US1539544A

US1539544A - Time-adjustment construction

Info

Publication number: US1539544A
Application number: US616914A
Authority: US
Inventors: Charles M Crook; Albert E Long
Original assignee: STROMBERG ELECTRIC Co
Current assignee: STROMBERG ELECTRIC Co
Priority date: 1923-02-05
Filing date: 1923-02-05
Publication date: 1925-05-26
Anticipated expiration: 1942-05-26

Description

May 26, 1925.

c. M. CROOK ET A1.

TIME ADJUSTMENT CONSTRUCTION Filed Feb. 5, 1923 Patented May 2i", 1925.

UNITED snares CHARLES M. CROOK AND STROMBEEG ELECTRIC COX SPAN MAINE.

GE CEICAGU, ILLINOIS, ASSIGNORS 'IO QrsaCA-GG, ILLINQTIS, A CORPORATION OF TIIYIE-ADJUSTIIETLTT GON-STRUCTION.

Application filed February 5, 1923.

cd no r A ljustn'ient Construction, of which the fob lowing is a Full. clear, concise. and exact description. reference being had to the accompanying drawings, Forming a part or" this specification.

Our invention relates to a time-adjustment construction for changing the time rclation between an actuating-memberand a member actuated thereby. Such a construction is useful in various locations and relations. For instance. it may be used in timecontrolled mechanism. in which it may be desirable to change the time at which a certain operation shall occur. It might. for instance. be desired to change the time at which a clock-controlled signal shall be given. or the time at which the ribbon shift in a time recorder is effected, or the length 0; time of a process or operation controlled bv a time-controlled mechanism. There are many other locations and relations where such a construction is desirable.

One of the objects of our invention is to provide an improved timeadjustment construction which will permit accurate. minute. adjustments to be readily made.

A further object of our invention is to pro ide a time-adjustment construction which will be extremely compact so that a number or" adjusting devices ma v be placed in a limited space, or so that a sina'le adjusting device may be placed in a limited space.

Further objects will appear from the detailed description to follow and from the appenoed claims.

In the drawings in which an embodiment of our invention is shown- 1 is a side elevation of a time-adjustment construction:

Fig. 2 is a plan View of the construction shown in Fig. 1;

Fig. 3 is an enlarged perspective view showing part of the time-adjustment construction;

Fig.- 4 is a section on the line 4.-4 of Fig. 2"

Serial No. 618,914.

- Fig. is a Fig. 4; and,

Fig. 6 is an enlarged View showing the relation of the cam members.

Referring now to the drawings in detail. the construction shown therein comprises in a general way. a rotatable actuating member 10. which may, if desired. be timecontrolled. a pivoted actuated member 11. actuated by the actuating-member 10, and means for changing the time relation between the actuating-member 10 and the actuated member 11 comprising a cam mem ber 12 mounted on the actuating-member 10 and a cam member 13 mounted on the actuated member 11. and co-operating with the cam member 12.

The cam member 12 is adjustable longitudinally ot the axis of the rotatable member 10. and the cam member 13 is provided with a cam edge 14. extending obliquely to the aXis o the rotatable member 10. so -that an adjustment of the cam member 12 longitudinallv of the axis of the rotatable member 10 will change the time relation between the actuating-member 10 and the ac uated member 11.

For shifting the adjustable cam member 12. a screw 15 is provided. having a threaded engagement with the cam member-12. and rotatably mounted in a frame or bracket 16. which in turn is secured to the section on the line of rota-table actuating-member 10. The cam.

be placed in any one of the circumferential series of notches 20, and a securing screw 22 then inserted through the registering openings of the

frame members

18 and 19 and the rotatable actuating-member 10, and screwed into the tapped hole in the inside frame member 19, and then tightened up to clamp the frame member or bracket, firmly in place on the actuating-member 10.

It will be noted that the bracket takes up very little room circumferentially of the r; tatable member or wheel 10. In fact, it takes up so little room, that if desired, one of the brackets could be placed in position for every one of the notches 20.

As indicated in Fig. 4, the pin 17 which secures the members of the frame together, is riveted over at its ends to securely hold the

frame members

18 and 19 together.

As best shown in Figs. 4 and 5, the screw is held against longitudinal movement in the bracket 16 by reason of the reduced portions 23 and which form journal portions mounted in cor-operating bearing portions in the

frame members

18 and 19.

In order to enable the reduc d portion to be entered into the b'earingportion inthe frame member 18, this frame member 18 has an enlarged opening adjacent the bearing portion, large enough to permit the insertion of the main threaded body portion of the screw 15, which is inserted through this large opening before the

frame members

18 and 19 are secured together. the journal portion 23 being then slipped up into the contracted or small bearing portion of the opening, where it is held in place when the parts are completely assembled. by the engagement of the pin 17 with the shittable cam member 12.

The cam member 13 mounted on the actuated member 11. may be formed as U- shaped stamping. having connecting wings or

arms

26 and 27. united by the obliquely extending cam portion 28. these

wing portions

26 and 27 being secured to the pivoted actuated member 11 by means of rivets, extending through the

wing portions

26 and 27 and through the spacing sleeves 29, which space and position the ca:v member 13 with respect to the actuated member 11. This actuated member 11 is shown as pivoted in 30 and provided witha spring 31 for returning it atter it has been actuated by the operating member 10.

The slant of the oblique cam member may be such that the advance of one side of the oblique cam edge 14- over the other side, will be equal to the pitch of the notches 9.0 on the actuating member 10; with such a slant. any desired timing of the actuated member may be secured.

