US446132A - haug-h - Google Patents

Description

(No Model.) 4 SheetsSheet 1. B. F. HAUGH.

MACHINE FOR GURVING IRON BARS 0R BEAMS. No. 446,132. Patented Feb. 10, 1891.

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(No Model.) 4 Sheets-Sheet 2.

B. P. HAUGH. MACHINE FOR GURVING IRON BARS OR BEAMS.

No. 446,132. PatentedI'eb. 10, 1891.

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(No Model.) 4 Sheets She.et 3. B. F. HAUGH. MACHINE FOR GURVING IRON BARS OR BEAMS. No. 446,132.

Patented Feb. 10,1891.

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. 4 Sheets+Sheet 4. B. P. HAUGH. MACHINE FOR GURVING IRON BARS 0B. BEAMS.

Patented Feb. 10,1891.

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WITNESSES: INVENTOI? UNITED TATES ATENT OFFICE.

BENJAMIN F. I'IAUGH, OF INDIANAPOLIS, INDIANA.

MACHINE FOR CURVING IRON BARS OR BEAMS.

SPECIFICATION forming part of Letters Patent No. 446,132, dated February 10, 1891. Application filed September 22, 1888. $erial No. 286,105. (No model.)

To all whom, it may concern:

Be it known that I, BENJAMIN F. HAUGH, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Machines for Curving Iron Bars or Beams, of which the following is a specification.

The object of my said invention is to produce a machine by which beams, angle-irons, or other similar forms of iron bars (used principally in architectural iron-work) may be brought to a uniform degree of curvature throughout their length in an inexpensive and expeditious manner.

Referring to the accompanying drawings, which are made a part hereof, and on .which similar letters of reference indicate similar.

parts, Figure 1 is a top or plan view of a machine embodying my said invention, the inner endof the shaft Gbeing, however,broken away to show the shaft Hand other parts below; Fig. 2, an end elevation thereof showing the driving mechanism; Fig. 3, a view, partly in elevation and partly in section, as seen when looking upwardly from the dotted line 3 3 in Fig. 1; Fig. l, a detail view looking toward 'the left from the dotted line 4 4 in Fig. 1; Fig. 5, a View looking toward the right from the dotted line 5 5 in Fig. 3; Figs. 6, 7, and 8, detail views showing how different forms of bars are operated upon by the rolls, the form of rolls shown in Fig. 8 being also slightly diiferent; Fig. 9, a similar view showing an alternative form of rolls; Fig. 10, a view of the driving and intermediate pinions and their connections and adjacent parts, similar, except in position, to a portion of Fig. 4; Fig. 11, a horizontal sectional View of the same on the dotted line 11 11in Fig. 10; Fig. 12, a transverse vertical sectional view looking toward the left from the dotted line 12 12 in Fig. 10; and Figs. 13 and 14,

. views similar to Fig. 10, except that the pinions are in different positions, two of them being shown in Fig. 14 as disengaged and out of use, illustrating the extreme adjustment in one direction, as Fig. 10 does in the other.

In said drawings, the portions marked A represent the frame-work of the machine; B, O, and D, the operating-rolls; E, a shaft by which, through suitable gears and screwshafts, the central rolls are raised and lowered; F F, said screw-shafts; G, a drivingshaft carrying the belt-pulleys; II, an intermediate shaft, and I, I, and 1 intermediate pinions by which the gears on the roll-shafts are connected.

The framework A may be any suitable frame-Work for supporting the operating-rolls and driving and adjusting mechanism and has the bearings for the various shafts mounted thereon. That portion A which carries the driving mechanism is adjustable as a whole upon said frame A,being mounted and secured thereon by any suitable mechanism to permit the adjustment, such as the tongueand-groove connection (shown most plainly in Fig. 3) and the set-screws o for securing it in position. Large nuts (1 are inserted in mortises in the frame-work, as shown most plainly in Fig. 3, through which screw-shafts F F pass. Extending up from the part A are standards a, which carry the belt-shifter A The arrangement of the rolls B, C, and D is most clearly indicated in Fig. 5. As shown in Figs. 1 and 3, the preferred form of these rolls includes two parts, or perhaps, more strictly speaking, there are pairs of rolls, the before-mentioned rolls being accompanied by counterparts B, O, and D arranged upon the shafts alongside thereof, and the rolls of said pairs are adjustable toward and from each other, so as to accommodate wider or narrower bars or beams of iron. Said rolls are shown as secured on their respective shafts by means of splines b, c, and-d, and setscrews b 0 and d are provided in their respective hubs to secure them in any desired position; but of course other means could be substituted for this purpose without departing from my invention.

In Fig. 9 I have shown a V-shaped form of rolls, which I employ when it is desired to curve an angle-iron on the plane of its median line, andin Figs. 6,7, and 8 I have shown the rolls separately (similar to those shown in the principal figures) with the various forms of iron beams and bars in seotion between them, illustrating how my invention operates on these several forms.

