US2109687A - Leather polishing apparatus - Google Patents

Description

March 1, 1938. M. A. BUCKLEY I LEATHER POLISHING APPARATUS Filed Dec. 30, 1935 2 Sheets-Sheet l l L M 5% W. a A

March 1, 1938. M, A. BUCKLEY LEATHER POLISHING APPARATUS Filed Dec. 50, 1935 2 Sheets-Sheet 2 RN 2: v

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Patented Mar. 1, 19 38 EJETED STTES PATENT OFFICE LEATHER PGLISHING APPARATUS Milford A. Buckley, Olean, N. Y., assigncr to Carley Heater Company, Inc., Olean, N. Y., a corporation of New York Application December 30, 1935, Serial No, 56,829 Claims. (01. 149- -15) The present invention relates to leather polishjacent the longitudinal center of the frame, and ing apparatus. a like support it interconnecting the opposite A primary object of the present invention is end supports l3 intermediate the sides of the the provision of a leather polishing apparatus frame. The frame also includes opposite end 5 which is simple and inexpensive in construction, vertical supports l1 and a vertical support I!!! and which is efficient and speedy in operation. between the opposite ends of the frame.

A further object of the invention is the provi- The numeral l9 designates a polishing roll sion of a leather polishing apparatus which comwhich, in accordance with the invention, is prefprises a polishing roll, a conveyor or feed roll, erably constructed of woolen disks as indicated 10 and a kick-oif brush cooperating with the polin Fig. 1, each of the discs preferably being con- 10 ishing roll; and separate adjustable driving structed of small pieces of sample wool as is inmeans for the polishing roll, the feed roll, and (heated in Figt s s being a n d to a the kick-off brush. Wood core as indicated at 20 in Fig. 3. The polish- A still further object of the invention is the ing roll may, however, be constructed of wool provision of a leather polishing apparatus comcloth suitably secured to the shaft later referred 1 5 prising a power-driven polishing roll, an adjustto.

able power-driven feed roll for presenting leather The roll I9 is supported by a shaft 2| which at to the polishing roll, and a chute for returning one end thereof is journalled in a bearing 22 and the polished leather to the operator. which inwardly of the opposite end thereof is A still further object of the invention is the journalled in a bearing 23. Each of the bearings 20 provision of a leather polishing apparatus com- 22 and 23 is adj b y pp d on t e t readed prising cooperating polishing and feed rolls which studs 24 projecting downwardly from a bearingare of improved construction for assuring accusupporting bracket '25 which is suitably secured rate feed of the leather as well as 'a uniform finto the supports [5. The bearings 22 and 23 can 25 ish to the surface thereof. A still further object readily be adjusted up p p tu ng of the 25 of the invention is the provision of a leather poluts 2 On the tuds 24 w e y the polishing r011 ishing apparatus embodying novel cooperating 9 can be P p y adjusted W p to the elements to secure uniformity of polish on the feed roll, later described, as may be occasioned as leather and adjustable means for varying the h urface thereof becomes worn.

so degree of polish. The shaft 2i extends beyond the bearing 23 and The invention consists in the improvements as Su ta y S d theTetO externally 0f t e hereinafter describedand claimed. frame a belt-wheel 21 which is operatively con- In the accompanying drawings, forming a part nected by a pair of V-belts 28 with a smaller beltof this specification: Wheel 29 which is carried by the outer end of the Figure l is a front elevational view of a pre- Shaft 11 Of a motel pp r on a Suitable 3'5 ferred embodiment of the present invention; base 32.

Figure 2 is a left-hand end elevation; and e meter 3 s p e y of three (3) horse Figure 3 is a right-hand end elevation of the power and has suificient velocity to drive the roll construction illustrated in Figure 1. it at a velocity of substantially 850 revolutions The same numerals of reference are used to D u 4O designate like and corresponding parts in the In Ord o p v e Sufficient driving tension in various figures on the drawings. the belts 28 as well as to provide for easy re- The frame by which the various operating and placement thereof the motor base 32 is preferably driving elements are supported may be conadjustably mounted in the frame which may-be of 4-5 structed of relatively heavy wood pieces or it may any suitable construction and which as illustrated be constructed of angle-iron. The frame as ilpreferably comprises guide-ways 33 in one of the lustrated is constructed of the former and comrear corner posts !4 and in the support I 8, in prises vertical corner posts IE, top, intermediate, which guide-ways are slidably disposed guides and bottom horizontal end sup-ports H, i2 and 34 on the base 32, the base being secured in any 5 !3,respectively, at the opposite ends of the frame, adjust d p s t n y means of s 35 a i and a horizontal support it connecting opposite Studs 36 pro g thlellgh e ated slots 3? in corner posts at each side of the frame intermethe base 32. diate the top and bottom thereof. The frame The roll I9 is adapted topolish the surface of further comprises a pair of horizontal supports it the leather which is presented thereto upon a interconnecting the opposite end supports II adsuitable table 38 having an opening v39 therein to 55 permit the polished leather to follow the chute, later described, as well as to provide operating space for the propelling or feed roll 40.

