US847428A - Type-writing machine. - Google Patents

Description

No. 847,428. PATENTED MA 19,1907. r H. s. MOOORMAGK.

TYPE WRITING MACHINE.

APPLICATION FILED APE-6. 1905.

a sums-sum '1.

WITNESSES. Ill/VENTOH ATTORNEY PATENTED MAR. 19, 1907. H. s. MOGORMAGK.

' TYPE WRITING MACHINE; APPLICATION FILED APR.6. 190s.

WITNESSES:

ATTORNEY 3 SHEETS-SHEET 2.

PATENTED MAR. 19, 1907.

H.-S; MGOORMAGK. TYPE WRITING. MACHINE.

APPLIGATION FILED APR.6. 1905 BSHBETS-SHEET 3.

uvmvrwe By I i 417m Heretoforeit has been the practice to in-. sert the sheet of paper behind the platen and- I UNITED STATES PATENT, OFFICE.

HARRY S. MoCORMACK, OF PROVIDENCE, 'RHODE ISLAND, ASSIGNOR TO UNDERWOOD TYPEWRITER COMPANY, OF' NEW YORK, N. Y., CORPO- RATION OF NEW JERSEY.

TYPE-WRITING MAGHINE.

To-aZZ whom it may concern:

Beit known that I, HARRY'S. MoCoRMAo'K, a citizen dfifthe- United States,- residing in Providence, State of Rhode Island, have invented certain new and usefulilmprovements in Type-Writ-' ing Machines, of which the following is a specification.

This invention relates principally to means for squaring the leading'edge of the paper'w ith reference to the printing-line on the platen of a type-writing machlne.

to turn the platen so as to bring the sheet into view at'the printing-point and then adjust the paper "so that it is square with theprintingunsatisfactory. Moreover, in the operation ine. This operation is slow and known as condensed billing it is customary after completing afbill to rotate the platen back, insert a fresh bill, and then roe tate the platen forward to bring the first line 'or'space on the billto the printing-point.

The necessary adjustment or "squaring of the bill relatively to the printing-line is difficult,

owing'to the presence in the machine of the usual recording and carbon sheets. Moreover,

it is found in practice that the bill-sometimes gets out'of proper register with the recording sheet that is, the first line of writing falls in the wrong space upon either the bill orv the recording-sheet, or both, particularly where mechan'ical means are employed to determine the extent of the backward and forward rev olutions of the platen.-

In order to overcome these difliculties, I

provide at the platen, between the receiving sidethereof and the printing-point, a gage.

This gage stands normally below the platen and out of use but means are provided Whereby at the will of the operator thegage may be one moved up against the platen. This is by means .of a key mounted upon the platenl'rame.

One of the features of my invention resides in employing for this purpose 'the same.

key that upon the Underwood type-writing machine is used for releasing the pressurerollers, so that when said pressure rollers are released thegage is simultaneously thrown against the platen. Thus the paper may he slipped in freely at the rear of the platen until in the county of Providence and 'ing 'the pressure rollers. v Vance of one of the pressure-rollers, so that sition. Fig. 8 isa perspective view Patented March 19, 1907.

the'le'ading edge thereof strikes the gage and is squared for trued thereb Thereupon said key is returned to nornia position, withdrawing the gage from the platen and restorthe latter at'lonc'e grips the adjusted paper,

and the latter is fed true to the printing-line. Moreover, in condensed billing 'rnent of each freshly-inserted bill isrendered exactly thesame as that of all other bills, and hence the first line of writing appears 'upon each bill in the exact position required, and the carbonfcop falls in the upon the recon ingrsheet.

In the accompanying drawings, Figure 1is a transverse sectional elevation of the platenthe adjusts Saidgage is in adproper position frameof an Underwood type-writing 'machine with myjimprovements applied thereto,

the parts being shown in normal position. Fig. 1

2 1s a view similar to. Fig. 1, but showing the roller-releasing key depressed, the pressure- .rollers thrown off, the gage moved up against the platen, and a sheet inserted against said gage. Fig- 3 is a perspective View of aportion of the gage mechanism in normal position, Fig. is a front View of the parts 'seen' at Fig. 1. Fig. 5-is a rear view of the same;

Fig. 6 shows another form of. the gage, the parts beingseen in normal position. Fig. 7 is a similar view with the gage in working poof part of the gage. mechanism seen at Figs. 6 and 7.

