US2998766A

US2998766A - Seal press

Info

Publication number: US2998766A
Application number: US691646A
Authority: US
Inventors: Priesmeyer Charles
Original assignee: MEYER AND WENTHE Inc
Current assignee: MEYER AND WENTHE Inc
Priority date: 1957-10-22
Filing date: 1957-10-22
Publication date: 1961-09-05
Anticipated expiration: 1978-09-05

Description

C. PRIESMEYER Sept. 5, 1961 SEAL PRESS 2 Sheets-Sheet 1 Filed Oct. 22, 1957 R E Y E M S E R P S E L R A H C atet Patented Sept. 5, 1961 nors Filed Oct. 22, 1957, Ser. No. 691,646 6 Claims. (Cl. 101--3) The present invention relates to seal presses and more particularly to a die support and frame assembly for seal presses used by corporations, government agencies, notaries public and professional people. The present invention is an improvement upon my previous applications, application Serial No. 490,336, now U.S. Patent No. 2,937,590, and Patent No. 2,706,448, reference to which is hereby made.

Not only in oflices Where a number of paper embossing seals are kept but also in seal selling and servicing shops, it is highly desirable to have a seal press which readily utilizes any one of a number of die supports of different sizes and shapes. In ofiices several dies can be stored in small spaces for safe keeping and operated interchangeably in a single press frame. In supply shops, it is only necessary to inventory a single type frame and a wide range of seal presses having different dies can be supplied or interchanged quite rapidly. This can be done also in the field without need for returning any parts to the factory for use of precision instruments to provide proper die orientation and location of points of pressure application.

The present invention is characterized by building into readily removable die carriers the mechanism for properly locating them for the proper application of working pressures for each die of diiferent sizes for the purpose of interchangeable use in a single size seal press frame which delivers an embossing pressure over a predetermined area.

The invention is also characterized by a frame and die support construction and arrangement in which the die support is indexed in proper working position by readily disengageable elements through which the embossing pressure is transmitted.

An object of the invention is to provide a die support and pressure frame assembly in which the die support is capable of shifting to adjust its position with respect to the frame within limits determined by the element by which the embossing pressure is transmitted.

Another object of the invention is to apply an embossing pressure to dies through a rolling member which engages a self-opening die support in latching relationship whereby the engagement is maintained for proper operation at all times yet may be quickly released merely by momentarily moving the die support towards its closed position away from said rolling member.

The invention is further characterized by an arrangement wherein a die support may be inserted intolatch arrangement over a roller latch even when the die support is not in closed position and will assume its working relationship and carry all cooperating parts into their cooperating positions.

Other objects of the invention reside in the novel relationship of parts which are easily made, assembled, operated and repaired and which are readily interchangeable and ruggedly constructed for long and satisfactory operation.

These being among the objects of the invention, further objects and advantages will become apparent from the drawing, and the descriptions relating thereto, in which FIG. 1 is a perspective view of a pocket seal embodying the preferred form of the invention;

FIG. 2 is an exploded view showing the assembly of the two major components of the pocket seal shown in FIG. 1;

FIGS. 3 and 4 are side elevations partially in section showing two positions of the component parts;

FIG. 5 is a section taken on line 55 in FIG. 2, and

FIG. 6 is a perspective view of another embodiment of the invention as embodied in two elements of the pocket seal shown in in FIG. 1.

Generally, the invention contemplates a unitary assembly for the upper and lower dies with the supporting elements including a spring disposed to normally separate the dies. The unitary assembly is readily installed in a throated two-sided press frame having a handle or lever carrying a roller operable to close the dies and apply embossing pressure thereon. The upper die has a saddle member thereon engaging the roller in latching relationship as disposed between the side frames through their working movement as urged to maintain such engagement under the die opening effort of the spring. The dies are supported against turning in the frame by the spring extending far enough to be disposed also between the side frames at all times. Except for the latching interlock between the saddle and the roller, the unitary as sembly is free to move in the press frame and rests in supported relation on the bottom side of the throat opposite to the roller so that a single frame can receive any one of a number of dies of various sizes in proper working position interchangeably as located solely by said latching relationship.

Referring now to the drawings in further detail the frame 10 disclosed for embodying the preferred form of the invention comprises a flat stamping die formed to the U-shaped cross section shown wherein the sides 11 are parallel. The external convex surface of the rounded portion of the U-section provides a handle 12 with the rear end drawn downwardly as at 13 when die is formed so as to stress the stamping in more directions than one to make it rugged an easy to handle.

