US1330053A

US1330053A - Spiral tool-driver

Info

Publication number: US1330053A
Application number: US240189A
Authority: US
Inventors: Booth Frederick
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-06-15
Filing date: 1918-06-15
Publication date: 1920-02-10
Anticipated expiration: 1937-02-10

Description

' F. BOOTH.

SPIRAL TOOL DRIVER.

APPLICATION FILED JUNE 1a. [918- 1,330,053. Patented Feb. 10, 1920.

3 SHEETS-SHEET I F. BOOTH.

' SPIRAL TOOL- DRIVER.

APPLICATION FILED JUNE 15, I918.

3 SHEETS-SHEET 2- Qwwwtoc Patnted Feb. 10,1920.

I Patented Feb. 10,1920.

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FREDERICK BOOTH; OF LABORTE,INDI ANA.

SPIRAL TOOL-DRIVER.

T0 all whom it may concern:

Be it known that I, FREDERICK Bfoorn, a

V citizen of the United Stat-es residing at Laporte county of Laporte and State of Indiana, have invented certain new and use:-

ful Improvements in Spiral Tool Drivers, otwhich the following 1s a spec fication.

Thls invention relates to tool drivers of the class in which a chuck carried on the. end

ofa spindle and adapted" to receive tool bits is rotated by the reciprocation of the handle in which the spindle is carried-,. and more the kind shown inmy prior particularly to United States Patent No; 1,183,426 of 16,1916, in which a suitable gear wheel is" secured to the spindle. and i'srotated through engagement with a stationary rack within the handle portion of the tool. In devices as disclosed in my prior patentthe spindle may be rotated in but a single direction, but in my present invention provide a novel ratclietsneans by which the direction of rotation may be reversed or the spindle may be held again-st rotation in either di rec-tion; a

A further object of the invention" is to provide means for chan'ging thedirection of rotation of the spindleirrespective of the relativepositionof the spindle inthehandle.

A further object of the invention is to provide a tool of this kind which may be locked at will in extended or retractedposition and be -used as a ratchet or rigid toolf, whereby the use of the tool under diiferent conditions maybe more convenient.

H'eretofore in toolsof this kind wherethe direction of rotation of the spindle-maybe varied it has ordinarily been necessary to provide the spindle with oppositely inclined threads or grooves collars or sleevesin the tool handle relatively st'at'ionary thereto and having means for engaging the grooves to impart I motion to the-spindle; Such tools are provided with a suitable pawl or'pawls'for'locking'one of the collars to thereby effect rotation of the spindle in the: desired direction; Expert ence 1n connection; with the use of devices asshown in my prior U. S. patent" above" referred to-has shown that the eflicien'cy. of the tool is increased wherezu stationary rackis-- secured in-the-tool handle and 'the gears for rotating the spindle are mounted on the spindle and reciprocate with the spindle relatively to the=handle.

Specification-1 of'Letterss Patent.

and to provide rotatable Patented Feb. to, 1920;

Application filed June 15, 1918. Serial No. 240,189.

According to my present inventionytherefore', I' provide a suitable tubular handle portion of desired length in which is fastened a rackhaving oppositely inclined teeth therein. Guided in a bearing at one end of the tubular handle and having its inner end provided with a suitable bearing adapted to engage the inner walls of the tube is a spindle, the outer projecting portion of which is provided wlth a chuck for receiv-,

ing suitable tool bits, as screw drivers and drills; Near the inner end of the spindle and rotatably mounted thereon are two gear wheels" adapted to engage the oppositely inclined teeth of the rack whereby they are rotated upon the reciprocation of the rack. A suitable clutch member is provided whereby the motion of either one of the gears may be imparted to the spindle or whereby both may be held immovable relatively to the spindle at the same time to prevent the spindle from being rotated within the handle. Suitable means extending substantially the length ofthe tubular handle is provided for operating the clutch mechanism irrespective 'the'tool spindle may be locked in either extreme-position and still be used as a ratchet tool.

Referringnow to the accompanying drawingsz- Figure 1 shows an elevation of my tool. Fig: 2 shows a longitudinal section of the tool.

