US1172616A - Pulling-over machine. - Google Patents

Description

J. LOOSE.

mums-oven MACHINE. APPLICATION FILED FEB. 16, 1915; Y 1 172 616 Patented Feb. 22,1916.

2 SHEETS-SHEET I.

J. LOOSE. i

Y PULLlNG-OVER MACHINE! APPLICATION FILED FEB-16, 1915- 1,172,616, Patented Feb. 22, 1916.

2 SHEETSSHEET 2.

'm: COLUMBIA PLANOGRAP TON n c UNITED STATES PATENT orrion.

J'OHANNES LOOSE, or STUTTGART-CANNSTATT, GER-MANY, ASSIGNOR To THE FIRM or FORTUNA-WERKE, SPEGIALMASCHINENFABBIK, e. M. B. 1-1., or STUTTGART- CANNSTAT'I, GERMANY.

PULLING-OVEB. MACHINE;

, Patented Feb. 22, 1916.

Application filed February 16, 1915. Serial No, 8,697.

To aZZcuiwm it may concern, a

Be it lmown'that I, JoHANNEs Loosraof 31 Karlstrasse, Stuttgart-Gannstatt, in; the

Kingdom of Wurttemberg, German Empire,

civil engineer, have invented certain 'new and useful Improvements in Pulling-Over Machines, of which the following is a specification.

.. My invention relates to machines used in the manufacture of shoes for pulling over the upper leather onthe last, and its object is to provide a machine of this kind which" is both effective in use and easy to handle so. as to allow the-operator to work quicker and with more safety and to accomplish better results than with other ma chines designed for the same purpose;

To this end the invention consists of the machine and of the combination of parts therein as hereinafter described, and more particularly pointed out in the claims at the end of the specification.

The machine according to the invention consists of a device-for mounting the last,

g V the pliers employed to pullthe leather over the last; Fig. 4: is a rear-view of the pliers, In the hollow standard-a a hollow horizon said device being adapted tobe turned around a horizontal axis and beingprovided tail of the mechanism used for turning the last ;mounting device," the artsf of said mechanism being in positions corresponding to the positions of parts' shown in Fig 1; Fig. 3'is a side view,on alarger seale, o;f

tal shaft?) is rotatablymounted in. suitable bearings, and carries the parts 0, (Z for mounting and fixing the last- 6, and the devices for pulling the upper leather over the last. These latter devices are fixed to'one end of shaftbandcompris'e a row of pliers 1 9 adapted to be closed and pulled downward V b th'e action of'a gliding'piecef ioperated by" means of ahand wheel 0. I

string or chain h, common to all of them,

said stringjbeing conducted overfa "pulley p and two rows of pulleys 82, the pulleys'e being fastened'to a suppj'ort 'f' carridzby fthe Thepliers are controlledby a pulling hollow shaft 1), while pulleys s are mounted on the gliding piece 2' and within bearings provided'between the shaft 7) and the sup- .port f. A rack is on said liding piece gears with a pinion [on a sha' Z located in the hollow shaft?) which may be rotated by means of a miter wheel gearing m n and a hand wheel 0 connected with it. I By turning the wheel in one direction shaft Z is rotated and the gliding piece 2' is lowered, thereby pullingthe pliers g downward. A

pawl-coupling p g serves-to retain the gliding piece 2' in position, the ratchet wheel q being fixed to shaft Z, while the pawl is pivoted to a disk r fastened to the hollow shaft 6. Disk 1 is provided on its circumference' with two notches or disposed diametrically o ppo'site each other. Immediately below disk 1 a rod u is arranged with being connected to a treadle a, while itsupper end :6 is forced by a spring a upward against the circumference of disk 7' and into one of the notches w. By depressing footlevero therodu is drawn downward there-. by removing the'upperend of rod. u from in the standard a, the lower end of said rod notch 10;:The result is that pawl 29 is per.- 7

'mitted to swing on'its; pivot into engage Q-ment with the teeth ofratchet wheel 9. A

disk r moves on its axis, the last '0. together with its support swings about thejournal -Z..

' This continues untilthe upper notch of disk 0"; arrives at its lowermost pos1t1on..;and,

stands inline with the end 25. of rod'up The 'foot-levermo being released "the action of sented upwardly but is now presented down- Wardly. Inasmuch as the support has been turnedi180 pawl p is retained in. engagei ment with: the ratchet while the nails are besupport is turned 180 into its old position. f

Here the lock is released, the tension cord is" loosened, and the claws relaxedqso that the shoe can-be takenaway and ,newone inserted. As soon as-the foo-tlever o isvretion, whereas the clawsystem is freed: I i

163586;,13118 last support islocked i-n its p'osimeans of: pliers g. Up'on thetr'eadle'o being actuatedzthe end tiof. rod u is withdrawn? 1 95' ing driven, After a shoe is completed, the

from the notch 20 of disk 7', when by turning the hand wheel. 0 in one direction, the shaft 7) is coupled with shaft Z by means of clawcoupling 79 Q. Thereupon the support f which carries the last as well as the pliers, is turned upside down, thus assuming the position most suitable for pegging, the end t of rod 20 being then forced back by the spring into theopposite notch 20 of disk 7'. By turning the hand wheel in the opposite direction shaft b and disk 1 are uncoupled and. the support 2' is lowered and the pliers g are pulled downward. As shown in Fig.

