US2136009A

US2136009A - Block making machine

Info

Publication number: US2136009A
Application number: US184701A
Authority: US
Inventors: Jr Joseph J Holland
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-01-12
Filing date: 1938-01-12
Publication date: 1938-11-08
Anticipated expiration: 1955-11-08

Description

Nov.`8, 1938. L '.1.- J. HOLLAND. JR 2,136,009

` BLOCK MAKING MACHINE Filed Jan. 12. 1938 4 Sheets-Sheet 1 orneys Nov. 8, 1938. J. J. HOLLAND, JR' 2,136,009

BLOCK MAKING MACHINE Nov. s, 1938. Y J. J HOLLAND, R 2,136,009

BLOCK MAKING MACHINE Filed Jan. 12, v1938 4 sheets-sheet 4 Bygwmnwz. I sym m torneys Patented Nov. 8, 1938 l 'U'Nrre4 smits PTENT OFFIQE.

7 Claims.

lIhis inventionV relat-es to machines for making buildingv blocks and an object of the invention is to provide a machine of this character through the medium of which building blocks may be quickly and expeditiously made.

'A further object of the invention is to provide amachine embodying improved means for feeding the material from which the block is to be made to a mold; as Well as improved means for vibrating the mold during the feeding of the mat-erial thereto.

A further object of the invention is to provide a machine of this character embodying a novel arrangement of feed hopper, mold, and vibrator; as well as improved-means for controlling the feeding of the material from the hopper to the mold.

The invention together with its objects and advantages will be best understood from a study of `the following description taken in connection with the accompanying drawings wherein:-

l Figure 1 is a top plan View of the machine,

Figure 2 is a View partly in section and partly in elevation illustrating certain details herein- .Y after more fully referred to,

Figures 3 and 4 are detail views taken substantiallyon the lines 3-3 and 4-4 respectively of Figure 2,

Figure 5 is a fragmentary detail view with certain parts in section and showing the vibrator,v

Figure 6 is a fragmentary detail view partly in section and partly in elevation illustrating certain parts of a raising and lowering device for the mold,

Figure rlis an enlarged View partly in section and partly in elevation showing a core member positioned Within the mold,

Figurev Slis a top plan View of the mold,

Figure 9 is an enlarged fragmentary sectional View through the mold, the latter being shown in lowered position and Figure 10 is a perspective View of the building block'.

Referring to the drawings by reference numerals it will be seen that the device is particularly designed for making or forming building blocks of the type suggested in Figure 10 and indicated by the reference numeral 5, said blocks being formed of suitable material and shown as f being provided at the opposite ends thereof with grooves 6 and intermediate the grooved ends l with through openings l.

In the preferred embodiment thereof the block making machine comprises a base 8 `from which 1. rises a pair of tubular standards that telescopically receive therein rods It. The rods Hl at their upper ends are connected by a cross member II. Integral with the cross member II are the upper ends of core Shanks I2 and these core Shanks I2 at their lower ends are provided with integral cores I3 which are preferably of the shape shown.

The outer or endmost cores I3 are provided with suitable formations I4 provided for the purpose of'forming the grooves 6 in the block 5, it beingrunderstood that the cores I3 are used in forming the through openings e.

In connection with the above and from a study of Figures 2 and 8 it will be seen that the formations Hl are inthe form of plate-like elements substantially channel shaped in end elevation.

The core shanlrs-IZ and cores I3 are accommodated within a feed hopper I5'th-e walls of which are suitably inclined to insure a complete feeding of the material therein toward the bottom of the hopper, and which bottom is open; The hopper I5 is rigidly supported between the standards S through the medium of brace arms I.

For the bottom of the hopper I5 there is provided 'a valve indicated generally by the reference numeral I'I;

Valve Il isrin the form of a pair of elongated plates I3-I il and these plates at one end are pivotedas at It toa fixed collar or flange EB on one of the standards 9 while adjacent their free ends the plates I8 rest on a support bar 2| that is secured to the standard 9 and extends laterally thereof as clearly shown in Figure 4.

Intermediate their ends the plates i8 are complementarily notched as at 22 to provide core accommodating openings as clearly shown in Figures 4 and 7; Manifestly with the plates I8 in the dotted line or open position shown in Figure 4 the contents of the hopper I5 will flow therefrom into a mold indicated generally by the referencenumeral 2d.

The mold 2d is of a frame-like construction having side and end walls and accommodates therein a bottom 25 provided on the upper end of a tubular shank 25 which has a sliding fit on a short postor standard 2 rising from the base 8.

