US1579749A - Typewriting machine - Google Patents

Description

April 6 1926. 1,579,749

E. E. BARNEY TYPEWRITING MACHINE Filed Oct. 13, 1924 Hi WW5 WITNESSES \NVENTOR Patented Apr. 6, 1926.

UNITED. STATES I PATENT OFFICE.

EDWIN E. BARNEY, or NEW ROCHELLE, NEW YoRK, Assrenon TO REMINGTON TYPE- WRITER comranxor ILION, new YORK, A conronarxon or new YORK.

TYI'EWRITING MACHINE.

Application filed O'ctober 13, 1924-. Serial m 743,199.

To all whom it may concern:

Be it known that I, EDWARD E. BARNEY, citizen of the United States, and resident of New Rochelle, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

My invention relates to typewriting machines and more particularly to means for holding a platen clutch disengaged so that the platen may be turned indefinitely in dependently of the line spacing wheel.

The main object of my invention, generai ly stated, is to provide improved means of I the character specified which are simpl'erin construction, effective in use and may be readily embodied in existing machines without material modification of the structural features thereof.

To theabove and other ends which will hereinafter appear, my invention consists in the features of construction, combinations of devices and arrangements of parts hereinafter described and particularlypointed out in the appended claims.

In the accompanying drawings wherein like reference characters indlcate correspond ing parts in the different views, Figure 1 is an enlarged fragmentary detail front elevation with parts in section of the left-hand end portion of a carriage equipped with the device of my invention.

Figure 2 is a detail fore-and-aft vertical sectional view of the same with parts omitted, the view being taken on the line 2'2 of Figure 1 and looking in the direction of the arrow at said line. i c

Figure 3 is a fragmentary top plan view with parts in section showing a portion of the construction disclosed in Figure 1.

Figure 4 is a detail perspective View of the latch and the slide which supports it; the parts being shown separated for clearer illustration. I c

Figure 5 is a detail transverse sectional view taken on the line 5'5 of Figure 1. and looking in the direction of the arrowat said line. A

Figure 6 is av detail sectional view-taken on the line 66 of Figure .1 and looking in the direction of the arrow at said line.

I have shown my invention embodied in the present instance in a No. 5 Remington Noiseless machine in which it may be readi as it now exists.

ily incorporated without materially modify ing the structural features of said machine It should be understood, however, that the invention is not restricted to use in such machine but maybe employed in typewr'iting or like machines generally.

The platen 1 is mounted to turn in bean ings in a carriage that comprises end plates or brackets 52 united by a bearing rail 3 and other connecting rods and devices not shown.

Any suitable clutch maybe employed to connect the line spacin'gwheel 4: and the platen to turn together, and when the clutch is released to permit the platen to be turned independently of said wheel. The clutch shown in the present instance comprises radially disposed pawls 5 mounted in radial ways 6 formed in a member, disk or casting" 7, supported in a manner to be hereinafter described and on which the line spacing wheel is loosely mounted. The disk 7 hastapped openings to receive headed screws 9 by which a plate 10 is secured to the member 7 and retains the line spacing wheel in place thereon. The plat'elO iscentrallyapertured and riveted at 11 to a supporting sleeve'12. The pawls 5, are adapted to move radially in their ways into and out of engagement with inwardly directed teeth 13 formed on the ring-like line spacing wheel 4. When the. pawls are moved out and engage the teeth 18, the line spacing wheel and platenare clutched to turn together. When the pawls are ithdrawn from the teeth 13, the platen 'is free to be turned independently of the line spacing. wheel, which at this time is held againstturning movement by-the usual spring pressed roller detent 14. -Anendless contractile spring l5is employed to withdraw the pawls 5 to releasing position. This spring is received and seated in depressions 16 in the outer-faces of the pawls and exerts its power towithdraw allthree pawls. The means whereby the pawls are forced to en: gaging position and which enables them, when desired, to be withdrawn to releasing position, comprises three plungers 17 each having a cylindrical cross section at pointsin the length'thereof. These plungers are seated for longitudinal sliding movement'in semi-cylindrical aligned bearing recesses 18 and 19, respectively, in the periphery of a cylindrical spindle 20' and a stud 21; The stud 21 is fixedly secured to the casting 7 on which the line spacing wheel is mounted and is also received in a bearing sleeve 22 secured to the platen. A pin 23 connects said sleeve and stud and the inner end portion of the sleeve receives a bearing in an opening in the left-hand end plate 2 of the carriage. The longitudinally movable spin dle 20 is received within and surrounded by the sleeve 12, and is supported at its outer end portion in a bearing opening 24 in the depending arm 25 of a bracket 26. Said bracket is secured to the left-hand end plate 2 of the carriage frame by screws 27 and 28. A finger wheel 29 has a hub 30 by which it is secured to the outer end of the spindle 20 by a screw 81. The outer end of the sleeve 12 has three inwardly projecting ears 32 formed thereon and each of which extends into a companion bearing recess 18, causing the sleeve 12, (together with the parts connected thereto including the platen), and the spindle 20 to turn together, but enabling the spindle to receive an independent longitudinal movement. Each of the ears 32 also forms a bearing for the outer end of a coiled expansion spring 33. Each of these springs surrounds a reduced stem or pin 34 on the associated plunger 17, and bears at its inner end against the body portion of such plunge and tends to shift it in. The movement of each plunger under the action of its spring forces the inclined face on the lunger against a correspondingly inclined face 36 .on the inner end of the companion pawl 5, thereby forcing the latter out into engagement with the teeth 13 on the line spacing wheel and connecting the latter to turn with the platen. It will be observed that each plunger 17 has a cut-out 37 therein in which is received a ring 38 secured to the inner end of the spindle 20. The outer wall of each cut-out 37, co-acting with the ring 38, under the power of the companion spring 33 forces the spindle 20 and the finger wheel 29 carried thereby into the clutch engaging position, shown in Figure. 1. Therefore, in the position of the parts shown in this figure the finger wheel 29 is connected to turn with the platen, as it is at all times, and the line spacing wheel is connected to turn with the platen. hen, however, the finger wheel and spindle 20 are drawn out the plungers 17 will be withdrawn, enabling the spring 15 to withdraw the pawls 5 to disengaging position, and enable the platen to be turned by the finger wheel 29 independently of the linespacing wheel, which at this time is held against turning movement by the spring pressed roller detent 14. hen the operator releases the finger wheel 29, the parts will be returned to the Figure 1 position re-engaging the platen clutch. The parts, as thus far described, are substantially the same as those employed in the No. 5 Remington Noiseless machine and are not of my invention but are disclosed and claimed in the copending application of George G. Going, Sr. No. 19,204 filed Mch. 30, 1925.

