US1526339A - Forging hammer - Google Patents

Description

J.v B. HENRY FOBGING HAMMER Filed March 19, 332i; 2 Sheets-Sheai 1 lNVENfoR WITNESSES.

Feb, 11. 1925i J. B. HENRY EORGING HAMMER Filed March 19. 1924 .,2 Sheets-Sheet 2 .I INVENTOR 5. Mi

Patented Feb. 17, 1925.

y UNITED STATES JOHN BYRON` HENRY, 0F .ASPINVVALL7 PENNSYLVANIA. l

FORGING HAMMER.

Application led March 19, 1924. Serial No. 700,255.

To all 'whom it may concern.'

Be it known that I, JOHN BYRON HENRY, a citizen of the United States, and a resident of Aspinwall, in the county of Allegheny and State off Pennsylvania, have invented a new and useful Improvement in Forging Hammers, of which the following is a specilication.

This invention relates to power hammers, and particularlyto steam forge hammers including a supporting trame, a hammer operating power cylinder provided with a piston and piston rod carrying a ram or hammer attached thereto.

Heretofore, it has been customary to pro vide composite frames for such hammers, the several castings comprising the entire frame being fastened together by means oi' bolts, tie rods, and similar connecting means, together with washers, spacing blocks and thimbles used in connection therewith. With the use of these `composite frames great difficulty has been experienced not only in maintaining the several parts of the frame itsellin proper relative position to each other, but also in maintaining the relative positions of the frame to the bed plate and anvil block at the base of the forging hammer, as well as in respect to the power cylinder and its associated piston, piston rod and attached ram surmounting the upper portion of the frame. Due to the nuw merous and ever varying strains continually thrown upon the several parts, constant wear occurs between the abutting surfaces, the fastening devices tend to gradually loosen, and the entire initial setting of the parts becomes disarranged. Consequently, the necessary alignment assuring proper working Vof the movable `parts is destroyed, resulting in binding, excessive'friction and consumption of power, unsatisfactory forging by the dies, and a continual enhance ment of the bending and distortion of the parts unless careful and repeated adjustments are made at comparatively short intervals. Y

It is an object of this invention to overcome the disadvantages above noted'by providing a forging hammer in which the proper relative positioning and alignment of the several parts may be maintained in service without diiculty and in which the entire main frame is formed as a single integral piece, y

It isfalso an object to provide aframe of the character referred to so shaped as to facilita-te the Vmounting thereof upon the anvil block or other support and the mounting` of the power cylinder upon the trame.

It is still a further object to provide a single piece integral frame in which the shocks and vibrations from the anvil and power cylinder transmitted to the irame are reduced. to a minimum, which object is accomplished in the embodiments illustrated by spacing the intermediate portions of the transverse apron members of the frame away from the anvil block and cylinder casting'.

These and other objects of the invention will more fully appear when taken in conjunction with the following description and the appended claims.

In the Vaccomyiianying drawings, l is a front. elevational view of one embodiment of the invention; Fig. 2 a side elevation of the forging hammer illustrated in Fig. l; Fig. 3 a horizontal transverse sectional view i taken substantially on the line III- III of Fig. l; Figs. 4 and 5 views corresponding to Figs. l and 2 illustrating a y. ,I modified form of the invention; and Fig.

6 a transverse sectional view taken on the vline VI-VI of Fig. 4.

per edges, as clearly shown in Fig. 2, thus vforming a bi'furcated extremity which is adaptedto receive the base portion 8 of the power cylinder casting. The intermediate portion of the aprons 7, 7', disposed beltween the legs 4, 4l', are spaced slightly awa-y it'romV the power `cylinder, thus strengthening the necessary connection 5 between the legs while at the same time avoiding a large portion of the area ol such connecting means being brought into intimate contact with portions of the power cylinder casting.

The transverse 'connection between the which are Y `flared slightly outwardly towards their uplower ends of the upright legs is similarly formed, and consists of the depending, flared aprons 9, 9, which are adapted to str-addio the anvil block `which is Vreceived 'within the bifurcation thus formed, while the intermediate portion of the aprons are spaced from the sides of the anvil block as clearly shown in Fig. 2.

The portions of the base of the power cylinder casting and those of the frame at the juncture of the aprons, as well as the abutting surfaces lbetween the anvil block and the frame, are suitably recessed and machined so as to provide a close and neat fit. The frame is connected to the anvil block by any suitable fastening means such as the frame bolts indicated at 10 while the cylinder casting is likewise held to its seat at the upper portion of the frame by means of the cylinder bolts 11.

The upright legs el. and e are preferably H-shaped in cross-section, as shown in Fig. 3, and the inner sides thereof are equipped with suitable guides 12, 19. for guiding the ram 13 attached to the lower extremity of the piston rod 14 of the power cylinder in its reciprocating movement, these parts being constructed and operated in a well known manner.

