US2550901A - Inker adjuster for marking machines - Google Patents

Description

y 1951 R. T. ANDERSON 2,550,901

INKER ADJUSTER FOR MARKING MACHINES Filed Dec. 18, 1945 INV EN TOR.

ATTGW/VLY Patented May 1, 1951 INKER ADJUSTER FOR MARKING MACHINES Russell T. Anderson, Denver, 0019., assignor, by

mesne assignments, to Perfection Supply Company, Denver, 0010., a corporation of Colorado Application December 18, 1945, Serial No. 635,842

1 Claim.

i This invention relates to an adjusting device "for theinker of a laundry marking machine of the type illustrated in United States Patents Nos. 2,136,461 and 2,157,497, and has for its principal object the provision of an exceedingly rugged' device that will withstand the strains to which such markers are subjected and by means of which the degree of inking or the amount of inksupplied to the printing typecan be accurately adjusted accordance with the type of work being done and the supply of ink.

Another object is to provide a positive inking dcvice for marking machines which will contact the typein advance of each marking and which will automatically move out of the path of the articlebeing marked.

Otheriobjects and advantages reside in the detail construction of the invention, which is designed for simplicity, economy, and efliciency. These will become more apparent from the following. description.

In the following detailed description of the invention,; reference is had to the accompanying drawing" which forms a part hereof. Like numeralsrefer to like parts in all views of the drawing and throughout the description.

In the drawing:

Fig 1 is a side view of a conventional laundry marking machine to which the invention is applied;

Fig. 2 is an enlarged detail sectional view, taken on the line 2-2, Fig. 1;

Fig; 3 is a similar sectional view, taken on the line 3 -13, Fig. 2; and

Fig. 4 is a horizontal sectional view, taken on the line 4-4, Fig. 3.

In the drawing typical parts of a conventional marking machine are designated by numeral as follows: housing I0, type setting levers II, index scale I2, type wheels I3, type wheel guards I4, supporting base I5, impression pad l6, impression handle I'l, impression arm I8, upper inking toggle frame I9, lower toggle frame 33, inking toggle bolt 20, inking toggle spring 2|, inking pad 22, inker connecting link 23, impression arm hinge pin 34, link hinge pin 36, and ink pad wheels I3 to bring the desired series of letters or numbers in printing alignment on the type wheels. The article to be marked is then placed across the impression pad I6 and the handle I1 is forced forwardly to swing the impression arm I 8 toward the type wheels I3. As the arm moves forwardly, the connecting link 23 pushes the toggle bolt 20 forwardly to swing the two toggle frames about the hinge pin 34 and toward the type wheels so as to bring the inking pad 22 against the aligned type faces. Further movement of the impression arm I8 forces the toggle bolt 20 still further forwardly breaking the toggle and allowing the ink pad to swing downwardly from the inked type so that the article on the impression pad I6 can be forced thereagainst as shown in Patent No. 2,136,461. The handle I1 is then swung back to its original position allowing the spring 2| to straighten the toggle frames l9 and 33 back to the position of Fig. 1.

This invention is designed to allow the pressure with which the ink pad 22 engages the type to be adjusted and varied and is also designed to lift the ink pad from the type before it moves downwardly to the inoperative position.

The invention comprises a roller supporting frame 24 which is preferably stamped from sheet metal to a V-shaped cross section so as to extend across the back of and partially enclose the upper toggle frame I9. The frame 24 is bifurcated at its lower extremity and bent forwardly to provide two bolt ears 25 through which the extremities of the toggle bolt 20 pass. The upper extremity of the frame 24 is attached to the ink pad bracket 35 by means of two adjustable tension screws 23 which are threaded into the brackbracket 35. The ink pad supporting bracket is et 35. A compression screw 3| is threaded through the frame 24 and bears against the back of the pad bracket 35. The screw 3| is provided with a jam nut 32 to lock it in any desired position. The upper portion of the frame extends forwardly at each side of the upper toggle frame I9 to form two roller ears 2?. A flanged roller 28 is pivotally mounted on the inside face of each roller ear 2! upon a suitable pivot member 29.

A notch 30 is formed in each type wheel guard I4 in the path of the rollers 28. The rollers 28 contact the bottoms of the notches 30 at the time the inking pad 22 contacts the aligned type faces. The pressure of the latter contact can be adjusted by adjusting the tension screws 26, the compression screw 3| and jam nut 32, that is, should greater pressure be desired between the type faces and the ink pad, the screws 26 are loosened and the screw 3! is tightened to move the rollers 28 closer to the ink pad.

The device operates as follows: As the impression arm 18 is swung forwardly, the connecting link 23 forces the straightened toggle IQ forwardly until the inking pad 22 strikes the type faces and the rollers 28 enter the notches 30. Further movement of the impression arm l8 causes the toggle [9 to break forwardly at the toggle belt 25. This pulls the rollers 28 downwardly causing them to climb out of their notches 3% to lift the ink pad from the type faces. The rollers then travel downwardly beneath the type wheel guards [4 so as to be out of the path of the article as it strikes the type.

While a specific form of the improvement has been described and illustrated herein, it is de-' sired to be understood that the same may be varied, within the scope of the appended claim,

without departing from the spirit of the invention.

Having thus described the invention, what is claimed and desired secured by Letters Patent is:

An inking device for laundry marking machines of the type having an inking pad supported on the upper extremity of a two-part toggle arm and positioned between type wheels and a platen oscillatahle to and from printing position, comprising: a toggle bolt joining the two parts of the toggle arm; connecting means extending from said toggle bolt to a connection with said platen and acting to urge said toggle arm and its associate ink pad into type-inking position as said platen is moved to printing position, and thence to break the toggle when the contact of said ad 4 with said type wheels prevents further movement of the pad; a roller frame hingedly mounted at its lower extremity on said toggle bolt; an ear extending forwardly from the upper extremity of said frame at each end of said inking pad; a roller rotatably mounted on each ear and extending forwardly from said pad; roller-receiving means at each side of said type wheels for receiving and guiding said rollers around said type wheels after said toggle is broken; and adjusting screws extending from the upper portion of the roller frame into the upper part of the toggle arm for moving said roller frame forward and back relative to said pad to vary the contacting position of said rollers relative to the inking position of said pad.

RUSSELL T. ANDERSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 908,847 Dixon 1 Jan. 5, 1909 1,179,797 Bell Apr. 18, 1916 1,196,114 Hume Aug. 29, 1916 1,436,599 Mathiasen Nov. 21, 1922 2,136,451 Petty Nov. 15, 1938 2,150,744 Marchev Mar. 14, 1939 2,157,497 Petty May 9, 1939 2,213,130 Presby Aug. 27, 1940 2,251,354 Gettman Aug. 5, 1941 2,454,823 Malott Mar. 22, 1949

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