US1086480A - Oiling device for die-stocks. - Google Patents

Description

H.J.sUgLzEN. OILING DEVICE FOB. DIE STOCK@ APPLICATION FILED MAY 7, 1913,`

UNTTFD STATES PATENT GFFIC.

HERMAN JOSEPH SUELZEN, OF CHICAGO, ILLINOIS.

OILING :DEVICE FOR DIE-STOCKS.

To all 'whom t may concern.'

Be it known that l, HERMAN JOSEPH SUELZEN, a citizen of the United States, residing at Chicago, Illinois, have invented certain new and useful Improvements in Oiling Devices for Die-Stocks, of which the following is a specification.

The essential object of this invention is to provide a new and improved device for feeding oil to the dies which are used for threading pipe or the like, and in the specific form of the invention depicted in the drawings, the same is shown as being used in connection with a die stock such as that shown and described in my pending application for patent, Serial No. 7 45,840 filed February 3, 1913. It should be understood, however, that this oiling device may be used in conjunction with any form of die stock. In my aforesaid application, Serial No. 745,840, there is shown an automatic oiling device, whereas this application relates to a manuall -o erated oilinO mechanism. t5

In the drawings, Figure 1 is a vertical sectional View of the die stock and the oiling device, the lower part of the die stock being shown in elevation; Fig. 2 is a detailed sectional View on the line 2 2, Fig. l; and Fig. 3 is a vertical sectional view of a modiication.

The die stock is provided with a body 1 for supporting the dies 2, the body 1 being preferably hollow and being also polygonal in cross section, each side of the polygon being formed by a rectangular wall, and conical ends 6 and 9 extend from the polygonal prism to the operating levers. The dies 2 are provided with the screw-tln'eaded openings 3, which openings are in axial registration with other openings 4, and the pipe to be threaded passes through an opening 4 and that die 2 which is in registration therewith, it being understood that, as usual, the pipe to be threaded is firmly held in position by a vise, the stock and die being adapted to rotate about the pipe as an axis. For further details of the construction of the die stock itself, reference is made to my said pending application Serial No. 745,840.

Each die 2 is provided with a duct 30 which terminates at a point approximately midway between the two ends of the threaded opening 3. The body of the stock 1 is provided with a conduit or duct 31, there being as many conduits 31 as there are dies Specification of Letters Patent.

Application 1ed May 7, 1913.

Patented Feb. 10,1914. Serial No. 765,988.

in the stock, that specific embodiment of the invention herein shown being provided with three dies 2 and with three conduits 31. Below each conduit 31 is a small chamber 32, and a nipple 33 is screwed into the lower end of said chamber, said nipple being perforated and the perforation therethrough being in effect a continuation of the duct 30. The die 2 itself is recessed at 34 and the nipple 33 projects into said recess, said nipple being adapted, therefore, to assist in holding the die 2 in place. A cylindrical pin provided with the knob 3G, is rotatable within each duct 31, and the end 37 of said pin is beveled. lhen the pin is in the position shown in Fig. 1, the oil can pass from the duct 31 through the chamber 32 and nipple 33 into the duct 30, which lastmentioned duct conveys it directly to the pipe or other article upon which the threads are being cut. If, however, the pin 35 be rotated 180 degrees the beveled end 37 will close the mouth of the chamber 35 and will prevent the passage of oil from the conduit 31. to the duct 30.

The upper operating lever' 38 is provided with a cylindrical cavity 39. Said hollow lever 38 is secured to the plug 40, which said plug 40 is provided with a short duct 41, which said duct 41 being adapted to register from time to time with one or the other of the chiots 31. In Fig. 2 of the drawings, the plug is shown in such position that duct 40 registers with that conduit 31 which eX- tends toward the right in said figure, but the plug 40 may be turned so as to connect its duct 48 with either of the other conduits 31 shown in the drawings.