The mold 24 has depending fromthe corners thereof guide sleeves 2t which slide upon guide standards 29 rising from the base 8, and for raising and lowering the lmold 2d there is provided a rock shaft 30 suitably supported between the lower ends of the standards S and drive from the shaft 3B istransmitted to the mold 24 through the medium of I`toggle links 3 I uit;

itil

A hand lever 32 is provided for rocking the shaft 30.

For transmitting upward movement of the mold 24 to the bottom member 25, .the mold 24 at the corners thereof is provided with anges 33 which, when the mold 24 is just short of the limit of its upward movement engage the bottom member 25 at the corners of the latter to cause the bottom 25 to move upwardly with the mold as the mold 24 moves to the extremity of its upward motion. The object and purpose of this will be hereinafter more fully explained.

For releasably securing the mold 24 at the desired position of adjustment there is provided on the rock shaft 3i! a disk 34 provided with notches 35, 36 and Si in the periphery thereof, and cooperable with these notches is a dog 38 provided on one end of a spring arm 39that at one end is suitably secured to the upper end of a relatively short post 48 rising from the base 8 asV shown in Figure 3.

For raising and lowering the cores I3 there is provided a suitable hand lever 4I which intermediate its ends is pivoted to a bracket 42 mounted on either of two sides of the hopper I5 as sug-l gested in Figure 3. At one end thereof the hand lever 4I has a lost motion or pin and slot connection 43 with the cross rod II.

For releasably holding the cores I3 in the raised position shown in Figure 10 there is suitably mounted on one of the standards 9 a spring dog 44 the head 45 of which worksthrough a suitable opening provided therefor in said one standard 9 to engage a recess 46 provi-ded therefor in one of the guide rods Iil as clearly shown in Figure 2.

Extending laterally from one side of the mold 24 is a table 4l that is adapted to receive the block upon ejection of the block from the mold 24, and beneath the table 41 is a hood 48. Ar-

I8 adjacent the pivoted end of said one plate as clearly shown in Figure 4. With the valve plates in the closing position shown in full line in Figure 4, said one plate 8 will engage the push button 52 of switch 4I for maintaining the switch open. Consequently it will be seen that when the plates i8 are swung to the open or dotted line position shown in Figure 4 push button 52 will move outwardly to close the switch 5I and therefore complete a circuit through the motor 49 so that the latter will serve to vibrate the mold 24, this vibrating of the mold taking place during the pouring or transfer of the contents of the hopper I5 to the mold 24.

'Ihe utility and operation of the machine will be best understood from the following:

In filling the mold 24 the latter is substantially in the raised position shown in Figure 2 while the cores I3 are lowered into the mold 24 as suggested in Figure 7. Valve plates I8 are swung to the open or dotted line position shown in Figure 4 thus permitting the material to discharge from the hopper I5 into the mold 24 about the cores I3 and formers I4. In this connection it will be noted that with the valve plates I8 in open position the circuit through the motor I 9 is completed so that the mol-d will be subjectedV the hopper I5.

to a vibratory action during the lling of the mold with the contents of the hopper I5. When the proper amount of material has been fed into the mold 24 valve plates I8 are swung to the closed or full line position shown in Figure 4 thus cutting off further flow of the material from The movement of the plates I8 to this closing position also results in a tripping of the switch 5I to open position so that the circuit through the motor 49 is interrupted.

In'connection with the above it will be appreciated that just prior to the feeding of the contents of the hopper I5 to the mold 24 there is placed within the mold 24 to rest on the bottom level and the valve plates I8 moved to the closed position to cut off further flow of the contents of the hopper I5 the operator pulls'- downwardly on the hand lever 4I to raise the cores I2 to the position shown in Figure 2, in which position, it will be noted, the lower ends of the cores I3 are substantially flush with the closed valve plates I8. When this has been accomplished the operator then pulls on the lever 32 until notch 35 is engaged with the dog 38, this resulting in a. transmission of a further upward movement of the mold 24 from the position shown in Figures 2 and 3 a distance upwardly of about one and one-half inches so that the upper edge of the mold contacts the undersides of the plates I8 which latter together with the lower surfaces of the cores i3 provide a substantially smooth top plate for the mold 24 when in this latter position for smoothing off the mold contents, and at the same time, compressing, to a certain extent, the contents of the mold.

The final operation is then to swing the lever 32 to rotate the shaft 3i] in a clockwise direction (Figure 6) until dog 38 is engaged with notch 3l. The rotation of the shaft 30 in this direction will result, through the medium of the links 3i in a downward movement of the mold 24 l and this downward movement of the mold 24 is transmitted to the bottom member 25. When, however, the bottom 25 is in the position shown in Figure 9 mold 24 continues its downward movement until the upper edge of the walls of the mold are substantially ilush with the bottom 25, and the block consequently positioned so as to be readily slid, with the pallet board 53, from off the bottom member 25 onto the shelf 'or table 47 whereupon the parts of the machine are in a position in order that the operation just described may be repeated for the forming of the neXt block.