Fig. '3 shows a transverse section on line 3-3 01? Fig. 2*. I

Fi t shows a transverse section on line 44 of Fig. 2.

Fig 5' shows a transverse section on line 5-5 01? Fig. 2;

Fig; 6 shows a transverse section on line 66-ofllig. 2.

Fig; 7 shows a transverse section on line 7-70f Fig; 2.

Fig; 8 shows a transverse section correspendin to Fig. 7 but showing the shifting mec anism moved to inoperative position.

Fig. 9 shows a transverse section on line 99 of Fig. 2.

Fig. 10 shows a transverse section on line 1010 of Fig. 2.

Fig. 11 shows a transverse section on line 11-11 of Fig. '2.

Fig. 12 shows a transverse section on line 12 12 of Fig. 2.

Fig. 13 shows an inverted perspective view of the slide for effecting the movement of the clutch mechanism.

Fig. 14 shows in detail one of the gear wheels and the ratchet by means of which motion is imparted to the spindle.

Fig. 15 shows a perspective view of the tubular handle.

ing secured therein a metallic casing coma prismg a tubular portion 2 adapted to carry Fig. 16 represents in perspective a portion of a bar extending substantially the length of the tubular handle for effecting the movement of the shifting mechanism.

Fig. 17 represents a transverse section therethrough. Fig. 18 represents a portion of the casing. Fig. 19 shows on an enlarged scale part of. the shifting mechanism.

Fig. 20 shows in detail the slide for moving the locking mechanism.

Fig. 21' shows a spring employed in the locking mechanism while Fig. 22 represents the locking plate.

Fig. 23 shows a detail view of an oil. pad. Fig.'24 represents an end view of a washer in the casin Referring now more particularly to the accompanying drawings I have shown a handle 1, which may be of any desired construction, but preferably of wood, andhavthe tool actuating mechanism. Adapted to work in the handle and casing is-a spindle V 4 carrying a tool holding chuck 5 of any suitable construction on its outer end. The

spindle is of substantially the same diameter throughout the greater portion of its length and is supported in the outer end of the tube 2 by a cap 6 in which is a ball bearing 7. Separated from the ball bearing 7'by a plate 8 is a felt oil and dust collecting pad 9. The cap 6 is preferably provided with a washer 10 having an opening 10 having a resilient closingflap 11 preferably formed integrally therewith, whereby the snout of an oil can may project therethrough. Secured within the casing 2 is a rack 12' having oppositely inclined teeth or spiral-threads.

V The inner end of the spindle is guided by two bearings 14 and 15, see Fig. 2. The

bearing 141' is on the extreme inner end of the spindle, while the bearing 15 is spaced somewhat farther along toward the middle thereof. Each of these bearings comprise lateral motion of the spindle is entirely pre- Figs. 2 and 10).

7.5 vented. The ball spacers 17 do not extend entirely around. the ball race but project tangentially to engage the sides of the rack, see Figs. 3, 9 and 10, whereby they are prevented from rotation. Projecting fronitlier o ball spacers 17 are lugs 19, preferably two; lugs being provided on'each spacer (see 7 Carried by the ball spacer 17 is a felt oil pad 13 for keeping the balls 1 and the interior of the tube oiled and for collecting particles of grit that may work into-the tube. These pads are held in place byvplates l3. I

The spindle rotating mechanism is disposed between the two sets of balls and comprises two oppositely threaded o1- toothed, spaced apart spiral or helical gear wheels A and B mounted to freel rotateon the B, and'there-by be made to transmit rotary motion of the gears A or B to the spindle.

- The ratchet wheels are normally held out of contact with the pawls A and B by coil springs pushing against the ends of the gear wheels A and B and the colla 23 on ratchet wheels A and B It may thus be seen that by bringing the pawl A into engagement with ratchet wheel A and rotatr' ing gear A by reciprocating the handle and the rack relatively thereto the spindle 4: may

be rotated in one direction when the handle is pushed toward retracted position, the pawl and ratchet teeth preventing the rotation whenthe handleis being moved to extended position. During this time the I B will rotate freely. By bringing pawl B into engagement with ratchet B the rotation of the spindle is reversed. If A and 'B --are engaged simultaneously with tl1eir re- 1 25 handle,las in the well known types of ratchet screw drivers now in commercial use.