At the front end of the frame 10 the sides 11 are notched out as at 14 to form anoverhanging arm 15 and a lower arm :16 whose facing edges 17 and 18 respectively, and particularly 18, are smooth and straight over a major portion of their length at their outer ends. The two sides of the overhanging arm 15 are riveted together by a spacer rivet 20 which rigidifies and maintains the sides in exact spaced relationship. Other rivets may also be used if desired.

A handle 21 is pivotally mounted on the rivet 20 to move between the side frames. The handle is also a heavy sheet metal stamping die formed to a U-shaped cross section and rounded and embossed in both direction along its upper extremity to fit comfortably in the palm of a persons hand. At its front end as shown in FIG. 3 the sides are notched as at 22 to provide stop shoulders which engage a second rivet -23 to limit upward movement of the handle. A latch (not shown) may be provided to hold the handle in closed position, but since its particular form is not important such is not shown here in order to simplify the drawing. Such a latch is shown in Patent No. 2,706,447.

Between the sides of the handle 21 at its front end the handle carries a roller 25 journalled on a transversely disposed pin 26. The location of this roller is slightly to the rear of the rivet 20 and above the level thereof when in resting position so that downward movement of the handle 21 drives the roller arcuately downwardly with very little horizontal motion imparted thereto. In this connection it is to be noted that preferably the lowermost extremity of the roller remains at all times above the level of the edge 17.

The unitary die assembly 30 which is received between the roller 25 and edge 18 comprises a lower die support 31 stamped from heavy stock to provide the inner end portion 32 with parallel sides and preferably bent at 33 and perforated at 34 as shown in FIG. 3. The front end thereof is rounded as at 35 to receive in supported relationship the lower die 36, and to rest upon the edges 18 of the lower arm 16 in supported relationship therealong. Riveted to the rear end 33 of the lower die holder 31 as by rivets 37 is a substantially flat spring blade 38 whose front end 40 is perforated as at 41 (FIG. to receive the shank 42 of a headed member 43, which is peened over as at 44 to support a die receiving cup 45 whose construction is more particularly described in said applications, and in which the upper die 46 is received in supported relationship in proper orientation with the lower die. The upper end 47 of the headed member 43 is notched out to provide a saddle 48 with the front edge 50 preferably higher than the back edge 51. The saddle notch extends transversely with respect to the spring 38 and is adapted to receive the roller 25 therein with a rolling engagement between the front and back edges.

When in place, the front and back edges limit inward and outward movement of the unitary die assembly with respect to the roller while engaged therewith and this engagement is maintained under working conditions by the set in the spring 38 which urges the upper die and headed member upwardly.

The spring 38 and the rear 32 of the lower die support 31 are of a width slightly less than the distance between the two upper arms 11. Moreover, the height of the headed member 43 is sufficient to extend above the edges 17 and to be guided by the sides 11 to maintain cooperative contact with the roller 25 throughout its movement.

Thus when the unitary die assembly is in working position the bottom die support rests upon edges 18; the spring 38 cooperates with the sides 11 to maintain lateral orientation in the seal press frame; and, the working engagement between the roller 25 and saddle 48 is maintained as already mentioned.

To establish this relationship, the die ends of the unitary die assembly are finger pressed towards each other and slipped longitudinally into the throat 14 and then released (FIG. 2). The handle being free to move permits this movement and when released, the saddle engages the roller and forces the handle upwardly, it being appreciated that the roller rolls over the edge 51 if interference is experienced.

Then whenever the unitary assembly is to be removed, the die ends are again finger pressed towards each other and drawn outwardly, the roller being free with sufficient idling motion to clear the saddle edge 51'.

An arrangement is shown in FIG. 6 wherein the sides 11 are not depended upon to maintain engagement between the roller and saddle. Herein the roller 25a is shaped as a spool and the headed member 43a correspondingly shaped on its sides to be disposed between the flanges 25b on the spool for the purpose mentioned.

Thus a seal press is provided which is so simple and easy to handle that when the frame is held by gravity the die assembly can be removed with one hand.

Consequently it will be observed how the objects set forth are accomplished, and how various and further changes can be made to accomplish the purposes of the invention, the scope of which is commensurate with the appended claims.

