US1012925A - Type-writing machine. - Google Patents

Description

G,E.SMITH. TYPE WRITING MACHINE.

APPLICATION FILED JUNE 6, 1911. 7 1,012,925 Patented Dec. 26, 1911.

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' 01E; SMITH. TYPE WRITING MACHINE.

' I APPLICATION FILED JUNE 6, 1911. 1 012,925, Patented Dec. 26, 1911.

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, C. E. SMITH. TYPBWRITING MACHINE. APPLICATION IILBD'JUNE e, 1911.

- 1,012,925, Patentd Dec.26,1911.

3 SHEETS-SHEET 3 HIEATTEIRNEY UNITED 1 STATES PATENT onn on- CHARLES E. SMITH, OF NEW YORK, N. Y., ASSIGNOR 'IO UNION TYPEWRITER COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

Specification of Letters Patent.

TYPE-WRITING MACHINE.

Patented Dec. 26, 1911.

To all whom'it may concern:

Be it known that I, CHARLES E. SMITH, a citizen of the United States, and resident of the borough of Brooklymcity of New York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

My invention relates to typewriting machines and more particularly to means whereby tabulating operations may be automatically effected as the writing proceeds and. without the exercise of any care or judgment on the part of the operator and without the necessity of actuating tabulating keys.

A further object of my invention is to provide in a construction of the character specified above,hand controlled means operable at will to move one of two cooperative disengaging devices into or out of cooperative relation with the other of said disengaging devices and for maintaining it in either of such positions, thus rendering the automatically operating tabulating means operative or inoperative, as may be desired.

-To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements of parts and combinations of devices to be hereinafter described and particularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters indicate corresponding parts in the various views, Figure 1 is a fragmentary vertical front to rear sectional view showing the upper portion of a typewriting machine embodying my invention. Fig. 2 is a fragmentary rear elevation with parts in section showing the devices of my invention and some of the associated parts. Fig. 3 is a detail fragmentary perspective view of a part of the controlling means for rendering the tabulating mechanism operative or inoperative. Fig. 4 is a detail perspective view of one of the cooperative members by which a disengagement between the feed rack and pinion is effected. Fig. 5 is a rear elevation of the same with some of its associated parts. Fig.

6 is a fragmentary vertical front to rear sectional View showing the upper portion of a typewriting machine illustrating a modlfied form of construction embodying my in-' vention. Fig. 7 is a rear elevation of the same with parts sectioned away. Fig. 8 is a fragmentary rear elevation showing some ner posts 1 and a top plate 2. Fixed oppositely grooved guide rails 3 are secured in the usual manner to the top plate of the machine and anti-friction balls or rollers Tare received in the grooves in said rails and are likewise received in oppositely grooved tracks 5 in the rear cross or guide bar 6 of the carriage. Forwardly extending arms or end bars 7 project from the cross bar 6 and are provided with bearings to receive a platen shaft 8 on which a cylindrical platen 9 is mounted for rotative movement. Rearwardly extending arms 10 are pivoted at 11 to the carriage and support at their rear ends a feed rack 12 which meshes with a feed pinion 13 fixed to the forward end of a shaft 145 mounted to turn in a bearing bracket 15 secured to the top plate of the machine. The rear end of the shaft 14: is operatively connected to an escapement wheel 16 by the usual pawl and ratchet mechanism contained within a drum 17 and by which the feed pinion and escapement wheel are fixedly connected to turn together in one direction and by which the shaft 14' and pinion 13 may be turned backwardly. independently of the escapement wheel during the travel of the carriage from left to right. Feed dogs 18 are carried by a dog rocker 19 and cooperate with the escapement wheel to effect a step-by-step letter feed of the carriage in the usual manner during the actuation of the finger keys. The feed rack is preferably perforated at 2O throughout'the length thereof, the distance between adjacent perforations corresponding to the spacing between'the teeth prises an engagmg arm or member 23 adapt ed to be received in one of the recesses 21 and also comprises a parallel engaging arm .24 adapted to be received in the corresponding opening in the feed rack, in order to hold and maintain the disengaging device I as a whole in the position to which it may be adjusted along the feed rack. The arm 24 is extended rearwardly to form a contact portion 25 which is looped on itself and constitutes a finger piece by which the disengaging device may be gripped by the fingers of the operator and withdrawn from its engaging apertures and recesses and adjusted from one position to another along the feed rack. The construction is such that the disengaging devices 22 may be adjusted to any letter space position .in the travel of the carriage and may, if desired, be adjusted to adjacent apertures and re cesscs for purposes which will hereinafter more clearly appear. a

