US1559367A - Cementing machine - Google Patents

Description

Oct. 21,1925. 1,559,367

H. R. POLLEYS CEMENTING mcnnm Filed A rii 11, 1925 2 Sheets-Sheet 1 INVENTOR HERBERT RfoujYs g P// l HIS AT ORNEY Oct. 27, 1925. 1,559,367

H. R. POLLEYS CEMENTING MACH INE Filed April' 11, 1925 2 Sheets-Sheet 2 my 3 5g. 5

INVENTOR HERBERT R. FoLLEYs Y I 5 H15 ATT RNEY Patented Oct. 27 1925.

UNITED STATES PATENT OFFICE.

HERBERTR. POLLEYS, OF HAVEN, CONN ECTICUT, ASSIGNOR TO NATIONAL INDIA RUBBER COMPANY, OF BRISTOL, RHODE ISLAND, A. CORPORATION OF RHODE ISLAND.

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Application filed April 11, 1925.. Serial No. 22,292.

To all whom it may concern:

Be it known that I, HERBERT R. POLLEYS, a citizen of the United States, residing at New Haven, county of New Haven, State of Connecticut, have invented certain new and useful Improvements in a Cementin Machine, of which the following is a fulfi clear, and exact description. P

,- This invention relates to a cementing ma chine, more particularlyto a machine for cementing the lower portions and tip of a lasted shoe upper.

In the manufacture of rubber or composite fabric and rubber footwear, it is customary in some styles of such footwear to apply a rubber strip known as a foxing to the lower portion of a lasted upper, which foxing genoperative in order that the cement may be evenly spread and the aforesaid thickened bead of cement formed at the edge of the cemented portion and that such edge may be even and not wavy; If through carelessness or inexperience the cemented portions are applied with an uneven or wavy edge, por tions of cement-extending beyond the foxing strip or toe tip mar the appearance of the finished article and may cause it to be classed as a second. Moreover the cost of such work when manually done is high, and the eflort on the part of the operative to work rapidly increases the percentage of defective work. Comparatively few operatives possess the steadiness of hand and other'physical qualifications necessary to do good Work even erally extends between the sole and ther after longtraining.

upper in the finished article and not only strengthens the article at this point but in the case of articles with fabric uppers it also Waterproofs thisportion of the article and it also strengthens the bond between the edge of the outsole and the shoe upper. In certain types of footwear such as above mentioned, a rubber toe tip is also applied. In order to secure a better union between the upper and such foxing or toe tip, it is customary to cement those portions of the upper to which the parts are a lied, and in the case of footwear having fabric uppers, such cementing is in fact essential, since a good bond cannot be obtained directly between the fabric upper and the sheet rubber foxing or'toe tip applied to it. In addition to cementing around the upper at the oint where the foxing is to be applied, it 1s desirable to have a thickened narrow portion or bead -of cement at the edge of the cemented portion at the point where the edge of the foxing is disposed. This bead of cement is desirable because of the fact that theedge of the foxing sometimes tends to curl away from the shoe, while the thickened bead of cement insures the adhesion of the foxing strip at this point. It is alsonecessary to cement the bottom of the lasted shoe.

Prior to my invention, the work of cementing the upper at the points where the foxing and toe tip are applied and the bottom or sole portion has een practically all manually accomplished. To do this work manually requires a skilled and careful An object of my invention is to improve the quality and reduce the cost of rubber and other footwear. Another object is to provide a rapid, accurate and economical means for mechanically cementing desired parts of rubber or canvas and rubber footwear. Another object is to provide a machine for both cementing a portion of the article and forming a'cement bead at the edge of the cemented portion.

For a detailed disclosure of the nature and objects of the invention, reference is had to the accompanying specification and drawing, in which latter:

Figure 1 is a top plan view of the machin of my invention with parts removed for clearness; t a t Figure 2 is a side elevation of the machine; t a,

Figure 3 is a detailed front elevation of the cement bead forming means with parts Figure 8 is a perspective of oneof the toe tip cementing brushes.

Referring to the drawings, the numeral 1 designates the frame of the machine, at

the top of which is disposed a table 2 which is inclined at an an le of about 30. A shaft 3 is journaled in arings 4 and 5 at the back of the frame adjacent the top of the table, which shaft carires at one end a sprocket 6 driven by a chain 7 from any suitable source of power. A worm 8 1s secured at the opposite end of the shaft 3, which worm drives a gear 9 mounted on a shaft 10, which latter carries adjacent ts upper end a spur gear 11 meshing w1th another spur gear 12 mounted on the shaft 13. The shaft 13 extends up through a boss 14 within a cement receptacle 15 (Figures 2 and 5), and mounted on the upper end of the shaft is a cement distributing disc 16. This disc is formed at its lower side with a depending hub 01 flange 17 spaced somewhat from the upper end of the boss 14, and on the upper side of the disc 16 is a slightly elevated central circular portion 18. Oil is supplied to the shaft 13 by means of an oiler 19 and due to the extended engagement of the disc 16 against the upper end of the boss 14 and also to the spacing of the flange 17 from the boss there is no tendency for cement to get into the bearing of the shaft.

