US914948A - Rotary planing-machine. - Google Patents

Description

E. J. HANNUM.

ROTARY PLANING MACHINE.

PPLIUATIH FILED MAE. 27, 1907. 914,948. Patented Mar. 9, 1909.

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E. J. HANNUM.

ROTARY PLANING MACHINE.

APPLICATION FILED num. 1907.

Patented Mar. 9, 1909.

4 SHEETS-SHEBT 2.

E. J. HANNUM.

` ROTARY PLANING MACHINE.

APPLICATION FILED MAB. 27. 1907.

914,948. Patent-,ed Mang, 1909.

4 SHEETS-SHEET 3.

E. J.'HANNUM.

ROTARY PLANING MACHINE APPLICATION FILED MAB.. 27. 1907. 914,948. Patented Mar. 9, 1909.

4 SHEETS-SHEET 4.

magi/MM UNITED STATES PATENT OFFICE.

ELLIS J. HANNUM, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO NEWTON MACHINE TOOL WORKS, INCORPORATED, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

ROTARY PLANING-MACHINE.

Specification of Letters Patent.

Patented March 9, 1909.

To all Iwhom it may concern:

Be it known that I, ELLIS J. HANNUM, a

citizen of the United States, residing at Philadelphia, Pennsylvania, have invented l:fertain mprovements in Rotary Planing- Machines, of Which the following is a specification. i

The object of my invention is to construct a rotary metal planing machine in Which the work is secured to a iixed table and the planing mechanism is carried on a reciprocating slide.

My invention also relates to further details whereby the mechanism is so arranged that it can be driven from an electric motor carried by the slide,

In the accompanying drawingsz-Figure 1, is a perspective view of my improved rotary planing machine; Fig. 2, is a plan view Fig. 3, is a side elevation partly 1n section; Fig. 4, is an end'view; Fig. 5, is a side elevation of a ortion of the machine showing the carriagem full lines, with the cutter head removed, looking in the opposite direction from that illustrated in Fig. 3, Fig. 6, is a transverse sectional view on the line 6-6, Fig. 2, and Fi 7, is an enlarged sectional vieW of art o Fig. 3.

A is t e bed plate of the machine, having slideways a-a for the carriage B u on which the mechanism is mounted. he slideways are designed somewhat similar to those of an ordinary planing machine. At one side of the bed plate is a work table A having undercut longitudinal grooves a', in the resent instance, to which the work to be paned is clamped. The table can be of any design without departing from the essential features of the invention.

On the carriage B are transverse undercut slideways b-b and C is a slide mounted on the carriage and arranged to be moved transversely in respect-to the movement of the carriage. Adapted to bearings c-c on the slide C is a shaft D on which is mounted the cutter head D', having adjustable cutters d held in the present instance to the cutter head by confining screws d. The shaft D has a collar d2 back of the cutter head D', which prevents it from moving longitudinally in one direction and a washer and nuts d3 screwed on to the opposite end of the shaft to hold it from moving in the opposite direction, see Fig. 6.

The slide C is adjusted by means of a screw C adapted to a lug c3 on the bearing c and is adapted to a screw threaded opening in the frame B', which bridges over the slide C and is secured to the carriage B. The end of this screw is shaped so that a handle can be applied to turn the screw to move the carriage to any position desired.

' The cutter head has an annular internal rack D2 at the back, as illustrated in Figs. 1 and 6, and engaging this rack is a pinion c secured to a shaft E. This shaft is adapted to a bearing c2 projecting from thecarriage C and passes through the elongated hub of a worm Wheel e mounted in a bearing b on a bracket B2. The hub c2 of this wheel is conned to this bearing preventin it from moving longitudinally and the sha is splined to the hub so that itcan move lon itudinally with the carriage in the worm w eel. The Worm Wheel c meshes With a wormf in a shaft F, having its bearings in a projection on the bracket B2 and on the end of this shaft F is a right angled gear Wheel f', which meshes with a pinion g on the armature shaft g of the electric motor G.

B is a frame secured to the carriage B and bridges over the slide C. The motor G is mounted upon the frame B and is secured thereto in any suitable manner. Thus motion is imparted from the motor directly to the cutter head and its slide can be moved transversely without throwing the driving mechanism out of gear. Motion is im arted to the carriage B through a train o' gears from the cutter head D.

On the side of the slide C, opposite to that of the shaft E, is a shaft II havmg a pinion h Which meshes with the internal rack on the cutter head D. This shaft is mounted in bearings c3 projecting from the slide C so that the pinion h will always be in engagement with the annular rack on the cutter head D no matter in what position the cutter head 1s 1n.

I is an inclined shaft ada ted to bearings on the carriage B and havlng at its end a worm 'i which meshes with the rack a2 secured to the bed A of the machine.

