US1735478A

US1735478A - Drill-press table

Info

Publication number: US1735478A
Application number: US190216A
Authority: US
Inventors: Robert E Stubbs
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-05-10
Filing date: 1927-05-10
Publication date: 1929-11-12
Anticipated expiration: 1946-11-12

Description

Nov. 12, 1929. sTUBBS 1,735,478

DRILL PRESS TABLE Filed May 10. 1927 3 Sheets-Sheet l Attorney Nov. 12, 1929. sT s 1,735,478

DRILL PRESS TABLE Filed May 10, 192'? 3 Sheets-Sheet 3 Nov. 12, 1929. R. E. s'ruBBs 1,735,473

DRILL PRESS TABLE Filed Mayl0, 192'? 3 Sheets-Sheet 3 Inventor wmzrz uzzy By Attomg Patented Nov. 12, 1929 UNITED STATES ROBERT E. STUIBBS, OF DULUTH, MINNESOTA DRILL-PRESS TABLE Application filed May 10, 1927. Serial No. 190,216.

The present invention relates to improvements in drill press tables and has for 1ts principal object to provide a Worl; support which is capable of various ad ustments whereby the work can be properly supported on the table while undergoing a drilling operation.

One of the important objects of the present invention is to provide a drill press table wherein the same includes a table top which com rises a pair of complementary sections capaible of being adjusted to provide a vice, the table top being arranged on a head for rotation thereon, said head belng further adapted for vertical swinging movement in order to tilt the table top to any desired angle.

A further object is to provide a drill press table of the above-mentioned character which is simple in construction, inexpensive, and furthermore adapted to the purposes for which the same is designed.

Other objects and advantages of this 1nviention will become apparent during the course of the following description.

In the accompanying drawing forming part of this specification and in which like numerals are employed to designate like parts throughout the same:

Figure 1 is a side elevat10n of the drill press table embodying my invention.

Figure 2 is a similar view taken at rlght angles thereto.

Figure 3 is a vertical sectlonal view taken substantially on the line 33 of Flgure 2.

Figure 4 is a top plan view of the table Figure 5 is a detail perspective view of the head member.

Figure 6 is a fragmentary perspectwe v1ew of the upper end of the pedestal, showmg the saddle and bearings.

Figure 7 is a sectional view taken approxlmately on the line 77 of F gure 3.

Figure 8 is a perspective view of the table top, and

Figure 9 is a similar v1ew of the circular disc;

In the drawings when for the purpose of illustration is shown the preferred embodiment of my invention, the numeral 1 deslgtheir inner oppose nates generally the stationar base, the same comprising a pair of para lel spaced bars 2 and 3' respectively, which are interconnected at their intermediate portion by the cross bar 4. These parallel spaced bars are formed with longitudinall extending grooves in faces as illustrated at 5 and 6 to provide guide means for receiving the longitudinal side edge portions of the auxiliary base or platform 7 which is slidable on the main base 1.

A depending lug 8 is formed on the bottom of this slidable platform 7 adjacent one end thereof and this lug is formed with a vertical slot which extends upwardly thereof in the manner as is more clearly disclosed in Fig. 3. An elongated threaded rod 9 is threaded through a threaded bore 10 formed in the central portion of the cross bar 4 which bridges the spaced

side bars

2 and 3 of the main base 1 and the outer end of this rod extends through the lug 8 which depends from one end of the platform 7 and secured on the outer end of this rod is an actuating handle 11. A collar 12 isdisposed within the slot formed within the depending lug 8 and this collar is secured on the portion of v the rod 9 which extends through the slot.

This construction provides a means whereby a the platform 7 may be moved longitudinally along the main base 1 when the handle or crank 11 is actuated.

Extending upwardly from this auxiliary baseor platform 7 is the substantially rectangular hollow pedestal or standard 13 and the upper end of this pedestal is cut away at one pair of opposed sides and formed on the opposite pair of opposed sides are the bearings 14. The purpose of these bearings 14 will be hereinafter more fully described.

Extending laterally from the edges of the sides of the rectangular shaped pedestal in which the ears 14 are formed are the platelike projections 15, the upper edges of these plate-like projections being connected together as at 16 and this construction provides what I term as a saddle, the same being designated generally by the numeral 17.

The present invention further includes the provision of a block-shaped head 18 which is disposed between the bearing carrying sides of the pedestal 13 at the upper end thereof and this the laterally

ro'ecting arms

19 and 20, the upper faces 0 which he flush with the upper face of the .head in the manner as is more clearly disclosed in Figure 3 of the drawin s.

A pair of .trunnions 21 are secured on t 1eopposite sides of the head' 18 b any appropriate fastening means and tiese t2!!- nions are disposed within the respective bearings 14 whereby said head is adapted for vertical swinging movement in the head and throng u per end portion of the pedestal or standard 13. Suitable plates 22 are disposed on the securing bolts 23 associated with the head 18 and the trunnions 21 and these plates engage the outer faces of the bearings in the manner clearly illustrated in Figure 2.

The manner in which the head member 18 and the laterally extending arms 19 and 20' carried thereby are actuated for disposing the head in various tilted positions will be presently described.

