US1018938A

US1018938A - Packing-box.

Info

Publication number: US1018938A
Application number: US64064611A
Authority: US
Inventors: William T Snell
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-07-26
Filing date: 1911-07-26
Publication date: 1912-02-27
Anticipated expiration: 1929-02-27

Description

W. T. SNELL.

PACKING BOX.

APPLICATION FILED JULY 26, 1911.

1,018,938. Patented Feb.27,1912.

3 2 SHEETS-SHEET 1.

WITNESSES INVENTOI? mm [Jae/Z ATTORNEYS W. T. SNELL.

PAOKING BOX.

APPLICATION FILED JULY 26, 1911.

1,018,938. Patented Feb.27, 1912.

2 SHEETS-SHIEIIBTv 2.

WITNESSES INVENTOR ATTORNEYS COLUMBIA PLANOGRAPH 60-.WASHINGTON. D. c.

WILLIAM '1. SNELL, 0F BISBEE, ARIZONA TERRITORY.

PACKING-BOX.

Specification of Letters Patent.

Patented Feb. 27, 1912.

Application filed July 26, 1911. serial No. 640,646.

To all whom it may concern:

Be it known that I, WILLIAM T. SNELL a citizen of the United States, and a resident of Bisbee, in the county of Cohise and Territory of Arizona, have invented a new and Improved Packing-Box, of which the fol lowing isa full, clear, and exact description.

My invention is directed to a packing box which is adapted for use on plungers of pumps and also on piston rods and valve stems, the object of the invention being to provide a new and improved form of packing device which will effectively prevent leakage and which is simple in its construction.

A further object of my invention is to provide a new and improved means for holding a packing box in position on a pump plunger, or piston rod, or valve stem, additional means being provided for applying suitable pressure to the packing material so that the same may be held securely in position.

A further object of my invention is to provide a new and improved form of packing box having adjustable means'thereon for applying pressure to the packing material whereby the same may be secured in place in order to prevent leakage, the adjustment being secured without the use of any tool engaging the parts.

Reference is to be had to the accompanying drawings forming a part of this specification in which similar characters of reference denote corresponding parts in all the views, and in which- Figure 1 is a side view, partly in section, showing my packing box adapted .to a double cylinder pump; Fig. 2 is a sectional view on the line 22 of Fig. 3; Fig. 3 is a sectional view of the packing box on the line 33 of Fig. 1. Fig. 4 is a sectional view similar to Fig. 2 showing a modified form of construction; Fig. 5 is a partial vertical sectional view setting forth the form shown in Fig. 4 applied to a single cylinder.

The opposite cylinder heads of a suitable double cylinder pump or equivalent device are designated 1 and 2, while the piston rod is marked 3; my device is adapted .to be positioned between the cylinder heads 1 and 2 and in engagement with each, the parts thereof being capable of variation in size in order to adapt the box to different pumps.

The packing box comprises the cylindrical members 4, 5, having peripheral flanges 6, 7, at adjacent .ends thereof, the members being threaded as at 8, 9, throughout the greater portion of their length, the ends of each of the members being provided with a peripheral flange or shoulder 10,11. These flanges 10, 11, may be formed on the ends of the members 4, 5, in any suitable manner or they may be 'made separately and fastened thereon.

' The peripheral flanges 6, 7, are in engagement with each other through suitable blocks 12, through which and the flanges a bolt and nut 13 extend whereby the parts are properly spaced and the packing material 14 is secured in position between them.

The flanges 10, 11, at the opposite ends of the device are each adapted to be positioned within the stuffing box or opening in the cylinder heads 1, 2, a packing ring of any desirable material 15 being positioned against these flanges and being maintained in position by engagement with the

glands

16, 17, which are adapted to be brought into engagement therewith and. secured adjacent the cylinder, head by means of any number of'suitablebolts 18.

The packing material 14 is positioned between the flanged ends 6, 7, of the members 4, 5, and is of suflicient width to be securely engaged therein, the packing material itself being held in close frictional cont-act with the piston rod 3 by means preferably of the following construction. 20, preferably of steel, is positioned around the packing material 14, one end of the member being in engagement at 21 with the end of the bolt 22, the other end portion of the spring being provided with a projection or boss 23 thereon, against which the end of a-wedge 24 is adapted to engage, as

particularly shown in Fig. 3, the bolt 22' being suitably positioned between the bifurcated end 25 of the bracket 26, the wedge being also positioned on this bracket and its outer end being in engagement with an offset portion 27 of the'bracket so that when.

a suitable nut 28 is tightened on the threaded end of the bolt and in engagement with the A spring member end 25, the movement of the bolt will tighten the spring on the packing material, the end of the spring being held against movement by reason of engagement with the end of the wedge 24: which in its turn is held against movement by engagement with the beforementioned offset portion 27.

