US2111909A - Ernst breitling - Google Patents

Description

March 22, 1938. E. BREHTLING CASH REGI STER 6 Sheets--Sheet 1 Filed July 6, 1935 Emit Breitling His (lttorneg March 22, 1938.

E. BREITLING CASH REGISTER Filed July 6, 1935 5 Sheets-Sheet 2 I5 maentcr Ernst Breitling m AMW His (Ittorneg March 22, 1938. E BREITLHNG 2,111,909

CASH REGISTER Filed July 6, 1935 Zmventor Ernst Breitling His attorney Patented Mar. 22, 1938 UNITED STATES PATENT OFFIQE CASH REGISTER Application July 6, 1935,

In Germany July 12,

10 Claims,

his invention relates to cash registers and the like but is more particularly directed to repeat mechanisms for such machines.

It is broadly an object of this invention. to de- 5 vise a. unique repeat mechanism. for cash reisters and like machine-s.

A more specific object is. to: contrive means whereby the amount of the immediately preceding operation may be repeated without setting up a condition to effect said repeating during said preceding operation.

Another object is to provide means under control of a manipulative device to lock the amount differential members in the positions to winch they were adjusted in the preceding operation in order to repeat the amount of said preceding operation.

Still another object is to provide an interlocking mechanism between the repeat starting bar and the amount keys to prevent the depression of both in the same operation.

A further object is to contrive means to prevent depression of the repeat starting bar when the total control lever is out of adding position, said means also adapted to lock the total control lever in adding position upon depression of the repeat bar.

With these and, incidental objects in view, the invention includes certain novel features of construction and combination oi parts. the essential elements of which are set forth in the appended claims and a preferred form or embodiment of which is hereinafter described with reference to the drawings which accompany and form a part of this specification.

In the drawings:

Fig. 1 is. a cross-sectional view taken just to the right of one of the amount banks and depicts said amount bank and its associated differential mechanism.

Fig. 1A. a detail view showing the connections between the totalizer element and the main differential member.

Fig. 2 is a sectional view as observed from the right of the machine, illustrating the repeat starting ear and associated mechanism that locks the amount differentials during repeat operations.

r Fig. 3 is a detail View of the total control lever locking mechanism associated therewith.

Fig. l is. a longitudinal sectional view as observed irom the rear of the machine, taken along line Z- 'i Fig. l.

5 5 is a detail View of the combined total Serial No. 30,126

and repeat control lever for a modified form of repeat mechanism.

Fig. 6 is a sectional View as observed from the rear of the machine taken along line 0-6 Fig. 5.

GENERAL DESCRIPTION The differential mechanism for each amount bank of the machine embodying the instant invention comprises comp-anion scissors-like members with a complementary movement. In adding operations these members position their associated indicator and type wheel differential actuators and the wheels of the selected tctalizer commensurate with the value of the depressed amount keys and said actuators in turn position their corresponding indicating mechanism. and printing wheels commensurate with the value of the depressed amount keys. In this type of differential mechanism the actuators are not returned to a neutral or Zero position at the end of machine operation but remain in the positions in which they were set by the companion members during the machine operation. Consequently in the succeeding operation the actuators are moved from the positions in which they were set during the preceding operation directly to their new positions. In totalizing operations the corresponding wheels of the selected totalizer position the scissors-like companion members commensurate with the amount on said totalizer wheels and said companion levers in turn position the actuators and the actuators in turn position the indicators and the type Wheels commensurate with the amounts on the Wheels of the totalizer.

For a full disclosure of the differential mechanism outlined above reference may be hadto Letters Patent of the United States No. 1,792,569 and No. 1,899,455, issued respectively February 17, 1931 and February 28, 1933, to Ernst Breitling.

If it is desired to repeat the immediately preceding operation, the operator depresses the repeat starting bar, or in the modified form moves the total-control lever to repeat position. This. actuates. mechanism that locks the indication and type wheel differential actuators for the amount banks in the positions in which they were set in the preceding operation. The actuators then position the companion levers to repeat the amount of the preceding operation.

With this type of repeat mechanism an amount may be repeatedly added in one or more totalizers and amounts may be transferred from one totalizer to one or more of the remaining totalizers by reading or resetting the first-mentioned totalizer and by adding this amount in the desire totalizers in. subsequent repeat operation. In many of the all known machines of this type it is necessary that the operator have knowledge of a succeedng repeat operation in order to set up condition in the present operation to effect said repeat oper tion. However, in the machine embodying this invention no knowledge is necessary on the of the operator of a subsequent repeat operation, as all that is necessary in it is desired to repeat an operation is to manipulate the repeat control mecharnsm.

