US1478344A - Typewriter copyholder - Google Patents

Description

'Dec. H8 i923. 11,4?83441 A. S. M DOWELL TYPEWRITER COPYHOLDER Fil ed May 24. 1921 3 Sheets-Sheet 1 1 INVEN TOR. Mazaflflf/arel {Q ATTORNEY Dec. 18,1923.

A. S. M DOWELL TYPEWRITER COPYHOLDER 3 Sheets-Sheet 2 Filed y 24. 1921 EWENTOR.

% fi 6 a J A Mewdfinifiwid I BY 1Z5 A TTORNEY Dec. 118, 1923. 1,47%,344

A. S. M DOWELL TYPEWR I TER COPYHOLDER I 7 Filed May 24. 1921 3 Sheets-Sheet 3 ATTORNEY Patented Dece l8,

QJFFECEO ANDREW S. MACDOVELL, OF ROCHESTER, NEW YORK.

TYPEVJBITEE COPYHOLDEB.

Application filed May 24, 1921. Serial No. 472,217.

T (M whom it may concern:

Be it known that T, ANDREW S. MAoDow- ELL, ica, residing Monroe and vented certain in Typewriter Copyholders,

following is a specification.

My invention a citizen of the United States of Amerat Rochester, in the county of State of New York, have innew and useful Improvements of which the relates to typewriter copyholders, and is in the nature of a modification of the construction illustrated in my application Serial Number 869, .t31, filed March A principal object of the invention is to provide of a continuously running with instrumentalities cont the operating mo of the copyholder at will.

for connecting movable part an arrangement that permits the use operating motor, rolled manually tor with the Still a further object of the improvement is to afford mechanism operated so as to actua ment of the copyholder its travel and at variab Still a further ob to afford an ecoiiomi rangement for operati ment, or copy supporting me that can be readily te the movable elein either direction of le speeds if desired.

ect of my invention is cal and effective ar ng the movable elember, the same consisting of a vertically disposed rotary screw which is operative the movable element so as to ele it, according to the direct the screw.

The invention ly connected with vate or lower ion of rotation of also comprehends certain other improved features and advantages, all.

of which will appear cl in conjunct the novel features lowing description,

accompanying drawings,

early from the folion with the being pointed out in the claims following the description.

In the drawings: Figure 1 form of typewriter.

Figure 2 is a rear holder.

Figure 3 is a secti of Figure 2,

is a plan vi cation of the invention to a conve ew showing the applintional elevation of the copyonal view on line with the flexible shaft removed.

Figure 4 is a side elevation of the motor and controlling mechanism.

F Figure 'ure 5 is an end elevation of the same. dis a view similar to Figure 4,

with one pair of clutch members in engagement with each other.

Figure 7 is a secti of Figure 2.

onal view on line Figure 8 is a sectional view on line 8-8 of Figure 2, and

Figure 9 is a sectional view on line 9-9 of Figure 7,

The invention may be applied to different types of copyholders, illustration and with showing a sible forms, I

and for convenience of the sole purpose of practical example of Various poshave illustrated the type of copyholder which, embodies a stationary frame or supp ort on which is arranged to her, which in the present instance constitutes the driven element that is movable in a vertical plane although it will be obvious to those skilled in the art that the driven element need not necessarily support the copy and also,

may travel in some other direction than in a vertical plane.

Arranged at the top of the frame A is a bearing 6, and arranged at the bottom of said frame on a lateral support 0 is a beariiig d. Between said bearings b and c is disposed the vertical which is rotated in a worm or screw C manner that will be described presently. The screw G is operatively associated with the movable element B by means of a nut D that is carried by the copy supporting member B and travels therewith upwardly and downwardly on said screw a s the latter is operated in one direction or the other.

