US838250A

US838250A - Machine for grinding or cutting.

Info

Publication number: US838250A
Application number: US19754804A
Authority: US
Inventors: John W Hudlow
Original assignee: HARRY I CHEW
Current assignee: HARRY I CHEW
Priority date: 1904-03-10
Filing date: 1904-03-10
Publication date: 1906-12-11
Anticipated expiration: 1923-12-11

Description

No. 838,250. PATENTED DEC. 11, 1906. J. W. HUDLOW- 5 SHEETS-SHEET 1, MACHINE FOR GRINDING 0R CUTTING.

APPLICATION FILED MARJO, 1904. I D

Rwf 0 9 1 .l 1 C E D D E T N E T A P W 0 L D U H W 0 5 8 3 8 0 N MACHINE FOR GRINDING OR CUTTING.

APPLICATION FILED mime, 190-1.

6 SHEETS-SHEET 2.

wwe/awo PATENTED DEC. 11, 1906.

J. W. HUDLOWQ MACHINE FOR GRINDING 0R CUTTING.

APPLIUATION FILED MIAIL10 19M;

5 SHEETS-SHEET 3.

W /mm No. 838,250. PATENTED DEC. 11, 1906.

J. W. HUDLOW.

MACHINE FOR GRINDING 0R CUTTING.

APPLICATION FILED MARJO, 1904.

BSHEETS-SHHBT 4.

abto'tmu No. 838,250. PATENTED DEC. 11, 1906.

J. W; HUDLOW.

MACHINE FOR GRINDINGOR CUTTING.

APPLIOATION PILE ARJO 1904.

6 SHEETSSHEET 5.

l/ve/aam f 564 1 222;

NI ED STATES PATENT OFFICE.

JOHN W. HUDLOVV, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR OF ONE-THIRD TO'HARRY I. CHEW, OF WASHINGTON, DISTRICT OF COLUMBIA.

"MACHINE Fonemivnme on CUTTING.

Washington, in the District of Columbia,

have invented certain new and useful Improvements in Machines for Grinding or Outting, of which the following is a specification.

The object of this invention is to provide a machine for grinding'or cutting any desired angle, curve or curves, or radius upon milling-cutters, lathe, tools, or gages, or any. other tool,male orpfemale, withoutresetting the machine after it has once been adjusted.

With this end in view the invention consistsin the particular construction of the various parts and in the novel manner of combination and arrangement of said parts, all

' taken on line A B of Fig. 5.

Fig. '16 is still another form of the cams.

' in Fig; 16. Fig. '18 is a top plan view-of the .cams shown in Fig.6, and Fig. -19 isa side 5 of which will be fully described, and specifically pointed out in the appended claims.

In the drawings forming a part of this specification, Figure 1 is a side elevation of thecomplete machine; Figs. 2 and 3, enlarged detail views of the.rotatable head. Fig. 2-

illustrates the head supporting a cutter, and Fig. 3 illustrates the headsupporting a grinding-wheel. Fig. 4 is a vertical sectional view Fig. 5 is a top plan view with the tablerem oved, parts being broken away. Fig. 6 is a perspective view of the cams, &c. ble and attachments. Fig. 8 is a side eleva tion of the centering-pin. Fig. 9 is a modification of the table attachment, F ig, 10 is a modification illustrating another form of the table attachment. Fig. 1 1 is a side elevation of the form shown in Fig. 10. Fig. 12 is. a modified form of the cams. Fig. 13 is head elevation of form shown in Fig. 12. Fig. 14 is another modified form of the cam. Fig. 15 isa side elevation of the form shown in Fig-C14.

17 is a side elevation of the forms shown elevation of the same;

,Referring by numerals tothe drawings, 1

represents a bed-plate having integral therewith a perpendicular split eollar 2,'whicl1 surrounds a shaft 3, adapted to be. raised or'I0w ered and locked in any desired position.

