US1166869A - Copy holder and display apparatus. - Google Patents

Description

COPY HOLDER AND DISPLAY APPARATUS.

APPLICATION FILED MAR. 27. I9I3.

WQ; Alforuey A. E. 'vANcE & o. c. MORTRUDE.

COPY HOLDER AND DISPLAY APPARATUS.

APPLICATION FILED MAH. 2?. 1913.

2 SHEETS-SHEET 2.

INVENTOR Allomey Patented 52111.64, 1916. 4

ANDREW E. VANCE AND OLIVER C. MORTRUDE, 0F SIOUX CITY, IOWA.

COPY HOLDER AND- DISPLAY APPARATUS;

To all whom t may concern.'

Be it'known that we, ANDREW E. VANCE and OLIVER C. MORTRUDE, citizens of the United States, residing at SiouX City, in the county of Woodbury and Stateof Iowa,

have invented'certain new and useful Iniprov'ements in Copy Holders and Display Apparatus, of which the following is a speciication.

vOur invention relates to a copy-holder and display apparatus, and especially to a device of this kind used in the teaching of the 'art of typewriting or in the acquiring of greater speed in operating the keys of the typewriting machine. s We have found that the art of typewriting can be taught to better advantage by the use of copy means that move or travel while the student or typist is operating the typewriting machine; and to still better advantage when a shield as set forth hereinafter, is employed in connection with the movable copy means.

Various advantages are gained through the use of the copy-holder employing movable copy means as referred to. A device employing such means forms the basis of this application, and the, varipus advantages and functions will beset forth at length hereinafter.

One object of the invention. is to provide in a copy-holder, means whereby the copy being duplicated or copied, may be positively moved or willl travel while the typist is operating the typewriting machine.

Another object of the invention is to provide a shield in connection with the said copy-holder means.

Still another object of the invention is to provide means whereby the speed at which the holder means travels, may be regulated or gaged according to the speed at which the operator or typist is operating the typewriting machine. v

A further object of the invention is to providel the holder means in the form of a slidable carriage and means to positively slide or shift the carriage. e.

A still further object of the invention is to provide suitable escapement means for the platen or roller employed on the carriage which will be opera-ted by suitable parts during the travel or sliding movement of the carriage.

Various other objects will appear hereinafter from the description following taken Specification of Letters Patent.

Application led March 27, 1913.

Patented aan. 4., i916.

Serial N0. 757,205.

in connection with the accompanying drawcasing or housing broken away to expose the driving mechanism thereof Fig. 2 is a side elevation of the housing and gearing mechanism attached thereto; Fig. 3 is a rear elevation; Fig. 4 is an enlarged detail view through the carriage parts, and shield employed in connection therewith; Fig. 5 is a detail plan view illustrating the escapement mechanism; and Fig. 6 is a detail view of part of the escapement lever specifically showing the mounting of the pawl thereon.

Throughout the views of the drawings, like reference characters designate like or similar parts.

Referring specifically to the drawings, 1 designates a base and2designatesacasing'or housing supported thereon. The base member, it will be seen by reference to Fig. 2, projects beyond the front of the housing as at 3 to provide a portion upon which a typewriting machine may rest or be supported. This base 1 also projects rearwardly beyond the casing in order to support gearing, as will be hereinafter described.

Upon the top of the casing 2 is rigidly fastened a grooved plate or bearing-member 4 towhich is rigidly fastened as by set screws at 5, a suitably shaped and sized shield designated 6, and which it will be noted rises from the bearing member.

Directly over andL distanced froml the grooved bearing plate member 4 is a similar grooved bearing plate member 7 which may be supported in proper position in any suitable manner, andas shown is supported by the brackets 8 which are suitably fastened as at 9 and 10 respectively to the several bearing members. Intermediate the bearing members 4 and 7 is slidably mounted a grooved bearing member orbar 11. Balls or other anti-friction members 12 are preferably mounted in the grooves of the bearthe platen or roller, a guide shield 14 mayl be employed, and' also a guide and feed and roller are seen in Fig. 4. In connection with the platen, guide fingers or members of f any suitable type as suggested at 16, are preferably desirable.

To the bar or bearing member 11 is rigidly fastened an arm 17 to which is pivoted as at 18, a pitman or arm 19 whose inner end is provided with a notch or formed into a hook as at 20. This notch or hook at different times is adapted to engage projections or pins 21 which are mounted upon a drive disk 22 on opposite sides of the axis thereof and in diametric alinement. This drive disk is provided with a plurality of annular racks 23 each having teeth as shown. The rack teeth are adapted to mesh with the teeth of a slidable pinion designated 24. The several racks, it will be noted, are arranged concentric with the axis of the disk and of course are of different diameters; hence the speed at which4 the disk is driven can be regulated by shifting the pinion 24 into engagement w ith the teeth of any of the racks desired. The disk 22 is mounted in any suitable manner as by means of a shaft 25 having bearing in the casing 2.

