US2078094A - Stamping machine - Google Patents

Description

Apri] 20, 1937. H OELB'AUM 2,078,094

s STAMPING MACHINE Filed Feb. 25, 1936 2 Sheets-Sheet 1 INVENTOR Henry OeIbaz/m April 20, 1937.

H. OELBAUM STAMPING MACHINE 2 Sheets-Sheet 2 Filed Feb. 25, 19156 INVENTOR Hemy Oelbdunz BY ATTORNEY Patented Apr. 20, 1937 UNITED STATES STAMPING MACHINE Henry Oelbaum, Cranston, R. I., assignor to Hassenfeld Bros. Inc., a corporation of Rhode Island Application February 25, 1936, Serial No. 65,569

2 Claims.

This invention relates vto new and useful improvements in a stamping machine.

'I'he invention has for an object the construction of a stamping machine which is particularly adapted to stamp names. or symbols upon pencils or other objects.

More specifically, the invention contemplates, in a stamping machine, the provision of a horizontal, hollow casing having a plurality of spaced parallel slots extending downwards from the top side to the front side, and a plurality of control discs with peripheral teeth rotative upon a shaft extended through the casing and having fingers projecting laterally and transversely and extending through said slots by which the discs may be adjusted.

Still further the invention contemplates the use of printing discs having peripheral teeth meshing with the peripheral teeth of the control discs and having letters or symbols on the ends of said teeth by which the printing operation is accomplished.

Furthermore, the invention also proposes the association of a printing table and an inking means with the mechanism mentioned in the previous paragraphs.

Another object of the invention is the construction of a device as described which is simple and durable and which may be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:--

Fig. 1 is a perspective view of a device constructed according to this invention.

Fig. 2 is a transverse vertical sectional view taken` on the line 2-2 of Fig. 1.

Fig. 3 is a horizontal sectional view taken on the line 3--3 of Fig. 2.. v

Fig. 4 is a rear elevational view of Fig. 2 looking in the direction of the line 4-4 thereof.

Fig. 5 is a horizontal sectional view taken on the lines` 5-5 of Fig. 2.

Fig. 6 is a fragmentary vertical sectional view 50 of a modified arrangement for operating the printing table.

The stamping machine, according to this invention, includes a horizontal hollow casing I0 having a plurality of spaced parallel slots II ex- 55 tending downwards from the top side Illa of the (Cl. lOl-96) casing to the front side Illb. .A shaft I3 is mounted coaxially through the casing and supports a plurality of control discs I4. These control discs have peripheral teeth I5 engaging with the peripheral teeth I6 of a plurality of printing discs I1. The control discs I4 are provided with projecting fingers I 4a extending through the slots Il by which the printing discs I'I may be adjusted.

The hollow casing I0 is formed from a pair of end discs Ic which `are secured by fastening elements I8 upon the sides of a printingframe. This printing frame comprises a pair of spaced vertical angle irons I9 secured at their bottom ends upon a horizontal base 20. The shaft I3 is mounted between the end discs Ille. The spaced slots Il are formed by a plurality of strips IUd which form a part of the hollow casing. These strips are secured at the top ends upon a transverse support 2| mounted between the discs Ic. At the bottom ends the strips Id are secured to a support rod 22 also mounted between the end discs I0c. The spaces Il are produced by the fact that the strips Illd are spaced from each other.

Each of the strips Id are imprinted with letters or symbols 23 corresponding with similar letters or symbols upon the printing I1 as hereinafter further described.

'Ihe discs I4 are held in suitably spaced positions by a plurality of spacers 24 which are mounted between the discs and are supported by the shaft I3 and a support rod 25 mounted on the angle irons I9. The end discs Illc are formed with front lugs Illcc and the printing discs I1 are g mounted between these latter-mentioned lugs. The printing discs II are selectively rotative on a tubular member 25 which is iixed between the lugs IUcc. Collars 26 (see Fig. l) are mounted upon the tubular member 25 at the ends of the printing discs and serve to hold them against longitudinal motion. An electric heater 25a is mounted with the tubular member 25 to heat the printing teeth I6. This hea-t is necessary when certain types of inked or prepared transfer ribbons are used.

A pair of collars 21 are mounted upon the shaft I3 at the sides of the control discs I4 and serve to prevent the control discs from shifting. The control discs are also held in their proper positions by the projecting fingers I4a.

In Fig. 3 the fingers Illa are shown projecting from the discs and extending both laterally and longitudinally so as to extend out from the proper slots I l. There is one slot for each of the fingers.

65 termediate portions of the rods 54.

'Ihese slots are spaced much further apart than the spacing of the control discs and it is for this reason that the fingers I4a must extend laterally as Well as longitudinally to engage through these slots.

A means is provided for holding the control discs I4 in adjusted positions. This means includes a plurality of teeth 28 on portions of the peripheries of the discs I4 engaged individually by springs 29. These springs 29 are supported upon a bar 30 mounted between the frame I9.

An auxiliary mechanism is provided for locking the control discs I4 in desired adjusted positions. This means consists of a wide pawl 3| (see Figs. 2 and 4) supported upon a shaft 32 which is-rotatively mounted on the frame I9. One end of the shaft projects and is provided with a handle 33. It is possible by moving this handle to engage or disengage the pawl 3I from the teeth I5.

