US1288125A

US1288125A - Magazine mechanism.

Info

Publication number: US1288125A
Application number: US198057A
Authority: US
Inventors: Friederich Mueller
Original assignee: Pratt and Whitney Co Inc
Current assignee: Pratt and Whitney Co Inc
Priority date: 1917-05-02
Filing date: 1917-10-23
Publication date: 1918-12-17
Anticipated expiration: 1935-12-17

Description

F. n/VLILLEBi Y MAGAZlNE MECHANISIVI. v APPLICATION FlLEVD 0CT.2 3| 1917.

. fmachines', etc. T

in detail and it will sra im comPANY, or NnW'YonK, N. Y., A conronarioiv orivnwv JERSEY-- i MAGAZINE ivinommsia.

` maaien vSpecification of Letters Patent.

oigaai application aigaraay e, 1917, serial no. 165,903. Divided and this application med octber aa,

To aZZ-w/iom it may concerti .I

Be it known `that i, FRIEDERICH a citizen of the United States, residing at Hartford, in the county of Hartford and State speciicatio 'lllie invention relates Mechanism, of which the following'fis a such as milling machines, lathes,.grinding` he mechanism as herein illustrated and described has features which particularly adaptit for use in connection.

with or as a part of a cylindrical grinding machine, but it will be understoodl that as concerns'other features of the invention the mechanism is adapted-t0 be used m connection 'with widely differing machines. The object of the invention is to provide s a magazinemechanism having various improvedfeatures whereby are attained simplicity of'construction, reliability of operation, ease of adj ustment and other important v advantages which will be apparent fromthe following -specification and claims. This application constitutes a d ivislon of v my copen'ding application for' automatic grindingmachine's, -iiled May 2nd, 1917, Serial No.V 165,903.

ofthe drawings which amsmath@ 'pre--` ferred embodiment of the invention:

Figure 1 is a front view of a metal-working machine provided with a magazine mechanism embodying the invention.

Fig.' 2 is affragmentary sectional View of the machine shown in Fig. 1

Fig. 3 isa detailview showing a part of the magazine mechanism.

Fig. e is a View similar to Fig. 3 but showing the elements 0f the magazine-mechanism dierently adjusted.v

- Figs. 5 and 6 are detail views.

In. Figs. 1 and 2 I have illustrated a grinding machine, this being the same'as that set -forth in my aforesaid application mounted on a'table 3 carried by the main 1317. Sera1 No. 198,057.

offConnecticut, have invented certain new and useful Improvements vin Magazine particularly to a 6 extending at Qand 10 with plate 12 are frame. The headstock and the tailstock are provided respectively with centers which are adapted, to engage the'ends of the blanks to be ground grinding operation.v shown at 4 and this trolled by suitable The grindingwheel is is supported and conmechanism which need not be described in detail.

Secured to the main casting oftlieheadstock 1 is a bracket 5. This is held by bolts bracket. 'These lslotted holes permit lim-- ited. adjustment of the bracket longitudinally of the headstock, and after adjustment the bolts serve t0 secure the bracket. yin adjusted position. Secured tothe main casting of the tailstock 2 is abracket 7. This isheld'by boltsB- extendingl through slotted holes 4in the bracket. permit vlimited adjustment of the bracket longitudinally of the tailstock, ,and after' adjustment'the. bolts bracket lin adjusted position., The two brackets 5 and 7 are provided respectively bearings in alinement with each other.

Pivotally mounted upon the bracket 5l by means ofa pivot pin at 11 .extending into the bearing 9 is a magazine frame plate 12. Fivotally mounted upon the bracket 7 by means of a pivot pin at 13 extending into the bearing 10 is a magazine frame plate 14. The two plates 1 2 and 14 are'similar to'each other except that they are oppositely formed, and the mechanisms ,carried by the platesl aresimilar except that they are oppositely formed. A detailed description of but one of the plates and of the mechanism carried Athereby will be sutliciennjthe plate 1 2 and the corresponding mechanism ,being shown in detail in Figs. Sto-6. Secured to the two relatively

long guide bars

15 and 16 whichtaken together form one of the body parts of the magazine. These bars are preferably angle-shaped in cross section, havingtiianges which project outward and having webs which are connected to the Aplate 12. Preferably, are adjustable' with respect to the plate, each bar having two

guide tongues

17 and 18 which are slidable respectively in

guideways

19 and 20 formed in the plate. The tongues and the guideways are approximately verratentea necji i', reis.

