US2245879A - Monogram engraving machine - Google Patents

Description

June 17, 1941. T. T. SOSSNER MONOGRAM ENGRAVING MACHINE Filed Jan. 20, 1940 I INVENTOR Theodore Z. Sass/yer BY z ATTORNEY Patented June 17, 1941 UNITED JSTATEE PATENT QFFHCE 2,245,879 MONOGRAM :ENGRAVING MACHINE Theodore T."Sss11er, New York, N. Y. Application January 20, 1940, Serial No. 314,782

The present invention relates to monogram An object of this inventionis to provide a machine of the type mentioned, of novel and improved construction, for marking monograms or other symbolic characters on the handles of silverware, cutlery, letter, openers, umbrellas and on other articles of various materialspthose specifically mentioned,- being mere examples.

Another object hereof is to providea novel and improved machine of the character described, in which the marking characters or tools are securely and correctly held, easily changed, and effectively impinged onto the surface to be marked.

A further object of the invention is to provide a novel and improved machine of the nature set forth, which is simple in construction, easy to use, requiring no special skill on the part of the operator, and which is efficient in carrying out the purposes for which it is designed.

Other objects and advantages will become manifest as the following disclosure proceeds.

In the accompanying drawing forming part of this application, similar characters of reference indicate corresponding parts in all the views.

Fig. 1 is a perspective View of a machine embodying the teachings of this invention.

Fig. 2 is a section taken at line 2--2 in Fig. 1.

Fig. 3 is a portion of Fig. 2, showing the position of the plunger member included in said embodiment, and of all the other parts in relation thereto, at the moment immediately preceding release of said plunger.

Fig. 4 is a similar view showing the position assumed by a pawl member included in said embodiment, as the handle is restored to initial operating position.

Fig. 5 is a bottom view of the plunger.

Fig. 6 is a fragmentary plan View of the pawl end of the operating lever included in said machine.

Fig. '7 is a front View of Fig. 6.

Fig. 8 is an exploded view in perspective, showing a marking tool and its holder.

Fig. 9 shows an end view of the parts illustrated in Fig. 8, in assembled position, ready to be associated with the plunger aforesaid.

In the drawing, the numeral l5 designates generally a frame of any suitable shape, on which there can be slidably mounted the plunger member indicated generally by the numeral I6, preferably, though not necessarily adapted for movement along the vertical, and also a relatively long lever H, terminating in a handle it at one end, and pivotally mounted near its other end on a pin it positioned through the bosses 2% of said frame i5.

A pawl 2|, which extends beyond the'end of the shorter portion of said lever H, is pivotally, mounted thereon at 22, is limited to. swing between the channel floor 2-3 and the pin 24, which serve as stops therefor, and said pawl is'adapted to engage the plunger member IS, in the acute angled notch 25, particularly identified by' the substantially horizontal step or tooth 26.

The lower end of the plunger memberlt, "semoveably mounted the monogram marking tool or other steel stamp 28. The plunger [6, is slidefit keyed in keyway 29, to maintain said plunger against axial rotation, while a relatively strong coil spring 39, is carried about the shank 3| of plunger Iii, between frame part 3 and the collar 33, vavhich latter is an integral part of said plung- .er 1

A pin 34, extending slightly from the inside face of one of the prongs of the tool holder 21, is adapted to lie within the groove 35, upon insertion of the monogram stamp 28; thus mounting said stamp against vertical movement within its holder 27 in its normal position in the machine, while pin 36 acted against by the blade spring 3'! mounted on the plunger [6, acts to lock the tool holder 21 in true position within the socket 38 in said plunger I6; said socket having an open bottom slot 39 of such size as to permit the monogram stamp 28 to protrude downwardly therefrom, pin 3% being adapted to engage in socket 4i].

Normally, at rest, the set up is as is illustrated in Fig. 2, where the handle I8 is in raised position and the plunger I6, is in its lowest position. In operation, said handle end of the lever I1, is lowered slightly, whereupon pawl 2|, res-ting against and therefore restrained by the channel floor 23, engages the step or tooth 26, and the plunger I6 is moved upward a little to permit placing an article, as for instance the handle end of a knife 4! on plate or positioning jig 42 which the latter might be. Now maintaining the knife 4! in its required setting, the manual pulling down of the handle end of the lever I! is continued, whereupon the plunger l6 will be raised and the coil spring 30 will be stressed. This raising of the plunger I6 will continue until pawl 2| passes the free edge of the step 26, whereupon the plunger will be released from said pawl, and then due to action of the spring 30, will be forced downward, causing the tool 28 to impinge forcefully onto the surface of the article 4i, whereby the latter will become marked out with a replica of the character appearing on the steel stamp or marking tool 28. The handle I8, is now raised, whereupon pawl 2| will swing about its axis 22 a little arcual distance and slide against wall.26'- until the tip end of said pawl passes the free edge of said step 26. Now the pawl will fall to its original position against stop or channel floor 23 in this instance, ready to again engage step 26 for slight raising of the plunger Hi to permit withdrawal of article-4L which was monogrammed, and to be replaced-with the next article to be so treated. This completes the cycle of operation of the machine, and it is in condition to repeat its function.

Stop pin 24 is provided to prevent pawl 21 from swinging too far, sothatupon raising the handle l8,.:said-- pawl'wi'll. surely ,be in position to fall against wall 26'; and. thento initial operating.

position. It is also evident that a slight pullon its handle, .will release the tool holder 21 from the plunger member [6, whereupon other monogram or. character stamp 28 may be easily mountframe, a plunger moveably mounted on the ed therein. Uniform operating result is effected by having the distance indicated by the letter A.

closed. It 'is therefore intended and desired that the embodimentset forth hereinbe deemed illustrative andnot restrictive and that the patent frame, having a tooth thereon; said tooth having a substantially horizontal edge and a substantiallyvertical edge; said plungerv being adapted to carry a marking tool thereon, a lever pivotally mounted nearer one of its ends onto the frame, a-.pawl pivotally mounted on the shorter portion .of the lever, adapted to engage the horizontal edge of said tooth, whereby upon lowering the longer: portion of the lever, the plunger is raised; a stopelement on the lever adapted to limit thedownward swing of the pawl, a spring in contact with the frame adapted to become stressed upon upward movement of the plunger, said pawl being adapted to become released from the tooth upon the lowering of the longer portion of the lever a predetermined distance, whereby the plunger is forced downward by action of the stressed-spring, and upon raising the longer portion of the lever a predetermined amount, said pawl -'being adapted to be swung upwardly with respect to the stop element by the vertical edge of'the tooth, during the interval said pawl comes "in contact with said vertical edge, and then to fall by actionof gravity onto said stop element, whereby said pawl is returned in position to engage the horizontal edge of said tooth.

THEODORE T. SOSSNER.

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