A cotiperative disengaging member is designated as a whole by the reference numeral 26 and is shown in detail in Fig. 4. This member has oppositely disposed cam faces 27 and-27 and a dwell 28 at the upper edge thereof. The member 26 is slotted at 29 to straddle the bearing 15 for the escapement shaft, said bearing being slotted on each side as at 29 to receive the member 26 and guide it in its vertical movements. The lower end of the member 26 is provided with outwardly extending arms 30 apertured to receive headed screws 31 which are received at their threaded ends in tapped openings in a cross piece 32 provided centrally thereof with a forwardly extending pin 33. The member 26 is also received behind the head of a T-shaped lug 34 which projects from the lower fixed rail 3. The stem of this lug is received in the slot 29 and the head of the lug overlaps the member 26 and it is thus guided by the lug 34 and the walls of the slots 29 in the bearing 15, as said member 26 is moved vertically from the posit-ion shown in-Fig. 2 to that represented in Fig. 5.

I have provided hand controlled means for effecting a vertical movement of the member 26 in order to move it into or out of coiiperative relation with the disengaging devices 22. Thus, a bar or frame 35 is slotted at 36 to receive headed screws 37, the stems of said screws beingreceived in tapped openings in the lower fixedrail 3 of. the

machine. The right-hand end of this bar 35, as the parts appear in Fig. 2, is pivoted at 38 to an upwardly extending crank arm 39 which projects through a slot 40 in the top plate of the machine. The crank arm 39 fixed to a horizontally disposed rock shaft 41 mounted to turn in openings in brackets 42 fixed to and depending from the top plate of the machine. As will be seen in Fig. 1, this rock shaft extends from the rear of the machine, where it carries the crank arm 39, to the front where it is provided with a depending arm 43, preferably enlarged laterally as indicated at 44 in Fig. 2. This enlargement is to provide a surface on which indicating means 45 and 46, such as In and Out may be inscribed. These indices are adapted to be brought into register with a sight opening 47 in a front plate 48'of the machine; it being understood that the depending arm 43 is situated in the rear of said front plate. A segmental slot 49 is provided in the front plate and through this slot projects a finger piece 50 carried by the crank arm 43 and by which the crank arm and the parts connected therewith may be controlled. It will be understood that when the finger piece 50 is moved to one end of the slot, as represented in Fig. 2 for example, the word Out is exposed at the sight opening 47 in the front plate to indicate that the mechanism is out of operation, whereas, when the finger piece is shifted to the other end of the slot 49 the indication In is brought into register with the sight opening to ex-- pose it and. thus indicate that the tabulating mechanism is in operation.

The pin 33 hereinbefore referred to is received in a cam slot 51 in a depending portion 52 of the bar 35; and a dwell 53 at each end of the cam slot cooperates with the pin 33 at the end of the movement of the bar in either direction so as to hold or maintain the member 26 in either the uppermost or lowermost-position to which it may be adjusted by an actuation of the finger piece 50.

The members 26 and 32 are connected together in the manner shown by screws 31 to ficilitate assembling the parts in the ma- 0 me.

When the parts are in the position shown.

in Fig. 2 the mechanism is thrown out of operation, that is to say, the bar 35 will be moved to the right, as the parts appear in said figure, and the cam 51 will effect a lowering of the member 26 to a point where it is out of cotiperative relation with the disengaging devices 22 carried by the feed rack. When, however, the finger piece 50 is shifted to the right, as the parts appear in Fig. 2, the bar 35 will be moved to the left, thus camming the member 26 upwardly so as to bring the upper end thereof into the path of the various disengaging devices 22 carried by the feed rack. I

In the operation of the devicethe operator will first set the disengaging devices 22 at the positions along the feed rack where it is intended to disengage the feed rack from 5 its feed pinion and afford a free travel of" the carriage or a tabulating movement of the carriage. After the members 22 have been set in accordance with the character of. the work to be produced, the operatorwill loproceed with the Writing and during the 1 feed movement of the carriage in the i tion of the arrow in Fig. 2, and under the power applied thereto by the spring drum= 5-1, the first of the disengaging devices 22 will be brought into .coiiperation with the vice 22 over the dwell 28 on the member 26.

As soon as the engaged device 22 passes the 1 25 dwell it will ride down on the opposite cam 1 face 27 a and a reengagement of the rack with its feed pinion will be effected. The weight 1 of the rack itself maybe relied upon to effect I this rengagement, or the springs usually 30 employed may be provided to assist the reengagement between the rack and the pin-} ion. In thepresent instance I have shown the parts so proportioned that the extent of tabulating movement of the carriage effected by the coiiperation of one of the devices-1 22 with the member 26 corresponds to two letter space movements of the carriage. The 1 extent of this movement, however, may bei varied according to the work to be produced. I

If it is desired to provide a free skipping movement of the carriage for the extent of three instead of two spaces, then two of the 1 disengaging devices 22 may be adjusted one next to the other to effect the desired extent v of skipping movement of the carriage. The

character of the work in some instances may be such that it may be found desirable to provide greater extents of engaging surface on the members 22 and 26. The extent of such surfaces may be varied as desired.

