US1571710A - Cementing machine - Google Patents

Description

Feb. 2 1926. 1,571,710

J. W. COSGROVE CEMENTING MACHINE Filed Sept. 1923 Patented Feb. 2, 1926.

UNITED, STATES enrich.

JOHN W. COSGROVE, OF MEDFORD, ll/JIASS'AOEIU'fiETTF-i, ASSIGNOB TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEYV JERSEY, A CORPORATION OF NEW JERSEY.

CEMENTING lMACI-IINE.

Application filed September 8, 1923.

To all whom it may concern:

Be it known that I, JOHN WV. Coscnoviz, a citizen of the United States, and resident of Medford, in the county of Middlesen and State of Massachusetts, have invented certain Improvements in Cementing Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

My invention relates to cementing machines, as those which are employed for coating the edges of shoe-uppers.

lVhen a cementing machine having a roll or other rotatable work-engaging member, as one which is supported upon or driven by a shaft, is used in connection with textile fabrics, threads become separated from the unfinished edges of the fabrics and tend to wind about the shaft. Mixed with the cement, these threads get between the roll and adjacent elements, the work-gage for example, forming a mass which interferes with theoperation of the machine. Against this a partial guard may be furnished by the eX- tension of the rear of the gage, as described and claimed in an application in my name filed October 3, 1922 and bearing the Serial No. 592,152. It is an object of the present invention to more completely prevent threads and like matter from approaching the rotatable supporting member. This I accomplish by providing adjacent members, one of which engages the work, with a cooperating depression and projection which furnish an almost complete bar to the pas sage of material. Re ardless of this intermeshing of the members, the fact that the gage member has a portion encircling the supporting shaft greatly increases the elliciency of the guard.

The work-engaging members of cementing 1 the cementing operation to proceed or to be arrested, with freedom in the latter relation from the work-engaging element contacting with the applying member. Such move ment, because, for example, of the weight of the parts, is opposed by considerable resistance, and, as it must be repeated frequently, throws asubstantial burden upon Serial No. 681,692.

the operator. Another object of the invention is to facilitate the movement of the work-engaging member, this end being attained by inter-posing a lever between the treadle and engaging member. These elements are so related that the pressure applied to the trcadle is multiplied and the op-' erator need exert little force. To restore the work-engaging member to normal, a spring is employed and this is so joined to the sy tem that its force upon the work-engaging member is increased and it may therefore be relatively light.

In the accon'ipanying drawing:

Fig. 1 shows in broken side elevation cementing machine embodying my invention in one of its forms,

Fig. 2 is an end elevation ofthe elements more closely co-operating with the work, and

Fig. 3 is a perspective view of the worksupporting roll and the gage, these being separated from one another to better snow the form of the guard elements.

Generally, the illustrated apparatus has the characteristics of that disclosed in Patent No. 1,380,860, dated June 7, 1921. It includes co-operating work-engaging members 10 and 12, the former consisting of a cement-applying roll and the latter a worksupporting roll. The roll 10 turns in a frame 14 and receives cement from an ele vated receptacle (not illustrated). In an arm 16 pivoted upon the frame is journaled a shaft 18, and upon this is mounted a roll 12 having a rigid section 20 fast upon the shaft and a yieldable section 22. Surround ing the inner side of the section 20 concentric with and adjacent to its periphery is an annular depression 24:, this completely encircling the shaft and receiving a projection 26. The projection is also annular, extending for a considerable distance about the shaft and is formed upon a portion 28 of a work gage 30. These elements 28 and 30 entirely surround the shaft. The gage is adjustably held upon the arm 16 by a screw 32 threaded into the arm and operating in a slot in a shank 34 extending horizontally from the gage. The roll 12 is correspondingly adjustable along its shaft, so the adjacent surfaces of said roll and the gage may be maintained in close proximity, and the engagement of the depression 24 and projection 26 assured. The gage has on its inner side a vertical surface 36 for contact with the edge of the work, this enabling the operator to determine the correct relation to the applying roll. It will be seen that not only does the sideof the roll 12 operate so closely to the gage that there is little opportunity for threads to reach the shaft 18, which is thus guarded about its entire circumference, but that by-the extension across the space between the roll and the gage of the projection 26, there is introduced'a positive barrier against access to the shaft.

