US1684665A - Radial drill - Google Patents

Description

W. W. EDWARDS Sept. 18, 1928.

RADIAL DRILL Filed Jan. 22, 1923 mvsu'ron:

wsuum wenwnnns ATTORNEY Patented Sept. 18, 1928.

UNITED Asiwiias PATENT oFFicE.;

WILLIAM W; EDWARDS; 0F LOS ANGELES, CALIFORNIA.

,RADIAL DRILL.

Application filed. January 22, 1923. Serial No. 614,111.

simple construction and adapted to be ieadvily assembled or dismantled, and in .which the wearing parts may be readily lubricated and be easily removed and ieplaced in event of excessive wear. f

lVth the foregoing objects in view together withsuch other objects as may subsequently appear, my linvention resides in the parts and in the construction, combination and arrangement of parts hereinafter described and claimed and illustrated in the accompanyingdrawings, in which Fig. 1 is a view in horizontal section of the device as seen on the line 1-1 of Fig. 2;.

Figure 2 is a View in section and elevation as seen on the line 2-2 of Figure 1 on a reduced scale. f

Referring to the 4drawings more specifically, 45 indicates a guideway on one side of which is a revoluble drive shaft 48 supported in suitable bearings. A carriage 2O is mounted to slide longitudinally on the guideway 45 and the shaft 48, which carriage and its allied parts constitute an important feature of the machine, and will therefore be now described in detail.

rlhe carriage embodies a back wall portion mounted to slide on. the guideway 45l there being a dovetail sliding engagement between the upper and lower edges of the guidewav 45 and the back wall 60 of the carriage, as indicated at 61 and 62 in Figure 2. Mounted on the front of the back wall portion 60 is a housing embodying a pair of side walls 65 and 66 having inner end faces l and e which abut against the face 0 of the back wall and are secured thereto by suitable fastenings. The side wall portions 65 and 66 are connected together adjacent their lower ends by a transverse wall 7 0 which abuts against the wall c on the back wall member 60, the upper and lower edges of the wall portion 7 extending flush with the upper and lower edges of the back wall 60, as particularly shown in Figure 2. .The adjacent faces of the walls 60 and 70 are formed to receive a bearing 71 through which a vertical revoluble shaft-.72 extends, as will be later described. lhe vlower portions of the side walls 65 and 66 extend adjacent' the horizontal revolublc shaft 48 and are formed to receive a bearing 7 6 through which the shaft 48 extends, as will bel later described.

The bearing 76l includes a pair of bushings l( and 78 which are mounted in recesses 7 9 and 8O in the front end walls of the side walls G5 land G6 which bushings are held in place by a cap plate 81, particularly shown in Figure 2. Turnablein the bushings 7 7 and 78 is a sleeve 82 the ends of which project beyond the outer-ends of the bushings and are exteiiially threaded. The sleeve encompasses the shaft 48 and is splined on the latter by means of a key 88 which slidably extends in a leyway 84'for1ned longitudinally ofthe shaft 48; the key being fastened relative to thesleeve by means of an internally threaded ring 85 which is screwed on the end of the sleeve 82 and engages threads 86 on an in turned end formed on the key 83, asshown in Figure 1. An internally threadediring 85 is screwed on the end of the sleeve 82 and cooperates with the ring 85 inholding the sleeve 82 against longitudinal movement in the bushing. By this construction, rotation of the shaft 48 will effect rotation of the sleeve 82, yet permitmovement of the sleeve longitudinally of the shaft. Formed on the sleeve 82 is a helical gear 87 which meshes with a worm 88 on a sleeve 89 encircling the shaft 7 2; the sleeve being splined on the shaft 72 by a keyr90 slidably mounted in a keyway 91 formed longitudinally of the shaft 72. The sleeve 89 extends through bushings 92 and 93 carried between the walls Y6() and 70 and has externally threaded ends projecting y shaft relative to the sleeve.

When the bushings 82 and 89 are assembled as just described, with the cap 81 extending over the gear 87, the 87 and 88 will be completely housed. within chamber 96,

which chamber is designed to contain suitable lubricant, which, because of the `sleeves extending through the bushings,` `will not contact the shafts 48 and 72, and therefore cannot escape from the lubricant chan'rberv 96 through the keyways 84 and 91. This constitutes the important Vfeature ofmy ilvenz tion.

AWhile I have shown and described the specific embodiment of my invention, I do not limit myself to the exact details of construction and arrangement shown, but may employ such modifications and changes as come within the scope of the appended claims. I claims Y i 1. An enclosed lubricating chamber, a. ro-

tary shaftl mounted for longitudinal movel of thechamber adjacentfthe outer ends ofY are sleeve for inhibit@ t uw longitudinal mdvement of said sleeve fe ative to said chamber, `and a gear Von said sleeve meshed with i the first named gear,

2. An enclosed housing forming a lubri-A cant chamber, a driven shaft extending through said chamber, a sleeve splined on said shaft and extending through the Walls of said chamber, a gear wheel onsaid sleeve, a second'sleeve extending through said chamber, e gear en said` second sleeve meshing with the rst named geur, and a drive shaft extendingthreugh said second sleeve on which said sleeve ie spined, whereby on rotav tion of said drive `shaft said sleeve may be rotated through the virrtermedary of' said gears to eiect rotation of said drivenshait.`

3. In a Amachine of the class described, a

power driven shaft, a1 sleeved `gear Wheel` splhed to saidV power drivenrshafaa shaft disposed at ri ght: angles to said power driven shafta sleeved gear wheel splined to the last named shaft, a chamber enclosing both of said sleeved gear Wheels and provided l" with a pair of bearings for each sleeve of each gear Wheel whereby said chamber and the sleeves of vsaid gears provide a lubricant contaner and whereby said chamber may be shafts. f

:WILLIAM W. EDWARDS;

moved ywith relation to both of'said shafts f 'without `leakage between the chamber and

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