US2671711A - Disturbance-recording system - Google Patents

Description

Match 9, 1954 E. MASSON ET AL 7 DISTURBANCE-RECORDING SYSTEM Filed April 12, 1951 Patented Mar. 9, 1954 UNITED STATES PATENT OFFICE DISTURBAN CE-RECORDIN G SYSTEM Emile Masson, St.-Maurice, and Henri Brifiard.

Issy-lcs-Moulineaux, France, assignors to Societe Francaise Sadir- Carpentier, Paris, France.

a corporation of France Application April 12, 1951, Serial No. 220,654 Claims priority, application France April 14, 1950 6 Claims. 1

Our invention relates to a disturbance-recording system of the type wherein the record on paper that is produced only when the disturbances have appeared, carries a record of the modifications of the magnitude to be examined during the time that has preceded said disturbances and our invention covers more particularly improvements to the inking means for .such disturbance-recording systems.

The disturbance-recording systems of the type disclosed are intended for the recording of modifications of any phenomena, the rate of which is given out by the movement of a hand or stylus when one or more of the phenomena considered or other phenomena assume fortuitously abnormal values and they allow the recording of these phenomena durin a time interval of which a traction precedes the moment of the appearonce of such phenomena having an abnormal iortuitous value.

Such phenomena are generally constituted by electrical magnitudes the variations of which it is desired to examine at the moment of the appearance of a disturbance.

.The principle of our improved method con- ;sists in executing, as long as the system or instrument is operative, a record of the variations of the electric magnitude or magnitudes to be studied, said magnitude or magnitudes controlling the shifting of a stylus along a line parallel to the generating line of a cylinder rotating with aconstant speed round its axis and that is suitably coated with a fatty ink material.

Therecord thus drawn on the cylinder is wiped out a few moments later, when the generating lines of the cylinder over which the record has been made, return under the action of the rotation of said cylinder, into the stationary meridian plane in which the cylinder is inked.

. The record carried by the cylinder remains extant during a predetermined time interval depending on the duration required for a given generating line of the cylinder to move from the stationary meridian plane in which the stylus moves and the stationary meridian plane in which the inking is provided.

The appearance of an electrical disturbance in the network leads to the operation of a releasing electromagnet the armature of which is attracted. and has for its action to apply, through any suitable means, a sheet of record paper onto the inked cylinder so as to reproduce on the paper in white on black, the record drawn on the inked cylinder before the latter has been wiped out by the inking means.

a generating line requires a duration t less than 0 for its movement with the rotary vcylin der, from the meridian plane containin the re.- cording stylus, into the meridian plane contraining the recording sheet of paper urged against said cylinder, there is obtained a recordon paper of the modifications of the magnitude or magnitudes to be studied during a time t preceding the attraction of the armature of the .electromagnet, in other words, the moment at which the disturb-ance appears.

Through a suitable adjustment of the circuits providing for the attraction of the releasing re lays, the sheet of paper maybe held a ainst the cylinder during a time t, that is always longer than 15, followin the appearance of the distrub once so as to allow the recording of the varia .tions of the magnitude or magnitudes to been.- .amined during this time interval .t.: this time interval includes a duration t that precedes the appearance of the disturbance and a period the duration of which is t'wt following the appearance of said disturbance.

Studies made by applicant haveshown that in thelong time intervals during which the instrument was operative without any disturbances -appearing in the network, it was necessary to limit the thickness of the inkfilm laid-onthe-cylinder if it was desired to prevent a speedy fouling of all the members of the instrument while allow ing the production o1- a uniform ink layer.

The amount of laid onto the cylinder should besubstantially limited to an amount approximating that required for leavin a sufficient ink vfilm allowing the recording of the variations of the magnitude or magnitudes to be examined in the absence of any disturbance in the network, said film bein produced while ,a generating line, inked during its last passage through the;meridian plane in which the inking arrangement is provided, moves out of. said plane into the ma ridian plane in which-the recording stylusmoves.

