US1233898A - Automatic tank-closing device for oil-burning locomotives. - Google Patents

Description

I. H. MILLER. AUTOMATIC TANK CLOSING DEVICE FOR OIL BURNING LOCOMOTIVES.

- IN I/E III TOR e/mw hWJ/W A TTORIIIEYS Patented July 17, 1917 3 SHEETS-SHEET I APPLICATION FILED JULY 1, 1916.

WITNESSES I. H. IVIILLER. AUTOMATIC TANK CLOSING DEVICE FOR OIL BURNING LOCOMOTIVES.

APPLICATION FILED JULY 7, I9I6.

' Pafiwnted July 17, 1917.

3 SHEETSSHEET 2.

llVI/EIVTOR I. H. MILLER.

AUTOMATIC TANK CLOSING DEVICE FOR OIL BURNING LOCOMOTIVES.

APPLICATION FILED JULY 7, 1916.

I Patented July 17, 1917.

3 SHEETS-SHEET 3.

WITNESSES N mpg he mum/1 6 Mamas fiMJ/a/ ATTORNEYS I tlt JAMES HAMILTON MILLER, OF ARKANSAS CITY, KANSAS.

AUTOMATIC TANK-CLOSING DEVICE FOR OIL-BURNING LOCOMOTIVES.

messes.

Specification of Letters Patent.

Patented July 17, 1917.

Application filed July 7, 1916. Serial No. 108,039.

To all whom it may concern:

Be it known that I, JAMES H. MILLER, a citizen of the United States, and a resident of Arkansas City, in the county of Cowley and State of-Kansas, have invented a new and Improved Automatic Tank-Closing Device for Oil-BurningLocomotives, of which the following is a full, clear, and exact description. 4

y invention relates to a means for controlling the oil outlet leading from the tender to the fire box of alocomotive.

object of my invention is to provide means whereby to automatically close the oil outlet in the tender by the throwing of the engineers valve ofthe brake system to emergency position which is done when a wreck is imminen Other objects of its advantages, tion proceeds.

eference is to be had to the accompanying drawings forming a part of this specification in which similar reference characters indicate corresponding parts in all the views.

Figure 1 is a side tion showing parts of a locomotive and tender equipped with my invention;

Fig. 2 is a sectional side elevation of the invention and showing a portion L of the tender;

, Fig. 3 is a view slight modification in the invention, as well as will appear as the descripgiven to illustrate a matically effect the closure of the oil outlet in thetank, said view at the left showing a portion of the'tank while the engineers valve is shown diagrammatlcally in plan view;

Fig. 4 is a longitudinal sectional view on aas usual, with an an enlarged scale of the attachment to the engineers valve in Fig. 3.

The oil box of the tender is provided,

outlet 11, which suitable pipe connection 12 with the fire box 13 of a'locomotive 14.

The valve stem 15 is disposed vertically in the tender and operated in a fitting 16 in the top 17 of the tender, the upper end of the stem being provided with a handle 18. At the lower end, the valve stem extends through a guide or cage 19 and is rovided. with a valve 20, therebeing a 001 spring a 21 embracingthe valve stem and normally the the member .28 so that when the piston rod I p '2 elevation partly in sec-' the manner of taking the air from the engineers valve to auto- :35 for d employed in the form 'shown has ato be b beneath the holes 39, there being simi An air pipe leads from the cylinder 22 in front of the piston 23 to the engineers valve, designated generally by the numeral 26, the construction and operation of which is well known and need not be described. The connection between the pipe 25 and the engineers valve 26 is such that when the valve is thrown by its handle 26 to the emergency position, air will pass through said pipe to the cylinder 22 and thereb actuate the-piston 23. Ihe piston rod 2 extends from the piston 23, and outside of the cylinder 22, said piston rod is provided with a lateral member 28 which. receives a pin 29, said pin passing through a hole 30 in the member 28 and through a pinhole 31 in the valve stem 15. ;The head 29 of pin 29 lies against the forward side of moves forwardly, it will engage the said head 29" and withdraw the pin 29 from the pin-hole31 in the valve stem 15, thereby permitting the spring 21 to close thevalve- 20 to its seat, thus of oil in the box 10. I provide a vent which also, is controlled by the movement of the piston, as follows: In the top 17 is a vertically disposedfitting cutting off the outflow 32, the lower end 33 of which extends into the tank 10, and is formed with or'holes 34.

a vent-hole A tube 35 is slidable in the fitting 32 and epressing the same. The bore of the tube 35 is continued through the handle 35 sothat the said tube communicates with the atmosphere. Near the lower end, the tube 35 has a vent-hole or holes 36, adapted roughtinto register with the venthole or holes 34. Within the lower end 33 of the fitting 32 is a spring 37 within an inverted cup-shaped housing 38, disposed lower end of the tube 35. In the fitting 32 are registering transverse pinlar registering pinholes 40 .in the tube-35. I a

When the tube 35 is depressed against the pressure ofthe spring 37 to bring the ventprovided with a suitable handle holes, 34, 36,

piston rod.

