US1471687A - Seal press - Google Patents

Description

F. H. EYMAN SEAL PRES S Filed Jan. 3l. 1922 weer .FRANK-. EYMAN, OF OAK PARK, LLNOIS, ASSIGNOR T .ABT NOVELTY MANUFAC- TURING COMPANY, OF CHICAGO, ILLENOS, A CORPORATION 0F ILLINOIS.

SEAL Pense.

Application md Januarysi, i922. seriai iro. 533,135.

To @ZZ whom t may concern:

Be it known that I, FRANK H. EYMAN, a. citizen ot the United States, residing.` in

Park, in the county of Cook and State or Illinois, have invented certain new and useful lmprovements in Seal Presses, of

which `the following is a specification.

rwiliis. invention relates to presses having a frame provided with aws adapted to adm mit material therebetween to be operated upon, and having an operating lever for operating a movable seal, die, punch or other similar element for impressing or operating upon such material.

The principal object of the invention is to provide a simple, economical and elicient press for operating a seal member, die, punch or similar element to impress or periforate a sheet or other structure to be operated upon.

further object of the invention lis to provide a seal press or die press, or similar tool or mechanism having an operating lever and a seal, die, or similar element to be operated or pressed into Contact with a sheet or other structure to be operated upon, with pressure distributing or equalizing means adapted to enable the desired` uniform pressure to be obtained; and to provide simple and efficient means for locking the operating lever and the die or tool to be operated thereby in closed, folded or collapsed position when the press is not in use,and adaptedto enable the partsV to be released andv operated with facility 'and in an eflicient manner, and to be assembled or taken apart readily and itted accurately and with facility.

Other and further objects of the invention will appear ilroin the following description and claims, and from an inspection of the accompanying drawings, which are iliade a part hereof.

combinations, vand the details of construction and` arrangements of parte herein described and claimed.

In the accompanying drawiiigsn Figure l is a view in elevation of a seal press constructed in accordance with my invention; l

Fig. 2, is a plan view of the same;

iiig. 8 a view in central vertical section taken on line 3 3 of Fig. 2, looking inthe direction indicated by the arrows, and showllhe invention Yconsists rin the features,

" ing the lever and movablerdie in lowered .or closed position invfull lines, and the lever in its most extended widest open position in broken lines, as it would be when the Athe direction indicated by the arrows,

Fig. 5 is an enlarged detail view showing the upper iXed jaw or frame portion. to which the operating lever is pivotally connected, and sli-owing `the' relative positions of the elongated slot in the rigid jaw or upper fixed frame arm, and the angular slot in the lever, and the detent or catch mounted in said slots, for locking the lever in lowered position; and

Fig. 6 is anenlarged detail view of the pivoted and slotted portionof the operating lever. Y

ln constructing a press adapted to oper ate a seal, die, punch, or similar impression or perforating member, in accordance with my invention, I provide a frame lhaving f nected with the lower arm or jaw .2, and,

by preference, integral with the same.

' rlhe bottom portionor base ofthe frame may be of any ordinary and well known or desired suitable form, and may be provided wit-lian extension 4 adapted to form a convenient grip;` and it is obvious, and rwill be yreadily understood by those skilled in the art that the bottom portion or base of the frame may be of any suitable width and dimensions suitable for supporting the seal press in upright position on a frame or table, or other support, or may be of any form and dimensions suitable for enabling the seal press to be lgrasped'and supported in one hand, and operated thereby, while the sheet or materialfto be operated upon or impressed with the imprint of the seal or die is held in position between the opposed die members or impression members by the other hand of theoperator.

rllhe frame l, as well as the operating lever 5, may be formed of pressed sheetsteel, or other suit-able sheet metal, or. may be cast, ii desired. `But I pre-fer to, make `them of hollow light construction, but suiiiciently strong and rigid to withstand the stresses and strains to which they are subjected in use; and the device should be compact and portable. 1t is therefore made as light as possible consistent with the strength required and the uses to which the mechanismis to bev applied.

