US1198683A

US1198683A - Mechanical movement.

Info

Publication number: US1198683A
Application number: US8604816A
Authority: US
Inventors: Alexander Ferdinand Victor
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-03-23
Filing date: 1916-03-23
Publication date: 1916-09-19
Anticipated expiration: 1933-09-19

Description

A. F. VlCTOR. MECHANICAL MOVEMENT.

APPLICATION FILED MAR. 23. I916.

, Patented Sept. 19,1916.

' ALEXANDER FERDINAND VICTOR, OF DAVENPORT, IOWA.

Specification of Letters Yatent.

MECHANICAL MO EMENT.

Patented Sept. 19,1916.

Application filed larch 23, 1916. Serial No. 86,048.

. the movement known as a Geneva movement (for roducing an intermittent movement for advancing the film through a moving picture machine. i

The object of my invention is to provide an intermittent movement-in which the driving member imparts a movement to the go driven member that has a slow beginning and a slow ending and is very fast between the same and that also exerts a greater leverageon the driven member when the stud that transmits the movement passes the imaginary line drawn through the axes of both members. This I accomplish by the means hereinafter fully described, and as particularly pointed out. in the claims.

In the drawings: Figure 1 is a longitudi- 80 nal central section through my invention. Fig. 2 is a transverse section taken on dotted line 22, Fig. 1. Figs. 3, 4 and 5 are corresponding transverse sections taken on dotted line 3--3, Fig. 1, and showing'the driving 85 and driven members of my invention in diffeient operative positions relative to each 0t er.

Referring to the drawings, A represents 9.

suitable support for the spindle a. This 40 spindle is cylindrical and one end thereof is securely fastened in said support by means.

of pins b, b, and it projects laterally there'- from a suitable distance. A sleeve B is loosely mounted on this spindle a and the end thereof next its support terminates in an integral gear C, and about midway its ends it has a disk 0 mounted thereon that is made integral therewith. This disk, on the side thereof facing gear C, has a circular flange D projecting therefrom the diameter of which is such that itv comes midway between the circumference of the sleeve and the disk.

A segment of this flange is cut away, and a stud E projects from the same side of disk 0 88 as flange D at a point outside of the circumference of said flange and in such a position that its center is intersected by an imaginary line extendin radially from the center of spindle a mi way between the ends of the cut away portion of flange D.

A suitable distance above spindle a and parallel thereto, I journal a shaft F in bearings d, which latter is journaled in a suitable stationary frame-work e. The bore of bearings d in which shaft F is journaled is eccentric, ,and the end of said bearings d terminating above gear C is provided with a circumferential flange grasped so as to turn the bearings and adjust the distance of shaft F from spindle a so as to take up the wear of the gearing connecting the sleeve and said shaft. .Shaft F has a circular head G on the end thereof extending beyond the flanged end of bearings.

d, and the width of said head opposite said bearings is provided with three equi-distant radially disposed channels H, H, H which communicate at the center of the head. The axis of head G is such a distance from the axis of spindle a that when disk 0 revolves stud E will, when said head is in proper position,.enter channel'H thereof, as shown in Fig. 3. In order to insure said head G being in its proper position for stud E to thus engage one 'of its channels, the periphery of the channeled part of the same between the mouths of said channels is concaved to provide seats K, substantially as shown inFigs.

which can be 3, 4 and 5, and seat K nearest spindle a will I be engaged by the outer circumference of from revolving, except when stud E engages the channels in the face of said head. V

. When stud E first engages one of said channels the advanced end of the segmental opening in flange D will have reached such a rotative position that said stud will start the head rotating very slowly, and when said advanced end of said segmental opening reaches and passes the imaginary line inter secting the axes of spindle a and head G the rotated movement of the head will be very fast and continue to befast until the rear end of said segmental opening comes in con-. tact with and engages the adjacent concaved side of the head, whereupon the motion of the head will slow up as the stud passes out of thesame channel to the right of the vertical plane of the axis of said head, as shown in Fig. 5 of the drawings.

flange D and said head thereby prevented I If stud E were cylindrical the sides there-[ of intersected by a transverse line drawn at movement of disk 0.

right angles to the radial line connecting its center to the center of spindle a comes in contact with the sides of the channels, and

assuming the relative position of the said stud to be that shown in Fig. 4 of the'drawings, the leverage it would exert upon the head when imparting its movement thereto would be much less than if said stud came in contact with the sides of said channels at a distance farther from the center of the head. This I accomplish by making said stud of a somewhat right angle triangular shape in cross-section, or with three sides that are practically straight or slightly convexed, substantially as shown. By means of this construction the said stud is enabled to engage the sides of the channel at a .com-

paratively greater distance from the center ofhead G and thus exert greater leverage. This is a very important feature of my invention, as experience has demonstrated that its point of contact with the sides of the channels avoids such a near approach to the center of the head as to lock .the same as some times happens when a cylindrical stud is used.