2, the upper end t of rod 10 is in contact withthe free arm of pawl 7) whenever it has entereda certain one of the notches w, and

serves to hold the pawl" away from the ratchet wheel.

The pliers which are used for pulling the leather over the last are shown in Figs. 3 l and 4. They comprise a jaw 1 at the end of is controlled by the pulling cord or chain h I mentioned above. A spring 11 pressing against arm tends to keep the pliers open; a spring 12 serves to press arm 8 against arm. 2.

The operation of the pliers is as follows: The arms 4 and 8 are grasped between two fingers, thus causing jaw 3 to. grasp: the

lower edge of the upper leather and to press it against jaw l as tightly as possible, the pawl at the same time entering the recess formed by the projection 5 on arm 4. Now the cord or chain It is pulled downward in the manner described above, thereby pulling the upper leather tightly over the last. The pull exerted. on. the cord it not only causes. the pliers as a whole to move downward, but also the jaw 3 to be pressed tightly .against H jaw 1, thepull being exerted uponarm 4 through the medium. of arm 8, pawl 6 and projection 5. When the operation of pulling over has come to an end, there is no need for discontinuing the pull exertedupon cord h; by pulling the string 10 the pawl 6 is disconnected from arm 4 and the jaw 3 is forced intothe open. position by spring 11. This arrangement is especially useful in the quick removal of the leather from the last and in displacing single .pliers without being. compelled to move the others.

The pliers are fastened to .part 7 vof the machine by means of bolts fixed to the ma.- chine and projecting through the slots of the forked arms 2 of the pliers. As shown in the drawings the arm 2 of theindividual the standard cl under the action of cord 72,.

The uppermost pulleys y serving to guide the pulling cords h are located behind the pliers in order to render the movement of oscillation. possible. The lower end of each".

cord h is fastened to the axle of a pulley 2,;

and a pulling string h" common .to all the pulleys a is acting upon them in pulley block: fashion.

Preferably the bolts '0 w are fastened to a vertical pivot in order to render them easily movable in a horizontal direction.

I claim 1. In a pulling-over. machine a horizontal f shaft, a last support thereoma row of pliers disposed on said support, tensionlngmeans for said pliers, means for turning the sup-.

wheel at one end of this shaft for tightening port on said horizontal shaft, a driving said tensioning device, drivingwheels on the other end of said shaft, means for coupling the turning and tensioning means, and means for releasingthe coupling between the turning and tensioning means.

2. In a pulling over machine, incombina-w tion, a last support; a plurality of rows of screw threaded bolts arranged on said sup port, one above the'other, and pliers move ably mounted in a substantially vertical position on said bolts. I

3. In a pulling over machine, incombination, a. last support, a plurality of rows of: screw threaded bolts arranged on said sup: port, one above the other, stops and set screws on the lower :row of bolts, set screws on the upper row of bolts, pliers 'movably. mounted-in a substantially vertical position on said bolts and between the stop of the lower bolt and the -set :screws on the bolts; and means for operating the pliers.

4.. Ina pulling over machine, in combina-; tion, a last support, a row of pliers movably} fastened to said support by one arm. each, intermediate arms pivoted to thepivot pins of said pliers, pawls pivoted to said intermediate arms, projections on the free arms of said pliersopposite said pawls and means for disengaging said pawls from said projections.

5. Ina pulling over machine, in combination, a last support, a row of pliers-mow ably fastened to said support by onearm; each, intermediate-arms pivoted to the pivot pins of said pliers, pawlspivoted to saidintermediate arms, projections on the. free arms of said pliers'opposite said pawls,

springs adapted to openysaid pliers and to i 1,172,616 f V V tions on said free arms, springs adapted to In testimony whereof, I afiix my signapress said intermediate arms toward the ture, in presence of two witnesses. fixed arms of sald pllers, means for pulling said intermediate arms backward and down- J OHANNES LOOSE. 5 ward in the direction of the fixed arms and Witnesses: I

means for disengaging said pawls from said v ANTON ARETZ,

projections. V ERNEST ENTLUMSUN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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