US1349330A - Fluid-operated vise - Google Patents

Description

IIII

-J. DITSON.

FLUID OPEBATED VISE. APPLICATION FILED IuLY 22,1919.

Patented Aug. 10, 1920.

2 SHEETS-SHEET l.

J. DITSON.

FLUID OPERATED VISE.

APPLICATION FILED JULY 22,19I9. 1,34195330.

Patente Aug. 1I), 192

2 SHEETS-SHEET 2.

v ESSI'.

A TTIMIEY UNITED vSTATES PATENT OFFICE.

JEssE Dirson, or LrrTLE'roN, coronare, AssreNoE, BrivrEsNE ASSIGNMENTS, To INGEEsoLL-EAND COMPANY, A ccErcEATroN or NEW JERSEY.

FLUID-OPERATED VISIE.

Specification of Letters Patent. Patented Aug, 10, 1920,

Application filed July 22, 1919. Serial N0. 312,570.

To all whom 'it may concern:

Be it known that I, JESSE Dirson, a citizen of the United States, residing at Littleton, in the county of Arapahoe and State of Colorado, have invented a certain new and useful Improvement in Fluid-Operated Vises, of which the following is a specification.

This invention relates to a pinning out device for drill steels and in particular to a fluid operateddevice for securely grasping the drill steel and holding it in alinement with a reciprocatory pin while the steel is being pinned out.

The objects of the present invention are to improve the form of pinning out machine described and claimed in my Patent No. 1,306,106 granted June 10, 1919.

A further object of the invention is to improve the device forxclosing and tightening the jaw members of the vise about the drill steel, furthermore to improve the method of operating the vise closing means by fluid pressure.

lilith these and other objects in view my invention consists in the features of construction andy operation set forth in the following specification.

In the drawings annexed hereto and forming a part hereof:

Figure 1 shows a plan view of the device, parts being brokenV away 'to more clearly show the construction;

Fig. 2, the side elevation of the complete tool, the cover plate being broken away to more clearly show the operating means for closing the jaw members of the vise;

Fig. 3 is a front elevation of the complete device; f

Fig. i, a perspective view of one of the vise jaws and operating device;

Fig. 5, a view of one of the jaw members, and

Fig. 6, a view showing the pin retaining means.

Referring more particularly to the drawings, 1 refers to a suitable pedestal or support upon which the complete device may be conveniently mounted and secured by any well known means, or if desired, this mechanism may be conveniently mounted at one side of a drilrlsharpener. The body member of the pinning out device shown at 2 is provided with .two cylinders atits rear end, one

being shownat 3,the other at 4:, and at the for-ward end of the body member 2 is a cross member 5 in which are located the jaw members 6 and 7 of the device to be more olefinitely referred to, hereinafter.

Within cylinder 3 operates a piston 8 to which a piston rod 9 is attached, extending from its forward face. Piston rod 9 eX- tends through the forward end of cylinder 3, through a suitable packing box or gland '10 and, at its forward end has attached thereto a pin 11. Pin 11 may be secured at the forward end of piston rod 9 in any suitable manner, the method shown in Fig. 6 being simple and may be readily operated to remove or replace pins as they become worn or damaged. Briefly this method of attaching comprises a clamping nut 9ZL threaded into the forward end of the piston rod 49 and through which the pin 11 extends.

The' piston 8 may be operated forwardly and backwardlyV in its cylinder 3 by any suitable valve mechanism which it is thought unnecessary to fully describe. A suitable valve for operating this piston as well as piston 13, is shown at Fig. 2 at 12 and comprises a double headed balanced valve, movement of which conveys fluid under pressure to the forward or back ends ofthe cylinder 3 as well as cylinder L1, and which may be readily controlled. by a suitable handle 25 attached to one end of the valve stemV 26.

Within cylinder A piston 1S operates to which is attached a piston rod 14. Preferably the lines of movement of piston rod 9 and piston rod 111 are in alinement respectively with piston 8 and piston 13. This piston 18 is moved forwardly and back as above vdescribed by the same valve 12 used to operate piston 8.

Referring now more vparticularly to the vise and the jaw members, the two jaw members 6 and 7 are oppositely disposed and equally distant from the axis on which the pin 11 operates and are slidably mounted within the cross member 5. A cross shaft 15 having left and right screw threaded por, - tions 16 and 17 is threaded to jaw members 6 and 7 near the lower surface of these jaw members and thus by rotating the cross shaft 15 the vise members 6 and 7 will be brought together more closely or separated depending upon the direction of rotation of Shaft 15.

