US1616854A - Copyholder - Google Patents

Description

Feb; 8, 1927.

Y M. HUNT Filed Sept. 29. 1925 ATTORNEYS. Q

Patented Feb. 8, 1927.'

ti er 1vrABnLLn HUNT, or Los rnennnsfionmronnrli.

- ,oorYnoLnnn.

Application filed September 29, 1925. Serial No. 59,276.

This-invention relates to acopy-holder'for.

for copying, soas to insure thatboth the'exposed pages will he maintained substantially in the same plane throughouttheir entire width; also to provide means for supporting the book, which can be readily ad usted to adapt it to "the particular point in the book at which the pages are exposed.

A further object of the invention is to provide simple means for efiecting a stepby-step downward movement of the marker as the copying proceeds, with means for operating the same from either s1de of the copy-holder; also to provide simplemeans for guiding the marker and effecting its automatic return to anelevated position; also to provide means for regulating the amount of each step-by-step movement of the marker, to adapt the samefor use where the lines are different distances apart, for example,single spaced or double spaced.

Furthe'r objects of the invention will appear hereinafter.

The invention consists in the novel parts and combination of parts to be described hereinafter, all of'which contribute to produce an efficient copy'holder.

In the drawings:

Fig. 1 is'a perspective of a copy holder embodying my invention, certain parts. being broken away, or indicated in dotted outline.

'Fig. 2 is a vertical section taken about'in the plane of the line 2-2 of Fig. 1, and particularly illustrating details of the mechanism for advancing the markerbar with a step -by-step movement, and "for regulating the amount of its periodic movement.

Fig. 3 is a perspectiveillustrating further details and showing a portion of one of the cables with its dog supporting its-adjacent end of-the marker-bar.

'In practicing my invention I provide means supported-in a'frame, operating to l ieplate of the frame.

back of the open book and constructed so that t will hold the .exposed pages of the book 111 substantially the same plane; I also:

provide a line marker inovableidown the front of rthe book, with means for, guiding the same. At a suitable point,.preferably atthe lower and forward portion of the frame, I provide means for advancing the marker with a step-by-step movement.

In order tosupport thevbook, I prefer to provide twoerests, one of which supports the right side of thebook', and the other;the left side, and these rests are made movable so that as the copying rogresses' through the pages of the "book, t e right hand rest may she moved forward at will, and the-left hand rest maybe moved backward .at will,-to.ac

commodatethe numberof pages of the book located in front of each rest; this" enables me to maintainrthe exposed pages of the book substantially in the same plane. lnaddition to thisI provide cables disposedlrespectively at each side of the frame for carryingthe marker bar, and associated vWith these'cables I provide means operating when'the marker reaches the end of thepage, to'pull the'oables back and return the ma-rker-bar to an elevated position.

In order to accomplish this, I provide-a frame 1 constructed tourest upon a table. This framehas a large opening 1 at the front, at which .theexposed pages 1"v of the book, or other articlebeingcopied -is located. In order to insure that the exposed pages 1 will be held in substantially the same plane,-I prefer to provide' twobacking plates 2 which are guided into positionback ofthe pages; they may he slid downwardly into place through slots 1 "formed in the to In order to enable the marker to be vanced a fixed amount at each: actuation, I

provide a depressible member guided so move dogs 4 downwardly so-asto carrythe marker-bar ll-down the front ofthe-book with astep'by stepmovement. These plungers are returnedby coil'springs 3 andoperate to rotate the corresponding ratchet wheels 5 through the medium of a pawl 14 pivoted to the'lower end of the stem of the plunger. These ratchet wheels with the paWls 14, constitute a ratchet-and-pawl de vice for rotating adrum 6 which may extend all the way across the front of the frame.

When the drum is rotated it winds up cables 7 which extend up within the frame back of the upright side-bars 1 which form the sides of the opening 1*. These cables are guided around suitable guide pulleys 10 on the frame, and suitable means is connected with their ends to exert an upright tension in the cables at the front. For this purpose I prefer to provide a weight 8 attached to the rear end of each cable which hangs vertically down, and these weights may he guided in suitable guides 8 which constitute the back legs of the frame;

A small spring 14 is associated with each pawl 14 and. holds it against the ratchet teeth.

The dogs 4 are rigidly attached to the cables 7 respectively, and each dog is in the form of a sleeve with a fin or plate 4 which projects outwardly through a guide-slot 1 which extends up along the corresponding side-bar 1;

A detent pawl 9 is provided which engages the teeth of one of theratchet wheels 5, being held in an engagement with it, by a spring 9*. By pressing down on the key 9* this detent pawl may be released, whereupon the weights 8 will unwind the cables from the drum 6 and return the markerbar 11 to an elevated position.

