lock the jaw in its newly adjusted position. lhe adjustment of the jaw from a given measure to a shorter measure merely involves the turning of the crank disk 2 site direction. It will be noted (see Fig. 5)

that the spiral gear D is splined to the shaft v extension D* of the screw D so as to permit state so as to allow the jaw H to recede slight ly and thus releasethe line preparatory to its elevation from between the jaws. More over, the employment of the'bankin'g nut D for locating the jaw A in its adjusted positions allows the jaw to be shifted over by hand against the opposing jaw B for the purpose of casting blank slugs. This is an important feature of modern machines which should be preserved, otherwise the block A of the j aw'A might be threaded on the screw D. As is well understood, the long finger of the line transfer carriage always restores the left-hand jaw in engagement. with the banking nut D prior. to each casting operation. I 7

Having thus described my invention, what I claim and desire to secure by Letters Patent Oif'lht) United States is as-follows:

1. In a line casting machine, the combination of a movable line confining jaw, a r0- tatable screw operatively connected there.- with and adapted by its rotation to adjust the jaw to different positions, a crank shaft for rotating the screw, and a device operable directly by said shaft for indicating the adj usted positions of the jaw. v I

2. In a line casting machine, the combinain the oppoand adapted 'by its rotation to adjustthe aw to differentpositions,fand a crank shaft for.

rotating the screw, saidshatt being geared d'i rectly to the screw and arranged at an inclinationthereto, tor the purposedescribed. thru the small aperture at the top marked ta-table screw connected thereto and adapted by its rotation to adjust the aw to different positions, a crank disk for rotating thescrew,

and, aseparate rotary dialpper able bythe disk for indicating the adjusted positions of the jaw.

4. In a line casting machine, the combina-vi tion of a movable, line confining aw, a rotatable screw, a banking nut threaded thereon and adapted by rotationof the screw to adjust the jaw to diflerent position s,a crank disk for rotating the screw, and a separate ro' tary dial operable by the disk for indicating the adjusted posit-ions ofthe jaw.

5. In a line casting machine, the combination of a movable line confining jaw, a rotatable screw connected thereto and adapted by its rotation to adjust thejawto different positions, a crank disk for rotating the screw} and a rotary dial operatively connected with the disk so as to turn in synchronism therewith for indicatingthe. adjusted positions of the j aw.

6. In a line casting machine, the combinar i tion of a movable line 'confimng aw, a. rotatable screw connected thereto and adapted by its rotation to adjust the j aw to different positions, a crank disk for rotating the screw,

a rotatable dialfor indicating the positions of the jaw as it is ad usted and means operable by the disk for turning the dial step by step thru a given number of degrees.

7. In a line casting machine, thefcombination of a movable line confining j aw, a rotat I able screw connected thereto and adapted by,

its rotation to adjust the jaw to different p01 slt ons, a crank disk for rotating the screw,a

rotatable dialtor indicating thepositions of the jaw as it is adjusted, and a Geneva. stopmotion device operable by the disk for rotating the dial. i i

8; In a line casting machine, the combina tion of a movable line confining jaw, a rotatand adapted by its rotation to adjustthe aw to different positions, a crank disk for rotating the screw,a rotary dial plate formed with V and adapted by its rotation toadjust the jaw to different positions-a crank disk formed able screw operatively connected therewith 9. In a line casting machine, the combination of amovable line confining jaw, arotatable screw operatively connected therewith with apertures for rotating the screw, and a rotary dialoperable. by the disk for indicating the adjusted positions of the jaw; said dial being arranged" flush against the rear face of the disk so that the markings thereon may be read thru'the apertures of the crank disk."

10. In a line casting machine; the combination of afmovable 'line confining jaw, a 10tat-, able screw operatively connected therewithand adapted by its rotation to adjust-the jaw toidifierent positions, acrank disk formed ranged flush against the rear face of the disk so that a selected marking thereon may be read thru one or the other ofsaid a-pertnres,

for the purpose described. In testimony whereof, signature hereto.

ALFRED F. GUES I have affixed

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