The feed roll is mounted vertically below the polishing roll I9 and is co-extensive in length therewith. The feed roll preferably comprises a cork-covered cylinder suitably secured to a shaft M which, at opposite ends thereof, is journalled in bearings 42, each of which is supported by a base 43 slidably disposed in a guide-way 44 in one of the supports II. Secured to the right hand end of the shaft 4I exteriorly of the frame is a relatively large sprocket-wheel 45 in driving engagement with a roller-chain 45, which chain engages a small idling sprocket 41 and is driven by a small sprocket 48 fixed on the shaft 49 of a motor 50.

The motor 50 need only be of about three quarter horse power to drive the feed-roll, which has a velocity of only about ten, (10) revolutions per minute.

The feed-roll 49 is adapted to be raised and lowered in the operation of the machine, and this is effected by means of improved mechanism which not only raises and permits lowering of the roll but provides for an adjustable uniform pressure on the leather being polished. The roll 45. is manually raised by means of a foot-treadle EI comprising a longitudinally disposed slat 52 supported adjacent each end thereof by one end of a bar 53 whose opposite or inner end is pivotally connected at 54 to an ear 55 projecting downwardly from the support I6. Pivotally connected at 55 to the support I6 adjacent each end thereof is a bell-crank lever 51, one arm of which is pivotally connected at 58 to an adjustable link 59 and the other arm of which is pivotally connected at 6!! to one end of a link BI whose opposite end is pivotally connected at 62 to the adjacent bar 53 outwardly of the pivotal connection 54. The links 59 are pivotally connected at 63 to the respective bearings 42.

This construction provides a simple and efficient means for raising the feed roll 40 into engagement with the leather as it is pushed forward on the table 38 for compressing same between the rolls I9 and 4E! and feeding same forward during the polishing action of the roll I9.

A coil spring 54 is preferably connected with the treadle and the frame, as indicated in Fig. 3, to normally hold the feed roll in inoperative position.

In order to provide a uniform pressure on the leather being polished an adjustable stud E is carried by the slat 52 adjacent each end thereof and is adapted to engage a stop 66 when the feed roll is fully elevated, as is illustrated in Fig. 3. The studs 65 are provided with adjusting and securing nuts 61 and 68. In order to effect further adjustment of the feed roll the adjustable links 59 may be shortened or lengthened. These adjustments in the feed roll actuating means further provide for varying the pressure on the leather for effecting different degrees of polish as may be desired on different grades of leather.

When the feed roll is in lowered or inoperative position the chain 46 will be slack and in order to provide sufiicient driving tension in the chain when the feed roll is in raised operative position the idling sprocket 41 is carried by a block 69 vertically movable in a guide ID in a bracket II disposed on the right-hand support I2, the block being retained in adjusted position by means of a bolt I2.

In order to prevent adherence of the leather to the roll I9 as well as to deflect the same toward the return chute, later described, a kick-off brush I3 is provided.

The rotary brush I3 is carried by a spindle or shaft I4, which shaft is journalled at opposite ends thereof in bearings 15 fixed to opposite end supports I2.

Secured to the shaft I4 inwardly of the adjacent end of the frame is a belt-wheel I6 operatively engaged by a pair of V-belts II which enage and are driven by a smaller belt wheel I8 fixed to the shaft 2I inwardly of the main drive belt-wheel 2'! carried thereby.

In order to provide sufficient driving tension in the belts II the same are engaged by an idle roll I9 suitably journalled on a block 80 vertically movable in a guide-way 8I in a bracket 82, the block being retained in adjusted position by means of a bolt 83.

In order to protect the operator against injury from flying particles from the roll I 9 as well as the roll itself, a sheet metal guard 84 is suitably secured at the upper edge thereof as by hinging to one of the supports I5, as indicated at 85 in Fig. 1, and securing the lower edge thereof in slightly spaced relation to the table 38 by brackets 86.

