US560989A - Line-indicator for copyists - Google Patents

Description

(No Model.)

0; L. HASTINGS. LINE INDICATOR FOR OOPYISTS.

Patented May 26 M/VE/VTUR I fiarZes lljiwio'nys ATTORNEYS.

"(DREW 8,6RAHAMFHOTG'UTHD WASHINGTON D6 UNITED STATES PATENT OFFICE.

CHARLES L. HASTINGS, OF JACKSONVILLE, ILLINOIS.

LINE-INDICATOR FOR COPYiSTS.

SPECIFICATION forming part of Letters Patent No. 560,989, dated May 26, 1896. A Application filed February 3, 1896. $erial No. 577,883. (No model.)

To all whom it may concern:

Be it known that I, CHARLES L. HASTINGS, a citizen of the United States, residing at J acksonville, in the county of Morgan and State of Illinois, have invented certain new and useful Improvements in Line-Indicators for Copyists, of which the following specification con tains a full, clear, and exact description, reference being had to the accompanying drawings, forming part thereof, in which Figure 1 is a perspective view illustrating my improvement. Fig. 2 is a detail perspective view of the same. Fig. 3 is a vertical section thereof. Fig. 4 is a detail section on line 4 4, Fig. 3. Fig. 5 is a detail section on line 5 5, Fig. 3.

The invention relates to that class of devices known as line-indicators for copyists.

The main object of the invention is to provide a line-indicator with a pneumatic operating mechanism.

A further object is to provide the rod of the operating-piston with a clamp which will engage the indicator-carrier strip in the forward throw of the piston, but disengage itself in the rearward throw and thus impart a stepby-step feed to the carrier bar or strip and the indicator carried thereby.

A further object is to regulate the length of this step-by-step feed to agree with the lines of the matter being copied; also to provide such an apparatus which will be simple and comparatively inexpensive.

The invention will be first described, and then specifically pointed out in the claims.

A represents a simple form of air-con1- 4 the rod B of which projects down through the lower end of the cylinder, where it is pivotally connected to a friction feeding clamp or grip E, which grasps and slides the carrier strip or bar F, which carries the indicator F, as will be presently described. This clamp E is formed in two parts E E the section E sliding in ways 0 in the slotted standard 0, and provided with ears 6, between which the adjacent inclined end of the clamp-section E is pivoted, the opposite end of the section E being pivoted to the piston-rod B The carrier strip or bar F slides longitudinally along the standard 0, which has an opening 0 in its upper end and a groove in its lower portion to guide said strip or bar. The strip or bar passes between the two clamp sections or members E E and under a friction-spring f, which prevents any accidental slipping. A similar spring 6 is secured upon the opposite side of the standard 0 and bears upon the clamp-section E and slightly retards its action, so that when the piston-rod B is forced down itwill tilt the clamp-section E and cause its inner end to bind the indicatorcarrier F to the section E, and then the clamp will be forced down and carry the carrier F along with it. As soon as the piston-rod B starts upwardly the clamp E will release the carrier F and move upwardly, and the carrier will remain stationary during such movement of the clamp.

The throw of the clamp E is limited by the slotted adjustable gage G, mounted on the standard 13 and having a set-screw g.

The lower end of the standard 0 is provided with two screw-threadedapertures 0 c and the arm 0 has a lateralprojection c at its inner end which enters either one of said apertures, while a screw 0 passing through the arm, enters the other aperture, 0 and secures the arm in place, the projection c preventing the arm from turning on the screw. Thus the arm C may be made to project to the right or the left of the standard 0. The attaching-clamp D may be adjusted in the arm 0 by means of the set-screw D By these several adjustments the indicator may be attached to a copy-holder at the right or left of the copyist, or it may be attached directlyto a book.

The air-compressor may be arranged for operation by the foot of the copyist instead of the hand, if desired, and any suitable compressor maybe usedsuch as a simple bulb, for instance.

