US569627A

US569627A - Type-writing machine

Info

Publication number: US569627A
Authority: US
Publication date: 1896-10-20
Anticipated expiration: 1913-10-20

Description

5 Sheets-Sheet 1.-

y (No Model.)

R. J. FISHER.

TYPE WRITING MACHINE.

Patented Det. 20,

(No Model.) 5 Sheets- Sheet 2.

R. J. HSHBR. TYPE WRITING MACHINE.

No. 569,627. Patented Oct. 20, 1896.

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(No' Model.) 5 Sheets-Sheet 3.

Y R. J. FISHER.

TYPE WRITING MACHINE.

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L t e e h. S s t Bv Dv h 8 5 Dm. un H S I .nr .lm R n d o M 0 m.

TYPE WRITING MACHINE.

Patented 4001;. 2G

-vivi me mams News cu. moraumn. WASHINGTON. o. c

(No Model.) 5 Sheets-Sheet 5.

R. J. Halma.

TYPE WRITING MACHINE.

N0.,569,627.v Patented Oct. 20,1896.

119 l 5 l@ y Y J9 i? a I7@ 5 55@ 70 ROBERT J. FISHER, OF ATHENS, TENNESSEE.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 569,62*?, dated October 20, 1896.

Application led July 31, 1895. Serial No. 557,696. (No model.)

To @ZK whom it may concern.-

Be it known that I, ROBERT J. FISHER, a citizen of the United States, residing at Athens, in the county of .McMinn and State of Tennessee, have invented a new and useful Type-llrriting Machine, of which the following is a specification.

My invention relates to type-writing inachines, and particularly to improvements upon the constructions shown and described in my former applications, Serial Nos. 4S9,S34, led Oct-ober 3l, 1893; 517,324, filed July 12, 159i; 530,400, filed November 30, 1894, and 545,508, filed April 12, 1895; and the objects in View are to improve the construction of the type-bar-supporting ring, to facilitate the application and removal of the type-bars and arrange the same compactly, to provide iniproved means for shifting the ribbon to expose the line of writing, to provide an iinproved and simple construction of carriage, to provide means for reducing the interval between the front and rear longitudinal carriage-guides, whereby twisting and vibration of the carriage under the action of the carriage feeding mechanism is prevented, to provide improved connections between the keys and carriage-feedin g mechanism, to simplifjyT the construction and reduce the number of operating parts, to provide an improved construction of upper and lower case shifting mechanism, and, furthermore, to provide an improved construct-ion of support and means for holding the book in position for writing.

Further objects and advantages of this invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.

In the drawings, Figure 1 is a front view, partly in longitudinal section, of a type-writing machine constructed in accordance with my invention. Fig. 2 is a plan view of the same with the carriage shown in horizontal section to illustrate the positions of the keylevers. Fig. 3 is a transverse vertical section. Fig. -l is a horizontal section on the line -l 4 of Fig. 1, showing the type-headshifting lever depressed to its operative position.

tion of the carriage upon the line 5 5 of Fig. b. Fig. (l is a transverse vertical section of -adj ustable type-bar-bearing clips.

Fig. 5 is a vertical longitudinal sec-v the carriage on the line G G of Fig. Fig. 7 is a detail inverted plan view of a portion of the type-bar-supporting ring. Fig. S is a detail view in perspective of one of the upper Fig. J is a similar view of one of the lower type-barbearing clips. Fig. 10 is a detail view in perspective of a portion of one of the ribbonguides and means for mounting the same upon the type-bar-supporting ring. Fig. 11 is a detail View of the printing plate or platen detached. Fig. 12 is a detail view in perspective of the support or table inverted. Fig. 13 is a detail view showing a slightly-differ ent construction of means for securing the adjustable track to the platen. Fig. 14 is a detail view of the type-head and shifting-arm in the positions which they occupy7 when an upper-case character is printed. Fig. 15 is a detail view in perspective of the type-head and the contiguous portion of the leve-r.

