US1458133A - Typewriting machine - Google Patents

Description

' J. B. HOLDEN TYPEWRITING MACHINE Filed Feb. 5. 1922 Svweutoz WITNESSES 0 85 Gum/14a w I d 3 v 5/ t Patented June 12, 1923.

onrr rras JOSEPH B. HOLDEN, F SYRACUSE, NEW YORK, ASSIGNOR T0 REMINGTON TYPEWRITER arena ear urea.

COMPANY, OF ILION, NEW YORK, A CORPORATION OF -NEW YORK.

'IYPEWRITING MACHINE.

Application filed February 3, 1922. Serial No. 533,945.

To all toil-0m z't may concern:

Be it known that I, JOSEPH B. HOLDEN, citizen of the United States, and resident of Syracuse, in the county of Onondaga 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 and like machines, and-more particularly to features appertaining to paper feeding means.

Generally stated, the main object of my in vention is to provide simple and effective means of the character specified. Other more specific objects will hereinafter appear.

To these ends my invention consists in the features of construction, arrangements of parts, and combinations of devices set forth in the following description and particularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters indicate like parts in the different views,

Figure 1 is an enlarged detail end view of a carriage embodying my invention, theview representing the carriage as seen from the right.

Figure 2 is a detail fragmentary horizontal sectional view of the same with parts omitted, the section being taken on the line 2, 2 of Fig. 1 and viewed in the direction of the arrow at said line.

Figure 3 is a fragmentary rear elevation of the right-hand end portion of the carrialge.

i re 4 is a detail perspective view of the rlght-hand end plate or platen supportin bracket.

y invention is shown in the present into stance embodied in a Remington portable machine, only so much of the carriage of said machine being shown as may be necessary to arrive at an understanding of my invention in its embodiment therein. It should be as understood, however, that the invention is not restricted to its embodiment in such machine but may be employed wherever found available.

The paper feed mechanism of the Remington portable machine is, in the main, like that represented in my prior Patent No. 1,376,879, dated May 3, 1921, andcertain features of the present invention are in the nature of improvements thereon.

The bed plate 1 of the carriage is supported in the usual-manner to travel from side to side of the machine and supports a cylindrical platen 2 and a combined paper table and paper apron 3. The member3is supported by the bed plate 1 in the usual manner and extends from the rear or introductory side of the platen beneath and up in front of the same. The front paper feed rollers 4, diagrammatically shown in Fig. 1, are supported by the usual means, not shown.

The rear or main feed rolls 5 are mounted as a pair of feed rollers, may be employed.

Extending from the lower edge of the supporting bar 8 are fingers 9 turned to form bearings 10. These bearings receive and are adapted to turn on pivot rods 11 carried by bearing members 12 of sheet metal bracket plates 13 secured to the bed of the carriage by screws 14. The member 8 has two forwardly extending integral arms 15. The free end portions of a wire sprin 16 bears down on said arms and forces theloar 8 forwardly on its pivots 11, thereby forcing'the feed rolls against the platen or the paper thereon. The spring 16 is fixed at the central portion thereof to a bracket 17 secured to the carriage bed. Said spring extends in opposite directions from the bracket to coact at its free end portions with the two arms 15 on the bar 8. In this manner the main feed rollers are supported for pivotal movement with the supporting bar 8 towards and away from the platen around the pivot rods 11.

In order to effect a release of the feed rollers with the exertion of but little force, I have provided improved releasing means that are simple in construction, and effective in use. It may first be explained that in the construction disclosed in my said prior patent theforward feed rollers, corresponding to the rollers 4 hereinyhave their mountings or carriers so arranged with reference to the arms 15 that .the release of the main feed rollers 5 simultaneously effects a release of the forward feed rollers. While I contemplate embodying this same structure in the present instance, it is unnecessary for the purpose of this invention to show such feature of the construction.

The right-hand end of the carrying bar 8 is formed with a barrel-like bearing portion 18 in which a pivot pin 19 is seated and held firmly. This pin is formed with a circumferential shoulder 20 and the bearing portion 21, the outer portion of the pin beyond the bearing being reduced and threaded at 22. A floating sheet metal feed roll release lever or member, indicated as a whole by the reference numeral 23, is perforated to receive the bearing 21 of the pivot pin and thus pivotally support the release lever intermediate its ends on the pivoted carrying bar 8. The release lever bears at one side against the shoulder 20 and its thickness is such that when a nut 24 is screwed up against the bearing 21, said lever will be confined between the shoulder and nut without exerting a binding force on the lever. The release lever is bent laterally at 25 to provide an upper portion off-set beyond the right-hand end of the platen and paper table, and which terminates in a finger piece 26. The lower forward edge of the lever is formed with two notches 27 and 28 and with an intervening cam 29. This edge of the release lever is adapted to co-act with an abutment, contact or fulcrum member, indicated as a whole by the reference numeral 30. This member is preferably made of sheet metal and comprises a foot piece 31 slotted fore and aft of the machine, at 32, to receive the stems of two headed screws 33. When the screws are loosened the member 30 may be adjusted fore and aft of the machine, and is firmly held in adjusted position on the carria e by tightening the screws.- The rear end of the member 30 is bent upwardly and then rearwardly and is folded on itself to provide a double thickness of metal that presents a rounded edge, contact, abutment or fulcrum 34. This rounded edge conforms substantially to the contour of each notch 27 and 28 in the release lever.

