US1146449A - Spraying device for shoe machinery. - Google Patents

Description

G. RIEL. SPRAYING DEVICE FOR SHOE MACHINERY.

APPLICATION FILED MAR. 10, H114. 1,146,449. Patented July 13, 1915.

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G. RlEL. SPRAYING DEVICE FOR SHOE MACHINERY.

a. RIE L. SPHAYING DEVICE FOR SHOE MACHINERY.

APPLlCATlON FILED MAR. 10, 1914. l 146,449. Patented 1 15.

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. GEORGE RIEL, OF MANCHESTER, NEW HAMPSHIRE.

SPRAYING DEVICE FOR SHOE MACHINERY.

Specification of Letters Patent.

Patented July 13,1915.

Application filed March 10, 1914. Serial. No, 823,732.

To all whom it may concern:

Be it known that I, GEORGE RIEL, a citizen of the United States, residing at Manchester, in the county of Hillsboro and State of New Hampshire, have invented certain new and useful Improvements in Spraying Devices for Shoe Machinery, of which the following is a specification.

This invention relates to certain improvements in devices for spraying leather in the manufacture of shoes and other articles; and the objects and nature of my invention will be readily understood by those skilled in the art in the light of the following explanation of the accompanying drawings illustrating what I now believe to be the preferred embodiment or mechanical expression from among other formations, arrangements, constructions and combinations within the spirit and scope of my invention.

An object of the invention is to provide means for automatically spraying shoe parts and other leather pieces during the process of making shoes and other leather goods to temper such leather parts preparatory to further operations thereon.

A further object of the invention is to provide a spraying device for attachment to and operation by shoe machinery, for the purpose of automatically spraying leather parts or pieces during the operation of such machinery, to properly temper such' parts or pieces preparatory to certain operations involved in the method of making shoes and the like.

A further object of theinvention is to provide shoe or other leather working machinery with means for periodically dis-.

charging a leather tempering spray against leather blanks or other parts on which said machinery has or 1S adapted to operate, and

. to automatically actuate said means by the operation of said machinery in performing the leather working functions for which it is adapted.

A further object of the invention is to provide spraying means automatically op erated by leather working machinery in performing its leather Working functions, and arranged to direct leather tempering spray onto a holder or support receivingtheleather blanks or pieces being operated on.

A further object of the invention is to provide certain improvements in combinations of elements and arrangements of parts whereby a highly efficient and advantageous leather blank or piece spraying attachment for shoe machinery will be provided.

The invention consists in certain novel features in construction and in combinations and arrangements as more fully and particularly set forth hereinafter. Referring to the accompanying draw- 1ngs;Figure 1, is a perspective view of a portion of a shoe sole molding machine showing my invention applied thereto. Figs. 2, 3, 4, 5, and 6, are detail views.

My invention is particularly intended for application to shoe machinery for automatically and uniformly wetting or tempering shoe parts to prepare them for some operation, preferably some operation to take place after the particular operation performed by the machine towhich the invention is attached, although I do not wish to so limit my invention. For instance, in the particular example illustrated, I show the invention applied to a shoe sole molding, pressing or shaping machine of Y a well known construction in common use. This machine embodies upper and lower cooperating pressing molds or shapers 1, 2; an upright frame 8, providing a vertical guide 4, for a vertically reciprocating head 5, carrying the lower mold 2, and having a sleeve 6, slidable on said guide, and a horizontally disposed trough or holder 7, transversely arranged at the front of the machine and fixed to the frame thereof and usually having upwardly extending rear and end walls. Suitable mechanism under the control of the operator (standing in front of the trough or table 7) is provided for reciprocating the lower head, as is well understood by those skilled in the art. In operating such machines, the operator usually places a number of sole blanks on the central portion of the work table, and then places one of these blanks on the mold when in lowered position. He then operates the necessary controlling device to cause said lower mold to move on its operative stroke and compress or shape the sole between the upper and lower molds. When the lower mold drops to its former position, the operator removes the shaped or pressed sole from said mold and places the same on the table at a point remote from that portion of the table on which the blanks to be shaped are piled.

In the example illustrated, the operator should place the shaped sole in the corner or end portion of the trough or table. lVhcnever desired, the operator removes the pile of shaped soles from the end of the trough and places them in the racks from which they are removed as required for operation by channel or lip turning machines.