Similar numerals of reference indicate corresponding parts in all the ligures of the drawings. The machine embodying my present invention is mounted for movement transverse to the line of writing Vupon tracks 1, similar to those shown and described in my former applications above noted, said tracks being adapted to rest upon the sheet or page to receive the impression and serving to hold said sheet or page 'in proper position for receiving the impact of the type-heads. In connection with said tracks l preferably employ a printing plate or platen 2, having a surface of hard rubber or its equivalent, and when engaged in boekwork this plate or platen is preferably inserted between the leaf to receive the impression and the subjacent body of the book. The track or guide which is arranged contiguous to one edge of the plate or platen is loose to provide for the necessary lateral adjustment to suit the width of the sheet or page upon which the impression is to be made, and the track at the ,other edge of the plate or platen is fixed at its extremities thereto by means of clips 3, the intermediate portion of the track being unconnected with the plate or platen to provide for slipping the edge of the sheet or leaf thereunder. Said clips engage the end or upper and lower edges of the plate or platen to provide for the adjustment of the track parallel with said edges or parallel with the line of writing, whereby the edge of the leaf may be properly engaged between the same and the plate.

The frame 4 is provided with front and rearV bars 5, having a plurality of seats 6 for engagement, respectively, with the tracks to suit different intervals between the latter, and mounted upon the frame, contiguous to the front bar 5, is a gage consisting of a rockshaft 7, provided at an intermediate point with a key S, a main gageplate 9, which in length corresponds'with the interval between gage-plate is provided with an actuating-l spring ll to hold it normally inits depressed or operative position, as shown in Fig. 3,and the auxiliary gage-plates, which are loosely mounted upon the rock-shaft, are each provided with an j actuating-spring l2, Fig. 4.

IVhen it is necessary to raise the edge of the gage from the surface of the sheet or leaf toV move the frame freely in either direction, the key 3 is depressed, thus moving the main gage-plate against the' tension of its actuat-V ing-spring, and in order to communicate :mo-

. tion to all of the auxiliary gage-plates the rock-shaft is provided with a series of pins 13, one of which is arranged` under each aux- -iliary gage-plate, as indicated in full lines in Fig. 3 and in dotted lines in Fig. 4. The advantage derived from the use of the sectional gage-plate, as above described, resides in the fact that when the tracks l are arranged in engagement with the desired seats in the base-bars 5 of the framework the auxiliary gage-plates or sections which are in aiinement with the selected seats are elevated at their rear or free ends and rest upon the upper smooth surfaces of the tracks and do not interfere with the desired operation of the other sections of the gage. In other words, this sectional construction of the gage provides for the automatic adjustment thereof to suit the interval between the tracks.

The line-spacing mechanism. which is indicated at 14 in Figs. 2 and 3 and which includes gears l5 for coperation with the tracks, said gears being adjustable upon the spindle 16 to suit the interval between the tracks, is fully described in my said former application, Serial No. 489,634, and therefore requires no specific description herein.

The front and rear parallel carri-age-guides 17 form members of the above-mentioned frame, and upon the same is mounted the carriage, upon which are arranged the printing and inking mechanisms. The body ofthe carriage, consisting of the front and rear sides 18 and the ends l0, is constructed of a single continuous strip of sheet metal, preferably steel, and to this body portion or fra-me are secured the iioor 2O and the steps 2l, also of sheet metal. 22 represents aremovable plate forming the top of the carriage in rear of the keyboard, whereby access may be had to thekey-levers and the means for communicating motion to the carriage feeding mechanism. The stems of the keys 23 are mounted in openings in thesteps 2l, which combine to form the keyboard and are connected to the front ends of key-levers 24, pivoted at intermediate points to the upper ends of posts 25, rising from the door of the carriage.

Depending from the body of the carriage are front and rear hangers 26 and 27, (shown clearly in Figs. 3 and 4,) which support the type-bar-supporting ring 28, (see Figs. l., 3, 4, and 7,) said supporting-ring consisting of a flat segmental or crescent shaped bar, to the upper and lower surfaces of which are alternately secured the type-bar-bearin g clips 29 and 30. metal, as shown clearly in Fig.'8, and have their lateral edges upstruck to form parallel flanges 3l, which terminate at their outer ends in bearing-eyes 32, and the clips 30 are also struck from sheet metal and are provided with parallel depending or downturned fianges 33,terminating at their4 outer ends in upturned bearing-eyes 34,which are doubled upon and bear against the outer surfaces of the ianges and rise above the plane of the body of the clip and also above the plane of the upper surface kof the supportingring, said construction being clearly illustrated in Fig. 9. The clips 29 are secured to the upper surface of the supporting-ring, with the bearing-eyes contiguous to the outer periphery thereof, and the clips 30 are secured to the under surface of the supporting-ring, with the bearing-eyes 34 thereof arranged beyond the outer edge of t-he supporting-ring. The upper clips 29 are spaced apart and the lower clips 30 are arranged opposite the intervals between the upper clips, whereby the typebars 35, (shown in Fig. 3,) which are mounted in the upper clips, operate between the planes of the flanges of the clips in which they are mounted, and the type bars which are mounted in the lower clips operate between the planes of the contiguous `iianges 3l of the adjacent upper clips. In order to secure accurate alinement, I have found it desirable to mount the clips adjustably upon the supporting-ring, and the means which I have illustratedl in the drawings for accomplishing this adjustment consist of locking-screws 36 for the upper clips, extending through radial slots 37 in the type-bar-supporting ring and engaging threaded apertures 3S in the said clips, and similar locking-screws 39, extending through longitudinal slots 40 in the lower clips and engaging threaded apertures 4l in the supporting-ring. (For this construction see Figs. l, 3, 4, 7, 8, and 9.) The type-bars are connected with the extremities of the key-levers by means of draw rods or wires 42. In order to reduce the number of type-bars,

