US1080569A - Elevator mechanism. - Google Patents

Description

A. W. IZB BOEUF & J. B. ARMITAGE.

ELEVATOR MECHANISM.

APPLICATION FILED 11110.15, 1911.

Patnted Dec. 9, 1913.

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ELEVATOR MEUHANISM.

APPLICATION FILED b20215, 1911.

Patented Dec. 9, 1913.

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ELEVATOR MECHANISM.

APPLICATION FILED use. 1;), m1

Patented Dec. 9, 1913.

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A. W. LE BOEUF & J. B. ABMITAGE.

ELEVATOR MECHANISM.

APPLICATION FILED DEC. 15. m1.

Patented D609, 1913.

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ELEVATOR MECHANISM.

APPLICATION FILED DBO.15, 19114 Patented Dec. 9. 1913 5 SHEETSSHEET 5 WIT/u; (Ill 2173135. flm w 11 I 59 MW fl Wru/w/ UNITED STATES OFFICE.

ARTHUR W. LE some, OI'WOUWSOQKET, AND'JUSBPHIB. ABMITAGE, 0F PAWTUCKET, RHODZE ISLAND, AGSIGNUES T0 EIrEOTRIC GOMPOSITOR COMPANY, OF NEW YORK, N. Y.,.A'GOBPDRATION U1? NEW'JERSEY.

ELEVATOR MECHANISM.

Specification 0! Letters Patent.

Patented Dec. 9, 1913.

To all whom it may'concern:

Be it known that we, ARTHUR W. LE Bonur and J osnrn BRADLEY Amurmos, citizens of-the United States, andresidents, res ectively, of Woonsocket, in the county of rovidence and State of .Rhode Island, and Pawtucket, in the countof Providence and State of Rhode Island, ave invented a certain new and useful Improvement in Elevator Mechanism. of which the following is a full, clear, and exact description.

This invention relates to the mechanism of a line casting machine, by means of which lines of matrices are raised from the casting position upand then along a distributing rail, and are roperly presented to the distributin IIIQCEKDISID.

The 0 ject of the invention is to provide simple and durable mechanism which will properly perform these functions in such wise that the machine operator will not be obliged to await the complete distributing of one line of matrices before another line can be elevated and delivered onto and moved along the distributing rail.

The invention in its preferred form is shown in the accompanying drawings and is hereafter described in detail, and the construction and combination of parts which constitute the invention are defined by the appended claims.

In the drawing, Figure 1 is a front elevation of so much of a linoty, e machine as shows the visible parts thereof which are involved in the present invention. Fig. 2 is a rear view of the auxiliary line carrier and some associated mechanism. Fig. 3 is a sectional side elevation in the plane of the bent line D- D on Fig. 1. 4 is a full sized rear view of the operating mechanism for the elevator and line carriers when the rear cover of the inclosing' casing has been removed. Fig. 5 is a sectional side elevation in the plane indicated by line B-B on Fig. 6. Fig. 6 isa .plan view of the operating mechanism in said casing,-.the' casing being sectioned in the plane indicated by line C-C on Fig. 4. Fig. 7 is a sectional plan in the plane indicated by line A-A on Fig. 4..

Referring to the parts by numerals, 1 represents the elevator which ismovable vertically on two vertical rods, 2, 2, as guides. The elevator is .provided with a shelf 3 adapted to support a line of matrices. The elevator s connected with one leg of an endless chain belt 11, which runs over an upper driving sprocket 76 and a lower idler sprocket 13. When the elevator is in its uppermost position its shelf 3 is alined with and in substantial contact with the left end of the distributing rail 16 which is near the top of. the machine.

The line carrier slide 4 is movable horizontally in guideways just behind the horizontal distributing rail 16. It is connected with the upper leg of an endless sprocket, chain 12 which runs around a driving sprocket 95 at its left end and around a suitable idler sprocket at its right end, which idler sprocket is not shown. The line carrier slide has on its front side a yielding pressure plate 5 which extends over the distributing rail, so as to be able to engage with a matrix line thereon.

So much of the mechanism as has been described is old in a variety of arts. Much of the mechanism to be described is inclosed in a case 30 fixed to the upper left hand corner of the machine frame, which case has a removable rear cover 31.

