US1055424A

US1055424A - Molding-machine.

Info

Publication number: US1055424A
Application number: US61142011A
Authority: US
Inventors: Hiram A Smith
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-02-28
Filing date: 1911-02-28
Publication date: 1913-03-11
Anticipated expiration: 1930-03-11

Description

H. A. SMITH.

MOLDING MACHINE.

41PL10AT1011 FILED ma. 2s, 1911.

Patented Mar. 11, 1913.

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MOLDING MACHINE.

APPLIUATION FILED FEB. ze, 1911.

Patented Mar. 11, 1913.

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H. A. SMITH. MOLDING MACHINE. APPLIOATIONTILED IBB.28, 1911.

Patented Mar. 11, 1913.

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atroz/mow HIRAM A. SMITH, 0F PAW PAW, MICHIGAN.

MOLDING-MACHINE.

Specification of Letters Patent.

Application filed February 28, 1911.

Patented Mar. 11, 1913.

Serial No. 611,420.

To all whom t may concern Be it known that I, HIRAM A. SMITH, a citizen of the United States, residing at the village of Paw Paw, county of Van Buren, State of Michigan, have invented certain new and useful Improvements in Molding- Machines, of which the following is a specification.

This invention relates to improvements in molding` machines.

'The main objects of this invention are: First, to provide an improved molding machine adapted for use in the manufacture of blocks for building circular structures, such as tanks, silos and the like, which can be readily adjusted tor the manufacture of blocks for building structures of different diameters. Second, to provide an improved molding machine, which is capable of very rapid manipulation and one which is easy to operate. Third, to provide an improved molding machine which is comparatively simple and economical in structure and` at the same time, one which is very durable and not likely to get out of repair.

Further objects, and objects relating to structural details will detinitelv appear from the detailed description to follow'.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure 1 is a side elevation of a structure embodying the features of my invention, one of the end walls being shown in its open or collapsed position, by dotted lines. Fig. 2 is a plan View, a portion being broken away to better illustrate the structural details. Fig. 3 is an end View looking from the right of Fig. 1, with one of the side walls in its open or collapsed position. Fig. 4L is a detail vertical section taken on a line corresponding to line 4-4 of Fig. 1. Fig. 5 is a detail horizontal section taken on a line corresponding to line 5 5 of Fig. 4. Fig. G is a detail section taken on a line corresponding to line 6 6 of Figs. 1 and 2. Fig. 7 is a detail section taken on a line correspending to line 7-7 of Fig. 2, showing the connection for bottom wall supporting arms to their supports.

In the drawing, similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Referring to the drawing, the frame is preferably formed of side members l and end members 2 secured together` by bolts 3. The frame may, however, be of any desired construction. The mold bottom or pallet 4 shown is formed of a plate having a cross cleat 5 at each end, and at the center, and longitudinal strips G' secured below the cleats. This secures a very strong bottom and one which may, at the same time, be formed of light material. The side walls 7 and the end walls 8 are supported by arms 9. The bottom is supported by the arms 10. The arms 9 are pivotally mounted on the frame brackets 11, the brackets being provided with vertical slots 12 for the arm pivots 13. The pivots are provided with clamping sleeves 11i, so that the pivots can be adjustably secured in the slots without clamping the arms. The walls are adjustably mounted on the arms so that they can be adapted for the manufacturing of blocks for use in building tanks orjsilos or other circular structures. This in the structure illustrated, I accomplish by providing the walls with coupling plates 15 having curved slots 16 therein. The plates are pivoted on the arms at 17 and adjustably secured by the clamping bolts 18. Thus mounted the walls may be adjusted as desired. The brackets A19 for the arms 10 of the bottom, are mounted on the projecting ends 20 of the cross pieces 21. This is to permit a swinging movement, and, at the same time, the bottom is not tilted sufficiently to be objectionable. The arms 10 are provided with cross bars 22 adapted to receive the mold bottom between them, as illustrated. The bottom is raised and lowered by means of the cam shaft 23, having cams 24 thereon, which coact with the cam engaging members 25 and the arms 10. These cam engaging members are, in the structure illustrated, springs, and are adjusted and supported by means of the set screws 26, see Fig. 4. The cross bars 21 are provided with stops 27 for the side wall supporting arms, the arms being provided with coacting stops 28, that of the structure illustrated being in the form of screws, so that they may be readily adjusted. To guide and support the arms when the walls are swung to their erected position, I provide catches 29, which are mounted on the cross bars 2l, adjusting screws 30 being provided for the catches. These catches prevent the lateral movement of the walls when they are swung to their erected position.

