US895881A - Self-oiling die-stock. - Google Patents

Description

PATENTED AUG. 11, 1908.

J. MUELLER. SELF OILING DIE STOCK.

APPLICATION FILED 00122; 1907'.

,nseful Improvements in Self-'Oiling Die;

oil feeding device between the handle and hereinafter and set forthwith the claims appended hereto.

' respectively.

."tained in a 'lubr1cant.-'

. I w 3 and 4 are transverse sections on lines 3-3, I

:TOSEPI-I MUELLER, or sT. LOUIS, inssouni.

SELE-OILING DIE-STOCK.

Specification of Letters Patent. fi at ented v I r v I A i Application filed October 22, 1907. Serial No. 398,647.

To all whom it may concern: a Be it'lrnown that .I,'- JosEPH MUELLER, a l sarily, limited to a stock of'this t vp citizen of the, United States, residing at St. v i LOUIS, 1n the county of St. Louis, City and body of the stock which is providedwithtu- State of Missouri, have invented new and I i V I 4. swiveled the handles B of the stock The S'tOCl( S,O fWl1lCl1thefOllOWlIlgiSfiSPGClfiCfiillOll. handles B are tubular and extend intixlithe This invention relates to .die stocks, and i I I i if more particularly to devices fonoiling the work cut by the dies. i The invention has for one of its objects to improve and simplify the construction and operation of devices of this characterso as to tie-comparatively easy and inexpensive to manufacture, reliable in use, and convenient of a. nut Z threaded oneach arm 1 and engag ing an annular flange 3 on the handle; The outer extremities of the handles have filling openings 4 that are normally closed by screw plugs i5, whereby the lubricant is prevented. from flowing out as the die is turned. Each arm. 1 has an internal annular shoulder-or to manipulate. r A further object of the invention is the provisio'nof a die stock in which the handle or handles constitute reservoirs forlubricant. Another object is the employment of an passes through a radial opening'Q in the sleeve 10 of the stock and terminates adja cent the dies'11 so as to discharge lubricant on the latter and work cut-thereby; The member 7 is frictionally held in place in the arm 1, and extending outwardly is alcentral air inlet tube 12, Fig; 2,"whie h. projects into the handle B, and connected with the inner end of the handle is a valveC which is adaptbody of the: stock,which device is controlled by a rotary movement of the-handle' for opening the supply of, oil andc'utting it off. The invention has as a further object to provide a die stock having a lubricant feed ing device controlled by a handle of the stock, the handle beinglautomatically mainposition to prevent the flow of having a central aperture 13 to receive the ,a-ir'in-let tube 12, and it is removably con- VVith' these objects in view and others, as nected with the handle by a screw thread l i. will appear as the description proceeds, the invention comprises the various novel features of construction and arrangement of parts which-will be more fully described particularity entirely through the sameand adapted to be brought into register with the oi l' feeding tube 8, and the valve has another angular port 16 that registerswith a port 17 in the In the accompanying drawing, which illust rates one of the e'mbodiments' of the in vention, Figure l is a central longitudinal section of the die'stocli with parts in elevation and equipped with the self-oiling'attachment. Fig. 2 is a central longitudinal section of one of the ha ndles of the stock showing the lubricant feeding device; Figs.-

. with an opening 13 ir'rtl'ie air inlet/tube]? so that air can enter the ,liandleas liibrica'iitis fed therefrom, Norinallyfthehandle in such a position thatthe flow of lubricant and held inthis positioirb a helical torsion spring 19 that has its outer end cngaged in a slot 20 in' the air inlet tube, and its innerend Fig. 4, showing the position of the oiling device in feeding position and closed'position, v

i the position shown in Fig. 4. For limit ng Similar reference characters are employed the angular movement of the handle the to designate corresponding parts throughout valve has a peri iheral flange QZ'which exthe several viewsi Y tends three quarter wayaround thc'sa'meso In the present instance, I have elected to 1 illustrate the invention in connection with a 1 stock commonly known in the,trade as the duplex adjustable die stock but it i to bel.

walls 24 are adapted to engage with a pin fixed plug or member 7. I;

Aug. 1191908.