. g its housing 38 rod 27 from turning,

the forward movement of the piston rod 27 'to withdraw the pin 29 for releasing the withdraw the pin valve stem 15,- will also 41, thereby permitting the spring 37 to raise andthe tube 35 to take the vent-holes 36 ofsaid tube out of register 'with the vent-holes 34, thereby cutting off the possibility of. oil escaping through said vent-holes in case the tender turns over and breakage of the fitting 32and stem occurs. In order to prevent the piston 23 and and to brace the said piston rod, a bar 22 is secured to the cylin:

der head and has guided engagement the member 28 of the piston rod. guided engagement is effected in the present instancev by producing a longitudinal slot 22 inthe bar 22 through which slot the member 28 extends whereby to brace the with piston rod against bending strains and prevent it from turning on its axis.

In order that the engineer, if he desires, may close the valve20 without affecting the described vent, 'I provide a chain or like flexible element 43 extending from the engineers cab to a connection with the pin 29, the connection being through the medium of an eye 29 on the head 29 of said pin.

v the pipe 25 leads In the usual construction of oil-carryingtenders also, there is provision made for receiving a measuring rod, there being provlded for the purpose, a tube in the top of the tender in which the measuring rod is usually permitted to remain. In order that no oil may escape at this point, I provide a plug 44 closing a 'through which the measuring rodmay be tubular member 45 inserted. The measuring rod may be hung on any suitable hook, (not shown), in the englne cab, and the plug 44 removed whenever said rod is required to be used.

In Fig. l, the pipe 25 directly taps the In the form shown in bracket. 46 or other suitable means, to the engineers valve, here indicated by the character 26 the character 26 indicating the handle. The pipe 25 corresponding with der 45. To direct air from the main reser- .v'oir A to the cylinder 45, the usual pipe a leading from the said reservoir to the engineers valve has a branch 47 communicating as at 48 with the pipe (1 and leading 'at its other end to the side of the cylinder 45. The pipe 47 supplying air to the cylinder 45 said cylinder,

. 56 therethrough leadin The- of which valve is formed from one end of the cylinis always in free communication with the but communication between the cylinder and pipe 25 occurs only when the engineers valve is in the emergency position.

For commanding the pipe 25, a piston 49 is provided in the cylinder 45, the stem or rod 50 of which is provided with a valve 51 at the end thereof closing a port 52 leading from the cylinder to the pipe 25*. A spring 53 coiled about the stem 50 abuts at one end against a pin 54 on said stem and at the other end against a partition 55, in said cylinder. The partition has air ports to the one side of the piston 49 and sai piston has an air port 57 therethrough of predetermined limited capacity through. which air may pass when the device is not in operation, whereby to equalize the pressure at both sides of the piston. An outlet port 58 is formed in the head 45 of the cylinder in front of the piston 49, and lateral ports 59 lead from the portv 58 to the. atmosphere. A valve 60 controls the port 58, the stem 61 with a head 62 adapted .to be engaged by.the handle 26 of the engineers valve when said handle 1s thrownto the emergency position, indicated in dotted lines Fig. 3, whereby to unseat the valve 60 and permit the escape of air from in front of the piston through the formed with a stud 64 which is adapted to move in a longitudinal groove 65 in the boss or boxing 45". Communicatlng with said groove 1s a depression or recess 66 to receive the stud 64 under the spring action of the arm 63 when the valve 60 is unseated by the handle 26 of the engineers valve. A knob or other finger-hold 67 is provlded on the arm 63 to disengage the stud 64 from the recess 66'. coiled about the valve stem 61 in a hous ng 69 formed in the boxing45", said spring abutting at one end against a pin 70 on the stem 61 tonormally seat the valve 60.

When the handle 26 of the engineers valve contacts with the head 62 and unseats the valve 60 the stud 64 will engage in the recess 66 and maintain the valve open. Air may freely escape from in front of the piston 49, the restricted port 57 servmg to maintain excess of pressure on the back of the piston 49 so that the said piston will be moved outwardly and unseat the valve 60, thereby permitting air to pass to the pipe 25 and to the cylinder 22 for moving the iston 23 as previously described.

It is to be understood that the tank devices shown in Fig. 3 are the same as in Figs. 1 and 2. The construction shown in Figs. 3 and 4, itwill be seen, results in no A compression spring 68 is 5 the head 62 in 1,2ee,eee :tt:

modification whatever of the usual construction of the engineers valve, and the bracket 46 may be secured to the exterior of the valve or other adjacent support to dispose position to be engaged by the handle 26".

Havingthus described "my invention, I

claim as new, and desire to secure by Letters Patent:

10 In an foil-burning locomotive, an oil container having an outlet, a valve controlling said outlet, a valve-closing means, a cylin-,

der, a piston in said cylinder, a piston rod on said piston extending to the outside of to Withdraw the same from the valve stem independently of the piston rod.

JAMES HAMILTON MILLER.

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