In order to produce agreat-er or less curva- IO the screw-shafts F and F.

and F pass down through the large nuts fit ture in the iron being operated upon, it is necessary to adjust the rolls, and this I do in most casesthrough the medium of the shafts E, F, and F and the gears connecting them,

5 by means of which the central roll 0 may be in the frame-work and engage with the bear in gsin which the shaft of theroll O is mounted, and thus by revolving the shaft E (by means of the spider J thereon or otherwise) said shafts F and F are turned and the roll 0 elevated or depressed, and the curvature in the iron bar or beam being operated upon is varied accordingly.

The shaft G carries the tight and loose beltpulleys G and G by which, through a suitable belt running from apower-shaft, the machine is driven. The belt-shifter A is employed to shift the belt from one of these pulleys to the other in the usual and wellknown manner. Upon the end of this shaft G is a spur-pinion g, which engages with the spur gear-wheel h on the shaft H, and through these gear-wheels said shaft 11 is driven.

The shaft H, as well as the shaft G, is

mounted in the part A of the frame-work, which, as before described, is adjustable on the main frame-work A. As above stated, it carries upon the outer end the gear-wheel h,

5 through which it is driven, and nearitsinner end the pinion I is mounted thereon, which engages with the spur gear-wheelD upon one side and the pinion 1' upon the other, the connection beingcontinued on this side through the pinion 1 to the gear-wheel D on the 5 same horizontal plane, one being adjustable toward theother, and the support of the second I being in the form of toggle-links 2', by which its position is permitted. to be varied. By this means an adjustment of the roll shafts b and cl toward or from each other is provided for, when, as is sometimes the case, it is desired that the radius of the curvature to be produced in the iron operated upon be shortened.

As will be noticed by an examination of Fig. 4, the bearings are all adjustable, except those for the shaft H, and the adjustment of this shaft and the pinion thereon is provided for' by making the part A of the frame ad- "60. j ustable.

When it is desired to effect the adjustment last described, the fastenings to the various bearings are loosened and (supposing it is desired that the shafts b and d shall be nearer together) the frame part A is moved somewhat to the left and secured, the bearings carrying the shaft (Z are similarly moved and secured, then the hearings to the shaft of the pinion I are moved to the right (the pinion I being at the same time raised) and secured, and, finally, the hearings to the shaft I) are moved to the right and secured, care beingof course taken that the various gear-wheels shall engage properly, as before. The pinion I being free to move up and'down as the pinions I and I" are brought nearer together 'orfarther apart, and being coupled to said pinions by the links, as shown, the same movement is maintained throughout thetrain of gearing as well when in one position as in another. then it is desired that the shafts Z2 and cl and the rolls thereon shall be farther apart, the.

operation just described is of course reversed. The purpose of adjusting these shafts b and d nearer to or farther from each other is to secure a greater or less curvature in the bars or beams being treated, and in some cases to continue the curving to points somewhat nearer to or farther from the extreme ends of the beams. The former purpose is supplementary to that for which the roll-shaft c is given a vertical adjustment. The latter purpose is not substantially modified by any adjustment of said roll-shaft c. It is also convenient to have these rolls at greater or less distances from each other in treating larger or smaller sizes of bars or beams.

When it is desired to curve or vary the curvature of an iron bar or beam,the machine is first adjusted correspondingly and the end of the beam inserted properly be tween the rolls, which, through the mechanism described, are contin ually driven forward, and the beam or bar thus carried through, producing the result desired.

In many cases in treating very long iron it is inconvenient to use a machine having its rolls in a horizontal position, and I thereforeby some modifications of construction sometimes construct my machine so that the rolls are in vertical position. I do not, however, regard this as a departure from my invention, as the machine is in all the essential features substantially the same.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, in a machine for curving iron bars or beams, of the frame A, the frame A, adjustably secured thereon, the several sets of operating-rolls adj ustablyarranged in said frame A, and the driving mechanism geared to the shafts thereof and mounted on the adjustable frame A, substantially as set forth.

-2. The combination, in a machine for curving iron bars or beams, of the frame A, the operating-rolls B B, O O, and D D, arranged in pairs and adjustably mounted on their shafts, said shafts supported in hearing adj ustably mounted on said frame A, the frame A, ad justably mounted on said frame A, and the driving mechanism mounted on mounted, substantially as shown and desaid frame A and geared to the operating scribed. rolls, substantially as set forth. In Witness whereof I have hereunto set my 3..The combination, in ainachine for curvhand and seal, at Indianapolis, Indiana, this 5 ing or varying the curvature of iron bars, of 18th day-of September, A. D. 1888.

three sets of rolls and a train of 'earin for 7 T A driving the same, consisting of spur gear- BEA JAMIN HAUGH' wheels upon the shafts of the end rolls, three \Vitnesses: intermediate spur-pinions, and toggle-links O. BRADFORD, 10 upon which the central one of said pinions is O. \V. H. BROWN.

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