Disk 0 and head G, together with the features thereof that enable said disk to impart an intermittent movement to head G and shaft F are inclosed in a suitable metal casing J, which consists of two parts of substantially the same shape, that are suitably secured together by screws or rivets I and are supported by being mounted upon the- 0 has a balance-wheel L secured thereon, and

this balance-wheel is of greater circumference than casing J, and'has its edge M 'fianged toward and surrounds a portion of easing J, substantially as shown. The balance-wheel while not absolutely essential is desirable in order to obtain an even rotary What I claim as new is 1. 'A mechanical movement of the kind specified comprising a rotatable spindle havi part of the periphery of which is cut away,

and a stud which is triangular in cross-section and projects therefrom outside of the circumference of said ,circular member midway between the radial lines intersecting the ends of the cut away part, and a revoluble head having a plurality of radial channels adapted to be engaged by said stud and having the periphery thereof between the equi-distant mouths of said channels curved to fit the circumference of said circular member.

' 2. A mechanical movement of the kind specified comprising a rotatable spindle having a concentric 4 circular disk mounted stud projecting therefrom outside of the circumference of said circular member midway between radial lines intersecting the ends of said cut away part, a sleeve on which said disk is mounted, a revoluble head having a plurality of radial channels adapted to be engaged by said stud, and havin the periphery thereof between the equilstant mouths of the channels concaved, a shaft on which said head is mounted, a bearing in which said shaft is journaled, the bore of which is eccentric to its axis, and a suitable support in which said bearing is rotatably ad ustable.

3. A mechanical movement of the kind specified comprising a rotatable indle having a concentric circular dis mounted thereon that has a concentric circular member rojecting from one side thereof, a part of t e perip ery of which is cut away, a stud which is triangular in cross section and projects therefrom outside of the circumference of said circular member midwa between radial lines intersecting the en s of said cut away part, a sleeve on which said disk is mounted, a revoluble head having a plurality of radial channels adapted to be engaged by said stud and having the periph ery thereof between the equi-distant mouths of the channels concaved, a shaft on which said head is mounted, a bearing in which said shaft is journaled, the bore of which is eccentric to its axis, and a suitable support in which said bearing is rotatably adjustable.

4. A mechanical movement of the kind specified comprising a rotatable spindle having a concentric circular disk mounted thereon that has a concentric circular member projecting from one side thereof, a part of the periphery of which is cut away, a stud projecting therefrom'outside of the circumference of said circular member midway be tween radial lines intersecting the ends of said cut away part, a sleeve on which said disk is mounted, a revoluble head having a plurality of radial channels adapted to be engaged by said stud and having the periphery thereof between the equi-distant mouths of the channels concaved, a sleeve on which said disk is fixedly mounted, a stationary spindle upon which said sleeve is loosely mounted, a balance-wheel secured on the outer end of said sleeve, a shaft on which said head is mounted, a bearing in which said shaft is journaled the bore of which I names '3 thereon that has a concentric circular member projecting from one side thereof, a part of the periphery of which is cut away, a stud projecting therefrom outside of the circumference of said circular member midadapted to be engaged by said stud, and

having the periphery thereof between the equi-dlstant ,mouthsof the channels concaved', a shaft on which said head is mounted,

a bearing in which said shaft is journaled the bore of which is eccentric to its axis; a 15 suitable support in which said bearing is rotatably adjustable, and a casing inclosing said disk and said head and supported on said shaft andthe sleeve of said disk.

In witness whereof I have hereunto set 20 my hand this 13th day of Mareh, 1916.

' ALEXANDER FERDINAND VICTOR.

Witnesses:

FRANK D. THOMASON, .Uno CLAUSSEN;