to supportV them during theA through slottei holes'in the 4 f These slotted holes serve to secure the as shown, the barsl eters at the two .other the lip 27 is moved tical and at an angle of to the

bars

15 and 16. The web of each angle bar is provided with slotted apertures 21 parallel to the

guide tongues

17 and 18, and screws 22 extending through these aper vtures and entering the plate serve to lock lever being at the aforesaid fixed center line.

The lever is provided with two

slots

25 and 26 positioned at equal distances from the pivot and receiving pins carried respectively by the

bars

15 and 16. It will be seen that by loosening the screws 22 the two

bars

15 and 16 can be moved equal distances in oppo- .site directions by means of the lever 24, the

bars being' guided by the

tongues

17 and 18. After adjustment the s'rews'22 are tightened, thus ldking the bars in adjusted positions.

It will be vunderstood as aforesaid., that the plate 1li is provided with mechanism similar to that already described. The two opposite sets of

bars

15 and 16 serve as guides for the ends of the blanks to be,

ground, and by adjusting the bars in the Wa described the mechanism can be adapted for blanks of different diameters. In fact, by dinerently adjusting the devices on the two plates the mechanism can be adapted for blank having different diamen s. Y At the lower end of each'bar 16 there is provided a stop or lip 27 the uppep surface of which is at an angle of approximately 90o to the bar 16. The stop serves to'prevent the movement of the blanks by gravity out of the `bottom of the magazine. By re'- to F ig. 3 and observing theI dotand-dash lines thereof, it will be noted that the lip 275s so positioned and that the

guide tongues

15 and 16 are at such an angle (approximately and 16 are separated or moved toward cach downward or upwardv exactly to the extent Anecessary to maintain the axis of the lowcrmost blank in fixed position., notwithstanding differences in the size thereof. lt will be understood that Fig. 3 shows the magazine with the lowermost blank in a'linemeut with the centers 5 and 6. Fig. 4 shows the mechanism adjusted'for very small blanks.

Preferably, as shown, the stop 2T lies with its uj per surface at an angle of a little less than 9()o to thc bar 16 in order that it may more effectively prevent the escape o blanks from the bottom of the magazine. When the upper surface of the stop is thus inclined, the tongues andP guideways-are arranged at anlangle which is a little less than d50) that as the bars 15 from a iiXed to Icompensate for the angularity of the stop and maintain a fixed position for the axis of the lowermost blank notwithstanding adjustments for different S1265. Each

plate

12 and 14 is provided with a depending arm 28 having a slot 29 through which extends a horizontal rod 30. This rod 30 is .carried by

levers

31, 31 which are mounted upon a horizontalv rock shaft `32. The rock shaft is mounted in

bearings

33, 33 which are formed in brackets depending from the table 3.

Secured to the rock shaft 32 is an operating Aarm 34 provided at its en-d with a roller 35. The Ymachine. is provided with a rotatable cam drum 36 having a cam plate 37 adapted to engagethe roller 35 andv swing the arm 34 downward. For swinging the arm upward the drum is provided with (a cam plate 38. y .i

During normal grinding operation the magazine mechanism is positioned substantially as indicated by dotted lines in Fig. 5. The position shown by full lines in Fig. 5 and also shown in Fig. 2 is the position .which it occupies when supplying a fresh blank to be ground. With the grinding mechanism in its normal operation the roller 35 is inl'its uppermost position. When a blank has been ground 'and has been,v discharged the roller 35 is engaged by the cam plate 37 and -is forced downward, thus serving by means of the rock shaft 32. the rod 30 and the other parts described, to swing the magazine mechanism forward to the position shown in full lines in the drawings. ln this position the lowermost blankin the magazine is in exact alinement with the centers which thereupon act to engage the blank. When the blank has been engaged by the centers the continued movement of the cam drum brings the cam plate SS'into engagement with the roller 35 whereupon the roller is moved upward, thus restoring the magazine mechanism tion showed by dotted lines in Fig. 4. As the magasine is moved backward the lowerimost blank which has been engaged bv the centers is drawn out and the other blanks slide downward to bring another blank into position to be engaged upon the nextmove ment of the magazine.