The upper frame arm or jawy 3 is, by preference, so kconstructed as to comprise side portions 6, 6 which are spaced apart and in parallel relation so as to provide a space 7 therebetween in which is mounted the 'operating lever 5 which has integral depending side flange portions 8, 8 located between and in engagement with the opposite inner side surfaces ofthe side frame members 6, 6, of lthe upper rigid trame arm or jaw 3, to which the operating lever is pivotally attaclled by means of a pivot 9 which is mounu ed kin the upper rigid trame arm or jaw 3, in suitable pertorations provided for receiving the opposite ends of the pivot. `The pivot 9 thus extends transverselyl across the space 7 and through pertorations in the depending side flange portions 8 of the operating lever5, at or near the forward end or" the lever and the corresponding extremity of the upper aw or frame arm 3, which thus pivotally supports the lever in position to be raised or extended, and collapsed or lowered, and locked in lowered or closed position and released and operated with facility, as desired.

The lower i'rame' arm or jaw 2 and the upper frame arm or jaw 3 are spaced apart Vso as to provide a space 10 therebetween adapted to admit the dies, seal members or other parts to be operated and supported in operative position between said upper and lower frame arms or jaws. y

A lower stationary die or seal member 11, which may bein the form of what is commonly known as a splash seal, or may be a cast seal member, if desired, is mounted upon the lower rigid frame arm or jaw`2 which has a suiciently wide, and in this instance, circularseal supporting portion or bed 12 on the upper surface of which the bottom die or seal member 11 is castor otherwise fixed.

An upper movable die member or seal 13 is movably supported directly over the lower die or seal member 11 by means of a resilient supporting member which, in this instance, is in the 'form ot a spring 141 having a lower spring arm 15 and an upper spring arm 16 formed in one integral piece and mounted on the inside ot and yinclosed by the hollow casing or frame 1, said spring arms being spaced apartl so as to provide a space therebetween adapted to admit la sheet ot paper or other material to be operated upon, and to permit the desired movement of the upper movable die 13. The lower spring arm 15 is rigidly secured at its forward extremity to the upper face of the lower frame arm or jaw 2 by means of a screw 17 anchored in the lower Jframe portion or base, and, by preference, extending through the lower jaw 2 and in secure rigid engagement with the torward end ci the spring arm 15 directly backr` of the lower die 11 and its circular support 12.

r1 sul'liciently wide, and by preference, flat and circular die-supporting casing 18 is movably supported upon and, by preference, formed in one integral piece rith the upper spring arm 1G otl the resilient diesupport 111, and provided with a depending marginal peripheral flange 19 which is suliciently flex# ible and of suitable dimensions to detachably engage, encircle the periphery ot, and securelyv hold in operative position the die or seal 13. Marginal slits or grooves 2O are cut in the ianged seal supporting casing 18 so as to afford the desired'ilexibility of the curved die-engaging flange portions 21, which are thus suiiiciently '.iexible, and are adapted to be clamped securely in detachable supporting engagement kwith the upper movable die or seal meml'ier 13 by means of clamping screw 22 mounted in the adjacent perforated peripheral projecting end portions 23 ot the flexible flange parts 21.

A crank Vpin or eccentric die-operating member l2st is provided on the operating;`

lever 5 and located directly over the central portion of the upper movable die 13 and its supporting casing 18, and forms a pressure-applying member intermediate the axial pivot 9 and the movable die member 13 and support 18. And interposed between the eccentric pin 2a and die 13 is a pressure-dis tributing and equalizing device comprising a :trame or carriage 25 having side frame portions 2G which areperforated and pro vided with transverse pins or axles 27, on which are mounted rotative anti-friction rollers 28 each oi which is in rolling Contact with the tlat upper surface or the upper die or Vdie supporting casing 18. These anti- 'lriction rollers are mounted on opposite sides oi' the transverse center oit the die-support 18 and ot the upper movable die 13 supported by the resilient member 14; and the `frame or carriage 25 is provided with a transverse notch, recess or opening 29 into which the pin 211 extends, so that, as the pin 24 is moved downward and forward in the arcof a circle the center of which is the center of the transverse pivot pin or axle 9., the pressure-distributing device or carriage 25 and rollers 28 will move downward with the die 13 until said die comes into contact with the stationary lower die 11, or with the upper tace of a sheet of paper or other material between the dies, and, in case any certain marginal portion of the movable die becomes engaged 4and yis stopped from further movement in the direction of the lower die in advance of any other portion,

