US1512476A - Seal press - Google Patents

Description

ct. 21 192%d 1,512,476

G. A. .,v. MEYER SEAL PRES S Filed AprilY 30 1923 2 Sheet-8heet 2 U Humm MMM! Patented Oct. 2l, 1924.

UNITED STATES PATENT OFFICE.

GUSTAV A. J. MEYER, 0F CHICAGO, ILLINOIS, ASSGNCR TG MEYER 5c WENTI-IE, A CO- PARTNERSHIP CONSISTING GF GUSTAV A. 3l. MEYER AND HERMAN H. WENTHE, OF

CHICAGO, ILLINOIS.

SEAL PRESS.

Application filed April 30, 1923.

To all whom t may concern."

Be it known that I, GUsTAv A. J. MEYER, citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have inventedcertain new and useful Improvements in a Seal Press; and I do hereby 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 maire and' use the same.

My invention relates to seal presses and in its general objects aims to provide highly desirable features of construction which will be particularly suitable for use on pocket types of seal presses. More particularly, my invention relates to seal presses of the general type in which a movable die is carried by one end of a spring and is forced toward the other die (or socalled counter) by means of a lever. For a press of this general type, my invention provides a cheaply manufactured and effective means for mounting the stationary end of the spring, provides a novel arrangement for securing the movable die to the free end of the spring and for insuring an exact registry of the movable die with the counter after the movable die has been detached for any reason from the spring, provides eHective means associated with the spring for receiving the pressure applied by thel lever, and provides novel, positive, and easily manipulated means for latching the lever in lts depressed position.l Still further and also more detailed objects of the invention will appear from the following specification and from the accompanying drawings, in which- Fig. 1 is a side elevation of a seal press embodying my invention, showing this as it appears with the spring holding the movable die and actuating lever in their raised positions, and with a portion of the plate supporting the lower die portion cut away.

Fig. 2 is a plan view of the same embodiment.

Fig. 3 is a central, vertical and longitudinal section through the same embodiment, taken along the line 3-3 of Fig. 2.

Fig. 4 is a fragmentary vertical section taken along the same plane as Fig. 3 but Serial No. 635,566.

looking in the opposite direction and showingthe lever in its depressed and latched position.

Fig. 5 is a horizontal section taken along the line 5 5 of Fig. 2.

Fig. 6 is a plan view of the plate which supports the lower die portion (or socalled counter) of the press.

" Fig. 7 is a perspective view of the supporting member which connects the frame of the press with the spring.

Figs. 8 and 9 are perspective views of two other types of supporting members, each adapted for use with two pins spanning the opposed sides of the frame or body member of the press.

Fig. l0 is a transverse vertical section taken along the zigzag line lO-lO of Fig. l and showing the latchin g means and spring washer employed for resisting movement of the latching means, this view being taken with the lever in its depressed and latched position.

Fig. l1 is a plan view of another form of spring suitable for use with my invention, namely one having a notched indicating tip.

In the embodiment of the drawings,"the seal press of my inventioncomprises a body` or frame member desirably formed of a piece of sheet steel bent upon itself to present parallel vertical sides l and 2 connected by a bottom 3 of rounded section, these sides being notched at their forward end to present an opening through which access is afforded to the cooperating' die portions. The lower of the jaws thus into which each side portion is divided by the said notch is provided with an upwardly directed prong l adapted to project into a corresponding opening 5 in a presser plate 6 which supports the lower die portion and which plate is secured to the frame by expanding the said prongs after the presser plate has been slipped over them.

