US766568A

US766568A - Boring-machine.

Info

Publication number: US766568A
Application number: US17914003A
Authority: US
Inventors: Frederick Clyde Zeek
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-10-30
Filing date: 1903-10-30
Publication date: 1904-08-02
Anticipated expiration: 1921-08-02

Description

UNTTED STATES Patented August 2, 1904.

PATENT OFFICE.

BORING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 766,568, dated August 2, 1904.

Application filed 001301381 30, 1903. Serial No, 179,140. No model.)

To (1/7] "III/077D it may (v ii/(Writ:

Be it known that I, FREDERICK CLYDE ZEEK, a citizen of the United States, and a resident of Muncie, in the county of Delaware and State of Indiana, have invented a new and Improved Boring-Machine, of which the following is a full, clear, and exact description.

My invention relates to certain novel and useful improvements in boring-machines, and specifically appertains to a mechanism of the type referred to designed especially for use in boring holes in the joists of ceilings or floors for the passage of concealed electric wires. In carrying out the present invention I have in view the provision of a mechanism of this class which will be simple in its construction and embodying the desired and essential features of durability and convenience, especially the latter, inasmuch as my machine may be placed so as to bore quickly and properly a plurality of openings or holes in joists spaced apart at varying distances.

A further object of the invention is to provide an improved brace for the main portion of the machine, so that the throw or movement of such main portion may be limited.

Still another object of this invention is to provide a plurality of boring-bits and a novel means for driving or rotating such bits, said means being mounted upon or secured to a movable frame, which frame also performs the function of a lever.

"ith the above-recited objects and others of a similar nature in view my invention consists in the construction, combination, and arrangement of parts, as is described in this specification, illustrated in the accompanying drawings, and set forth in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective view of a machine embodying my improvements, said view also illustrating the manner of applying the same when in use. Fig. 2 is a bottom plan view of the boring-bits, the mechanism for driving the same, and the immediate connecting parts; and Fig. 3 is a vertical sectional view taken through the lower portion of the machine,

showing in elevation one of the boring-bits and the means for driving said bit.

Referring now to the accompanying drawings in detail, the letter A designates a horizontal frame or supporting member formed in the present instance of two bars or side members 5 5, said members being connected through the medium of the cross-blocks 6 6. As will be seen by reference to Fig. 1, this frame is designed to be placed upon and supported by the joists of a building, such joists being designated by the letters at and 1 in the aforesaid Fig. 1.

Depending from the supporting-frame A and rigidly connected thereto through the medium of hanger-bolts 7 are wooden hangerframes 8 8, each of said frames carrying at its lower end a bearing bracket-frame 9 for the support of a shaft portion 10 of the cutter-bit 11, and, as will be observed in the present instance, I employ two of such cutter-bits. It is further to be noted that said bits are mounted to turn or revolve freely in said bracket-hangers, and power is imparted to the same through the medium of the mechanism hereinafter described. At the end of each of the shafts 10 of the bit is secured a vertical miter gearwheel 12, said gears meshing with double miter or bevel gears 13. The bevel-gears 13 are loose upon a relatively short shaft 14, rigidly supported by the lugs 9 of the hanger members 9, while a bracket 15 is secured at 16 to one end of a long driving rod or shaft 17, the bracket 15 being supported by said shaft 14. The shaft 17, which is adapted to revolve as hereinafterdescribed, extends through the bracket 15 and carries at its lower end a hori zontally-disposcd bevel-gear 18, which in turn meshes with both of the double bevel-gears 13 13 and imparting motion to said gears drives the bits 11 11 through the medium of the gears 12 1). at the ends of the shafts 10.

The main driving rod or shaft 17 is also connected with a relatively large lever-frame 19, and at its upper end said rod 17 passes through an aperture in a lug 21, carried by a bracket 22. The upper end of the shaft 17 is also provided with a bevel-gear 23, in mesh with a bevel-gear 24, mounted upon a stubshaft 25, supported in a bracket 22, said gear 1 upper part of the lever-frame 19.

24 being formed rigid with a crank-handle 26,.

through the medium of which motion is imparted to the shaft. In order to support the lever-frame 19 in any suitable position, I providea bracket consisting in the present in stance of a tubular member 27, pivoted, as at 28, to a bracket 29, connected with the lever 19, and an arm 30, designed to telescope or slide within the. tubular member, the arm carrying at its free end a bifurcated claw or foot 31, designed to engage with a joist when the mechanism is in use.

Secured to the claw 31 is a chain or cable 32, designed to be employed'for the purpose of lifting or adjusting the brace without the ne- 1 cessity of the operator stooping to lift the latter, said chain being connected at 33 to the For the purpose of further assisting in the manipulation and actuation of the machine I secure a handle 34 to the upper portion of the leverframe 19, said handle being employed to assist in swinging the lever-frame into any desired position.

From the above description, taken in connection with the drawings, the manner of employing my machine will be readily apparent. The horizontal frame carrying the bit-hangers is placed transversely of the joists to be operated upon, and the lever-frame 19 is then swung backward, which movement throws or imparts a forward thrust to the bits. W'hen the latter come in contact with the joists to be bored, the hook of the supportingbracket is permitted to rest upon an adjacent joist, and the lever-frame 19 is then held in proper position. The crank-handle 26 is then actuated by the operator and a rotary motion is imparted to the bits through the medium of the bevel-gears, the long shaft 17, and the gearing at the'end thereof connected with the shafts of the bits. The hole or boring made with this machine will extend in a direct line transversely through the board or joist, and it is not necessary, as is commonly the case, to bore the hole at an inclination or angle through such joists. After the bits have passed through the wood and the boring is made the lever-frame 19 is swung forward, which movement will remove the bits from the joists and the operation of boring new holes may be proceeded with.