Pivoted to this shaft and provided with means for locking the same thereto is an;

arm 4, having a rotatable head 5, which is 7 is a top plan view of ta- Specification of Letters Patent Application filed March 10, 1904- Scrial No. 197.548-

. Patented Dec. 11, 1906.

also provided with means for locking it in any The bed-plate is formed with a transverse dovetailed guide 7, fitting snuglyintoa dove- I tailed guideway'S upon a saddle 9, which may be moved back and forth by an adjusting-screw 10, operated by hand-wheel 11.

The saddle carries longitudinally-

adjustable guides

12, 12, and. 13, parallel with respect to each other, yet not in the same plane,

and a sliding rack-bar 14 in engagement with a pinion 15 upon a transverse shaft 16, driven by hand-wheel 17, the object of which will be hereinafter explained. H

Mounted upon the saddle in guideways 18 is a table 19, in'the center of which is an aperture 20, surrounded by downwardly-projecting sleeve or collar 21 and an upwardly-extending circular flange 22, both of which are formed integral with the table.- Fitting snugly into the sleeve or collar 21 is a bushing 23, serving as a bearing for a shaft 24, the

upper end of which is secured to a disk 25,

fitting in the circular flange 22, and its lower end is formed with acam 26, consistingof a disk provided with an ear 27 and a slot 28, adapted to engage the guide 12. A similar cam 29, consisting of a disk having an ear 30 and a slot 31, which slot is adapted to engage the guide 13, is j ournaled upon the shaft and rests against the cam 26. This shaft is further provided with sleeve 32, keyed there upon and externally screw-threaded, as shown at 33, which threads are ada ted to receive a lock-nut 34 for securing t h cams together, and a inion-35, which meshes with the sliding rackar14. The top ofthe shaft is provided with a central screwthreaded aperture 36, adapted to receive a hand-screw 37, in the center of which is an 39. This end screwserves to secure a sliding register with the zero-point onthe flange 22..

rest ,40 to the disk 25, which sliding rest is provided with calibrations 41, adapted 'to' This slide-rest is adapted to receive any desired form of a tool-holder.

In Fi s.'1O and 11 I have shown amodified form o a tool-holder which consists .of a 'plate42,, ada ted to taketheplac'e' of the his plate is provided wlth oppo- I point of the slide-rest.

1o turn-nut 48, the

2 5 any desired angle may be ground or cut.

5 5' will be seen t sitely-disposed and adjustable bearing-points! 48 and 44, between which may be held the work to be ground.

In Figs. 12 and 13 I. have shown different 5 form of a cam. This form, however, can

only be used for grinding or cutting an angle of ninety degrees. It consists of a guideway 45, in which travels a square portion 46 of a shaft 47. At a oint in the guideway is a head of which is. cut away, as shown at 49. When the square portion 46 engages the cut-away portion of the turnnut in its path of travel, the shaft revolves ninety degrees and'then continues on, said shaft carrying the table.

In Figs. 14 and 15 I have shown another modified form of a cam for cutting an angle of ninety degrees' It consists of a disk 50, formed upon the end of a shaft 51,with

slots

52 and 53 therein at right angles to and one ,above the other, which slots are adapted to engage the

guideways

54 and 55, respectively.

In Figs. 16 and 17 I have shown still another form of cams.

It consists of two similar

oblong pieces

56 and 57, one of which, the piece 56, is formed upon the shaft 58, the other piece 57 journaled upon the shaft and is adapted to be locked 0 at the desired angle with respect to the piece 56 by lock-nut 59. These pieces are adapted to travel-in a slot 60, at a suitable point in which is a cut-away portion 61, where the? shaft revolves and changes the cutting or 3 5 grinding of the tool according to-the angle set.

