US872882A

US872882A - Belting.

Info

Publication number: US872882A
Application number: US34841706A
Authority: US
Inventors: Charles F Aaron
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-12-18
Filing date: 1906-12-18
Publication date: 1907-12-03
Anticipated expiration: 1924-12-03

Description

j so

oHARLEs E. lllARoN, or NEW YORK', N. Y.

BELTING. j

To all whom fiiiiriifco cern:

Be it known that I, CHARLES F. AARON, a

citizen of the United States, residing. at-

Brooklyn, city of `New York, county of Kings, State of New York, have invented j grades of belting.

To this end, the invention involves the cutting of the whole hide into a strip, preferably continuous in length, the cut being made substantially s iral in form, i. e. beginning at one end of t e hide and passing by successive turns or convolutions until the final cut ends at the middle portion of the hide, straightening the strip thus cut, lacing several strips, cut from individual ides on edge and side by si de and in close interrelation,with the weaker portion of the strips, due to the varying character of the leatherin the individual hides brought in substantially the same longitudinal section of the finished belting with the stronger' portions of other strips, whereby the belting produced is of substantially uniform strength throughout,

and finally securing the several strips together by suitable transverse fastening means.

. In carrying out the process, it is desirable a uniform thick- 'that the hides be reduced to ness, in 'order that the strips cut therefrom may be substantially uniform in cross sec- .tion from end to end and, incidently, the

involve the saving of valuable parts of the fihide,`fs`uch,as the grain, which is s lit or ,i skived from the upper surface of the 'de in 4`5 `steps incident to this lreduction of the hide al continuous sheet, andthe under portion or flesh of thehide, which is likewise split off in a continuous sheet, so as to leave `the middle or intermediate portion of the hide 'of uniform thickness throughout.` i

-s ective view of a small section of the 'de s owing the mode of reducing the same to a uniform thickness and at the same time sep- I UNITED STAWENE )-1g11-,110E

Specification of Letters Patent.

Applicationiiled December 18. 1906. Serial No. 348.417.

.better forms of belting,

kIn the accomipanying'drawings, :Figure 1l Patented Dec. 3, i907'.

arating the more valuable grain from the upper surface and the iiesh and superfluous eather from the lower surface. Fig. 3 is a longitudinal section through thehide, graphically illustrating the constituent parts thereof in their relative arrangement, 'and the mode of separating the grain and flesh to j f produce the body ortion, of uniformithicki ness, from h'ch t estri s are subsequently 65 l cut. l* 1g. 4 is a plan view of a sectfftle completed belting, showing a convenient mode of securing the strips together andlikewise a convenient kmethod of securing.,'theends of the belting together to produce. Pan endless band or belt. Fig. 5 is a transverse section of. a modified form of beltingj be employed in connection with c roWne leys. A In the general manufacture ,.:0 .eather belting, 1t has been customary heretofore- .t0

take the properly tanned steer butts vailfd cut out the only available po 'mthe which portions-are limited to the rear half of the backjandthe Hanks, leaving the neck, shoulder, and side il] portions as undesirable material. It, thus be seen that the available materialfuor 'l' 2 `belting urposes constitutes somewhatlessl than hallf'of the entire butt,under the condii- 85,v A tions heretofore prevailing, and, in orderito 'i' produce belting of commercial.v lengths, viz'.= ,E 400 to 600 feet in length, strips va g in" i width from a few inches to several feet yand j 'i 'f approximately 4 feet in length were out from 90 these prime portions of the hide and united end to end `by cemented lap joints, sov that each hundred feet of belting would involve twenty live or more cemented joints. Under the former practice, also, when belts of unusual thickness were required, it was'customary to build the belting up of two or more plies, properly cemented together, the strips 1n the successive plies being so arranged as to break joint with each other, so that, in a twoply belting fifty or more joints were necessary in each hundred feet and in a three-ply belting seventy-ve or more joints wererequired. Aside from the inherent weakness of the old style of leather belting, due to its numerous joints, it has been found inefficient to a degree, when applied to crowned pulleys, for the reason that the relative transverse stiffness of the belting while in operation, prevents its engaging the face of the pulleys over the entire transverse surface thereof, the belting either engaging only the arrange apex of the crown or the apex and one of the lateral faces, and riding out of contact with other forms of pulleys than those having flat driving faces.

