US1392792A - Line-stop for typographical machines - Google Patents

Description

E. W. PIERSON.

LtNE STOP FOR TYPOGRAPHICAL MAGHlNES. APPLICATION FILED Nov. 27, 1920.

1,392,792. Patented Oct. 4, 1921.

WITNESSES: INVENTOR UNETEB fi'l'iATES earner caries.

EDI/VIN VJ. PIERSO1\T OF NEVTARK, NEW JERSEY, ASSIGNOR TO INTERTYPE CORPO- RATION, OF BROOKLYN, NEW YORK, -A CORPORATION OF NEW YORK.

LINE-srcr non TYPOGRAPHIGALMAGHINES.

Specification of Letters Patent.

Patented Oct. a, 1921.

Application filed November 27, 1920. Serial No. 426,825.

To all whom it may concern: v

Be it known that I, EDWIN WALTER PIER- soN, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented new and useful Improvements in Line-Stops for Typographical Machines, of which the following is a specification.

The present invention relates to improve ments in typographical machines and more especially to those of the linotype class which employ a so-called first elevator, the function of which is to receive an assembled line of matrices and spacers from a line delivery carriage, lower the line so received.

to the casting mechanism and to subsequently elevate the line to a higher level for transfer to a so-called second elevator for delivery to the matrix distributer.

In the practical operation of typographical machines of this type, it has been found that the end matrices in the line contained in the first elevator are liable to become separated from the remaining matrices in the, line and to become turned orotherwise d1splaced, thus causing jamming ofthe line during transfer thereof from the firstelevator, and in some cases, the end matrices drop from the elevator. droppingof the end matrices of the line is likely to occur particularly during the ascent of the first elevator following a casting operation, it being caused by jarring or vibration incident to the operation of the machine, and it is veryapt to occur when the assembled line in the first elevator is used re-- peatedly to produce duplicate type slugs, in which case, the same line of matrices and spacers remains in the first elevator and is elevated tothe transfer position and lowered to the casting position incidental to the casing of each type slug.

The object of the present invention is to; provide a novel and improved line stop in the first elevator which is capable of accom; modatingitself automatically to the length of each line received by the'first elevator, thus compensating for any variation that may occur in the length of the lines, without l requiring manual setting or adjustment by the operator, and which will'function to properly position and prevent displacement or dropping of the matrix at the forward or advanced end of the line, these results being attained in such manner that the line This displacement or v linotype class.

' stop will have a minimum movement incidental to the reception of each line by the first elevator, in consequence of which, wear is reduced to a minimum and efficiency of operation is attained.

To these and other ends, the invention cons sts in certain improvements and combinatlons and arrangements of parts, all as will be hereinafter more fully described, the features of novelty being pointed out particularly in the claims at the end of the specification.

In the drawings Figure 1 is a perspective view of a portion of the first elevator and the line delivery carriage of a typographical machine of the linotype class, the same having the present invention embodied therein; I

Fig. 2 is a front elevation of the upper end of the first elevator, the front 3' aw thereof being broken away, and a part of the cooperative line deliverycarriage, as shown in Fig. l; and

Fig. 3 represents a transverse section on the line 3-3 of Fig. 2.-

Similar parts are designated by the same reference characters in the several views.

the casting mechanism and subsequently ele ,vates the line for delivery to distributing mechanism, and the invention is also applicable generally to typographical machines having an element equivalent to the socalled first elevator used in machines of the The preferred embodiment of the invention is herein shown and will be described in detail. It is to be understood, however, that theinvention is not restricted to the precise construction shown, as equivalent constructions are contemplated and these will be included within the scope of the claims. 7

In the present instance, 1 and 2 represent the front and rear'jaws respectively of a first elevator of the kind generally used in typographical machines of the well known linotype class, these jaws being secured together in, fixed relation, at the lefthand end of the elevator by an interposed block 3. 'The opposite or righthand end of the elevator is open to receive the line of matrices,

and the inner faces of the jaws l and 2 are grooved to provide channels 5 and 6 to re' ceive the ears on the upper ends of the matrices and to thus support and guide the matrices The matrices M are preferably of the standard kind and the spacers S are also preferably of the standard wedge or expansible type. It will be understood that the first elevator is positioned at one level to receive the composed line of matrices and spacers, the line entering the elevator from the right (Figs. 1 and 2), after which the elevator descends until the rear jaw 2 is immediately above the mouth-piece of the metal pot, after which the metal pot is caused to move forward, bringing the mouth-piece thereof into contact through the mold with the character-bearing por-- tions of the matrices in the line, and after the cast has been made and the metal pot retracted, the first elevator rises, it passing above the level at'which'it received the line of matrices and reaching a point where the line is transferred from the first elevator for delivery to distributing mechanism. The line delivery carriage which introduces the composed line of matrices and spacers into the first elevator may be of the construction generally employed for this purpose, the