Jaw member 6 comprises one rigid part mounted to swing on `part 33 as at35 and is provided with an arcuate steel gripping face of long radius formed eccentric to the pivot 35 and thus by swinging in either,v

' direction -brings the eccentric arcuate steel gripping surface of 34 closer to the oppos-` ing straight steel gripping surface of jaw 6 after rotation of shaft 15 has ceased and the pin 11 is being forced into or out of theA drill. steel.

At one end of the shaft 15 is provided a small sprocket' gear 18 made fast in any suitable way to the crossv shaft 15. Another small sprocket wheel 19 is mounted rearward of and in alinement with sprocket wheel 18 at any convenient part of the body member 2 and a chain 2O is passed around both sprocket wheels 18 and 19. The forward end of piston rod 14 is attached in any suitable manner to one of the links-'of chain 2() as shown at 21 so that movement of piston rod 14 will operate the chain 2O in either direction and thus rotatethe cross shaft 1'5. The sprocket wheels 18 and 19 are spaced sufficiently widely apart that the complete movement of pistonv rod 14C may take place without the linked connection 21 coming in contact with either of the sprocket wheels 18 and 19. f

. Preferably the connection between the Y chain 2O and piston rod 14 takes the form of a small cross head which has a part 22 sliding in or upon a suitable `guideway 23 in order to keep the forward end of piston rod 14 in proper alinement.

For convenience in blowing the scale from the hole in the drill steel a small blower is mounted in the pinning out machine as shown at 30. This is in communicationvwith the source of compressed air supply through a pipe 31. Preferably the blower is provided with an air pressed nozzle valve member 32 so that a drill steel maybe forced vagainst the nozzle member 32 which serves to open the valve admitting a blast of air under pressure to thoroughly cleanse the hole in the drill steel.-

From the above description of the conto open the central hole to the desiredY amount but if desired the pin 11 may be forced into the drill steel several times if found necessary. i A Movement of the handle 25 in the reverse direction returns the piston 8 and pin l1 to their rearmost position thus removing the pin from the drill steel and further reverse movement of the handle 25 servesto bring the valve l2 back to its initial position which forces the piston 13 and rod 14 rearward thus opening the jaw members of the vise.

It is to be understood that the present showing and description disclose only one specic embodiment of my present invention, and that other formsV andmodications are included within the spirit and scope thereof, as expressed in the appended claims.

`What I claim is:

1.7In a pinning out machine for drill steels, a pair of movable vise jaw members,

Va left rand right screw threaded member threaded member.

2. In a pinning out machine for drill steels, a pair'of visejaw members, a screw threaded member for moving said jaw members toward and away from each other, a piston, a piston rod, a gear mounted on said threaded member and operatively connected with said piston rodwhereby movement of said piston will rotate said threaded member and force the jaw members towardror away from each other; 3. In a pinning out..machine for drill steels, va pair'of vise jaw'members adapted to grip a drill steel, a threaded member rotation of which is adapted to move said jaw members toward or away from each other, means for rotating said threaded member comprising a fluid operated piston, a piston rod, a chain'attached to said piston rod and moved by said piston and a gear mounted on said threaded member and engaged by said chain.-

4. In a vise'constructiona pair of oppositely disposedV relatively movable vise j aw members, a shaft having threaded poi'- tions engaging said jaw members, a gear on said shaft, a chain engaging said gear and fluid operated means ffor operating said gear and chain to move the jaw members toward and away from each other.

5. In avise construction, a pair of oppositely disposed jaw members siidably mounted and adapted to be forced toward 0r away from each other, one of said jaw members having a curved gripping face and pivoted to swing slightly to more securely grip an article between said jaws.

6. In a vise construction, a pair of oppositely disposed jaw members slidably mounted and adapted to be forced toward or away from each other, one of said jaw members having a straight gripping face, the opposite jaw member having a curved gripping face and adapted to swing about a pivot to more firmly grip an article between said jaws.

7. In a vise construction, a pair of oppositely disposed jaw members slidabiy mounted and adapted to be forced toward or away from each other, one 0f said jaw members having a straight gripping face7 the opposite jaw member having an eccentrica'lly pivoted gripping member to more firmly grip an article between said jaws.

In testimony whereof I have hereunto set my hand.

JESSE DITSON.

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