US1280875A

US1280875A - Leveling-machine.

Info

Publication number: US1280875A
Application number: US18404317A
Authority: US
Inventors: Thomas H Seely
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1917-08-02
Filing date: 1917-08-02
Publication date: 1918-10-08
Anticipated expiration: 1935-10-08

Description

LH. SEELY. LEVELING MACHINE.

APPLICATION FILED AUG.2| 1917.

T un .MAJ

Patented Oct. 8,1918.

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T.'H. SEELY.

LEVELING MACHINE.

APPLICATION FILED AUG.2, |917.

1,280,875. Patented 001;. 8, 1918.

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T. H. SEELY.

LEVELING MACHINE.

APPLICATION FILED Aus.2. 1917.

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THOMAS H. SEELY, OE MALDEN, MASSACHUSETTS, ASSIGNOR, RY MESNE ASSIGN- MENTS, To UNITED SHOE MACHINERY CORPORATION, OE PATERSON, NEW JERSEY, A CORPORATION OE NEW JERSEY.

LEVELING-MACH-INE.

Specification of Letters Patent.

Patented oet. s, 191s.

Application filed August 2, 19.17. Serial No. 184,043.

To all (whom t may concern.'

Be it known that I, THOMAS H. SEELY, a citizen of the United States, residing at Malden, in the-county of Middlesex and State of' Massachusetts, have invented certain new and useful Improvements in Leveling-Machines; and I do hereby declare the following to'be a full, clear, and exact description of the invention, Such as will enable Others skilled in thel artV to which it appertains to make and use the Same. j

The present invention relates to improvements in machines for leveling boot and shoe soles, and more; particularly to machinesvof this type which exert a direct leveling pressure upon the Shoe sole.

The Object of the present invention is to improve, the construction, organization and mode of operation ofv direct pressure leveling machines to improve the efficiency of the leveling operation. j

.lViththis object in view, a-feature of the invention contemplates the provision in a machine of this type having a pair of jacks ,and,cooperating forms, of a single cam and operative connections' between the cam and cach jack for alternately moving the jacks from a vertical position of presentation into an inclined. position of iessure, and means for stopping the cam with one of the jacks located in a position of pressure.

Still further features of the invention consistA in certain novel features of construction, combinations and arrangements of parts 'hereinafter described and claimed, the advantages of which will be obvious to those Vskilled inthe art from the following description. j ,Y j

The` preferred form of the invention is shown inthe accompanying drawings, in which ig'llre lis a front elevation of a direct pressure, sole leveling machine embodying the lfeatures of thel present invention; Fig. 2` is a side elevation of the machine shown in Fig. l.; Fig.V 3 is a detail of the brake mechanism; and Fig. 4 is a detail showing 'a sectional elevation of one of the form supports.v i 'The sole leveling'maehine shown in the illustrated embodiment of the invention is provided with duplicate jacks and coperati ng"forms 'to permit the leveling of one shoe sole duringthe removal of a finished Shoe anc? the application of a new shoe. To this end the machine comprises two jacks l0, coperating with forms 12 to level the shoe soles by direct pressure. The operating mechanism immediately connected with. each jack and form is duplicated, and accordingly a specilic description of the mechanism for operatin` one jack and coperating form will be sullicient for a complete understanding of the entire machine.

The jack l0 is removably mounted upon a supporting bed 14and is held thereon in the usual manner by a sliding pin 1G. The bed 14 is provided with a pair of downwardly projecting arms 18 having holes in their lower ends, in which is fixed a stud 20 which isloosely received in the upper end of' a link 22 pivoted on a stud 24 fixed in the upper end o'l a jack actuating lever 26. The link 22 is provided with an upwardly extending split portion 28, the upper end of which is grooved to receive a collar 30 of an adjusting screw 32, the rear end of which is threaded 'in a boss 3-1 depending `from the jack, and the :forward end of which is loosely received in a second boss 36. This construction is such that when the screw 32 is turned, it being held from longitudinal movement by the engagement of the collar 30 with the vertical slot in the part 28 of the link 22, the jack is moved through an arc of which the Stud 2() is the axis, to adjust the jack with relation to the cooperating form. When the jack has been adjusted in correct position relatively to its cooperating forni, the split end 28 of the link 22 is tightened upon the collar 30 by means of a screw 38, thereby clamping the jack 10 in a fixed position relative to the link 22. The ack is guided from the shoe-receiving position, that is, its position of presentation, as shown at the left of Fig. 2, into the sole leveling position, that is, its position of pressure, by means of a guide cam L0 secured at its front end, by means of a bolt 42, to a boss projecting upwardly from the front part of the frame la of the machine. The guide cam is secured at its rear end by a bolt 46 to a boss on the machine frame. The cam guide is provided with a cam groove 48, the forward end of which is in the form of a horizontal are, and the rear end of which is obliquely positioned and in alinement with the form 12.

lthe machine frame.

plete arene-half revolution. t .122 rotates, the camroll'.118 is forced outwardly by the other high point on the cam pulley 86.

