SU14283A1 - Fixture for recording printed lines on a typewriter - Google Patents

Description

When working on a typewriter, it is not always possible to determine how many more lines can be placed on the rest of the page, sometimes there is no legal, print-free space at the end of the last page and the correct type of printed page is broken; the elimination of this undesirable phenomenon was made at the cost of great concentration and lower productivity.

The proposed adaptation is intended to eliminate the indicated defects by automatically subtracting, during the movement of the carriage of the writing machine, from the number of lines contained in the given interval per page, the number of printed lines, the difference of which shows the number of lines that it is possible to fit. this difference is fixed by means of two discs with numbers printed on their side, indicating tens and units, and the signaling of the last line is carried out , Whose firing pin is driven by a system of levers associated with the driving disk mechanism.

In FIG. 1 shows the dolm section of the tool; - and FIG. 2 is a cross section of it.

In the walls A of the device, two axes 19, 13 are strengthened; on the first one there are free counting disks 1, 2, rigidly connected respectively to gears 17, 14, which engage with wheels 15, 12, of which the second is mounted loosely on axis 19, and the first is rigidly fixed on it. On the side surface of the disks 1, 2 put numbers from. O to 9, and inside the disks, the pins 23,22, which, together with the pins 20, 21, mounted on the axis 19, are fixed, fix the disks on it when they are rotated from the handle 24. On the axis 19, the coupling 25 is freely fixed, held against rotation along with the axis by means attached to it. a plate 26 entering the hole 27 in the hole in wall A. At the end of the sleeve 25, to hold the arm of the handle 24 in a certain position, a groove is made, one side of which is made normal to the plane of the end, and the other is inclined, in order to automatically fix the axis 19 of the discs 1, 2 when the handle 24 is rotated. On the axis L 9, the flange 28 is rigidly fixed between which and the wall A is placed a spring 28, pressing the axis in the direction of disengagement with the disks 1, 2. The gear 12, sitting on the axis 13, interacts with dog 10 resting with the other end on the end of the lever 29 and sitting on. an axle 9 fixed in the slider 7. Between the slider 7 and the cover 37 a screw spring 8 is placed, inside which a thin cable 5 passes, connected at one end with the slider 7 and the other with the crank lever 3, the latter rotating on axis 4 and holding in the normal position indicated on the drawing by spring 34 Cable 5 is enclosed outside the box of the device into a flexible spiral sleeve b, and the dog 10 is pulled in the direction of gripping for the next gear tooth 12 by the spring 11. Below the box of the device is located bell B, the striker 33 of which is turning It is fixed on axis 33 and pivotally connected to a lever 32 connected at one end with a flat spring 32, and the other with a lever 31 interacting with a pin 30 fixed on an axis 13. One pin 36 interacting with a pin fixed on the lever 32 swing around the axis 35 of the angular lever 35, the other shoulder of which interacts tio pin 34, mounted on the gear 12.

As the typewriter carriage moves at the end of each printed line, lever 3 rotates on axis 4 clockwise and doesn’t follow behind it, by means of cable 5, slider 7, which carries the dog 10 and turns 12. The rotation of the wheel 12 is transmitted, via the wheel 14, to the disk 1, which makes a full revolution during the printing of ten lines, and with its pin 16 turns the wheel 15, and with it the disk 2. Thus, the disk 2 shows the number of tens of rows, and the disk 1-k the number of units. On a normal page, 66 lines are placed if printed at one interval, 33 lines if printed at two intervals, and 22 lines if printed at three intervals. At the beginning of printing, a new page is set, as necessary, one or another number of the three listed using the handle 24, and then the device automatically drops one by one each time the carriage moves from the car from left to right. At the time of printing the last line K1, pin 34 presses the angular lever 35, which with the other end presses pin 36 and 1 levers 31, 32 out of the clutch, after which the spring 32 engages the impactor 33, and the sound signal indicating contact with the bell about the last line.

The subject of the patent.

1. A device for counting printed lines on a typewriter, characterized in that the dog 10, which engages the gear 12 and is mounted on a slider 7 connected by a cable, serves to bring the counting discs 1 and 2 attached to the tooth with the attacks 14 and 17. 5 with a lever 3 driven by a typewriter carriage when it is manually moved after a line has been printed, and to bring the counting discs to the initial position (; pins 20 and 21 on the axis 19, rotated by the handle 24, and pins 22 and 23 on disks.

2. With the device specified in clause 1, a device for signaling about the last line, consisting of the drummer 33, the pin 30 on the gear 15, the pin 34 on the gear 12 and the levers 31, 32 and 35.