US839922A - Car-axle-box lid. - Google Patents

Description

PATENTED JAN. 1, 1907.

W. G. DUNHAM. OAR AXLE BOX LID. APPLICATION FILED 00130, 1905.

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UNITED STATES PATENT OFFICE.

CAR-AXLE-BOX LID.

Specification of Letters Patent.

Patented Jan. 1, 1907.

Application filed October 30,1905. Serial!- 285,016.

To all whom, it may concern.-

' Be it known that 1,-WILLIAM G. DUNHAM,

a citizen of the United States, residing at Chicago, in the countyv of Cook and State'of Illinois, have invented certain new and useful Improvements in Car-Axle-Box Lids; and I do hereby declare-the follo glto be a. full, clear, and exact description of t e invention, such as will enable. others skilled in the art to which it appertains to make and use the same.

My present invention relates to car-axlebox lidsv of the character set forth and broadly claimed in my Letters Patent No. 803,155, issued October 31, 1905, entitled CarAxle-Box' Lid; and it: consists of the novel devices and combinations of devices hereinafter described, and defined in the claims I The invention is illustrated in the accompanying drawings, wherein like characters indicate like parts throughout the several views.

Referring to the drawings, Figure 1 is a view principally in side elevation, but with some arts sectioned v and others broken away, 1 lustrating my invention as applied to a car-axle box. Fig. 2 is a vertica section taken approximately on the line a m of Fig. 1, some parts left in full. Fig. 3 is a section on the same line as Fig. 2, but showin the lid turned into its open position; and Fig.4 is a detail in section on-Jthe line 00 r of Fig. 1, some parts being removed.

l Thenumeral 1 indicates the axle-box, and the numeral 2 a portion of the axle. The

7 box in line with its'mouth-opening is formed with a transversely-extended upwardly-13rd jectingfulcrum rib. 3 and with a pair of outw'ardly-projecting laterally-spaced bearing lugs 4, which, asshown, are cast integral with the said rib 3. These l'ugs 4 have alined erforations 5, and one thereof is slotted at 6 or a pur ose which will presently appear.

The li 7, which is preferably constructed of malleable iron and 1s bulged outward at 8 and inward at 9, is formed at its extreme upper edge with a semicylindrioal fulcrum-seat 10, that engages and rotates upon the rounded upper edge of the'fulcrum-rib 3. Said lid is also formed with a perforated lug 11, that projects inward from the central portion of its bulge '9. Webs 12, formed on the sides of the lid at the. ends of the fulcrumseat 10, engage with the ends of the-fulcrumribs 3 and hold the lid in working position against transverse sliding movements.

The numeral 13 indicates a bolt which is or head portion 14, that is journaled in the perforations 5 of the two bearin -lugs 4. The bolt and its head constitute w. at may be termed a T-bolt, and the said-head 14 is connected to the body-bolt 13 by a thin transversely-extended neck 15, and the said bolt is provided adjacent to said neck with a flange 16. The free end of the bolt 13 works loosely tlfrough the perforated lug 11. of the lid, and below and outward of said lug it is provided with a stop -pin 17. A coiled spring 18 is placed on the bolt 13 and is com-- pressed between the flange 16 thereof and the said perforated lug 11.

The following im o'rtant relation of the,

parts above describe should be noted The spring 18 of the thrust device exerts a strain on a line that obliquely intersects the mouth of the box, and it finds its fixed base of reaction against the box-lugs 4 and its movable base of reaction against the perforated lug 11 of the lid. l/Vith this arrangement the sprin exerts a force which not only tends to hol the lid closed, but which seats the lid a ainst the mouth of the box atits upper an side portions, as well as its lower portion.

In all positions of the lid the spring 18 exerts a force which tends to maintain engagement between the fulcrum-seat 10 of the lid and the fulcrum-rib 3 of the box." In moving the lid from its closed position (shown in Fig. 2) into its extreme open position (shown in Fig. 3) the line of strain of said spring 18 is carried by adead-center with respect to the axis of the bolt-head 14 and the axis of 3, and when it reaches the position shown in 3 the line of strain of said spring is below the said fulcrum-rib, so that the spring then tends to hold the lid in its open position. the lid is limited by engagement of the stop- The extreme opening movement ofprovided with a transversely-extended shaft pin 17 with the perforated lug 11 of the lid,

and in this position of the lid the body of the fulcrum-seat 10 of the lid is forced off from the rounded edge of the fulcrum-rib 3, and the lower edge only of said seat is thrown against the said fulcrum-rib, thereby reduc-' ing the leverage action of the spring 18 at this time. "Vvhen the lid is in its closed position, the stop-pin 17 of the bolt 13 stands slightly out of engagement with the lug 11' of the lid, so that the spring may then exert a force tending to hold the lid closed. In all intermediate positions of the lid the spring 18 is compressed toa greater extent than shown either in Fig. 2 or in Fig. 3, and the stop-pin 17 is then carried'iarther away from the said lug 11.

