US767481A - Mechanical movement. - Google Patents

Description

H0 MODEL.

PATENTED AUG. 16, 1904. J. T. HOGAN.

MECHANICAL MOVEMENT.

APPLICATION FILED MAY 6. 1904.

2 SHEETSSHBET 1.

BY. I //%M 1 AITORNEYS PATENTED AUG. 16, 1904.

' J. T. HOGAN.

MECHANICAL MOVEMENT.

APPLIOATION FILED MAY 6. 1904. I

2 SHBBTS-SHEET z NO MODEL.

WVENTOR WiTNE-SSES:

UNITED STATES Patented August 16, 1904.

PATENT Orrrce.

JAMES T. HOGAN, OF JERSEY CITY, NEWV JERSEY, ASSIGNOR TO THE NATIONAL MACHINE COMPANY, OF MAMARONEOK, NEIV YORK, A

CORPORATION OF NEWV YORK.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 767,481, dated August 16, 1904.

Application filed May 6, 1904-. Serial No. 206,599. (No model.)

To a whom it ntlty concern:

Be it known that I, JAMES T. HOGAN, a citi-.

zen of the United States of America,and a resident of Jersey City, county of Hudson, State of New Jersey, have invented certain new and useful Improvements in Mechanical Movements, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

My invention relates to mechanical movements; and it consists particularly in certain improved means for transmitting reciprocatory movements and for shifting the field of the movements so transmitted without thereby varying the amplitude of such movements.

My invention also consists in certain improved means for manual adjustment of the amplitude of movements so transmitted, for manual adjustment of the extent of the fieldshifting means, and in certain improved details of construction and combination of parts, as will hereinafter more fully appear.

I will now proceed to describe a mechanical movement embodying my invention and will then point out the novel features in claims.

In the drawings, Figure 1 is a view in side elevation of a sewing-machine employing as a part of its operating mechanism a mechanical movement embodying my invention, a portionof the bed-plate of the machine being broken away in order to illustrate certain other parts. Fig. 2 is a partial top view and a view partially in horizontal section of certain of the mechanism shown in Fig. 1, the plane of section being taken substantially upon the line 2 2 of Fig. 1. Fig. 3 is a View illustrating the mechanical movement diagrammatically, showing by centers and central lines the relationship of the parts, their movements with respect to each other, and their adjustments.

In the accompanying drawings 1 have illustrated my mechanical movement as employed in connection with a buttonhole-sewing machine, the movement-transmitting means being connected with the vibrating gate commonly employed in this class of machine to carry the reciprocating needle and impart thereto lateral or jogging movements, and in the following I will describe my invention as so applied, it being understood that I by no means wish to be limited to the employment of this mechanical movement in connection only with a sewing-machine, as obviously it may be used for other purposes and in other relation, as may be desired.

As will be seen by reference to the drawings, a pitman or connecting-rod 1 constitutes movement-transmitting means connected at its forward end with the vibrating gate 2 of the sewing-machine. At its rear end the pitman is provided with an inwardly-projecting stud or roller 3, located within a channel formed by the walls of a guiding element I. The said guiding element is supported upon a reciprocating member 5, mounted for rectilinear reciprocation between guides 6 6. The guiding element is mounted upon a stud 24, screwed into the reciprocating member 5, and the said guiding element is rigidly clamped to the reciprocating member by means of a setscrew 7, which passes through a slotted lug 8 into thereciprocating member or plate 5,

whereby the two parts will be readily secured together against accidental relative movement.