Back of the opening 1 I provide two rests 12, one of them being at the left side, and the other at the right. These rests are in the form of inclined plates, each plate having a flange 12 at its lower end constituting a base, and resting upon the bottom plate 1 of the frame.

Any suitable construction may be provided whereby, as the copying progresse through the book, the right hand rest may be moved forward, and the left hand rest may be moved backwardly to accommodate the change in the number of pages at each side of the book. In the present instance I simply provide a plurality of sockets 12 in the bottom plate 1 and associated with each base plate 12? I provide a pin 12 which may fit into the proper socket to hold the book rest at the desired point.

It should be understood that even without the plates 2,. the book-rests 12 can be so positioned that they will operate to hold the exposed pages 1 of the book in the opening 1 and in substantially the same plane with each other. However, I prefer to provide the backing plates 2 which slide into position back of the exposed pages and hold them precisely in the same plane.

The frame 1 is left open on its rear side so as to permit the book to be put in place from the rear.

If desired the marker-bar 11 may be constructed so that it may be removably attached to the dogs 4. In order to do this, each end of the 1narker-bar 11 may be provided with a slot 11 which fits into a corresponding slot 4 cut in the upper edge of the fin 4.

In order to provide means for regulating the amount of movement given to the bar 11 after copying each line, I provide a stopshaft 13 (see Fig. 2), which is rotatably mounted in the side walls of the frame and provided on the outside ofthe case with a rotatable thumb-head 13 Under each pawl 14 this shaft is provided with a short arm forming a stop 13". In the position of the stops shown in Fig. 2 in full lines, the down ward movement of the pa-wls 14 is unobstructed. This enables keys 3 to give the drum 6 the maximum amount of angular rotation, which may correspond to a double spaced line arrangement. If the thumbhead 13 is rotated towards the left, the stops 13* will move into position under the pawls 14 as indicated by the dotted lines in Fig. 2. In this position the stops 13 will restrict the movement of the plungers 3 so that they can only move the stop bar through a single line space.

It is understood that the embodiment of the invention de cribed herein is only one of the many embodiments this invention may 1 take, and I do not wish to be limited in the practice of the invention, nor in the claims, to the particular embodiment set forth.

h at I claim is:

1. In a copy-holder for holding an open book, the combination of a frame, means supported in the frame, operating to lie back of the two exposed pages for holding the same in substantially the same plane, a line marker. means for guiding the same at the front of the book, and means for advancing the marker with a step-by-step movement down the front of the book.

2. In a copy-holder for holding'an open book, the combination of a frame, means for supporting the book, a pair of plates supported in. the frame operating tolie back of the two exposed pages for holding the same in substantially the same plane, a markerbar extending across the exposed pages,

neregssa I s *front of the 'book,-means'for advancing the marker-with a step-by-step movement down the'ifront of the-book, and meansfor returnimgithe marker to an elevated position.

"4. Inacopy-holdeiy the combination of a I 'frame, a pair of-rests' constructe'd'to receive 'the flaps of the cover of an openbook, means V I for holding the rests in different positions so asto maintain the exposed pages of the bookin substantiallythe sameplane, a line .marker and means for guiding the,marker down the exposed pages.

5. In a copyrholder, the combination of'a frame having a front opening, rmeans for supporting the page to be copied at the front opening, a marker-bar extending across the front opening, said frame having means located at each side of the opening for guiding the marker-bar, means for moving the ,marker-bar downwardly with a step by-step 'movement, a cable vat each side of the frame connected with the marker-bar and guided on the frame, returning means connected with each vcableland exertingforce in a direction to pull the marker-bar upwardly, and

detentmeans for normally preventing the operatlon of said returning means, constructed to be released at will to permit the i of the exposed pages at the front of the book,

and a marker guided to move down the front of the book.

7. In a copy-holder, the comblnatlon of a frame having a "front opening, means for supporting an open book in the frame back of the op'ening,'--means for holding the 'exposed pages of' thebook substantially in. the

same plane, a mark-er bar"extending"across the .front opening, cables connected respectively with the ends of the marker-bar, guided on the frame, a ratchet-and-pawl device, with means controlled thereby for winding up the cables to advance the marker-bar with a step-by-step movement downwardly,

a detent pawl cooperating with the ratchet and-pawl device to hold the marker-bar in any position to which it has been advanced, and means connected with the cables for returning the marker-bar to an elevated po sition when the detent pawl is released.

8. In a copy-holder, the combination of 'a frame with upright side-bars at the front, means for holding the page to be copied in position between the side-bars, dogs guided respectively along the side-bars, cables disposed respectively adjacent the side bars and carrying the dogs, means for winding up the cables with a step-by-step movement to advance 'the marker-bar down the page, "detent means for holding the marker-bar "111 any "position-to which it has been advanced,

and means associated with the cables'for-returningthe marker ba-r to an'ele'vate'd position when the d-etent deviceis released.