Thesupporting roll 12 is shown in Fig. l ofthe drawing as arranged for normal separation from the applying roll 10, to be raised into active position after the work has been introduced between these rolls. This elevation of the supporting roll may be accomplished by link 40 acting upon the arm 16, as in the patent previously mentioned. .Fulcrumed at 42 on bracket 4E4, when the machine is ofa bench-type, is a generallyhori- Zontal actuating member 46, the short arm of which is joined to the link 40. The long armotthe lever is united by a vertical link 48 to the short arm of a treadle-lever 50 pivoted at 52 upon the bracket. Upon the outer extremity of the lever 50 is situated a foot pad 54:, this being upon'thelong arm of the treadle-lever. The link I8 has an upward extension '56 :curved outwardly, and between its approximately horizontal end and a relatively fixed point furnished by a hook 58 extending from the end of the bracket 44, 'is a tension-spring 60. It is to be noted that when the operator depresses the toot-pad 54.- to raise the arm 16 and the work-supporting roll, he applies the force-to the long arm of the lever 50, this being transmitted from the short arm to the long arm of the lever L6, which, in turn, by its short arm actuates the .link 40. Thus the force is twice augmented by the leverage and the elevation of the roll 12 may be made easy, even if thereis considerable resistance. The tension of tube spring '60 also rhas :its effect multiplied by being -Iexertetl :upon the long arm of the actuating ilever. As a result of this, .a substantial depressing force is applie'd'to the arm 16 b-yaspring of not very great strength. The operator also has the benefit of the leverage given by ithe treadle to overcome :the resistance of this spring.

Having described my invention, what I claimasznew an'd'desire to secure by Letters Patentiot the United States is:

1. In a =cementing machine, a rotatable suppor.t,a work-engaging member mounted upon Fthe support, and a relatively stationary member in proximity :to which the workengagi'ng -member turns, "one ofthe members being provided with a depression and the other member having a projection entering the depression during the rotation of the support.

2. In a cementing machine, a rotatable support, a workengaging member vmounted upon the support, and a relatively stationary member in proximity to which the work- 'engaginginember turns, one of the members being provided with an annular depression and the other member having a :projection extending for a considerable distancenbove the depression.

3. In a cementing machine, .an applying roll, a rotatable worksupporting roll, and a work-gage situated in proximity to one of the rolls, said roll .and work-gage havingn (to-operating projection :and -.depression.

4. In .a cementing .macliine, .an zapplying roll, :a rotatable eshaft, a work-supporting roll mounted upon the shaft, .and :a workgage having a portion encircling the shaft.

5. In a cementing machine, an applying roll, a shaft rotatable below the :applying roll, a work-supporting roll .mounted :upon the shaft andshaving an annular.grooveyand work-gage situated adjacentto zthe worlo supporting roll and provided with a portion surrounding the shaft and having a projection extending into therolhgroove.

(3. In a cementing machine,.a movable-support, a work-engaging :member mounted thereon, a treadle, and an actuating Ilever connected to the treadle and arranged "to impart a bodily movement to the support.

7. In .a cementing machine, a :movable work-engaging member, an actuating lever having a longanda short arm, the latter being joined to the work-engaging member and a treadle having a short-armconnected withithe longa'rm of the lever.

18. In a cementing machine, a movable workengaging member, an actuating lever having a Ilonganda short arm, the latter being joined to'the work-engaging member, "a treadle having a short arm connected with the long arm of the lever, and a spring-ex- JOHN W. COSGRQVE.

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