J is an arm pivoted to the shaft H and carried by this arm are two wheels and j. The wheel is arranged at all times to mesh with a gear Wheel h on the shaft H and with the wheel j'. On a shaft K is a gear 7c with which the movement of the shaft K can be reversed.

The lever J can be locked in either of its two extreme positions, or in an intermediate position, by means of a bolt i2, which passes through a slot in the frame B and in order to set the lever in any of its three positions a spring bolt 7`3 is used which is carried by the lever and is adapted to three recesses in the frame B, but this construction is not absolutely essential.

On the shaft K is a right-angled gear wheel 7c', which meshes with a right angled gear 17 on the shaft I, Fig. 3, and this gear is arranged to return the carriage quickly after a cut has been made.

In order to regulate the forward speed of the carriage B, I introduce a series of change gears between the shaft K and the shaft M" and this shaft M has a worm m which meshes with a worm wheel i3 on the shaft I. On an extension of the shaft K, in the resent instance, are four gears k2, k3, 1:4, an lc, and on an extension of the shaft M are gears m2, m3, m4 and m5. The wheels m2 to m5 inclusive are all secured to the shaft M, but the wheels ci to k5 inclusive are loose on the shaft K and any one gear can be locked to the shaft by the sliding spline k o erated by a handle from the end of the sha t in the manner common to metal working machines, so that by this arrangement four different change s eeds can be made by simply moving the spline k longitudinally.

The two wheels 'i2 and L3 are loose on the shaft I and mounted between the two wheels is a clutch sleeve n, which has teeth ateach end engaging teeth on the hubs of the two wheels t2 and i3 and extending through the shaft I from the outer end is a rod n', shown clearly in the detail view Fig. 7, and this rod has a key n2 which passes through a slot i in the shaft I and engages the clutch sleeve n. On the outer end of the rod n is a hand wheel 11,8. The hub of this hand wheel is screw threaded and ada ted to the screw threaded end of the shaft so that on turning the hand wheel the clutch can be moved so as to be thrown into engagement with either of the wheels i2 or is, or may be shifted to an intermediate position clear of both wheels when it is desired to stop the machine. Thus it will be seen that the direction of movement of the carriage B can be controlled b the operator turning the hand wheel n3 1n either direction and the forward movement of the carriage can be regulated by adjusting the s line lr, while the direction of movement of t e carriage can be controlled by the lever J.

By the above described arrangement the carnage can be moved from left to right slowly and returned quickly, or by shifting the lever J it can be moved from right to left slowly and returned quickly, thus enabling the operator to set the work in any manner desired, cutting from either the left side or the right side. l i

The operation of the mechanism is as follows: After the work is clamped to the table A then the slide C is adjusted so that the cutter head will be in position to out one face of the work and if the cutter head is on the left side of the work then the parts are adjustedso that the machine will make a slow forward feed from the left to the right and a uick return, and at each return movement flic slide can be adjusted so as to take a fresh `\cut if desired. Current being supplied to the motor G it drives the cutter head through the shaft F and the gearingf and e and the shaft E. The speed of the cutter is comparatively slow, owing to the intervention of the worm gear and the speed of travel of the carriage is also comparatively slow..-

By the above described arrangement, I am enabled to mount all the operative parts in a very compact manner upon the carriage and dispense entirely with any drive belts or intricate mechanism, which is necessary 1n the ordinary ty e of machine where the motor is mounte independently of the carria e.

claim 1. The combination of a bed, a carriage mounted on the bed, transverse slideways on the carriage, a slide mounted on the slideways, a frame mounted on the carriage and brid ing the slide, a cutter head, a shaft upon whic the cutter head is mounted, said shaft being carried by the slide, a motor mounted on the frame, and gearing between the motor and the cutter head, substantially as described.

2. The combination of a base, a carriage mounted on thel base, said carriage havingA head, said shaft being mounted on the slide,

the cutter having an internal rack, a frame mounted onythe carriage and brid ing over the slide, a motor mounted on t e frame above the slide, a bracket on the carriage, a Wheel having a hub mounted in the bracket and geared to the motor, a driving shaft mounted in bearings on the slide and adapted to an opening in the hub ofthe wheel, and a pinion on the end of the shaft meshing with the internal rack on the cutter head, substantially as described.

3. The combination of a base, a carriage arranged to slide on the base, a slide mounted on the carriage and arranged to be adjusted laterally in respect to the movement of the carriage, a shaft mounted on the slide, a cutter head mounted on one end of the shaft and overhanging the carriage, said cutter head having an internal rack, two shafts each mounted in bearings on the slide and each l In testimony whereof, I have signed my having a pinion meshing with the teeth of name to this specification, in the presence of the annular rack, driving mechanism geared two subscribing Witnesses.

to one of said shafts, and feed mechanism on ELLIS J. HANN UM. the carriage for moving the carriage, geared Witnesses: to the other of said shafts, substantially as Jos. H. KLEIN,

described. WM. A. BARR.

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