The use of the invention as illustrated in the drawings may be set forth as follows: The cylindrical members 4:, 5, are positioned on the piston rod 3 and the flanges 10, 11, are brought into the stufling box openings in the cylinder heads 1 and 2, the packing material 15 being then placed in position and secured therein by engagement with the

glands

16, 17 the packing material 14 being previously positioned on the piston rod and between the flanges 6, 7. The packing material is held between the flanges and on the piston rod with the requisite amount of pressure by means of the adjustable spring 20, tightening of the spring bringing any desired amount of pressure to bear on the packing material within certain limits so that this material is firmly held between the flanges 6, 7, and leakage is prevented.

In Fig. 4: a modified form of construction, similar to that shown in Fig. 2, is illustrated, the modification consisting in making the cylindrical members 5, 4:, integral with the cylinder heads 1, 2; in this construction the flanges 6, 7, are similar in structure and function to those shown in Fig. 2, being adapted to receive the packing material 14 and the spring member 20 between them, the spring holding the packing material in closed engagement with the shaft or piston rod 3.

In Fig. 5 the integral form of construction illustrated in Fig. 4 is set forth applied to a single cylinder; in this case the cylindrical member 5 which is similar in structure and function to the member 5. of Fig.

4 is integral with the cylinder head l the peripheral flange 7 is similar to the flange 7 of Fig. 4c, the packing material being retained between this flange and another one 6*, the flanges being held in proper relative posit-ion by means of suitable bolts and nuts 100. In this structure the piston rod 3 passes through the cylindrical member 5 and is engaged by the packing material previously described, the flange 6 surrounding the rod 3 and serving to retain the packing material in proper position, the flanges being secured together as mentioned. The device for retaining the packing material on the shaft or rod 3 is similar to what has already been described and it is not believed that a further explanation is necessary.

While certain sizes of parts and a certain ratio between the sizes is shown in the drawings, it is evident that such features of the device as size, shape and relative strength of parts will depend upon the engine or pump, etc. with which the device is used, the changes in these respects being mechanical in order to adapt the device to these engines or pumps and being included within the spirit and scope of my invention.

Having thus described my invention, I claim as new, and desire to secure by Letters Patent 1. A packing box comprising a cylindrical member having a flanged outer end adapted to be positioned on a piston rod, suitable packing material surrounding the piston rod adjacent the said flanged end of the member, means for holding the packing material adjacent the said end, together with other means for engagement with the packing material whereby the pressure thereon may be varied in order to hold it in close engagement with the piston rod.

2. A packing box comprising acylindrical member adapted tosurround a piston rod, the outer end of the member being pro vided with a flange, packing material adj acent the flange and surrounding the piston rod, other means adjacent the packing material and extending around the rod for holding the material in position, together with movable means embodying a spring in engagement with the packing material whereby the pressure on the same may be varied, thereby preventing leakage.

3. A packing box comprising a cylindrical member adapted to be positioned on a piston rod, packing material at one end of the said member, the said end being adapted to be positioned within the opening in the cylinder head through which the rod passes, there being means on the member for engagement with the packing material in order to hold it secured in position, a flange at the opposite end of the said member,pack ing material adjacent the flange and surrounding the piston rod, another member also surrounding the piston rod and adjacent the packing material in order to hold the same in position on the rod, together with means embodying a spring surrounding the packing material, and a bolt in engagement with the spring whereby tightening of the spring may lncrease the pressure on the packing material on the rod in order to prevent leakage.

4. A packing box comprising a cylindrical member adapted to be positioned on a piston rod, the opposite end portions of the member being provided with peripheral flanges, one flange being adapted'to be positioned within the opening in the cylinder head through which the said rod passes, packing material on the member adjacent the flange, together with other means carried by the member and adapted for engagement with the cylinder head in order to securely position the packing material therein, a quantity of packing material adjacent the other flanged end of the said member and surrounding the said piston rod, means adjacent the packing material and in engagement with the piston rod for engagement with the packing material in order to secure it in posit-ion, together with means embodying a spring member in engagement with the packing material for applying pressure thereto in order to secure it on the piston rod, thereby preventing leakage.

