US3217837A

US3217837A - Track guide means for jumbo shaft drills

Info

Publication number: US3217837A
Application number: US208158A
Authority: US
Inventors: Donald F Samhammer; George E Hepola
Original assignee: Chicago Pneumatic Tool Co LLC
Current assignee: Chicago Pneumatic Tool Co LLC
Priority date: 1958-04-07
Filing date: 1962-05-28
Publication date: 1965-11-16
Anticipated expiration: 1982-11-16

Description

N 1965 D. F. SAMHAMMER ETAL 3,

TRACK GUIDE MEANS FOR JUMBO SHAFT DRILLS Original Filed April 7, 1958 3 Sheets-Sheet 1 r /67 m A529 Fig.1.

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1965 D. F. SAMHAMMER ETAL 3, ,837

TRACK GUIDE MEANS FOR JUMBO SHAFT DRILLS Original Filed April 7. 1958 3 Sheets-Sheet 2 Tmi. Z. I /9.0

N v E N TO Rs Dan 44 2 Avian/Momma BY feoeyza'. bz-wmn 16, 1955 b. F. SAMHAMMER ETAL 3, 7

TRACK GUIDE MEANS FOR JUMBO SHAFT DRILLS Original Filed April '7, 1958 3 Sheets-Sheet 5 Z05 INVENTORS Dav/up FJivM/MMMA'R ATTORNEY United States Patent 3,217,837 TRACK GUIDE MEANS FOR JUMBO SHAFT DRILLS Donald F. Samhammer and George E. Hepola, Utica, N.Y., assignors to Chicago Pneumatic Tool Company, Chicago, Ill., a corporation of New Jersey Original application Apr. 7, 1958, Ser. No. 726,927, now Patent No. 3,061,023, dated Oct. 30, 1962. Divided and this application May 28, 1962, Ser. No. 208,158

4 Claims. (Cl. 187-95) This invention is a division of an application bearing Serial No. 726,927, filed April 7, 1958, and now issued as Patent No. 3,061,023. It relates to jumbo size drill apparatus of a type which finds particular use in drilling in rock deep vertical shafts of relatively wide diameter, which carries a number of boom-drill sets for this purpose, and which is adapted to be lifted, lowered or moved about by a hoist. More particularly, this invention is concerned with an improved jumbo size drill apparatus of this nature which has various desirable features and consequent advantages. The apparatus of the present invention is adapted to dig a hole some 22 feet in diameter and 2,000 feet and more, deep. It is adapted to be moved down into the shaft as the shaft deepens.

A feature of the invention lies in the general overall construction of the apparatus whereby a safe and practical structure of this nature is provided.

A general object of this invention is to provide an improved shaft jumbo drill apparatus which reduces the common hazards of such structures to a minimum.

A particular feature of the center column is a cap which seals its top end and is associated with a clevis, whereby in hoisting operations the load of the apparatus and the pull of the hoist is sustained by this cap.

The invention further lies in the general construction of its component parts and also in their cooperative association with one another to effect the results intended herein.

The foregoing and other features, objects and advantages of the invention will appear more fully hereinafter from a consideration of the detailed description which follows, taken together with the accompanying drawings wherein an embodiment of the invention is illustrated. It is to be expressly understood, however, that the drawings are for purposes of illustration and description, and are not to be construed as defining the limits of the invention.

In the drawings:

FIGURE 1 is a view of the shaft jumbo drill apparatus in end elevation as viewed from the left end of FIG. 4.

FIG. 2 is a top plan of the deck.

FIG. 3 is a side elevational view of the deck section.

FIG. 4 is a bottom plan of the deck showing sections at different levels of the association of the mounting assemblies with the deck.

FIG. 5 is a detail section taken on line 55 of FIG. 2.

Reference is now directed to the several drawings wherein there is shown a jumbo size drill apparatus embodying the invention, which finds particular use in drilling into rock deep vertical shafts of substantial diameter. The apparatus includes a main supporting structure 20 having a horizontally disposed platform or deck 21 mounted cen trally atop an elongated vertical center post or column 22. The deck supports at its underside a plurality of pressure fluid operated boom-drill sets 24, here, four in number, one of which is shown in FIG. 1. The supporting structure 20 serves to support various pressure fluid supply devices for supplying operating fluid to the several boomdrill sets. A clevis 26 projecting vertically above the deck from the center of the supporting structure 20 is engageable by a hoist whereby the entire apparatus, together with the various members supported by it, may be lifted, lowered or ported and located where desired.