For moving the ratchets as desired, I have provided .a shifting device 25 carried by the spindle but having a limited sliding movement relatively thereto. This shifting mechanism comprises two similar sections 26 and 26 secured together (see Fig. 2). Each section, as shown in Fig. 19, consists of a single piece of thin resilient metal having a base portion 27 corrugated at 28 to make that portion of the base elastic. It is against the spring portion 28 that ratchets A and B move during the movement of the handle in one direction. On one end of the base is a disk shaped end 29 at right angles to the base and having an opening therethrough through which the spindle 4 ispassed, It is provided with inturned edges 30 adapted to hold a felt or othersuitable oil pad and dust collector 31 (see Fig. 23), which pad coming in contact with the rack keeps that member and both spirals well oiled. The opposite face of the disk portion 29 is adapted to bear against the collars 23 of ratchet wheels-A or B The opposite end of the base portion 27 of each section is bent angularly to form a spring portion 31 which supports the vertical part 32. The top of the part 32 is rovided with a sharp projecting lug 34. T

gether in any suitable way (see Fig. 2). The shoulders 35 on the vertical ends 34 are adapted to be normally held in one of the annular grooves a, b, or 0 in the spindle 4 between the two gear wheels A and B, by

the upward pressure of the spring31 of each section. Disposed between the two ends, 29 and 34 is a curved arm 36 having projections 37 thereon and bearing against the walls of the tubular casing 2, by which the shifting mechanism is held in-proper position in the tube. A longitudinal projection 38 is pro vided on the curved arm 36 and has a lug 33 thereon for engagement with the gear A or B to regulate the sliding movement of the shifting mechanism. It will-be seenthat by pressing down on lug 34 shoulder 35 may be disengaged from the grooves a, b and 0 on the spindle 40 as indicated in Fig. 8 and the shifting mechanism may be moved in the desired directionwhereby the ratchet wheels A and B may be moved into and out of engagement with the driving pawls A and B. For instance, if'shoulder 35 is e vertical parts 32 of each section adjacent to each other are'secured to throughout'the major portion of the length of the tube 2 and having depressions 39 at each end. There is also provided a second slot 40 of comparatively short length. A ribbed strip 41 is provided in slot 38 and is slidably supported therein by springs 42 secured to either end thereof and having their free ends resting in thedepressions 39. This strip 41 is provided throughout its length with serrations or teeth. Secured to the strip 41 is a plate 44, as shown in Fig. 13, which plate is provided with lugs 45 and a projection 46 on the upper surface thereof. The project-ion 46 is preferably roughened as indicated in order that it may better be moved by the thumb or finger. of the operator. For protecting the exposed parts of the strip 41 and plate 44, I have provided a second plate 47 as shown in Fig. 18, which is'adapted to be secured to the tube 2 in any suitable manner, and which has a longitudinally extending portion 48 covering the exposed portion of the slot, and a laterally projecting part 49 covering the shorter slot 40. A portion of the plate 47 above theplate 44 is pressed outwardly and is provided with a slot 50'through which projection 46 extends. Onthe interior of the raised portion are secured strips 51 having recesses a, b, 0 therein- These recesses are so formed that thelugs 45 on the plate 44 may be normally pro ected therein, in

which position they are normally held by the springs 42 on the strip 41. By pressing down on the projection 46 the lugs 45 are length of thestrip 41, it will be seen that the shifting maybe accomplished irrespective of the relative position of the handle and the spindle. At the same time the relation between the shifting device and the sliding plate 44 is always maintained, the positions ct, b, c ofthe shifting device corresponding to positions a, b, c of the sliding plate, so

that, for instance, when the lugs 45 on the sliding plates are in the recesses a the shoulrecess a on the spindle.

