|Publication number||US1306905 A|
|Publication date||Jun 17, 1919|
|Filing date||Jan 2, 1919|
|Publication number||US 1306905 A, US 1306905A, US-A-1306905, US1306905 A, US1306905A|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (2), Classifications (3)|
|External Links: USPTO, USPTO Assignment, Espacenet|
IVI'. H. JACKSON. SEAL.
APPLlcATloN HLED J.\N.2.1919A l SQg Patented June l?, i919.
MARSHALL H. JACKSON, or CHICAGO, ILLINOIS.
Specification of Letters Patent.
Patented June 17, 1919.
Application filed January-2, 1919. Serial N o. 269,257.
To all whom t may concern.'
Beit known that I, MARSHALL I-I. JACK- soN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Seals, of which the following is a specication.
My invention relates to that class of seals by which an impression is stamped upon a sheet or a superposed wafer, imprinting either by means of upsetting the paper itself to produce a design in relief or by means of an ink pad or ribbon to produce a design in color. The ordinary notarial sealis typical of the device in question.
In devices of this character an overhang of the seal head is necessary to provide for the insertion of the sheet to be operated on between the die and counter. The extent to which the sheet can be inserted and the resultant distance from the edge of the sheet at which the impression can be imprinted is necessarily limited by the degree of the overhang, and the permissible overhang is in turn limited by the requirements of rigidity and resistance to distortion under the stresses of blows incident to use.
Ordinarily, for these reasons, an impres sion can only be made adjacent to margin of the sheet, which in many instances is unsatisfactory. Furthermore, it frequently happens that where a wafer is used as a foundation for the imprint, difhculty is encountered in accurately placing the iinpression due to involuntary'shifting of the paper after positioning it upon the counter and as the die is descending, resulting in an unsymmetrical imprint. This is particularly objectionable in lega-l documents, certificates and the like.l z p To o'bviate both objections above noted I provide in a seal certain constructional features whereby exceptional overhang to permit of extended insertion of the papel' is combined with a supporting pedestal which protects from distortion, the same pedestal serving the additional function of clamping the inserted paper in position to prevent accidental shifting-while the imprint is being made. Y i
Other distinguishing constructional features will be hereinafter pointed out,A the advantages of which readily appear to those skilled in this art. M
In order'that the invention may be readily understood a preferred embodiment of the same is set forth in the accompanying drawings and in the following detailed description predicated thereon. It will be readily understood, however, that the features of the invention are susceptible of modification from the details of construction illuse trated as a basis for the description and without sacrificing the essential advantages of the invention, wherefore the drawing and description are to be taken in an illustrative and not in an unnecessarily limiting sense. In the drawings- Figure 1 is a top plan view of a seal embodying the invention;
Fig. 2 is a side elevation of the same;
Fig. 3' is a vertical section on the line 3-3 of Fig. 2; and y Fig. 4 is an end view of the seal illustrating the act of making an imprint by means thereof. i
Having particular reference to the drawings, the reference numeral 11 represents the base of a seal embodying the invention and having an enlarged end portion 12 carrying the counter 13. At the opposite end of the base an upstanding portion 1-1 has hinged thereto by means of a piiitle 15 the knuckled end 16 of an overhaiiging arm 17, the free end of which is enlarged to form the head 18 within which the plunger at 19 is guided by means ofthe pins 20. The plunger is provided with a central body portion 21 cored to provide a conical recess 22 and within this recess is frictionally seated a conical stud 23 forming a part of the die plate 24.-. A coil compression spring 25 is confined by means of the pins 2O about the recessed body portion'2l of the plunger, the said spring bearing upwardly upon the plunger and downwardly upon the head 18, whereby the plunger and its die are normally held in an elevated position but permitting the die to be forced into contact with the counter when the spring is stressed by a blow on top of the plunger.
-In order to hold the arm 17 with its head 18 elevated above the base 11 and the counter V12 as shown in Fig. 2, said arm 17 is supported intermediate its hinge 15 and its free extremity by means of a pedestal 26 the lower base line of which'is at substantially the level of the face of the counter 13 when thesaid pedestal rests upon the base 11.
The pedestal 26, it will be observed, performs a double function: First, it serves as a support for the overhanging arm 17 thus Vter and die mounted enabling such overhang to be increased over what would otherwise 'be practicable, permitting the supporting hinge joint 15 to be farther removed from the die and counter whereby to allow the paper to be inserted to a greater extent beneath the die and the imprint to be made farther from the margin of the paper. Second, this pedestal, after the insertion of the paper, bears upon the sheet indicated at 28, clamping the same between the pedestal and t-he base whereby to, absolutely prevent any accidental shifting of the sheet after its insertion and during the making of the imprint. To this end it is found advantageous of the pedestal shall be plane to avoid distortion or mutilation of the sheet although, obviously, the face thereof may be slightly7 rugose to emphasize the gripping action.