lThe conical head 9 terminates in the collar 42 within which the sleeve 43 is retained, said sleeve being held in position by the setscrew 44 which passes through a perforation in the collar 42 and which may be received either within a tap-hole in the sleeve 43 or otherwise, the object being to hold the sleeve 43 both against rotation and against longitudinal. movement. The plug 40 contains an annular recess 45 near its base, and within said recess the two halves of a split ring 40 are adapted to be received, said ring serving as a washer to engage the sleeve 43 and thus prevent the plug 40 and the hollow lever 38 from dropping out of position. Although longitudinal movement. of the plug 40 is thus prevented, it will be obvious that said members are free to rotate within the sleeve 43 and collar 42. The wall of the hollow lever 38 is provided with a perforation 47 and the sleeve 43 is perforated also at 48, these perforations 47 and 48 being necessary to permit communication between the duct 4l and the conduits 3l.

rEhe plug 40 is provided with a duct or conduit 49 which is preferably cut or bored along the line of axial rotation of the plug, the lower end 50 of said perforation being reduced in size so as to provide a valve seat for the small ball 51 which is kept normally seated by the helical spring 52 which eX- tends from said ball 50 to a short rod or pintle 58 which is received within the plug 40 and disposed substantially at right angles to the plugs aXis of rotation. It will be obvious from Fig. Q that the pintle serves also to lock the plug to the hollow shaft 39 and thus malte sure that the plug and shaft will rotate in unison.

At its upper end the hollow shaft 89 is adapted to receive a sleeve or coupling 54, which member 54 is provided with an o'set 55 within which the cap or screw 56 is placed. At the upper end the coupling 54 is interiorly screw-threaded at 57. The hollow handle 58 carries a threaded collar 59 which collar is screwed within the end 57 of the coupling 54. A washer GO, the construction of which is best shown in F ig. l, is placed between the Yhandle 58 and the hollow operating lever 39, said washer 60 being provided with a tapering valve seat 6l against which the ball 62 is adapted to rest. The washer GO is provided with a hollow off" set 63 perforated at 64, said perforation 64 being normally closed by the ball 65 which is pressed by the helical spring 66 against the mouth of said perforation G4. A chamber 67, which is intermediate the washer 60 and the hollow handle 58 communicates with the interior 68 of the hollow handle by means of a duct G9. The plunger TO is adapted to reciprocate within the chamber 68 of the hollow handle 58 being moved from right to left, Fig. l against the resistance of the helical spring 7l, and returning to the position shown in said ligure because of the expansion of said spring. lVithin the chamber 39 of the hollow lever 38 is a tube 72, one end of which is received within the plug 40 so as to register with the duct 4l, and the other end of which is received within the washer G0 so as to project partly into the offset 63, the helical spring 66 having one end resting upon an end of said tube 72.

When it is desired to use the device, the screw or plug 56 is removed and a quantity of oil is poured into the chamber 89, this filling being preferably done whilethe operating lever is in horizontal position. Then the lever 38 is in horizontal position the ball 62 will roll off the conical valve seat 6l so that as oil is poured in the oil will till not only the chamber 39 but also the chamber G8. The oil, however, cannot escape through the duct 49 for that is normally closed by the ball valve 5l. Neither can the oil normally enter the tube 72, the entrance to which is closed by the spring controlled by the valve 65. As stated before, this invention is not an automatic oiling device but requires manual operation in order to feed the oil from the chamber or chambers within which it is received to the die where the oil is required, and this manual operation which result-s in so feeding the oil is usually performed when the operating lever 38 is in vertical position. To feed the oil the operator forces the plunger TO toward the left7 Fig. l, and this movement of the plunger forces a quantity of the oil through the perforation G4, for the pressure upon the plunger will be sufhcient to unseat the spring controlled by the valve which normallyk closes the entrance to the tube 72. The oil which is thus forced past the spring controlled by the valve at the top of Fig. l drops by gravity through the pipe 72 and thence passes successively through the duct 4l, the perforations 47 and 48, and thence Aiters the conduit 3l which conveys the oil to the duct 30, which duct 8O leads directly to the screw-threaded tap-hole 3 Yof the die 2. By rotating the plug 40 within the sleeve 43 and collar 42 the duct 4l of the plug is carried into registration with any one of the conduits 3l desired, and in this manner each of the three dies with which the stock shown in F ig. l is provided, may be supplied with oil, the particular die to which the oil is conveyed depending merely upon the position of the plug 40 within the body of the stock.

In Fig. 3 a modification is shown and in said figure the invention is depicted as being applied to a stock which has but a single die instead of a plurality of dies. ln this form of the invention the duct 4l and conduits 8l are omitted and a pipe or tube T5 extends directly from the tube 72 to the die 2.