During the return movement of the carriage the devices 22 will be brought successively into engagement with the cam face 27 to cause the rack to be lifted and thus enable the devices 22to clear the member26 during the return of the carriage.

In order to throw the automatically operating tabulating mechanism out of operation it is merely necessary to shift the finger 80 piece 50 to the position shown in Fig. 2, thus moving the bar 35 to the right, as the parts are shown in this figure, to eflect a downward movement of the member 26 by the connection of the latter with the bar 35 through the intermediate cam slot 51 and the pin 33. As long as the finger piece is maintained in the position shown the tabulating mechanism is rendered inoperative.

In Figs. 6, 7 and 8, I have shown a modified form of construction embodying my invention inwhich practically a reversal of the construction shown in the preceding figures is represented. In Figs. 6, 7 and 8 a bar 55 extends longitudinally of the carriage adjacent to the feed rack 1.2 and is provided at its ends with upwardly directed arms 56 secured to the upper fixed guide rail 3 by screws 57. The fixed bar 55 is apertured and recessed in substantially the same manner as the feed rack was in the construction shown in the preceding figures. Thus the bar 55 has a series of apertures 58 extending longitudinally thereof at letter space distances apart and the upper edge of the bar is correspondingly recessed at 59. Disengaging devices, each designated asa whole by the reference numeral 60, are adapted to be engaged with the fixed bar 55 in the same general manner as the disengag ing devices 22 are engaged with and disengaged from the feed rack in the previously described construction. Thus, each of the disengaging devices 60 is provided with an arm 61 adapted to be received in an opening 58 and is likewise provided with an enlarged head 62 adapted to be received in the corresponding recess 59 in the upper end of the fixed bar. A disengaging or cam member 63 in the nature of an angular bracket is secured by a screw 64 to the feed rack, as represented in Figs. 6 and 8. This disengaging device is provided with oppositely inclined cam faces 65 and 66 which co6perate with the enlarged heads 62 on the disengaging devices 60 to lift the feed rack and thus disengage it from its cotiperative feed pinion. A dwell 67 is provided on the device 63 between the cam faces 65 and 66 for co6peration with the heads of the disengaging de vices 60. It will be understood therefore that in the step-by-step movement of the carriage the overhanging cam member 63 on the feed rack will be brought into cooperation withthe disengaging devices 60 which are held against movement on the fixed bar 55 to lift the feed rack and disen gage it from the feed pinion and thus afford,

Without modifying the structural features of such machines. Thus, the bracket provided with the cam 6667 may be attached to the feed rack and the fixed bar 55 carrying the disengaging devices 60 may be attached to the upper fixed guide rail by the screws 57 and no changes in the structural features of the machine are necessary in order to apply the devices to machines now on the market.

In the modified form of the construction shown in Figs. 6, 7 and 8 I have employed corresponding numerals to those employed in the previously described construction where the parts are the same.

It will be observed that in each of the constructions shown the feed rack constitutes one of two feed devices, the other or cooperative feed device is the feed pinion; that in each case there is a disengaging device 22 or 63 carried by the feed rack; that there is a second disengaging device 26 or 60 separated from the cooperative feed device and cooperative with said first mentioned disengaging device to automatically disengage the feed rack from its cooperative feed device at a given point in the travel of the carriage in the direction of its feed and that in each of the constructions shown there is a feed rack having a disengaging device 22 or 63 having an engaging projection arranged at one side of the feed rack and above the teeth thereon.

Various changes may be made without departing from the spirit and scope of my invention.

Vhat I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a carriage; escapement mechanism therefor comprising a feed rack and a cooperative feed device; a disengaging device carried by said feed rack; a second disengaging device separate from said cooperative feed device and cooperative with the first mentioned disengaging device to automatically disengage the rack from its cooperative feed device at a given point in' the travel of the carriage in the direction of its feed.

2. In a typewriting machine, the combination of a carriage; escapement mechanism therefor comprising a feed rack and a cooperative feed device; a disengaging device carried by said feed rack; a second disengaging device separate from said cooperative feed device and cooperative with the first mentioned disengaging device to automatically disengage the rack from its cooperative feed device at a given point in the travel of the carriage in the direction of its feed; and means for afiording an adjustment of one of said disengaging devices to determine the point in the travel of the v carriage where the disengagement of the feed rack shall take place.

3. In a typewriting machine, the combination of a carriage; escapement mechanism therefor comprising a feed rack and a cooperative feed device; a disengaging device; a second disengaging device cooperative with said first mentioned disengaging device to automatically effect a disengagement between the rack from its cooperative feed device at a predetermined point in the feed movement of the carriage; and hand controlled means cooperative with one of said disengaging devices to move it into and out of cooperative relation with the other of said disengaging devices.

