US1108933A

US1108933A - Drill-press.

Info

Publication number: US1108933A
Application number: US76806913A
Authority: US
Inventors: Julius F Rutz; Julius K Luethe; Arnold O Rutz
Original assignee: RULU GAS LIGHTER Co
Current assignee: RULU GAS LIGHTER Co
Priority date: 1913-05-16
Filing date: 1913-05-16
Publication date: 1914-09-01
Anticipated expiration: 1931-09-01

Description

J. F. RUTZ, J. K. LUETHB (Kn A. O. RUTZ.

DRILL PRESS.

APPLICATION FILED MAY 16, 1913.

Patented Sept. 1. 1914.

alffoznw ITED STAJMENT era JI J'LIUS IE. RUTZ, JULIUS K. LUETHE, AND ARNOLD 0. RUTZ. OF MILYVAUKEE, WIS- CONSIN, ASSIGNORS TO RULU GAS LIGHTER COMPANY, OF MILWAUICEE, W'ISCON SIN, A (ZORPORATION OF WISCONSIN.-

DRILL-PRESS.

Specification of Letters Patent.

Patented Sept. it, 1914:.

To all whom it may concern Be it known that we, JuLros F. Ru rz, JULIUS K. LUETHE, and ARNoLo 0. Run, of Milwaukee, Wisconsin, have invented a Drill-Press, of which the following is a specification.

This invention relates to means for boring and tapping holes, and more particularly holes in pipes.

The object which we have in view is to provide a simple appliance whereby a hole of. predetermined size for a branch-pipe, pet-cock, etc., may be bored in a pipe which is already set up and access to which, with ordinary machines, is difficult or impossible. This is true, for example, where the pipe is located near a wall and the hole is to be bored on the wall-side of the pipe, which cannot ordinarily be done without removing the pipe, or only slowly and with difficulty.

Our apparatus is so constructed that it can beset up in the right position and the hole bored and tapped in a few minutes time; and this is particularly advantageous where a great number of similar holes have to be similarly treated, as is the case in applying an improvement or attachment to existing apparatus; for example, stoves and heaters.

Our apparatus is further adapted to bore the hole either onthe side 'next the operator or on the opposite side, but is intended more especially for the latter use.

The nature of our invention and its mode of construction and use are illustrated in the following description taken in connection with the accompanying drawings, and the principles thereof pointed out in our claims.

In; these drawings Figure 1 is a side elevation of a complete drill press shown in the position of operation; Fig. 2 is a plan-view of the same Fig. 3 is a longitudinal axial section of the same; Figs. 4, 5 and 6 are transverse sections on the

planes

4, 5 and 6 looking in the directionof the arrow in each case; Fig. 'Zis an end view from the right-handv end of Figs. 1, 2, and 3 with a part of the outside and bearing broken away; Fig. 8 illustrates an alternative and more elaborated form of yoke or framepiece, showing means for adapting the press to d1iferent sizes of tap; and Fig. 9 is a sideview of the removable piece thereof.

In these drawings every reference letter and numeral always refers to the same part.

A hollow cylindrical member A is provided on which. the other parts are mounted, said member A having bearings a, a at its ends. A. driving-shaft B is disposed within said member A and has journals 6', 6 turns ing in the bearings a, a said shaft 13 carries on its right-hand end a gear-wheel C keyed to the shaft by pin 0; and on its other end is a collar D secured by a set-screw d to prevent endwise movement of the shaft. Either or both ends of the shaft are provided with means such as a tapered square 6 for turning the shaft by means of a crank, Wrench, or other similar device.

On thetubular member A is mounted a yoke-piece E which has a socket 6 (Fig. 8) within which the member A fits, said yokepiece E being fixed to member A by a pair of screws e projecting into it from opposite sides. Said member E also has another socket e which is internally threaded as shown, to receive a screw-threaded sleeve F. It should be observed-that the pitch of the threads on the members E, F, is the same as that of the tap used to thread the finished hole; and where it is desired to adapt the drill for more than one size tap, the form of yoke-piece E, Fig. 8, is used in place of the form E, said form E having the internal socket e plain-bored so that themember F can slide therein, and havinga section cut out and replaced by an internally threaded ring or nut G, which has one side flat or notched, as at g, to prevent it from turning. Inthis case, the member F engages the threads of the nut G and the drill can be adapted to a tap having a difierent number of threads by substituting a different pair of members F and G having the corresponding pitch. Within the sleeve F is rotatably mounted the drill-shaft H, said shaft beinprovided with a long slot or keyway h in its right-hand end, and a earwheel lie mounted on said shaft and as a key or lug z" projecting into said keyway 72. so as to turn the shaft while permitting free endwise movement thereofig he gear-wheel I meshes with the gear-wheel G, and an outer bearing 6 is provided on the yokepiece E or E to support the end of the shaft H. Theshaft H has a squared aperture h or other holding-means to receive the drill J or the tap, as the case may be, which is adapted to bore the pipe K. The pipe-supporting, means comprises a fixed jaw M mounted on the member A and secured thereto by screws m, said jaw being forked as shown to receive the drill, and a sliding-jaw N which is forced against the pipe K. by means of a nut O threaded upon the end of the member A.

