US414056A - And thomas s - Google Patents

Description

(No Model.) I v 2 Sheets-Sheet 1. A. 0. KITTREDGE & T. S. CRANE.

UURVED MOLDING MACHINE.

No. 414,056. Patented Oct. 29, 1889.

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(N5 Model.) 2 Sheets-Sheet 2. A. O. KITTRE-DGE & T. S. CRANE;

CURVE-D MOLDING MACHINE.

Patented Oct. 29, 1889.

UNITED STATES PATENT OFFICE.

ANSON O. K iTTREDGE, OF SLATE HILL, NE\V YORK, AND THOMAS S. CRANE, OF EAST ORANGE, NEXV JERSEY, ASSIGNORS TO THE VULCAN COMPANY, OF PENNSYLVANIA. 1

CURVED-MOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 414,056, dated October 29, 1889.

Application filed February 6, 1889. Serial No, 298,796. (No model.)

To all who/n it may concern: site direct-ions; partlyin means for adjusting Be it known that we, ANSON O. KITTREDGE, the die holders in relation to the carriers; 50 of Slate Hill, Orange county, New York, and partly in the combination, with movable and THOMAS S. CRANE, of East Orange, Essex fixed crimping-dies and lateral bending-dies 5 county, New Jersey, citizens of the United connected together and adapted to be moved States, have invented certain new and useful simultaneously, of means for varying the Improvements in Curved-folding Machines, speed of the vibrating die when in operation, 5 5 (sheet metal.) fully described and represented and, in some cases, of means for varying the in the following specification and the accomstroke'of the vibrating die and for adjusting 1o panying drawings,forming a part of the same. it in relation to the fixed die, to increase or The object of this invention is to furnish a diminish the pressure upon the sheet metal; means for adjusting forming-dies in suitable and in other details of construction herein- 6: relations to a pressing-die to shape a strip of after described and claimed. sheet metal into a curved molding of any re- In the drawings the improvements are quired radius. Such moldings, being always shown applied to a machine built upon a fiat provided with longitudinal beads or angles, bed and having the movable crimping-die require the operation of crimping-tools, while sustained above the bed by a goose neck, to the curvature of the molding necessitates the introduce the sheet metal readily beneath it; simultaneous use of bending-tools to curve but the form of the bed and the design of the 20 the strip of metal during the crimping opermachine is wholly immaterial if the adj ustation. The formingdies for bending and ments be provided that are claimed herein. crimping such a molding therefore consist in Figure 1 is a plan of the machine; Fig. 2, a a fixed and a movable crimping-die, with a side elevation of the same, the carrier for the lateral or bending die arranged at each side movable die being shown in section at the of the fixed die, with its operative surface center line and the bed being shown in sec sustained above the level of the fixed die at tion on line a 00 in Fig. 1. Fig.3 is a front a suitable point to produce the required curvelevation of the machine; Fig. 4, a plan of ature in the metal when crimped. the lower die-holders, with the bed adjacent Heretofore a patent, numbered 171,917,11as thereto; Fig. 5, a transverse section of the 0 been issued, on January l1,1876,for the combed and its attachments on line 00a in Fig. i, bination of two bending-dies arranged at opwith the parts in section where hatched. Fig. posite sides of the crimping-dies and adjust- G is a longitudinal section of the bed and the able vertically, so as to produce the desired fixed die-holder on line 2 e in Fig. 8. Fig. 7 curvature in the sheet metal when laid thereis a view of the foot of a lateral die-holder on; but no means has heretofore been deinverted, and Fig. 8 is a View of the under vised for simultaneously adjusting such latside of the bed. eral dies in the various angles and positions I) is the bed,having the three lowerdies susnecessary to produce the oblique curvatures tained upon its front end, the lower crimpingfreqnently required in curved cornice-molddie 7i being mounted in a holder which is o ings. fitted movably within a vertical slot q in the The invention consists partly in the combed and adjusted vertically therein by a screw bination, with such lateral dies, of carriers with shank g 0 therefor mounted upon pivots and connected 0 are bars pivoted in the bed parallel with together to move simultaneously, the carriers the die 7L2, at opposite sides of the same, the 45 in some cases being mounted each upon two pivots 0 being extended to the front of the pivots, so as to rock transversely and longibed and provided with toothed segments 0' to tudinally to the fixed die; partly in the means rotate them in opposite directions.

