USRE12844E - Drive-chain - Google Patents

Description

No. 12,844. REISSUBD AUG. 18, 1908. E. P. MORSE.

DRIVE CHAIN.

APPLICATION FILED JUNE 30, 1908.

4 SHEETSSHBET l.

No. 12,844. I REISSUED AUG. 18, 1908. E. FKMORSE.

DRIVE CHAIN.

APPLICATION FILED JUNE so, 1908.

4 SHEETSSHEET 2,

Miizesses: [aw/1 for:

,5 8, 453 794 M Z Zflm gg If No. 12,844. REISSUED AUG. 18, 1908.

- E- F. MORSE.

DRIVE CHAIN.

APPLIOATION FILED JUNE so, 1902.

- 4 SHEETBSHZIET a,

No; 12,844. REISSUED AUG. 18, 1903;

I E. F. MORSE.

DRIVE CHAIN.

APPLICATION FILED JUNE so, 1908.

4 SHEETS-SHEET and wherein eaehof the plates of one link i turns therewith freely on the other part of the bearing angles to the length ofthe links, any slipping Chains, of which the following .is a speciiiclass wherein the pintle consists of two parts plates with which it engages, the holes in the inks sustaining the seatpin being made to UNIT D sTArrns PATENT orrron EVERETT F. MORSE, OF TRUMANSBURG, NEW YORK,- A S SIGNOR TO MORSE CHAIN COMPANY, 1 OF TRUMANSBURG, NEW YORK DRIVE-CHAIN.

' :1 Original No. 757,762, dated April 19, 1904, Serial No. Serial No.

T 0 all whom "it may concern:

Be it known that I, EVERETT F. MORSE, a citizen of the United. States, and a resident of Trumansburg, in the county of Tompkins and State of New York, have invented certain new and useful Improvements in Drivecation. I

This'invention relates to an improvement in drive-chains for general ower transmission, and particularly to c ains of'this bearing upon one another throughouttheir length alon the line of bearing of the link upon the ot er in the joint.

One object of the invention is to increase the bearing-surface at the joint in'chains wherein the links are made up of plates of which those in one link are interspersed upon the pintle with those of the ad acent links engages itsrespective part of the pintle and pintle.

Another object is the construction of .the chain in a manner such that alternate links only of, the chain shall enga 'e the sprocket whereby the arts of the pintles having plain bearing su acesthe seat pins-may be mounted facing each other 1n those links which do'not touch the sprocket and which surfaces are substantially at right tendency of the rockers the other nem ers of the twoart pintle-upon the seat-pins being there y avoided.

Another object of the invention is the i'or' mation of the seat-pin with flattened or otherwise irregular sides throughout, whereby it will hold a fixed position in each of the substantially conform to said irregularities.

With these objects in view the invention consists in the construction and combination of" parts, substantially as hereinafter set forth and claimed. 7

in the accompanying drawings, which form apart of this specification, Figure 1 represents in side elevation a pair of sprocket wheels and a section of chain, parts of 'the latter being broken away to disclose'the" mechanism of the joints. flFiguro 2 is'a plan of three consecutive links in the chain seen in .the joint shown in Fi ure 5.

Specification of Reissued Letters Patent. Reissued Aug. 18, 1908.

76,616. Application for reissue filed June 30, 1908. 441,265.

Figure.1. Figure 3 represents in side and endelevations the parts of a pintle in said chain. Figure 4 represents in end view the parts forming a joint of my chain, wherein the pintle consists of a seat-pin-and a rocker and wherein the radius of curvature of the rocker is somewhat larger than that of the seat-pin and wherein the apertures through the links are made to conform to this relation of the two parts of the pintle. Figure 5 is a similar viewof forms of aperturesin the ad oining links when the seat-pin and rocker ave the same radius of curvature. Figures 6 and 7 show the forms of apertures ends of lates forming the links represente as j oined in Figure 4., Figures 8 and 9 give a similar representation with respect to Figure 5. Figure 10 represents one end of one of the outside plates of a link showing the form in overlapping of aperture forreceiving the end of the seatpin, which serves to connect together the plates constituting adjacent links. Figure 11 represents a horizontal section through Figure 12 shows the aperture in the outside plate of the links supporting the rocker, wherein the radius of curvature of the rocker and seats pin is the same. Figure 13 is a similar view of'the joint, wherein the radius of curvature of the rocker is larger than that of the seatpin. Figure 14 is a vertical section through the joint seen in Fi ure 13, taken in the plane indicated by the ine 1 l---14, and shows the difl'erence in the size of the apertures in the outside plates of the link engaging the rocker and intermediate links. Figure 15 re )resentsin elevation a section of sprocket wheel and chain, wherein the engaging links of the chain are designed to have internal engagement on either end and external engagement on one end. Figure 16 is a like view wherein the engaging links are designed to have external engagement on either end and designed to have internal engagement on either 'end. Figure 18 is a like view wherein theengaging links have internal and external engagement on one end and no engagement wheel between'the faces of'the toot Fig- .on the other except to touch the s rocket ure T9 is a like view'wherein the enga ing;

links'h'ave either internal or ex ternal engage 'ment on both ends. Figure 20 1s a trans-v verse section of the joint, showing a modified form of pintle.

