US1106271A - Leather-drier. - Google Patents

Description

E. B. .AYRES.

LEATHER DRIER.

APPLICA'l'lON 111 131) 0130. 1013.

Patented Au. 4, 191% mwwm L z r z 5m 1111 I1 S lllll lllllllll l l l nv l I l I l I I I l I l I I I E. B. AYRBS.

LEATHER DRIER.

APPLICATION FILED DEC. 27, 1913.

3 SHEETS SHBET 2.

Patented Aug. 4;, 1914,

772L172 ass as 7kmfimu E. B. AYRES. LEATHER DRIER. APPLIOATION FILED mo, 27, .1913.

Patented Aug. 4, 1914.

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OQKOOO 000000 UOOOOO 000000 000000 OOOOOO 000000 000000 000000 000000 000000 ooo uoo ELWOOD AYRES, F PHILADELPHIA,

PENNSYLVANIA, ASSIGNOR TO THE PHILA- DELIPHIA TEXTILE MACHINERY COMPANY, OF PHILADELPHIA, PENNSYLVANIA,

A GOBPOBATION or PENNSYLVANIA.

LEATHER-DRIER.

Specification of Letters Patent. Application filed December 27, 1913.

Patented Aug. 4, 1914.

Serial No. 808,981.

The object of my invention is to construct a drying machine in which difi'erent grades or thickness-es of leather can be dried at the Fig. 5; v

"view illustrating the circulating chamber cal and one is horizonta direction of the arrow a,

transverse sectional sometime. This 0b ect I accomplish by arranging two or more conveyors in a casing and driving. them at different speeds so that the lighter skins are traversed through the casingat a greater speed than the heavier skins. "This object I attain in the following manner reference being'had to the accompanying drawings, in which: Figure 1 is aside view of my improved leather drying machine; Fig. 2 is a plan view; Fig. 3 is an end view looking in the Fig. 1; Fig. 4 is a view on the line aw-a, Fig. 5 is'a side viewof a modification'of the invention; Fi 6 is a transverse sectional view-of the mo ification shown in andFig 7 i is a transverse sectional placed between two drying chambers.

Referring to the drawings, 1 is the casing pf th'e drier, in the present instance, divided intofour longitudinal chambers by partitions 2. Two of these v The upper chamber' 3 c'ommnnicates at-each side with side chambers-7* and and under the hari'zontal partitionQ is the drying chamber 4 in which are mounted two lon tudinal'conveyers 5 and'ti, which travel ongitudinally in the casing The heating pipes .9 are arranged in an suitable manner in the side chambers 7 an 8 so as to provide sufficient heat to the air in circulation to the proper bring temperature. There. are three fans 11, 1D the present instance, which arehorlzontally arranged and mounted on vertical shafts 10. These" fans are located-in openings in the horizontal partition 2 and they circulate the air in the casin so that there is a constant circulation of air between the skins carried by the conveyers and through the side compartments 7 and 8. The moist air is removed from the center of the machine by means of an exhaust fan 28 connected to a flue 29 and fresh air is admitted at any desirable partitions are verhcharacter and thickness )oiut through openings 30. The fan shafts, 1n the present instance, are geared to horizontal shafts 12 arranged transversely of the machine, but the fan shafts may be driven in any suitable manner without departing from the essential features of the invention. Each of the endless conveyors consists of two chains 13 arranged to travel over sprocket wheels 11 and on these conveyers are placed the sticks 15 from which are hung the skins to. The two conveyors are identi cal in form, but one is driven at a greater speed than the other.

16, 17 are two driving shafts which are located at one end of the machine and on the shaft 16 are two sprocket wheels 18. Drive chains pass around these sprocket wheels and around sprocket wheels 20 on the shaft 19 so as to drive the conveyers and on the shafts 19 are the sprocket wheels 1410f the conveyers 5. On the outerend of the shaft 16 is a worm wheel23 whichmeshes witha worm on the shaft 24 on whichis 'a stepped pulley 25 andon the shaft 26 is a stepped pulley 27 so that the shaft 16 can be driven at an speed desired by changing the belt. Hhe's aft 26 can be driven from any source of power and, in the present instance, it is driven from the shaft 12 geared to the fan shaft, as shown by dashand dot lines, Fig. 3, illustrating the belt.

