US731915A - Mechanical movement. - Google Patents

Description

PATENTED JUNE 23, 1903.

APPLIU-ATION FILED MAB.. 2, 1903.

H0 MODEL.

x .m .WW E llwugw M M -:5:: lll. IE M tary movement by means of i men in such manner aste avoid dead-center `line 1 1 on Fig. 2.

i UNITED STATES Patented June 23, 1903.

ATENT OFFICE,

MECHANICAL MovEM ENT.

SPECIFICATION forming part of Letters Patent N o. 731,915, dated June 23, 1903.

Application filed March Z, 1903. Serial No. 145,6 78.

.To aZZ. whom it mag/concern:

Be it known that we, TosEPH KLoBoUoNIK, residing at No. 568 est Seventeenth street,

and FRANK KnoBoUcNIK, residing at N o. 574

Blue Island avenue, Chicago, in the county of Cook and State of Illinois, subjects of the Emperor of Austria-Hungary, have invented new and useful Improvements in Mechanical y Movements, of which the following is a specification, reference beinghad to the accompanying drawings, forming a part thereof.

\ This invention is designed to transmit rocranks and pitand to reduce or multiply the range of the movement without use of belts or chains or other endless transmitting means.i

It consists of the features of construction set out in the claims In the drawings, Figure 1 is a top plan showing one of the pivot-bearingsin section at the Fig. 2 is a side elevation of a mechanism embodying the features of our invention, showing another pivot-bearing broken away and in section transverse to the pivot.

In a rigid frame 1 there is journaled a shaft 2, which derives rotary motion from any i source of power,

as by belt over the pulley 3. At the opposite ends of the shaft outside the supporting-frame there are rigid with it crankwheels 6 and 7-thatis, disks having crankwrists 8 8. These crank-wrists are ninety degrees apart aboutthe axis of the shaft. On the frame there are fulcrumed on a shaft 9 parallel with the shaft 2'Walking-beams or levers 10 10a. Pitmen 11 11 connect the crank-wrists 8 Swith the corresponding ends of the leverslO 10a, such connection being made in each instance by means of a pivotpin l1", which passes through two trammelblocks 12 and 13,the former of which is mounted in theV lever and adapted to slide longitudinally therein, while the latter is guided verticallyin a guide-bar 14, mounted rigidly on the frame. The range of sliding movement ofthe trammel-block 12 is sufficient to accommodate the movement of the lever swinging about its fulcrum, as necessary to permit the pivot-pin to travel in a vertical` path when actuated by the pitman following the circular ing, respectively,

(No model.)

path of its crank-wrist. At the opposite end of the levers they are connected, respectively, by pitmen 15 15a with the crank-wrists 16 16 on the crank-wheels 17 17a, which are fast on the shaft 18 parallel with the shaft 2, journaled on the same frame. The crank-wrists 16 16 are ninety degrees apart about the axis of the shaft 18. If it is desired to have the -shaft 18 rotate in the same direction as the shaft 8, the Wrist connected with the pitman 15a will be at the opposite side of the shaft .18 from the wrist 8, connected with the corresponding pitman 11a; butif it is desired to rotate the shaft 18 in the opposite direction from the shaft 8 the corresponding wrists will be arranged in the same order about the two shafts, respectively.

The pitmen 15 15a vers- 10 10a are connected to the leby trammel-blocks 19 19a, operatin the levers and in vertical guides 20, the construction -bein g precisely the same as at the opposite end of the levers. The trammel-blocks 12 13 and 19 19a may be provided with ball or roller bearings in their guideways, respectively, if desired to reduce the friction to minimum. These guidebearings are seen in detail in Fig. 2, antifriction rolls or wheels 21 21 being journaled on the vertical trammel-blocks 13 and 19a, and antifriction-balls 22 being provided retained in proper grooves between the trammel-blocks 12 and 19 and their guideways, respectively.

The levers 10 10a are shownwith longer and shorter arms, the longer arms being connected with the actuating-pitmen 11 11a and the shorter arms connected with the pitmen 15 15, the crank distance of the wrists 16 16 being .to the distance of the wrists 8 8 in proportion to the two arms of the levers.

It will be understood that theexpedient shown for preventing dead-center in the crank movement may be utilized when the lever is operated in any manner to give the desired oscillating motion and that the utility of the device is notlimited toaconstruction in which the lever is both actuated by and actuatesV the cranks at the opposite ends respectively. The applicability of the device'both to transmit movement from the rotating crank tothe lever and from the lever or other oscillating or reciprocating element fo such crank is de- ICO signed to he shown by converting motion both ways from rotary through the oscillating and back to rotary movement.

The expedient of providing vertical and horizontal guides or trammel-blocks on the pivot-pins, which connect the pitmen to the levers, is adopted in order to accommodate the variation in the movement which would he transmitted from the crank-wrists ninety degrees apart about the guideshaft, for it will be understood that the same angular movement of two crank-wrists ninety degrees apart will not produce degree for degree the same rocking movement of the lever and that the angle through which the pitman moves about its pivot to the lever being different at the two ends of the lever would cause the two levers t-o give sli ghtly-diierent rotary action to the driven wheel if the pitmen were connected directly to the levers without the provision for vertical guidance, but that the direct vertical movement is the same notwithstanding the differences of angle above mentioned, and by confining the pivots which connect the pitmen to the levers to their vertical paths perfectly synchronous action of 'the driven wheel results from both levers.

We claiml. A device for transmitting movement, comprising a pair of parallel levers having the axes of their fulcrums coincident; two parallel shafts, each having two crank-wrists crank-wrists of one shaft to the correspondninety degrees apart; pitmen connecting the ing ends of the two levers respectively, and pitmen connecting the two crank-wrists of the other shaft to the opposite ends of the levers respectively, the pivots which connect the pitmen to the levers respectively having fixed guideways transverse to the length of the levers, and having also a range of sliding movement in the levers longitudinally with respect thereto.

2. A mechanism lfor transmitting movement, comprising a pair of levers having the axes of their fnlcrums coincident; a pair of parallel shafts having each two cranlcwrists ninety degrees apart; pitmen connecting the crank-wrists of one shaft with the corresponding ends of the two levers respectively; pitm'en connecting the crank-wrists of the other shaft with the opposite ends of the lever respectively; two trammel-blocks on the pivots which connect the pitmen to the levers respectively, one of such trammel-blocks having a guideway transverse to the length of the levers, and the other having a guideway in the lever longitudinally with respect thereto.

In testimony whereof we have hereunto set our hands, in the presence of two witnesses, at Chicago, Illinois, this 23d day of February, 1903.

JOSEPH KLOBOUCNIK. FRANK KLOBOUCNIK.

In presence of-v- CHAs. S. BURTON, FRED. G. FISCHER.

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