The clips 29`are struck from sheet IOO IIO

, type-head to the upper-case position.

keys, and operating connections, I employ upper and lower case shifting mechanism comprising pivotal type-heads 43, mounted upon the extremities of the type-bars and held in the lower-case position by means of springs iet, as shown in Fig. 3, and as particularly shown and described in my former application, Serial No. 545,508, above mentioned. This type-head is provided with a trip-arm 45, projecting forwardly in the plane of the type-bar, and it is adapted to engage a shifting-arm 46, pivoted to the type-bar-supporting ring adjacent to one extremity by means of a clip 47, constructed substantially as described in connection with the upper typebar-bearin g clips 29 and provided with similar means of adjustment, as indicated in Fig. l. The position of the shifting-arm @LG with relation to the type-bar-bearin g clips is clearly illustrated in Fig. 4, in which said arm is in its horizontal or operative position and in which the position of the foremost ty pe-bars, when in engagement with the shifting-arm, is indicated in dotted lines. The shiftingarm is provided with a crescent-shaped head 4S, disposed with its center approximately coincident with the center of the type-bar-supporting ring, whereby the pivotal type-heads may enter the space between the arms of the head 48 and engage said head to shift the The blade 40 ot the shifting-arm is preferably of spring-steel, and is secured to the stock or body portion 50 thereof by a screw 51 or its equivalent, said blade being adapted to yield sufficiently to relieve the mechanism of jar when the type-bar is brought to the printing' position and the trip-arm on the head thereof engages the head of the shifting-arm. The means for communicating motion to the shitting-arm in the construction illustrated consists of a shift-key 52, provided with a returnspring 53 and connected by means of a rod 54 with the body portion of said arm.

The carriage-feedin g mechanism is substantially the same as that shown and described in my said former application, Serial No. 530,400, consisting, essentially, ot the lower iixed rack-bar 55 and the upper movable rack-bar 56, provided with a fiange 57, with which cooperates a pin 58, carried by a lever 59, mounted parallel with the rearside of the carriage and connected to a key-lever G0, operated by a release-key Gl. The pivotal pawl G2, which operates between the serrated edges of said rack-bars, projects rearwardly into the casing of the carriage and is connected by means of a draw-wire 63 with a crank-arm 04E on a rock-shaft 65, which is arranged parallel with the rear side ot' the carriage. Said rockshaft is provided with -terminal crank-arms 66, connected to vertical slides 67, said slides being provided at their lower ends with guideslots G8, engaging guide pins or screws 09, secured to the ends of the carriage-casing. illotion is communicated to the rock-shaft by means of pivotal yokes 70, having their parallel rearwardly-extending arms pivoted to the ends of the casing and engaged with pins 7l on the slides 67, and having their front bars 72, by which said arms are connected, arranged in the path of pins 73 on the keystems. (For the above construction see Figs. 2, 3, 5, and (i.)

The crank-arm 64: is slotted, asv shown at `74e, for engagement by an adjustable pin 7 5, by which the upper extremity of the drawwire 63 is connected thereto, and the extremity of said arm G4 is connected to a return-- spring 76 (see Figs. a and 5) to return the crank-shaft and hence the feed-pawl to the normal position. In order to provide for the adjustment of the tension of said spring 76, l employ abell-crank lever 7 7, pivoted to the rear side of the casing ofthe carriage,as shown in Fig. 5, and a tension-rod 7S, connected to one arm of the bell-crank lever and provided with an adjustable head 7 9, mounted in the end of the casing. Said head is provided with a threaded shank S0, which engages a threaded socket Sl in the body portion of the tension-rod. The space-key S2 is provided with stems 83, having pins Si, which engage one of the cross-bars 72 of the yokes, as shown in Figs. l and 2.