The drivin clutch 35 has on its front face, within t e case 30, the ratchet clutch jaws 35", and it has also a rearwardly extended cylindrical art 35 which is rotatably mounted in a caring in the case. The driving pulley 34 is fixed to the rear end of this cylindrical part. A starting clutch shaft 41 is alined with the driving clutch, being mounted at its front end in the casing and at the rear end in the end of the driving clutch.

The starting clutch 40 is a sleeve which has a feather and groove connection with the. starting clutch shaft 41; and it has ratchet jaws 4.0 for engagement with the ratchet jaws 35 of the driving clutch, and peripheral gear teeth 40". A spring 43 acts, when permitted so to do, to move the clutch member 40 endwise on the shaft 41 so as to cause the interlocking engagement of the vrm.

jaws 40 and the jaws 35 This clutching movement of the clutch member 40 is prevented by the engagement of a sp ral cam surface 40 on said clutch member 40 with a pin'45 whichis carried by one arm 44* of a three arm lever 44. Another arm 44 of this lever has a toe 44 which is provided to go into a'notch 47 in a disk 47 fixed to the cam shaft 56. The third arm 44 of this lever lies beneath a rearwardly extended arm of the starting rod lever 49. This lever has a sleeve 49 by means of which it is pivoted to fixed bracket arms 30". It is by pushing upward on the forwardly extended arm of the lever 49 that the mechanism is set in operation. A long downwardly extended starting rod '48 is pivotedto front arm of said lever 49; and its lower end may be fixed to mechanism for moving it up- Ward; or the operator may take hold of it and move it upward when desired. The resultant movement of the lever 49 will cause the rearwardly extended arm thereof to rock the starting lever 44 and thereby (1) withdraw pin 45 from its engagement with the cam surface 40 on the clutch member 40, whereupon the spring 43- will move said clutch member along shaft 41, and cause it to interlock with the clutch member 35; (2) will also withdraw toe 44 from the notch 47 indisk 47. The engagement of the two clutch members 35 and 40 will cause the shaft 41 .to begin to rotate, and will permit the cam shaft 56 to be rotated by the mechanism to be described, intermediate of it and the starting clutch-shaft 41.

The elevator shaft 65 is mounted in bearings near the top of the case, and it has secured to its front end an elevator driving sprocket 76. In the particular construction shown, this drivingv sprocket loosely em-- braces a sleeve 77 which is keyed to the shaft '65, and lies'between a flange 77 on sleeve77 and a friction disk78. A spring disk 79 which embraces the shaftand bears against the disk 78 is put under the'proper I tension by means of a nut 80, which screws onto the end of shaft 65 and thrusts a- .Washer 81 against said spring disk 79. This frictional connection between the sprocket 76 and elevatordriving shaft 65 is a safety expedient which. will permit some rotation 2' of shaft 65 independently ofthe sprocket in case anything shouldpositive'ly obstruct the -1novement of those parts which thesprocket is intended to move. Embracing this elevator shaft 65, but disconnected therefrom r are twogears 66, 67. The latter is' always 64 which is adapted to-engage a conical recess in the adjacent face of the gear 67. On the other end of the sleeve 64 are cldtch jaws 64 which are adapted to engage with clutch jaws 66 on the adjacent end of the gear 66. It is obvious that when the shaft 41 is rotating, both gears 66, 67, on the elevator shaft must also rotate, but in opposite directions, but the elevator shaft does not turn until by the movement of the elevator clutch sleeve 64, one or the other of the gears 66, 67 is clutched to the. elevator shaft 65.

