US1410590A - Shoe-ripping machine - Google Patents

Description

C. S. VNORDEN. SHOE RIPPING MACHINE.

y APPLICATION FILED MAR. I3, I920 ,410,590. Patented Mali.. 28, w22.

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C. S. NORDEN. SHOE RIPPING MACHINE. APPLICATION FILED MAR. Is. 1920. 15,410,590.,

c. s. NORDEN. SHOE RIPPING MACHINE.

v APPLICATION FILED MAR. I3, II320- I 1,410,590. Patented Mar. 28, i922.

50 which NNE@ CARL S. NORDEN, OF EAVERHILL, MASSACHUSETTS.

SHOERIPPING MACHINE.

paresse,

Specicaton of Letters Patent.

Patented -Mar. 28, i222.

Application led March 13, 1920. Serial No. 365,434.

To all whom it may concern:

Be it known that I, CARL S. NoaDnN, a citizen of the United. States, and a resident of Haverhill, county of Essex, State of Masv sachusetts, have invented an Improvement in Shoe-Ripping Machines, of which the following is a specification.

In the manufacture of shoes it occasionally happens that the upper is torn, or otherwise damaged beyond repair, so that all that can be done with it is to rip it apart and use undamaged portions for other shoes.

Usually soles of such shoes can be used again provided the stitches which connect it to the upper are cut or removed, so that the upper may be separated from the sole.

To do this with a handknife, without injury to the sole, is a slow process and with some shoes it cannot be done in this manner, on account of the fact that metal fasteners are employed. j

In the manufacture of shoes, it is frequently necessary to remove loose or ragged portions ofthe soles which are frequently present on the flesh side, the common practice being to remove such portions with a hand knife, this operation being known as fieshing The objects of my invention are to provide a machine of simple design which is adapted to perform the operation of cutting` the stitches, or other fastening means between the upper and sole of a shoe, so that the upper may be readily separated from the sole, also to provide a machine which may be readily adapted to cutV different forms of upper fasteningr means, including vthose which are wire fastened, and which may be further adapted to perform the vfleshing operation on soles above referred to.

I accomplish these objects primarily by providing'a machine having'in combination with a single feed roll for the tread face of the sole, a knife which is movable transversely of the direction of the feed, so that the cutting operation may be performed without substantial opposition to the feedingl action. f j

Preferred embodiments of the invention are shown 1n the accompanying drawings 1n Figs. l and 2 are, respectively, a plan and an endY elevation of a machine embodying my invention.

Fig. 3 is a sectional View at line 3 3 of Fig. l.

l? ig. 4 isa detail plan view of one form of cutter which I employ. 4

Fig. 5 is a sectional view,`similar to Fig. 3. illustrating the manner of use of the machine for sole fleshing.

Figs. 6 to ll are detail plan and sectional views of modified forms of cutters which are employed for different classes of work.

Aes shown in the drawings. the machine comprises two side frames 10, having a main shaft l2 journaled therein at the rear ends thereof, said shaft being adapted to be constantlyv driven. A feed roll 14, which is covered with corrugated rubber`v or some other suitable frictional material, which will not damage the grain surface of a sole, is journaled in the front end of said frames and is arranged to be driven from the main shaft by intermediate gears 16, 18 and 20, so that the movement thereof above its axis is to the rear, as indicated in 'Fig 2.

A guard plate 22 is arranged to extend from'one side frame to the other, and is provided with ears 23 at its endsthrough which horizontally disposed pivots 24 extend, said pivots being mounted in blocks 26, which are held in guideways 27 on the side frames, and said blocks being pressed downwardly by springs'28. Vertical movement of the rear portion of the plate 22 is thus permitted by the yielding of the springs 28, and to permit yielding to greater extent at one end than at the other, the pivots are made to tit somewhat loosely in the blocks 26 and the latter are made to fit somewhat loosely in their guideways.