In accordance with my invention I provide simple and efficient means co-acting with the construction thus far described to positively latch, lock or hold the clutch disengaged, when it is desired to use the machine indefinitely in this condition for irregular spacing.

I reduce the outer end portion 20 of the spindle 20 where it is received in the hub 30 of the finger wheel, thus forming a circumferential shoulder 39 (see Fig. 1) where the reduced portion of the spindle joins the main body portion thereof. This reduced portion 20 is received in and projects through an opening 40 in a depending ear 41 of a slide 42. The construction is such that the inner end of the hub 30 on the finger wheel co-acts with the outer side of the car 41, whereas, the shoulder 39 co-acts with the inner face of said ear. This construction causes the slide to partake of the longitudinal movement of the spindle with finger wheel, but permits the platen to be rotated independently of the slide. The depending ear or arm 25 on the fixed bracket 26 is pro: vided with a horizontally disposed guide slot or opening through which the slide projects, and by which the slide is guided in its rectilinear movement and held against turning movement. Pivoted at 44 .on the upper side and inner end of the slide is a latch,

catch or locking device, indicated as a whole by the reference numeral 45. This latch is provided with depending finger pieces 46 on opposite sides thereof thatproject down on opposite sides of the slide 42 and co-act therewith to limit the independent pivotal or lateral movement of the latch on the slide. The latch also extends through the guide slot 43 in the fixed bracket and is provided with a locking shoulder or engaging portion 47.

- When the latch is in the dotted line position shown in Figure 3, it is ineffective to hold the spindle 20 and finger wheel 29 in the drawn-out, clutch-releasing, position. When, however, the latch is shifted to the full line position in said figure, the shoulder 47 engages the bracket near one end wall of the slot 43 and prevents a return movement of the slide 42, the spindle 20 and the platen clutch controlled thereby. The clutch is thus held released without interfering with the turning of the platen independently of the line spacing wheel by the finger wheel 29.

By the construction and arrangement of the parts which enable the latch 45 to slide in and out with the finger wheel 29 and controlling spindle 20, the latch is at all times maintained in substantially the same relation to the finger wheel 29, so that the latch may be readily manipulated for int cpendent pivotal movement by fingers of the same hand of the operator that grasp the finger Wheel 29, aliording a convenient means for locking and releasing the latch.

This is a matter of importance in combination with the clutch mechanism disclosed herein, which was specially devised as a one-hand control at the left-hand end of the platen, as fully brought out in said hereinbefore mentioned Going application. It will be observed that in order to release the clutch a pull'to the left, or in the direction of the letter feed movement of the carriage, is exertedonthefinger wheel 29. Since this pull is resisted by the carriage escapement mechanism there is no necessity of holding the carriagewith one hand while releasing the clutch with the other, therefore providing a one-hand control for shitting the clutch, and also by the present invention for locking it.