Inasmuch as it -requires only a one-half revolution ofthe gear-wheel 7 8 to move the jacks from a position of presentation to a position of pressure and vice versa, it is necessary to stop the machine `when one cam roll 74 travels from the lowest point on the cam surface 75 to the highest point, and

`when the other cam roll 74 travels from the highest point to the lowest. For this purpose a treadle control or stop mechanism is provided, comprising a lever 112 pivoted on The lever 112 is connected by means of a link 114 with another lever 116 pivoted on the machine frame. The free end of the lever 116 carries a cam roll 118, which is arranged to engage the peripheral cam surface 120 of an annular cam 122 arranged concentric with the cam 76. The cam surface 120 is provided with -two high points and two low points, so that it completes lts functlonin one-half a revolution. A spring 124 forces the cam roll 118 into engagement with the cam surface 120. Vhen the treadle 108, which is guided in its up anddown movements between guides 126, is depressed so as to start the gear-wheel 7 8 `and its connected

cams

76 and 122 into rotation,this rotation being inthe direction of the y arrow (Fig. 1), the high point of the rcam surface 120, with which the cam roll 118 ,was at this time in engagement, passes beyondtheeam roll 118, and the spring 124 actsto force the camroll against the corresponding low point of the cam surface 120.

This movement of the lever 116 acts to swing the vertically disposed arm of the lever.112

`over the boss 1.32 on the upper side of the treadle 108, therebyY holding the treadle de pressed and the machine in operation while the gear-wheel and its connected cams com- As the cam surface 120, thereby disengaging the vertically disposed arm of the lever 112 from the boss 132 on the treadle 108, and thereby permitting the treadle to be raised and the machine stopped. t f- In order to stop the machine when the highest point on the cam surface 7 5 reaches the cam roll 74, so as to insure the greatest pressure on the shoe sole while the ack is in a position of pressure, a brake dev-ice is provided comprising a brake disk 134 secured to the main shaft 82. The rim of the brake disk 134 is in the form of a lateral flange 135, the inside circumference of which is adapted to be engaged by two semi-circular brake members 136 and 138 pivoted on one end of an arm 1`42 of a brake support 144 ifulcrumed on the main shaft 82. 'On the outer end yof an arm 146 of the support 114 is fulcrumed a brake aetlvlator 1418, which is in the form of a pin, the brake actuating end of which is elliptical and is received between the free ends of the brake members 136 and 138, and the other end of which is pinned ,to an arm 150. When the arm 150 is depressed, the brake actuator 148 is turned to present its least diameter to the free ends of the brake members. Then the actuator is in this position, the brake disk 134 rotates freely 'about the brake members, but when the arm 150 is raised so that the major axis of the ellipse is presented to the free ends of the brake members, they are caused to move radially outward and tightly engage the flange 135 of the brake disk 184. T hereupon as the disk continues to attempt to rotate, a stop arm 152 dependingfrom the hub of the support 144. is brought into engagement with a stop 154 fixed on the machine frame. A screw 156 regulates, within certain limits, the distance through which the stop arm 152 moves after the brake members 186 and 138 come into braking engagement .with the brake disk. The narrow space separating the end of the screw 156 from the stop 154- and through which the brake device as a whole moves when the brake is thrown into operation, is provided for the purpose of allowing the nmchine to stop without a sudden jar. The arm 150 is connected by means of an adjustable link 158 with the .treadle 108. lInasmuch as the brake mechanism and the clutch mechanism are both op` erated through the treadle 108, the conneen tions between the treadle and the lever 98 are such astopermit each mechanism to be separately and independently adjusted. liforeover, when the treadle is released so that thespring 110 acts to move the link 158 upwardly to throw the brake mechanism into operation to stop the machinel suddenly and without jar, the spring is relieved of the weight of the connections between the lever 98 and the sleeve 88, and therefore the braking` operation is performed more efficiently.