Mounted to slide and rotate in bearings S5 at the ends of the casing are the spool-spindles S6, upon which are removably fitted the spools 87, being held in place by thumb-nuts 8,8. The spools are held in contact with said thumb-nuts 8S by means oi' springs 89, coiled upon the spindles and bearing at their rear ends against the front bearings S5, and rotary motion is communicated to the spool-spindles by means of ratchet-wheels 90and pawls 91, all constructed substantially as shown in my said former applications. rllhe means for imparting longitudinal or axial movement to the spools, and including the connecting-bar 92 between the rear ends of the spindles, the traveler 93 on said connecting-bar, and the horizontal guide 94, inclined to the carriageguide or to the line of writing, are also fully described in my former applications above mentioned.

Depending from the ribbon-spool spindles and provided with arms 05, which are fitted to slide upon said spindles, respectively, in front and in rear of the spools, are the ribbon-guides 9G,havin g inturned lower extremities'97, which extend below the plane of the type-bar-supporting ring and beyond the inner edge thereof. These ribbon-guides are anged outwardly at their front and rear edges, as shown at 98, to form a seat for the ribbon and prevent forward and rearward displacement thereof, and the horizontal or inturned lower portions of the same are provided with upstruck guiding-ears 99, which engage over guide strips 100, secured by means of brackets 101 to the lower side of the type bar supporting ring. The inner eX- tremities of the horizontal portions 97 are transversely slotted, as shown at 102, and

IOO

IIO

crank lever is fixed to the rock-shaft 109, eX-,

tending parallel with the line of writing and provided at the end remote from the shifting- -key 105 with a depending` arm 110, connected by a link 111 with the contiguous ribbonguide. Said ribbon-shifting key is provided with a retu rn-sprin g 112, and by its depression the ribbonguides are simultaneously moved to the rear in the direction indicated-by the arrow in Fig. 3 to expose the line of writing.

In connection with the above-described construction I employ a table 113, (see Figs. 1, 3, and 12,) provided contiguous to one end and parallel with the ed gc with a vertically-ad justable supporting-stri p 114, provid-ed with a depending slotted arm 115, which operates in a guide-groove 116 in the guide-block 117. EX- tending through the slot 118 of said arm is a locking-rod 110, provided with' a shoulder 120 to bear against the outer surface of the slotted arm and threaded in a nut 121 in the guideblock. Said locking-rod extends through the front bar 122 of the table and is provided with a hand-wheel 123.Y In order to raise the supporting-strip when released by uns'crewing the locking-rod, I employ an elevating-sprin g 124C, seated at its lower end in an ear 125 on the guide-block and coiled around a stem 126, depending from the supporting-strip. In order to depress the strip to hold the book at the desired elevation, one hand of the operator should be placed upon the surface of the book, and when the desired level is reached the locking-rod may be operated to clamp the parts in place.

From the above description it will be seen that the sheet or page to be printed is held in the desired position by means of the printing plate or platen arranged thereunder and the tracks disposed upon the upper surface of said sheet or page, the book-supporting strip being adjusted to arrange the page in a level position, and in order to provide for adjusting either side of the book without changing the position of the book I provide at 127 a second supporting strip provided with means for adjusting the same, which are the duplicate of those described in connection with the strip 114.

It will be seen, furthermore, that the tape 128 of the carriage-actuating spring 129', which imparts forward movement to the carriage and is attached to the carriage-casing contiguous to its rear side, will not cause twisting or vibration of the carriage for the reason that the interval between the carriageguides is small, and hence the strain of the carriage-spring is direct. I am enabled to arrange said guides at the minimum distance apart by reason of the disposal of the typebar-supporting ring below the Vplane thereof and constructing the same of the crescent or segmental shape described, and, furthermore, by reason of the fact that the keyboard, keys, and operating connections are disposed between the vertical planes of said front and rear guides. The base required for a carriage thus constructed may be small, inasmuch as the center of gravity is contiguous to or slightly below the horizontal plane of the guides.