The soles must be prepared for the channel or lip turning machines, by wetting or tempering, and heretofore this has required a separate operation, usually separate operatives being required for this purpose to apply the necessary moisture by the application of sponges. This method of wetting by sponges was unsatisfactory because of the added expense, the lack of uniformity in wetting the soles, and the time and extra handling required.

By my invention, I propose to automatically and uniformly temper the soles, preparatory to the channel or lip turning operation, by the operation of the sole molding machine so that said machine, in effect, performs two operations, to wit; molding the soles and also tempering the same.

In order to carry out my object, I provide the molding machine in this particular example) with a spraying apparatus arranged to deliver the necessary amount of water on each pressed sole, after the same has been laid in the corner of the trough, needed to properly temper the sole. I provide actuating means for the spraying apparatus so that the spray will be only approximately momentarily turned on While the lower head is on its upward movement to cause shaping of the sole carried thereby between the two molds. Various mechanical means can be provided for this purpose, although for purposes of explanation, I show a rigid forwardly projecting arm or bracket 9, at its rear end formed with a laterally offset base 10, fitting the outer upper portion of a side upright of the frame 3, and removably secured thereto by one or more bolts 11. The front or free end of this arm is provided with means carrying a vertically disposed sprinkler head or nozzle 12, at its lower end having a downwardly directed spraying opening 13, normally closed by any suitable means, such as longitudinally movable valve 14, for instance. A spring 15, is arranged within the nozzle head or casing to yieldingly maintain said valve at its limit of downward movement closing the spraying outlet. The valve is moved in the opposite direction to open the spraying outlet by valve stem 16, arranged longitudinally of the nozzle and slidable through an opening in the otherwise closed upper head of said nozzle and projecting a distance upwardly therefrom. A vertically swingable hand lever is provided for lifting said stem to open the spray outlet. This lever is formed with an elongated upwardly projected handle or operating arm or end 17, and with a short forwardly or laterally projecting end or nose l8, operatively engaging the exposed upper end of the stem to elevate the same when the end 17, of the lever is swung rearwardly. The nose 18, can be bifurcated to straddle the stem and engage under shoulders of the stem to elevate the same The lever is fulcrumed at its angle on horizontal pin 19, that carries the lever.

Any suitable means can be provided for constantly maintaining a supply of water or other liquid in the head 12, under the necessary pressure, although I show a stiff metal angle or elbow' pipe connection 20, rigid with and opening laterally into the head 12, at a point between its upper and lower ends and from thence extending rearwardly and having a straight upwardly extending length arranged a distance in rear of the head. To the upper end of this elbow pipe connection, I couple any suitable supply pipe, such as flexible pipe or hose 21. In the construction illustrated,-the nozzle-opening lever 17, 18, is fulcrumed to and supported by a lug 22,- fixed to and projecting laterally and forwardly from the straight end of elbow pipe 20.

The nozzle and its attached parts are coupled to the end of the arm 9, through the medium of a suitable adjustable bracket whereby the nozzle can be adjusted to the necessary angle to direct the spray in the desired direction or at the proper angle to strike the shaped soles deposited in the end or corner of the trough. This bracket consists of a socket or tubular portion 23, through which the straight end of the said elbow pipe extends and 'on' which it is held and a rearwardly extending shank 24;, rigid with said tubular portion and lapping the free end of arm 9, and normally rigidly clamped thereto in the desired adjustment by pivot and clamping bolt 25, passing through the shank and arm. When this bolt is loosened the bracket 23, 24, can be swung vertically on said bolt to hold the nozzle at the desired angle in which it-can be held by tightening the bolt. The bracket 23, can be composed of two halves or similar sections secured together by the said clamping bolt. I show a guard, deflector or shield 26, at its upper forward corner fitted to the lower end portion of the nozzle or spraying head and adjustably and removably clamped thereto by bolt 27. This shield depends and extends rearwardly from the nozzle and is designed to confine the spray to the limited area occupied by the shaped soles in the corner or end of the trough and particularly toykeep the spray from striking the arms of the operator of the machine.