In order to move the elevator clutch 64, a fork lever 69 is provided, which lever is pivoted'on a vertical pivot within the case. It has at its ends a swiveled fork 68 which engages the circumferential groove 64 in the elevator clutch 64. It also carries a friction roller 69 which engages a face cam 72 on the ear 72 which is fixed to the cam shaft 56. 3 spring 71 acts on this lever to hold the roller in contact with said cam. This lever 69 has also the function of withdrawing the elevator latch 82 This latch is a plunger sliding through a suitable hole in the casing wall. A. spring 83 resists its backward movement and also moves it forward beneath the shoulder on the elevator, when the elevator, in going up, has engaged the beveled end of said latch plunger and pushed it back. This latch carr'ies an upwardly projecting pin 85 which goes loosely into a hole in the lever 69, so that said lever, by its movement. rearward, may withdraw the latch. The pin; 85 is, as a matter of construction, fixed to a block 85 which slides looselyon the stem 83, being held upon said stem by the head 85.

v The cam shaft 56, before referred to, carriesthree cams,,viz the face cam 7 2 which and it also carries the notcheddis'k47 be-' "is on' the side of a large gear ,72 which is fore referred to. .The gear 72 meshes. with I,

an intermediate pinion 58, which is'rigidly connected with an intermediate. gear 57 which is rotatably mounted on the fixed stub shaft 59. I The gear 57 isin mesh with a pinion 41. carried by the clutch shaft 41.

The cam 86 is for the immediate purpose of moving the segment frame 87-which isloosely hung on theelevator [shaft 65. This frame carries afriction roller 87 adapted to be engaged by the cam 86. A spring 88 acts toswmg thesegment'in the opposite direction to that in which the cam moves it.

The gear teeth on this segment frame engages ag'pinion 92 which is fixed to gear 93,

said gear and pinion being rotatably mounted .on a shaft 99. The gear 93 is in mesh with a pinion 94 on the line carrier driving shaft 96 to, which the line carrier driving sprocket 95 is fixed. The line carrier sprocket chain 12 runs over this sprocket and over another sprocket which is not shown, to the right thereof, and, as before stated, the line carrier slide is fixed to the parting its movement to the slide.

upper leg of this sprocket chain. Theother cam 108 is for operating the auxiliary line carrier. Thiscam engages with a friction roller on the auxiliary :line cam :lever 109; and a spring 110 acting-on the lever, moves it in the.oppositeudirection. A link 111 connects this lever 109 "with another lever 112,, which is connected by a link 113 with the auxiliary line carrier, and particularly with a slide 20 which forms a part thereof.

Whenever the elevator rises, carrying with it a line of matrices, this line is swept off the elevator onto the distributing rail by. the line carrier, and along said rail until the foremost matrix in a line comes against a stop 115, which is a part of the distributing mechanism. This distributing mechanism, although no part of the present invention, includes means by which the matrix at the right end of the line is segregated from the line and sent along to its appropriate magazine. The line carrier being spring-actuated will .move the line to the right whenever the right end matrix is removed so that the next matrix will come against said stop and be in a position to be ,segregated. But it frequently happens that before this line has been entirely distributed, another assembled line of matrices will have been put onto the elevator in readiness to be taken up to the distributing rail. In order that the distribution of the matrix line may be continued, while the line carrier goes to the left in order to bein the proper position when the elevator comes up, the auxiliary line carrier referred to is provided. This includes a slide 21, which is movable in a suitable horizontal guideway below the distributing rail. The sliding bar 20, before mentioned as connected by link 113, wit-h lever 112, is supported on the slide in such wise that it is permitted to move horizon-' tally a limited distance only, before im- It has a horizontal slot 20 through which projects a stud 21 fixed to the slide, and it has also a stud 20 which projects through a horizontal slot 21 in the slide. The right end of the link 113 is pivotally connected with the rear side of the sliding bar 20.

Pivoted to the front side of the slide are two parallel links 22, 23, to the right ends of which are pivotally connected the auxiliary line carrier push bar 24. This projects upward and pasms into and may pass through a vertical slot 16 in the distributing rail 16. The upper of the two parallel links has at its left end a downwardly extended finger 22 adapted to be engaged by the head of a stud 20 which as stated is fixed to the sliding bar 20. A spring 25 acting upon the upper link 22 tends to swing it so as to carry the auxiliary line carrier push bar 24 up through the slot in the distributing rail and behind a line of matrices thereon. But

