US1311456A - Planqoraph co - Google Patents

Description

E. N. MOOR.

INDEXING AND DIVIDING MACHINE. APPLICATION FILED MAY 29. 1918.

1,3 1 1,456. Patented July 29, 1919.

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E. N. MOOR.

INDEXING AND DIVIDING MACHINE. APPLICATION FILED MAYZB. 191a.

1,3 1 1,456. Patented July 29, 1919.

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E. N- MOOR.

INDEXING AND DIVIDING MACHINE.

APPLICATION FILED MAY 29. I918.

1,3 1 1 ,Q5 Patented July 29, 1919.

4 SHEETSSHEET 3.

Z WITNESS; g INVENTOR. 505 1 03%)? I BY if 6! w? A TTORNE YS.

E. N. MOOR. INDEXING AND DIVIDING MACHINE. APPLICATION FILED MAY29. 1918.

1,3 1 1 A56. Patented July 29, 1919.

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EDWARD N. MOOR, 0F OAKLAND, GALIFO'RNIA' INDEXING AND DIVIDING MACHINE.

Specification of Letters latent.

Patented July 29,1919.

Application filed May .29, 1918. Serial No. 237,317.

To all whom it may concern:

Be it known that I, EDWARD N. Moon, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented certain new and useful Improvements in Indexing and Dividing Machines, of which the following is a specification.

My invention relates to indexing or dividing machines.

The object is to provide a simple and effective machine for calibrating or dividing work held therein i to any desired fractions, either in a vertical or horizontal posi tion, and for drilling holes in the work at any given distance apart upon the radius of any circle.

The stroke of the cutting or marking tool is automatically controlled, to .provide for the different lengths of the marks; and feed of the work may be either positive or selective, the latter converting the device into a universal tool for dividing any work held,

into any fractional divisions.

My invention consists in the novel machine for the purposes stated, which I shall now fully describe, by reference to the accompanying drawings, in which Figure 1 is a front elevation of my machine, in the form adapted for vertical calibration.

Fig. 2 is a top plan view of the same.

A Fig. 3 is an end view of the same.

Fig. 4 is a partial vertical section.

Fig. 5 is a front elevation of the machine modified for horizontal calibration of the work held therein.

Fig. 6 is a detail of Fig. 5.

Fig. 7 is a partial detail in front elevation section on the line 6--6 of the machine as modified, for a selective divisional feed of the work.

Fig. 8 is an end view of Fig. 7

Fig. 9 is a partial detail elevation of the machine modified for divisional drilling.

1 is a bed-plate with standards 2, which carry a cross bar 3, these parts constituting the main frame.

Mounted for rotation in a bearing 1 on the bed-plate is a worm-wheel 4. The wormwheel carries a chuck 5 to be associated with it in any suitable manner, as, for example, by having a stem 5 dropped into a taper hole in the wheel hub, as seen in Fig. 4. In Fig. 1, is shown in dotted lines, the work 6 to be divided. 7 W

through this movement the worm 7 is a worm-spindle, carrying the worm 8, whlch engages the worm wheel. One end of the worm-spindle carries a ratchet wheel 9, with which an actuating pawl 10 engages.

11 is a swinging pressure arm pivoted in one of the bed-plate standards 2 at 12. This arm carries a short shaft 13, upon which is fixed a ratchet wheel 14. Upon thisshaft is also carried in a bearing 13, a presser disk 15, the periphery of which is provided with two distance lugs, radially projecting, one designated by 15 being shorter than the other which is designated by 15".

l/Vith the ratchet wheel 14 an actuating pawl 16 engages.

Mounted in one of the standards 2 is the operating or drive shaft 17 with a crank handle 18 on one end. On the drive shaft is a crank disk 19 with a crank pin 20. This pin plays in a slot 21 in the swinging pressure arm 11, and upon said pin, the adjacent ends of both actuating pawls 10 and 16 are pivotally mounted.

