US23067A - Brick-mold - Google Patents

Description

UNITED STATES TFT FFH?.`

JOEL SXV. ANDREWS, OF NORRISTOVN, PENNSYLVANIA.

BRICK-MOLD.

Specification of` Letters Patent No. 23,067, dated March 1, 1859;

To all 'whom fitumay concern:

Be it known that I, Jenn WV. ANDREWS, of Norristown, Montgomery county, in the State of Pennsylvania', have invented certain new and useful Improvements in Brick-Molds; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings and to the letters of reference marked thereon.

My invention relates to improvements in that kind of brick molds in which movable bottoms are used for pushing or delivering the bricks upon the drying floor, when formed, from the molds, and in which two or more molds are combined in the same frame, and consists essentially of pivoted handles, connected by links or otherwise, to longitudinal bars to which the bottoms of the molds are secured in such a manner that when the molds are inverted the weight of the bottoms of the molds assists the pivoted handles, &c., in ejecting the bricks Vfrom their respective molds without much effort on the part of the operator,

Referring to the drawings which form part of this specification, Figure 1. represents an outside view of the bottoms of the molds, Fig. 2. a longitudinal sectional view of Fig. l, through the line R, S, Fig. 3, a top view, and Fig. 4. a transverse section of Fig. 3, through the line T, V.

The same letters of reference, refer to like parts on all the drawings.

A, A, represent the sides of the molds eX- tei'iding beyond the. end pieces B, B, to support the aXis pins or screws CZ, (Z, el, cl, of the handles D, D, and projecting below the bottoms C, C, &c., a distance equal to the thickness of the bars F, F.

The division pieces B, B, &c. as well as those at the B B are let in the sides A, A, and are permanently secured to them.

The bottoms C C &c., are made somewhat smaller in size than the molds in order to move freely within them and are permanently secured to the bars F, F. The ends of these bars project beyond the ends of the molds and are perforated to receive the connecting links H, H, H, H, which latter are jointed to the inner edge of the handles by the staples or eyes z' i z' In order to allow the bottoms to pass into the molds, all the cross pieces B are notched to the depth of 0, 0, as those in Fig. et. Into these notches the bars F F, pass and play freely up and down therein. Thesedepressions j, j, 1n the handles D, D, make the holding of the latter secure'and easy for the hands when the molds are inverted and the handles turn.

The corner stop pieces K, K, K,I K, serve to prevent the bott-oms from passing quite out of the molds as well as to adjust them to form the proper depth of molds in common with the stay pieces E, E, and the bars F, F, when the molds are in the press to receive the clay, rest upon the bed, and form the support for the bottoms C, C.

On inspection of Fig. 2, it will be seen that when the molds are in a position to receive clay and pressure, the bottoms have receded from the top a sufleie-nt distance to determine the proper thickness for the bricks, at the same time, the bars F, F, are even with'the bottom edge of the sides A, A, and both rest upon the bed; the whole formlng a complete arrangement, occupying but little more room vertically, than the ordinary form of molds in which movable bottoms are not used.

Further inspection of Fig. 2, will exhibit the manner in which the lever handles operates to eject the bricks from vtheir molds when the latter are inverted.

Suppose the molds containing the bricks inverted and resting with the depressions j j upon the linger ends of the operator, the handles D D being free to rotate on the screws Z d &c., then by raising the molds up the handles as they rotate, operate upon the rods F F and force their movable bottoms a suflicient distance through their respective molds to eject the bricks.

lVhen the molds are freed from their bricks and turned back to their original po sition, it will be seen that the gravity of the movable bottoms will right all the working parts without any eort on the part of the operator. This is a very important matter in brick making, the loss of even a moment or the expenditure of the slightest effort at every obearing of the molds would amount in the aggregate to a large percentage of the time employed.

Brick molds are usually made larger at top than at the bottom and very coarse sand is used upon them to facilitate the removal of the bricks from them upon the drying floor, and in places where coarse sand cannot be obtained and it becomes necessary to use fine sand upon the molds a great difficulty is experienced in ejectin` the bricks from their molds, thereby spoiling thc shape oit the bricks, consequently a vast number of them have to be returned to the clay pit for remolding.

My improvement enables me to make my brick molds the same size at bottom, and top, so as to make a perfectly square brick, also to use a liner sand upon the molds to free them, which gives the bricks a much smoother surface than in the old methods Where the molds With permanent bot-toms and use of my improvement, I Will now say 15 The arrangement of the pivoted handles 20A D D links H H and bars F F connected to movable bottoms C C all substantially in the manner and for the purpose set forth.

JOEL W. ANDRFVS.

IVitnesses:

B. F. VAN COURT, L. E. CoRsoN.

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