US1291257A - Concrete-wall-mold device. - Google Patents

Description

J. M. THOMPSON. CONCRETE WALL MOLD DEVICE.

APPUCATION FILED JULY]. I9I8 Patented Jan. 14, 1919.

2 SHEETS SHEET I.

J. M. THUMPSQMH CONCRETE WALL MOLD DEVICE.

APPLICATION FILED JULYI. 1918.

1,291,257., Patented Jan. 14,1919.

2 SHEETSSHEET Z.

, gum/01 @Rnmm v $773 1720179123012 WW I V meme/1 a STATES JACOB MULLEN' THOMPSON, 0F FONDTDU LAC, WISCONSIN.

CONCRETE-WALL-MOLD DEVICE.

Specification of Letters Patent. 1

Patented Jan. 14, 1919.

Application filed July 1, 1918. Serial No. 242,780.

and more particularly to a device intended to be used in connection with molds for forming concrete or cement walls and the like.

The principal object of the invention is to provide a clamp for holding the two sides of a mold in their relatively spaced position, said clamps being easily manipulated and being capable of being placed at any point upon the sides of the mold.

Another object of the invention is to improve upon devices of this general class by providing a device which will be extremely simple, strong, durable and inexpensive in construction, one which will be efficient and reliable in operation, and Well adapted to the purpose for which it is designed.

With these and numerous other objects in view, the invention consists of certain novel features of construction and the com bination and arrangement of parts as will be hereinafter fully described and claimed.

Tn the accompanying drawings forming a part of the application, and in which similar reference characters designate like parts throughout the several views lFigure 1 is a cross sectional view through the wall and mold;

Fig. 2 is a detailed horizontal sectional view taken on the plane indicated by the line 2-2 of Fig. 1.

Fig. 3 is a longitudinal sectional view through one of the clamps; and

Fig. 41 is a perspective view of the same.

Referring more particularly to the drawings, the numerals 1 and 2 represent the two sides of the mold, each of these two sides being composed of one or more wooden planks 3, the latter extending longitudinally of the mold and being placed edge to edge as clearly shown by the drawings. These two sides 1 and 2 are maintained in spaced parallel relation by means of two or more spac- This invention relates generally to molds,

ing ties 4:. These spacing ties 4 are fiat metallic bars having openings 5 extending transversely between the sides 1 and 2 adj acent the side edges of the planks 3. Where more than one plank 3 is used in one sideof the-mold the ends of the intermediate ties 4 overlap themeeting edges of the planks and hold bothsets in their relatively spaced relation.

-The reference numerals 6. designate flat metallic bars which. extend through the sides of the mold between the side edges of the planks 3, and having their inner ends constructed into hook shape as at 7 to engage the openings 5 in the spacing ties 4-. The other ends of the bars 6 are connected to U-shaped metallic body members 8 by means of rivets 9. The ends of these U-shaped body members 8 are provided with screw- ..threaded openings 10 through which operate screws 11. These screws 11 are headed at their outer ends as at 12, and are spiked at their inner ends as at 13, while they are provided intermediate of their ends with reduced portions 1 1.

The spikes 13 and reduced portions 14 of.

the screws 11 are swiveled in the ends of inverted U-shaped members 15 which serve as limiting the longitudinal movement of the screws with respect to the base members 8.

The clamps at the top and the bottom of the mold are each provided with only one screw, while those used between the various planks are each provided with two screws, one of which engages the lowermost plank and the other engages the uppermost plank.

The use and operation of the device will be readily understood without. description other than by stating that in constructing the mold the lowermost planks are first placed in their spaced parallel position with the spacing ties 1 disposed between them. The bars 6 are then engaged with the openings in the ties 4: and; the screws 11 are turned until their spiked ends are brought to bear against the outside of the planks. Other planks are then placed edge to edge upon the lower planks and the mold is built as high as desired. After the concrete or cement is pried between the sides 1 and 2 and allowed to set, the screws are turned in the opposite Wall as a r reinforcement or else they maybe withdrawn and used overland over again.

As various changes in form, proportion,

and in the minor details of construction may be resorted to Without departing from the spirit ofthis invention, itcis to be under- 7 stood'that I do not Wish to be limited to the ing a bar having one end formed with a hook adapted to be detachably connected to the spacing tie of a-concrete wall mold, a body member secured to the other-endo f said bar and having a screw-threaded opening therein, a-screw' operating in said opening, and

- the means carried by said screw for limiting its forward and rearward movement with respect to said body member.

2. A device ofthe'class described c-omprising' a flat bar having one end formed with a ho'ok. adapted 'to be detachablyconnected to the spacing'tieiof a concrete wall mold, a U- shaped body member-secured to the other end of said bar and having screw-threaded openings in its two end portions, a screw opcrating in said openings, and means carried by said screw for limiting its forward and rearward movement with respect to the same.

3..A device of the class described comprising a fiat bar hzvmg one end formed -with ahoolr adapted to be detachably connected to the spacing tie of a concrete wall o Gopiesof this patent may b'obtained for-five cents each, byvaddressing the Commissioner of Patents,

4 Washington, 13:0."

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