US1833781A - Drill support - Google Patents

Description

Nov. 24, 1931. H. w. FULLER DRILL SUPPORT Filed Feb. 25. 1929 INVENTOR.

lzcznr' I]: flaw BY A Z ATTORNEY WITNESS Patented Nev; 24, 1931 i invention relates to drill supports and more particularly to those for holding a pneug matic drillin position to operate upon rock l 1 hooksor lugs '16 adaptedutooverl eand ene j and coal, etc.

iAn object ofthe invention is to provide a 5 support whichli's adjustable vertically and about a verticaljaxisso thatfthe drill canbev. readily adjusted to predetermined positions Ifforuse, I i

v A further object ofthe invention is to provide adrill support embodying afixed stand ard to be supported from the ground and'a vertically adjustable support upon whichthef I I r the rack bar to ad ust thehead and saddle drill is removably held.

. advantages in mind theinvention consistsin the novel combination ofelements, construc tlons and arrangements of parts and opera! --tions to be hereinafter specificallyre'ferred to,

drawings wherein: r

' Figure 1 is a perspect ve of invention in operative position to support a pneumatic I drill in position for use;. r I Fig. 2 is a'view partly in elevation and partly in vertical section of the device;

F ig.'3 is a fragmentary end elevation of the same; and

Fig. 4 is a horizontal section taken online 4-4 of Fig. 2.

l'a'r rectangular standard or housing 5 having .a tapered lower end 6 to be driven into the ard 5 and is mounted upon a rack bar 11; ver:

tically adjustable inythe standard 51 The 1 1 underface ofthe saddle 10'is formed witha"f I I .7 v

' about a vertical' axisf s ems the drill m'ay operate 3 at :desired' points; ,Moreover the I depending ear 13' which is received between upstanding ears13a formed upon the upper I I end of the rackbar. A-bolt 14 passes through 1 the ears 13 and 13a upon which a'nut 14a'is drill in a horizontalposition, as disclosed in Fig. 1, the saddle is provided with pairs of posite sideof the saddle areequippedwi'th I set screws 17 which ars adjustable trans; L versely through the, upper ends of saidiar'mjs 1 land are. also .rengageable fwith parts: of the With thepreceding and other objects, and j j I z betweenparallel ears191 formed on the upper claimed and illustrated in the accompanying n I I t V v c nkhandle 22 lSfiXGd to one-" d 10 h q provided, on the standard opposite the ears '19, The J upper end of -the I I I through an opening 25" in thestandard-to Referring to theinvention in detail a tubu-r bar longitudinally adj strI d T erd dr ll" saddl rockably mouI-nted III-prion Im upstanding transversely aligned 'lhe arms atone side of the saddle are formedf I 1 with inwardly directed laterally extending gage parts of the drill, aTlhearmsatltheop' 55M I W drill." Thus with the fIlQOk fIG-andithe set 1 will be effectively held onthe'shelfr I I i,

For the purposeflof raisingand lowering screws 17 engagedwithLthe drill thejlattei g Q L M shaft for the purpose of rotating the inion.-

- In orderto' retain the-radk-bariila justed' l position apawl 23isfpivoted to. swingYabout I a horizontaliaxis?betweennparallel earsfllffigj J pawl, passes engage longitudinally alignedflrat'chetteeth 25a formed on the adjacent face of the rack 1 bar. Anexpansible coilspring'26 is -inter- V posed between the pawland standard't'o nor- '5 mallyurgethe former into engagementwith ;If 1 the ratchette'eth. ,It wiuphegei'ere-te seen 1 L thatfwhen-v the rack bar is raised'thepawlf will lengagefthe' ratchet teethlto prevent de -f g scent of-the .raok -"bar upon lrelease foffthe. f

I I my inventionit will saddle or shelfmaybeadjustedlverticallypr drilliwill be heldesecurely against longitudi m1 shifting i in the saddle by reason ot-the a lugs 16 and set screwl'iacting to clampthe- -ggef i l drill to the saddle h c a med In a drill support, ajhollowstandard," .a' V;

. set screws adjustable t6 enga e tfii d u r fihepp rbn i s idsaid s d lea n v s ranielongated'base member, pairs of upstandt f. -Ving" arms fdrmedat the extremities of said; base, thea ms upon "oneside-of'said base havil'lg laterally extending lugs for engaging h *one side of a drill, and the a rms 'upon the oppositesidjof jid-base-zmeinhei'ehaving the side opposite saidlugsQ Signed at fi 35 31 IJEIV J ,andStateof Arizone,'thi ggth da Jamhvv I

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