A printing table is located immediately below the printing discs I1. 'Ihis table is provided with a dove-tailed slot 35 in which a dove-tailed slide 3'! engages. The slide maybe extended so that the slot is exposed, and a pencil 38 may be engaged in the slot and properly held in position during the printing operation as hereinafter further described. If it is desired to print other objects besides pencils it is merely necessary to push in the slide 31 and then the printing table has a fiat top.

The printing table 35 is supported by a Vertical member 40 slidably engaging into a bracket v4I which is mounted on the base 20. This bracket 4I has a. side opening 42 in which a pinion 43 is located. The pinion 43 is mounted upon a shaft 44 which extends from the side of the bracket 4I and is equipped with a handle 45. The pinion 43 meshes with rack teeth 46 formed upon one side of the member 40. By turning the handle 45 it is possible to raise the printing table 35 with considerable pressure to accomplish the printing operation.

An inking device is associated with the printing discs and consists, essentially, of an inked or prepared transfer ribbon 48 drawn from a roll 49 which is supported on a shaft 5U, in turn supported on the frame I9. The inked or transfer ribbon 48 extends beneath the heated printing discs I1 and against a resilient holding member 'Ihis holding member serves to normally hold a web portion of the ribbon spaced from the printing discs so that the printing discs may rotate freely. The purpose of resiliently mounting the member 5I resides in the fact that when the printing table 35 is raised into operative position the member 5I will be correspondingly raised and permit the impression from the printing discs through the ribbon 48.

The member 5I is supported upon several rods 54 (see Fig. 1) which in turn are supported upon a transverse bar 52 fixedly mounted between the lugs Ic'c. Holding strips 55 are also mounted upon the bar 52 and serve to slidably support in- Springs 56 are mounted above and below the supports and a-ct between the bar 52 and the member 5I for normally holding the member 5I in a neutral lowered position. 'I'he web of the inked ribbon 70 48. after passing beneath the member 5I, ex-

75,rollers '51 and '58.

tends upwards between al pair of feeding rollers 51 and 58. These rollers are mounted in bearings 59 mounted upon the lugs |000.

A feeding mechanism is associated with the The details of this feeding mechanism form no part of the invention and therefore will not be described in detail as similar feeding mechanisms are generally known. It is operated by a link 60 connected with the table 35. Each time the printing table 35 moves upwards (or downwards, depending on design) the web 48 is advanced a small distance. As far as this invention is concerned the Web 48 may be advanced manually.

The operation of the device is as followsz-The handle 33 is moved to disengage the pawl 3l. The control dises I4 are now ready to be adjusted. 'Ihe projecting fingers I4a are moved to place them adjacent the letters 23 as is necessary to spell out ones name, or other arrangement. 'I'he springs 29 will hold the control discs I4 temporarily in any adjusted position. After the control discs I4 have been placed in their correct positions, the handle 33 is moved to engage the pawl 3I with the teeth I5 which then locks the discs against further motion.

During the turning of the discs I4 the printing discs ITI vwill turn in specific relation, since the teeth thereof engage the teeth I5. Thus, the printing discs are setV into printing position merely by the proper adjustments of the fingers I4a. An article to be printed is placed on the printing table 35. The printing table is then caused to be raised by the proper operation of the handle 45. The symbols upon the teeth I6 will bear against the inked ribbon 48 and a transfer of some of the ink to the article will result.

In Fig. 6, the printing table 35 may be lifted by one or more cams 43 mounted on a shaft 44' which extends from the side of the bracket 4I' and is equipped with a handle 45. The table 35 is supported by one or more vertical members 40. 'I'he latter project over cams `43' so that when the handle 45 is turned the printing table is raised for the printing operation as previously described. With this arrangement it is possible to leave the table in the raised position.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as dened in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:-

l. In a stamping machine, a base, a pair of I spaced vertical angle irons mounted on said base, a horizontal hollow casing mounted on said angle irons and having a plurality of spaced parallel slots extending downwards from the top side to the front side, a shaft through the center of said casing, a support rod xedly mounted between the said angle irons, a plurality of control discs with peripheral teeth rotative on said shaft and having fingers projecting laterally and transversely and engaging through said slots by which the discs may be adjusted, a plurality of spacers mounted between the said control discs and 'lxedly supported by the said shaft and said support rod and adapted to keep said control discs in spaced relation, and a plurality of printing discs with peripheral teeth engaging said teeth and having letters or symbols on the ends of said teeth and rotatively mounted on said casing.

2. In a stamping machine, a hollow casing, a shaft through the center of said casing, a plurality of control discs with peripheral teeth rotative on said shaft, a means for rotating said discs, a plurality of stationary spacers mounted between the said control discs .and adapted to keep said control discs in spaced relation, a plu- 5 rality of printing discs having peripheral teeth engaging said teeth and having letters of symbols on the ends of said teeth and rotatively mounted on said casing, a support rod xedly mounted in said casing, and said spacers being mounted between said support rod and said shaft.

HENRY OELBAUM.

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