The supporting arms for the end walls are actuated by means of the crank 31, having disk-like crank members 32 thereo-n, which are connected to the arms by links 33. rIlhese links are provided with yokeshaped coupling members 34, which permit the swinging of the crank pivots 35 past the axial center of the shaft so that a toggle lock for the side walls is secured. 'Ihese links are coupled to the crank members in opposed pairs so that the strain on the parts is minimized. The end walls are provided with side wall engaging members 36 which engage the outer sides of the side walls when the end walls are swung into position, as shown in Fig. l, thus retaining and supporting the side walls. One of the side walls is provided with a groove 37 and the other with a corresponding rib 38 for forming tongues and grooves in the blocks molded. The walls are also preferably provided with flange-like ribs 39 at their edges so as to form blocks with beveled corners.

I preferably arrange a sheet of paper i0 on the mold bottom so that the concrete` does not adhere to the bottom and further this secures smooth faces for the blocks.

The walls of my improved mold can be adjusted to form blocks having parallel edges or edges inclined at any angle desired, for the building of circular structures of different diameters. The adjustmentis very easily accomplished. My improved molding machine is capable of rapid manipulation and is easy of operation.

In setting up the mold, the side walls are first swung to their erected position, the end walls are actuated to their erected position by means of the crank 3l, a single movement of the crank being suiiicient. The bottom is then raised by means of the cam shaft 23, which is provided with a lever 41. After the mold is filled, the end walls are swung out and this releases the side walls, which are in turn swung out and the block is lifted from the machine, the bottom being ordinarily used as a pallet for the drying of the block. Another pallet or mold bottom is then placed in the machine and the operation may be repeated.

I have illustrated and described my invention in what I consider a satisfactory embodiment, although I am aware that considerable structural variations or modifications are possible. I have not, however, illustrated these variations or modifications as they will no doubt be readily understood by those skilled in the art to which this invention relates.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a molding machine, the combination with the frame, mold bottom and side and end walls, of bottom and wall supporting arms, the bottom arms being horizontallydisposed and the wall arms being vertically disposed; slotted coupling members on said walls adjustably connected to said wall arms by pivots and clamping bolts arranged in said slots; vertically slotted brackets to which said arms are secured by pivots adjustably arranged in the slots; cross bars projecting at one side of said frame, the bottom arm brackets being mounted on the projecting ends of said cross bars; side wall arm stops on said cross bars; coacting adjustable stops on said side wall arms; spring catches for said side wall arms mounted on said cross bars; a cam shaft mounted on said cross bars; cams on said shaft; spring cam engaging members on said bottom arms; adjusting screws therefor arranged through said arms; a crank; and links connecting the end wall arms to said crank, the links being provided with yoke-shaped coupling members connected to the crank members of the shaft in oppositely-disposed pairs, the crank member pivots being adapted to swing past the axial center of the crank to provide a locking toggle, the end walls being provided with side wall engaging members, all coacting for the purpose specified.