or before the upper and lower dies are properly engaged in uniform parallel relation, the anti-friction roller 28 which `happens to be the one located over the higherportion of the movable die i8, or between the pin 24e and a portion of the upper movable die which is still out of Contact with or more widely| separated from the lower die than the portions rst engaged and stopped from further movement toward the lower die, will receive and transmit pressure from the pin 24 to the higher portion of the upper die and of the casing 18 and force such relatively high or temporarily lmore widely spaced apart portion of the upper die down into parallel relation to andin uniform engagement with the face of the lower die or of a sheet located between the upper and lower dies, to be operated upon or impressed with the outlines of the seal or die.

A uniform pressure will thus be applied tending to press all parts of the upper die downward toward and in parallel relation to and in uniform operative engagement with the adjacent: face of the lower die or of a sheet located between the upper and lower die members. And an even and uniform pressure and impression is thus obtained between the adjacent opposed surfaces of the upper and lower die members throughout the entire area or engaged surfaces thereof, or of the sheet located between such parallel uniformlyY spaced or parallel opposed surface portions of the dies which are,-of course, male and female', the outline on one having been impressed upon the adjacent opposed surface. of the other. lt is obvious that the form of the upper or original die may be impressed upon the lower die member while the latter is in a plastic condition, while the movable die is mounted in the position in whichit is to be used when the press 1s 1n operation for the uses for which it is intended; and the lower die,

after receiving the impression, is allowed to set while the upper die is firmly and rigidly held in engagement therewith and in proper parallel relation'thereto, and while the pressure is uniform so that the rdies areV in proper relation and ready for use.

Means for limiting the movement of the operating lever, and of the upper or movable die or tool to raised, open, or extended po# sition, and for locking` the same in lowered closed 'position is provided, as follows:

ln one or both of the sides of the operating lever 5 is provided an Varngrlarsegmental slot or series of communicat gslots comprising an inner segmental slot portion ffl/l, and an outerV segmental slot portion 3l both curved and having the form of arcs of circles the centers 'of which is the Vcenter of the pivot pin 9, and the axis about which the operating lever 5 is adapted to swing when in operation. The upper extremity of the outer curved segmental slot 3l is connected with i" inner slot El@ by mea of ar connecting slot portion which the level 'f the bott-oni extremity of said inner slot 30, the upper portion of the outer slot 3l, and the lower portion of the slot 30 being separated by a division wall or'partition 34. rlhe lower extremity of the outer segmental slot 3l extends downward beyondthe lower lextremity of 'the inner slot above described. The connecting slot yportion 82 constitutes ank in clined connecting slot; and said slot Si? and the outer segmental slot 3l are employed only when the operating lever istobe raised to its extreme extended or raised position, for the purpose of assembling the parts, or taking the mechanism apart for repairs or vfor replacing some part, or for other or similar purposes. ll he inner segmental slot 30, however, is used whenever the ogemting` lever is to be operatedq and whenever said lever is to be released from its lowered dieclosing position, or from locked or latched closed position, and is provided with an upper outwardly extending radial slot port-ion 3G which extends outward radially from the upper extremity of the slot 30, and has a top radial wall 37 extending from the upper extremity of the Liner segmental Slot il() to the upper outer extremity 38 of the radial slot portion 36 and of the series of connected slots as a whole. The outer portion 38 ofthe upper radial slot portion merges into the inner slot- 30, and in this connection,

it should he noted that an inclined or angular wall 39 extends downward and inward at an incline from the outer extremity of the said upper radial slot portion 36, 38 tothe slot BO, and merges with the curved segmental outer wall portion Ll() of the slot 30 at a point above the ridial connecting -slotBQ already described. f