dien the leveling operation is completed and the jack is about to descend from its position of pressure to its position of presentation, a cam surface 160 on the cam 122, the hub of which is in rabbeted connection with the hub of the gear-wheel 78, acts upon an extension of the pin 162 upon which the roll 74 is fulcrumed. The action of the cam 160 against the pin 162 starts the jack out of its position of pressure, and thereafter the weight of the parts connected with the jack is suilicient to return it into the position of presentation.

lVhile it is preferred to employ the specific construction and arrangement of parts shown and described, it will be understood that this construction and arrangement is not essential except so far as specified in the claims, and may be ychanged or modiiied Without departing from the broader features 'of the invention.

The invention having been described, what is claimed is zl l. A sole leveling machine having, in combination, a pair of jacks and coperating forms, 'an actuating lever having a iiXed fulcrum and supporting each jack at one end, a single cam operatively 'connected With the opposite ends of both levers :tor moving the jacks alternately from a vertical position of presentation into an inclined position of pressure, and means for rotating the cam.

2. A sole leveling machine having, in combination, a jack, a coperating form, an actuating lever supporting the jack, means for adjusting the jack angularly With respect to the actuating lever,lmeans for operating the lever to move the jack from a position of presentation to a position of pressure and vice versa, and means for vguiding the movements of lthe jack to 'cause the latter to assume a vertical position of presentation and an inclined position oi pressure.

3. A sole leveling machine having, in combination, a pair of jacks and cooperating forms, an actuating lever having a fixed fulcrum and supporting each jack at one end, asingle cam operatively connected vvith the opposite ends 'of both levers for moving the. jacks alternately from a vertical position of presentation into an inclined position of pressure, and a stationary guide :tor controlling the movements off 'each jack.

4. A sole leveling machine having, in combination, a jack, a cooperating form, means for supporting the jack comprising a jack actuating lever, a link pivoted thereto and having the jack ulcrumed upon the free end, means for normally preventing the jack from turning on its fulcrum, and means for adjusting the jack about its 'ulcrum.

'5. A sole leveling machine having, in combination, a jack, a coperating Jform, means for actuating the jack to move it into a position oit' pressure with respect to the form, and means for initiating its movement from a position of .pressure to a position of presentation, said jack and its actuating means position of pressure.

being constructed andv arranged to permit the ack to vcomplete the last-named movement by gravity. ,f Y y 6. A sole leveling machine having', in 'combination, a jack, a form, means for actuating the jack to bring it into a p'ositionfof'pressure with respect to the form, comprising a lever, a cam, and 'cam driving means, and a second cam for te'm `orarily.'enga ging the lever to force the jacr out 'of a position of pressure.

7 A sole leveling machine comprising a lever pivoted to move about a fixed fulc'rum, a rotary cam operatively connected 'With the lower end of the lever, a shoe supporting jack, a link 'connecting the jack With the upper end of the lever, and means Jfor guiding the movements of' the jack.

8. A sol'e leveling machinehavi'ng, in combination, a pair of stationary forms, a pair 'of shoe supporting jacks cooperating With the forms, a rotary face cam, 'and a pair of actuating levers pivote'd for rocking movement about fixed fulcruin's, each supporting a jack upon its upper end and having the lower ends yarranged in operati'i'fe relation to opposite sides of the face cani t'o cause the jacks to be 'alternately moved by the cam Vfrom a position vof presentation rinto a position of pressure. 9. A sole leveling machine having, 1n combination, a jack, a cdper'ating form, meansv `for supporting the yiacl; comprising la lever,

a link pivoted on the leverfor supporting the jack, means for normally holding the jack in iiXe'd angular relation with the link, means for adjusting 'the jack'with respect to the link, and means for actuating vthe jack.

10. A sole leveling machine having, in combination, a jack, a coperatin'g form, actuating means for the jack kcomprising a lever ulcrunied vin vthe machine frame, a -cam mounted on a horizontal shaft for moving the lever, pivotal connections between the lever and the jack, and a guide for guiding the jack, the Whole being constructed and arranged to hold the jack in a vertical position of presentation and in an inclined THOMAS` H. sEEfLY Copies "of this 'patent may be 'obtained for five cents each, by addressing the Commissioner f Patents,

Washington, D. C.