In the following pages mechanism pertinent to the present invention will be described in detail.

DETAILED DESCRIPTION Framework Most of the mechanism of this machine is contained between and supported by a right side frame 3!) and a left side frame 3! (Fig. 4) secured to a machine base (not shown). The entire machine is enclosed in a suitable cabinet (not shown) which is in turn secured to the machine base.

Amount keys and their associated differential mechanism The instant machine has a plurality of denominational amount banks 32 (Figs. 1 and 4) supported by a rod 33 and a bar 34 extending between the frames as and 3!. Inasmuch as these amount banks and their associated differential mechanisms are exactly alike, it is believed sufficient to describe one such amount bank and its associated differential mechanism.

Depressing one of the amount keys 35 moves the lower end of the stem thereof in the path of a plate 37 secured to a main differential lever 33 and also moves said stem in the path of a nose 39 of an auxiliary differential lever 40, both of said levers being pivotally supported on a shaft 4| journaled in the frames 35 and 3!. The segmental lower end of the main lever 33 (Figs. 1 and 4) has therein teeth which mesh with a sector 42 secured to a differential sun wheel 43 turnably mounted. on a shaft 44 opposite ends of which are journaled in the frames 30 and 3 l. The auxiliary differential lever 40 has a segmental extension with gear teeth which mesh with a sector 45 loose on he shaft 44 and forming a support for a planet wheel 46 which connects the sun wheel 53 to similar sun wheel 4'5, secured to the shaft 44.

Depressing an amount key 35 causes a stud 33 thereon, in cooperation with. an angular slot in a control plate 49, pivotally connected b symmetrical links 58 and 5! to the key Fame 32, to impart clockwise rocking movement to said control plate is. Clockwise movement of the control plate 45 causes the link Si in cooperation with a bent-over ear 52 of a zero stop pawl 53 to rock stop pawl clockwise about its pivot 54 and against the tension of a spring 55. Clock wise movement of the pawl 53 moves a hook 55 thereof out of the path of an extension of a main difierential lever 38. 7

During each machine operation the 9 it it rocked first counterclockwise, as viewed in Fig. 1, and then back to normal position. This to and ovement of the shaft 4, by means Ui the s n wheel i! in cooperation with the planet 1; and the sun wheel 43, causes the companion differential levers 38 and id move toward each other in scissors fashion until the progress of one of said lovers is interrupted by engagement thereof with the stem of the depressed amount key. The differential lever that is not restrained continues its movement until it also engages the stern of the depressed key. As the differential levers 38 and 45] move together in the manner explained above one of said levers engages a stud in a type wheel and indicator differential plate as ioose on "he shaft 1!, and moves said plate in unison therewith until the tud 51 is held in the tong-like embrace of the levers 38 and 4 3, and positioned thereby coinmensurate with the vaiuc of the depressed amount key.

'lne differential positioning of the plate 59 by means of a pinion 6% is transmitted to a gear 6|, which in turn sets an indicator for that particular bank comrnensui ..e a the value of the depressed amount key. Differential powheel 62 secured on a shart 63 journaled in a cross frame 64, to the type carrier for that particular bank. The corresponding wheel 94 (Fig. 1A) of the selected tOvllZ'Bl is rocked into ongagement with a gear Q5 operatively connected to the main diiierential lever by gears 96, 9?, and 42, after said lever has con positioned by the depressed amount key, nd return movement of said lever adds an amount on the totalizer wheel corresponding the value of the depressed amount key.

Immediately after the difierential levers 38 and 40 have completed pos t 53 in the manner explains the succeeding machine operation. I fore obvious that the plate 59 and its associated indicator and type wheel sitions at the end of machine operation In total taking operations the me lever 38 in cooperation w- 40 positions the plate 5 in accorda amount on the wheel of the This is accomplished during the ini of said levers 3S and 40.