An enlarged circular disc 24 is disposed on top of the head '18 and its laterally projecting

arms

19 and 20 respectively, and this disc is further adapted for rotation on said head member through the medium of the bolts 25 which extend centrally through the h the disc as shown in Figure 3. This disc 1s formed with an annular groove in its outer peripheral edge as indicated at 26 and cooperating therewith is the inner end of the threaded bolt 27 which is threaded through an upstandingear 28 guide strips 31 secured on the bottom faces of the

complementary sections

32 and 33 of the table top 34. This table top is also vcircular in design and the complementary sections are substantially semi-circular. Each of the complementary sections of the table top is formed with a series of elongated inverted T-shaped slots 35 as is clearly-shown in Figures 1 and 3 of the drawings and the same provides a means for receiving the heads of bolts to which the work which is to be supported on the drillpress table is secured inthe manner well known in the art and when the .heads of the bolts are disposed within certain of these inverted T-shaped slots the work will be properly supported on the table The

complementary sections

32 and 33 of the circular table top 34 in addition to proead member is formed with viding a table top when closed, further cooperate to rovide a vise, the inner op sed edges of t e semi-circular sections adapted to gri and secure the work and for the purpose 0 actuating the complementary sectlons so that the same may be moved away or toward each other, I have provided a pair of threaded rods 36 and 37' respectively. These rods are threaded in right and left hand directions respectively and thesame are threaded through suitable threaded of the-circular disc 24 in the manner as is clearly illustrated in Figures 2 and 3 of the A depending lug 39"is formed on the botdrawings.

lugs 38 provided therefor on the upper face semi-circular section 33 of the circular table top 34 adjacent its outer edge and the unthreaded outer end of the threaded rod 37 extends through this lug. Each of the last mentioned lugs are formed with a vertical slotto accommodate the collar 41 which is secured on the respective threaded rod and it is readily obvious that when the outer ends of the threaded

rods

36 and 37 are rotated in one direction, 32 and 33 will be moved-inwardly or outwardly depending upon the direction in which the rods are turned so that the inner opposed edges of the complementary sections may be moved inwardly toward each other or outwardly away from one another to rovide a vise. The circular table top 34 w ich includes the semi-circular

complementary sections

32 and 33 will 'swin with the head member 18 as a unit during t e tilting of the tabletop in the manner. which will now be specifically described and furthermore the circular table top will also beadapted to rotate simultaneously with thelrotation of the circular disc 24 when the locking bolt 27 is disengaged from the grooved peripheral ed e of the disc.

idapted for vertical reciprocatory movement within the hollow pedestal or standard 13 is the block 42.- This block is formed in the complementary sections I one pair of opposed sides with vertical grooves for cooperation with the vertically extending ribs 43 provided on the adjacent sides of the hollow pedestal whereby the block will be guided during its vertical sliding movement within the pedestal.

The slidable block 42'is operatively connected to the head member 18 through the medium of the link 44 which is pivotally-secured at its upper end to a dependin gear 45 formed on the bottom of the latera 1 extendingarm 20 adjacent the head 18 as illustrated at 46. The lower end of this link is pivotally connected to an upstanding gear 47 formed on the upper face of the block 42 and the ivotalconnection between the lower end of the link and this gear is shown at 48.

The means for ralsing and lowering the block 42 comprises a In 49 which pro ects from one side of the bloc 42 through the ad- 'jacent side of the rectangular shaped side of the edestal 13, said side of the pedestal being rmed with the cut-out portion 50 to accommodate this lug in the manner as clearly illustrated in Figure 1. This lug is formed with a vertical threaded bore through which extends the threaded shaft 51. The lower end of this shaft is supported in any appropriate manner on the auxiliary base or platform 7 and secured on the upper end of this shaft is a bevel gear 52 which meshes with a bevel gear 53 secured on a stub shaft 54 which is supported on the upper portion of the pedestal 13 by the supporting bracket 55. A suitable crank 56 is secured on the outer end of this stub shaft 54 for actuating the same. Manifestly by rotating the shaft 51 in one direction, the threaded lug 49 will move upwardly on the shaft and simultaneously will cause the block 42 to slide upwardly in the hollow pedestal and during this upward movement, the link 44 will move upwardly, causing the verticall swinging head member 18 to be raised and wii bridge portion 16 of the saddle 17, the head member and the circular table top carried thereby will be lifted in its upward swinging movement so that said table top will be disposed in a substantially horizontal position.

Obviously by rotating shaft 51 in the reverse direction, the block 42 will move downwardly in the hollow pedestal 13 and the link 44 will in turn causethe head member 18 to swing on its pivot so that the table top 34 will be tilted to any angular posit-ion and for the purpose of securing the table top in any predetermined tilted position, I provide a slotted arm 57 which is pivotally secured at its upper end to the outer end portion of the laterally projecting arm 20 associated with the pivoted head 18 and cooperating with the lower free end of this slotted arm is the bolt 58 whi sh extends through the adjacent side of the pedestal and this bolt and slotted arm is clearly disclosed in Figure 3. A thumb nut 59 is threaded on the outer threaded end of the bolt 58 for tightening the same so that the slotted arm cannot move downwardly and this will provide a positive and eflicient means for securing the head member 18 and the table top carried thereby in any predetermined tilted position.

It will thus be seen from the foregoing description, that I have provided a drill press table which is capable of being adjusted to various positions so that the work can be properly supported in any desired angle or place with respect to the drilling implement.

en the arm 19 strikes the Furthermore the simplicity in which my device is constructed enables the parts to be readily and easily adjusted and a device of this character will at all times be strong and durable.

While I have shown the preferred embodiment of my invention, it is to be understood that various changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit or seenficing any of the advantages of the appended claim.

What I claim is:

In a drill press table, a base, a pedestal extending upwardly therefrom, a pair of ver-' t1cally disposed and spaced plates, an-otfset at the upper end of the said plates, the cross member connecting said plates atthe extremities of said offset, a slide block between said plates, means for 1 noving said blocks vertically, an elongated block, an arm pivoted at one end to one of the vertical plates, and at its opposite end to one end of said elongated block, the opposite ends of said elongated plates being adapted to rest upon said cross member when disposed in horizontal plane, a pivotal link connection between said elongated block and saidslide block, and a table top for disposition upon said elongated block.

In testimony whereof I aflix my signature.

ROBERT E. STUBBS.