US1257475A - Combined pipe-flanging and bench vise. - Google Patents

Description

I. GAPP. COMBINED PIPE FLANGENG AND BENCH vlsE.

APPLICATION mm OCT. 6. 1946.-

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APPLICATION FILED OCT. 6. I916 Patented Feb-26,1918;

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COMBINED PIPE-FLANGING AND BENCH vrsn.

Specification of Letters Patent.

Patented Feb. 26, 191.

Application filed October 6, 1916. Serial No.'124,023.

To all whom it may concern:

Be it known that I, JOHN GAPP, a citizen of the United States, residing at Scranton, in the county of Lackawanna and State of Pennsylvania, have invented a certain new and useful Improvement in Combined Pipe- Flanging and Bench Vises, of which the following is a specification.

This invention relates to vises adapted for use in cutting, threading, and fianging pipe or tubing, and in performing other operations, the object being to provide an im proved structure of this character by means of which the various operations referred to may be carried on with greater rapidity, accuracy, and convenience, thereby saving much valuable time, and reducing the cost of the work. For this purpose my improve ment comprises a frame or body adapted to be mounted on the usual work bench, or in any other convenient location, and hav ing a pocket for containing and supporting a pair of removable and substantially vertical die blocks and pipe jaws, with means for sliding one of said die blocks horizontally in the pocket to clamp the work in position. These and other features of my improvement will now be more fully described in detail, and the novel combinations will be set forth in the appended claims.

In the accompanying drawings, Figure 1 is a plan view of a vise embodying my improvement; Fig. 2, a front elevation; Fig. 3, an end elevation; Fig. 4;, a transverse vertical section; Figs. 5 and 6, plans, showing a modified form of pipe jaws; Figs. 7 and 8, front elevations of the same aws shown in Figs. 5 and 6; and Figs. 9 and 10, views taken at right angles to each other and showing bench vise jaws attached to the upper ends of the die blocks or pipe aws. 3 As shown in the drawings, the preferred form of the construction comprises a base casting, 11, substantially rectangular, and having legs, 12, which maybe of any suitable length to give the desired height to the vise, when mounted on the work bench. The

body portion, 13, is supported on the base section, and may be secured thereto by the same set of bolts which pass through the base and rigidly fasten the same to the bench. The body section is formed with vertical end walls, 14 and 15, and a rear wall, 16, which is only about one-half the height of the end walls, and is cut away at the middle portion to provide clearance for manipulating the pipe. Above this rear wall the side walls are notched to form abutments for the rear retaining plate, 17, whichrests at its ends upon the rear wall, 16, and is out out at its middle or intermediate part around the pipe. This plate is designed to receive the horizontal thrust applied to the upper ends of the die block aws, and transmit the same to the abutments of the end walls which are provided with inclined buttresses, 18, extending to the back edge of the base, thus constituting a strong and rigid structure for receiving the hammer blows during the fianging operation.

The front retaining plate or wall, 19, extends between the end walls, and is spaced a sufficient distance from the rear wall, 16, to form a pocket of the proper width for containing the die block jaws, 20, which are mounted to slide therein. Although the front. retaining wall, 19, may be supported in various ways, I prefer to form the same rigid or integral with the base section, 11, while the body section is provided with lugs, 21, extending around in front of and against the wall, 19. This serves to strengthen the structure against the horizontal hammer stresses, since these will then also be transmitted from the end walls andlugs, 21, through the front retaining wall, 19, to the base section, 11.

The die blocks, 20, are located vertically in the pocket between the front and rear walls, and have a circular opening, one-half to each block, for the pipe and sleeve. A shoulder, 23, is formed in the opening for the purpose of receiving a pipe sleeve, such as 25, shown in Fig. 4:. The larger portion of the opening, at the front of the shoulder, is of the proper diameter to accurately fit a pipe sleeve for a certain size of pipe, while the smaller portion of the opening, at the rear of the shoulder, is provided with teeth, 24, for clamping the pipe, 26. This comprises a combined die block and pipe jaw, a different set having the proper sized openings, being used for each of the different sizes of pipe. One of the die block jaws may be secured in position by a pin or bolt, 29, extending through one of the end walls, 1-1, or other part. The other end wall, 15, is provided with an opening containing a threaded bushing through which extends the adjusting screw, 22, for shifting the other jaw horizontally in the pocket, and for clamping the pipe. The screw has a head fitted within a vertical slot or groove formed in the edge of the jaw, whereby the jaw maybe attached to the screw, and at the same time may be readily detached and removed by simply raising the jaw above the screw. A guide pin or projection, 30, may be provided at the lower portion of one of the jaws, and extend into an opening in the other jaw to prevent any relative tipping movement between the jaws. The end wall, 14, may also have a strengthening rib, 33, cast integral with the wall and the base of the body section for stiffening said wall against the end thrust of the adjusting screw.

- In Figs. 5, 6, 7 and 8, there is shown a pair of pipe jaws, 20*, having interlocking clamping plates, 20", which may be substituted for the jaws,'20, in the vise, when it is desired to operate upon pipes of various sizes without changing the jaws.