when the sliding bar is moved to the left, the head of stud 20 will strike the :finger 22 of the :upper link 22 and so rock it as to draw the auxiliary line carrier push her 24 down below the top of the distributingrail. Whemthe sliding bar is moved to the right, it carries the head of stud 20 out of engagement with said 'finger, whereupon the spring 25 rocking the link 22 will carry the push bar 24 up so that its upper end is above the top of the distributing rail, .so that it may engage with a matrix resting upon said rail. The power to rock lever 109 in the direction which carries the auxiliary line carrier to the left comes from the cam 108 which, as stated, engages said lever 109 and swings it. When this cam has, through the described mechanism, moved said auxiliary line carrier mechanism to the left, the cam releases its engagement with said lever, whereupon a spring 115 moves the lever in the contrary direction. The spring 27 is fixed to the auxiliary line carrier slide, and by pressing against the adjacent fixed frame member, acts as a brake or drag which makes it certain that said slide shall not move until after the sliding bar 20 has moved relatively to said slide, as before ex plained.

The described mechanism operates as fol- 9 .87, and therefore this frame, under the influence of the spring 88 is, through the train of mechanism described, acting on the line carrier, to move it to the right, and thereby keep the matrix line moving along the distributing rail toward the distributing mechanism. The cam 108 is. however, acting upon lever 109, and holding it and the auxiliary line carrier mechanism at the extreme left ends of their paths.

The mechanism is at rest because the pin 45 is engaged by the high part of the spiral cam surface 40 on the starting clutch. whereby said starting clutch is held out of engagement with the driving clutch. \Vhcn, now, the operator gives the upward movement of the starting rod 48 and, consequently, rocks the lever 49, this latter lever will rock the three armed lever 44, thereby releasing the cam shaft from restraint, and (2) withdrawing pin 45 from engagement with the spiral cam 40", which permits the starting clutch 40 to be moved by its spring 43 into clutching engagement with the driving clutch 35. The shaft 41 is thereby caused to rotate, and it, through the described train of mechanism, rotates the cam shaft, which thereafter continues to turn until it has made one complete revolution. At the end of that time the toe 44 will drop into notch 47; and, as the result of rocking of lever 44, the pin 45 will move into the path of the spiral cam 40, which cam, by

a. aoeaeee its engagement with said pin, causes the starting clutch 40 to move away from and out of engagement with the driving clutch 35. This disconnects the mechanism from the source of power, so that it will be disposed to stop; and the engagement of the rear end of notch 47 with the toe 44 causes the cam shaft to stop in exactly the right position.

While the cam shaft is in rotation it produces the following results: lit, first, turns cam 108 so as to release the auxiliary line carrier from restraint. Thereupon the auxiliary line carrier spring 112, acting through the described train of mechanism, causes such a movement'of the auxiliary line carrier to the right, as will cause its push bar 24 to move into contact with the left matrix on the distributing rail,'and will thereafter continue to move the matrix line in the distributing direction until the auxiliary line carrier is again drawn to the left by said cam 108. It will be understood that the power to move the auxiliary line carrier mechanism to the right is applied to the sliding bar 20, which first moves a short distance independently of the slide. -By so moving, it releases the upper link 22 from restraint, and the spring 25v causes said link to so swing as to carry the auxiliary line carrier push bar 24 up through the slot in the distributing rail into operative position. This being accomplished, a further movement of the sliding bar to the right will cause a corresponding movement of the slide, and all the parts supported thereon. As the camshaft rotates, the cam 72 will move the elevator clutch lever so as to carry the elevator clutch forward into engagement with the jaws of the gear 66, whereupon the elevator shaft will begin to rotate clockwise (when viewed from the front) and theelevator will begin to rise. At about the same time the cam 86 will begin to act' on the s ag ment frame 87, and to swing itin such'wise that the line carrier mechanism is drawn to the left until its pressure plat/e5 is at the left of the path in which the elevator movesupward. Just before the elevator reaches the top of its path a shoulder 1f thereon will engage the plunger latch- 82 and push it back, and then said latch will fly forward under said shoulder and temporarily act to hold the elevator up andin exactly the proper position relative to the distributing rail 16, when the elevator is settled backso as to rest upon said plunger latch. When the elevator has passed the plunger latch in its upward movement the cam 72 will have come to such position that the clutch leverwill be moved to carry the elevator clutch into intermediate position, whereupon the elevator shaft stops its rotation. This condition of the mechanism is maintained while cam 86 backs off from the segment 87 and allows the spring 88 to so swing it as to move the line carrier to the right. By this movement the" line carrier will sweep the matrix line from the elevator onto the distributing rail and along said rail to the distributing mechanism. Thereafter the cam 72 by its advance allows the elevator clutch lever to be moved by its spring so as to move the elevator clutch rearward into clutching engagement with the gear 67. This move-v mentof theclutch operating lever withdraws the latching plunger; whereupon the elevator clutch shaft begins to rotate counter clockwise and moves the elevator, down. As the elevator is reaching its down position the cam 72* will move the clutch operating lever *69 so as to carry the elevator clutch into its neutral position which'causes the elevator shaft to cease rotation. lathe meantime cam 108 has moved'th'e auxiliarv line carrier mechanism to the left; that is to its initial'position. When these results have been accomplished the cam shaft will be near the end of its single revolution; the toe 44 will drop into notch 47, the pin 45 will move into position to be engaged by the spiral cam 40, and this engagement will cause the endwise movement of the starting clutch and disconnect it from the driving clutch. The mechanism having performed its functions will now come to rest.