5. A packing boX comprising a cylindrical member adapted to be positioned on a piston rod, the opposite ends of the member being provided with flanges, one of the flanges being adapted to enter the opening in the cylinder head through which the rod passes, a suitable quantity of packing material contained adjacent the said flange and within the said opening, together with a gland positioned on the said. member adapted to engage the cylinder head to hold the material secured in position, a quantity of suitable packing material on the piston rod and adjacent the other flanged end of the said member, a member encircling the piston rod adjacent the packing material and opposite the said flange, together with means for securing the flange and the said member with the packing material between them, and other means embodying a spring in engagement with the packing means whereby pressure thereon may be varied in order to prevent leakage.

6. A packing box comprising a cylindrical member adapted to be positioned on a piston rod, packing material adjacent one end of the said member and positioned in the opening in the cylinder head, other means being provided on the said member for engagement with the cylinder head in order to secure the packing in position, a quantity of suitable packing adjacent the opposite end of the said member, the said packing encircling the piston rod, a member also encircling the piston rod and op-v posite the said end of the said member in order to position the packing material, together with means embodying a spring in engagement with the packing material and a bolt having a nut thereon whereby movement of the bolt will move the spring, thereby increasing the pressure on the packing material in order to prevent leakage.

7. A packing boX comprising a cylindrical member adapted to be positioned on a piston rod, packing material adjacent one end of I the member and contained within the opening in the cylinder head, other means for engagement with the cylinder head for securing the packing material in position, a peripheral flange at the opposite end of the said member, packing material surrounding the piston rod adjacent the flange, another member encircling the piston rod being provided with a threaded bolt having a nut thereon in engagement with the bracket, the other end of the spring being in engagement with a wedge'also bearing on the said bracket whereby as the said bolt is moved in one direction the said spring is tightened, thereby bringing pressure to bear on the packing material in order to prevent leakage.

8. A packing box for double cylinder pumps or the like comprising a plurality of cylindrical members adapted to engage the piston rod, the adjacent ends of the said members being provided with peripheral flanges, a quantity of packing material encircling the piston rod between the said flanges, the remote ends of the said members being provided with packing material, the said ends being adapted to be positioned within the openingsin the cylinder heads through which the piston rod passes, each member being also provided with means for securing the said ends in position, a bracket carried by the first-named flanges, a spring member encircling the packing material and positioned between the flanges, together with means carried by the spring member and engaging other means carried by the bracket whereby the pressure on the spring may be varied, thereby varying the pressure on the packing material in order to prevent leakage.

9. The combination of a piston rod, a member in which the rod reciprocates, a quantity of packing material surrounding the rod, means for holding the said packing material in position on the rod and othermeans engaging the packing material whereby it may be brought into close engagement with the rod.

10. The combination of a piston rod, a member in which the rod reciprocates, a quantity of packing material adjacent the outer end of the member and surrounding the rod, means for keeping the packing material in position, and movable means surrounding the packing material and in engagement therewith whereby it may be tightly compressed on the rod in order to prevent leakage.

11. The combination of a piston rod, a member in which the said rod reciprocates, the outer end of the member being provided with a flange, a quantity of packing material surrounding the rod and adjacent the said flange, an element adjacent the packing material, the said element and the flange being in engagement with each other through the medium of a bracket, together with resilient means surrounding the packing material, and other means carried by the bracket whereby the packing may be compressed and leakage prevented.

12. The combination oi a piston rod, a member in which the said rod reciprocates, the outer end of the member being flanged, a quantity of packing material surrounding the rod and adjacent the said flanged end, an element adjacent the packing, a bracket, the bracket being in engagement with the said flanged end and the element, a spring member passing around the packing material, a boss on the spring, means carried by the bracket and in engagement with the spring member, together with other means carried by the bracket and engaging the said boss whereby, when the said means is moved relatively to the said member, the spring member will be tightened and the packing material placed under pressure whereby leakage is prevented.

13. The combination of a piston rod, a member in which the rod rec-iprocates, the outer end of the member being provided with a flange, a quantity of packing material surrounding the rod and adjacent the flange, an element adjacent the packing material, the packing material being positioned between the said element and the said flange, a bracket, the bracket being in engagement with the element and the flange, a movable bolt carried by the bracket, a spring member surrounding'the packing material, one end of the member being in engagement with the bolt, the spring member being provided with a boss, a wedge carried by the bracket and engaging the boss, together with a nut on the said bolt, tightening of which moves the bolt relatively to the wedge whereby the spring member is tightened and the packing material compressed, thereby preventing leakage.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM T. SNELL.

l/Vitnesses:

LEONARD E. MONTGOMERY, FRED LAMBERT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G.