US1261983A - Steam-hammer-die-securing means. - Google Patents

Description

E. WELANDER. r STEAM HAMMER DIE SECURING MEANS.

APPLICATION FILED SEPT-4. 191-1 Patented Apr. 9, 1918.

lnllmum Eda mil M/eZandei" EDWARD WELANDER, OF DETROIT, MICHIGAN.

STEAM-HAMMER-DIE-SEC URING MEANS.

Specification of Letters Patent.

Patented Apr. 9, 1918.

Application filed September 4, 1917. Serial No. 189,618.

To azz whom it may concern:

Be it known that I, EDWARD VVELANDER, is a subject of the King of Sweden, and a citizen of Sweden, residing at Detroit, 1n the county of WVayne and State of Michigan, have invented certain new and useful Improvements in Steam-Hammer-Die-Securing Means; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in means for securing the upper and lower dies of steam and other power hammers against lateral shifting as the machine is operated. Heretofore, it has been the general policy to use a single rectangular block of metal for this purpose, but experience has taught that these blocks soon become worn so that it is necessary to substitute new ones. This not only means added expense, but requires a considerable length of time. The present invention aims to overcome the difficulties heretofore encountered, by providing a block of novel construction which may be increased in size at any time when it should become so worn as to render this necessary.

With the foregoing general object in View, the invention resides in the novel features of construction to be hereinafter fully described and claimed, the descriptive matter being supplemented by the accompanying drawings which form a part of this specification and in which:

Figure l is a side elevation of the two dies of the steam hammer and their carrying means, showing the invention applied in dotted lines.

Fig. 2 is a vertical section on the plane of the line 22 of Fig. 1.

Fig. 3 is a horizontal sectional view on the plane indicated by the line 33 of Fig. 2.

Fig. 4 is a perspective view of the improved block.

In the drawings above briefly described, the numeral 1 designates the head of a steam hammer, 2 the anvil thereof, and 3 and 4 the upper and lower dies respectively, said dies having coacting grooves or other shaping means 5 for imparting the requisite shape to the material to be shaped. The head 1 and anvil 2 are provided with longitudinal grooves 6 having undercut side walls 7, said grooves receiving therein dovetail ribs 8 on the outer faces of the dies 3 and 4 as shown most clearly in Figs. 1 and 2. The usual tapered key 9 is employed for securing the rib 8 in groove 6, and said rib and one side of said groove are formed with seats 10 and 11 respectively, the side walls of the seat 11 converging downwardly as shown.

As above suggested, it has heretofore been the policy to employ a single rectangular key in the seats 10 and 11 to prevent shifting of the dies 3 and 4. No provision has been made, however, for compensating for the wear on the key and the walls of its seat, as the tendency of the dies to shift, is prevented by said key. By the use of the present invention, however, wear may be easily taken up so that the coacting grooved sides of the two dies, or other formations with which said dies may be provided, may at all times be made to properly engage.

The improved key is in the form of a substantially rectangular block of metal 12, two of the adjacent corners of said block having right angular notches 13 and 14, the latter being of greater width than the former. Both notches have inclined rear ends 15, the inclination of which corresponds to that of the undercut side walls 7 and rib 8, and as shown most clearly in Fig. 4, said notches open through the opposite sides of the block 12, through the top and gpttpgm thereof, and through one end of said The portion of the block 12 beyond the notches 13 and 14, is adapted for reception in the seat 11, and in order that said portion may properly engage said seat, the sides thereof are slightly inclined so that a substantially wedge shape is imparted to the block.

The reduced end portion of the block 12 is received in the seat 10, said portion being of considerably less width than said seat. The difference, however, is made up by a filler block 17, which is receivable in the notch 14, said block 17 being of less width than the notch as shown clearly in Fig. 4. The endwise thrust on the dies, is received by the block 17 of the two blocks 12, one of said blocks being employed for each die as is shown in Figs. 1 and 2. By this provision, therefore, it will be obvious that whenever wear should cause these dies to shift out of proper alinement, it is simply necessary the device.

that within the scope of the invention as to remove the block 17 and substitute a new one, which may 1n some cases, if necessary, be of greater slze than the original. As

wear takes place in the seat 11, suitable fill-- ing plates 11 may be inserted between the block and the walls of said seat. (See Fig.1.)

From the foregoing, taken in connection with the accompanying drawing, it will be obvious that although my invention is of simple and inexpensive nature it will be highly efiicient for the purpose intended and will prevent the loss of time and material now required in substituting a new key or block for'one which has become so worn as to be inefiicient. Since probably the best results are obtained from the specific construction shown and described, such construction constitutes the preferred form of I wish 1t understood, however,

claimed, numerous minor changes may be made without affecting the principal advantages.

I claim 1. Ameans for securing power hammer dies to their supporting bases, comprising a substantially rectangular metal block having in two of its adjacent corners a pair of right angular notches opening through the opposite sides of the block through the top and bottom thereof, and through one end, said notches extending approximately half the length of the "block and having inclined ends, the 5 sides of the block beyond the notches being slightly inclined to impart a substantially wedge shape for approxi: mately half the length of the block, and a filler block receivable in the wider notch and having an inclined inner end contacting with the end "thereof.

2 A structure as specified in claim 1, in v being disposed in said larger seat and the other end of said block together with said filler block being disposed in the other seat, the inclined ends of said notches being flush with the adjacent undercut wall of said groove.

' In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses. v V

EDWARD WELANDER. \Vitnesses:

ANTHONY J. PoDwYsooKI, DOMINIK 'SCRENOCK.

Copies of this patent may be obtained for five cents each, by addressing the '=Commiss'ioner of Patents,

' Washington, .D. C. Y

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