US1315865A - Apparatus fob - Google Patents

Description

J. A. SCHANNO. APPARATUS FOR REMOVING CYLINDER LININGS.

APPUCATIOI FILED NOV. 20. I918.

Patented Sept. 9, 1919.

2 SHEETSS'HEET 1.

TIGI COLUMIIA PLANOURAPII 60-. WASHINGTON, l). L

1. A. SCHANNO. APPARATUS FOR REMOVING CYLINDER LININGS. APPLICATION FILED NOV. 20, I918.

l ,3 1,5, 865 Patented Sept. 9, 1919.

2 SHEETS-SHEET 2.

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. osnrir AL scnnnivo, 0F BROOKLYN, new YORK.

APPARATUS ronnnrrovm cYLmDEnrILmINss.

Specification of Letters Patent.

Patented Sept. 9, 1919;

Application filed November 20, 1918. Serial No; 263,405.

To all whom it may concern Be it known that I, Josnri-r A. Sornmno, a citizen of the United States, residing at Brooklyn, in the county "of Kings and State of New York, have invented new and useful Improvements in Apparatusfor Removing CylindenLinings, of which the following is a specification.

This invention relates to improvements in ap mratus for removing the linings of cylinders andhas particular application to an apparatus for facilitating the removal of the linings of marine pump cylinders.

As is well known, owing to the unusual corrosion, caused by galvanic action, salt and various impurities;marine pumps are usually built of iron with brass linings, and it is often necessary to renew the linings of the pumps. Incarrying out the present in" vcntion, it is my purposeto provide an apparatus whereby the linings of theinarine pumps may be quickly and convenientlyremoved from the cylinder whenever necessary so that a new lining may be inserted in the cylinder in place of the old linin It is also my purpose to provide an apparatus of the class described which may be easily and conveniently placed within the pump cylindel and which may be operated within the pump cylinder in such manner as to quickly cut the lining of the cylinder so that such lining may be withdrawn from the cylinder and anew lining substituted therefor. a

With the above recited objects in view and others of a similar nature the invention resides in the construction, combination and arrangement of parts set forth inand falling within the scope of the appended claims.

In the accompanying drawings? Figure 1 is a view in front elevation: of a cutting device constructed in accordance with my invention. I l

Fig. 2 is a vertical sectional view through the same.

Fig. 3 15;1L1 cross sectional view therethrough, the cutting apparatus being shown as mounted within a cylinder and acting upon the liningthereofp Fig. 4 is a top-plan view ofthe apparatus ren'ioved fromthhcylindeh Fig. 5 is a similar view showing my improved cutting apparatus as used to cut a heyway in a shaft. 1

Fig. 6 is a view similar to Fig. 5 showing the device used for cutting a keyway in a hub of a gear or thelike.

r Fig. 7 is a fragmentary sectional view showing a portion of the reversing gear.

Fig. 8 is a cross sectional view of the same.

Referring now to thedrawings in detail 1 designates anouter vertical casing which, in the present instance, is substantially U- shaped in cross section. Formed on the inner surfaces of the sides of the casing 1 at the open end or side of such casing are vertical flanges 2 extending toward each other. The top and bottom ends of the casing 1 are closedbymeans of platesshaped to conform to the cross sectional configuration of the casing 1. Mounted within the casing 1 is a guide casing 3 of cross sectional configuration corresponding to that of the casing 1 and having ltS'SlClB and top and bottom walls 1n. engagement wlth the corresponding walls of the casing 1 andits open side and back spaced apart from the open side and back respectively of the casing 1 so that the guide casing may be shifted forward and backward Within the casing 1 whenever desired or necessary for a purpose which Wlll presently appear. In the present instance, the outer surface of the back of the guide casing 3 is formed with wedge shoes 4 spaced apart vertically and the outer edges of the sides of the guidccasing atthc jopen front of such casing are formed with wedge shoes5 spaced apart vertlcally and arranged in confronting relation with the flanges 2 on the casing 1. The numeral 6 designates wedge blocks, which, in the present nstance, are interposed respect1vely,be-

tween the wedge shoes 4: and the back wall of the casing 1 and the wedge shoes 5 and the flanges 2. VVhenfthe wedge blocks in the front edges of the casing 3 are moved in one direction and an wedgeblocks in the rear of the casing 3 are moved in the opposite direction, the casing Sis shifted from the .fronttoward the back of the casing 1, while when, the direction of movement of the wedges is reversed, the guide casing is shifted toward the front or 0 en side of the casjing 1. 1 These wedge bloc .{S and wedge shoes constitute a shifting. means for the guide casing 3 and in this connection I wlsh it to be understood that other shitting means,

than that shown, may be employed without departing from the spirit of my invention.