A guide plate 30 is secured to the plate 22, by screws 33, or other suitable means and said plates have oppositely disposed grooves formed therein, in which a knife 32 is arranged to slide therebetween, said knife having longitudinal slots through which guide pins 31 pass, said pinsbeing liXed in plate 22. A cam 34 is secured on the end of the main shaft l2 and a cam lever 36 is mounted to swing on a pivot 38 at an intermediate i Said knife 32 is so arranged between the plates 22 and 30 that its cutting edge ex tends beyond the edges ofthe plates for a sufficient distance to enable the saine lto operate, as hereafter explained.

5 The under side of the plate 22 is'bevelled from its front edge to form a work-engaging face 22, and the plate isso arranged with relation to the roll 14 that its `face 22LL will be moved into close proximity to the roll surface closely adjacent its frontedge, when swung downward toits fullest extent, as indicated in Fig. 2.

A coil spring 42 is attached toplate 22 in position to draw the same towards'the roll andan. arm 48 is also connected to said plate in such a position that, when it is pressed, or drawn down, the plates 22 and 30 and knife therebetween will be swung upward.

-l'f'it is desired, for example, to remove the upper from the soleof a turn shoe, the arm 44 is depressed to raisethe plate 22 sufficiently to permit the end of Vthesole to be inserted beneath it, 4while the tread `surface of the sole restson the sur-face of the roll. In this position the seam which connects the sole and upper will,by the feeding action of the roll` be pressed against the knife edge, and, as theknife will be rapidly reciprocating it will make a drawing cut on the stitches withwhich it is engaged and thus cut the saine, Ywithout substantial resista'nce to the feeding action on the shoe, by VYthe frictional engagement of the roll or'by the operator'in pushing-the shoe 'against the knife.

While this operation is taking place, the face 22a ofthe plate 22 will rest on the upper surface of the sole and act to prevent the knife from cutting into 'the sole while the upper plate 30 will act to support the upper as itis cut away from the sole, as indicated in Fig. 3.

The upper will thus be rapidly severed frplm the sole, as the shoe is passed overthe ro In case of unevenness in the sole which cannot be compensated for by the up and Vdown swinging movement of the knife. the latter Awill vbe permitted to tilt upward at pivots 24 against the action of the springs `28, which movement is permitted without interfering 'with the reciprocating action of "theknife, which is adapted to be driven in th'e different positions in which it is held.

While the form of knife-above described A,will besuitable for cutting thread, kit is `not suitablewhere metal fasteners are employed.V

lasin certain formsbf McKay shoes, 'in which-:case ,I Vpreferably employ Vthe -con- Astruction'of Figs-8, 9 and 10, in -whichthe plate44,otherwi se correspon ding in Vall parliticula'rs to thep'late 22, already described, is provided with a series of sharp edged7 fp'ointed,-orftapering fingers44, at front either end by the bodily movement'of theV edge, and a knife 46, (corresponding to the knife 32) is also provided with sharp edged teeth 46 formed'to have a shearingiaction with the fingers 44, a top plate 48, similar tothe plate 30, is secured onthe plate 44 by screws 49, 'the front edge of'said plate 48 terminating so as to expose the end portions of the teeth 46a, the latter also extending beyond the ends of the fingers 44EL to ap-V proximately the same extent that they e`xtend beyond the `edge of the guard plate 48, Vas indicatedin Fig. l0. Y

This form of cutter will not only perform the work of the cutter Yfirst described, but willalso cut fasteners of small -wire such as are employed in certain lkinds of shoes'the manner of operation in removing the upper Afrom the soles with `this form-of cutter, Vis the :same as that already described, except 4that the knife'makes apositive shearingcut, 85

instead of a drawing-cut, in severing ythe fastenings. Y

`By a further modification inthe form of cutter, the machine Vmay be adapted for the Y work of fleshing soles, and, for thispurpose, a form of cutter is employed. which issimilar tothe `form last described, but differing therefrom in certain details now to be described. V

