US830162A

US830162A - Mechanical movement.

Info

Publication number: US830162A
Application number: US29205603A
Authority: US
Inventors: John Howard Mcelroy
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-10-10
Filing date: 1903-10-10
Publication date: 1906-09-04
Anticipated expiration: 1923-09-04

Description

PATENTED SEPT. 4, 1906. J. H. MOBLROY.

MECHANICAL MOVEMENT.

APPLICATION FILED 0012.10, 1903. RENEWED DBO. 16, 1905.

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PATENTED SEPT. 4, 1906.

J. H. MOELROY. MECHANICAL MOVEMENT. APPLICATION FILED 001,10, 190s. RBNEWED DBO. 1e, 1905.

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JOHN HOWARD MCELROY, OF CHICAGO, ILLINOIQ.

MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patented Sept. 4, 1906.

Application filed October 10, 1903. Renewed December 16, 1905. Serial No. 292.056x

To all wiz/mit t Hz/ty concern:

Be it known that I, JOHN HOWARD MGEL- ROY, a resident of Chicago, in the county of Oook and State of Illinois, have invented a certain new and useful Mechanical Movement, of which the following is a specification.

My invention is concerned with a novel mechanical movement by which I transform the continuous rotary movement of a shaft in one direction into the intermittent angular or rotary movement of the element to which the power is finally applied, and between the intermittent rotary movements of said element I give it a reciprocating movement transverse to the rotation thereof.

To illustrate my invention, I annex hereto two sheets of drawings, in which the same ref'- erence characters are used and designate identical parts in all the figures, of which- Figure 1 is a side elevation showing my movement mounted in a frame. Fig. 2 is a vertical section on the line A A of Fig. 1. Fig. 3 is a vertical section on the line B B of Fig. 2. Fig. 4 is a vertical section on the line O O of Fig, 2. Fig. 5 is a vertical section on the line D D of Fig. 4. Fig. 6 is a vertical section on the line E E of Fig. 4.

To support the elements of my movement, I employ a pair of frame-pieces 10 and 1 1 ,spaced apart and rigidly connected by any kind of rods or cross-pieces. Journaled in bearings 12 and 18 on the frame-pieces isthe supporting spider, preferably made of two starshaped castings 14 and 15, having the central hubs 16 and 17 whose outer reduced portions 1S and 19 form its journals. The main shaft 20 extends through the machine and is frictionally mounted in the hubs 16 and 17, by which it is supported, and the amount of friction necessary is only enough to overcome the inertia of the shaft and its attached parts. Spacing-rods 21, connecting the castings 14 and 15, are employed to give rigidity to the spider.

The elements to which the power is finally applied are the transversely-swinging plates 22, pivoted at one side to the outer ends of the spider-arms. The inner faces of the plates are provided with the ears 23, and the sleeve 24, secured on the shaft 20, is provided with a corresponding number of ears 25. Links 26, pivoted in the two sets of ears, connect the plates and hub and forni one set of members ofthe toggle-joints, the other members of which are formed by the ears 25 and associated parts. Vhen the spider is rotated intermittently through an arc varying with the number of plates employed, (the arc being seventy-two degrees where there are five plates, as shown,) the plates are held in their inner position, as shown in full lines in Fig. 3. Vhen the spider is held stationary between its alternate advances the shaft 20 is rotated in the direction of the arrow so as to swing the links 26 from the full-line to the dotted-line position. As the toggles straighten out in passing the center the plates 22 are forced out, the limit of their outward movement being shown in dotted lines in Fig. 3 and their exact position being shown in dotted lines in Fig. 1, the spider being shown in the full-line positions halfway between its positions of rest in which the plates are projected. During the alternate advances of the spider the links 26 are in the dotted-line position, and it will be apparent that the alternate projections of the plates must be produced by rotating the shaft 2O in the direction opposite to the arrow.

In the structure shown the sequence of the movements of the parts for a full cycle is as follows: The spider is advanced seventy-two degrees (carrying with it the shaft 20) and locked. dred and forty-four degrees, (projecting and withdrawing the plates during its movement.)