Extending through the inner guide casing 3 and j ournalecl in the top and bottom walls in the casings 1 and 3 is a shaft 7 formed with a worm or screw thread 8 extending longitudinally thereof. Surrounding the shaft 7 and engaged by the screw'threads 8 is a carriage 9 which, in the present instance, is in the form of a sleeve having a fiat side 10 formed with an, outstanding ledge 11. Mounted upon the ledge 11 is a. tool post 12 of somesuitable construction and arranged within the tool post 12 is a cutter 13.

In the present instance, the lower end of the tool post 12 is pivotally mounted upon the ledge 11, as clearly shown in Fig. 2 of the drawing, so that the cutter will be held in engagement with the work while the carriage is traveling in one direction under the action of the screw, and permitted to swing away from the work when the direction of movement of the carriage is reversed, thereby enabling the cutter to be returned to its initial cuttingposition for a new operation.

The upper end of the shaft 7 is formed with a. tang 14 that is equipped with any other means whereby said shaft may be connected up with a source of power such, for instance, as an {electric motor, or an air motor.

In practice, the apparatus just described .is placed in the cylinder of the pump and the shaft 7 revolved. In the rotation of the shaft 7 the carriage 9 is carried from one end of the cylinder to the other and the cutter 13 cuts the lining so that the latter may be removed from the cylinder.

By means of thewed blocks and wedge shoes, the guide casing within the casing 1 so that the cutter maybe moved into and out of engagement with the liningas is readily apparent.

In order that the casing3 may be freely shifted within the casing 1, the openings in the end walls of the casing 1 through which the ends of the shaft 7 extend are elongated thereby permitting free movement of the shaft in the shifting of the casing 33. a

In this embodiment of my invention I.

have shown an appropriate form of reversing gear 15 which is connected with the outer end of the shaft 7 wherebythe shaft may be reversed to reverse the direction of movement of the carriage.

In the present instance the reversing gear embodies a stub shaft 16 integral with and projecting upwardly from the inner casing 3 and forms adjacent to itsupper end, a circumferential groove 17 In the present groove is a split collar 18. Rotatably mounted upon the stub shaft 16 is a sleeve like shaft 19 having its upper end formed with a tang 20. 011 the inner end of the sleeve like shaft 19 is a spur gear 21 which may be adjusted meshes with a similar gear 22 fast upon the shaft 7. By means of this construction it will beseen that the flexible shaft. or other driving element that connects with V the source of power'may be connected with the tangle when it is desired to rotate the shaft 7 in one direction, while such driving element may be disconnected from the tang 1 1 and connected with the tang 20 when it is de siredto rotate it the shaft 7 in the reverse direction.

In Figs. 5 and 6 of the drawings I have shown my improved cutting apparatus as employed for cutting ,keyways in shafting and in gear hubs and in order that my apparatus may be used accurately in this work,

the outer edges of the casing. 1 are formed with longitudinally extendingVshaped ribs 24: as shown in the drawings.

W 1111s I have hereinshown and described one particular form of myinvention by way described means for reversing the direction .Of1110t10110f the shafts 7 and 16 respectively.

It is described that the motor employed. is shiftable from one of these shafts to the other in order that the direction of rotation can be changed. The proposedsuggestions in lieu thereofare the embodiment with the mechanism of any wellknown form of gear shifting means which can be controlled with& out the necessity of changing the normal position of the driving motor.

I claim a 1. An apparatus of the class described, an

outer. casing, an inner casing within said outer casing capable of belng shifted from one side of said outer caslng to the other side,

a carriage within said innercasingand capableof longitudinal movement within said inner casing, means for moving said "car riage long1tud1nally,,and a cutter on said carriage adapted to be moved into and out of engagement with the work according to the shifting of said inner casings 2. An apparatus of the class described, an outer casing having: an: open side, an inner casing within said outer casing and having an open side adjacent to the openside of the outer casing, means between said lnner and outer casing whereby the open side of the inner casing may be moved toward and away from the open side of the outer casing, acutter within said inner casing adapted to-be engaged with the Work through the open sides of said casingand to be moved into and out of engagement with the work according to the movement of said inner easing within said outer casing, and means for operating said cutter.

3. An apparatus of the class described, an

outer casing having an open side, an inner casing Witlnn said outer casing and having an open side adjacent to the open side of the outer casing, means between said inner and outer casing whereby the open side of the inner easing may be moved toward and away from the open side of the outer casing, a cutter within said inner casing adapted to be engaged with the Work through the open sides of said casing and to be moved into and out of engagement with the Work according to the movement of said inner easing Within said outer casing, a carriage upon which said cutter is mounted and means for operating said carriage to render said cutter active.

4. In an apparatus of the class described, a casing capable of lateral shifting movement, a carriage Within said easing capable of longitudinal movement therein, means for moving said carriage longitudinally, and a cutter on said carriage adapted to be moved into and out of engagement With the Work according to the lateral movement of said casing.

In testimony whereof I aifix my signature. JOSEPH A. SCHANNO.

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

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