for connecting such carriers to move in oppo m are the lateral dies carried in holders 1',

fitted. upon seats upon the top of carriers e, pivotedby bolts a upon the bars c and provided with tail-pieces 0, which project below the bottom of the bed and fit within slots in a movable guide 0 The guide, as shown in Fig. 8, is formed upon a slide 0 which is held in ways 0 so as to be moved parallel with the bars cby a' removed, the position of the pin a in the' groove indicated, andthe bolt 6 shown in the groove. The holder in the right side 'of'such figure is shown. turned upon the pin a and clamped at a horizontal anglewith the die 71 It will be noticed that the rotation of one of th'eba'rs c is communicated by the segments tot he other barin an inverse direction, so that the settin gof one of the diesmin any given vertical angle operates automatically to set the oppositedie at a similar opposed angle, and the clamping of either of the bars operates similarly to clamp the other bar'in its opposite position through the medium of the segments c. A screw 20 is providedbeneath the segments and connected by a swivel upon its point with a shoev, which embraces the lower edges of the segments and operates to support them both-simultaneously against the downward pressure upon the lateral dies, and the I segments are shown provided with slots adapted to receive bolts for clamping thesegments to the bed bwhen adjusted. The boltheads are shownin Fig. 4 but only holes (lettered r in Fig. 3) are shown where the slots are exhibited, as the heads of the bolts would.

obscure the slots if such heads were shown in Fig. 3. A set-screw maybe applied to either or both of the bars in any other convenient manner. The guide 0 is provided with a shank 0 which moves in the ways 0, parallel with the die 7L2, and therefore operates to tip both the carriers 6 simultaneously at the same angle'shown in Fig. 2.

The mounting of the holders 1' upon the seats on top of the carriers 6 permits of their lateralladjustment to and from the fixed die 72 while the lateral dies are also capable of being set independently in anydesired horizontalangle by turning the'holders 1' upon the pin a 'in the slot as shown at the right side of Fig. 4.

The dies are all shown in the drawings formed as flat plates clamped in the holders set-screws, as in the holders h and 2', or by fapin through the die if, as in Figs. 3 and 5. By the use of a set-screw or analogousdevice the dies may be held in different relations to the holders to bring their operative faces into the proper relation when tipped at various angles, as is indicated in Fig. 2.

The upper crimping-die h is carried in a vertically-vibrating holder h, formed upon the end ot ,a square shank n, which is adjustable by means of a screw and screw-stem la. in a'reciprocating holder Z. The holder is fitted by means of a tongue Z to a dovetail in the top of a goose-neck column s, the base of which is attached to the bed in the rear of the diesto permit the edge of the sheet metal to project below the lower die. A crank-shaft t is mounted upon the bed behind the column or'goose-neck, and is provided with an adjustable crank-pin 11/, movable in a slotted crank in the ordinary manner by a screw to, and serving, by means of a link 11?, to actuate a lever 29, pivoted upon the goose-neck and fittedto a notch 15 in the back of the tongue is tapped in the top of the carrier. The stem 9 and sleeve areprovided, respectively, with right and left handthreads,so'that the turning of the sleeve in the carrier operates to move the shank n longitudinally therein. The sleeve his provided with ahand-wheel 70 by which it can be turned while in operation, as the Jhand can be held upon the wheel while the die is vibrating .upon the sheet metal. Such means of adjustment during the crimping operation is of value, as it avoids the use of preparatory and finishing dies and enables the operator by gradually approximating the dies to workthe sheet metal gradually into the desired form, the crimping-dies being preferably set at a given distance, while the molding or 'sheet metal is run through from end to end'at the first operation. The dies may then be approximated without stopping their vibratory movement and the sheet metal run through them again,and the op- Ioo the'desired form for the molding is produced.

during the crimping operation, if desired, by applyinga crank to the screwg and turning the same to move it vertically, and the angularadjustment of the lateral dies m may be also varied in respectto their vertical angles in two planes during the crimping operation by operating the screw to to move the bars 0, or the screw 0 to move the-guide o The crank-shaft is shown driven by a friction-wheel s, which is mounted movably upon the shaft in contact with a driving-disk t actuated by fast and loose pulleys t. The

The lower'criniping-die may also be adjusted friction-wheel is driven by a spline 8 upon the crank-shaft, and may be moved while the machine is in operation by a lever b,pivot-ed upon the bed I), with a handle 19 extended to the front of the bed, and provided with a pin b fitted to a series of holes 11* to retain it in any desired position. The pin b may be fixed in the handle and the lever made to spring sufficiently to withdraw the pin from the holes when desired.