,5in Y elongated inclined approximately radial slot Ill is provided in the upper frame arm or upper fixed jaw 3 of the main frame of the device,` and has an upper wall 4t2l and a lower wall 43 in parallel relation to each other and spaced apart so as to admit therebetween a detent member all, which, in this instance is in the form of a. transverse. headed pin slidably mounted in the slot or slots al in the side or sides of the upper jaw 3. This slidable latch member or detent dei extends through the slotted portion of the lever 5, and is adaptedy to engage kthe parallel walls 4t2, 43 of the radial elongated slot il in the upper rigid frame arm, and any wall of any desired portion of the series of connectedslots BO, 8l. S2, 36 in the lever 5, any and' all of whichare adapted to be brought into radjacent overlapping relation to the elongated slot al, the inner portion of which is adapted to overlap the adjacent innertsegmental slot 30, and the el is readily movable trom one end to the other ot the elongated slot in the upper trame arm 3, that when said detent member is at the inner end ot the approximately radial elongated slot and in position to. eX- tend through the inner upper curi'ed segr- Vmental slot or slot portion et the compound angular segmental slot in theside or sides et' the operating lever, the operating lever will be tree to move upward to diebpening position, and the movable die will beA raised by its resilient support-ing means to open position, in which position the die members are adapted to admit a paper or sheet oi material to be operated upon therebetween, and that the operating` lever is also tree to move downward to die-closing position, either with a sheet between the dies to be impressed, or without anything between the dies.

It should also be noted that, in castingv a splash die or counter die upon the stationary support, or in proper stationary operative position upon the lower trame arm or jaw 2, which may be accomplished by placingi metal in a suiiiciently hot plastic condition upon the stationary die-support, and then operating' the lever 5 and thereby pressing` the movable die into contact with the plastic molten or properly heated die-terminav metal, and holding the movable die in .its proper desired lowereddie-closing' position while the plastic metal is allowed to'cool and set, the thickness of the stationary die members thus cast upon the rigid trame and in the position in which they are to be used, may vary in thickness; and it becomes high lyk desirable and important that means be provided whereby the movable die, and the operating lever, may be secured, latched` or locked in proper die-closing` position, and in proper engagement with the stationary die member, whatever its thickness may be.

The upper portion of the segmental slot in the operating lever is therefore made wider at the top and tapered from the top extremity downward to a. point above the level of the angular intermediate ronnectinp; slot, and at some distance. above the bottom extremity of the inner segmental slot 80. The upper tapered or angular expanded portion ot the upper inner segmental slot 30 thus has an outer rearwardly and upwardly inclined side wall 39 which is in oblique relation to the approximately or substantially radial longitudinal side walls oi" the elonrrated slot il in the upper tram-e arm 3, and is adapted to engage the rear side. of the detent pin while the opposite side ot 'said pin is engaged by the upper approximately radial longitudinal side wall ot said elongated slot. rlhe pin thus extends through the elongated slot and between the upper longitudinal side wall of said elongated slot in the upper trame arm and the said oblique inclined rear wall 39 oi the upper tapered portion etti-e seg 'rental slot 3() inthe operating lever. s the wall 39 is in oblique relation to the opposed upper longitudinal substantially radial side wall ot the elongated slot stl it will be readily seen that the operating lever 5 may be stopped in its dowmvard movement at any one ot a multiplicity ot relatively higher or lower positions, any one ot which may have been reached by said lever when the stationary seal has been properly engaged and cast, and that, although the stationary seal may be relatively thick in one instance, or relatively thin in another, and the position ot' the operating lever may vary according to the varying` thickness ot stationary seals thus cast, or ist in any other manner, the lever and the movable seal may be secured or locked accurately in exactly the desired position, and with tacility, by simply moving the detent pin rearwardly, longitudinally or' the elongated slot ll until it engages a adjacent portion otl the oblique wall 39 ot' the segmental slot 30 in the operating lever. rEhe pin being thus simultaneously in engagement with the upper longitudinal side wall of the elongated slot 4l, and the rela tively oblique wall 39 ot the slot in the operatinnlever, when said lever has reached any desired one of a multiplicity ot possible die-closing' positions which the lever may reach in the operation ot casting the stationary die, or in causing the movable die to properly engage the` stationary die when in die-closing position, it is evident that the lever is thus secured or locked in such desired die-closing' position, although said po sition may vary accordingto the thickness ot the stationary or counter die, as already suggested.

It will also be readily understood by those skilled in the art, that the lower angular and outer segmental slot or slot portion is adapted to admit the detent pin and permit the free movement of the operatinga lever to its uppermost extended position, wheneif'er the detent pin is moved into theI radial intermediate connecting; slot and outer lowery segmental slot. Convenient means is thus provided, for assembling, releasing, removing, and replacing the movable die, its supporting;- and operating` parts, as desired, either in the making of the device and assembling the parts in the rst instance. or in making repairs, or removingF and replacing any part or parts for any reason, or for any purpose, as circumstances may require.