`What l claim is: l

1, ln a magazine mechanism, the combination of two blank guiding bars, bar supporting means movable to carry the bars into and out of blank supplying position, and means for adjusting the bars toward and from each other relatively to the support and for maintaining them equidistant centerline during'such adjustment.

2. ln a magazine mechanism. the combination of two pairs of blank guiding bars, two

to the normal posr.

and out of blank supplying position, and

porting means I .independent means for adjusting the bars of each pair toward and from each other relativelyto the support and for maintaining 'them equidistant from a fixed center. line during such adjustment.

In a magazine mechanism, the combination of two blank guiding bars, bar supmovable to carry the bars into and out of blank supplying position, a stop at the lower end of the blank receiving space between the bars, and means for adjusting the-bars toward and from each other relatively to the support and for moving the stop longitudinally of the blank -receiving space, the said bars and the stop being all moved simultaneously and through equal distances.

4. Ina magazine mechanism, the combination of two porting means movable to carry the bars into and out of blank supplying position, a stop carried by one of the bars at its lower end, and means whereby the bars may be adjusted towardand from eachother relatively to the support and whereby the bar .carrying the stop may be moved longitudinally.

.5. In a magazine mechanism, the combination of two blank guiding bars, bar supporting means movable to carry the bars into and out/of blank supplying position, a stop carried by one of the barsat its lower end, means whereby the bars may be adjusted toward and from each other relatively to the support and whereby the bar carrying the stop may be moved longitudinally, and means for equalizing the movement of each bar toward theother and the longitudinal movement of the stop carrying bar.

In a magazine mechanism, the combination of two blank guiding bars, bar-supporting means movable to lcarry the bars into and out of blank supplying position, a stop carried by one of the bars at its lower end, and means for adjusting the bars toward and from each other relatively tothe support at angles of approximately 450 with respect to a fixed center line and for maintaining them equidistant from the said fixed center line vduring such adjustment.

7. In a magazine mechanism, the combination of two blank guiding bars, bar supporting means movable to carry the bars into blank guiding bars, bar sup! ing plate having grooves for and out of blank supplying position, the

bars being adju-stable toward and from each otherrelatively to the support, and a lever pivoted to the support and engaging the bars tomaintain them equidistant from a fixed center line during adjustment.

8. In a magazine mechanism, the combination of two blank guiding bars, bar supporting means movable to carr7 the bars into and out of blank supplying position, the bars beingadjustab'le toward and-from each other relatively to the support at angles of approximately 45o to a fixed center line, a stop carried by one of the bars at end, and a lever pivoted to the support and engaging the bars to maintain them equidistant from said fixed center line during adjustment.

9.- In a magazine mechanism, the combination of two blank guiding bars, a movable supporting plate having a recess, two blank guiding bars carried by l able therewith into and out of blank supplying position, the bars slidably engaging the plate and being adjustable toward and from each other, and a lever pivoted to the lsupport within the' recess and engaging the bars to maintain them lequidistant from a fixed center line during adjustment.

10. In a magazine mechanism, the combination of two blank guiding bars having guiding tongues formed thereon, a supportreceiving the tongues to guide the bars for adjustment toward and from each other, the plate being movable to carry the bars into-and out of blank supplying position, and means for maintaining the bars equidistant from a fixed center line during adjustment.

ll. In a magazine mechanism, the combination of two pairs of oppositely disposed blank guiding bars, two oppositely disposed ing position, slotted armsv projecting from the plates, and an actuating rod for the plates extending through the slots and Supported independently of the armsfor oscillating movement about an axis parallel to* the pivotal axis ofthe plates.

In testimonywhereof, I hereto affix my signature. A

FRIEDERICH MLLER..

its lower.

the plate and mov- Y