The screw C is provided at its lower extremity with a flat sided annular recess end portion 6 and an 7, while 9 is a socket carried by the flexible shaft E and cooperating with said flat sided end 6. The socket g is provided with an annular flange or rib h which engages said recess thus aftording a convenient detachable and interlocking connection between the flexible shaft E and the screw C. The

flexible shaft E is rotated in either direction, and at variable speeds if desired by the mechanism that will now be set forth in detail.

The copyholder rear of the typewriter as 1, while the controlling mechanism is pref is arranged usually in the shown in Figure erably positioned in juXta-relationship to the typewriter keyboard and this disposition of the parts is permitted by the flexible shaft E which leads from the controlling mecha nism to the copyholder, as indicated by Fig ure 1. Referring to Figure 4:, F designates an electric motor arranged beneath the typewriter table G, and fl is the motor shaft or driving element which is journaled at its outer end in bearing H and has fixed thereon the clutch members I, 1, preferably in the form of friction disks. The flexible shaft extends to a point between said friction disks 1, I, and has fixed thereon a clutch mem er preferably in the form of a friction disk J, arranged to engage selectively the disks I and I. To accomplish this flexible shaft E, see Figure 5, is journaled in a bearing K carried by a pivoted bracket L, said bracket being provided with a controlling handle M which entencs through an opening in the typewriter table and is readily accessible to the operator. A spring N acts to retain the flexible shaft and the friction element J in neutral position as shown in Figure l l hen the handle M is thrown to the right to engage disks J and I, as shown in Figure 6, the flexible shaft and the copy supporting member are operated in one direction, and when the handle M is thrown to the left to engage disks J and I, said parts will be operated in the opposite direction. ln some cases it may be desired to vary the speed of travel of the copy supporting member, and this is accomplished by shifting the friction disk 5 la dially with reference to the centers of the friction disks l, 1, thereby changing the gear ratio, as will be seen in Figrure To this end, the spindle U on which the handle M is mounted, is slid-able in bearings P and P, being retained in normal position as illustrated in Figure 5 by the springs Q and Q. To effect a change of speed. of the copy supporting member, for operating it faster or slower in either direction the iandle M is first shifted forwardly or rearwardly of the typewriter table, referring to Fi ure 1 thereby causin a longitudinal shifting of the spindle 0 before turning the handle to the right or left. "When the desired adjustment of the friction disk J is obtained to give the proper rate of travel, which will e determined by the operator through practice, the handle M is shifted to the right or left, bringing the friction disk J into engagement with the selected disk I or I, and causing a rotation of the flexible shaft and upward or downward travel of the copy supporting member as the case may be.

While I have described the iiivention with more particular reference to a specific embodiment, it may be modified in various ways, and this application is intended to cover any changes or departures coming within the scope of my improvement or of the following claims.

I claim:

1. in a typewriter copyholder, the combination with a copy supporting member movable vertically and adapted to support cop in a vertical plane, of means for operating the copy supporting member comprising a driven element, a continuously moving driving element, and manually controlled means for operatively connecting the driven element with said continuously running driving element at will.

2. In a typewriter copyholder, the combi nation with a copy supporting member mov able vertically and adapted to support copy in a vertical plane, of means for operating the copy supporting member comprising a driven element, a continuously moving drivingelement, and manually controlled means for operatively connecting the driven ele ment with said continuously running driving element will, said ast mentioned means including devices whereby the driven element may be operated at variable speeds while the driving element operates at a constant speed.

2-5. ln a typewriter copyholder, the combi nation with a copy supporting member movable vertically and adapted to support copy in a vertical plane of means for operating the copy supporting member comprising a driven element, a continuously moving driving element, and manually controlled means for operatively connecting the driven element with said continuously running driving element at will, said last mentioned means including devices whereby the driven element can be operated. in either of two oirections while the driving element travels continuously in one direction.

1-. In a typewriter copyholder, the combination with a copy supporting member movable vertically and adapted to support copy in a vertical plane, of means for operating the copy supporting member comprising driven element, driving element moving contini'lously in one oirection. and manually controlled means for operatively connecting the driving and driven elements so as to op crate the latter at variable speeds and in either of two directions.