As it is often desirable to use a screw, driver as a ratchet tool without any possibility of having a relative longitudinal movement between the spindle and thehandle, either when the spindle isin projected der 35 of the shifting device will engage the or retracted position, I have provided'means independent of the ratchet mechanism for securely locking the spindle in either of these.

positions. These means preferably comprise a plate 52 having inwardly turned lugs 53 (see Fig.22) supported above the slot 40 in the tube 2 by means of a flat'spring 54 (see Fig; 21). As shown in Fig. 10 thls spring normally keeps the plate 52 from projecting the lugs 53 through the slot 40. Mounted in the plate 47 is a slide 55- (see Fig. having a projecting portion 56 extending through a slot '57 in-the plate 47. The slide 55 has a sloping portion 58 adapted to engage the plate 52 to force the lugs 53 throughthe slot when the slide is moved to locking position. When the lugs 53 are projected through the slot 40 into the interior of the tube 2 and the spindle is in retracted position they will engage the lugs 19 on the ball-spacer 17 of the ball bearing 15. If, however, the spindle is in extended position the lugs 53 will engage the lugs 19011 the ball bearing 14. In either instance, however, it will be seen that the longitudinal moveme'nt of thespindle will be prevented with out interfering with the ratchet mechanism.

lVheniit is, desired to release the locking mechanism, the slide is moved in the opposite direction and .the plate 52 returned to its normal position by the action of the spring 54L The slide is preferably provided with a rounded end portion '60 forming a head which normally engages a recess 61 or.

61 to hold the slideagainst movement. From the foregoing it will be seen that I have provided a tool" which is practically dust. proof and which is provided with oil 1.;In a tool, the combination of a spindle casing, a rotary spindle mounted to, move into and out of said casing, and means for locking sa1d spindle 1n either its inner or;

outerposition without interfering with the rotation thereof.

2. In a tool, the combination of a spindle casing, a spindle mountedto move into and out of said casing, a plate having lugs nor.-

mally out of engagement with the spindle, anda slide for-moving said lugs into operative engagement with the'spindle to lock same in elther its inner or outer position.

carry dirt into the 3'. Ina tool, the combination of a spindle casing, a spindle mounted to move into and out of said casing, means for rotating said spindle, and means for lockingsaid spindle in either its inner or outer position, said locking'means permitting rotation of the spindle. 1

4. In a tool, the combination of a spindle casing, a spindle mounted to move into and out of said casing, ratchet mechanism controlling the rotation of said spindle in either direction, and independent locking means nism for holding the spindle in either its inner or outer position. p

5. In a tool, the coinbination of a spindle casing, a spindle mounted to move into and out of said casing bearings on ings, locking means normally *outof en 'gagement with sa1d lugs, and meansfor moving said locking means into engagement withthe lugs whereby the spindle may be locked in either its inner'or' outer position.

6. A tool, comprising a spindle casing, a rack having oppositely inclined teeth dis-' posed longitudinally in the casing, a spindle mounted to move into and out of said casing, oppositely rotatable gears on imparting the rotation of-the gears to the spindle...

7. A tool, comprising hollow spindle casing, a rack bar having oppositely inclined teeth disposedlongitudinally in the spindle casing, 'a spindle mounted to'movefinto and out of said casing, gear wheels on said spindle having oppositely arranged teeth for en: gagement with said rack bar, means for imparting thefrotation of either one of said gears to the spindle, shifting means cooperating with the spindle rotatmgmeans for permitting rotation of the ratchet mechag said spindle and movable 'therewitln'lugs on said bear- V 7 said spindle adapted to engage sa1d rack, and means for rotating thespindle in the desired direction, and means for'movmg the shiftlng means" irrespective of the position of the spindle in the casing. I Y

8. A'tool,'comprising a spindle casing,a

rack having oppositely inclined teeth disposed longitudinally in the casing, a spindle mounted to move into and] out of said casing;

gears having oppositely inclined teeth on sa1d spmdleadapted to engage sa1d rack whereby they: are rotated in opposite direc-- tions, and means for imparting the rotation of either one of the gears to the spindle for rotating the spindle. Y Y l 9. A tool,- comprising a spindleicasing, a

' rack having oppositely inclined teeth disposed longitudinally in the casing, a spindle i mounted to move into and out of said casing, gears having. oppositely said spindle adapted to 1 engage said rack whereby they are rotated in opposite direcinclined teeth on.

tions, and means'for imparting the rotation j of either-one of the gears to the spindle for rotating the spindle or for simultaneously bringing both gears into'operative engagement with the spindle to hold'the spindle from rotation. 10. A tool, comprising aspindle casing, a rack having oppositely inclined teeth in the casing, a spindle mounted to move into and out of said casing, gears having oppositely inclined teeth on said spindle adapted to engage said rack whereby they are rotated in opposite directions ratchet means for imparting the rotation of the gears in a singledirection to the spindle, and means for moving the gears into and out of driving con nection with the spindle.