A housing plate 20 is removably secured to the upper portion of the receptacle 15 over the distributing disc 16, but it will be seen, more particularly in Figure 1, that this plate does not entirely cover the disc 16 but is cut away as shown at 21 to expose the lower ortion of the disc, the cut-away edge 21 being substantially tangential to the raised circular portion 18 on the disc. A nipple 22 is formed in the housing plate 20, and a valved supply pipe 23 leading from a tank 24 is adapted to telescopically or otherwise engage the nipple to supply cement to the upper surface of the disc 16 within the housing 20. One purpose of the disc 16 is to supply a thickened bead of cement from its edge to a footwear article, and in order that. cement may pass out on the exposed portion of the disc only at its edge, the following construction is provided: Adjustably secured by set screw and slot connection to the housing plate 20 at its cut-away edge 21 is a scraper 25, and by reference to Figure 3 it will be seen that this scraper atits right hand end is cutaway at the point 26 in any desired manner, for instance at an angle of about 45, while similarly adjustably secured to the housing plate 20 through scraper 25 adjacent. the cut away portion is an auxiliary scraper 27 which does not entirely cover the cut away portion of the scraper 25, thereby forming with the scraper 25 and disc 16 a small substantially triangular opening 28 directly at the edge of the disc through which opening cement may escape as the disc 16 rotates. By adjusting the scrapers 25 and 27, the

position of this opening may be varied to enlargeor reduce the size of the cement bead at the edge of the disc 16. Any surplus cement supplied to the disc 16 which does not escape through the opening 28 flows oil the disc and down past the cut-away corner of plate 28 to the incline 23 (Figure 4) where it supplies a rotatable cementing brush to be described.

At an intermediate point on the shaft 10, a spiral gear 29 is mounted, which gear engages a spiral gear 30 secured on shaft 31, and the latter through the bevel gears 32 and 33 drives a shaft 34 which in turn through bevel gears 35 and 36 drives a shaft 37. The shaft 37 extends upwardly through a boss 38 on the receptacle 15 and carries at its upper end the rotary cement brush 39. In order to revent cement from getting into the bearmg of shaft 37, a cap 40 fits closely against the upper end of boss 38 (Figure 4) but is spaced from the sides thereof, and a shoulder 41 on the shaft 37 bears closely against the cap 40. An inclined shoe support or table 42 is adjustably secured by thumb nut 42 to the table 2 in front of the brush 39, and it will be noted from Figure 2 that the brush is inclined with respect to the table 42 and projects above the latter to a height sufiicient to form the desired coat of cement at the bottom of the shoe upper when the latter is resting on the table 42 and pressed against the brush. The vertical distance between disc 16 and table 42 governs the height to which cement is applied, and by adjusting table 42 this distance may be varied.

Leading from the bottom of the receptacle 1!) is a cement drain pipe 43 emptying into a tank 44. and the tanks 4t and 24 are preferably intel-changeable, so that when the tank 24 is empty one may be substituted for the other.

The above described mechanism is used for cementing around the lower portion of the shoe upper at the point where the foxing strip is to be supplied, and in cases where it is also desired to apply a toe tip, means are furnished for ccmcnting the toe of the upper as follows: One or more brushes 4!) are rcmorably hcld adjacent the left hand side of the distributing disc l6 (Figs. 1. 3 and 6) by the flanges 46, and these brushes are supplied with the surplus cement from the disc 16. Below the brushes is mounted a small table .7, which table is carried on a rod 48 adjustably secured by the set screw 4!).

In operation the machine is started and cement is supplied to the rotating disc 16 from the tank 24. Due to the scrapers 25 and 27 the cement supplied to the disc can only escape from beneath housing 2t) through the opening 28 at the edge of the disc, so that in this manner a bead of eement is formed on the exposed edge of the disc as it passes out from the housing 20. The surplus cement as before stated drains down through the receptacle 15 to the incline28" where more or less of it is picked up by the rotating cementing brush 39. The operator then holds the footwear article 50 which is to be cemented onthe table 42 in about the position shown'in Fig. 4, pressing it upwardly so as to lightly engage the rotating brush 39 and rotating disc 16, at the same time turning the shoe gradually on its bottom. In this manner a coating of cement is applied'along the lower part of the upper by the brush 39, and at the same time the upper draws off the head of cement from the edge of the disc 16, and due to the position of the disc the cement bead is applied at the upper ed e of theband of cement applied by the rush 39. Due to the inclination of the brush 39 a portion of the shoe bottom is also cemented, and as some of the cement from brush 39 flows on the table 42 this is picked up by the shoe bottom as the shoe is rotated by the operator. The cement on the shoe bottom may if desired be then more uniformly distributed as by passing it across azbrush or in any other desired manner. When a toe tip is also to be applied the operator then laces the footwear article 50, toe downwardl on the table 47 with the sole portion directed outwardly and the toe of the upper pressed against the brushes 45 about as in Fig. 6, and he then rotates the shoe or other article about its toe while pressing it against the brushes, thereby applying a coat of cement at the point where the toe tip is to be secured and marking the toe cap line.