"ice

Here, the deck 21 is rectangular in form, having a rec tangular floor or upper plate 27 which is fixed to an under-frame and has an anti-skid surface. The underframe has side and end supporting channel members, respectively 29 and 28, and diagonally extending channel members 31. The deck is further strengthened by a pair of spaced end or lower plates 32 fixed to the undersides of the several channel members. The center column 22 is a hollow cylinder sealed over at opposite ends by

plates

33 and 34 fixed thereto. Plate 34 caps the top of the column. It is relatively thick and rectangular in form. It is fixed to the center underside of the floor plate 27. The clevis 26, which is fixed to the top of cap plate 34, projects above the floor plate 27 through a small hole 30 in the latter. The clevis includes a cross pin 36 to which a hoist cable may be anchored. The diagonal channel members 31 are fixed at their inner ends in abutting relation to the outer surface of the center column. Gussets 37 fixed to the diagonal channel members and to the outer surface of the center column further strengthen the association of the latter and the deck to one another.

Referring to FIGS. 1, 2, 3, 4 and 5, cross heads 198 are employed as a means for guiding the entire apparatus as it is entered into or lifted out of a shaft. The cross heads are arranged about the top end of the latter. These include a pair of opposed vertical runners or tracks 199 arranged at the open end of the shaft. The deck 21 supports off the center of each of the longer sides thereof a vertical channel member 200. Each of the latter is adapted to ride over one of the tracks as the apparatus is lifted out of or lowered into the shaft.

Each channel is supported to the deck and held in spaced relation thereto by a pair of gussets 201. Each of the latter is fixed along a vertical outer edge 202 to the spine 203 of the channel. The opposite outer edges of the gussets are each centrally formed with a substantially square notch or cut-out 204 in which the adjacent side of the deck is received. The lower edges 205 of the cutouts underlie and are welded to narrow longitudinal bottom plates 206. The latter are fixed between the end plates 32 to the underside of the frame members 29. The upper edges 207 of the cut-outs of the gussets overlie and are welded to the deck plate 27 Each channel is further made secure to the deck by a lateral extension 208 of the associated bottom plate 206 which fills the area between the gussets. A hole 209 is provided in this extension to permit passage of hose lines or the like, as appears in FIGS. 1 and 4.

While an embodiment of the invention has been illustrated and described in detail, it is to be expressly understood that the invention is not limited thereto, and it is our intent, therefore, to claim the invention not only as shown and described but also in all such forms and modifications thereof as may be reasonably construed to fall within the spirit of the invention and the scope of the appended claims.

What is claimed is:

1. In a jumbo shaft drill apparatus of the character described including a rectangular work platform having work drills depending from its underside and having means at its center for engagement with the cable of a hoist whereby the platform may be lowered and raised in a shaft in which shaft a pair of vertical stationary tracks is disposed in spaced relation to the center of opposite sides of the platform, a pair of elongated vertical guide channel members each slidably engaging a separate one of the tracks, and plate means rigid with opposite sides of the platform rigidly supporting the guide channels in spaced relation to the said sides of the platform, each guide channel having a vertical back wall, the plate means at each of said opposite sides comprising a pair of upright gussets plates each having an outer upright edge fixed in close relation to the other to the rear of the back wall of the related guide channel, the said pair of gusset plates diverging toward the platform away from the said back wall and each having an under edge portion overlying and secured to a marginal surface area of the platform, whereby an enclosure of general triangular configuration is defined upon the platform between the diverging gusset plates, and there being disposed in the enclosure hydraulic supply and return lines associated with the drills.

2. In a jumbo shaft drill apparatus as in claim 11, wherein each guide channel is elongated and extends below as well as above the level of the platform, each gusset plate has a portion depending below the platform corresponding to that portion extending above the platform, and the said under edge portion of each gusset plate is defined by the upper edge of a U-cutout formed centrally of an inner edge of the gusset plate, and the lower edge of said cutout is aflixed to the underside of the platform, whereby an apron is defined below the platform between the depending portions of the gusset plates rearwardly of the related guide channel, lower portions of said supply and return lines being disposed in the apron.

