US1005784A - Escapement for type-writers and recording-machines. - Google Patents

Description

' J', HABER.

ESUPEHBNT F011 TYPE WRITERS AND BCORDING HAGHINES.

APPLIUATION HLBD'I'EB. 1, 1909.

1,005,784 Y Patented' oet, 1o, 1911.

milvf I I TED s'jrA-{EATENT OFFICE.

ensure Meer., or Portas' B Lurr, MISSOURI, AssIGNon 'ro DALToN ADDING MACHINE contraint, or sr. LoUIs, MIssoURI, A CORPORATION 4 or MISSOURI.

nfsCAri-:MENTH non TYPE-WRITERS AND RECORDING-MACHINES.

Be it known that IJ'JosEPH Rham, aA citi- 'zen lof the United States, residing at Poplar flu', Missouri, have invented a new and useful Escapement for 'Type-.Writers and Recording-'Machinea of which the following is a specification..

This invention relates to escapements for tewrlting and other recording machines w erein a lateral step by step movement is imparted to the paper carriage during the operation of the machine.

In a companion application filed January 18, 1909, Serial No. 472,823,1have described the `construction and operation of an improved escapement including the escapement shaft and wheel and adjustable pawls movable across the path of the escapement wheel and adjustable vwith respect to each other te effect speed or regular escapement 'on their operation. j

j The, present invention relates to mechanism to be embodied in a machine in combination with the mechanism just referred to,

and includes an improved mechanism for controllin the operation of the escapement in its di erent adjustments, and an improved device for operating said controlling means.V

In the accompanying 'drawings Figure 1 is 4a perspective view yof the escapement embodying my present invention. Fi 2 is a perspective View of the controlling shaft Vdetached from the remaining. portion of the -mechanism. Fig. 3 is a perspective view of the tension regulating device whereby the Vtension of the restoring spring is regulated. `Figs. 4, and 4daresectional views of the controllingA shaft in different positlons.

Fig.v 7 is a sectional view illustrating the arrangements of one of the stop devices whereby movement of the rocker carrying the escapement pawls is limited.

The hanger or support 1 is constructed substantially as described in my companion application, havingbearings for an escape-A ment shaft 2 to one end of which a pinion 3 attached and .arranged for. engagement with thev rack on the paper carriage in the well understood manner'. The opposite end of the shaft 3 supports a housing 4 and the escapement wheel 5, the latter being mounted loosely on the shaft and interlocked with the housing 4 against rotation in one direction. The*lower portion of the hanger' l Specification of Letters Patent. Patented Oct 10, 1911..

l Applicationpaleu February i, 1909.' serial No. 475,403.

'i'tmay concern:`

pawl 7 actuated in one direction by spring 8 and whose movement in that direction is limited'by an offset 9 on the rocker. A pawl 10 1s also carried by the rocker 6, and lmay be moved and locked at either sideof the pawl 7 as required to adjustthe two pawls for regular or speed escapement as desired and as fully described in `my companion application above referred to. The pawl 10 is pivotally supported and may be adjusted and held at either side of the pawl 7. A locking pin 10a is movably mounted in a hole in an arm on the rocker 6 and may be'wit'hdrawn so as to permit adjustment of the pawl 10 from vone position to another. The in 10l1 extends against the side of the pawl O effectively to lock or hold said pawl in either adjustment, whether for speed or regular eseapement. By oscillation of the rocker 6 thepawls 7 and 10 are moved alternately into engagement with the wheel 5, thereby permitting the shaft 2 to rotate intermittently and the paper carriage controlled thereby to move laterally. Movement of the rocker 6 in one direction is the hanger 1, and is provided near its lowerl end withA a plane'surface 14.- At the lower end of the hanger 1 an abutment or stop pin 15 is carried and held against the shaft 13 by a spring 16. Said pin is in position to be engaged by a projection 17 on'the rocker when the latter is oscillated by downward movement of the arm 11, and thereby to stop further movement of the rocker. Above the rocker support a pin 18 is sup'- ported in a manner similar to the pin 15, and is arranged as a stop and abutment for the rocker in its idle or rest position. Opposite the end of the pin 18 on the shaft'13 a plane surface 19 is formed at right angles to the plane surface 14, andl a plane surface 2O is formed on the shaft on the side oppo- .site from said surface 14. A thumb nut 21 on the upper end of the shaft 13 and above ment for regular or speed cscapement. A

pointer 22 attached to the shaft indicates in I rand arrangement of the parts embodyingy which adjustment the escapement is located.