By lforming` the entire ina-in frame 3 as a single 'integral piece or casting, all dans ger of distortion thereof due to relative movement between its parts is eliminated, and afterfthe frame has been securely connected to the anvil block and power cylinder casting and properlyaligned, the parts will remain in this condition indefinitely, thereby eliminatingl the necessity for the continual adjustment, aligning, and repositioning of the several parts as in many of the previously used forging hammers now upon the market.

The bi'ftir'cat'ed extremities of the frame formed by the separated pairs of aprons, aid inthe ready assembly of the parts due to the vreception 'of the upper portion of the anvil block within the space between the aprons 9, 9', and the power cylinder 2 is readily guided to its 'seat by means of the disposition of the aprons 7 and T. Although the aprons perform this function as well -as providingan essential part of the necessary transverse connect-ions between the legs, because of the spaced relation between the intermediate portions of the aprons and the anvil block and cylinder casting` very little vibration from the anvil block or cylinder is transmittedthrough these parts, consequently lessening the objectionable strains land vibrations from these sources to a. minimum.

Figs. l to G illustrate a modified embodiment of the invention corresponding `more or less generally y to the so-called double frame 'type of hammer. 1n this n'iodiiication the lower extremities of theverse member 5'LL comprising the spaced ,Y

apart aprons la corresponding to the bifurcated upper extremity of the frame in the first described embodiment, and the power cylinder is similarly supported in position thereon. rlhe remaining portions of the hammer correspond generally with tnose described in connection with the form of Figs. 1 to 3, and have been designated by the saine reference numerals with the addition of an exponent a.

An opening 17 is provided in the base portion 15 at a point between the lower ends of the legs et through which the anvil block 1G entends, and in order to reduce the vibrations and shocks which are ordinarily Vtiansmitted from the anvil block to the remaining parts the opening 17 is somewhat lgreater in size than the portion of the anvil block disposed within the opening whereby to provide a space therebetween.

The particular construction of the power cylinder. the mechanism for actuating thi` piston thereof, as well as the means for controlling the reciprocation of the ram. form no part of the present invention. ATherefore. these details of construction iave been purposely omitted for the purpose of sin'u'ilifying the drawings and the description. The mode of actuating and controllingthe operation of the ram in its reciprocation is well known to those familiar with the art, and is obvious from the drawings, without additional illustration.

lt is thus seen that the invention provides a simple, sturdy. and serviceable power forginghammer, in which the several partey will be maintained during service in the proper relative positions without danger of mis-alignment and the consequent undue stresses and bending strains incident thereto, one in which the construction of the main frame facilitates the mounting of the frame upon its support as well as theipower cylinder upon the upper portion of the frame itself, and on@ which when once properly installed will operate eliiciently with very little attention or cost of maintenance.

l claim: I

1. A rpower forging han'imer comprising a main frameI9 and a power 'cylinder mounted thereon, said frame having legs ila connected by a transverse member forming a continuation of the said legs, said transverse member being bifurcated and constituting a pair of spaced apart aprons.

2. A power forging hammer comprising a support, a power cylinder, and a single piece integral main frame interposed therebetween, the said frame consisting of spaced upright legs connected at their opposite ends by transverse members forming continuations of the said legs, one of the transverse members being bifurcated and constituting a pair of spaced apart aprons.

3. A power forging hammer comprising a support, a power cylinder, and a single piece integral main frame interposed therebetween, the said lraxne consisting of spaced upright legs connected at their opposite ends by transverse members forming continuations of the said legs, one of the transverse members being bifurcated and constituting a pair of spaced apart aprons with said power cylinder disposed between the aprons, the intermediate portions of said aprons being spaced from the powerV cylinder.

4. A power forging hammer comprising an anvil block, a' power cylinder, and a single piece integral frame interposed between the block and cylinder, said frame consisting of spaced upright legs connected at their opposite extremities by pairs of spaced aprons forming continuations of the said legs, the intermediate portions of said pairs of aprons forming bifurcations at the lower and upper extremities o the frame between which are seated the anvil block and power' cylinder7 respectively.

5. A power forging hammer comprising an anvil block7 a power cylinder, and a single piece integral frame interposed vbetween the block and cylinder, said frame consisting of spaced upright legs connected at their opposite extremities by pairs of spaced aprons forming continuations of the said legs, the power cylinder being disposed between the aprons at the upper end of the frame, and the aprons at the lower end of the frame straddling the said anvil block with their intermediate portions spaced therefrom.

In testimony whereof, I sign my name.

JOHN BYRON HENRY.

WVitness:

EDwrN O. JOHNS.

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