US841080A - Fence-post mold. - Google Patents

Description

Np- 841,080. PATBNTED JAN. 8, 1907.

J. BI ENGS-TROM. FENCE POST MOLD. APPLIOATIOH FILED MAR. 26, 1906.

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-ing-brackets 4, in which is .each end of the mold-box 5 are secured segnnrrnn STATES PATENT or rron.

JACOBB- ENGSTMHESTER, IOWA. I 7

FENCE-POST MOLD.

No. 841,080; Specification of Letters Patent. Patented Jan. 8, 1907;

Application filed March 26, 1906. Serial No. 308,022.

Be it known that I, JACOB B. ENesTRoM, a citizen of the United States, residing at Manchester, in the county of Delaware and State of Iowa, have invented certain new and useful Improvements in Fence-Post Molds,- and I do 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 same.

This invention relates to molds for forming fence-posts of plastic material.

The object of the invention is to improve the construction of mold shown and debrackets 4, said scribed in United States Letters Patent their inner ends operating devices or handles numbered 784,667, granted to me March 14, 12, by means of which the bolts may be re- 1905. tracted from the With the above and other objects in view plates 6. the invention consists of certain novel fea- Slidably mounted between the upper ends of the standards 2 is a pressing block or tures of construction, combination, and ar rangement of parts, as will be hereinafter deplunger, said plunger comprising a longitudinally-disposed bar having on each end verscribed and claimed.

In the accompanying drawings, Figure 1 is tically-disposed upwardly-projecting arms 14, on the outer sides of a side view of the mold with the pressing deapertured guide-lugs 15, adapted to slidably vice and plunger in raised position. Fig. 2 is an enlarged detail longitudinal sectional engage guide-rods 16, arranged on the inner sides of the standards 2 and connected at view through one end of the mold, showing their lower ends to the plates 6 and prothe plunger in a lowered position. Fig. 3 is a cross-sectional view through the mold, jecting at their upper ends through apertured showing the parts in position for pressing and ears or lugs secured to the end standards 2 of the frame, as shown. The upper ends of the molding a post. Fig. 4 is a similar view showing the plunger in elevated position and uide-rods 16 have formed thereon crankandles 17, by means of which said rods may the mold-box tipped slightly to one side to facilitate the filling thereof, and Fig. 5 is a be turned. Formed on. or secured to the rods 16 in a suitable position is a detent-pin similar viewshowin the mold tipped in the opposite direction or removal of the fin- 18, which is adapted to be engaged with the plunger 13 to hold the same in a raised or ished post.

Referring more particularly to the drawinoperatlve position. The detent 18 is enby turning said ings, 1 denotes a supporting-frame comprisa one-fourth revolution, said ing uprights or standards 2 arranged at each end thereof, and a longitudinally-disposed rods being turned by the cranked upper ends connecting-bar 3, which is secured at its opthereof, as hereinbefore described. posite ends to said standards, as shown. On one side of the arm 14 of the plunger Pivotally mounted on the connecting-bar 3 are arranged toothed racks 19, adapted to is a series of substantially V-shaped supportsecured a moldbox 5, said box being substantially V- shaped in cross-section and preferably tapering longitudinally, as shown.

On the standards or uprights 2 adjacent to To all whom, it may concern:

ends to releasing-rods 10, which extend through suitable guides in the supportingg1tud1nallydisposed shaft 21, which is journaled in bearings 22 on the adjacent side of the standards 2, as shown. The shaft 21 is provided on one end with a crank-handle 23, whereby the same may be turned in one direction or the other to engage the pinions 20 with the racks 19, thereby raising and lowering the plunger 13 on the guide-rods 16.