As shown in Figs. 6, 7 and 11, the cutter comprises lan underplate V50, similar inV form to the plate44, but having shearing fingers 5() ,.which areof somewhat Vgreater length than the fingers 44av which taper to slightly blunt or `dull points, and a knife 52, which issimila'rto knife 46, except that its teeth 52a, which operate in shearing relation tothe fingers 50%do notextendbeyond the ends of said fingers, but terminate Y slightly short 'of the ends thereof. The 105 knife 52 is held in `position by screws 54,

which pass lthrong/rh slots in the knife and `are secured in the under plate 50.'` `The relative arrangement `of Vthe roll and 4cutter-is such that the under sides of the fingers '130% 110 close to-theircnda'may rest on the feed roll. Then ansole is to be fie-shed, it is inserted beneath the cutter, in afmanner similar to that alread.7 described, v`so that `the fingers 50a rest on theflesh side ofthe sole-andgex- 115Y tend in between the loose fibers ithereon, anchas the sole is fed, they will be'cairried into engagement with the; reciprocating 4knife 52 -4and shearcfloff. Vas "indicated in mitted to swing vertically, and Atilt, so that either Vend `is yhigher than the other, Vthe Y work-engaging faces of the fngershOafwill usually be held in` engagement with thesolld `portions ofthe sole throughout the rentire width of any portion which happens'to be enga-ged.'v As -there will be but slight re- SStLnee to the .feeding action of the sole after the sole has been inserted beneath the cutter, the sole will, in most instances, be fed automatically, but, the arrangement is such, that the operator may easily assist the feeding action, if necessary.

it will be apparent from the foregoing description that the manner of operation proximately parallel relation to the elements of the roll surface and to permit movement of the plate to and from said surface, and spring actuated to move towards said surface, a knife supported by said guard plate with its cutting edge in operative relation to the front edge of said face, means to operate said knife to move its cutting edge longitudinally of the axis of said roll, and means to rotate said roll to feed the work to the knife.

2. ln a machine for operating on shoe soles, a feed roll, a cutter comprising a guard plate movably supported in the rear of said roll and having a work-engaging face on its under side, adjacent its front edge and in proximity to the roll surface, a knife reciprocally mounted on the upper side of said plate with its cutting edge in operative relation to the front edge of said face, means for lifting said plate to permit the insertion of the work between said face and roll, yieldingly actuated means for pressing said plate downwardly, to hold said face against the work, means to reciprocate said knife in the different positions in which it is adapted to be held, and means to drive said roll to feed the work towards the knife.

3. In a machine for operating on shoe soles, a feed roll, a guard plate having a work-engaging face on its under side and extending from its frontedge, pivotal supports for said plate in the rear of said roll arranged to hold said face in proximity to the surface of the roll and to permit swinging movement thereof to and from said roll in approximately parallel relation to the elements of its surface, manually controlled means for varying the vertical position of said plate, a knife carried by said plate with its cutting edge adjacent the front edve of said plate, and means for reciprocating said knife longitudinally of said odge of said plate in the different positions thereof and means for rotating said roll to feed the work to the knife.

4. In a machine for operating on shoe soles, a feed roll, a cutter comprising a lower guard plate having a sole engaging face on its under side at its front edge and supported with its said face in approximately tangential relation to the roll sur-` face, a knife reciprocally mounted on said plate with its cutting edge adjacent the front edge of said plate, an upper guardplate arranged above said knife and connected to said lower guard plate, means for lifting said cutter, to permit engagement of said face with the sole while resting on the roll and for yieldingly holding said face against the sole and means to rotate the roll to feed the sole to the cutter.

5. A machine for1 operating on shoe soles comprising a feed roll, a movably mounted guard plate having a series of tapering iingers projecting from its front edge, means for yieldingly engaging the under sides of said fingers with the upper sides of a sole resting on said roll, a knife reciprocally mounted on the upper side of said plate and formed to provide a series of projecting teeth arranged to operate in shearing relation with the sides of said fingers and means to reciprocate said knife as a sole is fed thereto by said feed roll.

6. A machine for operating on shoe soles comprising feeding means for engaging the under side of a sole and a cutter for operating on the upper side of a sole supported by said means, said cutter comprising a movahly supported plate having a series of tapering ngers projecting from its front edge and adapted to rest on the upper sole surface adjacent their ends, a knife reciprocally mounted on said plate and having a series of tapering blades movable in shearing relation with said lingers, spring actuated means for pressing said fingers against the sole and means to reciprocate said knife.

In testimony whereof, l have signed my name to this specification.

CARL S. NORDEN.

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