The tubular portion 23 of the nozzle adjusting bracket is, in this instance, formed with a transverse slot opening radially therethrough to receive the lug or projection 22, rigid with the elbow pipe carrying the nozzle. This slot is preferably of sufficient length to permit movement of the projection 22, longitudinally thereof and hence permit turning or partial rotation of said straight end of the elbow pipe in said tubular portion of the bracket when the bolt 25, is loosened, should it be desired to thus adjust the spraying nozzle by swinging the same from the longitudinal aXis of the straight arm of pipe 20, as a center.

Various means can be provided for rocking the operating lever 17, 18, to open the spray nozzle, and for purposes of explanation I show a slide rod 29, carried by and arranged longitudinally of the arm 9, and confined thereto in longitudinal sliding adjustment by the eyes or guides 30. This rod is yieldingly held at its limit of forward movement by coiled spring 31, arranged on the rod and at one end bearing against an eye 30, of the supporting arm and at the other end bearing against a suitable abutment carried by the rod. This rod extends forwardly beside the bracket 23, the pipe 20, and the valve operating lever to a point in advance of said lever where the rod is formed with a lateral end or projection 33, located in front of the upright arm 17, of said lever. This lateral projection 33, is provided with a rearwardly projecting stop or abutment 34, adapted to engage said lever arm 17 when the rod 29, is moved rearwardly and rock saidlever in a direction to open the spray nozzle valve against the tension of its spring. The abutment 34 is formed by a screw extending through the laterally projected end 33, and longitudinally adjustable therein toward and from said lever end 17, to determine the length of time the spray nozzle valve is held open at each stroke of the slide rod 29. By this arrangement, the parts can be adjusted to deposit the required quantity of water on each sole.

Means are provided to cause each upward movement of the molding machine head 5, to slide the rod 29, rearwardly on its valve opening stroke and to quickly release the same for its return stroke under the action of coiled spring 31, so that the sole tempering spray (in this instance) will be turned on only during a short portion of the upward stroke of the lower mold. To accomplish this result, the rear end of the slide rod is provided witha head 35, projecting 1 rearwardly to a position adjacent to the sleeve 6, of the reciprocating head of the molding machine and into the path of movement of a pivoted spring held dog, cam, arm or pawl 36, carried by said sleeve. This dog projects upwardly from and at its lower end is pivotally joined to a block 37 clamped to sleeve 6. The dog is mounted to swing vertically (forwardly and rearwardly) on. pivot bolt 38, and is yieldingly held in an inclined position, at its limit of forward movement against fixed stop 39, by spring 40. At its upper free end, this dog 7 is formed with a lateral toe or cam projection 36, having a straight flat rearwardly facing inclined face 41 and a rounded or convened downwardly facing inclined face 42. The rear end head 35, of the slide rod is provided with a laterally projecting rigid stud carrying a horizontal antifriction roll 43, spaced a distance rearwardly from a vertical guide wall or edge 45, to leave an intervening guide way or passage across the side face of the head. Immediately above the roll 43, is provided a rigid wedge shaped projection 44, having upwardly converging opposite edge faces and forming the wall of said passage above the roll and opposite wall 45.

The parts are so arranged that the roll 43, and wedge-shaped rigid guide or cam 44, are located in the vertical path of movement of the operating toe 36. When the molding machine head is in its lower position, the inclined face 41, of said toe 36 is located directly below roll 43, and hence as said head moves on its upward stroke said inclined face moves up into engagement with said roll and forces the same rearwardly as it travels down the inclined face toward the lower edge of the toe, and thereby draws the slide rod rearwardly to open the spray head valve. The soray head valve is thus held open until the lower edge of said toe passes upwardly from engagement with the top edge of the wedge projection 44, whereupon the slide rod springs forward to normal position and the spray head valve is closed by its spring. lVhen the molding machine head returns on its down stroke, the conveXed surface 42, of the toe 36, engages the rear inclined top edge of projection 44, and the dog is swung laterally against the tension of its spring and thus slides down the rear portions of the projection 44 and roll 43, without disturbing the position of the slide rod.

If desired, a rigid shield 50, can be secured to the front end of the arm 9, and extended forwardly therefrom beside and laterall in front of the front end portion of the spring actuated slide rod.