Now, when a disturbance appears in the;network, theconsumption of ink increasesverysuddenly, as part of the ink .is'transferred ontothe recording paper and consequently, it for any reason such as a longer duration of the 4 1s turbance, the time interval during which the recording is formed is comparatively high, the inking is notsufiicientand the printing .on the record paper becomes blurred, soon turns illegible and even disappears. In order to remove this drawback. our inven tion covers an improvement in disturbanc recorders of the type described above, according to the recording is performed on the paper strip.-

Said duration t depends on the duration of the disturbance and may be limited to a duration" T when the duration of the disturbance rises above a predetermined value.

To this end, the attraction of the armature ofthe electromagnet that controls the application of the record paper onto the inked cylinder produces also an increase in the amount of ink applied to said cylinder.

Our invention will be described hereinafter within the scope of an embodiment illustrated diagrammatically in the single figure of accompanying drawing. but obviously our said invention is not limited to this particular case and covers any disturbance-recording means incorporating an arrangement for increasing the admission of ink onto the inked cylinder during the transfer of the record on paper.

Auxiliary cylinders 4 and 5 are employed to apply ink onto the cylinder I along the upper generating line of which, as illustrated, the stylus or styluses 2 move in accordance with the variations of the magnitude or magnitudes to be "member or members 3.

A system of pens 6 or the likeparts such as cups, metal blades or wire eyelets executes a reciprocating movement between the ink container I and the cylinder 5 so as to feed a little ink onto the cylinder 5. This cylinder transfers the ink frictionally onto the cylinder 4 that revolves in contact with the main cylinder I. The relative rolling movement of the three cylinders 5. 4 and l with reference to one another provides for the spreading of the ink brought onto the cylinder 5 by the pens 6. A helical groove drawn on the cylinder 5 allows increasing the uniformity of the layer of ink applied to the cylinder I.

The reciprocation of the pens 6 is obtained by securing said pens through the agency of yielding rods to a mechanical system or linkage 8 that is adapted to oscillate about the pivot II. This linkage 8 includes a lever II] that is connected by a spring l3 to the wheel 9 driven in unisonf with the cylinders I, 4 and 5, so as to assume a uniform rotary movement under the action of the motor driving the system, said motor not being illustrated.

According to our invention, there are provided two pen systems 6 and 6" located at two different heights whereby, when the shifting of the mechanical system 8 is limited, only a single pen system 6' comes into contact with the cylinder 5 while, when the shifting of said mechanical system is substantial, the two pen systems 8' and 6'? engage the cylinder 5 so asto produce a larger transfer of ink.

' According to an important feature of this invention, the attraction provided by the electromagnet 23 on the armature 22 which functions to apply the record paper 26 onto the inked cylinbecause the linkage 8 may swing through a larger angle thereby permitting both pens 6' and B" to come into contact with the cylinder 5.

By way of an example, we may mention that the mechanical system 8 may be constituted by a rigid bar ID, to the stationary pivoting point ll of which are secured resilient parts carrying the pens 6' and 6". The bar It is connected, furthermore, through a pivotal connection l2 to a spring Hi, the other end of which is connected by a rod 14 to an eccentric point 15 of the wheel 8.

The stop l6 connected. preferably through I the agency of a linkage l1|8--l9 of which the pivot I9 is secured to the frame, with the metal rod 20 forming one of the arms of a lever system rockably carried by the pivot 2| also secured to the frame. The armature 22, associated with the electromagnet 23, is connected to the rod 20.

A projecting arm 24 on said lever system is secured, furthermore, to the axial spindle carrying the cylinder 25 around which is wound the paper strip 26 fed by the roller 21.

When the winding of the relay 23 is de-energized, the record paper 26 is no longer in contact with the cylinder l and the stop 16 limits the movement of the bar in and limits thereby the transfer of ink onto the cylinder 5.

As soon as the winding of the electromagnet 23 is energized as a consequence of the appearance of a disturbance for instance, the lever arms 24-20 are rotated about the pivot 2| since the electromagnet 23 attracts the armature 22 and the two following results are obtained: on one hand, the record paper 25 is applied against the cylinder I and the actual recording is obtained on said paper; on the other hand, the stop 16 is shifted upward and no longer limits the amplitude of movement of the rigid bar In; consequently, the movement of said bar assumes a sufficient amplitude for urging both of the pens 6 and 6" into contact with the cylinder 5 during the periodic movement imparted to the pen system by the wheel 9. This results in increased transfer of ink onto the cylinder 5, when the electromagnet is thus energized.

