US1597144A

US1597144A - Rcller cutter

Info

Publication number: US1597144A
Application number: US757708A
Authority: US
Inventors: Oscar M Carter
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-12-23
Filing date: 1924-12-23
Publication date: 1926-08-24
Anticipated expiration: 1943-08-24

Description

Aug. 24 1926.

O. M. CARTER ROLLER CUTTER Filed Dec. 25, 1924 4 M .L R 3 m I... w L B 0 n z w w J 1 titl .hpptteetion med December This invention relates to an improvement in roller cutters especially designed. for use on rotary drills. a

The object of the invention is the prov sion. of a device of this character Which is especially designed for use when i'oclc packed send or other hard substances are encountered the drill and cutter constituting the present invention being designed and adapted to sink the hole more rapidly through such formations than other cutters heretofore proposed.

(lthei' ohjeots and advantages reside in certain novel. teetures of the construction, arrangement end combination of poets which will he hereinafter more fully SClibGd and phnticulsrly pointed out in the appended oleiins reference losing had to eccoinpenying; drawings forming; a pot" this specific "on, end in Which- Figure l is s View psitty in elevation v in sec -oli showing one embodies oi invent i Figure 2 is fragmentary View With pen tic? the cutter holder in section to it lest he the mounting of the cutters,

an 3 I ts employed the foreword end rsngement o snhstent.

is provided 3, tieties of i. met" cs orally at 5 one poet of the li -shaped recess tees designnted couch l. The 1"lii@tt5 5 operate in pert in openings 6 in the themes on hollders 8, hot n oyec" 1!. sin

said openings 6 into recess the drawings; The cntt ere notetehty mounted on s hee'tings 8 once 21 on the no 3. The snitehty m at e shown in no series 59' I cet ied in detail View ei'emtion 5'13, lgfit. serial Ito, $757,703.

sition es by means of pins 9. The roller cutters 5. take the form of disks heving teeth 5 on their periphery. l Vith the arrangement shown, a, plurality of roller cutters 5 are provided along each edge of the recess so that in operation the roller cut-- tors 5 opproxii'nately define a ll-shaped recess. The holders or frames 3 are formed With depending or forwardly extending extensions 10 in Which short shafts 11 are fixed h nieans'of pins 12. @n the inner ends of the shafts 11 conical roller cutters 13 are rotatably mounted and on the outer ends of these shstts 11 disk-shaped roller cutters 14 are rotetshiy mounted. The eoniced shaped roller eutters 13 are constrained to rots on the shafts 11 by the portions 3 of the holders or tonnes 3, end the dish shaped cutters 14; me similarly constrained by means of heads 15 provided on the sh L Ill. The hoiders or frames 3 so designed that the cutters end theme ere spaced. at e diiieient 3P1 the e is of rotation then the cutters l3 n i e other side By vittne out this spocin cutters 13 and l t.

other side,

The

ectivenws t henced hy the sets its";

'l c the d mation forcibly to shatter and crush the same. It is by virtue of these features that the present cutter is able to sink a hole much more rapidly than other cutters heretofore proposed through rock, packed sand or other hard substance.

I claim 1. In a drill of the character described, a pair of inclined frames defining a \fshaped recess between them, and roller cut ters mounted on the frames and operating along the edges of said V-shaped recesses.

2. In a drill of the character described, a cutter having roller cutters at its forward end provided With long and short teeth, the long teeth being designed. to raise the drill and permit the same to fall to cause the cutter to exert a shattering action on the formation.

3. In a rotary drill, a cutter having roller cutters at its forward end, and having rneans periodically raising the drill and permemes mitting the same to fall so that the cutters exert a shattering action on the formation.

4. In a drill, a cutter including a pair of diverging frames defining a V-shaped recess, a series of roller cutters arranged along the edges of the recess, said frames having extensions, shafts mounted on the extensions, conical cutters arranged on the inner ends of the shafts, and roller cutters arranged on the outer ends of the shafts,

5. In a drill, a cutter including apair of diverging frames defininga V-shaped recess,

a series of roller cutters arranged along the edges of the recess, said frameshaving ex-- tensions, shafts mounted onthe extensions, conical cutters arranged on the inner ends of the shafts, roller cutters arranged on the outer ends of the shafts, and reaming cutters rotatably mounted on the sides of said frames.

oscan M. eanrnn.