4. In a typewriting machine, the combination of a carriage; escapement mechanism therefor comprising a feed rack and a cooperative feed device; a set of individually adjustable disengaging devices; and a cooperative disengaging device separate from said cooperative feed device, one of said c'ooperative disengaging devices and the set of disengaging devices being carried by the feed rack ahd the other being carried by the frame of the machine, said disengaging devices being cooperative during the travel of the carriage in the direction of its feed to automatically disengage the feed rack from its cooperative feed device to afford a free travel of the carriage, the points in the travel of the carriage where such disengagements shall take place being determined by the individual adjustment of said individually adjustable disengaging devices.

5. In a typewriting machine, the combination of a carriage; escapement mechanism therefor comprising a feed rack and a cooperative feed device; a set of individually adjustable disengaging devices; a cooperative disengaging device separate from said cooperative feed device, one of said cooperative disengaging devices and the set of disengaging devices being carried by the feed rack and the other being carried by the frame of the machine, said disengaging devices being cooperative during the travel of the carriage in the direction of its feed to automatically disengage the feed rack from its cooperative feed device to afford a free travel of the carriage, the points in the travel of the carriage where such disengagements shall take place being determined by the individual adjustment of said individually adjustable disengaging devices; and hand actuated means operable at will to move one of said cooperative disengaging devices and set of disengaging devices into and out of cooperative relation with the other and to maintain it indefinitely in either of suchpositions, so that said disengaging devices may be rendered operative or inoperative as maybe desired.

6. In a typewriting machine, the combination of a carriage; escapement mechanism therefor comprising a feed rack and a cooperative feed device; a set of individually adjustable disengaging devices carried by said feedrack, and a cam in the path of said disengaging devices, to automatically disengage the rack from its cooperative feed device at predetermined points in the travel of the carriage in the direction of its feed.

7.. In a typevvriting machine, the combination of a carriage; escapement mechanism therefor comprising a feed rack and a cooperative feed device;v a set of individually adjustable disengaging devices carried by said feed rack, a cam in the path of said disengaging devices to automatically disengage the rack from its cooperative feed device at predetermined points in the travel of the carriagein the direction of its feed; and means whereby said cam may be moved into and out of the path of said disengaging devices.

8. In a typevvriting machine, the combination of a carriage; escapement mechanism therefor comprising a feed rack and a cooperative feed device; a set of individually adjustable disengaging devices carried by said feed rack, a cam in the path of said disengaging devices, to automatically disengage the rack from its cooperative feed device at predetermined points in the travel of the carriage in the direction ofits feed; and hand controlled means operable at Will to move the cam into and out of the path of said disengaging devices and operative to retain it indefinitely in either of such positions, so that the disengaging devices may be rendered either automatically operative or inoperative asmay be desired.

9. In a typewriting machine, the combination of a carriage; escapement mechanism therefor comprising a feed rack and a cooperative feed device; a set of individually adjustable disengaging devices car ried by and adjustable along said feed rack, each of said disengaging devices having an engaging projection arranged at one side of the feed rack and above the teeth thereon, and a cam arranged in the path of said engaging projections and cooperative therewith to automatically lift the rack and disengage it from its cooperative feed device at predetermined points in the travel of the carriage in the direction of its feed.

10. In a typevvriting machine, the com bination of a carriage; escapement mechanism therefor comprising a feed rack and a cooperative feed device; a set of individually adjustable disengaging devices carried by and adjustable along said feed rack,

each of said disengaging devices having an engaging projection arranged at one side of the feed rack and above the teeth thereon; a cam arranged in the path of said engaging projections and cooperative there- With to automatically lift the rack and disengage it from its cooperative feed device at predetermined points in the travel of the carriage in the direction of its feed; and hand controlled means operable at will to move said cam into and out of the path of the engaging projections on said disengaging devices.

11. In a typevvriting machine, the combination of a carriage; escapement mechanism therefor comprising a feed rack and a cooperative feed device; a set of individually adjustable disengaging devices carried by said feed rack, a cam in the path of said disengaging devices to automatically disengage the rack from its cooperative feed device at predetermined points in the travel of the carriage in the direction of its feed, said cam and disengaging devices being situated at the rear part of the machine; and hand controlled means extending to the front of the machine and cooperative With said cam to move it into and out of the path of said disengaging devices to render them automatically operative or inoperative as may be desired.

Signed at the borough of Manhattan, city of New York, in the county of New York, and State of New York, this 5th day of June A.'D. 191 1.

CHARLES E. SMITH.

WVitnesses:

E. M. WELLS, M. F. HANNWEBER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, .D. G. v

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