The pinion 24 is slidable on a rotatable shaft 26 and may be secured at any suitable location thereon through the adjustment of a set screw 27 extending through a screw threaded opening in a collar 28 of the pinion. Shaft 26 has rotatable bearing in a block 29 and a bracket 30. A bevel gear wheel 31 is keyed to the shaft 26 and meshes with the bevel gear wheel-32 keyed on a shaft 33. Shaft 33 extends through the casing 2 and has keyed thereon a pinion 34 which meshes with the pinion 35 mounted on a. shaft 36 on which is also mounted a pulley 37. Driving means which may consist of a motor suchas an electric motor 38, is mounted within the casing 2 and on the main'shaft thereof is provided a pulley 39. A belt 40 passes over the pulleys 37 and 39.

Suitable means is employed to restore the carriage to position preparatory to moving across the machine and may be as follows. To the bearing member 11 is fastened as at 41, a flexible cord member 42 which passes over a guide pulley 43 supported from the casing by means of a bracket 44. The outer end of the cord member 42 has connected thereto a weight 45 which is slidable vertically on a rod 46 ofa suitable bracket 47 supported from the casing v2.

Suitable escapement means is employed for rotating the platen or roller 13 a suitable extent after the end of a line on the copy has been reached, yso that the succeeding line will be properly presented. Of such means as shown, 48 designates a shifting lever which is pivoted on a pin or short shaft 49 fastened to one of the brackets 15. A housing or box 50 is carried by the lever 48 beyond the pin and to this housing 50 and pin 49 is fastened opposite ends of a return spring 51. Projecting from the housing is a slidable pawl or tooth 52 which is normally pressed exteriorly of the housing, as shown best in Figs. 5 and 6, by means of a spring 53 located within the housing. On the end of the platen adjacent the shifting lever, is provided a band or the like having a plurality of serrations or teeth 54 thereon, as best seen in Figs. 3 and 5. The pawl 52 is adapted to engage the teeth 54 and by shifting thereof, partially rotate the platen 13.

It is desirous of shifting the lever 48 automatically during movement of the carriage and specifically while it is adjacent its innermost position. To this end lever 48 at its lowerend is formed into a hook 49. With this hook 49 is adapted to coperate, a hook 50, suitably fastened to the housing 2 as at 55. This hook 50 is made of resilient or spring metal so that the Vlever 48 can move across the same in one direction without being shifted. After passing the spring hook 50 in said direction, the same springs upwardly so that it will engage the hook 49 on its return movement and cause the same to tilt before passing the same. 1n order to hold the spring hook rigid for this latter movement, a brace pin 56 ,is provided .as

, shown in Fig. 3.

The shield 6, it will be noted, extends upwardly and over the platen 13, as best seen in Fig. 1, so that the same will shield the proper portion of the platen desired. The copy is shown in Fig. 1 as emerging or moving from behind the shield 6, and is designated 57. The usual hand gripping knobs for the platen are provided on the shafts or shaft 14 and designated 58.

In using the device, the typewriting machine preferably rests upon the portion 3 and accordingly, the copy carried by the platen 13 is so arranged that it is in or above the plane ofthe eyes. Motor 38 isfv started, which drives the belt 40 and accordingly pulley 37, shaft 36, pinions 35 and 34, and shaft 33. Shaft 33 through the medium of bevel gears 31 and 32, drives vertical shaft 26 and accordingly the pinion 24 and disk 22; the pinion 24 having previously been moved into mesh with the teeth of the rack desired. As the disk 22 revolves, one of the pins 21 engages the notch of pitlman 19, which through its connection withvthe carriage, shifts or draws the carriage across the casing and accordingly draws or moves the copy ,57 carried by the platen ,or the carriage. 1t will be seen that prior to the starting of the shifting movement of the carriage, that the same can be arranged so that the copy will be completely obscured by the shield 6 and that as the carriage moves laterally relati'vely to the stationary shield, that the matter to be copied is gradually displayed, a

. letter at a time. As the carriage moves lat` erally, due to the connection of cord 42 thereto, the weight 45 is raised. When the carriage has been moved its-limit, the pin 21 not engaged by the notch 20 of the pitman, strikes or abuts against the pitman Yand accordingly raises the same so as to dsengage the other pin. Thereupon weight 45 descends on the guide ro'd 46 and moves -With it the carriage, thereby restoring the brace pin 56, causing lever 48 to be tiltedand accordingly the pawl 52 to act against the adjacent or engaged tooth 54, thereby turning the platen the proper extent to bring the next line to be copied into proper position. The return spring 51 restores the parts to proper position after the shifting of the platen is effected.