The operation of the machine is as follows: The lateral dies are adjusted in the desired angles to suit the required molding. The lower crimping-die is then set at the desired distance below the tops of the lateral dies, and the stroke of the vibrating die 7L2 adjusted to suit the character of the molding by means of the screw u. The holder h is then adjusted upon the vibrating carrier to make the die It operate in the desired degree upon the sheet metal, and the metal is introduced between the dies, as shown by the dotted line it in Fig. 3, which represents the curve of the finished molding. As stated above, the sheet metal may be moved back and forth between the crimpi-ngdies, with the adjustment of such dies varied from time to time to gradually complete their operation in forming the molding, the die 71 being raised or lowered, if required, during the crimping operation, to adjust the curvature of the molding in the required degree. Vithout shifting the driving-belt upon the pulleys t the crimping operation may be arrested by shifting the friction-wheel s to the center of the disk,and as the velocity of the crank driven by the friction-wheel increases with the distance of such wheel from the center of the disk the velocity of the crimping-die may be easily adjusted to suit the resistance of the sheet metal and the form of the dies by gradually moving the handle b until the friction-wheel is properly adjusted.

It will be seen from the above description that the construction permits the adjustment of the dies in every desired position to pressthe sheet met-a1 into the form of a curved molding, and that the action of the dies upon the sheet metal may be fully tested by the operator when first applying the sheet metal, and then varied in any required degree while the machine is in operation to produce the required results without the necessity of stopping the machine to change the tools. The quality and quantity of the work produced is thus greatly increased.

Two dotted curves h are shown in Fig. 4,

representing the opposite edges of the sheetmetal when out into segmental shape to form an arched molding. WVhen crimping such moldings, the lateral dies are set out of line with the center dies, which is easily effected by sliding the dies forward in their holders t, and the crimping-dies are preferably clamped in their holders with their rear edges closer together than the two corners, so as to pinch the sheet metal harder upon the convex side of the curve, and thus stretch it to compensate for the stock which is taken up in crimp mg.

The difference of opening between the front and rear corners of the dies is somewhat ex aggerated in the drawings but would be readily adjusted to suit the required operation of the dies if the rear corners were placed in contact.

Having thus set forth the nature of the invention, what is claimed herein is- 1. In a sheet-metal-molding machine, the combination, with movable and fixed crimping-dies, of lateral bending-dies connected together and adapted to be moved simultaneously upon opposite sides of the crimpingdies, substantially as set forth.

2. In a sheetrmetal-molding machine, the combination, with movable and fixed crimping-dies, of lateral bending-dies provided with movable carriers, and a connection between said carriers for moving the lateral dies simul taneously, substantially as set forth.

3. In a sheet-metal-molding machine, the combination, with movable and fixed crimping-dies, of lateral bending-dies provided with carriers supported each upon two pivots and thereby adapted to rock in two different directions, and a connection between said carriers for rocking them simultaneously, substantially as set forth.

4. In a sheet-metal-molding machine, the combination, with movable and fixedcrimpin g-dies, of lateral bending-dies provided with carriers supported each upon two pivots and thereby adapted to rock in two different di rections, die-holders adjustable laterally upon the said carriers, and a connection between said carriers for rocking them simultaneously.

5. In a sheetmetal-molding machine, the combination, with movable and fixed crimping-dies, of lateral bendingdies connected together and adapted to be moved simultaneously, and means, substantially as described, for adjusting the crimping-dies toward one another, as and for the purpose set forth.

6. In a sheet-metal-molding machine, the combination, with movable and fixed crimping-dies, of lateral bending-dies connected together and adapted to be moved simultaneously, means for adjusting the crimpingdies toward one another to vary the pressure upon the sheet metal, and means for verti cally adjusting the stationary crimping-die in relation to the lateral bending-dies to vary the curvature of the sheet metal, substantially as herein set forth.

'7. In a sheet-metalmolding machine, the combination, with movable and fixed crimping-dies, of lateral bending-dies connected together and adapted to be moved simultaneously, and means, substantially as described,

for adjusting the crimping-dies toward one another While in operation.

8. In a sheet-metal-molding machine, the combination, with movable and fixed crimping-dies, of lateral bending-dies connected together and adapted to be moved simultane: ously, a vibrating carrier for the movable crimping-die, and a die-holder fitted adjustably upon said carrier and movable thereon while in operation.

9. In a sheet-metal-molding machine, the combination, with movable and fixed crimping-dies, of lateral bending-dies connected together and adapted to be moved simultaneously, a sliding carrier for the movable crimping-die, a movable die-holder fitted to a socket therein,and a screw movable with the carrier and adapted to adjust the holder and die upon the carrier, as and for the purpose set forth. I

10. In a sheet-metal-molding machine, the combination, with movable and fixed crimping-dies, of lateral bending-dies connected together and adapted to be moved simultaneously, a bed supporting the fixed dies and carrying the driving mechanism, a goose-neck column sustaining a movable carrier for the movable crimping-die, means for reciprocating the carrier upon the goose-neck, and a dieholder adjustable upon the carrier, as and for the purpose setforth.

