US1219231A - Operating mechanism for tubbing-machines. - Google Patents

Description

. Patented Mar;13,1917.

a ERS ca. PNom-Ll'nm par isan airarrr eerie OPERATING MECHANISM FOR. TUBBING-MACI-IIN ES.

Application filed August 23, 1916. 1 Serial N 0. 116,477.

To all whom it may concern Be it known that I, FRED BLATTNER,JI'.,

a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, having invented certain new and useful Improvements in Operating Mechanism for Tubbing-Machines, and do hereby declare that the following is a full,-

clear, and exact,description of the same, ref-; erence being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon. v

My invention relates to the swinging legs of tubbing machines which are machines for leathering furriers skins such as rats, skunks, etc., that are used in the manufac ture of coats, mufis and neck-pieces, These legs as ordinarily constructed are of wood. The object of my invention is to provide a leg which being of metal will be free from the objections to wooden legs and which in other respects structurally will'be an improvement in regard to the matters, of ad justment for wear and: convenience of re moving and replacing the box of the crank shaft by which the swinging or oscillating movement is imparted to the legs. To this end, my invention consists in the leg having the characteristics of construction substan-' tially as hereinafter specified and claimed.

In the accompanying drawings,

Figure 1 is a .perspectiveview of a leg and enough of a tubbing machine to illustrate my invention;

Fig. 2 is a detail view in perspective of the leg shown removed from the machine.

Fig. 3 is a detail view partly in section and partly in side elevation of the adjusting.

device.

The leg 10 is a one-piece or integral cast,

iron member having at its top the half box 11 by which it is pivotally hung and at its bottom the triangular shaped extremity 112- for the attachment and support of the usual foot.

The crank shaft 13 at each end as usual engages a box 14 that is slidably'c'onnected with the leg in order to allow the turning of the crank to swing or oscillate the leg. The crank box is guided in its rectilinear movement by a pair of wedge bars 15 which engage the box on opposite sides and their box engaging faces being parallel, the inclination being on the outer face of each Specification of Letters Eatent.

Patented Mar. 13, 1317.

wedge and the inclined outen face of each wedgeengages the correspondingly inclined side surface of a slot 16 which extends longitudinally of the leg. Each wedge is adjustablysecured in place by the bolts 17 so for each of which a slot 18 is provided in the leg so that by the longitudinal adjustment of the two wedges their'inner box en gaging sidesmay be nicely adjusted'to take up or compensate for wear. The" crank box can be removed. when necessary merely by the removing of the wedges and without any disturbance of'the crankshaft.

For each of the bolts 17 there are two tapped holes 19 in the wedge in one or the other of which the boltisplacedi I As the bolt can thus be shifted to different positions longitudinally of the wedge, I am enabled to make the slot 18 shorter which-is an important consideration in that it avoids weakening the'leg.

Extending between the two wedges "at their upper ends is asteel bar20 whichhas each end reduced and formed into a round horizontal projection 21 that enters a' hole in the contiguous wedge and slidably fits thethreaded portion of a vertical bolt 22 which passes through a bridge or cross bar 23 on the leg with its head above the bridge while below the bridge it is provided with a look not 24.. Said cross bar with the bolt forms a safety device so that should the screws 17 become loose the wedges will nevertheless not drop and it also is a means for the vertical adjustment of the wedges.

The wooden leg ordinarily used is built up of several pieces which are secured together by bolts, and is a construction undesirable from the manufacturing standpoint and also because the warping of the wood impairs the alinement; of the machine parts and renders it worthless. By my invention since the leg -ment at the other end and a slot with opponed sides in combination With a In testimony whereof Iaflixmy signature at 1 i H zbox situatedjn saidslot, Wedges in presence of two Witnesses. 5 2 sides of the? box in the slot, 2 FRED BLATTNER, JR. 7 chm; tending between and slidab'ly'con- Witnesses: 1 [1 the Wedges, and an adjustable GEORGE DmTRIGH, 1 V V i 5 g i ygg cross bar ARTHUR F. LAMSON. V V ggp t is patent maybe obtained fer five cents each, by addressing the fiommissioner of Patents, o es of th Washington D. G. 7 VP t

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