The particular manner of mounting the die in the plunger head facilitates a changing or substitution of a die and counter without necessitating the purchase of a new seal complete. The new die is readily associated with the seal by merely frictionally engaging its stud 28 within the conical recess at 22 of the plunger,'the lower ends of the pins 2O bearing upon the upper face of the die and thus serving to insure the positioning of the die in a plane parallel to that of the counter, and also to distribute the force of the blow applied to the plunger over the surface of the Vdie by means of the central frictional engagement of the body of the plunger with the peripheral engagement of the pins. This construction and arrange ment is also advantageous from the standpoint of a simplified mounting of the spring 25, the same being merely dropped into the space between the pins and the body portion 21 of the plunger before frictional engagement is effected with the die.
1. A notarial seal or the like comprising two arms connected at one end and one overhanging the other, a counter arm and a die carried by the other, the 'counfor relative movement toward and from each other, in combination with rigid means mounted on the arm carryA ing the movable element for clamping the sheet of paper inserted between the counter and die to prevent shifting thereof.
2. A notarial seal or the like comprising two arms connected at one end and one overhanging the other, arm and a die carried ter and die mounted for relative movement vtoward and from each other, in combination with a support for the overhanging arm intermediate its point of connection with the other arm and its freeend, such support retractible to enable a sheet of paper inserted between the die and counter to eX- tend inwardly beneath the said support.v
that the lower face carried by one a counter carried by one' by the other, the coun- 'Y 3. A seal or the like comprising a base, an arm hinged at one end to the base and overhanging the same, aV counter fixed on the base at that side opposite the hinge, a die mounted in the free end of the arm for reciprocation in line with the counter, and an unyielding support for the arm intermediate the hinge and die.`
4. A seal or the like comprising a base, an arm hinged at one end to the base and overhanging` the same, a counterfixed on the base at that side opposite the hinge, a die mounted in the freeend ofthe arm for reciprocation in line with the counter, vand a'support for the' arm intermediate the hinge and die, the base line of the support being substantially at the level of the die face, whereby a sheet inserted between the die` and counter and beneath the support will be held against displacement while being stamped.
5. A seal or the like comprising albase, an arm hinged at one end to the base and over-` hanging thev same, a counter fxedon the base at that side opposite the hinge, a die mounted in the free end of the arm for reciproeation in line with the counter, and a support for the arm intermediate the hinge and die, the base line of the support being plane and substantially `at the level of the die face, whereby a sheet inserted between the die and counter and beneath the support will beheld without mutilation against displacement while being stamped. V
6. A seal or the like comprising a base, a counter fixed thereon, a headed arm overhanging the base, a plunger, pins carried by the plunger and. guided within the head, the body of the plunger conically recessed, a die having a conical stud frictionally seated in the recess of the plunger, and a coiled spring confined by the pins about the recessed body of the plunger and bearing upwardly on the plunger and downwardly on the head.
7. A seal or the like. comprising a base, a counter `fixed thereon, `a headed arm overhanging the base in hinged relation thereto, aplunger, pins carried` by the plunger and guided within the head, the body of the plunger conically recessed, a die having aV conical stud` frictionally seated inthe recess of thev plunger and the lowerl ends of the guiding pins bearing against the upper face of the-die, and a` coiled spring confined by the pins about the recessed body of the plunger and bearing upwardly on the Vplunger and downwardly on the head.
8.V Aseagl or the like comprising a base, a counter fixed thereon, a headed arm overhanging the base in hinged relation thereto, a plunger', the bod-y of the plunger conically recessed, a die having a conical stud frictionally seated in the recess of the plunger, a coiled spring disposed about Vthe recessed body of the plunger and bearing upwardly upon the plunger and downwardly on. the
head and a support for the arm intermediate the hinged and free ends thereof.
seal or the like comprising a base, a counter Xed thereon, a headed arm overhanging` the base in hinged relation thereto, a plunger, the body of the plunger conically recessed, a die having a conical stud frictionally seated in the recess of the plunger, a coiled spring disposed about the recessed body of the plunger and bearing upwardly upon the plunger and downwardly on the head, and a pedestal support for the arm intermediate the hinge and free ends' thereof,
Copies of this patent may be obtained for `five cents each, by addressing` the the base line of the supporting pedestal be ing substantially at the level of the die face 15 whereby a sheet inserted between the die and counter and beneath the pedestal will be held against displacement while being stamped.
In testimony whereof I have hereunto signed my name in the presence of two sub- 20 scribing witnesses.
MARSHALL H. JACKSON.
LEWIS T. GREIST, MARY C. BROWER.
Commissioner of Patents,
Washington, 1). C.
|Citing Patent||Filing date||Publication date||Applicant||Title|
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|US3244093 *||Nov 16, 1964||Apr 5, 1966||Michael Vasilantone||Textile supporting means in stencil printing machines|