'ill

Veo

it will be readily understood by those slrilled in the art that, while l have described one way ot making the low-er or stationary die, it. as well the movable die 13, may be made of any desired suitable material and inanj7 desired ordinary and well known manner; and the lower die is ordinarily first, in any suitable ordinary manner and or" any suitable4 metal or ther n aterial, and then placed in its proper position upon the support or iframe 1. lt is very desirable. however, that the movable ie 13 should he flatv on its top or back race, and prefer that it should be detachbly mounted in the flat-topped casing` 18, -which may be formed in one integral piece with the die supporting and guiding spring lil, or attached to the upper :tree end of the latter in any suitable manner, removably or otherwise, and by any suitable securing means, such as rivets, or by welding.V And the spring arm 15 is provided with lateral projections or arms 416 on opposite sides of the forward extremity or end portion of said spring;- arm, each of said lateral projections 46 beine,` set into and in snugly fitting, preferably detachable, engagement with a corresponding; tightly fitting slot or recess 47 in the corresponding sidewall of the trame 1. The spring; le thus comprises upper and lower spring' arms 16, 15 which are formed in one integral piece or spring metal, and which have their converging eX- tremities iioxibly connected by an integral connecting loop 48 formed by bending a strip of spring metal or resilient material upon itself. rl`he spring arms 15, 16, and integral connecting loop thus formed and mounted, extend inside of the trame and ber in the direction ot the lengthv ot' theV actuatinglever 5, and is in nonrotative rocking engagement with the eccentric pressure-applying pin or member 24 on said lever, and in operative engagement-with the die-support 18 orvtheilat top face of the movable die, and movable at an angle with respect to the direction of the pat-li of movement of the movablevdie member; and said shoe is detachably supported in engagement with the pin' or eccentricY pressure applying means 24, andbetween the latter and the movable die member, and acts vto transmit and distribute pressure applied by the action of the lever and its eccentric pin Qd, through the medium ot' the pressuredistributing` shoe, to the movable die member.

The inclined rear wall oi the slot portion is adapted to enablethe pin 44 to be automatically pressed or caused to move forward from the slot portion 31, through the slot portion 32 and into the curved slot portion 30 in response to the down vard movement ofthe lever 5 whenever the pin 24 happens to be in the slot as it is, for instance, when the lever 5 is raised to its hinhest position in assembling,- the parts, as indicated in broken lines in Fig: 6.) The accidental shearing of the pin 1141 is thus obviated.

l claim: Y

y1. ln a press ot `the class described, the combination of a frame, a stationary die member mounted in the frame, an actuating' lever pivotally mounted on the vtrame and provided with eccentric pressure-applying means on and in eccentric relation to the axis ot said lever, a movable die member located adjacent to the stationary die mem-r ber, and a,pressure-distributing shoe mem` ber in rocking non-rotative engagement with said eccentric pressure-applyingmeans on said lever and movable at an angle with respect to the path of movement ot said movable die member, said shoe being located between the leverand said movable die member and extending .on opposite sides ot the center ot the movable diemember in a direction lengthwise ot said lever.

2. In a press of lthe class described, the combination of a frame, a stationary die member mounted in the'frame, a pivot-ed operating lever mounted in the frame, yeccentric pressure-applying means on and in eccentric relation to theaxis ot the operating lever, a movable die` an oscillating shoe member in operative engagement with and extending on opposite sides of the axis or said eccentric pressure-applying means, and movable between lever and said movable die an angle with respect to the path of inovemnt of the latter.

i3. In a press of the class described, j*he combination 'of a trame, a stationary die member mounted in the trame.r apivcted` operating lever mounted in the frame, eccentric pressure-applying means on and in eircentric relation to theafis of thefoperating lever, a movabledie, andan oscillatino; shoe member in operative engagement withk said eccentric pressure-applying; means and er;tending on opposite sides of the airis of said lever and in operative engagement with said movable die', member on opposite sides of said axis. t

' 4i. ln a press of the class described,` the asy combination of a frame, a stationary die men'iber 'mounted in the frame, a pivoted opera-ting lever supported by the frame, an eccentric pressiire-applying member on and in eccentric relation to the axis of the operating lever, a movable die member mounted in the frame and movable toward and from the stationary die member, and a non-rotative pressure distributing member located intermediate said eccentric pressure-applying member and the movable die member and extending across the center olf and movable at an angle with respect to the path of movement o't said movable die member.