- It will be seen that by the invention the cementing operation can be rapidly and accurately performed, and since the shoe rests solidly on its bottom. during the cementing operation, as shown in Fig. 4, the cement strip on which the foxing is to be applied will be both uniform in thickness and its upper edge will 7 be uniformly straight and without the wavy mark frequently occurring when hand cementing is used. At the same time a uniform bead of cement is applied at the upper edge of the foxing cement strip, insurin the proper adhesion of the foxin at a points and a neat finished shoe without any blotches of cement extending on the upper beyond the foxing.

The machine is simple, easily operated, easily cleaned, and enables ra id work to be done bv the operator, there y lessening the cost of the cementing operation and insuring against any seconds through careless or inexperienced operators.

While a specific embodiment of the machine has been described, it is obvious that the disclosure will suggest numerous modifications to those skilled in the art, and it is not desired to limit the invention otherwise than as set forthin the attached claims.

Having thus described my invention what I claim and desire to protect by Letters Patent is 1.. In a cementing machine, an inclined support for the sole portion of a footwear article, means extending above the support whereby a coat of cement may be ap lied to the lower portion of the upper of the article as the latter is rotated on the support, and means for supplying cement to said last means.

2. In a cementing machine, an article support, means whereby a band of cement with a thickened edge or bead may be applied to an article on the support, and means for supplying cement to said last means.

3. In a cementing machine, an article suport, means whereby a band of cement may e applied to an article on the support, and means whereby a thickened bead of cement may be applied to the edge of said band.

4. In a cementing machine, an article support, means whereby a band of cement may be applied to an article on the support, and means whereby a thickened bead of cement may be simultaneously applied to the edge of said band.

5. In a cementing machine, an article support, rotary means whereby a band of cement may be applied to an article disposed on the support, and rotary means whereby a head of cement may be applied to the edge of said band.

6. In a cementing machine, an article support, a rotary cementing brush projecting above said support, a rotary disc adjacent the upper end of said brush, and means for supplying cement to said brush and to the edge of said disc adjacent the brush. I

7. In a cementing machine, an inclined article support, a rotary cement applying brush projecting above the support and inclined thereto, and means for applying a bead of cement at the edge of the portion of the article cemented by the brush.

8. In a cementing machine, an article support, article cementing means pro'ecting above the support, a rotary disc a jacent said means, a housing partly covering said disc, means for supplyln cement between disc, and means for conducting excess cement to the edge of the disc, and means cement from said disc to said first cementfor supplying cement between the housing ing means. and disc.

1.0. In a cementing machine, an article 15. In a cementing machine, an inclined support, a cement receptacle, a rotary brush footwear article support, an inclined rotary projecting from said receptacle above the brush extending above the surface thereof, support, a rotary disc adjacent the recepa rotary cement bead applying disc adtacle and brush, means for supplying a jacent and above said brush, and means for cement bead to the edge of the disc adsupplying a bead of cement to the edge of j acent the brush, and means in the receptacle said disc. for conducting excess cement to the brush. 16. In a cementing machine, a footwear 11. In a cementing machine, a. footwear article support, means whereby a band of article support, means whereby a cement cement with a thickened bead may be apcoating may be applied to a portion of an plied to an article on the support, and means article thereon, means whereby a bead o for varying the size of said bead. cement may be applied to the edge of said 17. In a cementing machine, a footwear coating, a second support, and means adarticle support, a rotary cement applying jacent said second support whereby an adbrush projecting above the surface thereof, ditional portion of the article may be a housing, a cement bead applying rotary cement coated. disc partially-disposed below said housing i 12. In a cementing machine, a footwear and having a projecting portion adjacent article support, means whereby a cement said brush, means for supplying cement becoating may be applied to an article thereon, tween said housing and disc, and means for means whereby a cement bead may be apforming a bead of cement on the edge of plied to the edge of the coating, and means the projecting portion of the disc. adjacent said last means and supplied with 18. In a cementing machine, a footwear cement therefrom whereby an additional article support; a rotary cement applying portion of the article may be cement coated. brush projecting above the surface thereof, 13. In a cementing machine, a footwear a housing, a cement bead applying rotary article support, rotary means for supplyin'gfllisc partially disposed below said housing a band of cement to a portion of an article and having a projecting portion adjacent disposed on said support, rotary means for. said brush, means for supplying cement beapplying a bead of cement to the edge of tween said housing and disc, a scraper dissaid band, and means for varying the size posed on the housing and extending adjacent of said bead. the projecting portion of the disc, and a 14. In a cementing machine, a footwear second scraper forming with the edge of the article support, a rotary cement applying disc and the first scraper a cement outlet. brush extending above the surface of said Signed at New Haven, in the county of support, a rotary cement bead applying New Haven, and State of Connecticut, this disc above said brush, a housing partly 4th day of April 1925.

covering said disc, means disposed at the edge of said housing for directing a bead of HERBERT R. POLLEYS.

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