The operation is as follows: The attaching? clamp D is secured to the upper edge of a book or copy holder, so that the line-indicating rod or bar F will register with the upper line of the matterbeing copied. The gage G is then adjusted so that the piston-rod B can only have a movement sufficient to move the indicator down the distance of one line. Now by a light tap on the piston-rod of the air-compressor the operating piston-rod B will be forced down, and its clamp or gripper E will seize the carrier-stripF and force it down as far as stop G will permit. The spring of the air-compressor piston will return it to its normal position, and this action will also raise or retract the piston B, rod 13*, and the clamp E, the carrier F being released and remaining in its adjusted position, and so on a step-by-step or line-by-line feed will be given the indicator F. After the indicator has reached the last line being copied it may be slid upward again by simply pulling on its upper end or pushing from its lower end.

Having thus described my invention, what I claim, and desire to secure by Letters latcut, is-

1. A portable pneumatic line-indicating apparatus, consisting of an aircylinder, provided with a piston and adapted for attachment to a copy-holder; a line-indicator, connected with the piston-rod an air-compressor, composed of a cylinder and base adapted for self-support; and a spring-supported piston, working therein, and having a projecting head; and a flexible tube which connects the said cylinder and air-compressor; as shown and described.

2. A line-indicating mechanism,comprising an attaching or supporting means, a cylinder mounted thereon and provided with a piston, a compressor connected with the cylinder for operating its piston, a carrieroperatively connected with said piston to be fed step by step in one direction thereby and a line-indicator carried by said carrier, substantially as set forth.

3. A line-indicatin g mechanism, comprising a standard or support, a cylinder mounted thereon and having a piston, a feed clamp or grip connected to the piston-rod, an indicator carrier strip or bar engaged by said clamp or grip and slid longitudinally step by step in one direction thereby; the rearward movement of the piston causing the grip or clamp to release the said carrienstrip, and means for operating said piston, substantially as set forth.

4. The combination with the supporting standard or frame and its attaching or sup porting means, of a cylinder mounted on said standard, a piston in said cylinder, a feed grip or clamp comprising two members pivoted together, one of said members sliding in ways on the standard and the other pivoted to the piston-rod for operation as described, a carrier strip or bar sliding along the standard and passingbetwcen the two members of the clamp or grip to receive a step-by-step feed thereby in one direction, and a fluid-compressor connected with said cylinder for operating its piston, substantially as set forth.

5. The combination with the standard or frame and its attaching or supporting means, of a sliding carrier strip or bar provided with the line-indicator, a spring frictionally engaging the said carrier, a feed clamp or grip Comprising a sliding member moun ted on the said standard and crossed by the said carrier-stri p, and a pivoted member pivoted to the sliding member to engage said carrier when moved in one direction and bind it to said sliding section, and mechanism for operatingthe said feeding clamp or grip, substantially as set forth.

6. The combination with the standard or frame and its attaching or supporting means, of a sliding carrier strip or bar provided with a line-indicator, a feed clamp or grip comprising a sliding and a pivoted member between the adjacent surfaces of which the carrier passes to receive a step-by-step feed the refro1n,an operatingmechanism connected with the said pivoted member, and a gage for lim iting the throw of the feed clamp or grip the distance between two lines, substantially as set forth.

7. The combination with the slotted standard, of the feed clamp or grip having a sliding section mounted in said slot and a pivoted section pivoted to said sliding section and operating mechanism connected with the outer end of said pivoted section, a friction-s n-ing bearing on said sliding section, and a sliding carrier bar or strip passed between the two clamp or grip members, receiving a forward step-by-step feed therefrom and provided with an indicator bar or rod, substantially as set forth.

8. The combination with the standard. or frame having two threaded apertures, a transverse reversible arm having a lateral projection and a set-screw engaging said apertures, and an attaching-clamp having a post on which the outer end of said arm is mounted, of the carrier-strip having an indicator bar or arm, and a step-by-step feed mechanism for said strip, substantially as set forth.

9. A line-indicator comprising a frame or standard, an attaching or supporting means therefor a carrier-strip and its indicator-bar, a sliding clamp or grip mounted on the said frame or standard and imparting a step-bystep feed to the said carrier-strip, a cylinder having a piston connected with said feed clamp or grip, a compressor having a springseated plunger or piston and a length of flexible tubing connecting the compressor with said cylinder to project and retract its piston and the grip or clamp connected therewith, substantially as set forth.

CHARLES L. IIASTIN 1S.

\Vitnesses:

J OHN F. CLARK, GEORGE L. MERRILL.

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