US1090085A - Journal-box. - Google Patents

Description

I. A. RANDEL.

JOURNAL BOX.

APPLICATION FILED 00T.16, 191av 1,090,085, Patented Mar. 10, 1914 2 SHEETS-SHEET l.

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JOURNAL BOX.

APPLICATION FILED 0012.16, 191sv Patented Mar. 10, 1914.

UNITED STATES PATENT OFFICE.

IVAR A. RANDEL, OF CHICAGO, ILLINOIS, ASSIGNOR 'IO McCOR-D AND COMYANY, 0F

CHICAGO, ILLINOIS. A CORPORATION OF NEW JERSEY.

JOURNAL-BOX.

Specification of Letters Patent.

Patented Mar. 10, 1914.

Application filed October 16, 1913. Serial No. 795,513.

To all whom it may concern:

Be it known that I, Ivan A. RANDEL, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in J ou rnal-Boxes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the without making any special provision for thanthe metal of tie cellar.

abnormal contraction of-these upper edges of the cellars; and While this operation resulted in the production of a journal box much superior to any journal box previously produced, still the box was not completely satisfactory for the reason that cracks would occur in the edges of the cast top. These cracks were due to the fact that the molten metal of the cast top, being very much hotfor than the contacting edge of the cold cellar, would, in coolin shrink very much more As a feature of the said prior journal box, the cellar had its upper edges perforated, or otherwise suitably formed for interlocking engagement with the top which was cast thereon. This arrangement, while it more securely fastened the top to the cellar, also more positively prevented slippage 0f the metal of the top, in respect to the engaged edges of the cellar, in the process of cooling, with the obvious result that the tendency to crack the cast top, in cooling, was increased. While this cracking of the top of the journal box in cooling, due to the different shrinkage values of the cellar and top, would not, in all cases render the boxes useless, nevertheless, it decreased the strength of the top and the entire box, and the boxes were defective to that v extent, and not the best -product for comof the independently constructed cellar, abnormally contractible.

The statement that the edge of the box is made abnormally contractible, is intended to define an edge that is capable of a contraction which is independent of and much greater than the normal contraction which takes place in such edge of the cellar, in the natural process of cooling the metal thereof. The best way that I have so far discovered for making this edge abnormally contractible, is to provide the same with a series of slits and to apply stoppers to these slits, which stoppers will prevent the molten metal of the top from running into and cl0sing the slits, in the process of casting. These series of slits permit the intervening edge portions of the cellar to move bodily toward each other to compensate for the relativelygreat contraction which takes place in the cooling of the top which has been cast onto the cellar.

The term stoppers is herein used in a broad sense, to include any devices or materials which, when properly applied, will prevent the molten metal from running into the slits or cuts provided in the edge of the cellar to make it abnormally contractible and permit the contraction of the edges of the cellar. In practice, I have used thin U- shaped steel stoppers that are sprung onto the edge of the cellar astraddle thereof, in

position to cover the slits and prevent the molten metal of the top from running into the same. In other words, in the completed box the edges of the cellar are abnormally contracted by the shrinkage of the metal of the cast top. My improved box herein disclosed also involves certain other features of invention which will appear in the detailed description and be defined in the claims.

In the accompanying drawings, which illustrate the journal box constructed in accordance with my present invention, like characters indicate like parts throughout the several views.

Referring to the drawings: Figure 1 is a plan view of the box with some parts broken away, and with some parts sectioned on the line m m on Fig. 2; Fig. 2 is a section taken through the box on the line w w on Fig. 1; Fig. 3 is a fragmentary view in side elevation illustrating the construction of the joint between the cellar and cast-top; Fig. 4 is a section taken on the line'm" w on Fig. 3;

showing the top cast fast on the cellar.

In the construction illustrated, the pressed steel cellar l is formed with an integral rear end or outside dust guard wall 2 having the usual large axle passage 25 and having its upper edge portion separated by a gap 4. This gap 1 is a feature of practical necessity in the commercial construction of the cellar, wherein the body of the cellar is advisably stamped or pressed from a single piece of sheet metal,- preferably of sheet steel. In practice, it will be noted that in this cellar, the upper edges thereof, are spaced apart from end to end, so that primarily, there is no connection, bridge or tie between the upper edge portions of the cellar.

The separately formedinside dust guard wall 5 is also advisably constructed from sheet steel and is preferably provided withflanges 6 on its bottom vertical edges. To adapt the cellar to receive the dust guard, not shown, between its inside and outside dust guard walls, its inner end portion is slightly expanded, thereby forming vertical stop shoulders 1", against which the inside dust guard wall 5 is arranged to be seated. When this .inside dust guard wall 5 is inserted within the cellar, its flanges 6 hold it properly spaced from the outside dust guard wall and seated against the shoulders 1.