As' heretofore mentioned, it is the urpose of the present invention to pro uce elting, in commercial lengths, and of any desired thickness, which will com 'letely obviate the many objections to the ol forms of flat belting, to wit, a process which will utilize allof the material of the hides, except the irregular edges thereof, and the commercially valuablegrain and flesh, which are cut therefrom, in producing belting made of relatively long strips, of a width corresponding to the thickness of the finished belting, set upon edge and side by side, with the weaker ortions of the i individual strips in the same transverse section of the belting as the stronger portions of the other strips, and the whole secured together by transverse fastening means, thereby pro- -viding belting which is highly fiexible in all directions, is devoid of separate plies for varying thicknesses and, moreover, may be suitably hollowed or concaved on its engaging surface to accurately engage the operating surface of 'crowned pulleys. Moreover, belting made by this process when cut in suitable lengths to form individual belts, maybe accurately joined at its ends, so as to produce a perfectly smooth surface on both sides andl also to introduce but a single transverse se aration in the en'tire length of the belt which) is at the jointure of its ends.

Referring to the drawings, a indicates a steer hide. As hereinbefore described, hides of this character afford a com aratively small amount of leather availab e for the ,manufacture of flat belts, for the reason that the neck portion b is thick and relatively Soft and porous, the shoulder portions e are more or less spongy and lack the tough therefore be split or skived in a sheet of substantially uniform thickness from the hide.

The under surface iof 'the hide consists of various portions of tissue and fat, known as the fiesh, which, though having certain commercial value, is not desirable in the finished belting and which, therefore, may be conveniently ysplit or skived from the hide in a continuous sheet. Generally speaking, the hide is 'of varying thickness, beginning at the neck b, which is uite heavyand spongy, it decreases in thic ess until it reaches the relatively heavy fibrous portions f overlying the kidneys and other organs on either side of the backbone and thence diminishes in thickness toward the tail. In carrying out my process, the under or flesh portion of the hide is first skived to produce a substantially uniform surface, after which' the grain is skived off, both of which operations may be effectively carried out by Well known skiving. This leaves a body of uniform thickness composed of the fibrous material of the hide a of the same area as the hide.

Beginning at one corner of the hide, and

preferably at longitudinally opposite corners in an equal number of hides, so `that alternate strips may have their initial portions taken from the shoulder and flank portions respectively of the hidesgstrips of uniform width are cut from the several ides, the cuts 'necessary to produce the strips 'being made in a substantially spiral form, as indicated in Fig. 1. These strips h are made of a Width equal to the thickness of the belting tofbe formed therefrom, and, in order to conserve the greatest economy of material in taking the cut from a 'ven hide, the outside 'out conforms as near y as may be to the configuration of the hide, thereby leaving but little waste material on the outside `of the cnt. It will be observed that each'stri .includes substantially every portion of a ide from the soft s ongy and relatively weak neck and shoul er ortions to the tough fibrous rime sections om the rear art of the bac and the fianks. Neverthe ess the individual strips when straightened, present a continuv ous length of from 400 to 600 ft., for a hide of p average weight, and are uniform incross section. Necessarily those portions of the strips which were taken from the inferior sections of the hide are weaker than the prime sections from the back and adjacent parts, so that if a single strip were alone considered` it would present an element no stronger than its weakest portion, that is to say the section taken fromthe porous portions of the hide. This variation in 'the strength and texture of the individual strips, however, is adequately com ensated in the completed belting, in the fo lowing manner.