A bracket 43 is fixed to the auxiliary line carrier slide 21 and extends upward and has pivoted to its upper end on a horizontal rearwardly extended pivot the arm 42, which arm is under the influence of, a spring 44 tending to rock it to carry its right end downward as far as it,can go'until a rearwardly'extended tail piece 47 'engagesa stop pin 46 fixed to the bracket 43. This arm 42 will, when the auxiliary line carrier is in operation, engage the upper part: of the leftend matrix in theline, and will keep it from falling over. In fact, this arm 42 cooperates with the auxiliary line carrier 24 in pushing thematrix-line along the dis tributing rail. When amatrix line is being moved by the line-carrier pastthe auxiliary line carrier mechanism, the upper edges of the matrix will, by engaging the arm 42, lift it so that they may pass beneath it.

Having described our invention, we claim 1. In aline casting machine, the combination of a vertically movable elevator which is provided with a support for a matrix line, an elevated support which is adapted to guide a line of matrices toward the distributing mechanism, and which the elevator support will be alined with when the elevator is raised, a horizontally movable line carrier adapted to sweep the matrix line from the elevator support onto and movable auxiliaryline carrier, springs for iindependently moving said line carriers in 1% noeoasco the matrix distributin direction, and means for moving them in the contrary direction, substantially as specified.

2. In a line casting machine, the combination of a vertically movable elevator which is provided with a support for a matrix line, an elevated support which is adapted to guide a line of matrices toward the distributing mechanism and which the el-eva tor support will be alined with when the elevator is raised, a horizontally movable line carrier adapted to sweep the matrix line from the elevator support onto and along the elevated support, a horizontally movable auxiliary line carrier, springs for moving said line carrlers in the matrix distributing direction, cams for respectively moving said line carriers in the contrary direction, driving mechanism which includes a clutch for turning said cams, means for causing said clutch to close, and a cam turning with the other cams for opening said clutch.

3. In a line casting machine, an auxiliary line carrier comprising a slide movable in horizontal g-i'iide'ways, a sliding bar sup ported by and having a limited horizontal movement on said slide, mechanism connected with the said sliding batr for moving the, auxiliary line carrier back-and forth, a push arm movahly connected with said'slide and adapted to project into the path which a, line of matrices must travel in going to the, distributing mechanism, a spring normallyl holding said arm in operative position, and means operated by the slidingbar for drawing said arm to an inoperative position.

4. In a line casting machine, an auxiliary line carrier comprising a slide movable in horizontal guideways, a sliding bar supported by and havin a limited horizontal movement on said 5 ide, mechanism connected with the said sliding bar for'moving the auxiliary line carrier back and forth, two parallel links pivoted to said slide, one being provided with an angle arm, a line carrier push bar pivotally connected to the free ends of said parallel links, a spring acting to swing said links in a direction which carries the push bar to an operative position, anda shoulder fixed to the sliding bar and adapted to engage the angle arm of one of said links whereby the same may be rocked to draw the push bar to an inoperative position.