In Fig. 9 Ihave shown a modified form of a table attachment designed for cutting com 7 pound curves. It consists of the slide-rest Z0 62, similar to that shown in Fig. 7, whichv the slots in the two cams in alinement, in which position the slide-rest is at zero.' The hand-screw is then tightened and the slide rest adjusted to the angle it is desired to out or grind. U 011 adjusting the slide-rest it at the cam 26 is also adjusted, as it is locked thereto by thehand-screW or pin. When the desired adjustment has been made, the cams arelocked together by the lock-nut 34 and the handescrew is loosened 60 and the pin removed, soas to leave the sliderest free'toswing r After the -earns have been adjusted the ble is moved by means of the sliding rackbar 14, which engages a pinion 35 upon the 6 5 shaft and is driven by the pinion 15, mounted I hand-wheel.

By means of this form upon. a transverse shaft 16, operated by a Assuming that the cam 26 is in engagement with the guide 12 and is being moved to. the left by the rack-bar 14, it will be seen that upon reaching the space between the

guides

12 and 13 the cams-will be turned by means of the shaft rotated by the pinion and rack-bar until the ear 30 upon the cam 29 engages the guide 13, at which point the guide 13 enters the slot 31, and the table continues on at the angle previously set. I

I deem the various modifications shown and described within the scope of my inven tion, for such minor changes may be resorted to without sacrificing the broad principle herein set forth.

Having thus described the various 'features of my invention, what I claim as new,

and desire to secure by Letters Patent, is-

1. In a machine ofthe character described,

table, a cam formed upon the lower end of the shaft, a cam mounted to revolve upon a shaft, means for locking the cams together,

a slide-rest mounted upon the upper end of the shaft, means for locking the said sliderest and shaft together, adjustable guides adapted to engage said cams, a space between saidguides to permit said cams to revolve means for reciprocating and driving the shaft substantially as specified.

2. In a machine of the character described, a bed-plate having a saddle mounted'thereupon, a table mounted uponthe saddle, a perpendicular shaft. carried by the table, the

lower end of the shaft being formed with a cam, a cam mounted to. revolveupon the 'I oo shaft, the cams consisting of disks each having an ear and slot, means for lockingthe cams together a slide-rest mounted upon the upper end of the shaft, a hand-screw for securing the slide-rest upon the shaft, a centering-pin in the topv of the hand-screw, adjust able guides for engaging the slots in the cams,

a space between the guides to permit the said .cams to revolve and means for reciprocating and driving the shaft, substantially as specified.

3. In a machine of the character described, a bed-plate, a saddle, adjustabl'y mounted upon the bed-plate; a table adapted to reciprocate upon the saddle, a rotatable vertica-l shaft carried by the table, cams upon the lower end of the shaft, means for locking the cams together at any desired angle, ad

justable guides adapted to engage the respective cams, a space between the guides to permit said cams to revolve, means for reciprocating and rotating the said shaft and cams and carried thereby, a slide-rest secured to the upper end of the shaft, means upon the slide-rest for supporting a tool, and a centering-pin in the center of said slide rest, substantially as s ecified.

4. In a machine of t e character described,

i a table, a perpendicular shaft carried by the position, means upon the head forholding a bed-plate, a'vertical split collar formed desired angle, adjustable guidesforengaging upon the bed-plate, a column mounted in the collar, means for raising, lowering, rotating, and locking said column, an arm pivoted to the column, means for locking the arm to the column a rotatable head u oh thearm, means for locking the head 1n any desired and *rotating a tool, a saddle adjustably mounted upon the bed-plate, a table mounted to reciprocate upon the saddle, a vertical shaft carried by said table, a fixed and a movable cam upon the lower end of the shaft,- means for locking the cams together at any the respective cams, a space between the guides to permit said cams to revolve a sliderest mounted upon the upper end of the shaft, a hand-screw for securingthe slide' rest in position, a centering-pin the top of the vsaid screw and means for reciprocating and rotating the said. vertical shaft and cams carried thereby, substantially as specified.

JOHN W. HUDLOW.v