US930745A

US930745A - Concrete-post machine.

Info

Publication number: US930745A
Application number: US43493108A
Authority: US
Inventors: Hezekiah Durr
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-05-25
Filing date: 1908-05-25
Publication date: 1909-08-10
Anticipated expiration: 1926-08-10

Description

H DURR. CONCRETE POST MACHINE. APPLIGATION FILED MAY Z5, 1908.

Patented Aug. 10, 1909.

HEZEKIAH DURR, OF CRITTENDEN, KENTUCKY.

CONCRETE-POST IACHINE.

` Specification of Letters Patent.

Patented Aug. 10, 1909.

Application filed May 25, V1908. Serial No. 434,931.

To all'whom t may concern:

Be 1t known that l, HEZEKIAH Dunn, a

l citizen of the United States, residing at Crit- This invention relates to machines for`r making artificial stone fence'posts and has for its object to provide a molding machine in'which the tamping of the concrete is effected by intermittently jarring the mold-l thereby to thoroughly pack` the concrete and thus produce a post of uniform density.

A further object of the invention is to provide a moldingmachine including a frame having a mold supporting leverl pivotally mounted thereon and disposed in the path of movement of a revolving cam, there being an anvil arranged beneath the mold and adapted to receive the impact of the mold as the same is raised and lowered by the action of the cam. f

A still further object of the invention is generally to improve this classV of machines so as to increase their utility, durability and eliiciency.

Further objects and advantages will ap-v pear in the following description, it being understood that various" changes inform, proportions andv minor details of construction may be resorted to within the scope of the appended claims.

part of this specification: Figure 1 is a side elevation of a molding machine constructed in accordance with my invention. Fig. 2 is Fig.v 3 is a` transverse sectional view Itaken on the lmea top plan view of the same.

Similar numerals of `reference indicate corresponding parts 1n all of the figures ofI the drawings. i i

The improved machine forming the sub ject matter of the present invention includes a supporting frame comprising spaced longitudinal sills 5 connected by transverse end bars 6 to one of which is'bolted or otherwise rigidly secured a post or standard 7. The

upper end of the post or standard 7 is bifurcated for the reception of the adjacent end of an actuating lever 8, said lever being pivotally mounted within the bifurcated portion of the standard 7, as indicated at 9.

Secured to the longitudinal sills 5 of the supporting frame at one end of the latter are spaced brackets 10 in which is jcurnaled a transverse shaft 11 carrying a fly wheel 12 and having one end thereof extended to form a terminal crank 13 by means of which the shaft may be rotated.

Secured to and mounted for rotation with the shaft 11 is a cam 14 adapted to engage the deflected end 15 of the lever 8 and intermittently lift the same. rlhe intermediate portion of the lever 8 is bent laterally to produce a depression or socket 16 for the reception of one section 17 of the mold, the mating Vsection 18 being pivotally connected to the section 17, as indicated at 19. The fixed section 17 is provided with a terminal wear plate 20, which latter forms a closure for the lower end of the mold and also serves to receive the impact of the mold when the latter drops by gravity on the anvil 21.

Disposed on opposite sides of the mold `and secured in any `suitable manner to the longitudinal sills 5 are uprights 22 connected at their upper ends by integral transverse bars 23 and having their Xed ends provided with laterally extending perfoy rated flanges 24 adapted to receive bolts or In the accompanying drawings forming a similar fastening devices 25 by means of `which the uprights 22 are secured in position on the longitudinal sills.

`Secured to the transverse bars 23 is a skeleton frame 24 which supports a hopper 25, the latter being provided with a reduced funnel shaped mouth 26 Athrough which the cement, concrete or other `plastic material .is fedffrom the hopper into the mold. A

handleg27 is secured to the movable section rv18 of the mold so that the mold may be con- ,venientlyv opened to permit the discharge of .the molded product, said handle being` 4locked in closed position by a hook or simi`- ried to the 'drying racks until sufliciently hard for use.