An automatic feed, which is adapted to drill or tap, as the case may be, is provided 1 in connection with the sleeve F. The latter has, on the drill-end, an enlarged flange or head f which is provided with ratchetteeth and also is perforated byorie or-more holes f parallel to the axis. The drill-shaft H has formed on its end an eccentric sheave pawl and the other'apull-pa-wl. Said pawls are held against the ratchet-teeth on the head 7" by means of two small plate-springs p mounted on the lower ends of the legs- 32' and pressing against the flat-bases g, r of the respective pawls. The pawls can, therefore, be thrown over into the positions shown in dotted lines'in Fig. 5 out of engagement with the ratchet-teeth. When the hole is being drilled, the pawls- Q, R, are set in the full-line position so that fwith each revolution of the shaft; H produced by turning the crank on the shaft B the sleeve F is rotated through an angle corresponding to two or more'ratchet-teeth and advanced by a likefraction of the pitch. After the hole has been drilled and the tap is inserted in the' holder, the pawls Q and R are "thrown over'in'to the dotted-line position and a pin is inserted into the'holes h, 7 so as effectively to bind the sleeve F to the shaft H and cause the latter to advance with each revolution a distance equal to the pitch of the tap. Thus the entire operation is performed rapidly and accurately.

Various changes and modifications in the constructions as herein shown may be made within the scope of the appended claims Without departing from the spirit of our invention, and we wish it understood therefore that the "latter is not otherwise limited than by the proper scope of our claims.

The drill is, of course, adapted to be used for other things beside pipe, and with a squared end I)? on each end of the shaft can be used in practically any situation where there is room enough to apply it.

Having thus described our invention, what We claim as new and desire to secure by LettersPatent is:

1. In a machine of the class described, the combination of clamping-means adapted to support the tool fromandfasten it to the object to be operated upon, a tool-shaft adapted to hold a rotary end-cuttingtool located on one side of said clamping-means, and means for turning said shaft disposed on the opposite side of said clampingmeans.

2. In a machine of the class described, the combination of a supporting-member, clamping-means on said supporting-member adapted to secure it in a fixed position to the work and support the tool therefrom, atool-shaft mounted and rotating on said supportingmember on one side of said clampingmeans, said tool-shaft being adapted to carry a rotary end-cutting tool, a drivingshaft carried by said supporting-member parallel to said tool-shaft, and a drivingconnection between said tool-shaft and said driving-shaft; said driving-shaft having means-for applying a crank to either end thereof.

3. In a machine of the class described, the combination of a supporting-mer'nber,-

clamping means on said supporting-member adapted to secure it in a fixed position to the work and support it therefrom, a toolshaft mounted and rotating on said supporting-member on one side of said clamping-means, said tool-shaft being adapted to carry a rotary end-cutting tool, a drivingshaft carried by said supporting-member parallel to saidtool-shaft, and a drivingconnectionbetween said tool-shaft and said driving-shaft said driving-shaft extending from said tool-shaft to the opposite side of said clamping-means and having means for 'applying a crank 'on the end opposite the tool-shaft.

4. In a machine of the class described, the combination of a supporting-member, clamping means on said supporting-member adapted to secure it in a fixed position to and support it from the work, a tool-shaft mounted androtating on said supportingmember on one side of said clamping-means, said tool-shaft being adapted to carry a rotary end-cutting to'ol' a driving-shaft carried by said supporting-member parallel to said tool-shaft, a driving-connection "between said toolshaft and. said drivingshaft; said driving-shaft extending from said tool-shaft to the opposite side of said clamping-means and having means for applying a crank on the end opposite the toolshaft, and a positive feed-mechanism mounted on said tool-shaft and operated thereby to advance 1t uniformly as it rotates.

