US535207A - Machine for cutting metal shapes - Google Patents

Description

(No Model.) Sheets-Sheet 1.

H. O. JONES. MACHINE FOR CUTTING METAL SHAPES.

No. 535,207. Patented Mar. 5, 1895.

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(No Model.) 4 Sheets-Sheet 2.

H. G. JONES.

MACHINE FOR CUTTING METAL SHAPES. No. 535,207. Patented Mar. 5,1895.

(No Model.) 4 Sheets-Sh'eet 3. H. U.- JONES.

MACHINE FOR CUTTING METAL SHAPES. No. 535,207. Patented Mar. 5, 1895.

('No Model.) 4 Sheets-Shet 4.

H. O. JONES. MACHINE FOR CUTTING METAL SHAPES.-

No. 535,207. Patented Mar. 5, 1895.

FIG. 11.

FIG. 9

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PATENT HENRY C. JONES, OF WILMINGTON, DELAWARE.

MACHINE FOR CUTTING METAL SHAPES.

SPECIFICATION forming part of Letters Patent No. 535,207, dated March 5, 1895.

Application filed January 14, 1895. serial No. 584,895. (No model.)

To all whom it may concern:

Be it known that I, HENRY O. JONES, aciti zen of the United States, and a resident of Wilmington, Delaware, have invented certain Improvements in Machines for Cutting Metal tShapes, of which the following is a specificaion.

. My invention relates to improvements in shearing machines for cutting metal beams, such as III-beams, channels, angles and various other shapes. This object I attain in the following manner, reference being had to the accompanying drawings, in which- Figure 1, is a front view of sufficient of the machine to illustrate my invention. Fig. 2, is a side view. Fig. 3, is asection on the line 3-'3, Fig. 1. Fig. 4, is a plan view of the lower cutter. Fig. 5, is a perspective view of one of the lower side knives. Figs. 6, 7 and 8, are diagram views illustrating the different movements of the machine. Figs. 9, 10 and 11, are views of modifications and different arrangements of the cutters.

The main object of the invention is to so construct the machine that it will first cut the web of an I-bar, for instance, by a vertical movement and then by a lateral movement first in one direction and then the other, shear the flanges of the beam. By this means the cuttingis accomplished Very quickly and with a single sliding head. i

A A are the housings of the machine having guide ways a a for the vertically reciprocating head B, hung to the crank shaft D by the yoke frame I) b and sliding blocks 1) which are adapted-to the cranks of the shaft. The crank shaft D is mounted in suitable hearings in the housings A and is driven from the intermediate shaft D through gears d 01, and this shaft is driven from the driving shaft D by a pinion d and gear wheels 01 The driving shaft D can be driven direct by an engine, its connecting rod being coupled to the crank 01 or it may be driven from line shafting if more convenient.

-A' is the base on which are ways a for the lower stationary cutters a and adjustable head blocks a carrying the side cutting knives. The lower dies or cutters o, are held in place by bolts a and can be removed and different sized cutters can be placed intheir stead. The cutters a have detachable blades held in position by bolts a as shown in Fig. 4, so that the blades can be turned or replaced.

The head blocks 0L are laterally adjustable to accommodate different widths of beams and are moved toward and from each other by a screw A having a hand wheel a This screw has a right and left hand thread and one thread is adapted to one block and the other to the opposite block so that they will move in unison toward or from each other. On each head block are blades of, shown in Fig. 5, which are preferably made square in cross section and the bolt holes are so arranged in the block that the knives can be turned or reversed to present a good cutting edge.

Coupled to the upper portion of the head B is a piston rod E connected to a piston E in a cylinder E mounted on the frame of the machine. Fluid under pressure is admitted to the space under the piston so as to counterbalance, to a certain extent, the weight of the reciprocating head B.

The head B is made hollow in the present instance and hung to a pivot barF is a lever I carrying the upper cutting knives i 1;. These knives are mounted in the lower portion of the lever, in any suitable manner. In the present instance they are adapted to sockets and are secured in place by bolts 2' Atthe end of each long socket for the side knives are hard metal bearing plates i which rest in grooves, being inserted through slots in the sides.

Carried by the head B is a short crank shaft F having a crankf on which is mounted a sliding blockf' adapted to a slide way i in the upper portion of the lever I. The crank shaft F is adapted to removable bearings b in the head B so that the shaft can be readily inserted or detached.

On the front end of the shaft F is a bevel wheel 9 meshing with a bevel pinion g mounted on a vertical shaft G having its hearings in a bracket B on the slide, and adapted to slide in the hub of a bevel pinion H, to which it is splined so that it will turn with the pinion. This pinion is mounted in a fixed bearing A secured to the frame of the machine and gears with a pinion J on a shaft J mounted in bearings in the frame of the machine. This shaft J is coupled to a gear wheel j by a clutch j so that the shaft can be thrown into and out of gear with the gear wheel. This wheel j is geared to the wheel d which is also loose on the shaft D and is coupled thereto by a clutch d which can also be thrown into and out of gear by the operator.

