US2212443A

US2212443A - Address-printing machine

Info

Publication number: US2212443A
Application number: US189198A
Authority: US
Inventors: Krell Joseph
Original assignee: Adrema Maschinenbau GmbH
Current assignee: Adrema Maschinenbau GmbH
Priority date: 1937-02-27
Filing date: 1938-02-07
Publication date: 1940-08-20
Anticipated expiration: 1957-08-20

Description

Aug. 20, 194 J. KRELL SS-PRINTING MACHINE Filed Feb. 7, 193a ADDRE 2 Sheets-Sheet l Jnramar: K re.

Aug. 20, 1940. v J. KRELL 2,212,443

ADDRESS-PRINTING MACHINE v Filed Feb. 7, 1938 2 Sheets-Sheet 2 Jm enfar': J hre// Patented Aug. 20, 1940 UNITED STATES 2,212,443 ADDRESS-PRINTING MACHINE Joseph Krell, Berlin-Zehlendorf, Germany, as-

signor to Adrema Maschinenbauges. m. b. IL,

Berlin, Germany Application February 7, 1938, Serial No. 189,198 In France February 27, 1937 3 Claims.

My invention relates to printing machines, such as address-printing machines, for manual operation.

More particularly, my invention relates to that type of printing machines in which a printing arm is pivotally mounted to oscillate up and down, and means is provided for feeding printing plates along a track and past a printing station intermittently in sequence and in their. longitudinal direction.

In machines of this kind, as designed heretofore, a handle is provided at the free end of the printing arm by which the operator lowers the printing head onto the printing plate. It is ob vious that the momentum which can be imparted to the descending printing head in this way, is not great.

It is an object of my invention to improve a machine of the kind described, with a view to imparting a high momentum to the descending printing head with a minimum efiort on the part of the operator.

To this end, in combination with a table and the usual printing arm.which is pivoted on the table, I provide a manual operating lever which is also pivotally mounted on the table, and preferably fulcrumed on the same pivot with the printing arm, and arrange this lever so that its effective length is greater than the distance of the printing head at the free end of the printing arm from the axis of its pivot.

By these means, a leverage in the favor of the operator is produced who can, with a comparatively slight effort, exert a high momentum at 5 the descending printing head.

In the accompanying drawings an addressprinting machine equipped with my novel operating mechanism is illustrated in perspective by way of example.

In the drawings Fig. 1 is an illustration of the complete machine, showing the hand lever in elevated position,

Fig. 2 is a detail illustration showing the hand lever in depressed position,

Fig. 3 is a diagrammatic plan view of the machine.

Referring now to the drawings, and first to Fig. 1, this shows the machine from its front end,

i. e., as viewed from the operators stand. I is the frame, and I is the table, of the machine. 4 is the printing arm which is mounted to oscillate up and down about a pivot 5 in the frame I, and is equipped with a printing head 3 and a printing pad 2. The pivoted end of the printing arm is forked in known manner. 4 is a tail which depends from the printing arm, and 6 is a spring connected to the tail and anchored below the table 1. The spring tends to hold the printing arm 4 in the elevated position shown in Fig. 5 and to return it into such position when it has been lowered. 8 is a track in the table I along which the printing plates II from a supply in a magazine I2 are fed toward the printing station 9 intermittently by means operatively con- 1 nected to the hand lever 15, as will be described. At the printing station 9, a ribbon l0 extends across the track 8. The plates which have been printed at 9, fall into a hopper l4 at the left side l3 of the frame I below which one of the 15 tables 56 is arranged.

The hand lever I5 is arcuate, and preferably pivoted about the pivot 5, with its boss within the forked end of the printing arm 4. A handle I6 is secured to the free end of the lever I5. 20 As shown in Fig. 3, the effective length a of the lever I5 is greater than the distance I) of the printing head 3 from the axis of the pivot 5, and in this manner the desired leverage is produced and considerable momentum isimparted to the 26 descending printing head 3. A tail I'I, Fig. 2, extends downwardly from the boss of the lever l5, and a spring l8 tends to hold the lever IS in its erected position, as shown in full lines in Fig. 1. and in dotted lines in Fig. 2, or to return the 30 lever into such position. The hand lever l5 and the printing arm 4 are connected by a clutch, as follows: I!) is an abutment, or tooth, on the printing arm 4, and 20 is a pawl pivoted on the hand lever I5, for engaging the abutment I9. 22 is 35 a curved rod which is pivotally connected to a tail 2| of the pawl 20 at one end. The other end of the rod slides in a block 23 on the hand lever l5 and is equipped with a press button 24.