line delivery carrlage shown comprising a pair of'fingers 7 and 8 which are adapted to receive the composed line endwise between them, after which the fingers are shiftable in unison, thus carrying the line endwise into the first elevator. The finger 7 which is located at the rear or righthand end of the line, is carried by a slide which is composed of slide blocks 9, 10 and 11 which are adapted to reciprocate in a grooved guide which extends from the as sembling elevator'to the first elevator, these slide blocks being connected by rails 12, and the finger 8 is carried by slide blocks 13 and 14: which are connected by a rail 15 which isslidable relatively to the rails 12,, this arrangement causing the fingers 7 and 8 to move in'unison during the operation of the line .delivery carriage, but permitting relative adjustment of the fingers to vary the distancebetween them in order that they may be set to accommodate lines ofdi'fferent lengths.

It will be understood that during the operation of transferring a composed line of matrices and spacers from the assembling elevator to the first elevator, the line of matrices and spacers is carried into the first elevator by the fingers 7 and 8 which engage the opposite ends of the line, these fingers projecting downwardly through the space formed between the front and rear jaws 1 and 2 of the first elevator. Suitable devices are now in use for confining and preventing displacement of the righthand or rear end of the line after the same has been extend in parallelism, are shaped and,

spaced to fit and slide longitudinally in the matrix supporting channels 5 and 60f the These slide bars extend into first elevator. the first elevator from the lefthand side thereof and theirrighthand ends formabutments in the matrix channels against which the upper matrix supporting lugs of the foremost matrix in the line abut when the line is introduced into the first, elevator. The slide bars are'space'd apart sufficiently to straddle the finger 8 of the line delivery carriage. A tension spring 18 which may 1' be connected at one end to the cross piece 17 and at its opposite end to the spacing block 3, acts to urge the linest'o com r is{ ing the slide bar 16 toward the right *igs.

1 and 2), or toward the matrix receiving end of the first elevator. Means is provided for restraining movement of the line stopunder the influence of the spring 18, at certain times. Preferably and as shown, this restraining device comprises a friction plun ger 19 which is guided to operate vertically in the top of the first elevator and is provided with a spring 20 which always acts to force "the lunger downwardly "and to produce a frictional engagement between' its lower end and the top edge of one of the slide bars 16 of the line stop, the frictional resistance thus offered being sufficient, when r the plunger 19 is unrestrained, to prevent movement of the line stpf' under the influence of its sprlng 18., cans 1s also provided for retracting the friction plunger and thus permit the line stop to shift lon-- gitudinally in the matrix channels so that the line stop may accommodate itself to the length of the linereceivedbythe first elevator. Preferably, and as shown,the restraining or releasing device for the frictionfplunger comprises'a shaft 21 whichis pivoted on the top of the first elevator and, is provided with an arm 22 arranged to engage beneath a head 23 on the projecting upper end of the friction plunger and a second arm 24 which 7 is also fixed to the shaft 21 and isarranged to be engaged and depressed by a pin or projection 25 carried by the line transfer carriage,the pin or projection 25 assuming a position which will cause it to depress the arm 24:, and hence to lift or retract the friction plunger 19 when the line delivery carriage reaches "the limit of its lefthand'or line delivery movement.

The mode of operation of the line stop is as follows: The line, of matrices and spacers which have-been received between the fingers 7 and 8 of the line delivery carriage, from the assembling elevator, as is well understooch is shifted endwise by the line delivery. movement of the carriage,,the composed line being thereby introducedinto the first elevator. This movement of the line delivery carriage, which movement is fixedor, definite,'will bring the foremost or lefthand end matrix in the line into a position in the first elevator, whichwill be de termined by the length of the composed line. As the line delivery carriage approaches the limit of its line delivery movement, the pin 25 thereon engages and depresses the arm 24, thereby retracting the friction plunger 19. The line stop is thereby released and if the line received by the first elevator is longer than the immediately preceding line, the foremost or lefthand end matrix of the line will engage the righthand ends of the slide bars 16 of the line stop and will push the latter toward the left until the composed line has been fully introduced, into the first elevator. On the other band, should the line received be shorter than the immediately preceding line, the line stopnupon being released by the final portion of the line delivery movement of the carriage, will advance or shift toward the right, under the influence of its spring 18, until the righthand ends of theslide'bars 1'6 abut against the foremost or lefthand end matrixin the line. If the line received by the first elevator is of the same'length as the preceding line received by it, the line stop will be released when the line delivery carriage substantially reaches the limit of its line delivery movement, but the movement of the line stop will be very small or insignificant. In any case, the line stop will adjust itselfi automatically to the length of each line re ceived by the first elevator. Immediately following the reception of the line of matrices from the line delivery carriage, the first elevator descends to present the composed line to the casting mechanism, in a manner that is well known in the art, and the initial part of this descent carries the arm 24: downwardly out of contact with the tripping pin 25 on the line delivery carriage, in consequence of which the spring plunger 19 will immediately reengage the line stop and thus restrain it from movement in either direction, and the line stop will then confine the lefthand end matrix and prevent its displacement. The line stop remains in this condition during the subsequent ascent of the first elevator which carries the line up past the level at which. the line was received, to a position where the line is transferred from the first elevator to the socalled second elevator, from which the matrices are conveyed to the distributer, as is well understood by those familiar with the art, and the line stop is not released until the next succeeding line of matrices and spacers is delivered to the first elevator, whereupon it is released and it accommopflates itself to the length of the line, as beore.