Mounted within the frame adjacent to the lower and rear end thereof is a supporting member which is secured to the rear end of a spring 7 by any suitable means, such as a screw S threaded into the suporting member. To secure the supporting member to the body or frame, l desirably employ a pin or rivet 9 spanning the sides l and 2 of the CII said frame and having the supporting member pivoted thereon, and I also provide suitable means for preventing the supporting, member from rocking` about its said pivotal mounting during the normal operation of the press. F or these general purposes, I may employ a supportingA member arranged after the manner of Fig. 7, namely with a top 10 into which the screw 8 is threaded, formed integral with a pair of perforated ears 11 depending from its opposite sides and perforated for slidably receiving` the pivot pin 9, these ears being adjacent to the rear end of the supporting member while the forward end of the said member thereof is bent downwardly to afford a riser portion 12 resting upon the bottom 3 of the frame of the prese yIfhe spring 7 secured to the end of this supporting member desirably has a curved intermediate portion connecting its statienary rear end with an enlarged head portion 13 which has an upwardly directed perforated boss 14 formed from the same. This boss is threaded on its interior to receive the usual threaded stem 15 of the engraved die lvtwhxieh is to be used with the press.

'Iov move the head 13 of the spring and the movably supported die portion 1G downwardly, I employ presser means, desirablv comprising arlever 17 pivoted on a nin spanning the upper jaws of the frame, this lever bei-ng limited in its upward swinging' movement by a stop pin 19 also spanning' he said two jaws and disposed for enggag the Vupper forward end portion 20 of the lever, VrIhe lever desirably has inverted lJ-shaped cross section and has its two sid connected near the bottom of their forwarc1 endsby a pin 20 carrying a thrust roller 21, rIhis roller is normally in continuous en gal-glement with a cap 22 which is telescopcd upon the said boss on the spring.

When the lever is depressed, he d wnward pressure exerted through the roller 21 yon the cap 22 forces the forward end of the spring Vdownward while correspondinffly bending the curved portion of the sprn j which connects the head 13 of the spring` with the .part fastened to the supporting; member. When the pressure on the .lever is relaxed, the resiliency of the spi ic raises its head together with the thrust r p 22 and s vings the lever upward until its forward ecge 20 engages the stop pin 19. By initially forming the spring' so that it will tend to raise its head portion even higher than the. position shown in Fig. 3, I cause the stop pin 19 to cooperate with the lever and with the resiliency of the spring` in maint-tainingl the riser 12 of the supporting member in engagement with the bottom of the frame cir body of the press. In other words, these elements cooperate for preventing a pivotal movement of the supporting member about the pin 9, so that this single pin is ample for securing the supporting member in its operative position.

In practice, the stationary die portion or counter 23 is usually formed upon the supporting plate i after the movable die portion 1G has been attached. to the supporting spring, thereby insuringi proper alineinent of the two coopeiating` die pmiions. By removing the fastening,` screw S, the spring` together with the movable die pol tion can instantly be removed from the press and the movable die portion can bc un screwed from the spring` if this should he desired for any reason. After such a dctaching, it is usually diilicult to screw the movable die portion back upon the spring in a position in which it registers exactly with the counter 23. To expedite such an exact realining of the die portions. I desirahly provide the head 13 of the spring with an indicating portion 2d liavingi` a pointed tip adapted to aline with some point on the iriphery of the attached die portion 11G. iliy markingthis attached die portion opposite the tip of the indicating part 2l, and turn ing the movable die portion during its ruattaching` until the mark alines with the said tip, the press nmnufacturer or repair man has simple means for insuring an exact realining of the die portions.

To hold the lever in a depressed position so to reduce the space required for packingl the press, I provide suitable laurhingr; means, desirably in the form of a latehinur member movably mounted on the frame of the press and adapted to engage a finger carried by the lever. For this purpose, I am here showing' the lever as having one side equipped with a downwardly directed arm terminatingr in a linger which is adapted to be overhang by a latching.; pin 2G movably mounted on the adjacent side of the body of the press. This latch pin 26 desirably extends through a slot 27 in the body of the press and is fastened at its outer end to a button 28 which has its surface knurled so as to afford a ready finger-hold. By securingv the ino fable latchinnr member to the left-hand side of the frame and formA ing the finger on the corrcspondiner side of the lever, I dispose the button 2S so that it can readily be manipulated hy the thumb of the hand grasping the press, thus permitting the user to slide the latchingr nunuber into or out of its releasing' position while hc is holding: the press in the usual manner. I also desirably interpose a friction washer 29 between the head 28 of the latchin; r member andthe adjacent side 1 of the frame of the press so as lto hold the latehing member in any position to which it has been dig;- itally moved.