. al. movement Repeat mechanism The amount of the preceding operation, whether the result of an adding or a total taking operation, may be repeated in succeeding machine operations by means oi a manipulative device that locks the plate in its pro-set position and thus the stud 5! controls the p tioning of the differential levers 38 and 45 exactly as they were controlled during the precerl'tg operation by the depressed. amount key. It obviously unnecessary as well as u desirab e to depress amount keys in repeat opera .ons and to prevent this an interlocking device rendered effective by the repeat manipulative member locks the amount keys against dQI'Ll'l'ioslOl'i during repeat operations.

In its pref red form the present machine is provided with two starting bars (Fig. 52), regular starting bar and a repeat starting bar 66. The regular starting bar 65 is used to release the machine for o ation in all op rations e2;- cept repeat operat. ns.

Depressing the repeat bar 86 by means of a stud therein, in cooperation with an angular slot 68 in a control plate imparts counterain in their set clockwise movement to said control plate. The

plate 69 is rockably mounted on a frame ID, that supports the starting bars 65 and 66, by means of a lever 1| pivoted at 12 to the frame 10 and a link 13. counterclockwise movement of the plate 69 and incidental similar movement of the lever l| moves a rearward extension of said lever away from a stud 14 secured in one arm of a bell crank 15 fast on a sleeve 16 loose on a rod 11 supported by the frames and 3|.

Also secured on the sleeve 16 is an arm I8 connected by a rigid bar 19 to a similar arm 80 (Fig. i) rotatably supported by the rod ll. Counterclockwise movement of the lever permits a spring 8|, the upper end of which is connected to the arm 18, to rock the rigid transverse bar 19 into engagement with a tooth space in the top edge of the plate 59. This locks the plate 59 in the position in which it was set during the preceding machine operation.

In adding operations, depressing an amount key rocks the zero stop pawl 53 (Fig. 1) out of the path of the lever 38. However, as no amount key is depressed in repeat operations, it is necessary to provide other means to rock the Zero stop pawl 53 to ineffective position. A pitman 8| (Fig. 2) one end of which is pivoted to the plate 69 and the other end of which is bifurcated to straddle a rod 82 extending between the frames 3i! and 3| moves in unison with said plate 69 upon depression of the repeat starting bar 66. Movement of the pitman 8| by means of a stud 83 therein in cooperation with the forked upper end of a bell crank 84 secured to one end of a sleeve H5 loose on a rod 85 extending between the frames 30 and 3|, imparts counterclockwise movement to said bell crank 84. The lower end of the bell crank 84 is bifurcated to embrace a stud in an arm 81 loose on the sleeve H6 and connected by a transverse rod 88 to a similar arm 89 (see also Fig. 4). It is therefore obvious that the arms 81 and 89 and the rod 88 move counterclockwise in unison with the bell crank 85 when the repeat bar 65 is depressed. Counterclockwise movement of the rod 88 (Fig. 1) causes said rod, in cooperation with an angular extension of the zero stop pawl 53, to rock said pawl clockwise to remove the hook 56 thereof out of the path of the differential lever 38. After the zero stop pawl 53 is moved to ineffective position the differential levers 33 and 4!! move towards each other in a scissors-like manner until positioned by the stud 51 in the plate 53 which is locked in the position in which it was set in the preceding operation by the bar 19 (Fig. 2). This causes the amount of the previous operation to be repeated.

A cam. 90 (Figs. 2 and 4) is secured to a gear 93 loose on a rod 9| supported by the frames 33 and 3|. The gear 93 and the cam 9!! are driven one counterclockwise revolution each machine operation. Near the end of machine operation the periphery of the cam 90, in cooperation with a stud 32 in the bell crank 15, rocks said bell crank counterclockwise to disengage the locking bar if from the plate 59. Also near the end of machine operation the repeat starting bar 66 is released and is spring returned upwardly to undepressed position. Return movement of the repeat bar 56 causes'the stud. 61 in cooperation with the angular slot 68 to return the plate 69 and the lever H clockwise to normal position, in which position said lever l'l engages the stud H in the bell crank 15 when the lobe of the cam 9G moves beyond the stud 92, to retain the locking bar 19 out of engagement with the teeth in the difierential plate 59. Return movement clockwise of the plate 69 by means of the pitman 8| and the bell crank 8 1 (Figs. 1 and 2) returns the rod 88 also clockwise to permit the zero stop pawl 53 to be returned counterclockwise to effective position by the spring 55.

It is obvious from the foregoing description that by simply depressing the repeat starting bar 5% the amount of the preceding operation may be repeated for the purpose of entering said amount in one or more of the machine totalizers.