After an appropriate number of hides have been cut into strips of uniform width, the strips are placed upon edge, side by side, throughout their lengths, the butt end of one strip being so located as to lie in the same ably the next adjacent strip, and, correspondingly, the stronger ortions of the several strips, which inclu e the fine, tough grained portions of the hide, are brought into juxta-position, transversely considered, with the weaker portions of other strips, so that, considered as a whole, the belting presents a structure of substantially uniform strength throughout. After the strips have been thus arranged, they are secured together by any suitable fastening means. Inasmuch as it is desirable that both faces of the beltingpresent a substantially smooth unbroken surface to the pulleys which they engage, whether they be driving pulleys. or guiding pulleys, I find it convenient to secure the several strips together by transverse devices which do not project beyond the faces of the belt. A convenient mode of securing the strips together to accomplish this purpose is shown in Fig. 3 of the drawings, and consists of a series of relatively thin flexible wire screws which are driven through the several layers or strips, transversely to the desired depth by a well known form of machine which is available for this purpose. It is not essential that' the transverse screws pass entirely through the belting, ,but they may be arranged as indicated in staggered relation,

land pass only part way through the several strips. Of course other means for securing the strips togethemay be employed, as for instance, fastening them by continuous transverse lacing or the like.

It is to be particularly noted thatY belting made in accordance with this method may be of any desired thickness, which is determined by the width of the several strips and also the length of the belting is limited only by the commercial exigencies of manipulating and storing the completed article. When it is found necessary to join two or more strips to form a continuous length, it is only necessary to square the abutting ends of the stri sections and bring them into juxtaposltion between the ad'acent strips. No other fastening than the evices for securing all of the strips together is necessary, as the severed ends of the strips will occupy their proper position and present no break in the continuity of the belting surface.

When it is desired to make up a belt of 'known length, a roper length of the belting is cut from the ro l in which 1t is usually kept, the ends of the sections, which are to be brought together to form the joint of. the belt may be conveniently fashioned in the manner shown in Fig. 4, to wit, the ends of alternate strips h are cut out leaving projecting tongues j which t accurately into the corresponding recesses formed by cutting out the opposite strips in the other end and passing a pin or pintle transversely through the 'vase' several interlocked tongues or strip ends'. While this affords a ready and convenient mode of joining the ends of the belt, it is obvious that other means may be employed without departing from the spirit of my invention.

A particular advantage inherent in a belt made in accord ance with this invention is its ready adaptability to crowned pulleys, for by hollowing or concaving the lower or operatrnay be caused to accurately engage t e entire transverse surface of the crowned pulley i and exercise its maximum driving effect.

To secure the best economy 1n carrying l` out the method herein proposed the grain should be removed inv athin layer from the entire hide, and when so removed Imay be -used as a high grade leather. When the ing surface of the belt, as' shown in Fi 5, it

usedfor belting, that is, the rear half of the back and the flanks, no savingis attained, excepting the saving of the grain portion. If, however, any of the weaker portions of the hide are included in the strip an additional saving is at once attained, but,it b'ecomes necessary to build up the belt with the weaker portions of one str1 adjacent to the stronger portions of anot er. Thus, ,if in making up a belt from strips of hide any portion of the weaker leather-in the hide is so utilized thehenefits of my invention are to' that degree attained.

So far as Ifam aware, I am the rst to propose in the m l-nufacture of leather belting to remov\e the valuableY rainwirr a continuous commercially sjalable s eet fronfthehide or section ofdlidentilizeddand'then' tomcut the hide into a continuousstrip, and to make up a high grade belting from several such strips placed on edge and side by s ide and secured together. I- am. also the first to propose to cut from a hide a continuous strip including vthe stronger and weaker portions of the hide and to overcome the weakness of these individual strips by making them up into a continuous be ting by placing them on edge and side by side with the stronger portions of one strip adjacent to the weaker portions of another strip in the manner described.