5. ln a press of the class` described, the

combination of a Jtrame, a stationary dief member mounted in the frame` a pivoted operating lever supported by the frame, an eccentric pressure-applying member on and in eccentric relation to the axis of said lever, a movable die member, a die-supporting member in supporting engagement with the movable die member, and a non-rotative pressurc-distributing shoe in engagement with and extending on opposite sides of said eccentric pressure-applying member and between the latter and the movable die and across the central portion of the movable die. 6. In a press of theclass described, the combination of a frame, a stationary die member mounted in the frame,.a pivoted operating lever supported by the frame, an eccentric pressure-applying pin on and in eccentric relation to the axis of the operating lever1 a movable die, resilient die-supporting means in supporting engagement with said movable die, a non-'rotative pressure-distributing shoe in engagement with and extending` on opposite sides of the said eccentric pin and movable at an angle with respect to the path of movement of the movable die. and anti-friction means on said shoe and located on opposite sides of said eccentric pin and adapted to permit the shoe to move at an angle with respect to the path ot movement ot' the movable die member.

7. In a mechanism of the classdescribed, the combination of a frame, a stationary die member mounted in the frame, a movable die, an operating lever pivotally mounted in the frame and in operative engagement with said movable die, an elongated slot in said frame and having opposite longitudinal side marginal walls disposed in approximately radialr relation. to thevaxis of the pivoted lever, said operating lever having a slot provided with a marginal wall disposed obliquely withrespect to one of said approximately radial Vside marginal walls of said elongated slot in said frame, and a det-ent adjustably mounted in said last` mentioned elongated slot and extendingbetween and in engagement with a longitudinal side marginal -wall of said elongated slot in saidV trame and with said oblique marginal wall of said slot in said operating lever, for securing the lever in die-closing position.

8. In a mechanism of the class described, the combination of a iframe,I a stationary die member mounted in the frame, a movable die, resilient supporting means in supporting engagement with the movable die, an operating lever pivotally mountedr in the trame and in operative engagement with said movable die, an elongated slot in said frame and having opposite longitudinal side marginal walls in aproximately radial relation to the axis of said operating lever, said operating` lever having a segmental slot provided vvith opposite side marginal walls extending at an angle with respect to the longitudinal side walls of said elongated slot in said frame, and a detent pin slidably mounted in and movable longitudinally of said last mentioned elongated slot, and extending between and in engagement with a longitudinal side marginal wall of said elongated slot in said frame and an opposed longitudinal side marginal wall o said segmental slot in said operating lever, for locking the lever and thereby the movable die in die-closing position.

9. In a mechanism of the class described, the combination of a frame, a stationary die member mounted in the frame, a movable die4 an operating lever pivotally mounted in the trame and in operative engagement with Vthe movable die, means for yieldingly supporting the movable die` an elongated slot in said 'trame and provided with opposite longitudinal marginal walls in approximately radial. relation to the axis of said pivoted operating lever, a segmental slot in the operating lever, said segmental slot having side marginal walls extending at an angle with respect to the longitudinal side walls oi said elongated slot in said trame, a detent pin slidably mounted in and movable longitudinally of said elongated slot in said frame and adapted to extend between and in engagement with the walls of said segmental slot in said levery for locking the lever and the movable dio in die-closing position, and an angular segmental slot communicating with and extending endwise beyond the end of the first-mentioned segmental slot in said lever and adapted to receive said slidable detent pin when said lever is moved to its outermost extended position upon its axis, to permit the movable die and other parts to be assembled, released, removed, and replaced, as desired.

Signed at Chicago, in the county of Cook and, State of illinois this 25th day of J anuary, 1922.

FRANK H. EYMAN.

Witnesses: Y

HARRY I. CROMER, Femina. BLUEMER.

Images