A further advantage of the arrangement of the keyboard between the vertical planes of the guides is that it allows the operator a free view of the line of writing while sitting in the usual position in front of the machine. Furthermore, the key-levers are constructed of the minimum length, and the draw rods or wires 42, which connect said key-levers with the type-bars, extend vertically downward through a segmental slot 130, (see Fig. 2,) formed in the floor of the carriage-casing.

In order t-o prevent the carriage from leaving the guides by accident or otherwise and serve as a stop to limit the movement ot' the carriage in both directions to the length of the line which may bel printed between the tracks, I employ a stop secured to the under side of the type-bar-supporting ring at -its center, and consisting of depending ears 131, the lower extremities of which are disposed below the planes of thc upper sides of the tracks, whereby vsaid ears engage the tracks and are checked' thereby. This stop, which is permanently fixed to the carriage, deter- Inines the full length of the lines which may be printed at any adjustment of the tracks.

The object in arranging the stop contiguous to the printingpoint of the carriage and in the plane of the tracks is that it provides for adjusting the. tracks to suit the width of the page without reference to the length of the carriage-guides, whereby the latter may be made equal to or greater than the greatest length of line desired. A further advantage of this construction resides in the fact that the stop for the carriage is thus arranged approximately in the plane of the center of gravity, or of the heaviest portion of the carriage,whereby when the movement of the carriage is checked the parts thereof, particularly the hangers for the supporting-ring, are not strained, as would be the case with a pendent type-bar-supporting ring if the carriage were checked in or near lthe plane of the carriage-guides.

In Fig. 13 I have shown slightly-different means for securing the adjustable track to the platen, the same consisting of pins 132, depending from the track and engaging perforations or sockets 133 in the platen.

It will be understood that while I have shown springs S9 upon the spool-spindles for assisting in returning the spools to their operative position in contact with the stops 88, I am depending upon the spring 112 to return IOC IIC

these parts by making said spring 112 ot-sut-y ticient strength, and in practice I-have found the operation of the parts to be satisfactory when relying solely upon the spring l l 2, thereby avoiding complications of the construction contiguous to the ribbon-spools.

In the drawings the series of bearing-clips is shown as occupying slightly less than a semicircle, whereby the foremost type-bars strike past the near horns or arms of the crescent-shaped head of the shifting-bar to cause the engagement of the trip-arm on the type-head with the tar or remote horn or arm of said crescent-shaped head, but it will be understood that, inasmuch as the trip-arm inclin es downward below the plane of the lower surface of the type-bar, the series of clips may be extended and the crescent-shaped head may be correspondingly extended, as may be found necessary in practice. The type-bars are adapted to strike over the near horn or arm of the head of the shifting-arm to engage thc other horn or arm, while the printing-face oi' the type-head passes down between the horns or arms.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the spirit or sacrificing any ot the advantages of this invention.

Having described my invention, what I claim isl. In a type-writing machine, the combination with carriage-guides, a carriage having a crescent typebar-supporting ring, carriage feeding mechanism,and type-bars having pivotal type-heads provided with trip-arms, of a pivotal shifting-arm having a head adapted to be arranged in the path of said trip-arms for engagement thereby when the type-head reaches the printingplane, the shifting-arm having a spring-blade carrying said head, an d means for operating the shifting-arm so as to hold the type-head in its adjusted position while the impression is being made, substantially as specified.

2. In a type-writing machine, a carriage mounted upon guides for movement parallel with the line of writing and having a casing constructed ot' sheet metal bent at intervals to form front and rear sides and ends, a slotted bottom or floor, a keyboard closing the front portion of the top of the casing, and a removable plate closing the rear portion of the same, the key-levers being arranged within the casing, and draw-wires for connection with type-bars extending through the slots in the bottom or iioor, substantially as specified.

3. In a type-writing machine, the combination with a type-bar-supporting ring, of upper and lower type-bar-bearing clips secured, respectively, to the upper and lower surfaces of the supporting-ring, the upper bearingclips having lateral upstruck flanges terminatin g at their outer ends in bearing-eyes and arranged at intervals on the ring, and the lower bearing-clips being provided beyond the outer edge of the supporting-ring with upturned bearing-eyes terminating approximately in the plane of the bearing-eyes on the upper clips, and type-bars mounted in said bearing-eyes, substantially as specified.