The Underwood imachine usually cornprises a revoluble platen 1, journaled in ends 2 3 of the platemframe, which also comprises 1 a rear plate or paper-shelf 4. Below-the platen are forward and rear pressure-roll ers 5 6, mounted, respectively, upon ar'n1s'7 8,

pivoted upon a rod 9', which i's'fixed. at its ends in said platen-frame ends 2 3. Springs 10 press the rollers against the platen. 'A rocks shaft 11, which is connected by a link 12 to a finger-piece 13, pivoted at 14 upon the platenframe end 3, is used to release said rollers,

being for this purpose provided with recesses 1 5 which normally receive arms 1 6 17 that are rigid with'thearms 8 7-, respectively, as seen at Fig. 1. Upon depressing said key, as at Fig. 2, said rock-shaft 11 is turned, and the 'arms 16 17 are cammed outwardlythereby;

throwing down the pressure-rollers; 5 6, as

atFig; 2. The key is mechanical-lyd etained and should be of sufficient distance from tip to tip along the platen to enable the leading 3 edge of the sheet to be readily squared. Preferably "I form the gage intwo similar parts, which are sufliciently separated for the Each part compurpose just mentioned. prises a lip or gage proper 18, standing normally below the platen and beneath the usual deflector 19, which curves beneath the platen, said lip being formed upon theforward edge of a strip or arm 20, which is curved round the fixed rod 9 so as toform a pivot, Whereby the gage is enabled to swing up and down. A springZ1,projectingfrom' afixture 22, bears against a rigid tongue 23, which depends from the arm 23.

from the arm 20, said spring giving said gage a constant tendency to turn upon the fixed rod 9 in a direction to carry the gage 1.8 up against the platen. Each gage member is, however, normally held away from the platen by means of a pin 24;, which projects laterally from a collar 25, fixed 11 non said rock-shaft 11 ,I

as seen at Figs. 1 and .3. YVhen the rock shaft is turned by means of the key 13, the pins 24 ride down the lingers 23, which are in the nature of'canis, and peri'nit the springs 21. to vibrate the gage members 18 up against the platen, as at Fig. 3. The gage members stay at this point as long as the 'key 13 remains depressed, and the sheet or sheets of paper 26 may now be inserted and squared by bringing the leading edge thereof against the gage members, which, aforesaid, are sufficiently far apart to give a broad bearing for truing the sheet. The upper edge of each gage member is beveled, as at 26, to fit the platen, as seen at Fig. 2, so that the edge of the paper cannot work in between the gage andthe platen. During the final portion of the initial movement of the key tho pin 24 is idle, or, in other words, the il .v11\\'ard movement of the key may continue after. the springs 21have. pressed the gage members against the platen, one of said pins 24 being shown at Fig. 2 as moved away Thus it is insured that each gage member shall fitagainst the platen, while a further downward movement of the key is permitted in order to enable'the proper locking action to occur between the rockshaft. 11 and the roller-releasing arms 16 17.

The release-key 13 is now lifted,and the pins by riding up albng the tongues 23 cam the gage members 18 away from the platen simultzmeously tothe Fig. '1 position, and at the same time the pressure-rollers are caused to bear against the platen. t will be seen that said arms I thegage is in advance of the pressure-roller 6, so that the latter upon assuming'normal position bears against the adjusted sheet or sheets '26, and hence the latter is caused 'to feed accurately'and squarely to the printingpoint, and'incondensed-billing the forward movement of-the platen brings the bill to the exact position required for printing the-first line thereon. The gage members are adapted to project up through openings 27 in the deflector-plate.