The spider is advanced another seventy-two degrees (carrying with it the shaft 20) and locked, and the shaft 2O is moved back one hundred and forty-four degrees, (projecting and withdrawing the plates.) The inechanism for securing this cycle of movements from a continuously-rotating shaft is as follows: The driving-shaft 27 is journaled ina bearing 28 on the frame-piece 10 and is preferably driven from the line-shaft at a reduced rate through the belt-wheel 29, ljournaled on the stud 30 and having the gearpinion 31 on its hub 32 meshing with the gear-wheel 33, secured on the shaft 27. The spider is intermittently advanced and locked by the Geneva-stop-driving members 34 and locking-faces 35, secured on the shaft 27, engaging with the five slotted and faced Geneva-stop-driven disks 86,sccured on the reduced portion 19 of the hub 17, preferably inside ofthe frame-piece 10. I produce the alternate forward and backward. movements of the shaft 2O independently of the movements of the spider by means of a modified Geneva-stop-driving mechanism which omits The shaft 20 is advanced one hun-` IOO IIO

the locking function, while retaining that of starting the driven member without jar and 'stopping it gradually, but completely, at the moment of disengagement. The modified Geneva-stop-driven disk 37, secured on the end of the shaft 20, has the five slots 38 therein on the face thereof and running together at the center, as is necessary in extending them far enough toward the center to permit of the antifriction-roller 39 on the swinging driving member 40 approaching as close to the center of the disk as is necessary in moving the disk 37 through one hundred and forty-four degrees at each swing of the member 40. The driving-lever 40 is pivoted on the stud 4l, projecting from the frame-piece 10, and is swung back and forth by the crankarm 42'on the driving-shaft 27 through the link 43, pivoted to the end of the crank-arm 42 and to the member 40 at 44.

The operation of the movement will now be readily apparent. While it can rotate in either direction, we will assume that it is rotating in the direction of the arrows in Fig. 1. In the position shown the spider is advanced just half-way to a stopping-point by the engagement of the driving member 34 with the disk 36, as seen in Fig. 4, and the shaft 20 and disk 37 are moving with the spider, the member 40 being entirely out of engagement with the latter disk. As the rotation continues the driving member 34 is disengaged from the disk 36 which is immediately locked by one of the faces 35. As soon as this has been effected the member 40, which has been 'swinging toward the disk 37, carries the roller 39 into one of the slots 33 in the disk, which has been stopped in the proper position, as the seventy-two degrees it has been moved by the spider is one-half of the one hundred and forty-four degrees it is moved by its own driving member 40. The continued forward movement of the member 40 swings the disk 37 through its one hundred and forty-four degrees, operating the plates as explained above. At the end of its movement the disk 37 is positively stopped, 'as the roller 39 fits snugly in the slot and is moving radially of the disk at the instant it is disengaged therefrom, and the disk 36 being unlocked it is advanced another seventyltwo degrees by its other driving member 34,

the spider carrying the shaft 20 and disk 37 with it. At the end of its movement it is again locked by the other face 35, and the member 40, which is now swinging backward, engages the disk 37 to rotate the shaft 20 backward one hundred and forty-four degrees to extend the plates and bring the toggles back to the starting position.

While I have shown and described my invention as embodied in the form which I at present consider best adapted to carry yout its purposes, it will be understood that it is capable of modifications and that I do not desire to be limited in the interpretationl of the following claims except as may be necessitated by the prior art. y

What I claim as new, and desire to secure by Letters Patent of the United States, is-

l. In a mechanical movement, the combination with an intermittently-rotatable support and an element carried, thereby and adapted to be moved transversely between advances of the support, of a continuouslyrotating shaft, and connections between said shaft and element comprising a swinging member adapted to reciprocate said element during its movement in either direction, and Geneva-stop mechanism interposed between said shaft and support, and shaft and member, by which they are operated alternately to (l) advance the support, (2) to swing the i member in one direction to reciprocate the element (3) to advance the support 3 and (4) to swing the member in the opposite direction to reciprocate the element.

2. In a mechanical movement, the combination with an intermittently-rotatable support and an element carried thereby and adapted to be moved transversely between advances of the support, of a continuouslyrotating shaft, two angularlyseparated Geneva-stop-driving members and acrank-arm carried by said shaft, a swinging Geneva-stopdriving member adapted to reciprocate said element during its movement in either direction, a link connecting said crank-arm and swinging member, two Geneva-stop-driven members carried by said support and engaged alternately by said driving members, one driven member always moving with the support, and connections between the other driven member and the element whereby the relative movement of the last-mentioned driven member and support reciprocates the element.

3. In a mechanical movement, the combination with an intermittently-rotatable support and an element carried thereby and adapted to be moved transversely between advances of the support, of a continuouslyrotating drivingeshaft, two Geneva-stopdrivenmechanisms carried by the support, one always moving with the support, and the other movable relative thereto, and connections between the element and said second driven member whereby the movement of the latter relative to the support reciprocates the element, and two sets of Geneva-stopdriving mechanisms driven by said shaft, and operating alternately, one moving always in one direction and advancing the support,and the other swingingback and forth and ad apted to reciprocate said element during its movement in either direction. y

4. In a mechanical movement, the combination with an intermittently-rotatable support and an element carried thereby and adapted to be moved transversely between IOO advances ot the support, of a continuouslyrotating driving-shaft, two angularly-separated Geneva-stop-driving members and a crank-arml carried by said shaft, a Genevastop disk secured to the support, a second Geneva-stop-disk concentric with the 'lirst, connections between said second disk and element adapted to reciprocate the element as the disk is swung in either direction between the advances ot the support, a swinging Geneva-stop-driving member cooperating with the second disk, and a link connecting said crank-arm and swinging member.