If desired, the under side or press1ng-sur face of the plunger 13 may be provided with mental end plates 6, over which the open ends of the mold-box are adapted to slide when said box is rocked or tilted in one directi on or the other in the process of forming be engaged by pinions 20, mounted on a lon-v Secured to. one side of the mold- The latchbolts 7 are connected at their inner 7 which are secured 7 40 a compact artificial-stone post. After the 2 p g senoao a series of downwardly-pro ecting pins or Having thus described my invention, what rods 24, which when the plunger is lowered I claim as new, and desire to secure by Letare adapted to be forced'through the plastic l ters l?atent, ismaterial in the mold-box and to engage ap 1. In a mold of the character described,- 5 ertures 25, formed in the bottom or apex o the combination with a supporting-frame 7 the mold-box. By means of the rods or pins having rigid supporting-standards connected 24 a series of holes will be formed through by a longitudinally-disposed supporting-bar, the post to receive the line-wires. of the fence of amold-boxpivotally connected to said bar, when the posts are set up for use. If delatch-bolts arranged on said mold-box to 10 sired, a suitable pallet-board-26 may be prohold the same in an operative and a tilted 75 vided for use in connection with the mold position, a plunger slidably mounted bebox and is adapted to lie in engagement with tween said standards, vertically-disposed the inner wall of one side of the box, so that guide-rods arranged on the latter, apertured when the latter is tipped downwardly to the guide-lugs secured to said plunger and to position shown in Fig. 5 said board, together slidably engage said guide-rods when said 80 with the finished post, may be readily replunger is raised or lowered, means whereby moved from the mold-box and a new palletsaid plunger is operated, and means to supboard'arranged therein for the formation of port the same in an elevated position, subanother post. stantially as described. In filling the mold the box 5 is tilted 2. In a mold-box of the character de- 5 scribed, the combination with a supportingslightly to one side and from beneath the elevated'plunger, said box being held in tilted frame having rigid end supporting-standards connected by a longitudinally-disposed supposition by means of the engagement of the latch-bolts 7 with the apertures 9 in the end porting-bar, of supporting-brackets hingedly connected to said bar, a mold-box arranged 9 2 5 plates 6. After the box has been filled with in said brackets, end plates secured to sa1 plastic material the same is swung back to a vertical position beneath the plunger, in standards at each end of said mold-box,

which position said box is held by the enspring-projected latch-bolts arranged on one side of said box to engage keeper holes or ap gagementof the latch-bolts 7 with the apertures 8 in said end plates 6, ashereinbefore ertures formed in said plates, whereby sa1d 95 box is held in an operative position and in a tilted position for filling, a plunger arranged above said mold-box, vertically-disposed uide-rods secured to said standards, means to slidably engage said plunger with said I uide-rods, means to raise and lower the plunger, and means to hold the same in an elevated position, substantially as described.

3. In a mold-box of the character de scribed, the combination with a supportingl0 5 frame having rigid end supporting-standards connected by a longitudinally-disposed supporting-bar, of supporting-brackets hingedly connected to said bar, a mold-box arrange "position with the plastic material therein, the'detent-pins 18 on the guide-rods 16 are disengaged from the plunger and the latter is lowered by means of the rack-and-pinion operating mechanism connected therewith to engage the lower surface of the rod with the plastic material in the mold and to firmly press said material together, thereby forming post has been thus pressed in the mold-box the plunger is raised by the engagement of the pinions 20 on the shaft 21 with the racks 19 on said plunger, and the latter is held in a raised position by the detent-pins on the in said brackets, end plates secured to sa1d I1 uide-rod 16, as hereinbefore described, standards at each end of said mold-box, The latch-bolts'7 are now disengaged from spring-projected latch-bolts arranged on' one the apertures 8 in the end plates, and said side of said box to engage keeper holes or ap mold is tilted in a direction opposite to that ertures formed in said plates, whereby said in which it was tilted for filling until the supbox is held in an operative position and in a I I5 porting-brackets 4 engage the connectingtilted position for filling, a plunger arranged bar 3, in which position the pallet-board above said mold-box, vertically-disposed with the molded post is readily removed guide-rods secured to said standards, means from the mold-box. to slidably engage said plunger with said From the foregoing description, taken in guide-rods, detents arranged on said guide- 12 connection with the accompanying drawings, rods to hold said plunger in an elevated posithe construction and operation of the invention, crank-handles formed on the upper ends tion will be readily understood without reof said rods,wl1ereby the same may be turned quiring amore extended explanation. to engage said detents with and disengage 6o Various changes in the form, proportion, the same from said plunger, and means to I25 and the minor details of construction may be raise and lower the plunger, substantially as resorted to without departing from the prindescribed. ciple or sacrificing any of the advantages of 4. In a mold-box of the character dethis invention as defined by the appended scribed, the combination with a supportingclaims. frame having rigid end supporting-standards connected by a longitudinally-disposed supporting-bar, of supporting-brackets hingedly connected to said bar, a mold-box arranged in said brackets, end plates secured to said standards at each end of said mold-box, spring-projected latch-bolts arranged on one side of said boX to engage keeper holes or apsaid plates, whereby said rods, a detent formed on said rods, crankhandles formed on ter to turn the detent with and disengage the same from said plunger, whereby the latter is held in an elevated position, rack-bars secured to one side of said plunger adjacent to the opposite end thereof, a longitudinally disposed operating shaft journaled in bearings on said standards, and

racks, thereby providing means for raising and lowering the plunger, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JACOB B. EN GSTROM. Witnesses:

M. E. BLAIR, F. O: HALL.

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