It has been customary hereto-fore to em ploy a line stop which was held in set position by a set screw or clamp, the line stop being reset manually each time the line measure was changed. W Vith the advent of modern improvements in typographical machines of this class, it has become desirable cr -necessary to make these changes in line measure frequently, and the consequent necessity of manually changing the setting of the line stop to correspond with the changes in line measure of the machine has proven to be very inconvenient and it has caused the loss of much time. Also the patent granted to H. A. Armstrong, No. 1,108,825, granted August 25, 1914, shows and describes an automatic or self-adjusting line stop, but in that case the line stop returned to the righthand or entrance end of the elevator each time a line was transferred from the elevator. and each incoming line would push the line stop to the left for a distance equal substantially to the extent of movement of the line in entering the elevator, the line stop being held in the position to which it was thus advanced by friction. While that arrangement accommodated it self automatically to the length of the line, it has the disadvantage that it requires the line stop to be moved the full length of the line with each delivery of a new line to the elevator, this wide range of movement of the line stop tending to cause excessive wear, especially as the line stop was held in place by friction which precluded entirely free movement of the line stop. The present invention provides a line stop which possesses substantial advantages over those referred to. It is entirely automatic in its operation, thus avoiding inconvenience and loss of time involved in the manual setting of line stops as heretofore used, and the movement of the line stop incident to the reception of each line by'the first elevator is reduced to the lowest possible minimum. As long as the measure for which the machine is set is unchanged, the line stop will move only slightly and to an insignificant degree after the delivery of each composed line to the first elevator, and when the measure of the machine is changed, the line stop will accommodate itself to the difference in length with a perfectly free action and without causing any appreciable wear to itself or to the guides in which it travels, the extent of movement of the line stop involved in its resetting for any change in the measure or length of the line being only equal substantially to the difierence between the length of the-line, as

changed, and the length or measure of the line previously used.

I claim as my invent1on: I

associated with such elevator during its movements and positioned to encounter an incoming line, and means to position the line stop according'to the length of the incoming line.-

2, In atypographical machine having an elevator adaptedfor the endwise reception of an assembled line, a line stop within such elevator and tending to move in opposition to anincomingline, and means for holding I vator commences its descent. V

7. In a typographical machine of the linotype class having a first elevator, and aline the line stop in setposition.-

" 3. In a typographical machine ofthe lino type class having a first elevator, a line carria e adjustable to'receive assembled lines of di erent measures and operativeto deliver such lines to the first elevator, a' line stop carriedby the first elevator and having a tendency to move against the forward end of an incoming llne, and means controlled by'the' line carriage to position the line stop.

4. In a typographical machine havingan elevator, and means for transferring an assembled line endwise thereto, a line stop 'my hand in presence oftwo subscribing witmovable in the velevator and having a tendency to move toward one end of a line therein, and a device for restraining the line stop V from movement, said device belng releasable bysaid line transferring means.

5. In a typographical machine of the linotype class having a first elevator, and a car-V riage fordeliveringanassembled line thereto, a line stop tending to move toward one elevator, anda linejca-r ria'ge for delivering an assembled line thereto, a line stop carried by said elevator and tending to move against the end of an incoming line, a device for restraining the line stop, said device being re leasable by'the line carriage to permit the line stop to adjust itself to'the length of the line'andreengageable with the line stop-t0 hold it in adjusted positionwhen the elecarriage for delivering as assembled line thereto, a"l1ne sto carried by. the elevator and having a ten ency to movetoward an,

incoming line, a restraining device for the line stop, and means controlled by the line.

carriage for releasing the line stop fromsaid restraining dev ce when the line carriage ap-h proaches the limit'of its l'ine transferring movement. V In testimony whereof I have hereunto set nesses.

EDWIN INALTERIIERSON. Witnesses: r

" R. O. VAN HORN,

: IVI FRED C. CRAM.

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