To provide for an interlocking connection between the cellar and the cast top of the box and between the upper edge of the dust guard wall 5 and the cast top, the said cellar and wall are provided, in their upper edges with perforations 7. To make the upper edges of the cellar 1 and wall 5 abnormally contractible, they are formed with longitudinally spaced slits or notches 8. Before the cellar is presented to the mold or flask in position to have the top cast thereon, the dust guard wall 5 is, of course, properly positioned in the cellar, and all of the slits 8 are closed by the application thereto of the proper stoppers. The U-shaped sheet metal stoppers, which, as above stated, have been used in practice, are indicated by the numeral 9, and they are slipped or sprung onto the upper edges of the cellar and dust guard wall 5, in position to cover the slits 8 thereof. In Fig. 5, several of these stoppers are shown as applied. As other practical forms 5 more sli before the top has been cast thereon; and Fig. 8 is an inner end elevation of the box 1 .vould be necessary.

when, as already indicated, the cellar with its dust guard wall has been properly positioned or properly presented to the mold or flask, the cast metal top 10, preferably of cast steel, is cast fast directly onto the said contractible edges of the cellar and dust guard wall. The top thus cast onto the top of the cellar becomes not only mechanically interlocked to the contractible edges there of, but, in the process of casting, fits itself exactly to all irregularities in the contacting metal of the cellar, and, under the shrinkage in the act of cooling, the union and grip between the metal of the top and of the cellar is extremely close and strong. \Vhen the top is cast of steel, and at high temperature, there will also be more or less fusion of the metal of the cellar and welding union made between the metal of the top and of the cellar. As already clearly indicated, the cast top in cooling, is not put under such resisting strain,by the metal of the cellar, as to crack the same. -Otherwise stated, the abnormally contractible edge of the cellar, and of the dust guard wall, will automatically contract with the contraction of the cooling cast top; This has another advantage, namely, that any union made between the metal of the top and the cellar in the preliminary cooling action, will not be disrupted or broken by the final cooling and contraction. This close and rigid connection between the cellar and top, is very important for several reasons, to-wit, it afiords a dust and oil proof joint, preventing dust from entering the box or oil leaking outtherefrom; it makes a strong box; and finally, it forms a joint between the cellar .and top which perunits no initial relative movement of the box elements. As a result of this last noted feature, even under long and severe service, the top will not be worked loose, under the constant vibration and, pounding action due to the service, whereas, in journal boxes havin sheet metal cellars and cast tops connected thereto by rivets, the pounding action will soon loosen the joints and render the boxes unfit for use.

Attention has already been called to the fact that, in the formation of the cellar by stamping the same up out of a single piece of sheet steel, it necessarily follows that the end wall 2 must have a gap 4 above the axle passage 3. By inspection of the drawings, it will be seen that the front wall of. the

cellar is low enough to afford the necessary opening for the box lid. From these several facts, the upper edges of the independently formed cellar are nowhere cross-connected until the top is cast thereon. The cross connection is made by the cast top; and the fact that the cast top bridges the gap 4 in the rear wall 2 of the box, and is connected to said Wall on the opposite sides of said gap, is a feature of large importance for securing the requisite strength to the box at this point. In service, the brasses and the wedges, especially the brasses, wear away to such an extent that there will be some end play or movement of the box relative to the journal, and, under these endwise motions of the axles or boxes, the hub of the wheel will strike the top of the end wall of the box with tremendous force, and it follows that this part of that wall must he of great strength, in order to stand up under the rough usage. It should also be noted that the cast top is cast with an opening 11 for the insertion of the dust guard, not shown.

The improved process for making the improved journal box herein disclosed is not herein claimed, but is made the subject matter of a companion application filed of even date herewith, Serial Number 795,512 and entitled Process of producing journalboxes.

What I claim is:

l. A ournal box comprising an independently formed metallic cellar having abnormally contractible upper edges and a top cast fast thereto, with said edges of said cellar abnormally contracted by the shrinkage of said cast metal.

9. A journal box having an independently formed metallic cellar and a cast top, said cellar having slits in its upper edge, and the said top being cast fast on the slit upper edge of said cellar and the said edge being abnormally contracted by the shrinkage of said top.

3. A journal box having an independently formed metallic cellar and a cast top, said cellar having slits in its upper edge and stoppers applied thereto, and the said top being cast fast on the upper edge of said cellar having the said slits and stoppers embedded therein, and the edge of said cellar being abnormally contracted by the shrinkage of said top.

4. A journal box comprising an independently formed metallic cellar, an independently formed dust guard wall, and a cast top, said cellar and dust guard wall'having slitupper edges and stoppers applied to the slits thereof, and the said top being cast fast onto the upper edges of said cellar and wall and having the said slits and stoppers embedded therein.

A journal box comprising an independently formed metallic cellar having a rear end wall that is formed with a gap at the top of the box, and a cast top cast fast to the upper edge of said box and bridging the gap in the rear end wall thereof.

(3. A journal box comprising an independ-. ently formed metallic cellar having a rear end wall that is formed with a gap at the top of the box, a cast top cast fast to the upper edge of said box and bridging the gap in the rear end wall thereof, and the said cast top having a dust guard opening formed therein.

7. A journal box comprising an independently formed metallic cellar having an end wall that is separated at the top of the box, and a top cast fast to the upper edge of said box and bridging the gap at the upper portion of the end wall thereof, the upper edge of said cellar having slits to compensate for shrinkage of the top, and stoppers applied to said slits and embedded in the said cast in testimony whereof I aflix my signature in presence of two witnesses.

IVAR A. RANDEL.

\Vitnesses:

DONALD D. MILLIKIN, C. W. RUDOLPH.

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