A spring 22 connecting the holds them to their engagement respective ratchet wheels.

Mounted for vertical movement, in the cross-bar 3 of the main frame is the toolholder frame 23, controlled by springs 24. The top of this frame carries the contact 25 which is held against the presser disk 15 and its distance lugs 15 and 15". The foot of the stem 26 of said frame 23 carries the holder 27 for the marking, or other tool 28, as seen in Figs. 3 and 4.

It will now be seen from the foregoing description, reference being had particularly to Figs. 1 to 4, that by the revolution of the crank-handle 18, the pawl 10 elfects the movement of the ratchet wheel 9, and

i .8 will turn the worm wheel 4 and the work 6. By the same movement of the crank handle the pawl 16 will turn the ratchet wheel 14 and short shaft 13 in order to successively pre sent the plain periphery of the presser disk 15 and its two distance lugs 15 and 15 to the contact 25; and further by the swinging of the pressure arm 11, .due to thecrank pin 20, the pressure disk 15 will be forced down on said contact 25, and thereby force down the tool holder frame 23, and cause the mark ing tool 28 to act upon the work 6.

Assume now that in practice, for convenient size the worm wheel. 4 has 144 teeth, and that the worm 8 has a duplex thread,

two pawls with their 1 of the mark it makes onthe work.

time presenting its as here shown, we then have a ratio of 7 2 to 1. Then if the ratchet wheel 9 havefive teeth, as here shown, it follows that one revolution of the crank 18, will feed the work one degree.

Assume also that the ratchet Wheel 14 has ten teeth, and that the distance lugs 15 and 15 are located on the pressure disk 15 oppositely. It will then follow that one revolution of crank 18 will turn the presser disk 15 one tooth, and the downward movement of said disk, due to the depression of the lever 11, will cause the too-l 28 to mark the work on the degree to which the latter has been fed. If the presser disk is at the plain periphery, the stroke of the tool will be a short one, and this will be the same for four revolutions of the crank. But on the fifth revolution the shorter distance lug 15 will be presented, and the effect will be to increase the length of the tool stroke and the consequent length I Four succeeding strokes will be short, and for the tenth stroke, the longer distance lug 15" will be presented, and the longest mark will be made on the work. The calibration will thus be the longest mark, followed by four shortest marks, followed by one mark ofintervening length, followed by four short marks, followed again by the longest mark, and so on, in the usual form of calibration.

Thus any proper proportioning of these several movements results in dividing the work throughout the circle.

Referring now particularly to Figs. 5 and 6, wherein similar partsare designated by like numerals, I show a modification of the device adapting it for marking the work horizontally instead of vertically.

In this modification the pawl 16 of previous figures is replaced byv an. eccentric-link 29, fitted on the crank-pin 20, and said link coacts with a vertically swinging link 30 the lower end of which is connected with and reciprocates horizontally the carriage 31 which carries the tool 28. The carriage 31 .is fitted upon a vertically adjustable rest 32 carried by the bed plate 1.

In order to adapt the machine for selectively dividin the work into any other fractions, I modi y it as shown in Figs. 7 and 8. In-these figures, enough is shown to indicate the machine in general of the previous figures, many parts being omitted as unnecessary to repeat.

In this modification I mount on the end of I the worm-spindle 7, an ordinary dividing plate 33, provided with the usual countingstops 34. Upon the main frame is adjustably fitted at 35 the index-arm 36, provided with a pin 37 to fit in any of the holes of the annular rows in the dividing plate, said arm having also a handle 38. .In this form of the machine, the work is turned to the desired positions, manually by the operator 1ng previously fixed, with relation to the proper hole. This has the effect of turning the worm spindle 7 and thereby turning the worm wheel 4 and the Work it carries,

as selectively predetermined. In this operation, the pawl 10 of the general machine is of course inactive, because the ratchet wheel 9 has been removed'to give place to the dividing plate assemblage, but the marking device of the general machine is still used as before, by the operation of the crank handle 18. i

In Fig. 9 I show the machine as modified for drilling. In this case, the universal dividing plate 33 of Fig. 7 and 8 is used, and the work is turned thereby. Upon one of the standards 2 of the bed plate 1, is ad justably mounted the carrying arm 39 of the drill 40, the latter being pressed down to the work by the lever 41, and rotated by the belt 42, passing over pulleys 43.

