US1631580A - Belting - Google Patents

Description

WILLIAM M, oAvANAUGmorNEw XORK, 1v. Y,

BELTING.

- Application filed December 8, 1 9 23. JSerial No. 679,284.

-My invention relatesyto an improvement in belt1ng-leather beltingin particular, al

though, as a matter of fact,.material other than leather may be employed, if desired.

As is well known, leather ,beltingl as at.

present constructed has certain inherent characteristics which are particularly desirable in the transmission of power, and

these characteristics I desire to retain. On

the other hand, this type of belting is ex-' tremely expensive, owing to the fact that nothing but the very best grade of leather can be used with any degree of satisfaction;

in fact, it is Well known among manufacturers'of leather belting that the leather for this particular purpose must be taken. from the center'of the hide. Leather from other parts of the hide cannot be used practically owing to the factthat it is not of uniform thickness and in addition stretches greatly and unevenly when inuse, making it commercially impracticable for leather belting purposes. 1

One of the objects of my invention is to provide a belting structure which is practically nonstretchable, but which posesses the flexibility, durability, and tractive properties of leather belting as now constructed.

A further object of my invention is the provision of a structure wherein I can make use of scrap leather, if desired, thereby materi ally reducing the cost of manufacture.

Broadly, my invention consists in providing a belt of leather or other suitable material-I may use fiber, for example, or very heavy canvas duckin which I employ a vertebrate or articulated structure whlch' im:

parts the desired flexibility, both lateral and longitudinal, to the structure, this articu lated structure being so arranged as to take practically all of the longitudinal strain on the belt as well, and of such a character that stretching of the belting is prevented; This vertebrate construction enables me to make. useof leather of a grade which is not feasible under present practice, without, however, sacrificing the desirable or inherent characteristics of leather belting as new constructed.

While the vertebrate structure may be said.

to constitute a completestructure in itself, I prefer, for tractive purposes, to face the same with thin leather strips.

In the accompanying drawings ,1 have illustrated several embodiments of my invention, inasmuch as the inventionmay take a varietyof forms. J

Referring to the'drawings l f Figure; 1 is substantially a plan view of an embodiment of the invention; and I f 0 Fig. 2 is a'section taken on the line 2- 2- of Fig.1.. '3 '7 -f Referring to the drawings in 'detai1,2'des- I ignates a plurality of transverse flexible members, which may be o'f'leather, for ex- 5 ample, these memberswhich will be herein- 1 after referred to'as vertebr'aebeing permanently attached to each other by connecting members 3 of metal, these connecting memhers extendinglongitudinally of thebelting ceiving a pin or pintle 5 -ab0ut-which the" y 1 sections of the articulated structure are adapted to pivot. These pins or pintl'es may be of metal, raw hide, orother suitable material. The bent-over ends of the connecting i vmembers 3 are bentv up slightly out of the Elaneof the connecting members and emeddedv into the face of the vertebrae 2 to thereby hold the members in place. The vertebrae 2, connecting members 8, and pins or pivots5 constitute a vertebrate structure.

, Inasmuch as the connecting members 3, if of metal, possess very little tractive'propen ties, I prefer to face oneside of this structure with thin leatherstrips 6 extending longitudinally of the belt, a plurality of strips instead of one wide strip'being employed, so v as not to destroy the lateral resiliency or yield of the belt which is inherent in my im-v proved structure and desirable in most in- 100,v

stances, particularly when. used on cone pul- 'leys. If des1red,'a similar facing can be applied to the other face of the belting as well,

,such a construction being desirable when the belting is to be used as a twisted belt.

It will be seen from the foregoing that I have provided a belt or belting comprising an articulated or vertebrate structure "in which the vertebrae are composed of short strips of leather extending transversely of .110

the belting and attached to each other by metal connecting members to impart the desired lateral resiliency or yield to the beltingsstructure as a whole, the bent or yield necessary to enable the beltingto be. passed about a pulley being provided by a hinge connection between the individual vertebrae;

It Will be apparent also from the toregoing that scrap leather may be employed for the vertebra 2, if desired, as the longi- }virtually no: stretch" the ve'rtebrm 2 and henceit isimma'terial hether the members '2 stretch or not or \vhether they'strtath'unevenly or not.

The tact that I may use scrap leather isvot' decided advantage over leather belting asinowu nade wherein, as

j mg.

' istics are concerned.

of manufacture.

above pointed out, the best grade of leather must be employed to avoid unequal stretch- L It will be seenal'so that my in'lproved structure retains the desirable characteristics of leather beltin as now constructed so far as its tractiveand other desirable character- 1 It will be further apparent that I have provided an articulate or vertebrate structure for the purpose of imparting the de sired flexibility tothe structure as'a'whole, this construction also enabling me to employ agrade of leather Which, for one reason or another, has heretofore not'been cmployed, thereby materially reducing the cost By employing leather tor the vertebrate structure the'belting can yield both in'a direction to enable-the same to'be carried" about a pulley and also laterally. The fact that the leather en iployed may be ofuneven"thickness or may possess different stretching characteristics. is immaterial in my improved structures inasmuch as the longitudinal stress onthe belting istaken up by the-'metal connectingmembers which I have employed throughout.

'7 'VVhile I have specifically referred to leather as particularly desirable for use in connection With my improved belting, it 1s to'be understood that, as pointed out above, other materials may be substituted it desired,materials like fiber, for example, or a very heavy grade of canvas.

It is obvious also that the details of con- .struction may be varied from that above described Withinthe purview of my invention, and hence I desire not to be limited to the exact details illustrated exceptby the appended claims.

WVhat I claim is p I 1. Belting comprising leathervertebrae -ea'ch of which is of alength equalto' the Width otthe belting andcXtondingtransversely of the belting, sets 0t non-extensible connecting members attached to said vertebraa, each-set'ot connecting members comprising aplurality of members lying side by side and extending longitudinally of the belting and transversely of the saidYver-tebrtc' the connecting members oton'e set overlapping the adjacent set of connecting members said overlapping ends beinggiven a reverse bend to form loops the ends otwhich are embedded in the said leather vertebrae and means passing through the loop portions of the overlapping ends of the connectingn'ieur' vertebra and another set. to the adjacent vertebra, said connecting members attending len 'thwise of the belting. and each set conr I p w l prising; a plurality of members lyingside by side, means for attaching one set ot'connecting members to the adjacent set ot connectmg'members to provide non-extensiblmlat- "orally yieldable, articulated structure, and

strips of leather attached to one face of said I structure an'd'extending longitudinally of saidstructure; I 9 This specificationsigned this 4th day of December, 1923. V A

- lV'ILLIAlil M. GAVANAUGH.

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