Interlock between the amount keys and the repeat starting bar Depressing one of the amount keys 35 (Fig. 1) actuates interlocking mechanism that prevents depression of the repeat starting bar 56 (Fig. 2) and likewise depressing the starting bar 66 actuates the interlocking mechanism to prevent depression of an amount key 35. This interlocking mechanism will now be described.

Pivoted to the upper end of the control plate 49 (Fig. 1) is a pitman 38, the upper end of which is bifurcated to embrace the rod 82. The pitman 98 carries a pin E39 adapted to cooperate with an arm ind, ecured to a sleeve iiil, loose on a rod I82, supported by the frames 36 and 3|. Also secured to the sleeve iEi| (Fig. 2) is an arm H33, adapted to cooperate with the stud 83 in the pitman 8|.

Depressing one of the amount keys 35 moves the control plate 19 and the pitman 98 upwardly, causing the stud S9 to impart counterclockwise movement to the arm Hit, the arm 583. This moves the arm 5 3 into contact with the stud 33 thereby blocking downward movement of the pitman 3i and the control bar 69 to obstruct depression of the repeat bar 59 when an amount key is depressed.

Likewise depressing the repeat starting bar 66 moves the stud 83 into contact with the arm 33 to block counterclockwise movement of said arm and the arm iilii (Fig. l.) to prevent depression of an amount key 35 when the repeat starting bar 65 is depressed.

Total control lever control lever ltd, the repeat startithe amount keys prevents depression of said repeat and said amount keys 3?: when the total control lever iii i is out of adding position. Likewise the interlocking mechanism locks the total control iever in adding position when either an amount key or the repeat GE is depressed. Such mechanism will now be de-- scribed.

The total control lever Hid is rotatably supported on the shaft and has a segmental portion with teeth which mesh with a gear 35, revolvahle on. the rod 9E. The gear I85 is secured to a locking disk 535, with an arcuate locking slot 59'! which coincides with a bent-over extension Hit of an arm 499 when the total control lever i534 adding position, as shown in Fig. 3. The arm 535 is secured to a sleeve iii! loose on the rod 85, said sleeve having also secured thereto an arm iii (Fig. i) which extends in the path of the stud $9 in the pitman 98.

Depressing an amount key 35 moves the plate sleeve it); and the total control I 49, the pitman 98 and the stud 99 upwardly to impart clockwise movement to the arm I I I, the sleeve I I and the arm I09. Clockwise movement of the arm I09 moves the extension I08 into the slot I0'I to lock the total control lever in adding position when an amount key is depressed. A spring II2 normally maintains the extension I08 out of the slot I0I when an amount key is not depressed and urges the arm III counterclockwise into contact with the stud 99. When the total control lever I04 is away from adding position the slot I0! is out of alinement with the extension I 08 and the periphery of the disk I06 blocks clockwise movement of the arms I09 and I I I to prevent depression of an amount key 35.

The disk I06 has another arcuate slot I I3 which coincides with a bent-over projection I I4 of an arm II5 when the total control lever I04 is in adding position. The arm II 5 is secured on one end of the sleeve II6 to the other end of which is secured the bifurcated bell crank 84 (Fig. 2). The sleeve I I6 is rotatably mounted on the sleeve II 0 which is turnably mounted on the rod 85. Depressing the repeat starting bar 66 imparts downward movement to the control plate 69 and the pitman 8| causing the stud 83 to rock the bell crank 84, the sleeve H6 and the arm II5 (Fig. 3) counter-clockwise to move the projection II4 into the slot II3 to lock the total control lever I04 in adding position when the repeat bar 66 is depressed. Moving the total control lever I04 out of adding position moves the notch II3 out of alinement with the projection II4, permitting the periphery of the disk I06 to block counterclockwise movement of the arm I I5, which by means of the sleeve H6 and the bell crank 84 blocks downward movement of the pitman BI and the control bar 69 to prevent depression of the repeat release bar 66 when the total control lever I04 is out of adding position.

