US1068324A - Compound table for drill-presses. - Google Patents

Description

L. H. COLBURN.

GDMPOUND TABLE FOR DRILL PRESSES.

APPLIOATION FILED JAN. 29, 1912 Patented July 22, 1913.

imme/whom LESLIE H. COL. BURN L. H. COLBURN.

COMPOUND TABLE FOR DRILL PRESSES.

APPLICATION FILED JAN. 29, 1912.

1,068,32. Patented July 22, 1913.

3 SHEETS-SHBET 2.

COLUMBIA PLANOCHMPH 00.. WASHINGTON. n. c.

L. H. GOLBURN.

COMPOUND TABLE FOR DRILL PEESSES.

APPLICATION FILED 111]].29, 1912.

3 BHEETB-SHEET 3.

Patented July 22, 1913.

INVENTOR LESLIE H. COLBURN STATES PATEN 1 nines.

l'JESLIE I-l'. COLEURN, OF FRANKLIN, PENNSYLVANIA, ASSIG-NOR TO COLBURN MACHINE TOOL COMPANY, OF FRANKLIN, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

COMPOUND TABLE FOR DRILL-PRESSES.

llllllt lfiitda Specification of Letters Patent.

Patented July 22, 1913.

To all whom it may concern:

Be it known that l, LESLIE l-l. CoLnUnN, citizen of the United States, residing at Franklin, in the county of Venango and State of Peiinsylvania, have invented certain new and useful Improvements in Compound Tables for Drill-Presses, of which the following is a specification.

The object, construction, operation and advantages of my invention are herein set forth. with sut'ficient clearness to enable those skilled in the art to which it ap 'iertains, to make and use the same.

The object of my invention is to provide a compound table for drill presses, and more especially an adjusting means for same, whereby the two movements of the tablewhich are relatively transverse to each other, -may be independently but simultaneously accomplished by the operator from one position at the front of the table.

A compound table for a drill-press is not novel, neither is the matter of the adjustability of such table in two directions, but so far as I am aware, no adjusting means has been provided whereby the operator may, from one position, and simultaneously but independently, adjust such table in the two directions,that is laterally, also forward or backward, and it is such a construction that l have invented and seek to secure by Letters Patent. 1 am aware however, that in certain types of machine tools employing compound tables, the adjusting mechanisms for the various movements of the table have been connected by gearing, so that the actuation of said adjusting mechanisms simultaneously accomplished by means of one crank or hand wheel, but such tuljustment lacks the independent feature which characterizes my construction.

The construction whereby l attain said,

object is clearly set forth in the drawings, the various figures of which are as follows Figure 1 is a plan view 01' a compound table embodying my invention; Fig. 2 is a front elevation of same; Fig. 3 is a side elevation thereof; Fig. 4iis a plan view of the saddle; Fig. is a front view of the saddle; Fig. (3 is one of the pinions used for adjusting the saddle and table. Fig. 7 is a side elevation of a drill-press equipped with my improved compound table.

The construction here shown is substan tially as follows:-Upon any suitable sup port, as l, which is located beneath the spindle of the drill-press, is mounted a sad dle 2 arranged in any suitable way, to have a forward and backward movement or ad justment upon said support 1.. Upon said saddle is mounted a table 3, arranged in any suitable way, to have a lateral movement or adjustment, which movement is in a fixed line transverse to the movement of saddle 2. In proximity to each outer corner of said saddle, is formed apocket l, 5, for the reception of a spiral pinion G, 7,---see Fig. 6. Upon the upper face of support 1, and positioned beneath pinion G, is rigidly attached a rack 8, with which pinion (S meshes. Upon the lower face of table 3, and positioned above pinion 7, is rigidly secured a rack 9, with which pinion 7 meshes. The longitudinal dimensions of said racks extend in, a fixed line at a right angle to each other. Pinions 6 and 7 are each rigidly attached to a shaft 10, for the reception of which, suitable bearings 11 and 12 are formed integrally with the saddle 2. Said bearings 11 and 19 extend obliquely outward from the outer corners 01' said saddle, and the outer end of each shaft 10 suitably formed for the reception of a manipulating means, such as capstan wheels 13 and 14:. From an inspection of Figs. 1 and 2, it will be noted that said wheels 18 and 1st are positioned in close proximity to each other and. are with in easy reach of the operator, so that one wheel may be operated with one hand, and the other wheel with the other hand, simultaneously but independently. It will also be further noted especially by an additional inspection of Figs. at and 5, that said adjusting wheels 13 and 1d always maintain their relative position, regardless oi the adjustments made: whereas, with all other (leviccs of this class the adjusting devices more with their respective elements, and. their relative position changes accm'diugly.