In molding machines embodying several sets of sole pressing molds, I can provide a spraying attachment such as described, for

each set of molds, each attachment being from are deposited at opposite ends of the trough, hence one attachment will spray the soles at one end ofthe trough and the other attachment will spray the soles at the other end of the trough. I have not deemed it necessary to show a double machine in the drawings, inasmuch as it involves but a duplication of what is illustrated so far as my present invention is concerned.

If so desired, the trough can be provided with a discharge pipe 51, to drain the spray \va'ter therefrom.

By the use of my invention each pressed sole is sprinkled with the required amount of water to properly temper the same for the next operation that occurs after the sole is shaped, in the process of making shoes. Furthermore, the soles are uniformly sprinkled or tempered and the tempering operation is performed by the machine as it .shapes the soles without additional attendance and without further movements or operations on the part of the attendant operating the sole shaping machine. It is merely necessary for the attendant totake the pressed or shaped sole from the lower mold and place it in the corner of the trough as heretofore and take ablank from the central portion of the trough and place it on the mold and then move the foot treadle or other means necessary, to throw the machine into action and cause the upward movement of the lower mold. It is during this upward movement of the lower mold that the spraying device is operated to deposit the neces sary quantity of tempering water 011 the shaped sole just placed in the corner of the trough.

My invention is by no means limited to attachment to sole molding machines inasmuch as it can be adapted to various machines employed in the manufacture of shoes and leatherparts for slices and other purposes where it is desirable to temper the leather and to avoid the use of wetting by sponges as heretofore. The invention can be applied to shoe sewing machines, channeling machines and the like used in the manufacture of shoes, as well as in connection with leveling machines used in the manufacture of shoes.

For the sake of clearness I have with great particularity described the details of the various groups of mechanisms employed in the example of my invention that I have selected for illustration, but I do not thereby intend or wish to so limit my invention. IVhile I wish to lay claim to all novel details of the various groups of mechanisms, yet I particularly lay claim to all the broad novel arrangements, features and combinations of my invention not limited to any particular construction.

It is evident that various modifications, variations, and departures might be resorted to, that elements and groups of elements might be omitted and that features might be added, without departing from the spirit and scope of my invention, and hence I do not wish to limit myself to the exact disclosure hereof, but consider myself entitled to all equivalents, adaptations, modifications, variations and departures falling within the spirit and scope of the invention as defined by the following claims.

Desiring to protect my invention in the broadest manner legally possible, what I claim is 1. A leather Workingmachine having a trough to receive the leather articles, in com bination with an automatic spraying device for periodically spraying the articles on said trough, said device being periodically operated by said machines, and embodying a spring for actuating said device in one direction and a trip for actuating said device in the opposite direction.

2'. A shoe sole molding machine having a support to receive the soles shaped by the machine, in combination with a device for discharging a leather tempering spray onto said support, and means for automatically and periodically operating said device during the operation of said molding machine.

3. A shoe sole molding machine having a support to receive the soles shaped by the machine, and embodying a. part moving during the sole shaping operations, in combination with a device for discharging a leather tempering flow of water onto said support, and mechanism actuated by said part to periodically and automatically operate said device todischarge said flow of water.

4. A machine for operating on leather shoe parts comprising an element moving during the operation of the machine, in combination with a device for discharging a leather tempering flow of water on said leather parts, and mechanism actuated by said element to periodically and automatically operate said device to discharge said flow of water.

5. A spraying attachment for shoe machinery and the like comprising a spraying nozzle, means for supplying water thereto, a valve normally closing said nozzle, and means adapted to be periodically operated by a moving part of said machinery for actuating said valve to open said nozzle.

6. A spraying device for shoe machinery, adapted to be automatically operated by such machinery to periodically discharge a leather tempering flow of Water on the leather parts operated on by said machinery, said device comprising a water discharging nozzle, means normally closing the same against discharge of Water, and mechanism for operating said means to open said nozzleto flow of water, said mechanism being periodically operated by moving parts of said machinery.

7. A spraying attachment adapted for application to and automatic periodical opera tion by leather working machinery compriscarried thereby, a valve normally closing said nozzle, means for moving said valve to nozzle opening position, and trip mechanism for periodically operating said means.