A spring 25 placed on the rod 22 between the 0 block 23 and the button 24 tends to hold the pawl 20 in its normal or clutching position inwhich the pawl 20 is in contact with the abutment IS on the printing arm 4.

The means operatively connected to the hand 45 lever l5 for feeding the plates along the track includes a system designated by the numeral 26 and including a cable or rod 26 connected to the tail I! at one end, and to a bellcrank pivoted below the table I at the other, and a link connecting the bellcrank to a slide 21 below the magazine H which is reciprocated in the directions of the arrow 28 when the hand lever I5 is oscillated. When the hand lever l5 returns into its normal position under the action of the spring [8 after hav- B6 ing been depressed by its handle IS, the slide 21 is advanced, i. .e., moved toward the printing station 9, and carries along with it the lowermost 'plate I i from the magazine l2, shifting the plates in the track 8 for the length of one plate, and throwing the plate at the left-hand end of the line into the hopper l4.

Normally, the printing arm and the hand lever are held in the elevated position, Fig. 1, by their respective return springs 6 and I8, and the clutch I9, 20 is thrown in by the spring. 25 on the rod 2.2. When the hand lever I5 is depressed by its handle [6, the printing arm 4 is lowered by the clutch, and that plate II which is at the printing station 9 is printed on the envelope, sheet, or the like which has been placed on the ribbon Ii). During the depression of the hand lever l5 and the descent of the printing arm 4, the slide 21 is retracted, i. e., moved to the right in Fig.1,

station; 9 upon every depression of the lever i5,

and upon every return of the printing arm 4 and the hand lever I5 under the action of their springs, a fresh plate II is advanced toward the printing station 9 by the slide 21.

If it is desired to skip the plate at the station 9, pressure is exerted against the button 24, Fig. 2, the spring 25 is compressed and the rod 22 moves the pawl beyond reach of the abutment [9 at the printing arm. In consequence, the printing arm is not lowered when the hand leve'r I5 is depressed, and so the plate at the station 9 is skipped. However, the feed of the plates is continued and a fresh plate is presented at the station 9 upon every return of the lever l5 into its initial position by the means 26, 21.

By selective operation and non-operation of the button 24, definite plates from the supply are printed, and others skipped.

Preferably, a bufier 29, of leather or other material possessing little resiliency, is placed on, or

inserted in, the table I, as shown in Fig. 2. A projection on the descending hand lever I5 strikes the buffer when the lever is depressed. By these means, the sound of the blow the hand lever exerts against the table i, is deadened, and so the machine operates without noise.

I claim:

1. A manually operated address-printing machine, comprising a table, a pivot on the table, a printing arm fulcrumed on the pivot, a printing head at'the free end of the arm, a manual operating lever for the printing arm which lever is also pivoted on the table, means tending to hold the printing arm in its elevated position, and a one-way connection between the operating lever and the printing arm for throwing the arm into printing position against said holding means.

2. A manually operated address-printing machine, comprising a table, a pivot on the table, a printing arm fulcrumed on the pivot, a printing head at the free end of the arm, a manual operating lever for the printing arm which lever is also pivoted on the table, a track on the table,

. means for feeding printing plates along the track past a printing station, means connecting the lever with the plate feeding means, means tending to hold the printing arm in its elevated position, an abutment on the printing arm, a pawl pivoted on the lever and engageable behind one side of the abutment to couple the lever with the printing arm for throwing the arm into printing position against said holding means, and manually releasable means normally retaining the pawl against the side of the abutment.

3. A manually operated address-printing machine, comprising a table, a pivot on the table,

a printing arm fulcrumed on the pivot, a printing head at the free end of the arm, a manual operating lever for the printing arm which lever is also pivoted on the table, a handle at the free end of the lever, a track on the table, means for feeding printing plates along the track past a printing station, means connecting the lever with the plate feeding means, means tending to hold the printing arm in its elevated position, an abutment on the printing arm, a pawl pivoted on the lever and engageable behind oneside of the abutment to couple the lever with the printing arm for throwing the arm into printing position against said holding means, and manually releasable means including a link supported on the manual operating lever and connected at one end with the pawl, a manipulating member arranged on the other end of the link adjacent the handle, and spring means normally tending to move the link to hold the pawl against the side of the abutment, for controlling the oneway connection of the lever and the printing arm.

JOSEPH KRELL.