DE261812C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

-Ju 261812- CLASS 75 «. GROUP

HANS HUNDRIESER in BERLIN-HALENSEE.

Copy machine. Addition to patent 254215.

Patented in the German Empire on July 18, 1911. Longest duration: July 30, 1925.

The invention relates to xiie further design of the copier according to patent 254215. The innovation consists partly in the arrangement of double-sided, superimposed, adjustable to the column c at any angle, articulated with each other with extendable rods k, which makes it possible that not only workpieces in the size corresponding to the model and the same size enlargements or reductions can be produced, but also, by changing the distances between the crossbars k and the arms e, f from each other and by adjusting the length of the arms, from the workpieces w ¹ to the Traverses k each piece can be made in a different size, partly in the replacement of the counterweight of the column by a resilient device that can be regulated in its pressure effect, which in addition to the much lighter design of the machine causes the column c to remain in any position.

The drawing shows in Fig. 1 a copying machine, the crossbeams k are set at right angles to the column c for the purpose of reproducing workpieces in two different sizes. The articulated and extendable linkage k ¹ mediates the uniform movement of the crossbars when they change angle to the column.

The transfer of the axial rotary movement of the arms e, f of a cross member to one another as to the arms of the other cross member is carried out by means of rods qu, qu ¹ rigidly connected to the outer arms and rods r and r ¹ connected to them in an articulated manner . If an arm is rotated, all arms connected to the rods must forcibly join in the movement.

Fig. 2 shows a cross member k adjustable at any angle to the column c and an embodiment of the joints repeating themselves at the corresponding points.

The column sleeve m and the traverse sleeve I are each provided with a face plate h ¹ , which both lie against one another, rotating around their center point, form a joint which can be fixed by pressing the plane surfaces together by means of a screw connection located centrally or on the edge. All column traverse joints and traverse arm joints are designed in the same way. In order to prevent the arms e, f from sliding in the joint sleeves g, but still keep the arm rotatable, clamping rings g ^{1 are} attached around the arm at both ends of the sleeve g.

The linkage qu and qu ¹ is rigidly connected to a sleeve qu ² and arranged at right angles to cross one another. If the pushbutton arm carrying e axially rotated so that it encloses clamped sleeve must qu ² qu with their linkage

and qu ¹ follow the movement, as a result of which the linkage r articulated to it rotates the arm f which is arranged on the upper cross member and carrying the tool (several such arms can also be arranged), while the linkage r ^x articulated to qu ¹ rotates vertically Direction which transmits the movement to the arms f of the lower cross member k. The rigid with the

ίο arms connected linkage 17 ″ are formed at the intersection points with the linkage r to form universal joints y ¹ .

As a replacement for the pillar counterweight d provided in the machine according to the main patent, a resilient braking device is arranged, under the influence of which the pillar c remains in any given position and whose force effect when the pillar is deflected from the vertical position, corresponding to the torque of the entire copying device, increases or decreases.

Fig. 3 shows the braking device in an exemplary embodiment in section.

With the column c fixedly connected and extend in the same direction leaf springs 11 are arranged, which press against the inside of the housing posts and rest with their b resilient outwardly curved booms and ^a to the spars. If the column c oscillates about its axis a, the springs 11 and their arms n ^{a will} exert an automatically increasing pressure as they slide through between the bars b due to their spreading design and hold the column c in their respective positions.

In order to be able to regulate the pressure effect and to enable the column to be fixed, the springs Ii are passed between the movable brake pads 12 and the spars b . If the brake pads 12, which can be driven in opposite directions by means of a crank 14, press against the springs 11, they are pressed against the inside of the bars and their braking effect is increased, which can be increased if the column is tightened until the column becomes immobile.

Claims (1)

Claim: Copying machine according to patent 254215 / characterized in that the crossbars and column sleeves (I, m) are designed as joints which allow the crossbars (k) to be set and fixed at any angle to the column (c) so that the crossbars ( k) are connected to one another by an articulated linkage (k ¹ ) in such a way that they have to perform the same movements that the tools of the higher positioned traverses protrude beyond those of the traverses arranged below and with these through a linkage engaging the tool arms (β, f) (qu ¹ , r ¹ ) are connected in such a way that they can be rotated simultaneously with them, and that the column (c) is provided with a resilient device (11) whose pressure can be regulated and locked by movable brake pads (12), which holds the column (c) in every position and whose force increases or decreases with the deflection of the column (c). 1 sheet of drawings.