11. A tool, comprising a spindle casing, a rack having oppositely inclined teeth in the casing, a spindle mounted to move into and out of said casing, gears having oppositely inclined teeth on said spindle adapted to engage said rack whereby the gears are re tated in opposite directions, means for imparting the rotation of either one of the gears to the spindle, and means for moving the gears into and out of driving relation with the spindle irrespective of the position of the spindle in the casing.

12. A tool, comprising a spindle casing, a rack having oppositely melined teeth in the casing, a spindle mounted to move into and out of said casing, gears having oppositely inclined teeth on said spindle adapted to engage said rack whereby the gears are rotated in opposite directions, ratchet means for imparting the rotationof either one of the gears to the spindle, and means for moving said'ratlchet means into and out of driving relation with the spindle irrespective of the position of the spindle in the casing.

13. A tool, comprising a spindle casing, a rack having oppositely inclined teeth in the casing, a spindle mounted tomove into and out of saidcasing, gears having oppositely inclined teeth on said spindle adapted to engage said rack whereby they are rotated in opposite directions, ratchets for imparting the rotation of either spindle, means for moving the ratchets into and out of driving relation with the spindle, and an oil pad carried by said moving means. 1

14; A tool, comprising a spindle casing, a rack having oppositely inclined teeth in said casing, a spindle mounted to move into. and out of said casing, two gear wheels having oppositely inclined teeth mounted, on said spindle and adapted to engage said rack whereby they are rotated in opposite directions, ratchets for imparting the rotation of the gears in one direction to the spindle, shifting means for moving said ratchets into and ontof engagement with the gears and means for moving said shifting means irrespective of its position in the spindle casing. 15. A tool, comprisinga spindle casing, a

of the gears to the ing elastic portions whereby the ratchets are held in yielding engagement with the gears. '16.,A tool comprising a spindle casing, a rack having oppositely inclined teethvdisposed longitudinally in the casing, a spindle mounted to move into and out of said casing, two gear wheels on saidspindle having oppositely inclined teeth adapted to engage said rack whereby the gears are rotated in opposite directions, ratchets for imparting the rotation of the gears in one direction to the spindle, shifting means carried by the spindle for moving said ratchets into and out of operative engagement with the gears, and means for locking the shifting means in any one of three desired positions whereby the spindle may be rotated in the desired direction or may beheld against rotation.

17. A'tool, comprising a spindle casing, a rack having oppositely inclined teeth disposed longitudinally in the casing, a spindle mounted to move into and out ofsaid casing, wo gear wheels on said spindle havingoppositely inclined teeth adapted to engage said rack whereby the gears are rotated in opposite directions, ratchets for imparting the rotation of the gears in one direction to the spindle, shifting means carried by the spindle for moving said'ratchets into and out of operative engagement with the gears, means for locking the shifting means in any one of three desired positions whereby the spindle may :be rotated in the desired direction or may be held against rotation, and means for disengaging said shifting means from the locking means and moving it to either of the other desired positions irrespective of the position of the spindle in the casing. we

18:. A tool, comprising a spindle casing, a rack having oppositely inclined teeth disposed longitndinally in the casing, a spindle mounted to move into and out of said casing, two gear wheels having oppositely inclined teeth on said spindle adapted to engage said rack whereby the gears are rotated in opposite directions. ratchets for imparting the rotation (of the gears in a single direction to the spindle, shifting mechanism carried by the spindle for movnism, irrespective of the position of the spindle in the casing, means for limiting the movement of the shifting mechanism, and means for holding the shifting mechanism in the desired position.