5. In a typewri'er copyholder the combination with a copy supporting member movable vertically and adapted to support copy in a vertical plane of means for operating the copy supporting member comprising a continuously moving driving element, and manually controlled means for operatively connecting said first mentioned element with said continuously running driving element at will.

(3. In a typewriter copyholder, the combination with a copy supporting member m0vable vertically and adapted to support copy in a vertical plane of means for operatingthe copy supporting member comprising a erating the copy supporting member comprising a continuously moving driving element, and manually controlled means for operatively connecting said first mentioned element with said continuously running driving element at will, the vertically movable element being operable either upwardly or downwardly while the driving element travels continuously in one direction.

8. In a typewriter copyholder, the combination with a copy supporting member movable vertically and adapted to support copyin a vertical plane, of means for operating the copy supporting member comprising a driving element moving continuously in one direction, and manually controlled means for operatively connecting the driving element and the vertically moving element so as to operate the latter at variable speeds and in either of two directions.

9. In a typewriter copyholder, the combination with a copy supporting member movable vertically and adapted to support copy in a vertical plane, of means for operating the copy supporting member comprising a continuously moving driving shaft, a pair of clutch members fixed on the shaft, a driven shaft operatively connected with the vertically in vable element, and a clutch member carried by the driven shaft and movable into engagement with either of the first mentioned clutch members.

10. In a typewriter copyholder, the combination with a copy supporting member movable vertically and adapted to support copy in a vertical plane, of means for operating the copy supporting member comprising a continuously moving driving shaft, a pair of clutch members fixed on the shaft, a flexible driven shaft operatively connected with the vertically movable element, and a clutch member fixed on said flexible shaft, the flexible shaft and its clutch member being movable selectively into engagement with the first mentioned clutch members.

11. In a typewriter copyholder, the combination with a copy supporting member that is movable in a vertical plane for exposing lines of copy successively, of a vertically disposed screw operatively associated with the copy supporting member for elevating and lowering it, and operating means connected with said screw.

12. In a typewriter copyholder, the combination with a copy supporting member that is movable in a vertical plane for exposing lines of copy successively, a vertically disposed rotary screw, a nut carried by the copy supporting member and engaging the screw, and operating means connected with the screw for turning it in either direction.

13. In a typewriter copyholder, the combination with a copy supporting member that is movable in a vertical plane for exposing lines of copy successively, of a vertically disposed screw operatively associated with the copy supporting member, a continuously moving driving element, and manually controlled means for operatively connecting the driving element with said screw at will and driving the screw in either direction.

14. In a typewriter copyholder, the combination with a copy supporting member that is movable in a vertical plane for exposing lines of copy successively, of a rotary vertically disposed screw operatively associated with the copy supporting member, and a flexible shaft detachably connected with the screw for turning the latter.

15. In a typewriter copyholder, the com bination with a copy supporting member that is movable in avertical plane for exposing lines of copy successively, of a vertically disposed rotary screw operatively assooiated with the copy supporting member and acting to raise or lower the same, a flexible shaft detachably connected with said screw, a driving shaft, a pair of clutch members fixed on the driving shaft, and a clutch member fixed on said flexible shaft and arranged between the first mentioned clutch members, said flexible shaft being bodily movable to bring its clutch member into engagement selectively with the clutch members on the driving shaft and at different radial positions relatively thereto so as to operate at varying speeds and in either direction.-

16. In a typewriter copyholder, the com bination with a copy supporting member movable in a vertical plane for exposing lines of copy successively, of a rotary vertically disposed screw operatively associated with the copysupporting member, a continuously moving driving element, and manually controlled means for operatively connecting the driving element with said screw at will.

In witness whereof, I have hereunto signed my name.

ANDREI/V S. MACDQWELL.

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