US441112A - Mechanical movement - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

- 0. D. SIGSBEE.

MECHANICAL MOVEMENT.

Patented Nov. 18., 1890.

1.1V VEJV TOR WITNESSES TN: mom-us nuns cm, PHOTO-Unio wAsMmorcu, a c,

' UNITED STATES FFICE.

ATENT MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 441,112, dated November 18, 1890.

Application filed March 10, 1890. Serial No. 343,429. (No model.) I

To all whom, it may concern:

Be it known that I, CHAnLEs DWIGHT SIGS- BEE, a citizen of the United States, residing at Annapolis, in the county of Anne Arundel and State of Maryland, have invented certain new and useful Improvements in Mechanical Movements; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it'appertains to make and use the same.

My invention consists of the mechanical movement hereinafter to be more particularly described and claimed.

In the drawings,Figure 1 is a plan View of one form of apparatus employed in operating my mechanical movement. Fig. 2 is a section on the line 00 w of Fig. 1. Figs. 3 and 4: are plan views showing different adaptations of my mechanical movement to the steering of ships. Figs. 5 and 6 are diagrams explanatory of the movement, as embodied in Figs. 3 and 4, respectively. Figs 7, 8, 9, and 10 are supplementary diagrams showing different arrangements of my mechanical movement to illustrate more fully the scope of my invention.

In the several figures like parts are designated by the same letters and numerals.

In many classes of machinessuch as typewriters, type casting and setting machines, &cit is necessary to bring a large number of parts consecutively over or underneath the same fixed point. To accomplish this by mechanism which shall be simple, accurate in its movements, and of such a nature that the movements of its various parts can be readily calculated, I have designed the apparatus in the form illustrated in Figs. 1 and 2.

To still further explain the importance of my invention, not only in respect to its accuracy of registering, but in respect to the transmission of power in different directions with certainty and rigidity of movement, I have designed two applications of the principle to ship-steering mechanism, as illustrated in Figs. 3 and 4.

A is a reciprocating plate moving in suitable guides A A, its motion being controlled by the pitman B and pin B with any suitable motive power. In guides a a, preferably at? right angles to the guides A A ,move the reciprocating pieces 0 O, terminating in the branching or spreading arms D D, set at any suitable angle to each other and the reciprocating rods 0 C, but preferably at ninety degrees and forty-five degrees, respectively, as shown, and provided with suitable guides E E for retaining and controlling the third piece F. The third moving piece F, having its two bearing-edges formed at the same angle of mutual inclination as the bearingedges of the branching parts D D, is fitted to the guides E E by the dovetails Gr G, re spectively, in such manner as to admit of sliding contact between corresponding edges. It is evident that so long as the reciprocating pieces 0 O are held at rest the piece F will be rigidly immovable in its guide atof the sliding pieces 0 C, or by said movement conjointly with a forward or backward movement of the other sliding piece, any point of the third piece F may be brought to an infinite number of positions within certain limits. It, therefore, the piece or plate F has a number of type or of matrices, as W, R, O, J, Y, &c., set therein, as indicated in Fig. 1, it will be possible, as is evident, to bring any one of the type or matrices under or over a fixed point Y, at which a plunger, press, hammer, or other operating-piece may be placed to press down or imprint the type or matrix so brought to the fixed point.

A great many Ways for operating the sliding pieces 0 0 may of course be designed. In the apparatus that I have illustrated the reciprocating plate A has a set of cam-grooves I, 2, 3 to 9, into which are meshed pins 1, 2, 3, to 9 of the sliding piece 0 and 1, 2, 3, to 9 of the sliding piece 0, whereby a definite motion is given to one or both of the sliding pieces 0 0, according to which groove or grooves control the motion of the.

sliding pieces through the meshing therewith of the corresponding pin or pins of said slides. It is evident, of course, that the plate A may be replaced by a cylinder or a sector thereof without affecting the character of the motion given the sliding pieces, and that otherarrangements ofcamgrooves to suit the necessity of any particular case can be arranged. The method of operation of my invention is therefore clear. For example, when the sliding pieces 0 C are both in their original posidrawings but one groove is provided for each pin and its opposite pin, as 1 1. In Fig. 1

the full lines show the plate moved to theright beyond the ordinarily effective part of its stroke. The pins 5 5 are meshed in the straight groove 5, and no movement of the slides C C will result; but by dotted lines in said figure the pin 9 is shown at 9 pressed down and engaging the groove 9 whereby the slide 0 has been moved backward until the arm D is at D 2 and has carried the piece F along the opposite arm D a distance J to 0, corresponding to the backward movement of the slide 0. Furthermore, the pin 3 is shown at 3 pressed down and engaging the groove 3, whereby the slide 0 has moved forward until the arm D is at D and'has carried the piece F along the opposite arm D a distance 0 to Y corresponding to the forward movement of the slide 0. The combined movements of the slides C C have therefore resulted in moving the piece F to F and the point-J to the point Y, and it is evident if the appropriate relations have been established in designing the placement of the pins, the grooves, and the types or matrices that by an operation similar to that which has been described any type, matrix, or point of the piece F, as J, may be brought to any point Y to further operate or be operated upon, as may be desired.