What I claim is 1. The method of making belting which consists in cutting a continuous strip from the weaker and stronger portions of a hide, placing several such strips on edge and side yside, so arranged that the weaker portions of the several strips lie in transverse proximity to the stron er portions of others of said strips, and .final y securing the strips together.

2. The method of making belting composed of strips of leather, which consists in cutting the respective strips in continuous lengths from the weaker and stronger portions of a hide, placing the strips on edge and side by side, with the weaker portions of thel several stri s placed adjacent the stronger portions of t e contiguous stri s to roduce a belting of uniform strength t oug iout, and finally f'securing the several strips together.

3. The method of making belting composed of strips of leather, which consists in cutting the respective strips in continuous lengths and of a width substantially equal to the thickness of the finished belting, from the weaker and stronger portions of a hide, placing the strips on edge and side by side, with the weaker portions of the several strips placed adjacent the stronger portions of the Y contiguous strips to produce a belting of uniform strength throughout, and finally securedge and side by si ing the several strips together.

4. The method of making belting composed of strips of leather, which consists in cutting the respective strips in continuous lengths from the weaker and stronger portions of a hide, 'placing the strips on edge and side by side in alternate relation to cause the weaker portions of the several strips to lie l' .adjacent the stronger portions of the contiguous strips, and finally securing the strips together by transverse fastenings.

. 5. The method of making belting which -'consists in splitting the grain from the hides in continuous sheets, cutting a continuous strip from the weaker and stronger portions of each hide, placin several such strips on de so arranged that the weaker portions of the several strips lie in transverse proximity to the stronger portions of others of said strips, and finally securing the strips together.

6. The method of making belting which consists in splitting the grain and the fiesh from the hides to reduce the latter to uniform thickness, cutting a continuous strip from vthe weaker and stronger portions of each hide, placing several such strips on edge and side by side so arranged that the weaker portions of the several strips lie in transverse proximity to the stronger portions of others of said strips, and final y securing the strips together. I

7. The method of making belting which strips of leather cut from the weaker and consists in splitting the grain and the flesh from the 'hides toreducethelatter to uniform thickness, cutting a continuous strip of substantially spiral form from the weaker and stronger portions of each hide, straightening the several strips, placing them on edge and lside by side with the weaker portions of the strips arranged in the same transverse portions of the belting with the stronger portions of other strips, and finally securing the strips together by transverse fastenings.

8. Leather belting composed of continuous strips of leather cut from the weaker and stronger portions of hides, the strips being arranged on edge and side by side with the weaker portions of each disposed in the same transverse section as the stronger portions of other strips, and means for securing thestrips together.

9; A power belt composed. of continuous i stronger portions of hides, the stri s lbeing arranged on edge and side by sidi); with the weaker portions of each disposed in thesa'me transverse section as the stronger portionsof. other strips, means for securing the several'- x strips together, the ends of thebelt .bein,f fwjoined by alternate tongues I and recessies^-`90 which interlock in the respective ends andi-a transverse fastening device passing through the interlocked tongues. s

l0. A power belt composed of continuous strips o'f leather cut from the weaker and 95 stronger portions of hides and of the same length, the strips being arranged on edge and"- l side by side with the weakerportions'of each disposed in the saine transverse section as the stronger portions of the other strips, and means for securing the several strips t0- gether, the strips being so dis osed with respect to one another that at t e extremities of the belt-alternate strips project-be ond their fellows so. that the strips form inter ocking tongues and recesses, and a transverse fastening device passing through the interlocking tongues.

11. A power belt composed of continuous strips of leather cut from the weaker and stronger portions of hides, the stri s being arranged on edge and side by si e with the weaker portions of each disposed in the same transverse section as the stronger portions of other strips, and means for securing-- the strips together, the strips increasing in depth progressively from the center outward to form a lower concave surface.

In testimony whereof I aiiix my signature, in presence of two witnesses.

CHARLES F. AARON.,