The tip of each-gage member at 26 is parallel with or fitted to the platen. Each gage member by reason of being pivoted in rear of and considerably below the point of contact with the platen moves not only downwardly, but also forwardly and away from the leading edge of the paper, when the key 13 is raised, or, in other words, each gage member recedes from the paper, and hence has no liability to turn the edges of the paper or to disturb theadjustment thereof. The turning of the edge of the paper would be an objection, as it would interfere with the paper entering the bite of the forward feed-rollers.

If it is desired to depress the release-key 1;; at any time when the paper'is in position for printing, this may be done, and the gage mem.- bers will rise and ride lightly in contact with the paper without, however, being liable to tear the same and not interfering withthe adjustment of the paper. Atthis time the gage members will be merely held againstthe paper by the light springs 21, which will ac-' commodate any thickness of paper that may be inserted in the machineso that the gages can do no damage at any time. i It will be observed that the device is not only simple and durable, but also easily attached to the machine.

in the modification shown at Figs; 6, 7, and 8 each gage 28 is in the form of a vertical slide 29, where it slides up and down on 'the shoulder of a screw 30, fixed to the rod 9. The upward movement of each gage is effect-- ed by a pin 31, projecting from a collar 25, .lixed upon the roc -shaf t 11 \Vhen the rock-shaft is turned, the pin strikes the upper portion 32 of a bent member or hook formed upon the gage 2S, and thereby lifts-the gage. Said bent member also includes a lower part 33, whichthe pin 31 may strike upon its return movement, so as to insure a withdrawal of the gage from the platen, at Fig. 6.

' Other variations maybe resorted towithin the scope of my invention, and portions of my improvements may be used without others.

llaving thus described my invention, I claim 1. In a type-writing machine, the combination. with a revoluble platen, of forward and rear pressureaoller's bearin against the under side of the platen, a gage between said rollers below the platen and normally separated fromthe-latter, a key, means connectthe platen.

roller, means being provided whereby the,

key is detained in Working position, a gage normally in a position of disuse, for squaring the leading edge of the paper relatively to the printing-point, and means for enabling said key by its roller-releasing movement to cause the movement of said gage to the platen; provision being made, for further movement of the key after'said gage reaches 3 In a type-writing maehine,-the combination with a revoluble platen, of a roller for pressing paper against theplaten, a key, means controlled by said key for 'camming said roller awayfrom'the platen, said camming means being constructed to detain said key in working position, a gage for squaring the leading edge of the paper relatively to the printing-line, yielding -means tending constantly to move said gage to the platen, and a cam device normally holding said gage away from the platen, and including rovision for further movement of the key idly after the gage reaches the platen.

4. In a type-Writin machine, the combination witha-revolub e platen, of a rod eX-. tending along the platen, a gage journaled upon the rod for squaring the leading edge of the paper relatively to the printing-line, a. key, a rock-shaft to which said key is connected, said rock-shaft having means for cammingsaid gage away from. the platen, and constructed to ermit the movement of said gageto the p aten during the initial stroke of said key, a pressure-roller; bearing against the under side of the platen, an arm supporting said pressure-roller and journaled upon said rod, and means controlled by said rock-shaft for causing the initial movement otsaid key to release said roller.

5 In a type-Writing machine, the combination with a platen, a gage normally in a position of disuse, for s uaring the leading edge of the paper relative y to the printing-point, a key, and means for enabling said key-to cause the movement of said gage t0 the platen; provision being made i'or further movement of the key after said gage reaches the'platen.

6. In a type-Writing machine, the combination with a revoluble platen, of a gage for squaring the leading edge of the paper relatively to the printing-line, yielding means tending constantly to move said gage to the platen, a key, and a cam device controlled by said key and normally holding said gage away from the platen, and including pro vision for iurther movement of the key after the gage reaches the platen.

7. In a type writiiw machine, the combination with a revolub le platen, of a rod extending along the platen, a gagejournaled upon the rod for squaring the leading edge of the paper relatively to the printing-line, a

key, and a rock-shaft to Which said key is. connected, said rock-shaft having means for camming said gage'away from the platen, and constructed to ermit the movement of said gage to the p aten during the initial stroke of said key;

HARRY S. MOCORMACK.

VV'itnesses-. Y

MAY S. DILLON, DENNIS F. OBRIEbL-

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