In operation, a quantity of cement, connoA crete or other plastic material is shoveled or otherwise introduced into the hopper 25 and allowed to gradually enter the mold. The shaft 11 is then rotated by turning the crank 13 which causes the cam 11- to bear against the inclined face 30 ot' the mold carrying lever to lift the same. As thefcam passes from beneath the tree end of the lever 28, the latter will drop by gravity on the anvil 21 and thus jar the contents ot the mold so as to thoroughly compress the concrete and produce a post of unitorm density. Attention is here called to the .tactthat the upper tace et the anvil 21 is inclined downwardly toward the front of the machine, as indicated at 31, so that the impact plate er closure 2O will bear against the entire upper surface of the anvil and thus prevent uneven wear on the block or closure 2O when the machine is in operation. In order to remove the post the catch 28 is released and the handle 27 swung laterally to open the movable section 18 thus permitting the molded fence post, incased in the metallic jacket 19, to be readily carried to the drying racks until sutliciently hard for use. ritter the cement has thoroughly set the sleeve or jacket 29 may be removed from the post and again placed in position within the mold.

It desired the inner shell 29 may be formed with a plurality of transversely alined openings adapted to receive suitable rods or pins 30 thereby to form the post with slots or openings for the reception oi the longitudinal wires in a line ot' fencing, as best shown in Fig. 5 of the drawings.

Vhile the machine is shown and described with a hand crank for manually operating the same it is obvious that the shaft 1l may be provided with a belt pulley leading to an engine or other suitable source of supply for operating the machine. It will also be understood that the machine may be employed for making pipes, building blocks, hitching posts and the like by simply changing the configuration oit the mold.

Having thus described the invention what is claimed is:

l. A molding machine including a supporting trame, a lever pivotally mounted on the frame, a mold secured to and carried by the lever, a shell disposed within the mold,l

and provided with transverse socket forming pins a hopper for feeding material to the mold, and means engaging the free end of the lever for actuating the latter to intermittently jar the contents of the mold.

2. A molding machine including a supporting frame, a lever pivotally mounted on the frame and having its intermediate portion ott' set, a sectional mold carried by the lever and having one section thereolf secured to the lever at `the ell set portion thereof, a shell disposed within the mold, uprights extending vertically from the supporting trame, a hopper supported by the uprights for feeding material to the mold, an anvil arranged beneath the mold and having its upper `tace inclined, an impact member carried by one oli the mold sections and adapted to engage the inclined face oit the anvil, brackets secured to the supporting trame, a shatt jonrnalcd in the brackets, and a cam carried by the shaft and adapted to intermittently litt the free end o't the lever.

3. A molding machine including a snpporting trame, a lever having one end thereot pivotally mounted on the trame and its intermediate portion oil' set to produce a seating recess, a mold secured to the lever at said recess and provided with an impact block forming a closure for one end of the mold, mians tor actuating the lever to intermittently jar the contents ot the mold, and an anvil disposed beneath the mold and arranged in the path of movement of the impact block, said anvil and impact block having their adjacent faces inclined in opposite directions.

41. A molding' machine including a snpportin trame, a lever having one end thereof pivotally mounted on the Jirame and its intermediate portion ott set to produce a seating recess, a mold seated in said recess, a. hopper secured to the iframe and 'provided with a discharge spout extending within the mold, and means tor actuating the lever to intermittently jar the contents of the mold.

ik molding machine including a snpporting trame, a bracket seeanfed to one end of the trame, a shatt jonrnaled in said brackets and provided with a cam, a lever pivotally mounted on the opposite end oit the frame and having its tree end provided with an inclined faces arranged in the path of and adapted to engage the cam, a mold secured to the intermediate portion oit the lever, a vertical frame secured to the supporting frame, a hopper secured 'to the vertical trame and provided with a discharge spout extending within the mold for feeding material to the upper end ot the mold. and an anvil disposed beneath the lower end of .said mold.

In testimony that I claim the foregoing as my own, l have hereto alhXed my signature in the presence ot two witnesses.

lfllC/Slllnll Dllllt. lVit-nesses HAnimN BniNNoN, Hanni* C. iViaNnrnn.