DE366725C - Typewriter with an easily releasable connection between the paper trolley and the frame - Google Patents

Description

GERMAN EMPIRE

ISSUED
ON JANUARY 10, 1923

REICH PATENT OFFICE

PATENT LETTERING

CLASS 15 g GROUP XIIl I ₅ g)

The Bar-Lock Typewriter Company Limited of "Bar-Lock" Buildings, London.

Typewriter with an easily detachable connection between the paper trolley and the frame.

Patented in the German Empire on April 7, 1920.

According to the Union Treaty of June 2, 1911, priority is due to this application of the application in Great Britain dated March 27, 1919.

The invention relates to a typewriter with a removable paper trolley and aims to simplify the connection between the holder of the paper frame and the machine frame in such Machines in which the wagon keeper is firmly seated on the machine frame. share which are located on the front and on the back of the holder. The connection is made according to the invention

so that a claw and tenon connection is provided for the rear end of the holder, the pins being arranged in the same direction as the longitudinal axis of the paper roller, so that a joint is created parallel to the paper roller, while the connection between the holder and the frame at the front end of the holder is so designed that it allows an upward oscillation of the holder around said hinge at the rear end of the holder, but limits movement against the frame. The connection at the front end of the holder can also be a claw and pin connection, whereby it is fundamentally irrelevant for both holder ends whether the claws are arranged on the holder and the pins on the frame or vice versa, the pins on the holder and the claws on the frame . In this arrangement, the solution is carried out of the holder by the frame in the manner that the holder is swung with its front end upwards, rotating about the rear claw and tenon joint, whereupon the rear link by ^loading: movement of the holder in the direction perpendicular to the longitudinal axis of the paper roll _; can be solved. Triggering | Bare organs to prevent an unintentional upward oscillation of the holder can be provided. ;

The invention is illustrated in the drawing of an exemplary embodiment. · Fig. Ι is a plan of that part j of the machine frame on which the carriage j holder is placed, with part of the holder being shown while another part has been omitted for the sake of clarity of the drawing.

Fig. 2 is an end view of the parts shown in Fig. 1 looking in the direction from the right-hand end of Fig. 1.

Fig. 3 shows the same parts as Fig. 2 in an end view, but with the carriage holder is shown partially lifted from the frame with the car sitting on it.

Four vertical approaches are cast on the base plate A of the machine, of which two approaches A ^{1 are} more to the rear and the other two A ^{2 are} more to the front. In the approaches A ¹ pins B are screwed, which protrude laterally from the approaches, and whose longitudinal axis runs parallel to the longitudinal axis of the paper roll. The other approaches A ^{2 also} carry pins B ¹ , which protrude laterally from the approaches, and whose longitudinal axes run parallel to the longitudinal axis of the paper roll; but these pins are not screwed into the lugs, but the screw-threaded parts U ^{2 of} these pins sit loosely in holes in the lugs, and the pins are fixed ^{by nuts B 3.} Each pin is offset so that a flange surface is created, which lies against one side surface of the base plate approach, while the nut is pressed against the other side surface, so that the pin in any position that you give him within the hole provided in the frame approach can, can be determined by clamping action.

The carriage C with the platen roller C ¹ rests on the holder by means of ball bearings D D ^{1, r} on \ order end of the holder are provided above and below. The rear end of the carriage has two guide rails, the opposite sides of which form ball channels for the balls D ¹ and are opposite the upper and lower ball channels of the holder. The rear part of the holder D has an arm E at each of its two ends . Each arm E forms a claw E ¹ running parallel to the arm at its rear end and a claw E ² perpendicular to the longitudinal direction of the arm at its front end . The claws E ¹ comprise the pins B, which, together with the claw-shaped ends of the arms, form the support members for the rear end of the holder. The claws E ² encompass the pin B ¹ and together with them form the support organs for the front end of the holder. The claws fit exactly onto the pin so that there is no noticeable play between the claws and the pin. The arrangement allows the trolley to be removed quickly from the frame by first lifting the front part, as shown in Fig. 3, to disengage the claws E ² from the pins B ¹ , and then by placing the holder at right angles to the trolley pulls forward to the longitudinal axis of the paper roll in order to release the claws E ¹ from the pin B. Similarly, the trolley can be reconnected to the frame by first ^{sliding the jaws JS 1} over the pins B while the front end of the trolley and its holder are raised, and then lowering the front end so that the jaws E ² slide over the Push pin B ¹ .

The fact that the carriage is engaged with the rear pin B at points which are well below the level of the central axis of the platen, causes the carriage to quickly swing away from the ribbon just in front of it, so that the Cart gets out of range with ease and stays out of range when removed or placed on the machine. When placed on the machine, the car is expediently held so that its front edge is perpendicular to the pin B when the

B66725

Claws E ^{1 are slid} over these pins so that the operator can easily bring the parts into proper engagement, whereupon he is swung forward and downward to place the claws E ² on the pin B ¹ . On the sides of the holder hooks ¹ are expediently attached, which are able to grasp under the pin B ¹ when the holder rests on them, so that

ίο the holder is not only prevented by the pin from moving downwards towards the frame, but is also secured against upward movement away from the frame. The hooks F have handles F ¹ , which on

is to step out from the side of the two ends of the holder so that the operator can withdraw them both at the same time before swinging the carriage upwards. Each hook carries a pin F ² , which is located in a hole F ³ . moved to limit the amount of movement of the hook about its pivot point and prevent it from moving excessively out of its operative position.

The purpose of arranging the pins B ¹ with their screw-threaded part B ² in holes of the lugs A ² , which have a larger diameter than the pins, is to enable the precise adjustment of the paper roller with respect to the stop point of the type lever.

After loosening the nuts B * , the pins can be moved backwards and forwards to adjust the paper roller in the horizontal direction; the pins can also be raised and lowered to give the roller the desired height setting. When the correct setting is achieved, the nuts Β ^{Ά are} tightened and the pins B ^{1 are} fixed.

Claims (3)

Patent Claims: i. Typewriter with easily detachable connection between the paper trolley and the frame, in which the holder of the paper trolley is carried by the machine frame by parts which are firmly seated on the frame and are located on the front and on the back of the holder, characterized in that the Rear support members consist of a claw (E ¹ ) on one part (ζ. Β D) and a pin (B) on the other part (e.g. the frame A) , the longitudinal axis of the pin (B) being parallel to the The longitudinal axis of the paper roll is, and that the front support members (z. B. the pin B ¹ ), which are captured by a claw (E ² ) turn, are arranged so that they the movement of the front end of the holder (D) against the Limit the frame (A). 2. Easily releasable connection between paper trolley and typewriter frame according to claim 1 with front and rear claw and pin connection for the paper trolley holder, characterized in that the claw (E ¹ ) of the rear claw and pin connection allows an adjustment movement forwards and backwards, and that the pin (B ¹ ) of the front claw-and-pin connection lies with its longitudinal axis parallel to the longitudinal axis of the paper roll and is arranged (for example by being clamped in a vertical projection A ² , which has a hole penetrated by the pin with clearance) that it can be both backwards and can be adjusted downwards as well as forwards and upwards. 3. Easily detachable connection between paper trolley and typewriter frame according to claim 1 with cooperating claws and pins at the front and rear ends of the paper trolley holder, characterized in that the bearing pins (B ₁ B ¹ ) sit in the same horizontal plane in vertical, provided on the frame approaches. For this purpose ι sheet of drawings.