US375941A - Wagon-spring - Google Patents

Description

(No Model.)

B. G. LEE.

WAGON SPRING.

No. 375,941. Patented Jan. 3, 1888.

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IXRtme-ooeo tion.

UNITED STATES PATENT OFFICE.

EDWARD o; LEE, or BROOKLYN, PENNSYLVANIA.

WAGON-SPRlNG.

SPECIFICATION forming part of Letters Patent No. 375,941, dated January 3, 1888.

Application filed July 2, 1857. Serial No. 243,246. (No model.)

To all whom it may concern..-

Be it known that I, EDWARD G. LEE, a citizen of the United States, residing in Brooklyn, in the county of Susquehanna, in the State of Pennsylvania, have invented new and useful Improvements in Wagon-Springs, of which the following is a description.

The invention relates particularly to that class of two-horse wheeled vehicles which are popularly known as lumber-wagons or as farm-.wagons, but it is well adapted for application in other classes of wagons also.

The invention consists in certain novel parts or combinations of parts in connection with a bolster for a wagon, whereby the body or box of such wagon, together with its contents, is spring-supported by effective and durable means and at small cost.

In the drawings, Figure 1 is a top plan view of so much of a wagon-bolster and its connections as is necessary to illustrate my inven- Fig. 2 is a transverse vertical section on the line to w of Fig. 1. Fig. 3 is an end view showing a slightlyinoditied construction. Fig. 4 represents, on an enlarged scale, a longitudinal vertical section onthe line m :0 of Fig. 1. Fig. 5 is a transverse section representing a modification in the construction of the body-bars and in the friction-plate upon the same.

A is the bolster, and a is one of the two oppositely-placed standards or side stakes thereof.

B B are the body-bars or floorrests parallel with the bolster and above the plane of the same, as shown. The bars or rests have near each end a top recess, 1), and they are firmly connected and maintained in parallelism by the connecting-plate C, which is let into the bars, so that the upper surface of both and the heads of the securing-screws c c are in the samehorizontalplane. Thesupporting-braclc ets A upon the bolster A, oppositely placed, as seen, and secured by through-bolts a, have each a vertical perforation to receive the lower end of the spiral supporting-spring D, which is threaded to receive the securingnut d. The uppereudofthespring,similarlythreaded, passing through the friction-plate B, extends into the recess b in the body-bar, where it is engaged and secured by the nut d.

In some cases it may be desirable to connect the upper extremities of the brackets by a web or continuous bearing, as represented in Fig. 3, and it may also sometimes be advantageous to employ a bottom plate, A, as in the same figure. When this plate is employed, it will be received within a transverse recess in the bottom of the bolster, and it will be seen that if it be used in connection with a one-part or double bracket the bracket will be held against displacement longitudinally of the bolster, or otherwise, independently of the use of securing-bolts, it being understood thatthe springs will be formed, by preference, of half-inch rods, and that the nuts (1 and d will have a rigid'and firm bearing. The frictionplate B will be attached to the lower face of the body-bars by screws if the plate be made unflanged; but if the plate be formed, as seen in Fig.5, with an upward and inturned flange, I), to engage the longitudinal groove 1) in the side of the bar, it may be slipped over the end of the same. Under this latter construction the necessity for securing-screws is avoided, and the plate is held against longitudinal displacement by the straight-threaded extremity d ofthe spring D. The friction-plate will, as is obvious, effectually prevent abrasion of the bod y-rests, and being, by preference, composed of chilled castiron it will beboth durable andinexpensive. Itwillbeseenthatasthusconst-ructed the springs require no side supports, conplingrods, guides, flanges, cups, or other extraneous restricting devices of any kind, and that through the provision of the top recesses in the body-bars the upper holdingnut upon the top end of the spring is secured against rotation, and the surface of such bars is left unobstructed and presents a plain surface for the reception of the wagon-box.

Having described my invention, I claim- 1. A wagon-bolster which is provided with .vertically perforated brackets, body bars which are provided with vertical perforations and rectangular top recesses, securingnuts vwhich are adapted to fit the top recesses, and

spiral springs which by their upper ends engage the nuts in such top recesses, and which by their lower ends extend through the perforations in the brackets, and are secured by a nutwhich is applied directly to such lower end, substantially as shown and described.

2. A wagon-bolster which is provided with lateral brackets, an end perforated bottom plate which is received in a transverse recess in the body of the bolster and which is coin cident with the horizontal portions of the bracket, connected body-bars which are provided with bottom friction-plates, top recesses, and a securing-nut which is held against rotation by the walls of such recesses, and endthreaded spiral springs, each of which at the top engages the nut in the recess and byits lower extremity extends through both the bracket and the transverse bottom plate and is secured by a nut applied thereon, all in combination, substantially as described.

8. A wagon-bolster which is provided with lateral brackets, bod y-bars which are provided with bottom friction plates, which engage a recess or groove formed in each edge of such body-bars, and which are provided, also, with top recesses and with securing nuts fitted within such recesses, and spiral springs which engage the nuts within the top recesses and which extend through the lateral brackets and are engaged by a nut beneath the same, all in combination, substantially as set forth.

4. The combination, with the bolster A, having perforated brackets A, of the co11- neeted body-bars B B, having top recesses, as

described, and the springs D D, resting upon and secured to the brackets A and secured at top to the body-bars, the securing-nut resting in the recess 1) of such bars and being applied directly to the threaded end of the spring, substantially as and for the purposes specified.

5. The combination of the bolster A, having perforated side brackets, A, the bod y-bars having connecting-plate 0, top recesses, and bottom guard or frictiorrplate, 13 and the supporting-springs D, secured by nuts applied to the ends thereof, as described, both to the side brackets and to the recessed body-bars, substantially as shown and set forth.

EDXVARD G. LEE.

Vitnesses:

GEO. K. ASHLEY, W. A. TITswoRTH.

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