This invention has to deal es ecially with chains wherein the links are ma e up of a series of plates whereofthe plates of each link are interspersed upon the pintle, preferably in regular alternation with those of the adjacent links, and wherein/r .e pintle or pivot joining the links consists of two members, each rocking upon the other along the axis of oscillation between ad' acent links.

In Figure 1, A an B indicate a pair of s rocket-wheels; C, the plates constituting t e links which engage the sprockets; D, the inside plates, and D the outside plates, constituting the links which do not engage the sprockets. The pintle consists of two parts; F, the seat-pin, and G, the rocker. The seatinsare fixed in the ends of the plates D, so that their plain bearing surfaces face one another and are substantially perpendicular to the length. of the link. The seat-pins F are also ovided with irregular generally flattene rear surfaces throughout their length,

as indicated at 20, 21,'Fi'gures Sand 4, whereby the plates D-will be held in fixed relation to the seat-pins, the apertures in said plates being made to conform to said surfaces of the seat-pin, as indicated in is fully illustrated in Figures 4 to 14.

Figures 4, 5, 7 and 9. The seat-pinsv are also preferably'shduldered, as indicated in Figures. 3 and 1 4, and in assembling the chain the reduced ends are slightly softened inorder that they may be riveted upon the outside plates D, as clearly seen in Figure 11. The rocker G has the back surface, or that which engages the a erture of the links (l, referably cylindrical though, if preferred, it, too, may be fixed in place in said plates by making its back surface irregular, as in the scat-pin.

In constructing a chain of the sort just described, ample clearance should be provided .in'the plates of one link for the movement of that part of the pintle which is secured in or has intimate engagement with the ends of the lates of the adjacent links. This clearance It is also advisable to make the clearance portion of the pintle-aperture in the plates along the middle of the pintle a little larger than at the ends of the pintle, so as to provide against the possibility of the parts of the pintle binding in said apertures should either part of the pintle fail to be perfectly straight. This variation in size of apertures is seen in Figures 11 and 14, wherein the apertures in the outermost plates 0 provide simply for the free movement of the said plate about the seat-pin F, while in the intermediate lates (l and in the plates D ain-ple clearance or all purposes is provided.

()ne of the chief advantages of the twopart pintle in a plate-chain resides in the fact that a continuous bearing is provided throughout the width of the links, as clearly illustrated in Figure 11. Were the pintle a solid one, the links D would have a bearing in the joint for but one-half thelength of the pintle and likewise with the links C, whereas with a two-part pintle each of said links has a'bearing extending from one outside plate D" to the other along the. line H, Figures 8 and 1].. face is doubled by the use of the two art pintle, and the wearing away at the pint e is thereby very materially decreased. This feature of my invention is equally applicable to. a joint, as shown in Figure 20, formed of pintles designed so that one part of the pintle G rubs on or turns in the other part F as the joint bends; This formation of chain where- ,in alternate links only engage the sprockets enables the mode of engagement between the sprocket-engaging links and the sprocket to be considerably varied, as illustrated in Fig ures 15 to 19.

In Figure 15 thech ain running over the driving sprocket-wheel A, for example, e11

gages the sprocket teeth by the external and internal bearing surfaces as and 'y of the links C, while in running over the driven sprocketavheel the teeth are engaged solely by the in ternal bearing-surfaces z of the links C, as is clearly seen by conceiving the direction of movement of the wheel A to be reversed.

In Figure 16 the same is true with respect to the driving sprocket-wheel, but on the driven sprocket the link C engages the sprocket teeth solely by, the external bearing surfaces n.

in Figure 17 the engagement with the Thus for each link the bearing surteeth of the driving sprocket-Wheel is by the internal bearing-surfaces y of the links C, and j on the driven sprocket the enga ement would be by the internal bearmgsurf aces z, while in F gure 1 the same is true with respect to the external bearing-surfaces :r and a, respectively, of the links C.

, In Figure 18, the engagement on the driven sprocket is by the internal bearing surfaces 2 and on the driving sprocket by the external bearing surfaces :0, the opposite ends of links 0 not touching the sprocket teeth at all, but simply resting by a projection W upon the sprocket wheel between the teeth.