.19. A tool, comprising a'spindle casing, a rack having oppositely inclined teeth in the casing, a spindle mounted to move into and out of said casing,'two gear wheelshaving oppositely inclined teeth on'said spindle and adapted'to engage said rack'whereby theyare rotated in opposite directions,'a ratchet for engagement with each of said gears for imparting the rotation of the gears in one directionto the spindle, and shifting mecha- V I nism for movingsaid ratchets into and out of engagement with the gears irrespectiveof theposition of the spindle in thecasing.

20.- A tool, comprising aspindle casing, a rack having oppositely inclined teeth disposed longitudinally in the casing, a spindle mounted to move into and out of said casing two gear wheels having oppositely inclined teeth carried on said spindle and adapted to engage said rack whereby they are rotated in opposite directions, a ratchet for engagement witheach of said gears secured to the spindle whereby the rotation ofthe gears in one direction may be imparted to the spindle, shifting mechanism for moving said ratchets into and out of engagement with the gears, a lug on said shifting mechanism, a strip extending'substantially the length of the casing and having teeth therein for engagement with thelug of the shifting mechanism, means'for normally holding said strip out of engagement with the lug, and means for moving said strip into engagement with the lug for moving the shifting mechanism.

21.- A tool, comprisinga spindle casing, a rack having oppositely inclined teeth disposed longitudinally in the casing, aspindle mounted to move into and out of said casing, two gear wheels having oppositely inclined teethcarriedonsaid spindle and adapted to engage said rack whereby they arejrotated in opposite directions, a ratchet for engagement with each of saidgears secured to the spindle whereby the rotation of the gearsin one direction may be imparted to the spindle, shifting mechanism for moving said ratchets into and out of engagement with the gears, means for holding said shifting mechanism in any one of three desired positions, a strip slidably mounted in said casing and extending substantially the entire length thereof, means on said strip for engagement with said shifting mechanism for effecting its movement to any of the threedesired positions means for holding said strip normally out of engagement with the shifting mechanism, and means for holdingsaid strip in any one of: three desired positions corresponding to the position posed longitudinally in the casing, a spin' dle mounted to move into and out of said casing, gears on said spindle adapted to. en-

gage said rack, each of said gears having oppositely disposed .teeth thereon whereby they are rotated in opposite directions, ratchets for engagement with each 'of said gears for imparting the rotation of the gears in one direction to thespindle, shifting mechanism for moving said ratchets into and out of engagement with the gears, means for holding said shifting mechanism in any one of three desired positions, a

slide for efi'ecting the movement of said shifting means, and means for holding the slide in any one of three desired positions, saidpositions correspo'ndingto the positions of the shifting mechanism.

23. A tool, comprising a spindle casing, a rack having oppositely inclined teeth in the casing, a spindle. mounted tomove into and out of said casing, gearing on the spindle for engaging the rack and imparting motio to the spindle, and a ball bearing on the end 'of said spindle, said ball bearing comprising a ball race secured to the shaft and rotatable therewith, a ball spacer moving with said 7 ball race and having means for preventing its rotation, balls carried in said ball spacer, and a felt pad surrounding the ball spacer.

24:. A tool, comprising aspindle casing,-a rack insaid casing, a spindle mounted to move into and out of said casing, aballbearing disposed on the inner end of said'spindle adapted to engage thewalls of the caslng', V

' a similar ball bearing on the spindle having aspaced relation to the first bearing, and gearing. disposed between the bearings for engagementwith the rack and imparting rotation to the spindle.

25.- A'tool, comprising a spindle casing, a rack in .said casing, a spindle mounted to move into and out of said casing, a ball bearing disposed on the inner end of said spindle adapted to engage thewalls ofthe casing, a similar ball bearing on-the sp indle having a spaced relation to the first bearing, gearing disposed between the bearings for engagement with the rack and imparting. rotation to the spindle, locking means in said casing adapted to engage said ball bearings, and means for projecting the locking mechanism into and out of the path of the bearings. 1 f

In testimony whereof, I have hereunto subscribed my name. i r FREDERICK BOOTH.

' Signed as witnesses:

- CHARLES W. HARRISON, OHESTER BUNTON.