WVhile'the latching means of my inven- 'tion may be readily combinedwith the platen clutch of a Remington-Noiseless inachine without materially altering the construction of the latter, such means may be embodied in other typewriting machines and may be combined with other forms of platen clutches without departing from my. invention as it is defined in the accompanying claims.

What I claim as new and desire to secure by Letters Patent is y 1. In a typewriting or like machine, the combination of a carriage, a platen carried thereby, a line spacing wheel, a clutch for gage it from a fixed part of the carriage to positively hold the spindle against return movement from clutch releasing position.

2. In a typewriting or like machine, the combination of a carriage, a platen carried thereby, a line spacing wheel, a clutch for connecting the line spacing Wheel and platen to turn together or permitting the platen to turn independently of the line spacing Wheel, a spindle movable longitudinally .in and out to control said clutch, a slide mounted on the carriage to partake of the longitudinal movement of said spindle, and a hand controlled latch carried by and mounted for independent movement on said slide and adapted to be shifted into engagement with a fixed part of the carriage to hold said spindle against return I to turn togetheror permitting the platen to turn independently of the line spacing wheel, a spindle movable longitudinally in and out to control said clutch and operatively connected to turn with the platen, a slide mounted on the carriage andoperatively connected to said spindle to partake of the longitudinal movement of the latter, a finger wheel connected to said spindle, and a hand-controlled latch pivoted on said slide to move therewith and to receive an independent movement thereon into and out of engagement with a fixed part of the carriage and adapted to hold the spindle in its clutch releasing position.

4. In a typewriting or like machine, the combination of a carria e, a platen carried thereby, a line spacing wheel, a clutch for connecting the line spacing wheel and platen to turn together or permitting the platen to turn independently of the line spacing wheel, a spindle movable longitudinally in and out to control said clutch, a bracket secured to the carriage and having a guide opening therein, a slide received in said guide opening and. operatively connected to said. spindle to partake of the longitudinal movement of the latter and permit an independent rotation of the spindle, and a hand controlled latch mounted on said slide for movement therewith and for independent movement into and out of engagement with saidbracket and operative to hold the spindle against return movement from its clutch releasing position. v v

5. In a typewriting or like machine, the combination of a carriage, a platen carried thereby, a line spacing wheel, a clutch for connecting the line spacing wheel and platen to turn together or permitting the platen to turn independently of the line spacing wheel, a spindle movable longitudinally in and out to control said clutch, a bracket secured to the carriage and having a guide opening therein, a slide receivedin said guide opening and operatively connected to said spindle to partake of the longitudinal movement of the latter and permitan independent rotation of the spindle, and a hand controlled latch pivoted on said slide and provided with finger pieces on opposite sides thereof for shifting the latch in opposite directions around its pivot into and 1 out of engaging position, said finger pieces co-acting with said slide to limit the independent pivotal movement of the latch on the slide.

6. In a typewriting or like machine, the

combination of a carriage, a platen carried thereby, a line spacing wheel, a clutch for connecting the line spacing wheel and platen to'turn together or permitting the platen to turn independently of the line spacing wheel, a spindle movable longitudinally in and out to control said clutch and operatively connected to turn with said platen, a finger wheel connected to said spindle, a slide, means on the carriage for preventing said slide froniturning with said spindle, operative connections between said spindle and slide to cause the latter to partake of the longitudinal movement of the spindle, and a hand controlled latch mounted on said slide for movement therewith and for independent movement thereon into and out of engagement with a fixed partof the carriage, whereby when said latch is engaged the spindle will be held against return movement from its ciutch releasing position.

7. In a typewriting or like machine, the combination of? a carriage; a platen carried thereby, a line spacing wheel, a clutch for connecting the line spacing wheel and platen to turn together or permitting the platen to turn independently of the line spacing wheel, a spindle movable longitudinally in and out to control said clutch and operatively connected to turn with said platen, a finger wheel connected to said spindle for turning the latter and moving it longitudinally, a bracket secured to the carriage and having a guide opening therein, a slide received in said guide opening and prevented from turning with the spindle by said bracket, operative connections between said slide and spindle to cause them to move together in the longitudinal movement of the spindle and permitting the latter to turn independent-ly of the slide, and a latch pivoted on said slide to move therewith and to receive an independent movement thereon, said latch having an engaging shoulder adapted to engage the bracket at one side of the guide opening therein and hold the spindle against return movement from its releasing position, the latch alsobeing provided with finger pieces on opposite sides thereof by which the independent pivotal movement of the latch on the slide may be effected, said finger pieces co-acting with the slide to limit he: pivotal movement of the latch.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York, this 9th day of October, A. D. 1924-.

EDVIN E. BARNEY;

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