8. A spraying attachment comprising a support, a spraying nozzle provided with a water supply connection, a valve for closing and opening the water supply to said nozzle, said nozzle provided with a shield to direct the spray discharged therefrom, and means for periodically moving said valve to cause discharge of spray from said nozzle.

9. A spraying device for shoe machinery and the like, comprising a rigid support, and an adustjable bracket carried thereby, a spraying nozzle carried by said bracket, means for opening and cutting ofli the water supply to said nozzle, and mechanism for operating said means.

10. A spraying device for shoe machinery and the like, comprising a support, a nozzle, means for opening and shutting off the water supply to said nozzle embodying a spring held operating lever, and mechanism for actuating said lever comprising an adjustable abutment whereby the length of time that said nozzle is open to its water supply at each stroke of said mechanism can be varied.

11. A spraying device for shoe machinery and the like, comprising a support, a nozzle ,means for opening and closing the Water supply to said nozzle, and mechanism for periodically operating said means to open said. water supply to the nozzle comprising a reciprocating spring held member and a reciprocating spring held pivoted trip dog movable transversely of said member and arranged to freely slip past the same when moving in one direction and to move said member on its operative stroke when moving in the opposite direction.

12. A machine for working on leather pieces, and a support in front of said machine and independent of the leather working parts thereof to receive such leather pieces, in combination with a tempering liquid discharge nozzle, a support for said nozzle independent of the leather working parts of said machine and maintaining said nozzle in position to discharge tempering liquid onto leather pieces on said support, and means ope *ated by the machine for controlling the discharge of tempering liquid from said nozzle.

13. A machine for working on leather pieces, in combination with means for ing a supporting bracket, a spraying nozzle spraying said pieces with a tempering liquid, said means comprising a normallyfixed liquid spraying nozzle independent of the working parts of said machine, a support for said nozzle, and means operating with the machine for controlling the discharge of liquid from said nozzle.

14. A machine for working on leather parts, in combination with a device for discharging tempering liquid on such leather parts comprising a spraying nozzle provided with a spray shield, a support for said nozzle, and means operating with said machine for controlling the discharge of liquid from said nozzle.

15. A device for discharging tempering liquid spray on leather shoe parts comprising a bracket adapted to be fixed to a shoe machine, a tempering liquid discharge nozzle secured to and carried by said b 'acket in a normally fixed position, liquid supply connections for said nozzle, means for controlling the discharge from said nozzle, and actuating devices for said means.

16. A leather working machine, in combination with a device for discharging a spray of leather tempering liquid comprising a tempering liquid discharge nozzle, means supporting said nozzle in a normally fixed position with respect to the working parts of said machine, and operating devices controlling the discharge of liquid from said nozzle and actuated by a moving part of said machine.

17. A leather working machine embodying leather working parts, in combination with a leather spraying device comprising a spraying nozzle independent of and normally fixed with respect to said working parts, and means controlling the discharge from said nozzle.

18. A leather working machine having a support to receive leather pieces from said machine, in combination with means for discharging tempering liquid on said pieces in said support, said means comprising a nozzle independent of the working parts of said machine, and devices operated by said machine for opening and closing the liquid supply to said nozzle.

19. A device for spraying tempering liquid on leather pieces comprising a bracket, a tempering discharge nozzle, a spring pressed valve constantly tending to close the liquid supply to said nozzle, a hand lever for moving said valve against its spring to open the liquid supply to said nozzle, and power-operated actuating means for periodically swinging and releasing said lever.

20. A device for spraying tempering liquid on leather pieces comprising a bracket, a tempering liquid discharge nozzle, means supporting said nozzle from said bracket in pivotal adjustment on various axes, liquid supply connections to said nozzle, and means for opening and closing the liquid supply to said nozzle.

21. A leather Working machine provided with a front trough to receive leather pieces,

. said trough being independent of the Working a supporting-bracket, a tempering liquid discharge nozzle carried by said bracket, 15 means for opening and closing the liquid supply to said nozzle, and means whereby said nozzle can be adjusted to various angles with respect to said bracket.

In'testimony whereof I aflix my signature in presence of two Witnesses.

GEORGE RIEL.

\Vitnesses:

HARRY E. LovEREN, G ACE M. LOVEREN.

Copies 01 this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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