US908372A - Lumber-truck. - Google Patents

Description

M. ACKERMAN. LUMBBR TRUGK.l APPLICATION FILED JULY 11, 1 908.

908,372. Patented Dec.2`9, 1908. Y I 2 sHnnTs-SHBET 1.

Eig' Z nl: NaRRJs PersRs ca.. WASHINGTON. D. c4

M. AGKERMAN. LUMBEB TBUUK. APPLIoATIoN FILED JULY 11,1908.`

Patented D60. 29, 1908.

s sums-saura.

will' Zei l! Unire, srnrns Arrivi onirica.

MEINERT ACKERMAN, OF ALBANY, OREGON, ASSIGNOR OF ONE-HALF TO ALBANY LUMBER COMPANY, A CORPORATION OF OREGON.

LUMBER-TRUCK.

Specification of Letters Patent.

Patented Dec. 29, 1908.

Application :tiled July 11, 1908. Serial No. MSJOO.

To all whom it may concern:

Re it kno wn that I, Mnnvsnr AGKERMAN, a citizen of the United States, residing at Albany, in the county of Linn and State of Oregon, have invented certain new and useful improvements in Lumber Trucks, of which the following is a speciiication, reference being had to the accompanying drawings.

"this invention relates to improvements in two wheel trucks used in lumber yards and similar localities for transporting lumber and the like, and it relates more particularly to adjustable legs for supporting the body or frame ol' the truck in a horizontal position and preventing it from tilting while being loaded and unloaded.

The object of the invention is to provide a lumber truck or cart of this character with improved supporting legs which may be readily elevated to an out-oi-the-way position to permit the device to be conveniently moved about and which may be quickly and easily lowered to an operative position or into engagement with the ground or iloor so as to prevent tilting of the body of the truck.

Another object ot' the invention is to provide a lumber truck or cart having centrally arranged bearing or supporting wheels, with supporting legs at both oil its ends and means for raising and lowering such legs simultaneously.

'With the above and other objects in view, the invention consists of the novel features of construction and the combination and arrangement oil parts hereinafter Afully described and claimed, and illustrated in the accompanying drawings, in which-.-

Figure 1 is a side elevation of the improved lumber truck shovng the legs in their lowered or operative position; Fig. 2 is a vertical longitudinal section showing the legs raised or retracted; Fig. 3 is a top plan view; Fig. 4 is a detail vertical transverse section; Fig. 5 is a perspective view of the locking rack; and Fig. 6 is a detail horizontal section taken on the plane indicated by the line 66 in Fig. 4.

In the drawings 1 denotes the body or frame of the truck which may be of any suitable iorm and construction, but which, as illustrated, is rectangular in shape and composed oi' longitudinal side bars 2 united by end cross bars 3.

5 denotes the supporting or bearing wheels 6 arranged upon a centrally disposed transverse shaft 7.

8, 9 denote legs or equivalent supporting devices which are arranged at or adjacent to the ends of the body and are mounted tor vertical sliding movement. Said legs are arranged in bearings 10, 11 in the form of brackets which are secured by bolts or similar astenings 12 to the cross bars 3. The bearing brackets 10, 11 are also formed with bearings 12a for the ends olfa longitudinal shaft 13 on which are secured pinions 14. to mesh with racks 15 carried by the legs 8, 9. rlhe leg 9 is provided with an additional rack 16 which is engaged by a gear segment 17 and fixed to a transverse shaft 1S journaled in a bearing bracket 2O carried by the bearing bracket 11 and also in a bearing 21 secured to one of the side bars 2 of the body. rihe outer end of the transverse shaft 18 is provided with a crank 22 which has an angular handle 23 carrying a pivotally mounted, spring pressed hand pawl 24 to engage a locking rack 25. rIhe latter is in the iorm of a short toothed segment suitably secured to the body 1 While the pawl or dog 24 is of right angular form and is pivoted at its angle and adjacent to the angular portion of the handle 28, as indicated at 26. One end 27 of said angular pawl is adapted to engage the locking rack or segment 25 and its other end 28 forms a handle and is actuated outwardly or away -from the hand grip portion of the handle 23 by means of an interposed spring 29.