It will be observed that I have provided an exceedingly simple machine and one which possesses many advantages over similar mechanisms of the character now in general use, and While I have herein shown and described one particular embodiment of the invention it will of course be understood that I do not limit myself to all the precise details thereof, as there may be modifications in certain respects without departing from the essential features of the invention or sacrificing any of the advantages thereof.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-- 1. The combination of asupporting-frame, hangers connected thereto, a plurality of bits mounted in said hangers, a transverse shaft carrying gearwheels in mesh with gearwheels on the bit-shafts, a bracket mounted on the ends of said transverse shaft, a drive rod or shaft extending through the bracket and provided with a gear in mesh with the gears on the transverse shaft, and means for imparting a rotary motion to said drive-rod.

2. The combination of a supporting-frame, a plurality of bits supported therefrom, a fixed transverse shaft carrying loosely-mounted gear-wheels in mesh with gear-wheels on the bit-shafts, a bracket supported by the said transverse shaft, a drive-shaft extending through the bracket and having a gear in mesh with the gears on the transverse shaft, and a lever-frame connected with the said bracket and supporting said drive-shaft.

3. The combination of a supporting-frame,

hangers connected to said supporting-frame, a plurality of bits mounted in the hangers, a transverse shaft supported by said hangers and carrying gear-wheels in mesh with gearwheels on the bit-shafts, means for driving said gear-wheels, a bracket mounted on the ends of said transverse shaft, a lever-frame secured at its lower end to the said bracket, and a brace pivotally connected with the leverframe.

4. The combination of a supporting-frame, a plurality of boring-bits supported therefrom, a lever-frame having a bracket at its lower end pivotally connected with the supporting-frame, and means including a revoluble drive-shaft, for imparting a rotary motion to said bits, the said drive-shaft being supported in said lever-frame.

5. The combination of a frame, a plurality of boring-bits suspended therefrom, means for imparting a rotary motion to said bits, said means including a revoluble drivingshaft, a pivoted lever-frame supporting said shaft, a support pivotally connected with said lever-frame, and means connected with said support for lifting the same.

6. The combination of a frame, a plurality of boring-bits revolubly supported from said frame, means for imparting a rotary motion to said bits, and means for imparting a thrust motion to the bits to move the same toward and from the material to be bored, the said means comprising a lever-frame, and a brace for supporting the lever-frame, and a chain or cable connected with the upper part of the lever-frame and secured to the brace for lifting the latter.

7. The combination of a horizontally-arranged frame, a hanger-box suspended therefrom, a boring-bit carried by said hanger-box, means for imparting a rotary motion to said bit. a lever-frame for thrusting the bit toward 1 and from the work to be operated upon, the lever-frame being connected at its lower end with the hanger-box, a tubular socket or sleeve pivoted to said lever, and an arm carrying a claw member slidably connected with said tubular socket, the socket and arm member forming a brace for the frame, substantially as described.

8. The combination of a frame, a bit sup: ported therefrom, a bevel-gear secured to the shaft of the bit, a drive rod or shaft, a second gear carried at the lower end of said driverod, a transverse shaft supported 'on the frame, and carrying a double bevel-gear inter-meshing with the gear of the bit and the gear of the drive-rod, a lever-frame pivoted on said transverse shaft and supporting the said driverod, and means for imparting a revoluble motion to said drive-rod, said means comprising a bevel-gear at the upper end thereof, and an actuating member mounted to turn on the lever-frame and carrying a gear-wheel intermeshing with the last-mentioned bevel-gear, substantially as set forth.

9. The combination of a supporting-frame, hangers suspended therefrom,a bracket-frame carried by the hangers, bits mounted to turn in the bracket-frame, a transverse shaft journaled in lugs on the bracket-frame and provided with gear-wheels in mesh with gearwheels on the ends of the bit-shafts, a bracket 1 supported on the ends of the transverse shaft, a drive-rod extending through said bracket and provided at its end with a gear in mesh with the gears on the transverse shaft, a support for said drive-shaft, and means for imparting a rotary motion to said drive-shaft.

10. The combination of a horizontally-arranged supporting-frame, hangers suspended from said frame, boring-bits carried by said hangers, gear-wheels secured to the shafts of the bits, a transverse shaft journaled in the hangers and carrying gear-wheels in mesh with the gears on the bit-shafts, a bracket supported on the ends of said transverse shaft, a lever-frame connected at its lower end with the said bracket, a rod or shaft supported on the lever-frame and extending at its lower end through the said bracket, the said rod carrying at its lower end a gear-wheel in mesh with the gear-wheels on the said transverse shaft, means for driving the said rod, and a pivoted brace for the lever-frame.

11. The combination of a horizontally-arranged supporting-frame, a plurality of bits supported therefrom, means for imparting a rotary motion to said bits, said means including a relatively long revolving rod or shaft and means for imparting a rotary motion to said shaft, and a lever-frame supporting said shaft and mounted at its lower end to have swinging motion on the said supportingframe.

ln testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FREDERICK CLYDE ZEEK.

\Vitnesses:

\VILLIAM B. \VATsoN, LEWIS J. HICKMAN.