Suitable reciprocating movements are imparted tothe reciprocating member 5 by means of a vibrating lever 9, pivotally mounted at 10 and provided with a lug or projection 11, engaging the cam-groove of a cam 12, suitably rotated, as by a bevel-gear connection with the driving-shaft 13. A link 1a is pivotally connected to the reciprocating member and to the said vibrating lever, so that as the lever is vibrated by operation of the cam 12 similar movements will be imparted to the reciprocating member 5. The lever 9 being pivotally mounted at 10 has an angular movement, and the said lever being slotted at the point at which the link 14 is connected thereto will impart a greater or less amplitude of movement to the reciprocating member, in accordance with the point at which the link is so connected. Manual adjustment is permitted by means of a screw 15, as shown, or any means equivalent thereto. Thus it will be seen that predetermined reciprocating movements of unvarying amplitude will be imparted to the reciprocating member during the operation of the device, but that the amplitude of these movements may be manually adjusted at will by operation of the adjusting-screw 15. The adjusting-screw 15, however, being once manually set at any position along the slot in the lever, the movements transmitted will be always of a predetermined and unvarying degree, according to whatever position it may be so adjusted. The reciprocating movements of the member 5 will then be transmitted to the vibrating gate 2 by means of the movementtransmitting means 1. The movements of the reciprocating member 5 being rectilinear, all portions of the said member will move to a uniformextent, and it will therefore follow that if the point of connection of the movementtransmitting member 1 therewith be shifted from one point to another longitudinally of the path of movement thereof the field of the reciprocating movements transmitted through the connecting-rod 1 will be varied without variation of the amplitude thereof. For the purpose of so shifting the relative position of the connecting-rod with the reciprocating member I have arranged the guiding element 4 at an angle with respect to the reciprocating member and have provided means for shifting the point of connection 3 of the connecting-rod 1 along the guiding element, such means arranged to be in no wise affected by and itself in no wise affecting the reciprocating movements of the parts. The guiding element being set at an angle, as stated, will cause the point of connection of the connecting rod with the reciprocating member to be shifted longitudinally thereof as the said portion 3 of the connecting-rod is moved from one point to another along the guiding element. A connecting-rod 16, connected to the movement-transmitting means or pitman 1 at its upper end and at its lower end pivotall y connected at 17 to a lever 18, suitably fixed to a fixed support, comprises means for shifting the end of the pitrnan along the guiding element, a cam 19,engaging a projection or cam-follower 20 upon the lever 18, imparting necessary movements to the said lever 18. A compression-spring 21, pressing its upper end against a collar upon the connecting-rod 16, serves to keep the cam-follower 20 against the cam 19.

It will be seen now that,the connecting-rod 16 extending as it does at right angles to the path of movement of the reciprocating member and its lower end being pivoted at 17,free movements of the reciprocating member are in no wise interfered with thereby. The upper end of the connecting-rod 16 will vibrate backward and forward about the axis of the pivot 17 as the center. Actually the movement of the upper end of the connecting-rod 16 will be in an are; but the length of the are is so small and the radius thereof so great that the vertical component of such movement is practically negligible. According to the form and shape of the cam 19, however, the upper end of the connecting-rod 16, and consequently the rear end of the pitman or movement-transmitting member 1, will be shifted along the guiding element 4., so as to vary the held of the reciprocating movements imparted through the movement-transmitting means, as will be clearly understood.

By manual operation of the clamping-screw 7 the guiding element 1 may be rocked upon its support, so as to vary the angle thereof with respect to the reciprocating member 5. Such adjustment will vary the extent of shifting movement imparted by a predetermined movement of the lever 18. Further, it will be seen that if the rocking center of the vibrating element be a neutral point with respect to the field of the transmitted movements the adjustment of the guiding element about such neutral point as the center will cause such adjustment to take place equally upon opposite sides of a vertical line passing through such neutral point.

The diagram Fig. 3 shows a horizontal line 22 representing the line of reciprocation of the reciprocating element 5 and a vertical line 23 passing through the point of support 2 1 of the guiding element upon the reciprocating member, and it will be clearly seen that a movement of the point 3 along the guiding element 4 to a point 25 an equal distance upon the opposite side of the center of oscillation will result in a shifting movement longitudinally with respect to the reciprocating element 5 an equal distance upon either side of the vertical line 23. The rocking of the member 4 upon its support will increase the distance to which the point 3 will be moved toward and away from the line 23 upon opposite sides thereof for any given movement along the guiding element 4:. This diagram also brings out clearly the angular movement of the vibrating lever 9, showing that thefarther away from the center of oscillation 10 the point 15 is shifted the greater will be the amplitude of movement imparted to the re ciprocating member 5.

W hat I claim is 1. In movement-transmitting mechanism, the combination with a reciprocating member and means for ii'nparting a uniform extent of reciprocation thereto throughout, of movementtransmitting means for transmitting the reciprocating movements therefrom, and means for shifting the point of connection of said movement-transmitting means with said reciprocating member, to vary the lield of movements transmitted thereby without necessarily varying the amplitude of such movements.

2. In movement-transmitting mechanism,

IIO

the combination with a reciprocating member and means for imparting rectilinear reciprocation thereto, of movement transmitting means for transmitting the reciprocating movements therefrom, and means for shifting the point of connection of said movementtransmitting means with said reciprocating member, to vary the field of movements transmitted thereby without necessarily varying the amplitude of such movements.

