US776710A - Drill-press. - Google Patents

Description

No. 776,710. I PATENTED DEC. 6, 1904. A. P. WEIGEL.

DRILL PRESS.

APPLICATION FILED NOV. 16, 1903.

NO MODEL.

UNITED STATES Patented December 6, 1904.

PATENT OFFICE.

ALBERT P. WEIGEL, OF AURORA, INDIANA, ASSIGNOR TO AURORA TOOL WORKS, OF AURORA, INDIANA, A CORPORATION OF INDIANA.

DRILL-PRESS.

SPECIFICATION forming part of Letters Patent No. 776,710, dated December 6, 1904. Application filed November 16, 1903. Serial No. 181,400. (No model.)

To all whom it may concern:

Be it known that I, ALBERT P. WEIGEL, a citizen of the United-States, residing at Aurora, in the county of Dearborn and State of Indiana, have invented certain new and useful Improvements in Drill-Presses, of which the followingis a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to drill-presses of that character which are provided on their head stocks with gearing-and-clutch mechanism, whereby the drill-spindle under one position of the clutch mechanism may be driven at one rate of speed say the downfeedingspeed and upon reversing the clutch mechanism will be driven at a higher rate of speed in reversing or raising the drill-spindle, although, the main driving-spindle revolves at a constant speed; and it has for its object the combination of simplified mechanism whereby these results are attained without throwing any of the intermeshing pinions or gears out of gear with each other and simply by the actuation of the clutch mechanism.

The novelty of my invention will be hereinafter more fully set forth and specifically pointed out in the claim.

In the accompanying drawings, Figure 1 is a side elevation of the head of a drill-press embodying my invention. Fig. 2 is an end elevation of the primary spur-gears looking to the left on the dotted line .00 a; of Fig. 1.

The same letters of reference are used to indicate identical parts in all the figures.

A represents the usual head of any ordinary or suitable drill-press, which head is supported upon the vertical column and has two branches A and A the former carrying a vertical bearing O for the drill-spindle D and the latter carrying at its outer end a box-bearing E for the outer end of a horizontal shaft F, journaled in the box-bearing E and in box-bearings Gr H upon the portion A of the head and having fast thereon cone-pulleys B, connected by a belt (not shown) with similar cone-pulleys on a counter-shaft at the base of the column, which counter-shaft is provided with fast and loose pulleys for driving and stopping the machine, all as is common and well 5 known in this class of drill-presses.

Extending up from the box-bearings G H and forming part thereof is a bearing-frame I, containing at its upper outer extremity a vertical bearing J in line with the bearing C and through which the spindle D passes. It also has an intermediate web K, containing a horizontally-bored bearing L, in which is journaled a spindle M and from which projects a stub-spindle N. The spindle D is perfectly free to be moved up and down and rotate in the bearings O J and is balanced and actuated by hand-feeding mechanism of the usual or any suitable character in this class of drills.

Loose upon the spindle D just below the hearing J is a downwardly-projecting beveled gear 0, meshing with a beveled pinion P on the adjacent projecting end of the spindle M, and likewise loose upon the spindle D just above the bearing O is an upwardly-project- 7 ing beveled pinion Q, meshing with a beveled pinion R upon the adjacent projecting end of the shaft F.

Intermediate of the beveled pinions Q, O is a clutch member R, feathered upon the spindie D and having clutch-teeth at each end, those at the upper end engaging with clutch-teeth (not shown) on the under side of the beveled pinion O and those at the lower end engaging with clutch-teeth (not shown) on the upper side of the beveled pinion Q, accordingly as the clutch member is raised or lowered. To raise or lower the cluth member, I employ'a hand-lever S, pivoted in a friction-tight bearing (6 upon an arm 6, secured to and pendent 5 from the upper part of the frame I. This lever S is provided with a bell-crank fork T, engaging a circumferential groove 0 in the clutch member R, so that by vibrating the lever S the bell-crank will be raised or lowered, g as desired, to engage either of the beveled pinions O or Q and impart their direction of rotation to the spindle D, as will be readily understood, or, as seen in the drawings, the

clutch member may engage neither of said pinions, whereupon the spindle D will remain stationary.

Feathered upon the shaft F is one member of a clutch U, whose operating-face engages the operating-face of a similar clutch member V on a spur-gear WV, loose upon the shaft F. The spur-gear W (see also Fig. 2) meshes by means of an intermediate idle spur-pinion X, journaled on the spindle N, with a spur-gear Y, fast on the end of the spindle M, and the lever e, which actuates the sliding clutch member U, has its upper end forked to engage a circumferential groove in said clutch member and is pivoted, as at f, to a bracket 0, projecting from the headpiece A. It results from this construction that when the clutch member U is engaged with the clutch member V the spindle M is rotated through the medium of the gears X and Y and a rapid rotation is imparted to the beveled gear O, so that when the clutch R is thrown up to engage the gear 0 a similar rapid rotation is imparted to the spindle D, and this is made use of in raising the spindle D by the ordinary mechanism below for removing a ta p,while, on the contrary, when the pinion Q which receives its rotation from the shaft F through the pinion R and the clutch R is engaged with the pinion Q the spindle D receives its ordinary slow rotation, which is employed in boring or tapping.

Of course itis understood that the pinion O, which in this instance is the fast-driven pinion, gives a direction of rotation to the spindle D to permit the unscrewing of a tap, while the pinion Q, which in this instance gives the slow rotation, imparts it in an opposite direction to the spindle D for the purpose of boring.

Having thus fully described my invention, I claim In a drill-press and in combination, a toolcarrying spindle, a column with lateral arms at its head for supporting said spindle, opposing driving and reversing beveled gears journaled in said arms and through which said spindle is loosely journaled, a movable clutch feathered on said spindle between said beveled gears and arranged to engage either of them or be disengaged from both at will, a horizontal driving-shaft journaled in the head of said column and having fast thereon a beveled pinion meshing with the lower beveled gear, a stub-spindle journaled in said head and having fast thereon a beveled pinion meshing with the upper beveled gear, a spur-gear fast upon the opposite end of said stub-spindle, a spurgear in line therewith and carrying one member of a clutch and loose upon the drivingshaft, an intermediate spur-pinion journaled to the head and constantly meshing with both of said spur-gears, and a clutch-sleeve with operating mechanism feathered upon the driving-shaft and adapted to be engaged with and disengaged from the spur-gear loose upon the driving-shaft, substantially as and for the purpose specified.

ALBERT P. WEIGEL.

WVitnesses:

ALEX. B. PATTISON, INEZ S. COBB.

Images