2. In a molding machine, the combination with the frame, mold bottom and side and end walls, of bottom and wall supporting arms, the bottom arms being horizontallydisposed and the wall arms being vertically disposed; slotted coupling members on said walls adjustably connected to said wall arms by pivots and clamping bolts arranged in said slots; vertically slotted brackets toy which said arms are secured by pivots adjustably arranged in the slots; cross bars projecting at one side of said frame, the bottom arm brackets being mounted on the projecting ends of said cross bars; side wall arm stops on said cross bars; coacting adjustable stops on said side wall arms; a cam shaft mounted on said cross bars; cams on said shaft; cam engaging members on said bottom arms; a crank; and links connecting the end wall arms to said crank, the end walls being provided with side wall `engaging members, all coacting for the purpose specified.

3. In a molding machine, the combination with the frame, mold bottom and side and end Walls, of bottom and Wall support-- ing arms, the bottom arms being horizontally-disposed and the wall arms being vertically disposed; slotted coupling members on said walls adjustably connected to said wall arms by pivots and clamping bolts arranged in said slots; vertically slotted brackets to which said arms are secured by pivots adjustably arranged in the slots; cross bars projecting at one side of said frame, the bottom arm brackets being mounted on the projecting ends of said cross bars; spring catches for said side wall arms mounted on said cross bars; a cam shaft mounted on said cross bar; cams on said shaft; spring cam engaging members on said bottom arms; adjusting screws therefor arranged through said arms; a crank; and links connecting the end wall arms to said crank, the links being provided with yoke-shaped coupling members connected to the crank members of the shaft in opposit-ely-disposed pairs, the crank member pivots being adapted to swing past the axial center of the crank to provide a locking toggle, the end walls being provided with side wall engaging members, all co-acting for the purpose specified.

4t. In a molding machine, the combination with the frame, mold bottom and side and end walls, of bottom and wall supporting arms, the bottom arms being horizontallydisposed and the wall arms being vertically disposed; slotted coupling members on said Walls adjustably connected to said wall arms by pivots and clamping bolts arranged in said slots; vertically slotted brackets to which said arms are secured by pivots adjust-ably arranged in the slots; cross bars projecting at one side of said frame, the bottom arm brackets being mounted on the projecting ends of said cross bars; a cam shaft mounted on said cross bars; cams on said shaft; cam engaging members on said bottom arms; a crank; and links connecting the end wall arms to said crank, the end walls being provided with side wall engaging members, all coacting for the purpose specified. Y

5. In a molding machine, the combination with the frame, mold bottom and side and end walls, of bottom and wall supporting arms, the bottom arms being horizontallydisposed and the wall arms being vertically dispo-sed; vertically slotted brackets to which said arms are secured by pivots adjustably arranged in the slots; cross bars projecting at one side of said frame, the bottom arm brackets being mounted on the projecting vends of said cross bars; side Wall arm stops on said cross bars; coacting adjustable stops on said side wall arms; spring catches for said side wall arms mounted on said cross bars; a cam shaft mounted on said cross bars; cams on said shaft; spring cam engaging justing screws therefor arranged through said arms; a crank; and links connecting the end wall arms to said crank, the links being provided with yoke-shaped coupling members connected to the crank members of the shaft in oppositely-disposed pairs, thecrank member pivots being adapted to swing past the axial center of the crank to provide a locking toggle, the end walls being provided with side wall engaging members, all coacting for the purpose specified. i

In a molding machine, the combination with the frame, mold bottom and side and end walls, of bottom and wall supporting arms, the bottom arms being horizontally-disposed and the wall arms being vertically disposed; \f'erticallyslotted brackets to which said arms are secured by pivots adjustably arranged in the slots: crossbars projecting at o-ne side of said frame, the betteln arm brackets being mounted on the projecting ends of said cross bars; side wall arm stops on said cross bars; coacting adjustable stops on said side wall arms; a cam shaft mounted on said cross bars; cams on said shaft; cam engaging members on said bottom arms; a crank; and links connecting the end wall arms to said crank, the end walls being provided with side wall engaging members, all coacting for the purpose specified.