In one form of our construction, the dis tance between adjacent notches is made to correspond to a 15-minute movement. In this particular form of our invention. We design the pitch of the thread on the screw 15 so that one complete turn of the screw will give a one-minute adjustment or a oneminute change in the time-relation between the actuating-member 10 and the actuated member 11, and fifteen complete turns of the screw will move the cam member 12 from one extreme of its movement to the other.

The operation and use 0'5 the timing'ad and the actuated member 11, it is onlynecessary to take a screw-driver and turn the screw in one direction or the other, to advance or retard the timing of the actuated member with respectto the actuatingemeniber.

It will be seen that we have provided a. construction in which a very accurate and minute adjustment may be readily obtained. comparable to a micrometer or Vernier adjustment in instruments of precision, and which is very compact in construction, particularly occupying very little space circumterentially of the rotatable member on which it is mounted. ,7

Having thus described our invention, wha l. we claim as new and desire to secure by United States Letters Patent, is: j

1. A time-adjustment construction comprising a rotatable actuating-member. a

rotatable member, and a screw for shifting said member.

3. A time-adjustment construction (0D1 prising a rotatable actuating-member. a member actuated thereby. and adjus ing means for changing the time relation e, tween. said members, comprising a. member shiftable longitudinally of the axis of the rotatable member. and a. screw for shifting said shiftable member, having its axis extending longitudinally of the axis of the rotatable member. 8

4. A time-adjustment construction com, prising a rotatable actuating-member. a member actuated thereby, and adjusting means for changing the time relation be tween said members, comprising a member shiftable longitudinally of the axis of the rotatable, member. and a screw for shifting said shiftable member having its axis extending longitudinally of the axis of the rotatable member, said screw and shiftable member being mounted on said rotatable member. V 7' 5. A time-adjustment construction comprising a rotatable actuating-member, a member actuated thereby, and adjusting means for changing the time relation between said members, comprising a member shiftable longitudinally of the axis of the rotatable member, and a srrew for shifting said sl 'ttable meznler, having its axis extending; longitudinally of the axis of the rotatable member, said screw having a threaded engagement with said shiftablc iucn'iber and being held against longitudinal mo .*en'ient,

6. It time-adjustment construction comprising a rotatable actuating-member, a member actuated thereby, and adjusting means for changing the time relation between said members, comprising a cam member sliiittable longitudinally of the axis of the rotatable member. a screw for shifting said cam member having its-axis extending longitudinally of the axis of the rotatable member, said screw having a threaded engagementwith said shittable member and being held against longitudinal movement. and a guide-member extending longitudinally of the axis of the rotatable member, and engaging said cam member to hold it against rotation with said screw.

7. A time-adjustment construction romprising a rotatable actuating-member, a member actuated thereby. and adjusting means for changing the time relation between said members, comprising a cam member shiftable longitudinally of the axis of the rotatable member, and a screw for shitting said shiftalole member having its axis extending longitudinally of the axis of the rotatable member, a bracket in which said screw is rotatably mounted, said rotatable member being provided with a circumferential series of notches, and said bracket be ing provided with a guide-pin for said shift able cam for holding it against rotation with said screw, said guide-pin being insertable into any one of said notches, to position said bracket on said rotatable member.

8. A time-adjustment construction comprising a rotatable actuating-member. a member actuated thereby, and adjusting means for changing the time relation between said members, comprising a cam member shittable longitudinally of the axis of the rotatable member, and a screw for shitting said shiftable member having its axis extending longitudinally of the axis of the rotatable member. a bracket in which said screw is rotatably mounted, said rotatable member being provided with a circumferential series of notches, and said bracket be ing provided with a guide-pin for said shiftable cam for holding it against rotation with said screw, said guide-pin being insertable into any one of said notches, to position said bracket on said rotatable member, and a screw to assist said pin in holding said bracket in position on said rotatable member.

9. A time-adjustment construction comprising a rotatable actuating-member, a member actuated thereby, and means for changing the time relation between said members. comprising a cam member having a cam edge extending obliquely of the axis of the rotatable member, and mounted on said actuated member, and cam means mounted for movement on said rotatable member longitudinally of its axis for co-operation with said oblique cam edge, to vary the time relation between the actuatingmember and the actuated member.

10. A time-adjustment construction comprising a rotatable member, a cam member secured to said rotatable member, a lever provided with a cam edge cooperating with said cam member and extending obliquely to the axis of the rotatable member, and a screw for moving said cam to change its position in relation to said oblique edge.

11. A time-adjustment construction comprising a rotatable actuating-member, a lever actuated thereby, and adjusting means for effecting a micrometer adjustment in the time relation between said members, comprising a shiftable cam member, and a screw for shifting said cam member.

12. A time-adjustment construction comprising a rotatable actuating-member, a member actuated thereby, and means for effecting an accurate, minute adjustment of the time relation between said members, comprising a cam member mounted on the actuated member and having a cam edge extending obliquely of the axis of the rotatable member, and a cam cooperating with said cam edge and mounted on the rotatable member and shiftablc longitudinally of the axis thereof, and a screw also mounted on said rotatable member for giving a micrometer adjustment to said shiftable cam, to vary the time relation between the actuatingmember and the actuated member.

In witness whereof, we have hereunto subscribed our names.

CHARLES M. OROOK. ALBERT E. LONG.