' Y 1 understood that the; inven tioiris ndt ncces' bular extensions or arms onfwliichjare arms 1 to which'they' are 'attachedby .in'ea'ns seat 6, on which is seated a plug 7 which is provided with a short. pieceof tubeb that ed to contr'olthe flow of lubricant from the handle. This valve is in the form of a disk The valve has a port or passage 15 extending plug 7 when the port 15 registers' with' the tube 8, and at the same time also registers entrance of airare cut oil, and the handlois engaged in a recess 2l in the valve, the ten-" sion of the spring acting to hold the parts in as to leave a quadrantrecess 23 whose end i Referring to the drawing,A designates the '110 25 extending outwardlyfrom the r'el i w t y In practice, the screw plugs 5 of the handles are taken out and the handles filled one after the other with lubricant. Since the valve-closing springs 19 hold the handles so that the ports and 16 do not register respectively with the tubeS and port 17 as shown in Fig. 4, no, lubricant will feed from the handles. When the stock is applied to a piece of work to be threaded, the dies and work can be lubricated by merely turning one or bot-h handles so that the ports will register, as shown in Fi 3, thereby permitting oil to pass througi the ports 15 and tubes 8, while air enters through the ports 17, 16 and 18, and tubes 12-. As soon as the handles are released, the springs 19 will "return the handles to normal position and thereby cut oil theflow of oil and close communication between the atmosphere and handles. It will thus be seen that the lubricating devices are easy and convenientto operate and dispense with the need of the usual oil can, thereby saving time and permitting the cutting operation to be continuous without stopping to apply lubricant.

From the foregoing description, taken in connection with the accompanying drawing, the advantages of the construction andof the method of operation will be readily apparent to those skilled in the art to which the invention appertains, and while I have .de

scribed the principle of operation of the invention, together with the apparatus which I now consider to bethe best embodiment thereof, I desire to have it understood that the apparatus shown is merely illustrative and that such changes may be made when desired as are within-the scope of the claims.

Having thus described theinvention, what I claim is 1. The combination of adie stock having 'a tubular arm, a hollow handle fitted therein for rotary movement, said handle constituting a reservoir for lubricant, a duct leading from the handle to the socket of the die for lubricating the work, and a valve in the armarranged to be opened and closed by the rotary movement of the handle. v

2. The combination of a die stock provided with a socket having a hollow arm, a ported. plugin the arm, a feed tube in the stock and extending from the ort of the plug to the said socket, a rotata le handle on the arm and constituting a reservoir'for lubricant, a valve secured to the arm and arranged to be moved to open or closed position by the latter. for permitting lubricant to feed to the said tube.

3. The combination of a die stock provided with a tubular arm, a handle mounted thereon "for rotary movement and constituting a reservoir for lubricant, a fixed plug in thearm and having tubes extending one into the mit the air to enter the handle through on; tube and lubricant to feed from the handle to the other tube, and a spring operating on the handle to hold the'valve in closed position.

4, The combination of a die stock comprising a body, and a handle rotatably mounted thereon and forming-a lubricantcontaining reservoir,'with a device arranged prising a body, a hollow handle rotatably mounted thereon and serving as a reservoir for lubricant, means for supplying lubricant fromthe handle to the dies of thestock, and a valve device secured to the inner end of the handle and arranged 'and constructed to be opened and closed by the 'movement oi' -th e latter for controlling thes'upply of lubricant.

6. The combination of a die stock comprising a die carrying body, a hollow handle mounted thereon to turn and forming a lubricant-containing reservoir, means arranged between the stock and handle for supplying lubricant fromthe latter to the dies, means for admitting air to the handle, and a valve controlling bot-h means and movable with the handle.

7. The combination of a die stock coniprising a die carrying body, a hollow handle mounted thereon to turn and forming a lubric-ant-containing reservoir, means between the stock and handle for supplyinglubricant from the latter to' the dies, means for admitting air to the handle, a valve controlling both means and movable with the handle, and a spring operating on the handlet'or holding the valve mclosed position.

8. The combination of'a die stock consisting of a body having a tubular arm, a hollow.

handle 'removably and rotatably mounted in the body of the stock for supplying lubricanttoithe dies,-an air inlet't'ube on the member extending into the handle, a valve removably connected with the inner end of thehandle and-providedwitli orts adapted to register with the said tubes or permitting air to enter the handle through,one tube and lubricant to flow to the dies through the other tube,

means forlimiting the rotary movement of the handle, 'and-a spring arranged to automatically return the handle to normal posi-- tion for cutting ofi';the supply of lubricant to the dies.

In testimony whereof I aflix-iny signature in presence of two'witnesses JOSEPH MUELLER.

Witnesses: HERBERT S. GRIFFIN, AUGUST PAPE.

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