MODIFIED FORM A modified form of repeat mechanism is illustrated in Figs. 5 and 6, in which a total control lever II9, similar to the total control lever I04, has four positionsviz., Add, Read, Reset and Repeat. When the total control lever H9 is in Repeat position, the amount keys are locked against depression and the differential control plate 59 is locked in the position to which it was adjusted in the preceding operation. Depressing the regular starting bar 51 sets the machine in motion to repeat the amount of the preceding operation. It will be understood that moving either the total control lever I04 of the preferred form, or the total control lever II9 of the modified form, away from adding position rocks the zero stop pawl 53 (Fig. 1) to ineffective position, in order that the stud 51 in the plate 59 may position the companion scissors levers 38 and 40 in the manner explained hereinbefore.

As in the preferred form, the total control lever I I9 has a segmental portion with teeth which mesh with a gear I20 secured to a control disk I2I rotatably supported by the rod 9|. The disk I2I (Fig. 5) has in the left face thereof a camming groove I22 into which extends a stud I 23 carried by an arm I24 secured to the righthand end of a sleeve I25 revolvable on the rod 11. Secured to the left end of the sleeve I25 is an arm I26 which supports one end of a transverse looking bar I21, the other end of which is supported by an arm (not shown) similar to the arm I26, and loose on the rod 11. The arm I26 and the locking bar I21 are similar to the arm I8 and the locking bar "I9 (Fig. 2) of the preferred form, and the locking bar I21 cooperates with the teeth on the upper portion of the plate 59 in exactly the same manner as the bar 19.

The configuration of the cam groove I22 is such that when the total control lever H9 is moved to Repeat position, clockwise movement is imparted to the arm I24, the sleeve I25, the arm I26 and the locking bar I21, to engage said locking bar with the teeth of the differential plate 59 to lock said plate in the position to which it was set in the preceding operation. Releasing the machine for operation by means of the starting bar 65 causes the amount of the preceding operation to be repeated in the manner explained above. It will be noted that when the total control lever H9 is in Add, Read, or Reset position the cam groove I22 maintains the locking bar I21 out of engagement with the plate 59.

The disk I2I has an arcuate slot I28 which is alined with the extension I08 of the arm I09 when the total control lever I I9 is in adding posh tion. Depressing an amount key 35 (Figs. 1 and 5) through the plate 49, pitman 98 and Stud 99 rocks the arm III, sleeve H0 and arm I09 clockwise to engage the extension I08 with the slot I28 to lock the lever H9 in adding position. Moving the lever Il9 away from adding position rotates the disk I2I clockwise to move the slot I28 out of alinement with the extension I08 and the periphery of the disk I2I obstructs clockwise movement of the arm I09 to prevent the depression of an amount key 35.

While the form of mechanism herein shown and described is admirably adapted to fulfill the .objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form or embodiment herein disclosed, for it is susceptible of embodiment in various forms, all coming within the scope of the claims which follow.

What is claimed is:

1. In a machine of the class described, having a plurality of amount keys, the combination of amount differential means, including companion members with complementary movement, said companion members adapted to be positioned for adding and total taking operations; a member arranged to be panion members in adding and total taking operations, and adapted to control the positioning of the companion members in repeat operations; means to lock the member in set position; a

manipulative device; and means operated by the manipulative device to render the locking means effective to lock the member in set position to cause said member to position the companion members to repeat the amount of the preceding operation.

2. In a machine of the class described, having a plurality of amount keys, the combination of companion levers with a complementary scissors movement adapted to embrace the stem of a depressed amount key to be positioned commensurate with said amount key for adding amounts; a member arranged to be set by the companion levers at the time said companion levers are positioned by the depressed amount key, said member adapted to remain in set position until the succeeding operation; teeth on the member; an element cooperating with the teeth to lock the member in set position; a manipulative device; and means operated by the manipulative device to render the locking means positioned by the comeffective to cause the amount of the preceding operation to be repeated in the succeeding operation.

3. In a machine of the character described, the combination of companion levers with a complementary scissors movement; a member adapted to be positioned by the companion levers in adding and total taking operations, and adapted to control the position of said companion levers in repeat operations, said member adapted to remain in set position until the succeeding operation; means to lock the member in set position; a manipulative device; and means whereby the manipulative device renders the locking means effective for the succeeding operation to retain the differential member in the position in which it was set in the preceding operation to position the companion levers commensurate therewith.

4. In a machine of the character described, capable of adding, totalizing and repeat operations, the combination of a settable differential member; means including two companion levers with complementary scissors movement to set the differential member in adding and total taking operations, said companion levers adapted to be positioned under control of the member in repeat operations; and means effective in repeat operations to retain the differential member in the position in which it was set by the companion levers in the preceding operation to cause said differential member to control the position of the companion levers commensurate therewith.