9. In a copy-holder, the combinationof a frame .with'upright side-bars at 'each side having slots respectively therein, means "for 'holdinga' page to be copied'in positionbe tween the side-bars, cables disposed respectively adjacent the side-bars, dogs carried respectively by, the cables and extending throughthe slots, a marker-barsupported on the, dogs, av drum with means for rotating the same with a step bysstep,movement--to" wind up the cables,;detent means for holding the marker-bar inany: position in which fit has been advanced, and 'm'eans associated with the cables for "returning the -marker-' bar to an elevated position whenthe' detent means is released. p I

'10. ;In a copy-,holder for holdmg an open "book, the combination of a"f'rame,-a right hand book-rest supportedgin the framefo-r supporting the right-hand side of the-open. book, aleft hand book-rest operatingto support the left side of the open book, said-right hand book-rest being -movable toward the front and said left hand 'book-restfbeing movable toward the-rearto enablethe ex-' posed pages at the front of tliebook-to'be book, a: left hand book-rest operating to support the-left side of'the open book, said right hand book-rest" being movable toward the front andsaidle'ft handbook rest'being movabletoward the rear to I enable the exposed pages at the front of the book to be maintained in substantially the same plane,

a marker with means on the frame for guidingthe samedown the book, means for controlling the marker, and a pair ofplates guided in the frame to come into position back of the exposed pages and operating to maintain the exposed pages in substantially the same plane.

12. In a' copy-holder, the combination of a frame having upright side-bars, cables associated respectively with the side-bars, a marker-bar supported on the cables, a drum at the front and lower portion of the frame for winding up the cables, a depressible memher having a limited amount of movement for rotating the drum with a step-by-step holding then'iarker-bar in any position to which it has been advanced, means for guiding the cables along the frame, and means connected with the ends of the cables for exerting tension in the same and operating to return the marker-bar to an elevated po sition when the detent pawl is released.

13. In a copy-holder, the combination of a frame having upright side-bars, cables as sociated respectively with the side-bars, a marker-bar supported on the cables, a drum at the front and lower portion of the frame for winding up the cables, means for rotating the drum with a step-by-step movement to take up the cables and move the markerbar downwardly, a detent pawl and ratchet associated with the drum for holding the marker-bar in any position to which it has been advanced, means for guiding the cables along the frame, and weights connected with the ends of the cables and guided on the rear of the frame for exerting tension in the cables, and operating to return the mark er-bar to an elevated position when the detent pawl is released. 14:. In a copy-holder, the combination of a frame, means for supporting the article to becopied in the frame, a marker-bar guided on the frame, cables guided on the frame and carrying the marker-bar, a drum ,mounted at the front and lower portion of the frame for winding up the cables to move the marker-bar downwardly, and a ratchet wheel at each side of the frame, and rigid with the drum, a hand-operated key at each side of the frame with a pawl cooperating with its corresponding ratchet wheel to rotate the drum and move the marker-bar.

15. In a copy-holder, the combination of a frame, means for supporting the article to be copied in the frame, a marker-bar guided on the frame, cables guiding on the frame and carrying the marker-bar, a drum mounted at the front and lower portion of the frame for winding up the cables to move the marker-bar downwardly, a ratchet wheel at each side of the frame, and rigid with the drum, a hand-operated key at each side of the framewith a pawl cooperating with its corresponding ratchet wheel to rotate the drum and, move the marker-bar, a detent pawl associated with one of the ratchet wheels for holding the marker-bar in any position to which it has been advanced, and means associated with the cables for returning the marker-bar to an elevated position when the detent pawl has been released.

16. In a copy-holder for holding anopen book, the combination of a frame, a pair of book-rests mounted in the frame respectively supporting the cover-flaps of the books, said frame having a bottom plate supporting the rests, and having a plurality of sockets extending in a front and rear direction, and a removable pln corresponding to each bookrest and cooperating with the sockets to hold the rests in any adjusted position.

17. In a copy-holder, the combination of a frame, means for holding the article to be copied in the frame, a marker-barwextending across the front of the frame, cables disposed respectively at the side of the frame and carrying the marker-bar, means for guiding the cables on the frame, a drum at the front and lower portion of the frame for winding up the cables, a ratchet wheel carried by the drum at eachside of the frame, a depressible plunger carried by the frame at each side and having a pawl for engaging its corresponding ratchet wheel, and cooperating with the drum to wind up the cables and move the marker-bar downwardly,

a transverse stop-shaft mounted in the framebelow the plungers, and carrying stops movable into positlon to cooperate with the plunger-s to l1m1t their downward movement and enabling the plungers to rotate the drum through different predetermined angles, and

MABELLE HUT.

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