However, while I have illustrated and described the novel features of my invention in an embodiment including highly desirable details of construction and arrangement, I do not wish to be limited to these, as many modiiications might obviously be made without departing either from the spirit of my invention or from the appended claims. F or example, instead of depending on the resiliency of the spring to prevent a pivotal movement of the supporting member about the pin 9, I may employ a supporting member equipped also with a companion pair of ears 30 near its forward end, after the manner of Fig. 8, in which case I would employ a second fastening pin or rivet extending through these ears 30. Or, I may employ a supporting member consisting of a fiat strip of metal recurved at both ends after the manner of Fig 9 so as to hook over a pair of fastening pins 9 and 31 after the manner shown in F ig. 9. So also, instead of forining the spring with a head 13 of a smaller diameter than the movable die portion 16 and providing an outwardly directed and pointed tip 24 on this head, I may provide the spring with a head 32 of a diameter larger than the movable die portion and may provide this with an acute-angled indicating notch 23, after the manner of Fig. 11 for facilitating the alining of the parts as heretofore described.

I claim as my invention 1. A seal press including a pair of relatively movable dies, and a spring member to which one die is threadedly attached, the spring member having an indicating portion adjacent to the periphery of the die attached thereto.

2. A seal press including a frame comprising a pair of sides connected by a bottom; a stationary die fast on the frame, a movable die, a spring fastened at its forward end to the movable die; and supporting means secured to the rear end of the spring, the said means comprising a member pivotally connected to the frame and disposed between the said sides and having a portion engaging the bottom of the frame to prevent movement of the said member in one direction about its said pivotal connection.

3. A seal press including a frame comprising a pair of sides connected by a bottom, stationary die fast on the frame, a movable die, a spring fastened at its forward end to the movable die; and supporting means secured to the rear end of the spring, the said means comprising a pin spanning the sides of the frame, and a member independent of and fastened to the spring and pivoted on the pin and having a portion fo-rwardly of the pin engaging the bottom of the frame to prevent pivotal movement of the member in one direction about the pin.

et. A seal press comprising a body or frame member, a stationary die fixed thereon, a supporting member pivotally mounted within the body member, a spring secured at its rear end to the supporting member, means carried by the supporting member and engageable with the bottom of the body of the member to restrict downward movement of the supporting member, a movable die carried by the forward end of the spring, a lever pivoted on the body member and having a portion in continuous operative engagement with the spring, and stop means carried by the body member for limiting the upward movement of the lever, the spring being so formed that its resiliency cooperatcs with the said stop means in preventing pivotal movement of the supporting member about the pivotal mounting of the latter.

5. In a seal press, a frame, a lower die on the frame, a spring connected at one end to the frame and having its other end overhanging the die, Said spring having an, upwardly extending and interiorly threaded boss, an upper die having a stem threaded into the boss, a. cap engaged over the boss periphery and extending over the upper end of the boss and the upper end of the stem, and a lever pivoted to the frame and having a part engaged with the cap.

6. In a seal press, a frame having spaced sides and a bottom connecting the sides, a lower die on the frame, an upper die, a member having perforated side parts engaged with and between the frame sides and having a top, a pin passed through the frame sides and through the perforatio-ns of the side parts of the member, means to hold the member against downward movement about said pin, a spring independent of said member and being connected at one end to the upper die and at its other end to the top of said member and a lever on the frame for operating the upper die.

Signed at Chicago, Illinois, April 21st, 1923.

GrUS'IACi A.. J. MEYER.

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