In Figure 19 the engagement with the teeth of the driven s rocket wheel is by the internal and externa bearing surfaces 2 and a, respectively, of the links C, while the engagement with the teeth of the, driving sprocket-wheel is by the external and internal bearing surfaces at and y, respectively, of the links C. a

While the explanation of the invention above given has reference specifically to a structure in which the pintle is described as composed of two parts, it is obvious that the generic idea involved is applicable to a structure having a pintle made in separate lllE parts, whether there be two or any other number of parts more than one, three; p'artpintlefchainofjanalogons(structure is v v p posed, of a plurality otplates, the plates of shown inone of the modifications ofthe app'licants'Patent' N 0. 736,999 which-was copending with the original Letters Patent I 757,762. i I do not inthispatent cover per sepintles formed in se arate a pintle made in two parts, or in separate parts (whether two or more) irrespective of the form of links with which the pintle is associated. On the-contrary, all the claims of this patent in which the pintles are elements are limited to the ein 'lo ment of such pintles.

in whatare comrno nown as multi-plate chains or links, wherehy the effective bearing surface is increased.

I claim as m invention I g 1. A drive-c ain having ,its links composed of a plurality of plates, the plates of each link being inters arsed upon the pintles with the plates of tlie adjacent links, and arts, of which one part engages wit the p ates of one link only andbears upon the other part of the pintle v 2.' A drive-chain having each link composed in a plurality of plates, the platesilofv each Link being interspersed upon the pintles wit la the plates of the adjacent linksfand pintles formed in separate parts adapted to turn one upon the other, the apertures in.

- said plates throughwhich both parts of the pintles pass being made to hold in place one part of each pintle,and to allow free move-- ment or clearance of the other part thereof.

3. A drive-chain having each link composed of aplurality of plates, the plates of each link being interspersed upon the pintles with the plates of the adjacent links, and pin tles formed in separateparts adapted to turn one upon the other, the apertures in said plates through which both arts of the pintles pass being made to, hol in place 'one part of each pintle andtof allow free movement or clearance of the other art thereof,

and which apertures in the intermediate plates have a larger clearance portion than in the outermost ones.

4. A drive-chain having each link composed of a plurality of plates, the plates of each link being interspersed upon the pintles with the plates of the adjacent links, and pintles formed in two parts engaging each other along the axis of oscillation of the links and adapted to rock one upon the other.

. .5. -A drive chain having each link com posedv of a plurality of plates, the plates of eacllf link being interspersed upon the pintles with the plates of the adjacent" links, and alternate. linksbeing free from eiigngcnu-ntwith the sprockets, and two-part pintles of which the seat pins are mounted facing each. other in the links which do not. engage the sprockets and have plain bearing surfaces which are. substantially at' right angles to thelength of said links, ,w v

6'. A'drive'chain having-each 1i'nk.om-

each link I being interspersed "upon. the intles with the plates otffl the adjacent ks, and two-part pintles of which the seat-pins have flattened sides throughout their length whereby they holda fixedposition ineach ofthe plates with whichthey engage. i

7. A drive-chain having each' link;eomposed of a plurality of plates, the plates of each link being interspersed upon the intles with the plates, of the ad'acent inks, an I two-part pintles of whic the seat-pins have irregular rear surfaces whereby theyhold a fixed position in each of the pintles formed in two parts, of which one v part. engages with the plates of one link 1 only and passes freely through 0 enings in the plates of the adjacent link, and the other part engages with the lates of said adjacent link and passes free y through openings "in the lates of the first-mentioned link.

10. drive-chain having ad'acent links composed of a plurality of plate adapted. to arch over the sprocket-teeth, the plates of each link being inters ersed upon the pintles I with the plates of t e adjacent links, and pintles formed in separate parts which bear upon each other throughout substantially the full width of the chain, one part of the pintle'engaging with the plates of one link only and passingfree1y through openings in the plates of the adjacent link.

11. A drive-chain having each link composed of a plurality of plates interspersed upon the pintles with the plates of the adjacent links, :and pintles formed in separate parts extending substantially the full width of the chain, and adapted to turn'orie upon another, the apertures in said made to rigidly hold one part 0 and to allow freemovementof the, other part thereof.

v 1 2. A drive chain having adjacent links lates being r each pintle composed of a plurality of plates adapted to I arch over the sprocket teeth, the p ates of each link being provided with apertures at their ends and interspersed upon the pintleswith the plates of the adjacent links, and I the apertures of the plates of such adjacent v being so engaged in the apertures of the pintles formed in a plurality of separate llink as to turn therewith, and passing freely parts adapted to engage one with another to l through the apertures in the plates of the form a longitudinally extended bearing other link.

throughout substantially the full width of In testimony whereof I have hereunto the chain, one of the parts of the pintle signed my name in the presence of the subscribed witnesses.

' EVERETT F. MORSE.

plates of one link only as to turn therewith and passing freely through the apertures in the plates of the adjacent link, and another of the parts of the pintle being so engaged in I Witnesses:

. C. W. FLETCHER, LQD. HAYES.

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