In order that my improved vise may also be used for performing the functions of an ordinary bench vise, the pipe jaws of either design, 20 or 20 may be formed with a dove-tailed recess, 31, at the top, in which recesses the detachable bench jaws, 32, may be inserted, as indicated in Figs. 9 and 10, whenever it is desired to .use the same for the usual operations of a bench vise.

- When my improving pipe vise is used in the operation of cutting, threading, flanging, etc-.,the rear retaining plate, 17, is removed, and a set of die block jaws having an opening of the proper size to fit the particular pipe is inserted in the pocket, the pipe being then passed through the opening and the screw turned to rigidly clamp the pipe in the smaller part of the opening, with the teeth, 24. The pipe may then be cut or' threaded at the desired point, after which the screw is loosened, and the pipe shifted for another operation. If it be then desired to apply a sleeve to the end of the pipe, said sleeve, 25, is fitted upon the pipe and inserted in the larger part of the opening between the jaws, with the inner end of the sleeve resting against the shoulder, 23, within said opening, as shown in Fig. 4. The jaws are then again clamped together by means of the screw, and the rear retaining plate, 17, is put in place. The fianging operation is then performed in the usual way with a suitable flanging tool, 27, and a pneumatic hammer, whereby the outer edge of the pipe is flared outward, as indicated in Fig. 4. A suitable finishing tool is afterward applied to seal the flange tightly over the outer end of the sleeve, as will be readily understood; A bead may also be formed in the pipe at the inner edge of the sleeve for securely holding the same in place at the .end of thepipe. During these operations,

the horizontal thrust due to the hammer blows are resisted by the rear wall, and rear retaining plate, the stresses being transmitted to the base section through the end walls and buttresses, and also through the lugs, 21, and front plate, 19, formed integral with the base. When the fianging operation ations may thus be performed very expedi tiously with the least amount of time lost in shifting or changing the position of the work, consequently the same may be turned out rapidly and at a diminished cost of production.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a pipe vise, the combination of a body having a pocket open at the top and provided with a bottom for supporting the jaws, vertically removable jaws mounted in said pocket, a rear wall for the pocket extending above the bottom thereof for bracing said jaws against lateral thrust, end walls, and a screw mounted in one end wall for adjusting one of said jaws horizontally in said pocket.

2. In a pipe vise, the combination of a body having a pocket open at the top and provided with a bottom for supporting the jaws, vertically removable jaws mounted in said pocket, a rear wall for the pocket extending above the bottom thereof for bracing said jaws against lateral thrust, and means for adjusting one of said jaws.

3. In a pipe vise, the combination of a body having a pocket open at the top and provided with a bottom for supporting the jaws, vertically removable jaws mounted in said pocket, a front wall and a rear wall extending above the bottom of the pocket for supporting said jaws laterally, end walls, and means for adjusting one of said aws.

4. In a pipe vise, the combination of a body having a pocket formed with end walls and a rear wall and open at the top, vertically removable jaws mounted in said pocket, one of said jaws having a vertical groove at its rear edge, and an adjusting screw mounted in one end wall and having a head engaging the groove in said jaw.

5. In a pipe vise, the combination of a body having a pocket formed with rear and end walls and open at the top, vertically removable jaws mounted in said pocket, the rear wall extending above the bottom of the pocket for bracing the lower ends of the jaws and a removable rear retaining plate for bracing the upper ends of said jaws.

6. In a pipe vise, the combination of a body having a pocket formed with rear and end walls and open at the top, vertically removable jaws mounted in said pocket, the end walls having abutments, and a removable rear retaining plate supported by said abutments for bracing the upper ends of said jaws.

7 In a pipe vise, the combination of a body having a pocket formed with rear and end walls and open at the top, vertically removable jaws mounted in said pocket, the rear Wall being located above the bottom of the pocket and below the opening in the jaws, and a removable rear retaining plate extending between the end walls and above the opening in the jaws for bracing the upper ends of said jaws.

8. In a pipe vise, the combination of a base section, a body supported on said baseand having a pocket with end walls, a rear wall and a front wall, said pocket being open at the top, vertical. jaws mounted in said pocket and removable vertically therefrom, and means for adjusting one of said jaws.

9. In a pipe vise, the combination of a base section, a body supported on said base and having a pocket with end walls, a rear wall and a front wall, the front wall being rigidly connected with the base section, and the body portion having lugs extending in front of said front wall, vertical jaws mounted in said pocket, and means for adjusting one of said jaws.

10. In a pipe vise, the combination of a body having a pocket, jaws mounted in said pocket and each having a semi-circular opening formed with an interior shoulder for holding a pipe sleeve, and means for adjusting one of said jaws.

11. In a pipe vise, the combination of a body having a pocket, jaws mounted in said pocket and each having a semi-circular opening formed with a shoulder for holding a pipe sleeve the opening at the rear of the shoulder being of smaller diameter and provided with teeth for clamping the pipe, and means for adjusting one of said jaws.

In testimony whereof I have hereunto set my hand.

JOHN GAPP.

floplet of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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