7. In a molding machine, the combination with the frame, mold bottom and side and end walls, of bottom and wall supporting arms, the bottom arms being horizontally disposed and thefwall arms being vertically disposed; vertically-slotted brackets to which said arms secured by pivots ad-V justably arranged in the slots; cross bars projecting at one side of said frame, the bottom arm brackets being mounted on the projecting ends of said cross bars; spring catches for said side wall arms mounted on said cross bars; a cam shaft mounted on said cross bars; cams on said shaft; spring cam engaging members on said bottom arms; adjusting screws therefor ar anged through said arms; a crank; and links connecting the end wall arms to said crank, the links being provided with yoke-shaped conpling members connected to the crank members of the shaft in oppositely-disposed pairs, the crank member pivot-s being adapted to swing past the axial center of the crank to provide a locking toggle, the end walls being provided with side wall engaging members, all coacting for the purpose specified.

8. In a molding machine, the combination with the frame, mold bottom and side and end walls, of bottom and wall supporting arms, the bottom arms being horizontallydisposed an`d the wall arms being vertically disposed; vertically-slotted brackets to which .said arms are secured by pivots admembers on said bottom arms; ad- Y justably arranged in the slots; cross bars projecting at one side of said frame, the bottom arm brackets being mounted on the projecting ends of said cross bars; a cam shaft mounted on said cross bars; cams on said shaft; cam engaging members on said bottom arms; a crank; and links connecting the end wall arms to said crank, the end walls being provided with side wall engaging members, all coacting for the purpose specified.

9; In a molding machine, the combination with the frame, mold bottom and Walls, of pivoted supporting arms for the mold walls, the mold walls being mounted on said arms for tilting adjust-ment thereon relative to the bottom to permit their faces being set at varying angles relative thereto, the pivots of said arms being arranged for vertical adjustment.

10. In a molding machine, the combination with the frame, of a mold bottom, side Walls, supporting arms for said side Walls, slotted coupling members on said side walls adjustably connected to said supporting` arms by pivots and clamping bolts arranged in said slots, and vertically slotted brackets through which said supporting arms are secured by pivots adjustably arranged in the slots, the pivots being provided with means for clamping them in their adjusted positions in the slots.

l1. In a molding machine, the combination with the frame, mold bottom and walls, of supporting arms for opposed Walls, the walls being mounted on said arms for tilting adjustment relative to the plane of the bottom to permit their faces being set at varying angles relative thereto when in their closed position, vertically slotted supporting brackets for saidiarms; and pivots for said arms arranged in the slots of said brackets, said pivots being provided with clamping sleeves and nuts whereby they may be adjustably secured in the slots.

l2. In a molding machine, the combina-- tion with the frame, of a mold bottom, said bottom being supported for vertical adjustment, a pair of opposed side Walls, and pivoted supporting arms for said side walls whereby the side walls are supported to swing over said bottom to their closed position, the Walls being mounted on said arms for tilting adjustment relative to the plane of the botto-m to permit their faces being set at varying angles thereto, the pivots of the supporting arms being adjustably supported, for the purpose specified.

13. In a molding machine, the combination with the frame, of a pair of opposed mold side Walls, and pivoted supporting arms therefor, said Walls being adjustably mounted on their said supporting arms to permit tilting' adjustment of the Walls to vary the angles of their faces relative to each other, or to permit their being adjusted in parallel planes, the pivots for said Wall supporting arms being mounted for vertical adjustment.

let. In a molding machine, the combination with the frame, of a mold bottom, side walls adapted to swing over said bottom When in their Closed position, and pivoted Wall supporting arms, the pivots of the arms being vertically adjustable, the Walls being adjustably mounted on the arms to permit tilting thereon relative to the bottom.

In Witness whereof, I have hereunto set my hand and seal in the presence of two Witnesses.

HIRAM A. SMITH. L. s] Vitnesses L. G. GREENFIELD, M. L. GLASGOW.

Copies of this patent may be obtained for iive cents each, by addressing the Commissioner of Patents, Washington, D. C.