3. In movement-transmitting mechanism, the combination with a reciprocating member, m'cans for reciprocating same, and means for guiding the movements of said member, arranged to cause all portions of said member during its reciprocation to have substantially the same amplitude of movement, of movem ent-transmitting means for transmitting the reciprocating movements of said reciprocating member, and means for shifting the point of connection of said movement transmitting means with said reciprocating member, to vary the field of movements transmitted thereby without necessarily varying the amplitude of such movements.

4. In movement-transmitting mechanism, the combination with a reciprocating member mounted for rectilinear reciprocation, stationary guides therefor, and means for reciproeating said member, of movement-transmitting means for transmitting the reciprocating movements of said reciprocating member, and means for shifting the point of connection of said movement-transmitting means with said reciprocating member, to vary the field of movements transmitted thereby without necessarily varying the amplitude of such movements.

5. In movement-transmitting mechanism, the combination with a reciprocating member, means for imparting thereto a uniform extent of reciprocation throughout, and a guiding element rigidly secured to the said reciproeating member at an oblique angle to its path of reciprocation, of movement-transmitting means for transmitting the reciprocating movements of said member, said movementtransmitting means engaging said guiding element, and means for shifting the point of engagement of said movement-transmitting means with said guiding element.

6. In movement-transmitting mechanism, the combination with a reciprocating member, means for imparting thereto a uniform extent of reciprocation throughout, a guiding element rigidly secured to the said reciprocating member at an oblique angle to its path of reciprocation, but capable of manual angular adjustment, of movement-transmitting means for transmitting the reciprocating movements of said member, said movement-transmitting means engaging said guiding element, and means for shifting the point of engagement of said movement-transmitting means with said guiding element.

7'. In movement-transmitting mechanism, the combination with a reciprocating member, means for imparting a uniform extent of reciprocation thereto throughout, said means capable of manual adjustment whereby the amplitude of such reciprocating movements may be adjusted, of movement-transmitting means for transmitting the reciprocating movements therefrom, and means for shifting the point of connection of said movementtransmitting means with said reciprocating member, to vary the field of movements transmitted thereby without necessarily varying the amplitude of such movements.

8. In movement-transmitting mechanism, the combination with a reciprocating member, and means for imparting a uniform extent of reciprocation thereto throughout, of movement-transmitting means for transmitting the reciprocating movements therefrom, means for shifting the point of connection of said movement-transmitting means with said reciprocating member, to vary the field of movements transmitted thereby without necessarily varying the amplitude of such movements,

and means whereby the degree of variation of the said field of movements imparted upon operation of the said shifting means may be manually adjusted.

9. In movement-transmitting mechanism, the combination with a reciprocating member, means for imparting a uniform extent of reciprocation thereto throughout, said means capable of manual adjustment whereby the amplitude of such reciprocating movements may be adjusted, of movement-transmitting means for transmitting the reciprocating movements therefrom, means for shifting the point of connection of said movement-transmitting means with said reciprocating member, to vary the field of movements transmitted thereby without necessarily varying the amplitude of such movements, and means whereby the degree of variation of the said field of movements imparted upon operation of the said shifting means may be manually adjusted.

10. In movement-transmitting mechanism, the combination with a reciprocating member, and means for imparting a uniform extent of reciprocation thereto throughout, of movementtransmitting means for transmitting the reciprocating movements therefrom, said movement-transmitting means engaging said reciprocating member, a connecting-rod secured to said movement-transmitting means and extending substantially at right angles to the path of movement of said reciprocating member, and a cam and connections therewith for engaging said connecting-rod and varying the point of connection of said movementtransmitting means with said reciprocating member, to vary the field of movements transmitted thereby without necessarily varying the amplitude of such movements.

11. In movement-transmitting mechanism, niitting means, and a cam and connections the combination with a reciprocating slide, therewith for engaging said connecting-loch IO stationary horizontal guides therefor, and a substantially as set forth. guiding element rigidly secured upon said l T l T. AN; 5 slide at an oblique angle to the path of move- Y JAMLb I 10G ment thereof, of movement transmitting itnessesz means engaging said guiding element, a eon- D. HOWARD HAYWOOD,

nesting-rod secured to said movement-trans- G. F. (JARRINGTON.

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