3. In a jumbo shaft drill apparatus as in claim 2, wherein a cutout is provided between the gusset plates immediately to the rear of a related guide channel serving as a passage for drill feed piping from above the platform to the underside of the platform, whereby such piping is confined behind the guide channel between the related gusset plates.

4. In a jumbo shaft drill apparatus of the character described including a rectangular work platform having means at its center for engagement with the cable of a hoist whereby the platform may be lowered and raised in a drill shaft in which is disposed a pair of opposed vertical stationary tracks, means for guiding the hoist for sliding movement up and down the tracks and providing a protective shield for a workman on the platform against his toppling into the shaft over the Sides of the platform, the said means comprising a pair of elongated vertical channels disposed one to each of opposite sides of the platform and in spaced relation thereto, and a pair of upright plates associated with each channel, the plates being secured to and extending upwardly from the surface of the platform in lateral spaced relation to each other and converging toward and having their outer edges secured to the related channel, the space defined between the plates rearwardly of the channel defining a protective enclosure of general triangular configuration for a workman on the platform.

References Cited by the Examiner UNITED STATES PATENTS 744,233 11/1903 Read 187-96 X 927,774 7/ 1909 Dahl 187-96 X 944,113 12/1909 Templer 187-95 983,120 1/1911 Bryant 187-96 X 1,005,837 10/1911 Hofl'er l87-95 1,252,122 1/1918 Jewell 187-96 1,485,302 2/1924 Sharp 187-95 1,539,344 5/1925 Adam 187-2 1,899,751 2/1933 Dunlop 187-95 1,905,248 4/1933 Skaife 187-95 1,931,237 10/1933 OConnell 187-95 2,246,732 6/1941 Hymans 187-1 2,308,210 1/1943 Sahlin 187-95 2,781,140 2/1957 Cryderman 214-657 SAMUEL F. COLEMAN, Primary Examiner.

RALPH H. BRAUNER, Examiner.

Claims

1. IN A JUMBO SHAFT DRILL APPARATUS OF THE CHARACTER DESCRIBED INCLUDING A RECTANGULAR WORK PLATFROM HAVING WORK DRILLS DEPENDING FROM ITS UNDERSIDE AND HAVING MEANS AT ITS CENTER FOR ENGAGEMENT WITH THE CABLE OF A HOIST WHEREBY THE PLATFORM MAY BE LOWERED AND RAISED IN A SHAFT IN WHICH SHAFT A PAIR OF VERTICAL STATIONARY TRACKS IS DISPOSED IN SPACED RELATION TO THE CENTER OF OPPOSITE SIDES OF THE PLATFROM, A PAIR OF ENLONGATED VERTICAL GUIDE CHANNEL MEMBERS EACH SLIDABLY ENGAGING A SEPARATE ONE OF THE TRACKS, AND PLATE MEANS RIGID WITH OPPOSITE SIDES OF THE PLATFROM RIGIDLY SUPPORTING THE GUIDE CHANNELS IN SPACED RELATION TO THE SAID SIDES OF THE PLATFORM, EACH GUIDE CHANNEL HAVING A VERTICAL BACK WALL, THE PLATE MEANS AT EACH OF SAID OPPOSITE SIDES COMPRISING A PAIR OF UPRIGHT GUSSETS PLATES EACH HAVING AN OUTER UPRIGHT EDGE FIXED IN CLOSE RELATION TO THE OTHER TO THE REAR OF THE BACK WALL OF THE RELATED GUIDE CHANNEL, THE SAID PAIR OF GUSSET PLATES DIVERGING TOWARD THE PLATFORM AWAY FROM THE SAID BACK WALL AND EACH HAVING AN UNDER EDGE PORTION OVERLYING AND SECURED TO A MARGINAL SURFACE AREA OF THE PLATFORM, WHEREBY AN ENCLOSURE OF GENERAL TRIANGULAR CONFIGURATION IS DEFINED UPON THE PLATFROM BETWEEN THE DIVERGING GUSSET PLATES, AND THERE BEING DISPOSED IN THE ENCLOSURE HYDRAULIC SUPPLY AND RETURN LINES ASSOCIATED WITH THE DRILLS.