It should be understood that certain changes in the construction of my invention may be made without in any way affecting the essence of said invention. The sliding joints between the pieces or arms D D maybe formed differently arranged-for instance, the pins in any way so long as the adaptability to simultaneous movement along both arms is maintained. The piece or plate F may be given any shape consistent with said purpose. The pieces 0 C may be operated by any other means than the plate A, and they may be placed on opposite sides of the piece F, as in Figs. 7 and 9, or converging, as in Fig. 10. The arms may be reversed with respect to the pieces C O, as shown in Fig. 8, or but one arm may be reversed, as in Fig.7. 'In the reciprocating plate A the arrangement of the cam-grooves may be varied-for example, they may be made symmetrical with respect to that center line of the plate A which is transverse to their general direction, by which means each stroke of the plate A will produce a forward and backward stroke of the pieces The pins 1 2, 850., 1 2, &c., maybe of one series may alternate with the pins of the other series-so that the pins of one ofthe pieces 0 O'shall be opposite the intervals between the pins of the other piece. The number of grooves may be increased so as to have a cam-groove for each pin of both series, or

with the grooves increased in number the whole series of pins on one of the pieces 0 C may be placed in advance of the series on the other piece, 850.

The advantages of my invention consist in the fewness of its parts and joints, the directness and certainty of its motion, and the ease with which the movement of the piece or plate F may be calculated for any given movement of the pieces 0 C, also in the wide range of its application-as, for instance, to the steering of ships. Thus in Figs. 3 and 4 the piece F is shown connected to the tiller K of the rudder-head L by means of the pin M, moving in the slot N. The lugs P P, attached to the pieces C O, are provided with interior screw-threads-right and lefthanded, respectively-to engage and traverse the corresponding right and left handed screws Q Q of the standing screw-shaft q. The said screw-shaft is operated by the wheel I), or it may be clutched to the shaft ofan engine. The rods 0 0 travel in the guides or a.

The operation of my invention is shown by the dotted lines of Figs. 3 and 4:, supplemented by the diagrams, Figs. 5 and 6. In Fig. 4 the screw-shaft having each thread uninterrupted, the rotation of the Wheel b advances one of the lugs P P and withdraws the other simultaneously. A reverse rotation of the wheel reverses the movement of both lugs. The dotted lines show the lug P advanced to P the arm D to D the lug P withdrawn to P and the arm D to D while the piece F has been shifted thereby to F bearing the tiller K to K at an angle of forty-five degrees with -its original position. In Fig. 3 it is designed that one of the lugs P P shall remain fixed, while the other has a reciprocating movement along its corresponding part of the screw-thread Q or Q. To effect this purpose the threads Q Q are interrupted in that portion shown as occupiedby P and P and in such a relation that when one of the lugs P P is nearly on the point of leaving its thread, as at P, the pin cl d on the corresponding piece 0 G engages one arm of the lever e, pivoted to the piece a, and presses the opposite arm of said lever against the pin cl d of the other piece 0 0, thereby advancing that other piece 0 C and engaging its lug in turn with the thread of the screw-shaft. The dot-ted lines of Fig. 3 show the lug P advanced to P the arm D to D while the lug P and the piece 0 are at rest. The piece F has advanced and shifted to F carrying the tiller K to K at an angle of forty-five degrees with its original position.

Having therefore described my invention, WhatI claim as new, and desire to protect by Letters Patent, is-- 1. In a mechanical movement, thecombination of the two branching reciprocating pieces and the third piece attached to the two firstmentioned pieces by sliding joints and adapted to simultaneous motion along both joints, substantially as described.

2. In a mechanical movement, the combination of the two branching reciprocating pieces and the third piece attached to the two firstmentioned pieces by sliding joints and adapted to simultaneous motion along both joints, together with the grooved plate and the pins engaging with said grooves, whereby the motions of the branching reciprocating pieces are controlled, substantially as described.

3. Inamechanical movement, thecombina- CHARLES DWIGHT SIGSBEE. -Witnesses:

M. HENDGER, CHARLES HEMJE.

Images