5. In a machine of the class described, the combination of a frame having on one end clamping-means adapted to secure it to the work and support it therefrom, saidframe passing at one side of the work to the opposite side from said clamp, a toolshaft adapted to hold a rotary end-cutting tool mounted on said frame upon the opposite end thereof and on the opposite side of the work from said clamp, and a drivingshaft mechanically connected to said toolshaft and supported by said frame at the same side of the work as said frame.

6. A machine for drilling and. the like on the opposite side of the work from that occupied by the operator, comprising a longitudinal frame adapted to pass from frontside to rear-side of the work and carrying a driving-shaft parallel and adjacent thereto, means on the front-end of said shaft for rotating it, clamping-jaws mounted on and projecting laterally from said frame and adapted to fasten it to the work across one side ofwhich said frame passes, a tool-shaft mounted to rotate atthe rear-end of said machine and adapted to carry a tool on its front-end facing said clamping-means, and a mechanical driving-connection between said driving-shaft and tool-shaft.

7. In combination with a shaft having means for holding a drill or tap, means for rotating the same while permitting longitudinal movement, a screw-threaded sleeve in which said shaft turns, a threaded sta tionary support for said sleeve, and means for fixing said shaft to said sleeve so that they rotate together whereby said shaft is adapted to be advanced at the same rate as a tap of the corresponding pitch.

8. In combination with a shaft having means for holding a drill or tap, means for rotating the same while permitting ,longitudinal movement, a screw-threaded sleeve in which said shaft turns, a fixed threaded support with which said sleeve engages, said shaft having an eccentric sheave thereon, a

strap mounted on said sheave and having means for preventing its rotation whereby it is constrained to reciprocate with the rotation of said shaft, said sheave being provided with a ratchet-toothed rim, and a pawl carried by said strap and normally engaging said rim whereby said sleeve is turned through a certain angle with each revolution of said shaft.v

9. In combination with a shaft having flange, a

means for holding a drill or tap, means for rotating the same while permitting longitudinal movement, a screw-threaded sleeve in which said shaft turns, a fixed threaded support with which said sleeve engages, said shaft having an eccentric sheave thereon, a strap mounted on said sheave and having means for preventing its rotation whereby it is constrained to reciprocate with the rotation of said shaft, said sleeve being provided with a ratchet-toothed rim, and a pawl carried by said strap and normally engaging said rim whereby said sleeve is turned through a certain angle with each revolution. of said shaft; said pawl being disengageable from said ratchet-teeth; and means for fixing said shaft to said sleeve whereby they rotate inunison.

10. A machine of the class described comprising, in combination, a tubular support, a driving-shaft rotating within said support having a gear-wheel on one end and means for applying a crank thereto on the other end, a pair of clamping-jaws mounted on said support, a yoke-piece carried on said support, a tool-shaft turning in said yoke-piece, a second gear-wheel meshing with said first gear-wheel and splined to said tool-shaft, and means operated by the rotation of said shaft for advancing the same.

11. A drill-press comprising, in combination, a tubular support, a driving-shaft rotating within .said support having a gearwheel on one end and means for applying a crank thereto on one end, a pair of clamping-jaws mounted on said support, a yokepiece carried on said support, a drill-shaft turning in said yoke-piece, a second gearwheelv meshing with said first gear-wheel and splined to said gear-shaft, a screwthreaded sleeve mounted on said drill-shaft and extending into said yoke-piece and having on one end a ratchet-toothed rim or flange, a fixed internal thread carrier by said yoke-piece and engaging with the threads on said sleeve, a reciprocating pawl adapted to engage said ratchet-tooth,'and means operated by the rotation of said drillshaft for reciprocating said pawl.

12. A drill-press comprising, in combination, a tubular support, a driving-shaft rotating within said support having a gearwheel on one end, and means for ap lying a. crank thereto on one end, a pair 0 clamping-jaws mounted on said support, a yokepiece carried on said support, a drill-shaft turning in said yoke-piece, a second gearwheel meshing with said first gear-wheel and splined to said gear-shaft, a screwthreaded sleeve mounted on said drill-shaft and extending into said yoke-piece and having on one end a ratchet-toothed rim or fixed internal thread carried by said yoke-piece and engaging with the threads on said sleeve, a reciprocating pawl adapted to engage said ratchet-teeth, means operated by the rotation of said drill-shaft for reciprocating said pawl, said pawl being adapted to occupy a position out of engagement with said ratchet-teeth, and means whereby said sleeve may be fixed to or disconnected from said drill-shaft.

In witness w hereof we have hereunto set 10 our hands in the presence of two witnesses.

JULIUS F. RUTZ. JULIUS K. LUETHE. ARNOLD O. RUTZ.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Estonia,

Washington, D. C."