The conveyor 6 is driven from the shaft 17 on which are two sprocket wheels 18 and belts pass from these sprocket wheels around sprocket wheels 22 on the shafts; 21 on which the sprocket wheels 14 of the conveyer 6 are mounted. On the outer end of the shaft'17 is a worm wheel 23 with which meshes a shaft 24 and on this shaft is a stepped pulley 2. and on the shaft 26 is a stepped pulley 27, driven from a fan shaft 12. By arrangin the belts on the belt pulleys 25 and 27, an 25? and 27 the conveyors 5 and 6 can be driven at different speeds, according to the of the skins being dried.

I have shown in Figs. 1, 2, and 3, an endless conveyer in which the return run of the conveyer travels under the carrying run, and; in fact, travels over the floor of the drier.- The conveyers may be arranged in an manner desired.

n Figs. 1 and 3, the sticks 15 are carried by chains and may either be attached to the chains or, preferably, loosely mounted thereon. The skins can either be attached to the bars by clips or other fastenings or can be placed over the bars which are traversed "from one end of the-drying chamber to the other. An operator attl feed end of the machine places onebar arcroanother, with the skinsthereon, onfthe conveyor chains,

then another operator a't the discharge end of the machine removes the-bars from the conveyor.

y in lgs. 5 and'd, ll have.' illnstrated an other form of conveyor in Which-"the return run travels over the. top of the casin The" conveyors illustrated atfi and (i each conJ' can be drivenat different speeds and in this instance there are two conveyors in each chamber.

By the above apparatus ll am'enabled to dry skins of diiierent thicknesses. The" skins to be dried are of var ing size and tniclrness and heretofore it as been the common ctice 'to dry all of these skins in one driera {lonse neatly, the travel of the machine had to e regulated to dry the thickest and largest skins and in many instances the thin and small skins were over dried.

,,n1y improved drier an operator can; place the thin and small slnns in one chamher and the thick and large skins in the other chamber. It naturally takes a greater length or time to drythe thicker and larger skins and the conveyor carrying thcm is driven at a slowerv speed than the conveyor carrying the small and thin skins. When these different skins are removed from the opposite end or the apparatus, they are all property dried. I

Eihe combination in a drier for shins, or

The fans nrc e evi a casing having a drying chamber and a heating chamber-therein; a circulating fan for circulating heated air throligh the chamhers; two conveyers inthedrying chamber; means located on the conveyersv from which the skins to be dried are hung transversely agreater speed than the other.

2. Thocombination of acasing; twoloners; and means for driving one'conveyenai;

. to the direction of movement of the convey gitndinal' conveyors located therein; means-- forheating the air in the'casing; means for circulating the air; two driving shafts located at one end of the machine,v one shaft being arranged to ClIlVE one conveyer and "the other shaft being arranged to drive the other conveyor; and change speed mechanlsin for driving each shaft so that the speed of the two shafts can be varied at will in order tochange. the speed of travel of each conveyor. f

3. The combination of a casing having a longitudinal drying chamber and heating chambers ateach side oi the drying chamher; a circulating fan for causing the air to circulate through the chambers; twononveyers in the drying chamber; means for suspending skins from the conveyers; independent means for driving each conveyor; and change speed mechanism for each driving means so that the speed of travel of the conveyors can be independently regulated.-

t. The combination in apparatus for drying skins, of a casing having alongitudinally arranged drying chamber; heating; chambers at each side of the drying chamber; a series of circulating fans arran above'the drying chamberfor circulating the air through the drying chamber and the heating chambers; means, located near the center of the casing, for admitting fresh air; an exhaust fan communicating wlth the center of the-casing for withdrawing" the moist .air; two conveyors located in the drying chamber; means for independently traversing; the conveyors throne-h the casing; and means from which the s ins are suspended from the conveyers.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses. 4

. ELWUUD B. AYRES.

Witnesses: v 7 Quinn 1. Moran, WM. A. Benn.

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