As the oil is forced out of the chambers 39 and 68 by the repeated actions of the plunger 70, it is obvious that a partial vacuum would gradually be created within said hollow chambers and the operation of the device somewhat impaired were not a vacuum relief valve provided, and it is the spring-controlled ball valve 5l which operates as such vacuum relief, for when the expulsion of the oil from the hollow chainbers 39 and 68 through the tube 72 has created a partial vacuum within the operating lever 38 and its handle 58, the pressure of the air from the exterior atmosphere will unseat said ball valve and air from the llO atmosphere may enter thro-ugh the air hole 50, although no oil can escape through said port 50.

It will be obvious that, besides the modification shown in Fig. 3, many changes in the details of construction and arrangement of parts can be made without departing from the scope of the invention.

I claim as my invention: f

1. A tool of the character described comprising a base, a collar projecting therefrom, a sleeve within the collar, a hollow shaft, a plug with which said shaft is in connection, and means engaging said plug and said sleeve thereby to prevent longitudinal movement of said plug and said shaft with respect to said sleeve.

2. A tool of the character described comprising a hollow shaft, a plug therewithin, a tube leading to said plug, a check valve closing the entrance to said tube, a plunger adapted to operate upon the oil within the hollow shaft and torce same past said check valve and into said tube, and a conduit ex tending from said plug to the point where the oil is to be used.

8. A tool oi' the character described comprising a hollow chamber, a tube connected with said chamber, there being a check valve intermediate said tube and said chamber to seal the port between the same, a second valve through which the oil is adapted to enter said chamber, a plunger within said chamber, said check valve being adapted to unseat and said second-mentioned valve being adapted to seat upon movement of said plunger, and a conduit extending from said tube to the point where the oil is to be used.

4L. In a tool oi the character described, the combination of a movable oil reservoir, a conduit extending from said reservoir to the point where the oil is to be applied, and valves in said reservoir and in said conduit.

5. ln a tool of the character described, the combination of an oil reservoir, a chambered member with which said member is in connection, a channel leading from the chamber in said member to the point where the oil is to be applied, a valve in said channel, a valve intermediate said oil reservoir and said chamber, and a plunger adapted to unseat said valve.

6. In a tool of the character described, the combination ot an oil reservoir, a chambered member with which said member is in connection, a channel leading from the chamber in said member to the point where the oil is to be applied, a valve in said channel, a valve intermediate said oil reservoir and said chamber', a plunger adapted to unseat said valve, and means to force the oil from said reservoir past said valve.

7 ln a tool of the character described, the combination of a hollow chamber, a washer having an offset, said oiset being provided with a port, a check valve normally closing said port, a tube adapted to convey the oil from said port, a second valve through which the oil is adapted to enter the reservoir, and means within the reservoir adapted to expel the oil therefrom, said means being adapted simultaneously to unseat said lirst-mentioned valve and to seat said second-mentioned valve.

8. In a tool of the character described, the combination of a die stock adapted to hold a plurality of dies, a conduit extending to each of said dies, an oil reservoir, a plug, said plug having a port adapted to coinmunicate with said oil reservoir, means for rotating the plug within the stock and thereby present said port plug to each ot said conduits, and means to force the oil from said reservoir through said port and into one of said conduits.

9. In a tool of the character described, the combination oi an oil reservoir, provided with a port thro-ugh which air is adapted to enter, a va ve adapted to' close said air vent, a channel through said air vent through which the oil is expelled 'from said reservoir, and means for expelling the oil through said channel.

l0. In a tool of the character described, the combination of a stock having a plurality of conduits therewithin, a plug adapted to rotate within said stock, said plug having a port adapted to be presented to each of said conduits, a sleeve within which said plug is received, said sleeve being perforated opposite to said conduits, said plug having an annular channel, and a washer received within said channel and cooperating with said sleeve thereby to prevent longitudinal movement oit' said plug with respect to said sleeve.

ln testimony whereof I hereunto atlix my signature in the presence of two witnesses.

HERMAN JOSEPH SUELZEN.

TWitnesses ELLIOTT R. GoLDsMrrn, Ron'r. KLoTZ.

Copier nf this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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