In connection with the use of the copyholder and display apparatus, it will be stated that the copy is at all times in or above the plane of the eyes of the operator of the typewriting machine, so that in order to follow the copy, the eyes cannot be lowered whereby a proper gage of the location of the keys and skill or ability to strike or operate the proper keys, is necessary to operate a typewriting machine. Such a device as the one of the present application is especially desirable in teaching the touch system oftypewriting, with which system of course, the eyes at all times are trained upon the copy and do not have recourse to the keys, thus effecting considerable saving of time and enabling the operator of the typewriting machine to acquire greater speed in the operation of the keys.

The present invention is especially useful for testing purposes. When thus used, a copy 'is followed having a. known number of words, the number being determined according to the length of time required for the test and the speed atwhich the machine operates. If the student or other operator of the typewriting machine cannot follow the pace set by the apparatus or moving copy, he must necessarily fall behind in his work and fail. shielding the copy as it does, prohibits the operator commencing the duplicate of the copy on the typewriting machine, until the motor is started, and also enables an even degree of speed to be maintained upon the typewriting machine inasmuch as vthe copy is displayed, a letter at a time. This is a The shield obscuring or very desirable feature for speed tests, especially where there are a number of students, .as it enables the copies for the various students tobe displayed and started simultaneously. As the foregoing advantage and use explains the function of the device, other advantages and uses will suggest themselves to persons skilled in this art, and hence need not be set forth here.

The apparatus disclosed is of course, subject to mechanical refinements and to the employment of attachments and other desirable additions which have been omitted in the drawings for the sake of clearness, and as it is necessary to disclose only the salient features. Such refinements and changes in the construction of the apparatus described as fall within the spirit and scope of the appended claims, are reserved.

Having thus described our said invention, what we claim as new and desire to .secure by Letters Patent is:

l. In a copy-holder, a carriage, a drive member, projections on said member arranged on opposite sides of the axis thereof, a pitman connected to saidy carriage alternately engaging one of said projections and tripped by the other of said projections, and return means for said carriage.

2. In a copy-holder a casing, a driving disk carried by said casing, a carriage member mounted upon said casing, an arm connected with said carriage, a pitman pivotally connected with said arm and releasably connected with said driving disk', means carried by said disk for disconnecting said pitman from said disk when said carriage reaches the extremity of its movement in one direction, means for returning said carriage to its original position when said pitman is released from said disk, and means for rotating said disk.

3. yIn avcopy-holder a casing, a carriage slidably connected with said casing, a rollerrotatably supported by said carriage, anescapement for turning said roller including an operating lever, means carrled by sald casing for engaging said lever to move said lever and rotate said roller when said carriage reaches the extremity of its movement in one direction, driving mechanism carried by said casing, means releasably connecting said carriage with said driving mechanism, and means for returning said carriage to its normal position when said first-mentioned 'means isreleased from said driving Vmechamsm.

4. In a copy holder amovably mounted carriage, a rotary drive member, a pitman connected with said carriage, means for yieldably holding said carriage in a normal position, means carried by said rotary drive member for engaging said pitman to move said carriage out of its normal position, and means carried by said rotary drive member for moving said pitman out of engagement With the engaging means carried by said ro- Y tary drive member.

5. ln a copy holder a movably mounted carriage, means for yieldably holding said carriage in a normal position, a rotary drive member, means for automatically connecting said carriage with .said drive member to permit said drive member to move said carriage out of its normal positionJ and means for releasing said carriage from said drive member to permit said rst mentioned means to return said carrlage to lts normal position. y

6. In a copy holder a movably mounted carriage, means for yieldably holding said carriage in a normal position, a rotary driving element, an arm extending from said carriage for releasably engaging said driving element to move said carriage in one direction, and means carried by said 'driving element for releasing said arm Whenl said carriage reaches the extremity of its movement and permittingv said first mentioned means to return said carrage'to itsv normal position.

ln testimony whereof We alix our signatures in presence of two Witnesses.

ANDREW Ef VANCE. OLlVER C. MRTRUDE.

Witnesses:

H. B. CARTER, H. W. BRACKNEY.

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