4. In a type-writing machine, the combinaF tion with a type-barsupportin g ring, of upper and lower type-bar-bearing clips secured, respectively, to the upper and lower surfaces of the supporting-ring, the upper bearingclips being arranged at intervals upon the supporting-ring and having upstruck lateral iianges and bearingeyes, and the lower bear ing-clips having downturned lateral flanges provided beyond the outer periphery of the supporting-ring with upturned bearing-eyes, the lower bearing-clips bein arranged below the intervals between the upper bearingclips, and type-bars mounted in the bearings of the clips, substantially as specified.

In a type writing machine, the combination with a type-bar-supportin g ring, of typebar-bearing clips arranged alternately above and below the plane of the supporting-ring and provided, respectively, with threaded openings and longitudinal slots, the supporting-ring being provided, respectively, in the planes of the upper and lower clips with slots and threaded perforations, and screws engaging the registering slots and perforations to secure the clips at the desired radial adjustment, substantially as specified.

G. In a type-writing machine, the combination with carriage and printing mechanism, of vertical slides mounted upon the carriage and operatively connected with the printing mechanism, a rock-shaft having cranl-arms connected to said slides, a feed-pawl arranged in operative relation with a rack, connections between said feed-pawl and the rock-shaft, a return-spring for the roclcshaft to return the feed-pawl to its normal position, and a tension-rod connected at one end by a lever with said return-sprin g and provided at the other end with an adjustable exposed head having a stem threaded in a socket in the body por tion of the rod, substantially as speciiied.

'7. In a type-writing machine, the combination with a type-bar-supporting ring, of ribbon spools mounted for axial movement above the plane of the supporting-ring, ribbon-guides mounted for movement simultaneous with the ribbon-spools and depending therefrom, said ribbon-guides having hori- IOO IIO

zontal inturned lower extremities and up struck clips in said horizontal extremities, and guide-strips carried by the typebarsupporting ring and arranged transverse to the line of writing for engagement by the upstruck clips, substantially as specified.

8. Ina type-writing machine,the combination with printing mechanism including a typcbarsupporting ring, of ribbon-spools mounted for axial movement transverse to the line of writing, ribbon-guides mounted upon the spindles ot the ribbon-spools and extending to a point below the plane of the l.typebarfsupporteg ring', a ribbon-shifting key, a rook-shafto olmeeted to Vthe ribbon-A shftng key, :mil Connections between Lthe.

rook-shaft and said ribbongude, whereby the lat-ter may be moved transversely to the line of Writing to expose the same, subsiseu-Y, Lially es speoiech Y i Q Ina typewriting maohine,V the Combination with etype-bar-supporting ring, Yof mb- Vloon spools mounted for axial movementy above therplane of Lthe supporting-Ting and' *transverse to the line of Writing,ribbon-guides 10. In e typeewribin g machine,V thee-emblem .lioufwth printing mechanism ineludinge i type-beesupporting liug1V ofribbon spools Y moimlsecly for axial movement trensverseto Velle line of Writing, ribbon-gudesV mounted uponthe spindles ofthe ribbon-spools and extending; toa ypoint below thep'lane of the type-ba'r-support-ing ring, al ibbonfshiftng key, and connections between'the ehi-fling; key and said libbomguide whereby the letter 4e melee? m ay be'moved trensverselv to the line/of Writing to expose ,the seme, substantially speciedi. Y

l l. In e type-Writing mehine,the eomloina'N ,tion with parallel tracks i adapted to, #been y .ranged upon a pagero a book, Vand e frame mounted upon the traeksgfo'r movement pain allely therewith, of e `Gable having eomlnelhr sunk vertical]y-adjustable supporting-strips `adopted to be arranged, respectively, under he opposite sides of e booky so support the sameina horizontal position, an elevetingspring arranged under y@eehSuppo1ti1f1gst1p and adapted Vto elexate the seme 'with the `supelposed portion ofY e book,encl e shoul derefl looking-arm threaded in e xed guide and extenclngehrough a Vsloted armon'tlie V:undy beyond the front of the -table Vendy Lerminatin g in meansrwherebyit Vmay be rotated to secure the strip etthezdesivedvertical ad ,jfustmenu substantially es lespeeied.

In testimony theol claim theflforegong es my own Ifhave hereto affixed lmysignmaur-'e in Ythe presence of ltwo Witnesses.

Y ROBERT I; FISHER. ViVitnesses: .Y f

WILLAM C. l-IoRNsBY, FREDERIC/ELL. MANSFLELD.

. supporting-strip with' itsV shoulder in eoloehet'V r with seid e'f'mfhe Ioekingerm extending to Y