In connection with the movement of the mold 24 from the position shown in Figure 2 upwardly to engage the closed plates I8 it will be seen, that with the flanges 33 engaging the bottom member 25 the latter will be caused to move'upwardly from the' position shown in Figure 2 with the mold 24 as the latter moves from the aforementioned position shown in Figure 2 to the extremity of its' upward movement or, in other words, to a position engaging the undersides of the plates I8.

It will thus be seen that with a machine of this character a building block such as shown in Figure 10 may be quickly and easily made, and in actual practice it has beenfound that these blocks can be made at the rate of one every ten seconds.

It is thought that a clear understanding of the construction, utility and advantages of an invention of this character will be had without a more detailed description.

Having thus described the invention what is claimed as new is:-

1. In a block making machine of the character described, a hopper, a mold arranged in alignment with the hopper, said hopper being open at its bottom, core members movable perpendicularly within the hopper and through the bottom thereof into and out of the mold, and a valve for the bottom of the hopper comprising a pair of pivoted complemental plates, said plates having complemental notches in the meeting edges thereof to provide through openings` to accommodate said cores.

2. In a block making machine of the character described, a hopper, a mold arranged in alignment with the hopper, said hopper being open at its bottom, core members movable perpendiculuarly within the hopper and through the bottom thereof into and out of the mold, and a valve for the bottom of the hopper comprising a pair of pivoted complemental plates, said plates having complemental notches in the meeting edges thereof to provide through opening to accommodate said cores, supporting means for said cores including means for raising and lowering the cores.

3. In a block making machine of the character described, a hopper, a mold arranged in alignment with the hopper, said hopper being open at its bottom, core members movable perpendicularly within the hopper and through the bottom thereof into and out of the mold, and a Valve for the bottom of the hopper comprising a pair of pivoted .complemental plates, said plates having complemental notches in the meeting edges thereof to provide through openings to accommodate said cores, supporting means for said mold including means for` raising and lowering the mold and away from the bottom of said hopper, and for securing the mold at the desired positions of elevation.

4. In a block making machine of the character described, a hopper, a mold arranged in alignment with the hopper, said hopper being open at its bottom, core members movable perpendicularly within the hopper and through the bottom thereof into and out of the mold, and a valve for the bottom of the hopper comprising a pair of pivoted complemental plates, said plates having complemental notches in the meeting edges thereof to provide through openings to accommodate said cores, supporting means for said mold including means for raising and lowering the mold and away from the bottom of said hopper, and for securing the mold at the desired positions of elevation, and a vibrator for said mold mounted on a side of said mold.

5. In a block making machine oi the character described, a hopper, a mold arranged in alignment with the hopper, said hopper being open at its bottom, core members movable perpendicularly within the hopper and through the bottom thereof into and out of the mold, and a valve for the bottom of the hopper comprising a pair of pivoted complemental plates, said plates having complemental notches in the meeting edges thereof to provide through openings to accommodate said cores, supporting means for said mold including means for raising and lowering the mold and away from the bottom of said hopper, and for securing the mold at the desired positions` of elevation, and a vibrator for said mold mounted on a side of said mold, said vibrator including an electric motor, a control switch for said motor, and said control switch being mounted between the plates of said valve and having a push button in the path of one of said plates to be engaged thereby for opening the switch incidental to a movement of the valve plates to a closing position.

6. In a block forming machine of the character described, a hopper, posts at opposite sides of said hopper, rods having a sliding t in said posts, a cross bar connecting the rods at one end of the latter, a plurality of rigid shanks depending from said cross bar and extending into said hopper, core members on the shanks at the lower ends of the latter, and formers on the endmost core members for giving a predetermined shape to the respective opposite ends of a block to be formed in said machine.

'7. In a block forming machine of the character described, a hopper, posts at opposite sides of said hopper, rods having a sliding t in said posts, a cross bar connecting the rods at one end of the latter, a plurality of rigid shanks depending from said cross bar and extending into said Y hopper, core members on the shanks at the lower ends of the latter, and a valve for the bottom of said hopper including a pair of complemental plates hinged at one end for movement toward and away from one another, and said plates being complementarily notched to provide through openings for accommodating said core members when the plates of said Valve are in a closed position. JOSEPH J. HOLLAND, JR.