5. In a line casting machine, an auxiliary line carrier comprising a slide movable in horizontal guideways, a sliding bar supported by and having a limited horizontal movement on said slide, mechanism connected with the said sliding bar for moving the auxiliary line carrier back and forth, two parallel links pivoted to said slide, one being provided with an angle arm, a line carrier push bar pivotally connected to the free ends of said parallel links, a spring acting to swing said links in a direction which carries the push bar 'to an operative position, and a shoulder fixed to the sliding bar and adapted to engage the angle arm of one of said links whereby the same may be rocked to draw the push bar to an inoperative position, a cam engaging a part of the mechanism which is connected with said sliding bar whereby the auxiliary line carrier may be retracted, and a spring acting uponsaid mechanism for moving the auxiliary line carrier in the contrary direction.

6. In a line casting machine having a substantially horizontal support on which a matrix line may move toward the distributing mechanism, an auxiliary line carrier comprising a slide, a push bar movably connected therewith, a spring for moving said push bar to carry its end into the path the matrices may travel while moving along said support, a bracket fixed to the auxiliary line carrier slide, a spring actuated arm pivoted thereto and normally lying in such a position that its end projects into the path in which the upper part of the matrix line must move, a spring for moving the auxiliary line carrier in the matrix distributing direction, and means including a cam for moving it in the contrary direction.

7. In a line casting machine, the combination of a vertically movable elevator, a rotatable elevator shaft, mechanism operated thereby for moving the elevator, mechanisms for turning said elevator shaft in opposite directions, a clutch for connecting said elevator shaft with either of said turning mechanisms, a horizontally movable line carrier for sweepingthe matrix line from the'elevator onto and along a support for said matrix lines, a cam shaft, a cam th' eon for actuating the line carrier in one di rection, a spring for actuating it in the contrary direction, a cam on said cam shaft for operating said elevator clutch, a spring latch adapted to engage the elevator to temporarily hold it in its elevated position, and mechanism operated by said clutch operating mechanism for witlnlrawing said latch.

8. In a line casting machine, the combination of a rotating driving member, a rotatable starting shaft, a clutch for connecting said starting shaft and driving member, an elevator shaft, two trains of mechanism intermediate of said starting shaft and elevator shaft whereby the latter may be turned in reverse directions, a clutch for connecting either train of mechanism with the elevator shaft, a spring actuating said starting clutch in the clutching direction, a starting lever normally restraining the clutch movement of said starting clutch, a cam shaft, power transmitting mechanism intermediate of the starting shaft and the cam shaft, a cam on the cam shaft, mechanism operated thcrebv for moving the elevat/or clutch, and mecha carried by said shaft adapted to control the return or starting lever to its normal position in which it holds the starting clutch out of action.

9. In a line casting machine, the combination of a rotating 'drivlng member, a rotatable starting shaft, a clutch for connecting said starting shaft, and driving member, an

elevator shaft, two trains of mechanism incam shaft, mechanism operated thereby for moving the elevator clutch, mechanism carried by said camshaft adapted to control the return" of the starting lever to its normal position in which it holds the starting clutch out of action, a line carri r, a earn on said cam shaft lo which the line carrier is moved in one direction, and a tor itera es moving the line carrier in the contrary di' rection.

10. in a line casting'rnachine, the coinhination of a vertically movable elevator, :3 elevator shaft, two trains of mechani I adapted to turn said elevator shaft in re verse directions, a clutch for connecting said; elevator'shaft with either train of mechanism, a cam shaft, clutch operating mechanism, a cam on the cam 'shatt for actuating said clutch operating mechanism, a line carrier, .a sprocket chain with which the line carrier 18 connected, a driving sprocket, a-

rotatahle shaft to 1 which the driving sprocket is secured, a swinging spring-actuated gear segment, a cam fixed to said cam shaft tormoving the same in oppositionto its spring, and a train of gears intermediate of said segment gear and of said sprocket shaft.

In testimony whereof, we hereunto afiix our signatures in the presence of two witnesses.

ARTHUR w. anaemia JOSEPH n. AJRMITAGE.

Witnesses:

' GUY L. HAMMOND, R03? d, Sarina,

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