What is claimed is:

1. In a seal press, a U-shaped frame having two sides forming a hand grip and notched out to provide a lower arm having upwardly facing edges that are parallel with each other and an upper arm having sides defining upper edges spaced from said lower edges, a handle pivotally mounted between the sides of the upper arm, a roller, means in said handle rotatably supporting the roller above said upper edges and slightly above the level of the pivotal mount when in resting position, a unitary die holder assembly comprising a lower die support and an upper die support interconnected to carry dies in cooperating relationship, one of said supports being an elongated spring urging separation of the dies, a boss carried by the upper die support and receivable between the sides of the upper arm, said boss being offset in a vertical direction on the upper face to provide a saddle notch receiving said roller in releasable latching relationship under the influence of said spring to locate and center said unitary die holder assembly perpendicularly under said roller in Working position, said supports being restrained against lateral movement when received between the two sides of the frame at the inner extremity of the notch but freely movable vertically and longitudinally within predetermined limits when the roller is received in the saddle notch, said cooperating roller and saddle notch constituting the pressure transmitting means and sole means for releasably latching the unitary die holder in the frame.

2. The combination called for in claim 1 in which said offset on the upper face of said boss comprises an upwardly extending shoulder at the rear of said boss defining a working area in part thereof and engaging said roller in releasable latching relationship to locate said unitary die assembly with said working area in engagement with said roller.

3. In a seal press, a frame having two sides throated to provide a lower arm having parallel uninterrupted edges defining a bed and an upper arm having overhanging edges spaced from said parallel edges, a handle pivotally mounted between the sides of the upper arm, a roller, means rotatably supporting said roller on said handle above said overhanging edges for movement through an arcuate path disposed substantially vertically, a unitary die assembly comprising a lower die support receivable on said bed and an upper die support, said supports being connected to carry the dies in cooperating relationship, one of said supports being an elongated spring urging the separation of the dies, a boss carried by the upper die support and receivable between the sides of the upper arm, said boss having upwardly extending shoulders defining a notch therebetween engaging said roller in releasable latching relationship under the influence of said spring to locate said unitary die assembly perpendicularly under said roller for movement therewith in said path during operation, said unitary die assembly being restrained against lateral movement when the supports are received between the two sides of the frame at the inner extremity of the throat but freely movable vertically and longitudinally within predetermined limits when the roller is received in the notch, said cooperating roller and notch constituting the pressure transmitting means and sole means for releasably latching the unitary die assembly in the frame.

4. In a seal press having a unitary die holder assembly including two dies and interconnected elongated die supporting elements one of which is a spring urging separation of the dies, a two-sided press frame throated to provide upper and lower supports for receiving the unitary assembly on the lower support with the elongated supporting elements freely received between the sides in longitudinally and vertically guided relationship, and a lever handle carried by the frame above said throat for operating the dies and having a portion which moves in a direction substantially normal to said lower support, the combination of a roller, means for mounting said roller on said handle portion for movement therewith along a path in said direction normal to said lower supports, and a saddle member on one of the supporting elements received upwardly between the sides of the frame and engaging the roller in a releasable latching relationship maintained by said spring to locate and maintain said dies in alignment with said roller in its pathof movement during operation of said seal press, said cooperating roller and saddle member constituting the pressure transmitting means and l a sole means for releasably latching the unitary die holder assembly in the frame at the inner extremity of the threat. 5. In a seal press having a unitary means for embossing paper including dies and interconnected die supports including a spring urging separation of the dies, a press frame having a throat defining a lower support and an upper support having spaced walls, a lever handle element, means for pivoting said handle element on the frame for movement about predetermined axis disposed above said throat for operating the dies, the combination of a first member on said lever handle element disposed rearwardly of said axis and driven downwardly by said handle element for transmitting force, a second member on said unitary means received upwardly between the walls of the upper support in the path of movement of said first member and driven thereby, one of said members having a convexly rounded contour and the other member having a concavely rounded contour mating therewith in releasable latching relationship, said first member being adapted to shift the position of said unitary means thereby maintaining a perpendicularity with respect thereto throughout movement of said second member thus providing a vertical closing pressure on said unitary means 6 in all positions during operation, said die supports being restrained against lateral movement 'but freely movable vertically and longitudinally within predetermined limits when the mating contours engage, said mating contours constituting the pressure transmitting means and sole means for releasably latching the unitary means in the frame. 7

6. The combination called for in claim 5 in which said mating contours include flange and groove convolutions supporting the second member in guided relationship upon said first member against relative lateral displacement of the said second and first members.

References Cited in the file of this patent UNITED STATES PATENTS Priesmeyer Apr. 19, 1955