The invention comprises an improved means for returning the polished leather to the operator and which, in a preferred form, comprises a sheet metal chute 81 which is preferably secured at the upper edge thereof to one of the supports I5, as indicated at 88, and which is suitably secured at the lower edge thereof to a longitudinally-disposed strip 89 adjacent the slat 52 of the treadle 5|.

The chute 81, as is clearly illustrated in Figs. 2 and 3, is concaved toward the operator and has sufiicient inclination to permit the polished leather to fall by gravity to the feet of the operator. The chute 8'! is co-extensive in width with the length of the rolls I9 and 40 as well as the brush I3, and is preferably provided with lateral guide-flanges 9B. In the operation of the construction disclosed the leather is placed upon the table 38, whereupon the operator presses the treadle 5| down until the studs 65 engage the stops 66, and the feed roll 40 will, through the linkage above described, be brought into engagement with the leather and will compress same against the polishing roll I9 and feed the same uniformly toward the kick-off brush I3. The kick-off brush will release the leather from the roll I9, whereupon it will fall onto the chute 81 and return to the operator.

The cork-covered feed roll is not only yieldable but affords sufficient frictional engagement with the leather to uniformly and consistently feed the same forward, and the woolen disc polishing-roll presents a highly effective finishing surface to the leather being treated. As the feed roll rotates only about ten revolutions per minute while the polishing roll rotates about eight hundred and fifty (850) revolutions per minute or eighty-five (85) times as fast as the feed roll, the surface of the leather will be subjected to an effective polishing action by the roll I9.

From the foregoing description, it will be seen that the improved machine in accordance with the present invention is highly efficient in operation as well as being capable of polishing leather rapidly, and that the machine embodies such adjustments as to assure such efficiency in operation even after long periods of use.

While I have disclosed a single specific embodiment of my invention, nevertheless it is to be understood that the same is to be considered as illustrative and not restrictive, the scope of the invention being defined in the subjoined claims.

What I claim and. desire to secure by U. S. Letters Patent is:

1. Leather polishing apparatus comprising a rotatable polishing roll, a rotatable feed roll for cooperation with the polishing roll, a rotary brush cooperating with the polishing roll for deflecting therefrom the leather being polished, a pair of power units, drive means for the polishing roll and rotary brush jointly driven by one of said power units, drive means for the feed roll driven by the other of said units, and means for adjusting the tension in all of said drive means.

2. Leather polishing apparatus comprising a rotary polishing roll having a drive shaft, a rotary brush having a drive shaft, a pair of belt pulleys fixed to the polishing roll shaft, a belt pulley fixed to the rotary brush shaft, a motor having a belt pulley fixed to the drive shaft thereof, flexible drive means operatively associated with the belt pulley on the motor and one of said belt pulleys on the polishing roll drive shaft, flexible drive means operatively associated with the other of said belt pulleys on the polishing roll drive shaft and the belt pulley on said brush drive shaft, and means individual to said flexible drive means for adjusting the tension thereof.

3. leather polishing apparatus comprising a polishing roll and a feed roll for continuously presenting leather to the polishing roll, said polishing roll having an operating surface formed of wool and said feed roll having an operating surface formed of cork.

4. Leather polishing apparatus comprising a frame, a horizontal table supported by the frame intermediate the top and bottom thereof and having an opening therein, a polishing roll and a cooperating kick-off brush each rotatably mounted above the table, a feed roll rotatably mounted below the table in vertical alinement with the polishing roll and projecting through the opening in said table, means for driving the polishing roll, the kick-off brush and the feed roll, said polishing roll being rotatab-ly journalled in bearings adjustab-ly supported by brackets depending from the top of said frame, and said feed roll being rotatably journalled in bearings slidably mounted in said frame below said table, and means for successively positioning the feed roll in operative and. inoperative relation with the polishing roll.

5. Leather polishing apparatus comprising a frame, a horizontal table supported by the frame intermediate the top and bottom thereof and having an opening therein, a polishing roll and a cooperating kick-off brush each rotatably mounted above the table, a feed roll rotatably mounted below the table in vertical alinement with the polishing roll and projecting through the opening in said table, means for driving the polishing roll, the kick-off brush and the feed roll, said feed roll driving means comprising a power unit, a chain operably engaged with said feed roll and said power unit, an adjustably mounted idler sprocket engaging said chain, and means for successively positioning the feed roll in operative and inoperative relation with the polishing roll.

MILFORD A. BUCKLEY.

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