Adjustment of the pawls 7 and 10 for regular and speed eseapement is effected in the same manner as described in my companion application above referred to. By. turning the shaft 13 until the plane surface 19 is opposite the pin 18, the pawl 10 having been previously adjusted, speed escapement will be. effected. The spring 12 will t draw the rocker (3 to hold the pawl 10 in engagement with the eseapement wheel, and

`during the downward movement of the arm 11 said pawl 10 will move out of engagement with the wheel, and put the pawl 7 in position to be engaged by the advancing tooth on the wheel. In the adjustment shown in the drawing, which is for regular escapement, the shaft 13 presents a round surface to the pin 18 and holds the pawl 7 in engagement' with the escapement wheel so that on downward movement of the arm 11 the pawl 7 is swung out of engagement with the escapemcnt wheel and the pawl 10 prevents operation of the escapement until return movement takes place. Adjustment of the shaft 13 to present the plane surface 19 to the xpin 1S also presents the round surface of the shaft to the pin 15, so that the rocker G moves thereon the same distance at each operation, whether adjusted for regular or speed escapement.

One end of the spring 12 is attached to the lower arm of the bell crank lever 23 pivoted to the under side of the hanger or support 1. A bell crank lever 24 is pivoted beside the lever 23 and has an arm 25 extending under the upper arm of lsaid lever 23, and an extension 2G bearing against the shaft 13. IVhen the shaft 13 is adjusted to present a round surface to the pin 18, the extension 26 rests againstthe plane surface 20. When, however, the shaft 13 is turned to bring the plane surface 19 against the pin 18, a round surface of theushaft is presented a ainst the extension 26 as will be obvious reference to Fig. 4, thereby holding the tension of the s ring' 12 constant or unchanged so that the rocker G will be under the same tension at all times, eX- cept when voluntarily changed. A screw 27 operates through the upper arm of the lever 23 and against the arm of the lever 24, so that by operation of said screw the two levers may be adjusted with respect to each other. By moving the lower arm of the lever 23 in one direction the spring 12 will be extended and its tension increased, and moving it in the opposite direction it will be relaxed. The screw 27 projects through a hole 28 in the upper portion of the hanger 1, affording means for regulating the tension of the spring 1,2 from the top of the machine. Y

I am aware that there may be modifications and alterations in the construction not restrict myself to identical feature l' construction or arrangement, but

vlVhat I claim and desire to secure b v Letters Patent is:

1. In an escapement mechanism, the combination vwith a pawl carrierT and pawls carried thereby, and means for adjusting said pawls for regular or speed escapement as desired, of stops for said pawl carrier. and a single element for adjusting said stops to correspond with the adjustment of the pawls, substantially as specified.

2. In an escapement mechanism, the combination with a pawl carrier, pawls carried thereby, and means for adjusting said pawl.- for regular or speed escapement as desired, of stops for limiting the movement of the pawl carrier in both directions, and a single element operable to adjust said stops to cor-l respond with the adjustment of the pawls, substantially as specified. l l

3. In an escapement mechanism, the combination with a pawl carrier, pawls carried thereby and means'for adjusting said pawls for speed or regular escapement as desired, of independently movable stops for limiting the movement of said pawl carriers in both directions, and an operating element for adjusting said stops to correspond with the adjustment of the pawls for speed or regular escapement, substantially as specified.

t. In an escapement, the combination of'a.

pawl carrier, pawls carried thereby, and means for adjusting said pawls for regular or speed escapement as desired, of in dependently movable stops arranged in the path of movement of the pawl carriers to limit the movement of said carrier in both directions, and a manually operable device for adjusting both the said stops at one operation, substantially as specied.

5. In an escapement, the combination with pawl carrier, pawls carried thereby, and means for adjustingj said pawls for speed or regular escapement as desired, of independently movable stops arranged to limit movement of the pawl carrier, in both directions, manually operable means to adjust both of said stops at a single operation, and an indicator controlled by said means indicating the adjustment of the escapement, substan-v stops for 'limiting movement of the pawl lng movement of the pawl carrier, a' spring actuating the carrier inone direction, and a single element vfor adjusting said stops in different positions and holding the spring i at substantially the same tension.

tially uniform 9. In an escapement mechanism, the combina-tion with a pawl carrier and the escapement pawls carried thereby, of stops limiting the movement of the paWl carrier in both directions, a spring actuating the pawl carrier in onedirection, and an element operable vto change the position of said stops and hold the spring at substantension, substantially as specied.

10. In an escapcm t\ the combination with a pawl carrier, o stopslimiting movement of said carrier in both directions, and means for adjusting al1/of said stops in different positions at a single oy eration as required for speed and regular gescapement.

l1. In an escapement, the F*combinationl with a pawl carrier, of stops limiting movement of said pawl carrier in both directions, a device operable to adjust said stops in -difl'erent positions, a spring actuating said pawl carrier, and means operated by said 35 device effectively to regulate the tension off said spring, substantially as specified.y

In testimony whereof, I hereunto aiiix my signature to this specification this 13th day of January, 1909, `in the presence 'of two 40 witnesses.

i JOSEPH HABER; [La] Witnesses I CHARLES Proms,

JOHN' E.`GREVE.

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