With the parts in the normal position shown in Fig. 1, the feed rollers are pressed by their spring against the platen or the paper thereon, the release lever 23 at this time offering no resistance against a plication of pressure by the feed rolls. 15 rearward movement of the finger piece 26 from the position shown in Fig. 1, results in turning the lever 23 on its pivot pin 19. This forces the cam 29 a ainst the fixed abutment 34 and results in a wedging or cam ming action between the two- The release lever therefore not only fulcrums on the,

member 30 but at the same timereceives a floating bodily movement carrying the pin 19 with it. bar 8, it follows that the bodily movement of the lever causes the bar 8 to swing on its pivots 11, thereby moving the feedrollers away from the platen. At the end of the described releasing movement of the feed rollers, the walls of the notch 28 in the release lever will be brought to bear against and seat on the abutment 34, resisting a return movement of the parts and holding the feed rollers released. Slight forward pressure exerted on the finger piece 26 is sufficient however to release the notched portion 28 of the lever from the abutment 34, when the parts are free to be returned by the spring 16to normal position. 1

It willbe understood that adjustment of the member 30 regulates the action of the paper feed releasing means and determines the extentto which the feed rollers may be thrown off by the release lever.

By the present construction I am enabled to extend a work sheet or envelope beyond the right-hand end of the platen, and nevertheless effectively feed the same with the platen without being interfered with by the closely associated parts arranged at this end of the platen. The construction and arrangement of the paper feed releasing means thus far described contribute to this desired result. Thus it will be seen that a considerable portion of the paper feed release lever, and the parts associated therewith, are contained within a space bounded by parallel planes coincident with the ends of the platen. Such parts nevertheless do not cross lines coincident with the cylindrical surface of the platen since they are arranged beneath or back of the combined paper table and apron. It follows, therefore, that such parts do not extend into the path of the work sheet fed through the machine, even though the work sheet be extended a limited distance over andbeyond the right-hand end of the platen,

Inorder to further aid in accomplishing this result, I construct the right-hand platen supporting end plate as shown in detail in Fig. 4. This support as a whole is indicated by the reference numeral 35, and pref- 'erably is in the nature of a sheet metal bracket having its foot piece 36 secured by screws 37 and 38 and a nut 39 to the carriage. The end plate proper of the support comprises a rear portion 40 arranged in the vertical fore and aft plane in which the platen shaft 41 receives its support in the end plate. This so-called rear portion of the end plate may be said to extend forward to about the point indicated by the reference numeral 42. From an inspection of Fig. 1 it will be seen that the upper edge 43 of this rear portion of the end plate terminates be- The pin being carried by the fore it reaches lines coincident with the cylindrical surface of the platen. As viewed from the end of the carriage a clear space 44 appears between this upper edge 43 and the platen, and through this space a work sheet that overlaps the right-hand end of the platen may be fed. I

That portion of the end plate forward of the point indicated by the reference numeral 42 may be regarded as the forward portion thereof. This portion includes an upwardly and rearwardly extending inclined supporting arm 45, apertured at 46 to receive a flanged bushing 47 in which the platen shaft 41 is received. That portion of the arm 45 which crosses lines coincident with the cylindrical surface of the platen is bent at 48 to form a portion 49 ofl'set outwardly from the plane of the remainder of the end plate proper and the point of support for the platen shaft. This bending of the arm in the manner shown provides a trough-like portion substantially U-shaped in cross section, thereby providing a recess 50 in the end plate at the only portion thereof which crosses lines coincident with the cylindrical surface of the platen. As the work sheet that overlaps the right-hand end of the platen is advanced or fed forward, it will pass over the upper edge 43 of the end plate, and through the recess 50 therein, without be ing obstructed by any part of the construction. This I have attempted to show by the dotted line representation of an envelope, as

-' indicated at 51 in Fig. 3.

