Process and Apparatus for the Production of Belting Leather Butts.
Year: 1898

page_text: Date of Application, 6th Apr., 1898- Accepted, 11th June, 1898
COMPLETE SPECIFICATION.
Process and Apparatus for the Production of Belting Leather Butts.
I, VICTOR QUAEDVLIEG, Technical Manager of the Société de la Tannerie de
l'Azoff, at Taganrog, Russia, do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:
This invention relates to a process and apparatus for uniformly operating upon
the butts or backs of hides and drying the same in the stretched state so as more
especially fit them for use in the production of machine belting. For this purpose
said portion of the hide is cut out of the whole hide previous to the tanning
process and then suitably treated for the object in view.
The butt is then in the wet state placed upon a table, stretched, dried, and
operated upon with slip, stone, and steel. The butt is then subjected to a drying
process in a special frame and when half dry again placed upon the operating
table and operated upon as before and then again dried. This process may be
repeated as often as is deemed necessary until the butt is fully stretched out,
whereby it gains in length, firmness and pliability. It is very important that the
butt should be dried in the stretched state.
Machine belts which are cut out of or prepared from butts thus produced have
the advantage that they neither warp nor shrink.
The apparatus for performing the process is shewn in the accompanying draw-
ing Fig. 1 being a plan view thereof and Fig. 2 a part sectional side view, Figs. 3
4, 5, are views of details.
Tis the operating table having fixed upon it a block T¹ over which the butt
for the purpose of operating upon it is stretched by means of clamps K arranged
radially in the frames R shewn made of angle iron and fixed by screws one at each
end of the table, the whole being stayed by a rod or rods a. The clamps are
connected through chains, indicated by dotted lines, with the eyes of screws &
furnished with screw nuts by which said clamps may be adjusted radially and inde-
pendently of one another, so that the butt may be stretched at different places
little by little as desired and equably throughout. The clamps are guided between
angle irons R¹ arranged in pairs and connected together by screw rods S to form
an inner frame. When the clamps have all been drawn on so as to stretch the
butt C, held by them, equally throughout, the operation before described is pro-
ceeded with. Hereupon the clamps K may be fixed to the angle irons R¹ of the
inner frame by means of a pin which is passed through any suitable one of a
number of holes t¹ in each clamp plate t and into or against the edge of said angle
irons. The chain connections of the two frames may now be released and the inner
frame removed for the purpose of drying the butt clamped in it and of reserving
the butt for further or repeated treatment.
The clamps K have two jaws k¹, ka, (Figs. 4, 5) guided by pins f and fixed by
a screw bolt 7. Studs i in the bottom jaw engage in holes in the upper jaw by
which means the edge of the butt is held firmly clamped. The hole 12 in the plate t

page_text: of the bottom jaw serves for the attachment of the chains which connect with the
screws s.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. Process for the production of uniformly treated, stretched and pliable butts
or hide backs for making machine belting said process consisting in operating
upon and drying the hides in a stretcher frame, substantially as described and
shewn,
2. For the purpose of performing the process referred to in the preceding claim
an apparatus consisting of separate frames located one within the other and in
which the hides or butts to be treated are firmly stretched by means of a number
of radially adjustable and fixable clamps, in which stretched position said hides
or butts are operated upon and dried, substantially as described and shewn.
Dotel T
2 Al 1000
CAPITAINE & VON HERTLING,
89, Chancery Lane, London, W.C., Agent for the Applicant.