US1692570A - Journal box - Google Patents

Description

Nov. 20, 1928.

F. o. REEMER JOURNAL BOX Filed Aug. 5, 1925 INVENTOR Header-1c O. Heemer' "may Patented Nov. 20, 1928.

PATENT; OFFICE.

FREDERIC o. REE-MEIR, or CHICAGO, ILLINOIS.

JOURNAL BOX.

Application filedlAug'ust a, 1925. Serial No. 47,863.

Reference is had to the accompanying drawing, which illustrates the preferred fo'rin of the invention, though it is to be understood that the invention is not limited to the exact details of constructionshown and described as it gis obvious that various modifications thereof within the scope ofthe claims will-occur to personsskilled in the art.

The invention relates to journal boxes-and particularly to the lid spring mechanism thereof. Y

Heretofore, theflat springs in common use on the inside of journal box lids were secured to the lid and extended upwardly to engage the cam lugs on the box. The spring so positioned was short and relatively thick because of the structural peculiarities of lid and box'and the necessity fora spring of suflicient strength to hold the lid firmlyin both open and closed "positions. With a spring of the required strength and thick ness thus restricted in length and subjected to repeated and excessive bending during the j opening and closing movements of the lid,

the spring was stressed beyond its elastic limit whereupon a perinanentset ensued, depriving the spring of the resiliency so necessary-to the proper functioning of the lid.

It is therefore the principal object of this invention to provide a spring of such form that when mounted upon the lid the spring will operate to hold the lid firmly in its seated or closed position on the box and in its raised or open position.

A further object is to so shape the spring that portions thereof below its point of fastening to the lid will operate to increase the effective length of the spring and thereby its resiliency.

Another object is to provide a fiat spring of such form that portions thereof above the point of fastening to the lid will be mutually reinforced, the frictional contact therebetween operating to dampen the movements thereof.

In said drawing:

Fig. 1 is a front view of a journal box with the lid closed, the lid being fitted with a spring made in accordance with the invention;

Fig. 2 is a vertical section on line 2-2 of Fig. 1 looking in the direction indicated by the arrows and showing the applicat on of a preferred embodiment of the invention;

Fig. 3 is a view similar to Fig. 2 but showing the lid raised;

Fig. 4 is a view similar to Fig.2 showin a modified form of the inventiongand F ig. 5 shows the modified forniof the spring in side elevation and full lines and the preferred embodiment is indicated by the dotted-line extension thereofJ In the drawing, represents the journal box supported on the axle journal 11 through the medium of journal brass 12 and wedge 13 in'ac'cordance with established practice; and 14 indicates the lid having pivotal support on lid pin 15 in cam lugs 16 of the journal-box 10. I a

The lid is provided with the usual spring pocket 17 within which the spring is lodged. The spring 18 may be held from displacement within the pocket inany approved manner. "For the purpose of illustrationl have shown the spring secured to the lid by rivets 19 but there is no objection to removably securing the spring by removablefmeans or otherwise if that method of fastening should bep'referred. g r Y s The spring 18 is bent at its base to provide a loop portion 20 and secured to lid 14 of the box at a point substantially abovethe lower extremity of the loop as indicated at 19,

both arms'of the loop extendingupwardly to form respectively the cam lug'engaging spring 21 and the "supplemental spring portion 22 to engage and reinforce the relatively long cam spring 21 for a purpose hereinafter referred to. The cam lug engaging arm 21 of the spring is formed at its upper extremity with a rounded face projection 23 adapted to nest in complementary depressions 24: and 25 on the under and upper sides respectively of the cam lugs 16 on the journal box to prevent vibration or chattering of the lid in its closed position upon the box and to definitely fix the open position of the lid.

The spring 18, when secured to the lid. is in its free expanded condition as indicated in Fig. 5 and in dotted lines in Fig. 2, but when the lid with attached spring is mounted on pivot pin 15 on the box the spring projection 23 will engage depressions 24L or 25 and the spring arms 21 and 22 will beinitially stressed as they assume the operative position indicated in full lines in Figs. 2 and 3.

During the progress ofthe lid from the closed position in Fig. 1 to open position in Fig. 3, the spring projection 23 will leave lug depression 24 and ride over the apex 26 of said lugs and finally enter depression 25 on the upper side of the lug in which positionof the spring the lid spring will be firmly but yieldably held to its seat as will be obvious. During such movement the spring 18 will be subjected to maximum compression as projection 23 reaches apex 26 of the lug 16, and the cam engaging portion 21,0f the spring will move toward the lid under stress of this movement, such movement being opposed by the auxiliary spring portion 22 at alltimesin frictional engagement withsaid cam enga ing portion 21.

It will e noted that the auxiliary spring portion 22 operates at all times to dampen the movements of spring portion 21 by virtue of the frictional contact between them so that projection 23 on the spring will engage the box lug 16 with a pressure suflicient to insure positive bearing contact between them. It should also be noted that by securing the spring to the lid at a point above the base of the spring the efliective length of the spring is materially increased; that the increase in the efiective length of the spring permits the use of a spring of greater strength and ample flexibility within the elastic limit of the spring material. 7

A spring of the character outlined may be applied to malleable or pressed steel lids with equal facility and advantage. It ma be desirable at times to use a spring of lig iter capacity with the pressed steel lid in which event the auxiliar spring portion 22 of the spring shown in otted lines in Fig. 5, may be dispensed with. i

What I claim is: a

1. The combination with a journal box rovided with a lid spring cam lug, of a lid hinged to the box at said lug, an upwardly extending spring secured to said lid, and a provided withia lid spring cam lug, of a lid hinged to said box, and a spring secured to said lid at a point above the base of the spring and comprising upwardly extending arm portions connected at their basal extremities, one of said arm portions extending downwardly and outwardly thence upwardly for engagement with its companion arm portion and said cam lu i 4. As an article 0% manufacture, the combination of a journal box lid adapted to be hinged to a journal box, a spring bent to form a loop with arms of unequal length, and means for securingthe shorter arm to the lid adjacent to the bend of the loop, the; longer arm extending upwardly in spaced relation to the lid and having a lug engaging surface adjacent to its free end. and the shorter arm extending upwardly between the lid and the longer arm and adapted to bear at its free end against the intermediate portion of the longer arm.

y In witness whereof I have hereto set my hand this 29th day of July, 1925/ FREDERIC onnEMER'.

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