US1564523A - Machine for finishing the toe and insole of lasts - Google Patents

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Deco 8, 1925 v I I,564-,523

W. J. BURKE ET AL MACHINE FOR FINISHING THE TOE AND INSOLE OF LASTS Filed Jan. 10, 1923 llllll m! I i/[MIMI a l T 4 BY ZI I A TTOR/VE Y5 Patented Dec. 8, 1925.

WILLIAM J'. BURKE AND HEKRY G. CLAUSING, OF PORTSMOUTH, OHIO.

MACHINE FOR FINISHING THE TOE AND INSOLE'OF LASTS.

\ Application filed January V10, 1923. Serial no. 61d,835.

To all whom it may Be it known that we, WILLIAM J. BURKE and HENRY G. CLAUSING, citizens of the type of last finishing latter there .Toe and Insole of Lasts,

or holders,

'toe,

United States, and residents of the city of Portsmouth, county of Scioto, and State of Ohi0, have invented certain new and useful Improvements in Machines for Finishing the of which the following is a specification.

ur invention relates to an improvement in machines for finishing lasts, and an object thereof is the provision of an improved machine for finishing" the toe and insole of lasts particularly lasts of the hinged type, where in the last and a model are held in chucks the chuck engaging the last between the breaking point of the last and the and in such a way as to enable the toe and the position of the last in the finishing operation.

It will be appreciated by those skilled in this art that a machine of the type above referred to is of material advantage in the finishing of lasts as compared with the usual machine, particularly when finishing hinged lasts, in view of the fact thatjn the present machine the last is chucked prior last finishing machines chuck the last at the toe and heel. In the former case the last is. held rigidly in place, while in the is always more or less yield or give to the last owing to the hinge or joint.

Referring to the accompanying draw- I a i f r i Fig. 1' shows an embodiment of our invention in plan,-

Fig. 2 is a section taken substantially on the line 2-2 of Fig. 1; 3

Fig. 3 is a section of the improved chuck shown in Fig. 2, the section being taken substantially on the line 33 of'Fig. 1;

Figs. 4 and 5 are modified forms of hold- 1n position on the chuck.

Referring to ing devices for holding the last and model the drawings in detail,-1

designates a chucks upporting rod which is. (not shown) to permit of the rod being oscillated.

suspended from. .hangers On the chuek-supporting rod we mount a chuck 2 provided for the purpose of holding a last to befini'shed and a model last to be du Heated.

- e chuck comprises a bed plate 3 adapted respect to the bed insole to be finished withoutchanging" the chuck during between the hinge and toe whereas evenly upon and insole line.

to be rotated oroseillated upon the rod 1 and also to be moved axially thereof. The bed plate is bifurcated at its. front end to 'prov1de projections 4 and 5 each of. which carries a vertically ing upwardly from the face of the projections', these pins providing a support for the toe of the last tobe finished and for the toe of the model, the pins engaging the under side of boththe last and model.

Slidably mounted on the bed plate 3 is a plate 7 adapted to be moved endwise with plate, this plate also being bifurcated to provide extensions 8 and 9' corresponding to the, projections and 5 T0 above referred to. The extcnsidn 8 carries a pair of pins 10 and 11 extending upwardly from the face thereof while the projection 9 carries a pair of similar pins .12 and 13.

The pins 10 and 11, are adapted to engage jection 5 is provided with a similar rod 15 7 each of these .rods being provided with a e wood screw thread to enable them to be screwed into the bottom of the last and model. The rods 1st and 15 are preferably positioned centrally withrespect to the pins I 6, 10, 11 and 6, 12,13 to ensure that the last and model will be pulled or drawn down held fixedly against the supporting pins. 1 In operation and 6, 12 and rods Hand 15 screwed into the bottoms of the last and model to draw the samefirml upon their respective pins. The chuck is then manipulated to; bring the toe and ini i into engagement witha 1.

sole of the model v guide wheel 17 and to at the same bring the enable the last to-be duplicate the model.

-r e the upporting pins for extending pin 6 project- 80 i plate 3 carrying with it the so i the bottoms of the-last to be finished and the model are spotted to accord with the location of the. pins 6, 10 and 1 1 13 relative tothe toe and one The .last and model are then placed in position upon these pins and the the last and model as Well as the rods 14 and all engage the last and model on the under side which permits the finishing of both the toe and insole of. the last and as previously pointed out by merely sliding i the last is necessarily held rigidly throughout the finishing operation.

lln Fig. 4 we have modified the construction of the rods 1a and 15 by which the last to be finished and the model last are drawn.

down in place upon their respective supporting pins. lFrom this figure it will be seen that we provide pins.18 which project through the i'aceof the projections 4: and 5 of the bed plate 3 these pins at their upper ends being provided with an offset 19 adapted to engage the walls of an opening 20 in the under side of the last to be finished and the model last. The pins are held against longitudinal movement in the bed plate 3 by the members 21 and 22. When the last to be finished and the modellast are placed in position upon the chuck the pins 18 will enter the openings 20 in the last and model and may then be given a par tial rotation to bring the offset 19 into firm engagement with the wall of the opening 20 so as to hold the last and model against movement on their supporting pins.

111 Fig. 5 we have provided another modification of the pins 14 and 15. lin this form of our invention the bed plate 3 is provided with upwardly projecting pins 23 corresponding to the pins 14 and 15 of Fig. 1 and the last to be finished and the model I last are each provided with a split bushing 24 the peripheries of which are provided with projections 25 or their equivalent so as to hold the bushings in place in the last and model. When the last and model are placed in position in the chuck the rods 23 are screwed into the bushings 2% to draw the last and model firmly down upon their respective supporting pins the bushings exmenace panding under this operation so as to not be drawn out of the last and model.

We claim:

1. ln combination a chuck, a support carried thereby for supporting a last block on the chuck, adjustable supports, said adjustable supports being adjustable relative to the first mentioned support to adapt the chuck for last blocks of difierent sizes, and a securing member adapted to engage the underside of the last to hold the same in place upon said supports.

Y 2. In a machine for finishing lasts, a rod, a bed plate slidably mounted thereon, a last support carried by said bed plate, a plate slidably mounted on said bed plate, last supports carried thereby, and a screw carried by said bed plate and adapted to draw a last into rigid engagement with said last supports.

3. lln a last finishing machine, a chuck for holding a last to be finished, said chuck comprising a bed plate, a last support mounted on and extending upwardly from the forward end of said bed plate, a plate adjust-ably mounted upon said bed plate, a pair of last supports mounted on and entending upwardly from the face of the lastmentioned plate and a screw carried by said bed plate and held against axial movement therein, said screw being adapted to screw into the bottom of the last to be finished to draw the same into rigid engagement with said last supports.

4:- ln a machine for finishing the toe and insole of a last, a chuck for holding a last to be finished, supporting pins carried by said chuck and upon which a last to he finished is supported one of said pins being adjustable to vary the distance between the pins, and a rod carried by said chuck to be screwed into the last to draw the same firmly into engagement with the supporting pins, said pins and rodengaging the last on the under side thereof to permit the toe and insole to be finished without resetting the last in said chuck.

'lhis specification signed this 30 day of Dec, 1922.

WILLIAM J. BURKE. HENRY G. GLAUSlNG.

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