5. In a machine of the class described, capable of adding, totalizing and repeat operations, the combination of means to initiate repeat operations; a settable differential member arranged to remain in set position until the succeeding operation; companion levers with complementary scissors movement, said. companion levers setting the differential member in adding and total taking operations and positioned under control of said differential member in repeat operations; normally ineifective means to lock the diiferential member in set position; and means including a rockable element associated with the initiating means to render the locking means effective to cause the differential member to control the position of the companion levers commensurate therewith.

6. In a machine of the class described, capable of repeat operations, having a plurality of amount keys, the combination of a settable differential member adapted to remain in set position until the succeeding operation; means including companion levers to engage a depressed amount key and set the differential member accordingly, said companion levers positioned under control of the differential member in repeat operations; means effective in repeat operations to retain the differential member in the position in which it was set in the preceding operation by the companion members and the depressed amount key; a manipulative device; and means positioned by the manipulative device to render the retaining means effective.

7. In a machine of the character described, the combination of a differential member adapted to be set during a machine operation and remain set until the succeeding operation; means to lock the differential member against any movement when it is in set position; means to condition the machine for a repeat operation; a rockable element actuated by the conditioning means; and a part operatively connecting the element to the locking means to cause the conditioning means to render the locking means effective to lock the differential member in the position in which it was set in the preceding operation to retain the setting of said differential member in the succeeding operation.

8. In a machine of the class described, the combination of a rotatable differential member adapted to be set during a machine operation and remain set until the succeeding operation; means to rotate the differential member; means to lock the differential member against rotation from its set position; a manipulative device; a cam operated by the manipulative device; an element intermediate the cam and the locking means to cause movement of the manipulative device to a certain position to render the locking means effective to lock the differential member in the position in which it was rotated to the preceding operation to retain the setting of said difierential member in the succeeding operation.

9. In a machine of the class described, having a plurality of amount keys, the combination of a differential member adapted to be positioned during a machine operation and to remain so positioned until the succeeding operation; means to position the differential member commensurate with a depressed amount key; means rendered effective prior to the succeeding operation to lock the differential member in set position to retain the positioning of said differential member during the succeeding operation; a manipulative device; means connecting the manipulative device to the locking means to cause movement of said manipulative device to render the locking means effective; a control member movable to a plurality of positions; a disk operatively connected to the control member and having therein two notches; an element actuated by the connecting means and adapted to enter one of the notches upon movement of the manipulative device to lock the control members in a particular position; and a piece arranged to enter the other notch in the disk upon depression of an amount key to lock the control member in said particular position, said disk in cooperation with the element and the piece, adapted to prevent movement of the manipulative device and the depression of an amount key when the control member is out of said particular position.

10. In a machine of the class described, the

combination of a manipulative device to control repeat operations of the machine; complementary movable differential members; an element adjustable differentially by the complementary movable differential members according to the differential adjustment thereof; locking means for the element, normally in unlocking position; and connections between the manipulative device and the element to move the locking means into locking position upon operation of the manipulative device to lock the element in the position to which it was adjusted in the preceding operation, whereby the element controls the positioning of the differential members during the operation in which the manipulative device is operated to repeat the amount of the preceding operation.

ERNST BREI'I'LING.

4 CERTIFICATE OF CORRECTION.

Patent No. 2,111,909. March 22; 19580 ERNST BREITLING.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 5, second column, line 22, claim 8, for the word "in" second occurrence, read to; same line and claim, for "to read in; and that the said Letters Patent should be readwith these corrections therein that the same may conform to the record of the case in the Patent Office,

Signed and sealed this 5d day of May, Aa DB 1958.

Henry Van Arsdale, (Seal) Acting Commissioner of Patents.

.- CERTIFICATE OF CORRECTION.

Patent No. 2,111,909. 7 March 22, 1958.

' ERNST BREITLING.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 5, second column, line 22, claim 8, for the word "in" second occurrence, read to; same line and claim, for "to" read in; and that the said Letters Patent should be readwith these corrections therein that the same may conform to the record of the case in the Patent Office; Q

Signed and sealed this 5d day of May, A. D. 1958.

Henry Van Arsdale, (Seal) Acting Commissioner of Patents.

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