US796770A - Space-bar for linotype-machines. - Google Patents

Description

No. 796,770. PATENTBD AUG. 8, 1905. J. H. STREET & G. KARSTEN.

SPACE BAR FOR LINOTYPE MACHINES.

APPLICATION FILED DEC. 12, 1904.

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al 5286868, )5. 2141, $07M 5} ZMWWML UNTTED STATES PATENT OFFICE.

JOSHUA HENRY STREET AND CHARLES KARSTEN, OF CHATTANOOGA,

TENNESSEE.

SPACE-BAR FOR LlNOTYPE -lVlACHINES.

Specification of Letters Patent.

Patented Aug. 8, 1905.

Application filed December 12, 1904. Serial No. 236,642.

To all whmn it may concern:

Be it known that we,JosHUA HENRY STREET and CHARLES KARsTnN, citizens of the United States, residing at Chattanooga, in the county of Hamilton and State of Tennessee, have invented certain new and useful Improvements in Space-Bars for Linotype-Machines, of which the following is a specification.

This invention relates to improvements in space-bars for justifying lines of type-matrices of linotype or other type-casting machines. In the use of space-bars for these machines as heretofore constructed it is found that there is a great deal of lost motion between the stationary and movable members, which permits of their separation so as to allow metal to be pressed in this space in casting, thereby making a bad line and allowing the movable member to get out of alinement with thestationary one; and the object of this invention is to take up this lost motion, to prevent the separation of the members, and to cause the parts to move true with each other.

The objects of the invention are accomplished by the mechanism illustrated in the accompanying drawings, in which- Figure 1 illustrates a perspective front View of a space-bar with this invention applied thereto, showing the movable member in its lowest position. Fig. 2 is a perspective front View of same, showing the movable member in a partially-raised position with relation to the stationary member. Fig. 3 is a cross-section on the line 3 30f Fig. l, and Fig. 4 is a cross-sectionthrough the thick end of the movable member.

In the drawings the same reference characters relate to the same or corresponding parts in all of the views.

4 is the stationary member, which is provided with the lateral supporting ears or lugs 5 for holding the member in place between the matrices. This stationary member is made tapering from the upper broad end, having the ears 5, down to its lower end. 6 is the movable member, which is similarly tapered in the opposite direction. These two parts have their thin ends disposed in opposite directions with respect to each other, as usual, and are slidably secured together, whereby the combined thickness of the two may be varied by raising and lowerng the movable member, and the taper of the two parts is such as to keep their outer faces constantly parallel with each other.

The stationary member 4 has the V-shaped recess 7 of the same character and for the same purpose as in prior space-bars, and at the bottom of this recess is the longitudinal slot 8, with parallel beveled edges, which extends down to the usual plate 9, that is riveted to the stationary member and has beveled edges to engage with the correspondingly-beveled edges of the slot 10 in the movable member 6. The movable member 6 has the longitudinal slot 10, which is made with beveled edges in the usual way, and at the thin end of the said member between said end and the slot is the small plate 11, which may be an integral part of said member, but will preferably be a separate plate riveted to said member. This plate 11 its in the above-described slot 8 and hlas beveled edges to engage those of the said s ot. the usual thin portion 12 at its lower part, which is reduced enough to permit the sliding over it of the reinforcingplate 9 of the stationary member, and saidmovable member has the rivet 1 3 to prevent the complete separation of the two members. This rivet can be removed when it is desired to replace the stationary member of the space-bar.

From the foregoing description it will be seen that a space-bar is provided in which the V-shaped groove in the end of the stationary member will direct a dovetailed plate 11 into its slot 8, which will prevent the separation of the members and will hold them true and even.

Having thus fully described this invention, what is claimed as new is In a space-bar for linotype or similar typecasting machines, the combination of a sta tionary member consisting of a single piece of metal tapering from one end to the other, provided at its thick end with a V-shaped recess which terminates with an extension having beveled parallel sides, supporting lugs or ears for holding said member in a stationary position, said plate having an extension with The movable member is provided with parallel beveled edges, and a movable mem- 1 hands and seals. at Chattanooga, Tennessee, ber tapering from one end to the other having this 3d day of December, A. D. 1904:. beveled ways engaging the beveled extension JOSHUA HENRY STREET [In 3.] 1n the stationary member and said movable CHARLES KARSTEN. [11. s] member having a beveled extension to engage the beveled edges of the recess extension in Witnesses: the stationary member. CHARLES C. MORRISON,

In Witness whereof We have hereunto set our F. O. WERT, Jr.

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