When the lid is moved from its closed to its open position, or vice versa, the spring thrust device gradually changes its angular position, both with respect to the box and with respect to the lid, and is moved from one side to the other from a dead-center, as already stated.

When the lid is in its open position, (shown in Fig. 3,) it may be removed from working position by forcing it inward, so as to carry the seat 10 away from and over the rounded edge of the fulcrum-rib 3. This of course must be done against the tension of the spring 18, and a very considerable force will be required to accomplish this result. When the lid is disengaged from theiulcrum-rib 3 and the stop-pin 17 is removed from the bolt 13, the spring 18 will throw the perforated lug 11 off from said bolt, and the said lid will then be entirely disconnected from the box. When the T-shaped bolt 13 14 is then turned downward. to an intermediate position, .so that its flat neck 15 alines with the slot 6 of the lug 4, the said neck may be passed through said slot 6 by a lateral movement of said bolt, and the said bolt in this way be easily removed from working position. It may of course be applied to the lugs by a reverse action. Of course, if, desired, more than one of the said T-bolts and cooperating springs may be employed in connection with the. single box and lid, in which case the said T-bolts will be located with their shaft-like heads 14 in axial alinement.

The lid and the thrustdevice described are of very simple construction and of small cost. They may be very quickly assembled or disconnected and have no parts that are liable to get out of order.

What I claim, and desire to secure by Letters Patent of the United States, is as follows: I

1. The combinationwith an axle-box, of a lid hinged thereto, by means of a separable hinge permitting the lid to be lifted from the box, and a spring thrust device obliquely intersecting the mouth of the box, when the lid is closed, said spring thrust device reacting.

against the lid and a fixed base of resistance on the box, said spring thrust device having an angular movement both in respect to the lid and the box, and exerting a strain tending to maintain engagement between the hinge members, substantially as described.

2. The combination with. an axle-box, of a lid hinged thereto, by means of a separable hinge permitting the lid to be lifted from the box, and a spring thrust device obliquely intersecting the mouth of the box, when the lid is closed, said spring thrust device reacting against an inwardly-projected intermediate portion of the lid and a fixed base of resistance on the box, said spring thrust device having an angular movement both in respect to the lid and the box, and exerting a strain tending to maintain engagement between the hinge members, substantially as described.

3. The combination. with an axle-box having a fulcrum-rib above its mouth-opening, of a lid having at its upper edge a seat that engages said fulcrum-rib, to form the lid-hinge, a spring thrust device obliquely intersecting the mouth of the box, when. the lid is closed, and reacting against an intermediate inwardly-projecting portion of the lid and against a base of resistance on the box, said spring thrust device having an angular movement both in respect to the lid and the box, when said lid is moved, substantially as described. 1

4. The combination with an axle-box having a fulcrum-rib above its mouth-opening, of a lid having an open seat loosely engaging said fulcrum-rib, a bolt pivoted to lugs on the box and working loosely through an inwardlyprojecting lug on the intermediate portion of the lid, a spring on said bolt reacting against said bolt and against the lug on said lid, said bolt and spring. having angular movement both in respect to the box and to the lid, said spring tending to maintain engagement betweensaid fulerum-rib and seat, substantially as described.

5. The combination with an axle-box and a lid connected thereto by a separable hin e,

' said box having outwardly-projecting per orated bearing-lugs, one of which is slotted, and said ,lid having an inwardly-projecting perforated lug, of a T-bolt havin a shaftlike head seated in the perforated bearinglugs of said box, and having a flattened neck adapted to pass through. said slotted lug under a lateral movement of said T-bo-lt, said T-bolt being passed through the lug of said lid, and a coiled spring on said bolt compressed between a collar thereon and the lug of said lid, substantially as described.

- 6. The combination with an axle-box and a lid hinged thereto, said box having perforated bearingdugs, and saidlid having an inwardly-projecting perforated bearing-lug,

of a T-bolt having its head pivoted in the bolt, for limiting the opening movement of lugs .of said box and having its free end the box, substantially as described. to passed through the lug of said lid, a s rin In testimony whereof I allix my signature on said bolt pressing against the lug ot said in preseiioe'of two witnesses.

lid, the thrust device made up of said bolt WILLIAM G. DUNHAll I. and spring being movable from one side to Witnesses: the other of a. dead-center under movements S. BLANCHE KLAUCK,

of said lid, and a stop at the outer end of said J. W. KLAUGK.

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