11. In a sheet-metal-molding machine, the

combination, with movable and fixed crimping-dies, of a frame sustaining the fixed. die removably, a pivoted bar mounted at each side of the fixed die, and a rocking carrier pivoted upon each bar and thereby adapted to rock longitudinally and transversely to the bar, as and for the purpose set forth.

12. 'In a sheet-metal-molding machine, the

- combination, With movable and fixed crimping-dies, of a frame sustaining the fixed die removably, a pivoted bar mounted at each side of the fixed die, a rocking carrier pivoted upon each bar,a connection between the carriers to rock them simultaneously, and dieholders adjustable upon the carriers, substantially as set forth.

13. In a sheet-metal-molding machine, the combination, with movable and fixed crimping-dies, of a frame sustaining the fixed die removably, a pivoted bar mounted at each side of the fixed die, a rocking carrier piv-,

oted upon each bar, a connection between the carriers to rock them simultaneously, and a connection between the bars to rotate them in opposite directions, as and for the purpose set forth,

1 14:. In a sheet-metal-molding machine, the combination, with movable and fixed crimping-dies, of a frame sustaining the fixed die relnovably, a pivoted bar mounted at each side of the fixed die, a rocking carrier pivoted upon each bar, tail-pieces upon the carriers, an adjustable guide slotted to receive combination, with movable and fixed crimplug-dies, of a frame sustaining the fixed die removably, a pivoted bar mounted at each 1 side of the fixed die, a rocking carrier pivoted upon each bar, tail-pieces upon the carriers,

an adjustable guide slotted to receive the tail- :pieces, toothed segmentsfitted to the pivoted bars and connected to rotate them in opposite directions, and means for moving one or both of the segments to rock the lateral dies in opposite directions, as and for the purpose set forth.

16. In a sheet-metahmolding machine, the combinatiomwith movable and fixed crimping-dies, of a frame sustaining the fixed die removably, a pivoted bar mounted at each side of the fixed die, a rocking carrier pivoted upon each bar, tail-pieces upon the carriers, an adjustable guide slotted to receive the tailpieces, toothed segments fitted to the pivoted bars and connected to rotate them in opposite directions, and means for clamping one or both of'the bars when adjusted, as and for the purpose'set forth. v

17. In a sheet-metal-molding machine, the combination, with fixed and movable crimpin g-dies, of pivoted carriers arranged at opposite sides of the fixed crimping-die, and holders for lateral dies fitted to seats upon said'carriers and movable to and from the crimpingdie and rotary upon the said seats to set them at an angle With the crimping-die.

18. In a sheet-metal-molding machine, the combination, with fixed and movable crimping-dies, of pivoted carriers arranged at opposite sides of the fixed crimping-die, lateral die-holders provided each With a fulcrum-pin upon its under side and a slot in its foot, a groove in each carrier transverse to the fixed crimping-die to receive the fulcrum-pin, and

a bolt and nut fitted to the groove and slot and. operated to clamp the holder upon the carrier, as and for the purpose set forth.

19. In a sheet-metaLmolding machine, the combination, With movable and fixed crimping-dies, of lateral bending-dies connected together and adapted to be moved simultaneously, a bed supporting the fixed dies, a ro-' Ioo tary driving-disk supported upon said bed,

mechanism for vibrating the movable crimping-die,a friction-Wheel for driving said mechanism, and a hand-lever for moving said friction-wheel to and from the center of the driving-disk While in operation to vary the speed of the movable die, substantially as herein set forth.

20. In a sheet-metal-molding machine, the combination, with movable and fixed crimping-dies, of lateral bending-dies connected together and adapted to be moved simultaneously, a bed supporting the fixed dies, a roour hands in the presence of two subscribing tary driving-disk supported upon said bed, Witnesses. adjustable mechanism for vibrating the mov- ANSON O. KITTREDGE. able crimping-die with a variable stroke, a THOS. S. CRANE. 5 friction-wheel for drivin said mechanism, and a hand-lever for moi-*ing said frictiongfigg i iiggf Wheel to and from the center of the driving- GEO KITTREDGE disk while in operation to vary the speed of the movable die, substantially as herein set \Vitnesses as to '1. S. Crane: 1o forth. L. LEE,

In testimony whereof We have hereunto set HENRY J. MILLER.

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