. it will be seen that when the hand piece 28 of the pawl is pressed against the grip of the handle 23 the end 27 of said pawl will be retracted or swung out of engagement with the locking rack 25 so that the transverse crank shaft 1S may be rocked to cause the segment 17 to raise or lower the leg 9 and through the instrumentality of the rack and pinion gearing the other leg 8 also. When the pawl is engaged with the locking rack the parts will be effectively locked against movement and the legs 8, 9 will be retained in their adjusted positions.

From the foregoing it Will be seen that the invention is exceedingly simple in construction and will therefore be strong and durable and may be produced at a small cost and readily applied to either old or new trucks. Furthermore, it is easy to operate and eX- ceedingly convenient since both legs or supporting devices may be simultaneously raised and lowered and eiectively retained in adjusted positionsl While the preferred embodiment of theY invention is shown and described in detail, it

will be understood that the invention` is not limited to the specic construction set forth-- and that various changes in the form, proportion and minor details may be resorted to without departing from the sfpirit or sacrificing any of the advantages o the invention. Having thus described the invention what is claimed is:

l. A truck comprising supporting wheels, a tilting body carried thereb a slidably mounted supporting leg, a racr carried by said leg, a shaft, a pinion on said shaft in mesh with said rack and means for operating said shaft.

2. A truck comprising supporting wheels, a tilting body carried thereby, a slidably mounted supporting leg, a rack carried by said leg, a gear segment in mesh with said rack, and means for operating said segment.

3. A truck comprising sup orting wheels, a tilting body carried there y, a slidably mounted supporting leg, a rack carried by said leg, a gear segment in mesh with said rack, a crank shaft for actuating said segment, a locking rack, and a pawl carried by the crank of said shaft for engagement with said locking rack.

4. A truck comprising a tilting body, supporting wheels arranged intermediate the ends of the latter, movable supporting legs adjacent to the op osite ends of the body and means for simu taneously actuating said legs.

5. A truck comprising a tilting body, supporting wheels arranged intermediate the ends of the latter, slidably mounted supporting legs adjacent to the opposite ends of the body and means for simultaneously actuating said legs.

6. A truck comprising a tilting body, supporting wheels arranged intermediate the ends of the latter, slidably mounted supporting legs adjacent to the opposite ends of the body, racks carried. by said legs, a shaft, pinracks,

pions upon said shaft in meshv with said of said legs for andmeans engaged with one raisin and lowering the same.

' 7. truck comprising a tilting body, supporting Wheels arranged intermediate the ends of the latter, slidably mounted supporting Ylegs adjacent to the opposite ends of the body, racks carried by said legs, a shaft, pinions upon said shaft in mesh with said racks, a second rack carried by one of said legs and a gear segment in mesh With said second rack.

8. A truck comprising a tilting body, supporting Wheels arranged intermediate the ends of the latter, slidably mounted supportmg legs adjacent to the opposite ends of the body, racks carried by said legs, a shaft, pinions upon said shaft in mesh with said racks, a second rack carried by one of said legs, a gear segment in mesh with said second rack, a'crank shaft for operating said gear segment and means for locking said crank shaft in an adjusted position.

9. A truck comprising a tilting body, supporting wheels arranged intermediate the ends of the latter, bearing brackets adjacent to the ends of said body, su porting legs slidable in said brackets, a racli and pinion connection between said legs to cause them to move simultaneously and a rack and gear mechanism for actuating one of said legs.

10. A truck comprising a tilting body, supporting wheels arranged intermediate the ends of the same, a longitudinal shaft, pinions adj acent to the ends of said shaft, slidable supporting legs, racks upon said legs in mesh with said pinions, brackets arranged adjacent to the ends of the body and each having a bearing for one end of the shaft and a bearing for one of said legs, and means for raising and lowering one of said legs.

ln testimony whereof I hereunto aiiX my signature in the presence of two witnesses.

MEIN ERT ACKERMAN.

Witnesses E. C. BRANDEBERRY, M. D. BRANDEBERRY.

Images