Of course, numerous detail modifications may be made in the arrangement disclosed without thereby unduly widening the scope of the invention as defined in accompanying claims. In particular, it is possible to resort to independent inking means of which one is used permanently and the other becomes operative only when the controlling electromagnet armature is attracted.

What We claim is:

A disturbance-recording system comprising a main rotary cylinder, three operative stations adapted to engage the circumference of said cylinder along three lines parallel with the axis of said cylinder, said three operative stations including, in the direction of rotation of said cylinder, in succession: inking means for inking the circumference of said cylinder, recording means submitted to the action of outer phenomena, and record transferring means, and means submitted to the action of the disturbances and adapted, when operative, to simultaneously urge said record-transferring means into operative contact with the inked surface of said cylinder and to control said inking means for increasing the delivery of ink to the circumference of said cylinder.

2. A disturbance-recording system comprising a main rotary cylinder, three operative stations adapted to engage said cylinder along three lines parallel with the axis of the cylinder, said three operative stations including, in the direction of rotation, in succession: inking means for inking the circumference of said cylinder, recording means submitted to the action of outer phenomena, and record-transferring means, and electromagnetic means energized in accordance with the disturbances and adapted, when operative, to simultaneously urge said record-transferring means into operative contact with the inked surface of said cylinder and to control said inking means for increasing the delivery of ink to the circumference of said cylinder.

3. A disturbance-recording system comprising a main rotary cylinder, three operative stations adapted to engage said cylinder along three lines parallel with the axis of the cylinder, said three operative stations including, in the direction of rotation, in succession: an inking roller system for inking the circumference of said cylinder, recording means submitted to the action of outer phenomena and record-transferring means, two inking pens adapted to operatively engage said inking roller system, means rotating in unison with said cylinder for periodically engaging one of said pens with said inking roller system and means submitted to the action of the disturbances and adapted, when operative, to simultaneously urge said record-transferring means into operative contact with the inked surface of said cylinder and to engage the other of said pens with said inking roller system for increasing transiently the delivery of ink to said cylinder.

4. A disturbance-recording system comprising a main rotary cylinder, three operativ stations adapted to engage said cylinder along three lines parallel with the axis of the cylinder, said three operative stations including, in the direction of rotation, in succession: an inking roller system for inking the circumference of said cylinder, recording means submitted to the action of outer phenomena and record-transferring means, two inking pens, a link member carrying said pens, a rotary member rotating in unison with said cylinder, a resilient member controlling said link member and actuated periodically by last mentioned rotary member for urging said pens into engagement with said inking roller system, an abutment normally preventing the movement of said link member beyond the position for which only one of said pens engages said inking roller system and means submitted to the action of the disturbances and adapted, when operative, to simultaneously urge said record-transferring means into operative contact with the inked sur-' face of said cylinder and to shift said abutment to allow said link member to continue its movement and to engage the other of said pens in its turn against said inking roller system.

5. A disturbance-recording system comprising a main rotary cylinder, three operative stations adapted to engage said cylinder along three lines parallel with the axis of the cylinder, said three operative stations including, in the direction of rotation, in succession: inking means for inking the circumference of said cylinder, recording means submitted to the action of outer phenomena and record-transferring means, additional means for inking said cylinder along the same line as the first mentioned inking means and electro-magnetie means energized in accordance with the disturbances and adapted, when operative, to simultaneously urge said rec0rdtrans ferring means into operative contact with the inked surface of said cylinder and to make said additional inking means transiently Operative- 6. A disturbance-recording system comprising a main rotary cylinder, three operative stations adapted to engage said cylinder along three lines parallel with the axis of the cylinder, said three operative stations including, in the direction of rotation, in succession: inking means for inking the circumference of said cylinder, recording means submitted to the action of outer phenomena and record-transferring means, and electromagnetic means energized in accordance with the disturbances and a linkage controlled by said electro-magnetic means, when operative, to mechanically urge said record-transferring means into operative contact with the inked surface of said cylinder and to simultaneously control the delivery of ink by said inking means to said cylinder for increasing said delivery.

EMILE MASSON. HENRI BRIFFARD.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date ,335,125 Miller Mar. 30, 1920 2,341,652 Rey Feb. 2, 1944

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