The features hereinbefore described, by which I am enabled, without increasing the length of the carriage, to provide for receiving and feeding Work sheets of greater width than the length of the platenwill accommodate, are of importance, especially in portable machines in which it is advantageous to make the machine as small and compact as possible, consistent with high efiiciency. These features enable the present machine to receive and feed large sized envelopes of a standard size which could not be used in the Remington-portable machine as formerly constructed, without folding the envelopes.

ll have shown the end plate, constructed as described, at one end only of the carriage, which, however, suifices for my present purposes. The end plate at the other end of the carriage may be of the usual or any desired construction. It should be understood, however, that the same character of end plate as that described herein may be used at each end of the carriage.

T have stated that the angular sheet metal bracket member 35 which includes the righthand end plate is secured by screws 37 and 38 and a nut 39 to the carriage. It will be observed that the axis of the headed screw 37 passes at right angles throughthe axis of the platen shaft 41 and is introduced through an opeiiing in the bed plate and is received in a tapped opening 52 in the foot piece 36 of the bracket. The second headed screw 38 extends from beneath the bed plate 1, up through an opening therein and through a fore and aft slot 53 in the foot piece, and has the nut 39 threaded on the screw. It will be understood that by this construction the loosening of the nut 39 and. screw 37 enables a swinging adjustment of the bracket to be effected around the screw 37 as a center, thereby enabling the bearings for the platen shaft 41 to be properly aligned to receive the shaft. After the proper adjustment has been obtained, the screw 37 and nut 39 may be tightened to secure the bracket in its adjusted position and hold it against movement on the bed plate of the carriage.

The screws 33 by which the member 30 is secured in its adjusted position are threaded into tapped openings 54 in the foot piece of the bracket 35, and do not engage the bed plate of the carriage. It will be seen, therefore, that said member 30 is carried wholly by the bracket and is adjusted with it. By the indepepdent adjustment of the member 30, said member may have its position altered to compensate for its adjustment with the bracket. 3

Various changes may be made without departing from my invention.

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

1. In a typewriting or like machine, the combination of a carriage, a cylindrical platen, and a platen frame comprising end plates at least one of which is made of sheet metal and at its rear portion terminates at the upper edge before it reaches lines coincident with the cylindrical. surface of the platen and at its front portion crosses said lines to form a support for the platen shaft, the said front portion being bent outwardly at and near the said crossing to form a recess through which a side edge of paper extending beyond an end ,of the platen may pass as it is advanced with the platen.

2. In a typewriting or like machine, the combination of paper feed rolls, a support therefor, a feed roll release lever carried by and pivoted on said support and having a contact thereon with a notch therein, and a fulcrum member against which the contact on said lever is adapted to bear to shift thesupport and release the feed roll and with which the notched portion of said lever is adapted to engage to hold the lever and the parts controlled thereby in the released position.

3. In a typewriting or like machine, the combination of paper feed rolls, a support therefor, a feed roll release lever carried by and pivoted intermediate its ends on said support and having a contact at one free end and a finger piece at the other, an abut-- ment with which the contact on the lever coacts to effect a cammin action of the lever to displace 'it and sai support and thus release the feed rolls, and means for affording an adjustment of said abutment to different set positions and for holding it fixed in any of said setpositions.

4. In a typewriting or like machine, the combination of paper feed rolls, a support therefor, a feed roll release lever carried by and pivoted intermediate its ends onsaid support and having a finger piece at one end and a cam and notch at the other, and an abutment against which said cam is adapted to bear to displace the lever and eflect a movement of the support through the pivotal connection which connects the latter with said lever and thus effect a release of the feed rolls, the construction being such that said notch in the lever engages the abutment when the lever moves the parts to releasing position and holds them in such position.

5. Ina typewriting or like machine, the combination of a platen, paper feed rolls co-operative therewith, a hand operated release lever, and means combined therewith to enable said lever to move said rolls away from the platen and to retain the rolls and emma lever in the releasing position, said means including an adjustable member on which said lever tulcrums and the adjustment of which regulates the extent of throw-0E of the rolls.

6. In a typewriting or like machine, the combination of a platen and supporting means therefor including an end plate in which the platen is journaled, and means for enablin said end plate to receive a swinging a justment around an axis that extends at substantially right angles to the axis of the platen.

7. In a typewritin or like machine, the combination of a p aten and supporting means therefor including an angular bracket in which the platen is journaled, said bracket having a foot piece by which it is secured to the bed of the carriage, and means coacting with said foot piece to enable the bracket to be adjusted around an axis at substantially right angles to the axis of the platen and for securing the bracket in its adjusted position.

Signed at Syracuse, in the county of Onondaga and State of New York, this 25 day of January, A. D. 1922.

JOSEPH B. HOLDEN,

Witnesses:

v HERBERT E. BRIDGWATER,

RALPH R. SMITH.

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