Concrete-Block Machine Page: 5 of 5
[3], # 2 : ill. ; 23 cm.View a full description of this patent.
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1,086,994
as shown. The upper end of the rod 27 is
connected to an eccentric strap 29 which is
engaged with an eccentric 30 fixed on an
operating shaft 31 journalecl in suitable
r" bearings on cross bars 32 connecting the up-
per portions of the side bars 1 of the frame.
On one end of the shaft 31 is fixedly secured
a crank arm 33 which is connected by a pit-
man rod 34 with a hand lever 35 one end of
10 which is pivotally secured to one of the side
bars 1 whereby when the plunger rod 27 is
in operative position with the head 28 there-
on in engagement with the material, in the
mold, said ]ever is depressed, thus forcing
15 the plunger head down into the mold and
firmly packing the contents thereof. After
the contents of the mold has thus been
packed and while the plunger head is still
held down by the plunger rod and its op-
20 crating mechanism, the mold lifting mecha-
nism is operated by the lever 22 and the
mold thus pushed up from the pallet and
from around the molded block which is held
down on the pallet by the plunger head.
25 After the mold has thus been raised or lifted
from the block, the plunger operating lever
35 is released thus relieving the pressure of
the plunger head on the molded block where-
upon the pallet and molded block may be
so removed from the machine. After the block
is removed another pallet is placed in posi-
tion on the supporting platform and the
mold permitted to descend thereon. After
the mold is thus lowered the plunger 27 will
S5 be swung out of the way and to the position
shown in Fig. 1 of the drawing, where it is
held by means of a counter balancing weight
36 which is secured by an arm 37 to the ec-
centric band 29.
40 The pallets 10 may have arranged thereon
any configuration for forming an impres-
sion in the end of the block, said pallets be-
ing here shown as having thereon tongues
or ribs 38 which form in the lower ends of
45 the block, grooves or recesses to receive
cement or other plastic material employed
il setting or laying the blocks.
While the machine is herein shown and
described as being particularly designed for
50 molding segmental blocks, it is obvious that
molds of any desired form may be employed
for molding blocks of the desired shape.
From the foregoing description taken in
connection with the accompanying draw-
55 ings, the construction and operation of the
invention will be readily understood with-
out requiring a more extended explanation.
Various changes in the form, proportionand the minor details of construction may
be resorted to without departing from the 60
principle or sacrificing any of the advan-
tages of the invention as claimed.
Having thus described my invention, what
I claim is:
1. In a block molding machine, a frame, 65
a mold, and a mold lifting mechanism; com-
bined with packing mechanism comprising
a plunger head adapted to be engaged with
the material in the mold, a revolubly mount-
ed shaft, an eccentric fast thereon, a band 70
encircling the eccentric, a plunger rod hav-
ing connection with said eccentric band and
plunger head, means for oscillating the
shaft, an arm projecting from said band,
and a weight on the arm counterbalancing 75
said plunger.
2. In a block molding machine, a main
supporting frame, a mold supporting and
guiding frame secured in said main frame,
a mold slidably mounted on said mold sup- s0
porting frame, a mold lifting mechanism, a
packing mechanism comprising a plunger
head adapted to be engaged with the ma-
terial in the mold, a revolubly mounted
shaft, a plunger rod having an eccentric 85
connection with said shaft and adapted to
force said plunger head down and hold the
same in the mold while the mold is being
lifted by said mold-elevating mechanism,
and means to swing said plunger rod and 90
head laterally and to hold the same in an
out of the way position while the mold is
being filled.
3. In a block machine, a main supporting
frame, a mold supporting and guiding frame 95
secured in said main frame, a mold slidably
mounted on said mold supporting frame, a
mold elevating mechanism, a mold packing
mechanism comprising a plunger head
adapted to be engaged with the material in 100
the mold, a plunger rod connected with said
head and carrying an eccentric strap, an ec-
centric within the latter, a hand lever op-
era lively connected with said eccentric, and
a counter balancing weight connected with 105
the eccentric strap whereby the latter is
turned and held in an out of the way posi-
tion to permit the mold to be filled.
In testimony whereof I have hereunto set
my hand in presence of two subscribing wit- 110
nesses.
JOSEPH CATHRINER.
witnesses :
H. F. HolILT,
RUDOLPH WINDT.Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,
Washington, D. C."
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Cathriner, Joseph. Concrete-Block Machine, patent, February 10, 1914; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth859128/m1/5/: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.