5. In a mechanical movement, the combination with an intermittently-rotatable support and an element carried thereby and adapted to be moved transversely between advances ot the support; of a continuouslyrotating shaft, connections between said shaft and element comprising a reciprocatable,angularly-moving driven member,whose movement in either direction while the support is at rest serves to reciprocate said element, a swinging driving member engaging and cooperating with the driven member during a portion ot its movement in either direction, and means for swingingl said driving member; and connections between said shaft and support for advancing the latter intermittently while the swinging members are out ot' engagement.

(i. In a mechanical movement, the combination wth a rotatable support, of an element carried thereby and adapted to be moved transversely between advances ofthe support, a main shaft jonrnaled in said support, a reciprocatable, angularly-moving driven memb ersecured to said shaft, connections between sai d element and member by which the movement oi' the latter in either direction independently ot the support serves toreciprocate said element, a swinging driving member engaging and cooperating with said driven member during a portion of its movement in either direction, a rotating driving-shaft having a crank-arm thereon, a link connecting said crank-arm and swinging. driving member, and connections between said driving-shaft and support i or advancing the latter while the swinging members are out of engagement.

7. In a mechanical movement, the combination with a rotatable support, of an element carried thereby and adapted to be moved transverselybetween advances of the support, a main shaft journaled in said support; a reciprocatable, angularly-moving driven member secured to said shaft, connections between said element and member by which the movement ot the latter in either direction independently ot the support serves to reciprocate said element, a swinging driving member engaging and cooperating with said driven member during a portion of its movement in either direction, a rotating driving-shaft having a crank-arm thereon, a link connecting said crank-arm and swinging driving member, and Geneva-stop connections between said driving-shaft and support for advancing the latter intermittently while the swinging members are out ot' engagement.

S. In a mechanicat movement, the combination with an interinittently-rotatable support and an element carried thereby and adapted to be moved transversely between advances ot the support of' a continuouslyrotating shaft; connections between said shait and element comprising a reciprocatable, angula'rlymoving driven member, whose movement in either direction serves to reciprocate said element, a swinging driving member engaging and cooperating with the driven member during a portion of its movement in either direction, and means for swinging said driving member and Genevastop connections between said driving-shaft and support `for advancing the latter intermittently while the swinging members are out ot' engagement.

9. In a mechanical movement, the combination with the rotatable support, themain shaft concentric therewith and carried thereby, the element mounted in the support and movable transversely of its direction of rotation, and the toggle-j oint connections between said shaft and element ot the two Genevastop-driven disks on the support and`shalit, respectively, and the two Geneva-stop-driving members cooperating therewith alternately, the one driving the support always moving in one direction, and the one driving the shaft swinging back and forth; and means Yfor giving the driving members the movements described.

10. In a mechanical movement, the combination with the rotatable support, the main shaft concentric therewith and carried thereby, the element mounted in the support and movable transversely of its direction of rotation, and the togglejoint connections between said sha'ft and element; ot the two Geneva-stop-driven disks on the support and shaft, respectively, and the two Geneva-stopdriving members cooperating therewith alternately, the one driving the support always moving in one direction, and the one driving the shaft swinging back and forth; a continuously-rotating driving-shaft operating the rotating driving member and having a crankarm thereon, and a link connecting the arm and the swinging driving member.

11. In a meclianical movement, the combination with an intermittently-rotatable support, of an element carried thereby and adapted to be moved transversely between advances ot the support, a member concentric with the support, connections between said element and member whereby the relative movement ot the member and support reciprocates said element, a contimiously-ro- IOO IIO

tating driving-shaft, a Geneva-stop-driving member on said shaft, a stop-disk rigid with the support and engaged by the driving member, and connections between said drivingshaft and irst member for moving the latter intermittently between advances of the suport. p 12. In a mechanical movement, the combination with an intermittently movable main shaft, of a support thereon, an element carried by said support and adapted to be moved transversely between movements of the shaft7 and connections between said shaft and element adapted to reciprocate the latter as theformer is moved relative to the support, I 5 a continuously-rotating driving-shaftI and driving and locking connections carried by said shafts and support and directly engaging each other so that said main shaft and support are alternately driven by said driving- 2o shaft.

' In witness whereof I hereunto subscribe my name this 8th day of October, A. D. 1903.

JOHN HOWARD MCELROYI Witnesses:

WM. H. CHAMBERLIN, MINNIE N. CHAMBERLIN.