When it is desired to adjust the saddle 2, wheel 13 turned, which, causes pinion (5 to revolve and to travel upon rack 8, either outwardly or inwardly, as desired, and this causes a corresponding movement of said saddle and the superimposed table 2-3. When it is desired to adjust the table 3 laterally, wheel Ll is turned, which causes pinion '7 to revolve and to move rack 9 and table 3, either to the right or left, as desired, and as above stated, wheels 13 and let may be simultaneously turned and both adjustments, as above set forth, be simultaneously accomplished: on the other hand, with all other forms of adjusting devices, except as above stated while it is possible at some positions of the adjusted elements, to reach both of the adjusting devices and adjust their respective members or elements simultaneously, at other positions thereof, it is not possible to do this, owing to the fact that said devices move with their said respective elements, and are so far apart that they can not both be reached at the same time for simultaneous manipulation. It will thus be readily understood that, by the use of my improved adjusting device, much economy of time and labor may be secured.

The pinion 6, which moves the saddle, is a left-hand spiral, and pinion 7, which moves table 3, is a right-hand spiral.

A shield 15 for the rack S is'formed upon the apron 2, to protect said rack from the chips and borings from the drill.

As a usual thing, the knee or bracket 1 of a drill-press is vertically movable, so that work of varying thicknesses may pass beneath the drill or other tool that issecured in the lower end of the spindle 16, but so far as the application of my invention is concerned, this may or may not be the case.

I claim 1. In a compound table for drill presses the combination of a suitable base adapted to be positioned beneath the spindle of such press, an element consisting of a saddle adjustably mounted upon said base, a second element consisting of a table adjustably mounted upon said saddle, an intermeshing pinion and rack arranged for adjusting said saddle, an additional intermeshing pinion and rack arranged for adjusting said table,

both of said pinions being carried by one of said elements, whereby their relative positions remain unchanged when adjustments are made, and means for revolving said pmions.

2. In a compound table for drill-presses, the combination with a bracket attached to and vertically adjustable upon the column of a drill-press, of a horizontally-adjustable saddle mounted upon said bracket, a table mounted upon said saddle and adjustable thereon, in a line transverse to the line of adjustability of said saddle, a rack attached to the upper face of said support extending parallel to the line of adjustability of said saddle, a shaft revolubly mounted in said saddle, with its axis positioned obliquely to the line of adjustability of said saddle and its outer end extending frontwardly, a pinion keyed to the inner end of said shaft, meshing with said rack for the purpose set forth, a rack attached to the lower face of said table and extending parallel to the line of adjustability thereof, a second shaft revolubly mounted in said saddle, with its axis positioned at substantially a right angle to said first-mentioned shaft and its outer end also extending frontwardly, a pinion keyed to said last-mentioned shaft, meshing with said table-rack for the purpose set forth, and means arranged so to be accessible to the operator from one position for revolving said shafts simultaneously or independently.

3. In a compound table for drill presses the combination of a suitable base adapted to be positioned beneath the spindle of such press, an element consisting of a horizontally-adjustable saddle mounted upon said base, a second element consisting of a horizontally-adjustable table mounted upon said saddle, an intermeshing pinion and rack arranged for adjusting said saddle, an additional intermeshing pinion and rack arranged for adjusting said table, both of said pinions being carried by one of said elements, a shaft, upon which each of said pinions is mounted for the purpose of revolving same, said shafts being provided with bearings in said pinioncarrying element, and means for revolving said shafts.

4. In a compound table for drill-presses, the combination with a bracket. attached to and vertically adjustable upon the column of such press, of a horizontally-adjustable saddle mounted upon said bracket, a table mounted upon said saddle and horizontally adjustable thereon in a fixed line transverse to the line of adjustability of said saddle, a rack attached to the upper face of said support extending parallel to the line of adjustability of said saddle, a shaft revolubly mounted in said saddle with its axis positioned obliquely to the line of adjustability and its outer end extending frontwardly, a pinion rigidly affixed to the inner end of said shaft arranged to mesh with said rack for the purpose set forth, a rack attached to the lower face of said table and extend ing in a line parallel to the line of adjustability thereof and at a right angle to said first-mentioned rack, a second shaft revolubly mounted in said saddle and extending diagonally outwardly with its axis posi tioned at substantially a right angle to said first mentioned shaft, a pinion keyed to the inner end of said last-mentioned shaft arranged to mesh with said table-rack for the purpose set forth, and means arranged torevolve said shafts simultaneously and independently.

5. In a compound table for drill presses, the combination of a suitable base positioned beneath the spindle of such press, a saddle mounted upon said base and horizontally adjustable thereon, a table mounted upon said saddle and horizontally adjustable thereon, an interlneshing pinion and rack arranged to adjust said saddle, an internieshing pinion and rack arranged to adjust said table, both of said pinions being mounted Within said saddle, and movable therewith in a fixed relative position, a shaft aflixed to each of said pinions for the purpose of revolving same, and provided with 10 hearings in said saddle, each of said shafts extending diagonally outward from said saddle, and means tor revolving sald shal'ts, lor the purpose speelfied.

In testimony whereof I a'l'hx my signature in presence of two wltnesses.

LESLIE H. COLBURN.

it-messes WM. 13. GRIFFEN, W. E. Bannow.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latentsi Washington, I). U.

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