On each side of the frame of the machine are mounted chocks S which consist essentially of a shaft 3 adapted to bearings s and on each shaft is an arm 5 and a handle 3 The handles can be turned in such a manner that the arms 5 will bear directly upon the rear of the head blocks a and thus take the strain off the adjusting screw A when the machine is shearing.

When the blocks are adjusted for different sizes of beams filling pieces may be inserted between the blocks and the chocks if found necessary.

In Fig. 9, I have shown a modification in which two sets of knives can be adjusted in position for use, using an intermediate head block a and dispensing with the central upper knife t'. A Wedge 1' is inserted between the two knives '17, i and a confining screw i is passed through the block into the head. This arrangement is only used when beams of the smaller sizes are to be cut.

The side knives are double ended so that when one edge is worn they can be turned to present new cutting edges and it will be noticed in Fig. 1, of the drawings, that there there are two sets of these knives at each side of the center knife 2'. By this arrangement I can use the intermediate knives as fillers, yet when a narrower I-beam is to be cut the outer knives can be detached and the intermediate knives become the side cutting knives and when still smaller beams are to be out both side knives can be removed leavingonly the central knife. When other sizes are to be out these knives may be detached and others substituted therefor and suitable wedge blocks and filling pieces may be used, as shown in Figs. 10 and 11.

The operation of the machine is as follows: If for instance an I-beam is to be out, as shown in the drawings it is mounted in position on the lower cutter and the head blocks adjusted so that the side knives of the said block will bear upon the flanges of the beam. The chocks are then turned so as to relieve the screw of the pressure, the clutch d is thrown into gear imparting motion to the shaft D, which will force the head B down and the upper knives will cut through the web of the beam, leaving the flanges intact. The clutch is then thrown out of gear and the clutch j thrown into gear so as to impart motion to the shaft J which will turn the short crank shaft F carried by the head B. This crank shaft will give a lateral motion to the lever I carrying the upper knives which will cut one flange of the I-beam as shown in Fig. 7, and as the cam shaft revolves it will out the other flange, as shown in Fig. 8, after which the clutch j is thrown out of gear and the clutch d thrown into gear to raise the head 13 and its knives.

When cutting single angle bars, T or other shapes, only one side cutting knife is used and if a machine is to be built especially for this purpose it need only have the single side motion instead of the double motion described above.

In some instances the sides of the upper blades may be slightly curved, as shown in Fig. 10, to properly shear the flanges without undue crushing.

I claim as my invention 1. The combination in a machine for cutting metallic shapes, of the reciprocating head, a lever pivoted thereon and carrying the upper blades, with mechanism for laterally moving the lever, substantially as specified.

2. The combination in a shearing machine, of the sliding head, a pivoted lever carried thereby, blades mounted in the lever, acrank shaft carried by the head by which a lateral motion is imparted to the lever, substantially as described.

3. The'combination in a shearing machine for cutting metal shapes, of the base, the head blocks adjustable thereon, side blades carried by the head blocks and lower blades carried by the base, a reciprocating head, a lever pivoted thereto, upper blades secured to the lever, mechanism for laterally moving the lever so that the blades will not only cut on the face but on the sides, substantially as described.

4. The combination of the frame of the ma chine, the reciprocating. head adapted to the frame, a pivoted lever hung to the head, means for laterally moving the lever, blades carried by the lower portion of the lever, a base, head blocks adj ustably mounted on said base between which the metallic shape is held, and checks back of each head, substantially as described.

5. The combination of the frame, the sliding head, mechanism for reciprocating said head, a lever pivoted to the head, blades carried thereby, a crank shaft adapted to impart motion to the lever, a vertical shaft carried by the-head and geared to the crank shaft, a pinion splined to the said shaft, so that the shaft will turn with the pinion but will slide therein,adriven shaft geared to the pinion, substantially as described.

6. The combination of the frame, the base, the lower central knife secured to the base, the laterally adjustable head blocks mounted on the base, knives carried thereby, with a vertically reciprocating head, a laterally vibrating lever thereon, with upper knives adjustably secured to the lever, substantially as described.

7. The combination in a metal shearing machine, of the reciprocating head, a lever thereon recessed to receive blades, detachable central blade, side blades and means for securing said blades in position, substantially as described.

8. The combination in a metal shearing machine, of the reciprocating head, the lever pivoted thereto having pockets, central and side blades adapted to said pockets, said side blades being shaped at their opposite ends so that they can be reversed, substantially as described.

9. The combination in a beam shearing machine, of the base, the vertical reciprocating head, pivoted lever thereon carrying the upper blades, the lower blades mounted on the base, side knives also mounted on the base, the sides of the upper and lower blades for cutting the webbeing shaped so as not to im-

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