1. A machine for the described purpose, comprising a worm-wheel; means for holding the work 011 said wheel; a worm-spindle engaging said worm-wheel; a reciprocative tool-holder; a tool carried by said holder for acting on the'work as turned, a single drive-shaft; and means operated by said shaft for both intermittently turning the worm-spindle and reciprocating the toolholder in conformity with the intermittent movement of the worm Wheel and work.

2. A machine for the described purpose, comprising a worm-wheel; means for holding the work on said wheel; a worm-spindle engaging said worm-wheel; a. reoiprocative tool-holder; a tool carried by said holder for marking the Work; a drive-shaft having a crank; and means operated by said shaft for turning the worm-spindle and reciproeating the tool-holder, comprising a swing,- ing pressure lever in which the crank of said drive shaft is slidably mounted, means coacting with said lever for reciprocating the tool-holder, and connections from said crank to the worm spindle.

3. A machine for the described purpose, comprising a worm-wheel; meansfor holding the work on said wheel; a worm-spindle engaging said worm-wheel; a reciprocative tool-holder; a-tool carried by said holder for marking the work; a drive-shaft having a crank; and means operated by said shaft for turning the worm-spindle and reciprocatlng the tool-holder, comprisinga swinging pressure lever in which the crank of said drive shaft is slidably mounted, an actuating pawl operated by the'crank shaft;

2 ratchet wheel on the worm-spindle, with which said pawl engages, a second pawl operated by said crank shaft, a second ratchet wheel with which said pawl engages, said ratchet wheel being carried by the pressure lever, and a pressure disk affected by said second ratchet wheel and operating on the tool holder.

4:. A machine for the described purpose, comprising a worm-wheel; means for holding the work on said wheel; a worm-spindle engaging said worm-wheel; a reciprocative tool-holder; a tool carried by said holder for marking the work; a drive-shaft having a crank; and means operated by said shaft for turning the worm-spindle and reciprocating the tool-holder, comprising a swinging pressure lever in which the crank of said drive shaft is slidably mounted, an actuating pawl operated by the crank shaft; a ratchet wheel on the worm-spindle, with which said pawl engages, a second pawl operated by said crank shaft, a second ratchet wheel with which said pawl engages, said ratchet wheel being carried by the pressure lever, and a pressure disk affected by said second ratchet wheel, and operating on the tool holder, said pressure disk carrying spaced distance lugs of different lengths to vary the stroke of the tool holder.

Copies of this patient may be obtained for 5. A machine for the described purpose, comprising a worm-wheel; means for holding the work on said wheel; a worm-spindle engaging said worm-wheel; a reciprocative tool-holder and tool carriedi thereby for marking the work; means for intermittently turning the worm-spindle; means for reciprocating the tool-holder in conformity with the intermittent movement of the worm wheel and work; and means for automatically varying the stroke of the tool-holder.

6. A machine for the described purpose, comprising a worm-wheel; means for holding the work on said wheel; a worm-spindle engaging said worm-wheel; a reciprocative tool-holder and tool carried thereby for marking the work; a drive-shaft; connections from said shaft to turn the worm spindle; connections from said shaft to reciprocate the tool-holder; and means included in said last named connections for varying the stroke of the tool holder.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDWARD N. MOOR.

WVitnesses l/VM. F. BOOTH, D, B, RICHARDS.

five cents each, by addressing the Qommissioner of Patents,

Washington, .D. G.

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